Search Results — 2000 specimen records retrieved (1339 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UC1211990  Abutilon theophrasti R. P. and Perry Allen 1961-8-11 Contra Costa 4 mi e Byron Comment
  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
  UC1607582  Acacia melanoxylon Barbara Ertter 1991-5-12 9815 Contra Costa in sw corner of El Cerrito (Point Isabel Regional Shoreline, along old railroad right-of-way between bay and salicornia marsh, on San Francisco Bay); San Francisco Bay, Point Isabel Regional Shoreline Comment
  CDA35552  Acer macrophyllum D. G. Kelch, A. G. Murdock 2004-4-25 4 .109 Contra Costa Carquinez Strait Region; West Martinez on Scenic Drive at Road Gate. Ozol Rock. Comment
  JEPS42648  Acer macrophyllum W. L. Jepson 1916-10-28 6853 a Contra Costa Las Trampas Creek Comment
  SD45088  Acer macrophyllum W. Jones 1927-6-2 Contra Costa Crockett Comment
Read comments
Jul 11 2010
  UC692719  Acer macrophyllum Mary L. Bowerman 1931-3-21 605 Contra Costa Sycamore Canyon Mount Diablo, Sycamore Canyon Comment
  UC762183  Acer macrophyllum R. F. Hoover 1938-5-4 3345 Contra Costa peak e Tassajero Creek (canyon slope); Peak e of Tassajero Creek (canyon slope) Comment
  UCSB11596  Acer macrophyllum Grah, Nancy 1962-4-14 Contra Costa Corner of Lombardy Lane and Sleepy Hollow Lane, Orinda 152 Comment
  POM247254  Acer negundo subsp. californicum Annetta Carter 1937-3-28 1227 Contra Costa Moraga Valley, 2 1/2 miles north of Moraga 183 Comment
  JEPS100121  Achillea millefolium G. Smick 2003-4-22 GAS 141 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS37093  Achillea millefolium W. L. Jepson 1922-5-23 9651 Contra Costa Mt. Diablo Comment
  UC1948954  Achillea millefolium William J. Ferlatte, L. Maynard Moe 1970-4-27 1227 Contra Costa San Francisco Bay: Red Rock Island Comment
  RSA719886  Achillea millefolium Linda E. Watson 1996-5-19 96 -4 Contra Costa Foothills of Mt. Diablo, 11 miles east of Clayton, on road to Byron. Comment
  CAS-BOT-BC29882  Achyrachaena mollis J. H. Thomas 1953-4-25 2999 Contra Costa about 2 miles southwest of Brentwood 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
  JEPS112352  Acmispon wrangelianus Dean G. Kelch and Andrew G. Murdock 2004-4-11 04 .061 Contra Costa Crockett - 5th St. Prairie, County: Contra Costa; 5th street Prairie, Crockett. Comment
  JEPS60378  Actaea rubra W. L. Jepson 1916-9-3 6848 Contra Costa just below Redwood Peak (in Redwood Canyon); Oakland Hills, Redwood Canyon Comment
  CAS-BOT-BC133155  Adenostoma fasciculatum Brandegee s.n. Contra Costa Antioch Comment
  JEPS111516  Adenostoma fasciculatum D. G. Kelch 2005-5-13 05 .279 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Ozol rock in chamise chaparral 66 Comment
  SEINET4089806  Adenostoma fasciculatum B. C. Templeton 1962-1 sn Contra Costa Mount Diablo. Comment
  UC1127729  Adenostoma fasciculatum R. W. Lundh 1932-9-9 163 Contra Costa 1/2 mi. s.e. Nortonville; Mt. Diablo Quad. 381 Comment
  UC691159  Adenostoma fasciculatum Mary L. Bowerman 1930-6-5 256 Contra Costa w. (North Rd.) 5.8 mi. from entrance Mt. Diablo Comment
  CAS-BOT-BC65622  Adiantum jordanii D. E. Breedlove 1970-4-18 17432 Contra Costa at the north edge of Lafayette above Laurel Drive 243 Comment
  HSC93903  Adiantum jordanii C. Newberry 1994-4-30 7255 Contra Costa Mt. Diablo State Park, trail from Mitchell Canyon Parking to Donner Creek 900 Comment
  JEPS112048  Adiantum jordanii D. G. Kelch 2005-1-21 05 .6 Contra Costa Crockett - West Valona Collected along railroad tracks in West Valona across from the decommissioned sewage treatment plant. On north-facing slopes with Quercus agrifolia and Heteromeles arbulifolia and Pinus pinea 8 Comment
  CHSC22658  Aesculus californica Robert A. Schlising 1965-1-24 2740 Contra Costa North of Briones Reservoir along Hampton Road; 1.1 mi S of Jct with Garcia Ranch Road. Comment
  JEPS40101  Aesculus californica W. L. Jepson 1923-6-10 9984 Contra Costa Mt. Diablo Comment
  RSA401059  Aesculus californica Thekla Mohr 1917-07 3153 Contra Costa Mount Diablo Comment
  UC1952817  Ageratina adenophora Barbara Ertter 2010-5-12 19833 Contra Costa Miller Knox Regional Shoreline at south edge of Point RIchmond, dogleg turn in recently re-routed stretch of Crest Trail below False Gun point 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
  CAS-BOT-BC15428  Agoseris grandiflora var. grandiflora Alice Eastwood 1923-5-4 11736 Contra Costa Mt. Diablo Comment
  UC29388  Agoseris grandiflora var. grandiflora Jos. Burtt Davy 1901-4-21 7044 Contra Costa Wildcat Canon Wildcat Canon Comment
  POM203659  Agoseris heterophylla John T. Howell 1933-5-14 11260 Contra Costa Hills east of St. Mary's college Comment
  UC691793  Agoseris heterophylla var. heterophylla Mary L. Bowerman 1933-5-11 2093 a Contra Costa Rock City Ridge; Mt. Diablo Comment
  SBBG115406  Agropogon littoralis B. Crampton 1959-9-3 5454 Contra Costa ca. 2 mi N of Orinda, Bear Crk, East Bay Municipal Utilities District Project Comment
  JEPS96230  Agrostis avenacea Barbara Ertter, Brad Olson 1991-9-28 10831 Contra Costa San Pablo Reservoir between Orinda and El Sobrante (at s. end of reservoir); San Pablo Reservoir 91 Comment
  SEINET4344618 Image available Agrostis avenacea Barbara Ertter, Brad Olson 1994-5-7 12748 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay. 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
  RSA0027649  Agrostis capillaris Barbara Ertter, Amy Rusev 1998-1-17 15903 Contra Costa Edge of Lime Ridge Open Space at NW foot of Mount Diablo, around former quarry (subsequently developed) on south side of Ygnacio Vally Road. Comment
  JEPS100030  Agrostis exarata A. Langston 2003-6-6 AL 35 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  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
  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
  RSA0027413  Agrostis stolonifera Barbara Ertter, Richard K. Rabeler, Tony Morosco 1997-6-10 15670 Contra Costa Martinez Regional Shoreline, south edge of Carquinez Strait. Comment
  UC2028465  Agrostis stolonifera Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15670 Contra Costa Martinez Regional Shoreline, south edge of Carquinez Strait Comment
  UCD37582  Aira caryophyllea Beecher Crampton 1955-4-11 2471 Contra Costa Contra Costa County, city of Richmond, vacant lot at 42nd Street and Bissell Road. Comment
  POM300734  Aira caryophyllea Mary L. Bowerman 1942-5-24 3844 Contra Costa Lower Rock City Camp, Fossil Ridge 457 Comment
  UC2028522  Aira caryophyllea Barbara Ertter 1997-9-14 15810 Contra Costa Southwest side of Mount Diablo, Secret Trail at head of Pine Canyon. Comment
  UC692097  Alisma plantago-aquatica Mary L. Bowerman 1935-9-13 3331 Contra Costa scattered over the center Chase Pond; Mount Diablo Comment
  CAS-BOT-BC175363  Allenrolfea occidentalis E. E. Stanford 1930-8-1 1871 Contra Costa Near Old River Comment
  RSA411795  Allenrolfea occidentalis E. E. Stanford 1930-5-24 1520 Contra Costa Near Byron. Comment
  CAS-BOT-BC226  Allium breweri William Henry Brewer 1862-5-7 1060 Contra Costa Summit of Monte Diablo [Mount Diablo] Comment
  UC3071  Allium falcifolium W. H. Brewer 1862-5-7 1060 Contra Costa summit Monte Diablo; summit of Mt. Diablo Comment
  UC843253  Allium falcifolium Lewis S. Rose 1941-5-15 41237 Contra Costa summit of Mt. Diablo, Type Locality Mt. Diablo 1188 Comment
  CAS-BOT-BC469114  Allium falcifolium Alice Eastwood 1915-5-30 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC472778  Allium neapolitanum Walter Knight 1979-4-12 3448 Contra Costa Grangers Wharf, Martinez Regional Shoreline Comment
  CAS-BOT-BC475526  Allium serra Alice Eastwood 1895-4-8 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC475538  Allium serra Mary L. Bowerman 1930-6-18 338 Contra Costa Rock City Canyon; Mount Diablo Comment
  UCD138633  Allium serra E. W. Jones 1934-4-8 59 Contra Costa Mt. Diablo. Comment
  UC692021  Allium unifolium Mary L. Bowerman 1933-5-22 2165 Contra Costa flat at head of n ridge w 1970; Mount Diablo, Inner Black Hills Comment
  UCD118010  Allophyllum divaricatum Clifford Low 1978-5-19 3 Contra Costa Back Canyon Creek, east of Eagle Peak on Mount Diablo. 304 Comment
  JEPS108354  Allophyllum gilioides David Gowen 2005-4-3 223 Contra Costa Mt. Diablo State Park. Rhine Canyon just below Devils Elbow. Comment
  JEPS108359  Allophyllum gilioides David Gowen 2005-4-11 229 Contra Costa Mt. Diablo State Park. Below Devils Elbow in the upper part of Rhine Canyon drainage. Comment
  CAS-BOT-BC170928  Alnus rhombifolia W. C. Blasdale 1896-2-29 s.n. Contra Costa Clayton Comment
  CAS-BOT-BC170933  Alnus rhombifolia Alice Eastwood 1914-3-6 s.n. Contra Costa Redwood Canyon Comment
  JEPS58614  Alnus rhombifolia W. L. Jepson 1901-10-12 Contra Costa Mount Diablo Comment
  RSA21881  Alnus rhombifolia L. S. Rose 1938-10-28 38307 Contra Costa Marsh Creek, 6 miles E of Clayton. 152 Comment
  SEINET12027584  Alnus rhombifolia L. S. Rose 1938-1 38307 Contra Costa Marsh Creek, 6 mi E of Clayton 152 Comment
  SJSU7899  Alopecurus myosuroides H. G. Reeves 1972-5-8 Contra Costa W shore of San Pablo Reservoir near Bench Mark 24, 7 mi S of Dam Comment
  CAS-BOT-BC137969  Alopecurus saccatus Niall McCarten; V. I. Dains 1986-6-1 03261419 Contra Costa 0.5 mile north of Balfour Road at the Deer Creek Reservori. Comment
  UC2028370  Amaranthus albus Barbara Ertter 1998-6-20 16247 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Briones-Mount Diablo Trail SW of Old Borges Ranch 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
  UC2027978  Amaranthus blitoides Barbara Ertter with Mary Bowerman 1996-11-1 15397 a Contra Costa North base of Mount Diablo, downstream from Mitchell Canyon parking lot. Comment
  UC1602202  Amaranthus californicus Mary L. Bowerman 1935-7-22 3188 Contra Costa s side Meridian Peak; Mount Diablo, Hidden Pond 518 Comment
  JEPS111588  Amaranthus retroflexus D. G. Kelch 2004-6-19 04 .286 Contra Costa Crockett - Edwards Canyon Edwards Creek staging area near barn. 24 Comment
  UC1789207  Amaryllis belladonna Barbara Ertter 2002-8-24 18029 Contra Costa NE corner of Mount Diablo State park, along upper bridle path S of Mount Diablo Mine property, apparent site of old homestead (only rocked terraces left) 274 Comment
  SEINET11910975  Amelanchier alnifolia W. Knight, Knight, I. 1983-1 4741 Contra Costa Tilden Botanic Garden, Berkeley Comment
  CAS-BOT-BC222229  Amsinckia Alice Eastwood; John Thomas Howell 1936-4-19 2141 Contra Costa Somersville Comment
  UC1094074  Amsinckia eastwoodiae Francia Chisaki 1952-3-13 201 Contra Costa 0.25 mi s of Hwy 50 on Mountain House Road Comment
  UC1191046  Amsinckia intermedia R. Bacigalupi and Francia Chisaki 1957-3-27 912 Contra Costa 0.1 mi nw of crossing with Empire Avenue (field along Neroly Road) 24 Comment
  UC615270  Amsinckia intermedia Beryl O. Schreiber 1932-3-27 130 Contra Costa near Mountain House Comment
  RSA201409  Amsinckia intermedia J. T. Howell 1933-5-14 11225 Contra Costa St. Mary s College Comment
  RSA31867  Amsinckia intermedia A. A. Heller 1938-4-9 15014 Contra Costa In an orchard near Walnut Creek. Comment
  UC762762  Amsinckia intermedia R. F. Hoover 1938-4-20 3179 Contra Costa between Resevoir and San Pablo Comment
  CAS-BOT-BC222458  Amsinckia lunaris R. F. Hoover 1939-4-24 4058 Contra Costa Lower end of San Pablo Reservoir Comment
  CAS-BOT-BC222464  Amsinckia lunaris Joseph P. Tracy 1934-4-30 13196 Contra Costa Near Lafayette 152 Comment
  UC24601 Image available Amsinckia lycopsoides J. Burtt Davy 1895-4-7 887 Contra Costa Antioch; ; Antioch, Contra Costa Co. Comment
  UC1178247  Amsinckia lycopsoides Francia Chisaki, R. Bacigalupi 1957-3-27 910 Contra Costa 0.75 mi w of Antioch (along Somersville road between Borden Highway and Southern Pacific Railway) 19 Comment
  UC1178245  Amsinckia menziesii var. menziesii Francia Chisaki and R. Bacigalupi 1957-3-27 911 Contra Costa 1.5 mi e of Antioch City limits (just e of Kaiser Gypsum Plant along Wilbur Avenue) Comment
  UC1073067  Amsinckia menziesii var. menziesii Helen K. Sharsmith 1954-3-24 4411 Contra Costa canyon back of Nortonville Mines (e of Mount Diablo); Inner South Coast Ranges 304 Comment
  UCSB39447  Amsinckia tessellata 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. 121 Comment
  UC691815  Ancistrocarphus filagineus Mary L. Bowerman 1935-4-17 2834 Contra Costa 2 mi from entrance on West rd (= North Rd), (hillside above serpentine outcrop) Mount Diablo 259 Comment
  UC691814  Ancistrocarphus filagineus Mary L. Bowerman 1936-4-23 3407 Contra Costa flat below, (upper edge 1778 flat) Moses Rock Spring; Mount Diablo Comment
  CAS-BOT-BC400258  Anemopsis californica Miss E. Cannon 1892-6-6 s.n. Contra Costa Marshall Valley, foot of Mt. Diablo Comment
  UC691887  Angelica californica Mary L. Bowerman 1935-3-16 2740 Contra Costa Mount Diablo, e fork of Arroyo del Cerro Arroyo del Cerro; Mount Diablo, Arroyo del Cerro 274 Comment
  UC692563  Angelica californica Mary L. Bowerman 1935-6-21 3149 Contra Costa Mount Diablo, e fork of Arroyo del Cerro Arroyo del Cerro; Mount Diablo, Arroyo del Cerro 274 Comment
  CDA29022  Anthriscus caucalis D. G. Kelch 2006-5-7 6 .161 Contra Costa Carquinez Strait.; Crockett. Upper Edward s 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
  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
  UC1789149  Aphanes occidentalis Barbara Ertter with David Gowen and Mike Park 2004-4-13 18347 Contra Costa Black Diamond Mines Regional Park south of Pittsburg, ca 1 km due east of Sidney Flat headquarters Comment
  UC20822  Apiastrum angustifolium Edw. L. Greene 1892-6-20 Contra Costa Mount Diablo Comment
  UC2046342  Apium graveolens Barbara Ertter July 1999 s.n. Contra Costa Cerrito Creek just east of Pierce Street. Alameda/Contra Costa County line. Comment
  CDA39735  Apocynum cannabinum D. G. Kelch 2004-7-9 4 .306 Contra Costa Carquinez Strait; Alhambra Creek, Martinez, near Muir gravesite, Arroyo del Hambre. Comment
  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
  UC8999  Aquilegia formosa W. H. Brewer 1862-5-23 1156 Contra Costa se area Mount Diablo Comment
Read comments
Nov 28 2009
  POM203649  Aquilegia formosa var. truncata J. T. Howell 1933-5-14 11253 Contra Costa Hills east of St. Mary's college Comment
  UC692480  Aralia californica Mary L. Bowerman 1933-6-21 2330 Contra Costa Donner Canyon Mt. Diablo, Donner Canyon 243 Comment
  CHSC24747  Arbutus menziesii G. Strang 1976-4-17 14 Contra Costa Pinehurst road 3.5 mi NW of Canyon School on SE facing bank. 152 Comment
  UC571094  Arbutus menziesii H. L. Mason 1924-11-23 1160 Contra Costa Cashion Canyon Comment
  UC1795671  Arceuthobium campylopodum Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa 1995-10-22 14533 Contra Costa Three Springs Trail on northeast side of Mt. Diablo, woods above ranch. 365 Comment
  UC2028013  Arceuthobium campylopodum Barbara Ertter 1997-11-1 15877 Contra Costa South side Mount Diablo, Knobcone Point Road east of junction with Black Hawk Ridge Road. Comment
  UC615582  Arceuthobium campylopodum Beryl O. Schreiber 1933-10-5 937 Contra Costa rd to Mt Diablo Comment
  UC1332419  Arctostaphylos Edward Lee 1935-12-28 1704 Contra Costa sw-facing gulch on w end of ridge Concord Quadrangle, Las Trampas Ridge 426 Comment
  UC1509579  Arctostaphylos Stephen W. Edwards 1984-2-20 SW- 84 -1 Contra Costa w flank of ridge e Olinda Drive (nw of intersection of San Pablo Dam Rd and Castro Ranch Rd) Comment
  RSA29193  Arctostaphylos andersonii var. pallida Joseph A. Ewan 1934-1-7 8162 Contra Costa Head of San Leandro Creek above Oakland. Comment
  CAS-BOT-BC24111  Arctostaphylos auriculata Walter Knight; Irja Knight 1968-2-19 2276 Contra Costa Sandmine ravine in Somersville Comment
  CAS-BOT-BC24116  Arctostaphylos auriculata Mary L. Bowerman 1935-3-24 2750 Contra Costa Lime Ridge, west face, between two major cuts of the Cowell Cement Company. Comment
  JEPS98842  Arctostaphylos auriculata John S. Bryant 1967-3-19 Contra Costa Nortonville, 1 mi hike from Gianochio Bros. gate, old coal mining area at upper end of canyon Comment
  RSA164647  Arctostaphylos auriculata Percy C. Everett 1963-11-19 24549 Contra Costa Mt Diablo. 457 Comment
  RSA44371  Arctostaphylos auriculata L. S. Rose 1949-3-6 49004 Contra Costa Mt. Diablo, above Rock City. 518 Comment
  RSA622484  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27596 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments
Jan 30 2013
  SD69999  Arctostaphylos auriculata Darley F. Howe 1968-5-21 4519 Contra Costa Mount Diablo. Comment
  UC1200411  Arctostaphylos auriculata Edward Lee 1936-1-12 1714 Contra Costa w-facing slope immediately s Nortonville Comment
  UC1309702  Arctostaphylos auriculata H. A. Jensen 1938-10-27 450 Contra Costa head of Curry Canyon Mt. Diablo 518 Comment
  UC1980319  Arctostaphylos auriculata Barbara Ertter with David Gowen 2012-2-28 20932 Contra Costa ridge circled by lower (south) end of Whipsnake Loop; Contra Costa Water District land west of Los Vaqueros Reservoir; southeast of Morgan Territory Regional Preserve Comment
  UC549567  Arctostaphylos auriculata J. E. Adams 1934-3-19 678 Contra Costa Mt. Diablo Comment
  UC692228  Arctostaphylos auriculata Mary L. Bowerman 1931-3-1 536 Contra Costa e meridian (w edge of chaparral); Mount Diablo, Inner Black Hills Comment
  UC692479  Arctostaphylos auriculata Mary L. Bowerman 1933-3-25 1773 Contra Costa top Pine Canyon Ridge (s-facing slope between the two forks); Mount Diablo, Emmons Canyon (off Stone Valley) Comment
  UC692484  Arctostaphylos auriculata Mary L. Bowerman 1932-2-13 1086 Contra Costa on ridge between main forks of canyon Mount Diablo; , Alamo Canyon Comment
  UC697791  Arctostaphylos auriculata Mary L. Bowerman 1932-9-5 1547 Contra Costa near firebreak which runs s from large spur (on meridian) heading into Sycamore Canyon; Mount Diablo, Inner Black Hills Comment
  UCD50259  Arctostaphylos auriculata H. A. Stout; T. C. Wainwright 1980-3-27 Contra Costa Mallory Ranch, ca. 1 mile east of Morgan Territory Road. 609 Comment
  UCD50263  Arctostaphylos auriculata Roman Gankin 1968-11-14 1310 Contra Costa Ca. 300 yds. above the road at Somersville. Comment
  CDA29577  Arctostaphylos crustacea D. G. Kelch, Suzanne Latham, Matt Beyers 2009-6-3 9 .333 Contra Costa East Bay.; El Sobrante Ridge at end of Silver Belt Dr. on Miocene chert outcrop. Comment
  JEPS81633  Arctostaphylos glandulosa subsp. glandulosa Roger Raiche 1982-1-1 20043 Contra Costa near Grizzly Peak; Claremont Canyon Comment
  UC1120326  Arctostaphylos glandulosa subsp. glandulosa H. A. Jensen 1938-10-27 454 Contra Costa head of Sycamore Creek Mount Diablo Quadrangle Comment
  CAS-BOT-BC24656  Arctostaphylos glauca Mary L. Bowerman 1933-3-11 1748 Contra Costa Mount Diablo, Fossil Ridge, outer s. face: In gully nw. of South Gate. Comment
  RSA164645  Arctostaphylos glauca P. C. Everett 1963-11-19 24551 Contra Costa Juniper Camp, Mt. Diablo. Comment
  UC692233  Arctostaphylos glauca Mary L. Bowerman 1933-9-30 2450 Contra Costa e-facing slope of gully (where relatively narrow) below chaparral Mount Diablo Comment
  UC692498  Arctostaphylos glauca Mary L. Bowerman 1931-11-21 1068 Contra Costa near canyon bottom and Bilharan Mount Diablo, Donner Canyon Comment
  SEINET11989152  Arctostaphylos glauca B. A. Stein 1981-1 461 Contra Costa Mt. Diablo State Park, Juniper Camp 884 Comment
  UC2028040  Arctostaphylos glauca Barbara Ertter 1998-3-7 15929 Contra Costa Southwest side of Mount Diablo, west-most knoll on Fossil Ridge, at end of fire road. Comment
  RSA632813  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27589 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  RSA632818  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27585 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  RSA632821  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27588 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  SD103747  Arctostaphylos manzanita Walter Knight, Irja Knight 1979-5-31 3376 Contra Costa Morgan Territory Regional Land Bank Comment
Read comments
Jul 12 2011
  CAS-BOT-BC38881  Arctostaphylos manzanita subsp. laevigata J. T. Howell 1926-3-7 1665 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC38924  Arctostaphylos manzanita subsp. laevigata Alice Eastwood 1922-5-17 11085 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
  RSA140022  Arctostaphylos manzanita subsp. laevigata H. A. Jensen 1938-10-27 451 Contra Costa Head of Curry Canyon 518 Comment
  UC1389137  Arctostaphylos manzanita subsp. laevigata H. A. Jensen 1938-10-27 452 Contra Costa head of Curry Canyon Mt. Diablo Quadrangle 518 Comment
  UC549604  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-10-6 675 Contra Costa Mt. Diablo Comment
  UC692514  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1933-3-25 1769 Contra Costa n face of canyon near top of ridge ((approached up Diablo Stock Farm Canyon, better known as Emmons Canyon)); Mount Diablo, Pine Canyon Comment
  UC692515  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1931-9-20 1043 Contra Costa little above road Mount Diablo, Fossil (Rock City) Ridge Comment
  UCD51727  Arctostaphylos manzanita subsp. laevigata R. C. Wilson 1935-2-26 112 Contra Costa 3/4 mile southwest of Somersville. 411 Comment
  UC2027944  Arctostaphylos manzanita subsp. laevigata Barbara Ertter 1997-9-7 15797 Contra Costa North side Mount Diablo, Donner Canyon, Middle Trail below Falls Trail junction. Comment
  UC2029140  Arctostaphylos manzanita subsp. laevigata Barbara Ertter with Alan Prather 2003-6-7 18197 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, oak scrub along Valley View Trail in NE corner of park. Comment
  CAS-BOT-BC24383  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1932-9-5 1545 Contra Costa Mount Diablo. On meridian, which heads into Sycamore canyon: crest of ridge. Comment
  CAS-BOT-BC24388  Arctostaphylos manzanita subsp. manzanita Walter Knight; Irja Knight 1968-1-22 2274 Contra Costa In El Sobrante on Skyline Drive. 76 Comment
  CAS-BOT-BC24392  Arctostaphylos manzanita subsp. manzanita Walter Knight 1979-5-31 3376 Contra Costa Morgan Territory Regional Land Bank. Comment
  CAS-BOT-BC24400  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1933-3-25 1765 Contra Costa Mt. Diablo. Diablo Stock Farm (Stone Valley) Canyon, w. fork: toward top of s. face. Also shrubs on n. face of Pine Comment
  POM300729  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1932-1-23 1076 Contra Costa Sycamore Canyon, east fork: East edge of chaparral near canyon bottom. Comment
  SBBG114892  Arctostaphylos pallida C. Bornstein 1999-3-20 Contra Costa Sobrante Ridge Regional Preserve 243 Comment
  UC1142931  Arctostaphylos pallida Beryl O. Schreiber 1938-9-18 2548 Contra Costa 0.5 mi ssw Round Top 335 Comment
  UC723808  Arctostaphylos pallida Joseph Andorfer Ewan 1934-1-7 8162 Contra Costa above Oakland (head of creek, along ridge); San Leandro Creek Comment
  JEPS48825  Arctostaphylos tomentosa subsp. crustacea H. M. Wheeler 1944-1-16 27508 Contra Costa Moraga Ridge Oakland Hills Comment
  JEPS48827  Arctostaphylos tomentosa subsp. crustacea W. L. Jepson 1944-10-27 27552 Contra Costa at Stake 3 Moraga Ridge (e side of trail) Comment
  POM131600  Arctostaphylos tomentosa subsp. crustacea Jos Burtt Davy 1897-1 10651 Contra Costa Moraga Valley. Comment
  UC1120128  Arctostaphylos tomentosa subsp. crustacea Beryl Schreiber 1938-9-18 2549 Contra Costa 0.5 mi ssw Round Top; Concord Quadrangle 335 Comment
  UC549464  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 629 Contra Costa Moraga Ridge Comment
  UC549465  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 628 Contra Costa Moraga Ridge Comment
  UC549470  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 623 Contra Costa Moraga Ridge Comment
  UC549475  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-19 680 Contra Costa Rock City Mount Diablo Comment
  UCR58384  Arctostaphylos tomentosa subsp. crustacea Walter Knight 1980-3-6 s.n. Contra Costa Redwood Regional Park; East Ridge Trail 396 Comment
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Aug 10 2011
  JEPS81964  Argyranthemum foeniculaceum Rimo Bacigalupi and L. R. Heckard 1965-5-11 9070 Contra Costa on strand at n end Brooks Island (sw of Richmond, in San Francisco Bay); San Francisco Bay, n end of Brooks Island Comment
  JEPS75532  Aristolochia californica P. F. Yorks 1974-2-10 109 Contra Costa n of Briones Reservoir (1.6 km s of Bear Creek Road on Hampton Road in Hampton Road Natural Reserve); Hampton Road Natural Reserve Comment
  HSC3262  Aristolochia californica Greg Bos 1963-3-9 28 Contra Costa Pinole Valley Rd., SE of Pinole 61 Comment
  UC2028262  Arnica discoidea Barbara Ertter 1999-6-12 16718 Contra Costa Head of West Branch Alamo Creek on south flank of Mount Diablo, spur road to powerline south from Knobcone Point Road at park boundary. Comment
  CAS-BOT-BC84954  Artemisia californica Mary L. Bowerman 1931-11-21 1069 Contra Costa Mount Diablo, donner Canyon, east flank. Comment
  JEPS100118  Artemisia californica A. Langston 2003-9-16 AL 90 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1119320  Artemisia californica H. A. Jensen 1934-8-19 382 Contra Costa 1 mi nw North Peak; Mt. Diablo Quadrangle Comment
  UC697130  Artemisia californica Mary L. Bowerman 1931-11-21 1069 Contra Costa e flank of Donner Canyon; Mount Diablo Comment
  SEINET14199582 Image available Artemisia californica W. L. Jepson 1898-10-14 s.n. Contra Costa Berkeley, Berkeley Hills Comment
  UC1584696  Artemisia douglasiana Jerry Powell 1990-8-29 1591 Contra Costa Antioch National Wildlife Refuge Comment
  UC630418  Artemisia douglasiana Paule Guiguet and Annetta Carter 1939-8-13 1451 Contra Costa se of Clayton; Mount Diablo drainage, Donner Creek 137 Comment
  CAS-BOT-BC90295  Artemisia douglasiana John Thomas Howell 1925-9-19 1467 Contra Costa East side of Moraga Ridge near south end, Oakland Hills Comment
  CAS-BOT-BC90297  Artemisia douglasiana Vincent Jones 1920-8-20 s.n. Contra Costa Vallejo Comment
  UC1051127  Arum italicum N. Floy Bracelin 1944-9-24 2585 Contra Costa the Garden of Anson and Anita Blake Berkeley Comment
  UCD137837  Asarum caudatum Richard W. Neil 1941-3-24 4 Contra Costa Redwood Park, Redwood Canyon. 182 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
  UC22951  Asclepias californica State Survey 1890-1 1123 Contra Costa region Mt. Diablo Comment
  CHSC23359  Asclepias fascicularis Willis Ball 1975-6-1 533 Contra Costa Contra Loma Regional Park. In area #1 ca. 75 yds sw of main restroom facility at s end of reservoir. 45 Comment
  JEPS100125  Asclepias fascicularis A. Langston 2003-7-24 AL 69 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1123545  Asclepias fascicularis H. S. Yates 1934-9-2 4067 Contra Costa 1 mi sw Mt. Diablo; Mt. Diablo Quadrangle Comment
  UCR16092  Asclepias fascicularis 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
  SD241650  Asphodelus fistulosus Barbara Ertter, Tony Morosco 2000-4-12 16959 Contra Costa Vasco Road 0.4 mile north of Tesla Road southeast of Livermore; roadside. Comment
  RSA417743  Aster radulinus M. B. Dunkle 1931-7-18 2532 Contra Costa Strawberry Canyon, Berkeley 152 Comment
  UC1128839  Astragalus asymmetricus G. T. Nordstrom 1937-10-28 1404 Contra Costa 1.4 mi nne Somersville; Mt. Diablo Quad., nne of Somersville Comment
  UC13388  Astragalus asymmetricus F. T. Bioletti 1892-1 Contra Costa Byron Comment
  UCD104630  Astragalus asymmetricus C. A. Hooper 1936-8-5 s.n. Contra Costa Pittsburg. Comment
  UC13432  Astragalus gambelianus State Survey 1862-5-12 1071 Contra Costa Mt. Diablo Comment
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Jan 20 2011
  UCSB3011  Astragalus gambelianus Constance, Lincoln; Sharsmith, Carl; Reed, Howard 1940-4-27 Contra Costa Pine Canyon, base of Mount Diablo 304 Comment
  UC673344  Athysanus pusillus H. L. Mason 1929-3-29 5117 Contra Costa Mount Diablo 1066 Comment
  CAS-BOT-BC16333  Athysanus unilateralis Alice Eastwood 1914-3-14 3766 Contra Costa Byron Springs. Comment
  CDA9508  Atriplex argentea D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .235 Contra Costa CA Delta; Along Clifton Court Near Clifton Court Forebay. Comment
  CAS-BOT-BC168536  Atriplex coronata J. W. Congdon 1889-6-22 s.n. Contra Costa Byron Springs Comment
  CAS-BOT-BC168540  Atriplex coronata John Thomas Howell 1930-9-28 5503 Contra Costa 5.4 miles from Byron on Marsh Creek Road Comment
  CAS-BOT-BC168541  Atriplex coronata R. E. Frenkel 1964-7-10 648 Contra Costa On Balfour Road, 0.2 miles west of Bixler Road 6 Comment
  LA204675  Atriplex coronata John Thomas Howell; 1930-9-28 5503 Contra Costa 5.4 miles from Byron on Marsh Creek Road Comment
  CDA9502  Atriplex fruticulosa D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .229 Contra Costa Byron Airport. Comment
  UC70181  Atriplex fruticulosa J. Burtt Davy May 1898 Contra Costa region Mount Diablo (Livermore Pass); region of Mount Diablo, Livermore Pass Comment
  JEPS59616  Atriplex joaquinana W. L. Jepson May 1891 Contra Costa Mt. Diablo region Comment
  UC1601683  Atriplex joaquinana Katharine Brandegee 1907-5-3 Contra Costa between Antioch Marsh Creek; between Antioch and Marsh Creek Comment
  UCD78167  Atriplex joaquinana Robert E. Preston 2008-4-24 2619 Contra Costa 4.8 mi SSE of Byron, ca. 300 ft E of Vasco Rd 12 Comment
  JEPS68929  Atriplex prostrata Edward Lee 1934-9-30 1225 Contra Costa Moraga; just se of station Comment
  UC2042867  Atriplex prostrata Barbara Ertter, B. Olson, D. Lake, L. Hosley and A. Youngson 1991-10-20 10871 Contra Costa Dow Wetland Preserve, just W of Antioch. Comment
  UCD158699  Atriplex prostrata James A. Neilson Jr. 1972-10-22 3509 Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 1 Comment
  POM183312  Atriplex subspicata J. T. Howell 1931-10-31 8163 Contra Costa Bay Point. Comment
  JEPS111803  Atriplex triangularis D. G. Kelch 2004-5-7 04 .194 Contra Costa Ca ada del Cierbo Ca ada del Cierbo 40 Comment
  CAS-BOT-BC146023  Avena barbata Mary L. Bowerman 1931-5-13 845 Contra Costa Mount Diablo. Pine Canyon floor one mile above the sulphur spring. Comment
  UC691225  Avena barbata Mary L. Bowerman 1932-4-16 1355 Contra Costa n Eagle Point; Mount Diablo, Eagle Point Ridge 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
  CAS-BOT-BC145879  Avena fatua Beecher Crampton 1956-5-14 3418 Contra Costa Cemetery, 0.5 mile northwest of Martinez, road to Crocket. Comment
  SEINET8718193 Image available Avena sativa Laura Zeller 1965-1 81 Contra Costa Just E of the University of California Botanical Garden. 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
  CAS-BOT-BC98766  Baccharis douglasii Walter Knight; I. Knight; S. Rae; B. Doyle; J. T. Howell; E. McClintock 1978-9-5 3209 Contra Costa Browns Island, near Sandy Knoll Comment
  CDA10375  Baccharis glutinosa D. G. Kelch, A. G. Murdock 2004-9-2 4 .337 Contra Costa Carquinez Strait Region; Pacheco Marsh. Marsh east of Martinez and I-680 and east of lone tree Marsh. Comment
  UC697204  Baccharis glutinosa Mary L. Bowerman 1942-10-4 3852 Contra Costa Mount Diablo, Russelman Park Road 289 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
  UCD159504  Baccharis pilularis D. S. Park 2010-9-11 252 Contra Costa Waterfront Rd. Growing along roadside. Disturbed. 5 Comment
  CHSC23340  Baccharis salicifolia Willis Ball 1975-3-2 460 Contra Costa Contra Loma Regional Park. In area #4. On beach on E side of lake ca. 175 yds S of dam. 30 Comment
  SEINET7239588 Image available Baccharis salicifolia Chesnut, Drew 1889-4-16 s.n. Contra Costa Clayton Comment
  UC202943  Baccharis salicifolia subsp. salicifolia Chesnut and Drew 1889-4-17 Contra Costa Clayton Comment
  UC651295  Baccharis salicifolia subsp. salicifolia Ira L. Wiggins 1930-4-18 4600 Contra Costa Levee Parks, near ferry Jersey Island Comment
  PASA2177  Baeria chrysostoma Annetta Carter 1929-3-31 Contra Costa Near Clayton Comment
  SEINET7881864 Image available Baeria fremontii Herbert L. Mason 1952-1 14260 Contra Costa 3.5 miles south of Byron Comment
  CDA23064  Barbarea orthoceras D. G. Kelch, D. A. Weinstein 2008-4-25 8 .083 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
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Jan 7 2016
  UC1818940  Barbarea orthoceras Barbara Ertter, Mary Bowerman 1994-6-19 12843 Contra Costa Mt. Diablo State Park east of Walnut Creek; Muir Picnic Area on Summit Road, ca. 3300'; roadside cut thru chaparral. Comment
  UC691253  Barbarea orthoceras Mary L. Bowerman 1933-2-4 1688 Contra Costa Flat east of Meridian-North Peak divide. 822 Comment
  CDA34211  Bellardia trixago D. G. Kelch 2011-5-28 11 .541 Contra Costa Carquinez Strait Region.; W of Martinez. N of end of Hillside Pl. Comment
  JEPS100152  Bellardia trixago G. Smick 2003-5-6 GAS 171 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS108533  Bellardia trixago Lisa Schultheis with Kevin Hintsa 1995-4-25 70 -95 Contra Costa Mount Diablo. Along connector trail between Pine Canyon and the Brioines/Mount Diablo Trail Comment
