Search Results — 2000 specimen records retrieved (1370 records with coordinates)
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Results for search: County=CONTRA COSTA; Source=All;   

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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)
 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
 Records are made available under the CCH Data Use Terms.
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UC1357059  Abies bracteata Rimo Bacigalupi 1960-4-4 7360 Contra Costa w slopes of upper Wildcat Canyon (on short side of road to the corporation yard.); Tilden Regional Park, Berkeley Hills 297 Comment
  CAS-BOT-BC177068  Acacia melanoxylon Walter Knight 1978-7-13 3102 Contra Costa Browns Island Comment
  UC1719706  Acacia retinodes Barbara Ertter 1995-1-14 13922 Contra Costa N side of Cerrito Creek at edge of mall E of Pierce St. Comment
  UCD104651  Acacia verticillata Rudolf Schmid 1997-5-21 1997 -13 Contra Costa Hillside Natural Area, El Cerrito; nw. of King Ct. entrance. 575 Comment
  JEPS13005  Acaena pinnatifida var. californica Rimo Bacigalupi with G. T. Robbins and Keith Harrison 1955-5-13 5062 Contra Costa opposite Mira Vista Country Club (hilltop just to w. of Arlington Ave., hills opposite El Cerrito) 198 Comment
  JEPS42649  Acer macrophyllum W. L. Jepson 1908-4-4 3005 Contra Costa West Branch San Pablo Creek Comment
Read comments Jul 7 2011
  UC1050967  Acer macrophyllum N. Floy Bracelin 1941-4-8 2647 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC334181  Acer negundo var. californicum Annetta Carter 1937-3-28 1227 Contra Costa Creek bank, Moraga Valley, 2.5 miles north of Moraga 182 Comment
  LA210535  Acer negundo var. californicum Annetta M. Carter; 1937-3-28 1227 Contra Costa Moraga Valley, 2.5 mi N of Moraga. 182 Comment
  UC691726  Achillea millefolium Mary L. Bowerman 1931-4-25 751 Contra Costa 2 mi by road from Mt. Diablo West Entrance; Mount Diablo Comment
  JEPS100120  Achyrachaena mollis G. Smick 2003-4-10 GAS 138 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS36721  Achyrachaena mollis Anna E. Ehlers 1920-5-23 582 Contra Costa Trampas Canon Comment
  RSA15448  Achyrachaena mollis Alice Eastwood, J. T. Howell 1936-4-19 s.n. Contra Costa Nortonville. Comment
  UC1046583  Achyrachaena mollis Alex D. Hawkes and R. Bacigalupi 1951-4-12 4775 Contra Costa meadow near Walnut Creek Comment
  SBBG40322  Acmispon americanus W. J. Dress 1951-7-3 3470 Contra Costa a few mi S of Moraga 152 Comment
  RSA0068490  Acmispon brachycarpus Katie Gallagher, Nick Jensen 2014-4-26 184 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  CHSC23289  Acmispon wrangelianus Carol Getzinger 1964-4-11 Contra Costa Along Arlington Boulevard at Patterson Circle, Richmond. 30 Comment
  JEPS112409  Acmispon wrangelianus Dean G. Kelch and Andrew G. Murdock 2005-4-15 05 .152b Contra Costa Rodeo Creek; county: Contra Costa; EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  UCD104491  Acmispon wrangelianus Morris Halperin 1929-4-21 s.n. Contra Costa Moraga Valley. Comment
  UC905259  Actaea rubra J. A. Rattenbury 1949-3-10 129 Contra Costa 1/2 mi. e. Oakland Tunnel (on s. side of hwy. above creek) 243 Comment
  POM339729  Actaea rubra subsp. arguta F. R. Fosberg 1969-8-13 51420 Contra Costa Canyon Comment
  JEPS112095  Adenostoma fasciculatum D. G. Kelch 2005-3-25 05 .85 Contra Costa Pinole Peak Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course). East of Pinole Peak 250 Comment
  SEINET3449243  Adiantum jordanii Dean G. Kelch, Andrew G. Murdock 2004-2-12 AGM 206 Contra Costa Franklin Canyon, Franklin Canyon, McHarry Ranch Road 126 Comment
Read comments Sep 26 2014
  JEPS40093  Aesculus californica W. L. Jepson 1918-6-5 7616 Contra Costa Donner Canyon; Mt. Diablo 228 Comment
  OBI49101  Aesculus californica Joseph Andorfer Ewan 1936-5-31 9715 Contra Costa Wildcat Crk Comment
  JEPS36285  Agoseris grandiflora W. L. Jepson 1919-6-8 8329 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC15428  Agoseris grandiflora var. grandiflora Alice Eastwood 1923-5-4 11736 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC22971  Agoseris heterophylla John Thomas Howell 1933-5-14 11260 Contra Costa Hills east of St. Mary's College Comment
  JEPS36324  Agoseris hirsuta W. L. Jepson 1922-5-26 9673 Contra Costa North Berkeley Hills; Berkeley Hills (North) Comment
  UC29385  Agoseris retrorsa F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  POM300723  Agrostis Mary L. Bowerman 1933-8-26 2413 Contra Costa Mount Diablo. At and below Lower Canyon Spring. 976 Comment
  RSA666409  Agrostis avenacea Barbara Ertter, Brad Olson 1991-9-28 10831 Contra Costa San Pablo Reservoir between Orinda and El Sobrante 91 Comment
  UC1618364  Agrostis avenacea Barbara Ertter, Brad Olson 1991-9-28 10831 Contra Costa San Pablo Reservoir between Orinda and El Sobrante (at s. end of reservoir); San Pablo Reservoir 91 Comment
  SEINET10590760  Agrostis avenacea Barbara J. Ertter, B. Olson 1994-5-7 Ertter 12748 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay. Local in puddle on graded flat. 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
  JEPS400  Agrostis hallii W. L. Jepson 1937-7-2 18447 Contra Costa 0.5 mi w Crokcett Comment
  UC2013050  Agrostis hallii Barbara Ertter with Lisa Schultheis 1996-9-2 15278 Contra Costa South Side Mount Diablo Blackhawk Road east of Sycamore Creek Road. Comment
  UCD149001  Agrostis pallens D. Kelch; Suzanne Latham, Matt Beyers 2009-6-3 09. 335 Contra Costa El Sobrante Ridge at end of Silver Belt Dr. 198 Comment
  UC2028465  Agrostis stolonifera Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15670 Contra Costa Martinez Regional Shoreline, south edge of Carquinez Strait Comment
  JEPS99493  Agrostis viridis Mary Bowerman 1975-9-14 Contra Costa Mount Diablo, near Chase Pond. Comment
  JEPS100153  Ailanthus altissima A. Langston 2003-8-26 AL 81 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS97561  Aira caryophyllea R. D. Stone 1980-7-13 282 Contra Costa Huckleberry Trail Oakland Hills, near Alameda-Contra Costa county line (NE of intersection of Skyline Blvd. and Snake Road) Comment
  UC1108976  Aira caryophyllea Leo and Shirley Koch 1947-4-20 1343 Contra Costa 0.5 mi s Giant (meadow between golf course and railroad) 3 Comment
  UCD55736  Aira caryophyllea Henry Moser 1942-4-12 212 Contra Costa In parking space at San Pablo Yacht Harbor, Point Richmond. 7 Comment
  CAS-BOT-BC445378  Alisma plantago-aquatica Volney Rattan 1886-6-16 s.n. Contra Costa Walnut Creek Comment
  CAS-BOT-BC445380  Alisma plantago-aquatica Mary L. Bowerman 1933-9-9 2429 Contra Costa Mount Diablo. Frog Pond. Comment
  CAS-BOT-BC175357  Allenrolfea occidentalis David D. Keck 1933-8-23 2515 Contra Costa Byron Hot Springs, eastern Contra Costa County Comment
  CAS-BOT-BC175360  Allenrolfea occidentalis J. Burtt Davy 1898-5-1 s.n. Contra Costa Byron Springs, Mt. Diablo region Comment
  UC116546  Allenrolfea occidentalis K. Brandegee Oct. 1887 Contra Costa Antioch Comment
  UCR142797  Allenrolfea occidentalis E. E. Stanford 1930-1 1871 Contra Costa Sacramento Valley, Near Old River Comment
  RSA367058  Allium amplectens Mark Morris 1929-03 14928 Contra Costa Mt. Diablo. Comment
  UC843253  Allium falcifolium Lewis S. Rose 1941-5-15 41237 Contra Costa summit of Mt. Diablo, Type Locality Mt. Diablo 1188 Comment
  CAS-BOT-BC469115  Allium falcifolium John Thomas Howell 1941-4-6 16179 Contra Costa Ridge east of Deer Flat, Mt. Diablo Comment
  JEPS112498  Allium serra D. G. Kelch 2004-4-30 04 .151 Contra Costa Mt. Wanda - Martinez 180 Comment
  UC635249  Allium serra H. L. Mason 1929-3-29 5135 Contra Costa Marsh Creek Road 2 mi e Claton; Marsh Creek Road Comment
  CAS-BOT-BC475527  Allium serra Alice Eastwood 1916-5-30 4461 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC475534  Allium serra W. H. Brewer 1862-4-25 994 Contra Costa Martinez Comment
  CAS-BOT-BC475540  Allium serra E. M. Zeile 1922-6-3 s.n. Contra Costa Mount Diablo Comment
  UC3105  Allium serra H. P. Chandler 1900-3-23 573 Contra Costa Pleasant Valley Comment
Read comments Aug 23 2008
  UCD138636  Allium serra Cliff Low 1978-5-19 20 Contra Costa Back Canyon Creek, east of Eagle Peak on Mount Diablo. 304 Comment
  JEPS112502  Allium triquetrum D. G. Kelch 2003-3-21 03 .42 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  SEINET3151680  Allocarya stipitata L. S. Rose 1936-4-24 36155 Contra Costa 8 miles S of Antioch 30 Comment
  SEINET3151683  Allocarya trachycarpa L. S. Rose 1936-4-24 36151 Contra Costa 10 miles S of Antioch 30 Comment
  UCD118009  Allophyllum divaricatum P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UC691595  Allophyllum gilioides subsp. gilioides Mary L. Bowerman 1935-4-26 2919 Contra Costa Meridian peak summit Mt. Diablo 1158 Comment
  UC692034  Alnus rhombifolia Mary L. Bowerman 1931-10-13 1058 Contra Costa Alamo Canyon Mount Diablo 259 Comment
  UC768586  Alopecurus saccatus R. F. Hoover 1937-5-14 2120 Contra Costa Byron Hot Springs Comment
  CAS-BOT-BC137969  Alopecurus saccatus Niall McCarten; V. I. Dains 1986-6-1 03261419 Contra Costa 0.5 mile north of Balfour Road at the Deer Creek Reservori. Comment
  CDA20558  Alternanthera philoxeroides unknown 2005-6-23 s.n. Contra Costa San Francisco Bay Area; Garden weed in Danville, CA. 0 Comment
  UC691932  Amaranthus albus Mary L. Bowerman 1935-6-28 3176 Contra Costa s of Meridian Peak summit (300 yds e of the meridian fence); Mt. Diablo 487 Comment
  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
  UC1618423  Ambrosia chamissonis Barbara Ertter, Brad Olson 1993-10-30 12288 Contra Costa n.e. Rodeo (across railroad tracks from San Pablo Ave., small sandy beach next to jetty) Comment
  RSA666352  Ambrosia chamissonis var. chamissonis Barbara Ertter, Brad Olson 1993-10-30 12288 Contra Costa Northeast of Rodeo, across railroad tracks from San Pablo Avenue Comment
  CHSC97944  Ambrosia trifida J. Clark; C. Beutler 1976-9-1 Contra Costa Residential property, 2161 Youngs Court, Walnut Creek. Comment
  CDA6724  Ambrosia trifida V. Guise 1980-10-17 Contra Costa Lora Kayfes property, Gateway Road, Bethel Island. 0 Comment
  UC1618292  Amelanchier utahensis Barbara Ertter, CNPS 1990-8-19 9624 Contra Costa s side of E arm of Briones Reservoir n of Orinda (along Bear Creek Trail on EBMUD land); Briones Reservoir, Bear Creek Trail Comment
  CAS-BOT-BC222219  Amsinckia John Thomas Howell 1934-4-8 11826 Contra Costa South of Antioch Comment
  CAS-BOT-BC222223  Amsinckia Alice Eastwood; John Thomas Howell 1936-4-19 2143 Contra Costa At Antioch Comment
  UC78278  Amsinckia grandiflora T. S. Brandegee May 1887 Contra Costa Judsonville Comment
  SBBG6220  Amsinckia intermedia J. M. Tucker 1946-3-24 1386 Contra Costa hills between Nortonville and Somersville Comment
  UC881400  Amsinckia intermedia Lewis S. Rose 1941-3-13 41032 Contra Costa 3 mi s Byron 15 Comment
  RSA0069374  Amsinckia intermedia Katie Gallagher, Nick Jensen 2014-4-26 215 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  RSA0090977  Amsinckia intermedia Barbara Ertter, Jim Jokerst, Dave Magney 1989-4-5 8130 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  UC1094057  Amsinckia intermedia Francia Chisaki 1954-4-15 590 Contra Costa on Hwy #40 near it's junction with Hwy #4, between Pinole and Hercules Comment
  UC1094090  Amsinckia intermedia Francia Chisaki 1954-3-25 569 Contra Costa 3.2 mi w of junction with road entering Mt. Diablo State Park (on road to; (road out of Walnut Creek)) Comment
  UC1084622  Amsinckia lunaris Francia Chisaki, Peter Kamb Ray 1952-5-4 2275 Contra Costa 1.5 mi e Orinda-Richmond road (leaving this road ca 1 mi n of Orinda); Bear Creek Road Comment
  JEPS25354  Amsinckia lycopsoides Rimo Bacigalupi with Paul C. Hutchison and John Weiler 1959-3-19 6964 Contra Costa 1.9 mi w Byron (at road summit along Camino Diablo) 54 Comment
  UCD119728  Amsinckia lycopsoides Morris Halperin 1929-4-21 s.n. Contra Costa St. Mary's College Campus. Comment
  UC2027923  Amsinckia lycopsoides Barbara Ertter, Dan Norris 2001-4-15 17616 Contra Costa Diablo Foothills Regional Park, Stonegate Trail near Foothills Trail junction. Comment
  UC2028213  Amsinckia menziesii Barbara Ertter with Richard K. Brummitt 1998-5-13 16133 Contra Costa Summit Road on Mount Diablo, base of rock outcrop/roadcut above Juniper Camp. Comment
  UC762817  Amsinckia tessellata var. gloriosa R. F. Hoover 1935-3-10 317 Contra Costa Kirker Pass Comment
  CDA15263  Anagallis arvensis G. F. Hrusa, D. Crowe 1998-5-8 14394 Contra Costa Sacramento Delta; at E end of Dow Chemical property in Pittsburg. Comment
  UC2027713  Ancistrocarphus filagineus Barbara Ertter with Stu Garrett 1997-3-29 15526 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  UC2070515  Ancistrocarphus filagineus Barbara Ertter with Dan Norris 2001-4-8 17586 Contra Costa Lime Ridge Open Space east of Walnut Creek. Comment
  UC691814  Ancistrocarphus filagineus Mary L. Bowerman 1936-4-23 3407 Contra Costa flat below, (upper edge 1778 flat) Moses Rock Spring; Mount Diablo Comment
  SEINET10576437  Androsace elongata subsp. acuta John G. Lemmon 1872-1 Lemmon s.n. Contra Costa Mt. Diablo. Comment
  UC692069  Anemopsis californica Mary L. Bowerman 1931-5-28 903 Contra Costa Pine Canyon by Sulphur Spring (Mount Diablo); , Pine Canyon Comment
  JEPS111614  Angelica californica D. G. Kelch 2004-5-2 04 .166 Contra Costa Edwards Canyon, Crockett 125 Comment
  JEPS84503  Anisocarpus madioides Jack Stratford 1981-5-11 Contra Costa Huckleberry Trail Huckleberry Botanic Regional Preserve Comment
  UC1594182  Anthemis cotula Jerry Powell 1992-6-17 1692 Contra Costa Richmond Field Station Comment
  CAS-BOT-BC84716  Anthemis cotula Mary L. Bowerman 1930-6-3 228 Contra Costa Mount Diablo. North Road, 1.9 miles from entrance 167 Comment
  JEPS99545  Anthriscus caucalis Mary Bowerman 1995-7-2 Contra Costa Mount Diablo, probably Back Canyon or foot trail to Donner Canyon. Comment
  CAS-BOT-BC26282  Antirrhinum elmeri A. D. E. Elmer 1903-6-1 4809 Contra Costa Mount Diablo Comment
  NY67842  Antirrhinum elmeri A. D. E. Elmer 06 1903 4809 Contra Costa Mt. Diablo Comment
  UC2032826  Aphanes arvensis Doran, Andrew Scott 2012-3-20 696 Contra Costa Second highest point on Brooks Island below rocky outcrop Comment
  SEINET13943445 Image available Apium graveolens Joseph Andorfer Ewan 1936-1 9714 Contra Costa Wildcat Creek Comment
  CDA39735  Apocynum cannabinum D. G. Kelch 2004-7-9 4 .306 Contra Costa Carquinez Strait; Alhambra Creek, Martinez, near Muir gravesite, Arroyo del Hambre. Comment
  UC2029068  Aquilegia eximia Barbara Ertter 2000-7-29 17436 Contra Costa Donner Basin on north side of Mount Diablo, Middle Trail below Falls Trail junction, at crossing of W Fork Donner Creek, with Berberis, shaded, surface water. Comment
  RSA0125502  Arabis breweri E. W. Hicks 1917-3-24 111 Contra Costa Mt. Diablo. 1067 Comment
  UC2028457  Aralia californica Barbara Ertter with Joanne Kerbavaz and Mary Bowerman 2000-8-20 17513 Contra Costa North side of Mount Diablo, Big Spring below Prospectors Gap Road at head of Donner Canyon Comment
  UC2029173  Aralia californica Barbara Ertter 2000-7-29 17442 Contra Costa Big Spring on Prospectors Gap Road, head of Donner Creek on north side of Mount Diablo. Comment
  CAS-BOT-BC128689  Arbutus menziesii Alice Eastwood 1922-3-17 11081 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC407798  Arceuthobium campylopodum R. Bacigalupi 1922-9-24 s.n. Contra Costa Mitchell Canon, Mt. Diablo Comment
  UC1078914  Arceuthobium campylopodum Job Kuijt 1958-1-12 1444 Contra Costa Little Rock City Mount Diablo Comment
  SEINET11989149  Arctostaphylos andersonii var. auriculata B. A. Stein 1981-1 460 Contra Costa Mt. Diablo State Park, Rock City Campground 457 Comment
  CAS-BOT-BC24109  Arctostaphylos auriculata Alice Eastwood; John Thomas Howell 1936-4-19 2130 Contra Costa Nortonville Comment
  CAS-BOT-BC24117  Arctostaphylos auriculata C. F. Baker 1903-5-31 3161 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC24120  Arctostaphylos auriculata Alice Eastwood 1922-3-17 11083 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC24122  Arctostaphylos auriculata Gary D. Wallace 1974-12-26 1372 Contra Costa Mt. Diaablo St. Pk. off Summit Dr. along a ridge E of Curry Point; SE of Balancing Rock. 530 Comment
  CDA31098  Arctostaphylos auriculata D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .23 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  RSA15419  Arctostaphylos auriculata Alice Eastwood, John Thomas Howell 1936-4-19 2130 Contra Costa Nortonville. Comment
  RSA252149  Arctostaphylos auriculata G. D. Wallace 1974-12-26 1372 Contra Costa Mount Diablo St. Pk. off Summit Dr. along a ridge E of Curry Point; SE of Balancing Rock. 530 Comment
  RSA622482  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27598 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments Jan 30 2013
  SBBG21400  Arctostaphylos auriculata V. Haraden 1941-7-18 13 Contra Costa near Nortonville 121 Comment
  SBBG28871  Arctostaphylos auriculata L. S. Rose 1934-2-28 34039 Contra Costa S slope of Mt Diablo, 8 mi NE of Danville Comment
  UC1120860  Arctostaphylos auriculata H. A. Jensen 1938-10-27 456 Contra Costa head of Sycamore Creek Mt. Diablo Quadrangle Comment
  UC1200413  Arctostaphylos auriculata Edward Lee 1936-1-12 1713 Contra Costa w-facing slope immediately s Nortonville Comment
  UC692483  Arctostaphylos auriculata Mary L. Bowerman 1931-9-20 1044 Contra Costa w edge Rock City; Mount Diablo Comment
  UCD162927  Arctostaphylos auriculata D. O. Burge; K. Zhukovsky 2015-6-6 1747 Contra Costa Mount Diablo. 515 Comment
  UC2028008  Arctostaphylos auriculata Barbara Ertter with Amy Rusev 1998-1-17 15895 Contra Costa Lime Ridge Open Space at NW foot of Mount Diablo. Comment
  CHSC83112  Arctostaphylos canescens subsp. sonomensis Walter Knight 1968-1-15 Contra Costa Tilden Park Bot. Gard. Comment
  CAS-BOT-BC23553  Arctostaphylos crustacea Neil Havlik; Walter Knight 1982-11-12 4549 Contra Costa Briones Regional Park adjacent to russell Tree Farm. 327 Comment
  CAS-BOT-BC23591  Arctostaphylos crustacea Walter Knight; Irja Knight 1980-3-16 3715 Contra Costa Sobrante Ridge between Heavenly Ridge Lane and Castro Ranch road. Comment
  UC2029046  Arctostaphylos crustacea subsp. crustacea Barbara Ertter with Linda Vorobik 2000-1-9 16889 Contra Costa Las Trampas Regional Wilderness in East Bay Hills west of Danville. Comment
  CAS-BOT-BC24809  Arctostaphylos glandulosa subsp. glandulosa Paul F. Covel 1938-2-20 1113 Contra Costa Moraga Ridge above Pinehurst. Comment
  RSA367269  Arctostaphylos glandulosa subsp. glandulosa H. E. McMinn 1923-3-6 875 a Contra Costa Mt. Diablo. Comment
  CAS-BOT-BC24657  Arctostaphylos glauca H. E. McMinn 1922-6-21 89 Contra Costa N. slope of Mt. Diablo. Comment
  UC1795672  Arctostaphylos glauca Barbara Ertter, Holly Forbes 1996-2-11 14548 Contra Costa North side Mount Diablo; Murchio Gap on Median Ridge Road, chaparral on serpentine-derived clay; regrowth after burn of several years previous 731 Comment
  RSA632827  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27590 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  RSA0002606  Arctostaphylos laevigata Alice Eastwood 1922-3-17 11082 Contra Costa Mt. Diablo Comment
  SEINET12524593 Image available Arctostaphylos manzanita L. S. Rose 1934-1 34040 Contra Costa S. slope mt. diablo, 8 mi NE. Danville. Comment
  CAS-BOT-BC38878  Arctostaphylos manzanita subsp. laevigata Rimo Bacigalupi 1924-2-17 s.n. Contra Costa Lower slopes of Mt. Diablo on old wagon road to summit from Mt. Diablo Country Club (Black Hills) 457 Comment
  CDA9746  Arctostaphylos manzanita subsp. laevigata D. G. Kelch, D. A. Weinstein 1995-3-6 s.n. Contra Costa Rock City. Mt. Diablo. Comment
  JEPS112741  Arctostaphylos manzanita subsp. laevigata Dean W. Taylor 2001-3-21 17613 Contra Costa Mount Diablo; Mount Diablo State Park, near Balancing Rock (ridge forming southerly watershed boundary Curry Creek Canyon) 487 Comment
  JEPS38920  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1930-6-18 349 Contra Costa Rock City Canyon Mount Diablo 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
  RSA44373  Arctostaphylos manzanita subsp. laevigata L. S. Rose 1949-3-24 49014 Contra Costa W slope of Mt Diablo, near Rock City. 609 Comment
  UC549595  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-10-6 849 Contra Costa Mount Diablo Comment
  UC549750  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 689 Contra Costa Mt. Diablo Comment
  UC692220  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1932-9-5 1544 Contra Costa large spur on meridian which heads into Sycamore Canyon (crest of ridge); Mount Diablo Comment
  CAS-BOT-BC24383  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1932-9-5 1545 Contra Costa Mount Diablo. On meridian, which heads into Sycamore canyon: crest of ridge. Comment
  CAS-BOT-BC24390  Arctostaphylos manzanita subsp. manzanita Walter Knight; Irja Knight 1980-3-16 3713 Contra Costa Opposite 5996 Skyline Drive, El Sobrante. Comment
  CAS-BOT-BC24392  Arctostaphylos manzanita subsp. manzanita Walter Knight 1979-5-31 3376 Contra Costa Morgan Territory Regional Land Bank. Comment
  CAS-BOT-BC24398  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1932-1-19 1074 Contra Costa Mount Diablo, Inner Black Hills. Just over ridge. Comment
  POM300729  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1932-1-23 1076 Contra Costa Sycamore Canyon, east fork: East edge of chaparral near canyon bottom. Comment
  RSA164644  Arctostaphylos manzanita subsp. manzanita P. C. Everett 1963-11-19 24552 Contra Costa Mt. Diable, below Gibraltar Rock.Mt. Diablo. Comment
Read comments Aug 10 2011
  UC1120869  Arctostaphylos pallida Beryl O. Schreiber 1938-9-18 2548 Contra Costa 0.5 mi ssw Round Top; Concord Quadrangle Comment
  UC2070442  Arctostaphylos tomentosa Barbara Ertter with Kevin Hintsa et al. 2003-4-20 18160 Contra Costa Wall Point Road east of Emmons Canyon Road, west side of Mount Diablo. Comment
  UC1120116  Arctostaphylos tomentosa subsp. crustacea C. M. Belshaw 1936-2-16 1590 Contra Costa 2 1/2 mi nw Lafayette; Concord Quadrangle, Lafayette Ridge Comment
  UC549445  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 632 Contra Costa Moraga Ridge Comment
  UC549462  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 634 Contra Costa Moraga Ridge Comment
  UC549469  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 627 Contra Costa Moraga Ridge Comment
  UC549471  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 624 Contra Costa Moraga Ridge Comment
  UCD51336  Arctostaphylos tomentosa subsp. rosei Edward Lee 1935-12-28 1704 Contra Costa Western end of Las Trampas Ridge, Contra Costa County. 426 Comment
  HSC3262  Aristolochia californica Greg Bos 1963-3-9 28 Contra Costa Pinole Valley Rd., SE of Pinole 61 Comment
  RSA51344  Aristolochia californica P. H. Raven 1950-3-5 s.n. Contra Costa Happy Valley Road .9 miles above intersection with Upper Happy Valley Road 183 Comment
  UCSB24029  Aristolochia californica Olson, Glen 1968-3-21 Contra Costa Fifty yards on the north side of School Street, 0.4 mile east of its junction with Moraga Road in Lafayette 106 Comment
  UC691351  Arnica discoidea Mary L. Bowerman 1931-5-16 849 Contra Costa summit Meridian Peak; Mount Diablo Comment
  CDA37337  Artemisia biennis D. G. Kelch 2010-10-31 10 .442 Contra Costa Valley north of Alhambra Valley Rd., south of Pinole Peak, east of Hercules. Comment
  UC2070630  Artemisia biennis Barbara Ertter 2005-8-18 18640 Contra Costa Mudflats on SE side of San Pablo Reservoir in East Bay Hills, east of San Pablo Dam Road between San Pablo and Orinda, access between HQ and boat launching area [reservoir way down this year while being drained for seismic work on dam], with extensive Artemisia biennis. Comment
  JEPS36967  Artemisia californica W. L. Jepson 1916-10-22 6852 a Contra Costa Las Trampas Ridge southern Contra Costa County, Las Trampas Ridge Comment
  UC1584665  Artemisia douglasiana Jerry Powell 1990-8-29 1592 Contra Costa Antioch National Wildlife Refuge Comment
  CAS-BOT-BC90299  Artemisia douglasiana John Thomas Howell; Gordon H. True 1972-6-29 48945 Contra Costa Low places along Byron Hot Springs Road where water has stood, southeast of Byron Comment
  UC2028360  Artemisia douglasiana Barbara Ertter with Tony Morosco 1998-7-11 16366 Contra Costa North base of Mount Diablo, margin Bruce Lee Road between Mitchell Canyon and Back Creek Comment
  UC1607658  Asarum caudatum Barbara Ertter, Chris Thayer 1993-5-7 11698 Contra Costa on Wildcat Canyon Road Hopkins Spring 1/2 mi se Inspiration Point (East Bay Municipal Utilities District Land e of Tilden Park); e of Tilden Park, Hopkins Spring 304 Comment
  UC169478  Asarum caudatum Katharine Brandegee Apr 1913 Contra Costa Eastport, Oakland Hills? Comment
  SFV8432  Asarum caudatum A. Smith 1972-5-21 39 Contra Costa Roadside in Flicka Ridge area. Canyon. 91 Comment
  UC219339  Asclepias californica H. M. Hall 1922-5-7 11804 Contra Costa Marsh Creek; Mt. Diablo Comment
  UC2028979  Asclepias californica Barbara Ertter 2000-5-14 17019 Contra Costa Donner Basin on north side of Mount Diablo, upper end of Falls Trail near junction of Cardinet Oaks Road. Comment
  JEPS15235  Asclepias cordifolia Rimo Bacigalupi with G. Thomas Robbins 1956-5-11 5642 Contra Costa 1/4 mi above and nw Glen Frazier Station on the Santa Fe Railway; Franklin Canyon 106 Comment
  UC691840  Asclepias fascicularis Mary L. Bowerman 1932-11-25 1667 Contra Costa Silver Spring Mount Diablo Comment
  UC168336  Astragalus asymmetricus Katharine Brandegee 1908-1 Contra Costa near Antioch; near Antioch Comment
  UCD148254  Astragalus asymmetricus Robert E. Preston 2013-6-21 2916 Contra Costa 3.9 mi SW of Byron. 140 Comment
  UCD104630  Astragalus asymmetricus C. A. Hooper 1936-8-5 s.n. Contra Costa Pittsburg. Comment
  CAS-BOT-BC177884  Astragalus didymocarpus var. didymocarpus Robert Hoover 1935-3-10 308 Contra Costa Kirker Pass Comment
  CAS-BOT-BC178473  Astragalus gambelianus Lincoln Constance; Carl W. Sharsmith; Howard S. Reed 1940-4-27 2572 Contra Costa Pine Canyon, base of Mount Diablo 304 Comment
  CAS-BOT-BC178472  Astragalus gambelianus H. L. Mason 1928-4-26 4380 Contra Costa Berkely - Oakland Hills Comment
  POM264824  Astragalus gambelianus Lincoln Constance, Carl W. Sharsmith 1940-4-27 2572 Contra Costa Pine Canyon, base of Mt Diablo 305 Comment
  CAS-BOT-BC193336  Astragalus tener var. tener Alice Eastwood 1914-3-14 3818 Contra Costa Byron Springs Comment
  CHSC67945  Astragalus tener var. tener James D. Jokerst 1989-3-28 3053 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. 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
  UC14319  Athysanus pusillus W. C. Blasdale 1896-2-28 Contra Costa Clayton Comment
  JEPS99036  Atriplex Robert E. Preston & Eva Buxton 1994-8-4 676 Contra Costa E end of Briones Valley, W of Marsh Creek Reservoir. 60 Comment
  UCD97866  Atriplex Robert E. Preston; Eva Buxton 1994-8-4 676 Contra Costa east end of Briones Valley, west of Marsh Creek Reservoir. 60 Comment
  SEINET9292764  Atriplex cordulata Robert Preston, Muth, David 1993-9-7 634 Contra Costa Briones Valley, ca. 1 mile W of Marsh Creek Reservoir, in overflow channel of stock pond; in unsurveyed section. USGS Antioch South 7.5' quad. With Lotium multiflorum, Hordeum marinum ssp. gussoneanum. Comment
  RSA0036964  Atriplex coronata D. G. Kelch, Mike Perlmutter 2011-9-23 11 .760 Contra Costa Entry to Discovery Bay. 2 Comment
  CAS-BOT-BC168540  Atriplex coronata John Thomas Howell 1930-9-28 5503 Contra Costa 5.4 miles from Byron on Marsh Creek Road Comment
  RSA454002  Atriplex coronata E. E. Stanford 1930-08 1869 Contra Costa near Old River. Comment
  CDA9500  Atriplex depressa D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .227 Contra Costa Byron Airport. Comment
  RSA293440  Atriplex joaquinana Reino Alava 1958-6-6 2136 Contra Costa 3 miles south of Byron, between the highway south and the railroad track Comment
  CDA23285  Atriplex lentiformis subsp. breweri F. T. Swett 1960-9-23 Contra Costa Hill Girt Farm, Alhambra Valley, Martinez. 0 Comment
  CDA37400  Atriplex prostrata D. G. Kelch, Mike Perlmutter 2011-9-23 11 .763 Contra Costa Antioch. Dow Wetlands. Comment
  UC2027887  Atriplex prostrata Barbara Ertter with Chris Thayer 1996-10-25 15361 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park. Comment
  SEINET11263176  Atriplex rosea Barbara Ertter, Chris Thayer 1996-10-25 15367 Contra Costa NW flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park, intermittent surface water left in shaded stream in valley oak woodland and grassland.; 0 91 Comment
  UC217190  Atriplex rosea H. M. Hall 1919-11-14 10971 Contra Costa n Byron; n of Byron Comment
  UC2029106  Atriplex semibaccata Barbara Ertter 1990-9-30 9655 Contra Costa SE of Hilltop Mall in N Richmond, near Day's Inn. Comment
  UCD97697  Atriplex semibaccata Clyde L. Elmore 1964-10-6 s.n. Contra Costa 1/2 mile south of Orwood Road, in Orwood Resort, 4-5 miles east of Brentwood. Comment
  CAS-BOT-BC146024  Avena barbata John Thomas Howell 1983-5-12 54745 Contra Costa Mount Diablo. Juniper Camp. 914 Comment
  CHSC21639  Avena fatua Willis Ball 1975-3-9 478 Contra Costa Contral Loma Regional Park. In area #8. Ca. 600 yds. sw of main parking lit ca. 800 yds. w of Contra Loma Blvd. 152 Comment
  RSA385404  Avena fatua H. de Forest 1930-7-5 s.n. Contra Costa Roadside near Moraga. Comment
  SEINET5607235 Image available Avena fatua Rachel Van Noord 1998-1 12 Contra Costa Dinosaur Hill Park, Pleasant Hill Comment
  UCD38559  Avena fatua var. glabrata Beecher Crampton 1956-5-14 3418 Contra Costa 0.5 mile west of Martinez. Comment
  UCD56084  Avena occidentalis G. Douglas Barbe 1983-5-22 4081 Contra Costa Mount Diablo State Park. 877 Comment
Read comments Nov 19 2009
  SEINET8718193 Image available Avena sativa Laura Zeller 1965-1 81 Contra Costa Just E of the University of California Botanical Garden. Comment
  JEPS104734  Baccharis pilularis John L. Morrison 1936-8-30 1848 Contra Costa Shasta Road, Wildcat Canyon Comment
  UC691906  Baccharis pilularis Mary L. Bowerman 1930-9-27 470 Contra Costa west road 2 miles from entrance North Road; Mount Diablo Comment
  CAS-BOT-BC98190  Baccharis salicifolia Mary L. Bowerman 1932-3-23 1134 Contra Costa Mount Diablo - Donner Canyon stream bed. 152 Comment
  UC36778  Balsamorhiza deltoidea J. Burtt Davy 1895-4-7 910 Contra Costa Antioch Comment
  CDA31460  Barbarea orthoceras D. G. Kelch 2006-5-27 6 .218 Contra Costa Pinole Valley Park, S of Pinole Valley Road near crest of El Sobrante Ridge. Comment
  UC691249  Barbarea orthoceras Mary L. Bowerman 1933-4-9 1841 Contra Costa Donner Canyon, west fork: By trail. Comment
  UCSC000661  Bellardia trixago Mrs. G. Garlichs 1938-5-2 s.n. Contra Costa Wine Haven, Point Richmond Comment
  POM44500  Bellardia trixago C. C. Hall 1911-5-20 8835 Contra Costa Contra Costa County: rounded hills near concord, alt 100m 100 Comment
  UC2027719  Berberis aquifolium var. dictyota Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15515 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UC1076434  Berberis pinnata Herbert L. Mason 1925-3-10 1298 Contra Costa Sycamore Canyon; Mt Diablo Comment
  JEPS111524  Beta vulgaris D. G. Kelch 2005-5-5 05 .209 Contra Costa Point Pinole - Giant Marsh Giant Salt Marsh 3 Comment
  JEPS111807  Beta vulgaris D. G. Kelch 2003-8-13 03 .97 Contra Costa Martinez Marsh 1 Comment
  UC1136356  Beta vulgaris H. S. Yates 1934-9-2 4063 Contra Costa Mt. Diablo 137 Comment
  CAS-BOT-BC102085  Bidens frondosa Walter Knight 1978-8-27 3153 Contra Costa Contra Loma Regional Park 30 Comment
  CAS-BOT-BC102086  Bidens frondosa Walter Knight; Joanne Dean 1978-8-14 3157 Contra Costa Browns Island Comment
  CAS-BOT-BC102034  Bidens laevis James McMurphy 1908-10-18 s.n. Contra Costa Antioch Comment
  JEPS96225  Bidens laevis Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10873 Contra Costa just w Antioch marina (e end of marsh across from marina); Dow Wetlands Preserve Comment
  SEINET3146091  Bidens laevis L. S. Rose 1938-10-28 38311 Contra Costa Byron 3 Comment
  NY31019  Blennosperma californicum R. F. Hoover 1938-2-21 2750 Contra Costa Byron Hot Springs Comment
  NY30996  Blennosperma californicum R. C. F. Bacigalupi 1957-3-27 5761 Contra Costa At junction of Lone Tree Way and Hillcrest Ave. (rd.), about 0.5 mile west of Lone Tree School 39.3 Comment
  NY31015  Blennosperma californicum L. S. Rose 1933-3-10 33008 Contra Costa Marsh Creek Comment
  NY31016  Blennosperma californicum A. M. Carter 1937-3-28 1225 Contra Costa Marsh Creek road, 15 miles east of Concord 152.4 Comment
  CHSC23347  Blennosperma nanum Willis Ball 1975-3-2 470 Contra Costa Contra Loma Regional Park. In area #1. On small hill ca. 10 yds N of N end of main parking lot at S end of lake. 36 Comment
  RSA31357  Blennosperma nanum Joseph A. Ewan 1935-3-10 9154 Contra Costa In hills above Nortonville. Comment
