Search Results — 2000 specimen records retrieved (1349 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UC1050316  Abelia triflora N. Floy Bracelin 1941-8-24 1583 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS112392  Acacia dealbata Dean G. Kelch and Andrew G. Murdock 2005-5-13 05 .232 Contra Costa Crockett; County: Contra Costa; West Crockett, below Dead Fish Restaurant along Carquinez Straight. Comment
  CAS-BOT-BC177068  Acacia melanoxylon Walter Knight 1978-7-13 3102 Contra Costa Browns Island Comment
  UC1051238  Acacia retinodes N. Floy Bracelin 1942-9-13 2291 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California 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
  SD45088  Acer macrophyllum W. Jones 1927-6-2 Contra Costa Crockett Comment
Read comments
Jul 11 2010
  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
  UCSB11596  Acer macrophyllum Grah, Nancy 1962-4-14 Contra Costa Corner of Lombardy Lane and Sleepy Hollow Lane, Orinda 152 Comment
  JEPS111583  Acer negundo D. G. Kelch 2005-4-17 05 .155 Contra Costa Hercules Hwy 80 west between Cummings Skyway and Route 4 exit 40 Comment
  CAS-BOT-BC334184  Acer negundo var. californicum John Thomas Howell 1925-11-7 1549 Contra Costa Between Pinehurst and Canyon Station, San Leandro Canyon Comment
  UC1301055  Achillea millefolium Helen K. Sharsmith 1962-4-18 4942 Contra Costa Crockett-Martinez road above Carquinez Straits; San Francisco Bay Region 60 Comment
  RSA603777  Achillea millefolium Joseph A. Ewan 1936-5-3 9508 Contra Costa Wildcat Creek Comment
  JEPS36721  Achyrachaena mollis Anna E. Ehlers 1920-5-23 582 Contra Costa Trampas Canon Comment
  UC1301058  Achyrachaena mollis Helen K. Sharsmith 1963-4-7 5298 Contra Costa near Byron; San Francisco Bay 7 Comment
  UCD128392  Achyrachaena mollis Morris Halperin 1929-4-21 s.n. Contra Costa Franklin Canyon. Comment
  UCD104481  Acmispon wrangelianus Rimo Bacigalupi; G. T. Robbins 1956-5-11 5639 Contra Costa Between State Highway no. 4 (Franklin Canyon Road) and Santa Fe Ry. Right of way, 1/4 mile east of jnct. Of this rd. with U.S. 40, 1.3 miles east of Pinole. 22 Comment
  UCD158715  Acroptilon repens James A. Neilson Jr. 1974-8-13 3472 Contra Costa Bradford Island. (Elevation estimated using Google Earth by label maker.) 0 Comment
  UC12009  Adenostoma fasciculatum W. L. Jepson 1891-5-23 Contra Costa Mt. Diablo Comment
  UC691159  Adenostoma fasciculatum Mary L. Bowerman 1930-6-5 256 Contra Costa w. (North Rd.) 5.8 mi. from entrance Mt. Diablo Comment
  UC721201  Adenostoma fasciculatum Rogers McVaugh 1941-7-29 6169 Contra Costa 5 mi. e. Berkeley (Moraga Ridge); Moraga Ridge 304 Comment
  SEINET11906748  Adenostoma fasciculatum E. L. Core 1952-1 s.n. Contra Costa Mt. Diablo Comment
  CDA42503  Adiantum jordanii A. G. Murdock 2004-2-12 206 Contra Costa Franklin Canyon - McHarry Ranch Road. 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
  UC42032  Adiantum jordanii Ivar Tidestrom vi, 1895 Contra Costa canyon near Crockett Comment
  CAS-BOT-BC206881  Aesculus californica Barrett Anderson 1987-4-30 3494 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD. 125 Comment
  CHSC22658  Aesculus californica Robert A. Schlising 1965-1-24 2740 Contra Costa North of Briones Reservoir along Hampton Road; 1.1 mi S of Jct with Garcia Ranch Road. Comment
  OBI49101  Aesculus californica Joseph Andorfer Ewan 1936-5-31 9715 Contra Costa Wildcat Crk Comment
  SEINET209195 Image available Agoseris grandiflora W. L. Jepson 1922-5-26 Contra Costa North Berkely hills. Comment
  UC400161  Agoseris grandiflora var. grandiflora Ynes Mexia 1929-4-21 2370 Contra Costa in open fields of grass Moraga Valley Comment
  SBBG115406  Agropogon littoralis B. Crampton 1959-9-3 5454 Contra Costa ca. 2 mi N of Orinda, Bear Crk, East Bay Municipal Utilities District Project Comment
  SEINET10789684  Agropyron inerme Thomas B. Croat 1966-6-18 Croat 1989 Contra Costa Frank's Tract, Bethel Island; 7 miles W of Oakley, lakeside & marsh habitats. Comment
  RSA666409  Agrostis avenacea Barbara Ertter, Brad Olson 1991-9-28 10831 Contra Costa San Pablo Reservoir between Orinda and El Sobrante 91 Comment
  UC2028527  Agrostis exarata Barbara Ertter 1997-11-1 15884 Contra Costa South side Mount Diablo, end of spur road east of Knobcone Point, below powerline crossing at head of Alamo Creek drainage. Comment
  CDA42431  Agrostis hallii D. G. Kelch 2012-6-9 12 .092 Contra Costa Carquinez Strait Region; East of Crockett; Bull Valley Trail. Comment
  CAS-BOT-BC138661  Agrostis stolonifera Walter Knight; Joanne Dean 1978-8-14 3172 Contra Costa Browns Island. Comment
  RSA0027413  Agrostis stolonifera Barbara Ertter, Richard K. Rabeler, Tony Morosco 1997-6-10 15670 Contra Costa Martinez Regional Shoreline, south edge of Carquinez Strait. Comment
  UC2028390  Alisma lanceolatum Barbara Ertter with Tony Morosco 1998-7-11 16375 Contra Costa Antioch Regional Shoreline under south end of Antioch Bridge, edge of water on riprap Comment
  POM164980  Allenrolfea occidentalis Jos Burtt Davy 1898-05 s.n. Contra Costa Byron Springs, Mt. Diablo region. Comment
  UC116546  Allenrolfea occidentalis K. Brandegee Oct. 1887 Contra Costa Antioch Comment
  UCR142797  Allenrolfea occidentalis E. E. Stanford 1930-1 1871 Contra Costa Sacramento Valley, Near Old River Comment
  CAS-BOT-BC175363  Allenrolfea occidentalis E. E. Stanford 1930-8-1 1871 Contra Costa Near Old River Comment
  RSA14970  Allium falcifolium L. S. Rose 1935-5-16 35164 Contra Costa Mt. Diablo. Comment
  RSA367158  Allium falcifolium L. S. Rose 1935-5-16 35164 Contra Costa Mt. Diablo. Comment
  UC692023  Allium falcifolium Mary L. Bowerman 1930-6-14 333 Contra Costa summit Mount Diablo Mount Diablo Comment
  CAS-BOT-BC469111  Allium falcifolium L. R. Abrams 1921-5-25 2038 Contra Costa Summit Mt. Diablo Comment
  RSA26408  Allium falcifolium J. T. Howell 1941-4-6 16179 Contra Costa Ridge east of Deer Park, Mt. Diablo Comment
  JEPS112495  Allium neapolitanum D. G. Kelch 2005-3-24 05 .55 Contra Costa Southern Pt. Pinole 3 Comment
  CAS-BOT-BC472778  Allium neapolitanum Walter Knight 1979-4-12 3448 Contra Costa Grangers Wharf, Martinez Regional Shoreline Comment
  JEPS95266  Allium paniculatum var. paniculatum Doris E. Baltzo 1999-7-20 Contra Costa 2092 Ahneita Drive, Pleasant Hill Comment
  UC142793  Allium serra Alice Eastwood 1895-4-8 Contra Costa Antioch Comment
  UC767477  Allium serra R. F. Hoover 1938-3-5 2818 Contra Costa mouth of Kirker Creek canyon Kirker Creek canyon Comment
  CAS-BOT-BC475535  Allium serra R. Bacigalupi 1927-5-13 1570 Contra Costa Along Danville - Mt. Diablo Road near Garden of the Jungle Gods 518 Comment
  CAS-BOT-BC475541  Allium serra Paul F. Covel 1938-5-8 1529 Contra Costa Low south slope Mount Diablo Comment
  UC692021  Allium unifolium Mary L. Bowerman 1933-5-22 2165 Contra Costa flat at head of n ridge w 1970; Mount Diablo, Inner Black Hills Comment
  UC691610  Allophyllum divaricatum Mary L. Bowerman 1932-4-16 1340 Contra Costa little s. of 1682 Eagle Point ridge; Mt. Diablo Comment
  JEPS108354  Allophyllum gilioides David Gowen 2005-4-3 223 Contra Costa Mt. Diablo State Park. Rhine Canyon just below Devils Elbow. Comment
  UC692034  Alnus rhombifolia Mary L. Bowerman 1931-10-13 1058 Contra Costa Alamo Canyon Mount Diablo 259 Comment
  UC691946  Amaranthus albus Mary L. Bowerman 1932-8-27 1515 Contra Costa s of Turtle Rock; Mt. Diablo Comment
  UC2027977  Amaranthus albus Barbara Ertter with Mary Bowerman 1996-11-1 15397 Contra Costa North base of Mount Diablo, downstream from Mitchell Canyon parking lot. Comment
  POM300589  Amaranthus californicus Mary L. Bowerman 1935-9-13 3343 Contra Costa Frog Pond Comment
  CDA22507  Amaranthus deflexus D. G. Kelch, Mike Park 2008-9-1 8 .301 Contra Costa Carquinez Strait; Lonetree Point. Rodeo Shoreline Park. Rodeo. Comment
  UC1585978  Amaranthus deflexus Barbara Ertter with Elizabeth Neese 1988-10-15 7973 Contra Costa w of I-580 (jct of Central Ave and Rydin Road, El Cerrito); El Cerrito Comment
  RSA537530  Amaranthus deflexus Barbara Ertter, Elizabeth Neese 1988-10-15 7973 Contra Costa West of I-580 in El Cerrito, junction of Central Ave. and Rydin Road Comment
  JEPS25151  Ambrosia chamissonis G. Thomas Robbins with John Weiler 1959-5-23 4021 Contra Costa on breakwater (nw extension) Brooks Island; San Francisco Bay, Richmond Comment
  CAS-BOT-BC55590  Ambrosia psilostachya Walter Knight 1965-9-7 1167 Contra Costa San Joaquin River at Antioch sand dunes Comment
  UC1584662  Ambrosia psilostachya Jerry Powell 1990-8-29 1585 Contra Costa Antioch National Wildlife Refuge Comment
  JEPS45147  Amelanchier utahensis W. L. Jepson Oct 1909 3499 Contra Costa n end Moraga Ridge; Oakland Hills Comment
  UC24599  Amsinckia J. Burtt Davy 1895-4-7 919 Contra Costa Antioch Comment
  CAS-BOT-BC222224  Amsinckia Alice Eastwood; John Thomas Howell 1936-4-19 2143 Contra Costa At Antioch Comment
  CAS-BOT-BC222235  Amsinckia John Thomas Howell 1933-3-29 10912 Contra Costa Nortonville hills Comment
  CAS-BOT-BC222303  Amsinckia douglasiana A. A. Heller 1938-4-9 15016 Contra Costa 3 miles southwest of Antioch Comment
  JEPS111839  Amsinckia intermedia D. G. Kelch 2004-3-5 04 .11 Contra Costa Sky Ranch Dutra Fire Road. Franklin Canyon 90 Comment
  UC1191046  Amsinckia intermedia R. Bacigalupi and Francia Chisaki 1957-3-27 912 Contra Costa 0.1 mi nw of crossing with Empire Avenue (field along Neroly Road) 24 Comment
  UCD119619  Amsinckia intermedia John Thomas Howell 1933-5-14 11224 Contra Costa St. Mary's College. Comment
  UC1084624  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
  UC762105  Amsinckia lunaris R. F. Hoover 1939-5-20 4105 Contra Costa lower end of San Pablo Resevoir Comment
  SEINET11263173  Amsinckia lunaris Barbara Ertter, Chris Thayer 1993-5-7 11707 Contra Costa Ca. 1/2 mile N of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land east of Tilden Park.; 0 457 Comment
  UC2012977  Amsinckia lunaris Barbara Ertter with Chris Thayer 1993-5-7 11707 Contra Costa Ca 1/2 mile north of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land east of Tilden Park. Comment
  UC1301078  Amsinckia lycopsoides Helen K. Sharsmith 1963-4-7 5294 Contra Costa near Oakley s of Antioch; San Francisco Bay Region 15 Comment
  UC2027923  Amsinckia lycopsoides Barbara Ertter, Dan Norris 2001-4-15 17616 Contra Costa Diablo Foothills Regional Park, Stonegate Trail near Foothills Trail junction. Comment
  UCD119723  Amsinckia lycopsoides R. Bacigalupi; Francia Chisaki 1957-3-27 910 Contra Costa Rolling plain along Somersville road between Borden Highway and Southern Pacific Railway, 0.75 mile west of Antioch. 19 Comment
  UC2028032  Amsinckia menziesii Barbara Ertter 1998-4-4 15946 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, SE of Indian Valley School. Comment
  CAS-BOT-BC26962  Amsinckia strigosa Alice Eastwood 1914-3-14 3773 Contra Costa Byron Springs Comment
  JEPS25509  Amsinckia tessellata var. tessellata R. F. Hoover 1938-3-25 2894 Contra Costa Markley Canyon Comment
  UC479952  Amsinckia tessellata var. tessellata Katharine Brandegee May 1892 Contra Costa Antioch Comment
  CDA5474  Anagallis arvensis A. G. Murdock, D. G. Kelch 2004-3-19 215 Contra Costa Carquinez Strait Region; Luzon. Sycamore Avenue just east of Rodeo/Hercules where train crosses Highway 4 (Luzon). Comment
  JEPS127041  Anagallis arvensis Lowell Ahart, Josephine Guardino 2016-4-19 20784 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  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
  CAS-BOT-BC45254  Ancistrocarphus filagineus Brandegee s.n. Contra Costa Antioch Comment
  UC691813  Ancistrocarphus filagineus Mary L. Bowerman 1932-4-9 1321 Contra Costa firebreak on large spur which heads into Sycsamore Canyon Inner Black Hills; Mount Diablo Comment
  POM300727  Androsace elongata subsp. acuta Mary L. Bowerman 1932-3-12 1116 Contra Costa Alamo Canyon: 50 feet above stream. 366 Comment
  UC4888  Anemopsis californica W. L. Jepson May 23 1891-May 24 1891 Contra Costa near Mount Diablo Comment
  UC672438  Anemopsis californica Herbert L. Mason 1929-9-21 5437 Contra Costa 3 mi above Clayton (Marsh Creek Road); Marsh Creek Road Comment
  UCD137881  Anemopsis californica Walter Knight; Irja Knight 1977-6-18 s.n. Contra Costa 2 miles from Dutch Slough on Jensey Island Road, near Oaklay. Comment
  UC692562  Angelica californica Mary L. Bowerman 1935-6-21 3149 Contra Costa Mount Diablo, e fork of Arroyo del Cerro Arroyo del Cerro; Mount Diablo, Arroyo del Cerro 274 Comment
  JEPS111664  Anthemis cotula A. G. Murdock 2004-5-28 302 Contra Costa Hercules - Carbon 50 Comment
  UC1594182  Anthemis cotula Jerry Powell 1992-6-17 1692 Contra Costa Richmond Field Station Comment
  UC40554  Anthemis cotula Brewer May 1862 1177 Contra Costa Comment
  UC1050713  Antirrhinum majus subsp. tortuosum N. Floy Bracelin 1941-4-13 1137 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  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
  JEPS112078  Aphanes occidentalis D. G. Kelch 2003-4-3 03 .347 Contra Costa Cummings Skyway South of Cummings Skyway and Crockett Blvd 134 Comment
  JEPS45617  Aphanes occidentalis W. L. Jepson 1931-4-5 15720 Contra Costa Nortonville 396 Comment
  UC2027940  Apiastrum angustifolium Barbara Ertter with Tony Morosco and other CNPS members 2001-5-6 17621 Contra Costa Northwest flank of Mount Diablo, trail on west face of Black Point. Comment
  CAS-BOT-BC392088  Aquilegia formosa John Thomas Howell 1933-5-14 11253 Contra Costa Hills east of St. Mary's College Comment
  UC1795686  Aquilegia formosa Barbara Ertter, Mary L. Bowerman 1994-6-19 12840 Contra Costa Mt. Diablo State Park east of Walnut Creek; Muir Picnic Area on Summit Road, Comment
  UC8999  Aquilegia formosa W. H. Brewer 1862-5-23 1156 Contra Costa se area Mount Diablo Comment
Read comments
Nov 28 2009
  UC9004  Aquilegia formosa G. Survey 1862-5-23 1156 Contra Costa Mount Diablo Comment
Read comments
Jan 20 2011
  UCD117499  Arbutus menziesii Morris Halperin 1929-4-21 s.n. Contra Costa St. Mary's College Campus. Comment
  UC2028013  Arceuthobium campylopodum Barbara Ertter 1997-11-1 15877 Contra Costa South side Mount Diablo, Knobcone Point Road east of junction with Black Hawk Ridge Road. Comment
  UC615582  Arceuthobium campylopodum Beryl O. Schreiber 1933-10-5 937 Contra Costa rd to Mt Diablo Comment
  RSA139994  Arctostaphylos andersonii var. pallida R. C. Wilson 1935-2-26 105 Contra Costa One mile southwest of Nortonville. 442 Comment
  CAS-BOT-BC24106  Arctostaphylos auriculata Alice Eastwood 1903-2-22 3161 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC24109  Arctostaphylos auriculata Alice Eastwood; John Thomas Howell 1936-4-19 2130 Contra Costa Nortonville Comment
  CAS-BOT-BC24113  Arctostaphylos auriculata Brandegee 1889-1-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC24115  Arctostaphylos auriculata Mary L. Bowerman 1932-9-5 1546 Contra Costa Inner Black Hills: Near fire trail which runs south from large spur (on Meridian) heading into Sycamore Canyon. Comment
  CAS-BOT-BC24120  Arctostaphylos auriculata Alice Eastwood 1922-3-17 11083 Contra Costa Mt. Diablo Comment
  JEPS19884  Arctostaphylos auriculata W. L. Jepson 1922-5-23 9662 Contra Costa Head of Sycamore Creek Monte Diablo Comment
  POM131658  Arctostaphylos auriculata Alice Eastwood 1903-2-22 3161 Contra Costa Mt Diablo Comment
  POM203167  Arctostaphylos auriculata L. S. Rose 1934-2-28 34039 Contra Costa 8 miles NE Danville, S slope of Mt. Diablo. Comment
  RSA15419  Arctostaphylos auriculata Alice Eastwood, John Thomas Howell 1936-4-19 2130 Contra Costa Nortonville. Comment
  RSA622481  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27594 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments
Jan 30 2013
  RSA622487  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27599 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments
Jan 30 2013
  UC1120859  Arctostaphylos auriculata R. W. Lundh 1932-8-24 138 Contra Costa 2 mi s Mt. Diablo (Rock City); Mt. Diablo Quadrangle 502 Comment
  UC1120860  Arctostaphylos auriculata H. A. Jensen 1938-10-27 456 Contra Costa head of Sycamore Creek Mt. Diablo Quadrangle 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
  UC75346  Arctostaphylos auriculata Alice Eastwood 1903-2-22 3161 Contra Costa Mt. Diablo Comment
Read comments
Aug 25 2011
  UCD50264  Arctostaphylos auriculata Roman Gankin 1968-11-14 1309 Contra Costa Ca. 300 yds. above the road at Somersville. Comment
  CAS-BOT-BC23551  Arctostaphylos crustacea Walter Knight; Irja Knight 1980-3-16 3715 Contra Costa Sobrante Ridge between Heavenly Ridge Land and Castro Ranch Road. Comment
  CDA29577  Arctostaphylos crustacea D. G. Kelch, Suzanne Latham, Matt Beyers 2009-6-3 9 .333 Contra Costa East Bay.; El Sobrante Ridge at end of Silver Belt Dr. on Miocene chert outcrop. Comment
  CDA33795  Arctostaphylos crustacea D. G. Kelch 2011-2-4 11 .017 Contra Costa Bear Creek Road west of Orinda near of Briones Park. 0 Comment
  UC1120123  Arctostaphylos glandulosa subsp. glandulosa N. French 1933-3-13 34 Contra Costa above dam; San Francisco Quadrangle, San Pablo Comment
  CAS-BOT-BC24660  Arctostaphylos glauca John Thomas Howell 1926-3-7 1674 Contra Costa Mt. Diablo. Comment
  UCD51123  Arctostaphylos glauca R. W. Lundh 1932-8-28 152 Contra Costa Eagle Point. 725 Comment
  RSA0046800  Arctostaphylos glauca Mary L. Bowerman 1933-3-11 1748 Contra Costa Fossil Ridge, outer south face: In gully northwest of South Gate. Comment
  RSA632816  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27580 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  RSA632822  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27578 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  RSA632823  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27581 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  CAS-BOT-BC38876  Arctostaphylos manzanita subsp. laevigata L. R. Abrams 1910-10-8 4345 Contra Costa Mt. Diablo 548 Comment
  CAS-BOT-BC38879  Arctostaphylos manzanita subsp. laevigata H. E. McMinn 1923-3-6 884 Contra Costa Along roadside 1/4 (?) way from top of Mt. Diablo Comment
  JEPS78231 Image available Arctostaphylos manzanita subsp. laevigata James Roof 1009 Contra Costa along Black Diamond Trail Black Diamond Regional Reserve; Black Diamond Trail, of the Black Diamond Regional Preserve, Contra Costa Co. 121 Comment
  OBI14657  Arctostaphylos manzanita subsp. laevigata H. E. McMinn, E. Maino 1931-4-11 136 Contra Costa Mt Diablo Comment
  RSA164649  Arctostaphylos manzanita subsp. laevigata Percy C. Everett 1963-11-19 24499 Contra Costa Mt Diablo. 457 Comment
  UC549757  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 687 Contra Costa Mt. Diablo Comment
  UC692218  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1931-12-17 1071 Contra Costa s face of ridge e Rock City (Dan Cook) Canyon; Mount Diablo, Rock City (Fossil) Ridge Comment
  UC692221  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1931-3-1 540 Contra Costa e meridian (w part of chaparral); Mount Diablo, Inner Black Hills Comment
  UC692515  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1931-9-20 1043 Contra Costa little above road Mount Diablo, Fossil (Rock City) Ridge Comment
  UC692517  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1931-3-1 539 Contra Costa e meridian (w part of chaparral); Mount Diablo, Inner Black Hills Comment
  RSA0034774  Arctostaphylos manzanita subsp. laevigata Lewis S. Rose 1934-2-28 34040 Contra Costa 8 mi. NE Danville. S. slope Mt. Diablo. Comment
  SEINET11977794  Arctostaphylos manzanita subsp. laevigata L. S. Rose 1934-1 34040 Contra Costa S slope Mt. Diablo, 8 mi NE Danville 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-BC24387  Arctostaphylos manzanita subsp. manzanita Alice Eastwood; John Thomas Howell 1936-4-19 2129 Contra Costa Nortonville. Comment
  CAS-BOT-BC24388  Arctostaphylos manzanita subsp. manzanita Walter Knight; Irja Knight 1968-1-22 2274 Contra Costa In El Sobrante on Skyline Drive. 76 Comment
  CAS-BOT-BC24391  Arctostaphylos manzanita subsp. manzanita Walter Knight 1979-12-9 3717 Contra Costa Morgan Territory Regional Land Bank. Above rimrock of Marsh Creek Canyon. Comment
  POM300730  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1932-1-30 1083 Contra Costa Inner Black Hills, northwest corner of basin of northeast fork of Sycamore Creek. Comment
  CAS-BOT-BC42234  Arctostaphylos pallida Walter Knight; Irja Knight 1980-3-16 3714 Contra Costa Sobrante Ridge between Heavenly Ridge Land and Castro Ranch Road. Comment
  CAS-BOT-BC42236  Arctostaphylos pallida Walter Knight; Irja Knight 1980-3-16 3714 Contra Costa Sobrante Ridge between Heavenly Ridge Land and Castro Ranch Road. Comment
  UC1142931  Arctostaphylos pallida Beryl O. Schreiber 1938-9-18 2548 Contra Costa 0.5 mi ssw Round Top 335 Comment
  UC723808  Arctostaphylos pallida Joseph Andorfer Ewan 1934-1-7 8162 Contra Costa above Oakland (head of creek, along ridge); San Leandro Creek Comment
  JEPS42609  Arctostaphylos tomentosa subsp. crustacea W. L. Jepson 1944-8-5 27547 Contra Costa Moraga Ridge Oakland Hills Comment
  JEPS46271  Arctostaphylos tomentosa subsp. crustacea W. L. Jepson 1943-6-19 20850 Contra Costa Moraga Ridge Comment
  RSA202867  Arctostaphylos tomentosa subsp. crustacea Edward Lee 1935-12-28 1703 Contra Costa Western end of Las Trampas Ridge Comment
Read comments
Jul 2 2011
  UC549470  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 623 Contra Costa Moraga Ridge Comment
  UC549472  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 625 Contra Costa Moraga Ridge Comment
  UC692223  Arctostaphylos tomentosa subsp. crustacea Mary L. Bowerman 1932-3-20 1123 Contra Costa toward top middle ridge (ne fork of canyon); Mt. Diablo, Sycamore Canyon Comment
  RSA0029783  Arctostaphylos tomentosa subsp. crustacea Barbara Ertter, L. Vorobik 2000-1-9 16889 Contra Costa Las Trampas Regional Wilderness in East Bay Hills west of Danville. Comment
  UC2046013  Arctostaphylos viscida subsp. viscida Stephen W. Edwards July, 2012 s.n. Contra Costa Martinez. Comment
  CAS-BOT-BC102183  Argyranthemum foeniculaceum G. Thomas Robbins; John Weiler 1959-5-23 4022 Contra Costa Breakwater portion of Brooks Island (its northwestern extension), San Francisco Bay, Richmond 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
  UC691351  Arnica discoidea Mary L. Bowerman 1931-5-16 849 Contra Costa summit Meridian Peak; Mount Diablo Comment
  UC29607  Arnica discoidea Brewer 1862-1 1302 Contra Costa Comment
Read comments
Jan 20 2011
  JEPS36967  Artemisia californica W. L. Jepson 1916-10-22 6852 a Contra Costa Las Trampas Ridge southern Contra Costa County, Las Trampas Ridge Comment
  JEPS75554  Artemisia californica P. F. Yorks 1974-9-28 366 Contra Costa north of Briones Reservoir (on Hampton Road 1.6 km south of Bear Creek Rd; e. side slope.); Hampton Road Natural Reserve 200 Comment
  UC2042495  Artemisia californica Barbara Keller and J. Ruck 2011-6-23 Contra Costa Mt. Diablo State Park, North Gate Rd. Comment
  UCD129214  Artemisia californica Beecher Crampton 1972-11-21 8892 Contra Costa 2 miles east Port Costa. Comment
  CAS-BOT-BC90298  Artemisia douglasiana Walter Knight; Joanne Dean 1978-8-14 3132 Contra Costa Browns Island Comment
  UC691721  Artemisia douglasiana Mary L. Bowerman 1930-8-24 414 Contra Costa Mitchell Canyon Mount Diablo, Mitchell Canyon Comment
  CAS-BOT-BC90297  Artemisia douglasiana Vincent Jones 1920-8-20 s.n. Contra Costa Vallejo Comment
  RSA0027950  Artemisia douglasiana Barbara Ertter 1997-9-7 15794 Contra Costa North side of Mount Diablo, Donner Creek crossing at south end of Hetherington Trail. Comment
  UC691842  Asclepias californica Mary L. Bowerman 1931-5-21 877 Contra Costa Curry Canyon at Cave Point junction Mount Diablo 304 Comment
  JEPS100125  Asclepias fascicularis A. Langston 2003-7-24 AL 69 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC630420  Asclepias fascicularis Paule Guiguet, Annetta Carter 1939-8-13 1446 Contra Costa 0.3 mi s Marsh Creek Road (Treat Avenue, e of Concord) 60 Comment
  UCR63400  Asclepias vestita Donald G. Nelson 1937-4-24 520 Contra Costa Marsh Creek Rd, between Byron & Clayton Comment
  RSA0028278  Aster exilis Barbara Ertter, CNPS 1990-9-16 9645 Contra Costa Bethel Island NE of Brentwood, E end of Gateway Road at W edge of Franks Tract State Recreation Area. Comment
  RSA417742  Aster radulinus M. B. Dunkle 1931-7-18 2501 Contra Costa Strawberry Canyon, Berkeley 152 Comment
  RSA417743  Aster radulinus M. B. Dunkle 1931-7-18 2532 Contra Costa Strawberry Canyon, Berkeley 152 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
  CAS-BOT-BC180575  Astragalus asymmetricus M. K. Curran 1885-5-30 s.n. Contra Costa Marsh Creek, near Mt. Diablo Comment
  CAS-BOT-BC177885  Astragalus didymocarpus var. didymocarpus Brandegee 1889-5-1 s.n. Contra Costa Antioch Comment
  UC635299  Astragalus gambelianus H. L. Mason 1928-4-15 4345 Contra Costa Moraga Ridge Comment
  UC1199091  Astragalus tener var. tener J. P. Tracy 1900-3-24 611 Contra Costa Low ground near Stege. (region about San Francisco Bay); , near Stege. 3 Comment
  CAS-BOT-BC17460  Athysanus pusillus Mary L. Bowerman 1935-4-22 2887 Contra Costa Mount Diablo. Ridge west of Pioneer Road (west of Old Stage Road). 853 Comment
  POM272526  Athysanus pusillus Lyman Benson 1935-3-16 6262 Contra Costa Mt. Diablo, Watershed: Walnut Creek; Mountain Range: Mt. Diablo. 915 Comment
  UC10226  Athysanus pusillus T. S. Brandegee Contra Costa Antioch Comment
  UC1607661  Athysanus pusillus Barbara Ertter with Michelle Seidl 1992-3-14 10920 Contra Costa e of Mount Diablo (Morgan Territory Regional Preserve); Morgan Territory Regional Preserve Comment
  UC673344  Athysanus pusillus H. L. Mason 1929-3-29 5117 Contra Costa Mount Diablo 1066 Comment
  UC691076  Athysanus pusillus Mary L. Bowerman 1931-2-28 525 Contra Costa Fossil Ridge near Rock City (Mount Diablo); , Fossil Ridge 518 Comment
  CDA9501  Atriplex argentea D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .228 Contra Costa Byron Airport. Comment
  RSA452692  Atriplex argentea L. S. Rose 1932-10-2 32660 Contra Costa Byron. Comment
  UCD97257  Atriplex argentea var. expansa Robert E. Preston; Eva Buxton 1994-8-4 675 Contra Costa east end of Briones Valley, west of Marsh Creek Reservoir. 60 Comment
  RSA454002  Atriplex coronata E. E. Stanford 1930-08 1869 Contra Costa near Old River. Comment
  CHSC98938  Atriplex coronata var. coronata Samantha Mackey Hillaire 2007-7-17 1243 b Contra Costa Briones Valley, ~0.2 mile west of Marsh Creek Reservoir. 60 Comment
  UC70181  Atriplex fruticulosa J. Burtt Davy May 1898 Contra Costa region Mount Diablo (Livermore Pass); region of Mount Diablo, Livermore Pass Comment
  SEINET4134956  Atriplex heterosperma Howard C. Stutz 1990-8-17 95340 Contra Costa No. Livermore.; 0 Comment
  RSA293441  Atriplex joaquinana Reino Alava 1958-6-6 2138 Contra Costa 3 miles south of Byron, between the highway south and the railroad track Comment
  UC1601683  Atriplex joaquinana Katharine Brandegee 1907-5-3 Contra Costa between Antioch Marsh Creek; between Antioch and Marsh Creek Comment
  UC219415  Atriplex joaquinana H. M. Hall 1922-5-6 11801 Contra Costa s base Mt. Diablo; s base Mt. Diablo Comment
  JEPS111798  Atriplex lentiformis A. G. Murdock 2004-6-4 320 Contra Costa Pacheco Marsh On east end of diked marsh near road, only in highest point of old marsh (now dry ground) 5 Comment
  UC217190  Atriplex rosea H. M. Hall 1919-11-14 10971 Contra Costa n Byron; n of Byron Comment
  SEINET5345887  Atriplex semibaccata H. Yates 1934-9-2 4064 Contra Costa 1 mile northeast of Danville Comment
  JEPS111808  Atriplex triangularis D. G. Kelch 2003-8-13 03 .95 Contra Costa Martinez Marsh 1 Comment
  CDA19822  Avena barbata P. Akers 2002-5-11 s.n. Contra Costa Northern California; Mt Diablo Summit Trail at water tank picnic area. 873 Comment
  CAS-BOT-BC146022  Avena barbata Mary L. Bowerman 1932-4-16 1355 Contra Costa Mount Diablo. Eagle Point Ridge south of Twin Peaks. Comment
  CDA20386  Avena fatua P. Akers 2002-5-11 s.n.- 3 d Contra Costa Northern California; Mt Diablo Rd. 205 Comment
  JEPS84882  Avena fatua G. D. Barbe 1983-5-22 4081 Contra Costa hillside along fire road n. of Juniper Campground; Mount Diablo State Park 877 Comment
  RSA129571  Avena fatua R. W. Lundh 1933-3-25 218 Contra Costa 1 mi. W. & 1/2 N. of Lafayette Acalanes; Concord 213 Comment
  RSA762309  Avena fatua William J. Ferlatte, L. M. Moe 1970-4-27 1225 Contra Costa San Francisco Bay, Red Rock Island. Comment
  SD120703  Avena fatua G. D. Barbe 1983-5-22 4081 Contra Costa on hillside along fire road north of Juniper Campground, Mount Diablo State Park 878 Comment
  CAS-BOT-BC98611  Baccharis pilularis Walter Knight; I. Knight; S. Rae; B. Doyle; J. T. Howell; E. McClintock 1978-9-5 3208 Contra Costa Browns Island Comment
  UC1119665  Baccharis pilularis R. W. Lundh Sep 1932 159 Contra Costa 1 mi n North Peak; Mt. Diablo Quad. 609 Comment
  CAS-BOT-BC98191  Baccharis salicifolia Ira L. Wiggins 1930-4-18 4600 Contra Costa Near ferr, Jersey Island Comment
  UC651295  Baccharis salicifolia subsp. salicifolia Ira L. Wiggins 1930-4-18 4600 Contra Costa Levee Parks, near ferry Jersey Island Comment
  SEINET7881864 Image available Baeria fremontii Herbert L. Mason 1952-1 14260 Contra Costa 3.5 miles south of Byron Comment
  SEINET3387286 Image available Baeria gracilis Lewis S. Rose 1932-3-15 3276 Contra Costa open fields, Byron Comment
  CHSC23338  Balsamorhiza deltoidea Willis Ball 1975-3-26 511 Contra Costa Contra Loma Regional Park. In area #8. On N facing slope near top of hill ca. 500 yds S of main parking lot ca. 760 yds W of Contra Loma Blvd. 146 Comment
  UC36778  Balsamorhiza deltoidea J. Burtt Davy 1895-4-7 910 Contra Costa Antioch Comment
  UC761940  Balsamorhiza deltoidea R. F. Hoover 1939-4-13 4015 Contra Costa head of Markley Canyon, (w branch) Markeley Canyon Comment
  CAS-BOT-BC106561  Balsamorhiza deltoidea Rimo Bacigalupi; G. T. Robbins 1955-5-4 4978 Contra Costa On west facing slope south of and above Nortonville, along road to Irish Canyon 426 Comment
  CDA32928  Bellardia trixago D. G. Kelch 2009-5-24 9 .3 Contra Costa Carquinez Strait; S of Ozol, W/SW of Martinez. Comment
  UC103481  Bellardia trixago Edw. L. Greene May 1889 Contra Costa near Martinez Comment
  UCD35137  Bellardia trixago Beecher Crampton 1949-6-5 468 Contra Costa near Muir. Comment
  UCD122097  Bellardia trixago Roman Gankin 1962-5-18 s.n. Contra Costa Near abandoned railroad bed on east side of Pinehurst Road, ca. 1/4 mile north of junction of this road with Canyon Road, ca. 2 miles west of Moraga. Comment
  CHSC23354  Bellis perennis Willis Ball 1975-2-23 441 Contra Costa Contra Loma Regional Park. In area #1. Ca. 40 yds W of restroom facility on the S end of the lake. 30 Comment
  OBI20542  Berberis nevinii Neil Havlik 1968-1 Contra Costa Comment
  CDA3009  Beta vulgaris C. Lasser 1960-4-19 Contra Costa State Highway, right of way between Concord Avenue and Grayson Creek. 0 Comment
  CAS-BOT-BC102106  Bidens cernua Peter Raven 1948-11-28 172 Contra Costa Sloughs, L. San Joaquin R. Comment
  UCD150895  Bidens laevis James A. Neilson Jr.; Samuel A. Bamberg 1972-10-22 3493 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  SEINET8734692 Image available Blennosperma californicum Helen K. Sharsmith 1954-1 4409 Contra Costa above old Nortonville Mines, near Kirker Pass road between Clayton and Antioch 305 Comment
  JEPS104714  Blennosperma nanum John L. Morrison 1937-3-6 1972 Contra Costa low hills S of Antioch Comment
  NY31037  Blennosperma nanum A. M. Carter 1937-3-28 1225 Contra Costa 15 miles east of Concord 152.4 Comment
  JEPS17891  Blennosperma nanum var. nanum Rimo Bacigalupi with G. T. Robbins 1956-3-26 5526 Contra Costa Deer Valley, along Deer Valley Road 76 Comment
  JEPS18383  Blennosperma nanum var. nanum Rimo Bacigalupi with F. Chisaki 1957-3-27 5761 Contra Costa 1/2 mi w, 3 1/2 mi se of Antioch, jct of Lone Tree Way and Hillcrest Ave Lone Tree School 39 Comment
  JEPS18804  Blennosperma nanum var. nanum Lauramay Tinsley 1927-1-1 Contra Costa Mt. Diablo Comment
  UC34576  Blennosperma nanum var. nanum Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  UC894085  Blennosperma nanum var. nanum Lewis S. Rose 1941-3-13 41035 Contra Costa 3 mi s of, Byron 7 Comment
  RSA755794  Blennosperma nanum var. nanum Barbara Ertter 1992-3-8 10908 Contra Costa Byron Springs Road, 4-5 miles south of junction with J4, near Armstrong Road Comment
  POM351055  Blepharizonia laxa T. S. Brandegee 1887-09 s.n. Contra Costa Antioch. Comment
Read comments
Dec 16 2012
  CAS-BOT-BC100333  Blepharizonia plumosa R. F. Hoover 1937-8-31 2704 Contra Costa Pittsburg Comment
  JEPS18824  Blepharizonia plumosa R. F. Hoover 1935-9-7 715 Contra Costa Walnut Creek Comment
  UC2029131  Blepharizonia plumosa Barbara Ertter 2003-7-6 18242 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, south end of Carbondale Trail. Comment
  UC762568  Blepharizonia plumosa Robert F. Hoover 1937-9-2 2711 Contra Costa 1 mi w of Antioch Comment
