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

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

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A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  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
  UC1779710  Acacia dealbata Rudolf Schmid 1997-5-21 1997 -13 Contra Costa Hillside Natural Area, El Cerrito; NW of King Ct. entrance. 175 Comment
Read comments
Mar 25 2010
  UC1050222  Acacia dealbata N. Floy Bracelin 1942-2-1 1898 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS87956  Acacia melanoxylon Barbara Ertter 1991-5-12 9815 Contra Costa in sw corner El Cerrito (Point Isabel Regional Shoreline, along old railroad right-of-way between bay and salicornia marsh); San Francisco Bay, Point Isabel Regional Shoreline Comment
  UC1607582  Acacia melanoxylon Barbara Ertter 1991-5-12 9815 Contra Costa in sw corner of El Cerrito (Point Isabel Regional Shoreline, along old railroad right-of-way between bay and salicornia marsh, on San Francisco Bay); San Francisco Bay, Point Isabel Regional Shoreline Comment
  UC1050943  Acacia pycnantha N. Floy Bracelin 1942-8-16 2256 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC331612  Acer macrophyllum Paul F. Covel 1940-4-21 s.n. Contra Costa Las Trampas Canyon Comment
  RSA113974  Acer macrophyllum Peter H. Raven 1957-4-11 10621 Contra Costa Curry Canyon 3.4 miles south of Recreation Ground Comment
  UC400149  Acer macrophyllum Ynez Mexia 1929-4-21 2383 Contra Costa Moraga Valley Comment
  SEINET12234133  Acer macrophyllum M. T. Doutt 1930-1 78 Contra Costa Marsh Creek Comment
  JEPS42725  Acer negundo var. californicum W. L. Jepson 1908-8-16 3084 Contra Costa Walnut Creek 22 Comment
  LA210535  Acer negundo var. californicum Annetta M. Carter; 1937-3-28 1227 Contra Costa Moraga Valley, 2.5 mi N of Moraga. 182 Comment
  CAS-BOT-BC334179  Acer negundo var. californicum Mary L. Bowerman 1931-10-23 1063 a Contra Costa Mount Diablo. Riggs Canyon mouth 228 Comment
  JEPS111751  Achillea millefolium D. G. Kelch 2005-4-15 05 .152 Contra Costa Rodeo Creek EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump) 220 Comment
  UC579853  Achillea millefolium Annetta Carter 1936-4-19 1116 Contra Costa hollow e side of island Red Rock; San Francisco Bay Comment
  UC29238  Achillea millefolium W. H. Brewer 1862-5-20 1125 Contra Costa hill north of coal mines Monte Diablo Comment
  UC134230  Achyrachaena mollis Katharine Brandegee 1907-5-3 Contra Costa near Antioch Comment
  UC1733837  Achyrachaena mollis Kay H. Beach 1941-4-30 1081 Contra Costa 5 mi W of Byron; Marsh Creek Road 30 Comment
  UC691544  Achyrachaena mollis Mary L. Bowerman 1931-3-29 627 Contra Costa Cave Point Ridge Comment
  UCD164888  Achyrachaena mollis Henry House 1995-4-30 1995- 7 Contra Costa About 1 km west of Walnut Blvd., ca. 0.5 km south of Marsh Creek Rd. 60 Comment
  CAS-BOT-BC29881  Achyrachaena mollis C. F. Baker 1903-4-27 2795 Contra Costa near Byron Comment
  CAS-BOT-BC29886  Achyrachaena mollis Ira L. Wiggins 1930-4-17 4561 Contra Costa 1 mile east of Mountain Home on road to Byrn Comment
  POM54982  Achyrachaena mollis C. F. Baker 1903-4-27 15565 Contra Costa Byron. Comment
  SEINET10615056  Achyrachaena mollis John T. Middleton 1936-4-18 Middleton 144 Contra Costa Comment
  JEPS127096  Acmispon americanus var. americanus Lowell Ahart, Josephine Guardino 2016-4-19 20761 Contra Costa 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  JEPS112353  Acmispon glaber Dean G. Kelch and Andrew G. Murdock 2004-4-3 04 .054 Contra Costa Crockett - Tormey Headlands, County: Contra Costa; Road cut west of I-80 and Cummings Skyway junction. Comment
  UCD158715  Acroptilon repens James A. Neilson Jr. 1974-8-13 3472 Contra Costa Bradford Island. (Elevation estimated using Google Earth by label maker.) 0 Comment
  CAS-BOT-BC133154  Adenostoma fasciculatum Mrs. Brandegee s.n. Contra Costa Antioch Comment
  SBBG21358  Adenostoma fasciculatum var. fasciculatum V. Haraden 1941-7-18 16 Contra Costa NE slope near Nortonville 121 Comment
  SEINET3868330 Image available Adiantum jordanii Clayton Newberry 1994-4-30 7255 Contra Costa Mount Diablo State Park, trail from Mitchell Cn. Prkng to Donner Cr.; 0 900 Comment
  CHSC22658  Aesculus californica Robert A. Schlising 1965-1-24 2740 Contra Costa North of Briones Reservoir along Hampton Road; 1.1 mi S of Jct with Garcia Ranch Road. Comment
  OBI62809  Aesculus californica John Osborne 1970-11-21 11 Contra Costa 3173 Somerset Dr., Lafayette 76 Comment
  JEPS111761  Agoseris grandiflora var. grandiflora D. G. Kelch 2005-5-13 05 .258-b Contra Costa Martinez - West: along Vista Road ~ 2.5 kiloms West of Martinez 45 Comment
  CAS-BOT-BC15427  Agoseris grandiflora var. grandiflora L. R. Abrams 1921-5-25 8042 Contra Costa Mt. Diablo at spring 4.5 from summit Comment
  UC691805  Agoseris grandiflora var. grandiflora Mary L. Bowerman 1930-6-10 296 Contra Costa near (west road) Mineral Spring Comment
  JEPS36324  Agoseris hirsuta W. L. Jepson 1922-5-26 9673 Contra Costa North Berkeley Hills; Berkeley Hills (North) Comment
  UC585072  Agoseris hirsuta G. L. Stebbins Jr. 1936-5-16 1562 Contra Costa w Berkeley Country Club Comment
  UC691427  Agoseris retrorsa Mary L. Bowerman 1935-5-18 3017 Contra Costa along road near parking area Mount Diablo 1127 Comment
  POM300723  Agrostis Mary L. Bowerman 1933-8-26 2413 Contra Costa Mount Diablo. At and below Lower Canyon Spring. 976 Comment
  UC1618364  Agrostis avenacea Barbara Ertter, Brad Olson 1991-9-28 10831 Contra Costa San Pablo Reservoir between Orinda and El Sobrante (at s. end of reservoir); San Pablo Reservoir 91 Comment
  JEPS400  Agrostis hallii W. L. Jepson 1937-7-2 18447 Contra Costa 0.5 mi w Crokcett Comment
  RSA0029673  Agrostis hallii Barbara Ertter, Dan Norris 1998-7-18 16229 Contra Costa Black Hawk Ridge Road below Knobcone Point Road, south side of Mount Diablo. Comment
  UC2028526  Agrostis hallii Barbara Ertter 1997-11-1 15883 Contra Costa South side Mount Diablo, end of spur road east of Knobcone Point, below powerline crossing at head of Alamo Creek drainage. Comment
  JEPS99592  Agrostis viridis Mary Bowerman 1993-10-22 Contra Costa Mount Diablo, Pine Pond, South side. Comment
  UC692385  Agrostis viridis Mary L. Bowerman 1933-11-4 2462 Contra Costa Alder Creek Springs Mount Diablo 487 Comment
  UC2028230  Ailanthus altissima Barbara Ertter 1998-11-15 16466 Contra Costa North side Mount Olympia on north side Mount Diablo Comment
  JEPS100029  Aira caryophyllea S. O'Neil 2003-5-1 SEO 23 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2028387  Aira caryophyllea var. caryophyllea Barbara Ertter 1998-6-20 16257 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Costanoan Trail on north side of central ridge, edge of road through woodland Comment
  CAS-BOT-BC175360  Allenrolfea occidentalis J. Burtt Davy 1898-5-1 s.n. Contra Costa Byron Springs, Mt. Diablo region Comment
  CAS-BOT-BC175365  Allenrolfea occidentalis E. M. Zeile 1921-9-9 19 Contra Costa Byron Hot Springs Comment
  UC116546  Allenrolfea occidentalis K. Brandegee Oct. 1887 Contra Costa Antioch Comment
  UC3090  Allium acuminatum Edw. L. Greene 1892-1 Contra Costa Mt. Diablo Comment
  POM181433  Allium crispum I. L. Wiggins 1930-4-17 4565 Contra Costa Near Mountain House, Altamont Pass. Comment
  RSA367158  Allium falcifolium L. S. Rose 1935-5-16 35164 Contra Costa Mt. Diablo. Comment
  CAS-BOT-BC469112  Allium falcifolium L. R. Abrams 1921-5-25 8038 Contra Costa Mt. Diablo, Summit Comment
  CDA2750  Allium neapolitanum D. G. Kelch, A. G. Murdock 2004-4-11 4 .073 Contra Costa Carquinez Strait; Hillside above Rolf Drive, Crockett. Lower Crolona Heights. Comment
  JEPS47586  Allium serra W. L. Jepson 1943-5-27 20841 Contra Costa n side of Black Hills Mt. Diablo, Black Hills Comment
  UC767477  Allium serra R. F. Hoover 1938-3-5 2818 Contra Costa mouth of Kirker Creek canyon Kirker Creek canyon Comment
  CAS-BOT-BC475532  Allium serra John Thomas Howell 1933-5-14 11284 Contra Costa Hills east of St. Mary's College Comment
  CAS-BOT-BC475538  Allium serra Mary L. Bowerman 1930-6-18 338 Contra Costa Rock City Canyon; Mount Diablo Comment
  UCD138633  Allium serra E. W. Jones 1934-4-8 59 Contra Costa Mt. Diablo. Comment
  UCD138636  Allium serra Cliff Low 1978-5-19 20 Contra Costa Back Canyon Creek, east of Eagle Peak on Mount Diablo. 304 Comment
  JEPS112502  Allium triquetrum D. G. Kelch 2003-3-21 03 .42 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  UC692022  Allium unifolium Mary L. Bowerman 1932-5-6 1425 Contra Costa near road, Mitchell Canyon Mt. Diablo, Mitchell Canyon 243 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
  CAS-BOT-BC170927  Alnus rhombifolia Mary L. Bowerman 1931-10-13 1058 Contra Costa Mount Diablo. Alamo Canyon 259 Comment
  CAS-BOT-BC170931  Alnus rhombifolia Walter Knight 1965-3-1 910 Contra Costa Antioch Dunes, along water's edge - Carquinez Straights Comment
  CAS-BOT-BC170934  Alnus rhombifolia Alice Eastwood 1921-4-18 s.n 10294 Contra Costa Antioch Comment
  JEPS58619  Alnus rhombifolia W. L. Jepson 1899-2-26 Contra Costa Wild Cat Creek Berkeley Hills Comment
  UC1818942  Alnus rhombifolia Barbara Ertter, Chris Thayer 1995-4-25 13987 Contra Costa Southeast side of Mt. Diablo northeast of Danville; shade of oak forest on Sycamore Creek near junction of path from Knobcone Point Rd. 396 Comment
  UC34816  Alnus rhombifolia W. C. Blasdale 1896-2-29 Contra Costa Clayton Comment
  CAS-BOT-BC137971  Alopecurus saccatus Alice Eastwood 1914-3-14 3835 Contra Costa Byron Springs. 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
  CAS-BOT-BC137969  Alopecurus saccatus Niall McCarten; V. I. Dains 1986-6-1 03261419 Contra Costa 0.5 mile north of Balfour Road at the Deer Creek Reservori. Comment
  UC691946  Amaranthus albus Mary L. Bowerman 1932-8-27 1515 Contra Costa s of Turtle Rock; Mt. Diablo Comment
  UC2028195  Amaranthus albus Barbara Ertter 1997-8-18 15768 Contra Costa Disturbed area adjacent to Antioch Dunes NWR east of Antioch. Comment
  UC1948953  Ambrosia chamissonis William J. Ferlatte, L. Maynard Moe 1970-4-27 1219 Contra Costa San Francisco Bay: Red Rock Island Comment
  OBI17106  Ambrosia chamissonis G. Thomas Robbins, John Weiler 1959-5-23 4021 Contra Costa On breakwater (partly natural, partly manmade) portion of Brooks Island 9its NW extension), San Francisco Bay, Richmond Comment
  SEINET11910975  Amelanchier alnifolia W. Knight, Knight, I. 1983-1 4741 Contra Costa Tilden Botanic Garden, Berkeley Comment
  CHSC21836  Amsinckia Robert A. Schlising 1962-4-7 2150 Contra Costa In grass of roadside near Antioch Reservoir. Comment
  CAS-BOT-BC222233  Amsinckia John Thomas Howell 1933-3-29 10908 Contra Costa Nortonville hills Comment
  JEPS100075  Amsinckia intermedia G. Smick 2003-3-4 GAS 59 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS73693  Amsinckia intermedia L. R. Heckard with Wm. Hirano and Ted Niehaus 1968-3-5 1762 Contra Costa 3 mi se Byron (at junction of Holey Road, along Byron-Bethany Road) 7 Comment
  UC1178260  Amsinckia intermedia Francia Chisaki 1954-3-25 574 Contra Costa Mount Diablo; Mount Diablo State Park Comment
  UCR265177  Amsinckia intermedia Barbara Ertter, Jim Jokerst, Dave Magney 1989-4-5 8130 Contra Costa San Joaquin Valley, Clifton Court Forebay, c. 15 air miles southwest of Stockton 0 Comment
  SEINET12519155  Amsinckia intermedia Richard R. Halse 1988-1 3541 Contra Costa Along State Hwy. 4 near its junction with Balfour Road on the south edge of Brentwood 5 Comment
  UC1094057  Amsinckia intermedia Francia Chisaki 1954-4-15 590 Contra Costa on Hwy #40 near it's junction with Hwy #4, between Pinole and Hercules Comment
  UCD119619  Amsinckia intermedia John Thomas Howell 1933-5-14 11224 Contra Costa St. Mary's College. Comment
  CAS-BOT-BC222465  Amsinckia lunaris Robert F. Hoover 1939-4-24 4058 Contra Costa Lower end of San Pablo Reservoir Comment
  JEPS75462  Amsinckia lunaris P. F. Yorks 1976-4-25 507 -2 Contra Costa n. Briones Reservoir (ca. 1.5 km. s. of Bear Creek Rd. on hampton Rd. in Hampton Rd. Natural Reserve); Hampton Rd. Natural Reserve 170 Comment
  UC1084624  Amsinckia lunaris Francia Chisaki, Peter Kamb Ray 1952-5-4 2275 Contra Costa 1.5 mi e Orinda-Richmond road (leaving this road ca 1 mi n of Orinda); Bear Creek Road Comment
  CAS-BOT-BC222460  Amsinckia lunaris Francia Chisaki; Peter Kamb 1952-5-4 2275 Contra Costa Bear Creek Road, 1.5 miles east of Orinda-Richmond road (leaving this road ca. 1 mile north of Orinda) 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
  UC78256  Amsinckia tessellata var. tessellata K. Brandegee 1892-5-1 Contra Costa Antioch Comment
  JEPS108327  Androsace elongata subsp. acuta David Gowen, Mike Parks 2005-3-6 177 Contra Costa Mt. Diablo State Park. North-facing slope not far from summit of Oyster Point. Comment
  JEPS12259  Anemopsis californica W. L. Jepson May 22 1891-May 23 1891 Contra Costa Mount Diablo Comment
  POM169016  Anemopsis californica A. D. E. Elmer 1903-06 4870 Contra Costa Walnut Creek Comment
  UC691885  Angelica californica Mary L. Bowerman 1932-10-16 1631 Contra Costa Mount Diablo, Donner Canyon Trail Mount Diablo; , Donner Canyon Trail Comment
  UC692563  Angelica californica Mary L. Bowerman 1935-6-21 3149 Contra Costa Mount Diablo, e fork of Arroyo del Cerro Arroyo del Cerro; Mount Diablo, Arroyo del Cerro 274 Comment
  UCD159357  Anthemis cotula D. S. Park 2010-6-22 142 Contra Costa Wildwood canyon. Along trailside and on trail. 79 Comment
  UC40554  Anthemis cotula Brewer May 1862 1177 Contra Costa Comment
  JEPS100137  Anthriscus caucalis G. Smick 2003-4-29 GAS 148 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691891  Anthriscus caucalis Mary L. Bowerman 1932-5-6 1413 Contra Costa Mitchell Canyon floor Mitchell Canyon; Mount Diablo Comment
  UC2012963  Anthriscus caucalis Barbara Ertter with Travis Columbus 1990-6-10 9111 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill, damp soil in eroded stream cut, near crossing on Spengler Trail NE of Briones Peak. Comment
  SEINET2446344  Antirrhinum elmeri A. D. E. Elmer 4809 Contra Costa Mount Diablo. Comment
  SEINET8242148  Antirrhinum vexillocalyculatum A. D. E. Elmer 1903-1 4809 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC447664  Aphanes arvensis Mary L. Bowerman 1931-3-29 620 Contra Costa Mount Diablo, East Cave Point ridge, Comment
  UC2062618  Aphanes occidentalis Barbara Ertter with Save Mount Diablo outing 2003-5-8 18163 Contra Costa Mangini property on knoll west of Mount Zion, NW corner of Mount Diablo. Comment
  JEPS111632  Apocynum cannabinum D. G. Kelch 2004-7-9 04 .306 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  UC465564  Aquilegia Milo S. Baker 1904-6-23 Contra Costa near Hurley's; Mt. Diablo Comment
  UC692183  Aquilegia formosa Mary L. Bowerman 1938-6-14 3686 Contra Costa Juniper Camp 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
  CDA37785  Arabis breweri unknown 1937-4-18 Contra Costa Northern California; Mt. Diablo. 0 Comment
  CAS-BOT-BC128691  Arbutus menziesii C. Keefer 1922-9-25 s.n. Contra Costa Moraga Ridge Comment
  UC400150  Arbutus menziesii Ynes Inexia 1929-4-21 2382 Contra Costa Moraga Valley Comment
  CAS-BOT-BC410128  Arceuthobium occidentale Howard E. McMinn 317 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC410130  Arceuthobium occidentale J Kuijt 1958-1-22 s.n. Contra Costa Mt. Diablo Comment
  UC1332419  Arctostaphylos Edward Lee 1935-12-28 1704 Contra Costa sw-facing gulch on w end of ridge Concord Quadrangle, Las Trampas Ridge 426 Comment
  UC1509579  Arctostaphylos Stephen W. Edwards 1984-2-20 SW- 84 -1 Contra Costa w flank of ridge e Olinda Drive (nw of intersection of San Pablo Dam Rd and Castro Ranch Rd) Comment
  SEINET11971166  Arctostaphylos andersonii var. auriculata L. S. Rose 1934-1 24039 Contra Costa S slope of Mount Diablo, 8 mi NE of Danville Comment
  RSA121965  Arctostaphylos andersonii var. pallida B. O. Schreiber 1938-9-18 2548 Contra Costa 0.5 miles south southwest of Round Top. 335 Comment
  CAS-BOT-BC24109  Arctostaphylos auriculata Alice Eastwood; John Thomas Howell 1936-4-19 2130 Contra Costa Nortonville Comment
  CAS-BOT-BC24112  Arctostaphylos auriculata H. E. McMinn 1923-3-6 887 Contra Costa Head Sycamore canyon Comment
  CAS-BOT-BC24121  Arctostaphylos auriculata Lewis S. Rose 1934-2-28 34039 Contra Costa S. slope Mt. Diablo, 8 mi. NE Danville Comment
  JEPS38915  Arctostaphylos auriculata Mary L. Bowerman 1932-2-13 1086 Contra Costa on ridge between main forks of canyon Mount Diablo; , Alamo Canyon Comment
  NY8229  Arctostaphylos auriculata A. Eastwood 1903-2-22 3161 Contra Costa Mt. Diablo Comment
  POM203162  Arctostaphylos auriculata Alice Eastwood 1922-3-17 11083 Contra Costa Mt. Diablo Comment
  RSA622484  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27596 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments
Jan 30 2013
  UC1120857  Arctostaphylos auriculata H. A. Jensen 1938-10-27 455 Contra Costa head of Sycamore Creek Mt. Diablo Quadrangle 518 Comment
  UC549567  Arctostaphylos auriculata J. E. Adams 1934-3-19 678 Contra Costa Mt. Diablo Comment
  UC549568  Arctostaphylos auriculata J. E. Adams 1934-3-19 672 Contra Costa Mt. Diablo Comment
  UC692484  Arctostaphylos auriculata Mary L. Bowerman 1932-2-13 1086 Contra Costa on ridge between main forks of canyon Mount Diablo; , Alamo Canyon Comment
  UC697792  Arctostaphylos auriculata Mary L. Bowerman 1932-9-5 1546 Contra Costa near fire trail which runs s from large spur (on meridian) heading into Sycamore Canyon; Mount Diablo, Inner Black Hills Comment
  UC75346  Arctostaphylos auriculata Alice Eastwood 1903-2-22 3161 Contra Costa Mt. Diablo Comment
Read comments
Aug 25 2011
  CAS-BOT-BC23597  Arctostaphylos crustacea W. W. Carruth 1902-3-1 s.n. Contra Costa Pine Ridge, Moraga Valley Comment
  SEINET11989662  Arctostaphylos crustacea N. Havlik, Knight, W. 1982-1 4548 Contra Costa Briones Regional Park adjacent to Russell Tree Farm 328 Comment
  RSA367269  Arctostaphylos glandulosa subsp. glandulosa H. E. McMinn 1923-3-6 875 a Contra Costa Mt. Diablo. Comment
  CAS-BOT-BC24660  Arctostaphylos glauca John Thomas Howell 1926-3-7 1674 Contra Costa Mt. Diablo. Comment
  JEPS38916  Arctostaphylos glauca Mary L. Bowerman 1930-6-22 362 Contra Costa Mitchell Canyon Mount Diablo Comment
  UC692499  Arctostaphylos glauca Mary L. Bowerman 1931-9-12 1041 Contra Costa near road Mount Diablo, Mitchell-Pine divide Comment
  SEINET11989152  Arctostaphylos glauca B. A. Stein 1981-1 461 Contra Costa Mt. Diablo State Park, Juniper Camp 884 Comment
  CAS-BOT-BC27256  Arctostaphylos laevigata Alice Eastwood 1922-3-17 11082 Contra Costa Mt. Diablo Comment
  RSA632818  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27585 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  RSA632819  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27583 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  SJSU14146  Arctostaphylos manzanita M. Vickers 1975-2-6 Contra Costa near Nortonville between Concord & Pittsburg off Kirker Pass Rd 243 Comment
  UCSB22281  Arctostaphylos manzanita McMinn, H. 1936-4-11 Contra Costa Mt. Diablo; head of Sycamore Canyon Comment
  CAS-BOT-BC38876  Arctostaphylos manzanita subsp. laevigata L. R. Abrams 1910-10-8 4345 Contra Costa Mt. Diablo 548 Comment
  CAS-BOT-BC38925  Arctostaphylos manzanita subsp. laevigata L. R. Abrams 1910-10-8 4345 Contra Costa Mt. Diablo 548 Comment
  RSA122397  Arctostaphylos manzanita subsp. laevigata R. C. Wilson 1935-3-13 132 Contra Costa 1.5 mi W of Cave Pt. 563 Comment
  RSA140022  Arctostaphylos manzanita subsp. laevigata H. A. Jensen 1938-10-27 451 Contra Costa Head of Curry Canyon 518 Comment
  RSA164649  Arctostaphylos manzanita subsp. laevigata Percy C. Everett 1963-11-19 24499 Contra Costa Mt Diablo. 457 Comment
  UC1200412  Arctostaphylos manzanita subsp. laevigata Edward Lee 1936-1-12 1712 Contra Costa canyon bottom immediately s Nortonville Comment
  UC549595  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-10-6 849 Contra Costa Mount Diablo Comment
  UC549755  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 679 Contra Costa Mt. Diablo Comment
  UC82944  Arctostaphylos manzanita subsp. laevigata Katharine Brandegee 1889-1 5 Contra Costa Antioch Comment
  SEINET11977794  Arctostaphylos manzanita subsp. laevigata L. S. Rose 1934-1 34040 Contra Costa S slope Mt. Diablo, 8 mi NE Danville Comment
  UC692224  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1938-6-24 3693 Contra Costa road 8.9 mi from North Gate (crest of ridge above road, below Pines Picnic Area); Mount Diablo 792 Comment
  CAS-BOT-BC24384  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1932-1-19 1073 Contra Costa Mount Diablo, Inner Black Hills. Comment
  CAS-BOT-BC24389  Arctostaphylos manzanita subsp. manzanita Walter Knight; Irja Knight 1980-3-16 3713 Contra Costa Opposite 5996 Skyline Drive, El Sobrante. Comment
  POM193975  Arctostaphylos manzanita subsp. manzanita J. T. Howell 1926-3-7 1665 Contra Costa Mt. Diablo on old wagon road. Comment
  POM300725  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1933-3-25 1765 Contra Costa Emmons Canyon (off Stone Valley), west fork. Comment
  POM300726  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1932-1-19 1074 Contra Costa Inner Black hills, at west end of chaparral: Just over crest of ridge on north-facing slope. Comment
  UC909835  Arctostaphylos pallida Lewis S. Rose 1934-1-29 34010 Contra Costa summit of hills above Redwood Canyon (region of type); Oakland Hills Comment
Read comments
Aug 9 2011
  JEPS42608  Arctostaphylos tomentosa subsp. crustacea W. L. Jepson 1944-8-5 27546 Contra Costa Moraga Ridge Oakland Hills Comment
  JEPS46276  Arctostaphylos tomentosa subsp. crustacea W. L. Jepson 1943-6-19 20851 Contra Costa Moraga Ridge Comment
  RSA164648  Arctostaphylos tomentosa subsp. crustacea P. C. Everett 1963-11-19 11774 Contra Costa Mt. Diablo. 457 Comment
  UC1120134  Arctostaphylos tomentosa subsp. crustacea Beryl O. Schreiber 1938-9-18 2547 Contra Costa 0.7 mi n Pinehurst; Concord Quadrangle, Moraga Ridge 182 Comment
Read comments
Jan 25 2008
  UC1120187  Arctostaphylos tomentosa subsp. crustacea R. C. Wilson 1935-3-14 8156 Contra Costa 2 mi w Cave Pt.; Mt. Diablo Quadrangle Comment
  UC120093  Arctostaphylos tomentosa subsp. crustacea R. W. Lundh 1933-3-4 210 Contra Costa 1/2 mi sw Pinehurst; Concord Quadrangle Comment
  UC2042961  Arctostaphylos tomentosa subsp. crustacea Barbara Ertter with Chris Thayer, David Gowen, Kim Kersh 2007-2-11 18787 Contra Costa Flicker Ridge SE of Canyon, NW of junction Pinehurst and Canyon-Moraga roads. Comment
  UC549412  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-19 677 Contra Costa Rock City Mount Diablo Comment
  UC549440  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1935-10-21 550 Contra Costa Moraga Ridge Comment
  UC549443  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-2-15 608 Contra Costa Moraga Ridge Comment
  UC549467  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 636 Contra Costa Moraga Ridge Comment
  UC549471  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 624 Contra Costa Moraga Ridge Comment
  UCD51867  Arctostaphylos tomentosa subsp. crustacea Edward Lee 1935-12-28 1702 Contra Costa Western end of Las Tampas Ridge, Contra Costa County. 426 Comment
Read comments
Jul 2 2011
  CDA24528  Argemone munita subsp. rotundata Morgan 1958-5-16 Contra Costa Morgan Territorial Road, Clayton. 0 Comment
  JEPS32457  Aristolochia californica Mrs. L. J. Barker 1932-3-27 Contra Costa Bear Valley rd. just over the divide on Pinole side Orinda Comment
  POM87995  Aristolochia californica H. M. Hall 1900-3-23 s.n. Contra Costa Lauterwasser Creek Comment
  RSA51344  Aristolochia californica P. H. Raven 1950-3-5 s.n. Contra Costa Happy Valley Road .9 miles above intersection with Upper Happy Valley Road 183 Comment
  UCD137820  Aristolochia californica G. L. Stebbins Jr.; P. Dansereau, C. McMillan, K. Naravan 1949-3-26 3967 Contra Costa 0.5 mile northeast of Saint Mary's College, Moraga. Comment
  UC1949095  Artemisia biennis Barbara Ertter with Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 19800 Contra Costa upper (south) end of San Pablo Dam Reservoir northwest of Orinda Comment
  JEPS36980  Artemisia californica W. L. Jepson 1898-10-18 Contra Costa Mount Diablo Comment
  UC1948939  Artemisia californica William J. Ferlatte, L. Maynard Moe 1970-4-27 1264 Contra Costa San Francisco Bay: Red Rock Island Comment
  CAS-BOT-BC90298  Artemisia douglasiana Walter Knight; Joanne Dean 1978-8-14 3132 Contra Costa Browns Island Comment
  JEPS111683  Artemisia douglasiana D. G. Kelch 2003-8-13 03 .139 Contra Costa Pinole Creek 68 Comment
  CDA28791  Asclepias cordifolia D. G. Kelch, Troy MacGregor 2009-5-24 9 .302 Contra Costa Carquinez Strait; Carquinez Loop Trail S of Ozol, S-SW of Martinez, nr Wolcott Ln . Comment
  JEPS100126  Asclepias cordifolia G. Smick 2003-4-1 GAS 88 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS15235  Asclepias cordifolia Rimo Bacigalupi with G. Thomas Robbins 1956-5-11 5642 Contra Costa 1/4 mi above and nw Glen Frazier Station on the Santa Fe Railway; Franklin Canyon 106 Comment
  UCD80965  Asclepias fascicularis Chuck Hughes 2008-7-10 50 Contra Costa Marsh Creek at County Jail on Marsh Creek Road. 178 Comment
  UCR16092  Asclepias fascicularis Robin Maetche, Geoffrey Matthews 1971-7-4 s.n. Contra Costa 1 mi below North [Gate Road] entrance to Mt. Diablo State Park, Concord 427 Comment
  UC2013059  Asclepias fascicularis Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14916 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  CAS-BOT-BC478832  Asparagus officinalis Walter Knight; Joanne Dean 1978-8-14 3128 Contra Costa Brown's Island Comment
  HSC22051  Asparagus officinalis B. Dwelley 1966-4-9 9 Contra Costa Edens Plains Rd. 4 mi. E of Brentwood 20 Comment
  CDA39306  Asparagus officinalis subsp. officinalis A. G. Murdock 2003-6-24 115 Contra Costa Carquinez Strait; Near parking lot at northeast corner of Mount Wanda, Martinez. Comment
  UC1795104  Asphodelus fistulosus Barbara Ertter, Tony Morosco 2000-4-12 16959 Contra Costa Vasco Road 0.4 miles north of Tesla Road southeast of Livermore; roadside. Comment
  CDA1505  Aster chilensis D. G. Kelch 1998-10-13 s.n. Contra Costa Carquinez Strait; Base of Elkhorn Creek, E of Crockett. Comment
  RSA417743  Aster radulinus M. B. Dunkle 1931-7-18 2532 Contra Costa Strawberry Canyon, Berkeley 152 Comment
  CAS-BOT-BC180574  Astragalus asymmetricus M. K. Curran 1886-5-6 s.n. Contra Costa Antioch Comment
  SEINET3127336  Astragalus asymmetricus M. K. Curran 1886-5-18 sn Contra Costa Antioch Comment
  CAS-BOT-BC177885  Astragalus didymocarpus var. didymocarpus Brandegee 1889-5-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC178476  Astragalus gambelianus Alice Eastwood 1923-5-4 11722 Contra Costa Mt. Diablo Comment
  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
  SEINET12162892  Astragalus oxyphysus W. Knight, Knight, I. 1982-1 4498 Contra Costa Tilden Botanic Garden, Berkeley, ca originally collected nr Somersville Comment
  CAS-BOT-BC17454  Athysanus pusillus John Thomas Howell 1926-3-7 1677 Contra Costa Mount Diablo. Comment
  UC480596  Athysanus pusillus Carl Meyer 1928-2-22 291 Contra Costa Mount Diablo Comment
  CAS-BOT-BC17459  Athysanus pusillus Mary L. Bowerman 1931-2-28 525 Contra Costa Mount Diablo. Rock City Ridge near Rock City. 518 Comment
  JEPS99036  Atriplex Robert E. Preston & Eva Buxton 1994-8-4 676 Contra Costa E end of Briones Valley, W of Marsh Creek Reservoir. 60 Comment
  RSA454002  Atriplex coronata E. E. Stanford 1930-08 1869 Contra Costa near Old River. Comment
  RSA293440  Atriplex joaquinana Reino Alava 1958-6-6 2136 Contra Costa 3 miles south of Byron, between the highway south and the railroad track Comment
  UC70185  Atriplex joaquinana J. Burtt Davy May 1898 Contra Costa Danville region of Mount Diablo, Danville Comment
  UC2042800  Atriplex prostrata Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10871 Contra Costa Dow Wetlands Preserve just W of Antioch marina. Comment
  UCD158699  Atriplex prostrata James A. Neilson Jr. 1972-10-22 3509 Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 1 Comment
  JEPS78625  Atriplex prostrata Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3280 Contra Costa Browns Island , Browns Island (Botany Cove) Comment
  JEPS111801  Atriplex semibaccata D. G. Kelch 2004-7-9 04 .300 Contra Costa Port Costa - Shore Past Costa Shore 2 Comment
  RSA0029775  Atriplex semibaccata Barbara Ertter 1990-9-30 9655 Contra Costa SE of Hilltop Mall in N Richmond, near Day s Inn. Comment
  POM183312  Atriplex subspicata J. T. Howell 1931-10-31 8163 Contra Costa Bay Point. Comment
  JEPS111808  Atriplex triangularis D. G. Kelch 2003-8-13 03 .95 Contra Costa Martinez Marsh 1 Comment
  SD211583  Atriplex triangularis Barbara Ertter, Elizabeth Neese 1988-10-15 7979 Contra Costa Salicornia marsh West of I-580 in El Cerrito, West side along Rydin Road North of Central Avenue; edge of roadbank and marsh Comment
  CHSC116649  Avena barbata Lowell Ahart; Josephine Guardino 2016-4-19 20786 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
  UC691226  Avena barbata Mary L. Bowerman 1933-5-9 2040 a Contra Costa hillside e Pioneer Camp (exposure s to w); Mount Diablo Comment
  CAS-BOT-BC146021  Avena barbata Mary L. Bowerman 1933-5-8 2002 Contra Costa Mount Diablo. Fossil Ridge, south face, not far from but out of sight of South Gate. 289 Comment
  CAS-BOT-BC146024  Avena barbata John Thomas Howell 1983-5-12 54745 Contra Costa Mount Diablo. Juniper Camp. 914 Comment
  CDA19824  Avena fatua P. Akers 2002-5-11 s.n.- 1 a Contra Costa Northern California; Mt Diablo Rd. 205 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
  JEPS100027  Avena fatua A. Langston 2003-6-6 AL 37 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS84882  Avena fatua G. D. Barbe 1983-5-22 4081 Contra Costa hillside along fire road n. of Juniper Campground; Mount Diablo State Park 877 Comment
  UC606755  Avena fatua Edward Lee 1936-4-19 1996 Contra Costa Red Rock San Francisco Bay (island summit) Comment
  CAS-BOT-BC145749  Avena sativa G. D. Barbe 1983-5-22 4081 Contra Costa On hillside along fire road north of Juniper Campground, Mount Diablo State Park. 877 Comment
  UC1619933  Azolla filiculoides Barbara Ertter, Brad Olson 1991-9-28 10849 Contra Costa S end San Pablo Reservoir between Orinda and El Sobrante 97 Comment
  UC1199295  Baccharis glutinosa Joseph P. Tracy 1932-9-10 10784 Contra Costa e of and on Franklin Canyon Road Pinole (Rodeo Creek); , Franklin Canyon Road 60 Comment
  UC2028233  Baccharis glutinosa Barbara Ertter 1998-11-15 16463 Contra Costa North side Mount Olympia on north side Mount Diablo. Comment
  UC2070517  Baccharis glutinosa Barbara Ertter 2005-8-15 18629 Contra Costa East side of Contra Loma Reservoir south of Antioch, marsh in SE cove. Comment
  JEPS99961  Baccharis pilularis A. Langston 2003-9-16 AL 92 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1948938  Baccharis pilularis William J. Ferlatte, L. Maynard Moe 1970-4-27 1239 Contra Costa San Francisco Bay: Red Rock Island Comment
  SEINET11843057  Baccharis pilularis subsp. consanguinea Unknown 1983-1 4966 Contra Costa Castro Ranch Rd between Hillside St & Alhambra Valley Rd Comment
  UC761940  Balsamorhiza deltoidea R. F. Hoover 1939-4-13 4015 Contra Costa head of Markley Canyon, (w branch) Markeley Canyon Comment
  CAS-BOT-BC16381  Barbarea orthoceras W. W. Carruth 1902-4-29 s.n. Contra Costa Mount Diablo. Comment
  CDA39043  Bellardia trixago D. G. Kelch 2011-6-5 11 .571 Contra Costa Carquinez Strait; South of Crockett, south of Cummings Skyway. Comment
  UC163955  Bellardia trixago Carlotta Case Hall 1911-5-20 8835 Contra Costa on grassy hill near Concord 100 Comment
  UCD122096  Bellardia trixago Ira J. Condit 1968-4-1 s.n. Contra Costa Walnut Creek. Comment
  CHSC23354  Bellis perennis Willis Ball 1975-2-23 441 Contra Costa Contra Loma Regional Park. In area #1. Ca. 40 yds W of restroom facility on the S end of the lake. 30 Comment
  UC1328149  Berberis nervosa Olive Dyer 1937-2-27 208 Contra Costa just s Grizzly Peak (upper end of canyon on w side of n tributary); Wildcat Canyon Comment
  CAS-BOT-BC75784  Berberis pinnata 1917-3-25 113 Contra Costa West slope of Mount Diablo. 609 Comment
  UC1136356  Beta vulgaris H. S. Yates 1934-9-2 4063 Contra Costa Mt. Diablo 137 Comment
  CDA3009  Beta vulgaris C. Lasser 1960-4-19 Contra Costa State Highway, right of way between Concord Avenue and Grayson Creek. 0 Comment
  UCD158710  Beta vulgaris subsp. maritima James A. Neilson Jr. 1972-11-2 3613 a Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 1 Comment