  CAS-BOT-BC100704  Blennosperma nanum var. nanum Robert F. Hoover 1938-2-21 2750 Contra Costa Byron Hot Springs Comment
  CAS-BOT-BC127912  Blepharizonia laxa C. C. Parry 1881-1-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC127913  Blepharizonia laxa M. K. Curran 1883-10-1 s.n. Contra Costa Antioch Comment
  UC88955  Blepharizonia laxa Katherine Curran (= Katherine Curran Brandegee) 1883-10-1 Contra Costa near Judsonville - Antioch Comment
Read comments Jan 22 2009
  JEPS18818  Blepharizonia plumosa R. F. Hoover 1937-9-2 2708 Contra Costa Walnut Creek Comment
  POM118273  Blepharizonia plumosa Harriet Ann Walker 1916-8-28 3922 Contra Costa Los Medanos, near Antioch Comment
Read comments Dec 16 2012
  UC194218  Blepharizonia plumosa H. M. Hall 1916-8-17 Contra Costa Los Medanos, Suisun Bay, San Francisco Bay Region San Francisco Bay Region, Suisun Bay, Los Medanos 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
  UCSB2219  Boechera breweri Keator, Glenn 1959-7-1 Contra Costa Growing 1/4 miles above Laurel camp on Mt. Diablo Comment
  SBBG2385  Boechera breweri subsp. breweri H. and M. Dearing 1940-3-20 4125 Contra Costa near summit of Mt 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
  UC186865  Boechera breweri subsp. breweri J. W. Congdon 1896-5-8 Contra Costa Summit of Mount Diablo Mount Diablo Comment
  CAS-BOT-BC15960  Boechera breweri subsp. breweri E. W. Hicks 1917-3-24 111 Contra Costa Mount Diablo. Western slope of the mountain. 1067 Comment
  CAS-BOT-BC15962  Boechera breweri subsp. breweri John Thomas Howell 1926-3-7 1671 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC15968  Boechera breweri subsp. breweri W. W. Carruth 1901-3-1 s.n. Contra Costa Mount Diablo near summit. Comment
  CHSC79610  Bolboschoenus maritimus subsp. paludosus G. F. Hrusa; D. Crowe 1998-5-8 14395 Contra Costa Sacramento-San Joaquin River Delta. At E end of Dow Chemical property in Pittsburg. 15 Comment
  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-BC95329  Bowlesia incana Mary L. Bowerman 1935-6-1 3098 Contra Costa Pine-Mitchell divide, Mount Diablo 975 Comment
  UC2028574  Bowlesia incana Barbara Ertter with Stu Garrett 1997-3-29 15538 Contra Costa West side Mount Diablo, north end of Mothers Trail. Comment
  RSA0029674  Brachypodium distachyon Barbara Ertter, Dan Norris 1998-6-18 16222 Contra Costa Devil's Slide trail from Knobcone Point Road, south side of Mount Diablo. 457 Comment
  UC691083  Brassica nigra Mary L. Bowerman 1938-5-25 3633 Contra Costa Mount Diablo. North Road 2 miles from North Gate. 182 Comment
  CDA23561  Brassica rapa D. G. Kelch 2008-3-3 8 .029 Contra Costa Carquinez Strait; Crockett. Under Zampa (Carquinez) Bridge. Comment
  CDA3604  Brassica rapa A. G. Murdock, D. G. Kelch 2004-3-19 217 Contra Costa Carquinez Strait Region; Luzon. Sycamore Avenue just east of Rodeo/Hercules where train crosses Highway 4 (Luzon). 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
  CAS-BOT-BC106324  Brickellia californica R. Bacigalupi 1922-9-24 s.n. Contra Costa Mitchell Canyon - Mt. Diablo Comment
  JEPS99490  Briza maxima Mary Bowerman 1995-6-4 Contra Costa Mount Diablo, Pine canyon by fire road. Comment
  UC2028494  Briza maxima Barbara Ertter 1998-5-3 16071 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, between Wall Point and Secret Trail junction Comment
  UC1555378  Brodiaea elegans subsp. elegans Jerry Powell 1988-5-18 1538 Contra Costa meadow west Richmond, Point Molate Comment
  UC768749  Brodiaea terrestris subsp. terrestris R. F. Hoover 1937-5-14 2122 Contra Costa Byron Hot Springs Comment
  POM300680  Bromus carinatus Mary L. Bowerman 1935-5-16 3010 Contra Costa Behind Gabriel-Hinks' (east side of North Peak) 290 Comment
  UCD58246  Bromus carinatus A. A. Beetle 1942-3-22 2931 Contra Costa Brooks Island in San Francisco Bay. Comment
  UCD58300  Bromus carinatus G. Thomas Robbins 1959-4-18 3991 Contra Costa Along Western Drive. Near and north of Pt. Richmond. Western base of Potrero Hills. Richmond. 4 Comment
  SEINET11268161  Bromus carinatus var. carinatus Barbara Ertter 1998-4-4 15969 Contra Costa Northwest of Mount Diablo, Fossil Hill, Middle of NE-facing slope.; 0 122 Comment
  UCD146711  Bromus catharticus G. F. Hrusa; D. Crowe 1998-5-8 14384 Contra Costa Sacramento-San Joaquin River Delta. Dow Ecological Reserve on Dow Chemical property at Pittsburg. 5 Comment
  CAS-BOT-BC156061  Bromus diandrus D. E. Breedlove 1970-4-18 17439 Contra Costa At the north edge fo Lafayette above Laurel Drive. 243 Comment
  CDA28880  Bromus diandrus D. G. Kelch 2006-5-7 6 .162 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  JEPS100025  Bromus diandrus S. O'Neil 2003-5-7 SEO 29 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS127239  Bromus diandrus Lowell Ahart, Josephine Guardino 2016-4-19 20790 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Dam, approximately 25 miles (air) southwest to Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  UC691228  Bromus diandrus Mary L. Bowerman 1935-5-3 2954 Contra Costa below Garden-of-the-Jungle Gods (Mount Diablo, Fossil Ridge); Mount Diablo, Fossil Ridge Comment
  UCD36912  Bromus diandrus Beecher Crampton 1956-5-14 3378 Contra Costa 4.6 miles south of city of Antioch, on Empire Mine Drive, at head of Horse Valley. Comment
  CAS-BOT-BC156068  Bromus diandrus Mary L. Bowerman 1935-5-25 3068 Contra Costa South of the summit and east of the haripin turn on the highway. 1066 Comment
  CHSC116659  Bromus hordeaceus Lowell Ahart; Josephine Guardino 2016-4-19 20791 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides of the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  UC692343  Bromus hordeaceus Mary L. Bowerman 1931-5-13 839 Contra Costa Mount Diablo, Pine Canyon, 1 mi above spring Pine Canyon; Mount Diablo, Pine Canyon Comment
  UC697135  Bromus hordeaceus Mary L. Bowerman 1931-5-13 839 a Contra Costa Mount Diablo, Pine Canyon, 1 mi above spring Pine Canyon; Mount Diablo, Pine Canyon Comment
  UCD58674  Bromus hordeaceus L. S. Smith 1914-5-9 UCX 283 Contra Costa Mt. Diablo. West slope. Comment
  UC2028545  Bromus hordeaceus Barbara Ertter 1998-4-4 15949 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, grasslands along creek south of Indian Valley School. Comment
  UCD36919  Bromus madritensis Beecher Crampton 1956-5-14 3395 Contra Costa 3.7 miles southeast of Clayton, on Marsh Creek Road. Comment
  UCD58988  Bromus madritensis Walter Knight 1967-7-9 s.n. Contra Costa Botanical Garden, Tilden Park. Comment
  CAS-BOT-BC162354  Bromus madritensis Mary L. Bowerman 1932-4-27 1371 Contra Costa Mount Diablo. Oyster RIdge, south face, canyon west of Riggs Canyon. 289 Comment
  UC691209  Bromus madritensis subsp. madritensis Mary L. Bowerman 1935-5-16 2986 Contra Costa Mount Diablo, Russelman Park Russelman Park; Mount Diablo, Russelman Park 381 Comment
  UC691211  Bromus madritensis subsp. madritensis Mary L. Bowerman 1935-5-16 3012 Contra Costa behind Gabriel-Hinks (Mount Diablo, e side of North Peak); Mount Diablo, North Peak 289 Comment
  UC37706  Bromus madritensis subsp. rubens J. Burtt Davy 1895-4-7 890 Contra Costa Antioch Comment
  CDA29488  Bromus pseudolaevipes D. G. Kelch, Troy MacGregor 2009-5-1 9 .276 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  UC677567  Bromus racemosus P. F. Knowles B 72 Contra Costa 1 mi w of Rodeo Comment
  UCD59584  Bromus rubens P. B. Kennedy 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  CDA15253  Bromus stamineus G. F. Hrusa, D. Crowe 1998-5-8 14384 Contra Costa Sacramento Delta; Annual on edge of +- disturbed roadside adjacent to wetland in Dow Ecological Reserve on Dow Chemical property at Pittsburg. Uncommon here. Comment
  SEINET4343725 Image available Bromus sterilis Barbara Ertter, Mary Bowerman 1995-5-7 14053 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton Comment
  JEPS99574  Bromus tectorum Mary L. Bowerman 1978-5-26 Contra Costa Mount Diablo. N of Lower Summit parking lot. Comment
  RSA720800  Bromus tectorum Mary L. Bowerman 1978-5-26 s.n. Contra Costa Mount Diablo. N of Lower Summit parking lot. Comment
  UC606723  Bromus trinii Edward Lee 1936-4-19 1970 Contra Costa San Francisco Bay, Red Rock Red Rock; San Francisco Bay, Red Rock Comment
  UC692338  Bromus trinii Mary L. Bowerman 1935-4-17 2844 c Contra Costa North Road 2 mi from North Gate (immediately e of section line); Mount Diablo, North Road 304 Comment
  UCSC000102  Calamagrostis rubescens G. L. Stebbins Jr. 1942-8-16 3297 Contra Costa 3 miles north of Berkeley, opposite army camp Berkeley - Wildcat Canyon Comment
  JEPS99499  Calandrinia breweri Mary Bowerman 1979-5-2 Contra Costa Comment
  UC692663  Calandrinia breweri Mary L. Bowerman 1932-4-16 1338 Contra Costa Eagle Point Ridge s 1682 point; Mount Diablo Comment
  UC1136613  Calandrinia ciliata R. W. Lundh 1933-3-25 219 Contra Costa 1 mi w and 1/2 mi n Lafayette (Acalanes Grant); Concord Quadrangle Comment
  UC85557  Calandrinia ciliata Katharine Brandegee May, 1889 Contra Costa Antioch Comment
  UCD100165  Calandrinia ciliata Beecher Crampton 1950-4-16 512 Contra Costa Along R.R. embankment, Giant. Comment
  JEPS65180  Callitriche longipedunculata L. R. Heckard 1971-4-15 2487 Contra Costa In field at intersection of Holey Road, south of Byron Comment
  UC570769  Callitriche marginata H. L. Mason 1932-3-20 6852 Contra Costa Deer Valley; Briones Road Comment
  UC3357  Calochortus albus W. H. Brewer 1862-5-24 1157 Contra Costa se of Mt. Diablo Comment
  JEPS108220  Calochortus albus David Gowen 2005-4-30 275 Contra Costa Los Vaqueros Watershed. Hills above west side of valley at intersection of Round Valley and Morgan Territory Regional Preserves. Comment
  SEINET8495447 Image available Calochortus albus Susan Keefer 1969-5-2 33 Contra Costa 1.5 miles from Alamo, east base of Las Trampas Ridge, 5 miles west of Mt. Diablo. Comment
  UC2028974  Calochortus argillosus Barbara Ertter with Brad Olson et al. 2000-6-2 17296 Contra Costa north side Brushy Peak Regional Preserve NE of Livermore. Comment
  UCD164657  Calochortus luteus Henry House 1995-5-16 1995- 24 Contra Costa Adjacent to Highway 113, about 0.2 km south of Creek Road. 6 Comment
  UC2027929  Calochortus luteus Barbara Ertter with Dorothy Frantz 2001-5-10 17640 Contra Costa Diablo Foothills Regional Park, Pine Creek south of Castle Rock Recreation Area. Comment
  JEPS61709  Calochortus pulchellus W. L. Jepson 1918-6-3 7570 Contra Costa Donner Canyon Mt. Diablo 533 Comment
  SEINET5245480  Calochortus pulchellus Unknown 1995-6-15 02 Contra Costa Mount Diablo State Park Comment
  CAS-BOT-BC132499  Calochortus pulchellus W. W. Carruth 1900-4-1 s.n. Contra Costa Lafayette Comment
  CAS-BOT-BC270071  Calycadenia multiglandulosa H. M. Hall 1916-8-16 10274 Contra Costa Horse Valley, 9 km S of Antioch Comment
  UC197535  Calycadenia multiglandulosa H. M. Hall 1916-8-16 10274 Contra Costa 9 km s of Antioch; Horse Valley Comment
  UC697173  Calycadenia truncata Mary L. Bowerman 1931-9-12 1040 Contra Costa Mitchell Canyon, spur jutting into w fork Mount Diablo, Mitchell Canyon 838 Comment
  UC23188  Calystegia malacophylla subsp. pedicellata Edw. L. Greene 1892-6-25 Contra Costa Mt. Diablo Comment
  RSA760670  Calystegia purpurata William J. Ferlatte, L. Maynard Moe 1970-4-27 1236 Contra Costa San Francisco Bay, Red Rock Island. Comment
  UC1818948  Calystegia purpurata subsp. purpurata Barbara Ertter, volunteers 1996-5-11 14643 Contra Costa North Gate Road at northwest base of Mount Diablo, just barely inside state park boundary; along Little Pine Creek. 176 Comment
  UC1594199  Calystegia sepium subsp. binghamiae Jerry Powell 1991-8-15 1614 Contra Costa Antioch National Wildlife Refuge Comment
  UC1965404  Calystegia sepium subsp. binghamiae R. K. Brummitt and B. Ertter 2012-6-16 22059 Contra Costa Antioch, beside Plaza at water's edge at upper end of Suisun Bay Comment
  RSA710325  Calystegia subacaulis R. K. Brummitt, Barbara Ertter, N. A. Brummitt 1998-5-13 19841 Contra Costa S of Antioch, Black Diamond Mine Regional Park. 400 Comment
  UC1965403  Calystegia subacaulis R. K. Brummitt and B. Ertter 2012-6-17 22061 Contra Costa Berkeley Hills, Tilden Park, Seaview Trail north of Vollmer Peak 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
  RSA181415  Camissonia campestris subsp. campestris James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  UC107666  Camissonia campestris subsp. campestris Katharine Curran May 1883 Contra Costa Antioch Comment
  UC2028347  Camissonia contorta Barbara Ertter 1991-5-5 9780 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, ridge E of Coal Canyon, N-facing slope Comment
  JEPS125935  Camissonia ignota D. W. Taylor 2001-3-22 17616 Contra Costa Kreyenhagen Hills; Cedar Canyon, tributary to Zapato Chino Canyon, along southern flank of ridge forming divide with Garcia Canyon to the north; ca 5 air miles W of Avena Comment
Read comments Jun 18 2019
  UC2062661  Camissonia ovata Barbara Ertter 2002-5-16 17854 Contra Costa Richmond Field Station (UC-Berkeley). Comment
  UC20492  Camissoniopsis intermedia F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  UC635407  Camissoniopsis intermedia H. L. Mason 1929-3-15 5048 Contra Costa Nortonville Comment
  UC20498  Camissoniopsis micrantha W. H. Brewer 1862-4-24 988 Contra Costa Camp 68 Martinez Comment
  UC1051115  Campanula bononiensis N. Floy Bracelin 1943-9-5 2498 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC29002  Campanula exigua Edw. L. Greene 1892-6-20 Contra Costa Mount 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
  UC1789104  Campsis radicans Barbara Ertter 1998-5-10 16370 Contra Costa southeast edge of Antioch Marina. Comment
  CAS-BOT-BC37395  Cardamine californica Robert Francis Hoover 1938-2-21 2754 Contra Costa Point Richmond. Comment
  UC517996  Cardamine californica John Thomas Howell 1931-3-10 5757 Contra Costa on Livermore Road 7 mi from Clayton (e side Mt. Diablo); e side Mt. Diablo Comment
  LA204280  Cardamine californica John Thomas Howell; 1931-3-10 5757 Contra Costa Mt. Diablo, 7 miles from Clayton on Livermore road Comment
  UC905262  Cardamine californica var. californica J. A. Rattenbury 1949-3-10 128 Contra Costa half mi e Oakland Tunnel; e of Oakland Tunnel 243 Comment
  UC691070  Cardamine oligosperma Mary L. Bowerman 1931-3-29 618 Contra Costa East Cave Point Ridge , East Cave Point Ridge (Mount Diablo) Comment
  RSA134229  Cardamine oligosperma P. H. Raven, H. L. Mason, Robert Ornduff 1957-4-11 10623 Contra Costa Curry Canyon, four miles south of the Recreation Ground. Comment
  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
  CDA40557  Cardaria chalepensis V. Guise & B. Slate 2014-4-8 PDR# 070 P06223871 Contra Costa Clayton; 11501 Marsh Creek Road, 0.5 mile east of Morgan Territory Road, East Bay Regional Park District property. 0 Comment
  RSA8534  Carduus pycnocephalus J. T. Howell 1933-5-14 11246 Contra Costa Hills east of St. Mary's college Comment
  UC691372  Carduus pycnocephalus subsp. pycnocephalus Mary L. Bowerman 1935-6-28 3179 Contra Costa about the corral of the Old Sloan place (Inner Black Hills); Mount Diablo, Inner Black Hills Comment
  JEPS79443  Carduus tenuiflorus Edward Lee with Annetta Carter 1935-6-13 1431 Contra Costa s Richmond Panhandle Boulevard; Richmond Comment
  UC2028189  Carduus tenuiflorus Barbara Ertter 1998-5-3 16054 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. Comment
  CAS-BOT-BC17999  Carex aquatilis var. dives Walter Knight; Joanne Dean 1978-8-14 3142 Contra Costa Browns Island. Comment
  CAS-BOT-BC19203  Carex barbarae John Thomas Howell 1933-5-14 11236 Contra Costa St. Mary's College. Comment
  POM300641  Carex barbarae Mary L. Bowerman 1935-9-13 3344 Contra Costa Mount Diablo: Frog Pond, at head of Frog Pond Spring. Comment
  UC2028235  Carex globosa Barbara Ertter, Tony Morosco 1998-9-18 16439 Contra Costa Lime Ridge Open Space northwest of Mount Diablo. Comment
  UC2028412  Carex multicostata Barbara Ertter with Alan Whittemore, Joanne Kerbavaz, et al. 2001-5-22 17648 Contra Costa South side Mount Diablo, flat at confluence of West (Madrone) and East forks of Sycamore Creek Comment
  CHSC114386  Carex obnupta D. G. Kelch; Michael Park, Abigail Moore 2007-5-1 7251 B Contra Costa Along the old San Joaquin River Channel, S of Clifton Court Forebay and SE of Byron. 0 Comment
  JEPS111897  Carex obnupta D. G. Kelch 2004-7-9 04 .305 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  CAS-BOT-BC119014  Carex pellita Miss Mary Leolin Bowerman 1935-5-16 3000 Contra Costa Russelmann Park road at Gregory Ranch junction. 289 Comment
  CDA33135  Carex praegracilis D. G. Kelch, Andrew G. Murdock 2005-3-24 5 .064 Contra Costa Carquinez Strait Region; Southern Point Pinole. Comment
  UC2043055  Carex praegracilis Barbara Ertter with Brad Olson 1991-9-28 10853 Contra Costa S end San Pablo Reservoir between Orinda and El Sobrante. Comment
  SEINET11263976  Carex praegracilis Barbara Ertter, Dan Norris 2000-12-3 17553 Contra Costa South side of Mount Diablo, Devils Slide Trail above Sulfur Springs on nw fork of Sycamore Creek.; 0 427 Comment
  CAS-BOT-BC117547  Carex serratodens Lewis Samuel Rose 1935-5-16 35163 Contra Costa Mt. Diablo. Comment
  UC2029197  Carex serratodens Barbara Ertter with Michelle Lee et al. 2002-6-29 17964 Contra Costa Lower Curry Creek on east side of Mount Diablo, private property just above Morgan Territory Comment
  UC691954  Carex serratodens Mary L. Bowerman 1938-6-30 3706 Contra Costa Indian Ceremonial Spring Mount Diablo 1005 Comment
  CAS-BOT-BC117552  Carex serratodens Miss Mary Leolin Bowerman 1938-5-28 3640 Contra Costa Patens Spring (North Road, 1800 feet). 548 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
  UC593503  Carex subbracteata G. L. Stebbins Jr. 1936-5-9 1555 Contra Costa e side Wildcat Canyon; Berkeley Hills Comment
  UC1096  Carex tumulicola Jos. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  CAS-BOT-BC115561  Carex tumulicola Peter H. Raven 1957-7-5 11051 Contra Costa At tip of Point Isabel. Comment
  JEPS119399  Carex tumulicola J. Greenhouse with A. Doran, D. Kelch, H. Bartosh, J. Game, et al. 2012-3-20 5142 Contra Costa Brooks Island Comment
  CDA34365  Carthamus tinctorius E. Finley 1991-6-27 PDR 787956 Contra Costa Along Interstate 680 near Alamo. 0 Comment
  CDA966  Castilleja affinis D. G. Kelch 2005-6-14 5 .332 Contra Costa East Bay; San Pablo. North Alvarado Park, south of San Pablo Dam Rd. Comment
  RSA639387  Castilleja affinis H. P. Bracelin 1933-6-10 768 Contra Costa Near crest of hills north of Berkeley above Kensington. Comment
  UC1818874  Castilleja affinis subsp. affinis Barbara Ertter, Brad Olson 1994-5-7 12753 Contra Costa Send Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay. Hillside Comment
  UC26404  Castilleja affinis subsp. affinis W. H. Brewer 1862-5-15 1093 Contra Costa Kirker Pass Comment
  UC26516  Castilleja affinis subsp. affinis W. H. Brewer 1862-5-1 1041 Contra Costa Walnut Creek Comment
  UC2028183  Castilleja affinis subsp. affinis Barbara Ertter 1998-5-3 16068 Contra Costa SE end of Wall Point Road on southwest flank of Mount Diablo. Comment
  CHSC116632  Castilleja attenuata Lowell Ahart; Josephine Guardino 2016-4-19 20778 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 Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  UC691581  Castilleja attenuata Mary L. Bowerman 1933-5-4 1990 Contra Costa Rock City Ridge (= Fossil Ridge); Mount Diablo Comment
  JEPS70758  Castilleja densiflora subsp. densiflora L. R. Heckard 1971-4-22 2492 Contra Costa near Pinole (near U.S. Hwy 40 crossing, along railroad grade) Comment
  JEPS15210  Castilleja exserta subsp. exserta C. M. Belshaw 1936-5-9 2082 Contra Costa 0.5 mi n Nortinville; Mt. Diablo Quad. 274 Comment
  UC1081509  Castilleja foliolosa H. L. Mason 1928-3-4 4169 Contra Costa Shell Ridge Comment
  RSA0068053  Castilleja foliolosa Katie Gallagher, Nick Jensen 2014-4-26 197 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  JEPS11158  Castilleja rubicundula subsp. lithospermoides R. F. Hoover 1939-4-25 4064 Contra Costa Richmond hills* Richmond hills; Richmond Comment
  JEPS99573  Castilleja rubicundula subsp. lithospermoides Mary L. Bowerman 1978-5-24 Contra Costa Mount Diablo. Donner Canyon, west side trail of Hetherington Loop 2 Comment
  SEINET3839756  Castilleja rubicundula subsp. lithospermoides Unknown 1996-4-26 Contra Costa Franklin Canyon Road near the junction with McEwan Road in grassland Comment
  CAS-BOT-BC41015  Caulanthus flavescens Mary L. Bowerman 1935-4-22 2879 Contra Costa Mount Diablo. North Road 2 miles from North Gate, just west of chaparral. 213 Comment
  CDA43391  Caulanthus flavescens Mike Pitcairn & Dean Kelch 2015-3-6 s.n. Contra Costa Overlook Trail, Black Diamond Mines, East Bay Regional Parks. Comment
  CAS-BOT-BC41040  Caulanthus flavescens A. R. Kruckeberg 1949-4-16 1735 Contra Costa Above road, 2 miles inside old North Entrance to Mount Diablo State Park (not tollgate). Comment
  CAS-BOT-BC40508  Caulanthus lasiophyllus A. A. Heller 1908-4-17 8907 Contra Costa Hills three miles south of Antioch. 18 Comment
  POM11961  Caulanthus lasiophyllus var. rigidus Katherine Brandegee s.n. Contra Costa Byron Hot Springs. Comment
  CAS-BOT-BC48834  Ceanothus cuneatus H. E. McMinn 1923-3-6 887 Contra Costa Mt. Diablo Comment
  POM300720  Ceanothus cuneatus Mary L. Bowerman 1932-9-3 1531 Contra Costa Muir Area, burn (1931) Mt. Diablo Comment
  JEPS48720  Ceanothus cuneatus var. cuneatus W. L. Jepson 1945-3-11 27553 Contra Costa Moraga Ridge Comment
  UC1070938  Ceanothus cuneatus var. cuneatus H. S. Yates 1936-3-14 5363 Contra Costa 2.5 mi sw Round Valley; Mt. Diablo quad 457 Comment
  CAS-BOT-BC49716  Ceanothus cuneatus var. rigidus Brandegee 93 Contra Costa Nortonville Comment
  UCD166546  Ceanothus oliganthus Dylan O. Burge 2016-2-18 2047 Contra Costa Huckleberry Ridge. 390 Comment
  UC2062617  Ceanothus oliganthus var. oliganthus Barbara Ertter with Linda Vorobik 2002-4-6 17820 Contra Costa South flank of Mount Diablo, west fork of Alamo Creek at end of spur road under powerlines. Comment
  JEPS42416  Ceanothus oliganthus var. sorediatus W. L. Jepson 1943-4-24 20763 Contra Costa Moraga Ridge Oakland Hills Comment
  CDA7092  Centaurea calcitrapa D. G. Kelch, A. G. Murdock 2004-6-19 4 .281 Contra Costa Carquinez Strait Region; Crockett - Tormey Headlands. Along railroad tracks west of Carquinez Bridge Crockett (Valona). Comment
  JEPS99959  Centaurea calcitrapa A. Langston 2003-7-28 AL 76 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  HSC5243  Centaurea melitensis Greg Bos 1963-4-14 77 Contra Costa Bayshore freeway at Central Ave.; Richmond Flat Area 1 Comment
  UC1479603  Centaurea solstitialis Gloria Merrill 1980-5-30 Contra Costa ca. 2 mi w of junction with Marsh Creek Road El Camino (along Marsh Creek Road) Comment
  UC2028266  Centaurium davyi Barbara Ertter 1999-6-12 16714 Contra Costa West Branch Alamo Creek on south flank of Mount Diablo, along unofficial path running from north spur of Black Hawk Ridge Road to south spur off of Knob Cone Point Road (near powerline). Comment
  CDA35655  Centaurium tenuiflorum Vince Guise 2011-7-8 PDR# 1649686 Contra Costa San Ramon; 100 feet north of north end of Claremont Crest Way. 0 Comment
  UC1050885  Centranthus ruber N. Floy Bracelin 1942-5-17 1287 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC288541  Centromadia fitchii John Thomas Howell 1955-8-24 30904 Contra Costa Mt Diablo near Turtle Rock 259 Comment
  CAS-BOT-BC288548  Centromadia fitchii Mary L. Bowerman 1936-9-17 3548 Contra Costa Mount Diablo. North Rd 2.5 miles from North Gate: at roadside, slightly lower down, extending down the bank into grassland 243 Comment
  UC1069557  Centromadia parryi subsp. congdonii H. S. Yates 1934-9-2 4072 Contra Costa 1 mi ne Danville; Mt. Diablo Quadrangle Comment
  UCD130136  Centromadia parryi subsp. congdonii Robert E. Preston 1998-10-6 1179 Contra Costa San Ramon, in pasture on west side of San Ramon Valley Road, 0.2 mile north of Pine Valley Road. 129 Comment
  CAS-BOT-BC288880  Centromadia parryi subsp. congdonii David D. Keck 1933-11-2 2611 Contra Costa 2.7 miles N of Walnut Creek Comment
  CDA9504  Centromadia pungens D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .231 Contra Costa Byron Airport. Comment
  UCD148253  Centromadia pungens Robert E. Preston 2013-6-21 2915 Contra Costa 3.5 mi SW of Byron. 72 Comment
  CAS-BOT-BC279181  Centromadia pungens subsp. pungens Walter Knight; Irja Knight; et al 1978-9-5 3224 Contra Costa Browns Island Comment
  CAS-BOT-BC279193  Centromadia pungens subsp. pungens R. F. Hoover 1967-4-28 10515 Contra Costa Byron Hot Springs Comment
  JEPS25331  Centromadia pungens subsp. pungens Andrew P. Nelson 1961-4-6 713 Contra Costa about 3 mi s Byron (on Byron Road, near Southern Pacific Railroad crossing) Comment
  JEPS35034  Centromadia pungens subsp. pungens W. L. Jepson 1895-9-14 Contra Costa Walnut Creek Comment
  UC30957  Centromadia pungens subsp. pungens Jos. Burtt Davy 1900-6-7 6661 Contra Costa between Martinez and Pacheco Comment
  UC912272  Centromadia pungens subsp. pungens H. L. Mason 1929-9-21 5438 Contra Costa Marsh Creek Road 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-BC279200  Centromadia pungens subsp. pungens A. D. E. Elmer 1903-5-1 4392 Contra Costa Walnut Creek Comment
  JEPS35033  Centromadia pungens subsp. pungens W. L. Jepson 1896-5-31 Contra Costa Wild Cat Creek Comment
  UC2028506  Centromadia pungens subsp. pungens Barbara Ertter with Mary Bowerman, Lisa Schultheis 1998-8-21 16406 Contra Costa North side Shell Ridge Open Space west of Mount Diablo, near pond at Wiget Lane entrance Comment
  CAS-BOT-BC222902  Cephalanthus occidentalis Virginia I. Dains; Walter Knight 1986-8-8 5465 Contra Costa Jct Rock S1 & Werner Cut Comment
  JEPS111792  Cerastium fontanum subsp. vulgare D. G. Kelch 2005-5-13 05 .248 Contra Costa Martinez. South of oil refinery along Railroad tracks in fragment of habitat 28 Comment
  CAS-BOT-BC284220  Chaenactis glabriuscula var. megacephala Volney Rattan 1879-1-1 s.n. Contra Costa Antioch Comment
  UC692715  Chamaesyce ocellata Mary L. Bowerman 1932-8-27 1517 Contra Costa between Turtle Rock and pond to the south Comment
  CAS-BOT-BC66367  Cheilanthes covillei Mary L. Bowerman 1931-5-7 801 Contra Costa North Peak ridge Comment
  JEPS111800  Chenopodium murale D. G. Kelch 2004-7-9 04 .308 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  JEPS75512  Chlorogalum pomeridianum var. pomeridianum P. F. Yorks 1975-6-29 460 Contra Costa n. Briones Reservoir (ca. 1.5 km. s. of Bear Creek Rd. on Hampton Rd. in Hampton Rd. Natural Reserve); Hampton Rd. Natural Reserve 200 Comment
  CAS-BOT-BC264081  Chorizanthe uniaristata M. K. Curran 1884-1-1 s.n. Contra Costa Near Mt. Diablo Comment
  SD8106  Chorizanthe uniaristata Kate Curran June 1884 Contra Costa Antioch Comment
  UCSB27372  Chrysolepis chrysophylla Havlik, Neil 1969-7-18 Contra Costa About one-half mile from Skyline Blvd. on the Huckleberry Trail, Oakland Hills 396 Comment
  JEPS97617  Chrysolepis chrysophylla var. minor R. D. Stone 1980-7-13 265 Contra Costa NE of intersection of Skyline Blvd. and Snake Rd. Huckleberry Trail; Oakland Hills, near Alameda-Contra Costa county line Comment
  SJSU352  Chrysolepis chrysophylla var. minor A. W. Jacobs 1937-8-28 Contra Costa Moraga Ridge Comment
Read comments Jan 16 2012
  UCD110095  Chrysolepis chrysophylla var. minor Beecher Crampton 1957-11-20 4652 Contra Costa Alameda County line. Between Round and Redwood Regional Parks, Berkeley Hills. Comment
  JEPS116859  Cicendia quadrangularis David Gowen 2007-4-13 671 Contra Costa Diablo Foothills, west of the grassy field at Castle Rock Recreation Area. Comment
  JEPS89253  Cicendia quadrangularis J. B. Davy 1900-3-24 6516 Contra Costa Pt. Richmond Comment
  POM202440  Cicuta bolanderi J. W. Congdon 1893-7-30 s.n. Contra Costa Martinez. Comment
  CAS-BOT-BC284424  Cirsium brevistylum Alice Eastwood 1931-5-30 18618 Contra Costa Oak Spring Comment
  CDA33850  Cirsium occidentale D. G. Kelch 2010-5-15 10 .127 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 Comment
  UC691385  Cirsium occidentale var. californicum Mary L. Bowerman 1934-4-21 2538 Contra Costa Muir Area, upper brushy edge Mount Diablo, Muir Area Comment
  JEPS59168  Cirsium occidentale var. venustum W. L. Jepson 7571 a Contra Costa Mt. Diablo, Donner Canyon Contra Costa Comment
  JEPS111724  Cirsium vulgare D. G. Kelch 2004-7-9 04 .298 Contra Costa Crockett - Carquinez Scenic Drive Just west of Pt. Costa 60 Comment
  UC691387  Cirsium vulgare Mary L. Bowerman 1933-9-15 2442 Contra Costa s face of Meridian Peak; Mount Diablo, Hunt Spring 762 Comment
  UC1795899  Clarkia Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14638 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; grassy hillside. Comment
  JEPS100006  Clarkia affinis G. Smick 2003-4-29 GAS 154 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS107121  Clarkia affinis Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14224 Contra Costa Mt. Diablo, southeast of Walnut Creek, north of Curry Point 518 Comment
  UC692504  Clarkia affinis Mary L. Bowerman 1933-5-17 2095 Contra Costa due s Olafsons' barn (branch of Curry Cave Canyon); Mount Diablo Comment
  UC924273  Clarkia affinis H. S. Reed 1940-4-30 344 Contra Costa ne slopes Mount Diablo (Marsh Creek road) 243 Comment
  UCD102383  Clarkia affinis Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 1070 Comment
  RSA108230  Clarkia affinis Harlan Lewis, C. Epling 1947-5-2 196 Contra Costa March Creek Road, 1 mile west of Curry Creek Park Road Comment
  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
  CAS-BOT-BC163603  Clarkia biloba subsp. biloba C. L. Hitchcock 1928-6-5 15 Contra Costa Between Port Costa and Crockett, 1 mile west of Port Costa 5 Comment
  POM153229  Clarkia biloba subsp. biloba C. L. Hitchcock 1928-6-5 15 Contra Costa Between Port Costa and Crockett, 1 mile west of Port Costa. 5 Comment
  UC2042500  Clarkia concinna Holly Forbes and Barbara Keller 2009-5-29 Contra Costa Mt. Diablo State Park, along Deer Creek Rd. about 0.1 mi. from the entrance of Juniper campground. Comment
  JEPS111558  Clarkia concinna subsp. concinna A. G. Murdock 2003-6-24 117 Contra Costa Vaca Canyon Alhambra Valley Road on south bank 165 Comment
  JEPS43615  Clarkia concinna subsp. concinna W. L. Jepson 1918-6-3 7572 Contra Costa Donner Canyon, Mt. Diablo Comment
  UC634661  Clarkia concinna subsp. concinna David R. Goddard 1927-5-23 170 Contra Costa San Pablo Creek Canyon Comment
  UC2042956  Clarkia gracilis Barbara Ertter with David Gowen 2007-5-13 19014 Contra Costa Mount Diablo, W of Prospectors Gap Road just E of junction Meridian Ridge Road. Comment
  RSA60760  Clarkia purpurea subsp. purpurea Edward L. Greene 1889-05 s.n. Contra Costa Martinez Comment
  CAS-BOT-BC163665  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1931-5-16 855 Contra Costa Mount Diablo. Summit Comment
  CAS-BOT-BC163667  Clarkia purpurea subsp. quadrivulnera L. R. Abrams 1916-6-30 5712 Contra Costa Mt. Diablo near lake Comment
  CDA29803  Clarkia purpurea subsp. quadrivulnera D. G. Kelch, Troy MacGregor 2009-5-1 9 .263 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  JEPS23503  Clarkia purpurea subsp. quadrivulnera Edward Lee Greene 1886-5-25 Contra Costa Mt. Diablo Comment
  RSA448290  Clarkia purpurea subsp. quadrivulnera Bonnie C. Templeton 1962-6-10 s.n. Contra Costa Mt Diablo. Comment
  CAS-BOT-BC163666  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1931-4-25 760 Contra Costa Mount Diablo. Above junction of North and South Roads Comment
  CAS-BOT-BC163674  Clarkia purpurea subsp. quadrivulnera H. L. Mason 1928-4-26 4379 Contra Costa Around Berkeley and Oakland Comment
  UC1279898  Clarkia rubicunda Peter H. Raven 1957-6-20 10950 Contra Costa e end Tilden Regional Park (hillside at Inspiration Point) Comment
  UC1279947  Clarkia rubicunda Peter H. Raven 1957-7-5 11049 Contra Costa 0.2 mi from tip Point Richmond 106 Comment
  SEINET4149808  Clarkia rubicunda subsp. blasdalei K. Brandegee 1908-7-3 s.n. Contra Costa Point Isabel, N side a few feet above water, exact type locality Comment
  CHSC75102  Clarkia unguiculata Roger Thom 1987-5-18 12 Contra Costa 1.0 mi from intersection with Pleasant Hill Rd. on Reilez Valley Rd. Lafayette (1600 block). Road cut. 182 Comment
  JEPS111556  Clarkia unguiculata A. G. Murdock 2003-6-2 81 Contra Costa Franklin Canyon - McHarry Ranch Rd 126 Comment
  RSA297008  Clarkia unguiculata W. L. Jepson 1919-6-8 8325 Contra Costa Mt. Diablo Comment
  UC692494  Clarkia unguiculata Mary L. Bowerman 1930-6-3 235 Contra Costa 1.9 mi from North Gate (North Road); Mount Diablo 167 Comment
  CAS-BOT-BC165455  Clarkia unguiculata Mary L. Bowerman 1930-6-3 235 Contra Costa North Road 1.9 miles from North Gate 167 Comment
