Search Results — 2000 specimen records retrieved (1341 records with coordinates)
(That's the default maximum. Contact Jason Alexander for larger data requests.)
Results for search: County=CONTRA COSTA; Source=All;   

Mapping Options:
BerkeleyMapper with county and bioregion layers
BerkeleyMapper without layers.
KML export
(Note: only records with coordinates are mappable)
Download Options:
Select all records · Select records with coordinates

Include annotations and voucher information

PLEASE NOTE: Due to changes in newer versions of Excel, directly copying text from the above selected results does not produce a usable table.
    Follow these steps:
      1. The contents of the selected results window must be copied into a text editor like TextEdit for Mac or WordPad for Windows
      2. The selected results must be saved as a new text document.
      3. This new text document can now be copied into Excel or imported as a tab delimited text file.

(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/consortium/).
 Records are made available under the CCH Data Use Terms.
Click on column header to sort data (* sorts by family); click in leftmost checkbox to select record. CCH Help Page.
Turn on yellow flags to show possible range discrepancies. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UC1050738  Acacia pycnantha N. Floy Bracelin 1941-4-6 1113 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1719694  Acacia redolens Barbara Ertter, Brad Olson 1994-5-7 12742 Contra Costa S end of Point Molate Beach Park, edge of San Francisco Bay N of Richmond to San Rafael bridge Comment
  UC1779711  Acacia verticillata Rudolf Schmid 1997-5-21 1997 -12 Contra Costa Hillside Natural Area, El Cerrito; NW of King Ct. entrance. 175 Comment
  CAS-BOT-BC436989  Acaena pinnatifida var. californica John Thomas Howell 1933-5-14 11285 Contra Costa Hills east of St. Mary's College Comment
  CAS-BOT-BC331612  Acer macrophyllum Paul F. Covel 1940-4-21 s.n. Contra Costa Las Trampas Canyon Comment
  CAS-BOT-BC331614  Acer macrophyllum John Thomas Howell 1926-3-7 1661 Contra Costa Mt. Diablo near toll gate Comment
  JEPS111581  Acer macrophyllum D. G. Kelch 2004-3-5 04 .15 Contra Costa Sky Ranch Dutra Fire Road. Franklin Canyon 90 Comment
  JEPS42648  Acer macrophyllum W. L. Jepson 1916-10-28 6853 a Contra Costa Las Trampas Creek Comment
  JEPS42649  Acer macrophyllum W. L. Jepson 1908-4-4 3005 Contra Costa West Branch San Pablo Creek Comment
Read comments Jul 7 2011
  UC1745531  Acer macrophyllum Annetta M. Carter, Florence Little 1937-4-4 1228 Contra Costa Las Trampas Canyon about 1/2 mi. E of St. Mary's College. Comment
  UC692719  Acer macrophyllum Mary L. Bowerman 1931-3-21 605 Contra Costa Sycamore Canyon Mount Diablo, Sycamore Canyon Comment
  CAS-BOT-BC334183  Acer negundo var. californicum Annetta Carter 1926-3-27 1384 Contra Costa San Leandro Canyon; Concord USGS 152 Comment
  CDA310  Achillea millefolium D. G. Kelch, A. G. Murdock 2003-8-13 3 .102 Contra Costa Carquinez Strait Region; Martinez Marsh. Comment
  JEPS100121  Achillea millefolium G. Smick 2003-4-22 GAS 141 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SEINET242919 Image available Achnatherum diegoense Mary E. Barkworth, Surrey W. L. Jacobs; Betty Jacob 2003-4-7 2003 /7 Contra Costa Tilden Reigonal Park, east of Berkeley Comment
  JEPS36722  Achyrachaena mollis W. L. Jepson 1923-4-22 9861 Contra Costa Mt. Diablo Comment
  UC1084392  Achyrachaena mollis G. Thomas Robbins 1937-4-25 145 Contra Costa 2 mi e Alamo Comment
  SEINET11854800  Achyrachaena mollis Ottley 1920-1 486 Contra Costa San Francisco Bay Region. Field near Eagle Point, Mt. Diablo 213 Comment
  UC29290  Achyrachaena mollis J. Burtt Davy May 13 1893-Jan 1 1900 766 Contra Costa Comment
  JEPS111513  Acmispon glaber Dean G. Kelch and Andrew G. Murdock 2005-5-13 05 .276 Contra Costa Martinez - West: Ozol Rock and Scenic Drive. Comment
  CHSC23289  Acmispon wrangelianus Carol Getzinger 1964-4-11 Contra Costa Along Arlington Boulevard at Patterson Circle, Richmond. 30 Comment
  JEPS111516  Adenostoma fasciculatum D. G. Kelch 2005-5-13 05 .279 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Ozol rock in chamise chaparral 66 Comment
  JEPS112095  Adenostoma fasciculatum D. G. Kelch 2005-3-25 05 .85 Contra Costa Pinole Peak Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course). East of Pinole Peak 250 Comment
  SEINET4089806  Adenostoma fasciculatum B. C. Templeton 1962-1 sn Contra Costa Mount Diablo. Comment
  UC1127726  Adenostoma fasciculatum R. W. Lundh 1933-2-1 199 Contra Costa Las Trampas Ridge Concord Quad., Las Trampas Ridge Comment
  CAS-BOT-BC65622  Adiantum jordanii D. E. Breedlove 1970-4-18 17432 Contra Costa at the north edge of Lafayette above Laurel Drive 243 Comment
  HSC93903  Adiantum jordanii C. Newberry 1994-4-30 7255 Contra Costa Mt. Diablo State Park, trail from Mitchell Canyon Parking to Donner Creek 900 Comment
  RSA0068494  Adiantum jordanii Katie Gallagher, Nick Jensen 2014-4-26 180 Contra Costa Las Trampas Regional Wilderness. 365 Comment
  SEINET12232133  Aesculus californica M. T. Dorett 1930-1 77 Contra Costa Marsh Creek Comment
  UC1795703  Agoseris grandiflora Barbara Ertter, Dale Sanders, Dan Norris 1994-3-26 12333 Contra Costa Peyton Hill east of I-680 east of Martinez, south of Waterfront Road 30 Comment
  UCD36920  Agoseris grandiflora Beecher Crampton 1956-5-14 3400 Contra Costa Mount Diablo, south of Windy Point. Comment
  CAS-BOT-BC22970  Agoseris heterophylla John Thomas Howell 1933-5-14 11260 Contra Costa Hills east of St. Mary's College Comment
  POM52175  Agoseris heterophylla C. F. Baker 1903-4-28 2831 Contra Costa Marsh Creek, Mt. Diablo. Comment
  UC691794  Agoseris heterophylla var. heterophylla Mary L. Bowerman 1933-5-18 2127 Contra Costa grassy slope Blackberry Spring; Mount Diablo Comment
  UCD92546  Agrostis Beecher Crampton 1959-9-3 5454 Contra Costa Cleared bed of Bear Creek, about 2 miles north of Orinda. Comment
  JEPS96230  Agrostis avenacea Barbara Ertter, Brad Olson 1991-9-28 10831 Contra Costa San Pablo Reservoir between Orinda and El Sobrante (at s. end of reservoir); San Pablo Reservoir 91 Comment
  CDA29913  Agrostis pallens D. G. Kelch, Suzanne Latham, Matt Beyers 2009-6-3 9 .335 Contra Costa East Bay.; El Sobrante Ridge at end of Silver Belt Dr. on Miocene chert outcrop. Comment
  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
  CDA39045  Agrostis pallens D. G. Kelch 2011-6-5 11 .574 Contra Costa Carquinez Strait; South of Crockett, south of Cummings Skyway. Comment
  SEINET5538014  Agrostis stolonifera J. Hamai 1985-1 s.n. Contra Costa Russell Reserve. Comment
  UC692383  Agrostis viridis Mary L. Bowerman 1936-8-17 3527 Contra Costa Sulphur Spring Mount Diablo, Pine Canyon 137 Comment
  UC2028230  Ailanthus altissima Barbara Ertter 1998-11-15 16466 Contra Costa North side Mount Olympia on north side Mount Diablo Comment
  UC2028455  Ailanthus altissima Barbara Ertter with Joanne Kerbavaz and Mary Bowerman 2000-8-20 17508 Contra Costa North side Mount Olympia in Mount Diablo State Park, bulldozed site of former occupation at Zippe Spring Comment
  UCD37582  Aira caryophyllea Beecher Crampton 1955-4-11 2471 Contra Costa Contra Costa County, city of Richmond, vacant lot at 42nd Street and Bissell Road. Comment
  UC2028522  Aira caryophyllea Barbara Ertter 1997-9-14 15810 Contra Costa Southwest side of Mount Diablo, Secret Trail at head of Pine Canyon. Comment
  UC1606340  Alisma plantago-aquatica Barbara Ertter, Brad Olson 1991-9-28 10847 Contra Costa between Orinda and El Sobrante (s end of San Pablo Reservoir); San Pablo Reservoir 94 Comment
  CAS-BOT-BC445382  Alisma plantago-aquatica Mary L. Bowerman 1935-9-13 3331 Contra Costa Mount Diablo. Chase Pond Comment
  CAS-BOT-BC175356  Allenrolfea occidentalis C. Hart Merriam 1906-9-13 s.n. Contra Costa Byron Hot Springs Comment
  CAS-BOT-BC175360  Allenrolfea occidentalis J. Burtt Davy 1898-5-1 s.n. Contra Costa Byron Springs, Mt. Diablo region Comment
  UC116546  Allenrolfea occidentalis K. Brandegee Oct. 1887 Contra Costa Antioch Comment
  UCR52247  Allenrolfea occidentalis E. E. Stanford 1930-5-24 1520 Contra Costa Near Byron 25 Comment
  CAS-BOT-BC175358  Allenrolfea occidentalis T. C. Fuller 1965-11-24 14321 Contra Costa On the slopes of the drainageway from Byron Hot Springs, s. side Byron Hot Springs Rd., 0.6 mi. s.w. of Byron-Tracy Hwy, ca. 1 mi. s.w. of Byron Comment
  RSA367058  Allium amplectens Mark Morris 1929-03 14928 Contra Costa Mt. Diablo. Comment
  UC494231  Allium serra Anna E. Ehlers 1920-4-25 571 Contra Costa Mt. Diablo Comment
  UC85605  Allium serra Katharine Brandegee 1907-5-5 Contra Costa bet. Antioch and Marsh Creek Comment
  CAS-BOT-BC475530  Allium serra Alice Eastwood 1914-3-14 3791 Contra Costa Byron Springs Comment
  CAS-BOT-BC475540  Allium serra E. M. Zeile 1922-6-3 s.n. Contra Costa Mount Diablo Comment
  SEINET12044784  Allium serratum J. T. Howell 1933-1 11284 Contra Costa E of St. Mary's College 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
  UC189380  Allium unifolium J. W. Congdon 1896-5-30 Contra Costa Mt. Diablo Comment
  UC2027774  Allium unifolium Barbara Ertter with Holly Forbes 1997-4-20 15566 Contra Costa North base of Mount Diablo, trail to Back Creek from Mitchell Canyon trailhead. Comment
  UC2027998  Allophyllum gilioides Barbara Ertter with Tony Morosco 1998-4-12 16021 Contra Costa Mount Olympia on north side of Mount Diablo, Olympia Road down ridge west of summit. Comment
  UC692034  Alnus rhombifolia Mary L. Bowerman 1931-10-13 1058 Contra Costa Alamo Canyon Mount Diablo 259 Comment
  CAS-BOT-BC170930  Alnus rhombifolia Walter Knight 1978-9-19 3265 Contra Costa Browns Island, Alder Point Comment
  UC691919  Amaranthus albus Mary L. Bowerman 1930-9-27 466 Contra Costa 2.25 mi by rd from Mt. Diablo north entrance (take trail by trough westerly, follow fence and go through, West Base spring); Mt. Diablo, West Base Spring Comment
  UC691932  Amaranthus albus Mary L. Bowerman 1935-6-28 3176 Contra Costa s of Meridian Peak summit (300 yds e of the meridian fence); Mt. Diablo 487 Comment
  UC2027840  Amaranthus blitoides Barbara Ertter 2000-9-30 17536 Contra Costa West side Mount Diablo, Briones-Mount Diablo Trail ca 1 mile NW of Macedo Ranch. Comment
  UC691934  Amaranthus californicus Mary L. Bowerman 1935-9-13 3336 Contra Costa Hidden Pond Mount Diablo Comment
  UC2027912  Amaranthus californicus Barbara Ertter 2000-9-30 17537 Contra Costa West side Mount Diablo, pond on west side of Briones-Mount Diablo Trail south of Stonegate Trail junction. Comment
  CDA7886  Amaranthus deflexus D. G. Kelch, A. G. Murdock 2004-7-9 04 .291-B Contra Costa Carquinez Strait; Crockett; Edwards Creek, immediately below high school. Comment
  UC2028561  Amaryllis belladonna Barbara Ertter with Mary Barkworth 2000-9-24 17528 Contra Costa North side Mount Diablo, near former well at Donner Cabin site on Donner Creek. Comment
  UC1555375  Ambrosia psilostachya Jerry Powell 1988-8-25 1547 Contra Costa w, on sandy beach Richmond; Point Molate Comment
  UC1618292  Amelanchier utahensis Barbara Ertter, CNPS 1990-8-19 9624 Contra Costa s side of E arm of Briones Reservoir n of Orinda (along Bear Creek Trail on EBMUD land); Briones Reservoir, Bear Creek Trail Comment
  JEPS102911  Ammannia coccinea Lisa Schultheis with Kevin Hintsa 1995-8-20 260 -95 Contra Costa Macedo Ranch, N edge, near house Mount Diablo Comment
  UC24599  Amsinckia J. Burtt Davy 1895-4-7 919 Contra Costa Antioch Comment
  CAS-BOT-BC222223  Amsinckia Alice Eastwood; John Thomas Howell 1936-4-19 2143 Contra Costa At Antioch Comment
  RSA0090926  Amsinckia eastwoodiae A. A. Heller 1941-3-24 15906 Contra Costa Byron Springs. Comment
  CHSC23356  Amsinckia intermedia Willis Ball 1975-2-23 448 Contra Costa Contra Loma Regional Park. In area #2. On s side of hill ca. 50 yds. ne of single restroom at sw end of reservoir, approximately 1/4 way up large hill. 38 Comment
  SBBG39713  Amsinckia intermedia J. T. Howell 1933-5-14 11225 Contra Costa St Mary's College Comment
  RSA0068499  Amsinckia intermedia Katie Gallagher, Nick Jensen 2014-4-26 175 Contra Costa Las Trampas Regional Wilderness. 365 Comment
  SD211561  Amsinckia intermedia Barbara Ertter, Jim Jokerst et al 1989-4-5 8130 Contra Costa Alkalai sink West and adjacent to Clifton Court Forebay, circa 15 airmiles Southwest of Stockton. Comment
  SEINET12519155  Amsinckia intermedia Richard R. Halse 1988-1 3541 Contra Costa Along State Hwy. 4 near its junction with Balfour Road on the south edge of Brentwood 5 Comment
  UC1094057  Amsinckia intermedia Francia Chisaki 1954-4-15 590 Contra Costa on Hwy #40 near it's junction with Hwy #4, between Pinole and Hercules Comment
  CAS-BOT-BC222465  Amsinckia lunaris Robert F. Hoover 1939-4-24 4058 Contra Costa Lower end of San Pablo Reservoir Comment
  JEPS75462  Amsinckia lunaris P. F. Yorks 1976-4-25 507 -2 Contra Costa n. Briones Reservoir (ca. 1.5 km. s. of Bear Creek Rd. on hampton Rd. in Hampton Rd. Natural Reserve); Hampton Rd. Natural Reserve 170 Comment
  JEPS85241  Amsinckia lunaris Roy E. Buck 1986-4-14 539 Contra Costa ca. 7 air km. n.-n.w. Orinda (n. of Briones Res., w. side Hampton Rd., cyn draining n. to Pinole Cr., ca. 0.25 km. n. of div. separat. Pinole Cr. & Bear Cr. watersheds) 228 Comment
  UC1084622  Amsinckia lunaris Francia Chisaki, Peter Kamb Ray 1952-5-4 2275 Contra Costa 1.5 mi e Orinda-Richmond road (leaving this road ca 1 mi n of Orinda); Bear Creek Road Comment
  UC525560  Amsinckia lunaris Joseph P. Tracy 1934-4-30 13196 Contra Costa near Lafayette; Coast Ranges 152 Comment
  UC762022  Amsinckia lunaris R. F. Hoover 1938-4-20 3178 Contra Costa lower end San Pablo Resevoir Comment
  CAS-BOT-BC222459  Amsinckia lunaris R. F. Hoover 1938-4-20 3178 Contra Costa San Pablo Reservoir, (lower end) Comment
  UCD119728  Amsinckia lycopsoides Morris Halperin 1929-4-21 s.n. Contra Costa St. Mary's College Campus. Comment
  CAS-BOT-BC26953  Amsinckia scabra Alice Eastwood 1923-5-4 11731 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC26957  Amsinckia sparsiseta Alice Eastwood 1914-3-14 3796 Contra Costa Byron Springs Comment
  RSA0091254  Amsinckia tessellata Ira L. Wiggins 1930-4-17 4558 Contra Costa Roadside 1 mi. E of Mountain House on road to Byron. Comment
  JEPS95672  Anagallis monelli Nancy Hillyard 2000-4-23 Contra Costa E-facing slope overlooking Siesta Valley (on Skyline Trail between Vollmer Peak and Sibley Park) 300 Comment
  UC2070515  Ancistrocarphus filagineus Barbara Ertter with Dan Norris 2001-4-8 17586 Contra Costa Lime Ridge Open Space east of Walnut Creek. Comment
  CAS-BOT-BC400255  Anemopsis californica A. D. E. Elmer 1903-6-1 4870 Contra Costa Walnut Creek Comment
  UC306614  Anemopsis californica A. D. E. Elmer June, 1903 4870 Contra Costa Walnut Creek Comment
  UC692069  Anemopsis californica Mary L. Bowerman 1931-5-28 903 Contra Costa Pine Canyon by Sulphur Spring (Mount Diablo); , Pine 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
  JEPS107105  Anthriscus caucalis Barbara Ertter, Lisa Schultheis 1995-4-27 14015 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; north-facing open brushy slope with scattered oaks along extension of Valley View road. 182 Comment
  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
  UC2029066  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Barbara Ertter 2000-7-29 17438 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
  UC12054  Aphanes occidentalis F. T. Bioletti 1892-4-8 Contra Costa Byron Comment
  UC1789149  Aphanes occidentalis Barbara Ertter with David Gowen and Mike Park 2004-4-13 18347 Contra Costa Black Diamond Mines Regional Park south of Pittsburg, ca 1 km due east of Sidney Flat headquarters Comment
  SEINET3156065  Apiastrum angustifolium T. S. Brandegee sn Contra Costa Mt. Diablo Comment
  SEINET13943445 Image available Apium graveolens Joseph Andorfer Ewan 1936-1 9714 Contra Costa Wildcat Creek Comment
  POM203649  Aquilegia formosa var. truncata J. T. Howell 1933-5-14 11253 Contra Costa Hills east of St. Mary's college Comment
  CDA37785  Arabis breweri unknown 1937-4-18 Contra Costa Northern California; Mt. Diablo. 0 Comment
  UC692482  Arbutus menziesii Mary L. Bowerman 1932-9-5 1548 Contra Costa Mount Diablo, Inner Black Hills, e of the meridian Inner Black Hills; Mount Diablo, Inner Black Hills Comment
  UCD166545  Arbutus menziesii Dylan O. Burge 2016-2-18 2046 Contra Costa Huckleberry Ridge. 390 Comment
  UC1795671  Arceuthobium campylopodum Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa 1995-10-22 14533 Contra Costa Three Springs Trail on northeast side of Mt. Diablo, woods above ranch. 365 Comment
  UC692043  Arceuthobium campylopodum Mary L. Bowerman 1931-10-31 1065 Contra Costa south Rd near junction Mount Diablo Comment
  CAS-BOT-BC410130  Arceuthobium occidentale J Kuijt 1958-1-22 s.n. Contra Costa Mt. Diablo Comment
  JEPS98884  Arctostaphylos R. Gankin, J. Roof, R. Hildreth, R. Brewer, W. and I. Knight 1964-10-7 Contra Costa nature trail, head of Dan Cook Canyon Mount Diablo Comment
  UCR58375  Arctostaphylos andersonii var. auriculata Walter Knight, I. Knight 1980-6-14 3744 Contra Costa Original from Mt. Diablo State Park (Now in Tilden Regional Park Botanic Garden) 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-BC24107  Arctostaphylos auriculata L. R. Abrams 1900-10-8 4348 Contra Costa Mt. Diablo 609 Comment
  CAS-BOT-BC24108  Arctostaphylos auriculata Alice Eastwood; John Thomas Howell 1936-4-19 2130 Contra Costa Nortonville Comment
  JEPS96259  Arctostaphylos auriculata Dean Kelch 1995-3-14 97 .15 Contra Costa Rock City Mt. Diablo; e. contra Costa Co., , Rock City 457 Comment
  RSA622482  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27598 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments Jan 30 2013
  UC1120857  Arctostaphylos auriculata H. A. Jensen 1938-10-27 455 Contra Costa head of Sycamore Creek Mt. Diablo Quadrangle 518 Comment
  UC1120858  Arctostaphylos auriculata H. A. Jensen 1938-10-27 450 Contra Costa head of Curry Canyon Mt. Diablo Quadrangle 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
  UC549569  Arctostaphylos auriculata J. E. Adams 1934-10-6 852 Contra Costa Rock City Mt. Diablo Comment
  UC692216  Arctostaphylos auriculata Mary L. Bowerman 1935-3-24 2750 Contra Costa between two major cuts of Cowell Cement Company (w face of ridge); Mount Diablo, Lime Ridge Comment
  UC692484  Arctostaphylos auriculata Mary L. Bowerman 1932-2-13 1086 Contra Costa on ridge between main forks of canyon Mount Diablo; , Alamo Canyon Comment
  UC75346  Arctostaphylos auriculata Alice Eastwood 1903-2-22 3161 Contra Costa Mt. Diablo Comment
Read comments Aug 25 2011
  UC83034  Arctostaphylos auriculata Katharine Brandegee 1889-1 Contra Costa Antioch Comment
  CAS-BOT-BC23590  Arctostaphylos crustacea Walter Knight; Irja Knight 1980-3-16 3715 Contra Costa Sobrante Ridge between Heavenly Ridge Lane and Castro Ranch road. Comment
  SEINET11989683  Arctostaphylos crustacea Unknown 1982-1 20829 Contra Costa on Rocky Ridge, about half way down from summit ridge (on 2nd-middle-shelf on ridges), Las Trampas 183 Comment
  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
  OBI14749  Arctostaphylos densiflora Robert F. Hoover 1962-3-23 8540 Contra Costa cultivated in Tilden Park Botanic Garden. Propagated from near Vine HIll School, Sonoma co. Comment
  OBI14772  Arctostaphylos glandulosa H. E. McMinn 1923-3-6 875 Contra Costa Sycamore Canon, Mt. Diablo Comment
  UC1120316  Arctostaphylos glandulosa subsp. glandulosa H. A. Jensen 1938-10-27 453 Contra Costa head of Sycamore Creek Mount Diablo Quadrangle Comment
  CAS-BOT-BC24661  Arctostaphylos glauca Charles M. Belshaw 1936-10-26 2720 Contra Costa 3/4 mi. ne. of North peak, Mt. Diablo. 609 Comment
  UC692498  Arctostaphylos glauca Mary L. Bowerman 1931-11-21 1068 Contra Costa near canyon bottom and Bilharan Mount Diablo, Donner Canyon Comment
  RSA632822  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27578 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  SEINET11991008  Arctostaphylos manzanita Unknown 1981-1 4 Contra Costa Mt. Diablo State Park, 10 mi from parks N gate Comment
  JEPS125932  Arctostaphylos manzanita subsp. laevigata D. W. Taylor 2001-3-21 17613 Contra Costa Mount Diablo State Park, near Balancing Rock; ridge forming southern watershed boundary Curry Creek Canyon. Comment
  JEPS19876  Arctostaphylos manzanita subsp. laevigata W. L. Jepson 1922-5-23 9660 Contra Costa canyon on s side Mt. Diablo Comment
  RSA164649  Arctostaphylos manzanita subsp. laevigata Percy C. Everett 1963-11-19 24499 Contra Costa Mt Diablo. 457 Comment
  UC549575  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 674 Contra Costa Mount Diablo Comment
  UC549750  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 689 Contra Costa Mt. Diablo Comment
  UC549756  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 685 Contra Costa Mt. Diablo Comment
  UC692222  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1930-8-31 443 Contra Costa Dan Cook (Rock City) Canyon Mount Diablo Comment
  UC909832  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 671 Contra Costa Mount Diablo Comment
  UCD51724  Arctostaphylos manzanita subsp. laevigata R. W. Lundh 1932-8-17 130 Contra Costa 1 mile East of Round Valley. 518 Comment
  UC692224  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1938-6-24 3693 Contra Costa road 8.9 mi from North Gate (crest of ridge above road, below Pines Picnic Area); Mount Diablo 792 Comment
  CAS-BOT-BC24382  Arctostaphylos manzanita subsp. manzanita Walter Knight; Irja Knight 1980-3-16 3713 Contra Costa Opposite 5996 Skyline Drive, El Sobrante. Comment
  CAS-BOT-BC42230  Arctostaphylos pallida H. E. McMinn 1925-1-1 s.n. Contra Costa Head of San Leandro Creek Comment
  LA42215  Arctostaphylos pallida J. A. Ewan; 1934-1-7 8162 Contra Costa Head of San Leandro Creek above Oakland Comment
  UC2070442  Arctostaphylos tomentosa Barbara Ertter with Kevin Hintsa et al. 2003-4-20 18160 Contra Costa Wall Point Road east of Emmons Canyon Road, west side of Mount Diablo. Comment
  HSC93964  Arctostaphylos tomentosa subsp. crustacea C. Newberry 1994-3-12 7164 Contra Costa Huckleberry Botanic Regional Preserve, Skyline Trail 244 Comment
  JEPS48823  Arctostaphylos tomentosa subsp. crustacea H. M. Wheeler 1944-1-16 27506 Contra Costa Moraga Ridge Oakland Hills Comment
  JEPS96258  Arctostaphylos tomentosa subsp. crustacea Dean Kelch 1995-3-14 97 .14 Contra Costa Rock City Mt. Diablo; e. Contra Costa Co., , Rock City Comment
  POM131600  Arctostaphylos tomentosa subsp. crustacea Jos Burtt Davy 1897-1 10651 Contra Costa Moraga Valley. Comment
  RSA164648  Arctostaphylos tomentosa subsp. crustacea P. C. Everett 1963-11-19 11774 Contra Costa Mt. Diablo. 457 Comment
  RSA202863  Arctostaphylos tomentosa subsp. crustacea Edward Lee 1935-12-28 1702 Contra Costa Western end of Las Trampas Ridge Comment
Read comments Jul 2 2011
  UC549440  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1935-10-21 550 Contra Costa Moraga Ridge Comment
  UC549446  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-12-8 920 Contra Costa Moraga Ridge 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
  OBI16786  Argyranthemum foeniculaceum G. Thomas Robbins, John Weiler 1959-5-23 4022 Contra Costa Brooks Island (its NW extension), San Francisco Bay, Richmond Comment
  CAS-BOT-BC400403  Aristolochia californica D. E. Breedlove 1970-4-18 17444 Contra Costa At the north edge of Lafayette above Laurel Drive 243 Comment
  JEPS100124  Aristolochia californica G. Smick 2003-2-27 GAS 55 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS75532  Aristolochia californica P. F. Yorks 1974-2-10 109 Contra Costa n of Briones Reservoir (1.6 km s of Bear Creek Road on Hampton Road in Hampton Road Natural Reserve); Hampton Road Natural Reserve Comment
  HSC3262  Aristolochia californica Greg Bos 1963-3-9 28 Contra Costa Pinole Valley Rd., SE of Pinole 61 Comment
  SD58208  Aristolochia californica L. J. Barker 1932-3-27 Contra Costa Orinda-Bear Valley road just over the divide on Pinole side. Comment
  SEINET12097752  Aristolochia californica M. T. Doutt 1931-1 253 Contra Costa San Pablo Creek near Orinda Comment
  UC29610  Arnica discoidea W. H. Brewer 1862-7-1 1302 Contra Costa Mount Hamilton Contra Costa Range, Mount Hamilton Comment
  UC29607  Arnica discoidea Brewer 1862-1 1302 Contra Costa Comment
Read comments Jan 20 2011
  JEPS111670  Artemisia californica D. G. Kelch 2003-3-21 03 .48 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  POM318719  Artemisia douglasiana Patricia Wilder 1961-8-27 1065 Contra Costa Walnut Creek, near Calif. Hwy 24. 24 Stanley Court. 42 Comment
  JEPS47810  Asclepias californica Frank A. Leach 1918-12-1 Contra Costa hill 1 1/2 mi sw Upper Pine Canyon; Mt. Diablo Comment
  SEINET10779730  Asclepias californica subsp. greenei D. G. Nelson 1937-4-24 Nelson 520 Contra Costa On Marsh Creek Road, between Byron and Clayton Comment
  UC22985  Asclepias fascicularis Edw. L. Greene June 1892 Contra Costa Walnut Creek Comment
  UCR63400  Asclepias vestita Donald G. Nelson 1937-4-24 520 Contra Costa Marsh Creek Rd, between Byron & Clayton Comment
  UC1584827  Asparagus officinalis subsp. officinalis Jerry Powell 1990-8-29 1589 Contra Costa Antioch National Wildlife Refuge Comment
  JEPS46413  Aspidium Sanford Feb. 1908 Contra Costa Clayton Comment
  CAS-BOT-BC478053  Asteraceae James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  UC1128838  Astragalus asymmetricus N. French 1935-7-19 644 Contra Costa 1/2 mi e Nortonville; Mt. Diablo Quad., e of Nortonville 304 Comment
  UC1128839  Astragalus asymmetricus G. T. Nordstrom 1937-10-28 1404 Contra Costa 1.4 mi nne Somersville; Mt. Diablo Quad., nne of Somersville Comment
  SEINET3127325  Astragalus didymocarpus var. didymocarpus Brandegee sn Contra Costa Antioch Comment
  CAS-BOT-BC178471  Astragalus gambelianus H. L. Mason 1928-4-15 4345 Contra Costa East-facing grassy slope, Moraga Ridge Comment
  SEINET10936877  Astragalus gambelianus John G. Lemmon 1872-1 Lemmon s.n. Contra Costa Mt. Diablo. Comment
  SEINET947942  Astragalus tener Peter H. Raven 1957-1 10586 Contra Costa 3.0 miles south of Byron. Comment
  CAS-BOT-BC66049  Athyrium filix-femina var. cyclosorum Brian Atwater 1978-10-24 BA- 171 Contra Costa between Bethel Island and Holland Tract 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
  UC480596  Athysanus pusillus Carl Meyer 1928-2-22 291 Contra Costa Mount Diablo Comment
  UC673344  Athysanus pusillus H. L. Mason 1929-3-29 5117 Contra Costa Mount Diablo 1066 Comment
  CDA9508  Atriplex argentea D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .235 Contra Costa CA Delta; Along Clifton Court Near Clifton Court Forebay. Comment
  RSA739722  Atriplex argentea subsp. expansa John Dittes 2006-10-26 1414 Contra Costa San Joaquin Valley (foothills near NW edge) 2 air mile S of Marsh Creek Reservoir Gauging Station, 1.6 air mile SW of intersection of Camino Diablo and Vasco Road, Contra Costa Water District s Los Vaqueros Watershed Mitigation. 67 Comment
  CAS-BOT-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
  POM181083  Atriplex coronata J. T. Howell 1930-9-28 5503 Contra Costa 5.4 miles from Byron on Marsh Creek Road. Comment
  RSA244713  Atriplex fruticulosa J. T. Howell, G. True 1972-6-29 48917 Contra Costa On Byron Hot Springs Road SE of Byron. Comment
  POM203039  Atriplex joaquinana J. T. Howell 1934-4-8 11823 Contra Costa South of Antioch, Contra Costa County Comment
  RSA603504  Atriplex joaquinana Carol W. Witham 1994-8-7 588 Contra Costa East of Bixler Road between Marsh Creek road and Point of Timber Road 3 Comment
  UC205040  Atriplex joaquinana Katharine Brandegee Contra Costa Antioch Comment
  UCD158700  Atriplex prostrata James A. Neilson Jr. 1972-10-22 3509 a Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 0 Comment
  RSA666484  Atriplex prostrata Barbara Ertter, E. Neese 1988-10-15 7979 Contra Costa Salicornia marsh west of I-580 in El Cerrito, west side along Rydin Road north of Central Avenue. Comment
  SEINET11263176  Atriplex rosea Barbara Ertter, Chris Thayer 1996-10-25 15367 Contra Costa NW flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park, intermittent surface water left in shaded stream in valley oak woodland and grassland.; 0 91 Comment
  UC473576  Atriplex triangularis John Thomas Howell 1931-10-31 8163 Contra Costa Bay Point 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
  CAS-BOT-BC145877  Avena fatua Alice Eastwood 1921-4-18 10261 Contra Costa Antioch. Comment
  CDA1747  Avena fatua G. D. Barbe 1983-5-22 4081 Contra Costa Mount Diablo State Park, along fire road north of Juniper Campground. Comment
  CDA19823  Avena fatua P. Akers 2002-5-11 s.n.- 2 Contra Costa Northern California; Mt Diablo Summit Trail at water tank picnic area. 873 Comment
  UC1948935  Avena fatua William J. Ferlatte, L. Maynard Moe 1970-4-27 1225 Contra Costa San Francisco Bay: Red Rock Island 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
  RSA381454  Avena fatua G. D. Barbe 1983-5-22 4081 Contra Costa along fire road north of Juniper Campground, Mount Diablo State Park. Comment
  POM301042  Baccharis douglasii Mary L. Bowerman 1938-9-17 3719 Contra Costa Willow Spring Comment
  CDA37435  Baccharis glutinosa D. G. Kelch, Mike Perlmutter 2011-9-23 11 .753 Contra Costa Immediately north of Discovery Bay. Comment
  JEPS111735  Baccharis glutinosa D. G. Kelch 2004-9-2 04 .338 Contra Costa Pacheco Marsh Marsh east of Martinez and I-680 and east of lone tree Marsh. 5 Comment
  JEPS104734  Baccharis pilularis John L. Morrison 1936-8-30 1848 Contra Costa Shasta Road, Wildcat Canyon Comment
  SEINET7239588 Image available Baccharis salicifolia Chesnut, Drew 1889-4-16 s.n. Contra Costa Clayton Comment
  RSA0033933  Balsamorhiza deltoidea Barbara Ertter, Holly C. Forbes 1997-4-20 15564 Contra Costa North base of Mount Diablo at NE base of Eagle Ridge. Lower end of Eagle Peak Trail. Comment
  UC2028394  Balsamorhiza deltoidea Barbara Ertter with Richard K. Brummitt 1998-5-13 16139 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, south leg of Loughler Loop Trail just west of pass over central ridge, NW-facing slope Comment
  UC1818940  Barbarea orthoceras Barbara Ertter, Mary Bowerman 1994-6-19 12843 Contra Costa Mt. Diablo State Park east of Walnut Creek; Muir Picnic Area on Summit Road, ca. 3300'; roadside cut thru chaparral. Comment
  UC691249  Barbarea orthoceras Mary L. Bowerman 1933-4-9 1841 Contra Costa Donner Canyon, west fork: By trail. Comment
  RSA666351  Bassia hyssopifolia Barbara Ertter, Brad Olson, Lynne Hosley, A. Youngson 1991-10-20 10885 Contra Costa Dow Wetlands Preserve, just W of Antioch marina. Comment
  CDA28899  Bellardia trixago D. G. Kelch, Troy MacGregor 2009-5-24 9 .3 Contra Costa Carquinez Strait; Carquinez Loop Trail S of Ozol, S-SW of Martinez, nr Wolcott Ln . Comment
  UC103480  Bellardia trixago Mr. Skelton 1901-5-12 Contra Costa Martinez Comment
  POM300991  Bellardia trixago Mary L. Bowerman 1938-5-25 3632 Contra Costa North Road 1.6 miles from North Gate where stream crosses road. 152 Comment
  SD30222  Bellardia trixago P. O. Schallert 1943-4-27 Contra Costa 1 mile east of Martinez, in meadow 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
  CAS-BOT-BC75786  Berberis pinnata H. E. McMinn 1923-3-17 897 Contra Costa Sycamore Canyon - 2 miles from Black Hawk Ranch - left canyon. Comment
  CAS-BOT-BC102034  Bidens laevis James McMurphy 1908-10-18 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC102032  Bidens laevis Walter Knight; Irja Knight; J. T. Howell; E. McClintock; et al. 1978-9-5 3242 Contra Costa Browns Island. Yucca Landing Comment
  JEPS68966  Blennosperma nanum Edward Lee 1935-3-10 1299 Contra Costa Nortonville South watershed of Kirker Creek Comment
  POM203483  Blennosperma nanum L. S. Rose 1933-3-10 33008 Contra Costa Marsh Creek. Comment
  JEPS25358  Blennosperma nanum var. nanum Rimo Bacigalupi with Paul C. Hutchinson and John Weiler 1959-3-19 6969 Contra Costa 1mi se, e of Byron Road Byron 6 Comment
  UC34577  Blennosperma nanum var. nanum H. M. Hall 1902-3-22 1695 Contra Costa Martinez San Francisco Bay Region Comment
  CAS-BOT-BC100333  Blepharizonia plumosa R. F. Hoover 1937-8-31 2704 Contra Costa Pittsburg Comment
  JEPS19359  Blepharizonia plumosa H. M. Hall 1916-8-17 10275 Contra Costa Los Medanos Region of San Francisco Bay, Suisun Bay Comment
  UC761865  Blepharizonia plumosa R. F. Hoover 1937-9-2 2708 Contra Costa Walnut Creek 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-BC15966  Boechera breweri subsp. breweri A. D. E. Elmer 1903-6-1 5096 Contra Costa Mount Diablo. Comment
  UC10111  Boechera breweri subsp. breweri H. P. Chandler and H. M. Hall 1901-4-5 Contra Costa Mt. Diablo summit Mt. Diablo Comment
