Search Results — 2000 specimen records retrieved (1354 records with coordinates)
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Results for search: County=CONTRA COSTA; Source=All;   

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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)
 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
 Records are made available under the CCH Data Use Terms.
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UC1357059  Abies bracteata Rimo Bacigalupi 1960-4-4 7360 Contra Costa w slopes of upper Wildcat Canyon (on short side of road to the corporation yard.); Tilden Regional Park, Berkeley Hills 297 Comment
  UC2029096  Acacia cyclops Barbara Ertter 1990-10-14 9660 Contra Costa Point Isabel Regional Shoreline on San Francisco Bay in SW El Cerrito, at end of Rydin Road. Comment
  RSA0029772  Acacia cyclops Barbara J. Ertter 1990-10-14 9660 Contra Costa Point Isabel Regional Shoreline on San Francisco Bay in SW El Cerrito, on abandoned railroad track at end of Rydin Road. Comment
  JEPS112392  Acacia dealbata Dean G. Kelch and Andrew G. Murdock 2005-5-13 05 .232 Contra Costa Crockett; County: Contra Costa; West Crockett, below Dead Fish Restaurant along Carquinez Straight. Comment
  SD45087  Acacia verticillata W. W. Jones 1927-4-5 Contra Costa Crockett Comment
  JEPS75525  Acer macrophyllum P. F. Yorks 1976-4-6 124 Contra Costa on Hampton Road ca 1.7 km s Bear Creek Road (e of road, n of Briones Reservoir); Hampton Road Natural Reserve 200 Comment
  UC18109  Acer macrophyllum Harley P. Chandler 1901-4-5 941 Contra Costa Mt. Diablo Comment
  UC1199010  Acer negundo Joseph P. Tracy 1934-4-30 13187 Contra Costa Lafayette 152 Comment
  UC2028958  Acer negundo Barbara Ertter 2000-7-16 17379 Contra Costa Castle Rock Regional Recreation Area on SW flank of Mount Diablo, lower Pine Creek with sporadic surface water Comment
  CAS-BOT-BC334178  Acer negundo var. californicum Annetta Carter 1937-4-4 1229 Contra Costa Creek bank, Moraga Valley, 2.5 miles north of Moraga 182 Comment
  SEINET3195242 Image available Acer negundo var. californicum Annetta Carter 1937-4-4 1229 Contra Costa Creek bank, Moraga Valley, 2.5 miles north of Moraga 180 Comment
  UC588154  Acer negundo var. californicum Annetta Carter 1937-4-4 1229 Contra Costa 2 1/2 mi n Moraga (Creek bank, Moraga Valley); Moraga Valley, n of Moraga 182 Comment
  UC588153  Acer negundo var. interior Annetta Carter 1937-3-28 1227 Contra Costa 2 1/2 mi n Moraga (Moraga Valley); , Creek bank, n of Moraga 182 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
  SEINET242634 Image available Achnatherum thurberianum M. E. Barkworth, S. W. L. Jacobs; Betty Jacobs 2003-4-7 2003 /4 Contra Costa Tilden Regional Park, east of Berkeley Comment
  CAS-BOT-BC29881  Achyrachaena mollis C. F. Baker 1903-4-27 2795 Contra Costa near Byron Comment
  OBI48824  Achyrachaena mollis Joseph Andorfer Ewan 1935-5-26 9312 Contra Costa E slope Bald Peak, San Pablo Ridge 549 Comment
  SEINET10615056  Achyrachaena mollis John T. Middleton 1936-4-18 Middleton 144 Contra Costa Comment
  UC1543174  Achyrachaena mollis Donald G. Nelson 1937-4-18 501 Contra Costa towards Tracy on Marsh Creek Road Byron Comment
  UCD128425  Achyrachaena mollis L. S. Smith 1916-5-10 s.n. Contra Costa Grand View Terrace, San Pablo. Comment
  JEPS112409  Acmispon wrangelianus Dean G. Kelch and Andrew G. Murdock 2005-4-15 05 .152b Contra Costa Rodeo Creek; county: Contra Costa; EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  CDA19102  Acroptilon repens R. Fonseca 2000-10-24 PDR 041911 Contra Costa San Francisco Bay Region; Along Hwy 680 Contra Costa Blvd off-ramp on Monument St., Pleasant Hill. 0 Comment
Read comments May 27 2008
  CDA20180  Acroptilon repens A. Niang 2003-7-9 PDR 1406327 Contra Costa San Francisco Bay Area; 5225 Hidorn Ranch Rd, Brentwood. 0 Comment
  UCSB29426  Actaea rubra Havlik, Neil 1969-7-3 Contra Costa along Grizzly Pk. Trail on the northeast slope of Grizzly Pk., Berkeley Hills 426 Comment
  CAS-BOT-BC133154  Adenostoma fasciculatum Mrs. 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
  SEINET3449243  Adiantum jordanii Dean G. Kelch, Andrew G. Murdock 2004-2-12 AGM 206 Contra Costa Franklin Canyon, Franklin Canyon, McHarry Ranch Road 126 Comment
Read comments Sep 26 2014
  CAS-BOT-BC202597  Aesculus californica Peter H. Raven 1957-7-5 11054 Contra Costa Point Isabel Comment
  UC18188  Aesculus californica Ivar Tidestrom Jun 1895 Contra Costa 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
  UCD128633  Agoseris apargioides Morris Halperin 1929-4-21 s.n. Contra Costa Moraga Valley. Comment
  UC691457  Agoseris grandiflora var. grandiflora Mary L. Bowerman 1933-5-17 2107 Contra Costa branch of Curry due s Olafson's barn; Curry River 289 Comment
  SEINET6738507 Image available Agoseris heterophylla H. P. Chandler 1901-4-5 976 A Contra Costa Mt. Diablo Comment
  UCD128609  Agoseris heterophylla P. B. Kennedy 1925-4-26 s.n. Contra Costa Mt. Diablo. Comment
  JEPS36279  Agoseris heterophylla var. heterophylla W. L. Jepson 1922-5-23 9667 Contra Costa Mt. Diablo (north slope) Comment
  POM319553  Agrostis Patricia Wilder 1961-8-27 1066 Contra Costa Walnut Creek, near Calif. Hwy 24. 24 Stanley Court. 42 Comment
  CDA15254  Agrostis avenacea G. F. Hrusa, D. Crowe 1998-5-8 14385 Contra Costa Sacramento Delta; Dow Ecological Reserve on Dow Chemical property at Pittsburg. Comment
  RSA0029681  Agrostis avenacea Barbara Ertter, Tony Morosco 1998-9-18 16425 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, north quarry area [subsequently developed]. 122 Comment
  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
  CAS-BOT-BC127340  Agrostis exarata R. Bacigalupi 1922-9-24 s.n. Contra Costa Mitchell Canyon, north base of Mount Diablo. 213 Comment
  RSA0033846  Agrostis exarata Barbara Ertter 1999-7-17 16763 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, Rifle Range Road. Comment
  UC692381  Agrostis exarata Mary L. Bowerman 1933-8-26 2413 Contra Costa at and below Lower Canyon Spring; Mount Diablo 975 Comment
  UC2028498  Agrostis exarata Barbara Ertter 1999-6-12 16711 Contra Costa Black Hawk Ridge road on south side of Mount Diablo, road crossing at confluence of NE and E forks of Sycamore Creek Comment
  UC606759  Agrostis pallens Edward Lee 1936-4-19 2008 Contra Costa ne slope of island San Francisco Bay, Red Rock Comment
  RSA0029679  Agrostis pallens Barbara Ertter, Tony Morosco 1998-9-18 16433 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, above sand quarry [subsequently developed] on south side of Ygnacio Valley Road, SE slope below water tank. Comment
  RSA0033844  Agrostis stolonifera Barbara Ertter 2000-7-16 17383 Contra Costa Diablo Foothills Regional Park, along Pine Creek between Castle Rock Recreation Area and flood-control checkdam. 106 Comment
  JEPS100153  Ailanthus altissima A. Langston 2003-8-26 AL 81 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD55743  Aira caryophyllea Beecher Crampton 1956-5-14 3416 Contra Costa 1/2 mile west of Martinez, on road to Crockett. Comment
  UC2028028  Aira caryophyllea var. caryophyllea Barbara Ertter 1997-9-14 15805 Contra Costa West side of Mount Diablo, Dusty Road at north end of Wall Point Ridge. Comment
  RSA720795  Aira caryophyllea var. cupaniana Mary L. Bowerman 1995-5-28 s.n. Contra Costa Mount Diablo. Knoll, N. of Wall Pt. Trail. Trail to Pine Pond from Wall Pt. fire rd. 305 Comment
  UCD33561  Allenrolfea occidentalis Beecher Crampton 1970-3-10 8536 Contra Costa 1 mile S of Byron, Byron Hot Springs road. Comment
  UC3090  Allium acuminatum Edw. L. Greene 1892-1 Contra Costa Mt. Diablo Comment
  JEPS108218  Allium amplectens David Gowen 2005-4-30 271 Contra Costa Morgan Territory Regional Preserve. Just east and outside the park along Manzanita Trail. Growing on very rocky east facing slope. Comment
  JEPS47591  Allium falcifolium W. L. Jepson 1921-5-22 9212 Contra Costa Mt. Diablo Comment
  UC185478  Allium peninsulare var. peninsulare Katharine Brandegee May 1907 Contra Costa Antioch Comment
  UC494231  Allium serra Anna E. Ehlers 1920-4-25 571 Contra Costa Mt. Diablo Comment
  UC796584  Allium serra Reed C. Rollins 1946-3-25 3043 Contra Costa w slope of Mount Diablo Mount Diablo Comment
  CAS-BOT-BC475530  Allium serra Alice Eastwood 1914-3-14 3791 Contra Costa Byron Springs Comment
  CAS-BOT-BC475536  Allium serra L. R. Abrams 1921-5-15 8052 Contra Costa At Spring 4 1/2 miles from Summit, Mt Diablo Comment
  UC189380  Allium unifolium J. W. Congdon 1896-5-30 Contra Costa Mt. Diablo Comment
  UC3116  Allium unifolium State Survey 1174 Contra Costa Mt. Diablo Comment
  UC1819012  Allium unifolium Barbara Ertter, Mary Bowerman et al. 1995-5-7 14057 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, creek crossing on north-facing slope, edge of woods and open slopes. Comment
  JEPS108354  Allophyllum gilioides David Gowen 2005-4-3 223 Contra Costa Mt. Diablo State Park. Rhine Canyon just below Devils Elbow. Comment
  CAS-BOT-BC170932  Alnus rhombifolia Alice Eastwood 1914-2-24 3732 Contra Costa Antioch Comment
  UC2031467  Alnus rhombifolia Barbara Ertter with Brad Olson, Dianne Lake, Lynne Hosley and A. Youngson 1991-10-20 10861 Contra Costa Dow Wetlands Preserve, just W of Antioch marina Comment
  JEPS127677  Alopecurus saccatus Barbara Ertter with David Gowen and Michael Park 2017-5-2 22798 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  SEINET7085231  Althaea cannabina Steven R. Hill 2010-7-19 38532 Contra Costa Residence of Kristin Yanker-Hansen, 569 Contada Circle, Danville [94526]. Coordinate Datum: WGS84/NAD83. 122 Comment
  CDA3269  Amaranthus albus A. G. Murdock, D. G. Kelch 2004-5-28 303 Contra Costa Carquinez Strait; Luzon. Comment
  POM300587  Amaranthus albus Mary L. Bowerman 1932-8-27 1515 Contra Costa Pond south of Turtle Rock 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
  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
  CDA9966  Ambrosia chamissonis D. G. Kelch, A. G. Murdock 2004-7-9 4 .312 Contra Costa Carquinez Strait; Rodeo Shore. Rodeo Shoreline. Comment
  UC1584662  Ambrosia psilostachya Jerry Powell 1990-8-29 1585 Contra Costa Antioch National Wildlife Refuge Comment
  UC1714461  Amelanchier utahensis Jos. Burtt Davy 1901-4-21 Contra Costa Wildcat Canyon Comment
  UCD55999  Ammophila arenaria Morris Halperin; Earl J. Coke 1930-5-20 s.n. Contra Costa Sand near Antioch. Comment
  CHSC21836  Amsinckia Robert A. Schlising 1962-4-7 2150 Contra Costa In grass of roadside near Antioch Reservoir. Comment
  UC24599  Amsinckia J. Burtt Davy 1895-4-7 919 Contra Costa Antioch Comment
  CAS-BOT-BC222225  Amsinckia Alice Eastwood; John Thomas Howell 1936-4-19 2131 Contra Costa Nortonville Comment
  CAS-BOT-BC222227  Amsinckia Alice Eastwood; John Thomas Howell 1936-4-19 2131 Contra Costa Nortonville Comment
  CAS-BOT-BC222231  Amsinckia John Thomas Howell 1933-3-29 10916 Contra Costa Pittsburg Comment
  CAS-BOT-BC222303  Amsinckia douglasiana A. A. Heller 1938-4-9 15016 Contra Costa 3 miles southwest of Antioch Comment
  UC1178261  Amsinckia eastwoodiae R. Bacigalupi and Francia Chisaki 1957-3-27 914 Contra Costa 2.2 mi southeast of Byron (on Byron Highway) Comment
  UC78278  Amsinckia grandiflora T. S. Brandegee May 1887 Contra Costa Judsonville Comment
  UC1073377  Amsinckia intermedia George B. Rossbach 1955-3-20 457 Contra Costa sw base of Mount Diablo Comment
  UC1618223  Amsinckia intermedia Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8130 Contra Costa ca. 15 air mi. s.w. Stockton (w. and adjacent to Clifton Court Forebay) Comment
  RSA201409  Amsinckia intermedia J. T. Howell 1933-5-14 11225 Contra Costa St. Mary s College Comment
  UC1094090  Amsinckia intermedia Francia Chisaki 1954-3-25 569 Contra Costa 3.2 mi w of junction with road entering Mt. Diablo State Park (on road to; (road out of Walnut Creek)) Comment
  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
  UC762022  Amsinckia lunaris R. F. Hoover 1938-4-20 3178 Contra Costa lower end San Pablo Resevoir Comment
  UC24601 Image available Amsinckia lycopsoides J. Burtt Davy 1895-4-7 887 Contra Costa Antioch; ; Antioch, Contra Costa Co. Comment
  UC2028032  Amsinckia menziesii Barbara Ertter 1998-4-4 15946 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, SE of Indian Valley School. Comment
  UC2028213  Amsinckia menziesii Barbara Ertter with Richard K. Brummitt 1998-5-13 16133 Contra Costa Summit Road on Mount Diablo, base of rock outcrop/roadcut above Juniper Camp. Comment
  RSA0091254  Amsinckia tessellata Ira L. Wiggins 1930-4-17 4558 Contra Costa Roadside 1 mi. E of Mountain House on road to Byron. Comment
  CDA29026  Anagallis arvensis D. G. Kelch 2006-5-7 6 .156 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  CHSC75115  Anagallis arvensis Roger Thom 1987-5-26 21 Contra Costa 2800 block of Buena Vista Ave. Walnut Creek. 30 Comment
  UC635714  Anagallis arvensis A. E. Borell 1928-3-18 26 Contra Costa w. slope Mt. Diablo Comment
  UC691833  Anagallis arvensis Mary L. Bowerman 1930-6-28 389 Contra Costa Mt. Diablo, Lower Silver Spring Comment
  UC162557  Androsace elongata subsp. acuta H. M. Hall 1901-4-5 Contra Costa Mount Diablo San Francisco Bay region, Mt. Diablo 1074 Comment
  CAS-BOT-BC400258  Anemopsis californica Miss E. Cannon 1892-6-6 s.n. Contra Costa Marshall Valley, foot of Mt. Diablo Comment
  UC692069  Anemopsis californica Mary L. Bowerman 1931-5-28 903 Contra Costa Pine Canyon by Sulphur Spring (Mount Diablo); , Pine Canyon Comment
  UC692565  Angelica californica Mary L. Bowerman 1931-6-2 915 Contra Costa Mount Diablo, Gregory Ranch Road Mount Diablo; , Gregory Ranch Road 518 Comment
  JEPS111664  Anthemis cotula A. G. Murdock 2004-5-28 302 Contra Costa Hercules - Carbon 50 Comment
  UC1594182  Anthemis cotula Jerry Powell 1992-6-17 1692 Contra Costa Richmond Field Station Comment
  UCD164658  Anthemis cotula Henry House 1995-5-20 1995- 23 Contra Costa Approximately 50 m from Walnut Blvd, about 1.25 km south of Marsh Creek Road. 30 Comment
  JEPS111630  Anthriscus caucalis D. G. Kelch 2005-5-13 05 .261 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Area along Vista Road ~ 2.5 kiloms West of Martinez 45 Comment
  UC691616  Antirrhinum kelloggii Mary L. Bowerman 1932-4-27 1390 Contra Costa w of Riggs Canyon (s-face Oyster Ridge); Mount Diablo, Oyster Ridge 335 Comment
  UC2032826  Aphanes arvensis Doran, Andrew Scott 2012-3-20 696 Contra Costa Second highest point on Brooks Island below rocky outcrop Comment
  JEPS112070  Aphanes occidentalis A. G. Murdock 2004-3-5 212 Contra Costa Sky Ranch At top of ridge along road 250 Comment
  UC2027940  Apiastrum angustifolium Barbara Ertter with Tony Morosco and other CNPS members 2001-5-6 17621 Contra Costa Northwest flank of Mount Diablo, trail on west face of Black Point. Comment
  UC2046342  Apium graveolens Barbara Ertter July 1999 s.n. Contra Costa Cerrito Creek just east of Pierce Street. Alameda/Contra Costa County line. Comment
  UC692088  Aquilegia formosa Mary L. Bowerman 1935-5-18 3021 Contra Costa across the rd and a little east from the parking area Mount Diablo 1066 Comment
  UC692183  Aquilegia formosa Mary L. Bowerman 1938-6-14 3686 Contra Costa Juniper Camp Mount Diablo Comment
  UC692184  Aquilegia formosa Mary L. Bowerman 1931-5-23 896 Contra Costa Alamo Canyon Mount Diablo Comment
  RSA721743  Aquilegia formosa Barbara J. Ertter, Mary L. Bowerman 1994-6-19 12840 Contra Costa Mt. Diablo State Park E of Walnut Creek, Muir Picnic Area on Summit Road. 1006 Comment
  CAS-BOT-BC17272  Arabis blepharophylla Paul F. Covel 1938-5-8 1514 Contra Costa Summit Mount Diablo. Comment
  UC692041  Arceuthobium campylopodum Mary L. Bowerman 1930-6-22 374 Contra Costa above main canyon (Mitchell Canyon Trail); Mount Diablo Comment
  UC692043  Arceuthobium campylopodum Mary L. Bowerman 1931-10-31 1065 Contra Costa south Rd near junction Mount Diablo Comment
  RSA721736  Arceuthobium occidentale Barbara Ertter, Mary L. Bowerman, Lisa Schultheis, Kevin Hintsa 1995-10-22 14533 Contra Costa Three Springs Trail on northeast side of Mt Diablo, wood above ranch. 366 Comment
  SEINET11971166  Arctostaphylos andersonii var. auriculata L. S. Rose 1934-1 24039 Contra Costa S slope of Mount Diablo, 8 mi NE of Danville Comment
  SEINET11989037  Arctostaphylos andersonii var. auriculata Unknown 1968-1 1308 Contra Costa ca 300 yds above road at Somersville 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-BC24118  Arctostaphylos auriculata Alice Eastwood 1922-5-14 11311 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC24119  Arctostaphylos auriculata John Thomas Howell 1931-5-12 6477 Contra Costa Nortonville Comment
  CAS-BOT-BC24121  Arctostaphylos auriculata Lewis S. Rose 1934-2-28 34039 Contra Costa S. slope Mt. Diablo, 8 mi. NE Danville Comment
  RSA164646  Arctostaphylos auriculata Percy C. Everett 1963-11-19 24550 Contra Costa Mt Diablo. 457 Comment
  RSA622478  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27600 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments Jan 30 2013
  RSA622479  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27595 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments Jan 30 2013
  UC549569  Arctostaphylos auriculata J. E. Adams 1934-10-6 852 Contra Costa Rock City Mt. Diablo Comment
  SEINET11998374  Arctostaphylos canescens subsp. malloryi W. Knight, Knight, I. 1988-1 6478 Contra Costa Tilden Regional Park, Regional Parks Botanic Garden, originally from Iron Mt. in Shasta Co 914 Comment
  CAS-BOT-BC23556  Arctostaphylos crustacea Lewis S. Rose 1954-3-1 54004 Contra Costa Oakland Hills above Redwood Canyon 609 Comment
  CAS-BOT-BC23591  Arctostaphylos crustacea Walter Knight; Irja Knight 1980-3-16 3715 Contra Costa Sobrante Ridge between Heavenly Ridge Lane and Castro Ranch road. Comment
  SBBG114891  Arctostaphylos glandulosa subsp. glandulosa C. Bornstein 1999-3-20 Contra Costa Sobrante Ridge Regional Preserve 243 Comment
Read comments Dec 27 2008
  UC1120326  Arctostaphylos glandulosa subsp. glandulosa H. A. Jensen 1938-10-27 454 Contra Costa head of Sycamore Creek Mount Diablo Quadrangle Comment
  SBBG5419  Arctostaphylos glandulosa subsp. mollis J. M. Tucker 1941-9-26 409 Contra Costa summit of Moraga Ridge 500 Comment
Read comments Sep 13 2011
  CAS-BOT-BC24654  Arctostaphylos glauca Mary L. Bowerman 1930-6-22 362 Contra Costa Mount Diablo, Mitchell Canyon. Comment
  POM367324  Arctostaphylos glauca Mark Morris 1929-03 14911 Contra Costa Mt. Diablo. Comment
  RSA632815  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27577 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  SEINET11977789  Arctostaphylos manzanita M. T. Doutt 1930-1 85 Contra Costa Marsh Creek Comment
  SEINET12524593 Image available Arctostaphylos manzanita L. S. Rose 1934-1 34040 Contra Costa S. slope mt. diablo, 8 mi NE. Danville. Comment
  JEPS38920  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1930-6-18 349 Contra Costa Rock City Canyon Mount Diablo Comment
  UC549575  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 674 Contra Costa Mount Diablo Comment
  SEINET3411014 Image available Arctostaphylos manzanita subsp. laevigata Lewis S. Rose 1934-2-28 Contra Costa Rocky shrubby hills, South slope Mt. Diablo, 8 miles NE Danville, Contra Costa County, California. 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
  CAS-BOT-BC24381  Arctostaphylos manzanita subsp. manzanita Walter Knight; Irja Knight 1980-3-16 3713 Contra Costa Opposite 5996 Skyline Drive, El Sobrante. Comment
  CAS-BOT-BC24391  Arctostaphylos manzanita subsp. manzanita Walter Knight 1979-12-9 3717 Contra Costa Morgan Territory Regional Land Bank. Above rimrock of Marsh Creek Canyon. Comment
  UCSB22193  Arctostaphylos obispoensis Jensen, H. 1938-10-27 Contra Costa Head of Sycamore Creek 518 Comment
  CAS-BOT-BC42234  Arctostaphylos pallida Walter Knight; Irja Knight 1980-3-16 3714 Contra Costa Sobrante Ridge between Heavenly Ridge Land and Castro Ranch Road. Comment
  UC723808  Arctostaphylos pallida Joseph Andorfer Ewan 1934-1-7 8162 Contra Costa above Oakland (head of creek, along ridge); San Leandro Creek Comment
  JEPS42608  Arctostaphylos tomentosa subsp. crustacea W. L. Jepson 1944-8-5 27546 Contra Costa Moraga Ridge Oakland Hills Comment
  JEPS42609  Arctostaphylos tomentosa subsp. crustacea W. L. Jepson 1944-8-5 27547 Contra Costa Moraga Ridge Oakland Hills Comment
  JEPS46272  Arctostaphylos tomentosa subsp. crustacea W. L. Jepson 1943-6-19 20850 Contra Costa Moraga Ridge Comment
  POM131600  Arctostaphylos tomentosa subsp. crustacea Jos Burtt Davy 1897-1 10651 Contra Costa Moraga Valley. Comment
  RSA202863  Arctostaphylos tomentosa subsp. crustacea Edward Lee 1935-12-28 1702 Contra Costa Western end of Las Trampas Ridge Comment
Read comments Jul 2 2011
  UC1120143  Arctostaphylos tomentosa subsp. crustacea C. M. Belshaw 1936-2-16 1588 Contra Costa 2 1/2 mi nw Lafayette; Concord Quadrangle, Lafayette Ridge Comment
  UC1120146  Arctostaphylos tomentosa subsp. crustacea C. M. Belshaw 1936-2-16 1589 Contra Costa 2 1/2 mi nw Lafayette; Concord Quadrangle, Lafayette Ridge Comment
  UC1120187  Arctostaphylos tomentosa subsp. crustacea R. C. Wilson 1935-3-14 8156 Contra Costa 2 mi w Cave Pt.; Mt. Diablo Quadrangle Comment
  UC549440  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1935-10-21 550 Contra Costa Moraga Ridge Comment
  UC549445  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 632 Contra Costa Moraga Ridge Comment
  UCR58384  Arctostaphylos tomentosa subsp. crustacea Walter Knight 1980-3-6 s.n. Contra Costa Redwood Regional Park; East Ridge Trail 396 Comment
Read comments Aug 10 2011
  RSA51344  Aristolochia californica P. H. Raven 1950-3-5 s.n. Contra Costa Happy Valley Road .9 miles above intersection with Upper Happy Valley Road 183 Comment
  SEINET12097752  Aristolochia californica M. T. Doutt 1931-1 253 Contra Costa San Pablo Creek near Orinda Comment
  SEINET10669563  Arnica cordifolia John G. Lemmon 1872-1 Lemmon s.n. Contra Costa Summit of Mount Diablo. Comment
  UC2042495  Artemisia californica Barbara Keller and J. Ruck 2011-6-23 Contra Costa Mt. Diablo State Park, North Gate Rd. Comment
  UCD129214  Artemisia californica Beecher Crampton 1972-11-21 8892 Contra Costa 2 miles east Port Costa. Comment
  UC521721  Artemisia douglasiana Joseph Andorfer Ewan 1933-10-15 8033 Contra Costa grassy slope above Indian Ceremonial Spr.; Mt. Diablo Comment
  UC691355  Artemisia douglasiana Mary L. Bowerman 1930-10-4 484 Contra Costa Pioneer Camp Ground Mount Diablo Comment
  JEPS87910  Asarum caudatum Barbara Ertter, Chris Thayer 1993-5-7 11698 Contra Costa on Wildcat Canyon Road Hopkins Spring 1/2 mi se Inspiration Point (East Bay Municipal Utilities District Land e of Tilden Park); e of Tilden Park, Hopkins Spring 304 Comment
  UCD137837  Asarum caudatum Richard W. Neil 1941-3-24 4 Contra Costa Redwood Park, Redwood Canyon. 182 Comment
  JEPS5091  Asclepias californica Mary L. Bowerman 1935-5-1 2944 Contra Costa 4.4 mi from entrance (West road); Mount Diablo 381 Comment
  RSA0031304  Asclepias californica Barbara Ertter 2000-5-14 17019 Contra Costa Donner Basin on north side of Mount Diablo, upper end of Falls Trail near junction of Cardinet Oaks Road. 427 Comment
  UC2045295 Image available Asclepias californica Mary L. Bowerman 1932-9-24 1596 Contra Costa Ridge running west from Twin Peaks Comment
  SEINET207365  Asclepias cordifolia Rimo Bacigalupi, G. Thomas Robbins 1956-5-11 5642 Contra Costa Franklin Canyon, 1/4 mile above (and northwest of) Glen Frazer Station on the Santa Fe Railway. 107 Comment
  UC22985  Asclepias fascicularis Edw. L. Greene June 1892 Contra Costa Walnut Creek Comment
  SD129705  Asclepias vestita Donald G. Nelson 1937-4-24 520 Contra Costa On Marsh Creek Road, between Byron and Clayton. Comment
  UC1618202  Asparagus asparagoides Barbara Ertter 1991-5-12 9817 Contra Costa sw corner El Cerrito (along old R.R. right-of-way between bay & salicornia marsh, Point Isabel Regional Shoreline, on San Francisco Bay); San Francisco Bay Comment
  RSA721531  Aster chilensis Mary L. Bowerman 1993-10-19 s.n. Contra Costa Mount Diablo. Marsh Creek near Russelman Road. Comment
  SEINET11851717  Aster subulatus var. ligulatus L. S. Rose 1938-1 38312 Contra Costa Byron 3 Comment
  CAS-BOT-BC180528  Astragalus asymmetricus M. K. Curran 1886-5-1 51 Contra Costa Antioch Comment
  CAS-BOT-BC180571  Astragalus asymmetricus Mrs. E. C. Wright 1917-6-1 s.n. Contra Costa Mt. Diablo Comment
  UC13388  Astragalus asymmetricus F. T. Bioletti 1892-1 Contra Costa Byron Comment
  UC83444  Astragalus didymocarpus Katharine Brandegee May 1886 Contra Costa Antioch Comment
  UC13432  Astragalus gambelianus State Survey 1862-5-12 1071 Contra Costa Mt. Diablo Comment
Read comments Jan 20 2011
  UC692524  Astragalus gambelianus Mary L. Bowerman 1932-4-9 1328 Contra Costa small ridge e of south spur meridian (Inner Black Hills, Mount Diablo); Mount Diablo, Inner Black Hills Comment
  CAS-BOT-BC178471  Astragalus gambelianus H. L. Mason 1928-4-15 4345 Contra Costa East-facing grassy slope, Moraga Ridge Comment
  SEINET10486680  Astragalus nigrescens Lincoln Constance, Carl W. Sharsmith 1940-4-27 Constance 2572 Contra Costa Petals purplish; fruit obcompressed. Loose serpentine soil, open s slope, pine Canyon, base of mt diablo. 305 Comment
  CAS-BOT-BC193335  Astragalus tener var. tener Alice Eastwood 1914-3-14 3818 Contra Costa Byron Springs Comment
  CAS-BOT-BC17456  Athysanus pusillus John Thomas Howell 1931-3-10 5754 Contra Costa East side of Mount Diablo 7 miles from Clayton on Livermore Road. Comment
  UC480596  Athysanus pusillus Carl Meyer 1928-2-22 291 Contra Costa Mount Diablo Comment
  CAS-BOT-BC168564  Atriplex cordulata Walter Knight 1977-7-4 s.n. Contra Costa Black Diamond Mines Regional Preserve near Antioch. About 1 mile south of Contra Loma Regional Park 45 Comment
  RSA0036964  Atriplex coronata D. G. Kelch, Mike Perlmutter 2011-9-23 11 .760 Contra Costa Entry to Discovery Bay. 2 Comment
  LA204675  Atriplex coronata John Thomas Howell; 1930-9-28 5503 Contra Costa 5.4 miles from Byron on Marsh Creek Road Comment
  SEINET4134956  Atriplex heterosperma Howard C. Stutz 1990-8-17 95340 Contra Costa No. Livermore.; 0 Comment
  JEPS59616  Atriplex joaquinana W. L. Jepson May 1891 Contra Costa Mt. Diablo region Comment
  UCD97493  Atriplex joaquinana Carol W. Witham 1994-8-7 588 Contra Costa east of Bixler Road between Marsh Creek Road and Point of Timber Road. 3 Comment
  JEPS41046  Atriplex leucophylla Rimo Bacigalupi and L. R. Heckard 1965-5-11 9071 Contra Costa on strand at n end Brooks Island (in San Francisco Bay sw of Richmond); San Francisco Bay, sw of Richmond, n end Brooks Island Comment
  RSA299534  Atriplex rosea Walter Knight 1978-8-20 3232 Contra Costa Along Frederickson Lane, Contra Lowa Regional Park. Comment
  UC217190  Atriplex rosea H. M. Hall 1919-11-14 10971 Contra Costa n Byron; n of Byron Comment
  CDA2931  Atriplex semibaccata D. G. Kelch 2006-9-25 6 .477 Contra Costa Carquinez Strait; Marsh 1km. W of Pacheco Slough. Comment
  NY324276  Atriplex spicata W. H. Brewer 1862-5-31 1190 Contra Costa Joaquin Valley 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
  SEINET11263175  Atriplex triangularis Barbara Ertter, Chris Thayer 1996-10-25 15361 Contra Costa NW flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park, intermittent surface water left in shaded stream in valley oak woodland and grassland.; 0 91 Comment
  UCD56170  Avena barbata Beecher Crampton 1956-5-14 3404 Contra Costa Southeast of Mt. Diablo. Headwaters of Marsh Creek. 640 Comment
  CHSC21645  Avena fatua Willis Ball 1975-3-2 469 Contra Costa Contral Loma Regional Park. In area #2. On s side of hill ca. 55 myds. ne of single restroom at sw end of lake. 39 Comment
  UC579865  Avena fatua Annetta Carter 1936-4-19 1129 Contra Costa Red Rock San Francisco Bay (nw slope near summit of island) Comment
  UCD56252  Avena fatua P. Akers 2002-5-11 s.n. Contra Costa Mt. Diablo Summit Trail. At water tank picnic area. 873 Comment
  UCD56084  Avena occidentalis G. Douglas Barbe 1983-5-22 4081 Contra Costa Mount Diablo State Park. 877 Comment
Read comments Nov 19 2009
  JEPS112257  Azolla filiculoides Andrew G. Murdock 2004-4-30 311 Contra Costa In Pinole Creek near Pig Sale. 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
  UC2028233  Baccharis glutinosa Barbara Ertter 1998-11-15 16463 Contra Costa North side Mount Olympia on north side Mount Diablo. 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
  UC691861  Baccharis salicifolia subsp. salicifolia Mary L. Bowerman 1931-5-2 798 Contra Costa Donner Canyon stream Mount Diablo 152 Comment
  JEPS15610  Bellardia trixago R. Bacigalupi and G. Thomas Robbins 1955-5-4 4973 Contra Costa E edge, field along treat Lane Concord; Clayton Valley 60 Comment
  JEPS74805  Bellardia trixago L. R. Heckard, T. I. Chuang, and R. Bacigalupi 1975-5-7 4013 Contra Costa ca 1/2 mi e Pinole (just e of Interstate 80 along main route of Santa Fe Railroad) Comment
  SEINET13390640  Bellardia trixago C. C. Hall 1911-5-20 8835 Contra Costa Near Concord. 100 Comment
  POM300991  Bellardia trixago Mary L. Bowerman 1938-5-25 3632 Contra Costa North Road 1.6 miles from North Gate where stream crosses road. 152 Comment
  SD26790  Bellardia trixago Paul Covel May 1938 Contra Costa Bet. Martenez and Crockett Comment
  SD30222  Bellardia trixago P. O. Schallert 1943-4-27 Contra Costa 1 mile east of Martinez, in meadow Comment
  UC1076434  Berberis pinnata Herbert L. Mason 1925-3-10 1298 Contra Costa Sycamore Canyon; Mt Diablo Comment
  UC692319  Berula erecta Mary L. Bowerman 1930-10-4 479 Contra Costa Mount Diablo, Maple Spring, by North Road Maple Spring; Mount Diablo, Maple Spring Comment
  CDA3008  Beta vulgaris C. Lasser 1960-4-19 Contra Costa State Highway, right of way between Concord Avenue and Grayson Creek. 0 Comment
  SJSU5109  Bidens laevis M. Bruck 1960-10-30 48 Contra Costa SW end of Winter Island, New York Slough, confluence of Sacramento & San Joaquin Rivers near Antioch Comment
  UC456081  Bidens laevis I. J. Condit 1908-8-19 Contra Costa Antioch Comment
  CAS-BOT-BC100703  Blennosperma nanum var. nanum M. K. C. 1886-5-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC100704  Blennosperma nanum var. nanum Robert F. Hoover 1938-2-21 2750 Contra Costa Byron Hot Springs 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
  UC565479  Blennosperma nanum var. nanum H. L. Mason 1929-3-15 5045 Contra Costa just s of Nortonville Comment
  SEINET1910262  Blennosperma nanum var. nanum Barbara Ertter 1992-1 10908 Contra Costa Byron Springs Road, 4-5 miles south of Junction with J4, near Armstrong Road Comment
  CAS-BOT-BC127915  Blepharizonia laxa Brandegee s.n. Contra Costa Antioch Comment
  CAS-BOT-BC100339  Blepharizonia plumosa T. S. Brandegee Sept. 1883 s.n. Contra Costa Antioch Comment
  JEPS18817  Blepharizonia plumosa R. F. Hoover 1937-9-2 2711 Contra Costa 1 mi w Antioch Comment
  JEPS18823  Blepharizonia plumosa R. F. Hoover 1937-8-31 2704 Contra Costa Pittsburg Comment
  UC691072  Boechera breweri subsp. breweri Mary L. Bowerman 1931-3-7 547 Contra Costa Meridian Peak summit Mount Diablo Comment
  CAS-BOT-BC15960  Boechera breweri subsp. breweri E. W. Hicks 1917-3-24 111 Contra Costa Mount Diablo. Western slope of the mountain. 1067 Comment
  CAS-BOT-BC31334  Bolboschoenus maritimus Walter Knight; Joanne Dean 1978-8-14 3161 Contra Costa Browns Island. Comment
  CAS-BOT-BC31332  Bolboschoenus maritimus Walter Knight; Harry Reeves 1979-8-25 3408 Contra Costa Man made marsh below dam near golf course. Contra Loma Regional Park near Antioch. 22 Comment
  CAS-BOT-BC95326  Bowlesia incana Mary L. Bowerman 1931-3-21 591 Contra Costa Sycamore Canyon, Mount Diablo Comment
  UC1795724  Brachypodium distachyon Barbara Ertter, Mary Bowerman et al. 1995-5-7 14026 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, along road thru annual grassland with scattered blue oak south of Marsh Cr. Rd summit. 304 Comment
  CDA23561  Brassica rapa D. G. Kelch 2008-3-3 8 .029 Contra Costa Carquinez Strait; Crockett. Under Zampa (Carquinez) Bridge. Comment
  UC691067  Brassica rapa Mary L. Bowerman 1932-5-6 1409 Contra Costa Mount Diablo, w bank of Mitchell Canyon Mitchell Canyon; Mount Diablo, Mitchell Canyon 182 Comment
  CAS-BOT-BC36723  Brassica rapa R. E. Frenkel 1963-8-22 273 Contra Costa On the lot in front of Market Plaza Center on Highway 21, Alamo. 79 Comment
  UC691784  Brickellia californica Mary L. Bowerman 1933-9-3 2422 Contra Costa rocky gully on sw side of ridge, e of dry spring and above large flat North Peak (Mount Diablo); , North Peak Comment
  JEPS99494  Brickellia californica Mary Bowerman 1994-10-30 Contra Costa Mount Diablo, Hetherington Loop, streamlet just below upper stream crossing. Comment
  JEPS99490  Briza maxima Mary Bowerman 1995-6-4 Contra Costa Mount Diablo, Pine canyon by fire road. Comment