  UC2029009  Blepharizonia plumosa Barbara Ertter, Dan Norris 1999-11-14 16855 Contra Costa Black Diamond Mines Regional Preserve, east end of Ridge Trail above Stewartville Trail. Comment
  CAS-BOT-BC27013  Boechera breweri subsp. breweri William Henry Brewer 1862-5-14 1086 Contra Costa Summit of Monte Diablo Comment
  SEINET3166336  Boechera breweri subsp. breweri P. J. Alexander, C. D. Bailey 2009-3-30 969 -D Contra Costa Mount Diablo State Park, on North Peak 0.2 miles west of teh summit, 8.8 miles east of central Walnut Creek. 1012 Comment
  CAS-BOT-BC15957  Boechera breweri subsp. breweri H. E. McMinn 1923-3-6 880 Contra Costa Near summit of Mount Diablo. Comment
  SEINET3132246  Boechera breweri subsp. breweri M. S. Baker 1904-6-24 sn Contra Costa Near summit of Mt. Diablo, along Mitchel Canyon Trail. Comment
  SEINET5340097  Boechera breweri subsp. breweri W. C. Blasdale 1896-2-28 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC31331  Bolboschoenus maritimus John Thomas Howell; Gordon H. True 1972-6-29 48943 Contra Costa Low places along Byron Hot Springs Road, SE of Byron. Comment
  UCD140023  Bolboschoenus maritimus subsp. paludosus G. F. Hrusa; D. Crowe 1998-5-8 14366 Contra Costa Sacramento-San Joaquin River Delta. On Dow Chemical property at Pittsburg. 10 Comment
  CAS-BOT-BC31392  Bolboschoenus robustus John Thomas Howell 1932-10-8 10794 Contra Costa Tidal Flat at mouth of Rodeo Creek. 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
  CAS-BOT-BC95322  Bowlesia incana James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  JEPS16063  Bowlesia incana W. L. Jepson 1923-4-22 9867 a Contra Costa Mount Diablo Comment
  JEPS68954  Bowlesia incana Edward Lee 1935-3-10 1285 Contra Costa w Watershed of Kirker Creek (Kirker Pass, Donovan Road); Kirker Pass, Donovan Road Comment
  UC691789  Bowlesia incana Mary L. Bowerman 1933-6-7 2259 Contra Costa Mount Diablo, North Peak Ridge North Peak Ridge; Mount Diablo, North Peak Ridge 1021 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
  UC1819038  Brachypodium distachyon Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14244 Contra Costa South side Mount Diablo, Sloan Road between Curry Point and Curry Canyon, roadside in partial shade of oak forest on north-facing slope. 487 Comment
  JEPS53247  Brassica nigra W. L. Jepson 1921-5-22 9199 Contra Costa Mount Diablo 1/2 way up roadway grade to summit Mount Diablo 1173 Comment
  CAS-BOT-BC36655  Brassica oleracea Walter Knight 1979-5-15 3450 Contra Costa Grangers Wharf, Martinez Regional Shoreline. Comment
  JEPS100010  Brassica rapa G. Smick 2003-2-20 GAS 49 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  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
  UC34624  Brickellia californica V. King Chesnut 1887-9-11 Contra Costa Mt. Diablo 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
  CDA31566  Briza maxima D. G. Kelch, Andrew G. Murdock 2004-4-26 4 .139 Contra Costa East Bay.; Point Pinole Comment
  JEPS99490  Briza maxima Mary Bowerman 1995-6-4 Contra Costa Mount Diablo, Pine canyon by fire road. Comment
  CDA28863  Briza minor D. G. Kelch 2006-5-5 6 .134 Contra Costa East Bay; Wildcat Canyon Regional Park. Near Wildcat Canyon Road terminus. Comment
  CHSC116650  Briza minor Lowell Ahart; Josephine Guardino 2016-4-19 20789 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant .Below the high water line of Los Vaqueros Reservoir, 1.4 miles northwest of Los Vaqueros Reservoir Marina, 1,9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  JEPS100026  Briza minor G. Smick 2003-5-13 GAS 189 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC650431  Brodiaea terrestris subsp. terrestris Ira L. Wiggins 1930-4-17 4573 Contra Costa near Byron Comment
  UCD57881  Bromus carinatus Beecher Crampton 1956-5-14 3393 Contra Costa Just east of old Nortonville. 7 miles southwest of Antioch. Comment
  SEINET10520207  Bromus carinatus Alan A. Beetle 1942-3-22 Beetle 2931 Contra Costa Brooks Island, San Francisco Bay, near Richmond. Comment
  UC1103283  Bromus carinatus var. carinatus J. P. Tracy 1900-3-24 614 Contra Costa San Francisco Bay Region, Point Richmond, Rail Road Track Point Richmond; San Francisco Bay Region, Point Richmond 3 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
  UC1948969  Bromus diandrus William J. Ferlatte, L. Maynard Moe 1970-4-27 1220 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC691215  Bromus diandrus Mary L. Bowerman 1933-5-8 2005 Contra Costa not far from (but out of sight from) South Entrance (Mount Diablo, Fossil Ridge); Mount Diablo, Fossil Ridge 289 Comment
  UC692289  Bromus diandrus Mary L. Bowerman 1935-5-25 3068 Contra Costa Mount Diablo, s of summit Mount Diablo 1066 Comment
  CAS-BOT-BC156065  Bromus diandrus Mary L. Bowerman 1935-5-1 2935 Contra Costa Mount Diablo. North Road 2 miles from entracne. 182 Comment
  UC53679  Bromus hordeaceus H. M. Hall 1901-4-5 1737 Contra Costa San Francisco Bay Region, Mount Diablo Mount Diablo; San Francisco Bay Region, Mount Diablo Comment
  UC60202  Bromus hordeaceus J. B. Davy 1898-1 Contra Costa Mount Diablo Region, Danville Danville; Mount Diablo Region, Danville Comment
  UC697136  Bromus hordeaceus Mary L. Bowerman 1933-5-17 2099 Contra Costa Mount Diablo, branch of Curry Canyon, due s of Olasfsons' barn Curry Canyon; Mount Diablo, Curry Canyon Comment
  UCD38558  Bromus hordeaceus Beecher Crampton 1956-5-14 3417 Contra Costa 0.5 mile northwest of Martinez. Comment
  CAS-BOT-BC155472  Bromus hordeaceus P. F. Knowles 1941-1-1 B 83 Contra Costa Briones Hills. Davis. Greenhouse. Comment
  UC691133  Bromus laevipes Mary L. Bowerman 1933-6-20 2324 Contra Costa Mount Diablo, Median Ridge in Donner Canyon Donner Canyon; Mount Diablo, Median Ridge, Donner Canyon 304 Comment
  UC2070614  Bromus laevipes Barbara Ertter with John Ginochio 2002-6-1 17943 Contra Costa Ginochio Ranch in Arroyo del Cerro on NW side of Mount Diablo, connector road between Government Road and Olofson Homestead. Comment
  POM300674  Bromus madritensis Mary L. Bowerman 1935-5-16 2991 Contra Costa Russelmann Park, at end of road Comment
Read comments
Aug 11 2011
  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
  UCD36919  Bromus madritensis Beecher Crampton 1956-5-14 3395 Contra Costa 3.7 miles southeast of Clayton, on Marsh Creek Road. Comment
  UCD58961  Bromus madritensis Beecher Crampton 1956-5-14 3401 Contra Costa Southeast of Mt. Diablo. 640 Comment
  UCD59002  Bromus madritensis Beecher Crampton 1956-5-14 3395 Contra Costa Marsh Creek Road. 3.7 miles southeast of Clayton. 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
  UC692344  Bromus madritensis subsp. rubens Mary L. Bowerman 1931-5-7 810 Contra Costa Mount Diablo, North Peak North Peak; Mount Diablo, North Peak Comment
  POM300681  Bromus rubens Mary L. Bowerman 1931-5-7 817 Contra Costa Mount Diablo; Northeast slope between summit and North Peak saddle. Comment
  POM300687  Bromus rubens Mary L. Bowerman 1933-3-18 1751 Contra Costa Mt. Diablo below the chaparral belt, a little east of the meridian 549 Comment
  UC2028418  Bromus sterilis Barbara Ertter 2001-5-10 17637 Contra Costa Mount Diablo, Juniper Trail above Laurel Dell Comment
  UC2028467  Bromus tectorum Barbara Ertter 1997-8-24 15775 Contra Costa Mount Diablo, around summit Comment
  JEPS84819  Calamagrostis rubescens J. Stratford 1981-6-8 Contra Costa Huckleberry Trail Huckleberry Botanic Regional Preserve Comment
Read comments
Aug 20 2008
  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
  SEINET3924764  Calamagrostis rubescens Virginia E. Long 1933-6-14 222 a Contra Costa Mt. Diablo, Inner Black Hills.; 0 565 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
  CAS-BOT-BC438365  Calandrinia ciliata unspecified No date on label s.n. Contra Costa Antioch Comment
  UC692306  Calandrinia ciliata Mary L. Bowerman 1931-2-22 522 Contra Costa Sycamore Ridge Mount Diablo Comment
  CAS-BOT-BC167286  California macrophylla Brandegee s.n. Contra Costa Antioch Comment
  JEPS111765  Callitriche marginata D. G. Kelch 2005-3-11 05 .34-B Contra Costa Mt. Wanda - Martinez Mt. Wanda. Fire road climbing North side of mountain 90 Comment
  UC768643  Calochortus albus R. F. Hoover 1939-4-26 4067 Contra Costa Head of Markley Canyon (w branch) Markley Canyon Comment
  UC2028252  Calochortus argillosus Barbara Ertter, Mary Bowerman, Lisa Schultheis 1998-8-21 16395 Contra Costa Southwest base of Mount Diablo, South Gate Road 0.7 miles from park boundary. Comment
  UC2028323  Calochortus argillosus Barbara Ertter, Susan D'Alcamo 1998-6-12 16153 Contra Costa North Gate Road on west flank of Mount Diablo, between Long Ridge and Buckle Point. Comment
  UC2029142  Calochortus argillosus Barbara Ertter with Alan Prather 2003-6-7 18193 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, Valley View Trail at NE corner of park. Comment
  JEPS122394  Calochortus pulchellus Nisrine Machaka-Houri 2014-5-17 NG 14 Contra Costa Black Point Trail, Mitchell Canyon, Mt. Diablo State Park. Comment
  JEPS61709  Calochortus pulchellus W. L. Jepson 1918-6-3 7570 Contra Costa Donner Canyon Mt. Diablo 533 Comment
  RSA369096  Calochortus pulchellus Ora M. Clark 1928-1 s.n. Contra Costa Mt. Diablo Comment
  SBBG54485  Calochortus pulchellus L. R. Abrams 1921-5-25 8053 Contra Costa Mt Diablo, 4.5 mi from summit Comment
  SEINET5245480  Calochortus pulchellus Unknown 1995-6-15 02 Contra Costa Mount Diablo State Park Comment
  CAS-BOT-BC132495  Calochortus pulchellus Elizabeth McClintock; Wayne Roderick 1967-5-30 s.n. Contra Costa Marsh Creek Road, n. base of Mt. Diablo 76 Comment
  CAS-BOT-BC132505  Calochortus pulchellus Paul F. Covel 1936-5-17 123 Contra Costa Mt. Diablo, (North Pk trail) Comment
  CDA9192  Calochortus superbus Christopher Thayer 1996-6-7 s.n. Contra Costa On SW facing grassy slopes on Oursan Trail not far above Hampton Road. EBMUD property. 0 Comment
  JEPS127831  Calochortus umbellatus Adam C. Schneider 2014-5-15 447 Contra Costa Mt. Diablo State Park: Alongside Blackhawk Ridge Trail, south of its divergence from Knobcone Pine Trail. Comment
  UC1601662  Calochortus umbellatus W. H. Brewer 1862-5-1 1035 Contra Costa s of Camp 69; Walnut Creek Comment
  CAS-BOT-BC132535  Calochortus umbellatus Mary L. Bowerman 1931-3-22 612 Contra Costa Knoll between Cave and Oyster Points Comment
  JEPS122393  Calochortus venustus Nisrine Machaka-Houri with Gracie Benson-Martin 2014-5-17 NG 13 Contra Costa Golden Lily Trail, Mitchell Canyon, Mt. Diablo State Park. Comment
  UC2029143  Calochortus venustus Barbara Ertter with Alan Prather 2003-6-7 18212 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, Coyote Trail. Comment
  CAS-BOT-BC275399  Calycadenia truncata var. truncata L. R. Abrams 1910-10-8 4338 Contra Costa Mount Diablo 701 Comment
  SD225761  Calystegia malacophylla subsp. pedicellata R. K. Brummitt, J. Strother & B. Baldwin 1997-5-27 19606 Contra Costa Mt. Diablo, W side, Murchio Gap; 800 Comment
  RSA397145  Calystegia malacophylla subsp. pedicellata Anstruther Davidson 1917-07 3251 Contra Costa 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
  CAS-BOT-BC215917  Calystegia purpurata subsp. purpurata Alice Eastwood 1915-5-30 4437 Contra Costa Mt. Diablo Comment
  UC1618171  Calystegia sepium subsp. binghamiae Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10867 Contra Costa Dow Wetlands Preserve, just W of Antioch marina; along levee at water's edge, accessed from marina Comment
  JEPS47838  Calystegia subacaulis W. L. Jepson 1922-6-7 9719 a Contra Costa North Berkeley Hills Comment
  UC2031432  Calystegia subacaulis Barbara Ertter 2002-5-11 17843 Contra Costa Wall Point on southwest flank of Mount Diablo. Comment
  UC1794983  Calystegia subacaulis subsp. subacaulis R. K. Brummitt and B. Ertter 1998-5-6 19784 Contra Costa Mt. Diablo, NW side, path to Mitchell's Rock 300 Comment
Read comments
Aug 3 2013
  RSA41303  Camissonia micrantha Robert F. Hoover 1935-3-10 314 Contra Costa Antioch sand-dunes Comment
  RSA186560  Camissonia micrantha Peter H. Raven 1963-3-29 18143 Contra Costa About 1 mile south of Oakley on State Highway 4 at junction of Brownstone Road Comment
  UC635400  Camissoniopsis intermedia H. L. Mason 1928-4-29 4436 Contra Costa Sycamore Canyon Mount Diablo (s slope of mt.) Comment
  UC726184  Camissoniopsis micrantha A. A. Heller 1942-4-12 Contra Costa 4 mi w Antioch Comment
  JEPS2508 Image available Campanula exigua Volney Rattan 1886-6-14 Contra Costa summit Monte Diablo; Summit of Mt. Diablo Comment
  UC691518  Campanula exigua Mary L. Bowerman 1935-5-25 3078 Contra Costa rock slide in rock gorge; Mount Diablo, Rhine Canyon 914 Comment
  CAS-BOT-BC266435  Campanula exigua R. Bacigalupi 1946-5-30 2781 Contra Costa Juniper Camp, W shoulder of Mount Diablo Comment
  UC1789104  Campsis radicans Barbara Ertter 1998-5-10 16370 Contra Costa southeast edge of Antioch Marina. 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
  JEPS100084  Capsella bursa-pastoris G. Smick 2003-4-3 GAS 121 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA128367  Capsella bursa-pastoris P. H. Raven 1950-3-5 1406 Contra Costa 0.75 mile from place where it meets Orinda - Richmond Road, Bear Creek Road. 107 Comment
  CAS-BOT-BC37396  Cardamine californica Annetta Carter; Helen Sharsmith 1940-3-17 1498 Contra Costa Near Stege railroad station two miles southeast of Richmond. 7 Comment
  UC10326  Cardamine californica var. integrifolia W. H. Brewer 1862-5-1 1039 Contra Costa Walnut Creek Comment
  POM203648  Cardamine californica var. integrifolia J. T. Howell 1933-5-14 11255 Contra Costa Hills east of St. Mary s college Comment
  CDA24752  Cardamine hirsuta D. G. Kelch 2007-3-24 7 .085 Contra Costa Carquinez Strait; Ozol; between Port Costa and Martinez, near old brick quarry. Comment
  JEPS100083  Cardamine oligosperma G. Smick 2003-5-30 GAS 200 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1561256  Cardamine oligosperma Barbara Ertter with John Little 1989-4-2 8112 Contra Costa Hillside Park , Hillside Park (El Cerrito) Comment
  UC1795823  Cardamine oligosperma Barbara Ertter, Gary Schoolcraft, Tony Morosco 1996-4-6 14564 Contra Costa Black Hawk Ridge Rd. along East Fork Sycamore Cr in Mt Diablo State Park, shaded roadside bank on north-facing slope,oak woods. Comment
  UCD114568  Cardamine oligosperma Terri Williamson 1990-4-10 1 Contra Costa 212 Poshard Street, Pleasant Hill. 12 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
  JEPS25275  Cardaria pubescens G. Thomas Robbins 1959-9-13 4162 Contra Costa R.R. right-of-way above salt marsh at n. edge Pinole 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
  CAS-BOT-BC281738  Carduus pycnocephalus John Thomas Howell 1933-5-14 11246 Contra Costa Hills E of St Mary's College Comment
  CAS-BOT-BC281739  Carduus pycnocephalus Mary L. Bowerman 1935-5-25 3079 Contra Costa Mount Diablo. North Rd 2.4 miles from entrance (by shepherd's camp) 304 Comment
  CHSC116628  Carduus pycnocephalus subsp. pycnocephalus Lowell Ahart; Josephine Guardino 2016-4-19 20794 Contra Costa Along the sides of the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant. 160 Comment
  UC691375  Carduus pycnocephalus subsp. pycnocephalus Mary L. Bowerman 1935-5-25 3079 Contra Costa w road, 2.4 mi from entrance Shepherd's Camp; Mount Diablo 304 Comment
  CDA15244  Carduus tenuiflorus G. F. Hrusa, D. Crowe 1998-5-8 14375 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  JEPS79443  Carduus tenuiflorus Edward Lee with Annetta Carter 1935-6-13 1431 Contra Costa s Richmond Panhandle Boulevard; Richmond Comment
  UCD129927  Carduus tenuiflorus Collector Unknown Date Unknown 64 Contra Costa about 6 miles east of Pinole on Franklin Canyon Road. 152 Comment
  CAS-BOT-BC17998  Carex aquatilis var. dives Brian Atwater 1979-5-6 BA- 198 Contra Costa Between Bethel Island and Holland Tract. Comment
  CDA29516  Carex barbarae D. G. Kelch, Troy MacGregor 2009-5-1 9 .277 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  UC70611  Carex densa Jos. Burtt Davy 1899-4-19 7843 Contra Costa Glorietta; Inner Coast Range Mountains 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
  RSA0027703  Carex praegracilis Barbara Ertter 2001-5-10 17638 Contra Costa south side of Mount Diablo, Sulphur Spring tributary of west fork Sycamore Creek, ca 0.25 mi from Madrone Canyon Trail. Comment
  POM222732  Carex serratodens L. S. Rose 1935-5-16 35163 Contra Costa Mt. Diablo. Comment
  UC692205  Carex serratodens Mary L. Bowerman 1938-5-28 3647 Contra Costa South Road Mount Diablo 640 Comment
  UC2028573  Carex serratodens Barbara Ertter with Stu Garrett 1997-3-29 15537 Contra Costa West side Mount Diablo, spring at north junction of Mothers Trail and Burma Road. 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
  UC1096  Carex tumulicola Jos. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  UCR198216  Carex tumulicola Dean Kelch 2006-5-5 06 .131 Contra Costa San Francisco Bay, East Bay, Wildcat Canyon Regional Park, near Wildcat Canyon Road terminus 122 Comment
  JEPS15237  Castilleja affinis subsp. affinis Rimo Bacigalupi with G. Thomas Robbins 1956-5-11 5643 Contra Costa near summit of Hampton Road grade (on the Pinole Creek side, over hill n of Bear Creek and leading to Briones Valley School (which is not in Briones Valley)) 220 Comment
  JEPS41055  Castilleja affinis subsp. affinis Rimo Bacigalupi, and L. R. Heckard 1965-5-11 9080 Contra Costa sw of Richmond (Brooks Island); San Francisco Bay, Brooks Island 30 Comment
  UC27158  Castilleja ambigua subsp. ambigua Jos. Burtt Davy 1900-6-7 6666 Contra Costa Martinez Comment
  UCSB39456  Castilleja applegatei subsp. martinii Fritzke, Sue 1980-3-29 Contra Costa 0.5 miles from the east end of Ball Rd., in the Shell Ridge Open Space Area, SE of the rock quarry 124 Comment
  UC27147  Castilleja attenuata H. M. Hall 1901-4-5 Contra Costa Mt. Diablo; San Francisco Bay Region 640 Comment
  UC41755  Castilleja attenuata Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  UC691577  Castilleja attenuata Mary L. Bowerman 1931-4-4 668 Contra Costa n side Turtle Rock; Mount Diablo Comment
  HSC20894  Castilleja densiflora Greg Bos 1963-4-28 95 Contra Costa Pinole hills overlooking San Pablo Bay 46 Comment
  UC1481545  Castilleja densiflora subsp. densiflora Neil Havlik 1980-5-14 917 Contra Costa e side Pt. Pinole Regional Shoreline Comment
  UC54724  Castilleja densiflora subsp. densiflora J. P. Tracy 1903-4-18 1806 Contra Costa e slope beyond Bald Peak (hills near Berkeley); San Francisco Bay Region 304 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
  CDA41326  Castilleja exserta subsp. exserta D. G. Kelch 2005-4-24 5 .162 Contra Costa Carquinez Strait Region; Franklin Canyon. Collier Hill. West Carbon. Comment
  CHSC116613  Castilleja exserta subsp. exserta Lowell Ahart; Josephine Guardino 2016-4-19 20779 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  JEPS100148  Castilleja foliolosa G. Smick 2003-2-20 GAS 48 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS9141  Castilleja rubicundula subsp. lithospermoides W. L. Jepson 1922-7-9 9729 Contra Costa Richmond Comment
  UC27223  Castilleja rubicundula subsp. lithospermoides J. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  CAS-BOT-BC41036  Caulanthus flavescens Mary L. Bowerman 1935-4-12 2823 Contra Costa Mount Diablo. West road 2 miles from entrance, just north of the road. Comment
  CAS-BOT-BC41039  Caulanthus flavescens Reed Clark Rollins 1946-3-25 3046 Contra Costa Western slope of Mount Diablo. Comment
  CDA24865  Caulanthus flavescens Jim Jokerst 1989-3-31 3078 Contra Costa East of creek in Brushy Creek Canyon. 0 Comment
  CAS-BOT-BC40485  Caulanthus lasiophyllus Bolander 1863-1-1 368 Contra Costa San Pablo Landing. Comment
  CAS-BOT-BC40511  Caulanthus lasiophyllus Mary L. Bowerman 1932-3-23 1131 Contra Costa Mount Diablo. Ridge east of Donner Canyon. On crest. 274 Comment
  UCD112079  Ceanothus cuneatus M. Wiesendanger 1926-6-1 1532 Contra Costa Mt. Diablo. Comment
  JEPS42089  Ceanothus cuneatus var. cuneatus W. L. Jepson 1923-3-11 9847 Contra Costa Black Hills Mt. Diablo Comment
  UC18269  Ceanothus cuneatus var. cuneatus State Survey 1862-5-7 1062 Contra Costa summit of Mt. Diablo Comment
  UC692592  Ceanothus cuneatus var. cuneatus Mary L. Bowerman 1932-9-3 1531 Contra Costa Muir Area, Mount Diablo Comment
  UC692590  Ceanothus oliganthus var. sorediatus Mary L. Bowerman 1932-5-6 1424 Contra Costa Mitchell Canyon Mount Diablo, Mitchell Canyon Comment
  JEPS30702  Centaurea calcitrapa T. C. Fuller 1961-9-13 7000 Contra Costa ca. 4 mi se of Byron (Hwy J4) 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
  JEPS111663  Centaurea melitensis A. G. Murdock 2004-5-28 286 Contra Costa Pinole Peak 205 Comment
  CHSC23349  Centaurea solstitialis Willis Ball 1975-5-20 530 Contra Costa Contra Loma Regional Park. In area #10 ca. 300 yds e of dam. 33 Comment
  UC1606360  Centaurium muehlenbergii Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10700 Contra Costa n of Pittsburg (near confluence of Sacramento River and San Joaquin River, opposite Pittsburg Marind, flat in the center of w end of Browns Island); Browns Island Comment
  CDA38378  Centaurium tenuiflorum D. G. Kelch 2005-6-24 5 .388 Contra Costa Carquinez Strait Region; Franklin Canyon at McEwen Road. Comment
  UC1050884  Centranthus ruber N. Floy Bracelin 1942-5-17 1288 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC2028105  Centranthus ruber Barbara Ertter with Christopher Baysdorfer 1998-5-10 16119 Contra Costa Lime Ridge Open Space northwest of Mount 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
  UC421693  Centromadia fitchii John Thomas Howell 1929-9-21 4388 Contra Costa 1 mi se Clayton Comment
  CAS-BOT-BC288542  Centromadia fitchii L. S. Rose 1941-10-13 41464 Contra Costa 1 mile E of Walnut Creek 50 Comment
  UC2028246  Centromadia fitchii Barbara Ertter, Tony Morosco 1998-9-18 16416 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, Valley Vista Road entrance. Comment
  UC1069557  Centromadia parryi subsp. congdonii H. S. Yates 1934-9-2 4072 Contra Costa 1 mi ne Danville; Mt. Diablo Quadrangle Comment
  CAS-BOT-BC288881  Centromadia parryi subsp. congdonii David D. Keck 1933-11-2 2611 Contra Costa 2.7 miles N of Walnut Creek Comment
  SD175794  Centromadia pungens D. G. Kelch 2005-11-23 06 507 B Contra Costa Point Molate. 4 Comment
  CAS-BOT-BC279185  Centromadia pungens subsp. pungens David D. Keck 1933-11-2 2613 Contra Costa 3 mi. S. of Martinez on road to Pacheco Comment
  CAS-BOT-BC279204  Centromadia pungens subsp. pungens David D. Keck 1933-11-2 2613 Contra Costa 3 mi. S. of Martinez on road to Pacheco Comment
  CAS-BOT-BC279192  Centromadia pungens subsp. pungens Niall McCarten; V. I. Dains 1986-1-1 03251142 Contra Costa Wl of Camino Diablo & Kellogg Creek Comment
  CAS-BOT-BC222901  Cephalanthus occidentalis Walter Knight; Joanne Dean 1978-8-14 s.n. Contra Costa Browns Island Comment
  UC1594163  Cephalanthus occidentalis var. californicus Jerry Powell 1991-6-11 1607 Contra Costa Antioch National Wildlife Refuge 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
  CHSC116614  Cerastium glomeratum Lowell Ahart; Josephine Guardino 2016-4-19 20773 Contra Costa Undesignted section of Canada de Los Vaqueros Land Grant. 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  UC579851  Cerastium glomeratum Annetta Carter 1936-4-19 1114 Contra Costa 1 mi. s.w Castro Point (e. side Red Rock); San Francisco Bay, Red Rock Comment
  CDA19002  Ceratophyllum demersum R. Gage 2000-10-18 PDR 1198719 B Contra Costa Clifton Ct. Forebay, NW of Tracy, at the head of State Water project. 0 Comment
  UC691100  Cercocarpus betuloides var. betuloides Mary L. Bowerman 1931-6-4 923 Contra Costa Summit of Meridian Peak, Mount Diablo Meridian Peak; Mount Diablo, Meridian Peak Comment
  UC691102  Cercocarpus betuloides var. betuloides Mary L. Bowerman 1936-9-9 3541 Contra Costa Rock City Ridge = Fossil Ridge, w of 1478 (below road) Fossil Ridge; Mount Diablo, , Rock City Ridge Comment
  UC565564  Chaenactis glabriuscula var. glabriuscula H. L. Mason 1929-3-31 5157 Contra Costa Antioch, sand dikes along San Joaquin River San Joaquin River, Antioch Comment
  RSA181414  Chaenactis glabriuscula var. megacephala James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  CDA23076  Chamaesyce maculata D. G. Kelch, D. A. Weinstein 2008-5-5 8 .093 Contra Costa Carquinez Strait; Richmond. W Chevy s Hill. N parking lot of Hilltop Mall. Comment
  RSA0028851  Chamaesyce maculata Barbara Ertter, Rich Rabeler, Tony Morosco 1997-6-10 15666 Contra Costa Miller Knox Regional Shoreline south of Richmond, parking area for Richmond Ramblers. Comment
  UC692715  Chamaesyce ocellata Mary L. Bowerman 1932-8-27 1517 Contra Costa between Turtle Rock and pond to the south Comment
  JEPS9018  Chamaesyce ocellata subsp. ocellata W. L. Jepson 1901-10-11 13926 Contra Costa Mount Diablo Comment
  JEPS111948  Chamaesyce serpens D. G. Kelch 2003-8-13 03 .118 Contra Costa Martinez Marsh 1 Comment
  UC2062625  Chamaesyce serpyllifolia var. serpyllifolia Barbara Ertter with John Ginochio 2002-6-1 17944 Contra Costa Ginochio house on south side of North Gate Road on NW base of Mount Diablo, lower Arroyo del Cerro. Comment
  UC2031491  Cheilanthes Barbara Ertter with David Gowen 2014-4-12 21718 Contra Costa On north side of Prospectors Gap Road ca 1 mile east of Mount Diablo summit, burnt in previous year's fire Comment
  JEPS106990  Cheilanthes covillei J. Greenhouse with Kevin Hintsa 2004-4-5 5085 Contra Costa Mt. Diablo, Fire Interpretive Trail, Devil's Pulpit 1085 Comment
  CAS-BOT-BC70278  Cheilanthes intertexta John Thomas Howell 1955-3-6 30145 Contra Costa between South & North peaks of Mt. Diablo Comment
  UC1199816  Chenopodium californicum Herbert L. Mason 1929-3-31 5158 Contra Costa Antioch Sacramento River Comment
  UC691935  Chenopodium californicum Mary L. Bowerman 1931-3-7 546 Contra Costa Sheep Corral Spring Mount Diablo Comment
  CDA21590  Chenopodium multifidum D. G. Kelch, Mike Park 2008-9-1 8 .302 Contra Costa Carquinez Strait; Lonetree Point. Rodeo Shoreline Park. Rodeo. Comment
  UC2027886  Chenopodium murale Barbara Ertter with Chris Thayer 1996-10-25 15362 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park. Comment
  CAS-BOT-BC497665  Chlorogalum pomeridianum Alice Eastwood 1927-5-19 11434 Contra Costa Byron Springs Comment
  UC77552  Chorizanthe membranacea Brandegee April, 1889 Contra Costa Mount Diablo Comment
  CAS-BOT-BC264081  Chorizanthe uniaristata M. K. Curran 1884-1-1 s.n. Contra Costa Near Mt. Diablo Comment
  CAS-BOT-BC30111  Chrysolepis chrysophylla var. minor H. E. Mc. Minn 1922-5-30 31 Contra Costa Moraga ridge Comment
  JEPS38085  Chrysolepis chrysophylla var. minor H. M. Wheeler 1943-8-15 27500 Contra Costa Moraga Ridge Comment
  UC22848  Cicendia quadrangularis W. H. Brewer 1862-4-24 993 Contra Costa Martinez; near Camp 68 Comment
  UC1119189  Cirsium cymosum var. cymosum C. M. Belshaw 1936-5-7 2050 Contra Costa 2 mi n of Danville; Mt. Diablo Quadrangle 243 Comment
  UC691377  Cirsium cymosum var. cymosum Mary L. Bowerman 1935-5-22 3041 a Contra Costa Eagle Point Ridge, canyon at n e of which heads into saddle w of Twin Peaks Mount Diablo 304 Comment
  UC691389  Cirsium cymosum var. cymosum Mary L. Bowerman 1933-6-20 2323 Contra Costa Median Ridge Donner Canyon Comment
  JEPS59175  Cirsium occidentale var. venustum W. L. Jepson 1919-6-8 8327 Contra Costa Mt. Diablo Comment
  SEINET11843056  Cirsium vulgare Unknown 1983-1 4989 Contra Costa Castro Ranch Rd between Hillside St. & Alhambra Valley Rd Comment
  UC1782176  Citrullus colocynthis var. lanatus Rudolf Schmid 2003-9-13 2003 -15 Contra Costa vacant lot, 24 Edwin Dr., Kensington 169 Comment
  UC1122359  Clarkia affinis C. M. Belshaw 1936-5-9 2075 Contra Costa 2 1/4 mi e Clayton (plot 10); Mt. Diablo Quadrangle Comment
  UC692491  Clarkia affinis Mary L. Bowerman 1933-6-14 2271 Contra Costa ridge between two main forks Curry Cave Canyon; Mount Diablo Comment
  CAS-BOT-BC162561  Clarkia affinis Volney Rattan 1877-5-22 s.n. Contra Costa Alhambra Val. Comment
  UC2070449  Clarkia affinis Barbara Ertter with Steve Matson 2003-5-31 18179 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, Coal Canyon. Comment
  UC692438  Clarkia biloba Mary L. Bowerman 1930-6-22 355 Contra Costa Mitchell Canyon Mount Diablo Comment
  CAS-BOT-BC163605  Clarkia biloba subsp. biloba A. D. E. Elmer 1903-5-1 4319 Contra Costa Mount Diablo Comment
  JEPS111565  Clarkia biloba subsp. biloba D. G. Kelch 2000-5-22 00 .142 Contra Costa Crockett - Eckley North-facing railroad cuts west of Bull Valley Staging Area 7 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
  SD69962  Clarkia concinna Darley Howe 1968-5-20 4518 Contra Costa 5.6 miles north of Contra Costa, Alameda County Line on Morgan Territory road. Comment
  SDSU8648  Clarkia concinna D. F. Howe 1968-5-20 4518 Contra Costa 5.6 miles north of contra Costa-Alameda Co. line on Morgan Territory Road. 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
  CAS-BOT-BC171989  Clarkia epilobioides K. Brandegee s.n. Contra Costa Antioch Comment
  CAS-BOT-BC172036  Clarkia gracilis subsp. gracilis Mary L. Bowerman 1931-5-16 858 Contra Costa Grassy area on rocky west flank of Ransom Point Ridge, summit of Mount Diablo Comment
  CAS-BOT-BC172037  Clarkia gracilis subsp. gracilis Mary L. Bowerman 1942-5-24 3840 Contra Costa Jim White Trail to Deer Flat, Mount Diablo 853 Comment
  CDA33413  Clarkia purpurea subsp. quadrivulnera D. G. Kelch, D. A. Weinstein 2011-5-28 11 .539 Contra Costa Carquinez Strait Region.; W of Martinez. N of end of Hillside Pl. Comment
  JEPS111553  Clarkia purpurea subsp. quadrivulnera Christopher Thayer 1995-5-20 Contra Costa Carquinez Straits Dr. near Ozol entrance gate Comment
  UC1122432  Clarkia purpurea subsp. quadrivulnera C. M. Belshaw 1936-5-13 2112 Contra Costa 3.7 mi ene Tassajero (plot 31); Mt. Diablo Quadrangle Comment
  UC692488  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1933-6-7 2252 Contra Costa saddle between Meridian Peak and North Peak; Mount Diablo Comment
  UC692493  Clarkia purpurea subsp. quadrivulnera Charles Belshaw 1936-5-13 2112 Contra Costa ridge n Marsh Creek (about 2 mi nw of summit of Clayton-Livermore road); Mount Diablo 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
  UC692486  Clarkia purpurea subsp. viminea Mary L. Bowerman 1935-5-1 2928 Contra Costa 2 mi from North Gate (North Road); Mount Diablo 182 Comment
  UC1279946  Clarkia rubicunda Peter H. Raven 1957-7-5 11050 Contra Costa ne side of hills Point Richmond 106 Comment
  CAS-BOT-BC165448  Clarkia unguiculata K. Brandegee s.n. Contra Costa Antioch Comment
  CAS-BOT-BC165449  Clarkia unguiculata L. R. Abrams 1916-6-30 5702 Contra Costa Mt. Diablo near lake Comment
  CHSC27728  Clarkia unguiculata Coleta Lawler 1978-6-23 296 Contra Costa West of Concord on Alhambra Valley Road, 0.7 miles east of Bear Creek Road; roadcut. Comment
  JEPS100002  Clarkia unguiculata G. Smick 2003-5-20 GAS 194 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA448454  Clarkia unguiculata E. E. Stanford 1930-5-24 1510 Contra Costa Marsh Creek Canyon. Comment
  JEPS48618  Claytonia exigua subsp. exigua Elsa Kraeger 1926-3-7 Contra Costa w side Mt. Diablo Comment
  UC56201  Claytonia exigua subsp. exigua H. M. Hall 1901-4-5 1759 Contra Costa Mt. Diablo; San Francisco Bay Region 1158 Comment
  UC692544  Claytonia exigua subsp. exigua Mary L. Bowerman 1932-3-12 1110 Contra Costa Alamo Canyon (e-facing bank 15 ft above the stream) Alamo Canyon; Mount Diablo 350 Comment
  UC692549  Claytonia exigua subsp. exigua Mary L. Bowerman 1935-4-22 2893 Contra Costa ridge w Pioneer Road, Mount Diablo (w of Stage Road); Mount Diablo 822 Comment
  UC7934  Claytonia exigua subsp. exigua W. H. Brewer 1862-5-12 1082 Contra Costa Mt. Diablo Comment
  UC7939  Claytonia exigua subsp. exigua State Survey 1862-5-7 1059 Contra Costa Mt. Diablo Summit Comment
  JEPS107017  Claytonia gypsophiloides J. Greenhouse with Kevin Hintsa 2004-4-5 5083 Contra Costa Mt. Diablo, Fire Interpretive Trail 1109 Comment
  UC7871  Claytonia gypsophiloides Edw. L. Greene Jun 1892 Contra Costa Mount Diablo Comment
  CAS-BOT-BC439440  Claytonia parviflora subsp. parviflora John Thomas Howell 1933-5-14 11252 Contra Costa Hills east of St. Mary's College Comment
  JEPS112034  Claytonia parviflora subsp. parviflora D. G. Kelch 2003-3-21 03 .46 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  UC2028210  Claytonia parviflora subsp. parviflora Barbara Ertter, Tony Morosco 1998-4-12 15999 Contra Costa Base of Mount Olympia on north side of Mount Diablo, talus above quarry NE of Olympia Trail. Comment
  CAS-BOT-BC440074  Claytonia perfoliata subsp. perfoliata Mary L. Bowerman 1932-3-12 1111 Contra Costa Mount Diablo. Alamo Canyon 350 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
  CAS-BOT-BC91355  Clematis lasiantha V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley. Comment
  RSA0028269  Clinopodium vulgare Barbara Ertter, David Gowen 2012-6-9 21018 Contra Costa Lower Vollmer Peak Trail paralleling South Drive, southeastern Tilden Park in Berkeley Hills. 426 Comment