  UC118056  Boechera breweri subsp. breweri G. W. Dunn 1892-3-12 Contra Costa Mt. Diablo Comment
  UC186865  Boechera breweri subsp. breweri J. W. Congdon 1896-5-8 Contra Costa Summit of Mount Diablo Mount Diablo Comment
  UC311620  Boechera breweri subsp. breweri E. W. Hicks 1917-3-24 111 Contra Costa w slope Mt. Diablo 1067 Comment
  UC614620  Boechera breweri subsp. breweri L. Constance, J. L. Morrison 1938-4-5 2192 Contra Costa near Mitchell Canyon (on w slope of Mount Diablo); Mount Diablo 609 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
  POM249869  Boisduvalia densiflora Joseph A. Ewan, Nesta Ewan 1935-8-23 9337 Contra Costa Shasta road entrance, Wildcat Creek drainage Comment
  CAS-BOT-BC31330  Bolboschoenus maritimus John Thomas Howell 1978-9-5 53356 Contra Costa Pittsburg Marina. Comment
  UCD140044  Bolboschoenus maritimus subsp. paludosus M. Wiesendanger 1926-6-1 1529 Contra Costa Richmond. Comment
  UCD35160  Bolboschoenus maritimus subsp. paludosus Beecher Crampton 1950-7-28 622 Contra Costa Richmond. Comment
  UC2028510  Bolboschoenus robustus Barbara Ertter with Tony Morosco 1998-9-18 16432 Contra Costa West slope Lime Ridge Open Space northwest of Mount Diablo, just southeast of Ygnacio Valley Road, southwest of sand quarry Comment
  CDA33584  Borago officinalis Guise, Deviney 2010-5-2 PDR# 1645151 Contra Costa Martinez; 651 Pine St. 0 Comment
  UC32474  Bowlesia incana Chesnut and Drew 1889-4-17 Contra Costa Clayton Comment
  POM300701  Bowlesia incana Mary L. Bowerman 1935-5-1 2937 Contra Costa North Road 2 miles from entrance, across the creek from the road, Mount Diablo. 183 Comment
  CDA10288  Brachypodium distachyon D. G. Kelch 2007-6-3 7 .433 Contra Costa East Bay; Along gated portion of Hampton Rd N of San Pablo Reservoir. Comment
  RSA721286  Brachypodium distachyon Barbara Ertter, Mary L. Bowerman 1995-5-7 14026 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, along road through annual grassland with scattered blue oak south of Marsh Creek. Road. summit. 305 Comment
  CDA23561  Brassica rapa D. G. Kelch 2008-3-3 8 .029 Contra Costa Carquinez Strait; Crockett. Under Zampa (Carquinez) Bridge. Comment
  JEPS78174  Brassica rapa Gary W. Zamzow 1973-1-26 125 Contra Costa 300 m. s. of Central Ave. overpass & 100 m. w. of Hoffman Blvd. on landfill at edge of bay Richmond Comment
  CAS-BOT-BC36725  Brassica rapa R. E. Frenkel 1964-9-19 851 Contra Costa On California Highway 21, Market Plaza Center, Alamo. 79 Comment
  UC691784  Brickellia californica Mary L. Bowerman 1933-9-3 2422 Contra Costa rocky gully on sw side of ridge, e of dry spring and above large flat North Peak (Mount Diablo); , North Peak Comment
  UC691792  Brickellia californica Mary L. Bowerman 1931-9-27 1051 Contra Costa road to Quicksilver Mind (Mount Diablo); Mount Diablo Comment
  UCD37380  Bromus Beecher Crampton 1960-3-29 5481 Contra Costa Contra Costa County, city of El Cerrito, corner of Carlson and Lassen Boulevards. Comment
  UCD60268  Bromus Beecher Crampton 1960-3-29 5481 Contra Costa El Cerrito, corner of Lassen St. and Carlson Blvd. Comment
  SEINET7297525 Image available Bromus berteroanus Beecher Crampton 1956-1 3415 Contra Costa Oak woodland, foothills, 1/2 mile west of Martinez Comment
  SEINET7106148  Bromus carinatus Beecher Crampton 1960-3-29 5481 Contra Costa City of El Cerrito, corner of Carlon and Lassen Boulevards.; 0 Comment
  UC1948971  Bromus carinatus William J. Ferlatte, L. Maynard Moe 1970-4-27 1237 Contra Costa San Francisco Bay: Red Rock Island Comment
  UCD58227  Bromus carinatus P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UCD58246  Bromus carinatus A. A. Beetle 1942-3-22 2931 Contra Costa Brooks Island in San Francisco Bay. Comment
  UCD58300  Bromus carinatus G. Thomas Robbins 1959-4-18 3991 Contra Costa Along Western Drive. Near and north of Pt. Richmond. Western base of Potrero Hills. Richmond. 4 Comment
  SEINET10520207  Bromus carinatus Alan A. Beetle 1942-3-22 Beetle 2931 Contra Costa Brooks Island, San Francisco Bay, near Richmond. Comment
  UC692285  Bromus carinatus var. carinatus Mary L. Bowerman 1935-5-16 3010 Contra Costa behind Gabriel-Hinks (Mount Diablo, e side of North Peak); Mount Diablo, North Peak 289 Comment
  CAS-BOT-BC149543  Bromus carinatus var. carinatus David C. Rentz 1968-4-29 5 Contra Costa Between homes near Oak View Avenue on Ocean View Avenue. Kensington. Comment
  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
  UC2028538  Bromus catharticus Barbara Ertter 1998-2-15 15917 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, Edge of Bob Pond and picnic area at Old Borges Ranch. Comment
  CHSC21647  Bromus diandrus Willis Ball 1975-3-2 477 Contra Costa Contra Loma Regional Park. In area #4. On e side of lake ca. 175 yds s of dam. 30 Comment
  UCD36912  Bromus diandrus Beecher Crampton 1956-5-14 3378 Contra Costa 4.6 miles south of city of Antioch, on Empire Mine Drive, at head of Horse Valley. Comment
  POM300689  Bromus hordeaceus Mary L. Bowerman 1933-4-15 1870 Contra Costa Canyon south of Arroyo del Cerro: Rocky knoll 250 feet below spring. Comment
  POM300690  Bromus hordeaceus Mary L. Bowerman 1931-5-13 839 Contra Costa Pine canyon floor one mile above the sulphur spring Comment
  UC2032813  Bromus hordeaceus Doran, Andrew Scott 2012-3-20 683 Contra Costa North end of Brooks Island along ridge, cleared area northwest of caretakers residence. Comment
  UC677560  Bromus hordeaceus P. F. Knowles 1941-1 8710 Contra Costa Briones Hills 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
  SEINET10514555  Bromus hordeaceus Knowles 1941-1 KNOWLES 87 -10 Contra Costa Briones Hills, cultivated, greenhouse. Comment
  CAS-BOT-BC162451  Bromus laevipes Leon E. Pavlick; L. R. Abrams 1921-5-25 8041 Contra Costa At spring 4.25 miles from summit of Mount Diablo. Comment
  POM300673  Bromus madritensis Mary L. Bowerman 1935-3-3 2961 Contra Costa Sloan Road. 488 Comment
  UCD36914  Bromus madritensis Beecher Crampton 1956-5-14 3385 Contra Costa 6.7 miles southwest of city of Antioch, along ridge between old coal mining towns of Somersville and Nortonville. Comment
  UCD58960  Bromus madritensis Beecher Crampton 1966-4-26 7664 Contra Costa Ca. 2.5 miles west of Martinez. On the road to Crockett. Comment
  SEINET191355 Image available Bromus madritensis P. F. Knowles B 139 Contra Costa CULTIVATED ; Briones Hills greenhouse Davis. Comment
  CDA29219  Bromus madritensis subsp. madritensis D. G. Kelch 2006-5-7 6 .143 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  UC691208  Bromus madritensis subsp. madritensis M. L. Bowerman 1932-4-27 1382 Contra Costa S face, canyon W of Riggs Canyon Oyster ridge 335 Comment
  UC691213  Bromus madritensis subsp. madritensis Mary L. Bowerman 1933-4-26 1912 Contra Costa ese of North Peak (Mount Diablo); Mount Diablo 609 Comment
  UC692336  Bromus madritensis subsp. madritensis Mary L. Bowerman 1932-4-27 1371 Contra Costa canyon w of Riggs Canyon (s face of Oyster Ridge, Mount Diablo); Mount Diablo, Oyster Ridge 289 Comment
  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
  UC677559  Bromus madritensis subsp. rubens A. A. Beetle 1942-3-22 2930 Contra Costa Taber Island, small Island off north west side of Brooks Island, San Francisco Bay, Contra Costa County. Comment
  POM300688  Bromus rubens Mary L. Bowerman 1933-5-2 1944 Contra Costa Below Pioneer Camp; Mount Diablo. 762 Comment
  SEINET10868253  Bromus rubens Lewis S. Rose 1935-5-16 Rose 35169 Contra Costa Mt. Diablo, S slope. Comment
  CDA8350  Bromus sterilis D. G. Kelch, A. G. Murdock 2005-5-13 05 .268-B Contra Costa Carquinez Strait; Martinez-West: Ozol Rock and Scenic Drive. Ozol rock in road cuts. 0 Comment
  UC2029187  Bromus sterilis Barbara Ertter 2000-5-14 17013 Contra Costa Donner Basin on north side of Mount Diablo, Falls Trail between Donner Creek and Wild Oat Canyon Comment
  UC2028467  Bromus tectorum Barbara Ertter 1997-8-24 15775 Contra Costa Mount Diablo, around summit Comment
  RSA720800  Bromus tectorum Mary L. Bowerman 1978-5-26 s.n. Contra Costa Mount Diablo. N of Lower Summit parking lot. Comment
  UC585535  Calamagrostis rubescens Virginia E. Long 1933-6-14 222 a Contra Costa Inner Black Hills Mt. Diablo (n slope) Comment
  UCD57736  Calamagrostis rubescens G. L. Stebbins Jr. 1942-8-16 3297 Contra Costa 3 miles north of Berkeley, Wildcat Canyon, opposite army camp. Comment
  UCSC000102  Calamagrostis rubescens G. L. Stebbins Jr. 1942-8-16 3297 Contra Costa 3 miles north of Berkeley, opposite army camp Berkeley - Wildcat Canyon Comment
  UC1980316  Calamintha sylvatica subsp. ascendens Barbara Ertter with David Gowen 2011-10-6 20918 Contra Costa Tilden Regional Park in hills east of Berkeley; lower Vollmer Peak Trail southeast of Big Spring picnic area Comment
  CAS-BOT-BC233993  Calandrinia breweri R. F. Hoover 1939-4-13 4019 Contra Costa Head of Markley Canyon (west branch) Comment
  CAS-BOT-BC438367  Calandrinia ciliata V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley Comment
  CAS-BOT-BC438372  Calandrinia ciliata Mary L. Bowerman 1939-5-2 3741 Contra Costa Mount Diablo. By road to Barbecue Terrace (off South Road) 563 Comment
  UC1300961  Calandrinia ciliata Helen K. Sharsmith 1962-4-7 4920 Contra Costa Appian Way near El Sobrante 121 Comment
  JEPS48655  Calandrinia ciliata Elsa Kraeger 1926-5-7 Contra Costa near Toll Gate (road to Mt. Diablo) Comment
  JEPS108319  Calendula arvensis David Gowen 2005-2-23 166 Contra Costa Mt. Diablo State Park. Juniper Trail just south of Silver Spring. Comment
  JEPS111740  Calendula arvensis D. G. Kelch 2005-3-11 05 .40 Contra Costa McEwen Road Carq. Shoreline EBRP. West of Martinez Highschool. 192 Comment
  CAS-BOT-BC167286  California macrophylla Brandegee s.n. Contra Costa Antioch 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
  NY409592  Callitriche marginata B. J. Ertter 1989-4-5 8144 Contra Costa Alkali sink W and adjacent to Clifton Court Forebay, ca. 15 air miles SW of Stockton, near sea level Comment
  CDA1412  Calocedrus decurrens D. G. Kelch 2006-10-23 06 .205B Contra Costa Carquinez Strait; Crockett. Comment
Read comments Aug 28 2018
  UC2028218  Calochortus argillosus Barbara Ertter with Christopher Baysdorfer 1998-5-10 16128 Contra Costa West-center Lime Ridge Open Space northwest of Mount Diablo. Comment
  JEPS122394  Calochortus pulchellus Nisrine Machaka-Houri 2014-5-17 NG 14 Contra Costa Black Point Trail, Mitchell Canyon, Mt. Diablo State Park. Comment
  RSA215950  Calochortus pulchellus D. E. Breedlove 1970-4-18 17425 Contra Costa At the north edge of Lafayette above Laurel Drive 244 Comment
  UC176356  Calochortus pulchellus R. P. Brandt 1914-5-2 Contra Costa near farm house, in branch of Pine Canyon Mt. Diablo, Pine Canyon Comment
  CAS-BOT-BC132503  Calochortus pulchellus H. M. Hall 1916-5-30 10132 Contra Costa Mt. Diablo, north slopes, near Pine Canyon 365 Comment
  UCD139551  Calochortus pulchellus H. A. Stout; T. C. Wainwright 1980-4-13 3 Contra Costa Mallory Ranch, around 1/2 mile east of Morgan Territory road. 609 Comment
  UC1601662  Calochortus umbellatus W. H. Brewer 1862-5-1 1035 Contra Costa s of Camp 69; Walnut Creek Comment
  UC2028988  Calochortus venustus Barbara Ertter 2000-5-14 17007 Contra Costa Donner Canyon on north side of Mount Diablo, SW end of Falls Trail between Middle Trail and Donner Creek crossing. Comment
  UCD95579  Caltha palustris E. Dean; with Thomas Starbuck 1993-5-1 359 Contra Costa Oakland hills, canyon E of Skyline Blvd., growing in stream that separates Huckleberry Preserve from Sibley Volcano Park, along Skyline Trail, near old homestead site. Comment
  UCD95580  Caltha palustris E. Dean; with Thomas Starbuck 1993-5-1 359 Contra Costa Oakland hills, canyon E of Skyline Blvd., growing in stream that separates Huckleberry Preserve from Sibley Volcano Park, along Skyline Trail, near old homestead site. Comment
  UCD129979  Calycadenia truncata Ann F. Johnson 1978-8-19 s.n. Contra Costa Mt. Diablo State Park. Comment
  CAS-BOT-BC418628  Calystegia R. K. Brummitt; B. Ertter 2012-6-17 22061 Contra Costa Berkeley Hills, Tilden Park, Seaview Trail north of Vollmer Peak Comment
  UC1794967  Calystegia malacophylla subsp. pedicellata R. K. Brummitt, J. Strother and B. Baldwin 1997-5-27 19606 Contra Costa Mount Diablo, W side, Murchio Gap 800 Comment
  CAS-BOT-BC224752  Calystegia malacophylla subsp. pedicellata Paul F. Covel 1940-5-12 1785 Contra Costa Summit Mt. Diablo Comment
  UC2028302  Calystegia malacophylla subsp. pedicellata Barbara Ertter, Susan D'Alcamo 1998-6-12 16189 Contra Costa North Peak Trail south of Prospectors Gap on east side of Mount Diablo summit. Comment
  JEPS78819  Calystegia purpurata Edward Lee 1936-5-24 2160 Contra Costa about 2 mi se Curry Canyon (Marsh Creek, Morgan Territory); Morgan Territory, se of Curry Canyon, Marsh Creek Comment
  UC691851  Calystegia purpurata Mary L. Bowerman 1931-4-4 658 Contra Costa North Road 4.5 mi from North Gate Mount Diablo (bank above road); Mount Diablo 396 Comment
  HSC6375  Calystegia purpurata Greg Bos 1963-4-10 70 Contra Costa Rock Quarry, Richmond, El Cerrito Hills W end 76 Comment
  CAS-BOT-BC202026  Calystegia sepium subsp. limnophila J. W. Congdon 1893-7-30 s.n. Contra Costa Martinez Comment
  CAS-BOT-BC202027  Calystegia sepium subsp. limnophila Ira L. Wiggins 1954-9-5 13122 Contra Costa Levee along Bethel Island Comment
  CDA41299  Calystegia sepium subsp. limnophila G. F. Hrusa, D. Crowe, R. York 1998-7-17 14728 Contra Costa Sacramento Delta; Betw. Dow Ecological Reserve and San Joaquin R. Sheet 2 of 2. Comment
  JEPS47838  Calystegia subacaulis W. L. Jepson 1922-6-7 9719 a Contra Costa North Berkeley Hills Comment
  RSA710249  Calystegia subacaulis R. K. Brummitt, Barbara Ertter, N. A. Brummitt 1998-5-6 19788 Contra Costa Mt. Diablo. NE side, Donner Track. 400 Comment
  JEPS44361  Camissoniopsis intermedia W. L. Jepson 1921-11-19 9520 Contra Costa Mt. Diablo Comment
  RSA0068484  Camissoniopsis intermedia Katie Gallagher, Nick Jensen 2014-4-26 191 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  UC1051189  Campanula persicifolia var. alba N. Floy Bracelin 1944-6-19 2737 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CHSC21613  Capsella bursa-pastoris Willis Ball 1975-2-23 438 Contra Costa Contra Loma Regional Park. In area #1. Ca. 10 yds e of restroom facility on n side of lake. 30 Comment
  RSA29680  Capsella bursa-pastoris Joseph A. Ewan 1936-5-3 9495 Contra Costa Wildcat Creek near Orinda road bridge. Comment
  SBBG29852  Cardamine californica A. Carter, H. Sharsmith 1940-3-17 1498 Contra Costa near Stege Railroad Stn, 2 mi SE of Richmond 7 Comment
  UC1126900  Cardamine californica R. W. Lundh 1933-3-20 215 Contra Costa 2 mi nw Walnut Creek, Canada del Hambro; Concord Quad. 182 Comment
  UC2028278  Cardamine californica Barbara Ertter 1999-3-21 16490 Contra Costa NW corner of Miller Knox Regional Shoreline, Potrero Hills SW of Richmond; abandoned trail on north side of crest. Comment
  UC1795656  Cardamine californica var. californica Barbara Ertter, Gary Schoolcraft 1996-4-7 14580 Contra Costa Molate Beach Park on San Francisco Bay north of San Rafael Bridge; coastal prairie and brushland on bluff. Comment
  POM272925  Cardamine californica var. integrifolia Lyman Benson 1935-3-16 6277 Contra Costa Mitchell Canyon near Clayton; Mt. Range: Mt. Diablo; Watershed: Walnut Creek. 244 Comment
  UCR17092  Cardamine oligosperma James K. Ryan 1969-3-31 46 Contra Costa Mt. Diablo State Park, Horseshoe Picnic Area, very close to area entrance 610 Comment
  JEPS111068  Cardamine oligosperma Lee Echols 2003-3-7 s.n. Contra Costa N of Lark Drive in S portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  UC2029039  Cardamine oligosperma Barbara Ertter 2000-3-19 16897 Contra Costa Southwest side of Mount Diablo, Stage Road along Pine Creek, ca 1/2 mile above Pine Pond. Comment
  CDA33553  Cardaria chalepensis Guise/McClure 2010-5-24 PDR# 1645228 Contra Costa Pleasanton; Old School Road. 0 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
  CAS-BOT-BC281736  Carduus pycnocephalus Paul F. Covel 1938-6-26 s.n. Contra Costa Las Trampas Canyon, behind St. Mary's Comment
  CAS-BOT-BC281737  Carduus pycnocephalus John Thomas Howell 1933-5-14 11246 Contra Costa Hills E of St Mary's College Comment
  UC2028217  Carduus pycnocephalus Barbara Ertter with Christopher Baysdorfer 1998-5-10 16129 Contra Costa West-center Lime Ridge Open Space northwest of Mount Diablo. Comment
  CAS-BOT-BC281805  Carduus tenuiflorus John Thomas Howell 1933-5-21 11323 Contra Costa San Pablo Comment
  POM226232  Carduus tenuiflorus J. T. Howell 1933-5-21 11323 Contra Costa San Pablo Comment
  CDA29516  Carex barbarae D. G. Kelch, Troy MacGregor 2009-5-1 9 .277 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  JEPS25138  Carex barbarae G. Thomas Robbins 1959-5-16 4008 Contra Costa Caly [clay] banks and rivulet just north of Point Orient, Potrero Hills, overlooking San Francisco Bay, Richmond Comment
  UC1555369  Carex barbarae Jerry Powell 1988-3-8 1526 Contra Costa Point Molate in W Richmond Comment
  RSA153458  Carex barbarae G. Thomas Robbins 1959-5-16 4008 Contra Costa Just north of Pt. Orient, Potrero Hills, overlooking San Francisco Bay, Richmond. Comment
  UC2028542  Carex barbarae Barbara Ertter 1998-3-7 15932 Contra Costa Dan Cook Canyon on southwest side of Mount Diablo. Comment
  UC2028415  Carex globosa Barbara Ertter with Alan Whittemore, Joanne Kerbavaz, et al. 2001-5-22 17650 Contra Costa South side Mount Diablo, headwaters of West Branch Alamo Creek ESE of Knobcone Point, below powerline at end of Knobcone Point Road Comment
  UC2070509  Carex globosa Barbara Ertter with Dan Norris 2001-4-8 17594 Contra Costa Lime Ridge Open Space east of Walnut Creek. Comment
  UC2070640  Carex nudata Barbara Ertter 2002-8-24 18033 Contra Costa Lower Perking Canyon on NE base of Mount Diablo. Comment
  CAS-BOT-BC119426  Carex obnupta N. Stone 1941-4-5 23 Contra Costa Lake Anza, Wildcat Canyon. 198 Comment
  UC1618279  Carex pellita Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10705 Contra Costa opposite Pittsburg Marina (near w end of island, n of Pittsburg, near confluence of Sacramento and San Joaquin rivers); Browns Island Comment
  CHSC111020  Carex pendula Barbara Ertter; 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 m N of Paraiso Trail, 37.927 deg. N 121.979 deg. W ca. 180 m (also in spring area in mid drainage, 37.927 deg. N 121.981 deg. W, ca 195 m). 180 Comment
  UC1949084  Carex pendula Barbara Ertter with Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 19797 Contra Costa upper (south) end of San Pablo Dam Reservoir northwest of Orinda Comment
  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
  UC2028414  Carex praegracilis Barbara Ertter with Dan Norris 2000-12-3 17553 Contra Costa South side Mount Diablo, Devils Slide Trail above Sulfur Springs on NW fork of Sycamore Creek Comment
  CAS-BOT-BC117551  Carex serratodens Miss Mary Leolin Bowerman 1933-4-15 1856 Contra Costa Canyon south of Arroyo del Cerro Comment
  RSA0029049  Carex subbracteata Barbara Ertter 1999-3-21 16491 Contra Costa NW corner of Miller Knox Regional Shoreline, Potrero Hills SW of Richmond. Abandoned trail on north side of crest. Comment
  HSC87801  Castilleja affinis Jennifer Roth 1979-4-29 35 Contra Costa Clayton, Russleman Park Rd. off March Creek Rd. Concord Mt. Diablo Trail Ride Association grounds. 335 Comment
  UC765541  Castilleja affinis subsp. affinis R. F. Hoover 1938-5-4 3346 Contra Costa peak e of Tassajero Creek Comment
  JEPS9949  Castilleja attenuata W. L. Jepson 1923-4-22 9873 Contra Costa Mt. Diablo Comment
  JEPS19440  Castilleja densiflora subsp. densiflora Rimo Bacigalupi with G. T. Robbins 1956-5-11 5640 Contra Costa .33 mi e Pinole (between State Highway 4 (Franklin Canyon Rd) and Santa Fe Ry. right-of-way, 0.25 mi e of junction of this rd with U.S. Hwy 40) 22 Comment
  JEPS74807  Castilleja densiflora subsp. densiflora L. R. Heckard, T. I. Chuang and R. Bacigalupi 1975-5-7 4015 Contra Costa ca 0.5 mi e Pinole (just e of Interstate Hwy 80, along main route of Santa Fe Railroad) Comment
  JEPS23261  Castilleja densiflora subsp. densiflora G. Thomas Robbins 1959-4-26 4005 Contra Costa about 1 mi ne Giant (about 0.25 mi n of San Pablo Oil Tank Farm) 15 Comment
  UC1819018  Castilleja densiflora subsp. densiflora Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14676 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay; grassland/scrub at northeast corner of area. Comment
  CDA41325  Castilleja exserta subsp. exserta D. G. Kelch 2005-5-13 5 .239 Contra Costa Carquinez Strait Region; Martinez. South of oil refinery along railroad tracks in fragment of habitat. Comment
  JEPS15607  Castilleja exserta subsp. exserta R. Bacigalupi and G. Thomas Robbins 1955-5-4 4972 Contra Costa e outskirts Concord (field along Treat Lane, in Clayton Valley); Clayton Valley, Concord 60 Comment
  UC27266  Castilleja exserta subsp. exserta State Survey 1117 Contra Costa near Clayton; Kirker Pass Summit Comment
  UC691594  Castilleja foliolosa Mary L. Bowerman 1931-4-18 730 Contra Costa basin of ne-fork Sycamore Canyon; Mount Diablo Comment
  CAS-BOT-BC40508  Caulanthus lasiophyllus A. A. Heller 1908-4-17 8907 Contra Costa Hills three miles south of Antioch. 18 Comment
  UCD111741  Ceanothus cuneatus W. Ebeling 1929-3-19 s.n. Contra Costa Mount Diablo. Comment
  UCD112079  Ceanothus cuneatus M. Wiesendanger 1926-6-1 1532 Contra Costa Mt. Diablo. Comment
  UC80011  Ceanothus cuneatus var. cuneatus G. W. Dunn 1892-3-12 Contra Costa Mt. Diablo Comment
  CHSC24694  Ceanothus oliganthus var. sorediatus G. Strang 1976-4-17 15 Contra Costa 2 .7 mi w of Canyon school on Pinehurst Rd. on se facing bank. 121 Comment
  UC18334  Ceanothus oliganthus var. sorediatus State Survey 1862-5-17 1005 Contra Costa Mt. Diablo Comment
  JEPS42148  Ceanothus thyrsiflorus W. L. Jepson 1922-5-11 9634 Contra Costa North Berkeley Hills Comment
  CDA43453  Cenchrus longispinus Sinz & Brumfield 2015-9-18 PDR# 070 P06223639 Contra Costa Oakley; 514 Christy Street. 0 Comment
  UCD159458  Centaurea calcitrapa D. S. Park; K. Yeo 2010-8-7 212 Contra Costa Mare Island. Along Railroad Rd. Growing next to old railroads w/ Cichorium, parsnip. Shrubby. Road blocked. 8 Comment
  CAS-BOT-BC284463  Centaurea solstitialis Chester Dudley 1931-7-1 s.n. Contra Costa Walnut Creek Comment
  CDA36467  Centaurium tenuiflorum Ed Swan 2011-8-18 PDR# 1641228 Contra Costa Orinda; Bear Creek Road near Fire Trail 43-4. 0 Comment
  JEPS111774  Centranthus ruber D. G. Kelch 2004-6-19 04 .282 Contra Costa Crockett-Tormey Headlands. Along railroad tracks west of Carquinez Bridge Crockett (Valona) Contra Costa County CA 20 Comment
  UC1050884  Centranthus ruber N. Floy Bracelin 1942-5-17 1288 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1050885  Centranthus ruber N. Floy Bracelin 1942-5-17 1287 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UCD137523  Centranthus ruber S. P. Lynch 1974-4-24 499 Contra Costa along Clayton Road east of Conrad, Mt. Diablo. Comment
  CAS-BOT-BC288540  Centromadia fitchii John Thomas Howell 1930-9-28 5497 Contra Costa 6.3 miles from Byron on the Marsh Creek Rd Comment
  JEPS35031  Centromadia fitchii W. L. Jepson 1895-9-14 Contra Costa Walnut Creek Comment
  UC990583  Centromadia parryi subsp. congdonii James I. McMurphy 1909-9-24 Contra Costa San Ramon Comment
  CAS-BOT-BC288880  Centromadia parryi subsp. congdonii David D. Keck 1933-11-2 2611 Contra Costa 2.7 miles N of Walnut Creek Comment
  UCD148253  Centromadia pungens Robert E. Preston 2013-6-21 2915 Contra Costa 3.5 mi SW of Byron. 72 Comment
  CAS-BOT-BC279205  Centromadia pungens subsp. pungens John Thomas Howell 1930-9-28 5489 Contra Costa 2 miles from Concord on road to Walnut Creek 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
  UC473441  Centromadia pungens subsp. pungens John Thomas Howell 1930-9-28 5489 Contra Costa 2 mi from Concord (on road to Walnut Creek) 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
  UC2028506  Centromadia pungens subsp. pungens Barbara Ertter with Mary Bowerman, Lisa Schultheis 1998-8-21 16406 Contra Costa North side Shell Ridge Open Space west of Mount Diablo, near pond at Wiget Lane entrance Comment
  UC1178029  Centunculus minimus Herbert L. Mason 1955-7-14 14632 a Contra Costa 1/2 mi e of Antioch Bridge 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
  UC1948960  Cerastium glomeratum William J. Ferlatte, L. Maynard Moe 1970-4-27 1233 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC1618283  Ceratophyllum demersum Barbara Ertter, Lynne Hosley 1991-9-22 10823 Contra Costa in hills sw of Lafayette (Lafayette Reservoir, at e end of dam); Lafayette Reservoir 137 Comment
  CAS-BOT-BC137007  Cercocarpus betuloides var. betuloides H. L. Dale 1927-3-1 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC137008  Cercocarpus betuloides var. betuloides L. R. Abrams 1910-10-8 4355 Contra Costa Mt. Diablo Summit 1158 Comment
  UC34798  Chaenactis glabriuscula var. glabriuscula W. C. Blasdale 1893-5-13 Contra Costa Antioch Comment
  UC34799  Chaenactis glabriuscula var. glabriuscula J. Burtt Davy 1895-4-7 874 Contra Costa Antioch Comment
  UCSB23747  Chamaesyce maculata Olson, Glen 1968-7-15 Contra Costa North side of Saint Mary's Road, 0.4 mile east of its junction with Moraga Rd. 91 Comment
  JEPS111799  Chenopodium murale D. G. Kelch 2005-3-13 05 .46 Contra Costa Crockett - weedy area under Zampa Bridge 4 Comment
  CDA9490  Chenopodium rubrum D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 07 .213-B Contra Costa Byron Airport. Comment
  UCR13095  Chlorogalum pomeridianum Robin Maetche, Geoffrey Matthews 1971-7-4 s.n. Contra Costa 1 mi below North [Gate Road] entrance to Mt. Diablo State Park, Concord 427 Comment
  UC691956  Chlorogalum pomeridianum var. pomeridianum Mary L. Bowerman 1930-6-5 239 Contra Costa North Road 2.9 mi from North Gate Mount Diablo; Mount Diablo 243 Comment
  CAS-BOT-BC252680  Chorizanthe membranacea Mary L. Bowerman 1938-5-28 3636 Contra Costa North Road 4.7 miles from North Gate, Mount Diablo 411 Comment
  CAS-BOT-BC30111  Chrysolepis chrysophylla var. minor H. E. Mc. Minn 1922-5-30 31 Contra Costa Moraga ridge Comment
  JEPS46617  Chrysolepis chrysophylla var. minor W. L. Jepson 1919-1-25 8210 Contra Costa Moraga Ridge Comment
  OBI3313  Chrysolepis chrysophylla var. minor Neil Havlik 1969-9-1 518 Contra Costa Along the Huckleberry Trail aobut 1/2 mi from Skyline Blvd, Oakland HIlls 396 Comment
  UCD110095  Chrysolepis chrysophylla var. minor Beecher Crampton 1957-11-20 4652 Contra Costa Alameda County line. Between Round and Redwood Regional Parks, Berkeley Hills. Comment
  JEPS89253  Cicendia quadrangularis J. B. Davy 1900-3-24 6516 Contra Costa Pt. Richmond Comment
  UC20919  Cicuta maculata var. bolanderi Jos. Burtt Davy 1900-6-7 6668 Contra Costa near Martinez Comment
  UC20920  Cicuta maculata var. bolanderi Jos. Burtt Davy 1900-6-7 6668 Contra Costa near Martinez Comment
  UCD127262  Cicuta maculata var. bolanderi Walter Knight; Irja Knight et al. 1978-9-5 3244 Contra Costa Browns Island. Comment
  CAS-BOT-BC284424  Cirsium brevistylum Alice Eastwood 1931-5-30 18618 Contra Costa Oak Spring Comment
  UC691379  Cirsium cymosum var. cymosum Mary L. Bowerman 1942-6-1 3848 Contra Costa se of Rock City 502 Comment
  UC691380  Cirsium cymosum var. cymosum Mary L. Bowerman June 1942 3848 Contra Costa South Road se of Rock City 502 Comment
  POM352184  Cirsium occidentale var. venustum B. C. Templeton 1962-6-10 s.n. Contra Costa 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
  UC691386  Cirsium vulgare Mary L. Bowerman 1932-11-19 1659 Contra Costa Lower Grapevine Spring Mount Diablo, Lower Grapevine Spring Comment
  UCD159457  Cirsium vulgare D. S. Park; K. Yeo 2010-8-7 211 Contra Costa Mt. Wanda hiking trail entrance. Under overpass. 85 Comment
  UCSC006991  Clarkia Randall Morgan 1988-4-29 1150 Contra Costa NW slope of Turn Peaks, Mt. Diablo Comment
  JEPS111563  Clarkia affinis A. G. Murdock 2004-5-28 273 Contra Costa Pinole Peak 405 Comment
  JEPS78818  Clarkia affinis Edward Lee 1936-5-24 2158 Contra Costa about 2 mi se Curry Canyon; Morgan Territory, Marsh Creek Comment
  UC692492  Clarkia affinis Mary L. Bowerman 1933-4-26 1925 Contra Costa ese North Peak (North Peak Ridge, s face); Mount Diablo 609 Comment
  UC692501  Clarkia affinis Mary L. Bowerman 1933-5-18 2123 Contra Costa Blackberry Spring Mount Diablo Comment
  UC2028321  Clarkia affinis Barbara Ertter, Susan D'Alcamo 1998-6-12 16155 Contra Costa North Gate Road on west flank of Mount Diablo near Buckle Point. Comment
  UC2070450  Clarkia biloba Barbara Ertter 2002-6-22 17825 Contra Costa Donner Basin on north side of Mount Diablo, Falls Loop Trail south of Wild Oat Canyon. Comment
  JEPS111566  Clarkia biloba subsp. biloba D. G. Kelch 2003-8-13 03 .124 Contra Costa Vaca Canyon Locally common herb to 20 cm on n facing road cuts 165 Comment
  CAS-BOT-BC163609  Clarkia biloba subsp. biloba Mary L. Bowerman 1935-6-15 3139 Contra Costa Eagle Point ridge below Ransom Point 822 Comment
  CAS-BOT-BC163610  Clarkia biloba subsp. biloba Mary L. Bowerman 1930-6-22 355 Contra Costa Mitchell Canyon Comment
  RSA0059990  Clarkia biloba subsp. biloba C. L. Hitchcock 1928-6-5 13 Contra Costa Between Point Costa and Martinez, 1.5 mile from Port Costa. 40 Comment
  UC2062660  Clarkia concinna Barbara Ertter with John Ginochio 2002-6-1 17939 Contra Costa Ginochio Ranch in Arroyo del Cerro NW side of Mount Diablo, connector road between Government Road and Olofson Homestead. Comment
  UC2028989  Clarkia concinna subsp. concinna Barbara Ertter 2000-5-14 17005 Contra Costa Donner Canyon on north side of Mount Diablo, serpentinitic sites in general area of junction of Donner Canyon, Cardinet Oaks, and Meridian Ridge roads, edged by Arctostaphylos glauca et al. Comment
  UC1818899  Clarkia gracilis subsp. gracilis Barbara Ertter, Mary Bowerman 1994-6-19 12853 a Contra Costa Mt. Diablo State Park east of Walnut Creek; scrub oak thicket north of road, north of lower summit parking lot, next to drainage on north facing slope. Comment
  CAS-BOT-BC163667  Clarkia purpurea subsp. quadrivulnera L. R. Abrams 1916-6-30 5712 Contra Costa Mt. Diablo near lake Comment
  CAS-BOT-BC163672  Clarkia purpurea subsp. quadrivulnera John Thomas Howell 1931-5-12 6483 Contra Costa Mt. Diablo Comment
  UC692488  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1933-6-7 2252 Contra Costa saddle between Meridian Peak and North Peak; Mount Diablo Comment
  CAS-BOT-BC163666  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1931-4-25 760 Contra Costa Mount Diablo. Above junction of North and South Roads Comment
  CAS-BOT-BC163668  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1931-5-13 844 Contra Costa Mount Diablo. Pine Canyon floor one mile above the Sulphur Spring Comment
  CAS-BOT-BC163674  Clarkia purpurea subsp. quadrivulnera H. L. Mason 1928-4-26 4379 Contra Costa Around Berkeley and Oakland Comment
  RSA0059918  Clarkia purpurea subsp. quadrivulnera Glenn A. Gorelick 1967-5-20 s.n. Contra Costa Russelman Park, Mt. Diablo State Park Comment
  UC1279898  Clarkia rubicunda Peter H. Raven 1957-6-20 10950 Contra Costa e end Tilden Regional Park (hillside at Inspiration Point) Comment
  UC1481547  Clarkia rubicunda Neil Havlik 1980-6-6 942 Contra Costa Several colonies on Brooks Island Comment
  RSA113596  Clarkia rubicunda Peter H. Raven 1957-7-5 11050 Contra Costa Northeast side of the hills at Point Richmond 107 Comment
  RSA113670  Clarkia rubicunda Peter H. Raven 1957-6-20 10950 Contra Costa Inspiration Point, east end of Tilden Regional Park 366 Comment
  CAS-BOT-BC165449  Clarkia unguiculata L. R. Abrams 1916-6-30 5702 Contra Costa Mt. Diablo near lake Comment
  CDA38067  Clarkia unguiculata A. G. Murdock 2003-6-2 81 Contra Costa Carquinez Strait Region; Franklin Canyon - McHarry Ranch Rd. Comment
  JEPS75481  Clarkia unguiculata P. F. Yorks 1974-6-16 175 Contra Costa 1.9 km s Bear Creek Road (on Hampton Road, n of Briones Reservoir); Hampton Road Natural Reserve Comment
  RSA458865  Clarkia unguiculata Thekla Mohr 1917-07 3249 Contra Costa Mount Diablo Comment
  CAS-BOT-BC165453  Clarkia unguiculata John Thomas Howell 1931-5-12 6481 Contra Costa North side of Mt. Diablo Comment
  CDA33794  Claytonia exigua D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .111 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  CAS-BOT-BC439164  Claytonia exigua subsp. exigua Mary L. Bowerman 1932-3-12 1110 Contra Costa Mount Diablo. Alamo Canyon 350 Comment
  CHSC93813  Claytonia exigua subsp. exigua K. L. Chambers 1977-4-1 4266 Contra Costa Mt. Diablo. On trail to Deer Flat from the summit road, ca. 1/8 mile above Deer Flat. Comment
