Search Results — 2000 specimen records retrieved (1351 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UC1050374  Acacia dealbata N. Floy Bracelin 1942-7-4 2174 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1050368  Acacia verticillata N. Floy Bracelin 1942-7-4 2172 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UCD104651  Acacia verticillata Rudolf Schmid 1997-5-21 1997 -13 Contra Costa Hillside Natural Area, El Cerrito; nw. of King Ct. entrance. 575 Comment
  UC1614105  Acaena pinnatifida var. californica Charles M. Belshaw 1935-6-24 788 Contra Costa Bald Peak, ca 1/2 mile east of Grizzly Peak (Bald Peak); Bald Peak Comment
  RSA113974  Acer macrophyllum Peter H. Raven 1957-4-11 10621 Contra Costa Curry Canyon 3.4 miles south of Recreation Ground Comment
  SEINET4172014 Image available Acer macrophyllum Robert A. Norris, John L. Inase 1981-1 4146 Contra Costa Abrigo Valley Trail, NW part of Briones Regional Park (ca. 3 mi. NNW Lafayette) 274 Comment
  UC18112  Acer macrophyllum H. P. Chandler 584 Contra Costa Briones Valley region of Mount Diablo, Briones Valley Comment
  UC692719  Acer macrophyllum Mary L. Bowerman 1931-3-21 605 Contra Costa Sycamore Canyon Mount Diablo, Sycamore Canyon Comment
  POM247253  Acer negundo subsp. californicum Annetta Carter 1937-4-4 1229 Contra Costa Moraga Valley, 2 1/2 miles north of Moraga 183 Comment
  JEPS42725  Acer negundo var. californicum W. L. Jepson 1908-8-16 3084 Contra Costa Walnut Creek 22 Comment
  SEINET3195243 Image available Acer negundo var. californicum Annetta Carter 1937-3-28 1227 Contra Costa Creek bank, Moraga Valley, 2.5 miles north of Moraga 180 Comment
  CAS-BOT-BC21714  Achillea millefolium Walter Knight; Joanne Dean 1978-8-14 3148 Contra Costa Browns Island Comment
  CHSC23337  Achillea millefolium Willis Ball 1975-2-23 447 Contra Costa Contra Loma Regional Park. In area #2. On n facing slope ca. 100 yds nw of boat ramp on w side of lake. 36 Comment
  JEPS111752  Achyrachaena mollis D. G. Kelch 2005-4-15 05 .153 Contra Costa Rodeo Creek EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump) 220 Comment
  JEPS36722  Achyrachaena mollis W. L. Jepson 1923-4-22 9861 Contra Costa Mt. Diablo Comment
  UC1613477  Achyrachaena mollis Charles M. Belshaw 1935-5-24 178 a Contra Costa 0.5 mi. e. Grizzly Peak (Bald Peak); Bald Peak 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
  UC29290  Achyrachaena mollis J. Burtt Davy May 13 1893-Jan 1 1900 766 Contra Costa Comment
  UCD128392  Achyrachaena mollis Morris Halperin 1929-4-21 s.n. Contra Costa Franklin Canyon. Comment
  UCD32385  Achyrachaena mollis Beecher Crampton 1950-4-22 529 Contra Costa above Sand Creek, on hills to north above Lone Tree Valley 106 Comment
  SBBG40322  Acmispon americanus W. J. Dress 1951-7-3 3470 Contra Costa a few mi S of Moraga 152 Comment
  CHSC116627  Acmispon americanus var. americanus Lowell Ahart; Josephine Guardino 2016-4-19 20781 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. On dry bare soil, below the high water line of Los Vaqueruss Reservoir, 1.4 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  CDA19145  Acroptilon repens R. M. Case 2001-7-1 PDR P 088757 Contra Costa San Francisco Bay Region; In East Bay Municipal Utility District Water Department on Hookston Rd 1, Pleasant Hill. 0 Comment
  CAS-BOT-BC133154  Adenostoma fasciculatum Mrs. Brandegee s.n. Contra Costa Antioch Comment
  SEINET11907860  Adenostoma fasciculatum L. J. Musselman 1970-1 3774 Contra Costa W slope of Mt. Diablo, near summit ridge 1067 Comment
  JEPS100160  Adiantum jordanii A. Langston 2003-6-19 AL 52 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS112046  Adiantum jordanii D. G. Kelch 2005-5-1 05 .194 Contra Costa Crockett - Edwards Canyon 150 Comment
  RSA585064  Adiantum jordanii C. Newberry 1994-4-30 7255 Contra Costa Mount Diablo State Park, trail from Mitchell Canyon parking to Donner Creek 900 Comment
  CAS-BOT-BC206881  Aesculus californica Barrett Anderson 1987-4-30 3494 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD. 125 Comment
  CAS-BOT-BC29520  Agoseris apargioides R. E. Frenkel 1964-6-20 595 Contra Costa On Giant Road at its junction with Atlas Road, Richmond 16 Comment
  UC1795709  Agoseris apargioides var. apargioides Barbara Ertter, Lincoln Constance 1995-6-16 14259 Contra Costa Alameda/Contra Costa county line. Skyline serpentine grassland in Redwood Regional Park (east of old HQ on Skyline Rd.). Comment
  CAS-BOT-BC15428  Agoseris grandiflora var. grandiflora Alice Eastwood 1923-5-4 11736 Contra Costa Mt. Diablo Comment
  JEPS36319  Agoseris grandiflora var. grandiflora W. L. Jepson 1943-6-8 20846 Contra Costa midway of ridge Moraga Ridge Comment
  CAS-BOT-BC22970  Agoseris heterophylla John Thomas Howell 1933-5-14 11260 Contra Costa Hills east of St. Mary's College Comment
  UC691794  Agoseris heterophylla var. heterophylla Mary L. Bowerman 1933-5-18 2127 Contra Costa grassy slope Blackberry Spring; Mount Diablo Comment
  SBBG115406  Agropogon littoralis B. Crampton 1959-9-3 5454 Contra Costa ca. 2 mi N of Orinda, Bear Crk, East Bay Municipal Utilities District Project Comment
  POM300723  Agrostis Mary L. Bowerman 1933-8-26 2413 Contra Costa Mount Diablo. At and below Lower Canyon Spring. 976 Comment
  RSA721735  Agrostis avenacea Barbara Ertter 1994-5-7 12748 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay. Comment
  CDA28132  Agrostis exarata D. G. Kelch 2003-8-13 3 .113 Contra Costa Carquinez Strait; Salt Marsh E of Marina. Martinez. Comment
  JEPS100030  Agrostis exarata A. Langston 2003-6-6 AL 35 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2029201  Agrostis exarata Barbara Ertter 1999-7-17 16763 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, Rifle Range Road Comment
  UC692381  Agrostis exarata Mary L. Bowerman 1933-8-26 2413 Contra Costa at and below Lower Canyon Spring; Mount Diablo 975 Comment