  CAS-BOT-BC102084  Bidens frondosa F. C. Crawford 1963-9-16 101 Contra Costa Brentwood, Apricot Way. Milen's pipe line Comment
  NY31017  Blennosperma californicum A. Eastwood 1914-3-14 3768 Contra Costa Byron Springs Comment
  NY31018  Blennosperma californicum L. S. Rose 1941-3-13 41035 Contra Costa 3 miles south of Byron 7.6 Comment
  JEPS68966  Blennosperma nanum Edward Lee 1935-3-10 1299 Contra Costa Nortonville South watershed of Kirker Creek Comment
  CAS-BOT-BC100699  Blennosperma nanum var. nanum Brandegee s.n. Contra Costa [Antiock] Antioch Comment
  CAS-BOT-BC100703  Blennosperma nanum var. nanum M. K. C. 1886-5-1 s.n. Contra Costa Antioch Comment
  UC1540459  Blennosperma nanum var. nanum Annetta Carter 1937-3-28 1225 Contra Costa 15 mi e, along Marsh Creek Road Concord 152 Comment
  UC201362  Blennosperma nanum var. nanum Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  UC565479  Blennosperma nanum var. nanum H. L. Mason 1929-3-15 5045 Contra Costa just s of Nortonville Comment
  UC588147  Blennosperma nanum var. nanum Annetta Carter 1937-3-28 1225 Contra Costa 15 mi e, along Marsh Creek Rd Concord 152 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
  UC88955  Blepharizonia laxa Katherine Curran (= Katherine Curran Brandegee) 1883-10-1 Contra Costa near Judsonville - Antioch Comment
Read comments
Jan 22 2009
  CAS-BOT-BC100333  Blepharizonia plumosa R. F. Hoover 1937-8-31 2704 Contra Costa Pittsburg Comment
  JEPS18817  Blepharizonia plumosa R. F. Hoover 1937-9-2 2711 Contra Costa 1 mi w Antioch Comment
  RSA332608  Blepharizonia plumosa M. K. C 1885-08 s.n. Contra Costa Antioch Comment
Read comments
Dec 16 2012
  UC311580  Blepharizonia plumosa Miss H. A. Walker 1916-8-28 3922 Contra Costa near Antioch (Los Medanos); Los Medanos Comment
  UC762568  Blepharizonia plumosa Robert F. Hoover 1937-9-2 2711 Contra Costa 1 mi w of Antioch Comment
  SEINET3166336  Boechera breweri subsp. breweri P. J. Alexander, C. D. Bailey 2009-3-30 969 -D Contra Costa Mount Diablo State Park, on North Peak 0.2 miles west of teh summit, 8.8 miles east of central Walnut Creek. 1012 Comment
  UC118056  Boechera breweri subsp. breweri G. W. Dunn 1892-3-12 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC15957  Boechera breweri subsp. breweri H. E. McMinn 1923-3-6 880 Contra Costa Near summit of Mount Diablo. Comment
  CAS-BOT-BC15968  Boechera breweri subsp. breweri W. W. Carruth 1901-3-1 s.n. Contra Costa Mount Diablo near summit. Comment
  POM249869  Boisduvalia densiflora Joseph A. Ewan, Nesta Ewan 1935-8-23 9337 Contra Costa Shasta road entrance, Wildcat Creek drainage Comment
  POM300655  Boisduvalia glabella Mary L. Bowerman 1935-6-28 3173 Contra Costa Mount Diablo: Vernal pool near meridian (300 yards east of meridian fence line) south of summit 488 Comment
  JEPS111893  Bolboschoenus maritimus D. G. Kelch 2004-6-6 04 .230 Contra Costa Martinez - Train Station In large fill area North of Frontage Road. In marsh East of Martinez and I-680 2 Comment
  JEPS2846  Bolboschoenus maritimus subsp. paludosus J. Burtt Davy 1897-9-4 4075 Contra Costa Stege; ; Stege, Contra Costa Co. Comment
  JEPS111884  Bolboschoenus robustus D. G. Kelch 2003-8-13 03 .104 Contra Costa Martinez Marsh 0 Comment
  UCD161761  Bolboschoenus robustus James A. Neilson Jr.; Samuel A. Bamberg 1972-10-22 3502 Contra Costa Walnut Creek drainage. (Exact location unknown. Coordinates and elevation estimated by label maker based on collection data from same date.) 1 Comment
  CAS-BOT-BC95322  Bowlesia incana James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  JEPS111597  Bowlesia incana A. G. Murdock 2004-4-30 242 Contra Costa Vaca Canyon 165 Comment
  POM300701  Bowlesia incana Mary L. Bowerman 1935-5-1 2937 Contra Costa North Road 2 miles from entrance, across the creek from the road, Mount Diablo. 183 Comment
  UC2028574  Bowlesia incana Barbara Ertter with Stu Garrett 1997-3-29 15538 Contra Costa West side Mount Diablo, north end of Mothers Trail. Comment
  RSA0029674  Brachypodium distachyon Barbara Ertter, Dan Norris 1998-6-18 16222 Contra Costa Devil's Slide trail from Knobcone Point Road, south side of Mount Diablo. 457 Comment
  CDA20615  Brassica juncea G. F. Hrusa 2006-1-18 s.n. Contra Costa San Francisco Bay Area; Residence in San Pablo at Stanton at San Pablo Ave. 0 Comment
  UC650432  Brassica rapa Ira L. Wiggins 1930-4-18 4609 Contra Costa Jersey Island Comment
  JEPS127232  Briza minor Lowell Ahart, Josephine Guardino 2016-4-19 20789 Contra Costa 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Dam, approximately 25 miles (air) southwest to Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  RSA424694  Brodiaea elegans subsp. elegans Aaron Liston 1987-4-27 670 -2 Contra Costa 3 miles S of Byron. Comment
  POM181436  Brodiaea terrestris subsp. terrestris I. L. Wiggins 1930-4-17 4573 Contra Costa Near Byron. Comment
  SEINET7106148  Bromus carinatus Beecher Crampton 1960-3-29 5481 Contra Costa City of El Cerrito, corner of Carlon and Lassen Boulevards.; 0 Comment
  CAS-BOT-BC149541  Bromus carinatus var. carinatus R. E. Frenkel 1964-9-18 845 Contra Costa On Giant Road at its junction with Atlas Road, Richmond. 16 Comment
  UC2028410  Bromus carinatus var. carinatus Barbara Ertter 1998-4-4 15969 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, Fossil Hill, middlle of NE-facing slope Comment
  CAS-BOT-BC156062  Bromus diandrus Walter Knight; Irja Knight; et al 1978-9-5 3219 Contra Costa Browns Island. Sandy Knoll. Comment
  CDA28880  Bromus diandrus D. G. Kelch 2006-5-7 6 .162 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  UC606748  Bromus diandrus Edward Lee 1936-4-19 1976 Contra Costa San Francisco, Red Rock Red Rock; San Francisco, Red Rock Comment
  UC691215  Bromus diandrus Mary L. Bowerman 1933-5-8 2005 Contra Costa not far from (but out of sight from) South Entrance (Mount Diablo, Fossil Ridge); Mount Diablo, Fossil Ridge 289 Comment
  UC691227  Bromus diandrus Mary L. Bowerman 1935-5-16 2983 Contra Costa Mount Diablo, Russelman Park, at end of road Russelman Park; Mount Diablo, Russelman Park 381 Comment
  UC691228  Bromus diandrus Mary L. Bowerman 1935-5-3 2954 Contra Costa below Garden-of-the-Jungle Gods (Mount Diablo, Fossil Ridge); Mount Diablo, Fossil Ridge Comment
  CAS-BOT-BC156068  Bromus diandrus Mary L. Bowerman 1935-5-25 3068 Contra Costa South of the summit and east of the haripin turn on the highway. 1066 Comment
  CDA29150  Bromus hordeaceus D. G. Kelch 2006-5-7 6 .146 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  POM363884  Bromus hordeaceus Anstruther Davidson 1930-07 3244 Contra Costa Mt. Diablo. Comment
Read comments
Mar 6 2011
  UC1131074  Bromus hordeaceus C. M. Belshaw 1936-5-7 2047 Contra Costa 2 mi s of San Ramon 274 Comment
  POM301030  Bromus madritensis Mary L. Bowerman 1933-5-8 2004 Contra Costa Fossil Ridge, south face, not far from but out of sight of South Entrance 290 Comment
  CAS-BOT-BC162356  Bromus madritensis Mary L. Bowerman 1935-5-22 3037 Contra Costa Mount Diablo. Eagle Point Ridge, canyon at north end which heads into saddle west of Twin Peaks. 304 Comment
  UC691208  Bromus madritensis subsp. madritensis M. L. Bowerman 1932-4-27 1382 Contra Costa S face, canyon W of Riggs Canyon Oyster ridge 335 Comment
  JEPS75534  Bromus madritensis subsp. rubens P. F. Yorks 1974-4-28 1451 Contra Costa 1.7 km s of Bear Creek Road on Hampton Road (n of Briones Reservoir, in Hampton Road Natural Reserve); Hampton Road Natural Reserve Comment
  UC697124  Bromus madritensis subsp. rubens Mary L. Bowerman 1935-5-8 2979 Contra Costa first main ridge e of Pioneer Camp (Mount Diablo); Mount Diablo Comment
  CAS-BOT-BC161950  Bromus rubens R. E. Frenkel 1964-3-26 406 Contra Costa On north side of Highland Road, 0.25 mile east of Tassajara Road junction. 195 Comment
  UC1795743  Bromus sterilis Barbara Ertter, Mary Bowerman et al. 1995-5-7 14053 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, open oak forest above houses. Comment
  JEPS99574  Bromus tectorum Mary L. Bowerman 1978-5-26 Contra Costa Mount Diablo. N of Lower Summit parking lot. Comment
  CDA19035  Cabomba caroliniana R. Gage 2000-10-18 PDR 1198719 Contra Costa Clifton Ct Forebay, NW of Tracy and head of state water project in the vicinity of Byron. 0 Comment
Read comments
Nov 3 2010
  JEPS111868  Cakile maritima D. G. Kelch 2004-7-9 04 .313 Contra Costa Rodeo Shoreline 0 Comment
  UC2028525  Calamagrostis rubescens Barbara Ertter 1997-11-1 15881 Contra Costa South side Mount Diablo, near Balancing Rock on Knobcone Point Road Comment
  CAS-BOT-BC185034  Calamagrostis rubescens Virginia E. Long 1933-6-14 222 a Contra Costa Mount Diablo. Inner Black Hills. 563 Comment
  SEINET10521095  Calamagrostis rubescens Virginia E. Long 1933-6-14 Long 222 a Contra Costa Mt. Diablo. Inner Black Hills along with poison oak, N. slope. 564 Comment
  CAS-BOT-BC233994  Calandrinia breweri R. F. Hoover 1939-4-13 4019 Contra Costa Head of Markley Canyon (west branch) Comment
  CAS-BOT-BC438367  Calandrinia ciliata V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley Comment
  JEPS112033  Calandrinia ciliata D. G. Kelch 2003-3-21 03 .71 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  JEPS68965  Calandrinia ciliata Edward Lee 1935-3-10 1298 Contra Costa Nortonville; (s watershed of Kirker Creek) Comment
  JEPS99971  Calandrinia ciliata G. Smick 2003-4-8 GAS 134 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1300961  Calandrinia ciliata Helen K. Sharsmith 1962-4-7 4920 Contra Costa Appian Way near El Sobrante 121 Comment
  UCR12027  Calandrinia ciliata Coleta A. Lawler 1964-5-8 56 Contra Costa San Francisco Bay Region, Hampton Road, 3 .7 mi south of junction with Alhambra Valley Road; c. 10 miles northwest of Lafayette 46 Comment
  UC2031431  Callitriche marginata Barbara Ertter with David Gowen 2006-6-6 18677 Contra Costa Upper San Leandro Reservoir Watershed (EBMUD) south Moraga Comment
  JEPS61610  Calochortus albus F. Hein 1931-4-14 Contra Costa St. Mary's College Comment
  UC1481552  Calochortus albus Neil Havlik 1980-5-1 910 Contra Costa 0.5 mi nw Eugene O'Neill Home; San Ramon Comment
  CAS-BOT-BC132490  Calochortus pulchellus R. F. Hoover 1968-5-16 11092 Contra Costa Upper Marsh Creek Comment
  CAS-BOT-BC132502  Calochortus pulchellus L. R. Abrams 1921-5-25 8053 Contra Costa 4 1/2 mi from summit, Mt. Diablo Comment
  HSC90076  Calochortus pulchellus C. Baldwin, A. Hiss, P. Reynolds 1990-5-1 68 Contra Costa 6 mi. SE of Mt. Diablo 537 Comment
  HSC93902  Calochortus pulchellus C. Newberry 1994-4-30 7250 Contra Costa Mt. Diablo State Park, trail from Mitchell Canyon Parking to Donner Creek 900 Comment
  JEPS17770  Calochortus pulchellus Alice Eastwood 1899-5-21 Contra Costa Mount Diablo Comment
  SEINET3885356  Calochortus pulchellus Clayton Newberry 1994-4-30 7250 Contra Costa Mount Diablo State Park, trail from Mitchell Cn. Prkng to Donner Cr.; 0 900 Comment
  CAS-BOT-BC132495  Calochortus pulchellus Elizabeth McClintock; Wayne Roderick 1967-5-30 s.n. Contra Costa Marsh Creek Road, n. base of Mt. Diablo 76 Comment
  UC2028221  Calochortus pulchellus Barbara Ertter with Christopher Baysdorfer 1998-5-10 16125 Contra Costa West side Lime Ridge Open Space northwest of Mount Diablo. Comment
  UCD139551  Calochortus pulchellus H. A. Stout; T. C. Wainwright 1980-4-13 3 Contra Costa Mallory Ranch, around 1/2 mile east of Morgan Territory road. 609 Comment
  UC56197  Calochortus umbellatus H. M. Hall 1900-3-24 Contra Costa San Pablo Hills San Francisco Bay Region Comment
  RSA68630  Calochortus venustus Frank W. Peirson 1923-7-1 3682 Contra Costa Mt. Diablo. Comment
  POM195651  Calycadenia hispida H. M. Hall 1916-8-16 10274 Contra Costa Horse Valley, 9 km south of Antioch Comment
  HSC104418  Calystegia David Gowen 2005-5-29 396 Contra Costa West of Morgan Territory Rd. and the main entrance to Morgan Territory Regional Preserve; north of summit of hill 2581 (Tassajara Pk.?) Comment
  UC1965403  Calystegia subacaulis R. K. Brummitt and B. Ertter 2012-6-17 22061 Contra Costa Berkeley Hills, Tilden Park, Seaview Trail north of Vollmer Peak Comment
  HSC104419  Calystegia subacaulis David Gowen 2005-5-29 402 Contra Costa West of Morgan Territory Rd. and the main entrance to Morgan Territory Regional Preserve; north of summit of hill 2581 (Tassajara Pk.?) Comment
  UC2062681  Calystegia subacaulis Barbara Ertter with Tony Morosco 1998-7-11 16368 Contra Costa North base of Mount Diablo State Park, Coulter Pine Trail just east of Mitchell Rock Trail. Comment
  JEPS100014  Calystegia subacaulis subsp. subacaulis G. Smick 2003-5-6 GAS 170 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1197881  Calystegia subacaulis subsp. subacaulis Joseph P. Tracy 1934-4-30 13192 Contra Costa Near Lafayette. 152 Comment
  JEPS31810  Camissonia campestris Miss Linda Gehringer 1914-3-29 Contra Costa Brentwood Comment
  UC107666  Camissonia campestris subsp. campestris Katharine Curran May 1883 Contra Costa Antioch Comment
  UC635291  Camissonia campestris subsp. campestris H. L. Mason 1931-4-5 5820 Contra Costa Antioch sandhills Comment
  POM31985  Camissonia contorta C. F. Baker 1903-4-25 2824 Contra Costa Antioch. Comment
  RSA41307  Camissonia ovata Robert F. Hoover 1938-2-21 2755 Contra Costa Point Richmond. Comment
  UC2062661  Camissonia ovata Barbara Ertter 2002-5-16 17854 Contra Costa Richmond Field Station (UC-Berkeley). Comment
  UC35344  Camissoniopsis micrantha Chesnut and Drew 1889-4-18 Contra Costa Sand Hills Antioch Comment
  UC635405  Camissoniopsis micrantha H. L. Mason 1929-3-31 5160 Contra Costa Antioch San Joaquin River (sand dike along river) Comment
  UC764055  Camissoniopsis micrantha Robert F. Hoover 1935-3-10 314 Contra Costa Antioch sand-dunes Comment
  UC29002  Campanula exigua Edw. L. Greene 1892-6-20 Contra Costa Mount Diablo Comment
  CAS-BOT-BC266438  Campanula exigua Rimo Bacigalupi 1924-6-14 s.n. Contra Costa Summit of Mount Diablo Comment
  SEINET10461956  Campanula exigua Joseph W. Congdon 1896-5-30 Congdon s.n. Contra Costa Summit of Diablo Comment
  JEPS108315  Campanula griffinii David Gowen 2005-5-28 391 Contra Costa Mt. Diablo State Park. Prospectors Gap Road outside of park boundary. Small serpentine area ca 1/4 mile west of junction with Ray Morgan Rd. (dirt). Comment
  UC2029116  Campanula griffinii Barbara Ertter with D. Gowen, J. Ginochio, M. Park, S. Matson, A. Moore, S. D'Alcamo, J. Greenhouse, K. Kersh and J. Gawthrup 2005-4-8 18570 Contra Costa Long Ridge on west flank of Mt. Diablo, springs and pond on Ginochio property near park boundary. Comment
  JEPS111861  Capsella bursa-pastoris D. G. Kelch 2004-3-12 04 .27 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road 220 Comment
  CAS-BOT-BC37390  Cardamine californica Alice Eastwood 1922-3-17 11087 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC37394  Cardamine californica John Thomas Howell 1933-5-14 11255 Contra Costa Hills east of Saint Mary's College. Comment
  JEPS53375  Cardamine californica W. L. Jepson 1923-3-11 9850 Contra Costa half-way up s slope Mount Diablo; s slope Mount Diablo 685 Comment
  UC1126899  Cardamine californica R. C. Wilson 1935-3-19 142 Contra Costa 1 mi se Wall Pt.; Mt. Diablo Quad. Comment
  UC480597  Cardamine californica Carl Meyer 1928-2-22 289 Contra Costa Mt. Diablo Comment
  UC517996  Cardamine californica John Thomas Howell 1931-3-10 5757 Contra Costa on Livermore Road 7 mi from Clayton (e side Mt. Diablo); e side Mt. Diablo Comment
  LA204280  Cardamine californica John Thomas Howell; 1931-3-10 5757 Contra Costa Mt. Diablo, 7 miles from Clayton on Livermore road Comment
  POM272920  Cardamine californica var. integrifolia Lyman Benson 1931-3-18 2657 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  POM272925  Cardamine californica var. integrifolia Lyman Benson 1935-3-16 6277 Contra Costa Mitchell Canyon near Clayton; Mt. Range: Mt. Diablo; Watershed: Walnut Creek. 244 Comment
  UC10326  Cardamine californica var. integrifolia W. H. Brewer 1862-5-1 1039 Contra Costa Walnut Creek Comment
  UC10419  Cardamine californica var. integrifolia W. H. Brewer 1862-5-1 1039 Contra Costa Walnut Creek Comment
  UC2027753  Cardamine hirsuta Barbara Ertter 1997-2-11 15455 Contra Costa north side of Mount Diablo, Mitchell Canyon trailhead parking area, trodden ground. 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
  CAS-BOT-BC281736  Carduus pycnocephalus Paul F. Covel 1938-6-26 s.n. Contra Costa Las Trampas Canyon, behind St. Mary's Comment
  SEINET4023248 Image available Carduus pycnocephalus B. C. Templeton 1962-1 sn Contra Costa Mount Diablo. Comment
  CAS-BOT-BC281803  Carduus tenuiflorus David Keck 1941-6-5 5312 Contra Costa Berkeley Hills, Fish Creek Rd, 0.25 mile W of E portal of Broadway Tunnel 335 Comment
  POM301033  Carduus tenuiflorus Mary L. Bowerman 1934-6-9 2547 Contra Costa South Road, bend by Diablo Trail sign reading 4.4 miles to summit 305 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
  UC691960  Carex barbarae Mary L. Bowerman 1938-10-10 3724 Contra Costa juntion between North and South Roads: along stream Mount Diablo 624 Comment
  CAS-BOT-BC19210  Carex barbarae Mary L. Bowerman 1935-9-13 3344 Contra Costa Mount Diablo. Frog Pond. At head of Forg Pond spring. Comment
  POM300641  Carex barbarae Mary L. Bowerman 1935-9-13 3344 Contra Costa Mount Diablo: Frog Pond, at head of Frog Pond Spring. Comment
  UC691963  Carex densa Mary L. Bowerman 1938-5-28 3646 Contra Costa South Road, by spring, paralleling streamlet Mount Diablo 640 Comment
  CAS-BOT-BC20852  Carex globosa John Thomas Howell 1953-3-15 28923 Contra Costa Rock City, Mt. Diablo. Comment
  UC932  Carex globosa Brewer 1862-5-23 1150 Contra Costa Mt. Diablo 609 Comment
  SEINET11263180  Carex globosa Barbara Ertter, A. T. Whittemore; Joanne Kerbavaz 2001-5-22 17650 Contra Costa South side of Mount Diablo, headwaters of West Branch Alamo Creek ESE of Knobcone Point, below powerline at end of Knobcone Point road.; 0 457 Comment
  UC2028235  Carex globosa Barbara Ertter, Tony Morosco 1998-9-18 16439 Contra Costa Lime Ridge Open Space northwest of Mount Diablo. Comment
  UC2028415  Carex globosa Barbara Ertter with Alan Whittemore, Joanne Kerbavaz, et al. 2001-5-22 17650 Contra Costa South side Mount Diablo, headwaters of West Branch Alamo Creek ESE of Knobcone Point, below powerline at end of Knobcone Point Road Comment
  CHSC114386  Carex obnupta D. G. Kelch; Michael Park, Abigail Moore 2007-5-1 7251 B Contra Costa Along the old San Joaquin River Channel, S of Clifton Court Forebay and SE of Byron. 0 Comment
  UC2028413  Carex praegracilis Barbara Ertter 2001-5-10 17638 Contra Costa South side Mount Diablo, Suphur Spring tributary of west fork Sycamore Creek, ca. 1/4 mile from Madrone Canyon Trail Comment
  UC2029197  Carex serratodens Barbara Ertter with Michelle Lee et al. 2002-6-29 17964 Contra Costa Lower Curry Creek on east side of Mount Diablo, private property just above Morgan Territory Comment
  UC823230  Carex serratodens Lewis S. Rose 1935-5-16 35163 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC117549  Carex serratodens Miss Mary Leolin Bowerman 1936-4-23 3406 Contra Costa Moses Rock Spring. 640 Comment
  UC2028564  Carex serratodens Barbara Ertter with Mary Bowerman 1996-11-1 15405 Contra Costa North base of Mount Diablo, lower Donner Creek between trailhead and cabin site, along now dried stream bed. Comment
  UC593503  Carex subbracteata G. L. Stebbins Jr. 1936-5-9 1555 Contra Costa e side Wildcat Canyon; Berkeley Hills Comment
  CDA20549  Carthamus creticus R. Fonseca 2005-6-2 PDR 1327561 Contra Costa San Francisco Bay Area; 1171 Chistie Rd, Martinez. 0 Comment
  JEPS14827  Castilleja affinis subsp. affinis Rimo Bacigalupi 1956-7-17 5734 Contra Costa 2.3 mi n Happy Valley road junction with State Highway 24 (just n of summit of Upper Happy Valley road, on road n-ward from Happy Valley to the head of Briones Valley) 304 Comment
  JEPS41055  Castilleja affinis subsp. affinis Rimo Bacigalupi, and L. R. Heckard 1965-5-11 9080 Contra Costa sw of Richmond (Brooks Island); San Francisco Bay, Brooks Island 30 Comment
  JEPS43525  Castilleja affinis subsp. affinis August Hartman 1960-4-19 6 D Contra Costa North Gate Road on Mt. Diablo; Mt. Diablo 609 Comment
  UC1818874  Castilleja affinis subsp. affinis Barbara Ertter, Brad Olson 1994-5-7 12753 Contra Costa Send Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay. Hillside Comment
  UC525863  Castilleja affinis subsp. affinis Robert W. Gardner 1934-3-30 57 Contra Costa 3 mi s Mt. Diablo Comment
  UC765541  Castilleja affinis subsp. affinis R. F. Hoover 1938-5-4 3346 Contra Costa peak e of Tassajero Creek Comment
  HSC101960  Castilleja applegatei subsp. martinii Nikolaus Gillen, Michelle Bihler 2014-3-20 12 Contra Costa Mount Diablo State Park. Eagle Peak Trail. 649 Comment
  UC41755  Castilleja attenuata Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  UC691576  Castilleja attenuata Mary L. Bowerman 1933-5-11 2084 Contra Costa w end Inner Black Hills; Mount Diablo Comment
  JEPS15212  Castilleja exserta subsp. exserta C. M. Belshaw 1936-5-11 2096 Contra Costa 5.25 mi e Danville; Mt. Diablo 289 Comment
  UC27243  Castilleja exserta subsp. exserta H. P. Chandler 1900-3-24 Contra Costa Briones Hills; Mount Diablo Region Comment
  JEPS17083  Castilleja exserta subsp. latifolia Rimo Bacigalupi with Keith Harrison and G. T. Robbins 1955-5-13 5064 Contra Costa opposite El Cerrito (just to the w of Arlington Avenue and opposite Mira Vista Country Club); Berkeley Hills 198 Comment
  SEINET5543151  Castilleja parviflora H. S. Gentry 1931-1 51 Contra Costa Collected near Buckle Point, Mount Diablo. Comment
  CDA41397  Castilleja rubicundula subsp. lithospermoides A. G. Murdock 2003-6-24 114 Contra Costa Carquinez Strait; Near upper trail on north side of Mount Wanda, Martinez. Comment
  UC27223  Castilleja rubicundula subsp. lithospermoides J. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  JEPS73300  Castilleja wightii L. R. Heckard 1973-6-6 3421 Contra Costa ravine behind La Moine Park; Richmond 121 Comment
  CAS-BOT-BC41037  Caulanthus flavescens Mary L. Bowerman 1935-4-22 2879 Contra Costa Mount Diablo. North Road 2 miles from North Gate. 213 Comment
  CAS-BOT-BC41040  Caulanthus flavescens A. R. Kruckeberg 1949-4-16 1735 Contra Costa Above road, 2 miles inside old North Entrance to Mount Diablo State Park (not tollgate). Comment
  CAS-BOT-BC48837  Ceanothus cuneatus Mary L. Bowerman 1932-9-3 1531 Contra Costa Muir Area: Burn (1931) Comment
  CAS-BOT-BC48840  Ceanothus cuneatus D. O. Burge 2007-5-9 DOB 916 b Contra Costa Mount Diablo sState Park, roadside on South Gate Road, 1.5 road miles (2.4 km) north of entrance gate 380 Comment
  UCD111741  Ceanothus cuneatus W. Ebeling 1929-3-19 s.n. Contra Costa Mount Diablo. Comment
  UC1070932  Ceanothus cuneatus var. cuneatus R. W. Lundh 1933-3-29 222 Contra Costa 1 mi w Alamo; Concord quad Comment
  UC1071118  Ceanothus cuneatus var. cuneatus R. W. Lundh 1932-8-25 144 Contra Costa Mt. Diablo. 1 mi s and 1/2 mi w of; Mt. Diablo quad. 731 Comment
  UC480608  Ceanothus cuneatus var. cuneatus Carl Meyer 1928-2-22 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC51494  Ceanothus oliganthus var. sorediatus C. H. M. 1919-8-24 s.n. Contra Costa Las Trampas Peak Comment
  JEPS42191  Ceanothus oliganthus var. sorediatus W. L. Jepson 1908-4-4 3003 Contra Costa West Branch of San Pablo Creek Berkeley hills Comment
  JEPS42292  Ceanothus oliganthus var. sorediatus W. L. Jepson 1907-4-26 2465 Contra Costa Mitchell Creek Mt. Diablo Comment
  HSC18334  Ceanothus thyrsiflorus D. A. Shally 1965-4-18 34 Contra Costa Canyon, 1.5 mi. NE of Canyon Store on 'fire trail 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
  UC1555364  Centaurium davyi Jerry Powell 1988-6-28 1541 Contra Costa Point Molate, in w Richmond Richmond, Point Molate Comment
  JEPS88689  Centromadia fitchii John Thomas Howell 30904 Contra Costa near Turtle Rock; Mt. Diablo 259 Comment
  UC1069518  Centromadia fitchii H. S. Yates 1934-9-2 4086 Contra Costa 2 mi s Mt. Diablo; Mt. Diablo Quad. 579 Comment
  UC691508  Centromadia fitchii Mary L. Bowerman 1930-9-27 471 Contra Costa 2.5 mi from entrance (= North Gate) (w road (= North Rd.)); Mount Diablo Comment
  UC702537  Centromadia fitchii L. S. Rose 1941-10-13 41464 Contra Costa 1 mi e Walnut Creek 50 Comment
  CAS-BOT-BC288537  Centromadia fitchii David D. Keck 1933-11-2 2616 Contra Costa 1 mile E of Nichols, N part of county Comment
  UC523550  Centromadia parryi subsp. congdonii David D. Keck 1933-11-2 2610 Contra Costa Crow Creek Canyon Road 1/2 mi from turnoff San Ramon Comment
  UCD130137  Centromadia parryi subsp. congdonii Robert E. Preston 1998-10-6 1172 Contra Costa on west side of Camino Tassajara, 0.5 to 0.9 miles south of Highland Road. 176 Comment
  CDA9504  Centromadia pungens D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .231 Contra Costa Byron Airport. Comment
  UCD14671  Centromadia pungens Mick Canaveri 1997-4-1 s.n. Contra Costa near Brentwood. Comment
  UC1563855  Centromadia pungens subsp. pungens Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8138 Contra Costa alkali sink w and adjacen to Clifton Court Forebay (ca 15 air mi sw of Stockton) 0 Comment
  CAS-BOT-BC279189  Centromadia pungens subsp. pungens David D. Keck 1933-11-2 2617 Contra Costa 2.4 mi. E. of Antioch on road to Oakley, N. Contra Costa County Comment
  CAS-BOT-BC279190  Centromadia pungens subsp. pungens A. A. Heller 1928-4-15 14487 Contra Costa About Byron Springs Comment
  CAS-BOT-BC279195  Centromadia pungens subsp. pungens D. E. Breedlove 1969-10-18 16706 Contra Costa On Deer Hill Road near the junction with Happy Valley Road, Lafayette Comment
  CAS-BOT-BC222901  Cephalanthus occidentalis Walter Knight; Joanne Dean 1978-8-14 s.n. Contra Costa Browns Island Comment
  JEPS111783  Cerastium glomeratum D. G. Kelch 2003-3-21 03 .72 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  RSA0069381  Cerastium glomeratum Katie Gallagher, Nick Jensen 2014-4-26 208 Contra Costa Las Trampas Regional Wilderness. 487 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
  UC1127921  Cercocarpus betuloides var. betuloides R. C. Wilson 1935-3-28 153 Contra Costa Top of Mount Diablo Mount Diablo 1158 Comment
  UC691101  Cercocarpus betuloides var. betuloides Mary L. Bowerman 1931-4-25 Contra Costa summit of Meridian Peak (Mount Diablo); , Meridian Peak Comment
  UC34798  Chaenactis glabriuscula var. glabriuscula W. C. Blasdale 1893-5-13 Contra Costa Antioch Comment
  RSA181414  Chaenactis glabriuscula var. megacephala James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  CDA4775  Chamaesyce serpens D. G. Kelch, A. G. Murdock 2005-6-24 5 .38 Contra Costa Carquinez Strait Region; Crockett - Crolona Heights. 6th Street at Lillian Street, Crockett, CA. Comment
  JEPS111950  Chamaesyce serpens D. G. Kelch 2004-5-21 04 .221 Contra Costa Crockett - Edwards Canyon Edwards Creek EBRP Staging Area near Greenhouse 24 Comment
  JEPS106987  Cheilanthes intertexta J. Greenhouse with Kevin Hintsa 2004-4-5 5086 Contra Costa Mt. Diablo, Fire Interpretive Trail, Devil's Pulpit 1088 Comment
  CDA23364  Chenopodium californicum D. G. Kelch, A. G. Murdock 2004-3-5 4 .01 Contra Costa Carquinez Strait Region; Sky Ranch. Dutra Fire Road. Franklin Canyon. Comment
  CDA21590  Chenopodium multifidum D. G. Kelch, Mike Park 2008-9-1 8 .302 Contra Costa Carquinez Strait; Lonetree Point. Rodeo Shoreline Park. Rodeo. Comment
  JEPS100056  Chlorogalum pomeridianum A. Langston 2003-6-12 AL 42 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCR13095  Chlorogalum pomeridianum Robin Maetche, Geoffrey Matthews 1971-7-4 s.n. Contra Costa 1 mi below North [Gate Road] entrance to Mt. Diablo State Park, Concord 427 Comment
  CDA39315  Chlorogalum pomeridianum var. pomeridianum D. G. Kelch 2005-6-24 5 .387 Contra Costa Carquinez Strait Region; 5th Street Prairie, Crockett. Comment
  CAS-BOT-BC252678  Chorizanthe membranacea Alice Eastwood 1915-5-30 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC252680  Chorizanthe membranacea Mary L. Bowerman 1938-5-28 3636 Contra Costa North Road 4.7 miles from North Gate, Mount Diablo 411 Comment
  RSA392753  Chorizanthe membranacea L. S. Rose 1941-5-15 41230 Contra Costa Mt. Diablo, w. slope 396 Comment
  CAS-BOT-BC30111  Chrysolepis chrysophylla var. minor H. E. Mc. Minn 1922-5-30 31 Contra Costa Moraga ridge Comment
  OBI3313  Chrysolepis chrysophylla var. minor Neil Havlik 1969-9-1 518 Contra Costa Along the Huckleberry Trail aobut 1/2 mi from Skyline Blvd, Oakland HIlls 396 Comment
  POM202440  Cicuta bolanderi J. W. Congdon 1893-7-30 s.n. Contra Costa Martinez. Comment
  UC71900  Cirsium brevistylum W. A. Setchell 1897-3-21 Contra Costa Wild Cat Canon Comment
  CAS-BOT-BC277975  Cirsium cymosum John Thomas Howell 1942-7-19 17039 Contra Costa Near Rock City, Mt. Diablo Comment
  JEPS59174  Cirsium occidentale var. venustum W. L. Jepson 1922-5-23 9655 Contra Costa s slope, upper third of mt. Mt. Diablo Comment
  POM352184  Cirsium occidentale var. venustum B. C. Templeton 1962-6-10 s.n. Contra Costa Mt Diablo. Comment
  SEINET4023759 Image available Cirsium occidentale var. venustum B. C. Templeton 1962-1 sn Contra Costa Mt. Diablo. Comment
  UC691390  Cirsium occidentale var. venustum Mary L. Bowerman 1930-6-10 295 Contra Costa near Mineral (on North Road); Mount Diablo 396 Comment
  JEPS41056 Image available Cirsium quercetorum Rimo Bacigalupi 1965-5-11 9081 Contra Costa Brooks Island (in San Francisco Bay southwest of Richmond). Comment
  RSA757051  Citrullus colocynthis var. lanatus Rudolf Schmid 2003-9-13 2003 -15 Contra Costa Vacant lot, 24 Edwin Drive, Kensington 169 Comment
  CAS-BOT-BC162564  Clarkia affinis Mary L. Bowerman 1935-5-22 3041 Contra Costa Eagle Point Ridge, canyon at north end which heads into saddle west of Twin Peaks - Mount Diablo 304 Comment
  JEPS100006  Clarkia affinis G. Smick 2003-4-29 GAS 154 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  POM181148  Clarkia affinis J. T. Howell 1931-5-12 6483 Contra Costa Mt. Diablo. Comment
  UC1122360  Clarkia affinis C. M. Belshaw 1936-5-15 2130 Contra Costa Stewartsville Mt. Diablo Quadrangle Comment
  UC692504  Clarkia affinis Mary L. Bowerman 1933-5-17 2095 Contra Costa due s Olafsons' barn (branch of Curry Cave Canyon); Mount Diablo Comment
  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
  JEPS43657  Clarkia biloba Ivar Tidestrom June, 1895 Contra Costa Crockett Comment
  UC306514  Clarkia biloba A. D. E. Elmer May, 1903 4319 Contra Costa Mount Diablo Comment
  UC373494  Clarkia biloba C. L. Hitchcock 1928-6-5 15 Contra Costa 1 mi w Port Costa (between Port Costa and Crockett) 5 Comment
  UCD104071  Clarkia biloba C. Thayer 1994-8-1 s.n. Contra Costa West side of Lafayette Ridge, Lafayette. Comment
  UCD21831  Clarkia biloba C. Thayer 1994-8-1 s.n. Contra Costa West side of Lafayette Ridge, Lafayette. Comment
  LA106651  Clarkia biloba subsp. biloba W. L. Jepson; 1918-6-3 7585 Contra Costa Donner Canyon, Mount Diablo 685 Comment
  CAS-BOT-BC163603  Clarkia biloba subsp. biloba C. L. Hitchcock 1928-6-5 15 Contra Costa Between Port Costa and Crockett, 1 mile west of Port Costa 5 Comment
  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
  JEPS75482  Clarkia purpurea subsp. purpurea P. F. Yorks 1974-5-24 168 Contra Costa ca 1.7 km s Bear Creek Road (on Hampton Road, n of Briones Reservoir); Hampton Road Natural Reserve Comment
  CAS-BOT-BC172559  Clarkia purpurea subsp. purpurea Mary L. Bowerman 1933-6-14 2270 Contra Costa Curry-Cave Canyon, ridge between two main forks, Mount Diablo Comment
  CAS-BOT-BC163671  Clarkia purpurea subsp. quadrivulnera Barrett Anderson 1987-4-30 3500 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  CDA33413  Clarkia purpurea subsp. quadrivulnera D. G. Kelch, D. A. Weinstein 2011-5-28 11 .539 Contra Costa Carquinez Strait Region.; W of Martinez. N of end of Hillside Pl. Comment
  CAS-BOT-BC163674  Clarkia purpurea subsp. quadrivulnera H. L. Mason 1928-4-26 4379 Contra Costa Around Berkeley and Oakland Comment
  RSA0059918  Clarkia purpurea subsp. quadrivulnera Glenn A. Gorelick 1967-5-20 s.n. Contra Costa Russelman Park, Mt. Diablo State Park Comment
  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
  UCD104921  Clarkia purpurea subsp. quadrivulnera Jennifer Davies 1982-4-11 3 Contra Costa 1 mile NW of South Checking Station on South Gate Road, Mt. Diablo. 487 Comment
  CAS-BOT-BC172365  Clarkia purpurea subsp. viminea Paul F. Covel 1940-5-12 1743 Contra Costa Summit of Mt. Diablo Comment
  UC113995  Clarkia rubicunda Katharine Brandegee 1908-7-3 Contra Costa n side Point Isabel (type locality) Comment