  UC1136707  Claytonia exigua subsp. exigua R. C. Wilson 1935-3-29 162 Contra Costa 1 mi w Deer Flat; Mt. Diablo Quad. 716 Comment
  UC56201  Claytonia exigua subsp. exigua H. M. Hall 1901-4-5 1759 Contra Costa Mt. Diablo; San Francisco Bay Region 1158 Comment
  UC634940  Claytonia exigua subsp. exigua H. L. Mason 1925-3-10 1296 Contra Costa higher slopes Mt. Diablo Comment
  UC692543  Claytonia exigua subsp. exigua Mary L. Bowerman 1933-4-15 1875 Contra Costa s of (canyon s, below spring) Arroyo del Cerro; Mount Diablo 76 Comment
  UC692550  Claytonia exigua subsp. exigua Mary L. Bowerman 1933-5-10 2065 Contra Costa ridge w Indian Ceremonial Spring; Mount Diablo 1005 Comment
  UC7853  Claytonia exigua subsp. exigua H. P. Chandler 1900-3-24 588 Contra Costa Briones Hills; Mt. Diablo Region Comment
  UC7885  Claytonia exigua subsp. exigua W. H. Brewer 1862-5-7 1056 Contra Costa Mount Diablo Comment
  CAS-BOT-BC439162  Claytonia exigua subsp. exigua Mary L. Bowerman 1933-4-15 1875 Contra Costa Mount Diablo. Canyon south of Arroyo del Cerro, about 250 feet below spring Comment
  UCD102390  Claytonia gypsophiloides Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. North Peak Road to North Peak. 880 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
  UC692653  Claytonia parviflora subsp. parviflora Mary L. Bowerman 1933-5-3 1967 Contra Costa Mountain Springs Canyon Mount Diablo (just below the deer trough (Pioneer Road)) Comment
  UC2028060  Claytonia parviflora var. parviflora Barbara Ertter, Tony Morosco 1998-4-12 16014 Contra Costa Mount Olympia on north side of Mount Diablo. Comment
  JEPS68970  Claytonia perfoliata subsp. perfoliata Edward Lee 1935-3-10 1304 Contra Costa Nortonville; s watershed of Kirker Creek Comment
  SEINET194968 Image available Claytonia perfoliata subsp. perfoliata A. A. Heller 1908-4-17 8909 Contra Costa Tracey. 10 Comment
  CAS-BOT-BC440079  Claytonia perfoliata subsp. perfoliata Alice Eastwood 1914-3-17 3772 Contra Costa Byron Springs Comment
  CAS-BOT-BC443654  Claytonia perfoliata subsp. perfoliata Peter H. Raven 1950-3-12 1429 Contra Costa Vaca Canyon 4.5 miles from Martinez 182 Comment
  UC105334  Clematis flammula N. Floy Bracelin 1941-8-10 1703 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC545776  Clematis lasiantha Annetta M. Carter 1935-6-1 874 Contra Costa n.w. slope of main peak Mt. Diablo 1005 Comment
  JEPS112470  Clinopodium douglasii D. G. Kelch 2005-5-1 05 .184 Contra Costa Crockett - Edwards Canyon 150 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
  UC691588  Collinsia heterophylla Mary L. Bowerman 1930-6-7 270 Contra Costa Mount Diablo, summit of Meridian Peak Meridian Peak; Mount Diablo, Meridian Peak Comment
  UC691656  Collinsia heterophylla Mary L. Bowerman 1933-5-17 2103 Contra Costa branch of Curry Canyon due s of Olafsons' barn, just n of first fork of canyon, Mount Diablo Curry Canyon; Mount Diablo, branch of Curry Canyon 289 Comment
  JEPS7324  Collinsia heterophylla Fred Shoemaker 1938-4-11 Contra Costa Marsh Creek Canyon Comment
  SEINET5544350  Collinsia sparsiflora H. S. Gentry 1931-1 48 Contra Costa Collected near Buckle Point, 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
  JEPS87900  Collinsia sparsiflora var. collina Barbara Ertter, Brad Olson 1992-4-13 10951 Contra Costa e of Curry Point (Mount Diablo State Park, Knobcone Point Road); Mount Diablo State Park, Knobcone Point Road 518 Comment
  UC1795634  Collinsia sparsiflora var. collina Barbara Ertter, Brad Olson 1992-4-13 10951 Contra Costa Mount Diablo State Park, Knobcone Point Road E of Curry Point 518 Comment
  UC691584  Collinsia sparsiflora var. collina Mary L. Bowerman 1932-3-12 1112 Contra Costa Alamo Canyon , Alamo Canyon (Mount Diablo) 365 Comment
  UCSB12513  Conium maculatum Grah, Nancy 1962-4-14 Contra Costa 0.1 mile on Tappan Lane morth of Tarry Lane, Orinda Comment
  UC1594168  Conyza bilbaoana Jerry Powell 1616 Contra Costa Antioch National Wildlife Refuge Contra Costa Comment
  UC1584663  Conyza canadensis Jerry Powell 1990-8-29 1586 Contra Costa Antioch National Wildlife Refuge Comment
  UC2027933  Conyza canadensis Barbara Ertter with Chris Thayer 1996-10-25 15383 Contra Costa West side of Mount Diablo, North Gate Road 3 road miles below Junction near Mineral Spring. Comment
  UC2027980  Conyza canadensis Barbara Ertter, Chris Thayer 1996-10-25 15391 Contra Costa Southwest flank of Mount Diablo, lower South Gate Road just inside park boundary. Comment
  JEPS84878  Cordylanthus mollis subsp. mollis Terry L. Palmisano August 1987 Contra Costa just w Hastings Slough; Concord Naval Weapons Station property Comment
  CAS-BOT-BC32965  Cordylanthus nidularius John Thomas Howell 1942-7-19 17044 Contra Costa NE of Deer Flat, Mt. Diablo Comment
  JEPS55940  Cordylanthus nidularius T. I. Chuang and L. R. Heckard, R. Bacigalupi 1968-6-27 6436 Contra Costa 3/4 mi ne of Deer Flat (ne flank of Bald Ridge, Mount Diablo); Mount Diablo, Bald Ridge 670 Comment
  RSA537699  Cordylanthus nidularius T. I. Chuang 1975-6-29 7517 Contra Costa Northeast of Deer Flat, Mount Diablo Comment
  JEPS6803  Cordylanthus pilosus subsp. pilosus W. L. Jepson 1894-10-1 21337 Contra Costa Moraga Valley Comment
  CAS-BOT-BC287169  Coreopsis stillmanii Brandegee No date on label s.n. Contra Costa Mt Diablo Comment
  CAS-BOT-BC209751  Cornus glabrata Mary L. Bowerman 1935-6-21 3150 Contra Costa Mount Diablo. Arroyo del Cerro, east fork 243 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
  UC2027731  Cotula australis Barbara Ertter 1997-2-16 15464 Contra Costa Shell Ridge Open Space on west flank of Mount Diablo, roadbed east of and above Deer Lake. Comment
  UC2032849  Cotula coronopifolia Doran, Andrew Scott 2012-3-20 720 Contra Costa Northeast part of Brooks Island, on trail to beach along spit. Comment
  UC2028185  Crassula aquatica Barbara Ertter 1998-5-3 16059 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. Comment
  CHSC21629  Crassula connata Willis Ball 1975-4-19 521 Contra Costa In area #8 ca. 450 yds s of main parking lot ca. 750 yds w of Conta Loma Blvd. Contra Costa Regional Park. 76 Comment
  UC1561257  Crassula connata Barbara Ertter with John Little 1989-4-2 8110 Contra Costa s. side Hillside Park in El Cerrito Comment
  CAS-BOT-BC427673  Crassula connata Ernest C. Twisselmann 1968-4-4 14071 Contra Costa Botanical Garden, Tilden Regional Park 286 Comment
  UC1328150  Crassula connata var. subsimplex Olive Dyer 1937-3-26 232 Contra Costa meadow n. Bald Peak (Wildcat Canyon); Wildcat Canyon Comment
  UC692556  Crassula connata var. subsimplex Mary L. Bowerman 1931-3-21 586 Contra Costa Sycamore Canyon Mt. Diablo, Sycamore Canyon 335 Comment
  JEPS25357  Crassula solieri Rimo Bacigalupi with Paul C. Hutchison and John Weiler 1959-3-19 6968 Contra Costa 1 mi. s.e. Byron (fields e. of <Bryon> rd.) 6 Comment
  UC1795806  Crassula tillaea Barbara Ertter, Lisa Schultheis 1995-4-27 14018 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; head of west facing scrub-filled draw (east of golf-course). 182 Comment
  CDA37402  Cressa truxillensis D. G. Kelch, Mike Perlmutter 2011-9-23 11 .757 Contra Costa Entry to Discovery Bay. Comment
  JEPS31075  Crocanthemum scoparium var. vulgare J. B. Davy 1895-1 Contra Costa Moraga Pass Oakland Hills 182 Comment
  JEPS79012  Croton californicus Edward Lee with Annetta Carter 1935-10-17 1626 Contra Costa Antioch; dunes Comment
  UC447211  Croton californicus C. F. Baker 1903-4-25 2825 Contra Costa Antioch Comment
  RSA720790  Crypsis schoenoides Barbara Ertter, Mary L. Bowerman, Lisa Schultheis, Kevin Hintsa 1995-10-22 14532 Contra Costa Three Spring Trail on northeast side of Mt. Diablo, south of crest of Marsh Creek Rd. Comment
  CAS-BOT-BC190081  Crypsis schoenoides R. E. Frenkel 1964-9-17 864 Contra Costa On Marsh Creek Road at shore of Marsh-Kellogg Creek Reservoir. 45 Comment
  JEPS108226  Cryptantha decipiens David Gowen 2005-5-6 282 Contra Costa Mt. Diablo State Park. Rocky outcrops on the south side of North Peak. 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
  UC691401  Cryptantha flaccida Mary L. Bowerman 1932-4-16 1348 a Contra Costa Eagle Point Mount Diablo Comment
  UC691342  Cryptantha microstachys Mary L. Bowerman 1931-4-4 633 Contra Costa 2 mi (rd) from Mount Diablo w entrance (= North Gate); Mount Diablo Comment
  POM64396  Cryptantha microstachys C. F. Baker 1903-4-28 2810 Contra Costa Mitchell s Canyon, Mt. Diablo. Comment
  RSA0068479  Cryptantha microstachys Katie Gallagher, Nick Jensen 2014-4-26 199 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  UC762463  Cryptantha microstachys R. F. Hoover 1938-5-4 3349 Contra Costa e of Tassajero Creek Comment
  SEINET10456545  Cryptantha muricata John T. Middleton 1936-4-6 Middleton UMO 29969 Contra Costa Brentwood. Comment
  UC691344  Cryptantha torreyana Mary L. Bowerman 1933-6-3 2245 Contra Costa on area that was burned in 1931. Exposure north Comment
  OBI14811  Cuscuta californica Robert F. Hoover 1969-8-29 11565 Contra Costa Raymond Rd and Ames St, Livermore Valley Comment
  CDA20771  Cuscuta japonica J. Deviney 2006-6-7 PDR 1373527 Contra Costa San Francisco Bay Area; El Cerrito Creek banks at S end of Carlsen Blvd., El Cerrito. Crossing Alameda county line into Albany. Comment
Read comments Apr 29 2013
  UC562677  Cuscuta subinclusa Joseph P. Tracy 1932-9-10 10789 Contra Costa Franklin Canyon 152 Comment
  UC691365  Cuscuta subinclusa Mary L. Bowerman 1932-9-3 1536 Contra Costa Muir Area (Burn 1931) Mount Diablo Comment
  UC691857  Cuscuta subinclusa Mary L. Bowerman 1933-9-3 2418 Contra Costa s of Meridian-North Peak saddle; Mount Diablo Comment
  UC691907  Cuscuta subinclusa Mary L. Bowerman 1933-9-9 2428 Contra Costa e of Frog Pond; Mount Diablo, Rhine Canyon 457 Comment
  UC23280  Cuscuta subinclusa Bolander 1863-1 2436 Contra Costa Moraga Valley 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
  JEPS99953  Cynara cardunculus A. Langston 2003-7-17 AL 67 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD144310  Cynara cardunculus G. F. Hrusa; D. Crowe 1998-5-8 14357 Contra Costa Sacramento-San Joaquin River Delta. Dow Chemical property at Pittsburg. 5 Comment
  UCD33766  Cynara cardunculus Beecher Crampton 1972-11-21 8888 Contra Costa 2 miles east of Crockett. Comment
  CAS-BOT-BC299742  Cynara cardunculus John Thomas Howell 1953-3-15 28922 Contra Costa Danville Comment
  UCSB24742  Cynoglossum grande Rieser, R. 1966-4-2 Contra Costa 100 ft. north of Eagles Point, Sleepy Hollow, Orinda 396 Comment
  CDA43393  Cynosurus echinatus D. G. Kelch 2012-5-27 12 .074 Contra Costa Carquinez Strait Region; Pinole Valley Park. Comment
  JEPS100020  Cynosurus echinatus S. O'Neil 2003-5-30 SEO 36 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS99550  Cynosurus echinatus Mary Bowerman 1976-6-24 Contra Costa Mount Diablo, inner Black Hills just west of meridian and south of crest. Comment
  CAS-BOT-BC114613  Cyperus eragrostis James McMurphy 1908-10-18 s.n. Contra Costa Antioch Comment
  UC698543  Cyperus eragrostis Thomas Morley 1940-11-21 84 Contra Costa at upper end where Redwood Creek enters the lake San Leandro Lake 129 Comment
  SEINET10869432  Cyperus eragrostis Thomas Morley 1940-12-3 Morley 90 Contra Costa Coarse perennial one to three feet high, in dense masses, associated with Salix, typha, polypogon in fine rich moist soil, banks at upper end of san Leandro lake near mouth of redwood creek 130 Comment
  SEINET11752107  Cyperus eragrostis Unknown 1940-1 90 Contra Costa banks at upper end of San Leandro Lake near mouth of Redwood Creek 130 Comment
  SD45084  Cytisus canariensis W. W. Jones 1927-4-5 Contra Costa Crockett Comment
Read comments Jul 11 2010
  CDA23109  Cytisus scoparius D. G. Kelch, D. A. Weinstein 2008-4-25 8 .08 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
Read comments Jan 7 2016
  JEPS107132  Cytisus scoparius Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14678 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay, northeast corner of area. Comment
  UC1795882  Danthonia californica var. californica Barbara Ertter, Brad Olson 1994-5-7 12754 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  POM300649  Datisca glomerata Mary L. Bowerman 1933-6-21 2336 Contra Costa Donner Canyon. 335 Comment
  JEPS102890  Datura wrightii Barbara Ertter with Tony Morosco 1998-10-18 16435 Contra Costa Lime Ridge Recreaton Area, NE corner Mount Diablo 182 Comment
  JEPS111707  Deinandra corymbosa D. G. Kelch 2004-5-7 04 .179 Contra Costa Ca ada del Cierbo Ca ada del Cierbo 40 Comment
  CAS-BOT-BC294016  Deinandra kelloggii Alice Eastwood 1921-4-18 10300 Contra Costa Antioch Comment
  CAS-BOT-BC294017  Deinandra kelloggii Peter Rubtzoff 1951-10-7 s.n. Contra Costa Along lower San Joaquin River, east of Antioch Comment
  CAS-BOT-BC294018  Deinandra kelloggii Mrs. Curran 1883-5-1 s.n. Contra Costa Antioch Comment
  UC34625  Deinandra kelloggii Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  UC88925  Deinandra kelloggii K. Brandegee 1889-5-1 Contra Costa Antioch Comment
  CAS-BOT-BC294021  Deinandra kelloggii John Thomas Howell 1929-7-20 4329 Contra Costa 2 miles s. of Oakley Comment
  CAS-BOT-BC291806  Deinandra lobbii H. M. Hall 1930-6-18 12792 Contra Costa Somersville, hills south of Pittsburg Comment
  CAS-BOT-BC291808  Deinandra lobbii H. M. Hall 1930-6-18 12792 Contra Costa Somerville [Somersville], hills south of Pittsburg Comment
  UC2029061  Deinandra lobbii Barbara Ertter with Delia Taylor 2003-6-22 18225 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, ridge south of Arata Overlook Trail NE of park headquarters east of Somerville Road. Comment
  JEPS111750  Delairea odorata D. G. Kelch 2005-4-15 05 .140 Contra Costa Rodeo Creek EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump) 220 Comment
  UCD95636  Delphinium californicum P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CAS-BOT-BC9612  Delphinium californicum John Thomas Howell 1950-7-5 26631 Contra Costa Juniper Camp, Mt. Diablo Comment
  SEINET5546958  Delphinium californicum H. S. Gentry 1931-1 46 Contra Costa Collected near Buckle Point, Mount Diablo. Comment
  SEINET12087146  Delphinium decorum J. T. Howell 1931-1 5758 Contra Costa Shaley slope in chaparral, 7 mi E of Clayton, Mt. Diablo region Comment
  CAS-BOT-BC10309  Delphinium hesperium Mrs. E. C. Wright 1917-6-1 s.n. Contra Costa Mt. Diablo Comment
  UC13984  Delphinium hesperium subsp. pallescens Chesnut and Drew 1889-4-17 Contra Costa Antioch Comment
  UC912567  Delphinium hesperium subsp. pallescens H. L. Mason 1928-4-29 4423 Contra Costa s slope of mt Mount Diablo, Sycamore Canyon Comment
  CAS-BOT-BC10009  Delphinium hesperium subsp. pallescens R. D. Stone 1983-5-17 510 Contra Costa Extreme northern end of the Jackson Ranch, near Alameda County line ca. 9 mi. NE of Livermore and 1 mi. NNE of Brushy 182 Comment
  UC691950  Delphinium nudicaule Mary L. Bowerman 1933-6-14 2284 Contra Costa bottom of second gully w north spur; Mount Diablo, Inner Black Hills Comment
  RSA398660  Delphinium nudicaule John Doyen, Glenn A. Gorelick 1966-4-22 s.n. Contra Costa Russelman Park, Mt. Diablo State Park. 305 Comment
  UC9189  Delphinium parryi subsp. parryi J. Burtt Davy 1895-4-8 975 Contra Costa foothills Antioch Comment
  UC1818933  Delphinium patens Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14595 Contra Costa Sycamore Spring Trail off Prospectors Gap Rd., east side Mt. Diablo. 640 Comment
  CAS-BOT-BC116455  Delphinium patens subsp. patens H. L. Mason 1925-3-10 1301 Contra Costa Mount Diablo Comment
  UC692138  Delphinium patens subsp. patens Mary L. Bowerman 1931-3-21 584 Contra Costa w-facing slope Mount Diablo, Sycamore Canyon Comment
  UC9148  Delphinium patens subsp. patens J. Burtt Davy 1896-2-29 1263 Contra Costa Mitchell Canyon, Mt. Diablo Comment
  CAS-BOT-BC116461  Delphinium patens subsp. patens J. T. Howell 1931-3-10 5758 Contra Costa 7 miles east of Clayton, Mt. Diablo region Comment
  HSC47893  Delphinium recurvatum Carl Epling, G. Miles 1945-3-23 542 Contra Costa 5 miles west of Tracy-Byron road on road to Byron Hot Springs Comment
Read comments Aug 17 2011
  LA93067  Delphinium recurvatum Lewis; 1963-4-11 1337 Contra Costa Byron Hot Springs Rd Comment
  RSA624911  Delphinium recurvatum John A. Churchill 1974-4-15 s.n. Contra Costa Between Route K4 and railroad at Holey Road Comment
  JEPS62388  Delphinium variegatum W. L. Jepson 1922-5-23 9658 Contra Costa Mt. Diablo Comment
  UC2028474  Deschampsia cespitosa subsp. holciformis Barbara Ertter with Richard K. Brummitt 1998-5-6 16097 Contra Costa Antioch Marina, edge of brackish marsh 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
  CDA31667  Deschampsia danthonioides D. G. Kelch, A. G. Murdock 2005-3-25 05 .-095 Contra Costa Carquinez Strait Region; Fernandez Ranch. West of Christie Road, south of I-4 (behind golf course) and north of Pinole Peak. Comment
  UC1024732  Deschampsia danthonioides Leo Whitney 1935-4-21 3057 Contra Costa 4 mi. e. Corral Hollow Comment
  UC692393  Deschampsia danthonioides Mary L. Bowerman 1935-6-28 3164 Contra Costa s. side Meridian Peak (Mt. Diablo); Mt. Diablo 548 Comment
  UCD62786  Deschampsia danthonioides Beecher Crampton 1968-3-27 8235 Contra Costa SE corner, ca. 3.5 miles south of Byron. Comment
  CAS-BOT-BC192674  Deschampsia danthonioides Bolander 6072 Contra Costa Unspecified Comment
  CHSC118029  Deschampsia elongata Barbara Ertter 1999-6-12 16710 Contra Costa Black Hawk Ridge road on south side of Mount Diablo, road crossing at confluence of NE and E forks of Sycamore Creek. 396 Comment
  UC521723  Dicentra chrysantha Joseph Andorfer Ewan 1933-10-15 8030 Contra Costa s slope Mt. Diablo 1066 Comment
  UC692101  Dicentra chrysantha Mary L. Bowerman 1932-9-3 1529 Contra Costa Muir Area; Mount Diablo Comment
  RSA128442  Dicentra chrysantha Joanne Taylor 1941-7-18 19 Contra Costa Nortonville. 244 Comment
  JEPS75528  Dichelostemma capitatum P. F. Yorks 1976-3-7 116 Contra Costa ca 2 km s Bear Creek Road (on Hampton Road, in Hampton Road Natural Reserve, n of Briones Reservoir); Hampton Road Natural Reserve 200 Comment
  UC1133877  Dichelostemma capitatum C. M. Belshaw 1936-5-8 2060 Contra Costa se slope Mt. Diablo; Mt. Diablo Quad. 990 Comment
  CAS-BOT-BC500092  Dichelostemma capitatum Jeanne R. Janish; Edward Janish 1948-3-23 244 Contra Costa Open hillside of Stony Gorge Dam, Elk Creek. Comment
  UCD139417  Dichelostemma capitatum subsp. capitatum P. B. Kennedy 1914-3-15 4631 Contra Costa Sunset Cemetery. Comment
  CAS-BOT-BC500922  Dichelostemma volubile W. R. Dudley 1893-1-1 s.n. Contra Costa Mount Diablo Comment
  CAS-BOT-BC150331  Diplacus aurantiacus E. E. Stanford 1930-5-24 1514 Contra Costa Marsh Creek Canyon Comment
  CAS-BOT-BC121845  Dirca occidentalis P. H. Raven 1956-4-8 8986 Contra Costa About 0.5 miles NE of Grizzly Peak 396 Comment
  CDA37269  Dirca occidentalis D. G. Kelch 2010-1-17 10 .31-B Contra Costa Carquinez Strait Region; Upper North Fork of Rodeo Creek, immediately west of Cummings Skyway. Comment
  JEPS47160  Dirca occidentalis Martha G. Watson 1923-1 18 Contra Costa Glory Hole Oakland Hills Comment
  UC3564  Disporum hookeri unknown 1862-5-16 1099 Contra Costa s of Mount Diablo Comment
  UC692001  Disporum hookeri Mary L. Bowerman 1931-3-22 606 Contra Costa Mount Diablo, e fork Alamo Canyon Alamo Canyon; Mount Diablo, Alamo Canyon Comment
  POM300632  Disporum hookeri var. hookeri Mary L. Bowerman 1931-3-22 606 Contra Costa Alamo Canyon, east fork. Comment
  CAS-BOT-BC208656  Distichlis spicata John Thomas Howell; Gordon H. True 1972-6-29 48925 Contra Costa Byron Hot Springs Road southeast of Byron Comment
  JEPS102900  Distichlis spicata Barbara Ertter, Chris Thayer 1996-10-25 15369 Contra Costa North Gate Road Mount Diablo 121 Comment
  UC2029148  Distichlis spicata Barbara Ertter with Dan Norris 1999-11-14 16851 Contra Costa Black Diamond Mines Regional Preserve, south of parking area for Somersville townsite. Comment
  CDA37339  Dittrichia graveolens D. G. Kelch 2010-10-31 10 .444 Contra Costa Valley north of Alhambra Valley Rd., south of Pinole Peak, east of Hercules. Comment
  CHSC21632  Dodecatheon hendersonii Willis Ball 1975-3-9 493 Contra Costa Contra Loma Regional Park. In area #8. On n facing slope near top of hill ca. 550 yds sw of main parking lot ca. 850 yds w of Contra Loma Blvd. 149 Comment
  JEPS99973  Dodecatheon hendersonii S. O'Neil 2003-3-11 SEO 7 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1123275  Dodecatheon hendersonii R. C. Wilson 1935-2-27 114 Contra Costa Somersville Mt. Diablo Quad. Comment
  UC673401  Dodecatheon hendersonii Herbert L. Mason 1929-3-15 5047 Contra Costa s Nortonville; s of Nortonville Comment
  UC766292  Dodecatheon hendersonii R. F. Hoover 1938-2-21 2758 Contra Costa Point Richmond Comment
  JEPS48496  Dodecatheon hendersonii Elsa Kraeger 1926-3-7 Contra Costa beyond tollgate on rd to Mt. Diablo; beyond tollgate on rd to Mt. Diablo Comment
  UCSB24739  Dodecatheon hendersonii Rieser, R. 1966-4-4 Contra Costa On Tarry Lane, 8 miles from intersection of Sleepy Hollow Lane, Orinda. 152 Comment
  JEPS5033  Downingia insignis Ira L. Wiggins 1930-4-17 4570 Contra Costa 0.25 mi s Byron Comment
  UC1026379  Downingia insignis John Thomas Howell 1953-4-26 28935 Contra Costa between Byron and Byron Hot Springs Comment
  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
  RSA166380  Downingia ornatissima var. eximia John H. Thomas 1953-4-25 3003 Contra Costa Empire Mine Road near Antioch Golf Course. South of Antioch. Comment
  JEPS14440  Downingia pulchella W. L. Jepson May 23 1891-May 24 1891 21212 Contra Costa Mt. Diablo Comment
  UC1192049  Downingia pulchella F. Chisaki, S. G. Smith, and Peter M. Ray 1951-4-14 1980 Contra Costa 7 mi n Walnut Creek (e of Highway 21, 0.2 s of intersection with Highway 4) Comment
  JEPS44306  Drymocallis glandulosa var. wrangelliana W. L. Jepson 1923-6-10 9995 Contra Costa Upper Marsh Creek Mt. Diablo, Upper Marsh Creek Comment
  UC691098  Drymocallis glandulosa var. wrangelliana Mary L. Bowerman 1933-5-22 2172 Contra Costa on north face w 1970 (Mount Diablo); Inner Black Hills, Mount Diablo Comment
  JEPS111938  Dryopteris arguta D. G. Kelch 2004-9-2 04 .340 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Martinez (Ozol) CA East of Ozol 25 Comment
  JEPS60041  Dryopteris arguta W. L. Jepson 1923-4-22 9869 Contra Costa Mt Diablo Comment
  CAS-BOT-BC428219  Dudleya cymosa subsp. paniculata Alice Eastwood 1915-5-30 4523 Contra Costa Mount Diablo Comment
  UC2028468  Echinochloa colona Barbara Ertter 1997-8-24 15776 Contra Costa Mount Diablo, Summit Road just above Junction Station Comment
  CAS-BOT-BC197108  Echinochloa crus-galli John Thomas Howell; Gordon H. True 1972-6-29 48942 Contra Costa Along Byron Hot Springs Road where water has stood, southeast of Byron Comment
  CAS-BOT-BC197106  Echinochloa crus-galli R. E. Frenkel 1963-8-23 274 Contra Costa On the lot in front of Market Plaza Center on Highway 21, Alamo 79 Comment
  CAS-BOT-BC197107  Echinochloa crus-galli D. E. Breedlove 1970-9-3 17685 Contra Costa On Sierra Vista Way. Lafayette Comment
  RSA0029360  Echinochloa crus-galli Barbara Ertter 1996-11-24 15421 Contra Costa West side of Mount Diablo, upstream from Pine Pond along Stage Road in Pine Canyon, floodplain at junction with Dusty Road. Comment
  SEINET245836 Image available Echinochloa crus-galli Beecher Crampton 1965-9-29 7527 Contra Costa 2 miles south of Brentwood, jct. Of Walnut ave. and Marsh Creek rd., Comment
  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
  UCD60948  Echinochloa crus-pavonis Beecher Crampton 1959-9-3 5451 Contra Costa 2 miles north of Orinda, Bear Creek, East Bay Munic. Distr. Project. Comment
  SBBG21399  Ehrendorferia chrysantha V. Haraden 1941-7-18 14 Contra Costa near Nortonville 121 Comment
  JEPS99522  Elatine brachysperma Mary L. Bowerman 1975-9-14 Contra Costa Mount Diablo, Hidden Pond. Comment
  UC691971  Eleocharis macrostachya Mary L. Bowerman 1938-5-28 3645 Contra Costa Maple Spring, on upper margin, especially in the NW corner Mount Diablo Comment
  RSA108326  Elymus X gouldii Frank W. Gould 1941-5-8 1291 Contra Costa near Bay at Winehaven (near r Richmond); Altitude near sea level Comment
  UC2028475  Elymus X hansenii Barbara Ertter with Richard K. Brummitt 1998-5-6 16100 Contra Costa Point San Pablo west of Richmond, crest of road to yacht harbor Comment
  UC2070620  Elymus caput-medusae Barbara Ertter with John Ginochio 2002-6-1 17946 Contra Costa Castle Rock Park at mouth of Pine Canyon, NW foot of Mount Diablo. Comment
  UC2028395  Elymus elymoides var. elymoides Barbara Ertter with Richard K. Brummitt 1998-5-13 16141 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, south leg of Loughler Loop Trail just west of pass over central ridge, NW-facing slope Comment
  UC691202  Elymus glaucus Mary L. Bowerman 1933-5-21 2154 Contra Costa n-facing slope below Grape Spring (s from Curry Canyon); Mount Diablo Comment
  UCD62270  Elymus glaucus J. B. Davy 1898-6-6 4242 Contra Costa Berkeley Hills. Comment
  CAS-BOT-BC203433  Elymus glaucus subsp. glaucus Mary L. Bowerman 1935-5-3 2964 Contra Costa Mount Diablo. Sloan Road 487 Comment
  UCD62515  Elymus multisetus Beecher Crampton 1956-5-14 3386 Contra Costa Between the old coal mining towns of Somersville and Nortonville, 6.7 miles southwest of Antioch. Comment
  JEPS68374  Elymus trachycaulus W. L. Jepson 1918-6-5 7602 Contra Costa Donner Canyon Vicinity of San Francisco Bay, Mt. Diablo 533 Comment
  UC1819004  Elymus trachycaulus subsp. trachycaulus Barbara Ertter, Mary L. Bowerman 1994-6-19 12855 a Contra Costa Mt. Diablo State Park east of Walnut Creek; scrub oak thicket north of road, north of lower summit parking lot, next to drainage on north facing slope. Comment
  UC1819005  Elymus trachycaulus subsp. trachycaulus Barbara Ertter, Mary L. Bowerman 1994-6-19 12851 a Contra Costa Mt. Diablo State Park east of Walnut Creek; lower Summit parking lot, opening in chaparral near radio tower, ca 3600'. Comment
  UC1618362  Elytrigia intermedia subsp. intermedia Barbara Ertter with Lynne Hosley and Sid Cowles 1992-6-7 11084 Contra Costa along raod to quarry e of Round Top (Sibley Volcanic Regional Preserve in Oakland Hills); Oakland Hills, Sibley Volcanic Regional Preserve Comment
  JEPS108314  Emmenanthe penduliflora David Gowen 2005-5-24 389 Contra Costa Mt. Diablo. Near summit of knoll west of Mt. Zion. Comment
  JEPS78615  Epilobium brachycarpum Walter Knight, L. R. Heckard, and Bert Johnson 1978-9-28 3296 Contra Costa South Landing Browns Island Comment
  CAS-BOT-BC166162  Epilobium canum subsp. canum L. R. Abrams 1910-10-8 4342 Contra Costa Mt. Diablo 1158 Comment
  UC692453  Epilobium canum subsp. canum Mary L. Bowerman 1930-8-24 430 Contra Costa Mitchell Canyon Mount Diablo (at lower edge of chaparral where it extends nearly to streambed) Comment
  CAS-BOT-BC166164  Epilobium canum subsp. canum Peter Rubtzoff 1951-10-7 814 Contra Costa 1 to 2 mi. southwest of Moraga, near the road Comment
  CDA38079  Epilobium ciliatum D. G. Kelch 2003-8-13 3 .142 Contra Costa Carquinez Strait; Pinole Creek. Comment
  JEPS22431  Epilobium cleistogamum Mary K. Curran May 1886 Contra Costa near Antioch Comment
  UC635735  Epilobium cleistogamum M. K. Curran May 1886 Contra Costa Antioch Comment
  JEPS99501  Epilobium minutum Mary L. Bowerman 1978-5-14 Contra Costa Mount Diablo. The old wagon rd. mines trail on E side of Eagle Peak. Comment
  UC692132  Equisetum laevigatum Mary L. Bowerman 1931-10-31 1063 Contra Costa South Rd. in bend of rd. a little below junction Mt. Diablo 853 Comment
  UC692134  Equisetum laevigatum Mary L. Bowerman 1931-5-16 864 Contra Costa Lower Silver Spring; Mt. Diablo 853 Comment
  JEPS116791  Eriastrum abramsii David Gowen 2006-6-14 609 Contra Costa Morgan Territory Regional Park; ; ; At the NW end of Eagle Trail. Comment
  CAS-BOT-BC287536  Ericameria linearifolia A. Kellogg; W. G. W. Harford 1868-4-30 548 Contra Costa Mt Diablo Comment
  POM359376  Ericameria linearifolia H. de Forest 1930-3-28 s.n. Contra Costa Mt. Diablo Comment
  POM56950  Ericameria linearifolia C. F. Baker 1903-4-28 2942 Contra Costa Mitchell's Canyon, Mt. Diablo. Comment
  UC1543101  Ericameria linearifolia Donald G. Nelson 1937-4-18 503 Contra Costa on March Creek Road in canyon between Clayton and Byron (near stream along highway, dry sandy clearing near wood) Comment
  SEINET5552883  Ericameria linearifolia H. S. Gentry 1931-1 54 Contra Costa Collected near Mt. Diablo. Comment
  CAS-BOT-BC300591  Erigeron foliosus var. franciscensis Roxana S. Ferris 1924-6-14 s.n. Contra Costa Summit of Mt Diablo Comment
  CDA42377  Erigeron foliosus var. franciscensis D. G. Kelch 2012-6-1 12 .095 Contra Costa Carquinez Strait Region; 1 km east of Port Costa in the vicinity of the old brick factory. Comment
  RSA22313  Erigeron petrophilus Joseph A. Ewan 1936-7-5 9735 Contra Costa Wildcat Creek. Comment
  RSA93107  Erigeron petrophilus var. petrophilus H. L. Mason 1923-11-12 853 Contra Costa Low rocky slopes of Mt. Diablo Comment
Read comments Feb 4 2013
  UC31514  Erigeron philadelphicus var. philadelphicus J. Burtt Davy 1895-4-13 1007 Contra Costa near Lafayette 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
  RSA136732  Eriogonum J. T. Howell 1955-8-24 30903 Contra Costa Near summit of south peak, Mt. Diablo Comment
  CAS-BOT-BC248088  Eriogonum angulosum H. M. Hall 1916-8-17 10276 Contra Costa Deer Valley 182 Comment
  CDA22594  Eriogonum fasciculatum var. foliolosum A. G. Murdock, D. G. Kelch 2004-3-19 233 Contra Costa Carquinez Strait; Hercules - Carbon. Comment
  JEPS56891  Eriogonum gracile W. L. Jepson 1898-10-18 Contra Costa Deer Flat Mt. Diablo Comment
  CAS-BOT-BC250380  Eriogonum gracile John Thomas Howell 1929-9-21 4392 Contra Costa Marsh Creek Road 8 miles se. of Clayton Comment
  UC692050  Eriogonum gracile var. gracile Mary L. Bowerman 1930-9-9 458 Contra Costa North Peak, Mount Diablo Mount Diablo; above Gabriel-Hinks'? Comment
  RSA97513  Eriogonum gracile var. gracile Beecher Crampton 1949-7-15 480 Contra Costa Foothills, above the site of the extinct town of Judsonville, south of Antioch Comment
  UC849517  Eriogonum luteolum var. luteolum Lewis S. Rose 1932-10-2 32656 Contra Costa Marsh Creek Road Comment
  CAS-BOT-BC268913  Eriogonum nudum var. auriculatum Annetta Carter 1940-6-22 1601 Contra Costa Mount Diablo. Lime Ridge 274 Comment
  POM179710  Eriogonum nudum var. auriculatum J. T. Howell 1930-7-4 5337 Contra Costa Rocky hilltop in the north Berkeley Hills. Comment
  RSA0027715  Eriogonum nudum var. auriculatum Barbara J. Ertter, Rich Rabeler, Tony Morosco 1997-6-10 15662 Contra Costa Point Richmond, crest of road. 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
  UC2029149  Eriogonum nudum var. auriculatum Barbara Ertter with Dan Norris 1999-11-14 16856 Contra Costa Black Diamond Mines Regional Preserve, east end Ridge Trail. Comment
  RSA0086416  Eriogonum nudum var. psychicola Jerry A. Powell 1962-8-19 308 Contra Costa About 2 miles east of Antioch. Comment
  CAS-BOT-BC267444  Eriogonum truncatum Mary L. Bowerman 1933-5-25 2198 Contra Costa Mount Diablo. Alamo Canyon: above Wilsons' barn Comment
  CAS-BOT-BC262351  Eriogonum vimineum Alice Eastwood 1915-5-30 s.n. Contra Costa Mt. Diablo Comment
  UC691725  Eriophyllum confertiflorum var. confertiflorum Mary L. Bowerman 1933-5-3 1968 Contra Costa due s of summit Mount Diablo 822 Comment
  UCD132123  Eriophyllum jepsonii John Thomas Howell 1950-7-5 26636 Contra Costa above Nortonville. Comment
  UC507128  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-6-25 E 96 Contra Costa sw slopes of Mount Diablo Comment
  UCD132203  Eriophyllum lanatum var. achilleoides P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CAS-BOT-BC300971  Eriophyllum lanatum var. achilleoides H. E. McMinn 1922-6-30 98 Contra Costa On way up Mt. Diablo, less 1/2 way up Comment
  CAS-BOT-BC300979  Eriophyllum lanatum var. achilleoides L. Constance 1933-6-25 E 96 Contra Costa Southwest slopes of Mount Diablo, 1/2-way up Comment
  JEPS111713  Eriophyllum staechadifolium D. G. Kelch 2004-5-21 04 .218 Contra Costa Crockett - West Valona Along San Pablo Ave. ~1 k. west of Carq. Bridge 57 Comment
  JEPS61371  Erodium botrys Miss Linda Gehringer 1914-3-29 Contra Costa Brentwood Comment
  UC606753  Erodium cicutarium Edward Lee 1936-4-19 1994 Contra Costa Red Rock San Francisco Bay 54 Comment
  SEINET5604448 Image available Erodium cicutarium Rachel Van Noord 1998-1 4 Contra Costa Dinosaur Hill Park, Pleasant Hill, CA N 37* 56.149' W 122* 05.391 Comment
  UC692705  Erodium moschatum Mary L. Bowerman 1931-4-4 655 Contra Costa 4.5 mi from entrance Mount Diablo (west road) Comment
  UC691870  Eryngium aristulatum var. aristulatum Mary L. Bowerman 1931-4-18 728 Contra Costa basin of n.e. fork Sycamore Canyon (Mt.Diablo); , Sycamore Canyon Comment
