Search Results — 2000 specimen records retrieved (1361 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UC1719693  Acacia longifolia Barbara Ertter, Brad Olson 1994-5-7 12743 Contra Costa S end of Point Molate Beach Park, edge of San Francisco Bay N of Richmond to San Rafael bridge Comment
  UC1779711  Acacia verticillata Rudolf Schmid 1997-5-21 1997 -12 Contra Costa Hillside Natural Area, El Cerrito; NW of King Ct. entrance. 175 Comment
  UC1050843  Acanthus mollis var. latifolius N. Floy Bracelin 1942-6-14 2133 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC331615  Acer macrophyllum Peter H. Raven; H. L. Mason; R. Ornduff; et al. 1957-4-11 10621 Contra Costa Curry Canyon, 3.4 miles S of Recreation Ground Comment
  UC1050967  Acer macrophyllum N. Floy Bracelin 1941-4-8 2647 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UCSB11596  Acer macrophyllum Grah, Nancy 1962-4-14 Contra Costa Corner of Lombardy Lane and Sleepy Hollow Lane, Orinda 152 Comment
  POM284638  Acer negundo subsp. californicum Lyman D. Benson 1931-3-18 2656 Contra Costa Walnut Creek. 61 Comment
  CAS-BOT-BC334180  Acer negundo var. californicum Annetta Carter 1937-3-28 1227 Contra Costa Creek bank, Moraga Valley, 2.5 miles north of Moraga 182 Comment
  CAS-BOT-BC334185  Acer negundo var. californicum Alice Eastwood 1914-2-24 3734 Contra Costa Antioch Comment
  UC1050367  Acer palmatum N. Floy Bracelin 1942-7-4 2183 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  RSA603777  Achillea millefolium Joseph A. Ewan 1936-5-3 9508 Contra Costa Wildcat Creek Comment
  CAS-BOT-BC29885  Achyrachaena mollis L. Kellogg; Brannan 1870-4-20 s.n. Contra Costa Antioch Comment
  RSA15448  Achyrachaena mollis Alice Eastwood, J. T. Howell 1936-4-19 s.n. Contra Costa Nortonville. Comment
  UC134230  Achyrachaena mollis Katharine Brandegee 1907-5-3 Contra Costa near Antioch Comment
  UCD128411  Achyrachaena mollis P. B. Kennedy 1925-4-26 s.n. Contra Costa Mt. Diablo, below road to Country Club reservoir. Comment
  UCD32385  Achyrachaena mollis Beecher Crampton 1950-4-22 529 Contra Costa above Sand Creek, on hills to north above Lone Tree Valley 106 Comment
  SBBG40322  Acmispon americanus W. J. Dress 1951-7-3 3470 Contra Costa a few mi S of Moraga 152 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
  RSA498006  Adenostoma fasciculatum Robert F. Hoover 1939-04 20470 Contra Costa Head west branch Markley Canyon 305 Comment
  UC691158  Adenostoma fasciculatum Mary L. Bowerman 1933-2-4 1689 Contra Costa flats e. of Meridian-North Peak divide Mt. Diablo 822 Comment
  UC691159  Adenostoma fasciculatum Mary L. Bowerman 1930-6-5 256 Contra Costa w. (North Rd.) 5.8 mi. from entrance Mt. Diablo Comment
  SEINET11906748  Adenostoma fasciculatum E. L. Core 1952-1 s.n. Contra Costa Mt. Diablo Comment
  RSA453156  Adenostoma fasciculatum var. fasciculatum Bonnie C. Templeton 1962-6-20 s.n. Contra Costa Mount Diablo Comment
  CDA19069  Aegilops triuncialis D. Petersen 2001-6-2 s.n. Contra Costa San Francisco Bay Area; NW corner of Camp Parks Military Reservation E of Dublin, ~ 2000 ft E of Dougherty Rd. 198 Comment
  CAS-BOT-BC206881  Aesculus californica Barrett Anderson 1987-4-30 3494 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD. 125 Comment
  JEPS40101  Aesculus californica W. L. Jepson 1923-6-10 9984 Contra Costa Mt. Diablo Comment
  JEPS75460  Aesculus californica P. F. Yorks 1973-5-25 100 Contra Costa ca 1.7 mi s Bear Creek Rd on Hampton Rd in Hampton Rd Natural Reserve (n of Briones Reservoir) 180 Comment
  JEPS99561  Agoseris grandiflora Mary Bowerman 1995-7-2 Contra Costa Mount Diablo, (probably Back Canyon or foot trail to Donner Canyon). Comment
  RSA31206  Agoseris grandiflora Joseph A. Ewan 1934-4-8 8759 Contra Costa 10 mi. from Clayton on Livermore road, head Hog Canyon 640 Comment
  JEPS111712  Agoseris grandiflora var. grandiflora D. G. Kelch 2004-5-9 04 .211 Contra Costa Crockett - Eckley Hills north of Bull Valley Staging Area 13 Comment
  UC202932  Agoseris grandiflora var. grandiflora Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  CAS-BOT-BC15427  Agoseris grandiflora var. grandiflora L. R. Abrams 1921-5-25 8042 Contra Costa Mt. Diablo at spring 4.5 from summit Comment
  CAS-BOT-BC22973  Agoseris heterophylla Mary L. Bowerman 1933-5-8 2013 Contra Costa Mt. Diablo. Fossil Ridge near crest, north side by side road. Comment
  UC29357  Agoseris heterophylla var. heterophylla H. M. Hall 1901-4-5 1726 Contra Costa Mt. Diablo; San Francisco Bay region Comment
  CAS-BOT-BC46098  Agoseris hirsuta John Thomas Howell 1925-12-6 1611 Contra Costa Ridge between Redwood Canon and San Leandro Canon, Oakland Hills Comment
  JEPS36280  Agoseris retrorsa W. L. Jepson 1921-5-22 9208 Contra Costa summit Mt. Diablo Comment
  RSA0029681  Agrostis avenacea Barbara Ertter, Tony Morosco 1998-9-18 16425 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, north quarry area [subsequently developed]. 122 Comment
  UC2028508  Agrostis avenacea Barbara Ertter with Tony Morosco 1998-9-18 16425 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, north quarry area [subsequently developed] Comment
  CAS-BOT-BC127340  Agrostis exarata R. Bacigalupi 1922-9-24 s.n. Contra Costa Mitchell Canyon, north base of Mount Diablo. 213 Comment
  UC2028498  Agrostis exarata Barbara Ertter 1999-6-12 16711 Contra Costa Black Hawk Ridge road on south side of Mount Diablo, road crossing at confluence of NE and E forks of Sycamore Creek 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
  JEPS107127  Agrostis hallii Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14221 Contra Costa Mt. Diablo southeast of Walnut Creek, north of Curry Point. 518 Comment
  UC1795795  Agrostis hallii Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14221 Contra Costa Mt. Diablo southeast of Walnut Creek, north-facing slope north of Curry Point, grassy semishade at edge of oak woodland. 518 Comment
  RSA0029673  Agrostis hallii Barbara Ertter, Dan Norris 1998-7-18 16229 Contra Costa Black Hawk Ridge Road below Knobcone Point Road, south side of Mount Diablo. 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
  UCD150904  Agrostis stolonifera James A. Neilson Jr. 1972-10-1 3513 Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 1 Comment
  JEPS99493  Agrostis viridis Mary Bowerman 1975-9-14 Contra Costa Mount Diablo, near Chase Pond. Comment
  JEPS99483  Aira caryophyllea Mary Bowerman 1978-5-14 Contra Costa Mount Diablo, Eagle Peak Old Mines trail. Comment
  RSA760665  Aira caryophyllea var. capillaris William J. Ferlatte, L. Maynard Moe 1970-4-27 1231 Contra Costa San Francisco Bay, Red Rock Island. Comment
  UC2028390  Alisma lanceolatum Barbara Ertter with Tony Morosco 1998-7-11 16375 Contra Costa Antioch Regional Shoreline under south end of Antioch Bridge, edge of water on riprap Comment
  UC1618271  Alisma plantago-aquatica Barbara Ertter 1990-9-10 9638 Contra Costa s of Martinez (Briones Regional Park, Briones Hills, at margin of main Sindicich Lagoon); Briones Regional Park, Briones Hills 365 Comment
  UC692095  Alisma plantago-aquatica Mary L. Bowerman 1933-9-9 2429 Contra Costa Frog Pond Mount Diablo Comment
  CAS-BOT-BC445382  Alisma plantago-aquatica Mary L. Bowerman 1935-9-13 3331 Contra Costa Mount Diablo. Chase Pond Comment
  UCR197913  Alisma triviale Beecher Crampton 1950-6-10 589 Contra Costa 1 mile north of Richmond, along Santa Fe Railroad 15 Comment
  CDA23224  Allenrolfea occidentalis T. C. Fuller 1965-11-24 14321 Contra Costa South side of Byron Hot Springs Road, 0.6 mile southwest of Byron-Tracy Highway, ca. 1 mile southwest of Byron. 0 Comment
  UC116546  Allenrolfea occidentalis K. Brandegee Oct. 1887 Contra Costa Antioch Comment
  UCD33561  Allenrolfea occidentalis Beecher Crampton 1970-3-10 8536 Contra Costa 1 mile S of Byron, Byron Hot Springs road. Comment
  CAS-BOT-BC226  Allium breweri William Henry Brewer 1862-5-7 1060 Contra Costa Summit of Monte Diablo [Mount Diablo] Comment
  UC1133799  Allium falcifolium C. M. Belshaw 1936-5-8 2067 Contra Costa se slope of Mt. Diablo Mt. Diablo Quadrangle, Mt. Diablo Comment
  UC188708  Allium falcifolium J. W. Congdon 1896-5-30 Contra Costa Summit Mt. Diablo Mt. Diablo Comment
  UC843254  Allium falcifolium Alice Eastwood 1915-5-30 4531 Contra Costa Mt. Diablo Comment
  JEPS112489  Allium neapolitanum D. G. Kelch 2004-4-11 04 .73 Contra Costa Crockett - Crolona Heights Hillside above Rolf Drive. Lower Crolona heights 15 Comment
  CAS-BOT-BC472778  Allium neapolitanum Walter Knight 1979-4-12 3448 Contra Costa Grangers Wharf, Martinez Regional Shoreline Comment
  UC494231  Allium serra Anna E. Ehlers 1920-4-25 571 Contra Costa Mt. Diablo Comment
  UC72519  Allium serra Harley P. Chandler 1901-3-22 852 Contra Costa Martinez Comment
  UC2062653  Allium serra Barbara Ertter with Dan Norris 2001-4-8 17589 Contra Costa Lime Ridge Open Space east of Walnut Creek, path northwest of summit installation. Comment
  CAS-BOT-BC476608  Allium unifolium Mary L. Bowerman 1933-6-3 2250 Contra Costa Small spring at bend below Silver Spring. Comment
  CAS-BOT-BC476609  Allium unifolium Mary L. Bowerman 1931-4-19 750 Contra Costa Mitchell Canyon: Small colony near upper end of road. Comment
  UC2027774  Allium unifolium Barbara Ertter with Holly Forbes 1997-4-20 15566 Contra Costa North base of Mount Diablo, trail to Back Creek from Mitchell Canyon trailhead. Comment
  UCD118009  Allophyllum divaricatum P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  JEPS108322  Allophyllum gilioides David Gowen 2005-3-1 169 Contra Costa Mt. Diablo State Park. Just east of Pioneer Horse Camp and south of Green Ranch Road. 853 Comment
  CAS-BOT-BC170927  Alnus rhombifolia Mary L. Bowerman 1931-10-13 1058 Contra Costa Mount Diablo. Alamo Canyon 259 Comment
  JEPS58619  Alnus rhombifolia W. L. Jepson 1899-2-26 Contra Costa Wild Cat Creek Berkeley Hills Comment
  RSA181895  Alopecurus myosuroides George Murray 1964-5-24 s.n Contra Costa Near San Pablo Dam Comment
  UC2027840  Amaranthus blitoides Barbara Ertter 2000-9-30 17536 Contra Costa West side Mount Diablo, Briones-Mount Diablo Trail ca 1 mile NW of Macedo Ranch. Comment
  CAS-BOT-BC55589  Ambrosia psilostachya Walter Knight; Joanne Dean 1978-8-14 3115 Contra Costa Browns Island Comment
  CAS-BOT-BC55590  Ambrosia psilostachya Walter Knight 1965-9-7 1167 Contra Costa San Joaquin River at Antioch sand dunes Comment
  UC1584662  Ambrosia psilostachya Jerry Powell 1990-8-29 1585 Contra Costa Antioch National Wildlife Refuge Comment
  CAS-BOT-BC55591  Ambrosia psilostachya Peter Rubtzoff 1954-9-14 1762 Contra Costa Lower San Joaquin River, east of Antioch (sand dune area) Comment
  UC12066  Amelanchier utahensis W. H. Brewer 1862-5-1 1036 Contra Costa s of Camp 69 Comment
  CAS-BOT-BC142927  Amelanchier utahensis H. E. McMinn 1923-6-13 231 Contra Costa From 6 mi. n. of Camp Frost on Livermore & Mt. Hamilton Road Comment
  UCD33151  Ampelodesmos mauritanicus Beecher Crampton 1966-10-18 7816 Contra Costa Contra Costa County, Kensington, Berkeley Hills Blake Garden, UC Berkeley Dept. of landscape architecture. Comment
  CHSC21836  Amsinckia Robert A. Schlising 1962-4-7 2150 Contra Costa In grass of roadside near Antioch Reservoir. Comment
  CAS-BOT-BC222226  Amsinckia Alice Eastwood; John Thomas Howell 1936-4-19 2131 Contra Costa Nortonville Comment
  SEINET11792519  Amsinckia grandiflora P. Del Monte 1976-1 Contra Costa Comment
  CDA29055  Amsinckia intermedia D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .225 Contra Costa Byron Airport. Comment
  SEINET12479829  Amsinckia intermedia R. R. Halse 1988-2-20 3541 Contra Costa Along State Hwy 4, near its junction with Balfour Road, S edge of Brentwood. 23 Comment
  UC691398  Amsinckia intermedia Mary L. Bowerman 1931-4-4 642 Contra Costa near w entrance Mount Diablo (North gate) Comment
  JEPS61163  Amsinckia intermedia Elsa Kraeger 1926-3-7 Contra Costa Mount Diablo, on raod from Toll Gate to summit of the mountain Mount Diablo Comment
  JEPS20866  Amsinckia lunaris W. L. Jepson 1899-4-19 21083 Contra Costa Las Trampas Ridge Comment
  JEPS85241  Amsinckia lunaris Roy E. Buck 1986-4-14 539 Contra Costa ca. 7 air km. n.-n.w. Orinda (n. of Briones Res., w. side Hampton Rd., cyn draining n. to Pinole Cr., ca. 0.25 km. n. of div. separat. Pinole Cr. & Bear Cr. watersheds) 228 Comment
  UC56850 Image available Amsinckia lunaris H. M. Hall 1900-3-24 Contra Costa Briones Valley Region of San Francisco Bay; Briones Valley, region of San Francisco Bay Comment
Read comments
Jan 7 2013
  UC762022  Amsinckia lunaris R. F. Hoover 1938-4-20 3178 Contra Costa lower end San Pablo Resevoir Comment
  RSA0029365  Amsinckia lunaris Barbara Ertter, Chris Thayer 1993-5-7 11707 Contra Costa Ca 0.5 mile N of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land E of Tilden Park. 457 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
  UC24601 Image available Amsinckia lycopsoides J. Burtt Davy 1895-4-7 887 Contra Costa Antioch; ; Antioch, Contra Costa Co. Comment
  UCD119723  Amsinckia lycopsoides R. Bacigalupi; Francia Chisaki 1957-3-27 910 Contra Costa Rolling plain along Somersville road between Borden Highway and Southern Pacific Railway, 0.75 mile west of Antioch. 19 Comment
  CDA9450  Amsinckia menziesii D. G. Kelch 1992-3-21 1822 -A Contra Costa 2.5 mi. SE of Byron; along RR tracks, N of junction of Holey Rd. and Byron Hwy. 0 Comment
  CAS-BOT-BC26818  Amsinckia oxycarpa Alice Eastwood 1921-4-18 10312 a Contra Costa Antioch Comment
  UC24591 Image available Amsinckia tessellata Brewer 1862-1 1119 Contra Costa near Mt. Diablo; ; near Mt. Diablo Comment
  JEPS68948  Amsinckia tessellata var. tessellata Edward Lee 1935-3-10 1276 Contra Costa w watershed of Kirker Creek (Kirker Pass, Donovan Road); Kirker Pass Comment
  UC485559  Ancistrocarphus filagineus Thomas Howell 1883-5-1 Contra Costa Antioch Comment
  CAS-BOT-BC45253  Ancistrocarphus filagineus Mary L. Bowerman 1935-4-17 2832 a Contra Costa Mount Diablo, West road 2 miles from entrance, just west of chaparral. 243 Comment
  UC35144  Androsace elongata subsp. acuta W. C. Blasdale 1896-2-28 Contra Costa w Clayton (Clayton) Comment
  CAS-BOT-BC400255  Anemopsis californica A. D. E. Elmer 1903-6-1 4870 Contra Costa Walnut Creek Comment
  UCD137881  Anemopsis californica Walter Knight; Irja Knight 1977-6-18 s.n. Contra Costa 2 miles from Dutch Slough on Jensey Island Road, near Oaklay. Comment
  UC692565  Angelica californica Mary L. Bowerman 1931-6-2 915 Contra Costa Mount Diablo, Gregory Ranch Road Mount Diablo; , Gregory Ranch Road 518 Comment
  CHSC75049  Anthemis cotula Roger Thom 1987-5-27 24 Contra Costa 1900 block of Olympic Blvd. (at Newell Ave.), Walnut Creek. 15 Comment
  JEPS99545  Anthriscus caucalis Mary Bowerman 1995-7-2 Contra Costa Mount Diablo, probably Back Canyon or foot trail to Donner Canyon. Comment
  UC691891  Anthriscus caucalis Mary L. Bowerman 1932-5-6 1413 Contra Costa Mitchell Canyon floor Mitchell Canyon; Mount Diablo Comment
  NY67842  Antirrhinum elmeri A. D. E. Elmer 06 1903 4809 Contra Costa Mt. Diablo Comment
  UC1795735  Antirrhinum majus Barbara Ertter, Brad Olson 1994-5-7 12744 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  JEPS14826  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Rimo Bacigalupi with L. R. Heckard 1956-7-17 5732 Contra Costa just n Hampton Road summit (on Pinole Creek side of grade from Briones Valley School (not Briones Valley!) to Bear Creek) 220 Comment
  UC2029066  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Barbara Ertter 2000-7-29 17438 Contra Costa Donner Basin on north side of Mount Diablo, opening on lower end of Middle Trail between Meridian Ridge Road and first stream crossing Comment
  CDA15262  Apocynum cannabinum G. F. Hrusa, D. Crowe 1998-5-8 14393 Contra Costa Sacramento Delta; Along Antioch-Pittsburg highway adjacent to E end of Dow Chemical property in Pittsburg. Comment
  UC1594204  Apocynum cannabinum Jerry Powell 1991-6-11 1606 Contra Costa Antioch Nat'l Wildlife Refuge Comment
  UC692207  Aquilegia eximia Mary L. Bowerman 1933-6-2 2331 Contra Costa Donner Canyon Mount Diablo Comment
  JEPS112056  Aquilegia formosa A. G. Murdock 2004-4-30 254 Contra Costa Vaca Canyon On steep south slope along road 165 Comment
  UC1614150  Aquilegia formosa Charles M. Belshaw 1935-6-12 691 Contra Costa about 10 mi n of Livermore (on Livermore-Clayton Road just n of crest); Livermore-Clayton Road 609 Comment
  UC692184  Aquilegia formosa Mary L. Bowerman 1931-5-23 896 Contra Costa Alamo Canyon Mount Diablo Comment
  CAS-BOT-BC128689  Arbutus menziesii Alice Eastwood 1922-3-17 11081 Contra Costa Mt. Diablo Comment
  UC692481  Arbutus menziesii Mary L. Bowerman 1931-3-21 598 Contra Costa Sycamore Canyon, west fork Sycamore Canyon; Mount Diablo, Sycamore Canyon 396 Comment
  UC615582  Arceuthobium campylopodum Beryl O. Schreiber 1933-10-5 937 Contra Costa rd to Mt Diablo Comment
  UCSB21792  Arctostaphylos andersonii Keefe, Joseph 1967-3-20 Contra Costa Along Huckleberry Trail, 0.5 mile east of Skyline Boulevard, near intersection with Grizzly Peak Boulevard, east of Berkeley 274 Comment
  UCR58375  Arctostaphylos andersonii var. auriculata Walter Knight, I. Knight 1980-6-14 3744 Contra Costa Original from Mt. Diablo State Park (Now in Tilden Regional Park Botanic Garden) Comment
  RSA21875  Arctostaphylos andersonii var. pallida Joseph A. Ewan 1934-1-7 8162 Contra Costa Head of San Leandro Creek above Oakland. Comment
  CAS-BOT-BC24107  Arctostaphylos auriculata L. R. Abrams 1900-10-8 4348 Contra Costa Mt. Diablo 609 Comment
  CAS-BOT-BC24109  Arctostaphylos auriculata Alice Eastwood; John Thomas Howell 1936-4-19 2130 Contra Costa Nortonville Comment
  CAS-BOT-BC24111  Arctostaphylos auriculata Walter Knight; Irja Knight 1968-2-19 2276 Contra Costa Sandmine ravine in Somersville Comment
  CAS-BOT-BC24117  Arctostaphylos auriculata C. F. Baker 1903-5-31 3161 Contra Costa Mt. Diablo Comment
  RSA164647  Arctostaphylos auriculata Percy C. Everett 1963-11-19 24549 Contra Costa Mt Diablo. 457 Comment
  RSA622482  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27598 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments
Jan 30 2013
  RSA622483  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27593 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments
Jan 30 2013
  RSA622487  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27599 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments
Jan 30 2013
  SBBG28871  Arctostaphylos auriculata L. S. Rose 1934-2-28 34039 Contra Costa S slope of Mt Diablo, 8 mi NE of Danville Comment
  UC1200413  Arctostaphylos auriculata Edward Lee 1936-1-12 1713 Contra Costa w-facing slope immediately s Nortonville Comment
  UC1485916  Arctostaphylos auriculata H. Stout and T. Wainwright 1980-3-27 2 Contra Costa 1 mi s Morgan Territory Rd. (on ridge-top); Mallory Ranch 609 Comment
  UC549568  Arctostaphylos auriculata J. E. Adams 1934-3-19 672 Contra Costa Mt. Diablo Comment
  UC549569  Arctostaphylos auriculata J. E. Adams 1934-10-6 852 Contra Costa Rock City Mt. Diablo Comment
  UC614738  Arctostaphylos auriculata Beryl O. Schreiber 1934-2-22 943 Contra Costa Devil's Slide Canyon Mount Diablo Comment
  UC697792  Arctostaphylos auriculata Mary L. Bowerman 1932-9-5 1546 Contra Costa near fire trail which runs s from large spur (on meridian) heading into Sycamore Canyon; Mount Diablo, Inner Black Hills Comment
  UCD50265  Arctostaphylos auriculata Roman Gankin 1968-11-14 1308 Contra Costa Ca. 300 yds. above road at Somersville. Comment
  CAS-BOT-BC23561  Arctostaphylos crustacea W. W. Carruth 1902-3-1 s.n. Contra Costa Pine Ridge, Moraga Valley Comment
  CAS-BOT-BC23597  Arctostaphylos crustacea W. W. Carruth 1902-3-1 s.n. Contra Costa Pine Ridge, Moraga Valley Comment
  CDA33795  Arctostaphylos crustacea D. G. Kelch 2011-2-4 11 .017 Contra Costa Bear Creek Road west of Orinda near of Briones Park. 0 Comment
  CAS-BOT-BC23556  Arctostaphylos crustacea Lewis S. Rose 1954-3-1 54004 Contra Costa Oakland Hills above Redwood Canyon 609 Comment
  CAS-BOT-BC23558  Arctostaphylos crustacea C. Hart Merriam 1919-11-2 s.n. Contra Costa Hill above Moraga Valley Comment
  CAS-BOT-BC23560  Arctostaphylos crustacea John Thomas Howell 1930-6-15 5311 Contra Costa Rocky north-west slope of summit of Grizzley Peak, Berkeley Hills. Comment
  CAS-BOT-BC23589  Arctostaphylos crustacea Steve Abbors 1980-3-24 s.n. Contra Costa Chamise Trail. Las Trampas Regional Wilderness, Las Trampas Ridge Comment
  CAS-BOT-BC23590  Arctostaphylos crustacea Walter Knight; Irja Knight 1980-3-16 3715 Contra Costa Sobrante Ridge between Heavenly Ridge Lane and Castro Ranch road. Comment
  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
  CAS-BOT-BC23599  Arctostaphylos crustacea Stephen W. Edwards 1981-1-5 1001 Contra Costa Browne's Regional Park, on ridge facing Russell Tree Farm. Comment
  CAS-BOT-BC23600  Arctostaphylos crustacea Steve Abbors 1980-3-24 s.n. Contra Costa Chamise Trail. Las Trampas Ridge, Las Trampas Regional Wilderness. Comment
  UCSB26113  Arctostaphylos crustacea subsp. crustacea Lee, Edward 1935-12-28 Contra Costa Western end of Las Trampas Ridge; (T1S, R2W, Sect. 22, Concord Quadrangle) 426 Comment
  JEPS38706  Arctostaphylos glauca W. L. Jepson 7592 Contra Costa Donner Canyon Mt. Diablo 243 Comment
  CAS-BOT-BC27256  Arctostaphylos laevigata Alice Eastwood 1922-3-17 11082 Contra Costa Mt. Diablo Comment
  RSA632816  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27580 Contra Costa Above Rock City, Mt. Diablo. 540 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
  CAS-BOT-BC38880  Arctostaphylos manzanita subsp. laevigata H. E. McMinn 1923-3-6 876 c Contra Costa Mt. Diablo Comment
  JEPS124461  Arctostaphylos manzanita subsp. laevigata Daniel Slakey with CNPS Volunteers 2015-6-29 137 Contra Costa Wall Point Rd, along a roughly 1 km stretch of road just west of Wall Point. Comment
  JEPS19874  Arctostaphylos manzanita subsp. laevigata W. L. Jepson 1922-7-14 9736 Contra Costa Mount Diablo, Head of Sycamore Creek Head of Sycamore Creek; Mount Diablo, Head of Sycamore Creek Comment
  RSA140022  Arctostaphylos manzanita subsp. laevigata H. A. Jensen 1938-10-27 451 Contra Costa Head of Curry Canyon 518 Comment
  RSA164649  Arctostaphylos manzanita subsp. laevigata Percy C. Everett 1963-11-19 24499 Contra Costa Mt Diablo. 457 Comment
  UC1200412  Arctostaphylos manzanita subsp. laevigata Edward Lee 1936-1-12 1712 Contra Costa canyon bottom immediately s Nortonville Comment
  UC1389137  Arctostaphylos manzanita subsp. laevigata H. A. Jensen 1938-10-27 452 Contra Costa head of Curry Canyon Mt. Diablo Quadrangle 518 Comment
  UC549606  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 675 Contra Costa Mount Diablo Comment
  CAS-BOT-BC24381  Arctostaphylos manzanita subsp. manzanita Walter Knight; Irja Knight 1980-3-16 3713 Contra Costa Opposite 5996 Skyline Drive, El Sobrante. Comment
  CAS-BOT-BC24387  Arctostaphylos manzanita subsp. manzanita Alice Eastwood; John Thomas Howell 1936-4-19 2129 Contra Costa Nortonville. Comment
  CAS-BOT-BC24389  Arctostaphylos manzanita subsp. manzanita Walter Knight; Irja Knight 1980-3-16 3713 Contra Costa Opposite 5996 Skyline Drive, El Sobrante. 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-BC24391  Arctostaphylos manzanita subsp. manzanita Walter Knight 1979-12-9 3717 Contra Costa Morgan Territory Regional Land Bank. Above rimrock of Marsh Creek Canyon. Comment
  CAS-BOT-BC24397  Arctostaphylos manzanita subsp. manzanita H. E. McMinn 1923-3-6 876 Contra Costa Sycamore Canon. Comment
  CAS-BOT-BC24399  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1938-6-24 3693 Contra Costa Mount Diablo, Road 8.9 mi. from North Gate: crest or ridge above road (below Pines Picnic Area). 792 Comment
  CAS-BOT-BC24400  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1933-3-25 1765 Contra Costa Mt. Diablo. Diablo Stock Farm (Stone Valley) Canyon, w. fork: toward top of s. face. Also shrubs on n. face of Pine Comment
  UC1120870  Arctostaphylos pallida R. W. Lundh 1933-1-12 188 Contra Costa 1/2 mi s Round Mt.; Concord Quadrangle 609 Comment
Read comments
Mar 14 2007
  JEPS42609  Arctostaphylos tomentosa subsp. crustacea W. L. Jepson 1944-8-5 27547 Contra Costa Moraga Ridge Oakland Hills Comment
  JEPS46272  Arctostaphylos tomentosa subsp. crustacea W. L. Jepson 1943-6-19 20850 Contra Costa Moraga Ridge Comment
  JEPS48826  Arctostaphylos tomentosa subsp. crustacea H. M. Wheeler 1944-1-16 27507 Contra Costa Moraga Ridge Oakland Hills Comment
  UC1120126  Arctostaphylos tomentosa subsp. crustacea R. C. Wilson 1935-3-27 149 Contra Costa 1 mi s Cave Pt.; Mount Diablo Quadrangle Comment
  UC549463  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 630 Contra Costa Moraga Ridge Comment
  UC549469  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 627 Contra Costa Moraga Ridge Comment
  UC549472  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 625 Contra Costa Moraga Ridge Comment
  UC876405  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 624 Contra Costa Moraga Ridge Comment
  UCR58384  Arctostaphylos tomentosa subsp. crustacea Walter Knight 1980-3-6 s.n. Contra Costa Redwood Regional Park; East Ridge Trail 396 Comment
Read comments
Aug 10 2011
  UC2046014  Arctostaphylos viscida subsp. mariposa Stephen W. Edwards July, 2012 s.n. Contra Costa Pleasant Hill, along Taylor Blvd. Comment
  CDA31089  Argyranthemum foeniculaceum D. G. Kelch, Dick Moe, Doug Stone 2001-6-3 01 .-23 Contra Costa East Bay.; Brooks Island. Comment
  UC2032801 Image available Argyranthemum foeniculaceum Doran, Andrew Scott 2012-3-20 671 Contra Costa Brooks island loading dock, North side of island. Comment
  CAS-BOT-BC400402  Aristolochia californica H. M. Hall 1899-4-23 s.n. Contra Costa Lauterwasser Creek Comment
  HSC3262  Aristolochia californica Greg Bos 1963-3-9 28 Contra Costa Pinole Valley Rd., SE of Pinole 61 Comment
  UC1606406  Aristolochia californica Barbara Ertter 1993-4-2 11476 Contra Costa below Vista Rd. w. of Crockett (midslope, Carquinez Regional Park); Carquinez Regional Park Comment
  SEINET10669563  Arnica cordifolia John G. Lemmon 1872-1 Lemmon s.n. Contra Costa Summit of Mount Diablo. Comment
  CAS-BOT-BC82385  Arnica discoidea Paul F. Covel 1938-5-8 1460 Contra Costa Summit Mt. Diablo Comment
  UC29618  Arnica discoidea F. P. McLean 1875-3-1 Contra Costa Mt. Diablo Comment
  SEINET9290427  Artemisia californica Unknown 1959-10-19 5466 Contra Costa Contra Costa Comment
  CDA42352  Artemisia douglasiana D. G. Kelch, Vince Guise 2012-7-26 12 .238 Contra Costa Wildcat Canyon Park, Alvarado Unit. Comment
  UC1584696  Artemisia douglasiana Jerry Powell 1990-8-29 1591 Contra Costa Antioch National Wildlife Refuge 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
  UC543763  Asarum caudatum Herbert L. Mason 1925-9-27 2236 Contra Costa San Leandro Canyon (Redwood Canyon); Oakland Hills Comment
  JEPS5091  Asclepias californica Mary L. Bowerman 1935-5-1 2944 Contra Costa 4.4 mi from entrance (West road); Mount Diablo 381 Comment
  RSA0031304  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. 427 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
  RSA0029364  Asclepias fascicularis Barbara Ertter, Mary L. Bowerman, Lisa Schultheis 1996-7-5 14916 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  UC2013060  Asclepias fascicularis Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14916 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek Comment
  UC691841  Asclepias fascicularis Mary L. Bowerman 1935-6-28 3162 Contra Costa Old Government Trail Mount Diablo 518 Comment
  UCSB22010  Asclepias fascicularis Olson, Glen 1968-7-5 Contra Costa 0.1 mile off the end of Broadmore Court, 0.2 mile north of its junction with St. Mary's Rd. Comment
  SEINET3127336  Astragalus asymmetricus M. K. Curran 1886-5-18 sn Contra Costa Antioch Comment
  RSA480534  Astragalus didymocarpus Katherine Brandegee 1889-05 s.n. Contra Costa Antioch Comment
  UC13345  Astragalus didymocarpus W. H. Brewer 1862-5-19 1115 Contra Costa n (Kirker Pass?) Kirker's Pass; n of Kirker's Pass Comment
  CAS-BOT-BC177882  Astragalus didymocarpus var. didymocarpus M. K. C. 1886-5-1 s.n. Contra Costa Antioch Comment
  UC83409  Astragalus gambelianus Katharine Brandegee april 1889 Contra Costa Antioch Comment
  UC1949066  Astragalus gambelianus Barbara Ertter 2005-5-8 18566 Contra Costa Mount Diablo State Park, Burma Road below Moses Rock Spring on Long Ridge Comment
Read comments
Feb 13 2016
  CAS-BOT-BC66048  Athyrium filix-femina var. cyclosorum M. Beene 1981-4-11 011 Contra Costa Lafayette Res. eastern side of park ca. 100 m W. from main path Comment
  CAS-BOT-BC17456  Athysanus pusillus John Thomas Howell 1931-3-10 5754 Contra Costa East side of Mount Diablo 7 miles from Clayton on Livermore Road. Comment
  UC1301000  Athysanus pusillus Helen K. Sharsmith 1963-3-3 5191 Contra Costa e of St. Mary's College (near Moraga, Las Trampas Canyon); San Francisco Bay Region, Las Trampas Canyon 259 Comment
  JEPS108320  Athysanus pusillus David Gowen 2005-2-23 168 Contra Costa Mt. Diablo State Park. Juniper Trail just south of Silver Spring. Comment
  RSA739722  Atriplex argentea subsp. expansa John Dittes 2006-10-26 1414 Contra Costa San Joaquin Valley (foothills near NW edge) 2 air mile S of Marsh Creek Reservoir Gauging Station, 1.6 air mile SW of intersection of Camino Diablo and Vasco Road, Contra Costa Water District s Los Vaqueros Watershed Mitigation. 67 Comment
  CAS-BOT-BC168537  Atriplex coronata H. M. Hall 1923-10-2 s.n. Contra Costa Byron Hot Springs Comment
  CDA37399  Atriplex coronata D. G. Kelch, Mike Perlmutter 2011-9-23 11 .76 Contra Costa Entry to Discovery Bay. Comment
  RSA0036964  Atriplex coronata D. G. Kelch, Mike Perlmutter 2011-9-23 11 .760 Contra Costa Entry to Discovery Bay. 2 Comment
  JEPS99040  Atriplex coronata Robert E. Preston & Eva Buxton 1994-8-4 618 Contra Costa 0.9 mi NW Marsh Creek Reservoir. 76 Comment
  UCD77372  Atriplex coronata Robert E. Preston 2000-9-6 1436 Contra Costa Byron Tract, at the confluence of Indian Slough and Old River, on landward side of levee. UTM 4196850N 626265E 3 Comment
  CDA23264  Atriplex fruticulosa T. Sawyer 1965-3-23 Contra Costa Armstrong Road. 0 Comment
  SEINET4134956  Atriplex heterosperma Howard C. Stutz 1990-8-17 95340 Contra Costa No. Livermore.; 0 Comment
  RSA293441  Atriplex joaquinana Reino Alava 1958-6-6 2138 Contra Costa 3 miles south of Byron, between the highway south and the railroad track Comment
  UCD97493  Atriplex joaquinana Carol W. Witham 1994-8-7 588 Contra Costa east of Bixler Road between Marsh Creek Road and Point of Timber Road. 3 Comment
  UCD158698  Atriplex prostrata James A. Neilson Jr. 1972-11-2 3620 Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 1 Comment
  UC2027884  Atriplex rosea Barbara Ertter, Chris Thayer 1996-10-25 15367 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park. Comment
  UC217190  Atriplex rosea H. M. Hall 1919-11-14 10971 Contra Costa n Byron; n of Byron 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
  UC53768  Avena barbata J. Burtt Davy Apr 1897 Contra Costa Point Isabel Comment
  UC697189  Avena barbata Mary L. Bowerman 1933-5-8 2002 Contra Costa Fossil Ridge Mount Diablo (s face, not far from but out of sight of South Gate) 289 Comment
  CAS-BOT-BC146024  Avena barbata John Thomas Howell 1983-5-12 54745 Contra Costa Mount Diablo. Juniper Camp. 914 Comment
  JEPS100027  Avena fatua A. Langston 2003-6-6 AL 37 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691223  Avena fatua Mary L. Bowerman 1935-4-19 2853 Contra Costa West road 3.5 mi from entrance; Mount Diablo 381 Comment
  UCSB12521  Avena fatua Grah, Nancy 1962-4-14 Contra Costa 0.2 mi N of Miner Rd on Sleepy Hollow Lane; Orinda 182 Comment
  SEINET8718193 Image available Avena sativa Laura Zeller 1965-1 81 Contra Costa Just E of the University of California Botanical Garden. Comment
  CAS-BOT-BC68349  Azolla Walter Knight 1978-10-4 3313 Contra Costa Browns Island, Point Emmet Comment
  UC2027750  Azolla filiculoides Barbara Ertter 1996-11-24 15423 Contra Costa West side of Mount Diablo, Pine Pond along Stage Road in Pine Canyon. Comment
  UC2028018  Azolla filiculoides Barbara Ertter 1998-1-4 15889 Contra Costa South end of Diablo Foothills Regional Park southeast of Walnut Creek, Hazzard Pond north of Livorna Staging Area. Comment
  JEPS21278  Baccharis glutinosa J. Thomas Howell 1926-1-17 1627 Contra Costa between Cashion and Las Trampas Ridge Cashion Comment
  UC2028233  Baccharis glutinosa Barbara Ertter 1998-11-15 16463 Contra Costa North side Mount Olympia on north side Mount Diablo. Comment
  UC697205  Baccharis glutinosa Mary L. Bowerman 1938-9-17 3719 Contra Costa Willow Spring Comment
  CAS-BOT-BC98611  Baccharis pilularis Walter Knight; I. Knight; S. Rae; B. Doyle; J. T. Howell; E. McClintock 1978-9-5 3208 Contra Costa Browns Island Comment
  JEPS104734  Baccharis pilularis John L. Morrison 1936-8-30 1848 Contra Costa Shasta Road, Wildcat Canyon Comment
  JEPS75550  Baccharis pilularis P. F. Yorks 1974-9-28 368 Contra Costa n of, (1.6 km s of Bear Cr. Rd on Hampton Road in Hampton) Briones Reservoir; Hampton 180 Comment