  UC692410  Agrostis exarata Mary L. Bowerman 1933-9-9 2434 Contra Costa edge of spring Mount Diablo, Frog Pond Comment
  CAS-BOT-BC127339  Agrostis exarata Mary L. Bowerman 1932-11-12 1647 Contra Costa Mount Diablo. Canyon Spring. 1005 Comment
  CDA29913  Agrostis pallens D. G. Kelch, Suzanne Latham, Matt Beyers 2009-6-3 9 .335 Contra Costa East Bay.; El Sobrante Ridge at end of Silver Belt Dr. on Miocene chert outcrop. Comment
  CDA962  Agrostis pallens D. G. Kelch 2005-6-14 5 .33 Contra Costa East Bay; San Pablo. North Alvarado Park, south of San Pablo Dam Rd. Comment
  UC2028392  Agrostis pallens Barbara Ertter with Tony Morosco 1998-9-18 16433 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, above sand quarry [subsequently developed] on south side of Ygnacio Valley Road, SE slope below water tank Comment
  UC50548  Agrostis viridis Jos. Burtt Davy 1897-9-4 4082 Contra Costa Stege Comment
  NY216689  Allenrolfea occidentalis L. S. Rose 1955-9-12 55173 Contra Costa 2 mi. E of Byron. 15.2 Comment
  RSA367058  Allium amplectens Mark Morris 1929-03 14928 Contra Costa Mt. Diablo. Comment
  UC692026  Allium falcifolium Mary L. Bowerman 1932-4-16 1347 Contra Costa at summit, Eagle Point Mount Diablo, Eagle Point Comment
  CAS-BOT-BC469110  Allium falcifolium Paul F. Covel 1936-5-17 126 Contra Costa Summit Mt. Diablo Comment
  UC185478  Allium peninsulare var. peninsulare Katharine Brandegee May 1907 Contra Costa Antioch Comment
  UC3107  Allium serra Brewer 1022 Contra Costa Walnut Creek Comment
  UC64077  Allium serra H. M. Hall 1900-3-23 Contra Costa Lauterwasser Creek Comment
Read comments
Jul 22 2008
  UC692028  Allium serra Mary L. Bowerman 1933-4-26 1932 Contra Costa Perkins Canyon branch between the main ridge of North Peak and the ridge to its south Mount Diablo, Perkins Canyon 518 Comment
  RSA34737  Allium serra R. C. Rollins 1946-3-25 3043 Contra Costa Western slope of Mount Diablo. Comment
  UC1481558  Allium serra Neil Havlik 1980-5-18 920 Contra Costa along fire road on e side, Morgan Territory Morgan Territory Comment
  IRVC12872  Allium serratum A. French 1967-5-20 38 Contra Costa Road from Walnut Creek to Mt. Diablo; ca. 3 mi. N of toll, entrance to state park. Comment
  JEPS56395  Allium unifolium W. L. Jepson 1918-6-3 7588 Contra Costa Donner Canyon Mt. Diablo, Donner Canyon 685 Comment
  UC3116  Allium unifolium State Survey 1174 Contra Costa Mt. Diablo Comment
  JEPS108359  Allophyllum gilioides David Gowen 2005-4-11 229 Contra Costa Mt. Diablo State Park. Below Devils Elbow in the upper part of Rhine Canyon drainage. Comment
  SEINET11268247  Allophyllum gilioides Barbara Ertter, Tony Morosco 1998-4-12 16021 Contra Costa Mount Olympia on north side of Mount Diablo, Olympia Road down ridge west of summit.; 0 853 Comment
  JEPS69375  Allophyllum gilioides subsp. violaceum Mary L. Bowerman 1935-4-26 2919 Contra Costa summit Meridian Peak; Mt. Diablo, Meridian Peak 1158 Comment
  CAS-BOT-BC170932  Alnus rhombifolia Alice Eastwood 1914-2-24 3732 Contra Costa Antioch Comment
  CAS-BOT-BC170933  Alnus rhombifolia Alice Eastwood 1914-3-6 s.n. Contra Costa Redwood Canyon Comment
  UC1093922  Alnus rhombifolia Herbert L. Mason 1924-11-23 1159 Contra Costa Las Trampas Ridge; via Cashion Comment
  UC1952849  Aloe striatula Barbara Ertter 2007-5-20 19027 Contra Costa Berkeley Hills SE of UC campus, along path north of Dwight Way extension at head of Panoramic Way Comment
  UC768586  Alopecurus saccatus R. F. Hoover 1937-5-14 2120 Contra Costa Byron Hot Springs Comment
  UC691932  Amaranthus albus Mary L. Bowerman 1935-6-28 3176 Contra Costa s of Meridian Peak summit (300 yds e of the meridian fence); Mt. Diablo 487 Comment
  UC691945  Amaranthus albus Mary L. Bowerman 1932-8-27 1515 Contra Costa s of Turtle Rock; Mt. Diablo Comment
  POM300587  Amaranthus albus Mary L. Bowerman 1932-8-27 1515 Contra Costa Pond south of Turtle Rock Comment
  UC691934  Amaranthus californicus Mary L. Bowerman 1935-9-13 3336 Contra Costa Hidden Pond Mount Diablo Comment
  UC2027912  Amaranthus californicus Barbara Ertter 2000-9-30 17537 Contra Costa West side Mount Diablo, pond on west side of Briones-Mount Diablo Trail south of Stonegate Trail junction. Comment
  CDA7886  Amaranthus deflexus D. G. Kelch, A. G. Murdock 2004-7-9 04 .291-B Contra Costa Carquinez Strait; Crockett; Edwards Creek, immediately below high school. Comment
  JEPS111728  Ambrosia chamissonis D. G. Kelch 2004-7-9 04 .312 Contra Costa Rodeo Shore 2 Comment
  UC1618423  Ambrosia chamissonis Barbara Ertter, Brad Olson 1993-10-30 12288 Contra Costa n.e. Rodeo (across railroad tracks from San Pablo Ave., small sandy beach next to jetty) Comment
  UCD33151  Ampelodesmos mauritanicus Beecher Crampton 1966-10-18 7816 Contra Costa Contra Costa County, Kensington, Berkeley Hills Blake Garden, UC Berkeley Dept. of landscape architecture. Comment
  UCR197916  Amsinckia Beecher Crampton 1950-4-22 522 Contra Costa Above site of Judsonville, west of old Empire mine 183 Comment
  CAS-BOT-BC222220  Amsinckia John Thomas Howell 1934-4-8 11827 Contra Costa South of Antioch Comment
  CAS-BOT-BC222226  Amsinckia Alice Eastwood; John Thomas Howell 1936-4-19 2131 Contra Costa Nortonville Comment
  CAS-BOT-BC222227  Amsinckia Alice Eastwood; John Thomas Howell 1936-4-19 2131 Contra Costa Nortonville Comment
  CAS-BOT-BC222228  Amsinckia Alice Eastwood; John Thomas Howell 1936-4-19 2141 Contra Costa Somersville Comment
  UC78278  Amsinckia grandiflora T. S. Brandegee May 1887 Contra Costa Judsonville Comment
  CDA9449  Amsinckia intermedia D. G. Kelch 1992-3-21 1821 -A Contra Costa 2.5 mi. SE of Byron; along RR tracks, N of junction of Holey Rd. and Byron Hwy. 0 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
  SEINET12479829  Amsinckia intermedia R. R. Halse 1988-2-20 3541 Contra Costa Along State Hwy 4, near its junction with Balfour Road, S edge of Brentwood. 23 Comment