  SEINET12050675  Clintonia andrewsiana W. Knight, Knight, I. 1988-1 6129 Contra Costa Redwood Regional Park, between pipe bridge and single curb bridge along Steam Trail 274 Comment
  SEINET12051855  Clintonia andrewsiana W. Knight, Knight, I. 1988-1 6129 Contra Costa Redwood Regional Park, between pipe bridge and single curb bridge along Steam Trail 274 Comment
  SEINET9290098  Clytostoma callistegioides Unknown 2009-6-3 Contra Costa Residence in San Ramon, California. See USCH plant ID files. Plant sent to USCH for identification. Query letter included on specimen. Comment
  JEPS5893  Collinsia bartsiifolia var. bartsiifolia Chesnut and Drew 1889-4-16 Contra Costa near Concord Comment
  SEINET10865415  Collinsia concolor John T. Middleton 1936-3-18 Middleton 136 Contra Costa Briones valley. Comment
  JEPS65197  Collinsia heterophylla L. R. Heckard 1971-4-15 2470 Contra Costa along Morgan Territory Rd (7 mi N of intersection with Manning Rd); Mt. Diablo 487 Comment
  JEPS108353  Collinsia sparsiflora David Gowen 2005-3-31 221 Contra Costa Sibley Regional Preserve. East facing slope just east of Park boundary near dirt road that heads northeast. Comment
  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
  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
  UC26642  Collinsia sparsiflora var. collina State Survey Contra Costa Mount Diablo Comment
  UC691584  Collinsia sparsiflora var. collina Mary L. Bowerman 1932-3-12 1112 Contra Costa Alamo Canyon , Alamo Canyon (Mount Diablo) 365 Comment
  UC766264  Collinsia sparsiflora var. collina R. F. Hoover 1938-3-5 2817 Contra Costa mouth of Kirker Creek Canyon Comment
  UC2027814  Collinsia sparsiflora var. collina Barbara Ertter with Stu Garrett 1997-3-29 15530 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  UC23157 Image available Convolvulus luteolus var. purpuratus Ivar Tidestrom 1893-4-15 Contra Costa Sheep Island Island, S.Fr. Bay, (Brooks Island) Comment
  SEINET198892  Convolvulus sepium var. communis Ira L. Wiggins 1954-5-9 13123 Contra Costa Levee along Bethel Island Comment
  UC1584663  Conyza canadensis Jerry Powell 1990-8-29 1586 Contra Costa Antioch National Wildlife Refuge Comment
  HSC33256  Conyza canadensis A. M. Montalvo, J. D. Ackerman 1974-12-1 435 Contra Costa Walnut Creek, Olympic Dr. between Tice Valley Rd. and Pleasant Hill Rd. Comment
  JEPS77538  Cordylanthus mollis subsp. mollis Charles Patterson June, 1978 Contra Costa tidal marsh near Shore Acres; West Pittsburg Comment
  JEPS6802  Cordylanthus pilosus subsp. pilosus Mary L. Bowerman 1931-9-20 1045 Contra Costa near Rock City (Rock City Canyon, N side); Mount Diablo Comment
  UC691507  Cordylanthus pilosus subsp. pilosus Mary L. Bowerman 1936-8-8 3523 Contra Costa Emmons Canyon, W fork Mount Diablo Comment
  SEINET12765135  Coronopus didymus Barbara Ertter 1990-5-15 8991 Contra Costa Soth El Cerrito, north foot of Albany Hill at end of Yosemite Avenue cul-de-sac.; 0 Comment
  UC1005623  Corylus californica Frank W. Gould 1940-2-8 865 Contra Costa Grizzly Peak, N side 289 Comment
  CAS-BOT-BC169515  Corylus cornuta subsp. californica Alice Eastwood 1914-3-6 s.n. Contra Costa Redwood Canyon Comment
  UC2028097  Cosmos bipinnatus Barbara Ertter 1996-9-19 15290 Contra Costa Cerrito Creek at base of Albany Hill, just west of San Pablo Avenue. Comment
  UC1620000  Cotoneaster lacteus Barbara Ertter 1997-1-5 15432 Contra Costa Ygnacio Valley Road at Lime Ridge between Walnut Creek and Clayton, south facing roadcut. Comment
  JEPS99943  Cotoneaster pannosus G. Smick 2003-6-6 GAS 218 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1622290  Cotoneaster pannosus Barbara Ertter 1997-1-5 15431 Contra Costa at Lime Ridge between Walnut Creek and Clayton (Ygnacio Valley Road); Lime Ridge, Ygnacio Valley Road Comment
  UC1619999  Cotoneaster pannosus Barbara Ertter 1997-1-5 15431 Contra Costa Ygnacio Valley Road at Lime Ridge between Walnut Creek and Clayton, south facing roadcut. Comment
  UCD159506  Cotula coronopifolia D. S. Park 2010-9-11 254 Contra Costa Growing along roadside in overflow from wetlands. Rancid water. 5 Comment
  PASA938  Cotula coronopifolia Annetta Carter 1929-3-31 Contra Costa Near Clayton. Hills north of Mt. Diablo Comment
  JEPS99548  Crassula aquatica Mary Bowerman 1975-9-14 Contra Costa Mount Diablo, Hidden Pond. Comment
  UC1543007  Crassula aquatica Donald G. Nelson 1937-4-19 505 Contra Costa n.w. corner lot at Sacramento St. on Panhandle Blvd. El Cerrito (1 block w. of San Pablo Ave.) Comment
  UC2032831  Crassula connata Doran, Andrew Scott 2012-3-20 701 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  CAS-BOT-BC427673  Crassula connata Ernest C. Twisselmann 1968-4-4 14071 Contra Costa Botanical Garden, Tilden Regional Park 286 Comment
  UC1795658  Crassula tillaea Barbara Ertter, Gary Schoolcraft 1996-4-7 14578 Contra Costa Molate Beach Park on San Francisco Bay north of San Rafael Bridge; bare edge of lawn-covered bluff. Comment
  SD241801  Crassula tillaea Barbara Ertter, Gary Schoolcraft 1996-4-7 14578 Contra Costa Molate Beach Park on San Francisco Bay north of San Rafael Bridge; bare edge of lawn-covered bluff. Comment
  RSA0026175  Crepis bursifolia Barbara Ertter, David Gowen 2012-6-9 21027 Contra Costa South junction of Big Springs Trail with Seaview Trail, southeastern Tilden Park in Berkeley Hills. Comment
  UCD150913  Cressa truxillensis James A. Neilson Jr. 1972-11-2 3616 Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 1 Comment
  UC692624  Crocanthemum scoparium var. vulgare Mary L. Bowerman 1931-12-17 1072 Contra Costa e of, s face Rock Canyon; Mount Diablo, Fossil Ridge, Dan Cook Ridge Comment
  UCD141936  Croton californicus R. F. Hoover 1935-3-10 s.n. Contra Costa Antioch. Comment
  UCD141957  Croton californicus Peter Rubtzoff 1954-9-14 1755 Contra Costa Along lower San Joaquin River, East of Antioch. Comment
  UCD59835  Crypsis schoenoides G. F. Hrusa; D. Crowe, R. York 1998-7-17 14726 Contra Costa Sacramento-San Joaquin River Delta. East side of Antioch-Pittsburg Hwy at east end of Dow Chemical property. 12 Comment
  SEINET4344622 Image available Crypsis schoenoides Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa. 1995-10-22 14532 Contra Costa Three Springs Trail on NE side of Mt. Diablo, south of crest of Marsh Creek Rd. dried roadside pond, clay. Comment
  UC1618379  Crypsis vaginiflora Barbara Ertter, Brad Olson 1993-8-8 12201 Contra Costa sw of San Ramon (Bishop Ranch Regional Open Space); Bishop Ranch Regional Open Space Comment
  SEINET4343820 Image available Crypsis vaginiflora Unknown 1989-9-30 8865 Contra Costa Tilden Regional Park E of El Cerrito, East Bay Skyline Nat'l Recreation Trail (= Nimitz Way), small dried pond ca 1 1/4 mi NW of Inspiration Point. Comment
  UC2027971  Crypsis vaginiflora Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15659 Contra Costa North base of Mount Diablo, pond on Three Springs Road. Comment
  UC79420  Cryptantha micromeres Katharine Brandegee May 1889 Contra Costa Antioch Comment
  UC691339  Cryptantha torreyana Mary L. Bowerman 1930-6-10 299 Contra Costa Mount Diablo Comment
  CHSC114262  Cucurbita foetidissima D. G. Kelch 2008-9-10 08 .297 Contra Costa North of Waterbird Park along RR tracks. E of Martinez. 2 Comment
  OBI14800  Cuscuta salina G. Thomas Robbins 1959-9-13 4161 Contra Costa On shores of San Pablo Bay, at the N edge of Pinole Comment
  UCD126330  Cuscuta salina Robert E. Preston; Eva Buxton 1994-8-4 677 Contra Costa east end of Briones Valley, west of Marsh Creek Reservoir. 60 Comment
  OBI20821  Cynoglossum grande Neil Havlik 1968-3-25 91 Contra Costa Big Springs Cyn, Charles Lee tilden Regional Park, E of Berkeley 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
  SEINET3909446  Cyperus eragrostis K. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4982 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough. SE portion of Bethel Slough.; 0 610 Comment
  UC2070507  Cyperus erythrorhizos Barbara Ertter with Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 19803 Contra Costa Mudflats at upper (south) end of San Pablo Dam Reservoir northwest of Orinda. Comment
  CAS-BOT-BC113833  Cyperus niger Louis C. Wheeler 1952-10-2 7000 Contra Costa Mount Diablo: ca/ 0.8 mile up from Turtle Ranch, ca. 1 mi downhill from divide in road. Comment
  UC692112  Cystopteris fragilis Mary L. Bowerman 1933-5-21 2156 Contra Costa above Grape Spring gully Sulphur Spring Canyon; Mt. Diablo Comment
  UC692666  Datisca glomerata Mary L. Bowerman 1933-6-21 2336 Contra Costa Mount Diablo, Donner Canyon Donner Canyon; Mount Diablo, Donner Canyon 335 Comment
  UC1790262  Datura stramonium Rudolf Schmid 2005-8-15 2005 -2 Contra Costa 16 Edwin Fr., Kensington, CA 94707-1022 169 Comment
Read comments
Apr 2 2012
  JEPS112311  Datura wrightii Andrew G. Murdock 2004-5-28 308 Contra Costa Hercules - Carbon, along Highway 4 Comment
  UC1606344  Datura wrightii Barbara Ertter, B. Olson, D. Lake, L. Hosley and A. Youngson 1991-10-20 10857 Contra Costa just w Antioch marina (Dow Wetlands Preserve, plowed fields at sw end); Dow Wetlands Preserve Comment
  UC691894  Daucus pusillus Mary L. Bowerman 1931-5-21 878 Contra Costa Curry-Cave Point trail Mt. Diablo; , Curry-Cave Point trail 304 Comment
  RSA216745  Deinandra bacigalupii Robert F. Hoover 1969-8-29 11564 Contra Costa Raymond Road and Ames Street, Livermore Valley. Comment
  JEPS20071  Deinandra corymbosa Peter H. Raven 1957-7-5 11052 Contra Costa tip of Point Isabel Point Isabel Comment
  CAS-BOT-BC294013  Deinandra kelloggii Alice Eastwood 1927-5-19 14445 Contra Costa Byron Springs Comment
  CAS-BOT-BC294021  Deinandra kelloggii John Thomas Howell 1929-7-20 4329 Contra Costa 2 miles s. of Oakley Comment
  JEPS102902  Delairea odorata Barbara Ertter, Chris Thayer 1996-10-25 15358 Contra Costa Little Pine Creek, Diablo Foothills Regional Park Mount Diablo Comment
  UC854138  Delphinium Lewis S. Rose 1940-4-11 40190 Contra Costa low open fields 3 mi s Byron 15 Comment
  UC1818999  Delphinium Barbara Ertter, Tom Delendick 1996-5-2 14615 Contra Costa Mount Diablo State Park, Deer Flat Road north of Juniper Camp, at cut through open live oak forest, northwest-facing slope. 853 Comment
  UC691948  Delphinium californicum Mary L. Bowerman 1935-5-30 3091 Contra Costa rock slide Mount Diablo, Eagle Point Ridge 350 Comment
  JEPS20341  Delphinium californicum W. L. Jepson 1918-6-3 7587 Contra Costa n slopes of mt Mt. Diablo, Donner Canyon (by dead streamlet in bottom of canyon) 685 Comment
  UC72893  Delphinium californicum subsp. interius Milo S. Baker 1904-6-23 Contra Costa Mt. Diablo Comment
  UC906518  Delphinium decorum subsp. tracyi P. B. Kennedy 1916-5-21 Contra Costa between Diablo and summit of Mt. Diablo Comment
Read comments
Jun 4 2007
  JEPS120270  Delphinium hesperium subsp. hesperium Barbara Ertter with David Gowen 2012-6-9 21022 Contra Costa at junction of Seaview Trail and road into EBMUD land north of Vollmer Peak, southeastern Tilden Park in Berkeley Hills Comment
  UC692084  Delphinium hesperium subsp. hesperium Mary L. Bowerman 1938-5-25 3635 Contra Costa s-facing slope above North Road 2.1 mi from North Gate; Mount Diablo 182 Comment
  SEINET11268200  Delphinium hesperium subsp. hesperium Barbara Ertter 1998-5-13 16137 Contra Costa In hills south of Pittsburg, head of SE branch of Loughler Loop Trail.; 0 305 Comment
  UC2028975  Delphinium hesperium subsp. hesperium Barbara Ertter with Kevin Hintsa 2000-5-16 17024 Contra Costa Rock City area on SSW side of Mount Diablo, East Fossil Ridge Trail. Comment
  JEPS6250  Delphinium hesperium subsp. pallescens W. L. Jepson 1923-6-10 9998 Contra Costa Upper Marsh Creek Mount Diablo Comment
  LA38169  Delphinium hesperium subsp. pallescens Lewis; Mehlquist 455 Contra Costa Just E of the Antioch Golf Couse Comment
  LA38170  Delphinium hesperium subsp. pallescens Lewis; Mehlquist 446 Contra Costa S of Antioch, 5.4 mi. N of Marsh Creek rd 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
  UC9202  Delphinium nudicaule W. H. Brewer 1862-5-7 1053 Contra Costa n slope Monte Diablo Comment
  JEPS99976  Delphinium patens G. Smick 2003-3-25 GAS 79 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC9200  Delphinium patens J. Burtt Davy 1895-4-7 964 Contra Costa foothills Antioch Comment
  HSC47898  Delphinium patens H. Lewis, Carl Epling 1944-5-6 Contra Costa 5.7 mi. S of Marsh Creek Rd. on Beck rd. to Livermore Comment
  CAS-BOT-BC116452  Delphinium patens subsp. patens L. R. Abrams 1921-5-25 8066 Contra Costa Summit Mt. Diablo Comment
  POM270661  Delphinium patens subsp. patens Lyman Benson 1935-3-16 62655 Contra Costa Mt. Diablo, Watershed: Walnut Creek; Mountain Range: Mt. Diablo. 915 Comment
  UC9159  Delphinium patens subsp. patens W. H. Brewer 1862-4-30 1017 Contra Costa Walnut Creek, Camp 69 Walnut Creek; , Camp 69 Comment
  UC2028069  Delphinium patens subsp. patens Barbara Ertter with Tony Morosco 1998-4-12 16004 Contra Costa Base of Mount Olympia on north side of Mount Diablo, NE of Olympia Trail. Comment
  JEPS5529  Delphinium recurvatum R. F. Hoover 1938-3-25 2900 Contra Costa Byron Hot Springs Comment
  JEPS90889  Delphinium recurvatum Dean W. Taylor 1991-5-2 11634 B Contra Costa Byron Hot Springs Road 0.3 mi s of Holey Road (San Joaquin Valley); , Byron Hot Springs Road 39 Comment
  LA93067  Delphinium recurvatum Lewis; 1963-4-11 1337 Contra Costa Byron Hot Springs Rd Comment
  POM150573  Delphinium recurvatum C. F. Baker 1903-4-27 s.n. Contra Costa Byron. Comment
Read comments
Oct 4 2007
  CAS-BOT-BC11024  Dendromecon rigida John Thomas Howell 1925-10-11 1497 Contra Costa Moraga Ridge, Oakland Hills Comment
  UC1051410  Dendromecon rigida Helen K. Sharsmith 1954-3-24 4408 Contra Costa canyon above old Nortonville Mines (near Kirker Pass Road between Clayton and Antioch) 304 Comment
Read comments
Oct 2 2015
  CDA1573  Deschampsia cespitosa subsp. holciformis D. G. Kelch 1996-10-17 s.n. Contra Costa Carquinez Strait; Pt Edith Marsh 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
  CAS-BOT-BC192678  Deschampsia danthonioides Ira L. Wiggins 1930-4-17 4576 Contra Costa 1/4 mi S. of Byron Comment
  CDA9487  Deschampsia danthonioides D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .212 Contra Costa Byron Airport. Comment
  JEPS97566  Deschampsia elongata R. D. Stone 1980-7-13 273 Contra Costa Huckleberry Trail Oakland Hills, near Alameda-Contra Costa county line (NE of intersection of Skyline Blvd. and Snake Rd.) 396 Comment
  HSC101953  Dichelostemma capitatum subsp. capitatum Nikolaus Gillen, Michelle Bihler 2014-3-20 4 Contra Costa Mount Diablo State Park. Back Creek Trail. 211 Comment
  JEPS64157  Dichelostemma congestum W. L. Jepson 1918-6-5 7603 Contra Costa Donner Canyon Mt. Diablo 670 Comment
  CAS-BOT-BC502553  Dichelostemma congestum Alice Eastwood 1915-5-30 4474 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC502180  Dichelostemma ida-maia E E Smith 1893-1-1 s.n. Contra Costa near Mount Diablo Comment
  CAS-BOT-BC150331  Diplacus aurantiacus E. E. Stanford 1930-5-24 1514 Contra Costa Marsh Creek Canyon Comment
  RSA603002  Dirca occidentalis Joseph A. Ewan 1934-3-10 8643 Contra Costa 2 miles below Orinda Road bridge, Wildcat Canyon Comment
  SBBG26819  Dirca occidentalis J. A. Ewan 1934-3-10 8643 Contra Costa 2 mi below Orinda Rd bridge, Wildcat Cyn Comment
  UCSB27473  Dirca occidentalis Havlik, Neil 1969-7-10 Contra Costa Along the West Ridge Trail about one-half mile from Skyline Gate, Redwood Regional Park, Oakland Hills 396 Comment
  JEPS108532  Distichlis spicata Lisa Schultheis with Kevin Hintsa 1995-8-20 263 -95 Contra Costa Mount Diablo. 2.1 mi from North Gate kiosk. along North Gate Road. Comment
  UCD64380  Distichlis spicata var. stolonifera A. A. Beetle 1941-6-24 1752 Contra Costa Point Richmond on San Francisco Bay. 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
  JEPS112042  Dodecatheon hendersonii A. G. Murdock 2003-2-21 70 Contra Costa Mt. Wanda - Martinez Edge of chaparral, northeastern area of Mt. Wanda property 115 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
  RSA114055  Downingia insignis H. L. Mason 1952-4-14 14267 Contra Costa 3.5 miles S of Byron Comment
  SEINET3147638  Downingia ornatissima L. S. Rose 1940-4-30 40258 Contra Costa 4 mi S of Antioch 30 Comment
  UCD32386  Downingia ornatissima Beecher Crampton 1950-4-22 530 Contra Costa Contra Costa County, 2 miles south of Antioch, on road from Antioch to Lone Tree Valley, in shallow depression along roadside. 60 Comment
  SJSU3103  Downingia ornatissima var. eximia J. A. Johnson 1956-4-7 11 Contra Costa 1.5 mi E of Concord in El Monte District 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
  JEPS128775  Draba verna Kevin Hintsa 1995-3-4 Contra Costa Deer Flat Road ca 1 mi NE of Juniper Campground, Mount Diablo State Park. Comment
  SEINET5718195  Drimys winteri Shirley C. Tucker 1955-1 6088 B Contra Costa University of California Botanic Garden, Berkeley.; UC Botanic Garden Comment
  UC691090  Drymocallis glandulosa var. wrangelliana Mary L. Bowerman 1931-4-19 748 Contra Costa Mitchell Canyon Mount Diablo, Mitchell Canyon Comment
  JEPS60041  Dryopteris arguta W. L. Jepson 1923-4-22 9869 Contra Costa Mt Diablo Comment
  UC1948932  Dryopteris arguta William J. Ferlatte, L. Maynard Moe 1970-4-27 1245 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC42145  Dryopteris arguta Ivar Tidestrom VI, 1895 7 Contra Costa canyon near Crockett Comment
  CAS-BOT-BC70863  Dryopteris arguta D. E. Breedlove 1970-4-18 17443 Contra Costa north edge of Lafayette above Laurel Drive 243 Comment
  JEPS49894  Dudleya cymosa subsp. paniculata Elizabeth Ferguson 1918-1-1 Contra Costa Donner Canyon Mount Diablo Comment
  UC101030  Dudleya cymosa subsp. paniculata Edw. L. Greene June 1892 Contra Costa Mt Diablo Comment
  UC692560  Dudleya cymosa subsp. paniculata Mary L. Bowerman 1931-6-17 925 Contra Costa e side Riggs Canyon Comment
  UC830948  Dudleya cymosa subsp. paniculata Alice Eastwood 1915-5-30 Contra Costa near type locality; Mount Diablo Comment
  UC2028322  Dudleya cymosa subsp. paniculata Barbara Ertter, Susan D'Alcamo 1998-6-12 16154 Contra Costa North Gate Road on west flank of Mount Diablo near Buckle Point Comment
  UC1818961  Echinochloa crus-galli Barbara Ertter 1995-8-19 14502 Contra Costa Edge of Cerrito Creek on north side of Albany Hill, south edge of El Cerrito; dense weeds at edge of sluggish water. Comment
  CDA2007  Echinochloa crus-galli var. crus-galli D. G. Kelch, A. G. Murdock 2003-8-13 3 .121 Contra Costa Carquinez Strait Region; Martinez Marsh Comment
  CAS-BOT-BC197226  Echinochloa crus-pavonis Mary L. Bowerman 1936-10-24 3582 Contra Costa Mount Diablo. North Road below 2-story house east of North Gate 121 Comment
  SEINET3407322 Image available Echinocystis fabacea var. agrestis Lewis S. Rose 1933-5-13 33165 Contra Costa Marsh creek, Contra Costa County Comment
  UC1050510  Echium fastuosum N. Floy Bracelin 1941-4-20 1215 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC2027936  Eclipta prostrata Barbara Ertter 1996-9-19 15298 Contra Costa Antioch Marina, edge of Dow Marsh lands. Comment
  CDA38938  Eleocharis macrostachya D. G. Kelch 2005-3-24 5 .062 Contra Costa Carquinez Strait Region; Southern Point Pinole. Comment
  JEPS111900  Eleocharis macrostachya D. G. Kelch 2005-3-24 05 .62 Contra Costa Point Pinole Southern Pt. Pinole 3 Comment
  CAS-BOT-BC112794  Eleocharis macrostachya Barrett Anderson 1987-4-29 3484 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD. 125 Comment
  SEINET10747423  Eleocharis macrostachya Barbara J. Ertter 1991-9-28 Ertter 10836 Contra Costa San Pablo Reservoir between Orinda and El Sobrante, dried mud flats at S en of reservoir, 91 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
  UC691172  Elymus X hansenii Mary L. Bowerman 1935-7-22 3184 Contra Costa Mountain Springs Canyon Mount Diablo (about 100 ft from bottom) 670 Comment
  CAS-BOT-BC203828  Elymus X hansenii Mary L. Bowerman 1935-6-1 3109 Contra Costa Mount Diablo. Largest ridge between Ransom Point ridge and Mitchell-Pine divide 1066 Comment
  JEPS111076  Elymus X hansenii Lee Echols 2003-5-4 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
  UC692419  Elymus X saundersii Mary L. Bowerman 1935-5-25 3073 Contra Costa Devil's Pulpit Mount Diablo (w side, on edge of outcrop) 1082 Comment
  SD58360  Elymus condensatus W. L. Jepson 1937-7-2 18445 Contra Costa in a swale one-half mile west of Crockett Comment
  JEPS100017  Elymus glaucus S. O'Neil 2003-5-8 SEO 30 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS68570  Elymus glaucus W. L. Jepson 1918-6-3 7576 Contra Costa Donner Canyon Vicinity of San Francisco Bay, Mt. Diablo 533 Comment
  JEPS99562  Elymus glaucus Mary Bowerman 1995-7-2 Contra Costa Mount Diablo, (probably Back Canyon or foot trail to Donner Canyon). Comment
  RSA722472  Elymus glaucus Barbara Ertter 2002-6-16 17953 Contra Costa Richmond Field Station, southwest end of overgrown meadow near boundary with park, edge of thick growth facing fence. Comment
  UCD61820  Elymus glaucus Beecher Crampton 1956-5-14 3382 Contra Costa Markley Canyon, on the Somersville Road, 4.4 miles southwest of Antioch. Comment
  UC691206  Elymus glaucus Mary L. Bowerman 1933-5-3 1988 Contra Costa Mountain Springs Canyon Mount Diablo (at trough for deer (later Pioneer fire rd was built across canyon at this spot), 3 ft from stream) Comment
  CAS-BOT-BC203433  Elymus glaucus subsp. glaucus Mary L. Bowerman 1935-5-3 2964 Contra Costa Mount Diablo. Sloan Road 487 Comment
  UC691170  Elymus multisetus Mary L. Bowerman 1933-6-7 2262 Contra Costa North Peak Mount Diablo Comment
  UCD62502  Elymus multisetus Beecher Crampton 1956-5-14 3425 Contra Costa Above Port Costa Brick Works, 4 miles west of Martinez on the road to Crockett. Comment
  UC672376  Emmenanthe penduliflora Herbert L. Mason 1928-4-22 4434 Contra Costa Sycamore Canyon, south slope of Mount Diablo Comment
  UCD150882  Epilobium brachycarpum James A. Neilson Jr. 1972-11-2 3605 Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 Comment
  UC692445  Epilobium campestre Mary L. Bowerman 1931-6-16 929 Contra Costa scattered in central area Chase Pond; Mt. Diablo 563 Comment
  CAS-BOT-BC166825  Epilobium canum subsp. latifolium M. K. Curran 1883-10-1 s.n. Contra Costa [Marsh's] Marsh Creek Comment
  UC1122344  Epilobium densiflorum H. S. Yates 1934-9-2 4075 Contra Costa 1 1/2 mi nw Orinda; Concord Quadrangle Comment
  UC2028435  Epilobium densiflorum Barbara Ertter with Chris Thayer 1996-10-25 15352 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothill Regional Park Comment
  UC2028026  Epilobium densiflorum Barbara Ertter 1997-9-14 15807 Contra Costa West side of Mount Diablo, Pine Creek upstream from Dusty Trail. Comment
  CDA9496  Epilobium pygmaeum D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .22 Contra Costa Byron Airport. Comment
  POM300615  Epipactis gigantea Mary L. Bowerman 1931-5-28 906 Contra Costa Mount Diablo: Pine Canyon, gully to south at east end of Castle Rock Farm: on dry waterfall between 2 pools Comment
  UC1005902  Epiphyllum N. Floy Bracelin 1943-5-16 2513 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  SEINET11614121  Equisetum telmateia subsp. braunii W. Knight, Knight, I. 1983-1 4771 Contra Costa Berkeley, Tilden Regional Park, botanic garden 305 Comment
  CDA31759  Eragrostis cilianensis Deviney 2007-8-2 PDR# 1455080 Contra Costa Brentwood (Knightsen); orchard on Sellers Ave. N of Delta Rd. Comment
  RSA118089  Eragrostis curvula J. T. Howell 1954-9-5 30026 Contra Costa Along road, Marsh Creek Springs Park Comment
  UCD63814  Eragrostis mexicana subsp. virescens Beecher Crampton 1965-9-29 7531 Contra Costa 1 mile south of Oakley, Cypress Road and O' Hara Ave. Comment
  JEPS123272  Eriastrum ertterae David Gowen 2005-6-5 404 Contra Costa Lime Ridge Open Space. Hill 724 east of the golf course. Comment
  UC691864  Ericameria arborescens Mary L. Bowerman 1933-9-9 2438 Contra Costa ridge above Frog Pond; Mt. Diablo Comment
  CAS-BOT-BC131504  Ericameria arborescens H. E. McMinn 1922-3-1 394 Contra Costa Mt. Diablo, 2 or 3 miles from Tall Gate Comment
  CHSC39489  Ericameria linearifolia Tyler Williams; V. Oswald 1984-4-18 22 Contra Costa Mt. Diablo. At turnout ca. 4 yd n of South Park Rd., 0.2 mi sw of Junction Ranger Station in Mt. Diablo State Park. 579 Comment
  UC1118731  Ericameria linearifolia R. C. Wilson 1935-3-28 151 Contra Costa 1 mi s Mt. Diablo; Mt. Diablo Quad. 685 Comment
  UC31471  Erigeron foliosus var. franciscensis Edw. L. Greene 1892-6-20 Contra Costa Mount Diablo Comment
  UC2070521  Erigeron foliosus var. franciscensis Barbara Ertter with Delia Taylor 2003-6-22 18228 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, N-facing slope along Arata Overlook Trail NE of park headquarters. Comment
  UC482974  Erigeron foliosus var. franciscensis Mrs. G. Earle Kelly 1932-7-20 Contra Costa after junction on mountain road Mount Diablo Comment
  CAS-BOT-BC295955  Erigeron philadelphicus Mary L. Bowerman 1935-5-16 2998 Contra Costa Mount Diablo. Russelman [Russellmann] Park road at Gregory Ranch junction 289 Comment
  UC87849  Erigeron philadelphicus var. philadelphicus T. S. Brandegee 1892-5-1 Contra Costa Antioch Comment
  UC24044  Eriodictyon californicum W. H. Brewer 1862-5-22 1133 Contra Costa ne Monte Diablo; ne of Monte Diablo Comment
  CAS-BOT-BC248088  Eriogonum angulosum H. M. Hall 1916-8-17 10276 Contra Costa Deer Valley 182 Comment
  CDA22474  Eriogonum angulosum J. Simmen 1958-11-6 1515 -58 Contra Costa Palm Tract, Brentwood. 0 Comment
  POM165547  Eriogonum angulosum H. M. Hall 1916-8-17 10276 Contra Costa Deer Valley 183 Comment
  JEPS108225  Eriogonum covilleanum David Gowen 2005-5-6 281 Contra Costa Mt. Diablo State Park. Talus slope on the south side of North Peak. Comment
  CAS-BOT-BC250381  Eriogonum gracile Mary L. Bowerman 1932-8-27 1524 Contra Costa Mount Diablo. South of Turtle Rock Comment
  UC1032304  Eriogonum gracile G. T. Nordstrom 1937-10-28 1409 Contra Costa 1.6 mi nne Somersville; Mt. Diablo Quadrangle Comment
  UC2012971  Eriogonum gracile Barbara Ertter with Tony Morosco 1996-7-27 15040 Contra Costa Mount Diablo State Park, Cardinet Oaks Road at crossing of Donner Creek. Comment
  UC692016  Eriogonum gracile var. gracile Mary L. Bowerman 1932-9-3 1540 Contra Costa summit of Mount Diablo Mount Diablo Comment
  UC692018  Eriogonum gracile var. gracile Mary L. Bowerman 1932-11-11 1639 Contra Costa Little below Moses Rock Spring (ridge leading up from Buckle Point (on west road)); Mount Diablo Comment
  RSA107410  Eriogonum gracile var. gracile L. S. Rose 1955-10-17 55187 Contra Costa Antioch 15 Comment
  CAS-BOT-BC259139  Eriogonum latifolium John Thomas Howell 1930-7-4 5336 Contra Costa In the north Berkeley Hills Comment
  UC737822  Eriogonum luteolum var. luteolum R. F. Hoover 1940-11-23 4693 Contra Costa 8 mi e on Marsh Creek Road Clayton Comment
  JEPS112018  Eriogonum nudum subsp. nudum Dean G. Kelch and Andrew G. Murdock 2004-5-28 AGM 293 Contra Costa Pinole Peak. Comment
  CHSC20713  Eriogonum nudum var. auriculatum Robert A. Schlising 1963-7-13 2627 Contra Costa Along Grizzly Peak Blvd, Berkeley-Oakland Hills. Comment
  JEPS75518  Eriogonum nudum var. auriculatum P. F. Yorks 1975-7-18 475 -A Contra Costa ca. 1.7 km s on Hampton Road in Hampton Road Natural Preserve Bear Creek Road (n of Briones Reservoir) 190 Comment
  UC692165  Eriogonum nudum var. auriculatum Mary L. Bowerman 1933-9-3 2425 Contra Costa North Peak ridge Mount Diablo Comment
  UC692197  Eriogonum nudum var. auriculatum Mary L. Bowerman 1932-9-17 1578 Contra Costa Donner Canyon, w branch below fork Mount Diablo Comment
  UC2029055  Eriogonum nudum var. auriculatum Barbara Ertter with Delia Taylor 2003-6-22 18227 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
  RSA0086416  Eriogonum nudum var. psychicola Jerry A. Powell 1962-8-19 308 Contra Costa About 2 miles east of Antioch. Comment
  UC692195  Eriogonum nudum var. pubiflorum Mary L. Bowerman 1932-9-17 1586 Contra Costa Donner Canoyn, w fork toward mouth Mount Diablo Comment
  SEINET11938139  Eriogonum nudum var. pubiflorum M. T. Doutt 1930-1 99 Contra Costa Marsh Creek Comment
  UC762690  Eriogonum roseum R. F. Hoover 1940-11-30 4699 Contra Costa 2 mi s Antioch Comment
  CAS-BOT-BC267440  Eriogonum truncatum John Thomas Howell 1934-4-8 11816 Contra Costa 10 miles from Clayton on Marsh Creek road Comment
  CAS-BOT-BC267442  Eriogonum truncatum John Thomas Howell 1934-4-8 11816 Contra Costa 10 miles from Clayton on Marsh Creek Road Comment
  LA207022  Eriogonum truncatum John Thomas Howell; 1934-4-8 11816 Contra Costa 10 mi. from Clayton on Marsh Creek Road Comment
  POM165269  Eriogonum truncatum C. F. Baker 1903-4-28 2833 Contra Costa Marsh Creek, Mount Diablo Comment
  UC85720  Eriogonum truncatum M. K. Curran May 1886 Contra Costa Antioch Comment
  JEPS108317  Eriogonum umbellatum var. bahiiforme David Gowen 2005-5-29 398 Contra Costa West of Morgan Territory Rd. and the main entrance to Morgan Territory Regional Preserve. Rocky area west of summit of hill 2581 (Tassajara Pk.?). Comment
  RSA420628  Eriogonum umbellatum var. bahiiforme Cora Mae Life 1924-07 s.n. Contra Costa Mount Diablo Comment
  UC306913  Eriogonum umbellatum var. bahiiforme A. D. E. Elmer July, 1903 4547 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC262352  Eriogonum vimineum John Thomas Howell 1955-8-24 30903 Contra Costa Near summit of South Peak, Mt. Diablo Comment
  CAS-BOT-BC298507  Eriophyllum confertiflorum Alice Eastwood 1915-6-21 4739 Contra Costa San Leandro Comment
  CAS-BOT-BC298506  Eriophyllum confertiflorum L. Constance 1933-6-25 E 95 Contra Costa About halfway to the summit of Mount Diablo Comment
  CAS-BOT-BC298509  Eriophyllum confertiflorum H. E. McMinn 1923-6-18 1152 Contra Costa Horn Canon Comment
  JEPS75549  Eriophyllum confertiflorum var. confertiflorum P. F. Yorks 1974-6-16 176 Contra Costa on Hampton Road 1.6 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  SEINET10761151  Eriophyllum jepsonii Barbara J. Ertter, Holly Forbes 1997-4-20 Ertter 15562 Contra Costa North base of Mount Diablo, Eagle Peak Trail on NE side of Eagle Ridge below Twin Peaks, mixed chaparral-brush with Ptelea et al. Comment
  CAS-BOT-BC300970  Eriophyllum lanatum var. achilleoides E. E. Stanford 1930-5-24 1513 Contra Costa Marsh Creek Canyon Comment
  JEPS34598  Eriophyllum lanatum var. achilleoides W. L. Jepson 1918-6-3 7577 Contra Costa Mt. Diablo Comment
  UC691665  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1935-5-22 3065 Contra Costa Eagle Point Ridge = most w of two ridges which converge at Twin Peaks; Mt. Diablo, Eagle Point Ridge 365 Comment
  UC691723  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1935-5-30 3097 c Contra Costa between the two ridges which converge at Twin Peaks (Eagle Point ridge) Mount Diablo 350 Comment
  UC697147  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1938-6-14 3687 Contra Costa 0.3 mi below Muir Area Mt. Diablo 960 Comment
  CAS-BOT-BC300965  Eriophyllum lanatum var. achilleoides L. Constance 1933-6-25 E 101 Contra Costa South slope, just below summit of Mount Diablo 1066 Comment
  CAS-BOT-BC300972  Eriophyllum lanatum var. achilleoides L. R. Abrams 1921-5-26 8003 Contra Costa Mt Diablo Comment
  CAS-BOT-BC300980  Eriophyllum lanatum var. achilleoides L. Constance 1933-6-25 E 97 Contra Costa South slope, 1 mile below summit of Mt. Diablo Comment
  CAS-BOT-BC300982  Eriophyllum lanatum var. achilleoides Lincoln Constance; Helen Sharsmith; Carl Sharsmith 1933-4-30 E 17 Contra Costa Black Hills, Mount Diablo Comment
  UCR51773  Eriophyllum lanatum var. grandiflorum E. E. Stanford 1930-5-24 1513 Contra Costa Marsh Creek Canyon Comment
  UC692708  Erodium botrys Mary L. Bowerman 1931-3-14 571 Contra Costa Windy Point Mount Diablo Comment
  UC17062  Erodium macrophyllum J. Burtt Davy 1895-4-7 945 Contra Costa Antioch Comment
  UC21040  Eryngium aristulatum var. aristulatum Jos. Burtt Davy 1900-6-7 6660 Contra Costa near Martinez Comment
  UC692317  Eryngium aristulatum var. aristulatum Mary L. Bowerman 1936-6-20 3417 Contra Costa w. Mt. Zion (near rd. to Matthew's house (s.w. 1/4 section 15), just below house); Mt. Diablo Comment
  UC2062628  Eryngium armatum Barbara Ertter 2002-5-16 17864 Contra Costa Richmond Field Station (UC-Berkeley). Comment
  CDA38315  Eryngium jepsonii D. G. Kelch 2004-7-9 4 .297 Contra Costa Carquinez Strait region; Crockett - Carquinez Scenic Drive; just west of Pt. Costa. Comment
  UC1190972  Eryngium vaseyi Lincoln Constance, Reino Alava and Rimo Bacigalupi 1958-6-6 3661 Contra Costa 3 mi. s.e. Byron; San Joaquin Valley 10 Comment
  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
  UC765562  Eryngium vaseyi R. F. Hoover 1937-5-14 2124 Contra Costa Byron Hot Springs Comment
  CAS-BOT-BC40764  Erysimum capitatum Alice Eastwood 1921-4-18 10285 Contra Costa Antioch. Comment
  CAS-BOT-BC40766  Erysimum capitatum Alice Eastwood; John Thomas Howell 1936-4-19 2151 Contra Costa Antioch sand hills. Comment