  JEPS99961  Baccharis pilularis A. Langston 2003-9-16 AL 92 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1948938  Baccharis pilularis William J. Ferlatte, L. Maynard Moe 1970-4-27 1239 Contra Costa San Francisco Bay: Red Rock Island Comment
  JEPS102908  Balsamorhiza deltoidea Barbara Ertter with Holly Forbes 1997-4-20 15564 Contra Costa NE base of Eagle Ridge, Back Creek Trail to Coulter Pine Trail Mount Diablo 213 Comment
  CAS-BOT-BC106560  Balsamorhiza deltoidea G. L. Stebbins 1937-5-1 2108 Contra Costa North facing ridge, about 1 mile south of Somersville. 365 Comment
  UC691252  Barbarea orthoceras Mary L. Bowerman 1931-2-28 528 Contra Costa Mount Diablo; South Road just below junction with North Road Comment
  RSA666351  Bassia hyssopifolia Barbara Ertter, Brad Olson, Lynne Hosley, A. Youngson 1991-10-20 10885 Contra Costa Dow Wetlands Preserve, just W of Antioch marina. Comment
  CDA28899  Bellardia trixago D. G. Kelch, Troy MacGregor 2009-5-24 9 .3 Contra Costa Carquinez Strait; Carquinez Loop Trail S of Ozol, S-SW of Martinez, nr Wolcott Ln . Comment
  JEPS15610  Bellardia trixago R. Bacigalupi and G. Thomas Robbins 1955-5-4 4973 Contra Costa E edge, field along treat Lane Concord; Clayton Valley 60 Comment
  UC1584667  Bellardia trixago Jerry Powell 1987-7-14 1500 Contra Costa Point Molate Beach Comment
  RSA60805  Bellardia trixago Carlotta C. Hall 1911-5-20 8835 Contra Costa Near Concord. 100 Comment
  SD26790  Bellardia trixago Paul Covel May 1938 Contra Costa Bet. Martenez and Crockett Comment
  UCR251689  Beta vulgaris Detlef Bartsch 2014-6-14 s.n. Contra Costa Martinez, Embarcadero St., Martinez Regional Shoreline Park 2 Comment
  CAS-BOT-BC102034  Bidens laevis James McMurphy 1908-10-18 s.n. Contra Costa Antioch 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-BC100701  Blennosperma nanum var. nanum Annetta Carter 1937-3-28 1225 Contra Costa March Creek Road, 15 miles east of Concord 152 Comment
  CAS-BOT-BC100702  Blennosperma nanum var. nanum Helen K. Sharsmith 1954-3-24 4409 Contra Costa Hillslope above old Nortonville Mines, near Kirker Pass Road between Clayton and Antioch 304 Comment
  CAS-BOT-BC127913  Blepharizonia laxa M. K. Curran 1883-10-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC100340  Blepharizonia plumosa Miss H. A. Walker 1916-8-28 3922 Contra Costa Los Medanos, near Antioch Comment
  RSA332608  Blepharizonia plumosa M. K. C 1885-08 s.n. Contra Costa Antioch Comment
Read comments
Dec 16 2012
  UC596244  Blepharizonia plumosa R. F. Hoover 1937-8-31 2704 Contra Costa Pittsburg Comment
  UC762568  Blepharizonia plumosa Robert F. Hoover 1937-9-2 2711 Contra Costa 1 mi w of Antioch Comment
  UC762569  Blepharizonia plumosa R. F. Hoover 1937-8-31 2704 Contra Costa Pittsburg Comment
  CAS-BOT-BC100332  Blepharizonia plumosa H. M. Hall 1916-8-17 10275 Contra Costa Los Medanos, Suisan Bay Comment
  UC2029009  Blepharizonia plumosa Barbara Ertter, Dan Norris 1999-11-14 16855 Contra Costa Black Diamond Mines Regional Preserve, east end of Ridge Trail above Stewartville Trail. Comment
  JEPS48643  Boechera breweri Elsa Kraeger 1926-3-7 Contra Costa e of Mt. Diablo summit; Mt. Diablo Comment
  SEINET183705  Boechera breweri L. Constance, J. L. Morrison 1938-4-5 2192 Contra Costa Near Mitchell Canyon on west slope of Mount Diablo. 610 Comment
  UC691073  Boechera breweri subsp. breweri Mary L. Bowerman 1932-3-27 1142 Contra Costa Mitchell Rock Mount Diablo Comment
  CAS-BOT-BC15965  Boechera breweri subsp. breweri H. M. Hall 1901-4-5 1757 Contra Costa Region of San Francisco. Mount Diablo. Summit. Comment
  POM300655  Boisduvalia glabella Mary L. Bowerman 1935-6-28 3173 Contra Costa Mount Diablo: Vernal pool near meridian (300 yards east of meridian fence line) south of summit 488 Comment
  CAS-BOT-BC31330  Bolboschoenus maritimus John Thomas Howell 1978-9-5 53356 Contra Costa Pittsburg Marina. Comment
  CAS-BOT-BC31331  Bolboschoenus maritimus John Thomas Howell; Gordon H. True 1972-6-29 48943 Contra Costa Low places along Byron Hot Springs Road, SE of Byron. Comment
  SD134060  Bolboschoenus maritimus subsp. paludosus Walter Knight, Joanne Dean 1978-8-14 3161 Contra Costa Browns Island. 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
  UCD140044  Bolboschoenus maritimus subsp. paludosus M. Wiesendanger 1926-6-1 1529 Contra Costa Richmond. 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
  UC2028400  Brachypodium distachyon Barbara Ertter with Dan Norris 1998-6-18 16222 Contra Costa Devil's Slide trail from Knobcone Point Road, south side of Mount Diablo Comment
  JEPS111852  Brassica rapa A. G. Murdock 2004-3-19 217 Contra Costa Luzon Sycamore Ave. just east of Rodeo/Hercules where train crosses Highway 4 (Luzon). 60 Comment
  POM181431  Brassica rapa I. L. Wiggins 1930-4-18 4609 Contra Costa Jersey Island. Comment
  CAS-BOT-BC36725  Brassica rapa R. E. Frenkel 1964-9-19 851 Contra Costa On California Highway 21, Market Plaza Center, Alamo. 79 Comment
  UC34624  Brickellia californica V. King Chesnut 1887-9-11 Contra Costa Mt. Diablo Comment
  CDA31567  Briza minor D. G. Kelch, Andrew G. Murdock 2004-4-24 4 .104 Contra Costa Carquinez Strait; Canada del Cierbo, along Cumming Skyway at Highway 80 ~ .75 km. 0 Comment
  UC691193  Briza minor Mary L. Bowerman 1931-4-11 686 Contra Costa Pine Canyon Mount Diablo (lower end) 121 Comment
  JEPS100061  Brodiaea elegans G. Smick 2003-6-6 GAS 216 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1618319  Brodiaea elegans subsp. elegans Barbara Ertter 1990-5-19 8995 Contra Costa n Lafayette (edge of ridge road); Briones Regional Park, Lafayette Ridge 365 Comment
  RSA424694  Brodiaea elegans subsp. elegans Aaron Liston 1987-4-27 670 -2 Contra Costa 3 miles S of Byron. Comment
  UC407032  Brodiaea terrestris subsp. terrestris Ira L. Wiggins 1930-4-17 4573 Contra Costa near Byron Comment
  POM181436  Brodiaea terrestris subsp. terrestris I. L. Wiggins 1930-4-17 4573 Contra Costa Near Byron. Comment
  POM300677  Bromus berteroanus Mary L. Bowerman 1933-4-15 1874 Contra Costa Mount Diablo; Canyon south of Arroyo del Cerro: Rocky knoll 250 feet below spring. Comment
  UC2028538  Bromus catharticus Barbara Ertter 1998-2-15 15917 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, Edge of Bob Pond and picnic area at Old Borges Ranch. Comment
  CAS-BOT-BC156063  Bromus diandrus Alice Eastwood 1921-4-18 10262 Contra Costa Antioch. Comment
  POM300672  Bromus diandrus Mary L. Bowerman 1932-4-27 1366 Contra Costa Oyster Ridge, south face of ridge west of Riggs Canyon Comment
  RSA32317  Bromus diandrus Mary L. Bowerman 1933-5-11 2088 Contra Costa Inner Black Hills west of saddle: open 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
  CHSC21617  Bromus hordeaceus Willis Ball 1974-4-21 429 Contra Costa Contra Loma Regional Park. In area #6. On e side of Contra Loma Blvd. ca. 300 yds. s of main boat ramp at s end of lake. One yd. off road. 45 Comment
  UC1818908  Bromus hordeaceus Barbara Ertter, Mary Bowerman et al. 1995-5-7 14036 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, grassland flat near ponds. Comment
  UC692346  Bromus hordeaceus Mary L. Bowerman 1933-4-15 1870 Contra Costa Canyon s of Arroyo del Cerro (Mount Diablo); Mount Diablo Comment
  UC691133  Bromus laevipes Mary L. Bowerman 1933-6-20 2324 Contra Costa Mount Diablo, Median Ridge in Donner Canyon Donner Canyon; Mount Diablo, Median Ridge, Donner Canyon 304 Comment
  SEINET10835104  Bromus macrostachys Davis 1941-1 Davis B 139 Contra Costa Briones Hills. Cultivated, greenhouse. (See Ph.D. thesis of P.F. Knowles, 1942.) Comment
  POM300673  Bromus madritensis Mary L. Bowerman 1935-3-3 2961 Contra Costa Sloan Road. 488 Comment
  UCD58961  Bromus madritensis Beecher Crampton 1956-5-14 3401 Contra Costa Southeast of Mt. Diablo. 640 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
  CAS-BOT-BC162357  Bromus madritensis Mary L. Bowerman 1935-5-16 2991 Contra Costa Mount Diablo. Russelman Park, at end of road. Comment
  UC692335  Bromus madritensis subsp. madritensis Mary L. Bowerman 1935-4-19 2863 Contra Costa near Turtle Rock (Mount Diablo); Mount Diablo 457 Comment
  UC692336  Bromus madritensis subsp. madritensis Mary L. Bowerman 1932-4-27 1371 Contra Costa canyon w of Riggs Canyon (s face of Oyster Ridge, Mount Diablo); Mount Diablo, Oyster Ridge 289 Comment
  UC692345  Bromus madritensis subsp. rubens Mary L. Bowerman 1933-3-18 1751 Contra Costa Mount Diablo, Meridian Peak, (a little east of the meridian) Meridian Peak; Mount Diablo, Meridian Peak 548 Comment
  CAS-BOT-BC162018  Bromus racemosus P. F. Knowles 1942-1-1 B 70 Contra Costa 1 mile west of Rodeo. Davis. Comment
  SEINET5607271 Image available Bromus rigidus Rachel Van Noord 1998-1 6 Contra Costa Dinosaur Hill Park, Pleasant Hill Comment
  CAS-BOT-BC161951  Bromus rubens Mary L. Bowerman 1933-3-18 1751 Contra Costa Mount Diablo below the chaparral belt, a little east of the meridian. 548 Comment
  CAS-BOT-BC161952  Bromus rubens Mary L. Bowerman 1933-4-26 1913 Contra Costa Mount Diablo. North Peak ridge east-southeast of the Peak. 609 Comment
  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
  UC1795743  Bromus sterilis Barbara Ertter, Mary Bowerman et al. 1995-5-7 14053 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, open oak forest above houses. Comment
  CDA975  Bromus trinii D. G. Kelch 2005-6-14 05 .333-B Contra Costa East Bay; San Pablo. North Alvarado Park, south of San Pablo Dam Rd. Comment
  UC1103346  Bromus trinii J. P. Tracy 1900-5-24 613 Contra Costa San Francisco Bay Region, Point Richmond Point Richmond; San Francisco Bay Region, Point Richmond 3 Comment
  JEPS111868  Cakile maritima D. G. Kelch 2004-7-9 04 .313 Contra Costa Rodeo Shoreline 0 Comment
  CAS-BOT-BC233995  Calandrinia breweri Mary L. Bowerman 1932-4-16 1338 Contra Costa Eagle Point ridge south of 1682 point, Mount Diablo Comment
  JEPS99499  Calandrinia breweri Mary Bowerman 1979-5-2 Contra Costa Comment
  CAS-BOT-BC438369  Calandrinia ciliata Alice Eastwood 1914-3-14 3809 Contra Costa Byron Springs Comment
  CAS-BOT-BC438374  Calandrinia ciliata John Thomas Howell 1940-4-21 15407 Contra Costa Pine Canyon, Mt. Diablo Comment
  UCD100276  Calandrinia ciliata Robbin W. Thorp 1967-2-26 670226 B Contra Costa Somersville, ca. 5 miles southwest of Antioch. Comment
  UC1050752  Calceolaria integrifolia N. Floy Bracelin 1942-6-28 2166 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS108319  Calendula arvensis David Gowen 2005-2-23 166 Contra Costa Mt. Diablo State Park. Juniper Trail just south of Silver Spring. Comment
  JEPS111765  Callitriche marginata D. G. Kelch 2005-3-11 05 .34-B Contra Costa Mt. Wanda - Martinez Mt. Wanda. Fire road climbing North side of mountain 90 Comment
  UC691992  Calochortus Mary L. Bowerman 1933-5-22 2169 Contra Costa e of Knobcone Point (on n-face (2 small ridges w of n ridge)); Mount Diablo, Inner Black Hills Comment
  JEPS112497  Calochortus luteus D. G. Kelch 2004-5-7 04 .180 Contra Costa Ca ada del Cierbo 40 Comment
  UC2028297  Calochortus luteus Barbara Ertter with Dan Norris 1998-6-18 16214 Contra Costa Rock City area on south side of Mount Diablo, trail to Artist Point. Comment
  CAS-BOT-BC132498  Calochortus pulchellus A. D. E. Elmer 1903-6-1 4631 Contra Costa Mt. Diablo Comment
  JEPS61709  Calochortus pulchellus W. L. Jepson 1918-6-3 7570 Contra Costa Donner Canyon Mt. Diablo 533 Comment
  RSA369096  Calochortus pulchellus Ora M. Clark 1928-1 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC132499  Calochortus pulchellus W. W. Carruth 1900-4-1 s.n. Contra Costa Lafayette Comment
  CAS-BOT-BC132505  Calochortus pulchellus Paul F. Covel 1936-5-17 123 Contra Costa Mt. Diablo, (North Pk trail) Comment
  CDA9192  Calochortus superbus Christopher Thayer 1996-6-7 s.n. Contra Costa On SW facing grassy slopes on Oursan Trail not far above Hampton Road. EBMUD property. 0 Comment
  RSA757049  Calochortus umbellatus Rudolf Schmid 1997-4-8 1997 -2 Contra Costa Hillside Natural Area, El Cerrito; southwest of Kent Drive- Regency Ct. entrance, north side of junction of the two main fire roads 145 Comment
  RSA0029672  Calochortus venustus Barbara Ertter, Susan D'Alcamo 1998-6-12 16156 Contra Costa North Gate Road on west flank of Mount Diablo, ca 1/2 mile below upper Turtle Rock Ranch buildings. 518 Comment
  UC2028315  Calochortus venustus Barbara Ertter, Susan D'Alcamo 1998-6-12 16156 Contra Costa North Gate Road on west flank of Mount Diablo, ca 1/2 mile below upper Turtle Rock Ranch buildings. Comment
  UC2028988  Calochortus venustus Barbara Ertter 2000-5-14 17007 Contra Costa Donner Canyon on north side of Mount Diablo, SW end of Falls Trail between Middle Trail and Donner Creek crossing. Comment
  UC88982  Calycadenia multiglandulosa K. Brandegee 1884-7-1 Contra Costa Antioch Comment
  CAS-BOT-BC275351  Calycadenia truncata var. truncata Mary L. Bowerman 1936-9-1 3536 Contra Costa Mount Diablo. Between North Peak and the mouth of Perkins Canyon 487 Comment
  CAS-BOT-BC275352  Calycadenia truncata var. truncata Mary L. Bowerman 1931-9-12 1040 Contra Costa Mount Diablo. Mitchell Canyon, spur jutting into W fork 838 Comment
  UC23188  Calystegia malacophylla subsp. pedicellata Edw. L. Greene 1892-6-25 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC215917  Calystegia purpurata subsp. purpurata Alice Eastwood 1915-5-30 4437 Contra Costa Mt. Diablo Comment
  CDA39897  Calystegia purpurata subsp. purpurata A. G. Murdock 2003-6-2 79 Contra Costa Carquinez Strait Region; Franklin Canyon - McHarry Ranch Rd. Comment
  UC1965404  Calystegia sepium subsp. binghamiae R. K. Brummitt and B. Ertter 2012-6-16 22059 Contra Costa Antioch, beside Plaza at water's edge at upper end of Suisun Bay Comment
  CAS-BOT-BC202027  Calystegia sepium subsp. limnophila Ira L. Wiggins 1954-9-5 13122 Contra Costa Levee along Bethel Island Comment
  RSA710326  Calystegia sepium subsp. limnophila R. K. Brummitt, Barbara Ertter, N. A. Brummitt 1998-5-6 19792 Contra Costa Antioch, by marina. Comment
  JEPS47838  Calystegia subacaulis W. L. Jepson 1922-6-7 9719 a Contra Costa North Berkeley Hills Comment
  UC2062681  Calystegia subacaulis Barbara Ertter with Tony Morosco 1998-7-11 16368 Contra Costa North base of Mount Diablo State Park, Coulter Pine Trail just east of Mitchell Rock Trail. Comment
  UC635291  Camissonia campestris subsp. campestris H. L. Mason 1931-4-5 5820 Contra Costa Antioch sandhills Comment
  JEPS12784  Camissonia contorta Rimo Bacigalupi with G. T. Robbins 1955-5-4 4977 Contra Costa s. of and above Nortonville (site) 304 Comment
  RSA448887  Camissonia hirtella H. de Forest 1930-4-6 s.n. Contra Costa SE of Mortonville, Small coal mine ravine. 274 Comment
  UC2028261  Camissonia hirtella Barbara Ertter 1999-6-12 16719 Contra Costa Knobcone Point Road on south side of Mount Diablo, burned chamissal at head of NE fork of Sycamore Creek. Comment
  UC2028251  Camissonia intermedia Barbara Ertter, Mary Bowerman, Lisa Schultheis 1998-8-21 16397 Contra Costa South side of Mount Diablo, South Gate Road 1.1 miles below entry kiosk. Comment
  RSA41307  Camissonia ovata Robert F. Hoover 1938-2-21 2755 Contra Costa Point Richmond. Comment
  SEINET12189053  Camissonia strigulosa L. S. Rose 1938-1 38223 Contra Costa Antioch 15 Comment
  JEPS101167  Camissoniopsis hirtella Dean W. Taylor 1971-3-28 973 Contra Costa Mount Diablo, Mount Diablo State Park, 1 mile south of the South Entrance 457 Comment
  UC635400  Camissoniopsis intermedia H. L. Mason 1928-4-29 4436 Contra Costa Sycamore Canyon Mount Diablo (s slope of mt.) Comment
  UC20644  Camissoniopsis micrantha W. H. Brewer 1862-5-22 1137 Contra Costa hills s Coal Mines (ne of Mt. Diablo) Comment
  UC2070451  Camissoniopsis micrantha Barbara Ertter with Dan Norris 2001-4-8 17600 Contra Costa Lime Ridge Open Space east of Walnut Creek. Comment
  CAS-BOT-BC266436  Campanula exigua Alice Eastwood 1915-5-30 4452 Contra Costa Mount Diablo Comment
  RSA100285  Campanula exigua Mary L. Bowerman 1930-6-14 330 Contra Costa Summit of Mount Diablo 1159 Comment
  UC2029116  Campanula griffinii Barbara Ertter with D. Gowen, J. Ginochio, M. Park, S. Matson, A. Moore, S. D'Alcamo, J. Greenhouse, K. Kersh and J. Gawthrup 2005-4-8 18570 Contra Costa Long Ridge on west flank of Mt. Diablo, springs and pond on Ginochio property near park boundary. Comment
  UC1051189  Campanula persicifolia var. alba N. Floy Bracelin 1944-6-19 2737 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC37029  Capsella bursa-pastoris Mary L. Bowerman 1931-2-8 505 Contra Costa Mount Diablo. North Road a new [few?] miles from North Gate. 396 Comment
  UC1126899  Cardamine californica R. C. Wilson 1935-3-19 142 Contra Costa 1 mi se Wall Pt.; Mt. Diablo Quad. Comment
  LA204280  Cardamine californica John Thomas Howell; 1931-3-10 5757 Contra Costa Mt. Diablo, 7 miles from Clayton on Livermore road Comment
  UC10419  Cardamine californica var. integrifolia W. H. Brewer 1862-5-1 1039 Contra Costa Walnut Creek Comment
  POM225551  Cardamine californica var. integrifolia J. T. Howell 1931-3-10 5757 Contra Costa East side of Mt. Diablo 7 miles from Clayton on Livermore road. Comment
  CAS-BOT-BC37863  Cardamine oligosperma Mary L. Bowerman 1932-3-6 1100 Contra Costa Mount Diablo. Sycamore Canyon, east fork. Near trail. Comment
  UC691058  Cardamine oligosperma Mary L. Bowerman 1935-5-3 2955 Contra Costa hillside below Jungle of the Garden Gods (Rock City Ridge, Fossil Ridge, Mount Diablo); Mount Diablo, Rock City Ridge, Fossil Ridge 472 Comment
  UC691070  Cardamine oligosperma Mary L. Bowerman 1931-3-29 618 Contra Costa East Cave Point Ridge , East Cave Point Ridge (Mount Diablo) Comment
  JEPS111068  Cardamine oligosperma Lee Echols 2003-3-7 s.n. Contra Costa N of Lark Drive in S portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  UC2029039  Cardamine oligosperma Barbara Ertter 2000-3-19 16897 Contra Costa Southwest side of Mount Diablo, Stage Road along Pine Creek, ca 1/2 mile above Pine Pond. Comment
  CDA15243  Cardaria chalepensis G. F. Hrusa, D. Crowe 1998-5-8 14374 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  CDA40567  Cardaria pubescens V. Guise 2014-5-19 PDR# 070 P06223903 Contra Costa Rodeo; northside of Highway 4, 0.25 mile west of Carbon Way. 0 Comment
  CAS-BOT-BC281735  Carduus pycnocephalus Joseph P. Tracy 1934-4-30 13188 Contra Costa Roadside between Moraga and Lafayette 152 Comment
  UC691373  Carduus tenuiflorus Mary L. Bowerman 1934-6-9 2547 Contra Costa bend by sign reading 4.4 mi to summit Diablo Trail sign (South Road); Mount Diablo 304 Comment
  CDA33124  Carex barbarae D. G. Kelch, A. G. Murdock 2004-7-9 04 .305-B Contra Costa Carquinez Strait; Alhambra Creek, Martinez, near Muir gravesite, Arroyo del Hambre. Comment
  UC691960  Carex barbarae Mary L. Bowerman 1938-10-10 3724 Contra Costa juntion between North and South Roads: along stream Mount Diablo 624 Comment
  POM300641  Carex barbarae Mary L. Bowerman 1935-9-13 3344 Contra Costa Mount Diablo: Frog Pond, at head of Frog Pond Spring. Comment
  UC2028415  Carex globosa Barbara Ertter with Alan Whittemore, Joanne Kerbavaz, et al. 2001-5-22 17650 Contra Costa South side Mount Diablo, headwaters of West Branch Alamo Creek ESE of Knobcone Point, below powerline at end of Knobcone Point Road Comment
  UC2070509  Carex globosa Barbara Ertter with Dan Norris 2001-4-8 17594 Contra Costa Lime Ridge Open Space east of Walnut Creek. Comment
  JEPS105723  Carex serratodens David Gowen 2004-9-13 159 Contra Costa Mt. Diablo State Park. Maple Spring, which is on the North Gate Rd., approx. 1920' elev. 585 Comment
  POM222732  Carex serratodens L. S. Rose 1935-5-16 35163 Contra Costa Mt. Diablo. Comment
  UC2028444  Carex serratodens Barbara Ertter with Chris Thayer 1996-10-25 15374 Contra Costa West side of Mount Diablo, North Gate Road 1 road mile NW of Burma Road Comment
  UC692013  Carex serratodens Mary L. Bowerman 1932-11-19 1653 Contra Costa Elder Spring Mount Diablo Comment
  UC823230  Carex serratodens Lewis S. Rose 1935-5-16 35163 Contra Costa Mt. Diablo Comment
  JEPS105722  Carex serratodens David Gowen 2004-9-13 160 Contra Costa Mt. Diablo State Park. Johnny Walker Spring, which is ca. .2 mile above the junction of Angel Kerley Rd. (fire trail) and North Gate Rd., approx. 2200' elev. Comment
  UC1818878  Carex serratodens Barbara Ertter, Kristin Ertter 1995-7-11 14487 Contra Costa Partial shade of willows, mudflat around Pine Pond inlet. Comment
  JEPS25119  Carex subbracteata G. Thomas Robbins 1959-4-18 3985 Contra Costa 1/2 mi e Pt. San Pablo (overlooking San Pablo Bay); San Pablo Bay, Richmond 7 Comment
  UC2028500  Carex subbracteata Barbara Ertter 1999-3-21 16491 Contra Costa NW corner of Miller Knox Regional Shoreline, Protero Hills SW of Richmond Comment
  CAS-BOT-BC116916  Carex subbracteata var. subbracteata G. Thomas Robbins 1959-4-18 3984 Contra Costa Overlooking San Pablo Bay, ca 1/2 mi E of Pt. San Pablo, Richmond. 7 Comment
  OBI13975  Carpenteria californica Neil Havlik 1968-5-19 201 Contra Costa Tilden Botanical Garden, Charles Lee Tilden Regional Park, E of Berkeley Comment
  JEPS73301  Castilleja L. R. Heckard 1973-6-6 3422 Contra Costa ravine behind La Moine Park; Richmond 121 Comment
  CDA9650  Castilleja affinis A. G. Murdock, D. G. Kelch 2004-5-28 292 Contra Costa Carquinez Strait; Pinole Peak. Comment
  UCSB39456  Castilleja applegatei subsp. martinii Fritzke, Sue 1980-3-29 Contra Costa 0.5 miles from the east end of Ball Rd., in the Shell Ridge Open Space Area, SE of the rock quarry 124 Comment
  JEPS74804  Castilleja attenuata L. R. Heckard, T. I. Chuang and R. Bacigalupi 1975-5-7 4012 Contra Costa ca 0.5 mi e Pinole (just e of Interstate 80, along main route of Santa Fe Railroad) Comment
  JEPS19440  Castilleja densiflora subsp. densiflora Rimo Bacigalupi with G. T. Robbins 1956-5-11 5640 Contra Costa .33 mi e Pinole (between State Highway 4 (Franklin Canyon Rd) and Santa Fe Ry. right-of-way, 0.25 mi e of junction of this rd with U.S. Hwy 40) 22 Comment
  CDA15239  Castilleja exserta G. F. Hrusa, D. Crowe 1998-5-8 14370 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg near shore of San Joaquin River. Comment
  CDA41325  Castilleja exserta subsp. exserta D. G. Kelch 2005-5-13 5 .239 Contra Costa Carquinez Strait Region; Martinez. South of oil refinery along railroad tracks in fragment of habitat. Comment
  CDA41326  Castilleja exserta subsp. exserta D. G. Kelch 2005-4-24 5 .162 Contra Costa Carquinez Strait Region; Franklin Canyon. Collier Hill. West Carbon. Comment
  JEPS19519  Castilleja exserta subsp. exserta Rimo Bacigalupi with G. T. Robbins 1956-5-11 5640 -A Contra Costa .33 mi e Pinole (between State Hwy 4 (Franklin Canyon Rd) and Santa Fe Ry right-of-way, 0.25 mi e of junction of this rd with U.S. Hwy 40) Comment
  UC673456  Castilleja exserta subsp. exserta H. L. Mason 1928-3-4 4168 Contra Costa Shell Ridge Comment
  UC2028150  Castilleja foliolosa Barbara Ertter 1998-4-4 15963 Contra Costa Shell Ridge Open Space northwest of Mount Diablo and Indian Valley School. Comment
  RSA14423  Castilleja franciscana H. P. Bracelin 1933-6-10 768 Contra Costa Near crest of hills north of Berkeley above Kensington. Comment
  UC2045291 Image available Castilleja parviflora var. douglasii Mary L. Bowerman 1930-6-5 243 Contra Costa West road, 5.8 miles from entrance Comment
  JEPS9141  Castilleja rubicundula subsp. lithospermoides W. L. Jepson 1922-7-9 9729 Contra Costa Richmond Comment
  UC1051331  Castilleja rubicundula subsp. lithospermoides N. Floy Bracelin 1941-6-15 1398 Contra Costa ADELANTE, The Garden of Anson and Anita Blake, Berkeley. Comment
  UC64223  Castilleja subinclusa subsp. franciscana H. M. Hall 1901-3-17 Contra Costa Point Richmond; San Francisco Bay Region Comment
  CAS-BOT-BC40485  Caulanthus lasiophyllus Bolander 1863-1-1 368 Contra Costa San Pablo Landing. Comment
  CAS-BOT-BC40512  Caulanthus lasiophyllus Bolander 1863-1-1 s.n. Contra Costa San Pablo Landing. Comment
  UC2070556  Caulanthus lasiophyllus Barbara Ertter with David Gowen and Mike Park and Victoria Seidman 2004-4-20 18360 Contra Costa Eagle Peak Trail on east side of Twin Peaks, north side of Mount Diablo. Comment
  RSA15450  Ceanothus cuneatus Alice Eastwood, John T. Howell 1936-4-19 s.n. Contra Costa Nortonville. Comment
  UCD111751  Ceanothus cuneatus P. B. Kennedy 1916-5-31 s.n. Contra Costa between Diablo and summit. 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
  JEPS42292  Ceanothus oliganthus var. sorediatus W. L. Jepson 1907-4-26 2465 Contra Costa Mitchell Creek Mt. Diablo Comment
  CHSC23349  Centaurea solstitialis Willis Ball 1975-5-20 530 Contra Costa Contra Loma Regional Park. In area #10 ca. 300 yds e of dam. 33 Comment
  CAS-BOT-BC284465  Centaurea solstitialis E. M. Zeile 1921-10-1 41 Contra Costa Rodeo Comment
  UC2027958  Centaurea solstitialis Barbara Ertter with Joanne Kerbavaz 2000-8-20 17495 Contra Costa South side Mount Diablo, ca halfway up South Gate 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
  UC1050885  Centranthus ruber N. Floy Bracelin 1942-5-17 1287 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1076270  Centromadia fitchii Herbert L. Mason 1929-9-21 5433 Contra Costa 3 mi above Clayton (Marsh Creek Road) Comment
  UC697177  Centromadia fitchii Mary L. Bowerman 1936-9-17 3548 Contra Costa 2.5 mi from North Gate (North Road); Mount Diablo 243 Comment
  CAS-BOT-BC288536  Centromadia fitchii David D. Keck 1933-11-2 2609 Contra Costa San Ramon, Crow Creek Canyon Rd, 0.5 mile from turnoff Comment
  CAS-BOT-BC288544  Centromadia fitchii James I. McMurphy 1909-5-20 s.n. Contra Costa Antioch Hills Comment
  CAS-BOT-BC288547  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
  UCD130188  Centromadia fitchii Lewis S. Rose 1941-10-13 41464 Contra Costa 1 mile east of Walnut Creek. 45 Comment
  CAS-BOT-BC288873  Centromadia parryi subsp. congdonii R. E. Preston 1998-10-6 1171 Contra Costa On N side of Camino Tassajara, from Tassajara Hill Elementary School to 0.35 mile W of Finlay Rd 228 Comment
  JEPS95222  Centromadia parryi subsp. congdonii R. E. Preston 1998-10-6 1173 Contra Costa E side of Camino Tassajara, ca. 1 mi S of Highland Road 170 Comment
  UC1069557  Centromadia parryi subsp. congdonii H. S. Yates 1934-9-2 4072 Contra Costa 1 mi ne Danville; Mt. Diablo Quadrangle Comment
  CAS-BOT-BC288882  Centromadia parryi subsp. congdonii H. M. Hall 1916-10-14 10283 Contra Costa Pacheco Comment
  CAS-BOT-BC279196  Centromadia pungens subsp. pungens J McMurphy 1909-5-20 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC279204  Centromadia pungens subsp. pungens David D. Keck 1933-11-2 2613 Contra Costa 3 mi. S. of Martinez on road to Pacheco Comment
  UC306676  Centromadia pungens subsp. pungens A. D. E. Elmer 1903-5-1 4392 Contra Costa Walnut Creek Comment
  UC89009  Centromadia pungens subsp. pungens E. L. Greene 1886-5-23 Contra Costa Byron Springs Comment
  UC2029033  Centromadia pungens subsp. pungens Barbara Ertter 2002-11-11 18079 Contra Costa Round Valley Regional Preserve east of Mount Diablo, alkaline spring on Murphy's Meadow Trail at north end of Round Valley. Comment
  CAS-BOT-BC222901  Cephalanthus occidentalis Walter Knight; Joanne Dean 1978-8-14 s.n. Contra Costa Browns Island Comment
  CAS-BOT-BC222902  Cephalanthus occidentalis Virginia I. Dains; Walter Knight 1986-8-8 5465 Contra Costa Jct Rock S1 & Werner Cut Comment
  UC1039525  Cephalanthus occidentalis var. californicus H. L. Mason 1929-9-21 5447 Contra Costa 1 mi from Borden Highway junction with road to Antioch Comment
  UC1594173  Cephalanthus occidentalis var. californicus Jerry Powell 1991-8-15 1612 Contra Costa Antioch National Wildlife Refuge Comment
  UC1606353  Cephalanthus occidentalis var. californicus Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10692 Contra Costa n of Pittsburg (Browns Island, near confluence of Sacramento River and San Joaquin River, opposite Pittsburg Marina); Browns Island Comment
  UC691101  Cercocarpus betuloides var. betuloides Mary L. Bowerman 1931-4-25 Contra Costa summit of Meridian Peak (Mount Diablo); , Meridian Peak Comment
  UC691122  Cercocarpus betuloides var. betuloides Mary L. Bowerman 1931-3-7 548 Contra Costa summit of Meridian Peak, Mount Diablo Meridian Peak; Mount Diablo, Meridian Peak Comment
  UC565564  Chaenactis glabriuscula var. glabriuscula H. L. Mason 1929-3-31 5157 Contra Costa Antioch, sand dikes along San Joaquin River San Joaquin River, Antioch Comment
  JEPS111950  Chamaesyce serpens D. G. Kelch 2004-5-21 04 .221 Contra Costa Crockett - Edwards Canyon Edwards Creek EBRP Staging Area near Greenhouse 24 Comment
  RSA0027635  Chamaesyce serpillifolia subsp. serpillifolia Barbara Ertter, Chris Thayer 1996-10-25 15359 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park. 91 Comment
  JEPS94004  Cheilanthes gracillima J. Greenhouse 1998-6-14 Contra Costa w. of Burma Rd. Trail ca. 1 mi. above North Gate Rd. Mt. Diablo 426 Comment
  UC42451  Cheilanthes intertexta F. T. Bioletti May 1894 Contra Costa Mt Diablo Comment
  UC2036953  Chenopodium Mary L. Bowerman 1946-2-10 4083 Contra Costa Near C.C.C. Camp, Mount Diablo. Comment
  JEPS111799  Chenopodium murale D. G. Kelch 2005-3-13 05 .46 Contra Costa Crockett - weedy area under Zampa Bridge 4 Comment
  CAS-BOT-BC252680  Chorizanthe membranacea Mary L. Bowerman 1938-5-28 3636 Contra Costa North Road 4.7 miles from North Gate, Mount Diablo 411 Comment
  JEPS57664  Chorizanthe membranacea W. L. Jepson May 23 1891-May 24 1891 Contra Costa Mount Diablo Comment
  UC692212  Chorizanthe membranacea Mary L. Bowerman 1931-5-7 803 Contra Costa Mount Diablo just below crest s side North Peak Ridge; Mount Diablo, North Peak ridge Comment
  UC77552  Chorizanthe membranacea Brandegee April, 1889 Contra Costa Mount Diablo Comment
  UC52588  Chorizanthe membranacea W. H. Brewer 1862-5-17 1104 Contra Costa canyon n Monte Diablo; canyon n of Monte Diablo (Mount Diablo?) Comment
  UC85937  Chorizanthe uniaristata Mrs. K. Brandegee Contra Costa Mount Diablo Comment
  OBI3376  Chrysolepis chrysophylla var. minor Neil Havlik 1969-7-18 501 Contra Costa Moraga Ridge, east of Oakland 335 Comment
  UC20919  Cicuta maculata var. bolanderi Jos. Burtt Davy 1900-6-7 6668 Contra Costa near Martinez Comment
  CDA19886  Cirsium cymosum J. Vargas 2002-6-4 PDR P 099530 Contra Costa Northern California; Sin. loc. 0 Comment
  RSA0070597  Cirsium cymosum C. M. Belshaw 1936-5-7 2050 Contra Costa 2 miles north of Danville 244 Comment
  UC1119189  Cirsium cymosum var. cymosum C. M. Belshaw 1936-5-7 2050 Contra Costa 2 mi n of Danville; Mt. Diablo Quadrangle 243 Comment
  UC691378  Cirsium cymosum var. cymosum Mary L. Bowerman 1935-5-22 3041 a Contra Costa Eagle Point Ridge, canyon at n e of which heads into saddle w of Twin Peaks Mount Diablo 304 Comment
  UC691379  Cirsium cymosum var. cymosum Mary L. Bowerman 1942-6-1 3848 Contra Costa se of Rock City 502 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
  RSA770014  Cirsium occidentale David J. Keil, Barbara Ertter, et al. 2000-6-18 28815 A Contra Costa Mount Diablo State Park. Lower part of Jumper Trail above Laurel Dell picnic area 915 Comment
  CAS-BOT-BC288044  Cirsium occidentale var. venustum Mrs. E. C. Wright 1917-6-1 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC288047  Cirsium occidentale var. venustum L. R. Abrams 1921-5-25 8049 Contra Costa 4 1/2 miles from summit, Mt. Diablo Comment
  JEPS59167  Cirsium occidentale var. venustum W. L. Jepson 7571 a Contra Costa Mt. Diablo, Donner Canyon Contra Costa Comment
  JEPS59175  Cirsium occidentale var. venustum W. L. Jepson 1919-6-8 8327 Contra Costa Mt. Diablo Comment
  UC691390  Cirsium occidentale var. venustum Mary L. Bowerman 1930-6-10 295 Contra Costa near Mineral (on North Road); Mount Diablo 396 Comment
  RSA0070867  Cirsium quercetorum J. T. Howell 1938-6-30 13940 Contra Costa Berkeley Hills on NE slope near head of Wildcat Canyon. Comment
  UC691387  Cirsium vulgare Mary L. Bowerman 1933-9-15 2442 Contra Costa s face of Meridian Peak; Mount Diablo, Hunt Spring 762 Comment
  CAS-BOT-BC162564  Clarkia affinis Mary L. Bowerman 1935-5-22 3041 Contra Costa Eagle Point Ridge, canyon at north end which heads into saddle west of Twin Peaks - Mount Diablo 304 Comment
  CAS-BOT-BC162567  Clarkia affinis Alice Eastwood 1915-5-30 s.n. Contra Costa Mt. Diablo Comment
  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
  UC2028174  Clarkia affinis Barbara Ertter 1998-5-3 16048 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. Comment
  UC107833  Clarkia biloba Katharine Brandegee June 1905 Contra Costa Port Costa Comment
  UC373494  Clarkia biloba C. L. Hitchcock 1928-6-5 15 Contra Costa 1 mi w Port Costa (between Port Costa and Crockett) 5 Comment
  CAS-BOT-BC163606  Clarkia biloba subsp. biloba C. L. Hitchcock 1928-6-5 13 Contra Costa Between Porta Costa and Martinez, 1 1/2 mile from Port Costa 40 Comment
  LA206006  Clarkia biloba subsp. biloba H. Lewis; M. Lewis 1947-6-15 442 Contra Costa Martiney - Port Costa Road, 2.7 mi. N of Martiney City Limit Comment
  JEPS43615  Clarkia concinna subsp. concinna W. L. Jepson 1918-6-3 7572 Contra Costa Donner Canyon, Mt. Diablo Comment
  UC1819002  Clarkia gracilis subsp. gracilis Barbara Ertter, Tom Delendick 1996-5-2 14612 Contra Costa Mount Diablo State Park, Deer Flat Road north of Juniper Camp, at cut through open live oak forest, northwest-facing slope. 853 Comment