  RSA448454  Clarkia unguiculata E. E. Stanford 1930-5-24 1510 Contra Costa Marsh Creek Canyon. Comment
  SBBG69731  Claytonia exigua subsp. exigua unknown 1895-1 Contra Costa Mt Diablo Comment
  UC692547  Claytonia exigua subsp. exigua Mary L. Bowerman 1935-3-16 2737 Contra Costa e fork Arroyo del Cerro; Mount Diablo 262 Comment
  UC692548  Claytonia exigua subsp. exigua Mary L. Bowerman 1935-3-16 2732 Contra Costa Peach Tree Springs Road Mount Diablo (e fork of canyon) 228 Comment
  CAS-BOT-BC439162  Claytonia exigua subsp. exigua Mary L. Bowerman 1933-4-15 1875 Contra Costa Mount Diablo. Canyon south of Arroyo del Cerro, about 250 feet below spring Comment
  CAS-BOT-BC439173  Claytonia exigua subsp. exigua Elsie Zeile 1909-4-18 s.n. Contra Costa Redwood Peak Comment
  JEPS112034  Claytonia parviflora subsp. parviflora D. G. Kelch 2003-3-21 03 .46 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  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
  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
  HSC24671  Claytonia perfoliata B. Dwelley 1966-4-6 19 Contra Costa Eden Plains Rd., 4 mi. E of Brentwood 20 Comment
  RSA31654  Claytonia perfoliata A. A. Heller 1908-4-17 8909 Contra Costa Tracy 11 Comment
  CAS-BOT-BC440075  Claytonia perfoliata subsp. perfoliata John Thomas Howell 1931-3-10 5755 Contra Costa East side of Mt. Diablo 7 miles from Clayton on Livermore road Comment
  JEPS68970  Claytonia perfoliata subsp. perfoliata Edward Lee 1935-3-10 1304 Contra Costa Nortonville; s watershed of Kirker Creek Comment
  UC692539  Claytonia perfoliata subsp. perfoliata Mary L. Bowerman 1932-3-12 1111 Contra Costa Alamo Canyon; Mount Diablo 350 Comment
  UC1050211  Clematis flammula N. Floy Bracelin 1941-10-13 1703 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC545776  Clematis lasiantha Annetta M. Carter 1935-6-1 874 Contra Costa n.w. slope of main peak Mt. Diablo 1005 Comment
  SEINET5547635  Clematis ligusticifolia H. S. Gentry 1931-1 57 Contra Costa Collected near Buckle Point, Mount Diablo. Comment
  UC41779  Collinsia bartsiifolia var. bartsiifolia The Postmaster 1900-3-24 Contra Costa Oakley; Mount Diablo Region Comment
  UC26674  Collinsia heterophylla J. Burtt Davy 1895-4-8 970 Contra Costa Antioch Comment
  UC691588  Collinsia heterophylla Mary L. Bowerman 1930-6-7 270 Contra Costa Mount Diablo, summit of Meridian Peak Meridian Peak; Mount Diablo, Meridian Peak Comment
  UC1607637  Collinsia sparsiflora var. collina Barbara Ertter with Michelle Seidl 1992-3-14 10919 Contra Costa Morgan Territory Regional Preserve e of Mount Diablo; Morgan Territory Regional Preserve Comment
  UC672467  Collinsia sparsiflora var. collina H. L. Mason 1925-3-10 1295 Contra Costa Mount Diablo. Comment
  UC691586  Collinsia sparsiflora var. collina Mary L. Bowerman 1931-3-21 593 Contra Costa Sycamore Canyon 350 Comment
  UC2027814  Collinsia sparsiflora var. collina Barbara Ertter with Stu Garrett 1997-3-29 15530 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  UC1612419  Collinsia tinctoria R. Raiche 1982-6-19 20460 Contra Costa Mt. Diablo Comment
  UC691587  Collinsia tinctoria Mary L. Bowerman 1930-6-7 271 Contra Costa Summit of Mount Diablo Comment
  UC2028981  Collinsia tinctoria Barbara Ertter 2000-5-14 17017 Contra Costa Donner Basin on north side of Mount Diablo, upper end of Falls Trail near junction of Cardinet Oaks Road. Comment
  CDA3510  Consolida ambigua O. Moss 1970-6-3 Contra Costa Empire Mine Road, Brentwood. 0 Comment
  UC23157 Image available Convolvulus luteolus var. purpuratus Ivar Tidestrom 1893-4-15 Contra Costa Sheep Island Island, S.Fr. Bay, (Brooks Island) Comment
  JEPS111731  Conyza canadensis D. G. Kelch 2004-9-2 04 .331 Contra Costa Pacheco Marsh east of Martinez and I-680 and east of lone tree Marsh 5 Comment
  UC1584663  Conyza canadensis Jerry Powell 1990-8-29 1586 Contra Costa Antioch National Wildlife Refuge Comment
  UC2028030  Conyza canadensis Barbara Ertter 1997-9-14 15802 Contra Costa WSW base of Mount Diablo, along creek at fence line between Pine Ridge and lower Wall Point Road from Macedo Ranch. Comment
  UC1050105  Coprosma areolata N. Floy Bracelin 1942-3-22 1985 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1050401  Coprosma areolata N. Floy Bracelin 1941-9-21 1646 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California 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-BC32965  Cordylanthus nidularius John Thomas Howell 1942-7-19 17044 Contra Costa NE of Deer Flat, Mt. Diablo Comment
  RSA537699  Cordylanthus nidularius T. I. Chuang 1975-6-29 7517 Contra Costa Northeast of Deer Flat, Mount Diablo Comment
  UC691741  Cordylanthus nidularius J. T. Howell 1942-7-19 17044 Contra Costa NE (?) of Deer Flat, Mt. Diablo, Contra Costa Co. Comment
  SEINET12269039  Cordylanthus pilosus M. T. Doutt 1930-1 88 Contra Costa Marsh Creek Comment
  UC691507  Cordylanthus pilosus subsp. pilosus Mary L. Bowerman 1936-8-8 3523 Contra Costa Emmons Canyon, W fork Mount Diablo Comment
  UC2028021  Cordylanthus pilosus subsp. pilosus Barbara Ertter 1997-9-14 15815 Contra Costa southwest side of Mount Diablo, Wall Point Road east of crest of ridge. Comment
  CAS-BOT-BC209749  Cornus glabrata V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Comment
  CDA23597  Cornus sericea D. G. Kelch 2007-9-8 7 .579 Contra Costa Carquinez Strait; Pinole Valley Park. Comment
  UC2028523  Cortaderia jubata Barbara Ertter 1997-9-14 15814 Contra Costa Southwest side of Mount Diablo, Secret Trail at head of Pine Canyon. Comment
  CAS-BOT-BC190027  Cortaderia selloana Wm. Anderson 1959-10-1 s.n. Contra Costa On Montezuma Slough near Suisun. Comment
  CAS-BOT-BC169516  Corylus cornuta subsp. californica John Thomas Howell 1925-9-19 1456 Contra Costa Moraga Ridge, Oakland Hills Comment
  UC2028952  Cotoneaster pannosus Barbara Ertter 2000-7-16 17388 Contra Costa lower Pine Creek in Diablo Foothills Regional Park. Comment
  UC2028111  Cotula australis Barbara Ertter with Christopher Baysdorfer 1998-5-10 16111 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, of Ohlone Trail. Comment
  CDA37279  Cotula coronopifolia D. G. Kelch 2011-3-31 11 .072 Contra Costa Carquinez Strait Region; Richmond, near Point Pinole Regional Park. Comment
  UCD159362  Cotula coronopifolia D. S. Park; S. Joslin 2010-6-27 147 Contra Costa Santa Cruz. Lighthouse Field State Beach. Below W Cliff dr. Growing on rocky outcrops. Scattered individuals. 0 Comment
  CAS-BOT-BC291337  Cotula coronopifolia Walter Knight; et al 1979-4-13 3359 Contra Costa Point Emmet, Browns Island Comment
  JEPS99548  Crassula aquatica Mary Bowerman 1975-9-14 Contra Costa Mount Diablo, Hidden Pond. Comment
  RSA0027646  Crassula aquatica Barbara Ertter 1998-5-3 16059 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. 274 Comment
  CHSC21629  Crassula connata Willis Ball 1975-4-19 521 Contra Costa In area #8 ca. 450 yds s of main parking lot ca. 750 yds w of Conta Loma Blvd. Contra Costa Regional Park. 76 Comment
  JEPS68960  Crassula connata Edward Lee 1935-3-10 1292 Contra Costa Antioch Sand Dunes e. of Antioch; Antioch Sand Dunes Comment
  UC1121528  Crocanthemum scoparium var. vulgare R. W. Lundh Contra Costa San Francisco Quadrangle Comment
  UC692613  Crocanthemum scoparium var. vulgare Mary L. Bowerman 1931-11-7 1067 Contra Costa 1920 point Mount Diablo, Inner Black Hills Comment
  OBI22928  Croton setiger Janet Harford 1971-11-6 2 Contra Costa Mount Diablo, S side 610 Comment
  CAS-BOT-BC190080  Crypsis schoenoides Walter Knight 1978-8-27 3197 Contra Costa Loma Regional Park near Antioch. 30 Comment
  UC1795843  Crypsis schoenoides Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa 1995-10-22 14532 Contra Costa Three Springs Trail on northeast side of Mt. Diablo, south of crest of Marsh Creek Rd. dried roadside pond, clay. Comment
  SEINET10595215  Crypsis schoenoides Barbara J. Ertter 1995-10-22 Ertter 14532 Contra Costa Three Springs Trail on northeast side of Mt. Diablo, south of crest of Marsh Creek Rd. dried roadside pond, clay. Comment
  SEINET4344622 Image available Crypsis schoenoides Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa. 1995-10-22 14532 Contra Costa Three Springs Trail on NE side of Mt. Diablo, south of crest of Marsh Creek Rd. dried roadside pond, clay. Comment
  SEINET4343820 Image available Crypsis vaginiflora Unknown 1989-9-30 8865 Contra Costa Tilden Regional Park E of El Cerrito, East Bay Skyline Nat'l Recreation Trail (= Nimitz Way), small dried pond ca 1 1/4 mi NW of Inspiration Point. Comment
  JEPS84746  Cryptantha micromeres J. Stratford 1981-6-8 Contra Costa Huckleberry Trail Huckleberry Botanic Regional Preserve Comment
  UC78683  Cryptantha microstachys Mrs. K. Brandegee May 1890 Contra Costa Brentwood Comment
  UC691358  Cryptantha muricata Mary L. Bowerman 1931-5-7 808 Contra Costa North Peak Mount Diablo Comment
  UC691393  Cryptantha nevadensis var. rigida Mary L. Bowerman 1932-4-9 1331 Contra Costa Mount Diablo; Inner Black Hills, small ridge E of S spur on meridian Comment
  UC691345  Cryptantha torreyana Mary L. Bowerman 1933-5-22 2164 Contra Costa near saddle just west of Cave Point Comment
  CHSC114262  Cucurbita foetidissima D. G. Kelch 2008-9-10 08 .297 Contra Costa North of Waterbird Park along RR tracks. E of Martinez. 2 Comment
  UCR51833  Cuscuta californica P. A. Munz 1947-10-8 12200 Contra Costa Dunes near Antioch 8 Comment
  CDA5579  Cuscuta epithymum R. DeBoer 1966-9-15 Contra Costa M. V. Nursery, foot of Market Avenue, Richmond. 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
  UCD150917  Cuscuta salina James A. Neilson Jr. 1972-10-21 s.n. Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 0 Comment
  UC1197867  Cuscuta subinclusa Joseph P. Tracy 1932-9-10 10789 B Contra Costa Franklin Canyon 152 Comment
  UC1197871  Cuscuta subinclusa Joseph P. Tracy 1932-9-10 10789 D Contra Costa Franklin Canyon 152 Comment
  UC562677  Cuscuta subinclusa Joseph P. Tracy 1932-9-10 10789 Contra Costa Franklin Canyon 152 Comment
  UC691854  Cuscuta subinclusa Mary L. Bowerman 1935-6-1 3118 Contra Costa n side Meridian Peak summit (below house); Mount Diablo 1158 Comment
  UC691904  Cuscuta subinclusa Mary L. Bowerman 1932-9-17 1587 Contra Costa Donner Canyon, w fork toward mouth Mount Diablo Comment
  UC1055901  Cymbalaria muralis N. Floy Bracelin 1941-4-13 1154 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC190225  Cynodon dactylon Walter Knight 1978-8-27 3187 Contra Costa Contra Loma Regional Park near Antioch. 30 Comment
  UC691770  Cynoglossum grande Mary L. Bowerman 1935-3-15 2733 Contra Costa e. fork Arroyo del Cerro (Mt. Diablo, Peach Tree Springs rd.); Mt. Diablo, e. fork Arroyo del Cerro 228 Comment
  CDA43393  Cynosurus echinatus D. G. Kelch 2012-5-27 12 .074 Contra Costa Carquinez Strait Region; Pinole Valley Park. Comment
  SEINET5546123  Cynosurus echinatus E. A. Bernays 1985-1 s.n. Contra Costa Tilden. Comment
  CAS-BOT-BC114613  Cyperus eragrostis James McMurphy 1908-10-18 s.n. Contra Costa Antioch Comment
  UC698543  Cyperus eragrostis Thomas Morley 1940-11-21 84 Contra Costa at upper end where Redwood Creek enters the lake San Leandro Lake 129 Comment
  SEINET10551690  Cyperus eragrostis Thomas B. Croat 1966-6-18 Croat 1992 Contra Costa Frank's Tract, Bethel Island; 7 mi W of Oakley, lakeside and marsh habitats. Comment
  SEINET10869432  Cyperus eragrostis Thomas Morley 1940-12-3 Morley 90 Contra Costa Coarse perennial one to three feet high, in dense masses, associated with Salix, typha, polypogon in fine rich moist soil, banks at upper end of san Leandro lake near mouth of redwood creek 130 Comment
  UC1795882  Danthonia californica var. californica Barbara Ertter, Brad Olson 1994-5-7 12754 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  UC1606344  Datura wrightii Barbara Ertter, B. Olson, D. Lake, L. Hosley and A. Youngson 1991-10-20 10857 Contra Costa just w Antioch marina (Dow Wetlands Preserve, plowed fields at sw end); Dow Wetlands Preserve Comment
  JEPS20071  Deinandra corymbosa Peter H. Raven 1957-7-5 11052 Contra Costa tip of Point Isabel Point Isabel Comment
  CAS-BOT-BC294013  Deinandra kelloggii Alice Eastwood 1927-5-19 14445 Contra Costa Byron Springs Comment
  JEPS12629  Deinandra kelloggii M. K. Curran May 1886 Contra Costa near Antioch Comment
  UC88925  Deinandra kelloggii K. Brandegee 1889-5-1 Contra Costa Antioch Comment
  CAS-BOT-BC291809  Deinandra lobbii David D. Keck 1933-11-2 2615 Contra Costa 1 mi. E. of Nichols, N. Contra Costa County Comment
  UC1818999  Delphinium Barbara Ertter, Tom Delendick 1996-5-2 14615 Contra Costa Mount Diablo State Park, Deer Flat Road north of Juniper Camp, at cut through open live oak forest, northwest-facing slope. 853 Comment
  UC691947  Delphinium californicum Mary L. Bowerman 1935-5-30 3091 Contra Costa rock slide Mount Diablo, Eagle Point Ridge 350 Comment
  UC691948  Delphinium californicum Mary L. Bowerman 1935-5-30 3091 Contra Costa rock slide Mount Diablo, Eagle Point Ridge 350 Comment
  POM225347  Delphinium hesperium J. T. Howell 1931-5-12 6482 Contra Costa N side of Mt Diablo Comment
  UC9202  Delphinium nudicaule W. H. Brewer 1862-5-7 1053 Contra Costa n slope Monte Diablo Comment
  UC69615  Delphinium parryi subsp. parryi R. C. Marsh 1900-4-5 Contra Costa Oakley Comment
  UC536012  Delphinium patens Laurence S. Jones 1934-4-8 58 Contra Costa w slope of mt approximately 3 mi surface distance from peak; Mt. Diablo 609 Comment
  CAS-BOT-BC116457  Delphinium patens subsp. patens Alice Eastwood 1915-5-30 4497 Contra Costa Mt. Diablo Comment
  POM270661  Delphinium patens subsp. patens Lyman Benson 1935-3-16 62655 Contra Costa Mt. Diablo, Watershed: Walnut Creek; Mountain Range: Mt. Diablo. 915 Comment
  UC1819000  Delphinium patens subsp. patens Barbara Ertter, Tom Delendick 1996-5-2 14614 Contra Costa Mount Diablo State Park, Deer Flat Road north of Juniper Camp, at cut through open live oak forest, northwest-facing slope. 853 Comment
  POM150573  Delphinium recurvatum C. F. Baker 1903-4-27 s.n. Contra Costa Byron. Comment
Read comments
Oct 4 2007
  UC199142  Delphinium variegatum Chesnut and Drew 1887-4-16 Contra Costa Clayton Comment
  CAS-BOT-BC17030  Delphinium variegatum Miss Mary Leolin Bowerman 1913-5-22 3652 Contra Costa Mount Diablo. Rock City 518 Comment
  UC634890  Dendromecon rigida H. L. Mason 1925-1-11 1177 Contra Costa Moraga Ridge Comment
  UCSB25081  Dendromecon rigida Rieser, D. 1966-4-2 Contra Costa New Bear Creek Road, 2 mi. north of Old Dam Rd., Orinda 304 Comment
  CAS-BOT-BC192543  Deschampsia cespitosa subsp. holciformis Peter H. Raven 1955-6-12 8293 Contra Costa Just above Antioch Comment
  CDA31667  Deschampsia danthonioides D. G. Kelch, A. G. Murdock 2005-3-25 05 .-095 Contra Costa Carquinez Strait Region; Fernandez Ranch. West of Christie Road, south of I-4 (behind golf course) and north of Pinole Peak. Comment
  UC2028497  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 Comment
  JEPS9557  Dicentra chrysantha W. L. Jepson 1921-11-19 9518 Contra Costa Mt. Diablo Comment
  UC2032818 Image available Dichelostemma capitatum Doran, Andrew Scott 2012-3-20 688 Contra Costa North end of Brooks Island along ridge overlooking artificial spit, southwest of caretakers residence. Comment
  UC30118  Dichelostemma capitatum W. C. Blasdale 1896-2-28 Contra Costa Clayton Comment
  UC64062  Dichelostemma capitatum Harley P. Chandler 1901-3-22 854 Contra Costa near Martinez; San Francisco Bay Region Comment
  UC765943  Dichelostemma capitatum R. F. Hoover 1938-2-21 2756 Contra Costa Point Richmond Comment
  CAS-BOT-BC500090  Dichelostemma capitatum Alice Eastwood 1921-4-10 10195 Contra Costa Willows Comment
  SEINET12053833  Dichelostemma capitatum L. S. Rose 1932-1 3284 Contra Costa Byron Comment
  CAS-BOT-BC502555  Dichelostemma congestum John Thomas Howell 1933-5-14 11258 Contra Costa Hills east of St. Mary's College Comment
  CAS-BOT-BC502180  Dichelostemma ida-maia E E Smith 1893-1-1 s.n. Contra Costa near Mount Diablo Comment
  RSA721369  Dichondra donelliana Barbara Ertter, Gary Schoolcraft 1996-4-7 14574 Contra Costa Pont San Pablo in west Richmond. Comment
  CDA36457  Dimorphotheca sinuata Deviney 2011-9-1 PDR# 1641230 Contra Costa Brentwood; Balfour Rd. near Fairview Rd. 0 Comment
  CAS-BOT-BC150328  Diplacus aurantiacus D. E. Breedlove 1970-4-18 17427 Contra Costa At the north edge of Lafayette above Laurel Drive 243 Comment
  CAS-BOT-BC150330  Diplacus aurantiacus Alice Eastwood 1921-4-18 10287 Contra Costa Antioch Comment
  CAS-BOT-BC151950  Diplacus douglasii John Thomas Howell 1941-4-6 16177 Contra Costa Near Deer Flat, Mt. Diablo Comment
  RSA697529  Dipsacus fullonum J. Vlahos 1934-8-1 s.n. Contra Costa Contra Costa County Hills. Comment
  CAS-BOT-BC121842  Dirca occidentalis Frank Walton Gould 1940-2-8 864 Contra Costa Grizzly Peak 289 Comment
  JEPS77000  Dirca occidentalis Robert M. Lloyd 1963-3-17 2131 Contra Costa Skyline Drive 0.5 mi e intersection with Grizzly Peak Road (across from 7090 Skyline, Huckleberry trail) Comment
  RSA40099  Dirca occidentalis L. S. Rose 1948-3-9 s.n. Contra Costa Head of Wildcat Creek, Berkeley Hills 457 Comment
  UC872740  Dirca occidentalis Lewis S. Rose 1939-1-24 39002 Contra Costa head of Wildcat Canyon Berkeley Hills 426 Comment
  LA209791  Dirca occidentalis Chas M. Belshaw; 1935-3-3 372 Contra Costa San Pablo Reservoir, NE face of Bald Peak Comment
  SEINET6957398  Dirca occidentalis Lorin I. Nevling 1996-2-15 343 Contra Costa Huckleberry Botanic Regional Preserve, above Huckleberry Trail about 1/2 way down trail, northeast-facing slope, under stunted Quercus agrifolia woodland. "Western Leatherwood." Comment
  UCSB25834  Dirca occidentalis Keefe, Joseph 1967-3-20 Contra Costa Huckleberry Trail, 0.5 mile east of Skyline Boulevard, near intersection with Grizzly Peak Boulevard, east of Berkeley 274 Comment
  JEPS112508  Disporum hookeri A. G. Murdock 2003-6-2 83 Contra Costa Franklin Canyon - McHarry Ranch Rd. 137 Comment
  UC3560  Disporum hookeri unknown 1862-5-16 1099 Contra Costa s of Mount Diablo Comment
  CDA4506  Dittrichia graveolens J. K. Balciunas 2006-6-12 191 Contra Costa Marina Way S. and Hall Avenue, Richmond. 0 Comment
  SBBG5610  Dodecatheon clevelandii subsp. patulum J. M. Tucker 1946-3-24 1384 Contra Costa hills between Nortonville and Somersville Comment
  UC673358  Dodecatheon clevelandii subsp. patulum Herbert L. Mason 1925-2-28 1260 Contra Costa 1/2 mi e Rodeo; e of Rodeo Comment
  UC1618109  Dodecatheon hendersonii Donald G. Nelson 1937-3-30 461 Contra Costa Along Marsh Creek Road between Clayton and Byron Comment
  UC1046584  Dodecatheon hendersonii Alex D. Hawkes and R. Bacigalupi 1951-4-22 4777 Contra Costa State Rd. #4 near Mt. Diablo (along Marsh Creek); , near Mt. Diablo Comment
  OBI20959  Downingia insignis Robert F. Hoover 1967-4-28 10503 Contra Costa Byron Hot Springs 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
  RSA97189  Downingia insignis J. T. Howell 1953-4-26 28935 Contra Costa Between Byron and Byron Hot Springs. Comment
  UCR196231  Downingia ornatissima Beecher Crampton 1950-4-22 530 Contra Costa 2 mi south of Antioch, on road from Antioch to Lone Tree Valley 61 Comment
  SJSU3103  Downingia ornatissima var. eximia J. A. Johnson 1956-4-7 11 Contra Costa 1.5 mi E of Concord in El Monte District Comment
  UC1192049  Downingia pulchella F. Chisaki, S. G. Smith, and Peter M. Ray 1951-4-14 1980 Contra Costa 7 mi n Walnut Creek (e of Highway 21, 0.2 s of intersection with Highway 4) Comment
  UCD35141  Downingia pulchella Beecher Crampton 1950-4-22 535 Contra Costa Concord Valley. Comment
  CAS-BOT-BC70864  Dryopteris arguta Mary L. Bowerman 1930-6-18 342 Contra Costa Dan Cook Canyon Comment
  UC606763  Dryopteris arguta Edward Lee 1936-4-19 1981 Contra Costa e slope Red Rock; San Francisco Bay Comment
  UC692555  Dudleya cymosa Mary L. Bowerman 1935-5-22 3061 Contra Costa Twin Peaks Eagle Point Ridge 472 Comment
  UC692560  Dudleya cymosa subsp. paniculata Mary L. Bowerman 1931-6-17 925 Contra Costa e side Riggs Canyon Comment
  JEPS25137  Dudleya farinosa G. Thomas Robbins 1959-5-16 4007 Contra Costa just s Pt. San Pablo (Potrero Hills); Richmond Comment
  UC1357009  Dudleya farinosa C. H. Uhl 1954-6-1 360 Contra Costa Richmond Point Comment
  UCD60759  Echinochloa colona Beecher Crampton 1965-9-26 7528 Contra Costa 2 miles south of Brentwood, junction Walnut Ave, and Marsh Creek Road. Comment
  JEPS107109  Echinochloa crus-galli Barbara Ertter, Kristin Ertter 1995-7-11 14486 Contra Costa West side of Mt Diablo; mudflat around inlet to Pine Pond. Comment
  CAS-BOT-BC197106  Echinochloa crus-galli R. E. Frenkel 1963-8-23 274 Contra Costa On the lot in front of Market Plaza Center on Highway 21, Alamo 79 Comment
  SEINET245836 Image available Echinochloa crus-galli Beecher Crampton 1965-9-29 7527 Contra Costa 2 miles south of Brentwood, jct. Of Walnut ave. and Marsh Creek rd., Comment
  UC1050510  Echium fastuosum N. Floy Bracelin 1941-4-20 1215 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  SEINET3892203  Eichhornia crassipes Barbara Ertter 1990-9-16 9642 Contra Costa Junction of Cypress Road & Jersey Island Road E of Oakley, covering ditch between road & field.; 0 Comment
  UCR11895  Elaeagnus angustifolia E. C. Van Dyke 1941-10-4 s.n. Contra Costa [San Joaquin] river bank east of Antioch 15 Comment
  JEPS111900  Eleocharis macrostachya D. G. Kelch 2005-3-24 05 .62 Contra Costa Point Pinole Southern Pt. Pinole 3 Comment
  JEPS111903  Eleocharis macrostachya D. G. Kelch 2005-4-24 05 .179 Contra Costa Franklin Canyon. Collier Hill. West Carbon 16 Comment
  UC1618280  Eleocharis macrostachya Barbara Ertter, Brad Olson 1991-9-28 10836 Contra Costa S end of San Pablo Reservoir, between Orinda and El Sobrante 91 Comment
  UC691974  Eleocharis macrostachya Mary L. Bowerman 1935-6-21 3151 Contra Costa S of Turtle Rock (tiny pool above main pond); Mount Diablo Comment
  CAS-BOT-BC112795  Eleocharis macrostachya Walter Knight; Irja Knight 1978-10-9 3320 Contra Costa Contra Loma Regional Park, Antioch, at reservoir's edge Comment
  UC1745668  Eleocharis macrostachya Annetta M. Carter, Florence Little, Edward Lee 1934-7-4 676 Contra Costa Marsh Creek Rd. 3 miles beyond Contra Costa Co. Sanatorium. Comment
  UC1818864  Eleocharis macrostachya Barbara Ertter, Kristin Ertter 1995-7-11 14471 Contra Costa Sulfur Spring on Pine Cr, Diblo Foothill Regional Park, marshy wet ground. 121 Comment
  POM300639  Eleocharis palustris Mary L. Bowerman 1935-6-21 3152 Contra Costa Mount Diablo: South of Turtle Rock, pool east of main pond Comment
  CDA6124  Elymus X hansenii D. G. Kelch 2007-5-12 7 .29 Contra Costa Carquinez Strait; Franklin Ridge, S of Hwy 4 at McEwen Rd. Comment
  CDA1574  Elymus glaucus D. G. Kelch 2002-5-24 2 .017 Contra Costa Carquinez Strait; 5th St. Prairie, Crockett. Comment
  SEINET252197  Elymus glaucus David Amme 1988-8-16 Contra Costa Kensington Comment
  UCD62270  Elymus glaucus J. B. Davy 1898-6-6 4242 Contra Costa Berkeley Hills. Comment
  UC691206  Elymus glaucus Mary L. Bowerman 1933-5-3 1988 Contra Costa Mountain Springs Canyon Mount Diablo (at trough for deer (later Pioneer fire rd was built across canyon at this spot), 3 ft from stream) Comment
  CAS-BOT-BC203431  Elymus glaucus subsp. glaucus Mary L. Bowerman 1934-4-21 2542 Contra Costa Mount Diablo. Beside Pioneer Camp road east of Pioneer Camp Comment
  UC691171  Elymus multisetus Mary L. Bowerman 1938-6-24 3690 Contra Costa Canyon Nook Mount Diablo (e side of creek) 670 Comment
  CAS-BOT-BC228538  Elymus multisetus Mary L. Bowerman 1935-5-25 3067 Contra Costa Mount Diablo. Meridian Peak south of the summit 1066 Comment
  UC692424  Elymus trachycaulus Mary L. Bowerman 1935-5-18 3030 Contra Costa n summit parkijng area; Mount Diablo 1066 Comment
  UC1819005  Elymus trachycaulus subsp. trachycaulus Barbara Ertter, Mary L. Bowerman 1994-6-19 12851 a Contra Costa Mt. Diablo State Park east of Walnut Creek; lower Summit parking lot, opening in chaparral near radio tower, ca 3600'. Comment
  JEPS108314  Emmenanthe penduliflora David Gowen 2005-5-24 389 Contra Costa Mt. Diablo. Near summit of knoll west of Mt. Zion. 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
  UC1818970  Epilobium campestre Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa 1995-10-22 14531 Contra Costa Three Springs Trail on northeast side of Mt. Diablo, south of crest of Marsh Creek Rd. dried roadside pond, clay. Comment
  UC692446  Epilobium campestre Mary L. Bowerman 1935-6-28 3173 Contra Costa s summit (vernal pool 300 yd e of meridian fence line); Mt. Diablo 487 Comment
  CAS-BOT-BC166166  Epilobium canum subsp. canum John Thomas Howell 1925-11-1 1536 Contra Costa Moraga Ridge, Oakland Hills Comment
  CAS-BOT-BC166825  Epilobium canum subsp. latifolium M. K. Curran 1883-10-1 s.n. Contra Costa [Marsh's] Marsh Creek 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
  UC1613486  Epilobium ciliatum subsp. ciliatum Charles M. Belshaw 1936-12-13 2746 Contra Costa near Berkeley Country Club (North Coast Range); North Coast Range 152 Comment
  UC125391  Epilobium ciliatum subsp. ciliatum Katharine Brandegee 1907-7-4 Contra Costa marsh Martinez Comment
  UC2028027  Epilobium ciliatum subsp. ciliatum Barbara Ertter 1997-9-14 15806 Contra Costa West side of Mount Diablo, Pine Creek upstream from Dusty Trail. Comment
  UC2028971  Epilobium ciliatum subsp. ciliatum Barbara Ertter 2000-7-16 17393 Contra Costa lower Pine Creek in Diablo Foothills Regional Park. Comment
  UC84478  Epilobium cleistogamum Katharine Curran Jun 1884 Contra Costa Antioch Comment
Read comments
Mar 27 2016
  JEPS38247  Epilobium densiflorum W. L. Jepson 1894-9-7 14401 Contra Costa Grizzly Peak Berkeley Hills Comment
  UC692448  Epilobium densiflorum Mary L. Bowerman 1931-6-16 929 a Contra Costa Chase Pond Mount Diablo 563 Comment
  UC692455  Epilobium minutum Mary L. Bowerman 1931-5-16 850 Contra Costa summit Mount Diablo Comment
  CDA9496  Epilobium pygmaeum D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .22 Contra Costa Byron Airport. Comment
  UC4498  Epipactis gigantea F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  UC692096  Epipactis gigantea Mary L. Bowerman 1931-5-28 906 Contra Costa Castle Rock Ranch Mount Diablo, Pine Canyon (e end, gully to s, on dry waterfall between two pools) Comment
  UCD63814  Eragrostis mexicana subsp. virescens Beecher Crampton 1965-9-29 7531 Contra Costa 1 mile south of Oakley, Cypress Road and O' Hara Ave. Comment
  JEPS111955  Eremocarpus setiger D. G. Kelch 2004-7-16 04 .320 Contra Costa Martinez - South Pine St. Entrance to Rte 4 heading west 70 Comment
  JEPS120294 Image available Eriastrum ertterae David Gowen 2005-7-1 471 Contra Costa Lime Ridge Open Space. South of summit near power line area. Comment
  OBI16592  Ericameria arborescens H. E. McMinn 1936-1 4453 Contra Costa Mt. Diablo Comment
  UC1118629  Ericameria arborescens R. W. Lundh 1932-8-29 153 Contra Costa 2/3 mi n of Eagle Point; Mt. Diablo Quadrangle 457 Comment
  UC61518  Ericameria arborescens A. B. Simonds Contra Costa Comment
  CAS-BOT-BC287528  Ericameria linearifolia H. E. McMinn 1922-6-2 96 Contra Costa From near summit of Mt Diablo Comment
  CAS-BOT-BC287530  Ericameria linearifolia W. W. Carruth 1902-4-29 s.n. Contra Costa Mt Diablo Comment
  CAS-BOT-BC287535  Ericameria linearifolia John Thomas Howell 1926-3-7 1673 Contra Costa Mt Diablo Comment
  POM196004  Ericameria linearifolia R. Raven 1929-3-31 s.n. Contra Costa Marsh Creek Canyon Comment
  UC1614256  Ericameria linearifolia Charles M. Belshaw 1935-6-10 697 Contra Costa Morgan Territory Rd. e. side of Mt. Diablo Comment
  UCD131420  Ericameria linearifolia David Scofield Wilson 1983-6-1 s.n. Contra Costa Mount Diablo. Comment
  JEPS99952  Erigeron foliosus var. franciscensis A. Langston 2003-6-30 AL 56 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  POM53857  Erigeron foliosus var. franciscensis L. R. Abrams 1916-6-30 5701 Contra Costa Mt. Diablo near lake Comment
  RSA22313  Erigeron petrophilus Joseph A. Ewan 1936-7-5 9735 Contra Costa Wildcat Creek. Comment
  CAS-BOT-BC295955  Erigeron philadelphicus Mary L. Bowerman 1935-5-16 2998 Contra Costa Mount Diablo. Russelman [Russellmann] Park road at Gregory Ranch junction 289 Comment
  CDA4941  Erigeron philadelphicus T. C. Fuller 1961-7-6 7370 Contra Costa South end of Antioch Bridge, Antioch. 0 Comment
  RSA517729  Erigeron philadelphicus Donald G. Nelson 1938-4-24 566 Contra Costa Marsh Creek Highway, 1 mile north of Mt. Diablo Comment
  CAS-BOT-BC216075  Eriodictyon californicum W. W. Carruth 1901-5-1 s.n. Contra Costa Moraga Valley Comment
  UC761971  Eriogonum angulosum R. F. Hoover 1937-9-2 2713 Contra Costa 4 mi n Antioch Comment
  UC762625  Eriogonum angulosum R. F. Hoover 1940-11-23 4694 Contra Costa Briones Valley Comment
  JEPS112016  Eriogonum fasciculatum subsp. foliolosum Dean G. Kelch and Andrew G. Murdock 2004-3-19 AGM 233 Contra Costa Hercules - Carbon. Comment
  CAS-BOT-BC250386  Eriogonum gracile Lewis S. Rose 1955-10-17 55187 Contra Costa Antioch 15 Comment
  JEPS99584  Eriogonum gracile Mary Bowerman 1994-6-19 Contra Costa Mount Diablo, main summit road just below lower parking lot. Comment
  UC1032304  Eriogonum gracile G. T. Nordstrom 1937-10-28 1409 Contra Costa 1.6 mi nne Somersville; Mt. Diablo Quadrangle Comment
  UC1094040  Eriogonum gracile Lewis S. Rose 1955-10-17 55187 Contra Costa sand hills, Antioch Antioch 15 Comment
  UC692049  Eriogonum gracile Mary L. Bowerman 1930-9-27 468 Contra Costa West base spring Mount Diablo Comment
  UC1795829  Eriogonum gracile Barbara Ertter, Mary L. Bowerman 1994-6-19 12847 a Contra Costa Mt. Diablo State Park east of Walnut Creek; lower Summit Parking Lot, roadside. Comment
  UC6565  Eriogonum gracile var. gracile Edw. L. Greene 1892-6-20 Contra Costa Mount Diablo Comment
  UC692050  Eriogonum gracile var. gracile Mary L. Bowerman 1930-9-9 458 Contra Costa North Peak, Mount Diablo Mount Diablo; above Gabriel-Hinks'? Comment
  SEINET8349867  Eriogonum nudum Barbara Ertter 1997-8-18 15766 Contra Costa Antioche Dunes (USFWS National Wildlife Refuge) on San Joaquin River east of Antioch, southwest corner of refuge north of railroad tracks in former vineyard. Comment
  CAS-BOT-BC268917  Eriogonum nudum var. auriculatum A. D. E. Elmer 1903-7-1 4546 Contra Costa Mount Diablo Comment
  JEPS75518  Eriogonum nudum var. auriculatum P. F. Yorks 1975-7-18 475 -A Contra Costa ca. 1.7 km s on Hampton Road in Hampton Road Natural Preserve Bear Creek Road (n of Briones Reservoir) 190 Comment
  JEPS75519  Eriogonum nudum var. auriculatum P. F. Yorks 1975-7-18 475 B Contra Costa on Hampton Rd ca 1.7 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Area 190 Comment
  UC521722  Eriogonum nudum var. auriculatum Joseph Andorfer Ewan 1933-10-15 8032 Contra Costa sw slope Mt. Diablo Mt. Diablo Comment
  UC692164  Eriogonum nudum var. auriculatum Mary L. Bowerman 1931-10-13 1060 Contra Costa east fork Alamo Canyon; Mount Diablo Comment
  UC692204  Eriogonum nudum var. auriculatum Mary L. Bowerman 1930-7-20 410 Contra Costa near Silver Spring; Mount Diablo Comment
  CAS-BOT-BC268905  Eriogonum nudum var. auriculatum H. E. McMinn No date on label 133 Contra Costa Collected from near summit of Mt. Diablo, N. slope Comment
  POM301012  Eriogonum nudum var. auriculatum Annetta Carter 1940-6-22 1601 Contra Costa Mount Diablo: Lime Ridge, north edge of south chaparral patch. 274 Comment
  UC2028205  Eriogonum nudum var. auriculatum Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15662 Contra Costa Point Richmond, crest of road. Comment
  JEPS56455  Eriogonum roseum Willis L. Jepson 1895-9-14 14779 Contra Costa Walnut Creek Comment
  SBBG28221  Eriogonum roseum J. Ewan 1933-10-15 8022 Contra Costa Mt Diablo Comment
  RSA766267  Eriogonum roseum Joseph A. Ewan 1933-10-15 8022 Contra Costa Grassy slope above Indian Ceremonial Spr., Mt. Diablo Comment
  CAS-BOT-BC267444  Eriogonum truncatum Mary L. Bowerman 1933-5-25 2198 Contra Costa Mount Diablo. Alamo Canyon: above Wilsons' barn Comment
  UC6492 Image available Eriogonum truncatum State Survey 1862-5-29 1186 Contra Costa Camp 71, Marsh's Ranch, Contra Costa Co. Comment
  UC692152  Eriogonum truncatum Mary L. Bowerman 1933-5-25 2198 Contra Costa Mount Diablo Comment
  CAS-BOT-BC262348  Eriogonum vimineum Mary L. Bowerman 1932-8-27 1524 Contra Costa Mount Diablo. South of Turtle Rock Comment
  POM301036  Eriophyllum confertiflorum Mary L. Bowerman 1933-6-3 2224 Contra Costa 2 miles by road from North Gate Comment
  CAS-BOT-BC300924  Eriophyllum jepsonii Mary L. Bowerman 1935-5-30 3087 Contra Costa Mount Diablo. Eagle Point ridge 304 Comment