  UC1584829  Eryngium articulatum Jerry Powell 1990-8-29 1587 Contra Costa Antioch Nat'l Wildlife Refuge Comment
  JEPS78607  Eryngium articulatum Walter Knight, L. R. Heckard, and Bert Johnson 1978-9-28 3291 Contra Costa Browns Island, Botany Cove Comment
  UCD77691  Eryngium spinosepalum Robert E. Preston 2000-8-6 1432 Contra Costa 2 mi se of Byron Hot Springs, on w side of Byron Hot Springs Rd. 12 Comment
  JEPS97705  Eryngium vaseyi Annetta M. Carter 1951-6-9 3061 Contra Costa 3 mi. S of Byron. Comment
  UC1190973  Eryngium vaseyi Lincoln Constance, Reino Alava and Rimo Bacigalupi 1958-6-6 3661 Contra Costa 3 mi. s.e. Byron; San Joaquin Valley 10 Comment
  UC764567  Eryngium vaseyi Alice Eastwood and John Thomas Howell 1935-4-7 2121 Contra Costa near Byron (on Marsh Creek Rd.) Comment
  CAS-BOT-BC40772  Erysimum capitatum Robert F. Hoover 1935-3-10 305 Contra Costa Antioch. Comment
  UC691082  Erysimum capitatum Mary L. Bowerman 1931-3-7 551 Contra Costa Indian Ceremonial Springs Mount Diablo Comment
  CAS-BOT-BC40760  Erysimum capitatum Mary L. Bowerman 1935-4-26 2915 Contra Costa Mount Diablo. West of the ridge west of Indian Ceremonial Spring, just below the Old Stage Road. 1005 Comment
  POM224444  Erysimum capitatum var. angustatum Alice Eastwood, J. T. Howell 1936-4-19 s.n. Contra Costa Antioch Comment
  POM272844  Erysimum capitatum var. angustatum H. L. Mason 1933-4-9 7189 Contra Costa East of Antioch along the San Joaquin River. 12 Comment
  UC762935  Erysimum capitatum var. capitatum R. F. Hoover 1937-5-14 2111 Contra Costa Antioch sand-dunes Comment
  RSA298536  Erysimum capitatum var. capitatum Robert A. Norris, John L. Inase 1981-5-10 4158 Contra Costa Near North Gate Road, Mt Diablo. 930 Comment
  UC726212  Eschscholzia A. A. Heller 1938-4-9 15018 Contra Costa 3 mi sw of Antioch Comment
  JEPS12792  Eschscholzia californica Rimo Bacigalupi with G. T. Robbins 1955-5-4 4982 Contra Costa 1 1/4 mi e Antioch; San Joaquin River front 9 Comment
  UC1126420  Eschscholzia californica R. C. Wilson 1935-3-29 159 Contra Costa 1 mi sw Mt. Diablo; Mt. Diablo Quadrangle 1005 Comment
  UCD84944  Eschscholzia californica Chuck Hughes 2010-3-29 216 Contra Costa About 0.7 mile south of Vasco Road. 238 Comment
  CAS-BOT-BC402985  Eschscholzia californica A. A. Heller 1908-4-16 8891 Contra Costa Hills east of Antioch 22 Comment
  UC186890  Eschscholzia rhombipetala E. L. Greene 1888-3-25 Contra Costa near Byron Comment
  UC1789209  Eucalyptus rudis Barbara Ertter with Tony Morosco 1998-10-18 16427 Contra Costa Lime Ridge quarry area just south of Ygnacio Vally Road (area subsequently converted into housing development 121 Comment
  UC1789208  Eucalyptus tereticornis Barbara Ertter 2000-5-20 17026 Contra Costa Sibley Volcanic Regional Preserve, Oakland Hills, trail on ridge behind interpretative center. Common tree, bark flaking, flowers white, only trees largest starting to bloom (hence open flowers out of reach). Comment
  UC1789215  Eucalyptus tereticornis Barbara Ertter with Dan Norris 2001-4-8 17604 Contra Costa Lime Ridge Open Space, main pit of west quarry area north of adjacent golf course 121 Comment
  UC880659  Eucrypta chrysanthemifolia var. chrysanthemifolia Lewis S. Rose 1941-5-15 41232 Contra Costa w slope Mt. Diablo 396 Comment
  UC570798  Euphorbia crenulata H. L. Mason 1926-3-7 2701 Contra Costa Mount Diablo Comment
  UCSB22012  Euphorbia lathyris Olson, Glen 1968-7-15 Contra Costa West side of Hope Lane, 0.2 mile north of its junction with St. Mary's Rd. 91 Comment
  SJSU8143  Euphorbia oblongata L. W. Main 1972-5-5 Contra Costa 2 mi W of Martinez in Franklin Canyon Comment
  UC1276068  Euphorbia oblongata T. C. Fuller 1959-6-25 2679 Contra Costa ca 4 mi w Martinez; Alhambra Valley 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
  CDA4842  Euphorbia oblongata Margaret Bellue, A. Seeley Jun 1955 Contra Costa Highway 4, near Concord. 0 Comment
  OBI5339  Euphorbia oblongata T. C. Fuller 1961-7-6 6585 Contra Costa On bench above crk, Alhambra Valley, hwy 4, 0.5 mi W of Glen Frazier Station, ca 4 mi W of Martinez Comment
  UC199008  Euphorbia spathulata Chesnut and Drew 1889-4-18 Contra Costa Brentwood Comment
  UC2062611  Euphorbia spathulata Barbara Ertter 2003-3-28 18134 Contra Costa Round Valley Regional Preserve, mid Hardy Canyon along High Creek. Comment
  CDA5288  Euthamia occidentalis D. G. Kelch 2004-9-2 4 .333 Contra Costa Carquinez Strait Region; Pacheco Marsh. Marsh east of Martinez and I-680 and east of lone tree Marsh. Comment
  CDA5289  Euthamia occidentalis D. G. Kelch 2004-7-9 4 .309 Contra Costa Carquinez Strait Region; Pacheco Marsh. Pacheco Hill Marsh west of Pacheco Slough. Comment
  CAS-BOT-BC310643  Euthamia occidentalis Vincent Jones 1920-8-29 s.n. Contra Costa Orwood Comment
  UC1594167  Euthamia occidentalis Jerry Powell 1991-10-10 1617 Contra Costa Antioch National Wildelife Refuge Comment
  JEPS118744  Extriplex joaquinana Sarah Lynch 2012-8-1 s. n. Contra Costa Tassajara Valley (south of Danville); north of Camino Tassajara and west of Finley Road Comment
  RSA760667  Festuca William J. Ferlatte, L. Maynard Moe 1970-4-27 1253 Contra Costa San Francisco Bay, Red Rock Island. Comment
  UC692287  Festuca californica Mary L. Bowerman 1931-5-2 788 Contra Costa n end Eagle Point ridge; Mount Diablo Comment
  UC692354  Festuca californica Mary L. Bowerman 1935-5-3 2953 Contra Costa hillside below Jungle of the Garden Gods; Mount Diablo, Rock City Ridge 472 Comment
  UC2028409  Festuca microstachys Barbara Ertter with Richard K. Brummitt 1998-5-16 16088 Contra Costa Lower Donner Canyon on north base of Mount Diablo, ca. 1/2 miles south of Donner cabin site Comment
  JEPS41063  Festuca rubra Rimo Bacigalupi, and L. R. Heckard 1965-5-11 9088 Contra Costa sw of Richmond; San Francisco Bay, Brooks Island Comment
  POM205843  Festuca rubra Jos Burtt Davy 1897-04 s.n. Contra Costa Point Isabel. Comment
  UCD66332  Festuca rubra P. B. Kennedy 1919-5-1 s.n. Contra Costa North Berkeley. Hills. Comment
  UC691899  Forestiera pubescens Mary L. Bowerman 1936-6-20 3414 Contra Costa w side of ridge w Mt. Zion; Mount Diablo 198 Comment
  UC691905  Forestiera pubescens Mary L. Bowerman 1936-6-20 3414 Contra Costa w side of ridge w Mt. Zion; Mount Diablo 198 Comment
  CDA42343  Frangula californica D. G. Kelch 2012-5-27 12 .07 Contra Costa Carquinez Strait Region; Pinole Valley Park. Comment
  SEINET7417501 Image available Frangula californica subsp. californica L. J. Musselman 1970-7-26 3769 Contra Costa W slope of Mount Diablo 1067 Comment
  CHSC23360  Frankenia salina Willis Ball 1975-6-1 534 Contra Costa Contra Loma Regional Park. In area #11. On s side of road ca. 200 yds e of main entrance to park. 60 Comment
  CAS-BOT-BC223392  Fraxinus dipetala H. E. McMinn 1922-10-1 407 Contra Costa Mitchell Canon [Canyon], Mt. Diablo Comment
  UC691855  Fraxinus dipetala Mary L. Bowerman 1935-6-1 3104 Contra Costa first small ridge e Mitchell-Pine divide; Mount Diablo 975 Comment
  CDA39689  Fraxinus latifolia D. G. Kelch 2003-8-13 3 .143 Contra Costa Carquinez Strait; Pinole Creek. Comment
  JEPS2598 Image available Fritillaria agrestis J. Burtt Davy 1895-4-7 987 Contra Costa Antioch Comment
  JEPS61883  Fritillaria agrestis Miss Linda Gehringer 1915-3-27 Contra Costa east side of Mount Diablo Mount Diablo Comment
  UC672117  Fritillaria agrestis Herbert L. Mason 1929-3-15 5057 Contra Costa about 5 mi from Brentwood (Marsh Creek Road); Marsh Creek Road Comment
  RSA87348  Galium andrewsii F. W. Peirson 1923-07 4730 Contra Costa Near summit of Mt. Diablo. 1159 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
  UC1039519  Galium aparine Herbert L. Mason 1932-3-20 6840 Contra Costa Antioch sand hills Comment
  UC691540  Galium aparine Mary L. Bowerman 1935-5-16 2985 Contra Costa Russelman Park Mount Diablo (flat at end of road) 381 Comment
  RSA760669  Galium aparine William J. Ferlatte, L. Maynard Moe 1970-4-27 1247 Contra Costa San Francisco Bay, Red Rock Island. Comment
  SEINET5739095 Image available Galium aparine Carole Meredith 1968-1 11 Contra Costa Roadside bank in forest area, 1.7 miles SE of Moraga on Canyon Road.; Moraga Comment
  UCD121622  Galium aparine Robert C. Bechtel 1952-4-12 58 Contra Costa West side Mt. Diablo. 914 Comment
  JEPS6688  Galium californicum subsp. californicum Mary L. Bowerman 1931-5-21 883 Contra Costa ridge w Curry-Cave Point Trail; Mount Diablo 533 Comment
  UC2012961  Galium murale Barbara Ertter with Travis Columbus 1990-6-10 9114 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill: near crossing on Spengler Trail NE of Briones Peak. Comment
  UCD121835  Galium nuttallii Laurence S. Jones 1934-4-8 s.n. Contra Costa West slope of Mt. Diablo. 609 Comment
  CAS-BOT-BC304349  Gamochaeta pensylvanica I. M. Johnston 1917-4-14 1841 Contra Costa Upland Comment
  UC2028292  Gamochaeta ustulata Barbara Ertter, Dan Norris 1998-6-18 16224 Contra Costa Devil's Slide trail from Knobcone Point Road, south side of Mount Diablo, upper end of trail Comment
  UC692505  Garrya elliptica Mary L. Bowerman 1933-3-11 1747 Contra Costa Fossil Ridge Mount Diablo (knoll s of 1778 point, of crest of hill) Comment
  UC692507  Garrya elliptica Mary L. Bowerman 1932-1-30 1082 Contra Costa Inner Black Hills Mount Diablo (nw corner of basin of ne fork of Sycamore Creek) Comment
  CAS-BOT-BC200630  Garrya elliptica H. E. McMinn 810 Contra Costa Oakland Hills Comment
  UC692519  Garrya flavescens Mary L. Bowerman 1931-4-25 779 Contra Costa Meridian Peak summit; Mount Diablo Comment
  CAS-BOT-BC169941  Garrya fremontii Lewis S. Rose 1934-2-28 34041 Contra Costa Summit Mt. Diablo Comment
  CAS-BOT-BC282609  Gastridium phleoides Mary L. Bowerman 1931-5-2 798 a Contra Costa Foot of Eagle Point ridge, Mount Diablo Comment
  CAS-BOT-BC282610  Gastridium phleoides Mary L. Bowerman 1933-6-14 2272 Contra Costa Ridge between two main forks, Curry-Cave Canyon, Mount Diablo Comment
  UC585537  Gastridium ventricosum Virginia E. Long 1933-6-14 224 a Contra Costa ridge entering W Fork of Curry Cave trail canyon Mt. Diablo; , ridge entering W Fork of Curry Cave trail canyon Comment
  CDA34087  Genista monspessulana D. G. Kelch, D. A. Weinstein 2011-3-5 11 .032-B Contra Costa Carqionez Strait Region.; Pt. Pinole. Comment
  UC17128  Geranium dissectum W. H. Brewer 1862-4-26 998 Contra Costa 6 mi w Martinez Comment
  UC692707  Geranium dissectum Mary L. Bowerman 1931-4-11 708 Contra Costa Pine Canyon mouth Mount Diablo Comment
  CDA29060  Geranium molle D. G. Kelch 2006-5-7 6 .154 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  UC1861827  Geranium molle Barbara Ertter, Chris Thayer 1995-4-25 13985 Contra Costa Southeast side of Mt. Diablo northeast of Danville; on Sycamore Creek near junction of path from Knobcone Point Rd. 396 Comment
  SBBG122899  Geranium rotundifolium B. Ertter 1996-6-4 14684 Contra Costa NE of jct of Grizzly Peak Blvd and Golf Course Drive, Tilden Regional Park Comment
  UC1795111  Geranium rotundifolium Barbara Ertter 1996-6-4 14684 Contra Costa Tilden Regional Park in hills E of Berkeley, restoration site NE of junction of Grizzly Peak Boulevard and Golf Course Drive Comment
  RSA34736  Gilia achilleifolia R. C. Rollins 1946-3-25 3045 Contra Costa Sacramento Northern Embarkment, Moraga Canyon, 0.8 miles east of railway tunnel Comment
  JEPS75513  Gilia achilleifolia subsp. achilleifolia P. F. Yorks 1974-4-28 141 Contra Costa on Hampton Road ca 1.9 km s Bear Creek Road (n of Briones Reservoir, Hampton Road Natural Reserve); Hampton Road Natural Reserve, n of Briones Reservoir 200 Comment
  UC691669  Gilia achilleifolia subsp. achilleifolia Mary L. Bowerman 1932-5-6 1416 Contra Costa floor Mitchell Canyon; Mount Diablo, Mitchell Canyon 213 Comment
  UC691601  Gilia achilleifolia subsp. multicaulis Mary L. Bowerman 1935-4-17 2839 Contra Costa West Road 2 mi from entrance Mount Diablo ((= North Rd.)); , West Road 289 Comment
  RSA67700  Gilia achilleifolia subsp. multicaulis Verne Grant, Alva Grant 1952-5-7 9137 Contra Costa Pioneer Camp, s.w. of Meridian Peak, Mt. Diablo Comment
  RSA469347  Gilia capitata subsp. staminea H. de Forest 1930-5-6 s.n. Contra Costa [Unspecified] Comment
  RSA79449  Gilia capitata subsp. staminea E. K. Crum 1936-4-5 1746 Contra Costa South Coast Ranges, 2 miles W of Bryon 46 Comment
  JEPS99990  Gilia clivorum G. Smick 2003-3-25 GAS 89 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1502525  Gilia clivorum Daniel J. Schoen 1980-4-9 Contra Costa Population #78004 Population Name: Eagle Ridge Comment
  UC691671  Gilia clivorum Mary L. Bowerman 1931-3-21 604 Contra Costa e end Fossil Ridge , Fossil Ridge, e end (Mount Diablo) Comment
  UC691675  Gilia clivorum Mary L. Bowerman 1935-4-26 2903 Contra Costa w Indian Ceremonial Spring; Mount Diablo, w of Indian Ceremonial Spring 1021 Comment
  UC691677  Gilia clivorum Mary L. Bowerman 1935-4-19 2858 Contra Costa near Turtle Rock (dry hillside on opposite side of road); Mount Diablo, near Turtle Rock 457 Comment
  UC908353  Gilia clivorum Herbert L. Mason 1938-5-3 11752 Contra Costa trail between Juniper Camp and Deer Flat (Mount Diablo); , btw Juniper Camp and Deer Flat 990 Comment
  UC909003  Gilia clivorum Herbert L. Mason 1934-4-8 8052 Contra Costa 11 mi s Marsh Creek Road (on road from Marsh Creek to Livermore); on rd from Marsh Creek to Livermore 609 Comment
  UCR182844  Gilia clivorum Peter L. Morrell, N. Takebayashi, Diana Wolf, D. E. Krause 1995-5-21 471 Contra Costa Central Coast, S of Clayton in Mitchell Canyon, above the banks of Mitchell Creek and beneath Eagle Peak 400 Comment
  UC2027715  Gilia clivorum Barbara Ertter with Stu Garrett 1997-3-29 15524 Contra Costa West side Mount Diablo, Burma Road above North Gate Road. Comment
  UC2027812  Gilia clivorum Barbara Ertter with Stu Garrett 1997-3-29 15541 Contra Costa West side Mount Diablo, Mothers Trail. Comment
  UC449815  Gilia tricolor subsp. diffusa Chestnut and Drew 1889-4-16 Contra Costa Clayton Comment
  UC691598  Gilia tricolor subsp. tricolor Mary L. Bowerman 1931-3-14 569 Contra Costa Windy Point Mount Diablo, Windy Point Comment
  SEINET10464451  Githopsis diffusa subsp. robusta Bowerman 1935-5-3 BOWERMAN 2952 Contra Costa Rock City Ridge (Fossil Ridge): hillside below the Jungle of the Garden Gods 488 Comment
  UC691592  Githopsis diffusa subsp. robusta Mary L. Bowerman 1935-5-3 2952 Contra Costa below Jungle of the Garden Gods (Rock City Ridge (= Fossil Ridge)); Mount Diablo, Rock City Ridge 487 Comment
  RSA405218  Glycyrrhiza lepidota E. E. Stanford 1930-5-24 1507 Contra Costa Marsh Creek Canyon. Comment
  UC691823  Gnaphalium palustre Mary L. Bowerman 1935-9-13 3342 Contra Costa Frog Pond Mount Diablo Comment
  CAS-BOT-BC303891  Gnaphalium palustre Mary L. Bowerman 1935-6-28 3168 Contra Costa Mt Diablo. Chase Pond. S of summit, by Old Government Trail: dry upper margins of pond 548 Comment
  UCD32381  Godetia amoena var. concolor Beecher Crampton 1950-4-22 523 Contra Costa Contra Costa County, above site of Judsonville, west of old Empire Coal Mine. 167 Comment
  JEPS111662  Grindelia hirsutula A. G. Murdock 2004-5-28 284 Contra Costa Pinole Peak 205 Comment
  UC1042345  Grindelia hirsutula Lewis S. Rose 1954-9-27 54116 Contra Costa Byron 6 Comment
  UC87885  Grindelia hirsutula T. S. Brandegee June 1884 171 Contra Costa Antioch Comment
  UC984921  Grindelia hirsutula Ira L. Wiggins 1930-4-17 4577 Contra Costa near Byron Comment
  CAS-BOT-BC305231  Grindelia hirsutula John Thomas Howell 1929-7-7 4322 Contra Costa 2 miles south of Rodeo Comment
  CAS-BOT-BC305239  Grindelia hirsutula H. E. McMinn No date on label 138 Contra Costa Above Richmond ferry slip Comment
  CAS-BOT-BC305249  Grindelia hirsutula R. F. Hoover 1966-8-31 9945 Contra Costa 1.5 mi. e. of Danville, at junction of Tassajara and Freitas Roads Comment
  SEINET3140051  Grindelia hirsutula M. P. Dunford 1980-7-30 1510- 12 -2 Contra Costa Cultivated specimen from seed collected just W of Antioch Bridge over the San Joaquin River Comment
  UCR197912  Grindelia robusta Beecher Crampton 1950-6-20 594 Contra Costa Richmond, south of Cutting Boulevard, immediately adjacent to Carlson Boulevard, north of Stege Ave. 15 Comment
  JEPS20871  Guillenia flavescens J. Burtt Davy 1895-4-7 969 Contra Costa Antioch Comment
  UC1736552  Guillenia flavescens Dean W. Taylor 1994-3-30 14108 Contra Costa Mt. Diablo (in Mt. Diablo State Park), 2 miles South along North Gate Road from the North Gate kiosk, 365 Comment
  UC691153  Guillenia flavescens Mary L. Bowerman 1935-4-22 2879 Contra Costa 2 mi from North Gate (North Road, just w of chaparral); Mount Diablo 213 Comment
  JEPS54093  Guillenia lasiophylla W. L. Jepson 1921-5-22 9219 Contra Costa s slope Mt. Diablo 792 Comment
  JEPS68950  Guillenia lasiophylla Edward Lee 1935-3-10 1279 Contra Costa Donovan Road, w watershed of Kirker Creek Kirker Pass, Kirker Creek Comment
  UC10944  Guillenia lasiophylla W. H. Brewer 1862-4-24 987 Contra Costa Camp 68 Martinez Comment
  UC10955  Guillenia lasiophylla Ivar Tidestrom 1893-4-15 Contra Costa Sheep Island Comment
  UC691088  Guillenia lasiophylla Mary L. Bowerman 1933-4-26 1924 Contra Costa ese of North Peak ridge peak; Mount Diablo 609 Comment
  UC691127  Guillenia lasiophylla Mary L. Bowerman 1932-4-27 1401 Contra Costa canyon w Riggs Canyon; Mount Diablo, Oyster Ridge 350 Comment
  POM181442  Guillenia lasiophylla I. L. Wiggins 1930-4-17 4564 Contra Costa One mile east of Mountain House, on road to Byron. Comment
  UC1795861  Hedera helix Barbara Ertter 1994-10-23 13915 Contra Costa Southwest El Cerrito, north edge Breuner's parking lot, northwest of Albany Hill. Comment
  SBBG122850  Hedypnois cretica B. Ertter 1994-5-23 12809 Contra Costa end of Rydin Rd, Pt Isabel at S end of Richmond Comment
  UCD159534  Hedypnois cretica D. S. Park 2011-4-13 282 Contra Costa east side of Sunrise Hill Rd. Abundant. Not in flower/basal rosette. Disturbed/weedy habitat. Hillside. 181 Comment
  CAS-BOT-BC306337  Helenium John Thomas Howell 1926-1-16 1626 Contra Costa San Leandro Canyon, Oakland Hills Comment
  JEPS111680  Helenium puberulum D. G. Kelch 2003-8-13 03 .134 Contra Costa Pinole Creek 68 Comment
  CDA6432  Helenium puberulum T. C. Fuller 1958-7-3 1270 -58 Contra Costa Carquinez Strait; Highway 4, 4 miles west of Martinez. 0 Comment
  CAS-BOT-BC305320  Helianthella castanea John Thomas Howell 1940-4-21 15398 Contra Costa Pine Canyon, Mt. Diablo Comment
  JEPS96539  Helianthella castanea Dean W. Taylor 1993-5-2 13419 Contra Costa hillside above Selby Siding, ca. 1 mile W of Carquinez Bridge, near BM 378 106 Comment
  UC62937  Helianthella castanea H. M. Evans 1907-4-6 Contra Costa Pine Canyon, Mt. Diablo Comment
  UC2028219  Helianthella castanea Barbara Ertter with Christopher Baysdorfer 1998-5-10 16127 Contra Costa West side Lime Ridge Open Space northwest of Mount Diablo. Comment
  CAS-BOT-BC223916  Helianthemum scoparium Robert F. Hoover 1939-5-20 4108 Contra Costa Head of Markley Canyon Comment
  CAS-BOT-BC223917  Helianthemum scoparium Mary L. Bowerman 1933-3-25 1775 Contra Costa Mount Diablo. Emmons Canyon: (Diablo Stock Farm (Stone Valley) canyon) Comment
  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
  JEPS35456  Helianthus annuus W. L. Jepson 1895-9-14 Contra Costa Walnut Creek Comment
  RSA0029054  Helianthus gracilentus Barbara Ertter 1999-6-12 16722 Contra Costa Knobcone Point Road on south side of Mount Diablo. At head of NE fork of Sycamore Creek. 488 Comment
  UC2027833  Helianthus gracilentus Barbara Ertter with John Ginochio and Mary Bowerman 2001-5-8 17632 Contra Costa Northwest flank of Mount Diablo, Ginochio property north of park boundary, upper end of Government Road on Long Ridge. Comment
  UC2028257  Helianthus gracilentus Barbara Ertter 1999-6-12 16722 Contra Costa Knobcone Point Road on south side of Mount Diablo, burned chamissal at head of NE fork of Sycamore Creek. Comment
  UC1050535  Helleborus orientalis N. Floy Bracelin 1944-2-2 1942 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1050190 Image available Helleborus orientalis var. atrorubens N. Floy Bracelin 1945-3-11 2410 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC305873  Helminthotheca echioides R. E. Frenkel 1964-6-20 593 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  UC691806  Helminthotheca echioides Mary L. Bowerman 1932-11-19 1660 Contra Costa on bank of grey material excavated from tunnel to Club Spring No. 4 (Mountain Springs Canyon); Mount Diablo, , Mountain Springs Canyon Comment
  CAS-BOT-BC306266  Hemizonia congesta subsp. lutescens R. F. Hoover 1969-9-1 11568 Contra Costa Between San Pablo and Pinole Comment
  CAS-BOT-BC314873  Hemizonia congesta subsp. luzulifolia R. F. Hoover 1939-4-25 4061 Contra Costa Richmond Hills Comment
  LA203706  Hemizonia congesta subsp. luzulifolia John Thomas Howell; 1930-9-28 5488 Contra Costa 2 mi. from Concord on road to Walnut Creek Comment
  UC697176  Hemizonia congesta subsp. luzulifolia Mary L. Bowerman 1931-10-13 1061 Contra Costa w Sycamore Creek (roadside); Mount Diablo, Sycamore Valley Comment
  UC762663  Hemizonia congesta subsp. luzulifolia R. F. Hoover 1937-9-2 2709 Contra Costa Walnut Creek Comment
  UC990633  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1909-9-24 Contra Costa roadside 1 mi n San Ramon Comment
  CAS-BOT-BC314851  Hemizonia congesta subsp. luzulifolia David D. Keck 1932-7-7 1740 Contra Costa 10 miles S. of Brentwood on Vasco Road to Livermore, southerastern Contra Costa County Comment
  CAS-BOT-BC314859  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-BC314865  Hemizonia congesta subsp. luzulifolia John Thomas Howell 1929-9-21 4386 Contra Costa 4 miles west of Clayton Comment
  CDA33546  Hemizonia fitchii Fisher, Deviney 2010-6-2 PDR# 1645252 Contra Costa Byron; Armstrong Road Extension 1/3 mile southeast of Vasco Rd. Comment
  POM299467  Hemizonia fitchii L. S. Rose 1941-10-13 41464 Contra Costa 1 miles E of Walnut Creek. 50 Comment
  UCR184664  Hemizonia pungens subsp. pungens Dean Kelch 2005-11-23 06 .507 Contra Costa Point Molate 5 Comment
  UC1618408  Hesperevax sparsiflora var. sparsiflora Barbara Ertter, Chris Thayer 1993-5-7 11709 Contra Costa 1/2 mi n of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land e of Tilden Park 457 Comment
  UC2027820  Hesperevax sparsiflora var. sparsiflora Barbara Ertter with Stu Garrett 1997-3-29 15536 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  CAS-BOT-BC167427  Hesperolinon breweri T. S. Brandegee 1884-5-1 s.n. Contra Costa Near Antioch Comment
  CAS-BOT-BC167428  Hesperolinon breweri M. K. Curran 1884-1-1 s.n. Contra Costa Antioch Comment
  RSA0031306  Hesperolinon breweri Barbara Ertter 2000-5-14 17000 Contra Costa Donner Canyon on north side of Mount Diablo. 335 Comment
  UC1212213  Hesperolinon breweri Rimo Bacigalupi and Alex Hawkes 1951-6-4 3360 Contra Costa saddle between main and n peaks Inner South Coast Ranges, Mount Diablo 883 Comment
  UC692694  Hesperolinon breweri Mary L. Bowerman 1935-6-15 3137 Contra Costa Eagle Point Ridge w 2632; Mount Diablo 762 Comment
  UC692701  Hesperolinon breweri Mary L. Bowerman 1935-5-22 3058 Contra Costa saddle w Twin Peaks ((Eagle Point Ridge)); Mount Diablo 441 Comment
  CAS-BOT-BC167433  Hesperolinon breweri John Thomas Howell 1942-7-19 17047 Contra Costa Serpentine ne. of Deer Flat, Mt. Diablo Comment
  CAS-BOT-BC167443  Hesperolinon breweri Mary L. Bowerman 1933-6-7 2254 Contra Costa North Peak Ridge, exposure south. Mount Diablo 1005 Comment
  UC1058216  Hesperolinon breweri W. H. Brewer May 29 1862-Jan 1 1900 1181 Contra Costa Camp 71 Mount Diablo Range, Marsh's Ranch Comment
  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
  UC186817  Heterodraba unilateralis F. T. Bioletti 1892-1 Contra Costa Byron Comment
  JEPS45024  Heteromeles arbutifolia W. L. Jepson 1921-11-19 9516 Contra Costa Mt. Diablo Comment
  OBI62818  Heteromeles arbutifolia John Osborne 1970-11-21 14 Contra Costa 3173 Somerset Dr., Lafayette 76 Comment
Read comments Sep 18 2016
  SEINET3840819  Heteromeles arbutifolia Unknown 2006-6-23 6 .322C Contra Costa West Valona, West of Zampa Bridge above San Pablo avenue, along the small stream draining north into the Western end of the Carquinez Strait 91 Comment
  CAS-BOT-BC311160  Heterotheca sessiliflora subsp. bolanderi John Thomas Howell 1930-7-31 5416 Contra Costa North Berkeley Hills 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
  UC692352  Heuchera micrantha var. erubescens Mary L. Bowerman 1933-6-14 2283 Contra Costa inner Black Hills (second gully w of n spur); Mount Diablo, Black Hills 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-BC203382  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
  JEPS75529  Hirschfeldia incana P. F. Yorks 1976-5-31 509 Contra Costa n. Briones Reservoir (ca. 2 km. s. of Bear Creek Rd. on Hampton Rd. in Hampton Natural Reserve); Hampton Natural Reserve 200 Comment
  UCD84891  Holcus mollis David L. Hanson 1978-3-7 s.n. Contra Costa Contra Costa County. Comment
  CAS-BOT-BC325849  Holocarpha heermannii A. D. E. Elmer 1903-7-1 4613 Contra Costa Mt. Diablo Comment
  CDA23596  Holocarpha heermannii D. G. Kelch 2007-10-6 7 .63 Contra Costa Carquinez Strait; Fernandez Ranch. Muir Land Trust Property 4.5 km W of Rodeo. Comment
  CDA7977  Holocarpha heermannii D. G. Kelch, A. G. Murdock 2004-9-2 4 .329 Contra Costa Carquinez Strait Region; McEwen Road from Port of Costa - I-4 near summit of road. Comment
  JEPS100138  Holocarpha heermannii A. Langston 2003-7-28 AL 80 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS13492  Holocarpha heermannii W. L. Jepson 1920-8-12 9078 Contra Costa s slope, towards summit Mount Diablo Comment
  UC1069572  Holocarpha heermannii H. S. Yates 1934-9-2 4085 Contra Costa 2 mi s Mt. Diablo; Mt. Diablo Quadrangle Comment
  CAS-BOT-BC325831  Holocarpha heermannii John Thomas Howell 1930-9-28 5499 Contra Costa 6.3 miles from Byron on teh Marsh Creek Road Comment
  CAS-BOT-BC325839  Holocarpha heermannii R. Bacigalupi 1922-9-24 s.n. Contra Costa Fields between Clayton and Mitchell Canyn, Mt. Diablo Comment
  CAS-BOT-BC325841  Holocarpha heermannii L. R. Abrams 1910-10-8 4337 Contra Costa Green Valley, Mt. Diablo 304 Comment
  RSA128986  Holocarpha heermannii Peter H. Raven 1950-7-5 2484 Contra Costa Deer Ridge, Mt. Diablo. 884 Comment
  RSA81664  Holocarpha heermannii James I. McMurphy 1909-9-25 s.n. Contra Costa Below Alamo. Comment
  CAS-BOT-BC320226  Holocarpha macradenia David J. Powers 1974-10-6 1001 Contra Costa 100-400 feet east of highway 80, and 100-300 yards south of Appian Way, Pinole Comment
  UC1550280  Holocarpha macradenia Dean Kelch 1988-8-8 Contra Costa immediately s I-80 (ca 1/2 mi w of Appian Way); Pinole Comment
  RSA0008457  Holocarpha macradenia David Powers 1974-10-6 1001 Contra Costa Pinole, 100-300 feet east of Hwy 80 and 100-300 yards south of Appian Way Comment
  CAS-BOT-BC320259  Holocarpha obconica L. S. Rose 1941-10-16 41466 Contra Costa 6 miles west of Byron, on the Marsh Creek Road 33 Comment
  UC702539  Holocarpha obconica L. S. Rose 1941-10-16 41466 Contra Costa 6 mi w Byron (on the Marsh Creek Road) 33 Comment
  CAS-BOT-BC320243  Holocarpha obconica David D. Keck 1933-11-2 2621 Contra Costa Deer Valley, 1/2 mi. S. of road to Brentwood Comment
  CAS-BOT-BC320251  Holocarpha obconica H. M. Hall 1930-9-24 12846 Contra Costa Vasco Road at Junction 4 miles west of Byron Comment
  NY180099  Holocarpha obconica subsp. autumnalis D. D. Keck 1933-10-7 2567 Contra Costa 1.6 miles W of Byron, 1.4 miles from junction with 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-BC324613  Holocarpha virgata David D. Keck 1933-11-2 2624 Contra Costa 5 miles east of Clayton on Marsh Creek Road just opposite Mt. Diablo Comment
  CHSC84517  Holocarpha virgata subsp. virgata John Dittes 2003-6-28 2003 -69 Contra Costa San Joaquin Valley; foothills, ca. 13.3 air-mile north by northeast of Livermore, ca. 3.4 air-miles south by southwest of Brentwood, ca. 1.3 air-miles southeast of Marsh Creek Reservoir Gauging Station. 73 Comment
Read comments Dec 25 2008
  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
  SEINET4090611  Holodiscus discolor B. C. Templeton 1962-1 sn Contra Costa Mountain Diablo. Comment
  UC756636  Hordeum G. L. Stebbins Jr. 1946-6-9 3661 Contra Costa 2 mi E of El Cerrito (near Mira Vista Country Club) Comment
  UC756652  Hordeum brachyantherum subsp. brachyantherum G. L. Stebbins Jr. 1946-6-9 3654 Contra Costa 2 mi E of El Cerrito (near Mira Vista Country Club) Comment
  POM181466  Hordeum depressum I. L. Wiggins 1930-4-17 4578 Contra Costa 1/4 mi. S. of Byron Comment
  UC650563  Hordeum depressum Ira L. Wiggins 1930-4-17 4569 Contra Costa E of Mountain House (on road to Byron) Comment
  UCD85614  Hordeum depressum Beecher Crampton 1968-3-27 8234 Contra Costa SE corner, ca. 3.5 miles south of Byron. Comment
  CAS-BOT-BC284990  Hordeum depressum Ira L. Wiggins 1930-4-17 4569 Contra Costa 2 mi. east of Mountain House on road to Byron 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
  UC1132529  Hordeum marinum subsp. gussoneanum C. M. Belshaw 1936-5-7 2049 Contra Costa 2 mi s Danville; Mt. Diablo Quad. Comment
  UCD85827  Hordeum marinum subsp. gussoneanum Beecher Crampton 1956-5-14 3411 Contra Costa 1 mile east of Pacheco, Buchanan Field. Comment
  UC606740  Hordeum murinum subsp. leporinum Edward Lee 1936-4-19 1962 Contra Costa ne corner island (Red Rock, San Francisco Bay); San Francisco Bay, Red Rock, ne corner island Comment
  UC692425  Hordeum murinum subsp. leporinum Mary L. Bowerman 1933-5-17 2097 Contra Costa branch of Curry Canyon due s Olafson's barn (Mount Diablo); , branch Curry Canyon Comment
  UC691092  Horkelia californica subsp. dissita Mary L. Bowerman 1930-6-28 404 Contra Costa Mount Diablo, Lower Silver Spring Comment
  UC691094  Horkelia californica subsp. dissita Mary L. Bowerman 1932-11-25 1666 Contra Costa Mount Diablo, Silver Spring 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
  CDA24877  Hornungia procumbens Jim Jokerst 1989-3-28 3057 Contra Costa Northwest of junction Byron Hot Springs Road and Armstrong Road, northeast of Livermore. 0 Comment
  JEPS1653  Hydrophyllum occidentale W. L. Jepson 1921-5-22 9209 Contra Costa Mt. Diablo 1158 Comment
  UC55118  Hypochaeris glabra H. M. Hall 1901-4-5 1730 Contra Costa Mt. Diablo 527 Comment
  CDA7491  Hypochaeris radicata Goodwin, M. K. Bellue 1932-5-6 Contra Costa 0 Comment
  RSA0013874  Ibicella lutea G. Thomas Robbins 1959-8-1 4114 Contra Costa Recently completed frontage road just south of Mt. Diablo Blvd. (about 0.5 mi. E of concrete bridge at Charles Hill and about 0.2 mi. W of junction of Hidden Valley Road), about 2 mi. W of Lafayette. 145 Comment
  UC2028408  Iris pseudacorus Barbara Ertter with Richard K. Brummitt 1998-5-16 16096 Contra Costa Antioch Marina, edge of brackish marsh Comment
  JEPS78631  Isolepis cernua Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3306 Contra Costa Botany Cove Browns Island, Botany Cove Comment
  JEPS41044  Iva axillaris subsp. robustior Rimo Bacigalupi and L. R. Heckard 1965-5-11 9069 Contra Costa w side Brooks Island (sw of Richmond); San Francisco Bay Comment
  UC1050492  Jovellana violacea N. Floy Bracelin 1942-5-24 1412 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  CAS-BOT-BC102304  Juglans hindsii Lewis S. Rose 1936-4-24 36140 Contra Costa Marsh Creek, 5 mi. E. of Clayton 60 Comment
  UC2028644  Juglans hindsii Barbara Ertter with Chris Thayer 1996-10-25 15355 Contra Costa Northwest flank of Mount Diablo Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park Comment
  JEPS127666  Juncus ambiguus Barbara Ertter with David Gowen and Michael Park 2017-5-2 22810 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  CDA15236  Juncus balticus G. F. Hrusa, D. Crowe 1998-5-8 14367 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg. Comment
  CHSC97914  Juncus balticus D. G. Kelch 2006-6-14 06 .334 Contra Costa Between Rte 4 and Carbon Rd. E Rodeo. 24 Comment
  JEPS112451  Juncus balticus D. G. Kelch 2005-4-24 05 .180 Contra Costa Franklin Canyon Franklin Canyon. Collier Hill. West Carbon. 16 Comment
  JEPS25392  Juncus balticus Rimo Bacigalupi with G. T. Robbins and Francia Chisaki 1959-4-14 7006 Contra Costa 8 mi s Antioch (just off Deer Valley Road); Briones Valley 79 Comment
  UC2029189  Juncus balticus Barbara Ertter with Brad Olson et al. 2000-6-2 17308 Contra Costa Brushy Peal Regional Preserve NE of Livermore Comment
  IRVC14055  Juncus balticus J. Lanier 1967-5-21 s.n. Contra Costa Tice Valley Comment
  UC1601708  Juncus bufonius J. Burtt Davy 1897-9-4 4080 Contra Costa Stege Comment
  JEPS111070  Juncus bufonius var. bufonius Lee Echols 2003-6-3 s.n. Contra Costa N of Lark Drive in central portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  UC2028973  Juncus bufonius var. bufonius Barbara Ertter with Brad Olson et al. 2000-6-2 17300 Contra Costa north side Brushy Peak Regional Preserve NE of Livermore. Comment