  CAS-BOT-BC172037  Clarkia gracilis subsp. gracilis Mary L. Bowerman 1942-5-24 3840 Contra Costa Jim White Trail to Deer Flat, Mount Diablo 853 Comment
  UC20033  Clarkia modesta F. P. McLean Contra Costa Mt. Diablo Comment
  JEPS99503  Clarkia modesta Mary Bowerman 1978-5-14 Contra Costa Mount Diablo. E side of Eagle Peak, Back Canyon trail to mine. Area of Aug 1977 burn. Comment
  UC2029003  Clarkia purpurea Barbara Ertter 2000-5-14 16996 Contra Costa Lower Donner Canyon on north side of Mount Diablo, on Hetherington Trail. Comment
  CAS-BOT-BC172559  Clarkia purpurea subsp. purpurea Mary L. Bowerman 1933-6-14 2270 Contra Costa Curry-Cave Canyon, ridge between two main forks, Mount Diablo Comment
  CAS-BOT-BC163676  Clarkia purpurea subsp. quadrivulnera L. R. Abrams 1922-5-25 8040 Contra Costa At spring 4 1/2 mi from Summit, Mt. Diablo Comment
  UC634710  Clarkia purpurea subsp. quadrivulnera H. L. Mason 1928-4-26 4379 Contra Costa hills around Berkeley and Oakland Comment
  UC697197  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1931-5-13 843 Contra Costa 1 mi from Sulphur Spring; Mount Diablo, Pine Canyon 167 Comment
  UC1196998  Clarkia rubicunda Joseph P. Tracy 1935-7-6 14039 Contra Costa Moraga 152 Comment
  UC1279898  Clarkia rubicunda Peter H. Raven 1957-6-20 10950 Contra Costa e end Tilden Regional Park (hillside at Inspiration Point) Comment
  UC1377638  Clarkia rubicunda W. J. Dress 1951-7-3 3466 Contra Costa a few mi s Moraga 152 Comment
Read comments
Apr 12 2009
  UC1618334  Clarkia rubicunda Barbara Ertter, Brad Olson 1993-8-8 12204 Contra Costa s.w. San Ramon (Bishop Ranch Regional Open Space); Bishop Ranch Regional Open Space Comment
  UC2012964  Clarkia rubicunda Barbara Ertter with Travis Columbus 1990-6-10 9103 Contra Costa NE corner of Briones Regional Paark, Briones Hills W of Pleasant Hill, jct of Briones Crest and Table Top trails E of Briones Peak. Comment
  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
  CHSC93813  Claytonia exigua subsp. exigua K. L. Chambers 1977-4-1 4266 Contra Costa Mt. Diablo. On trail to Deer Flat from the summit road, ca. 1/8 mile above Deer Flat. Comment
  JEPS43337  Claytonia exigua subsp. exigua H. L. Mason 1931-4-5 Contra Costa se of Mt. Diablo (on road from Marsh Creek to Livermore); Upper Marsh Creek Comment
  JEPS48618  Claytonia exigua subsp. exigua Elsa Kraeger 1926-3-7 Contra Costa w side Mt. Diablo Comment
  UC144408  Claytonia exigua subsp. exigua C. F. Baker 1903-4-28 2816 Contra Costa Mitchell's Canyon; Mt. Diablo Comment
  UC7934  Claytonia exigua subsp. exigua W. H. Brewer 1862-5-12 1082 Contra Costa Mt. Diablo Comment
  UC7935  Claytonia exigua subsp. exigua W. H. Brewer 1862-5-7 1059 Contra Costa Summit of Mt. Diablo; Mt. Diablo Comment
  UC7939  Claytonia exigua subsp. exigua State Survey 1862-5-7 1059 Contra Costa Mt. Diablo Summit Comment
  CAS-BOT-BC439170  Claytonia exigua subsp. exigua Alice Eastwood 1915-5-30 4532 Contra Costa Unspecified Comment
  POM164051  Claytonia exigua subsp. exigua C. F. Baker 1903-4-28 4624 Contra Costa Mitchell s canon, Mt. Diablo. Comment
  CAS-BOT-BC439330  Claytonia gypsophiloides H. M. Hall 1901-4-5 1759 Contra Costa Region of San Francisco Bay. Mt. Diablo 1158 Comment
  UC7871  Claytonia gypsophiloides Edw. L. Greene Jun 1892 Contra Costa Mount Diablo Comment
  UC2062631  Claytonia parviflora subsp. parviflora Barbara Ertter with David Gowen, Mike Park 2004-4-13 18353 Contra Costa Black Diamond Mines Regional Park south of Pittsburg, S of Somersville townsite, Chaparral Loop Trail just across footbridge from Manhattan Trail cut-off. Comment
  POM300716  Claytonia perfoliata Mary L. Bowerman 1932-3-12 1111 Contra Costa Alamo Canyon; East-facing bank fifteen ft. above the stream. 351 Comment
  UC725855  Claytonia perfoliata subsp. perfoliata A. A. Heller 1908-4-17 8909 Contra Costa Tracy 10 Comment
  CAS-BOT-BC440078  Claytonia perfoliata subsp. perfoliata Lewis S. Rose 1933-3-10 33013 Contra Costa Brentwood Comment
  CAS-BOT-BC440079  Claytonia perfoliata subsp. perfoliata Alice Eastwood 1914-3-17 3772 Contra Costa Byron Springs Comment
  CAS-BOT-BC91356  Clematis lasiantha V. Rattan 1883-4-1 s.n. Contra Costa Martinez. Comment
  CAS-BOT-BC91358  Clematis lasiantha H. E. McMinn 1922-6-2 129 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC91360  Clematis lasiantha Alice Eastwood 1915-5-30 4460 Contra Costa Mount Diablo. Comment
  RSA135362  Clematis lasiantha Volney Rattan 1883-04 s.n. Contra Costa Martinez. Comment
Read comments
Jul 18 2011
  UC136298  Clematis lasiantha C. F. Baker 1903-4-28 2946 Contra Costa Mt. Diablo, Mitchells Canyon Comment
  JEPS5870  Collinsia bartsiifolia var. bartsiifolia Fred Shoemaker 1938-4-11 Contra Costa 3 mi w Byron Comment
  JEPS5893  Collinsia bartsiifolia var. bartsiifolia Chesnut and Drew 1889-4-16 Contra Costa near Concord Comment
  JEPS100147  Collinsia heterophylla G. Smick 2003-4-3 GAS 118 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS87900  Collinsia sparsiflora var. collina Barbara Ertter, Brad Olson 1992-4-13 10951 Contra Costa e of Curry Point (Mount Diablo State Park, Knobcone Point Road); Mount Diablo State Park, Knobcone Point Road 518 Comment
  RSA32344  Collinsia sparsiflora var. collina Alice Eastwood 1914-5-30 4529 Contra Costa Mt. Diablo. Comment
  UC1795634  Collinsia sparsiflora var. collina Barbara Ertter, Brad Olson 1992-4-13 10951 Contra Costa Mount Diablo State Park, Knobcone Point Road E of Curry Point 518 Comment
  UC400156  Collinsia sparsiflora var. collina Ynes Mexia 1929-4-21 2376 Contra Costa Moraga Valley Comment
  JEPS18380  Collinsia sparsiflora var. collina Rimo Bacigalupi with F. Chisaki 1957-3-27 5764 Contra Costa 1 mi se Byron (on Byron Hwy) Comment
  JEPS100146  Collinsia sparsiflora var. sparsiflora G. Smick 2003-3-25 GAS 97 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS18245  Collinsia sparsiflora var. sparsiflora Peter H. Raven with Mason, Stone, Ornduff, Kuijt 1957-4-11 10618 Contra Costa 2.4 mi s Curry Creek Recreation Ground (on rd to Livermore) Comment
  JEPS7314  Collinsia tinctoria Mary L. Bowerman 1935-6-1 3117 Contra Costa summit Mount Diablo Mount Diablo, summit (towards Devils Pulpit) 1158 Comment
  JEPS68925  Convolvulus arvensis Edward Lee 1934-9-30 1218 Contra Costa just se station; Moraga Comment
  UCD58755  Convolvulus simulans Glen Holstein 2007-5-1 s.n. Contra Costa Near entrance to Roddy Ranch Golf Course at southeast edge of Antioch. There is a large stock pond about 100 m NW of the entrance. The collection was in disked pasture 100 m west of the pond. Comment
  JEPS111678  Conyza bonariensis D. G. Kelch 2003-8-13 03 .119 Contra Costa Martinez - Train Station 2 Comment
  CDA21753  Conyza canadensis D. G. Kelch, A. G. Murdock 2005-7-14 5 .463 Contra Costa Carquinez Strait Region; Arroyo del Hambre; Franklin Creek near Glen Frazier. Comment
  UC1584663  Conyza canadensis Jerry Powell 1990-8-29 1586 Contra Costa Antioch National Wildlife Refuge Comment
  UC1050401  Coprosma areolata N. Floy Bracelin 1941-9-21 1646 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1005958  Coprosma baueri N. Floy Bracelin 1942-5-10 2071 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC2070532  Cordylanthus pilosus Barbara Ertter with Dan Norris 2000-12-3 Contra Costa Mount Diablo, Camp Force area SE of Curry Point. Comment
  CDA42363  Cordylanthus pilosus subsp. pilosus D. G. Kelch, Vince Guise 2012-7-26 12 .23 Contra Costa Carquinez Strait.; Martinez. Summit of Shady Glen Rd on sandstone outcrop. Comment
  UC1818988  Cornus glabrata Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa 1995-10-22 14538 Contra Costa Three Springs Trail on northeast side of Mt. Diablo, at stream crossing north-facing slope. Comment
  UC692512  Cornus glabrata Mary L. Bowerman 1935-6-21 3150 Contra Costa e. fork Arroyo del Cerro Mt. Diablo 182 Comment
  CDA37420  Cortaderia selloana D. G. Kelch, Mike Perlmutter 2011-9-23 11 .751 Contra Costa Immediately north of Discovery Bay. Comment
  UCD37373  Cortaderia selloana Beecher Crampton 1959-9-3 5456 Contra Costa Contra Costa County, 2 miles southeast of El Sobrante, along San Pablo Dam Road. Comment
  UC692035  Corylus californica Mary L. Bowerman 1931-5-23 894 Contra Costa Alamo Canyon Mount Diablo 487 Comment
  CAS-BOT-BC169515  Corylus cornuta subsp. californica Alice Eastwood 1914-3-6 s.n. Contra Costa Redwood Canyon Comment
  UCSB29429  Corylus cornuta subsp. californica Havlik, Neil 1969-7-3 Contra Costa Grizzly Pk., Berkeley Hills 457 Comment
  UC1622291  Cotoneaster lacteus Barbara Ertter 1997-1-5 15432 Contra Costa at Lime Ridge between Walnut Creek and Clayton (Ygnacio Valley Road); Lime Ridge, Ygnacio Valley Road Comment
  RSA729909  Cotoneaster pannosus Peter F. Zika, B. Ertter 2007-5-11 22967 Contra Costa Near Arlington Boulevard and Brewster Drive, city of El Cerrito (SnFrB = San Francisco Bay Area) 210 Comment
  CHSC23342  Cotula coronopifolia Willis Ball 1975-3-26 508 Contra Costa Contra Loma Regional Park. In area #1. On s side of lake ca. 50 yds. e of restroom facilities. 30 Comment
  JEPS111528  Cotula coronopifolia D. G. Kelch 2005-5-5 05 .212b Contra Costa Point Pinole - Giant Marsh Giant Salt Marsh 3 Comment
  JEPS111659  Cotula coronopifolia A. G. Murdock 2004-3-19 232 Contra Costa Hercules - Carbon 50 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
  UCR182905  Crassocephalum crepidioides G. Fred Hrusa 2006-1-18 16841 A Contra Costa San Pablo, at Stanton and San Pablo Ave Comment
  UC2032831  Crassula connata Doran, Andrew Scott 2012-3-20 701 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  UC1795806  Crassula tillaea Barbara Ertter, Lisa Schultheis 1995-4-27 14018 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; head of west facing scrub-filled draw (east of golf-course). 182 Comment
  UC2028043  Crassula tillaea Barbara Ertter 1998-3-1 15926 Contra Costa Diablo Foothills Regional Park, Ridge Trail on ridge east of Old Borges Ranch. Comment
  CDA19637  Crepis bursifolia Doreen Smith, Wilma Follette 2003-10-25 s.n. Contra Costa San Francisco Bay Area; Briones Park. 0 Comment
  JEPS22096  Cressa truxillensis G. Thomas Robbins 1958-7-19 3907 Contra Costa ca. 3/4 mi. s. Point San Pablo (Potrero San Pablo, Richmond); San Francisco Bay Comment
  UCD150913  Cressa truxillensis James A. Neilson Jr. 1972-11-2 3616 Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 1 Comment
  JEPS100089  Crocanthemum scoparium var. vulgare G. Smick 2003-4-1 GAS 112 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS31075  Crocanthemum scoparium var. vulgare J. B. Davy 1895-1 Contra Costa Moraga Pass Oakland Hills 182 Comment
  CDA15287  Crypsis schoenoides G. F. Hrusa, D. Crowe, R. York 1998-7-17 14726 Contra Costa Sacramento Delta; Dense band outside of lowest part of now dry vernally wet depression within highly disturbed annual grasslands adjacent to on E side of Antioch-Pittsburg Hwy at E end of Dow Chemical property. W/out standing water at this time. Annual. Comment
  RSA720790  Crypsis schoenoides Barbara Ertter, Mary L. Bowerman, Lisa Schultheis, Kevin Hintsa 1995-10-22 14532 Contra Costa Three Spring Trail on northeast side of Mt. Diablo, south of crest of Marsh Creek Rd. Comment
  UCR254745  Crypsis schoenoides Peter Rubtzoff 1968-9-18 5964 Contra Costa North Gate Road, c. 5 miles NW of Mt. Diablo State Park north entrance 58 Comment
  CAS-BOT-BC190136  Crypsis vaginiflora Walter Knight 1977-7-20 s.n. Contra Costa Briones Ridge, Briones Regional Park. 304 Comment
  RSA0028852  Crypsis vaginiflora Barbara Ertter, Richard K. Rabeler, Tony Morosco 1997-6-10 15659 Contra Costa North base of Mount Diablo, pond on Three Springs Road. Comment
  UC691350  Cryptantha clevelandii Mary L. Bowerman 1933-5-18 2129 Contra Costa Southwest of Blackberry Spring Comment
  RSA0029675  Cryptantha corollata Barbara Ertter, Susan D Alcamo 1998-6-12 16165 Contra Costa North Peak Trail from Devil s Elbow on SE side of Mount Diablo summit, steep rocky S-facing bowl. 1037 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
  UC691343  Cryptantha microstachys Mary L. Bowerman 1933-6-3 2226 Contra Costa 2 mi (rd) from Mount Diablo w entrance (= North Gate); Mount Diablo Comment
  UC78683  Cryptantha microstachys Mrs. K. Brandegee May 1890 Contra Costa Brentwood Comment
  UC762463  Cryptantha microstachys R. F. Hoover 1938-5-4 3349 Contra Costa e of Tassajero Creek Comment
  UC691348  Cryptantha muricata Mary L. Bowerman 1933-5-18 2129 a Contra Costa Mount Diablo Comment
  UC691349  Cryptantha muricata Mary L. Bowerman 1934-4-21 2536 Contra Costa Muir Area Mount Diablo Comment
  UC691358  Cryptantha muricata Mary L. Bowerman 1931-5-7 808 Contra Costa North Peak Mount Diablo Comment
  UC691359  Cryptantha muricata Mary L. Bowerman 1933-4-26 1914 Contra Costa North Peak ridge, ese of the peak, s-face Mount Diablo 609 Comment
  JEPS108393  Cryptantha nevadensis David Gowen 2005-4-3 222 Contra Costa Mt. Diablo State Park. Next canyon east of Rhine Canyon and lower down than the trail from Devil's Elbow. Comment
  JEPS67770  Cryptantha nevadensis R. F. Hoover 1938-5-4 3348 Contra Costa e of Tassajero Creek 762 Comment
  UC691393  Cryptantha nevadensis var. rigida Mary L. Bowerman 1932-4-9 1331 Contra Costa Mount Diablo; Inner Black Hills, small ridge E of S spur on meridian Comment
  UC763023  Cryptantha nevadensis var. rigida R. F. Hoover 1938-5-4 3348 Contra Costa Peak E of Tassajero Creek 762 Comment
  UC691339  Cryptantha torreyana Mary L. Bowerman 1930-6-10 299 Contra Costa Mount Diablo Comment
  UC1948929  Cupressus macrocarpa William J. Ferlatte, L. Maynard Moe 1970-4-27 1259 Contra Costa San Francisco Bay: Red Rock Island Comment
  CDA20771  Cuscuta japonica J. Deviney 2006-6-7 PDR 1373527 Contra Costa San Francisco Bay Area; El Cerrito Creek banks at S end of Carlsen Blvd., El Cerrito. Crossing Alameda county line into Albany. Comment
Read comments
Apr 29 2013
  CDA33351  Cuscuta japonica Yost 2008-8-21 PDR# 1454250 Contra Costa El Sobrante; 5709 Skyview Place (near Richmond city limits?) 0 Comment
  CDA33695  Cuscuta japonica Yost 2008-7-18 PDR# 1454447 Contra Costa Richmond; 105 Martin Dr. 0 Comment
  UC1949099  Cuscuta pacifica var. pacifica Barbara Ertter with Elizabeth Neese 1988-10-15 7978 Contra Costa Salicornia marsh W of I-580 in El Cerrito, W side along Rydin Road N of Central Avenue Comment
  UCD126325  Cuscuta salina M. Wiesendanger 1926-6-1 1533 Contra Costa Richmond. Comment
  UCD150917  Cuscuta salina James A. Neilson Jr. 1972-10-21 s.n. Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 0 Comment
  UC691904  Cuscuta subinclusa Mary L. Bowerman 1932-9-17 1587 Contra Costa Donner Canyon, w fork toward mouth Mount Diablo Comment
  RSA0029362  Cuscuta subinclusa Barbara Ertter, Mary L. Bowerman 1996-11-1 15409 Contra Costa North base of Mount Diablo, south end of Hetherington Trail at Donner Creek crossing. Comment
  CDA15290  Cynara cardunculus G. F. Hrusa, D. Crowe, R. York 1998-7-17 14730 Contra Costa Sacramento Delta; E end of Dow Chemical property at Pittsburg. Comment
  CAS-BOT-BC299740  Cynara cardunculus D. E. Breedlove 1969-10-18 16709 Contra Costa Along the roadbank on Deer Hill Road near the junction with Happy Valley Road, Lafayette Comment
  HSC101961  Cynoglossum grande Nikolaus Gillen, Michelle Bihler 2014-3-20 13 Contra Costa Mount Diablo State Park. Eagle Peak Trail. 649 Comment
  UC765557  Cynoglossum grande R. F. Hoover 1938-2-21 2752 Contra Costa Marsh Creek Comment
  CDA43393  Cynosurus echinatus D. G. Kelch 2012-5-27 12 .074 Contra Costa Carquinez Strait Region; Pinole Valley Park. Comment
  UC1819037  Cynosurus echinatus Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14245 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
  SEINET5546123  Cynosurus echinatus E. A. Bernays 1985-1 s.n. Contra Costa Tilden. Comment
  UCD161869  Cyperus James A. Neilson Jr. 1972-10-22 s.n. Contra Costa Contra Costa County. Lower Pine Creek. (Exact location unknown. Coordinates estimated by label maker.) Comment
  SEINET3840900  Cyperus difformis Unknown 2006-9-15 6 .474 Contra Costa Martinez, Shell Avenue, between Pine Street and Harborview Drive 60 Comment
  CAS-BOT-BC114614  Cyperus eragrostis Thomas Morley 1940-12-3 90 Contra Costa Banks at upper end of San Leandro Lake near mouth of Redwood Creek. 129 Comment
  UC691968  Cyperus niger Mary L. Bowerman 1930-10-4 480 Contra Costa Mt. Diablo, Maple Spring Comment
  SEINET3909823  Cyperus niger Louis C. Wheeler 1952-10-2 7000 Contra Costa Mount Diablo: ca. 0.8 mile up from Turtle Ranch, ca. 1 mile downhill from divide in road.; 0 Comment
  JEPS108221  Cystopteris fragilis David Gowen 2005-4-30 276 Contra Costa Morgan Territory Regional Preserve. Growing on stream edge, east of Condor Trail. Comment
  SD243345  Cytisus striatus D. G. Kelch 2007-4-27 07 202 Contra Costa Martinez; on hill NE of Hwy 4 @ Alhambra Road. 79 Comment
  JEPS111628  Daucus pusillus D. G. Kelch 2005-5-1 05 .187 Contra Costa Crockett - Edwards Canyon, near top of canyon. 150 Comment
  JEPS111707  Deinandra corymbosa D. G. Kelch 2004-5-7 04 .179 Contra Costa Ca ada del Cierbo Ca ada del Cierbo 40 Comment
  UC1481555  Deinandra corymbosa Neil Havlik 1980-5-14 917 Contra Costa e side Pt. Pinole Regional Shoreline Comment
  CAS-BOT-BC287385  Deinandra corymbosa Peter H. Raven 1957-7-5 11052 Contra Costa At tip of Point Isabel Comment
  CAS-BOT-BC294015  Deinandra kelloggii Brandegee No date on label s.n. Contra Costa Antioch Comment
  JEPS111706  Deinandra lobbii D. G. Kelch 2004-5-7 04 .178 Contra Costa Ca ada del Cierbo Ca ada del Cierbo 40 Comment
  UC2029061  Deinandra lobbii Barbara Ertter with Delia Taylor 2003-6-22 18225 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, ridge south of Arata Overlook Trail NE of park headquarters east of Somerville Road. Comment
  JEPS20341  Delphinium californicum W. L. Jepson 1918-6-3 7587 Contra Costa n slopes of mt Mt. Diablo, Donner Canyon (by dead streamlet in bottom of canyon) 685 Comment
  UC1795684  Delphinium californicum subsp. interius Barbara Ertter, Mary L. Bowerman 1994-6-19 12841 Contra Costa Mt. Diablo State Park east of Walnut Creek; Muir Picnic Area on Summit Road, 1005 Comment
  UC906518  Delphinium decorum subsp. tracyi P. B. Kennedy 1916-5-21 Contra Costa between Diablo and summit of Mt. Diablo Comment
Read comments
Jun 4 2007
  CAS-BOT-BC10309  Delphinium hesperium Mrs. E. C. Wright 1917-6-1 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC10307  Delphinium hesperium Miss Mary Leolin Bowerman 1938-5-25 3635 Contra Costa North Road 21 miles from North Gate 182 Comment
  RSA721744  Delphinium hesperium Barbara J. Ertter 1995-5-29 14242 Contra Costa S side Mt Diablo, edge of open meadow in flats near head of Curry Creek along road to Sheepherderss Springs from Sloam Road. 427 Comment
  JEPS6231  Delphinium hesperium subsp. hesperium Willis L. Jepson May 23-24 1891 21394 Contra Costa Mt. Diablo Comment
  UC2028329  Delphinium hesperium subsp. hesperium Barbara Ertter with Richard K. Brummitt 1998-5-13 16137 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, head of SE branch of Loughler Loop Trail. Comment
  CAS-BOT-BC10010  Delphinium hesperium subsp. pallescens E. Wright 1917-6-1 S. N. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC10009  Delphinium hesperium subsp. pallescens R. D. Stone 1983-5-17 510 Contra Costa Extreme northern end of the Jackson Ranch, near Alameda County line ca. 9 mi. NE of Livermore and 1 mi. NNE of Brushy 182 Comment
  CAS-BOT-BC10011  Delphinium hesperium subsp. pallescens John Thomas Howell 1934-4-8 11824 Contra Costa South of Antioch Comment
  LA207544  Delphinium hesperium subsp. pallescens Lewis; Epling 1947-5-4 702 Contra Costa Curry Creek Park Road, 1 mi. W of Marsh Creek road Comment
  CAS-BOT-BC9901  Delphinium nudicaule Rimo Bacigalupi 1926-4-30 1353 Contra Costa Summit of Mount Diablo Comment
  UC765793  Delphinium nudicaule R. F. Hoover 1938-5-4 3340 Contra Costa Marsh Creek Canyon Comment
  RSA398660  Delphinium nudicaule John Doyen, Glenn A. Gorelick 1966-4-22 s.n. Contra Costa Russelman Park, Mt. Diablo State Park. 305 Comment
  UC9189  Delphinium parryi subsp. parryi J. Burtt Davy 1895-4-8 975 Contra Costa foothills Antioch Comment
  UC635344  Delphinium patens H. L. Mason 1929-3-29 5136 Contra Costa Marsh Creek Rd 2 mi above Clayton Comment
  UC2027926  Delphinium patens subsp. patens Barbara Ertter with Linda Vorobik 2001-3-24 17571 Contra Costa Lime Ridge Open Space east of Walnut Creek, eastern edge overlooking Crystal Springs subdivision. Comment
  OBI10610  Delphinium recurvatum Robert F. Hoover 1967-4-28 10511 Contra Costa Byron Hot Springs Comment
  LA207610  Delphinium recurvatum Carl Epling; G. Miles 1945-3-23 542 Contra Costa 5 mi. W Tracy- Byron Road on rd. to Byron Hot Springs Comment
  JEPS62388  Delphinium variegatum W. L. Jepson 1922-5-23 9658 Contra Costa Mt. Diablo Comment
  UC199142  Delphinium variegatum Chesnut and Drew 1887-4-16 Contra Costa Clayton Comment
  UCSB11260  Delphinium variegatum Hayes, Judy 1961-3-30 Contra Costa South Gate of Mount Diablo State Park 182 Comment
  UC13975  Delphinium variegatum subsp. variegatum Chestnut and Drew 1889-4-6 Contra Costa Concord Comment
  CAS-BOT-BC11023  Dendromecon rigida W. W. Carruth 1907-5-1 s.n. Contra Costa Moraga Valley Comment
  UC634890  Dendromecon rigida H. L. Mason 1925-1-11 1177 Contra Costa Moraga Ridge Comment
  CHSC118029  Deschampsia elongata Barbara Ertter 1999-6-12 16710 Contra Costa Black Hawk Ridge road on south side of Mount Diablo, road crossing at confluence of NE and E forks of Sycamore Creek. 396 Comment
  UC1133877  Dichelostemma capitatum C. M. Belshaw 1936-5-8 2060 Contra Costa se slope Mt. Diablo; Mt. Diablo Quad. 990 Comment
  UC30118  Dichelostemma capitatum W. C. Blasdale 1896-2-28 Contra Costa Clayton Comment
  CAS-BOT-BC500091  Dichelostemma capitatum John Thomas Howell 1944-7-17 19831 Contra Costa Canyon of Snow Basin Creek Comment
  CAS-BOT-BC500092  Dichelostemma capitatum Jeanne R. Janish; Edward Janish 1948-3-23 244 Contra Costa Open hillside of Stony Gorge Dam, Elk Creek. Comment
  RSA0031305  Dichelostemma congestum Barbara Ertter 2000-5-14 17006 Contra Costa Donner Canyon on north side of Mount Diablo, SW end of Falls Trail between Middle Trail and Donner Creek crossing. 457 Comment
  UC1300935  Dichelostemma congestum Helen K. Sharsmith 1962-5-20 5071 Contra Costa ne slope Mount Diablo (Headwaters of Marsh Creek); San Francisco Bay Region, , Marsh Creek 304 Comment
  UC2027848  Digitaria sanguinalis Barbara Ertter with Mary Bowerman 1996-11-1 15400 Contra Costa North base of Mount Diablo, near Donner Canyon trailhead at end of Regency Drive. Comment
  CAS-BOT-BC121844  Dirca occidentalis Charles M. Belshaw 1935-3-3 372 Contra Costa On NE slope of Bald Peak Comment
  CDA37269  Dirca occidentalis D. G. Kelch 2010-1-17 10 .31-B Contra Costa Carquinez Strait Region; Upper North Fork of Rodeo Creek, immediately west of Cummings Skyway. Comment
  JEPS78104  Dirca occidentalis G. W. Zamzow 1973-2-23 126 Contra Costa Wildcat Canyon East Bay Regional Park Comment
  LA209792  Dirca occidentalis Joseph Andorfer Ewan; 1934-3-10 8643 Contra Costa Wildcat Canyon, 2 mi below Orinda Rd bridge, Comment
  UC400146  Disporum hookeri Ynes Mexia 1929-4-21 2387 Contra Costa Moraga Valley Comment
  UC792333  Disporum hookeri J. A. Rattenbury 1948-3-8 96 Contra Costa on s side of road nr creek 1/2 mi e of Oakland Tunnel 213 Comment
  POM194543  Disporum hookeri var. hookeri Ynes Mexia 1929-4-21 2387 Contra Costa Moraga Valley. Comment
  CDA37339  Dittrichia graveolens D. G. Kelch 2010-10-31 10 .444 Contra Costa Valley north of Alhambra Valley Rd., south of Pinole Peak, east of Hercules. Comment
  CDA4506  Dittrichia graveolens J. K. Balciunas 2006-6-12 191 Contra Costa Marina Way S. and Hall Avenue, Richmond. 0 Comment
  UC407372  Downingia insignis Ira L. Wiggins 1930-4-17 4570 Contra Costa 0.25 mi s Byron Comment
  UC766347  Downingia insignis R. F. Hoover 1941-4-12 4839 Contra Costa 1 mi n Lone Tree Valley Comment
  UC725662  Downingia ornatissima var. eximia A. A. Heller 1942-4-20 16432 Contra Costa w of Antioch (near the golf links) Comment
  JEPS14440  Downingia pulchella W. L. Jepson May 23 1891-May 24 1891 21212 Contra Costa Mt. Diablo Comment
  UC691090  Drymocallis glandulosa var. wrangelliana Mary L. Bowerman 1931-4-19 748 Contra Costa Mitchell Canyon Mount Diablo, Mitchell Canyon Comment
  UC691098  Drymocallis glandulosa var. wrangelliana Mary L. Bowerman 1933-5-22 2172 Contra Costa on north face w 1970 (Mount Diablo); Inner Black Hills, Mount Diablo Comment
  CAS-BOT-BC70864  Dryopteris arguta Mary L. Bowerman 1930-6-18 342 Contra Costa Dan Cook Canyon Comment
  UC692113  Dryopteris arguta Mary L. Bowerman 1930-6-18 342 Contra Costa Dan Cook Canyon; Mt. Diablo Comment
  UCD158709  Dysphania James A. Neilson Jr. 1972-10-22 3623 a Contra Costa Contra Costa County. Lower Pine Creek. (Elevation estimated using Google Earth by label maker.) 15 Comment
  JEPS107109  Echinochloa crus-galli Barbara Ertter, Kristin Ertter 1995-7-11 14486 Contra Costa West side of Mt Diablo; mudflat around inlet to Pine Pond. Comment
  RSA0029360  Echinochloa crus-galli Barbara Ertter 1996-11-24 15421 Contra Costa West side of Mount Diablo, upstream from Pine Pond along Stage Road in Pine Canyon, floodplain at junction with Dusty Road. Comment
  JEPS99514  Elatine brachysperma Mary Bowerman 1975-9-14 Contra Costa Mount Diablo, Hidden Pond. Comment
  RSA721590  Elatine brachysperma Mary L. Bowerman 1975-9-14 s.n. Contra Costa Mount Diablo. Comment
  UC691972  Eleocharis macrostachya Mary Bowerman 1935-6-21 3152 Contra Costa S of Turtle Rock (pool E of main pond); Mount Diablo Comment
  CAS-BOT-BC112796  Eleocharis macrostachya Walter Knight 1979-6-15 3381 Contra Costa Botany Cove, Browns Island Comment
  SEINET10747423  Eleocharis macrostachya Barbara J. Ertter 1991-9-28 Ertter 10836 Contra Costa San Pablo Reservoir between Orinda and El Sobrante, dried mud flats at S en of reservoir, 91 Comment
  UC1818864  Eleocharis macrostachya Barbara Ertter, Kristin Ertter 1995-7-11 14471 Contra Costa Sulfur Spring on Pine Cr, Diblo Foothill Regional Park, marshy wet ground. 121 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
  SEINET7714036  Ellisia chrysanthemifolia Chesnut, Drew 1889-4-15 Contra Costa Martinez 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
  UC756632  Elymus G. L. Stebbins Jr. 1946-6-9 3657 Contra Costa 2 mi e El Cerrito (near Mira Vista Country Club) Comment
  RSA108337  Elymus X gouldii Frank W. Gould 1941-5-6 1288 Contra Costa 2.3 miles from Walnut Creek on Danville road. Comment
  RSA264278  Elymus X gouldii A. A. Beetle 1941-6-24 1751 Contra Costa Pt. Richmond on San Francisco Bay Comment
  UCD149009  Elymus caput-medusae D. Kelch; Troy McGregor; Ed Biffin 2010-6-1 10. 226 Contra Costa Mt. Diablo. Knobcone Point Road. 542 Comment
  CAS-BOT-BC227138  Elymus elymoides Roxana S. Ferris 1924-6-14 4090 Contra Costa Summit of Mt Diablo Comment
  UC579852  Elymus glaucus Annetta Carter 1936-4-19 1115 Contra Costa Red Rock San Francisco Bay (n edge of hollow on e side of island) Comment
  SEINET10558327  Elymus glaucus var. jepsonii Willis L. Jepson 1943-6-8 Jepson 20848 Contra Costa Northeast slope in woods. Moraga Ridge. 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
  UCD62502  Elymus multisetus Beecher Crampton 1956-5-14 3425 Contra Costa Above Port Costa Brick Works, 4 miles west of Martinez on the road to Crockett. Comment
  UC2028480  Elymus multisetus Barbara Ertter with Richard K. Brummitt 1998-5-6 16103 Contra Costa Point San Pablo west of Richmond, crest of road to yacht harbor Comment
  UC691178  Elymus trachycaulus Mary L. Bowerman 1935-6-15 3128 Contra Costa ridge running n from Mitchell-Pine divide (at 3100 ft level); Mount Diablo 868 Comment
  CAS-BOT-BC204317  Elymus trachycaulus subsp. trachycaulus Mary L. Bowerman 1935-5-18 3030 Contra Costa Mount Diablo. Meridian Peak north of the summit parking area 1066 Comment
  UC672376  Emmenanthe penduliflora Herbert L. Mason 1928-4-22 4434 Contra Costa Sycamore Canyon, south slope of Mount Diablo Comment
  UC101786  Epilobium campestre Katharine Brandegee 1907-6-16 Contra Costa near S.P. Station; Antioch Comment
  CAS-BOT-BC166168  Epilobium canum subsp. canum H. E. McMinn 92 Contra Costa From n. slope of Mt. Diablo near the summit Comment
  UC2062662  Epilobium canum subsp. canum Barbara Ertter 2000-10-26 17548 Contra Costa West side Mount Diablo near pothole ponds on clay hillside along lower Barbeque Terrace Road in upper Pine Canyon. Comment
  UC692096  Epipactis gigantea Mary L. Bowerman 1931-5-28 906 Contra Costa Castle Rock Ranch Mount Diablo, Pine Canyon (e end, gully to s, on dry waterfall between two pools) Comment
  UC692135  Equisetum X ferrissii Mary L. Bowerman 1938-9-17 3720 Contra Costa Willow Spring; Mt. Diablo Comment
  UC692136  Equisetum hyemale subsp. affine Mary L. Bowerman 1930-8-24 432 Contra Costa <a> little above end of rd. Mitchell Canyon 251 Comment
  CAS-BOT-BC57135  Equisetum hyemale subsp. affine Mary L. Bowerman 1935-3-16 2744 Contra Costa Arroyo del Cerro, east fork: Ten feet below spring 289 Comment
  UC692076  Equisetum hyemale subsp. affine Mary L. Bowerman 1935-3-16 2744 Contra Costa e fork Arroyo del Cerro (10 ft below spring); Mt.Diablo 289 Comment
  CDA2083  Eragrostis curvula H. R. VanBrocklin 1961-4-12 Contra Costa North side Marsh Creek Road, 1 mile east of Clayton. 0 Comment
  CAS-BOT-BC204546  Eragrostis curvula R. E. Frenkel 1964-8-17 865 Contra Costa Ca. 1 mile east of Clayton on road shoulder of Marsh Creek Road 182 Comment
  CDA4553  Erechtites glomeratus D. G. Kelch 2005-5-5 5 .218 Contra Costa Carquinez Strait Region; Point Pinole - Giant Marsh. Giant Salt Marsh. Comment
  JEPS111955  Eremocarpus setiger D. G. Kelch 2004-7-16 04 .320 Contra Costa Martinez - South Pine St. Entrance to Rte 4 heading west 70 Comment
  JEPS103959  Eriastrum abramsii David Gowen 2003-7-2 12 Contra Costa E of Clayton (edge of fire road and on trail that follows shoulder of ridge (above Chaparral Spring) easterly; N of Marsh Creek Road; Clayton Quadrangle, eastern edge) 487 Comment
  JEPS116791  Eriastrum abramsii David Gowen 2006-6-14 609 Contra Costa Morgan Territory Regional Park; ; ; At the NW end of Eagle Trail. Comment
  UC691864  Ericameria arborescens Mary L. Bowerman 1933-9-9 2438 Contra Costa ridge above Frog Pond; Mt. Diablo Comment
  CDA20135  Ericameria linearifolia E. Fisher 2003-5-12 EF 1 -03 Contra Costa San Francisco Bay Area; Mt Diablo State Park, summit of Mt Diablo. 0 Comment
  RSA72858  Ericameria linearifolia A. Kellogg, W. G. W. Harford 1868-5-28 548 Contra Costa Mt. Diablo Comment
  UC1118741  Ericameria linearifolia R. W. Lundh 1932-9-22 164 Contra Costa Mt. Diablo Mt. Diablo Quadrangle, Mt. Diablo Comment
  UC697206  Ericameria linearifolia Mary L. Bowerman 1938-5-28 3649 Contra Costa Silver Creek Nook Mount Diablo, Silver Creek Nook (North Road, peeping out from under a willow) 640 Comment
  UCSB10767  Ericameria linearifolia Hayes, Judy 1961-3-30 Contra Costa 2 miles N of South Gate of Mt. Diablo State Park 457 Comment
  CAS-BOT-BC300590  Erigeron foliosus var. franciscensis L. R. Abrams 1916-6-30 5701 Contra Costa Mt. Diablo near lake Comment
  JEPS79321  Erigeron foliosus var. franciscensis Edward Lee with Annetta Carter 1935-8-17 1633 Contra Costa Antioch sand-dunes Comment
  UC1606301  Erigeron foliosus var. franciscensis Barbara Ertter with Lynne Hosley and Sid Cowles 1992-6-7 11083 Contra Costa small knoll e Round Top; Oakland Hills, Sibley Volcanic Regional Preserve Comment
  UC87533  Erigeron foliosus var. franciscensis T. S. Brandegee 1883-7-1 Contra Costa Antioch Comment
  UC31418  Erigeron lonchophyllus F. P. McLean 1875-3-1 Contra Costa Mt. Diablo Comment
  RSA401487B  Eriodictyon californicum H. de Forest 1930-4-6 s.n. Contra Costa SE of Mortoville, Small coal mine ravine. Comment
  CAS-BOT-BC248088  Eriogonum angulosum H. M. Hall 1916-8-17 10276 Contra Costa Deer Valley 182 Comment
  JEPS12794  Eriogonum angulosum Rimo Bacigalupi with G. T. Robbins 1955-5-4 4986 Contra Costa along Santa Fe railroad right-of-way, parallelling the Orwood road on the Orwood tract, close to its crossing of Indian Slough San Joaquin Delta Region, Indian Slough 6 Comment
  CAS-BOT-BC248089  Eriogonum angulosum Rimo Bacigalupi; G. T. Robbins 1955-5-4 4986 Contra Costa Along Santa Fe railroad right-of-way, paralleling the Orwood road on the Orwood Tract, close to its crossing of Indian Slough, San Joaquin River delta region 6 Comment
  CDA22474  Eriogonum angulosum J. Simmen 1958-11-6 1515 -58 Contra Costa Palm Tract, Brentwood. 0 Comment
  UC2029056  Eriogonum angulosum Barbara Ertter with Delia Taylor 2003-6-22 18226 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
  CDA22594  Eriogonum fasciculatum var. foliolosum A. G. Murdock, D. G. Kelch 2004-3-19 233 Contra Costa Carquinez Strait; Hercules - Carbon. Comment
  UC1032304  Eriogonum gracile G. T. Nordstrom 1937-10-28 1409 Contra Costa 1.6 mi nne Somersville; Mt. Diablo Quadrangle Comment
  UC691087  Eriogonum gracile Mary L. Bowerman 1932-8-27 1524 Contra Costa s Turtle Rock; Mount Diablo Comment