  CHSC116650  Briza minor Lowell Ahart; Josephine Guardino 2016-4-19 20789 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant .Below the high water line of Los Vaqueros Reservoir, 1.4 miles northwest of Los Vaqueros Reservoir Marina, 1,9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  UC697128  Brodiaea elegans subsp. elegans Mary L. Bowerman 1930-6-3 229 Contra Costa North Road Mount Diablo 167 Comment
  UCD164897  Brodiaea elegans subsp. elegans Henry House 1995-5-20 1995- 15 Contra Costa about 1 km west of Walnut Blvd., ca. 0.5 km south of Marsh Creek Rd. 60 Comment
  UC2028369  Brodiaea elegans subsp. elegans Barbara Ertter 1998-6-20 16248 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Gypsy Ridge SW of Old Borges Ranch Comment
  CDA23631  Bromus carinatus D. G. Kelch, D. A. Weinstein 2008-4-25 8 .089 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
  POM300680  Bromus carinatus Mary L. Bowerman 1935-5-16 3010 Contra Costa Behind Gabriel-Hinks' (east side of North Peak) 290 Comment
  CAS-BOT-BC149542  Bromus carinatus var. carinatus R. E. Frenkel 1964-2-24 378 Contra Costa On Giant Road at its junction with Atlas Road, Richmond. 16 Comment
  CAS-BOT-BC156063  Bromus diandrus Alice Eastwood 1921-4-18 10262 Contra Costa Antioch. Comment
  POM300672  Bromus diandrus Mary L. Bowerman 1932-4-27 1366 Contra Costa Oyster Ridge, south face of ridge west of Riggs Canyon Comment
  RSA32317  Bromus diandrus Mary L. Bowerman 1933-5-11 2088 Contra Costa Inner Black Hills west of saddle: open ridge Comment
  UC50599  Bromus diandrus Jos. Burtt Davy 1897-4-17 Contra Costa Point Isabel 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
  JEPS100024  Bromus hordeaceus G. Smick 2003-3-27 GAS 95 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD58642  Bromus hordeaceus Beecher Crampton 1956-5-14 3379 Contra Costa Head of Horse Valley. 5 miles south of Antioch. Comment
  CAS-BOT-BC155471  Bromus hordeaceus Mary L. Bowerman 1933-4-15 1870 Contra Costa Mount Diablo. Canyon south of Arroyo del Cerro. Rocky knoll 250 feet below spring. Comment
  CAS-BOT-BC162452  Bromus laevipes Mary L. Bowerman 1935-5-30 3095 Contra Costa Mount Diablo. Between the two ridges which converge at Twin Peaks (Eagle Point ridge). 350 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
  UC37706  Bromus madritensis subsp. rubens J. Burtt Davy 1895-4-7 890 Contra Costa Antioch 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
  UC692348  Bromus madritensis subsp. rubens Mary L. Bowerman 1933-5-2 1944 Contra Costa below Pioneer Camp (Mount Diablo); Mount Diablo 762 Comment
  SACT000721  Bromus rubens Annette Waters 1958-5-13 Contra Costa 3 miles north of sign ""South Entrance of Park 4 miles""; at edge of road in dry sandy soil; few heads greenish but mostly purple Comment
  UCD59584  Bromus rubens P. B. Kennedy 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  CAS-BOT-BC161953  Bromus rubens Mary L. Bowerman 1931-5-7 810 Contra Costa Mount Diablo. North Peak. Comment
  SEINET10868253  Bromus rubens Lewis S. Rose 1935-5-16 Rose 35169 Contra Costa Mt. Diablo, S slope. Comment
  CDA15253  Bromus stamineus G. F. Hrusa, D. Crowe 1998-5-8 14384 Contra Costa Sacramento Delta; Annual on edge of +- disturbed roadside adjacent to wetland in Dow Ecological Reserve on Dow Chemical property at Pittsburg. Uncommon here. Comment
  CDA8350  Bromus sterilis D. G. Kelch, A. G. Murdock 2005-5-13 05 .268-B Contra Costa Carquinez Strait; Martinez-West: Ozol Rock and Scenic Drive. Ozol rock in road cuts. 0 Comment
  CDA975  Bromus trinii D. G. Kelch 2005-6-14 05 .333-B Contra Costa East Bay; San Pablo. North Alvarado Park, south of San Pablo Dam Rd. Comment
  UC2028356  Caesalpinia gilliesii Barbara Ertter with Tony Morosco 1998-7-11 16374 Contra Costa Along Willow Avenue near SW corner of Antioch National Wildlife Refuge Comment
  JEPS22094  Cakile maritima G. Thomas Robbins 1958-7-19 3905 Contra Costa about 3/4 mi s of Pt. San Pablo Potrero San Pablo, Richmond Point San Pablo Potrero; San Francisco Bay, Point Orient Comment
  SEINET3924764  Calamagrostis rubescens Virginia E. Long 1933-6-14 222 a Contra Costa Mt. Diablo, Inner Black Hills.; 0 565 Comment
  JEPS48655  Calandrinia ciliata Elsa Kraeger 1926-5-7 Contra Costa near Toll Gate (road to Mt. Diablo) Comment
  JEPS65180  Callitriche longipedunculata L. R. Heckard 1971-4-15 2487 Contra Costa In field at intersection of Holey Road, south of Byron 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
  CAS-BOT-BC490528  Calochortus luteus Mary L. Bowerman 1933-6-14 2281 Contra Costa Inner Black Hills west of 1970 Comment
  UC2028348  Calochortus luteus Barbara Ertter with Susan D'Alcamo 1998-6-12 16197 Contra Costa Along Curry Canyon Road just east of Curry Point, south side of Mount Diablo Comment
  CAS-BOT-BC132488  Calochortus pulchellus A. D. E. Elmer 1903-6-1 4631 Contra Costa Mount Diablo Comment
  CAS-BOT-BC132498  Calochortus pulchellus A. D. E. Elmer 1903-6-1 4631 Contra Costa Mt. Diablo Comment
  JEPS122394  Calochortus pulchellus Nisrine Machaka-Houri 2014-5-17 NG 14 Contra Costa Black Point Trail, Mitchell Canyon, Mt. Diablo State Park. Comment
  POM170033  Calochortus pulchellus H. M. Hall 1910-5-30 10132 Contra Costa Mt. Diablo, north slope near Pine Canyon 366 Comment
  UC1134509  Calochortus pulchellus C. M. Belshaw 1936-5-12 2104 Contra Costa 1 mi s Tassajero Rd. summit; Mt. Diablo 304 Comment
Read comments Dec 29 2006
  UC1300909  Calochortus pulchellus Helen K. Sharsmith 1962-5-20 5069 Contra Costa Morgan Territory Road, ne slopes of Mount Diablo San Francisco Bay Region, Mount Diablo 365 Comment
  UC3461  Calochortus pulchellus W. H. Brewer 1862-5-7 1063 Contra Costa n slope Mount Diablo Comment
  RSA68634  Calochortus umbellatus Frank W. Peirson 1926-4-11 6639 Contra Costa Along summit of hills back of Albany Comment
  RSA8517  Calochortus umbellatus J. T. Howell 1933-5-14 11261 Contra Costa Hills east of St. Marys college Comment
  CAS-BOT-BC494049  Calochortus venustus T. S. Brandegee 1889-4-21 s.n. Contra Costa San Pablo Comment
  UCD129979  Calycadenia truncata Ann F. Johnson 1978-8-19 s.n. Contra Costa Mt. Diablo State Park. Comment
  UC1794956  Calystegia R. K. Brummitt and B. Ertter 1998-5-6 19794 Contra Costa Point San Pablo, W of Richmond. Comment
  JEPS125633  Calystegia sepium subsp. binghamiae Daniel Slakey with CNPS Volunteers 2015-9-12 227 Contra Costa Browns Island, northern part of Crooked Slough. Comment
  UC1034867  Calystegia sepium subsp. binghamiae Ira L. Wiggins 1954-9-5 13123 Contra Costa Levee along Bethel Island; Levee along Bethel Island Comment
  UCD163494  Calystegia sepium subsp. limnophila D. Slakey; CNPS Volunteers 2015-9-12 227 Contra Costa Browns Island, northern part of Crooked Slough. 0 Comment
  CDA15288  Calystegia sepium subsp. limnophila G. F. Hrusa, D. Crowe, R. York 1998-7-17 14728 Contra Costa Sacramento Delta; Betw. Dow Ecological Reserve and San Joaquin R. Sheet 1 of 2. Comment
  UC2029125  Calystegia subacaulis Barbara Ertter with David Gowen 2013-4-9 21308 Contra Costa Mount Diablo State Park southeast of Walnut Creek, ridge in bend of South Gate Road at Curry Point. Comment
  UC2029024  Calystegia subacaulis Barbara Ertter 1999-7-17 16760 Contra Costa El Cerrito, west side of Arlington Ave. in small triangle of land between Moeser Ln. and Terrace Dr., among mowed Avena. Comment
  UC1197881  Calystegia subacaulis subsp. subacaulis Joseph P. Tracy 1934-4-30 13192 Contra Costa Near Lafayette. 152 Comment
  UC1784911  Calystegia subacaulis subsp. subacaulis Barbara Ertter with Elizabeth Neese 1988-4-24 7452 Contra Costa Black Diamond Mines Regional Preserve SW of Antioch, head of drainage between and parallel to Nortonville and Somersville roads Comment
  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
  UC140592  Camissonia campestris subsp. campestris C. F. Baker 1903-4-28 2807 Contra Costa in sandhills Antioch Comment
  UC198869  Camissonia campestris subsp. campestris Chesnut and Drew 1887-4-18 Contra Costa Antioch Comment
  UC35394  Camissonia contorta Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  RSA186718  Camissonia intermedia D. E. Breedlove 1963-5-2 4698 Contra Costa At entrance to Mt. Diablo State Park 4 miles east of Danville Comment
  UC2028251  Camissonia intermedia Barbara Ertter, Mary Bowerman, Lisa Schultheis 1998-8-21 16397 Contra Costa South side of Mount Diablo, South Gate Road 1.1 miles below entry kiosk. Comment
  JEPS125934  Camissonia micrantha D. W. Taylor 2001-3-22 17616 Contra Costa Kreyenhagen Hills; Cedar Canyon, tributary to Zapato Chino Canyon, along southern flank of ridge forming divide with Garcia Canyon to the north; ca 5 air miles W of Avena Comment
Read comments Jun 18 2019
  UC20498  Camissoniopsis micrantha W. H. Brewer 1862-4-24 988 Contra Costa Camp 68 Martinez Comment
  JEPS6159  Campanula exigua Mary L. Bowerman 1930-6-14 330 Contra Costa Meridian Peak summit; Mount Diablo Comment
  JEPS99590  Campanula exigua Mary Bowerman 1975-6-1 Contra Costa Mount Diablo. Upper Falls Trail a few feet below real 1st creek (not waterfall) coming from horsemen's. Comment
  RSA100285  Campanula exigua Mary L. Bowerman 1930-6-14 330 Contra Costa Summit of Mount Diablo 1159 Comment
  CAS-BOT-BC37395  Cardamine californica Robert Francis Hoover 1938-2-21 2754 Contra Costa Point Richmond. Comment
  JEPS53386  Cardamine californica J. Burtt Davy 1895-4-13 1006 Contra Costa near Lafayette; near Lafayette Comment
  UC691085  Cardamine californica Mary L. Bowerman 1931-2-8 504 Contra Costa Mineral Spring , Mineral Spring (Mount Diablo) 396 Comment
  UCD114186  Cardamine californica Morris Halperin 1929-4-21 s.n. Contra Costa St. Mary's College campus. Comment
  UC1795656  Cardamine californica var. californica Barbara Ertter, Gary Schoolcraft 1996-4-7 14580 Contra Costa Molate Beach Park on San Francisco Bay north of San Rafael Bridge; coastal prairie and brushland on bluff. Comment
  RSA272927  Cardamine californica var. integrifolia Lyman Benson 1935-3-16 6263 Contra Costa Mt. Diablo, Watershed: Walnut Creek; Mountain Range: Mt. Diablo. 915 Comment
  UC10326  Cardamine californica var. integrifolia W. H. Brewer 1862-5-1 1039 Contra Costa Walnut Creek Comment
  CDA24752  Cardamine hirsuta D. G. Kelch 2007-3-24 7 .085 Contra Costa Carquinez Strait; Ozol; between Port Costa and Martinez, near old brick quarry. Comment
  UC1606309  Cardamine hirsuta Barbara Ertter 1993-2-28 11461 Contra Costa edge Vollmer Peak Trail (Tilden Regional Park in Berkeley Hills, above steam trains); Tilden Regional Park in Berkeley Hills 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
  UC1561256  Cardamine oligosperma Barbara Ertter with John Little 1989-4-2 8112 Contra Costa Hillside Park , Hillside Park (El Cerrito) Comment
  CDA15243  Cardaria chalepensis G. F. Hrusa, D. Crowe 1998-5-8 14374 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  CDA19118  Cardaria chalepensis R. M. Case 2001-5-1 PDR P 088777 Contra Costa Solano Ave., Concord. 0 Comment
  CDA3651  Cardaria draba D. G. Kelch, A. G. Murdock 2005-3-25 5 .092 Contra Costa Carquinez Strait Region; Fernandez Ranch. West of Christie Road, south of I-4 (behind golf course) and north of Pinole Peak. Comment
  RSA720841  Cardaria draba Barbara Ertter, Richard K. Rabeler 1994-6-6 12819 Contra Costa Point Isabel in south Richmond; S of Central Avenue. Comment
  POM351433  Carduus pycnocephalus B. C. Templeton 1962-6-10 s.n. Contra Costa Mt Diablo. Comment
  SEINET8734726 Image available Carduus pycnocephalus Laura Zeller 1965-1 83 Contra Costa just E of the University of California Botanical Garden 91 Comment
  CHSC116628  Carduus pycnocephalus subsp. pycnocephalus Lowell Ahart; Josephine Guardino 2016-4-19 20794 Contra Costa Along the sides of the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant. 160 Comment
  CDA9484  Carduus tenuiflorus D. G. Kelch, Abigail Moore, Michael Park 2007-5-1 7 .209 Contra Costa Byron Airport. Comment
  UC691373  Carduus tenuiflorus Mary L. Bowerman 1934-6-9 2547 Contra Costa bend by sign reading 4.4 mi to summit Diablo Trail sign (South Road); Mount Diablo 304 Comment
  UC691374  Carduus tenuiflorus Mary L. Bowerman 1932-5-6 1412 Contra Costa on floor of Mitchell Canyon; Mount Diablo, Mitchell Canyon 213 Comment
  UC2028189  Carduus tenuiflorus Barbara Ertter 1998-5-3 16054 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. Comment
  UC2028216  Carduus tenuiflorus Barbara Ertter with Christopher Baysdorfer 1998-5-10 16130 Contra Costa West-center Lime Ridge Open Space northwest of Mount Diablo. Comment
  CAS-BOT-BC19207  Carex barbarae Walter Knight; B. Atwater; R. Bensler; J. Dean; B. Mortensen 1979-4-13 3365 Contra Costa Alder Point. Browns Island. Comment
  UC932  Carex globosa Brewer 1862-5-23 1150 Contra Costa Mt. Diablo 609 Comment
  UC2028374  Carex globosa Barbara Ertter with Dan Norris 1998-6-18 16230 Contra Costa Black Hawk Ridge Road below Knobcone Point Road, south side of Mount Diablo Comment
  CAS-BOT-BC119740  Carex nebrascensis Walter Knight 1979-6-15 3377 Contra Costa Crooked Slough. Browns Island. Comment
  SEINET10584363  Carex nudata M. Bowerman Bowerman s.n. Contra Costa Mount Diablo. Sycamore Creek Canyon. Forming clumps in rocky streambed. 244 Comment
  CAS-BOT-BC119426  Carex obnupta N. Stone 1941-4-5 23 Contra Costa Lake Anza, Wildcat Canyon. 198 Comment
  CAS-BOT-BC119016  Carex pellita Walter Knight 1979-6-15 3382 Contra Costa Straight Slough. Browns Island. Comment
  UC823230  Carex serratodens Lewis S. Rose 1935-5-16 35163 Contra Costa Mt. Diablo Comment
  JEPS105724  Carex serratodens David Gowen 2004-9-13 158 Contra Costa Mt. Diablo State Park. Gully west of chaparral area, ca. 1.9 miles from north entrance on North Gate Road. Above the road in the stream bed that cuts along a serpentine slope. Comment
  SEINET7575209 Image available Carex serratodens Lewis S. Rose 1935-5-16 35163 Contra Costa Mt. Diablo. 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
  JEPS111902  Carex tumulicola D. G. Kelch 2005-3-24 05 .69 Contra Costa Chevy's Hill 57 Comment
  UCR198216  Carex tumulicola Dean Kelch 2006-5-5 06 .131 Contra Costa San Francisco Bay, East Bay, Wildcat Canyon Regional Park, near Wildcat Canyon Road terminus 122 Comment
  JEPS65193  Castilleja attenuata L. R. Heckard 1971-4-15 2474 Contra Costa 5.5 mi n Morgan Territory road intersection with Manning road (e of Mt. Diablo) Comment
  JEPS74804  Castilleja attenuata L. R. Heckard, T. I. Chuang and R. Bacigalupi 1975-5-7 4012 Contra Costa ca 0.5 mi e Pinole (just e of Interstate 80, along main route of Santa Fe Railroad) Comment
  UC691577  Castilleja attenuata Mary L. Bowerman 1931-4-4 668 Contra Costa n side Turtle Rock; Mount Diablo Comment
  JEPS70758  Castilleja densiflora subsp. densiflora L. R. Heckard 1971-4-22 2492 Contra Costa near Pinole (near U.S. Hwy 40 crossing, along railroad grade) Comment
  CDA15239  Castilleja exserta G. F. Hrusa, D. Crowe 1998-5-8 14370 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg near shore of San Joaquin River. Comment
  CHSC59823  Castilleja exserta Linda Osborne 1980-4-5 1 Contra Costa Los Malinos Jr College, ca. 50 m e of Lake Parcourse handwalk bars and 75 m n. Comment
  UC1301202  Castilleja exserta subsp. exserta Helen K. Sharsmith 1963-4-7 5289 Contra Costa w of Antioch (e side of Kirker Pass road); San Francisco Bay Region 152 Comment
  UC673456  Castilleja exserta subsp. exserta H. L. Mason 1928-3-4 4168 Contra Costa Shell Ridge Comment
  UC1328145  Castilleja exserta subsp. latifolia Olive Dyer 1938-4-6 417 Contra Costa slope above Big Springs Canyon; Wildcat Canyon Comment
  JEPS15184  Castilleja rubicundula subsp. lithospermoides C. M. Belshaw 1936-5-11 2095 Contra Costa 5.25 mi e Danville; Mt. Diablo Quad. 289 Comment
  JEPS57132  Castilleja subinclusa subsp. franciscana L. R. Heckard 1967-5-7 1596 Contra Costa w (above) Wildcat Canyon (along Ridgeway Lane, just off Terrace Drive, El Cerrito); El Cerrito 259 Comment
  JEPS73300  Castilleja wightii L. R. Heckard 1973-6-6 3421 Contra Costa ravine behind La Moine Park; Richmond 121 Comment
  CAS-BOT-BC41015  Caulanthus flavescens Mary L. Bowerman 1935-4-22 2879 Contra Costa Mount Diablo. North Road 2 miles from North Gate, just west of chaparral. 213 Comment
  CAS-BOT-BC40516  Caulanthus lasiophyllus Ira L. Wiggins 1930-4-17 4564 Contra Costa 1 mile east of Mountain House on road to Byron. Comment
  CAS-BOT-BC48835  Ceanothus cuneatus W. C. Blasdale 1896-2-29 s.n. Contra Costa Mt. Diablo Comment
  POM136472  Ceanothus cuneatus H. P. Chandler 1901-4-5 977 Contra Costa Mt. Diablo Comment
  RSA753076  Ceanothus cuneatus Dylan O. Burge 2007-5-9 DOB- 916 c Contra Costa Mount Diablo State Park: roadside on South Gate Road 1.5 road miles (2.4 km) N of entrance gate, 6.38 km 67 degrees (True) ENE of DAnville. 380 Comment
  UCD112079  Ceanothus cuneatus M. Wiesendanger 1926-6-1 1532 Contra Costa Mt. Diablo. 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
  CAS-BOT-BC51497  Ceanothus oliganthus var. sorediatus H. E. McMinn 1922-5-30 108 Contra Costa Pinehurst Comment
  JEPS42309  Ceanothus oliganthus var. sorediatus H. H. Haworth 1917-5-3 Contra Costa Redwood Peak Oakland Hills 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
  CHSC69650  Ceanothus ramulosus James D. Jokerst; Lori May, Dave Magney 1989-4-6 3082 Contra Costa Parcel 10 (Ladd's Parcel) in watershed. Comment
  CDA18840  Centaurea calcitrapa J. Vargas 1999-7-19 PDR 1219275 Contra Costa near the junction of Hwy 4 and Willow Pass Rd., nr. Concord. 0 Comment
  UC894356  Centaurea calcitrapa Milo S. Baker 5993 Contra Costa hwy. near Carquinez Bridge Comment
  RSA153399  Centaurea calcitrapa T. C. Fuller 1961-9-13 7000 Contra Costa Fencerow of irrigated pasture, Hwy. J4, about 4 miles SE of Byron Comment
  RSA666408  Centaurea repens Bob Case 2001-10-2 s.n. Contra Costa Southeast Pleasant Hill, East Bay Municipal Utilities District right-of-way on West Hookston Road Comment
  UC2028266  Centaurium davyi Barbara Ertter 1999-6-12 16714 Contra Costa West Branch Alamo Creek on south flank of Mount Diablo, along unofficial path running from north spur of Black Hawk Ridge Road to south spur off of Knob Cone Point Road (near powerline). Comment
  UC691834  Centaurium muehlenbergii Mary L. Bowerman 1930-9-27 463 Contra Costa 2.25 mi by road from Mount Diablo north entrance (west base spring, take trail trough to w, follow to fence and go through); Mount Diablo 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
  UC1050884  Centranthus ruber N. Floy Bracelin 1942-5-17 1288 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1050885  Centranthus ruber N. Floy Bracelin 1942-5-17 1287 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC288545  Centromadia fitchii James I. McMurphy 1908-10-18 s.n. Contra Costa Antioch Comment
  UC691498  Centromadia fitchii Mary L. Bowerman 1935-9-13 3340 Contra Costa margin Hidden Pond Mount Diablo, Hidden Pond Comment
  CAS-BOT-BC288539  Centromadia fitchii John Thomas Howell 1929-9-21 4388 Contra Costa 1 mile SE of Clayton Comment
  UC2028246  Centromadia fitchii Barbara Ertter, Tony Morosco 1998-9-18 16416 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, Valley Vista Road entrance. Comment
  UC615580  Centromadia fitchii Beryl O. Schreiber 1933-10-5 938 Contra Costa road to Mt. Diablo Comment
  JEPS95217  Centromadia parryi subsp. congdonii R. E. Preston 1998-10-9 1180 Contra Costa Collier Canyon and adjacent valleys, in valley bottom, lower slopes, and saddles. 228 Comment
  UC990583  Centromadia parryi subsp. congdonii James I. McMurphy 1909-9-24 Contra Costa San Ramon Comment
  CAS-BOT-BC288875  Centromadia parryi subsp. congdonii R. F. Hoover 1966-8-31 9943 Contra Costa Junction of Tassajara and Freitas Rds, E of Danville 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
  CAS-BOT-BC288880  Centromadia parryi subsp. congdonii David D. Keck 1933-11-2 2611 Contra Costa 2.7 miles N of Walnut Creek Comment
  UCD148253  Centromadia pungens Robert E. Preston 2013-6-21 2915 Contra Costa 3.5 mi SW of Byron. 72 Comment
  CAS-BOT-BC279196  Centromadia pungens subsp. pungens J McMurphy 1909-5-20 s.n. Contra Costa Antioch Comment
  UC1238115  Centromadia pungens subsp. pungens A. P. N. 1961-4-6 713 Contra Costa on Byron Road 3 mi s Byron (old roadbed near Southern Pacific Railroad crossing) Comment
  UC523551  Centromadia pungens subsp. pungens David D. Keck 1933-11-2 2613 Contra Costa 3 mi s Martinez (on road to Pacheco) Comment
  UC912272  Centromadia pungens subsp. pungens H. L. Mason 1929-9-21 5438 Contra Costa Marsh Creek Road Comment
  CAS-BOT-BC279180  Centromadia pungens subsp. pungens John Thomas Howell 1929-9-21 4395 Contra Costa Marsh Creek Road 3.5 miles sw. of Brentwood Comment
  CAS-BOT-BC279186  Centromadia pungens subsp. pungens David D. Keck 1932-7-7 1736 Contra Costa Just east of Nichols Comment
  CAS-BOT-BC279190  Centromadia pungens subsp. pungens A. A. Heller 1928-4-15 14487 Contra Costa About Byron Springs Comment
  CAS-BOT-BC279202  Centromadia pungens subsp. pungens Volney Rattan 1886-6-15 s.n. Contra Costa Pacheco Valley Comment
  JEPS51352  Cerastium glomeratum W. L. Jepson 1922-4-16 9600 Contra Costa San Pablo Comment
  UC692408  Cerastium glomeratum Mary L. Bowerman 1931-3-7 545 Contra Costa Mt. Diablo, Sheep Camp Spring Comment
  UC1618283  Ceratophyllum demersum Barbara Ertter, Lynne Hosley 1991-9-22 10823 Contra Costa in hills sw of Lafayette (Lafayette Reservoir, at e end of dam); Lafayette Reservoir 137 Comment
  CAS-BOT-BC137010  Cercocarpus betuloides var. betuloides Mary L. Bowerman 1930-6-14 325 Contra Costa Mount Diablo. Summit area Comment
  JEPS45531  Cercocarpus betuloides var. betuloides W. L. Jepson 1920-9-6 9083 Contra Costa Mount Diablo Comment
  CAS-BOT-BC284221  Chaenactis glabriuscula var. megacephala Alice Eastwood 1921-4-18 10298 Contra Costa Antioch Comment
  POM54137  Chaenactis glabriuscula var. megacephala C. F. Baker 1903-4-27 2940 Contra Costa Antioch Comment
  CDA23076  Chamaesyce maculata D. G. Kelch, D. A. Weinstein 2008-5-5 8 .093 Contra Costa Carquinez Strait; Richmond. W Chevy s Hill. N parking lot of Hilltop Mall. Comment
  JEPS111952  Chamaesyce serpens D. G. Kelch 2004-7-9 04 .301 Contra Costa McEwen Road McEwen marsh. McEwen Road North of Cummings Skyway 130 Comment
  JEPS107063  Cheilanthes intertexta J. Greenhouse with Kevin Hintsa 2004-4-5 5086 Contra Costa Mt. Diablo, Fire Interpretive Trail, Devil's Pulpit 1088 Comment
  CHSC75078  Chenopodium album Roger Thom 1987-5-27 23 Contra Costa 1900 block of Olympic Blvd. (at Newell Ave.) Walnut Creek. 15 Comment
  UC1618329  Chenopodium album Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10884 Contra Costa just w Antioch marina (levee at n-center of preserve, at end of road); Dow Wetlands Preserve Comment
  UC2012996  Chenopodium berlandieri Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14926 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. 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
  UC692148  Chorizanthe membranacea Mary L. Bowerman 1930-6-28 403 Contra Costa lower Silver Spring , lower Silver Spring (Mount Diablo) Comment
  CAS-BOT-BC30111  Chrysolepis chrysophylla var. minor H. E. Mc. Minn 1922-5-30 31 Contra Costa Moraga ridge Comment
  JEPS48971  Chrysolepis chrysophylla var. minor H. M. Wheeler 1944-1-16 27512 Contra Costa Moraga Ridge; Oakland Hills Comment
  UC1041102  Cicuta maculata var. bolanderi J. W. Congdon 1893-7-29 Contra Costa Martinez Comment
  RSA0070598  Cirsium cymosum Mary L. Bowerman 1935-5-22 3041 a Contra Costa Eagle point ridge, canyon at north end which heads into saddle west of Twin Peaks. 305 Comment
  UC1119189  Cirsium cymosum var. cymosum C. M. Belshaw 1936-5-7 2050 Contra Costa 2 mi n of Danville; Mt. Diablo Quadrangle 243 Comment
  CAS-BOT-BC288046  Cirsium occidentale var. venustum L. R. Abrams 1921-5-25 8018 Contra Costa Mt. Diablo Comment
  JEPS59167  Cirsium occidentale var. venustum W. L. Jepson 7571 a Contra Costa Mt. Diablo, Donner Canyon Contra Costa Comment
  RSA0070867  Cirsium quercetorum J. T. Howell 1938-6-30 13940 Contra Costa Berkeley Hills on NE slope near head of Wildcat Canyon. 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
  UCSC006991  Clarkia Randall Morgan 1988-4-29 1150 Contra Costa NW slope of Turn Peaks, Mt. Diablo Comment
  JEPS107121  Clarkia affinis Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14224 Contra Costa Mt. Diablo, southeast of Walnut Creek, north of Curry Point 518 Comment
  JEPS111557  Clarkia affinis A. G. Murdock 2003-6-2 85 Contra Costa Port Costa - Reservoir: Uphill bank at east Crockett-Port Costa junction 28 Comment
  UC2028318  Clarkia affinis Barbara Ertter, Susan D'Alcamo 1998-6-12 16159 Contra Costa North Gate Road on west flank of Mount Diablo, ca 1/2 mile below upper Turtle Rock Ranch buildings. Comment
  RSA0059973  Clarkia amoena subsp. amoena H. de Forest 1930-6-29 s.n. Contra Costa Dry bank on Tunnel Rd. Comment
  JEPS99586  Clarkia biloba Mary Bowerman 1995-7-2 Contra Costa Mount Diablo, foot trail between Back Canyon and Donner Canyon. In Donner side of ridge. Comment
  UC1197000  Clarkia biloba Joseph P. Tracy 1935-7-6 14038 Contra Costa 4 mi sw Martinez; Vaca Canyon 152 Comment
  UC306514  Clarkia biloba A. D. E. Elmer May, 1903 4319 Contra Costa Mount Diablo Comment
  UC2070450  Clarkia biloba Barbara Ertter 2002-6-22 17825 Contra Costa Donner Basin on north side of Mount Diablo, Falls Loop Trail south of Wild Oat Canyon. Comment
  CAS-BOT-BC163609  Clarkia biloba subsp. biloba Mary L. Bowerman 1935-6-15 3139 Contra Costa Eagle Point ridge below Ransom Point 822 Comment
  LA206006  Clarkia biloba subsp. biloba H. Lewis; M. Lewis 1947-6-15 442 Contra Costa Martiney - Port Costa Road, 2.7 mi. N of Martiney City Limit Comment
  LA45413  Clarkia concinna Joseph Andorfer Ewan; 1934-5-20 8932 Contra Costa Mt. Diablo, Russelmann Park Comment
  UC692495  Clarkia concinna subsp. concinna Mary L. Bowerman 1931-5-21 879 Contra Costa Mount Diablo, Curry Cave Point Trail Curry Cave Point Trail; Mount Diablo, Curry Cave Point Trail 350 Comment
  UC692490  Clarkia gracilis subsp. gracilis Mary L. Bowerman 1942-5-24 3840 Contra Costa w slope Deer Ridge (Jim White Trail to Deer Flat); Mount Diablo 853 Comment
  UC2031423  Clarkia modesta Barbara Ertter with David Gowen 2007-5-13 19015 Contra Costa Mount Diablo, W end Prospectors Gap Road just E of of junction Meridian Ridge Road Comment
  CAS-BOT-BC163665  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1931-5-16 855 Contra Costa Mount Diablo. Summit Comment
  CAS-BOT-BC163667  Clarkia purpurea subsp. quadrivulnera L. R. Abrams 1916-6-30 5712 Contra Costa Mt. Diablo near lake Comment
  CAS-BOT-BC163672  Clarkia purpurea subsp. quadrivulnera John Thomas Howell 1931-5-12 6483 Contra Costa Mt. Diablo Comment
  UC2028319  Clarkia purpurea subsp. quadrivulnera Barbara Ertter, Susan D'Alcamo 1998-6-12 16158 Contra Costa North Gate Road on west flank of Mount Diablo, ca 1/2 mile below upper Turtle Rock Ranch buildings. Comment
  CAS-BOT-BC172365  Clarkia purpurea subsp. viminea Paul F. Covel 1940-5-12 1743 Contra Costa Summit of Mt. Diablo Comment
  JEPS75480  Clarkia rubicunda P. F. Yorks 1975-7-18 473 Contra Costa n of Briones Reservoir (ca 1.9-2.0 km s of Bear Creek Road on Hampton Road in Hampton Road Natural Reserve); Hampton Road Natural Reserve Comment
  RSA113595  Clarkia rubicunda Peter H. Raven 1957-7-5 11049 Contra Costa 0.2 mile from tip of Point Richmond Comment
  JEPS43602  Clarkia unguiculata W. L. Jepson 1918-6-5 7598 Contra Costa Donner Canyon Mt. Diablo 533 Comment
  UC765869  Clarkia unguiculata R. F. Hoover 1937-5-14 2110 Contra Costa Antioch sand-dunes Comment
  CAS-BOT-BC439165  Claytonia exigua subsp. exigua Mary L. Bowerman 1932-3-12 1110 Contra Costa Mount Diablo. Alamo Canyon 350 Comment
  CAS-BOT-BC439167  Claytonia exigua subsp. exigua John Thomas Howell 1926-3-7 1676 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC439172  Claytonia exigua subsp. exigua L. R. Abrams 1921-5-25 8023 Contra Costa Summit, Mt Diablo Comment
  JEPS43337  Claytonia exigua subsp. exigua H. L. Mason 1931-4-5 Contra Costa se of Mt. Diablo (on road from Marsh Creek to Livermore); Upper Marsh Creek Comment
  UC144408  Claytonia exigua subsp. exigua C. F. Baker 1903-4-28 2816 Contra Costa Mitchell's Canyon; Mt. Diablo Comment
  UC692660  Claytonia exigua subsp. exigua Mary L. Bowerman 1932-3-12 1114 Contra Costa Alamo Canyon (50 ft above stream) Alamo Canyon; Mount Diablo 365 Comment
  UC7854  Claytonia exigua subsp. exigua Maclean Mar 1875 Contra Costa Mt. Diablo Comment
  UC7939  Claytonia exigua subsp. exigua State Survey 1862-5-7 1059 Contra Costa Mt. Diablo Summit Comment
  CAS-BOT-BC439332  Claytonia gypsophiloides W. H. Brewer 1862-5-7 1056 Contra Costa Monte [Mount] Diablo Comment
  POM164052  Claytonia gypsophiloides Edward L. Greene 1903-4-28 4611 Contra Costa Mitchell s canon, Mt. Diablo. Comment
  CAS-BOT-BC439440  Claytonia parviflora subsp. parviflora John Thomas Howell 1933-5-14 11252 Contra Costa Hills east of St. Mary's College Comment
  JEPS78750  Claytonia parviflora subsp. parviflora Edward Lee 1936-5-24 2157 Contra Costa about 2 mi se Curry Canyon (Marsh Creek); Morgan Territory, Marsh Creek Comment
  UC1745429  Claytonia parviflora subsp. parviflora Annetta M. Carter, Leo Bowerman 1935-6-1 869 Contra Costa Mt. Diablo. Main ridge running W from peak. 975 Comment
  UC1795876  Claytonia parviflora subsp. parviflora Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14590 Contra Costa North Peak of Mt. Diablo; open rocky flats. 1097 Comment
  UC2027915  Claytonia parviflora subsp. parviflora Barbara Ertter with Dan Norris 2001-4-8 17578 Contra Costa Lime Ridge Open Space east of Walnut Creek, high part of main ridge. Comment
  RSA469286  Claytonia perfoliata Mark Morris 14913 Contra Costa Mt. Diablo. Comment
  CAS-BOT-BC440077  Claytonia perfoliata subsp. perfoliata John Thomas Howell 1931-3-10 5755 Contra Costa East side of Mt. Diablo 7 miles from Clayton on Livermore road Comment
  CHSC21635  Claytonia perfoliata subsp. perfoliata Willis Ball 1975-3-9 488 Contra Costa Contra Loma Regional Park. In area #8. On n facing slope ca. 550 yds sw of main parking lot ca. 780 yds w of Contra Loma Blvd. 137 Comment
  CAS-BOT-BC499321  Clintonia andrewsiana Walter Knight; Irja Knight 1988-5-21 6129 Contra Costa Redwood Regional Park, between pipe bridge and single curb bridge along Stream Trail 274 Comment
  UC41790  Collinsia bartsiifolia var. bartsiifolia Chestnut and Drew 1889-4-16 Contra Costa Concord Comment
  UC1818904  Collinsia heterophylla Barbara Ertter, Mary Bowerman 1994-6-19 12852 a Contra Costa Mt. Diablo State Park east of Walnut Creek; scrub oak thicket north of road, north of lower summit parking lot, next to drainage on north facing slope. Comment
  POM194561  Collinsia sparsiflora Y. Mexia 1929-4-21 2376 Contra Costa Moraga Valley. Comment
  JEPS6336  Collinsia sparsiflora var. collina Mary L. Bowerman 1933-4-9 1836 Contra Costa w fork Donner Canyon Mount Diablo (Mount Diablo); Donner Canyon 243 Comment
  UC766264  Collinsia sparsiflora var. collina R. F. Hoover 1938-3-5 2817 Contra Costa mouth of Kirker Creek Canyon Comment
  POM203034  Collinsia sparsiflora var. collina J. T. Howell 1934-4-8 11810 Contra Costa 7 miles from Clayton on road to Livermore. Comment
  JEPS6312  Collinsia sparsiflora var. sparsiflora W. L. Jepson 1922-4-16 9599 Contra Costa San Pablo Valley Comment
  JEPS79511  Collomia diversifolia Edward Lee 1978-5-13 Contra Costa Meridian Ridge Mt. Diablo Comment
  SEINET3860930  Collomia diversifolia David Gowen 2005-5-28 395 Contra Costa Mt. Diablo State Park, on Meridian Ridge Rd. (dirt fire road), east of Murchio Gap.; 0 Comment
  JEPS75520  Conium maculatum P. F. Yorks 1974-5-19 159 A Contra Costa 1.4 km s of Bear Creek Road (n of Briones Reservoir, on Hampton Road in Hampton Road Natural Preserve); Hampton Road Natural Preserve 180 Comment
  UC1123580  Convolvulus arvensis C. M. Belshaw 1936-5-11 2100 Contra Costa 2 1/2 mi ese Danville (Plot 19); Mt. Diablo Quadrangle Comment
  UC2042954  Convolvulus arvensis Barbara Ertter with David Gowen and Mike Park 2004-6-13 18375 Contra Costa Black Diamond Mines Regional Preserve, near pond on south branch of Old Homestead Loop Trail. Comment
  SEINET198892  Convolvulus sepium var. communis Ira L. Wiggins 1954-5-9 13123 Contra Costa Levee along Bethel Island Comment
  UC1594168  Conyza bilbaoana Jerry Powell 1616 Contra Costa Antioch National Wildlife Refuge Contra Costa Comment
  JEPS99954  Conyza bonariensis A. Langston 2003-9-16 AL 89 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1819029  Corallorhiza striata Barbara Ertter, Chris Thayer 1994-5-19 12785 Contra Costa Redwood Regional Park in Oakland Hills, mid-trail on Mill Trail southeast of Redwood Peak Comment