  RSA31867  Amsinckia intermedia A. A. Heller 1938-4-9 15014 Contra Costa In an orchard near Walnut Creek. Comment
  UC1094071  Amsinckia intermedia Francia Chisaki 1952-3-13 203 Contra Costa 0.25 mi s of Highway #50 (on Mountain House Road) Comment
  JEPS25425  Amsinckia lunaris Rimo Bacigalupi with G. T. Robbins 1959-4-24 7042 Contra Costa just n of summit of Hampton Road (1/2 mi n of junction with Bear Creek Road) 228 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
  LA29456  Amsinckia lunaris Francia Chisaki; Peter Kamb 1952-5-4 2275 Contra Costa Bear Creek Road, 1.5 mi. E of Orinda-Richmond road (leaving this road ca. 1 mi. N of Orinda) 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
  UC24601 Image available Amsinckia lycopsoides J. Burtt Davy 1895-4-7 887 Contra Costa Antioch; ; Antioch, Contra Costa Co. Comment
  UCR47852  Amsinckia lycopsoides Alfred Sattler 1972-4-2 16 Contra Costa Mt. Diablo Creek Drainage Area, Concord; SE corner of Wilson Lane and West St. 51 Comment
  JEPS18322  Amsinckia lycopsoides Rimo Bacigalupi with F. Chisaki 1957-3-27 5757 Contra Costa 3/4 mi w Antioch (along Somersville road between Borden Highway and S. P. Ry) 19 Comment
  CHSC75115  Anagallis arvensis Roger Thom 1987-5-26 21 Contra Costa 2800 block of Buena Vista Ave. Walnut Creek. 30 Comment
  JEPS127041  Anagallis arvensis Lowell Ahart, Josephine Guardino 2016-4-19 20784 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
  UCD146714  Anagallis arvensis G. F. Hrusa; D. Crowe 1998-5-8 14394 Contra Costa Sacramento-San Joaquin River Delta. East end of Dow Chemical property at Pittsburg. 15 Comment
  RSA465156  Anagallis arvensis Ynez Whilton Winblad 1935-4-18 s.n. Contra Costa Taken north of Pinole. Comment
  UC691815  Ancistrocarphus filagineus Mary L. Bowerman 1935-4-17 2834 Contra Costa 2 mi from entrance on West rd (= North Rd), (hillside above serpentine outcrop) Mount Diablo 259 Comment
  UC2062460  Anemopsis californica Barbara Ertter with David Gowen and Mike Park 2004-6-13 18374 Contra Costa Black Diamond Mines Regional Preserve, just downstream from old homestead on west side of Old Homestead Loop. Comment
  RSA293388  Anemopsis californica Reino Alava 1958-5-25 2074 Contra Costa 1.5 miles N of Dublin on the rd to Walnut Creek. Comment
  UC692565  Angelica californica Mary L. Bowerman 1931-6-2 915 Contra Costa Mount Diablo, Gregory Ranch Road Mount Diablo; , Gregory Ranch Road 518 Comment
  CHSC75049  Anthemis cotula Roger Thom 1987-5-27 24 Contra Costa 1900 block of Olympic Blvd. (at Newell Ave.), Walnut Creek. 15 Comment
  CAS-BOT-BC84715  Anthemis cotula E. M. Zeile 1921-8-6 1136 Contra Costa Shepherd Canon 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
  JEPS107105  Anthriscus caucalis Barbara Ertter, Lisa Schultheis 1995-4-27 14015 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; north-facing open brushy slope with scattered oaks along extension of Valley View road. 182 Comment
  JEPS99545  Anthriscus caucalis Mary Bowerman 1995-7-2 Contra Costa Mount Diablo, probably Back Canyon or foot trail to Donner Canyon. Comment
  UC691891  Anthriscus caucalis Mary L. Bowerman 1932-5-6 1413 Contra Costa Mitchell Canyon floor Mitchell Canyon; Mount Diablo Comment
  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
  UC691615  Antirrhinum kelloggii Mary L. Bowerman 1933-4-26 1919 Contra Costa ese of North Peak (North Peak ridge, s-face); Mount Diablo 609 Comment
  SEINET8242148  Antirrhinum vexillocalyculatum A. D. E. Elmer 1903-1 4809 Contra Costa Mount Diablo. Comment
  UC691600  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Mary L. Bowerman 1932-9-3 1535 Contra Costa Muir Area; Mount Diablo Comment
  UC2029063  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Barbara Ertter 2000-7-29 17447 Contra Costa Donner Basin on north side of Mount Diablo, Cardinet Oaks Road at junction with Falls Trail. Comment
  SEINET3161272  Aphyllon comosum Unknown sn Contra Costa Antioch Comment
  UC2027940  Apiastrum angustifolium Barbara Ertter with Tony Morosco and other CNPS members 2001-5-6 17621 Contra Costa Northwest flank of Mount Diablo, trail on west face of Black Point. Comment
  JEPS60419  Aquilegia W. L. Jepson 1920-9-6 9084 Contra Costa Mt. Diablo Comment
  UC692207  Aquilegia eximia Mary L. Bowerman 1933-6-2 2331 Contra Costa Donner Canyon Mount Diablo Comment
  CAS-BOT-BC392089  Aquilegia formosa Mary L. Bowerman 1935-5-18 3021 Contra Costa Mount Diablo. Northwest-facing slope across the road from, and a little east of, the parking area 1066 Comment
  UC571094  Arbutus menziesii H. L. Mason 1924-11-23 1160 Contra Costa Cashion Canyon Comment
  UC692481  Arbutus menziesii Mary L. Bowerman 1931-3-21 598 Contra Costa Sycamore Canyon, west fork Sycamore Canyon; Mount Diablo, Sycamore Canyon 396 Comment
  UC465859  Arceuthobium campylopodum E. W. Hicks 1917-3-25 110 Contra Costa canyon, n slope Mt. Diablo Comment
  CAS-BOT-BC410130  Arceuthobium occidentale J Kuijt 1958-1-22 s.n. Contra Costa Mt. Diablo 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
  CAS-BOT-BC24108  Arctostaphylos auriculata Alice Eastwood; John Thomas Howell 1936-4-19 2130 Contra Costa Nortonville Comment
  CAS-BOT-BC24111  Arctostaphylos auriculata Walter Knight; Irja Knight 1968-2-19 2276 Contra Costa Sandmine ravine in Somersville Comment
  CDA31098  Arctostaphylos auriculata D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .23 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  RSA44371  Arctostaphylos auriculata L. S. Rose 1949-3-6 49004 Contra Costa Mt. Diablo, above Rock City. 518 Comment
  UC1120858  Arctostaphylos auriculata H. A. Jensen 1938-10-27 450 Contra Costa head of Curry Canyon Mt. Diablo Quadrangle Comment
  UC1200413  Arctostaphylos auriculata Edward Lee 1936-1-12 1713 Contra Costa w-facing slope immediately s Nortonville Comment
  UC2028008  Arctostaphylos auriculata Barbara Ertter with Amy Rusev 1998-1-17 15895 Contra Costa Lime Ridge Open Space at NW foot of Mount Diablo. Comment