  UC2028232  Eriogonum gracile Barbara Ertter 1998-11-15 16464 Contra Costa North side Mount Olympia on north side Mount Diablo. Comment
  UC692018  Eriogonum gracile var. gracile Mary L. Bowerman 1932-11-11 1639 Contra Costa Little below Moses Rock Spring (ridge leading up from Buckle Point (on west road)); Mount Diablo Comment
  UC737822  Eriogonum luteolum var. luteolum R. F. Hoover 1940-11-23 4693 Contra Costa 8 mi e on Marsh Creek Road Clayton Comment
  CAS-BOT-BC259522  Eriogonum luteolum var. luteolum Robert F. Hoover 1937-9-2 2714 Contra Costa Lower Marsh Creek canyon Comment
  JEPS116767  Eriogonum luteolum var. luteolum David Gowen 2006-7-5 634 Contra Costa North of Morgan Territory Regional Preserve. Steep chaparral slope on east side of Hog Canyon (Sycamore Creek). Comment
  UC692045  Eriogonum nudum var. auriculatum Mary L. Bowerman 1930-8-24 424 Contra Costa Mitchell Canyon, lower trail Mount Diablo Comment
  UC692046  Eriogonum nudum var. auriculatum Mary L. Bowerman 1931-9-12 1037 Contra Costa Mitchell Canyon, spur jutting out into w fork Mount Diablo 838 Comment
  CAS-BOT-BC268911  Eriogonum nudum var. auriculatum Peter Rubtzoff 1951-10-7 813 Contra Costa 1 to 2 mi. southwest of Moraga Comment
  CAS-BOT-BC268912  Eriogonum nudum var. auriculatum Annetta Carter 1940-6-22 1601 Contra Costa Mount Diablo. Lime Ridge 274 Comment
  UC1167551  Eriogonum nudum var. psychicola R. W. Thorp 1958-8-20 20 Contra Costa Antioch Comment
Read comments
Aug 24 2011
  UC692195  Eriogonum nudum var. pubiflorum Mary L. Bowerman 1932-9-17 1586 Contra Costa Donner Canoyn, w fork toward mouth Mount Diablo Comment
  UC692196  Eriogonum nudum var. pubiflorum Mary L. Bowerman 1932-9-17 1586 Contra Costa Donner Canoyn, w fork toward mouth Mount Diablo Comment
  CAS-BOT-BC253092  Eriogonum roseum R. F. Hoover 1940-11-30 4699 Contra Costa 2 mi. S of Antioch Comment
  JEPS56455  Eriogonum roseum Willis L. Jepson 1895-9-14 14779 Contra Costa Walnut Creek Comment
  SBBG28221  Eriogonum roseum J. Ewan 1933-10-15 8022 Contra Costa Mt Diablo Comment
  POM89812  Eriogonum truncatum M. K. Curran 1886-05 s.n. Contra Costa Antioch Comment
  RSA65310  Eriogonum truncatum J. T. Howell 1934-4-8 11816 Contra Costa 10 miles from Clayton on Marsh Creek Road Comment
  SBBG65483  Eriogonum truncatum M. K. Curran -May-1886 Contra Costa Antioch Comment
  UC6492 Image available Eriogonum truncatum State Survey 1862-5-29 1186 Contra Costa Camp 71, Marsh's Ranch, Contra Costa Co. Comment
  CAS-BOT-BC262347  Eriogonum vimineum Mary L. Bowerman 1930-9-27 468 Contra Costa Mount Diablo. West base spring Comment
  CAS-BOT-BC298506  Eriophyllum confertiflorum L. Constance 1933-6-25 E 95 Contra Costa About halfway to the summit of Mount Diablo Comment
  JEPS99951  Eriophyllum confertiflorum var. confertiflorum G. Smick 2003-5-13 GAS 187 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC300926  Eriophyllum jepsonii John Thomas Howell 1950-7-5 26636 Contra Costa Above Nortonville Comment
  CDA10029  Eriophyllum jepsonii D. G. Kelch 2007-4-28 7 .203 Contra Costa Mitchell Canyon. Mt Diablo. Comment
  UC507130  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-6-25 E 98 Contra Costa summit Mount Diablo 1158 Comment
  UC507133  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-6-25 E 101 Contra Costa just below summit on south slope Mount Diablo 1158 Comment
  UC697147  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1938-6-14 3687 Contra Costa 0.3 mi below Muir Area Mt. Diablo 960 Comment
  CAS-BOT-BC300965  Eriophyllum lanatum var. achilleoides L. Constance 1933-6-25 E 101 Contra Costa South slope, just below summit of Mount Diablo 1066 Comment
  CAS-BOT-BC300980  Eriophyllum lanatum var. achilleoides L. Constance 1933-6-25 E 97 Contra Costa South slope, 1 mile below summit of Mt. Diablo Comment
  UC1584825  Eriophyllum staechadifolium Jerry Powell 1987-7-14 1504 Contra Costa sandstone bluff and back edge of point Molate Beach Comment
  CAS-BOT-BC301910  Eriophyllum staechadifolium H. E. McMinn No date on label 139 Contra Costa Unspecified Comment
  UC692708  Erodium botrys Mary L. Bowerman 1931-3-14 571 Contra Costa Windy Point Mount Diablo Comment
  UC17062  Erodium macrophyllum J. Burtt Davy 1895-4-7 945 Contra Costa Antioch Comment
  UC606754  Erodium moschatum Edward Lee 1936-4-10 1995 Contra Costa Red Rock San Francisco Bay 54 Comment
  UC21040  Eryngium aristulatum var. aristulatum Jos. Burtt Davy 1900-6-7 6660 Contra Costa near Martinez Comment
  UC691871  Eryngium castrense Mary L. Bowerman 1935-6-28 3174 Contra Costa s. Meridian Peak summit (300 yds. e. of meridian fence line); Mt. Diablo 487 Comment
  UC692318  Eryngium castrense Mary L. Bowerman 1935-6-28 3169 Contra Costa Mt. Diablo, Chase Pond 548 Comment
  CDA9196  Eryngium jepsonii Christopher Thayer 2000-5-26 s.n. Contra Costa On moist, grassy slope just south of boundary of Rossmoor. Lucas Ranch, Lafayette. 0 Comment
  UC1487327  Eryngium vaseyi Yusuf Sheikh 1974-5-5 587 B Contra Costa 2.1 mi. s.e. of Byron Post sign on rd. J4 Byron (3.1 mi. s.e. of intersection with Camino Diablo) Comment
  UC1745504  Eryngium vaseyi Annetta M. Carter, Tom Morley, Malcolm Nobs 1951-3-25 3006 Contra Costa 3.3 mi. S of Byron. Comment
  UC764567  Eryngium vaseyi Alice Eastwood and John Thomas Howell 1935-4-7 2121 Contra Costa near Byron (on Marsh Creek Rd.) Comment
  CAS-BOT-BC40775  Erysimum capitatum James McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  CAS-BOT-BC40763  Erysimum capitatum John Thomas Howell 1926-3-7 1672 Contra Costa Mount Diablo. Near the summit on south side. Comment
  NY32656  Erysimum capitatum subsp. angustatum A. Eastwood 1936-4-19 2151 Contra Costa Antioch sand hills. Comment
  RSA0008588  Erysimum capitatum var. angustatum G. B. Rossbach, Ruth P. Rossbach 1938-6-5 858 Contra Costa Along tidal estuary of San Joaquin River, just east of Antioch Comment
  POM272910  Erysimum capitatum var. capitatum Lyman Benson 1935-3-16 6261 Contra Costa Mt. Diablo, Watershed: Walnut Creek; Mountain Range: Mt. Diablo. 915 Comment
  SBBG92005  Erysimum capitatum var. capitatum H. L. Mason 1933-4-9 7189 Contra Costa E of Antioch along the San Joaquin River 12 Comment
  UC10532  Erysimum capitatum var. capitatum J. Burtt Davy 1895-4-7 876 Contra Costa Antioch Comment
  UC534852  Erysimum capitatum var. capitatum H. L. Mason 1933-4-9 7189 Contra Costa sand hills along river e Antioch; San Joaquin River 12 Comment
  UC673518  Erysimum capitatum var. capitatum H. L. Mason 1931-4-5 5822 Contra Costa Antioch sand hills Comment
  CAS-BOT-BC151467  Erythranthe latidens Alice Eastwood; John Thomas Howell 1936-4-19 2155 Contra Costa 4 miles s. of Antioch Comment
  CAS-BOT-BC402988  Eschscholzia californica James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC402989  Eschscholzia californica Peter H. Raven 1950-7-5 2497 Contra Costa Above Nortonville Comment
  CAS-BOT-BC402994  Eschscholzia californica Brandegee 1889-5-1 s.n. Contra Costa Antioch Comment
  UC9998  Eschscholzia californica W. H. Brewer 1862-8-22 1136 Contra Costa Mt. Diablo; by hills Comment
Read comments
Nov 29 2009
  CDA24555  Eschscholzia californica subsp. californica D. G. Kelch 2006-7-14 6 .335 Contra Costa Between Rte 4 and Carbon Rd. E Rodeo. Comment
  UCSB5236  Eucrypta chrysanthemifolia Kamb, Peter; Chisaki, Francia 1950-3-18 Contra Costa Black Hills, S of Mt. Diablo, on south road to Mt. Diablo from Danville 365 Comment
  JEPS1727  Eucrypta chrysanthemifolia var. chrysanthemifolia W. L. Jepson 1891-6-9 21003 Contra Costa Fish Ranch Road; Berkeley Hills Comment
  UC1613298  Eucrypta chrysanthemifolia var. chrysanthemifolia Charles M. Belshaw 1935-6-24 1022 Contra Costa Sobrante Hills Comment
  UC2027960  Euphorbia maculata Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15666 Contra Costa Miller Knox Regional Shoreline south of Richmond, parking area for Richmond Ramblers. Comment
  CDA17966  Euphorbia oblongata R. M. Case 1999-10-5 PDR 004978 Contra Costa Central California; Wildcat Canyon Rd. at Tilden Park Golf Course above Berkeley. 0 Comment
  JEPS100097  Euphorbia oblongata G. Smick 2003-5-6 GAS 173 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCR99454  Euphorbia oblongata L. C. Wheeler 1958-8-26 7446 Contra Costa c. 2 mi. SW of Martinez, 0.3 mi. NW of Glen Frazer on Santa Fe; apparently Franklin Canyon, 1.7 mi. west of Martinez at limit on California Route 4 Comment
  SD215496  Euphorbia oblongata Louis C. Wheeler 1958-8-28 7446 Contra Costa Circa 2 miles southwest of Martinez, 0.3 miles northwest of Glen Frazer on Santa Fe, apparently Franklin Canyon. 1.7 miles west of Martinez at limit on California Route 4. Comment
  UC1818929  Euphorbia spathulata Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14586 Contra Costa East side of Mt. Diablo, access from Morgan Territory Rd. to Prospectors Gap Rd., gate between archery range and private ranch, open oak woodland. Comment
  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
  UC1999853  Eurybia radulina J. C. Semple, B. A. Suripto, T. Ahmed 1990-8-16 9340 Contra Costa Charles Tilden Reg. Park; Vollmer Peak. Comment
  UC691232  Festuca elmeri Mary L. Bowerman 1935-5-3 2963 Contra Costa Sloan Road Mount Diablo 487 Comment
  CDA21547  Festuca idahoensis D. G. Kelch 2000-4-9 0 .14 Contra Costa Altamont Hills; 1.5 miles E of Midway on old roadcut between RR tracks and Via Nicolo Road. Comment
  UC2028438  Ficus carica Barbara Ertter with Chris Thayer 1996-10-25 15356 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park Comment
  SEINET3562429 Image available Forestiera neomexicana Lewis S. Rose 1932-5-26 32117 Contra Costa Nortonville. Comment
  UC691116  Fragaria vesca Mary L. Bowerman 1933-4-28 1893 Contra Costa e fork at water trough Curry Cave Point trail; Mount Diablo 457 Comment
  CAS-BOT-BC52534  Frangula californica subsp. californica Mary L. Bowerman 1930-8-31 451 a Contra Costa Inner Black Hills, Sloan Road east of the Sloan place Comment
  SEINET7417539 Image available Frangula californica subsp. californica L. J. Musselman 1970-7-26 3769 Contra Costa W slope of Mount Diablo 1067 Comment
  CAS-BOT-BC62923  Frangula californica subsp. tomentella L. R. Abrams 1916-6-30 5706 Contra Costa Mt. Diablo near Lake. Comment
  CDA8373  Frankenia salina A. G. Murdock, D. G. Kelch 2005-3-24 319 Contra Costa Carquinez Strait; Point Pinole. Comment
  CHSC99192  Frankenia salina John Dittes 2006-10-26 1413 Contra Costa San Joaquin Valley (foothills near nw edge); ~ 2.0 air-mile south of Marsh Creek Reservoir Gauging Station, 1.6 air-mile southwest of intersection of Camino Diablo and Vasco Road; Contra Costa Water District's Los Vaqueros Watershed Mitigation Project Area. 67 Comment
  RSA739727  Frankenia salina John Dittes 2006-10-26 1413 Contra Costa San Joaquin Valley (foothills near NW edge) 2 air mile S of Marsh Creek Reservoir Gauging Station, 1.6 air mile SW of intersection of Camino Diablo and Vasco Road, Contra Costa Water District's Los Vaqueros Watershed Mitigation. 67 Comment
  CAS-BOT-BC223859  Frankenia salina John Thomas Howell; Gordon H. True 1972-6-29 48919 Contra Costa On Byron Hot Springs Road southeast of Byron, Contra Costa Comment
  POM300679  Fraxinus dipetala Mary L. Bowerman 1935-6-1 3104 Contra Costa Mount Diablo: First small ridge east of Mitchell-Pine divide 976 Comment
  JEPS16560  Fremontodendron californicum H. H. Haworth 1917-5-3 Contra Costa Redwood Peak, Oakland Hills Comment
  JEPS61961  Fritillaria affinis W. L. Jepson 1921-5-22 9218 Contra Costa Mount Diablo, half way up Mount Diablo Comment
  CDA28719  Fritillaria affinis G. D. Barbe, Dick Ramsey 1962-4-19 667 Contra Costa Morgan Territory Road east side of Mount Diablo, 8.5 miles S/ Clayton. 0 Comment
  CAS-BOT-BC130353  Fritillaria liliacea Robert F. Hoover 1938-3-8 2819 Contra Costa Berkeley Country Club Comment
  UCR263793  Fumaria capreolata Barbara Ertter 1999-3-21 16486 Contra Costa Central Coast, Miller Knox Regional Park near Point Richmond, southeast of Richmond Ramblers building 15 Comment
  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
  SEINET11170982  Galium andrewsii M. S. Baker 1904-6-24 s.n. Contra Costa Near Summit of Mt. Diablo, Mitchel Canyon Trail Comment
  UC691532  Galium andrewsii subsp. gatense Mary L. Bowerman 1930-6-7 283 Contra Costa summit Mount Diablo Comment
  JEPS112106  Galium aparine D. G. Kelch 2003-4-3 03 .352 Contra Costa Cummings Skyway South of Cummings Skyway and Crockett Blvd 134 Comment
  UC1039519  Galium aparine Herbert L. Mason 1932-3-20 6840 Contra Costa Antioch sand hills Comment
  CDA33985  Galium aparine D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .11 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  JEPS14519  Galium murale L. T. Dempster 1956-5-26 1004 Contra Costa hill above Overhill Ct.; Orinda Comment
  UCD121835  Galium nuttallii Laurence S. Jones 1934-4-8 s.n. Contra Costa West slope of Mt. Diablo. 609 Comment
  UC2028293  Galium parisiense Barbara Ertter with Dan Norris 1998-6-18 16221 Contra Costa West of Rock City area on south side of Mount Diablo, saddle on W Fossil Ridge Trail. Comment
  JEPS112107  Galium porrigens var. porrigens D. G. Kelch 2003-4-3 03 .357 Contra Costa Cummings Skyway 134 Comment
  JEPS75526  Galium porrigens var. porrigens P. F. Yorks 1975-6-10 434 Contra Costa on Hampton Rd ca 1.4 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  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
  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-BC200634  Garrya elliptica John Thomas Howell 1925-9-12 1437 Contra Costa Oakland Hills at head of San Leandro Canyon Comment
  UC634816  Garrya elliptica H. L. Mason 1925-9-12 2223 Contra Costa head of San Leandro Creek Canyon; Oakland Hills Comment
  UC692507  Garrya elliptica Mary L. Bowerman 1932-1-30 1082 Contra Costa Inner Black Hills Mount Diablo (nw corner of basin of ne fork of Sycamore Creek) Comment
  UCD121109  Garrya elliptica Beecher Crampton 1957-11-20 4651 Contra Costa Berkeley Hills. Contra Costa- Alameda County line. Comment
  CAS-BOT-BC178550  Garrya flavescens H. E. McMinn 1922-6-13 230 Contra Costa Unspecified Comment
  CDA28816  Gastridium phleoides D. G. Kelch, Abigail Moore, Jessica Kolman 2009-5-3 9 .316 Contra Costa Carquinez Strait; Crockett; on hill south of 5th St. with transmission tower on sandstone outcrop. Comment
  SEINET10963567  Gastridium phleoides Virginia E. Long 1933-6-14 Long 224 a Contra Costa Mt. Diablo. Grassy ridge of Curry Cave trail. 366 Comment
  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
  UC1607581  Genista monspessulana Barbara Ertter 1991-5-12 9816 Contra Costa sw corner El Cerrito (Point Isabel Regional Shoreline, on San Francisco Bay); San Francisco Bay Comment
  CHSC25033  Geranium carolinianum Willis Ball 1975-3-26 512 Contra Costa Contra Loma Regional Park. In area #8. At the base of a large hill ca. 200 yds s of main parking lot at s end of lake. 60 Comment
  UC17121  Geranium carolinianum State Survey 1862-4-26 998 Contra Costa near Martinez Comment
  UC692709  Geranium carolinianum Mary L. Bowerman 1935-5-25 3076 Contra Costa Rhine Canyon Mount Diablo 914 Comment
  UC2032836  Geranium dissectum Doran, Andrew Scott 2012-3-20 706 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  JEPS99600  Geranium molle Mary Bowerman 1978-4-17 Contra Costa Mount Diablo, Back Canyon. 259 Comment
  HSC98492  Geranium rotundifolium Barbara Ertter 1996-6-4 14684 Contra Costa Tilden Regional Park in hills E of Berkeley, restoration site NE of junction of Grizzly Peak Blvd. and Golf Course Dr. Comment
  UC691627  Gilia achilleifolia subsp. achilleifolia Mary L. Bowerman 1933-5-9 2059 Contra Costa Muir Area , Muir Area (Mount Diablo) Comment
  UC23730  Gilia achilleifolia subsp. multicaulis Bolander April 1866 6400 Contra Costa Mt. Diablo Comment
  UC908902  Gilia achilleifolia subsp. multicaulis Herbert L. Mason 1928-4-15 4357 Contra Costa top of Morago Ridge Morago Ridge Comment
  UC963984  Gilia achilleifolia subsp. multicaulis R. F. Hoover 1941-4-11 4831 Contra Costa Marsh Creek Canyon Comment
  SBBG122849  Gilia achilleifolia subsp. multicaulis B. Ertter, T. Morosco, L. Hosley 1995-5-29 14226 Contra Costa knoll ca. 0.5 mi N of Curry Pt, Mt Diablo 487 Comment
  RSA276842  Gilia capitata subsp. staminea James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  UC908108  Gilia capitata subsp. staminea Herbert L. Mason 1929-3-31 5159 Contra Costa Antioch; San Joaquin River Comment
  UC2027812  Gilia clivorum Barbara Ertter with Stu Garrett 1997-3-29 15541 Contra Costa West side Mount Diablo, Mothers Trail. Comment
  CHSC21634  Gilia tricolor Willis Ball 1975-3-9 489 Contra Costa Contra Loma Regional Park. In area #8. Level mound ca. 450 yds s of main parking lot ca. 750 yds w of Contra Loma Blvd. 76 Comment
  SEINET10464449  Githopsis diffusa subsp. robusta Bowerman 1933-6-7 BOWERMAN 2260 Contra Costa North Peak; Bare rocks by register Comment
  CDA6000  Gnaphalium canescens subsp. beneolens D. G. Kelch, A. G. Murdock 2004-7-16 4 .318 Contra Costa Carquinez Strait Region; Martinez-South: Pine Street entrance to Route 4 heading west. Comment
  RSA721738  Gnaphalium canescens subsp. beneolens Barbara Ertter, Kristin Ertter 1995-7-11 14469 Contra Costa Pine Creek on west side of Mt. Diablo southwest of Walnut Creek; Diablo Foothills Regional Park Comment
  CAS-BOT-BC303201  Gnaphalium palustre J. (Germany) Bauer 1851-5-1 s.n. Contra Costa At Mt Diablo [Ad Mond Diabalo] Comment
  SEINET3150085  Godetia purpurea L. S. Rose 1938-5-8 38224 Contra Costa Antioch 15 Comment
  RSA739723  Grindelia camporum var. camporum John Dittes 2006-10-26 1416 Contra Costa San Joaquin Valley (foothills near NW edge) 2 air mile S of Marsh Creek Reservoir Gauging Station, 1.6 air mile SW of intersection of Camino Diablo and Vasco Road, Contra Costa Water District's Los Vaqueros Watershed Mitigation. 67 Comment
  SEINET266960  Grindelia camporum var. camporum Meredith A. Lane 1986-9-8 3104 Contra Costa At norther city limit of Pinole along San Pablo Blvd. 15 Comment
  SEINET10925203 Image available Grindelia camporum var. parviflora John Thomas Howell 1930-9-28 Howell 5496 Contra Costa Liberty School on Marsh Creek Road, Contra Costa Co. Comment
  CAS-BOT-BC305237  Grindelia hirsutula Lewis S. Rose 1954-9-27 54116 Contra Costa Byron 6 Comment
  CAS-BOT-BC305246  Grindelia hirsutula L. R. Abrams 1910-10-9 4357 Contra Costa Between San Ramon and Dublin Comment
  JEPS111758  Grindelia hirsutula D. G. Kelch 2005-5-13 05 .243 Contra Costa Martinez. South of oil refinery along Railroad tracks in fragment of habitat 28 Comment
  UC1618419  Grindelia hirsutula Barbara Ertter, Diane Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10716 Contra Costa west-most point opposite Pittsburg Marina (Browns Island n of Pittsburg near confluence of Sacramento and San Joaquin Rivers); Browns Island Comment
  UC520431  Grindelia hirsutula J. A. Moore and J. A. Steyermark 1931-8-7 3683 Contra Costa 6 mi w Tracy 50 Comment
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Apr 12 2009
  UCR197912  Grindelia robusta Beecher Crampton 1950-6-20 594 Contra Costa Richmond, south of Cutting Boulevard, immediately adjacent to Carlson Boulevard, north of Stege Ave. 15 Comment
  UC205988  Guillenia flavescens Katharine Brandegee Contra Costa Antioch Comment
  UC691138  Guillenia flavescens Mary L. Bowerman 1935-4-12 2823 Contra Costa 2 mi from North Road entrance (just n of the road); Mount Diablo Comment
  UC691153  Guillenia flavescens Mary L. Bowerman 1935-4-22 2879 Contra Costa 2 mi from North Gate (North Road, just w of chaparral); Mount Diablo 213 Comment
  RSA34731  Guillenia flavescens R. C. Rollins 1946-3-25 3046 Contra Costa Western slope of Mount Diablo. Comment
  UC10944  Guillenia lasiophylla W. H. Brewer 1862-4-24 987 Contra Costa Camp 68 Martinez Comment
  UC10945  Guillenia lasiophylla W. H. Brewer 1862-4-24 987 Contra Costa Martinez Comment
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Feb 5 2010
  UC10955  Guillenia lasiophylla Ivar Tidestrom 1893-4-15 Contra Costa Sheep Island Comment
  JEPS40433  Gutierrezia californica William Turner 1965-10-13 Contra Costa in the sand hills Antioch (along the San Joaquin River); San Joaquin River, Antioch Comment
  CAS-BOT-BC304580  Gutierrezia californica L. R. Abrams 1917-9-13 6728 Contra Costa Patterson Pass Comment
  UCD85227  Hainardia cylindrica Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  UC1795862  Hedera helix Barbara Ertter 1994-10-23 13915 Contra Costa Southwest El Cerrito, north edge Breuner's parking lot, northwest of Albany Hill. 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
  RSA721868D  Hedypnois cretica Barbara Ertter 1994-5-23 12809 Contra Costa Point Isabel at S end Richmond, Regional Shoreline and marsh at end of Rydin Road. Comment
  CAS-BOT-BC305331  Helianthella castanea H. M. Hall 1916-5-31 10137 Contra Costa Mt. Diablo, north slope of summit 1158 Comment
  JEPS86722  Helianthella castanea James A. Martin 1991-5-21 Contra Costa 800 ft se Castro Ranch (ca 1 mi n of nw end of San Pablo Dam) 182 Comment
  RSA72655  Helianthella castanea J. T. Howell 1940-4-21 15398 Contra Costa Pine Canyon, Mount Diablo Comment
  UC194923  Helianthella castanea H. M. Hall 1916-5-31 10137 a Contra Costa exposed flat on s side Mt. Diablo Comment
  RSA565068  Helianthella castanea D. W. Taylor 1992-5-2 13419 Contra Costa Above Selby Siding (ca 1 mile W of Carquinez Bridge), near BM 378. 107 Comment
  POM300646  Helianthemum scoparium var. scoparium Mary L. Bowerman 1932-4-9 1332 Contra Costa Ridge to Wall Point, from near Rock City Comment
  CDA8364  Helianthus californicus D. G. Kelch 2004-9-2 4 .332 Contra Costa Carquinez Strait; Marsh east of Martinez and I-680 and east of Lone Tree Marsh. Comment
  JEPS112356  Helianthus californicus D. G. Kelch 2004-9-2 04 .332 Contra Costa Pacheco Marsh Marsh east of Martinez and I-680 and east of lone tree Marsh. Large perennial along road 5 Comment
  UC697183  Helianthus californicus Mary L. Bowerman 1932-9-17 1581 Contra Costa west fork Donner Canyon (streambed); Mount Diablo Comment
  JEPS88686  Helianthus gracilentus Mary L. Bowerman 1932-10-1 1602 Contra Costa Mitchell Canyon Mount Diablo ((1931) burn near stream) Comment
  UC2070492  Heliotropium curassavicum Barbara Ertter 2002-11-11 18071 Contra Costa Round Valley Regional Preserve east of Mount Diablo, along Round Valley Creek/Miwok Trail. Comment
  CAS-BOT-BC305873  Helminthotheca echioides R. E. Frenkel 1964-6-20 593 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  UC197525  Hemizonia congesta subsp. lutescens H. M. Hall 1914-9-13 9875 Contra Costa n of San Pablo Comment
  CAS-BOT-BC306265  Hemizonia congesta subsp. lutescens R. E. Frenkel 1963-8-18 260 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  CAS-BOT-BC314853  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1910-10-9 4359 Contra Costa Between San Ramon and Dublin Comment
  UC197526  Hemizonia congesta subsp. luzulifolia H. M. Hall 1914-8-23 9859 Contra Costa San Pablo 15 Comment
  CAS-BOT-BC314876  Hemizonia congesta subsp. luzulifolia Joseph Andorfer Ewan; Nesta Ewan 1935-8-23 9338 Contra Costa Wildcat Creek Comment
  UC2029028  Hemizonia congesta subsp. luzulifolia Barbara Ertter 2002-5-11 17833 Contra Costa southwest base of Mount Diablo, lower Dan Cook Canyon, Summit Trail paralleling park boundary. 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
  RSA137090  Hemizonia fitchii J. T. Howell 1955-8-24 30904 Contra Costa Mt. Diablo near Turtle Rock. 259 Comment
  SEINET3387003 Image available Hemizonia heermannii Lewis S. Rose 1933-10-22 33387 Contra Costa Wildcat Canyon. Comment
  SEINET7883477 Image available Hemizonia heermannii Lewis S. Rose 1932-1 32667 Contra Costa WALNUT CREEK Comment
  POM30955  Hemizonia kelloggii Katherine Brandegee 1907-5-5 19 Contra Costa Near Antioch. Comment
  RSA81495  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1909-9-24 s.n. Contra Costa 1 mile N of San Ramon. Comment
  RSA81510  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1909-9-25 s.n. Contra Costa Walnut Creek. Comment
  RSA81518  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1909-9-24 s.n. Contra Costa San Ramon. Comment
  RSA81617  Hemizonia pungens subsp. maritima James I. McMurphy 1909-5-20 s.n. Contra Costa Antioch. Comment
  RSA424742  Hemizonia pungens subsp. pungens Aaron Liston 1987-4-27 670 -4 Contra Costa 3 miles S of Byron. Comment
  JEPS111598  Heracleum lanatum A. G. Murdock 2004-4-30 260 Contra Costa Vaca Canyon 165 Comment
  UC901875  Heracleum lanatum L. Constance 1950-6-25 3326 Contra Costa s. rim Wildcat Canyon (Tilden Park); , Tilden Park 365 Comment
  UC901876  Heracleum lanatum L. Constance 1950-6-25 3326 Contra Costa s. rim Wildcat Canyon (Tilden Park); , Tilden Park 365 Comment
  CAS-BOT-BC124027  Hesperevax caulescens M. K. Curran 1883-4-1 s.n. Contra Costa Antioch Comment
  CDA8374  Hesperocnide tenella D. G. Kelch, A. G. Murdock 2003-3-18 3 .334 Contra Costa Carquinez Strait; Canada de Cierbo. Comment
Read comments
Oct 13 2009
  CAS-BOT-BC167428  Hesperolinon breweri M. K. Curran 1884-1-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC167429  Hesperolinon breweri Robert F. Hoover 1939-5-20 4106 Contra Costa Head of Markley Canyon Comment
  RSA102173  Hesperolinon breweri M. K. C. 1885-06 s.n. Contra Costa Antioch Comment
  RSA151584  Hesperolinon breweri H. K. Sharsmith 1947-6-2 3947 Contra Costa Headwaters of marsh Creek, on shale (?), 0.6 miles from summit of Clayton-Tassajaro-Livermore road, Mount Diablo 305 Comment
  UC692703  Hesperolinon breweri Mary L. Bowerman 1931-5-21 888 Contra Costa Curry-Cave Point trail Mount Diablo (bank just above streambed) 350 Comment
  CAS-BOT-BC167436  Hesperolinon breweri Volney Rattan 1886-6-1 s.n. Contra Costa Mount Diablo. Near Marsh's Ranch Comment
  CAS-BOT-BC167444  Hesperolinon breweri Walter Knight; Irja Knight 1973-5-31 s.n. Contra Costa In the Nortonville coal mine area 341 Comment
  UC2028990  Hesperolinon breweri Barbara Ertter 2000-5-14 17000 Contra Costa Donner Canyon on north side of Mount Diablo, serpentinitic sites in general area of junction of Donner Canyon, Cardinet Oaks, and Meridian Ridge roads, edged by Arctostaphylos glauca et al. Comment
  JEPS122859  Hesperolinon californicum Adam C. Schneider with C. Matt Guilliams 2014-5-29 444 Contra Costa Alongside Blackhawk Ridge Trail, south of its divergence from Knobcone Pine Trail. Comment
  UC2028289  Hesperolinon californicum Barbara Ertter with Dan Norris 1998-6-18 16228 Contra Costa Black Hawk Ridge Road below Knobcone Point Road, south side of Mount Diablo. Comment
  UC692700  Hesperolinon californicum Mary L. Bowerman 1933-6-14 2275 Contra Costa Inner Black Hills e Knobcone Point; Mount Diablo Comment
  JEPS99502  Hesperolinon micranthum Mary L. Bowerman 1978-5-14 Contra Costa Mount Diablo. Old wagon trail to mine on E face of Eagle Peak Comment
  UC35090  Hesperomecon linearis W. C. Blasdale 1893-5-13 Contra Costa Antioch Comment
  UC579909  Hesperomecon linearis Annetta M. Carter 1933-4-23 298 Contra Costa San Joaquin River, between Antioch Bridge and Antioch Comment
  RSA144610  Hesperomecon linearis W. R. Ernst 1958-3-26 214 Contra Costa Sandhill bluffs facing the water between Antioch and Antioch bridge Comment
  JEPS45024  Heteromeles arbutifolia W. L. Jepson 1921-11-19 9516 Contra Costa Mt. Diablo Comment
  JEPS99982  Heteromeles arbutifolia G. Smick 2003-2-20 GAS 50 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1584840  Heterotheca grandiflora Jerry Powell 1990-3-9 1574 Contra Costa Antioch National Wildlife Refuge Comment
  UC581755  Heterotheca grandiflora Joseph P. Tracy 1932-9-10 10783 Contra Costa on Franklin Canyon Rd e Pinole; Rodeo Creek 91 Comment
  UC2028005  Heterotheca grandiflora Barbara Ertter with Amy Rusev 1998-1-17 15900 Contra Costa edge of Lime Ridge Open Space at NW foot of Mount Diablo, around former quarry [subsequently developed] on south side of Ygnacio Valley Road. Comment
  UC2027760  Heterotheca sessiliflora subsp. echioides Barbara Ertter 1996-11-24 15415 Contra Costa Southwest side of Mount Diablo, Wall Point Road across Pine Ridge ca 1/2 airmiles ENE of Macedo Ranch. Comment
  UC1034868  Hibiscus lasiocarpos Ira L. Wiggins 1954-9-5 13121 Contra Costa levee along Bethel Isl. Bethel Isl. Comment
  CDA15278  Hirschfeldia incana G. F. Hrusa, D. Crowe, R. York 1998-7-17 14715 Contra Costa Sacramento Delta; E end of Dow Chemical property at Pittsburg. Comment
  UC16313  Hoita orbicularis McLean March, 1875 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC325849  Holocarpha heermannii A. D. E. Elmer 1903-7-1 4613 Contra Costa Mt. Diablo Comment
  JEPS100138  Holocarpha heermannii A. Langston 2003-7-28 AL 80 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC473456  Holocarpha heermannii John Thomas Howell 1930-9-28 5499 Contra Costa 6.3 mi from Byron (on the Marsh Creek Rd.) Comment
  CAS-BOT-BC316050  Holocarpha heermannii Lewis S. Rose 1933-10-22 33387 Contra Costa Wildcat Canyon Comment
  CAS-BOT-BC320201  Holocarpha heermannii John Thomas Howell 1955-8-24 30901 Contra Costa Near Diablo Country Club Comment
  CAS-BOT-BC325827  Holocarpha heermannii Walter Knight 1977-7-20 s.n. Contra Costa Briones Ridge, Briones Regional Park 304 Comment
  CAS-BOT-BC325848  Holocarpha heermannii L. S. Rose 1941-10-13 41465 Contra Costa 1 mile east of Walnut Creek 50 Comment
  POM299470  Holocarpha heermannii L. S. Rose 1941-10-13 41465 Contra Costa 1 miles E of Walnut Creek. 50 Comment
  UCD133198  Holocarpha macradenia David J. Powers 1974-10-6 1001 Contra Costa east of Highway 80 and 100-300 yards south of Apian Way, Pinole. 30 Comment
  UCD133201  Holocarpha macradenia Walter Knight; Irja Knight 1978-8-8 3101 Contra Costa southeast corner of Interstate 80 and Appian Way, 1 mile north of El Sobrante. Comment
  CHSC99193  Holocarpha obconica John Dittes 2006-10-26 1415 Contra Costa San Joaquin Valley (foothills near nw edge); ~ 2.0 air-mile south of Marsh Creek Reservoir Gauging Station, 1.6 air-mile southwest of intersection of Camino Diablo and Vasco Road; Contra Costa Water District's Los Vaqueros Watershed Mitigation Project Area. 67 Comment
  JEPS25273  Holocarpha obconica G. Thomas Robbins 1959-9-6 4160 Contra Costa 0.6 mi e of junction with Marsh Creek Road; Vasco Road 70 Comment
  CAS-BOT-BC320244  Holocarpha obconica David D. Keck; J. Clausen 1933-10-27 2566 Contra Costa Vasco Road at junction with Byron Road Comment
  UC2029032  Holocarpha obconica Barbara Ertter 2002-11-11 18072 Contra Costa Round Valley Regional Preserve east of Mount Diablo, along Round Valley Creek/Miwok Trail Comment
  UC913078  Holocarpha obconica David D. Keck and J. Clausen 1933-10-27 2566 Contra Costa Vasco Road at junction with Byron Road 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
  RSA0001317  Holocarpha obconica subsp. autumnalis D. D. Keck, Jens Clausen 1933-10-27 2567 Contra Costa 1.6 miles W. of Byron, 1.4 mi. from junction with Vasco Road. Comment
  RSA22274  Holocarpha obconica subsp. obconica L. S. Rose 1938-10-28 38309 Contra Costa Marsh Creek, 8 miles W of Byron. 61 Comment
  CAS-BOT-BC320323  Holocarpha virgata L. S. Rose 1941-10-16 41467 Contra Costa 2 miles west of Byron 33 Comment
  CAS-BOT-BC320330  Holocarpha virgata H. M. Hall 1930-9-24 12888 Contra Costa Vasco Road, southeast of Mount Diablo Comment
  CAS-BOT-BC324615  Holocarpha virgata L. R. Abrams 1916-7-1 5725 Contra Costa Road between Walnut Creek Comment
  CHSC84517  Holocarpha virgata subsp. virgata John Dittes 2003-6-28 2003 -69 Contra Costa San Joaquin Valley; foothills, ca. 13.3 air-mile north by northeast of Livermore, ca. 3.4 air-miles south by southwest of Brentwood, ca. 1.3 air-miles southeast of Marsh Creek Reservoir Gauging Station. 73 Comment
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Dec 25 2008
  POM179764  Holocarpha virgata subsp. virgata J. T. Howell 1930-9-28 5500 Contra Costa 6.3 miles from Byron on the Marsh Creek Road. Comment
  RSA94065  Holocarpha virgata subsp. virgata J. T. Howell 1930-9-28 5501 Contra Costa 5.4 miles from Byron on Marsh Creek Road. Comment
  CAS-BOT-BC152593  Holodiscus discolor var. discolor Alice Eastwood 1915-6-21 4733 Contra Costa San Leandro Comment
  UC50661  Hordeum brachyantherum subsp. brachyantherum Jos. Burtt Davy 1899-4-19 7850 Contra Costa Las Trampas Ridge Comment
  UC756652  Hordeum brachyantherum subsp. brachyantherum G. L. Stebbins Jr. 1946-6-9 3654 Contra Costa 2 mi E of El Cerrito (near Mira Vista Country Club) Comment
  CDA9486  Hordeum depressum D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .211 Contra Costa Byron Airport. Comment
  RSA0033848  Hordeum depressum Barbara Ertter, Brad Olson 2000-6-2 17304 Contra Costa Brushy Peak Regional Preserve NE of Livermore, at south base of Brushy Peak. Comment
  SEINET11678332  Hordeum depressum I. L. Wiggins 1930-1 4569 Contra Costa 2 mi E of Mountain House on road to Byron Comment
  SD211511  Hordeum marinum subsp. gussoneanum Barbara Ertter, Jim Jokerst and Dave Magney 1989-4-5 8121 Contra Costa Southeast Contra Costa County: Alkalai sink West and adjacent to Clifton Court Forebay, circa15 airmiles Southwest of Stockton Comment
  UC1132529  Hordeum marinum subsp. gussoneanum C. M. Belshaw 1936-5-7 2049 Contra Costa 2 mi s Danville; Mt. Diablo Quad. Comment