  SEINET10761151  Eriophyllum jepsonii Barbara J. Ertter, Holly Forbes 1997-4-20 Ertter 15562 Contra Costa North base of Mount Diablo, Eagle Peak Trail on NE side of Eagle Ridge below Twin Peaks, mixed chaparral-brush with Ptelea et al. Comment
  CAS-BOT-BC300970  Eriophyllum lanatum var. achilleoides E. E. Stanford 1930-5-24 1513 Contra Costa Marsh Creek Canyon Comment
  JEPS34610  Eriophyllum lanatum var. achilleoides W. L. Jepson 1919-6-8 8328 Contra Costa Mt. Diablo Comment
  UC1118235  Eriophyllum lanatum var. achilleoides C. M. Belshaw 1936-5-8 2065 Contra Costa Plot 5 Mount Diablo Quadrangle, Mt. Diablo (se slope of mt.) Comment
  UC194915  Eriophyllum lanatum var. achilleoides H. M. Hall 1916-5-31 10134 Contra Costa s side of summit Mt. Diablo 1170 Comment
  UC697147  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1938-6-14 3687 Contra Costa 0.3 mi below Muir Area Mt. Diablo 960 Comment
  CAS-BOT-BC300966  Eriophyllum lanatum var. achilleoides L. Constance 1933-6-25 E 94 Contra Costa Near the base of Mount Diablo Comment
  CAS-BOT-BC300975  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1930-6-28 388 Contra Costa Mount Diablo Comment
  CAS-BOT-BC300982  Eriophyllum lanatum var. achilleoides Lincoln Constance; Helen Sharsmith; Carl Sharsmith 1933-4-30 E 17 Contra Costa Black Hills, Mount Diablo Comment
  LA203600  Eriophyllum lanatum var. achilleoides Lincoln Constance; 1933-6-25 E 94 Contra Costa Mount Diablo, near the southeastern base Comment
  POM301035  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1933-6-21 2339 Contra Costa Donner Canyon Comment
  UC507051  Eriophyllum lanatum var. achilleoides H. K. Sharsmith and C. W. Sharsmith 1933-4-30 E 17 Contra Costa Black, Hills; Mount Diablo 304 Comment
  UC31762  Eriophyllum staechadifolium H. M. Hall 1901-3-16 1650 Contra Costa Point Richmond San Francisco Bay region, Point Richmond Comment
  UC2032834  Erodium cicutarium Doran, Andrew Scott 2012-3-20 704 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  CHSC21643  Erodium moschatum Willis Ball 1975-3-2 463 Contra Costa Contra Loma Regional Park. In area #1. In island in middle of main parking lot on s side of lake. 38 Comment
  UC692317  Eryngium aristulatum var. aristulatum Mary L. Bowerman 1936-6-20 3417 Contra Costa w. Mt. Zion (near rd. to Matthew's house (s.w. 1/4 section 15), just below house); Mt. Diablo Comment
  POM133545  Eryngium aristulatum var. aristulatum Katherine Brandegee 1907-5-16 s.n. Contra Costa [Unspecified] Comment
  JEPS17451  Eryngium armatum W. L. Jepson 1922-7-9 9732 Contra Costa Richmond Comment
  JEPS78607  Eryngium articulatum Walter Knight, L. R. Heckard, and Bert Johnson 1978-9-28 3291 Contra Costa Browns Island, Botany Cove Comment
  UC21001  Eryngium articulatum J. W. Congdon Sept. 1886 Contra Costa Comment
  JEPS99526  Eryngium castrense Mary L. Bowerman 1975-9-14 Contra Costa Mount Diablo, Hidden Pond. Comment
  UC692318  Eryngium castrense Mary L. Bowerman 1935-6-28 3169 Contra Costa Mt. Diablo, Chase Pond 548 Comment
  UC2026171  Eryngium castrense Barbara Ertter with Tony Morosco 1996-1-15 14547 Contra Costa Mount Diablo (southeast side) trail from Curry Point to Frog Pond; edge of Sheepherder Pond. Comment
  UC1122965  Eryngium vaseyi B. Schreiber 1937-6-12 2400 Contra Costa Byron Byron Quad., Byron 15 Comment
  CAS-BOT-BC40759  Erysimum capitatum L. R. Abrams 1921-5-25 8020 Contra Costa Near summit Mount Diablo. Comment
  UC1126602  Erysimum capitatum R. C. Wilson 1935-3-28 152 Contra Costa 1 mi s Mount Diablo; Mt. Diablo Quadrangle Comment
  UC691089  Erysimum capitatum Mary L. Bowerman 1930-6-14 322 Contra Costa open places near summit (nw exposure); Mount Diablo, Meridian Peak Comment
  RSA0008588  Erysimum capitatum var. angustatum G. B. Rossbach, Ruth P. Rossbach 1938-6-5 858 Contra Costa Along tidal estuary of San Joaquin River, just east of Antioch Comment
  UC2046330  Erythranthe guttata Barbara Ertter with Alan Prather 2003-6-7 18201 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, creek alongside west end Stone Corral Trail, south of Highland Ridge Trail junction. Comment
  UC2046327  Erythranthe nasuta Barbara Ertter with Alan Prather 2003-6-7 18210 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, Coyote Trail. Comment
  SJSU5799  Eschscholzia caespitosa C. O. Dudley 1966-3-30 Contra Costa Briones Hills 10 mi SW of Martinez 182 Comment
  CAS-BOT-BC402981  Eschscholzia californica A. Eastwood 1894-5-4 s.n. Contra Costa Walnut Cr. Comment
  CAS-BOT-BC402984  Eschscholzia californica A. A. Heller 1908-4-17 8904 Contra Costa Hills three miles south of Antioch 18 Comment
  UC10018  Eschscholzia californica J. Burtt Davy April 1897 Contra Costa Point Isabel Comment
  UC2012983  Eschscholzia californica Barbara Ertter with Tony Morosco 1996-7-27 15039 Contra Costa Mount Diablo State Park, Cardinet Oaks Road at crossing of Donner Creek. Comment
  UCD84944  Eschscholzia californica Chuck Hughes 2010-3-29 216 Contra Costa About 0.7 mile south of Vasco Road. 238 Comment
  UC1538790  Euonymus occidentalis var. occidentalis S. W. Edwards 1987-11-20 Contra Costa along Wildcat Creek below the Brazilian Building Tilden Regional Park; , Wildcat Creek 263 Comment
  UC692712  Euphorbia crenulata Mary L. Bowerman 1935-3-16 2742 Contra Costa e fork Arroyo del Cerro; Mount Diablo 289 Comment
  RSA224327  Euphorbia crenulata Paul F. Covel 1938-5-1 1496 Contra Costa Old Tunnel Road. Comment
  CDA35612  Euphorbia oblongata V. Guise 2011-5-2 PDR# 1649668 Contra Costa Danville; 2600 Finley Road. 0 Comment
  SJSU8143  Euphorbia oblongata L. W. Main 1972-5-5 Contra Costa 2 mi W of Martinez in Franklin Canyon Comment
  UC1555266  Euphorbia oblongata R. C. Stebbins 1988-5-19 Contra Costa Tilden Park; Memory Trail about 50 yds ne of intersection with Canon Drive Comment
  OBI5339  Euphorbia oblongata T. C. Fuller 1961-7-6 6585 Contra Costa On bench above crk, Alhambra Valley, hwy 4, 0.5 mi W of Glen Frazier Station, ca 4 mi W of Martinez Comment
  UCD142410  Euphorbia oblongata Thomas C. Fuller 1958-7-30 s.n. Contra Costa State Highway 4; 3 miles west of Martinez. 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
  CDA5288  Euthamia occidentalis D. G. Kelch 2004-9-2 4 .333 Contra Costa Carquinez Strait Region; Pacheco Marsh. Marsh east of Martinez and I-680 and east of lone tree Marsh. Comment
  JEPS111732  Euthamia occidentalis D. G. Kelch 2004-9-2 04 .333 Contra Costa Pacheco Marsh east of Martinez and I-680 and east of lone tree Marsh 5 Comment
  UC202854  Euthamia occidentalis V. King Chesnut 1887-9-10 Contra Costa Mt. Diablo Comment
  UC1594167  Euthamia occidentalis Jerry Powell 1991-10-10 1617 Contra Costa Antioch National Wildelife Refuge Comment
  JEPS127258  Festuca bromoides Lowell Ahart, Josephine Guardino 2016-4-19 20798 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest to Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  UC692354  Festuca californica Mary L. Bowerman 1935-5-3 2953 Contra Costa hillside below Jungle of the Garden Gods; Mount Diablo, Rock City Ridge 472 Comment
  CAS-BOT-BC278318  Festuca californica subsp. californica Mary L. Bowerman 1931-4-25 757 Contra Costa Mount Diablo. Near junction of south and west roads Comment
  UC1949268  Festuca microstachys Barbara Ertter 1991-5-5 9779 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, ridge E of Coal Canyon, N-facing slope Comment
  UC2028144  Festuca microstachys Barbara Ertter 1998-4-4 15971 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, Fossil Hill. Comment
  JEPS127231  Festuca microstachys var. pauciflora Lowell Ahart, Josephine Guardino 2016-4-19 20792 Contra Costa 2.3 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest to Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  CDA32670  Festuca pratensis D. G. Kelch, Andrew G. Murdock 2004-5-7 4 .195 Contra Costa Carquinez Strait; Canada del Cierbo. Comment
  JEPS107107  Festuca rubra Barbara Ertter, Brad Olson 1994-5-7 12752 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  UC2070578  Ficus carica Barbara Ertter with Tony Morosco 1996-7-27 15035 Contra Costa North side of Mount Diablo, Donner Cabin site on lower Donner Canyon Road. Comment
  CDA133  Forestiera pubescens D. G. Kelch, D. A. Weinstein 2007-10-14 7 .635 Contra Costa Carquinez Strait; Martinez. Rankin Park. Comment
  UC12223  Fragaria vesca W. H. Brewer 1862-5-23 1145 Contra Costa se of Mount Diablo 609 Comment
  JEPS74307  Frankenia salina John Thomas Howell and Gordon H. True 1972-6-29 48919 Contra Costa Byron Hot Springs Road se Byron Comment
  UCD99612  Frankenia salina M. Wiesendanger 1926-6-1 1776 Contra Costa Richmond. Comment
  JEPS16560  Fremontodendron californicum H. H. Haworth 1917-5-3 Contra Costa Redwood Peak, Oakland Hills Comment
  UC692002  Fritillaria affinis Mary L. Bowerman 1931-3-8 561 Contra Costa Mount Diablo, near mouth of Mitchell Canyon Mitchell Canyon; Mount Diablo, Mitchell Canyon Comment
  CAS-BOT-BC136073  Fritillaria affinis Dean William Taylor 1971-3-28 971 Contra Costa Along Morgan Territory Road 304 Comment
  JEPS61883  Fritillaria agrestis Miss Linda Gehringer 1915-3-27 Contra Costa east side of Mount Diablo Mount Diablo Comment
  JEPS55706  Fritillaria liliacea W. Hirano 1954-3-11 Contra Costa opposite Mira Vista Country Club (at Arlington Avenue); Arlington Avenue Comment
  CDA3561  Fumaria capreolata D. G. Kelch, A. G. Murdock 2005-5-5 5 .208 Contra Costa Carquinez Strait Region; Point Pinole - Giant Marsh. Giant Salt Marsh. Comment
  UC1789195  Fumaria capreolata Barbara Ertter 1999-3-21 16486 Contra Costa Miller Knox Regional Park near Point Richmond, edge of old excavation into rock (southeast of Richmond Ramblers building). Comment
  RSA87348  Galium andrewsii F. W. Peirson 1923-07 4730 Contra Costa Near summit of Mt. Diablo. 1159 Comment
  JEPS52812  Galium andrewsii subsp. gatense Lauramay T. Dempster 1965-5-2 4090 Contra Costa above Bridlepath Campground; Mount Diablo 701 Comment
  JEPS7032  Galium andrewsii subsp. gatense Mary L. Bowerman 1930-6-7 283 Contra Costa Meridian Peak summit Mount Diablo Comment
  UC28155  Galium andrewsii subsp. gatense F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  UC691532  Galium andrewsii subsp. gatense Mary L. Bowerman 1930-6-7 283 Contra Costa summit Mount Diablo Comment
  CDA33841  Galium andrewsii subsp. gatense D. G. Kelch 2010-5-15 10 .119 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 Comment
  UC1948947  Galium aparine William J. Ferlatte, L. Maynard Moe 1970-4-27 1247 Contra Costa San Francisco Bay: Red Rock Island Comment
  UCD121622  Galium aparine Robert C. Bechtel 1952-4-12 58 Contra Costa West side Mt. Diablo. 914 Comment
  CHSC117389  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, steep rocky S-facing bowl. 1036 Comment
  UC28251  Galium porrigens Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  UC1051202  Galvezia speciosa N. Floy Bracelin 1944-6-6 2717 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  UC697199  Gamochaeta ustulata Mary L. Bowerman 1942-6-1 3846 Contra Costa Lower Rock City Camp Mount Diablo Comment
  UC697203  Gamochaeta ustulata Mary L. Bowerman 1938-6-2 3654 Contra Costa 100 yds n Rock City Camp; Mount Diablo, Dan Cook Canyon 548 Comment
  CAS-BOT-BC303366  Gamochaeta ustulata Mary L. Bowerman 1942-6-1 3846 Contra Costa Mt Diablo. Lower Rock City Camp Comment
  CAS-BOT-BC303370  Gamochaeta ustulata Gordon H. True 1975-6-27 7872 Contra Costa Tilden Regional Park Botanic Garden, Wildcat Canyon Comment
  CAS-BOT-BC200623  Garrya elliptica John Thomas Howell 1926-1-16 1625 Contra Costa Head of San Leandro Canyon, Oakland Hills Comment
  CAS-BOT-BC200636  Garrya elliptica C. H. M. 1919-8-24 s.n. Contra Costa Las Trampas Peak Comment
  UC1122641  Garrya elliptica R. C. Wilson 1935-3-29 163 Contra Costa 1 mi w Deer Flat; Mt. Diablo Quad. 685 Comment
  UC2029048  Garrya elliptica Barbara Ertter with Linda Vorobik 2000-1-9 16890 Contra Costa Las Trampas Regional Wilderness in East Bay Hills west of Danville. Comment
  CAS-BOT-BC282608  Gastridium phleoides Mary L. Bowerman 1933-5-25 2190 Contra Costa Oyster Ridge, west end of south face, Mount Diablo Comment
  CAS-BOT-BC282611  Gastridium phleoides Mary L. Bowerman 1935-7-22 3191 Contra Costa Hidden Pond, Mount Diablo Comment
  SEINET10963567  Gastridium phleoides Virginia E. Long 1933-6-14 Long 224 a Contra Costa Mt. Diablo. Grassy ridge of Curry Cave trail. 366 Comment
  JEPS112350  Genista monspessulana Dean G. Kelch and Andrew G. Murdock 2004-4-11 04 .077 Contra Costa Crockett - Crolona Heights, County: Contra Costa; Crockett: W base of Crolona heights. Comment
  JEPS111976  Geranium dissectum D. G. Kelch 2004-4-3 04 .49 Contra Costa Martinez - Vine Hill 44 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
  SD41283  Geranium dissectum McCallum 1933-4-26 3698 Contra Costa Damp roadside on the way to Tassajara Comment
  UCD103337  Geranium dissectum Morris Halperin 1929-4-21 s.n. Contra Costa Moraga Valley. Comment
  UC1719978  Geranium purpureum Barbara Ertter 2000-5-14 17012 Contra Costa Mount Diablo Regional Park, Falls Trail at Donner Creek crossing 487 Comment
  JEPS111982  Geranium robertianum D. G. Kelch 2005-5-13 05 .254 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Area along Vista Road ~ 2.5 kiloms West of Martinez 45 Comment
  CHSC102194  Geranium rotundifolium Barbara Ertter 1996-6-4 14684 Contra Costa Tilden Regional Park in hills east of Berkeley, restoration site northeast of junction of Grizzly Peak boulevard and GolF Course Drive. Comment
  UC691602  Gilia achilleifolia subsp. multicaulis Mary L. Bowerman 1930-6-7 286 Contra Costa summit of Meridian Peak Mt. Diablo, Meridian Peak Comment
  UC963984  Gilia achilleifolia subsp. multicaulis R. F. Hoover 1941-4-11 4831 Contra Costa Marsh Creek Canyon Comment
  RSA8346  Gilia capitata subsp. staminea L. S. Rose 1933-4-17 33090 Contra Costa Antioch. Comment
  UC134012  Gilia capitata subsp. staminea C. F. Baker 1903-4-25 2805 Contra Costa Antioch Comment
  RSA469347  Gilia capitata subsp. staminea H. de Forest 1930-5-6 s.n. Contra Costa [Unspecified] Comment
  RSA84900  Gilia capitata subsp. staminea G. Thomas Robbins 1940-5-19 323 Contra Costa on hills bordering the San Joaquin River e. g. Antioch Comment
  UC909004  Gilia clivorum Herbert L. Mason 1928-4-15 4358 Contra Costa top Moraga Ridge; top of Moraga Ridge Comment
  UCR124270  Gilia multicaulis L. S. Rose 1935-5-16 35175 Contra Costa Mt. Diablo Comment
  CDA927  Gilia tricolor D. G. Kelch 2004-3-13 4 .042 Contra Costa Road cut on Marsh Creek Road ~ 1.5 miles W of Deer Valley Road. Comment
  UC691592  Githopsis diffusa subsp. robusta Mary L. Bowerman 1935-5-3 2952 Contra Costa below Jungle of the Garden Gods (Rock City Ridge (= Fossil Ridge)); Mount Diablo, Rock City Ridge 487 Comment
  UC697200  Gnaphalium palustre Mary L. Bowerman 1935-6-28 3168 Contra Costa s of summit Mount Diablo (by Old Government trail); , Chase Pond 548 Comment
  UCR197918  Gnaphalium palustre Beecher Crampton 1950-6-20 595 Contra Costa 1 mile north of Richmond, Triangle Court 9 Comment
  CAS-BOT-BC303201  Gnaphalium palustre J. (Germany) Bauer 1851-5-1 s.n. Contra Costa At Mt Diablo [Ad Mond Diabalo] Comment
  UCD32426  Gnaphalium palustre Beecher Crampton 1950-6-20 595 Contra Costa Contra Costa County, 1 mile north of Richmond, Triangle Court. Comment
  CDA31363  Gnaphalium ramosissimum D. G. Kelch 2006-8-11 6 .373 Contra Costa Carquinez Strait.; Top of Edward s Canyon. Crockett. Comment
  POM721360  Gnaphalium stramineum Barbara Ertter, Richard K. Rabeler 1994-6-6 12817 Contra Costa Point Isabel in S Richmond; on old railroad bed north of Costco. Comment
  UC35376 Image available Godetia blasdalei W. C. Blasdale 1893-7-11 Contra Costa Point Isabel Comment
  OBI16390  Grindelia camporum Robert F. Hoover 1966-8-31 9945 Contra Costa 1.5 mi E of Danville, at jctn of Tassajara and Freitas Rds. Comment
  CAS-BOT-BC305237  Grindelia hirsutula Lewis S. Rose 1954-9-27 54116 Contra Costa Byron 6 Comment
  JEPS111758  Grindelia hirsutula D. G. Kelch 2005-5-13 05 .243 Contra Costa Martinez. South of oil refinery along Railroad tracks in fragment of habitat 28 Comment
  JEPS19400  Grindelia hirsutula G. Thomas Robbins 1937-4-17 135 Contra Costa near Point Richmond Comment
  JEPS20303  Grindelia hirsutula Lewis S. Rose 1954-11-23 54136 Contra Costa 1 mi s Pittsburg 15 Comment
  JEPS25015  Grindelia hirsutula G. Thomas Robbins 1958-10-2 3941 Contra Costa just w Carlson Blvd. (near Stege railroad siding, along Southern Pacific Railroad); Richmond Comment
  JEPS25016  Grindelia hirsutula G. Thomas Robbins 1958-10-2 3941 Contra Costa just w Carlson Blvd. (near Stege railroad siding, along Southern Pacific Railroad); Richmond Comment
  JEPS41047  Grindelia hirsutula Rimo Bacigalupi with L. R. Heckard 1965-5-11 9072 Contra Costa strand at n end Brooks Island (San Francisco Bay sw of Richmond); San Francisco Bay, Brooks Island Comment
  JEPS46451  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
  JEPS97539  Grindelia hirsutula R. D. Stone 1983-9-16 579 Contra Costa 4.5 mi SW Byron Hot Springs; Brushy Creek; SE1/4 of NW1/4 152 Comment
  UC2013035  Grindelia hirsutula Barbara Ertter with Travis Columbus 1990-6-10 9099 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill; trail heading down ridge on N side of Briones Peak, at junction with Spengler Trail. Comment
  UC2042497  Grindelia hirsutula Barbara Keller 2007-7-10 Contra Costa Mt. Diablo State Park, along Summit Rd. Comment
  CAS-BOT-BC305221  Grindelia hirsutula J. T. Howell 1930-9-28 5496 Contra Costa Liberty School on Marsh Creek Road Comment
  CAS-BOT-BC305224  Grindelia hirsutula John Thomas Howell 1930-9-28 5495 Contra Costa Liberty School on Marsh Creek Road Comment
  SEINET3140051  Grindelia hirsutula M. P. Dunford 1980-7-30 1510- 12 -2 Contra Costa Cultivated specimen from seed collected just W of Antioch Bridge over the San Joaquin River Comment
  POM193965  Grindelia hirsutula var. davyi J. T. Howell 1929-7-7 4332 Contra Costa 2 miles S of Rodeo. Comment
  JEPS20871  Guillenia flavescens J. Burtt Davy 1895-4-7 969 Contra Costa Antioch Comment
  UC205988  Guillenia flavescens Katharine Brandegee Contra Costa Antioch Comment
  RSA34731  Guillenia flavescens R. C. Rollins 1946-3-25 3046 Contra Costa Western slope of Mount Diablo. Comment
  UC205978  Guillenia lasiophylla Katharine Brandegee Contra Costa Byron Springs Comment
  UC56947  Guillenia lasiophylla H. M. Hall 1900-3-24 579 Contra Costa Briones Valley San Francisco Bay Region Comment
  CAS-BOT-BC304579  Gutierrezia californica John Thomas Howell 1929-9-21 4394 Contra Costa Marsh Creek Road 10 1/2 miles se. of Clayton Comment
  UC2070544  Gypsophila elegans Barbara Ertter with David Gowen, J. Ginochio, M. Park, S. Matson, A. Moore, S. D'Alcamo, J. Greenhouse, K. Kersh and J. Gawthrup 2005-5-8 18562 Contra Costa Moses Rock Ridge on west side of Mount Diablo; Deer Flat Road a short distance south of junction with Burma Road. Comment
  UC1051002  Hebe buxifolia N. Floy Bracelin 1943-7-19 2549 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  UC1050778  Hebe laevis N. Floy Bracelin 1943-6-6 2147 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  UC1050044  Hebe traversii N. Floy Bracelin 1944-7-23 1507 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  RSA721868D  Hedypnois cretica Barbara Ertter 1994-5-23 12809 Contra Costa Point Isabel at S end Richmond, Regional Shoreline and marsh at end of Rydin Road. Comment
  SD241751  Hedypnois cretica Barbara Ertter 1994-5-23 12809 Contra Costa Point Isabel at S end Richmond, Regional Shoreline and marsh at end of Rydin Road. Weedy area of parking lot. Comment
  UC1795633  Hedypnois rhagadioloides Barbara Ertter 1994-5-23 12809 Contra Costa Point Isabel at S end Richmond, Regional Shoreline and marsh at end of Rydin Road Comment
  UC32237  Helenium bigelovii Jos. Burtt Davy 1900-6-7 6671 Contra Costa near Martinez Comment
  UC552471  Helenium bigelovii C. L. Swenson 1936-7-9 Contra Costa river sloughs near Antioch; San Joaquin River Comment
  JEPS111680  Helenium puberulum D. G. Kelch 2003-8-13 03 .134 Contra Costa Pinole Creek 68 Comment
  CAS-BOT-BC309407  Helenium puberulum John Thomas Howell; Gordon H. True 1972-6-29 48932 Contra Costa On Byron Hot Springs Road southeast of Byron Comment
  JEPS85476  Helianthella castanea Leonora M. Ellis 1990-5-11 Contra Costa w Alamo (Horseman's Canyon and canyon to the w); Tice Valley 228 Comment
  JEPS86722  Helianthella castanea James A. Martin 1991-5-21 Contra Costa 800 ft se Castro Ranch (ca 1 mi n of nw end of San Pablo Dam) 182 Comment
  CAS-BOT-BC223916  Helianthemum scoparium Robert F. Hoover 1939-5-20 4108 Contra Costa Head of Markley Canyon Comment
  CDA31041  Helianthemum scoparium D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .229 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  JEPS79317  Helianthus annuus Edward Lee 1935-8-13 1615 Contra Costa just e War Memorial (between Walnut Creek and Concord); Ygnacio Valley 15 Comment
  CAS-BOT-BC305373  Helianthus annuus Walter Knight 1978-8-19 3234 Contra Costa Along Fredericksen Lane. Contra Loma Regional Park Comment
  CAS-BOT-BC305671  Helianthus gracilentus Mary L. Bowerman 1932-10-1 1602 Contra Costa Mount Diablo. Mitchell Canyon Comment
  UC697184  Helianthus gracilentus Mary L. Bowerman 1935-5-22 3055 Contra Costa Saddle w of Twin Peaks ((Eagle Point Ridge)); Mount Diablo Comment
  UC2070511  Helianthus gracilentus Barbara Ertter 2002-5-11 17844 Contra Costa Southwest side of Mount Diablo, Wall Point Road north of Sentinel Rock in Rock City Area. Comment
  UC691488  Helianthus gracilentus Mary L. Bowerman 1933-5-11 2074 Contra Costa most westerly part 1931 burn; Mount Diablo, Inner Black Hills Comment
  UC1795840  Helianthus tuberosus Barbara Ertter 1995-9-30 14526 Contra Costa North bank of Cerrito Creek at end of Yosemite Avenue in El Cerrito, foot of Albany Hill; stonework bank at edge of overgrown sluggish creek. Comment
  UC407041  Heliotropium curassavicum Ira L. Wiggins 1930-4-18 4606 Contra Costa Jersey Isl. Comment
  UCD36034  Heliotropium curassavicum var. oculatum Beecher Crampton 1949-7-15 486 Contra Costa Contra Costa County, below original site of Judsonville, head of Lone Tree Valley, along Sand Creek, just before coming to Lee Higgins Empire Ranch. 114 Comment
  CAS-BOT-BC305876  Helminthotheca echioides Walter Knight; Irja Knight 1978-8-14 3160 Contra Costa Browns Island Comment
  CDA7053  Hemizonia congesta subsp. luzulifolia D. G. Kelch 2006-7-14 6 .333 Contra Costa Between Rte 4 and Carbon Rd. E Rodeo. Comment
  CDA8366  Hemizonia congesta subsp. luzulifolia D. G. Kelch 2003-11-24 3 .341 Contra Costa Carquinez Strait; Between Bull Valley Staging Area and Port Costa. Comment
  JEPS38255  Hemizonia congesta subsp. luzulifolia W. L. Jepson 1940-6-5 19935 Contra Costa Richmond Comment
  UC1536900  Hemizonia congesta subsp. luzulifolia Gordon H. True Jr. 1937-10-12 838 Contra Costa near Pinole 30 Comment
  UC697174  Hemizonia congesta subsp. luzulifolia Mary L. Bowerman 1933-5-25 2197 Contra Costa s-facing slope between forks of branch of Alamo Creek on s side main ridge; Mount Diablo, Oyster Ridge Comment
  UC762755  Hemizonia congesta subsp. luzulifolia R. F. Hoover 1939-4-25 4061 Contra Costa Richmond hills Richmond Comment
  UC990639  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1909-9-24 Contra Costa San Ramon Comment
  CAS-BOT-BC314867  Hemizonia congesta subsp. luzulifolia John Thomas Howell 1955-8-24 30900 Contra Costa Near Diablo Country Club Comment
  SEINET5126926  Hemizonia kelloggii Kellogg 1870-4-22 s.n. Contra Costa Near Antioch Comment
  RSA81510  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1909-9-25 s.n. Contra Costa Walnut Creek. Comment
  SEINET7883479 Image available Hemizonia obconica Lewis S. Rose 1938-1 38309 Contra Costa Marsh Creek, 8 mi. w. of Byron 61 Comment
  POM215122  Hemizonia parryi subsp. congdonii D. D. Keck 1933-11-2 2610 Contra Costa San Ramon, Crow Creek Canyon road, 0.5 miles from turnoff Comment
  CHSC21758  Heracleum lanatum Carol Getzinger 1964-4-26 52 Contra Costa Arlington Boulevard at Cutting Boulevard. 30 Comment
  CAS-BOT-BC167428  Hesperolinon breweri M. K. Curran 1884-1-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC167430  Hesperolinon breweri Volney Rattan 1886-6-1 s.n. 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
  RSA135385  Hesperolinon breweri Volney Rattan 1886-06 s.n. Contra Costa Mount Diablo Comment
  UC692694  Hesperolinon breweri Mary L. Bowerman 1935-6-15 3137 Contra Costa Eagle Point Ridge w 2632; Mount Diablo 762 Comment
  UC692701  Hesperolinon breweri Mary L. Bowerman 1935-5-22 3058 Contra Costa saddle w Twin Peaks ((Eagle Point Ridge)); Mount Diablo 441 Comment
  SJSU764  Hesperolinon californicum D. Bernsdorf 1942-5-30 Contra Costa Mt Diablo Comment
  UC35090  Hesperomecon linearis W. C. Blasdale 1893-5-13 Contra Costa Antioch Comment
  UC725833  Hesperomecon linearis A. A. Heller 1908-4-16 8890 Contra Costa East of Antioch 22 Comment
  RSA144610  Hesperomecon linearis W. R. Ernst 1958-3-26 214 Contra Costa Sandhill bluffs facing the water between Antioch and Antioch bridge Comment
  CAS-BOT-BC143645  Heteromeles arbutifolia Volney Rattan 1888-8-6 s.n. Contra Costa Oakland Creek, Oakland Comment
  JEPS111693  Heterotheca grandiflora D. G. Kelch 2004-4-3 04 .52 Contra Costa Martinez - Vine Hill West of 680. North of highway 4. 44 Comment
  UC2028005  Heterotheca grandiflora Barbara Ertter with Amy Rusev 1998-1-17 15900 Contra Costa edge of Lime Ridge Open Space at NW foot of Mount Diablo, around former quarry [subsequently developed] on south side of Ygnacio Valley Road. Comment
  UC691817  Heterotheca sessiliflora subsp. echioides Mary L. Bowerman 1930-12-2 501 Contra Costa near base Mount Zion; Mount Diablo Comment
  CAS-BOT-BC310908  Heterotheca villosa Niall McCarten; V. I. Dains 1986-1-1 04311257 81 Contra Costa East Contra Costa County. SW corner of Hwy. 4 & Laurel Road near Oakley Comment
  CDA23596  Holocarpha heermannii D. G. Kelch 2007-10-6 7 .63 Contra Costa Carquinez Strait; Fernandez Ranch. Muir Land Trust Property 4.5 km W of Rodeo. Comment
  JEPS13469  Holocarpha heermannii W. L. Jepson 1895-9-14 Contra Costa Walnut Creek Comment
  UC89060  Holocarpha heermannii T. S. Brandegee 1887-5-1 Contra Costa near Antioch Comment
  CAS-BOT-BC325829  Holocarpha heermannii John Thomas Howell 1930-9-28 5487 Contra Costa 1 mile from Walnut Creek on Walnut Avenue to Concord Comment
  CAS-BOT-BC325847  Holocarpha heermannii Walter Knight; Harry Reeves 1979-8-25 3403 Contra Costa Contra Loma Regonal Park near Antioch 22 Comment
  POM179765  Holocarpha heermannii J. T. Howell 1930-9-28 5499 Contra Costa 6.3 miles from Byron on the Marsh Creek Road. Comment
  UC691478  Holocarpha heermannii Mary L. Bowerman 1931-9-12 1039 Contra Costa 838 Comment
  SJSU7097  Holocarpha macradenia D. J. Powers 1974-10-6 1001 A Contra Costa 100-300' E of Interstate Hwy 80 & 100-300 yards S of Appian Way, Pinole Comment
  SJSU7098  Holocarpha macradenia D. J. Powers 1974-10-6 1001 B Contra Costa 100-300' E of Interstate Hwy 80 & 100-300 yards S of Appian Way, Pinole Comment
  CAS-BOT-BC320222  Holocarpha macradenia Walter Knight; Irja Knight 1977-9-12 3159 Contra Costa At SE corner of Appian Way and Highway I-80. Pinole 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
  RSA0033853  Holocarpha obconica Barbara Ertter 2002-11-11 18072 Contra Costa Round Valley Regional Preserve east of Mount Diablo, along Round Valley Creek/Miwok Trail. 91 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
  CAS-BOT-BC324617  Holocarpha virgata R. F. Hoover 1965-9-24 9648 Contra Costa Foothills west of Byron east of Kellogg Creek Comment
  SEINET5782142 Image available Holocarpha virgata L. S. Rose 1941-10-16 41467 Contra Costa 2 mi W of Byron Comment
  UC2029132  Holocarpha virgata subsp. virgata Barbara Ertter with David Gowen and Mike Park 2004-6-13 18372 Contra Costa Black Diamond Mines Regional Preserve, forks of Old Homestead Loop Trail. Comment
  JEPS112082  Holodiscus discolor D. G. Kelch 2004-3-12 04 .31 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road. Contra Costa County, CA 220 Comment
  JEPS99981  Holodiscus discolor A. Langston 2003-6-12 AL 40 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SEINET4090611  Holodiscus discolor B. C. Templeton 1962-1 sn Contra Costa Mountain Diablo. Comment
  UC691112  Holodiscus discolor Mary L. Bowerman 1930-6-26 376 b Contra Costa Clayton-Livermore Road s of Riggs Canyon Road (Mount Diablo); , Clayton-Livermore Road Comment
  CAS-BOT-BC152592  Holodiscus discolor var. discolor V. Rattan 1886-6-1 s.n. Contra Costa Near Martinez Comment
  JEPS100015  Hordeum brachyantherum S. O'Neil 2003-5-8 SEO 34 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD36924  Hordeum brachyantherum Beecher Crampton 1956-5-14 3413 Contra Costa 1 mile east of Pacheco, Buchanan Field. Comment
  CHSC116612  Hordeum marinum subsp. gussoneanum Lowell Ahart; Josephine Guardino 2016-4-19 20800 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  UC1132529  Hordeum marinum subsp. gussoneanum C. M. Belshaw 1936-5-7 2049 Contra Costa 2 mi s Danville; Mt. Diablo Quad. Comment
  UCD85808  Hordeum marinum subsp. gussoneanum Brandegee 1916-5-9 s.n. Contra Costa Byron Springs. Comment
  UCD85827  Hordeum marinum subsp. gussoneanum Beecher Crampton 1956-5-14 3411 Contra Costa 1 mile east of Pacheco, Buchanan Field. Comment
  UCD85876  Hordeum marinum subsp. gussoneanum P. B. Kennedy 1929-4-24 s.n. Contra Costa Corner of Franklin Canyon Road near Concord, near Soldiers Monument. Comment
  UC50687  Hordeum murinum subsp. leporinum Jos. Burtt Davy 1900-3-24 6536 Contra Costa Point Richmond Comment
  UC50688  Hordeum murinum subsp. leporinum Jos. Burtt Davy 1899-4-19 7868 Contra Costa Moraga Valley Comment
  UC521670  Horkelia californica subsp. dissita Joseph Andorfer Ewan 1933-10-15 8023 Contra Costa Above Indian Ceremonial Spr.; Mt. Diablo Comment
  UC691094  Horkelia californica subsp. dissita Mary L. Bowerman 1932-11-25 1666 Contra Costa Mount Diablo, Silver Spring Comment
  JEPS112088  Horkelia californica subsp. frondosa D. G. Kelch 2004-5-2 04 .164 Contra Costa Crockett - Edwards Canyon 125 Comment
  JEPS112098  Horkelia californica subsp. frondosa D. G. Kelch 2005-5-1 05 .192 Contra Costa Crockett - Edwards Canyon. On shady bank 150 Comment
  CAS-BOT-BC532053  Horkelia californica var. frondosa Joseph Andorfer Ewan 1934-5-20 8926 Contra Costa Russelmann Park, n. side Mt. Diablo Comment
  UC1795762  Hydrocotyle verticillata Barbara Ertter, Lincoln Constance 1995-6-16 14260 Contra Costa East edge Dow Marsh on west side Antioch Marina, south side San Joaquin River in Delta area, mud on riprap. Comment
  UC691697  Hydrophyllum occidentale Mary L. Bowerman 1930-6-10 311 Contra Costa Mount Diablo summit; Mount Diablo Comment
  JEPS75561  Hypochaeris glabra P. F. York 1974-4-19 136 Contra Costa 1.7 km s of Bear Creek Rd Hampton Road; Hampton Road Natural Reserve. Briones Reservoir 170 Comment
  RSA31351  Hypochaeris glabra Joseph A. Ewan 1936-5-24 9692 Contra Costa W slope Bald Peak, head Wildcat Creek. Comment
  CAS-BOT-BC311408  Hypochaeris radicata R. E. Frenkel 1964-2-22 359 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  JEPS77005  Iris douglasiana Robert M. Lloyd 1963-3-17 2134 Contra Costa 0.5 mi e intersection of Grizzly Peak Road and Skyline Drive (on Skyline (across from 7090 Skyline), Huckleberry trail) Comment
  JEPS78631  Isolepis cernua Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3306 Contra Costa Botany Cove Browns Island, Botany Cove Comment
  RSA666475  Isolepis cernua Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10713 Contra Costa Browns Island N of Pittsburg near confluence of Sacramento and San Joaquin rivers opposite Pittsburg Marina. Comment
  CAS-BOT-BC324755  Iva axillaris James McMurphy 1909-5-20 s.n. Contra Costa Antioch Comment
  JEPS34775  Jaumea carnosa W. L. Jepson 1922-7-9 9728 Contra Costa Richmond Comment
  CAS-BOT-BC101879  Juglans californica J. W. Congdon 1894-10-16 s.n. Contra Costa Ft. Mt. Diablo Comment
  CAS-BOT-BC102304  Juglans hindsii Lewis S. Rose 1936-4-24 36140 Contra Costa Marsh Creek, 5 mi. E. of Clayton 60 Comment
  CDA9511  Juglans hindsii D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .238 Contra Costa CA Delta; Along Clifton Court Near Clifton Court Forebay. Comment
  UCD110262  Juglans hindsii Rimo Bacigalupi 1951-4-3 3253 Contra Costa Along Trampas Creek, 1 1/4 mi. n.e. of St. Mary's College. 167 Comment
  UC691984  Juncus ambiguus Mary L. Bowerman 1930-6-10 292 Contra Costa Mount Diablo, Mineral Spring Mineral Spring; Mount Diablo, Mineral Spring Comment
  UCD146718  Juncus ambiguus G. F. Hrusa; D. Crowe 1998-5-8 14365 Contra Costa Sacramento-San Joaquin River Delta. Near San Joaquin River shore within Dow Chemical Property at Pittsburg. 10 Comment