  SEINET10492200  Clarkia unguiculata Tim Holtsford 1992-6-13 Holtsford 920613 -1 Contra Costa Morgan territory rd, se of concord, 1.35 mi s of marsh creek rd (clayton rd), 0.1 Mi n of shale cliff court. Roadside pop, n-facing slope with oaks, digger Pines, poison oak. Most flowering over, fruits still green. Comment
  CAS-BOT-BC439165  Claytonia exigua subsp. exigua Mary L. Bowerman 1932-3-12 1110 Contra Costa Mount Diablo. Alamo Canyon 350 Comment
  CAS-BOT-BC439166  Claytonia exigua subsp. exigua Mary L. Bowerman 1932-3-12 1113 Contra Costa Mount Diablo. Alamo Canyon 365 Comment
  CAS-BOT-BC439167  Claytonia exigua subsp. exigua John Thomas Howell 1926-3-7 1676 Contra Costa 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
  CAS-BOT-BC439331  Claytonia gypsophiloides Alice Eastwood 1921-6-11 10600 Contra Costa Mt. Diablo summit Comment
  UC692537  Claytonia parviflora subsp. parviflora Mary L. Bowerman 1933-6-14 2276 Contra Costa e of Knob-cone Point; Mount Diablo, Inner Black Hills Comment
  CAS-BOT-BC439439  Claytonia parviflora subsp. parviflora Alice Eastwood 1915-5-3 s.n. Contra Costa Mt. Diablo 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
  UC692653  Claytonia parviflora subsp. parviflora Mary L. Bowerman 1933-5-3 1967 Contra Costa Mountain Springs Canyon Mount Diablo (just below the deer trough (Pioneer Road)) Comment
  UC1618110  Claytonia perfoliata Donald G. Nelson 1937-3-30 466 Contra Costa along Marsh Creek Rd. between Claytonville and Byron Comment
  CAS-BOT-BC440075  Claytonia perfoliata subsp. perfoliata John Thomas Howell 1931-3-10 5755 Contra Costa East side of Mt. Diablo 7 miles from Clayton on Livermore road Comment
  CAS-BOT-BC440076  Claytonia perfoliata subsp. perfoliata John Thomas Howell 1933-5-14 11273 Contra Costa Hills east of St. Mary's College Comment
  CAS-BOT-BC440077  Claytonia perfoliata subsp. perfoliata John Thomas Howell 1931-3-10 5755 Contra Costa East side of Mt. Diablo 7 miles from Clayton on Livermore road Comment
  CAS-BOT-BC443683  Claytonia perfoliata subsp. perfoliata Walter Knight 1965-3-1 904 Contra Costa Antioch dunes Comment
  JEPS112035  Claytonia perfoliata subsp. perfoliata D. G. Kelch 2003-3-21 03 .54 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  JEPS99970  Claytonia perfoliata subsp. perfoliata S. O'Neil 2003-2-18 SEO 5 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1057451  Claytonia perfoliata subsp. perfoliata G. Thomas Robbins 1937-4-25 148 Contra Costa 2 mi e Alamo Comment
  UC517966  Claytonia perfoliata subsp. perfoliata John Thomas Howell 1931-3-10 5755 Contra Costa 7 mi from Clayton (on Livermore road, e side of Mt. Diablo); Mt. Diablo Comment
  UC615386  Claytonia perfoliata subsp. perfoliata Beryl O. Schreiber 1932-2-28 32 Contra Costa near Concord Comment
  UC7914  Claytonia perfoliata subsp. perfoliata J. Burtt Davy 1895-4-7 983 Contra Costa Antioch Comment
  UC1051262  Clematis heracleifolia var. davidiana N. Floy Bracelin 1941-7-4 1459 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC91358  Clematis lasiantha H. E. McMinn 1922-6-2 129 Contra Costa Mount Diablo. Comment
  UC2031506  Clematis lasiantha Barbara Ertter with Travis Columbus 1990-6-10 9104 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill ridge ENE of Briones Peak Comment
  UC545776  Clematis lasiantha Annetta M. Carter 1935-6-1 874 Contra Costa n.w. slope of main peak Mt. Diablo 1005 Comment
  UC692071  Clematis lasiantha Mary L. Bowerman 1930-6-7 272 Contra Costa Meridian Peak summit Mt. Diablo Comment
  UC692099  Clematis lasiantha Mary L. Bowerman 1931-5-16 856 Contra Costa Meridian Peak summit Mt. Diablo Comment
  UC1051323  Clematis montana N. Floy Bracelin Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1980320  Clinopodium vulgare Barbara Ertter with David Gowen 2011-10-6 20919 Contra Costa Tilden Regional Park in hills east of Berkeley, lower Vollmer Peak Trail southeast of Big Spring picnic area 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
  UC41790  Collinsia bartsiifolia var. bartsiifolia Chestnut and Drew 1889-4-16 Contra Costa Concord Comment
  RSA408401  Collinsia bartsiifolia var. bartsiifolia H. de Forest 1930-4-6 s.n. Contra Costa [Unspecified] Comment
  UC1301183  Collinsia heterophylla Helen K. Sharsmith 1962-4-18 4949 Contra Costa vicinity of Martinez (near McEwen Road); San Francisco Bay Region 106 Comment
  UC691588  Collinsia heterophylla Mary L. Bowerman 1930-6-7 270 Contra Costa Mount Diablo, summit of Meridian Peak Meridian Peak; Mount Diablo, Meridian Peak Comment
  JEPS108350  Collinsia sparsiflora David Gowen, Mike Parks 2005-3-30 219 Contra Costa Mt. Diablo State Park. East facing slope at base of Alamo Canyon. 350 Comment
  SEINET12343275  Collinsia sparsiflora Ottley 1920-4-25 468 Contra Costa San Francisco Bay Region, Mitchell Canon, Mt. Diablo 305 Comment
  JEPS6336  Collinsia sparsiflora var. collina Mary L. Bowerman 1933-4-9 1836 Contra Costa w fork Donner Canyon Mount Diablo (Mount Diablo); Donner Canyon 243 Comment
  RSA32344  Collinsia sparsiflora var. collina Alice Eastwood 1914-5-30 4529 Contra Costa Mt. Diablo. Comment
  UC672473  Collinsia sparsiflora var. collina H. L. Mason 1928-4-29 4439 Contra Costa road opposite Devils Slide Mount Diablo 365 Comment
  JEPS21079  Collinsia sparsiflora var. collina Joe Zaerr 1958-4-12 71 Contra Costa Along Marsh Creek, Morgan Territory Road (NE slopes of Mt. Diablo) 243 Comment
  POM203034  Collinsia sparsiflora var. collina J. T. Howell 1934-4-8 11810 Contra Costa 7 miles from Clayton on road to Livermore. Comment
  JEPS75520  Conium maculatum P. F. Yorks 1974-5-19 159 A Contra Costa 1.4 km s of Bear Creek Road (n of Briones Reservoir, on Hampton Road in Hampton Road Natural Preserve); Hampton Road Natural Preserve 180 Comment
  UC691884  Conium maculatum Mary L. Bowerman 1935-6-8 3121 Contra Costa Mount Diablo, Muir Area Mount Diablo; , Muir Area Comment
  JEPS100237  Convolvulus simulans Dean W. Taylor 1990-4-23 10635 Contra Costa ca. 2 miles due W of Byron Hot Springs 30 Comment
  JEPS111678  Conyza bonariensis D. G. Kelch 2003-8-13 03 .119 Contra Costa Martinez - Train Station 2 Comment
  JEPS99954  Conyza bonariensis A. Langston 2003-9-16 AL 89 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2036956  Conyza bonariensis Mary L. Bowerman 1946-2-10 4082 Contra Costa Near C.C.C. Camp, Dan Cook Canyon, Mt. Diablo. Comment
  JEPS111731  Conyza canadensis D. G. Kelch 2004-9-2 04 .331 Contra Costa Pacheco Marsh east of Martinez and I-680 and east of lone tree Marsh 5 Comment
  UC1819029  Corallorhiza striata Barbara Ertter, Chris Thayer 1994-5-19 12785 Contra Costa Redwood Regional Park in Oakland Hills, mid-trail on Mill Trail southeast of Redwood Peak Comment
  JEPS54721  Cordylanthus nidularius J. T. Howell 1942-7-19 17044 Contra Costa NE of Deer Flat; Mt. Diablo; NE of Deer Flat, Mt. Diablo, Contra Costa Co. 609 Comment
  SEINET12765203  Cordylanthus pilosus subsp. pilosus Barbara Ertter, Lynne Hosley 1992-8-29 11266 Contra Costa East of Moutn Diablo in canyon along Coyote Trail.; 0 Comment
  CAS-BOT-BC209749  Cornus glabrata V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Comment
  UC692510  Cornus glabrata Mary L. Bowerman 1935-3-16 2735 Contra Costa e. fork Arroyo del Cerro Mt. Diablo; , e. fork Arroyo del Cerro 262 Comment
  JEPS111819  Cornus sericea D. G. Kelch 2003-8-13 03 .132 Contra Costa Pinole Creek 68 Comment
  CAS-BOT-BC209589  Cornus sericea H. E. McMinn 1922-5-30 34 Contra Costa By Pinehurst Resort in Large Redwood Canyon Comment
  CAS-BOT-BC190075  Cortaderia selloana Walter Knight 1978-9-19 3247 Contra Costa Browns Island. South Landing. Comment
  CDA42381  Cotoneaster pannosus D. G. Kelch 2012-5-27 12 .072 Contra Costa Carquinez Strait Region; Pinole Valley Park. 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
  JEPS37545  Cotula coronopifolia R. F. Hoover 1935-3-10 302 Contra Costa Nortonville Comment
  UC2043011  Cotula coronopifolia Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14915 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  UC692556  Crassula connata var. subsimplex Mary L. Bowerman 1931-3-21 586 Contra Costa Sycamore Canyon Mt. Diablo, Sycamore Canyon 335 Comment
  UC1121528  Crocanthemum scoparium var. vulgare R. W. Lundh Contra Costa San Francisco Quadrangle 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
  UC2028424  Crocosmia X crocosmiiflora Barbara Ertter 1996-9-19 15291 Contra Costa Cerrito Creek at base of Albany Hill, just west of San Pablo Avenue Comment
  OBI15230  Crossosoma californicum Neil Havlik 1968-3-21 82 Contra Costa Charles Lee Tilden Regional Park, E of Berkeley Comment
  JEPS79011  Croton californicus Edward Lee with Annetta Carter 1935-10-17 1626 Contra Costa Antioch; dunes Comment
  POM138276  Croton californicus C. F. Baker 1903-4-25 2825 Contra Costa Antioch. Comment
  UC765095  Croton californicus R. F. Hoover 1937-5-14 2114 Contra Costa Antioch sand-dunes Comment
  OBI22928  Croton setiger Janet Harford 1971-11-6 2 Contra Costa Mount Diablo, S side 610 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
  JEPS86564  Cryptantha flaccida Roy E. Buck 1988-4-23 902 Contra Costa 9 air km se Walnut Creek (ca 2.0 air km w of Moses Rock Spring, sw-facing slope on n side of North Gate Rd, 0.3 road mi se of park boundary); Mt. Diablo State Park 207 Comment
  SBBG28215  Cryptantha flaccida L. Constance, C. W. Sharsmith with H. S. Reed 1940-4-27 2573 Contra Costa Pine Cyn, base of Mt Diablo 304 Comment
  SBBG54489  Cryptantha flaccida L. R. Abrams 1921-5-25 8017 Contra Costa Mt Diablo near summit Comment
  UC1818922  Cryptantha flaccida Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14227 Contra Costa Mt. Diablo southeast of Walnut Creek, serpentine knoll ca 1/2 airmile north of Curry Point, grassland, oaks around knoll. . 487 Comment
  JEPS99579  Cryptantha microstachys Mary Bowerman 1978-5-14 Contra Costa Mount Diablo, East side of Eagle Peak, old mine wagon trail up Back Cannyon. Area of August 1977 burn. Comment
  UC691358  Cryptantha muricata Mary L. Bowerman 1931-5-7 808 Contra Costa North Peak Mount Diablo Comment
  UC2028057  Cryptantha muricata Barbara Ertter, Tony Morosco 1998-4-12 16017 Contra Costa Mount Olympia on north side of Mount Diablo, around rocks at summit. Comment
  JEPS108227  Cryptantha nevadensis David Gowen 2005-5-6 283 Contra Costa Mt. Diablo State Park. Rocky outcrops on the south side of North Peak. Comment
  UC691391  Cryptantha nevadensis var. rigida Mary L. Bowerman 1942-5-24 3841 Contra Costa Mount Diablo; Jim White Trail, W slope of Deer Ridge 853 Comment
  UC2032851  Cuscuta pacifica Doran, Andrew Scott 2012-3-20 722 Contra Costa Northeast part of Brooks Island, on trail to beach along spit. Comment
  JEPS25276  Cuscuta salina var. major G. Thomas Robbins 1959-9-13 4163 Contra Costa just e Hercules (ne edge of San Pablo Bay); San Pablo Bay Comment
  JEPS124470  Cuscuta subinclusa Daniel Slakey with CNPS Volunteers 2015-7-6 143 Contra Costa Mt. Diablo, about 200 m north of Frog Pond, near stream. Comment
  UC562483  Cuscuta subinclusa Joseph P. Tracy 1932-9-10 10789 Contra Costa Franklin Canyon 152 Comment
  UC1779712  Cymbalaria muralis Rudolf Schmid 1999-5-21 1999 -5 Contra Costa Private residence of Rudolf Schmid, 16 Edwn Dr. Kensington, CA 94707-1022, the xeriscape garden establised spring and summer, 1968. 170 Comment
  JEPS99953  Cynara cardunculus A. Langston 2003-7-17 AL 67 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC299745  Cynara cardunculus John Thomas Howell 1953-3-15 28922 Contra Costa Danville Comment
  UC692432  Cynodon dactylon Mary L. Bowerman 1936-8-17 3526 Contra Costa Sulphur Spring in Pine Canyon Mount Diablo; , Sulphur Spring in Pine Canyon 137 Comment
  HSC101961  Cynoglossum grande Nikolaus Gillen, Michelle Bihler 2014-3-20 13 Contra Costa Mount Diablo State Park. Eagle Peak Trail. 649 Comment
  OBI20821  Cynoglossum grande Neil Havlik 1968-3-25 91 Contra Costa Big Springs Cyn, Charles Lee tilden Regional Park, E of Berkeley Comment
  UCD119162  Cynoglossum grande William B. Davis 1960-3-26 10 Contra Costa North Scenic Boulevard, ca. 1 mile below the North Gate of Mt. Diablo State Park. Comment
  JEPS99550  Cynosurus echinatus Mary Bowerman 1976-6-24 Contra Costa Mount Diablo, inner Black Hills just west of meridian and south of crest. Comment
  JEPS99559  Cynosurus echinatus Mary Bowerman 1995-5-28 Contra Costa Mount Diablo, Fire road from Macedo Ranch to Wall Pt. Ridge. Comment
  JEPS111890  Cyperus eragrostis D. G. Kelch 2004-5-7 04 .192 Contra Costa Ca ada del Cierbo Ca ada del Cierbo 40 Comment
  UC2013054  Cyperus eragrostis Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14919 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  UCD35193  Cyperus eragrostis Beecher Crampton 1953-8-25 1612 Contra Costa Richmond. 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
  UCD150887  Cyperus esculentus James A. Neilson Jr. 1972-11-2 3615 Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 Comment
  UC62454  Cystopteris fragilis unknown 1891-3-4 Contra Costa Comment
  CAS-BOT-BC198197  Cytisus striatus R. Leen 1986-7-10 s.n. Contra Costa Alvarado Canyon, East Bay Regional Park Comment
  UC2028280  Cytisus striatus Barbara Ertter with Laura Fujii 1999-3-7 16484 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, near Alvarado Staging area at NW end of park, along hiking road. Comment
  SEINET2444146  Datisca glomerata C. Davidson, Barbara Ertter 2010-9-1 11791 Contra Costa Mt. Diablo, Donner Canyon. N side of Mt. Diablo State Park. (Regency Dr. access.). 191 Comment
  UC2029145  Datura stramonium Barbara Ertter 1999-8-21 16790 Contra Costa Lower Mitchell Canyon Road on NW base of Mount Diablo. Comment
  JEPS102890  Datura wrightii Barbara Ertter with Tony Morosco 1998-10-18 16435 Contra Costa Lime Ridge Recreaton Area, NE corner Mount Diablo 182 Comment
  JEPS112311  Datura wrightii Andrew G. Murdock 2004-5-28 308 Contra Costa Hercules - Carbon, along Highway 4 Comment
  UCD32433  Deinandra corymbosa Beecher Crampton 1950-6-20 596 Contra Costa Contra Costa County, 1 mile north of Richmond, Triangle Court. Comment
  CAS-BOT-BC294017  Deinandra kelloggii Peter Rubtzoff 1951-10-7 s.n. Contra Costa Along lower San Joaquin River, east of Antioch Comment
  JEPS38344  Deinandra kelloggii W. L. Jepson 1923-10-4 Contra Costa Antioch Comment
  UC34625  Deinandra kelloggii Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  UC88925  Deinandra kelloggii K. Brandegee 1889-5-1 Contra Costa Antioch Comment
  UC88926  Deinandra kelloggii K. Brandegee 1892-6-8 Contra Costa Antioch Comment
  CAS-BOT-BC294015  Deinandra kelloggii Brandegee No date on label s.n. Contra Costa Antioch Comment
  CAS-BOT-BC294021  Deinandra kelloggii John Thomas Howell 1929-7-20 4329 Contra Costa 2 miles s. of Oakley Comment
  UC523552  Deinandra lobbii David D. Keck 1933-11-2 2615 Contra Costa 1 mi e Nichols (northern Contra Costa County) Comment
  UC2029061  Deinandra lobbii Barbara Ertter with Delia Taylor 2003-6-22 18225 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, ridge south of Arata Overlook Trail NE of park headquarters east of Somerville Road. Comment
  UCD95639  Delphinium californicum P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  JEPS20340  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
  CAS-BOT-BC10306  Delphinium hesperium Mrs. E. C. Wright 1917-6-1 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC10014  Delphinium hesperium subsp. pallescens A. A. Heller 1908-4-17 8906 Contra Costa Hills, three miles south of Antioch,. 18 Comment
  LA207542  Delphinium hesperium subsp. pallescens H. Lewis; Carl Epling 1944-6-5 sn Contra Costa 1 mi. S of Marsh Creek Rd. on the Beck Rd. to Livermore Comment
  LA38170  Delphinium hesperium subsp. pallescens Lewis; Mehlquist 446 Contra Costa S of Antioch, 5.4 mi. N of Marsh Creek rd Comment
  JEPS112062  Delphinium nudicaule A. G. Murdock 2004-4-30 243 Contra Costa Vaca Canyon 165 Comment
  UC1819001  Delphinium nudicaule Barbara Ertter, Tom Delendick 1996-5-2 14613 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
  CAS-BOT-BC116455  Delphinium patens subsp. patens H. L. Mason 1925-3-10 1301 Contra Costa Mount Diablo Comment
  CAS-BOT-BC116457  Delphinium patens subsp. patens Alice Eastwood 1915-5-30 4497 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC116460  Delphinium patens subsp. patens Miss Mary Leolin Bowerman 1931-3-21 584 Contra Costa Sycamore Canyon, below chaparral on west facing slope Comment
  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
  UC9250  Delphinium variegatum J. Burtt Davy 1895-4-8 971 Contra Costa foothills Antioch Comment
  UC634890  Dendromecon rigida H. L. Mason 1925-1-11 1177 Contra Costa Moraga Ridge Comment
  CAS-BOT-BC192543  Deschampsia cespitosa subsp. holciformis Peter H. Raven 1955-6-12 8293 Contra Costa Just above Antioch Comment
  CAS-BOT-BC192678  Deschampsia danthonioides Ira L. Wiggins 1930-4-17 4576 Contra Costa 1/4 mi S. of Byron Comment
  SEINET11676571  Deschampsia danthonioides I. L. Wiggins 1930-1 4576 Contra Costa 0.5 mi S of Byron Comment
  SEINET3927628  Deschampsia elongata Glen Holstein 2000-7-27 s.n. Contra Costa SE El Sobrante, NE side of San Pablo Ridge.; 0 Comment
  UC2029179  Deschampsia elongata Barbara Ertter with Alan Prather 2003-6-7 18209 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, Coyote Trail. Comment
  UC692178  Dicentra chrysantha Mary L. Bowerman 1930-6-10 318 Contra Costa across from and slightly below Muir Area (Meridian Peak); Mount Diablo, Meridian Peak Comment
  RSA128442  Dicentra chrysantha Joanne Taylor 1941-7-18 19 Contra Costa Nortonville. 244 Comment
  SEINET3559560 Image available Dichelostemma capitatum Lewis S. Rose 1932-3-15 3284 Contra Costa Byron. Comment
  UC1133877  Dichelostemma capitatum C. M. Belshaw 1936-5-8 2060 Contra Costa se slope Mt. Diablo; Mt. Diablo Quad. 990 Comment
  UC480634  Dichelostemma capitatum Carl Meyer 1928-2-22 297 Contra Costa Mt. Diablo Comment
  UC618200  Dichelostemma capitatum R. F. Hoover 1938-2-21 2756 Contra Costa Point Richmond Comment
  RSA367471  Dichelostemma capitatum subsp. capitatum H. de Forest 1930-4-6 s.n. Contra Costa [No locality information provided] Comment
  CHSC39486  Diplacus aurantiacus Tyler Williams 1984-4-18 24 Contra Costa Ca. 20 yd nw of Bridal Nook Picnic Area on e side of South Park Rd., in Mt. Diablo State Park. 533 Comment
  CAS-BOT-BC121840  Dirca occidentalis Howard E. McMinn 1925-3-30 1402 Contra Costa Near summit Thornhill Road and Skyline Blvd. Comment
  JEPS77000  Dirca occidentalis Robert M. Lloyd 1963-3-17 2131 Contra Costa Skyline Drive 0.5 mi e intersection with Grizzly Peak Road (across from 7090 Skyline, Huckleberry trail) Comment
  UC872740  Dirca occidentalis Lewis S. Rose 1939-1-24 39002 Contra Costa head of Wildcat Canyon Berkeley Hills 426 Comment
  LA209791  Dirca occidentalis Chas M. Belshaw; 1935-3-3 372 Contra Costa San Pablo Reservoir, NE face of Bald Peak Comment
  UC3567  Disporum hookeri W. H. Brewer 1862-5-16 1099 Contra Costa s of Mount Diablo 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
  CHSC99232  Dittrichia graveolens John Dittes 2006-10-26 1412 Contra Costa San Joaquin Valley (foothills near nw edge); ca. 2.0 air miles south of Marsh Creek Gauging Station, 1.6 air miles south of Marsh Creek Reservoir Gauging Station, 1.6 air miles southwest of Intersection of Camino Diablo and Vasco Road; Contra Costa Water District's Los Vaqueros Watershed Mitigation Project Area. 67 Comment
Read comments Aug 22 2009
  UC2028241  Dittrichia graveolens Barbara Ertter, Tony Morosco 1998-9-18 16423 Contra Costa Lime Ridge Open Space northwest of Mount Diablo. Comment
  JEPS68971  Dodecatheon clevelandii subsp. patulum Edward Lee 1935-3-10 1305 Contra Costa s watershed of Kirker Creek Nortonville (s watershed of Kirker Creek) (Nortonville) Comment
  UC1039585  Dodecatheon clevelandii subsp. patulum Herbert L. Mason 1925-2-28 1260 Contra Costa 1/2 mi e Rodeo; e of Rodeo Comment
  JEPS99973  Dodecatheon hendersonii S. O'Neil 2003-3-11 SEO 7 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  POM287080  Dodecatheon hendersonii Lyman Benson 1935-3-16 6279 Contra Costa Mitchell Canyon near Clayton; Mt. Range: Mt. Diablo; Watershed: Walnut Creek. 244 Comment
  UC673394  Dodecatheon hendersonii Herbert L. Mason 1925-3-10 1294 Contra Costa Mount Diablo Mount Diablo (open slopes) Comment
  UC766292  Dodecatheon hendersonii R. F. Hoover 1938-2-21 2758 Contra Costa Point Richmond Comment
  UC1046584  Dodecatheon hendersonii Alex D. Hawkes and R. Bacigalupi 1951-4-22 4777 Contra Costa State Rd. #4 near Mt. Diablo (along Marsh Creek); , near Mt. Diablo Comment
  UCD35993  Dodecatheon hendersonii Beecher Crampton 1949-4-1 423 Contra Costa Contra Costa County, Moraga Ridge. 60 Comment
  POM203314  Dodecatheon hendersonii subsp. cruciatum J. T. Howell 1931-3-10 5756 Contra Costa East side of Mt. Diablo 7 miles from Clayton on Livermore road. Comment
  JEPS5033  Downingia insignis Ira L. Wiggins 1930-4-17 4570 Contra Costa 0.25 mi s Byron Comment
  JEPS65183  Downingia insignis L. R. Heckard 1971-4-15 2484 Contra Costa s of Byron (at intersection of Holey Road) Comment
  UC1481550  Downingia insignis Neil Havlik 1980-5-10 914 Contra Costa near Antioch (along Deer Valley Rd, 0.25 mi n of Balfour Rd) Comment
  UC583159  Downingia insignis Lewis S. Rose 1936-4-24 36154 Contra Costa 8 mi s Antioch 30 Comment
  UC725662  Downingia ornatissima var. eximia A. A. Heller 1942-4-20 16432 Contra Costa w of Antioch (near the golf links) Comment
  JEPS14473  Downingia pulchella G. Thomas Robbins with Peter H. Raven 1956-4-28 3666 Contra Costa just e. of Martinez junction & 0.1 mi w. of Buchanan Field Rd. State Hwy. 4 Comment
  UCD54987  Downingia pulchella Peter M. Ray; S. G. Smith and F. Chisaki 1951-4-14 1980 Contra Costa Small pond 7 miles north of Walnut Creek; east of Highway #21; 0.2 mile south of intersection with highway 4. 6 Comment
  UC2027994  Draba verna Barbara Ertter with Tony Morosco 1998-4-12 16024 Contra Costa Mount Olympia on north side of Mount Diablo, midway down Olympia Road from summit. Comment
  CAS-BOT-BC159645  Drymocallis glandulosa var. glandulosa David D. Keck 1941-6-5 5308 Contra Costa Berkeley Hills, Fish Creek Road, 1/4 mi. W. of east portal of Broadway Tunnel 335 Comment
  JEPS44306  Drymocallis glandulosa var. wrangelliana W. L. Jepson 1923-6-10 9995 Contra Costa Upper Marsh Creek Mt. Diablo, Upper Marsh Creek Comment
  CDA42720  Dryopteris arguta A. G. Murdock 2004-2-12 205 Contra Costa Franklin Canyon - McHarry Ranch Road. Comment
  JEPS25137  Dudleya farinosa G. Thomas Robbins 1959-5-16 4007 Contra Costa just s Pt. San Pablo (Potrero Hills); Richmond Comment
  UC1795646  Dudleya farinosa Barbara Ertter, Brad Olson 1994-5-7 12763 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  JEPS128780  Dysphania chilensis Kevin Hintsa 2000-8-17 Contra Costa Mount Diablo State Park, flats just upstream from Pine Pond's willow forest. Comment
  UCD150908  Echinochloa crus-galli James A. Neilson Jr. 1972-11-2 3611 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  UCD32993  Echinochloa crus-galli Beecher Crampton 1965-9-29 7527 Contra Costa Contra Costa County, 2 miles south of Brentwood, jct. of Walnut ave. and Marsh Creek rd.. Comment
  CDA1988  Echinochloa muricata var. microstachya T. C. Fuller 1964-11-6 12809 Contra Costa Bethel Island. 0 Comment
  CAS-BOT-BC291118  Eclipta prostrata Walter Knight; Irja Knight 1980-8-26 3770 Contra Costa Hercules Comment
  RSA0027708  Eclipta prostrata Barbara Ertter 1996-9-19 15298 Contra Costa Antioch Marina, edge of Dow Marsh lands. Comment
  UC2027936  Eclipta prostrata Barbara Ertter 1996-9-19 15298 Contra Costa Antioch Marina, edge of Dow Marsh lands. Comment
  UC1618316  Egeria densa Barbara Ertter, CNPS 1990-9-16 9648 Contra Costa Bethel Island ne of Brentwood (e end of Gateway Road at w edge of Franks Tract State Recreation Area, ne Contra Costa County); Bethel Island, Franks Tract State Recreation Area Comment
  UC1606337  Eleocharis acicularis Barbara Ertter, Brad Olson 1991-9-28 10832 Contra Costa S end of San Pablo Reservoir between Orinda and El Sobrante Comment
  JEPS111889  Eleocharis macrostachya D. G. Kelch 2004-4-26 04 .140 Contra Costa Point Pinole 3 Comment
  UC1618280  Eleocharis macrostachya Barbara Ertter, Brad Olson 1991-9-28 10836 Contra Costa S end of San Pablo Reservoir, between Orinda and El Sobrante 91 Comment
  UC691970  Eleocharis macrostachya Mary L. Bowerman 1938-5-28 3645 Contra Costa Maple Spring, on upper margin especially in the NW corner Mount Diablo Comment
  CAS-BOT-BC112798  Eleocharis macrostachya Miss Mary Leolin Bowerman 1938-5-28 3645 Contra Costa Maple Spring, on upper margin especially in the NW corner. Comment
  JEPS111062  Eleocharis macrostachya Lee Echols 2003-6-20 s.n. Contra Costa Richmond Field Station, SW corner of Danthonia grassland N of Lark Drive 15 Comment
  UC2028490  Eleocharis macrostachya Barbara Ertter 1998-5-3 16062 Contra Costa Area of Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo Comment
  CAS-BOT-BC112218  Eleocharis rostellata Miss Mary Leolin Bowerman 1967-7-19 37175 Contra Costa NW end of Shell Ridge, just S of the highway (Heather Farm), by sulphurous stream. Comment
  SBBG122783  Elodea canadensis B. Ertter, B. Olson 1991-9-28 10841 Contra Costa S end of San Pablo Reservoir, between Orinda and El Sobrante 91 Comment
  RSA108336  Elymus X gouldii Frank W. Gould 1941-7-4 1303 Contra Costa On wastelands along Bay just north of Albany race track. Comment
  UC691194  Elymus X hansenii Mary L. Bowerman 1935-7-22 3193 Contra Costa Sloan Rd. Mount Diablo, Inner Black Hills (near w end) 533 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
  UC692423  Elymus X saundersii Mary L. Bowerman 1935-6-1 3109 Contra Costa largest ridge between Ransom Point ridge and Mitchell-Pine divide; Mount Diablo 1066 Comment
  UC2028395  Elymus elymoides var. elymoides Barbara Ertter with Richard K. Brummitt 1998-5-13 16141 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, south leg of Loughler Loop Trail just west of pass over central ridge, NW-facing slope Comment
  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
  SEINET252196  Elymus glaucus David Amme 1988-8-16 Contra Costa Kensington Comment
  UC1789176  Elymus glaucus Barbara Ertter 2002-6-16 17953 Contra Costa Richmond Field Station, southwest end of overgrown meadow near boundary with park, edge of thick growth facing fence. Comment
  UC691202  Elymus glaucus Mary L. Bowerman 1933-5-21 2154 Contra Costa n-facing slope below Grape Spring (s from Curry Canyon); Mount Diablo Comment
  CAS-BOT-BC203432  Elymus glaucus subsp. glaucus Mary L. Bowerman 1935-5-16 3009 Contra Costa Mount Diablo. Behind Gabriel-Hinks' (east side of North Peak) 289 Comment
  CAS-BOT-BC203433  Elymus glaucus subsp. glaucus Mary L. Bowerman 1935-5-3 2964 Contra Costa Mount Diablo. Sloan Road 487 Comment
  CDA6126  Elymus multisetus D. G. Kelch 2007-5-12 7 .291 Contra Costa Carquinez Strait; Franklin Ridge, S of Hwy 4 at McEwen Rd. Comment
  UC691170  Elymus multisetus Mary L. Bowerman 1933-6-7 2262 Contra Costa North Peak Mount Diablo Comment
  UC756651  Elymus trachycaulus G. L. Stebbins Jr. 1946-6-9 3652 Contra Costa 2 mi e El Cerrito (near Mira Vista Country Club) Comment
  CAS-BOT-BC204318  Elymus trachycaulus subsp. trachycaulus Roxana S. Ferris 1924-6-14 4089 Contra Costa Summit of Mt. Diablo Comment
  RSA128915  Emmenanthe penduliflora Peter H. Raven 1950-7-5 2480 Contra Costa A flat on south side of Mt. Diablo. 1067 Comment
  UC672376  Emmenanthe penduliflora Herbert L. Mason 1928-4-22 4434 Contra Costa Sycamore Canyon, south slope of Mount Diablo Comment
  JEPS68926  Epilobium brachycarpum Edward Lee 1934-9-30 1219 Contra Costa just se station (roadside); Moraga Comment
  UC692446  Epilobium campestre Mary L. Bowerman 1935-6-28 3173 Contra Costa s summit (vernal pool 300 yd e of meridian fence line); Mt. Diablo 487 Comment
  CAS-BOT-BC166162  Epilobium canum subsp. canum L. R. Abrams 1910-10-8 4342 Contra Costa Mt. Diablo 1158 Comment
  UC1122299  Epilobium canum subsp. canum R. W. Lundh 1932-9-22 167 Contra Costa 1 mi sw Mt. Diablo; Mt. Diablo Quadrangle 914 Comment
  UC692454  Epilobium canum subsp. canum Mary L. Bowerman 1930-8-31 442 Contra Costa near Garden-of-the-Gods; Mount Diablo, Rock City Ridge Comment
  CDA38070  Epilobium ciliatum D. G. Kelch 2003-8-13 3 .142 Contra Costa Carquinez Strait; Pinole Creek. Comment
  UC1613486  Epilobium ciliatum subsp. ciliatum Charles M. Belshaw 1936-12-13 2746 Contra Costa near Berkeley Country Club (North Coast Range); North Coast Range 152 Comment
  UC2028093  Epilobium densiflorum Barbara Ertter, Chris Thayer 1996-10-25 15381 Contra Costa West side of Mount Diablo, North Gate Road 3 roadmiles below Junction, roadside drainage near Mineral Spring. Comment
  CDA9496  Epilobium pygmaeum D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .22 Contra Costa Byron Airport. Comment
  CDA31168  Epipactis helleborine D. G. Kelch 2008-9-2 8 .305 Contra Costa Carquinez Strait.; Pinole Valley Park. Comment
  UC692134  Equisetum laevigatum Mary L. Bowerman 1931-5-16 864 Contra Costa Lower Silver Spring; Mt. Diablo 853 Comment
  UC2028554  Equisetum telmateia subsp. braunii Barbara Ertter 1998-11-15 16462 Contra Costa North side Mount Olympia on north side Mount Diablo Comment
  CDA42475  Equisetum telmateia var. braunii D. G. Kelch 2004-7-9 04 .292B Contra Costa Carquinez Strait; Crockett; Edwards Creek, immediately below high school. Comment
  POM300619  Equisetum telmateia var. braunii Mary L. Bowerman 1930-8-24 433 Contra Costa MItchell Canyon. 252 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
  JEPS100099  Eremocarpus setiger A. Langston 2003-7-9 AL 64 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS123247  Eriastrum ertterae David Gowen 1907-6-20 472 Contra Costa Lime Ridge Open Space. South of summit near power line area. Comment
  UC133927  Eriastrum sapphirinum Katharine Brandegee May 1889 Contra Costa Judsonville Comment
  UC2028020  Ericameria arborescens Barbara Ertter 1997-9-14 15816 Contra Costa Southwest side of Mount Diablo, Wall Point Road on open sandstone ridge northwest of Wall Point. Comment
  UC61518  Ericameria arborescens A. B. Simonds Contra Costa Comment
  CAS-BOT-BC287528  Ericameria linearifolia H. E. McMinn 1922-6-2 96 Contra Costa From near summit of Mt Diablo Comment
  JEPS127733  Ericameria linearifolia H. Forbes, B. Keller 2009-5-29 UCBG 24 Contra Costa Mt. Diablo State Park, along Deer Flat road about 0.16 km beyond Juniper Camp. Comment
  UC36554  Ericameria linearifolia H. N. Bolander 1866-4-1 6141 Contra Costa Mount Diablo Comment
  UC672254  Ericameria linearifolia H. L. Mason 1926-3-7 2707 Contra Costa near summit Mount Diablo Comment
  UC691863  Ericameria linearifolia Mary L. Bowerman 1930-6-18 351 Contra Costa Meridian Peak summit Mount Diablo, Meridian Peak (open rocky slope on e side) Comment
  UC86674  Ericameria linearifolia unknown 1889-5-1 Contra Costa Antioch Comment
  SEINET10617379  Ericameria linearifolia John T. Middleton 1936-4-18 Middleton 137 Contra Costa Marsh Creek Rd. - 8 mi. east of Clayton. Comment
  SEINET5552883  Ericameria linearifolia H. S. Gentry 1931-1 54 Contra Costa Collected near Mt. Diablo. Comment
  UC1818984  Erigeron foliosus var. franciscensis Barbara Ertter 1994-6-26 12874 Contra Costa South of Point Molate Beach Park in west Richmond north of San Rafael Bridge, perennial grassland on bluff above beach between park and Point Castro. Comment
  UC723893  Erigeron petrophilus var. petrophilus Joseph Andorfer Ewan 1936-8-5 9735 Contra Costa Wildcat Creek Comment
Read comments Jul 1 2007
  UC691786  Erigeron petrophilus var. petrophilus Mary L. Bowerman 1930-10-19 489 Contra Costa at Garden-of-the-Gods; Mount Diablo, Fossil (Rock City) Ridge 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
  RSA517729  Erigeron philadelphicus Donald G. Nelson 1938-4-24 566 Contra Costa Marsh Creek Highway, 1 mile north of Mt. Diablo Comment
  JEPS111660  Erigeron philadelphicus var. philadelphicus A. G. Murdock 2004-4-30 251 Contra Costa McEwen Road West side of road 130 Comment
  UC1181399  Eriodictyon californicum Jerry Powell 1960-5-24 Contra Costa hill between Canyon and Moraga (hill se of canyon); hill between Canyon and Moraga (hill se of canyon) Comment
  CAS-BOT-BC216075  Eriodictyon californicum W. W. Carruth 1901-5-1 s.n. Contra Costa Moraga Valley Comment
  UC1032304  Eriogonum gracile G. T. Nordstrom 1937-10-28 1409 Contra Costa 1.6 mi nne Somersville; Mt. Diablo Quadrangle Comment
  UC1795829  Eriogonum gracile Barbara Ertter, Mary L. Bowerman 1994-6-19 12847 a Contra Costa Mt. Diablo State Park east of Walnut Creek; lower Summit Parking Lot, roadside. Comment
  UC1735889  Eriogonum gracile var. gracile Dean W. Taylor 1992-4-16 12388 B Contra Costa S of Byron Hot Springs, in swale draining on E margin of NE1/4 SE1/4 Section 34S of Byron Hot Springs, in swale draining on E margin of NE1/4 SE1/4 Section 34 45 Comment
  UC6565  Eriogonum gracile var. gracile Edw. L. Greene 1892-6-20 Contra Costa Mount Diablo Comment