  CAS-BOT-BC40769  Erysimum capitatum G. B. Rossbach; R. P. Rossbach 1938-6-5 858 b Contra Costa Along tidal estuary of San Joaquin River just east of Antioch. Comment
  UC1126602  Erysimum capitatum R. C. Wilson 1935-3-28 152 Contra Costa 1 mi s Mount Diablo; Mt. Diablo Quadrangle Comment
  UC1126603  Erysimum capitatum C. M. Belshaw 1936-5-8 2053 A Contra Costa se slope Mt. Diablo Quadrangle, Mt. Diablo (Plot 5) Comment
  CAS-BOT-BC40771  Erysimum capitatum A. A. Heller 1908-4-16 8898 Contra Costa Eat of Antioch. 22 Comment
  RSA0008587  Erysimum capitatum var. angustatum Alice Eastwood, J. T. Howell 1936-4-19 s.n. Contra Costa Antioch Comment
  SBBG92005  Erysimum capitatum var. capitatum H. L. Mason 1933-4-9 7189 Contra Costa E of Antioch along the San Joaquin River 12 Comment
  UC1034753  Erysimum capitatum var. capitatum G. B. Rossbach 1955-3-13 570 Contra Costa dunes along tidal estuary of river just e Antioch; San Joaquin R 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
  UC2028070  Erysimum capitatum var. capitatum Barbara Ertter with Tony Morosco 1998-4-12 16003 Contra Costa Base of Mount Olympia on north side of Mount Diablo, NE of Olympia Trail. Comment
  JEPS111863  Erysimum cheiri D. G. Kelch 2004-4-11 04 .75 Contra Costa Crockett - Crolona Heights Hillside above Rolf Drive. Lower Crolona heights 15 Comment
  UC726212  Eschscholzia A. A. Heller 1938-4-9 15018 Contra Costa 3 mi sw of Antioch Comment
  CAS-BOT-BC402981  Eschscholzia californica A. Eastwood 1894-5-4 s.n. Contra Costa Walnut Cr. Comment
  CAS-BOT-BC402994  Eschscholzia californica Brandegee 1889-5-1 s.n. Contra Costa Antioch Comment
  JEPS75473  Eschscholzia californica P. F. Yorks 1974-2-24 112 Contra Costa ca 2 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve 200 Comment
  UC1126420  Eschscholzia californica R. C. Wilson 1935-3-29 159 Contra Costa 1 mi sw Mt. Diablo; Mt. Diablo Quadrangle 1005 Comment
  UC125904  Eschscholzia californica Katharine Brandegee 1908-6-16 4 Contra Costa 5 mi s Antioch Comment
  UCD84944  Eschscholzia californica Chuck Hughes 2010-3-29 216 Contra Costa About 0.7 mile south of Vasco Road. 238 Comment
  PASA450  Eschscholzia californica Annetta Carter 1929-3-31 Contra Costa Near Clayton. Hills north of Mt. Diablo Comment
  UC2028364  Eucalyptus camaldulensis Barbara Ertter 1998-6-20 16260 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Borges Ranch Road at junction to private residences Comment
  UC1789212  Eucalyptus tereticornis Barbara Ertter 1998-5-10 16116 Contra Costa Lime Ridge Open Space, single sapling in quarry area on west side. [Flowering material collected from same plant in 2001 as Ertter17604] Comment
  CDA40312  Eucrypta chrysanthemifolia D. G. Kelch 2005-5-13 5 .273 Contra Costa Carquinez Strait Region; Martinez - West: Ozol Rock and Scenic Drive, near Ozol Rock. Comment
  UCSB5236  Eucrypta chrysanthemifolia Kamb, Peter; Chisaki, Francia 1950-3-18 Contra Costa Black Hills, S of Mt. Diablo, on south road to Mt. Diablo from Danville 365 Comment
  JEPS111510  Eucrypta chrysanthemifolia var. chrysanthemifolia Dean G. Kelch and Andrew G. Murdock 2005-5-13 05 .273 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 22 Comment
  UC570798  Euphorbia crenulata H. L. Mason 1926-3-7 2701 Contra Costa Mount Diablo Comment
  CDA18018  Euphorbia oblongata R. Fonseca 1999-5-27 PDR 1219265 Contra Costa Along Franklin Canyon Rd, Martinez. 0 Comment
  CDA35612  Euphorbia oblongata V. Guise 2011-5-2 PDR# 1649668 Contra Costa Danville; 2600 Finley Road. 0 Comment
  JEPS100098  Euphorbia oblongata A. Langston 2003-6-19 AL 93 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1276068  Euphorbia oblongata T. C. Fuller 1959-6-25 2679 Contra Costa ca 4 mi w Martinez; Alhambra Valley Comment
  UC2032843  Euphorbia oblongata Doran, Andrew Scott 2012-3-20 714 Contra Costa Trail down from highest point of Brooks Island. South east part of Island. Comment
  UCR247571  Euphorbia oblongata Deviney 2008-4-18 s.n. Contra Costa Pacheco, Waterbird Way and Hwy 680 Comment
  CDA4843  Euphorbia oblongata T. C. Fuller 1961-7-6 6585 Contra Costa Carquinez Strait; Alhambra Valley, Highway 4, 0.5 mile west of Glen Frazier Station, ca. 4 miles west of Martinez. 0 Comment
  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
  RSA600234  Euphorbia oblongata L. C. Wheeler 1958-8-26 7446 Contra Costa Ca. 2 mi. southwest of Martinez, 0.3 mi. northwest of Glen Frazer on Santa Fe; apparently Franklin Canyon/ 1.7 mi. west of Martinez at limit on California Route 4. Comment
  RSA95829  Euphorbia ocellata subsp. ocellata L. S. Rose 1953-10-12 53096 Contra Costa Mt. Diablo. 381 Comment
  UC2029075  Euphorbia peplus Barbara Ertter 2000-7-16 17406 Contra Costa Pine Creek on WNW base of Mount Diablo, willow patch above Pine Pond. Comment
  CDA32926  Euphorbia spathulata D. G. Kelch 2009-5-24 9 .295 Contra Costa Carquinez Strait; Carquinez Loop Trail S of Ozol, S-SW of Martinez, nr Wolcott Ln . Comment
  UC2062608  Euphorbia spathulata Barbara Ertter with David Gowen, Mike Park, Wilde Legard 2004-4-13 18345 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, east of River View Loop Trail, over saddle east of park headquarters at Sidney Flat Comment
  UC615424  Euphorbia spathulata Beryl O. Schreiber 1932-3-27 128 Contra Costa Mountain House Comment
  UC692696  Euphorbia spathulata Mary L. Bowerman 1931-5-2 792 Contra Costa n end Eagle Point ridge; Mount Diablo Comment
  UC1618412  Eurybia radulina Barbara Ertter with Dianne Lake 1991-8-18 10675 Contra Costa e. Crockett (above pilings n.e. of Bull Valley staging area, Carquinez Strait Regional Shoreline); Carquinez Strait Regional Shoreline Comment
  UC2028012  Eurybia radulina Barbara Ertter 1997-11-1 15882 Contra Costa South side Mount Diablo, end of spur road east of Knobcone Point, below powerline crossing at head of Alamo Creek drainage. Comment
  JEPS111726  Euthamia occidentalis D. G. Kelch 2004-7-9 04 .309 Contra Costa Pacheco Marsh Pacheco hill Marsh west of Pacheco Slough 5 Comment
  UC2028487  Festuca arundinacea Barbara Ertter 1998-5-3 16047 Contra Costa Pine Canyon/Stage Road upstream from Dusty Road junction, southwest flank of Mount Diablo Comment
  CAS-BOT-BC278272  Festuca californica J. W. Congdon 1896-5-29 s.n. Contra Costa Mt Diablo Comment
  UC2028572  Festuca microstachys Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15521 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UC2028144  Festuca microstachys Barbara Ertter 1998-4-4 15971 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, Fossil Hill. Comment
  UC2032820  Festuca myuros Doran, Andrew Scott 2012-3-20 690 Contra Costa North end of Brooks Island along ridge overlooking artificial spit, southwest of caretakers residence. Comment
  UCSB12515  Festuca perennis Grah, Nancy 1962-4-14 Contra Costa .6 miles north of Miner Rd. on Sleepy Hollow Lane, Orinda 182 Comment
  UCD66330  Festuca rubra P. B. Kennedy 1919-5-1 s.n. Contra Costa North Berkeley. Hills. Comment
  UCD66332  Festuca rubra P. B. Kennedy 1919-5-1 s.n. Contra Costa North Berkeley. Hills. Comment
  UC2028438  Ficus carica Barbara Ertter with Chris Thayer 1996-10-25 15356 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park Comment
  JEPS100135  Foeniculum vulgare A. Langston 2003-7-28 AL 79 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691811  Foeniculum vulgare Mary L. Bowerman 1931-10-5 1052 Contra Costa Marsh Creek Rd. near saddle by dry streambed Mt. Diablo 274 Comment
  UC691899  Forestiera pubescens Mary L. Bowerman 1936-6-20 3414 Contra Costa w side of ridge w Mt. Zion; Mount Diablo 198 Comment
  CAS-BOT-BC223861  Frankenia salina Walter Knight; Irja Knight 1968-8-14 2418 Contra Costa On Contra Loma Drive, north side of road, Contra Loma Regional Park, near Antioch Comment
  RSA518721  Frankenia salina Barbara Ertter, E. Neese 1988-10-15 7977 Contra Costa West of I-580 in El Cerrito, west side along Rydin Road north of Central Avenue. Comment
  RSA739727  Frankenia salina John Dittes 2006-10-26 1413 Contra Costa San Joaquin Valley (foothills near NW edge) 2 air mile S of Marsh Creek Reservoir Gauging Station, 1.6 air mile SW of intersection of Camino Diablo and Vasco Road, Contra Costa Water District's Los Vaqueros Watershed Mitigation. 67 Comment
  CAS-BOT-BC223391  Fraxinus dipetala Mary L. Bowerman 1935-6-1 3104 Contra Costa Mount Diablo. First small ridge east of Mitchell-Pine divide 975 Comment
  UC691869  Fraxinus dipetala Mary L. Bowerman 1930-6-22 363 Contra Costa Mitchell Canyon Mount Diablo Comment
  CDA37274  Fraxinus velutina D. G. Kelch 2011-3-31 11 .077 Contra Costa Carquinez Region; Richmond; Hilltop Lake Park. Comment
  JEPS16560  Fremontodendron californicum H. H. Haworth 1917-5-3 Contra Costa Redwood Peak, Oakland Hills Comment
  UC672112  Fritillaria affinis Herbert L. Mason 1925-3-10 1293 Contra Costa Mount Diablo, Sycamore Canyon Sycamore Canyon; Mount Diablo, Sycamore Canyon Comment
  JEPS61883  Fritillaria agrestis Miss Linda Gehringer 1915-3-27 Contra Costa east side of Mount Diablo Mount Diablo Comment
  UC13832  Fritillaria liliacea J. Burtt Davy 1900-3-24 6530 Contra Costa Stege; Western Middle California, Stege Comment
  JEPS113074  Fumaria capreolata Barbara Ertter 1999-3-21 16486 Contra Costa Miller Knox Regional Park near Point Richmond, edge of old excavation into rock (southeast of Richmond Ramblers building). Comment
  UC1789195  Fumaria capreolata Barbara Ertter 1999-3-21 16486 Contra Costa Miller Knox Regional Park near Point Richmond, edge of old excavation into rock (southeast of Richmond Ramblers building). Comment
  UCR263793  Fumaria capreolata Barbara Ertter 1999-3-21 16486 Contra Costa Central Coast, Miller Knox Regional Park near Point Richmond, southeast of Richmond Ramblers building 15 Comment
  CAS-BOT-BC422442  Fumaria capreolata Barbara Ertter 1999-3-21 16486 Contra Costa Miller Knox Regional Park near Point Richmond, edge of old excavation into rock (southeast of Richmond Ramblers building). Comment
  SD241825  Fumaria capreolata Barbara Ertter 1999-3-21 16486 Contra Costa Miller Knox Regional Park near Point Richmond, edge of old excavation into rock (southeast of Richmond Ramblers building) Comment
  JEPS124468  Galium andrewsii subsp. gatense Daniel Slakey with CNPS Volunteers 2015-7-6 139 Contra Costa Mt Diablo, along Oak Knoll Trail about 350 meters east of Summit Rd. Comment
  JEPS7030  Galium andrewsii subsp. gatense W. L. Jepson 1918-6-5 7606 Contra Costa summit North Peak Mt. Diablo 1066 Comment
  JEPS7032  Galium andrewsii subsp. gatense Mary L. Bowerman 1930-6-7 283 Contra Costa Meridian Peak summit Mount Diablo Comment
  CHSC21612  Galium aparine Willis Ball 1975-2-23 440 Contra Costa Contra Loma Regional Park. In area #2. On SE side of hill ca. 20 yds W of boat ramp at W side of lake. 45 Comment
  JEPS111526  Galium aparine D. G. Kelch 2005-5-5 05 .211 Contra Costa Point Pinole - Giant Marsh Giant Salt Marsh 3 Comment
  JEPS112111  Galium aparine D. G. Kelch 2005-3-24 05 .53 Contra Costa Point Pinole. Southern Pt. Pinole. 3 Comment
  JEPS75515  Galium aparine P. F. Yorks 1976-4-11 505 a Contra Costa on Hampton Rd ca 1.4 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Preserve Comment
  OBI70584  Galium aparine D. G. Kelch 2007-3-24 7 .091 Contra Costa Ozol; between Port Costa and Martinez near old brick quarry 52 Comment
  UC1618054  Galium aparine Donald G. Nelson 1937-3-30 469 Contra Costa along Marsh Creek Rd. between Clayton and Byron Comment
  UC1948947  Galium aparine William J. Ferlatte, L. Maynard Moe 1970-4-27 1247 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC606742  Galium aparine Edward Lee 1936-4-19 1966 Contra Costa bluff at ne corner of island San Francisco Bay, Red Rock Comment
  UC691539  Galium aparine Mary L. Bowerman 1931-3-21 590 Contra Costa Sycamore Canyon Mount Diablo 335 Comment
  UC1614104  Galium californicum Charles M. Belshaw 1935-6-24 786 Contra Costa Bald Peak ca. 1/2 mi. e. Grizzly Peak; Bald Peak Comment
  UC691534  Galium californicum subsp. californicum Mary L. Bowerman 1931-5-21 883 Contra Costa ridge w Curry-Cave Point Trail; Mount Diablo 533 Comment
  JEPS112108  Galium murale D. G. Kelch 2004-3-12 04 .36 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road 220 Comment
  JEPS49754  Galium murale Rimo Bacigalupi, and Alice Howard, and Paul Hutchison 1967-3-29 9222 Contra Costa upper reaches of canyon Las Trampas Ridge, Bolinger Canyon (w slope of ridge) 381 Comment
  UC2028273  Galium murale Barbara Ertter 1999-6-12 16703 Contra Costa Black Hawk Ridge Road between Knobcone Point Road and NE fork of Sycamore Creek, South side of Mount Diablo. Comment
  UC2028303  Galium parisiense Barbara Ertter, Susan D'Alcamo 1998-6-12 16168 Contra Costa North Peak Trail from Devil's Elbow on SE side of Mount Diablo summit. Comment
  UC691551  Galium porrigens Mary L. Bowerman 1931-2-8 503 Contra Costa 4.5 mi by road from North Gate; Mount Diablo, Mineral Spring Comment
  UC579540  Galium tricornutum C. M. Belshaw 1936-5-13 2124 Contra Costa s Horse Valley (ne of Mt. Diablo); Mt. Diablo Quadrangle 121 Comment
  CAS-BOT-BC304346  Gamochaeta pensylvanica Gordon H. True 1975-6-27 7872 A Contra Costa Tilden Regional Park Botanic Garden, Tilden Regional Park, Wildcat Canyon Comment
  CAS-BOT-BC304349  Gamochaeta pensylvanica I. M. Johnston 1917-4-14 1841 Contra Costa Upland Comment
  UC697203  Gamochaeta ustulata Mary L. Bowerman 1938-6-2 3654 Contra Costa 100 yds n Rock City Camp; Mount Diablo, Dan Cook Canyon 548 Comment
  CAS-BOT-BC200632  Garrya elliptica H. E. McMinn 1925-3-30 1403 Contra Costa Near summit Thornhill Rd and Skyline Blvd. Comment
  JEPS77009  Garrya elliptica Robert M. Lloyd 1963-3-17 2137 Contra Costa across from 7090 Skyline Drive (0.5 mi e of intersection of Grizzly Peak Road and Skyline Drive, on Skyline Drive, Huckleberry Trail); Skyline Drive, Huckleberry Trail Comment
  CAS-BOT-BC200630  Garrya elliptica H. E. McMinn 810 Contra Costa Oakland Hills Comment
  UC2028041  Garrya elliptica Barbara Ertter 1998-3-7 15928 Contra Costa Southwest side of Mount Diablo, west-most knoll on Fossil Ridge, at end of fire road. Comment
  UC634790  Garrya flavescens H. L. Mason 1926-3-7 2711 Contra Costa Mount Diablo Comment
  RSA721733  Garrya flavescens subsp. flavescens Barbara Ertter, Holly C. Forbes 1996-2-11 14549 Contra Costa North side Mount Diablo; Murchio Gap on Median Ridge Road. 732 Comment
  CAS-BOT-BC169944  Garrya fremontii Lewis S. Rose 1954-6-29 54084 Contra Costa Mt. Diablo, summit 1170 Comment
  SEINET10963567  Gastridium phleoides Virginia E. Long 1933-6-14 Long 224 a Contra Costa Mt. Diablo. Grassy ridge of Curry Cave trail. 366 Comment
  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
  UC692392  Gastridium ventricosum Mary L. Bowerman 1933-5-25 2190 Contra Costa Oyster Ridge, w end of s face Mount Diablo; , Oyster Ridge, w end of s face Comment
  CDA42355  Genista monspessulana D. G. Kelch, Vince Guise 2012-7-26 12 .241 Contra Costa Wildcat Canyon Park, Alvarado Unit. Comment
  JEPS61421  Geranium dissectum W. L. Jepson 1923-4-22 9862 Contra Costa Mt. Diablo Comment
  JEPS75472  Geranium dissectum P. F. Yorks 1974-4-19 132 Contra Costa ca 1.5 km s Bear Creek Road (on Hampton Road, n of Briones Reservoir); Hampton Road Natural Reserve Comment
  UC1614072  Geranium dissectum Charles M. Belshaw 1935-6-24 781 Contra Costa 1/2 mi E of Grizzly Peak (Bald Peak) Comment
  UC692706  Geranium dissectum Mary L. Bowerman 1930-6-28 401 Contra Costa Lower Silver Spring Mount Diablo Comment
  CDA29060  Geranium molle D. G. Kelch 2006-5-7 6 .154 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  JEPS111972  Geranium molle D. G. Kelch 2004-5-9 04 .203 Contra Costa Crockett - Edwards Canyon Upper Edwards Canyon 160 Comment
  UC1300816  Geranium molle Helen K. Sharsmith 1962-4-18 4956 Contra Costa Reliez Valley Road San Francisco Bay Region 152 Comment
  UC2032837  Geranium molle Doran, Andrew Scott 2012-3-20 707 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  UCD103444  Geranium molle Helen K. Sharsmith 1962-4-18 4956 Contra Costa Reliez Valley Road. 152 Comment
  CDA28932  Geranium rotundifolium D. G. Kelch 2009-6-7 9 .351 Contra Costa Carquinez Strait; Crockett, under Zampa Bridge on N facing slope. Comment
  SD241830  Geranium rotundifolium Barbara Ertter 1996-6-4 14684 Contra Costa Tilden Regional Park in hills east of Berkeley, restoration site northeast of junction of Grizzly Peak Boulevard & Golf Course Drive. Comment
  RSA67597  Gilia achilleifolia Verne Grant, Alva Grant 1948-5-2 8424 Contra Costa in Bear Creek Canyon, 0.5 miles north of summit and ca. 3.8 miles from Orinda-San Pablo road. Comment
  UC2022570  Gilia achilleifolia subsp. multicaulis Lewis S. Rose 1934-3-21 34067 Contra Costa 6 mi E of Clayton. Comment
  UC908902  Gilia achilleifolia subsp. multicaulis Herbert L. Mason 1928-4-15 4357 Contra Costa top of Morago Ridge Morago Ridge Comment
  SEINET12278771  Gilia capitata H. M. Hall 1901-1 s.n. Contra Costa Region of San Francisco Bay, Mt. Diablo Comment
  UCR178962  Gilia clivorum Peter L. Morrell, N. Takebayashi 1995-5-21 472 Contra Costa Central Coast, S of Clayton in Mitchell Canyon, above the banks of Mitchell Creek and beneath Eagle Peak 400 Comment
  RSA489707A  Gilia tricolor H. de Forest 1930-3-28 s.n. Contra Costa Mt. Diablo. Comment
  SEINET12278815  Gilia tricolor J. G. Lemmon 1878-1 s.n. Contra Costa side of Mt. Diablo Comment
  JEPS85957  Gilia tricolor subsp. tricolor A. L. Grant 1915-3-14 Contra Costa Antioch Comment
  UC52505  Gilia tricolor subsp. tricolor H. M. Hall 1901-4-5 1727 Contra Costa Mt. Diablo Region of San Francisco Bay, Mt. Diablo 411 Comment
  UC2029034  Gilia tricolor subsp. tricolor Barbara Ertter 2000-3-30 16911 Contra Costa North side of Mount Diablo, Deer Flat at head of Mitchell Canyon. Comment
  UC23867  Gilia tricolor subsp. tricolor McLean March 1875 Contra Costa Concord Comment
  UC691589  Githopsis diffusa subsp. robusta Mary L. Bowerman 1931-5-16 851 Contra Costa Mount Diablo Comment
  SEINET10464620  Githopsis specularioides Bowerman 1935-5-18 BOWERMAN 3034 Contra Costa Meridian Peak north of the summit parking area 1067 Comment
  CDA983  Glyceria declinata D. G. Kelch 2002-5-4 2 .01 Contra Costa East Bay; Wildcat Canyon Park. Comment
  CDA27056  Glycyrrhiza lepidota D. G. Kelch, A. G. Murdock 2004-6-6 4 .222 Contra Costa Carquinez Strait Region; Downtown Martinez. Alhambra Creek near bay and railroad station. Comment
  UC2013053  Glycyrrhiza lepidota Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14920 Contra Costa Northwest base of Mount Diablo access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  CDA6041  Gnaphalium luteoalbum D. G. Kelch, A. G. Murdock 2005-5-1 5 .185 Contra Costa Carquinez Strait; Crockett; Edwards Canyon. Comment
  RSA666773  Gnaphalium palustre Barbara Ertter, Brad Olson 1991-9-28 10835 Contra Costa San Pablo Reservoir between Orinda and El Sobrante. 91 Comment
  UC35376 Image available Godetia blasdalei W. C. Blasdale 1893-7-11 Contra Costa Point Isabel Comment
  OBI16393  Grindelia camporum Robert F. Hoover 1969-9-1 11569 Contra Costa Between San Pablo and Pinole Comment
  JEPS75304  Grindelia hirsutula L. R. Heckard 1975-11-2 4212 Contra Costa nw side Brooks Island; Richmond Comment
  UC1042334  Grindelia hirsutula Lewis S. Rose 1952-11-26 52020 Contra Costa Pittsburg 3 Comment
  CAS-BOT-BC305224  Grindelia hirsutula John Thomas Howell 1930-9-28 5495 Contra Costa Liberty School on Marsh Creek Road Comment
  CAS-BOT-BC305241  Grindelia hirsutula John Thomas Howell 1929-9-21 4396 Contra Costa Marsh Creek Road 3.5 miles sw. of Brentwood Comment
  SEINET10724143  Grindelia hirsutula John T. Middleton Middleton s.n. Contra Costa Seaside, Richmond. Comment
  UC117325  Guillenia flavescens T. S. Brandegee May 1892 Contra Costa Antioch Comment
  UC137040  Guillenia flavescens Katharine Brandegee 1907-5-4 Contra Costa between Antioch and Marsh Creek Comment
  UC691154  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
  UC10945  Guillenia lasiophylla W. H. Brewer 1862-4-24 987 Contra Costa Martinez Comment
Read comments
Feb 5 2010
  CAS-BOT-BC304583  Gutierrezia californica Walter Knight 1965-9-7 1172 Contra Costa Overlooking San Joaquin River. Antioch sand dunes Comment
  POM51392  Gutierrezia californica L. R. Abrams 1917-9-13 6728 Contra Costa Patterson Pass. Comment
  UC1005829 Image available Hakea oleifolia N. Floy Bracelin 1946-1-20 2864 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1050012  Hebe speciosa N. Floy Bracelin 1941-8-3 1537 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  CAS-BOT-BC306372  Helenium bigelovii Walter Knight 1979-6-15 3391 Contra Costa Browns Island. Crooked Slough Comment
  CDA6433  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-BC305326  Helianthella castanea John Thomas Howell 1931-5-12 6475 Contra Costa Nortonville Comment
  CAS-BOT-BC305327  Helianthella castanea John Thomas Howell 1931-5-12 6475 Contra Costa Nortonville Comment
  CAS-BOT-BC305328  Helianthella castanea John Thomas Howell 1931-5-12 6475 Contra Costa Nortonville Comment
  CAS-BOT-BC305329  Helianthella castanea L. R. Abrams 1921-5-25 8028 Contra Costa At summit, Mt. Diablo Comment
  JEPS85476  Helianthella castanea Leonora M. Ellis 1990-5-11 Contra Costa w Alamo (Horseman's Canyon and canyon to the w); Tice Valley 228 Comment
  JEPS86722  Helianthella castanea James A. Martin 1991-5-21 Contra Costa 800 ft se Castro Ranch (ca 1 mi n of nw end of San Pablo Dam) 182 Comment
  SEINET11196758 Image available Helianthella castanea D. W. Taylor 2001-3-21 17614 Contra Costa Mount Diablo, Mount Diablo State Park, near Balancing Rock 457 Comment
  UC1819054  Helianthella castanea Barbara Ertter, Chris Thayer 1995-4-25 13995 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Black Hawk Ridge Rd. on north side Black Hawk Ridge. Comment
  UC194922  Helianthella castanea H. M. Hall 1916-5-31 10137 Contra Costa n slope of summit Mt. Diablo 1158 Comment
  UC2031433  Helianthella castanea Barbara Ertter 1991-6-1 10074 Contra Costa Las Trampas Regional Wilderness in hills W of Danville Comment
  UC761942  Helianthella castanea R. F. Hoover 1939-4-13 4014 Contra Costa head (west branch) Markeley Canyon Comment
  CDA31041  Helianthemum scoparium D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .229 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  UC2028316  Helianthemum scoparium Barbara Ertter, Susan D'Alcamo 1998-6-12 16161 Contra Costa Summit Road to top of Mount Diablo. Comment
  CAS-BOT-BC305670  Helianthus gracilentus Mary L. Bowerman 1932-9-24 1592 Contra Costa Mount Diablo. Knoll west of Twin Peaks 457 Comment
  JEPS88686  Helianthus gracilentus Mary L. Bowerman 1932-10-1 1602 Contra Costa Mitchell Canyon Mount Diablo ((1931) burn near stream) Comment
  UC2070510  Helianthus gracilentus Barbara Ertter with Dan Norris 2001-4-8 17587 Contra Costa Lime Ridge Open Space east of Walnut Creek. Comment
  UC1795840  Helianthus tuberosus Barbara Ertter 1995-9-30 14526 Contra Costa North bank of Cerrito Creek at end of Yosemite Avenue in El Cerrito, foot of Albany Hill; stonework bank at edge of overgrown sluggish creek. Comment
  SD71038  Heliotropium amplexicaule Peter Rubtzoff 1967-9-5 5881 Contra Costa University of California campus, Berkeley, on dry hillside at the edge of Haviland Hall parking lot. Comment
  UC1063893  Heliotropium curassavicum H. S. Yates 1934-9-2 4073 Contra Costa 1 mi. n.e. Danville; Mt. Diablo Quad. 450 Comment
  UCD36034  Heliotropium curassavicum var. oculatum Beecher Crampton 1949-7-15 486 Contra Costa Contra Costa County, below original site of Judsonville, head of Lone Tree Valley, along Sand Creek, just before coming to Lee Higgins Empire Ranch. 114 Comment
  CHSC75063  Helminthotheca echioides Roger Thom 1987-5-28 26 Contra Costa 3300 block of Johnson Rd. 0.3 mi from intersection with Reliez Valley Rd. Lafayette. Edge of pasture. 137 Comment
  UCD159356  Helminthotheca echioides D. S. Park 2010-6-22 141 Contra Costa Wildwood canyon. Along trailside. Abundant along length of trail. Also growing out of pavement. 55 Comment
  CAS-BOT-BC305876  Helminthotheca echioides Walter Knight; Irja Knight 1978-8-14 3160 Contra Costa Browns Island Comment
  CAS-BOT-BC306263  Hemizonia congesta subsp. lutescens H. M. Hall 1914-9-13 9877 Contra Costa Easterly shores of San Francisco Bay near San Pablo Comment
  UC1536900  Hemizonia congesta subsp. luzulifolia Gordon H. True Jr. 1937-10-12 838 Contra Costa near Pinole 30 Comment
  UC912566  Hemizonia congesta subsp. luzulifolia Herbert L. Mason 7058 Contra Costa Laundry Farm Oakland Hills Comment
  UC990639  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1909-9-24 Contra Costa San Ramon Comment
  CAS-BOT-BC309759  Hemizonia congesta subsp. luzulifolia A. A. Heller 1922-7-22 13722 Contra Costa Along San Pablo Avenue near Richmond Comment
  CDA6977  Hemizonia corymbosa D. G. Kelch, A. G. Murdock 2004-5-7 4 .179 Contra Costa Carquinez Strait; Canada del Cierbo. Comment
  RSA181368  Hemizonia fitchii James I. McMurphy 1908-10-18 s.n. Contra Costa Antioch. Comment
  RSA81495  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1909-9-24 s.n. Contra Costa 1 mile N of San Ramon. Comment
  SEINET7883353 Image available Hemizonia obconica L. S. Rose 1941-1 41466 Contra Costa 6 mi W of Byron, on Marsh Creek Rd Comment
  CDA31366  Hemizonia pungens D. G. Kelch 2010-10-29 10 .441 Contra Costa Carquinez Strait; Rankin park just west of Martinez adjacent to parking lot. Comment
  CHSC21758  Heracleum lanatum Carol Getzinger 1964-4-26 52 Contra Costa Arlington Boulevard at Cutting Boulevard. 30 Comment
  JEPS111598  Heracleum lanatum A. G. Murdock 2004-4-30 260 Contra Costa Vaca Canyon 165 Comment
  UC692315  Heracleum lanatum Mary L. Bowerman 1931-4-18 720 Contra Costa Mt. Diablo, Sycamore Canyon 335 Comment
  UCD127539  Heracleum maximum R. Tofsrud 1948-1 s.n. Contra Costa Exact location unknonw. Comment
  UC1949316  Hesperevax sparsiflora Barbara Ertter 1991-5-5 9784 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, along spur road from Black Diamond Trail on ridge SE of Coal Canyon Comment
  JEPS12781  Hesperevax sparsiflora var. sparsiflora Rimo Bacigalupi with G. T. Robbins 1955-5-4 4974 Contra Costa pasture near summit Kirker Pass (along old road (not summit of new freeway bypass)) 274 Comment
  UC697201  Hesperevax sparsiflora var. sparsiflora Mary L. Bowerman 1933-4-15 1850 Contra Costa canyon s of Arroyo del Cerro; Mount Diablo Comment
  RSA445902  Hesperocnide tenella Joseph A. Ewan 1936-7-5 9731 Contra Costa Wildcat Creek. Comment
  CAS-BOT-BC167435  Hesperolinon breweri Mrs. Brandegee 1884-5-1 s.n. Contra Costa Near Antioch Comment
  RSA135385  Hesperolinon breweri Volney Rattan 1886-06 s.n. Contra Costa Mount Diablo Comment
  SJSU764  Hesperolinon californicum D. Bernsdorf 1942-5-30 Contra Costa Mt Diablo Comment
  UC697193  Hesperolinon californicum Mary L. Bowerman 1935-6-28 3160 Contra Costa Inner Black Hills just w meridian; Mount Diablo 457 Comment
  CAS-BOT-BC175984  Hesperolinon californicum Mary L. Bowerman 1933-6-14 2279 Contra Costa Inner Black Hills west of 1970. Mount Diablo Comment
  POM139233  Hesperolinon micranthum A. D. E. Elmer 1903-07 4545 Contra Costa Mount Diablo Comment
  UC725833  Hesperomecon linearis A. A. Heller 1908-4-16 8890 Contra Costa East of Antioch 22 Comment
  CAS-BOT-BC422500  Hesperomecon linearis Walter Knight; Irja Knight 1977-6-13 s.n. Contra Costa Antioch sand dunes, Little Corral site, Wilber Avenue. Comment
  JEPS112086  Heteromeles arbutifolia D. G. Kelch 2004-3-13 04 .38 Contra Costa Vaca Canyon. Alhambra Valley Road 165 Comment
Read comments
Sep 3 2013
  UC581755  Heterotheca grandiflora Joseph P. Tracy 1932-9-10 10783 Contra Costa on Franklin Canyon Rd e Pinole; Rodeo Creek 91 Comment
  UC727697  Heterotheca grandiflora Milo S. Baker 1946-9-3 11575 Contra Costa n of Antioch (delta region ot the Sacramento and San Joaquin Rivers); Sacramento River, San Joaquin River Comment
  UC2027745  Heterotheca grandiflora Barbara Ertter 1997-1-5 15435 Contra Costa Ygnacio Valley Road crossing Lime Ridge on northwest side of Mount Diablo. Comment
  UC87407  Heterotheca sessiliflora subsp. echioides Mrs. K. Brandegee 1883-7-1 Contra Costa Antioch Comment
  UC1034868  Hibiscus lasiocarpos Ira L. Wiggins 1954-9-5 13121 Contra Costa levee along Bethel Isl. Bethel Isl. Comment
  CDA15278  Hirschfeldia incana G. F. Hrusa, D. Crowe, R. York 1998-7-17 14715 Contra Costa Sacramento Delta; E end of Dow Chemical property at Pittsburg. Comment
  CDA7976  Holocarpha heermannii D. G. Kelch, A. G. Murdock 2003-8-13 3 .129 Contra Costa Carquinez Strait Region; Pig Sale Comment
  UC691479  Holocarpha heermannii Mary L. Bowerman 1930-7-20 409 Contra Costa Silver Spring Comment
  CAS-BOT-BC325835  Holocarpha heermannii David D. Keck 1933-11-2 2624 Contra Costa 5 miles SE of Clayton on Marsh Creek Road just opposite Mt. Diablo Comment
  CAS-BOT-BC325841  Holocarpha heermannii L. R. Abrams 1910-10-8 4337 Contra Costa Green Valley, Mt. Diablo 304 Comment
  POM299470  Holocarpha heermannii L. S. Rose 1941-10-13 41465 Contra Costa 1 miles E of Walnut Creek. 50 Comment
  POM360677  Holocarpha heermannii Hattie Beuton 1917-09 3287 Contra Costa Mt. Diablo. Comment
  UC2029014  Holocarpha heermannii Barbara Ertter 1999-8-21 16792 Contra Costa Deer Flat Trail south of Murchio Gap, NW side of Mount Diablo. Comment
  CAS-BOT-BC320226  Holocarpha macradenia David J. Powers 1974-10-6 1001 Contra Costa 100-400 feet east of highway 80, and 100-300 yards south of Appian Way, Pinole Comment
  SJSU7097  Holocarpha macradenia D. J. Powers 1974-10-6 1001 A Contra Costa 100-300' E of Interstate Hwy 80 & 100-300 yards S of Appian Way, Pinole Comment
  CAS-BOT-BC320253  Holocarpha obconica David D. Keck 1933-11-2 2621 Contra Costa Deer Valley, 1/2 mi. S. of road to Brentwood Comment
  SEINET11847624  Holocarpha obconica L. S. Rose 1938-1 38309 Contra Costa Marsh Creek, 8 mi W of Byron 61 Comment
  POM299469  Holocarpha obconica subsp. obconica L. S. Rose 1941-10-16 41466 Contra Costa 6 miles W of Byron, on the Marsh Creek Road. 33 Comment
  CAS-BOT-BC320324  Holocarpha virgata L. S. Rose 1941-10-16 41467 Contra Costa 2 miles west of Byron 33 Comment
  CAS-BOT-BC324611  Holocarpha virgata David D. Keck 1933-11-2 2620 Contra Costa Horse Valley between Lone Tree Way adn Marsh Creek Road, 6 miles from Antioch Comment
  UC1069564  Holocarpha virgata subsp. virgata G. T. Nordstrom 1937-10-28 1407 Contra Costa 1.6 mi nne Somersville; Mt. Diablo Quad. 188 Comment
  OBI16037  Holocarpha virgata subsp. virgata Robert F. Hoover 1965-9-24 9648 Contra Costa W of Byron, E of Kellogg Crk Comment
  RSA449755  Holodiscus discolor Bonnie C. Templeton 1962-6-10 s.n. Contra Costa Mt Diablo. Comment
  UC1606308  Hordeum brachyantherum subsp. brachyantherum Barbara Ertter, Chris Thayer 1993-5-7 11689 Contra Costa on Wildcat Canyon Road Hopkins Spring 1/2 mi se Inspiration Point (East Bay Municipal Utilities District land e of Tilden Park); Hopkins Spring, East Bay Municipal Utilities District land 304 Comment
  UC756652  Hordeum brachyantherum subsp. brachyantherum G. L. Stebbins Jr. 1946-6-9 3654 Contra Costa 2 mi E of El Cerrito (near Mira Vista Country Club) Comment
  UC1132529  Hordeum marinum subsp. gussoneanum C. M. Belshaw 1936-5-7 2049 Contra Costa 2 mi s Danville; Mt. Diablo Quad. Comment
  UC55038  Hordeum marinum subsp. gussoneanum Jos. Burtt Davy 1900-6-7 6657 Contra Costa near Pacheco Comment
  UC691196  Hordeum marinum subsp. gussoneanum Mary L. Bowerman 1933-5-11 2086 Contra Costa Inner Black Hills w of saddle , Inner Black Hills w of saddle (Mount Diablo) Comment
  UCD85893  Hordeum marinum subsp. gussoneanum L. S. Smith 1916-5-10 s.n. Contra Costa San Pablo. Grand View Terrace. Comment
  POM300591  Hordeum marinum subsp. gussoneanum Mary L. Bowerman 1931-5-13 846 Contra Costa Pine Canyon floor slightly more than a mile above the sulphur spring Comment
  UC691183  Hordeum murinum subsp. glaucum Mary L. Bowerman 1933-5-25 2188 Contra Costa w end s face Oyster Ridge (Mount Diablo); , w end s face Oyster Ridge 396 Comment
  SD234021  Hordeum murinum subsp. leporinum Virginia Pinkus Ryder 1964-4-12 142 Contra Costa Mt. Diablo, Walnut Creek. 244 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
  UC521670  Horkelia californica subsp. dissita Joseph Andorfer Ewan 1933-10-15 8023 Contra Costa Above Indian Ceremonial Spr.; Mt. Diablo Comment
  UC2027724  Horkelia californica var. frondosa Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15510 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  CAS-BOT-BC532052  Horkelia californica var. frondosa Joseph Andorfer Ewan 1934-5-20 8926 Contra Costa Russelmann Park, n. side Mt. Diablo Comment
  CAS-BOT-BC6224  Horkelia frondosa Edward Lee Greene 1889-5-1 s.n. Contra Costa Martinez Comment
  UC691695  Hydrophyllum occidentale Mary L. Bowerman 1931-4-25 770 Contra Costa Mount Diablo summit; Mount Diablo Comment
  UC691697  Hydrophyllum occidentale Mary L. Bowerman 1930-6-10 311 Contra Costa Mount Diablo summit; Mount Diablo Comment