  UC2028019  Arctostaphylos auriculata Barbara Ertter 1997-9-14 15817 Contra Costa Southwest side of Mount Diablo, Wall Point Road on open sandstone ridge northwest of Wall Point. Comment
  CAS-BOT-BC27181  Arctostaphylos bowermaniae James B. Roof 1977-11-18 1009 Contra Costa Along Black Diamond Trail of the Black Diamond Regional Preserve 243 Comment
  CAS-BOT-BC23551  Arctostaphylos crustacea Walter Knight; Irja Knight 1980-3-16 3715 Contra Costa Sobrante Ridge between Heavenly Ridge Land and Castro Ranch Road. Comment
  CAS-BOT-BC23593  Arctostaphylos crustacea Walter Knight 1980-3-6 3719 Contra Costa Redwood Regional Park, East Ridge Trail Comment
  CAS-BOT-BC23595  Arctostaphylos crustacea Gladys L. Smith 1966-4-9 s.n. Contra Costa Moraga Ridge (Pine Ridge section) Comment
  UC2029046  Arctostaphylos crustacea subsp. crustacea Barbara Ertter with Linda Vorobik 2000-1-9 16889 Contra Costa Las Trampas Regional Wilderness in East Bay Hills west of Danville. Comment
  UC1120316  Arctostaphylos glandulosa subsp. glandulosa H. A. Jensen 1938-10-27 453 Contra Costa head of Sycamore Creek Mount Diablo Quadrangle Comment
  JEPS38916  Arctostaphylos glauca Mary L. Bowerman 1930-6-22 362 Contra Costa Mitchell Canyon Mount Diablo Comment
  RSA632819  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27583 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  JEPS38921  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1933-3-25 1769 Contra Costa n face of canyon Mount Diablo, Pine Canyon (near top of ridge, approached up Diablo Stock Farm Canyon) Comment
  POM203168  Arctostaphylos manzanita subsp. laevigata L. S. Rose 1934-2-28 34040 Contra Costa 8 miles NE Danville, S slope of Mt. Diablo. Comment
  UC549575  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 674 Contra Costa Mount Diablo Comment
  UC549604  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-10-6 675 Contra Costa Mt. Diablo Comment
  UC876425  Arctostaphylos manzanita subsp. laevigata Lewis S. Rose 1934-2-28 34040 Contra Costa 8 mi ne Danville (s slope of mt., type locality); Mt. Diablo Comment
  UCD51727  Arctostaphylos manzanita subsp. laevigata R. C. Wilson 1935-2-26 112 Contra Costa 3/4 mile southwest of Somersville. 411 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-BC24388  Arctostaphylos manzanita subsp. manzanita Walter Knight; Irja Knight 1968-1-22 2274 Contra Costa In El Sobrante on Skyline Drive. 76 Comment
  CAS-BOT-BC24397  Arctostaphylos manzanita subsp. manzanita H. E. McMinn 1923-3-6 876 Contra Costa Sycamore Canon. Comment
  UC1120870  Arctostaphylos pallida R. W. Lundh 1933-1-12 188 Contra Costa 1/2 mi s Round Mt.; Concord Quadrangle 609 Comment
Read comments
Mar 14 2007
  JEPS98840  Arctostaphylos tomentosa subsp. crustacea Walter Knight, Irja Knight, James B. Roof, R. Gankin, R. Hildreth 1964-10-7 Contra Costa near Rock City; Mt. Diablo Comment
  UC1120126  Arctostaphylos tomentosa subsp. crustacea R. C. Wilson 1935-3-27 149 Contra Costa 1 mi s Cave Pt.; Mount Diablo Quadrangle Comment
  UC1120146  Arctostaphylos tomentosa subsp. crustacea C. M. Belshaw 1936-2-16 1589 Contra Costa 2 1/2 mi nw Lafayette; Concord Quadrangle, Lafayette Ridge Comment
  UC549411  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 626 Contra Costa Moraga Ridge Comment
  UC549445  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 632 Contra Costa Moraga Ridge Comment
  UC549462  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 634 Contra Costa Moraga Ridge Comment
  UC549464  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 629 Contra Costa Moraga Ridge Comment
  SJSU1772  Aristolochia californica J. B. Youngberg 1956-4-28 357 Contra Costa 6 mi E of Orinda 198 Comment
  SJSU6159  Aristolochia californica C. O. Dudley 1966-5-1 106 Contra Costa Reliez Valley, Briones Hills N of Lafayette 152 Comment
  UC1606406  Aristolochia californica Barbara Ertter 1993-4-2 11476 Contra Costa below Vista Rd. w. of Crockett (midslope, Carquinez Regional Park); Carquinez Regional Park Comment
  UC691351  Arnica discoidea Mary L. Bowerman 1931-5-16 849 Contra Costa summit Meridian Peak; Mount Diablo Comment
  CDA37337  Artemisia biennis D. G. Kelch 2010-10-31 10 .442 Contra Costa Valley north of Alhambra Valley Rd., south of Pinole Peak, east of Hercules. Comment
  LA202980  Artemisia californica J. A. Ewan; November 1934 9079 Contra Costa Wildcat Canyon, 0.75 mi. below Orinda road bridge Comment
  JEPS75552  Artemisia douglasiana P. F. Yorks 1975-7-12 472 A Contra Costa north of Briones Reservoir (on Hampton Road 1.7 km s of Bear Creek Road); Hampton Road Natural Reserve Comment
  CAS-BOT-BC90297  Artemisia douglasiana Vincent Jones 1920-8-20 s.n. Contra Costa Vallejo Comment
  CAS-BOT-BC146259  Arundo donax Walter Knight; et al 1978-10-11 3328 Contra Costa Browns Island. Between South Landing and Alder Point. Comment
  UC141712  Asclepias californica C. F. Baker 1903-4-28 2871 Contra Costa Marsh Creek Mt. Diablo Comment
  UC35243  Asclepias cordifolia Prof. E. L. Greene April 1889 Contra Costa hills near Martinez Comment
  UC630420  Asclepias fascicularis Paule Guiguet, Annetta Carter 1939-8-13 1446 Contra Costa 0.3 mi s Marsh Creek Road (Treat Avenue, e of Concord) 60 Comment
  UC691841  Asclepias fascicularis Mary L. Bowerman 1935-6-28 3162 Contra Costa Old Government Trail Mount Diablo 518 Comment
  UCD121325  Asclepias fascicularis Francis D. Galey 1989-10-31 s.n. Contra Costa ca. 4-5 miles southwest of Byron, upper ranch area of Vaquero Farms, southeast of Diablo Canyon Road. Comment
  JEPS112507  Asparagus officinalis subsp. officinalis A. G. Murdock 2003-6-24 115 Contra Costa Mt. Wanda - Martinez Near parking lot at NE corner of Mt. Wanda 37 Comment
  JEPS79589  Aspidotis californica Edward Lee 1978-12-20 Contra Costa Devil's Elbow trail Mt Diablo 1036 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