  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
  CAS-BOT-BC32964  Cordylanthus nidularius John Thomas Howell 1942-7-19 17044 Contra Costa NE of Deer Flat, Mt. Diablo Comment
  RSA412332  Cordylanthus pilosus subsp. pilosus L. S. Rose 1941-8-31 41431 Contra Costa Mt. Diablo, Rocky City. 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
  POM181454  Cornus californica I. L. Wiggins 1930-4-18 4593 Contra Costa East end of Jersey Island. Comment
  UC407391  Cornus sericea subsp. sericea Ira L. Wiggins 1930-4-18 4593 Contra Costa levee e. end Jersey Isl. Comment
  UC650584  Cornus sericea subsp. sericea Ira L. Wiggins 1930-4-18 4593 Contra Costa levee banks e. end Jersey Island Comment
  JEPS96226  Cortaderia jubata Barbara Ertter 1991-9-28 10854 Contra Costa e. end of Schmidt St. at recycling center El Cerrito (s. end of Hillside Natural Area) Comment
  UC1619999  Cotoneaster pannosus Barbara Ertter 1997-1-5 15431 Contra Costa Ygnacio Valley Road at Lime Ridge between Walnut Creek and Clayton, south facing roadcut. Comment
  UC2028107  Cotoneaster pannosus Barbara Ertter with Christopher Baysdorfer 1998-5-10 16117 Contra Costa Lime Ridge Open Space northwest of Mount Diablo. Comment
  CHSC116617  Cotula australis Lowell Ahart; Josephine Guardino 2016-4-19 20799 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. In the middle of the dirt road, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  UC31281  Cotula coronopifolia W. H. Brewer 1862-4-24 993 Contra Costa salt marshes near Bay Martinez Comment
  PASA938  Cotula coronopifolia Annetta Carter 1929-3-31 Contra Costa Near Clayton. Hills north of Mt. Diablo Comment
  UCR182905  Crassocephalum crepidioides G. Fred Hrusa 2006-1-18 16841 A Contra Costa San Pablo, at Stanton and San Pablo Ave Comment
  SBBG122841  Crassula aquatica M. Bowerman 1975-9-14 Contra Costa Hidden Pond, Mt Diablo Comment
  CAS-BOT-BC427673  Crassula connata Ernest C. Twisselmann 1968-4-4 14071 Contra Costa Botanical Garden, Tilden Regional Park 286 Comment
  UC2028142  Crassula tillaea Barbara Ertter 1998-4-4 15973 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, Quarry Hill. Comment
  CDA19637  Crepis bursifolia Doreen Smith, Wilma Follette 2003-10-25 s.n. Contra Costa San Francisco Bay Area; Briones Park. 0 Comment
  JEPS117992  Crepis pulchra Zoya Akulova-Barlow 2011-6-13 Contra Costa Between west end of Gladys Street and Kearney Street. Comment
  JEPS78617  Cressa truxillensis Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3289 Contra Costa Brown Island, Sandy Knoll Comment
  UC692623  Crocanthemum scoparium var. vulgare Mary L. Bowerman 1932-10-1 1598 Contra Costa ridge s Uncle Sam Canyon; Mount Diablo, Eagle Point Ridge Comment
  UC692624  Crocanthemum scoparium var. vulgare Mary L. Bowerman 1931-12-17 1072 Contra Costa e of, s face Rock Canyon; Mount Diablo, Fossil Ridge, Dan Cook Ridge Comment
  RSA289534  Croton californicus Edward Lee, Annetta Carter 1935-8-17 1626 Contra Costa Antioch. Comment
  RSA0033934  Crypsis schoenoides Barbara Ertter, Chris Thayer 1996-10-25 15360 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park. 91 Comment
  UC2027935  Crypsis schoenoides Barbara Ertter with Chris Thayer 1996-10-25 15376 Contra Costa West side of Mount Diablo, North Gate Road 3 road miles below Junction near Mineral Spring. Comment
  UC1950064  Crypsis vaginiflora Barbara Ertter 1989-9-30 8865 Contra Costa Tilden Regional Park E of El Cerrito, East Bay Skyline Nat'l Recreation Trail (=Nimitz Way), pond 1 1/4 mi NW of Inspiration Point. Comment
  UC2027971  Crypsis vaginiflora Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15659 Contra Costa North base of Mount Diablo, pond on Three Springs Road. Comment
  UC2028263  Cryptantha clevelandii Barbara Ertter 1999-6-12 16717 Contra Costa West Branch Alamo Creek on south flank of Mount Diablo, along unofficial path running from north spur of Black Hawk Ridge Road to south spur off of Knob Cone Point Road (near powerline). Comment
  UC691350  Cryptantha clevelandii Mary L. Bowerman 1933-5-18 2129 Contra Costa Southwest of Blackberry Spring Comment
  UC762391  Cryptantha decipiens R. F. Hoover 1938-5-4 3347 Contra Costa Peak E of Tassajero Creek 762 Comment
  UC2028311  Cryptantha decipiens 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. Comment
  SBBG54489  Cryptantha flaccida L. R. Abrams 1921-5-25 8017 Contra Costa Mt Diablo near summit Comment
  POM226201  Cryptantha flaccida Lincoln Constance, Carl Sharsmith, H. S. Reed 1940-4-27 2573 Contra Costa Pine Canyon, base of Mt Diablo 305 Comment
  UC691340  Cryptantha microstachys Mary L. Bowerman 1933-5-25 2183 Contra Costa w end Oyster Ridge (steep n-facing slope, s-face); Mount Diablo 411 Comment
  POM64396  Cryptantha microstachys C. F. Baker 1903-4-28 2810 Contra Costa Mitchell s Canyon, Mt. Diablo. Comment
  UC2028057  Cryptantha muricata Barbara Ertter, Tony Morosco 1998-4-12 16017 Contra Costa Mount Olympia on north side of Mount Diablo, around rocks at summit. Comment
  JEPS108227  Cryptantha nevadensis David Gowen 2005-5-6 283 Contra Costa Mt. Diablo State Park. Rocky outcrops on the south side of North Peak. Comment
  UC763023  Cryptantha nevadensis var. rigida R. F. Hoover 1938-5-4 3348 Contra Costa Peak E of Tassajero Creek 762 Comment
  JEPS67884  Cryptantha torreyana Mary L. Bowerman 1933-6-3 2245 Contra Costa Meridian Peak summit Mt. Diablo Comment
  UC1795800  Cryptantha torreyana Barbara Ertter, Mary L. Bowerman 1994-6-19 12846 a Contra Costa Mt. Diablo State Park east of Walnut Creek; lower Summit Parking Lot, opening on North side, 1127 Comment
  UC691345  Cryptantha torreyana Mary L. Bowerman 1933-5-22 2164 Contra Costa near saddle just west of Cave Point Comment
  CDA33492  Cuscuta japonica Yost 2008-7-17 PDR# 1454020 Contra Costa Antioch; 5124 Paddock Ct. 0 Comment
  CDA33503  Cuscuta japonica Naing/Yost 2009-6-21 PDR# 1503038 Contra Costa Rodeo; 1380 San Pablo Ave. 0 Comment
  CDA33504  Cuscuta japonica R. Fonseca 2008-10-27 PDR# 1455391 Contra Costa Rodeo; 2 California St. 0 Comment
  CDA41311  Cuscuta japonica R. Fonseca 2006-12-12 PDR 1373709 Contra Costa San Francisco Bay Area; 654 Marlesta Rd, Pinole. Sheet 2 of 2. 0 Comment
  UC1818905  Cuscuta occidentalis Barbara Ertter, Mary Bowerman 1994-6-19 12850 a Contra Costa Mt. Diablo State Park east of Walnut Creek; lower Summit Parking Lot, opening in chaparral near radio tower, ca 3600'. Comment
  UC1618294  Cuscuta salina var. major Barbara Ertter 1990-9-30 9658 Contra Costa SW corner of park, Point Pinole Regional Shoreline on San Pablo Bay, north Richmond; NW Contra Costa County Comment
  UCD18453  Cuscuta subinclusa Glen Holstein 2000-7-27 s.n. Contra Costa SE El Sobrante, NE side of San Pablo Ridge. Comment
  CDA4533  Cynara cardunculus T. C. Fuller 1957-10-2 399 -57 Contra Costa Antioch. 0 Comment
  CAS-BOT-BC299744  Cynara cardunculus John Thomas Howell 1953-3-15 28922 Contra Costa Danville Comment
  JEPS111843  Cynoglossum grande D. G. Kelch 2005-2-28 05 .10 Contra Costa Vaca Canyon Alhambra Valley Road 165 Comment
  OBI20821  Cynoglossum grande Neil Havlik 1968-3-25 91 Contra Costa Big Springs Cyn, Charles Lee tilden Regional Park, E of Berkeley Comment
  JEPS100020  Cynosurus echinatus S. O'Neil 2003-5-30 SEO 36 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS99547  Cynosurus echinatus Mary Bowerman 1975-6-7 Contra Costa Mount Diablo, Big Spring. Comment
  CAS-BOT-BC114613  Cyperus eragrostis James McMurphy 1908-10-18 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC114614  Cyperus eragrostis Thomas Morley 1940-12-3 90 Contra Costa Banks at upper end of San Leandro Lake near mouth of Redwood Creek. 129 Comment
  UC665689  Cyperus eragrostis Thomas Morley 1940-12-3 90 Contra Costa banks at upper end San Leandro Lake (near mouth of Redwood Creek) 129 Comment
  UC1818863  Cyperus eragrostis Barbara Ertter, Kristin Ertter 1995-7-11 14470 Contra Costa Sulfur Spring on Pine Cr, Diblo Foothill Regional Park, marshy wet ground. 121 Comment
  UC691967  Cyperus niger Mary L. Bowerman 1932-11-11 1640 Contra Costa Mt. Diablo, Lower Moses Rock Spring Comment
  CAS-BOT-BC113833  Cyperus niger Louis C. Wheeler 1952-10-2 7000 Contra Costa Mount Diablo: ca/ 0.8 mile up from Turtle Ranch, ca. 1 mi downhill from divide in road. Comment
  CAS-BOT-BC113834  Cyperus niger John Thomas Howell 1950-7-5 26633 Contra Costa Spring along North Road, Mt. Diablo. Comment
  UC2029196  Cyperus niger Barbara Ertter 2000-7-16 17384 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park Comment
  UC2028349  Cypselea humifusa Barbara Ertter 2005-8-18 18635 a Contra Costa Mudflats on SE side of San Pablo Reservoir in East BAy Hills, east of San Pablo Dam Road between San Pablo and Orinda, access between HQ and boat launching area [reservoir way down this year while being drained for seismic work on dam] Comment
  RSA666380  Cytisus monspessulanus Barbara J. Ertter 1991-5-12 9816 Contra Costa Point Isabel Regional Shoreline in SW corner of El Cerrito, on San Francisco Bay. Comment
  CDA1575  Danthonia californica var. californica D. G. Kelch 2002-5-24 2 .02 Contra Costa Carquinez Strait; Crockett. On hill S of San Pablo Ave ~0.4 miles W of Carquinez Bridge. Comment
  SEINET2444146  Datisca glomerata C. Davidson, Barbara Ertter 2010-9-1 11791 Contra Costa Mt. Diablo, Donner Canyon. N side of Mt. Diablo State Park. (Regency Dr. access.). 191 Comment
  UC2028007  Datura wrightii Barbara Ertter with Amy Rusev 1998-1-17 15897 Contra Costa Lime Ridge Open Space at NW foot of Mount Diablo, sandy open N-facing slope on NE corner of open space (off trail). Comment
  CAS-BOT-BC287374  Deinandra corymbosa Walter Knight 1979-9-15 3436 Contra Costa Point Pinole Regional Shoreline Comment
  UCD35140  Deinandra corymbosa Beecher Crampton 1950-6-20 596 Contra Costa Richmond Comment
  CAS-BOT-BC294018  Deinandra kelloggii Mrs. Curran 1883-5-1 s.n. Contra Costa Antioch Comment
  SEINET3147522  Deinandra kelloggii K. Brandegee 1907-5-5 19 Contra Costa Near Antioch Comment
  CAS-BOT-BC294026  Deinandra kelloggii H. M. Hall 1930-6-18 12793 Contra Costa Stockton Ranch, south of Antioch Comment
  CAS-BOT-BC291805  Deinandra lobbii H. M. Hall 1930-6-18 12791 Contra Costa South of Pittsburg Comment
  LA207418  Delphinium hansenii H. Lewis; Carl Epling 1946-5-5 605 Contra Costa 0.5 mi. S of Somersville Comment
  UC1018502  Delphinium hansenii subsp. hansenii H. Lewis and C. Epling 1946-5-5 605 Contra Costa 0.5 mi s Somersville Comment
  UC2029185  Delphinium hesperium Barbara Ertter 2000-5-14 17004 Contra Costa Donner Canyon on north side of Mount Diablo, junction of Donner Canyon, Cardinet Oaks, and Meridian Ridge Roads. Comment
  UC101573  Delphinium hesperium subsp. pallescens Katharine Brandegee 1907-5-3 Contra Costa bet. Antioch and Marsh Creek Comment
  JEPS112062  Delphinium nudicaule A. G. Murdock 2004-4-30 243 Contra Costa Vaca Canyon 165 Comment
  UCD102391  Delphinium nudicaule Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Bald Ridge Trail. Bald Ridge. 890 Comment
  UC69615  Delphinium parryi subsp. parryi R. C. Marsh 1900-4-5 Contra Costa Oakley Comment
  JEPS99976  Delphinium patens G. Smick 2003-3-25 GAS 79 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD102398  Delphinium patens Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Bald Ridge Trail. Bald Ridge. 890 Comment
  UCD96542  Delphinium patens P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo Summit. Comment
  CAS-BOT-BC116457  Delphinium patens subsp. patens Alice Eastwood 1915-5-30 4497 Contra Costa Mt. Diablo Comment
  JEPS65196  Delphinium patens subsp. patens L. R. Heckard 1971-4-15 2471 Contra Costa along Morgan Territory road 7 mi n intersection with Manning road (e of Mt. Diablo) 487 Comment
  POM270661  Delphinium patens subsp. patens Lyman Benson 1935-3-16 62655 Contra Costa Mt. Diablo, Watershed: Walnut Creek; Mountain Range: Mt. Diablo. 915 Comment
  JEPS62388  Delphinium variegatum W. L. Jepson 1922-5-23 9658 Contra Costa Mt. Diablo Comment
  UCSB11260  Delphinium variegatum Hayes, Judy 1961-3-30 Contra Costa South Gate of Mount Diablo State Park 182 Comment
  UC13975  Delphinium variegatum subsp. variegatum Chestnut and Drew 1889-4-6 Contra Costa Concord Comment
  CAS-BOT-BC11024  Dendromecon rigida John Thomas Howell 1925-10-11 1497 Contra Costa Moraga Ridge, Oakland Hills Comment
  UC2070612  Deschampsia cespitosa subsp. holciformis Barbara Ertter with Chris Thayer, Dianne Lake et al. 2001-5-26 17657 Contra Costa Stamm Unit of Antioch Dunes National Wildlife Refuge east of Antioch. Comment
  UC1024732  Deschampsia danthonioides Leo Whitney 1935-4-21 3057 Contra Costa 4 mi. e. Corral Hollow Comment
  CAS-BOT-BC192675  Deschampsia danthonioides Walter Knight; Irja Knight; Mary L. Bowerman 1969-6-4 2621 Contra Costa 100 yds west of Chase Pond. Mt. Diablo 554 Comment
  CAS-BOT-BC192677  Deschampsia danthonioides Mary L. Bowerman 1935-6-28 3164 Contra Costa Chase Pond 548 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
  RSA0029050  Deschampsia elongata Barbara Ertter 1999-6-12 16710 Contra Costa Black Hawk Ridge road on south side of Mount Diablo, road crossing at confluence of NE and E forks of Sycamore Creek. 396 Comment
  SEINET3927628  Deschampsia elongata Glen Holstein 2000-7-27 s.n. Contra Costa SE El Sobrante, NE side of San Pablo Ridge.; 0 Comment
  JEPS9568  Dicentra chrysantha W. L. Jepson 1920-8-12 9076 Contra Costa s slope towards summit Mt. Diablo Comment
  UC33546  Dicentra chrysantha V. K. Chesnut before August, 1901 Contra Costa Mt. Diablo Comment
  UC1133885  Dichelostemma capitatum R. C. Wilson 1935-3-19 138 Contra Costa 2 mi nw Wall Pt.; Mt. Diablo 335 Comment
  UC1300933  Dichelostemma capitatum Helen K. Sharsmith 1962-3-25 4909 Contra Costa hills between Happy Valley and Alhambra Valley; San Francisco Bay Region 304 Comment
  JEPS100059  Dichelostemma congestum G. Smick 2003-5-8 GAS 69 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS112492  Dichelostemma congestum D. G. Kelch 2005-4-24 05 .171 Contra Costa Franklin Canyon Franklin Canyon. Collier Hill. West Carbon. On knoll between fenced hill and railroad cut. 60 Comment
  JEPS121009  Digitaria sanguinalis D. G. Kelch 2006-9-6 06 .469 Contra Costa Elkhorn Creek, E of Crockett Comment
  CHSC39486  Diplacus aurantiacus Tyler Williams 1984-4-18 24 Contra Costa Ca. 20 yd nw of Bridal Nook Picnic Area on e side of South Park Rd., in Mt. Diablo State Park. 533 Comment
  CAS-BOT-BC121843  Dirca occidentalis Frank Walton Gould 1940-2-8 864 Contra Costa Grizzly Peak 289 Comment
  CAS-BOT-BC121844  Dirca occidentalis Charles M. Belshaw 1935-3-3 372 Contra Costa On NE slope of Bald Peak Comment
  CAS-BOT-BC238191  Dirca occidentalis James R. Shevock 2012-8-12 40655 Contra Costa San Francisco Bay Region. Tilden Regional Park, East Bay Regional Park District. Along Grizzly Peak Trail less than 0.25 mi from upper trailhead off Grizzly Peak Road 445 Comment
  UCR143109  Dirca occidentalis L. S. Rose 1948-3-9 48011 Contra Costa San Francisco Bay Region, head of Wildcat Canyon, Berkeley hills 457 Comment
Read comments Feb 14 2006
  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
  UCD64394  Distichlis spicata var. stolonifera M. Wiesendanger 1926-6-1 1534 Contra Costa Richmond. Comment
  UC1050383  Distictis lactiflora N. Floy Bracelin 1942-8-23 1683 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CHSC99232  Dittrichia graveolens John Dittes 2006-10-26 1412 Contra Costa San Joaquin Valley (foothills near nw edge); ca. 2.0 air miles south of Marsh Creek Gauging Station, 1.6 air miles south of Marsh Creek Reservoir Gauging Station, 1.6 air miles southwest of Intersection of Camino Diablo and Vasco Road; Contra Costa Water District's Los Vaqueros Watershed Mitigation Project Area. 67 Comment
Read comments Aug 22 2009
  JEPS111737  Dittrichia graveolens D. G. Kelch 2004-12-4 04 .346 Contra Costa Rodeo Shore 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
  UCR146709  Dittrichia graveolens Tina Carlsen 1996-10-9 s.n. Contra Costa Livermore, east side of Greenville Rd., c. 0.5 mi south of I-580 183 Comment
  UC1039585  Dodecatheon clevelandii subsp. patulum Herbert L. Mason 1925-2-28 1260 Contra Costa 1/2 mi e Rodeo; e of Rodeo Comment
  HSC101959  Dodecatheon hendersonii Nikolaus Gillen, Michelle Bihler 2014-3-20 11 Contra Costa Mount Diablo State Park. Eagle Peak Trail. 649 Comment
  JEPS112045  Dodecatheon hendersonii D. G. Kelch 2003-3-21 03 .52 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  JEPS99973  Dodecatheon hendersonii S. O'Neil 2003-3-11 SEO 7 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1123275  Dodecatheon hendersonii R. C. Wilson 1935-2-27 114 Contra Costa Somersville Mt. Diablo Quad. Comment
  SEINET8561944  Dodecatheon hendersonii P. Del Monte 1976-3-28 s.n. Contra Costa Oakhill Lane, 1 mile above junction with Morgan Territory Road. 305 Comment
  UC1188740  Downingia insignis John H. Weiler 1959-4-11 5954 Contra Costa 3 mi w Byron (on the w side of the road) Comment
  UC583159  Downingia insignis Lewis S. Rose 1936-4-24 36154 Contra Costa 8 mi s Antioch 30 Comment
  UC765619  Downingia insignis R. F. Hoover 1937-5-14 2117 Contra Costa Bryon Hot Springs Comment
  UC924239  Downingia insignis H. S. Reed 1940-4-30 356 a Contra Costa 6 mi s Antioch 15 Comment
  RSA721284  Downingia pulchella Barbara Ertter, Tom Delendick 1996-5-2 14607 Contra Costa Spring town wetlands, N of Livermore, along closed section of Hartford Rd. Comment
  CAS-BOT-BC70864  Dryopteris arguta Mary L. Bowerman 1930-6-18 342 Contra Costa Dan Cook Canyon Comment
  JEPS100162  Dryopteris arguta A. Langston 2003-6-19 AL 50 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS60041  Dryopteris arguta W. L. Jepson 1923-4-22 9869 Contra Costa Mt Diablo Comment
  UC606763  Dryopteris arguta Edward Lee 1936-4-19 1981 Contra Costa e slope Red Rock; San Francisco Bay Comment
  CAS-BOT-BC70862  Dryopteris arguta R. Bacigalupi 1922-9-24 s.n. Contra Costa Mitchell Canyon of Mt. Diablo 213 Comment
  SDSU12953  Dudleya cymosa subsp. cymosa Darren Burton 1998-8-18 18 VIII1998a Contra Costa Mt. Diablo open space recreational area, north of Mt. Diablo State Park. Along trail to falls, from Regency Rd. entrance, Clayton. 472 Comment
Read comments Oct 23 2014
  UC692560  Dudleya cymosa subsp. paniculata Mary L. Bowerman 1931-6-17 925 Contra Costa e side Riggs Canyon Comment
  UC2028322  Dudleya cymosa subsp. paniculata Barbara Ertter, Susan D'Alcamo 1998-6-12 16154 Contra Costa North Gate Road on west flank of Mount Diablo near Buckle Point Comment
  UC1357009  Dudleya farinosa C. H. Uhl 1954-6-1 360 Contra Costa Richmond Point Comment
  JEPS128780  Dysphania chilensis Kevin Hintsa 2000-8-17 Contra Costa Mount Diablo State Park, flats just upstream from Pine Pond's willow forest. Comment
  UC1795670  Echinochloa crus-galli Barbara Ertter, Kristin Ertter 1995-7-11 14486 Contra Costa West side of Mt Diablo; mudflat around inlet to Pine Pond. Comment
  UC1050510  Echium fastuosum N. Floy Bracelin 1941-4-20 1215 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC291118  Eclipta prostrata Walter Knight; Irja Knight 1980-8-26 3770 Contra Costa Hercules Comment
  UC2027964  Ehrendorferia chrysantha Barbara Ertter 1997-8-24 15771 Contra Costa Mount Diablo, near first corner on Summit Road below Toyon Campground. Comment
  UC1949380  Eichhornia crassipes Barbara Ertter 1990-9-16 9642 Contra Costa Junction of Cypress Road & Jersey Island Road E of Oakley Comment
  UC692626  Elatine californica Mary L. Bowerman 1935-7-22 3186 Contra Costa s side Meridian Peak (Hidden Pond); Mount Diablo Comment
  UC691972  Eleocharis macrostachya Mary Bowerman 1935-6-21 3152 Contra Costa S of Turtle Rock (pool E of main pond); Mount Diablo Comment
  UCR263535  Eleocharis macrostachya Barbara Ertter 1998-5-3 16062 Contra Costa Central Coast, area of Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo, below road southeast of ponds 305 Comment
  CAS-BOT-BC112799  Eleocharis macrostachya Miss Mary Leolin Bowerman 1938-5-28 3645 Contra Costa Maple Spring, on upper margin especially in the NW corner. Comment
  SBBG122783  Elodea canadensis B. Ertter, B. Olson 1991-9-28 10841 Contra Costa S end of San Pablo Reservoir, between Orinda and El Sobrante 91 Comment
  SEINET3874805  Elodea densa L. Thorne, N. Thorne 1987-9-20 s.n. Contra Costa The Delta Area, Frank's Tract. Plant growing in the water. Brazilian water-weed, used in aquariums.; 0 Comment
  POM205573  Elymus X gouldii Jos Burtt Davy 1898-05 1742 Contra Costa Port Costa, on a steep bank Comment
  RSA108326  Elymus X gouldii Frank W. Gould 1941-5-8 1291 Contra Costa near Bay at Winehaven (near r Richmond); Altitude near sea level Comment
  SD58360  Elymus condensatus W. L. Jepson 1937-7-2 18445 Contra Costa in a swale one-half mile west of Crockett Comment
  JEPS99567  Elymus elymoides Mary Bowerman 1975-6-7 Contra Costa Mount Diablo, by Big Spring trail. Comment
  CDA1574  Elymus glaucus D. G. Kelch 2002-5-24 2 .017 Contra Costa Carquinez Strait; 5th St. Prairie, Crockett. Comment
  UC692431  Elymus glaucus Mary L. Bowerman 1935-5-16 3009 Contra Costa behind Gabriel-Hinks' (e side of peak); Mount Diablo, North Peak 289 Comment
  UC691171  Elymus multisetus Mary L. Bowerman 1938-6-24 3690 Contra Costa Canyon Nook Mount Diablo (e side of creek) 670 Comment
  UC692418  Elymus multisetus Mary L. Bowerman 1935-5-25 3067 Contra Costa Mount Diablo; s of summit 1066 Comment
  POM301024  Elymus trachycaulus subsp. trachycaulus Mary L. Bowerman 1933-6-3 2234 Contra Costa Mount Diablo Summit. Ransom Point Trail Comment
  UC1795674  Elymus trachycaulus subsp. trachycaulus Barbara Ertter, Holly Forbes 1996-2-11 14550 Contra Costa North side Mount Diablo; North Peak trail on east side on main peak, steep slope, openings among scrub oak, umbellularia. 1005 Comment
  CDA2043  Elytrigia elongata T. C. Fuller 1961-9-13 7001 Contra Costa Hwy J4, ca. 4 miles southeast of Byron. 0 Comment
  CDA2059  Elytrigia repens Margaret Bellue 1948-1 Contra Costa Moraga Del Rey. (Vicinity S.F.) Moraga . 0 Comment
  UC2045290 Image available Emmenanthe penduliflora Mary L. Bowerman 1930-6-10 313 Contra Costa Meridian Peak summit Comment
  JEPS75484  Epilobium brachycarpum P. F. Yorks 1974-10-13 372 Contra Costa on Hampton Rd ca 1.9 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve 200 Comment
  UC692459  Epilobium brachycarpum Mary L. Bowerman 1930-8-31 448 a Contra Costa e main road (near gully); Mount Diablo, Inner Black Hills Comment
  UCD150882  Epilobium brachycarpum James A. Neilson Jr. 1972-11-2 3605 Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 Comment
  UC101787  Epilobium campestre Katharine Brandegee 1907-6-16 Contra Costa near S. P. Railway Station; Antioch Comment
  CDA38092  Epilobium canum A. G. Murdock 2003-9-12 197 Contra Costa Carquinez Strait Region; Crockett - Tormey Headlands. At Superfund overlook. Comment
  CAS-BOT-BC166166  Epilobium canum subsp. canum John Thomas Howell 1925-11-1 1536 Contra Costa Moraga Ridge, Oakland Hills Comment
  UC1745971  Epilobium canum subsp. canum Annetta M. Carter 1933-11-25 418 Contra Costa Mount Diablo Comment
  UC521671  Epilobium canum subsp. canum Joseph Andorfer Ewan 1933-10-15 8023 Contra Costa water tank at Indian Ceremonial Spr. Mt. Diablo Comment
  UC2027841  Epilobium ciliatum Barbara Ertter 2000-9-30 17535 Contra Costa West side Mount Diablo, pond on China Wall Road ca 1/2 mile NW of Macedo Ranch. Comment
  UC1122560  Epilobium ciliatum subsp. ciliatum H. S. Yates 1934-9-2 4074 Contra Costa 1 1/2 mi nw Orinda; Concord Quadrangle 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
  UCD105799  Epilobium ciliatum subsp. ciliatum Terri Williamson 1990-5-22 72 Contra Costa 212 Poshard St. Pleasant Hill. 12 Comment
  UC692449  Epilobium densiflorum Mary L. Bowerman 1930-6-28 390 Contra Costa Lower Silver Spring Mount Diablo (marshy area) Comment
  CAS-BOT-BC57259  Equisetum laevigatum Mary L. Bowerman 1931-5-16 864 Contra Costa Lower Silver Spring Comment
  JEPS111942  Equisetum telmateia subsp. braunii D. G. Kelch 2004-7-9 04 .292B Contra Costa Crockett: Edwards Creek 5 Comment
  POM300620  Equisetum telmateia var. braunii Mary L. Bowerman 1939-3-31 3737 Contra Costa Johnny Walker Spring. 732 Comment
  UCD63093  Eragrostis curvula Beecher Crampton 1965-9-29 7526 Contra Costa 5 miles south of Brentwood Vasco Road and Camino Vaqueros. Comment
  CAS-BOT-BC204545  Eragrostis curvula George W. Murray 1964-7-24 s.n. Contra Costa 1 to 2 miles east of Clayton, Marsh Creek Road Comment
  CAS-BOT-BC204547  Eragrostis curvula John Thomas Howell 1954-9-5 30026 Contra Costa Marsh Creek Springs Park Comment
  UC630417  Eremocarpus setiger Paule Guiget and Annetta Carter 1939-8-13 1452 Contra Costa on Marsh Creek rd 2.8 mi e Clayton 213 Comment
  UC691864  Ericameria arborescens Mary L. Bowerman 1933-9-9 2438 Contra Costa ridge above Frog Pond; Mt. Diablo Comment
  CAS-BOT-BC287530  Ericameria linearifolia W. W. Carruth 1902-4-29 s.n. Contra Costa Mt Diablo Comment
  CAS-BOT-BC287536  Ericameria linearifolia A. Kellogg; W. G. W. Harford 1868-4-30 548 Contra Costa Mt Diablo Comment
  UC1614256  Ericameria linearifolia Charles M. Belshaw 1935-6-10 697 Contra Costa Morgan Territory Rd. e. side of Mt. Diablo Comment
  UC36557  Ericameria linearifolia F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  UC691863  Ericameria linearifolia Mary L. Bowerman 1930-6-18 351 Contra Costa Meridian Peak summit Mount Diablo, Meridian Peak (open rocky slope on e side) Comment
  CAS-BOT-BC300590  Erigeron foliosus var. franciscensis L. R. Abrams 1916-6-30 5701 Contra Costa Mt. Diablo near lake Comment
  UC1606301  Erigeron foliosus var. franciscensis Barbara Ertter with Lynne Hosley and Sid Cowles 1992-6-7 11083 Contra Costa small knoll e Round Top; Oakland Hills, Sibley Volcanic Regional Preserve Comment
  UC691859  Erigeron foliosus var. franciscensis Mary L. Bowerman 1932-9-5 1550 Contra Costa e of the meridian Inner Black Hills; Mount Diablo, Inner Black Hills Comment
  SBBG44960  Erigeron petrophilus J. A. Ewan 1936-7-5 9735 Contra Costa Wildcat Crk Comment
  UC691786  Erigeron petrophilus var. petrophilus Mary L. Bowerman 1930-10-19 489 Contra Costa at Garden-of-the-Gods; Mount Diablo, Fossil (Rock City) Ridge Comment
  RSA517729  Erigeron philadelphicus Donald G. Nelson 1938-4-24 566 Contra Costa Marsh Creek Highway, 1 mile north of Mt. Diablo Comment
  JEPS111660  Erigeron philadelphicus var. philadelphicus A. G. Murdock 2004-4-30 251 Contra Costa McEwen Road West side of road 130 Comment
  CAS-BOT-BC224219  Eriodictyon californicum L. R. Abrams 1921-5-25 8061 Contra Costa On road to summit, Mt Diablo Comment
  UC1789160  Eriogonum fasciculatum Barbara Ertter 2001-9-3 17807 Contra Costa Sibley Volcanic Regional Park, area excavated for water tank on west side of Round Top, basaltic. Comment
  UCR263530  Eriogonum gracile Barbara Ertter, Tony Morosco 1996-7-27 15040 Contra Costa north side of Mount Diablo south of Clayton, where Cardinet Oaks Road crosses Donner Creek 335 Comment
  UC1735889  Eriogonum gracile var. gracile Dean W. Taylor 1992-4-16 12388 B Contra Costa S of Byron Hot Springs, in swale draining on E margin of NE1/4 SE1/4 Section 34S of Byron Hot Springs, in swale draining on E margin of NE1/4 SE1/4 Section 34 45 Comment
  UC767894  Eriogonum luteolum var. luteolum R. F. Hoover 1937-9-2 2714 Contra Costa Lower Marsh Creek Canyon Comment
  JEPS107089  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
  UC691129  Eriogonum nudum var. auriculatum Mary L. Bowerman 1932-9-17 1585 Contra Costa west fork of west fork Donner Canyon; Mount Diablo 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
  UC692046  Eriogonum nudum var. auriculatum Mary L. Bowerman 1931-9-12 1037 Contra Costa Mitchell Canyon, spur jutting out into w fork Mount Diablo 838 Comment
  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-BC268911  Eriogonum nudum var. auriculatum Peter Rubtzoff 1951-10-7 813 Contra Costa 1 to 2 mi. southwest of Moraga 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
  UC635005  Eriogonum nudum var. pubiflorum H. L. Mason 1929-9-21 5433 Contra Costa 3 mi above Clayton (Marsh Creek road) Comment
  JEPS102915  Eriogonum roseum Barbara Ertter with Tony Morosco 1998-10-18 16436 Contra Costa NE corner of Lime Ridge recreation Area Mount Diablo 182 Comment
  RSA0033856  Eriogonum roseum Barbara Ertter, Tony Morosco 1998-9-18 16436 Contra Costa NE corner of Lime Ridge Open Space northwest of Mount Diablo. 182 Comment
  UC692152  Eriogonum truncatum Mary L. Bowerman 1933-5-25 2198 Contra Costa Mount Diablo Comment
  CAS-BOT-BC267871  Eriogonum umbellatum var. bahiiforme A. D. E. Elmer 1903-7-1 4547 Contra Costa Mount Diablo Comment
  UC691562  Eriogonum umbellatum var. bahiiforme Mary L. Bowerman 1930-6-14 328 Contra Costa summit Mount Diablo Mount Diablo Comment
  CAS-BOT-BC262349  Eriogonum vimineum Mary L. Bowerman 1931-9-12 1038 Contra Costa Mount Diablo. Mitchell Canyon, spur jutting into west fork 838 Comment
  CAS-BOT-BC300925  Eriophyllum jepsonii Mary L. Bowerman 1936-5-6 3409 Contra Costa Mount Diablo. Uncle Sam Canyon 304 Comment
  CAS-BOT-BC300983  Eriophyllum lanatum var. achilleoides E. E. Stanford 1930-5-24 1513 Contra Costa Marsh Creek Canyon Comment
  JEPS34610  Eriophyllum lanatum var. achilleoides W. L. Jepson 1919-6-8 8328 Contra Costa Mt. Diablo Comment
  UC691662  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1935-5-30 3097 a Contra Costa Eagle Point ridge = between the two n ridges which converge at Twin Peaks; Mt. Diablo, Eagle Point ridge 350 Comment
  UC691668  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1935-5-30 3097 b Contra Costa Eagle Point ridge = between the two n ridges which converge at Twin Peaks; Mt. Diablo, Eagle Point ridge 350 Comment
  UC697147  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1938-6-14 3687 Contra Costa 0.3 mi below Muir Area Mt. Diablo 960 Comment
  POM301020  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1938-6-14 3687 Contra Costa Rocky roadside bank 0.3 mile below Muir Area 960 Comment
  UCSB6523  Eriophyllum lanatum var. arachnoideum Keator, Glenn 1959-7-1 Contra Costa 1/4 mile above Laurel camp on Mt. Diablo Comment
  JEPS111971  Erodium cicutarium D. G. Kelch 2003-3-21 03 .67 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 2 miles west of Martinez Contra Costa County CA. Grassy hill above cottonwood tree. Just south of end gate of Carquinez Scenic Drive 40 Comment
  POM127732  Erodium macrophyllum Katherine Brandegee 1907-5-5 s.n. Contra Costa Judsonville near Antioch. Comment
  SD180608  Eryngium aristulatum Beecher Crampton 1950-8-22 620 Contra Costa Railroad right-of-way, Richmond. Comment
  JEPS15863  Eryngium aristulatum var. aristulatum W. L. Jepson 1894-9-7 14282 Contra Costa foot of sharp canyon e. of Bald Peak at Orinda; Berkeley Hills 121 Comment
  JEPS15973 Image available Eryngium aristulatum var. aristulatum W. L. Jepson 1895-9-7 14275 Contra Costa Orinda Park; ; Orinda Park, Contra Costa Co. 121 Comment
  UC1191950  Eryngium aristulatum var. aristulatum Peter Kamb, Francia Chisaki, and S. Galen Smith 1951-4-14 1954 Contra Costa 7 mi. n. Walnut Creek (e. of Hwy. 21, 0.2 mi. s. intersection w/ Hwy. 4) 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
  CDA38330  Eryngium armatum Chas. Lasser 1960-4-21 s.n. Contra Costa Pittsburg. 0 Comment
  JEPS99526  Eryngium castrense Mary L. Bowerman 1975-9-14 Contra Costa Mount Diablo, Hidden Pond. Comment
  UC692327  Eryngium castrense Mary L. Bowerman 1935-6-28 3171 Contra Costa Mt. Diablo, Chase Pond Comment
  CDA9196  Eryngium jepsonii Christopher Thayer 2000-5-26 s.n. Contra Costa On moist, grassy slope just south of boundary of Rossmoor. Lucas Ranch, Lafayette. 0 Comment
  CAS-BOT-BC40768  Erysimum capitatum G. B. Rossbach; R. P. Rossbach 1938-6-5 858 a Contra Costa Along tidal estuary of San Joaquin River just east of Antioch. Comment
  CAS-BOT-BC40769  Erysimum capitatum G. B. Rossbach; R. P. Rossbach 1938-6-5 858 b Contra Costa Along tidal estuary of San Joaquin River just east of Antioch. Comment
  UC1034739  Erysimum capitatum G. B. Rossbach 1955-3-20 571 Contra Costa steep upper s slope Mount Diablo 1005 Comment
  CAS-BOT-BC40756  Erysimum capitatum G. B. Rossbach 1955-3-20 571 Contra Costa Upper south slope of Mount Diablo. 1005 Comment
  RSA0008584  Erysimum capitatum var. angustatum H. L. Mason 1933-4-9 7189 Contra Costa East of Antioch along the San Joaquin River. 12 Comment
  RSA0008586  Erysimum capitatum var. angustatum James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  SBBG92005  Erysimum capitatum var. capitatum H. L. Mason 1933-4-9 7189 Contra Costa E of Antioch along the San Joaquin River 12 Comment
  UC1034753  Erysimum capitatum var. capitatum G. B. Rossbach 1955-3-13 570 Contra Costa dunes along tidal estuary of river just e Antioch; San Joaquin R Comment