  UC692426  Hordeum marinum subsp. gussoneanum Mary L. Bowerman 1931-5-13 846 Contra Costa Pine Canyon floor slightly more than a mi above the Sulphur Spring (Mount Diablo); , Pine Canyon Floor Comment
  UC50687  Hordeum murinum subsp. leporinum Jos. Burtt Davy 1900-3-24 6536 Contra Costa Point Richmond Comment
  UC692425  Hordeum murinum subsp. leporinum Mary L. Bowerman 1933-5-17 2097 Contra Costa branch of Curry Canyon due s Olafson's barn (Mount Diablo); , branch Curry Canyon Comment
  JEPS112088  Horkelia californica subsp. frondosa D. G. Kelch 2004-5-2 04 .164 Contra Costa Crockett - Edwards Canyon 125 Comment
  UC691150  Horkelia californica subsp. frondosa Mary L. Bowerman 1933-5-16 2996 Contra Costa just s the north boundary of section 25.; russelman Park 396 Comment
  UC2062663  Horkelia californica subsp. frondosa Barbara Ertter 1990-5-19 8993 Contra Costa Lafayette Ridge of Briones Regional Park N of Lafayette; head of drainage on N side of ridge. Comment
  CDA24877  Hornungia procumbens Jim Jokerst 1989-3-28 3057 Contra Costa Northwest of junction Byron Hot Springs Road and Armstrong Road, northeast of Livermore. 0 Comment
  UC692603  Hypericum formosum var. scouleri Mary L. Bowerman 1930-6-28 395 Contra Costa Mt. Diablo, Lower Silver Spring Comment
  UC55118  Hypochaeris glabra H. M. Hall 1901-4-5 1730 Contra Costa Mt. Diablo 527 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
  UC407368  Hypochaeris glabra Ira L. Wiggins 1930-4-18 4596 Contra Costa Comment
  UCD133458  Hypochaeris radicata Goodwin-Bellue 1932-5-6 s.n. Contra Costa exact location unknown. Comment
  CAS-BOT-BC324754  Iva axillaris J. W. Congdon 1893-7-30 s.n. Contra Costa Martinez Comment
  CAS-BOT-BC324757  Iva axillaris Walter Knight; Irja Knight 1977-8-21 3156 Contra Costa Martinez Regional Shoreline, Martinez, east of Ferry Street, 100 yards form S.P. tracks Comment
  UC691942  Juglans californica var. hindsii Mary L. Bowerman 1936-5-6 3412 Contra Costa Mitchell Canyon floor Mount Diablo (10 feet from stream) 259 Comment
  CAS-BOT-BC102304  Juglans hindsii Lewis S. Rose 1936-4-24 36140 Contra Costa Marsh Creek, 5 mi. E. of Clayton 60 Comment
  POM224483  Juglans hindsii L. S. Rose 1936-4-24 s.n. Contra Costa Marsh Creek, 5 miles E of Clayton. 61 Comment
  SJSU6440  Juglans hindsii C. O. Dudley 1966-5-8 109 Contra Costa Reliez Valley, Briones Hills, N of Lafayette 152 Comment
  UC1607650  Juncus balticus Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10704 Contra Costa opposite of Pittsburg Marina (center of w end of Browns Island, n of Pittsburg, near confluence of Sacramento and San Joaquin Rivers); Browns Island Comment
  UCD141335  Juncus balticus subsp. ater Ann F. Johnson 1978-5-26 AN- 29 Contra Costa San Jaoquin River, PG and E site, Antioch Dunes. Comment
  JEPS99492  Juncus bufonius var. bufonius Mary Bowerman 1995-6-4 Contra Costa Mount Diablo, North Gate Rd. Comment
  JEPS67091  Juncus bufonius var. occidentalis J. Burtt Davy 1895-4-7 948 Contra Costa Antioch Comment
  UC692075  Juncus mexicanus Mary L. Bowerman 1933-4-22 1884 Contra Costa nw end Shell Ridge (s of the highway (Heather Farm)); Mount Diablo Comment
  UC1619922  Juncus occidentalis Barbara Ertter, Brad Olson 1991-11-10 10887 Contra Costa behind yacht harbor (extreme w Richmond); Richmond, Point San Pablo Comment
  UC2028530  Juncus occidentalis Barbara Ertter 1998-1-17 15898 Contra Costa Lime Ridge Open Space at NW foot of Mount Diablo. Comment
  UC2028588  Juncus oxymeris Barbara Ertter 1996-9-19 15299 Contra Costa Antioch Marina, edge of Dow Marsh lands. Comment
  JEPS100048  Juncus patens A. Langston 2003-6-6 AL 38 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS112437  Juncus patens D. G. Kelch 2004-5-7 04 .200 Contra Costa Ca ada del Cierbo Ca ada del Cierbo 40 Comment
  JEPS112448  Juncus phaeocephalus var. paniculatus A. G. Murdock 2004-5-28 276 Contra Costa Refugio Valley 120 Comment
  JEPS67063  Juncus phaeocephalus var. paniculatus W. L. Jepson 1918-6-15 7675 Contra Costa Wild Cat Creek Comment
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Jul 28 2008
  JEPS112436  Juncus xiphioides D. G. Kelch 2004-5-7 04 .201 Contra Costa Ca ada del Cierbo 40 Comment
  JEPS48340  Juniperus californica W. L. Jepson 2642 Contra Costa head of Mitchell Creek Mt. Diablo (near saddle of divide); , head of Mitchell Creek 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
  CAS-BOT-BC235871  Keckiella corymbosa A. D. E. Elmer 1903-7-1 4956 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC235872  Keckiella corymbosa Paul F. Covel 1938-7-1 1472 Contra Costa Summit Mt. Diablo Comment
  UC691611  Keckiella corymbosa Mary L. Bowerman 1930-7-20 412 Contra Costa summit Mount Diablo Comment
  UC2045296 Image available Keckiella corymbosa Mary L. Bowerman 1930-6-7 276 Contra Costa Meridian Peak summit Comment
  UC691220  Koeleria macrantha Mary L. Bowerman 1934-6-9 2549 Contra Costa Fossil Ridge s of 1700 foot point Mount Diablo (Mount Diablo); , Fossil Ridge Comment
  UC692395  Koeleria macrantha Mary L. Bowerman 1933-5-3 1983 Contra Costa Alder Creek Canyon Mount Diablo; , Alder Creek Canyon 731 Comment
  UC692396  Koeleria macrantha Mary L. Bowerman 1935-5-22 3036 Contra Costa Eagle Point ridge, canyon at n end which heads into saddle w of Twin Peaks, little above the canyon bottom Mount Diablo; , Eagle Point ridge 304 Comment
  CAS-BOT-BC273615  Koeleria pyramidata Mary L. Bowerman 1935-5-22 3036 Contra Costa Mount Diablo. Eagle Point ridge, canyon at north end which heads into saddle west of Twin Peaks 304 Comment
  CAS-BOT-BC340425  Lactuca saligna John Thomas Howell 1932-10-16 10819 Contra Costa Near San Ramon 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
  JEPS75560  Lactuca virosa P. F. Yorks 1975-9-18 496 Contra Costa 1.9 km s Bear Creek Road (on Hampton Road in Hampton Road Natural Reserve, n of Briones Reservoir); Hampton Road Natural Reserve 200 Comment
  CAS-BOT-BC341476  Lagophylla ramosissima Mary L. Bowerman 1930-6-5 262 Contra Costa Mount Diablo. North road 5.8 miles from North Gate 457 Comment
  UC697157  Lagophylla ramosissima Mary L. Bowerman 1930-10-19 487 Contra Costa South road at Garden-of-the-Gods (roadside); Mount Diablo Comment
  JEPS112476  Lamium amplexicaule D. G. Kelch 2005-3-11 05 .34 Contra Costa Mt. Wanda - Martinez. Wanda. Fire road climbing North side of mountain 90 Comment
  UCD125108  Lamium amplexicaule Terri Williamson 1990-4-15 9 Contra Costa 212 Poshard St. Pleasant Hill. 12 Comment
  CAS-BOT-BC412727  Lastarriaea coriacea Dr. A. Kellogg; W. G. W. Harford 1868-1-1 865 Contra Costa Antioch Comment
  CDA22719  Lastarriaea coriacea Sue Bainbridge 2007-4-26 Byron-Airport- 5 Contra Costa Byron Airport. Comment
  JEPS105733  Lastarriaea coriacea David Gowen 2004-5-1 56 Contra Costa Lime Ridge Open Space. Ridge trail in the north section of the park and south of the water tank. Comment
  CAS-BOT-BC337980  Lasthenia californica James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  POM6192  Lasthenia californica C. F. Baker 1903-4-25 s.n. Contra Costa Antioch Comment
  UC2028998  Lasthenia californica Barbara Ertter 2000-3-30 16915 Contra Costa North side of Mount Diablo, grassy S-facing hillside between Deer Flat Creek and Bald Ridge, off-trail east of Meridian Ridge Road. Comment
  JEPS89764  Lasthenia ferrisiae Dean William Taylor 1971-3-28 987 Contra Costa along Highway 4 1 mi e of the junction with Byron Highway Byron Highway; along Highway 4 3 Comment
  CAS-BOT-BC353333  Lasthenia fremontii Robert F. Hoover 1937-5-14 2118 Contra Costa Byron Hot Springs. Comment
  UC1598597  Lasthenia glaberrima A. D. E. Elmer 1903-5-1 4321 Contra Costa Walnut Creek Comment
  CHSC106711  Lasthenia glabrata subsp. glabrata Barbara Ertter; Chris Thayer 1991-6-16 11705 Contra Costa ca. 1/2 mile north of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land east of Tilden Park, perennial grassland above oak stringer, just below right on NE-facing slope. 457 Comment
  UC90071  Lasthenia glabrata subsp. glabrata K. Brandegee 1889-5-1 Contra Costa Antioch Comment
  UC566713  Lasthenia gracilis H. L. Mason 1929-3-31 5147 Contra Costa Briones Valley Comment
  CAS-BOT-BC361123  Lasthenia microglossa Mary L. Bowerman 1932-3-27 1141 Contra Costa Mitchell Rock: Mount Diablo Comment
  JEPS99509  Lasthenia microglossa Mary Bowerman 1979-4-10 Contra Costa Mount Diablo, Mitchell Canyon opposite upper end of old reservoir. Comment
  UC89980  Lasthenia microglossa unknown 1890-4-22 Contra Costa near Antioch Comment
  UC2070483  Lasthenia microglossa Barbara Ertter 2003-3-28 18116 Contra Costa Round Valley Regional Preserve, ca 1 mile west of trailhead. Comment
  CAS-BOT-BC366302  Lasthenia minor Alice Eastwood 1921-4-18 10297 Contra Costa Antioch Comment
  UC191034  Lasthenia minor Katharine Brandegee 1904-5-5 Contra Costa near Antioch; Judsonville Comment
  JEPS10875  Lasthenia platycarpha Edw. L. Greene 1889-3-23 Contra Costa Byron Comment
  JEPS9902  Lasthenia platycarpha Greene 1889-3-23 Contra Costa Byron Comment
  CAS-BOT-BC213349  Lathyrus jepsonii subsp. californicus Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley Comment
  CDA27128  Lathyrus jepsonii subsp. californicus D. G. Kelch 2007-4-29 7 .204 Contra Costa Carquinez Strait; Richmond; Chevy s Hill N. Hilltop Dr. Comment
  UC2027834  Lathyrus jepsonii var. californicus Barbara Ertter 2001-5-10 17635 Contra Costa North flank of Mount Diablo, SE of Mitchell Canyon trailhead, on traversing road to Mitchell Rock Trail. Comment
  CAS-BOT-BC205013  Lathyrus jepsonii var. jepsonii Walter Knight; Brian Atwater; Joanne Dean; Rolf Bensler; Bryan Mortensen 1979-4-13 3362 Contra Costa Crooked Slough, Browns Island Comment
  JEPS112357  Lathyrus jepsonii var. jepsonii Dean G. Kelch and Andrew G. Murdock 2004-6-4 325 Contra Costa Pacheco Marsh; County: Contra Costa. Comment
  SEINET10487284  Lathyrus sulphureus John G. Lemmon 1878-4-28 Lemmon s.n. Contra Costa Comment
  JEPS99993  Lathyrus vestitus A. Langston 2003-6-19 AL 51 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1300852  Lathyrus vestitus var. vestitus Helen K. Sharsmith 1962-4-18 4945 Contra Costa above Carquinez Straits (Crockett-Martinez road); San Francisco Bay Region 60 Comment
  CDA15250  Lavatera cretica G. F. Hrusa, D. Crowe 1998-5-8 14381 Contra Costa Sacramento Delta; Adjacent to Dow Ecological Reserve on Dow Chemical property at Pittsburg. Comment
  UC1618178  Lavatera cretica Barbara Ertter 1991-5-12 9813 Contra Costa sw corner El Cerrito (Point Isabel Regional Shoreline, on San Francisco Bay); San Francisco Bay, Point Isabel Regional Shoreline Comment
  RSA666403  Lavatera cretica Barbara Ertter 1991-5-12 9813 Contra Costa Point Isabel Regional Shoreline in SW corner of El Cerrito, on San Francisco Bay. Comment
  CAS-BOT-BC323926  Layia chrysanthemoides Alice Eastwood 1914-3-14 3820 Contra Costa Byron Springs Comment
  RSA517747  Layia chrysanthemoides Donald G. Nelson 1937-3-30 475 Contra Costa Railroad tracks paralleling the highway south of Byron on road to Tracy Comment
  JEPS13505  Layia gaillardioides Robert F. Hoover 1936-4-16 973 Contra Costa e slope of Bald Peak e of Tilden Regional Park; San Pablo Ridge Comment
  UC589705  Layia gaillardioides Douglas Horn 1938-4-24 61 Contra Costa w of Orinda 274 Comment
  CAS-BOT-BC321080  Layia glandulosa C. F. Baker 1903-4-27 2939 Contra Costa Antioch Comment
  UC990574  Layia glandulosa James I. McMurphy 1910-4-9 Contra Costa Antioch Comment
  CAS-BOT-BC321085  Layia glandulosa Brandegee no date on sheet s.n. Contra Costa Antioch Comment
  CAS-BOT-BC327244  Layia hieracioides K. Curran 1883-5-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC370665  Layia platyglossa Alice Eastwood 1915-5-30 s.n. Contra Costa Mt. Diablo Comment
  UC1069769  Layia platyglossa C. M. Belshaw 1936-5-8 2064 Contra Costa se slope Mt. Diablo; Mt. Diablo Quad. Comment
  UC30670  Layia platyglossa Edw. L. Greene 1892-6-20 Contra Costa Mount Diablo Comment
  UC691492  Layia platyglossa Mary L. Bowerman 1933-5-2 1965 Contra Costa below and a little w Pioneer Camp; Mount Diablo Comment
  UC89338  Layia platyglossa Brandegee May 1883 Contra Costa e slope of Mt. Diablo Comment
  RSA721283  Layia platyglossa subsp. platyglossa Barbara Ertter, Brad Olson, Dianne Lake 1996-4-14 14589 Contra Costa North Peak of Mt. Diablo 1098 Comment
  UC2028427  Leersia oryzoides Barbara Ertter 1996-9-19 15297 Contra Costa Antioch Marina, edge of Dow Marsh lands Comment
  UC650364  Lemna minuscula Ira L. Wiggins 1930-4-18 4607 Contra Costa Jersey Island Comment
  RSA83333  Lepechinia calycina F. W. Peirson 1923-7-1 3832 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC89844  Lepidium Bauer 1857-5-1 s.n. Contra Costa Mond Diabola. Comment
  CAS-BOT-BC88707  Lepidium acutidens Annetta Mary Carter 1935-3-10 753 Contra Costa Kirker Pass road, south of junction with Nortonville road. 121 Comment
  JEPS111850  Lepidium appelianum A. G. Murdock 2003-6-2 86 Contra Costa Crockett - Eckley East of pier along tracks 2 Comment
  UCD144312  Lepidium chalepense G. F. Hrusa; D. Crowe 1998-5-8 14374 Contra Costa Sacramento-San Joaquin River Delta. On Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. 2 Comment
  CHSC67912  Lepidium dictyotum var. acutidens James D. Jokerst 1989-3-29 3074 Contra Costa Byron Hot Springs area NE of Livermore, adjacent to pipeline on terrace S of ephemeral creek. Comment
  UC518001  Lepidium dictyotum var. acutidens Lewis S. Rose 1933-3-29 33041 Contra Costa Nortonville Comment
  RSA0029768  Lepidium didymum Barbara Ertter 1990-5-15 8991 Contra Costa South El Cerrito, north foot of Albany Hill at end of Yosemite Avenue cul-de-sac. Comment
  JEPS111853  Lepidium latifolium A. G. Murdock 2004-5-28 301 Contra Costa Luzon 60 Comment
  UC1607701  Lepidium latifolium Barbara Ertter 1991-5-12 9810 Contra Costa sw corner El Cerrito (Point Isabel Regional Shoreline, n of park); San Francisco Bay, Point Isabel Regional Shoreline Comment
  CAS-BOT-BC89765  Lepidium latipes John Thomas Howell 1933-3-29 10907 Contra Costa Nortonville Hills. Comment
  UC691078  Lepidium latipes Mary L. Bowerman 1933-4-15 1846 Contra Costa canyon s Arroyo del Cerro; Mount Diablo Comment
  CHSC67205  Lepidium nitidum James D. Jokerst 1991-3-28 3227 Contra Costa Kellogg Reservoir Inundation Zone at 'Upper Greasewoods,' N of Livermore. Comment
  UC1157922  Lepidium nitidum Olive Dyer 1937-3-6 214 Contra Costa upper end Wildcat Canyon Comment
  UC691079  Lepidium nitidum Mary L. Bowerman 1931-2-8 506 Contra Costa West road (= North Rd) Mount Diablo Comment
  JEPS111855  Lepidium nitidum var. nitidum D. G. Kelch 2003-2-7 03 .37 Contra Costa Franklin Canyon 115 Comment
  UC10597  Lepidium strictum Harley P. Chandler 1901-4-5 942 Contra Costa Pine Canyon Mt. Diablo 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
  UC2027726  Leptosiphon bicolor Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15506 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  POM300970  Leptosiphon ciliatus Mary L. Bowerman 1935-5-22 3042 Contra Costa Eagle point ridge, canyon at north end which heads into saddle west of Twin Peaks. 305 Comment
  JEPS20577  Lessingia pectinata var. tenuipes R. F. Hoover 1940-11-23 4696 Contra Costa 2 mi w Byron Comment
  UC87926  Lessingia pectinata var. tenuipes T. S. Brandegee 1890-5-1 Contra Costa Brentwood Comment
  UC1050586  Leucospermum grandiflorum N. Floy Bracelin 1943-1-3 1933 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS99987  Leymus triticoides S. O'Neil 2003-7-27 SEO 44 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  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
  UCD87775  Leymus triticoides M. Wiesendanger 1926-6-1 1527 Contra Costa Richmond. Comment
  UC1818927  Lilaeopsis masonii Barbara Ertter, Lincoln Constance 1995-6-16 14261 Contra Costa East edge Dow Marsh on west side Antioch Marina, south side San Joaquin River in Delta area, mud on riprap. Comment
  UC17899  Limnanthes douglasii subsp. nivea W. H. Brewer 1862-4-30 1009 Contra Costa Camp 69 Walnut Creek Comment
  OBI12566  Limnanthes douglasii subsp. rosea Robert F. Hoover 1936-3-19 809 Contra Costa Byron Hot Springs Comment
  RSA756697  Limnanthes douglasii subsp. rosea Barbara Ertter, Jim Jokerst, Dave Magney 1989-4-5 8115 Contra Costa Alkali sink W and adjacent to Clifton Court Forebay, ca 15 air miles SW of Stockton 0 Comment
  CHSC106844  Limnanthes douglasii var. rosea Barbara Ertter; Jim Jokerst, Dave Magney 1989-4-5 8115 Contra Costa SE part of county. Ca 15 air miles SW of Stockton, alkali sink W and adjacent to Clifton Court Forebay. 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
  UC30176  Linanthus androsaceus W. H. Brewer 1862-5-22 1139 Contra Costa foothills e Mount Diablo Comment
  JEPS58248  Linanthus bicolor Mary L. Bowerman 1931-3-29 625 Contra Costa n side, 500 ft from top Cave Point; Mount Diablo Comment
  UC727781  Linanthus bicolor Milo S. Baker 1946-4-20 11332 Contra Costa s of Clayton (summit) Comment
  UC1819039  Linanthus bicolor Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14239 Contra Costa South side Mount Diablo, road to Sheepherders Springs 1/2 mile north of Curry Point from Sloan Road, clay at edge of grassland/woodland. 426 Comment
  UC1713208  Linanthus bolanderi Mary L. Bowerman 1935-4-26 2905 Contra Costa w of Indian Ceremonial Spring; Mount Diablo 1005 Comment
  UC1618093  Linanthus ciliatus Donald G. Nelson 1937-4-29 518 Contra Costa Road from Pinole south towards Alhambra Road Pinole Comment
  JEPS108216  Linanthus ciliatus David Gowen 2005-4-26 269 Contra Costa Mt. Diablo State Park. Near serpentine area just north of Cardinet Oaks Rd. Comment
  UC23464  Linanthus ciliatus Brewer 1862-5-22 1138 Contra Costa Comment
  UC125233  Linanthus pygmaeus subsp. continentalis T. S. Brandegee Apr 1889 Contra Costa Antioch Comment
  CDA34184  Linum bienne D. G. Kelch 2011-5-28 11 .537 Contra Costa Carquinez Strait Region.; W of Martinez. N of end of Hillside Pl. Comment
  UC198752  Linum lewisii Chesnut and Drew 1889-4-16 Contra Costa Martinez Comment
  SEINET6032167  Lithophragma affine H. E. Hodge 1956-4-7 23 Contra Costa 2 miles north of Orinda 61 Comment
  POM274347  Lithophragma affine subsp. affine Lyman Benson 1931-3-18 2663 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  POM203654  Lithophragma affine subsp. affine John T. Howell 1933-5-14 11280 Contra Costa Hills east of St. Mary s college Comment
  UC2028308  Lithophragma heterophyllum Barbara Ertter, Susan D'Alcamo 1998-6-12 16195 Contra Costa East end Bald Ridge Trail W of Prospectors Gap on north side of Mount Diablo summit. Comment
  JEPS111854  Lobularia maritima A. G. Murdock 2004-5-28 304 Contra Costa Luzon 60 Comment
  UC2031413  Lobularia maritima Barbara Ertter with David Gowen 2006-4-14 18666 Contra Costa Lime Ridge Open Space (City of Concord) at NW foot of Mt Diablo, grassland along Ohlone Trail SE of Ygnacio Valley Road Comment
  JEPS111698  Logfia gallica D. G. Kelch 2004-4-25 04 .121 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Hill Southwest of large cottonwood. West of Martinez at gated end of Scenic Dr 50 Comment
  UC1795896  Logfia gallica Barbara Ertter, Chris Thayer 1995-4-25 13992 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Devil's Slide area of Sycamore Canyon, roadside thru chaparral zone. 304 Comment
  UC691199  Lolium multiflorum Mary L. Bowerman 1935-5-1 2940 a Contra Costa West [= North Rd.] road 2.1 mi from entrance Mount Diablo (just below the road, Mount Diablo); , West road [= North Rd.] 182 Comment
  UC69727  Lolium multiflorum Mary L. Bowerman 1933-5-25 2199 Contra Costa Mount Diablo; Mount Diablo; Mount Diablo, Alamo Canyon; Alamo Canyon; Mount Diablo, above Wilson's barn Comment
  CHSC75233  Lolium perenne Roger Thom 1987-5-13 7 Contra Costa Contra Costa Campus of Hayward Calif. State University. 3100 Oak Park Blvd. Pleasant Hill. Field. 30 Comment
  UC691198  Lolium temulentum Mary L. Bowerman 1935-5-16 3006 Contra Costa e side of North Peak Mount Diablo (behind Gabriel-Hinks'); , (e side of North Peak) 289 Comment
  UC21195  Lomatium caruifolium var. caruifolium W. H. Brewer 1862-5-20 1128 Contra Costa hill n. of coal mines on n. side of Mt. Diablo Comment
  JEPS17127  Lomatium dasycarpum subsp. dasycarpum W. L. Jepson May 23-24 1891 14299 Contra Costa Mt. Diablo Comment
  UC691428  Lomatium macrocarpum Mary L. Bowerman 1933-4-26 1906 Contra Costa ridge e.-s.e of the peak North Peak; Mt. Diablo 579 Comment
  UC691429  Lomatium macrocarpum Mary L. Bowerman 1933-4-26 1906 Contra Costa e.-s.e. of the peak North Peak ridge (Mt. Diablo); Mt. Diablo 579 Comment
  UC1819056  Lomatium macrocarpum Barbara Ertter, Susan D'Alcamo 1994-4-24 12460 Contra Costa Mount Diablo east Walnut Creek, Deer Flat road between Juniper Campground and Deer Flat 762 Comment
  UC691423  Lomatium utriculatum Mary L. Bowerman 1933-5-4 1997 Contra Costa Fossil Ridge, E end Mount Diablo Comment
  UC2031434  Lonicera hispidula Barbara Ertter 1991-6-1 10070 Contra Costa Las Trampas Regional Wilderness in hills W of Danville Comment
  CDA28994  Lonicera hispidula var. vacillans D. G. Kelch, Suzanne Latham, Matt Beyers 2009-6-3 9 .33 Contra Costa East Bay.; El Sobrante Ridge at end of Silver Belt Dr. on Miocene chert outcrop. Comment
  CDA42192  Lonicera hispidula var. vacillans D. G. Kelch 2004-5-2 4 .167 Contra Costa Carquinez Strait Region; Edwards Canyon, Crockett. Comment
  POM181453  Lonicera involucrata Ira L. Higgins 1930-4-18 4594 Contra Costa Levee, east end of Jersey Island. Comment
  RSA666356  Lonicera japonica Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10694 Contra Costa Browns Island N of Pittsburg near confluence of Sacramento and San Joaquin rivers opposite Pittsburg Marina; west end of island. Comment
  UC1051199  Lonicera japonica N. Floy Bracelin 1944-6-11 2723 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1051193  Lonicera thibetica N. Floy Bracelin 1944-6-11 2727 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC200900  Lotus R. E. Frenkel 1964-2-5 356 Contra Costa On California Hwy. 21, Market Plaza Center, Alamo 79 Comment
  CDA15230  Lotus corniculatus G. F. Hrusa, D. Crowe 1998-5-8 14359 Contra Costa Sacramento Delta; Adjacent to Dow Chemical plant at Pittsburg. Comment
  JEPS91400  Lotus corniculatus Dean W. Taylor 1990-4-23 10636 Contra Costa ca. 2 miles due W of Byron Hot Springs 30 Comment
  JEPS55420  Lotus crassifolius var. crassifolius Milo S. Baker 1904-6-24 Contra Costa Summit of Mt. Diablo Comment
  UC692526  Lotus micranthus Mary L. Bowerman 1931-3-29 616 Contra Costa East Cave Point Ridge Mount Diablo Comment
  UC1129013  Lotus purshianus var. purshianus C. M. Belshaw 1936-5-13 2123 Contra Costa n of Horse Valley; Mt. Diablo Quad. 121 Comment
  UC692265  Lotus purshianus var. purshianus Mary L. Bowerman 1930-6-18 335 Contra Costa Rock City Canyon (= Dan Cook Canyon), at upper end Mount Diablo Comment
  JEPS75468  Lotus scoparius P. F. Yorks 1975-5-15 402 Contra Costa n of Briones Reservoir (ca 1.5 km s of Bear Creek Road on Hampton Road in Hampton Road Natural Reserve) Comment
  JEPS55877  Lotus strigosus Chesnut and Drew 1890-4-18 Contra Costa Antioch Comment
  JEPS108217  Lotus strigosus David Gowen 2005-4-27 270 Contra Costa Lime Ridge Open Space. In the southern section of the park on the east side of hill 724. Growing in sandy bare area along chaparral. Comment
  JEPS116857  Lotus strigosus David Gowen 2007-4-13 673 Contra Costa On dirt road junction (Ridge Trail) between Castle Rock Recreation Area and Borges Ranch. Comment
  CDA27342  Lotus wrangelianus D. G. Kelch, A. G. Murdock 2003-4-3 3 .356 Contra Costa Carquinez Strait Region; Cummings Skyway. South of Cummings Skyway and Crockett Boulevard. Comment
  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
  UC1051078  Luculia intermedia N. Floy Bracelin 1944-10-29 2821 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC478075  Ludwigia Walter Knight 1978-9-28 3277 Contra Costa Browns Island, Botany Cove Comment
  UC2029111  Ludwigia peploides subsp. montevidensis Barbara Ertter with Lincoln Constance 1995-6-16 14263 Contra Costa East edge Dow Marsh on west side Antioch Marina, south side San Joaquin River in Delta area, edge of marsh. Comment
  UC201036  Lupinus Katharine Brandegee 1918-6-5 Contra Costa Richmond Annex Comment
  UC15783  Lupinus albifrons unknown 1038 Contra Costa Walnut Creek Comment
  CAS-BOT-BC201368  Lupinus albifrons var. albifrons Alice Eastwood 1921-4-18 10282 Contra Costa Antioch Comment
  CAS-BOT-BC201369  Lupinus albifrons var. albifrons H. E. McMinn 1922-6-2 81 Contra Costa N. slope of Mt. Diablo Comment
  CAS-BOT-BC201377  Lupinus albifrons var. albifrons James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  UC864982  Lupinus albifrons var. albifrons Alice Eastwood 1915-5-30 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC201374  Lupinus albifrons var. albifrons Charles Piper Smith 1922-5-20 3530 Contra Costa Lafayette - trolly line 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
  UC2043258  Lupinus albifrons var. collinus Barbara Ertter with Dianne Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14674 Contra Costa Point Molate Navel Fuel Depot north of San Rafael bridge, edge of San Francisco Bay. Comment
  RSA600828  Lupinus albifrons var. collinus Joseph A. Ewan 1934-3-10 8645 Contra Costa San Pablo Ridge: Wildcat Canyon; 2 miles below Orinda road bridge.. . Comment
  UC1818990  Lupinus arboreus Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14670 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay, edge of coastal bluff on south side of Point Molate. Comment
  UC201981  Lupinus arboreus Miss Harriet A. Walker 1911-7-2 2511 Contra Costa near Santa Fe Track Antioch (Antioch); , near Santa Fe Track Comment
  UC1300886  Lupinus bicolor Helen K. Sharsmith 1963-4-7 5292 Contra Costa near Oakley (s of Antioch); , near Oakley 15 Comment
  UC33589  Lupinus bicolor J. P. Tracy 1900-3-24 624 Contra Costa Point Richmond San Francisco Bay, Point Richmond (Dry Hill) 15 Comment
  NY16041  Lupinus bicolor subsp. tridentatus A. A. Heller 1928-4-15 14507 Contra Costa Near Brentwood Comment
  CDA6113  Lupinus formosus D. G. Kelch 2007-5-12 7 .289 Contra Costa Carquinez Strait; Franklin Ridge, S of Hwy 4 at McEwen Rd. Comment
  UCD107762  Lupinus formosus P. B. Kennedy 1916-5-11 12 Contra Costa Grand View Terrace; Richmond District. Comment
  UC1795881  Lupinus formosus Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14674 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay; perennial grasslands on ridge. Comment
  UC1613951  Lupinus formosus var. formosus Charles M. Belshaw 1935-6-24 1033 Contra Costa Sobrante Hills Comment
  UC1618312  Lupinus latifolius var. latifolius Barbara Ertter with Laura Fujii 1990-7-21 9402 Contra Costa W of Pleasant Hill (Homestead Valley trail, at Bear Creek crossing; Briones Hills); Briones Regional Park 274 Comment
  UC15918  Lupinus luteolus F. P. Nutting 1893-6-29 Contra Costa Fish Ranch Comment
  UCR12299  Lupinus microcarpus Robin Maetche, Geoffrey Matthews 1971-7-4 s.n. Contra Costa 1 mi below North [Gate Road] entrance to Mt. Diablo State Park, Concord 427 Comment
  UC1607963  Lupinus microcarpus var. densiflorus Donald G. Nelson 1937-4-24 515 Contra Costa e of Mount Diablo (n of Byron along Marsh Creek Road); Marsh Creek Road 60 Comment
  UC201013  Lupinus microcarpus var. densiflorus Katharine Brandegee 1918-6-16 Contra Costa near Virgorit Powder Works; near Vigorit Powder Works Comment
  UCD108737  Lupinus microcarpus var. densiflorus P. B. Kennedy 1928-4-19 s.n. Contra Costa Byron Springs. Comment
  JEPS25140  Lupinus microcarpus var. microcarpus G. Thomas Robbins 1959-5-16 4010 Contra Costa just n Pt. Orient, Richmond (western base of Potrero Hills, overlooking San Francisco Bay); overlooking San Francisco Bay, Potrero Hills, n of Pt. Orien Comment
  SJSU10780  Lupinus microcarpus var. microcarpus D. C. Bettencourt 1959-4-18 Contra Costa Mt Diablo Foothills 304 Comment
  UC1562540  Lupinus microcarpus var. microcarpus Barbara Ertter with Elizabeth Neese 1988-4-24 7453 Contra Costa between and parallel to Nortonville and Somersville roads Black Diamond Mines Regional Preserve sw Antioch; Black Diamond Mines Regional Preserve Comment
  UC201010  Lupinus microcarpus var. microcarpus Katharine Brandegee June 1918 Contra Costa Richmond Annex; El Dorado St. Comment
  UC201018  Lupinus microcarpus var. microcarpus Katharine Brandegee 1918-6-16 Contra Costa near Vigorit Powder works (R.R. embankment) Comment
  UC201019  Lupinus microcarpus var. microcarpus Katharine Brandegee and Harriet E. Phillips 1918-6-16 Contra Costa near Vigorit Powder Works; near Vigorit Powder Works Comment
  SBBG45227  Lupinus microcarpus var. microcarpus Leota Davidson 1966-5-2 335 Contra Costa Hwy 24 near Claremont Hotel, Berkeley hills Comment
  RSA0027718  Lupinus nanus Barbara Ertter, R. K. Brummitt 1998-5-13 16132 Contra Costa Summit Road on Mount Diablo, base of rock outcrop/roadcut above Juniper Camp. 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
  CDA33853  Lupinus pachylobus D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .105 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  UC2028168  Lupinus pachylobus Barbara Ertter 1998-5-3 16075 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, near Wall Point. Comment
  SEINET8057995  Lupinus succulentus H. E. Hodge 1956-4-7 13 Contra Costa Tice Canyon Road in Walnut Creek 61 Comment
  UCD32374  Lupinus succulentus Beecher Crampton 1950-4-12 510 Contra Costa 1 mile south of Richmond, intersection of Cutting Blvd. and Carlson Blvd., singular path along S.P. railroad right of way. 22 Comment
  UCSB11258  Lupinus succulentus Hayes, Judy 1961-3-30 Contra Costa South Gate of Mount Diablo State Park 182 Comment
  UC2987  Luzula comosa W. H. Brewer 1862-5-23 1148 Contra Costa se Monte Diablo; se of Monte Diablo Comment
  CDA33071  Lycopus americanus D. G. Kelch 2010-10-5 10 .425 Contra Costa The Delta.; Antioch shoreline. West of Fulton shipyard. Comment
  UC692631  Lythrum californicum Mary L. Bowerman 1930-9-27 461 Contra Costa (2 mi by road from North Gate (at trough, take trail to west, follow to fence and go through), Mount Diablo); Mount Diablo Comment
  UCD102995  Lythrum californicum Herbert L. Mason 1955-7-14 14636 Contra Costa 1/2 mile E of Antioch Bridge. Comment
  CDA5134  Lythrum hyssopifolia D. G. Kelch, A. G. Murdock 2005-5-5 5 .213 Contra Costa Carquinez Strait Region; Point Pinole - Giant Marsh. Giant Salt Marsh. Comment
  UCR263783  Lythrum tribracteatum Barbara Ertter, Brad Olson 1991-9-28 10834 Contra Costa San Pablo Reservoir between Orinda and El Sobrante 91 Comment
  CAS-BOT-BC342680  Madia elegans Mary L. Bowerman 1933-5-17 2106 Contra Costa Mount Diablo. Curry Canyon branch south of Olafsons' barn 289 Comment
  UC2028300  Madia elegans Barbara Ertter, Susan D'Alcamo 1998-6-12 16191 Contra Costa North Peak Trail south of Prospectors Gap on east side of Mount Diablo summit. Comment
  UC691552  Madia elegans Mary L. Bowerman 1933-5-19 2144 Contra Costa Sulphur Springs Canyon, e fork Mount Diablo 457 Comment
  CAS-BOT-BC342985  Madia gracilis Mary L. Bowerman 1930-6-5 264 Contra Costa Mount Diablo. North Road 5.8 miles from North Gate 457 Comment
  JEPS100178  Madia gracilis G. Smick 2003-4-22 GAS 142 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111538  Madia gracilis D. G. Kelch 2005-5-6 05 .222 Contra Costa Franklin Canyon East of Christie Road. South of Route 4 127 Comment
  UC691767  Madia gracilis Mary L. Bowerman 1933-5-17 2104 Contra Costa branch of Curry Canyon due s Olafson's barn (w-facing bank just n of first fork of canyon); Mount Diablo 289 Comment
  CAS-BOT-BC324488  Madia radiata K. Brandegee 1908-4-9 50 Contra Costa Near Antioch Comment
  CAS-BOT-BC324489  Madia radiata unspecified No date on label. s.n. Contra Costa Antioch Comment
  SD8606  Madia radiata Brandegee Apr 1889 Contra Costa Antioch Comment
Read comments
Jan 9 2007
  SD8607  Madia radiata Brandegee Apr 1889 Contra Costa Antioch Comment
Read comments
Jan 9 2007
  UC89535  Madia radiata unknown April 1889 Contra Costa near Antioch Comment
  CAS-BOT-BC343583  Madia sativa David D. Keck 1941-6-5 5309 Contra Costa Berkeley Hills, Fish Creek Road, near east portal of Broadway Tunnel 335 Comment
  UC2027950  Malacothamnus fasciculatus Barbara Ertter with Joanne Kerbavaz and Mary Bowerman 2000-8-20 17516 Contra Costa South side Mount Diablo, Pioneer Horse Camp. Comment
  UC2028245  Malacothamnus fasciculatus Barbara Ertter, Tony Morosco 1998-9-18 16417 Contra Costa West edge Lime Ridge Open Space northwest of Mount Diablo. Comment
  CAS-BOT-BC206331  Malacothamnus fremontii John Thomas Howell; T. H. Kearney 1950-7-5 26635 Contra Costa Nortonville. Comment
  CAS-BOT-BC206332  Malacothamnus fremontii John Thomas Howell; T. H. Kearney 1950-7-5 26635 Contra Costa Hills above Nortonville. Comment
  UC109097  Malacothamnus fremontii T. S. Brandegee Apr 1889 Contra Costa antioch Comment
  UC185544  Malacothamnus fremontii Katharine Brandegee May 1883 Contra Costa Base of Mt. Diablo Comment
  UC521714  Malacothamnus fremontii Joseph Andorfer Ewan 1933-10-15 8029 Contra Costa Local at edge of chamise stand near Sout slope flat, Mt. Diablo 1066 Comment