  RSA666355  Aster radulinus Barbara Ertter, Dianna Lake 1991-8-18 10675 Contra Costa Carquinez Strait Regional Shoreline east of Crockett, northeast of Bull Valley staging area Comment
  UCD104630  Astragalus asymmetricus C. A. Hooper 1936-8-5 s.n. Contra Costa Pittsburg. 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
  UC1949066  Astragalus gambelianus Barbara Ertter 2005-5-8 18566 Contra Costa Mount Diablo State Park, Burma Road below Moses Rock Spring on Long Ridge Comment
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Feb 13 2016
  UC2028334  Astragalus gambelianus Barbara Ertter 1991-5-5 9771 Contra Costa Black Diamond Mines Regional Preserve S. of Pittsburg, halfway up E ridge of Rose Hill above cemetery, level spot Comment
  CAS-BOT-BC17455  Athysanus pusillus Alice Eastwood 1914-2-24 3739 Contra Costa Antioch. Comment
  POM272526  Athysanus pusillus Lyman Benson 1935-3-16 6262 Contra Costa Mt. Diablo, Watershed: Walnut Creek; Mountain Range: Mt. Diablo. 915 Comment
  JEPS108320  Athysanus pusillus David Gowen 2005-2-23 168 Contra Costa Mt. Diablo State Park. Juniper Trail just south of Silver Spring. Comment
  CAS-BOT-BC16333  Athysanus unilateralis Alice Eastwood 1914-3-14 3766 Contra Costa Byron Springs. Comment
  CAS-BOT-BC168611  Atriplex Alice Eastwood 1927-5-19 14438 Contra Costa Byron Springs Comment
  UC205356  Atriplex argentea var. mohavensis H. M. Hall 1919-11-12 10972 b Contra Costa where road turns from highway to Springs (Byron); Byron Comment
  CAS-BOT-BC168564  Atriplex cordulata Walter Knight 1977-7-4 s.n. Contra Costa Black Diamond Mines Regional Preserve near Antioch. About 1 mile south of Contra Loma Regional Park 45 Comment
  CAS-BOT-BC168540  Atriplex coronata John Thomas Howell 1930-9-28 5503 Contra Costa 5.4 miles from Byron on Marsh Creek Road Comment
  JEPS99040  Atriplex coronata Robert E. Preston & Eva Buxton 1994-8-4 618 Contra Costa 0.9 mi NW Marsh Creek Reservoir. 76 Comment
  UCD77372  Atriplex coronata Robert E. Preston 2000-9-6 1436 Contra Costa Byron Tract, at the confluence of Indian Slough and Old River, on landward side of levee. UTM 4196850N 626265E 3 Comment
  JEPS65178  Atriplex fruticulosa L. R. Heckard 1971-4-15 2489 Contra Costa in crack of old road pavement at intersection of Holey Road s Byron; s of Byron 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
  CAS-BOT-BC146023  Avena barbata Mary L. Bowerman 1931-5-13 845 Contra Costa Mount Diablo. Pine Canyon floor one mile above the sulphur spring. Comment
  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
  JEPS75537  Avena barbata P. F. Yorks 1976-4-28 144 Contra Costa on Hampton Rd 1.3 to 1.9 km s Bear Creek Road (n of Briones Reservoir); Hamton Road Natural Reserve Comment
  UC692313  Avena barbata Mary L. Bowerman 1931-5-13 845 Contra Costa canyon floor 1 mi above suphur spring; Mount Diablo, Pine Canyon Comment
  CAS-BOT-BC146022  Avena barbata Mary L. Bowerman 1932-4-16 1355 Contra Costa Mount Diablo. Eagle Point Ridge south of Twin Peaks. Comment
  RSA301850  Avena fatua Mary L. Bowerman 1931-5-7 809 Contra Costa North Peak Comment
  UC579865  Avena fatua Annetta Carter 1936-4-19 1129 Contra Costa Red Rock San Francisco Bay (nw slope near summit of island) Comment
  JEPS112257  Azolla filiculoides Andrew G. Murdock 2004-4-30 311 Contra Costa In Pinole Creek near Pig Sale. Comment
  SEINET11843057  Baccharis pilularis subsp. consanguinea Unknown 1983-1 4966 Contra Costa Castro Ranch Rd between Hillside St & Alhambra Valley Rd Comment
  OBI16940  Balsamorhiza deltoidea Rimo Bacigalupi 1955-5-4 4978 Contra Costa S of and above Nortonville, along rd to Irish Cyn 427 Comment
  CAS-BOT-BC106561  Balsamorhiza deltoidea Rimo Bacigalupi; G. T. Robbins 1955-5-4 4978 Contra Costa On west facing slope south of and above Nortonville, along road to Irish Canyon 426 Comment
  PASA1585  Balsamorhiza deltoidea Annetta Carter 1929-3-31 Contra Costa Hills north of Mt. Diablo, near Clayton Comment
  UC1818940  Barbarea orthoceras Barbara Ertter, Mary Bowerman 1994-6-19 12843 Contra Costa Mt. Diablo State Park east of Walnut Creek; Muir Picnic Area on Summit Road, ca. 3300'; roadside cut thru chaparral. Comment
  JEPS15610  Bellardia trixago R. Bacigalupi and G. Thomas Robbins 1955-5-4 4973 Contra Costa E edge, field along treat Lane Concord; Clayton Valley 60 Comment
  CAS-BOT-BC102085  Bidens frondosa Walter Knight 1978-8-27 3153 Contra Costa Contra Loma Regional Park 30 Comment
  NY31016  Blennosperma californicum A. M. Carter 1937-3-28 1225 Contra Costa Marsh Creek road, 15 miles east of Concord 152.4 Comment
  CAS-BOT-BC100697  Blennosperma nanum var. nanum Peter H. Raven; H. L. Mason; R. Ornduff; et al. 1957-4-4 10588 Contra Costa Vernal flats 3.0 miles s. of Byron Comment
  CAS-BOT-BC100698  Blennosperma nanum var. nanum Alice Eastwood 1914-3-14 3768 Contra Costa Byron Springs Comment
  JEPS17891  Blennosperma nanum var. nanum Rimo Bacigalupi with G. T. Robbins 1956-3-26 5526 Contra Costa Deer Valley, along Deer Valley Road 76 Comment
  UC1543131  Blennosperma nanum var. nanum Donald G. Nelson 1937-3-30 459 Contra Costa about halfway between Clayton and Byron, Marsh Creek Highway Clayton Comment
  CAS-BOT-BC100333  Blepharizonia plumosa R. F. Hoover 1937-8-31 2704 Contra Costa Pittsburg Comment
  CAS-BOT-BC100335  Blepharizonia plumosa R. F. Hoover 1937-9-2 2708 Contra Costa Walnut Creek Comment
  CAS-BOT-BC100340  Blepharizonia plumosa Miss H. A. Walker 1916-8-28 3922 Contra Costa Los Medanos, near Antioch Comment
  RSA332608  Blepharizonia plumosa M. K. C 1885-08 s.n. Contra Costa Antioch Comment
Read comments
Dec 16 2012
  UC762569  Blepharizonia plumosa R. F. Hoover 1937-8-31 2704 Contra Costa Pittsburg Comment
  CAS-BOT-BC100332  Blepharizonia plumosa H. M. Hall 1916-8-17 10275 Contra Costa Los Medanos, Suisan Bay Comment
  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