  UC10536  Erysimum capitatum var. capitatum J. Burtt Davy and E. L. Greene 1895-4-7 996 Contra Costa Antioch Comment
  UC534852  Erysimum capitatum var. capitatum H. L. Mason 1933-4-9 7189 Contra Costa sand hills along river e Antioch; San Joaquin River 12 Comment
  UC2046329  Erythranthe nasuta Barbara Ertter with Alan Prather 2003-6-7 18200 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, creek alongside west end Stone Corral Trail, south of Highland Ridge Trail junction. Comment
  UC118493  Eschscholzia californica T. S. Brandegee May 1883 Contra Costa Antioch Comment
  CAS-BOT-BC402982  Eschscholzia californica R. Bacigalupi 1922-9-24 s.n. Contra Costa Road between Concord and Clayton Comment
  UC170265  Eschscholzia rhombipetala E. L. Greene March, 1888 Contra Costa near Byron Springs Comment
  UC2028162  Eucalyptus sideroxylon Barbara Ertter with Laura Fujii 1999-3-7 16483 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, near Alvarado Staging area at NW end of park, along hiking road. Comment
  JEPS111510  Eucrypta chrysanthemifolia var. chrysanthemifolia Dean G. Kelch and Andrew G. Murdock 2005-5-13 05 .273 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 22 Comment
  JEPS1715  Eucrypta chrysanthemifolia var. chrysanthemifolia Mary L. Bowerman 1931-4-4 652 Contra Costa 4.5 mi from Mount Diablo, West road entrance; Mount Diablo 396 Comment
  UC35514  Eucrypta chrysanthemifolia var. chrysanthemifolia Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  UC2028112  Eucrypta chrysanthemifolia var. chrysanthemifolia Barbara Ertter with Christopher Baysdorfer 1998-5-10 16110 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, along Ohlone Trail. Comment
  UC570798  Euphorbia crenulata H. L. Mason 1926-3-7 2701 Contra Costa Mount Diablo Comment
  RSA224327  Euphorbia crenulata Paul F. Covel 1938-5-1 1496 Contra Costa Old Tunnel Road. Comment
  UC2027934  Euphorbia maculata Barbara Ertter with Chris Thayer 1996-10-25 15382 Contra Costa West side of Mount Diablo, North Gate Road 3 road miles below Junction near Mineral Spring. 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
  CDA35612  Euphorbia oblongata V. Guise 2011-5-2 PDR# 1649668 Contra Costa Danville; 2600 Finley Road. 0 Comment
  CDA7731  Euphorbia oblongata Deviney 2008-4-18 PDR# 1454510 Contra Costa Carquinez Strait; Pacheco, Waterbird Way X Hwy 680 0 Comment
  UCR247571  Euphorbia oblongata Deviney 2008-4-18 s.n. Contra Costa Pacheco, Waterbird Way and Hwy 680 Comment
  CDA4843  Euphorbia oblongata T. C. Fuller 1961-7-6 6585 Contra Costa Carquinez Strait; Alhambra Valley, Highway 4, 0.5 mile west of Glen Frazier Station, ca. 4 miles west of Martinez. 0 Comment
  CDA4846  Euphorbia oblongata Margaret Bellue, A. Seeley Jun 1955 Contra Costa Highway 4, near Concord. 0 Comment
  UCD142407  Euphorbia oblongata William E. Davis 1981-4-23 s.n. Contra Costa Martinez; along Franklin Creek in John Muir National Historic Site. Comment
  UC692696  Euphorbia spathulata Mary L. Bowerman 1931-5-2 792 Contra Costa n end Eagle Point ridge; Mount Diablo Comment
  UC2028012  Eurybia radulina Barbara Ertter 1997-11-1 15882 Contra Costa South side Mount Diablo, end of spur road east of Knobcone Point, below powerline crossing at head of Alamo Creek drainage. Comment
  CDA5289  Euthamia occidentalis D. G. Kelch 2004-7-9 4 .309 Contra Costa Carquinez Strait Region; Pacheco Marsh. Pacheco Hill Marsh west of Pacheco Slough. Comment
  JEPS41063  Festuca rubra Rimo Bacigalupi, and L. R. Heckard 1965-5-11 9088 Contra Costa sw of Richmond; San Francisco Bay, Brooks Island Comment
  SEINET257983  Festuca rubra M. Barkworth, D Amme 1989-6-15 5168 Contra Costa Bluffs back of beach just N of Castro Point Comment
  UC606733  Festuca rubra Edward Lee 1936-4-19 1952 Contra Costa ne shore Rock; Red Rock Comment
  UCD66332  Festuca rubra P. B. Kennedy 1919-5-1 s.n. Contra Costa North Berkeley. Hills. Comment
  RSA93678  Filago gallica H. L. Mason 1928-4-26 4386 Contra Costa Berekeley-Oakland Hills Comment
  CHSC75044  Foeniculum vulgare Roger Thom 1987-5-18 13 Contra Costa 1.0mi from intersection with Pleasant Hill Rd on Reliez Valley Road. Lafayette. (1600 block) 182 Comment
  UC691117  Fragaria vesca Mary L. Bowerman 1931-3-29 623 Contra Costa n-face East Cave Point Ridge; Mount Diablo Comment
  UC2027914  Frangula californica subsp. tomentella Barbara Ertter 2000-9-30 17529 Contra Costa Diablo Foothills Regional Park, Stage Road in Pine Canyon. Comment
  CHSC23360  Frankenia salina Willis Ball 1975-6-1 534 Contra Costa Contra Loma Regional Park. In area #11. On s side of road ca. 200 yds e of main entrance to park. 60 Comment
  RSA739727  Frankenia salina John Dittes 2006-10-26 1413 Contra Costa San Joaquin Valley (foothills near NW edge) 2 air mile S of Marsh Creek Reservoir Gauging Station, 1.6 air mile SW of intersection of Camino Diablo and Vasco Road, Contra Costa Water District's Los Vaqueros Watershed Mitigation. 67 Comment
  UC2028959  Frankenia salina Barbara Ertter 2002-8-24 18022 Contra Costa Dunn Creek south of Mount Diablo Mine property on NE base of Mount Diablo. Comment
  UC1795649  Fraxinus dipetala Barbara Ertter, Brad Olson, Diane Lake, Seth Adams, et al. 1994-9-11 13081 Contra Costa Chaparral Springs addition to Mt. Diablo State Park, north side of Marsh Creek Road at high point southeast of Clayton, open oak woodland (Canyon live oak, blue oak, buckeye); north facing slope with local grove of Fraxinus, Aesculus, toyon. Comment
  JEPS112503  Fritillaria affinis A. G. Murdock 2004-4-30 262 Contra Costa Vaca Canyon 165 Comment
  UC672112  Fritillaria affinis Herbert L. Mason 1925-3-10 1293 Contra Costa Mount Diablo, Sycamore Canyon Sycamore Canyon; Mount Diablo, Sycamore Canyon Comment
  SEINET196591  Fritillaria liliacea Robert F. Hoover 1938-3-8 2819 Contra Costa Berkeley Country Club. Comment
  SBBG122904  Fumaria capreolata B. Ertter 1999-3-21 16486 Contra Costa Miller Knox Regional Park near Pt Richmond Comment
  UCR160111  Fumaria capreolata M. I. Wibawa 2003-3-1 331 Contra Costa San Francisco Bay Region, along sidewalk on corner of Junction Ave. and Hagen Blvd., El Cerrito 44 Comment
  SD241825  Fumaria capreolata Barbara Ertter 1999-3-21 16486 Contra Costa Miller Knox Regional Park near Point Richmond, edge of old excavation into rock (southeast of Richmond Ramblers building) Comment
  UC691532  Galium andrewsii subsp. gatense Mary L. Bowerman 1930-6-7 283 Contra Costa summit Mount Diablo Comment
  UC1948947  Galium aparine William J. Ferlatte, L. Maynard Moe 1970-4-27 1247 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC691538  Galium aparine Mary L. Bowerman 1930-6-10 310 Contra Costa summit Mount Diablo Comment
  CDA33985  Galium aparine D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .11 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  HSC19785  Galium aparine Greg Bos 1963-4-20 86 Contra Costa Pinole Valley Rd., SE of Pinole Flat Meadow area 76 Comment
  UC2027965  Galium californicum subsp. californicum Barbara Ertter 1997-8-24 15770 a Contra Costa South side of Mount Diablo, Curry Canyon Road from Curry Point. Comment
  JEPS23262  Galium divaricatum G. Thomas Robbins 1959-5-23 4031 Contra Costa hillslope about one-half mi e Point San Pablo (overlooking San Pablo Bay); Richmond 7 Comment
  JEPS112108  Galium murale D. G. Kelch 2004-3-12 04 .36 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road 220 Comment
  UCSB6254  Galium nuttallii subsp. nuttallii Keator, Glenn 1959-7-1 Contra Costa Laurel camp on Mt. Diablo Comment
  UC2028303  Galium parisiense Barbara Ertter, Susan D'Alcamo 1998-6-12 16168 Contra Costa North Peak Trail from Devil's Elbow on SE side of Mount Diablo summit. Comment
  JEPS41059  Galium porrigens var. porrigens Rimo Bacigalupi and L. R. Heckard 1965-5-11 9086 Contra Costa se Richmond; San Francisco Bay, Brooks Island 30 Comment
  CAS-BOT-BC200636  Garrya elliptica C. H. M. 1919-8-24 s.n. Contra Costa Las Trampas Peak Comment
  CDA31081  Garrya elliptica D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .217 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  CHSC22852  Garrya elliptica Robert A. Schlising; Et al 1962-2-21 2080 Contra Costa Coast Ranges. Berkeley-Oakland Hills of westernmost part of county. Comment
  JEPS77010  Garrya elliptica Robert M. Lloyd 1963-3-17 2137 Contra Costa 0.5 mi e Grizzly Peak Road intersection with Skyline Drive (on Skyline Drive, across from 7090 Skyline, Huckleberry trail) Comment
  CAS-BOT-BC200630  Garrya elliptica H. E. McMinn 810 Contra Costa Oakland Hills 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-BC169943  Garrya fremontii H. E. McMinn 170 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC169944  Garrya fremontii Lewis S. Rose 1954-6-29 54084 Contra Costa Mt. Diablo, summit 1170 Comment
  CAS-BOT-BC282608  Gastridium phleoides Mary L. Bowerman 1933-5-25 2190 Contra Costa Oyster Ridge, west end of south face, Mount Diablo Comment
  POM300684  Gastridium phleoides Mary L. Bowerman 1933-6-14 2272 Contra Costa Curry Cave Canyon: Ridge between two main forks. Mount Diablo. Comment
  UC692386  Gastridium ventricosum Mary L. Bowerman 1935-7-22 3191 Contra Costa Hidden Pond (nw 1/4 S7) Mount Diablo; , Hidden Pond Comment
  JEPS75472  Geranium dissectum P. F. Yorks 1974-4-19 132 Contra Costa ca 1.5 km s Bear Creek Road (on Hampton Road, n of Briones Reservoir); Hampton Road Natural Reserve Comment
  UC1819042  Geranium dissectum Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14236 Contra Costa South side Mount Diablo, Sheepherder Springs complex 1/2 mile north of Curry Point, wet ground in grassland. 487 Comment
  UC692707  Geranium dissectum Mary L. Bowerman 1931-4-11 708 Contra Costa Pine Canyon mouth Mount Diablo Comment
  CDA29060  Geranium molle D. G. Kelch 2006-5-7 6 .154 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  JEPS100092  Geranium molle G. Smick 2003-4-1 GAS 106 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2029180  Geranium purpureum Barbara Ertter with California Botanical Society field trip 2013-4-12 21312 Contra Costa Mount Diablo State Park southeast of Walnut Creek, along east fork Sycamore Creek, roadside of Sycamore Creek road. Comment
  UC691613  Gilia achilleifolia subsp. multicaulis Mary L. Bowerman 1935-5-30 3088 Contra Costa Eagle Point Ridge Mount Diablo, Eagle Point Ridge 320 Comment
  UC932019  Gilia capitata subsp. staminea Verne Grant, Alva Grant 1947-4-13 7925 Contra Costa sand hills by railroad tracks e Antioch; e of Antioch Comment
  RSA63718  Gilia capitata subsp. staminea Verne Grant, Alva Grant 1947-4-13 7925 Contra Costa By railroad tracks east of Antioch. Comment
  POM223334  Gilia clivorum L. S. Rose 1935-5-16 351 75 Contra Costa Mt. Diablo. Comment
  UC691677  Gilia clivorum Mary L. Bowerman 1935-4-19 2858 Contra Costa near Turtle Rock (dry hillside on opposite side of road); Mount Diablo, near Turtle Rock 457 Comment
  UCR178962  Gilia clivorum Peter L. Morrell, N. Takebayashi 1995-5-21 472 Contra Costa Central Coast, S of Clayton in Mitchell Canyon, above the banks of Mitchell Creek and beneath Eagle Peak 400 Comment
  CHSC21634  Gilia tricolor Willis Ball 1975-3-9 489 Contra Costa Contra Loma Regional Park. In area #8. Level mound ca. 450 yds s of main parking lot ca. 750 yds w of Contra Loma Blvd. 76 Comment
  SEINET3696190 Image available Gilia tricolor Lewis S. Rose 1932-3-15 3283 Contra Costa Byron. Comment
  CAS-BOT-BC266489  Githopsis diffusa Alice Eastwood 1915-5-30 s.n. Contra Costa Mount Diablo Comment
  UC635648  Githopsis specularioides H. L. Mason 1928-4-29 4429 Contra Costa Sycamore Canyon, s slopes of Mt. Diablo Mt. Diablo Comment
  JEPS43109  Glaux maritima J. B. Davy 1900-6-7 6665 Contra Costa Suisun Bay, Martinez Martinez; Suisun Bay, Martinez Comment
  UC1784219  Glycyrrhiza lepidota Ethel Crum 1930-9-29 856 Contra Costa Marsh Creek Road to Holt Comment
  CDA6000  Gnaphalium canescens subsp. beneolens D. G. Kelch, A. G. Murdock 2004-7-16 4 .318 Contra Costa Carquinez Strait Region; Martinez-South: Pine Street entrance to Route 4 heading west. Comment
  UC691802  Gnaphalium palustre Mary L. Bowerman 1935-7-22 3189 Contra Costa s side Meridian Peak (Hidden Pond); Mount Diablo 518 Comment
  JEPS19400  Grindelia hirsutula G. Thomas Robbins 1937-4-17 135 Contra Costa near Point Richmond Comment
  JEPS41884  Grindelia hirsutula W. L. Jepson 1895-9-14 Contra Costa Walnut Creek Comment
  JEPS89200  Grindelia hirsutula G. Thomas Robbins 1958-10-2 3941 Contra Costa borders of tidal slough along Southern Pacific R.R. just w Carlson Blvd. (near Stege railroad siding); Richmond Comment
  UC1118567  Grindelia hirsutula C. M. Belshaw 1936-5-15 2127 Contra Costa 2 1/2 mi nw Lone Tree Valley; Mt. Diablo Quad. Comment
  UC63192  Grindelia hirsutula H. M. Hall 1901-3-17 1659 Contra Costa Point Richmond; San Francisco Bay Region Comment
  CAS-BOT-BC305238  Grindelia hirsutula W. I. Follett; E. Follett 1981-6-22 s.n. Contra Costa North and east side of Bald Peak, San Pablo Ridge 548 Comment
  UC1292655  Guillenia flavescens A. R. Kruckeberg 1949-4-16 1735 Contra Costa 2 mi inside old North Entrance (not tollgate); Mount Diablo State Park Comment
  UC691155  Guillenia flavescens Mary L. Bowerman 1935-6-8 3122 Contra Costa 2 mi from West road (= North Rd.) entrance (w of chaparral); Mount Diablo Comment
  UC796509  Guillenia flavescens Reed C. Rollins 1946-3-25 3046 Contra Costa w slope Mount Diablo Comment
  UC1601407  Guillenia lasiophylla Katharine Brandegee 1907-5-3 Contra Costa near Antioch; Judsonville Comment
  UC205978  Guillenia lasiophylla Katharine Brandegee Contra Costa Byron Springs Comment
  UC691080  Guillenia lasiophylla Mary L. Bowerman 1935-4-22 2892 Contra Costa ridge w Pioneer Road (w of Old Stage Road); Mount Diablo 853 Comment
  JEPS120272  Hainardia cylindrica Barbara Ertter with David Gowen 2012-6-9 21025 Contra Costa junction of Seaview Trail and road into EBMUD land north of Vollmer Peak,m southeastern Tilden Park in Berkeley Hills 550 Comment
  UC50509  Hainardia cylindrica Jos. Burtt Davy 1900-6-7 6653 Contra Costa Pinole Creek Valley Comment
  UCD85227  Hainardia cylindrica Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  UC2027822  Hainardia cylindrica Barbara Ertter with Dorothy Frantz 2001-5-10 17644 Contra Costa Castle Rock Recreation Area at mouth of Pine Canyon on west side of Mount Diablo, trodden roadside. 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
  SEINET11849272  Haplopappus parishii C. W. Sharsmith 1933-1 474 A Contra Costa adjacent to San Pablo Bay, near Carquinez Straits Comment
  UC1051002  Hebe buxifolia N. Floy Bracelin 1943-7-19 2549 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  CDA5197  Hedera helix D. G. Kelch, A. G. Murdock 2005-5-23 5 .373 Contra Costa Carquinez Strait Region; Crockett - Crolona Heights. 6th Street at Lillian Street, Crockett. Comment
  UC1795793  Hedypnois rhagadioloides Barbara Ertter, Mary Bowerman 1995-6-11 14249 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, at west base Mt. Diablo.; annual grassland near Indian Valley School entrance, clay soil (planted Clarkia also present). 91 Comment
  UC1594170  Helenium bigelovii Jerry Powell 1991-6-29 1611 Contra Costa intertidal zone at river edge Antioch National Wildlife Refuge Comment
  JEPS35429  Helenium puberulum John Thomas Howell 1926-1-16 1626 Contra Costa San Leandro Canyon Oakland Hills Comment
  UC1561249  Helenium puberulum Barbara Ertter 1989-9-30 8863 Contra Costa East Bay Skyline Nat'l Recreation Trail (=Nimitz Way) just n Tilden Park border (e of El Cerrito); Wildcat Canyon Regional Park Comment
  CAS-BOT-BC305327  Helianthella castanea John Thomas Howell 1931-5-12 6475 Contra Costa Nortonville Comment
  CAS-BOT-BC305331  Helianthella castanea H. M. Hall 1916-5-31 10137 Contra Costa Mt. Diablo, north slope of summit 1158 Comment
  CDA23633  Helianthella castanea D. G. Kelch 2007-9-8 7 .57 Contra Costa Carquinez Strait; Pinole Valley Park. Comment
  JEPS21043  Helianthella castanea W. L. Jepson 1922-5-23 9654 Contra Costa Mt. Diablo; summit Comment
  JEPS85476  Helianthella castanea Leonora M. Ellis 1990-5-11 Contra Costa w Alamo (Horseman's Canyon and canyon to the w); Tice Valley 228 Comment
  JEPS86612  Helianthella castanea L. R. Heckard 1989-4-22 6727 a Contra Costa Rocky Point Mt. Diablo State Park Comment
  RSA0012947  Helianthus californicus Joseph A. Ewan 1933-10-15 8037 Contra Costa SW slope of Mount Diablo. Comment
  RSA0029054  Helianthus gracilentus Barbara Ertter 1999-6-12 16722 Contra Costa Knobcone Point Road on south side of Mount Diablo. At head of NE fork of Sycamore Creek. 488 Comment
  UC650558  Heliotropium curassavicum Ira L. Wiggins 1930-4-18 4606 Contra Costa Jersey Isl. Comment
  UC2070492  Heliotropium curassavicum Barbara Ertter 2002-11-11 18071 Contra Costa Round Valley Regional Preserve east of Mount Diablo, along Round Valley Creek/Miwok Trail. Comment
  JEPS100176  Helminthotheca echioides A. Langston 2003-8-26 AL 84 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC306265  Hemizonia congesta subsp. lutescens R. E. Frenkel 1963-8-18 260 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  CAS-BOT-BC314857  Hemizonia congesta subsp. luzulifolia R. F. Hoover 1937-9-2 s.n. Contra Costa Walnut Creek Comment
  CAS-BOT-BC314864  Hemizonia congesta subsp. luzulifolia John Thomas Howell 1930-9-28 5488 Contra Costa 2 miles from Concord on road to Walnut Creek Comment
  LA203706  Hemizonia congesta subsp. luzulifolia John Thomas Howell; 1930-9-28 5488 Contra Costa 2 mi. from Concord on road to Walnut Creek Comment
  UC1536900  Hemizonia congesta subsp. luzulifolia Gordon H. True Jr. 1937-10-12 838 Contra Costa near Pinole 30 Comment
  UC1594202  Hemizonia congesta subsp. luzulifolia Jerry Powell 1992-6-17 1649 Contra Costa Richmond Field Station Comment
  UC1613950  Hemizonia congesta subsp. luzulifolia Charles M. Belshaw 1935-6-24 1032 Contra Costa Sobrante Hills Comment
  CAS-BOT-BC309759  Hemizonia congesta subsp. luzulifolia A. A. Heller 1922-7-22 13722 Contra Costa Along San Pablo Avenue near Richmond Comment
  CAS-BOT-BC314855  Hemizonia congesta subsp. luzulifolia Mary L. Bowerman 1931-10-13 1061 Contra Costa Sycamore Valley west of Sycamore Creek, Mount Diablo Comment
  CAS-BOT-BC314871  Hemizonia congesta subsp. luzulifolia H. M. Hall 1917-5-27 10314 Contra Costa Fish Ranch, Berkeley Hills Comment
  LA203703  Hemizonia congesta subsp. luzulifolia Chas M. Belshaw; 1936-10-26 2722 Contra Costa near Walnut Creek Comment
  SEINET5782065 Image available Hemizonia fitchii L. S. Rose 1941-10-13 41464 Contra Costa 1 mi E of Walnut Creek Comment
  POM360296  Hemizonia fitchii E. E. Stanford 1930-9-20 2100 Contra Costa Near Walnut Creek Comment
  POM30955  Hemizonia kelloggii Katherine Brandegee 1907-5-5 19 Contra Costa Near Antioch. Comment
  RSA81659  Hemizonia kelloggii James I. McMurphy 1908-10-18 Contra Costa Antioch Comment
  RSA81518  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1909-9-24 s.n. Contra Costa San Ramon. Comment
  SEINET7883479 Image available Hemizonia obconica Lewis S. Rose 1938-1 38309 Contra Costa Marsh Creek, 8 mi. w. of Byron 61 Comment
  RSA720838  Herniaria hirsuta subsp. cinerea Barbara Ertter, Lisa Schultheis 1995-4-27 14013 Contra Costa Lime ridge open space NW of Mt. Diablo in Walnut Creek; extension of Valley View road. 152 Comment
  CDA18901  Hesperis matronalis V. Guise 2000-5-22 PDR 031723 Contra Costa on the east side of Tassajara Rd., Danville. 0 Comment
  CAS-BOT-BC167430  Hesperolinon breweri Volney Rattan 1886-6-1 s.n. Contra Costa Mt Diablo Comment
  JEPS22969  Hesperolinon breweri Volney Rattan Jun 1886 Contra Costa Mt. Diablo Comment
  POM86814  Hesperolinon breweri Katherine Brandegee 1907-6-16 s.n. Contra Costa Hills betweeen Antioch and Marsh Creek, on easterly side of Mt. Diablo Comment
  RSA0031306  Hesperolinon breweri Barbara Ertter 2000-5-14 17000 Contra Costa Donner Canyon on north side of Mount Diablo. 335 Comment
  RSA102173  Hesperolinon breweri M. K. C. 1885-06 s.n. Contra Costa Antioch Comment
  UC692694  Hesperolinon breweri Mary L. Bowerman 1935-6-15 3137 Contra Costa Eagle Point Ridge w 2632; Mount Diablo 762 Comment
  UC84831  Hesperolinon breweri Mrs. K. Brandegee 1907-6-16 34 Contra Costa hills between Antioch and Marsh Creek (on e side of Mt. Diablo) Comment
  CAS-BOT-BC167436  Hesperolinon breweri Volney Rattan 1886-6-1 s.n. Contra Costa Mount Diablo. Near Marsh's Ranch Comment
  JEPS122859  Hesperolinon californicum Adam C. Schneider with C. Matt Guilliams 2014-5-29 444 Contra Costa Alongside Blackhawk Ridge Trail, south of its divergence from Knobcone Pine Trail. Comment
  UC692665  Hesperolinon californicum Mary L. Bowerman 1933-6-14 2279 Contra Costa Inner Black Hills w 1970; Mount Diablo Comment
  JEPS32302  Hesperolinon micranthum W. L. Jepson May 23 1891-May 24 1891 13540 Contra Costa Mount Diablo Comment
  JEPS99502  Hesperolinon micranthum Mary L. Bowerman 1978-5-14 Contra Costa Mount Diablo. Old wagon trail to mine on E face of Eagle Peak Comment
  UC187375  Hesperomecon linearis C. F. Baker 1903-4-25 2802 Contra Costa Antioch Comment
  UC579909  Hesperomecon linearis Annetta M. Carter 1933-4-23 298 Contra Costa San Joaquin River, between Antioch Bridge and Antioch Comment
  UCD95453  Hesperomecon linearis Annetta M. Carter 1933-4-23 298 Contra Costa above the San Joaquin River, between Antioch Bridge and Antioch. Comment
  CAS-BOT-BC143643  Heteromeles arbutifolia W. W. Carruth 1900-6-1 s.n. Contra Costa E. Oakland Hills Comment
  UC2012984  Heterotheca sessiliflora subsp. echioides Barbara Ertter with Lisa Schultheis 1996-9-2 15275 Contra Costa South side of Mount Diablo, west end of Blackhawk Ridge. 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
  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
  JEPS111636  Holocarpha heermannii Andrew G. Murdock 2002-7-20 67 Contra Costa Mount Wanda - Martinez; ; ; crest of Mount Wanda on N side of fire road in large meadow 85 Comment
  UC1598596  Holocarpha heermannii John Thomas Howell 1955-8-24 30901 Contra Costa near Diablo Country Club (s base of Mt. Diablo); Mt. Diablo Comment
  CAS-BOT-BC316050  Holocarpha heermannii Lewis S. Rose 1933-10-22 33387 Contra Costa Wildcat Canyon Comment
  CAS-BOT-BC325832  Holocarpha heermannii John Thomas Howell 1930-9-28 5499 Contra Costa 6.3 miles from Byron on teh Marsh Creek Road Comment
  CAS-BOT-BC325843  Holocarpha heermannii David D. Keck 1933-10-28 2605 Contra Costa 4.5 mi. SE of Martinez on road to Pacheco Comment
  CAS-BOT-BC325844  Holocarpha heermannii David D. Keck 1933-10-28 2605 Contra Costa 4.5 mi. SE of Martinez on road to Pacheco Comment
  POM360677  Holocarpha heermannii Hattie Beuton 1917-09 3287 Contra Costa Mt. Diablo. Comment
  RSA81664  Holocarpha heermannii James I. McMurphy 1909-9-25 s.n. Contra Costa Below Alamo. Comment
  UC2012985  Holocarpha heermannii Barbara Ertter with Lisa Schultheis 1996-9-2 15276 Contra Costa South side of Mount Diablo, west end of Blackhawk Ridge. Comment
  CAS-BOT-BC320226  Holocarpha macradenia David J. Powers 1974-10-6 1001 Contra Costa 100-400 feet east of highway 80, and 100-300 yards south of Appian Way, Pinole Comment
  SD94549  Holocarpha macradenia David J. Powers 1974-10-6 1001 Contra Costa 100-400 feet east of highway 80 and 100-300 yards south of Appian Way, Pinole Comment
  UC1428043  Holocarpha macradenia David J. Powers 1974-10-6 1001 Contra Costa 100-300 ft e Hwy 80 (100-300 yd s Appian Way); Pinole Comment
  CAS-BOT-BC320220  Holocarpha macradenia Walter Knight; Irja Knight 1978-8-8 3101 Contra Costa On s.e. corner of Interstate 80 and Appian Way. [1 mi. n. of El Sobrante] Comment
  UCD133198  Holocarpha macradenia David J. Powers 1974-10-6 1001 Contra Costa east of Highway 80 and 100-300 yards south of Apian Way, Pinole. 30 Comment
  CAS-BOT-BC320246  Holocarpha obconica L. S. Rose 1941-10-16 41466 Contra Costa 6 miles west of Byron, on the Marsh Creek Road 33 Comment
  CAS-BOT-BC320252  Holocarpha obconica R. F. Hoover 1965-9-24 9649 Contra Costa Foothills west of Byron, between Kellogg and Marsh Creeks Comment
  CAS-BOT-BC320261  Holocarpha obconica John Thomas Howell 1930-9-28 5500 Contra Costa 6.3 miles from Byron on the Marsh Creek Road 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
  OBI16051  Holocarpha obconica G. Thomas Robbins 1959-9-6 4160 Contra Costa Along Camino Diablo, W of Vasco rd, 0.6 mi E of jctn with Marsh Crk rd 70 Comment
  SEINET11847624  Holocarpha obconica L. S. Rose 1938-1 38309 Contra Costa Marsh Creek, 8 mi W of Byron 61 Comment
  RSA22274  Holocarpha obconica subsp. obconica L. S. Rose 1938-10-28 38309 Contra Costa Marsh Creek, 8 miles W of Byron. 61 Comment
  CAS-BOT-BC320323  Holocarpha virgata L. S. Rose 1941-10-16 41467 Contra Costa 2 miles west of Byron 33 Comment
  CAS-BOT-BC320324  Holocarpha virgata L. S. Rose 1941-10-16 41467 Contra Costa 2 miles west of Byron 33 Comment
  CAS-BOT-BC320332  Holocarpha virgata F. R. Lawson 1930-7-18 s.n. Contra Costa 2.4 mi. west of Concord Comment
  CHSC84517  Holocarpha virgata subsp. virgata John Dittes 2003-6-28 2003 -69 Contra Costa San Joaquin Valley; foothills, ca. 13.3 air-mile north by northeast of Livermore, ca. 3.4 air-miles south by southwest of Brentwood, ca. 1.3 air-miles southeast of Marsh Creek Reservoir Gauging Station. 73 Comment
Read comments Dec 25 2008
  POM299471  Holocarpha virgata subsp. virgata L. S. Rose 1941-10-16 41467 Contra Costa 2 miles W of 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
  CHSC114266  Hordeum brachyantherum D. G. Kelch; Troy MacGregor 2009-5-10 09 .288 Contra Costa Carquinez Strait: Fernandez Ranch in valley bottom along Christie Rd. 76 Comment
  RSA0016873  Hordeum brachyantherum H. de Forest 1930-5-7 s.n. Contra Costa Road near Morage. Comment
  JEPS41058  Hordeum brachyantherum subsp. brachyantherum Rimo Bacigalupi and L. R. Heckard 1965-5-11 9087 Contra Costa sw Richmond (Brooks Island, San Francisco Bay); San Francisco Bay, Brooks Island 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
  CAS-BOT-BC281256  Hordeum brachyantherum subsp. brachyantherum R. E. Frenkel 1964-2-24 377 Contra Costa On Giant Road at its junction with Atlas Road, Richmond 16 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
  CDA32929  Hordeum marinum subsp. gussoneanum D. G. Kelch 2009-5-24 9 .301 Contra Costa Carquinez Strait; S of Ozol, W/SW of Martinez. Comment
  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
  UCD85893  Hordeum marinum subsp. gussoneanum L. S. Smith 1916-5-10 s.n. Contra Costa San Pablo. Grand View Terrace. Comment
  CAS-BOT-BC284778  Hordeum murinum subsp. glaucum Mary L. Bowerman 1933-5-17 2097 Contra Costa Mount Diablo. Branch of Curry Canyon due south of Olafsons' barn Comment
  UC50687  Hordeum murinum subsp. leporinum Jos. Burtt Davy 1900-3-24 6536 Contra Costa Point Richmond Comment
  UC692425  Hordeum murinum subsp. leporinum Mary L. Bowerman 1933-5-17 2097 Contra Costa branch of Curry Canyon due s Olafson's barn (Mount Diablo); , branch Curry Canyon Comment
  RSA123439  Hordeum murinum subsp. leporinum R. W. Lundh 1933-4-17 229 Contra Costa Bolinas Creek 152 Comment
  UC691150  Horkelia californica subsp. frondosa Mary L. Bowerman 1933-5-16 2996 Contra Costa just s the north boundary of section 25.; russelman Park 396 Comment
  CAS-BOT-BC206139  Hosackia crassifolia Rimo Bacigalupi 1926-4-30 1350 Contra Costa Summit of Mt. Diablo Comment
  UC1618342  Hypericum calycinum Barbara Ertter 1993-6-25 11907 Contra Costa 1/4 mi s of junction of Lomas Cantadas (1/4 mi s of Tilden miniature steam trains, Oakland-Berkeley Hills, Grizzly Peak Boulevard); Oakland-Berkeley Hills, Grizzly Peak Boulevard 487 Comment
  CAS-BOT-BC312936  Hypochaeris glabra Mary L. Bowerman 1930-6-18 337 Contra Costa Mount Diablo. Dan Cook (Rock City) Canyon Comment
  UC1555372  Hypochaeris radicata Jerry Powell 1988-5-18 1533 Contra Costa w Richmond; Point Molate Comment
  UC1584689  Hypochaeris radicata Jerry Powell 1987-7-14 1506 Contra Costa Point Molate Beach Comment
  CAS-BOT-BC311407  Hypochaeris radicata Goodwin; Bellue 1932-5-6 s.n. Contra Costa Unspecified Comment
  UCD138695  Iris longipetala L. S. Kimsey 1996-5-2 s.n. Contra Costa Wildcat Canyon. Comment
  UC2029193  Iris pseudacorus Barbara Ertter 2000-7-16 17381 Contra Costa Diablo Foothills Regional Park, riparian strip along Pine Creek between Castle Rock Regional Recreation Area Comment
  UC2070455  Iris pseudacorus Barbara Ertter with Dorothy Frantz 2001-5-10 17639 Contra Costa Diablo Foothill Regional Park, Pine Creek just south of Castle Rock Recreation Area. Comment
  CDA32813  Isocoma menziesii var. menziesii D. G. Kelch, D. A. Weinstein 2010-11-14 10 .446 Contra Costa Carquinez Strait; Hercules, near San Pablo Bay. 0 Comment
  CAS-BOT-BC112433  Isolepis cernua Walter Knight; I. Knight; E. McClintock; John Thomas Howell; B. Doyle; P. Rae 1978-9-5 3211 Contra Costa Browns Island, Botany Cove Comment
  CDA8051  Iva axillaris R. DeBoer 1960-1-19 Contra Costa Toll Gate House, San Rafael Bridge, Richmond. 0 Comment
  CAS-BOT-BC101879  Juglans californica J. W. Congdon 1894-10-16 s.n. Contra Costa Ft. Mt. Diablo Comment
  JEPS46453  Juglans californica W. L. Jepson 1901-10-13 Contra Costa near Lafayette Comment
  CHSC93636  Juglans californica var. hindsii Paul Kirk; Joe Callizo 2001-10-8 9 Contra Costa City of Lafayette Community Park, W side of Las Trampas Creek, 1 m E of backyard property line of home at 615 Burton Rd. 119 Comment
  IRVC14055  Juncus balticus J. Lanier 1967-5-21 s.n. Contra Costa Tice Valley Comment
  UC691985  Juncus bufonius var. bufonius Mary L. Bowerman 1931-4-11 705 Contra Costa Sulphur Spring in Pine Canyon, Mount Diablo Sulphur Spring; Mount Diablo, Pine Canyon, Sulphur Spring 137 Comment
  UC1795668  Juncus bufonius var. congestus Barbara Ertter, Mary Bowerman et al. 1995-5-7 14037 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, damp road bed, clayey, in grassy flat south of pond, near edge of blue oak forest. Comment
  UC2028966  Juncus bufonius var. congestus Barbara Ertter with Brad Olson et al. 2000-6-2 17305 Contra Costa Brushy Peak Regional Preserve NE of Livermore, at south base of Brushy Peak. Comment
  JEPS108161  Juncus capitatus David Gowen 2005-6-4 403 Contra Costa Lime Ridge Open Space. Northeast corner of the park, just west of water tank.Growing in hard-packed eroded sandy area. Comment
  CDA39196  Juncus effusus var. pacificus H. R. Van Brocklin 1962-5-21 s.n. Contra Costa H. Van Brocklin prop., 1895 Almond Ave., Walnut Creek. 0 Comment
  JEPS96252  Juncus lescurii Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10681 Contra Costa n Pittsburg (near confluence of Sacramento and San Joaquin Rivers opposite Pittsburg Marina, marsh at edge of lagoon in center of w end of island); Browns Island Comment
  UC692075  Juncus mexicanus Mary L. Bowerman 1933-4-22 1884 Contra Costa nw end Shell Ridge (s of the highway (Heather Farm)); Mount Diablo Comment
  SD107680  Juncus occidentalis Walter Knight 1980-3-13 3740 Contra Costa Top of low bluffs along southern shore of San Pablo Bay, Point Pinole Regional Park. Comment
  JEPS100048  Juncus patens A. Langston 2003-6-6 AL 38 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS99595  Juncus patens Mary Bowerman 1993-10-22 Contra Costa Mount Diablo, Pine Pond floodplain. Comment
  SEINET6174578  Juncus patens M. L. Bowerman 1932-11-26 1674 Contra Costa Patens Spring (on north side of west road between Corral Spring and Boulevard Spring) Comment
  UCD141766  Juncus patens M. Wiesendanger 1926-5-1 1465 Contra Costa near Richmond. Comment
  JEPS112448  Juncus phaeocephalus var. paniculatus A. G. Murdock 2004-5-28 276 Contra Costa Refugio Valley 120 Comment
  JEPS67063  Juncus phaeocephalus var. paniculatus W. L. Jepson 1918-6-15 7675 Contra Costa Wild Cat Creek Comment
Read comments Jul 28 2008
  JEPS111080  Juncus phaeocephalus var. paniculatus Lee Echols 2003-6-2 s.n. Contra Costa N of Lark Drive in SW portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond 15 Comment
  RSA368317  Juncus phaeocephalus var. paniculatus H. de Forest 1930-5-7 s.n. Contra Costa Road near Morage. Comment
  JEPS112449  Juncus tenuis A. G. Murdock 2004-3-19 224 Contra Costa Luzon Sycamore Ave. just east of Rodeo/Hercules where train crosses Highway 4 (Luzon). Top of ridge to south of road. 60 Comment
  UC691978  Juncus xiphioides Mary L. Bowerman 1932-11-12 1648 Contra Costa Pine Spring Mount Diablo Comment
  CAS-BOT-BC80927  Juniperus californica L. R. Abrams 1910-10-8 4989 Contra Costa near summit of Mt. Diablo Comment
  UCD133737  Juniperus californica M. Wiesendanger 1926-6-1 1531 Contra Costa Mt. Diablo. Comment
  UC1051219  Justicia carnea N. Floy Bracelin 1942-9-20 2310 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC691513  Keckiella corymbosa Mary L. Bowerman 1936-9-10 3544 Contra Costa Donner Canyon; Mount Diablo 304 Comment