  UC635006  Eriogonum luteolum var. luteolum H. L. Mason 1929-9-21 5434 Contra Costa 3 mi above, along Marsh Creek road Clayton Comment
  UC737822  Eriogonum luteolum var. luteolum R. F. Hoover 1940-11-23 4693 Contra Costa 8 mi e on Marsh Creek Road Clayton Comment
  UC692045  Eriogonum nudum var. auriculatum Mary L. Bowerman 1930-8-24 424 Contra Costa Mitchell Canyon, lower trail Mount Diablo Comment
  UC692047  Eriogonum nudum var. auriculatum Mary L. Bowerman 1931-10-23 1062 Contra Costa Riggs Canyon Mount Diablo Comment
  UC692199  Eriogonum nudum var. auriculatum Mary L. Bowerman 1930-6-22 368 Contra Costa Mitchell Canyon trail Mount Diablo 457 Comment
  CAS-BOT-BC268910  Eriogonum nudum var. auriculatum W. H. Brewer 1861-9-25 841 Contra Costa Near Monte [Mount] Diablo, Mission San Jose Comment
  UC1795738  Eriogonum nudum var. auriculatum Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14675 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay; grassland/scrub at northeast corner of area. Comment
  CAS-BOT-BC269816  Eriogonum nudum var. psychicola Peter Rubtzoff 1951-10-7 826 Contra Costa Along lower San Joaquin River, east of Antioch Comment
  SEINET3836874 Image available Eriogonum roseum W. L. Jepson 1895-9-14 14779 Contra Costa Walnut Creek Comment
  UC762690  Eriogonum roseum R. F. Hoover 1940-11-30 4699 Contra Costa 2 mi s Antioch Comment
  UC768654  Eriogonum roseum R. F. Hoover 1937-9-2 2712 Contra Costa 2 mi s Antioch Comment
  UC6492 Image available Eriogonum truncatum State Survey 1862-5-29 1186 Contra Costa Camp 71, Marsh's Ranch, Contra Costa Co. Comment
  UC692152  Eriogonum truncatum Mary L. Bowerman 1933-5-25 2198 Contra Costa Mount Diablo Comment
  UC691731  Eriophyllum confertiflorum var. confertiflorum Mary L. Bowerman 1933-6-3 2225 Contra Costa 2 mi by road from North Entrance; Mount Diablo Comment
  CAS-BOT-BC300968  Eriophyllum lanatum var. achilleoides John Thomas Howell 1923-11-12 244 Contra Costa Mt. Diablo Comment
  UC2032830  Eriophyllum staechadifolium Doran, Andrew Scott 2012-3-20 700 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  JEPS100038  Erodium botrys G. Smick 2003-4-1 GAS 102 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111971  Erodium cicutarium D. G. Kelch 2003-3-21 03 .67 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 2 miles west of Martinez Contra Costa County CA. Grassy hill above cottonwood tree. Just south of end gate of Carquinez Scenic Drive 40 Comment
  UC2032834  Erodium cicutarium Doran, Andrew Scott 2012-3-20 704 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  JEPS105747  Erodium macrophyllum Barbara Ertter with David Gowen, Mike Park, Wilde Legard 2004-4-13 18346 Contra Costa Black Diamond Mines Regional Preserve, WSW-facing slope above water tank E of River View Loop Trail, over saddle E of park headquarters at Sidney Flat 182 Comment
  POM127732  Erodium macrophyllum Katherine Brandegee 1907-5-5 s.n. Contra Costa Judsonville near Antioch. Comment
  UC17062  Erodium macrophyllum J. Burtt Davy 1895-4-7 945 Contra Costa Antioch Comment
  UC606754  Erodium moschatum Edward Lee 1936-4-10 1995 Contra Costa Red Rock San Francisco Bay 54 Comment
  SD180608  Eryngium aristulatum Beecher Crampton 1950-8-22 620 Contra Costa Railroad right-of-way, Richmond. Comment
  JEPS15973 Image available Eryngium aristulatum var. aristulatum W. L. Jepson 1895-9-7 14275 Contra Costa Orinda Park; ; Orinda Park, Contra Costa Co. 121 Comment
  JEPS15974 Image available Eryngium aristulatum var. aristulatum W. L. Jepson 1895-9-7 14275 Contra Costa e of Bald Peak; Orinda 121 Comment
  UC691774  Eryngium aristulatum var. aristulatum Mary L. Bowerman June 1942 3850 Contra Costa South Rd. Mt.Diablo Comment
  UC765825  Eryngium aristulatum var. aristulatum R. F. Hoover 1937-5-14 2125 Contra Costa Byron Hot Springs Comment
  UC20998  Eryngium aristulatum var. aristulatum J. Burtt Davy 1900-3-24 6525 Contra Costa Santa Fe Comment
  JEPS17451  Eryngium armatum W. L. Jepson 1922-7-9 9732 Contra Costa Richmond Comment
  CDA38330  Eryngium armatum Chas. Lasser 1960-4-21 s.n. Contra Costa Pittsburg. 0 Comment
  UC21001  Eryngium articulatum J. W. Congdon Sept. 1886 Contra Costa 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
  UC2062646  Eryngium jepsonii Barbara Ertter 2002-11-11 18081 Contra Costa Round Valley Regional Preserve east of Mount Diablo. Comment
  CHSC67627  Eryngium vaseyi James D. Jokerst 1989-3-28 3062 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  UC1745587  Eryngium vaseyi Annetta M. Carter 1951-6-9 3061 Contra Costa 3 mi. S of Byron. Comment
  CAS-BOT-BC40762  Erysimum capitatum W. W. Carruth 1901-3-1 s.n. Contra Costa Mount Diablo. Comment
  CAS-BOT-BC40768  Erysimum capitatum G. B. Rossbach; R. P. Rossbach 1938-6-5 858 a Contra Costa Along tidal estuary of San Joaquin River just east of Antioch. Comment
  CAS-BOT-BC40775  Erysimum capitatum James McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  CAS-BOT-BC40756  Erysimum capitatum G. B. Rossbach 1955-3-20 571 Contra Costa Upper south slope of Mount Diablo. 1005 Comment
  CAS-BOT-BC40760  Erysimum capitatum Mary L. Bowerman 1935-4-26 2915 Contra Costa Mount Diablo. West of the ridge west of Indian Ceremonial Spring, just below the Old Stage Road. 1005 Comment
  RSA0008585  Erysimum capitatum var. angustatum Glenn A. Gorelick 1967-4-4 s.n. Contra Costa 1.5 miles east of Antioch 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
  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
  UC2046329  Erythranthe nasuta Barbara Ertter with Alan Prather 2003-6-7 18200 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, creek alongside west end Stone Corral Trail, south of Highland Ridge Trail junction. Comment
  CAS-BOT-BC402983  Eschscholzia californica A. A. Heller 1938-4-9 15018 Contra Costa 3 miles southwest of Antioch Comment
  CAS-BOT-BC402991  Eschscholzia californica Philip A. Munz 1947-10-8 12190 Contra Costa Antioch 12 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
  SEINET11263885  Eschscholzia californica Barbara Ertter, Tony Morosco 1996-7-27 15039 Contra Costa Cardinet Oaks Road at crossing of Donner Creek.; 0 335 Comment
  UC10069  Eschscholzia californica Edw. L. Greene 1893-6-20 Contra Costa Mt. Diablo Comment
  UC1126420  Eschscholzia californica R. C. Wilson 1935-3-29 159 Contra Costa 1 mi sw Mt. Diablo; Mt. Diablo Quadrangle 1005 Comment
  UC692105  Eschscholzia californica Mary L. Bowerman 1933-5-3 1973 Contra Costa due s Meridian Peak summit (on hillside above flat); Mount Diablo Comment
  CAS-BOT-BC402982  Eschscholzia californica R. Bacigalupi 1922-9-24 s.n. Contra Costa Road between Concord and Clayton Comment
  UCD95304  Eschscholzia californica Jennifer Davies 1982-4-11 1 Contra Costa 0.5 mile west of Park HQ on Northgate Road, Mt. Diablo. 670 Comment
  CAS-BOT-BC5937  Eschscholzia recta Mary Katherine (Mrs.) Brandegee 1889-5-1 s.n. Contra Costa Antioch Comment
  UC2028364  Eucalyptus camaldulensis Barbara Ertter 1998-6-20 16260 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Borges Ranch Road at junction to private residences Comment
  UC2012987  Eucalyptus globulus Barbara Ertter with Tony Morosco 1996-7-27 15029 Contra Costa Mount Diablo State Park, north foot of mountain between Donner Canyon and Back Creek Road. Comment
  UC1789209  Eucalyptus rudis Barbara Ertter with Tony Morosco 1998-10-18 16427 Contra Costa Lime Ridge quarry area just south of Ygnacio Vally Road (area subsequently converted into housing development 121 Comment
  UC2032815  Euphorbia lathyris Doran, Andrew Scott 2012-3-20 685 Contra Costa North end of Brooks Island along ridge, cleared area northwest of caretakers residence. Garden waste area. Comment
  CDA7731  Euphorbia oblongata Deviney 2008-4-18 PDR# 1454510 Contra Costa Carquinez Strait; Pacheco, Waterbird Way X Hwy 680 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
  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
  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
  UC697207  Eurybia radulina Mary L. Bowerman 1932-9-5 1549 Contra Costa Inner Black Hills e of the meridian Black Hills Comment
  JEPS111732  Euthamia occidentalis D. G. Kelch 2004-9-2 04 .333 Contra Costa Pacheco Marsh east of Martinez and I-680 and east of lone tree Marsh 5 Comment
  UCD150901  Euthamia occidentalis James A. Neilson Jr. 1972-10-22 3601 Contra Costa Walnut Creek drainage, near mouth of Walnut Creek. Elevation estimated using Google Earth by label maker. 0 Comment
  JEPS48472  Festuca californica W. L. Jepson 1943-5-27 20842 Contra Costa n side Black Hills; Mt. Diablo Comment
  CDA28219  Festuca rubra A. G. Murdock, D. G. Kelch 2004-5-28 269 Contra Costa Carquinez Strait Region; Pinole Peak. Comment
  RSA722105  Festuca rubra Barbara Ertter, Brad Olson 1994-5-7 12752 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay. Comment
  SEINET4343746 Image available Festuca rubra Barbara Ertter, Brad Olson 1994-5-7 12752 Contra Costa South end Pt Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay Comment
  UC2070578  Ficus carica Barbara Ertter with Tony Morosco 1996-7-27 15035 Contra Costa North side of Mount Diablo, Donner Cabin site on lower Donner Canyon Road. Comment
  CDA33826  Filago pyramidata D. G. Kelch 2010-5-15 10 .125 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 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
  CHSC23360  Frankenia salina Willis Ball 1975-6-1 534 Contra Costa Contra Loma Regional Park. In area #11. On s side of road ca. 200 yds e of main entrance to park. 60 Comment
  JEPS68930  Frankenia salina Edward Lee 1934-9-30 1226 Contra Costa Moraga, just se of station Moraga Comment
  UC2028959  Frankenia salina Barbara Ertter 2002-8-24 18022 Contra Costa Dunn Creek south of Mount Diablo Mine property on NE base of Mount Diablo. Comment
  CDA37274  Fraxinus velutina D. G. Kelch 2011-3-31 11 .077 Contra Costa Carquinez Region; Richmond; Hilltop Lake Park. Comment
  JEPS16561  Fremontodendron californicum G. G. Hahn Nov. 1914 Contra Costa 1/4 mile E. of Redwood Peak Comment
  CAS-BOT-BC136075  Fritillaria affinis Mary L. Bowerman 1932-3-23 1129 Contra Costa Tiny canyon east of Donner Canyon - Mt. Diablo 274 Comment
  SEINET12045027  Fritillaria affinis L. S. Rose 1934-1 34047 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC130353  Fritillaria liliacea Robert F. Hoover 1938-3-8 2819 Contra Costa Berkeley Country Club Comment
  CAS-BOT-BC130352  Fritillaria liliacea 1902-3-1 s.n. Contra Costa Danville Comment
  UCD95119  Fumaria capreolata Barbara Ertter 1999-3-21 16486 Contra Costa Miller Knox Regional Park, near Point Richmond. Southeast of Richmond Ramblers building. Comment
  UCD121557  Galium andrewsii P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  JEPS124455  Galium andrewsii subsp. gatense Daniel Slakey with CNPS Volunteers 2015-6-13 130 Contra Costa Mt. Diablo State Park, east side of Burma Road. 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
  JEPS7031  Galium andrewsii subsp. gatense Miss Ferguson Contra Costa Donner Canyon Mt. Diablo Comment
  UC691536  Galium aparine Mary L. Bowerman 1932-4-27 1374 Contra Costa canyon w Riggs Canyon; Mount Diablo, Oyster Ridge 289 Comment
  SEINET5739095 Image available Galium aparine Carole Meredith 1968-1 11 Contra Costa Roadside bank in forest area, 1.7 miles SE of Moraga on Canyon Road.; Moraga Comment
  UC1861822  Galium californicum subsp. californicum Barbara Ertter, Chris Thayer 1995-4-25 14000 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Black Hawk Ridge Rd. at northeast FK of Sycamore Creek, 396 Comment
  UC2027965  Galium californicum subsp. californicum Barbara Ertter 1997-8-24 15770 a Contra Costa South side of Mount Diablo, Curry Canyon Road from Curry Point. Comment
  UC1618369  Galium murale Barbara Ertter, Chris Thayer 1993-5-7 11715 Contra Costa 1/2 mi n of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land e of Tilden Park (s of Wildcat Canyon Road); East Bay Municipal Utilities District land Comment
  UC2012961  Galium murale Barbara Ertter with Travis Columbus 1990-6-10 9114 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill: near crossing on Spengler Trail NE of Briones Peak. Comment
  UC2013031  Galium parisiense Barbara Ertter with Travis Columbus 1990-6-10 9107 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill; above junction of Spengler and Blue Oaks trails. Comment
  UC2028363  Galium parisiense Barbara Ertter 1998-6-20 16261 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Borges Ranch Road at junction to private residences Comment
  JEPS112107  Galium porrigens var. porrigens D. G. Kelch 2003-4-3 03 .357 Contra Costa Cummings Skyway 134 Comment
  JEPS99945  Galium porrigens var. porrigens G. Smick 2003-2-20 GAS 51 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC304348  Gamochaeta pensylvanica Walter & Irja Knight 1967-6-12 s.n. Contra Costa Charles Lee Tilden Regional Park. In the botanical garden Comment
  CAS-BOT-BC303366  Gamochaeta ustulata Mary L. Bowerman 1942-6-1 3846 Contra Costa Mt Diablo. Lower Rock City Camp Comment
  UC2028292  Gamochaeta ustulata Barbara Ertter, Dan Norris 1998-6-18 16224 Contra Costa Devil's Slide trail from Knobcone Point Road, south side of Mount Diablo, upper end of trail Comment
  CAS-BOT-BC200623  Garrya elliptica John Thomas Howell 1926-1-16 1625 Contra Costa Head of San Leandro Canyon, Oakland Hills 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
  UC634816  Garrya elliptica H. L. Mason 1925-9-12 2223 Contra Costa head of San Leandro Creek Canyon; Oakland Hills Comment
  CAS-BOT-BC200622  Garrya elliptica Alice Eastwood 1907-7-1 s.n. Contra Costa Berkeley Hills Comment
  UC692520  Garrya flavescens Mary L. Bowerman 1932-9-3 1539 Contra Costa Mount Diablo Summit; Mount Diablo Comment
  CAS-BOT-BC178550  Garrya flavescens H. E. McMinn 1922-6-13 230 Contra Costa Unspecified 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-BC169941  Garrya fremontii Lewis S. Rose 1934-2-28 34041 Contra Costa Summit Mt. Diablo Comment
  CAS-BOT-BC169948  Garrya fremontii Lewis S. Rose 1954-6-29 54084 Contra Costa Mt. Diablo, summit 1170 Comment
  CAS-BOT-BC282608  Gastridium phleoides Mary L. Bowerman 1933-5-25 2190 Contra Costa Oyster Ridge, west end of south face, Mount Diablo Comment
  POM300684  Gastridium phleoides Mary L. Bowerman 1933-6-14 2272 Contra Costa Curry Cave Canyon: Ridge between two main forks. Mount Diablo. Comment
  UCD66551  Gastridium phleoides Beecher Crampton 1956-5-14 3380 Contra Costa Head of Horse Valley, 5 miles S of Antioch. Comment
  UC692386  Gastridium ventricosum Mary L. Bowerman 1935-7-22 3191 Contra Costa Hidden Pond (nw 1/4 S7) Mount Diablo; , Hidden Pond Comment
  CDA42355  Genista monspessulana D. G. Kelch, Vince Guise 2012-7-26 12 .241 Contra Costa Wildcat Canyon Park, Alvarado Unit. Comment
  JEPS112350  Genista monspessulana Dean G. Kelch and Andrew G. Murdock 2004-4-11 04 .077 Contra Costa Crockett - Crolona Heights, County: Contra Costa; Crockett: W base of Crolona heights. Comment
  JEPS99997  Genista monspessulana G. Smick 2003-5-30 GAS 210 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCR265172  Genista monspessulana Barbara Ertter 1991-5-12 9816 Contra Costa Central Coast, Point Isabel Regional Shoreline in southwest corner of El Cerrito, on San Francisco Bay; along old railroad right-of-way between bay and Salicornia marsh. 4 Comment
  UC571135  Geranium dissectum A. E. Borell 1928-3-31 78 Contra Costa Richmond Comment
  JEPS111972  Geranium molle D. G. Kelch 2004-5-9 04 .203 Contra Costa Crockett - Edwards Canyon Upper Edwards Canyon 160 Comment
  JEPS30770  Gilia achilleifolia subsp. achilleifolia G. Thomas Robbins 1937-4-17 122 Contra Costa w facing slope near Point Richmond; near Point Richmond Comment
  UC908864  Gilia achilleifolia subsp. achilleifolia Herbert L. Mason 1929-3-29 5123 Contra Costa Mount Diablo 762 Comment
  SBBG28032  Gilia achilleifolia subsp. achilleifolia V. Grant, A. Grant 1948-5-15 8505 Contra Costa Sacramento Northern Railway embankment, Moraga Cyn, Oakland hills Comment
  UC691601  Gilia achilleifolia subsp. multicaulis Mary L. Bowerman 1935-4-17 2839 Contra Costa West Road 2 mi from entrance Mount Diablo ((= North Rd.)); , West Road 289 Comment
  UC691629  Gilia capitata subsp. capitata Mary L. Bowerman 1933-6-7 2263 Contra Costa North Peak Ridge , North Peak Ridge (Mount Diablo) Comment
  RSA566428  Gilia capitata subsp. staminea Peter L. Morrell, Donna S. Krause 1993-5-16 239 Contra Costa Contra Costa County, along sides of raod 100m W of 1701 Wilbur Ave, Antioch, betw Southern Pacific tracks and San Joaquin River (0.5 miles W of Hwy 4/160). Comment
  RSA8346  Gilia capitata subsp. staminea L. S. Rose 1933-4-17 33090 Contra Costa Antioch. Comment
  UC30197  Gilia capitata subsp. staminea W. H. Brewer 1862-5-19 1118 Contra Costa n Kirker Pass; n of Kirker Pass Comment
  UC517980  Gilia capitata subsp. staminea Lewis S. Rose 1933-4-17 33090 Contra Costa Antioch Comment
  UC913387  Gilia capitata subsp. staminea G. Thomas Robbins 1940-5-19 323 Contra Costa hills e Antioch (bordering San Joaquin River); , e of Antioch Comment
  UC932019  Gilia capitata subsp. staminea Verne Grant, Alva Grant 1947-4-13 7925 Contra Costa sand hills by railroad tracks e Antioch; e of Antioch Comment
  RSA79448  Gilia capitata subsp. staminea E. K. Crum 1936-4-5 1745 Contra Costa South Coast Ranges, 2 miles W of Bryon 46 Comment
  UC691608  Gilia clivorum Mary L. Bowerman 1935-5-1 2932 Contra Costa West Road 2 mi from entrance (( = North Road), Mount Diablo); Mount Diablo, West Road (=North Road) 182 Comment
  UC691677  Gilia clivorum Mary L. Bowerman 1935-4-19 2858 Contra Costa near Turtle Rock (dry hillside on opposite side of road); Mount Diablo, near Turtle Rock 457 Comment
  UC691597  Gilia tricolor subsp. tricolor Mary L. Bowerman 1935-4-19 2864 Contra Costa West Road = North Road 6.3 mi from entrance Mount Diablo (Mount Diablo, above Pepperwood Spring); Mount Diablo, above Pepperwood Spring 609 Comment
  UC635648  Githopsis specularioides H. L. Mason 1928-4-29 4429 Contra Costa Sycamore Canyon, s slopes of Mt. Diablo Mt. Diablo Comment
  RSA405218  Glycyrrhiza lepidota E. E. Stanford 1930-5-24 1507 Contra Costa Marsh Creek Canyon. 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
  CDA5999  Gnaphalium canescens subsp. beneolens D. G. Kelch, A. G. Murdock 2004-9-2 4 .345 Contra Costa Carquinez Strait Region; Martinez -West: Ozol Rock and Scenic Drive. Alhambra Road. South of Green Street. Comment
  JEPS99527  Gnaphalium palustre Mary L. Bowerman 1975-9-14 Contra Costa Mount Diablo, in mud of rivulent leading into Sheepherder's Pond from the spring. Comment
  UCR197918  Gnaphalium palustre Beecher Crampton 1950-6-20 595 Contra Costa 1 mile north of Richmond, Triangle Court 9 Comment
  CDA1504  Gnaphalium stramineum D. G. Kelch 1996-10-17 s.n. Contra Costa Carquinez Strait; Pt Edith Marsh Comment
  UCD32381  Godetia amoena var. concolor Beecher Crampton 1950-4-22 523 Contra Costa Contra Costa County, above site of Judsonville, west of old Empire Coal Mine. 167 Comment
  CAS-BOT-BC305225  Grindelia hirsutula Evelina Cannon 1900-9-17 s.n. Contra Costa Giant station Comment
  CAS-BOT-BC305226  Grindelia hirsutula Lewis S. Rose 1930-7-22 s.n. Contra Costa Antioch Bridge Comment
  CAS-BOT-BC305227  Grindelia hirsutula Lewis S. Rose 1930-7-22 s.n. Contra Costa Pittsburg Comment
  CAS-BOT-BC305234  Grindelia hirsutula L. R. Abrams 1916-6-30 5713 Contra Costa Mt. Diablo Comment
  JEPS111676  Grindelia hirsutula D. G. Kelch 2003-8-13 03 .103 Contra Costa Martinez Marsh 0 Comment
  JEPS41884  Grindelia hirsutula W. L. Jepson 1895-9-14 Contra Costa Walnut Creek Comment
  UC1599361  Grindelia hirsutula Katharine Brandegee 1911-7-6 Contra Costa Pt. Isabel Pt. Isabel (near RR crossing) Comment
  UC1618424  Grindelia hirsutula Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10872 Contra Costa just w of Antioch Marina (Dow Wetlands Preserve); Dow Wetlands Preserve Comment
  UC63192  Grindelia hirsutula H. M. Hall 1901-3-17 1659 Contra Costa Point Richmond; San Francisco Bay Region Comment
  CAS-BOT-BC305240  Grindelia hirsutula John Thomas Howell 1929-9-21 4387 Contra Costa 4 miles west of Clayton Comment
  UC1292655  Guillenia flavescens A. R. Kruckeberg 1949-4-16 1735 Contra Costa 2 mi inside old North Entrance (not tollgate); Mount Diablo State Park Comment
  UC14399  Guillenia flavescens Chesnut and Drew 1889-4-17 Contra Costa Clayton Comment
  UC1736552  Guillenia flavescens Dean W. Taylor 1994-3-30 14108 Contra Costa Mt. Diablo (in Mt. Diablo State Park), 2 miles South along North Gate Road from the North Gate kiosk, 365 Comment
  JEPS54107  Guillenia lasiophylla H. P. Chandler 1900-3-24 Contra Costa Briones Hills Region of Mount Diablo Comment
  UC10944  Guillenia lasiophylla W. H. Brewer 1862-4-24 987 Contra Costa Camp 68 Martinez Comment
  UC10955  Guillenia lasiophylla Ivar Tidestrom 1893-4-15 Contra Costa Sheep Island Comment
  UC10956  Guillenia lasiophylla Alice Eastwood 1893-5-5 Contra Costa Brentwood Comment
  POM181442  Guillenia lasiophylla I. L. Wiggins 1930-4-17 4564 Contra Costa One mile east of Mountain House, on road to Byron. Comment
  CAS-BOT-BC304583  Gutierrezia californica Walter Knight 1965-9-7 1172 Contra Costa Overlooking San Joaquin River. Antioch sand dunes Comment
  JEPS79354  Gutierrezia californica Edward Lee with Annetta Carter 1935-8-17 1622 Contra Costa Antioch sand-dunes Antioch Comment
  UC912309  Gutierrezia californica Herbert L. Mason 1929-9-21 5435 Contra Costa 3 mi above Clayton (Marsh Creek Road) Comment
  POM301854  Gutierrezia californica Mary L. Bowerman 1938-11-12 3729 Contra Costa Lime Ridge toward crest of hillside N of break between 2 chaparral patches. 152 Comment
  UC2028110  Hainardia cylindrica Barbara Ertter with Christopher Baysdorfer 1998-5-10 16112 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, of Ohlone Trail. Comment
  RSA721203  Hedypnois cretica Barbara Ertter, Mary L. Bowerman 1995-6-11 14249 Contra Costa Shell Ridge Recreation Area southwest of Walnut Creek, at west base Mt.Diablo; near Indian Valley School entrance. 91 Comment
  CAS-BOT-BC314697  Helianthella californica var. californica Paul F. Covel 1936-4-19 233 Contra Costa Hilltop above L. Trampas Cn. Comment
  CAS-BOT-BC305328  Helianthella castanea John Thomas Howell 1931-5-12 6475 Contra Costa Nortonville Comment
  JEPS85476  Helianthella castanea Leonora M. Ellis 1990-5-11 Contra Costa w Alamo (Horseman's Canyon and canyon to the w); Tice Valley 228 Comment
  UC194923  Helianthella castanea H. M. Hall 1916-5-31 10137 a Contra Costa exposed flat on s side Mt. Diablo Comment
  UC62937  Helianthella castanea H. M. Evans 1907-4-6 Contra Costa Pine Canyon, Mt. Diablo Comment
  UC691738  Helianthella castanea Mary L. Bowerman 1930-6-10 301 Contra Costa Summit Meridian Peak; Mount Diablo Comment
  UC2028219  Helianthella castanea Barbara Ertter with Christopher Baysdorfer 1998-5-10 16127 Contra Costa West side Lime Ridge Open Space northwest of Mount Diablo. Comment
  CAS-BOT-BC305671  Helianthus gracilentus Mary L. Bowerman 1932-10-1 1602 Contra Costa Mount Diablo. Mitchell Canyon Comment
  SEINET3861359  Heliotropium convolvulaceum K., L.; N. Thorne; J. Chandler 1986-7-27 4964 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough. SE portion of Bethel Slough.; 0 610 Comment
  UCR197902  Heliotropium curassavicum Beecher Crampton 1949-7-15 486 Contra Costa Below original site of Judsonville, at head of Lone Tree Valley, along Sand Creek, just before coming to Lee Higgins Empire Ranch 114 Comment
  UCD32429  Helminthotheca echioides Beecher Crampton 1950-6-16 593 Contra Costa Richmond. Comment
  CAS-BOT-BC305872  Helminthotheca echioides R. E. Frenkel 1964-2-22 365 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  UC201234  Hemizonia congesta subsp. lutescens H. M. Hall 1914-8-23 9860 Contra Costa 2 km nw of town Road to Giant; San Pablo 9 Comment
  CAS-BOT-BC306262  Hemizonia congesta subsp. lutescens H. M. Hall 1916-10-14 10282 Contra Costa Region of San Francisco Bay. Selby 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
  JEPS12597  Hemizonia congesta subsp. luzulifolia R. F. Hoover 1937-9-2 2709 Contra Costa Walnut Creek Comment
  UC691557  Hemizonia congesta subsp. luzulifolia Mary L. Bowerman 1933-9-9 2426 Contra Costa se-facing slope above Curry Canyon (onway to Blackberry Spring); Mount Diablo Comment
  CAS-BOT-BC314862  Hemizonia congesta subsp. luzulifolia Mary L. Bowerman 1938-9-11 3713 Contra Costa Curry Canyon where Sulphur Spring Canyon joins it, Mount Diablo 259 Comment
  CAS-BOT-BC314863  Hemizonia congesta subsp. luzulifolia Chas. M. Belshaw 1936-10-26 2722 Contra Costa Near Walnut Creek, Coast Ranges Comment
  JEPS116747  Hemizonia congesta subsp. luzulifolia David Gowen 2006-10-2 662 Contra Costa Wildcat Regional Park on Nimitz Way just south of trail heading east to San Pablo Reservoir. Comment
  UC217362  Hemizonia congesta subsp. luzulifolia H. M. Hall 1917-5-27 10314 Contra Costa Fish Ranch San Francisco Bay Region, Berkeley Hills Comment
  UC691542  Hemizonia congesta subsp. luzulifolia Mary L. Bowerman 1932-5-1 1405 Contra Costa grassy knoll e of creek and just n water tank; Mount Diablo, Alamo Canyon Comment
  UC990629  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1909-9-24 Contra Costa San Ramon Road above Hayward (canyon) Comment
  CDA6977  Hemizonia corymbosa D. G. Kelch, A. G. Murdock 2004-5-7 4 .179 Contra Costa Carquinez Strait; Canada del Cierbo. Comment
  POM301046  Hemizonia fitchii Mary L. Bowerman 1936-9-17 3548 Contra Costa North Road 2.5 miles from North Gate. 244 Comment
  POM30955  Hemizonia kelloggii Katherine Brandegee 1907-5-5 19 Contra Costa Near Antioch. Comment
  POM194887  Hemizonia lutescens H. M. Hall 1914-8-23 9860 Contra Costa San Pablo 9 Comment
  RSA81510  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1909-9-25 s.n. Contra Costa Walnut Creek. Comment
  RSA81676  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1909-9-24 s.n. Contra Costa San Ramon Road, above Hayward. Comment
  CDA38358  Heracleum lanatum A. G. Murdock 2004-4-3 260 Contra Costa Vaca Canyon. Comment
  JEPS75523  Heracleum lanatum P. F. Yorks 1974-5-19 160 B Contra Costa n. Briones Reservoir (ca. 1.7 km. s. of Bear Creek Rd. on Hampton Rd. in Hampton Road Natural Reserve); Hampton Road Natural Reserve 180 Comment
  JEPS33796  Hesperevax sparsiflora W. L. Jepson 1925-4-26 10685 Contra Costa grassy adobe hills by Green Valley (Mt. Diablo); Mt. Diablo Comment
  JEPS111742 Image available Hesperevax sparsiflora var. sparsiflora D. G. Kelch 2005-3-25 05 .91 Contra Costa Fernandez Ranch Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak 80 Comment
  UC1618408  Hesperevax sparsiflora var. sparsiflora Barbara Ertter, Chris Thayer 1993-5-7 11709 Contra Costa 1/2 mi n of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land e of Tilden Park 457 Comment
  UC1818919  Hesperocnide tenella Barbara Ertter, Mary Bowerman et al. 1995-5-7 14054 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, road behind honses traversing north facing slope, mixed forest with much undergrowth. Comment
  CAS-BOT-BC167428  Hesperolinon breweri M. K. Curran 1884-1-1 s.n. Contra Costa Antioch Comment
  JEPS22969  Hesperolinon breweri Volney Rattan Jun 1886 Contra Costa Mt. Diablo Comment
  UC1212213  Hesperolinon breweri Rimo Bacigalupi and Alex Hawkes 1951-6-4 3360 Contra Costa saddle between main and n peaks Inner South Coast Ranges, Mount Diablo 883 Comment
  SEINET6691243  Hesperolinon breweri K. Brandegee 1907-6-16 34 Contra Costa Hills between Antioch and Marsh Creek, on the easterly side of Mt. Diablo. Comment
  UCD95453  Hesperomecon linearis Annetta M. Carter 1933-4-23 298 Contra Costa above the San Joaquin River, between Antioch Bridge and Antioch. Comment
  JEPS11798  Heterocodon rariflorum Mary L. Bowerman 1935-6-15 3133 Contra Costa Mitchell Canyon; Mount Diablo 640 Comment
  SEINET11915755  Heteromeles arbutifolia M. T. Doutt 1930-1 87 Contra Costa Marsh Creek Comment
  JEPS111693  Heterotheca grandiflora D. G. Kelch 2004-4-3 04 .52 Contra Costa Martinez - Vine Hill West of 680. North of highway 4. 44 Comment
  JEPS20381  Heterotheca grandiflora Joseph P. Tracy 1932-9-10 10783 Contra Costa e of Pinole (on Franklin Canyon Road); Rodeo Creek 91 Comment
  UC723790  Heterotheca grandiflora Joseph Andorfer Ewan 1935-3-10 9152 Contra Costa esp. on bluffs overlooking Sacramento River at Antioch Sacramento River Comment
  CAS-BOT-BC318824  Heterotheca grandiflora A. j. Soares 1925-11-1 s.n. Contra Costa Hayward Comment
  RSA39828  Heterotheca sessiliflora subsp. echioides P. A. Munz 1947-10-8 12189 Contra Costa Antioch 12 Comment
  UC2027735  Heterotheca sessiliflora subsp. echioides Barbara Ertter 1997-2-16 15458 Contra Costa Shell Ridge Open Space on west flank of Mount Diablo. Comment
  RSA23172  Hibiscus californicus I. L. Wiggins 1938-8-15 9006 Contra Costa Banks of Old River branch of San Joaquin River at Highway #4. Comment
  JEPS75529  Hirschfeldia incana P. F. Yorks 1976-5-31 509 Contra Costa n. Briones Reservoir (ca. 2 km. s. of Bear Creek Rd. on Hampton Rd. in Hampton Natural Reserve); Hampton Natural Reserve 200 Comment
  UCD84891  Holcus mollis David L. Hanson 1978-3-7 s.n. Contra Costa Contra Costa County. Comment
  JEPS111679  Holocarpha heermannii D. G. Kelch 2003-8-13 03 .129 Contra Costa Pig Sale 250 Comment
  UC532123  Holocarpha heermannii David D. Keck 1933-10-28 2605 Contra Costa 4.5 mi s Martinez (on road to Pacheco) Comment
  CAS-BOT-BC320201  Holocarpha heermannii John Thomas Howell 1955-8-24 30901 Contra Costa Near Diablo Country Club Comment
  CAS-BOT-BC325832  Holocarpha heermannii John Thomas Howell 1930-9-28 5499 Contra Costa 6.3 miles from Byron on teh Marsh Creek Road Comment
  CAS-BOT-BC325833  Holocarpha heermannii John Thomas Howell 1929-9-21 4389 Contra Costa 5 miles se. of Clayton on Marsh Creek Road Comment
  CAS-BOT-BC325841  Holocarpha heermannii L. R. Abrams 1910-10-8 4337 Contra Costa Green Valley, Mt. Diablo 304 Comment
  CAS-BOT-BC325848  Holocarpha heermannii L. S. Rose 1941-10-13 41465 Contra Costa 1 mile east of Walnut Creek 50 Comment
  RSA298252  Holocarpha heermannii Joseph A. Ewan 1933-10-15 8045 Contra Costa South slope of Mt. Diablo 1067 Comment
  UC691478  Holocarpha heermannii Mary L. Bowerman 1931-9-12 1039 Contra Costa 838 Comment
  CAS-BOT-BC320221  Holocarpha macradenia Walter Knight; Irja Knight 1977-9-12 3161 Contra Costa At SE corner of A-pian [Appian] Way and Highway I-80. Pinole Comment
  UCD133200  Holocarpha macradenia Robert E. Preston 1993-6-29 624 Contra Costa Pinole, ca. 1,000 feet east of Interstate 80, between Interstate 80 and Crespi Junior High School. 94 Comment
  CAS-BOT-BC320254  Holocarpha obconica David D. Keck 1933-11-2 2621 Contra Costa Deer Valley, 1/2 mi. S. of road to Brentwood Comment
  CAS-BOT-BC123420  Holocarpha obconica subsp. autumnalis David Daniels Keck; Jens Chr. Clausen 1933-10-27 2567 Contra Costa 1.6 miles W of Byron, 1.4 miles from junction with Vasco Road Comment
  CAS-BOT-BC320327  Holocarpha virgata David D. Keck 1933-10-27 2568 Contra Costa 1.6 mi. W. of Byron, 1.4 mi. from junction with Vasco Road Comment
  SEINET5782142 Image available Holocarpha virgata L. S. Rose 1941-10-16 41467 Contra Costa 2 mi W of Byron Comment
  CAS-BOT-BC320325  Holocarpha virgata David D. Keck 1933-11-2 2623 Contra Costa 5 mi. SE. of Clayton on Marsh Creek Road just opposite Mt. Diablo Comment
  CAS-BOT-BC320326  Holocarpha virgata David D. Keck 1933-11-2 2620 Contra Costa Horse Valley between Lone Tree Way and Marsh Creek Road, 6 miles from Antioch Comment
  CAS-BOT-BC324619  Holocarpha virgata John Thomas Howell 1929-9-21 4389 Contra Costa 5 miles southeast of Clayton on Marsh Creek Road Comment
  UC1127988  Holodiscus discolor R. C. Wilson 1935-3-19 141 Contra Costa 1 mi se of Wall Point (Quadrangle Mount Diablo); Quadrangle Mount Diablo 426 Comment
  UC691113  Holodiscus discolor Mary L. Bowerman 1935-6-21 3146 Contra Costa Mount Diablo, east fork Arroyo Del Cerro, several hundred yards below the spring Arroyo Del Cerro; Mount Diablo, Arroyo Del Cerro 289 Comment
  UC50655  Hordeum depressum Jos. Burtt Davy May 1898 Contra Costa Danville Comment
  UCD85614  Hordeum depressum Beecher Crampton 1968-3-27 8234 Contra Costa SE corner, ca. 3.5 miles south of Byron. Comment
  UCD85761  Hordeum jubatum V. P. Osterli 1951-7-1 s.n. Contra Costa Oakley area. Comment
  JEPS100008  Hordeum marinum S. O'Neil 2003-5-8 SEO 27 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SEINET4182779 Image available Hordeum marinum subsp. gussoneanum Barbara Ertter, Jim Jokerst, Dave Magney 1989-4-5 8140 Contra Costa Alkali sink West and adjacent Clifton Court Forebay, circa 15 air miles Southwest of Stockton 0 Comment
  UC1132529  Hordeum marinum subsp. gussoneanum C. M. Belshaw 1936-5-7 2049 Contra Costa 2 mi s Danville; Mt. Diablo Quad. Comment