  JEPS75561  Hypochaeris glabra P. F. York 1974-4-19 136 Contra Costa 1.7 km s of Bear Creek Rd Hampton Road; Hampton Road Natural Reserve. Briones Reservoir 170 Comment
  UC691450  Hypochaeris glabra Mary L. Bowerman 1933-5-11 2076 Contra Costa Mount Diablo Comment
  UC691452  Hypochaeris glabra Mary L. Bowerman 1931-4-11 691 Contra Costa Pine Canyon 121 Comment
  SEINET3875275  Iris douglasiana Kaye H. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4959 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough. SE portion of Bethel Slough.; 0 610 Comment
  UC2029193  Iris pseudacorus Barbara Ertter 2000-7-16 17381 Contra Costa Diablo Foothills Regional Park, riparian strip along Pine Creek between Castle Rock Regional Recreation Area Comment
  RSA666475  Isolepis cernua Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10713 Contra Costa Browns Island N of Pittsburg near confluence of Sacramento and San Joaquin rivers opposite Pittsburg Marina. Comment
  CAS-BOT-BC324755  Iva axillaris James McMurphy 1909-5-20 s.n. Contra Costa Antioch Comment
  JEPS111671  Iva axillaris D. G. Kelch 2003-3-28 03 .84 Contra Costa Rodeo - Lone Tree Point 2 Comment
  UC1949201  Jaumea carnosa Barbara Ertter with Elizabeth Neese 1988-10-15 7975 Contra Costa W of I-580 in El Cerrito, W side along Rydin Road N of Central Avenue Comment
  CAS-BOT-BC102304  Juglans hindsii Lewis S. Rose 1936-4-24 36140 Contra Costa Marsh Creek, 5 mi. E. of Clayton 60 Comment
  JEPS31657  Juglans hindsii C. Ritchie Bell 1951-5-11 Contra Costa 1 1/4 mi ne of St. Mary's College (Las Trampas Creek); Las Trampas Creek 167 Comment
  UCD110262  Juglans hindsii Rimo Bacigalupi 1951-4-3 3253 Contra Costa Along Trampas Creek, 1 1/4 mi. n.e. of St. Mary's College. 167 Comment
  UC691987  Juncus ambiguus Mary L. Bowerman 1933-4-22 1885 Contra Costa nw end of Shell Ridge (s of highway (Heather Farm), Mount Diablo); Mount Diablo, Shell Ridge Comment
  SEINET11263178  Juncus articulatus Barbara Ertter 1996-9-19 15300 Contra Costa Antioch Marina, edge of bay in Dow Marshlands.; 0 Comment
  JEPS112446  Juncus balticus D. G. Kelch 2003-8-13 03 .108 Contra Costa Martinez Marsh 0 Comment
  UC2028966  Juncus bufonius var. congestus Barbara Ertter with Brad Olson et al. 2000-6-2 17305 Contra Costa Brushy Peak Regional Preserve NE of Livermore, at south base of Brushy Peak. Comment
  CDA9521  Juncus effusus D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .25 Contra Costa CA Delta; Along the old San Joaquin River Channel, S of Clifton Court Forebay and SE of Byron. 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
  POM300635  Juncus mexicanus Mary L. Bowerman 1933-9-15 2443 Contra Costa Mount Diablo; Hunt Spring. 762 Comment
  UC1795655  Juncus occidentalis Barbara Ertter, Gary Schoolcraft, Tony Morosco 1996-4-6 14566 Contra Costa West end Oyster Point Rd in Mt Diablo State Park, moist meadow just east of junction. Comment
  UC2028530  Juncus occidentalis Barbara Ertter 1998-1-17 15898 Contra Costa Lime Ridge Open Space at NW foot of Mount Diablo. Comment
  UC2028546  Juncus occidentalis Barbara Ertter 1998-4-4 15950 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, grasslands along creek south of Indian Valley School. Comment
  JEPS99595  Juncus patens Mary Bowerman 1993-10-22 Contra Costa Mount Diablo, Pine Pond floodplain. Comment
  HSC14067  Juncus phaeocephalus Leo Koch 1940-6-5 1004 Contra Costa Near highway, 2 mi. S of San Rafael ferry dock Comment
  JEPS102917  Juncus phaeocephalus var. paniculatus Barbara Ertter 1998-5-3 16061 Contra Costa wet meadow below Stage Road SE of Turtle Rock Ponds; Mount Diablo 304 Comment
  UC2028371  Juncus phaeocephalus var. paniculatus Barbara Ertter 1998-6-20 16236 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Alkali Pond at Wiget Lane entrance, Comment
  UC971685  Juncus phaeocephalus var. phaeocephalus Leo Koch 1940-6-5 1004 b Contra Costa 2 mi s San Rafael ferry dock (near highway) Comment
  JEPS112452  Juncus tenuis D. G. Kelch 2005-4-15 05 .134 Contra Costa Rodeo Creek East-West canyon feeding into Rodeo Creek 120 Comment
  UC691979  Juncus xiphioides Mary L. Bowerman 1933-6-21 2337 Contra Costa Donner Canyon Mount Diablo 335 Comment
  POM300638  Juncus xiphioides Mary L. Bowerman 1931-5-15 865 Contra Costa Lower Silver Spring. Comment
  UC2670  Juncus xiphioides W. H. Brewer 1861-9-25 838 Contra Costa halfway up Monte Diablo from Mission San Jose; Mount Diablo Comment
Read comments
Jan 15 2012
  RSA352511  Juniperus californica Mark Morris 1929-03 s.n. Contra Costa Mt. Diablo. Comment
  UC692110  Juniperus californica Mary L. Bowerman 1932-10-9 1629 Contra Costa ridge on ne side North Peak ((above Gabriel-Hinks')); Mount Diablo 685 Comment
  SD243323  Kochia scoparia C. Thayer, Erin McDermott 2006-8-23 82306 a Contra Costa Antioch, northwest corner of Deer Valley Road and Lone Tree Way. Also noted near front of Prewett Family Water Park, 0.4 miles east near Aqueduct right of way. (CCCDA mostly eradicated both colonies in September). 45 Comment
  UC691244  Koeleria macrantha Mary L. Bowerman 1935-5-16 2992 Contra Costa Russelman Park Mount Diablo (just s of the n boundary of section 25 (e of gate)); , Russelman Park Comment
  UC692414  Koeleria macrantha Mary L. Bowerman 1935-4-17 2841 Contra Costa West [= North Rd.] road 2 mi from entrance Mount Diablo; , West raod 2 mi from entrance 243 Comment
  UCD85733  Koeleria macrantha Beecher Crampton 1956-5-14 3394 Contra Costa 3.7 miles southeast of Clayton, on Marsh Creek Road. Comment
  UC1050499  Kolkwitzia amabilis N. Floy Bracelin 1941-4-27 1227 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC340541  Lactuca serriola John Thomas Howell; Gordon H. True 1972-7-29 s.n. Contra Costa On Byron Hot Springs Road southeast of Byron Comment
  UCR66430  Lactuca virosa J. T. Howell 1943-8-22 19310 Contra Costa San Francisco Bay Region/Coast Range, near head of San Leandro Creek Canyon 244 Comment
Read comments
Jul 7 2009
  UC2029078  Lactuca virosa Barbara Ertter 2000-7-16 17402 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park. Comment
  UC697161  Lagophylla ramosissima Mary L. Bowerman 1930-6-5 262 Contra Costa North Road 5.8 mi from North Gate; Mount Diablo 457 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
  UC579839  Lamium amplexicaule Annetta Carter 1937-4-4 1230 Contra Costa about 10 mi e Pinole; Vaca Canyon Comment
  UC14012  Lastarriaea coriacea Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  CHSC23361  Lasthenia californica Willis Ball 1975-4-19 523 Contra Costa Contra Loma Regional Park. In area #1. Ca. 150 yds sw of main parking lot at the s end of the lake. 38 Comment
  JEPS25123  Lasthenia californica subsp. californica G. Thomas Robbins 1959-4-18 3989 Contra Costa hillslopes above and about 1/2 mi e Pt. San Pablo; Richmond 30 Comment
  CAS-BOT-BC324481  Lasthenia ferrisiae Alice Eastwood 1914-3-14 3761 Contra Costa Byron Springs 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
  UC1363770  Lasthenia ferrisiae Robert Ornduff 1958-4-23 4945 Contra Costa 0.9 mi e junction of Bixler Road and Highway 4 (n of Hwy 4, n of Byron) Comment
  UC895381  Lasthenia ferrisiae Alice Eastwood 1914-3-14 3761 Contra Costa Byron Springs Comment
  CAS-BOT-BC353330  Lasthenia fremontii R. F. Hoover 1967-4-28 10512 Contra Costa Byron Hot Springs. Comment
  UC1184085  Lasthenia fremontii Ren-Hwa Shan 1947-3-23 2013 Contra Costa 3.3 mi s Byron 7 Comment
  UC90074  Lasthenia fremontii E. L. Greene 1884-4-1 Contra Costa Byron Springs Comment
  CAS-BOT-BC353332  Lasthenia fremontii Peter H. Raven; H. L. Mason; et al. 1957-4-4 10587 Contra Costa Vernal flats 3 miles S of Byron. Comment
  POM181483  Lasthenia fremontii I. L. Wiggins 1930-4-17 4579 Contra Costa 1/4 mi. S. of Byron Comment
  RSA523884  Lasthenia fremontii Barbara Ertter, Jim Jokerst, D. Magney 1989-4-5 8136 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  CAS-BOT-BC352925  Lasthenia glaberrima A. D. E. Elmer 1903-5-1 4321 Contra Costa Walnut Creek Comment
  JEPS116852  Lasthenia glaberrima David Gowen 2007-4-16 678 Contra Costa Briones Regional Park in vernal depression northeast of Sindicich Lagoon. Comment
  UCD32417  Lasthenia glaberrima Beecher Crampton 1950-5-10 573 Contra Costa Contra Costa County, 1 mile north of Richmond, along Santa Fe tracts. 10 Comment
  JEPS17268  Lasthenia glabrata subsp. glabrata R. F. Hoover 1936-4-16 974 Contra Costa e slope Bald Peak Comment
  POM301015  Lasthenia microglossa Mary L. Bowerman 1932-3-27 1141 Contra Costa Mitchell Rock. Comment
  CAS-BOT-BC366304  Lasthenia minor Alice Eastwood 1914-3-14 3830 Contra Costa Byron Springs Comment
  JEPS81844  Lasthenia platycarpha Rimo Bacigalupi with Paul C. Hutchinson and John Weiler 1959-3-10 6967 Contra Costa 1 mi se Byron (in fields e of Byron road) 6 Comment
  RSA138191  Lathyrus jepsonii subsp. californicus Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley. Comment
  UC2027834  Lathyrus jepsonii var. californicus Barbara Ertter 2001-5-10 17635 Contra Costa North flank of Mount Diablo, SE of Mitchell Canyon trailhead, on traversing road to Mitchell Rock Trail. Comment
  CAS-BOT-BC205013  Lathyrus jepsonii var. jepsonii Walter Knight; Brian Atwater; Joanne Dean; Rolf Bensler; Bryan Mortensen 1979-4-13 3362 Contra Costa Crooked Slough, Browns Island Comment
  JEPS55365  Lathyrus vestitus var. vestitus H. L. Mason 1931-4-4 Contra Costa se of Mt. Diablo; Upper Marsh Creek Comment
  JEPS55376  Lathyrus vestitus var. vestitus W. L. Jepson 1925-4-26 10692 Contra Costa Black Hills Mt. Diablo Comment
  UC85314  Lathyrus vestitus var. vestitus C. F. Baker 1903-4-28 2944 Contra Costa Mitchell Canyon Mt. Diablo Comment
  JEPS55368  Lathyrus vestitus var. vestitus W. L. Jepson 1891-6-9 13633 Contra Costa e side Berkeley Hills (at the Fish Ranch) Comment
  UC30593  Layia chrysanthemoides Harley P. Chandler 1901-3-22 879 Contra Costa Rodeo Canyon San Francisco Bay Region, Rodeo Canyon Comment
  UC62893  Layia chrysanthemoides H. M. Hall 1901-3-22 1688 Contra Costa Rodeo Creek Region of San Francisco Bay, Rodeo Creek Comment
  POM181462  Layia chrysanthemoides I. L. Wiggins 1930-4-17 4572 Contra Costa 1/4 mi. S. of 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
  UC89223  Layia gaillardioides M. K. Curran Contra Costa Mt. Diablo Comment
  CAS-BOT-BC321747  Layia gaillardioides M. K. Curran 1884-1-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC321748  Layia gaillardioides John Thomas Howell 1941-4-6 16176 Contra Costa Deer Flat, Mt. Diablo Comment
  CAS-BOT-BC321749  Layia gaillardioides John Thomas Howell 1941-4-6 16176 Contra Costa Deer Flat, Mt. Diablo Comment
  CAS-BOT-BC321080  Layia glandulosa C. F. Baker 1903-4-27 2939 Contra Costa Antioch Comment
  CAS-BOT-BC321082  Layia glandulosa C. F. Baker 1909-5-20 s.n. Contra Costa Antioch Comment
  POM361662  Layia glandulosa H. de Forest 1930-4-6 s.n. Contra Costa SE of Mortoville, Small 'coal mine' ravine. Comment
  UC202677  Layia glandulosa unknown 1889-4-15 Contra Costa Comment
  UC761879  Layia glandulosa R. F. Hoover 1937-5-14 2115 Contra Costa Comment
  RSA81648  Layia glandulosa subsp. glandulosa James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  RSA102175  Layia heterotricha M. K. Curran 1886-05 s.n. Contra Costa Near Antioch. Comment
  UC1606413  Layia hieracioides Barbara Ertter, Chris Thayer 1993-5-7 11710 Contra Costa ca 1/2 mi n Volmer (=Bald) Peak (in East Bay Municipal Utilities District land e of Tilden Park, just below ridge on ne-facing slope) 457 Comment
  CAS-BOT-BC327244  Layia hieracioides K. Curran 1883-5-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC327250  Layia hieracioides Mary L. Bowerman 1933-5-3 1969 Contra Costa Mt. Diablo, Due south of summit 2400'; commoner toward saddle (2400'). 731 Comment
  CDA33885  Layia platyglossa D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .104 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  SEINET10759869  Layia platyglossa John T. Middleton 1936-4-18 Middleton 143 Contra Costa Deer Valley, Ca. Comment
  SD38982  Layia platyglossa subsp. campestris Edith A. Purer 1933-4-25 3661 Contra Costa Near Newark. Comment
  CAS-BOT-BC534639  Lemna minuta Ira L. Wiggins 1930-4-18 4607 Contra Costa Jersey Island Comment
  CDA43402  Lepidium acutidens Michael Pitcairn & Dean Kelch 2015-3-6 s.n. Contra Costa South end of the Byron Airport. Comment
  UCD77805  Lepidium acutidens Robert E. Preston 1997-3-8 1017 Contra Costa Black Diamond Mines Regional Park, along Stewartsville Trail 137 Comment
  UC2070552  Lepidium coronopus Barbara Ertter 2002-5-11 17839 Contra Costa Southwest base of Mount Diablo, base of Emmons Canyon fire road. Comment
  CDA24905  Lepidium dictyotum var. acutidens Jim Jokerst 1989-3-29 3074 Contra Costa Byron Hot Springs area northeast of Livermore, adjacent to pipeline on terrace south of ephemeral creek. 0 Comment
  CHSC67910  Lepidium dictyotum var. acutidens James D. Jokerst 1989-3-29 3068 Contra Costa 0.25 mi S of Byron Hot Springs NE of Livermore. Comment
  JEPS73691  Lepidium dictyotum var. acutidens L. R. Heckard with Wm. Hirano and Ted Niehaus 1968-3-3 1760 Contra Costa about 3 mi se Byron (at junction of Holey Road, along Byron-Bethany road) 7 Comment
  CDA24907  Lepidium dictyotum var. acutidens Jim Jokerst 1989-3-29 3069 Contra Costa 0.25 mile south of Byron Hot Springs, northeast of Livermore. 0 Comment
  CHSC69637  Lepidium dictyotum var. dictyotum James D. Jokerst 1989-3-28 3051 B Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  CAS-BOT-BC89054  Lepidium didymum Ira L. Wiggins 1930-4-18 4595 Contra Costa East end of Jersey Island. Comment
  UC1607701  Lepidium latifolium Barbara Ertter 1991-5-12 9810 Contra Costa sw corner El Cerrito (Point Isabel Regional Shoreline, n of park); San Francisco Bay, Point Isabel Regional Shoreline Comment
  JEPS17889  Lepidium latipes Rimo Bacigalupi with G. T. Robbins 1956-3-26 5527 Contra Costa Deer Valley, along Deer Valley Road Deer Valley 76 Comment
  UC1179007  Lepidium latipes Francia Chisaki, Rimo C. Bacigalupi, and G. Thomas Robbins 1959-4-14 1320 Contra Costa 8 mi s Antioch (on Deer Valley Road, 0.2 mi s of junction with Briones Valley Road) Comment
  UC691078  Lepidium latipes Mary L. Bowerman 1933-4-15 1846 Contra Costa canyon s Arroyo del Cerro; Mount Diablo Comment
  CAS-BOT-BC89891  Lepidium nitidum Alice Eastwood 1914-3-14 s.n. Contra Costa Byron Springs. Comment
  UC10675  Lepidium nitidum F. T. Bioletti 1892-1 Contra Costa Byron Comment
  UC1157922  Lepidium nitidum Olive Dyer 1937-3-6 214 Contra Costa upper end Wildcat Canyon Comment
  UC1362354  Lepidium nitidum Olive Dyer 1936-3-25 214 Contra Costa e side Wildcat Canyon Comment
  UC1543052  Lepidium nitidum Donald G. Nelson 1937-3-30 472 Contra Costa s of Byron (on road to Tracy; along railroad tracks paralleling the highway) Comment
  UC765053  Lepidium nitidum R. F. Hoover 1938-2-27 2786 Contra Costa Danville Comment
  RSA34732  Lepidium nitidum R. C. Rollins 1946-3-25 3044 Contra Costa Western slope of Mount Diablo. Comment
  UC2028050  Lepidium nitidum Barbara Ertter 1998-2-15 15911 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, roadside near Indian Creek. Comment
  JEPS111855  Lepidium nitidum var. nitidum D. G. Kelch 2003-2-7 03 .37 Contra Costa Franklin Canyon 115 Comment
  SEINET11263174  Lepidium oxycarpum Barbara Ertter, Dale Sanders; Dan Norris 1994-3-26 12337 Contra Costa Peyton Hill E of I-680, E of Martinez. South of Waterfront Road, west foot of hill near edge of marsh.; 0 Comment
  JEPS25136  Lepidium strictum G. Thomas Robbins 1959-4-26 4006 Contra Costa about 1 mi ne Giant (and about 0.25 mi n of San Pablo Oil Tank Farm) 7 Comment
  UCD115836  Lepidium strictum G. Thomas Robbins 1959-4-26 4006 Contra Costa About 1 mile northeast of Giant and about one-fourth mile north of San Pablo Oil Tank Farm. 7 Comment
  UCD64056  Leptochloa fusca subsp. uninervia Chandler Jensen 1957-11-7 Contra Costa Vasco road, about 5 mi. south of Brentwood. Comment
  UC2028986  Leptosiphon ciliatus Barbara Ertter 2000-5-14 17009 Contra Costa Donner Canyon on north side of Mount Diablo, SW end of Falls Trail between Middle Trail and Donner Creek crossing. Comment
  CAS-BOT-BC324115  Lessingia glandulifera var. glandulifera Peter Rubtzoff 1951-10-7 821 Contra Costa Along lower San Joaquin River, east of Antioch Comment
  UC761928  Lessingia pectinata var. tenuipes R. F. Hoover 1940-11-23 4696 Contra Costa 2 mi w Byron Comment
  JEPS22090  Leymus X multiflorus G. Thomas Robbins 1958-7-19 3902 Contra Costa about 1/2 mi e Pt. San Pablo (meadow overlooking San Pablo Bay); Richmond Comment
  CDA32469  Leymus condensatus A. A. Beetle 1941-6-24 1751 Contra Costa Point Richmond on San Francisco Bay. 0 Comment
  UCD87711  Leymus triticoides Nougart 1916-12-1 s.n. Contra Costa Walnut Creek. Comment
  CAS-BOT-BC272214  Leymus triticoides R. E. Frenkel 1964-9-19 848 Contra Costa On Morgan Territore Road, 0.2 mile south of summit 637 Comment
  SEINET10595891  Leymus triticoides Frank W. Gould 1941-5-8 Gould 1290 Contra Costa Wastelands along Bay at Winehaven (near Richmond). Comment
  CAS-BOT-BC211110  Lilaeopsis masonii W. Knight; I. Knight 1977-5-22 s.n. Contra Costa Antioch Dunes Comment
  UC1178018  Lilium pardalinum Herbert L. Mason 1955-7-14 14633 Contra Costa 0.5 mi e Antioch Bridge 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
  UCD116496  Limnanthes douglasii William B. Davis 1960-3-26 3 Contra Costa South Scenic Boulevard, Mt. Diablo. 182 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
  UC971818  Limnanthes douglasii subsp. rosea Charles T. Mason Jr. 1948-3-27 1134 Contra Costa 0.1 mi s Byron Hot Springs road (along Byron-Bethany road) Comment
  JEPS20265  Limonium californicum W. L. Jepson 1922-7-9 9730 Contra Costa Richmond Comment
  UC1736382  Limosella acaulis Dean W. Taylor 1992-4-16 12393 Contra Costa S of Byron Hot Springs, in swale draining on E margin of NE1/4 SE1/4 Section 34 45 Comment
  UC1602386  Linanthus ambiguus Mary L. Bowerman 1934-3-18 2481 Contra Costa w of Russelman Park (on the edge of Donner Canyon); Mount Diablo, Donner Canyon 381 Comment
  JEPS99519  Linanthus androsaceus Mary Bowerman 1977-5-29 Contra Costa Mount Diablo. Russellmann Park. Comment
  JEPS58248  Linanthus bicolor Mary L. Bowerman 1931-3-29 625 Contra Costa n side, 500 ft from top Cave Point; Mount Diablo Comment
  UC691641  Linanthus ciliatus Mary L. Bowerman 1935-5-22 3042 Contra Costa Eagle Point ridge Mount Diablo (canyon at the n end which heads into saddle w of Twin Peaks) 304 Comment
  UC1047918  Linanthus liniflorus Kay H. Beach 1941-4-30 1083 Contra Costa near Byron Hot Springs Station Comment
  JEPS123317  Linanthus parviflorus David Gowen with Chris Thayer 2010-4-30 1090 Contra Costa North of Briones Reservoir. Rocky area on hill above Oursan Trail just west of its junction with Hampton Trail. Comment
  JEPS116915  Linanthus pygmaeus subsp. continentalis David Gowen 2009-4-4 981 Contra Costa Hard packed sandy area just south of Las Trampas Ridge Trail and about 1/4 mile west of junction with Del Amigo Trail. Comment
  UC1818935  Linaria maroccana Barbara Ertter, Mary Bowerman et al. 1995-5-7 14028 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, along road thru annual grassland with scattered blue oak south of Marsh Cr. Rd summit. 304 Comment
  HSC20215  Lithophragma affine Greg Bos 1963-3-9 36 Contra Costa Albany Hill 9 Comment
  SEINET6032167  Lithophragma affine H. E. Hodge 1956-4-7 23 Contra Costa 2 miles north of Orinda 61 Comment
  JEPS105700  Lithophragma bolanderi David Gowen 2004-3-28 21 Contra Costa Black Diamond Mines Regional Preserve. River View Loop trail southeast of the Arata Overlook trail junction. Comment
  UC2028180  Lithophragma bolanderi Barbara Ertter 1998-5-3 16038 Contra Costa SW fork of Pine Creek between Pine Ridge and Wall Point Ridge, southwest base of Mount Diablo. Comment
  UC1088544  Lithophragma heterophyllum John H. Weiler 1959-1 5944 Contra Costa along Bear Creek Road Comment
  UC692447  Lithophragma heterophyllum Mary L. Bowerman 1931-3-21 585 Contra Costa Sycamore Canyon 335 Comment
  UC2031413  Lobularia maritima Barbara Ertter with David Gowen 2006-4-14 18666 Contra Costa Lime Ridge Open Space (City of Concord) at NW foot of Mt Diablo, grassland along Ohlone Trail SE of Ygnacio Valley Road Comment
  CAS-BOT-BC342121  Logfia filaginoides Alice Eastwood 1923-5-4 11724 Contra Costa Mt Diablo Comment
  UC912297  Logfia filaginoides Herbert L. Mason 1928-4-26 4385 Contra Costa Berkeley-Oakland Hills Comment
  UC1948941  Logfia gallica William J. Ferlatte, L. Maynard Moe 1970-4-27 1255 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC606726  Logfia gallica Edward Lee 1936-4-19 1991 Contra Costa summit Red Rock Island; San Francisco Bay, Red Rock Island 54 Comment
  CAS-BOT-BC342346  Logfia gallica H. L. Mason 1928-4-26 4386 Contra Costa Berkeley-Oakland Hills Comment
  CDA2238  Lolium multiflorum D. G. Kelch, A. G. Murdock 2004-4-11 4 .069 Contra Costa Carquinez Strait; Bull Valley Prairie. EBRPD. Between Crockett and Pt. Costa. Comment
  JEPS75535  Lolium multiflorum P. F. Yorks 1976-5-31 508 Contra Costa 1.3 to 1.9 km s of Bear Creek Road on Hampton Road in Hampton Road Natural Reserve (n of Briones Reservoir); , n of Briones Reservoir 180 Comment
  JEPS97558  Lolium multiflorum R. D. Stone 1980-7-13 278 Contra Costa 'Huckleberry Trail Oakland Hills, near Alameda-Contra Costa county line (NE of intersection of Skyline Blvd. and Snake Rd) Comment
  CAS-BOT-BC283394  Lolium multiflorum Mary L. Bowerman 1938-5-25 3630 Contra Costa Mount Diablo. Arroyo del Cerro, by North Rd 109 Comment
  CAS-BOT-BC269051  Lolium perenne Mary L. Bowerman 1935-5-3 2967 Contra Costa Mount Diablo. Sloan Road 487 Comment
  RSA641386  Lolium perenne subsp. multiflorum Terry J. O'Brien 1999-07 s.n. Contra Costa San Francisco Bay Area. eastern Richmond along boundary with EL Cerrito. Mira Vista Park adjacent Mira Vista School 91 Comment
  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
  CAS-BOT-BC271056  Lolium temulentum Mary L. Bowerman 1933-5-17 2096 Contra Costa Branch of Curry Canyon due south of Olafsons barn, Mount Diablo Comment
  CAS-BOT-BC271057  Lolium temulentum Mary L. Bowerman 1933-5-17 2096 Contra Costa Branch of Curry Canyon due south of Olafsons barn, Mount Diablo Comment
  UC691775  Lomatium californicum Mary L. Bowerman 1931-6-2 914 Contra Costa Mt. Diablo, Gregory Ranch Rd. 518 Comment
  JEPS128781  Lomatium caruifolium Kevin Hintsa 2000-4-6 Contra Costa Mount Diablo State Park, Mitchell Canyon at connector trail between lower section of Black Point Trail and lower White Canyon (on N edge of trail barely W of Black Point Trail's eastern section). Comment
  POM132574  Lomatium caruifolium C. F. Baker 1908-4-27 2800 Contra Costa [Unspecified] Comment
  UC659029  Lomatium caruifolium var. caruifolium Mildred E. Mathias 1937-4-11 1164 Contra Costa 3 mi S of Byron (along highway) Comment
  UC691420  Lomatium dasycarpum subsp. dasycarpum Mary L. Bowerman 1932-2-28 1095 Contra Costa W of Blackberry Spring; Mount Diablo Comment
  UC691422  Lomatium utriculatum Mary L. Bowerman 1935-5-30 3096 Contra Costa between the two ridges which converge at Twin Peaks (Eagle Point ridge) Mount Diablo 350 Comment
  CDA42380  Lonicera hispidula D. G. Kelch 2012-5-27 12 .071 Contra Costa Carquinez Strait Region; Pinole Valley Park. 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
  UC1050013  Lonicera korolkowii N. Floy Bracelin 1941-8-3 2688 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UCD137367  Lonicera subspicata M. Wiesendanger 1925-5-1 1480 Contra Costa San Miguel. Comment
  UC691485  Lonicera subspicata var. denudata Mary L. Bowerman 1931-6-4 922 Contra Costa summit Mount Diablo (on n face) Comment
  UC1051193  Lonicera thibetica N. Floy Bracelin 1944-6-11 2727 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC200900  Lotus R. E. Frenkel 1964-2-5 356 Contra Costa On California Hwy. 21, Market Plaza Center, Alamo 79 Comment
  UC864780  Lotus crassifolius var. crassifolius Lewis S. Rose 1935-5-16 35176 Contra Costa Mt. Diablo Comment
  UC775175  Lotus denticulatus Herbert L. Mason 1945-5-31 Contra Costa nw of St. Mary's College; Cashion Canyon Comment
  UC864815  Lotus humistratus Lewis S. Rose 1941-5-15 41234 Contra Costa Mt. Diablo, w slope Mt. Diablo 396 Comment
  CDA27211  Lotus humistratus G. E. Sorensen 1963-5-24 Contra Costa North Gate Road, Mt. Diablo State Park. 0 Comment
  UC2028272  Lotus micranthus Barbara Ertter 1999-6-12 16705 Contra Costa Black Hawk Ridge Road between Knobcone Point Road and NE fork of Sycamore Creek, South side of 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
  UC1795732  Lotus scoparius var. scoparius Barbara Ertter, Brad Olson 1994-5-7 12761 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  JEPS100070  Lotus wrangelianus G. Smick 2003-3-13 GAS 87 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS18165  Lotus wrangelianus Rimo Bacigalupi with G. T. Robbins 1956-5-11 5639 Contra Costa 1.3 mi e Pinole (between State Hwy 4 (Franklin Canyon Rd) and Santa Fe Ry right-of-way, 0.25 mi e of jct with U.S. Hwy 40) 22 Comment
  JEPS55837  Lotus wrangelianus W. L. Jepson May 22 1891-May 23 1891 13796 Contra Costa Mt. Diablo Comment
  UC1051078  Luculia intermedia N. Floy Bracelin 1944-10-29 2821 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC2029111  Ludwigia peploides subsp. montevidensis Barbara Ertter with Lincoln Constance 1995-6-16 14263 Contra Costa East edge Dow Marsh on west side Antioch Marina, south side San Joaquin River in Delta area, edge of marsh. Comment
  UC178931  Lupinus Katharine Brandegee Contra Costa Walnut Creek Comment
  UCD36021  Lupinus Beecher Crampton 1949-5-29 466 Contra Costa 1 mile north of Richmond, patch along Southern Pacific Railroad. 15 Comment
  UC1594183  Lupinus albifrons Jerry Powell 1992-6-17 1651 Contra Costa Richmond Field Station Comment
  UC750647  Lupinus albifrons Lewis S. Rose 1946-4-1 46023 Contra Costa above Wildcat Creek (Berkeley Hills); , above Wildcat Creek 396 Comment
  CAS-BOT-BC201375  Lupinus albifrons var. albifrons James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  JEPS112355  Lupinus albifrons var. albifrons Dean G. Kelch and Andrew G. Murdock 2004-3-12 04 .019 Contra Costa Pinole Valley, County: Contra Costa; Hillside and canyon above Wright Road. Off of Pinole Valley Road. Contra Coasta County, CA. Comment
  RSA600828  Lupinus albifrons var. collinus Joseph A. Ewan 1934-3-10 8645 Contra Costa San Pablo Ridge: Wildcat Canyon; 2 miles below Orinda road bridge.. . Comment
  UC1076228  Lupinus bicolor Herbert L. Mason 1931-4-5 5821 Contra Costa Antioch sandhills Comment
  UC764122  Lupinus bicolor R. F. Hoover 1938-5-4 3343 Contra Costa peak e Tassajero Creek; peak e of Tassajero Creek Comment
  SEINET10485223  Lupinus densiflorus Frenkel 1964-4-18 FRENKEL 424 Contra Costa 2.1 mi. E of danville on tassajara rd. 130 Comment
  UCD107777  Lupinus formosus L. S. Smith 1916-5-10 s.n. Contra Costa Grand View Terrace - San Pablo. Comment
  UC2050234  Lupinus formosus var. formosus Dean G. Kelch and Andrew G. Murdock 2004-5-28 287 Contra Costa Pinole Peak; County: Contra Costa. Comment
  JEPS112364  Lupinus latifolius var. latifolius Dean G. Kelch and Andrew G. Murdock 2004-4-30 256 Contra Costa Vaca Canyon; County: Contra Costa; On steep south slope along road. Comment
  UC201012  Lupinus microcarpus var. densiflorus Katharine Brandegee 1918-6-16 Contra Costa near Virgorit Powder Works; near Vigorit Powder Works Comment
  UC692275  Lupinus microcarpus var. densiflorus Mary L. Bowerman 1931-4-18 735 Contra Costa Green Valley Mount Diablo (Mount Diablo); , Green Valley Comment
  UCR197907  Lupinus microcarpus var. densiflorus Beecher Crampton 1950-4-22 525 Contra Costa Above site of Judsonville, west of old Empire mine 183 Comment
  UCD108697  Lupinus microcarpus var. densiflorus August Hartman 1960-4-19 15 D Contra Costa North Gate Road, Mt. Diablo. 304 Comment
  JEPS25140  Lupinus microcarpus var. microcarpus G. Thomas Robbins 1959-5-16 4010 Contra Costa just n Pt. Orient, Richmond (western base of Potrero Hills, overlooking San Francisco Bay); overlooking San Francisco Bay, Potrero Hills, n of Pt. Orien Comment
  UC15961  Lupinus microcarpus var. microcarpus J. Burtt Davy April 1895 Contra Costa Antioch Comment
  UC201010  Lupinus microcarpus var. microcarpus Katharine Brandegee June 1918 Contra Costa Richmond Annex; El Dorado St. Comment
  UC33552  Lupinus microcarpus var. microcarpus Chesnut and Drew 1889-4-17 Contra Costa Clayton Comment
  JEPS78983  Lupinus microcarpus var. microcarpus Edward Lee with Annetta Carter 1935-6-13 1430 Contra Costa Panhandle Boulevard south Richmond; , Panhandle Boulevard Comment
  UC1301168  Lupinus nanus Helen K. Sharsmith 1962-4-18 4960 Contra Costa near Canyon; San Francisco Bay Region 152 Comment
  UC2028033  Lupinus nanus Barbara Ertter 1998-4-4 15944 a Contra Costa Shell Ridge Open Space northwest of Mount Diablo, SE of Indian Valley School. Comment
  UCD109246  Lupinus nanus L. S. Smith 1916-5-10 s.n. Contra Costa Grand View Terrace - m. Richmond. Comment
  SEINET10870817  Lupinus nanus subsp. menkerae Frenkel 1964-3-27 FRENKEL 408 Contra Costa Leaves fine, red-streaked. Large flower observed growing amidst common small Flowers. On giant road, .4 mi n of atsf r.r. Crossing, richmond. 15 Comment
  UC2070481  Lupinus pachylobus Barbara Ertter 2003-3-28 18132 Contra Costa Round Valley Regional Preserve, upper Hardy Canyon. Comment
  PASA1681  Lupinus succulentus Annetta Carter 1929-3-31 Contra Costa Hills north of Mt. Diablo, near Clayton Comment
  HSC14134  Luzula comosa Greg Bos 1963-3-9 34 Contra Costa Albany Hill 12 Comment
  UC2028336  Luzula macrantha Barbara Ertter 1991-5-5 9778 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, ridge E of Coal Canyon Comment
  JEPS78624  Lythrum californicum Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3281 Contra Costa Browns Island, Botany Cove Browns Island; , Botany Cove Comment
  UC692631  Lythrum californicum Mary L. Bowerman 1930-9-27 461 Contra Costa (2 mi by road from North Gate (at trough, take trail to west, follow to fence and go through), Mount Diablo); Mount Diablo Comment
  UC692633  Lythrum californicum Mary L. Bowerman 1932-11-26 1672 Contra Costa on n side of road between Sheep Camp Spring and Boulevard Spring (Mount Diablo, Patens Spring); Mount Diablo, Patens Spring Comment
  POM300654  Lythrum californicum Mary L. Bowerman 1932-12-5 1681 Contra Costa Willow Spring (near W road, N of Blvd Spring. Comment
  POM301049  Madia elegans subsp. elegans Mary L. Bowerman 1936-9-10 3542 Contra Costa Mount Diablo: Donner Canyon 335 Comment
  CDA33835  Madia elegans subsp. vernalis D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .103 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  CAS-BOT-BC344325  Madia exigua Joseph Andorfer Ewan 1936-5-24 9693 Contra Costa West slope Bald Peak Comment
  CAS-BOT-BC342985  Madia gracilis Mary L. Bowerman 1930-6-5 264 Contra Costa Mount Diablo. North Road 5.8 miles from North Gate 457 Comment
  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
  CDA8360  Madia gracilis D. G. Kelch, A. G. Murdock 2004-4-25 4 .119 Contra Costa Carquinez Strait; W of Martinez along Carquinez Scenic Dr. Comment
  JEPS111753  Madia gracilis D. G. Kelch 2005-4-24 05 .163 Contra Costa Franklin Canyon 60 Comment
  OBI23153  Madia gracilis Joseph Andorfer Ewan 1934-5-20 8931 Contra Costa Russelmann Park N slope of Mt Diablo Comment
  UC1795769  Madia gracilis Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14677 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
  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
  JEPS6745  Madia radiata R. F. Hoover 1941-4-12 4836 Contra Costa 1 mi n Lone Tree Valley Comment
Read comments
Aug 21 2017
  POM54304  Madia radiata Katherine Brandegee 1908-4-9 s.n. Contra Costa Borders of cultivated fields near Antioch Comment
  UC112946  Madia radiata Mrs. K. Brandegee 1908-4-9 50 Contra Costa near Antioch Comment
  UC761804  Madia radiata R. F. Hoover 1938-3-25 2898 Contra Costa Lone Tree Valley Comment
  UC89535  Madia radiata unknown April 1889 Contra Costa near Antioch Comment
  CAS-BOT-BC343585  Madia sativa R. E. Frenkel 1963-8-18 265 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  CAS-BOT-BC206330  Malacothamnus fremontii Lewis S. Rose 1954-6-29 54081 Contra Costa Nortonville. Comment
  CAS-BOT-BC206332  Malacothamnus fremontii John Thomas Howell; T. H. Kearney 1950-7-5 26635 Contra Costa Hills above Nortonville. Comment
  UC697188  Malacothamnus fremontii Mary L. Bowerman 1932-9-24 1590 Contra Costa Ridge running west from Twin Peaks 335 Comment
  CAS-BOT-BC204091  Malacothamnus hallii Mary L. Bowerman 1933-6-3 2223 Contra Costa Mount Diablo. Two miles by road from North Entrance Comment
  UC1280806  Malacothamnus hallii H. E. McMinn and E. Maino 1931-4-11 123 Contra Costa Mount Diablo Comment
  UC1795741  Malacothamnus hallii Barbara Ertter, Tom Delendick 1996-5-2 14610 Contra Costa Mount Diablo State Park, North Gate Rd. near base of Long Ridge, at old developed spring, mixed scrub. 182 Comment