  UC691611  Keckiella corymbosa Mary L. Bowerman 1930-7-20 412 Contra Costa summit Mount Diablo Comment
  JEPS100145  Kickxia elatine A. Langston 2003-7-24 AL 73 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CDA21464  Kochia scoparia C. Thayer, Erin McDermott 2006-8-23 082306 a Contra Costa Antioch, NW corner of Deer Valley Rd. and Lone Tree Way. Comment
  JEPS70570  Koeleria macrantha W. L. Jepson 1918-6-5 7601 Contra Costa Donner Canyon Mt. Diablo; vicinity of San Francisco Bay, Mt. Diablo 533 Comment
  UC692397  Koeleria macrantha Mary L. Bowerman 1935-5-8 2974 a Contra Costa knoll on spur s of Pioneer Camp Mount Diablo; , knoll s of Pioneer Camp 762 Comment
  CAS-BOT-BC273613  Koeleria pyramidata Mary L. Bowerman 1933-5-3 1983 Contra Costa Mount Diablo. Indian Ceremonial Canyon 731 Comment
  POM303721  Lactuca virosa J. T. Howell 1943-8-22 19310 Contra Costa Near head of San Leandro Creek Canyon. 244 Comment
  CAS-BOT-BC341473  Lagophylla ramosissima James I. McMurphy 1909-5-21 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC341474  Lagophylla ramosissima John Thomas Howell 1925-11-1 1550 Contra Costa Hillside near Pinehurst, San Leandro Canyon 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
  CDA22719  Lastarriaea coriacea Sue Bainbridge 2007-4-26 Byron-Airport- 5 Contra Costa Byron Airport. Comment
  JEPS103664  Lastarriaea coriacea David Gowen 2003-7-6 Contra Costa Lime Ridge Open Space, N end 182 Comment
  CAS-BOT-BC337976  Lasthenia californica Alice Eastwood 1914-3-14 3786 Contra Costa Byron Springs Comment
  UC62989  Lasthenia californica subsp. californica H. M. Hall 1901-4-5 1749 a Contra Costa Mt. Diablo Comment
  UC65033  Lasthenia californica subsp. californica H. M. Hall 1901-4-1 1767 b Contra Costa Mt. Diablo Region of San Francisco Bay (lower slopes) Comment
  UC691501  Lasthenia californica subsp. californica Mary L. Bowerman 1931-3-29 628 Contra Costa n of Cave Point ridge (near Riggs Canyon); Mount Diablo Comment
  UC1142637  Lasthenia conjugens Edw. L. Greene 1887-4-17 Contra Costa Antioch Comment
  CAS-BOT-BC324480  Lasthenia ferrisiae Alice Eastwood 1914-3-14 3761 Contra Costa Byron Springs Comment
  CDA8115  Lasthenia fremontii D. G. Kelch 1992-3-21 1826 -A Contra Costa 2.5 mi. SE of Byron; along RR tracks, N of junction of Holey Rd. and Byron Hwy. 0 Comment
  JEPS17885  Lasthenia fremontii Rimo Bacigalupi with G. T. Robbins 1956-3-26 5533 Contra Costa just s of S. P. R. R. crossing on rd. to Bethany 2.5 mi s of Byron; Head of Italian Slough 6 Comment
  CAS-BOT-BC353327  Lasthenia fremontii Niall McCarten; V. I. Dains 1986-1-1 107 Contra Costa In grassland, E of Byron Hot Springs Road. Comment
  CAS-BOT-BC353331  Lasthenia fremontii Lewis S. Rose 1956-4-16 56016 Contra Costa Dry rain pool, 2 mi. SE of Byron. 7 Comment
  RSA113973  Lasthenia fremontii Peter H. Raven, H. L. Mason, Robert Ornduff 1957-4-3 10597 Contra Costa 3.0 miles S of Byron. Comment
  RSA114067  Lasthenia fremontii H. L. Mason 1952-4-14 14260 Contra Costa 3.5 miles S of Byron Comment
  UCR197915  Lasthenia glaberrima Beecher Crampton 1950-5-10 573 Contra Costa 1 mile north of Richmond, along Santa Fe Railroad tracks 11 Comment
  CAS-BOT-BC352803  Lasthenia glabrata subsp. glabrata A. Kellogg 1877-4-1 31 Contra Costa Mount Diablo: Mitchell-Pine divide, northernmost 2750 ft. point 838 Comment
  JEPS105698  Lasthenia glabrata subsp. glabrata David Gowen 2004-4-18 33 Contra Costa Black Diamond Mines Regional Preserve. South side of the valley opposite the Nortonville townsite. Comment
  CAS-BOT-BC361123  Lasthenia microglossa Mary L. Bowerman 1932-3-27 1141 Contra Costa Mitchell Rock: Mount Diablo Comment
  CAS-BOT-BC361124  Lasthenia microglossa Mary L. Bowerman 1936-4-23 3405 Contra Costa Mount Diablo: Mitchell-Pine divide, northernmost 2750 ft. point 838 Comment
  SD241758  Lasthenia microglossa Mary Bowerman 1979-4-10 Contra Costa Mount Diablo. Mitchell Canyon opposite upper end of old reservoir. On steep bank above fire road. Comment
  UC2028062  Lasthenia microglossa Barbara Ertter, Tony Morosco 1998-4-12 16012 Contra Costa Mount Olympia on north side of Mount Diablo. Comment
  JEPS68977  Lasthenia minor Edward Lee 1935-3-29 1312 Contra Costa Donovan Rd e Kirker Pass (edges of eroded gullies); West watershed of Kirker Creek Comment
  SEINET3387255 Image available Lasthenia minor Lewis S. Rose 1933-3-29 33039 Contra Costa Nortonville. Comment
  POM361581  Lasthenia minor L. S. Rose 1933-3-29 33039 Contra Costa Nortonville. Comment
  RSA22273  Lasthenia minor L. S. Rose 1937-3-26 37007 Contra Costa Mountain House; Altamont Pass. 76 Comment
  UC1184086  Lasthenia platycarpha Ren Hwa Shan 1947-3-23 2013 a Contra Costa vernal pool 3.3 mi s Byron 7 Comment
  CAS-BOT-BC204904  Lathyrus Paul F. Covel 1936-5-17 154 Contra Costa Mt Diablo, on trail summit-north peak Comment
  CAS-BOT-BC205013  Lathyrus jepsonii var. jepsonii Walter Knight; Brian Atwater; Joanne Dean; Rolf Bensler; Bryan Mortensen 1979-4-13 3362 Contra Costa Crooked Slough, Browns Island Comment
  CAS-BOT-BC205014  Lathyrus jepsonii var. jepsonii Walter Knight; Irja Knight; John Thomas Howell; Elizabeth McClintock; Stephen P. Rae; Bob Doyle 1978-9-5 3227 Contra Costa Botany Cove, Browns Island, delta region of the San Joaquin River Comment
  JEPS107088  Lathyrus latifolius Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14671 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay, northwest corner of area. Comment
  CDA27149  Lathyrus vestitus D. G. Kelch 2007-4-29 7 .205 Contra Costa Carquinez Strait; Richmond; Chevy s Hill N. Hilltop Dr. Comment
  UC69527  Lathyrus vestitus var. vestitus Jos. Burtt Davy 1897-4-17 Contra Costa Point Isabel West Berkeley Comment
  SEINET7085230  Lavatera olbia Steven R. Hill 2010-7-19 38531 Contra Costa Residence of Kristin Yanker-Hansen, 569 Contada Circle, Danville [94526]. Coordinate Datum: WGS84/NAD83. 122 Comment
  CAS-BOT-BC323926  Layia chrysanthemoides Alice Eastwood 1914-3-14 3820 Contra Costa Byron Springs Comment
  CHSC23345  Layia chrysanthemoides Willis Ball 1975-3-22 497 Contra Costa In area #5. Field ca. 200 yds due e of main boat ramp. 36 Comment
Read comments May 24 2013
  UC1543175  Layia chrysanthemoides Donald G. Nelson 1937-3-30 475 Contra Costa Railroad tracks, paralleling the highway s Byron (on road to Tracy) 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
  CAS-BOT-BC321746  Layia gaillardioides Mary L. Bowerman 1935-4-17 2847 Contra Costa Mt. Diablo. North Road, 2 mi from North Gate, ridge west of chaparral. 335 Comment
  UC89217  Layia gaillardioides K. Brandegee May 1884 Contra Costa 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
  CAS-BOT-BC321079  Layia glandulosa Alice Eastwood 1921-4-18 10271 Contra Costa Antioch Comment
  UC144256  Layia glandulosa E. L. Greene 1903-4-27 2939 Contra Costa Antioch Comment
  UC202677  Layia glandulosa unknown 1889-4-15 Contra Costa Comment
  RSA394722  Layia glandulosa subsp. glandulosa Annetta Carter 1933-4-23 300 Contra Costa Above the San Joaquin River, between Antioch Bridge and Antioch. 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
  UC905616  Layia hieracioides David D. Keck 1941-6-5 5307 Contra Costa 1/4 mi w of e portal of Broadway Tunnel Fish Creek Rd.; Berkeley Hills Comment
  CAS-BOT-BC327698  Layia pentachaeta Brandegee no date on sheet s.n. Contra Costa Antioch Comment
  OBI48835  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
  UC691492  Layia platyglossa Mary L. Bowerman 1933-5-2 1965 Contra Costa below and a little w Pioneer Camp; Mount Diablo Comment
  CAS-BOT-BC370669  Layia platyglossa Mary L. Bowerman 1935-4-26 2918 Contra Costa Summit of Mount Diablo Comment
  CAS-BOT-BC377905  Layia platyglossa Paul F. Covel 1938-5-8 s.n. Contra Costa Mt. Diablo Comment
  POM230495  Layia platyglossa subsp. campestris Jens Clausen 1936-4-18 1174 Contra Costa Summit Mt. Diablo; trail to Devil's Pulpit. Comment
  POM361692  Layia platyglossa subsp. campestris H. de Forest 1930-4-6 s.n. Contra Costa S.E. of Mortonville. Small coal mine ravine. 244 Comment
  UC2029072  Lemna gibba Barbara Ertter 2000-7-16 17412 Contra Costa Turtle Rock Ponds on east side of Pine Creek, west side of Mount Diablo. Comment
  JEPS99486  Lemna minor Mary Bowerman 1995-6-8 Contra Costa Mount Diablo, Pine Pond. Comment
  UC2029080  Lemna minor Barbara Ertter 2000-7-16 17400 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park. Comment
  UC692109  Lemna valdiviana Mary L. Bowerman 1931-8-29 1030 Contra Costa Sheep Camp Spring, by North Road Sheep Camp Spring 533 Comment
  JEPS63258  Lepechinia calycina W. L. Jepson 1909-6-25 3121 Contra Costa Mt Diablo Comment
  JEPS78824  Lepechinia calycina Edward Lee 1936-5-24 2166 Contra Costa 10 mi from Marsh Creek Road (Morgan Territory); Morgan Territory 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
  UC691400  Lepechinia calycina Mary L. Bowerman 1938-5-28 3648 Contra Costa Mount Diablo 853 Comment
  UC691410  Lepechinia calycina Mary L. Bowerman 1938-5-28 3638 Contra Costa Mount Diablo North Road 5.4 miles from North Gate 457 Comment
  CAS-BOT-BC88706  Lepidium acutidens Lewis S. Rose 1933-3-29 33041 Contra Costa Nortonville. Comment
  OBI53981  Lepidium acutidens Barbara Ertter, Jim Jokerst and Dave Magney 1989-4-5 8127 Contra Costa SE county. Clifton Court Forebay, ca 15 air mi Sw of Stockton, T1S, R3E, sec 24 SESW 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
  POM204444  Lepidium dictyotum var. acutidens J. T. Howell 1933-3-29 10894 Contra Costa Nortonville Comment
  CAS-BOT-BC89713  Lepidium latifolium W. Knight; I. Knight 1977-5-22 s.n. Contra Costa Antioch Dunes. Comment
  JEPS100082  Lepidium latifolium A. Langston 2003-6-6 AL 34 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111853  Lepidium latifolium A. G. Murdock 2004-5-28 301 Contra Costa Luzon 60 Comment
  CAS-BOT-BC89764  Lepidium latipes Mary L. Bowerman 1933-4-15 1846 Contra Costa Mount Diablo. Canyon south of Arroyo del Cerro. Comment
  JEPS25391  Lepidium latipes Rimo Bacigalupi with G. T. Robbins and Francia Chisaki 1959-4-14 7005 Contra Costa 8 mi s Antioch (just off Deer Valley Road); Briones Valley 79 Comment
  JEPS53652  Lepidium latipes W. L. Jepson 1931-4-5 15720 Contra Costa Nortonville 396 Comment
  UC691078  Lepidium latipes Mary L. Bowerman 1933-4-15 1846 Contra Costa canyon s Arroyo del Cerro; Mount Diablo Comment
  CAS-BOT-BC89890  Lepidium nitidum Alice Eastwood 1914-3-14 3766 b Contra Costa Byron Springs. Comment
  CHSC67205  Lepidium nitidum James D. Jokerst 1991-3-28 3227 Contra Costa Kellogg Reservoir Inundation Zone at 'Upper Greasewoods,' N of Livermore. Comment
  UC2070550  Lepidium nitidum Barbara Ertter with David Gowen and Michael Park 2017-5-2 22813 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road Comment
  UC796583  Lepidium nitidum Reed C. Rollins 1946-3-25 3042 Contra Costa Mount Diablo, western slope Mount Diablo Comment
  POM204087  Lepidium nitidum L. S. Rose 1933-3-29 33045 Contra Costa Pittsburg Comment
  JEPS111855  Lepidium nitidum var. nitidum D. G. Kelch 2003-2-7 03 .37 Contra Costa Franklin Canyon 115 Comment
  JEPS111862  Lepidium nitidum var. nitidum D. G. Kelch 2004-3-12 04 .28 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road. 220 Comment
  JEPS73692  Lepidium oxycarpum L. R. Heckard with Wm. Hirano and Ted Niehaus 1968-3-5 1761 Contra Costa about 3 mi se Byron (at junction of Holey Road, along Byron-Bethany road) 7 Comment
  SEINET10735536  Lepidium oxycarpum Barbara J. Ertter, Dale Sanders; Daniel H. Norris 1994-3-26 Ertter 12337 Contra Costa Peyton Hill east of I-680 east of Martinez, south of Waterfront Road, west foot of hill near edge of marsh, openings in grassland. T2N R2W. 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
  UCD64057  Leptochloa fusca subsp. uninervia Chandler Jensen 1957-11-7 Contra Costa Vasco road, about 5 mi. south of Brentwood. Comment
  CAS-BOT-BC274013  Leptochloa fusca subsp. uninervia Beecher Crampton 1959-10-19 5467 Contra Costa Vasco Road just north of its junction with Mt. Diablo Road, 4 miles south of Brentwood Comment
  UC2027726  Leptosiphon bicolor Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15506 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  POM65854  Leptosiphon liniflorus C. F. Baker 1903-4-27 2864 Contra Costa Byron. Comment
  UCD134062  Lessingia glandulifera var. glandulifera Ann F. Johnson 1978-5-26 AN- 21 Contra Costa San Joaquin River in front of east PG and E tower, Antioch Dunes. Comment
  UC691812  Lessingia pectinata var. tenuipes Mary L. Bowerman 1936-8-25 3535 Contra Costa due w of 1004 point Lime Ridge (and n of the chaparral patch); Mount Diablo, Lime Ridge 228 Comment
  RSA0033850  Leucanthemum vulgare Barbara Ertter 1999-7-17 16761 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, Rifle Range Road. Comment
  CDA39047  Leymus X multiflorus D. G. Kelch 2011-6-5 11 .576 Contra Costa Carquinez Strait; South of Crockett, south of Cummings Skyway. Comment
  JEPS22090  Leymus X multiflorus G. Thomas Robbins 1958-7-19 3902 Contra Costa about 1/2 mi e Pt. San Pablo (meadow overlooking San Pablo Bay); Richmond Comment
  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
  CAS-BOT-BC283732  Leymus condensatus A. A. Beetle 1941-6-24 1751 Contra Costa Pt Richmond on San Francisco Bay Comment
  SEINET3840826  Leymus triticoides Unknown 2006-6-23 6 .321 Contra Costa West Valona, West of the Zampa Bridge above San Pablo avenue, along a small stream draining north into the Western end of the Carquinez Strait 91 Comment
  UCD87711  Leymus triticoides Nougart 1916-12-1 s.n. Contra Costa Walnut Creek. Comment
  CAS-BOT-BC272212  Leymus triticoides Mary L. Bowerman 1933-9-23 2447 Contra Costa Indian Ceremonial Canyon near spring, Mount Diablo Comment
  JEPS111522  Ligustrum sinense D. G. Kelch 2005-5-5 05 .207 Contra Costa Point Pinole - Giant Marsh Giant Salt Marsh 3 Comment
  UC1055944  Lilaea scilloides Francia Chisaki, Peter Kamb, and S. Galen Smith 1951-4-14 1979 Contra Costa 7 mi n Walnut Creek (e of Highway 21, 0.2 mi s of intersection with Highway 4) Comment
  UC1057450  Limnanthes douglasii subsp. nivea G. Thomas Robbins 1937-4-25 150 Contra Costa near Walnut Creek Comment
  JEPS65185  Limnanthes douglasii subsp. rosea L. R. Heckard 1971-4-15 2482 Contra Costa s Byron (at intersection of Holey Road) Comment
  OBI12577  Limnanthes douglasii subsp. rosea Robert F. Hoover 1967-4-28 10508 Contra Costa Byron Hot Springs 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
  UCD170113  Limnobium laevigatum R. Breckenridge; K. Filippini 2010-10-1 s.n. Contra Costa Sacramento/San Joaquin Delta. Bradford Island. Comment
  UCD33426  Linanthus Beecher Crampton 1968-3-27 8232 Contra Costa SE corner of County, ca. 3.5 miles south of Byron. Comment
  UC568777  Linanthus ciliatus G. L. Stebbins Jr. 1937-5-1 2111 Contra Costa 1 mi s Somersville 365 Comment
  UC125233  Linanthus pygmaeus subsp. continentalis T. S. Brandegee Apr 1889 Contra Costa Antioch Comment
  UC691638  Linanthus pygmaeus subsp. continentalis Mary L. Bowerman 1933-5-25 2178 Contra Costa w end of s-face Oyster Ridge 396 Comment
  CDA40556  Lithophragma affine V. Guise & K. Alder 2014-4-3 PDR# 070 P06223873 Contra Costa Danville; 0.5 mile north & 0.5 mile east of the end of Finley Road. 0 Comment
  UC518019  Lithophragma affine Lewis S. Rose 1933-4-17 33099 Contra Costa Walnut Creek Comment
  UC692420  Lithophragma affine Mary L. Bowerman 1933-4-15 1852 Contra Costa canyon S of Arroyo del Cerro Comment
  RSA0068477  Lithophragma affine Katie Gallagher, Nick Jensen 2014-4-26 201 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  RSA8363  Lithophragma affine subsp. affine L. S. Rose 1933-4-17 33099 Contra Costa Walnut Creek. Comment
  CHSC107534  Lithophragma heterophyllum D. G. Kelch 2006-5-4 06 .124 Contra Costa Coast Range: Vaca Canyon, on North facing road cut/bank along Alhambra Valley Road. 162 Comment
  CHSC57511  Lithophragma parviflorum var. parviflorum Willis Ball 1975-4-19 522 Contra Costa Contra Loma Regional Park, in area #2. On n facing slope ca. 100 yds nw of boat ramp on w side of lake. 36 Comment
  UC691820  Logfia filaginoides Mary L. Bowerman 1931-5-16 854 Contra Costa s side Meridian Peak summit; Mount Diablo, Meridian Peak summit Comment
  UCD38198  Logfia gallica Beecher Crampton 1950-6-20 595 Contra Costa 1 mile north of Richmond. Triangle Court. Comment
  CDA15269  Lolium multiflorum G. F. Hrusa, D. Crowe 1998-5-8 14400 Contra Costa Sacramento Delta; Moist, areas within disturbed grasslands at E end of Dow Chemical property. Rare form with branched inflorescence. Perennial? Comment
  UC769868  Lolium multiflorum R. F. Hoover 1937-5-14 2107 Contra Costa Franklin Creek valley Comment
  CDA9485  Lolium perenne D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .21 Contra Costa Byron Airport. Comment
  POM301851  Lolium perenne subsp. multiflorum Mary L. Bowerman 1938-5-25 3630 Contra Costa Arroyo del Cerro, by North Road 110 Comment
  UCD66482  Lolium temulentum Beecher Crampton 1956-5-14 3408 Contra Costa Southern boundary of Mt. Diablo State Park. Comment
  UCD66671  Lolium temulentum K. Brandegee 1916-5-9 Contra Costa Byron Springs. 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
  POM132574  Lomatium caruifolium C. F. Baker 1908-4-27 2800 Contra Costa [Unspecified] Comment
  JEPS15816  Lomatium caruifolium var. caruifolium Edw. L. Greene 1889-3-23 Contra Costa plains of the San Joaquin near Byron Comment
  JEPS111601  Lomatium dasycarpum D. G. Kelch 2000-5-22 00 .143 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Ozol Rock. 2 miles west of Martinez on Vista Drive 22 Comment
  JEPS17127  Lomatium dasycarpum subsp. dasycarpum W. L. Jepson May 23-24 1891 14299 Contra Costa Mt. Diablo Comment
  JEPS17143  Lomatium dasycarpum subsp. dasycarpum W. L. Jepson 1918-6-3 7579 Contra Costa Donner Canyon Mt. Diablo Comment
  JEPS17116  Lomatium macrocarpum M. K. Curran May 1885 Contra Costa Antioch Comment
  UC106225  Lomatium macrocarpum Katharine Curran May 1885 Contra Costa Antioch 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
  UC691781  Lomatium macrocarpum Mary L. Bowerman 1931-6-2 917 Contra Costa n. of 1924 point North Peak (Mt. Diablo); Mt. Diablo Comment
  UCSB4606  Lomatium nudicaule Keator, Glenn 1959-7-1 Contra Costa 1/4 mile above Laurel camp on Mt. Diablo Comment
  UC691422  Lomatium utriculatum Mary L. Bowerman 1935-5-30 3096 Contra Costa between the two ridges which converge at Twin Peaks (Eagle Point ridge) Mount Diablo 350 Comment
  CDA28994  Lonicera hispidula var. vacillans D. G. Kelch, Suzanne Latham, Matt Beyers 2009-6-3 9 .33 Contra Costa East Bay.; El Sobrante Ridge at end of Silver Belt Dr. on Miocene chert outcrop. Comment
  UC691752  Lonicera hispidula var. vacillans Mary L. Bowerman 1938-6-14 3681 Contra Costa Canyon Nook Mount Diablo 670 Comment
  CAS-BOT-BC241458  Lonicera involucrata var. ledebourii Ira L. Wiggins 1930-4-18 4594 Contra Costa Levee, east end of Jersey Island Comment
  JEPS22791  Lonicera involucrata var. ledebourii Ira L. Wiggins 1930-4-18 4594 Contra Costa levee at e end Jersey Island Comment
  UC1050013  Lonicera korolkowii N. Floy Bracelin 1941-8-3 2688 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS99523  Lonicera subspicata var. denudata Mary L. Bowerman 1975-6-7 Contra Costa Mount Diablo. By Big Spring fire rd. E of Murchio Gap. 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
  UC775175  Lotus denticulatus Herbert L. Mason 1945-5-31 Contra Costa nw of St. Mary's College; Cashion Canyon Comment
  UC15621  Lotus humistratus W. H. Brewer 1862-5-12 1073 Contra Costa Monte Diablo Comment
  UC692530  Lotus humistratus Mary L. Bowerman 1933-5-2 1940 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  CDA27211  Lotus humistratus G. E. Sorensen 1963-5-24 Contra Costa North Gate Road, Mt. Diablo State Park. 0 Comment
  UC555542  Lotus junceus var. biolettii H. L. Mason 1929-5-7 5262 Contra Costa Moraga Ridge Comment
  UC1606346  Lotus purshianus var. purshianus Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10702 Contra Costa n of Pittsburg (near confluence of Sacramento and San Joaquin rivers, opposite Pittsburg Marina, flat in center of w end of island); Browns Island Comment
  UC692269  Lotus purshianus var. purshianus Mary L. Bowerman 1938-6-14 3676 Contra Costa 1 mi from North Gate (North Road); Mount Diablo 121 Comment
  UC692270  Lotus scoparius Mary L. Bowerman 1932-9-24 1589 Contra Costa ridge running w from Twin Peaks; Mount Diablo 335 Comment
  UC69634  Lotus scoparius Jos. Burtt Davy 1895-1 Contra Costa Moraga Pass Comment
  JEPS18165  Lotus wrangelianus Rimo Bacigalupi with G. T. Robbins 1956-5-11 5639 Contra Costa 1.3 mi e Pinole (between State Hwy 4 (Franklin Canyon Rd) and Santa Fe Ry right-of-way, 0.25 mi e of jct with U.S. Hwy 40) 22 Comment
  JEPS55832  Lotus wrangelianus W. L. Jepson 1922-5-11 9636 Contra Costa North Berkeley Hills Comment
  UC126957  Lupinus affinis A. V. Stubenranch 1892-5-9 Contra Costa Fish Ranch Road Comment
  UC16053  Lupinus albifrons J. Burtt Davy 1895-4-7 873 Contra Costa Antioch Comment
  LA205021  Lupinus albifrons J. A. Ewan; 1934-3-10 8645 Contra Costa Wildcat Canyon, 2 mi below Orinda Rd bridge, Comment
  POM10982  Lupinus albifrons var. albifrons C. F. Baker 1903-4-25 2823 Contra Costa Antioch. 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
  UC1795855  Lupinus albifrons var. albifrons Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14594 a Contra Costa Sycamore Spring Trail off Prospectors Gap Rd., east side Mt. Diablo. 640 Comment
  CAS-BOT-BC196037  Lupinus albifrons var. collinus L. R. Abrams 1921-5-25 8024 Contra Costa Summit, Mt. Diablo Comment
  UC1129460  Lupinus albifrons var. collinus H. S. Yates 1934-9-2 4033 Contra Costa 2 mi nw Orinda; Concord Quad., nw of Orinda 304 Comment
  UC1948937  Lupinus arboreus William J. Ferlatte, L. Maynard Moe 1970-4-27 1262 Contra Costa San Francisco Bay: Red Rock Island Comment
  JEPS73600  Lupinus bicolor L. R. Heckard 1971-4-22 2496 Contra Costa along railroad grade near highway 80 crossing e Pinole; e of Pinole Comment
  UC1076228  Lupinus bicolor Herbert L. Mason 1931-4-5 5821 Contra Costa Antioch sandhills Comment
  UC692523  Lupinus formosus Mary L. Bowerman 1931-10-5 1055 Contra Costa Marsh Creek at Curry Canyon Mount Diablo; , Marsh Creek at Curry Canyon 231 Comment
  UCD107761  Lupinus formosus P. B. Kennedy 1916-5-11 12 Contra Costa Grand View Terrace; Richmond District. Comment
  JEPS112326  Lupinus formosus var. formosus Dean G. Kelch and Andrew G. Murdock 2004-9-2 04 .329B Contra Costa McEwen Road; County: Contra Costa; McEwen Road from Port of Costa - I-4 near summit of Road. Contra Costa County CA. Comment
  UC1618312  Lupinus latifolius var. latifolius Barbara Ertter with Laura Fujii 1990-7-21 9402 Contra Costa W of Pleasant Hill (Homestead Valley trail, at Bear Creek crossing; Briones Hills); Briones Regional Park 274 Comment
  UCD38731  Lupinus luteolus Beecher Crampton 1957-7-9 4274 Contra Costa 3 miles southeast of Crockett. On the road to Martinez. Comment
  CDA27486  Lupinus microcarpus var. densiflorus A. G. Murdock, D. G. Kelch 2003-6-2 88 Contra Costa Carquinez Strait Region; Crockett - Eckley. East of pier at base of cliff. Comment
  UC163954  Lupinus microcarpus var. densiflorus Miss H. A. Walker 1911-7-8 2526 Contra Costa near Point Isabel (e shore of San Francisco Bay); , near Point Isabel Comment
  UC692275  Lupinus microcarpus var. densiflorus Mary L. Bowerman 1931-4-18 735 Contra Costa Green Valley Mount Diablo (Mount Diablo); , Green Valley Comment
  OBI60545  Lupinus microcarpus var. densiflorus Donald G. Nelson 1937-4-24 516 Contra Costa On Marsh Crk Rd, in rolling hill country N of Byron Comment
  CDA27537  Lupinus microcarpus var. microcarpus D. G. Kelch, A. G. Murdock 2005-5-6 5 .224 Contra Costa Franklin Canyon. East of Christie Road. South of Route 4. Comment
  JEPS65467  Lupinus microcarpus var. microcarpus W. L. Jepson 1921-5-22 9214 Contra Costa Mt. Diablo; Mt. Diablo, s slope 609 Comment
  UC15961  Lupinus microcarpus var. microcarpus J. Burtt Davy April 1895 Contra Costa Antioch Comment
  UC33552  Lupinus microcarpus var. microcarpus Chesnut and Drew 1889-4-17 Contra Costa Clayton Comment
  RSA0027702  Lupinus microcarpus var. microcarpus Barbara Ertter, John Ginochio, Mary Bowerman 2001-5-8 17628 Contra Costa Northwest flank of Mount Diablo, upper Galindo Creek southwest of Mount Zion. Comment
  SD103751  Lupinus microcarpus var. microcarpus Walter Knight, Irja Knight 1979-5-6 3395 Contra Costa Orinda, Camino del Diablo Comment
  UC1795805  Lupinus microcarpus var. microcarpus Barbara Ertter, Lisa Schultheis 1995-4-27 14011 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
  UC126998  Lupinus nanus J. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  UC1301168  Lupinus nanus Helen K. Sharsmith 1962-4-18 4960 Contra Costa near Canyon; San Francisco Bay Region 152 Comment
  UCD109076  Lupinus nanus P. B. Kennedy Date Unknown 1311 Contra Costa Grand View Terrace - Richmond District. Comment
  UCSB10857  Lupinus nanus Judy Hayes 1961-3-29 48 Contra Costa collected 2.0 mi N, along Cliffhill Road Danville - Danville and Cliffhill Road Comment
  JEPS107018  Lupinus pachylobus J. Greenhouse with Kevin Hintsa 2004-4-5 5089 Contra Costa Mt. Diablo, Fire Interpretive Trail 1112 Comment
  UC2027717  Lupinus pachylobus Barbara Ertter with Stu Garrett 1997-3-29 15522 a Contra Costa West side Mount Diablo, Burma Road above North Gate Road. Comment
  UC1300901  Lupinus succulentus Helen K. Sharsmith 1962-4-7 4916 Contra Costa Appian Way near El Sobrante (San Francisco Bay Region); San Francisco Bay region, Appian Way nr El Sobrante 121 Comment
  UCD32374  Lupinus succulentus Beecher Crampton 1950-4-12 510 Contra Costa 1 mile south of Richmond, intersection of Cutting Blvd. and Carlson Blvd., singular path along S.P. railroad right of way. 22 Comment
  CDA39247  Luzula comosa D. G. Kelch 2003-3-21 3 .051 Contra Costa Carquinez Strait Region; Martinez; West: Ozol Rock and Scenic Drive. Comment
  POM290430  Luzula comosa Lyman Benson 1931-3-18 2659 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  UC691937  Luzula comosa Mary L. Bowerman 1933-5-8 2021 Contra Costa Mount Diablo , Rock City Ridge, = Fossil Ridge (half way down to canyon bottom Rock City Ridge, = Fossil Ridge) Comment
  RSA0014832  Lythrum californicum Mary L. Bowerman 1933-8-26 2416 Contra Costa Mount Diablo: Spring at top of south road. Comment
  JEPS45984  Lythrum hyssopifolia W. L. Jepson 1940-6-5 19933 Contra Costa Richmond Comment
  UC2028361  Lythrum hyssopifolia Barbara Ertter with Tony Morosco 1998-7-11 16364 Contra Costa North base of Mount Diablo, margin of small pond on north side of Bruce Lee Road east of Mitchell Canyon staging area Comment
  UC692635  Lythrum hyssopifolia Mary L. Bowerman 1932-11-19 1662 Contra Costa Mount Diablo, Stachys Spring, Mountain Springs Canyon, (below junction of pipes from numbers 3 and 4 club springs) Mountain Springs Canyon; Mount Diablo, Stachys Spring, Mountain Springs Canyon Comment
  UC1051167  Mackaya bella N. Floy Bracelin 1944-7-19 2762 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS111711  Madia exigua D. G. Kelch 2004-5-9 04 .205 Contra Costa Crockett - Edwards Canyon; Upper Edwards Canyon 160 Comment
  CAS-BOT-BC344325  Madia exigua Joseph Andorfer Ewan 1936-5-24 9693 Contra Costa West slope Bald Peak Comment
  CAS-BOT-BC344327  Madia exigua John Thomas Howell 1931-5-12 6473 Contra Costa Nortonville Comment
  JEPS40425  Madia gracilis W. L. Jepson 1896-5-31 Contra Costa near Berkeley (trip to Wildcat Creek) Comment
  POM267781  Madia gracilis subsp. gracilis D. D. Keck 1941-6-5 5309 Contra Costa Berkeley Hills, Fish Creek Road 1/4 mile W of E portal of Broadway Tunnel. 335 Comment
  CAS-BOT-BC324490  Madia radiata Brandegee 1889-4-1 s.n. Contra Costa Antioch Comment
  SD8607  Madia radiata Brandegee Apr 1889 Contra Costa Antioch Comment
Read comments Jan 9 2007
  UC830900  Madia radiata A. A. Heller 1938-4-9 15015 Contra Costa 3 mi sw Antioch Comment
Read comments Aug 21 2017
  CDA23595  Madia sativa D. G. Kelch 2007-9-8 7 .568 Contra Costa Carquinez Strait; Pinole Valley Park. Comment
  JEPS41051  Madia sativa Rimo Bacigalupi, and L. R. Heckard 1965-5-11 9076 Contra Costa sw of Richmond (on the w side of Brooks Island, in San Francisco Bay); San Francisco Bay, Brooks Island 6 Comment
  CAS-BOT-BC343585  Madia sativa R. E. Frenkel 1963-8-18 265 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  UCD134341  Madia sativa G. Thomas Robbins; S. Galen Smith 1958-6-2 3848 B Contra Costa Along Franklin Canyon Road (State Highway 4) south and above Refugio Valley just east of Hercules city boundary. 18 Comment
  RSA69276  Maianthemum racemosum subsp. amplexicaule Frank W. Peirson, Mabel B. Peirson 1925-4-10 6636 Contra Costa Boulevard near San Pablo Reservoir Comment
  UC2028129  Malacothamnus fasciculatus Barbara Ertter 1998-5-3 16079 a Contra Costa Wall Point Road and Emmons Canyon Road, southwest flank of Mount Diablo. Comment
  CAS-BOT-BC206328  Malacothamnus fremontii Joanne Taylor 1941-7-18 20 Contra Costa By hills of Nortonville. 243 Comment
  JEPS26391  Malacothamnus fremontii Kittie L. Fenley 1931-5-3 Contra Costa Nortonville Comment
  UC1280806  Malacothamnus hallii H. E. McMinn and E. Maino 1931-4-11 123 Contra Costa Mount Diablo Comment
  UC198957 Image available Malacothamnus hallii H. M. Hall and F. M. Essig 1916-5-30 10131 Contra Costa Mt. Diablo 274 Comment
  UC311568 Image available Malacothamnus hallii H. M. Hall and F. M. Essig 1916-5-30 10131 Contra Costa w side n Pine Canyon; Mt. Diablo; Mt. Diablo, Contra Costa Co. Comment
  UC692621  Malacothamnus hallii Mary L. Bowerman 1938-11-12 3732 Contra Costa Mount Diablo 289 Comment
  UCD116361  Malacothamnus hallii Don C. Elfving 1964-4-26 62 Contra Costa North Gate Road, 3 miles from base of Mt. Diablo. Comment
  CAS-BOT-BC347389  Malacothrix floccifera R. Bacigalupi 1927-5-13 1573 Contra Costa Summit Mt. Diablo Comment
  CAS-BOT-BC347391  Malacothrix floccifera Alice Eastwood 1921-6-11 10601 Contra Costa Mt. Diablo Comment
  UC691447  Malacothrix floccifera Mary L. Bowerman 1933-4-25 1908 Contra Costa ridge ese North Peak; Mount Diablo Comment
  UC1618290  Malus sylvestris Barbara Ertter, Lynne Hosley 1993-4-17 11506 Contra Costa 10 air mi n of Livermore (Morgan Territory, hills in lee of Mount Diablo, along Volvon Trail at se edge of park) 609 Comment
Read comments Aug 15 2016
  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
  CHSC21640  Marah fabacea Willis Ball 1975-3-2 466 Contra Costa In area #4. On hill top ca. 50 yds e of large willow trees at ne end of lake. Contra Loma Regional Park. 53 Comment
  CHSC46936  Marah fabacea R. A. Schlising 1963-6-11 2623 Contra Costa Above the city of Berkeley, along Grizzly Peak Blvd in Oakland Hills. Comment
  JEPS111874  Marah fabacea D. G. Kelch 2003-3-21 03 .40 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  JEPS81140  Marah fabacea Edward Lee with Annetta Carter 1936-2-9 1747 Contra Costa 5.6 mi from Perkins Canyon road (Marsh Creek Road) Comment
  UCSB9128  Marah fabacea Kamb, Peter; Chisaki, Francia 1950-3-18 Contra Costa Black Hills, S of Mt. Diablo, on south road to Mt. Diablo from Danville 365 Comment
  CDA37959  Marah oregana Andrew Murdock, D. G. Kelch 2005-3-21 391 Contra Costa Carquinez Strait Region; South of Cumming s Skyway & about 1 km east of I-80. Comment
  CHSC28455  Marah oregana Robert A. Schlising 1964-6-6 2718 Contra Costa Berkeley-Oakland Hills. Comment
  CHSC46933  Marah oregana Robert A. Schlising 1964-4-2 2671 Contra Costa Berkeley Hills, above city of Oakland. Comment
  JEPS37068  Matricaria discoidea W. L. Jepson 1922-5-18 9647 Contra Costa Berkeley Comment
  CAS-BOT-BC348050  Matricaria discoidea Katharine Brandegee No date on label s.n. Contra Costa Byron Spring Comment
  CAS-BOT-BC348258  Matricaria occidentalis R. E. Frenkel 1963-5-15 202 Contra Costa East of Bixler Road between Marsh Creek Road and Point of Timber Road, about 200 yards north of pink house on west side of road, about 10-20 m. east of fence Comment
  RSA215988  Matricaria occidentalis R. E. Frenkel 1963-5-15 197 Contra Costa Grazed field east of Bixler Road between Marsh Creek Road and California Highway 4 in Byron Tract Comment
  UC2036958 Image available Meconella californica Mary L. Bowerman 1946-3-10 4084 Contra Costa Northerly face of Shell Ridge. East of Brown's house (where [m.c.?] lived). Comment
  HSC24000  Medicago sativa Tim Baroni 1971-10-16 199 Contra Costa Pinole, Pinole Valley Rd. 100 Yds. E of the entrance to Wright Ave. Comment
  POM300624  Melica californica Mary L. Bowerman 1935-5-25 3070 Contra Costa Meridian Peak south of the summit (east of the hairpin turn on road). Mount Diablo. 1067 Comment
  POM300625  Melica californica Mary L. Bowerman 1935-5-1 2941 Contra Costa North road 4.4 miles from North Gate. Mount Diablo. 396 Comment