  CHSC97914  Juncus balticus D. G. Kelch 2006-6-14 06 .334 Contra Costa Between Rte 4 and Carbon Rd. E Rodeo. 24 Comment
  UC691939  Juncus balticus Mary L. Bowerman 1933-9-15 2444 Contra Costa s-face Meridian Peak; Mount Diablo, , Hunt Spring 762 Comment
  JEPS66915  Juncus bufonius var. bufonius Burtt Davy 1895-4-7 948 a Contra Costa Antioch Comment
  UC2028304  Juncus bufonius var. bufonius Barbara Ertter, Susan D'Alcamo 1998-6-12 16201 Contra Costa Along Curry Canyon Road just east of Curry Point, south side of Mount Diablo. Comment
  JEPS111067  Juncus bufonius var. congestus Lee Echols 2003-4-15 s.n. Contra Costa S of Lark Drive and N of EPA Building, within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  JEPS112447  Juncus effusus var. pacificus A. G. Murdock 2004-5-28 280 Contra Costa Refugio Valley 120 Comment
  SEINET3880409  Juncus nevadensis Kaye H. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4980 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough. SE portion of Bethel Slough.; 0 610 Comment
  JEPS25120  Juncus occidentalis G. Thomas Robbins 1959-4-18 3986 Contra Costa about 0.5 mi e Pt. San Pablo (overlooking San Pablo Bay); San Pablo Bay 7 Comment
  UC2028537  Juncus occidentalis Barbara Ertter 1998-2-15 15912 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, open bank southeast of Indian Valley Pond. Comment
  SBBG115561  Juncus oxymeris B. Crampton 1950-6-10 590 Contra Costa 1 mi N of Richmond, along Santa Fe Railroad Comment
  SEINET6174583  Juncus phaeocephalus L. Koch 1940-6-5 1004 b Contra Costa Two milees south of San Rafael Ferry Dock Comment
  JEPS102917  Juncus phaeocephalus var. paniculatus Barbara Ertter 1998-5-3 16061 Contra Costa wet meadow below Stage Road SE of Turtle Rock Ponds; Mount Diablo 304 Comment
  RSA0033763  Juncus phaeocephalus var. paniculatus Barbara Ertter 1998-5-3 16061 Contra Costa Area of Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo, below road SE of ponds. 304 Comment
  UC2028371  Juncus phaeocephalus var. paniculatus Barbara Ertter 1998-6-20 16236 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Alkali Pond at Wiget Lane entrance, Comment
  UCD32427  Juncus phaeocephalus var. paniculatus Beecher Crampton 1950-6-10 590 Contra Costa 1 mile north of Richmond, along Santa Fe R.R. 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
  POM300638  Juncus xiphioides Mary L. Bowerman 1931-5-15 865 Contra Costa Lower Silver Spring. Comment
  UC306590  Keckiella corymbosa A. D. E. Elmer Jul 1903 4956 Contra Costa Mount Diablo Comment
  UC691611  Keckiella corymbosa Mary L. Bowerman 1930-7-20 412 Contra Costa summit Mount Diablo Comment
  POM257060  Koeleria macrantha Virginia Long 1933-6-14 223 a Contra Costa Mt Diablo; On top of grassy ridge between Curry-Cave trail canyon and W. fork Comment
  SEINET186056 Image available Koeleria macrantha V. E. Long 1933-6-14 223 a Contra Costa Mt. Diablo 457 Comment
  UC691244  Koeleria macrantha Mary L. Bowerman 1935-5-16 2992 Contra Costa Russelman Park Mount Diablo (just s of the n boundary of section 25 (e of gate)); , Russelman Park Comment
  POM300737  Koeleria macrantha Mary L. Bowerman 1935-5-8 2974 a Contra Costa Knoll on spur south of Pioneer Camp. (20 feet higher than the upper edge of the chaparral) 762 Comment
  CAS-BOT-BC273616  Koeleria pyramidata Virginia E. Long 1933-6-14 223 a Contra Costa Mt. Diablo. Between Curry-Cave trail canyon and W. fork 457 Comment
  JEPS99525  Lactuca saligna Mary L. Bowerman 1975-9-14 Contra Costa Mount Diablo. By hillside near Chase Pond. Comment
  UC691780  Lactuca serriola Mary L. Bowerman 1932-9-24 1591 Contra Costa ridge running w from Twin Peaks; Mount Diablo 335 Comment
  CAS-BOT-BC340537  Lactuca serriola Walter Knight; Irja Knight; J. T. Howell; E. McClintock 1978-9-5 3236 Contra Costa Browns Island Comment
  UC691444  Lactuca virosa J. T. Howell 1942-7-1 17040 Contra Costa Comment
  UC912318  Laennecia coulteri Herbert L. Mason 1929-9-21 5443 Contra Costa one mile e of junction of Bordon Highway and road to Antioch; Antioch, Borden Highway Comment
  JEPS111661  Lagophylla ramosissima A. G. Murdock 2004-5-28 270 Contra Costa Pinole Peak 205 Comment
  CAS-BOT-BC341475  Lagophylla ramosissima John Thomas Howell 1930-9-28 5494 Contra Costa Marsh Creek Road, 7 miles east of Clayton Comment
  JEPS103664  Lastarriaea coriacea David Gowen 2003-7-6 Contra Costa Lime Ridge Open Space, N end 182 Comment
  UC14012  Lastarriaea coriacea Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  CAS-BOT-BC337974  Lasthenia californica Alice Eastwood 1923-5-4 11688 Contra Costa Mt. Diablo Comment
  CDA8107  Lasthenia californica D. G. Kelch 1992-3-21 1827 -A Contra Costa 2.5 mi. SE of Byron; along RR tracks, N of junction of Holey Rd. and Byron Hwy. 0 Comment
  JEPS111658  Lasthenia californica A. G. Murdock 2005-3-25 229 Contra Costa Hercules - Carbon 50 Comment
  RSA721745  Lasthenia californica Barbara Ertter, Mary L. Bowerman 1995-5-7 14060 Contra Costa Three-Springs Trail on NE side of Mt. Diablo SE of Clayton. Comment
  JEPS25123  Lasthenia californica subsp. californica G. Thomas Robbins 1959-4-18 3989 Contra Costa hillslopes above and about 1/2 mi e Pt. San Pablo; Richmond 30 Comment
  UC62989  Lasthenia californica subsp. californica H. M. Hall 1901-4-5 1749 a Contra Costa Mt. Diablo Comment
  JEPS18328  Lasthenia conjugens E. L. Greene 1887-4-1 Contra Costa Antioch Comment
  POM50986  Lasthenia ferrisiae Alice Eastwood 1914-3-14 3761 Contra Costa Byron Springs. 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
  RSA114067  Lasthenia fremontii H. L. Mason 1952-4-14 14260 Contra Costa 3.5 miles S of Byron Comment
  RSA517746  Lasthenia fremontii Donald G. Nelson 1937-3-30 470 Contra Costa Railroad tracks paralleling the highway south of Byron on road to Tracy Comment
  RSA523884  Lasthenia fremontii Barbara Ertter, Jim Jokerst, D. Magney 1989-4-5 8136 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  CAS-BOT-BC352926  Lasthenia glaberrima Kellogg 1870-4-20 s.n. Contra Costa Antioch Comment
  UC1618392  Lasthenia glabrata subsp. glabrata Barbara Ertter, Chris Thayer 1993-5-7 11705 Contra Costa 1/2 mi n of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land e of Tilden Park 457 Comment
  UCD133763  Lasthenia glabrata subsp. glabrata P. B. Kennedy 1925-4-26 s.n. Contra Costa Mt. Diablo. Comment
  JEPS73690  Lasthenia gracilis L. R. Heckard 1968-3-5 1759 Contra Costa Byron 7 Comment
  UC566714  Lasthenia gracilis H. L. Mason 1929-3-31 5154 Contra Costa along San Joaquin River; , Antioch Comment
  UC71908  Lasthenia gracilis The Postmaster 1900-3-24 Contra Costa Oakley Region of Mount Diablo Comment
  UC697155  Lasthenia microglossa Mary L. Bowerman 1932-3-27 1141 Contra Costa Mitchell Rock Mount Diablo, Mitchell Rock Comment
  UC89980  Lasthenia microglossa unknown 1890-4-22 Contra Costa near Antioch Comment
  SEINET3387255 Image available Lasthenia minor Lewis S. Rose 1933-3-29 33039 Contra Costa Nortonville. Comment
  CAS-BOT-BC366306  Lasthenia minor J. T. Howell 1933-3-29 10895 Contra Costa Nortonville Comment
  CAS-BOT-BC205012  Lathyrus jepsonii var. jepsonii Alice Eastwood 1915-6-21 4729 Contra Costa San Leandro Comment
  SEINET12163679  Lathyrus vestitus subsp. bolanderi W. Knight, Knight, I. 1983-1 4773 Contra Costa Tilden Regional Park Comment
  POM19374  Lathyrus vestitus subsp. vestitus W. L. Jepson 1891-6-9 6801 Contra Costa Contra Costa Comment
  CAS-BOT-BC323911  Layia chrysanthemoides C. F. Baker 1903-4-27 2903 Contra Costa Byron Comment
  CAS-BOT-BC323926  Layia chrysanthemoides Alice Eastwood 1914-3-14 3820 Contra Costa Byron Springs Comment
  UC912574  Layia chrysanthemoides Herbert L. Mason 1929-3-31 5151 Contra Costa Sacramento River at Antioch; Sacramento River Comment
  CAS-BOT-BC323908  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
  JEPS13505  Layia gaillardioides Robert F. Hoover 1936-4-16 973 Contra Costa e slope of Bald Peak e of Tilden Regional Park; San Pablo Ridge Comment
  CAS-BOT-BC321078  Layia glandulosa Alice Eastwood; John Thomas Howell 1936-4-19 2150 Contra Costa Antioch sand hills Comment
  JEPS40029  Layia glandulosa H. L. Mason 1932-3-20 Contra Costa Antioch Comment
  CAS-BOT-BC321085  Layia glandulosa Brandegee no date on sheet s.n. Contra Costa Antioch Comment
  UC761879  Layia glandulosa R. F. Hoover 1937-5-14 2115 Contra Costa Comment
  RSA81648  Layia glandulosa subsp. glandulosa James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC327247  Layia hieracioides David D. Keck 1941-6-5 5307 Contra Costa Berkeley Hills, Fish Creek Rd., 0.25 mi W of E. portal of Broadway Tunnel 335 Comment
  CAS-BOT-BC327250  Layia hieracioides Mary L. Bowerman 1933-5-3 1969 Contra Costa Mt. Diablo, Due south of summit 2400'; commoner toward saddle (2400'). 731 Comment
  POM267968  Layia hieracioides D. D. Keck 1941-6-5 5307 Contra Costa Berkeley Hills, Fish Creek Road 1/4 mile W of E portal of Broadway Tunnel. 335 Comment
  CAS-BOT-BC327698  Layia pentachaeta Brandegee no date on sheet s.n. Contra Costa Antioch Comment
  CAS-BOT-BC370670  Layia platyglossa Mary L. Bowerman 1935-4-26 2916 Contra Costa Mount Diablo. Ridge west of Indian Ceremonial Spring. 1005 Comment
  CAS-BOT-BC377908  Layia platyglossa L. R. Abrams 1921-5-25 8011 Contra Costa near summit of Mt. Diablo Comment
  CAS-BOT-BC377911  Layia platyglossa Lewis S. Rose 1933-4-17 33093 Contra Costa Antioch Comment
  UC30670  Layia platyglossa Edw. L. Greene 1892-6-20 Contra Costa Mount Diablo Comment
  UC2028000  Layia platyglossa Barbara Ertter, Tony Morosco 1998-4-12 16019 Contra Costa Mount Olympia on north side of Mount Diablo, around rocks at summit. Comment
  SD38982  Layia platyglossa subsp. campestris Edith A. Purer 1933-4-25 3661 Contra Costa Near Newark. Comment
  UCD63599  Leersia oryzoides Malcolm A. Nobs 1948-9-23 681 Contra Costa Rock Slough, 7 mi. south of Kingston. Comment
  UC2028381  Lemna minor Barbara Ertter 1998-6-20 16244 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Bob Pond at Old Borges Ranch Comment
  UC2027954  Lemna minor Barbara Ertter with Joanne Kerbavaz 2000-8-20 17504 Contra Costa Frog Pond on southeast side of Mount Diablo. Comment
  UC692082  Lemna minuscula Mary L. Bowerman 1933-9-9 2430 Contra Costa Mount Diablo, (spring which feeds Frog Pond) Mount Diablo Comment
  CAS-BOT-BC534639  Lemna minuta Ira L. Wiggins 1930-4-18 4607 Contra Costa Jersey Island Comment
  UC2028592  Lemna minuta Barbara Ertter with Dan Norris 2001-4-15 17606 Contra Costa Diablo Foothills Regional Park, Alamo Trail from Livorna Staging Area. Comment
  CAS-BOT-BC88702  Lepidium acutidens Alice Eastwood 1914-3-14 3771 Contra Costa Byron Springs. Comment
  UCD169966  Lepidium chalepense R. M. Case 2001-5-10 PDR-P 088777 Contra Costa On Solano Ave., Concord. Comment
  JEPS116575  Lepidium coronopus David Gowen 2006-9-16 661 Contra Costa Wildcat Regional Park on fire road leading from Rifle Range Rd. to the canyon bottom. Comment
  CHSC67909  Lepidium dictyotum James D. Jokerst; Barbara Ertter, Dave Magney 1989-4-5 3080 Contra Costa West and adjacent to Clifton Court Forebay, E of Bryon Hwy. and Italian Slough. 3 Comment
  CHSC67908  Lepidium dictyotum var. dictyotum James D. Jokerst 1989-3-29 3073 Contra Costa Byron Hot Springs area NE of Livermore, adjacent to pipeline on terrace S of ephemeral creek. Comment
  UCD115342  Lepidium didymum Collector unknown Date unknown s.n. Contra Costa Jersey Island. Comment
  CAS-BOT-BC89715  Lepidium latifolium Walter Knight; Joanne Dean 1978-8-14 3170 Contra Costa Brown Island. Comment
  CAS-BOT-BC89716  Lepidium latifolium Walter Knight 1978-8-12 3231 Contra Costa Ca. 0.8 mile east of Point Pinole. Comment
  JEPS53653  Lepidium latipes W. L. Jepson 1899-4-19 13370 Contra Costa Moraga Valley Comment
  SEINET11983327  Lepidium latipes F. Chisaki, Bacigalupi, R. C.; Robbins, G. T. 1959-1 1320 Contra Costa on Deer Valley Rd, 0.2 mi S of junction with Briones Valley Rd (ca 8 mi S of Antioch) Comment
  UC2070568  Lepidium latipes Barbara Ertter with David Gowen, J. Ginochio, M. Park, S. Matson, A. Moore, S. D'Alcamo, J. Greenhouse, K. Kersh and J. Gawthrup 2005-5-8 18572 Contra Costa Long Ridge on west flank of Mount Diablo, near springs and pond on Ginochio property near park boundary. Comment
  UC1563902  Lepidium nitidum Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8123 Contra Costa ca 15 air mi sw Stockton (w and adjacent to Clifton Court Forebay, se Contra Costa Co.); se Contra Costa Co. Comment
  UC517997  Lepidium nitidum Lewis S. Rose 1933-3-29 33045 Contra Costa Pittsburg Comment
  UC691079  Lepidium nitidum Mary L. Bowerman 1931-2-8 506 Contra Costa West road (= North Rd) Mount Diablo 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
  RSA537663  Lepidium nitidum var. oreganum Barbara Ertter, Jim Jokerst, D. Magney 1989-4-5 8127 Contra Costa SE Contra Costa: alkali sink W and adjacent to Clifton Court Forebay, ca 15 air miles SW of Stockton 0 Comment
  UC10597  Lepidium strictum Harley P. Chandler 1901-4-5 942 Contra Costa Pine Canyon Mt. Diablo Comment
  UC1789934  Lepidium strictum Katharine Brandegee May 1907 Contra Costa Antioch Comment
  UC1795745  Lepidium strictum Barbara Ertter, Mary Bowerman et al. 1995-5-7 14051 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, middle of dirt road below houses, edge of blue oak. Comment
  UC1818924  Lepidium strictum Barbara Ertter, Mary Bowerman 1995-6-11 14252 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, Kovar Trail roadbed near Indian Creek, annual grassland 76 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
  CAS-BOT-BC274013  Leptochloa fusca subsp. uninervia Beecher Crampton 1959-10-19 5467 Contra Costa Vasco Road just north of its junction with Mt. Diablo Road, 4 miles south of Brentwood Comment
  CAS-BOT-BC226592  Leptosiphon ambiguus Mary L. Bowerman 1934-3-18 2481 Contra Costa Mount Diablo. West of Russelman Park on edge of Donner Canyon Comment
  UC2028122  Leptosiphon androsaceus Barbara Ertter with Richard K. Brummitt 1998-5-6 16086 Contra Costa Lower Donner Canyon Road on north base of Mount Diablo, ca 1/2 miles south of Donner cabin site. Comment
  POM300970  Leptosiphon ciliatus Mary L. Bowerman 1935-5-22 3042 Contra Costa Eagle point ridge, canyon at north end which heads into saddle west of Twin Peaks. 305 Comment
  RSA0033850  Leucanthemum vulgare Barbara Ertter 1999-7-17 16761 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, Rifle Range Road. Comment
  UC2029023  Leucanthemum vulgare Barbara Ertter 1999-7-17 16761 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, Rifle Range Road. Comment
  UC1051216  Leucospermum nutans N. Floy Bracelin 1945-5-6 2968 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CDA32469  Leymus condensatus A. A. Beetle 1941-6-24 1751 Contra Costa Point Richmond on San Francisco Bay. 0 Comment
  JEPS99987  Leymus triticoides S. O'Neil 2003-7-27 SEO 44 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD87579  Leymus triticoides R. Tofsrud 1947-6-12 176 Contra Costa W of Byron about 4 miles in the 'Arroyo de la Canada. Comment
  UCD87775  Leymus triticoides M. Wiesendanger 1926-6-1 1527 Contra Costa Richmond. Comment
  JEPS100066  Ligustrum ovalifolium G. Smick 2003-5-30 GAS 196 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC211110  Lilaeopsis masonii W. Knight; I. Knight 1977-5-22 s.n. Contra Costa Antioch Dunes Comment
  CDA7913  Lilaeopsis masonii D. G. Kelch, A. G. Murdock 2005-5-2 5 .297 Contra Costa Carquinez Strait; Glen Cove Shore. Comment
  UC691999  Lilium pardalinum Mary L. Bowerman 1935-6-21 3144 Contra Costa e fork Arroyo del Cerro; Mount Diablo 289 Comment
  CDA33335  Limnobium laevigatum Paul Ryan/Alan Hyde 2010-10-4 PDR# 1596381 Contra Costa Near Rio Vista; tidal waterway, 200 yards from deep water channel 0 Comment
  SD180583  Limonium californicum Beecher Crampton 1950-8-5 632 Contra Costa San Pablo Canal, northwest of Richmond. Comment
  UCD35164  Limonium californicum Beecher Crampton 1950-8-5 632 Contra Costa San Pablo Canal, NW of Richmond. Comment
  UC23377  Linanthus androsaceus Harley P. Chandler 1901-4-5 954 Contra Costa Mt. Diablo Comment
  UC691636  Linanthus androsaceus Mary L. Bowerman 1933-4-15 1861 Contra Costa 2nd ridge se Arroyo del Cerro; Mount Diablo Comment
  UC691637  Linanthus androsaceus Mary L. Bowerman 1931-4-18 716 Contra Costa Sycamore Canyon Mount Diablo 335 Comment
  JEPS58158  Linanthus androsaceus W. L. Jepson 1891-1 20906 Contra Costa Fish Ranch Berkeley Hills Comment
  UC691638  Linanthus pygmaeus subsp. continentalis Mary L. Bowerman 1933-5-25 2178 Contra Costa w end of s-face Oyster Ridge 396 Comment
  UC1819058  Linum bienne Barbara Ertter, Rich Rabeler 1994-6-6 12818 Contra Costa Point Isabel in south Richmond; black cinders on old railroad bed north of Costco; landfill. Comment
  UC1084400  Lithophragma affine G. Thomas Robbins 1937-4-17 128 Contra Costa near Point Richmond Comment
  UC570875  Lithophragma affine H. L. Mason 1932-3-20 6843 Contra Costa Antioch Sand Hills Comment
Read comments
Oct 9 2006
  UCSB10858  Lithophragma affine Hayes, Judy 1961-3-29 Contra Costa 1 mile W of Danville on Pixie Lane Comment
  UC692447  Lithophragma heterophyllum Mary L. Bowerman 1931-3-21 585 Contra Costa Sycamore Canyon 335 Comment
  UC2028178  Lithophragma heterophyllum Barbara Ertter 1998-5-3 16041 a Contra Costa Dusty Road at north end of Wall Point Ridge, southwest flank of Mount Diablo. Comment
  JEPS33573  Logfia gallica W. L. Jepson 1943-5-27 20839 Contra Costa Black Hills Mt. Dialo, Black Hills Comment
  UC1948941  Logfia gallica William J. Ferlatte, L. Maynard Moe 1970-4-27 1255 Contra Costa San Francisco Bay: Red Rock Island Comment
  CHSC21628  Lolium multiflorum Willis Ball 1975-4-19 524 Contra Costa Contra Loma Regional Park. In area #1. Immediately to the s side of the main parking lot at the s end of the lake. 33 Comment
  SEINET2080859  Lolium multiflorum D. Walter 1985-4-29 10183 Contra Costa Dougherty Road 4 miles N of Old Ranch Road (N of Dublin, E of San Ramon). 121 Comment
  UC606746  Lolium perenne Edward Lee 1936-4-19 1973 Contra Costa Red Rock , se shore Red Rock (San Francisco Bay) Comment
  UC196245  Lomatium caruifolium var. caruifolium Edw. L. Greene 1889-3-23 Contra Costa 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
  CDA38380  Lomatium dasycarpum P. Arnaud 1959-4-19 2239 Contra Costa Mt. Diablo State Park, Juniper Campground. 0 Comment
  UCD127623  Lomatium dasycarpum P. B. Kennedy 1925-4-26 s.n. Contra Costa Banks above road to Sycamore Canon, Mt. Diablo. Comment
  UC21203  Lomatium dasycarpum subsp. dasycarpum H. M. Hall 1906-3-16 1658 Contra Costa Point Richmond Comment
  UC2027916  Lomatium dasycarpum subsp. dasycarpum Barbara Ertter with Dan Norris 2001-4-8 17580 Contra Costa Lime Ridge Open Space east of Walnut Creek, high part of main ridge. Comment
  UC691426  Lomatium macrocarpum Mary L. Bowerman 1935-4-17 2837 Contra Costa w. rd. 2 mi. from entrance Mt. Diablo (ridge w. of chaparral) 289 Comment
  UC691428  Lomatium macrocarpum Mary L. Bowerman 1933-4-26 1906 Contra Costa ridge e.-s.e of the peak North Peak; Mt. Diablo 579 Comment
  SEINET7879187 Image available Lomatium utriculatum C. M. Belshaw 1936-1 2105 Contra Costa Tassajera Rd, 1 miles S. of summit Sec. 16 T. 1 S. R. 1E. Comment
  CAS-BOT-BC240417  Lonicera hispidula John Thomas Howell 1925-10-11 1489 Contra Costa Moraga Ridge, Oakland Hills Comment
  CDA42192  Lonicera hispidula var. vacillans D. G. Kelch 2004-5-2 4 .167 Contra Costa Carquinez Strait Region; Edwards Canyon, Crockett. Comment
  UC691752  Lonicera hispidula var. vacillans Mary L. Bowerman 1938-6-14 3681 Contra Costa Canyon Nook Mount Diablo 670 Comment
  JEPS22791  Lonicera involucrata var. ledebourii Ira L. Wiggins 1930-4-18 4594 Contra Costa levee at e end Jersey Island 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
  CAS-BOT-BC234843  Lonicera subspicata var. denudata Mary L. Bowerman 1932-10-16 1634 Contra Costa Mount Diablo. Donner Canyon basin: on west-facing slope of ridge east of Median Ridge 487 Comment
  UC1050946  Lonicera thibetica N. Floy Bracelin 1942-8-9 2245 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1051339  Lophospermum erubescens N. Floy Bracelin 1941-6-15 1389 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  CDA27211  Lotus humistratus G. E. Sorensen 1963-5-24 Contra Costa North Gate Road, Mt. Diablo State Park. 0 Comment
  POM18639  Lotus humistratus C. F. Baker 1903-4-28 7481 Contra Costa Marsh Creek, Mt. Diablo. Comment
  UC15642  Lotus micranthus W. H. Brewer 1862-5-26 1173 Contra Costa near Monte Diablo Comment
Read comments
May 4 2008
  CDA28972  Lotus scoparius D. G. Kelch, Suzanne Latham, Matt Beyers 2009-6-3 9 .331 Contra Costa East Bay.; El Sobrante Ridge at end of Silver Belt Dr. on Miocene chert outcrop. Comment
  JEPS25107  Lotus scoparius G. Thomas Robbins 1959-4-12 3983 Contra Costa about 0.5 mi sw junction of Hoffmann Blvd. and S. 25th St. 6 Comment
  JEPS100073  Lotus scoparius var. scoparius G. Smick 2003-5-30 GAS 201 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS100070  Lotus wrangelianus G. Smick 2003-3-13 GAS 87 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC555420  Lotus wrangelianus H. L. Mason 1929-5-7 5263 Contra Costa Moraga Ridge Comment
  UC692263  Lotus wrangelianus Mary L. Bowerman 1933-5-9 2045 Contra Costa Stage Road Mount Diablo 853 Comment
  UC692325  Lotus wrangelianus Mary L. Bowerman 1933-5-25 2189 Contra Costa w end of s face Osyter Ridge; Mount Diablo 396 Comment
  UC178931  Lupinus Katharine Brandegee Contra Costa Walnut Creek Comment
  UC201036  Lupinus Katharine Brandegee 1918-6-5 Contra Costa Richmond Annex Comment
  UC727201  Lupinus A. A. Heller 1942-4-20 16428 Contra Costa Antioch just e of the Boat School Antioch High School (not far from the San Joaquin River); nor far from the San Joaquin River Comment
  UC149913  Lupinus affinis Katharine Brandegee 1911-7-6 Contra Costa along the RR near Point Isabel; along the RR near Point Isabel Comment
  JEPS77021  Lupinus albifrons Robert M. Lloyd 1963-3-17 2146 Contra Costa 1 mi s intersection of Grizzly Peak and Skyline on Skyline; on Skyline Comment
  UC764598  Lupinus albifrons Robert F. Hoover 1935-3-10 300 Contra Costa Antioch Comment
  UC1129295  Lupinus albifrons var. albifrons C. M. Belshaw 1936-5-8 2059 Contra Costa 2.25 mi e Clayton; Mt. Diablo quad 381 Comment
  CAS-BOT-BC201372  Lupinus albifrons var. albifrons Paul F. Covel 1938-6-26 s.n. Contra Costa Las Trampas Canyon - behind St. Mary's Comment
  UC1607626  Lupinus albifrons var. collinus Barbara Ertter 1991-5-5 9772 Contra Costa halfway up E ridge Rose Hill (above cemetary, Black Diamond Mines Regional Preserve s of Pittsburg); Black Diamond Mines Regional Preserve, Rose Hill 365 Comment
  JEPS112334  Lupinus arboreus Dean G. Kelch and Andrew G. Murdock 2004-5-21 04 .217 Contra Costa Crocket - Tormey Headlands; County: Contra Costa; Along San Pablo Ave. ~ 1 k. west of Carq. Bridge. Comment
  JEPS25126  Lupinus arboreus G. Thomas Robbins 1959-4-18 3995 Contra Costa near and n Pt. Richmond (above Western Drive, western slopes of the Potrero Hills, Richmond); Richmond, near and n of Pt. Richmond 7 Comment
  UC127056  Lupinus arboreus Ivar Tidestrom 1893-4-15 Contra Costa Sheep Island Comment
  JEPS112354  Lupinus bicolor Dean G. Kelch and Andrew G. Murdock 2004-3-12 04 .029 Contra Costa Pinole Valley, County: Contra Costa; Hillside and canyon above Wright Road. Off of Pinole Valley Road. Contra Coasta County, CA. Comment
  JEPS112360  Lupinus bicolor Dean G. Kelch and Andrew G. Murdock 2004-5-28 288 Contra Costa Pinole Peak; County: Contra Costa. Comment
  UC400153  Lupinus bicolor Ynes Mexia 1929-4-21 2378 a Contra Costa Moraga Valley Comment
  JEPS111069  Lupinus bicolor Lee Echols 2003-4-1 s.n. Contra Costa N of Lark Drive in SE portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  POM350151  Lupinus bicolor subsp. microphyllus H. de Forest 1930-4-6 s.n. Contra Costa [No location information provided.] Comment
  UC1073380  Lupinus bicolor subsp. umbellatus George B. Rossbach 1955-3-13 323 Contra Costa just e Antioch (along San Joaquin River); , just e of Antioch Comment
  UC1819006  Lupinus formosus var. formosus Barbara Ertter, Brad Olson, Diane Lake, Seth Adams, et al. 1994-9-11 13095 Contra Costa Chaparral Springs addition to Mt. Diablo State Park, north side of Marsh Creek Road at high point southeast of Clayton,, open slopes between ponds at south foot of ridge, open woodland/ grassland, heavily grazed. Comment
  JEPS112364  Lupinus latifolius var. latifolius Dean G. Kelch and Andrew G. Murdock 2004-4-30 256 Contra Costa Vaca Canyon; County: Contra Costa; On steep south slope along road. Comment
  JEPS112376  Lupinus microcarpus var. densiflorus Dean G. Kelch and Andrew G. Murdock 2003-6-2 88 Contra Costa Crockett - Eckley; County: Contra Costa; East of pier at base of cliff. Comment
  UC1543065  Lupinus microcarpus var. densiflorus Donald G. Nelson 1937-4-24 515 Contra Costa Marsh Creek Road n Byron; Marsh Creek Road Comment
  UC1562851  Lupinus microcarpus var. densiflorus Barbara Ertter with Elizabeth Neese 1988-4-24 7450 Contra Costa n of e-w part of Black Diamond Trail sw Antioch (Black Diamond Mines Regional Preserve); Black Diamond Mines Regional Preserve Comment
  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
  UC201011  Lupinus microcarpus var. microcarpus Katharine Brandegee 1918-6 Contra Costa Richmond Annex Comment
  UC201022  Lupinus microcarpus var. microcarpus Katharine Brandegee 1918-6-19 Contra Costa Richmond Annex; El Dorado St. Comment
  UC201037  Lupinus microcarpus var. microcarpus Katharine Brandegee 1918-6-19 Contra Costa Richmond Annex , base of a rocky hill (El Dorado St.) Comment
  UC692260  Lupinus microcarpus var. microcarpus Mary L. Bowerman 1933-4-15 1860 Contra Costa second ridge se Arroyo del Cerro Arroyo del Cerro, Mount Diablo; Mount Diablo 396 Comment
  SBBG45227  Lupinus microcarpus var. microcarpus Leota Davidson 1966-5-2 335 Contra Costa Hwy 24 near Claremont Hotel, Berkeley hills Comment
  RSA0033776  Lupinus nanus Barbara Ertter, Richard K. Brummitt 1998-5-6 16093 Contra Costa Lower Donner Canyon on north base of Mount Diablo, Hetherington Trail upstream from Donner Cabin. Comment
  UC2028033  Lupinus nanus Barbara Ertter 1998-4-4 15944 a Contra Costa Shell Ridge Open Space northwest of Mount Diablo, SE of Indian Valley School. Comment
  SEINET10870817  Lupinus nanus subsp. menkerae Frenkel 1964-3-27 FRENKEL 408 Contra Costa Leaves fine, red-streaked. Large flower observed growing amidst common small Flowers. On giant road, .4 mi n of atsf r.r. Crossing, richmond. 15 Comment
  UC2028168  Lupinus pachylobus Barbara Ertter 1998-5-3 16075 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, near Wall Point. Comment
  SEINET10486145  Lupinus polycarpus Frenkel 1964-3-27 FRENKEL 409 Contra Costa On giant road, .4 mi n of atsf rr crossing, richmond. 15 Comment
  POM181435  Lupinus succulentus I. L. Wiggins 1930-4-7 4567 Contra Costa Near Mountain Horse, Altamont Pass Comment
  UCD109637  Lupinus succulentus Helen K. Sharsmith 1962-4-17 4937 Contra Costa Vicinity of Grizzly Peak, Berkeley Hills. 426 Comment
  UC2062431  Luzula macrantha Barbara Ertter with David Gowen 2013-4-9 21309 Contra Costa Mount Diablo State Park southeast of Walnut Creek, Sulfur Spring/Devils Slide Trail southeast of Curry Point. Comment
  CDA5759  Lycium chinense T. C. Fuller 1964-11-6 12810 Contra Costa Knightsen. 0 Comment
  UC692634  Lythrum californicum Mary L. Bowerman 1930-6-28 392 Contra Costa Mount Diablo, Lower Silver Spring Lower Silver Spring; Mount Diablo, Lower Silver Spring Comment
  JEPS116748  Lythrum californicum David Gowen 2006-8-9 660 Contra Costa Mt. Diablo State Park at Lower Moses Rock Spring. Comment
  UC692629  Lythrum hyssopifolia Mary L. Bowerman 1932-8-27 1522 Contra Costa s of Turtle Rock (w of the willows, Mount Diablo); Mount Diablo 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
  UC1789169  Lythrum tribracteatum Barbara Ertter 2005-8-18 18642 Contra Costa San Pablo Reservoir in East Bay Hills, east of San Pablo Dam Road between Richmond and Orinda; abundant on mudflats left by receding reservoir, mostly dried. Comment
Read comments
May 27 2008
  UC33221  Madia elegans Jos. Burtt Davy 1895-1 Contra Costa Moraga Pass Comment
  UC2029031  Madia elegans Barbara Ertter 2002-8-24 18041 Contra Costa lower Perkins Canyon on NE base of Mount Diablo. Comment
  CAS-BOT-BC344324  Madia exigua Joseph Andorfer Ewan 1936-5-24 9693 Contra Costa West slope Bald Peak, San Pablo Ridge Comment
  CAS-BOT-BC342981  Madia gracilis Barrett Anderson 1987-4-30 3499 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  CAS-BOT-BC342984  Madia gracilis Mary L. Bowerman 1933-6-3 2241 Contra Costa Mount Diablo. Ransom Point Ridge Comment
  JEPS111708  Madia gracilis D. G. Kelch 2004-5-7 04 .184 Contra Costa Ca ada del Cierbo Ca ada del Cierbo 40 Comment
  JEPS84508  Madia gracilis Jack Stratford 1981-5-18 Contra Costa Huckleberry Trail Huckleberry Botanic Regional Preserve Comment
  CAS-BOT-BC324490  Madia radiata Brandegee 1889-4-1 s.n. Contra Costa Antioch Comment
  SEINET3148105  Madia radiata K. Brandegee 1908-4-9 50 Contra Costa Near Antioch Comment
  CAS-BOT-BC343579  Madia sativa David D. Keck 1941-6-5 5310 Contra Costa Berkeley Hills, Fish Creek Road, 1/4 mi. W. of East portal of Broadway Tunnel 335 Comment
  POM267969  Madia sativa D. D. Keck 1941-6-5 5310 Contra Costa Berkeley Hills, Fish Creek Road 1/4 mile W of E portal of Broadway Tunnel. 335 Comment
  RSA69276  Maianthemum racemosum subsp. amplexicaule Frank W. Peirson, Mabel B. Peirson 1925-4-10 6636 Contra Costa Boulevard near San Pablo Reservoir Comment
  CHSC117387  Malacothamnus fasciculatus Barbara Ertter; Tony Morosco 1998-9-18 16417 Contra Costa West edge Lime Ridgde Open Space northwest of Mount Diablo, chaparral at base of hills. Comment
  JEPS26391  Malacothamnus fremontii Kittie L. Fenley 1931-5-3 Contra Costa Nortonville Comment
  SDSU7507  Malacothamnus fremontii D. F. Howe 1968-5-20 4515 Contra Costa Comment
  RSA0027418  Malacothamnus fremontii Barbara Ertter, Joanne Kerbavaz, Mary Bowerman 2000-8-20 17516 Contra Costa South side of Mount Diablo, Pioneer Horse Camp. 884 Comment
  POM301021  Malacothamnus hallii Mary L. Bowerman 1933-6-3 2223 Contra Costa 2 miles by road from North Gate Comment
  UC1280806  Malacothamnus hallii H. E. McMinn and E. Maino 1931-4-11 123 Contra Costa Mount Diablo Comment
  CAS-BOT-BC345270  Malacothrix californica Kellogg No date on label s.n. Contra Costa Antioch Comment
  UC1613944  Malacothrix floccifera Charles M. Belshaw 1935-6-24 1024 Contra Costa Sobrante Hills Comment
  UC92223  Malacothrix floccifera T. S. Brandegee Contra Costa Antioch Comment
  UC2027747  Malus pumila Barbara Ertter 1996-11-24 15427 Contra Costa West side of Mount Diablo, Stage Road below Pine Pond in Pine Canyon. Comment
  JEPS111546  Malva nicaeensis D. G. Kelch 2005-3-13 05 .47 Contra Costa Crockett - weedy area under Zampa Bridge 4 Comment
  UC2013000  Malva nicaeensis Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14922 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  UC2012999  Malva parviflora Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14923 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  UC2032804 Image available Malva pseudolavatera Doran, Andrew Scott 2012-3-20 674 Contra Costa Brooks island loading dock, North side of island. 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
  UC692642  Marah fabacea Mary L. Bowerman 1931-4-4 634 Contra Costa 2 mi by road North Gate; Mount Diablo 228 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
  CHSC28455  Marah oregana Robert A. Schlising 1964-6-6 2718 Contra Costa Berkeley-Oakland Hills. Comment
  CHSC28456  Marah oregana Robert A. Schlising 1964-4-2 2667 Contra Costa Berkeley-Oakland Hills. Comment
  CHSC46934  Marah oregana Robert A. Schlising; Anna Eagle 1962-5-29 2282 Contra Costa Roadside. Comment
  JEPS63279  Marrubium vulgare L. Tinsley Sept. 1925 38 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC348047  Matricaria discoidea R. E. Frenkel 1964-4-8 420 Contra Costa By the south side of Marsh Creek Road near Marsh Creek 33 Comment
  CAS-BOT-BC348050  Matricaria discoidea Katharine Brandegee No date on label s.n. Contra Costa Byron Spring Comment
  CAS-BOT-BC348257  Matricaria occidentalis R. E. Frenkel 1964-4-8 419 Contra Costa Bixler Marsh Comment
  CHSC21646  Medicago polymorpha Willis Ball 1975-3-2 476 Contra Costa Contra Loma Regional Park. In area #4. On e side of lake ca. 100 yds s of dam. 30 Comment