  CAS-BOT-BC289560  Hordeum marinum subsp. gussoneanum R. E. Frenkel 1963-5-22 207 Contra Costa On Morgan Territory Road, 0.2 mile south of summit 637 Comment
  SEINET10826946  Hordeum marinum subsp. gussoneanum A. Arthur Heller 1928-4-15 Heller 14498 Contra Costa Low ground near Byroa in clay soil. Comment
  UC1950125  Hordeum marinum subsp. gussoneanum Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8121 Contra Costa alkali sink W and adjacent to Clifton Court Forebay, ca 15 airmiles SW of Stockton Comment
  CAS-BOT-BC284743  Hordeum murinum Walter Knight; Irja Knight 1980-8-26 3802 Contra Costa Growing in Hercules Comment
  POM205088  Hordeum murinum subsp. glaucum Jos Burtt Davy 1898-05 1730 Contra Costa Danville Comment
  CAS-BOT-BC284889  Hordeum murinum subsp. leporinum Alice Eastwood 1921-4-18 10264 Contra Costa Antioch Comment
  UC691094  Horkelia californica subsp. dissita Mary L. Bowerman 1932-11-25 1666 Contra Costa Mount Diablo, Silver Spring Comment
  UC2062668  Horkelia californica subsp. frondosa Barbara Ertter 2002-8-24 18015 Contra Costa East end of Olympia Trail on NE side of Mount Diablo, at junction with uphill trail near intersection of Marsh Creek Road and Morgan Territory Road. Comment
  POM181476  Hypochaeris glabra I. L. Wiggins 1930-4-18 4596 Contra Costa East end of Jersey Island. Comment
  UC691452  Hypochaeris glabra Mary L. Bowerman 1931-4-11 691 Contra Costa Pine Canyon 121 Comment
  RSA31227  Hypochaeris glabra Joseph A. Ewan 1936-5-3 9492 Contra Costa W slope of Wildcat Canyon near Shasta Road. Comment
  CAS-BOT-BC311409  Hypochaeris radicata R. E. Frenkel 1964-2-22 358 Contra Costa On Giant Road, 0.4 mile north ATSF RR crossing, Richmond 15 Comment
  UC2028408  Iris pseudacorus Barbara Ertter with Richard K. Brummitt 1998-5-16 16096 Contra Costa Antioch Marina, edge of brackish marsh Comment
  UC692078  Isoetes howellii Mary L. Bowerman 1935-7-22 3187 Contra Costa s. side Meridian Peak (Hidden Pond); Mt. Diablo, Hidden Pond 518 Comment
  UCD15912  Isolepis cernua Molly Hunter 1998-7-7 s.n. Contra Costa Concord Naval Weapons Station, along Highway 4, Northeast of city of Concord (about 300 meters South of Suisun Bay). 0 Comment
  CAS-BOT-BC324753  Iva axillaris Morris Halperin 1930-5-20 s.n. Contra Costa Hoffman Ranch, Brentwood Comment
  CAS-BOT-BC340120  Jaumea carnosa Walter Knight; Joanne Dean 1978-8-14 3129 Contra Costa Browns Island Comment
  CHSC93636  Juglans californica var. hindsii Paul Kirk; Joe Callizo 2001-10-8 9 Contra Costa City of Lafayette Community Park, W side of Las Trampas Creek, 1 m E of backyard property line of home at 615 Burton Rd. 119 Comment
  CAS-BOT-BC102303  Juglans hindsii D. E. Stone; B. L. Stone 2004-7-9 4286 Contra Costa Just inside entrance to northern perimeter of Mount Diablo State Park, at terminus of Mitchell Canyon Rd south of 172 Comment
  POM166816  Juglans hindsii L. R. Abrams 1916-7-29 s.n. Contra Costa Walnut Creek 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
  CDA9514  Juncus acuminatus D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .241 Contra Costa CA Delta; Along Clifton Court Near Clifton Court Forebay. Comment
  RSA0027709  Juncus articulatus Barbara Ertter 1996-9-19 15300 Contra Costa Antioch Marina, edge of bay in Dow Marsh lands. Comment
  JEPS112439  Juncus balticus D. G. Kelch 2004-4-26 04 .134 Contra Costa Point Pinole Pt Pinole 3 Comment
  JEPS112446  Juncus balticus D. G. Kelch 2003-8-13 03 .108 Contra Costa Martinez Marsh 0 Comment
  JEPS112451  Juncus balticus D. G. Kelch 2005-4-24 05 .180 Contra Costa Franklin Canyon Franklin Canyon. Collier Hill. West Carbon. 16 Comment
  UC1619919  Juncus balticus Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10681 Contra Costa n Pittsburg (near confluence of Sacramento and San Joaquin Rivers opposite Pittsburg Marina, marsh at edge of lagoon in center of w end of island); Browns Island Comment
  UC691939  Juncus balticus Mary L. Bowerman 1933-9-15 2444 Contra Costa s-face Meridian Peak; Mount Diablo, , Hunt Spring 762 Comment
  CHSC116624  Juncus balticus subsp. ater Lowell Ahart; Josephine Guardino 2016-4-19 20785 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along a small drainage, west of the poor dirt road, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  JEPS100049  Juncus bufonius A. Langston 2003-6-6 AL 39 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691983  Juncus bufonius var. bufonius Mary L. Bowerman 1931-4-4 635 Contra Costa Mount Diablo, 2 mi by road from West Entrance = North Gate Mount Diablo Comment
  UC2028973  Juncus bufonius var. bufonius Barbara Ertter with Brad Olson et al. 2000-6-2 17300 Contra Costa north side Brushy Peak Regional Preserve NE of Livermore. Comment
  JEPS127264  Juncus bufonius var. congestus Lowell Ahart, Josephine Guardino 2016-4-19 20786 Contra Costa 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest to Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  UC2028166  Juncus bufonius var. congestus Barbara Ertter 1998-5-3 16078 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, near Wall Point, SW-facing bank above road. Comment
  POM300635  Juncus mexicanus Mary L. Bowerman 1933-9-15 2443 Contra Costa Mount Diablo; Hunt Spring. 762 Comment
  JEPS112438  Juncus occidentalis D. G. Kelch 2004-4-26 04 .144 Contra Costa Point Pinole 30 Comment
  UC1619922  Juncus occidentalis Barbara Ertter, Brad Olson 1991-11-10 10887 Contra Costa behind yacht harbor (extreme w Richmond); Richmond, Point San Pablo Comment
  UC691913  Juncus patens Mary L. Bowerman 1933-9-9 2436 Contra Costa Frog Pond Mount Diablo Comment
  SEINET6174578  Juncus patens M. L. Bowerman 1932-11-26 1674 Contra Costa Patens Spring (on north side of west road between Corral Spring and Boulevard Spring) Comment
  JEPS112448  Juncus phaeocephalus var. paniculatus A. G. Murdock 2004-5-28 276 Contra Costa Refugio Valley 120 Comment
  RSA0027402  Juncus phaeocephalus var. paniculatus Barbara Ertter 1999-7-17 16765 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, Wildcat Creek Trail between Rifle Range Road and boundary with Tilden Regional Park. On east side of road. Comment
  RSA368317  Juncus phaeocephalus var. paniculatus H. de Forest 1930-5-7 s.n. Contra Costa Road near Morage. Comment
  CDA15284  Juncus phaeocephalus var. phaeocephalus G. F. Hrusa, D. Crowe, R. York 1998-7-17 14722 Contra Costa Sacramento Delta; Antioch-Pittsburg Hwy. at E end of Dow Chemical property. 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
  JEPS112436  Juncus xiphioides D. G. Kelch 2004-5-7 04 .201 Contra Costa Ca ada del Cierbo 40 Comment
  POM210639  Juncus xiphioides Joseph A. Ewan 1933-10-15 8019 Contra Costa SW slope of Mt. Diablo. Comment
  JEPS48238  Juniperus californica W. L. Jepson 1918-6-5 7617 Contra Costa North Peak, Mt. Diablo Mt. Diablo, North Peak 822 Comment
  JEPS48303  Juniperus californica W. L. Jepson 1920-9-6 9084 a Contra Costa Mt. Diablo Comment
  UC1076380  Juniperus californica Herbert L. Mason 1923-11-12 850 Contra Costa middle slopes Mt. Diablo Comment
  UC1119870  Juniperus californica H. A. Jensen 1934-8-19 383 Contra Costa 1 mi nw North Peak; Mt. Diablo Quadrangle Comment
  UC81  Juniperus californica A. Kellogg 78 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC80926  Juniperus californica Mary L. Bowerman 1932-10-9 1629 Contra Costa North Peak: Ridge on northeast side (above Gabriel-Hinks') 685 Comment
  SEINET10531634  Juniperus californica Lewis S. Rose 1941-3-22 Rose 41052 Contra Costa Mt. Diablo, west slope. 915 Comment
  UC691218  Koeleria macrantha Mary L. Bowerman 1935-6-1 3110 Contra Costa largest ridge between Ransom Point Ridge and Mitchell-Pine divide Mount Diablo; , btw Ransom Point ridge and Mitchell-Pine divid 1066 Comment
  UCD85717  Koeleria macrantha P. M. Booth 1932-5-1 725 Contra Costa El Cerrito. Comment
  RSA656753  Koeleria macrantha Beecher Crampton 1956-5-14 3394 Contra Costa 3.7 miles southeast of Clayton. Comment
  SEINET10607073  Koeleria macrantha Virginia E. Long 1933-6-14 Long 223 a Contra Costa Mt. Diablo. On top of grassy ridge between Curry Cave trail canyon & W. fork. 457 Comment
  CAS-BOT-BC273613  Koeleria pyramidata Mary L. Bowerman 1933-5-3 1983 Contra Costa Mount Diablo. Indian Ceremonial Canyon 731 Comment
  RSA74883  Lactuca serriola Elroy Robinson 1935-9-14 s.n. Contra Costa Martinez Comment
  CAS-BOT-BC340536  Lactuca serriola Walter Knight 1978-10-4 3315 Contra Costa Browns Island Comment
  CAS-BOT-BC340537  Lactuca serriola Walter Knight; Irja Knight; J. T. Howell; E. McClintock 1978-9-5 3236 Contra Costa Browns Island Comment
  CDA7515  Lactuca virosa J. T. Howell 1943-8-22 19310 Contra Costa Near head of San Leandro Creek Canyon. Comment
  POM303721  Lactuca virosa J. T. Howell 1943-8-22 19310 Contra Costa Near head of San Leandro Creek Canyon. 244 Comment
  CAS-BOT-BC341474  Lagophylla ramosissima John Thomas Howell 1925-11-1 1550 Contra Costa Hillside near Pinehurst, San Leandro Canyon Comment
  UC1818897  Lagophylla ramosissima Barbara Ertter, Mary Bowerman et al. 1995-5-7 14062 Contra Costa Three Springs Trail on NE side of Mount Diablo SE of Clayton, small serpentine patch at road junction Comment
  JEPS128773  Lamarckia aurea Kevin Hintsa 2000-6-5 Contra Costa 3101 Finley Road at SE base of Mount Diablo. Comment
  CDA42441  Lamium purpureum D. G. Kelch, Daniel Weinstein 2013-3-9 13 .018 Contra Costa Carquinez Strait; Crockett. Comment
  JEPS10382  Lasthenia californica subsp. californica W. L. Jepson 1931-4-5 15718 Contra Costa adobe flat in hills about Nortonville 457 Comment
  UC34167  Lasthenia californica subsp. californica Harley P. Chandler 1901-4-5 993 Contra Costa Mt. Diablo Comment
  UC33074  Lasthenia conjugens J. Burtt Davy 1895-4-7 968 Contra Costa Antioch; ; Antioch, Contra Costa Co. Comment
  RSA537664  Lasthenia ferrisiae Barbara Ertter, Jokerst, D. Magney 1989-4-5 8124 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  UC194265  Lasthenia glaberrima Edward Lee Greene 1886-5-24 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC352929  Lasthenia glaberrima Albert Kellogg date not specified s.n. Contra Costa Antioch Comment
  JEPS35366  Lasthenia glabrata subsp. glabrata W. L. Jepson 1923-4-22 Contra Costa Mt. Diablo Comment
  UC691499  Lasthenia glabrata subsp. glabrata Mary L. Bowerman 1933-5-5 2000 Contra Costa Alamo Canyon 304 Comment
  UC1301065  Lasthenia gracilis Helen K. Sharsmith 1963-4-7 5290 Contra Costa e side Kirker Pass Road (w of Antioch); San Francisco Bay Region 152 Comment
  UC71908  Lasthenia gracilis The Postmaster 1900-3-24 Contra Costa Oakley Region of Mount Diablo Comment
  UC697156  Lasthenia microglossa Mary L. Bowerman 1936-4-23 3405 Contra Costa Mitchell-Pine Divide, northern most point Mount Diablo 838 Comment
  CAS-BOT-BC366302  Lasthenia minor Alice Eastwood 1921-4-18 10297 Contra Costa Antioch Comment
  CAS-BOT-BC366303  Lasthenia minor Alice Eastwood 1914-3-17 3830 Contra Costa Byron Springs Comment
  JEPS9811  Lasthenia minor Anna E. Ehlers 1920-4-18 557 Contra Costa near Mt. Diablo; Pine Canyon Comment
  CAS-BOT-BC205014  Lathyrus jepsonii var. jepsonii Walter Knight; Irja Knight; John Thomas Howell; Elizabeth McClintock; Stephen P. Rae; Bob Doyle 1978-9-5 3227 Contra Costa Botany Cove, Browns Island, delta region of the San Joaquin River Comment
  JEPS112357  Lathyrus jepsonii var. jepsonii Dean G. Kelch and Andrew G. Murdock 2004-6-4 325 Contra Costa Pacheco Marsh; County: Contra Costa. Comment
  JEPS78609  Lathyrus jepsonii var. jepsonii Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3301 Contra Costa Browns Island, South Landing Browns Island; , South Landing Comment
  SEINET10487284  Lathyrus sulphureus John G. Lemmon 1878-4-28 Lemmon s.n. Contra Costa Comment
  CDA27149  Lathyrus vestitus D. G. Kelch 2007-4-29 7 .205 Contra Costa Carquinez Strait; Richmond; Chevy s Hill N. Hilltop Dr. Comment
  POM19744  Lathyrus vestitus subsp. vestitus C. F. Baker 1903-4-28 2944 Contra Costa Mitchells Canyon, Mt. Diablo. Comment
  UC692237  Lathyrus vestitus var. vestitus Mary L. Bowerman 1931-4-19 742 Contra Costa above lower Deer Flat Mount Diablo, Deer Flat Comment
  UC764798  Lathyrus vestitus var. vestitus R. F. Hoover 1938-2-21 2757 Contra Costa Point Richmond Comment
  RSA666403  Lavatera cretica Barbara Ertter 1991-5-12 9813 Contra Costa Point Isabel Regional Shoreline in SW corner of El Cerrito, on San Francisco Bay. Comment
  JEPS13446  Layia chrysanthemoides R. F. Hoover 1939-4-25 4065 Contra Costa Richmond Hills Comment
  CAS-BOT-BC323908  Layia chrysanthemoides Brandegee no date on sheet s.n. Contra Costa Antioch Comment
  CAS-BOT-BC323928  Layia chrysanthemoides Alice Eastwood; John Thomas Howell 1935-4-7 2119 Contra Costa Near Byron Comment
  UC589705  Layia gaillardioides Douglas Horn 1938-4-24 61 Contra Costa w of Orinda 274 Comment
  UC691555  Layia gaillardioides Mary L. Bowerman 1933-4-22 1904 Contra Costa ridge w of upper end of Curry-Cave Point trail; Black Hills Comment
  CAS-BOT-BC321082  Layia glandulosa C. F. Baker 1909-5-20 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC321083  Layia glandulosa A. A. Heller 1908-4-16 8896 Contra Costa E of Antioch 22 Comment
  JEPS40029  Layia glandulosa H. L. Mason 1932-3-20 Contra Costa Antioch Comment
  UC761860  Layia glandulosa R. F. Hoover 1935-3-10 315 Contra Costa Antioch Comment
  CAS-BOT-BC327248  Layia hieracioides David D. Keck 1941-6-5 5307 Contra Costa Berkeley Hills, Fish Creek Rd., 0.25 mi W of E. portal of Broadway Tunnel 335 Comment
  JEPS89794  Layia platyglossa Dean William Taylor 1971-3-28 992 Contra Costa on Mount Diablo, Mount Diablo State Park Mount Diablo; Mount Diablo State Park, Mount Diablo 914 Comment
  SEINET3147924  Layia platyglossa L. S. Rose 1933-4-17 33093 Contra Costa Antioch Comment
  UC518017  Layia platyglossa Lewis S. Rose 1933-4-17 33093 Contra Costa Antioch Comment
  UC691492  Layia platyglossa Mary L. Bowerman 1933-5-2 1965 Contra Costa below and a little w Pioneer Camp; Mount Diablo Comment
  UC75378  Layia platyglossa unknown 1903-5-28 2874 Contra Costa Antioch Comment
  POM202803  Layia platyglossa subsp. platyglossa L. S. Rose 1933-4-17 33093 Contra Costa Antioch Comment
  SACT001393  Leersia oryzoides Malcolm Nobs 1948-9-23 Contra Costa Growing in shallow water along slough bank, just coming to bloom. 7 miles south Kingston. Comment
  UC2029072  Lemna gibba Barbara Ertter 2000-7-16 17412 Contra Costa Turtle Rock Ponds on east side of Pine Creek, west side of Mount Diablo. Comment
  UC692107  Lemna minuscula Mary L. Bowerman 1933-11-4 2459 Contra Costa Alder Springs, (most easterly of the springs) Alder Springs; Mount Diablo, Alder Springs 487 Comment
  CAS-BOT-BC534639  Lemna minuta Ira L. Wiggins 1930-4-18 4607 Contra Costa Jersey Island Comment
  CAS-BOT-BC215739  Lepechinia calycina Joanne Taylor 1941-7-18 18 Contra Costa Nortonville 243 Comment
  JEPS63250  Lepechinia calycina W. L. Jepson 1920-8-12 9077 Contra Costa Mount Diablo, towards summit Mount Diablo Comment
  JEPS78825  Lepechinia calycina Edward Lee 1936-5-24 2166 Contra Costa 10 miles from Marsh Creek Road, Morgan Territory Comment
  CAS-BOT-BC88680  Lepidium acutidens Lewis S. Rose 1956-3-19 56003 Contra Costa 2 miles southeast of Byron. 7 Comment
  CAS-BOT-BC89766  Lepidium latipes Barrett Anderson 1987-4-29 3483 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD. 125 Comment
  CAS-BOT-BC89896  Lepidium nitidum Lewis S. Rose 1933-3-29 33045 Contra Costa Pittsburg. Comment
  CHSC21607  Lepidium nitidum Willis Ball 1975-2-23 446 Contra Costa Contra Loma Regional Park. In area #2. Ca. 160 yds w of main parking lot. 30 Comment
  SBBG2518  Lepidium nitidum J. M. Tucker 1946-3-24 1380 Contra Costa hills between Nortonville and Somersville Comment
  UC1563902  Lepidium nitidum Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8123 Contra Costa ca 15 air mi sw Stockton (w and adjacent to Clifton Court Forebay, se Contra Costa Co.); se Contra Costa Co. Comment
  UC796578  Lepidium nitidum Reed C. Rollins 1946-3-25 3044 Contra Costa Mount Diablo, western slope Mount Diablo Comment
  JEPS68978  Lepidium nitidum var. nitidum Edward Lee 1935-3-29 1314 Contra Costa Nortonville, s. watershed of Kirker Creek Comment
  RSA0033847  Lepidium nitidum var. nitidum Barbara Ertter 2000-3-30 16922 Contra Costa North side of Mount Diablo, Bruce Lee Road between Back Canyon Trail and Coulter Pine Trail. Comment
  RSA537663  Lepidium nitidum var. oreganum Barbara Ertter, Jim Jokerst, D. Magney 1989-4-5 8127 Contra Costa SE Contra Costa: alkali sink W and adjacent to Clifton Court Forebay, ca 15 air miles SW of Stockton 0 Comment
  UC764785  Lepidium oxycarpum R. F. Hoover 1938-2-27 2785 Contra Costa Danville Comment
  UC1795745  Lepidium strictum Barbara Ertter, Mary Bowerman et al. 1995-5-7 14051 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, middle of dirt road below houses, edge of blue oak. Comment
  CDA37901  Leptochloa fascicularis D. G. Kelch, Mike Perlmutter 2011-9-23 11 .756 Contra Costa Entry to Discovery Bay. Comment
  CAS-BOT-BC274013  Leptochloa fusca subsp. uninervia Beecher Crampton 1959-10-19 5467 Contra Costa Vasco Road just north of its junction with Mt. Diablo Road, 4 miles south of Brentwood Comment
  CAS-BOT-BC226592  Leptosiphon ambiguus Mary L. Bowerman 1934-3-18 2481 Contra Costa Mount Diablo. West of Russelman Park on edge of Donner Canyon Comment
  UC2031424  Leptosiphon androsaceus Barbara Ertter 1991-6-1 10085 Contra Costa Las Trampas Regional Wilderness in hills W of Danville, Elderberry Trail ca. 1/2 mi from trailhead Comment
  UC2028122  Leptosiphon androsaceus Barbara Ertter with Richard K. Brummitt 1998-5-6 16086 Contra Costa Lower Donner Canyon Road on north base of Mount Diablo, ca 1/2 miles south of Donner cabin site. Comment
  RSA114063  Leptosiphon liniflorus H. L. Mason 1952-4-14 14265 Contra Costa 3.5 miles S of Byron Comment
  RSA167170  Leptosiphon liniflorus J. M. Tucker 1963-4-12 3686 Contra Costa On west side of Holey Road, 3 miles southeast of Byron. Comment
  UC2027920  Leptosiphon pygmaeus subsp. continentalis Barbara Ertter, Dan Norris 2001-4-8 17582 Contra Costa Lime Ridge Open Space east of Walnut Creek, high part of main ridge. Comment
  CAS-BOT-BC324113  Lessingia glandulifera var. glandulifera James McMurphy 1908-10-18 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC324112  Lessingia glandulifera var. glandulifera Walter Knight 1965-9-7 1171 Contra Costa Antioch Sand Dunes Comment
  JEPS20577  Lessingia pectinata var. tenuipes R. F. Hoover 1940-11-23 4696 Contra Costa 2 mi w Byron Comment
  JEPS79353  Lessingia pectinata var. tenuipes Edward Lee with Annetta Carter 1935-8-17 1621 Contra Costa Antioch Comment
  CAS-BOT-BC444385  Lewisia rediviva Paul F. Covel 1940-5-12 s.n. Contra Costa Summit, Mt. Diablo Comment
  JEPS78895  Leymus X multiflorus Edward Lee 1935-8-13 1616 Contra Costa Vaca Canyon; roadside Comment
  CAS-BOT-BC272216  Leymus triticoides Walter Knight 1978-8-27 3188 Contra Costa Contra Loma Regional Park 30 Comment
  SEINET3840826  Leymus triticoides Unknown 2006-6-23 6 .321 Contra Costa West Valona, West of the Zampa Bridge above San Pablo avenue, along a small stream draining north into the Western end of the Carquinez Strait 91 Comment
  CAS-BOT-BC272215  Leymus triticoides R. E. Frenkel 1964-7-25 704 Contra Costa In vicinity of PG&E pole on Morgan territory Road, 0.2 mile south of summit 637 Comment
  CAS-BOT-BC272217  Leymus triticoides Walter Knight 1965-9-7 1174 Contra Costa Along San Joaquin River bank, Antioch dunes Comment
  CAS-BOT-BC451580  Lilaea scilloides Walter Knight 1977-6-12 s.n. Contra Costa Morgan Territory land bank (se. of Mt. Diablo at head of Marsh Creek) 585 Comment
  UC1101455  Lilaeopsis masonii Herbert L. Mason April, 1954 Contra Costa n. end Antioch Bridge Comment
  UC692007  Lilium pardalinum Mary L. Bowerman 1935-6-21 3144 Contra Costa e fork Arroyo del Cerro; Mount Diablo 289 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
  UC1563862  Limonium californicum Barbara Ertter with Elizabeth Neese 1988-10-15 7981 Contra Costa El Cerrito; marsh w of I-580, w side along Rydin Road n of Central Ave. Comment
  JEPS108215  Linanthus ambiguus David Gowen 2005-4-26 268 Contra Costa Mt. Diablo State Park. Clayton Oaks Rd. (dirt), which follows the ridge east of Donner Canyon, ca 20 feet south of junction with Bruce Lee Trail. Comment
  UC23369  Linanthus androsaceus Jos. Burtt Davy 1901-4-21 6930 Contra Costa Wildcat Canyon Comment
  UC1618093  Linanthus ciliatus Donald G. Nelson 1937-4-29 518 Contra Costa Road from Pinole south towards Alhambra Road Pinole 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
  UC964003  Linanthus pygmaeus subsp. continentalis R. F. Hoover 1939-4-13 4020 Contra Costa w branch Head of Markley Canyon Comment
  JEPS116789  Linanthus pygmaeus subsp. continentalis David Gowen 2006-6-14 611 Contra Costa Morgan Territory Regional Park; At the NW end of Eagle Trail. Comment
  JEPS75536  Lithophragma affine P. F. Yorks 1975-5-15 397 Contra Costa N of Briones Reservoir (ca. 1.7 km S of Bear Creek Road on Hampton Road); Hampton Road Natural Reserve 180 Comment
  SEINET3817186 Image available Lithophragma affine Lewis S. Rose 1933-4-17 33099 Contra Costa Walnut Creek. 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
  UC2028077  Lithophragma heterophyllum Barbara Ertter, Tony Morosco 1998-4-12 15997 Contra Costa Base of Mount Olympia on north side of Mount Diablo, talus above quarry NE of Olympia Trail. Comment
  UC1051271  Lobelia tupa N. Floy Bracelin 1941-6-29 1262 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC912261  Logfia filaginoides Lucile Mason 1934-4-8 Contra Costa Marsh Creek- Livermore Road; Curry Creek Comment
  UC38784  Lolium multiflorum J. Burtt Davy 1897-9-4 4078 Contra Costa Stege Comment
  UC606746  Lolium perenne Edward Lee 1936-4-19 1973 Contra Costa Red Rock , se shore Red Rock (San Francisco Bay) Comment
  RSA762301  Lolium perenne subsp. multiflorum William J. Ferlatte, L. M. Moe 1970-4-27 1221 Contra Costa San Francisco Bay, Red Rock Island. Comment
  UCD66482  Lolium temulentum Beecher Crampton 1956-5-14 3408 Contra Costa Southern boundary of Mt. Diablo State Park. Comment
  UCD127622  Lomatium dasycarpum P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UC763127  Lomatium dasycarpum subsp. dasycarpum R. F. Hoover 1939-4-13 4017 Contra Costa Markley Canyon, head of W branch Comment
  JEPS17116  Lomatium macrocarpum M. K. Curran May 1885 Contra Costa Antioch Comment
  POM287829  Lomatium macrocarpum Lyman Benson 1935-3-16 6264 Contra Costa Mt. Diablo, Watershed: Walnut Creek; Mountain Range: Mt. Diablo. 915 Comment
  UC140639  Lomatium macrocarpum Katharine Curran May 1885 Contra Costa Antioch Comment
  UC2028148  Lomatium macrocarpum Barbara Ertter 1998-4-4 15965 Contra Costa Shell Ridge Open Space northwest of Mount Diablo and Indian Valley School. Comment
  POM132672  Lomatium nudicaule A. D. E. Elmer 1903-05 4322 Contra Costa Mount Diablo Comment
  UC692350  Lomatium nudicaule Mary L. Bowerman 1933-6-7 2251 Contra Costa Mt. Diablo, North Peak Saddle Comment
  UC1123054  Lomatium utriculatum C. M. Belshaw 1936-5-12 2105 Contra Costa 1 mi S of Mt. Diablo summit (Tassajero[sic] Road) 335 Comment
  UC691471  Lomatium utriculatum Mary L. Bowerman 1930-6-5 260 Contra Costa 5.8 mi from North Gate (North Road); Mount Diablo 457 Comment
  JEPS12841  Lonicera hispidula var. vacillans W. L. Jepson May 23 1891-May 24 1891 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC240662  Lonicera interrupta H. E. McMinn 1922-6-2 91 Contra Costa N.E. slope of Mt. Diablo Comment
  CAS-BOT-BC241458  Lonicera involucrata var. ledebourii Ira L. Wiggins 1930-4-18 4594 Contra Costa Levee, east end of Jersey Island Comment
  UC1618284  Lonicera japonica Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10694 Contra Costa opposite Pittsburg Marina (in center of w end of Browns Island n of Pittsburg near confluence of Sacramento and San Joaquin Rivers); Browns Island Comment
  UC1050675  Lonicera pileata f. yunnanensis N. Floy Bracelin 1941-4-20 1183 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC234843  Lonicera subspicata var. denudata Mary L. Bowerman 1932-10-16 1634 Contra Costa Mount Diablo. Donner Canyon basin: on west-facing slope of ridge east of Median Ridge 487 Comment
  UC1795754  Lotus corniculatus Barbara Ertter, Kristin Ertter 1995-7-11 14473 Contra Costa Sulfur Spring on Pine Cr, Diablo Foothills Regional Park SW of Walnut Creek, marshy wet ground. 121 Comment
  UC1819023  Lotus corniculatus Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14637 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; along stream above stable, riparian vegetation. 91 Comment
  POM161235  Lotus crassifolius Rimo Bacigalupi 1926-4-30 1350 Contra Costa Summit of Mt Diablo. Comment
Read comments Nov 9 2011
  CDA31161  Lotus micranthus D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .22 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  UC69634  Lotus scoparius Jos. Burtt Davy 1895-1 Contra Costa Moraga Pass Comment
  JEPS100073  Lotus scoparius var. scoparius G. Smick 2003-5-30 GAS 201 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS108357  Lotus strigosus David Gowen, Abby Moore, Mike Park 2005-4-10 226 Contra Costa Lime Ridge Open Space. Growing on sandy trail in NE area of park. Comment
  JEPS41057  Lotus wrangelianus Rimo Bacigalupi, and L. R. Heckard 1965-5-11 9082 Contra Costa sw of Richmond; San Francisco Bay, Brooks Island 30 Comment
  JEPS55837  Lotus wrangelianus W. L. Jepson May 22 1891-May 23 1891 13796 Contra Costa Mt. Diablo Comment
  UC692266  Lotus wrangelianus Mary L. Bowerman 1932-4-27 1393 Contra Costa canyon w of Riggs Canyon (s-face of Oyster Ridge); Mount Diablo, Oyster Ridge 335 Comment
  UC178931  Lupinus Katharine Brandegee Contra Costa Walnut Creek Comment
  JEPS77021  Lupinus albifrons Robert M. Lloyd 1963-3-17 2146 Contra Costa 1 mi s intersection of Grizzly Peak and Skyline on Skyline; on Skyline Comment
  LA205021  Lupinus albifrons J. A. Ewan; 1934-3-10 8645 Contra Costa Wildcat Canyon, 2 mi below Orinda Rd bridge, Comment
  UC1129295  Lupinus albifrons var. albifrons C. M. Belshaw 1936-5-8 2059 Contra Costa 2.25 mi e Clayton; Mt. Diablo quad 381 Comment
  UC692573  Lupinus albifrons var. albifrons Mary L. Bowerman 1931-4-5 676 Contra Costa below Gregory Ranch Mount Diablo (Mt. Diablo) Comment
  CAS-BOT-BC201372  Lupinus albifrons var. albifrons Paul F. Covel 1938-6-26 s.n. Contra Costa Las Trampas Canyon - behind St. Mary's Comment
  CAS-BOT-BC201373  Lupinus albifrons var. albifrons Charles Piper Smith 1947-8-8 47709 Contra Costa Crow Creek Canyon Road - San Ramon Summit Comment
  RSA29244  Lupinus albifrons var. albifrons Joseph A. Ewan 1934-3-10 8645 Contra Costa 2 mi. below Orinda Road bridge, Wildcat Canyon. Comment
  UC1607626  Lupinus albifrons var. collinus Barbara Ertter 1991-5-5 9772 Contra Costa halfway up E ridge Rose Hill (above cemetary, Black Diamond Mines Regional Preserve s of Pittsburg); Black Diamond Mines Regional Preserve, Rose Hill 365 Comment
  JEPS111410  Lupinus bicolor J. Shade 2009-4-20 Contra Costa Robert Sibley Volcanic Regional Preserve. On Loop Trail, by cliff overlooking Quarry pit. Comment
  UC15930  Lupinus bicolor W. H. Brewer 1862-5-23 1149 Contra Costa se Monte Diablo; se of Monte Diablo Comment
  SEINET10970226  Lupinus bicolor subsp. tridentatus Charles Piper Smith 1922-4-15 Smith 3492 Contra Costa Antioch - Southern Pacific Railroad Depot - 0.5 mi W. Comment
  UCD107012  Lupinus chamissonis Beecher Crampton 1973-3-26 8907 Contra Costa 2 miles S.E. of Oakley. Comment
  UCD107761  Lupinus formosus P. B. Kennedy 1916-5-11 12 Contra Costa Grand View Terrace; Richmond District. Comment
  UC1129458  Lupinus formosus var. formosus C. M. Belshaw 1936-5-7 2044 Contra Costa 2 mi s San Ramon; Mt. Diablo Quad. Comment
  UC1795812  Lupinus formosus var. formosus Barbara Ertter, Brad Olson 1994-5-7 12751 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  CDA31091  Lupinus microcarpus var. densiflorus D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .216-B Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  SEINET8056959  Lupinus microcarpus var. densiflorus H. A. Walker 1911-7-8 2526 Contra Costa Near Point Isabel, east shore of San Francisco Bay Comment
  UC201010  Lupinus microcarpus var. microcarpus Katharine Brandegee June 1918 Contra Costa Richmond Annex; El Dorado St. Comment
  UC201020  Lupinus microcarpus var. microcarpus Katharine Brandegee June 1918 Contra Costa along El Dorado St. Richmond Annex (Richmond Annex) Comment
  UC201035  Lupinus microcarpus var. microcarpus Katharine Brandegee 1918-6 Contra Costa Richmond Annex Comment
  UC201037  Lupinus microcarpus var. microcarpus Katharine Brandegee 1918-6-19 Contra Costa Richmond Annex , base of a rocky hill (El Dorado St.) Comment
  UCD108868  Lupinus microcarpus var. microcarpus P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UC2028214  Lupinus nanus Barbara Ertter with Richard K. Brummitt 1998-5-13 16132 Contra Costa Summit Road on Mount Diablo, base of rock outcrop/roadcut above Juniper Camp. Comment
  UCD109334  Lupinus pachylobus A. A. Heller 1913-12-9 11150 Contra Costa hills eight miles north of Oroville near the western base of Table mountain. The type was collected by Greene on the 'Briones Hills, east of San Pablo Creek, Contra Costa County, California. Comment
  UC2028401  Luzula comosa Barbara Ertter with Dan Norris 1998-6-18 16225 Contra Costa Lower Devil's Slide trail falong W Fork Sycamore Creek (Madrone Canyon), south side of Mount Diablo, along path in woods Comment
  JEPS100046  Luzula macrantha G. Smick 2003-4-8 GAS 130 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site Comment
  JEPS25121  Luzula macrantha G. Thomas Robbins 1959-4-18 3987 Contra Costa Overlooking San Pablo Bay about 1/2 mi east of Pt. San Pablo, Richmond 7 Comment
  JEPS120275  Lychnis coronaria Barbara Ertter 2012-10-27 21293 Contra Costa entrance gate to Golf Course Trail in Tilden Regional Park 370 Comment
  UC2028023  Madia elegans Barbara Ertter 1997-9-14 15811 Contra Costa Southwest side of Mount Diablo, Secret Trail at head of Pine Canyon. Comment
  CAS-BOT-BC344324  Madia exigua Joseph Andorfer Ewan 1936-5-24 9693 Contra Costa West slope Bald Peak, San Pablo Ridge Comment
  JEPS111759  Madia exigua D. G. Kelch 2005-5-13 05 .257 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Area along Vista Road ~ 2.5 kiloms West of Martinez 45 Comment
  UC691549  Madia exigua Mary L. Bowerman 1932-4-27 1400 Contra Costa canyon w Riggs Canyon (s face Oyster Ridge); Mount Diablo 350 Comment
  UC1819036  Madia exigua Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14246 Contra Costa South side Mount Diablo, Sloan Road between Curry Point and Curry Canyon, roadside in partial shade of oak forest on north-facing slope. 487 Comment
  CAS-BOT-BC342984  Madia gracilis Mary L. Bowerman 1933-6-3 2241 Contra Costa Mount Diablo. Ransom Point Ridge Comment
  CDA28835  Madia gracilis D. G. Kelch, Jessica Kolman 2009-5-29 9 .314 Contra Costa Carquinez Strait; Pinole Valley Park, near ridgetop. Comment
  UC89534  Madia radiata M. K. Curran May 1889 Contra Costa Antioch Comment
  SEINET11601587 Image available Madia radiata K. Brandegee 1908-4-9 50 Contra Costa Near Antioch Comment
  CAS-BOT-BC343584  Madia sativa Keck 1933-11-2 2614 Contra Costa 1 mile W. of Avon Comment
  CAS-BOT-BC204098  Malacothamnus hallii John Thomas Howell; T. H. Kearney 1950-7-5 26634 Contra Costa Mt. Diablo 259 Comment
  UC1280806  Malacothamnus hallii H. E. McMinn and E. Maino 1931-4-11 123 Contra Costa Mount Diablo Comment
  UC692676  Malacothamnus hallii Mary L. Bowerman 1933-6-3 2223 Contra Costa 2 mi by road from North Gate; Mount Diablo Comment
  UC692693  Malacothamnus hallii Mary L. Bowerman 1932-9-24 1590 Contra Costa Ridge running w from Twin Peak; Mount Diablo 335 Comment
  UC691434  Malacothrix clevelandii Mary L. Bowerman 1932-5-6 1415 Contra Costa floor Mitchell Canyon (Mount Diablo); , Mitchell Canyon Floor 213 Comment
  UC133354  Malacothrix floccifera C. F. Baker 1903-4-28 2948 Contra Costa Marsh Creek Mount Diablo Comment
  UC1613944  Malacothrix floccifera Charles M. Belshaw 1935-6-24 1024 Contra Costa Sobrante Hills Comment
  UC1795010  Malacothrix floccifera R. K. Brummitt, J. Strother and B. Baldwin 1997-5-27 19608 Contra Costa Mount Diablo, W side, Murchio Gap 800 Comment
  UC691447  Malacothrix floccifera Mary L. Bowerman 1933-4-25 1908 Contra Costa ridge ese North Peak; Mount Diablo Comment
  CHSC33984  Malva nicaeensis Willis Ball 1975-4-19 525 Contra Costa Contra Loma Regional Park. In area #1 ca. 40 yds sw of restroom facility at s end of reservoir. In picnic area. 36 Comment
  JEPS111542  Malva pseudolavatera D. G. Kelch 2003-3-28 03 .83 Contra Costa Rodeo - Lone Tree Point 2 Comment
  CAS-BOT-BC5566  Malvastrum hallii Adolph Daniel Edward Elmer 1903-5-1 4395 Contra Costa Mount Diablo Comment
  RSA0004204  Malvastrum hallii H. M. Hall, F. M. Essig 1916-5-30 10131 Contra Costa Mt. Diablo, westerly side north of Pine Canon. 275 Comment