  UC691173  Melica californica Mary L. Bowerman 1933-6-3 2236 Contra Costa Ransom Point trail Mount Diablo (Mount Diablo) Comment
  UCD87005  Melica californica R. E. Cuendett 1915-4-18 s.n. Contra Costa Foot of Mt. Diablo. Comment
  CAS-BOT-BC281434  Melica imperfecta Virginia E. Long 1933-6-14 221 a Contra Costa Mt Diablo. On slope SE-E along first W fork from Curry Creek trail 335 Comment
  UC692463  Melica imperfecta Mary L. Bowerman 1935-5-3 2956 Contra Costa hillside below Jungle of the Garden Gods (Fossil Ridge (Rock City Ridge)); Mount Diablo, Fossil Ridge (Rock City Ridge) 457 Comment
  UC692464  Melica imperfecta Mary L. Bowerman 1931-4-18 714 Contra Costa Sycamore Canyon; Mount Diablo 335 Comment
  UCD38556  Melica imperfecta Beecher Crampton 1956-5-14 3405 Contra Costa Southern boundary of Mt. Diablo State Park. Comment
  JEPS97557  Melica torreyana R. D. Stone 1980-7-13 270 Contra Costa Huckleberry TrailNE of intersection of Skyline Blvd. and Snake Rd. Oakland Hills, near Alameda-Contra Costa county line 396 Comment
  RSA295077  Melica torreyana Robert A. Norris, John L. Inase 1981-4-25 4143 Contra Costa Alongside Abrigo Valley trail, west part of Briones Regional Park (ca. 3 miles NNW Lafayette). 220 Comment
  UC1948967  Melica torreyana William J. Ferlatte, L. Maynard Moe 1970-4-27 1249 Contra Costa San Francisco Bay: Red Rock Island Comment
  JEPS112482  Mentha X piperita D. G. Kelch 2004-5-7 04 .193 Contra Costa Ca ada del Cierbo 40 Comment
  SEINET3152170  Mentha canadensis Brandegee 1892-9-9 sn Contra Costa Antioch Comment
  JEPS99537  Mentzelia micrantha Mary L. Bowerman 1978-5-26 Contra Costa Mount Diablo, N of lower summit parking lot. Comment
  UC692630  Mentzelia micrantha Mary L. Bowerman 1930-6-10 306 Contra Costa Mount Diablo, Meridian Peak summit Comment
  UC697192  Mentzelia micrantha Mary L. Bowerman 1933-5-2 Contra Costa Below Pioneer Camp (and slightly east); Mount Diablo 762 Comment
  CDA33748  Mercurialis ambigua D. G. Kelch 2011-2-5 11 .018 Contra Costa Crockett below Zampa Bridge. 0 Comment
  CDA387  Mesembryanthemum nodiflorum D. G. Kelch, Michael Park 2008-9-1 8 .291 Contra Costa Carquinez Strait; 200 m W of Pacheco Slough, E of Martinez. Comment
  HSC101958  Micranthes californica Nikolaus Gillen, Michelle Bihler 2014-3-20 10 Contra Costa Mount Diablo State Park. Eagle Peak Trail. 649 Comment
  UCD16073  Microlepia strigosa Glen Holstein 1988-2-12 s. n. Contra Costa California. Contra Costa County: City of Danville. Comment
  UC1795021  Micropus californicus R. K. Brummitt and B. Ertter 1998-5-6 19782 Contra Costa Mt. Diablo, NW side, path to Mitchell's Rock 300 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
  CAS-BOT-BC348892  Microseris douglasii subsp. douglasii Alice Eastwood 1915-5-30 4451 Contra Costa Mt. Diablo Comment
  JEPS36210  Microseris douglasii subsp. douglasii W. L. Jepson 1923-4-22 9880 Contra Costa Mount Diablo 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
  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
  CAS-BOT-BC349093  Microseris douglasii subsp. tenella Mary L. Bowerman 1933-4-15 1847 Contra Costa Mount Diablo. Canyon south of Arroyo del Cerro Comment
  CAS-BOT-BC349170  Microseris elegans Brandegee No date on label s.n. Contra Costa Byron Hot Springs Comment
  POM53410  Microseris elegans C. F. Baker 1903-4-28 2830 Contra Costa Marsh Creek, Mt. Diablo. Comment
  SBBG6024  Microsteris gracilis J. M. Tucker 1946-3-24 1385 Contra Costa hills between Nortonville and Somersville Comment
  JEPS10223  Mimulus aurantiacus var. aurantiacus W. L. Jepson 1922-5-23 9650 Contra Costa Mt. Diablo Comment
  UC691614  Mimulus aurantiacus var. aurantiacus Mary L. Bowerman 1931-3-29 622 Contra Costa East Cave Point Ridge Mount Diablo Comment
  UC76079  Mimulus aurantiacus var. aurantiacus Miss Carlotta Case July, 1904 Contra Costa Muir Station Comment
  HSC90665  Mimulus aurantiacus var. aurantiacus D. M. Thompson 1992-6-3 1107 Contra Costa SW base of Mt. Diablo, E of Danville. 2.6 mi. NE of Blackhawk and Diablo Rds. along Mt. Diablo Scenic Blvd. and South Gate Rd. 378 Comment
  RSA550837  Mimulus aurantiacus var. aurantiacus David M. Thompson 1992-6-3 1107 Contra Costa SW base of Mt. Diablo, E of Danville. 2.6 mi NE of Blackhawk and diablo rads along Mt. Diablo Scenic Boulvard and South Gate Road 378 Comment
  UC691503  Mimulus grandis Mary L. Bowerman 1935-4-22 2880 Contra Costa 2 mi from West road (= North Rd.) entrance; Mount Diablo Comment
  UC691504  Mimulus grandis Mary L. Bowerman 1933-5-2 1964 Contra Costa below and w Pioneer Camp; Mount Diablo Comment
  UC103731  Mimulus latidens T. S. Brandegee May 1889 Contra Costa Antioch Comment
  UC125132  Mimulus latidens Katharine Brandegee 1907-5-5 Contra Costa between Antioch and Marsh Creek Comment
  JEPS116944  Mimulus latidens David Gowen 2008-4-16 862 Contra Costa Just south of parking area for Black Diamond Mines Regional Preserve on Frederickson Road. Comment
  CHSC22998  Minuartia douglasii Robert A. Schlising 1962-4-26 2187 Contra Costa Coast Ranges. Mount Diablo, at Juniper Campground. Comment
  UC8130  Minuartia douglasii W. H. Brewer 1862-5-5 1048 Contra Costa near Walnut Creek (sw of Camp 69) Comment
  RSA721746  Minuartia douglasii Barbara Ertter, Mary L. Bowerman 1995-5-7 14059 Contra Costa Three-Springs Trail on NE side of Mt. Diablo SE of Clayton. Comment
  UC1607684  Minuartia pusilla Barbara Ertter, Lynne Hosley 1993-4-17 11512 Contra Costa ca 10 air mi n Livermore (hills in lee of Mt. Diablo, edge of outcrop s of Hummingbird trail); Morgan Territory 609 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
  CAS-BOT-BC220510  Monardella villosa Alice Eastwood 1915-6-21 4743 Contra Costa San Leandro Comment
  UC691415  Monardella villosa subsp. villosa Mary L. Bowerman 1930-6-18 339 Contra Costa Dan Cook canyon Mount Diablo Comment
  CAS-BOT-BC327805  Monolopia gracilens Lewis S. Rose 1935-5-16 35166 Contra Costa Mt. Diablo Comment
  POM223335  Monolopia lanceolata 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-BC349617  Monolopia major James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  CHSC23335  Monolopia major Willis Ball 1975-3-2 474 Contra Costa Contra Loma Regional Park. In area #2. On s side of hill ca. 50 yds ne of single restroom at sw end of lake. Approximately half way up the hill. 53 Comment
  CAS-BOT-BC349615  Monolopia major Dr. A. Kellogg; W. G. W. Harford 1969-4-8 508 Contra Costa Antioch Comment
  POM55549  Monolopia major C. F. Baker 1903-4-27 s.n. Contra Costa Byron. 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
  UC1607685  Montia fontana Barbara Ertter, Lynne Hosley 1993-4-17 11511 Contra Costa Morgan Territory 10 air mi n of Livermore (in lee of Mount Diablo, s of Hummingbird trail,); Morgan Territory 609 Comment
  UC1198226  Muilla maritima J. P. Tracy 1900-3-24 607 Contra Costa near Point Richmond; Region about San Francisco Bay 3 Comment
  SEINET5624176 Image available Myosotis sylvatica Betsey Northman 1961-1 36 Contra Costa Berkeley Hills, U.C. property; Dirt road leading N. toward Strawberry Canyon area 91 Comment
  CAS-BOT-BC83291  Myosurus minimus Herbert L. Mason 1952-4-26 14268 Contra Costa 3.5 miles south of Byron. Comment
  CHSC68026  Myosurus minimus James D. Jokerst 1989-3-28 3058 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  UCD170623  Myriophyllum spicatum 1996-10-1 s.n. Contra Costa Martinez, Contra Costa Landscaping. 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
  UC1950413  Najas guadalupensis Barbara Ertter with Brad Olson 1991-9-28 10838 Contra Costa San Pablo Reservoir between Orinda and El Sobrante, at S end of reservoir Comment
  CDA28809  Nassella cernua D. G. Kelch, Jessica Kolman 2009-5-3 9 .315 Contra Costa Carquinez Strait; Crockett; on hill south of 5th St. with transmission tower on sandstone outcrop. Comment
  UC691272  Nassella lepida Mary L. Bowerman 1935-5-8 2976 Contra Costa spur below Pioneer Camp; Mount Diablo 731 Comment
  CAS-BOT-BC259901  Nassella lepida Mary L. Bowerman 1935-6-8 3125 Contra Costa Mount Diablo. West road 2 miles from entrance, gully W of chapparal Comment
  SEINET191122  Nassella pulchra A. A. Beetle 1941-3-28 1718 Contra Costa Near Orinda. Comment
  UC692412  Nassella pulchra M. L. Bowerman 1935-4-26 2902 Contra Costa Indian Ceremonial Spring, W of Mount Diablo 1021 Comment
  POM300685  Nassella pulchra Mary L. Bowerman 1933-5-9 2036 Contra Costa East of Pioneer Camp Comment
  UC30207  Navarretia cotulifolia W. H. Brewer 1862-5-19 1110 Contra Costa n of Kirker's Pass Comment
  UC856837  Navarretia mellita John Thomas Howell 1938-6-30 13938 Contra Costa Head of Siesta Valley Comment
  SEINET12271290  Navarretia mellita J. T. Howell 1938-1 13938 Contra Costa head of Siesta Valley Comment
  SEINET183957  Navarretia mellita John Thomas Howell 1938-6-30 13938 Contra Costa Head od Seista Valley. Comment
  JEPS116946  Navarretia nigelliformis subsp. radians David Gowen 2008-4-16 860 Contra Costa West end of Horse Valley. Banks of drainage south of #857. Comment
  UC125036  Navarretia nigelliformis subsp. radians Katharine Brandegee 1907-6-16 Contra Costa near Antioch; Judsonville Comment
  UC23802  Navarretia pubescens W. H. Brewer 1862-5-19 1113 Contra Costa n of Kirkers Pass Comment
  CAS-BOT-BC233584  Navarretia pubescens John Thomas Howell 1942-7-19 17041 Contra Costa Near Deer Flat, Mount Diablo Comment
  UCD36039  Navarretia pubescens Beecher Crampton 1949-9-11 493 Contra Costa Contra Costa County, Mount Diablo State Park, below main road, opposite Oak Knoll Picnic area. 518 Comment
  JEPS112005  Navarretia squarrosa D. G. Kelch 2005-5-1 05 .191 Contra Costa Crockett - Edwards Canyon 150 Comment
  JEPS111832  Nemophila heterophylla A. G. Murdock 2004-3-5 210 Contra Costa Sky Ranch Along fire road bank 160 Comment
  JEPS3210  Nemophila heterophylla L. Constance, J. L. Morrison 1938-5-5 2190 Contra Costa above Deer Flat (near head of Mitchell Canyon, nw slope of Mount Diablo); nw slope Mount Diablo, nr head Mitchell Canyon 670 Comment
  SBBG29926  Nemophila heterophylla J. T. Howell 1933-5-14 12218 Contra Costa E of St. Mary's College Comment
  UC1301148  Nemophila heterophylla Helen K. Sharsmith 1963-3-3 5188 Contra Costa e St. Mary's College (near Moraga, Las Trampas Canyon); San Francisco Bay Region, Las Trampas Cyn, nr Moraga 259 Comment
  UC606926  Nemophila heterophylla L. Constance, J. L. Morrison 1938-5-5 2190 Contra Costa above Deer Flat (near head of Mitchell Canyon, nw slope of Mount Diablo); nw slope Mount Diablo, nr head Mitchell Canyon 670 Comment
  UC67126  Nemophila heterophylla Harley P. Chandler 1901-4-5 985 Contra Costa summit Mt. Diablo Comment
  UC880873  Nemophila heterophylla Lewis S. Rose 1941-5-15 41238 Contra Costa summit Mt. Diablo 1188 Comment
  UC1818976  Nemophila heterophylla Barbara Ertter 1996-3-30 14561 Contra Costa Albany Hill, northwest corner above ball courts, edge of steep informal path, partial shade of eucalyptus. Comment
  UC67123  Nemophila heterophylla Harley P. Chandler 1900-3-23 567 Contra Costa Fish Ranch Road Region of San Francisco Bay, Berkeley Hills (Berkeley Hills) Comment
  JEPS100012  Nemophila maculata G. Smick 2003-5-5 GAS 172 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC233455  Nicotiana glauca Ira L. Wiggins 1930-4-18 4604 Contra Costa East end of Jersey Island Comment
  UC691506  Nicotiana quadrivalvis Mary L. Bowerman 1936-6-20 3416 Contra Costa ridge w Mount Zion (w side of ridge, road bending up canyon to south); Mount Diablo 213 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
  JEPS112074  Oemleria cerasiformis D. G. Kelch 2003-2-7 03 .35 Contra Costa Sky Ranch. Dutra Road path ~700-1000 ft. 250 Comment
  JEPS77015  Oemleria cerasiformis Robert M. Lloyd 1963-3-17 2142 Contra Costa 0.5 mi e Grizzly Peak Road intersection with Skyline Drive (on Skyline Drive (across from 7090 Skyline Drive), Huckleberry trail) Comment
  RSA128906  Oemleria cerasiformis Peter H. Raven 1950-3-5 1409 Contra Costa Happy Valley Road, 2.8 miles above intersection with Upper Happy Valley road. 244 Comment
  UC691107  Oemleria cerasiformis Mary L. Bowerman 1933-5-17 2114 Contra Costa Mount Diablo; branch of Curry due s of Olafsons barn, crest of ridge between two forks, epecially on e side Comment
  UC764022  Oemleria cerasiformis R. F. Hoover 1938-3-8 2823 Contra Costa e slope Grizzly Peak ridge; Grizzly Peak Comment
  CDA8361  Oenanthe sarmentosa D. G. Kelch 2004-4-3 4 .16 Contra Costa Carquinez Strait; Along Alhambra Valley Rd on moist creek bed. Comment
  JEPS96237  Oenothera curtiflora Barbara Ertter 1991-9-22 10827 Contra Costa sw El Cerrito (Point Isabel Regional Shoreline); Point Isabel Regional Shoreline Comment
  RSA0027719  Oenothera deltoides subsp. cognata Barbara Ertter, Chris Thayer 1994-5-19 12782 Contra Costa Highway 4 between Brentwood and Oakley at Honey Lane, halfway between Cypress Rd and Delta Rd. Comment
  RSA119427  Oenothera deltoides subsp. howellii William M. Klein 1958-6-9 432 Contra Costa Sandhills N of Antoch, along the San Joaquin River Channel. 2 Comment
  UC1241161  Oenothera deltoides subsp. howellii Wm. Klein 1958-6-9 442 Contra Costa sandhills just n Antioch (along the channel) Comment
  UC914280  Oenothera deltoides subsp. howellii Verne Grant and Alva Grant 1947-4-13 7926 Contra Costa sand hills by river e Antioch Comment
  RSA119436  Oenothera deltoides subsp. howellii William M. Klein 1958-6-9 433 Contra Costa Sandhills N of Antoch, along the San Joaquin River Channel. 2 Comment
  UC1125588  Orobanche fasciculata C. M. Belshaw 1936-5-8 2055 Contra Costa SE Slope of Mount Diablo. Comment
  UC27879  Orobanche fasciculata State Survey 1124 Contra Costa Mt. Diablo. Comment
  UC35324  Orobanche fasciculata F. T. Bioletti 1894-5-13 Contra Costa Mount Diablo. Comment
  UC691742  Orobanche fasciculata Mary L. Bowerman 1931-5-23 900 Contra Costa Mount Diablo. Oyster Point. Comment
  CAS-BOT-BC499851  Orobanche fasciculata Alice Eastwood 1915-5-30 4536 Contra Costa Mt. Diablo 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
  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
  CAS-BOT-BC238373  Orthocarpus James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  SEINET10549673  Orthocarpus erianthus John T. Middleton 1936-4-24 Middleton 95 D Contra Costa Deer valley. Comment
  SEINET12270163  Orthocarpus erianthus L. S. Rose 1932-1 32115 Contra Costa Nortonville Comment
  POM15657  Orthocarpus purpurascens C. F. Baker 1903-4-27 2794 Contra Costa Byron. Comment
  SEINET10549722  Orthocarpus purpurascens John T. Middleton 1936-4-10 Middleton 134 D Contra Costa Deer valley. Comment
  UC1094580  Osmorhiza berteroi C. R. Bell 1953-3-27 1407 Contra Costa Berkeley, U.C. campus Comment
  RSA0068495  Osmorhiza berteroi Katie Gallagher, Nick Jensen 2014-4-26 179 Contra Costa Las Trampas Regional Wilderness. 365 Comment
  CDA28455  Oxalis carnosa G. D. Barbe 1976-3-25 2117 Contra Costa International Succulent Institute, 10 Corte Sombrita, between Moraga and Orinda. 0 Comment
  RSA0029056  Panicum capillare Barbara Ertter, Mary L. Bowerman, Lisa Schultheis 1998-8-21 16396 Contra Costa South side of Mount Diablo, South Gate Road 1.1 mi below entry kiosk. 366 Comment
  UC2029172  Panicum dichotomiflorum Barbara Ertter 2000-7-16 17415 Contra Costa Diablo Foothills Regional Park, west end of Northgate Trail behind stables along Little Pine Creek, waste area. Comment
  CHSC84547  Parapholis incurva John Dittes 2003-5-6 2003 -15 Contra Costa San Joaquin Valley; approximately 10.0 air-miles north of Livermore, 0.4 air-miles north of Vasco Road; Los Vaqueros Reservoir Watershed. 65 Comment
  JEPS41043  Parapholis incurva L. R. Heckard and R. Bacigalupi 1965-5-11 9068 Contra Costa at bay on n end Brooks Island (sw of Richmond in San Francisco Bay); San Francisco Bay, n end of Brooks Island Comment
  UC1795772  Parapholis incurva Barbara Ertter, Brad Olson 1994-5-7 12764 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  UC2028963  Parapholis incurva Barbara Ertter with Brad Olson et al. 2000-6-2 17306 Contra Costa Brushy Peak Regional Preserve NE of Livermore, at south base of Brushy Peak. Comment
  CDA22267  Parietaria judaica D. G. Kelch, A. G. Murdock 2005-5-23 5 .372 Contra Costa Carquinez Strait Region; Crockett - Crolona Heights. 6th Street at Lillian Street, Crockett. Comment
  JEPS111919  Parietaria judaica Dean G. Kelch and Andrew G. Murdock 2004-4-11 DGK 04 .078 Contra Costa Crockett - Crolona Heights. 6th Street at Lillian Street. Comment
  CAS-BOT-BC259646  Paspalum dilatatum John Thomas Howell; Gordon H. True 1972-6-29 48940 Contra Costa Along Byron Hot Springs Road where water has stood, SE of Byron Comment
  RSA0026146  Paspalum dilatatum Barbara Ertter 1998-6-20 16241 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Bob Pond at Old Borges Ranch. Comment
  CDA37338  Paspalum distichum D. G. Kelch 2010-10-31 10 .443 Contra Costa Valley north of Alhambra Valley Rd., south of Pinole Peak, east of Hercules. Comment
  UC1789178  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. Comment
  POM63644  Pectocarya penicillata C. F. Baker 1903-4-25 2804 Contra Costa Antioch. Comment
  JEPS108356  Pectocarya pusilla David Gowen 2005-4-4 225 Contra Costa Sibley Regional Preserve. East of Round Top and ouside of the park. NE-facing slope half way down to the valley. Comment
  HSC101963  Pedicularis densiflora Nikolaus Gillen, Michelle Bihler 2014-3-20 15 Contra Costa Mount Diablo State Park. Eagle Peak Trail. 649 Comment
  UC1125723  Pedicularis densiflora R. C. Wilson 1935-2-27 115 Contra Costa 1/2 mi s of Somersville 365 Comment
  UC691604  Pedicularis densiflora Mary L. Bowerman 1932-1-30 1080 Contra Costa nw corner of basin of ne fork of Sycamore Creek; Mount Diablo, Inner Black Hills Comment
  UCSB12518  Pedicularis densiflora Grah, Nancy 1962-4-14 Contra Costa 1.1 miles on Tappan Lane north of Tarry Lane, Orinda 243 Comment
  SD234195  Pedicularis densiflora Virginia Pinkus Ryder 1965-2-12 308 Contra Costa Mt. Diablo. 456 Comment
  UCSB11198  Pedicularis densiflora Hayes, Judy 1961-3-30 Contra Costa 3 miles N of South Gate of Mount Diablo State Park 670 Comment
  JEPS106989  Pellaea andromedifolia J. Greenhouse with Kevin Hintsa 2004-4-5 5087 Contra Costa Mt. Diablo, Fire Interpretive Trail, Devil's Pulpit 1088 Comment
  UC1874923  Pellaea andromedifolia Ruth Kirkpatrick 2003-3-1 1141 Contra Costa Mount Diablo 396 Comment
  UC399521  Pellaea andromedifolia Ivar Tidestrom June, 1895 Contra Costa Crockett Comment
  CAS-BOT-BC67559  Pellaea mucronata Mary L. Bowerman 1933-3-25 1774 Contra Costa Mount Diablo - ridge north of Emmons Canyon. 335 Comment
  UC692119  Pellaea mucronata var. mucronata Mary L. Bowerman 1933-5-2 1956 Contra Costa below Pioneer Camp (just above upper edge of chaparral); Mt Diablo 762 Comment
  JEPS17394  Penstemon centranthifolius Rimo Bacigalupi with G. T. Robbins 1955-5-4 4984 Contra Costa about 1 1/4 mi e Antioch (near the San Joaquin River); near San Joaquin River, e of Antioch 9 Comment
  POM14647  Penstemon centranthifolius C. F. Baker 1903-4-25 2938 Contra Costa Antioch. Comment
  NY601704  Penstemon heterophyllus var. heterophyllus W. L. Jepson 1921-6-16 9315 Contra Costa Mount Diablo Comment
  UCD124286  Penstemon laetus Terri Williamson 1990-6-2 88 Contra Costa 212 Poshard Street, Pleasant Hill. (Original collected in Tehachapi Mountains, Hwy/. 58 Kern County). 274 Comment
  JEPS116801  Pentachaeta alsinoides David Gowen, Barbara Ertter 2006-6-6 598 Contra Costa Near Upper San Leandro Reservoir at the NE end, on dirt road/trail (Rocky Ridge Trail?). Comment
  UC2029184  Pentagramma triangularis Barbara Ertter 1990-5-19 8999 Contra Costa Lafayette Ridge of Briones Regional Park N of Lafayette. Comment
  UC691890  Perideridia kelloggii Mary L. Bowerman 1938-6-30 3698 Contra Costa Black Oak Flat Mount Diablo (dry streamlet n of chaparral) 762 Comment
  CAS-BOT-BC418831  Persicaria hydropiperoides Virginia I. Dains; Walter Knight 1986-8-8 5473 Contra Costa Jct Rock S1 & Werner Cut Comment
  UC2027910  Persicaria maculosa Barbara Ertter 2000-9-30 17530 Contra Costa Diablo Foothills Regional Park, Stage Road in Pine Canyon above dry flood control dam. 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
  JEPS1458  Phacelia breweri Mary L. Bowerman 1935-4-26 2898 Contra Costa w Indian Ceremonial Spring; Mount Diablo 1021 Comment
  UC614672  Phacelia breweri L. Constance, J. L. Morrison 1938-4-5 2191 Contra Costa w slope of mt. near Deer Flat and head of Mitchell Canyon; South Coast Ranges, Mount Diablo 670 Comment
  UC691689  Phacelia breweri Mary L. Bowerman 1935-4-26 2898 Contra Costa w Indian Ceremonial Spring; Mount Diablo 1021 Comment
  UC691709  Phacelia breweri Mary L. Bowerman 1933-4-26 1928 Contra Costa s side of peak ridge ese North Peak; Mount Diablo 609 Comment
  UCD102377  Phacelia breweri Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 960 Comment
  CDA33836  Phacelia breweri D. G. Kelch 2010-5-15 10 .118 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 Comment
  UC809824  Phacelia californica A. R. Kruckeberg 1949-4-2 1733 Contra Costa banks just above Toll Gate; Richmond-San Rafael Ferry Comment
  CHSC21610  Phacelia ciliata Willis Ball 1975-2-23 450 Contra Costa Contra Loma Regional Park. In area #2. On s side of hill ca. 40 yds w of boat ramp at w side of lake. 60 Comment
  SEINET3158089  Phacelia ciliata L. S. Rose 1937-3-26 37013 Contra Costa Brentwood 6 Comment
  POM204460  Phacelia ciliata J. T. Howell 1933-3-29 10915 Contra Costa Near Pittsburg. Comment
  JEPS18324  Phacelia ciliata var. ciliata Rimo Bacigalupi with F. Chisaki 1957-3-27 5760 Contra Costa field along Newby rd 0.1 mi nw crossing with Empire Ave. (road) (about 2 mi sw of Oakley) 24 Comment
  UC75117  Phacelia ciliata var. ciliata C. F. Baker 1903-4-26 2904 Contra Costa Byron Comment
  JEPS2024  Phacelia distans W. L. Jepson 1923-4-22 9879 Contra Costa Mt. Diablo Comment
  SEINET3558890 Image available Phacelia distans Lewis S. Rose 1931-5-14 T 19 Contra Costa Mount Diablo. Comment
  UC107401  Phacelia distans T. S. Brandegee May 1889 Contra Costa Antioch Comment
  UCD120412  Phacelia distans P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  RSA83075  Phacelia distans Verne Grant, Alva Grant 1947-3-16 7892 Contra Costa East of Antioch. Comment
  CAS-BOT-BC154326  Phacelia phacelioides H. M. Hall; F. M. Essig 1916-5-31 10135 Contra Costa Mount Diablo 1140 Comment
  UC691329  Phacelia phacelioides Mary L. Bowerman 1933-4-26 1923 Contra Costa ese peak (s face); Mount Diablo, North Peak ridge 609 Comment
  JEPS99583  Phacelia rattanii Mary Bowerman 1994-6-19 Contra Costa Mount Diablo, Muir aarea, 10'W of restroom Comment
  CDA31462  Phacelia tanacetifolia D. G. Kelch 2006-5-27 6 .219 Contra Costa Pinole Valley Park, S of Pinole Valley Road near crest of El Sobrante Ridge. Comment
  CDA40455  Phacelia tanacetifolia D. G. Kelch 2004-4-3 4 .056 Contra Costa Carquinez Strait Region; Crockett-Tormey Headlands, west of the I-80 and Cummings Skyway junction. Comment
  UC306173  Phacelia tanacetifolia Katharine Brandegee Contra Costa Byron Springs Comment
  UC672349  Phacelia tanacetifolia Herbert L. Mason 1929-3-31 5140 Contra Costa hills n Mt. Diablo (Briones Rd) Comment
  JEPS108346  Phacelia tanacetifolia David Gowen 2005-3-26 216 Contra Costa Mt. Diablo State Park. Junction of dirt road to Deer Flat and dirt road to Moses Rock. Growing at the base of large rock pile. 304 Comment
  RSA29642  Phacelia tanacetifolia Joseph A. Ewan 1935-3-6 9128 Contra Costa Donovan Road, Kirker Pass. Comment
  UC1101560  Phalaris arundinacea Malcolm A. Nobs 1948-9-23 683 Contra Costa 7 mi s Kingston (Rock Slough); Rock Slough Comment
Read comments Oct 8 2012
  JEPS95764  Phalaris brachystachys Dianne Lake 1999-6-11 Contra Costa N-facing hillside E of intersecton of Tassajara and Lawrence Rds., S of Tassajara Rd. San Ramon 225 Comment
  UC2028499  Phalaris coerulescens Barbara Ertter 1999-6-12 16713 Contra Costa Black Hawk Ridge road on south side of Mount Diablo, just south confluence of NE and E forks of Sycamore Creek Comment
  CAS-BOT-BC259028  Phalaris lemmonii Ira L. Wiggins 1930-4-17 4583 Contra Costa 1/4 mi. s. of Byron Comment
  UC692384  Phalaris minor Mary L. Bowerman 1933-4-15 1849 Contra Costa canyon s Arroyo del Cerro, Mount Diablo (at edges of s-facing flat which slopes slightly adjacent to stream bed); Mount Diablo Comment
  UCD89059  Phalaris minor Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  CAS-BOT-BC265960  Phalaris minor Mary L. Bowerman 1933-4-15 1849 Contra Costa Canyon south of Arrroyo del Cerro, Mount Diablo Comment
  CDA15270  Phalaris paradoxa G. F. Hrusa, D. Crowe 1998-5-8 14401 Contra Costa Sacramento Delta; Open sites near cyclone fence-line surrounding disturbed grasslands at E end of Dow Chemical property. Uncommon here. Comment
  UC768491  Phalaris paradoxa R. F. Hoover 1937-5-14 2123 Contra Costa Byron Hot Springs Comment
  UCD89368  Phalaris paradoxa Beecher Crampton 1956-5-14 3381 Contra Costa 4.5 miles S of Antioch. Comment
  SEINET5566389  Phalaris paradoxa E. A. Bernays 1985-1 s.n. Contra Costa Russell Reserve. Comment
  UC963765  Phlox gracilis Herbert L. Mason 1926-3-7 2703 Contra Costa via Walnut Creek to summit to Danville to Niles Canyon; Mt. Diablo Comment
  CAS-BOT-BC141123  Phoradendron serotinum subsp. macrophyllum Mary L. Bowerman 1931-2-22 520 Contra Costa Mount Diablo. Sycamore Canyon, head of E fork Comment
  UC608463  Phoradendron villosum Beryl O. Schreiber 1934-2-22 944 Contra Costa Mt. Diablo Rd. 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
  CAS-BOT-BC260886  Phragmites australis Walter Knight; Irja Knight 1978-9-5 3230 Contra Costa Browns Island 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
  UC311199  Phragmites australis A. D. E. Elmer July 1903 4541 Contra Costa Martinez Comment
  CAS-BOT-BC260890  Phragmites australis A. D. E. Elmer 1903-7-1 4541 Contra Costa Martinez Comment
  JEPS87944  Phyla nodiflora var. nodiflora Barbara Ertter, Brad Olson 1991-9-28 10828 Contra Costa at s end of San Pablo Reservoir between Orinda and El Sobrante; San Pablo Reservoir 91 Comment
  JEPS46474  Pickeringia montana W. L. Jepson 1919-1-25 8212 Contra Costa Moraga Ridge Comment
  CAS-BOT-BC202272  Pickeringia montana var. montana A. D. E. Elmer 1903-5-1 4315 Contra Costa Mount Diablo Comment
  UC692282  Pickeringia montana var. montana Mary L. Bowerman 1933-2-4 1690 Contra Costa flat e Mt. Diablo-North Peak divide; Mount Diablo 822 Comment
  UC1077124  Pilularia americana Herbert L. Mason 1932-3-20 6851 Contra Costa Deer Valley Comment
  UC143  Pinus attenuata Jos. Burtt Davy 1897-1-1 Contra Costa Moraga Comment
  JEPS46807  Pinus coulteri T. H. Goodspeed 1909-1-1 Contra Costa near Clayton (Mt. Diablo); Mt. Diablo Comment
  JEPS47873  Pinus coulteri W. L. Jepson 1931-4-5 15726 Contra Costa low ridges s Nortonville 457 Comment
  SJSU1345  Pinus muricata A. W. Jacobs 1953-4-26 Contra Costa Tilden Regional Park Botanic Garden, E of Berkeley Comment
  UC1051358  Pinus muricata N. Floy Bracelin 1941-10-19 1713 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  UC1061681  Pinus radiata N. Floy Bracelin 1941-12-29 1833 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1076352  Pinus sabiniana Herbert L. Mason 1929-10-8 5481 Contra Costa Nortonville Comment
  CDA39509  Piperia transversa D. G. Kelch 2005-5-23 5 .379 Contra Costa Carquinez Strait Region; Crockett; West Valona (Crockett), between railroad tracks and Pinus pinea grove. Comment
  UC691267  Piperia unalascensis Mary L. Bowerman 1931-5-2 789 Contra Costa n end Eagle Point ridge; Mount Diablo 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
  SEINET3292817 Image available Plagiobothrys Lewis S. Rose 1933-3-29 33046 Contra Costa Pittsburg Comment
  JEPS90184  Plagiobothrys acanthocarpus Dean W. Taylor 1992-4-16 12390 Contra Costa s of Byron Hot Springs (San Joaquin Valley); San Joaquin Valley 45 Comment
  UCR265176  Plagiobothrys acanthocarpus Barbara Ertter, Jim Jokerst, Dave Magney 1989-4-5 8117 Contra Costa San Joaquin Valley, Clifton Court Forebay, c. 15 air miles southwest of Stockton 0 Comment
  RSA565113  Plagiobothrys acanthocarpus Wm. Taylor 1992-4-16 12390 Contra Costa S of Bryan Hot Springs, in swale draining on E margin of [the township and range] 46 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
  UC882304  Plagiobothrys bracteatus Joseph Andorfer Ewan 1936-5-24 9698 Contra Costa w slope Bald Peak; San Pablo Ridge Comment
  POM299395  Plagiobothrys bracteatus Joseph A. Ewan 1936-5-24 9698 Contra Costa West slope Bald Peak San Pablo Ridge Comment
  SEINET8731527 Image available Plagiobothrys canescens Lewis S. Rose 1933-1 33046 Contra Costa Pittsburg. Comment
  UC2027838  Plagiobothrys canescens Barbara Ertter with Dan Norris 2001-4-15 17613 Contra Costa West side Mount Diablo, divide NW of pond at base of China Wall formation. Comment
  UC78081  Plagiobothrys fulvus T. S. Brandegee May, 1889 Contra Costa Antioch Comment
  CHSC21833  Plagiobothrys fulvus var. campestris Robert A. Schlising 1962-4-7 2140 Contra Costa Coast Ranges. Field along Deer Valley Road, few mi S of Antioch. Comment
  JEPS116860  Plagiobothrys fulvus var. campestris David Gowen 2007-4-13 670 Contra Costa Diablo Foothills, west of the grassy field at Castle Rock Recreation Area. Comment
  UCD120819  Plagiobothrys fulvus var. campestris Collector unknown Date unknown 73 Contra Costa Lower Curry Creek Canyon, Mt. Diablo. 243 Comment
  CHSC67185  Plagiobothrys humistratus James D. Jokerst 1991-3-28 3228 Contra Costa Kellogg Watershed Inundation Zone at enclosure at 'The Windmills,' N of Livermore. Comment
  CDA40675  Plagiobothrys humistratus Jim Jokerst 1989-3-28 3060 Contra Costa Northwest of junction of Byron Hot Springs Road and Armstrong Road. Northeast of Livermore. 0 Comment
  JEPS116917  Plagiobothrys humistratus David Gowen, Chris Thayer 2009-4-6 983 Contra Costa Cowell Ranch west of dam. 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
  UC2070573  Plagiobothrys stipitatus Barbara Ertter with David Gowen and Mike Park 2004-4-13 18348 Contra Costa Black Diamond Mines Regional Park south of Pittsburg, ca 1 km due east of Sidney Flat Headquarters. Comment
  CHSC106840  Plagiobothrys stipitatus var. micranthus Barbara Ertter; Jim Jokerst, Dave Magney 1989-4-5 8126 Contra Costa SE part of county. Ca 15 air miles SW of Stockton, alkali sink W and adjacent to Clifton Court Forebay. Comment
  JEPS127669  Plagiobothrys stipitatus var. micranthus Barbara Ertter with David Gowen and Michael Park 2017-5-2 22799 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  UC78124  Plagiobothrys stipitatus var. stipitatus Mrs. K. Brandegee Apr 1883 Contra Costa near Antioch Comment
  UC1178520  Plagiobothrys tenellus Ethel Crum 1936-4-5 1742 Contra Costa two mi w Byron; South Coast Ranges 45 Comment
  CAS-BOT-BC6475  Plantago californica M. K. Curran 1883-1-1 s.n. Contra Costa Antioch Comment
  JEPS111999  Plantago coronopus A. G. Murdock 2004-6-4 318 Contra Costa Pacheco Marsh Salt marsh NE of Waterbird 5 Comment
  UCR263544  Plantago coronopus Barbara Ertter 1990-10-24 9684 Contra Costa San Francisco Bay Region, Martinez Regional Shoreline on Carquinez Strait 2 Comment
  UC1745803  Plantago elongata Annetta M. Carter 1934-3-30 454 Contra Costa Donovan Rd. to Pittsburgh, about 2 mi. SW of Nortonville. Comment
  CDA42160  Plantago elongata Jim Jokerst 1989-3-28 3063 Contra Costa Northwest of junction of Byron Hot Springs Road and Armstrong Road. Northeast of Livermore. 0 Comment
  JEPS111998  Plantago lanceolata A. G. Murdock 2004-5-28 271 Contra Costa Pinole Peak 205 Comment
  JEPS22023  Plantago lanceolata G. Thomas Robbins with S. Galen Smith 1958-6-2 3853 Contra Costa just e Hercules city boundary (Franklin Canyon Road (State Highway 4)); Refugio Valley 18 Comment
  UC1818866  Plantago lanceolata Barbara Ertter, Kristin Ertter 1995-7-11 14475 Contra Costa Sulfur Spring on Pine Cr, Diblo Foothill Regional Park, marshy wet ground. 121 Comment
  CHSC21614  Plantago major Willis Ball 1975-2-23 434 Contra Costa Contra Loma Regional Park. Small population in area #1 spread out in picnic area ca. 100 yds s of lake. 10 yds n of w end of parking lot. 45 Comment
  JEPS112003  Platanus racemosa D. G. Kelch 2004-4-25 04 .106 Contra Costa Arroyo del Hambre Along Alhambra Creek in Martinez 74 Comment
  CAS-BOT-BC6458  Platystemon californicus Mary Katherine (Mrs.) Brandegee 1889-4-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC91604  Platystemon californicus John Thomas Howell 1933-5-14 11278 Contra Costa Hills east of Saint Mary's College. Comment
  JEPS111988  Platystemon californicus D. G. Kelch 2004-3-12 04 .34 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road 220 Comment