  JEPS111067  Juncus bufonius var. congestus Lee Echols 2003-4-15 s.n. Contra Costa S of Lark Drive and N of EPA Building, within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  CDA2696  Juncus gerardi Barbara Ertter, S. Matson 2003-5-31 18175 Contra Costa Carquinez Strait; Martinez Regional Shoreline along Pickleweed Trail west of Arch Bridge. 0 Comment
  RSA722467  Juncus gerardi Barbara Ertter, Steve Matson 2003-5-31 18175 Contra Costa Martinez Regional Shoreline, brackish marsh along Pickleweed Trail west of Arch Bridge. Comment
  UC692075  Juncus mexicanus Mary L. Bowerman 1933-4-22 1884 Contra Costa nw end Shell Ridge (s of the highway (Heather Farm)); Mount Diablo Comment
  SEINET3880409  Juncus nevadensis Kaye H. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4980 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough. SE portion of Bethel Slough.; 0 610 Comment
  UC1601775  Juncus occidentalis Jos. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  UC2028537  Juncus occidentalis Barbara Ertter 1998-2-15 15912 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, open bank southeast of Indian Valley Pond. Comment
  JEPS111080  Juncus phaeocephalus var. paniculatus Lee Echols 2003-6-2 s.n. Contra Costa N of Lark Drive in SW portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond 15 Comment
  JEPS112444  Juncus tenuis D. G. Kelch 2003-4-3 03 .366 Contra Costa Cummings Skyway 115 Comment
  UC521770  Juncus xiphioides Joseph Andorfer Ewan 1933-10-15 8019 Contra Costa sw slope Mt. Diablo 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
  POM212437  Juniperus californica Joseph A. Ewan 1933-10-15 8038 Contra Costa SW slope of Mt Diablo. 1067 Comment
  CAS-BOT-BC235873  Keckiella corymbosa H. E. McMinn 1922-6-2 97 Contra Costa Near summit of Mt. Diablo Comment
  JEPS55998  Keckiella corymbosa L. R. Heckard and R. Bacigalupi 1968-6-27 Contra Costa Bald Ridge Mt. Diablo (along trail to Eagle Peak, ne of Deer Flat) 670 Comment
  UC1795838  Kickxia elatine Barbara Ertter 1995-9-30 14525 Contra Costa North bank of Cerrito Creek at end of Yosemite Avenue in El Cerrito, foot of Albany Hill; stonework bank at edge of overgrown sluggish creek. Comment
  POM300737  Koeleria macrantha Mary L. Bowerman 1935-5-8 2974 a Contra Costa Knoll on spur south of Pioneer Camp. (20 feet higher than the upper edge of the chaparral) 762 Comment
  CAS-BOT-BC340540  Lactuca serriola John Thomas Howell; Gordon H. True 1972-7-29 48918 Contra Costa On Byron Hot Springs Road southeast of Byron Comment
  CAS-BOT-BC340696  Lactuca virosa John Thomas Howell 1943-8-22 19310 Contra Costa Near head of San Leandro Creek Canyon 243 Comment
  CAS-BOT-BC340697  Lactuca virosa John Thomas Howell 1942-6-28 17004 Contra Costa Oakland Hills near Redwood Peak Comment
  CDA7515  Lactuca virosa J. T. Howell 1943-8-22 19310 Contra Costa Near head of San Leandro Creek Canyon. Comment
  POM303721  Lactuca virosa J. T. Howell 1943-8-22 19310 Contra Costa Near head of San Leandro Creek Canyon. 244 Comment
  CAS-BOT-BC341475  Lagophylla ramosissima John Thomas Howell 1930-9-28 5494 Contra Costa Marsh Creek Road, 7 miles east of Clayton Comment
  UC697157  Lagophylla ramosissima Mary L. Bowerman 1930-10-19 487 Contra Costa South road at Garden-of-the-Gods (roadside); Mount Diablo Comment
  JEPS99988  Lamarckia aurea G. Smick 2003-4-22 GAS 140 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2028539  Lamium amplexicaule Barbara Ertter 1998-3-1 15920 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, Sulfur Creek upstream from Good's Spring. Comment
  CAS-BOT-BC412726  Lastarriaea coriacea Alice Eastwood 1921-4-18 10275 Contra Costa Antioch Comment
  CAS-BOT-BC412727  Lastarriaea coriacea Dr. A. Kellogg; W. G. W. Harford 1868-1-1 865 Contra Costa Antioch Comment
  JEPS103664  Lastarriaea coriacea David Gowen 2003-7-6 Contra Costa Lime Ridge Open Space, N end 182 Comment
  UC62989  Lasthenia californica subsp. californica H. M. Hall 1901-4-5 1749 a Contra Costa Mt. Diablo Comment
  UC62991  Lasthenia californica subsp. californica H. M. Hall 1901-4-5 1749 Contra Costa Mt. Diablo Region of San Francisco Bay Comment
  UC65033  Lasthenia californica subsp. californica H. M. Hall 1901-4-1 1767 b Contra Costa Mt. Diablo Region of San Francisco Bay (lower slopes) Comment
  RSA0068474  Lasthenia californica subsp. californica Katie Gallagher, Nick Jensen 2014-4-26 205 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  JEPS85834  Lasthenia ferrisiae Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8124 Contra Costa alkali sink w and adjacent to Clifton Court Forebay (ca 15 air mi sw of Stockton) Comment
  CAS-BOT-BC353335  Lasthenia fremontii Ira L. Wiggins 1930-4-17 4579 Contra Costa Roadside 0.25 mi. S of Byron. Comment
  POM55152  Lasthenia fremontii C. F. Baker 1903-4-27 2867 Contra Costa Byron. Comment
  JEPS35363  Lasthenia glaberrima W. L. Jepson 1892-5-24 Contra Costa Mt. Diablo Comment
  UC194265  Lasthenia glaberrima Edward Lee Greene 1886-5-24 Contra Costa Mt. Diablo Comment
  POM301039  Lasthenia glaberrima Mary L. Bowerman 1935-6-21 3153 Contra Costa Mount Diablo: South of Turtle Rock, pool east of main pond Comment
  UC2070575  Lasthenia glaberrima Barbara Ertter with Kevin Hintsa et al. 2003-4-20 18158 Contra Costa Lower Turtle Rock Ponds in Pine Canyon, west side of Mount Diablo, NE side of Barbeque Terrace Road. Comment
  CAS-BOT-BC352771  Lasthenia glabrata subsp. glabrata John Thomas Howell 1933-5-14 11240 Contra Costa St. Mary's College Comment
  UC1563907  Lasthenia gracilis Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8119 Contra Costa alkali sink w and adjacent to Clifton Court Forebay (ca. 15 air mi sw of Stockton) 0 Comment
  UC62988  Lasthenia gracilis H. M. Hall 1901-4-5 1744 Contra Costa lower slopes Mt. Diablo Comment
  UC697155  Lasthenia microglossa Mary L. Bowerman 1932-3-27 1141 Contra Costa Mitchell Rock Mount Diablo, Mitchell Rock Comment
  SEINET3387255 Image available Lasthenia minor Lewis S. Rose 1933-3-29 33039 Contra Costa Nortonville. Comment
  CAS-BOT-BC366306  Lasthenia minor J. T. Howell 1933-3-29 10895 Contra Costa Nortonville Comment
  CAS-BOT-BC370788  Lasthenia platycarpha R. F. Hoover 1967-4-28 10505 Contra Costa Byron Hot Springs Comment
  CAS-BOT-BC370829  Lasthenia platycarpha Alice Eastwood 1914-3-14 3823 Contra Costa Byron Springs Comment
  JEPS9902  Lasthenia platycarpha Greene 1889-3-23 Contra Costa Byron Comment
  UC2028326  Lathyrus jepsonii var. californicus Barbara Ertter with Richard K. Brummitt 1998-5-13 16140 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, south leg of Loughler Loop Trail just west of pass over central ridge. Comment
  JEPS78609  Lathyrus jepsonii var. jepsonii Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3301 Contra Costa Browns Island, South Landing Browns Island; , South Landing Comment
  UCD35904  Lathyrus vestitus Beecher Crampton 1966-4-26 7667 Contra Costa ca. 2.5 miles west of Martinez on the road to Crockett. Comment
  UC15363  Lathyrus vestitus var. vestitus W. H. Brewer 1862-4-30 Contra Costa Monte Diablo Comment
  UC1819260  Lathyrus vestitus var. vestitus Barbara Ertter, Dale Sanders, Dan Norris 1994-3-26 12332 Contra Costa Peyton Hill east of I-680 east of Martinez, south of Waterfront Road, southeast side of hill, with dense patches of Wyethia angustifolia. 30 Comment
  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
  RSA666403  Lavatera cretica Barbara Ertter 1991-5-12 9813 Contra Costa Point Isabel Regional Shoreline in SW corner of El Cerrito, on San Francisco Bay. Comment
  CAS-BOT-BC323911  Layia chrysanthemoides C. F. Baker 1903-4-27 2903 Contra Costa Byron Comment
  CAS-BOT-BC323926  Layia chrysanthemoides Alice Eastwood 1914-3-14 3820 Contra Costa Byron Springs Comment
  CAS-BOT-BC323927  Layia chrysanthemoides Alice Eastwood 1921-4-18 10257 Contra Costa Antioch Comment
  JEPS89805  Layia chrysanthemoides Dean W. Taylor 1992-4-16 12388 Contra Costa s of Byron Hot Springs (San Joaquin Valley, in swale draining on e margin Section 34); San Joaquin Valley 45 Comment
  UC89156  Layia chrysanthemoides C. F. Baker 1903-4-27 2903 Contra Costa Byron Comment
  CAS-BOT-BC323928  Layia chrysanthemoides Alice Eastwood; John Thomas Howell 1935-4-7 2119 Contra Costa Near Byron Comment
  UC30649  Layia gaillardioides W. L. Jepson 1891-5-23 Contra Costa Mt. Diablo Comment
  UC30668  Layia gaillardioides H. P. Chandler 1900-3-24 Contra Costa Briones Hills; Mount Diablo Comment
  UC691553  Layia gaillardioides Mary L. Bowerman 1933-5-5 2001 Contra Costa toward mouth Alamo Canyon; Mount Diablo 304 Comment
  UC761861  Layia gaillardioides R. F. Hoover 1936-4-16 973 Contra Costa e slope of Bald Peak Comment
  UC761879  Layia glandulosa R. F. Hoover 1937-5-14 2115 Contra Costa Comment
  CAS-BOT-BC327249  Layia hieracioides David D. Keck 1941-6-5 5307 Contra Costa Berkeley Hills, Fish Creek Rd., 0.25 mi W of E. portal of Broadway Tunnel 335 Comment
  UC691546  Layia hieracioides Mary L. Bowerman 1933-5-18 2133 Contra Costa SW corner S5 R1S R1E Comment
  CAS-BOT-BC370670  Layia platyglossa Mary L. Bowerman 1935-4-26 2916 Contra Costa Mount Diablo. Ridge west of Indian Ceremonial Spring. 1005 Comment
  JEPS89794  Layia platyglossa Dean William Taylor 1971-3-28 992 Contra Costa on Mount Diablo, Mount Diablo State Park Mount Diablo; Mount Diablo State Park, Mount Diablo 914 Comment
  UC30669  Layia platyglossa Harley P. Chandler 1901-4-5 992 Contra Costa Mt. Diablo Comment
  UC518017  Layia platyglossa Lewis S. Rose 1933-4-17 33093 Contra Costa Antioch Comment
  CAS-BOT-BC377905  Layia platyglossa Paul F. Covel 1938-5-8 s.n. Contra Costa Mt. Diablo Comment
  UC2028000  Layia platyglossa Barbara Ertter, Tony Morosco 1998-4-12 16019 Contra Costa Mount Olympia on north side of Mount Diablo, around rocks at summit. Comment
  UC2032848  Lemna Doran, Andrew Scott 2012-3-20 719 Contra Costa Southern part of Brooks Island, west side of quarry in pool. Comment
  UC2027754  Lemna gibba Barbara Ertter 1996-11-24 15413 Contra Costa Southwest side of Mount Diablo, streamlet east of Macedo Ranch trailhead. Comment
  UC2028381  Lemna minor Barbara Ertter 1998-6-20 16244 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Bob Pond at Old Borges Ranch Comment
  UC1124480  Lepechinia calycina R. W. Lundh 1932-8-25 141 Contra Costa Mount Diablo 822 Comment
  CAS-BOT-BC89844  Lepidium Bauer 1857-5-1 s.n. Contra Costa Mond Diabola. Comment
  CAS-BOT-BC88702  Lepidium acutidens Alice Eastwood 1914-3-14 3771 Contra Costa Byron Springs. Comment
  UCD146720  Lepidium chalepense G. F. Hrusa; D. Crowe 1998-5-8 14374 Contra Costa Sacramento-San Joaquin River Delta. On Dow Chemical property at Pittsburg. Adjacent to shore of San Joaquin River. 2 Comment
  UC2029022  Lepidium coronopus Barbara Ertter 1999-7-17 16762 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, Rifle Range Road. Comment
  JEPS53610  Lepidium dictyotum J. Burtt Davy May 1898 Contra Costa Byron Springs Mount Diablo Region Comment
  CDA24906  Lepidium dictyotum Jim Jokerst, Barbara Ertter, Dave Magney 1989-4-5 3080 Contra Costa Alkali sink west and adjacent of Clifton Court Forebay, east of Byron Highway and Italian Slough. Comment
  RSA537493  Lepidium dictyotum Barbara Ertter, Jim Jokerst 1989-4-5 8142 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton; near sea level 0 Comment
  CHSC67912  Lepidium dictyotum var. acutidens James D. Jokerst 1989-3-29 3074 Contra Costa Byron Hot Springs area NE of Livermore, adjacent to pipeline on terrace S of ephemeral creek. Comment
  CAS-BOT-BC89715  Lepidium latifolium Walter Knight; Joanne Dean 1978-8-14 3170 Contra Costa Brown Island. Comment
  CDA18028  Lepidium latifolium B. Case 1999-7-8 PDR 004804 Contra Costa Grayson Creek, Pacheco. 0 Comment
  POM300576  Lepidium latipes Mary L. Bowerman 1933-4-15 1846 Contra Costa Canyon S of Arroyo del Cerro 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
  CAS-BOT-BC89892  Lepidium nitidum Alice Eastwood 1914-3-14 3775 Contra Costa Byron Springs. Comment
  CAS-BOT-BC89900  Lepidium nitidum Volney Rattan 1879-1-1 s.n. Contra Costa Antioch. Comment
  UC10671  Lepidium nitidum J. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  UCD77809  Lepidium nitidum Robert E. Preston 1997-3-8 1016 Contra Costa Black Diamond Mines Regional Park, along Stewartsville Trail 91 Comment
  POM204087  Lepidium nitidum L. S. Rose 1933-3-29 33045 Contra Costa Pittsburg Comment
  SEINET12006190  Lepidium oblongum H. M. Hall 1901-1 1741 Contra Costa Mt. Diablo, region of San Francisco Bay Comment
  POM204090  Lepidium oxycarpum L. S. Rose 1933-3-29 33041 Contra Costa Nortonville. 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
  UC10601  Lepidium strictum F. T. Bioletti 1892-1 Contra Costa Byron Comment
  UC1795745  Lepidium strictum Barbara Ertter, Mary Bowerman et al. 1995-5-7 14051 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, middle of dirt road below houses, edge of blue oak. Comment
  CAS-BOT-BC273931  Leptochloa fusca subsp. fascicularis John Thomas Howell; Gordon H. True 1972-6-29 48944 Contra Costa Along Byron Hot Springs Road where water has stood, southeast of Byron Comment
  UC2027775  Leptosiphon ciliatus Barbara Ertter with Holly Forbes 1997-4-20 15565 Contra Costa North base of Mount Diablo at NE base of Eagle Ridge. Comment
  POM65854  Leptosiphon liniflorus C. F. Baker 1903-4-27 2864 Contra Costa Byron. Comment
  UC2027920  Leptosiphon pygmaeus subsp. continentalis Barbara Ertter, Dan Norris 2001-4-8 17582 Contra Costa Lime Ridge Open Space east of Walnut Creek, high part of main ridge. Comment
  UC221462  Lessingia pectinata var. tenuipes Dr. Edward Palmer Aug 17 1892-Aug 20 1892 2678 Contra Costa Byron Hot Springs Comment
  UC761928  Lessingia pectinata var. tenuipes R. F. Hoover 1940-11-23 4696 Contra Costa 2 mi w Byron Comment
  UC1818997  Leymus Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14629 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
  CDA39047  Leymus X multiflorus D. G. Kelch 2011-6-5 11 .576 Contra Costa Carquinez Strait; South of Crockett, south of Cummings Skyway. Comment
  UC686616 Image available Leymus X multiflorus Frank W. Gould 1941-7-4 1304 Contra Costa near San Francisco Bay; Albany; near San Francisco Bay at Albany, Contra Costa Co. Comment
  UC691184  Leymus X multiflorus Mary L. Bowerman 1938-11-19 3734 Contra Costa Mitchell Creek tributary s Black Point; Mount Diablo 259 Comment
  CDA39657  Leymus X multiflorus Slate 2013-5-22 PDR# 1641699 Contra Costa Concord; Walnut Creek channel upstream of Willow Pass Rd. 0 Comment
  CAS-BOT-BC272211  Leymus triticoides A. A. Beetle 1941-6-24 1751 Contra Costa Pt. Richmond on San Francisco Bay Comment
  JEPS99987  Leymus triticoides S. O'Neil 2003-7-27 SEO 44 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA108362  Leymus triticoides Frank W. Gould 1941-5-6 1286 Contra Costa 2.3 miles from Walnut Creek on Danville road. Comment
  SEINET3840826  Leymus triticoides Unknown 2006-6-23 6 .321 Contra Costa West Valona, West of the Zampa Bridge above San Pablo avenue, along a small stream draining north into the Western end of the Carquinez Strait 91 Comment
  UC692427  Leymus triticoides Mary L. Bowerman 1935-6-28 3159 Contra Costa Inner Black Hills w meridian (flat on n side); Mount Diablo Comment
  UC1789153  Ligustrum Barbara Ertter, Joanne Kerbabaz and Jeff Greenhouse 2000-10-26 17547 Contra Costa Mount Diablo State Park, a single sterile young shrub at a permanent spring-fed pond (''Secret Pond'') in angle of Stage Road and lower Barbeque Road, sahded by Aesculus. Comment
  UC1055944  Lilaea scilloides Francia Chisaki, Peter Kamb, and S. Galen Smith 1951-4-14 1979 Contra Costa 7 mi n Walnut Creek (e of Highway 21, 0.2 mi s of intersection with Highway 4) Comment
  UC692005  Lilium pardalinum Mary L. Bowerman 1935-6-21 3144 Contra Costa e fork Arroyo del Cerro; Mount Diablo 289 Comment
  UC692007  Lilium pardalinum Mary L. Bowerman 1935-6-21 3144 Contra Costa e fork Arroyo del Cerro; Mount Diablo 289 Comment
  JEPS21834  Limnanthes douglasii subsp. rosea Bryce G. Decker 1958-4-13 39 Contra Costa junction of Holey Road and Byron Highway Comment
  JEPS25359  Limnanthes douglasii subsp. rosea Rimo Bacigalupi with Paul C. Hutchison and John Weiler 1959-3-19 6971 Contra Costa junction of Holey Road and Byron Road (about 2.9 mi se of Byron) 4 Comment
  UC1563678  Limonium californicum Barbara Ertter with Elizabeth Neese 1988-10-15 7981 Contra Costa El Cerrito; marsh w of I-580, w side along Rydin Road n of Central Ave. Comment
  JEPS108386  Linanthus ambiguus David Gowen 2005-4-25 264 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
  UC400968  Linanthus ambiguus J. G. Lemmon Contra Costa Mt. Diablo Comment
  UC880306  Linanthus androsaceus Lewis S. Rose 1940-4-30 40253 Contra Costa 8 mi se Clayton; Marsh Creek 30 Comment
  UC908952  Linanthus androsaceus Herbert L. Mason 1928-4-29 4441 Contra Costa Sycamore Canyon Mount Diablo (s slope of Mt. Diablo) Comment
  UC727781  Linanthus bicolor Milo S. Baker 1946-4-20 11332 Contra Costa s of Clayton (summit) Comment
  JEPS108358  Linanthus bolanderi David Gowen 2005-4-11 228 Contra Costa Mt. Diablo State Park. Below Devils Elbow in the upper part of Rhine Canyon drainage. Comment
  SEINET8729347 Image available Linanthus liniflorus Herbert L. Mason 1952-1 14265 Contra Costa 3.5 miles south of Eyron Comment
  UC125233  Linanthus pygmaeus subsp. continentalis T. S. Brandegee Apr 1889 Contra Costa Antioch Comment
  UC691638  Linanthus pygmaeus subsp. continentalis Mary L. Bowerman 1933-5-25 2178 Contra Costa w end of s-face Oyster Ridge 396 Comment
  UC964003  Linanthus pygmaeus subsp. continentalis R. F. Hoover 1939-4-13 4020 Contra Costa w branch Head of Markley Canyon Comment
  JEPS116789  Linanthus pygmaeus subsp. continentalis David Gowen 2006-6-14 611 Contra Costa Morgan Territory Regional Park; At the NW end of Eagle Trail. Comment
  UC1819058  Linum bienne Barbara Ertter, Rich Rabeler 1994-6-6 12818 Contra Costa Point Isabel in south Richmond; black cinders on old railroad bed north of Costco; landfill. Comment
  UCR248236  Linum bienne Dean Kelch 2011-5-28 11 .537 Contra Costa Carquinez Strait Region, west of Martinez, north of end of Hillside Place 183 Comment
  JEPS116495  Linum grandiflorum J. Greenhouse with John Game 2008-5-26 5127 Contra Costa Lime Ridge Open Space, Paradise Canyon Trail above subdivision Comment
  JEPS112262  Lithophragma affine A. G. Murdock 2004-4-30 265 Contra Costa Vaca Canyon Comment
  JEPS99949  Lithophragma affine G. Smick 2003-4-3 GAS 67 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC692421  Lithophragma affine Mary L. Bowerman 1932-3-27 1135 Contra Costa below Mitchell Rock Comment
  JEPS108396  Lithophragma affine David Gowen 2005-4-25 265 Contra Costa Mt. Diablo State Park. Prospectors Gap Rd., just east of Prospectors Gap. Comment
  UC11926  Lithophragma cymbalaria J. Burtt Davy 1895-4-7 906 Contra Costa Antioch Comment
  CHSC107516  Lithophragma heterophyllum D. G. Kelch 2006-5-4 06 .124 Contra Costa Coast Range: Vaca Canyon, on North facing road cut/bank along Alhambra Valley Road. 162 Comment
  UC32010  Logfia filaginoides Harley P. Chandler 1901-4-5 963 Contra Costa Mt. Diablo 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
  UC691198  Lolium temulentum Mary L. Bowerman 1935-5-16 3006 Contra Costa e side of North Peak Mount Diablo (behind Gabriel-Hinks'); , (e side of North Peak) 289 Comment
  UC659027  Lomatium caruifolium var. caruifolium Mildred E. Mathias 1937-4-11 1163 Contra Costa 3 mi. s. Byron Comment
  UC140639  Lomatium macrocarpum Katharine Curran May 1885 Contra Costa Antioch Comment
  POM301010  Lomatium macrocarpum Mary L. Bowerman 1931-4-25 762 Contra Costa Mt. Diablo, near junction of south and west roads Comment
  JEPS17533  Lomatium nudicaule W. L. Jepson May 22 1891-May 23 1891 14314 Contra Costa Mt. Diablo Comment
  UCD102387  Lomatium nudicaule Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. North Peak Road to North Peak. 920 Comment
  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
  UC1123066  Lomatium utriculatum C. M. Belshaw 1936-5-12 2103 Contra Costa 2 mi ESE of Mt. Diablo summit 335 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
  SEINET12266795  Lonicera hispidula var. californica M. T. Doutt 1930-1 86 Contra Costa Marsh Creek Comment
  JEPS12841  Lonicera hispidula var. vacillans W. L. Jepson May 23 1891-May 24 1891 Contra Costa Mt. Diablo Comment
  JEPS21911  Lonicera hispidula var. vacillans L. T. Dempster 1958-11-6 1179 Contra Costa at 15 El Toyonal Orinda Comment
  RSA666356  Lonicera japonica Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10694 Contra Costa Browns Island N of Pittsburg near confluence of Sacramento and San Joaquin rivers opposite Pittsburg Marina; west end of island. Comment
  CDA15230  Lotus corniculatus G. F. Hrusa, D. Crowe 1998-5-8 14359 Contra Costa Sacramento Delta; Adjacent to Dow Chemical plant at Pittsburg. Comment
  UC1819023  Lotus corniculatus Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14637 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
  UC692569  Lotus crassifolius var. crassifolius Mary L. Bowerman 1931-5-16 862 Contra Costa Meridian Peak summit Mount Diablo Comment
  UC15621  Lotus humistratus W. H. Brewer 1862-5-12 1073 Contra Costa Monte Diablo Comment
  UC692532  Lotus humistratus Mary L. Bowerman 1933-5-25 2177 Contra Costa w end of s-face Oyster Ridge; Mount Diablo 396 Comment
  UC864815  Lotus humistratus Lewis S. Rose 1941-5-15 41234 Contra Costa Mt. Diablo, w slope Mt. Diablo 396 Comment
  JEPS55504  Lotus junceus A. M. Ottley 1920-6-5 777 Contra Costa Moraga Ridge Comment
  UC555416  Lotus micranthus H. L. Mason 1928-4-29 4428 Contra Costa Sycamore Canyon, s slope of Mount Diablo 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
  UC692538  Lotus scoparius Mary L. Bowerman 1932-9-24 1589 Contra Costa ridge running w from Twin Peaks; Mount Diablo 335 Comment
  UC692571  Lotus scoparius Mary L. Bowerman 1930-6-5 255 Contra Costa 5.8 mi from entrance West road (=North Road); Mount Diablo Comment
  UC33560  Lotus strigosus Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  JEPS108357  Lotus strigosus David Gowen, Abby Moore, Mike Park 2005-4-10 226 Contra Costa Lime Ridge Open Space. Growing on sandy trail in NE area of park. Comment
  PASA1117  Lotus subpinnatus Annetta Carter 1929-3-31 Contra Costa Near Clayton Comment
  JEPS21976  Lotus tenuis G. Thomas Robbins 1958-5-24 3837 Contra Costa at corner of S. 28th St. and Hoffman Blvd.; Richmond Comment
  UC692266  Lotus wrangelianus Mary L. Bowerman 1932-4-27 1393 Contra Costa canyon w of Riggs Canyon (s-face of Oyster Ridge); Mount Diablo, Oyster Ridge 335 Comment
  UC201036  Lupinus Katharine Brandegee 1918-6-5 Contra Costa Richmond Annex Comment
  UC727201  Lupinus A. A. Heller 1942-4-20 16428 Contra Costa Antioch just e of the Boat School Antioch High School (not far from the San Joaquin River); nor far from the San Joaquin River Comment
  CAS-BOT-BC201366  Lupinus albifrons var. albifrons Alice Eastwood; John Thomas Howell 1936-4-19 2146 Contra Costa Antioch Comment
  CAS-BOT-BC201367  Lupinus albifrons var. albifrons Peter Rubtzoff 1954-9-14 1761 Contra Costa Along lower San Joaquin River, east of Antioch Comment
  CAS-BOT-BC201368  Lupinus albifrons var. albifrons Alice Eastwood 1921-4-18 10282 Contra Costa Antioch 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
  CAS-BOT-BC201372  Lupinus albifrons var. albifrons Paul F. Covel 1938-6-26 s.n. Contra Costa Las Trampas Canyon - behind St. Mary's Comment
  CAS-BOT-BC201374  Lupinus albifrons var. albifrons Charles Piper Smith 1922-5-20 3530 Contra Costa Lafayette - trolly line Comment
  RSA697989  Lupinus albifrons var. albifrons J. Vlahos 1934-8-1 s.n. Contra Costa Contra Costa Hills Comment
  UC1607626  Lupinus albifrons var. collinus Barbara Ertter 1991-5-5 9772 Contra Costa halfway up E ridge Rose Hill (above cemetary, Black Diamond Mines Regional Preserve s of Pittsburg); Black Diamond Mines Regional Preserve, Rose Hill 365 Comment
  UC1129392  Lupinus bicolor R. W. Lundh 1933-3-25 220 Contra Costa 1 mi w and 1/2 mi n Lafayette Acalanes Grant; Concord Quad. 213 Comment
  UCD107174  Lupinus bicolor Morris Halperin 1929-4-21 s.n. Contra Costa St. Mary's College Campus. Comment
  UC2028034  Lupinus bicolor Barbara Ertter 1998-4-4 15944 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, SE of Indian Valley School. Comment
  RSA32778  Lupinus bicolor subsp. tridentatus A. A. Heller 1938-4-9 15019 Contra Costa Near the west end of the Antioch bridge. Comment
  CAS-BOT-BC187863  Lupinus chamissonis Alice Eastwood 1914-2-24 3735 Contra Costa Antioch Comment
  SEINET10937078  Lupinus densiflorus Frenkel 1964-4-18 FRENKEL 425 Contra Costa 2.1 mi. I of danville on tassajara rd. 130 Comment
  UCD107762  Lupinus formosus P. B. Kennedy 1916-5-11 12 Contra Costa Grand View Terrace; Richmond District. Comment
  UC1613951  Lupinus formosus var. formosus Charles M. Belshaw 1935-6-24 1033 Contra Costa Sobrante Hills Comment
  SD103748  Lupinus formosus var. formosus Walter Knight, Irja Knight 1979-5-31 3396 Contra Costa Pasture at southeast corner Appian Way and I-80, City of Pinole. Comment
  RSA0064357  Lupinus latifolius Daisie Huang 2006-7-18 06071805 Contra Costa Ppinehurst Road above Moraga Road. 156 Comment
  JEPS111540  Lupinus microcarpus var. microcarpus Dean G. Kelch and Andrew G. Murdock 2005-5-6 05 .224 Contra Costa Franklin Canyon; County: Contra Costa; East of Christie Road. South of Route 4. Franklin Canyon, Contra Costa, CA. Comment
  UC201030  Lupinus microcarpus var. microcarpus Katharine Brandegee July, 1918 Contra Costa El Dorado St. Richmond Annex (Richmond Annex); , El Dorado St. Comment
  UC33552  Lupinus microcarpus var. microcarpus Chesnut and Drew 1889-4-17 Contra Costa Clayton Comment
  UC692260  Lupinus microcarpus var. microcarpus Mary L. Bowerman 1933-4-15 1860 Contra Costa second ridge se Arroyo del Cerro Arroyo del Cerro, Mount Diablo; Mount Diablo 396 Comment
  UCD108866  Lupinus microcarpus var. microcarpus P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  JEPS78983  Lupinus microcarpus var. microcarpus Edward Lee with Annetta Carter 1935-6-13 1430 Contra Costa Panhandle Boulevard south Richmond; , Panhandle Boulevard Comment
  UC2028071  Lupinus nanus Barbara Ertter, Tony Morosco 1998-4-12 16002 a Contra Costa Base of Mount Olympia on north side of Mount Diablo, NE of Olympia Trail. Comment
  UCD109246  Lupinus nanus L. S. Smith 1916-5-10 s.n. Contra Costa Grand View Terrace - m. Richmond. Comment
  CHSC23154  Lupinus polycarpus Robert A. Schlising 1962-4-7 2149 Contra Costa Coastal Range. Roadside near Antioch Reservoir. Comment
  SEINET10486145  Lupinus polycarpus Frenkel 1964-3-27 FRENKEL 409 Contra Costa On giant road, .4 mi n of atsf rr crossing, richmond. 15 Comment
  UC1300901  Lupinus succulentus Helen K. Sharsmith 1962-4-7 4916 Contra Costa Appian Way near El Sobrante (San Francisco Bay Region); San Francisco Bay region, Appian Way nr El Sobrante 121 Comment
  UCD109637  Lupinus succulentus Helen K. Sharsmith 1962-4-17 4937 Contra Costa Vicinity of Grizzly Peak, Berkeley Hills. 426 Comment
  JEPS48958  Luzula macrantha Elsa Kraeger 1926-3-7 Contra Costa South slope Mount Diablo Comment
  RSA0014832  Lythrum californicum Mary L. Bowerman 1933-8-26 2416 Contra Costa Mount Diablo: Spring at top of south road. Comment
  UCD102995  Lythrum californicum Herbert L. Mason 1955-7-14 14636 Contra Costa 1/2 mile E of Antioch Bridge. Comment
  CDA20143  Lythrum salicaria R. M. Case 2003-6-13 PDR 1406286 Contra Costa San Francisco Bay Area; Walnut Creek Flood Channel, S of Waterfront Rd, N of Hwy 4. 0 Comment
  UC1619945  Lythrum tribracteatum Barbara Ertter, Brad Olson 1991-9-28 10834 Contra Costa San Pablo Reservoir between Orinda and El Sobrante; dried mud flats at S end of reservoir 91 Comment
  UC5897  Maclura pomifera W. G. Klee June 1880 Contra Costa road to Walnut Creek Comment
  UC697170  Madia elegans Mary L. Bowerman 1936-9-10 3542 Contra Costa Donner Canyon Mount Diablo (by streamlet) 335 Comment
  UC1952810  Madia elegans Barbara Ertter with Christopher Davidson 2010-9-1 20569 Contra Costa lower Donner Canyon on north base of Mount Diablo Comment
  UC89384  Madia exigua Katharine Brandegee June 1892 Contra Costa Port Costa Comment
  CAS-BOT-BC344325  Madia exigua Joseph Andorfer Ewan 1936-5-24 9693 Contra Costa West slope Bald Peak Comment
  CDA34201  Madia gracilis D. G. Kelch, D. A. Weinstein 2011-5-28 11 .54 Contra Costa Carquinez Strait Region.; W of Martinez. N of end of Hillside Pl. Comment
  JEPS111708  Madia gracilis D. G. Kelch 2004-5-7 04 .184 Contra Costa Ca ada del Cierbo Ca ada del Cierbo 40 Comment
  POM267781  Madia gracilis subsp. gracilis D. D. Keck 1941-6-5 5309 Contra Costa Berkeley Hills, Fish Creek Road 1/4 mile W of E portal of Broadway Tunnel. 335 Comment
  CAS-BOT-BC324490  Madia radiata Brandegee 1889-4-1 s.n. Contra Costa Antioch Comment
  JEPS7400  Madia radiata R. F. Hoover 1938-3-25 2898 Contra Costa Lone Tree Valley Comment
  POM54304  Madia radiata Katherine Brandegee 1908-4-9 s.n. Contra Costa Borders of cultivated fields near Antioch Comment
  SD8607  Madia radiata Brandegee Apr 1889 Contra Costa Antioch Comment
Read comments Jan 9 2007
  UC112946  Madia radiata Mrs. K. Brandegee 1908-4-9 50 Contra Costa near Antioch Comment
  UC830900  Madia radiata A. A. Heller 1938-4-9 15015 Contra Costa 3 mi sw Antioch Comment
Read comments Aug 21 2017
  CAS-BOT-BC343580  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
  UC1861832  Madia sativa Barbara Ertter with Richard Rabeler 1994-6-18 12838 Contra Costa Pt. Pinole Regional Shoreline at north end of Richmond; northeast corner of park, near jct. Marsh Trail and Cook's Point Trail. Comment
  UC2027972  Madia sativa Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15664 Contra Costa Point Richmond, crest of road. Comment
  CHSC117387  Malacothamnus fasciculatus Barbara Ertter; Tony Morosco 1998-9-18 16417 Contra Costa West edge Lime Ridgde Open Space northwest of Mount Diablo, chaparral at base of hills. 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
  UC692621  Malacothamnus hallii Mary L. Bowerman 1938-11-12 3732 Contra Costa Mount Diablo 289 Comment
  SEINET10853324 Image available Malacothamnus hallii John Thomas Howell 1931-5-12 Howell 6470 Contra Costa Nortonville. Comment
  UC691434  Malacothrix clevelandii Mary L. Bowerman 1932-5-6 1415 Contra Costa floor Mitchell Canyon (Mount Diablo); , Mitchell Canyon Floor 213 Comment
  UC691438  Malacothrix clevelandii Mary L. Bowerman 1933-5-18 2134 Contra Costa Mount Diablo Comment
  UC133355  Malacothrix floccifera Alice Eastwood 1897-5-31 Contra Costa Mount Diablo Comment
  POM53214  Malacothrix floccifera C. F. Baker 1903-4-28 2948 Contra Costa Marsh Creek, Mt. Diablo. Comment
  CHSC33984  Malva nicaeensis Willis Ball 1975-4-19 525 Contra Costa Contra Loma Regional Park. In area #1 ca. 40 yds sw of restroom facility at s end of reservoir. In picnic area. 36 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
  CAS-BOT-BC8186  Malvastrum howellii John Thomas Howell 1931-5-12 6470 Contra Costa Nortonville Comment
  RSA0004205  Malvastrum howellii J. T. Howell 1931-5-12 6470 Contra Costa Nortonville Comment
  UCD150880  Malvella leprosa James A. Neilson Jr. 1972-11-2 3618 Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 Comment
  UCD151068  Malvella leprosa James A. Neilson Jr. 1972-10-22 3622 Contra Costa Contra Costa County. Lower Pine Creek. (Elevation estimated using Google Earth by label maker.) 15 Comment
  OBI12334  Malvella leprosa Robert F. Hoover 1966-8-31 9944 Contra Costa 1.5 mi E of Danville on Tassajara rd Comment
  RSA22265  Malvella leprosa L. S. Rose 1938-10-28 38310 Contra Costa Byron 3 Comment
  UC2028362  Malvella leprosa Barbara Ertter with Tony Morosco 1998-7-11 16363 Contra Costa North base of Mount Diablo, near small pond on north side of Bruce Lee Road east of Mitchell Canyon staging area Comment
  RSA724228  Marah fabacea R. R. Halse 1988-2-20 3540 Contra Costa Along Marsh Creek Road, in the Dark Canyon area, 4 miles W of its junction with Deer Valley Road. 156 Comment
  UC1949100  Marah fabacea Barbara Ertter 1991-6-1 10076 Contra Costa Las Trampas Regional Wilderness in hills W of Danville, steep E-facing slope at N end Rocky Ridge Trail Comment
  CHSC46895  Marah oregana R. A. Schlising 1964-6-5 2715 Contra Costa Oakland Hills, along Grizzly Peak Blvd. Comment
Read comments Jun 3 2014
  JEPS37068  Matricaria discoidea W. L. Jepson 1922-5-18 9647 Contra Costa Berkeley Comment
  CAS-BOT-BC348049  Matricaria discoidea Mary L. Bowerman 1931-4-4 653 Contra Costa Mount Diablo. North Road 4.5 miles from North Gate Comment