  UCD35137  Bellardia trixago Beecher Crampton 1949-6-5 468 Contra Costa near Muir. Comment
  UCSC000661  Bellardia trixago Mrs. G. Garlichs 1938-5-2 s.n. Contra Costa Wine Haven, Point Richmond Comment
  CAS-BOT-BC75786  Berberis pinnata H. E. McMinn 1923-3-17 897 Contra Costa Sycamore Canyon - 2 miles from Black Hawk Ranch - left canyon. Comment
  JEPS111807  Beta vulgaris D. G. Kelch 2003-8-13 03 .97 Contra Costa Martinez Marsh 1 Comment
  NY31018  Blennosperma californicum L. S. Rose 1941-3-13 41035 Contra Costa 3 miles south of Byron 7.6 Comment
  SEINET3386108 Image available Blennosperma californicum Lewis S. Rose 1933-3-10 33008 Contra Costa Marsh creek, open hillsides Comment
  JEPS68966  Blennosperma nanum Edward Lee 1935-3-10 1299 Contra Costa Nortonville South watershed of Kirker Creek Comment
  POM203483  Blennosperma nanum L. S. Rose 1933-3-10 33008 Contra Costa Marsh Creek. Comment
  RSA31357  Blennosperma nanum Joseph A. Ewan 1935-3-10 9154 Contra Costa In hills above Nortonville. Comment
  CAS-BOT-BC100699  Blennosperma nanum var. nanum Brandegee s.n. Contra Costa [Antiock] Antioch Comment
  JEPS18259  Blennosperma nanum var. nanum Peter H. Raven with Mason, Stone, Ornduff, Kuijt 1957-4-4 10588 Contra Costa 3.3 mi s Byron Comment
  UC1543131  Blennosperma nanum var. nanum Donald G. Nelson 1937-3-30 459 Contra Costa about halfway between Clayton and Byron, Marsh Creek Highway Clayton Comment
  UC614973  Blennosperma nanum var. nanum Beryl O. Schreiber 1932-3-27 131 Contra Costa Mountain House Comment
  UC691494  Blennosperma nanum var. nanum Mary L. Bowerman 1932-3-12 1107 Contra Costa field a little e of, s of Diablo Bret Harte Memomorial Comment
  JEPS18818  Blepharizonia plumosa R. F. Hoover 1937-9-2 2708 Contra Costa Walnut Creek Comment
  JEPS19359  Blepharizonia plumosa H. M. Hall 1916-8-17 10275 Contra Costa Los Medanos Region of San Francisco Bay, Suisun Bay Comment
  SEINET10570457  Bloomeria aurea William H. Brewer 1862-6-19 Brewer 1291 Contra Costa Geological Survey of California, 1860-67. Pacheco Pass, near Camp 77. Comment
  UC691073  Boechera breweri subsp. breweri Mary L. Bowerman 1932-3-27 1142 Contra Costa Mitchell Rock Mount Diablo Comment
  POM32378  Boisduvalia glabella Katherine Brandegee 1905-6-16 s.n. Contra Costa Antioch Comment
  JEPS111893  Bolboschoenus maritimus D. G. Kelch 2004-6-6 04 .230 Contra Costa Martinez - Train Station In large fill area North of Frontage Road. In marsh East of Martinez and I-680 2 Comment
  CAS-BOT-BC31391  Bolboschoenus robustus J. W. Congdon 1893-7-29 s.n. Contra Costa Martinez Comment
  UC2028510  Bolboschoenus robustus Barbara Ertter with Tony Morosco 1998-9-18 16432 Contra Costa West slope Lime Ridge Open Space northwest of Mount Diablo, just southeast of Ygnacio Valley Road, southwest of sand quarry Comment
  CAS-BOT-BC95322  Bowlesia incana James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  POM300701  Bowlesia incana Mary L. Bowerman 1935-5-1 2937 Contra Costa North Road 2 miles from entrance, across the creek from the road, Mount Diablo. 183 Comment
  UC34624  Brickellia californica V. King Chesnut 1887-9-11 Contra Costa Mt. Diablo Comment
  JEPS99494  Brickellia californica Mary Bowerman 1994-10-30 Contra Costa Mount Diablo, Hetherington Loop, streamlet just below upper stream crossing. Comment
  CDA28863  Briza minor D. G. Kelch 2006-5-5 6 .134 Contra Costa East Bay; Wildcat Canyon Regional Park. Near Wildcat Canyon Road terminus. Comment
  UC1613947  Brodiaea elegans subsp. elegans Charles M. Belshaw 1935-6-24 1028 Contra Costa Sobrante Hills Comment
  UCD57815  Bromus berteroanus Beecher Crampton 1956-5-14 3415 Contra Costa 1/2 mile west of Martinez. Comment
  SEINET7297525 Image available Bromus berteroanus Beecher Crampton 1956-1 3415 Contra Costa Oak woodland, foothills, 1/2 mile west of Martinez Comment
  SEINET7106148  Bromus carinatus Beecher Crampton 1960-3-29 5481 Contra Costa City of El Cerrito, corner of Carlon and Lassen Boulevards.; 0 Comment
  SEINET10520207  Bromus carinatus Alan A. Beetle 1942-3-22 Beetle 2931 Contra Costa Brooks Island, San Francisco Bay, near Richmond. Comment
  UC1103283  Bromus carinatus var. carinatus J. P. Tracy 1900-3-24 614 Contra Costa San Francisco Bay Region, Point Richmond, Rail Road Track Point Richmond; San Francisco Bay Region, Point Richmond 3 Comment
  UC606737  Bromus carinatus var. carinatus Edward Lee 1936-4-19 1958 Contra Costa San Francisco Bay, Red Rock Red Rock; San Francisco Bay, Red Rock Comment
  UC2028410  Bromus carinatus var. carinatus Barbara Ertter 1998-4-4 15969 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, Fossil Hill, middlle of NE-facing slope Comment
  UC1948969  Bromus diandrus William J. Ferlatte, L. Maynard Moe 1970-4-27 1220 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC606741  Bromus diandrus Edward Lee 1936-4-19 1963 Contra Costa San Francisco Bay, ne corner of Red Rock Red Rock; San Francisco Bay, Red Rock Comment
  CAS-BOT-BC156064  Bromus diandrus Mary L. Bowerman 1935-4-19 2876 Contra Costa Mount Diablo. Road about 7miles from North Gate, ridge west of the power poles, above the road junction. 701 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
  POM363884  Bromus hordeaceus Anstruther Davidson 1930-07 3244 Contra Costa Mt. Diablo. Comment
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Mar 6 2011
  UC697134  Bromus hordeaceus Mary L. Bowerman 1931-4-4 644 Contra Costa Mount Diablo, West Raod, about 1 mi from entrance Mount Diablo; , West Raod Comment
  UC697135  Bromus hordeaceus Mary L. Bowerman 1931-5-13 839 a Contra Costa Mount Diablo, Pine Canyon, 1 mi above spring Pine Canyon; Mount Diablo, Pine Canyon Comment
  UCD58674  Bromus hordeaceus L. S. Smith 1914-5-9 UCX 283 Contra Costa Mt. Diablo. West slope. Comment
  POM301030  Bromus madritensis Mary L. Bowerman 1933-5-8 2004 Contra Costa Fossil Ridge, south face, not far from but out of sight of South Entrance 290 Comment
  UCD36914  Bromus madritensis Beecher Crampton 1956-5-14 3385 Contra Costa 6.7 miles southwest of city of Antioch, along ridge between old coal mining towns of Somersville and Nortonville. Comment
  UCD58988  Bromus madritensis Walter Knight 1967-7-9 s.n. Contra Costa Botanical Garden, Tilden Park. Comment
  UC677561  Bromus madritensis subsp. madritensis P. F. Knowles 1942-1 B 142 Contra Costa Briones Hills Comment
  UC692333  Bromus madritensis subsp. madritensis Mary L. Bowerman 1935-5-22 3037 Contra Costa w of Twin Peaks (n end of Eagle Point Ridge, Mount Diablo); Mount Diablo, Eagle Point Ridge 304 Comment
  UC2028491  Bromus madritensis subsp. madritensis Barbara Ertter 1998-5-3 16067 Contra Costa SE end of Wall Point Road on southwest flank of Mount Diablo Comment
  UC692342  Bromus madritensis subsp. rubens Mary L. Bowerman 1931-4-18 731 Contra Costa Mount Diablo, Sycamore Canyon Sycamore Canyon; Mount Diablo, Sycamore Canyon 365 Comment
  SEINET3923058  Bromus rigidus Beecher Crampton 1956-5-14 3378 Contra Costa Contra Costa County, 4.6 miles south of the city of Antioch, on Empire Mine Drive, at head of Horse Valley.; 0 Comment
  UCD59573  Bromus rubens P. B. Kennedy 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  UC2028467  Bromus tectorum Barbara Ertter 1997-8-24 15775 Contra Costa Mount Diablo, around summit Comment
  CAS-BOT-BC185034  Calamagrostis rubescens Virginia E. Long 1933-6-14 222 a Contra Costa Mount Diablo. Inner Black Hills. 563 Comment
  UC692311  Calandrinia breweri Mary L. Bowerman 1933-5-3 1971 Contra Costa due s Meridian Peak summit; Mount Diablo 731 Comment
  UC765774  Calandrinia breweri R. F. Hoover 1939-4-13 4019 Contra Costa head west branch Markley Canyon Comment
  CAS-BOT-BC438373  Calandrinia ciliata Mary L. Bowerman 1939-5-2 3741 Contra Costa Mount Diablo. By road to Barbecue Terrace (off South Road) 563 Comment
  UC1300961  Calandrinia ciliata Helen K. Sharsmith 1962-4-7 4920 Contra Costa Appian Way near El Sobrante 121 Comment
  CAS-BOT-BC438365  Calandrinia ciliata unspecified No date on label s.n. Contra Costa Antioch Comment
  CHSC23336  Calandrinia ciliata var. menziesii Willis Ball 1975-3-2 473 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 large hill. 53 Comment
  JEPS108321  Calendula arvensis David Gowen 2005-2-23 167 Contra Costa Mt. Diablo State Park. Grassy slope just above Pioneer Horse Camp. Comment
  UC3366  Calochortus albus W. H. Brewer 1862-5-24 1157 Contra Costa se of Monte Diablo Comment
  UC2028294  Calochortus argillosus Barbara Ertter, Dan Norris 1998-6-18 16219 Contra Costa west of Rock City area on south side of Mount Diablo, saddle on W Fossil Ridge Trail. Comment
  UC2028368  Calochortus argillosus Barbara Ertter 1998-6-20 16249 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Gypsy Ridge SW of Old Borges Ranch Comment
  SEINET5192548  Calochortus luteus Unknown 1995-6-15 03 Contra Costa Mt.Diablo State Park; near entrance Comment
  JEPS122394  Calochortus pulchellus Nisrine Machaka-Houri 2014-5-17 NG 14 Contra Costa Black Point Trail, Mitchell Canyon, Mt. Diablo State Park. Comment
  POM153228A  Calochortus pulchellus C. L. Hitchcock 1928-6-5 14 Contra Costa Between Port Costa and Martinez. 18 Comment
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Feb 14 2017
  CAS-BOT-BC132534  Calochortus umbellatus John Thomas Howell 1933-5-14 11261 Contra Costa Hills east of St. Mary's College Comment
  UC1779714  Calochortus umbellatus Rudolf Schmid 1997-4-4 1997 -1 Contra Costa Hillside Natural Area, El Cerrito; SW of Kent Dr. - Regency Ct. entrance, N side of juncttion of the two main fire roads. 144 Comment
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Apr 2 2012
  JEPS122392  Calochortus venustus Nisrine Machaka-Houri with Gracie Benson-Martin 2014-5-17 NG 12 Contra Costa Golden Lily Trail, Mitchell Canyon, Mt. Diablo State Park. Comment
  CAS-BOT-BC418628  Calystegia R. K. Brummitt; B. Ertter 2012-6-17 22061 Contra Costa Berkeley Hills, Tilden Park, Seaview Trail north of Vollmer Peak Comment
  HSC104417  Calystegia David Gowen 2005-5-14 333 Contra Costa Mt. Diablo State Park; north slope below summit of Oyster Ridge. Comment
  RSA760670  Calystegia purpurata William J. Ferlatte, L. Maynard Moe 1970-4-27 1236 Contra Costa San Francisco Bay, Red Rock Island. Comment
  JEPS111812  Calystegia purpurata subsp. purpurata A. G. Murdock 2003-6-2 79 Contra Costa Franklin Canyon - McHarry Ranch Rd. West side of road near fire road gate 126 Comment
  SD225764  Calystegia purpurata subsp. purpurata R. K. Brummitt, J Stother & B. Baldwin 1997-5-27 19605 Contra Costa Mt Diablo, W side, Deer Flat Road 800 Comment
  UC23168  Calystegia sepium subsp. binghamiae Jos. Burtt Davy 1900-6-7 6664 Contra Costa near Martinez; near Martinez Comment
  CAS-BOT-BC224745  Calystegia sepium subsp. limnophila R. K. Brummitt; B. Ertter 1998-5-6 19792 Contra Costa Antioch. Sea level Comment
  POM312614  Calystegia sepium subsp. limnophila Malcolm A. Nobs, S. Galen Smith 1949-7-8 941 Contra Costa Otto's Black Bass Resort, 4 miles north of Kingston. Comment
  RSA710249  Calystegia subacaulis R. K. Brummitt, Barbara Ertter, N. A. Brummitt 1998-5-6 19788 Contra Costa Mt. Diablo. NE side, Donner Track. 400 Comment
  UC1197881  Calystegia subacaulis subsp. subacaulis Joseph P. Tracy 1934-4-30 13192 Contra Costa Near Lafayette. 152 Comment
  UC1794983  Calystegia subacaulis subsp. subacaulis R. K. Brummitt and B. Ertter 1998-5-6 19784 Contra Costa Mt. Diablo, NW side, path to Mitchell's Rock 300 Comment
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Aug 3 2013
  UC691849  Calystegia subacaulis subsp. subacaulis Mary L. Bowerman 1931-4-11 709 Contra Costa toward mouth Pine Canyon (Mount Diablo); , Pine Canyon toward mouth Comment
  POM257268  Camissonia campestris subsp. campestris H. L. Mason 1931-4-5 5820 Contra Costa Antioch sandhills Comment
  UC2028347  Camissonia contorta Barbara Ertter 1991-5-5 9780 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, ridge E of Coal Canyon, N-facing slope Comment
  UC20485  Camissoniopsis micrantha W. H. Brewer 1862-5-22 1137 Contra Costa foothills e Mount Diablo 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-BC266437  Campanula exigua Alice Eastwood 1921-6-11 s.n. Contra Costa Mount Diablo summit Comment
  SEINET10972314  Campanula exigua Alice Eastwood 1897-5-31 Eastwood s.n. Contra Costa Mount Diablo Comment
  JEPS83131  Capsella bursa-pastoris R. P. Allen 1935-3-15 113 Contra Costa Pittsburg Comment
  UC1126899  Cardamine californica R. C. Wilson 1935-3-19 142 Contra Costa 1 mi se Wall Pt.; Mt. Diablo Quad. Comment
  UC517996  Cardamine californica John Thomas Howell 1931-3-10 5757 Contra Costa on Livermore Road 7 mi from Clayton (e side Mt. Diablo); e side Mt. Diablo Comment
  UCD114186  Cardamine californica Morris Halperin 1929-4-21 s.n. Contra Costa St. Mary's College campus. Comment
  UCSC000312  Cardamine californica var. californica Bill Knittle 1983-4-13 s.n. Contra Costa Mt. Diablo, Marsh Creek Comment
  POM272920  Cardamine californica var. integrifolia Lyman Benson 1931-3-18 2657 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 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
  CDA8345  Cardamine flexuosa D. G. Kelch, A. G. Murdock 2003-3-21 03 .065-B Contra Costa Carquinez Strait Region; Martinez; West: Ozol Rock and Scenic Drive. Comment
  UC2032817  Cardamine hirsuta Doran, Andrew Scott 2012-3-20 687 Contra Costa North end of Brooks Island along ridge, cleared area northwest of caretakers residence. Comment
  CAS-BOT-BC37863  Cardamine oligosperma Mary L. Bowerman 1932-3-6 1100 Contra Costa Mount Diablo. Sycamore Canyon, east fork. Near trail. Comment
  CDA33553  Cardaria chalepensis Guise/McClure 2010-5-24 PDR# 1645228 Contra Costa Pleasanton; Old School Road. 0 Comment
  CDA935  Cardaria chalepensis D. G. Kelch 2006-5-2 6 .214 Contra Costa Carquinez Strait; Fernandez Ranch; W. Christie Rd. Comment
  CDA40567  Cardaria pubescens V. Guise 2014-5-19 PDR# 070 P06223903 Contra Costa Rodeo; northside of Highway 4, 0.25 mile west of Carbon Way. 0 Comment
  JEPS25275  Cardaria pubescens G. Thomas Robbins 1959-9-13 4162 Contra Costa R.R. right-of-way above salt marsh at n. edge Pinole Comment
  RSA8534  Carduus pycnocephalus J. T. Howell 1933-5-14 11246 Contra Costa Hills east of St. Mary's college Comment
  JEPS97625  Carduus tenuiflorus Annetta M. Carter, Florence Dickson 1939-5-28 1437 Contra Costa El Cerrito. 7 Comment
  CAS-BOT-BC281803  Carduus tenuiflorus David Keck 1941-6-5 5312 Contra Costa Berkeley Hills, Fish Creek Rd, 0.25 mile W of E portal of Broadway Tunnel 335 Comment
  CAS-BOT-BC281806  Carduus tenuiflorus Mary L. Bowerman 1934-6-9 2547 Contra Costa Mount Diablo. South Road, bend by Diablo Trail sign reading 4.4 miles to summit: Roadside 304 Comment
  POM226232  Carduus tenuiflorus J. T. Howell 1933-5-21 11323 Contra Costa San Pablo Comment
  POM300641  Carex barbarae Mary L. Bowerman 1935-9-13 3344 Contra Costa Mount Diablo: Frog Pond, at head of Frog Pond Spring. Comment
  UC2013067  Carex barbarae Barbara Ertter with Lisa Schultheis 1996-9-2 15279 Contra Costa South side Mount Diablo, Sycamore Creek below Sulfur Spring. Comment
  UC691966  Carex densa Mary L. Bowerman 1938-6-14 3682 Contra Costa Rocky Point Spring 701 Comment
  JEPS111897  Carex obnupta D. G. Kelch 2004-7-9 04 .305 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  CAS-BOT-BC119016  Carex pellita Walter Knight 1979-6-15 3382 Contra Costa Straight Slough. Browns Island. Comment
  UC1949083  Carex pendula Barbara Ertter with Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 19797 Contra Costa at upper (south) end of San Pablo Dam Reservoir northwest of Orinda Comment
  UC1795880  Carex praegracilis Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14672 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay; wetlands behind facilities at base of ''D'' road. Comment
  UC1818878  Carex serratodens Barbara Ertter, Kristin Ertter 1995-7-11 14487 Contra Costa Partial shade of willows, mudflat around Pine Pond inlet. Comment
  JEPS25105  Carex subbracteata G. Thomas Robbins 1959-4-18 3984 Contra Costa about 1/2 mi e Pt. San Pablo (overlooking San Pablo Bay); San Pablo Bay, Richmond 7 Comment
  CDA34479  Carex subbracteata D. G. Kelch 2006-3-18 6 .106 Contra Costa 2 km N-NW of Orinda Village. NW of corner of San Pablo Dam Rd & Bear Valley Rd. 0 Comment
  UC1096  Carex tumulicola Jos. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  RSA0027404  Carex tumulicola Barbara Ertter 1999-7-17 16770 Contra Costa Tilden Regional Park, trail to Jewel Lake paralleling Wildcat Creek, through thick woodland growth. Comment
  OBI13975  Carpenteria californica Neil Havlik 1968-5-19 201 Contra Costa Tilden Botanical Garden, Charles Lee Tilden Regional Park, E of Berkeley Comment
  UC26404  Castilleja affinis subsp. affinis W. H. Brewer 1862-5-15 1093 Contra Costa Kirker Pass Comment
  UC691581  Castilleja attenuata Mary L. Bowerman 1933-5-4 1990 Contra Costa Rock City Ridge (= Fossil Ridge); Mount Diablo Comment
  UC1819048  Castilleja attenuata Barbara Ertter, Lisa Schultheis 1995-4-27 14005 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; northwest side of open grassy ridge at end of Arbolado Dr. 121 Comment
  UC2070586  Castilleja exserta Barbara Ertter 2003-3-28 18131 Contra Costa Round Valley Regional Preserve, upper Hardy Canyon. Comment
  UCD32379  Castilleja exserta Beecher Crampton 1950-4-16 514 Contra Costa road from San Pablo to Giant, along RR. Property. 22 Comment
  JEPS16805  Castilleja exserta subsp. exserta Rimo Bacigalupi with G. Thomas Robbins 1955-5-4 4983 Contra Costa 1.25 mi e Antioch (near the San Joaquin River) 9 Comment
  JEPS74806  Castilleja exserta subsp. exserta L. R. Heckard, T. I. Chuang and R. Bacigalupi 1975-5-7 4014 Contra Costa ca 0.5 mi e Pinole (just of of Interstate Hwy 80, along main route of Santa Fe Railroad) Comment
  UC673456  Castilleja exserta subsp. exserta H. L. Mason 1928-3-4 4168 Contra Costa Shell Ridge Comment
  JEPS15165  Castilleja foliolosa R. C. Wilson 1935-3-14 136 Contra Costa Head of Sycamore Creek; Mt. Diablo Quad. 365 Comment
  JEPS75507  Castilleja foliolosa P. F. Yorks 1974-5-19 162 Contra Costa ca 1.6 km s Bear Creek Rd on Hampton Rd in Hampton Road Natural Reserve (n of Briones Reservoir) 180 Comment
  UC64223  Castilleja subinclusa subsp. franciscana H. M. Hall 1901-3-17 Contra Costa Point Richmond; San Francisco Bay Region Comment
  JEPS73300  Castilleja wightii L. R. Heckard 1973-6-6 3421 Contra Costa ravine behind La Moine Park; Richmond 121 Comment
  RSA517383  Castilleja wightii L. R. Heckard 1973-6-6 3421 Contra Costa North-facing slope. Ravine behind La Moine Park (Richmond). 122 Comment
  SEINET10582750  Castilleja wightii Lawrence R. Heckard 1973-6-6 Heckard 3421 Contra Costa Ravine behind La Moine Park (Richmond). 122 Comment
  CAS-BOT-BC41039  Caulanthus flavescens Reed Clark Rollins 1946-3-25 3046 Contra Costa Western slope of Mount Diablo. Comment
  CAS-BOT-BC40515  Caulanthus lasiophyllus W. H. Brewer 1862-4-24 987 Contra Costa Camp 68. Martinez. Comment
  POM300720  Ceanothus cuneatus Mary L. Bowerman 1932-9-3 1531 Contra Costa Muir Area, burn (1931) Mt. Diablo Comment
  UC1071130  Ceanothus cuneatus var. cuneatus R. C. Wilson 1935-2-26 111 Contra Costa 1 mi sw Somersville; Mt. Diablo quad 365 Comment
  UC692591  Ceanothus cuneatus var. cuneatus Mary L. Bowerman 1932-5-1 1406 Contra Costa Oyster Ridge, outer steep face of Alamo Creek, Mount Diablo Comment
  UC692587  Ceanothus oliganthus var. sorediatus Mary L. Bowerman 1931-4-10 746 Contra Costa below Deer Flat (Mitchell Canyon.); Mount Diablo Comment
  CAS-BOT-BC63453  Ceanothus palmeri Mark Boone 1981-2-22 002 Contra Costa Mt. Diablo State Park 10.8 mi. from N. Park Gate. Comment
  CDA29161  Centaurea calcitrapa Deviney 2009-6-1 s.n. Contra Costa Martinez. McEwen Road. 0 Comment
  CAS-BOT-BC277052  Centaurea melitensis Alice Eastwood 1921-4-11 10239 Contra Costa Antioch 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-BC284464  Centaurea solstitialis Walter Knight; Wayne Roderick; Steve Edwards; Bob Doyle 1978-9-19 3249 Contra Costa Browns Island, Alder Point Comment
  UC1178020  Centaurium muehlenbergii Herbert L. Mason 1955-7-14 14637 Contra Costa 0.5 mi e Antioch Bridge Comment
  UC1795817  Centaurium muehlenbergii Barbara Ertter 1994-6-26 12873 Contra Costa South of Point Molate Beach Park in west Richmond north of San Rafael Bridge, Franciscan Formation bluffs, sheltered bank along beach just south of park boundary. Comment
  CDA35663  Centaurium tenuiflorum Vince Guise 2011-8-2 PDR# 1649695 Contra Costa San Ramon; 100 feet north of north end of Claremont Crest Way. 0 Comment
  CAS-BOT-BC288551  Centromadia fitchii Alice Eastwood 1921-4-18 10255 Contra Costa Antioch Comment
  CAS-BOT-BC288550  Centromadia fitchii Wm. F. Herrin 1922-7-4 s.n. Contra Costa Byron Springs Comment
  UC2029029  Centromadia fitchii Barbara Ertter 2002-8-24 18019 Contra Costa Dunn Creek south of Mount Diablo Mine property on NE base of Mount Diablo. Comment
  JEPS118743  Centromadia parryi subsp. congdonii Sarah Lynch 2012-8-1 s. n. Contra Costa Tassajara Valley (south of Danville); west of Camino Tasajara Road and south of Johnston Road Comment
  UC523550  Centromadia parryi subsp. congdonii David D. Keck 1933-11-2 2610 Contra Costa Crow Creek Canyon Road 1/2 mi from turnoff San Ramon Comment
  CAS-BOT-BC288877  Centromadia parryi subsp. congdonii David D. Keck 1933-11-2 2610 Contra Costa San Ramon, Cow Creek Canyon Rd, 0.5 mile from turnoff Comment
  UCD148253  Centromadia pungens Robert E. Preston 2013-6-21 2915 Contra Costa 3.5 mi SW of Byron. 72 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
  UC1178029  Centunculus minimus Herbert L. Mason 1955-7-14 14632 a Contra Costa 1/2 mi e of Antioch Bridge 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
  JEPS111783  Cerastium glomeratum D. G. Kelch 2003-3-21 03 .72 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  UC1948960  Cerastium glomeratum William J. Ferlatte, L. Maynard Moe 1970-4-27 1233 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC579851  Cerastium glomeratum Annetta Carter 1936-4-19 1114 Contra Costa 1 mi. s.w Castro Point (e. side Red Rock); San Francisco Bay, Red Rock Comment
  UC691102  Cercocarpus betuloides var. betuloides Mary L. Bowerman 1936-9-9 3541 Contra Costa Rock City Ridge = Fossil Ridge, w of 1478 (below road) Fossil Ridge; Mount Diablo, , Rock City Ridge Comment
  UC34798  Chaenactis glabriuscula var. glabriuscula W. C. Blasdale 1893-5-13 Contra Costa Antioch Comment
  CAS-BOT-BC66367  Cheilanthes covillei Mary L. Bowerman 1931-5-7 801 Contra Costa North Peak ridge Comment
  JEPS106987  Cheilanthes intertexta J. Greenhouse with Kevin Hintsa 2004-4-5 5086 Contra Costa Mt. Diablo, Fire Interpretive Trail, Devil's Pulpit 1088 Comment
  UC1328153  Chenopodium album Olive Dyer 1936-8-29 4 Contra Costa 1 1/2 mi below San Pablo Ave.; Wildcat Creek Comment
  UC630416  Chenopodium berlandieri Paule Guiget and Annetta Carter 1939-8-13 1453 Contra Costa Treat Ave. se Concord 53 Comment
  JEPS99594  Chenopodium murale Mary Bowerman 1993-10-22 Contra Costa Mount Diablo, Pine Pond. Comment
  CAS-BOT-BC497666  Chlorogalum pomeridianum Mary L. Bowerman 1930-6-5 239 . Contra Costa Mount Diablo: North Road, 2.9 mi from North Gate 243 Comment
  CAS-BOT-BC252680  Chorizanthe membranacea Mary L. Bowerman 1938-5-28 3636 Contra Costa North Road 4.7 miles from North Gate, Mount Diablo 411 Comment
  UC1136020  Chorizanthe membranacea C. M. Belshaw 1936-5-8 2057 Contra Costa se slope Mount Diablo; Mount Diablo Quad. Comment
  UC77552  Chorizanthe membranacea Brandegee April, 1889 Contra Costa 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
  UCD110102  Chrysolepis chrysophylla var. minor J. M. Tucker 1941-9-26 408 Contra Costa Summit of Moraga Ridge. Comment
  UC20920  Cicuta maculata var. bolanderi Jos. Burtt Davy 1900-6-7 6668 Contra Costa near Martinez Comment
  CAS-BOT-BC277974  Cirsium cymosum John Thomas Howell 1942-7-19 17039 Contra Costa Near Rock City, Mt. Diablo Comment
  UC2070512  Cirsium cymosum Barbara Ertter with Mike Park, David Gowen 2004-7-17 18442 Contra Costa North side Mount Diablo, west of Twin Peaks. Comment
  UC691379  Cirsium cymosum var. cymosum Mary L. Bowerman 1942-6-1 3848 Contra Costa se of Rock City 502 Comment
  UC1953204  Cirsium occidentale David Keil with Barbara Ertter et al. 2000-6-18 28815 B Contra Costa Mount Diablo State Park. Lower part of Jumper [Juniper] Trail above Laurel Dell picnic area. Comment
  OBI73069  Cirsium occidentale David J. Keil, with Barbara Ertter et al. 2000-6-18 28816 Contra Costa Mount Diablo State Park. Fire interpretive trail around Mt. Diablo summit. 1128 Comment
  JEPS59324  Cirsium occidentale var. californicum W. L. Jepson 20843 Contra Costa Mt. Diablo Contra Costa Comment
  UC691385  Cirsium occidentale var. californicum Mary L. Bowerman 1934-4-21 2538 Contra Costa Muir Area, upper brushy edge Mount Diablo, Muir Area Comment
  JEPS59167  Cirsium occidentale var. venustum W. L. Jepson 7571 a Contra Costa Mt. Diablo, Donner Canyon Contra Costa Comment
  JEPS59174  Cirsium occidentale var. venustum W. L. Jepson 1922-5-23 9655 Contra Costa s slope, upper third of mt. Mt. Diablo Comment
  UC30817  Cirsium occidentale var. venustum J. Burtt Davy 1893-5-13 211 Contra Costa Claremont Canyon to Fish Ranch fide fieldbook Comment
  CDA42427  Cirsium vulgare D. G. Kelch, Vince Guise 2012-7-26 12 .235 Contra Costa El Sobrante; Circle Dr. Comment
  JEPS111724  Cirsium vulgare D. G. Kelch 2004-7-9 04 .298 Contra Costa Crockett - Carquinez Scenic Drive Just west of Pt. Costa 60 Comment
  JEPS99955  Cirsium vulgare A. Langston 2003-7-28 AL 75 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC162631  Clarkia R. D. Stone 1983-5-17 509 Contra Costa On ridge at northe end of Walker Ranch, near Alameda County line ca. 9 mi. NE of Livermore and 1 mi. NNE of Brushy Peak, upper Kellogg Creek drainage 342 Comment
  JEPS100006  Clarkia affinis G. Smick 2003-4-29 GAS 154 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1795900  Clarkia affinis Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14639 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; grassy hillside. Comment
  UC1606348  Clarkia biloba Barbara Ertter with Dianne Lake 1991-8-18 10676 Contra Costa e Crockett (n-facing slope above pilings ne of Bull Valley staging area); Carquinez Strait Regional Shoreline Comment
  JEPS111569  Clarkia biloba subsp. biloba D. G. Kelch 2004-5-9 04 .210 Contra Costa Crockett - Eckley Hills north of Bull Valley Staging Area 13 Comment
  POM153229  Clarkia biloba subsp. biloba C. L. Hitchcock 1928-6-5 15 Contra Costa Between Port Costa and Crockett, 1 mile west of Port Costa. 5 Comment
  RSA0059990  Clarkia biloba subsp. biloba C. L. Hitchcock 1928-6-5 13 Contra Costa Between Point Costa and Martinez, 1.5 mile from Port Costa. 40 Comment
  JEPS75483  Clarkia concinna subsp. concinna P. F. Yorks 1975-6-10 432 Contra Costa ca. 1.9 km s Bear Creek Road (on Hampton Rd., n of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  UC1952185 Image available Clarkia concinna subsp. concinna R. Raiche 1981-3-1 s.n. Contra Costa North America, U.S.A., California, Contra Costa County: Mt. Diablo. N. Slope of N. peak in talus slopes below the ridge line. Under Quercus spp., Juniperus californica, Cercocarpus betuloides & Pelea baldwinii. Comment
  CAS-BOT-BC172036  Clarkia gracilis subsp. gracilis Mary L. Bowerman 1931-5-16 858 Contra Costa Grassy area on rocky west flank of Ransom Point Ridge, summit of Mount Diablo Comment
  JEPS111562  Clarkia purpurea subsp. purpurea A. G. Murdock 2004-5-28 294 Contra Costa Pinole Peak 405 Comment
  CAS-BOT-BC163669  Clarkia purpurea subsp. quadrivulnera Alice Eastwood 1915-5-30 4549 Contra Costa Mt. Diablo Comment
  UC1122405  Clarkia purpurea subsp. quadrivulnera C. M. Belshaw 1936-5-8 2053 Contra Costa 1 3/4 mi ssw Mt. Diablo summit (near plot 4); Mt. Diablo Quadrangle Comment
  UC1122432  Clarkia purpurea subsp. quadrivulnera C. M. Belshaw 1936-5-13 2112 Contra Costa 3.7 mi ene Tassajero (plot 31); Mt. Diablo Quadrangle Comment
  UC692485  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1933-5-18 2122 Contra Costa Blackberry Spring Mount Diablo Comment
  RSA0059918  Clarkia purpurea subsp. quadrivulnera Glenn A. Gorelick 1967-5-20 s.n. Contra Costa Russelman Park, Mt. Diablo State Park Comment
  CAS-BOT-BC172365  Clarkia purpurea subsp. viminea Paul F. Covel 1940-5-12 1743 Contra Costa Summit of Mt. Diablo Comment
  UC1279898  Clarkia rubicunda Peter H. Raven 1957-6-20 10950 Contra Costa e end Tilden Regional Park (hillside at Inspiration Point) Comment
  UC1279946  Clarkia rubicunda Peter H. Raven 1957-7-5 11050 Contra Costa ne side of hills Point Richmond 106 Comment
  CAS-BOT-BC165037  Clarkia rubicunda Peter H. Raven 1957-7-5 11049 Contra Costa 0.2 mile from tip of Point Richmond Comment
  CHSC27728  Clarkia unguiculata Coleta Lawler 1978-6-23 296 Contra Costa West of Concord on Alhambra Valley Road, 0.7 miles east of Bear Creek Road; roadcut. Comment
  UC1586096  Clarkia unguiculata Barbara Ertter with Travis Columbus 1990-6-10 9105 Contra Costa w Pleasant Hill (hillside above junction of Spengler and Blue Oak trail, ne corner of park); Briones Regional Park, Briones Hills 274 Comment
  RSA144626  Clarkia unguiculata William M. Klein 1958-6-9 439 Contra Costa Rolling coastal sandhills behind the Antioch sewage treatment plant Comment
  RSA448454  Clarkia unguiculata E. E. Stanford 1930-5-24 1510 Contra Costa Marsh Creek Canyon. Comment
  CAS-BOT-BC439163  Claytonia exigua subsp. exigua Mary L. Bowerman 1933-4-15 1876 Contra Costa Mount Diablo. Canyon south of Arroyo del Cerro Comment
  CAS-BOT-BC439166  Claytonia exigua subsp. exigua Mary L. Bowerman 1932-3-12 1113 Contra Costa Mount Diablo. Alamo Canyon 365 Comment
  CAS-BOT-BC439172  Claytonia exigua subsp. exigua L. R. Abrams 1921-5-25 8023 Contra Costa Summit, Mt Diablo Comment
  UC172943  Claytonia exigua subsp. exigua C. F. Baker 1903-4-28 2816 Contra Costa Mt. Diablo, Mithcell's Canyon Comment
  UC692549  Claytonia exigua subsp. exigua Mary L. Bowerman 1935-4-22 2893 Contra Costa ridge w Pioneer Road, Mount Diablo (w of Stage Road); Mount Diablo 822 Comment
  UC765765  Claytonia exigua subsp. exigua R. F. Hoover 1938-3-25 2896 Contra Costa Lone Tree Valley Comment
  UC7935  Claytonia exigua subsp. exigua W. H. Brewer 1862-5-7 1059 Contra Costa Summit of Mt. Diablo; Mt. Diablo Comment
  CAS-BOT-BC439170  Claytonia exigua subsp. exigua Alice Eastwood 1915-5-30 4532 Contra Costa Unspecified Comment
  CAS-BOT-BC439171  Claytonia exigua subsp. exigua Rimo Bacigalupi 1925-3-25 1185 Contra Costa Along Joaquin Miller Road, just above The Hights [Heights] - Oakland Hills Comment
  CAS-BOT-BC439322  Claytonia exigua subsp. glauca Mary L. Bowerman 1932-3-12 1114 Contra Costa Mount Diablo. Alamo Canyon 365 Comment
  JEPS107017  Claytonia gypsophiloides J. Greenhouse with Kevin Hintsa 2004-4-5 5083 Contra Costa Mt. Diablo, Fire Interpretive Trail 1109 Comment
  UCD102390  Claytonia gypsophiloides Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. North Peak Road to North Peak. 880 Comment
  UC2028064  Claytonia gypsophiloides Barbara Ertter with Tony Morosco 1998-4-12 16010 Contra Costa Mount Olympia on north side of Mount Diablo, East Trail along ridge NE of summit. Comment
  CAS-BOT-BC439439  Claytonia parviflora subsp. parviflora Alice Eastwood 1915-5-3 s.n. Contra Costa Mt. Diablo Comment
  UC1618110  Claytonia perfoliata Donald G. Nelson 1937-3-30 466 Contra Costa along Marsh Creek Rd. between Claytonville and Byron Comment
  POM225662  Claytonia perfoliata J. T. Howell 1931-3-10 5755 Contra Costa East side of Mt. Diablo 7 miles from Clayton on Livermore road. Comment
  RSA469285  Claytonia perfoliata H. de Forest 1930-4-6 s.n. Contra Costa [Unspecified] Comment
  CAS-BOT-BC440076  Claytonia perfoliata subsp. perfoliata John Thomas Howell 1933-5-14 11273 Contra Costa Hills east of St. Mary's College Comment
  JEPS99970  Claytonia perfoliata subsp. perfoliata S. O'Neil 2003-2-18 SEO 5 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SEINET194968 Image available Claytonia perfoliata subsp. perfoliata A. A. Heller 1908-4-17 8909 Contra Costa Tracey. 10 Comment
  UC1745809  Claytonia perfoliata subsp. perfoliata Annetta M. Carter, Edward Lee 1935-3-29 756 Contra Costa Marsh Creek Rd., 1.2 mi. E of Clayton. Comment
  CAS-BOT-BC440073  Claytonia perfoliata subsp. perfoliata Mary L. Bowerman 1932-3-6 1099 Contra Costa Mount Diablo. Sycamore Ridge Comment
  UC1795716  Claytonia rubra subsp. depressa Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14591 Contra Costa North Peak of Mt. Diablo; open rocky flats. Comment
  UC105334  Clematis flammula N. Floy Bracelin 1941-8-10 1703 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC545780  Clematis lasiantha Annetta M. Carter 1935-6-1 873 Contra Costa n.w. slope of main peak Mt. Diablo 975 Comment