  CAS-BOT-BC204090  Malacothamnus hallii Volney Rattan 1886-6-14 s.n. Contra Costa Mouth of Pine Canon [Canyon]. Foot of Mount Diablo Comment
  CAS-BOT-BC204095  Malacothamnus hallii John Thomas Howell; T. H. Kearney 1950-7-5 26634 Contra Costa On North Road, Mt. Diablo 259 Comment
  CAS-BOT-BC345271  Malacothrix californica Kellogg; Brannan 1870-4-22 s.n. Contra Costa Antioch Comment
  UC33270  Malacothrix californica J. Burtt Davy 1895-4-7 881 Contra Costa Antioch Comment
  CAS-BOT-BC345455  Malacothrix coulteri Kellogg; Bloomer 1869-5-1 s.n. Contra Costa Antioch 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
  JEPS111546  Malva nicaeensis D. G. Kelch 2005-3-13 05 .47 Contra Costa Crockett - weedy area under Zampa Bridge 4 Comment
  JEPS111547  Malva nicaeensis D. G. Kelch 2005-3-24 05 .65 Contra Costa Chevy's Hill Chevy's Hill. Edge of waste lot. 57 Comment
  UC2062657  Malva pseudolavatera Barbara Ertter 2003-6-22 18233 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, ca 1/2 air mile east of headquarters, drainage east of River View Loop Trail. Comment
  CHSC21640  Marah fabacea Willis Ball 1975-3-2 466 Contra Costa In area #4. On hill top ca. 50 yds e of large willow trees at ne end of lake. Contra Loma Regional Park. 53 Comment
  UC1948944  Marah fabacea William J. Ferlatte, L. Maynard Moe 1970-4-27 1230 Contra Costa San Francisco Bay: Red Rock Island Comment
  CHSC46934  Marah oregana Robert A. Schlising; Anna Eagle 1962-5-29 2282 Contra Costa Roadside. Comment
  UC691472  Marrubium vulgare Mary L. Bowerman 1935-9-13 3341 Contra Costa Alder Spring Mount Diablo; , Alder Spring Comment
  UC691667  Matricaria discoidea Mary L. Bowerman 1932-5-6 1414 Contra Costa Mitchell Canyon Mount Diablo 213 Comment
  UC89519  Matricaria discoidea T. S. Brandegee May 1890 Contra Costa Antioch Comment
  CAS-BOT-BC348050  Matricaria discoidea Katharine Brandegee No date on label s.n. Contra Costa Byron Spring Comment
  HSC6009  Matricaria discoidea D. A. Shally 1965-4-18 36 Contra Costa Canyon 1 mi. N of Canyon Store Comment
  UC1197429  Medicago polymorpha Joseph P. Tracy 1934-4-30 13190 Contra Costa between Lafayette and Moraga 152 Comment
  UCD86382  Melica bulbosa M. Wiesendanger 1926-6-1 1530 Contra Costa Mt. Diablo. Comment
  UC1055813  Melica californica Frank W. Gould 1941-4-20 1282 Contra Costa near Richmond Comment
  UC1132245  Melica californica C. M. Belshaw 1936-5-8 2051 Contra Costa 1.75 mi sse Mt. Diablo summit; Mt. Diablo Quad. 609 Comment
  UC692465  Melica californica Mary L. Bowerman 1935-5-1 2941 Contra Costa 4.4 mi from Mount Diablo West Road (North Rd) entrance (North Gate); Mount Diablo 396 Comment
  SEINET190972 Image available Melica imperfecta A. A. Beetle 1941-3-28 1723 Contra Costa Near Orinda Comment
  CAS-BOT-BC262506  Melica torreyana John Thomas Howell 1933-5-14 11257 Contra Costa Hills east of St. Mary's College Comment
  CDA32524  Melica torreyana D. G. Kelch, Andrew Murdock 2003-3-21 3 .055 Contra Costa Carquinez Strait Region; Martinez; West: Ozol Rock and Scenic Drive. Comment
  CDA15238  Melilotus indicus G. F. Hrusa, D. Crowe 1998-5-8 14369 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg. Comment
  UC1084410  Melilotus indicus G. Thomas Robbins 1937-4-17 123 Contra Costa slopes near Point Richmond Comment
  UC19628  Mentzelia lindleyi unknown 1125 Contra Costa Hills n Coal Mine; Mt. Diablo Comment
  JEPS99537  Mentzelia micrantha Mary L. Bowerman 1978-5-26 Contra Costa Mount Diablo, N of lower summit parking lot. Comment
  UCD16073  Microlepia strigosa Glen Holstein 1988-2-12 s. n. Contra Costa California. Contra Costa County: City of Danville. Comment
  CAS-BOT-BC348365  Micropus californicus var. californicus Alice Eastwood 1915-5-30 4470 Contra Costa Mt. Diablo Comment
  CDA8377  Micropus californicus var. californicus D. G. Kelch, A. G. Murdock 2004-4-3 4 .155 Contra Costa Carquinez Strait Region; Mt. Wanda - Martinez Comment
  JEPS40629  Micropus californicus var. californicus W. L. Jepson 1923-4-22 9877 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC348669  Microseris acuminata K. L. Chambers 1953-4-25 450 Contra Costa Balfour Rd., ca. 4 mi. w. of Brentwood and 1.8 mi. e. of its junction with Antioch-Briones Valley Road. (Deer Valley Road.) Comment
  RSA72855A  Microseris bigelovii A. Kellogg, W. G. W. Harford 1869-4-8 579 Contra Costa Antiock [Antioch] Comment
  UCD134536  Microseris douglasii P. B. Kennedy 1925-4-26 s.n. Contra Costa Mt. Diablo. Comment
  UC2027921  Microseris douglasii Barbara Ertter with Dan Norris 2001-4-8 17583 Contra Costa Lime Ridge Open Space east of Walnut Creek, high part of main ridge. Comment
  UC2028327  Microseris douglasii Barbara Ertter with Richard K. Brummitt 1998-5-13 16138 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, head of SE branch of Loughler Loop Trail. Comment
  JEPS111710  Microseris douglasii subsp. douglasii D. G. Kelch 2004-5-7 04 .189 Contra Costa Canada del Cierbo Canada del Cierbo 40 Comment
  UC691460  Microseris douglasii subsp. douglasii Mary L. Bowerman 1931-4-11 690 Contra Costa Pine Canyon Mount Diablo 121 Comment
  UC691463  Microseris douglasii subsp. douglasii Mary L. Bowerman 1931-4-11 698 Contra Costa toward mouth of Pine Canyon; Mount Diablo Comment
  CAS-BOT-BC348889  Microseris douglasii subsp. douglasii Ira L. Wiggins 1930-4-17 4560 Contra Costa 1 mi. E. of Mountain House, on road to Byron Comment
  CAS-BOT-BC348894  Microseris douglasii subsp. douglasii K. L. Chambers 1953-4-25 449 Contra Costa Balfour Road, ca. 4 mi. w. of Brentwood and 1.8 mi. e. of its junction with Antioch-Briones Valley Road. (Deer Valley Road.) On e. side of Mount Diablo Range Comment
  CAS-BOT-BC348897  Microseris douglasii subsp. douglasii R. E. Frenkel 1964-4-29 467 Contra Costa 0.25 mile E. of Tassajara Road on Highland Road 195 Comment
  RSA0027886  Microseris douglasii subsp. douglasii Barbara Ertter, Stu Garrett 1997-3-29 15527 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  UC691432  Microseris elegans Mary L. Bowerman 1933-3-25 1763 Contra Costa (Diablo Stock Farm) (Stone Valley) Canyon Mount Diablo Comment
  POM301001  Microseris heterocarpa Mary L. Bowerman 1935-4-19 2849 Contra Costa Mount Diablo: West road 3.5 miles from entrance Comment
  UC691442  Microseris sylvatica Mary L. Bowerman 1931-5-2 790 Contra Costa foot of Eagle Point ridge Mount Diablo Comment
  SBBG6024  Microsteris gracilis J. M. Tucker 1946-3-24 1385 Contra Costa hills between Nortonville and Somersville Comment
  UCD118913  Microsteris gracilis Laurence S. Jones 1934-4-8 s.n. Contra Costa West slopes of Mt. Diablo. 609 Comment
  UC26958  Mimulus arvensis Jos. Burtt Davy 1901-4-21 6929 Contra Costa Wildcat Canyon Comment
  JEPS78822  Mimulus aurantiacus var. aurantiacus Edward Lee 1936-5-24 2164 Contra Costa 10 mi from Marsh Creek Road; Morgan Territory Comment
  JEPS78823  Mimulus aurantiacus var. aurantiacus Edward Lee 1936-5-24 2165 Contra Costa 10 mi from Marsh Creek Road; Morgan Territory Comment
  RSA550837  Mimulus aurantiacus var. aurantiacus David M. Thompson 1992-6-3 1107 Contra Costa SW base of Mt. Diablo, E of Danville. 2.6 mi NE of Blackhawk and diablo rads along Mt. Diablo Scenic Boulvard and South Gate Road 378 Comment
  UC691569  Mimulus douglasii Mary L. Bowerman 1934-3-18 2483 Contra Costa w Russelman Park (on edge of Donner Canyon); Mount Diablo 365 Comment
  JEPS11549  Mimulus grandis W. L. Jepson 1922-5-15 9640 Contra Costa North Berkeley Hills 182 Comment
  UC691504  Mimulus grandis Mary L. Bowerman 1933-5-2 1964 Contra Costa below and w Pioneer Camp; Mount Diablo Comment
  UC2027721  Mimulus guttatus Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15513 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  SEINET3159684  Mimulus latidens L. S. Rose 1940-4-11 40184 Contra Costa 3 miles W of Byron. 30 Comment
  UC125132  Mimulus latidens Katharine Brandegee 1907-5-5 Contra Costa between Antioch and Marsh Creek Comment
  JEPS2966  Mimulus rattanii Mary L. Bowerman 1933-5-31 2222 Contra Costa Juniper Camp Mount Diablo Comment
  UC2070482  Minuartia douglasii Gregg Weber 2004-3-23 Contra Costa Briones Reservoir a little east of Hampton Road. Comment
  CAS-BOT-BC221680  Monardella douglasii Volney Rattan 1886-6-14 s.n. Contra Costa Mt. Diablo Comment
  UC76184  Monardella douglasii Milo S. Baker 1904-6-22 Contra Costa near Hurley's; Mt. Diablo Comment
  RSA0034457  Monardella villosa subsp. subserrata Katherine Brandegee 1907-7-4 s.n. Contra Costa Martinez. Comment
  CHSC67994  Monardella villosa subsp. villosa James D. Jokerst 1987-6-16 2915 Contra Costa Livermore Valley, 0.3 mi W of Vasco Rd. and +/- 200 m SW of a dirt track. Comment
  UC204205  Monardella villosa subsp. villosa A. D. E. Elmer Jul 1903 4658 Contra Costa Port Costa Comment
Read comments
Apr 5 2007
  JEPS99497  Monolopia gracilens Mary Bowerman 1979-5-2 Contra Costa Mount Diablo, Old Mines Trail, Back Canyon. Comment
  UC691682  Monolopia gracilens Mary L. Bowerman 1931-4-25 767 Contra Costa roadside a little below summit Meridian Peak; Mount Diablo Comment
  CAS-BOT-BC349614  Monolopia major Alice Eastwood 1914-3-14 3803 Contra Costa Byron Springs Comment
  CAS-BOT-BC349617  Monolopia major James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  CHSC23335  Monolopia major Willis Ball 1975-3-2 474 Contra Costa Contra Loma Regional Park. In area #2. On s side of hill ca. 50 yds ne of single restroom at sw end of lake. Approximately half way up the hill. 53 Comment
  UC629756  Monolopia major Ethel Crum 1936-4-6 1741 Contra Costa 2 mi w Byron 45 Comment
  UC90420  Monolopia major T. S. Brandegee May 1891 Contra Costa Antioch Comment
  UC692019  Montia fontana Mary L. Bowerman 1939-3-31 3736 Contra Costa Spring in bend of road to Barbecue Terrace ((off South Road), Mount Diablo); Mount Diablo Comment
  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
  SEINET5624176 Image available Myosotis sylvatica Betsey Northman 1961-1 36 Contra Costa Berkeley Hills, U.C. property; Dirt road leading N. toward Strawberry Canyon area 91 Comment
  CAS-BOT-BC83292  Myosurus minimus Herbert L. Mason 1952-4-26 14269 Contra Costa 3.5 miles south of Byron. Comment
  UCD96307  Myosurus minimus H. L. Mason 1952-4-14 14263 Contra Costa 3.5 miles south of Byron. Comment
  CAS-BOT-BC7111  Myosurus minimus subsp. apus M. K. Curran 1884-1-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC7110  Myosurus minimus var. sessiliflorus M. K. Curran 1884-1-1 s.n. Contra Costa Antioch Comment
  POM312426  Myosurus sessilis H. L. Mason 1952-4-14 14263 Contra Costa 3.5 miles S of Byron. Comment
  UC1950413  Najas guadalupensis Barbara Ertter with Brad Olson 1991-9-28 10838 Contra Costa San Pablo Reservoir between Orinda and El Sobrante, at S end of reservoir Comment
  CAS-BOT-BC259904  Nassella lepida Mary L. Bowerman 1935-5-22 3060 Contra Costa Mount Diablo. Saddle W of Twin Peaks (Eagle Point Ridge) 441 Comment
  JEPS99983  Nassella lepida S. O'Neil 2003-5-30 SEO 37 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691263  Nassella lepida Mary L. Bowerman 1935-6-28 3161 Contra Costa canyon w of meridian below place where pipe crosses (s base of peak); Mount Diablo, Meridian Peak 441 Comment
  CDA29507  Nassella pulchra D. G. Kelch, Troy MacGregor 2009-5-1 9 .278 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  UC691268  Nassella pulchra Mary L. Bowerman 1935-4-17 2830 Contra Costa West road (= North Rd) 2 mi from entrance (se exposure); Mount Diablo 237 Comment
  UC691269  Nassella pulchra Mary L. Bowerman 1933-5-8 2030 Contra Costa n Rock City (s-facing slope); Mount Diablo Comment
  UC692412  Nassella pulchra M. L. Bowerman 1935-4-26 2902 Contra Costa Indian Ceremonial Spring, W of Mount Diablo 1021 Comment
  UCD87434  Nassella pulchra A. A. Beetle 1941-3-29 1718 Contra Costa near Orinda. Comment
  UCD87635  Nassella pulchra P. B. Kennedy 1914-3-15 4610 Contra Costa Sunset Cemetery. Comment
  CAS-BOT-BC260130  Nassella pulchra Mary L. Bowerman 1933-5-8 2030 Contra Costa Mount Diablo. N of Rock City campground Comment
  UC23481  Navarretia cotulifolia William H. Brewer 1862-5-19 1110 Contra Costa n of Kirker Pass Comment
  UC335966  Navarretia cotulifolia J. G. Lemmon Contra Costa Mount Diablo Comment
  SEINET3163766  Navarretia mellita J. T. Howell 1938-6-30 13938 Contra Costa head of Siesta Valley Comment
  UC52780  Navarretia mellita J. Burtt Davy 1895-1 Contra Costa Moraga Pass Oakland Hills, Moraga Pass Comment
  UC691606  Navarretia mellita Mary L. Bowerman 1931-6-2 910 Contra Costa Gregory Ranch Road Mount Diablo Comment
  UC908171  Navarretia mellita Herbert L. Mason 1945-6-12 12588 Contra Costa se of Mount Diablo (near summit of road up Marsh Creek) Comment
  UC23802  Navarretia pubescens W. H. Brewer 1862-5-19 1113 Contra Costa n of Kirkers Pass Comment
  JEPS112008  Navarretia squarrosa D. G. Kelch 2004-7-9 04 .317 Contra Costa Ferndale Road Ferndale Road North of Alhambra Valley Road. Trail to west of road end. 240 Comment
  UC1607552  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
  UC124923  Navarretia viscidula Katharine Brandegee 1907-6-16 Contra Costa near Antioch; Judsonville 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
  PASA2110  Nemophila heterophylla Annetta Carter 1929-3-31 Contra Costa near Clayton Comment
  UC1106202  Nemophila heterophylla Peter H. Raven 1950-3-12 1426 Contra Costa Happy Valley Road .9 mi above junction with Upper Happy Valley Road; Happy Valley Road 243 Comment
  UC592125  Nemophila heterophylla H. L. Mason 1929-3-29 5125 Contra Costa Mount Diablo 762 Comment
  UC691705  Nemophila heterophylla Mary L. Bowerman 1933-4-9 1838 Contra Costa w fork , Donner Canyon, w fork (Donner Canyon; Mount Diablo) 243 Comment
  RSA421271  Nemophila heterophylla H. de Forest 1930-4-6 s.n. Contra Costa [No location information on label.] Comment
  RSA75806  Nemophila heterophylla Lincoln Constance, J. L. Morrison 1938-5-5 2190 Contra Costa Above Deer Flat near head of Mitchell Canyon, NW slope of Mt Diablo. 671 Comment
  UC2028076  Nemophila heterophylla Barbara Ertter, Tony Morosco 1998-4-12 15998 Contra Costa Base of Mount Olympia on north side of Mount Diablo, talus above quarry NE of Olympia Trail. Comment
  UC67128  Nemophila heterophylla Harley P. Chandler 1900-3-23 580 Contra Costa Briones Valley , Briones Valley (Region of San Francisco Bay) Comment
  UC691706  Nemophila heterophylla Mary L. Bowerman 1931-3-7 556 Contra Costa Sloan Road w of Sloan Ranch Mount Diablo (Mount Diablo); , w of Sloan Ranch Comment
  UC1069193  Nemophila menziesii R. C. Wilson 1935-3-13 124 Contra Costa 1 1/2 mi se Wall Pt.; Mt. Diablo Quad., se of Wall Pt. Comment
  UC592126  Nemophila pedunculata H. L. Mason 1932-3-20 6841 Contra Costa Antioch sand hills Comment
  UC691711  Nemophila pedunculata Mary L. Bowerman 1933-4-9 1831 Contra Costa Donner Canyon Mount Diablo, , w fork (w fork, Mount Diablo) 243 Comment
  UC767551  Nemophila pedunculata R. F. Hoover 1938-3-5 2816 Contra Costa mouth of Kirker Creek Canyon Comment
  UC2029051  Nemophila pedunculata Barbara Ertter 2000-3-30 16903 Contra Costa North base of Mount Diablo, lower Mitchell Canyon ca 1.5 miles from trailhead. Comment
  UC1619908  Nerium oleander Barbara Ertter, Brad Olson 1993-10-30 12287 Contra Costa w of junction San Pablo Avenue and Vista del Rio w of Crockett ((collapsed section of abandoned blacktop), Carquinez Strait Regional Shoreline); Carquinez Strait Regional Shoreline Comment
  HSC28472  Nicotiana glauca J. D. Ackerman, A. M. Montalvo 1973-12-20 123 Contra Costa 5 mi. E of Clayton Comment
  RSA610758  Oemleria cerasiformis Joseph A. Ewan 1935-3-2 9081 Contra Costa wildcat canyon. Comment
  UC1128080  Oemleria cerasiformis R. W. Lundh 1933-4-2 226 Contra Costa San Francisco Quad. Comment
  UC12469  Oemleria cerasiformis Davidson Jul 1892 Contra Costa Mt. Diablo Comment
  UCSB2828  Oemleria cerasiformis Robbins, G. 1940-3-10 Contra Costa North slope of Grizzly Peak, Berkeley Hills 426 Comment
  CDA38500  Oenanthe sarmentosa A. G. Murdock 2004-6-4 324 Contra Costa Carquinez Strait Region; Pecheco Marsh. Comment
  CAS-BOT-BC171593  Oenothera deltoides subsp. howellii James McMurphy 1909-5-23 s.n. Contra Costa Antioch Comment
  JEPS716  Oenothera deltoides subsp. howellii W. L. Jepson 1945-10-28 27570 Contra Costa Antioch Sand Hills 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
  UC914280  Oenothera deltoides subsp. howellii Verne Grant and Alva Grant 1947-4-13 7926 Contra Costa sand hills by river e Antioch Comment
  RSA119390  Oenothera deltoides subsp. howellii William M. Klein 1958-6-9 441 Contra Costa Sandhills N of Antoch, along the San Joaquin River Channel. 2 Comment
  RSA0004531  Oenothera deltoides var. howellii Alice Eastwood, J. T. Howell 1936-4-19 2147 Contra Costa Sand dunes at Antioch Comment
  JEPS21355  Orobanche vallicola Ray F. Smith 1956-9-23 Contra Costa n. base Mt. Diablo (Russellmann Park); , Russellmann Park Comment
  JEPS99528  Orobanche vallicola Mary L. Bowerman 1977-6-11 Contra Costa Mount Diablo, Pine Canyon, Castle Rock Park (rest unclear). Comment
  UC306775  Orobanche vallicola A. D. E. Elmer Jul 1903 4958 Contra Costa Mount Diablo Comment
  CAS-BOT-BC502954  Orobanche vallicola A. D. E. Elmer 1903-7-1 4958 Contra Costa Mount Diablo Comment
  SEINET10549673  Orthocarpus erianthus John T. Middleton 1936-4-24 Middleton 95 D Contra Costa Deer valley. Comment
  POM15363  Orthocarpus purpurascens H. P. Chandler 1901-3-22 849 Contra Costa Martinez. Comment
  POM15657  Orthocarpus purpurascens C. F. Baker 1903-4-27 2794 Contra Costa Byron. Comment
  PASA163  Orthocarpus pusillus Frank W. Peirson 1926-4-10 Contra Costa Road from Pablo to Pinole Comment
  RSA720798  Osmorhiza berteroi Mary L. Bowerman 1975-6-7 s.n. Contra Costa Mount Diablo, Big Spring Comment
  JEPS99556  Osmorhiza chilensis Mary L. Bowerman 1975-6-7 Contra Costa Mount Diablo, Big Spring Comment
  JEPS111578  Oxalis pes-caprae D. G. Kelch 2003-3-21 03 .53 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  UC1070121  Packera breweri C. M. Belshaw 1936-5-15 2129 Contra Costa Stewartsville Mt. Diablo Quad. 228 Comment
  UCD88473  Parapholis incurva Katharine Brandegee 1923-5-8 s.n. Contra Costa Byron Springs. Comment
  CDA2133  Paspalum dilatatum D. G. Kelch, A. G. Murdock 2003-8-13 3 .112 Contra Costa Carquinez Strait Region; Martinez Marsh. 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
  RSA0026146  Paspalum dilatatum Barbara Ertter 1998-6-20 16241 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Bob Pond at Old Borges Ranch. Comment
  RSA118092  Paspalum dilatatum J. T. Howell 1954-9-5 30025 Contra Costa Along road, Marsh Creek Springs Park Comment
  CDA37338  Paspalum distichum D. G. Kelch 2010-10-31 10 .443 Contra Costa Valley north of Alhambra Valley Rd., south of Pinole Peak, east of Hercules. Comment
  UC573135  Pectocarya penicillata H. L. Mason 1932-3-20 6845 Contra Costa Antioch sand hills Comment
  JEPS10410  Pedicularis densiflora W. L. Jepson 1899-4-19 21287 Contra Costa Las Trampas Ridge Comment
  CDA42757  Pellaea andromedifolia A. G. Murdock 2004-4-3 247 Contra Costa Franklin Canyon - McHarry Ranch Road, near fire road entrance. Comment
  UC692118  Pellaea andromedifolia Mary L. Bowerman 1930-8-24 428 Contra Costa lower trail Mitchell Canyon; Mt Diablo 259 Comment
  UC692119  Pellaea mucronata var. mucronata Mary L. Bowerman 1933-5-2 1956 Contra Costa below Pioneer Camp (just above upper edge of chaparral); Mt Diablo 762 Comment
  NY583786  Penstemon centranthifolius C. F. Baker 1903-4-25 2938 Contra Costa Antioch Comment
  POM224482  Penstemon centranthifolius L. S. Rose 1936-4-24 36158 Contra Costa 3 mi E of Antioch. 15 Comment
  UCD124286  Penstemon laetus Terri Williamson 1990-6-2 88 Contra Costa 212 Poshard Street, Pleasant Hill. (Original collected in Tehachapi Mountains, Hwy/. 58 Kern County). 274 Comment
  UC2042960  Pentachaeta alsinoides Barbara Ertter with David Gowen 2006-6-6 18676 Contra Costa Upper San Leandro Reservoir Watershed (EBMUD) south of Moraga. Comment
  UC691800  Pentachaeta alsinoides Mary L. Bowerman 1933-3-18 1753 Contra Costa Meridian Peak Mount Diablo (a little e of the meridian) Comment
  UC691803  Pentachaeta alsinoides Mary L. Bowerman 1935-5-1 2938 Contra Costa west road 2 mi from entrance (across the creek); Mount Diablo 182 Comment
  UC697211  Pentachaeta exilis Mary L. Bowerman 1932-3-23 1132 Contra Costa grassy flat e of and overlooking Donner Canyon; Mount Diablo 304 Comment
  UC1050369  Pentas lanceolata var. coccinea N. Floy Bracelin 1942-7-4 2179 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  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
  UC1390000  Perideridia oregana T. I. Chuang, L. Constance, R. S. Mitchell, and S. Banwar 1965-7-23 6009 Contra Costa just below Live Oak Picnic Area; Mount Diablo 487 Comment
  UC691809  Perideridia oregana Mary L. Bowerman 1936-8-8 3525 Contra Costa Emmons Canyon Mount Diablo (w fork) Comment
  CAS-BOT-BC413497  Persicaria amphibia Mary L. Bowerman 1935-9-13 3339 Contra Costa Mount Diablo. Hidden Pond Comment
  CAS-BOT-BC413780  Persicaria lapathifolia Walter Knight 1978-8-27 3166 Contra Costa Contra Loma Regional Park 30 Comment
  RSA428314  Phacelia Alice Eastwood 1931-5-30 18617 Contra Costa Oak Spring Comment
  UC198967  Phacelia breweri H. M. Hall and F. M. Essig 1916-5-31 10140 Contra Costa slopes s summit (type locality); Mount Diablo 1130 Comment
  UC24300  Phacelia breweri Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  UC880995  Phacelia breweri Alice Eastwood 1915-5-30 4487 Contra Costa near type locality Mt. Diablo Comment
  UCD120274  Phacelia breweri P. B. K. 1916-5-1 s.n. Contra Costa Mt. Diablo. Comment
  JEPS2225  Phacelia californica W. L. Jepson 1896-5-31 21044 Contra Costa Gum Grove Reservoir to Wild Cat Creek; Berkeley Hills Comment
  UC767564  Phacelia ciliata var. ciliata R. F. Hoover 1938-3-25 2897 Contra Costa Lone Tree Valley Comment
  JEPS111841  Phacelia distans D. G. Kelch 2003-4-3 04 .95 Contra Costa Ca ada del Cierbo Upper Ca ada de Cierbo on fire road to cow barn along Cummings Skyway. 70 Comment
  UC131485  Phacelia distans C. F. Baker 1903-4-28 2806 Contra Costa Antioch Comment
  UC672426  Phacelia distans Herbert L. Mason 1929-3-29 5122 Contra Costa Mount Diablo 762 Comment
  UC762423  Phacelia distans R. F. Hoover 1938-3-25 2893 Contra Costa Markley Canyon Comment
  UC672425  Phacelia distans Herbert L. Mason 1929-3-15 5053 Contra Costa canyon back of Nortonville Comment
  RSA276849  Phacelia douglasii James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  UC672384  Phacelia imbricata Herbert L. Mason 1928-4-26 4388 Contra Costa slopes to n of Lake Temescal; Berkeley Hills Comment
  JEPS2156  Phacelia imbricata subsp. imbricata Mary L. Bowerman 1935-5-22 3046 Contra Costa canyon at n end of ridge which heads into saddle w Twin Peaks; Mount Diablo, Eagle Point Ridge 350 Comment
  UC1228354  Phacelia imbricata subsp. imbricata L. R. Heckard 1956-7-17 805 Contra Costa Hampton Rd about 1 mi ne junction with Bear Creek road (n of Lafayette); Briones Hills 213 Comment
  UC2027758  Phacelia imbricata subsp. imbricata Barbara Ertter with Holly Forbes 1997-4-20 15559 Contra Costa North side of Mount Diablo, rocky outcrop north of Twin Peaks. Comment
  CAS-BOT-BC154330  Phacelia phacelioides Mrs. E. C. Sutcliffe 1920-5-30 s.n. Contra Costa Mt. Diablo Comment
  POM252665  Phacelia phacelioides H. L. Mason 1938-5-3 11749 Contra Costa Trail between Juniper Camp and Deer Flat, Mount Diablo. Comment
  UC691330  Phacelia phacelioides Mary L. Bowerman 1933-5-2 1950 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  JEPS99583  Phacelia rattanii Mary Bowerman 1994-6-19 Contra Costa Mount Diablo, Muir aarea, 10'W of restroom Comment
  JEPS1330  Phacelia suaveolens Mary L. Bowerman 1933-5-11 2078 Contra Costa w ridge Mount Diablo, Inner Black Hills Comment
  CHSC21625  Phacelia tanacetifolia Willis Ball 1975-3-26 513 Contra Costa Contra Loma Regional Park. In area #3. Beside trail immediately 25 yds sw of dam. 33 Comment
  UC2070461  Phacelia tanacetifolia Barbara Ertter with Steve Matson 2003-3-15 18105 Contra Costa Black Diamond Mines Regional Preserve, on SW side of Rose Hill. Comment
  UC1192354  Phalaris arundinacea Malcolm A. Nobs and S. Galen Smith 1949-7-8 945 Contra Costa 4 mi n Kingston (Otto's Black Bass Resort) Comment
  UC2070445  Phalaris arundinacea Barbara Ertter with Chris Thayer, Dianne Lake et al. 2001-5-26 17655 Contra Costa Stamm Unit of Antioch Dunes National Wildlife Refuge east of Antioch. Comment
  JEPS41048  Phalaris minor Rimo Bacigalupi and L. R. Heckard 1965-5-11 9073 Contra Costa strand at nw Brooks Island (sw of Richmond); San Francisco Bay, strand nw of Brooks Island Comment
  UC692384  Phalaris minor Mary L. Bowerman 1933-4-15 1849 Contra Costa canyon s Arroyo del Cerro, Mount Diablo (at edges of s-facing flat which slopes slightly adjacent to stream bed); Mount Diablo Comment
  UC768492  Phalaris minor R. F. Hoover 1937-5-14 2108 Contra Costa Franklin Creek Valley Comment
  SEINET10593167  Phalaris minor John Thomas Howell 1933-5-14 Howell 11234 Contra Costa St. Mary's College Comment
  CDA15270  Phalaris paradoxa G. F. Hrusa, D. Crowe 1998-5-8 14401 Contra Costa Sacramento Delta; Open sites near cyclone fence-line surrounding disturbed grasslands at E end of Dow Chemical property. Uncommon here. Comment
  UC1818923  Phalaris paradoxa Barbara Ertter, Mary Bowerman 1995-6-11 14251 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, at west base Mt. Diablo.; annual grassland near Indian Valley School entrance, clay soil (planted Clarkia also present). 91 Comment
  UCD89357  Phalaris paradoxa Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  UCD89405  Phalaris paradoxa P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UC2028398  Phalaris paradoxa Barbara Ertter with Dan Norris 1998-6-18 16212 Contra Costa South Gate Road on south flank of Mount Diablo, ca. 1 mile in from park boundary, gentle S-facing grassy slope Comment
  JEPS99989  Phlox gracilis G. Smick 2003-3-25 GAS 80 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SD211620  Pholistoma membranaceum Barbara Ertter 1992-3-8 10909 Contra Costa Northeast edge of Black Diamond Mines Regional Preserve, Northeast-heading canyon with steep loose sides circa 1/2 mile West of junctin of Stewartville Trail and Frederickson Lane Comment
  UC1535363  Pholistoma membranaceum J. M. Tucker 1981-4-25 4454 Contra Costa Antonio Souza Ranch sw of Byron (Mount Diablo Meridian, (extended section NW quarter Sec 31)); Antonio Souza Ranch, Mount Diablo Meridian 309 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
  UC692036  Phoradendron villosum Mary L. Bowerman 1930-6-22 358 Contra Costa on flat above Mitchell Canyon (Mount Diablo); Mount Diablo Comment
  POM212436  Phoradendron villosum Joseph A. Ewan 1933-10-15 8040 Contra Costa SW slope of Mt Diablo. 1067 Comment
  CAS-BOT-BC260887  Phragmites australis Walter Knight; Irja Knight 1978-8-14 3168 Contra Costa Browns Island Comment
  POM199098  Phragmites australis A. D. E. Elmer 1903-07 4541 Contra Costa Martinez Comment
  SEINET10659957  Phragmites communis Adolph D. E. Elmer Elmer 4541 Contra Costa Concord. Comment
  JEPS87944  Phyla nodiflora var. nodiflora Barbara Ertter, Brad Olson 1991-9-28 10828 Contra Costa at s end of San Pablo Reservoir between Orinda and El Sobrante; San Pablo Reservoir 91 Comment
  UC1949170  Phyla nodiflora var. nodiflora Barbara Ertter 1990-9-10 9634 Contra Costa Briones Regional Park, Briones hills S of Martinez, dried margin of Maricich Lagoon at junction of Alhambra Creek Trail and Old Briones Road Comment
  JEPS55997  Pickeringia montana L. R. Heckard and R. Bacigalupi 1968-6-27 Contra Costa n.e. Deer Flat (Bald Ridge, Mt. Diablo); Mt. Diablo, Bald Ridge 670 Comment
  UC1129855  Pickeringia montana var. montana R. W. Lundh 1932-8-20 135 Contra Costa 2 mi s Mt. Diablo (Rock City); Mount Diablo Quadrangle 502 Comment
  CDA39576  Picrasma quassioides E. Dean, Petra Unger 2005-7-19 2700 Contra Costa Contra Costa Water District land, Byron Tract, just south of Highway 4, along Old River, on east bank. 0 Comment
  UC1077124  Pilularia americana Herbert L. Mason 1932-3-20 6851 Contra Costa Deer Valley Comment
  UC691929  Pinus attenuata Mary L. Bowerman 1932-3-20 1121 a Contra Costa toward top of middle ridge (in ne fork of creek); Mount Diablo, Inner Black Hills, Sycamore Creek Comment
  JEPS46808  Pinus coulteri W. L. Jepson 1931-4-5 15726 Contra Costa Nortonville Comment
  UC1051353  Pinus coulteri N. Floy Bracelin 1941-12-29 1835 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  UC440233  Pinus coulteri Mrs. H. P. Bracelin 1931-3-22 179 Contra Costa Nortonville Comment
  UC1061681  Pinus radiata N. Floy Bracelin 1941-12-29 1833 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC72777  Pinus sabiniana L. R. Abrams 1921-5-25 8057 Contra Costa Near summit of Mt. Diablo Comment
  UC691920  Pinus sabiniana Mary L. Bowerman 1931-2-8 516 Contra Costa by roadside around bend from (below) Silver Spring Comment
  UC1789206  Pistacia atlantica Barbara Ertter with Dan Norris 2001-4-8 17603 Contra Costa Lime Ridge Open Space, main pit of west quarry area N of adjacent golf course 121 Comment
  UC2032806 Image available Pittosporum crassifolium Doran, Andrew Scott 2012-3-20 676 Contra Costa Brooks island loading dock, North side of island. Comment
  CDA1346  Plagiobothrys D. G. Kelch 1992-3-21 1823 -A Contra Costa 2.5 mi. SE of Byron; along RR tracks, N of junction of Holey Rd. and Byron Hwy. 0 Comment
  JEPS60914  Plagiobothrys acanthocarpus Edw. L. Greene 1889-3-24 Contra Costa near Byron Comment
  UC189202  Plagiobothrys acanthocarpus Edw. L. Greene 1889-3-23 Contra Costa Byron Comment
  UC691338  Plagiobothrys acanthocarpus Mary L. Bowerman 1933-3-25 1761 Contra Costa Diablo Stock Farm, Emmons Canyon, w fork Stone Valley Canyon Mount Diablo, Stone Valley Canyon, Emmons Canyon Comment
  SBBG28847  Plagiobothrys bracteatus J. T. Howell 1933-5-14 11232 Contra Costa St Mary's College Comment
  UC691333  Plagiobothrys bracteatus Mary L. Bowerman 1931-4-4 665 Contra Costa margins of dried-up pond w Turtle Rock; Mount Diablo Comment
  POM204086  Plagiobothrys canescens L. S. Rose 1933-3-29 33046 Contra Costa Pittsburg Comment
  SEINET12275845  Plagiobothrys canescens L. S. Rose 1933-1 33046 Contra Costa Pittsburg Comment
  UC2070493  Plagiobothrys canescens Barbara Ertter 2001-3-18 17567 Contra Costa Shell Ridge Open Space SW of Walnut Creek, dip in Ridge Top Trail where paralleling Costanoan Trail. Comment
  UC766406  Plagiobothrys infectivus R. F. Hoover 1941-4-12 4835 Contra Costa 1 mi n Lone Tree Valley Comment
  JEPS68066  Plagiobothrys nothofulvus W. L. Jepson 1887-4-12 21155 Contra Costa Moraga Moraga Valley Comment
  JEPS68111  Plagiobothrys nothofulvus Mrs. E. L. Mossman 1931-4-21 139 Contra Costa vicinity Grizzly Peak; Berkeley Hills 472 Comment
  UC1084518  Plagiobothrys nothofulvus Chas. T. Mason 1949-3-30 Contra Costa Byron Comment
  UC691404  Plagiobothrys nothofulvus Mary L. Bowerman 1931-4-4 630 Contra Costa 2 mi from Mount Diablo west road (= North Rd.) entrance; Mount Diablo 259 Comment
  HSC3502  Plagiobothrys stipitatus Greg Bos 1963-4-26 88 Contra Costa Pinole Valley Rd., SE of Pinole 76 Comment
  CHSC106840  Plagiobothrys stipitatus var. micranthus Barbara Ertter; Jim Jokerst, Dave Magney 1989-4-5 8126 Contra Costa SE part of county. Ca 15 air miles SW of Stockton, alkali sink W and adjacent to Clifton Court Forebay. Comment
  OBI20604  Plagiobothrys stipitatus var. micranthus Robert F. Hoover 1967-4-28 10510 Contra Costa Byron Hot Springs 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
  UC78124  Plagiobothrys stipitatus var. stipitatus Mrs. K. Brandegee Apr 1883 Contra Costa near Antioch Comment
  UC726183  Plagiobothrys stipitatus var. stipitatus A. A. Heller 1942-4-12 Contra Costa 5 mi sw Antioch crossing of Brentwood and Marsh Creek Roads Comment
  UC1178520  Plagiobothrys tenellus Ethel Crum 1936-4-5 1742 Contra Costa two mi w Byron; South Coast Ranges 45 Comment
  UC78090  Plagiobothrys tenellus Katharine Curran April 1885 Contra Costa Antioch Comment
  CDA40663  Plagiobothrys trachycarpus A. G. Murdock 2004-3-19 230 /231 Contra Costa Carquinez Strait; Hercules - Carbon. Comment
  JEPS116957  Plagiobothrys trachycarpus David Gowen 2008-4-6 842 Contra Costa East of Marsh Creek Road on Camino Diablo Road, on south side of road. Comment
  JEPS116856  Plagiobothrys undulatus David Gowen 2007-4-16 674 Contra Costa Briones Regional Park on foot trail northwest of Maricich Lagoon. Comment
  RSA523620  Plantago bigelovii subsp. bigelovii S. Galen Smith, R. C. Bacigalupi 1957-4-28 2851 Contra Costa 1 mile S of Byron. Comment
  JEPS22059  Plantago coronopus G. Thomas Robbins 1958-7-13 3899 Contra Costa n end Berrellesa Street, Martinez; Carquinez Strait Comment
  UC723789  Plantago elongata Joseph Andorfer Ewan 1935-3-10 9130 Contra Costa Donovan road, Kirker Pass Kirker Pass Comment
  CDA42160  Plantago elongata Jim Jokerst 1989-3-28 3063 Contra Costa Northwest of junction of Byron Hot Springs Road and Armstrong Road. Northeast of Livermore. 0 Comment
  CDA42163  Plantago erecta D. G. Kelch 2004-4-11 4 .062 Contra Costa Carquinez Strait Region; Crockett ; 5th Street Prarie. Comment