  HSC6009  Matricaria discoidea D. A. Shally 1965-4-18 36 Contra Costa Canyon 1 mi. N of Canyon Store Comment
  UC2036958 Image available Meconella californica Mary L. Bowerman 1946-3-10 4084 Contra Costa Northerly face of Shell Ridge. East of Brown's house (where [m.c.?] lived). Comment
  UC2028593  Medicago arabica Barbara Ertter with Dorothy Frantz 2001-5-10 17642 Contra Costa Pine Canyon on west side of Mount Diablo, junction of Stage Road and Sunset Trail Comment
  JEPS112333  Medicago sativa Dean G. Kelch and Andrew G. Murdock 2004-5-21 04 .219 Contra Costa Cummings Skyway; County: Contra Coasta; Exit from I-80 to Cummings Skyway. Comment
  HSC24000  Medicago sativa Tim Baroni 1971-10-16 199 Contra Costa Pinole, Pinole Valley Rd. 100 Yds. E of the entrance to Wright Ave. Comment
  UC691188  Melica californica Mary L. Bowerman 1933-5-18 2124 Contra Costa Blackberry Spring; Mount Diablo Comment
  UC1153843  Melica imperfecta Beecher Crampton 1956-5-14 3405 Contra Costa s boundary Mt. Diablo State Park Comment
  UC585495  Melica imperfecta Virginia E. Long 1933-6-14 221 a Contra Costa sse along first w fork Curry Creek trail; Mt. Diablo Comment
  CAS-BOT-BC281433  Melica imperfecta Mary L. Bowerman 1931-4-18 714 Contra Costa Mount Diablo. Sycamore Canyon: moist bank where the chaparral does not extend down to the trail 335 Comment
  CAS-BOT-BC262506  Melica torreyana John Thomas Howell 1933-5-14 11257 Contra Costa Hills east of St. Mary's College Comment
  JEPS99593  Melica torreyana Mary Bowerman 1994-4-17 Contra Costa Mount Diablo, Donner Canyon by fire road near junction 1st trail to Back Canyon. 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
  SEINET3383312 Image available Melica torreyana Barbara Ertter, John Little 1989-1 8111 Contra Costa Hillside Park in El Cerrito, +/- undisturbed vegetation on steep W facing slope Comment
  CAS-BOT-BC262508  Melica torreyana Mary L. Bowerman 1935-5-18 3024 Contra Costa Mount Diablo. Northwest-facing slope across the road from, and a little east of, the parking area: Woodland 1066 Comment
  UC1950128  Melica torreyana Barbara Ertter with John Little 1989-4-2 8111 Contra Costa Hillside Park in El Cerrito, on steep W-facing slope Comment
  CHSC116633  Melilotus indicus Lowell Ahart; Josephine Guardino 2016-4-19 20801 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Below the high water line of Los Vaqueros Reservoir, 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  JEPS112336  Melilotus indicus Dean G. Kelch and Andrew G. Murdock 2004-5-9 04 .207 Contra Costa Upper Edwards Canyon, Crockett, CA Contra Costa County, CA above Crockett Blvd. Comment
  JEPS127091  Melilotus indicus Lowell Ahart, Josephine Guardino 2016-4-19 20801 Contra Costa 1.4 miles northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  JEPS99542  Melilotus indicus Mary L. Bowerman 1995-6-4 Contra Costa Mount Diablo, North Gate Rd. Comment
  UC651294  Melilotus indicus Ira L. Wiggins 1930-4-18 4599 Contra Costa Jersey Island Comment
  CDA1105  Melissa officinalis D. G. Kelch, A. G. Murdock 2004-7-9 4 .293 Contra Costa Carquinez Strait; Crockett; Elkhorn Creek. Comment
  UC634868  Melissa officinalis H. L. Mason 1925-9-17 2235 Contra Costa stream in Redwood Canyon Redwood Canyon Comment
  RSA691929  Mentha spicata Barbara Ertter 1991-8-18 10718 Contra Costa Browns Island N of Pittsburg near confluence of Sacramento and San Joaquin rivers, west-most point opposite Pittsburg marina Comment
  UC692698  Mentzelia dispersa Mary L. Bowerman 1930-6-10 305 Contra Costa Mount Diablo, Summit Comment
  JEPS99537  Mentzelia micrantha Mary L. Bowerman 1978-5-26 Contra Costa Mount Diablo, N of lower summit parking lot. Comment
  UC692627  Mentzelia micrantha Mary L. Bowerman 1934-4-21 2534 Contra Costa Muir Area Mount Diablo Comment
  SEINET200754  Microcala quadrangularis J. P Tracy 1900-3-24 608 Contra Costa Near Stege 3 Comment
  UCSC008283  Micropus amphibolus Randall Morgan 1989-5-5 1587 Contra Costa Mt. Diablo near mouth of Mitchell Canyon Comment
  CDA8377  Micropus californicus var. californicus D. G. Kelch, A. G. Murdock 2004-4-3 4 .155 Contra Costa Carquinez Strait Region; Mt. Wanda - Martinez Comment
  UC35591  Micropus californicus var. californicus W. H. Brewer 1862-5-29 1180 Contra Costa Marsh's Ranch; Marsh's Ranch, Camp 71, Contra Costa Co. Comment
  CAS-BOT-BC348366  Micropus californicus var. californicus Brandegee No date on label s.n. Contra Costa Antioch Comment
  CAS-BOT-BC348788  Microseris campestris Niall McCarten; V. I. Dains 1986-1-1 03231522 41 Contra Costa Ecos East Contra Costa County. W of Camino Diablo & Kellogg Creek Comment
  SJSU10601  Microseris douglasii C. O. Dudley 1966-5-8 Contra Costa Briones Hills, Reliez Valley, Lafayette 152 Comment
  UC1070040  Microseris douglasii subsp. douglasii C. M. Belshaw 1936-5-11 2094 Contra Costa 2 mi ene Danville; Mt. Diablo Quad. 243 Comment
  UC468893  Microseris douglasii subsp. douglasii M. K. Curran May, 1886 Contra Costa Antioch Comment
  CAS-BOT-BC348896  Microseris douglasii subsp. douglasii Mrs. E. C. Sutliffe 1922-5-1 s.n. Contra Costa Richmond Comment
  CAS-BOT-BC348897  Microseris douglasii subsp. douglasii R. E. Frenkel 1964-4-29 467 Contra Costa 0.25 mile E. of Tassajara Road on Highland Road 195 Comment
  RSA0027886  Microseris douglasii subsp. douglasii Barbara Ertter, Stu Garrett 1997-3-29 15527 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  UC2027852  Microseris douglasii subsp. douglasii Barbara Ertter with Stu Garrett 1997-3-29 15527 a Contra Costa West side Mount Diablo, Burma Road on Long Ridge Comment
  CAS-BOT-BC349094  Microseris douglasii subsp. tenella Ira L. Wiggins 1930-4-17 4560 A Contra Costa 1 mi. E. of Mountain House, on road to Byron Comment
  POM301001  Microseris heterocarpa Mary L. Bowerman 1935-4-19 2849 Contra Costa Mount Diablo: West road 3.5 miles from entrance Comment
  UC691443  Microseris sylvatica Mary L. Bowerman 1935-5-22 3053 Contra Costa canyon at n end Eagle Point ridge (which heads into saddle w of Twin Peaks, near head of canyon); Mount Diablo Comment
  UC2070514  Microseris sylvatica Barbara Ertter with David Gowen and Michael Park 2004-4-13 18357 Contra Costa Black Diamond Mines Regional Park south of Pittsburg, upper part of N-facing slope below Black Diamond Trail, opposite Rose Hill cemetery. Comment
  RSA469886  Microsteris gracilis subsp. gracilis H. de Forest 1930-4-6 s.n. Contra Costa [No locality information provided] Comment
  UC1051312  Mimulus aurantiacus N. Floy Bracelin 1941-6-22 1415 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  JEPS78823  Mimulus aurantiacus var. aurantiacus Edward Lee 1936-5-24 2165 Contra Costa 10 mi from Marsh Creek Road; Morgan Territory Comment
  UC26691  Mimulus aurantiacus var. aurantiacus Ivar Tidestrom June 1895 Contra Costa Crockett Comment
  POM5025  Mimulus cardinalis M. Alice King 1896-07 257 Contra Costa San Pablo Comment
  UC27116  Mimulus douglasii H. M. Hall 1901-3-8 1632 Contra Costa Bollinger Creek San Francisco Bay Region Comment
  POM204480  Mimulus guttatus J. T. Howell 1933-5-14 11242 Contra Costa St. Mary's College Comment
  UC26995  Mimulus nasutus J. Burtt Davy 1893-5-13 214 Contra Costa Claremont Canyon to Fish Ranch fide fieldbook Comment
  UC691740  Mimulus nasutus Mary L. Bowerman 1933-4-9 1834 Contra Costa w fork Dannor Canyon; Mount Diablo 243 Comment
  UC691650  Mimulus rattanii Mary L. Bowerman 1933-5-31 2222 Contra Costa Juniper Camp Mount Diablo Comment
  UC2070482  Minuartia douglasii Gregg Weber 2004-3-23 Contra Costa Briones Reservoir a little east of Hampton Road. Comment
  UC692295  Minuartia douglasii Mary L. Bowerman 1931-4-4 661 Contra Costa Turtle Rock Mount Diablo 447 Comment
  UC8130  Minuartia douglasii W. H. Brewer 1862-5-5 1048 Contra Costa near Walnut Creek (sw of Camp 69) Comment
  UC2027714  Minuartia douglasii Barbara Ertter with Stu Garrett 1997-3-29 15525 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  UC1818898  Minuartia pusilla Barbara Ertter, Mary Bowerman et al. 1995-5-7 14064 Contra Costa Three-Springs Trail on NE side of Mount Diablo SE of Clayton, small serpentine patch at road junction Comment
  CAS-BOT-BC384001  Mirabilis jalapa D. E. Breedlove 1969-10-18 16711 Contra Costa On Reliez Valley Road at the junction with Gloria Terrace; Lafayette 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
  RSA0034457  Monardella villosa subsp. subserrata Katherine Brandegee 1907-7-4 s.n. Contra Costa Martinez. Comment
  UC104641  Monardella villosa subsp. villosa Katharine Brandegee June 1905 Contra Costa Martinez Comment
  UC204205  Monardella villosa subsp. villosa A. D. E. Elmer Jul 1903 4658 Contra Costa Port Costa Comment
Read comments Apr 5 2007
  UC1076314  Monolepis nuttalliana Herbert L. Mason 1931-4-5 5891 Contra Costa Antioch sandhills Comment
  UCR64590  Monolopia gracilens L. S. Rose 1935-5-16 35166 Contra Costa Mt. Diablo Comment
  CHSC23335  Monolopia major Willis Ball 1975-3-2 474 Contra Costa Contra Loma Regional Park. In area #2. On s side of hill ca. 50 yds ne of single restroom at sw end of lake. Approximately half way up the hill. 53 Comment
  JEPS111667  Monolopia major C. Thayer, J. Dunne 1997-3-27 Contra Costa 91 Comment
  UC618925  Monolopia major R. F. Hoover 1935-3-10 311 Contra Costa Kirker Pass Comment
  CAS-BOT-BC349613  Monolopia major Brandegee No date on label s.n. Contra Costa Antioch Comment
  POM301038  Monolopia major Mary L. Bowerman 1932-4-27 1365 Contra Costa Mount Diablo: Oyster Ridge, south face: Grassy west-facing slope of ridge west of Riggs Canyon Comment
  UCD134571  Monolopia major Mrs. Saunders 1925-3-21 s.n. Contra Costa near Byron. 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
  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
  UC7869  Montia linearis H. M. Hall 1901-3-8 1626 Contra Costa Las Trampas Canyon; San Francisco Bay Region, Las Trampas Canyon Comment
  UC1101358  Myosurus Herbert L. Mason 1952-3-13 14200 A Contra Costa 3.3 mi s Byron Comment
  UC1114819  Myosurus M. K. Curran 1884-1 Contra Costa Antioch Comment
  CAS-BOT-BC83292  Myosurus minimus Herbert L. Mason 1952-4-26 14269 Contra Costa 3.5 miles south of Byron. Comment
  UC1731499  Myosurus minimus Dean William Taylor 1971-3-28 961 Contra Costa along road J4 3 mi s of Byron (at Holley Road); road J4 at Holley Road 9 Comment
  UC634927  Myosurus minimus H. L. Mason 1932-3-20 6854 Contra Costa Briones Road Comment
  UC1738119  Myosurus minimus subsp. apus D. E. Stone 1955-8-29 8 -14 Contra Costa 3 mi S of Byron (on the road to Herdlyn) Comment
  CHSC69649  Myosurus sessilis James D. Jokerst 1989-3-28 3059 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  UC1101330  Myosurus sessilis Herbert L. Mason 1952-4-14 14263 Contra Costa 3.5 mi s of Byron Comment
  UC1101359  Myosurus sessilis Herbert L. Mason 1952-3-13 14200 Contra Costa 3.3 mi s Bryon Comment
  UC1738117  Myosurus sessilis D. E. Stone 1955-8-26 8 -2 Contra Costa 3 mi S of Byron ( on road to Herdlyn) Comment
  POM312426  Myosurus sessilis H. L. Mason 1952-4-14 14263 Contra Costa 3.5 miles S of Byron. Comment
  UCD96287  Myosurus sessilis H. L. Mason 1952-4-14 14264 Contra Costa 3.5 miles south of Byron. Comment
  POM166792  Myrica californica Jos. Burtt Davy 1898-3-24 4176 Contra Costa [Unspecified] 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
  UC2028279  Narcissus pseudonarcissus Barbara Ertter with Laura Fujii 1999-3-7 16485 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, near Alvarado Staging area at NW end of park, along hiking road. Comment
  CAS-BOT-BC259902  Nassella lepida Mary L. Bowerman 1938-6-30 3701 Contra Costa Mount Diablo. Blue Oak Flat 822 Comment
  POM301022  Nassella lepida Mary L. Bowerman 1933-5-25 2181 Contra Costa Oyster Ridge, West end of south face 396 Comment
  UC691263  Nassella lepida Mary L. Bowerman 1935-6-28 3161 Contra Costa canyon w of meridian below place where pipe crosses (s base of peak); Mount Diablo, Meridian Peak 441 Comment
  UC691272  Nassella lepida Mary L. Bowerman 1935-5-8 2976 Contra Costa spur below Pioneer Camp; Mount Diablo 731 Comment
  UC692291  Nassella lepida Mary L. Bowerman 1935-5-22 3060 Contra Costa saddle w Twin Peaks (Eagle POint Ridge); Mount Diablo 441 Comment
  UC697123  Nassella lepida Mary L. Bowerman 1935-5-1 2936 Contra Costa North Road 2 mi from North Gate (se exp.); Mount Diablo 182 Comment
  UCD87824  Nassella lepida Beecher Crampton 1956-5-14 3422 Contra Costa 2 miles west of Martinez, on road to Crockett. Comment
  SEINET190914  Nassella pulchra A. A. Beetle 1941-3-28 1718 Contra Costa Orinda. Comment
  UCD87465  Nassella pulchra Beecher Crampton 1956-5-14 3403 Contra Costa Southeastern Mount Diablo, headwaters of Marsh Creek. 640 Comment
  CAS-BOT-BC230253  Navarretia cotulifolia Mrs. Brandegee No date on label s.n. Contra Costa Antioch Comment
  JEPS116938  Navarretia cotulifolia David Gowen, Mike Park, Chris Thayer 2008-4-25 869 Contra Costa Cowell Ranch. Middle of Briones Valley, east of Deer Valley Road. Comment
  JEPS111398 Image available Navarretia gowenii David Gowen 2005-5-25 390 Contra Costa Lime Ridge Open Space on N side, just SE of one of the quarries. 182 Comment
  UC2042805  Navarretia heterandra Kevin Hintsa 2000-5-28 Contra Costa Mount Diablo State Park, area across the road from Curry Point along foot trail (near road) Comment
  SEINET3163766  Navarretia mellita J. T. Howell 1938-6-30 13938 Contra Costa head of Siesta Valley Comment
  SEINET196200  Navarretia mellita Herbert L. Mason 1945-6-12 Contra Costa Ridge SE fo Mount.Diablo near summit of road up Marsh Creek. Comment
  UC691607  Navarretia mellita Mary L. Bowerman 1931-5-31 907 Contra Costa n slope of 1778 point Mount Diablo, Fossil Ridge (Rock City Ridge) Comment
  UC2042983  Navarretia pubescens Barbara Ertter with Dan Norris 1998-6-18 16216 Contra Costa Rock City area on south side of Mount Diablo, trail to Artist Point Comment
  UC691643  Navarretia pubescens Mary L. Bowerman 1930-6-5 259 Contra Costa 5.8 mi from West Road (= North Rd) entrance; Mount Diablo 457 Comment
  UCD36023  Navarretia squarrosa Beecher Crampton 1949-6-5 469 Contra Costa Contra Cost County, along Highway 40, Pinole to San Pablo, above Garrity Creek, on top of West Hills. 30 Comment
  CDA1155  Nemophila heterophylla D. G. Kelch, Andrew Murdock 2003-3-21 3 .056 Contra Costa Carquinez Strait Region; Martinez; West: Ozol Rock and Scenic Drive. Comment
  JEPS111834  Nemophila heterophylla A. G. Murdock 2004-4-30 258 Contra Costa Vaca Canyon 165 Comment
  UC24165  Nemophila heterophylla J. Burtt Davy 1895-4-7 916 Contra Costa Antioch (dry hillsides) Antioch Comment
  UC24180  Nemophila heterophylla Jos. Burtt Davy 1901-4-21 6922 Contra Costa Wildcat Canyon Comment
  RSA421271  Nemophila heterophylla H. de Forest 1930-4-6 s.n. Contra Costa [No location information on label.] Comment
  UC2028076  Nemophila heterophylla Barbara Ertter, Tony Morosco 1998-4-12 15998 Contra Costa Base of Mount Olympia on north side of Mount Diablo, talus above quarry NE of Olympia Trail. Comment
  UC67128  Nemophila heterophylla Harley P. Chandler 1900-3-23 580 Contra Costa Briones Valley , Briones Valley (Region of San Francisco Bay) Comment
  UC67129  Nemophila heterophylla Harley P. Chandler 1900-3-23 580 A Contra Costa Briones Valley , Briones Valley (Region of San Francisco Bay) Comment
  SEINET3156480  Nemophila insignis L. S. Rose 1941-3-13 41029 Contra Costa 3 miles W of Byron 30 Comment
  UC592190  Nemophila menziesii H. L. Mason 1932-3-20 6837 Contra Costa Antioch sand hills Comment
  JEPS111831  Nemophila menziesii var. menziesii D. G. Kelch 2005-3-25 05 .96 Contra Costa Fernandez Ranch Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak 115 Comment
  UCD102389  Nemophila menziesii var. menziesii Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. North Peak Road to North Peak. 890 Comment
  RSA421347  Nemophila menziesii var. menziesii Mark Morris 1929-2-22 s.n. Contra Costa Mt. Diablo. Comment
  CDA22540  Nicotiana acuminata var. multiflora Slattergren 2008-7-22 PDR# 1373540 Contra Costa Walnut Creek, 1575 North Gate Rd. 0 Comment
  POM181437  Nicotiana glauca I. L. Wiggins 1930-4-18 4604 Contra Costa East end of Jersey Island. 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
  JEPS112085  Oemleria cerasiformis D. G. Kelch 2004-3-5 04 .14 Contra Costa Sky Ranch Dutra Fire Road. Franklin Canyon 90 Comment
  RSA0025334  Oemleria cerasiformis James R. Shevock 2012-8-12 40657 Contra Costa Tilden Regional Park, East Bay Regional Park District. Along Grizzly Peak Trail about midway between the upper and lower trailheads. 448 Comment
  UC1819057  Oemleria cerasiformis Barbara Ertter, Dale Sanders, Dan Norris 1994-3-26 12334 Contra Costa Peyton Hill east of I-680 east of Martinez, south of Waterfront Road 30 Comment
  JEPS111606  Oenanthe sarmentosa D. G. Kelch 2003-8-13 03 .100 Contra Costa Martinez Marsh 0 Comment
  UC2028407  Oenanthe sarmentosa Barbara Ertter with Richard K. Brummitt 1998-5-16 16098 Contra Costa Antioch Marina, edge of brackish marsh Comment
  UC2028431  Oenothera biennis Barbara Ertter 1996-9-28 15311 Contra Costa El Cerrito Creek, Creekside Park along Cerrito Creek at base of Albany Hill. Comment
  POM355601  Oenothera deltoides subsp. cognata H. de Forest 1930-4-6 s.n. Contra Costa Near mouth of San Joaquin River Comment
  CAS-BOT-BC171590  Oenothera deltoides subsp. howellii J. H. Thomas 1949-4-19 314 Contra Costa Antioch sand dunes. Comment
  JEPS43995  Oenothera deltoides subsp. howellii Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  RSA119417  Oenothera deltoides subsp. howellii William M. Klein 1958-6-9 438 Contra Costa Sandhills N of Antoch, along the San Joaquin River Channel. 2 Comment
  RSA119418  Oenothera deltoides subsp. howellii William M. Klein 1958-6-9 434 Contra Costa Sandhills N of Antoch, along the San Joaquin River Channel. 2 Comment
  JEPS100065  Olea europaea A. Langston 2003-7-24 AL 70 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site 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
  UC2028243  Olea europaea Barbara Ertter, Tony Morosco 1998-9-18 16419 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, western quarry area. Comment
  UC27891  Orobanche bulbosa F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  UC691753  Orobanche bulbosa Mary L. Bowerman 1938-6-24 3694 Contra Costa Pioneer Road junction 853 Comment
  CAS-BOT-BC502761  Orobanche bulbosa A. D. E. Elmer 1903-6-1 5097 Contra Costa Mount Diablo Comment
  UC27861  Orobanche fasciculata W. H. Brewer 1862-6-20 1124 Contra Costa Hill North of Coal Mine, north of Mt. Diablo. Comment
  UC35324  Orobanche fasciculata F. T. Bioletti 1894-5-13 Contra Costa Mount Diablo. Comment
  UC887954  Orobanche fasciculata Lewis S. Rose 1941-5-15 41243 Contra Costa Mt. Diablo, near summit. Comment
  CAS-BOT-BC499851  Orobanche fasciculata Alice Eastwood 1915-5-30 4536 Contra Costa Mt. Diablo Comment
  UC1076297  Orobanche vallicola Herbert L. Mason 1929-9-21 5432 Contra Costa 3 mi above Clayton (Marsh Creek Road); Marsh Creek Road Comment
  SEINET3821123 Image available Orthocarpus erianthus Lewis S. Rose 1932-3-26 32115 Contra Costa Open hillsides, Nortonville. Comment
  POM181461  Orthocarpus erianthus I. L. Wiggins 1930-4-17 4571 Contra Costa 1/4 mi. S. of Byron. Comment
  SEINET12270163  Orthocarpus erianthus L. S. Rose 1932-1 32115 Contra Costa Nortonville Comment
  POM15657  Orthocarpus purpurascens C. F. Baker 1903-4-27 2794 Contra Costa Byron. Comment
  RSA407949  Orthocarpus purpurascens H. de Forest 1930-4-6 s.n. Contra Costa [No location information provided.] Comment
  RSA80286  Orthocarpus pusillus Mabel Peirson 1926-4-10 6637 Contra Costa Near the boulevard, road from San Pablo to Pinole. Comment
  JEPS111599  Osmorhiza berteroi A. G. Murdock 2004-4-30 263 Contra Costa Vaca Canyon 165 Comment
  CDA28456  Oxalis carnosa G. D. Barbe 1976-3-25 2117 Contra Costa International Succulent Institute, 10 Corte Sombrita, between Moraga and Orinda. 0 Comment
  CDA4721  Oxalis corniculata D. G. Kelch, A. G. Murdock 2005-5-23 5 .375 Contra Costa Carquinez Strait Region; Crockett - Crolona Heights. 6th Street at Lillian Street, Crockett. Comment
  UC2028103  Packera breweri Barbara Ertter with Christopher Baysdorfer 1998-5-10 16124 Contra Costa West side Lime Ridge Open Space northwest of Mount Diablo. Comment
  JEPS103101  Papaver californicum Mary L. Bowerman 1978-5-14 Contra Costa E face of Eagle Peak, ravine toward Twin Peaks from Back Creek Mount Diablo Comment
  CAS-BOT-BC253921  Parapholis incurva Alice Eastwood 1927-5-19 14436 Contra Costa Byron Springs 760 Comment
  JEPS127671  Parapholis incurva Barbara Ertter with David Gowen and Michael Park 2017-5-2 22801 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  JEPS79630  Parvisedum pentandrum Edward Lee 1979-5-6 Contra Costa Mount Diablo, Lower Mitchell Canyon Lower Mitchell Canyon; Mount Diablo, Lower Mitchell Canyon Comment
  JEPS100036  Paspalum dilatatum S. O'Neil 2003-9-16 SEO 46 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691634  Pectocarya pusilla Mary L. Bowerman 1933-5-8 2019 Contra Costa near crest Rock City Ridge (n side by rd to camp ground); Fossil Ridge Comment
  JEPS65608  Pediomelum californicum W. L. Jepson 1922-5-23 9657 Contra Costa near very summit Mt. Diablo 1170 Comment
  UC1818872  Pelargonium inquinans Barbara Ertter, Brad Olson 1994-5-7 12757 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay. Openings, especially with seepage, near open brush. Comment
  JEPS79489  Pellaea andromedifolia Edward Lee with Annetta Carter 1936-1-12 1708 Contra Costa canyon immediately s of Nortonville Comment
  RSA686787  Pellaea andromedifolia H. de Forest 1930-4-6 s.n. Contra Costa SE of Mortonville. 274 Comment
  JEPS15174  Penstemon centranthifolius C. M. Belshaw 1936-5-9 2081 Contra Costa near Plot 14 (Nortonville); Mt. Diablo Quad., Nortonville Comment
  UC41706  Penstemon centranthifolius J. Burtt Davy 1895-4-7 889 Contra Costa Antioch Comment
  SEINET12320781  Penstemon centranthifolius N. Havlik, Knight, W.; Knight, I. 1980-1 3878 Contra Costa about 1500 ft from Nortonville Pass intersection enroute to Laugher homestead, near old mining town Comment
  POM14652  Penstemon heterophyllus subsp. purdyi C. F. Baker 1903-4-28 2872 Contra Costa Marsh Creek, Mt. Diablo. Comment
  JEPS7568  Penstemon heterophyllus var. heterophyllus E. Ferguson 1919-1 Contra Costa Donner Canyon Mt. Diablo, Donner Canyon Comment
  UC1063391  Penstemon heterophyllus var. purdyi C. M. Belshaw 1936-5-15 2132 Contra Costa Briones Valley 1/2 mi w Marsh Creek (Antioch intersection); Mt. Diablo Quad., w of Marsh Creek Comment
  UC27592  Penstemon heterophyllus var. purdyi W. H. Brewer May 1862 1178 Contra Costa Marsh's Ranch Comment
  UC691800  Pentachaeta alsinoides Mary L. Bowerman 1933-3-18 1753 Contra Costa Meridian Peak Mount Diablo (a little e of the meridian) Comment
  UC697211  Pentachaeta exilis Mary L. Bowerman 1932-3-23 1132 Contra Costa grassy flat e of and overlooking Donner Canyon; Mount Diablo 304 Comment
  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
  UC691889  Perideridia californica Mary L. Bowerman 1933-4-26 1930 Contra Costa Perkins Canyon Mount Diablo (between main e ridge of North Peak and ridge to its south, by edge of stream) 518 Comment
  CDA38511  Perideridia kelloggii D. G. Kelch 2004-7-9 4 .296 Contra Costa Carquinez Strait Region; Crockett - Carquinez Scenic Drive. East of Crockett West of Bull Valley SA. Comment
  JEPS111618  Perideridia kelloggii D. G. Kelch 2004-7-9 04 .296 Contra Costa Crockett - Carquinez Scenic Drive Carq. Scenic Dr. East of Crockett West of Bull Valley SA 60 Comment
  UC1390001  Perideridia oregana T. I. Chuang, L. Constance, R. S. Mitchell, and S. Banwar 1965-7-23 6009 b Contra Costa just below Live Oak Picnic Area; Mount Diablo 487 Comment
  CAS-BOT-BC413496  Persicaria amphibia Mary L. Bowerman 1935-7-22 3185 Contra Costa Mount Diablo. Hidden Pond 518 Comment
  CAS-BOT-BC413497  Persicaria amphibia Mary L. Bowerman 1935-9-13 3339 Contra Costa Mount Diablo. Hidden Pond Comment
  UC2027897  Persicaria hydropiperoides Barbara Ertter 1996-9-19 15295 Contra Costa Antioch Marina, edge of delta. Comment
  CAS-BOT-BC413781  Persicaria lapathifolia Walter Knight 1978-8-27 3163 Contra Costa Contra Loma Regional Park 30 Comment
  UCD99472  Persicaria lapathifolia Morris Halperin 1930-5-20 s.n. Contra Costa Near Antioch. Comment
  JEPS111781  Petrorhagia dubia Christopher Thayer 1995-6-5 Contra Costa West of Pinole Peak 274 Comment
  UC24303  Phacelia breweri W. H. Brewer 1058 Contra Costa Mount Diablo; ; Mt. Diablo Comment
  UC880995  Phacelia breweri Alice Eastwood 1915-5-30 4487 Contra Costa near type locality Mt. Diablo Comment
  UC1228237  Phacelia californica Beecher Crampton 1950-4-22 533 Contra Costa along state hwy 4 in pass between Concord Valley and Pittsburg (steep hillside in roadcut) Comment
  RSA42303  Phacelia californica Lincoln Constance 1940-3-16 2524 Contra Costa Margin of San Francisco Bay, Point Richmond. 15 Comment
  CHSC23115  Phacelia ciliata Robert A. Schlising; Botany 299 class 1962-3-24 2105 Contra Costa In disturbed orchard, along Marsh Creek Road, about 4 miles 2 of Byron. Comment
  UC24322  Phacelia ciliata var. ciliata J. Burtt Davy 1895-4-7 958 Contra Costa Antioch Comment
  JEPS73329  Phacelia distans Edward Lee 1935-3-10 1297 A Contra Costa e Antioch; Antioch Sand Dunes Comment
  UC107374  Phacelia distans T. S. Brandegee May 1889 Contra Costa Antioch Comment
  RSA276851  Phacelia distans James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  UC672340  Phacelia douglasii Herbert L. Mason 1929-3-31 5161 Contra Costa dunes along river near Antioch; San Joaquin River Comment
  UC672384  Phacelia imbricata Herbert L. Mason 1928-4-26 4388 Contra Costa slopes to n of Lake Temescal; Berkeley Hills Comment
  UC107570  Phacelia imbricata T. S. Brandegee 1892-6-9 Contra Costa Port Costa Comment
  POM252665  Phacelia phacelioides H. L. Mason 1938-5-3 11749 Contra Costa Trail between Juniper Camp and Deer Flat, Mount Diablo. Comment
  POM300985  Phacelia phacelioides Mary L. Bowerman 1935-5-8 2974 Contra Costa Muir Area. 1006 Comment
  POM310991  Phacelia phacelioides Lincoln Constance, C. W. Sharsmith, H. S. Reed 1940-4-27 2574 Contra Costa North of Juniper Camp, Mount Diablo 762 Comment
  JEPS1330  Phacelia suaveolens Mary L. Bowerman 1933-5-11 2078 Contra Costa w ridge Mount Diablo, Inner Black Hills Comment
  CAS-BOT-BC154355  Phacelia suaveolens Mary L. Bowerman 1933-5-11 2078 Contra Costa Inner Black Hills: West ridge Comment
  JEPS99570  Phacelia tanacetifolia Mary Bowerman 1991-5-21 Contra Costa Comment
  RSA29642  Phacelia tanacetifolia Joseph A. Ewan 1935-3-6 9128 Contra Costa Donovan Road, Kirker Pass. 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
  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
  SEINET11680669  Phalaris lemmonii I. L. Wiggins 1930-1 4583 Contra Costa 0.25 mi S of Byron Comment
  UC50714  Phalaris minor J. Burtt Davy 1898-4-7 4258 Contra Costa Danville; Region of Mount Diablo, Danville Comment
  CAS-BOT-BC265961  Phalaris minor Mary L. Bowerman 1934-4-21 2533 Contra Costa Muir Area, Mount Diablo Comment
  CDA29524  Phalaris paradoxa D. G. Kelch, Troy MacGregor 2009-5-1 9 .28 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  UCD89358  Phalaris paradoxa Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  CAS-BOT-BC250684  Phalaris paradoxa R. E. Frenkel 1964-4-18 428 Contra Costa 2.1 miles E. of Danville on Tassajara Road 129 Comment
  JEPS99989  Phlox gracilis G. Smick 2003-3-25 GAS 80 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC963765  Phlox gracilis Herbert L. Mason 1926-3-7 2703 Contra Costa via Walnut Creek to summit to Danville to Niles Canyon; Mt. Diablo Comment
  UC592179  Pholistoma membranaceum H. L. Mason 1929-3-15 5046 Contra Costa Nortonville Comment
  JEPS111929  Phoradendron serotinum subsp. tomentosum Dean G. Kelch and Andrew G. Murdock 2003-3-21 DGK 03 .038B Contra Costa Martinez - West: Ozol Rock and Scenic Drive. Comment
  UC692038  Phoradendron villosum Mary L. Bowerman 1930-9-9 450 Contra Costa knoll by canyon running past Gabriel Hinks' Comment
  JEPS87911  Phragmites australis Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10707 Contra Costa n Pittsburg (near confluence of Sacramento and San Joaquin Rivers, opposite Pittsburg Marina, near w end of <Browns> Island); Browns Island Comment
  CAS-BOT-BC260885  Phragmites australis Doreen Smith 2003-10-25 s.n. Contra Costa Martinez shoreline Comment
  RSA0029680  Phyla nodiflora var. nodiflora Barbara Ertter, Tony Morosco 1998-9-18 16429 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, unmined land near north quarry area [subsequently developed]. 122 Comment
  UC692692  Pickeringia montana var. montana Mary L. Bowerman 1931-5-2 793 Contra Costa Eagle Point Ridge Mount Diablo (n end) Comment
  JEPS46915  Pinus attenuata W. L. Jepson 1923-4-22 9876 Contra Costa Mt. Diablo Comment
  UC692077  Pinus attenuata Mary L. Bowerman 1932-3-20 1121 Contra Costa ne fork, toward top of middle ridge Sycamore Canyon Comment
  JEPS46808  Pinus coulteri W. L. Jepson 1931-4-5 15726 Contra Costa Nortonville Comment
  JEPS47870  Pinus coulteri W. L. Jepson 1909-6-25 3117 Contra Costa Mt. Diablo Comment
  UC1061682  Pinus coulteri N. Floy Bracelin 1941-12-29 1835 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1134074  Pinus coulteri R. W. Lundh 1932-9-7 162 Contra Costa 1 mi N of Eagle Point 228 Comment
  CDA23630  Pinus radiata D. G. Kelch 2007-9-8 7 .578 Contra Costa Carquinez Strait; Pinole Valley Park. Comment
  CDA33592  Pinus radiata D. G. Kelch 2010-11-28 10 .448 Contra Costa El Sobrante. Hill above the junction of San Pablo Dam Rd and El Portal Dr (Quail Hill). Comment
  SEINET3874454 Image available Pinus radiata James K. Detling 1963-3-21 39 Contra Costa Near Glorietta School, Orinda, California.; 0 91 Comment
  CDA28753  Pinus sabiniana S. M. Blank 2007-4-7 Z 16 /07 Contra Costa Sacramento Valley; Mount Diablo State Park, Summit Road. Comment
  CAS-BOT-BC137272  Piperia elegans John Thomas Howell 1942-8-23 17862 Contra Costa Field redacted by CAS, contact the data manager for more information Comment
  CDA15838  Piptatherum miliaceum R. M. Case 1999-10-22 PDR 1206166 Contra Costa San Francisco Bay Area; near Walnut Creek. 0 Comment
  UC2028436  Piptatherum miliaceum Barbara Ertter with Chris Thayer 1996-10-25 15353 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park Comment
  RSA0029766  Piptatherum miliaceum Barbara Ertter, CNPS 1990-11-11 9709 Contra Costa Carquinez Straits Regional Park east of Crockett, near abandoned settlement near Port Costa. Comment
  CAS-BOT-BC227987  Plagiobothrys David D. Keck 1933-4-2 1995 Contra Costa Vasco Road, eastern county, N of Vasco School Comment
  JEPS60917  Plagiobothrys acanthocarpus Mary L. Bowerman 1933-3-25 1761 Contra Costa Diablo Stock Farm (Stone Valley) Canyon Mount Diablo (w fork) Comment
  UC189202  Plagiobothrys acanthocarpus Edw. L. Greene 1889-3-23 Contra Costa Byron Comment
  RSA755523  Plagiobothrys acanthocarpus Barbara Ertter 1992-3-8 10912 Contra Costa Contra Loma Regional Park; vernally wet flat northeast of bend in Frederickson Lane. Comment
  UC1950231  Plagiobothrys acanthocarpus Barbara Ertter 1992-3-8 10911 Contra Costa Contra Loma Regional Park; flat NE of bend in Frederickson Lane Comment
  UC24549  Plagiobothrys bracteatus W. H. Brewer 1862-4-30 1007 Contra Costa Camp 69 Walnut Creek Comment
  UC691333  Plagiobothrys bracteatus Mary L. Bowerman 1931-4-4 665 Contra Costa margins of dried-up pond w Turtle Rock; Mount Diablo Comment
  POM299395  Plagiobothrys bracteatus Joseph A. Ewan 1936-5-24 9698 Contra Costa West slope Bald Peak San Pablo Ridge Comment
  UC2070493  Plagiobothrys canescens Barbara Ertter 2001-3-18 17567 Contra Costa Shell Ridge Open Space SW of Walnut Creek, dip in Ridge Top Trail where paralleling Costanoan Trail. Comment
  UC180104  Plagiobothrys fulvus Harley P. Chandler 1901-3-21 840 Contra Costa s Concord; Lime Ridge Comment
  UC575686  Plagiobothrys fulvus Alice Eastwood and John Thomas Howell 1935-4-7 2120 Contra Costa sandy hills on Marsh Creek Road near Byron Comment
  SEINET1869807  Plagiobothrys leptocladus Barbara Ertter, Jim Jokerst and Dave Magney 1989-1 8129 Contra Costa Alkali sink W and adjacent to Clifton Court Forebay, ca 15 air miles SW of Stockton. 0 Comment
  JEPS68084  Plagiobothrys nothofulvus W. L. Jepson 1923-4-22 9878 a Contra Costa Mt. Diablo Comment
  JEPS68111  Plagiobothrys nothofulvus Mrs. E. L. Mossman 1931-4-21 139 Contra Costa vicinity Grizzly Peak; Berkeley Hills 472 Comment
  UC1069046  Plagiobothrys nothofulvus R. C. Wilson 1935-3-29 161 Contra Costa 1/2 mi w Deer Flat; Mt. Diablo Quadrangle Comment