  JEPS120287  Clinopodium vulgare Barbara Ertter with David Gowen 2012-9-20 21018 Contra Costa lower Vollmer Peak Trail paralleling South Drive, southeastern Tilden Park in Berkeley Hills, ca. midway along trail, wide spot in shade of bay and pine (same location as 20919) Comment
  SEINET12050675  Clintonia andrewsiana W. Knight, Knight, I. 1988-1 6129 Contra Costa Redwood Regional Park, between pipe bridge and single curb bridge along Steam Trail 274 Comment
  JEPS5870  Collinsia bartsiifolia var. bartsiifolia Fred Shoemaker 1938-4-11 Contra Costa 3 mi w Byron Comment
  UC41779  Collinsia bartsiifolia var. bartsiifolia The Postmaster 1900-3-24 Contra Costa Oakley; Mount Diablo Region Comment
  UC691495  Collinsia heterophylla Mary L. Bowerman 1935-3-16 2739 Contra Costa Mount Diablo, e fork of Arroyo del Cerro Arroyo del Cerro; Mount Diablo, Arroyo del Cerro 262 Comment
  RSA0068475  Collinsia parviflora Katie Gallagher, Nick Jensen 2014-4-26 203 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  SEINET12343275  Collinsia sparsiflora Ottley 1920-4-25 468 Contra Costa San Francisco Bay Region, Mitchell Canon, Mt. Diablo 305 Comment
  UC691624  Collinsia tinctoria Mary L. Bowerman 1935-6-1 3117 Contra Costa summit Mount Diablo Mount Diablo, summit (towards Devils Pulpit) 1158 Comment
  JEPS79511  Collomia diversifolia Edward Lee 1978-5-13 Contra Costa Meridian Ridge Mt. Diablo Comment
  UCSB12513  Conium maculatum Grah, Nancy 1962-4-14 Contra Costa 0.1 mile on Tappan Lane morth of Tarry Lane, Orinda Comment
  CHSC23350  Convolvulus arvensis Willis Ball 1975-5-20 529 Contra Costa Contra Loma Regional Park. In area #1. At e end of island in center of main parking lot at s end of reservoir. 36 Comment
  JEPS111678  Conyza bonariensis D. G. Kelch 2003-8-13 03 .119 Contra Costa Martinez - Train Station 2 Comment
  UC1584663  Conyza canadensis Jerry Powell 1990-8-29 1586 Contra Costa Antioch National Wildlife Refuge Comment
  UC2027980  Conyza canadensis Barbara Ertter, Chris Thayer 1996-10-25 15391 Contra Costa Southwest flank of Mount Diablo, lower South Gate Road just inside park boundary. Comment
  JEPS83160  Cordylanthus mollis subsp. mollis Jim Parker 1985-6-26 Contra Costa along slough just n BM 7 Hastings (s of Suisun Bay, between Martinez (to w) and Port Chicago); Concord Naval Weapons Station, Hastings Slough Comment
  JEPS95193  Cordylanthus mollis subsp. mollis Jake Ruygt 1993-9-3 Contra Costa w of Hastings Slough (Concord Naval Weapons Station) Comment
  CAS-BOT-BC32964  Cordylanthus nidularius John Thomas Howell 1942-7-19 17044 Contra Costa NE of Deer Flat, Mt. Diablo Comment
  JEPS74986  Cordylanthus nidularius T. I. and F. M. Chuang 1975-6-29 7517 Contra Costa NE of Deer Flat; Mt. Diablo Comment
  RSA666381  Cordylanthus pilosus subsp. pilosus Barbara J. Ertter, Brad Olson 1993-8-8 12200 Contra Costa Bishop Ranch Regional Open Space southwest of San Ramon. Comment
  SEINET12765203  Cordylanthus pilosus subsp. pilosus Barbara Ertter, Lynne Hosley 1992-8-29 11266 Contra Costa East of Moutn Diablo in canyon along Coyote Trail.; 0 Comment
  UC1795844  Cordylanthus pilosus subsp. pilosus Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa 1995-10-22 14537 Contra Costa Three Springs Trail on northeast side of Mt. Diablo, in woods above ranch, north-facing slope. Comment
  UC2028021  Cordylanthus pilosus subsp. pilosus Barbara Ertter 1997-9-14 15815 Contra Costa southwest side of Mount Diablo, Wall Point Road east of crest of ridge. Comment
  CAS-BOT-BC209749  Cornus glabrata V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Comment
  CDA38583  Cornus sericea D. G. Kelch 2003-8-13 3 .132 Contra Costa Carquinez Strait; Pinole Creek. Comment
  JEPS111819  Cornus sericea D. G. Kelch 2003-8-13 03 .132 Contra Costa Pinole Creek 68 Comment
  LA40446  Cornus sericea subsp. sericea J. A. Ewan; 1936-7-5 9720 Contra Costa Reservoir road, Wildcat Creek Comment
  UC651290  Coronopus didymus Ira L. Wiggins 1930-4-18 4595 Contra Costa e end of Jersey Island, Fallow cornfield Jersey Island Comment
  UCR263555  Coronopus didymus Barbara Ertter 1990-5-15 8991 Contra Costa San Francisco Bay Region, South El Cerrito, north foot of Albany Hill at end of Yosemite Avenue cul-de-sac 4 Comment
  UC1618361  Cortaderia jubata Barbara Ertter 1991-9-28 10854 Contra Costa e end of Schmidt Street at El Cerrito recycling center, s end of Hillside Natural Area El Cerrito; , Hillside Natural Area, Schmidt Street Comment
  CDA37420  Cortaderia selloana D. G. Kelch, Mike Perlmutter 2011-9-23 11 .751 Contra Costa Immediately north of Discovery Bay. Comment
  JEPS75514  Corylus californica P. F. Yorks 1975-3-9 376 Contra Costa N of Briones Reservoir, ca. 1.6 km S of Bear Creek Road on Hampton Road Hampton Road Natural Reserve 200 Comment
  CDA42381  Cotoneaster pannosus D. G. Kelch 2012-5-27 12 .072 Contra Costa Carquinez Strait Region; Pinole Valley Park. Comment
  UC2028952  Cotoneaster pannosus Barbara Ertter 2000-7-16 17388 Contra Costa lower Pine Creek in Diablo Foothills Regional Park. Comment
  UC2029109  Cotula australis Barbara Ertter 1990-5-16 8992 Contra Costa South El Cerrito, corner of San Pablo Avenue and Carlson Blvd. Comment
  UC31273  Cotula coronopifolia W. H. Brewer 1862-4-25 993 Contra Costa Camp 68 Martinez Comment
  UC31281  Cotula coronopifolia W. H. Brewer 1862-4-24 993 Contra Costa salt marshes near Bay Martinez Comment
  UC2027742  Cotula coronopifolia Barbara Ertter 1997-1-5 15439 Contra Costa Lime Ridge Open Space on northwest side of Mount Diablo, section on north side of Ygnacio Valley Road. Comment
  UC2028453  Crassula aquatica Barbara Ertter with Joanne Kerbavaz 2000-8-20 17506 Contra Costa Hidden Pond on south side of Mount Diablo Comment
  UC1561257  Crassula connata Barbara Ertter with John Little 1989-4-2 8110 Contra Costa s. side Hillside Park in El Cerrito 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
  JEPS78617  Cressa truxillensis Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3289 Contra Costa Brown Island, Sandy Knoll Comment
  JEPS52457  Croton californicus W. L. Jepson 1923-10-4 10211 Contra Costa Antioch Comment
  JEPS79012  Croton californicus Edward Lee with Annetta Carter 1935-10-17 1626 Contra Costa Antioch; dunes Comment
  POM138276  Croton californicus C. F. Baker 1903-4-25 2825 Contra Costa Antioch. Comment
  UC30123  Croton californicus Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  UC765094  Croton californicus R. F. Hoover 1937-5-14 2113 Contra Costa Antioch sand-dunes Comment
  CDA35287  Croton californicus Chas. Lasser 1959-9-24 Contra Costa East of Byron, from Bixler Rd. to Old River. 0 Comment
  CAS-BOT-BC190080  Crypsis schoenoides Walter Knight 1978-8-27 3197 Contra Costa Loma Regional Park near Antioch. 30 Comment
  UC1618174  Crypsis schoenoides Barbara Ertter 1989-9-30 8866 Contra Costa 1 1/4 mi nw of Inspiration Point (Tilden Regional Park e of El Cerrito, East Bay Skyline National Recreation Trail (=Nimitz Way)); Tilden Regional Park, E Bay Skyline Nat'l Recreation Trail Comment
  CAS-BOT-BC190081  Crypsis schoenoides R. E. Frenkel 1964-9-17 864 Contra Costa On Marsh Creek Road at shore of Marsh-Kellogg Creek Reservoir. 45 Comment
  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
  JEPS67601  Cryptantha flaccida Mary L. Bowerman 1930-6-7 269 Contra Costa Meridian Peak summit Mount Diablo Comment
  UC691396  Cryptantha flaccida Mary L. Bowerman 1931-4-4 659 Contra Costa 4.5 mi from West road (= North Rd) entrance; Mount Diablo 396 Comment
  UC125955  Cryptantha hooveri P. B. Kennedy 1908-1 Contra Costa Antioch Comment
  JEPS84746  Cryptantha micromeres J. Stratford 1981-6-8 Contra Costa Huckleberry Trail Huckleberry Botanic Regional Preserve Comment
  UC193956  Cryptantha microstachys Edward Lee Greene 1886-5-24 Contra Costa Mt. Diablo 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
  UC79469  Cryptantha microstachys Katharine Brandegee Apr 1889 Contra Costa Antioch Comment
  POM64396  Cryptantha microstachys C. F. Baker 1903-4-28 2810 Contra Costa Mitchell s Canyon, Mt. Diablo. Comment
  UC2042963  Cryptantha muricata Barbara Ertter with David Gowen and Chris Thayer 2014-4-12 21712 Contra Costa Small ridge on north side of Prospectors GAp Road, just north of Ginochio property on east side of Mount Diablo. Comment
  JEPS108227  Cryptantha nevadensis David Gowen 2005-5-6 283 Contra Costa Mt. Diablo State Park. Rocky outcrops on the south side of North Peak. Comment
  JEPS67634  Cryptantha nevadensis Mary L. Bowerman 1932-3-27 1143 Contra Costa at base of Mitchell Rock Mount Diablo, Mitchell Rock Comment
  CDA22912  Cucurbita foetidissima D. G. Kelch 2008-9-1 8 .297 Contra Costa Carquinez Strait; North of Waterbird Park along RR tracks. E of Martinez. Comment
  OBI14811  Cuscuta californica Robert F. Hoover 1969-8-29 11565 Contra Costa Raymond Rd and Ames St, Livermore Valley Comment
  CDA33318  Cuscuta japonica Niang/Slattengreen 2008-8-2 PDR# 1454025 Contra Costa El Sobrante; Skyview Place (near Richmond city limits?) 0 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
  JEPS43032  Cuscuta salina var. major W. L. Jepson 1922-7-9 9731 Contra Costa Richmond Comment
  JEPS124470  Cuscuta subinclusa Daniel Slakey with CNPS Volunteers 2015-7-6 143 Contra Costa Mt. Diablo, about 200 m north of Frog Pond, near stream. Comment
  UC1197872  Cuscuta subinclusa Joseph P. Tracy 1932-9-10 10789 E Contra Costa Franklin Canyon 152 Comment
  UC562483  Cuscuta subinclusa Joseph P. Tracy 1932-9-10 10789 Contra Costa Franklin Canyon 152 Comment
  UC691904  Cuscuta subinclusa Mary L. Bowerman 1932-9-17 1587 Contra Costa Donner Canyon, w fork toward mouth Mount Diablo Comment
  UC1050005  Cydonia oblonga N. Floy Bracelin 1942-4-5 2012 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1055901  Cymbalaria muralis N. Floy Bracelin 1941-4-13 1154 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC2013065  Cynara cardunculus Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14927 Contra Costa Northwest base of Mount Diablo access to Foothills Regional Park from North Gate road along Little Pine Creek. Comment
  UCD60104  Cynodon dactylon P. W. Lamborn 1972-11-2 AES Contra Costa Nomellini Ranch. Comment
  UC615167  Cynoglossum grande Beryl O. Schreiber 1932-2-27 27 Contra Costa Redwood Canyon Comment
  UC2061523  Cynosurus echinatus Dean G. Kelch 2016-5-27 16 .139 Contra Costa Miller-Knox Hill. Comment
  CDA9292  Cyperus difformis D. G. Kelch 2006-9-15 6 .474 Contra Costa Carquinez Strait; Shell Ave., Martinez. Between Pine St. and Harborview Dr. Comment
  UC1606358  Cyperus eragrostis Barbara Ertter, Brad Olson 1991-9-28 10848 Contra Costa s. end San Pablo Reservoir (between Orinda and El Sobrante) 97 Comment
  UC1819043  Cyperus eragrostis Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14235 Contra Costa South side Mount Diablo, Sheepherder Springs complex 1/2 mile north of Curry Point, wet ground in grassland. 487 Comment
  UC691968  Cyperus niger Mary L. Bowerman 1930-10-4 480 Contra Costa Mt. Diablo, Maple Spring Comment
  CAS-BOT-BC110840  Cyperus strigosus Walter Knight; I. Knight; E. McClintock; J. T. Howell; B. Doyle; P. Rae 1978-9-5 3226 Contra Costa Browns Island, Botany Cove Comment
  JEPS107132  Cytisus scoparius Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14678 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay, northeast corner of area. Comment
  CDA29567  Danthonia californica D. G. Kelch, Troy MacGregor 2009-5-1 9 .289 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  JEPS21826  Danthonia californica Louise Elsenius 1958-5-17 6 Contra Costa ne Terrace-Bates intersection; El Cerrito 60 Comment
  JEPS100136  Daucus pusillus G. Smick 2003-5-13 GAS 188 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC32716  Deinandra corymbosa J. Burtt Davy 1896-1-1 Contra Costa Moraga Pass Comment
  UCD32433  Deinandra corymbosa Beecher Crampton 1950-6-20 596 Contra Costa Contra Costa County, 1 mile north of Richmond, Triangle Court. Comment
  CAS-BOT-BC294014  Deinandra kelloggii Dr. A. Kellogg 1870-4-22 s.n. Contra Costa Antioch Comment
  UC34625  Deinandra kelloggii Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  UC365836  Deinandra kelloggii Mrs. K. Curran Contra Costa near Antioch Comment
  UC990571  Deinandra kelloggii James I. McMurphy 1908-10-18 Contra Costa Antioch Comment
  UCD131076  Deinandra kelloggii Ann F. Johnson 1978-7-1 AN- 43 Contra Costa tall tarweed in dry grassy area near west PG and E tower, Antioch Dunes. Comment
  JEPS102902  Delairea odorata Barbara Ertter, Chris Thayer 1996-10-25 15358 Contra Costa Little Pine Creek, Diablo Foothills Regional Park Mount Diablo Comment
  SEINET5546958  Delphinium californicum H. S. Gentry 1931-1 46 Contra Costa Collected near Buckle Point, Mount Diablo. Comment
  SEINET12087144  Delphinium decorum J. T. Howell 1933-1 11279 Contra Costa Hills E of St. Mary's College Comment
  UCSB39457  Delphinium decorum Fritzke, Sue 1980-3-29 Contra Costa 0.5 miles from the east end of Ball Rd; in the Shell Ridge Open Space Area; SE of the rock quarry 124 Comment
  LA207476  Delphinium hansenii H. Lewis; 1946-5-5 604 Contra Costa 1 mi. S. of Sommerville Comment
  CAS-BOT-BC10308  Delphinium hesperium Alice Eastwood 1915-5-30 4439 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC10012  Delphinium hesperium subsp. pallescens Edward Lee Greene 1889-3-24 285 Contra Costa Byron Comment
  JEPS6250  Delphinium hesperium subsp. pallescens W. L. Jepson 1923-6-10 9998 Contra Costa Upper Marsh Creek Mount Diablo Comment
  SEINET12099569  Delphinium nudicaule J. G. Lemmon s.n. Contra Costa American Valley and Mt. Diablo Comment
  UC9189  Delphinium parryi subsp. parryi J. Burtt Davy 1895-4-8 975 Contra Costa foothills Antioch Comment
  UCD96542  Delphinium patens P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo Summit. Comment
  CAS-BOT-BC116459  Delphinium patens subsp. patens Miss Mary Leolin Bowerman 1931-3-21 584 Contra Costa Sycamore Canyon, below chaparral on west facing slope 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
  UC909543  Delphinium patens subsp. patens J. Ewan 1934-4-8 8754 Contra Costa South Fork Marsh Creek Morgan Territory (slope) 243 Comment
  UC692139  Delphinium variegatum Mary L. Bowerman 1938-6-3 3651 Contra Costa Rock City Mount Diablo (n-facing slope) 518 Comment
  JEPS51668  Dendromecon rigida H. H. Haworth 1917-3-3 Contra Costa Maraga Ridge Comment
  UC1050504  Dendromecon rigida N. Floy Bracelin 1941-4-27 1222 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CDA1573  Deschampsia cespitosa subsp. holciformis D. G. Kelch 1996-10-17 s.n. Contra Costa Carquinez Strait; Pt Edith Marsh Comment
  UC2028474  Deschampsia cespitosa subsp. holciformis Barbara Ertter with Richard K. Brummitt 1998-5-6 16097 Contra Costa Antioch Marina, edge of brackish marsh Comment
  UC692394  Deschampsia danthonioides Mary L. Bowerman 1935-6-28 3175 Contra Costa 300 yds. e. of meridian fence line Meridian Peak summit (Mt. Diablo); Mt. Diablo 487 Comment
  UCD62510  Deschampsia danthonioides P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CAS-BOT-BC192673  Deschampsia danthonioides Mary L. Bowerman 1935-6-28 3164 Contra Costa Chase Pond 548 Comment
  CAS-BOT-BC192676  Deschampsia danthonioides Mary L. Bowerman 1935-6-28 3164 Contra Costa Chase Pond 548 Comment
  JEPS97566  Deschampsia elongata R. D. Stone 1980-7-13 273 Contra Costa Huckleberry Trail Oakland Hills, near Alameda-Contra Costa county line (NE of intersection of Skyline Blvd. and Snake Rd.) 396 Comment
  UCD18454  Deschampsia elongata Glen Holstein 2000-7-27 s.n. Contra Costa SE El Sobrante, NE side of San Pablo Ridge, along trails. Comment
  UC199816  Dicentra chrysantha V. King Chesnut 1887-9-10 Contra Costa Mt. Diablo Comment
  UC692103  Dicentra chrysantha Mary L. Bowerman 1932-9-3 1529 Contra Costa Muir Area; Mount Diablo Comment
  RSA128442  Dicentra chrysantha Joanne Taylor 1941-7-18 19 Contra Costa Nortonville. 244 Comment
  UC480634  Dichelostemma capitatum Carl Meyer 1928-2-22 297 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC150330  Diplacus aurantiacus Alice Eastwood 1921-4-18 10287 Contra Costa Antioch Comment
  CAS-BOT-BC150331  Diplacus aurantiacus E. E. Stanford 1930-5-24 1514 Contra Costa Marsh Creek Canyon Comment
  UC565411  Dirca occidentalis Chas. M. Belshaw 1935-3-3 372 Contra Costa shallow draw on ne face Bald Peak; San Pablo Reservoir Comment
  LA209791  Dirca occidentalis Chas M. Belshaw; 1935-3-3 372 Contra Costa San Pablo Reservoir, NE face of Bald Peak Comment
  RSA29241  Dirca occidentalis Joseph A. Ewan 1934-3-10 8643 Contra Costa 2 miles below Orinda Road bridge, Wildcat Canyon Comment
  SEINET6957397  Dirca occidentalis Lorin I. Nevling 1996-2-15 342 Contra Costa Tilden Regional Park, Regional Parks Botanical Garden. Cultivated plant grown from seed from Crockett Road, south of Crocket (see Accession card). "Western Leatherwood." Comment
  CAS-BOT-BC208653  Distichlis spicata A. A. Beetle 1941-6-24 s.n. Contra Costa Point Richmond on San Francisco Bay Comment
  CAS-BOT-BC208656  Distichlis spicata John Thomas Howell; Gordon H. True 1972-6-29 48925 Contra Costa Byron Hot Springs Road southeast of Byron Comment
  CDA31689  Distichlis spicata A. A. Beetle 1941-6-24 1752 Contra Costa Point Richmond on San Francisco Bay 0 Comment
  RSA0028902  Distichlis spicata Barbara Ertter, Dan Norris 1999-11-14 16851 Contra Costa Black Diamond Mines Regional Preserve, south of parking area for Somersville townsite. Comment
  UC2028443  Distichlis spicata Barbara Ertter with Chris Thayer 1996-10-25 15368 Contra Costa Northwest flank of Mount Diablo, Northgate east end Northgate Trail from North Gate Road to Diablo Foothills Regional Park Comment
  SD175796  Dittrichia graveolens D. G. Kelch 2006-9-25 06 476 Contra Costa Marsh 1.0 km west of Pacheco Slough. 2 Comment
  UC2042955  Dittrichia graveolens Barbara Ertter with David Gowen, Mike Park and Abby Moore 2006-11-24 18785 Contra Costa Mt Diablo State Park, Live Oak Campground. Comment
  UCD131226  Dittrichia graveolens Tina Carlsen; R. E. Preston 1996-10-9 s.n. Contra Costa on east side of Greenville road, around 0.5 mile south of I-580. 182 Comment
  CHSC21631  Dodecatheon clevelandii subsp. patulum Willis Ball 1975-3-9 494 Contra Costa Contra Loma Regional Park. In area #8. On n facing slope near top of hill ca. 500 yds s of main parking lot ca. 750 yds w of Contra Loma Blvd. 149 Comment
  UC635473  Dodecatheon clevelandii subsp. patulum H. L. Mason 1934-4-4 8058 Contra Costa Marsh Creek Road Comment
  UC765525  Dodecatheon clevelandii subsp. patulum R. F. Hoover 1938-3-5 2815 Contra Costa mouth of Kirker Creek Canyon Comment
  SBBG5600  Dodecatheon hendersonii J. M. Tucker 1946-3-24 1387 Contra Costa hills between Nortonville and Somersville Comment
  JEPS127676  Downingia insignis Barbara Ertter with David Gowen and Michael Park 2017-5-2 22797 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  UC765585  Downingia ornatissima var. eximia R. F. Hoover 1941-4-12 4841 Contra Costa 2 mi s Antioch Comment
  UC924240  Downingia ornatissima var. eximia H. S. Reed 1940-4-30 357 Contra Costa 4 mi s Antioch 15 Comment
  POM312380  Downingia pulchella Francia Chisaki, S. Galen Smith, Peter M. Ray 1951-4-14 1980 Contra Costa 7 miles N of Walnut Creek, E of Hwy 21, 0.2 mile S of intersection with Hwy 4. Comment
  UCD32494  Downingia pulchella Beecher Crampton 1950-4-22 535 Contra Costa Contra Costa County, Concord Valley, between Highway 4 and Buchanan Field (airport). 15 Comment
  UCD35141  Downingia pulchella Beecher Crampton 1950-4-22 535 Contra Costa Concord Valley. Comment
  UCD55128  Downingia pulchella Beecher Crampton 1950-4-22 535 Contra Costa Contra Costa County, Concord Valley, between Highway 4 and Buchanan Field (airport). 15 Comment
  JEPS128775  Draba verna Kevin Hintsa 1995-3-4 Contra Costa Deer Flat Road ca 1 mi NE of Juniper Campground, Mount Diablo State Park. Comment
  JEPS111936  Dryopteris arguta D. G. Kelch 2005-5-1 05 .190 Contra Costa Crockett - Edwards Canyon 150 Comment
  UC692286  Echinochloa crus-galli Mary L. Bowerman 1938-10-15 3726 Contra Costa North Road by trough where trail to west base spring begins Mount Diablo; , North Road 213 Comment
  CDA1988  Echinochloa muricata var. microstachya T. C. Fuller 1964-11-6 12809 Contra Costa Bethel Island. 0 Comment
  RSA756015  Eichhornia crassipes Barbara Ertter 1990-9-16 9642 Contra Costa Junction of Cypress Road and Jersey Island Road east of Oakley. Comment
  RSA721534  Eleocharis acicularis var. acicularis Mary L. Bowerman 1975-9-14 s.n. Contra Costa Mount Diablo. Comment
  UC1618280  Eleocharis macrostachya Barbara Ertter, Brad Olson 1991-9-28 10836 Contra Costa S end of San Pablo Reservoir, between Orinda and El Sobrante 91 Comment
  CAS-BOT-BC112796  Eleocharis macrostachya Walter Knight 1979-6-15 3381 Contra Costa Botany Cove, Browns Island Comment
  JEPS111062  Eleocharis macrostachya Lee Echols 2003-6-20 s.n. Contra Costa Richmond Field Station, SW corner of Danthonia grassland N of Lark Drive 15 Comment
  POM205573  Elymus X gouldii Jos Burtt Davy 1898-05 1742 Contra Costa Port Costa, on a steep bank Comment
  UCD61518  Elymus elymoides P. B. Kennedy 1916-5-21 302 Contra Costa Between Diablo and Summit. Comment
  JEPS99562  Elymus glaucus Mary Bowerman 1995-7-2 Contra Costa Mount Diablo, (probably Back Canyon or foot trail to Donner Canyon). Comment
  SEINET252197  Elymus glaucus David Amme 1988-8-16 Contra Costa Kensington Comment
  POM300594  Elymus glaucus Mary L. Bowerman 1935-5-16 3009 Contra Costa Behind Gabriel-Hinks' (east side of North Peak) 290 Comment
  CAS-BOT-BC203433  Elymus glaucus subsp. glaucus Mary L. Bowerman 1935-5-3 2964 Contra Costa Mount Diablo. Sloan Road 487 Comment
  JEPS76286  Elymus glaucus subsp. jepsonii W. L. Jepson 1943-6-8 20848 Contra Costa Moraga Ridge; ne slope Comment
  UC756645  Elymus multisetus G. L. Stebbins Jr. 1946-6-9 3655 Contra Costa 2 mi e El Cerrito (near Mira Vista Country Club) 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
  UC692424  Elymus trachycaulus Mary L. Bowerman 1935-5-18 3030 Contra Costa n summit parkijng area; Mount Diablo 1066 Comment
  POM301024  Elymus trachycaulus subsp. trachycaulus Mary L. Bowerman 1933-6-3 2234 Contra Costa Mount Diablo Summit. Ransom Point Trail Comment
  JEPS78615  Epilobium brachycarpum Walter Knight, L. R. Heckard, and Bert Johnson 1978-9-28 3296 Contra Costa South Landing Browns Island Comment
  UC1122299  Epilobium canum subsp. canum R. W. Lundh 1932-9-22 167 Contra Costa 1 mi sw Mt. Diablo; Mt. Diablo Quadrangle 914 Comment
  UC2042945  Epilobium canum subsp. canum Barbara Ertter with Laura Fujii 1989-10-29 8895 Contra Costa Las Trampas Regional Wilderness W of Danville. Comment
  UC692453  Epilobium canum subsp. canum Mary L. Bowerman 1930-8-24 430 Contra Costa Mitchell Canyon Mount Diablo (at lower edge of chaparral where it extends nearly to streambed) Comment
  CAS-BOT-BC166163  Epilobium canum subsp. canum L. R. Abrams 1910-10-8 4338 Contra Costa Mt. Diablo near Wall Pt. 457 Comment
  JEPS111564  Epilobium ciliatum subsp. ciliatum A. G. Murdock 2004-5-28 295 Contra Costa Refugio Valley 120 Comment
  UC1191729  Epilobium ciliatum subsp. ciliatum Malcolm A. Nobs and S. Galen Smith 1949-7-8 944 Contra Costa 4 mi n Kingston; Otto's Black Bass Resort Comment
  RSA128599  Epilobium ciliatum subsp. ciliatum Peter H. Raven 1950-7-5 2490 Contra Costa On the N road, Mt Diablo 396 Comment
  UCD105799  Epilobium ciliatum subsp. ciliatum Terri Williamson 1990-5-22 72 Contra Costa 212 Poshard St. Pleasant Hill. 12 Comment
  UC84478  Epilobium cleistogamum Katharine Curran Jun 1884 Contra Costa Antioch Comment
Read comments
Mar 27 2016
  UC19940  Epilobium densiflorum Bolander 6403 Contra Costa Mt. Diablo Comment
  CDA9496  Epilobium pygmaeum D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .22 Contra Costa Byron Airport. Comment
  UC692443  Epilobium torreyi Mary L. Bowerman June 1942 3847 Contra Costa lower Rock City Camp; Mount Diablo Comment
  UC692081  Equisetum telmateia subsp. braunii Mary L. Bowerman 1930-8-24 433 Contra Costa Mitchell Canyon near stream Mitchell Canyon; Mt. Diablo 251 Comment
  SEINET11614121  Equisetum telmateia subsp. braunii W. Knight, Knight, I. 1983-1 4771 Contra Costa Berkeley, Tilden Regional Park, botanic garden 305 Comment
  POM300620  Equisetum telmateia var. braunii Mary L. Bowerman 1939-3-31 3737 Contra Costa Johnny Walker Spring. 732 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
  JEPS123247  Eriastrum ertterae David Gowen 1907-6-20 472 Contra Costa Lime Ridge Open Space. South of summit near power line area. Comment
  UC133927  Eriastrum sapphirinum Katharine Brandegee May 1889 Contra Costa Judsonville Comment
  CAS-BOT-BC287530  Ericameria linearifolia W. W. Carruth 1902-4-29 s.n. Contra Costa Mt Diablo Comment
  CAS-BOT-BC287531  Ericameria linearifolia C. F. B. 1903-4-28 2942 Contra Costa Mitchell's Canyon, Mt Diablo Comment
  CAS-BOT-BC287532  Ericameria linearifolia H. M. Hall 1901-4-5 1745 Contra Costa Mt Diablo 685 Comment
  CAS-BOT-BC287535  Ericameria linearifolia John Thomas Howell 1926-3-7 1673 Contra Costa Mt Diablo Comment
  JEPS31300  Ericameria linearifolia W. L. Jepson 1921-5-22 9203 Contra Costa summit Mount Diablo 1127 Comment
  JEPS31349  Ericameria linearifolia W. L. Jepson 1918-6-3 7580 Contra Costa Donner Canon Mt. Diablo 609 Comment
  UC691863  Ericameria linearifolia Mary L. Bowerman 1930-6-18 351 Contra Costa Meridian Peak summit Mount Diablo, Meridian Peak (open rocky slope on e side) Comment
  UCD131397  Ericameria linearifolia R. A. Pendleton 1934-3-20 s.n. Contra Costa Mount Diablo. Comment
  UCD131420  Ericameria linearifolia David Scofield Wilson 1983-6-1 s.n. Contra Costa Mount Diablo. Comment
  UC1818984  Erigeron foliosus var. franciscensis Barbara Ertter 1994-6-26 12874 Contra Costa South of Point Molate Beach Park in west Richmond north of San Rafael Bridge, perennial grassland on bluff above beach between park and Point Castro. Comment
  UC482974  Erigeron foliosus var. franciscensis Mrs. G. Earle Kelly 1932-7-20 Contra Costa after junction on mountain road Mount Diablo Comment
  CAS-BOT-BC295516  Erigeron miser Joseph Andorfer Ewan 1936-7-5 9735 Contra Costa Wildcat Creek Comment
  CDA4941  Erigeron philadelphicus T. C. Fuller 1961-7-6 7370 Contra Costa South end of Antioch Bridge, Antioch. 0 Comment
  JEPS108352  Erigeron philadelphicus var. philadelphicus David Gowen 2005-3-31 220 A Contra Costa Valley east of Sibley Regional Preserve boundary. Growing along stream. Comment
  CDA28802  Eriodictyon californicum D. G. Kelch, Suzanne Latham, Matt Beyers 2009-6-3 9 .329 Contra Costa East Bay.; El Sobrante Ridge at end of Silver Belt Dr. on Miocene chert outcrop. Comment
  UC126026  Eriodictyon californicum Katharine Brandegee June, 1908 Contra Costa Antioch Comment
  RSA136732  Eriogonum J. T. Howell 1955-8-24 30903 Contra Costa Near summit of south peak, Mt. Diablo Comment
  CAS-BOT-BC248088  Eriogonum angulosum H. M. Hall 1916-8-17 10276 Contra Costa Deer Valley 182 Comment
  CAS-BOT-BC250386  Eriogonum gracile Lewis S. Rose 1955-10-17 55187 Contra Costa Antioch 15 Comment
  UC691087  Eriogonum gracile Mary L. Bowerman 1932-8-27 1524 Contra Costa s Turtle Rock; Mount Diablo Comment
  CAS-BOT-BC250383  Eriogonum gracile John Thomas Howell 1932-10-2 10789 Contra Costa Marsh Creek Road southwest of Brentwood Comment
  UC692016  Eriogonum gracile var. gracile Mary L. Bowerman 1932-9-3 1540 Contra Costa summit of Mount Diablo Mount Diablo Comment
  UC692018  Eriogonum gracile var. gracile Mary L. Bowerman 1932-11-11 1639 Contra Costa Little below Moses Rock Spring (ridge leading up from Buckle Point (on west road)); Mount Diablo Comment
  UC849517  Eriogonum luteolum var. luteolum Lewis S. Rose 1932-10-2 32656 Contra Costa Marsh Creek Road Comment
  CAS-BOT-BC268916  Eriogonum nudum var. auriculatum Mary L. Bowerman 1932-9-17 1585 Contra Costa Mount Diablo. Donner Canyon, West fork: of west fork 335 Comment
  UC691758  Eriogonum nudum var. auriculatum Mary L. Bowerman 1935-3-24 2754 Contra Costa w face Lime Ridge (between two major cuts of the Cowell Cement Company); Mount Diablo Comment
  UC692197  Eriogonum nudum var. auriculatum Mary L. Bowerman 1932-9-17 1578 Contra Costa Donner Canyon, w branch below fork Mount Diablo Comment
  CAS-BOT-BC268913  Eriogonum nudum var. auriculatum Annetta Carter 1940-6-22 1601 Contra Costa Mount Diablo. Lime Ridge 274 Comment
  UC1795738  Eriogonum nudum var. auriculatum Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14675 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay; grassland/scrub at northeast corner of area. Comment
  UC2029149  Eriogonum nudum var. auriculatum Barbara Ertter with Dan Norris 1999-11-14 16856 Contra Costa Black Diamond Mines Regional Preserve, east end Ridge Trail. Comment
  UC1229891  Eriogonum nudum var. psychicola Jerry Powell 1962-8-19 308 Contra Costa about 2 mi e Antioch Comment
  UC1926783 Image available Eriogonum nudum var. psychicola Barbara Ertter 1997-8-18 15766 Contra Costa Contra Costa County: Antioch Dunes on San Joaquin River east of Antioch. Comment
  SEINET10733565 Image available Eriogonum nudum var. psychicola Barbara J. Ertter 1997-8-18 Ertter 15766 Contra Costa Antioch Dunes (USFWS National Wildlife Refuge) on San Joaquin River east of Antioch, southwest corner of refuge north of railroad tracks in former vineyard, fine pale brown sand. Comment
  JEPS102909  Eriogonum roseum Barbara Ertter with Tony Morosco 1998-10-18 16436 Contra Costa NE corner of Lime Ridge recreation Area Mount Diablo 182 Comment
  JEPS105713  Eriogonum roseum David Gowen 2004-8-26 156 Contra Costa Black Diamond Mines Regional Preserve; 3/8 mi from parking area on Frederickson Lane, on Old Homestead Loop, just SW of its junction with the Homestead Trail Comment
  RSA39904  Eriogonum roseum P. A. Munz 1947-10-8 12207 Contra Costa Antioch 8 Comment
  CAS-BOT-BC267444  Eriogonum truncatum Mary L. Bowerman 1933-5-25 2198 Contra Costa Mount Diablo. Alamo Canyon: above Wilsons' barn Comment
  SBBG65483  Eriogonum truncatum M. K. Curran -May-1886 Contra Costa Antioch Comment
  UC6491 Image available Eriogonum truncatum W. H. Brewer 1862-5-29 1186 Contra Costa Camp 71, Marsh's Ranch, Contra Costa Co. Comment
  UC85720  Eriogonum truncatum M. K. Curran May 1886 Contra Costa Antioch Comment
  JEPS108318  Eriogonum umbellatum var. bahiiforme David Gowen 2005-5-29 399 Contra Costa West of Morgan Territory Rd. and the main entrance to Morgan Territory Regional Preserve. Rocky area west of summit of hill 2581 (Tassajara Pk.?). Comment
  UC691562  Eriogonum umbellatum var. bahiiforme Mary L. Bowerman 1930-6-14 328 Contra Costa summit Mount Diablo Mount Diablo Comment
  CAS-BOT-BC262348  Eriogonum vimineum Mary L. Bowerman 1932-8-27 1524 Contra Costa Mount Diablo. South of Turtle Rock Comment
  UC691685  Eriophyllum jepsonii Mary L. Bowerman 1931-6-2 918 Contra Costa Gregory Ranch Road Comment
  CAS-BOT-BC300963  Eriophyllum lanatum var. achilleoides Alice Eastwood 1921-6-11 10609 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC300970  Eriophyllum lanatum var. achilleoides E. E. Stanford 1930-5-24 1513 Contra Costa Marsh Creek Canyon Comment
  UC507128  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-6-25 E 96 Contra Costa sw slopes of Mount Diablo 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
  UC691730  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1933-6-7 2266 Contra Costa Large w fork of Curry Cave canyon; Mount Diablo, Curry Cave canyon Comment
  UCD132203  Eriophyllum lanatum var. achilleoides P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CAS-BOT-BC300966  Eriophyllum lanatum var. achilleoides L. Constance 1933-6-25 E 94 Contra Costa Near the base of Mount Diablo Comment
  CAS-BOT-BC300972  Eriophyllum lanatum var. achilleoides L. R. Abrams 1921-5-26 8003 Contra Costa Mt Diablo Comment
  CAS-BOT-BC300975  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1930-6-28 388 Contra Costa Mount Diablo Comment
  POM358034  Eriophyllum lanatum var. grandiflorum E. E. Stanford 1930-5-24 1513 Contra Costa Marsh Creek Canyon. Comment
  UC1252143  Eriophyllum staechadifolium Dr. Jerry Powell 1964-6-7 412 Contra Costa nw Richmond; Point Molate Comment
  UC1795733  Eriophyllum staechadifolium Barbara Ertter, Brad Olson 1994-5-7 12759 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  CHSC75094  Erodium moschatum Roger Thom 1987-5-26 17 Contra Costa 1900 block of Geary Rd. Walnut Creek. 30 Comment
  UC1487288  Eryngium aristulatum var. aristulatum Yusuf Sheikh 1974-5-5 587 Contra Costa 2.1 mi. s.e. of Byron Post sign on rd. J4 (3.1 mi. s.e. of intersection with Camino Diablo) Comment
  POM312389  Eryngium aristulatum var. aristulatum S. Galen Smith, Peter Kamb, Francia Chisaki 1951-4-14 433 Contra Costa Small pond 7 miles north of Walnut Creek, east of Highway 21, 0.2 mile south intersection with Highway 4 Comment
  UC2062628  Eryngium armatum Barbara Ertter 2002-5-16 17864 Contra Costa Richmond Field Station (UC-Berkeley). Comment
  UC21001  Eryngium articulatum J. W. Congdon Sept. 1886 Contra Costa Comment