  UC10111  Boechera breweri subsp. breweri H. P. Chandler and H. M. Hall 1901-4-5 Contra Costa Mt. Diablo summit Mt. Diablo Comment
  UC565476  Boechera breweri subsp. breweri Herbert L. Mason 1926-3-7 2796 Contra Costa Summit of Mt. Diablo Mt. Diablo Comment
  UCD102382  Boechera breweri subsp. shastaensis Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 1060 Comment
  RSA41191  Boisduvalia glabella Robert F. Hoover 1937-5-19 2119 Contra Costa Byron Hot Springs Comment
  CAS-BOT-BC31333  Bolboschoenus maritimus Walter Knight; Irja Knight 1979-9-10 3431 Contra Costa In ditch near corner of Moraga Rd and st Marys Road. Moraga. Comment
  CHSC79610  Bolboschoenus maritimus subsp. paludosus G. F. Hrusa; D. Crowe 1998-5-8 14395 Contra Costa Sacramento-San Joaquin River Delta. At E end of Dow Chemical property in Pittsburg. 15 Comment
  CAS-BOT-BC31391  Bolboschoenus robustus J. W. Congdon 1893-7-29 s.n. Contra Costa Martinez Comment
  CAS-BOT-BC95326  Bowlesia incana Mary L. Bowerman 1931-3-21 591 Contra Costa Sycamore Canyon, Mount Diablo Comment
  CAS-BOT-BC95329  Bowlesia incana Mary L. Bowerman 1935-6-1 3098 Contra Costa Pine-Mitchell divide, Mount Diablo 975 Comment
  UC692372  Bowlesia incana Mary L. Bowerman 1933-4-22 1889 Contra Costa Mount Diablo, Curry-Cave Point Trail Mount Diablo; , Curry-Cave Point Trail 426 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
  UC1126847  Brassica nigra R. W. Lundh 1932-7-13 126 Contra Costa 1 mi e of Chaparral Springs (Mount Diablo Quadrangle); Mount Diablo Quadrangle 457 Comment
  UC34624  Brickellia californica V. King Chesnut 1887-9-11 Contra Costa Mt. Diablo Comment
  JEPS99494  Brickellia californica Mary Bowerman 1994-10-30 Contra Costa Mount Diablo, Hetherington Loop, streamlet just below upper stream crossing. Comment
  JEPS108535  Briza maxima Lisa Schultheis 1995-4-29 76 -95 Contra Costa along Knobcone Point trail, just after Curry Point trail splits into Knobcone and BlackHawk trails Comment
  JEPS100061  Brodiaea elegans G. Smick 2003-6-6 GAS 216 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC484265  Brodiaea elegans subsp. elegans J. Bauer 1851-11-1 s.n Contra Costa Mt. Diablo (handwriting inlegible) Comment
  UC768749  Brodiaea terrestris subsp. terrestris R. F. Hoover 1937-5-14 2122 Contra Costa Byron Hot Springs Comment
  JEPS116935  Brodiaea terrestris subsp. terrestris David Gowen 2008-4-27 873 Contra Costa Contra Loma Regional Park entrance at Black Diamond Mines Regional Preserve parking area at Frederickson Lane, south of parking area. Comment
  UCD37380  Bromus Beecher Crampton 1960-3-29 5481 Contra Costa Contra Costa County, city of El Cerrito, corner of Carlson and Lassen Boulevards. Comment
  CAS-BOT-BC149399  Bromus berteroanus Mary L. Bowerman 1933-4-15 1874 Contra Costa Mount Diablo. Canyon south of Arroyo del Cerro. Rocky knoll 250 feet below spring. Comment
  CAS-BOT-BC149400  Bromus berteroanus Mary L. Bowerman 1935-4-17 2844 Contra Costa Mount Diablo. North Road 2 miles from North Gate, ridge west of chaparral. Immediately east of section line. 304 Comment
  CHSC75136  Bromus carinatus Roger Thom 1987-4-21 3 Contra Costa 3300 block Johnson Rd. Lafayette. 152 Comment
  UC1948971  Bromus carinatus William J. Ferlatte, L. Maynard Moe 1970-4-27 1237 Contra Costa San Francisco Bay: Red Rock Island Comment
  UCR152271  Bromus carinatus Beecher Crampton 1960-3-29 5481 Contra Costa city of El Cerrito, corner of Carlson Blvd. and Lassen St. 5 Comment
  CAS-BOT-BC156062  Bromus diandrus Walter Knight; Irja Knight; et al 1978-9-5 3219 Contra Costa Browns Island. Sandy Knoll. Comment
  UC691216  Bromus diandrus Mary L. Bowerman 1932-4-27 1372 Contra Costa w of Riggs Canyon (Mount Diablo, Oyster Ridge); Mount Diablo, Oyster Ridge 289 Comment
  UCD36912  Bromus diandrus Beecher Crampton 1956-5-14 3378 Contra Costa 4.6 miles south of city of Antioch, on Empire Mine Drive, at head of Horse Valley. Comment
  CAS-BOT-BC156065  Bromus diandrus Mary L. Bowerman 1935-5-1 2935 Contra Costa Mount Diablo. North Road 2 miles from entracne. 182 Comment
  POM363884  Bromus hordeaceus Anstruther Davidson 1930-07 3244 Contra Costa Mt. Diablo. Comment
Read comments
Mar 6 2011
  UC1618047  Bromus hordeaceus Donald G. Nelson 1937-3-30 477 Contra Costa s of Byron (on road to Tracy, along railroad tracks paralleling the highway) Comment
  UC697136  Bromus hordeaceus Mary L. Bowerman 1933-5-17 2099 Contra Costa Mount Diablo, branch of Curry Canyon, due s of Olasfsons' barn Curry Canyon; Mount Diablo, Curry Canyon Comment
  UCD58641  Bromus hordeaceus Beecher Crampton 1956-5-14 3417 Contra Costa 1/2 mile northwest of Martinez. Road to Crockett. Comment
  UCD58767  Bromus hordeaceus L. S. Smith 1914-5-9 s.n. Contra Costa Mt. Diablo. West slope. Comment
  SEINET3246736  Bromus hordeaceus Horace P. Miller 1986-1 9 -690 Contra Costa Lafayette Comment
  UC692368  Bromus laevipes Mary L. Bowerman 1935-5-30 3095 Contra Costa between two ridges which converge at Twin Peaks ((Eagle Point Ridge)); Mount Diablo 350 Comment
  UCD58925  Bromus laevipes P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  POM301030  Bromus madritensis Mary L. Bowerman 1933-5-8 2004 Contra Costa Fossil Ridge, south face, not far from but out of sight of South Entrance 290 Comment
  UCD36914  Bromus madritensis Beecher Crampton 1956-5-14 3385 Contra Costa 6.7 miles southwest of city of Antioch, along ridge between old coal mining towns of Somersville and Nortonville. Comment
  CAS-BOT-BC162352  Bromus madritensis Mary L. Bowerman 1935-5-16 2991 Contra Costa Mount Diablo. Russelman Park, at end of road. Comment
  CAS-BOT-BC162355  Bromus madritensis Mary L. Bowerman 1935-5-3 2961 Contra Costa Sloan Road. 487 Comment
  UC692336  Bromus madritensis subsp. madritensis Mary L. Bowerman 1932-4-27 1371 Contra Costa canyon w of Riggs Canyon (s face of Oyster Ridge, Mount Diablo); Mount Diablo, Oyster Ridge 289 Comment
  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