  JEPS14540  Plantago erecta G. Thomas Robbins with Peter H. Raven 1956-4-28 3664 Contra Costa just s El Cerrito city limits (along Arlington Ave at Kenilworth Dr); Berkeley Hills 213 Comment
  JEPS6441  Plantago erecta W. L. Jepson 1922-5-11 9637 Contra Costa North Berkeley Hills Comment
  UC691529  Plantago erecta Mary L. Bowerman 1931-3-21 599 Contra Costa e end Fossil Ridge (just above the creek); Mount Diablo Comment
  JEPS22091  Plantago maritima var. juncoides G. Thomas Robbins 1958-7-19 3903 Contra Costa about 0.75 mi s Pt. San Pablo, Potrero San Pablo, Richmond; San Francisco Bay, Pt. Orient Comment
  CDA32860  Plantago subnuda D. G. Kelch 2010-10-5 10 .423 Contra Costa The Delta.; Antioch shoreline. West of Fulton shipyard. Comment
  JEPS40290  Platanus racemosa W. L. Jepson 1899-10-7 14869 Contra Costa canyon e Bald Peak; Berkeley Hills Comment
  UC101595  Platystemon californicus Katharine Brandegee 1907-5-5 b Contra Costa between Antioch and Marsh Creek; between Antioch and Marsh Creek Comment
  UC692175  Platystemon californicus Mary L. Bowerman 1933-4-15 1868 Contra Costa canyon s Arroyo del Cerro, Mount Diablo (rocky knoll 250 ft below spring, Mount Diablo); Mount Diablo Comment
  UC101596  Platystemon californicus Katharine Brandegee 1907-5-5 a Contra Costa between Antioch and Marsh Creek (along a sandy road back of the oldest coal mine); between Antioch and Marsh Creek Comment
  UC1607967  Plectritis ciliosa Donald G. Nelson 1937-3-30 463 Contra Costa along Marsh Creek Rd. between Clayton and Byron Comment
  UC1818900  Plectritis ciliosa subsp. ciliosa Barbara Ertter, Mary Bowerman 1994-6-19 12854 a Contra Costa Mt. Diablo State Park east of Walnut Creek; scrub oak thicket north of road, north of lower summit parking lot, next to drainage on north facing slope. Comment
  UC691528  Plectritis ciliosa subsp. insignis Mary L. Bowerman 1931-3-8 558 Contra Costa above mouth of Mitchell Canyon (Mount Diablo); Mount Diablo 457 Comment
  JEPS14517  Plectritis macrocera L. T. Dempster 1956-5-26 1002 Contra Costa above Overhill Court (Orinda); Orinda Comment
  UC691523  Plectritis macrocera Mary L. Bowerman 1933-4-15 1866 Contra Costa Canyon s of Arroyo del Cerro (Mount Diablo); Mount Diablo 411 Comment
  UC400145  Pleuropogon californicus Ynes Mexia 1929-4-21 2388 Contra Costa junction of Franklin Canyon Comment
  CAS-BOT-BC260943  Pleuropogon californicus var. californicus W. H. Brewer 1862-5-1 1043 Contra Costa Walnut Creek Comment
  CAS-BOT-BC356095  Pluchea Vincent Jones 1920-8-28 s.n. Contra Costa Orwood Comment
  CAS-BOT-BC356115  Pluchea odorata Walter Knight; I. Knight; J. T. Howell; E. McClintock; S. Rae; B. Doyle 1978-9-5 3239 Contra Costa Browns Island. Botany Cove Comment
  SBBG44987  Poa annua A. Eastwood, J. T. Howell 1936-4-19 Contra Costa Antioch Comment
  UC2028529  Poa annua Barbara Ertter 1998-1-4 15890 Contra Costa South end Diablo Foothills Regional Park southeast of Walnut Creek, Hazzard Pond north of Livorna Staging Area Comment
  CAS-BOT-BC254883  Poa bulbosa John Thomas Howell 1983-5-12 54747 Contra Costa Juniper Camp, Mount Diablo 914 Comment
  UC691190  Poa howellii Mary L. Bowerman 1935-5-18 3020 Contra Costa nw facing slope across rd from and a little e of Parking area; Mt Diablo 1066 Comment
  CAS-BOT-BC255790  Poa infirma Alice Eastwood 1921-4-18 10265 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
  RSA484219  Poa secunda A. A. Beetle 1941-3-23 1713 Contra Costa 1 mile east of St. Mary's College 183 Comment
  CAS-BOT-BC236396  Poa secunda subsp. secunda J. W. Stacey 1934-3-21 34069 Contra Costa Marsh Creek, 6 miles E of Clayton Comment
  CHSC25045  Poa secunda subsp. secunda Willis Ball 1975-3-9 480 Contra Costa In area #8. On slope of a hill ca. 510 yds. w of Contra Loma Blvd. 124 Comment
  UC70975  Poa secunda subsp. secunda H. M. Hall 1901-3-17 1661 Contra Costa Pt Richmond Comment
  UCD91679  Poa secunda subsp. secunda P. B. Kennedy 1925-4-25 s.n. Contra Costa Road to Sycamore Canyon, Mt. Diablo. Comment
  SEINET5554719  Poaceae J. Hamai 1985-1 s.n. Contra Costa Russell Reserve. Comment
  CDA33833  Polycarpon tetraphyllum D. G. Kelch 2010-5-15 10 .126 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 Comment
  UC691130  Polygonum amphibium Mary L. Bowerman 1935-7-22 3185 Contra Costa Hidden Pond Mount Diablo (s side Meridian Peak, nw 1/4, section 12) 518 Comment
  UC692146  Polygonum amphibium Mary L. Bowerman 1935-9-13 3338 Contra Costa Hidden Pond Mount Diablo Comment
  UC692156  Polygonum amphibium Mary L. Bowerman 1935-9-13 3339 Contra Costa Hidden Pond Mount Diablo Comment
  UC1795694  Polygonum amphibium var. emersum Barbara Ertter, Kristin Ertter 1995-7-11 14482 Contra Costa West side of Mt Diablo SW of Walnut Creek; dense growth at lower end of Pine Pond, in sun. 182 Comment
  JEPS99992  Polygonum arenastrum G. Smick 2003-5-8 GAS 176 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CDA37404  Polygonum argyrocoleon D. G. Kelch, Mike Perlmutter 2011-9-23 11 .759 Contra Costa Entry to Discovery Bay. Comment
  UCD77933  Polygonum argyrocoleon Robert E. Preston 2002-6-26 1890 Contra Costa Ca. 0.75 mi S of Werner, W of Werner Dredger Cut, in field 0 Comment
  JEPS51308  Polygonum aviculare subsp. aviculare W. L. Jepson 1891-5-24 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC413970  Polygonum aviculare subsp. aviculare R. E. Frenkel 1964-4-8 421 Contra Costa By the south side of Marsh Creek Road near Marsh Creek 33 Comment
  CDA22736  Polygonum aviculare subsp. buxiforme D. G. Kelch 2006-7-14 06 .328-B Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  JEPS106988  Polypodium calirhiza J. Greenhouse with Kevin Hintsa 2004-4-5 5088 Contra Costa Mt. Diablo, Fire Interpretive Trail, Devil's Pulpit 1109 Comment
  UC1948930  Polypodium calirhiza William J. Ferlatte, L. Maynard Moe 1970-4-27 1235 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC691204  Polypogon interruptus Mary L. Bowerman 1933-6-3 2227 Contra Costa two mi by road from w entrance Mount Diablo (spring in chaparral) Comment
  CAS-BOT-BC232582  Polypogon monspeliensis A. A. Beetle 1941-6-24 1750 Contra Costa Point Richmond on San Francisco Bay Comment
  CDA2351  Polypogon monspeliensis A. A. Beetle 1941-6-24 1750 Contra Costa Point Richmond on San Francisco Bay 0 Comment
  UCD37370  Polypogon monspeliensis Beecher Crampton 1959-9-3 5453 Contra Costa Contra Costa County, 2 miles north of city of Orinda, Bear Creek, East Bay Municipal Utilities District Project. Comment
  CAS-BOT-BC232581  Polypogon monspeliensis Mary L. Bowerman 1932-8-27 1521 Contra Costa Mount Diablo. Spring S of Turtle Rock Comment
  SEINET10593596  Polypogon monspeliensis Alan A. Beetle 1941-6-24 Beetle 1750 Contra Costa Point Richmond on SanFrancisco Bay, common in wet sandy places Comment
  RSA0029363  Polypogon viridis Barbara Ertter, Mary L. Bowerman, Lisa Schultheis 1996-7-5 14917 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  CAS-BOT-BC267114  Potamogeton Walter Knight; L. R. Heckard; B. Johnson 1978-9-28 3273 Contra Costa Mouth of Crooked Slough, Browns Island Comment
  SBBG122780  Potamogeton diversifolius B. Ertter, B. Olson 1991-9-28 10839 Contra Costa S end of San Pablo Reservoir between Orinda and El Sobrante 91 Comment
  JEPS99587  Potamogeton pectinatus Mary Bowerman 1975-9-14 Contra Costa Mount Diablo, Hidden Pond. Comment
  UC72980  Potentilla anserina subsp. pacifica Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  JEPS46554  Proboscidea G. Thomas Robbins 1959-8-1 4114 Contra Costa roadside berm of frontage road just s Mt. Diablo Blvd. ((about 0.5 mi e of concrete bridge at Charles Hill and about 0.2 mi w of jct. of Hidden Valley Rd.), 2 mi w of Lafayette) 144 Comment
  JEPS23820  Proboscidea lutea G. Thomas Robbins 1959-8-1 4114 Contra Costa roadside berm of frontage road just s Mt. Diablo Blvd. ((about 0.5 mi e of concrete bridge at Charles Hill and about 0.2 mi w of jct. of Hidden Valley Rd.), 2 mi w of Lafayette) 144 Comment
  CAS-BOT-BC508635  Prosartes hookeri Mary L. Bowerman 1933-4-22 1888 Contra Costa Curry-Cave Point Trail 426 Comment
  UC691115  Prunus cerasifera Mary L. Bowerman 1931-4-18 726 Contra Costa Sycamore Canyon: flat at junction of E and NE forks. Mt. Diablo 396 Comment
  UC64518  Prunus subcordata H. M. Hall 1900-3-24 Contra Costa Briones Hills; San Francisco Bay region Comment
  CDA26219  Prunus virginiana subsp. demissa A. G. Murdock, D. G. Kelch 2004-5-28 268 Contra Costa Carquinez Strait Region; Pinole Peak. Comment
  CAS-BOT-BC151202  Prunus virginiana var. demissa Mary L. Bowerman 1933-5-21 2148 a Contra Costa Grape Spring (south from Curry Canyon), fifteen feet from surface of water - Mount Diablo Comment
  JEPS111729  Pseudognaphalium beneolens D. G. Kelch 2004-7-16 04 .318 Contra Costa Martinez - South Pine St. Entrance to Rte 4 heading west 70 Comment
  UC2027968  Pseudognaphalium beneolens Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15663 Contra Costa Point Richmond, crest of road. Comment
  UC691824  Pseudognaphalium californicum Mary L. Bowerman 1935-5-30 3089 Contra Costa Eagle Point ridge 320 Comment
  CAS-BOT-BC356654  Pseudognaphalium californicum Louise Dutton 1976-7-16 s.n. Contra Costa 18 Bobolink Road, Orinda 182 Comment
  SEINET9295311  Pseudognaphalium leucocephalum Unknown 1950-7-29 624 Contra Costa Waste ground along Santa Fe RR. 1 mi N of Richmond, gravelly soil Plant sent to USCH for identification. Query letter included on specimen. Comment
  JEPS111714  Pseudognaphalium luteoalbum D. G. Kelch 2004-6-6 04 .223 Contra Costa Martinez - Train Station Downtown Martinez. 2 Comment
  JEPS99520  Pseudognaphalium luteoalbum Mary L. Bowerman 1978-6-24 Contra Costa Mount Diablo, Mitchell Creek, below reservoir. 190 Comment
  JEPS99589  Pseudognaphalium luteoalbum Mary L. Bowerman 1975-9-14 Contra Costa Mount Diablo. Fire road to Frog Pond just W of Mt. Springs Creek bridge. 451 Comment
  CAS-BOT-BC357445  Pseudognaphalium ramosissimum Mary L. Bowerman 1938-11-19 3735 Contra Costa Mount Diablo. Mitchell Canyon 259 Comment
  CAS-BOT-BC357593  Pseudognaphalium stramineum Walter Knight; Joanne Dean 1978-8-14 3135 Contra Costa Browns Island Comment
  SEINET3875499  Pseudotsuga menziesii James K. Detling 1963-3-21 40 Contra Costa Near Glorietta School, Orinda.; 0 30 Comment
  UC1051469  Psilocarphus brevissimus var. brevissimus Herbert L. Mason 1952-4-14 14266 Contra Costa 3.5 mi s Byron Comment
  UC694154  Psilocarphus tenellus Herbert L. Mason 1932-5-4 7056 Contra Costa Laundry Farm Oakland Hills Comment
  CAS-BOT-BC361878  Psilocarphus tenellus John Thomas Howell 1930-4-22 4748 Contra Costa Bald Peak Comment
  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
  POM138972  Ptelea baldwinii subsp. crenulata A. D. E. Elmer 1903-05 4327 Contra Costa Mount Diablo. Comment
  POM127713  Ptelea baldwinii subsp. crenulata H. M. Hall 1916-5-31 10138 Contra Costa W side of Mt Diablo Comment
  RSA115538  Ptelea baldwinii subsp. crenulata Beecher Crampton 1957-7-9 4273 Contra Costa Slopes above Carquinez Straits. 2-3 miles NW of Martinez. Comment
  CAS-BOT-BC148640  Ptelea crenulata A. D. E. Elmer 1903-5-1 4327 Contra Costa Mt. Diablo Comment
  JEPS112112  Ptelea crenulata D. G. Kelch 2005-5-1 05 .202 Contra Costa Crockett - Edwards Canyon 100 Comment
  JEPS112113  Ptelea crenulata D. G. Kelch 2004-5-2 04 .172 Contra Costa Crockett - Edwards Canyon 112 Comment
  JEPS40167  Ptelea crenulata H. L. Mason 1928-3-31 Contra Costa Mt. Diablo Comment
  JEPS40169  Ptelea crenulata W. L. Jepson 1920-9-6 9082 Contra Costa Mt. Diablo Comment
  JEPS40175  Ptelea crenulata F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  UC17380  Ptelea crenulata W. H. Brewer 1862-5-7 1052 Contra Costa n slope Mount Diablo 30 Comment
  UC192227  Ptelea crenulata Edward Lee Greene 1886-5-25 Contra Costa Mt. Diablo Comment
  UC2029093  Ptelea crenulata Barbara Ertter with Travis Columbus 1990-6-10 9110 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill, on Spengler Trail NE of Briones Peak. Comment
  UC868043  Ptelea crenulata Lewis S. Rose 1940-4-30 40249 Contra Costa 6 mi e Clayton; Marsh Creek 45 Comment
  CAS-BOT-BC148631  Ptelea crenulata John Thomas Howell 1934-4-8 11811 Contra Costa 7 miles from Clayton on road to Livermore Comment
  CAS-BOT-BC148632  Ptelea crenulata John Thomas Howell 1929-9-21 4390 Contra Costa Marsh Creek Road 7 miles se. of Clayton Comment
  CAS-BOT-BC148645  Ptelea crenulata V. Rattan; Dr. Mary Curran 1883-6-1 s.n. Contra Costa Unspecified Comment
  UC2028220  Ptelea crenulata Barbara Ertter with Christopher Baysdorfer 1998-5-10 16126 Contra Costa West side Lime Ridge Open Space northwest of Mount Diablo. Comment
  UC2070583  Pteridium aquilinum var. pubescens Barbara Ertter with Joanne Kerbavaz, David Gowen, Mike Park and Victoria Seidman 2004-4-22 18365 Contra Costa Alder Creek crossing on Green Ranch Road, south side of Mount Diablo summit. Comment
  RSA0068501  Pterostegia drymarioides Katie Gallagher, Nick Jensen 2014-4-26 173 Contra Costa Las Trampas Regional Wilderness. 365 Comment
  UC1738832  Puccinellia simplex Dean W. Taylor 1990-4-10 10619 Contra Costa Byron Hot Springs Road, 1 mile S of Holey Road 24 Comment
  UC5818  Quercus H. P. Chandler 1900-3-24 Contra Costa Orinda Prak Mount Diablo Comment
  CAS-BOT-BC36505  Quercus Paul F. Covel 1939-4-30 s.n. Contra Costa Somersville Comment
  UC2028228  Quercus X eplingii Barbara Ertter 1998-12-6 16469 Contra Costa Rock City area on southwest side Mount Diablo. Comment
  CAS-BOT-BC104161  Quercus X morehus H. E. McMinn 82 Contra Costa N slope of Mt. Diablo near summit Comment
  UC2012970  Quercus X morehus Barbara Ertter with Tony Morosco 1996-7-27 15038 Contra Costa Mount Diablo State Park, Wasserman Trail on ridge below Cardinet Oaks Road. Comment
  UC691316  Quercus X morehus Mary L. Bowerman 1931-9-27 1048 Contra Costa ne side North Peak; Mount Diablo Comment
  CAS-BOT-BC104162  Quercus X morehus H. E. McMinn 367 Contra Costa 2 1/4 miles E of Edwood Peak on extension of the ridge Comment
  POM301006  Quercus X morehus Mary L. Bowerman 1935-10-26 3349 Contra Costa 0.1 mile by road above Silver Spring, 50 feet from road. 860 Comment
  CAS-BOT-BC45655  Quercus agrifolia John Thomas Howell 1950-7-5 26638 Contra Costa Nortonville Comment
  CAS-BOT-BC45663  Quercus agrifolia Mary L. Bowerman 1930-6-3 225 Contra Costa West road, 1.9 miles from west entrance, Mount Diablo Comment
  UC691315  Quercus agrifolia Mary L. Bowerman 1931-9-27 1049 Contra Costa ne side North Peak; Mount Diablo Comment
  UC1481546  Quercus berberidifolia Neil Havlik 1980-5-15 918 Contra Costa Standard Oil Refinery, in a draw above asphalt plant Richmond Comment
  UC691301  Quercus berberidifolia Mary L. Bowerman 1933-5-19 2142 Contra Costa Sulphur Spring Canyon, e fork Mount Diablo 457 Comment
  CAS-BOT-BC86642  Quercus douglasii Brandegee s.n. Contra Costa unspecified Comment
  JEPS37387  Quercus douglasii W. L. Jepson 1912-4-26 2644 Contra Costa Mt. Diablo Comment
  UCD57123  Quercus douglasii J. M. Tucker 1946-5-8 s.n. Contra Costa Mt. Diablo, along main road, above main gate. Comment
  UC691322  Quercus durata Mary L. Bowerman 1931-5-19 873 Contra Costa main e branch Donner Canyon; Mount Diablo 304 Comment
  CDA37340  Quercus garryana D. G. Kelch 2010-10-31 10 .445 Contra Costa South Pinole Peak. Comment
  UC1748010  Quercus garryana E. Dean, M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 655 Contra Costa Fossil Ridge, just upslope of South Gate Rd., just W of Gibralter Rock, SE of Rock City Mount Diablo State Park 487 Comment
  JEPS99999  Quercus kelloggii S. O'Neil 2003-3-11 SEO 11 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCSC008851  Quercus kelloggii Al Keuter 2014-5-23 AK 00 -094 Contra Costa Along Wildcat Canyon Road on the northeast side of the first range of hills behind Berkeley. 166 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
  UCD47071  Quercus palmeri J. M. Tucker 1981-4-25 4453 D Contra Costa California, Contra Costa County: Antonio Souza Ranch southwest of Byron (extended Section NW quarter Sec. 31, R3E, T1S, Mt. Diablo Meridian). 309 Comment
  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
  UCD47151  Quercus parvula var. shrevei H. D. Jones 1910-11-26 s.n. Contra Costa Mt. Diablo, Contra Costa County. Comment
  UC2070466  Quercus parvula var. shrevei Barbara Ertter 2000-9-2 17523 Contra Costa Sobrante Ridge Preserve in hills southeast of El Sobrante, Manzanita Trail near Heavenly Ridge Trail junction. Comment
  CAS-BOT-BC104713  Quercus wislizeni C. Keefer 1922-9-25 s.n. Contra Costa Moraga Ridge Comment
  UC1135854  Quercus wislizeni R. C. Wilson 1935-3-28 154 Contra Costa Top of Mt. Diablo Mt. Diablo Quad. 1158 Comment
  UC1543000  Quercus wislizeni Donald G. Nelson 1938-11-6 586 Contra Costa about 1 mi beyond Marsh Creek Springs (road cut in Marsh Creek Highway, ne of Mt. Diablo) Comment
  UC691292  Quercus wislizeni Mary L. Bowerman 1933-9-30 2448 Contra Costa e end Meridian Flat (e of Pioneer Camp); Mount Diablo Comment
  CAS-BOT-BC362444  Rafinesquia californica Alice Eastwood 1923-5-4 11720 Contra Costa Mt. Diablo Comment
  JEPS111763  Rafinesquia californica D. G. Kelch 2005-5-13 05 .260 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Area along Vista Road ~ 2.5 kiloms West of Martinez 45 Comment
  UC2028388  Ranunculus aquatilis var. diffusus Barbara Ertter with Tony Morosco 1998-7-11 16365 Contra Costa North base of Mount Diablo, small pond on north side of Bruce Lee Road east of Mitchell Canyon staging area Comment
  UC2028488  Ranunculus aquatilis var. diffusus Barbara Ertter 1998-5-3 16057 Contra Costa Turtle Rock ponds along Barbeque Terrace Road in upper Pine Canyon, southwest flank of Mount Diablo Comment
  RSA224309  Ranunculus aquatilis var. hispidulus Mary L. Bowerman, Walter Knight, I. Knight 1968-6-4 2331 Contra Costa floating on Frog Pond Mt. Diablo State Park Comment
  UC1196239  Ranunculus californicus J. P. Tracy 1903-4-18 1804 Contra Costa e slope of hills beyond Bald Peak; Region about San Francisco Bay, Berkeley Hills 304 Comment
  UC400155  Ranunculus californicus Ynes Mexia 1929-4-21 2377 Contra Costa Moraga Valley Comment
  UC480590  Ranunculus californicus Carl Meyer 1928-2-22 295 Contra Costa Mt. Diablo Comment
  POM268436  Ranunculus californicus Mary L. Bowerman 1932-3-23 1127 Contra Costa E of Donner Creek 244 Comment
  UCSB39437  Ranunculus californicus Fritzke, Sue 1980-3-1 Contra Costa Hills behind Walnut Heights Elementary School, off of Walnut Blvd 1 mile east of intersection with Walker Rd. 124 Comment
  RSA268401  Ranunculus canus Lyman Benson 1935-3-16 6275 Contra Costa Mitchell Canyon near Clayton; Mt. Range: Mt. Diablo; Watershed: Walnut Creek. 244 Comment
  POM149874  Ranunculus canus Jos. Burtt Davy 1898-05 s.n. Contra Costa San Ramon, Mt Diablo Comment
Read comments
Jan 23 2011
  POM268457A  Ranunculus canus Mary L. Bowerman 1931-3-21 587 Contra Costa Sycamore Canyon: semi shady grassy spot, alt 1100ft. Contra Costa County 335 Comment
  UC9455  Ranunculus canus var. canus J. Burtt Davy 1895-4-7 925 Contra Costa Antioch Comment
  UC9443  Ranunculus hebecarpus W. H. Brewer 1862-5-6 1049 Contra Costa near Camp 70; Monte Diablo Comment
  SEINET12765193  Ranunculus lobbii Barbara Ertter, David Gowen 2006-3-1 18665 Contra Costa Upper San Leandro Reservoir Watershed (EBMUD) south of Moraga, along SE end of Rocky Ridge Road as it drops to King Cyn Rd.; 0 180 Comment
  JEPS112057  Ranunculus muricatus D. G. Kelch 2004-4-24 04 .96 Contra Costa Ca ada del Cierbo Upper Ca ada de Cierbo on fire road to cow barn along Cummings Skyway 70 Comment
  UC692145  Ranunculus muricatus Mary L. Bowerman 1933-6-21 2342 Contra Costa edge of stream near Bilbaren Lodge (s of house, n of barn); Mount Diablo, Donner Canyon Comment
  POM269270  Ranunculus muricatus Mary L. Bowerman 1933-4-15 1844 Contra Costa Canyon south of Arroyo del Cerro, about 250 ft. below spring; Comment
  SEINET11268259  Ranunculus occidentalis Barbara Ertter, Dan Norris 2001-4-15 17607 Contra Costa Alamo Trail.; 0 213 Comment
  UC1084395  Ranunculus occidentalis G. Thomas Robbins 1937-4-25 140 Contra Costa hillside near La Vista Comment
  UC2028580  Ranunculus occidentalis Barbara Ertter with Dan Norris 2001-4-15 17607 Contra Costa Diablo Foothills Regional Park. At east end of Alamo Trail. 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
  CAS-BOT-BC74268  Raphanus sativus Walter Knight; W. Roderick; S. Edwards; B. Doyle 1978-9-19 3251 Contra Costa Browns Island. South Landing. Comment
  UC2062667  Rhamnus alaternus Barbara Ertter with David Gowen 2006-4-14 18667 Contra Costa Lime Ridge Open Space (City of Concord) at NW foot of Mount Diablo, SE side of Ygnacio Valley Road. Comment
  UC692600  Rhamnus californica Mary L. Bowerman 1935-6-21 3147 Contra Costa Arroyo del Cerro, e fork Mount Diablo 274 Comment
  SEINET12210141  Rhamnus californica M. T. Doutt 1930-1 96 Contra Costa Marsh Creek Comment
  JEPS41992  Rhamnus californica subsp. californica W. L. Jepson 1895-9-7 13977 Contra Costa Grizzly Peak Berkeley Hills Comment
  UC692581  Rhamnus crocea Mary L. Bowerman 1930-6-22 360 Contra Costa Mitchell Canyon Mount Diablo Comment
  CAS-BOT-BC59894  Rhamnus ilicifolia A. D. E. Elmer 1903-5-1 4326 Contra Costa Mount Diablo. Comment
  UC73348  Rhamnus ilicifolia Milo S. Baker 1904-6-24 Contra Costa near summit of Mt. Diablo; Mt. Diablo 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-BC200695  Rhus aromatica Peter H. Raven; H. L. Mason; R. Ornduff; et al. 1957-4-11 10625 Contra Costa Curry Canyon, 4.0 mi. s. of Recreation Ground 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
  SBBG28501  Ribes californicum E. Mulliken 1905-1-28 Contra Costa Wildcat Cyn, Berkeley Hills Comment
  HSC45325  Ribes malvaceum J. P. Smith, J. O. Sawyer, Thomas W. Nelson 1978-2-18 9520 Contra Costa Mt. Diablo State Park, Juniper Campground along Gate Rd. Comment
  JEPS49338  Ribes malvaceum W. L. Jepson 1921-11-19 9514 Contra Costa halfway up to summit Mt. Diablo Comment
  UC570820  Ribes malvaceum Herbert L. Mason 1926-3-7 2708 Contra Costa Summit Mt. Diablo Comment
  UC692225  Ribes malvaceum Mary L. Bowerman 1931-2-8 509 Contra Costa near summit Meridian Peak; Mount Diablo Comment
  UC692226  Ribes malvaceum Mary L. Bowerman 1930-10-19 486 Contra Costa West road = North Rd. Mount Diablo Comment
  RSA0021639  Ribes malvaceum Lyman Benson 1935-3-16 6269 Contra Costa Mt. Diablo. Walnut Creek watershed. [Label indicates Alameda Co., but Mt. Diablo is in Contra Costa Co.] 915 Comment
  CAS-BOT-BC209363  Ribes sanguineum var. glutinosum H. E. McMinn 1925-1-1 22 Contra Costa Head of San Leandro Creek Comment
  JEPS77002 Image available Ribes sanguineum var. glutinosum Robert M. Lloyd 1963-3-17 2132 Contra Costa 0.5 mi e Grizzly Peak Road (on Skyline Drive (across from 7090 Skyline Drive), Huckleberry trail); Huckleberry trail Comment
  UC570964  Ribes sanguineum var. glutinosum Herbert L. Mason 1925-9-12 2224 Contra Costa head San Leandro Canyon; Oakland Hills Comment
  JEPS111953  Ricinus communis D. G. Kelch 2004-7-9 04 .316 Contra Costa Rodeo Shore 2 Comment
  JEPS111954  Ricinus communis D. G. Kelch 2004-7-9 04 .316 Contra Costa Rodeo Shore 2 Comment
  UC1598928  Rigiopappus leptocladus Mrs. K. Curran May 1883 Contra Costa Antioch Comment
  JEPS99482  Rigiopappus leptocladus Mary Bowerman 1977-5-29 Contra Costa Mount Diablo. SW corner Russellman Park. 365 Comment
  RSA72859  Rigiopappus leptocladus A. Kellogg, W. G. W. Harford 1869-6-6 524 Contra Costa Summerville, Mt. Diablo. Comment
  UC1050660  Rondeletia gratissima N. Floy Bracelin 1943-5-23 1178 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California 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-BC147408  Rosa californica L. R. Abrams 1916-6-30 5710 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC147409  Rosa californica Walter Knight; Joanne Dean 1978-8-14 3180 Contra Costa Browns Island Comment
  UC136538  Rosa californica Katharine Brandegee 1907-7-4 Contra Costa marsh between Martinez and Port Costa Comment
  UC691162  Rosa californica Mary L. Bowerman 1930-6-26 375 Contra Costa junction of Riggs Canyon Rd and Livermore Road; Mount Diablo Comment
  UC691148  Rosa gymnocarpa Mary L. Bowerman 1931-5-21 887 Contra Costa Curry-Cave Point trail Mount Diablo (where streambed forks and on w fork) 441 Comment
  JEPS99966  Rumex acetosella G. Smick 2003-5-6 GAS 175 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1584691  Rumex acetosella Jerry Powell 1987-7-14 1508 Contra Costa Point Molate Beach Comment
  UC692155  Rumex acetosella Mary L. Bowerman 1935-5-18 3016 Contra Costa road above Indian Ceremonial Springs (roadbank at hairpin turn); Mount Diablo Comment
  CAS-BOT-BC421866  Rumex acetosella Mary L. Bowerman 1935-5-18 3016 Contra Costa Mount Diablo. Road above Indian Ceremonial Spring: Roadbank at hairpin turn. Comment
  POM300578  Rumex acetosella Mary L. Bowerman 1935-5-18 3016 Contra Costa Road above Indian Ceremonial Spring, roadbank at hairpin turn Comment
  UC1618384  Rumex conglomeratus Barbara Ertter, Diane Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10698 Contra Costa opposite of Pittsburg Marina (in center of w end of Browns Island n of Pittsburg near confluence of Sacramento and San Joaquin Rivers); Browns Island Comment
  CDA22902  Rumex crispus D. G. Kelch 2006-7-14 6 .33 Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  UC407042  Rumex crispus Ira L. Wiggins 1930-4-18 4605 Contra Costa Jersey Island Comment
  CAS-BOT-BC421625  Rumex crispus Ira L. Wiggins 1930-4-18 4605 Contra Costa Jersey Island Comment
  CDA15273  Rumex salicifolius var. crassus G. F. Hrusa, D. Crowe, R. York 1998-7-17 14710 Contra Costa Sacramento Delta; E end of Dow Chemical property. Comment
  UC1197438  Rupertia physodes Joseph P. Tracy 1934-4-30 13195 Contra Costa near Lafayette 152 Comment
  UC1594172  Rupertia physodes Jerry Powell 1991-6-21 1608 Contra Costa along creek well away from water Briones Regional Park Comment
  UC16326  Rupertia physodes unknown 1032 Contra Costa Mount Diablo Comment
  JEPS22880  Rupertia physodes Helen J. McGinnis 1959-4-26 53 Contra Costa 1 1/2 mi from Tilden Park Nature Area (Wildcat Canyon); Wildcat Canyon 198 Comment
  OBI12751  Rupertia physodes G. Thomas Robbins 1958-7-6 3890 Contra Costa Along Pinehurst Rd, on slopes above Upper San Leandro Reservoir, about 1/4 mi N of Alameda Co line 229 Comment
  CDA1428  Ruppia maritima D. G. Kelch, Andrew G. Murdock 2004-4-26 4 .138 Contra Costa Carquinez Strait Region; Pt. Pinole in tidal pond. Comment
  UC2028160  Sagina apetala Barbara Ertter 1998-4-4 15948 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, SE of Indian Valley School. Comment
  UC2029092  Salicornia depressa Barbara Ertter 1990-9-30 9656 Contra Costa Point Pinole Regional Shoreline on SW corner of park; edge of San Pablo Bay. Comment
  POM164904  Salicornia virginica Katherine Brandegee s.n. Contra Costa Byron Hot Springs. Comment
  CAS-BOT-BC103028  Salix bonplandiana Walter Knight; R. Bensler; B. Atwataer; J. Dean; B. Mortensen 1979-4-13 3367 Contra Costa Near South Landing. Browns Island Comment
  CAS-BOT-BC129914  Salix bonplandiana Mary L. Bowerman 1933-11-9 2468 Contra Costa Meridian Peak; spring on ridge west of Old Government Trail, fifty feet from head of spring - Mount Diablo 533 Comment
  CAS-BOT-BC129917  Salix bonplandiana Mary L. Bowerman 1931-3-1 529 Contra Costa Mount Diablo - near North Entrance Comment
  UC407392  Salix exigua var. hindsiana Ira L. Wiggins 1930-4-18 4587 Contra Costa levee banks Jersey Isl. Comment
  CDA15248  Salix laevigata G. F. Hrusa, D. Crowe 1998-5-8 14379 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  JEPS38406  Salix laevigata W. L. Jepson 1899-4-19 140 Contra Costa Moraga Valley 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
  UC2028239  Salix laevigata Barbara Ertter, Tony Morosco 1998-9-18 16428 Contra Costa Lime Ridge Open Space northwest of Mount 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
  CDA33974  Salix lasiolepis D. G. Kelch 2011-3-31 11 .08 Contra Costa Carquinez Region; Richmond; Hilltop Lake Park. Comment
  JEPS77014  Salix lasiolepis Robert M. Lloyd 1963-3-17 2141 Contra Costa 0.5 mi e of intersection of Grizzly Peak Rd. and Skyline Drive (on Skyline (across from 7090 Skyline), Huckleberry trail) Comment
  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
  UC1196651  Salix lasiolepis Joseph P. Tracy 1932-9-10 10785 Contra Costa Rodeo Creek Northern Coast Ranges (on Franklin Canyon Rd.) 60 Comment
  UC692055  Salix lasiolepis Mary L. Bowerman 1932-8-27 1520 Contra Costa spring s Turtle Rock; Mount Diablo Comment
  UC692056  Salix lasiolepis Mary L. Bowerman 1931-2-22 519 Contra Costa Sycamore Canyon; mouth Comment
  UCD150912  Salix lasiolepis James A. Neilson Jr.; Samuel A. Bamberg 1972-10-22 3495 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  CAS-BOT-BC129599  Salix lasiolepis var. lasiolepis Mary L. Bowerman 1933-4-9 1830 Contra Costa Donner Canyon, west fork; stream-bed below Twin Peaks - Mount Diablo Comment
  CAS-BOT-BC129555  Salix lasiolepis var. lasiolepis Mary L. Bowerman 1932-8-27 1519 Contra Costa Spring south of Turtle Rock (by a large group of willows) - Mount Diablo Comment
  UCR265174  Salpichroa rhomboidea Barbara Ertter 1991-5-12 9818 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
  CAS-BOT-BC180753  Salsola tragus Walter Knight; Joanne Dean 1978-8-14 3114 Contra Costa Browns Island Comment
  RSA739938  Salsola tragus P. Akers 2003-10-7 B- 107 Contra Costa Contra Costa water district, E edge of Discovery Bay on Hwy 4. 8 Comment
  SEINET7718207  Salvia carduacea Chesnut, Drew 1889-4-18 Contra Costa Antioch Comment
  UC1124728  Salvia columbariae C. M. Belshaw 1936-5-8 2054 Contra Costa se slope Mt. Diablo; Mt. Diablo Quad. 990 Comment
  UC691727  Salvia columbariae Mary L. Bowerman 1930-6-7 290 Contra Costa Mount Diablo Comment
  CDA34981  Salvia elegans Barbara Ertter 2010-5-12 19829 Contra Costa Miller Knox Regional Shoreline at south edge of Point Richmond, southernmost path from Old Country Road to Dornan Drive. 0 Comment
  UC634921  Salvia mellifera H. L. Mason 1925-3-10 1291 Contra Costa Mount Diablo Comment
  UC883961  Salvia mellifera Lewis S. Rose 1941-3-22 41057 Contra Costa w slope Mt. Diablo 609 Comment
  UCD125358  Salvia mellifera Beecher Crampton 1956-5-14 3406 Contra Costa Southern boundary of Mount Diablo State Park. Comment
  PASA488  Salvia mellifera Annetta Carter 1929-3-31 Contra Costa Near Clayton, Foothill north of Mt. Diablo Comment
  SEINET12273224  Salvia mellifera M. T. Doutt 1930-1 89 Contra Costa Marsh Creek Comment
  CAS-BOT-BC238633  Sambucus nigra subsp. caerulea Mary L. Bowerman 1930-8-31 452 a Contra Costa Mount Diablo. Sloan Road, Curry Canyon (east of the Sloan Place) Comment
  JEPS13385  Sambucus racemosa var. racemosa Mrs. E. L. Mossman 1931-4-1 93 Contra Costa Wildcat Canyon Berkeley Hills Comment
  CAS-BOT-BC223248  Sanicula bipinnata Mrs. Brandegee No date on label s.n. Contra Costa Antioch Comment
  UCR66591  Sanicula bipinnata L. S. Rose 1934-3-21 34063 Contra Costa 3-6 mi east of Clayton Comment
  SEINET10545764  Sanicula bipinnata John T. Middleton 1936-4-18 Middleton 146 Contra Costa Comment
  RSA471438  Sanicula bipinnatifida Joseph A. Ewan 1936-4-19 9464 Contra Costa W. slope of Wildcan Canyon Comment
  UC1795705  Sanicula bipinnatifida Barbara Ertter, Dale Sanders, Dan Norris 1994-3-26 12335 Contra Costa Peyton Hill east of I-680 east of Martinez, south of Waterfront Road 30 Comment
  UC579860  Sanicula crassicaulis Annetta Carter 1936-4-19 1123 Contra Costa San Francisco Bay, Red Rock Red Rock; San Francisco Bay, Red Rock Comment
  UC2028121  Sanicula crassicaulis Barbara Ertter with Richard K. Brummitt 1998-5-6 16087 Contra Costa Lower Donner Canyon Road on north base of Mount Diablo, ca 1/2 miles south of Donner cabin site. Comment
  PASA1824  Sanicula menziesii Annetta Carter 1929-3-31 Contra Costa Near Clayton. Hills north of Mt. Diablo Comment
  UC766927  Sanicula tuberosa R. F. Hoover 1935-3-10 301 Contra Costa Nortonville Comment
  UCD102395  Sanicula tuberosa Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Bald Ridge Trail. Bald Ridge. 900 Comment
  JEPS43797  Saxifraga californica E. W. Hicks 1917-3-24 107 Contra Costa Mount Diablo 304 Comment
  CDA42438  Scandix pecten-veneris D. G. Kelch 2012-5-29 12 .091 Contra Costa Carquinez Strait Region; Point Pinole. 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
  CAS-BOT-BC7627  Schoenoplectus acutus var. occidentalis Walter Knight; Joanne Dean 1978-8-14 3185 Contra Costa Browns Island. Comment
  UC2070487  Schoenoplectus acutus var. occidentalis Barbara Ertter 2002-11-11 18077 Contra Costa Round Valley Regional Preserve east of Mount Diablo. Comment
  CDA15249  Scirpus maritimus G. F. Hrusa, D. Crowe 1998-5-8 14380 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  UC971682  Scirpus maritimus Leo Koch 1940-6-5 1004 a Contra Costa near highway saline flat two mi s San Rafael ferry dock; s of San Rafael ferry dock Comment
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Apr 14 2009
  UC691605  Scrophularia californica Mary L. Bowerman 1930-6-18 344 Contra Costa Dan Cook Canyon Mt Diablo Comment