  JEPS73599  Medicago polymorpha L. R. Heckard 1971-4-22 2495 Contra Costa e of Pinole (near Highway 80 crossing) 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
  CAS-BOT-BC271218  Melica californica E. E. Stanford 1930-5-24 1516 Contra Costa Marsh Creek Canyon Comment
  UC691168  Melica californica Mary L. Bowerman 1933-4-26 1934 Contra Costa Perkins Canyon Mount Diablo (branch between the main e ridge of North Peak and the ridge to its south) 487 Comment
  UCD87145  Melica californica P. B. Kennedy 1916-5-1 s.n. Contra Costa Pinehurst. Comment
  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
  SEINET10926310  Melica imperfecta var. flexuosa Virginia E. Long 1933-6-14 Long 221 a Contra Costa Mt. Diablo. On slope S.E.-E. along first west fork from Curry Creek trail. 335 Comment
  SEINET1910265  Melica torreyana Barbara Ertter, John Little 1989-1 8111 Contra Costa Hillside Park in El Cerrito, +/- undisturbed vegetation on steep W facing slope Comment
  UC188902  Melica torreyana Harley P. Chandler 1901-4-5 966 Contra Costa between Pine Canyon and Mt. Diablo Summit; Mt. Diablo Region Comment
  UC2028402  Melica torreyana Barbara Ertter with Christopher Baysdorfer 1998-5-10 16122 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, quarry area on west side Comment
  UC691166  Melica torreyana Mary L. Bowerman 1933-6-3 2235 Contra Costa summit Meridian Pk (Ranson Pt. trail); Mt. Diablo Comment
  UC691167  Melica torreyana Mary L. Bowerman 1935-5-8 2972 Contra Costa Muir Area 1036 Comment
  JEPS128777  Melilotus albus Kevin Hintsa 1999-8-17 Contra Costa Mount Diablo State Park, Pine Canyon in flats adjacent to willow forest. Comment
  POM181458  Melilotus indicus I. L. Wiggins 1930-4-18 4599 Contra Costa Jersey Island Comment
  CDA1105  Melissa officinalis D. G. Kelch, A. G. Murdock 2004-7-9 4 .293 Contra Costa Carquinez Strait; Crockett; Elkhorn Creek. Comment
  JEPS112478  Melissa officinalis D. G. Kelch 2004-7-9 04 .293 Contra Costa Crockett - Elkhorn Creek 2 Comment
  RSA0027699  Mentha aquatica Barbara Ertter 1996-9-19 15292 Contra Costa Antioch Marina. Edge of marsh near parking lot. Comment
  UC1949288  Mentzelia affinis Barbara Ertter 1991-5-5 9773 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, S side of Rose Hill above Nortonville Pass Comment
  POM89173  Mentzelia affinis Katherine Brandegee s.n. Contra Costa Byron Hot Springs. Comment
  JEPS99537  Mentzelia micrantha Mary L. Bowerman 1978-5-26 Contra Costa Mount Diablo, N of lower summit parking lot. Comment
  CDA31454  Micropus californicus D. G. Kelch 2006-5-2 6 .21 Contra Costa Carquinez Strait; Fernandez Ranch; W. Christie Rd. Comment
  JEPS111701  Micropus californicus var. californicus D. G. Kelch 2004-4-25 04 .125 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Hill Southwest of large cottonwood. West of Martinez at gated end of Scenic Dr 50 Comment
  JEPS40605  Micropus californicus var. californicus R. F. Hoover 1936-4-16 972 Contra Costa e slope Bald Peak Comment
  UC1795729  Micropus californicus var. californicus Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14223 Contra Costa Mt. Diablo southeast of Walnut Creek, north-facing slope north of Curry Point, grassy semishade at edge of oak woodland. 518 Comment
  CDA29517  Microseris douglasii D. G. Kelch, Troy MacGregor 2009-5-1 9 .285 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  UC1795751  Microseris douglasii Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14585 Contra Costa Crest of Marsh Creek Road on north side of Mt. Diablo southeast of Clayton, south-facing roadcut opposite entrance to Three Springs Trail; annual grasses and Lotus. 274 Comment
  CAS-BOT-BC348884  Microseris douglasii subsp. douglasii A. A. Heller 1908-4-17 8901 Contra Costa Hills three miles south of Antioch 18 Comment
  UC468893  Microseris douglasii subsp. douglasii M. K. Curran May, 1886 Contra Costa Antioch Comment
  UC92107  Microseris douglasii subsp. douglasii M. K. Curran 1886-1 Contra Costa Antioch Comment
  CAS-BOT-BC348896  Microseris douglasii subsp. douglasii Mrs. E. C. Sutliffe 1922-5-1 s.n. Contra Costa Richmond Comment
  UC1795746  Microseris douglasii subsp. douglasii Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14241 Contra Costa South side Mount Diablo, edge of open meadow in flats near head of Curry Creek along road to Sheepherders Springs from Sloan Road, clay soil. 426 Comment
  CAS-BOT-BC349094  Microseris douglasii subsp. tenella Ira L. Wiggins 1930-4-17 4560 A Contra Costa 1 mi. E. of Mountain House, on road to Byron Comment
  UC2027808  Microseris douglasii subsp. tenella Barbara Ertter with Holly Forbes 1997-4-20 15549 Contra Costa North base of Mount Diablo, roadside on trail to Back Creek from Mitchell Canyon trailhead. Comment
  UC691432  Microseris elegans Mary L. Bowerman 1933-3-25 1763 Contra Costa (Diablo Stock Farm) (Stone Valley) Canyon Mount Diablo Comment
  CAS-BOT-BC349170  Microseris elegans Brandegee No date on label s.n. Contra Costa Byron Hot Springs Comment
  CAS-BOT-BC7493  Microseris parvula M. K. Curran s.n. Contra Costa Antioch Comment
  JEPS116945  Microseris sylvatica David Gowen 2008-4-16 861 Contra Costa West end of Horse Valley. Comment
  UC1055920  Mimetanthe pilosa N. Floy Bracelin 1944-9-9 2799 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  UC103640  Mimulus aurantiacus var. aurantiacus T. S. Brandegee May 1889 Contra Costa Antioch Comment
  UC691649  Mimulus douglasii Mary L. Bowerman 1935-4-26 2906 Contra Costa w Indian Ceremonial Spring; Mount Diablo 1005 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
  UC886241  Mimulus microphyllus Lewis S. Rose 1941-3-27 41064 Contra Costa 2 mi w Byron 60 Comment
  UC691650  Mimulus rattanii Mary L. Bowerman 1933-5-31 2222 Contra Costa Juniper Camp Mount Diablo 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
  RSA0033764  Mollugo verticillata Barbara Ertter 2005-8-18 18635 Contra Costa 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 (reservoir way down this year while being drained for seismic work on dam). Comment
  CAS-BOT-BC221679  Monardella douglasii John Thomas Howell 1942-7-19 17049 Contra Costa NE. of Deer Flat, Mt. Diablo Comment
  UC691408  Monardella douglasii Mary L. Bowerman 1935-6-1 3116 Contra Costa Diablo Trail Mount Diablo, Meridian Peak 1082 Comment
  UC76184  Monardella douglasii Milo S. Baker 1904-6-22 Contra Costa near Hurley's; Mt. Diablo Comment
  CAS-BOT-BC220511  Monardella villosa A. D. E. Elmer 1903-7-1 4658 Contra Costa Port Costa Comment
  CAS-BOT-BC220514  Monardella villosa L. R. Abrams 1916-6-30 5707 Contra Costa Mt Diablo near lake Comment
  UC204205  Monardella villosa subsp. villosa A. D. E. Elmer Jul 1903 4658 Contra Costa Port Costa Comment
Read comments
Apr 5 2007
  UC691415  Monardella villosa subsp. villosa Mary L. Bowerman 1930-6-18 339 Contra Costa Dan Cook canyon Mount Diablo Comment
  UC2028367  Monardella villosa subsp. villosa Barbara Ertter 1998-6-20 16252 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, N-facing slope above Coyote Creek Comment
  JEPS99497  Monolopia gracilens Mary Bowerman 1979-5-2 Contra Costa Mount Diablo, Old Mines Trail, Back Canyon. Comment
  UC691682  Monolopia gracilens Mary L. Bowerman 1931-4-25 767 Contra Costa roadside a little below summit Meridian Peak; Mount Diablo Comment
  CAS-BOT-BC349610  Monolopia major Ethel Crum 1936-4-6 1741 Contra Costa Two miles west of Byron 45 Comment
  JEPS25355  Monolopia major Rimo Bacigalupi with Paul C. Hutchison and John Weiler 1959-3-19 6965 Contra Costa along Camino Diablo 1.9 mi w Byron (at road summit) 54 Comment
  UC697148  Monolopia major Mary L. Bowerman 1933-5-25 2196 Contra Costa e of saddle Osyter Ridge; Mount Diablo 396 Comment
  CAS-BOT-BC349607  Monolopia major Ira L. Wiggins 1930-4-17 4563 Contra Costa 1 mi. east of Mountain House on road to Byron Comment
  CAS-BOT-BC349615  Monolopia major Dr. A. Kellogg; W. G. W. Harford 1969-4-8 508 Contra Costa Antioch Comment
  JEPS73689  Montia fontana L. R. Heckard with Wm. Hirano and Ted Niehaus 1968-3-5 1758 Contra Costa about 3 mi se of Byron (at junction of Holey Road, along Byron-Bethany Road) 7 Comment
  RSA666388  Montia fontana Barbara Ertter 1993-4-17 11511 Contra Costa Morgan Territory 10 air miles N of Livermore, in lee of Mt. Diablo. Shallow side at edge of sandstone outcrop S of Hummingbird trail. 610 Comment
  UCD119532  Myosotis latifolia Terri Williamson 1990-5-22 70 Contra Costa 212 Poshard St. Pleasant Hill. 12 Comment
  UC1731499  Myosurus minimus Dean William Taylor 1971-3-28 961 Contra Costa along road J4 3 mi s of Byron (at Holley Road); road J4 at Holley Road 9 Comment
  UC1738088  Myosurus minimus D. E. Stone 1957-3-15 14268 B-6 Contra Costa 3 mi S of Byron ( on road to Herdlyn) Comment
  CDA24286  Myosurus minimus Jim Jokerst 1989-3-28 3058 Contra Costa Northwest of junction of Byron Hot Springs Road and Armstrong Road. Northeast of Livermore. 0 Comment
  UC1738112  Myosurus minimus subsp. apus D. E. Stone 1955-8-29 14 -8 Contra Costa 3 mi S of Byron (on the road to Herdlyn) Comment
  JEPS17886  Myosurus sessilis Rimo Bacigalupi with G. T. Robbins 1956-3-26 5532 Contra Costa about 2 1/2 mi s Byron (just s of S.P.R.R. crossing on rd. to Bethany, near head of Italian Slough) 6 Comment
  POM312427  Myosurus sessilis H. L. Mason 1952-4-26 14269 Contra Costa Vernal Pool, 3.5 miles S of Byron Comment
  UCR141655  Myriophyllum sibiricum M. R. Bell 1950-10-9 s.n. Contra Costa Near Concord, farm of E.J. Mangini Comment
  SBBG115937  Myriophyllum sibiricum M. R. Bell 1950-10-9 Contra Costa near Concord, from stock pond on farm of E. J. Mangini Comment
  UC1618349  Najas guadalupensis Barbara Ertter, Lynne Hosley 1991-9-22 10825 Contra Costa se side of Lafayette Reservoir in hills sw of Lafayette; Lafayette Reservoir 137 Comment
  UC1133134  Nassella cernua C. M. Belshaw 1936-5-9 2083 Contra Costa 1/2 mi n Nortonville (Plot 14); Mt. Diablo Comment
  CAS-BOT-BC259902  Nassella lepida Mary L. Bowerman 1938-6-30 3701 Contra Costa Mount Diablo. Blue Oak Flat 822 Comment
  CAS-BOT-BC260126  Nassella pulchra A. A. Beetle 1941-3-28 1718 Contra Costa Orinda Comment
  CDA1583  Nassella pulchra D. G. Kelch 2002-5-24 2 .021 Contra Costa Carquinez Strait; 5th St. Prairie, Crockett. Comment
  UC60251  Nassella pulchra Jos. Burtt Davy 1899-4-19 7864 Contra Costa Las Trampas Peak Comment
  UCD87434  Nassella pulchra A. A. Beetle 1941-3-29 1718 Contra Costa near Orinda. Comment
  CDA32558  Nassella pulchra A. A. Beetle 1941-3-28 1718 Contra Costa Orinda 0 Comment
  UC335966  Navarretia cotulifolia J. G. Lemmon Contra Costa Mount Diablo Comment
  JEPS103663  Navarretia hamata subsp. parviloba David Gowen 2003-6-14 Contra Costa Lime Ridge Open Space, on fire road below transmission tower 274 Comment
  UC2042805  Navarretia heterandra Kevin Hintsa 2000-5-28 Contra Costa Mount Diablo State Park, area across the road from Curry Point along foot trail (near road) Comment
  UC2042806  Navarretia heterandra Barbara Ertter with Joanne Kerbavaz 2000-8-20 17496 a Contra Costa South side Mount Diablo, across road from Curry Point trailhead. Comment
  UC2042987  Navarretia intertexta subsp. intertexta Barbara Ertter with Alan Prather 2003-6-7 18206 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, shortcut between Coyote Trail and Stone Corral Trail. Comment
  SEINET3163766  Navarretia mellita J. T. Howell 1938-6-30 13938 Contra Costa head of Siesta Valley Comment
  SEINET196200  Navarretia mellita Herbert L. Mason 1945-6-12 Contra Costa Ridge SE fo Mount.Diablo near summit of road up Marsh Creek. Comment
  UC2013027  Navarretia mellita Barbara Ertter with Travis Columbus 1990-6-10 9100 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill; trail heading down ridge on N side of Briones Peak. Comment
  UC125036  Navarretia nigelliformis subsp. radians Katharine Brandegee 1907-6-16 Contra Costa near Antioch; Judsonville Comment
  JEPS116940  Navarretia nigelliformis subsp. radians David Gowen 2008-4-21 867 Contra Costa South of Antioch, in Contra Loma Regional Park off Frederickson Lane. North, to northwest facing slope just NW of parking area for Black Diamond Mines Regional Preserve. Comment
  UC691764  Navarretia pubescens Mary L. Bowerman 1932-11-19 1652 Contra Costa Pioneer Camp Mount Diablo Comment
  JEPS112005  Navarretia squarrosa D. G. Kelch 2005-5-1 05 .191 Contra Costa Crockett - Edwards Canyon 150 Comment
  UCD48667  Navarretia squarrosa B. Crampton 1950-9-22 621 Contra Costa Found in a large stand, vacant lot 1 mile North of Richmond, Contra Costa Co., Calif. Comment
  UCD48695  Navarretia squarrosa B. Crampton 1950-7-22 621 Contra Costa Common on a level field in hard packed soil near Santa Fe Railroad tracks, 1 mile north of Richmond, Contra Costa County, California. Comment
  CAS-BOT-BC7190  Nemophila decumbens M. K. Curran 1883-5-1 s.n. Contra Costa Mt. Diablo 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
  UC1069147  Nemophila heterophylla H. S. Yates 1936-3-14 5359 Contra Costa Marsh Creek Mount Diablo Quad., Marsh Creek Comment
  UC1106202  Nemophila heterophylla Peter H. Raven 1950-3-12 1426 Contra Costa Happy Valley Road .9 mi above junction with Upper Happy Valley Road; Happy Valley Road 243 Comment
  UC67125  Nemophila heterophylla Harley P. Chandler 1901-4-5 948 Contra Costa Pine Canyon , Pine Canyon (Mt. Diablo) Comment
  UC691698  Nemophila heterophylla Mary L. Bowerman 1930-6-10 308 Contra Costa summit Mount Diablo; Mount Diablo Comment
  PASA2111  Nemophila heterophylla Annetta Carter 1929-3-29 Contra Costa near Clayton Comment
  POM65297  Nemophila heterophylla C. F. Baker 1903-4-28 2812 Contra Costa Mitchell s Canyon, Mt. Diablo. 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
  CHSC116618  Nemophila menziesii var. menziesii Lowell Ahart; Josephine Guardino 2016-4-19 20797 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along south side of road exit at Los Vaqueros Reservoir Marina, 2.3 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  JEPS111831  Nemophila menziesii var. menziesii D. G. Kelch 2005-3-25 05 .96 Contra Costa Fernandez Ranch Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak 115 Comment
  CAS-BOT-BC515974  Nemophila parviflora var. parviflora Barrett Anderson 1987-4-30 3498 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  JEPS128779  Nicotiana acuminata var. multiflora Kevin Hintsa 1997-6-29 Contra Costa Mount Diablo State Park, floodplain of Pine Creek, near Pine Pond. Comment
  UCD164893  Nicotiana glauca Henry House 1995-4-30 1995- 2 Contra Costa About 1.25 km west of Walnut Blvd., ca. 0.5 km south of Marsh Creek Rd. 60 Comment
  UC2028006  Nicotiana glauca Barbara Ertter with Amy Rusev 1998-1-17 15899 Contra Costa Edge of Lime Ridge Open Space at NW foot of Mount Diablo, around former quarry [subsequently developed] on south side of Ygnacio Valley Road. Comment
  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
  JEPS99491  Nuttallanthus texanus Mary Bowerman 1995-5-28 Contra Costa Mount Diablo, Knoll 1000' N of Wall Pt. Trail. Trail to Pine Pond from Wall Pt. fire road half encircles it on W side. Comment
  UC2027913  Nymphaea Barbara Ertter 2000-9-30 17539 Contra Costa West side Mount Diablo, pond on west side of Briones-Mount Diablo Trail south of Stonegate Trail junction. Comment
  CAS-BOT-BC140361  Oemleria cerasiformis Alice Eastwood 1914-3-6 s.n. Contra Costa Redwood Canyon Comment
  CDA38496  Oenanthe sarmentosa D. G. Kelch 2003-8-13 3 .1 Contra Costa Carquinez Strait Region; Martinez Marsh. 0 Comment
  CDA38497  Oenanthe sarmentosa D. G. Kelch 2003-8-13 3 .1 Contra Costa Carquinez Strait Region; Martinez Marsh. 0 Comment
  CAS-BOT-BC171588  Oenothera deltoides subsp. howellii J. H. Thomas 1953-4-25 3004 Contra Costa Antioch sand hills along San Joaquin River, 2 miles west of Antioch Bridge Comment
  POM310930  Oenothera deltoides subsp. howellii P. D. Hurd 1952-5-26 s.n. Contra Costa 1 mile east of Antioch in sand dunes, near western margin of San Joaquan River close to its mouth 30 Comment
  UC1073376  Oenothera deltoides subsp. howellii George B. Rossbach 1955-5-22 369 Contra Costa dunes near bank of San Joaquin River (e edge of Antioch); Antioch Comment
  UC1241161  Oenothera deltoides subsp. howellii Wm. Klein 1958-6-9 442 Contra Costa sandhills just n Antioch (along the channel) Comment
  RSA119391  Oenothera deltoides subsp. howellii William M. Klein 1958-6-9 442 Contra Costa Sandhills N of Antoch, along the San Joaquin River Channel. 2 Comment
  UCD17865  Oenothera deltoides subsp. howellii Glen Holstein 2000-6-23 s.n. Contra Costa California. Contra Costa County: Midway between Brentwood and Oakley on west side of Highway 4. Comment
  SEINET7719094  Oenothera dentata Chesnut, Drew 1889-4-18 Contra Costa Antioch Comment
  UC1584816  Oenothera elata subsp. hookeri Jerry Powell 1990-8-29 1590 Contra Costa Antioch National Wildlife Refuge Comment
  UC615575  Oenothera elata subsp. hookeri Beryl O. Schreiber 1933-10-5 934 Contra Costa marsh Mount Diablo Comment
  SEINET7719109  Oenothera micrantha Chesnut, Drew 1889-4-18 Contra Costa Antioch Comment
  UC1952821  Olea europaea Barbara Ertter with David Gowen 2010-11-17 20701 Contra Costa north face of Lime Ridge Open Space (City of Walnut Creek). Comment
  UC27891  Orobanche bulbosa F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  UC2027756  Orobanche bulbosa Barbara Ertter, Holly Forbes 1997-4-20 15560 Contra Costa North base of Mount Diablo, dogleg in Eagle Peak Trail from Coulter Pine Trail to Twin Peaks, chamissal. Comment
  UC444919  Orobanche californica subsp. feudgei T. S. Brandegee June 1884 Contra Costa Antioch. Comment
  JEPS10855  Orobanche fasciculata W. L. Jepson 1918-6-5 7618 Contra Costa Mount Diablo. North peak. 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
  UC1607664  Orobanche uniflora Barbara Ertter with Michelle Seidl 1992-3-14 10918 Contra Costa Morgan Territory Regional Preserve e of Mount Diablo; Morgan Territory Regional Preserve Comment
  JEPS10809  Orobanche uniflora subsp. occidentalis W. L. Jepson 1925-4-26 10693 Contra Costa Mt. Diablo. Comment
Read comments
Sep 13 2017
  JEPS111599  Osmorhiza berteroi A. G. Murdock 2004-4-30 263 Contra Costa Vaca Canyon 165 Comment
  UC692362  Osmorhiza brachypoda Mary L. Bowerman 1933-5-17 2108 Contra Costa branch of Curry due s Olafson's barn (near stream bottom); Mount Diablo 289 Comment
  CAS-BOT-BC318272  Packera breweri Alice Eastwood 1915-5-30 4458 Contra Costa Mt. Diablo. Comment
  CAS-BOT-BC318278  Packera breweri Joseph Whipple Congdon 1896-5-30 s.n. Contra Costa Mt. Diablo. Comment
  UC691357  Packera breweri Mary L. Bowerman 1932-5-6 1427 Contra Costa Mitchell Canyon Mount Diablo 251 Comment
  UCR263529  Panicum capillare Barbara Ertter, Lisa M. Schultheis 1996-9-2 15283 Contra Costa South Gate Road, south side of Mount Diablo, not far inside park entrance near base of mountain 500 Comment
  UC2012986  Panicum capillare Barbara Ertter with Lisa Schultheis 1996-9-2 15283 Contra Costa South side of Mount Diablo, South Gate Road not far inside park entrance near base of mountain. Comment
  SD241914  Papaver californicum Mary Bowerman 1978-5-14 Contra Costa Mount Diablo. Old wagon trail to mines on E face of Eagle Peak. Comment
  SEINET242918  Pappostipa speciosa Mary E. Barkworth, Surrey W. L. Jacobs; Betty Jacob 2003-4-7 2003 /6 Contra Costa Tilden Regional Park, east of Berkeley; plant originally from San Diego County, CA, 5 miles east of BAnner along Hwy 78 Comment
  JEPS101188  Parapholis incurva Dean W. Taylor 1990-4-10 10618 Contra Costa Byron Hot Springs Road, 1 mile S of Holey Road 24 Comment
  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
  UCD88472  Parapholis incurva Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  UCD88661  Parapholis incurva P. B. Kennedy 1928-5-12 s.n. Contra Costa Byron Hot Springs. Comment
  JEPS79630  Parvisedum pentandrum Edward Lee 1979-5-6 Contra Costa Mount Diablo, Lower Mitchell Canyon Lower Mitchell Canyon; Mount Diablo, Lower Mitchell Canyon Comment
  UC1818892  Parvisedum pentandrum Barbara Ertter, Mary Bowerman et al. 1995-5-7 14058 Contra Costa Three-Springs Creek open north facing slope around rock outcrops (near creek crossing above woods) with seepage. Comment
  CDA2133  Paspalum dilatatum D. G. Kelch, A. G. Murdock 2003-8-13 3 .112 Contra Costa Carquinez Strait Region; Martinez Marsh. Comment
  UC2028377  Paspalum dilatatum Barbara Ertter 1998-6-20 16241 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Bob Pond at Old Borges Ranch Comment
  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
  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
  UC573135  Pectocarya penicillata H. L. Mason 1932-3-20 6845 Contra Costa Antioch sand hills 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
  UC27313  Pedicularis densiflora W. L. Jepson Contra Costa Mount Diablo Comment
  UC16282  Pediomelum californicum F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo 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
  JEPS112054  Pellaea andromedifolia A. G. Murdock 2003-2-21 68 Contra Costa Mt. Wanda - Martinez Chaparral, west border of Mt. Wanda property. 120 Comment
  CAS-BOT-BC71204  Pellaea andromedifolia D. E. Breedlove 1970-4-18 17431 Contra Costa the north edge of Lafayette above Laurel Drive 243 Comment
  UC399537  Pellaea mucronata var. mucronata Michener May, 1894 Contra Costa Mt Diablo 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
  UC692120  Pellaea mucronata var. mucronata Mary L. Bowerman 1933-3-25 1774 Contra Costa ridge n of Emmons Canyon; Mt Diablo 335 Comment
  NY583859  Penstemon centranthifolius A. A. Heller 1908-4-16 8895 Contra Costa East of Antioch 22.9 Comment
  RSA181408  Penstemon centranthifolius James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  RSA412511  Penstemon centranthifolius H. de Forest 1930-4-6 s.n. Contra Costa Antioch. Banks of San Joaquin River. Comment
  SEINET12320780  Penstemon centranthifolius Unknown 1980-1 3879 Contra Costa Lime Ridge, N end, S of Ygnacio Valley Rd between Walnut Creek & Concord Comment
  UCD124222  Penstemon heterophyllus P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  JEPS85627  Penstemon heterophyllus var. heterophyllus W. L. Jepson 1921-6-16 9315 Contra Costa Mt. Diablo Comment
  UC1063391  Penstemon heterophyllus var. purdyi C. M. Belshaw 1936-5-15 2132 Contra Costa Briones Valley 1/2 mi w Marsh Creek (Antioch intersection); Mt. Diablo Quad., w of Marsh Creek Comment
  UCD137784  Pentagramma triangularis Herbert L. Mason 1924-11-23 1163 Contra Costa Las Trampas Ridge via Cashion. Comment
  JEPS41053  Pentagramma triangularis subsp. triangularis Rimo Bacigalupi and L. R. Heckard 1965-5-11 9078 Contra Costa sw of Richmond Brooks Isl; San Francisco Bay Comment
  CDA38511  Perideridia kelloggii D. G. Kelch 2004-7-9 4 .296 Contra Costa Carquinez Strait Region; Crockett - Carquinez Scenic Drive. East of Crockett West of Bull Valley SA. Comment
  UC1818960  Perideridia kelloggii Barbara Ertter, Kristin Ertter 1995-7-11 14481 Contra Costa Dried meadow on heavy clay soil downstream from Pine Pond (in Mt. Diablo State Park) 182 Comment
  CAS-BOT-BC413499  Persicaria amphibia Walter Knight; I. Knight; J. T. Howell; et al 1978-9-5 3246 Contra Costa Brown's Island. Crooked Slough 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
  UC1795740  Phacelia breweri Barbara Ertter, Tom Delendick 1996-5-2 14611 Contra Costa Mount Diablo State Park, Deer Flat Road north of Juniper Camp, at cut through open live oak forest, northwest-facing slope. 853 Comment
  UC1047007  Phacelia californica L. R. Heckard 1951-5-30 41 Contra Costa above Broadway Tunnel (along road to Grizzly Peak Blvd.) Comment
  UC2032819 Image available Phacelia californica Doran, Andrew Scott 2012-3-20 689 Contra Costa North end of Brooks Island along ridge overlooking artificial spit, southwest of caretakers residence. Comment
  JEPS18382  Phacelia ciliata var. ciliata Rimo Bacigalupi with F. Chisaki 1957-3-27 5762 Contra Costa at jnct. of Lone Tree Way and Hillcrest Ave. (road) (about 1/2 mi w of Lone Tree School, 3 1/2 mi se of Antioch) 39 Comment
  UC107374  Phacelia distans T. S. Brandegee May 1889 Contra Costa Antioch Comment
  UC24341  Phacelia distans J. Burtt Davy 1895-4-7 917 Contra Costa Antioch Comment
  RSA74783  Phacelia distans F. W. Peirson 1923-7-1 5302 Contra Costa Near summit of Mt. Diablo. Comment
  UC24351  Phacelia divaricata Harley P. Chandler 1901-4-5 968 Contra Costa Mt. Diablo Comment
  UC691703  Phacelia divaricata Mary L. Bowerman 1935-4-26 2897 Contra Costa w Indian Ceremonial Spring (hillside); Mount Diablo 1021 Comment
  UC672342  Phacelia douglasii H. L. Mason 1932-3-20 6838 Contra Costa Antioch Sand Hills Comment
  UC691696  Phacelia imbricata subsp. imbricata Mary L. Bowerman 1934-4-21 2543 Contra Costa knoll e Pioneer Camp; Mount Diablo Comment
  UC735094  Phacelia imbricata subsp. imbricata Lincoln Constance, T. Morley, R. H. Shan, and W. H. Wagner 1946-4-26 3033 Contra Costa trail from Juniper Camp to Deer Flat; Mount Diablo 838 Comment
  UC691476  Phacelia nemoralis subsp. nemoralis Mary L. Bowerman 1934-4-21 2537 Contra Costa Muir Area Mount Diablo Comment
  POM300966  Phacelia nemoralis subsp. nemoralis Mary L. Bowerman 1934-4-21 2537 Contra Costa Muir Area. Comment
  POM300985  Phacelia phacelioides Mary L. Bowerman 1935-5-8 2974 Contra Costa Muir Area. 1006 Comment
  UC691330  Phacelia phacelioides Mary L. Bowerman 1933-5-2 1950 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  UC691700  Phacelia tanacetifolia Mary L. Bowerman 1936-4-23 3404 Contra Costa w Deer Flat trail (just w of section line); Mount Diablo, Deer Ridge (Mitchell-Pine divide) 838 Comment
  SEINET7296998 Image available Phalaris arundinacea Malcolm A. Nobs, S. Galen Smith 1949-1 945 Contra Costa Otto's Black Bass Resort, 4 miles north of Kingston. Comment
  UC407384  Phalaris lemmonii Ira L. Wiggins 1930-4-17 4583 Contra Costa 1/4 mi s Byron Comment
  UCD89059  Phalaris minor Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  UCD146719  Phalaris paradoxa G. F. Hrusa; D. Crowe 1998-5-8 14368 Contra Costa Sacramento-San Joaquin River Delta. On Dow Chemical property at Pittsburg. 15 Comment
  SEINET5566389  Phalaris paradoxa E. A. Bernays 1985-1 s.n. Contra Costa Russell Reserve. Comment
  UC52449  Phlox gracilis H. M. Hall 1901-3-22 1685 Contra Costa Port Costa San Francisco Bay Region Comment
  UC2070624  Pholistoma membranaceum Barbara Ertter 2003-3-28 18128 Contra Costa Round Valley Regional Preserve, E-most in line of rock outcrops SW of Crest of Hardy Canyon Trail, Comment
  UC692036  Phoradendron villosum Mary L. Bowerman 1930-6-22 358 Contra Costa on flat above Mitchell Canyon (Mount Diablo); Mount Diablo Comment
  UC692037  Phoradendron villosum Mary L. Bowerman 1932-10-22 1636 Contra Costa flats at base of North Peak Mt. Diablo (rd. to Quicksilver Mine) Comment
  UC692038  Phoradendron villosum Mary L. Bowerman 1930-9-9 450 Contra Costa knoll by canyon running past Gabriel Hinks' Comment
  UC311199  Phragmites australis A. D. E. Elmer July 1903 4541 Contra Costa Martinez Comment
  UC1789168  Phyllostachys aurea Barbara Ertter 2001-5-26 17652 Contra Costa Stamm Unit of Antioch Dunes National Wildlife Refuge east of Antioch, single well-established clump at base of river bank. Comment
  JEPS65569  Pickeringia montana var. montana W. L. Jepson 1943-6-8 20844 Contra Costa Moraga Ridge Comment
  UC692284  Pickeringia montana var. montana Mary L. Bowerman 1933-6-7 2277 Contra Costa Inner Black Hills Mount Diablo (n exposure, w of 1970) Comment
  UC692170  Pinus attenuata Mary L. Bowerman 1931-3-1 534 Contra Costa s of summit of ridge (e of meridian); Inner Black Hills Comment
  UC1061682  Pinus coulteri N. Floy Bracelin 1941-12-29 1835 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC2028646  Pinus halepensis Barbara Ertter 2001-3-18 17564 Contra Costa Shell Ridge Open Space SW of Walnut Creek, around Muir Reservoir tank at north end of main ridge Comment
  JEPS111991  Pinus pinea D. G. Kelch 2005-1-21 05 .7 Contra Costa Crockett Collected along railroad tracks in West Valona across from the decommissioned sewage treatment plant 15 Comment
  JEPS111992  Pinus sabiniana D. G. Kelch 2004-4-3 04 .47 Contra Costa Martinez - Vine Hill 44 Comment
  JEPS46901  Pinus sabiniana W. L. Jepson 1907-4-27 2648 a Contra Costa saddle at e head Mitchell Canyon; Mt. Diablo, Mitchell Canyon Comment
  UC692100  Pinus sabiniana Mary L. Bowerman 1933-5-10 2070 Contra Costa 100 ft below Muir Area Comment
  JEPS84499  Piperia elegans Jack Stratford 1980-8-6 Contra Costa Huckleberry Trail Huckleberry Botanic Regional Preserve Comment
  CAS-BOT-BC137272  Piperia elegans John Thomas Howell 1942-8-23 17862 Contra Costa Field redacted by CAS, contact the data manager for more information 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
  UC1789206  Pistacia atlantica Barbara Ertter with Dan Norris 2001-4-8 17603 Contra Costa Lime Ridge Open Space, main pit of west quarry area N of adjacent golf course 121 Comment
  CHSC67891  Plagiobothrys acanthocarpus James D. Jokerst 1989-3-29 3070 Contra Costa Byron Hot Springs area NE of Livermore, adjacent to pipeline on terrace S of ephemeral creek. Comment
  JEPS25356  Plagiobothrys acanthocarpus Rimo Bacigalupi with Paul C. Hutchison and John Weiler 1959-3-19 6966 Contra Costa 1 mi se Byron (fields e of Byron rd) 6 Comment
  UC881329  Plagiobothrys acanthocarpus Lewis S. Rose 1941-3-13 41037 Contra Costa 3 mi s Byron 9 Comment
  UC691333  Plagiobothrys bracteatus Mary L. Bowerman 1931-4-4 665 Contra Costa margins of dried-up pond w Turtle Rock; Mount Diablo Comment
  POM204086  Plagiobothrys canescens L. S. Rose 1933-3-29 33046 Contra Costa Pittsburg Comment
  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
  CHSC106838  Plagiobothrys leptocladus Barbara Ertter; Jim Jokerst, Dave Magney 1989-4-5 8129 Contra Costa SE part of county. Ca 15 air miles SW of Stockton, alkali sink W and adjacent to Clifton Court Forebay. Comment
  JEPS68084  Plagiobothrys nothofulvus W. L. Jepson 1923-4-22 9878 a Contra Costa Mt. Diablo Comment
  UC180105  Plagiobothrys nothofulvus Harley P. Chandler 1901-4-5 962 Contra Costa Mount Diablo between Pine Canyon and summit; Mount Diablo Comment
  RSA666369  Plagiobothrys stipitatus Barbara Ertter, J. D. Jokerst, D. Magney 1989-4-5 8120 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  UC573079  Plagiobothrys stipitatus var. micranthus H. L. Mason 1929-3-31 5144 Contra Costa Briones Valley Comment
  RSA0069382  Plagiobothrys stipitatus var. micranthus Katie Gallagher, Nick Jensen 2014-4-26 207 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  JEPS105697  Plagiobothrys tenellus David Gowen 2004-4-13 28 Contra Costa Lime Ridge Open Space. Ridge Trail, south of its junction with Blue Oak Trail, ca. 700' elev. Comment
  CHSC67897  Plagiobothrys trachycarpus James D. Jokerst 1988-3-21 2995 Contra Costa Los Vaqueros project in Livermore Valley ca. 1 mi W of Vasco Rd. and ca. 0.5 mi S of Camino Diablo Rd. Comment
  JEPS116943  Plagiobothrys trachycarpus David Gowen 2008-4-16 863 Contra Costa Just south of parking area for Black Diamond Mines Regional Preserve on Frederickson Road. Comment
  RSA128482  Plagiobothrys trachycarpus Robert F. Hoover 1941-4-12 4840 Contra Costa 1 mile N of Lone Tree Valley. Comment
  POM61282  Plantago elongata subsp. pentasperma C. F. Baker 1903-4-27 2866 Contra Costa Byron. Comment
  JEPS68980  Plantago erecta Edward Lee 1935-3-29 1315 Contra Costa Nortonville, s watershed of Kirker Pass Kirker Pass, Nortonville Comment
  PASA26  Plantago erecta Annetta Carter 1929-3-31 Contra Costa Near Clayton Comment
  RSA181409  Plantago erecta James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  UC32534  Plantago erecta J. P. Tracy 1900-3-24 619 Contra Costa Point Richmond San Francisco Bay Region 15 Comment
  UC1950198  Plantago erecta Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8141 Contra Costa sink W and adjacent to Clifton Court Forebay, ca 15 airmiles SW of Stockton Comment
  CDA34274  Plantago lanceolata D. G. Kelch 2009-8-9 9 .558 Contra Costa S of Ozol Rock. Comment
  JEPS112000  Plantago major D. G. Kelch 2004-6-6 04 .227 Contra Costa Martinez - Train Station Downtown Martinez. Alhambra Creek near bay and railroad Station. Large perennial to 65 cm. In wet areas. 2 Comment
  CDA32860  Plantago subnuda D. G. Kelch 2010-10-5 10 .423 Contra Costa The Delta.; Antioch shoreline. West of Fulton shipyard. 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-BC91605  Platystemon californicus John Thomas Howell 1933-5-14 11277 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
  UC101594  Platystemon californicus Katharine Brandegee 1907-5-5 f Contra Costa between Antioch and Marsh Creek; between Antioch and Marsh Creek Comment