  UC691437  Malacothrix clevelandii Mary L. Bowerman 1933-4-26 1909 Contra Costa Mount Diablo North Peak Ridge ese North Peak; Mount Diablo, North Peak ridge, ese of the peak 609 Comment
  CAS-BOT-BC345370  Malacothrix clevelandii Brandegee No date on label s.n. Contra Costa Antioch Comment
  UC1613944  Malacothrix floccifera Charles M. Belshaw 1935-6-24 1024 Contra Costa Sobrante Hills Comment
  UC691448  Malacothrix floccifera Mary L. Bowerman 1930-6-10 302 Contra Costa Meridian Peak summit Mount Diablo Comment
  UC92223  Malacothrix floccifera T. S. Brandegee Contra Costa Antioch Comment
  RSA721201  Malva parviflora Barbara Ertter, Mary L. Bowerman 1995-6-11 14248 Contra Costa Shell Ridge Recreation Area southwest of Walnut Creek, at west base Mt.Diablo; near Indian Valley School entrance. 91 Comment
  JEPS111541  Malvella leprosa A. G. Murdock 2004-6-4 315 Contra Costa Martinez - Along creek at Martinez train station 2 Comment
  CDA42228  Marah fabacea D. G. Kelch 2003-3-21 3 .04 Contra Costa Carquinez Strait Region; Martinez; West: Ozol Rock and Scenic Drive. Comment
  CHSC100809  Marah fabacea R. A. Schlising; Anna Eagle 1962-5-29 2281 Contra Costa Roadside. Comment
  CHSC28455  Marah oregana Robert A. Schlising 1964-6-6 2718 Contra Costa Berkeley-Oakland Hills. Comment
  UC691667  Matricaria discoidea Mary L. Bowerman 1932-5-6 1414 Contra Costa Mitchell Canyon Mount Diablo 213 Comment
  UC697138  Matricaria discoidea Mary L. Bowerman 1931-4-4 653 Contra Costa 4.5 mi from Mount Diablo entrance (west road); Mount Diablo Comment
  UCD164887  Matricaria discoidea Henry House 1995-4-30 1995- 8 Contra Costa About 1 km west of Walnut Blvd., ca. 0.5 km south of Marsh Creek Rd. 60 Comment
  JEPS112340  Medicago arabica Dean G. Kelch and Andrew G. Murdock 2004-5-2 04 .169 Contra Costa Crockett - Edwards Canyon; County: Contra Coasta; Edwards Canyon, Crockett, Contra Coasta County, CA. Comment
  UC1197428  Medicago polymorpha Joseph P. Tracy 1934-4-30 13189 Contra Costa between Lafayette and Moraga 152 Comment
  JEPS99985  Melica californica S. O'Neil 2003-5-8 SEO 31 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC188878  Melica californica Harley P. Chandler 1901-4-5 965 Contra Costa between Pine Canyon and Mt. Diablo Summit; Mt. Diablo Region Comment
  UC606756  Melica californica Edward Lee 1936-4-19 1997 Contra Costa Red Rock; San Francisco Bay Comment
  UC691168  Melica californica Mary L. Bowerman 1933-4-26 1934 Contra Costa Perkins Canyon Mount Diablo (branch between the main e ridge of North Peak and the ridge to its south) 487 Comment
  UCD87145  Melica californica P. B. Kennedy 1916-5-1 s.n. Contra Costa Pinehurst. Comment
  UCD87188  Melica californica G. Thomas Robbins 1959-4-18 3994 Contra Costa At the western base of Potrero Hills, near and north of Pt. Richmond. Along Western Drive, Richmond. 7 Comment
  UC692463  Melica imperfecta Mary L. Bowerman 1935-5-3 2956 Contra Costa hillside below Jungle of the Garden Gods (Fossil Ridge (Rock City Ridge)); Mount Diablo, Fossil Ridge (Rock City Ridge) 457 Comment
  UCD38556  Melica imperfecta Beecher Crampton 1956-5-14 3405 Contra Costa Southern boundary of Mt. Diablo State Park. Comment
  SEINET10926310  Melica imperfecta var. flexuosa Virginia E. Long 1933-6-14 Long 221 a Contra Costa Mt. Diablo. On slope S.E.-E. along first west fork from Curry Creek trail. 335 Comment
  SEINET3449596  Melica torreyana Dean G. Kelch, Andrew G. Murdock 2003-3-21 DGK 3 .055 Contra Costa Martinez West, Martinez West, Ozol Rock and Scenic Drive 40 Comment
  UC53660  Melica torreyana Jos. Burtt Davy 1899-4-19 7862 Contra Costa Las Trampas Creek Comment
  UC691166  Melica torreyana Mary L. Bowerman 1933-6-3 2235 Contra Costa summit Meridian Pk (Ranson Pt. trail); Mt. Diablo Comment
  CHSC21641  Melilotus indicus Willis Ball 1975-3-2 465 Contra Costa Contra Loma Regional Park. In area #4. In sand on beach on e side of lake 70 yds s of dam. 30 Comment
  OBI13670  Melissa officinalis G. Thomas Robbins 1959-8-1 4115 Contra Costa Las Trampas Crk, about 1.5 mi SE of St. Marys College 183 Comment
  JEPS112482  Mentha X piperita D. G. Kelch 2004-5-7 04 .193 Contra Costa Ca ada del Cierbo 40 Comment
  UCD150883  Mentha X piperita James A. Neilson Jr. 1972-11-9 s.n. Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 Comment
  UC1607618  Mentha canadensis Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10697 Contra Costa n Pittsburg (near confluence of Sacramento and San Joaquin Rivers, opposite Pittsburg Marina, at edge of lagoon in center of w end of island); Browns Island, nr confluence Sacramento and San Joaquin Rive Comment
  UC1619954  Mentha spicata Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10718 Contra Costa Browns Isl. n Pittsburg (near confluence of Sacramento & San Joaquin rivers, w.-most point opposite Pittsburg marina); Browns Isl. Comment
  UC691474  Mentha spicata Mary L. Bowerman 1938-11-19 3733 Contra Costa Mitchell Canyon Mount Diablo (by stream); , Mitchell Canyon 228 Comment
  UC692698  Mentzelia dispersa Mary L. Bowerman 1930-6-10 305 Contra Costa Mount Diablo, Summit Comment
  POM274554  Mentzelia dispersa L. R. Abrams 1921-5-25 8014 Contra Costa On road to summit, Mt. Diablo. Comment
  UC19612  Mentzelia micrantha Edw. L. Greene 1892-6-24 Contra Costa Mt. Diaiblo Comment
  JEPS40629  Micropus californicus var. californicus W. L. Jepson 1923-4-22 9877 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC348364  Micropus californicus var. californicus Paul F. Covel 1939-5-1 s.n. Contra Costa Somersville, east of Clayton Comment
  UCSC007286  Micropus californicus var. subvestitus Randall Morgan 2010-5-21 5027 Contra Costa Dan Cook Canyon trail, Mount Diablo Comment
  UCSC007192  Microseris Randall Morgan 1989-5-5 1588 Contra Costa Mitchell Cyn trail, W entrance, Mount Diablo Comment
  JEPS111710  Microseris douglasii subsp. douglasii D. G. Kelch 2004-5-7 04 .189 Contra Costa Canada del Cierbo Canada del Cierbo 40 Comment
  UC92197  Microseris douglasii subsp. douglasii Katharine Curran Contra Costa Mount Diablo Comment
  CAS-BOT-BC348894  Microseris douglasii subsp. douglasii K. L. Chambers 1953-4-25 449 Contra Costa Balfour Road, ca. 4 mi. w. of Brentwood and 1.8 mi. e. of its junction with Antioch-Briones Valley Road. (Deer Valley Road.) On e. side of Mount Diablo Range Comment
  UC1819049  Microseris douglasii subsp. douglasii Barbara Ertter, Lisa Schultheis 1995-4-27 14012 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
  UC1055920  Mimetanthe pilosa N. Floy Bracelin 1944-9-9 2799 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  LA209144  Mimulus aurantiacus H. Lewis; 1940-7-5 sn Contra Costa E of Berkeley Comment
  UC76079  Mimulus aurantiacus var. aurantiacus Miss Carlotta Case July, 1904 Contra Costa Muir Station Comment
  UC2027951  Mimulus cardinalis Barbara Ertter with Joanne Kerbavaz and Mary Bowerman 2000-8-20 17515 Contra Costa South side Mount Diablo, Green Ranch Road at Meridian Springs Creek crossing. Comment
  UC1050851  Mimulus guttatus N. Floy Bracelin 1941-5-25 1321 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  POM261437  Mimulus guttatus J. T. Howell 1940-4-21 15402 Contra Costa Pine Canyon, Mount Diablo Comment
  UC2028091  Mimulus guttatus Barbara Ertter, Tony Morosco 1998-4-12 16001 Contra Costa Base of Mount Olympia on north side of Mount Diablo, NE of Olympia Trail. Comment
  SEINET3159684  Mimulus latidens L. S. Rose 1940-4-11 40184 Contra Costa 3 miles W of Byron. 30 Comment
  JEPS116944  Mimulus latidens David Gowen 2008-4-16 862 Contra Costa Just south of parking area for Black Diamond Mines Regional Preserve on Frederickson Road. Comment
  UC691739  Mimulus nasutus Mary L. Bowerman 1931-4-18 724 Contra Costa at junction of e and ne forks Sycamore Canyon; Mount Diablo 396 Comment
  UC691909  Mimulus nasutus Mary L. Bowerman 1933-5-9 2056 Contra Costa e Pine Saddle; Mount Diablo, Curry Creek tributary Comment
  JEPS99598  Mimulus rattanii Mary Bowerman 1978-5-26 Contra Costa Mount Diablo, between Lower Summit parking area and road. Comment
  UC465577  Minuartia californica Chesnut and Drew 1889-4-16 Contra Costa Martinez Comment
  CAS-BOT-BC388584  Minuartia douglasii Alice Eastwood 1915-5-30 4512 Contra Costa Mt. Diablo Comment
  UC1795666  Minuartia douglasii Barbara Ertter, Mary Bowerman et al. 1995-5-7 14059 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, open north facing slope around rock outcrops (near creek crossing above woods) with seepage. Comment
  JEPS51850  Monardella douglasii Mary L. Bowerman 1933-6-21 2327 Contra Costa Donner Canyon: slightly south of Bilharan Lodge; Mount Diablo Comment
  UC691409  Monardella douglasii Mary L. Bowerman 1933-6-21 2327 Contra Costa slightly s Bilharan Lodge; Mount Diablo, Donner Canyon Comment
  CAS-BOT-BC220513  Monardella villosa Katharine Brandegee 1907-7-4 s.n. Contra Costa Martinez Comment
  POM223335  Monolopia lanceolata L. S. Rose 1935-5-16 35166 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC349614  Monolopia major Alice Eastwood 1914-3-14 3803 Contra Costa Byron Springs Comment
  UC50097  Monolopia major H. P. Chandler 1900-3-23 582 Contra Costa Briones Valley Mount Diablo Region Comment
Read comments
Feb 9 2019
  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
  JEPS73689  Montia fontana L. R. Heckard with Wm. Hirano and Ted Niehaus 1968-3-5 1758 Contra Costa about 3 mi se of Byron (at junction of Holey Road, along Byron-Bethany Road) 7 Comment
  RSA666388  Montia fontana Barbara Ertter 1993-4-17 11511 Contra Costa Morgan Territory 10 air miles N of Livermore, in lee of Mt. Diablo. Shallow side at edge of sandstone outcrop S of Hummingbird trail. 610 Comment
  UC1795789  Montia fontana subsp. chondrosperma Barbara Ertter, Mary Bowerman et al. 1995-5-7 14029 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, wet ground around small pond west of road in grassy flat. Comment
  JEPS65189  Myosurus L. R. Heckard 1971-4-15 2478 Contra Costa at intersection of Holey Road, s of Byron Comment
  UC1738082  Myosurus minimus D. E. Stone 1956-4-4 14296 C-6 Contra Costa 3 mi S of Byron (on road to Herdlyn) Comment
  UC1738083  Myosurus minimus D. E. Stone 1957-2-28 14268 A12 Contra Costa 3 mi S of Byron ( on road to Herdlyn) Comment
  CDA24286  Myosurus minimus Jim Jokerst 1989-3-28 3058 Contra Costa Northwest of junction of Byron Hot Springs Road and Armstrong Road. Northeast of Livermore. 0 Comment
  UCD96601  Myosurus minimus D. E. Stone 1957-4-4 70 B Contra Costa On State 4, 1 mile south of Byron. Comment
  UC1738121  Myosurus sessilis D. E. Stone 1955-8-29 8 -31 Contra Costa 3 mi S of Byron (on road to Herdlyn) Comment
  UCD96287  Myosurus sessilis H. L. Mason 1952-4-14 14264 Contra Costa 3.5 miles south of Byron. Comment
  RSA755539  Najas guadalupensis Barbara Ertter, Brad Olson 1991-9-28 10838 Contra Costa San Pablo Reservoir between Orinda and El Sobrante 91 Comment
  JEPS102897  Narcissus tazetta Barbara Ertter 1998-1-25 15910 Contra Costa Back Canyon Road at crossroad S of Donner Canyon trailhead Mount Diablo Comment
  CDA31836  Nassella lepida D. G. Kelch 2008-4-24 8 .062 Contra Costa Carquinez Strait; W of Ozol Rock ~2 km W of Martinez. Comment
  UC691262  Nassella lepida Mary L. Bowerman 1932-4-27 1376 Contra Costa canyon w Riggs Canyon (e bank of stream, s face of ridge); Mount Diablo, Oyster Ridge 289 Comment
  JEPS116788  Nassella lepida David Gowen 2006-6-14 612 Contra Costa Morgan Territory Regional Park; At the NW end of Eagle Trail. Comment
  CAS-BOT-BC260131  Nassella pulchra Mary L. Bowerman 1933-5-18 2125 Contra Costa Mount Diablo. Blackberry Spring Comment
  CDA29507  Nassella pulchra D. G. Kelch, Troy MacGregor 2009-5-1 9 .278 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  UCD87465  Nassella pulchra Beecher Crampton 1956-5-14 3403 Contra Costa Southeastern Mount Diablo, headwaters of Marsh Creek. 640 Comment
  JEPS105707  Navarretia heterandra David Gowen 2004-5-14 60 Contra Costa Mt. Diablo. North of the road at Curry Point, ca. 1780 ft. elev. Comment
  RSA22143  Navarretia mellita J. T. Howell 1938-6-30 13938 Contra Costa Head of Siesta Valley Comment
  RSA469883  Navarretia pubescens Thekla Mohr 1917-07 3155 Contra Costa Mount Diablo Comment
  UC691612  Navarretia pubescens Mary L. Bowerman 1930-6-10 298 Contra Costa Oak Knoll Picnic Grounds Mount Diablo Comment
  UC2042980  Navarretia pubescens Barbara Ertter with Joanne Kerbavaz 2000-8-20 17496 Contra Costa South side Mount Diablo, across road from Curry Point trailhead. Comment
  JEPS87936  Navarretia squarrosa Barbara Ertter with Laura Fujii 1990-7-21 9398 Contra Costa w of Pleasant Hill (near junction of Briones Crest and Spengler trails); Briones Regional Park, Briones Hills 396 Comment
  SEINET9296212  Navarretia squarrosa Unknown 1950-9-22 621 Contra Costa Contra Costa County 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
  JEPS104757  Nemophila John L. Morrison 1937-4-11 2098 Contra Costa Bald Peak, E slope 571 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
  JEPS100041  Nemophila heterophylla G. Smick 2003-2-27 GAS 54 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS3141  Nemophila heterophylla Mary L. Bowerman 1930-6-10 308 Contra Costa Meridian Peak Summit , Meridian Peak summit (Mount Diablo) Comment
  UC1106202  Nemophila heterophylla Peter H. Raven 1950-3-12 1426 Contra Costa Happy Valley Road .9 mi above junction with Upper Happy Valley Road; Happy Valley Road 243 Comment
  UC691705  Nemophila heterophylla Mary L. Bowerman 1933-4-9 1838 Contra Costa w fork , Donner Canyon, w fork (Donner Canyon; Mount Diablo) 243 Comment
  POM65297  Nemophila heterophylla C. F. Baker 1903-4-28 2812 Contra Costa Mitchell s Canyon, Mt. Diablo. Comment
  POM65329  Nemophila heterophylla V. King Chesnut, E. R. Drew 1889-4-15 s.n. Contra Costa Martinez. Comment
  UC67147  Nemophila menziesii Harley P. Chandler 1900-3-23 595 Contra Costa Briones Hills San Francisco Bay Region, Briones Hills Comment
  UC1125161  Nicotiana glauca G. T. Nordstrom 1937-10-28 1402 Contra Costa 1.4 mi n Somersville; Mt. Diablo Quad. 91 Comment
  UC2028006  Nicotiana glauca Barbara Ertter with Amy Rusev 1998-1-17 15899 Contra Costa Edge of Lime Ridge Open Space at NW foot of Mount Diablo, around former quarry [subsequently developed] on south side of Ygnacio Valley Road. Comment
  CDA5796  Nicotiana tabacum R. DeBoer 1966-12-2 Contra Costa Golden Gate Fish Co., Point San Pablo, Richmond. 0 Comment
  UC1128078  Oemleria cerasiformis N. French 1933-3-13 36 Contra Costa San Pablo Creek San Francisco Quad. (above Sheldon School) 91 Comment
  UC2028047  Oemleria cerasiformis Barbara Ertter 1998-2-15 15916 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, Coyote Creek upstream from Joaquin Pond. Comment
  CDA21549  Oenothera deltoides subsp. cognata D. G. Kelch 2000-9-4 0 .145 Contra Costa CA Delta; N Oakley. Comment
  RSA0027719  Oenothera deltoides subsp. cognata Barbara Ertter, Chris Thayer 1994-5-19 12782 Contra Costa Highway 4 between Brentwood and Oakley at Honey Lane, halfway between Cypress Rd and Delta Rd. Comment
  CAS-BOT-BC171591  Oenothera deltoides subsp. howellii P. A. Munz 1949-6-1 14436 Contra Costa Sand dunes east of Antioch. Comment
  RSA119427  Oenothera deltoides subsp. howellii William M. Klein 1958-6-9 432 Contra Costa Sandhills N of Antoch, along the San Joaquin River Channel. 2 Comment
  RSA0004532  Oenothera deltoides var. howellii Alice Eastwood, J. T. Howell 1936-4-19 2147 Contra Costa Sand dunes at Antioch Comment
  SEINET7719094  Oenothera dentata Chesnut, Drew 1889-4-18 Contra Costa Antioch Comment
  CDA36713  Olea europaea D. G. Kelch 2010-10-5 10 .417 Contra Costa The Delta; Just east of Antioch bridge. Comment
  CHSC97920  Olea europaea D. G. Kelch 2006-6-23 06 .322B Contra Costa West Valona. West of the Zampa Bridge above San Pablo Ave. Along small stream draining north into the western end of the Carquinez Strait. 91 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
  UC1952821  Olea europaea Barbara Ertter with David Gowen 2010-11-17 20701 Contra Costa north face of Lime Ridge Open Space (City of Walnut Creek). Comment
  UC1125588  Orobanche fasciculata C. M. Belshaw 1936-5-8 2055 Contra Costa SE Slope of Mount Diablo. Comment
  UC691505  Orobanche fasciculata Mary L. Bowerman 1935-5-16 2995 Contra Costa Mount Diablo. Russelman Park, just south of the north boundary of section 25 (east of gate). Comment
  JEPS21355  Orobanche vallicola Ray F. Smith 1956-9-23 Contra Costa n. base Mt. Diablo (Russellmann Park); , Russellmann Park Comment
  CAS-BOT-BC502955  Orobanche vallicola John Thomas Howell 1929-9-21 4391 Contra Costa Marsh Creek Road, 7 miles SE of Clayton Comment
  SEINET10549673  Orthocarpus erianthus John T. Middleton 1936-4-24 Middleton 95 D Contra Costa Deer valley. Comment
  POM15363  Orthocarpus purpurascens H. P. Chandler 1901-3-22 849 Contra Costa Martinez. 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
  UC692362  Osmorhiza brachypoda Mary L. Bowerman 1933-5-17 2108 Contra Costa branch of Curry due s Olafson's barn (near stream bottom); Mount Diablo 289 Comment
  SEINET9287601  Packera multilobata Unknown 1999-12-20 1219291 Contra Costa Along Wildcat Canyon Rd., 1.9 mi NW of intersection of Wildcat Canyon Rd and Dam Rd. vicinity of Orinda. Comment
  CDA33874  Panicum capillare Diveney, Denijs 2008-9-17 PDR# 1454350 Contra Costa Concord; Contra Costa Canal near Grayson Creek 0 Comment
  UCD32992  Panicum dichotomiflorum Beecher Crampton 1965-9-29 7525 Contra Costa 5 miles S of Brentwood, Vasco Road and Camino Vaqueros. Comment
  UC1818876  Panicum miliaceum subsp. miliaceum Barbara Ertter 1995-8-19 14505 Contra Costa Edge of Cerrito Creek on north side of Albany Hill, south edge of El Cerrito; dense weeds at edge of sluggish water. Comment
  JEPS77535  Papaver californicum Margaret Ely 1978-5-3 Contra Costa w of Donner Canyon (toward Twin Peaks from Back Creek, n side of Mount Diablo); Mount Diablo 304 Comment
  SD241914  Papaver californicum Mary Bowerman 1978-5-14 Contra Costa Mount Diablo. Old wagon trail to mines on E face of Eagle Peak. Comment
  OBI11697  Papaver heterophyllum Robert F. Hoover 1968-5-16 11091 Contra Costa Upper Marsh Crk Comment
  UC1111579  Parietaria hespera var. californica Herbert L. Mason 1929-5-5 5260 Contra Costa Nortonville Comment
  UC1818892  Parvisedum pentandrum Barbara Ertter, Mary Bowerman et al. 1995-5-7 14058 Contra Costa Three-Springs Creek open north facing slope around rock outcrops (near creek crossing above woods) with seepage. Comment
  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
  UC1818967  Paspalum dilatatum Barbara Ertter 1995-9-30 14523 Contra Costa North bank of Cerrito Creek at end of Yosemite Avenue in El Cerrito, foot of Albany Hill; stonework bank at edge of overgrown sluggish creek. Comment
  UC2028377  Paspalum dilatatum Barbara Ertter 1998-6-20 16241 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Bob Pond at Old Borges Ranch Comment
  CAS-BOT-BC259646  Paspalum dilatatum John Thomas Howell; Gordon H. True 1972-6-29 48940 Contra Costa Along Byron Hot Springs Road where water has stood, SE of Byron Comment
  CAS-BOT-BC259648  Paspalum dilatatum R. E. Frenkel 1963-5-15 189 Contra Costa E side of Marsh Creek Road 2 miles E of Clayton Comment
  CDA37338  Paspalum distichum D. G. Kelch 2010-10-31 10 .443 Contra Costa Valley north of Alhambra Valley Rd., south of Pinole Peak, east of Hercules. Comment
  UCD150906  Paspalum distichum James A. Neilson Jr. 1972-11-2 3614 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  UCD88942  Paspalum distichum E. K. Stillwell 1967-7-17 s.n. Contra Costa Brentwood. Comment
  JEPS87902  Pectocarya pusilla Barbara Ertter, Lynne Hosley 1993-4-17 11508 Contra Costa ca. 10 air mi. n. Livermore (hills in lee of Mt. Diablo, e. side of open meadow along Blue Oak trail, Morgan Territory); Morgan Territory 609 Comment
  UC573057  Pectocarya pusilla H. L. Mason 1931-4-5 5827 Contra Costa rd between Marsh Creek and Livermore Comment
  UC1125723  Pedicularis densiflora R. C. Wilson 1935-2-27 115 Contra Costa 1/2 mi s of Somersville 365 Comment
  UCSB12518  Pedicularis densiflora Grah, Nancy 1962-4-14 Contra Costa 1.1 miles on Tappan Lane north of Tarry Lane, Orinda 243 Comment
  RSA123949  Pedicularis densiflora E. F. Sprague 1957-5-30 1134 Contra Costa Rocky Point, Mount Diablo. 610 Comment
  JEPS65611  Pediomelum californicum F. T. Bioletti May, 1894 Contra Costa Mt. Diablo Comment
  POM300699  Pediomelum californicum Mary L. Bowerman 1935-6-1 3114 Contra Costa Summit, between the one-way roads. Comment
  CDA42757  Pellaea andromedifolia A. G. Murdock 2004-4-3 247 Contra Costa Franklin Canyon - McHarry Ranch Road, near fire road entrance. Comment
  UC42646  Pellaea andromedifolia McLean Mar. 1875 Contra Costa Mt Diablo Comment
  JEPS111517  Pellaea mucronata D. G. Kelch 2005-5-13 05 .280 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Ozol rock in chamise chaparral 66 Comment
  UC1795797  Pellaea mucronata var. mucronata Barbara Ertter, Mary L. Bowerman 1994-6-19 12856 a Contra Costa Mt. Diablo State Park east of Walnut Creek; scrub oak thicket north road, north of lower-summit parking lot, next to drainage on N. facing slope. Comment
  JEPS15174  Penstemon centranthifolius C. M. Belshaw 1936-5-9 2081 Contra Costa near Plot 14 (Nortonville); Mt. Diablo Quad., Nortonville Comment
  RSA101693  Penstemon centranthifolius H. L. Mason 1929-3-31 5156 Contra Costa Along San Joaquin River, Antioch. Comment
  UCD124087  Penstemon centranthifolius M. Wiesendanger 1925-5-1 1481 Contra Costa San Miguel. Comment
  JEPS7569  Penstemon heterophyllus var. heterophyllus W. L. Jepson 1921-6-16 9315 Contra Costa Mt. Diablo Comment
  UCD124286  Penstemon laetus Terri Williamson 1990-6-2 88 Contra Costa 212 Poshard Street, Pleasant Hill. (Original collected in Tehachapi Mountains, Hwy/. 58 Kern County). 274 Comment
  UC2042960  Pentachaeta alsinoides Barbara Ertter with David Gowen 2006-6-6 18676 Contra Costa Upper San Leandro Reservoir Watershed (EBMUD) south of Moraga. Comment
  JEPS111088  Pentagramma triangularis subsp. triangularis Lee Echols 2003-3-17 s.n. Contra Costa N of Lark Drive in S portion of Danthonia grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  UC692378  Perideridia kelloggii Mary L. Bowerman 1933-4-22 1903 Contra Costa w 1970 point; Mount Diablo, Inner Black Hills Comment
  CAS-BOT-BC413781  Persicaria lapathifolia Walter Knight 1978-8-27 3163 Contra Costa Contra Loma Regional Park 30 Comment
  UC2029086  Persicaria maculosa Barbara Ertter 2000-7-16 17396 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park. Comment
  JEPS108289  Phacelia bolanderi David Gowen 2005-5-18 338 Contra Costa Skyline Nat'l Rec. Trail. East of Grizzly Peak Blvd. and north of Claremont/Fish Ranch Rd. Comment
  UC162556  Phacelia breweri H. M. Hall 1901-4-5 1748 Contra Costa Mt. Diablo Region of San Francisco Bay 853 Comment
  UC614672  Phacelia breweri L. Constance, J. L. Morrison 1938-4-5 2191 Contra Costa w slope of mt. near Deer Flat and head of Mitchell Canyon; South Coast Ranges, Mount Diablo 670 Comment
  POM118167  Phacelia breweri H. M. Hall, F. M. Essig 1916-5-31 10140 Contra Costa Mount Diablo, south of the summit. 1130 Comment
  RSA75338  Phacelia breweri Mary L. Bowerman 1932-4-16 1341 Contra Costa Rocky bank, Eagle Point. 671 Comment
  UC1047007  Phacelia californica L. R. Heckard 1951-5-30 41 Contra Costa above Broadway Tunnel (along road to Grizzly Peak Blvd.) Comment
  UC671751  Phacelia californica Lincoln Constance 1940-3-16 2524 Contra Costa margin of San Francisco Bay Point Richmond 15 Comment
  UC762065  Phacelia californica R. F. Hoover 1938-2-21 2753 Contra Costa Point Richmond Comment
  UCD32388  Phacelia californica Beecher Crampton 1950-4-22 533 Contra Costa Contra Costa County, between Concord Valley and Pittsburg, steep hillside of southern exposure in road cut along state highway 4. 152 Comment
  SEINET3158089  Phacelia ciliata L. S. Rose 1937-3-26 37013 Contra Costa Brentwood 6 Comment
  POM89836  Phacelia ciliata Chesnut, E. R. Drew 1889-4-17 s.n. Contra Costa Summerville. Comment
  JEPS18324  Phacelia ciliata var. ciliata Rimo Bacigalupi with F. Chisaki 1957-3-27 5760 Contra Costa field along Newby rd 0.1 mi nw crossing with Empire Ave. (road) (about 2 mi sw of Oakley) 24 Comment
  JEPS18382  Phacelia ciliata var. ciliata Rimo Bacigalupi with F. Chisaki 1957-3-27 5762 Contra Costa at jnct. of Lone Tree Way and Hillcrest Ave. (road) (about 1/2 mi w of Lone Tree School, 3 1/2 mi se of Antioch) 39 Comment
  JEPS111829  Phacelia distans D. G. Kelch 2005-4-15 05 .141 Contra Costa Rodeo Creek EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump) 100 Comment
  UC1084500  Phacelia distans G. Thomas Robbins 1940-5-19 321 Contra Costa e Antioch (sand hills bordering river); San Joaquin River Comment
  RSA276851  Phacelia distans James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  RSA74783  Phacelia distans F. W. Peirson 1923-7-1 5302 Contra Costa Near summit of Mt. Diablo. Comment
  CAS-BOT-BC6694  Phacelia distans var. australis Charles Fuller Baker 1903-4-28 2806 Contra Costa Antioch Comment
  CAS-BOT-BC154325  Phacelia phacelioides Mary L. Bowerman 1935-5-8 2974 Contra Costa Mount Diablo. Muir Area 1036 Comment
  CAS-BOT-BC154334  Phacelia phacelioides Lincoln Constance; Carl W. Sharsmith; Howard S. Reed 1940-4-27 2574 Contra Costa Northy of Juniper Camp, Mount Diablo 762 Comment
  JEPS99583  Phacelia rattanii Mary Bowerman 1994-6-19 Contra Costa Mount Diablo, Muir aarea, 10'W of restroom Comment
  CDA28836  Phacelia tanacetifolia D. G. Kelch, Jessica Kolman 2009-5-29 9 .308 Contra Costa Carquinez Strait; Pinole Valley Park, near ridgetop. Comment
  JEPS101085  Phacelia tanacetifolia Dean W. Taylor 1992-4-16 12394 Contra Costa S of Byron Hot Springs, in swale draining on E margin of NE1/4 SE1/4 Section 34 45 Comment
  JEPS111840  Phacelia tanacetifolia D. G. Kelch 2004-4-3 04 .56 Contra Costa Crockett-Tormey Headlands west of I-80 and Cummings Skyway junction. 75 Comment
  SEINET3558886 Image available Phacelia tanacetifolia Lewis S. Rose 1933-4-17 33091 Contra Costa Antioch. Comment
  POM300967  Phacelia tanacetifolia Mary L. Bowerman 1936-4-23 3404 Contra Costa Deer Ridge (Mitchell-Pine divide) west of Deer Flat trail, just west of the section line. 838 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
  CDA2278  Phalaris aquatica T. C. Fuller 1961-9-13 7003 Contra Costa Byron-Tracy Hwy (Hwy J4), 0.1 mile north of Delta-Mendota Canal. 0 Comment
  SACT001701  Phalaris arundinacea Malcolm Nobs, S. Smith 1949-7-8 Contra Costa 4 miles north of Kingston Comment
  UC2028499  Phalaris coerulescens Barbara Ertter 1999-6-12 16713 Contra Costa Black Hawk Ridge road on south side of Mount Diablo, just south confluence of NE and E forks of Sycamore Creek Comment
  POM181445  Phalaris lemmonii I. L. Wiggins 1930-4-7 4583 Contra Costa 1/4 mile S of Byron Comment
  POM300721  Phalaris minor Mary L. Bowerman 1932-4-27 1402 Contra Costa Oyster Ridge, south face , canyon west of Riggs Canyon 351 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
  CAS-BOT-BC250683  Phalaris paradoxa John Thomas Howell 1933-5-14 11235 Contra Costa St. Mary's College Comment
  UCD146727  Phalaris paradoxa G. F. Hrusa; D. Crowe 1998-5-8 14401 Contra Costa Sacramento-San Joaquin River Delta. East end of Dow Chemical property. 15 Comment
  UC30192  Phlox gracilis H. N. Bolander Apr 1866 6398 Contra Costa Monte Diablo Comment
  UC691716  Pholistoma auritum Mary L. Bowerman 1932-2-13 1089 Contra Costa just above first main fork Alamo Canyon; Mt. Diablo, Alamo Canyon 381 Comment
  UCD120958  Pholistoma membranaceum J. M. Tucker 1981-4-25 4454 Contra Costa Antonio Souza Ranch southwest of Byron (extended Section NW quarter Sec. 31, R3E, T1S, Mt. Diablo Meridian). 309 Comment
  UC1078912  Phoradendron macrophyllum Job Kuijt 1958-1-12 1442 Contra Costa near Walnut Creek (Saranap); Saranap Comment
  UC1078913  Phoradendron macrophyllum Job Kuijt 1958-1-12 1443 Contra Costa near Walnut Creek (Saranap); Saranap Comment
  UC1795770  Phoradendron macrophyllum Barbara Ertter, Brad Olson, Diane Lake, Seth Adams, et al. 1994-9-11 13085 Contra Costa Chaparral Springs addition to Mt. Diablo State Park, north side of Marsh Creek Road at high point southeast of Clayton, open oak woodland (Canyon live oak, blue oak, buckeye); north facing slope with local grove of Fraxinus, Aesculus, toyon. Comment
  UC1818974  Phoradendron macrophyllum Barbara Ertter, Lisa Schultheis, Laura Fujii 1995-12-30 14544 Contra Costa Mount Diablo, road to Black Hawk Ridge, open buckeye woodland on north side of ridge. Comment
  CAS-BOT-BC141122  Phoradendron serotinum subsp. macrophyllum L. R. Abrams 1916-7-29 6307 Contra Costa Walnut Creek Comment
  UC608463  Phoradendron villosum Beryl O. Schreiber 1934-2-22 944 Contra Costa Mt. Diablo Rd. Comment
  POM212436  Phoradendron villosum Joseph A. Ewan 1933-10-15 8040 Contra Costa SW slope of Mt Diablo. 1067 Comment
  UC692039  Phoradendron villosum Mary L. Bowerman 1932-1-23 1077 Contra Costa knoll w. of the knoll between Sycamore Ridge and 1920 point Mt. Diablo Comment
  POM181424  Phragmites australis I. L. Wiggins 1930-4-18 4588 Contra Costa Jersey Island Comment
  UCD163491  Phragmites australis D. Slakey; CNPS Volunteers 2015-9-12 224 Contra Costa Northern edge of Browns Island, at entrance to Crooked Slough. Plants infected with pests; TJM 2 0 Comment
  CDA9279  Phragmites australis D. G. Kelch 2002-7-15 2 .007 Contra Costa CA Delta; Old San Joaquin River channel, E of Brentwood. San Joaquin County border. 0 Comment
  UC1795816  Pickeringia montana Barbara Ertter, Lisa Schultheis 1995-4-27 14019 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
  UC692284  Pickeringia montana var. montana Mary L. Bowerman 1933-6-7 2277 Contra Costa Inner Black Hills Mount Diablo (n exposure, w of 1970) Comment
  UC692672  Pickeringia montana var. montana Mary L. Bowerman 1933-2-4 1690 Contra Costa flat e Mt. Diablo-North Peak divide; Mount Diablo 822 Comment
  CAS-BOT-BC202276  Pickeringia montana var. montana Mary L. Bowerman 1933-2-4 1690 Contra Costa Mount Diablo. Flat east of Meridian-North Peak divide 822 Comment
  CAS-BOT-BC202277  Pickeringia montana var. montana W. W. Carruth 1891-5-1 s.n. Contra Costa Moraga Valley Comment
  CDA15276  Picris echioides G. F. Hrusa, D. Crowe, R. York 1998-7-17 14713 Contra Costa Sacramento Delta; E end of Dow Chemical property. Pittsburg. Comment
  CAS-BOT-BC76965  Pilularia americana Lewis S. Rose 1940-4-30 40259 Contra Costa 4 mi. S of Antioch 30 Comment
  JEPS47899  Pinus attenuata W. L. Jepson 1909-9-1 Contra Costa Mortaga Ridge Comment
Read comments
Aug 18 2011
  UC692077  Pinus attenuata Mary L. Bowerman 1932-3-20 1121 Contra Costa ne fork, toward top of middle ridge Sycamore Canyon Comment
  CAS-BOT-BC78543  Pinus coulteri J. W. Congdon 1894-10-16 s.n. Contra Costa Mt. Diablo Comment
  JEPS46810  Pinus coulteri W. L. Jepson 1931-4-5 15726 Contra Costa Nortonville Comment
  UC1061682  Pinus coulteri N. Floy Bracelin 1941-12-29 1835 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  SJSU1345  Pinus muricata A. W. Jacobs 1953-4-26 Contra Costa Tilden Regional Park Botanic Garden, E of Berkeley Comment
  JEPS111991  Pinus pinea D. G. Kelch 2005-1-21 05 .7 Contra Costa Crockett Collected along railroad tracks in West Valona across from the decommissioned sewage treatment plant 15 Comment
  UC1051348  Pinus radiata N. Floy Bracelin 1941-12-29 1833 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  JEPS48206  Pinus sabiniana W. L. Jepson 1931-4-5 15727 Contra Costa Nortonville Comment
  UC1134128  Pinus sabiniana R. C. Wilson 1935-2-27 116 A Contra Costa 2 mi s Clayton; Mt. Diablo Quad. 259 Comment
  UC400311  Pinus sabiniana State Survey 1866-5-1 Contra Costa Monte del Diablo Comment
  UC521715  Pinus sabiniana Joseph Andorfer Ewan 1933-10-15 8039 Contra Costa on grassy open sw slope of Mt. Diablo Mt. Diablo 1066 Comment
  UC691920  Pinus sabiniana Mary L. Bowerman 1931-2-8 516 Contra Costa by roadside around bend from (below) Silver Spring Comment
  UC1200775  Pinus thunbergii L. R. Wright 1960-3-10 Contra Costa near Bryant Reservoir <Briones?>; Orinda Comment
  CDA32621  Piptatherum miliaceum A. G. Murdock, D. G. Kelch 2004-6-4 316 Contra Costa Carquinez Strait Region; Martinez - Train Station. Comment
  UC1789206  Pistacia atlantica Barbara Ertter with Dan Norris 2001-4-8 17603 Contra Costa Lime Ridge Open Space, main pit of west quarry area N of adjacent golf course 121 Comment
  UC2061504  Pittosporum undulatum Dean G. Kelch 2016-5-27 16 .135 Contra Costa Miller-Knox Hill. Comment
  CDA1346  Plagiobothrys D. G. Kelch 1992-3-21 1823 -A Contra Costa 2.5 mi. SE of Byron; along RR tracks, N of junction of Holey Rd. and Byron Hwy. 0 Comment
  JEPS60914  Plagiobothrys acanthocarpus Edw. L. Greene 1889-3-24 Contra Costa near Byron Comment
  JEPS88006  Plagiobothrys acanthocarpus Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8117 Contra Costa ca. 15 air mi. s.w. Stockton (w. & adjacent to Clifton Court Forebay); s.e. Contra Costa Co. Comment