  UC2026171  Eryngium castrense Barbara Ertter with Tony Morosco 1996-1-15 14547 Contra Costa Mount Diablo (southeast side) trail from Curry Point to Frog Pond; edge of Sheepherder Pond. Comment
  CDA32925  Eryngium jepsonii D. G. Kelch 2009-5-24 9 .294 Contra Costa Carquinez Strait; Carquinez Loop Trail S of Ozol, S-SW of Martinez, nr Wolcott Ln . Comment
  JEPS111619  Eryngium jepsonii D. G. Kelch 2004-7-9 04 .297 Contra Costa Crockett - Carquinez Scenic Drive Carq. Scenic Dr. Just west of Pt. Costa 60 Comment
  CAS-BOT-BC124232  Eryngium jepsonii Willis Linn Jepson 1895-9-1 s.n. Contra Costa Orinda Park Comment
  UC1745539  Eryngium vaseyi Annetta M. Carter 1951-5-13 3057 Contra Costa 3.3 mi. S of Byron. Comment
  CAS-BOT-BC40765  Erysimum capitatum Alice Eastwood; John Thomas Howell 1936-4-19 2151 Contra Costa Antioch sand hills. Comment
  CAS-BOT-BC40767  Erysimum capitatum G. B. Rossbach 1955-3-13 570 Contra Costa Along tidal estuary of San Joaquin River just east of Antioch. 24 Comment
  CAS-BOT-BC41526  Erysimum capitatum H. L. Mason 1933-4-9 7189 Contra Costa East of Antioch along the San Joaquin River. 12 Comment
  SJSU1509  Erysimum capitatum D. J. Thompson 1954-5-2 Contra Costa between Pinole & Pittsburg Comment
  UC1034902  Erysimum capitatum G. B. and R. P. Rossbach 1938-6-5 859 Contra Costa steep southerly slope near summit; Mt. Diablo Comment
  CAS-BOT-BC40756  Erysimum capitatum G. B. Rossbach 1955-3-20 571 Contra Costa Upper south slope of Mount Diablo. 1005 Comment
  CAS-BOT-BC40773  Erysimum capitatum Walter Knight 1965-3-1 s.n. Contra Costa Antioch. 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
  RSA102142  Erysimum capitatum var. capitatum G. B. Rossbach 1955-3-20 571 Contra Costa Mt Diablo. 1006 Comment
  UC118493  Eschscholzia californica T. S. Brandegee May 1883 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
  CDA40312  Eucrypta chrysanthemifolia D. G. Kelch 2005-5-13 5 .273 Contra Costa Carquinez Strait Region; Martinez - West: Ozol Rock and Scenic Drive, near Ozol Rock. Comment
  JEPS112429  Eucrypta chrysanthemifolia C. Thayer, J. Dunne 1997-3-27 Contra Costa 91 Comment
  UC35514  Eucrypta chrysanthemifolia var. chrysanthemifolia Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  UC2032815  Euphorbia lathyris Doran, Andrew Scott 2012-3-20 685 Contra Costa North end of Brooks Island along ridge, cleared area northwest of caretakers residence. Garden waste area. Comment
  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
  UC1085269  Euphorbia oblongata Rimo Bacigalupi with G. T. Robbins 1956-5-11 5641 Contra Costa 0.25 mi nw (above) Glen Frazer Station (on Santa Fe Railway, along roadside in Franklin Canyon); Franklin Canyon 106 Comment
  CDA4843  Euphorbia oblongata T. C. Fuller 1961-7-6 6585 Contra Costa Carquinez Strait; Alhambra Valley, Highway 4, 0.5 mile west of Glen Frazier Station, ca. 4 miles west of Martinez. 0 Comment
  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
  UC1818921  Euphorbia spathulata Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14222 Contra Costa Mt. Diablo southeast of Walnut Creek, north-facing slope north of Curry Point, grassy semishade at edge of oak woodland. 518 Comment
  JEPS111697  Eurybia radulina D. G. Kelch 2004-4-25 04 .116 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
  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
  CDA37818  Fallopia japonica Slate 2012-6-29 PDR# 1649771 Contra Costa Lafayette; southwestern corner of Village Center & Mt. Diablo Blvds. 0 Comment
  CAS-BOT-BC278177  Festuca D. E. Breedlove 1971-5-14 19339 Contra Costa Along Sierra Vista Way, Lafayette Comment
  UC2028487  Festuca arundinacea Barbara Ertter 1998-5-3 16047 Contra Costa Pine Canyon/Stage Road upstream from Dusty Road junction, southwest flank of Mount Diablo Comment
  CAS-BOT-BC278316  Festuca californica subsp. californica Mary L. Bowerman 1935-5-30 3094 Contra Costa Mount Diablo. Between the two ridges which converge at Twin Peaks (Eagle Point ridge) 350 Comment
  UC691232  Festuca elmeri Mary L. Bowerman 1935-5-3 2963 Contra Costa Sloan Road Mount Diablo 487 Comment
  UC2028396  Festuca elmeri Barbara Ertter with Susan D'Alcamo 1998-6-12 16192 Contra Costa North Peak Trail south of Prospectors Gap on east side of Mount Diablo summit, NE-facing slope Comment
  JEPS127231  Festuca microstachys var. pauciflora Lowell Ahart, Josephine Guardino 2016-4-19 20792 Contra Costa 2.3 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest to Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  CDA5267  Filago californica D. G. Kelch, A. G. Murdock 2005-5-13 5 .278 Contra Costa Carquinez Strait Region; Martinez - West: Ozol Rock and Scenic Drive. Comment
  CDA33826  Filago pyramidata D. G. Kelch 2010-5-15 10 .125 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 Comment
  UC691905  Forestiera pubescens Mary L. Bowerman 1936-6-20 3414 Contra Costa w side of ridge w Mt. Zion; Mount Diablo 198 Comment
  UCR5932  Fragaria vesca subsp. californica Charles Prentiss 1966-4-5 5 Contra Costa Tilden Park at Indian Camp, meadow west of parking lot Comment
  SEINET7417501 Image available Frangula californica subsp. californica L. J. Musselman 1970-7-26 3769 Contra Costa W slope of Mount Diablo 1067 Comment
  CAS-BOT-BC52533  Frangula californica subsp. californica H. E. McMinn 1922-10-17 402 Contra Costa unspecified Comment
  CAS-BOT-BC62921  Frangula californica subsp. tomentella John Thomas Howell 1930-9-28 5490 Contra Costa Marsh Creek Rd., e. of Clayton. Comment
  UC1122130  Frankenia salina C. M. Belshaw 1936-5-9 2080 Contra Costa 1.5 mi e Mulligan Hills; Mt. Diablo Quad. 152 Comment
  CAS-BOT-BC223393  Fraxinus dipetala Mary L. Bowerman 1935-6-1 3103 Contra Costa Mount Diablo. First small ridge east of Mitchell-Pine divide 1005 Comment
  UC692003  Fritillaria affinis Mary L. Bowerman 1931-3-8 562 Contra Costa Mount Diablo, near mouth of Mitchell Canyon Mitchell Canyon; Mount Diablo, Mitchell Canyon Comment
  CAS-BOT-BC136073  Fritillaria affinis Dean William Taylor 1971-3-28 971 Contra Costa Along Morgan Territory Road 304 Comment
  UCD84953  Fritillaria agrestis Chuck Hughes 2010-4-1 225 Contra Costa About 0.6 mile east of Los Vaqueros Road. 305 Comment
  UC1134594  Fritillaria biflora C. M. Belshaw 1936-5-12 2108 Contra Costa 5 mi s of Round Valley 487 Comment
  CDA3563  Fumaria capreolata Barbara Ertter 1999-3-21 16486 Contra Costa Miller Knox Regional Park, near Point Richmond (southeast of Richmond Ramblers building). 0 Comment
  UCD121961  Galium G. Thomas Robbins; John Weiler 1959-5-23 4031 Contra Costa About one-half mile east of Pt. San Pablo, overlooking San Pablo Bay, Richmond. 7 Comment
  UC171670  Galium andrewsii subsp. gatense K. Brandegee May 1889 Contra Costa Antioch Comment
  JEPS99947  Galium aparine S. O'Neil 2003-3-11 SEO 15 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691539  Galium aparine Mary L. Bowerman 1931-3-21 590 Contra Costa Sycamore Canyon Mount Diablo 335 Comment
  HSC19785  Galium aparine Greg Bos 1963-4-20 86 Contra Costa Pinole Valley Rd., SE of Pinole Flat Meadow area 76 Comment
  UCD121622  Galium aparine Robert C. Bechtel 1952-4-12 58 Contra Costa West side Mt. Diablo. 914 Comment
  LA208411  Galium californicum Joseph Andorfer Ewan; 1935-5-26 9299 Contra Costa Tufts in rock crevices and about outcrops. E slope Bald Peak, San Pablo Ridge 548 Comment
  JEPS14516  Galium californicum subsp. californicum L. T. Dempster 1956-6-1 1007 Contra Costa 15 El Toyonal Orinda Comment
  RSA666412  Galium murale Barbara Ertter, Chris Thayer 1993-5-7 11715 Contra Costa Ca 1/2 mile N of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land E of Tilden Park. Grazing land on lower slopes S of Wildcat Canyon Road. Comment
  UC2027989  Galium murale Barbara Ertter 1998-5-3 16031 Contra Costa Pine Ridge summit of Wall Point Road at southwest base of Mount Diablo. Comment
  UC2042798  Galium murale Barbara Ertter 1991-6-1 10071 Contra Costa Las Trampas Regional Wilderness in hills W of Danville, paved portion of Rocky Ridge Trail ca. 1 from parking lot. Comment
  JEPS112103  Galium parisiense D. G. Kelch 2003-3-21 03 .66 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 2 miles west of Martinez Contra Costa County CA. Grassy hill above cottonwood tree. Just south of end gate of Carquinez Scenic Drive 40 Comment
  UC2028363  Galium parisiense Barbara Ertter 1998-6-20 16261 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Borges Ranch Road at junction to private residences Comment
  JEPS112107  Galium porrigens var. porrigens D. G. Kelch 2003-4-3 03 .357 Contra Costa Cummings Skyway 134 Comment
  JEPS99945  Galium porrigens var. porrigens G. Smick 2003-2-20 GAS 51 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1143107  Galium tricornutum C. M. Belshaw 1936-5-13 2124 Contra Costa s Horse Valley (Plot 38); Mt. Diablo Quadrangle Comment
  RSA721733  Garrya flavescens subsp. flavescens Barbara Ertter, Holly C. Forbes 1996-2-11 14549 Contra Costa North side Mount Diablo; Murchio Gap on Median Ridge Road. 732 Comment
  CAS-BOT-BC169948  Garrya fremontii Lewis S. Rose 1954-6-29 54084 Contra Costa Mt. Diablo, summit 1170 Comment
  UCSC000542  Garrya fremontii R. W. Lundh 1932-8-26 145 Contra Costa 1.333 mi. W. of Mt. Diablo Mt. Diablo - Mt. Diablo 1097 Comment
  CAS-BOT-BC282608  Gastridium phleoides Mary L. Bowerman 1933-5-25 2190 Contra Costa Oyster Ridge, west end of south face, Mount Diablo Comment
  CAS-BOT-BC282610  Gastridium phleoides Mary L. Bowerman 1933-6-14 2272 Contra Costa Ridge between two main forks, Curry-Cave Canyon, Mount Diablo Comment
  CAS-BOT-BC282611  Gastridium phleoides Mary L. Bowerman 1935-7-22 3191 Contra Costa Hidden Pond, Mount Diablo 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
  UCD66551  Gastridium phleoides Beecher Crampton 1956-5-14 3380 Contra Costa Head of Horse Valley, 5 miles S of Antioch. Comment
  UC692386  Gastridium ventricosum Mary L. Bowerman 1935-7-22 3191 Contra Costa Hidden Pond (nw 1/4 S7) Mount Diablo; , Hidden Pond Comment
  JEPS125933  Gazania linearis D. W. Taylor 2001-3-21 17615 Contra Costa Blackhawk subdivision; growing near base of PG&E transmission tower 16/64 Comment
  HSC8643  Geranium carolinianum Greg Bos 1963-3-9 31 Contra Costa Point Isabel, Richmond 3 Comment
  JEPS111979  Geranium dissectum D. G. Kelch 2003-3-21 03 .75 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  JEPS61421  Geranium dissectum W. L. Jepson 1923-4-22 9862 Contra Costa Mt. Diablo Comment
  UCD103337  Geranium dissectum Morris Halperin 1929-4-21 s.n. Contra Costa Moraga Valley. Comment
  JEPS111972  Geranium molle D. G. Kelch 2004-5-9 04 .203 Contra Costa Crockett - Edwards Canyon Upper Edwards Canyon 160 Comment
  JEPS111974  Geranium molle D. G. Kelch 2004-4-25 04 .117 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Hill Southwest of large cottonwood. West of Martinez at gated end of Scenic Dr 50 Comment
  OBI72045  Geranium rotundifolium Barbara Ertter 1996-6-4 14684 Contra Costa Tilden Regional Park in hills E of Berkeley, restoration site NE of jctn of Grizzly Peak Blvd & Golf Course Dr Comment
  RSA34736  Gilia achilleifolia R. C. Rollins 1946-3-25 3045 Contra Costa Sacramento Northern Embarkment, Moraga Canyon, 0.8 miles east of railway tunnel Comment
  RSA67217  Gilia achilleifolia Verne Grant, Alva Grant 1948-5-2 8424 Contra Costa in Bear Creek Canyon, 0.5 miles north of summit and ca. 3.8 miles from Orinda-San Pablo road. Comment
  RSA67597  Gilia achilleifolia Verne Grant, Alva Grant 1948-5-2 8424 Contra Costa in Bear Creek Canyon, 0.5 miles north of summit and ca. 3.8 miles from Orinda-San Pablo road. Comment
  UC2028999  Gilia achilleifolia Barbara Ertter 2000-3-30 16918 Contra Costa North side of Mount Diablo, open rocky area ca halfway down Back Canyon Trail from Murchio Gap. Comment
  UC908864  Gilia achilleifolia subsp. achilleifolia Herbert L. Mason 1929-3-29 5123 Contra Costa Mount Diablo 762 Comment
  UC23730  Gilia achilleifolia subsp. multicaulis Bolander April 1866 6400 Contra Costa Mt. Diablo Comment
  RSA470088  Gilia achilleifolia subsp. multicaulis L. S. Rose 1941-5-15 41231 Contra Costa Mt. Diablo, w. slope. 396 Comment
  RSA722061  Gilia achilleifolia subsp. multicaulis Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14226 Contra Costa Mt. Diablo southeast of Walnut Creek, serpentine knoll ca 1/2 airmile north of Curry Point 488 Comment
  UC1347218  Gilia capitata subsp. staminea Lewis S. Rose 1933-4-17 33090 Contra Costa Antioch Comment
  UC908108  Gilia capitata subsp. staminea Herbert L. Mason 1929-3-31 5159 Contra Costa Antioch; San Joaquin River Comment
  RSA84900  Gilia capitata subsp. staminea G. Thomas Robbins 1940-5-19 323 Contra Costa on hills bordering the San Joaquin River e. g. Antioch Comment
  UC691680  Gilia clivorum Mary L. Bowerman 1935-4-19 2865 Contra Costa North Road 6.3 mi from North Gate (Mount Diablo, above Pepperwood Spring); Mount Diablo, above Pepperwood Spring 609 Comment
  UC909033  Gilia clivorum Herbert L. Mason 1929-3-29 5128 Contra Costa 2 mi e Clayton (Marsh Creek Road); e of Clayton Comment
  UCR182844  Gilia clivorum Peter L. Morrell, N. Takebayashi, Diana Wolf, D. E. Krause 1995-5-21 471 Contra Costa Central Coast, S of Clayton in Mitchell Canyon, above the banks of Mitchell Creek and beneath Eagle Peak 400 Comment
  POM300968  Gilia clivorum Mary L. Bowerman 1935-4-19 2865 Contra Costa North Road, 6.3 miles from North Gate 610 Comment
  UC2027799  Gilia clivorum Barbara Ertter with Mary Bowerman, Lisa Schultheis 1995-3-31 13946 Contra Costa Mount Diablo State Park, steep west-facing bank with outcrops near weir at mouth of Mitchell Canyon Comment
  UC691625  Gilia clivorum Mary L. Bowerman 1933-5-3 1976 -2 Contra Costa due s summit Mount Diablo (Chaparral burn (1931)); Mount Diablo, due s of summit 731 Comment
  UCSB5069  Gilia clivorum Kamb, Peter; Chisaki, Francia 1950-3-18 Contra Costa Head of Pine Canyon; Mount Diablo 533 Comment
  UC1554401  Gilia millefoliata Alice M. Ottley 1920-3-6 219 Contra Costa Black Hills San Francisco Bay Region, Black Hills Comment
  UC691597  Gilia tricolor subsp. tricolor Mary L. Bowerman 1935-4-19 2864 Contra Costa West Road = North Road 6.3 mi from entrance Mount Diablo (Mount Diablo, above Pepperwood Spring); Mount Diablo, above Pepperwood Spring 609 Comment
  UC2029034  Gilia tricolor subsp. tricolor Barbara Ertter 2000-3-30 16911 Contra Costa North side of Mount Diablo, Deer Flat at head of Mitchell Canyon. Comment
  JEPS11821  Githopsis diffusa subsp. robusta Mary L. Bowerman 1931-5-16 851 Contra Costa Meridian Peak summit Mount Diablo Comment
  UC22422  Glaux maritima Jos. Burtt Davy 1900-6-7 6665 Contra Costa near Martinez Comment
  UC2013053  Glycyrrhiza lepidota Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14920 Contra Costa Northwest base of Mount Diablo access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  CDA35615  Gnaphalium californicum I. Godwyn 2011-5-12 PDR# 1649778 Contra Costa Richmond; Wildcat Canyon Regional Park, near McBryde Ave. 0 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
  CDA6044  Gnaphalium luteoalbum A. G. Murdock, D. G. Kelch 2004-6-4 314 Contra Costa Carquinez Strait Region; Martinez - Train Station. Comment
  JEPS99527  Gnaphalium palustre Mary L. Bowerman 1975-9-14 Contra Costa Mount Diablo, in mud of rivulent leading into Sheepherder's Pond from the spring. Comment
  UC697200  Gnaphalium palustre Mary L. Bowerman 1935-6-28 3168 Contra Costa s of summit Mount Diablo (by Old Government trail); , Chase Pond 548 Comment
  UCD32426  Gnaphalium palustre Beecher Crampton 1950-6-20 595 Contra Costa Contra Costa County, 1 mile north of Richmond, Triangle Court. Comment
  CDA15251  Grindelia camporum G. F. Hrusa, D. Crowe 1998-5-8 14382 Contra Costa Sacramento Delta; Dow Ecological Reserve on Dow Chemical property at Pittsburg. Comment
  LA203655  Grindelia camporum Lewis S. Rose; 1930-7-22 sn Contra Costa Antioch Bridge Comment
  CDA6078  Grindelia camporum var. camporum A. G. Murdock, D. G. Kelch 2004-5-28 284 Contra Costa Carquinez Strait; Pinole Peak. 0 Comment
  CHSC99194  Grindelia camporum var. camporum John Dittes 2006-10-26 1416 Contra Costa San Joaquin Valley (foothills near nw edge); ~2.0 air-miles south of Marsh Creek Reservoir Gauging Station, 1.6 air-mile southwest of intersection of Camino Diablo and Vasco Road; Contra Costa Water District's Los Vaqueros Watershed Mitigation Project Area. 67 Comment
  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
  CAS-BOT-BC305237  Grindelia hirsutula Lewis S. Rose 1954-9-27 54116 Contra Costa Byron 6 Comment
  CDA32858  Grindelia hirsutula D. G. Kelch 2010-10-5 10 .419 Contra Costa The Delta; Just east of Antioch bridge. Comment
  JEPS25016  Grindelia hirsutula G. Thomas Robbins 1958-10-2 3941 Contra Costa just w Carlson Blvd. (near Stege railroad siding, along Southern Pacific Railroad); Richmond 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
  CAS-BOT-BC305249  Grindelia hirsutula R. F. Hoover 1966-8-31 9945 Contra Costa 1.5 mi. e. of Danville, at junction of Tassajara and Freitas Roads Comment
  UC14399  Guillenia flavescens Chesnut and Drew 1889-4-17 Contra Costa Clayton Comment
  UC691110  Guillenia lasiophylla Mary L. Bowerman 1932-3-23 1131 Contra Costa ridge e Donner Canyon; Mount Diablo 274 Comment
  UC691127  Guillenia lasiophylla Mary L. Bowerman 1932-4-27 1401 Contra Costa canyon w Riggs Canyon; Mount Diablo, Oyster Ridge 350 Comment
  POM181442  Guillenia lasiophylla I. L. Wiggins 1930-4-17 4564 Contra Costa One mile east of Mountain House, on road to Byron. Comment
  UCD85240  Hainardia cylindrica M. Wiesendanger 1926-5-1 1466 Contra Costa Near Richmond. Comment
  SEINET10893043  Hainardia cylindrica E. E. Stanford 1930-5-16 Stanford 1485 Contra Costa Near Old River. Levee. Comment
  UC1005829 Image available Hakea oleifolia N. Floy Bracelin 1946-1-20 2864 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1795633  Hedypnois rhagadioloides 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-BC305328  Helianthella castanea John Thomas Howell 1931-5-12 6475 Contra Costa Nortonville Comment
  JEPS86612  Helianthella castanea L. R. Heckard 1989-4-22 6727 a Contra Costa Rocky Point Mt. Diablo State Park Comment
  POM203709  Helianthella castanea J. T. Howell 1931-5-12 6475 Contra Costa Nortonville Comment
  RSA8535  Helianthella castanea J. T. Howell 1933-5-14 11282 Contra Costa Hills east of St. Mary's college Comment
  UC2031433  Helianthella castanea Barbara Ertter 1991-6-1 10074 Contra Costa Las Trampas Regional Wilderness in hills W of Danville Comment
  UC57441  Helianthella castanea H. M. Hall 1901-4-5 1733 Contra Costa Mt. Diablo Region of San Francisco Bay, 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
  CAS-BOT-BC223918  Helianthemum scoparium Mary L. Bowerman 1932-4-9 1332 Contra Costa Mount Diablo. Ridge to Wall Point, from near Rock City Comment
  CDA6550  Helianthus californicus D. G. Kelch, A. G. Murdock 2004-9-2 4 .332 Contra Costa Carquinez Strait Region; Pacheco Marsh. Marsh east of Martinez and I-680 and east of lone tree Marsh. Comment
  UC691488  Helianthus gracilentus Mary L. Bowerman 1933-5-11 2074 Contra Costa most westerly part 1931 burn; Mount Diablo, Inner Black Hills 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
  UC1536900  Hemizonia congesta subsp. luzulifolia Gordon H. True Jr. 1937-10-12 838 Contra Costa near Pinole 30 Comment
  UC990629  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1909-9-24 Contra Costa San Ramon Road above Hayward (canyon) Comment
  POM301046  Hemizonia fitchii Mary L. Bowerman 1936-9-17 3548 Contra Costa North Road 2.5 miles from North Gate. 244 Comment
  POM360296  Hemizonia fitchii E. E. Stanford 1930-9-20 2100 Contra Costa Near Walnut Creek Comment
  RSA81676  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1909-9-24 s.n. Contra Costa San Ramon Road, above Hayward. Comment
  RSA424742  Hemizonia pungens subsp. pungens Aaron Liston 1987-4-27 670 -4 Contra Costa 3 miles S of Byron. Comment
  UC901876  Heracleum lanatum L. Constance 1950-6-25 3326 Contra Costa s. rim Wildcat Canyon (Tilden Park); , Tilden Park 365 Comment
  JEPS111755  Hesperevax sparsiflora var. sparsiflora D. G. Kelch 2005-5-1 05 .203 Contra Costa Crockett - Edwards Canyon 100 Comment
  JEPS12781  Hesperevax sparsiflora var. sparsiflora Rimo Bacigalupi with G. T. Robbins 1955-5-4 4974 Contra Costa pasture near summit Kirker Pass (along old road (not summit of new freeway bypass)) 274 Comment
  UC1614098  Hesperevax sparsiflora var. sparsiflora Charles M. Belshaw 1935-6-24 779 Contra Costa 0.5 mi e Grizzly Peak (n-face of Bald Peak); Bald Peak Comment
  UC2028049  Hesperocnide tenella Barbara Ertter 1998-2-15 15913 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, outcrops on north side of Joaquin Ridge south of Indian Creek, +/- wooded. Comment
  UC692694  Hesperolinon breweri Mary L. Bowerman 1935-6-15 3137 Contra Costa Eagle Point Ridge w 2632; Mount Diablo 762 Comment
  UC692695  Hesperolinon breweri Mary L. Bowerman 1933-6-7 2254 Contra Costa North Peak Ridge Mount Diablo 1005 Comment
  UC692701  Hesperolinon breweri Mary L. Bowerman 1935-5-22 3058 Contra Costa saddle w Twin Peaks ((Eagle Point Ridge)); Mount Diablo 441 Comment
  CAS-BOT-BC167434  Hesperolinon breweri Mrs. K. Brandegee 1907-6-16 s.n. Contra Costa Hills between Antioch and Marsh Creek, on the easterly side of Mt. Diablo 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
  UC697193  Hesperolinon californicum Mary L. Bowerman 1935-6-28 3160 Contra Costa Inner Black Hills just w meridian; Mount Diablo 457 Comment
  CAS-BOT-BC175984  Hesperolinon californicum Mary L. Bowerman 1933-6-14 2279 Contra Costa Inner Black Hills west of 1970. Mount Diablo Comment
  UC187375  Hesperomecon linearis C. F. Baker 1903-4-25 2802 Contra Costa Antioch Comment
  UC856339  Heterodraba unilateralis Alice Eastwood 1914-3-14 3766 Contra Costa Byron Springs Comment
  CAS-BOT-BC143647  Heteromeles arbutifolia John Thomas Howell 1925-10-11 1494 Contra Costa Moraga Ridge, Oakland Hills Comment
  CDA25927  Heteromeles arbutifolia D. G. Kelch, A. G. Murdock 2003-2-7 3 .038 Contra Costa Carquinez Strait Region; Franklin Canyon. Comment
  OBI62818  Heteromeles arbutifolia John Osborne 1970-11-21 14 Contra Costa 3173 Somerset Dr., Lafayette 76 Comment
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Sep 18 2016
  CDA22495  Heterotheca grandiflora D. G. Kelch, Mike Park 2008-9-1 8 .294 Contra Costa Carquinez Strait; 200 m W of Pacheco Slough, E of Martinez. Comment
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Dec 4 2011
  JEPS111693  Heterotheca grandiflora D. G. Kelch 2004-4-3 04 .52 Contra Costa Martinez - Vine Hill West of 680. North of highway 4. 44 Comment
  JEPS20381  Heterotheca grandiflora Joseph P. Tracy 1932-9-10 10783 Contra Costa e of Pinole (on Franklin Canyon Road); Rodeo Creek 91 Comment
  UC723790  Heterotheca grandiflora Joseph Andorfer Ewan 1935-3-10 9152 Contra Costa esp. on bluffs overlooking Sacramento River at Antioch Sacramento River Comment
  UC1619993  Heterotheca sessiliflora subsp. bolanderi Barbara Ertter 1991-5-5 9770 Contra Costa s of Pittsburg (s side of Rose Hill above cemetery, Black Diamond Mines Regional Preserve); Black Diamond Mines Regional Preserve, Rose Hill 365 Comment
  POM180746  Heterotheca sessiliflora subsp. echioides J. T. Howell 1930-7-31 5416 Contra Costa North Berkeley Hills. Comment
  UC692352  Heuchera micrantha var. erubescens Mary L. Bowerman 1933-6-14 2283 Contra Costa inner Black Hills (second gully w of n spur); Mount Diablo, Black Hills Comment
  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
  CAS-BOT-BC55300  Hirschfeldia incana John Thomas Howell; Gordon H. True 1972-6-29 48929 Contra Costa Byron Hot Springs Road southeast of Byron. Comment
  JEPS129820  Holcus lanatus Dean G. Kelch and Andrew G. Murdock 2005-6-24 05 .386 Contra Costa Crockett - 5th St. Prairie. Comment
  CAS-BOT-BC325840  Holocarpha heermannii A. D. E. Elmer 1903-7-1 4613 Contra Costa Mount Diablo Comment
  SBBG33459  Holocarpha heermannii A. D. E. Elmer -Jul-1903 Contra Costa Mount Diablo Comment
  CAS-BOT-BC325828  Holocarpha heermannii David D. Keck 1933-11-2 2622 Contra Costa 5 mi. S.E. of Clayton on Marsh Creek Road opposite Mt. Diablo Comment
  CAS-BOT-BC325833  Holocarpha heermannii John Thomas Howell 1929-9-21 4389 Contra Costa 5 miles se. of Clayton on Marsh Creek Road Comment
  CAS-BOT-BC325842  Holocarpha heermannii H. M. Hall 1930-9-24 12887 Contra Costa Walnut Creek 1.7 miles below Alamo P.O. Comment
  CAS-BOT-BC325845  Holocarpha heermannii David D. Keck 1933-11-2 2622 Contra Costa 5 mi. E. of Clayton on Marsh Creek Road just opposite Mt. Diablo Comment
  POM52821  Holocarpha heermannii A. D. E. Elmer 1903-07 4613 Contra Costa Mount Diablo Comment
  UC913074  Holocarpha obconica D. D. Keck and J. Clausen 1933-10-27 2567 Contra Costa 1.6 mi w Byron (1.4 mi from junction with Vasco Road); ; 1.6 mi. W of Byron, 1.4 mi. from jct. w/ Vasco Road, Contra Costa Co. Comment
  CAS-BOT-BC320241  Holocarpha obconica Margi Oard 1988-10-9 s.n. Contra Costa Ca. 2 miles east of junction with Deer Valley Road along north side of Marsh Creek Road Comment
  CAS-BOT-BC320242  Holocarpha obconica David D. Keck 1933-10-27 2566 Contra Costa Vasco Road at junction with Byron Road Comment
  CAS-BOT-BC320245  Holocarpha obconica James I. McMurphy 1909-5-21 s.n. Contra Costa Antioch Hills Comment
  SEINET7545173  Holocarpha obconica subsp. autumnalis D. D. Keck, J. Clausen 1933-1 2567 Contra Costa 1.6 mi.W. of Byron, 1.4 mi. from jct with Vasco Rd. Comment
  CAS-BOT-BC324617  Holocarpha virgata R. F. Hoover 1965-9-24 9648 Contra Costa Foothills west of Byron east of Kellogg Creek Comment
  UC702534  Holocarpha virgata subsp. virgata L. S. Rose 1941-10-16 41467 Contra Costa 2 mi w Byron 33 Comment
  UC523544  Holocarpha virgata subsp. virgata David D. Keck 1933-11-2 2620 Contra Costa 6 mi from Antioch (between Lone Tree Way and Marsh Creek Road); Horse Valley Comment
  UC1127988  Holodiscus discolor R. C. Wilson 1935-3-19 141 Contra Costa 1 mi se of Wall Point (Quadrangle Mount Diablo); Quadrangle Mount Diablo 426 Comment
  UC691114  Holodiscus discolor Mary L. Bowerman 1930-6-22 364 b Contra Costa Mount Diablo, Mitchell Canyon Mitchell Canyon; Mount Diablo, Mitchell Canyon Comment
  CAS-BOT-BC152593  Holodiscus discolor var. discolor Alice Eastwood 1915-6-21 4733 Contra Costa San Leandro Comment
  UCD159359  Holozonia filipes D. S. Park 2010-6-22 144 Contra Costa Wildwood canyon, along trailside. Grassland. Abundant. 97 Comment
  UC756636  Hordeum G. L. Stebbins Jr. 1946-6-9 3661 Contra Costa 2 mi E of El Cerrito (near Mira Vista Country Club) Comment
  JEPS100015  Hordeum brachyantherum S. O'Neil 2003-5-8 SEO 34 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SEINET5554708  Hordeum brachyantherum J. Hamai 1985-1 s.n. Contra Costa Russell Reserve. Comment
  UC2070616  Hordeum brachyantherum Barbara Ertter 2002-5-16 17863 Contra Costa Richmond Field Station (UC-Berkeley). Comment
  JEPS111064  Hordeum brachyantherum subsp. brachyantherum Lee Echols 2003-6-15 s.n. Contra Costa N of Lark Drive in SW portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  UC1606308  Hordeum brachyantherum subsp. brachyantherum Barbara Ertter, Chris Thayer 1993-5-7 11689 Contra Costa on Wildcat Canyon Road Hopkins Spring 1/2 mi se Inspiration Point (East Bay Municipal Utilities District land e of Tilden Park); Hopkins Spring, East Bay Municipal Utilities District land 304 Comment
  CDA15241  Hordeum marinum subsp. gussoneanum G. F. Hrusa, D. Crowe 1998-5-8 14372 Contra Costa Sacramento Delta; Formerly disturbed, low poorly drained depression on Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Dense colony surrounding lowest part of depression. Site now dry, appar. wet earlier, appears alkaline. Annual. Comment
  JEPS70553  Hordeum marinum subsp. gussoneanum W. L. Jepson 1918-6-15 7674 Contra Costa Wild Cat Creek Canyon , Wild Cat Creek Canyon (Berkeley Hills) Comment
  UC55039  Hordeum marinum subsp. gussoneanum Jos. Burtt Davy 1898-4-8 4253 Contra Costa Danville Comment
  UCD85808  Hordeum marinum subsp. gussoneanum Brandegee 1916-5-9 s.n. Contra Costa Byron Springs. Comment
  CAS-BOT-BC289559  Hordeum marinum subsp. gussoneanum A. A. Heller 1928-4-15 14498 Contra Costa Near Byron Comment
  UC1950126  Hordeum marinum subsp. gussoneanum Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8140 Contra Costa alkali sink W and adjacent to Clifton Court Forebay, ca 15 airmiles SW of Stockton Comment
  SEINET10595762  Hordeum murinum Ball 1975-3-2 BALL 456 Contra Costa In area #4. On beach ca. 30 yds. S of dam on E side of lake. Accompanying species include Bromus rigidus, etc. Soil sandy clay. 32 Comment
  POM205088  Hordeum murinum subsp. glaucum Jos Burtt Davy 1898-05 1730 Contra Costa Danville Comment
  POM301853  Hordeum murinum subsp. glaucum Mary L. Bowerman 1933-5-8 2003 Contra Costa Fossil Ridge, south face, not far from but out of sight of South Gate 290 Comment
  CAS-BOT-BC284776  Hordeum murinum subsp. glaucum Mary L. Bowerman 1933-5-8 2003 Contra Costa Mount Diablo. Fossil Ridge, south face, not far from but out of sight of South Gate 289 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
  RSA123439  Hordeum murinum subsp. leporinum R. W. Lundh 1933-4-17 229 Contra Costa Bolinas Creek 152 Comment
  UC14231  Horkelia californica subsp. dissita N. K. Chestnut Contra Costa Mt. Diablo 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
  JEPS21869  Hornungia procumbens Annette Waters 1958-4-13 199 Contra Costa 1 mi s of Byron (0.4 mi w from Byron Highway on Byron Hot Springs Road, 0.3 mi n from Byron Hot Springs Road) Comment
  JEPS1653  Hydrophyllum occidentale W. L. Jepson 1921-5-22 9209 Contra Costa Mt. Diablo 1158 Comment
  JEPS100042  Hypericum calycinum A. Langston 2003-6-23 AL 54 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS36519  Hypochaeris glabra W. L. Jepson 1922-5-15 9645 Contra Costa North Berkeley Hills Comment
  POM181476  Hypochaeris glabra I. L. Wiggins 1930-4-18 4596 Contra Costa East end of Jersey Island. Comment
  UC691452  Hypochaeris glabra Mary L. Bowerman 1931-4-11 691 Contra Costa Pine Canyon 121 Comment
  CAS-BOT-BC312937  Hypochaeris glabra Ira L. Wiggins 1930-4-18 4596 Contra Costa Levee at east end of Jersey Island Comment
  UC407368  Hypochaeris glabra Ira L. Wiggins 1930-4-18 4596 Contra Costa Comment
  CAS-BOT-BC311407  Hypochaeris radicata Goodwin; Bellue 1932-5-6 s.n. Contra Costa Unspecified Comment
  CAS-BOT-BC133497  Iris Walter Knight; Joanne Dean 1978-8-14 3152 Contra Costa Browns Island Comment
  IRVC14051  Iris douglasiana J. Lanier 1967-5-14 s.n. Contra Costa Tilden Park. Comment
  UC2028408  Iris pseudacorus Barbara Ertter with Richard K. Brummitt 1998-5-16 16096 Contra Costa Antioch Marina, edge of brackish marsh Comment
  JEPS78631  Isolepis cernua Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3306 Contra Costa Botany Cove Browns Island, Botany Cove Comment
  UCD15912  Isolepis cernua Molly Hunter 1998-7-7 s.n. Contra Costa Concord Naval Weapons Station, along Highway 4, Northeast of city of Concord (about 300 meters South of Suisun Bay). 0 Comment
  UCD133390  Iva axillaris M. Wiesendanger 1926-6-26 1566 Contra Costa Richmond. Comment
  UC1949201  Jaumea carnosa Barbara Ertter with Elizabeth Neese 1988-10-15 7975 Contra Costa W of I-580 in El Cerrito, W side along Rydin Road N of Central Avenue Comment
  CHSC93646  Juglans californica var. hindsii Paul Kirk; Joe Callizo 2001-10-8 7 Contra Costa City of Lafayette Community Park, along Grizzly Cr. drainage on W side of Las Trampas Cr., 30 m downstream from culvert under Silverado Dr. 128 Comment
  CAS-BOT-BC102303  Juglans hindsii D. E. Stone; B. L. Stone 2004-7-9 4286 Contra Costa Just inside entrance to northern perimeter of Mount Diablo State Park, at terminus of Mitchell Canyon Rd south of 172 Comment
  CAS-BOT-BC102306  Juglans hindsii Barrett Anderson 1987-4-30 3486 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  UC2028644  Juglans hindsii Barbara Ertter with Chris Thayer 1996-10-25 15355 Contra Costa Northwest flank of Mount Diablo Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park Comment
  JEPS100044  Juglans regia G. Smick 2003-5-30 GAS 209 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS112451  Juncus balticus D. G. Kelch 2005-4-24 05 .180 Contra Costa Franklin Canyon Franklin Canyon. Collier Hill. West Carbon. 16 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
  JEPS100049  Juncus bufonius A. Langston 2003-6-6 AL 39 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS112455  Juncus bufonius D. G. Kelch 2005-3-24 05 .51 Contra Costa Pt. Pinole near wharf 2 Comment
  RSA0029053  Juncus bufonius var. bufonius Barbara Ertter 1999-6-12 16716 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 Cones Point Road (near powerline). 457 Comment
  UC2028166  Juncus bufonius var. congestus Barbara Ertter 1998-5-3 16078 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, near Wall Point, SW-facing bank above road. Comment