  UC37706  Bromus madritensis subsp. rubens J. Burtt Davy 1895-4-7 890 Contra Costa Antioch Comment
  CDA29488  Bromus pseudolaevipes D. G. Kelch, Troy MacGregor 2009-5-1 9 .276 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  UC677567  Bromus racemosus P. F. Knowles B 72 Contra Costa 1 mi w of Rodeo Comment
  UCD59584  Bromus rubens P. B. Kennedy 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  UCD59633  Bromus rubens A. A. Beetle 1942-3-22 2930 Contra Costa Taber Island. Small island off SW side of Brooks Island in San Francisco Bay. Comment
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Aug 20 2011
  CDA29540  Bromus sterilis D. G. Kelch, Troy MacGregor 2009-5-1 9 .29 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  UC2028418  Bromus sterilis Barbara Ertter 2001-5-10 17637 Contra Costa Mount Diablo, Juniper Trail above Laurel Dell Comment
  UC606723  Bromus trinii Edward Lee 1936-4-19 1970 Contra Costa San Francisco Bay, Red Rock Red Rock; San Francisco Bay, Red Rock Comment
  UC692338  Bromus trinii Mary L. Bowerman 1935-4-17 2844 c Contra Costa North Road 2 mi from North Gate (immediately e of section line); Mount Diablo, North Road 304 Comment
  CAS-BOT-BC233995  Calandrinia breweri Mary L. Bowerman 1932-4-16 1338 Contra Costa Eagle Point ridge south of 1682 point, Mount Diablo Comment
  CAS-BOT-BC438372  Calandrinia ciliata Mary L. Bowerman 1939-5-2 3741 Contra Costa Mount Diablo. By road to Barbecue Terrace (off South Road) 563 Comment
  UC85557  Calandrinia ciliata Katharine Brandegee May, 1889 Contra Costa Antioch Comment
  JEPS48655  Calandrinia ciliata Elsa Kraeger 1926-5-7 Contra Costa near Toll Gate (road to Mt. Diablo) Comment
  UCD100165  Calandrinia ciliata Beecher Crampton 1950-4-16 512 Contra Costa Along R.R. embankment, Giant. Comment
  CHSC23336  Calandrinia ciliata var. menziesii Willis Ball 1975-3-2 473 Contra Costa Contra Loma Regional Park. In area #2. On s side of hill ca. 50 yds ne of single restroom at sw end of lake. Approximately half way up large hill. 53 Comment
  UC2028218  Calochortus argillosus Barbara Ertter with Christopher Baysdorfer 1998-5-10 16128 Contra Costa West-center Lime Ridge Open Space northwest of Mount Diablo. Comment
  UC2029142  Calochortus argillosus Barbara Ertter with Alan Prather 2003-6-7 18193 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, Valley View Trail at NE corner of park. Comment
  CAS-BOT-BC132489  Calochortus pulchellus A. D. E. Elmer 1903-6-1 4631 Contra Costa Mount Diablo Comment
  CAS-BOT-BC132491  Calochortus pulchellus Mrs. T. A. McGlynn 1925-6-14 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC132504  Calochortus pulchellus Alice Eastwood 1923-5-4 11728 Contra Costa Mt. Diablo 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
  JEPS122394  Calochortus pulchellus Nisrine Machaka-Houri 2014-5-17 NG 14 Contra Costa Black Point Trail, Mitchell Canyon, Mt. Diablo State Park. Comment
  OBI21346  Calochortus pulchellus Robert F. Hoover 1968-5-16 11092 Contra Costa Upper Marsh Creek Comment
  POM169905  Calochortus pulchellus A. D. E. Elmer 1903-06 s.n. Contra Costa Mount Diablo Comment
  UC176356  Calochortus pulchellus R. P. Brandt 1914-5-2 Contra Costa near farm house, in branch of Pine Canyon Mt. Diablo, Pine Canyon Comment
  SBBG52847  Calochortus umbellatus M. L. Long -Apr-1978 Contra Costa hills W of Rossmoor, Walnut Crk Comment
Read comments
Jan 28 2012
  JEPS61759 Image available Calochortus venustus W. L. Jepson 1918-6-3 7571 Contra Costa near summit Donner Canyon; Mt. Diablo 1066 Comment
  RSA68630  Calochortus venustus Frank W. Peirson 1923-7-1 3682 Contra Costa Mt. Diablo. Comment
  UC2028315  Calochortus venustus Barbara Ertter, Susan D'Alcamo 1998-6-12 16156 Contra Costa North Gate Road on west flank of Mount Diablo, ca 1/2 mile below upper Turtle Rock Ranch buildings. Comment
  CAS-BOT-BC275399  Calycadenia truncata var. truncata L. R. Abrams 1910-10-8 4338 Contra Costa Mount Diablo 701 Comment
  CAS-BOT-BC275400  Calycadenia truncata var. truncata A. D. E. Elmer 1903-7-1 4759 Contra Costa Mount Diablo Comment
  CAS-BOT-BC224748  Calystegia malacophylla subsp. pedicellata Mary L. Bowerman 1935-6-8 3126 Contra Costa Mount Diablo. Summit 1170 Comment
  CAS-BOT-BC224752  Calystegia malacophylla subsp. pedicellata Paul F. Covel 1940-5-12 1785 Contra Costa Summit Mt. Diablo Comment
  UCD163494  Calystegia sepium subsp. limnophila D. Slakey; CNPS Volunteers 2015-9-12 227 Contra Costa Browns Island, northern part of Crooked Slough. 0 Comment
  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
  UC2029024  Calystegia subacaulis Barbara Ertter 1999-7-17 16760 Contra Costa El Cerrito, west side of Arlington Ave. in small triangle of land between Moeser Ln. and Terrace Dr., among mowed Avena. Comment
  UC2028306  Calystegia subacaulis subsp. subacaulis Barbara Ertter, Susan D'Alcamo 1998-6-12 16199 Contra Costa Along Curry Canyon Road just east of Curry Point, south side of Mount Diablo. Comment
  JEPS31810  Camissonia campestris Miss Linda Gehringer 1914-3-29 Contra Costa Brentwood Comment
  UC20452  Camissonia campestris subsp. campestris J. Burtt Davy 1895-4-7 879 Contra Costa Antioch Comment
  UC35393  Camissonia campestris subsp. campestris Chesnut and Drew 1889-4-17 Contra Costa Antioch Comment
  UC635287  Camissonia campestris subsp. campestris H. L. Mason 1929-3-31 5153 Contra Costa Antioch San Joaquin River (sand dike along river) Comment
  UC873941  Camissonia contorta Lewis S. Rose 1938-5-8 38223 Contra Costa sand hills Antioch 15 Comment
  POM257269  Camissonia micrantha H. L. Mason 1929-3-31 5160 Contra Costa Along San Joaquin River Comment
  RSA41307  Camissonia ovata Robert F. Hoover 1938-2-21 2755 Contra Costa Point Richmond. Comment
  JEPS99558  Camissoniopsis intermedia Mary Bowerman 1995-5-28 Contra Costa Mount Diablo, knoll on N side of Wall Point Trail 1/2 encircled on W and N sides by road from Macedo Ranch to Pine Pond. 304 Comment