  UC24580  Plagiobothrys acanthocarpus J. Burtt Davy 1895-4-7 913 Contra Costa Antioch Comment
  UC24549  Plagiobothrys bracteatus W. H. Brewer 1862-4-30 1007 Contra Costa Camp 69 Walnut Creek Comment
  UC691334  Plagiobothrys bracteatus Mary L. Bowerman 1933-3-18 1755 Contra Costa Hidden Pond Mount Diablo Comment
  UC78037  Plagiobothrys canescens T. S. Brandegee May 1890 Contra Costa Antioch Comment
  UC79334  Plagiobothrys canescens Katharine Brandegee May 1888 Contra Costa near Antioch Comment
  SEINET8731527 Image available Plagiobothrys canescens Lewis S. Rose 1933-1 33046 Contra Costa Pittsburg. Comment
  RSA14931  Plagiobothrys fulvus var. campestris Alice Eastwood, John Thomas Howell 1935-4-7 2120 Contra Costa Near Byron on Marsh Creek Road. Comment
  CHSC67894  Plagiobothrys humistratus James D. Jokerst 1989-3-28 3060 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  CDA40675  Plagiobothrys humistratus Jim Jokerst 1989-3-28 3060 Contra Costa Northwest of junction of Byron Hot Springs Road and Armstrong Road. Northeast of Livermore. 0 Comment
  UC691404  Plagiobothrys nothofulvus Mary L. Bowerman 1931-4-4 630 Contra Costa 2 mi from Mount Diablo west road (= North Rd.) entrance; Mount Diablo 259 Comment
  UC2070573  Plagiobothrys stipitatus Barbara Ertter with David Gowen and Mike Park 2004-4-13 18348 Contra Costa Black Diamond Mines Regional Park south of Pittsburg, ca 1 km due east of Sidney Flat Headquarters. Comment
  UC78186  Plagiobothrys stipitatus C. F. Baker 1903-4-27 2799 Contra Costa Byron Comment
  OBI20604  Plagiobothrys stipitatus var. micranthus Robert F. Hoover 1967-4-28 10510 Contra Costa Byron Hot Springs Comment
  UC407385  Plagiobothrys stipitatus var. micranthus Ira L. Wiggins 1930-4-17 4582 Contra Costa 0.25 mi s Byron Comment
  UC78124  Plagiobothrys stipitatus var. stipitatus Mrs. K. Brandegee Apr 1883 Contra Costa near Antioch Comment
  UC573071  Plagiobothrys tenellus H. L. Mason 1932-3-20 6847 Contra Costa Antioch sand hills Comment
  JEPS105697  Plagiobothrys tenellus David Gowen 2004-4-13 28 Contra Costa Lime Ridge Open Space. Ridge Trail, south of its junction with Blue Oak Trail, ca. 700' elev. Comment
  RSA0029671  Plagiobothrys trachycarpus Barbara Ertter, R. K. Brummitt 1998-5-13 16143 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, depression in road from Somersville Road to south leg of Loughler Loop Trail. Comment
  JEPS111489  Plagiobothrys undulatus Nancy Hillyard 2004-5-18 886 Contra Costa Briones Park Comment
  SEINET3854794 Image available Plantago bigelovii Lewis S. Rose 1933-3-29 33040 Contra Costa Nortonville. Comment
  CHSC68020  Plantago elongata James D. Jokerst 1989-3-28 3063 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  JEPS112001  Plantago erecta D. G. Kelch 2005-4-24 05 .156 Contra Costa Franklin Canyon Franklin Canyon, Contra Costa County, CA. Collier Hill. West Carbon 60 Comment
  POM61262  Plantago erecta C. F. Baker 1903-4-25 2803 Contra Costa Antioch. Comment
  RSA181409  Plantago erecta James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  UC32534  Plantago erecta J. P. Tracy 1900-3-24 619 Contra Costa Point Richmond San Francisco Bay Region 15 Comment
  POM61278  Plantago erecta C. F. Baker 1903-4-28 2828 Contra Costa Marsh Creek, Mt. Diablo. Comment
  JEPS22022  Plantago lanceolata G. Thomas Robbins with S. Galen Smith 1958-6-2 3854 Contra Costa Just east of crossing of Hastings Slough on road between Port Chicago and Avon Comment
  JEPS22023  Plantago lanceolata G. Thomas Robbins with S. Galen Smith 1958-6-2 3853 Contra Costa just e Hercules city boundary (Franklin Canyon Road (State Highway 4)); Refugio Valley 18 Comment
  JEPS99965  Plantago lanceolata G. Smick 2003-5-30 GAS 203 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2032811  Plantago lanceolata Doran, Andrew Scott 2012-3-20 681 Contra Costa Brooks island loading dock, North side of island. Comment
  UC1818865  Plantago major Barbara Ertter, Kristin Ertter 1995-7-11 14474 Contra Costa Sulfur Spring on Pine Cr, Diblo Foothill Regional Park, marshy wet ground. 121 Comment
  SJSU7798  Plantago subnuda G. A. Samuelson 1955-5-22 Contra Costa McAvoy Boat Harbor, McAvoy Comment
  JEPS51585  Platystemon californicus W. L. Jepson 1887-4-12 Contra Costa Moraga Valley Comment
  UC101594  Platystemon californicus Katharine Brandegee 1907-5-5 f Contra Costa between Antioch and Marsh Creek; between Antioch and Marsh Creek Comment
  UC1126493  Platystemon californicus R. C. Wilson 1935-3-26 143 Contra Costa 2 mi n Walnut Creek; Concord Quad. Comment
  UC1607967  Plectritis ciliosa Donald G. Nelson 1937-3-30 463 Contra Costa along Marsh Creek Rd. between Clayton and Byron Comment
  UC2027798  Plectritis ciliosa Barbara Ertter with Brad Olson, Dianne Lake 1996-4-14 14587 Contra Costa East side of Mt. Diablo, access from Morgan Territory Road to Prospectors Gap Road, gate between archery range and private ranch Comment
  JEPS6156  Plectritis congesta L. T. Dempster 1954-6-4 Contra Costa N of Orinda Wildcat Canyon Road Comment
  UC1818893  Plectritis macrocera Barbara Ertter, Mary Bowerman et al. 1995-5-7 14068 Contra Costa Three-Springs Creek, small serpentine patch at road junction, Comment
  UC55888  Plectritis macrocera H. M. Hall 1900-3-23 Contra Costa San Francisco Bay Region, San Pablo Creek San Pablo Creek; San Francisco Bay Region, San Pablo Creek Comment
  UC691521  Plectritis macrocera Mary L. Bowerman 1931-5-7 807 Contra Costa Mount Diablo, North Peak North Peak; Mount Diablo, North Peak Comment
  UC691523  Plectritis macrocera Mary L. Bowerman 1933-4-15 1866 Contra Costa Canyon s of Arroyo del Cerro (Mount Diablo); Mount Diablo 411 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-BC356095  Pluchea Vincent Jones 1920-8-28 s.n. Contra Costa Orwood Comment
  CDA8487  Pluchea odorata D. G. Kelch, A. G. Murdock 2004-7-9 4 .311 Contra Costa Carquinez Strait Region; Pacheco Marsh. Pacheco Hill Marsh west of Pacheco Slough. Comment
  JEPS87903  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
  CAS-BOT-BC246644  Poa howellii John Thomas Howell 1933-5-14 11256 Contra Costa Hills east of St. Mary's College Comment
  UCD91129  Poa howellii P. B. Kennedy 1916-1 s.n. Contra Costa Pinehurst. Comment
  SEINET11695803  Poa secunda Unknown 1956-5-14 3387 Contra Costa 6.7 mi SW of city of Antioch, between old coal mining towns of Somersville & Nortonville Comment
  CAS-BOT-BC236384  Poa secunda subsp. secunda Mary L. Bowerman 1933-5-3 1984 Contra Costa Mount Diablo. [Indian Ceremonial] Canyon, a little below and across the stream from the spring 731 Comment
  UC691181  Poa secunda subsp. secunda Mary L. Bowerman 1932-4-27 1381 Contra Costa s face Oyster Ridge (canyon w of Riggs Canyon); Mt Diablo 335 Comment
  SEINET13947037 Image available Pogogyne Joseph Andorfer Ewan 1936-1 9694 Contra Costa W slope of Bald Peak, San Pablo Ridge Comment
  JEPS107077  Pogogyne serpylloides Barbara Ertter, Lisa Schultheis 1995-4-27 14017 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; head of west facing scrub-filled draw (east of golf-course). Comment
  UC691516  Pogogyne serpylloides Mary L. Bowerman 1931-5-21 876 Contra Costa Curry Canyon: Hard open flat by Olafson's barn 274 Comment
  UC691131  Polygonum amphibium Mary L. Bowerman 1935-7-22 3185 Contra Costa Hidden Pond Mount Diablo 518 Comment
  POM300597  Polygonum amphibium var. stipulaceum Mary L. Bowerman 1935-7-22 3185 Contra Costa Hidden Pond. 518 Comment
  CHSC116609  Polygonum aviculare Lowell Ahart; Josephine Guardino 2016-4-19 20782 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 1.4 miles northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  UC1818918  Polygonum lapathifolium Barbara Ertter 1995-8-19 14503 Contra Costa Edge of Cerrito Creek on north side of Albany Hill, south edge of El Cerrito; dense weeds at edge of sluggish water. Comment
  UC1478302  Polypodium Alan R. Smith with Tom Lemieux 1981-11-19 827 Contra Costa n slope Mt. Diablo (creekside ravine along North Gate Rd, 3.6 mi w of (below) Park HQ (South Gate Rd. junction)); Mt. Diablo State Park 640 Comment
  UC1478303  Polypodium Alan R. Smith with Tom Lemieux 1981-11-19 825 Contra Costa n slope Mt. Diablo (creekside ravine along North Gate Rd, 3.6 mi w of (below) Park HQ (South Gate Rd. junction)); Mt. Diablo State Park 640 Comment
  UC42882  Polypodium E. L. Greene 1892-3-20 Contra Costa Red Rock; Bay of San Francisco Comment
  CDA42732  Polypodium calirhiza A. G. Murdock 2003-2-21 71 Contra Costa Carquinez Strait Region; Martinez; on top of north-facing hill above train tunnel on Mt. Wanda. Comment
  JEPS79492  Polypodium calirhiza Edward Lee with Annetta Carter 1936-1-12 1709 Contra Costa canyon immediately s of Nortonville Comment
  JEPS79616  Polypodium calirhiza Edward Lee 1979-4-26 Contra Costa prospector's jeep trail Devil's Elbow; Mt. Diablo Comment
  RSA760664  Polypodium calirhiza William J. Ferlatte, L. Maynard Moe 1970-4-27 1235 Contra Costa San Francisco Bay, Red Rock Island. Comment
  SBBG689  Polypogon monspeliensis A. A. Beetle 1941-6-24 1750 Contra Costa Point Richmond on San Francisco Bay Comment
  UC50634  Polypogon monspeliensis Jos. Burtt Davy 1900-6-7 6672 Contra Costa near Martinez; near Martinez Comment
  CAS-BOT-BC232585  Polypogon monspeliensis R. E. Frenkel 1964-5-20 501 Contra Costa On CA Highway 21, Market Plaza Center, toward N half of lot, Alamo Comment
  JEPS102910  Polystichum Barbara Ertter with Susan D'Alcamo 1998-6-12 16194 Contra Costa E end of Bald Ridge Tail W of Prospectors Gap Mount Diablo Comment
  UC606764  Polystichum munitum Edward Lee 1936-4-19 1983 Contra Costa se slope of island Red Rock; San Francisco Bay Comment
  UC2027748  Populus fremontii subsp. fremontii Barbara Ertter 1996-11-24 15426 Contra Costa West side of Mount Diablo, Pine Pond along Stage Road in Pine Canyon. Comment
  CAS-BOT-BC105622  Populus trichocarpa Alice Eastwood 1915-6-21 4727 Contra Costa San Leandro Comment
  CDA33072  Potamogeton crispus D. G. Kelch 2010-10-5 10 .427 Contra Costa The Delta.; Antioch shoreline. West of Fulton shipyard. Comment
  UC2029168  Potamogeton pectinatus Barbara Ertter 2000-7-16 17399 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park. Comment
  CAS-BOT-BC143056  Potentilla anserina subsp. pacifica Walter Knight; J. Dean; B. Mortensen; R. Bensler; B. Atwater 1959-4-13 3361 Contra Costa Botany Cove. Brown's Island Comment
  CDA23062  Potentilla glandulosa D. G. Kelch, D. A. Weinstein 2008-4-25 8 .078 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
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Jan 7 2016
  CDA29217  Potentilla glandulosa D. G. Kelch 2006-5-7 9 .153 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  UCSC000363  Potentilla rivalis var. millegrana I. J. Condit 2008-8-19 s.n. Contra Costa Antioch Comment
  UC74103  Proserpinaca pectinata N. L. Gardner 1905-11-14 Contra Costa near Richmond Comment
  UC691124  Prunus subcordata Mary L. Bowerman 1932-4-9 1334 Contra Costa Mount Diablo, Muir Area Mount Diablo; , Muir Area Comment
  CDA26219  Prunus virginiana subsp. demissa A. G. Murdock, D. G. Kelch 2004-5-28 268 Contra Costa Carquinez Strait Region; Pinole Peak. Comment
  JEPS111736  Pseudognaphalium beneolens D. G. Kelch 2004-9-2 04 .345 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Steep road-cut. Alhambra Road. South of Green St. 3 Comment
  JEPS111702  Pseudognaphalium californicum D. G. Kelch 2004-4-26 04 .132 Contra Costa Point Pinole 8 Comment
  UC1795890  Pseudognaphalium californicum Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14636 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; along stream above stable, riparian vegetation. 91 Comment
  JEPS111754  Pseudognaphalium luteoalbum D. G. Kelch 2005-5-1 05 .185 Contra Costa Crockett - Edwards Canyon. 150 Comment
  UC1618328  Pseudognaphalium luteoalbum Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10701 Contra Costa w end of island n Pittsburg (near confluence of Sacramento and San Joaquin river opposite Pittsburg Marina); Browns Island Comment
  CAS-BOT-BC356972  Pseudognaphalium luteoalbum Walter Knight 1977-7-20 s.n. Contra Costa East Bay Regional Park District. On Briones Ridge at about 1,000 ft elev. Briones Regional Park 304 Comment
  SBBG103996  Pseudognaphalium microcephalum W. Knight, I. Knight 1977-7-25 Contra Costa Black Diamond Mines Regional Reserve, Nortonville town site 167 Comment
  UC691826  Pseudognaphalium stramineum Mary L. Bowerman 1938-9-17 3717 Contra Costa Johnny Walker Spring Mount Diablo, Johnny Walker Spring 731 Comment
  UC1795802  Pseudognaphalium stramineum Barbara Ertter, Rich Rabeler 1994-6-6 12817 Contra Costa Point Isabel in south Richmond; black cinders on old railroad bed north of Costco; landfill. Comment
  UC1584826  Pseudognaphalium thermale Jerry Powell Jul 14 1987-Jul 30 1987 1505 Contra Costa Point Molate Beach Point Molate Beach (chaparral and grassy meadow on bluffs above Bay edge) Comment
  POM138972  Ptelea baldwinii subsp. crenulata A. D. E. Elmer 1903-05 4327 Contra Costa Mount Diablo. Comment
  POM278390  Ptelea baldwinii subsp. crenulata Lyman D. Benson 1931-3-18 2668 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  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-BC148639  Ptelea crenulata W. L. Jepson 1918-6-5 7603 a Contra Costa Mt. Diablo, Donner Canyon Comment
  UC1277976  Ptelea crenulata B. Crampton 1957-7-9 4273 Contra Costa 2-3 mi nw Martinez (slopes above the Carquinez Straits) Comment
  UC17377  Ptelea crenulata Ivar Tidestrom Jun 1895 Contra Costa Edwards Canyon Comment
  UC579884  Ptelea crenulata Annetta Carter 1935-6-1 868 Contra Costa ridge on w side of peak Mount Diablo 1036 Comment
  SBBG3977  Ptelea crenulata J. M. Tucker 1941-8-28 383 Contra Costa Curry Cyn, 3 mi S of jct of Curry Cyn Rd with Clayton-Byron Rd Comment
  JEPS111935  Pteridium aquilinum A. G. Murdock 2004-4-30 244 Contra Costa Vaca Canyon On north side of road along creek 165 Comment
  UC1948933  Pteridium aquilinum var. pubescens William J. Ferlatte, L. Maynard Moe 1970-4-27 1246 Contra Costa San Francisco Bay: Red Rock Island Comment
  UCD100927  Pterostegia drymarioides P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  RSA0068501  Pterostegia drymarioides Katie Gallagher, Nick Jensen 2014-4-26 173 Contra Costa Las Trampas Regional Wilderness. 365 Comment
  CAS-BOT-BC239827  Puccinellia simplex Niall McCarten; V. I. Dains 1986-6-1 03261200 9 Contra Costa (Highline reach 12-15) near Brushy Cr., empties into Clifton Ct. Forebay Comment
  UC2028108  Pyracantha fortuneana Barbara Ertter with Christopher Baysdorfer 1998-5-10 16115 Contra Costa Lime Ridge Open Space northwest of Mount Diablo. Comment
  UC1748009  Quercus E. Dean, M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 656 Contra Costa Fossil Ridge, just below and 0.1 mi along fire rd that begins at the parking lot SE of Rock City and climbs onto Fossil Ridge in southeasterly direction Mount Diablo State Park 487 Comment
  CAS-BOT-BC104164  Quercus X morehus John Thomas Howell 1925-10-11 1503 Contra Costa Chaparral, Moraga Ridge, Oakland Hills Comment
  UC691316  Quercus X morehus Mary L. Bowerman 1931-9-27 1048 Contra Costa ne side North Peak; Mount Diablo Comment
  RSA0026181  Quercus X morehus Barbara Ertter, Tony Morosco 1996-7-27 15038 Contra Costa North side Mount Diablo, Wasserman Trail below Cardinet Oaks Road. Comment
  CAS-BOT-BC45658  Quercus agrifolia Walter Knight 1965-3-1 981 Contra Costa Antioch Dunes Comment
  UCD45098  Quercus agrifolia John M. Burns 1959-3-4 s.n. Contra Costa Sand dunes along south side of San Joaquin River, just east of Antioch, Contra Costa County, California. Comment
  UC691305  Quercus berberidifolia Mary L. Bowerman 1933-9-9 2439 Contra Costa w of Frog Pond; Mount Diablo Comment
  UC691318  Quercus berberidifolia Mary L. Bowerman 1933-6-7 2258 Contra Costa North Peak Ridge Mount Diablo 1021 Comment
  CAS-BOT-BC62696  Quercus chrysolepis L. R. Abrams 1910-10-8 435 Contra Costa Mt. Diablo summit 1158 Comment
  UC1135389  Quercus chrysolepis R. W. Lundh 1933-3-13 212 Contra Costa 0.75 mi nw Pinehurst; Concord Quad. 304 Comment
  UC1135397  Quercus chrysolepis R. C. Wilson 1935-3-28 155 Contra Costa Top of Mt. Diablo Mt. Diablo Quad. 1158 Comment
  UC521666  Quercus douglasii Joseph Andorfer Ewan 1933-10-15 8028 Contra Costa Mt. Diablo 1066 Comment
  UCD45684  Quercus douglasii John M. Tucker 1941-8-28 385 Contra Costa Beside road up Curry Canyon, 6 miles south of junction with the road from Clayton to Byron, Contra Costa County, California. Comment
  UCD45689  Quercus douglasii G. L. Stebbins, jr. 1945-10-14 3590 Contra Costa Northeast side of Mt. Diablo. Beside barn on road to old quicksilver mine. 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
  CAS-BOT-BC86123  Quercus dumosa Mary L. Bowerman 1932-9-17 1584 Contra Costa Mount Diablo. Donner Canyon, west fork: Bank between forks 304 Comment
  UC5581  Quercus durata F. W. Bancroft 1894-7-10 Contra Costa half-way up Mt. Diablo Comment
  UC691323  Quercus durata Mary L. Bowerman 1931-5-19 869 Contra Costa Donner Canyon trail Mount Diablo 274 Comment
  OBI14287  Quercus durata var. durata H. E. McMinn 22-Oct 408 Contra Costa Mitchell Cyn-Mt. Diablo Comment
  UC691276  Quercus garryana Mary L. Bowerman 1931-8-29 1035 Contra Costa Fossil Ridge Mount Diablo Comment
  CAS-BOT-BC94291  Quercus garryana Mary L. Bowerman 1930-10-19 493 Contra Costa Fossil Ridge S of Garden of the Gods Comment
  JEPS111966  Quercus ilex D. G. Kelch 2005-5-13 05 .237 Contra Costa Martinez Martinez. South of oil refinery along Railroad tracks in fragment of habitat 28 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
  UC848107  Quercus lobata Lewis S. Rose 1938-10-28 38306 Contra Costa 6 mi e Clayton; Marsh Creek 152 Comment
  SEINET12034643  Quercus lobata L. S. Rose 1938-1 38306 Contra Costa Marsh Creek,6 mi E of Clayton 152 Comment
  SEINET12034644  Quercus lobata M. T. Doutt 1930-1 81 Contra Costa Marsh Creek,6 mi E of Clayton Comment
  SEINET9356036  Quercus lobata Unknown 1938-10-28 Contra Costa Marsh Creek, 6 mi E of Clayton. Canyon bottom. Comment
  CAS-BOT-BC104710  Quercus wislizeni Mary L. Bowerman 1930-7-7 287 Contra Costa Mount Diablo. Summit Comment
  UC1135847  Quercus wislizeni R. W. Lundh 1932-8-17 133 Contra Costa 1 mi e Round Valley; Mt. Diablo Quad. 518 Comment
  UC1748014  Quercus wislizeni E. Dean with B. Ertter, J. M. Tucker, K. Chaney 2000-9-10 651 Contra Costa El Sobrante Ridge, upslope of the terminus of Heavenly Ridge Rd., jct of Heavenly Ridge Trail and Manzanita Trail El Sobrante 213 Comment
  UC691292  Quercus wislizeni Mary L. Bowerman 1933-9-30 2448 Contra Costa e end Meridian Flat (e of Pioneer Camp); Mount Diablo 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-BC104712  Quercus wislizeni Alice Eastwood 1921-8-6 11043 Contra Costa Mt. Hamilton Comment
  UC691290  Quercus wislizeni var. frutescens Mary L. Bowerman 1931-4-25 777 Contra Costa Mount Diablo Comment
  UC35844  Rafinesquia californica F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  UC691446  Rafinesquia californica Mary L. Bowerman 1930-6-14 327 Contra Costa little below summit Meridian Peak; Mount Diablo, little below summit of Meridian Peak Comment
  UC92077  Rafinesquia californica E. L. Greene 1886-5-24 Contra Costa Mount Diablo Comment
  CAS-BOT-BC362445  Rafinesquia californica Brandegee No date on label s.n. Contra Costa Mt Diablo 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
  UC691952  Ranunculus aquatilis Mary L. Bowerman 1933-3-18 1754 Contra Costa Hidden Pond Mount Diablo Comment
  UC9372  Ranunculus aquatilis Harley P. Chandler 1901-4-5 973 Contra Costa Mt. Diablo Comment
  POM270021  Ranunculus aquatilis var. capillaceus Mary L. Bowerman 1933-3-18 1754 Contra Costa Pool W of Turtle Rock (can be seen from top of rock) covering a considerable area of the bottom of the dried up pool Comment
  SBBG33501  Ranunculus aquatilis var. diffusus A. D. E. Elmer -May-1903 Contra Costa Mount Diablo Comment
  CDA24309  Ranunculus californicus D. G. Kelch, A. G. Murdock 2005-4-15 5 .138 Contra Costa Rodeo Creek. Comment
  UC1300986  Ranunculus californicus Helen K. Sharsmith 1962-3-25 4912 Contra Costa hills between Happy Valley and Alhambra Valley; San Francisco Bay Region 304 Comment
  JEPS60666  Ranunculus californicus W. L. Jepson 1923-4-22 9871 Contra Costa Mt. Diablo; deep canyon side Comment
  POM268439  Ranunculus californicus Mary L. Bowerman 1935-5-22 3048 Contra Costa Eagle Point ridge, canyon at N end which heads into saddle W of Twin Peaks. 427 Comment
  UCSB39437  Ranunculus californicus Fritzke, Sue 1980-3-1 Contra Costa Hills behind Walnut Heights Elementary School, off of Walnut Blvd 1 mile east of intersection with Walker Rd. 124 Comment
  POM268457A  Ranunculus canus Mary L. Bowerman 1931-3-21 587 Contra Costa Sycamore Canyon: semi shady grassy spot, alt 1100ft. Contra Costa County 335 Comment
  UC2028159  Ranunculus canus Barbara Ertter 1998-4-4 15952 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, south of Indian Valley School. Comment
  POM268694  Ranunculus canus var. laetus Jos. Burtt Davy 1895-4-7 925 Contra Costa Antioch Comment
  UC854399  Ranunculus hebecarpus Lewis S. Rose 1940-4-11 40180 Contra Costa 6 mi se Clayton; Marsh Creek 60 Comment
  NY353467  Ranunculus hesperoxys E. L. Greene 1887-4-16 s.n. Contra Costa Comment
  SEINET9161829  Ranunculus lobbii B. Ertter, D. Gowen 2006-3-1 18665 Contra Costa Upper San Leandro Reservoir Watershed (EBMUD) S of Moraga, along SE end of Rocky Ridge Road as it drops to King Canyon Road. 180 Comment
  SD48397  Ranunculus occidentalis G. R. Campbell 1956-4-6 17 Contra Costa Between Round Top and summit of Mt. Diablo 305 Comment
  SEINET11268259  Ranunculus occidentalis Barbara Ertter, Dan Norris 2001-4-15 17607 Contra Costa Alamo Trail.; 0 213 Comment
  UC2027957  Ranunculus sceleratus Barbara Ertter with Joanne Kerbavaz 2000-8-20 17499 Contra Costa South side Mount Diablo, spring feeding Chase Pond. Comment
  CAS-BOT-BC74269  Raphanus sativus Walter Knight 1965-3-1 908 Contra Costa Antioch Dunes. Comment
  UC407038  Raphanus sativus Ira L. Wiggins 1930-4-18 4610 Contra Costa Jersey Island Comment
  UC650429  Raphanus sativus Ira L. Wiggins 1930-4-18 4610 Contra Costa Jersey Island Comment
  CDA29170  Rhamnus alaternus D. G. Kelch 2008-6-1 8 .219 Contra Costa Carquinez Strait; Rodeo Shore. Comment
  UC692600  Rhamnus californica Mary L. Bowerman 1935-6-21 3147 Contra Costa Arroyo del Cerro, e fork Mount Diablo 274 Comment
  UC420524  Rhamnus tomentella subsp. tomentella Milo S. Baker 1904-6-24 Contra Costa near Mt. Diablo summit; Mt. Diablo, Pine Creek Canyon Comment
  UC692602  Rhamnus tomentella subsp. tomentella Mary L. Bowerman 1933-1-7 1687 Contra Costa Perkins Canyon, by dirt road Mount Diablo Comment
  UC692576  Rhus trilobata Mary L. Bowerman 1935-5-30 3092 Contra Costa Eagle Point Ridge; Mount Diablo 350 Comment
  JEPS104681  Ribes John L. Morrison 1937-4-11 2101 Contra Costa Along a small tributary running into Wildcat Creek, about 1 mi below the C.C.C Camp Comment
  JEPS75496  Ribes californicum P. F. York 1974-2-3 107 Contra Costa 1.4 km. s Bear Creek Road (on Hampton Road, N of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  SD2125  Ribes californicum Earle Mulliken 1905-1-28 161 Contra Costa Wildcat CaA'on, Berkeley Hills. Comment
  UC570838  Ribes californicum Herbert L. Mason 1926-3-7 2709 Contra Costa Summit Mt. Diablo Comment
  CAS-BOT-BC92920  Ribes californicum var. californicum John Thomas Howell 1931-2-21 5730 Contra Costa North side of Mount Diablo. Comment
  UC2027990  Ribes divaricatum var. pubiflorum Barbara Ertter 1998-4-19 16028 Contra Costa Tilden Regional Park, Wildcat Creek Trail to Jewel Lake. Comment
  CAS-BOT-BC168924  Ribes malvaceum John Thomas Howell 1923-11-12 243 Contra Costa Mt. Diablo Comment
  JEPS79400 Image available Ribes malvaceum Edward Lee with C. Belshaw 1935-12-28 1701 Contra Costa w end Las Trampas Ridge 426 Comment
  SBBG26906  Ribes malvaceum A. Eastwood, J. T. Howell 1936-4-19 Contra Costa Nortonville Comment
  UC69254  Ribes malvaceum H. M. Hall 1901-4-5 1753 Contra Costa Mt. Diablo Region of San Francisco Bay 1005 Comment
  UC692668  Ribes malvaceum Mary L. Bowerman 1930-6-18 354 Contra Costa Mount Diablo 822 Comment
  JEPS116868  Ribes menziesii David Gowen 2007-9-1 790 Contra Costa Huckleberry Regional Preserve. Along trail descending to canyon bottom near trail junction above creek. Comment
  UC697163  Rigiopappus leptocladus Mary L. Bowerman 1933-5-8 2016 Contra Costa n side near crest Fossil Ridge; Mount Diablo, n side near crest Fossil Ridge Comment
  POM301018  Rigiopappus leptocladus Mary L. Bowerman 1933-5-8 2016 Contra Costa Fossil Ridge near crest, on north side by side road; Mount Diablo. Comment
  UC1795706  Rigiopappus leptocladus Barbara Ertter, Susan D'Alcamo 1994-4-24 12463 Contra Costa Mount Diablo east Walnut Creek, Bald Ridge Trail above Murchio Gap 762 Comment
  SD62209  Romneya trichocalyx Helen Beard 1965-1-20 Contra Costa From L.L. Edmunds Native Plant Nursery, Danville, Contra Costa County, California. Original place of collection not known. University of California Botanical Garden 50.1640. Comment
  JEPS111864  Rorippa nasturtium-aquaticum D. G. Kelch 2004-4-24 04 .98 Contra Costa Ca ada del Cierbo Upper Ca ada de Cierbo on fire road to cow barn along Cummings Skyway 70 Comment
  CAS-BOT-BC147407  Rosa californica Peter H. Raven 1957-7-5 11053 Contra Costa Point Isabel Comment
  CAS-BOT-BC147408  Rosa californica L. R. Abrams 1916-6-30 5710 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC147409  Rosa californica Walter Knight; Joanne Dean 1978-8-14 3180 Contra Costa Browns Island Comment
  UCD113415  Rosa californica John Thomas Howell; Gordon H. True 1972-6-29 48930 Contra Costa Byron Hot Springs Road, SE of Byron. Comment
  CAS-BOT-BC147411  Rosa californica Mary L. Bowerman 1931-5-13 841 Contra Costa Pine Canyon one mile above the Sulphur Spring Comment
  UC555647  Rosa gymnocarpa Herbert L. Mason 1924-11-23 1161 Contra Costa Cashion Creek Las Trampas Ridge Comment
  UC2028227  Rosa spithamea Barbara Ertter 1998-12-6 16470 Contra Costa Rock City area on southwest side Mount Diablo. Comment
  LA208234  Rubus parviflorus Joseph Andorfer Ewan; 1936-5-3 9499 Contra Costa Wildcat Creek near Arinda road bridge Comment
  CAS-BOT-BC147359  Rubus pensilvanicus Walter Knight; B. Mortensen; B. Atwater; R. Bensler; J. Dean 1979-4-13 3369 Contra Costa Alder Point. Browns Island Comment
  CAS-BOT-BC158774  Rubus ursinus Roxana S. Ferris 1924-4-13 4079 Contra Costa Mitchell Canyon, Mt. Diablo Comment
  JEPS112090  Rubus ursinus D. G. Kelch 2004-5-7 04 .199 Contra Costa Ca ada del Cierbo 40 Comment
  UC12996  Rubus ursinus W. H. Brewer 1862-5-17 1107 Contra Costa Canyon n Monte Diablo; Canyon n of Monte Diablo Comment
  UC2032842  Rubus ursinus Doran, Andrew Scott 2012-3-20 713 Contra Costa North east side of Brooks Island Comment
  RSA0033845  Rumex conglomeratus Barbara Ertter 2000-7-16 17380 Contra Costa Diablo Foothills Regional Park, along Pine Creek between Castle Rock Recreation Area and flood-control checkdam. 106 Comment
  UC692167  Rumex conglomeratus Mary L. Bowerman 1930-8-24 420 Contra Costa Mitchell Canyon Mount Diablo Comment
  UC2029192  Rumex conglomeratus Barbara Ertter 2000-7-16 17380 Contra Costa Diablo Foothills Regional Park, riparian strip along Pine Creek between Castle Rock Regional Recreation Area Comment
  UC650557  Rumex crispus Ira L. Wiggins 1930-4-18 4605 Contra Costa Jersey Island Comment
  CDA29534  Rumex pulcher D. G. Kelch, Troy MacGregor 2009-5-1 9 .281 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  JEPS99968  Rumex pulcher G. Smick 2003-5-10 GAS 206 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD101458  Rumex pulcher G. Thomas Robbins; John Weiler 1959-5-23 4032 Contra Costa About 1/2 mile east of Pt. San Pablo, overlooking San Pablo Bay, Richmond. 7 Comment
  JEPS107084  Rumex salicifolius var. crassus Barbara Ertter, Brad Olson 1994-5-7 12762 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge. Edge of San Francisco Bay. Comment
  CDA42433  Rupertia physodes D. G. Kelch 2012-5-27 12 .073 Contra Costa Carquinez Strait Region; Pinole Valley Park. Comment
  JEPS100112  Rupertia physodes A. Langston 2003-6-12 AL 41 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS121055  Rupertia physodes Dean G. Kelch and Andrew G. Murdock 2004-5-9 042 .12 Contra Costa Crockett - Bull Valley Comment
  OBI78191  Rupertia physodes Joseph Andorfer Ewan 1934-4-8 8752 Contra Costa S Fk. Marsh Creek, Mt. Diablo 244 Comment
  UC2028160  Sagina apetala Barbara Ertter 1998-4-4 15948 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, SE of Indian Valley School. Comment
  SEINET10946617 Image available Sairocarpus elmeri Adolph D. E. Elmer Elmer 4809 Contra Costa Comment
  UC768753  Salicornia virginica R. F. Hoover 1937-8-31 2706 Contra Costa Byron Hot Springs Comment
  UC69365  Salix Wm. W. Mott 1905-1-10 Contra Costa near Berkeley (n.e. corner of San Pablo Ave. & McAvoy Lane, opposite 7 Mile House) Comment
  CAS-BOT-BC129912  Salix bonplandiana Ira L. Wiggins 1930-4-18 4601 Contra Costa Levee banks, Jersey Island. Comment
  UC691922  Salix exigua var. hindsiana Mary L. Bowerman 1936-5-6 3412 a Contra Costa Mitchell Canyon Mt. Diablo, Mitchell Canyon 152 Comment
  POM181448  Salix gooddingii I. L. Wiggins 1930-4-18 4591 Contra Costa Jersey Island. Comment
  CAS-BOT-BC104085  Salix hindsiana Mary L. Bowerman 1936-5-6 3412 a Contra Costa Mitchell Canyon 152 Comment
  SEINET3158569  Salix laevigata H. P. Chandler 1901-3-22 858 Contra Costa Pacheco Comment
  UC650582  Salix laevigata Ira L. Wiggins 1930-4-18 4601 Contra Costa levee banks Jersey Island Comment
  UC692053  Salix laevigata Mary L. Bowerman 1935-10-26 3348 Contra Costa creek bottom at road junction Mt. Diablo 640 Comment
  JEPS77014  Salix lasiolepis Robert M. Lloyd 1963-3-17 2141 Contra Costa 0.5 mi e of intersection of Grizzly Peak Rd. and Skyline Drive (on Skyline (across from 7090 Skyline), Huckleberry trail) Comment
  OBI70551  Salix lasiolepis D. G. Kelch, D. A. Weinstein 2008-4-25 8 .087 Contra Costa Alvarado Park (W end of Wildcat Canyon Park) 122 Comment
  UC1196651  Salix lasiolepis Joseph P. Tracy 1932-9-10 10785 Contra Costa Rodeo Creek Northern Coast Ranges (on Franklin Canyon Rd.) 60 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
  CAS-BOT-BC129561  Salix lasiolepis var. lasiolepis Alice Eastwood 1914-2-24 3726 Contra Costa Antioch Comment
  CAS-BOT-BC129555  Salix lasiolepis var. lasiolepis Mary L. Bowerman 1932-8-27 1519 Contra Costa Spring south of Turtle Rock (by a large group of willows) - Mount Diablo Comment
  RSA739938  Salsola tragus P. Akers 2003-10-7 B- 107 Contra Costa Contra Costa water district, E edge of Discovery Bay on Hwy 4. 8 Comment
  JEPS62658  Salvia columbariae W. L. Jepson 1922-5-23 9661 Contra Costa Mt. Diablo San Francisco Bay (vicinity of San Francisco Bay) Comment
  SBBG29850  Salvia columbariae L. S. Rose 1935-5-16 Contra Costa Mt Diablo Comment
  UCD102380  Salvia columbariae Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 1050 Comment
  JEPS100053  Salvia mellifera G. Smick 2003-3-27 GAS 94 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC883961  Salvia mellifera Lewis S. Rose 1941-3-22 41057 Contra Costa w slope Mt. Diablo 609 Comment
  RSA0068492  Salvia mellifera Katie Gallagher, Nick Jensen 2014-4-26 182 Contra Costa Las Trampas Regional Wilderness. 365 Comment
  UC2029120  Salvia spathacea Barbara Ertter 2000-10-26 17549 Contra Costa west side Mount Diablo, Stage Road in lower Pine Canyon, on top of steep cut on west side of road opposite Castle Rock. Comment
  CAS-BOT-BC238634  Sambucus nigra subsp. caerulea Barrett Anderson 1987-4-30 3487 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  UCSB4634  Sanicula bipinnata Kamb, Peter; Chisaki, Francia 1950-3-18 Contra Costa Head of Pine Canyon, Mt. Diablo 533 Comment
  JEPS111611  Sanicula bipinnatifida D. G. Kelch 2004-3-5 04 .6 Contra Costa Martinez - Rankin Open Space 56 Comment
  UCD127942  Sanicula bipinnatifida P. B. Kennedy 1914-3-15 4624 Contra Costa Sunset Cemetery. Comment
  UC2062644  Sanicula bipinnatifida Barbara Ertter with Dan Norris 2001-4-8 17588 Contra Costa Lime Ridge Open Space east of Walnut Creek. Comment
  RSA0033930  Sanicula crassicaulis Barbara Ertter, Richard K. Brummitt 1998-5-6 16087 Contra Costa Lower Donner Canyon Road on north base of Mount Diablo, ca. 1/2 miles south of Donner cabin site. 304 Comment
  UC1948950  Sanicula crassicaulis William J. Ferlatte, L. Maynard Moe 1970-4-27 1226 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC566856  Sanicula crassicaulis H. L. Mason 1928-4-13 4305 Contra Costa Richmond Waterfront Comment
  UC194920  Sanicula saxatilis H. M. Hall 1916-5-31 10136 Contra Costa along east crest of Mount Diablo Mount Diablo 1158 Comment
  UC2028089  Sanicula saxatilis Barbara Ertter, Tony Morosco 1998-4-12 15996 Contra Costa Base of Mount Olympia on north side of Mount Diablo, talus above quarry NE of Olympia Trail. Comment