  UC2028305  Juncus bufonius var. congestus Barbara Ertter, Susan D'Alcamo 1998-6-12 16200 Contra Costa Along Curry Canyon Road just east of Curry Point, south side of Mount Diablo. Comment
  CDA9521  Juncus effusus D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .25 Contra Costa CA Delta; Along the old San Joaquin River Channel, S of Clifton Court Forebay and SE of Byron. Comment
  RSA0027417  Juncus effusus var. pacificus Barbara Ertter, Joanne Kerbavaz, Mary Bowerman 2000-8-20 17514 Contra Costa South side of Mount Diablo, Green Ranch Road at Meridian Springs Creek crossing. 747 Comment
  UC2028458  Juncus effusus var. pacificus Barbara Ertter with Joanne Kerbavaz and Mary Bowerman 2000-8-20 17514 Contra Costa South side Mount Diablo, Green Ranch Road at Meridian Springs Creek crossing Comment
  UC1789175  Juncus gerardi Barbara Ertter, Steve Matson 2003-5-31 18175 Contra Costa Martinez Regional Shoreline, brackish marsh along Pickleweed Trail west of Arch Bridge, Comment
  CDA15268  Juncus mexicanus G. F. Hrusa, D. Crowe 1998-5-8 14399 Contra Costa Sacramento Delta; Drainage ditch parallel to Antioch-Pittsburg Hwy, at E end of Dow Chemical property. Comment
  JEPS112437  Juncus patens D. G. Kelch 2004-5-7 04 .200 Contra Costa Ca ada del Cierbo Ca ada del Cierbo 40 Comment
  POM300634  Juncus patens Mary L. Bowerman 1938-6-30 3703 Contra Costa Plants of Mount Diablo: Lower Canyon Spring, which is moister than the upper spring. 976 Comment
  UC691912  Juncus patens Mary L. Bowerman 1938-6-30 3703 Contra Costa Lower Spring Canyon Mount Diablo 975 Comment
  UCD141766  Juncus patens M. Wiesendanger 1926-5-1 1465 Contra Costa near Richmond. Comment
  JEPS102917  Juncus phaeocephalus var. paniculatus Barbara Ertter 1998-5-3 16061 Contra Costa wet meadow below Stage Road SE of Turtle Rock Ponds; Mount Diablo 304 Comment
  JEPS112448  Juncus phaeocephalus var. paniculatus A. G. Murdock 2004-5-28 276 Contra Costa Refugio Valley 120 Comment
  RSA0033763  Juncus phaeocephalus var. paniculatus Barbara Ertter 1998-5-3 16061 Contra Costa Area of Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo, below road SE of ponds. 304 Comment
  RSA0027402  Juncus phaeocephalus var. paniculatus Barbara Ertter 1999-7-17 16765 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, Wildcat Creek Trail between Rifle Range Road and boundary with Tilden Regional Park. On east side of road. Comment
  JEPS112433  Juncus xiphioides D. G. Kelch 2004-7-9 04 .307 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  UC691976  Juncus xiphioides Mary L. Bowerman 1930-6-28 383 Contra Costa Canyon Nook Picnic Grounds Mount Diablo 670 Comment
  UC691978  Juncus xiphioides Mary L. Bowerman 1932-11-12 1648 Contra Costa Pine Spring Mount Diablo Comment
  JEPS48238  Juniperus californica W. L. Jepson 1918-6-5 7617 Contra Costa North Peak, Mt. Diablo Mt. Diablo, North Peak 822 Comment
  UC1076380  Juniperus californica Herbert L. Mason 1923-11-12 850 Contra Costa middle slopes Mt. Diablo Comment
  UC480589  Juniperus californica Carl Meyer 1928-2-22 282 Contra Costa Mt. Diablo Comment
  UC77  Juniperus californica Harley P. Chandler 1901-4-5 980 A Contra Costa Mt. Diablo Comment
  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-BC235870  Keckiella corymbosa A. D. E. Elmer 1903-7-1 4956 Contra Costa Mount Diablo Comment
  CAS-BOT-BC235871  Keckiella corymbosa A. D. E. Elmer 1903-7-1 4956 Contra Costa Mt. Diablo Comment
  UCD19084  Kochia scoparia subsp. scoparia Clyde Elmore 1983-7-20 s.n. Contra Costa Contra Costa County. Comment
  JEPS71238  Koeleria macrantha Mary L. Bowerman 1931-5-2 796 Contra Costa upper end of canyon, 2 n ridges, Eagle Pt. Ridge Mt. Diablo; , 2 n ridges, Eagle Pt. Ridge Comment
  SEINET186056 Image available Koeleria macrantha V. E. Long 1933-6-14 223 a Contra Costa Mt. Diablo 457 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
  UCD85733  Koeleria macrantha Beecher Crampton 1956-5-14 3394 Contra Costa 3.7 miles southeast of Clayton, on Marsh Creek Road. Comment
  CAS-BOT-BC273611  Koeleria pyramidata Mary L. Bowerman 1933-6-14 2274 Contra Costa Mount Diablo. Curry-Cave canyon: Ridge between two main forks, at north end of flat at upper end Comment
  CAS-BOT-BC273612  Koeleria pyramidata Mary L. Bowerman 1932-4-16 1354 Contra Costa Mount Diablo. Eagle Point ridge above Twin Peaks (1682 point) 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
  JEPS99525  Lactuca saligna Mary L. Bowerman 1975-9-14 Contra Costa Mount Diablo. By hillside near Chase Pond. Comment
  CAS-BOT-BC340536  Lactuca serriola Walter Knight 1978-10-4 3315 Contra Costa Browns Island Comment
  CAS-BOT-BC340541  Lactuca serriola John Thomas Howell; Gordon H. True 1972-7-29 s.n. Contra Costa On Byron Hot Springs Road southeast of Byron Comment
  CAS-BOT-BC340542  Lactuca serriola R. E. Frenkel 1964-2-5 353 Contra Costa On California Hwy. 21, Market Plaza Center, Alamo 79 Comment
  UC710613  Lactuca virosa John Thomas Howell 1943-8-22 19310 Contra Costa San Leandro Creek Canyon 243 Comment
  CAS-BOT-BC340696  Lactuca virosa John Thomas Howell 1943-8-22 19310 Contra Costa Near head of San Leandro Creek Canyon 243 Comment
  RSA40156  Lactuca virosa J. T. Howell 1943-8-22 19310 Contra Costa Near head of San Leandro Creek Canyon. 244 Comment
  UC697161  Lagophylla ramosissima Mary L. Bowerman 1930-6-5 262 Contra Costa North Road 5.8 mi from North Gate; Mount Diablo 457 Comment
  JEPS99988  Lamarckia aurea G. Smick 2003-4-22 GAS 140 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2043144  Lamium amplexicaule Barbara Ertter with David Gowen 2015-2-22 22228 Contra Costa Green Ranch area on Mount Diablo SE of summit, between Green Ranch Road and Alder Creek. Comment
  JEPS111658  Lasthenia californica A. G. Murdock 2005-3-25 229 Contra Costa Hercules - Carbon 50 Comment
  RSA181411  Lasthenia californica James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC337973  Lasthenia californica Niall McCarten; V. I. Dains 1986-1-1 03231522 40 Contra Costa W of Camino Diablo & Kellogg Creek, East Contra Costa County Comment
  RSA523885  Lasthenia californica Barbara Ertter, Jim Jokerst, D. Magney 1989-4-5 8119 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  UC1118939  Lasthenia californica subsp. californica C. M. Belshaw 1936-5-12 2111 Contra Costa 3.7 mi ene Tassajero; Mt. Diablo Quad., plot 31 Comment
  UC1142637  Lasthenia conjugens Edw. L. Greene 1887-4-17 Contra Costa Antioch Comment
  UC1728009  Lasthenia conjugens R. Ornduff 1998-5-10 10186 Contra Costa pasture on N side of Hwy 4 and e of I-80 Comment
  UC33074  Lasthenia conjugens J. Burtt Davy 1895-4-7 968 Contra Costa Antioch; ; Antioch, Contra Costa Co. Comment
  UCD133741  Lasthenia fremontii Ira L. Wiggins 1930-4-17 4579 Contra Costa 1/4 mile south of Byron. Comment
  UC1598597  Lasthenia glaberrima A. D. E. Elmer 1903-5-1 4321 Contra Costa Walnut Creek Comment
  CAS-BOT-BC352926  Lasthenia glaberrima Kellogg 1870-4-20 s.n. Contra Costa Antioch Comment
  POM301039  Lasthenia glaberrima Mary L. Bowerman 1935-6-21 3153 Contra Costa Mount Diablo: South of Turtle Rock, pool east of main pond Comment
  UC90071  Lasthenia glabrata subsp. glabrata K. Brandegee 1889-5-1 Contra Costa Antioch Comment
  RSA31360  Lasthenia glabrata subsp. glabrata Joseph A. Ewan 1935-5-26 9300 Contra Costa E slope Bald Peak, San Pablo Ridge. 549 Comment
  UC697156  Lasthenia microglossa Mary L. Bowerman 1936-4-23 3405 Contra Costa Mitchell-Pine Divide, northern most point Mount Diablo 838 Comment
  RSA721598  Lasthenia microglossa Mary L. Bowerman 1979-4-10 s.n. Contra Costa Mount Diablo. Mitchell Canyon opposite upper end of old reservoir. Comment
  UC1363828  Lasthenia microglossa Robert Ornduff 1958-3-22 4807 Contra Costa ca 0.75 mi sw end Mitchell Canyon Road (base of Mitchell Rock, above Mitchell Creek); Mount Diablo, Mitchell Creek, Mitchell Rock Comment
  UC1301068  Lasthenia minor Helen K. Sharsmith 1963-4-7 5297 Contra Costa near Byron 7 Comment
  JEPS81844  Lasthenia platycarpha Rimo Bacigalupi with Paul C. Hutchinson and John Weiler 1959-3-10 6967 Contra Costa 1 mi se Byron (in fields e of Byron road) 6 Comment
  UC1314947  Lasthenia platycarpha R. F. Hoover 1967-4-28 10505 Contra Costa Byron Hot Springs Comment
  CAS-BOT-BC204904  Lathyrus Paul F. Covel 1936-5-17 154 Contra Costa Mt Diablo, on trail summit-north peak Comment
  CAS-BOT-BC213350  Lathyrus jepsonii subsp. californicus Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley Comment
  RSA406665  Lathyrus jepsonii subsp. californicus E. E. Stanford 1930-5-24 1515 Contra Costa Marsh Creek Canyon. Comment
  CHSC39488  Lathyrus sulphureus Tyler Williams; V. Oswald 1984-4-18 21 Contra Costa Mt. Diablo. Ca. 5 yd e of turnout on Summit Rd., 0.1 mi e of Junction Ranger Station in Mount Diablo State Park. 609 Comment
  UC764680  Lathyrus vestitus R. F. Hoover 1941-4-12 4844 Contra Costa w branch of San Pablo Creek San Pablo Creek Comment
  JEPS55375  Lathyrus vestitus var. vestitus W. L. Jepson 1918-6-5 7615 Contra Costa Donner Canyon Mt. Diablo 701 Comment
  UC2061511  Laurus nobilis Dean G. Kelch 2016-4-30 16 .102 Contra Costa Carquinez Strait: Selby, west of Crockett. On west side of canyon near old dwelling foundation. Comment
  JEPS100063  Lavatera cretica A. Langston 2003-7-7 AL 59 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC30597  Layia chrysanthemoides J. Burtt Davy 1895-4-7 947 Contra Costa Antioch Comment
  CAS-BOT-BC323907  Layia chrysanthemoides Brandegee no date on sheet s.n. Contra Costa Antioch Comment
  JEPS75555  Layia gaillardioides P. F. Yorks 1974-4-19 130 Contra Costa n of Briones Reservoir ca. 1.4 km s of Bear Creek Road; Hampton Road Natural Reserve 170 Comment
  UC589705  Layia gaillardioides Douglas Horn 1938-4-24 61 Contra Costa w of Orinda 274 Comment
  UC89222  Layia gaillardioides K. Brandegee Contra Costa Mt. Diablo Comment
  CAS-BOT-BC321749  Layia gaillardioides John Thomas Howell 1941-4-6 16176 Contra Costa Deer Flat, Mt. Diablo Comment
  UC2027818  Layia gaillardioides Barbara Ertter with Stu Garrett 1997-3-29 15531 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  JEPS13502  Layia glandulosa Robert F. Hoover 1935-3-10 315 Contra Costa Antioch Comment
  CAS-BOT-BC321076  Layia glandulosa Joseph Andorfer Ewan 1935-3-10 9146 Contra Costa Along Sacramento River at Antioch Comment
  UC468839  Layia glandulosa W. C. Blasdale 1893-5-13 Contra Costa Comment
  CDA10019  Layia hieracioides D. G. Kelch 2007-6-3 7 .429 Contra Costa East Bay; Along gated portion of Hampton Rd N of San Pablo Reservoir. Comment
  UC89175  Layia hieracioides Brandegee May 1883 Contra Costa Judsonville Comment
  CAS-BOT-BC327247  Layia hieracioides David D. Keck 1941-6-5 5307 Contra Costa Berkeley Hills, Fish Creek Rd., 0.25 mi W of E. portal of Broadway Tunnel 335 Comment
  CAS-BOT-BC370667  Layia platyglossa C. F. Baker 1903-5-28 2874 Contra Costa Antioch Comment
  CAS-BOT-BC377907  Layia platyglossa Lewis S. Rose 1933-4-17 33093 Contra Costa Antioch Comment
  SEINET3147924  Layia platyglossa L. S. Rose 1933-4-17 33093 Contra Costa Antioch Comment
  UC30669  Layia platyglossa Harley P. Chandler 1901-4-5 992 Contra Costa Mt. Diablo Comment
  UC691490  Layia platyglossa Mary L. Bowerman 1931-5-7 811 Contra Costa grassy area near saddle on side North Peak; Mount Diablo, Meridian-North Peak saddle Comment
  JEPS75303  Lemna gibba L. R. Heckard 1975-11-2 4211 Contra Costa nw side Brooks Island (Richmond); , Brooks Island Comment
  UC2027954  Lemna minor Barbara Ertter with Joanne Kerbavaz 2000-8-20 17504 Contra Costa Frog Pond on southeast side of Mount Diablo. Comment
  JEPS78825  Lepechinia calycina Edward Lee 1936-5-24 2166 Contra Costa 10 miles from Marsh Creek Road, Morgan Territory Comment
  SEINET4081593  Lepechinia calycina B. C. Templeton 1962-1 sn Contra Costa Mount Diablo. Comment
  UC691411  Lepechinia calycina Mary L. Bowerman 1932-9-3 1532 Contra Costa Mount Diablo, Muir area: Burn (1931) Comment
  JEPS111001  Lepechinia calycina W. L. Jepson 1921-11-19 9522 Contra Costa Chamise ridge, Mt. Diablo Comment
  CAS-BOT-BC88706  Lepidium acutidens Lewis S. Rose 1933-3-29 33041 Contra Costa Nortonville. 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
  JEPS73691  Lepidium dictyotum var. acutidens L. R. Heckard with Wm. Hirano and Ted Niehaus 1968-3-3 1760 Contra Costa about 3 mi se Byron (at junction of Holey Road, along Byron-Bethany road) 7 Comment
  UC545796  Lepidium dictyotum var. acutidens Annetta M. Carter 1935-3-10 753 Contra Costa s of Kirker Pass road junction with Nortonville road (Kirker Pass road) 121 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
  UC2029041  Lepidium latifolium Barbara Ertter 2000-3-30 16899 Contra Costa Mitchell Canyon trailhead, adjacent to horse staging area in parking lot. Comment
  RSA66775  Lepidium latipes J. T. Howell 1933-3-29 10907 Contra Costa Nortonville Comment
  CAS-BOT-BC89892  Lepidium nitidum Alice Eastwood 1914-3-14 3775 Contra Costa Byron Springs. Comment
  RSA8344  Lepidium nitidum L. S. Rose 1933-3-29 33045 Contra Costa Pittsburg Comment
  UC2028050  Lepidium nitidum Barbara Ertter 1998-2-15 15911 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, roadside near Indian Creek. Comment
  JEPS16599  Lepidium oxycarpum Edward Lee Greene 1888-4-17 Contra Costa Wildcat Creek Comment
  UC10608  Lepidium oxycarpum J. Burtt Davy 1898-4-8 4263 Contra Costa Danville Comment
  CAS-BOT-BC273931  Leptochloa fusca subsp. fascicularis John Thomas Howell; Gordon H. True 1972-6-29 48944 Contra Costa Along Byron Hot Springs Road where water has stood, southeast of Byron Comment
  UCD64056  Leptochloa fusca subsp. uninervia Chandler Jensen 1957-11-7 Contra Costa Vasco road, about 5 mi. south of Brentwood. Comment
  UC1151682  Leptochloa uninervia Beecher Crampton 1959-10-19 5467 Contra Costa Vasco Rd. just n junction with Mt. Diablo Road (4 mi s of Brentwood) Comment
  CAS-BOT-BC226592  Leptosiphon ambiguus Mary L. Bowerman 1934-3-18 2481 Contra Costa Mount Diablo. West of Russelman Park on edge of Donner Canyon Comment
  UC2027821  Leptosiphon androsaceus Barbara Ertter with Stu Garrett 1997-3-29 15529 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. 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
  RSA167170  Leptosiphon liniflorus J. M. Tucker 1963-4-12 3686 Contra Costa On west side of Holey Road, 3 miles southeast of Byron. Comment
  UCD118881  Leptosiphon liniflorus J. M. Tucker 1963-4-12 3686 Contra Costa on west side of Holey Road, 3 miles southeast of Byron. Comment
  CAS-BOT-BC324118  Lessingia glandulifera var. glandulifera Alice Eastwood 1921-4-18 10270 Contra Costa Antioch Comment
  UC87926  Lessingia pectinata var. tenuipes T. S. Brandegee 1890-5-1 Contra Costa Brentwood Comment
  RSA107412  Lessingia pectinata var. tenuipes L. S. Rose 1955-10-17 55185 Contra Costa Antioch 15 Comment
  JEPS25155  Leymus X multiflorus G. Thomas Robbins with John Weiler 1959-5-23 4026 Contra Costa Brooks Island San Francisco Bay, Richmond (slopes on w side) Comment
  JEPS481  Leymus X multiflorus W. L. Jepson 1937-7-2 18445 Contra Costa swale 1/2 mi w Crockett Comment
  POM365328  Leymus condensatus A. A. Beetle 1941-6-24 1751 Contra Costa Pt. Richmond on San Francisco Bay Comment
  CDA15266  Leymus triticoides G. F. Hrusa, D. Crowe 1998-5-8 14397 Contra Costa Sacramento Delta; Large colony at confluence of ditch adjacent to Antioch-Pittsburg highway and former streambed passing through disturbed grasslands at E end of Dow Chemical property in Pittsburg. Both blue-glaucous and green forms present. Comment
  UCD65640  Leymus triticoides A. A. Beetle 1941-6-24 1751 Contra Costa Point Richmond on San Francisco Bay. Comment
  CAS-BOT-BC272217  Leymus triticoides Walter Knight 1965-9-7 1174 Contra Costa Along San Joaquin River bank, Antioch dunes Comment
  CAS-BOT-BC451580  Lilaea scilloides Walter Knight 1977-6-12 s.n. Contra Costa Morgan Territory land bank (se. of Mt. Diablo at head of Marsh Creek) 585 Comment
  UC2029177  Lilaea scilloides Barbara Ertter with Alan Prather 2003-6-7 18191 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo. Comment
  CAS-BOT-BC211110  Lilaeopsis masonii W. Knight; I. Knight 1977-5-22 s.n. Contra Costa Antioch Dunes Comment
  UCD127576  Lilaeopsis masonii Robert E. Preston 1991-10-1 604 Contra Costa Antioch, Big Break Marina, along east side of levee north of the marina. 0 Comment
  UC691999  Lilium pardalinum Mary L. Bowerman 1935-6-21 3144 Contra Costa e fork Arroyo del Cerro; Mount Diablo 289 Comment
  UCD116496  Limnanthes douglasii William B. Davis 1960-3-26 3 Contra Costa South Scenic Boulevard, Mt. Diablo. 182 Comment
  UCD33430  Limnanthes douglasii subsp. rosea Beecher Crampton 1968-3-27 8238 Contra Costa Contra Costa County, S.E. corner of County, ca. 3.5 miles south of Byron. Comment
  POM311124  Limnanthes douglasii subsp. rosea Charles T. Mason Jr. 1949-3-17 1239 Contra Costa In a field along the Byron-Bethany road, 3.3 miles south of Byron. Comment
  CDA7773  Limnobium laevigatum Dan Darling 2007-12-13 PDR# 1426144 Contra Costa Antioch, Decker Island 0 Comment
  CDA39643  Limonium sinuatum D. G. Kelch 2011-10-23 11 .840B Contra Costa Carquinez Strait Region; Martinez Waterfront Park. Comment
  JEPS108386  Linanthus ambiguus David Gowen 2005-4-25 264 Contra Costa Mt. Diablo State Park. South east end of Prospectors Gap Rd., ca 0.3 mile NW of its junction with Ray Morgan Rd. Small area of serpentine outside of the park boundary. Comment
  UC1607629  Linanthus bicolor Barbara Ertter, Lynne Hosley 1993-4-17 11509 Contra Costa ca 10 air mi n Livermore (hills in lee of Mt. Diablo, e side of open meadow along Blue Oak trail); Morgan Territory 609 Comment
  UC727781  Linanthus bicolor Milo S. Baker 1946-4-20 11332 Contra Costa s of Clayton (summit) Comment
  UC1047918  Linanthus liniflorus Kay H. Beach 1941-4-30 1083 Contra Costa near Byron Hot Springs Station Comment
  UC1795771  Linum bienne Barbara Ertter, Brad Olson 1994-5-7 12746 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  UC1819058  Linum bienne Barbara Ertter, Rich Rabeler 1994-6-6 12818 Contra Costa Point Isabel in south Richmond; black cinders on old railroad bed north of Costco; landfill. Comment
  CAS-BOT-BC430613  Lithophragma affine Lewis S. Rose 1933-4-17 33099 Contra Costa Walnut Creek Comment
  UC11876  Lithophragma affine Jos. Burtt Davy 1901-4-21 6919 Contra Costa Wildcat Canyon Comment
  UC692420  Lithophragma affine Mary L. Bowerman 1933-4-15 1852 Contra Costa canyon S of Arroyo del Cerro Comment
  SEINET3817186 Image available Lithophragma affine Lewis S. Rose 1933-4-17 33099 Contra Costa Walnut Creek. Comment
  RSA8363  Lithophragma affine subsp. affine L. S. Rose 1933-4-17 33099 Contra Costa Walnut Creek. Comment
  CDA25419  Lithophragma heterophyllum A. G. Murdock, D. G. Kelch 2004-4-3 257 Contra Costa Vaca Canyon. Comment
  POM142563  Lithophragma heterophyllum C. F. Baker 1903-4-28 2811 Contra Costa Mitchell s Canyon, Mt. Diablo. Comment
  UC2028077  Lithophragma heterophyllum Barbara Ertter, Tony Morosco 1998-4-12 15997 Contra Costa Base of Mount Olympia on north side of Mount Diablo, talus above quarry NE of Olympia Trail. Comment
  UC912409  Logfia filaginoides Herbert L. Mason 1928-4-29 4426 Contra Costa Mount Diablo Comment
  UC697122  Lolium multiflorum Mary L. Bowerman 1938-5-25 3630 Contra Costa by North Road, Arroyo del Cerro Mount Diablo (Mount Diablo); , North Road 109 Comment
  UC1948973  Lolium perenne William J. Ferlatte, L. Maynard Moe 1970-4-27 1248 Contra Costa San Francisco Bay: Red Rock Island Comment
  POM206078  Lolium perenne subsp. multiflorum Jos Burtt Davy 1897-9-9 1674 Contra Costa Stege Comment
  RSA641386  Lolium perenne subsp. multiflorum Terry J. O'Brien 1999-07 s.n. Contra Costa San Francisco Bay Area. eastern Richmond along boundary with EL Cerrito. Mira Vista Park adjacent Mira Vista School 91 Comment
  UCD66482  Lolium temulentum Beecher Crampton 1956-5-14 3408 Contra Costa Southern boundary of Mt. Diablo State Park. Comment
  CAS-BOT-BC271056  Lolium temulentum Mary L. Bowerman 1933-5-17 2096 Contra Costa Branch of Curry Canyon due south of Olafsons barn, Mount Diablo Comment
  CHSC69467  Lomatium caruifolium var. caruifolium James D. Jokerst 1989-5-28 3056 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  UC659030  Lomatium caruifolium var. caruifolium Mildred E. Mathias 1937-4-11 1165 Contra Costa 3 mi. s. Byron Comment
  UC21279  Lomatium dasycarpum subsp. dasycarpum H. M. Hall 1901-4-5 1747 Contra Costa Mt. Diablo 640 Comment
  UC691426  Lomatium macrocarpum Mary L. Bowerman 1935-4-17 2837 Contra Costa w. rd. 2 mi. from entrance Mt. Diablo (ridge w. of chaparral) 289 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
  UC691771  Lomatium macrocarpum Mary L. Bowerman 1935-5-1 2945 Contra Costa w. rd. 4.4 mi. from entrance Mt. Diablo 381 Comment
  JEPS111595  Lomatium utriculatum A. G. Murdock 2004-3-19 235 Contra Costa McEwen Road 150 Comment
  UC1123054  Lomatium utriculatum C. M. Belshaw 1936-5-12 2105 Contra Costa 1 mi S of Mt. Diablo summit (Tassajero[sic] Road) 335 Comment
  UC1051201  Lonicera etrusca N. Floy Bracelin 1944-6-4 2245 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS12847  Lonicera hispidula var. vacillans W. L. Jepson 1894-10-1 Contra Costa towards Redwood Peak; Moraga Valley Comment
Read comments
Aug 9 2011
  CAS-BOT-BC241458  Lonicera involucrata var. ledebourii Ira L. Wiggins 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
  UC1051220  Lonicera pileata f. yunnanensis N. Floy Bracelin 1942-9-27 1183 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UCD137367  Lonicera subspicata M. Wiesendanger 1925-5-1 1480 Contra Costa San Miguel. Comment
  JEPS12855  Lonicera subspicata var. denudata Mary L. Bowerman 1932-10-16 1634 Contra Costa ridge e Median Ridge; Mount Diablo, Donner Canyon basin 487 Comment
  UC1050946  Lonicera thibetica N. Floy Bracelin 1942-8-9 2245 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  RSA720794  Lotus corniculatus Barbara J. Ertter, Kristin Ertter 1995-7-11 14473 Contra Costa Sulfur Srping on Pine Cr., Diablo Foothills Regional Park SWof Walnut Creek. 122 Comment
  SD241813  Lotus corniculatus Barbara Ertter, Kristin Ertter 1995-7-11 14473 Contra Costa Sulfur Spring on Pine Cr, Diablo Foothills Regional Park SW of Walnut Creek 121 Comment
  UC775175  Lotus denticulatus Herbert L. Mason 1945-5-31 Contra Costa nw of St. Mary's College; Cashion Canyon Comment
  UC1745430  Lotus humistratus Annetta M. Carter, Leo Bowerman 1935-6-1 878 Contra Costa Mt. Diablo. S-facing slope on W side of main peak. 975 Comment
  JEPS55504  Lotus junceus A. M. Ottley 1920-6-5 777 Contra Costa Moraga Ridge Comment
  UC692527  Lotus micranthus Mary L. Bowerman 1932-4-9 1325 Contra Costa Inner Black Hills, s spur on meridian Mount Diablo Comment
  JEPS25107  Lotus scoparius G. Thomas Robbins 1959-4-12 3983 Contra Costa about 0.5 mi sw junction of Hoffmann Blvd. and S. 25th St. 6 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
  RSA90338  Lotus scoparius var. scoparius E. E. Stanford 1930-5-24 1518 Contra Costa Marsh Creek Canyon. Comment
  CAS-BOT-BC478075  Ludwigia Walter Knight 1978-9-28 3277 Contra Costa Browns Island, Botany Cove Comment
  CAS-BOT-BC478118  Ludwigia Walter Knight 1978-10-11 3325 Contra Costa Browns Island, Point Emmet Comment
  UC201036  Lupinus Katharine Brandegee 1918-6-5 Contra Costa Richmond Annex Comment
  UC15822  Lupinus albifrons W. H. Brewer 1862-5-1 1038 Contra Costa s Camp 69; s of Camp 69 Comment
  SEINET11071663 Image available Lupinus albifrons Lewis S. Rose 1935-5-16 35162 Contra Costa Mt. Diablo Comment
  UC692573  Lupinus albifrons var. albifrons Mary L. Bowerman 1931-4-5 676 Contra Costa below Gregory Ranch Mount Diablo (Mt. Diablo) Comment
  CAS-BOT-BC201379  Lupinus albifrons var. albifrons John H. Thomas 1953-4-25 3007 Contra Costa Antioch Sand Hills along San Joaquin River, 0.2 miles west of Antioch Bridge Comment
  UC1795854  Lupinus albifrons var. albifrons Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14594 Contra Costa Sycamore Spring Trail off Prospectors Gap Rd., east side Mt. Diablo. 640 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
  UC1197281  Lupinus bicolor J. P. Tracy 1900-3-24 624 Contra Costa Dry Hill Point Richmond (Point Richmond); Region about San Francisco Bay, Point Richmond 15 Comment
  UC1300886  Lupinus bicolor Helen K. Sharsmith 1963-4-7 5292 Contra Costa near Oakley (s of Antioch); , near Oakley 15 Comment
  UC75240  Lupinus bicolor C. F. Baker 1903-4-25 2822 Contra Costa Antioch Comment
  JEPS111069  Lupinus bicolor Lee Echols 2003-4-1 s.n. Contra Costa N of Lark Drive in SE portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  UCD107322  Lupinus bicolor L. S. Smith 1916-5-10 s.n. Contra Costa Grand View Terrace - m. Richmond. Comment
  UC1073380  Lupinus bicolor subsp. umbellatus George B. Rossbach 1955-3-13 323 Contra Costa just e Antioch (along San Joaquin River); , just e of Antioch Comment
  CAS-BOT-BC187864  Lupinus chamissonis D. E. Breedlove 1963-3-29 4281 Contra Costa Sacramento River at Antioch Comment
  SEINET10937078  Lupinus densiflorus Frenkel 1964-4-18 FRENKEL 425 Contra Costa 2.1 mi. I of danville on tassajara rd. 130 Comment
  UCD107777  Lupinus formosus L. S. Smith 1916-5-10 s.n. Contra Costa Grand View Terrace - San Pablo. Comment
  UC1562561  Lupinus microcarpus var. densiflorus Barbara Ertter with Elizabeth Neese 1988-4-24 7450 Contra Costa n of e-w part of Black Diamond Trail sw Antioch (Black Diamond Mines Regional Preserve); Black Diamond Mines Regional Preserve 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
  UCR197907  Lupinus microcarpus var. densiflorus Beecher Crampton 1950-4-22 525 Contra Costa Above site of Judsonville, west of old Empire mine 183 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
  UC201023  Lupinus microcarpus var. microcarpus Katharine Brandegee June 1918 Contra Costa El Dorado St. Richmond Annex (Richmond Annex); , El Dorado St. 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
  UCD109246  Lupinus nanus L. S. Smith 1916-5-10 s.n. Contra Costa Grand View Terrace - m. Richmond. Comment
  UC2028075  Lupinus pachylobus Barbara Ertter, Tony Morosco 1998-4-12 16002 Contra Costa Base of Mount Olympia on north side of Mount Diablo, NE of Olympia Trail. Comment
  UC2070441  Lupinus pachylobus Barbara Ertter with Linda Vorobik 2002-4-6 17823 Contra Costa South side of Mount Diablo, roadside NW of Curry Point trailhead. Comment
  SEINET12162895  Lupinus propinquus W. Knight, Knight, I. 1982-1 4459 Contra Costa Tilden Reginoal Park, Berkeley, Comment
  UC691941  Luzula comosa Mary L. Bowerman 1931-2-28 524 Contra Costa n slope Rock City Ridge (= Fossil Ridge, Mount Diablo, near Rock City); Mount Diablo, Rock City Ridge nr Rock City, = Fossil Ridge Comment
  JEPS120275  Lychnis coronaria Barbara Ertter 2012-10-27 21293 Contra Costa entrance gate to Golf Course Trail in Tilden Regional Park 370 Comment
  JEPS107094  Lycopus americanus Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10876 Contra Costa Dow Wetlands Preserve, just w. Antioch marina, e. end of marsh across from marina Comment
  UC1619951  Lycopus americanus Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10876 Contra Costa just w. Antioch marina (Dow Wetlands Preserve, e. end of marsh across from marina); Dow Wetlands Preserve Comment
  UC692633  Lythrum californicum Mary L. Bowerman 1932-11-26 1672 Contra Costa on n side of road between Sheep Camp Spring and Boulevard Spring (Mount Diablo, Patens Spring); Mount Diablo, Patens Spring Comment
  UC692686  Lythrum hyssopifolia Mary L. Bowerman 1933-8-2 2391 Contra Costa Mount Diablo, Sheep Camp Spring Sheep Camp Spring; Mount Diablo, Sheep Camp Spring Comment
  UC5897  Maclura pomifera W. G. Klee June 1880 Contra Costa road to Walnut Creek Comment
  JEPS100179  Madia elegans A. Langston 2003-7-9 AL 62 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS99516  Madia elegans subsp. densifolia Mary Bowerman 1978-7-9 Contra Costa Mount Diablo, Russelman Park Comment
  CDA8239  Madia exigua D. G. Kelch, A. G. Murdock 2004-5-9 4 .205 Contra Costa Carquinez Strait Region; Crockett - Upper Edwards Canyon above Crockett Boulevard. Comment
  UC697171  Madia exigua Mary L. Bowerman 1931-5-19 867 Contra Costa Donner Canyon trail Mount Diablo 274 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
  UC517457  Madia gracilis John Thomas Howell 1933-5-14 11266 Contra Costa hills e St. Mary's College Comment
  UC697158  Madia gracilis Mary L. Bowerman 1933-6-3 2241 Contra Costa Ransom Point Ridge Mount Diablo Comment
  UC2028314  Madia gracilis Barbara Ertter, Susan D'Alcamo 1998-6-12 16162 Contra Costa Summit Road to top of Mount Diablo. Comment
  POM267781  Madia gracilis subsp. gracilis D. D. Keck 1941-6-5 5309 Contra Costa Berkeley Hills, Fish Creek Road 1/4 mile W of E portal of Broadway Tunnel. 335 Comment
  POM54304  Madia radiata Katherine Brandegee 1908-4-9 s.n. Contra Costa Borders of cultivated fields near Antioch Comment
  SD8607  Madia radiata Brandegee Apr 1889 Contra Costa Antioch Comment
Read comments
Jan 9 2007
  CAS-BOT-BC343586  Madia sativa L. R. Abrams 1916-7-1 5734 Contra Costa Martinez Comment
  JEPS75563  Madia sativa P. F. Yorks 1974-5-19 167 Contra Costa ca 1.0 km s Bear Creek Road (on Hampton Road in Hampton Road Natural Reserve) 180 Comment
  UC1555376  Madia sativa Jerry Powell 1988-6-28 1540 Contra Costa area along railroad west Richmond, Point Molate Comment
  CAS-BOT-BC345453  Malacothrix coulteri Alice Eastwood 1914-3-14 3816 Contra Costa Byron Springs Comment
  UC92223  Malacothrix floccifera T. S. Brandegee 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
  JEPS111543  Malva nicaeensis D. G. Kelch 2004-5-21 04 .220 Contra Costa Crockett - Edwards Canyon Edwards Creek EBRP Staging Area near Greenhouse 24 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
  POM300651  Malva nicaeensis Mary L. Bowerman 1938-5-25 3631 Contra Costa North Road at Arroyo del Cerro: Weedy place where bank joins first bottom (7 ft. from stream). 110 Comment
  UC2032804 Image available Malva pseudolavatera Doran, Andrew Scott 2012-3-20 674 Contra Costa Brooks island loading dock, North side of island. Comment
  CAS-BOT-BC8186  Malvastrum howellii John Thomas Howell 1931-5-12 6470 Contra Costa Nortonville Comment
  CHSC97871  Malvella leprosa D. G. Kelch 2006-7-14 06 .332 Contra Costa Between Rte 4 and Carbon Rd. E Rodeo. 24 Comment
  OBI12334  Malvella leprosa Robert F. Hoover 1966-8-31 9944 Contra Costa 1.5 mi E of Danville on Tassajara rd Comment
  UC2029012  Malvella leprosa Barbara Ertter with Dan Norris 1999-11-14 16849 Contra Costa Black Diamond Mines Regional Preserve, south of parking area for Somersville townsite. Comment
  UC1948944  Marah fabacea William J. Ferlatte, L. Maynard Moe 1970-4-27 1230 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC692642  Marah fabacea Mary L. Bowerman 1931-4-4 634 Contra Costa 2 mi by road North Gate; Mount Diablo 228 Comment
  SEINET5560693  Marah oregana H. S. Gentry 1931-1 58 Contra Costa Collected near Buckle Point, Mount Diablo. Comment
  UCD164887  Matricaria discoidea Henry House 1995-4-30 1995- 8 Contra Costa About 1 km west of Walnut Blvd., ca. 0.5 km south of Marsh Creek Rd. 60 Comment
  UC1606303  Medicago arabica Barbara Ertter, Chris Thayer 1993-5-7 11699 Contra Costa on Wildcat Canyon Rd. 1/2 mi e Inspiration Point (e of Tilden Park); East Bay Municipal Utilities District land, Hopkins Spring 304 Comment
  JEPS75470  Medicago polymorpha P. F. Yorks 1975-5-15 395 -2 Contra Costa on Hampton Rd ca 1.5 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Preserve Comment
  CAS-BOT-BC271218  Melica californica E. E. Stanford 1930-5-24 1516 Contra Costa Marsh Creek Canyon Comment
  RSA762310  Melica californica William J. Ferlatte, L. M. Moe 1970-4-27 1260 Contra Costa San Francisco Bay, Red Rock Island. Comment
  SEINET3383301 Image available Melica californica Mary Bowerman 1991-5-21 Contra Costa Mount Diablo. Jim White Trail(Deer Flat Rd) South side of Juniper Moses Rock Trail near Deer Flat junction Comment
  UC692469  Melica californica Mary L. Bowerman 1932-4-16 1349 Contra Costa Eagle Point Mt Diablo (Mt Diablo) Comment
  SEINET186052 Image available Melica imperfecta Virginia E. Long 1933-6-14 221 a Contra Costa Mt. Diablo On slope SE-E along first west fork rom Curry Creek Trail. 335 Comment
  UC1153843  Melica imperfecta Beecher Crampton 1956-5-14 3405 Contra Costa s boundary Mt. Diablo State Park Comment
  UC1784152  Melica imperfecta Virginia E. Long 1933-6-14 221 a Contra Costa Mount Diablo, on slope SE-E, along first west fork from Curry Creek trail Comment
  UC585495  Melica imperfecta Virginia E. Long 1933-6-14 221 a Contra Costa sse along first w fork Curry Creek trail; Mt. Diablo Comment
  UCD87871  Melica imperfecta P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CAS-BOT-BC262507  Melica torreyana Mary L. Bowerman 1933-5-9 2050 Contra Costa Mount Diablo. Mountain House Canyon 670 Comment