  UC101599  Platystemon californicus Katharine Brandegee 1907-5-5 a Contra Costa between Antioch and Marsh Creek; between Antioch and Marsh Creek Comment
  UC2027803  Plectritis ciliosa Barbara Ertter with Holly Forbes 1997-4-20 15556 Contra Costa North base of Mount Diablo, trail to Back Creek from Mitchell Canyon trailhead. Comment
  UC2028088  Plectritis ciliosa Barbara Ertter, Tony Morosco 1998-4-12 15985 Contra Costa Base of Mount Olympia on north side of Mount Diablo, south side of lower end of Olympia Trail. 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
  UC1818900  Plectritis ciliosa subsp. ciliosa Barbara Ertter, Mary Bowerman 1994-6-19 12854 a Contra Costa Mt. Diablo State Park east of Walnut Creek; scrub oak thicket north of road, north of lower summit parking lot, next to drainage on north facing slope. Comment
  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
  RSA517360  Plectritis congesta subsp. brachystemon L. T. Dempster 1954-5-29 P 14 Contra Costa Canyon Drive, Orinda. Comment
  UC28872  Plectritis macrocera Jos. Burtt Davy 1901-4-21 Contra Costa Wildcat Canyon Comment
  UC766304  Plectritis macrocera Robert F. Hoover 1935-3-10 312 Contra Costa Antioch Comment
  UCD90164  Pleuropogon californicus var. californicus P. B. Kennedy 1929-4-21 s.n. Contra Costa Near Concord, corner of Franklin Canyon Road, by Soldier's Monument. Comment
  CAS-BOT-BC356111  Pluchea odorata Brian Atwater 1978-10-24 BA- 164 Contra Costa Between Bethel Island and Holland Tract Comment
  JEPS78623  Pluchea odorata var. odorata Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3284 Contra Costa Browns Island, Botany Cove Comment
  CAS-BOT-BC254883  Poa bulbosa John Thomas Howell 1983-5-12 54747 Contra Costa Juniper Camp, Mount Diablo 914 Comment
  POM300703  Poa howellii Mary L. Bowerman 1933-3-21 2148 Contra Costa Below Grape Spring (south from Curry Canyon) Comment
  UCSB12522  Poa pratensis Grah, Nancy 1962-4-14 Contra Costa .2 miles north of Miner Rd. on Sleepy Hollow Lane, Orinda 182 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
  UC39568  Poa secunda subsp. secunda Alice Eastwood 1893-5-3 Contra Costa Antioch Comment
  UC691174  Poa secunda subsp. secunda Mary L. Bowerman 1932-3-27 1140 Contra Costa below Mitchell Rock; Mt Diablo Comment
  UC691176  Poa secunda subsp. secunda Mary L. Bowerman 1932-4-9 1323 Contra Costa s spur on meridian Inner Black Hills; Mt Diablo Comment
  JEPS78820  Pogogyne serpylloides Edward Lee 1936-5-24 2161 Contra Costa Headwaters of Marsh Creek, about 8 miles from Marsh Creek Road, Morgan Territory Comment
  OBI60316  Pogogyne serpylloides Joseph Andorfer Ewan 1935-5-26 9305 Contra Costa E slope of Bold Peak , San Pablo Ridge 549 Comment
  RSA0022137  Pogogyne serpylloides J. T. Howell 1930-4-22 4747 Contra Costa Bald Peak Comment
  RSA0068483  Pogogyne serpylloides Katie Gallagher, Nick Jensen 2014-4-26 192 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  UC691511  Pogogyne serpylloides Mary L. Bowerman 1932-4-9 1322 Contra Costa Inner Black Hills: Firebreak on large spur which heads into Sycamore Canyon Comment
  UC691516  Pogogyne serpylloides Mary L. Bowerman 1931-5-21 876 Contra Costa Curry Canyon: Hard open flat by Olafson's barn 274 Comment
  JEPS65184  Pogogyne zizyphoroides L. R. Heckard 1971-4-15 2483 Contra Costa At intersection of Holey Road, South of Byron. Comment
  CAS-BOT-BC134040  Polemoniaceae Elsie Zeile 1910-4-2 s.n. Contra Costa Fish R. road 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
  JEPS99992  Polygonum arenastrum G. Smick 2003-5-8 GAS 176 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC465853  Polygonum aviculare subsp. aviculare Tracy J. Storer 1912-7-12 Contra Costa 2 mi SW of Walnut Creek 60 Comment
  CAS-BOT-BC414177  Polygonum aviculare subsp. depressum R. E. Frenkel 1963-9-8 278 Contra Costa On Walnut Blvd., Walnut Creek Comment
  CDA15275  Polygonum aviculare subsp. rurivagum G. F. Hrusa, D. Crowe, R. York 1998-7-17 14712 Contra Costa Sacramento Delta; E end of Dow Chemical property at Antioch. Comment
  UC1784203  Polygonum persicaria Ethel Crum 1930-9-29 862 Contra Costa Marsh Creek Road to Holt Comment
  OBI70564  Polygonum ramosissimum subsp. ramosissimum D. G. Kelch 1996-10-17 s.n. Contra Costa Carquinez Strait: Pt Edith Marsh 1 Comment
  CDA42732  Polypodium calirhiza A. G. Murdock 2003-2-21 71 Contra Costa Carquinez Strait Region; Martinez; on top of north-facing hill above train tunnel on Mt. Wanda. Comment
  JEPS106988  Polypodium calirhiza J. Greenhouse with Kevin Hintsa 2004-4-5 5088 Contra Costa Mt. Diablo, Fire Interpretive Trail, Devil's Pulpit 1109 Comment
  JEPS112032  Polypodium calirhiza D. G. Kelch 2004-3-5 04 .4 Contra Costa Martinez - Rankin Open Space Rankin Park, Martinez 68 Comment
  UC1222107  Polypodium calirhiza Joseph Andorfer Ewan 1934-3-10 8657 Contra Costa 1/2 mi below Orinda rd. bridge; Wildcat Canyon Comment
Read comments Aug 23 2009
  UC1478304  Polypodium calirhiza Alan R. Smith with Tom Lemieux 1981-11-19 826 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
  CAS-BOT-BC72043  Polypodium calirhiza Mary L. Bowerman 1935-3-15 2736 Contra Costa Arroyo del Cerro, east fork 262 Comment
  CAS-BOT-BC233018  Polypogon interruptus Mary L. Bowerman 1931-4-4 656 Contra Costa Mount Diablo. West Road 4.5 miles from entrance Comment
  CAS-BOT-BC232582  Polypogon monspeliensis A. A. Beetle 1941-6-24 1750 Contra Costa Point Richmond on San Francisco Bay Comment
  CDA32661  Polypogon monspeliensis D. G. Kelch, Andrew G. Murdock 2004-4-26 4 .135 Contra Costa Carquinez Strait Region; Pt. Pinole. Comment
  JEPS45888  Polypogon monspeliensis Virginia Bufford 1932-4-18 578 Contra Costa Wildcat Canyon Comment
  UCD91222  Polypogon monspeliensis A. A. Beetle 1941-6-24 1750 Contra Costa Point Richmond on San Francisco Bay. Comment
  RSA720803  Polypogon viridis Mary L. Bowerman 1975-9-14 s.n. Contra Costa Mount Diablo. Muddy rivuley coming from leak in pipe near Chase Pond. Comment
Read comments Jun 30 2011
  CAS-BOT-BC237471  Polypogon viridis Mary L. Bowerman 1936-8-17 3527 Contra Costa Mount Diablo. Sulphur Spring in Pine Canyon 137 Comment
  POM300722  Polypogon viridis Mary L. Bowerman 1933-11-4 2462 Contra Costa Mount Diablo; Alder Creek Springs. 488 Comment
  UC606764  Polystichum munitum Edward Lee 1936-4-19 1983 Contra Costa se slope of island Red Rock; San Francisco Bay Comment
  CAS-BOT-BC102383  Populus fremontii Walter Knight; Irja Knight; J. T. Howell; E. McClintock; et al. 1978-9-5 3223 Contra Costa Browns Island Comment
  UC4923  Populus fremontii subsp. fremontii W. C. Blasdale 1901-9-28 Contra Costa San Pablo; at the old Castro house, along the creek Comment
  CDA33072  Potamogeton crispus D. G. Kelch 2010-10-5 10 .427 Contra Costa The Delta.; Antioch shoreline. West of Fulton shipyard. Comment
  CAS-BOT-BC452110  Potamogeton crispus Walter Knight 1979-6-15 3385 Contra Costa Where Straight Slough merges with New York Slough. Browns Island. Comment
  RSA755535  Potamogeton diversifolius Barbara Ertter, Brad Olson 1991-9-28 10839 Contra Costa San Pablo Reservoir between Orinda and El Sobrante 91 Comment
  UC1795780  Potamogeton filiformis Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14644 Contra Costa North Gate Road at northwest base of Mount Diablo, ''Tick Pond'' west of road toward Castle Rock. Comment
  JEPS99495  Potamogeton foliosus Mary Bowerman 1995-6-8 Contra Costa Mount Diablo, Pine Pond. Comment
  CAS-BOT-BC144847  Potentilla rivalis Virginia I. Dains; Walter Knight 1986-8-8 5494 Contra Costa Jct Rock S1 & Werner Cut Comment
  JEPS23820  Proboscidea lutea G. Thomas Robbins 1959-8-1 4114 Contra Costa roadside berm of frontage road just s Mt. Diablo Blvd. ((about 0.5 mi e of concrete bridge at Charles Hill and about 0.2 mi w of jct. of Hidden Valley Rd.), 2 mi w of Lafayette) 144 Comment
  JEPS46549  Proboscidea lutea Mrs. Kate Jared Stirring Sept. 1914 Contra Costa between Concord and Walnut Creek; Ignacio Valley Comment
  JEPS84884  Proboscidea lutea G. Thomas Robbins 1959-8-1 4114 Contra Costa roadside berm of frontage road just s Mt. Diablo Blvd. ((about 0.5 mi e of concrete bridge at Charles Hill and about 0.2 mi w of jct. of Hidden Valley Rd.), 2 mi w of Lafayette) 144 Comment
  CDA33067  Prunus dulcis D. G. Kelch 2010-10-5 10 .415 Contra Costa The Delta; Just east of Antioch bridge. Comment
  UC1819021  Prunus dulcis Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14642 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; packed ground of trailside. Comment
  JEPS111725  Pseudognaphalium beneolens D. G. Kelch 2004-7-9 04 .304 Contra Costa Martinez - West: Ozol Rock and Scenic Drive; Martinez along Alhambra Drive 3 Comment
  CDA42365  Pseudognaphalium californicum D. G. Kelch, Vince Guise 2012-7-26 12 .232 Contra Costa El Sobrante; Circle Dr. Comment
  JEPS111514  Pseudognaphalium californicum D. G. Kelch 2005-5-13 05 .277 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 66 Comment
  JEPS111723  Pseudognaphalium californicum D. G. Kelch 2004-7-9 04 .295 Contra Costa Crockett - Carquinez Scenic Drive Carq. Scenic Dr. East of Crockett West of Bull Valley SA 60 Comment
  UC691825  Pseudognaphalium californicum Mary L. Bowerman 1930-6-18 340 Contra Costa Dan Cook Canyon 289 Comment
  SEINET9295311  Pseudognaphalium leucocephalum Unknown 1950-7-29 624 Contra Costa Waste ground along Santa Fe RR. 1 mi N of Richmond, gravelly soil Plant sent to USCH for identification. Query letter included on specimen. Comment
  UC1584688  Pseudognaphalium thermale Jerry Powell Jul 14 1987-Jul 30 1987 1505 Contra Costa Point Molate Beach Point Molate Beach (chaparral and grassy meadow on bluffs above Bay edge) Comment
  CAS-BOT-BC148628  Ptelea crenulata Alice Eastwood 1915-5-30 4489 Contra Costa Mount Diablo Comment
  JEPS112112  Ptelea crenulata D. G. Kelch 2005-5-1 05 .202 Contra Costa Crockett - Edwards Canyon 100 Comment
  JEPS40167  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
  UC1561102  Ptelea crenulata Dean Wm. Taylor with Rexford E. Palmer 1987-4-22 8926 Contra Costa Brushy Creek drainage; South Coast Ranges, Brushy Creek, Byron Hot Springs Quad. (1 310 Comment
  UC17379  Ptelea crenulata W. H. Brewer 1862-5-20 1130 Contra Costa n side Mount Diablo (hill n of coal mines) 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
  UCR17982  Ptelea crenulata Dr. H. de Forest 1930-4-6 s.n. Contra Costa San Francisco Bay Region, SE of Nortonville, SW of Antioch, east of Concord 274 Comment
  SD69961  Ptelea crenulata Darley Howe 1968-5-20 Contra Costa 8 miles north of Alameda-Contra Costa County line on Morgan Territory Road Comment
  UCD117073  Ptelea crenulata R. W. Lundh 1932-8-17 134 Contra Costa Marsh Creek. 381 Comment
  SEINET951733  Pteridaceae T. R. Van Devender, S. H. Stein 1980-1 Contra Costa Lafayette Reservoir Comment
  JEPS111935  Pteridium aquilinum A. G. Murdock 2004-4-30 244 Contra Costa Vaca Canyon On north side of road along creek 165 Comment
  UC606766  Pteridium aquilinum var. pubescens Edward Lee 1936-4-19 2016 Contra Costa e slope of island Red Rock; San Francisco Bay Comment
  UC1198069  Pterostegia drymarioides Joseph P. Tracy 1934-4-30 13191 Contra Costa near Lafayette 152 Comment
  UC6916  Pterostegia drymarioides W. L. Jepson 1891-5-23 Contra Costa Mt. Diablo Comment
  RSA0031298  Puccinellia nuttalliana Barbara Ertter, Brad Olson 2000-6-2 17301 Contra Costa Brushy Peak Regional Preserve NE of Livermore, at south base of Brushy Peak. Comment
  CAS-BOT-BC239827  Puccinellia simplex Niall McCarten; V. I. Dains 1986-6-1 03261200 9 Contra Costa (Highline reach 12-15) near Brushy Cr., empties into Clifton Ct. Forebay Comment
  UC1543202  Quercus Donald G. Nelson 1939-12-3 642 Contra Costa n of Clayton (hillside opposite crest of trail from old brick ruin at coal mine) Comment
  CAS-BOT-BC104165  Quercus X morehus C. Hart Merriam 1919-5-10 s.n. Contra Costa From the hill above Redwood Inn Moraga Valley Comment
  CAS-BOT-BC104167  Quercus X morehus Mary L. Bowerman 1935-10-26 3349 Contra Costa Mount Diablo. 0.1 mile by road above Silver Spring, 50 feet from road 859 Comment
  CAS-BOT-BC45663  Quercus agrifolia Mary L. Bowerman 1930-6-3 225 Contra Costa West road, 1.9 miles from west entrance, Mount Diablo Comment
  CDA31284  Quercus agrifolia D. G. Kelch, Troy McGregor 2010-2-7 10 .030-B Contra Costa Carquines Strait; W of Martinez in hills. Comment
  RSA758316  Quercus agrifolia Doug Goldman 2004-11-3 2923 Contra Costa South side of Marsh Creek, north side of Morgan Territory Road. 354 Comment
  UCD17437  Quercus agrifolia E. Dean; M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 659 Contra Costa California. Contra Costa County: Mount Diablo State park, along Knobcone Point Road, just east of balancing rock, upslope of road. 548 Comment
  CDA20380  Quercus agrifolia var. agrifolia P. Akers 2002-5-11 s.n.- 2 Contra Costa Northern California; Mt Diablo Summit Trail at water tank picnic area. 873 Comment
  CAS-BOT-BC62695  Quercus chrysolepis Paul F. Covel 1940-5-12 1744 Contra Costa Mt. Diablo (at Rock City) 487 Comment
  UC405353  Quercus chrysolepis W. P. Taylor 1912-7-26 Contra Costa w side Mt. Diablo Comment
  UC405354  Quercus chrysolepis W. P. Taylor 1912-7-22 Contra Costa w side Mt. Diablo Comment
  UC847906  Quercus chrysolepis Lewis S. Rose 1941-5-15 41236 Contra Costa w slope Mt. Diablo Comment
  CAS-BOT-BC86645  Quercus douglasii H. E. McMinn 1922-10-1 403 Contra Costa Mitchell Canyon, Mt. Diablo Comment
  UC1135448  Quercus douglasii R. W. Lundh 1932-8-17 131 Contra Costa 1 mi e Round Valley; Mt. Diablo Quad. 518 Comment
  UC691285  Quercus douglasii Mary L. Bowerman 1930-8-31 445 Contra Costa Dan Cook Canyon Mount Diablo Comment
  CAS-BOT-BC86121  Quercus dumosa Mary L. Bowerman 1935-11-30 3355 Contra Costa Mount Diablo. Fossil Ridge, roadside Comment
  CDA23636  Quercus lobata D. G. Kelch 2007-10-6 7 .628 Contra Costa Carquinez Strait; Fernandez Ranch. Muir Land Trust Property 4.5 km W of Rodeo. Comment
  UC1135713  Quercus lobata R. W. Lundh 1932-9-1 154 Contra Costa 1 mi n Eagle Point; Mt. Diablo Quad. 228 Comment
  UC691278  Quercus lobata Mary L. Bowerman 1930-6-3 224 Contra Costa 1.9 mi from West road (= North Rd.) entrance; Mount Diablo 167 Comment
  SEINET12034643  Quercus lobata L. S. Rose 1938-1 38306 Contra Costa Marsh Creek,6 mi E of Clayton 152 Comment
  SEINET9356036  Quercus lobata Unknown 1938-10-28 Contra Costa Marsh Creek, 6 mi E of Clayton. Canyon bottom. Comment
  UC1543217  Quercus lobata Donald G. Nelson 1939-12-3 643 Contra Costa along hwy. near where Marsh Creek Hwy. comes into more open hill country Comment
  UCD84948  Quercus palmeri Chuck Hughes 2010-3-29 220 Contra Costa About 0.4 mile south of Vasco Road. 326 Comment
  UCD81372  Quercus palmeri J. M. Tucker 1981-4-25 4453 -G Contra Costa Antonio Souza Ranch southwest of Byron. Mt. Diablo Meridian. 309 Comment
  UCR141754  Quercus parvula var. shrevei Ellen Dean, Et al. 2000-9-13 653 Contra Costa City of El Sobrante Ridge, upslope of the terminus of Heavenly Ridge Rd., just south of junction of Heavenly Ridge Trail and Manzanita Trail, along Manzanita Trail 213 Comment
  JEPS37967  Quercus wislizeni W. L. Jepson 1907-4-26 2647 Contra Costa Mt. Diablo Comment
  UC1543170  Quercus wislizeni Donald G. Nelson 1938-11-6 587 Contra Costa about 1 mi beyond Marsh Creek Springs (Marsh Creek Highway, ne of Mt. Diablo) Comment
  UC691307  Quercus wislizeni Mary L. Bowerman 1931-10-5 1056 Contra Costa ridge e Rhine Canyon (about halfway-up slope, on spur at s end of ridge (also next canyon to e, which enters Curry Canyon at gate to Olafsons' ranch); Mount Diablo 487 Comment
  CAS-BOT-BC104718  Quercus wislizeni D. C. Barclay 1919-5-10 s.n. Contra Costa from the hill above Redwood Inn, Moraga Valley Comment
  UC1135920  Quercus wislizeni var. frutescens R. W. Lundh 1933-3-4 209 Contra Costa 0.5 mi n Pinehurst; Concord Quad. 304 Comment
  UC35844  Rafinesquia californica F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  RSA132889  Ranunculus aquatilis var. capillaceus Simon Simonian 1954-8-24 1311 a Contra Costa Entersprise Canal, east-west section crossing of McKinley Ave west of McDonough Ave., 2 miles north of Centerville. Main canal. Comment
  CHSC24922  Ranunculus californicus M. A. Callahan 1976-4-11 8 Contra Costa Ca. 70 m e of house at 1976 Mohawk Dr. Pleasant Hill, at base of canyon. 129 Comment
  UC549110  Ranunculus canus Lyman Benson 1931-3-18 2655 Contra Costa Danville South Coast Mt. Range, Sacramento River Watershed, Mt. Diabl (w base of mt.) 213 Comment
  UC692186  Ranunculus canus Mary L. Bowerman 1930-6-5 246 Contra Costa North Road 5.8 mi from entrance to park (near a stream in canyon); Mount Diablo Comment
  POM149874  Ranunculus canus Jos. Burtt Davy 1898-05 s.n. Contra Costa San Ramon, Mt Diablo Comment
Read comments Jan 23 2011
  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
  UC9453  Ranunculus canus var. canus J. Burtt Davy 1895-4-7 915 Contra Costa Antioch Comment
  CDA922  Ranunculus hebecarpus D. G. Kelch 2006-5-4 6 .125 Contra Costa Carquinez Strait; Vaca Canyon, on North facing road cut/bank along Alhambra Valley Road. 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
  RSA14522  Ranunculus hebecarpus L. S. Rose 1934-3-21 34071 Contra Costa Marsh Creek, 6 miles E of Clayton. Comment
  UC9443  Ranunculus hebecarpus W. H. Brewer 1862-5-6 1049 Contra Costa near Camp 70; Monte Diablo Comment
  UC692127  Ranunculus muricatus Mary L. Bowerman 1933-4-15 1844 Contra Costa canyon s Arroyo del Cerro (in or bordering stream); Mount Diablo Comment
  UCSB2072  Ranunculus occidentalis Hand, B. 1960-4-9 Contra Costa 2.9 miles from south gate on Mt. Diablo Road, Mt. Diablo. 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
  UC9383  Ranunculus orthorhynchus var. bloomeri J. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  JEPS100009  Raphanus raphanistrum G. Smick 2003-4-8 GAS 132 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  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
  UC1789165  Rhamnus alaternus Barbara Ertter with Tony Morosco 1998-10-18 16431 Contra Costa NW slope of Lime Ridge Open Space just S of Ygnacio Valley Road, bottom of swale at fenceline Comment
Read comments Apr 29 2013
  CDA4905  Rhamnus alaternus Barbara Ertter, D. Gowen 2006-4-14 18667 Contra Costa Lime Ridge Open Space at northwest base of Mt. Diablo; north side of Ygnacio Valley Road near culvert for major draw at bend in road. 0 Comment
  UC692596  Rhamnus californica Mary L. Bowerman 1932-11-26 1677 Contra Costa Pepperwood Springs (by w road not far from junction of roads) Mount Diablo Comment
  CAS-BOT-BC59896  Rhamnus ilicifolia Mary L. Bowerman 1932-9-17 1579 Contra Costa Donner Canyon, w. branch: Canyon bottom. Comment
  JEPS42023  Rhamnus ilicifolia W. L. Jepson 7583 Contra Costa Donner Canyon Mt. Diablo 609 Comment
  UC1121879  Rhamnus ilicifolia G. T. Nordstrom 1937-11-9 1411 Contra Costa 3.2 mi se Somerville; Mt. Diablo Quad. 198 Comment
  UC692593  Rhamnus tomentella subsp. tomentella Mary L. Bowerman 1932-11-19 1658 Contra Costa Lower Grapevine Spring, at head of spring Mount Diablo Comment
  UC692594  Rhamnus tomentella subsp. tomentella Mary L. Bowerman 1932-11-19 1657 Contra Costa Lower Grapevine Spring, at head of spring Mount Diablo Comment
  CAS-BOT-BC200698  Rhus aromatica Mary L. Bowerman 1933-3-25 1776 Contra Costa Emmons Canyon, off Stone Valley Comment
  JEPS111590  Rhus trilobata D. G. Kelch 2005-3-26 05 .98 Contra Costa Pinole Peak Fernandez Ranch. South side - road from Perreria Road to Pinole Peak Ridge. Rare shrub up to 1.5 ms 150 Comment
  UC692579  Rhus trilobata Mary L. Bowerman 1931-4-5 678 Contra Costa below Gregory Ranch (between rocky point below house and shelf below it on w side); Mount Diablo Comment
  POM300719  Rhus trilobata var. pilosissima Mary L. Bowerman 1933-3-25 1776 Contra Costa Emmons Canyon, off Stone Valley Comment
  UC2031402  Ribes amarum Barbara Ertter with David Gowen and Steve Matson 2007-3-17 18788 Contra Costa Huckleberry Botanic Regional Preserve in East Bay Hills above Montclair, dog-leg of Skyline Regional Trail at junction with trail from Pinehurst Road at base of canyon of upper San Leandro Creek 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
  SBBG28501  Ribes californicum E. Mulliken 1905-1-28 Contra Costa Wildcat Cyn, Berkeley Hills Comment
  CAS-BOT-BC92922  Ribes californicum var. californicum Earle Mulliken 1905-1-28 49 Contra Costa Wildcat Canon [Canyon], Berkeley Hills. Comment
  UCSB2606  Ribes californicum var. californicum Keator, Glenn 1959-7-1 Contra Costa About 2 mile above Laurel camp; on Mt. Diablo Comment
  RSA0025008  Ribes divaricatum var. pubiflorum H. P. Chandler 1900-3-17 s.n. Contra Costa Wildcat Canyon, Berkeley Hills. Comment
  RSA0021633  Ribes malvaceum H. de Forest 1930-3-28 s.n. Contra Costa Mt. Diablo, 1 mi. from summit. Comment
  RSA0021635  Ribes malvaceum J. T. Howell 1926-3-7 1667 Contra Costa Mt. Diablo. Comment
  UC1127450  Ribes menziesii R. W. Lundh 1932-9-22 166 Contra Costa Mount Diablo Mt. Diablo Quadrangle Comment
  UC692433  Ribes menziesii Mary L. Bowerman 1935-5-18 3018 Contra Costa nw-facing slope across the road from and a little e parking area; Mt. Diablo 1082 Comment
  UC692434  Ribes menziesii Mary L. Bowerman 1935-6-1 3102 Contra Costa first minor ridge e Mitchell-Pine divide; Mount Diablo 1005 Comment
  CAS-BOT-BC206019  Ribes menziesii Peter H. Raven 1956-4-8 8985 Contra Costa About 0.5 mile north-east of Grizzly Peak 396 Comment
  CAS-BOT-BC209361  Ribes sanguineum var. glutinosum Peter H. Raven 1950-3-5 1399 Contra Costa Redwood Canyon 152 Comment
  UC1177378  Ribes sanguineum var. glutinosum Peter H. Raven 1950-3-5 1397 Contra Costa upper trail Redwood Canyon 243 Comment
Read comments Aug 9 2011
  SEINET13942922 Image available Ribes victoris Joseph Andorfer Ewan 1936-1 9739 Contra Costa Thickets along Wildcat Creek Comment
  UC2028188  Rorippa curvisiliqua Barbara Ertter 1998-5-3 16055 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. Comment
  JEPS116841  Rosa David Gowen 2007-5-3 695 Contra Costa South of Crockett. Comment
  UC555648  Rosa californica Herbert L. Mason 1924-11-23 1167 Contra Costa Cashion Canyon Las Trampas Ridge Comment
  CAS-BOT-BC147411  Rosa californica Mary L. Bowerman 1931-5-13 841 Contra Costa Pine Canyon one mile above the Sulphur Spring Comment
  UC2028227  Rosa spithamea Barbara Ertter 1998-12-6 16470 Contra Costa Rock City area on southwest side Mount Diablo. Comment
  UC2027979  Rubus discolor Barbara Ertter, Mary Bowerman 1996-11-1 15393 Contra Costa North base of Mount Diablo, downstream from Mitchell Canyon parking lot. Comment
  JEPS66120  Rubus ulmifolius var. inermis Pat Watters 1971-6-9 Contra Costa vacant lot at Ferry and Green Streets Martinez Comment
  CAS-BOT-BC158773  Rubus ursinus Walter Knight; Joanne Dean 1978-8-14 3167 Contra Costa Browns Island Comment
  CAS-BOT-BC158774  Rubus ursinus Roxana S. Ferris 1924-4-13 4079 Contra Costa Mitchell Canyon, Mt. Diablo Comment
  UC1328160  Rumex acetosella Olive Dyer 1937-4-4 262 Contra Costa hilltop above Trituros canyon tributary; Wildcat Canyon Comment
  CAS-BOT-BC421736  Rumex conglomeratus Walter Knight 1979-6-15 3379 Contra Costa Botany Cove, Browns Island. Comment
  UC692070  Rumex crispus Mary L. Bowerman 1930-10-4 478 Contra Costa Maple Spring Mount Diablo Comment
  UC1585942  Rumex obtusifolius Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8122 Contra Costa ca 15 air mi sw Stockton (w and adjacent to Clifton Court Forebay); Clifton Court Forebay Comment
  CAS-BOT-BC433711  Rumex occidentalis Walter Knight; Wayne Roderick; Steve Edwards; Bob Doyle 1978-9-19 3261 Contra Costa Brown's Island, South Landing. Comment
  UC692158  Rumex salicifolius var. salicifolius Mary L. Bowerman 1938-6-14 3680 Contra Costa Canyon Nook Mount Diablo 670 Comment
  UC1197438  Rupertia physodes Joseph P. Tracy 1934-4-30 13195 Contra Costa near Lafayette 152 Comment
  RSA721285  Sagina apetala Barbara Ertter, Chris Thayer 1995-4-25 113991 Contra Costa Southeast side of Mt. Diablo NE of Danville; Devil s Slide area of Sycamore Canyon. 305 Comment
  UC692535  Sagina decumbens subsp. occidentalis Mary L. Bowerman 1933-5-8 2028 Contra Costa w. end of second small flat n. of Rock City Camp Comment
  UC2028181  Sagina decumbens subsp. occidentalis Barbara Ertter 1998-5-3 16037 Contra Costa Above SW fork of Pine Creek at southwest base of Mount Diablo. Comment
  SEINET10946617 Image available Sairocarpus elmeri Adolph D. E. Elmer Elmer 4809 Contra Costa Comment
  UC768753  Salicornia virginica R. F. Hoover 1937-8-31 2706 Contra Costa Byron Hot Springs Comment
  RSA771186  Salicornia virginica Barbara Ertter, Elizabeth Neese 1988-10-15 7974 Contra Costa Salicornia marsh west of I-580 in El Cerrito, west side along Rydin Road north of Central Avenue. Comment
  CAS-BOT-BC129909  Salix bonplandiana Alice Eastwood 1921-4-18 10305 Contra Costa Antioch Comment
  POM181455  Salix exigua I. L. Wiggins 1930-4-18 4587 Contra Costa Jersey Island. Comment
  UC650583  Salix exigua var. hindsiana Ira L. Wiggins 1930-4-18 4587 Contra Costa levee banks Jersey Isl. Comment
  CAS-BOT-BC107859  Salix gooddingii Walter Knight 1978-8-27 3195 Contra Costa Along reservoir's edge. Contra Loma Regional Park - Sierra Nevada 30 Comment
  CAS-BOT-BC107875  Salix gooddingii Ira L. Wiggins 1930-4-18 4591 Contra Costa Jersey Island Comment
  POM167733  Salix laevigata H. P. Chandler 1901-3-22 859 Contra Costa Pacheco. Comment
  SJSU6174  Salix laevigata C. O. Dudley 1966-4-4 74 Contra Costa Reliez Valley, Briones Hills, N of Lafayette Comment
  UC692053  Salix laevigata Mary L. Bowerman 1935-10-26 3348 Contra Costa creek bottom at road junction Mt. Diablo 640 Comment
  UC692054  Salix laevigata Mary L. Bowerman 1935-5-30 3085 Contra Costa by Donner Canyon stream Mt. Diablo 161 Comment
  CDA39005  Salix lasiolepis D. G. Kelch 2007-4-29 7 .208 Contra Costa Carquinez Strait; Richmond; Chevy s Hill N. Hilltop Dr. Comment
  JEPS77014  Salix lasiolepis Robert M. Lloyd 1963-3-17 2141 Contra Costa 0.5 mi e of intersection of Grizzly Peak Rd. and Skyline Drive (on Skyline (across from 7090 Skyline), Huckleberry trail) Comment
  UC2032847  Salix lasiolepis Doran, Andrew Scott 2012-3-20 718 Contra Costa Southern part of Brooks Island, old quarry near gravel conveyer belt and grind house. Comment
  UC1196648  Salix lasiolepis Joseph P. Tracy 1903-10-30 1993 Contra Costa Woolsey Canyon Region about San Francisco Bay, Berkeley Hills (branch) 152 Comment
  UC499339  Salix lasiolepis Mary L. Bowerman 1933-3-25 1777 Contra Costa back of Diablo Stock Farm; Stone Valley, Emmons<?> Canyon 274 Comment
  CAS-BOT-BC107366  Salix lasiolepis var. lasiolepis Walter Knight; Joanne Dean 1978-8-14 3117 Contra Costa Browns Island 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-BC129556  Salix lasiolepis var. lasiolepis Mary L. Bowerman 1932-2-13 1087 Contra Costa By Alamo Creek (West Branch) - Mount Diablo 289 Comment
  JEPS95226  Salix scouleriana Stephen W. Edwards 1995-10-20 Contra Costa Round Top, W flank Robert Sibley Volcanic Regional Preserve Comment
  JEPS59865  Salsola tragus W. L. Jepson 1923-10-4 10212 a Contra Costa orchards near Antioch Comment
  JEPS79398  Salsola tragus Edward Lee with Annetta Carter 1935-8-17 1635 Contra Costa Antioch sand dunes Comment
  CAS-BOT-BC220706  Salvia D. M. Curran 1882-8-2 s.n. Contra Costa Antioch Comment
  JEPS62550  Salvia carduacea Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  SEINET7718207  Salvia carduacea Chesnut, Drew 1889-4-18 Contra Costa Antioch Comment
  JEPS62662  Salvia columbariae Mrs. E. L. Mossman 1931-4-21 149 Contra Costa Grizzly Peak; Berkeley Hills 487 Comment
  UC1124728  Salvia columbariae C. M. Belshaw 1936-5-8 2054 Contra Costa se slope Mt. Diablo; Mt. Diablo Quad. 990 Comment
  UC691727  Salvia columbariae Mary L. Bowerman 1930-6-7 290 Contra Costa Mount Diablo Comment
  POM300998  Salvia columbariae Mary L. Bowerman 1933-5-2 1942 Contra Costa Below Pioneer Camp, Mount Diablo. Chaparral- burn (1931) 762 Comment
  JEPS62735  Salvia mellifera W. L. Jepson 1899-4 14949 Contra Costa Las Trampas Ridge Comment
  JEPS62740  Salvia mellifera unknown 1919-6-8 8330 Contra Costa Mt. Diablo San Francisco Bay (vicinity of San Francisco Bay) Comment
  SEINET3224512 Image available Salvia mellifera Lewis S. Rose 1941-3-22 41057 Contra Costa Mt. Diablo. 610 Comment
  UC25730  Salvia mellifera H. N. Bolander Apr 1866 6317 Contra Costa Mount Diablo Comment
  UC32598  Salvia mellifera Chesnut and Drew 1889-4-16 Contra Costa Summerville Comment
  UC25745  Salvia spathacea F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  UC2027930  Salvia spathacea Barbara Ertter with Dorothy Frantz 2001-5-10 17641 Contra Costa Diablo Foothills Regional Park, Pine Canyon a few hundred yards above check dam. Comment
  UC2029120  Salvia spathacea Barbara Ertter 2000-10-26 17549 Contra Costa west side Mount Diablo, Stage Road in lower Pine Canyon, on top of steep cut on west side of road opposite Castle Rock. Comment
  JEPS12714  Sambucus mexicana Katharine Brandegee 1907-6-16 Contra Costa Antioch Comment
  UCR16102  Sambucus mexicana Rex Sanders 1973-5-22 s.n. Contra Costa San Francisco Bay Region, El Sobrante, wash crossing Valley View Rd. at corner with Jo-Lin Ct. 45 Comment
  CAS-BOT-BC238632  Sambucus nigra subsp. caerulea Alice Eastwood 1915-5-30 4548 Contra Costa Mt. Diablo Comment
  CHSC21630  Sanicula bipinnata Willis Ball 1975-3-9 495 Contra Costa Contra Loma Regional Park. In area #8. At the peak of a large hill ca. 560 yds s of main parking lot ca. 800 yds w of Contra Loma Blvd. 152 Comment
  JEPS100132  Sanicula bipinnata G. Smick GAS 90 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA471428  Sanicula bipinnata H. de Forest 1930-4-6 s.n. Contra Costa SE of Mortoville, Small coal mine ravine. 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
  RSA0033930  Sanicula crassicaulis Barbara Ertter, Richard K. Brummitt 1998-5-6 16087 Contra Costa Lower Donner Canyon Road on north base of Mount Diablo, ca. 1/2 miles south of Donner cabin site. 304 Comment
  UC579860  Sanicula crassicaulis Annetta Carter 1936-4-19 1123 Contra Costa San Francisco Bay, Red Rock Red Rock; San Francisco Bay, Red Rock Comment
  UC2028121  Sanicula crassicaulis Barbara Ertter with Richard K. Brummitt 1998-5-6 16087 Contra Costa Lower Donner Canyon Road on north base of Mount Diablo, ca 1/2 miles south of Donner cabin site. Comment
  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
  UC2028089  Sanicula saxatilis Barbara Ertter, Tony Morosco 1998-4-12 15996 Contra Costa Base of Mount Olympia on north side of Mount Diablo, talus above quarry NE of Olympia Trail. Comment
  UC566823  Sanicula tuberosa H. L. Mason 1929-3-15 5049 Contra Costa Nortonville Comment
  SEINET238193 Image available Sasa borealis Beecher Crampton 1966-10-18 7815 Contra Costa CULTIVATED ; Kensington Berkeley Hills Blake Garden UC Berkeley Dept. of landscape architecture. Comment
  JEPS99950  Saxifraga californica S. O'Neil 2003-2-25 SEO 8 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1057454  Scandix pecten-veneris G. Thomas Robbins 1937-4-25 138 Contra Costa e of La Vista Comment
  UCD128067  Scandix pecten-veneris Morris Halperin 1929-4-21 s.n. Contra Costa Morago Valley. Comment
  UCD50078  Schoenoplectus acutus var. occidentalis M. Wiesendanger 1926-6-9 1568 Contra Costa Common Tule. Richmond, Cal. 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
  CDA32274  Scirpus maritimus G. F. Hrusa, D. Crowe, R. York 1998-7-17 14724 Contra Costa Sacramento Delta; Colony in bottom of now dry drainage/wash through disturbed grasslands at E end of Dow Chemical property. Site clearly wet earlier in season, but w/out standing water at this time. Comment
  SEINET3914709  Scirpus olneyi K. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4978 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough. SE portion of Bethel Slough.; 0 610 Comment
  UC2032823  Scrophularia californica Doran, Andrew Scott 2012-3-20 693 Contra Costa North end of Brooks Island along ridge overlooking artificial spit, southwest of caretakers residence. Comment
  UC691603  Scrophularia californica Mary L. Bowerman 1933-4-15 1855 Contra Costa canyon s of Arroyo del Cerro Mt Diablo Comment
  JEPS100143  Scrophularia californica subsp. californica G. Smick 2003-4-3 GAS 122 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CHSC39483  Scutellaria tuberosa Tyler Williams 1984-4-18 17 Contra Costa In 10 yd radius of site 4 at Juniper Camp on Summit Rd. in Mount Diablo State Park. 853 Comment
  UC536014  Scutellaria tuberosa Laurence S. Jones 1934-4-8 56 Contra Costa approximately 3 mi surface distance from peak of Mount Diablo 609 Comment
  UC565460  Scutellaria tuberosa Herbert L. Mason 1928-4-15 4342 Contra Costa top of Moraga Ridge Comment
  UC691405  Scutellaria tuberosa Mary L. Bowerman 1931-3-29 626 Contra Costa Mount Diablo, Cave Point Cave Point; Mount Diablo, Cave Point Comment