  UC692173  Platystemon californicus Mary L. Bowerman 1935-3-24 2748 Contra Costa near crest of Treat Avenue (w of Cowell) Mount Diablo Comment
  CAS-BOT-BC91599  Platystemon californicus Mary L. Bowerman 1932-3-23 1133 Contra Costa Mount Diablo. Overlooking Donner Canyon. 304 Comment
  CAS-BOT-BC91606  Platystemon californicus Alice Eastwood 1906-5-1 s.n. Contra Costa Berkeley. Comment
  UC691526  Plectritis ciliosa subsp. ciliosa Mary L. Bowerman 1933-4-15 1853 Contra Costa Canyon s of Arroyo del Cerro (Mount Diablo); Mount Diablo Comment
  UC691527  Plectritis ciliosa subsp. ciliosa Mary L. Bowerman 1931-3-29 629 Contra Costa Mount Diablo, on n side of Cave Point below summit Cave Point; Mount Diablo, Cave Point Comment
  JEPS2798 Image available Plectritis ciliosa subsp. insignis J. Burtt Davy 1895-4-7 953 Contra Costa foothills Antioch; Antioch, Contra Costa Co. Comment
  UC691528  Plectritis ciliosa subsp. insignis Mary L. Bowerman 1931-3-8 558 Contra Costa above mouth of Mitchell Canyon (Mount Diablo); Mount Diablo 457 Comment
  JEPS14520  Plectritis macrocera L. T. Dempster 1956-5-26 1003 Contra Costa above Overhill Court (Orinda); Orinda Comment
  POM300986  Plectritis macrocera Mary L. Bowerman 1933-4-22 1894 Contra Costa Inner Black Hills: spur running northwest from Cave Pt. Comment
  CAS-BOT-BC260946  Pleuropogon californicus var. californicus Peter Kamb; Francia Chisaki; Galen Smith 1951-4-14 1978 Contra Costa Margins of small pond 0.2 miles south of junction of Highways 4 and 21, 7 miles north of Walnut Creek 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
  UCD159502  Pluchea odorata var. odorata D. S. Park 2010-9-11 251 -1 Contra Costa Waterfront Rd. Growing in ditch along roadside. Disturbed. Wet. 5 Comment
  SBBG44987  Poa annua A. Eastwood, J. T. Howell 1936-4-19 Contra Costa Antioch Comment
  CHSC107517  Poa howellii D. G. Kelch 2006-5-4 06 .127 Contra Costa Coast Range: Vaca Canyon, on North facing road cut/bank along Alhambra Valley Road. 162 Comment
  UCD91129  Poa howellii P. B. Kennedy 1916-1 s.n. Contra Costa Pinehurst. Comment
  CAS-BOT-BC246645  Poa howellii Peter H. Raven; H. L. Mason; R. Ornduff; et al 1957-4-11 10622 Contra Costa Curry Canyon, 4.0 miles s. of Recreation Ground Comment
  CDA9433  Poa secunda D. G. Kelch 2002-5-2 s.n. Contra Costa Altamont Hills; Corral Hollow Rd. 0 Comment
  CAS-BOT-BC236386  Poa secunda subsp. secunda Mary L. Bowerman 1933-4-15 1869 Contra Costa Mount Diablo. Canyon S of Arroyo del Cerro: Rocky knoll 250 feet below spring Comment
  CAS-BOT-BC236391  Poa secunda subsp. secunda A. A. Beetle 1941-3-23 1713 Contra Costa 1 mile E of St. Mary's College 182 Comment
  CHSC25045  Poa secunda subsp. secunda Willis Ball 1975-3-9 480 Contra Costa In area #8. On slope of a hill ca. 510 yds. w of Contra Loma Blvd. 124 Comment
  UC691181  Poa secunda subsp. secunda Mary L. Bowerman 1932-4-27 1381 Contra Costa s face Oyster Ridge (canyon w of Riggs Canyon); Mt Diablo 335 Comment
  SEINET5548629  Poaceae J. Hamai 1985-1 s.n. Contra Costa Russell Reserve Comment
  JEPS112472  Pogogyne serpylloides D. G. Kelch 2005-5-1 05 .196 Contra Costa Crockett - Edwards Canyon. 150 Comment
  RSA0022141  Pogogyne serpylloides Mary L. Bowerman 1931-5-21 876 Contra Costa Curry Canon. Hard, open flat by Olafsons barn 274 Comment
  UC1988933  Pogogyne serpylloides John Thomas Howell 1930-4-22 4747 Contra Costa Bald Peak Comment
  JEPS65184  Pogogyne zizyphoroides L. R. Heckard 1971-4-15 2483 Contra Costa At intersection of Holey Road, South of Byron. Comment
  UC32588  Pogogyne zizyphoroides Chestnut and Drew 1889-4-18 Contra Costa Antioch Comment
  UC650682  Polygonum aviculare subsp. aviculare Ira L. Wiggins 1930-4-18 4612 Contra Costa Jersey Island Comment
  CAS-BOT-BC413970  Polygonum aviculare subsp. aviculare R. E. Frenkel 1964-4-8 421 Contra Costa By the south side of Marsh Creek Road near Marsh Creek 33 Comment
  UC1784908  Polygonum aviculare subsp. depressum Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15671 Contra Costa Martinez 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
  UC1594171  Polygonum punctatum Jerry Powell 1991-6-29 1610 Contra Costa Antioch National Wildlife Refuge; intertidal zone Comment
  JEPS100159  Polypodium calirhiza G. Smick 2003-6-6 GAS 217 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1446058  Polypodium calirhiza Alan Smith with Ed Lee 1979-4-25 730 Contra Costa n side Mt. Diablo Peak (trail beyond Devil's Elbow toward saddle between Mt. Diablo and North Peak) 1066 Comment
  UC1541044  Polypodium calirhiza Dick Moe 1985-2-24 Contra Costa Red Rock Isl.; San Francisco Bay Comment
  UC805287  Polypodium calirhiza W. H. Wagner Jr. 1950-6-4 Contra Costa along rd. above San Pablo Reservoir (near Inspiration Point) Comment
  CAS-BOT-BC72043  Polypodium calirhiza Mary L. Bowerman 1935-3-15 2736 Contra Costa Arroyo del Cerro, east fork 262 Comment
  UC691207  Polypogon interruptus Mary L. Bowerman 1936-8-17 3528 Contra Costa Sulphur Spring in Pine Canyon Mount Diablo; , Pine Canyon, Sulphur Spring 137 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
  UC50634  Polypogon monspeliensis Jos. Burtt Davy 1900-6-7 6672 Contra Costa near Martinez; near Martinez Comment
  UC790996  Polypogon monspeliensis A. A. Beetle 1941-6-24 1750 Contra Costa San Francisco Bay Point Richmond; , Point Richmond Comment
  SD34474  Polypogon monspeliensis A/. A. Beetle 1941-6-24 1750 Contra Costa Point Richmond on San Francicso Bay, wet sandy places Comment
  CAS-BOT-BC237473  Polypogon viridis Walter & Irja Knight 1969-6-4 2623 Contra Costa In the Regional Parks Botanic Garden Comment
  UC579898  Populus fremontii subsp. fremontii Annetta Carter 1934-3-30 466 Contra Costa Nortonville Comment
  UC846002  Populus fremontii subsp. fremontii Lewis S. Rose 1941-3-13 41028 Contra Costa 7 mi w Byron (Marsh Creek); Marsh Creek Comment
  SD211523  Potamogeton diversifolius Barbara Ertter, Brad Olson 1991-9-28 10839 Contra Costa San Pablo Reservoir between Orinda and El Sobrante, in shallow water at South end of reservoir 91 Comment
  CDA29217  Potentilla glandulosa D. G. Kelch 2006-5-7 9 .153 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  UCSC000363  Potentilla rivalis var. millegrana I. J. Condit 2008-8-19 s.n. Contra Costa Antioch Comment
  UC2027738  Prunus cerasifera Barbara Ertter 1997-2-11 15452 Contra Costa North side of Mount Diablo, Donner Cabin site on Donner Canyon Road. Comment
  UC2027755  Prunus cerasifera Barbara Ertter, Mary Bowerman 1996-11-1 15407 Contra Costa North base of Mount Diablo, lower Donner Creek. Comment
  JEPS112076  Prunus dulcis D. G. Kelch 2003-3-21 03 .43 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 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
  JEPS112091  Prunus lyonii D. G. Kelch 2004-5-9 04 .215 Contra Costa Crockett - Eckley Hills North of Bull Valley Staging Area. Rare 13 Comment
  UC691121  Prunus subcordata Mary L. Bowerman 1933-5-21 2157 Contra Costa S from Curry Canyon ( head of Grape Gully); Mount Diablo Comment
  JEPS111702  Pseudognaphalium californicum D. G. Kelch 2004-4-26 04 .132 Contra Costa Point Pinole 8 Comment
  UC691825  Pseudognaphalium californicum Mary L. Bowerman 1930-6-18 340 Contra Costa Dan Cook Canyon 289 Comment
  JEPS99520  Pseudognaphalium luteoalbum Mary L. Bowerman 1978-6-24 Contra Costa Mount Diablo, Mitchell Creek, below reservoir. 190 Comment
  CAS-BOT-BC356973  Pseudognaphalium luteoalbum John Thomas Howell; Gordon H. True 1972-6-29 48934 Contra Costa On Byron Hot Springs Road southeast of Byron Comment
  CAS-BOT-BC357593  Pseudognaphalium stramineum Walter Knight; Joanne Dean 1978-8-14 3135 Contra Costa Browns Island Comment
  UC691818  Psilocarphus tenellus Mary L. Bowerman 1931-4-11 702 Contra Costa Mouth of Pine Canyon Mount Diablo Comment
  CAS-BOT-BC361877  Psilocarphus tenellus E. M. Zeile 1924-5-4 s.n. Contra Costa Hills above Walnut Creek Comment
  POM138622  Ptelea angustifolia Katherine Brandegee 1907-6-16 s.n. Contra Costa Antioch Comment
  RSA138624  Ptelea angustifolia Katherine Brandegee 1907-6-16 137 Contra Costa Antioch Comment
  SEINET12235404  Ptelea baldwinii M. T. Doretl 1930-1 79 Contra Costa Marsh Creek Comment
  RSA0084070  Ptelea baldwinii subsp. crenulata L. S. Rose 1936-4-24 36147 Contra Costa Marsh Creek. 6 miles E of Clayton. 61 Comment
  CAS-BOT-BC148639  Ptelea crenulata W. L. Jepson 1918-6-5 7603 a Contra Costa Mt. Diablo, Donner Canyon Comment
  CAS-BOT-BC148641  Ptelea crenulata H. E. McMinn 1922-10-1 409 Contra Costa Mitchell Canyon, Mt. Diablo Comment
  JEPS40167  Ptelea crenulata H. L. Mason 1928-3-31 Contra Costa Mt. Diablo Comment
  JEPS40171  Ptelea crenulata W. L. Jepson 1923-6-10 9993 Contra Costa Upper Marsh Creek; Mt. Diablo Comment
  JEPS97553  Ptelea crenulata R. D. Stone 1985-3-15 657 Contra Costa Souza Ranch Byron (hills dividing the Kellogg and Brushy Creek drainages; ca. 5 mi SW of) 259 Comment
  UC1177068  Ptelea crenulata Joanne Taylor 1941-7-18 22 Contra Costa hills by Nortonville 213 Comment
  UC1614255  Ptelea crenulata Charles M. Belshaw 1935-6-10 696 Contra Costa Morgan Territory Rd. Comment
  UC17374  Ptelea crenulata Prof. W. L. Jepson 1898-10-18 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC148618  Ptelea crenulata J. F. Emmel 1971-8-22 384 Contra Costa Kirker Creek ca. 0.2 air mile S. of site of Nortonville 251 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
  UCSB4881  Ptelea crenulata Keator, Glenn 1959-7-1 Contra Costa Laurel camp on Mt. Diablo Comment
  JEPS111934  Pteridium aquilinum A. G. Murdock 2003-9-12 160 Contra Costa Pinole On hill east of I-80 between Appian Way and Pinole Valley Road 33 Comment
  JEPS111935  Pteridium aquilinum A. G. Murdock 2004-4-30 244 Contra Costa Vaca Canyon On north side of road along creek 165 Comment
  UCD35992  Pterostegia drymarioides Beecher Crampton 1949-4-1 422 Contra Costa Contra Costa County, Moraga Ridge. 60 Comment
  UC2028967  Puccinellia nuttalliana Barbara Ertter with Brad Olson et al. 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
  UCSC010010  Quercus Al Keuter 2014-5-23 00 097 A Contra Costa Along Reliez Valley Road, Lafayette 72 Comment
  UC2028193  Quercus X chasei Barbara Ertter 1997-11-1 15879 Contra Costa South side Mount Diablo, near Balancing Rock on Knobcone Point Road. Comment
  UC1135753  Quercus X morehus R. W. Lundh 1932-9-3 155 Contra Costa 1 mi n North Peak; Mt. Diablo Quad. 609 Comment
  UC2012970  Quercus X morehus Barbara Ertter with Tony Morosco 1996-7-27 15038 Contra Costa Mount Diablo State Park, Wasserman Trail on ridge below Cardinet Oaks Road. Comment
  CAS-BOT-BC45661  Quercus agrifolia Mary L. Bowerman 1933-4-22 1905 Contra Costa Curry-Cave Point trail: By water-trough, Mount Diablo 457 Comment
  CDA32855  Quercus agrifolia D. G. Kelch 2010-10-5 10 .416 Contra Costa The Delta; Just east of Antioch bridge. Comment
  JEPS111960  Quercus agrifolia D. G. Kelch 2004-3-12 04 .16 Contra Costa Crockett - West Valona 1 km west of Carquinez bridge. Hill above San Pablo Road 87 Comment
  UC5471  Quercus agrifolia A. Resmond 1862-10-24 1474 Contra Costa near summit between Oakland and Walnut Creek 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
  CAS-BOT-BC62696  Quercus chrysolepis L. R. Abrams 1910-10-8 435 Contra Costa Mt. Diablo summit 1158 Comment
  UC1135397  Quercus chrysolepis R. C. Wilson 1935-3-28 155 Contra Costa Top of Mt. Diablo Mt. Diablo Quad. 1158 Comment
  OBI42731  Quercus chrysolepis Cathy Peterson 1971-11-6 4 Contra Costa Mount Diablo, south side, approx 10 yds from Rock City entrance 610 Comment
  UC2029049  Quercus chrysolepis Barbara Ertter with Linda Vorobik 2000-1-9 16892 Contra Costa Las Trampas Regional Wilderness in East Bay Hills west of Danville' Comment
  CAS-BOT-BC86643  Quercus douglasii Alice Eastwood 1923-5-4 11732 Contra Costa Mt. Diablo Comment
  JEPS111964  Quercus douglasii D. G. Kelch 2004-9-2 04 .344 Contra Costa Martinez - West: Ozol Rock and Scenic Drive East of Ozol 22 Comment
  JEPS37387  Quercus douglasii W. L. Jepson 1912-4-26 2644 Contra Costa Mt. Diablo Comment
  POM301005  Quercus durata Mary L. Bowerman 1932-10-16 1632 Contra Costa Donner Canyon Trail. Comment
  CDA37340  Quercus garryana D. G. Kelch 2010-10-31 10 .445 Contra Costa South Pinole Peak. Comment
  UC691276  Quercus garryana Mary L. Bowerman 1931-8-29 1035 Contra Costa Fossil Ridge Mount Diablo Comment
  UC691287  Quercus garryana Mary L. Bowerman 1935-11-30 3352 Contra Costa between Gibralter Rock and Rock City Road; Mount Diablo Comment
  UC691288  Quercus garryana Mary L. Bowerman 1930-10-19 491 Contra Costa Fossil Ridge (Garden-of-the-Gods) Mount Diablo Comment
  UCD17435  Quercus garryana E. Dean; M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 657 Contra Costa California. Contra Costa County: Mount Diablo State park, Fossil Ridge, along fire road that begins at the parking lot southeast of Rock City and climbs onto Fossil Ridge in southeasterly direction, ca. 0.1 mile from Rock City, slightly downslope of road. 487 Comment
  JEPS111963  Quercus kelloggii D. G. Kelch 2004-9-2 04 .330B Contra Costa Franklin Canyon - McHarry Ranch Rd. McHarry Ranch Road. 126 Comment
  UC691314  Quercus kelloggii Mary L. Bowerman 1935-11-30 3354 Contra Costa w of Gibraltar Rock; Mount Diablo, Fossil Ridge Comment
  UCSC008846  Quercus kelloggii Al Keuter 2014-5-23 AK 00 -096 Contra Costa Along Bear Creek Road at San Pablo Creek. 91 Comment
  JEPS37352  Quercus lobata W. L. Jepson 1916-10-22 6852 Contra Costa Las Trampas Ridge Comment
  UC691286  Quercus lobata Mary L. Bowerman 1931-9-6 1036 Contra Costa n of Curry Canyon (Clayton-Livermore Road); Mount Diablo Comment
  UC848107  Quercus lobata Lewis S. Rose 1938-10-28 38306 Contra Costa 6 mi e Clayton; Marsh Creek 152 Comment
  SEINET12034644  Quercus lobata M. T. Doutt 1930-1 81 Contra Costa Marsh Creek,6 mi E of Clayton Comment
  UCD47071  Quercus palmeri J. M. Tucker 1981-4-25 4453 D Contra Costa California, Contra Costa County: Antonio Souza Ranch southwest of Byron (extended Section NW quarter Sec. 31, R3E, T1S, Mt. Diablo Meridian). 309 Comment
  SBBG115590  Quercus parvula var. shrevei E. Dean, B. Ertter, J. M. Tucker, K. Chaney 2000-9-13 650 Contra Costa City of El Sobrante, El Sobrante Ridge, upslope of the terminus of Heavenly Ridge Rd, jct of Heavenly Ridge Trail and Manzanita Trail 213 Comment
  UCD47151  Quercus parvula var. shrevei H. D. Jones 1910-11-26 s.n. Contra Costa Mt. Diablo, Contra Costa County. Comment
  CAS-BOT-BC104707  Quercus wislizeni John Thomas Howell 1950-6-5 26637 Contra Costa Nortonville Comment
  CAS-BOT-BC104715  Quercus wislizeni H. E. McMinn s.n. Contra Costa near summit of Mt. Diablo Comment
  JEPS37967  Quercus wislizeni W. L. Jepson 1907-4-26 2647 Contra Costa Mt. Diablo Comment
  UC1135847  Quercus wislizeni R. W. Lundh 1932-8-17 133 Contra Costa 1 mi e Round Valley; Mt. Diablo Quad. 518 Comment
  UC691292  Quercus wislizeni Mary L. Bowerman 1933-9-30 2448 Contra Costa e end Meridian Flat (e of Pioneer Camp); Mount Diablo Comment
  SEINET13954084 Image available Quercus wislizeni Peter H. Raven 1950-1 1355 Contra Costa Muraga Ridge 305 Comment
  UC584417  Rafinesquia californica Univ. of Calif., Hort. Genetics 1937-1 564 Contra Costa Briones Hills Comment
  CAS-BOT-BC362445  Rafinesquia californica Brandegee No date on label s.n. Contra Costa Mt Diablo Comment
  POM270022  Ranunculus aquatilis var. capillaceus Mary L. Bowerman 1931-4-4 662 Contra Costa Pool W of Turtle Rock (can be seen from top of rock) covering a considerable area of the bottom of the dried up pool Comment
  CDA29216  Ranunculus californicus D. G. Kelch 2006-5-7 6 .147 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. 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
  JEPS112060  Ranunculus californicus D. G. Kelch 2005-4-15 05 .138 Contra Costa Rodeo Creek 100 ms west of previous site 100 Comment
  JEPS73327  Ranunculus canus Edward Lee 1935-3-10 1284 Contra Costa Donovan Road Kirker Pass ((w watershed of Kirker Creek)) Comment
  POM149874  Ranunculus canus Jos. Burtt Davy 1898-05 s.n. Contra Costa San Ramon, Mt Diablo Comment
Read comments
Jan 23 2011
  POM268399  Ranunculus canus Lyman Benson 1931-3-18 2655 Contra Costa Mt. Diablo near Danville; Mt. Range: Mt. Diablo; Watershed: Walnut Creek 152 Comment
  RSA0027697  Ranunculus canus Barbara J. Ertter, Stu Garrett 1997-3-29 15523 Contra Costa West side Mount Diablo, Burma Road above North Gate Road. Comment
  UC118266  Ranunculus canus var. canus T. S. Brandegee May 1889 Contra Costa Antioch Comment
  UC9453  Ranunculus canus var. canus J. Burtt Davy 1895-4-7 915 Contra Costa Antioch 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
  UC692123  Ranunculus hebecarpus Mary L. Bowerman 1931-3-29 613 Contra Costa Riggs Canyon Mount Diablo Comment
  UC9445  Ranunculus hebecarpus Geol. Survey 1862-1 1049 Contra Costa Mt. Diablo; foothills Comment
  POM269205  Ranunculus hebecarpus H. L. Mason 1929-3-29 5126 Contra Costa Marsh Creek Road, 2 miles above Clayton Comment
  POM269206  Ranunculus hebecarpus Mary L. Bowerman 1932-3-23 1130 Contra Costa Ridge E of Donner Canyon: At Saddle, in shade of Quercus Douglasii 274 Comment
  POM282740  Ranunculus hebecarpus L. S. Rose 1934-3-21 34071 Contra Costa Marsh Creek, 6 miles E of Clayton. Comment
  SEINET12765193  Ranunculus lobbii Barbara Ertter, David Gowen 2006-3-1 18665 Contra Costa Upper San Leandro Reservoir Watershed (EBMUD) south of Moraga, along SE end of Rocky Ridge Road as it drops to King Cyn Rd.; 0 180 Comment
  SEINET9161829  Ranunculus lobbii B. Ertter, D. Gowen 2006-3-1 18665 Contra Costa Upper San Leandro Reservoir Watershed (EBMUD) S of Moraga, along SE end of Rocky Ridge Road as it drops to King Canyon Road. 180 Comment
  UC2043025  Ranunculus lobbii Barbara Ertter with David Gowen 2006-3-1 18665 Contra Costa Upper San Leandro Reservoir Watershed (EBMUD) south Moraga, shallow small pond along SE end of Rocky Ridge Road as it drops to King Canyon Road. Comment
  UC2062687  Ranunculus occidentalis Barbara Ertter with David Gowen 2013-4-19 21317 Contra Costa Southwestern Mount Diablo State Park southeast of Walnut Creek, lower end of Little Yosemite Trail. Comment
  RSA0029287  Ranunculus occidentalis Barbara J. Ertter, Dan Norris 2001-4-15 17607 Contra Costa Diablo Foothills Regional Park. At east end of Alamo Trail. 213 Comment
  UC61031  Ranunculus orthorhynchus var. bloomeri N. L. Gardner 1904-2-17 Contra Costa Happy Valley Comment
  RSA721368  Ranunculus sceleratus Barbara J. Ertter 1995-7-11 14485 Contra Costa W side of Mt. Diablo SW of Walnut Creek, dense growth at lower end of Pine Pond. 183 Comment
  UC2028212  Raphanus raphanistrum Barbara Ertter with Richard K. Brummitt 1998-5-13 16134 Contra Costa North Gate Road on west side of Mount Diablo, hairpin turn opposite Angel Kerley trailhead. Comment
  POM181430  Raphanus sativus I. L. Wiggins 1930-4-18 4610 Contra Costa Jersey Island. Comment
  UC606739  Raphanus sativus Edward Lee 1936-4-19 1961 Contra Costa Red Rock, ne corner of the island Red Rock; San Francisco Bay Region, Red Rock Comment
  SEINET11268201  Raphanus sativus Barbara Ertter 1998-6-12 16160 Contra Costa North Gate Road on west flank of Mount Diablo, dogleg in road above raches opposite Angel Kerley trail head.; 0 579 Comment
  JEPS112063  Reseda alba D. G. Kelch 2004-4-11 04 .76 Contra Costa Crockett - Crolona Heights Hillside above Rolf Drive. Lower Crolona heights. 15 Comment
  CDA23628  Rhamnus alaternus D. G. Kelch 2007-9-8 7 .569 Contra Costa Carquinez Strait; Pinole Valley Park. Comment
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Apr 29 2013
  UC2062667  Rhamnus alaternus Barbara Ertter with David Gowen 2006-4-14 18667 Contra Costa Lime Ridge Open Space (City of Concord) at NW foot of Mount Diablo, SE side of Ygnacio Valley Road. Comment
  UC1071553  Rhamnus californica N. French 1933-3-13 35 Contra Costa San Pablo, above Sheldon School San Francisco Quad. 91 Comment
  CDA9186  Rhamnus crocea Christopher Thayer 1995-6-5 s.n. Contra Costa Carquinez Strait; W of Pinole Peak. Comment
  JEPS112064  Rhamnus crocea Christopher Thayer 1995-6-5 Contra Costa West of Pinole Peak 274 Comment
  JEPS112065  Rhamnus crocea A. G. Murdock 2004-5-28 290 Contra Costa Pinole Peak 405 Comment
  UC692584  Rhamnus crocea Mary L. Bowerman 1932-9-17 1579 Contra Costa Donner Canyon, w branch Mount Diablo Comment
  JEPS42023  Rhamnus ilicifolia W. L. Jepson 7583 Contra Costa Donner Canyon Mt. Diablo 609 Comment
  POM136516  Rhamnus ilicifolia A. D. E. Elmer 1903-05 4326 Contra Costa Mount Diablo. Comment
  UC1177069  Rhamnus tomentella subsp. tomentella Peter H. Raven 1950-7-5 2486 Contra Costa near Juniper Camp; Mt. Diablo Comment
  CAS-BOT-BC200695  Rhus aromatica Peter H. Raven; H. L. Mason; R. Ornduff; et al. 1957-4-11 10625 Contra Costa Curry Canyon, 4.0 mi. s. of Recreation Ground Comment
  RSA498217  Rhus trilobata var. pilosissima H. de Forest 1930-4-6 s.n. Contra Costa SE of Mortonville, Small coal mine ravine. 274 Comment
  JEPS77003 Image available Ribes amarum Robert M. Lloyd 1963-3-17 2133 Contra Costa 0.5 mi e Grizzly Peak Road (on Skyline Drive (across from 7090 Skyline Drive), Huckleberry trail); Huckleberry trail Comment
  SBBG28501  Ribes californicum E. Mulliken 1905-1-28 Contra Costa Wildcat Cyn, Berkeley Hills Comment
  SD2125  Ribes californicum Earle Mulliken 1905-1-28 161 Contra Costa Wildcat CaA'on, Berkeley Hills. Comment
  CAS-BOT-BC92921  Ribes californicum var. californicum John Thomas Howell 1926-3-7 1669 Contra Costa Mount Diablo. Comment
  UC583115  Ribes malvaceum Alice Eastwood, John Thomas Howell 1936-4-19 2140 Contra Costa Nortonville Comment
  CAS-BOT-BC206014  Ribes menziesii Mary L. Bowerman 1933-6-3 2231 Contra Costa Mount Diablo. Summit Comment
  UC1127450  Ribes menziesii R. W. Lundh 1932-9-22 166 Contra Costa Mount Diablo Mt. Diablo Quadrangle Comment
  SEINET5339680  Ribes menziesii var. leptosmum P. Del Monte 1976-3-28 s.n. Contra Costa Morgan territory road, 1 mile from junction with Marsh creek road 122 Comment
  JEPS111953  Ricinus communis D. G. Kelch 2004-7-9 04 .316 Contra Costa Rodeo Shore 2 Comment
  JEPS111954  Ricinus communis D. G. Kelch 2004-7-9 04 .316 Contra Costa Rodeo Shore 2 Comment
  CAS-BOT-BC362961  Rigiopappus leptocladus Mary L. Bowerman 1933-5-10 2061 Contra Costa Mount Diablo. Ridge at east end of, and south of, Meridian Flat 822 Comment
  UC691487  Rigiopappus leptocladus Mary L. Bowerman 1935-4-17 2835 Contra Costa 2 mi from North Gate (North Road, ridge w of chaparral); Mount Diablo 286 Comment
  UC697146  Rigiopappus leptocladus Mary L. Bowerman 1931-4-25 759 Contra Costa opposite Oak Knoll Picnic Grounds; Mount Diablo, Mountain House Canyon 822 Comment
  UC697163  Rigiopappus leptocladus Mary L. Bowerman 1933-5-8 2016 Contra Costa n side near crest Fossil Ridge; Mount Diablo, n side near crest Fossil Ridge Comment
  CAS-BOT-BC362964  Rigiopappus leptocladus Brandegee No date on label s.n. Contra Costa Antioch Comment
  UC1818998  Robinia pseudoacacia Barbara Ertter, Tom Delendick 1996-5-2 14616 Contra Costa Mount Diablo State Park, Mitchell Canyon parking area, downstream. 182 Comment
  UC1050661  Rondeletia amoena N. Floy Bracelin 1941-4-17 1179 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California 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
  CAS-BOT-BC147408  Rosa californica L. R. Abrams 1916-6-30 5710 Contra Costa Mt. Diablo Comment
  JEPS112081  Rosa californica D. G. Kelch 2003-8-13 03 .123 Contra Costa Vaca Canyon 165 Comment
  JEPS78620  Rosa californica Walter Knight, L. R. Heckard, and Bert Johnson 1978-9-28 3286 Contra Costa Sandy Knoll Browns Island Comment
  UC1584666  Rosa californica Jerry Powell 1990-8-29 1593 Contra Costa on riverine floodplain Antioch National Wildlife Reguge Comment
  UCD113415  Rosa californica John Thomas Howell; Gordon H. True 1972-6-29 48930 Contra Costa Byron Hot Springs Road, SE of Byron. Comment
  CAS-BOT-BC147411  Rosa californica Mary L. Bowerman 1931-5-13 841 Contra Costa Pine Canyon one mile above the Sulphur Spring Comment
  UC2028227  Rosa spithamea Barbara Ertter 1998-12-6 16470 Contra Costa Rock City area on southwest side Mount Diablo. Comment
  CAS-BOT-BC147207  Rubus parviflorus Mary L. Bowerman 1933-5-19 2140 Contra Costa Below Morgan Sulphur Spring 335 Comment
  JEPS99977  Rubus ursinus G. Smick 2003-6-6 GAS 212 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1618384  Rumex conglomeratus Barbara Ertter, Diane Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10698 Contra Costa opposite of Pittsburg Marina (in center of w end of Browns Island n of Pittsburg near confluence of Sacramento and San Joaquin Rivers); Browns Island Comment
  CAS-BOT-BC421624  Rumex crispus W. Knight; I. Knight 1977-5-22 s.n. Contra Costa Antioch Dunes. Comment
  JEPS112030  Rumex obtusifolius Dean G. Kelch and Andrew G. Murdock 2005-4-24 DGK 05 .177 Contra Costa Franklin Canyon, Contra Costa County, CA. Collier Hill. West Carbon. Comment
  JEPS41050  Rumex pulcher Rimo Bacigalupi, and L. R. Heckard 1965-5-11 9075 Contra Costa sw of Richmond (w side of Brooks Island); San Francisco Bay, Brooks Island 6 Comment
  JEPS99967  Rumex pulcher G. Smick 2003-5-30 GAS 205 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC433753  Rumex pulcher Mary L. Bowerman 1938-5-28 3644 Contra Costa Mount Diablo. Maple Spring Comment
  RSA762304  Rumex transitorius William J. Ferlatte, L. M. Moe 1970-4-27 1216 Contra Costa San Francisco Bay, Red Rock Island. Comment
  POM196438  Rupertia physodes Victor Duran 1383 Contra Costa Oakland Hills 305 Comment
  JEPS120280  Rytidosperma racemosum Barbara Ertter with David Gowen 2012-6-9 21017 Contra Costa lower Vollmer Peak Trail paralleling South Drive, southeastern Tilden Park in Berkeley Hills Comment
  CHSC116611  Sagina apetala Lowell Ahart; Josephine Guardino 2016-4-19 20774 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  UC2028200  Sagina apetala Barbara Ertter 1998-5-3 16052 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. Comment
  UC2029092  Salicornia depressa Barbara Ertter 1990-9-30 9656 Contra Costa Point Pinole Regional Shoreline on SW corner of park; edge of San Pablo Bay. Comment
  RSA0029774  Salicornia maritima Barbara Ertter 1990-9-30 9656 Contra Costa Point Pinole Regional Shoreline, on SW corner of park; edge of San Pablo Bay. Comment
  CAS-BOT-BC129912  Salix bonplandiana Ira L. Wiggins 1930-4-18 4601 Contra Costa Levee banks, Jersey Island. Comment
  CAS-BOT-BC129918  Salix bonplandiana Mary L. Bowerman 1933-4-15 1854 Contra Costa Mount Diablo - canyon south of Arroyo del Cerro Comment
  CAS-BOT-BC107875  Salix gooddingii Ira L. Wiggins 1930-4-18 4591 Contra Costa Jersey Island Comment
  SJSU6174  Salix laevigata C. O. Dudley 1966-4-4 74 Contra Costa Reliez Valley, Briones Hills, N of Lafayette Comment
  UC691924  Salix laevigata Mary L. Bowerman 1935-6-1 3119 Contra Costa by rd. just below Silver Springs Grapevine Picnic Grounds; Mt. Diablo 853 Comment
  UC692053  Salix laevigata Mary L. Bowerman 1935-10-26 3348 Contra Costa creek bottom at road junction Mt. Diablo 640 Comment
  CDA23063  Salix lasiolepis D. G. Kelch, D. A. Weinstein 2008-4-25 8 .087 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
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Jan 7 2016
  CDA39557  Salix lasiolepis D. G. Kelch 2005-3-11 5 .038 Contra Costa Carquinez Strait Region; Martinez - Franklin Hills. Carquinez Shoreline EBRP. West of Martinez High School. Comment
  JEPS75494  Salix lasiolepis P. F. Yorks 1976-1-31 505 Contra Costa n of Briones Reservoir (ca. 1 km s of Bear Creek Rd. on Hampton Rd.); Hampton Road Natural Reserve 170 Comment
  POM300608  Salix lasiolepis Mary L. Bowerman 1933-9-15 2441 Contra Costa Hunt Spring (S face Meridian Peak). Mt Diablo. 762 Comment
  UC692065  Salix lasiolepis Mary L. Bowerman 1935-6-21 3142 Contra Costa Arroyo del Cerro Mount Diablo (e fork) 259 Comment
  CAS-BOT-BC129552  Salix lasiolepis var. lasiolepis Alice Eastwood 1914-2-24 3730 Contra Costa Antioch Comment
  CAS-BOT-BC129558  Salix lasiolepis var. lasiolepis Alice Eastwood 1915-6-21 4725 Contra Costa San Leandro Comment
  CAS-BOT-BC129562  Salix lasiolepis var. lasiolepis Alice Eastwood 1914-2-24 3728 Contra Costa Antioch Comment
  RSA0029773  Salsola soda Barbara Ertter 1990-9-30 9659 Contra Costa Point Pinole Regional Shoreline on San Pablo Bay, north Richmond, on N edge of park. Comment
  JEPS62663  Salvia columbariae Lauramay Tinsley 1927-4-19 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
  JEPS112471  Salvia leucophylla D. G. Kelch 2005-5-1 05 .186 Contra Costa Crockett - Edwards Canyon. Below road near junction of Cummings Skyway and Crockett Blvd. 150 Comment
  RSA15471  Salvia mellifera Alice Eastwood, J. T. Howell 1936-4-19 s.n. Contra Costa Nortonville. Comment
  UC1124825  Salvia mellifera R. C. Wilson 1935-2-26 106 Contra Costa Mt. Diablo; Mt. Diablo Quad. 426 Comment
  UC691477  Salvia mellifera Mary L. Bowerman 1932-2-28 1096 Contra Costa n of junction of Curry Canyon and trail to Cave Point; Mount Diablo 533 Comment
  UC691515  Salvia mellifera Mary L. Bowerman 1932-3-6 1104 Contra Costa mouth of Sycamore Canyon; Mount Diablo Comment
  UC75018  Salvia mellifera unknown 1903-4-28 2945 Contra Costa Mitchell Canyon; Mt. Diablo Comment
  UC883961  Salvia mellifera Lewis S. Rose 1941-3-22 41057 Contra Costa w slope Mt. Diablo 609 Comment
  JEPS12727  Sambucus mexicana W. L. Jepson 1908-8-16 3086 Contra Costa Walnut Creek Comment
  JEPS75504  Sambucus mexicana P. F. Yorks 1974-5-10 153 Contra Costa on Hampton Rd. ca 1.7 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  UC139299  Sambucus mexicana Katharine Brandegee 1907-7-4 Contra Costa marshes near Martinez Comment
  CAS-BOT-BC238633  Sambucus nigra subsp. caerulea Mary L. Bowerman 1930-8-31 452 a Contra Costa Mount Diablo. Sloan Road, Curry Canyon (east of the Sloan Place) Comment
  CAS-BOT-BC223246  Sanicula bipinnata Brandegee No date on label s.n. Contra Costa Antioch Comment
  OBI70557  Sanicula bipinnata D. G. Kelch 2007-3-24 7 .088 Contra Costa Ozol; between Port Costa and Martinez, near old brick quarry Comment
  UCR66591  Sanicula bipinnata L. S. Rose 1934-3-21 34063 Contra Costa 3-6 mi east of Clayton Comment
  UCD127997  Sanicula bipinnata P. B. Kennedy 1927-4-10 s.n. Contra Costa Mount Diablo. Comment
  UC1022486  Sanicula crassicaulis C. Ritchie Bell 1953-4-1 3 X504 Contra Costa Mount Diablo, at Canyon Nook Campsite Mount Diablo; , Canyon Nook Campsite Comment
  UC1084406  Sanicula crassicaulis G. Thomas Robbins 1937-4-17 117 Contra Costa near Point Richmond Comment
  PASA1824  Sanicula menziesii Annetta Carter 1929-3-31 Contra Costa Near Clayton. Hills north of Mt. Diablo Comment
  RSA471491  Sanicula tuberosa Brandegee 1884-05 s.n. Contra Costa Antioch Comment
  UC2028179  Sanicula tuberosa Barbara Ertter 1998-5-3 16039 Contra Costa SW fork of Pine Creek between Pine Ridge and Wall Point Ridge, southwest base of Mount Diablo. Comment
  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
  UC691461  Satureja douglasii Mary L. Bowerman 1931-5-23 892 Contra Costa n-facing bank in shaded bottom Alamo Canyon; Mount Diablo 487 Comment
  UC692474  Saxifraga californica Mary L. Bowerman 1931-3-7 554 Contra Costa Mount Diablo, South road below junction Mount Diablo Comment
  SEINET12220596  Saxifraga californica H. M. Hall 1901-1 1633 Contra Costa region of San Francisco Bay Comment
  UC21365  Scandix pecten-veneris Jos. Burtt Davy 1901-4-21 6928 Contra Costa Wildcat Canyon Comment
  UC1057454  Scandix pecten-veneris G. Thomas Robbins 1937-4-25 138 Contra Costa e of La Vista Comment
  UC2027847  Schinus molle Barbara Ertter, Mary Bowerman 1996-11-1 15401 Contra Costa North base of Mount Diablo, near Donner Canyon trailhead at end of Regency Drive. Comment
  CAS-BOT-BC111378  Schoenoplectus acutus var. occidentalis Ira L. Wiggins 1930-4-18 s.n Contra Costa Jersey Island Comment
  CAS-BOT-BC111461  Schoenoplectus californicus Ira L. Wiggins 1930-11-18 4592 Contra Costa Levees, Jersey Island. Comment
  CAS-BOT-BC111464  Schoenoplectus californicus Walter Knight; Irja Knight 1977-6-18 s.n. Contra Costa On shore of San Joaquin River, Antioch sand dunes, Little Corral site. Comment
  JEPS111885  Scirpus acutus D. G. Kelch 2003-8-13 03 .106 Contra Costa Martinez Marsh 0 Comment
  CDA39113  Scirpus americanus A. G. Murdock 2004-6-4 323 Contra Costa Carquinez Strait Region; Pecheco Marsh. Comment
  JEPS111880  Scirpus koilolepis A. G. Murdock 2004-4-30 252 Contra Costa McEwen Road West side of road 130 Comment
  CDA39151  Scirpus maritimus A. G. Murdock 2004-5-28 300 Contra Costa Carquinez Strait; Luzon. Comment