  RSA762303  Melica torreyana William J. Ferlatte, L. M. Moe 1970-4-27 1228 Contra Costa San Francisco Bay, Red Rock Island. Comment
  UC691224  Melica torreyana Mary L. Bowerman 1933-4-26 1935 a Contra Costa Perkins Canyon branch between the main e ridge of North Peak and ridge to its south (canyon se from North Peak) Mt. Diablo 487 Comment
  JEPS112336  Melilotus indicus Dean G. Kelch and Andrew G. Murdock 2004-5-9 04 .207 Contra Costa Upper Edwards Canyon, Crockett, CA Contra Costa County, CA above Crockett Blvd. Comment
  UC651294  Melilotus indicus Ira L. Wiggins 1930-4-18 4599 Contra Costa Jersey Island Comment
  UC2027800  Mentha aquatica Barbara Ertter 1996-9-19 15292 Contra Costa Antioch Marina, edge of marsh near parking lot. Comment
  UC19565  Mentzelia affinis J. Burtt Davy 1895-4-7 918 Contra Costa Antioch Comment
  JEPS42758  Mentzelia dispersa W. L. Jepson 1921-5-22 9202 Contra Costa Mt. Diablo 914 Comment
  UC692628  Mentzelia micrantha Mary L. Bowerman 1933-5-25 2186 Contra Costa west end of south face (Gully); Mount Diablo, Oyster Ridge 502 Comment
  SBBG2832  Micranthes californica J. M. Tucker 1946-3-24 1389 Contra Costa hills between Nortonville and Somersville Comment
  UCD16073  Microlepia strigosa Glen Holstein 1988-2-12 s. n. Contra Costa California. Contra Costa County: City of Danville. Comment
  UCD32380  Micropus californicus Beecher Crampton 1950-4-22 521 Contra Costa above site of Judsonville, above old Empire Coal Mine. 152 Comment
  CDA8378  Micropus californicus var. californicus D. G. Kelch, A. G. Murdock 2004-4-25 4 .125 Contra Costa Carquinez Strait Region; Martinez - West: Ozol Rock and Scenic Drive. Hill southwest of large cottonwood. West of Martinez at gated end of Scenic Drive. Comment
  JEPS40631  Micropus californicus var. californicus W. L. Jepson 1922-5-23 9664 Contra Costa Mt. Diablo Comment
  JEPS49066  Micropus californicus var. californicus Lewis S. Rose 1966-4-22 66031 Contra Costa n slope of Mt. Diablo; Donner Canyon, Clayton Comment
  UC691827  Micropus californicus var. californicus Mary L. Bowerman 1932-4-16 1335 Contra Costa near w branch Donner Canyon; Mount Diablo Comment
  RSA721204  Micropus californicus var. californicus Barbara Ertter, Mary Bowerman, et al. 1995-5-7 14050 Contra Costa Three-Springs Trail on NE side of Mt. Diablo SE of Clayton 305 Comment
  UC2028976  Micropus californicus var. californicus Barbara Ertter with Kevin Hintsa 2000-5-16 17023 Contra Costa Rock City area on SSW side of Mount Diablo, East Fossil Ridge Trail. Comment
  CAS-BOT-BC348648  Micropus californicus var. subvestitus Brandegee No date on label s.n. Contra Costa Antioch 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
  UC1795682  Microseris douglasii subsp. douglasii Barbara Ertter, Dale Sanders, Dan Norris 1994-3-26 12336 a Contra Costa Peyton Hill east of I-680 east of Martinez, south of Waterfront Road Comment
  UC92107  Microseris douglasii subsp. douglasii M. K. Curran 1886-1 Contra Costa Antioch Comment
  RSA720815  Microseris douglasii subsp. douglasii Barbara Ertter, Dale Sanders, Dan Norris 1994-3-26 12336 -a Contra Costa Peyton Hill east of I-680 east of Martinez, south of Waterfront Road Comment
  UC1818950  Microseris douglasii subsp. douglasii Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14240 Contra Costa S side Mount Diablo, edge of open meadow in flats near head of Curry Creek along road to Sheepherders Springs from Sloan Road 426 Comment
  UC768670  Microseris douglasii subsp. tenella Robert F. Hoover 1939-4-25 4062 Contra Costa Richmond Hills Comment
  CAS-BOT-BC7493  Microseris parvula M. K. Curran s.n. Contra Costa Antioch Comment
  UC691442  Microseris sylvatica Mary L. Bowerman 1931-5-2 790 Contra Costa foot of Eagle Point ridge Mount Diablo Comment
  UC1055920  Mimetanthe pilosa N. Floy Bracelin 1944-9-9 2799 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  UC103640  Mimulus aurantiacus var. aurantiacus T. S. Brandegee May 1889 Contra Costa Antioch Comment
  UC26691  Mimulus aurantiacus var. aurantiacus Ivar Tidestrom June 1895 Contra Costa Crockett Comment
  UC943784  Mimulus aurantiacus var. aurantiacus H. E. McMinn 1945-2-27 5455 Contra Costa along road near base Mt. Diablo Comment
  UC1050851  Mimulus guttatus N. Floy Bracelin 1941-5-25 1321 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  SEINET4095730  Mimulus guttatus M. W. Garcia 1960-1 60049 Contra Costa Back of Tilden Park. 53 Comment
  UC103726  Mimulus latidens M. K. Curran May 1886 Contra Costa Antioch Comment
  UC193602  Mimulus latidens M. K. Curran May 1886 Contra Costa Antioch Comment
  UC886254  Mimulus latidens Lewis S. Rose 1940-4-11 40184 Contra Costa 3 mi w Byron 30 Comment
  UC691620  Mimulus rattanii Mary L. Bowerman 1935-6-1 3111 Contra Costa largest ridge between Ransom Point ridge and Mitchell-Pine divide; Mount Diablo 1082 Comment
  CAS-BOT-BC388584  Minuartia douglasii Alice Eastwood 1915-5-30 4512 Contra Costa Mt. Diablo Comment
  UC692295  Minuartia douglasii Mary L. Bowerman 1931-4-4 661 Contra Costa Turtle Rock Mount Diablo 447 Comment
  UC691409  Monardella douglasii Mary L. Bowerman 1933-6-21 2327 Contra Costa slightly s Bilharan Lodge; Mount Diablo, Donner Canyon Comment
  UC2027752  Monardella douglasii subsp. douglasii Barbara Ertter with Mary Bowerman 1996-11-1 15408 Contra Costa North base of Mount Diablo, north end of Hetherington Trail along Donner Creek. Comment
  SBBG27321  Monolopia gracilens L. S. Rose 1935-5-16 35166 Contra Costa Mt Diablo Comment
  CAS-BOT-BC349608  Monolopia major Ethel Crum 1939-3-19 2083 Contra Costa Two miles west of Byron 45 Comment
  CAS-BOT-BC349610  Monolopia major Ethel Crum 1936-4-6 1741 Contra Costa Two miles west of Byron 45 Comment
  CAS-BOT-BC349611  Monolopia major Ethel Crum 1936-4-6 1741 Contra Costa Two miles west of Byron 45 Comment
  JEPS68951  Monolopia major Edward Lee 1935-3-10 1280 Contra Costa Donovan Road West watershed of Kirker Creek, Kirker Pass (se-facing hillside) Comment
  UC468897  Monolopia major V. King Chesnut 1883-1 Contra Costa Moraga Valley Comment
  UC691684  Monolopia major Mary L. Bowerman 1932-4-27 1365 Contra Costa ridge w Riggs Canyon (s-face of Oyster Ridge); Mount Diablo, Oyster Ridge Comment
  UC697148  Monolopia major Mary L. Bowerman 1933-5-25 2196 Contra Costa e of saddle Osyter Ridge; Mount Diablo 396 Comment
  UC90423  Monolopia major K. Brandegee May 1883 Contra Costa Antioch Comment
  CAS-BOT-BC349612  Monolopia major Brandegee No date on label s.n. Contra Costa Antioch Comment
  CAS-BOT-BC349615  Monolopia major Dr. A. Kellogg; W. G. W. Harford 1969-4-8 508 Contra Costa Antioch Comment
  RSA289444  Monolopia major Dale E. Johnson 1975-4-12 188 Contra Costa West of Byron; 2.6 km (1.6 miles) west of Byron Highway (Brentwood-Bethany road) on Camino Diablo; just west of road summit; near sand quarry Comment
  CAS-BOT-BC444826  Montia fontana Mary L. Bowerman 1939-3-31 3736 Contra Costa Mount Diablo. Spring in bend of road to Barbecue Terrace (off South Road) Comment
  POM300988  Montia fontana subsp. variabilis Mary L. Bowerman 1939-3-31 3736 Contra Costa Spring in bend of road to Barbecue Terrace ( off S road). Comment
  CAS-BOT-BC83295  Myosurus minimus Peter H. Raven; D. Stone; H. L. Mason; R. Ornduff; et al. 1957-4-4 10584 Contra Costa 3.0 miles south of Byron. Comment
  CAS-BOT-BC83297  Myosurus minimus Peter H. Raven; D. Stone; H. L. Mason; R. Ornduff; et al. 1957-4-4 10583 Contra Costa 3.0 miles south of Byron. Comment
  UC1101334  Myosurus minimus Herbert L. Mason 1952-4-26 14268 Contra Costa 3.5 mi s of Byron Comment
  UC1101329  Myosurus sessilis Herbert L. Mason 1952-4-26 14272 Contra Costa 3.5 mi s of Byron Comment
  UC1738117  Myosurus sessilis D. E. Stone 1955-8-26 8 -2 Contra Costa 3 mi S of Byron ( on road to Herdlyn) Comment
  UCD96287  Myosurus sessilis H. L. Mason 1952-4-14 14264 Contra Costa 3.5 miles south of Byron. Comment
  UCD18346  Myriophyllum sibiricum M. R. Bell 1950-10-9 s.n. Contra Costa near Concord, from stock pond on farm of E.J. Mangini. Comment
  UC2042751  Myriophyllum verticillatum Barbara Ertter with Lynne Hosley 1991-9-22 10822 Contra Costa Lafayette Reservoir in hills SW of Lafayette, in water at E end of dam. Comment
  CHSC106698  Najas guadalupensis Barbara Ertter; Brad Olson 1991-9-28 10838 Contra Costa San Pablo Reservoir between Orinda and El Sobrante, in shallow water at S end of reservoir. 91 Comment
  OBI72036  Najas guadalupensis Barbara Ertter, Brad Olson 1991-9-28 10838 Contra Costa San Pablo Reservoir between Orinda and El Sobrante 91 Comment
  UC2028567  Narcissus pseudonarcissus Barbara Ertter 1997-2-11 15451 Contra Costa North side of Mount Diablo, Donner Cabin site on Donner Canyon Road. Comment
  CDA31836  Nassella lepida D. G. Kelch 2008-4-24 8 .062 Contra Costa Carquinez Strait; W of Ozol Rock ~2 km W of Martinez. Comment
  POM300686  Nassella pulchra Mary L. Bowerman 1933-5-25 2191 Contra Costa Alamo Canyon; above Wilson's barn. Oyster Ridge, west end of south face. Comment
Read comments
Nov 1 2011
  UC691269  Nassella pulchra Mary L. Bowerman 1933-5-8 2030 Contra Costa n Rock City (s-facing slope); Mount Diablo Comment
  UCD87464  Nassella pulchra Beecher Crampton 1956-5-14 3388 Contra Costa 6.7 miles southwest of city of Antioch, along ridge between old coal mining towns of Somersville and Nortonville. Comment
  UCD87465  Nassella pulchra Beecher Crampton 1956-5-14 3403 Contra Costa Southeastern Mount Diablo, headwaters of Marsh Creek. 640 Comment
  UC30207  Navarretia cotulifolia W. H. Brewer 1862-5-19 1110 Contra Costa n of Kirker's Pass Comment
  SEINET10811232 Image available Navarretia gowenii D. Gowen 2005-5-25 Gowen 390 Contra Costa Lime Ridge Open Space on N. side. Just SE of one of the quarries. Clay soil. 183 Comment
  UC703025  Navarretia mellita John Thomas Howell 1942-7-19 17045 Contra Costa ne of Deer Flat; Mt. Diablo Comment
  CAS-BOT-BC233595  Navarretia pubescens Brandegee No date on label s.n. Contra Costa Antioch Comment
  UC2042983  Navarretia pubescens Barbara Ertter with Dan Norris 1998-6-18 16216 Contra Costa Rock City area on south side of Mount Diablo, trail to Artist Point Comment
  UC30206  Navarretia pubescens W. H. Brewer 1862-5-19 1113 Contra Costa n of Kirkers Pass Comment
  UC691643  Navarretia pubescens Mary L. Bowerman 1930-6-5 259 Contra Costa 5.8 mi from West Road (= North Rd) entrance; Mount Diablo 457 Comment
  JEPS3141  Nemophila heterophylla Mary L. Bowerman 1930-6-10 308 Contra Costa Meridian Peak Summit , Meridian Peak summit (Mount Diablo) Comment
  JEPS49756  Nemophila heterophylla Rimo Bacigalupi, and Alice Howard, and Paul Hutchison 1967-3-29 9220 Contra Costa on w slope Las Trampas Ridge Upper reaches Bolinger Canyon, w slope Las Trampas Ridge (Upper reaches of Bolinger Canyon) 381 Comment
  UC1069147  Nemophila heterophylla H. S. Yates 1936-3-14 5359 Contra Costa Marsh Creek Mount Diablo Quad., Marsh Creek Comment
  UC24164  Nemophila heterophylla J. Burtt Davy 1895-4-7 907 Contra Costa Antioch Comment
  UC24165  Nemophila heterophylla J. Burtt Davy 1895-4-7 916 Contra Costa Antioch (dry hillsides) Antioch Comment
  UC517550  Nemophila heterophylla John Thomas Howell 1926-3-7 1659 Contra Costa Mt. Diablo near toll gate Mt. Diablo Comment
  UC67126  Nemophila heterophylla Harley P. Chandler 1901-4-5 985 Contra Costa summit Mt. Diablo Comment
  UC67127  Nemophila heterophylla Harley P. Chandler 1901-3-22 850 Contra Costa between Martinez and Port Costa (Region of San Francisco Bay); , bet Martinez and Port Costa Comment
  UC691698  Nemophila heterophylla Mary L. Bowerman 1930-6-10 308 Contra Costa summit Mount Diablo; Mount Diablo Comment
  UC691707  Nemophila heterophylla Mary L. Bowerman 1931-5-7 806 Contra Costa n of crest Mount Diablo (North Peak Ridge, Mount Diablo); , North Peak Ridge Comment
  POM65297  Nemophila heterophylla C. F. Baker 1903-4-28 2812 Contra Costa Mitchell s Canyon, Mt. Diablo. 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
  UC592190  Nemophila menziesii H. L. Mason 1932-3-20 6837 Contra Costa Antioch sand hills Comment
  UC592126  Nemophila pedunculata H. L. Mason 1932-3-20 6841 Contra Costa Antioch sand hills Comment
  UC596370  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
  POM181437  Nicotiana glauca I. L. Wiggins 1930-4-18 4604 Contra Costa East end of Jersey Island. Comment
  UC1084399  Nuttallanthus texanus G. Thomas Robbins 1937-4-17 132 Contra Costa near Point Richmond Comment
  UC691632  Nuttallanthus texanus Mary L. Bowerman 1938-6-2 3653 Contra Costa Mount Diablo, Dan Cook Canyon, 100 yards n of camp (C.C.C.) Dan Cook Canyon; Mount Diablo, Dan Cook Canyon Comment
  CAS-BOT-BC140363  Oemleria cerasiformis Frank W. Gould 1940-3-2 873 Contra Costa North side of Grizzly Peak 289 Comment
  JEPS112083  Oemleria cerasiformis D. G. Kelch 2004-3-12 04 .21 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road 130 Comment
  UCSB25483  Oemleria cerasiformis Rieser, D. 1966-4-5 Contra Costa Tarry In., 0.8 mi. north from Sleepy Hollow Road, Orinda. 304 Comment
  UC1618330  Oenothera curtiflora Barbara Ertter 1991-9-22 10827 Contra Costa sw El Cerrito; Point Isabel Regional Shoreline Comment
  CDA21549  Oenothera deltoides subsp. cognata D. G. Kelch 2000-9-4 0 .145 Contra Costa CA Delta; N Oakley. Comment
  POM355601  Oenothera deltoides subsp. cognata H. de Forest 1930-4-6 s.n. Contra Costa Near mouth of San Joaquin River Comment
  CAS-BOT-BC171598  Oenothera deltoides subsp. howellii Lewis S. Rose 1933-4-17 33088 Contra Costa Antioch Comment
  RSA119391  Oenothera deltoides subsp. howellii William M. Klein 1958-6-9 442 Contra Costa Sandhills N of Antoch, along the San Joaquin River Channel. 2 Comment
  SEINET7719109  Oenothera micrantha Chesnut, Drew 1889-4-18 Contra Costa Antioch Comment
  SEINET3840787  Olea europaea Unknown 2006-6-23 6 .322 Contra Costa West Valona, West of Zampa Bridge above San Pablo avenue, along small stream draining north into the Western end of the Carquinez Strait 91 Comment
  JEPS127839  Orobanche fasciculata Adam C. Schneider 2014-5-15 468 Contra Costa Mt. Diablo State Park. Along summit road, just below Juniper Campground. Comment
  JEPS102913  Orobanche pinorum Christopher Thayer 1995-6-27 Contra Costa Mount Diablo State Park, below Prospectors Gap along trail to Murchio Gap Comment
  JEPS99963  Orobanche uniflora G. Smick 2003-4-8 GAS 128 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2027723  Orobanche uniflora Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15511 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  JEPS10809  Orobanche uniflora subsp. occidentalis W. L. Jepson 1925-4-26 10693 Contra Costa Mt. Diablo. Comment
Read comments
Sep 13 2017
  JEPS10840  Orobanche uniflora subsp. occidentalis Mary L. Bowerman 1935-4-22 2895 Contra Costa Ridge west of Pioneer Road (west of Old Stage Road); Grassy hillside with northwest exposure. Comment
  UC27898  Orobanche uniflora subsp. occidentalis J. Burtt Davy 1895-4-13 1004 Contra Costa Lafayette. Comment
  UC691748  Orobanche uniflora subsp. occidentalis Mary L. Bowerman 1935-4-22 2895 Contra Costa Ridge west of Pioneer Road (west of Old State Road); Grassy hillside with northwest exposure. Comment
  UC1076297  Orobanche vallicola Herbert L. Mason 1929-9-21 5432 Contra Costa 3 mi above Clayton (Marsh Creek Road); Marsh Creek Road Comment
  SEINET3821123 Image available Orthocarpus erianthus Lewis S. Rose 1932-3-26 32115 Contra Costa Open hillsides, Nortonville. Comment
  RSA516499  Orthocarpus erianthus Robert F. Hoover 1938-2-27 2783 Contra Costa Danville. Comment
  SEINET10549718  Orthocarpus purpurascens John T. Middleton 1936-4-18 Middleton 134 Contra Costa Deer valley. Comment
  UC1555267  Osmorhiza berteroi R. C. Stebbins 1988-5-25 Contra Costa Memory and Packrat trails Tilden Park, Tilden Nature Area Comment
  UC1618306  Osmorhiza berteroi Barbara Ertter with Travis Columbus 1990-6-10 9108 Contra Costa near stream crossing on Spengler Creek ne Briones Peak (ne corner of park, w of Pleasant Hill); Briones Regional Park, Briones Hills 182 Comment
  UC2062642  Osmorhiza brachypoda Barbara Ertter with Mike Park, David Gowen, and Victoria Seidman 2004-4-26 18371 Contra Costa Curry Canyon between Alder Creek and Rhine Canyon, south side of Mount Diablo. Comment
  CDA4721  Oxalis corniculata D. G. Kelch, A. G. Murdock 2005-5-23 5 .375 Contra Costa Carquinez Strait Region; Crockett - Crolona Heights. 6th Street at Lillian Street, Crockett. Comment
  SEINET920557  Oxalis corniculata August Hartman 1960-1 32 Contra Costa 2055 Carmel Drive, Concord. 22 Comment
  UC1051229  Pandorea jasminoides N. Floy Bracelin 1942-9-20 2301 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  SEINET10959961  Panicum capillare Barbara J. Ertter, Lincoln Constance 1995-6-16 Ertter 14262 Contra Costa East edge Dow Marsh on west side Antioch Marina, south side San Joaquin River in Delta area, mud on riprap. Comment
  HSC94231  Papaver heterophyllum C. Newberry 1994-4-30 7247 Contra Costa Mt. Diablo State Park, trail from Mitchell Canyon parking to Donner Creek 900 Comment
  SEINET183704  Papaver heterophyllum L. Constance 1938-4-5 2193 Contra Costa NW base of Mount Diablo, 6 miles SE of Walnut Creek, Coast Ranges. Comment
  SEINET4344382 Image available Parapholis incurva Barbara Ertter, Brad Olson 1994-5-7 12764 Contra Costa S. end Pt. Molate Beach Park W. of Richmond N. of San Rafael Bridge, edge of San Fransisco Bay Comment
  JEPS79630  Parvisedum pentandrum Edward Lee 1979-5-6 Contra Costa Mount Diablo, Lower Mitchell Canyon Lower Mitchell Canyon; Mount Diablo, Lower Mitchell Canyon Comment
  CAS-BOT-BC259647  Paspalum dilatatum John Thomas Howell 1954-9-5 30025 Contra Costa Marsh Creek Springs Park Comment
  CAS-BOT-BC259723  Paspalum distichum John Thomas Howell; Gordon H. True 1972-6-29 48941 Contra Costa Along Byron Hot Springs Road, SE of Byron Comment
  UC2028558  Paspalum distichum Barbara Ertter with Chris Thayer 1996-10-25 15366 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothill Regional Park. Comment
  CDA5088  Passiflora tarminiana Barbara Ertter 1999-9-17 16846 Contra Costa South edge of El Cerrito at northeast base of Albany Hill, edge of paved lot at southwest corner of junction San Pablo Avenue and Carlson Avenue, near Cerrito Creek. 0 Comment
  UC766190  Pectocarya pusilla R. F. Hoover 1938-5-4 3351 Contra Costa peak to the e Tassajero Creek Comment
  UCSB12518  Pedicularis densiflora Grah, Nancy 1962-4-14 Contra Costa 1.1 miles on Tappan Lane north of Tarry Lane, Orinda 243 Comment
  UCD123307  Pedicularis densiflora Robert C. Bechtel 1952-4-12 54 Contra Costa Mt. Diablo. Comment
  JEPS65608  Pediomelum californicum W. L. Jepson 1922-5-23 9657 Contra Costa near very summit Mt. Diablo 1170 Comment
  UC692690  Pediomelum californicum Mary L. Bowerman 1935-6-1 3114 Contra Costa summit Mount Diablo Mount Diablo, summit (between the one-way roads) Comment
  POM161363  Pediomelum californicum Rimo Bacigalupi 1926-4-30 1348 Contra Costa Summit of Mt Diablo. Comment
  RSA91021  Pediomelum californicum F. W. Peirson 1923-7-1 3618 Contra Costa Near summit of Mt. Diablo. Comment
  CDA42757  Pellaea andromedifolia A. G. Murdock 2004-4-3 247 Contra Costa Franklin Canyon - McHarry Ranch Road, near fire road entrance. Comment
  JEPS112051  Pellaea andromedifolia A. G. Murdock 2004-4-30 247 Contra Costa Franklin Canyon - McHarry Ranch Rd 126 Comment
  RSA686788  Pellaea andromedifolia Mark Morris 1929-03 14912 Contra Costa Mt. Diablo. Comment
  UC1874997  Pellaea andromedifolia A. G. Murdock 2004-2-13 1255 Contra Costa Martinez, McHarry Ranch Road, Franklin Canyon, at fire road entrance. Comment
  UC692118  Pellaea andromedifolia Mary L. Bowerman 1930-8-24 428 Contra Costa lower trail Mitchell Canyon; Mt Diablo 259 Comment
  JEPS15174  Penstemon centranthifolius C. M. Belshaw 1936-5-9 2081 Contra Costa near Plot 14 (Nortonville); Mt. Diablo Quad., Nortonville Comment
  UC41706  Penstemon centranthifolius J. Burtt Davy 1895-4-7 889 Contra Costa Antioch Comment
  POM224482  Penstemon centranthifolius L. S. Rose 1936-4-24 36158 Contra Costa 3 mi E of Antioch. 15 Comment
  RSA0027922  Penstemon heterophyllus subsp. purdyi Barbara J. Ertter 1998-4-4 15972 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, Quarry Hill. Comment
  JEPS7555  Penstemon heterophyllus var. heterophyllus Mary L. Bowerman 1935-6-15 3132 Contra Costa Flat (first bottom) where stream forks Mount Diablo, Mitchell Creek, Flat (first bottom) (Mitchell Creek, Mount Diablo) 640 Comment
  UC41765  Penstemon heterophyllus var. heterophyllus V. K. Chesnut Contra Costa Mt. Diablo Comment
  CAS-BOT-BC327987  Pentachaeta alsinoides John Thomas Howell 1931-5-12 6476 Contra Costa Nortonville Comment
  SBBG122848  Pentachaeta alsinoides B. Ertter, L. Schulteis 1995-4-27 14006 Contra Costa end of Arbolado Drive, Lime Ridge open space NW of Mt Diablo 121 Comment
  UC697212  Pentachaeta exilis Mary L. Bowerman 1931-4-4 670 Contra Costa w Turtle Rock; Mount Diablo Comment
  UC2029184  Pentagramma triangularis Barbara Ertter 1990-5-19 8999 Contra Costa Lafayette Ridge of Briones Regional Park N of Lafayette. Comment
  JEPS111088  Pentagramma triangularis subsp. triangularis Lee Echols 2003-3-17 s.n. Contra Costa N of Lark Drive in S portion of Danthonia grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  UC1354307  Perideridia californica T. I. Chuang, L. R. Heckard and R. Bacigalupi 1968-4-27 6437 Contra Costa Deer Flat Mt. Diablo Comment
  CAS-BOT-BC413778  Persicaria lapathifolia D. E. Breedlove 1969-10-18 16719 Contra Costa Along Alhambra Valley Road near junction with Bear Creek Road, SE of Pinole Comment
  UC2029086  Persicaria maculosa Barbara Ertter 2000-7-16 17396 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park. Comment
  JEPS108289  Phacelia bolanderi David Gowen 2005-5-18 338 Contra Costa Skyline Nat'l Rec. Trail. East of Grizzly Peak Blvd. and north of Claremont/Fish Ranch Rd. Comment
  JEPS45555  Phacelia breweri A. R. Kruckeberg 1949-4-16 1739 Contra Costa Deer Flat trail ca 1/8 mi from Juniper Camp; Mount Diablo Comment
  RSA75338  Phacelia breweri Mary L. Bowerman 1932-4-16 1341 Contra Costa Rocky bank, Eagle Point. 671 Comment
  UC1228237  Phacelia californica Beecher Crampton 1950-4-22 533 Contra Costa along state hwy 4 in pass between Concord Valley and Pittsburg (steep hillside in roadcut) Comment
  UC672385  Phacelia californica Herbert L. Mason 1928-4-13 4300 Contra Costa cliffs facing Bay Richmond Comment
  RSA42303  Phacelia californica Lincoln Constance 1940-3-16 2524 Contra Costa Margin of San Francisco Bay, Point Richmond. 15 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
  UC107374  Phacelia distans T. S. Brandegee May 1889 Contra Costa Antioch Comment
  UC107400  Phacelia distans T. S. Brandegee May 1889 Contra Costa Byron Springs Comment
  UC56706  Phacelia distans Harley P. Chandler 1901-4-5 967 Contra Costa Mt. Diablo Comment
  UC672426  Phacelia distans Herbert L. Mason 1929-3-29 5122 Contra Costa Mount Diablo 762 Comment
  UC24351  Phacelia divaricata Harley P. Chandler 1901-4-5 968 Contra Costa Mt. Diablo Comment
  RSA0027642  Phacelia divaricata Barbara Ertter, Tony Morosco 1998-4-12 16020 Contra Costa Mount Olympia on north side of Mount Diablo, Olympia Road down ridge west of summit. 854 Comment
  UC672384  Phacelia imbricata Herbert L. Mason 1928-4-26 4388 Contra Costa slopes to n of Lake Temescal; Berkeley Hills Comment
  JEPS2162  Phacelia imbricata subsp. imbricata W. L. Jepson 1923-6-10 9989 Contra Costa Upper Marsh Creek Mt. Diablo Comment
  UC107571  Phacelia imbricata subsp. imbricata K. Brandegee June 1883 Contra Costa Antioch Comment
  UC691696  Phacelia imbricata subsp. imbricata Mary L. Bowerman 1934-4-21 2543 Contra Costa knoll e Pioneer Camp; Mount Diablo Comment
  LA205630  Phacelia perityloides H. M. Hall; F. M. Essig 1916-5-31 10135 Contra Costa Mt. Diablo 347 Comment
Read comments
Mar 29 2015
  UC691332  Phacelia phacelioides Mary L. Bowerman 1932-4-16 1343 Contra Costa Eagle Point Mount Diablo (n side) 670 Comment
  JEPS1284  Phacelia tanacetifolia Linda Gehringer 1914-3-29 Contra Costa Brentwood Comment
  JEPS87899  Phacelia tanacetifolia Barbara Ertter 1991-5-5 9774 Contra Costa s of Pittsburg (above Nortonville Pass, Black Diamond Mines Regional Preserve, s side of Rose Hill); Black Diamond Mines Regional Preserve, Rose Hill 365 Comment
  SEINET3158353  Phacelia tanacetifolia L. S. Rose 1933-4-17 33091 Contra Costa Antioch Comment
  UCD88527  Phalaris arundinacea Malcolm A. Nobs; S. Galen Smith 1949-7-8 945 Contra Costa Otto's Black Bass Resort, 4 miles N of Kingston. Comment
  POM301848  Phalaris lemmonii Mary L. Bowerman 1934-4-21 2533 Contra Costa Muir Area Comment
  CAS-BOT-BC265962  Phalaris minor John Thomas Howell 1933-5-14 11234 Contra Costa St. Mary's College Comment
  CAS-BOT-BC265960  Phalaris minor Mary L. Bowerman 1933-4-15 1849 Contra Costa Canyon south of Arrroyo del Cerro, Mount Diablo Comment
  CAS-BOT-BC265961  Phalaris minor Mary L. Bowerman 1934-4-21 2533 Contra Costa Muir Area, Mount Diablo Comment
  CDA15237  Phalaris paradoxa G. F. Hrusa, D. Crowe 1998-5-8 14368 Contra Costa Sacramento Delta; Disturbed areas about annual grasslands on Dow Chemical property at Pittsburg. Annual, to 1.5 meters tall. Comment
  UC2028383  Phalaris paradoxa Barbara Ertter 1998-6-20 16253 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, central grasslands Comment
  UCD146727  Phalaris paradoxa G. F. Hrusa; D. Crowe 1998-5-8 14401 Contra Costa Sacramento-San Joaquin River Delta. East end of Dow Chemical property. 15 Comment
  UCD89357  Phalaris paradoxa Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  UCD89404  Phalaris paradoxa P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UCD89405  Phalaris paradoxa P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CAS-BOT-BC250684  Phalaris paradoxa R. E. Frenkel 1964-4-18 428 Contra Costa 2.1 miles E. of Danville on Tassajara Road 129 Comment
  CAS-BOT-BC141255  Phoradendron serotinum subsp. tomentosum H. E. McMinn 1922-6-2 135 Contra Costa near toll gate on Mount Diablo Road Comment
  UC6099  Phoradendron villosum J. Burtt Davy 1895-4-7 911 Contra Costa Antioch Comment
  UC692039  Phoradendron villosum Mary L. Bowerman 1932-1-23 1077 Contra Costa knoll w. of the knoll between Sycamore Ridge and 1920 point Mt. Diablo Comment
  JEPS78626  Phragmites australis Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3279 Contra Costa Botany Cove Browns Island; , Botany Cove Comment
  UC1051055  Phygelius capensis N. Floy Bracelin 1942-12-6 2333 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC2028238  Phyla nodiflora var. nodiflora Barbara Ertter, Tony Morosco 1998-9-18 16429 Contra Costa Lime Ridge Open Space northwest of Mount Diablo. Comment
  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
  JEPS65569  Pickeringia montana var. montana W. L. Jepson 1943-6-8 20844 Contra Costa Moraga Ridge Comment
  UC1129854  Pickeringia montana var. montana R. W. Lundh 1932-8-27 149 Contra Costa 1 1/2 mi w Cave Point; Mt. Diablo Quadrangle 487 Comment
  CDA15276  Picris echioides G. F. Hrusa, D. Crowe, R. York 1998-7-17 14713 Contra Costa Sacramento Delta; E end of Dow Chemical property. Pittsburg. Comment
  JEPS65182  Pilularia americana L. R. Heckard 1971-4-15 2485 Contra Costa s Byron (field at intersection of Holey Rd.) Comment
  UC440232  Pinus coulteri Mrs. H. P. Bracelin 1931-3-22 179 Contra Costa Nortonville Comment
  UC2029175  Pinus halepensis Barbara Ertter 2000-7-29 17444 Contra Costa Donner Basin on north side of Mount Diablo, Falls Trail at east fork of Donner Creek (between main fork and Wild Oat Canyon), trickle of surface water. Comment
  SEINET3875083  Pinus sabiniana Dusty Mengshol 1963-3-17 25 Contra Costa 3/4 mile from top, Summit Trail, Mt. Diablo.; 0 1006 Comment
  JEPS84499  Piperia elegans Jack Stratford 1980-8-6 Contra Costa Huckleberry Trail Huckleberry Botanic Regional Preserve Comment
  RSA0029766  Piptatherum miliaceum Barbara Ertter, CNPS 1990-11-11 9709 Contra Costa Carquinez Straits Regional Park east of Crockett, near abandoned settlement near Port Costa. Comment
  CDA19635  Pittosporum undulatum M. I. Wibawa 2003-3-1 330 Contra Costa San Francisco Bay Area; Canyon Trail Park off Conlon Ave, El Cerrito. S 0 Comment
  SEINET3292812 Image available Plagiobothrys Lewis S. Rose 1933-3-29 33044 Contra Costa Nortonville, Hills Comment
  UC2027917  Plagiobothrys acanthocarpus Barbara Ertter, Dan Norris 2001-4-15 17615 Contra Costa West side Mount Diablo, east end Stonegate Trail. Comment
  JEPS111845  Plagiobothrys bracteatus D. G. Kelch 2005-3-25 05 .76 Contra Costa Hercules - Carbon Carbon Road near Route 4 50 Comment
  SBBG28847  Plagiobothrys bracteatus J. T. Howell 1933-5-14 11232 Contra Costa St Mary's College Comment
  UC1084390  Plagiobothrys bracteatus G. Thomas Robbins 1937-4-25 149 Contra Costa 2 mi e Alamo Comment
  UC24549  Plagiobothrys bracteatus W. H. Brewer 1862-4-30 1007 Contra Costa Camp 69 Walnut Creek Comment
  UC573067  Plagiobothrys bracteatus H. L. Mason 1928-4-15 4343 Contra Costa top Moraga Ridge Comment
  POM226098  Plagiobothrys bracteatus J. T. Howell 1933-5-14 11232 Contra Costa St. Mary s College 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
  CDA40676  Plagiobothrys humistratus Jim Jokerst 1989-3-29 3066 Contra Costa 0.25 mile south of Byron Hot Springs, northeast of Livermore. 0 Comment
  OBI72067  Plagiobothrys leptocladus Barbara Ertter, Jim Jokerst and Dave Magney 1989-4-5 8129 Contra Costa SE county. W and adj to Clifton Ct Forebay, ca 15 air mi SW of Stockton T1S R3E sec 24 SESW Comment
  JEPS68111  Plagiobothrys nothofulvus Mrs. E. L. Mossman 1931-4-21 139 Contra Costa vicinity Grizzly Peak; Berkeley Hills 472 Comment
  JEPS99571  Plagiobothrys nothofulvus Mary Bowerman 1991-5-21 Contra Costa Mount Diablo, by Jim White Trail [Deer Flat Rd.] Comment
  UC536016  Plagiobothrys nothofulvus Laurence S. Jones 1934-4-8 44 Contra Costa w slope Mt. Diablo (approx 3 mi surface distance from peak) 609 Comment
  RSA0069382  Plagiobothrys stipitatus var. micranthus Katie Gallagher, Nick Jensen 2014-4-26 207 Contra Costa Las Trampas Regional Wilderness. 487 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
  CHSC67898  Plagiobothrys trachycarpus James D. Jokerst 1989-3-28 3054 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  UC78181  Plagiobothrys trachycarpus K. Brandegee May 1892 Contra Costa Antioch Comment
  UC79220  Plagiobothrys trachycarpus Katharine Brandegee May 1886 Contra Costa near Antioch Comment
  RSA0029671  Plagiobothrys trachycarpus Barbara Ertter, R. K. Brummitt 1998-5-13 16143 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, depression in road from Somersville Road to south leg of Loughler Loop Trail. Comment
  RSA523620  Plantago bigelovii subsp. bigelovii S. Galen Smith, R. C. Bacigalupi 1957-4-28 2851 Contra Costa 1 mile S of Byron. Comment
  CAS-BOT-BC6475  Plantago californica M. K. Curran 1883-1-1 s.n. Contra Costa Antioch Comment
  CDA21563  Plantago coronopus D. G. Kelch 2008-9-1 8 .295 Contra Costa Carquinez Strait; 200 m W of Pacheco Slough, E of Martinez. Comment
  UC1314970  Plantago elongata R. F. Hoover 1967-4-28 10516 a Contra Costa Byron Hot Springs Comment
  UC1950081  Plantago elongata Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8128 Contra Costa alkali sink W and adjacent to Clifton Court Forebay, ca 15 airmiles SW of Stockton Comment
  UC924236  Plantago elongata H. S. Reed 1939-4-1 217 Contra Costa n of Richmond (on edge of San Pablo Bay); San Pablo Bay Comment
  SEINET12352720  Plantago elongata L. S. Rose 1933-3-29 33040 Contra Costa Nortonville Comment
  JEPS6407  Plantago erecta W. L. Jepson 1923-4-22 9872 Contra Costa Mt. Diablo Comment
  UC2032844 Image available Plantago erecta Doran, Andrew Scott 2012-3-20 715 Contra Costa Trail down from highest point of Brooks Island. South east part of Island. Comment
  UC691746  Plantago erecta Mary L. Bowerman 1930-6-18 336 Contra Costa upper end Rock City Canyon Mount Diablo, Rock City Canyon Comment
  POM61278  Plantago erecta C. F. Baker 1903-4-28 2828 Contra Costa Marsh Creek, Mt. Diablo. Comment
  JEPS22024  Plantago lanceolata G. Thomas Robbins with S. Galen Smith 1958-6-2 3852 Contra Costa just e Hercules city boundary (Franklin Canyon Road (State Highway 4)); Refugio Valley 18 Comment
  UC1192028  Plantago major Malcolm A. Nobs and S. Galen Smith 1949-7-8 947 Contra Costa 4 mi. n. Kingston (Otto's Black Bass Resort); Otto's Black Bass Resort Comment
  SJSU7798  Plantago subnuda G. A. Samuelson 1955-5-22 Contra Costa McAvoy Boat Harbor, McAvoy Comment
  UC1607651  Plantago subnuda Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10882 Contra Costa just w Antioch marina (levee at n-center of preserve, at end of road); Dow Wetlands Preserve Comment
  UC64135  Platystemon californicus H. M. Hall 1900-3-23 Contra Costa San Pablo Creek; Region of San Francisco Bay, San Pablo Creek Comment
  UC101591  Platystemon californicus Katharine Brandegee 1907-5-5 h Contra Costa between Antioch and Marsh Creek (along a sandy road back of old Coal Mine); between Antioch and Marsh Creek Comment