  UC2070589  Scrophularia californica Barbara Ertter 2003-3-28 18124 Contra Costa Round Valley Regional Preserve. Round Valley Creek at north end of Round Valley. Comment
  UC1606369  Scutellaria tuberosa Barbara Ertter, Brad Olson 1992-4-13 10952 Contra Costa 1 mi from Curry Point (Mount Diablo State Park, Knobcone Point Road); Mount Diablo State Park, Knobcone Point Road 487 Comment
  UC25837  Scutellaria tuberosa unknown 1037 Contra Costa Walnut Creek Comment
  UC615114  Scutellaria tuberosa Beryl O. Schreiber 1932-5-15 276 Contra Costa Mount Diablo Comment
  RSA0068478  Scutellaria tuberosa Katie Gallagher, Nick Jensen 2014-4-26 200 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  JEPS99566  Sedum radiatum Mary Bowerman 1975-6-1 Contra Costa Mount Diablo, (probably along Falls Trail). Comment
  UC195562  Senecio aphanactis E. L. Greene 1888-3-25 Contra Costa Byron Comment
  UC691353  Senecio aronicoides Mary L. Bowerman 1930-6-10 304 Contra Costa summit Meridian Peak (Mount Diablo); , Meridian Peak summit Comment
  UCD102385  Senecio aronicoides 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
  CAS-BOT-BC327443  Senecio flaccidus var. douglasii Walter Knight 1965-9-7 1173 Contra Costa Antioch 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
  UC1561248  Senecio minimus Barbara Ertter 1989-9-30 8862 Contra Costa along streamlet at base of brush-covered slope,just n Tilden Park border; Wildcast Regional Park, East Bay Skyline Natl Recreation Tr Comment
  UC691362  Senecio sylvaticus Mary L. Bowerman 1933-5-25 2180 Contra Costa w end s face Oyster Ridge (Mount Diablo); , , w end of s face, in burned chapa 396 Comment
  JEPS37191  Senecio vulgaris W. L. Jepson 1921-5-22 9200 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC80262  Sequoia sempervirens H. M. Hall 1902-3-4 2700 Contra Costa San Leandro Creek Comment
  UC2028515  Setaria pumila Barbara Ertter 1996-11-24 15420 Contra Costa West side of Mount Diablo, upstream from Pine Pond along Stage Road in Pine Canyon, floodplain at junction with Dusty Road Comment
  UC1046442  Sidalcea malviflora subsp. laciniata Alex D. Hawkes and R. Bacigalupi 1951-4-21 4771 Contra Costa meadow near Walnut Creek; Meadow near Walnut Creek Comment
  UC1555371  Sidalcea malviflora subsp. laciniata Jerry Powell 1988-4-1 1530 Contra Costa Point Molate Richmond (in w Richmond) Comment
  UC1949061  Sidalcea malviflora var. malviflora Barbara Ertter 1991-6-1 10075 Contra Costa Las Trampas Regional Wilderness in hills W of Danville, steep E-facing slope at N end Rocky Ridge Trail Comment
  UC692651  Silene californica Mary L. Bowerman 1935-6-15 3138 Contra Costa crest of Eagle Point ridge at edge of chaparral and on margin of chaparral on w face..Arctostaphylos..Quercus burned in 1931 Mount Diablo, Eagle Point Ridge (are bordered by band Eriodictyon..) 792 Comment
  CDA31177  Silene gallica D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .219 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  JEPS111786  Silene gallica D. G. Kelch 2004-5-7 04 .188 Contra Costa Ca ada del Cierbo Ca ada del Cierbo 40 Comment
  JEPS99539  Silene gallica Mary L. Bowerman 1976-6-24 Contra Costa Mount Diablo, Fire trail from crest of Inner Black Hills to Sycamore Creek. Comment
  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
  CHSC21619  Sinapis arvensis Willis Ball 1974-4-21 427 Contra Costa Contra Loma Regional Park. In island in center of main parking lot at s end of lake. 36 Comment
  JEPS100011  Sinapis arvensis G. Smick 2003-4-8 GAS 131 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691260  Sinapis arvensis Mary L. Bowerman 1932-3-6 1106 Contra Costa immediately n of Blackhawk Ranch (Mount Diablo, Sycamore Canyon); Mount Diablo, Sycamore Canyon Comment
  CAS-BOT-BC74936  Sinapis arvensis Mary L. Bowerman 1938-5-25 3634 Contra Costa Mount Diablo. North Road 2 miles from North Gate. 182 Comment
  RSA128364  Sinapis arvensis P. H. Raven 1950-3-5 1405 Contra Costa 0.75 mile from place where it meets Orinda - Richmond Road, Bear Creek Road. 107 Comment
  UCD115408  Sinapis arvensis Morris Halperin 1929-4-21 s.n. Contra Costa Franklin Canon. Comment
  JEPS100077  Sisymbrium officinale A. Langston 2003-6-19 AL 49 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  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
  CHSC24717  Sisyrinchium bellum G. Strang 1976-4-13 12 Contra Costa Hills directly S.W. of archery range in Briones Park. 182 Comment
  JEPS64283  Sisyrinchium bellum W. L. Jepson 1922-5-23 9670 Contra Costa n slope Mount Diablo Comment
  CAS-BOT-BC231746  Solanum lanceolatum Robert De Boer; M. Bergseng 1959-8-14 2943 Contra Costa 2459 Alva, El Cerrito Comment
  CDA5987  Solanum rostratum J. Moon 1959-7-3 Contra Costa Macdonald Avenue and railroad yard, Richmond. 0 Comment
  UC176058  Solanum umbelliferum Dr. J. H. Goodspeed 1913-5-3 Contra Costa Moraga Valley Comment
  CAS-BOT-BC156306  Solanum umbelliferum anonymous 1900-3-26 s.n. Contra Costa Oakley. 6 m. E. of Antioch Comment
  POM215197  Solanum umbelliferum D. D. Keck 1933-11-2 2619 Contra Costa 1 mile SE of Oakley. Comment
  UCD127020  Solanum umbelliferum Laurence S. Jones 1934-4-8 s.n. Contra Costa Mount Diablo. 609 Comment
  UC1051128  Solanum xanti N. Floy Bracelin 1943-8-22 2584 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  SEINET7262086 Image available Solanum xanti A. A. Heller 1908-4-16 8889 Contra Costa E of Antioch Comment
  JEPS78880  Solidago velutina subsp. californica Edward Lee 1936-12-12 2608 Contra Costa s Berkeley Country Club Comment
  UC691808  Solidago velutina subsp. californica Mary L. Bowerman 1930-8-24 434 Contra Costa Mitchell Canyon , Mitchell Canyon (Mount Diablo) 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
  CDA15259  Sonchus asper G. F. Hrusa, D. Crowe 1998-5-8 14390 Contra Costa Sacramento Delta; E end of Dow Chemical property in Pittsburg. Comment
  UC2028287  Sonchus asper Barbara Ertter 1998-6-20 16235 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Alkali Pond at Wiget Lane entrance. Comment
  CHSC116608  Sonchus asper subsp. asper Lowell Ahart; Josephine Guardino 2016-4-19 20769 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
  UC606734  Sonchus oleraceus Edward Lee 1936-4-19 1955 Contra Costa ne shore Red Rock (San Francisco Bay); , ne shore Red Rock Comment
  UCD146721  Sonchus tenerrimus G. F. Hrusa; D. Crowe 1998-5-8 14376 Contra Costa Sacramento-San Joaquin River Delta. On Dow Chemical property at Pittsburg. Adjacent to shore of San Joaquin River. 2 Comment
  JEPS111779  Spergula arvensis A. G. Murdock 2004-3-5 214 Contra Costa Martinez - Rankin Open Space Along fire road at north end of park 80 Comment
  UC2028042  Spergula arvensis subsp. arvensis Barbara Ertter 1998-3-1 15925 Contra Costa Diablo Foothills Regional Park, Ridge Trail on ridge east of Old Borges Ranch. Comment
  UC1795742  Spergularia bocconi Barbara Ertter, Mary Bowerman et al. 1995-5-7 14027 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, along road thru annual grassland with scattered blue oak south of Marsh Creek Road summit. 304 Comment
  CDA24126  Spergularia macrotheca var. longistyla D. G. Kelch 1992-3-21 1828 -A Contra Costa 2.5 mi. SE of Byron; along RR tracks, N of junction of Holey Rd. and Byron Hwy. 0 Comment
  JEPS111787  Spergularia macrotheca var. macrotheca D. G. Kelch 2005-3-24 05 .48 Contra Costa Point Pinole Pt. Pinole near wharf 2 Comment
  CDA15233  Spergularia marina G. F. Hrusa, D. Crowe 1998-5-8 14362 Contra Costa Sacramento Delta; \ E end of Dow Chemical property at Pittsburg. Comment
  CDA15279  Spergularia marina G. F. Hrusa, D. Crowe, R. York 1998-7-17 14717 Contra Costa Sacramento Delta; E end of Dow Chemical property at Pittsburg. Comment
  SEINET11268258  Spergularia marina Barbara Ertter 2001-5-8 17630 Contra Costa Northwest flank of Mount Diablo, tributary of Galindo Creek on south side of knoll SW of Mount Zion.; 0 Comment
  SFV1240  Spergularia marina J. M. Tucker 1963-4-12 3687 Contra Costa West side of Holey Road, 3 miles southeast of Byron. Comment
  UC2036957  Spergularia rubra Mary L. Bowerman 1946-2-10 4081 Contra Costa Hard ground by C.C.C. camp. Comment
  NY222084  Sphaeralcea fasciculata var. elmeri A. D. E. Elmer 06 1903 4395 Contra Costa Mt. Diablo Comment
  POM215114  Stachys ajugoides J. T. Howell 1932-10-16 10818 Contra Costa Near San Ramon. Comment
  UC70569  Stachys ajugoides var. rigida Miss Carlotta Case July, 1904 Contra Costa Muir Station Comment
  CDA33902  Stachys pycnantha Swan/Fonseca 2008-9-11 PDR# 1454523 Contra Costa Concord; Pine Creek 0 Comment
  JEPS112477  Stachys pycnantha D. G. Kelch 2004-7-9 04 .303 Contra Costa McEwen Road McEwen marsh. McEwen Road North of Cummings Skyway Contra Costa County CA 130 Comment
  JEPS63040  Stachys pycnantha Mary L. Bowerman 1930-6-28 402 Contra Costa Lower Silver Spring Mount Diablo Comment
  UC2055621  Stachys pycnantha Joseph Andorfer Ewan 1933-10-15 8043 Contra Costa Mt. Diablo. 1066 Comment
  POM181457  Stellaria media I. L. Wiggins 1930-4-18 4598 Contra Costa N end of Jersey Island. Comment
  JEPS99599  Stellaria nitens Mary Bowerman 1978-4-19 Contra Costa Mount Diablo, Back Canyon Comment
  UC2070629  Stellaria nitens Barbara Ertter with Joanne Kerbavaz, David Gowen, Mike Park and Victoria Seidman 2004-4-20 18362 Contra Costa Eagle Peak Trail on east side of Twin Peaks, north side of Mount Diablo. Comment
  CAS-BOT-BC375205  Stephanomeria elata John Thomas Howell 1925-11-1 1544 Contra Costa Moraga Ridge, Oakland Hills Comment
  CDA22494  Stephanomeria virgata subsp. pleurocarpa D. G. Kelch, Mike Park 2008-9-1 8 .289 Contra Costa Carquinez Strait; Ozol Rock W of Martinez. Comment
  UC571570  Stephanomeria virgata subsp. pleurocarpa H. K. Sharsmith 1933-9-24 Contra Costa highway w Walnut Creek Comment
  UC2029082  Stephanomeria virgata subsp. pleurocarpa Barbara Ertter 2000-7-29 17439 Contra Costa Donner Basin on north side of Mount Diablo, opening on lower end of Middle Trail between Meridian Ridge Road and first stream crossing. Comment
  UC1950089  Stipa cernua Barbara Ertter 1990-5-19 8998 Contra Costa Layfayette Ridge of Briones Regional Park N of Lafayette; S-facing slope S of Russell Peak Comment
  UC2028380  Stipa lepida Barbara Ertter 1998-6-20 16243 a Contra Costa Shell Ridge Open Space on NW side of Mount Diablo,below picnic ground at Old Borges Ranch Comment
  UC2070623  Stipa lepida Barbara Ertter 2002-5-11 17847 b Contra Costa Southwest base of Mount Diablo, lower end of Summit Trail in Dan Cook Canyon ca. half mile from South Gate Road. Comment
  SD34503  Stipa pulchra A. A. Beetle 1941-3-28 1718 Contra Costa Orinda, in sandy soil of open cut Comment
  SEINET10603924  Stipa pulchra Alan A. Beetle 1941-3-28 Beetle 1718 Contra Costa Orinda, in sandy soil of open cut. Comment
  UC2070615  Stipa pulchra Barbara Ertter 2002-5-16 17851 Contra Costa Richmond Field Station (UC-Berkeley). Comment
  CAS-BOT-BC87337  Streptanthus hispidus R. Bacigalupi 1946-5-30 2782 Contra Costa Along auto road up Mount Diablo, about 0.5 mile below Juniper Camp. Comment
  CAS-BOT-BC87339  Streptanthus hispidus J. W. Congdon 1896-5-30 s.n. Contra Costa Mount Diablo. Comment
  SBBG72132  Streptanthus hispidus unknown 1895-1 Contra Costa Mt Diablo Comment
  UC1292724  Streptanthus hispidus Freed W. Hoffman 1949-4-17 2766 Contra Costa Eagle Peak, E side, very near the summit Mount Diablo 725 Comment
  UCD102376  Streptanthus hispidus Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 1050 Comment
  UC1950412  Stuckenia pectinata Barbara Ertter with Lynne Hosley 1991-9-22 10824 Contra Costa Lafayette Reservoir in hills SW of Lafayette, at E end of dam Comment
  RSA0026147  Stuckenia pectinata Barbara Ertter 1998-6-20 16251 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Gypsy Flat Pond SW of Old Borges Ranch. Also in Joaquin Pond. Comment
  CAS-BOT-BC422907  Stylomecon heterophylla Paul F. Covel 1936-5-17 156 Contra Costa Mt Diablo, on trail summit-north peak. Comment
  CAS-BOT-BC422914  Stylomecon heterophylla Volney Rattan 1883-4-1 s.n. Contra Costa Martinez Comment
  CAS-BOT-BC422917  Stylomecon heterophylla Volney Rattan 1879-1-1 s.n. Contra Costa Antioch Comment
  JEPS75474  Stylomecon heterophylla P. F. Yorks 1975-5-15 396 Contra Costa on Hampton Road ca 1.9 km s of Bear Creek Road in Hampton Road Natural Reserve (n of Briones Reservoir); , n of Briones Reservoir Comment
  UC1733834  Stylomecon heterophylla Kay H. Beach 1941-4-30 1078 Contra Costa 7 mi W of Byron; Marsh Creek 30 Comment
  UC692176  Stylomecon heterophylla Mary L. Bowerman 1930-6-14 323 Contra Costa not far below summit Meridian Peak Mount Diablo; , not far below summit Meridian Peak Comment
  UC7235  Suaeda moquinii T. J. Storer Sep 1899 Contra Costa Byron Springs Comment
  LA204633  Symphoricarpos albus J. A. Ewan; 1936-5-3 9500 Contra Costa Wildcat Creek Comment
  CAS-BOT-BC269562  Symphoricarpos albus var. laevigatus V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Val. Comment
  RSA428933  Symphoricarpos albus var. laevigatus E. E. Stanford 1930-5-24 1509 Contra Costa Marsh Creek Canyon. Comment
  CAS-BOT-BC269561  Symphoricarpos albus var. laevigatus Paul F. Covel 1936-4-19 207 Contra Costa Las Trampas Cyn (Cashion Cn) Comment
  UC2043054  Symphyotrichum lanceolatum var. hesperium Barbara Ertter with Brad Olson 1991-9-28 10851 Contra Costa S end San Pablo Reservoir between Orinda and El Sobrante. Comment
  JEPS99582  Symphyotrichum subspicatum Mary Bowerman 1993-11-8 Contra Costa Mount Diablo. by tributary of Pine Creek southerly form just east of Pine Pond; North of tiny pond shown on MDIA map, 4th edition. (NW of Wall Pt. road junction) 243 Comment
  CAS-BOT-BC98332  Symphyotrichum subulatum var. parviflorum Walter Knight; W. Roderick; S. Edwards 1978-9-19 3255 Contra Costa Browns Island, South Landing Comment
  CDA37133  Tamarix parviflora Wil Schaub 2012-4-19 PDR# 1641195 Contra Costa Lafayette; 3954 Las Arabis Drive. 0 Comment
  UC1607567  Tamarix parviflora Barbara Ertter 1993-4-2 11480 Contra Costa west of Crockett (below Vista Road, abandoned railroad station); Carquinez Regional Park Comment
  CHSC75158  Tanacetum parthenium Roger Thom 1987-5-24 14 Contra Costa 3354 Johnson Rd., Lafayette. 167 Comment
  HSC6267  Taraxacum officinale Greg Bos 1963-3-9 38 Contra Costa 5712 San Jose Ave. Richmond 61 Comment
  UCD35996  Taraxia ovata Beecher Crampton 1949-4-21 426 Contra Costa Contra Costa County, city of Richmond, in vacant lot near Santa Fe Railroad, S. 14th Street. 7 Comment
  UC21430  Tauschia hartwegii Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  UCD128119  Tauschia hartwegii P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  JEPS49692  Tellima grandiflora W. L. Jepson 1891-6-9 13461 Contra Costa Fish Ranch Comment
  UCD96956  Tetragonia tetragonoides G. Thomas Robbins 1958-7-19 3906 Contra Costa Pt. Orient, San Francisco Bay, about 3/4 mile south of Pt. San Pablo, Potrero San Pablo, Richmond. Comment
  UC2062659  Tetrapteron graciliflorum Barbara Ertter with Chris Thayer 2002-4-13 17829 Contra Costa North side of Mount Diablo. Comment
  CAS-BOT-BC197425  Thinopyrum ponticum T. C. Fuller 1961-9-13 7001 Contra Costa Hwy J4, ca. 4 mi. se. of Byron Comment
  HSC101956  Thysanocarpus curvipes Nikolaus Gillen, Michelle Bihler 2014-3-20 8 Contra Costa Mount Diablo State Park. Back Creek Trail. 340 Comment
  JEPS100076  Thysanocarpus curvipes G. Smick 2003-4-8 GAS 126 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS54181  Thysanocarpus curvipes W. L. Jepson 1891-5-24 5 g Contra Costa Mt. Diablo Comment
  UC691059  Thysanocarpus curvipes Mary L. Bowerman 1932-4-27 1377 Contra Costa Oyster Ridge s face, canyon w of Riggs Canyon Mount Diablo; , s face Oyster Ridge, w of Riggs Canyon 297 Comment
  UC857551  Thysanocarpus curvipes Lewis S. Rose 1940-4-11 40183 Contra Costa 11 mi se Clayton (Marsh Creek); Marsh Creek 45 Comment
  UC11030  Thysanocarpus curvipes subsp. curvipes Brewer 1862-1 Contra Costa Mount Diablo Comment
  SEINET3166335  Thysanocarpus laciniatus P. J. Alexander, C. D. Bailey 2009-3-30 968 Contra Costa Mount Diablo State Park, 0.3 miles east of the summit of Mt. Diablo on the trail to North Peak, 8.7 miles ESE of central Walnut Creek. 1006 Comment
  UC691140  Thysanocarpus laciniatus Mary L. Bowerman 1931-5-7 805 Contra Costa North Peak ridge Mount Diablo (slightly n of crest, Mount Diablo); , North Peak ridge Comment
  JEPS9890  Tonella tenella Mary L. Bowerman 1935-5-18 3023 Contra Costa Mount Diablo; nw-facing slope across the road from, and a little e of, the parking area 1066 Comment
  CDA33815  Tonella tenella D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .112 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  JEPS100128  Torilis arvensis A. Langston 2003-7-9 AL 61 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS887  Torilis nodosa W. L. Jepson 1923-4-22 9863 Contra Costa Mt Diablo Comment
  UC692376  Torilis nodosa Mary L. Bowerman 1930-6-3 230 Contra Costa North road 1.9 miles from entrance 167 Comment
  CAS-BOT-BC172938  Toxicodendron diversilobum B. Lacoste 1920-10-1 s.n. Contra Costa On hill slope by Lake Aliso Comment
  SEINET5577082  Toxicodendron diversilobum H. S. Gentry 1931-1 56 Contra Costa Collected on Mt. Diablo near Buckle Point. Comment
  UC2025092  Toxicoscordion fremontii Fayla Schwartz 1990-3-19 116 Contra Costa Contra Costa Co.: 1.5 miles up Diablo Scenic Blvd. from entrance to Mt. Diablo State Park. 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
  UC691399  Trichostema lanceolatum Mary L. Bowerman 1930-8-31 450 a Contra Costa Inner Black Hills E of main road Mount Diablo Comment
  HSC17937  Trientalis latifolia J. Wendell Howe 1930-5-25 Contra Costa Moraga Rd. Comment
  JEPS65687  Trifolium albopurpureum W. L. Jepson 1923-4-22 9860 Contra Costa Mount Diablo Comment
  UC1129956  Trifolium albopurpureum var. albopurpureum C. M. Belshaw 1936-5-8 2056 Contra Costa Mt. Diablo Mt. Diablo Quadrangle 990 Comment
  UC165553  Trifolium albopurpureum var. albopurpureum J. Burtt Davy 1895-1 956 Contra Costa Antioch Comment
  UCR263556  Trifolium albopurpureum var. dichotomum Barbara Ertter, R. K. Brummitt 1998-5-13 16131 Contra Costa San Francisco Bay Region, Summit Road on Mount Diablo, above Juniper Camp 905 Comment
  JEPS65682  Trifolium albopurpureum var. olivaceum Willis L. Jepson 1891-6-9 13671 Contra Costa Fish Ranch Berkeley Hills Comment
  UC764663  Trifolium bifidum var. bifidum R. F. Hoover 1938-5-4 3352 Contra Costa e Tassajero Creek (peak) Comment
  UC2028209  Trifolium bifidum var. decipiens Barbara Ertter 1998-5-3 16072 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, near Wall Point. Comment
  CDA28898  Trifolium campestre D. G. Kelch, Jessica Kolman 2009-5-29 9 .309 Contra Costa Carquinez Strait; Pinole Valley Park, near ridgetop. Comment
  CDA28873  Trifolium ciliolatum D. G. Kelch, Jessica Kolman 2009-5-29 9 .312 Contra Costa Carquinez Strait; Pinole Valley Park, near ridgetop. Comment
  CHSC24925  Trifolium ciliolatum M. A Callahan 1976-4-15 20 Contra Costa Ca. 15 mi ne of house at 1976 Mohawk Dr. Pleasant Hill. 121 Comment
  RSA0068498  Trifolium ciliolatum Katie Gallagher, Nick Jensen 2014-4-26 176 Contra Costa Las Trampas Regional Wilderness. 365 Comment
  POM313531  Trifolium depauperatum var. amplectens P. B. Kennedy 1929-4-25 10245 Contra Costa Briones Valley, Marsh Creek road. Comment
  UC2028085  Trifolium depauperatum var. depauperatum Barbara Ertter, Tony Morosco 1998-4-12 15982 Contra Costa Base of Mount Olympia on north side of Mount Diablo south side of lower end of Olympia Trail. Comment
  UC1586032  Trifolium depauperatum var. truncatum Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8134 Contra Costa w and adjscent to Clifton Court Forebay (ca 15 air mi sw of Stockton); ; SESW 0 Comment
  UC555354  Trifolium depauperatum var. truncatum H. L. Mason 1929-4-25 5208 Contra Costa Marsh Creek Rd Comment
  UC2028126  Trifolium depauperatum var. truncatum Barbara Ertter with Richard K. Brummitt 1998-5-6 16081 a Contra Costa Base of Mitchell Rock Trail on north base of Mount Diablo. Comment
  CHSC116657  Trifolium dubium Lowell Ahart; Josephine Guardino 2016-4-19 20768 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides of the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  CDA4276  Trifolium fragiferum D. G. Kelch, A. G. Murdock 2005-6-24 5 .389 Contra Costa Carquinez Strait Region; Franklin Canyon at McEwen Road. Comment
  JEPS65864  Trifolium fucatum W. L. Jepson 1896-5-29 13720 Contra Costa Wild Cat Creek Berkeley Comment
  UCD109022  Trifolium fucatum P. B. Kennedy 1929-4-21 10229 Contra Costa Franklin Canyon Road from Concord Soldier's Monument. Comment
  UC631032  Trifolium gracilentum Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  UC692664  Trifolium gracilentum Mary L. Bowerman 1935-4-12 2817 Contra Costa 2 mi from entrance (West Rd); Mount Diablo 259 Comment
  UC692691  Trifolium gracilentum Mary L. Bowerman 1932-4-27 1389 Contra Costa w Riggs Canyon (Oyster ridge, s face of canyon); Mount Diablo Comment
  CDA15258  Trifolium hybridum G. F. Hrusa, D. Crowe 1998-5-8 14389 Contra Costa Sacramento Delta; E end of Dow Chemical property in Pittsburg. Comment
  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
  UC692671  Trifolium microcephalum Mary L. Bowerman 1932-4-27 1392 Contra Costa canyon w Riggs Canyon; Mount Diablo, Oyster Ridge Comment
  UC1130084  Trifolium microdon C. M. Belshaw 1936-5-7 2043 Contra Costa 2 mi s San Ramon; Mt. Diablo quadrangle 274 Comment
  UC692641  Trifolium obtusiflorum Mary L. Bowerman 1935-5-25 3077 Contra Costa Rhine Canyon Mount Diablo (side of gully containing streamlet) 914 Comment
  UC2028158  Trifolium oliganthum Barbara Ertter 1998-4-4 15953 Contra Costa Shell Ridge Open Space northwest of Mount Diablo. Comment
  UC2070437  Trifolium oliganthum Barbara Ertter with Dan Norris 2001-4-8 17592 Contra Costa Lime Ridge Open Space east of Walnut Creek, path northwest of summit installation. Comment
  UC555403  Trifolium oliganthum H. L. Mason 1929-3-29 5131 Contra Costa 2 mi above Clayton (Marsh Creek Rd) Comment
  RSA721202  Trifolium olivaceum var. olivaceum Barbara Ertter 1995-5-29 14225 Contra Costa Mt. Diablo southeast of Walnut Creek, serpentine knoll ca 1/2 airmile north of Curry Point 488 Comment
  UCR263551  Trifolium tomentosum Barbara Ertter 2002-5-8 17832 Contra Costa San Francisco Bay Region, Richmond Field Station 6 Comment
  CAS-BOT-BC26494  Trifolium triflorum M. K. Curran 1883-1-1 s.n. Contra Costa Near Mt. Diablo Comment
  UC16787  Trifolium variegatum Ivar Tidestrom 1893-4-15 Contra Costa Sheep Island Comment
  JEPS70759  Trifolium willdenovii L. R. Heckard 1971-4-22 2493 Contra Costa e Pinole (rr grade near US Hwy 80 crossing) Comment
  UC165499  Trifolium willdenovii J. Burtt Davy 1895-4-13 1001 Contra Costa San Pablo Creek Comment
  UC16730  Trifolium willdenovii J. Burtt Davy 1895-4-7 991 Contra Costa Antioch Comment
  RSA517735  Trifolium willdenovii Donald G. Nelson 1937-3-30 474 Contra Costa Railroad tracks paralleling the highway south of Byron on road to Tracy Comment
  UC1819061  Trifolium willdenovii Barbara Ertter, Gary Schoolcraft 1996-4-7 14570 Contra Costa Point San Pablo in west Richmond, crest of road to yacht harbor, coastal grassland along ridge, scraped roadbed to tower. Comment
  UCD109510  Trifolium willdenovii A. A. Beetle 1939-4-12 1770 Contra Costa Pinole. Comment
  CAS-BOT-BC451764  Triglochin maritima Walter Knight; Joanne Dean No date on label 3131 Contra Costa Browns Island. Comment
  UC692010  Trillium chloropetalum Mary L. Bowerman 1931-5-21 2147 Contra Costa below <&> s. from Curry Canyon Grape Spring; Mt. Diablo Comment
  JEPS99597  Triodanis biflora Mary L. Bowerman 1978-5-14 Contra Costa Mount Diablo, Eagle Peak, mines trail. Comment
  UC691520  Triodanis biflora Mary L. Bowerman 1933-5-18 2130 Contra Costa Mount Diablo Comment
  UC103158  Triphysaria eriantha subsp. eriantha C. F. Baker 1903-4-27 2792 Contra Costa Byron Comment
  UC1046443  Triphysaria eriantha subsp. eriantha Alex D. Hawkes and R. Bacigalupi 1951-4-21 4772 Contra Costa meadow near Walnut Creek; meadow near Walnut Creek Comment
  UC1586061  Triphysaria eriantha subsp. eriantha Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8125 Contra Costa ca 15 air mi sw Stockton (se Contra Costa County); adjacent to Clifton Court Forebay 0 Comment
  UC691568  Triphysaria eriantha subsp. eriantha Mary L. Bowerman 1931-4-4 650 Contra Costa North Rd = near west road (between 1 and 4.5 mi from entrance) Mount Diablo Comment
  UC1818944  Triphysaria eriantha subsp. eriantha Barbara Ertter, Mary Bowerman et al. 1995-5-7 14042 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, damp road bed, clayey, in grassy flat south of pond, near edge of blue oak forest. Comment
  UC1562647  Triphysaria pusilla Barbara Ertter with John Little 1989-4-2 8105 Contra Costa Hillside Park El Cerrito (El Cerrito, level portions of old road); , Hillside Park Comment
  UC691572  Triphysaria pusilla Mary L. Bowerman 1933-5-4 1989 Contra Costa (Rock City Ridge) Fossil Ridge Mount Diablo; , (Rock City Ridge) Fossil Ridge Comment
  CDA41897  Triphysaria versicolor subsp. faucibarbata D. G. Kelch 2005-4-15 5 .145 Contra Costa Carquinez Strait Region; Rodeo Creek. EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  UC2070608  Trisetum canescens Barbara Ertter with Debra Trock 2005-6-25 18609 Contra Costa North end Redwood Regional Park, Stream Trail along Redwood Creek. Comment
  CAS-BOT-BC521582  Triteleia hyacinthina Mary L. Bowerman 1938-6-3 3651 Contra Costa Rock City 518 Comment
  HSC3044  Triteleia hyacinthina J. Wendell Howe 1930-5-23 114 Contra Costa Moraga Valley Comment
  JEPS112496  Triteleia laxa D. G. Kelch 2004-5-9 04 .204 Contra Costa Crockett - Upper Edwards Canyon, Crockett, above Crockett Blvd 160 Comment
  JEPS58038  Triteleia laxa W. L. Jepson 1923-6-10 9986 Contra Costa vicinity San Francisco Bay (Head of Marsh Creek); , Mt. Diablo, Marsh Creek Comment
  UC130929  Triteleia laxa Katharine Brandegee 1909-4-24 Contra Costa Antioch Comment
  CAS-BOT-BC522175  Triteleia laxa John Thomas Howell 1931-5-12 6468 Contra Costa Oakland Hills Comment
  CAS-BOT-BC67356  Tropidocarpum capparideum Alice Eastwood 1914-3-14 3824 Contra Costa Byron Springs. Comment
  RSA428387A  Tropidocarpum capparideum Edward L. Greene 1889-3-24 s.n. Contra Costa Byron Comment
  CAS-BOT-BC67407  Tropidocarpum gracile Lewis S. Rose 1934-3-21 34066 Contra Costa 6 miles east of Clayton. Comment
  CAS-BOT-BC67410  Tropidocarpum gracile James McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  CAS-BOT-BC67411  Tropidocarpum gracile Volney Rattan s.n. Contra Costa Antioch. Comment
  SBBG27387  Tropidocarpum gracile L. S. Rose 1934-3-21 34066 Contra Costa 6 mi E of Clayton Comment
  UC691062  Tropidocarpum gracile Mary L. Bowerman 1932-2-28 1092 Contra Costa ridge e Rhine Canyon; Mount Diablo 579 Comment
  CAS-BOT-BC67409  Tropidocarpum gracile Charles Piper Smith 1922-4-15 3493 Contra Costa Antioch - S.P. depot - 0.5 mile east. Comment
  POM204031  Tropidocarpum gracile L. S. Rose 1934-3-21 34066 Contra Costa 6 mi E of Clayton. Comment
  SEINET201988 Image available Typha domingensis Malcolm A. Nobs, S. Galen Smith 1949-1 879 Contra Costa about two miles south of Crocket on road to Martinez Comment
  UC1795648  Ulmus minor Barbara Ertter, Rich Rabeler 1994-6-18 12837 Contra Costa Pt. Pinole Regional Shoreline at north end of Richmond; northeast corner of park, near jct. Marsh Trail & Cook's Point Trail. Comment
  UC2028237  Ulmus pumila Barbara Ertter, Tony Morosco 1998-9-18 16434 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, above sand quarry [subsequently developed] on south side of Ygnacio Valley Road. Comment
  UC2070593  Ulmus pumila Barbara Ertter 2001-3-18 Contra Costa Shell Ridge Open Space SW of Walnut Creek, persisting at Indian Creek School. Comment
  CAS-BOT-BC91089  Umbellularia californica Mrs. H. C. Cantelow 1937-2-22 s.n. Contra Costa Mount Diablo. Comment
  CHSC22748  Umbellularia californica Robert A. Schlising 1962-2-21 2078 Contra Costa Berkeley-Oakland Hills of westernmost part of county. Comment
  SEINET3559460 Image available Umbellularia californica Lewis S. Rose 1933-10-22 33386 Contra Costa Wildcat Canyon. Comment
  CAS-BOT-BC91091  Umbellularia californica H. E. McMinn 1925-1-1 s.n. Contra Costa Head of San Leandro Creek. Comment
  CAS-BOT-BC381830  Uropappus lindleyi Alice Eastwood 1921-4-18 10291 Contra Costa Antioch Comment
  CDA8957  Uropappus lindleyi D. G. Kelch, A. G. Murdock 2005-5-13 5 .258 Contra Costa Carquinez Strait Region; Martinez - West: Ozol Rock and Scenic Drive. Area along Vista Road ~2.5 km west of Martinez. Comment
  JEPS111760  Uropappus lindleyi D. G. Kelch 2005-5-13 05 .258 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Area along Vista Road ~ 2.5 kiloms West of Martinez 45 Comment
  JEPS75558  Uropappus lindleyi P. F. Yorks 1974-4-28 147 Contra Costa ca 1.5 km s of Bear Creek Road on Hampton Road in Hampton Road Natural Reserve (n of Briones Reservoir) 160 Comment
  UC691468  Uropappus lindleyi Mary L. Bowerman 1933-5-9 2060 Contra Costa Muir Area , Muir Area (Mount Diablo) Comment
  UC691469  Uropappus lindleyi Mary L. Bowerman 1931-4-5 682 Contra Costa s Russelman Park (Mount Diablo); Mount Diablo 381 Comment
  UC691782  Uropappus lindleyi Mary L. Bowerman 1933-5-18 2137 Contra Costa Mount Diablo Comment
  UC2027813  Uropappus lindleyi Barbara Ertter with Stu Garrett 1997-3-29 15532 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  UC336484  Uropappus lindleyi unknown Contra Costa near Mt. Diablo Comment
  CAS-BOT-BC344883  Urtica Peter Rubtzoff 1968-9-18 5963 Contra Costa North Gate Road, ca. 5 miles northwest of Mt. Diablo State Park north entrance. Comment
  JEPS111918  Urtica dioica var. holosericea Dean G. Kelch and Andrew G. Murdock 2004-3-12 DGK 04 .018 Contra Costa Pinole Valley. Hillside and canyon above Wright Road. Off the Pinole Valley Road. Comment
  UC195614  Urtica urens I. J. Condit 1913-4-19 Contra Costa Richmond Annex Comment
  JEPS77020  Vaccinium ovatum Robert M. Lloyd 1963-3-17 2145 Contra Costa 0.5 mi e intersection of Grizzly Peak Road and Skyline Drive (on Skyline (across from 7090 Skyline)) Comment
  UC1714515  Verbascum blattaria unknown July 1892 Contra Costa Redwood Peak Comment
  UC2029170  Verbena lasiostachys var. scabrida Barbara Ertter 2000-7-16 17409 Contra Costa Pine Creek on WNW base of Mount Diablo. Comment
  UC2070533  Veronica americana Barbara Ertter with Dan Norris 2000-12-3 17555 Contra Costa West side Mount Diablo, Maple Spring on North Gate Road just south of Angel Kerley Road junction. Comment
  POM181452  Veronica peregrina subsp. xalapensis I. L. Wiggins 1930-4-17 4581 Contra Costa 1/4 mi. S. of Byron. Comment
  UC691563  Viburnum ellipticum Mary L. Bowerman 1933-5-19 2143 Contra Costa Sulphur Spring Canyon, e fork Mount Diablo 457 Comment
  CAS-BOT-BC267240  Viburnum ellipticum Mary L. Bowerman; Walter & Irja Knight 1967-11-6 2301 Contra Costa Near Curry Park in Morgan Territory, Sulphur Spring Canyon, half way between canyon source and active spring, 15 yards above creek 365 Comment
  UC1050363  Viburnum trilobum N. Floy Bracelin 1943-7-25 2187 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CDA23061  Vicia americana D. G. Kelch, D. A. Weinstein 2008-4-25 8 .086 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
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Jan 7 2016
  UC2028544  Vicia sativa subsp. nigra Barbara Ertter 1998-4-4 15945 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, grasslands SE of Indian Valley School. Comment
  UC2029002  Vicia sativa subsp. sativa Barbara Ertter 2000-5-14 16995 Contra Costa Lower Donner Canyon on north side of Mount Diablo, near Donner Cabin site. Comment
  JEPS107126  Vicia villosa subsp. varia Barbara Ertter, Mary Bowerman 1995-6-11 14250 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, at west base Mt. Diablo; near Indian Valley School entrance (planted Clarkia also present). 91 Comment
  JEPS127049  Vicia villosa subsp. varia Lowell Ahart, Josephine Guardino 2016-4-19 20764 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
  JEPS99507  Vicia villosa subsp. varia Mary Bowerman 1978-5-4 Contra Costa Mount Diablo, Nort Gate Rd. 3/4 above Arroyo del Cerro. Also lower down. Comment
  UCD109027  Vicia villosa subsp. varia Rimo Bacigalupi; L. Heckard, P. Silva 1962-4-16 8439 Contra Costa Adjacent to U.S. Highway 40. 2 miles south of Pinole Junction. Comment
  UC2029037  Vinca major Barbara Ertter 2000-3-30 16902 Contra Costa North base of Mount Diablo, lower Mitchell Canyon ca 1 miles from trailhead. Comment
  SJSU2616  Viola pedunculata W. E. Ferguson 1942-4-25 Contra Costa E base of Mt Diablo 304 Comment
  UC1121614  Viola pedunculata R. C. Wilson 1935-3-29 147 Contra Costa 1/2 mi s of Cave Pit 548 Comment
  UC19314  Viola pedunculata F. P. McLean March 1875 Contra Costa near Concord Comment
  POM135226  Viola pedunculata H. P. Chandler 1901-3-21 844 Contra Costa Concord. Comment
  SD48396  Viola pedunculata G. R. Campbell 1956-4-6 16 Contra Costa Between Round Top and summit, Mt. Diablo 305 Comment
  UC19317  Viola pedunculata Ivar Tidestrom 1893-4-15 Contra Costa Sheep Island; San Francisco Bay, Sheep Island Comment