  JEPS111883  Scirpus maritimus A. G. Murdock 2004-6-4 326 Contra Costa Pacheco Marsh near Waterfront Road 1 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
  JEPS116725  Scribneria bolanderi David Gowen 2006-4-22 545 Contra Costa Los Vaqueros Watershed. Chaparral area (Mallory Ridge?) just southeast of Morgan Territory Reg. Preserve. Comment
  UC579849  Scrophularia californica Annetta Carter 1936-4-19 1112 Contra Costa e side of island Red Rock; San Francisco Bay Comment
  UC2070589  Scrophularia californica Barbara Ertter 2003-3-28 18124 Contra Costa Round Valley Regional Preserve. Round Valley Creek at north end of Round Valley. Comment
  JEPS95254  Scutellaria californica Steve Edwards 1991-7-15 Contra Costa Siesta Valley, E side, N of Hwy. 24 Comment
  UC1606369  Scutellaria tuberosa Barbara Ertter, Brad Olson 1992-4-13 10952 Contra Costa 1 mi from Curry Point (Mount Diablo State Park, Knobcone Point Road); Mount Diablo State Park, Knobcone Point Road 487 Comment
  UC1713668  Scutellaria tuberosa unknown 1027 Contra Costa Walnut Creek Comment
  UC25837  Scutellaria tuberosa unknown 1037 Contra Costa Walnut Creek Comment
  UC691407  Scutellaria tuberosa Mary L. Bowerman 1931-4-25 766 Contra Costa Mount Diablo, Meridean Peak, between summit and junction of south and west roads Mount Diablo; , Meridean Peak Comment
  UC2029001  Scutellaria tuberosa Barbara Ertter 2000-3-30 16920 Contra Costa North side of Mount Diablo, in chaparral near base of Back Canyon Trail. Comment
  UC691406  Scutellaria tuberosa Mary L. Bowerman 1931-4-25 771 Contra Costa summit of Mount Diablo (at the junction of the one-way roads) 1143 Comment
  CAS-BOT-BC417826  Sedella pentandra John Thomas Howell 1941-4-6 16182 Contra Costa Near Deer Flat, Mt. Diablo Comment
  CAS-BOT-BC59075  Sedum spathulifolium Mrs. C. E. Sutcliffe 1920-5-30 s.n. Contra Costa Mt. Diablo. Comment
  UC195562  Senecio aphanactis E. L. Greene 1888-3-25 Contra Costa Byron Comment
  CAS-BOT-BC363288  Senecio aronicoides L. R. Abrams 1921-5-25 8033 Contra Costa Summit, Mt. Diablo Comment
  UC691356  Senecio aronicoides Mary L. Bowerman 1933-5-22 2166 Contra Costa Mount Diablo , Inner Black Hills (near crest, Inner Black Hills) Comment
  CAS-BOT-BC327442  Senecio flaccidus var. douglasii Peter Rubtzoff 1951-10-7 824 Contra Costa Along lower San Joaquin River east of Antioch Comment
  JEPS79322  Senecio flaccidus var. douglasii Edward Lee with Annetta Carter 1935-8-17 1634 Contra Costa Antioch Comment
  UC1948955  Senecio glomeratus William J. Ferlatte, L. Maynard Moe 1970-4-27 1266 Contra Costa San Francisco Bay: Red Rock Island Comment
  JEPS37189  Senecio hydrophilus W. L. Jepson 1923-9-13 10210 Contra Costa n of Cerrito Creek; Berkeley Hills Comment
  CDA18812  Senecio mikanioides R. M. Case 1999-12-2 PDR 1219291 Contra Costa Along Wildcat Canyon Rd., 1.9 mi NW of intersection of Wildcat Canyon Rd. and Dam Rd., vicinity of Orinda. 0 Comment
  CDA7666  Senecio sylvaticus D. G. Kelch, A. G. Murdock 2005-5-13 5 .274 Contra Costa Carquinez Strait Region; Martinez - West: Ozol Rock and Scenic Drive. Comment
  UC2032900  Senecio vulgaris Doran, Andrew Scott 2012-3-20 709 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  SEINET3876340 Image available Sequoia sempervirens Dusty Mengshol 1963-3-1 13 Contra Costa 923 Mtn. View Drive, Lafayette.; 0 46 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
  UC1819035  Sherardia arvensis Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14243 Contra Costa South side Mount Diablo, Sloan Road between Curry Point and Curry Canyon, roadside in partial shade of oak forest on north-facing slope. 487 Comment
  RSA29235  Sherardia arvensis Joseph A. Ewan 1934-3-10 8630 Contra Costa 1 mile below Orinda Road. Wildcat Canyon. Comment
  POM61913  Sidalcea diploscypha A. D. E. Elmer 1903-05 4316 Contra Costa Walnut Creek. Comment
  POM300647  Sidalcea malviflora subsp. malviflora Mary L. Bowerman 1933-4-22 1880 Contra Costa Shell Ridge where the highway crosses; Meadow (opposite Heather Farm), near the sulphur spring. Comment
  CAS-BOT-BC384441  Silene antirrhina Kellogg No date on label s.n. Contra Costa Mt Diablo Comment
  UC692651  Silene californica Mary L. Bowerman 1935-6-15 3138 Contra Costa crest of Eagle Point ridge at edge of chaparral and on margin of chaparral on w face..Arctostaphylos..Quercus burned in 1931 Mount Diablo, Eagle Point Ridge (are bordered by band Eriodictyon..) 792 Comment
  JEPS111785  Silene gallica D. G. Kelch 2004-4-30 04 .153 Contra Costa Mt. Wanda - Martinez 115 Comment
Read comments
Oct 13 2009
  JEPS73598  Silene gallica L. R. Heckard 1971-4-22 2494 Contra Costa e. Pinole (along R.R. grade near Hwy. 80 crossing) Comment
  SEINET10760843  Silybum marianum Bonnie C. Templeton 1962-6-24 Templeton s.n. Contra Costa on the road to Mt. Diablo Comment
  JEPS111851  Sinapis arvensis A. G. Murdock 2004-2-12 207 Contra Costa Franklin Canyon east of McHarry Ranch Road 100 Comment
  JEPS68973  Sinapis arvensis Edward Lee 1972-3-29 1307 Contra Costa 1.6 mi. e. Clayton (n. of Mt. Diablo) Comment
  CAS-BOT-BC74938  Sinapis arvensis R. E. Frenkel 1964-2-3 345 Contra Costa On Tassajara Road, 2.1 mile east of Danville. 129 Comment
  SEINET12764843  Sinapis arvensis Barbara Ertter 1998-4-4 15959 Contra Costa Northwest of Mount Diablo, west base of northwestern-most ridge, around old orchard.; 0 Comment
  UC2028548  Sinapis arvensis Barbara Ertter 1998-4-4 15959 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, west base of northwestern-most ridge. Comment
  CDA3848  Sisymbrium orientale J. Simmen 1973-3-2 Contra Costa Pittsburgh. 0 Comment
  SEINET8887769  Sisyrinchium bellum C. M. Fryer 1948-4-11 10 Contra Costa Mt. Diablo Comment
  CDA39388  Smilacina stellata A. G. Murdock 2004-4-3 246 Contra Costa Vaca Canyon. Comment
  UC2012998  Solanum nigrum Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14924 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  CAS-BOT-BC156306  Solanum umbelliferum anonymous 1900-3-26 s.n. Contra Costa Oakley. 6 m. E. of Antioch Comment
  SEINET6186048  Solanum umbelliferum H. M. Hall 1901-4-5 s.n. Contra Costa Region of San Francisco Bay, Mt. Diablo 671 Comment
  UC63939  Solanum umbelliferum Earle Mulliken 1903-5-10 51 Contra Costa Berkeley Hills Comment
  UC697139  Soliva sessilis Mary L. Bowerman 1931-4-11 689 Contra Costa Pine Canyon , Pine Canyon (Mount Diablo) 121 Comment
  JEPS100169  Sonchus asper subsp. asper G. Smick 2003-5-8 GAS 182 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC374741  Sonchus oleraceus Walter Knight 1965-3-1 s.n. Contra Costa Antioch dunes Comment
  JEPS107075  Spartina densiflora Barbara Ertter, Rich Rabeler 1994-6-18 12835 Contra Costa Pt. Pinole Regional Shoreline at north end of Richmond; beach on North side Whittell Marsh. Comment
  CDA32680  Spartina foliosa D. G. Kelch 2004-7-9 4 .314 Contra Costa Carquinez Strait Region; Rodeo Shoreline. Comment
  CAS-BOT-BC236643  Spartina patens Rolf Mall 1964-11-19 s.n. Contra Costa Southamton tidal marsh at head of Suisun Bay between Benicia and Vallejo Comment
  CAS-BOT-BC389917  Spergula arvensis R. E. Frenkel 1964-2-22 361 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  CAS-BOT-BC390238  Spergularia macrotheca var. leucantha R. F. Hoover 1967-4-28 10514 Contra Costa Byron Hot Springs Comment
  UC1948956  Spergularia macrotheca var. macrotheca William J. Ferlatte, L. Maynard Moe 1970-4-27 1265 Contra Costa San Francisco Bay: Red Rock Island Comment
  RSA0098749  Spergularia macrotheca var. macrotheca Barbara Ertter 1990-10-14 9661 Contra Costa Point Isabel Regional Shoreline on San Francisco Bay in SW El Cerrito. Comment
  CDA24135  Spergularia marina D. G. Kelch 2006-7-14 6 .328 Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  JEPS111780  Spergularia marina A. G. Murdock 2004-6-4 319 Contra Costa Pacheco Marsh Salt marsh NE of Waterbird 5 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
  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
  JEPS111784  Spergularia villosa D. G. Kelch 2004-4-26 04 .141 Contra Costa Point Pinole 1 Comment
  CDA22505  Stachys ajugoides var. rigida D. G. Kelch, D. A. Weinstein 2008-4-25 8 .077 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
Read comments
Jan 7 2016
  CDA29000  Stachys ajugoides var. rigida D. G. Kelch 2006-5-7 6 .16 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  UC579850  Stachys ajugoides var. rigida Annetta Carter 1936-4-19 1113 Contra Costa Red Rock, e side of island San Francisco Bay Comment
  UC691720  Stachys ajugoides var. rigida Mary L. Bowerman 1932-5-6 1430 Contra Costa Mitchell Canyon, at end of road Mount Diablo 251 Comment
  UC1191915  Stachys albens Malcolm A. Nobs, S. Galen Smith 1949-7-8 943 Contra Costa 4 mi n Kingston (Otto's Black Bass Resort) Comment
  POM300999  Stachys bullata Mary L. Bowerman 1933-5-18 2119 Contra Costa Mount Diablo, Blackberry Spring. Comment
  CDA33902  Stachys pycnantha Swan/Fonseca 2008-9-11 PDR# 1454523 Contra Costa Concord; Pine Creek 0 Comment
  SJSU10595  Stebbinsoseris heterocarpa W. A. Chappell 1963-4-8 Contra Costa Mt Diablo foothills 3 mi NE of Walnut Cr Comment
  UC1070397  Stebbinsoseris heterocarpa C. M. Belshaw 1936-5-8 2069 Contra Costa 2 mi w Mt. Diablo summit; Mt. Diablo Quad. Comment
  CAS-BOT-BC386943  Stellaria media Ira L. Wiggins 1930-4-18 4598 Contra Costa N. end of Jersey Island Comment
  UC1328148  Stellaria nitens Olive Dyer 1937-4-18 290 Contra Costa abandoned road up Madrone Canyon tributary (Wildcat Canyon); Wildcat Canyon Comment
  UC2027739  Stellaria pallida Barbara Ertter 1997-1-5 15444 Contra Costa Lime Ridge Open Space on northwest side of Mount Diablo, section on north side of Ygnacio Valley Road. Comment
  UC2028059  Stellaria pallida Barbara Ertter, Tony Morosco 1998-4-12 16015 Contra Costa Mount Olympia on 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
  UCD136361  Stephanomeria exigua subsp. coronaria L. D. Gottlieb 1969-11-2 6959 Contra Costa east of Antioch. West of Kaiser Gypsum Plant at Minaker and Wilbur Roads. Comment
  UC571570  Stephanomeria virgata subsp. pleurocarpa H. K. Sharsmith 1933-9-24 Contra Costa highway w Walnut Creek Comment
  UC2070660  Stipa lepida Barbara Ertter 2002-5-11 17847 c Contra Costa Southwest base of Mount Diablo, lower end of Summit Trail in Dan Cook Canyon ca. half mile from South Gate Road. Comment
  UC2029191  Stipa pulchra Barbara Ertter with Brad Olson et al. 2000-6-2 17298 Contra Costa North side Brushy Peak Regional Preserve NE of Livermore Comment
  SEINET3149300  Streptanthus glandulosus M. S. Baker 1904-6-24 sn Contra Costa Mt. Diablo, halfway to Summit Comment
  CAS-BOT-BC87100  Streptanthus glandulosus subsp. glandulosus Mary L. Bowerman 1935-5-8 2968 Contra Costa Mount Diablo. West road 2 miles from entrance. 237 Comment
  UC1516892  Streptanthus hispidus W. H. Brewer 1862-5-14 1084 Contra Costa Mt. Diablo summit; Mt. Diablo; Mt. Diablo, Contra Costa Co. Comment
  UC2028454  Stuckenia pectinata Barbara Ertter with Joanne Kerbavaz 2000-8-20 17507 Contra Costa Hidden Pond on south side of Mount Diablo Comment
  JEPS125637  Stuckenia striata Daniel Slakey with CNPS Volunteers 2015-9-12 223 Contra Costa Junction Suisun Bay and New York Slough, between Browns Island and Pittsburg Marina. Comment
  UC2028416  Stuckenia striata Barbara Ertter with Brad Olson, Dianne Lake, Lynne Hosley and A. Youngson 1991-10-20 10866 Contra Costa Dow Wetlands Preserve, just W of Antioch marina 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
  JEPS75654  Stylomecon heterophylla W. L. Jepson 1925-4-26 10683 Contra Costa Black Hills Mt. Diablo; , Black Hills Comment
  CAS-BOT-BC422906  Stylomecon heterophylla W. W. Carruth 1900-5-1 s.n. Contra Costa Moraga Valley Comment
  CAS-BOT-BC422922  Stylomecon heterophylla L. Constance; J. L. Morrison 1938-4-6 2193 Contra Costa NW. base of Mount Diablo, 6 miles SE. of Walnut Creek, Coast Ranges Comment
  RSA446229  Stylomecon heterophylla John Doyen, Glenn Gorelick 1966-4-22 s.n. Contra Costa Russelman Park. Mt. Diablo State Park. Comment
  UC7235  Suaeda moquinii T. J. Storer Sep 1899 Contra Costa Byron Springs Comment
  LA204633  Symphoricarpos albus J. A. Ewan; 1936-5-3 9500 Contra Costa Wildcat Creek Comment
  CAS-BOT-BC269564  Symphoricarpos albus var. laevigatus L. R. Abrams 1916-6-30 5720 Contra Costa Mt. Diablo near lake Comment
  UC1076414  Symphoricarpos albus var. laevigatus Herbert L. Mason 1924-11-23 1158 Contra Costa Cashion Comment
  JEPS111768  Symphoricarpos mollis D. G. Kelch 2004-3-12 04 .33 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road. Contra Costa County, CA 220 Comment
  JEPS13647  Symphoricarpos mollis Mary L. Bowerman 1933-5-21 2159 Contra Costa s from Curry Canyon (Sycamore Canyon, ridge between two main forks); Mount Diablo, Sycamore Canyon 426 Comment
  UC691622  Symphoricarpos mollis Mary L. Bowerman 1933-5-21 2159 Contra Costa ridge between two forks Sulphur Springs Canyon; Mount Diablo 426 Comment
  CAS-BOT-BC97701  Symphyotrichum chilense Walter Knight; Joanne Dean 1978-8-14 3140 Contra Costa Browns Island Comment
  UC1594187  Symphyotrichum subspicatum Jerry Powell 1992-5-20 1646 Contra Costa Richmond Field Station Comment
  UC764060  Taraxia ovata R. F. Hoover 1938-2-21 2755 Contra Costa Point Richmond Comment
  JEPS33734  Taraxia ovata Mrs. E. L. Mossman 1931-3-12 57 Contra Costa Wildcat Canyon Berkeley Hills 213 Comment
  UC21430  Tauschia hartwegii Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  UC566895  Tauschia hartwegii H. L. Mason 1928-4-26 4387 Contra Costa Berkeley-Oakland Hills Comment
  UCD96956  Tetragonia tetragonoides G. Thomas Robbins 1958-7-19 3906 Contra Costa Pt. Orient, San Francisco Bay, about 3/4 mile south of Pt. San Pablo, Potrero San Pablo, Richmond. Comment
  UC1784914  Tetrapteron graciliflorum Barbara Ertter 1992-11-1 11457 Contra Costa Skyline Trail E of Grizzly Peak Boulevard in Berkeley Hills, ca. 1/2 mi S of Tilden Park Miniature Train Station Comment
  UC692141  Thalictrum fendleri var. polycarpum Mary L. Bowerman 1931-4-5 673 Contra Costa by road to Gregory Ranch Mount Diablo Comment
  NY185781  Thelypodium rigidum E. L. Greene 1887-4-17 s.n. Contra Costa Comment
  CAS-BOT-BC88249  Thysanocarpus curvipes Alice Eastwood 1923-5-4 11702 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC88260  Thysanocarpus curvipes Lewis S. Rose 1933-4-17 33096 Contra Costa Antioch. Comment
  CAS-BOT-BC88264  Thysanocarpus curvipes Mary L. Bowerman 1933-4-15 1879 Contra Costa Mount Diablo. Second ridge south of Arroyo del Cerro. Crest of ridge. Comment
  CDA1354  Thysanocarpus curvipes D. G. Kelch 2004-3-13 4 .041 Contra Costa Mt Diablo Region.; Road cut along Marsh Creek Rd about 1.5 miles W of Deer Valley Rd. Comment
  UC614830  Thysanocarpus curvipes Beryl O. Schreiber 1932-3-27 163 Contra Costa near Antioch; near Antioch Comment
  UC691143  Thysanocarpus curvipes Mary L. Bowerman 1933-4-9 1842 Contra Costa w fork Donner Canyon Mount Diablo (by trail, Mount Diablo) Comment
  SEINET3840810  Thysanocarpus curvipes Unknown 2004-3-13 4 .041 Contra Costa Road along Marsh Creek road, about one and a half miles west of Dee}some information missing{ 107 Comment
  UC1543083  Thysanocarpus curvipes Donald G. Nelson 1937-4-24 519 Contra Costa Marsh Creek Road just after making direct turn s from canyon; Marsh Creek Road just after making direct turn s from canyon Comment
  UC11030  Thysanocarpus curvipes subsp. curvipes Brewer 1862-1 Contra Costa Mount Diablo Comment
  UC11038  Thysanocarpus curvipes subsp. curvipes W. H. Brewer 1862-5-12 1083 Contra Costa Mt. Diablo Comment
  RSA0039448  Thysanocarpus curvipes var. curvipes Howard de Forest 1930-4-6 s.n. Contra Costa Unspecified. Comment
  SEINET10904232  Thysanocarpus curvipes var. elegans John T. Middleton 1936-4-18 Middleton 141 Contra Costa Briones valley. Comment
  UC691135  Thysanocarpus laciniatus Mary L. Bowerman 1931-4-18 713 Contra Costa Sycamore Canyon Mount Diablo (Mount Diablo); , Sycamore Canyon 335 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
  JEPS116724  Thysanocarpus radians David Gowen 2006-4-22 546 Contra Costa Los Vaqueros Watershed. Chaparral area (Mallory Ridge?) just southeast of Morgan Territory Reg. Preserve. Comment
  UC1084405  Toxicodendron diversilobum G. Thomas Robbins 1937-4-17 118 Contra Costa near Point Richmond Point Richmond Comment
  CAS-BOT-BC172938  Toxicodendron diversilobum B. Lacoste 1920-10-1 s.n. Contra Costa On hill slope by Lake Aliso Comment
  UCD139856  Toxicoscordion fremontii Laurence S. Jones 1934-4-8 s.n. Contra Costa Mount Diablo. 609 Comment
  JEPS100167  Tragopogon porrifolius G. Smick 2003-5-6 GAS 166 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111695  Tragopogon porrifolius D. G. Kelch 2004-4-11 04 .74 Contra Costa Crockett - Crolona Heights Hillside above Rolf Drive. Lower Crolona heights 15 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
  CDA33823  Trifolium albopurpureum D. G. Kelch 2010-5-15 10 .121 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 Comment
  SD37268  Trifolium albopurpureum McCallum 1933-4-25 3699 Contra Costa Hillside near Tassajana Comment
  JEPS99531  Trifolium albopurpureum var. albopurpureum Mary Bowerman 1978-5-4 Contra Costa Mount Diablo, Jim White Trail from Juniper Camp to Deer Flat before saddle. Comment
  UC2028169  Trifolium albopurpureum var. albopurpureum Barbara Ertter 1998-5-3 16074 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, near Wall Point. Comment
  UCSC008382  Trifolium amplectens Randall Morgan 1996-4-2 2851 Contra Costa North East side of Byron, Highway 17, North of Byron Hot Springs Road Comment
  UC2028117  Trifolium bifidum var. bifidum Barbara Ertter with Richard K. Brummitt 1998-5-6 16092 Contra Costa Lower Donner Canyon on north base of Mount Diablo, Hetherington Trail upstream from Donner Cabin. Comment
  SBBG29986  Trifolium bifidum var. decipiens J. T. Howell 1933-5-14 11264 Contra Costa hills E of St Mary's College Comment
  UC692247  Trifolium bifidum var. decipiens Mary L. Bowerman 1931-4-5 681 Contra Costa s Russelman Park; Mount Diablo 381 Comment
  CDA23626  Trifolium ciliolatum D. G. Kelch 2008-4-12 8 .036 Contra Costa Mt Diablo. Mitchell Canyon. Along road looping north of main Mitchell Canyon Rd. Comment
  CDA28873  Trifolium ciliolatum D. G. Kelch, Jessica Kolman 2009-5-29 9 .312 Contra Costa Carquinez Strait; Pinole Valley Park, near ridgetop. Comment
  SBBG29985  Trifolium ciliolatum J. T. Howell 1933-5-14 11245 Contra Costa hills E of St Mary's College Comment
  UC517489  Trifolium ciliolatum John Thomas Howell 1933-5-14 11245 Contra Costa e St. Mary's College (hills) Comment
  UC692460  Trifolium ciliolatum Mary L. Bowerman 1935-4-28 2926 Contra Costa e Pioneer Camp (ridge at w end of willizenii Flat); Mount Diablo Comment
  UC147172  Trifolium depauperatum var. amplectens J. Burtt Davy Apr 7-8 1895 967 Contra Costa Antioch Comment
  UC16416  Trifolium depauperatum var. amplectens Edw. L. Greene 1889-3-24 Contra Costa Byron Comment
  JEPS2905  Trifolium depauperatum var. depauperatum E. L. Greene April, 1884 Contra Costa Byron Comment
  CDA27934  Trifolium depauperatum var. truncatum D. G. Kelch, A. G. Murdock 2005-5-6 5 .229 Contra Costa Carquinez Strait Region; Franklin Canyon. East of Christie Road. South of Route 4. Comment
  JEPS68976  Trifolium depauperatum var. truncatum Edward Lee 1935-3-29 1310 Contra Costa e Kirker Pass (Donovan Rd, w of Kirker watershed) Comment
  UC631080  Trifolium depauperatum var. truncatum P. B. Kennedy 1928-4-19 10045 Contra Costa Byron Hot Springs Comment
  UC80338  Trifolium depauperatum var. truncatum C. F. Baker 1903-4-27 2863 Contra Costa Byron 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
  UC16545  Trifolium fucatum J. Burtt Davy 1895-4-7 959 Contra Costa Antioch Comment
  UC692239  Trifolium fucatum Mary L. Bowerman 1932-5-6 1421 Contra Costa Mitchell Canyon Mount Diablo Comment
  UC692316  Trifolium fucatum Mary L. Bowerman 1932-3-23 1124 Contra Costa betw Monument and Concord (Oak Grove School junction); Mount Diablo Comment
  UC70198  Trifolium fucatum J. Burtt Davy May 1898 Contra Costa Danville region of Mount Daiblo Comment
  UC924217  Trifolium fucatum H. S. Reed 1940-4-30 356 Contra Costa Marsh Creek northeast slopes of Mount Diablo Comment
  SEINET12147993  Trifolium fucatum Unknown 1878-1 s.n. Contra Costa Near Mt. Diablo 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
  UC692689  Trifolium gracilentum Mary L. Bowerman 1933-5-4 1996 Contra Costa e end Rock City Ridge (=Fossil Ridge) (roadbank); Mount Diablo Comment
  UC70197  Trifolium gracilentum J. Burtt Davy May 1898 Contra Costa Danville Comment
  JEPS65908  Trifolium gracilentum var. gracilentum W. L. Jepson 1923-4-22 9858 Contra Costa Mt. Diablo Comment
  RSA0027887  Trifolium incarnatum Barbara Ertter 2010-5-12 19830 Contra Costa Miller Knox Regional Shoreline at south edge of Point Richmond. Along West Ridge Trail. Comment
  JEPS89577  Trifolium microcephalum Dean W. Taylor 1992-4-16 12395 Contra Costa s. Byron Hot Springs (in swale draining on e. margin <of TRS coordinates>); San Joaquin Valley, Clifton Court Forebay 7 1/2 USGS map 45 Comment
  JEPS100107  Trifolium microdon G. Smick 2003-4-22 GAS 144 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC692248  Trifolium microdon Mary L. Bowerman 1931-4-25 752 Contra Costa 2 mi from west entrance (=North Gate); Mount Diablo Comment
  UC692255  Trifolium microdon Mary L. Bowerman 1933-5-17 2111 Contra Costa due s Olafson's barn (branch of Curry Canyon, on ridge between the two forks of the canyon); Mount Diablo Comment
  RSA90931  Trifolium microdon J. T. Howell 1933-5-14 11244 Contra Costa St. Mary's College. Comment
  UC16753  Trifolium obtusiflorum W. H. Brewer 1862-4-30 1005 Contra Costa Camp 69 Walnut Creek Comment
  UC2029064  Trifolium obtusiflorum Barbara Ertter 2000-7-29 17445 Contra Costa Donner Basin on north side of Mount Diablo, Falls Trail at east fork of Donner Creek (between main fork and Wild Oat Canyon), trickle of surface water Comment
  CDA28015  Trifolium oliganthum D. G. Kelch, A. G. Murdock 2005-4-15 5 .15 Contra Costa Carquinez Strait Region; Rodeo Creek. EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  JEPS100109  Trifolium oliganthum G. Smick 2003-3-25 GAS 85 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA0033854  Trifolium oliganthum Barbara Ertter 2003-3-28 18135 Contra Costa Round Valley Regional Preserve, mid Hardy Canyon along High Creek. 182 Comment
  UC866918  Trifolium oliganthum Lewis S. Rose 1940-4-30 40252 Contra Costa 6 mi e Clayton (Marsh Creek) 60 Comment
  UC555403  Trifolium oliganthum H. L. Mason 1929-3-29 5131 Contra Costa 2 mi above Clayton (Marsh Creek Rd) Comment
  UC1819059  Trifolium variegatum Barbara Ertter, Mary Bowerman et al. 1995-5-7 14047 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, grassy flat, roadside vegetation, clay substrate. Comment
  JEPS4404  Trifolium variegatum var. melananthum W. L. Jepson May 23 1891-May 24 1891 13711 Contra Costa Mt. Diabl Comment
  POM349559  Trifolium willdenovii H. de Forest 1930-4-6 s.n. Contra Costa Near Antioch. Comment
  UCD109847  Trifolium willdenovii W. L. Jepson 1925-4-26 10691 Contra Costa Mt. Diablo. Comment
  UC2070435  Trifolium willdenovii Barbara Ertter with David Gowen, J. Ginochio, M. Park, S. Matson, A. Moore, S. D'Alcamo, J. Greenhouse, K. Kersh and J. Gawthrup 2005-5-8 18563 Contra Costa Long Ridge on west side of Mount Diablo, upper Burma Road between Mothers Trails and Deer Flat Road. Comment
  UC555573  Trifolium willdenovii H. L. Mason 1929-3-29 5132 Contra Costa 2 mi above Clayton (Marsh Creek Rd) Comment
  CDA33819  Trifolium wormskioldii D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .107 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  UC508  Triglochin striata Jos. Burtt Davy 1900-6-7 6676 Contra Costa Martinez Comment
  UC615554  Trillium chloropetalum Beryl O. Schreiber 1932-3-6 47 Contra Costa near San Pablo Dam San Pablo Dam Comment
  UCD139902  Trillium chloropetalum Morris Halperin 1929-4-21 s.n. Contra Costa St. Mary's College Campus. Comment
  CAS-BOT-BC521014  Trillium chloropetalum var. giganteum J. D. Freeman; R. F. Freeman 1967-5-2 570 Contra Costa Redwood grove 2 mi. SW of Moraga and 1 mi. S of Canyon P.O. Comment
  JEPS15190  Triphysaria eriantha subsp. eriantha R. C. Wilson 1935-3-26 144 Contra Costa 2 mi n Walnut Creek; Concord Quad. Comment
  JEPS65192  Triphysaria eriantha subsp. eriantha L. R. Heckard 1971-4-15 2475 Contra Costa Morgan Territory road 5 1/2 mi n of its intersection with Manning road e Mt. Diablo; e of Mt. Diablo Comment
  UC1301191  Triphysaria eriantha subsp. eriantha Helen K. Sharsmith 1963-4-7 5288 Contra Costa e side Kirker Pass road w Antioch (San Francisco Bay Region); , Kirker Pass Road 152 Comment
  UC650592  Triphysaria eriantha subsp. eriantha Ira L. Wiggins 1930-4-17 4571 Contra Costa 1/4 mi s Byron Comment
  CDA41894  Triphysaria versicolor subsp. faucibarbata D. G. Kelch 2005-5-6 5 .228 Contra Costa Carquinez Strait Region; Franklin Canyon. East of Christie Road. South of Route 4. Comment
  SEINET238875 Image available Trisetum canescens Beecher Crampton 1956-5-14 3423 Contra Costa 2 miles west of Martinez on road to Crockett. Comment
  JEPS112496  Triteleia laxa D. G. Kelch 2004-5-9 04 .204 Contra Costa Crockett - Upper Edwards Canyon, Crockett, above Crockett Blvd 160 Comment
  JEPS120268  Triteleia laxa Barbara Ertter with David Gowen 2012-6-9 21020 Contra Costa Seaview Trail on morth side of Vollmer Peak, southeastern Tilden Park in Berkeley Hills Comment
  CAS-BOT-BC526327  Triteleia laxa Barrett Anderson 1987-4-30 3501 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road 125 Comment
  CAS-BOT-BC526331  Triteleia laxa James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  RSA378002  Triteleia laxa D. G. Nichols 1940-3-31 4 Contra Costa 5 miles west Byron on road from Byron to Clayton 146 Comment
  SEINET3889041  Triteleia laxa John Thomas Howell 1931-5-12 6468 Contra Costa Oakland Hills.; 0 Comment
  CAS-BOT-BC67403  Tropidocarpum gracile Alice Eastwood 1914-3-14 3824 a Contra Costa Byron Springs. Comment
  UC64343  Tropidocarpum gracile H. M. Hall 1901-4-5 1742 Contra Costa Pine Canyon Region of San Francisco Bay, Mt. Diablo Comment
  CDA15285  Typha angustifolia G. F. Hrusa, D. Crowe, R. York 1998-7-17 14723 Contra Costa Sacramento Delta; Small colony and a few scattered inds. 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
  UC692072  Typha latifolia Mary L. Bowerman 1938-6-14 3677 Contra Costa Mineral Spring Mount Diablo (along streamlet); , Mineral Spring 350 Comment
  JEPS111916  Ulmus minor Dean G. Kelch and Andrew G. Murdock 2004-4-26 DGK 04 .131 Contra Costa Point Pinole. Comment
  UC2070593  Ulmus pumila Barbara Ertter 2001-3-18 Contra Costa Shell Ridge Open Space SW of Walnut Creek, persisting at Indian Creek School. Comment
  JEPS112486  Umbellularia californica D. G. Kelch 2003-3-21 03 .39 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  JEPS68942  Umbellularia californica Edward Lee 1935-2-10 1270 Contra Costa Wildcat Creek; Berkeley, Berkeley Hills Comment
  UC1073383  Umbellularia californica George B. Rossbach 1955-2-20 277 Contra Costa ne of Oakland Comment
  UC1126325  Umbellularia californica H. S. Yates 1936-3-14 5362 Contra Costa Marsh Creek 381 Comment
  CAS-BOT-BC91091  Umbellularia californica H. E. McMinn 1925-1-1 s.n. Contra Costa Head of San Leandro Creek. Comment
  CAS-BOT-BC381829  Uropappus lindleyi H. M. Hall 1901-4-5 1731 Contra Costa Region of San Francisco Bay. Mt. Diablo 457 Comment
  JEPS36207  Uropappus lindleyi W. L. Jepson 1922-5-23 9669 Contra Costa n slope Mt. Diablo; n slope Mt. Diablo Comment
  UC691783  Uropappus lindleyi Mary L. Bowerman 1957-5-2 1957 Contra Costa Pioneer Camp Mount Diablo 762 Comment
  JEPS35632  Uropappus lindleyi W. L. Jepson 1896-5-31 Contra Costa Wild Cat Canyon Comment
  UC1538811  Urospermum picroides Mark Blumler 1986-6-22 Contra Costa 1 mi e Grizzly Peak Blvd. (overlooking freeway) Comment
  CAS-BOT-BC404064  Urtica dioica subsp. holosericea Mary L. Bowerman 1931-8-29 1032 Contra Costa Mount Diablo. Sheep Camp Spring, by west road Comment
  UC2028520  Urtica urens Barbara Ertter 1997-1-5 15438 Contra Costa Lime Ridge Open Space on northwest side of Mount Diablo, section on north side of Ygnacio Valley Road. 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
  POM312406  Verbena hastata Malcolm A. Nobs, S. Galen Smith 1949-7-8 942 Contra Costa Otto's Black Bass Resort, 4 miles north of Kingston. Comment
  UC176060  Verbena lasiostachys var. scabrida R. P. Brandt 1914-7-9 Contra Costa Berkeley Hills. Comment
  JEPS18890  Veronica peregrina subsp. xalapensis Rimo Bacigalupi with G. Thomas Robbins 1956-3-26 5524 Contra Costa 1.2 mi n of junction with Marsh Creek Road ( just n of Briones Valley, along the Deer Valley Road, in territory just s of Antioch,); Deer Valley Road 76 Comment
  UC691653  Veronica peregrina subsp. xalapensis Mary L. Bowerman 1931-4-4 664 Contra Costa w of Turtle Rock (Mount Diablo); Mount Diablo Comment
  CAS-BOT-BC267240  Viburnum ellipticum Mary L. Bowerman; Walter & Irja Knight 1967-11-6 2301 Contra Costa Near Curry Park in Morgan Territory, Sulphur Spring Canyon, half way between canyon source and active spring, 15 yards above creek 365 Comment
  UC1789196  Viburnum rigidum Barbara Ertter 2001-10-29 17810 Contra Costa Tilden Regional Park, Selby Trail and Wildcat Gorge upstream from Lake Anza, understory of mixed forest. Occasional lax shrub to 2--3 m tall. Comment
  UC1005836  Viburnum suspensum N. Floy Bracelin 1945-5-27 2852 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1050717  Viburnum trilobum N. Floy Bracelin 1941-4-13 1134 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1130189  Vicia americana var. americana C. M. Belshaw 1936-5-12 2109 Contra Costa 3.7 mi ene Tassajero; Mt. Diablo Quad. 670 Comment
  JEPS77006  Vicia gigantea Robert M. Lloyd 1963-3-17 2135 Contra Costa 0.5 mi e intersection of Grizzly Peak Road and Skyline Drive (on Skyline Drive (across from 7090 Skyline), Huckleberry trail); Huckleberry trail Comment
  JEPS105699  Vicia hassei David Gowen 2004-3-28 20 Contra Costa Black Diamond Mines Regional Preserve.River View Loop trail southeast of the Arata Overlook trail junction. Comment
  OBI70556  Vicia sativa D. G. Kelch 2007-3-24 7 .089 Contra Costa Ozol; between Port Costa and Martinez near old brick quarry 52 Comment
  UC1795635  Vicia sativa subsp. nigra Barbara Ertter, Chris Thayer 1995-4-25 14001 Contra Costa Southeast side of Mt. Diablo northeast of Danville, roadside at Curry Point. Comment
  JEPS107126  Vicia villosa subsp. varia Barbara Ertter, Mary Bowerman 1995-6-11 14250 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, at west base Mt. Diablo; near Indian Valley School entrance (planted Clarkia also present). 91 Comment
  JEPS127049  Vicia villosa subsp. varia Lowell Ahart, Josephine Guardino 2016-4-19 20764 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  JEPS99507  Vicia villosa subsp. varia Mary Bowerman 1978-5-4 Contra Costa Mount Diablo, Nort Gate Rd. 3/4 above Arroyo del Cerro. Also lower down. Comment
  UC1795794  Vicia villosa subsp. varia Barbara Ertter, Mary Bowerman 1995-6-11 14250 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, at west base Mt. Diablo.; annual grassland near Indian Valley School entrance, clay soil (planted Clarkia also present). 91 Comment
  UCD108659  Vicia villosa subsp. varia Helen K. Sharsmith 1962-4-18 4946 Contra Costa Crockett-Martinez road above Carquinez Straits. 60 Comment
  UC2029037  Vinca major Barbara Ertter 2000-3-30 16902 Contra Costa North base of Mount Diablo, lower Mitchell Canyon ca 1 miles from trailhead. Comment
  UC1300827  Viola glabella Helen K. Sharsmith 1962-5-19 5053 Contra Costa foot of Moraga Ridge (near Canyon); San Francisco Bay Region, Moraga Ridge 152 Comment
  UC2027997  Viola purpurea subsp. quercetorum Barbara Ertter with Tony Morosco 1998-4-12 16022 Contra Costa Mount Olympia on north side of Mount Diablo, midway down Olympia Road from summit. Comment
  CAS-BOT-BC203037  Vitis californica H. E. McMinn 1922-6-2 86 Contra Costa On north slope of Mt. Diablo Comment
  SEINET10691474  Vitis californica Bonnie C. Templeton 1962-6-10 Templeton s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC193589  Vulpia bromoides Edward Lee 1936-4-19 1979 A Contra Costa Red Rock, San Francisco Bay Comment
  CAS-BOT-BC198757  Vulpia bromoides Mary L. Bowerman 1933-4-15 1872 Contra Costa Canyon south of Arroyo del Cerro, rocky knoll 250 feet below spring - Mount Diablo Comment
  UC766882  Vulpia microstachys var. ciliata R. F. Hoover 1935-4-10 316 Contra Costa Antioch Comment