  UC50152  Platystemon californicus W. H. Brewer 1862-5-15 1095 Contra Costa Kirker's Pass Diablo Mountain (Diablo Mountain); , Kirker's Pass Comment
  UCD32384  Platystemon californicus Beecher Crampton 1950-4-22 528 Contra Costa Contra Costa County, above Judsonville, above old Empire Mine to south around top of hills. 182 Comment
  CHSC24920  Plectritis ciliosa M. A. Callahan 1976-4-14 13 Contra Costa On west slope ca. 135 m. e of house at 1976 Mohawk Dr. Pleasant Hill. 140 Comment
  JEPS5147  Plectritis ciliosa subsp. ciliosa Mary L. Bowerman 1933-4-9 1835 Contra Costa Mount Diablo, w fork of Donner Canyon Donner Canyon; Mount Diablo, Donner Canyon 243 Comment
  UC76300  Plectritis ciliosa subsp. ciliosa Harley P. Chandler 1901-4-4 951 Contra Costa Mount Diablo, Pine Canyon Pine Canyon; Mount Diablo, Pine Canyon Comment
  JEPS18277  Plectritis ciliosa subsp. ciliosa Peter H. Raven with Mason, Stone, Ornduff, Kuijt 1957-4-11 10619 Contra Costa 2.4 mi s of Curry Creek (Recreation Ground on road to Livermore) Comment
  JEPS111775  Plectritis macrocera D. G. Kelch 2005-3-25 05 .83 Contra Costa Pinole Peak Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak 250 Comment
  UCD90186  Pleuropogon californicus var. californicus R. Tofsrud 1946-4-1 s.n. Contra Costa Concord airfield. Comment
  UC2028092  Pluchea odorata Barbara Ertter, Chris Thayer 1996-10-25 15380 Contra Costa West side of Mount Diablo, North Gate Road 3 roadmiles below Junction, roadside drainage near Mineral Spring. Comment
  JEPS111733  Pluchea odorata var. odorata D. G. Kelch 2004-9-2 04 .334 Contra Costa Pacheco Marsh east of Martinez and I-680 and east of lone tree Marsh 5 Comment
  CHSC21644  Poa annua Willis Ball 1975-3-2 471 Contra Costa Contra Loma Regional Park. In area #1. At w end of main parking lot at s end of lake. 36 Comment
  UC691191  Poa annua Mary L. Bowerman 1931-4-4 666 Contra Costa Pond w of Turtle Rock; Mt. Diablo Comment
  UCD36910  Poa annua Beecher Crampton 1956-5-14 3374 Contra Costa 5 miles south of city of Antioch, on Empire Mine Drive, at head of Horse Valley. Comment
  UC1618191  Poa bulbosa Barbara Ertter, Lynne Hosley 1993-4-17 11507 Contra Costa ca. 10 air mi. n. Livermore (hills in lee of Mt. Diablo, e. side open meadow along Blue Oak trail, Morgan Territory); Morgan Territory 609 Comment
  CDA35481  Poa bulbosa Ed Finley 1992-4-9 PDR# 962398 Contra Costa Morgan Territory Regional Preserve, near Mt. Diablo. 0 Comment
  CAS-BOT-BC246615  Poa howellii Edward Lee 1936-4-19 2007 Contra Costa Northeast slope of the island. Red Rock, San Francisco Bay Comment
  JEPS99533  Poa howellii Mary L. Bowerman 1979-5-12 Contra Costa Mount Diablo. Prospector's Gap. Trail to North Peak from Devil's elbow. Between Devil's Pulpit and Aug. 1977 burn. 975 Comment
  JEPS99538  Poa howellii Mary L. Bowerman 1978-5-14 Contra Costa Mount Diable. Eagle Peak Old Mines trail. Comment
  UC692328  Poa howellii Mary L. Bowerman 1933-5-21 2148 Contra Costa below Grape Spring (s from Curry Canyon); Mt Diablo Comment
  SEINET3562517 Image available Poa scabrella Lewis S. Rose 1934-3-13 34055 A Contra Costa Marsh Creek, 2 miles east of Clayton. Comment
  POM300629  Poa secunda Mary L. Bowerman 1933-4-15 1869 Contra Costa Canyon south of Arroyo del Cerro; Rocky knoll 250 feet below spring. Comment
  SEINET11695803  Poa secunda Unknown 1956-5-14 3387 Contra Costa 6.7 mi SW of city of Antioch, between old coal mining towns of Somersville & Nortonville Comment
  UC38696  Poa secunda subsp. secunda J. Burtt Davy 1895-4-8 898 Contra Costa Antioch Comment
  UC691187  Poa secunda subsp. secunda Mary L. Bowerman 1935-4-26 2900 Contra Costa w Indian Ceremonial spring; Mt Diablo 1021 Comment
  UC692417  Poa secunda subsp. secunda Mary L. Bowerman 1935-4-19 2859 Contra Costa near Turtle Rock (hillside opposite side of rd); Mt Diablo 457 Comment
  UC70966  Poa secunda subsp. secunda J. Burtt Davy 1900-3-24 6534 Contra Costa near Pt. Richmond Comment
  CAS-BOT-BC236385  Poa secunda subsp. secunda Mary L. Bowerman 1935-5-18 3028 Contra Costa Mount Diablo. N of the summit parking area 1036 Comment
  CAS-BOT-BC236393  Poa secunda subsp. secunda Mary L. Bowerman 1933-5-3 1985 Contra Costa Mount Diablo. [Indian Ceremonial] Canyon: flat a little below and across the stream from the spring 731 Comment
  SEINET5548629  Poaceae J. Hamai 1985-1 s.n. Contra Costa Russell Reserve Comment
  SEINET883324  Poaceae F. W. Gould 1941-1 1304 Contra Costa near San Francisco Bay at Albany. Comment
  JEPS111505  Pogogyne serpylloides D. G. Kelch 2005-5-13 05 .267 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Area along Vista Road ~ 2.5 kiloms West of Martinez 45 Comment
  JEPS112475  Pogogyne serpylloides D. G. Kelch 2005-3-25 05 .78 Contra Costa Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak 150 Comment
  JEPS62457  Pogogyne serpylloides John Thomas Howell 1930-4-22 4747 Contra Costa Bald Peak, Berkeley Hills. Comment
  RSA0022141  Pogogyne serpylloides Mary L. Bowerman 1931-5-21 876 Contra Costa Curry Canon. Hard, open flat by Olafsons barn 274 Comment
  RSA0068483  Pogogyne serpylloides Katie Gallagher, Nick Jensen 2014-4-26 192 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  SEINET13947028 Image available Pogogyne serpylloides Joseph Andorfer Ewan 1935-1 9305 Contra Costa E slope of Bald Peak, San Pablo Ridge; 1800 ft alt. 549 Comment
  UC1988933  Pogogyne serpylloides John Thomas Howell 1930-4-22 4747 Contra Costa Bald Peak Comment
  UC691516  Pogogyne serpylloides Mary L. Bowerman 1931-5-21 876 Contra Costa Curry Canyon: Hard open flat by Olafson's barn 274 Comment
  OBI13587  Pogogyne zizyphoroides Robert F. Hoover 1967-4-28 10504 Contra Costa Byron Hot Springs Comment
  CDA23065  Polycarpon tetraphyllum D. G. Kelch, D. A. Weinstein 2008-5-5 8 .091 Contra Costa Carquinez Strait; Richmond. W Chevy s Hill. N parking lot of Hilltop Mall. Comment
  CDA33833  Polycarpon tetraphyllum D. G. Kelch 2010-5-15 10 .126 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 Comment
  RSA74882  Polygonum arenastrum Elroy Robinson 1935-9-14 s.n. Contra Costa Martinez Comment
  CDA9497  Polygonum aviculare D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .222 Contra Costa Byron Airport. Comment
  CAS-BOT-BC413968  Polygonum aviculare subsp. aviculare Ira L. Wiggins 1930-4-18 4612 Contra Costa Jersey Island Comment
  JEPS112029  Polygonum aviculare subsp. buxiforme Dean G. Kelch and Andrew G. Murdock 2005-3-13 DGK 05 .044 Contra Costa Crockett - weedy area under Zampa Bridge. Comment
  CDA2797  Polygonum cuspidatum G. D. Barbe 1975-10-29 2101 Contra Costa Bank of Lafayette Creek, Mt. Diablo Blvd. at Village Center, Lafayette 0 Comment
  JEPS112022  Polygonum hydropiperoides Dean G. Kelch and Andrew G. Murdock 2004-6-6 DGK 04 .228 Contra Costa Martinez - Train Station. Downtown Martinez. Alhambra Creek near bay and railroad Station. Comment
  UC1818918  Polygonum lapathifolium Barbara Ertter 1995-8-19 14503 Contra Costa Edge of Cerrito Creek on north side of Albany Hill, south edge of El Cerrito; dense weeds at edge of sluggish water. Comment
  UC1478302  Polypodium Alan R. Smith with Tom Lemieux 1981-11-19 827 Contra Costa n slope Mt. Diablo (creekside ravine along North Gate Rd, 3.6 mi w of (below) Park HQ (South Gate Rd. junction)); Mt. Diablo State Park 640 Comment
  CDA42731  Polypodium calirhiza D. G. Kelch 2004-3-5 4 .004 Contra Costa Carquinez Strait Region; Rankin Park Open Space, Martinez. Comment
  JEPS100159  Polypodium calirhiza G. Smick 2003-6-6 GAS 217 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1177504  Polypodium calirhiza John Thomas Howell 1940-2-11 Contra Costa near Rock City; Mt. Diablo Comment
  UC692121  Polypodium calirhiza Mary L. Bowerman 1935-3-15 2736 Contra Costa e fork Arroyo del Cerro; Mt. Diablo 262 Comment
  CAS-BOT-BC361416  Polypogon Peter Rubtzoff 1968-9-18 5965 Contra Costa North Gate Road, ca. 5 miles northwest of Mt. Diablo State Park north entrance. Comment
  UC1819008  Polypogon interruptus Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14233 Contra Costa South side Mount Diablo, Sheepherder Springs complex 1/2 mile north of Curry Point, wet ground in grassland. 487 Comment
  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
  UCR2722  Polypogon monspeliensis A. A. Beetle 1941-6-24 1750 Contra Costa Point Richmond on San Francisco Bay Comment
  UC1063673  Polystichum munitum R. W. Lundh 1933-3-6 211 Contra Costa 1/2 mi w Eastport; Concord Quadrangle Comment
  UC1948931  Polystichum munitum William J. Ferlatte, L. Maynard Moe 1970-4-27 1244 Contra Costa San Francisco Bay: Red Rock Island Comment
  RSA760663  Polystichum munitum William J. Ferlatte, L. Maynard Moe 1970-4-27 1244 Contra Costa San Francisco Bay, Red Rock Island. Comment
  UC4923  Populus fremontii subsp. fremontii W. C. Blasdale 1901-9-28 Contra Costa San Pablo; at the old Castro house, along the creek Comment
  JEPS112037  Portulaca oleracea D. G. Kelch 2003-8-13 03 .111 Contra Costa Martinez Marsh 1 Comment
  SEINET11268163  Potamogeton pectinatus Barbara Ertter 1998-6-20 16254 Contra Costa NW side of Mount Diablo, Willow Spring Pond south of Ginder Gap.; 0 Comment
  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
  UCD122075  Proboscidea lutea J. B. Calleri 1930-10-1 2149 Contra Costa Martinez, Cal. Comment
  JEPS99979  Prunus cerasifera G. Smick 2003-5-1 GAS 161 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  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
  UC2028141  Prunus dulcis Barbara Ertter 1998-4-4 15974 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, Quarry Hill. Comment
  CAS-BOT-BC154629  Prunus subcordata K. C. 1883-5-1 s.n. Contra Costa Mt. Diablo Comment
Read comments
Mar 21 2019
  RSA113975  Prunus subcordata Peter H. Raven, H. L Mason, R. Ornduff 1957-4-11 10626 Contra Costa Curry Canyon, four miles south of the Recreation Ground. Comment
  JEPS112071  Prunus virginiana subsp. demissa A. G. Murdock 2004-5-28 268 Contra Costa Pinole Peak 205 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
  JEPS75547  Pseudognaphalium californicum P. F. Yorks 1975-7-5 467 Contra Costa ca 1.5 mi s Bear Creek Road (on Hampton Road in Hampton Road Natural Reserve, n of Briones Reservoir) 180 Comment
  CAS-BOT-BC357594  Pseudognaphalium stramineum Walter Knight; I. Knight; J. T. Howell; E. McClintock; S. Rae; B. Doyle 1978-9-5 3237 Contra Costa Browns Island Comment
  UC1051469  Psilocarphus brevissimus var. brevissimus Herbert L. Mason 1952-4-14 14266 Contra Costa 3.5 mi s Byron Comment
  RSA31229  Psilocarphus tenellus var. tenellus Joseph A. Ewan 1936-5-3 9497 Contra Costa Wildcat Creek near Orinda road bridge. Comment
  SEINET12235404  Ptelea baldwinii M. T. Doretl 1930-1 79 Contra Costa Marsh Creek Comment
  POM138613  Ptelea baldwinii subsp. crenulata C. F. Baker 1903-4-28 2943 Contra Costa Mitchell's Canyon, Mt. Diablo. Comment
  RSA0084070  Ptelea baldwinii subsp. crenulata L. S. Rose 1936-4-24 36147 Contra Costa Marsh Creek. 6 miles E of Clayton. 61 Comment
  CAS-BOT-BC148629  Ptelea crenulata Alice Eastwood 1897-5-31 s.n. Contra Costa Mount Diablo Comment
  JEPS112112  Ptelea crenulata D. G. Kelch 2005-5-1 05 .202 Contra Costa Crockett - Edwards Canyon 100 Comment
  JEPS40166  Ptelea crenulata H. L. Mason 1928-3-31 Contra Costa Mt. Diablo Comment
  SD70002  Ptelea crenulata Darley Howe 1968-5-20 Contra Costa Nortonville Comment
  UC1177068  Ptelea crenulata Joanne Taylor 1941-7-18 22 Contra Costa hills by Nortonville 213 Comment
  UC1277976  Ptelea crenulata B. Crampton 1957-7-9 4273 Contra Costa 2-3 mi nw Martinez (slopes above the Carquinez Straits) Comment
  UC1602319  Ptelea crenulata H. S. Yates 1935-7-13 5340 Contra Costa 0.5 mi sw Nortonville; Mt. Diablo Quad. 365 Comment
  UC17379  Ptelea crenulata W. H. Brewer 1862-5-20 1130 Contra Costa n side Mount Diablo (hill n of coal mines) Comment
  UC194966  Ptelea crenulata H. M. Hall 1916-8-17 10277 Contra Costa 6 mi s Antioch; Upper Horse Valley 213 Comment
  UC2029093  Ptelea crenulata Barbara Ertter with Travis Columbus 1990-6-10 9110 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill, on Spengler Trail NE of Briones Peak. Comment
  UC583288  Ptelea crenulata Alice Eastwood and John Thomas Howell 1936-4-19 2134 Contra Costa Nortonville Comment
  UCSB4881  Ptelea crenulata Keator, Glenn 1959-7-1 Contra Costa Laurel camp on Mt. Diablo Comment
  UC606766  Pteridium aquilinum var. pubescens Edward Lee 1936-4-19 2016 Contra Costa e slope of island Red Rock; San Francisco Bay Comment
  JEPS57983  Pterostegia drymarioides W. L. Jepson 1923-4-22 9867 Contra Costa Mt. Diablo Comment
  UC692211  Pterostegia drymarioides Mary L. Bowerman 1933-4-9 1833 Contra Costa w. fork Donner Canyon; Mt. Diablo 243 Comment
  UC1618289  Pyrus communis Barbara Ertter, Chris Thayer 1993-5-7 11700 Contra Costa Hopkins Spring 1/2 mi se of Inspiration Point (on Wilodcat Canyon Road, East Bay Municipal Utilities District land e of Tilden Park); Hopkins Spring 304 Comment
  CAS-BOT-BC104161  Quercus X morehus H. E. McMinn 82 Contra Costa N slope of Mt. Diablo near summit Comment
  UC5621  Quercus X morehus J. Burtt Davy 1895-1-3 834 Contra Costa Wild-cat Canyon 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
  UC691317  Quercus X morehus Mary L. Bowerman 1933-6-14 2278 Contra Costa Inner Black Hills, w of 1970 Mount Diablo Comment
  CAS-BOT-BC45656  Quercus agrifolia John Thomas Howell 1950-7-5 26638 Contra Costa Nortonville Comment
  CDA21816  Quercus agrifolia D. G. Kelch 2007-3-24 7 .083 Contra Costa Carquinez Strait; Ozol; between Port Costa and Martinez, near old brick quarry. Comment
  CDA33977  Quercus agrifolia D. G. Kelch 2011-3-31 11 .082-B Contra Costa Carquinez Strait region.; Pinole. Comment
  CHSC39479  Quercus agrifolia Tyler Williams 1984-4-18 25 Contra Costa Mt. Diablo. At Live Oak Group Camp, ca 50 yd ne of site #15, in Rock City area of Mount Diable State Park. 304 Comment
  UC691324  Quercus agrifolia Mary L. Bowerman 1931-10-5 1053 Contra Costa head of Mount Diablo Creek, Marsh Creek Road Mount Diablo Comment
  UC691325  Quercus agrifolia Mary L. Bowerman 1930-10-25 495 Contra Costa near Sloan Road; Mount Diablo, Inner Black Hills Comment
  UCSC010011  Quercus agrifolia var. agrifolia Al Keuter 2014-5-23 AK 00 -095 Contra Costa Along Wildcat Canyon Road on the northeast side of the hills behind Berkeley 168 Comment
  JEPS37845  Quercus chrysolepis W. L. Jepson 1920-8-12 9074 Contra Costa Black Hills Mt. Diablo Comment
  SEINET14301648 Image available Quercus chrysolepis Robert A. Norris, John L. Inase 1981-1 4152 Contra Costa Near North Gate Rd., Mt Diablo; on dry SW-facing slope 716 Comment
  UC405354  Quercus chrysolepis W. P. Taylor 1912-7-22 Contra Costa w side Mt. Diablo Comment
  UC691284  Quercus chrysolepis Mary L. Bowerman 1930-6-7 275 Contra Costa Mount Diablo summit Mount Diablo Comment
  CAS-BOT-BC86646  Quercus douglasii H. E. McMinn 1922-6-2 84 Contra Costa North slope of Mt. Diablo Comment
  UC691285  Quercus douglasii Mary L. Bowerman 1930-8-31 445 Contra Costa Dan Cook Canyon Mount Diablo Comment
  CAS-BOT-BC86641  Quercus douglasii R. Bacigalupi 1922-9-24 s.n. Contra Costa lower end of Mitchell Canyon Comment
  CAS-BOT-BC79607  Quercus durata Mary L. Bowerman 1932-10-16 1632 Contra Costa Mount Diablo. Donner Canyon Trail Comment
  UC1748011  Quercus garryana E. Dean, M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 654 Contra Costa Fossil Ridge, just upslope of South Gate Rd., just W of Gibralter Rock, SE of Rock City Mount Diablo State Park 487 Comment
  CAS-BOT-BC94291  Quercus garryana Mary L. Bowerman 1930-10-19 493 Contra Costa Fossil Ridge S of Garden of the Gods Comment
  UC691320  Quercus kelloggii Mary L. Bowerman 1930-6-26 377 Contra Costa s of Riggs Canyon road (Clayton-Livermore road); Mount Diablo Comment
  CAS-BOT-BC61605  Quercus lobata Mary L. Bowerman 1930-6-3 224 Contra Costa Mount Diablo. West road, 1.9 miles from entrance 167 Comment
  UC691279  Quercus lobata Mary L. Bowerman 1930-6-22 372 Contra Costa Deer Flat Mount Diablo Comment
  SEINET12034644  Quercus lobata M. T. Doutt 1930-1 81 Contra Costa Marsh Creek,6 mi E of Clayton Comment
  RSA388013  Quercus palmeri J. M. Tucker 1981-4-25 4453 -B Contra Costa Antonio Souza Ranch, SW of Byron. 309 Comment
  UCD17142  Quercus parvula var. shrevei E. Dean; with B. Ertter, J. M. Tucker, and K. Chaney 2000-9-13 650 Contra Costa California. Contra Costa County: City of El Sobrante; El Sobrante Ridge, upslope of the terminus of Heavenly Ridge Rd., junction of Heavenly Ridge Trail and Manzanita Trail. 213 Comment
  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
  JEPS37967  Quercus wislizeni W. L. Jepson 1907-4-26 2647 Contra Costa Mt. Diablo Comment
  UC1135854  Quercus wislizeni R. C. Wilson 1935-3-28 154 Contra Costa Top of Mt. Diablo Mt. Diablo Quad. 1158 Comment
  UC691296  Quercus wislizeni Mary L. Bowerman 1933-9-30 2449 Contra Costa Russelman Park Mount Diablo Comment
  UCD17415  Quercus wislizeni E. Dean; with B. Ertter, J. M. Tucker, and K. Chaney 2000-9-10 651 Contra Costa California. Contra Costa County: City of El Sobrante; El Sobrante Ridge, upslope of the terminus of Heavenly Ridge Rd., junction of Heavenly Ridge Trail and Manzanita Trail. 213 Comment
  UCD47497  Quercus wislizeni John M. Tucker 1946-3-4 1378 Contra Costa East side of Redwood Peak, Oakland hills, Contra Costa County, California. Comment
  CAS-BOT-BC104716  Quercus wislizeni H. E. McMinn s.n. Contra Costa Curry Canon [Canyon] Mt. Diablo Comment
  UCD47649  Quercus wislizeni var. frutescens John M. Tucker 1941-9-26 410 Contra Costa Summit of Moraga Ridge, Contra Costa County, California. Comment
Read comments
Sep 13 2011
  JEPS84502  Rafinesquia californica Jack Stratford 1981-5-6 Contra Costa Skyline Trail between Huckleberry Trail and Pinehurst Road; Huckleberry Botanic Regional Preserve Comment
  CAS-BOT-BC362441  Rafinesquia californica Mary L. Bowerman 1930-6-14 327 Contra Costa Mount Diablo. Meridian Peak little below summit Comment
  CAS-BOT-BC362442  Rafinesquia californica Mary L. Bowerman 1931-4-25 764 Contra Costa Mount Diablo. Meridian Peak ca. 3 miles by road from summit Comment
  CAS-BOT-BC362445  Rafinesquia californica Brandegee No date on label s.n. Contra Costa Mt Diablo Comment
  UC691951  Ranunculus aquatilis Mary L. Bowerman 1935-6-21 3155 Contra Costa s Turtle Rock (winter pool e of main pond); Mount Diablo Comment
  CAS-BOT-BC379225  Ranunculus aquatilis var. aquatilis Mary L. Bowerman; Walter Knight; Irja Knight 1968-6-4 2331 Contra Costa Mt. Diablo State Park, floating on Frog Pond and growing at water's edge in mud Comment
  UCR263547  Ranunculus aquatilis var. capillaceus Barbara Ertter, Tony Morosco 1998-7-11 16365 Contra Costa San Francisco Bay Region, North base of Mount Diablo, small pond on north side of Bruce Lee Road east of Mitchell Canyon staging area 183 Comment
  RSA0027644  Ranunculus aquatilis var. capillaceus Barbara J. Ertter 1998-5-3 16057 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. 274 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
  JEPS112060  Ranunculus californicus D. G. Kelch 2005-4-15 05 .138 Contra Costa Rodeo Creek 100 ms west of previous site 100 Comment
  UC1818977  Ranunculus californicus Barbara Ertter, Gary Schoolcraft, Tony Morosco 1996-4-6 14562 Contra Costa Grassy ridge east of Curry Point, Mount Diablo edge of Knobcone Point Road near Sloan Road junction, clay soil. 548 Comment
  POM268457A  Ranunculus canus Mary L. Bowerman 1931-3-21 587 Contra Costa Sycamore Canyon: semi shady grassy spot, alt 1100ft. Contra Costa County 335 Comment
  POM268460  Ranunculus canus Lyman Benson 1931-3-28 2654 Contra Costa Danville; Mt. Range: Mt. Diablo 122 Comment
  UC2027849  Ranunculus canus Barbara Ertter 1997-2-16 15465 Contra Costa Shell Ridge Open Space on west flank of Mount Diablo, NE side of main ridge. Comment
  UC9455  Ranunculus canus var. canus J. Burtt Davy 1895-4-7 925 Contra Costa Antioch Comment
  POM268454  Ranunculus canus var. laetus Lyman Benson 1935-3-16 6281 Contra Costa 3 miles S of Antioch, Mt. Range: Mt. Diablo; Watershed: Sacramento River 152 Comment
  JEPS112055  Ranunculus hebecarpus D. G. Kelch 2005-5-1 05 .188 Contra Costa Crockett - Edwards Canyon. Hill below Cummings Skyway, 100 ms west of Crockett Blvd. junction. 150 Comment
  UC9443  Ranunculus hebecarpus W. H. Brewer 1862-5-6 1049 Contra Costa near Camp 70; Monte Diablo Comment
  JEPS102904  Ranunculus lobbii Barbara Ertter with Mary Bowerman 1995-5-7 14035 Contra Costa pond W of Three Springs trail on NE side of mouuntain Mount Diablo 304 Comment
  RSA85297  Ranunculus occidentalis var. ultramontanus F. W. Peirson 1925-7-1 6171 Contra Costa Wood borders, State Line, Lake Tahoe Comment
Read comments
Feb 10 2013
  UCD97103  Ranunculus sceleratus Mr. Nevin 1924-3-24 s.n. Contra Costa Antioch. Comment
  UC2027737  Raphanus raphanistrum Barbara Ertter 1997-2-11 15454 Contra Costa North base of Mount Diablo, vacant lot on Regency Drive (en route to Donner Canyon trailhead). Comment
  UC420524  Rhamnus tomentella subsp. tomentella Milo S. Baker 1904-6-24 Contra Costa near Mt. Diablo summit; Mt. Diablo, Pine Creek Canyon 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
  JEPS75496  Ribes californicum P. F. York 1974-2-3 107 Contra Costa 1.4 km. s Bear Creek Road (on Hampton Road, N of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  POM181150  Ribes californicum J. T. Howell 1931-2-21 5730 Contra Costa Mt. Diablo. Comment
  UC570838  Ribes californicum Herbert L. Mason 1926-3-7 2709 Contra Costa Summit Mt. Diablo Comment
  SEINET5339458  Ribes californicum E. Mulliken 1905-5-29 161 Contra Costa Wildcat Canon, Berkeley Hills Comment
  CAS-BOT-BC92920  Ribes californicum var. californicum John Thomas Howell 1931-2-21 5730 Contra Costa North side of Mount Diablo. Comment
  JEPS49338  Ribes malvaceum W. L. Jepson 1921-11-19 9514 Contra Costa halfway up to summit Mt. Diablo Comment
  UC692226  Ribes malvaceum Mary L. Bowerman 1930-10-19 486 Contra Costa West road = North Rd. Mount Diablo Comment
  JEPS111986  Ribes menziesii D. G. Kelch 2005-2-28 05 .8 Contra Costa Vaca Canyon Vaca Canyon Alhambra Valley Road Bay Forest road cut with Arbutus 165 Comment
  JEPS49205  Ribes menziesii W. L. Jepson 1923-6-10 9996 Contra Costa Upper Marsh Creek Mt. Diablo Comment
  JEPS79394  Ribes menziesii Edward Lee with Annetta Carter 1936-5-24 2167 Contra Costa 10 mi from Marsh Creek Road; Mt. Diablo, Morgan Territory Comment
  CAS-BOT-BC206017  Ribes menziesii John Thomas Howell 1980-4-10 53367 Contra Costa Morgan Territory east of Mt. Diablo Comment
  JEPS111954  Ricinus communis D. G. Kelch 2004-7-9 04 .316 Contra Costa Rodeo Shore 2 Comment
  UC697146  Rigiopappus leptocladus Mary L. Bowerman 1931-4-25 759 Contra Costa opposite Oak Knoll Picnic Grounds; Mount Diablo, Mountain House Canyon 822 Comment
  JEPS99482  Rigiopappus leptocladus Mary Bowerman 1977-5-29 Contra Costa Mount Diablo. SW corner Russellman Park. 365 Comment
  UC1727989  Romulea rosea var. australis Gregg Weber 1998-5-6 Contra Costa San Pablo Ridge trail Comment
  JEPS100080  Rorippa nasturtium-aquaticum S. O'Neil 2003-8-6 SEO 45 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC148107  Rosa gymnocarpa John Thomas Howell 1925-9-27 1485 Contra Costa San Leandro Canyon, Oakland Hills Comment
  OBI10018  Rosa gymnocarpa H. E. McMinn 1932-1 5278 Contra Costa Orinda Comment
  UC691149  Rosa gymnocarpa Mary L. Bowerman 1931-5-23 895 Contra Costa Alamo Canyon Mount Diablo (n-facing bank in canyon bottom) 487 Comment
  UC2028227  Rosa spithamea Barbara Ertter 1998-12-6 16470 Contra Costa Rock City area on southwest side Mount Diablo. Comment
  CAS-BOT-BC147152  Rubus laciniatus Walter Knight; Bill Burley 1979-8-18 3445 Contra Costa Browns Island, Point Emmett Comment
  UC2028271  Rumex acetosella Barbara Ertter 1999-6-12 16706 Contra Costa Black Hawk Ridge Road between Knobcone Point Road and NE fork of Sycamore Creek, South side of Mount Diablo. Comment
  UC2029020  Rumex californicus Barbara Ertter 1999-7-17 16766 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, Wildcat Creek Trail between Rifle Range Road and boundary with Tilden Regional Park. Comment
  UC2029192  Rumex conglomeratus Barbara Ertter 2000-7-16 17380 Contra Costa Diablo Foothills Regional Park, riparian strip along Pine Creek between Castle Rock Regional Recreation Area Comment
  UC465806  Rumex crispus J. Burtt Davy 1895-4-8 976 Contra Costa Antioch Comment
  JEPS99968  Rumex pulcher G. Smick 2003-5-10 GAS 206 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1328158  Rumex pulcher Olive Dyer 1936-10-18 100 Contra Costa about 0.5 mi below junction Wildcat Creek and Wildcat-Orinda road; Wildcat Canyon Comment
  UCD101441  Rumex pulcher Rimo Bacigalupi; L. R. Heckard 1965-5-11 9075 Contra Costa On West side of Brooks Island (in San Francisco Bay south-west of Richmond). 6 Comment
  UC1584824  Rumex salicifolius var. crassus Jerry Powell 1987-7-14 1501 Contra Costa Point Molate Beach Comment
  JEPS41049  Rumex salicifolius var. salicifolius Rimo Bacigalupi, and L. R. Heckard 1965-5-11 9074 Contra Costa sw of Richmond (w side of Brooks Island); San Francisco Bay, Brooks Island 6 Comment
  RSA0029279  Rumex salicifolius var. salicifolius Barbara J. Ertter, Tony Morosco 1996-7-27 15030 Contra Costa Mount Diablo State Park, Donner Creek ca. halfway between Regency Drive trailhead and old cabin site. 183 Comment
  UC692209  Rumex salicifolius var. salicifolius Mary L. Bowerman 1935-10-26 3346 Contra Costa 2 rd mi e Mount Diablo west entrance; Mount Diablo 228 Comment
  JEPS121055  Rupertia physodes Dean G. Kelch and Andrew G. Murdock 2004-5-9 042 .12 Contra Costa Crockett - Bull Valley Comment
  JEPS75463  Rupertia physodes P. F. Yorks 1975-5-31 421 Contra Costa ca 1.7 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve Comment
  SJSU5703  Rupertia physodes C. O. Dudley 1966-5-1 113 a Contra Costa Reliez Valley, Briones Hills, N of Lafayette 152 Comment
  CDA35214  Ruta chalepensis F. Brucato & G. Sorensen 1964-5-6 s.n. Contra Costa Brentwood, Deer Valley Road. 0 Comment
  SEINET11268191  Salicornia europaea Barbara Ertter 1990-9-30 9656 Contra Costa Point Pinole Regional Shoreline, edge of sparina marsh at edge of salicornia marsh on SW corner of park; edge of San Pablo Bay.; 0 Comment
  CDA23461  Salicornia pacifica T. C. Fuller 1965-11-24 14323 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
  CDA23458  Salicornia subterminalis R. L. Todd 1962-11-21 Contra Costa Old River Canal bridge. 0 Comment
  CAS-BOT-BC129920  Salix bonplandiana C. F. Baker 1903-4-28 2814 Contra Costa Mount Diablo - Mitchell Canyon Comment
  CAS-BOT-BC129921  Salix bonplandiana Barrett Anderson 1987-4-29 3476 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD. 125 Comment
  CAS-BOT-BC129922  Salix bonplandiana Barrett Anderson 1987-4-30 3488 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD. 125 Comment
  CAS-BOT-BC129919  Salix bonplandiana Mary L. Bowerman 1933-5-10 2067 Contra Costa Mount Diablo - spring on ridge below Indian Ceremonial Spring 975 Comment
  UCD110901  Salix exigua B. Crampton 1950-7-4 600 Contra Costa Railroad embankment, Richmond. Comment
  CDA9512  Salix gooddingii D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .239 Contra Costa CA Delta; Along Clifton Court Near Clifton Court Forebay. Comment
  UC407030  Salix gooddingii Ira L. Wiggins 1930-4-18 4603 Contra Costa levees, Jersey Isl. Jersey Isl. Comment
  CAS-BOT-BC107897  Salix gooddingii Virginia I. Dains; Walter Knight 1986-8-8 5491 Contra Costa Jct. Rock S1 & Werner Cut Comment
  SEINET3158569  Salix laevigata H. P. Chandler 1901-3-22 858 Contra Costa Pacheco Comment
  LA208679  Salix laevigata Joseph Andorfer Ewan; 1933-10-15 8034 Contra Costa Mount Diablo, Indian Ceremonial Apr Comment
  POM300612  Salix lasiolepis Mary L. Bowerman 1931-2-8 512 Contra Costa Mt. Diablo. By road. 762 Comment
  UC692062  Salix lasiolepis Mary L. Bowerman 1933-2-23 1721 Contra Costa Donner Canyon Mount Diablo (w fork toward mouth, by streambed) Comment
  CAS-BOT-BC129554  Salix lasiolepis var. lasiolepis Walter Knight 1965-3-1 s.n. Contra Costa Antioch dunes, by water's edge - Carquinez Straights 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-BC220706  Salvia D. M. Curran 1882-8-2 s.n. Contra Costa Antioch Comment
  JEPS62659  Salvia columbariae W. L. Jepson 1921-11-19 9519 Contra Costa s slope Mt. Diablo Comment
  UC691722  Salvia columbariae Mary L. Bowerman 1933-5-2 1942 Contra Costa below Pioneer Camp, Mount Diablo; Mount Diablo 762 Comment
  JEPS112471  Salvia leucophylla D. G. Kelch 2005-5-1 05 .186 Contra Costa Crockett - Edwards Canyon. Below road near junction of Cummings Skyway and Crockett Blvd. 150 Comment
  JEPS62740  Salvia mellifera unknown 1919-6-8 8330 Contra Costa Mt. Diablo San Francisco Bay (vicinity of San Francisco Bay) Comment
  JEPS62759  Salvia mellifera W. L. Jepson 1921-11-19 9517 Contra Costa Mt. Diablo Comment
  UC1124825  Salvia mellifera R. C. Wilson 1935-2-26 106 Contra Costa Mt. Diablo; Mt. Diablo Quad. 426 Comment
  UC25729  Salvia mellifera Harley P. Chandler 1901-4-5 976 Contra Costa Mt. Diablo Comment
  UC32598  Salvia mellifera Chesnut and Drew 1889-4-16 Contra Costa Summerville Comment
  UC75018  Salvia mellifera unknown 1903-4-28 2945 Contra Costa Mitchell Canyon; Mt. Diablo Comment
  UCD125592  Salvia mellifera P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UC2045292 Image available Salvia mellifera Mary L. Bowerman 1931-2-8 507 Contra Costa West road Comment
  JEPS75505  Sambucus mexicana P. F. Yorks 1975-5-3 422 Contra Costa on Hampton Rd. ca 1.7 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  RSA477576  Sambucus mexicana B. C. Templeton 1962-6-10 s.n. Contra Costa Mt Diablo. Comment
  CAS-BOT-BC238634  Sambucus nigra subsp. caerulea Barrett Anderson 1987-4-30 3487 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  UCD150884  Sambucus nigra subsp. caerulea James A. Neilson Jr. 1972-11-9 s.n. Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 Comment
  UCSB39463  Sanicula bipinnata Fritzke, Sue 1980-3-29 Contra Costa 0.5 miles from the E end of Ball Rd. in the Shell Ridge Open Space Area, SE of the rock quarry 124 Comment
  JEPS111603  Sanicula bipinnatifida D. G. Kelch 2003-3-21 03 .50 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  JEPS111612  Sanicula bipinnatifida D. G. Kelch 2004-4-3 04 .48 Contra Costa Martinez - Vine HillRidge West of 680. North of highway 4 44 Comment
  CDA23108  Sanicula crassicaulis D. G. Kelch, D. A. Weinstein 2008-4-25 8 .082 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
Read comments
Jan 7 2016
  JEPS77016  Sanicula crassicaulis Robert M. Lloyd 1963-3-17 2143 Contra Costa on Skyline <Drive> (across from 7090 Skyline) .5 mi e intersection of Grizzly Peak Rd and Skyline Drive (Huckleberry trail); Huckleberry trail Comment
  OBI70552  Sanicula crassicaulis D. G. Kelch, D. A. Weinstein 2008-4-25 8 .082 Contra Costa Alvarado Park (W end of Wildcat cyn park) on N facing hillside above Hundu temple i 122 Comment
  POM288025  Sanicula crassicaulis Lyman Benson 1931-3-18 2660 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  UC691873  Sanicula crassicaulis Mary L. Bowerman 1930-6-5 248 Contra Costa Mount Diablo, West Road 5.8 mi from entrance Mount Diablo; , West Road 457 Comment
  UC2027776  Sanicula crassicaulis Barbara Ertter with Holly Forbes 1997-4-20 15563 Contra Costa North base of Mount Diablo, Eagle Peak Trail on NE side of Eagle Ridge below Twin Peaks. Comment
  JEPS996  Sanicula laciniata W. L. Jepson 1943-4-24 20764 Contra Costa vicinity of San Francisco Bay (Oakland Hills, Moraga Ridge); Oakland Hills, Moraga Ridge Comment
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Jan 24 2008
  SD211529  Sanicula saxatilis Barbara Ertter, Brad Olson et al 1991-4-7 9728 Contra Costa Eagle Peak on Mount Diablo; scree slopes on East and Southwest side, especially in drainages 228 Comment
  UC735124  Sanicula saxatilis Lincoln Constance, T. Morley, R. H. Shan, W. H. Wagner 1946-4-26 3036 Contra Costa Mount Diablo, Summit sw of lookout Mount Diablo 1158 Comment
  RSA97364  Sanicula saxatilis Mary L. Bowerman 1931-4-25 769 Contra Costa Mount Diablo, summit Comment
  UC1949241  Sanicula saxatilis Barbara Ertter with Brad Olson, Lynne Hosley, et al. 1991-4-7 9728 Contra Costa Eagle peak on Mount Diablo; slopes on E and SW side Comment
  JEPS98659  Sanicula tuberosa O. Gomez, L. Schulties and P. Vargas 1996-5-29 43 PV96 Contra Costa trail between Mt. Diablo Peak and North Peak Mt. Diablo State Park Comment
  JEPS112483  Satureja douglasii D. G. Kelch 2004-5-2 04 .171 Contra Costa Crockett - Edwards Canyon 112 Comment
  CDA23106  Scandix pecten-veneris D. G. Kelch, D. A. Weinstein 2008-4-25 8 .079 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
Read comments
Jan 7 2016
  RSA721868A  Scandix pecten-veneris Barbara Ertter, Mary L. Bowerman, Lisa Schultheis 1995-3-31 13947 Contra Costa Mount Diablo State Park, grassy field along road at base of Mitchell Canyon Comment