  JEPS98659  Sanicula tuberosa O. Gomez, L. Schulties and P. Vargas 1996-5-29 43 PV96 Contra Costa trail between Mt. Diablo Peak and North Peak Mt. Diablo State Park Comment
  UCD102394  Sanicula tuberosa Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Bald Ridge Trail. Bald Ridge. 880 Comment
  UC2028179  Sanicula tuberosa Barbara Ertter 1998-5-3 16039 Contra Costa SW fork of Pine Creek between Pine Ridge and Wall Point Ridge, southwest base of Mount Diablo. Comment
  JEPS68967  Saxifraga californica Edward Lee 1935-3-10 1300 Contra Costa s watershed of Kirker Creek (Nortonville); , Kirker Creek Comment
  UC1614337  Saxifraga californica Charles M. Belshaw 1935-3-3 371 Contra Costa in line with Grizzley Peak (opposite Dairy Ranch, on ne slope of San Pablo Reservoir, Berkeley Hills); Berkeley Hills, San Pablo Reservoir 487 Comment
  SEINET3819166 Image available Saxifraga virginiensis var. californica Lewis S. Rose 1932-3-26 32108 Contra Costa Nortonville. 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
  UC2070487  Schoenoplectus acutus var. occidentalis Barbara Ertter 2002-11-11 18077 Contra Costa Round Valley Regional Preserve east of Mount Diablo. Comment
  CAS-BOT-BC111485  Schoenoplectus americanus Walter Knight 1977-6-10 s.n. Contra Costa Black Diamond Regional Preserve. Sand Creek, near coal mining site of Stewartville 158 Comment
  SEINET10319578  Schoenoplectus americanus W. Knight 1977-6-10 s.n. Contra Costa Sand Creek near coal-mining site of Stewartville 158 Comment
  CAS-BOT-BC111462  Schoenoplectus californicus LeRoy Abrams 1916-7-29 6305 Contra Costa Martinez Comment
  JEPS111885  Scirpus acutus D. G. Kelch 2003-8-13 03 .106 Contra Costa Martinez Marsh 0 Comment
  JEPS111892  Scirpus californicus D. G. Kelch 2004-6-6 04 .229 Contra Costa Martinez - Train Station Downtown Martinez. Alhambra Creek near bay and railroad Station 2 Comment
  CDA39108  Scirpus californicus T. C. Fuller 1964-11-6 12808 Contra Costa Northeast side of Bethel Island. 0 Comment
  UCD50099  Scirpus californicus B. Crampton 1950-7-29 625 Contra Costa 1 mile north of Richmond, Contra Costa Co. Comment
  CDA15249  Scirpus maritimus G. F. Hrusa, D. Crowe 1998-5-8 14380 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  CDA32272  Scirpus maritimus G. F. Hrusa, D. Crowe 1998-5-8 14366 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg. Comment
  CDA39144  Scirpus microcarpus D. G. Kelch 2003-4-13 3 .137 Contra Costa Carquinez Strait; Pinole Creek. Comment
  CAS-BOT-BC240009  Scribneria bolanderi John Thomas Howell 1953-3-15 28924 Contra Costa Rock City, Mt. Diablo Comment
  JEPS116695  Scribneria bolanderi David Gowen 2006-5-19 580 Contra Costa Mount Diablo; Knobcone Point Rd. east of powerline, near unnamed dirt road west of Cave Point. Comment
  UC1606441  Scutellaria californica Barbara Ertter 1993-6-25 11905 Contra Costa 1/4 mi s of Tilden miniature steam trains (head of Siesta Valley, Skyline Trail); Oakland-Berkeley Hills, Skyline Trail, Siesta Valley 457 Comment
  JEPS62851  Scutellaria tuberosa W. L. Jepson May 23 1891-May 24 1891 14938 Contra Costa Mount Diablo Comment
  UC1713665  Scutellaria tuberosa C. Epling, D. Stebbins 1940-5-4 Contra Costa Moraga Ridge Comment
  UC1713668  Scutellaria tuberosa unknown 1027 Contra Costa Walnut Creek Comment
  RSA0055044  Scutellaria tuberosa Jim Shevock 1971-4-7 916 Contra Costa Mt. Diablo St. Park. 548 Comment
  CAS-BOT-BC59075  Sedum spathulifolium Mrs. C. E. Sutcliffe 1920-5-30 s.n. Contra Costa Mt. Diablo. Comment
  UC1606305  Senecio aronicoides Barbara Ertter, Chris Thayer 1993-5-7 11702 Contra Costa ca 1/2 mi n Vollmer (=Bald) Peak (in East Bay Municipal Utilities District land e of Tilden Park, just below ridge on ne-facing slope) 457 Comment
  CAS-BOT-BC327446  Senecio flaccidus var. douglasii Alice Eastwood 1914-2-24 3736 Contra Costa Antioch Comment
  JEPS37621  Senecio sylvaticus W. L. Jepson 1921-5-22 9201 Contra Costa Mt. Diablo, summit Mt. Diablo 1173 Comment
  JEPS111692  Senecio vulgaris D. G. Kelch 2004-3-13 04 .37 Contra Costa Pinole Valley Pinole Valley Park between Pinole Valley Road and El Sobrante Ridge 36 Comment
  CAS-BOT-BC80265  Sequoia sempervirens John Thomas Howell 1925-10-11 1500 Contra Costa Moraga Ridge, Oakland Hills Comment
  NY64466  Sequoia sempervirens L. S. Rose 1934-1-29 34009 Contra Costa Redwood Canyon Comment
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Apr 14 2010
  UC1050201  Sequoia sempervirens N. Floy Bracelin 1942-12-13 1712 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1543053  Sequoia sempervirens Donald G. Nelson 1938-11-6 583 Contra Costa w Moraga (e slope of ridge below water storage tank); Moraga Ridge Comment
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Jan 25 2008
  UC160893  Sequoia sempervirens V. King Chestnut 1888-2-22 Contra Costa Moraga Valley Comment
  CAS-BOT-BC80263  Sequoia sempervirens Paul F. Covel 1938-2-20 s.n. Contra Costa Pinehurst Comment
  CDA33621  Sesbania punicea Lepando 2010-7-14 PDR# 1645158 Contra Costa Concord; Rancho Diablo Clubhouse, 355 Vista Grande 0 Comment
  CAS-BOT-BC243541  Setaria parviflora John Thomas Howell; Gordon H. True 1972-6-29 48933 Contra Costa Along ditches on Byron Hot Springs Road southeast of Byron Comment
  RSA0029367  Setaria viridis Barbara Ertter, Mary Bowerman, Lisa Schultheis 1996-7-5 14921 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  UC1819035  Sherardia arvensis Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14243 Contra Costa South side Mount Diablo, Sloan Road between Curry Point and Curry Canyon, roadside in partial shade of oak forest on north-facing slope. 487 Comment
  RSA720804  Sherardia arvensis Barbara Ertter, Mary Bowerman, Lisa Schultheis 1995-3-31 13941 Contra Costa Mount Diablo State Park. Lower end of Mitchell Canyon S of Clayton. 183 Comment
  UCR6068  Sidalcea malviflora Charles Prentiss 1966-4-5 07 Contra Costa San Francisco Bay Region, Tilden Park at Indian Camp, E facing slope across from tennis courts 168 Comment
  UC1300823  Sidalcea malviflora subsp. laciniata Helen K. Sharsmith 1962-4-7 4917 Contra Costa Appian Way near El Sobrante; San Francisco Bay Region, nr El Sobrante 121 Comment
  CAS-BOT-BC384441  Silene antirrhina Kellogg No date on label s.n. Contra Costa Mt Diablo Comment
  CDA31177  Silene gallica D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .219 Contra Costa Mt. Diablo. Knobcone Point Rd. 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
  UC692654  Silene gallica Mary L. Bowerman 1931-4-4 636 Contra Costa two mi by road from North Gate (Mount Diablo); , two mi from North Gate Comment
  JEPS100172  Silybum marianum G. Smick 2003-5-15 GAS 193 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1126829  Sinapis arvensis C. M. Belshaw 1936-5-13 2120 Contra Costa se of Deer Valley Deer Valley 91 Comment
  UC691260  Sinapis arvensis Mary L. Bowerman 1932-3-6 1106 Contra Costa immediately n of Blackhawk Ranch (Mount Diablo, Sycamore Canyon); Mount Diablo, Sycamore Canyon Comment
  CDA3865  Sisymbrium altissimum R. DeBoer, J. Moon 1961-4-18 Contra Costa Railroad yard, 101 Garrard Boulevard, Richmond. 0 Comment
  JEPS100077  Sisymbrium officinale A. Langston 2003-6-19 AL 49 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC75380  Sisymbrium orientale Walter Knight 1978-5-1 s.n. Contra Costa Contra Loma Regional Park, 6 miles south of San Joaquin River. 68 Comment
  UC905257  Smilacina stellata J. A. Rattenbury 1948-3-8 94 Contra Costa 1/2 mi e Oakland Tunnel (n-facing slope on s side of hwy above creek) 213 Comment
  CAS-BOT-BC314195  Solanum californicum M. Boone 1981-4-19 020 Contra Costa Mt. Diablo State Park along roadside ca. 3 miles up on N. Gate Rd. Comment
  NY853874  Solanum umbelliferum M. L. Bowerman 1975-5-11 s.n. Contra Costa Mount Diablo. Back Creek. Comment
  POM204481  Solanum umbelliferum J. T. Howell 1933-5-14 11291 Contra Costa Hills east of St. Mary's college Comment
  JEPS111655  Solidago velutina subsp. californica A. G. Murdock 2003-9-12 198 Contra Costa Selby Along trail to Superfund overlook 40 Comment
  UCD163099  Solidago velutina subsp. californica Robert E. Preston 2014-5-28 2966 Contra Costa Morgan Territory, 3 mi SW of Los Vaqueros Reservoir. 290 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
  UC2028128  Soliva sessilis Barbara Ertter with Richard K. Brummitt 1998-5-6 16080 Contra Costa Base of Mitchell Rock Trail on north base of Mount Diablo. Comment
  CAS-BOT-BC365985  Sonchus asper John Thomas Howell 1933-5-14 11248 Contra Costa Hills east of St. Mary's College Comment
  UC650555  Sonchus oleraceus Ira L. Wiggins 1930-4-18 4608 Contra Costa Jersey Island Comment
  UCD146721  Sonchus tenerrimus G. F. Hrusa; D. Crowe 1998-5-8 14376 Contra Costa Sacramento-San Joaquin River Delta. On Dow Chemical property at Pittsburg. Adjacent to shore of San Joaquin River. 2 Comment
  UC697186  Sorghum Mary L. Bowerman 1940-1 3836 Contra Costa Mt. Diablo, Wall Point trail Comment
  UCD92659  Sorghum halepense Beecher Crampton 1970-3-10 8540 Contra Costa Vasco Road S of Brentwood. Comment
  CAS-BOT-BC236643  Spartina patens Rolf Mall 1964-11-19 s.n. Contra Costa Southamton tidal marsh at head of Suisun Bay between Benicia and Vallejo Comment
  CAS-BOT-BC390054  Spergularia Alice Eastwood 1923-4-28 11668 Contra Costa Byron Springs Comment
  SD131825  Spergularia macrotheca var. longistyla Barbara Ertter, Jim Jokerst and Dave Magney 1989-4-5 8113 Contra Costa Alkali sink west and adjacent to Clifton Court Forebay. Comment
  UCR265178  Spergularia macrotheca var. macrotheca Barbara Ertter 1990-10-14 9661 Contra Costa San Francisco Bay Region, Point Isabel Regional Shoreline on San Francisco Bay in southwest El Cerrito, bare weedy flat above rocks on west shoreline 5 Comment
  RSA0098749  Spergularia macrotheca var. macrotheca Barbara Ertter 1990-10-14 9661 Contra Costa Point Isabel Regional Shoreline on San Francisco Bay in SW El Cerrito. Comment
  UC2070546  Spergularia marina Barbara Ertter with David Gowen and Michael Park 2017-5-2 22811 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road Comment
  SFV1240  Spergularia marina J. M. Tucker 1963-4-12 3687 Contra Costa West side of Holey Road, 3 miles southeast of Byron. Comment
  CAS-BOT-BC390536  Spergularia media Lewis S. Rose 1941-3-17 41034 Contra Costa 3 mi. s. of Byron 6 Comment
  RSA0028903  Spergularia rubra Barbara Ertter, Dan Norris 1999-11-14 16852 Contra Costa Black Diamond Mines Regional Preserve, south of parking area for Somersville townsite. Comment
  JEPS111784  Spergularia villosa D. G. Kelch 2004-4-26 04 .141 Contra Costa Point Pinole 1 Comment
  UC1618136  Spergularia villosa Barbara Ertter with Chris Thayer and Dianne Lake 1996-5-16 14680 Contra Costa w of Richmond (Point Molate Naval Fuel Depot overlooking San Francisco Bay, around Tank 14); San Francisco Bay, Point Molate Naval Fuel Depot Comment
  RSA0098705  Spergularia villosa William J. Ferlatte, L. Maynard Moe 1970-4-27 1258 Contra Costa San Francisco Bay, Red Rock Island; northwest side. Comment
  CDA22505  Stachys ajugoides var. rigida D. G. Kelch, D. A. Weinstein 2008-4-25 8 .077 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
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Jan 7 2016
  UC691718  Stachys ajugoides var. rigida Mary L. Bowerman 1938-5-28 3637 Contra Costa 4.7 mi from North Gate (North Road, on w-facing bank between road and chaparral); Mount Diablo 457 Comment
  UC1191915  Stachys albens Malcolm A. Nobs, S. Galen Smith 1949-7-8 943 Contra Costa 4 mi n Kingston (Otto's Black Bass Resort) Comment
  POM300999  Stachys bullata Mary L. Bowerman 1933-5-18 2119 Contra Costa Mount Diablo, Blackberry Spring. Comment
  UC2055619  Stachys pycnantha Joseph Andorfer Ewan 1933-10-15 8035 Contra Costa SW slope Mt. Diablo. 1066 Comment
  UCD15026  Stachys rigida Jennifer Roth 1979-4-29 27 Contra Costa Clayton, CA, Russleman Park Road off Marsh Creek Road, Concord Mt. Diablo Trail Ride Assoc. grounds; 365 Comment
  JEPS36206  Stebbinsoseris heterocarpa W. L. Jepson 1922-5-23 9659 Contra Costa Mt. Diablo Comment
  UC2070629  Stellaria nitens Barbara Ertter with Joanne Kerbavaz, David Gowen, Mike Park and Victoria Seidman 2004-4-20 18362 Contra Costa Eagle Peak Trail on east side of Twin Peaks, north side of Mount Diablo. Comment
  UC2027739  Stellaria pallida Barbara Ertter 1997-1-5 15444 Contra Costa Lime Ridge Open Space on northwest side of Mount Diablo, section on north side of Ygnacio Valley Road. Comment
  SEINET11800583  Stephanomeria virgata L. S. Rose 1938-1 38308 Contra Costa Marsh Creek, 6 mi E of Clayton 152 Comment
  HSC13371  Stipa pulchra Greg Bos 1963-4-28 94 Contra Costa Pinole hills overlooking San Pablo Bay 46 Comment
  UC1492706  Streptanthus albidus subsp. peramoenus Freed W. Hoffman 1949-4-16 2762 Contra Costa 2 mi inside North Gate of Mt. Diablo State Park; Mt. Diablo 228 Comment
  UC2028978  Streptanthus glandulosus subsp. glandulosus Barbara Ertter 2000-5-14 17020 Contra Costa Donner Basin on north side of Mount Diablo, switchbacks on Cardinet Oaks Road. Comment
  CAS-BOT-BC87340  Streptanthus hispidus W. H. Brewer 1884-1-1 s.n. Contra Costa Summit Mount Diablo. Comment
  CAS-BOT-BC87343  Streptanthus hispidus L. R. Abrams 1921-5-25 8059 Contra Costa Summit Mount Diablo. Comment
  CAS-BOT-BC87345  Streptanthus hispidus Mrs. E. C. Sutliffe 1920-5-30 s.n. Contra Costa Mount Diablo. Comment
  RSA66600  Streptanthus hispidus Annetta Carter 1935-6-1 880 Contra Costa NW slope of Mount Diablo near summit; 1067 Comment
  UC205840  Streptanthus hispidus Paul L. Wilson 1921-5-15 Contra Costa Mt. Diablo Comment
  UC10898  Streptanthus tortuosus var. orbiculatus McLean 1800-1 Contra Costa Mount Diablo Comment
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Jan 11 2013
  RSA721273  Stuckenia filiformis Barbara Ertter 1996-5-11 14644 Contra Costa North Gate Road at northwest base of Mount Diablo, Ticle Pond west of road toward Castle Rock. Comment
  UC2028384  Stuckenia pectinata Barbara Ertter 1998-6-20 16254 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Willow Spring Pond south of Ginder Gap Comment
  UC2028454  Stuckenia pectinata Barbara Ertter with Joanne Kerbavaz 2000-8-20 17507 Contra Costa Hidden Pond on south side of Mount Diablo Comment
  UC2028481  Stuckenia pectinata Barbara Ertter with Chris Thayer 1996-10-25 15371 a Contra Costa Northwest flank of Mount Diablo, Tick Pond at arc of Falcon Road between North Gate Road and Castle Rock Comment
  UC407387  Suaeda moquinii Ira L. Wiggins 1930-4-17 4585 Contra Costa Byron Hot Springs Comment
  UC1005878  Symphoricarpos albus N. Floy Bracelin 1944-4-30 2674 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  RSA29681  Symphoricarpos albus var. laevigatus Joseph A. Ewan 1936-5-3 9500 Contra Costa Wildcat Creek. Comment
  UC691751  Symphoricarpos albus var. laevigatus Mary L. Bowerman 1931-4-11 700 Contra Costa Pine Canyon Pine Canyon, Mount Diablo; Mount Diablo Comment
  CAS-BOT-BC269563  Symphoricarpos albus var. laevigatus Volney Rattan 1884-6-1 s.n. Contra Costa Unspecified Comment
  UC2046322  Symphyotrichum lanceolatum var. hesperium Barbara Ertter 2000-10-26 17550 Contra Costa West side Mount Diablo, Little Pine Creek near park boundary, just upstream from Falcon Road creek crossing. Comment
  UC2046323  Symphyotrichum lanceolatum var. hesperium Barbara Ertter 2000-9-2 17520 Contra Costa Sobrante Ridge Preserve in hills southeast of El Sobrante, north of trailhead from Heavenly Ridge entrance. Comment
  CDA33070  Symphyotrichum lentum D. G. Kelch 2010-10-5 10 .424 Contra Costa The Delta.; Antioch shoreline. West of Fulton shipyard. Comment
  UC1422530  Symphyotrichum lentum Alice Q. Howard and W. R. Powell 1977-6-1 38 Contra Costa Antioch Dunes, within PG&E-owned strip under eastern power line Comment
  JEPS103102  Symphyotrichum subspicatum Mary L. Bowerman 1993-10-19 Contra Costa Marsh Creek near Russelman Foad Mount Diablo 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
  JEPS96865  Tamarix parviflora Dean W. Taylor 1971-4-3 986 Contra Costa along Highway 4 in Contra Coasta County 1 mile east of the junction with Byron Road 3 Comment
  JEPS111741  Taraxacum officinale D. G. Kelch 2005-3-24 05 .58 Contra Costa Southern Pt. Pinole 3 Comment
  UCD35996  Taraxia ovata Beecher Crampton 1949-4-21 426 Contra Costa Contra Costa County, city of Richmond, in vacant lot near Santa Fe Railroad, S. 14th Street. 7 Comment
  UC1618308  Tauschia hartwegii Barbara Ertter with Travis Columbus 1990-6-10 9106 Contra Costa ne corner Briones Regional Park (e-facing steep hillside above junction of Spengler and Blue Oak trails, Briones Hills, w of Pleasant Hill); ne corner of Briones Regional Park, Briones Hills 274 Comment
  UCD128119  Tauschia hartwegii P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UC1819074  Tetragonia tetragonoides Barbara Ertter, Drew Hansen 1995-3-28 13935 Contra Costa Chevron oil refinery in northwest Richmond off of Castro St., south of Wildcat Creek Comment
  UC692141  Thalictrum fendleri var. polycarpum Mary L. Bowerman 1931-4-5 673 Contra Costa by road to Gregory Ranch Mount Diablo 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
  UCD96763  Thalictrum fendleri var. polycarpum Margaret Siri 1974-5-12 39 Contra Costa East-west canyon off-shoot, east of the bottom of Rifle Range Road, Wildcat Canyon. Comment
  CAS-BOT-BC197424  Thinopyrum ponticum T. C. Fuller 1961-9-13 7001 Contra Costa Hwy J4, ca. 4 mi s.e. of Byron Comment
  JEPS54202  Thysanocarpus curvipes W. L. Jepson 1891-5-24 Contra Costa Mt. Diablo Comment
  UC614830  Thysanocarpus curvipes Beryl O. Schreiber 1932-3-27 163 Contra Costa near Antioch; near Antioch Comment
  UCR143524  Thysanocarpus curvipes L. S. Rose 1933-4-17 33096 Contra Costa Antioch 30 Comment
  CAS-BOT-BC88247  Thysanocarpus curvipes Alice Eastwood 1914-2-24 3738 Contra Costa Anticoch. Comment
  CAS-BOT-BC88261  Thysanocarpus curvipes Paul F. Covel 1936-4-19 210 Contra Costa Las Trampas (Cashion) Canyon. Comment
  UCD102379  Tonella tenella Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 890 Comment
  JEPS111629  Torilis nodosa D. G. Kelch 2005-5-1 05 .201 Contra Costa Crockett - Edwards Canyon 100 Comment
  JEPS127668  Torilis nodosa Barbara Ertter with David Gowen and Michael Park 2017-5-2 22816 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  JEPS887  Torilis nodosa W. L. Jepson 1923-4-22 9863 Contra Costa Mt Diablo Comment
  UC1123217  Torilis nodosa C. M. Belshaw 1936-5-7 2048 Contra Costa 2 miles S of San Ramon 274 Comment
  UC692376  Torilis nodosa Mary L. Bowerman 1930-6-3 230 Contra Costa North road 1.9 miles from entrance 167 Comment
  CAS-BOT-BC172936  Toxicodendron diversilobum Alice Eastwood 1915-5-30 4551 Contra Costa Mt. Diablo Comment
  JEPS63917  Toxicodendron diversilobum W. L. Jepson 1894-9-7 13913 Contra Costa Bald Peak near Berkeley; Bald Peak Comment
  UC1084405  Toxicodendron diversilobum G. Thomas Robbins 1937-4-17 118 Contra Costa near Point Richmond Point Richmond Comment
  CAS-BOT-BC172937  Toxicodendron diversilobum Mary L. Bowerman 1942-5-24 3845 Contra Costa West fork of Sycamore Creek (Madrone Canyon), below lower Rock City Camp Comment
  CAS-BOT-BC172938  Toxicodendron diversilobum B. Lacoste 1920-10-1 s.n. Contra Costa On hill slope by Lake Aliso Comment
  UCD139844  Toxicoscordion fremontii Robert C. Bechtel 1952-4-12 55 Contra Costa West side Mount Diablo. 914 Comment
  CDA4740  Tribulus terrestris T. C. Fuller 1961-9-13 6999 Contra Costa South of Highway 4, 0.1 miles west of Antioch Bridge Road, 2 miles west of Oakley. 0 Comment
  SEINET13948210 Image available Trichostema lanceolatum Lewis S. Rose 1953-1 53095 Contra Costa Mt. Diablo, W slope; 1600 ft alt. 488 Comment
  HSC17937  Trientalis latifolia J. Wendell Howe 1930-5-25 Contra Costa Moraga Rd. Comment
  JEPS65688  Trifolium albopurpureum var. albopurpureum W. L. Jepson 1917-4-14 6860 Contra Costa Oakland Hills Comment
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Dec 17 2008
  UC555481  Trifolium albopurpureum var. albopurpureum H. L. Mason 1928-4-26 4384 Contra Costa Berkeley-Oakland hills Comment
  JEPS68974  Trifolium albopurpureum var. dichotomum Edward Lee 1935-3-29 1308 Contra Costa e Kirker Pass (Donovan Rd, (w watershed of Kirker Creek)) Comment
  UC16499  Trifolium albopurpureum var. dichotomum Maclean Contra Costa Mt. Diablo Comment
  UC165535  Trifolium albopurpureum var. dichotomum J. Burtt Davy 1895-1 949 Contra Costa Antioch Comment
  RSA91071  Trifolium albopurpureum var. olivaceum Alice Eastwood, John T. Howell 1936-4-19 2132 Contra Costa Nortonville. Comment
  UC16605  Trifolium albopurpureum var. olivaceum W. H. Brewer 1862-4-30 1019 Contra Costa Camp 69 Walnut Creek Comment
  UC2070467  Trifolium albopurpureum var. olivaceum Barbara Ertter 2000-5-14 17002 Contra Costa Lower Donner Canyon on north side of Mount Diablo, junction of Donner Canyon, Cardinet Oaks and Meridian Ridge Roads. Comment
  CAS-BOT-BC5352  Trifolium bifidum William Henry Brewer 1862-5-29 1184 Contra Costa Marsh's Ranch, between Monte Diablo and the San Joaquin. Comment
  UC2070438  Trifolium bifidum Barbara Ertter with Dan Norris 2001-4-8 17591 Contra Costa Lime Ridge Open Space east of Walnut Creek, path northwest of summit installation. Comment
  UC764663  Trifolium bifidum var. bifidum R. F. Hoover 1938-5-4 3352 Contra Costa e Tassajero Creek (peak) Comment
  UC2029058  Trifolium bifidum var. bifidum 'Barbara Ertter with Save Mount Diablo outing 2003-5-8 18168 Contra Costa Mangini property on knoll west of Mount Zion, NW corner of Mount Diablo. Comment
  CDA27902  Trifolium bifidum var. decipiens A. G. Murdock, D. G. Kelch 2004-3-19 234 Contra Costa Carquinez Strait Region; McEwen Road. Comment
  UC631337  Trifolium bifidum var. decipiens Mrs. K. Brandegee 1907-5-1 Contra Costa Antioch Comment
  RSA0033775  Trifolium campestre Barbara Ertter, Richard K. Brummitt 1998-5-6 16095 Contra Costa Donner Canyon Trail near Regency Drive trailhead, north base of Mount Diablo. 182 Comment
  UC692251  Trifolium ciliolatum Mary L. Bowerman 1932-4-27 1363 Contra Costa w Riggs Canyon (Oyster Ridge, s face); Mount Diablo 762 Comment
  CDA33837  Trifolium ciliolatum D. G. Kelch 2010-5-15 10 .122 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 Comment
  UC692461  Trifolium ciliolatum Mary L. Bowerman 1935-5-1 2931 Contra Costa r mi from entrance (w rd); Mount Diablo Comment
  UC33308  Trifolium depauperatum var. amplectens W. C. Blasdale 1891-4-25 Contra Costa Point Isabel Comment
  UC630935  Trifolium depauperatum var. depauperatum P. B. Kennedy 1928-4-19 10049 a Contra Costa Byron Hot Springs, near [golf links] Byron Hot Springs Comment
  UC16570  Trifolium depauperatum var. hydrophilum J. Burtt Davy 1900-3-24 6529 Contra Costa near Santa Fe townsite (Pt. Richmond) Comment
  UC555355  Trifolium depauperatum var. truncatum H. L. Mason 1929-3-15 5061 Contra Costa ca 5 mi from Brentwood (Marsh Creek Rd) Comment
  UCD84949  Trifolium depauperatum var. truncatum Chuck Hughes 2010-3-29 221 Contra Costa About 0.4 mile southeast of Vasco Road. 124 Comment
  RSA107034  Trifolium depauperatum var. truncatum L. S. Rose 1956-3-19 56004 Contra Costa 2 miles southeast of Byron 8 Comment
  UC2027922  Trifolium depauperatum var. truncatum Barbara Ertter with Dan Norris 2001-4-15 17611 Contra Costa West side Mount Diablo, outcrops of China Wall rock formation. Comment
  CDA29487  Trifolium dubium D. G. Kelch, Troy MacGregor 2009-5-1 9 .282 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  CHSC116657  Trifolium dubium Lowell Ahart; Josephine Guardino 2016-4-19 20768 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
  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
  UC16537  Trifolium fucatum J. Burtt Davy 1900-3-24 6531 Contra Costa Stege Comment
  UC555454  Trifolium fucatum H. L. Mason 1929-3-31 5143 Contra Costa Briones Valley Comment
  UC692239  Trifolium fucatum Mary L. Bowerman 1932-5-6 1421 Contra Costa Mitchell Canyon Mount Diablo Comment
  POM194649  Trifolium fucatum var. fucatum Y. Mexia 1929-4-21 2369 Contra Costa Moraga Valley. Comment
  JEPS125941  Trifolium glomeratum D. W. Taylor 2001-4-26 17628 Contra Costa Orinda; hill slopes ca 0.3 air miles E of the junction of Bear Creek Road and Camino Pablo Comment
  UC16548  Trifolium gracilentum Harley P. Chandler 1901-4-5 957 Contra Costa Mount Diablo Comment
  UC16557  Trifolium gracilentum W. H. Brewer 1862-5-19 1116 Contra Costa n Kirker's Pass Comment
  UC692683  Trifolium gracilentum Mary L. Bowerman 1933-5-9 2046 Contra Costa Stage Rd Mount Diablo 853 Comment
  POM300710  Trifolium gracilentum Unspecified 1933-5-9 2041 Contra Costa East of Pioneer Camp. Comment
  RSA695881  Trifolium gracilentum Barbara Ertter, Chris Thayer 1993-5-7 11712 Contra Costa Ca 1/2 mile N of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land E of Tilden Park. Grazing land on lower slopes S of Wildcat Canyon Road. Comment
  SEINET12147995  Trifolium gracilentum H. M. Hall 1901-1 1734 Contra Costa Region of San Francisco Bay. Mt. Diablo 671 Comment
  CDA8356  Trifolium hirtum D. G. Kelch, A. G. Murdock 2005-4-15 5 .148 Contra Costa Carquinez Strait; In East Bay Regional Park land W of Cumming s Skyway near Summit (nr old C&H Sugar diatomaceous earth dump). Comment
  JEPS127100  Trifolium hirtum Lowell Ahart, Josephine Guardino 2016-4-19 20759 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  RSA0033857  Trifolium hybridum Barbara Ertter 2000-7-16 17391 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park, a short distance upstream from dry check-dam. 121 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
  JEPS100107  Trifolium microdon G. Smick 2003-4-22 GAS 144 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC692670  Trifolium microdon Mary L. Bowerman 1935-5-16 2987 Contra Costa Russelman Park Mount Diablo (at end of road) 381 Comment
  UC2028955  Trifolium oliganthum Barbara Ertter 2003-3-28 18135 Contra Costa Round Valley Regional Preserve, mid Hardy Canyon along High Creek. Comment
  JEPS125936  Trifolium tomentosum D. W. Taylor 2001-3-28 17620 Contra Costa Berkeley Hills; on slopes about 0.75 miles S of Hwy 24 at E portal of the Caldecott Tunnel Comment
  UCR263551  Trifolium tomentosum Barbara Ertter 2002-5-8 17832 Contra Costa San Francisco Bay Region, Richmond Field Station 6 Comment
  UC165546  Trifolium variegatum var. melananthum Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  JEPS4408  Trifolium variegatum var. variegatum W. L. Jepson 1891-6-9 13707 Contra Costa Fish Ranch Comment
  CDA15260  Trifolium willdenovii G. F. Hrusa, D. Crowe 1998-5-8 14391 Contra Costa Sacramento Delta; E end of Dow Chemical property in Pittsburg. Comment
  POM181463  Trifolium willdenovii I. L. Wiggins 1930-4-17 4575 Contra Costa 1/4 mi. S. of Byron. Comment
  SBBG40328  Trifolium willdenovii W. J. Dress 1951-5-9 3311 Contra Costa just W of Orinda Comment
  UC1819061  Trifolium willdenovii Barbara Ertter, Gary Schoolcraft 1996-4-7 14570 Contra Costa Point San Pablo in west Richmond, crest of road to yacht harbor, coastal grassland along ridge, scraped roadbed to tower. Comment
  UC2070435  Trifolium willdenovii 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 18563 Contra Costa Long Ridge on west side of Mount Diablo, upper Burma Road between Mothers Trails and Deer Flat Road. Comment
  UC555573  Trifolium willdenovii H. L. Mason 1929-3-29 5132 Contra Costa 2 mi above Clayton (Marsh Creek Rd) Comment
  UCD109510  Trifolium willdenovii A. A. Beetle 1939-4-12 1770 Contra Costa Pinole. Comment
  JEPS66076  Trifolium wormskioldii W. L. Jepson May 23 1891-May 24 1891 13655 Contra Costa Mt. Diablo Comment
  UC16819  Trifolium wormskioldii W. L. Jepson 1891-5-23 Contra Costa Mt. Diablo Comment
  UC508  Triglochin striata Jos. Burtt Davy 1900-6-7 6676 Contra Costa Martinez Comment
  UC367060  Trillium chloropetalum J. G. Lemmon April, 1878 Contra Costa Mt. Diablo and Oakland Hills Comment
  UC13818  Trillium ovatum E. L. Drew 1888-2-22 Contra Costa Moraga Valley Comment
  POM300987  Triodanis biflora Mary L. Bowerman 1933-5-18 2130 Contra Costa Mount Diablo. Comment
  JEPS23787  Triphysaria eriantha subsp. eriantha Rimo Bacigalupi with Paul C. Hutchison and John Weiler 1959-3-19 6970 Contra Costa junction of Holey Road and Byron Road about 2.9 mi se Byron 4 Comment
  UC27186  Triphysaria eriantha subsp. eriantha J. Burtt Davy 1897-3-29 3019 Contra Costa near Black Diamond Comment
  POM203716  Triteleia laxa J. T. Howell 1931-5-12 6468 Contra Costa Oakland Hills Comment
  JEPS99563  Triticum aestivum Mary Bowerman 1978-5-21 Contra Costa Mount Diablo, E side Hetherington Loop. Comment
  JEPS17167  Tropidocarpum capparideum S. Galen Smith and Donald Stone 1957-3-30 2867 Contra Costa 3 mi se Byron (far western end of field just n of the Holey Road); Byron Road 5 Comment
  CAS-BOT-BC67402  Tropidocarpum gracile Alice Eastwood 1914-3-14 3783 Contra Costa Byron Springs. Comment
  JEPS68961  Tropidocarpum gracile Edward Lee 1935-3-10 1239 Contra Costa e. Antioch (Antioch Sand Dunes); Antioch Sand Dunes Comment
  UC691062  Tropidocarpum gracile Mary L. Bowerman 1932-2-28 1092 Contra Costa ridge e Rhine Canyon; Mount Diablo 579 Comment
  UC857586  Tropidocarpum gracile Lewis S. Rose 1940-4-30 40249 A Contra Costa 5 mi e Clayton (fields); Marsh Creek 60 Comment
  CAS-BOT-BC67408  Tropidocarpum gracile Niall McCarten; V. I. Dains 1986-6-11 03231145 Contra Costa 500 yards west of Camino Diablo bridge over Kellogg Creek. Comment
  JEPS123184  Tropidocarpum gracile David Gowen 2009-5-12 1021 Contra Costa East of Las Trampas Ridge on Del Amigo Trail, near saddle northeast of junction with Sulpher Springs Trail. Comment
  UC2070553  Tropidocarpum gracile Barbara Ertter with David Gowen 2006-6-6 18675 Contra Costa Upper San Leandro Reservoir Watershed (EBMUD) south of Moraga, on Rocky Ridge Tail. Comment
  UC2070596  Ulmus minor Barbara Ertter with Chris Thayer 2002-4-13 17826 Contra Costa North side of Mount Diablo, on north face of Mount Olympia. Comment
  OBI13419  Umbellularia californica H. E. McMinn, E. Maino 1931-2-15 13 Contra Costa Leona Heights Comment
Read comments
May 22 2013
  CAS-BOT-BC199242  Vaccinium ovatum W. W. Carruth 1901-5-1 s.n. Contra Costa Redwood Canon [Canyon] Comment
  UCD125942  Verbena hastata Malcolm A. Nobs; S. Galen Smith 1949-7-8 942 Contra Costa Otto's Black Bass Resort, 4 miles N of Kingston. Comment
  RSA29666  Verbena lasiostachys var. lasiostachys Joseph A. Ewan 1936-7-5 9719 Contra Costa Reservoir road, Wildcat Creek. Comment
  UC176060  Verbena lasiostachys var. scabrida R. P. Brandt 1914-7-9 Contra Costa Berkeley Hills. Comment
  UC2028357  Verbena litoralis Barbara Ertter with Tony Morosco 1998-7-11 16372 Contra Costa Antioch Marina, in riverside tidal marsh Comment
  UC1050160  Viburnum cylindricum N. Floy Bracelin 1943-10-24 2368 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC267239  Viburnum ellipticum Mary L. Bowerman; Walter & Irja Knight 1967-11-6 2301 Contra Costa Near Curry Park in Morgan Territory, Sulphur Spring Canyon, half way between canyon source and active spring, 15 yards above creek 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
  UC1050194  Viburnum tinus N. Floy Bracelin 1943-2-9 2416 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC2070474  Vicia americana Barbara Ertter 2003-3-28 18137 Contra Costa Round Valley Regional Preserve, mid Hardy Canyon along High Creek. Comment
  JEPS46092  Vicia americana var. americana Mrs. E. L. Mossman 1931-3-12 Contra Costa Wildcat Canyon; Berkeley Hills 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
  UC1300884  Vicia sativa subsp. nigra Helen K. Sharsmith 1962-4-18 4958 Contra Costa Reliez Valley Road; San Francisco Bay Region 152 Comment
  HSC15274  Vicia sativa subsp. sativa Greg Bos 1963-4-26 93 Contra Costa Pinole Valley Rd., SE of Pinole 76 Comment
  JEPS29582  Vicia villosa subsp. varia Rimo Bacigalupi, and L. Heckard, P. Silva 1962-4-16 8439 Contra Costa 2 mi s Pinole junction and U.S. Highway 40 (adjacent to U.S. Highway 40) Comment
  JEPS48868  Viola purpurea subsp. purpurea Elsa Kraeger 1926-3-7 Contra Costa on road e of summit of Mount Diablo Comment
  UC19343  Viola purpurea subsp. quercetorum W. H. B. 1862-5-7 55 Contra Costa n slope of Mount Diablo Comment
  HSC47194  Vitis californica B. C. Templeton 1962-6-10 Contra Costa Mt. Diablo Comment
  SEINET12209620  Vitis californica M. T. Doutt 1930-1 91 Contra Costa Marsh Creek Comment
  CAS-BOT-BC193589  Vulpia bromoides Edward Lee 1936-4-19 1979 A Contra Costa Red Rock, San Francisco Bay Comment
  UC692390  Vulpia bromoides Mary L. Bowerman 1935-5-16 3008 a Contra Costa e side North Peak, Mount Diablo (behind Gabriel-Hinks'); Mount Diablo 289 Comment
  CAS-BOT-BC198756  Vulpia bromoides Mary L. Bowerman 1935-5-16 3008 Contra Costa Behind Gabriel-hinks', east side of North Peak in wooded gully - Mount Diablo 289 Comment
  CAS-BOT-BC198757  Vulpia bromoides Mary L. Bowerman 1933-4-15 1872 Contra Costa Canyon south of Arroyo del Cerro, rocky knoll 250 feet below spring - Mount D