  JEPS111541  Malvella leprosa A. G. Murdock 2004-6-4 315 Contra Costa Martinez - Along creek at Martinez train station 2 Comment
  JEPS111874  Marah fabacea D. G. Kelch 2003-3-21 03 .40 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  UC1122829  Marah fabacea R. W. Lundh 1933-3-15 214 Contra Costa Vaca Canyon Concord Quadrangle Comment
  UC1948944  Marah fabacea William J. Ferlatte, L. Maynard Moe 1970-4-27 1230 Contra Costa San Francisco Bay: Red Rock Island Comment
  CHSC46931  Marah oregana Robert A. Schlising 1962-7-7 2331 Contra Costa Along Pinehurst Road. Comment
  JEPS63279  Marrubium vulgare L. Tinsley Sept. 1925 38 Contra Costa Mt. Diablo Comment
  UC691462  Marrubium vulgare Mary L. Bowerman 1930-6-26 376 Contra Costa junction of Riggs Canyon Rd and Livermore Rd Mount Diablo Comment
  JEPS127047  Matricaria discoidea Lowell Ahart, Josephine Guardino 2016-4-19 20766 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
  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
  CAS-BOT-BC348050  Matricaria discoidea Katharine Brandegee No date on label s.n. Contra Costa Byron Spring Comment
  UC1103019  Meconella californica J. P. Tracy 1903-4-18 1796 Contra Costa East slope beyond Bald Peak, Berkeley Hills 304 Comment
Read comments May 24 2011
  JEPS100115  Medicago arabica G. Smick 2003-5-8 GAS 180 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS75470  Medicago polymorpha P. F. Yorks 1975-5-15 395 -2 Contra Costa on Hampton Rd ca 1.5 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Preserve Comment
  CAS-BOT-BC271224  Melica californica Mary L. Bowerman 1935-4-22 2883 Contra Costa Ridge west of Pioneer Road west of Stage Road, Mount Diablo 853 Comment
  SD218256  Melica californica William J. Ferlatte, L. Maynard Moe 1970-4-27 1260 Contra Costa San Francisco Bay, Red Rock Island, near summit. Comment
  UC1055813  Melica californica Frank W. Gould 1941-4-20 1282 Contra Costa near Richmond Comment
  UC771209  Melica californica W. S. Boyle 1942-4-10 1062 Contra Costa Ferry Point; overlooking San Francisco Bay Comment
  UCD87144  Melica californica P. B. Kennedy 1916-5-1 s.n. Contra Costa Pinehurst. Comment
  CAS-BOT-BC281434  Melica imperfecta Virginia E. Long 1933-6-14 221 a Contra Costa Mt Diablo. On slope SE-E along first W fork from Curry Creek trail 335 Comment
  UC691221  Melica imperfecta Mary L. Bowerman 1932-3-12 1120 Contra Costa Alamo Canyon Mount Diablo (near trail) 365 Comment
  UC692464  Melica imperfecta Mary L. Bowerman 1931-4-18 714 Contra Costa Sycamore Canyon; Mount Diablo 335 Comment
  CAS-BOT-BC262510  Melica torreyana Mary L. Bowerman 1935-5-25 3071 Contra Costa Mount Diablo. Meridian Peak south of the summit (east of the hairpin turn on road) 1066 Comment
  UC1948967  Melica torreyana William J. Ferlatte, L. Maynard Moe 1970-4-27 1249 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC692470  Melica torreyana Mary L. Bowerman 1935-5-16 3013 Contra Costa e side North Peak, Mount Diablo (behind Gabriel-Hinks'); Mount Diablo 289 Comment
  POM300622  Melica torreyana Mary L. Bowerman 1935-5-16 3013 Contra Costa Behind Gabriel-Hinks' (east side of North Peak) 290 Comment
  UC692280  Melilotus indicus Mary L. Bowerman 1931-4-4 637 Contra Costa 2 mi by road from west entrance (= North Gate); Mount Diablo Comment
  UC108375  Mentzelia affinis Michener and Bioletti 1892-4-10 Contra Costa Byron Comment
  UC1949288  Mentzelia affinis Barbara Ertter 1991-5-5 9773 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, S side of Rose Hill above Nortonville Pass Comment
  JEPS99553  Mentzelia dispersa Mary L. Bowerman 1978-5-26 Contra Costa Mount Diablo. Between lower summit parking lot and road. Comment
  RSA720796  Mentzelia dispersa Mary L. Bowerman 1978-6-3 s.n. Contra Costa Mount Diablo. Between lower summit parking lot and road. Comment
  UC1818941  Mentzelia dispersa Barbara Ertter, Mary Bowerman 1994-6-19 12849 a Contra Costa Mt. Diablo State Park east of Walnut Creek; lower Summit Parking Lot, roadside. Comment
  RSA296862  Mentzelia micrantha W. L. Jepson 1919-6-8 83314 Contra Costa Mt. Diablo Comment
  SEINET200754  Microcala quadrangularis J. P Tracy 1900-3-24 608 Contra Costa Near Stege 3 Comment
  CDA33418  Micropus californicus D. G. Kelch 2011-5-28 11 .542 Contra Costa Carquinez Strait Region.; W of Martinez. N of end of Hillside Pl. Comment
  JEPS111701  Micropus californicus var. californicus D. G. Kelch 2004-4-25 04 .125 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Hill Southwest of large cottonwood. West of Martinez at gated end of Scenic Dr 50 Comment
  JEPS40631  Micropus californicus var. californicus W. L. Jepson 1922-5-23 9664 Contra Costa Mt. Diablo Comment
  RSA721204  Micropus californicus var. californicus Barbara Ertter, Mary Bowerman, et al. 1995-5-7 14050 Contra Costa Three-Springs Trail on NE side of Mt. Diablo SE of Clayton 305 Comment
  CAS-BOT-BC348648  Micropus californicus var. subvestitus Brandegee No date on label s.n. Contra Costa Antioch Comment
  CAS-BOT-BC348789  Microseris campestris Peter H. Raven; H. L. Mason; R. Ornduff; et al 1957-4-4 10581 Contra Costa Flats 3.0 miles s. of Byron Comment
  UC691459  Microseris douglasii subsp. douglasii Mary L. Bowerman 1931-4-4 638 Contra Costa 2 mi by road from North Gate (west entrance); Mount Diablo Comment
  UC2027852  Microseris douglasii subsp. douglasii Barbara Ertter with Stu Garrett 1997-3-29 15527 a Contra Costa West side Mount Diablo, Burma Road on Long Ridge Comment
  CAS-BOT-BC349093  Microseris douglasii subsp. tenella Mary L. Bowerman 1933-4-15 1847 Contra Costa Mount Diablo. Canyon south of Arroyo del Cerro Comment
  JEPS35603  Microseris douglasii subsp. tenella R. F. Hoover 1939-4-25 4062 Contra Costa Richmond hills Richmond Comment
  UC768670  Microseris douglasii subsp. tenella Robert F. Hoover 1939-4-25 4062 Contra Costa Richmond Hills Comment
  CAS-BOT-BC7493  Microseris parvula M. K. Curran s.n. Contra Costa Antioch Comment
  JEPS11549  Mimulus grandis W. L. Jepson 1922-5-15 9640 Contra Costa North Berkeley Hills 182 Comment
  UC1613940  Mimulus grandis Charles M. Belshaw 1935-6-24 1019 Contra Costa Sobrante Hills Comment
  POM261437  Mimulus guttatus J. T. Howell 1940-4-21 15402 Contra Costa Pine Canyon, Mount Diablo Comment
  UC103726  Mimulus latidens M. K. Curran May 1886 Contra Costa Antioch Comment
  UC193602  Mimulus latidens M. K. Curran May 1886 Contra Costa Antioch Comment
  UC27033  Mimulus latidens J. Burtt Davy 1895-4-7 933 Contra Costa Antioch 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
  CAS-BOT-BC388585  Minuartia douglasii L. R. Abrams 1921-5-25 8026 Contra Costa Summit, Mt Diablo Comment
  UC1125779  Minuartia douglasii C. M. Belshaw 1936-5-8 2062 Contra Costa Mt. Diablo Mt. Diablo Quadrangle (se slope, Plot 5) Comment
  UC692296  Minuartia douglasii Mary L. Bowerman 1935-4-22 2889 Contra Costa ridge w Pioneer Road (west of Old Stage Road); Mount Diablo Comment
  RSA59589  Minuartia douglasii Verne Grant, Alva Grant 1950-5-13 8897 Contra Costa Saddle between N & Meridian peaks, Mt. Diablo. Comment
  UC2027714  Minuartia douglasii Barbara Ertter with Stu Garrett 1997-3-29 15525 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  UCD102392  Moehringia macrophylla Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Bald Ridge Trail. Bald Ridge. 890 Comment
  UC1076314  Monolepis nuttalliana Herbert L. Mason 1931-4-5 5891 Contra Costa Antioch sandhills Comment
  UC691682  Monolopia gracilens Mary L. Bowerman 1931-4-25 767 Contra Costa roadside a little below summit Meridian Peak; Mount Diablo Comment
  UC903116  Monolopia lanceolata Donald Nelson 1941-3-23 Contra Costa e of Byron Comment
  CAS-BOT-BC349614  Monolopia major Alice Eastwood 1914-3-14 3803 Contra Costa Byron Springs Comment
  JEPS111667  Monolopia major C. Thayer, J. Dunne 1997-3-27 Contra Costa 91 Comment
  JEPS68951  Monolopia major Edward Lee 1935-3-10 1280 Contra Costa Donovan Road West watershed of Kirker Creek, Kirker Pass (se-facing hillside) Comment
  UC50097  Monolopia major H. P. Chandler 1900-3-23 582 Contra Costa Briones Valley Mount Diablo Region Comment
Read comments Feb 9 2019
  UC618925  Monolopia major R. F. Hoover 1935-3-10 311 Contra Costa Kirker Pass Comment
  UC629756  Monolopia major Ethel Crum 1936-4-6 1741 Contra Costa 2 mi w Byron 45 Comment
  UCD134571  Monolopia major Mrs. Saunders 1925-3-21 s.n. Contra Costa near Byron. Comment
  UC1607685  Montia fontana Barbara Ertter, Lynne Hosley 1993-4-17 11511 Contra Costa Morgan Territory 10 air mi n of Livermore (in lee of Mount Diablo, s of Hummingbird trail,); Morgan Territory 609 Comment
  CAS-BOT-BC445038  Montia linearis John Thomas Howell 1933-5-14 11226 Contra Costa St. Mary's College Comment
  UC1198226  Muilla maritima J. P. Tracy 1900-3-24 607 Contra Costa near Point Richmond; Region about San Francisco Bay 3 Comment
  POM169570  Muilla maritima H. P. Chandler 1901-3-21 863 Contra Costa Concord. Comment
  CDA15240  Myoporum laetum G. F. Hrusa, D. Crowe 1998-5-8 14371 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  UC2028284  Myoporum laetum Barbara Ertter 1998-6-20 16240 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, along path just outside Wiget Lane entrance. Comment
  JEPS65189  Myosurus L. R. Heckard 1971-4-15 2478 Contra Costa at intersection of Holey Road, s of Byron Comment
  CAS-BOT-BC83288  Myosurus minimus Herbert L. Mason 1952-4-14 14263 Contra Costa 3.5 miles south of Byron. Comment
  CAS-BOT-BC83293  Myosurus minimus Herbert L. Mason 1952-4-26 14269 Contra Costa 3.5 miles south of Byron. Comment
  UC1101327  Myosurus minimus Herbert L. Mason 1952-4-14 14262 a Contra Costa 3.5 mi s of Byron Comment
  UC1738102  Myosurus minimus D. E. Stone 1957-4-4 70 B Contra Costa 1 mi S of Byron ( on State 4) Comment
  UCD96579  Myosurus minimus Roman Gankin 1958-3-8 s.n. Contra Costa ca. 3 miles south of Byron. Comment
  UC1738118  Myosurus minimus subsp. apus D. E. Stone 1955-8-29 8 -8 Contra Costa 3 mi S of Byron (on the road to Herdlyn) Comment
  CAS-BOT-BC7110  Myosurus minimus var. sessiliflorus M. K. Curran 1884-1-1 s.n. Contra Costa Antioch Comment
  JEPS17886  Myosurus sessilis Rimo Bacigalupi with G. T. Robbins 1956-3-26 5532 Contra Costa about 2 1/2 mi s Byron (just s of S.P.R.R. crossing on rd. to Bethany, near head of Italian Slough) 6 Comment
  UC1101331  Myosurus sessilis Herbert L. Mason 1952-4-26 14269 Contra Costa 3.5 mi s of Byron Comment
  UC1101359  Myosurus sessilis Herbert L. Mason 1952-3-13 14200 Contra Costa 3.3 mi s Bryon Comment
  POM312427  Myosurus sessilis H. L. Mason 1952-4-26 14269 Contra Costa Vernal Pool, 3.5 miles S of Byron Comment
  UCD96287  Myosurus sessilis H. L. Mason 1952-4-14 14264 Contra Costa 3.5 miles south of Byron. Comment
  UC1777714  Myriophyllum sibiricum M. R. Bell 1950-10-9 Contra Costa near Concord (from stock pond on farm of E. J. Mangini) Comment
  SD211501  Najas guadalupensis Barbara Ertter, Brad Olson 1991-9-28 10838 Contra Costa San Pable Reservoir between Orinda and El Sobrante, in shallow water at Sout end of reservoir 91 Comment
  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
  CAS-BOT-BC260126  Nassella pulchra A. A. Beetle 1941-3-28 1718 Contra Costa Orinda Comment
  CAS-BOT-BC260127  Nassella pulchra A. A. Beetle 1941-3-28 1718 Contra Costa Orinda Comment
  SEINET191122  Nassella pulchra A. A. Beetle 1941-3-28 1718 Contra Costa Near Orinda. Comment
  UCD36922  Nassella pulchra Beecher Crampton 1956-5-14 3403 Contra Costa Southeastern Mount Diablo, headwaters of Marsh Creek. 640 Comment
  UCD87436  Nassella pulchra A. A. Beetle 1941-3-29 1718 Contra Costa Orinda. Comment
  UCD87465  Nassella pulchra Beecher Crampton 1956-5-14 3403 Contra Costa Southeastern Mount Diablo, headwaters of Marsh Creek. 640 Comment
  SEINET4673863  Navarretia gowenii David Gowen 2004-6-13 102 Contra Costa Lime Ridge Open Space. Northwest end.; 0 183 Comment
  JEPS103663  Navarretia hamata subsp. parviloba David Gowen 2003-6-14 Contra Costa Lime Ridge Open Space, on fire road below transmission tower 274 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
  SEINET196200  Navarretia mellita Herbert L. Mason 1945-6-12 Contra Costa Ridge SE fo Mount.Diablo near summit of road up Marsh Creek. Comment
  UC691612  Navarretia pubescens Mary L. Bowerman 1930-6-10 298 Contra Costa Oak Knoll Picnic Grounds Mount Diablo Comment
  JEPS112005  Navarretia squarrosa D. G. Kelch 2005-5-1 05 .191 Contra Costa Crockett - Edwards Canyon 150 Comment
  JEPS75501  Navarretia squarrosa P. F. Yorks 1975-6-29 462 Contra Costa ca 2 km s Bear Creek Road (on Hampton Road, n of Briones Reservoir); Hampton Road Natural Reserve 200 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
  UCD36029  Navarretia squarrosa Beecher Crampton 1949-7-10 476 Contra Costa Contra Cost County, along road in pass through Sobrante Ridge, road from valley of San Pablo to Martinez and Pinole, above Sheldon School. 106 Comment
  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
  JEPS3210  Nemophila heterophylla L. Constance, J. L. Morrison 1938-5-5 2190 Contra Costa above Deer Flat (near head of Mitchell Canyon, nw slope of Mount Diablo); nw slope Mount Diablo, nr head Mitchell Canyon 670 Comment
  JEPS3220  Nemophila heterophylla W. L. Jepson 1923-4-22 9868 Contra Costa Mt. Diablo Vicinity of San Francisco Bay, Mt. Diablo Comment
  SBBG29926  Nemophila heterophylla J. T. Howell 1933-5-14 12218 Contra Costa E of St. Mary's College Comment
  UC1069152  Nemophila heterophylla R. C. Wilson 1935-3-27 145 Contra Costa 1/2 mi s Cave Pt.; Mt. Diablo Quad., s of Cave Pt. Comment
  UC1301148  Nemophila heterophylla Helen K. Sharsmith 1963-3-3 5188 Contra Costa e St. Mary's College (near Moraga, Las Trampas Canyon); San Francisco Bay Region, Las Trampas Cyn, nr Moraga 259 Comment
  UC146146  Nemophila heterophylla Joseph P. Tracy 1903-4-18 1797 Contra Costa e slope of Bald Peak San Francisco Bay Region, , Bald Peak (Berkeley Hills) 304 Comment
  UC592192  Nemophila heterophylla H. L. Mason 1929-3-15 5052 Contra Costa Nortonville; on grassy hillslopes Comment
  UC606926  Nemophila heterophylla L. Constance, J. L. Morrison 1938-5-5 2190 Contra Costa above Deer Flat (near head of Mitchell Canyon, nw slope of Mount Diablo); nw slope Mount Diablo, nr head Mitchell Canyon 670 Comment
  UC67128  Nemophila heterophylla Harley P. Chandler 1900-3-23 580 Contra Costa Briones Valley , Briones Valley (Region of San Francisco Bay) Comment
  JEPS25353  Nemophila menziesii Rimo Bacigalupi with Paul C. Hutchinson and John Weiler 1959-3-19 6963 Contra Costa 2.4 mi w Byron (s-facing low hill along Camino Diablo, 0.3 mi e of junction with Vasco Road); along Camino Diablo, w of Byron 60 Comment
  UCD102389  Nemophila menziesii var. menziesii Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. North Peak Road to North Peak. 890 Comment
  RSA421347  Nemophila menziesii var. menziesii Mark Morris 1929-2-22 s.n. Contra Costa Mt. Diablo. Comment
  POM181437  Nicotiana glauca I. L. Wiggins 1930-4-18 4604 Contra Costa East end of Jersey Island. Comment
  JEPS105740  Nicotiana quadrivalvis David Gowen 2004-6-18 124 Contra Costa Lime Ridge Open Space. East of golf course and large quarry area, and just north of Manzanita Trail. 650 ft. elev. Comment
  CAS-BOT-BC140360  Oemleria cerasiformis Alice Eastwood 1915-5-30 4459 Contra Costa Mt. Diablo Comment
  UC1819057  Oemleria cerasiformis Barbara Ertter, Dale Sanders, Dan Norris 1994-3-26 12334 Contra Costa Peyton Hill east of I-680 east of Martinez, south of Waterfront Road 30 Comment
  UC691106  Oemleria cerasiformis Mary L. Bowerman 1935-3-16 2734 Contra Costa Peach Tree Springs Rd. Mount Diablo (e fork of canyon) 228 Comment
  SBBG39495  Oemleria cerasiformis L. S. Rose 1970-3-2 70011 Contra Costa 2 mi NW of Canyon 213 Comment
  UC169387  Oenothera deltoides subsp. cognata K. Brandegee 1892-5 Contra Costa Antioch Comment
Read comments Sep 29 2008
  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
  RSA34666  Oenothera deltoides subsp. howellii P. A. Munz 1947-10-8 12201 Contra Costa Sand dunes east of Antioch 8 Comment
  UC635385  Oenothera deltoides subsp. howellii H. L. Mason 1929-3-31 5163 Contra Costa Antioch San Joaquin River (sand dike along river) Comment
  UC27891  Orobanche bulbosa F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  UC444919  Orobanche californica subsp. feudgei T. S. Brandegee June 1884 Contra Costa Antioch. Comment
  UC1586123  Orobanche fasciculata Barbara Ertter with Elizabeth Neese 1988-4-24 7451 Contra Costa Black Diamond Mines Regional Preserve SW of Antioch, above powerline road E of Nortonville Road. Comment
  UC1076313  Orobanche uniflora subsp. occidentalis Herbert L. Mason 1931-4-5 5828 Contra Costa Road between Marsh Creek and Livermore. Comment
  UC27898  Orobanche uniflora subsp. occidentalis J. Burtt Davy 1895-4-13 1004 Contra Costa Lafayette. Comment
  CAS-BOT-BC500251  Orobanche uniflora subsp. occidentalis John Thomas Howell 1940-4-21 15401 Contra Costa Pine Canyon, Mt. Diablo Comment
  JEPS21355  Orobanche vallicola Ray F. Smith 1956-9-23 Contra Costa n. base Mt. Diablo (Russellmann Park); , Russellmann Park Comment
  CAS-BOT-BC502954  Orobanche vallicola A. D. E. Elmer 1903-7-1 4958 Contra Costa Mount Diablo Comment
  CAS-BOT-BC238373  Orthocarpus James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  CHSC22522  Orthocarpus Robert A. Schlising 1962-4-7 2139 Contra Costa California Coast Ranges. Field along Deer Valley Road, few mi S of Antioch. Comment
  RSA29779  Orthocarpus erianthus Joseph A. Ewan 1934-4-8 8762 Contra Costa Head of Hog Canyon, S slope Mt Diablo. 640 Comment
  POM15657  Orthocarpus purpurascens C. F. Baker 1903-4-27 2794 Contra Costa Byron. Comment
  RSA0029056  Panicum capillare Barbara Ertter, Mary L. Bowerman, Lisa Schultheis 1998-8-21 16396 Contra Costa South side of Mount Diablo, South Gate Road 1.1 mi below entry kiosk. 366 Comment
  CAS-BOT-BC253783  Panicum hillmanii Walter Knight 1977-7-10 s.n. Contra Costa East Bay Regional Park District. Along Lafayette-Moraga Regional Trail. Intersection of Foye Street, Lafayette Comment
  CHSC84570  Parapholis incurva John Dittes 2003-5-6 2003 -15 Contra Costa San Joaquin Valley; approximately 10.0 air-miles north of Livermore, 0.4 air-miles north of Vasco Road; Los Vaqueros Reservoir Watershed. 65 Comment
  JEPS101188  Parapholis incurva Dean W. Taylor 1990-4-10 10618 Contra Costa Byron Hot Springs Road, 1 mile S of Holey Road 24 Comment
  SBBG115829  Parapholis incurva K. Brandegee 1918-5-8 Contra Costa Byron Hot Springs Comment
  SEINET4344382 Image available Parapholis incurva Barbara Ertter, Brad Olson 1994-5-7 12764 Contra Costa S. end Pt. Molate Beach Park W. of Richmond N. of San Rafael Bridge, edge of San Fransisco Bay Comment
  CDA22267  Parietaria judaica D. G. Kelch, A. G. Murdock 2005-5-23 5 .372 Contra Costa Carquinez Strait Region; Crockett - Crolona Heights. 6th Street at Lillian Street, Crockett. 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
  CAS-BOT-BC259649  Paspalum dilatatum Virginia I. Dains; Walter Knight 1986-8-8 5498 Contra Costa Contra Costa - San Joaquin Delta Area. Jct Rock S1 and Werner Cut, above high water mark on east facing levee Comment
  RSA118092  Paspalum dilatatum J. T. Howell 1954-9-5 30025 Contra Costa Along road, Marsh Creek Springs Park Comment
  UCD88747  Paspalum dilatatum Helen K. Sharsmith 1963-6-1 s.n. Contra Costa Berkeley Hills, Tilden Park Golf Course. Comment
  UC2028559  Paspalum distichum Barbara Ertter with Chris Thayer 1996-10-25 15366 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothill Regional Park. Comment
  SEINET12728273  Pectocarya linearis T. S. Brandegee 1890-1 s.n. Contra Costa Antioch California. Comment
  POM286383  Pedicularis densiflora Lyman Benson 1931-3-18 2662 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  UC886639  Pedicularis densiflora Alice Eastwood 1922-3-17 11084 Contra Costa Mount Diablo Comment
  UCSB12518  Pedicularis densiflora Grah, Nancy 1962-4-14 Contra Costa 1.1 miles on Tappan Lane north of Tarry Lane, Orinda 243 Comment
  RSA123948  Pedicularis densiflora E. F. Sprague 1957-4-11 1124 Contra Costa Mount Diablo. N slope of Live Oak Canyon. 610 Comment
  RSA124117  Pedicularis densiflora E. F. Sprague 1956-4-5 1096 Contra Costa Rocky Point, Mt. Diablo. 610 Comment
  POM161363  Pediomelum californicum Rimo Bacigalupi 1926-4-30 1348 Contra Costa Summit of Mt Diablo. Comment
  CDA42756  Pellaea andromedifolia A. G. Murdock 2003-2-21 68 Contra Costa Carquinez Strait Region; Martinez; west border of Mt. Wanda property. Comment
  CAS-BOT-BC71204  Pellaea andromedifolia D. E. Breedlove 1970-4-18 17431 Contra Costa the north edge of Lafayette above Laurel Drive 243 Comment
  RSA686787  Pellaea andromedifolia H. de Forest 1930-4-6 s.n. Contra Costa SE of Mortonville. 274 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
  POM14647  Penstemon centranthifolius C. F. Baker 1903-4-25 2938 Contra Costa Antioch. Comment
  UC2070585  Penstemon centranthifolius Barbara Ertter with Steve Matson 2003-3-15 18104 Contra Costa Black Diamond Mines Regional Preserve, SW side of Rose Hill. Comment
  UC1050060  Penstemon cordifolius N. Floy Bracelin 1941-7-13 1491 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  RSA407924  Penstemon heterophyllus subsp. purdyi Cora Mae Life 1923-7-4 92 Contra Costa Mt Diablo. Comment
  POM14652  Penstemon heterophyllus subsp. purdyi C. F. Baker 1903-4-28 2872 Contra Costa Marsh Creek, Mt. Diablo. Comment
  UC1050858  Penstemon heterophyllus var. purdyi N. Floy Bracelin 1941-5-18 1319 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS107104  Pentachaeta alsinoides Barbara Ertter, Lisa Schultheis 1995-4-27 14006 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; northwest side of open grassy ridge at end of Arbolado Dr. 121 Comment
  JEPS116790  Pentachaeta alsinoides David Gowen 2006-6-14 610 Contra Costa Morgan Territory Regional Park; At the NW end of Eagle Trail. Comment
  JEPS116801  Pentachaeta alsinoides David Gowen, Barbara Ertter 2006-6-6 598 Contra Costa Near Upper San Leandro Reservoir at the NE end, on dirt road/trail (Rocky Ridge Trail?). Comment
  SD241767  Pentachaeta alsinoides Barbara Ertter, Lisa Schultheis 1995-4-27 14006 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; northwest side of open grassy ridge at end of Arbolado Dr. 121 Comment
  CHSC21633  Pentagramma triangularis Willis Ball 1975-3-9 490 Contra Costa In area #8. Ca. 560 yds sw of main parking lot ca. 800 yds w of Contra Loma Blvd. 137 Comment
  SEINET12315987  Pentagramma triangularis M. T. Doutt 1930-1 98 Contra Costa Marsh Creek Comment
  CDA38511  Perideridia kelloggii D. G. Kelch 2004-7-9 4 .296 Contra Costa Carquinez Strait Region; Crockett - Carquinez Scenic Drive. East of Crockett West of Bull Valley SA. Comment
  UC692566  Perideridia kelloggii Mary L. Bowerman 1935-6-28 3158 Contra Costa w meridian (flat on n side); Mount Diablo, Inner Black Hills 472 Comment
  JEPS45555  Phacelia breweri A. R. Kruckeberg 1949-4-16 1739 Contra Costa Deer Flat trail ca 1/8 mi from Juniper Camp; Mount Diablo Comment
  UC691689  Phacelia breweri Mary L. Bowerman 1935-4-26 2898 Contra Costa w Indian Ceremonial Spring; Mount Diablo 1021 Comment
  UC880994  Phacelia breweri H. M. Evans 1921-4-30 Contra Costa Mt. Diablo Comment
  UC2028001  Phacelia breweri Barbara Ertter with Tony Morosco 1998-4-12 16018 Contra Costa Mount Olympia on north side of Mount Diablo, around rocks at summit. Comment
  JEPS25156  Phacelia californica G. Thomas Robbins with John Weiler 1959-5-23 4027 Contra Costa flats on w side San Francisco Bay, Richmond, Brooks Island Comment
  UC1618347  Phacelia californica Barbara Ertter, Chris Thayer 1993-5-7 11708 Contra Costa ca. 0.5 mi. n. Vollmer (=Bald) Peak (in EBMUD land e. of Tilden Park, just below ridge) 457 Comment
  UC762065  Phacelia californica R. F. Hoover 1938-2-21 2753 Contra Costa Point Richmond Comment
  POM204460  Phacelia ciliata J. T. Howell 1933-3-29 10915 Contra Costa Near Pittsburg. Comment
  RSA755524  Phacelia ciliata Barbara Ertter 1992-3-8 10910 Contra Costa NE edge of Black Diamond Mines Regional Preserve, NE-heading canyon with steep loose sides ca. 1/2 mile west of junction of Stewartville Trail and Frederickson Lane. Comment
  UC24322  Phacelia ciliata var. ciliata J. Burtt Davy 1895-4-7 958 Contra Costa Antioch Comment
  UC672410  Phacelia ciliata var. ciliata Herbert L. Mason 1929-3-31 5139 Contra Costa Briones Road Hills northeast of Mount Diablo Comment
  UCD102384  Phacelia distans Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 960 Comment
  UCD120388  Phacelia distans Robt. Branstead 1934-3-30 s.n. Contra Costa SW slope of Mt. Diablo. 426 Comment
  UC24352  Phacelia divaricata Brewer 1862-5-7 1057 Contra Costa Mt. Diablo Comment
Read comments Sep 7 2009
  UC35545  Phacelia divaricata F. P. McLean 1800-1 Contra Costa Mt. Diablo Comment
  UC691703  Phacelia divaricata Mary L. Bowerman 1935-4-26 2897 Contra Costa w Indian Ceremonial Spring (hillside); Mount Diablo 1021 Comment
  UC2027999  Phacelia divaricata Barbara Ertter with Tony Morosco 1998-4-12 16020 Contra Costa Mount Olympia on north side of Mount Diablo, Olympia Road down ridge west of summit. Comment
  UC672340  Phacelia douglasii Herbert L. Mason 1929-3-31 5161 Contra Costa dunes along river near Antioch; San Joaquin River Comment
  JEPS111837  Phacelia imbricata subsp. imbricata A. G. Murdock 2004-5-28 275 Contra Costa Pinole Peak 405 Comment
  JEPS75508  Phacelia imbricata subsp. imbricata P. F. Yorks 1975-5-31 427 Contra Costa on Hampton Rd ca 1.6 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Preserve 180 Comment
  UCSC000586  Phacelia magellanica R. F. Hoover 1938-3-8 2821 Contra Costa Berkeley Country Club Comment
  POM300966  Phacelia nemoralis subsp. nemoralis Mary L. Bowerman 1934-4-21 2537 Contra Costa Muir Area. Comment
  CAS-BOT-BC154332  Phacelia phacelioides Alice Eastwood 1915-5-30 4520 Contra Costa Near type locality. Mt. Diablo Comment
  UC691330  Phacelia phacelioides Mary L. Bowerman 1933-5-2 1950 Contra Costa below Pioneer Camp; Mount Diablo 762 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
  SEINET3158353  Phacelia tanacetifolia L. S. Rose 1933-4-17 33091 Contra Costa Antioch Comment
  JEPS99570  Phacelia tanacetifolia Mary Bowerman 1991-5-21 Contra Costa Comment
  RSA720842  Phalaris aquatica Barbara Ertter, Richard K. Rabeler 1994-6-6 12823 Contra Costa Point Isabel in south Richmond Comment
  CAS-BOT-BC265808  Phalaris arundinacea Walter Knight; Irja Knight 1978-9-5 3205 Contra Costa Browns Island Comment
  UC1101560  Phalaris arundinacea Malcolm A. Nobs 1948-9-23 683 Contra Costa 7 mi s Kingston (Rock Slough); Rock Slough Comment
Read comments Oct 8 2012
  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
  UC820506  Phalaris minor John Thomas Howell 1933-5-14 11234 Contra Costa St. Mary's College Comment
  CAS-BOT-BC265960  Phalaris minor Mary L. Bowerman 1933-4-15 1849 Contra Costa Canyon south of Arrroyo del Cerro, Mount Diablo Comment
  SEINET10593167  Phalaris minor John Thomas Howell 1933-5-14 Howell 11234 Contra Costa St. Mary's College Comment
  JEPS127665  Phalaris paradoxa Barbara Ertter with David Gowen and Michael Park 2017-5-2 22809 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  UCD89404  Phalaris paradoxa P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UC2028531  Phalaris paradoxa Barbara Ertter 1998-5-3 16030 Contra Costa Macedo Ranch at southwest base of Mount Diablo. Comment
  UC52449  Phlox gracilis H. M. Hall 1901-3-22 1685 Contra Costa Port Costa San Francisco Bay Region 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
  CAS-BOT-BC222492  Pholistoma auritum var. auritum Mary L. Bowerman 1931-4-18 722 Contra Costa Mount Diablo. Sycamore Canyon 365 Comment
  UC1078910  Phoradendron macrophyllum Job Kuijt 1957-11-3 1439 Contra Costa 3 mi. s. of Wildcat Picnic area turn-off Mt. Diablo 548 Comment
  UC1795770  Phoradendron macrophyllum Barbara Ertter, Brad Olson, Diane Lake, Seth Adams, et al. 1994-9-11 13085 Contra Costa Chaparral Springs addition to Mt. Diablo State Park, north side of Marsh Creek Road at high point southeast of Clayton, open oak woodland (Canyon live oak, blue oak, buckeye); north facing slope with local grove of Fraxinus, Aesculus, toyon. Comment
  CAS-BOT-BC141123  Phoradendron serotinum subsp. macrophyllum Mary L. Bowerman 1931-2-22 520 Contra Costa Mount Diablo. Sycamore Canyon, head of E fork Comment
  JEPS111927  Phoradendron serotinum subsp. tomentosum Dean G. Kelch and Andrew G. Murdock DGK 05 .035 Contra Costa Martinez - Franklin Hills. Carq. Shoreline EBRP. Contra Costa County CA. West of Martinez High School. Comment
  JEPS87901  Phoradendron villosum Barbara Ertter, Lynne Hosley 1992-8-29 11264 Contra Costa e Mt. Diablo (Morgan Territory Regional Preserve, along Condor Trail); Morgan Territory Regional Preserve Comment
  CAS-BOT-BC260891  Phragmites australis J. W. Congdon 1893-7-29 s.n. Contra Costa Martinez Comment
  CDA8371  Phragmites australis D. G. Kelch, A. G. Murdock 2003-8-13 3 .101 Contra Costa Carquinez Strait; Salt Marsh E of Marina. Martinez. Comment
Read comments Mar 11 2011
  UC311108  Pickeringia montana var. montana A. D. E. Elmer May, 1903 4315 Contra Costa Mount Diablo Comment
  CDA15276  Picris echioides G. F. Hrusa, D. Crowe, R. York 1998-7-17 14713 Contra Costa Sacramento Delta; E end of Dow Chemical property. Pittsburg. Comment
  CAS-BOT-BC76965  Pilularia americana Lewis S. Rose 1940-4-30 40259 Contra Costa 4 mi. S of Antioch 30 Comment
  UC1077124  Pilularia americana Herbert L. Mason 1932-3-20 6851 Contra Costa Deer Valley Comment
  UC534973  Pilularia americana Katharine Brandegee 1909-4-24 Contra Costa between Antioch and Marsh Creek (Briones Rd.) Comment
  JEPS47899  Pinus attenuata W. L. Jepson 1909-9-1 Contra Costa Mortaga Ridge Comment
Read comments Aug 18 2011
  SEINET3871797  Pinus attenuata Judy Kaufman 1963-2-15 6 Contra Costa On top slopes of Flicker Ridge.; 0 107 Comment
  CAS-BOT-BC78543  Pinus coulteri J. W. Congdon 1894-10-16 s.n. Contra Costa Mt. Diablo Comment
  UC1134077  Pinus coulteri R. C. Wilson 1935-2-26 101 Contra Costa 1 mi sw Nortonville; Mt. Diablo Quadrangle Comment
  UC40359  Pinus coulteri J. G. Lemmon Contra Costa Mitchell Canyon Mt. Diablo Comment
  SEINET3872272  Pinus coulteri Stanley L. Welsh 2006-1-29 29007 Contra Costa Mount Diablo State Park. Steep slope.; 0 914 Comment
  UC1779708  Pinus halepensis Rudolf Schmid 1997-5-21 1997 -14 Contra Costa Hillside Natural Area, El Cerrito; NW of King Ct. entrance. 175 Comment
  CDA33592  Pinus radiata D. G. Kelch 2010-11-28 10 .448 Contra Costa El Sobrante. Hill above the junction of San Pablo Dam Rd and El Portal Dr (Quail Hill). Comment
  JEPS48206  Pinus sabiniana W. L. Jepson 1931-4-5 15727 Contra Costa Nortonville Comment
  UC691267  Piperia unalascensis Mary L. Bowerman 1931-5-2 789 Contra Costa n end Eagle Point ridge; Mount Diablo Comment
  UC2028436  Piptatherum miliaceum Barbara Ertter with Chris Thayer 1996-10-25 15353 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park Comment
  UC2061504  Pittosporum undulatum Dean G. Kelch 2016-5-27 16 .135 Contra Costa Miller-Knox Hill. Comment
  CAS-BOT-BC227987  Plagiobothrys David D. Keck 1933-4-2 1995 Contra Costa Vasco Road, eastern county, N of Vasco School Comment
  JEPS90184  Plagiobothrys acanthocarpus Dean W. Taylor 1992-4-16 12390 Contra Costa s of Byron Hot Springs (San Joaquin Valley); San Joaquin Valley 45 Comment
  RSA755523  Plagiobothrys acanthocarpus Barbara Ertter 1992-3-8 10912 Contra Costa Contra Loma Regional Park; vernally wet flat northeast of bend in Frederickson Lane. Comment
  JEPS111830  Plagiobothrys bracteatus D. G. Kelch 2005-4-15 05 .136 Contra Costa Rodeo Creek 100 ms west of previous site along dirt in road in puddles 100 Comment
  UC73948  Plagiobothrys bracteatus Harley P. Chandler 1901-3-22 878 Contra Costa Rodeo Canyon Comment
  POM204086  Plagiobothrys canescens L. S. Rose 1933-3-29 33046 Contra Costa Pittsburg Comment
  UC180104  Plagiobothrys fulvus Harley P. Chandler 1901-3-21 840 Contra Costa s Concord; Lime Ridge Comment
  RSA14931  Plagiobothrys fulvus var. campestris Alice Eastwood, John Thomas Howell 1935-4-7 2120 Contra Costa Near Byron on Marsh Creek Road. Comment
  CAS-BOT-BC277  Plagiobothrys humistratus M. K. Curran 1884-1-1 s.n. Contra Costa near Antioch Comment
  UC78156 Image available Plagiobothrys humistratus M. K. Curran 1884-1 Contra Costa Antioch; ; Contra Costa Co. 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
  OBI20604  Plagiobothrys stipitatus var. micranthus Robert F. Hoover 1967-4-28 10510 Contra Costa Byron Hot Springs Comment
  UC573079  Plagiobothrys stipitatus var. micranthus H. L. Mason 1929-3-31 5144 Contra Costa Briones Valley Comment
  RSA666361  Plagiobothrys stipitatus var. micranthus Barbara Ertter, J. D. Jokerst, D. Magney 1989-4-5 8126 Contra Costa SE Contra Costa: alkali sink W and adjacent to Clifton Court Forebay, ca 15 air miles SW of Stockton 0 Comment