  UC1073381  Plagiobothrys nothofulvus George B. Rossbach 1955-3-20 465 Contra Costa sw base Mt. Diablo Comment
  SEINET12275872  Plagiobothrys scouleri H. M. Hall 1901-1 s.n. Contra Costa region of San Francisco Bay, Mt. Diablo, western base Comment
  UCSB5650  Plagiobothrys stipitatus Robbins, G. 1937-4-25 Contra Costa Along roadside; 2 miles east of Alamo Comment
  OBI20600  Plagiobothrys stipitatus var. micranthus Robert F. Hoover 1967-4-28 10513 Contra Costa Byron Hot Springs Comment
  UC726183  Plagiobothrys stipitatus var. stipitatus A. A. Heller 1942-4-12 Contra Costa 5 mi sw Antioch crossing of Brentwood and Marsh Creek Roads Comment
  CHSC67897  Plagiobothrys trachycarpus James D. Jokerst 1988-3-21 2995 Contra Costa Los Vaqueros project in Livermore Valley ca. 1 mi W of Vasco Rd. and ca. 0.5 mi S of Camino Diablo Rd. Comment
  CHSC67898  Plagiobothrys trachycarpus James D. Jokerst 1989-3-28 3054 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  UC191656  Plagiobothrys trachycarpus E. L. Greene 1888-3-28 Contra Costa Byron Springs Comment
  UC24586  Plagiobothrys trachycarpus W. H. Brewer 1862-4-30 1007 Contra Costa Walnut Creek; ; Walnut Creek, Camp 69 Comment
  UC79220  Plagiobothrys trachycarpus Katharine Brandegee May 1886 Contra Costa near Antioch 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
  RSA128482  Plagiobothrys trachycarpus Robert F. Hoover 1941-4-12 4840 Contra Costa 1 mile N of Lone Tree Valley. Comment
  RSA523620  Plantago bigelovii subsp. bigelovii S. Galen Smith, R. C. Bacigalupi 1957-4-28 2851 Contra Costa 1 mile S of Byron. Comment
  RSA0026162  Plantago coronopus Barbara J. Ertter 1990-10-24 9684 Contra Costa Martinez Regional Shoreline on Carquinez Strait. Near arch bridge. Comment
  JEPS127674  Plantago elongata Barbara Ertter with David Gowen and Michael Park 2017-5-2 22807 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  JEPS15287  Plantago elongata Rimo Bacigalupi with G. T. Robbins 1956-3-26 5525 Contra Costa 1.2 mi n Deer Valley Road junction with Marsh Creek Road (along Deer Valley Road, just n of Briones Valley) 76 Comment
  JEPS22973  Plantago elongata Rimo Bacigalupi with G. T. Robbins and Fran Chisaki 1959-4-14 7004 Contra Costa 8 mi s Antioch (just off Deer Valley Road, Briones Valley); Briones Valley 79 Comment
  JEPS7118  Plantago elongata W. L. Jepson May 23 1891-May 24 1891 Contra Costa Mt. Diablo Comment
  UC1745802  Plantago elongata Annetta M. Carter 1933-4-9 291 Contra Costa About 2 mi. SW of Nortonville. Comment
  UC2042062  Plantago erecta Katie Gallagher with Nick Jensen 2014-4-26 189 Contra Costa Las Tramps Regional Wilderness. Comment
  UC691746  Plantago erecta Mary L. Bowerman 1930-6-18 336 Contra Costa upper end Rock City Canyon Mount Diablo, Rock City Canyon Comment
  UC1192028  Plantago major Malcolm A. Nobs and S. Galen Smith 1949-7-8 947 Contra Costa 4 mi. n. Kingston (Otto's Black Bass Resort); Otto's Black Bass Resort Comment
  UCD124520  Plantago major Malcolm A. Nobs; S. Galen Smith 1949-7-8 947 Contra Costa Otto's Black Bass Resort, 4 miles N of Kingston. Comment
  UC28020  Plantago maritima var. juncoides W. H. Brewer 1862-4-25 997 Contra Costa Martinez Comment
  JEPS78614  Plantago subnuda Walter Knight, L. R. Heckard, and Bert Johnson 1978-9-28 3298 Contra Costa Botany Cove, Browns Island Comment
  JEPS40297  Platanus racemosa F. W. Bancroft Oct. 1894 Contra Costa Walnut Creek Comment
  UCD143180  Platanus racemosa Robt. Branstead 1934-3-30 s.n. Contra Costa SW slope of Mt. Diablo. 426 Comment
  UC101592  Platystemon californicus Katharine Brandegee 1907-5-5 c Contra Costa between Antioch and Marsh Creek; between Antioch and Marsh Creek Comment
  UC101598  Platystemon californicus Katharine Brandegee 1907-5-5 d Contra Costa between Antioch and Marsh Creek; between Antioch and Marsh Creek Comment
  UC56196  Platystemon californicus H. M. Hall 1901-3-16 1654 Contra Costa Point Richmond; region of San Francisco Bay, Point Richmond Comment
  UC64135  Platystemon californicus H. M. Hall 1900-3-23 Contra Costa San Pablo Creek; Region of San Francisco Bay, San Pablo Creek Comment
  UC692175  Platystemon californicus Mary L. Bowerman 1933-4-15 1868 Contra Costa canyon s Arroyo del Cerro, Mount Diablo (rocky knoll 250 ft below spring, Mount Diablo); Mount Diablo Comment
  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
  UC691527  Plectritis ciliosa subsp. ciliosa Mary L. Bowerman 1931-3-29 629 Contra Costa Mount Diablo, on n side of Cave Point below summit Cave Point; Mount Diablo, Cave Point Comment
  JEPS6156  Plectritis congesta L. T. Dempster 1954-6-4 Contra Costa N of Orinda Wildcat Canyon Road Comment
  UC691521  Plectritis macrocera Mary L. Bowerman 1931-5-7 807 Contra Costa Mount Diablo, North Peak North Peak; Mount Diablo, North Peak Comment
  UC416755  Plectritis macrocera Harley P. Chandler 1901-3-22 883 Contra Costa near Fish Ranch Comment
  POM194540  Pleuropogon californicus var. californicus Y. Mexia 1929-4-21 2388 Contra Costa Junction of Franklin Canyon. Comment
  UCD90171  Pleuropogon californicus var. californicus Peter H. Raven; G. Thomas Robbins 1956-4-28 9042 Contra Costa Just east of junction to Martinez along State Highway 4. Comment
  CAS-BOT-BC356113  Pluchea odorata Walter Knight; J. Dean 1978-8-14 3137 Contra Costa Browns Island Comment
  CDA8486  Pluchea odorata D. G. Kelch, A. G. Murdock 2004-9-2 4 .334 Contra Costa Carquinez Strait Region; Pacheco Marsh. Marsh east of Martinez and I-680 and east of lone tree Marsh. Comment
  JEPS40446  Pluchea odorata var. odorata R. F. Hoover 1937-8-31 2703 Contra Costa Avon Comment
  UC485228  Pluchea odorata var. odorata H. M. Hall 1916-8-16 10272 Contra Costa Martinez San Francisco Bay Region Comment
  CAS-BOT-BC261042  Poa D. E. Breedlove 1971-5-14 19338 Contra Costa Along Sierra Vista Way, Lafayette Comment
  UC691192  Poa annua Mary L. Bowerman 1933-3-25 1764 Contra Costa off Stone Valley Emmons Canyon; Mt. Diablo Comment
  UCD90259  Poa annua A. A. Beetle 1942-3-22 2925 Contra Costa Brooks Island in San Francisco Bay. Comment
  UC1618191  Poa bulbosa Barbara Ertter, Lynne Hosley 1993-4-17 11507 Contra Costa ca. 10 air mi. n. Livermore (hills in lee of Mt. Diablo, e. side open meadow along Blue Oak trail, Morgan Territory); Morgan Territory 609 Comment
  CDA946  Poa howellii D. G. Kelch 2006-5-4 6 .127 Contra Costa Carquinez Strait; Vaca Canyon, on North facing road cut/bank along Alhambra Valley Road. Comment
  JEPS99538  Poa howellii Mary L. Bowerman 1978-5-14 Contra Costa Mount Diable. Eagle Peak Old Mines trail. Comment
  UC606727  Poa howellii Edward Lee 1936-4-19 2007 Contra Costa ne slope of island Red Rock; San Francisco Bay Comment
  UC692329  Poa howellii Mary L. Bowerman 1933-5-22 2167 Contra Costa w of 1970 Inner Black Hills; Mt Diablo, Inner Black Hills Comment
  CDA33806  Poa howellii D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .109 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  POM300627  Poa howellii Mary L. Bowerman 1933-4-22 1897 Contra Costa Inner Black Hills just west of Cave Point Comment
  POM300628  Poa secunda Mary L. Bowerman 1933-5-3 1985 Contra Costa Alder Canyon 732 Comment
  RSA484219  Poa secunda A. A. Beetle 1941-3-23 1713 Contra Costa 1 mile east of St. Mary's College 183 Comment
  POM300629  Poa secunda Mary L. Bowerman 1933-4-15 1869 Contra Costa Canyon south of Arroyo del Cerro; Rocky knoll 250 feet below spring. Comment
  RSA484205  Poa secunda Mary L. Bowerman 1931-4-18 715 Contra Costa Sycamore Canyon 335 Comment
  CAS-BOT-BC236386  Poa secunda subsp. secunda Mary L. Bowerman 1933-4-15 1869 Contra Costa Mount Diablo. Canyon S of Arroyo del Cerro: Rocky knoll 250 feet below spring Comment
  CAS-BOT-BC236388  Poa secunda subsp. secunda Mary L. Bowerman 1935-4-26 2924 Contra Costa Mount Diablo. Meridian Peak summit 1143 Comment
  CAS-BOT-BC236387  Poa secunda subsp. secunda Mary L. Bowerman 1935-4-19 2859 Contra Costa Mount Diablo. Near Turtle Rock, hillside on opposite side of the road 457 Comment
  SEINET13947037 Image available Pogogyne Joseph Andorfer Ewan 1936-1 9694 Contra Costa W slope of Bald Peak, San Pablo Ridge Comment
  POM126756  Pogogyne douglasii V. King Chesnut 1887-9-10 s.n. Contra Costa Mt. Diablo Comment
  UC1613281  Pogogyne serpylloides Charles M. Belshaw 1935-6-24 787 Contra Costa 1/2 mi e of Grizzly Peak (n face of Bald Peak); Bald Peak Comment
  UC1795893  Pogogyne serpylloides Barbara Ertter, Lisa Schultheis 1995-4-27 14017 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; head of west facing scrub-filled draw (east of golf-course). 182 Comment
  POM193972  Pogogyne serpylloides J. T. Howell 1930-4-22 4747 Contra Costa Bald Peak Comment
  RSA0027949  Pogogyne serpylloides Barbara Ertter 1997-9-14 15803 Contra Costa WSW base of Mount Diablo, along creek at fence line between Pine Ridge and lower Wall Point Road from Macedo Ranch. Comment
  SEINET13947028 Image available Pogogyne serpylloides Joseph Andorfer Ewan 1935-1 9305 Contra Costa E slope of Bald Peak, San Pablo Ridge; 1800 ft alt. 549 Comment
  UC421583  Pogogyne serpylloides John Thomas Howell 1930-4-22 4747 Contra Costa Bald Peak Comment
  UC691475  Pogogyne serpylloides Mary L. Bowerman 1931-4-11 696 Contra Costa Mount Diablo, Pine Canyon floor 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
  UC883703  Pogogyne zizyphoroides Lewis S. Rose 1937-4-21 37226 Contra Costa Byron 15 Comment
  CDA23065  Polycarpon tetraphyllum D. G. Kelch, D. A. Weinstein 2008-5-5 8 .091 Contra Costa Carquinez Strait; Richmond. W Chevy s Hill. N parking lot of Hilltop Mall. Comment
  CDA9497  Polygonum aviculare D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .222 Contra Costa Byron Airport. Comment
  POM181450  Polygonum aviculare I. L. Wiggins 1930-4-18 4612 Contra Costa East end of Jersey Island. Comment
  CAS-BOT-BC413971  Polygonum aviculare subsp. aviculare R. E. Frenkel 1964-2-5 349 Contra Costa On California Hwy. 21, Market Plaza Center, Alamo 79 Comment
  CDA31465  Polygonum aviculare subsp. buxiforme D. G. Kelch 2006-8-12 6 .376 Contra Costa Carquinez Strait; Martinez. Along Alhambra Creek near train station. Comment
  JEPS112027  Polygonum aviculare subsp. depressum Dean G. Kelch and Andrew G. Murdock 2004-7-9 DGK 04 .290Z Contra Costa Edwards Creek Crockett CA. Comment
  JEPS112022  Polygonum hydropiperoides Dean G. Kelch and Andrew G. Murdock 2004-6-6 DGK 04 .228 Contra Costa Martinez - Train Station. Downtown Martinez. Alhambra Creek near bay and railroad Station. Comment
  JEPS95765  Polygonum ramosissimum Dianne Lake 1999-10-5 Contra Costa NW end of wetland at NE corner of Plymouth and Hillcrest, 1 block N of E 18th St. Antioch 3 Comment
  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
  UCR254830  Polypogon Peter Rubtzoff 1968-9-18 5966 Contra Costa North Gate Road, c. 5 miles NW of Mt. Diablo State Park north entrance 58 Comment
  UC50642  Polypogon elongatus Jos. Burtt Davy 1897-9-25 4088 Contra Costa Suisun Marshes Comment
  UCD91222  Polypogon monspeliensis A. A. Beetle 1941-6-24 1750 Contra Costa Point Richmond on San Francisco Bay. Comment
  CAS-BOT-BC232581  Polypogon monspeliensis Mary L. Bowerman 1932-8-27 1521 Contra Costa Mount Diablo. Spring S of Turtle Rock Comment
  POM300722  Polypogon viridis Mary L. Bowerman 1933-11-4 2462 Contra Costa Mount Diablo; Alder Creek Springs. 488 Comment
  JEPS111937  Polystichum munitum D. G. Kelch 2005-3-25 05 .78 Contra Costa Fernandez Ranch Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak 150 Comment
  RSA693322  Polystichum munitum Mark Morris 1929-03 s.n. Contra Costa Mt. Diablo. Comment
  JEPS112254  Populus fremontii subsp. fremontii D. G. Kelch 2005-5-13 05 .236 Contra Costa Martinez South of oil refinery along Railroad tracks Comment
  UC403974  Populus fremontii subsp. fremontii W. L. Jepson 1907-4 Contra Costa near Walnut Creek (San Ramon Valley); San Ramon Valley Comment
  POM181439  Populus fremontii subsp. fremontii Ira L. Higgins 1930-4-18 4602 Contra Costa [Levee bank?]. SE side Jersey School. Comment
  CAS-BOT-BC105604  Populus trichocarpa Marian L. Campbell 1921-7-26 s.n. Contra Costa Ireland's place, Sacramento River Comment
  RSA720835  Potamogeton foliosus Mary L. Bowerman 1995-6-8 s.n. Contra Costa Mount Diablo. Pine Pond. Comment
  SEINET11268163  Potamogeton pectinatus Barbara Ertter 1998-6-20 16254 Contra Costa NW side of Mount Diablo, Willow Spring Pond south of Ginder Gap.; 0 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
  JEPS111535  Prunus cerasifera D. G. Kelch 2005-5-6 05 .219 Contra Costa Franklin Canyon East of Christie Road. South of Route 4.. 127 Comment
  UC2027755  Prunus cerasifera Barbara Ertter, Mary Bowerman 1996-11-1 15407 Contra Costa North base of Mount Diablo, lower Donner Creek. Comment
  UC2027736  Prunus dulcis Barbara Ertter 1997-2-11 15456 Contra Costa North side of Mount Diablo, near old reservoir site in lower Mitchell Canyon. Comment
  JEPS44968  Prunus subcordata W. L. Jepson 1907-4-26 2648 c Contra Costa Mitchell Canyon Mt Diablo Comment
  UC691121  Prunus subcordata Mary L. Bowerman 1933-5-21 2157 Contra Costa S from Curry Canyon ( head of Grape Gully); Mount Diablo Comment
  UC1614254  Prunus virginiana var. demissa Charles M. Belshaw 1935-6-10 695 Contra Costa Morgan Territory Road Comment
  UC691146  Prunus virginiana var. demissa Mary L. Bowerman 1933-5-21 2148 a Contra Costa Grape Spring s from Curry Canyon (Mount Diablo); , Grape Spring Comment
  JEPS111702  Pseudognaphalium californicum D. G. Kelch 2004-4-26 04 .132 Contra Costa Point Pinole 8 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
  JEPS75548  Pseudognaphalium ramosissimum P. F. Yorks 1975-8-29 491 Contra Costa on Hampton Road ca 1.6 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Preserve 180 Comment
  CHSC116615  Psilocarphus tenellus Lowell Ahart; Josephine Guardino 2016-4-19 20795 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
  RSA0068481  Psilocarphus tenellus Katie Gallagher, Nick Jensen 2014-4-26 194 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  UC694157  Psilocarphus tenellus Herbert L. Mason 1932-4-15 6926 Contra Costa summit of Road Moraga to Lafayette Comment
Read comments Oct 6 2006
  POM203037  Ptelea baldwinii subsp. crenulata J. T. Howell 1934-4-8 11811 Contra Costa 7 miles from Clayton on road to Livermore. Comment
  RSA0084070  Ptelea baldwinii subsp. crenulata L. S. Rose 1936-4-24 36147 Contra Costa Marsh Creek. 6 miles E of Clayton. 61 Comment
  RSA448386  Ptelea baldwinii subsp. crenulata H. de Forest 1930-4-6 s.n. Contra Costa SE of Mortonville, Small 'coal mine' ravine. 274 Comment
  CAS-BOT-BC148623  Ptelea crenulata Brandegee s.n. Contra Costa Antioch Comment
  CAS-BOT-BC148636  Ptelea crenulata W. W. Carruth 1903-5-10 s.n. Contra Costa Mitchell Canyon, Mt. Diablo Comment
  CAS-BOT-BC148637  Ptelea crenulata Lewis S. Rose 1936-4-24 36147 Contra Costa Marsh Creek, 6 mi. E of Clayton 60 Comment
  CAS-BOT-BC148638  Ptelea crenulata Edw. L. Greene 1886-5-24 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC148647  Ptelea crenulata Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Val. Comment
  JEPS21816  Ptelea crenulata Marjory A. Hayden 1958-5-16 Contra Costa 2 mi s Martinez (Franklin Canyon Road) Comment
  JEPS40171  Ptelea crenulata W. L. Jepson 1923-6-10 9993 Contra Costa Upper Marsh Creek; Mt. Diablo Comment
  JEPS99948  Ptelea crenulata G. Smick 2003-4-8 GAS 127 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SDSU9373  Ptelea crenulata D. F. Howe 1968-5-20 4517 Contra Costa 8.0 miles north of Alameda-Contra Costa Co. line on Morgan Territory Road. Comment
  UC1614255  Ptelea crenulata Charles M. Belshaw 1935-6-10 696 Contra Costa Morgan Territory Rd. Comment
  UC17376  Ptelea crenulata J. Burtt Davy 1895-4-7 909 Contra Costa Antioch Comment
  UC2029093  Ptelea crenulata Barbara Ertter with Travis Columbus 1990-6-10 9110 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill, on Spengler Trail NE of Briones Peak. Comment
  UC583288  Ptelea crenulata Alice Eastwood and John Thomas Howell 1936-4-19 2134 Contra Costa Nortonville Comment
  UC692575  Ptelea crenulata Mary L. Bowerman 1930-6-22 357 Contra Costa Mitchell Canyon; Mount Diablo Comment
  CAS-BOT-BC148646  Ptelea crenulata Volney Rattan; Dr. Mary Curran 188 s.n. Contra Costa Unspecified Comment
  UC1795763  Pterostegia drymarioides Barbara Ertter, Lisa Schultheis 1995-4-27 14014 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; north-facing open brushy slope with scattered oaks along extension of Valley View road. 182 Comment
  UC692210  Pterostegia drymarioides Mary L. Bowerman 1931-3-29 617 Contra Costa e. end Cave Point Ridge; Mt. Diablo Comment
  JEPS28855  Quercus X morehus James B. Roof, Irja Knight 1962-2-21 Contra Costa Moraga Ridge Comment
  UC2012970  Quercus X morehus Barbara Ertter with Tony Morosco 1996-7-27 15038 Contra Costa Mount Diablo State Park, Wasserman Trail on ridge below Cardinet Oaks Road. Comment
  CAS-BOT-BC104166  Quercus X morehus Mary L. Bowerman 1931-9-27 1046 Contra Costa Mount Diablo. Near Quicksilver Mine on N side of North Peak Comment
  CAS-BOT-BC104167  Quercus X morehus Mary L. Bowerman 1935-10-26 3349 Contra Costa Mount Diablo. 0.1 mile by road above Silver Spring, 50 feet from road 859 Comment
  OBI14240  Quercus X morehus H. E. McMinn unk 367 Contra Costa 2-1/4 mi E of Redwood Peak on extension of the ridge Comment
  POM301006  Quercus X morehus Mary L. Bowerman 1935-10-26 3349 Contra Costa 0.1 mile by road above Silver Spring, 50 feet from road. 860 Comment
  CAS-BOT-BC45656  Quercus agrifolia John Thomas Howell 1950-7-5 26638 Contra Costa Nortonville Comment
  CAS-BOT-BC45663  Quercus agrifolia Mary L. Bowerman 1930-6-3 225 Contra Costa West road, 1.9 miles from west entrance, Mount Diablo Comment
  CDA33977  Quercus agrifolia D. G. Kelch 2011-3-31 11 .082-B Contra Costa Carquinez Strait region.; Pinole. Comment
  UC521668  Quercus agrifolia Joseph Andorfer Ewan 1933-10-15 8027 Contra Costa sw slope Mt. Diablo 1066 Comment
  UC5471  Quercus agrifolia A. Resmond 1862-10-24 1474 Contra Costa near summit between Oakland and Walnut Creek Comment
  UC2028191  Quercus berberidifolia Barbara Ertter with Ann Dennis 1998-1-25 15908 Contra Costa Donner Canyon on north side Mount Diablo, Middle Trail/Falls Trail. Comment
  UC1135397  Quercus chrysolepis R. C. Wilson 1935-3-28 155 Contra Costa Top of Mt. Diablo Mt. Diablo Quad. 1158 Comment
  UC691274  Quercus chrysolepis Mary L. Bowerman 1930-8-31 446 Contra Costa Dan Cook Canyon, upper end Mount Diablo Comment
  CAS-BOT-BC86642  Quercus douglasii Brandegee s.n. Contra Costa unspecified 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
  JEPS37385  Quercus douglasii W. L. Jepson 1898-10-18 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC86120  Quercus dumosa Mary L. Bowerman 1933-4-15 1878 Contra Costa Mount Diablo. Canyon S of Arroyo del Cerro: Canyon side Comment
  CDA8370  Quercus garryana D. G. Kelch 2003-11-24 3 .342 Contra Costa Carquinez Strait; Between Bull Valley Staging Area and Port Costa. Comment
  UC1748010  Quercus garryana E. Dean, M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 655 Contra Costa Fossil Ridge, just upslope of South Gate Rd., just W of Gibralter Rock, SE of Rock City Mount Diablo State Park 487 Comment
  UCD130592  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, 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
  UC691309  Quercus kelloggii Mary L. Bowerman 1936-8-19 3532 Contra Costa ne-face on s side Pine Canyon mouth (most n w-heading streamlet shown on topographic map (now dry)); Mount Diablo 173 Comment
  SEINET12034573  Quercus kelloggii M. T. Doutt 1930-1 83 Contra Costa Marsh Creek 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
  UCD47071  Quercus palmeri J. M. Tucker 1981-4-25 4453 D Contra Costa California, Contra Costa County: Antonio Souza Ranch southwest of Byron (extended Section NW quarter Sec. 31, R3E, T1S, Mt. Diablo Meridian). 309 Comment
  UCD84948  Quercus palmeri Chuck Hughes 2010-3-29 220 Contra Costa About 0.4 mile south of Vasco Road. 326 Comment
  UC2070466  Quercus parvula var. shrevei Barbara Ertter 2000-9-2 17523 Contra Costa Sobrante Ridge Preserve in hills southeast of El Sobrante, Manzanita Trail near Heavenly Ridge Trail junction. Comment
  UC691311  Quercus wislizeni Mary L. Bowerman 1933-5-21 2161 Contra Costa ridge above Morgan Sulphur Spring; Mount Diablo 381 Comment
  UCD47498  Quercus wislizeni John M. Tucker 1946-4-4 1392 Contra Costa Ca. 100 yards northwest of intersection of Grizzly Peak Boulevard and road to Easport, Oakland hills, Contra Costa County, California. 365 Comment
  CAS-BOT-BC104711  Quercus wislizeni Mary L. Bowerman 1934-3-18 2480 Contra Costa Mount Diablo. Russelman Park: End of road Comment
  POM180792  Quercus wislizeni J. T. Howell 1930-6-15 5310 Contra Costa Summit of Grizzley Peak, Berkeley Hills Comment
  JEPS96257  Quercus wislizeni var. frutescens Dean Kelch 1995-3-14 97 .13 Contra Costa Mount Diablo, Rock City, e Contra Costa County Rock City; Mount Diablo, Rock City 457 Comment
  CDA22082  Quercus wislizeni var. wislizeni D. G. Kelch 2004-3-13 4 .04 Contra Costa Mt Diablo Region.; Road cut along Marsh Creek Rd about 1.5 miles W of Deer Valley Rd. Comment
  SJSU10139  Quercus wislizeni var. wislizeni A. W. Jacobs 1938-10-1 Contra Costa lower E slope of Mt Diablo, 5 mi S of Clayton Comment
  JEPS111763  Rafinesquia californica D. G. Kelch 2005-5-13 05 .260 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Area along Vista Road ~ 2.5 kiloms West of Martinez 45 Comment
  UC691456  Rafinesquia californica Mary L. Bowerman 1932-5-6 1419 Contra Costa Mitchell Canyon Floor Mount Diablo, Mitchell Canyon Floor 213 Comment
  UC2029188  Rafinesquia californica Barbara Ertter 2000-5-14 17014 Contra Costa Donner Basin on north side of Mount Diablo, Falls Trail between Donner Creek and Wild Oat Canyon Comment
  CAS-BOT-BC379109  Ranunculus aquatilis var. diffusus A. D. E. Elmer 1903-5-1 4318 Contra Costa Mount Diablo Comment
  RSA224309  Ranunculus aquatilis var. hispidulus Mary L. Bowerman, Walter Knight, I. Knight 1968-6-4 2331 Contra Costa floating on Frog Pond Mt. Diablo State Park Comment
  UC400155  Ranunculus californicus Ynes Mexia 1929-4-21 2377 Contra Costa Moraga Valley Comment
  UC480590  Ranunculus californicus Carl Meyer 1928-2-22 295 Contra Costa Mt. Diablo Comment
  RSA0068489  Ranunculus californicus var. californicus Katie Gallagher, Nick Jensen 2014-4-26 185 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  JEPS73327  Ranunculus canus Edward Lee 1935-3-10 1284 Contra Costa Donovan Road Kirker Pass ((w watershed of Kirker Creek)) Comment
  SEINET12087454  Ranunculus canus Unknown 1931-1 2655 Contra Costa W. Base Mt. Diablo, Danville, Mt. Range: South Coast, Sacramento River, North slope Comment
  UC118266  Ranunculus canus var. canus T. S. Brandegee May 1889 Contra Costa Antioch Comment
  UC13970  Ranunculus canus var. canus Chesnut and Drew 1889-4-17 Contra Costa Clayton Comment
  UC692171  Ranunculus canus var. canus Mary L. Bowerman 1932-3-23 1127 Contra Costa East of Donner Creek; Mount Diablo Comment
  UC9445  Ranunculus hebecarpus Geol. Survey 1862-1 1049 Contra Costa Mt. Diablo; foothills Comment
  NY353467  Ranunculus hesperoxys E. L. Greene 1887-4-16 s.n. Contra Costa 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
  PASA2644  Ranunculus occidentalis Annetta Carter 1929-3-31 140 Contra Costa Near Clayton Comment
  UCD97103  Ranunculus sceleratus Mr. Nevin 1924-3-24 s.n. Contra Costa Antioch. Comment
  JEPS116905  Ranunculus sceleratus David Gowen 2008-9-4 970 Contra Costa Lime Ridge Open Space. Comment
  JEPS78175  Raphanus sativus Gary W. Zamzow 1973-1-26 124 Contra Costa 300 m. s. of Central Ave. overpass & 100 m. w. of Hoffman Blvd. Richmond (landfill at edge of Bay) Comment
  SEINET11268201  Raphanus sativus Barbara Ertter 1998-6-12 16160 Contra Costa North Gate Road on west flank of Mount Diablo, dogleg in road above raches opposite Angel Kerley trail head.; 0 579 Comment
  CDA29197  Rhamnus californica D. G. Kelch 2008-6-15 8 .249 Contra Costa Carquinez Strait; Crockett hills, S of Cummings Skyway, W of Crockett Blvd. Comment
  CAS-BOT-BC59893  Rhamnus ilicifolia A. D. E. Elmer 1903-5-1 4326 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC59894  Rhamnus ilicifolia A. D. E. Elmer 1903-5-1 4326 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC59897  Rhamnus ilicifolia H. E. McMinn 1922-6-2 90 Contra Costa N. slope of Mt. Diablo. Comment
  CAS-BOT-BC59898  Rhamnus ilicifolia L. R. Abrams 1910-10-8 4352 Contra Costa Mt. Diablo. 1158 Comment
  UC1121879  Rhamnus ilicifolia G. T. Nordstrom 1937-11-9 1411 Contra Costa 3.2 mi se Somerville; Mt. Diablo Quad. 198 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
  JEPS98405  Rhaponticum repens Bob Case 2001-10-2 Contra Costa East Bay Municipal Utilities District right-of-way on West Hookston Road Pleasant Hill, SE Comment
  UC692577  Rhus trilobata Mary L. Bowerman 1933-6-21 2328 Contra Costa Donner Canyon; Mount Diablo Comment
  JEPS77003 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
  RSA128347  Ribes californicum Peter H. Raven 1950-3-5 1408 Contra Costa Happy Valley Road, 2.8 miles above intersection with Upper Happy Valley road. 244 Comment
  SD2125  Ribes californicum Earle Mulliken 1905-1-28 161 Contra Costa Wildcat CaA'on, Berkeley Hills. Comment
  UC578075  Ribes californicum N. French 1933-2-23 32 Contra Costa Berkeley Hills San Farncisco Quadrangle Comment
  CAS-BOT-BC92921  Ribes californicum var. californicum John Thomas Howell 1926-3-7 1669 Contra Costa Mount Diablo. Comment
  JEPS49338  Ribes malvaceum W. L. Jepson 1921-11-19 9514 Contra Costa halfway up to summit Mt. Diablo Comment
  RSA0021635  Ribes malvaceum J. T. Howell 1926-3-7 1667 Contra Costa Mt. Diablo. Comment
  UC2029050  Ribes malvaceum var. malvaceum Barbara Ertter with Linda Vorobik 2000-1-9 16887 Contra Costa Las Trampas Regional Wilderness in East Bay Hills west of Danville. Comment
  UC1127445  Ribes menziesii H. S. Yates 1936-3-14 5364 Contra Costa 2 1/2 mi sw Round Valley; Mt. Diablo Quadrangle Comment
  SEINET5339680  Ribes menziesii var. leptosmum P. Del Monte 1976-3-28 s.n. Contra Costa Morgan territory road, 1 mile from junction with Marsh creek road 122 Comment
  CAS-BOT-BC209363  Ribes sanguineum var. glutinosum H. E. McMinn 1925-1-1 22 Contra Costa Head of San Leandro Creek Comment
  OBI14063  Ribes sanguineum var. glutinosum Neil Havlik 1968-3-21 87 Contra Costa In cultivation on an E exposure, Botanical Garde, Charles Lee tilden regional park, E of Berkeley Comment
  UC697151  Rigiopappus leptocladus Mary L. Bowerman 1931-4-4 669 Contra Costa w Turtle Rock; Mount Diablo Comment
  UC1818998  Robinia pseudoacacia Barbara Ertter, Tom Delendick 1996-5-2 14616 Contra Costa Mount Diablo State Park, Mitchell Canyon parking area, downstream. 182 Comment
  CAS-BOT-BC147411  Rosa californica Mary L. Bowerman 1931-5-13 841 Contra Costa Pine Canyon one mile above the Sulphur Spring Comment
  UC555497  Rosa gymnocarpa Herbert L. Mason 1924-11-23 1172 Contra Costa Cashion Creek Las Trampas Ridge Comment
  UC2027880  Rubus armeniacus Barbara Ertter with Mary Bowerman 1996-11-1 15404 Contra Costa North base of Mount Diablo, lower Donner Creek between trailhead and cabin site. Comment
  UC12996  Rubus ursinus W. H. Brewer 1862-5-17 1107 Contra Costa Canyon n Monte Diablo; Canyon n of Monte Diablo Comment
  UC1584691  Rumex acetosella Jerry Powell 1987-7-14 1508 Contra Costa Point Molate Beach Comment
  CDA22901  Rumex crispus D. G. Kelch 2006-7-14 6 .33 Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  UC692169  Rumex crispus Mary L. Bowerman 1935-5-30 3082 Contra Costa Donner Canyon stream Mount Diablo 152 Comment
  UC1745555  Rumex crispus Annetta M. Carter, Florence Little, Edward Lee 1934-7-4 675 Contra Costa Marsh Creek Rd. 3 miles beyond Contra Costa Co. Sanatorium. Comment
  CAS-BOT-BC433710  Rumex occidentalis Walter Knight; Joanne Dean 1978-8-14 3138 Contra Costa Browns Island. Comment
  CDA34275  Rumex pulcher D. G. Kelch 2009-5-24 9 .299 Contra Costa Carquinez Strait; S of Ozol, W/SW of Martinez. Comment
  UC2012982  Rumex salicifolius var. salicifolius Barbara Ertter with Tony Morosco 1996-7-27 15030 Contra Costa Mount Diablo State Park, Donner Creek ca halfway between Regency Drive trailhead and old cabin site Comment
  JEPS112039  Ruppia maritima D. G. Kelch 2004-4-26 04 .138 Contra Costa Point Pinole 1 Comment
  JEPS127040  Sagina apetala Lowell Ahart, Josephine Guardino 2016-4-19 20774 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
  RSA0029774  Salicornia maritima Barbara Ertter 1990-9-30 9656 Contra Costa Point Pinole Regional Shoreline, on SW corner of park; edge of San Pablo Bay. Comment
  CDA23458  Salicornia subterminalis R. L. Todd 1962-11-21 Contra Costa Old River Canal bridge. 0 Comment
  UC69370  Salix Wm. W. Mott 1905-3-1 Contra Costa n.e. corner San Pablo Ave. & McAvoy Lane Comment
  UC69377  Salix Wm. W. Mott 1905-3-11 Contra Costa n.e. corner San Pablo and McAvoy Lane Comment
  CAS-BOT-BC129912  Salix bonplandiana Ira L. Wiggins 1930-4-18 4601 Contra Costa Levee banks, Jersey Island. Comment
  CAS-BOT-BC129914  Salix bonplandiana Mary L. Bowerman 1933-11-9 2468 Contra Costa Meridian Peak; spring on ridge west of Old Government Trail, fifty feet from head of spring - Mount Diablo 533 Comment
  CAS-BOT-BC107875  Salix gooddingii Ira L. Wiggins 1930-4-18 4591 Contra Costa Jersey Island Comment
  CDA15252  Salix gooddingii G. F. Hrusa, D. Crowe 1998-5-8 14383 b Contra Costa Sacramento Delta; Dow Ecological Reserve on Dow Chemical property at Pittsburg. Comment
  JEPS112249  Salix laevigata A. G. Murdock 283 Contra Costa Refugio Valley 120 Comment
  JEPS112251  Salix laevigata D. G. Kelch 2004-5-7 04 .198 Contra Costa Canada del Cierbo 40 Comment
  POM300613  Salix laevigata Mary L. Bowerman 1933-5-10 2067 Contra Costa Spring on ridge below Indian Ceremonial Spring. Mt. Diablo. 976 Comment
  JEPS75494  Salix lasiolepis P. F. Yorks 1976-1-31 505 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
  UC692032  Salix lasiolepis Mary L. Bowerman 1931-3-14 567 Contra Costa Riggs Canyon Mount Diablo (e side) Comment
  UC692056  Salix lasiolepis Mary L. Bowerman 1931-2-22 519 Contra Costa Sycamore Canyon; mouth Comment
  UCD150912  Salix lasiolepis James A. Neilson Jr.; Samuel A. Bamberg 1972-10-22 3495 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  UC1124728  Salvia columbariae C. M. Belshaw 1936-5-8 2054 Contra Costa se slope Mt. Diablo; Mt. Diablo Quad. 990 Comment
  UC691727  Salvia columbariae Mary L. Bowerman 1930-6-7 290 Contra Costa Mount 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
  JEPS62759  Salvia mellifera W. L. Jepson 1921-11-19 9517 Contra Costa Mt. Diablo Comment
  JEPS89167  Salvia mellifera W. L. Jepson 1898-10-18 Contra Costa Mt. Diablo Comment
  UC1124790  Salvia mellifera R. W. Lundh 1933-3-25 221 Contra Costa 1 mi w Alamo; Concord Quad. 213 Comment
  UC25730  Salvia mellifera H. N. Bolander Apr 1866 6317 Contra Costa Mount Diablo Comment
  UC634921  Salvia mellifera H. L. Mason 1925-3-10 1291 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
  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
  JEPS12783  Sanicula bipinnata Rimo Bacigalupi with G. T. Robbins 1955-5-4 4976 Contra Costa s of and above Nortonville (site) 304 Comment
  JEPS100132  Sanicula bipinnata G. Smick GAS 90 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  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
  JEPS111603  Sanicula bipinnatifida D. G. Kelch 2003-3-21 03 .50 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  JEPS111612  Sanicula bipinnatifida D. G. Kelch 2004-4-3 04 .48 Contra Costa Martinez - Vine HillRidge West of 680. North of highway 4 44 Comment
  UC1555367  Sanicula crassicaulis Jerry Powell 1988-4-8 1527 Contra Costa west Richmond, Point Molate Point Molate; Richmond, Point Molate Comment
  SBBG122982  Sanicula saxatilis B. Ertter et al. 1991-4-7 9728 Contra Costa Eagle Pk on Mt Diablo Comment
  UC194920  Sanicula saxatilis H. M. Hall 1916-5-31 10136 Contra Costa along east crest of Mount Diablo Mount Diablo 1158 Comment
  UC691876  Sanicula tuberosa Mary L. Bowerman 1931-4-25 755 Contra Costa Mount Diablo, near junction of south and west roads Mount Diablo Comment
  UC1949240  Sanicula tuberosa Barbara Ertter with Michelle Seidl 1992-3-14 10914 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo; along Blue Oak Trail Comment
  UC2029042  Sanicula tuberosa Barbara Ertter 2000-3-19 16895 Contra Costa Southwest side of Mount Diablo, Secret Trail between Barbecue Terrace Road and Wall Point Road. Comment
  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
  UCD150898  Schoenoplectus James A. Neilson Jr. 1972-10-22 3503 Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 0 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