  UC1618278  Schoenoplectus acutus var. occidentalis Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10708 Contra Costa opposite Pittsburg Marina (near w end of island, n of Pittsburg, near confluence of Sacramento and San Joaquin rivers); Browns Island Comment
  CAS-BOT-BC111377  Schoenoplectus acutus var. occidentalis John Thomas Howell; Gordon H. True 1972-6-29 48937 Contra Costa Wet soil or shallow water along ditches on Bryon Hot Springs Road SE of Byron. Comment
  SEINET10319578  Schoenoplectus americanus W. Knight 1977-6-10 s.n. Contra Costa Sand Creek near coal-mining site of Stewartville 158 Comment
  CAS-BOT-BC111464  Schoenoplectus californicus Walter Knight; Irja Knight 1977-6-18 s.n. Contra Costa On shore of San Joaquin River, Antioch sand dunes, Little Corral site. Comment
  UC407366  Schoenoplectus californicus Ira L. Wiggins 1930-4-18 4592 Contra Costa Levee bank , Levee bank (Jersey Island) Comment
  UC1950189  Schoenoplectus californicus Barbara Ertter 1990-9-10 9639 Contra Costa Briones Regional Park, Briones Hills S of Martinez, at margin of main Sindicich Lagoon Comment
  UC2070498  Schoenoplectus californicus Barbara Ertter 2005-8-15 18630 Contra Costa East side of Contra Loma Reservoir south of Antioch, marsh in SE cove. Comment
  UC692181  Scirpus acutus var. occidentalis Mary L. Bowerman 1938-9-17 3715 Contra Costa by the rivulet and in the marsh Big Spring Mount Diablo, Big Spring 731 Comment
  CDA39127  Scirpus maritimus var. paludosus D. G. Kelch 2004-6-6 4 .23 Contra Costa Carquinez Strait Region; Martinez -- Train Station: In large fill area north of Frontage Road, east of Martinez and I-680. Comment
  UC2070541  Scleranthus annuus Barbara Ertter with Chris Thayer 2002-4-13 17827 Contra Costa North side of Mount Diablo. Comment
  CAS-BOT-BC240009  Scribneria bolanderi John Thomas Howell 1953-3-15 28924 Contra Costa Rock City, Mt. Diablo Comment
  JEPS116696  Scribneria bolanderi David Gowen 2006-5-17 579 Contra Costa Mount Diablo; Ridge east and above Donner Canyon. Comment
  JEPS116725  Scribneria bolanderi David Gowen 2006-4-22 545 Contra Costa Los Vaqueros Watershed. Chaparral area (Mallory Ridge?) just southeast of Morgan Territory Reg. Preserve. Comment
  JEPS23819  Scrophularia californica subsp. californica G. Thomas Robbins with John Weiler 1959-5-23 4025 Contra Costa w shore of Brooks Isl; San Francisco Bay, Richmond Comment
  UC1713655  Scutellaria tuberosa Joseph Andorfer Ewan 1934-4-8 8767 Contra Costa head of Arroyo Cayetano; Mount Diablo, Arroyo Cayetano 609 Comment
  UC1713668  Scutellaria tuberosa unknown 1027 Contra Costa Walnut Creek Comment
  UC2029121  Scutellaria tuberosa Barbara Ertter with David Gowen and Mike Park 2004-4-13 18352 Contra Costa Black Diamond Mines Regional Park south of Pittsburg, trail system in chaparral/woodland S of Somersville townsite. Comment
  RSA0055044  Scutellaria tuberosa Jim Shevock 1971-4-7 916 Contra Costa Mt. Diablo St. Park. 548 Comment
  UC2029001  Scutellaria tuberosa Barbara Ertter 2000-3-30 16920 Contra Costa North side of Mount Diablo, in chaparral near base of Back Canyon Trail. Comment
  UC2028307  Sedum radiatum Barbara Ertter, Susan D'Alcamo 1998-6-12 16196 Contra Costa East end Bald Ridge Trail W of Prospectors Gap on north side of Mount Diablo summit. Comment
  UC692326  Sedum spathulifolium Mary L. Bowerman 1931-4-19 750 a Contra Costa on Mitchell Rock , on Mitchell Rock (Mount Diablo) Comment
  CAS-BOT-BC363290  Senecio aronicoides Alice Eastwood 1922-5-14 11319 Contra Costa Mt. Diablo Comment
  UC691353  Senecio aronicoides Mary L. Bowerman 1930-6-10 304 Contra Costa summit Meridian Peak (Mount Diablo); , Meridian Peak summit Comment
  RSA762308  Senecio glomeratus William J. Ferlatte, L. Maynard Moe 1970-4-27 1266 Contra Costa San Francisco Bay, Red Rock Island. Comment
  JEPS37435  Senecio sylvaticus W. L. Jepson 1943-4-24 20762 Contra Costa vicinity San Francisco Bay; Oakland Hills, Moraga Ridge Comment
  JEPS100174  Senecio vulgaris G. Smick 2003-5-1 GAS 162 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1050201  Sequoia sempervirens N. Floy Bracelin 1942-12-13 1712 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC2062676  Sequoia sempervirens Barbara Ertter with Dan Norris 2000-12-3 Contra Costa Mount Diablo, west fork of Sycamore Canyon. Comment
  CDA33621  Sesbania punicea Lepando 2010-7-14 PDR# 1645158 Contra Costa Concord; Rancho Diablo Clubhouse, 355 Vista Grande 0 Comment
  CDA23918  Sesuvium verrucosum D. G. Kelch 2006-7-14 6 .329 Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  CHSC99212  Sesuvium verrucosum John Dittes 2006-10-26 1411 Contra Costa San Joaquin Valley (foothills near nw edge); ~2.0 air-mile south of Marsh Creek Reservoir Gauging Station, 1.6 air-mile southwest of intersection of Camino Diablo and Vasco Road; Contra Costa Water District's Los Vaqueros Watershed Mitigation Project Area. 67 Comment
  JEPS12499  Sherardia arvensis W. L. Jepson 1896-5-31 Contra Costa Wildcat Creek; Berkeley Comment
  UC1795725  Sherardia arvensis Barbara Ertter, Mary Bowerman, Lisa Schultheis 1995-3-31 13941 Contra Costa Mount Diablo State Park, lower end of Mitchell Canyon south of Clayton, open oak woodland/grassland open flat area on east side of stream not far from trail head. 182 Comment
  RSA720804  Sherardia arvensis Barbara Ertter, Mary Bowerman, Lisa Schultheis 1995-3-31 13941 Contra Costa Mount Diablo State Park. Lower end of Mitchell Canyon S of Clayton. 183 Comment
  JEPS25157  Sidalcea malviflora subsp. laciniata G. Thomas Robbins with John Weiler 1959-5-23 4028 Contra Costa slopes on the w side Brooks Island (Richmond); San Francisco Bay, Richmond Comment
  UC18898  Sidalcea malviflora subsp. laciniata W. H. Brewer 1862-4-30 1002 Contra Costa Camp 69 Walnut Creek, Camp 69 Comment
  CDA31177  Silene gallica D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .219 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  SJSU10109  Silene gallica R. L. Fisher 1958-5-10 Contra Costa Nortonville near Clayton Comment
  UC606751  Silene gallica Edward Lee 1936-4-19 1992 Contra Costa Red Rock San Francisco Bay, Red Rock (summit of the island) 54 Comment
  JEPS100172  Silybum marianum G. Smick 2003-5-15 GAS 193 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  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
  UC2028548  Sinapis arvensis Barbara Ertter 1998-4-4 15959 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, west base of northwestern-most ridge. Comment
  JEPS128771  Sisymbrium orientale Kevin Hintsa May 1995 Contra Costa Mount Diablo State Park, Bridal Nook Picnic Area. Comment
  CDA21559  Sisyrinchium bellum D. G. Kelch, D. A. Weinstein 2008-4-25 8 .075 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
Read comments
Jan 7 2016
  UC2070662  Sisyrinchium bellum Barbara Ertter 2002-5-16 17861 Contra Costa Richmond Field Station (UC-Berkeley). Comment
  UC1618167  Solanum americanum Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10879 Contra Costa just w of Antioch Marina (Dow Wetlands Preserve, levee at n-center of preserve, at end of road); Dow Wetlands Preserve Comment
  UC691761  Solanum americanum Mary L. Bowerman 1931-8-29 1029 Contra Costa Mount Diablo, Sheep Camp Spring, by west road Sheep Camp Spring; Mount Diablo, Sheep Camp Spring Comment
  CDA14345  Solanum aviculare R. Fonseca 1995-4-27 s.n. Contra Costa 1373 Elizabeth Court, Walnut Creek. 0 Comment
  CDA5969  Solanum lanceolatum M. S. Bergseng, R. DeBoer 1959-8-14 2943 Contra Costa 2459 Alva, El Cerrito. 0 Comment
  UC2012998  Solanum nigrum Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14924 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  JEPS100154  Solanum umbelliferum G. Smick 2003-3-13 GAS 68 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  NY853874  Solanum umbelliferum M. L. Bowerman 1975-5-11 s.n. Contra Costa Mount Diablo. Back Creek. Comment
  POM280561  Solanum umbelliferum Lyman D. Benson 1931-3-18 2658 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  SEINET6186041  Solanum umbelliferum P. Del Monte 1976-3-28 s.n. Contra Costa Morgan Territory Rd., 1 miles north of Curry Creek Park 122 Comment
  CAS-BOT-BC364902  Solidago velutina subsp. californica John Thomas Howell 1925-10-20 1525 Contra Costa Moraga Ridge Comment
  JEPS75557  Sonchus asper P. F. Yorks 1975-5-15 399 Contra Costa n Briones Reservoir (ca 1.8 km s of Bear Creek Road on Hampton Road); Hampton Road Natural Reserve 190 Comment
  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
  POM181428  Sonchus oleraceus I. L. Wiggins 1930-4-18 4608 Contra Costa Jersey Island. Comment
  CAS-BOT-BC374741  Sonchus oleraceus Walter Knight 1965-3-1 s.n. Contra Costa Antioch dunes Comment
  UC2070598  Sparganium eurycarpum subsp. eurycarpum Barbara Ertter with Chris Thayer and Dianne Lake 2001-5-26 17658 Contra Costa Stamm Unit of Antioch Dunes National Wildlife Refuge east of Antioch. Comment
  UC1795889  Spartina densiflora Barbara Ertter, Rich Rabeler 1994-6-18 12835 Contra Costa Pt. Pinole Regional Shoreline at north end of Richmond; beach on North side Whittell Marsh. Comment
  UC1818860  Spergula arvensis subsp. arvensis Barbara Ertter, Kristin Ertter 1995-7-11 14467 Contra Costa Diablo Foothills Regional Park, dried road bed at base of east-facing cliff. 121 Comment
  HSC4243  Spergularia macrotheca Greg Bos 1963-3-9 30 Contra Costa Point Isabel, Richmond 3 Comment
  CDA9448  Spergularia macrotheca var. longistyla D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .226 Contra Costa Byron Airport. Comment
  JEPS111787  Spergularia macrotheca var. macrotheca D. G. Kelch 2005-3-24 05 .48 Contra Costa Point Pinole Pt. Pinole near wharf 2 Comment
  SEINET3840816  Spergularia marina Unknown 2006-7-14 6 .328 Contra Costa East of Martinez, Along Marine Vista avenue immediately west of Pacheco Slough 1 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
  CAS-BOT-BC390536  Spergularia media Lewis S. Rose 1941-3-17 41034 Contra Costa 3 mi. s. of Byron 6 Comment
  UC2043056  Spergularia villosa Barbara Ertter with Brad Olson 1991-10-13 10855 Contra Costa SW corner of Point Richmond, hillside across road from George Miller Jr. Regional Park. Comment
  JEPS21817  Stachys ajugoides J. Robison 1958-5-17 68 Contra Costa Vacant lot on 6th St. Albany 7 Comment
  POM215114  Stachys ajugoides J. T. Howell 1932-10-16 10818 Contra Costa Near San Ramon. Comment
  JEPS75488  Stachys ajugoides var. rigida P. F. Yorks 1975-5-31 426 Contra Costa ca. 1.5 km s Bear Creek Road (on Hampton Road, n of Briones Reservoir); Hampton Road Natural Preserve 160 Comment
  UC2055620  Stachys pycnantha Joseph Andorfer Ewan 1933-10-15 8043 Contra Costa Mt. Diablo 1066 Comment
  UC1328148  Stellaria nitens Olive Dyer 1937-4-18 290 Contra Costa abandoned road up Madrone Canyon tributary (Wildcat Canyon); Wildcat Canyon Comment
  UC2027728  Stellaria pallida Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15508 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UC2028059  Stellaria pallida Barbara Ertter, Tony Morosco 1998-4-12 16015 Contra Costa Mount Olympia on north side of Mount Diablo. Comment
  SEINET238945 Image available Stenotaphrum secundatum Beecher Crampton 1966-10-18 7817 Contra Costa Kensington Berkeley Hills Blake Garden UC Berkeley Department of landscape architecture. Comment
  UC1606432  Stephanomeria elata Barbara Ertter, Brad Olson 1993-10-30 12284 Contra Costa Carquinez Strait Regional Shoreline/Trail west of junction of San Pablo Avenue and Vista del Rio west of Crockett. Comment
  UCD150892  Stephanomeria virgata James A. Neilson Jr.; Samuel A Bamberg 1975-10-22 3492 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  RSA39905  Stephanomeria virgata P. A. Munz 1947-10-8 12206 Contra Costa Antioch 8 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
  CHSC116631  Stipa pulchra Lowell Ahart; Josephine Guardino 2016-4-19 29793 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides ot the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  JEPS127235  Stipa pulchra Lowell Ahart, Josephine Guardino 2016-4-19 20793 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest to Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  UC2028379  Stipa pulchra Barbara Ertter 1998-6-20 16243 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo,below picnic ground at Old Borges Ranch Comment
  UC2028403  Stipa pulchra Barbara Ertter with Christopher Baysdorfer 1998-5-10 16121 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, quarry area on west side Comment
  CAS-BOT-BC87100  Streptanthus glandulosus subsp. glandulosus Mary L. Bowerman 1935-5-8 2968 Contra Costa Mount Diablo. West road 2 miles from entrance. 237 Comment
  JEPS108223  Streptanthus glandulosus subsp. glandulosus David Gowen 2005-5-6 279 Contra Costa Mt. Diablo State Park. South east end of Prospectors Gap Rd., ca 0.3 mile NW of its junction with Ray Morgan Rd. Small area of serpentine outside of the park boundary. Comment
  CAS-BOT-BC87336  Streptanthus hispidus E. W. Hicks 1917-3-25 114 Contra Costa West shoulder of Mount Diablo. 762 Comment
  CAS-BOT-BC87343  Streptanthus hispidus L. R. Abrams 1921-5-25 8059 Contra Costa Summit Mount Diablo. Comment
  UC629716  Streptanthus hispidus H. L. Mason 1938-5-3 11751 Contra Costa trail between Juniper Camp and Deer Flat; Mount Diablo 990 Comment
  RSA721273  Stuckenia filiformis Barbara Ertter 1996-5-11 14644 Contra Costa North Gate Road at northwest base of Mount Diablo, Ticle Pond west of road toward Castle Rock. Comment
  UCD163490  Stuckenia striata D. Slakey; CNPS Volunteers 2015-9-12 223 Contra Costa Junction Suisun Bay and New York Slough, between Browns Island and Pittsburg Marina. 0 Comment
  CAS-BOT-BC422907  Stylomecon heterophylla Paul F. Covel 1936-5-17 156 Contra Costa Mt Diablo, on trail summit-north peak. Comment
  UC112847  Stylomecon heterophylla T. S. Brandegee 1908-4-10 Contra Costa near Antioch; near Antioch Comment
  POM300582  Stylomecon heterophylla Mary L. Bowerman 1932-5-6 1410 Contra Costa Mount Diablo; Mitchell Canyon: West bank by floor of canyon 183 Comment
  RSA66297  Stylomecon heterophylla Lincoln Constance, J. L. Morrison 1938-4-5 2193 Contra Costa NW base of Mount Diablo, 6 miles SE of Walnut Creek, Coast Ranges Comment
  SEINET12102845  Stylomecon heterophylla C. C. Parry, Lemmon, J. G. 1876-1 s.n. Contra Costa Mt. Diablo Comment
  UC2062637  Stylomecon heterophylla Barbara Ertter with David Gowen, Mike Park 2004-4-13 18350 Contra Costa Black Diamond Mines Regional Park south of Pittsburg, junction of Arata Overlook Trail and River View Loop Trail. Comment
  UC7235  Suaeda moquinii T. J. Storer Sep 1899 Contra Costa Byron Springs Comment
  CAS-BOT-BC269564  Symphoricarpos albus var. laevigatus L. R. Abrams 1916-6-30 5720 Contra Costa Mt. Diablo near lake Comment
  CAS-BOT-BC269558  Symphoricarpos albus var. laevigatus Mary L. Bowerman 1930-8-24 419 Contra Costa Mount Diablo. Mitchell Canyon, little above end of road Comment
  JEPS111771  Symphoricarpos mollis D. G. Kelch 2004-5-2 04 .162 Contra Costa Crockett - Edwards Canyon Edwards Canyon, Crockett, Contra Costa County, CA 125 Comment
  UC2046323  Symphyotrichum lanceolatum var. hesperium Barbara Ertter 2000-9-2 17520 Contra Costa Sobrante Ridge Preserve in hills southeast of El Sobrante, north of trailhead from Heavenly Ridge entrance. Comment
  JEPS125628  Symphyotrichum lentum Daniel Slakey with CNPS Volunteers 2015-9-12 225 Contra Costa Browns Island, northern part of Crooked Slough. Comment
  UC1594169  Symphyotrichum lentum Jerry Powell 1991-8-15 1613 Contra Costa Antioch National Wildlife Refuge Comment
  UCD150915  Symphyotrichum lentum James A. Neilson Jr. 1972-10-1 s.n. Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 0 Comment
  JEPS103102  Symphyotrichum subspicatum Mary L. Bowerman 1993-10-19 Contra Costa Marsh Creek near Russelman Foad Mount Diablo Comment
  JEPS99582  Symphyotrichum subspicatum Mary Bowerman 1993-11-8 Contra Costa Mount Diablo. by tributary of Pine Creek southerly form just east of Pine Pond; North of tiny pond shown on MDIA map, 4th edition. (NW of Wall Pt. road junction) 243 Comment
  CAS-BOT-BC211591  Tamarix Walter Knight 1978-10-4 3316 Contra Costa Browns Island, near old homestead site. Comment
  UC19168  Tamarix parviflora J. Burtt Davy 1895-4-13 1013 Contra Costa Lafayette Comment
  UC21431  Tauschia hartwegii Jos. Burtt Davy 1901-4-21 7045 Contra Costa Wildcat Canyon Comment
  JEPS22095  Tetragonia tetragonoides G. Thomas Robbins 1958-7-19 3906 Contra Costa about 3/4 mi s of Point San Pablo (Point Orient, Potrero San Pablo, Richmond); San Francisco Bay, Point Orient, Potrero San Pablo Comment
  UC1819074  Tetragonia tetragonoides Barbara Ertter, Drew Hansen 1995-3-28 13935 Contra Costa Chevron oil refinery in northwest Richmond off of Castro St., south of Wildcat Creek Comment
  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
  CDA29193  Thinopyrum elongatum D. G. Kelch 2008-6-15 8 .248 Contra Costa Carquinez Strait; Crockett hills, S of Cummings Skyway, W of Crockett Blvd. Comment
  CAS-BOT-BC88248  Thysanocarpus curvipes Alice Eastwood 1915-5-30 4554 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC88260  Thysanocarpus curvipes Lewis S. Rose 1933-4-17 33096 Contra Costa Antioch. 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
  UC11030  Thysanocarpus curvipes subsp. curvipes Brewer 1862-1 Contra Costa Mount Diablo Comment
  POM300996  Tonella tenella Mary L. Bowerman 1935-5-18 3023 Contra Costa Mount Diablo, Northwest facing slope across the road from, and a little east of, the parking area. 1067 Comment
  UC1818959  Torilis arvensis Barbara Ertter, Kristin Ertter 1995-7-11 14480 Contra Costa Pine Creek on West side of Mt. Diablo southwest of Walnut Creek; partial shade of oak forest, road along Pine Cr. in Diablo Foothills Regional Park 152 Comment
  UC2027969  Torilis arvensis Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15661 Contra Costa North base of Mount Diablo, lower end of Mitchell Canyon. Comment
  JEPS127668  Torilis nodosa Barbara Ertter with David Gowen and Michael Park 2017-5-2 22816 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  UC1795727  Torilis nodosa Barbara Ertter, Mary Bowerman 1995-6-11 14254 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, bank of Indian Creek above Indian Valley Pond, partial sun on Franciscan layer. 76 Comment
  JEPS63916  Toxicodendron diversilobum W. L. Jepson 1931-4-5 15716 Contra Costa Nortonville n.e. Contra Costa Co., Nortonville Comment
  CAS-BOT-BC172938  Toxicodendron diversilobum B. Lacoste 1920-10-1 s.n. Contra Costa On hill slope by Lake Aliso Comment
  UCD139856  Toxicoscordion fremontii Laurence S. Jones 1934-4-8 s.n. Contra Costa Mount Diablo. 609 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
  UC570718  Trichostema lanceolatum Herbert L. Mason 1923-11-12 854 Contra Costa Mount Diablo, middle slopes Comment
  CDA23601  Trifolium albopurpureum D. G. Kelch 2008-4-12 8 .035 Contra Costa Mt Diablo. Mitchell Canyon. Along road looping north of main Mitchell Canyon Rd. Comment
  JEPS65687  Trifolium albopurpureum W. L. Jepson 1923-4-22 9860 Contra Costa Mount Diablo Comment
  UC148547  Trifolium albopurpureum var. albopurpureum Katharine Brandegee 1909-4-24 Contra Costa Antioch Comment
  UC1795831  Trifolium albopurpureum var. albopurpureum Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14588 Contra Costa North Peak of Mt. Diablo; open rocky flats. 1097 Comment
  UC16612  Trifolium albopurpureum var. dichotomum Jos. Burtt Davy 1901-4-21 7048 Contra Costa Wildcat Canyon Comment
  UC16439  Trifolium bifidum var. bifidum W. H. Brewer 1862-5-29 1184 Contra Costa Camp 71 Marsh's Ranch; Marsh's Ranch, Camp 71, Contra Costa Co. Comment
  UC1618339  Trifolium bifidum var. decipiens Barbara Ertter, Chris Thayer 1993-5-7 11714 Contra Costa 1/2 mi n of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land e of Tilden Park (s of Wildcat Canyon Road); East Bay Municipal Utilities District land Comment
  UC631337  Trifolium bifidum var. decipiens Mrs. K. Brandegee 1907-5-1 Contra Costa Antioch Comment
  UC692242  Trifolium bifidum var. decipiens Mary L. Bowerman 1935-4-19 2872 Contra Costa ca 7 mi w entrance (Northgate) (by rd, ridge w of the power poles, above the rd junction); Mount Diablo 670 Comment
  CDA4301  Trifolium campestre D. G. Kelch, A. G. Murdock 2005-5-6 5 .22 Contra Costa Carquinez Strait Region; Franklin Canyon. East of Christie Road. South of Route 4. Comment
  CDA27926  Trifolium ciliolatum D. G. Kelch, A. G. Murdock 2003-4-3 3 .35 Contra Costa Carquinez Strait Region; Cummings Skyway. South of Cummings Skyway and Crockett Boulevard. Comment
  CDA28873  Trifolium ciliolatum D. G. Kelch, Jessica Kolman 2009-5-29 9 .312 Contra Costa Carquinez Strait; Pinole Valley Park, near ridgetop. Comment
  UC517489  Trifolium ciliolatum John Thomas Howell 1933-5-14 11245 Contra Costa e St. Mary's College (hills) Comment
  UC692252  Trifolium ciliolatum Mary L. Bowerman 1932-5-6 1422 Contra Costa Mitchell Canyon Mount Diablo Comment
  POM300693  Trifolium ciliolatum Mary L. Bowerman 1933-5-11 2082 Contra Costa Inner Black Hills east of South Road. Comment
  CHSC116610  Trifolium depauperatum var. amplectens Lowell Ahart; Josephine Guardino 2016-4-19 20756 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 dmiles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  UC165565  Trifolium depauperatum var. amplectens Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  UC165574  Trifolium depauperatum var. amplectens J. Burtt Davy 943 Contra Costa Antioch Comment
  UC165575  Trifolium depauperatum var. amplectens J. Burtt Davy Apr 7-8 1895 944 Contra Costa Antioch Comment
  UC1819261  Trifolium depauperatum var. amplectens Barbara Ertter, Mary Bowerman et al. 1995-5-7 14045 Contra Costa Three Springs Trail on northeast side of Mt. Diablo southeast of Clayton, grassy flat, roadside vegetation, clay substrate. Comment
  UCD108372  Trifolium depauperatum var. depauperatum P. B. Kennedy Date Unknown s.n. Contra Costa Vicinity of Bryon Springs, Greene. Comment
  UC16570  Trifolium depauperatum var. hydrophilum J. Burtt Davy 1900-3-24 6529 Contra Costa near Santa Fe townsite (Pt. Richmond) 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
  POM301858  Trifolium depauperatum var. truncatum Mary L. Bowerman 1932-3-23 1125 Contra Costa Oak Grove School junction, between Monument and Concord 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
  UC16512  Trifolium fucatum W. H. Brewer 1862-5-1 1040 Contra Costa s Camp 69; Walnut Creek Comment
  UC764679  Trifolium fucatum R. F. Hoover 1941-4-12 4837 Contra Costa 1 mi n Lone Tree Valley Comment
  SEINET12147993  Trifolium fucatum Unknown 1878-1 s.n. Contra Costa Near Mt. Diablo Comment
  UCD109022  Trifolium fucatum P. B. Kennedy 1929-4-21 10229 Contra Costa Franklin Canyon Road from Concord Soldier's Monument. Comment
  UCD109123  Trifolium fucatum P. B. Kennedy 1928-4-28 10097 Contra Costa 2 miles from Tunnel, along highway. Comment
  RSA195421  Trifolium fucatum var. fucatum C. P. Smith 1922-5-20 3532 Contra Costa Lafayette - trolly line. Comment
  UC2027836  Trifolium glomeratum Barbara Ertter, Mary Bowerman 2001-4-28 17619 Contra Costa Clayton Ranch (East Bay Regional Parks) on north side of Marsh Creek Road east of Mount Diablo. Comment
  LA205246  Trifolium gracilentum John Thomas Howell; 1933-5-14 11264 Contra Costa E of St. Mary's College Comment
  UC16559  Trifolium gracilentum W. H. Brewer 1862-4-30 1010 Contra Costa Camp 69 Walnut Creek Comment
  UC555592  Trifolium gracilentum H. L. Mason 1928-4-13 4301 Contra Costa Richmond waterfront Comment
  JEPS65906  Trifolium gracilentum var. gracilentum W. L. Jepson 1925-4-26 10688 Contra Costa Black Hills Mt. Diablo Comment
  CDA23566  Trifolium hirtum D. G. Kelch, D. A. Weinstein 2008-4-2 08 .032-b Contra Costa Carqinez Strait; E Richmond. Hilltop Rd. Chevy s Hill. Comment
  CDA8356  Trifolium hirtum D. G. Kelch, A. G. Murdock 2005-4-15 5 .148 Contra Costa Carquinez Strait; In East Bay Regional Park land W of Cumming s Skyway near Summit (nr old C&H Sugar diatomaceous earth dump). Comment
  CHSC116653  Trifolium hirtum Lowell Ahart; Josephine Guardino 2016-4-19 20759 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Field on the west side of the gravel road, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  JEPS99601  Trifolium hirtum Mary Bowerman 1995-5-21 Contra Costa Mount Diablo, Wall Pt. fire road perhaps 1/2 mile from South Gate Rd., near Tom Brumleve's home; also other places along North Gate Rd. 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
  CDA29061  Trifolium microcephalum D. G. Kelch 2006-5-7 6 .149 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  UC631555  Trifolium microcephalum P. B. Kennedy 1925-4-25 Contra Costa rd to Sycamore Canyon; Mt Diablo Comment
  UC400151  Trifolium microdon Ynes Mexia 1929-4-21 2380 Contra Costa Moraga Valley Comment
  UC1795804  Trifolium microdon Barbara Ertter, Lisa Schultheis 1995-4-27 14008 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; northwest side of open grassy ridge at end of Arbolado Dr. 121 Comment
  CDA28014  Trifolium oliganthum D. G. Kelch, A. G. Murdock 2005-3-25 5 .089 Contra Costa Carquinez Strait Region; Pinole Peak. Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and north of Pinole Peak. Comment
  CDA28015  Trifolium oliganthum D. G. Kelch, A. G. Murdock 2005-4-15 5 .15 Contra Costa Carquinez Strait Region; Rodeo Creek. EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  RSA0033854  Trifolium oliganthum Barbara Ertter 2003-3-28 18135 Contra Costa Round Valley Regional Preserve, mid Hardy Canyon along High Creek. 182 Comment
  UC866918  Trifolium oliganthum Lewis S. Rose 1940-4-30 40252 Contra Costa 6 mi e Clayton (Marsh Creek) 60 Comment
  POM300712  Trifolium oliganthum Mary L. Bowerman 1931-4-5 680 Contra Costa South of Russelman Park. 381 Comment
  RSA0027700  Trifolium oliganthum Barbara Ertter, Dan Norris 2001-4-15 17609 Contra Costa West side Mount Diablo, head of W-facing drainage west of China Wall rock formation (off trail between Hanging Valley Trail and China Wall Road). 274 Comment
  SEINET10577416  Trifolium tridentatum var. tridentatum A. Arthur Heller 1908-4-16 Heller s.n. Contra Costa Sand hills east of Antioch 23 Comment
  CAS-BOT-BC26494  Trifolium triflorum M. K. Curran 1883-1-1 s.n. Contra Costa Near Mt. Diablo Comment
  POM194557  Trifolium variegatum var. melananthum Y. Mexia 1929-4-21 20379 Contra Costa Moraga Valley Comment
  JEPS4408  Trifolium variegatum var. variegatum W. L. Jepson 1891-6-9 13707 Contra Costa Fish Ranch Comment
  CDA29759  Trifolium willdenovii D. G. Kelch, Troy MacGregor 2009-5-1 9 .264 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  POM349559  Trifolium willdenovii H. de Forest 1930-4-6 s.n. Contra Costa Near Antioch. Comment
  UC1130132  Trifolium willdenovii C. M. Belshaw 1936-4-8 2071 Contra Costa 2.25 mi e Clayton; Mt. Diablo quad 381 Comment
  UC1377676  Trifolium willdenovii W. J. Dress 1951-5-9 3311 Contra Costa just w Orinda Comment
  UC407376  Trifolium willdenovii Ira L. Wiggins 1930-4-17 4575 Contra Costa 1/4 mi s Byron Comment
  POM18879  Trifolium willdenovii H. P. Chandler 1901-3-22 841 Contra Costa Concord. Comment
  UC1818873  Triglochin maritima Barbara Ertter, Brad Olson 1994-5-7 12765 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay. Edge of marsh. Comment
  UC1619920  Triglochin striata Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10714 Contra Costa Browns Island n of Pittsburg (near confluence of Sacramento and San Joaquin Rivers opposite Pittsburg Marina, at (Botany Cove)); Browns Island Comment
  JEPS73687  Triphysaria eriantha subsp. eriantha L. R. Heckard with Wm. Hirano and Ted Niehaus 1968-3-5 1756 Contra Costa along Byron-Bethany road at junction of Holey Road about 3 mi se Byron 7 Comment
  UC407378  Triphysaria eriantha subsp. eriantha Ira L. Wiggins 1930-4-17 4571 Contra Costa 1/4 mi s Byron Comment
  CDA29048  Triphysaria pusilla D. G. Kelch 2006-5-7 6 .157 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. 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
  CDA41896  Triphysaria versicolor subsp. faucibarbata D. G. Kelch 2005-3-26 5 .097 Contra Costa Carquinez Strait Region; Pinole Peak. Fernandez Ranch, south side - road from Perreria Road to Pinole Peak Ridge. Comment
  UCD36927  Trisetum canescens Beecher Crampton 1956-5-14 3423 Contra Costa 2 miles west of Martinez, on road to Crockett. Comment
  CDA9474  Triteleia laxa D. G. Kelch 2004-3-13 4 .039 Contra Costa East Bay; Corner of Deer Valley Rd. and Briones Valley Rd. Comment
  JEPS58065  Triteleia laxa W. L. Jepson 1918-6-3 7569 Contra Costa Donner Canyon Mt. Diablo 304 Comment
  RSA378002  Triteleia laxa D. G. Nichols 1940-3-31 4 Contra Costa 5 miles west Byron on road from Byron to Clayton 146 Comment
  RSA760668  Triteleia laxa William J. Ferlatte, L. Maynard Moe 1970-4-27 1229 Contra Costa San Francisco Bay, Red Rock Island. Comment
  SEINET3889041  Triteleia laxa John Thomas Howell 1931-5-12 6468 Contra Costa Oakland Hills.; 0 Comment
  UC136962  Tropidocarpum gracile K. Brandegee April, 1889 Contra Costa Antioch Comment
  UC673338  Tropidocarpum gracile H. L. Mason 1929-3-31 5148 Contra Costa in pastures Briones Valley Comment
  UC691063  Tropidocarpum gracile Mary L. Bowerman 1933-3-18 1750 Contra Costa floor of canyon above Olafson's; Mount Diablo, Curry Canyon Comment
  CDA1419  Typha angustifolia D. G. Kelch, Andrew G. Murdock 2003-8-13 3 .105 Contra Costa Carquinez Strait Region; Martinez Marsh. Comment
  UC2028448  Typha angustifolia Barbara Ertter with Chris Thayer 1996-10-25 15386 Contra Costa West side of Mount Diablo, North Gate Road 0.4 road miles below junction, Jill Creek Comment
  UC692072  Typha latifolia Mary L. Bowerman 1938-6-14 3677 Contra Costa Mineral Spring Mount Diablo (along streamlet); , Mineral Spring 350 Comment
  UC2028519  Typha latifolia Barbara Ertter 1996-11-24 15429 Contra Costa West side of Mount Diablo, Pine Pond along Stage Road in Pine Canyon. Comment
  SD45082  Ulex europaeus W. W. Jones 1927-10-27 Contra Costa Crockett Comment
Read comments
Jul 11 2010
  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-BC91090  Umbellularia californica Alice Eastwood 1922-3-17 11086 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
  JEPS112487  Umbellularia californica D. G. Kelch 2003-2-7 03 .37.B Contra Costa Franklin Canyon 115 Comment
  CAS-BOT-BC381828  Uropappus lindleyi Mary L. Bowerman 1935-4-17 2831 Contra Costa Mount Diablo. West road 2 miles from entrance 237 Comment
  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
  UC691782  Uropappus lindleyi Mary L. Bowerman 1933-5-18 2137 Contra Costa Mount Diablo Comment
  JEPS35632  Uropappus lindleyi W. L. Jepson 1896-5-31 Contra Costa Wild Cat Canyon Comment
  UC1818992  Uropappus lindleyi Barbara Ertter, Lisa Schultheis 1995-4-27 14010 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; northwest side of open grassy ridge at end of Arbolado Dr. 121 Comment
  UC2027813  Uropappus lindleyi Barbara Ertter with Stu Garrett 1997-3-29 15532 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. 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
  UC1050820  Verbascum olympicum N. Floy Bracelin 1943-5-30 1352 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC454110  Verbena hastata I. J. Condit 1908-8-20 Contra Costa Oakley Comment
  RSA29666  Verbena lasiostachys var. lasiostachys Joseph A. Ewan 1936-7-5 9719 Contra Costa Reservoir road, Wildcat Creek. Comment
  CDA40699  Verbena lasiostachys var. scabrida D. G. Kelch 2005-7-14 5 .461 Contra Costa Carquinez Strait Region; Upper Canada del Cierbo. Comment
  UC1124419  Verbena lasiostachys var. scabrida H. S. Yates 1934-9-2 4069 Contra Costa 1 mi sw Mt Diablo; Mt Diablo Quadrangle Comment
  UC691756  Verbena lasiostachys var. scabrida Mary L. Bowerman 1930-9-27 464 Contra Costa West base spring (2 miles by road from North Gate, take trail to west; follow to fence, go through). Comment
  RSA128371  Verbena robusta Peter H. Raven 1950-7-5 2489 Contra Costa Mt Diablo. 396 Comment
  JEPS127090  Veronica peregrina Lowell Ahart, Josephine Guardino 2016-4-19 20781 Contra Costa 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  CHSC116626  Veronica peregrina subsp. xalapensis Lowell Ahart; Josephine Guardino 2016-4-19 20781 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Below the high water line of Los Vaqueros Reservoir, 1.4 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  UC691653  Veronica peregrina subsp. xalapensis Mary L. Bowerman 1931-4-4 664 Contra Costa w of Turtle Rock (Mount Diablo); Mount Diablo Comment
  POM181452  Veronica peregrina subsp. xalapensis I. L. Wiggins 1930-4-17 4581 Contra Costa 1/4 mi. S. of Byron. Comment
  CHSC21626  Veronica serpyllifolia subsp. serpyllifolia Willis Ball 1975-3-26 510 Contra Costa Contra Loma Regional Park. In area #1. On s side of lake ca. 50 yds e of restroom facilities. 30 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