  JEPS88008  Plagiobothrys stipitatus var. stipitatus Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8120 Contra Costa ca. 15 air mi. s.w. Stockton (w. & adjacent to Clifton Court Forebay); s.e. Contra Costa Co. Comment
  UC1301093  Plagiobothrys stipitatus var. stipitatus Helen K. Sharsmith 1963-4-7 5296 Contra Costa near Byron; San Francisco Bay Region 7 Comment
  UC78204  Plagiobothrys stipitatus var. stipitatus K. Brandegee 1889-5-1 Contra Costa Antioch Comment
  SBBG40485  Plagiobothrys tenellus W. J. Dress 1951-3-17 3059 Contra Costa Berkeley Hills, just W of Orinda Comment
  SD4240  Plagiobothrys tenellus T. S. Brandegee May 1888 Contra Costa Antioch Comment
  UC1178520  Plagiobothrys tenellus Ethel Crum 1936-4-5 1742 Contra Costa two mi w Byron; South Coast Ranges 45 Comment
  JEPS116858  Plagiobothrys tenellus David Gowen 2007-4-13 672 Contra Costa On dirt road junction (Ridge Trail) between Castle Rock Recreation Area and Borges Ranch. Comment
  CAS-BOT-BC6475  Plantago californica M. K. Curran 1883-1-1 s.n. Contra Costa Antioch Comment
  JEPS24312  Plantago elongata S. G. Smith 1957-4-28 2851 Contra Costa 1 mi s Byron Comment
  CDA42163  Plantago erecta D. G. Kelch 2004-4-11 4 .062 Contra Costa Carquinez Strait Region; Crockett ; 5th Street Prarie. Comment
  UC2042062  Plantago erecta Katie Gallagher with Nick Jensen 2014-4-26 189 Contra Costa Las Tramps Regional Wilderness. Comment
  POM300989  Plantago erecta Mary L. Bowerman 1933-4-15 1848 Contra Costa Canyon S of Arroyo del Cerro Comment
  RSA523592  Plantago lanceolata William Hirano 1958-4-28 s.n. Contra Costa Wildcat Creek Road near 'Inspiration Point', San Pablo Ridge east of Berkeley. 305 Comment
  UCD124602  Plantago lanceolata G. Thomas Robbins; S. Galen Smith 1958-6-2 3854 Contra Costa Along roadside just east of crossing of Hastings Slough on road between Port Chicago and Avon. 1 Comment
  JEPS21710  Plantago major John Thomas Howell 1955-8-24 30898 Contra Costa near Diablo Country Club Comment
  JEPS87217  Plantago major Lauramay T. Dempster 1991-6-15 Contra Costa Orinda; 15 El Toyonal Comment
  UC1607651  Plantago subnuda Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10882 Contra Costa just w Antioch marina (levee at n-center of preserve, at end of road); Dow Wetlands Preserve Comment
  CAS-BOT-BC91605  Platystemon californicus John Thomas Howell 1933-5-14 11277 Contra Costa Hills east of Saint Mary's College. Comment
  UC1126493  Platystemon californicus R. C. Wilson 1935-3-26 143 Contra Costa 2 mi n Walnut Creek; Concord Quad. Comment
  UC692192  Platystemon californicus Mary L. Bowerman 1935-4-17 2828 Contra Costa 2 mi from entrance Mount Diablo North Rd; Mount Diablo 237 Comment
  UC101590  Platystemon californicus Katharine Brandegee 1907-5-5 i Contra Costa between Antioch and Marsh Creek (Judsonville) (300 yds along a sandy road back of oldest Coal Mine); between Antioch and Marsh Creek (Judsonville) Comment
  POM300583  Platystemon californicus var. californicus Mary L. Bowerman 1933-4-15 1868 Contra Costa Canyon south of Arroyo del Cerro; Rocky knoll 250 feet below spring. Comment
  JEPS14520  Plectritis macrocera L. T. Dempster 1956-5-26 1003 Contra Costa above Overhill Court (Orinda); Orinda Comment
  UC28871  Plectritis macrocera Jos. Burtt Davy 1901-4-21 Contra Costa Wildcat Canyon Comment
  UC28872  Plectritis macrocera Jos. Burtt Davy 1901-4-21 Contra Costa Wildcat Canyon Comment
  UC691521  Plectritis macrocera Mary L. Bowerman 1931-5-7 807 Contra Costa Mount Diablo, North Peak North Peak; Mount Diablo, North Peak Comment
  UC2027993  Plectritis macrocera Barbara Ertter with Tony Morosco 1998-4-12 16025 Contra Costa Connector trail on north side of Mount Olympia, north side of Mount Diablo. Comment
  UC416755  Plectritis macrocera Harley P. Chandler 1901-3-22 883 Contra Costa near Fish Ranch Comment
  CAS-BOT-BC260948  Pleuropogon californicus var. californicus Peter H. Raven; G. Thomas Robbins 1956-4-28 9042 Contra Costa Just east of junction to Martinez along State Highway 4 Comment
  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-BC356112  Pluchea odorata Walter Knight; J. Dean 1978-8-14 3137 Contra Costa Browns Island Comment
  CAS-BOT-BC356113  Pluchea odorata Walter Knight; J. Dean 1978-8-14 3137 Contra Costa Browns Island Comment
  CDA8486  Pluchea odorata D. G. Kelch, A. G. Murdock 2004-9-2 4 .334 Contra Costa Carquinez Strait Region; Pacheco Marsh. Marsh east of Martinez and I-680 and east of lone tree Marsh. Comment
  CAS-BOT-BC261042  Poa D. E. Breedlove 1971-5-14 19338 Contra Costa Along Sierra Vista Way, Lafayette Comment
  CAS-BOT-BC246644  Poa howellii John Thomas Howell 1933-5-14 11256 Contra Costa Hills east of St. Mary's College Comment
  JEPS99538  Poa howellii Mary L. Bowerman 1978-5-14 Contra Costa Mount Diable. Eagle Peak Old Mines trail. Comment
  POM224442  Poa infirma Alice Eastwood, J. T. Howell 1936-4-19 s.n. Contra Costa Antioch Comment
  POM301052  Poa secunda Mary L. Bowerman 1935-5-18 3031 Contra Costa Meridian Peak north of the summit parking area 1067 Comment
  CAS-BOT-BC236394  Poa secunda subsp. secunda Alice Eastwood 1921-4-18 10289 Contra Costa Antioch Comment
  UC39568  Poa secunda subsp. secunda Alice Eastwood 1893-5-3 Contra Costa Antioch Comment
  UC70972  Poa secunda subsp. secunda unknown Contra Costa Region of Mt Diablo Comment
  UCD91671  Poa secunda subsp. secunda P. B. Kennedy 1916-5-1 s.n. Contra Costa Pinehurst. Comment
  SEINET883324  Poaceae F. W. Gould 1941-1 1304 Contra Costa near San Francisco Bay at Albany. Comment
  UC971696  Pogogyne douglasii Leo Koch 1940-6-5 1002 Contra Costa along railroad tracks, saline flat two miles south fo San Rafael ferry dock Comment
  UC1795893  Pogogyne serpylloides Barbara Ertter, Lisa Schultheis 1995-4-27 14017 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; head of west facing scrub-filled draw (east of golf-course). 182 Comment
  JEPS62457  Pogogyne serpylloides John Thomas Howell 1930-4-22 4747 Contra Costa Bald Peak, Berkeley Hills. Comment
  UC1988933  Pogogyne serpylloides John Thomas Howell 1930-4-22 4747 Contra Costa Bald Peak Comment
  UC2028029  Pogogyne serpylloides Barbara Ertter 1997-9-14 15803 Contra Costa WSW base of Mount Diablo, along creek at fence line between Pine Ridge and lower Wall Point Road from Macedo Ranch. Comment
  JEPS65184  Pogogyne zizyphoroides L. R. Heckard 1971-4-15 2483 Contra Costa At intersection of Holey Road, South of Byron. Comment
  UC1988939  Pogogyne zizyphoroides R. F. Hoover 1941-4-12 4842 Contra Costa 2 mi S of Antioch Comment
  UC692147  Polygonum amphibium Mary L. Bowerman 1935-7-22 3182 Contra Costa Chase Pond Mount Diablo (in water 4 feet from shore, s side of Meridian Peak, by Old Government Trail) 548 Comment
  JEPS78621  Polygonum amphibium var. emersum Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3283 Contra Costa Botany Cove Browns Island Comment
  JEPS121070  Polygonum aviculare Dean G. Kelch and Andrew G. Murdock 2005-6-27 DGK 05 .396 Contra Costa Crockett. 6th Street at Lillian Street. Comment
  UC6649  Polygonum aviculare subsp. aviculare Hansen Sept. 1899 Contra Costa Byron Springs Comment
  JEPS112029  Polygonum aviculare subsp. buxiforme Dean G. Kelch and Andrew G. Murdock 2005-3-13 DGK 05 .044 Contra Costa Crockett - weedy area under Zampa Bridge. Comment
  CAS-BOT-BC414177  Polygonum aviculare subsp. depressum R. E. Frenkel 1963-9-8 278 Contra Costa On Walnut Blvd., Walnut Creek Comment
  CDA23558  Polygonum aviculare subsp. neglectum D. G. Kelch 2007-10-6 7 .632 Contra Costa Carquinez Strait; Fernandez Ranch. Muir Land Trust Property 4.5 km W of Rodeo. Comment
  CDA2797  Polygonum cuspidatum G. D. Barbe 1975-10-29 2101 Contra Costa Bank of Lafayette Creek, Mt. Diablo Blvd. at Village Center, Lafayette 0 Comment
  UC42882  Polypodium E. L. Greene 1892-3-20 Contra Costa Red Rock; Bay of San Francisco Comment
  UC1446049  Polypodium calirhiza Alan Smith with Ed Lee 1979-4-25 731 Contra Costa n side Mt. Diablo Peak (trail beyond Devil's Elbow toward saddle between Mt. Diablo and North Peak) 1066 Comment
  JEPS79616  Polypodium calirhiza Edward Lee 1979-4-26 Contra Costa prospector's jeep trail Devil's Elbow; Mt. Diablo Comment
  CAS-BOT-BC350932  Polypogon Peter Rubtzoff 1968-9-18 5966 Contra Costa North Gate Road, ca. 5 miles northwest of Mt. Diablo State Park north entrance. Comment
  UC1819008  Polypogon interruptus Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14233 Contra Costa South side Mount Diablo, Sheepherder Springs complex 1/2 mile north of Curry Point, wet ground in grassland. 487 Comment
  UC1819024  Polypogon interruptus Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14634 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; along stream above stable, riparian vegetation. 91 Comment
  CDA9488  Polypogon monspeliensis D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .213 Contra Costa Byron Airport. Comment
  UC665693  Polypogon monspeliensis Thomas Morley 1940-11-21 85 Contra Costa banks at upper end of San Leandro Lake near mouth of Redwood Creek; upper end of San Leandro Lake, near mouth Redwood Creek 129 Comment
  UCD37370  Polypogon monspeliensis Beecher Crampton 1959-9-3 5453 Contra Costa Contra Costa County, 2 miles north of city of Orinda, Bear Creek, East Bay Municipal Utilities District Project. Comment
  UCD91279  Polypogon monspeliensis Beecher Crampton 1956-5-14 3412 Contra Costa 1 mile east of Pacheco, Buchanan Field. Comment
  RSA720803  Polypogon viridis Mary L. Bowerman 1975-9-14 s.n. Contra Costa Mount Diablo. Muddy rivuley coming from leak in pipe near Chase Pond. Comment
Read comments Jun 30 2011
  UC2028386  Polypogon viridis Barbara Ertter 1998-6-20 16256 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, wet margin of Willow Spring Pond south of Ginder Gap Comment
  CAS-BOT-BC237470  Polypogon viridis Mary L. Bowerman 1936-8-17 3527 Contra Costa Mount Diablo. Sulphur Spring in Pine Canyon 137 Comment
  CAS-BOT-BC76718  Polystichum lemmonii C. G. Pringle 1881-8-20 s.n. Contra Costa Mountains about eh head waters of the Sacramento River Comment
  UC606764  Polystichum munitum Edward Lee 1936-4-19 1983 Contra Costa se slope of island Red Rock; San Francisco Bay Comment
  CAS-BOT-BC102382  Populus fremontii Ira L. Wiggins 1930-4-18 4602 Contra Costa Levee bank, S.E. side of Jersey Island Comment
  CAS-BOT-BC102383  Populus fremontii Walter Knight; Irja Knight; J. T. Howell; E. McClintock; et al. 1978-9-5 3223 Contra Costa Browns Island Comment
  UC1925893  Populus fremontii Donald G. Nelson 1937-4-29 514 Contra Costa Road from Pinole south towards Alhambra Road. Comment
  UC403974  Populus fremontii subsp. fremontii W. L. Jepson 1907-4 Contra Costa near Walnut Creek (San Ramon Valley); San Ramon Valley Comment
  UC4923  Populus fremontii subsp. fremontii W. C. Blasdale 1901-9-28 Contra Costa San Pablo; at the old Castro house, along the creek 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
  UC2042775  Potamogeton berchtoldii Barbara Ertter with Lynne Hosley 1992-8-29 11267 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, stock pond near junction of Eagle and Volvon trails at north end of preserve. Comment
  UC1606300  Potamogeton filiformis Barbara Ertter with Lynne Hosley and Sid Cowles 1992-6-7 11087 Contra Costa pond in quarry E of Round Top; Sibley Volcanic Regional Preserve, Oakland Hills Comment
  JEPS78628  Potamogeton pectinatus Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3295 Contra Costa mouth of Crooked Slough; Browns Island, East Bay Regional Park District Comment
  UCD122075  Proboscidea lutea J. B. Calleri 1930-10-1 2149 Contra Costa Martinez, Cal. Comment
  CAS-BOT-BC158576  Prunus Walter Knight 1965-3-1 s.n. Contra Costa Antioch Dunes Comment
  JEPS99979  Prunus cerasifera G. Smick 2003-5-1 GAS 161 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1789204  Prunus dulcis Barbara Ertter with Dan Norris 2001-4-8 17602 Contra Costa Lime Ridge Open Space, main pit of W quarry area N of adjacent golf course 121 Comment
  UC691146  Prunus virginiana var. demissa Mary L. Bowerman 1933-5-21 2148 a Contra Costa Grape Spring s from Curry Canyon (Mount Diablo); , Grape Spring Comment
  POM300692  Prunus virginiana var. demissa Mary L. Bowerman 1933-5-21 2148 -a Contra Costa Grape Spring (S from Curry Canyon) Comment
  CDA42365  Pseudognaphalium californicum D. G. Kelch, Vince Guise 2012-7-26 12 .232 Contra Costa El Sobrante; Circle Dr. Comment
  UC691824  Pseudognaphalium californicum Mary L. Bowerman 1935-5-30 3089 Contra Costa Eagle Point ridge 320 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
  UC2028099  Pseudognaphalium stramineum Barbara Ertter, Chris Thayer 1996-10-25 15373 Contra Costa West side of Mount Diablo, North Gate Road 1 road mile NW of Burma Road, at west end of Long Ridge. Comment
  UC1948940  Pseudognaphalium thermale William J. Ferlatte, L. Maynard Moe 1970-4-27 1257 Contra Costa San Francisco Bay: Red Rock Island Comment
  CDA9495  Psilocarphus brevissimus D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .219 Contra Costa Byron Airport. Comment
  UC1051469  Psilocarphus brevissimus var. brevissimus Herbert L. Mason 1952-4-14 14266 Contra Costa 3.5 mi s Byron Comment
  UC1563700  Psilocarphus brevissimus var. brevissimus Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8143 Contra Costa ca 15 air mi sw Stockton (w and adjacent to Clifton Court Forebay, se Contra Costa Co.) Comment
  JEPS111756  Psilocarphus tenellus D. G. Kelch 2005-5-1 05 .204 Contra Costa Crockett - Edwards Canyon 100 Comment
  UC35753  Psilocarphus tenellus W. H. Brewer 1862-5-26 1165 Contra Costa canyon near Mount Diablo Comment
  UC694157  Psilocarphus tenellus Herbert L. Mason 1932-4-15 6926 Contra Costa summit of Road Moraga to Lafayette Comment
Read comments Oct 6 2006
  UC2027817  Psilocarphus tenellus var. tenellus Barbara Ertter with Stu Garrett 1997-3-29 15535 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  RSA448385  Ptelea baldwinii subsp. crenulata John Doyen, Glenn Gorelick 1966-4-22 s.n. Contra Costa Russelman Park. Mt. Diablo State Park. Comment
  CAS-BOT-BC148629  Ptelea crenulata Alice Eastwood 1897-5-31 s.n. Contra Costa Mount Diablo Comment
  CAS-BOT-BC148630  Ptelea crenulata Alice Eastwood; John Thomas Howell 1936-4-19 2134 Contra Costa Nortonville Comment
  CAS-BOT-BC148644  Ptelea crenulata V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley Comment
  JEPS40166  Ptelea crenulata H. L. Mason 1928-3-31 Contra Costa Mt. Diablo Comment
  SJSU5754  Ptelea crenulata C. O. Dudley 1966-5-1 103 Contra Costa Reliez Valley, Briones Hills, N of Lafayette 152 Comment
  UC137407  Ptelea crenulata C. F. Baker 1903-4-28 2943 Contra Costa Mitchell's Canyon; Mt. Diablo Comment
  UC85435  Ptelea crenulata Katharine Brandegee 1907-6-16 Contra Costa hills back of Antioch Comment
  UC868043  Ptelea crenulata Lewis S. Rose 1940-4-30 40249 Contra Costa 6 mi e Clayton; Marsh Creek 45 Comment
  CAS-BOT-BC421113  Pterostegia drymarioides Alice Eastwood 1915-5-30 4436 Contra Costa Mt. Diablo Comment
  JEPS57983  Pterostegia drymarioides W. L. Jepson 1923-4-22 9867 Contra Costa Mt. Diablo Comment
  UC692210  Pterostegia drymarioides Mary L. Bowerman 1931-3-29 617 Contra Costa e. end Cave Point Ridge; Mt. Diablo Comment
  UC691327  Quercus X chasei Mary L. Bowerman 1935-10-26 3349 Contra Costa 0.1 mi (by road) above Silver Springs (50 ft from road); Mount Diablo 859 Comment
  UC691281  Quercus X eplingii Mary L. Bowerman 1935-11-30 3351 Contra Costa sw of Gibraltar Rock; Mount Diablo, Fossil Ridge Comment
  UC691317  Quercus X morehus Mary L. Bowerman 1933-6-14 2278 Contra Costa Inner Black Hills, w of 1970 Mount Diablo Comment
  CAS-BOT-BC45659  Quercus agrifolia Alice Eastwood 1914-2-24 3733 Contra Costa Antioch Comment
  CDA31284  Quercus agrifolia D. G. Kelch, Troy McGregor 2010-2-7 10 .030-B Contra Costa Carquines Strait; W of Martinez in hills. Comment
  JEPS37364  Quercus agrifolia W. L. Jepson Oct. 1909 3498 Contra Costa Moraga Ridge Comment
  JEPS37717  Quercus agrifolia W. L. Jepson 1907-4-26 2648 b Contra Costa Mt. Diablo Comment
  UC1084391  Quercus agrifolia G. Thomas Robbins 1937-4-25 147 Contra Costa 2 mi e Alamo (on road to Mt. Diablo) Comment
  UC691325  Quercus agrifolia Mary L. Bowerman 1930-10-25 495 Contra Costa near Sloan Road; Mount Diablo, Inner Black Hills Comment
  UC691295  Quercus berberidifolia Mary L. Bowerman 1933-6-21 2341 Contra Costa Median Ridge (Donner Canyon) Mount Diablo Comment
  RSA0041717  Quercus berberidifolia Mary L. Bowerman 1930-10-19 490 Contra Costa South road at Garden-of-the-Gods (Fossil Ridge). Comment
  UC2028192  Quercus berberidifolia Barbara Ertter with Ann Dennis 1998-1-25 15908 a Contra Costa Donner Canyon on north side Mount Diablo, Middle Trail/Falls Trail. Comment
  UC847906  Quercus chrysolepis Lewis S. Rose 1941-5-15 41236 Contra Costa w slope Mt. Diablo Comment
  UCR247487  Quercus chrysolepis Dean Kelch 2011-5-4 11 .224 Contra Costa Central Coast, near Morgan Territory Regional Park, west of Morgan Territory Road 610 Comment
  CAS-BOT-BC86646  Quercus douglasii H. E. McMinn 1922-6-2 84 Contra Costa North slope of Mt. Diablo Comment
  UC521666  Quercus douglasii Joseph Andorfer Ewan 1933-10-15 8028 Contra Costa Mt. Diablo 1066 Comment
  POM301005  Quercus durata Mary L. Bowerman 1932-10-16 1632 Contra Costa Donner Canyon Trail. Comment
  UC1748011  Quercus garryana E. Dean, M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 654 Contra Costa Fossil Ridge, just upslope of South Gate Rd., just W of Gibralter Rock, SE of Rock City Mount Diablo State Park 487 Comment
  UC691288  Quercus garryana Mary L. Bowerman 1930-10-19 491 Contra Costa Fossil Ridge (Garden-of-the-Gods) Mount Diablo Comment
  UC2028550  Quercus kelloggii Barbara Ertter 1997-9-14 15813 Contra Costa Southwest side of Mount Diablo, Secret Trail at head of Pine Canyon Comment
  UC2070456  Quercus kelloggii Barbara Ertter with Joanne Kerbavaz 2000-6-12 17311 Contra Costa Rocky City area on SSW side of Mount Diablo. Comment
  UC5607  Quercus kelloggii unknown 1800-1 Contra Costa Comment
  UC1135713  Quercus lobata R. W. Lundh 1932-9-1 154 Contra Costa 1 mi n Eagle Point; Mt. Diablo Quad. 228 Comment
  UCD46828  Quercus lobata John M. Burns 1959-8-16 s.n. Contra Costa Tilden Regional Park, Berkeley Hills, Contra Costa County, California. 1 Comment
  RSA0016755  Quercus parvula var. shrevei Ellen Dean, Barbara Ertter, J. M. Tucker, C. Chaney 2000-9-13 650 Contra Costa City of El Sobrante; El Sobrante Ridge, upslope of the terminus of Heavenly Ridge Road, junction of Heavenly Ridge Trail and Manzanita Trail. 213 Comment
  UCD17417  Quercus parvula var. shrevei E. Dean; with B. Ertter, J. M. Tucker, and K. Chaney 2000-9-13 653 Contra Costa California. Contra Costa County: City of El Sobrante; El Sobrante Ridge, upslope of the terminus of Heavenly Ridge Rd., just south of junction of Heavenly Ridge Trail and Manzanita Trail, along Manzanita trail. 213 Comment
  CAS-BOT-BC104707  Quercus wislizeni John Thomas Howell 1950-6-5 26637 Contra Costa Nortonville Comment
  CDA31191  Quercus wislizeni D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .228 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  UC1135852  Quercus wislizeni R. C. Wilson 1935-3-13 127 Contra Costa 1.5 mi w Cave Pt.; Mt. Diablo Quad. 563 Comment
  UC691297  Quercus wislizeni Mary L. Bowerman 1933-9-30 2449 Contra Costa e end Meridian Flat; Mount Diablo 807 Comment
  UCD17415  Quercus wislizeni E. Dean; with B. Ertter, J. M. Tucker, and K. Chaney 2000-9-10 651 Contra Costa California. Contra Costa County: City of El Sobrante; El Sobrante Ridge, upslope of the terminus of Heavenly Ridge Rd., junction of Heavenly Ridge Trail and Manzanita Trail. 213 Comment
  CAS-BOT-BC104711  Quercus wislizeni Mary L. Bowerman 1934-3-18 2480 Contra Costa Mount Diablo. Russelman Park: End of road Comment
  CAS-BOT-BC104718  Quercus wislizeni D. C. Barclay 1919-5-10 s.n. Contra Costa from the hill above Redwood Inn, Moraga Valley Comment
  CAS-BOT-BC362441  Rafinesquia californica Mary L. Bowerman 1930-6-14 327 Contra Costa Mount Diablo. Meridian Peak little below summit Comment
  POM268432  Ranunculus californicus Lyman Benson 1935-3-16 6271 Contra Costa Mt. Diablo, Watershed: Walnut Creek; Mountain Range: Mt. Diablo. 915 Comment
  SEINET13717644  Ranunculus californicus Unknown 1948-2-12 1103 Contra Costa West facing slope along Bear Creek Canyon in Lawson Hill area. Comment
  RSA0068489  Ranunculus californicus var. californicus Katie Gallagher, Nick Jensen 2014-4-26 185 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  SEINET11263164  Ranunculus canus Barbara Ertter, Brad Olson; James R. Shevock 1997-3-19 15505 Contra Costa East of Los Vaqueros Reseroir between Livermore and Brentwood.; 0 Comment
  UCR263546  Ranunculus canus Barbara Ertter, R. K. Brummitt 1998-5-6 16090 Contra Costa San Francisco Bay Region, lower Donner Canyon on north base of Mount Diablo, Hetherington Trail upstream from Donner Cabin 274 Comment
  POM268399  Ranunculus canus Lyman Benson 1931-3-18 2655 Contra Costa Mt. Diablo near Danville; Mt. Range: Mt. Diablo; Watershed: Walnut Creek 152 Comment
  POM268460  Ranunculus canus Lyman Benson 1931-3-28 2654 Contra Costa Danville; Mt. Range: Mt. Diablo 122 Comment
  UC2028119  Ranunculus canus Barbara Ertter with Richard K. Brummitt 1998-5-6 16090 Contra Costa Lower Donner Canyon on north base of Mount Diablo, Hetherington Trail upstream from Donner. Comment
  UC13970  Ranunculus canus var. canus Chesnut and Drew 1889-4-17 Contra Costa Clayton Comment
  UC480976  Ranunculus canus var. canus Katharine Brandegee 1907-5-4 Contra Costa near Antioch; Judsonville Comment
  UC692171  Ranunculus canus var. canus Mary L. Bowerman 1932-3-23 1127 Contra Costa East of Donner Creek; Mount Diablo Comment
  JEPS112061  Ranunculus hebecarpus D. G. Kelch 2005-5-1 05 .183 Contra Costa Crockett - Edwards Canyon 150 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
  UC2029153  Ranunculus lobbii Barbara Ertter with Mary Bowerman 1995-5-7 14035 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton. Comment
  POM300584  Ranunculus muricatus Mary L. Bowerman 1933-4-15 1844 Contra Costa Canyon S of Arroyo del Cerro Comment
  UC2062687  Ranunculus occidentalis Barbara Ertter with David Gowen 2013-4-19 21317 Contra Costa Southwestern Mount Diablo State Park southeast of Walnut Creek, lower end of Little Yosemite Trail. Comment
  UC2028579  Ranunculus occidentalis Barbara Ertter with Linda Vorobik 2001-3-24 17572 Contra Costa Lime Ridge Open Space east of Walnut Creek, eastern edge overlooking Crystyl Springs subdivision. Comment
  RSA85297  Ranunculus occidentalis var. ultramontanus F. W. Peirson 1925-7-1 6171 Contra Costa Wood borders, State Line, Lake Tahoe Comment
Read comments Feb 10 2013
  UCD97103  Ranunculus sceleratus Mr. Nevin 1924-3-24 s.n. Contra Costa Antioch. Comment
  UC2027957  Ranunculus sceleratus Barbara Ertter with Joanne Kerbavaz 2000-8-20 17499 Contra Costa South side Mount Diablo, spring feeding Chase Pond. Comment
  JEPS100009  Raphanus raphanistrum G. Smick 2003-4-8 GAS 132 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA0027717  Raphanus raphanistrum Barbara Ertter, R. K. Brummitt 1998-5-13 16134 Contra Costa North Gate Road on west side of Mount Diablo, hairpin turn opposite Angel Kerley trailhead. 579 Comment
  UC606739  Raphanus sativus Edward Lee 1936-4-19 1961 Contra Costa Red Rock, ne corner of the island Red Rock; San Francisco Bay Region, Red Rock Comment
  JEPS75497  Rhamnus californica P. F. Yorks 1975-5-31 424 Contra Costa ca 1.6 km s Bear Creek Road on Hampton Road in Hamption Natural Reserve (n of Briones Reservoir) 180 Comment
  UC1071553  Rhamnus californica N. French 1933-3-13 35 Contra Costa San Pablo, above Sheldon School San Francisco Quad. 91 Comment
  UC692596  Rhamnus californica Mary L. Bowerman 1932-11-26 1677 Contra Costa Pepperwood Springs (by w road not far from junction of roads) Mount Diablo Comment
  UC692600  Rhamnus californica Mary L. Bowerman 1935-6-21 3147 Contra Costa Arroyo del Cerro, e fork Mount Diablo 274 Comment
  UC33654  Rhamnus californica subsp. californica J. Burtt Davy 1891-11-25 Contra Costa Wildcat Canyon Comment
  CAS-BOT-BC59898  Rhamnus ilicifolia L. R. Abrams 1910-10-8 4352 Contra Costa Mt. Diablo. 1158 Comment
  JEPS95251  Rhamnus tomentella Steve Edwards 1995-9-22 Contra Costa Briones Regional Park, Bear Creek Entrance, near junction of trails to archery range and lagoons Comment
  JEPS98405  Rhaponticum repens Bob Case 2001-10-2 Contra Costa East Bay Municipal Utilities District right-of-way on West Hookston Road Pleasant Hill, SE Comment
  CAS-BOT-BC200698  Rhus aromatica Mary L. Bowerman 1933-3-25 1776 Contra Costa Emmons Canyon, off Stone Valley Comment
  JEPS77003 Image available Ribes amarum Robert M. Lloyd 1963-3-17 2133 Contra Costa 0.5 mi e Grizzly Peak Road (on Skyline Drive (across from 7090 Skyline Drive), Huckleberry trail); Huckleberry trail Comment
  JEPS77004 Image available Ribes amarum Robert M. Lloyd 1963-3-17 2133 Contra Costa 0.5 mi e Grizzly Peak Road (on Skyline Drive (across from 7090 Skyline Drive), Huckleberry trail); Huckleberry trail Comment
  UC578075  Ribes californicum N. French 1933-2-23 32 Contra Costa Berkeley Hills San Farncisco Quadrangle Comment
  JEPS100039  Ribes californicum var. californicum S. O'Neil 2003-2-25 SEO 9 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CHSC22701  Ribes divaricatum Carol C. Getzinger 1964-4-26 51 Contra Costa Wildcat Canyon Road 1.3 miles from junction with Spruce Street and Grizzly Peak Boulevard. 152 Comment
  SJSU7862  Ribes malvaceum J. A. Merriman 1965-2-13 Contra Costa North Rd, Mt Diablo Comment
  UC1614322  Ribes malvaceum Charles M. Belshaw 1935-12-28 1422 Contra Costa Las Trampas Ridge, on trail above ranch house Las Trampas Ridge Comment
  JEPS22440 Image available Ribes menziesii Mary L. Bowerman 1930-6-10 314 Contra Costa summit Mt. Diablo Comment
  JEPS111985 Image available Ribes sanguineum var. glutinosum D. G. Kelch 2004-6-19 04 .285 Contra Costa Crockett - West Valona north-facing hill above/along railroad tracks. West of Carquinez Bridge. Crockett 20 Comment
  JEPS111953  Ricinus communis D. G. Kelch 2004-7-9 04 .316 Contra Costa Rodeo Shore 2 Comment
  CAS-BOT-BC362960  Rigiopappus leptocladus Mary L. Bowerman 1933-5-8 2016 Contra Costa Mount Diablo. Fossil Ridge near crest, on north side by side road Comment
  UC691502  Rigiopappus leptocladus Mary L. Bowerman 1933-5-10 2064 Contra Costa ridge below Indian Ceremonial Spring; Mount Diablo Comment
  JEPS99482  Rigiopappus leptocladus Mary Bowerman 1977-5-29 Contra Costa Mount Diablo. SW corner Russellman Park. 365 Comment
  POM301017  Rigiopappus leptocladus Mary L. Bowerman 1933-5-10 2061 Contra Costa Ridge at east end of, and south of, Meridian Flat. 823 Comment
  UC24540  Romanzoffia californica H. N. Bolander 1866-1 6280 Contra Costa Mt. Diablo Comment
  UC2028024  Rorippa curvisiliqua Barbara Ertter 1997-9-14 15809 Contra Costa West side of Mount Diablo, ponds along Barbeque Terrace Road in upper Pine Canyon. Comment
  UC1795617  Rosa Barbara Ertter 1993-4-2 11481 Contra Costa along railroad west of Crockett at west edge of Carquinez Straits Comment
  CAS-BOT-BC147407  Rosa californica Peter H. Raven 1957-7-5 11053 Contra Costa Point Isabel Comment
  UC630419  Rosa californica Paule Guiguet and Annetta Carter 1939-8-13 1450 Contra Costa se Clayton; Mount Diablo drainage, Donner Creek 152 Comment
  CAS-BOT-BC147411  Rosa californica Mary L. Bowerman 1931-5-13 841 Contra Costa Pine Canyon one mile above the Sulphur Spring Comment
  SEINET10957118  Rosa sempervirens D. Gowen 2007-5-31 Gowen 695 Contra Costa Carquinez Regional Park. NW Contra Costa County, near Crockett, W of jct. San Pablo Ave. and Rio Del Vista. 30 Comment
  UC691164  Rubus discolor Mary L. Bowerman 1942-10-4 3853 Contra Costa Russelman Park road Mount Diablo Comment
  JEPS66120  Rubus ulmifolius var. inermis Pat Watters 1971-6-9 Contra Costa vacant lot at Ferry and Green Streets Martinez Comment
  CAS-BOT-BC421739  Rumex conglomeratus Walter Knight 1965-9-7 1176 Contra Costa Antioch sand dunes. Comment
  UC465806  Rumex crispus J. Burtt Davy 1895-4-8 976 Contra Costa Antioch Comment
  UC692169  Rumex crispus Mary L. Bowerman 1935-5-30 3082 Contra Costa Donner Canyon stream Mount Diablo 152 Comment
  CHSC116601  Rumex dentatus Lowell Ahart; Jpsephine Guardino 2016-4-19 20783 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 1.4 miles northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  JEPS127097  Rumex dentatus Lowell Ahart, Josephine Guardino 2016-4-19 20783 Contra Costa 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  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
  UCD101441  Rumex pulcher Rimo Bacigalupi; L. R. Heckard 1965-5-11 9075 Contra Costa On West side of Brooks Island (in San Francisco Bay south-west of Richmond). 6 Comment
  UC606732  Rumex salicifolius var. salicifolius Edward Lee 1936-4-19 1949 Contra Costa ne shore Red Rock; San Francisco Bay Comment
  CDA42433  Rupertia physodes D. G. Kelch 2012-5-27 12 .073 Contra Costa Carquinez Strait Region; Pinole Valley Park. Comment
  JEPS121055  Rupertia physodes Dean G. Kelch and Andrew G. Murdock 2004-5-9 042 .12 Contra Costa Crockett - Bull Valley Comment
  UC1613949  Rupertia physodes Charles M. Belshaw 1935-6-24 1030 Contra Costa Sobrante Hills Comment
  UC16326  Rupertia physodes unknown 1032 Contra Costa Mount Diablo Comment
  UC1745890 Image available Rupertia physodes Annetta M. Carter, Edward Lee 1936-5-24 1191 Contra Costa Marsh Creek about 2 mi. SE of Curry Canyon. Comment
  JEPS127040  Sagina apetala Lowell Ahart, Josephine Guardino 2016-4-19 20774 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  UC692535  Sagina decumbens subsp. occidentalis Mary L. Bowerman 1933-5-8 2028 Contra Costa w. end of second small flat n. of Rock City Camp Comment
  UCD143634  Sagina procumbens Mack Osborne 1948-6-25 s.n. Contra Costa Danville. Comment
  SEINET11268191  Salicornia europaea Barbara Ertter 1990-9-30 9656 Contra Costa Point Pinole Regional Shoreline, edge of sparina marsh at edge of salicornia marsh on SW corner of park; edge of San Pablo Bay.; 0 Comment
  UC69377  Salix Wm. W. Mott 1905-3-11 Contra Costa n.e. corner San Pablo and McAvoy Lane Comment
  CAS-BOT-BC129920  Salix bonplandiana C. F. Baker 1903-4-28 2814 Contra Costa Mount Diablo - Mitchell Canyon Comment
  CAS-BOT-BC104088  Salix hindsiana Ira L. Wiggins 1930-4-18 4587 Contra Costa Levee banks, Jersey Island Comment
  UCD35153  Salix hindsiana Beecher Crampton 1950-7-4 600 Contra Costa Railroad embankment, Richmond. Comment
  JEPS112253  Salix laevigata D. G. Kelch 2005-3-11 05 .038 Contra Costa Martinez - Franklin Hills; Carquinez Shoreline EBRP. West of Martinez High School. Comment
  POM300613  Salix laevigata Mary L. Bowerman 1933-5-10 2067 Contra Costa Spring on ridge below Indian Ceremonial Spring. Mt. Diablo. 976 Comment
  POM300614  Salix laevigata Mary L. Bowerman 1933-4-15 1854 Contra Costa Canyon S of Arroyo del Cerro Comment
  UC691923  Salix laevigata Mary L. Bowerman 1933-5-21 2162 a Contra Costa stream bed immediately below thimbleberry patch in Sulphur Spring fork; Mt. Diablo, Sulphur Spring Canyon Comment
  UC692052  Salix laevigata Mary L. Bowerman 1931-3-1 530 Contra Costa near w. entrance = N. Gate Mt. Diablo Comment
  UC494334  Salix laevigata Annetta M. Carter 1933-3-12 266 Contra Costa ca. 1.5 mi e Contra Costa Co. Preventorium (Marsh Creek Rd.) Comment
  CDA23063  Salix lasiolepis D. G. Kelch, D. A. Weinstein 2008-4-25 8 .087 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
Read comments Jan 7 2016
  JEPS97546  Salix lasiolepis R. D. Stone 1981-3-23 341 Contra Costa Huckleberry Trail Oakland Hills, near Alameda-Contra Costa county line (NE of intersection of Skyline Blvd. and Snake Rd.) 396 Comment
  POM300610  Salix lasiolepis Mary L. Bowerman 1933-4-9 1830 Contra Costa Donner Canyon, W fork. Below Twin Peaks. Mt. Diablo. Comment
  UC692062  Salix lasiolepis Mary L. Bowerman 1933-2-23 1721 Contra Costa Donner Canyon Mount Diablo (w fork toward mouth, by streambed) 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-BC129598  Salix lasiolepis var. lasiolepis Mary L. Bowerman 1932-11-19 1650 Contra Costa Pioneer Camp: along stream from the spring - Mount Diablo Comment
  JEPS95226  Salix scouleriana Stephen W. Edwards 1995-10-20 Contra Costa Round Top, W flank Robert Sibley Volcanic Regional Preserve Comment
  CDA37041  Salsola australis P. Akers 2003-10-7 B 107 Contra Costa San Joaquin Valley; Contra Costa water district, E edge of Discovery Bay on Hwy 4. 7 Comment
  UCR263552  Salsola soda Barbara Ertter 1990-9-30 9659 Contra Costa San Francisco Bay Region, Point Pinole Regional Shoreline on San Pablo Bay, north Richmond; on N edge of park 2 Comment