  CAS-BOT-BC111462  Schoenoplectus californicus LeRoy Abrams 1916-7-29 6305 Contra Costa Martinez Comment
  CAS-BOT-BC111464  Schoenoplectus californicus Walter Knight; Irja Knight 1977-6-18 s.n. Contra Costa On shore of San Joaquin River, Antioch sand dunes, Little Corral site. Comment
  SD134082  Schoenoplectus californicus Walter Knight, Irja Knight 1977-6-18 Contra Costa On shore of San Joaquin River, Antioch sand dunes, Little Corral site. Growing in water at high tide. Comment
  UC1950189  Schoenoplectus californicus Barbara Ertter 1990-9-10 9639 Contra Costa Briones Regional Park, Briones Hills S of Martinez, at margin of main Sindicich Lagoon Comment
  JEPS111885  Scirpus acutus D. G. Kelch 2003-8-13 03 .106 Contra Costa Martinez Marsh 0 Comment
  SEINET192303  Scirpus acutus O. Woggoms, Woggoms 1930-4-18 4589 Contra Costa Jersey Island Contra Costa Co. Comment
  UC691975  Scirpus americanus Mary L. Bowerman 1933-4-22 1882 Contra Costa just s of highway Heather Farm (Mount Diablo); , nw end Shell Ridge Comment
  CAS-BOT-BC240009  Scribneria bolanderi John Thomas Howell 1953-3-15 28924 Contra Costa Rock City, Mt. Diablo Comment
  UC691605  Scrophularia californica Mary L. Bowerman 1930-6-18 344 Contra Costa Dan Cook Canyon Mt Diablo Comment
  UC1713655  Scutellaria tuberosa Joseph Andorfer Ewan 1934-4-8 8767 Contra Costa head of Arroyo Cayetano; Mount Diablo, Arroyo Cayetano 609 Comment
  UC1713668  Scutellaria tuberosa unknown 1027 Contra Costa Walnut Creek Comment
  UC691405  Scutellaria tuberosa Mary L. Bowerman 1931-3-29 626 Contra Costa Mount Diablo, Cave Point Cave Point; Mount Diablo, Cave Point 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
  JEPS99566  Sedum radiatum Mary Bowerman 1975-6-1 Contra Costa Mount Diablo, (probably along Falls Trail). Comment
  UC2028051  Sedum radiatum Barbara Ertter with Ann Dennis 1998-1-25 15909 Contra Costa Donner Canyon on north side Mount Diablo, Middle Trail/Falls Trail. Comment
  JEPS48062  Sedum spathulifolium W. L. Jepson 1918-6-5 7610 Contra Costa summit North Peak (Mt. Diablo); , summit of North Peak 1066 Comment
  UC11261  Sedum spathulifolium Brewer 842 Contra Costa Mt. Diablo Summit Comment
  CAS-BOT-BC363290  Senecio aronicoides Alice Eastwood 1922-5-14 11319 Contra Costa Mt. Diablo Comment
  JEPS79322  Senecio flaccidus var. douglasii Edward Lee with Annetta Carter 1935-8-17 1634 Contra Costa Antioch Comment
  RSA107411  Senecio flaccidus var. douglasii L. S. Rose 1955-10-17 55186 Contra Costa Antioch 15 Comment
  UC1584828  Senecio hydrophilus Jerry Powell 1990-8-29 1588 Contra Costa Antioch National Wildlife Refuge Comment
  CAS-BOT-BC363701  Senecio hydrophilus Walter Knight; I. Knight; J. T. Howell; E. McClintock; et al 1978-9-5 3228 Contra Costa Botany Cove Area. Browns Island Comment
  CAS-BOT-BC363750  Senecio integerrimus Rimo Bacigalupi 1926-4-30 1352 Contra Costa Summit of Mt Diablo Comment
  JEPS37621  Senecio sylvaticus W. L. Jepson 1921-5-22 9201 Contra Costa Mt. Diablo, summit Mt. Diablo 1173 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
  UC691361  Senecio sylvaticus Mary L. Bowerman 1933-5-11 2071 Contra Costa most westerly part of 1931 burn Mount Diablo, Inner Black Hills (Mount Diablo, Inner Black Hills) Comment
  CHSC23334  Senecio vulgaris Willis Ball 1975-2-23 435 Contra Costa Contra Loma Regional Park. In area #1. Ca. 25 yds e of restroom facilities at s end of lake. 30 Comment
  JEPS111875  Sequoia sempervirens D. G. Kelch 2004-3-5 04 .2 Contra Costa Martinez - Rankin Open Space Rankin Park, Martinez, Contra Costa County, CA. Sapling waif to 2 ms. In shade of Canyon. Probably seeded from nearby horticultural planting. 27 Comment
  SEINET13289876 Image available Sequoia sempervirens L. S. Rose 1934-1 Contra Costa Redwood Canyon Comment
  UC2062676  Sequoia sempervirens Barbara Ertter with Dan Norris 2000-12-3 Contra Costa Mount Diablo, west fork of Sycamore Canyon. Comment
  CDA37437  Sesbania punicea D. G. Kelch, Mike Perlmutter 2011-9-23 11 .764 Contra Costa Antioch. Dow Wetlands. 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
  JEPS127099  Sherardia arvensis Lowell Ahart, Josephine Guardino 2016-4-19 20802 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  UC1795725  Sherardia arvensis Barbara Ertter, Mary Bowerman, Lisa Schultheis 1995-3-31 13941 Contra Costa Mount Diablo State Park, lower end of Mitchell Canyon south of Clayton, open oak woodland/grassland open flat area on east side of stream not far from trail head. 182 Comment
  RSA0068491  Sherardia arvensis Katie Gallagher, Nick Jensen 2014-4-26 183 Contra Costa Las Trampas Regional Wilderness. 365 Comment
  POM300647  Sidalcea malviflora subsp. malviflora Mary L. Bowerman 1933-4-22 1880 Contra Costa Shell Ridge where the highway crosses; Meadow (opposite Heather Farm), near the sulphur spring. Comment
  JEPS111791  Silene gallica D. G. Kelch 2005-5-13 05 .242 Contra Costa Martinez. South of oil refinery along Railroad tracks in fragment of habitat 28 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
  UC692534  Silene verecunda subsp. platyota Mary L. Bowerman 1930-6-7 278 Contra Costa Mount Diablo Comment
  UC691084  Sinapis arvensis Mary L. Bowerman 1938-5-25 3634 Contra Costa North Road 2 mi from North Gate (Mount Diablo); , North Road 182 Comment
  UCD115424  Sinapis arvensis R. Koch 1996-4-20 2 Contra Costa city of Danville, free space by Mt. Diablo State Park. 121 Comment
  CAS-BOT-BC74936  Sinapis arvensis Mary L. Bowerman 1938-5-25 3634 Contra Costa Mount Diablo. North Road 2 miles from North Gate. 182 Comment
  SFV1416  Sinapis arvensis L. B. Hendrix 1962-4-22 21 Contra Costa Walnut Creek, Sun Valley Drive. Comment
  UC2070554  Sinapis arvensis Barbara Ertter 2002-6-22 17963 Contra Costa Clayton Oak Road near Rialto Road, east of Donner Canyon at north base of Mount Diablo. Comment
  UC2070555  Sisymbrium orientale Barbara Ertter with David Gowen and Mike Park 2004-4-13 18349 Contra Costa Black Diamond Mines Regional Park south of Pittsburg, River View Loop Trail at N end of ridge E of Sidney Flat Headquarters. Comment
  RSA310841  Sisyrinchium bellum John Weiler 1959-4-5 5937 Contra Costa Along Bear Creek road Comment
  UC1191771  Solanum elaeagnifolium Herbert L. Mason, Verne Grant 1946-9-3 13097 Contra Costa 2 mi w of Pittsburg Comment
  JEPS12078  Solanum umbelliferum J. Burtt Davy 1895-4-7 985 Contra Costa Antioch Comment
  JEPS75486  Solanum umbelliferum P. F. Yorks 1974-3-22 118 Contra Costa 1.8 km s of Bear Creek Road on Hampton Road (in Hampton Road Natural Reserve, n of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  UC176058  Solanum umbelliferum Dr. J. H. Goodspeed 1913-5-3 Contra Costa Moraga Valley 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
  CAS-BOT-BC231713  Solanum umbelliferum Paul F. Covel 1940-5-12 s.n. Contra Costa Summit, Mt. Diablo Comment
  UC1051128  Solanum xanti N. Floy Bracelin 1943-8-22 2584 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1051129  Solanum xanti N. Floy Bracelin 1945-7-22 2583 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CDA8722  Solidago californica A. G. Murdock, D. G. Kelch 2003-9-12 198 Contra Costa Carquinez Strait Region; Crockett - Tormey Headlands. Along trail to Superfund overlook. Comment
  UC1999894  Solidago velutina subsp. californica J. C. Semple, B. A. Suripto, T. Ahmed 1990-8-16 9338 Contra Costa E of Berkeley, Berkeley Hills, Grizzly Peak Rd., disturbed area in formley [formerly] wooded slope N of road. Comment
  UC2028125  Soliva sessilis Barbara Ertter with Richard K. Brummitt 1998-5-6 16082 Contra Costa Lower Donner Canyon on north base of Mount Diablo,near Donner Cabin site. 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
  UC407040  Sonchus oleraceus Ira L. Wiggins 1930-4-18 4608 Contra Costa Jersey Island Comment
  CAS-BOT-BC374592  Sonchus oleraceus Ira L. Wiggins 1930-4-18 4608 Contra Costa Jersey Island Comment
  CAS-BOT-BC374594  Sonchus oleraceus R. E. Frenkel 1963-8-18 263 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  UCD92971  Spartina foliosa A. A. Beetle 1940-11-1 2636 Contra Costa San Francisco Bay, near Point Richmond. Comment
  CDA42411  Spartium junceum D. G. Kelch, Vince Guise 2012-7-26 12 .237 Contra Costa Wildcat Canyon Park, Alvarado Unit. Comment
  JEPS111779  Spergula arvensis A. G. Murdock 2004-3-5 214 Contra Costa Martinez - Rankin Open Space Along fire road at north end of park 80 Comment
  UC1948951  Spergula arvensis William J. Ferlatte, L. Maynard Moe 1970-4-27 1256 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC2032829  Spergula arvensis Doran, Andrew Scott 2012-3-20 699 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  CAS-BOT-BC389917  Spergula arvensis R. E. Frenkel 1964-2-22 361 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  UC1795660  Spergula arvensis subsp. arvensis Barbara Ertter, Gary Schoolcraft, Tony Morosco 1996-4-6 14565 Contra Costa Knobcone Point Road northeast of Knobcone Point in Mt Diablo State Park, near junction of north heading spur road, roadside in open oak woodland. Comment
  CAS-BOT-BC390104  Spergularia bocconi Alice Eastwood 1921-4-18 10254 Contra Costa Antioch Comment
  CDA24126  Spergularia macrotheca var. longistyla D. G. Kelch 1992-3-21 1828 -A Contra Costa 2.5 mi. SE of Byron; along RR tracks, N of junction of Holey Rd. and Byron Hwy. 0 Comment
  UC1948956  Spergularia macrotheca var. macrotheca William J. Ferlatte, L. Maynard Moe 1970-4-27 1265 Contra Costa San Francisco Bay: Red Rock Island Comment
  UCD150899  Spergularia marina James A. Neilson Jr. 1972-10-22 3504 Contra Costa Walnut Creek drainage, near mouth of Walnut Creek. Elevation estimated using Google Earth by label maker. 0 Comment
  UC2036957  Spergularia rubra Mary L. Bowerman 1946-2-10 4081 Contra Costa Hard ground by C.C.C. camp. Comment
  CAS-BOT-BC213199  Sphaeralcea Paul F. Covel 1936-5-17 259 Contra Costa South of summit Mt. Diablo. Comment
  POM215114  Stachys ajugoides J. T. Howell 1932-10-16 10818 Contra Costa Near San Ramon. Comment
  JEPS112462  Stachys ajugoides var. rigida D. G. Kelch 2004-4-11 04 .57 Contra Costa Crockett - 5th St. Prairie 85 Comment
  UC25957  Stachys albens Mrs. Brandegee 1882-7-8 Contra Costa Antioch Comment
  JEPS112467  Stachys pycnantha A. G. Murdock 2004-5-28 278 Contra Costa Refugio Valley 120 Comment
  UC691798  Stebbinsoseris heterocarpa Mary L. Bowerman 1933-5-8 2022 Contra Costa n side Rock City Ridge (n side Fossil Ridge); Mount Diablo, , Fossil Ridge Comment
  CAS-BOT-BC386942  Stellaria media Mary L. Bowerman 1932-2-13 1085 Contra Costa Alamo Canyon 365 Comment
  UC1607662  Stellaria nitens Barbara Ertter with Michelle Seidl 1992-3-14 10917 Contra Costa e of Mount Diablo (Morgan Territory Regional Preserve); Morgan Territory Regional Preserve Comment
  CAS-BOT-BC393980  Stellaria nitens John Thomas Howell 1927-3-6 2284 Contra Costa summit of Shell Ridge 243 Comment
  UC2028259  Stellaria pallida Barbara Ertter 1999-6-12 16721 Contra Costa Knobcone Point Road on south side of Mount Diablo, burned chamissal at head of NE fork of Sycamore Creek. Comment
  UC2028016  Stephanomeria elata Barbara Ertter 1997-9-14 15819 Contra Costa Southwest side of Mount Diablo, Wall Point Road on open sandstone ridge northwest of Wall Point/ Comment
  CDA144  Stephanomeria exigua D. G. Kelch, D. A. Weinstein 2007-8-26 7 .553 Contra Costa Carquinez Strait; Ozol Rock, W Martinez. 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
  SEINET10603924  Stipa pulchra Alan A. Beetle 1941-3-28 Beetle 1718 Contra Costa Orinda, in sandy soil of open cut. Comment
  CHSC57360  Streptanthus Willis Ball 1975-3-26 519 Contra Costa Contra Loma Regional Park, in area #3. On hill ca. 100 yds. nw of the dam. 45 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
  UC691125  Streptanthus glandulosus subsp. glandulosus Mary L. Bowerman 1935-5-8 2968 Contra Costa North Road 2 mi from North Gate (just w of chaparral, se exposure); Mount Diablo 237 Comment
  CAS-BOT-BC87341  Streptanthus hispidus H. N. Bolander; Kellock M. D. s.n. Contra Costa Monte De Diablo. Comment
  CAS-BOT-BC87345  Streptanthus hispidus Mrs. E. C. Sutliffe 1920-5-30 s.n. Contra Costa Mount Diablo. Comment
  RSA26397  Streptanthus hispidus J. T. Howell 1941-4-6 s.n. Contra Costa Ridge east of Deer Park, Mt. Diablo Comment
  UC10888  Streptanthus hispidus H. N. Bolander 1866-1 6267 Contra Costa Monte Diablo Comment
  UC188201  Streptanthus hispidus J. G. Lemmon 1878-4-23 Contra Costa side Mt. Diablo Comment
  UCD116027  Streptanthus hispidus Botany 102 Student 1974-4-13 s.n. Contra Costa Marsh Creek Road, near trail Ride ASSO, north peak of Mt. Diablo. 762 Comment
  UC2028454  Stuckenia pectinata Barbara Ertter with Joanne Kerbavaz 2000-8-20 17507 Contra Costa Hidden Pond on south side of Mount Diablo Comment
  CAS-BOT-BC422907  Stylomecon heterophylla Paul F. Covel 1936-5-17 156 Contra Costa Mt Diablo, on trail summit-north peak. Comment
  CAS-BOT-BC422920  Stylomecon heterophylla James McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  JEPS51558  Stylomecon heterophylla W. L. Jepson 1918-6-3 7589 Contra Costa Donner Canyon Mt. Diablo; , Donner Canyon 685 Comment
  JEPS78817  Stylomecon heterophylla Edward Lee 1936-5-24 2156 Contra Costa about 2 mi se Curry Canyon (Morgan Territory, Marsh Creek); Marsh Creek, Morgan Territory Comment
  RSA135424  Stylomecon heterophylla Volney Rattan 1883-04 s.n. Contra Costa Martinez. Comment
  UC112847  Stylomecon heterophylla T. S. Brandegee 1908-4-10 Contra Costa near Antioch; near Antioch Comment
  UC692177  Stylomecon heterophylla Mary L. Bowerman 1931-4-19 749 Contra Costa Mitchell Canyon Mount Diablo; , Mitchell Canyon Comment
  CAS-BOT-BC422906  Stylomecon heterophylla W. W. Carruth 1900-5-1 s.n. Contra Costa Moraga Valley Comment
  LA204633  Symphoricarpos albus J. A. Ewan; 1936-5-3 9500 Contra Costa Wildcat Creek Comment
  JEPS111771  Symphoricarpos mollis D. G. Kelch 2004-5-2 04 .162 Contra Costa Crockett - Edwards Canyon Edwards Canyon, Crockett, Contra Costa County, CA 125 Comment
  JEPS13647  Symphoricarpos mollis Mary L. Bowerman 1933-5-21 2159 Contra Costa s from Curry Canyon (Sycamore Canyon, ridge between two main forks); Mount Diablo, Sycamore Canyon 426 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
  UCD163492  Symphyotrichum lentum D. Slakey; CNPS Volunteers 2015-9-12 225 Contra Costa Browns Island, northern part of Crooked Slough. 0 Comment
  JEPS99582  Symphyotrichum subspicatum Mary Bowerman 1993-11-8 Contra Costa Mount Diablo. by tributary of Pine Creek southerly form just east of Pine Pond; North of tiny pond shown on MDIA map, 4th edition. (NW of Wall Pt. road junction) 243 Comment
  UC912542  Symphyotrichum subulatum Herbert L. Mason 1929-9-21 5439 Contra Costa 1 mi from junction of Borden Highway and road to Antioch Comment
  UCD159500  Symphyotrichum subulatum var. parviflorum D. S. Park 2010-9-11 250 -1 Contra Costa Waterfront Rd. Growing along roadside. Disturbed. Wet. 5 Comment
  CAS-BOT-BC99396  Symphyotrichum subulatum var. parviflorum W. L. Jepson 1891-9-16 s.n. Contra Costa at New Town landing, Lower Sacramento River Comment
  UC2029038  Taraxacum officinale Barbara Ertter 2000-3-30 16901 Contra Costa North base of Mount Diablo, lower Mitchell Canyon ca 1 miles from trailhead, near cottonwoods. Comment
  UCD128119  Tauschia hartwegii P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  JEPS49692  Tellima grandiflora W. L. Jepson 1891-6-9 13461 Contra Costa Fish Ranch Comment
  UC35391  Tetrapteron graciliflorum W. C. Blasdale Mar. 1900 Contra Costa San Pablo 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
  NY185781  Thelypodium rigidum E. L. Greene 1887-4-17 s.n. Contra Costa Comment
  CAS-BOT-BC88257  Thysanocarpus curvipes T. S. Brandegee May. 18. s.n. Contra Costa Antioch. Comment
  CAS-BOT-BC88258  Thysanocarpus curvipes Robert F. Hoover 1935-3-10 309 Contra Costa Antioch sand hills. Comment
  CAS-BOT-BC88253  Thysanocarpus curvipes John Thomas Howell 1934-4-1 11821 Contra Costa Marsh Creek Road southwest of Brentwood. Comment
  CAS-BOT-BC88254  Thysanocarpus curvipes John Thomas Howell 1934-4-8 11821 Contra Costa Marsh Creek Road southwest of Brentwood. Comment
  JEPS54189  Thysanocarpus curvipes Linda Gehringer 1914-3 Contra Costa Brentwood; Sect. 21 Comment
  UC117265  Thysanocarpus curvipes unknown Contra Costa Antioch; Epperson's Comment
  POM300996  Tonella tenella Mary L. Bowerman 1935-5-18 3023 Contra Costa Mount Diablo, Northwest facing slope across the road from, and a little east of, the parking area. 1067 Comment
  JEPS111507  Torilis arvensis D. G. Kelch 2005-5-13 05 .269 Contra Costa Martinez - South Tall hill in South Martinez and North of I-4 96 Comment
  CAS-BOT-BC172934  Toxicodendron diversilobum John Thomas Howell 1933-5-14 11289 Contra Costa Hills east of St. Mary's College Comment
  UCD139844  Toxicoscordion fremontii Robert C. Bechtel 1952-4-12 55 Contra Costa West side Mount Diablo. 914 Comment
  UC1795842  Trichostema lanceolatum Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa 1995-10-22 14530 Contra Costa Three Springs Trail on northeast side of Mt. Diablo, south of crest of Marsh Creek Rd., dried roadside pond, clay. Comment
  UC1129956  Trifolium albopurpureum var. albopurpureum C. M. Belshaw 1936-5-8 2056 Contra Costa Mt. Diablo Mt. Diablo Quadrangle 990 Comment
  UC148547  Trifolium albopurpureum var. albopurpureum Katharine Brandegee 1909-4-24 Contra Costa Antioch Comment
  UC555481  Trifolium albopurpureum var. albopurpureum H. L. Mason 1928-4-26 4384 Contra Costa Berkeley-Oakland hills Comment
  UC692682  Trifolium albopurpureum var. albopurpureum Mary L. Bowerman 1933-4-26 1922 Contra Costa ridge ese the peak (s face); Mt. Diablo, North Peak Comment
  UC692684  Trifolium albopurpureum var. albopurpureum Mary L. Bowerman 1931-4-4 667 Contra Costa w Turtle Rock Comment
  UC630850  Trifolium albopurpureum var. dichotomum Katharine Brandegee 1909-4-24 Contra Costa Antioch Comment
  UC2028277  Trifolium albopurpureum var. dichotomum Barbara Ertter, Susan D'Alcamo 1999-4-18 16503 Contra Costa Bald Ridge Trail on NW side of Mount Diablo summit. Comment
  JEPS107124  Trifolium albopurpureum var. olivaceum Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14225 Contra Costa Mt. Diablo southeast of Walnut Creek, serpentine knoll ca 1/2 air-mile north of Curry Point. 487 Comment
  UC1795796  Trifolium albopurpureum var. olivaceum Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14225 Contra Costa Mt. Diablo southeast of Walnut Creek, serpentine knoll ca 1/2 air-mile north of Curry Point. 487 Comment
  CDA27906  Trifolium bifidum D. G. Kelch, A. G. Murdock 2005-4-2 5 .105 Contra Costa Carquinez Strait Region; Alhambra Valley. EBMUD land. North of intersection of Alhambra Valley Road and Castro Ranch Road. Comment
  RSA184980  Trifolium bifidum L. S. Rose 1966-4-22 66030 Contra Costa Donner Canyon, north slope of Mount Diablo, south of Clayton 213 Comment
  UC2070438  Trifolium bifidum Barbara Ertter with Dan Norris 2001-4-8 17591 Contra Costa Lime Ridge Open Space east of Walnut Creek, path northwest of summit installation. Comment
  UC146057  Trifolium bifidum var. decipiens Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  UC485393  Trifolium bifidum var. decipiens J. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  POM203632  Trifolium ciliolatum J. T. Howell 11245 Contra Costa Hills east of St. Marys College. Comment
  UC2028184  Trifolium ciliolatum Barbara Ertter 1998-5-3 16066 Contra Costa SE end of Wall Point Road on southwest flank of Mount Diablo. Comment
  UC165575  Trifolium depauperatum var. amplectens J. Burtt Davy Apr 7-8 1895 944 Contra Costa Antioch Comment
  UC55886  Trifolium depauperatum var. amplectens H. M. Hall 1901-3-23 1706 Contra Costa Martinez Comment
  UC630976  Trifolium depauperatum var. amplectens unknown 1928-4-19 10043 Contra Costa near Golf Links; Byron Hot Springs Comment
  RSA537536  Trifolium depauperatum var. amplectens Barbara Ertter, Jim Jokerst, Dave Magney 1989-4-5 8134 Contra Costa Alkali sink W and adjacent to Clifton Court Forebay, ca 15 air miles SW of Stockton. Comment
  JEPS2905  Trifolium depauperatum var. depauperatum E. L. Greene April, 1884 Contra Costa Byron Comment
  PGM3951  Trifolium depauperatum var. depauperatum Vern Yadon 1998-4-26 Contra Costa Byron Hot Springs Rd near Airport, 1/4 mi fr end of Byron Hot Springs Rd Comment
  UCSC011137  Trifolium depauperatum var. laciniatum R. Morgan 2015-4-11 6740 Contra Costa Byron Comment
  UCSC011138  Trifolium depauperatum var. laciniatum R. Morgan 2015-4-11 6739 Contra Costa Byron Comment
  UC1543246  Trifolium depauperatum var. truncatum Donald G. Nelson 1937-3-30 476 Contra Costa a few mi s Byron (on rr tracks paralleling the hwy, on rd ro Tracy) Comment
  UC165577  Trifolium depauperatum var. truncatum J. Burtt Davy 1895-1 938 Contra Costa Antioch Comment
  UC555355  Trifolium depauperatum var. truncatum H. L. Mason 1929-3-15 5061 Contra Costa ca 5 mi from Brentwood (Marsh Creek Rd) Comment
  UC2028948  Trifolium depauperatum var. truncatum Barbara Ertter 2003-4-9 18143 Contra Costa Shell Ridge Open Space on west base of Mount Diablo, Upper Buck Trail on SW side of Deer Hill. Comment
  JEPS127103  Trifolium dubium Lowell Ahart, Josephine Guardino 2016-4-19 20757 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  RSA721747  Trifolium dubium Barbara Ertter, Mary Bowerman 1995-5-7 14023 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, along road through annual grassland with scattered blue oak south of Marsh Creek. Road. summit. 305 Comment
  JEPS65864  Trifolium fucatum W. L. Jepson 1896-5-29 13720 Contra Costa Wild Cat Creek Berkeley Comment
  JEPS73328  Trifolium fucatum Edward Lee 1935-3-29 1311 Contra Costa e Kirker Pass (Donovan Rd, w watershed of Kirker Creek) Comment
  UC16537  Trifolium fucatum J. Burtt Davy 1900-3-24 6531 Contra Costa Stege Comment
  UC70198  Trifolium fucatum J. Burtt Davy May 1898 Contra Costa Danville region of Mount Daiblo Comment
  UC419042  Trifolium fucatum H. E. and S. T. Parks 1930-4-1 542 Contra Costa along hwy (in ditches); San Ramone Comment
  UC400157  Trifolium gracilentum Ynes Mexia 1929-4-21 2375 Contra Costa Moraga Valley Comment
  UC555459  Trifolium gracilentum H. L. Mason 1932-3-20 6844 Contra Costa Antioch sand hills Comment
  POM300710  Trifolium gracilentum Unspecified 1933-5-9 2041 Contra Costa East of Pioneer Camp. Comment
  CDA27955  Trifolium gracilentum var. gracilentum D. G. Kelch, A. G. Murdock 2005-4-15 5 .151 Contra Costa Carquinez Strait Region; Rodeo Creek. EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  JEPS100105  Trifolium hirtum G. Smick 2003-4-8 GAS 124 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA721591  Trifolium hirtum Mary L. Bowerman 1995-5-21 s.n. Contra Costa Mount Diablo. Wall Pt. fire road perhaps 1/2 mile from South Gate Rd. Comment
  CDA15258  Trifolium hybridum G. F. Hrusa, D. Crowe 1998-5-8 14389 Contra Costa Sacramento Delta; E end of Dow Chemical property in Pittsburg. Comment
  UC2028947  Trifolium hybridum Barbara Ertter 2000-7-16 17391 Contra Costa lower Pine Creek in Diablo Foothills Regional Park. Comment
  UCD35902  Trifolium microcephalum Beecher Crampton 1966-4-26 7666 Contra Costa ca. 2.5 miles west of Martinez on the road to Crockett. Comment
  JEPS107129  Trifolium microdon Barbara Ertter, Lisa Schultheis 1995-4-27 14008 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; northwest side of open grassy ridge at end of Arbolado Dr. 121 Comment
  UC400151  Trifolium microdon Ynes Mexia 1929-4-21 2380 Contra Costa Moraga Valley Comment
  UC692640  Trifolium obtusiflorum Mary L. Bowerman 1938-6-14 3678 Contra Costa Maple Spring Mount Diablo Comment
  UC16685  Trifolium oliganthum J. Burtt Davy 1895-4-13 1002 Contra Costa San Pablo Creek Comment
  UC2070437  Trifolium oliganthum Barbara Ertter with Dan Norris 2001-4-8 17592 Contra Costa Lime Ridge Open Space east of Walnut Creek, path northwest of summit installation. Comment
  RSA721202  Trifolium olivaceum var. olivaceum Barbara Ertter 1995-5-29 14225 Contra Costa Mt. Diablo southeast of Walnut Creek, serpentine knoll ca 1/2 airmile north of Curry Point 488 Comment
  UC1819059  Trifolium variegatum Barbara Ertter, Mary Bowerman et al. 1995-5-7 14047 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, grassy flat, roadside vegetation, clay substrate. Comment
  SEINET4178511 Image available Trifolium willdenovii P. B. Kennedy 1928-1 10036 Contra Costa Byron Comment
  UC555578  Trifolium willdenovii H. L. Mason 1929-4-25 5206 Contra Costa Marsh Creek Rd Comment
  UC630906  Trifolium willdenovii P. B. Kennedy 1907-5-5 Contra Costa Lake Merritt Oakland Comment
  UC692646  Trifolium willdenovii Mary L. Bowerman 1933-5-11 2083 Contra Costa Inner Black Hills Mount Diablo Comment
  UC16828  Trifolium wormskioldii Jos. Burtt Davy 1900-6-7 6663 Contra Costa near Martinez Comment
  UC2028570  Triglochin scilloides Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15518 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UCD139903  Trillium chloropetalum Morris Halperin 1929-4-21 s.n. Contra Costa St. Mary's College Campus. Comment
  UC367109  Trillium ovatum J. G. Lemmon Apr 1878 Contra Costa [Mount Diablo] Comment
  JEPS111766  Triodanis biflora Christopher Thayer 1995-6-5 Contra Costa Pinole Peak 304 Comment
  UC2070652  Triodanis biflora Barbara Ertter with David Gowen and Mike Park 2004-4-13 18351 Contra Costa Black Diamond Mines Regional Park south of Pittsburg, trail system in chaparral/woodland S of Somersville townsite, Chaparral Loop Trail just across footbridge from Manhattan Trail cut-off. Comment
  SEINET10458812  Triodanis biflora Joseph W. Congdon 1896-5-30 Congdon s.n. Contra Costa Mount Diablo Comment
  UCR139223  Triphysaria eriantha Joseph A. Ewan 1934-4-8 8762 Contra Costa San Francisco Bay Region, Head of Hog Canyon, S slope of Mount Diablo 640 Comment
  JEPS15155  Triphysaria pusilla C. M. Belshaw 1936-5-7 2046 Contra Costa 2 mi s San Ramon; Mt. Diablo Quad. Comment
  JEPS25139  Triteleia laxa G. Thomas Robbins 1959-5-16 4009 Contra Costa just n Pt. Orient (on w slope of Potrero Hills, Richmond, overlooking San Francisco Bay); Richmond, Potrero Hills Comment
  CAS-BOT-BC526332  Triteleia laxa A. A. Heller 1908-4-17 8902 Contra Costa Hills three miles south of Antioch 18 Comment
  RSA760668  Triteleia laxa William J. Ferlatte, L. Maynard Moe 1970-4-27 1229 Contra Costa San Francisco Bay, Red Rock Island. Comment
  SEINET10533670  Triteleia laxa A. Arthur Heller 1908-4-17 Heller 8902 Contra Costa Hills three miles south of Antioch, 60 feet. Comment
  JEPS17167  Tropidocarpum capparideum S. Galen Smith and Donald Stone 1957-3-30 2867 Contra Costa 3 mi se Byron (far western end of field just n of the Holey Road); Byron Road 5 Comment
  SEINET8727865 Image available Tropidocarpum capparideum Robert F. Hoover 1936-1 806 Contra Costa Byron Hot Springs. Comment
  CAS-BOT-BC67403  Tropidocarpum gracile Alice Eastwood 1914-3-14 3824 a Contra Costa Byron Springs. Comment
  CAS-BOT-BC67404  Tropidocarpum gracile Alice Eastwood 1921-4-18 10295 Contra Costa Antioch. Comment
  CAS-BOT-BC67407  Tropidocarpum gracile Lewis S. Rose 1934-3-21 34066 Contra Costa 6 miles east of Clayton. Comment
  JEPS68961  Tropidocarpum gracile Edward Lee 1935-3-10 1239 Contra Costa e. Antioch (Antioch Sand Dunes); Antioch Sand Dunes Comment
  UC857586  Tropidocarpum gracile Lewis S. Rose 1940-4-30 40249 A Contra Costa 5 mi e Clayton (fields); Marsh Creek 60 Comment
  UC1241770  Typha Malcolm A. Nobs and S. Galen Smith 1949-6-28 879 Contra Costa on road to Martinez about two mi s Crockett Comment
  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
  JEPS68942  Umbellularia californica Edward Lee 1935-2-10 1270 Contra Costa Wildcat Creek; Berkeley, Berkeley Hills Comment
  UC1126330  Umbellularia californica R. W. Lundh 1933-3-1 203 Contra Costa Eastport 243 Comment
  UC691943  Umbellularia californica Mary L. Bowerman 1930-8-31 453 a Contra Costa Mount Diablo, Sloan Road e of the Sloan place (Inner Black Hills) Mount Diablo Comment
  CDA37275  Umbellularia californica D. G. Kelch 2009-12-21 9 .712 Contra Costa Vicinity of Richmond; canyon northeast of Alvarado Park. 0 Comment
  CAS-BOT-BC381826  Uropappus lindleyi Alice Eastwood 1923-5-4 11727 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC381827  Uropappus lindleyi Mary L. Bowerman 1931-4-4 632 Contra Costa Mount Diablo. Two miles by road from North Gate Comment
  CAS-BOT-BC381828  Uropappus lindleyi Mary L. Bowerman 1935-4-17 2831 Contra Costa Mount Diablo. West road 2 miles from entrance 237 Comment
  JEPS36207  Uropappus lindleyi W. L. Jepson 1922-5-23 9669 Contra Costa n slope Mt. Diablo; n slope Mt. Diablo Comment
  UC1795024  Uropappus lindleyi R. K. Brummitt and B. Ertter 1998-5-13 19837 Contra Costa Mt Diablo, just below summit on S side 1000 Comment
  UC691469  Uropappus lindleyi Mary L. Bowerman 1931-4-5 682 Contra Costa s Russelman Park (Mount Diablo); Mount Diablo 381 Comment
  UC691782  Uropappus lindleyi Mary L. Bowerman 1933-5-18 2137 Contra Costa Mount Diablo Comment
  UCR254746  Urtica dioica Peter Rubtzoff 1968-9-18 5963 Contra Costa North Gate Road, c. 5 miles NW of Mt. Diablo State Park north entrance 58 Comment
  CAS-BOT-BC404064  Urtica dioica subsp. holosericea Mary L. Bowerman 1931-8-29 1032 Contra Costa Mount Diablo. Sheep Camp Spring, by west road Comment
  RSA446066  Urtica dioica subsp. holosericea M. B. Dunkle 1931-7-18 2504 Contra Costa Strawberry Canyon, Berkeley 152 Comment
  CAS-BOT-BC199243  Vaccinium ovatum H. E. McMinn 1925-1-1 s.n. Contra Costa Head of San Leandro Creek Comment
  UC1050825  Verbascum N. Floy Bracelin 1943-6-20 1346 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CDA9519  Verbena brasiliensis D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .248 Contra Costa CA Delta; Along the old San Joaquin River Channel, S of Clifton Court Forebay and SE of Byron. Comment
  UC407386  Veronica peregrina subsp. xalapensis Ira L. Wiggins 1930-4-17 4581 Contra Costa 1/4 mi s of Byron Comment
  JEPS12699  Viburnum ellipticum Mary L. Bowerman 1933-5-21 2162 Contra Costa s from Curry Canyon (Sycamore Canyon, ridge between two main forks w side); Mount Diablo, Sycamore Canyon 365 Comment
  JEPS113073  Viburnum rigidum Barbara Ertter 2001-10-29 17810 Contra Costa Tilden Regional Park, Selby Trail and Wildcat Gorge upstream from Lake Anza, understory of mixed forest. Occasional lax shrub to 2--3 m tall. Comment
  CDA23061  Vicia americana D. G. Kelch, D. A. Weinstein 2008-4-25 8 .086 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
  JEPS66137  Vicia americana var. americana W. L. Jepson May 23 1891-May 24 1891 13614 Contra Costa Mt. Diablo Comment
  UC1130189  Vicia americana var. americana C. M. Belshaw 1936-5-12 2109 Contra Costa 3.7 mi ene Tassajero; Mt. Diablo Quad. 670 Comment
  UC692688  Vicia americana var. americana Mary L. Bowerman 1931-3-21 589 Contra Costa Sycamore Canyon; Mount Diablo 335 Comment
  CDA28800  Vicia benghalensis D. G. Kelch, Jessica Kolman 2009-5-29 9 .31 Contra Costa Carquinez Strait; Pinole Valley Park, near ridgetop. Comment
  UC1795744  Vicia benghalensis Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14220 Contra Costa Mt. Diablo southeast of Walnut Creek, roadside at Curry Point. 541 Comment
  CDA28333  Vicia sativa subsp. nigra D. G. Kelch 2007-4-29 7 .207 Contra Costa Carquinez Strait; Richmond; Chevy s Hill N. Hilltop Dr. Comment
  JEPS25122  Vicia sativa subsp. nigra G. Thomas Robbins 1959-4-18 3988 Contra Costa about 0.5 mi e Pt. San Pablo (overlooking San Pablo Bay, Richmond); Richmond 7 Comment
  UC1795635  Vicia sativa subsp. nigra Barbara Ertter, Chris Thayer 1995-4-25 14001 Contra Costa Southeast side of Mt. Diablo northeast of Danville, roadside at Curry Point. Comment
  JEPS99510  Vicia villosa subsp. varia Mary Bowerman 1994-4-17 Contra Costa Mount Diablo. Path (graveled road) from end of Regency Drive, Clayton. Entry to Donner Canyon. Comment
  UC1300882  Vicia villosa subsp. varia Helen K. Sharsmith 1962-4-18 4946 Contra Costa road above Carquinez Straits (Crockett-Martinez road); San Francisco Bay Region 60 Comment
  UCD109027  Vicia villosa subsp. varia Rimo Bacigalupi; L. Heckard, P. Silva 1962-4-16 8439 Contra Costa Adjacent to U.S. Highway 40. 2 miles south of Pinole Junction. Comment
  UC2029037  Vinca major Barbara Ertter 2000-3-30 16902 Contra Costa North base of Mount Diablo, lower Mitchell Canyon ca 1 miles from trailhead. Comment
  UC1121599  Viola pedunculata H. S. Yates 1936-3-14 5355 Contra Costa 1/2 mi n of mouth of Perkins Canyon 228 Comment
  UC1121614  Viola pedunculata R. C. Wilson 1935-3-29 147 Contra Costa 1/2 mi s of Cave Pit 548 Comment
  UC2032828  Viola pedunculata Doran, Andrew Scott