  RSA0055044  Scutellaria tuberosa Jim Shevock 1971-4-7 916 Contra Costa Mt. Diablo St. Park. 548 Comment
  OBI75155  Senecio aronicoides David J. Keil 2011-5-29 31036 Contra Costa Mount Diablo State Park. Vicinity of Juniper Campground 900 Comment
  UC35993  Senecio hydrophilus Jos. Burtt Davy 1900-6-7 6669 Contra Costa near Martinez Comment
  JEPS37621  Senecio sylvaticus W. L. Jepson 1921-5-22 9201 Contra Costa Mt. Diablo, summit Mt. Diablo 1173 Comment
  CHSC23334  Senecio vulgaris Willis Ball 1975-2-23 435 Contra Costa Contra Loma Regional Park. In area #1. Ca. 25 yds e of restroom facilities at s end of lake. 30 Comment
  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
  UC407393  Senecio vulgaris Ira L. Wiggins 1930-4-18 4597 Contra Costa n end Jersey Island; n end Jersey Island Comment
  UC651289  Senecio vulgaris Ira L. Wiggins 1930-4-18 4597 Contra Costa n end Jersey Island Comment
  JEPS48264  Sequoia sempervirens K. D. Jones 1908-4-5 Contra Costa Redwood Peak Comment
  UC1134197  Sequoia sempervirens R. W. Lundh 1933-3-1 205 Contra Costa 1/2 mi sw Redwood Peak; Concord Quadrangle Comment
  UC1543053  Sequoia sempervirens Donald G. Nelson 1938-11-6 583 Contra Costa w Moraga (e slope of ridge below water storage tank); Moraga Ridge Comment
Read comments Jan 25 2008
  CAS-BOT-BC80263  Sequoia sempervirens Paul F. Covel 1938-2-20 s.n. Contra Costa Pinehurst 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
  UCD92599  Setaria parviflora John Thomas Howell; Gordon H. True 1972-6-29 48933 Contra Costa Byron Hot Springs. Road southeast of Byron. Comment
  RSA0029367  Setaria viridis Barbara Ertter, Mary Bowerman, Lisa Schultheis 1996-7-5 14921 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  UC2012980  Setaria viridis Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14921 Contra Costa Northwest base of Mt. Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  JEPS127099  Sherardia arvensis Lowell Ahart, Josephine Guardino 2016-4-19 20802 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  UC1795725  Sherardia arvensis Barbara Ertter, Mary Bowerman, Lisa Schultheis 1995-3-31 13941 Contra Costa Mount Diablo State Park, lower end of Mitchell Canyon south of Clayton, open oak woodland/grassland open flat area on east side of stream not far from trail head. 182 Comment
  UC1046442  Sidalcea malviflora subsp. laciniata Alex D. Hawkes and R. Bacigalupi 1951-4-21 4771 Contra Costa meadow near Walnut Creek; Meadow near Walnut Creek Comment
  UC72569  Silene antirrhina Chesnut and Drew 1889-4-16 Contra Costa Clayton Comment
  JEPS111791  Silene gallica D. G. Kelch 2005-5-13 05 .242 Contra Costa Martinez. South of oil refinery along Railroad tracks in fragment of habitat 28 Comment
  UC691376  Silybum marianum Mary L. Bowerman 1930-6-3 233 Contra Costa West Road 1.9 mi from entrance Mount Diablo (= North Road); Mount Diablo Comment
  UCR16901  Silybum marianum M. Wexler 1973-5-22 s.n. Contra Costa El Sobrante, across the street from the intersection of Jo-lin Ct. and Valley View Rd. 45 Comment
  SEINET10760843  Silybum marianum Bonnie C. Templeton 1962-6-24 Templeton s.n. Contra Costa on the road to Mt. Diablo Comment
  CAS-BOT-BC74934  Sinapis arvensis Ira L. Wiggins 1930-4-18 4611 Contra Costa Jersey Island. Comment
  UC2028577  Sinapis arvensis Barbara Ertter, Holly Forbes 1997-4-20 15548 Contra Costa North base of Mount Diablo, trail to Back Creek from Mitchell Canyon trailhead. Comment
  UC2070554  Sinapis arvensis Barbara Ertter 2002-6-22 17963 Contra Costa Clayton Oak Road near Rialto Road, east of Donner Canyon at north base of Mount Diablo. Comment
  CAS-BOT-BC75281  Sisymbrium officinale Mary L. Bowerman 1935-5-1 2939 Contra Costa Mount Diablo. West road 2 miles from entrance, across the creek. Comment
  CDA3848  Sisymbrium orientale J. Simmen 1973-3-2 Contra Costa Pittsburgh. 0 Comment
  UC2070555  Sisymbrium orientale Barbara Ertter with David Gowen and Mike Park 2004-4-13 18349 Contra Costa Black Diamond Mines Regional Park south of Pittsburg, River View Loop Trail at N end of ridge E of Sidney Flat Headquarters. Comment
  SEINET8887765  Sisyrinchium bellum H. E. Hodge 1956-4-7 21 Contra Costa 2 miles north of Orinda 61 Comment
  UC2070662  Sisyrinchium bellum Barbara Ertter 2002-5-16 17861 Contra Costa Richmond Field Station (UC-Berkeley). Comment
  JEPS112505  Smilacina racemosa A. G. Murdock 2004-4-30 245 Contra Costa Vaca Canyon 165 Comment
  UC2032802 Image available Solanum furcatum Doran, Andrew Scott 2012-3-20 672 Contra Costa Brooks island loading dock, North side of island. Comment
  UC1050776  Solanum lanceolatum N. Floy Bracelin 1942-6-21 2149 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  CAS-BOT-BC83606  Solanum umbelliferum J. McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  UC2042781  Solanum umbelliferum Barbara Ertter with Travis Columbus 1990-6-10 9109 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill, on Spengler Trail NE of Briones Peak Comment
  UC523543  Solanum umbelliferum David D. Keck 1933-11-2 2619 Contra Costa 1 mi se of Oakley Comment
  UCD38575  Solanum umbelliferum Beecher Crampton 1956-5-14 3398 Contra Costa Headwaters of Marsh Creek, southeastern of Mt. Diablo. 640 Comment
  RSA29619  Solanum umbelliferum Joseph A. Ewan 1934-1-14 8163 Contra Costa Near west rim of Wildcat Creek, back of Berkeley. Comment
  UCD127020  Solanum umbelliferum Laurence S. Jones 1934-4-8 s.n. Contra Costa Mount Diablo. 609 Comment
  JEPS78880  Solidago velutina subsp. californica Edward Lee 1936-12-12 2608 Contra Costa s Berkeley Country Club Comment
  UC1199320  Solidago velutina subsp. californica Joseph P. Tracy 1932-9-10 10788 Contra Costa e Pinole (head of Franklin Canyon); North Coast Ranges, head of Franklin Canyon 152 Comment
  UC691808  Solidago velutina subsp. californica Mary L. Bowerman 1930-8-24 434 Contra Costa Mitchell Canyon , Mitchell Canyon (Mount Diablo) Comment
  CHSC116656  Soliva sessilis Lowell Ahart; Josephine Guardino 2016-4-19 20768 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides of the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  JEPS100170  Soliva sessilis G. Smick 2003-4-8 GAS 123 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2028128  Soliva sessilis Barbara Ertter with Richard K. Brummitt 1998-5-6 16080 Contra Costa Base of Mitchell Rock Trail on north base of Mount Diablo. Comment
  UC2028287  Sonchus asper Barbara Ertter 1998-6-20 16235 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Alkali Pond at Wiget Lane entrance. Comment
  CHSC23344  Sonchus oleraceus Willis Ball 1975-3-2 468 Contra Costa Contra Loma Regional Park. In area #5. On the w side of a hill in area #5 ca. 10 yds. e of water on e side of lake. 32 Comment
  CHSC75065  Sonchus oleraceus Roger Thom 1987-5-26 22 Contra Costa 1100 block of Hillside Ave. Walnut Creek. Roadside. 36 Comment
  UC606734  Sonchus oleraceus Edward Lee 1936-4-19 1955 Contra Costa ne shore Red Rock (San Francisco Bay); , ne shore Red Rock Comment
  CAS-BOT-BC374592  Sonchus oleraceus Ira L. Wiggins 1930-4-18 4608 Contra Costa Jersey Island Comment
  CAS-BOT-BC236611  Spartina foliosa John Thomas Howell 1932-10-8 10793 Contra Costa Mouth of Rodeo Creek Comment
  JEPS111779  Spergula arvensis A. G. Murdock 2004-3-5 214 Contra Costa Martinez - Rankin Open Space Along fire road at north end of park 80 Comment
  UC2028042  Spergula arvensis subsp. arvensis Barbara Ertter 1998-3-1 15925 Contra Costa Diablo Foothills Regional Park, Ridge Trail on ridge east of Old Borges Ranch. Comment
  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
  UC1563860  Spergularia marina Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8135 Contra Costa alkali sink w and adjacent to Clifton Court Forebay (ca 15 air mi sw of Stockton) 0 Comment
  UC1618131  Spergularia marina Barbara Ertter 1994-5-17 12784 Contra Costa Martinez, on waterfront Martinez Comment
  RSA0029285  Spergularia marina Barbara Ertter, John Ginochino, Mary Bowerman 2001-5-8 17630 Contra Costa Northwest flank of Mount Diablo, tributary of Galindo Creek on south side of knoll SW of Mount Zion. Comment
  SFV1240  Spergularia marina J. M. Tucker 1963-4-12 3687 Contra Costa West side of Holey Road, 3 miles southeast of Byron. Comment
  CHSC116606  Spergularia rubra Lowell Ahart; Josephine Guardino 2016-4-19 20775 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides of the dirt roads, 1.8 mile (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
  UC1618138  Spergularia rubra Barbara Ertter with Tony Morosco 1996-1-15 14545 Contra Costa on road to Frog Pond from Curry Point (se side Mount Diablo, below Sheepherder (Chase) Pond); Mount Diablo Comment
  UC1948952  Spergularia villosa William J. Ferlatte, L. Maynard Moe 1970-4-27 1258 Contra Costa San Francisco Bay: Red Rock Island Comment
  NY222084  Sphaeralcea fasciculata var. elmeri A. D. E. Elmer 06 1903 4395 Contra Costa Mt. Diablo Comment
  UC1795653  Stachys ajugoides var. rigida Barbara Ertter, Brad Olson 1994-5-7 12756 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  POM300999  Stachys bullata Mary L. Bowerman 1933-5-18 2119 Contra Costa Mount Diablo, Blackberry Spring. Comment
  SEINET5576095  Stachys bullata H. S. Gentry 1931-1 50 Contra Costa Collected near Buckle Point Mt. Diablo. Comment
  UC2055621  Stachys pycnantha Joseph Andorfer Ewan 1933-10-15 8043 Contra Costa Mt. Diablo. 1066 Comment
  UC1795669  Stachys pycnantha Barbara Ertter, Kristin Ertter 1995-7-11 14484 Contra Costa West side of Mt Diablo SW of Walnut Creek. 182 Comment
  SJSU10595  Stebbinsoseris heterocarpa W. A. Chappell 1963-4-8 Contra Costa Mt Diablo foothills 3 mi NE of Walnut Cr Comment
  CAS-BOT-BC374777  Stebbinsoseris heterocarpa Brandegee No date on label s.n. Contra Costa Antioch Comment
  UC2028208  Stebbinsoseris heterocarpa Barbara Ertter 1998-5-3 16076 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, near Wall Point. Comment
  UC407394  Stellaria media Ira L. Wiggins 1930-4-18 4598 Contra Costa n end Jersey Island Comment
  CAS-BOT-BC386943  Stellaria media Ira L. Wiggins 1930-4-18 4598 Contra Costa N. end of Jersey Island Comment
  CDA33818  Stellaria nitens D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .114 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  UC2070629  Stellaria nitens Barbara Ertter with Joanne Kerbavaz, David Gowen, Mike Park and Victoria Seidman 2004-4-20 18362 Contra Costa Eagle Peak Trail on east side of Twin Peaks, north side of Mount Diablo. Comment
  UC2028259  Stellaria pallida Barbara Ertter 1999-6-12 16721 Contra Costa Knobcone Point Road on south side of Mount Diablo, burned chamissal at head of NE fork of Sycamore Creek. Comment
  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
  RSA0027412  Stenotaphrum secundatum Barbara Ertter, Richard K. Rabeler, Tony Morosco 1997-6-10 15669 Contra Costa Martinez Regional Shoreline, south edge of Carquinez Strait. On path to bridge. Comment
  UC2028477  Stipa lepida Barbara Ertter with Richard K. Brummitt 1998-5-6 16104 Contra Costa Point San Pablo west of Richmond, crest of road to yacht harbor 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
  SACT002407  Stipa setigera P. Kennedy 1914-3-15 Contra Costa Comment
  UC691145  Streptanthus albidus subsp. peramoenus Mary L. Bowerman 1935-6-8 3123 Contra Costa North Road 2 mi from North Gate (w of chaparral); Mount Diablo Comment
  SEINET3149300  Streptanthus glandulosus M. S. Baker 1904-6-24 sn Contra Costa Mt. Diablo, halfway to Summit Comment
  UC592151  Streptanthus hispidus H. L. Mason 1929-3-29 5120 Contra Costa Mount Diablo 762 Comment
  RSA755534  Stuckenia filiformis subsp. filiformis Barbara Ertter, Brad Olson, Dianne Lake, Lynne Hosley, Amy Hiss 1991-8-18 10715 Contra Costa Browns Island N of Pittsburg near confluence of Sacramento and San Joaquin rivers opposite Pittsburg Marina. Comment
  UC2028382  Stuckenia pectinata Barbara Ertter 1998-6-20 16251 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Gypsy Flat Pond SW of Old Borges Ranch. Also in Joaquin Pond Comment
  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
  UC2062677  Stuckenia striata Barbara Ertter 2005-8-15 18624 Contra Costa Antioch/Oakley Regional Shoreline, under south end of Antioch Bridge between Antioch and Oakley. Comment
  CAS-BOT-BC422907  Stylomecon heterophylla Paul F. Covel 1936-5-17 156 Contra Costa Mt Diablo, on trail summit-north peak. Comment
  CAS-BOT-BC422920  Stylomecon heterophylla James McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  JEPS51560  Stylomecon heterophylla W. L. Jepson 1925-4-26 10683 Contra Costa Black Hills Mt. Diablo; , Black Hills Comment
  JEPS77536  Stylomecon heterophylla Margaret Ely 1978-5-3 Contra Costa n side of Mount Diablo, along Back Creek Back Creek; Mount Diablo, Back Creek 304 Comment
  UC635478  Stylomecon heterophylla H. L. Mason 1928-4-1 4271 Contra Costa hills n Mount Diablo (canyon back of Pittsburg); hills n of Mount Diablo Comment
  CAS-BOT-BC422918  Stylomecon heterophylla W. C. Blasdale 1891-4-26 s.n. Contra Costa Point Isabel Comment
  UC72722  Stylomecon heterophylla Miss Carlotta Case July 1904 Contra Costa Muir Station; beside track 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
  RSA29681  Symphoricarpos albus var. laevigatus Joseph A. Ewan 1936-5-3 9500 Contra Costa Wildcat Creek. Comment
  CAS-BOT-BC269563  Symphoricarpos albus var. laevigatus Volney Rattan 1884-6-1 s.n. Contra Costa Unspecified Comment
  UC1076414  Symphoricarpos albus var. laevigatus Herbert L. Mason 1924-11-23 1158 Contra Costa Cashion Comment
  CAS-BOT-BC269693  Symphoricarpos mollis E. E. Stanford 1930-5-24 1509 Contra Costa Marsh Creek Canyon Comment
  CAS-BOT-BC269694  Symphoricarpos mollis Alice Eastwood 1915-6-21 4726 Contra Costa San Leandro Comment
  CAS-BOT-BC97698  Symphyotrichum chilense D. E. Breedlove 1969-10-18 16717 Contra Costa along the roadbank on Reliez Valley Road at the junction with Gloria Terrace; Lafayette Comment
  CAS-BOT-BC97699  Symphyotrichum chilense Elizabeth McClintock; Stephen Rae 1978-8-3 s.n. Contra Costa Suisun Bay, Antioch Comment
  UC2012972  Symphyotrichum chilense Barbara Ertter with Lisa Schultheis 1996-9-2 15281 Contra Costa Below Knobcone Point Road along path to Devil's Slide southeast of Curry Point. Comment
  UC2046321  Symphyotrichum lanceolatum var. hesperium Barbara Ertter 2000-10-26 17550 Contra Costa West side Mount Diablo, Little Pine Creek near park boundary, just upstream from Falcon Road creek crossing. Comment
  CAS-BOT-BC98039  Symphyotrichum lentum L. R. Abrams 1917-9-24 6860 Contra Costa Near Concord Comment
  UC1594169  Symphyotrichum lentum Jerry Powell 1991-8-15 1613 Contra Costa Antioch National Wildlife Refuge Comment
  UCD150914  Symphyotrichum lentum James A. Neilson Jr. 1972-10-22 s.n. Contra Costa Walnut Creek drainage, west and south of railroad and leves. Elevation estimated using Google Earth by label maker. 3 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
  CAS-BOT-BC98040  Symphyotrichum lentum John Thomas Howell 1978-9-5 53357 Contra Costa Pittsburg Marina Comment
  JEPS111672  Symphyotrichum subspicatum D. G. Kelch 2003-6-22 03 .92 Contra Costa Selby At start of trail on south side in grassland 40 Comment
  CAS-BOT-BC98331  Symphyotrichum subulatum var. parviflorum Walter Knight 1978-8-27 3196 Contra Costa Contra Loma Regional Park, at reservoir's edge. Comment
  CDA37132  Tamarix parviflora Wil Schaub 2012-4-19 PDR# 1641194 Contra Costa Lafayette; 3697 Happy Valley Road. 0 Comment
  UC1301106  Taraxia ovata Helen K. Sharsmith 1962-4-18 4957 Contra Costa Reliez Valley Rd. San Francisco Bay Region 152 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
  UC692142  Thalictrum fendleri var. polycarpum Mary L. Bowerman 1931-4-5 672 Contra Costa by road to Gregory Ranch Mount Diablo Comment
  CAS-BOT-BC88252  Thysanocarpus curvipes John Thomas Howell 1933-5-14 11274 Contra Costa Hills east of Saint Mary's College. Comment
  UC11026  Thysanocarpus curvipes J. Burtt Davy 1895-4-7 886 Contra Costa Antioch Comment
  CAS-BOT-BC88254  Thysanocarpus curvipes John Thomas Howell 1934-4-8 11821 Contra Costa Marsh Creek Road southwest of Brentwood. Comment
  UC11030  Thysanocarpus curvipes subsp. curvipes Brewer 1862-1 Contra Costa Mount Diablo Comment
  UC691140  Thysanocarpus laciniatus Mary L. Bowerman 1931-5-7 805 Contra Costa North Peak ridge Mount Diablo (slightly n of crest, Mount Diablo); , North Peak ridge Comment
  UCD115618  Thysanocarpus laciniatus P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  JEPS108219  Thysanocarpus radians David Gowen 2005-4-30 272 Contra Costa Morgan Territory Regional Preserve. Just east and outside the park along Manzanita Trail. Growing on very rocky east facing slope. Comment
  JEPS9890  Tonella tenella Mary L. Bowerman 1935-5-18 3023 Contra Costa Mount Diablo; nw-facing slope across the road from, and a little e of, the parking area 1066 Comment
  UC691514  Tonella tenella Mary L. Bowerman 1935-5-18 3023 Contra Costa Mount Diablo; nw-facing slope across the road from, and a little e of, the parking area 1066 Comment
  JEPS111507  Torilis arvensis D. G. Kelch 2005-5-13 05 .269 Contra Costa Martinez - South Tall hill in South Martinez and North of I-4 96 Comment
  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
  RSA720806  Torilis nodosa Barbara Ertter, Mary L. Bowerman 1995-6-11 14254 Contra Costa Shell Ridge recreation area southeast of Walnut Creek, bank of Indian Creek above Indian Valley pond 76 Comment
  JEPS63916  Toxicodendron diversilobum W. L. Jepson 1931-4-5 15716 Contra Costa Nortonville n.e. Contra Costa Co., Nortonville Comment
  UC17924  Toxicodendron diversilobum W. H. Brewer 1862-5-10 1068 Contra Costa near Clayton Clayton Comment
  JEPS111933  Tribulus terrestris Dean G. Kelch and Andrew G. Murdock 2004-5-28 AGM 305 Contra Costa Luzon Comment
  JEPS63121  Trichostema lanceolatum W. L. Jepson 1895-9-14 14880 Contra Costa Lafayette Comment
  UC691399  Trichostema lanceolatum Mary L. Bowerman 1930-8-31 450 a Contra Costa Inner Black Hills E of main road Mount Diablo Comment
  UC1328144  Trientalis latifolia Olive Dyer 1937-5-18 349 Contra Costa Wildcat Canyon, Canyon of C. C. C. tributary Wildcat Canyon Comment
  UC575674  Trifolium albopurpureum var. albopurpureum Lewis S. Rose 1935-5-16 35174 Contra Costa Mt. Diablo Comment
  UC147749  Trifolium albopurpureum var. dichotomum Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  UC630749  Trifolium albopurpureum var. dichotomum A. A. Heller 1908-4-17 8903 Contra Costa 3 mi s Antioch (hills) Comment
  UC16604  Trifolium albopurpureum var. olivaceum W. H. Brewer 1862-5-19 1111 Contra Costa n Kirker Pass Comment
  UC16605  Trifolium albopurpureum var. olivaceum W. H. Brewer 1862-4-30 1019 Contra Costa Camp 69 Walnut Creek Comment
  UC1795796  Trifolium albopurpureum var. olivaceum Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14225 Contra Costa Mt. Diablo southeast of Walnut Creek, serpentine knoll ca 1/2 air-mile north of Curry Point. 487 Comment
  UC631264  Trifolium albopurpureum var. olivaceum Mrs. Brandegee May 1907 Contra Costa Antioch Comment
  UC630759  Trifolium albopurpureum var. olivaceum P. B. Kennedy 1925-4-26 Contra Costa above old rd to reservoir; Mt. Diablo Comment
  UC697198  Trifolium barbigerum Mary L. Bowerman 1942-5-24 3843 Contra Costa lower Rock City Camp Mount Diablo, Fossil Ridge 457 Comment
  CDA27906  Trifolium bifidum D. G. Kelch, A. G. Murdock 2005-4-2 5 .105 Contra Costa Carquinez Strait Region; Alhambra Valley. EBMUD land. North of intersection of Alhambra Valley Road and Castro Ranch Road. Comment
  CAS-BOT-BC5352  Trifolium bifidum William Henry Brewer 1862-5-29 1184 Contra Costa Marsh's Ranch, between Monte Diablo and the San Joaquin. Comment
  RSA184980  Trifolium bifidum L. S. Rose 1966-4-22 66030 Contra Costa Donner Canyon, north slope of Mount Diablo, south of Clayton 213 Comment
  CDA27904  Trifolium bifidum var. decipiens D. G. Kelch, A. G. Murdock 2005-5-6 05 -226 Contra Costa Carquinez Strait Region; Franklin Canyon. East of Christie Road. South of Route 4. Comment
  JEPS107019  Trifolium bifidum var. decipiens J. Greenhouse with Kevin Hintsa 2004-4-5 5090 Contra Costa Mt. Diablo, lower summit parking area 1124 Comment
  SBBG29986  Trifolium bifidum var. decipiens J. T. Howell 1933-5-14 11264 Contra Costa hills E of St Mary's College Comment
  UC692243  Trifolium bifidum var. decipiens Mary L. Bowerman 1933-5-21 2155 Contra Costa s Curry Canyon (nera Grape Spring); Mount Diablo Comment
  UC2028209  Trifolium bifidum var. decipiens Barbara Ertter 1998-5-3 16072 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, near Wall Point. Comment
  POM19314  Trifolium ciliolatum Katherine Brandegee s.n. Contra Costa Antioch Comment
  UC400158  Trifolium ciliolatum Ynes Mexia 1929-4-21 2373 Contra Costa Moraga Valley Comment
Read comments Aug 31 2007
  UC692251  Trifolium ciliolatum Mary L. Bowerman 1932-4-27 1363 Contra Costa w Riggs Canyon (Oyster Ridge, s face); Mount Diablo 762 Comment
  UC692253  Trifolium ciliolatum Mary L. Bowerman 1931-4-19 745 Contra Costa below Deer Flat; Mount Diablo Comment
  UC692256  Trifolium ciliolatum Mary L. Bowerman 1933-5-2 1939 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  POM300693  Trifolium ciliolatum Mary L. Bowerman 1933-5-11 2082 Contra Costa Inner Black Hills east of South Road. Comment
  UC33308  Trifolium depauperatum var. amplectens W. C. Blasdale 1891-4-25 Contra Costa Point Isabel Comment
  UC630926  Trifolium depauperatum var. depauperatum P. B. Kennedy 1928-4-19 10049 Contra Costa near Golf Links; Byron Hot Springs Comment
  UC630935  Trifolium depauperatum var. depauperatum P. B. Kennedy 1928-4-19 10049 a Contra Costa Byron Hot Springs, near [golf links] Byron Hot Springs Comment
  PGM3951  Trifolium depauperatum var. depauperatum Vern Yadon 1998-4-26 Contra Costa Byron Hot Springs Rd near Airport, 1/4 mi fr end of Byron Hot Springs Rd Comment
  CHSC22680  Trifolium depauperatum var. truncatum Robert A. Schlising 1962-4-7 2147 Contra Costa Along roads near Antioch Reservoir. Comment
  SEINET7096815  Trifolium depauperatum var. truncatum A. G. Vestal 1985-4-1 s.n. Contra Costa Ca. 1.9 miles west of Byron on the Camino Diablo Road. NAD27, 37? deg. 51' 45ao, -121?_ 40' 26ao (converted to WGS84 decimal degrees) Comment
  UC1795892  Trifolium depauperatum var. truncatum Barbara Ertter, Mary Bowerman et al. 1995-5-7 14046 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, grassy flat, roadside vegetation, clay substrate. Comment
  POM301858  Trifolium depauperatum var. truncatum Mary L. Bowerman 1932-3-23 1125 Contra Costa Oak Grove School junction, between Monument and Concord Comment
  RSA107034  Trifolium depauperatum var. truncatum L. S. Rose 1956-3-19 56004 Contra Costa 2 miles southeast of Byron 8 Comment
  UC2028081  Trifolium depauperatum var. truncatum Barbara Ertter, Tony Morosco 1998-4-12 15988 Contra Costa Base of Mount Olympia on north side of Mount Diablo, open flat below quarry NE of Olympia Trail. Comment
  UC16537  Trifolium fucatum J. Burtt Davy 1900-3-24 6531 Contra Costa Stege Comment
  UC33446  Trifolium fucatum Jos. Burtt Davy 1895-4-13 999 Contra Costa Lafayette Comment
  UC692239  Trifolium fucatum Mary L. Bowerman 1932-5-6 1421 Contra Costa Mitchell Canyon Mount Diablo Comment
  UC70194  Trifolium fucatum J. Burtt Davy 1898-5-1 Contra Costa Region of Mount Diablo, Danville Danville; Region of Mount Diablo, Danville Comment
  UC631617  Trifolium fucatum P. B. Kennedy 1928-4-28 10094 Contra Costa 2 mi from Tunnel (on hwy) Comment
  UCD109005  Trifolium fucatum P. B. Kennedy 1928-4-15 10056 Contra Costa Pinehurst. Comment
  CHSC116604  Trifolium glomeratum Lowell Ahart; Josephine Guardino 2016-4-19 20758 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 1.8 miles (air) northwest of Los VaquerosReservoir Marina, 2.1 miles (air) southwest of Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  JEPS125941  Trifolium glomeratum D. W. Taylor 2001-4-26 17628 Contra Costa Orinda; hill slopes ca 0.3 air miles E of the junction of Bear Creek Road and Camino Pablo Comment
  JEPS127042  Trifolium glomeratum Lowell Ahart, Josephine Guardino 2016-4-19 20758 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  UC1618357  Trifolium gracilentum Barbara Ertter, Chris Thayer 1993-5-7 11712 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 Comment
  UC631031  Trifolium gracilentum Mrs. K. Brandegee May 1907 Contra Costa Antioch Comment
  UC692679  Trifolium gracilentum Mary L. Bowerman 1932-4-27 1389 Contra Costa w Riggs Canyon (Oyster ridge, s face of canyon); Mount Diablo Comment
  UC692691  Trifolium gracilentum Mary L. Bowerman 1932-4-27 1389 Contra Costa w Riggs Canyon (Oyster ridge, s face of canyon); Mount Diablo Comment
  UC2028946  Trifolium gracilentum Barbara Ertter 2003-4-9 18142 Contra Costa Shell Ridge Open Space on west base of Mount Diablo, Upper Buck Trail on SW side of Deer Hill. 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
  CDA29499  Trifolium hirtum D. G. Kelch, Troy MacGregor 2009-5-1 9 .268 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  JEPS100105  Trifolium hirtum G. Smick 2003-4-8 GAS 124 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111084  Trifolium hirtum Lee Echols 2003-3-3 s.n. Contra Costa S of Lark Drive and EPA building within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  UC555619  Trifolium macraei H. L. Mason 1928-4-13 4303 Contra Costa Richmond waterfront Comment
  UC16618  Trifolium microcephalum W. H. Brewer 1862-4-30 1020 Contra Costa Camp 69 Walnut Creek Comment
  UC631555  Trifolium microcephalum P. B. Kennedy 1925-4-25 Contra Costa rd to Sycamore Canyon; Mt Diablo Comment
  UC692244  Trifolium microcephalum Mary L. Bowerman 1932-4-9 1327 Contra Costa e south spur on meridian (small ridge, Inner Black Hills); Mount Diablo Comment
  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
  RSA0033854  Trifolium oliganthum Barbara Ertter 2003-3-28 18135 Contra Costa Round Valley Regional Preserve, mid Hardy Canyon along High Creek. 182 Comment
  UC165547  Trifolium oliganthum Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  UCD35145  Trifolium olivaceum Beecher Crampton 1950-4-22 534 Contra Costa East side of Concord Valley. Comment
  CHSC116629  Trifolium tomentosum Lowell Ahart; Josephine Guardino 2016-4-19 20760 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. On both sides of the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  JEPS127098  Trifolium tomentosum Lowell Ahart, Josephine Guardino 2016-4-19 20760 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  SJSU5771  Trifolium variegatum C. O. Dudley 1966-4-16 Contra Costa Reliez Valley, Briones Hills N of Lafayette Comment
  UC16787  Trifolium variegatum Ivar Tidestrom 1893-4-15 Contra Costa Sheep Island Comment
  CDA29759  Trifolium willdenovii D. G. Kelch, Troy MacGregor 2009-5-1 9 .264 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  JEPS70759  Trifolium willdenovii L. R. Heckard 1971-4-22 2493 Contra Costa e Pinole (rr grade near US Hwy 80 crossing) Comment
  UC1057455  Trifolium willdenovii G. Thomas Robbins 1937-4-17 133 Contra Costa near Point Richmond Comment
  RSA32719  Trifolium willdenovii A. A. Heller 1938-4-9 15017 Contra Costa 3 miles southwest of Antioch. Comment
  SBBG40328  Trifolium willdenovii W. J. Dress 1951-5-9 3311 Contra Costa just W of Orinda Comment
  JEPS112458  Triglochin striata D. G. Kelch 2003-8-13 03 .116 Contra Costa Martinez Marsh 0 Comment
  UC508  Triglochin striata Jos. Burtt Davy 1900-6-7 6676 Contra Costa Martinez Comment
  CAS-BOT-BC451964  Triglochin striata Walter Knight; I. Knight; J. T. Howell; E. McClintock; S. Rae; B. Doyle 1978-9-5 3213 Contra Costa Botany Cove, Browns Island. Comment
  UC367109  Trillium ovatum J. G. Lemmon Apr 1878 Contra Costa [Mount Diablo] Comment
  JEPS11780  Triodanis biflora Mary L. Bowerman 1933-5-18 2130 Contra Costa w Blackberry Spring (Mount Diablo); , w of Blackberry Spring Comment
  UC691568  Triphysaria eriantha subsp. eriantha Mary L. Bowerman 1931-4-4 650 Contra Costa North Rd = near west road (between 1 and 4.5 mi from entrance) Mount Diablo Comment
  UC1562647  Triphysaria pusilla Barbara Ertter with John Little 1989-4-2 8105 Contra Costa Hillside Park El Cerrito (El Cerrito, level portions of old road); , Hillside Park Comment
  JEPS102892  Trisetum canescens Barbara Ertter with Susan D'Alcamo 1998-6-12 16203 Contra Costa upper Curry Canon halfway between Knobcone Point Road and Sheepherder Springs Road Mount Diablo 487 Comment
  CAS-BOT-BC521582  Triteleia hyacinthina Mary L. Bowerman 1938-6-3 3651 Contra Costa Rock City 518 Comment
  UC2027806  Triteleia hyacinthina Barbara Ertter with Holly Forbes 1997-4-20 15543 Contra Costa North base of Mount Diablo, trail to Back Creek from Mitchell Canyon trailhead. Comment
  JEPS100058  Triteleia laxa G. Smick 2003-4-10 GAS 136 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC635732  Triteleia laxa H. L. Mason 1929-3-15 5062 Contra Costa about 5 mi from Brentwood (Marsh Creek Road) Comment
  CAS-BOT-BC526326  Triteleia laxa John Thomas Howell 1931-5-12 6468 Contra Costa Oakland Hills Comment
  CAS-BOT-BC200472  Triticum aestivum Alice Eastwood 1921-4-18 10314 Contra Costa Antioch Comment
  CAS-BOT-BC67401  Tropidocarpum gracile Alice Eastwood 1914-2-24 3742 Contra Costa Antioch. Comment
  SEINET3404423 Image available Tropidocarpum gracile Lewis S. Rose 1934-3-21 34066 Contra Costa Clayton, 6 miles East of Clayton Comment
  UC673338  Tropidocarpum gracile H. L. Mason 1929-3-31 5148 Contra Costa in pastures Briones Valley Comment
  CAS-BOT-BC80208  Tsuga mertensiana subsp. grandicona Phil Blumberg; M. Polland; R. Barnet; J. MacCarthy 1962-8-7 s.n. Contra Costa Bryan Meadows Comment
  UC1241764  Typha domingensis Malcolm A. Nobs and S. Galen Smith 1949-6-28 877 Contra Costa on road to Martinez about two mi s Crockett Comment
  UC1818859  Typha domingensis Barbara Ertter, Kristin Ertter 1995-7-11 14483 Contra Costa W side of Mount Diablo SW of Walnut Creek, lower end of Pine Pond 182 Comment
  UC1795648  Ulmus minor Barbara Ertter, Rich Rabeler 1994-6-18 12837 Contra Costa Pt. Pinole Regional Shoreline at north end of Richmond; northeast corner of park, near jct. Marsh Trail & Cook's Point Trail. Comment
  CDA32862  Ulmus parvifolia D. G. Kelch 2010-10-5 10 .428 Contra Costa The Delta.; Antioch shoreline. West of Fulton shipyard. Comment
  CDA24511  Umbellularia californica D. G. Kelch, A. G. Murdock 2003-2-7 03 .037.B Contra Costa Carquinez Strait Region; Franklin Canyon. Comment
  CHSC22748  Umbellularia californica Robert A. Schlising 1962-2-21 2078 Contra Costa Berkeley-Oakland Hills of westernmost part of county. Comment
  JEPS75485  Umbellularia californica P. F. Yorks 1974-2-3 108 Contra Costa 1.6 km s of Bear Creek Road (n of Briones Reservoir on Hampton Road in Hampton Road Natural Reserve); Hampton Road Natural Reserve 170 Comment
  SEINET3559460 Image available Umbellularia californica Lewis S. Rose 1933-10-22 33386 Contra Costa Wildcat Canyon. Comment
  UC1177379  Umbellularia californica Peter H. Raven 1950-2-19 1353 Contra Costa above Canyon Grocery at ne end of Moraga Ridge Moraga Ridge 213 Comment
  SEINET12093234  Umbellularia californica Unknown 1983-1 4965 Contra Costa Castro Ranch Road between Hillside St. and Alhambra Valley Road. Plant survey for Douglas Carter Comment
  SEINET3150246  Uropappus lindleyi T. S. Brandegee sn Contra Costa Antioch Comment
  UC691783  Uropappus lindleyi Mary L. Bowerman 1957-5-2 1957 Contra Costa Pioneer Camp Mount Diablo 762 Comment
  UC691797  Uropappus lindleyi Mary L. Bowerman 1931-4-4 632 Contra Costa two mi by road from North Gate Mount Diablo (Mount Diablo); Mount Diablo 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
  CAS-BOT-BC403927  Urtica dioica subsp. gracilis Joseph Andorfer Ewan 1934-1-14 8160 Contra Costa Wildcat Canyon, one mile below ranch house 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
  SBBG5572  Vaccinium ovatum J. M. Tucker 1946-3-14 1376 Contra Costa 150 yards S of summit of Redwood Peak Comment
  UC1050825  Verbascum N. Floy Bracelin 1943-6-20 1346 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1050820  Verbascum olympicum N. Floy Bracelin 1943-5-30 1352 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CDA9519  Verbena brasiliensis D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .248 Contra Costa CA Delta; Along the old San Joaquin River Channel, S of Clifton Court Forebay and SE of Byron. Comment
  UC1192064  Verbena hastata Malcolm A. Nobs and S. Galen Smith 1949-7-8 942 Contra Costa 4 mi n Kingston (Otto's Black Bass Resort); Otto's Black Bass Resort Comment
  UCD125942  Verbena hastata Malcolm A. Nobs; S. Galen Smith 1949-7-8 942 Contra Costa Otto's Black Bass Resort, 4 miles N of Kingston. Comment