  JEPS62550  Salvia carduacea Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  JEPS62659  Salvia columbariae W. L. Jepson 1921-11-19 9519 Contra Costa s slope 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
  UC1124790  Salvia mellifera R. W. Lundh 1933-3-25 221 Contra Costa 1 mi w Alamo; Concord Quad. 213 Comment
  UC25729  Salvia mellifera Harley P. Chandler 1901-4-5 976 Contra Costa Mt. Diablo Comment
  UC691509  Salvia mellifera Mary L. Bowerman 1930-6-5 240 Contra Costa 2.9 mi from Mount Diablo West road entrance (=North Road); Mount Diablo 274 Comment
  CSUSB999  Sambucus mexicana Mark T. Wexler 1973-5-22 Contra Costa El Sobrante. Collected across the street from the intersection of Jo-lin Street and Valley View Road in a small, sandy ravine (wash). 152 Comment
  RSA477576  Sambucus mexicana B. C. Templeton 1962-6-10 s.n. Contra Costa Mt Diablo. Comment
  JEPS121564  Sambucus nigra subsp. caerulea Adam C. Schneider 2013-10-12 317 Contra Costa Briones Regional Park, along north side of Beark Creek Trail, about 3/4 mile east of Oak Grove campground. Comment
  CAS-BOT-BC223247  Sanicula bipinnata Alice Eastwood; John Thomas Howell 1936-4-19 s.n. Contra Costa Nortonville Comment
  CHSC21630  Sanicula bipinnata Willis Ball 1975-3-9 495 Contra Costa Contra Loma Regional Park. In area #8. At the peak of a large hill ca. 560 yds s of main parking lot ca. 800 yds w of Contra Loma Blvd. 152 Comment
  UC1925899  Sanicula bipinnata Donald G. Nelson 1937-3-30 468 Contra Costa Along Marsh Creek Road between Claytonville and Byron Comment
  CAS-BOT-BC223245  Sanicula bipinnata Alice Eastwood 1914-3-14 5792 Contra Costa Byron Springs Comment
  UCSB4634  Sanicula bipinnata Kamb, Peter; Chisaki, Francia 1950-3-18 Contra Costa Head of Pine Canyon, Mt. Diablo 533 Comment
  JEPS111603  Sanicula bipinnatifida D. G. Kelch 2003-3-21 03 .50 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  OBI70552  Sanicula crassicaulis D. G. Kelch, D. A. Weinstein 2008-4-25 8 .082 Contra Costa Alvarado Park (W end of Wildcat cyn park) on N facing hillside above Hundu temple i 122 Comment
  RSA0027881  Sanicula crassicaulis Barbara Ertter, Holly C. Forbes 1997-4-20 15563 Contra Costa North base of Mount Diablo, Eagle Peak Trail on NE side of Eagle Ridge below Twin Peaks. Comment
  RSA760659  Sanicula crassicaulis William J. Ferlatte, L. Maynard Moe 1970-4-27 1226 Contra Costa San Francisco Bay, Red Rock Island. Comment
  JEPS2845 Image available Sanicula saxatilis Edw. L. Greene 1892-6-1 Contra Costa Mt. Diablo Comment
  SD211529  Sanicula saxatilis Barbara Ertter, Brad Olson et al 1991-4-7 9728 Contra Costa Eagle Peak on Mount Diablo; scree slopes on East and Southwest side, especially in drainages 228 Comment
  RSA97364  Sanicula saxatilis Mary L. Bowerman 1931-4-25 769 Contra Costa Mount Diablo, summit Comment
  UC73326  Sanicula tuberosa Chesnut and Drew 1889-4-17 Contra Costa Clayton Comment
  UC1949240  Sanicula tuberosa Barbara Ertter with Michelle Seidl 1992-3-14 10914 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo; along Blue Oak Trail Comment
  JEPS100052  Satureja douglasii G. Smick 2003-6-6 GAS 213 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS99950  Saxifraga californica S. O'Neil 2003-2-25 SEO 8 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CDA7904  Scabiosa atropurpurea A. G. Murdock, D. G. Kelch 2003-9-12 200 Contra Costa Carquinez Strait; Nr Selby, W of Crockett. Comment
  SEINET3840825  Scabiosa atropurpurea Unknown 2006-6-23 6 .322 Contra Costa West Valona, West of Zampa Bridge above San Pablo avenue, along small stream draining north into the Western end of the Carquinez Strait 91 Comment
  UC1795652  Scandix pecten-veneris Barbara Ertter, Mary Bowerman, Lisa Schultheis 1995-3-31 13947 Contra Costa Mount Diablo State Park, grassy field along road at base of Mitchell Canyon. Comment
  RSA771187  Scandix pecten-veneris Barbara Ertter 1991-6-1 10072 Contra Costa Las Trampas Regional Wilderness in hills of Danville, paved portion of Rocky Ridge Trail ca 1 mile from parking lot 488 Comment
  CAS-BOT-BC283604  Schedonorus pratensis Barrett Anderson 1987-4-29 3485 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  SEINET11754535  Schoenoplectus acutus var. occidentalis C. W. Sharsmith 1933-1 469 Contra Costa delta lands of Sacramento & San Joaquin rivers Comment
  UCD50078  Schoenoplectus acutus var. occidentalis M. Wiesendanger 1926-6-9 1568 Contra Costa Common Tule. Richmond, Cal. Comment
  CAS-BOT-BC111464  Schoenoplectus californicus Walter Knight; Irja Knight 1977-6-18 s.n. Contra Costa On shore of San Joaquin River, Antioch sand dunes, Little Corral site. Comment
  UC2070498  Schoenoplectus californicus Barbara Ertter 2005-8-15 18630 Contra Costa East side of Contra Loma Reservoir south of Antioch, marsh in SE cove. Comment
  UC650560  Scirpus californicus Ira L. Wiggins 1930-4-18 4592 Contra Costa Levee bank Jersey Island Comment
  UC692092  Scirpus microcarpus Mary L. Bowerman 1938-9-17 3716 Contra Costa Big Spring , Big Spring (Mount 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
  UC691648  Scrophularia californica subsp. floribunda Mary L. Bowerman 1931-4-25 782 Contra Costa summit Mt Diablo Comment
  JEPS100051  Scutellaria tuberosa G. Smick 2003-4-1 GAS 113 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691407  Scutellaria tuberosa Mary L. Bowerman 1931-4-25 766 Contra Costa Mount Diablo, Meridean Peak, between summit and junction of south and west roads Mount Diablo; , Meridean Peak Comment
  UC692326  Sedum spathulifolium Mary L. Bowerman 1931-4-19 750 a Contra Costa on Mitchell Rock , on Mitchell Rock (Mount Diablo) Comment
  UC195562  Senecio aphanactis E. L. Greene 1888-3-25 Contra Costa Byron Comment
  CAS-BOT-BC327442  Senecio flaccidus var. douglasii Peter Rubtzoff 1951-10-7 824 Contra Costa Along lower San Joaquin River east of Antioch Comment
  RSA107411  Senecio flaccidus var. douglasii L. S. Rose 1955-10-17 55186 Contra Costa Antioch 15 Comment
  CAS-BOT-BC327443  Senecio flaccidus var. douglasii Walter Knight 1965-9-7 1173 Contra Costa Antioch Comment
  RSA762308  Senecio glomeratus William J. Ferlatte, L. Maynard Moe 1970-4-27 1266 Contra Costa San Francisco Bay, Red Rock Island. Comment
  JEPS37189  Senecio hydrophilus W. L. Jepson 1923-9-13 10210 Contra Costa n of Cerrito Creek; Berkeley Hills Comment
  CAS-BOT-BC363702  Senecio hydrophilus Walter Knight 1977-7-15 s.n. Contra Costa Little Corral site. Antioch Sand Dunes Comment
  CAS-BOT-BC363750  Senecio integerrimus Rimo Bacigalupi 1926-4-30 1352 Contra Costa Summit of Mt Diablo Comment
  CDA18812  Senecio mikanioides R. M. Case 1999-12-2 PDR 1219291 Contra Costa Along Wildcat Canyon Rd., 1.9 mi NW of intersection of Wildcat Canyon Rd. and Dam Rd., vicinity of Orinda. 0 Comment
  UC691361  Senecio sylvaticus Mary L. Bowerman 1933-5-11 2071 Contra Costa most westerly part of 1931 burn Mount Diablo, Inner Black Hills (Mount Diablo, Inner Black Hills) Comment
  CAS-BOT-BC364554  Senecio vulgaris Walter Knight 1965-3-1 911 Contra Costa Antioch dunes Comment
  POM181456  Senecio vulgaris Ira L. Higgins 1930-4-18 4597 Contra Costa Levee, n. end of Jersey Island. Comment
  CDA33679  Sesbania punicea Leopando & Yost 2010-8-18 PDR# 1649543 Contra Costa Martinez: Central Ave. 0 Comment
  JEPS12499  Sherardia arvensis W. L. Jepson 1896-5-31 Contra Costa Wildcat Creek; Berkeley Comment
  RSA29235  Sherardia arvensis Joseph A. Ewan 1934-3-10 8630 Contra Costa 1 mile below Orinda Road. Wildcat Canyon. 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
  UC1555371  Sidalcea malviflora subsp. laciniata Jerry Powell 1988-4-1 1530 Contra Costa Point Molate Richmond (in w Richmond) Comment
  OBI12311  Sidalcea malviflora subsp. laciniata G. Thomas Robbins, John Weiler 1959-5-23 4028 Contra Costa On the W side of Brooks Island, San Francisco Bay, Richmond Comment
  RSA721276  Sidalcea malviflora subsp. malviflora Barbara Ertter, Gary Schoolcraft 1996-4-7 14568 Contra Costa Point San Pablo inwest Richard. crest ot road to yacht harbor Comment
  JEPS111791  Silene gallica D. G. Kelch 2005-5-13 05 .242 Contra Costa Martinez. South of oil refinery along Railroad tracks in fragment of habitat 28 Comment
  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
  SEINET10760843  Silybum marianum Bonnie C. Templeton 1962-6-24 Templeton s.n. Contra Costa on the road to Mt. Diablo Comment
  SEINET4015801 Image available Silybum marianum B. C. Templeton 1962-1 sn Contra Costa On the road to Mt. Diablo. Comment
  CDA9510  Sinapis arvensis D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .237 Contra Costa CA Delta; Along Clifton Court Near Clifton Court Forebay. Comment
  UC691255  Sinapis arvensis Mary L. Bowerman 1931-4-11 710 Contra Costa Ridge e of lower Pine Canyon (Mount Diablo); Mount Diablo Comment
  UCD115424  Sinapis arvensis R. Koch 1996-4-20 2 Contra Costa city of Danville, free space by Mt. Diablo State Park. 121 Comment
  CDA3865  Sisymbrium altissimum R. DeBoer, J. Moon 1961-4-18 Contra Costa Railroad yard, 101 Garrard Boulevard, Richmond. 0 Comment
  CDA947  Sisymbrium officinale D. G. Kelch 2006-5-5 6 .13 Contra Costa East Bay; Wildcat Canyon Regional Park. Near Wildcat Canyon Road terminus. Comment
  UC691054  Sisymbrium officinale Mary L. Bowerman 1930-6-3 231 Contra Costa Mount Diablo, West road, 1.9 mi from entrance, (West road = North road) Mount Diablo; , West road Comment
  OBI70547  Sisymbrium orientale D. G. Kelch 2008-3-30 8 .027 Contra Costa Carquinez Strait: Crockets under Zampa (Carquinez) bridge 14 Comment
  CDA3848  Sisymbrium orientale J. Simmen 1973-3-2 Contra Costa Pittsburgh. 0 Comment
  CDA39475  Sisyrinchium bellum A. G. Murdock 2004-3-19 220 Contra Costa Carquinez Strait Region; Luzon. Sycamore Avenue just east of Rodeo/Hercules where train crosses Highway 4 (Luzon). Comment
  RSA0068486  Sisyrinchium bellum Katie Gallagher, Nick Jensen 2014-4-26 188 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  SEINET4061707  Sisyrinchium bellum M. W. Garcia 1960-1 60030 Contra Costa Collected on back of Tilden Park. 60 Comment
  UC2070662  Sisyrinchium bellum Barbara Ertter 2002-5-16 17861 Contra Costa Richmond Field Station (UC-Berkeley). Comment
  UC691994  Smilacina racemosa Mary L. Bowerman 1931-5-23 897 Contra Costa Alamo Canyon Mount Diablo (e fork, upper end, not far from saddle) Comment
  CDA39388  Smilacina stellata A. G. Murdock 2004-4-3 246 Contra Costa Vaca Canyon. Comment
  UC2028094  Solanum americanum Barbara Ertter, Chris Thayer 1996-10-25 15384 Contra Costa West side of Mount Diablo, North Gate Road near ranches. Comment
  UC1050776  Solanum lanceolatum N. Floy Bracelin 1942-6-21 2149 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  CAS-BOT-BC231746  Solanum lanceolatum Robert De Boer; M. Bergseng 1959-8-14 2943 Contra Costa 2459 Alva, El Cerrito Comment
  CHSC24836  Solanum umbelliferum M. A. Callahan 1976-4-14 16 Contra Costa 40 m ene of house at 1976 Mohawk Dr. Pleasant Hill. 106 Comment
  UC2042781  Solanum umbelliferum Barbara Ertter with Travis Columbus 1990-6-10 9109 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill, on Spengler Trail NE of Briones Peak Comment
  UC536676  Solanum umbelliferum Herbert L. Mason 1935-8-23 Contra Costa Cashion Canyon, Saint Mary's College Cashion Canyon; , Saint Mary's College Comment
  POM215197  Solanum umbelliferum D. D. Keck 1933-11-2 2619 Contra Costa 1 mile SE of Oakley. Comment
  SEINET5760775  Solanum umbelliferum Lewis S. Rose 1941-3-13 41026 Contra Costa Marsh Creek, 5 miles east of Clayton Comment
  UC63939  Solanum umbelliferum Earle Mulliken 1903-5-10 51 Contra Costa Berkeley Hills Comment
  JEPS100171  Solidago velutina subsp. californica A. Langston 2003-6-19 AL 47 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CHSC116656  Soliva sessilis 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
  JEPS75557  Sonchus asper P. F. Yorks 1975-5-15 399 Contra Costa n Briones Reservoir (ca 1.8 km s of Bear Creek Road on Hampton Road); Hampton Road Natural Reserve 190 Comment
  SEINET11807909  Sonchus asper W. Knight, Knight, I. 1988-1 6219 Contra Costa Suisun Marsh Comment
  POM181428  Sonchus oleraceus I. L. Wiggins 1930-4-18 4608 Contra Costa Jersey Island. Comment
  UC2032807 Image available Sonchus oleraceus Doran, Andrew Scott 2012-3-20 677 Contra Costa Brooks island loading dock, North side of island. Comment
  JEPS107075  Spartina densiflora Barbara Ertter, Rich Rabeler 1994-6-18 12835 Contra Costa Pt. Pinole Regional Shoreline at north end of Richmond; beach on North side Whittell Marsh. Comment
  JEPS111532  Spergularia bocconi D. G. Kelch 2005-5-5 05 .216 Contra Costa Point Pinole - Giant Marsh 3 Comment
  RSA518738  Spergularia macrotheca var. longistyla Barbara Ertter 1989-4-5 8113 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  CDA24135  Spergularia marina D. G. Kelch 2006-7-14 6 .328 Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  JEPS111531  Spergularia marina D. G. Kelch 2005-5-5 05 .215 Contra Costa Point Pinole - Giant Marsh 3 Comment
  UC1618135  Spergularia rubra Barbara Ertter with CNPS Volunteers 1996-5-8 14641 Contra Costa at head of trail from North Gate Road to Diablo Foothills Regional Park (nw foot of Mount Diablo); Mount Diablo 121 Comment
  CAS-BOT-BC213199  Sphaeralcea Paul F. Covel 1936-5-17 259 Contra Costa South of summit Mt. Diablo. Comment
  JEPS111061  Spiranthes romanzoffiana Lee Echols 2003-7-20 s.n. Contra Costa Richmond Field Station, west-central portion of Danthonia grassland N of Lark Drive 15 Comment
  JEPS21817  Stachys ajugoides J. Robison 1958-5-17 68 Contra Costa Vacant lot on 6th St. Albany 7 Comment
  JEPS112464  Stachys ajugoides var. rigida D. G. Kelch 2003-4-3 03 .364 Contra Costa Cummings Skyway 115 Comment
  RSA0068488  Stachys rigida var. quercetorum Katie Gallagher, Nick Jensen 2014-4-26 186 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  JEPS100087  Stellaria media S. O'Neil 2003-2-18 SEO 2 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC386941  Stellaria media Walter Knight 1965-3-1 909 Contra Costa Antioch dunes Comment
  UC1607662  Stellaria nitens Barbara Ertter with Michelle Seidl 1992-3-14 10917 Contra Costa e of Mount Diablo (Morgan Territory Regional Preserve); Morgan Territory Regional Preserve Comment
  UC1328148  Stellaria nitens Olive Dyer 1937-4-18 290 Contra Costa abandoned road up Madrone Canyon tributary (Wildcat Canyon); Wildcat Canyon Comment
  CAS-BOT-BC375768  Stephanomeria virgata Rimo Bacigalupi 1922-9-24 s.n. Contra Costa Mitchell Canyon, Mt. Diablo 243 Comment
  UC691445  Stephanomeria virgata subsp. pleurocarpa Mary L. Bowerman 1930-7-20 411 Contra Costa near Silver Spring (by the road); Mount Diablo Comment
  CHSC116631  Stipa pulchra Lowell Ahart; Josephine Guardino 2016-4-19 29793 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides ot 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
  UC2070615  Stipa pulchra Barbara Ertter 2002-5-16 17851 Contra Costa Richmond Field Station (UC-Berkeley). Comment
  UC10873  Streptanthus albidus subsp. peramoenus J. Burtt Davy 1893-5-13 212 Contra Costa Claremont Canyon to Fish Ranch fide fieldbook Comment
  SEINET3149300  Streptanthus glandulosus M. S. Baker 1904-6-24 sn Contra Costa Mt. Diablo, halfway to Summit Comment
  CAS-BOT-BC87098  Streptanthus glandulosus subsp. glandulosus John Thomas Howell 1942-7-19 17048 Contra Costa Northeast of Deer Flat, Mount Diablo. Comment
  UC691257  Streptanthus glandulosus subsp. glandulosus Mary L. Bowerman 1935-4-22 2878 Contra Costa North Road 2 mi from entrance; Mount Diablo 237 Comment
  RSA0027710  Stuckenia pectinata Barbara Ertter, Chris Thayer 1996-10-25 15371 Contra Costa Northwest flank of Mount Diablo. Tick Pond at arc of Falcon Road between North Gate Road and Castle Rock. 183 Comment
  RSA755536  Stuckenia pectinata Barbara Ertter, Lynne Hosley 1991-9-22 10824 Contra Costa Lafayette Reservoir in hills SW of Lafayette 137 Comment
  CAS-BOT-BC422907  Stylomecon heterophylla Paul F. Covel 1936-5-17 156 Contra Costa Mt Diablo, on trail summit-north peak. Comment
  RSA181407  Stylomecon heterophylla James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  SEINET3160771  Stylomecon heterophylla L. S. Rose 1940-4-30 40247 Contra Costa Marsh Creek, 6 mi. e. of Clayton 46 Comment
  UC635478  Stylomecon heterophylla H. L. Mason 1928-4-1 4271 Contra Costa hills n Mount Diablo (canyon back of Pittsburg); hills n of Mount Diablo Comment
  UC767113  Stylomecon heterophylla R. F. Hoover 1938-5-4 3341 Contra Costa Marsh Creek Canyon Comment
  CAS-BOT-BC422906  Stylomecon heterophylla W. W. Carruth 1900-5-1 s.n. Contra Costa Moraga Valley Comment
  CAS-BOT-BC422911  Stylomecon heterophylla John Thomas Howell 1931-5-12 6480 Contra Costa North side of Mt. Diablo Comment
  CAS-BOT-BC422918  Stylomecon heterophylla W. C. Blasdale 1891-4-26 s.n. Contra Costa Point Isabel Comment
  LA46177  Stylomecon heterophylla J. A. Ewan; 1935-5-26 9301 Contra Costa Bald Peak, San Pablo Ridge 548 Comment
  OBI9066  Styrax redivivus Neil Havlik 1968-5-19 200 Contra Costa In cultivation, Tilden Botanical Garden, Charles Lee Tilden Regional Park, E of Berkeley Comment
  UC7235  Suaeda moquinii T. J. Storer Sep 1899 Contra Costa Byron Springs Comment
  UC1119922  Symphoricarpos albus var. laevigatus N. French 1933-3-13 33 Contra Costa above Shelton School, San Pablo; San Francisco Quad. 91 Comment
  UC691750  Symphoricarpos albus var. laevigatus Mary L. Bowerman 1931-5-21 880 Contra Costa Curry-Cave Point trail; Mount Diablo 30 Comment
  CAS-BOT-BC269563  Symphoricarpos albus var. laevigatus Volney Rattan 1884-6-1 s.n. Contra Costa Unspecified Comment
  UC2012972  Symphyotrichum chilense Barbara Ertter with Lisa Schultheis 1996-9-2 15281 Contra Costa Below Knobcone Point Road along path to Devil's Slide southeast of Curry Point. Comment
  UC2046323  Symphyotrichum lanceolatum var. hesperium Barbara Ertter 2000-9-2 17520 Contra Costa Sobrante Ridge Preserve in hills southeast of El Sobrante, north of trailhead from Heavenly Ridge entrance. Comment
  UCD159501  Symphyotrichum subulatum var. parviflorum D. S. Park 2010-9-11 250 -2 Contra Costa Waterfront Rd. Growing along roadside. Disturbed. Wet. 5 Comment
  CAS-BOT-BC98331  Symphyotrichum subulatum var. parviflorum Walter Knight 1978-8-27 3196 Contra Costa Contra Loma Regional Park, at reservoir's edge. Comment
  CDA37133  Tamarix parviflora Wil Schaub 2012-4-19 PDR# 1641195 Contra Costa Lafayette; 3954 Las Arabis Drive. 0 Comment
  JEPS111741  Taraxacum officinale D. G. Kelch 2005-3-24 05 .58 Contra Costa Southern Pt. Pinole 3 Comment
  UC169716  Tetrapteron graciliflorum Katharine Brandegee April 1889 Contra Costa Antioch Comment
  UC1050709  Thalictrum aquilegifolium N. Floy Bracelin 1941-4-13 1143 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  SBBG29915  Thysanocarpus curvipes L. S. Rose 1933-4-17 33096 Contra Costa Antioch Comment
  UC11026  Thysanocarpus curvipes J. Burtt Davy 1895-4-7 886 Contra Costa Antioch Comment
  UC1543094  Thysanocarpus curvipes Donald G. Nelson 1937-3-30 465 Contra Costa on bank of creek along Marsh Creek Highway about halfway between Clayton and Byron; along Marsh Creek Highway 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-BC88254  Thysanocarpus curvipes John Thomas Howell 1934-4-8 11821 Contra Costa Marsh Creek Road southwest of Brentwood. Comment
  UC2027924  Thysanocarpus curvipes Barbara Ertter, Dan Norris 2001-4-8 17576 Contra Costa Lime Ridge Open Space east of Walnut Creek, east side of main ridge. Comment
  POM202804  Thysanocarpus curvipes var. curvipes L. S. Rose 1933-4-17 33096 Contra Costa Antioch Comment
  SEINET3166335  Thysanocarpus laciniatus P. J. Alexander, C. D. Bailey 2009-3-30 968 Contra Costa Mount Diablo State Park, 0.3 miles east of the summit of Mt. Diablo on the trail to North Peak, 8.7 miles ESE of central Walnut Creek. 1006 Comment
  UC691139  Thysanocarpus laciniatus Mary L. Bowerman 1932-3-27 1138 Contra Costa Mount Diablo , below Mitchell Rock (below Mitchell Rock) Comment
  POM143757  Thysanocarpus laciniatus C. F. Baker 1903-4-28 2809 Contra Costa Mitchell s Canyon, Mt. Diablo. Comment
  UC11040  Thysanocarpus laciniatus W. H. Brewer 1862-5-14 1097 Contra Costa Mount Diablo, Eagle Peak Comment
  UC2027741  Torilis arvensis Barbara Ertter 1996-11-24 15418 Contra Costa Southwest side of Mount Diablo, Wall Point Road across Pine Ridge ca 1/2 air miles ENE of Macedo Ranch. Comment
  JEPS100127  Torilis nodosa G. Smick 2003-5-8 GAS 186 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1123217  Torilis nodosa C. M. Belshaw 1936-5-7 2048 Contra Costa 2 miles S of San Ramon 274 Comment
  UC1795727  Torilis nodosa Barbara Ertter, Mary Bowerman 1995-6-11 14254 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, bank of Indian Creek above Indian Valley Pond, partial sun on Franciscan layer. 76 Comment
  UC692580  Toxicodendron diversilobum Mary L. Bowerman 1942-5-24 3845 Contra Costa W. Fork Sycamore Creek (Madrone Canyon) below Rock City Camp; Mt. Diablo, Madrone Canyon, W. Fork Sycamore Creek Comment
  UC1619980  Tragopogon porrifolius Barbara Ertter 1991-5-12 9812 Contra Costa s.w. corner El Cerrito (along old R.R. right-of-way between bay & salicornia marsh, Point Isabel Regional Shoreline, on San Francisco Bay); San Francisco Bay, Point Isabel Regional Shoreline Comment
  JEPS100096  Tribulus terrestris A. Langston 2003-7-9 AL 66 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SD86680  Trientalis latifolia Helen V. Witham 1972-5-10 1740 Contra Costa steep north slope, Hucleberry Trail, Oakland Comment
  SD37268  Trifolium albopurpureum McCallum 1933-4-25 3699 Contra Costa Hillside near Tassajana Comment
  JEPS99531  Trifolium albopurpureum var. albopurpureum Mary Bowerman 1978-5-4 Contra Costa Mount Diablo, Jim White Trail from Juniper Camp to Deer Flat before saddle. Comment
  UC1129956  Trifolium albopurpureum var. albopurpureum C. M. Belshaw 1936-5-8 2056 Contra Costa Mt. Diablo Mt. Diablo Quadrangle 990 Comment
  UC575674  Trifolium albopurpureum var. albopurpureum Lewis S. Rose 1935-5-16 35174 Contra Costa Mt. Diablo Comment
  UC692684  Trifolium albopurpureum var. albopurpureum Mary L. Bowerman 1931-4-4 667 Contra Costa w Turtle Rock Comment
  UC2028945  Trifolium albopurpureum var. albopurpureum Barbara Ertter 2003-4-9 18144 Contra Costa Shell Ridge Open Space on west base of Mount Diablo, Upper Buck Trail on SW side of Deer Hill. Comment
  CDA29497  Trifolium bifidum D. G. Kelch, Troy MacGregor 2009-5-1 9 .273 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  RSA184980  Trifolium bifidum L. S. Rose 1966-4-22 66030 Contra Costa Donner Canyon, north slope of Mount Diablo, south of Clayton 213 Comment
  UC2028082  Trifolium bifidum Barbara Ertter, Tony Morosco 1998-4-12 15987 Contra Costa Base of Mount Olympia on north side of Mount Diablo, NE of Olympia Trail. Comment
  CDA27902  Trifolium bifidum var. decipiens A. G. Murdock, D. G. Kelch 2004-3-19 234 Contra Costa Carquinez Strait Region; McEwen Road. Comment
  UC55887  Trifolium bifidum var. decipiens H. L. Mason 1901-4-5 1735 Contra Costa Mt. Diablo 670 Comment
  RSA691925  Trifolium bifidum var. decipiens Barbara Ertter, Chris Thayer 1993-5-7 11714 Contra Costa Ca 1/2 mile N of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land E of Tilden Park. Grazing land on lower slopes S of Wildcat Canyon Road. Comment
  UC2027805  Trifolium bifidum var. decipiens Barbara Ertter with Holly Forbes 1997-4-20 15551 Contra Costa North base of Mount Diablo, roadside on trail to Back Creek from Mitchell Canyon trailhead. Comment
  UC2028114  Trifolium campestre Barbara Ertter with Richard K. Brummitt 1998-5-6 16095 Contra Costa Donner Canyon Trail near Regency Drive trailhead, north base of Mount Diablo. Comment
  CDA28873  Trifolium ciliolatum D. G. Kelch, Jessica Kolman 2009-5-29 9 .312 Contra Costa Carquinez Strait; Pinole Valley Park, near ridgetop. Comment
  UC1607585  Trifolium ciliolatum Barbara Ertter 1991-6-1 10077 Contra Costa w Danville (in hills at n end of Rocky Ridge Trail); Las Trampas Regional Wilderness 548 Comment
  UC16457  Trifolium ciliolatum Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  UC692256  Trifolium ciliolatum Mary L. Bowerman 1933-5-2 1939 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  UC33308  Trifolium depauperatum var. amplectens W. C. Blasdale 1891-4-25 Contra Costa Point Isabel Comment
  UC630976  Trifolium depauperatum var. amplectens unknown 1928-4-19 10043 Contra Costa near Golf Links; Byron Hot Springs Comment
  CHSC22680  Trifolium depauperatum var. truncatum Robert A. Schlising 1962-4-7 2147 Contra Costa Along roads near Antioch Reservoir. Comment
  UC147173  Trifolium depauperatum var. truncatum Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  UC16522  Trifolium depauperatum var. truncatum Harley P. Chandler 1901-3-22 842 Contra Costa Concord Comment
  UCD84949  Trifolium depauperatum var. truncatum Chuck Hughes 2010-3-29 221 Contra Costa About 0.4 mile southeast of Vasco Road. 124 Comment
  POM18876  Trifolium depauperatum var. truncatum Edward L. Greene 1903-4-27 2863 Contra Costa Byron Comment
  UC2028953  Trifolium depauperatum var. truncatum Barbara Ertter 2003-3-28 18122 Contra Costa Round Valley Regional Preserve, Fox Trail ca 1/8 mile west of junction with valley trail. Comment
  JEPS65884  Trifolium fucatum E. L. Greene 1889-3-25 Contra Costa Byron Comment
  UC16536  Trifolium fucatum W. H. Brewer 1862-4-24 990 Contra Costa Camp 68 Martinez Comment
  UC16539  Trifolium fucatum J. Burtt Davy 1900-3-24 6532 Contra Costa Stege Comment
  UC400160  Trifolium fucatum Ynes Mexia 1929-4-21 2371 Contra Costa Moraga Valley Comment
  UC555454  Trifolium fucatum H. L. Mason 1929-3-31 5143 Contra Costa Briones Valley Comment
  UC692316  Trifolium fucatum Mary L. Bowerman 1932-3-23 1124 Contra Costa betw Monument and Concord (Oak Grove School junction); Mount Diablo Comment
  UCD109022  Trifolium fucatum P. B. Kennedy 1929-4-21 10229 Contra Costa Franklin Canyon Road from Concord Soldier's Monument. Comment
  UCD109123  Trifolium fucatum P. B. Kennedy 1928-4-28 10097 Contra Costa 2 miles from Tunnel, along highway. Comment
  LA205246  Trifolium gracilentum John Thomas Howell; 1933-5-14 11264 Contra Costa E of St. Mary's College Comment
  UC16558  Trifolium gracilentum W. H. Brewer 1862-4-24 989 Contra Costa Camp 68 Martinez Comment
  UC517488  Trifolium gracilentum John Thomas Howell 1933-5-14 11249 Contra Costa e St. Mary's College (hills) Comment
  CDA27955  Trifolium gracilentum var. gracilentum D. G. Kelch, A. G. Murdock 2005-4-15 5 .151 Contra Costa Carquinez Strait Region; Rodeo Creek. EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  JEPS65906  Trifolium gracilentum var. gracilentum W. L. Jepson 1925-4-26 10688 Contra Costa Black Hills Mt. Diablo Comment
  UC2028325  Trifolium incarnatum Barbara Ertter with Richard K. Brummitt 1998-5-13 16142 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, road from Somersville Road to south leg of Loughler Loop Trail. Comment
  OBI12671  Trifolium macraei G. Thomas Robbins 1959-5-17 4017 Contra Costa Just NE of the jctn of Park Blvd, Skyline Blvd, and Manzaitas Dr, at the summit of Oakland Hills, Alameda-Contra Costa County boundary 351 Comment
  UC692244  Trifolium microcephalum Mary L. Bowerman 1932-4-9 1327 Contra Costa e south spur on meridian (small ridge, Inner Black Hills); Mount Diablo Comment
  UC764715  Trifolium microdon R. F. Hoover 1939-4-25 4066 Contra Costa Richmond hills Comment
  UC692640  Trifolium obtusiflorum Mary L. Bowerman 1938-6-14 3678 Contra Costa Maple Spring Mount Diablo Comment
  UC165545  Trifolium oliganthum Chesnut and Drew 1889-4-16 Contra Costa Martinez Comment
  POM300712  Trifolium oliganthum Mary L. Bowerman 1931-4-5 680 Contra Costa South of Russelman Park. 381 Comment
  UC2029052  Trifolium oliganthum Barbara Ertter 2000-3-30 16904 Contra Costa North base of Mount Diablo, lower Mitchell Canyon ca 1.5 miles from trailhead. Comment
  UC2028950  Trifolium repens Barbara Ertter 2000-7-16 17389 Contra Costa lower Pine Creek in Diablo Foothills Regional Park. Comment
  UC1197525  Trifolium willdenovii J. P. Tracy 1900-3-24 604 Contra Costa near Stege 9 Comment
  UC867018  Trifolium willdenovii Alice Eastwood 1915-5-30 4467 Contra Costa Mt. Diablo Comment
  UC555573  Trifolium willdenovii H. L. Mason 1929-3-29 5132 Contra Costa 2 mi above Clayton (Marsh Creek Rd) Comment
  UCD109505  Trifolium willdenovii Collector unknown Date unknown s.n. Contra Costa 5 miles north of Walnut Creek on road to Contra Costa Golf Club. Comment
  UC1818873  Triglochin maritima Barbara Ertter, Brad Olson 1994-5-7 12765 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay. Edge of marsh. Comment
  UC2028570  Triglochin scilloides Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15518 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UC1134679  Trillium chloropetalum H. S. Yates 1936-3-14 5360 Contra Costa Marsh Creek Mt. Diablo Quad., Marsh Creek Comment
  JEPS73687  Triphysaria eriantha subsp. eriantha L. R. Heckard with Wm. Hirano and Ted Niehaus 1968-3-5 1756 Contra Costa along Byron-Bethany road at junction of Holey Road about 3 mi se Byron 7 Comment
  UC691565  Triphysaria eriantha subsp. eriantha Mary L. Bowerman 1932-3-12 1108 Contra Costa s of Diablo Mount Diablo (little e of Bret Harte Memorial); s of Mount Diablo Comment
  JEPS23260  Triphysaria pusilla G. Thomas Robbins 1959-4-26 4004 Contra Costa about 1/4 mi n San Pablo Oil Tank Farm (open slope about 1 mi ne of Giant) 15 Comment
  UC691567  Triphysaria pusilla Mary L. Bowerman 1935-4-12 2810 Contra Costa West (= North Rd) road immediately w of east line of section 33 Mount Diablo (across the stream from the road) 167 Comment
  UC53698  Trisetum canescens J. Burtt Davy 1900-3-24 6520 Contra Costa Pt. Richmond Comment
  JEPS112499  Triteleia hyacinthina D. G. Kelch 2004-4-26 04 .145 Contra Costa Pt. Pinole. 1 Comment
  CDA29245  Triteleia laxa D. G. Kelch 2004-5-9 4 .204 Contra Costa Carquinez Strait Region; Crockett - Upper Edwards Canyon above Crockett Boulevard. Comment
  JEPS112496  Triteleia laxa D. G. Kelch 2004-5-9 04 .204 Contra Costa Crockett - Upper Edwards Canyon, Crockett, above Crockett Blvd 160 Comment
  CAS-BOT-BC67348  Tropidocarpum capparideum Robert F. Hoover 1937-4-3 1733 Contra Costa Tracy. Comment
  UC14396  Tropidocarpum capparideum Edw. L. Greene 1889-3-23 Contra Costa Byron Springs Comment
  CAS-BOT-BC67403  Tropidocarpum gracile Alice Eastwood 1914-3-14 3824 a Contra Costa Byron Springs. Comment
  CAS-BOT-BC67411  Tropidocarpum gracile Volney Rattan s.n. Contra Costa Antioch. Comment
  UC691064  Tropidocarpum gracile Mary L. Bowerman 1931-3-29 614 Contra Costa at foot Cave Point Ridge; Mount Diablo, Riggs Canyon Comment
  CDA1419  Typha angustifolia D. G. Kelch, Andrew G. Murdock 2003-8-13 3 .105 Contra Costa Carquinez Strait Region; Martinez Marsh. Comment
  UC1818859  Typha domingensis Barbara Ertter, Kristin Ertter 1995-7-11 14483 Contra Costa W side of Mount Diablo SW of Walnut Creek, lower end of Pine Pond 182 Comment
  UCD94828  Typha domingensis Malcolm A. Nobs 1950-8-20 s.n. Contra Costa Alkaline seep area, water ca. 2 inches deep, Nortonville. 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
  UC1126325  Umbellularia californica H. S. Yates 1936-3-14 5362 Contra Costa Marsh Creek 381 Comment
  CAS-BOT-BC381828  Uropappus lindleyi Mary L. Bowerman 1935-4-17 2831 Contra Costa Mount Diablo. West road 2 miles from entrance 237 Comment
  JEPS36207  Uropappus lindleyi W. L. Jepson 1922-5-23 9669 Contra Costa n slope Mt. Diablo; n slope Mt. Diablo Comment
  UC691469  Uropappus lindleyi Mary L. Bowerman 1931-4-5 682 Contra Costa s Russelman Park (Mount Diablo); Mount Diablo 381 Comment
  UC1048164  Uropappus lindleyi Univ. of Calif., Division of Genetics 1937-1-1 382 Contra Costa Comment
  UC1818992  Uropappus lindleyi Barbara Ertter, Lisa Schultheis 1995-4-27 14010 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
  UC521771  Urtica dioica subsp. holosericea Joseph Andorfer Ewan 1933-10-15 8018 Contra Costa sw slope Mount Diablo Mount Diablo Comment
  UC692059  Urtica dioica subsp. holosericea Mary L. Bowerman 1932-11-25 1665 Contra Costa Mount Diablo, Silver Spring Silver Spring; Mount Diablo, Silver Spring Comment
  UC635677  Utricularia gibba H. L. Mason 1929-9-21 5441 Contra Costa 1 mi. n. from junction of Borden Hwy. and rd. to Antioch Comment
  UC1050826  Verbascum N. Floy Bracelin 1941-6-1 1346 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1005914  Verbascum phoeniceum N. Floy Bracelin 1943-5-2 2498 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  POM312406  Verbena hastata Malcolm A. Nobs, S. Galen Smith 1949-7-8 942 Contra Costa Otto's Black Bass Resort, 4 miles north of Kingston. Comment
  UC2029170  Verbena lasiostachys var. scabrida Barbara Ertter 2000-7-16 17409 Contra Costa Pine Creek on WNW base of Mount Diablo. Comment
  CDA9278  Verbena scabra D. G. Kelch 2002-7-15 2 .006 Contra Costa CA Delta; Old San Joaquin River channel, E of Brentwood. San Joaquin