  UC692452  Camissoniopsis intermedia Mary L. Bowerman 1933-5-25 2182 Contra Costa steep s-facing slope at w end of s face of ridge Mount Diablo, Oyster Ridge 411 Comment
  UC140387  Camissoniopsis micrantha C. F. Baker 1903-4-25 2808 Contra Costa sandhills Antioch Comment
  UC764055  Camissoniopsis micrantha Robert F. Hoover 1935-3-10 314 Contra Costa Antioch sand-dunes Comment
  JEPS99590  Campanula exigua Mary Bowerman 1975-6-1 Contra Costa Mount Diablo. Upper Falls Trail a few feet below real 1st creek (not waterfall) coming from horsemen's. Comment
  SEINET10972314  Campanula exigua Alice Eastwood 1897-5-31 Eastwood s.n. Contra Costa Mount Diablo Comment
  UCSB40236  Capsella bursa-pastoris Fritzke, Sue 1980-3-1 Contra Costa Hills behind Walnut Heights Elementary School, off of Walnut Blvd., 1 mile east of intersection with Walker Rd. 121 Comment
  CAS-BOT-BC37393  Cardamine californica John Thomas Howell 1931-3-10 5757 Contra Costa East side of Mount Diablo 7 miles from Clayton on Livermore road. Comment
  CAS-BOT-BC37395  Cardamine californica Robert Francis Hoover 1938-2-21 2754 Contra Costa Point Richmond. Comment
  SBBG29852  Cardamine californica A. Carter, H. Sharsmith 1940-3-17 1498 Contra Costa near Stege Railroad Stn, 2 mi SE of Richmond 7 Comment
  UC1126899  Cardamine californica R. C. Wilson 1935-3-19 142 Contra Costa 1 mi se Wall Pt.; Mt. Diablo Quad. Comment
  UC691085  Cardamine californica Mary L. Bowerman 1931-2-8 504 Contra Costa Mineral Spring , Mineral Spring (Mount Diablo) 396 Comment
  UCSC000312  Cardamine californica var. californica Bill Knittle 1983-4-13 s.n. Contra Costa Mt. Diablo, Marsh Creek Comment
  UC1606309  Cardamine hirsuta Barbara Ertter 1993-2-28 11461 Contra Costa edge Vollmer Peak Trail (Tilden Regional Park in Berkeley Hills, above steam trains); Tilden Regional Park in Berkeley Hills Comment
  RSA721865  Cardamine hirsuta Barbara Ertter, Gary Schoolcraft 1996-4-7 14576 Contra Costa Molate Beach Park on San Francisco Bay N of San Rafael Bridge; S end of parking area. Comment
  UC2070560  Cardamine hirsuta Barbara Ertter 2002-5-16 17853 Contra Costa Richmond Field Station (UC-Berkeley). Comment
  JEPS100083  Cardamine oligosperma G. Smick 2003-5-30 GAS 200 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA0033843  Cardamine oligosperma Barbara Ertter 2000-3-30 16912 Contra Costa North side of Mount Diablo, Deer Flat at head of Mitchell Canyon. Comment
  JEPS111068  Cardamine oligosperma Lee Echols 2003-3-7 s.n. Contra Costa N of Lark Drive in S portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  CDA935  Cardaria chalepensis D. G. Kelch 2006-5-2 6 .214 Contra Costa Carquinez Strait; Fernandez Ranch; W. Christie Rd. Comment
  SEINET8734726 Image available Carduus pycnocephalus Laura Zeller 1965-1 83 Contra Costa just E of the University of California Botanical Garden 91 Comment
  JEPS99960  Carduus pycnocephalus subsp. pycnocephalus G. Smick 2003-4-10 GAS 137 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CDA15244  Carduus tenuiflorus G. F. Hrusa, D. Crowe 1998-5-8 14375 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  CAS-BOT-BC19203  Carex barbarae John Thomas Howell 1933-5-14 11236 Contra Costa St. Mary's College. Comment
  CAS-BOT-BC19205  Carex barbarae Walter Knight 1967-7-9 s.n. Contra Costa Tilden Park. Botanic Garden. Comment
  JEPS124459  Carex barbarae Daniel Slakey with CNPS Volunteers 2015-6-29 135 Contra Costa Mt. Diablo State Park. Slope above Emmons Canyon, along access trail from Macedo Ranch Staging Area. Comment
  UC2013067  Carex barbarae Barbara Ertter with Lisa Schultheis 1996-9-2 15279 Contra Costa South side Mount Diablo, Sycamore Creek below Sulfur Spring. Comment
  SEINET10653000  Carex bifida Lewis S. Rose 1935-5-16 Rose 35163 Contra Costa Mt. Diablo, Wet spots around springs. Comment
  UC691962  Carex densa Mary L. Bowerman 1934-4-21 2531 Contra Costa at junction of North and South Roads Canyon Nook Comment
  UC691964  Carex densa Mary L. Bowerman 1935-5-16 3001 Contra Costa Russelman Park road at Gregory Ranch junction Mount Diablo 289 Comment
  SEINET11268158  Carex globosa Barbara Ertter, Dan Norris 1998-6-18 16230 Contra Costa Black Hawk Ridge Road below Knobcone Point Road, south side of Mount Diablo.; 0 Comment
  UC2028541  Carex globosa Barbara Ertter 1998-3-7 15927 Contra Costa Southwest side of Mount Diablo, west end Fossil Ridge Trail. Comment
  UC2070640  Carex nudata Barbara Ertter 2002-8-24 18033 Contra Costa Lower Perking Canyon on NE base of Mount Diablo. Comment
  JEPS111620  Carex obnupta D. G. Kelch 2004-7-9 04 .305 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  CAS-BOT-BC119017  Carex pellita Walter Knight; B. Mortensen; J. Dean; R. Bensler; B. Atwater 1979-6-13 3364 Contra Costa Damp area in center of Browns Island. Comment
  CAS-BOT-BC119016  Carex pellita Walter Knight 1979-6-15 3382 Contra Costa Straight Slough. Browns Island. Comment
  UC1949084  Carex pendula Barbara Ertter with Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 19797 Contra Costa upper (south) end of San Pablo Dam Reservoir northwest of Orinda Comment
  UC692205  Carex serratodens Mary L. Bowerman 1938-5-28 3647 Contra Costa South Road Mount Diablo 640 Comment
  CAS-BOT-BC117550  Carex serratodens Miss Mary Leolin Bowerman 1930-6-28 400 Contra Costa Lower Silver Spring. Comment
  POM300644  Carex serratodens Mary L. Bowerman 1938-6-14 3683 Contra Costa Rocky Point Spring, Mount Diablo. 701 Comment
  CDA963  Carex tumulicola D. G. Kelch 2006-5-5 6 .131 Contra Costa East Bay; Wildcat Canyon Regional Park. Near Wildcat Canyon Road terminus. Comment
  CAS-BOT-BC115560  Carex tumulicola G. Thomas Robbins 1958-7-19 3908 Contra Costa Pt. Orient, San Francisco Bay, ca. 3/4 mile S of Pt. San Pablo, Comment
  JEPS74802  Castilleja L. R. Heckard, T. I. Chuang and R. C. Bacigalupi 1975-5-7 4010 Contra Costa ca 0.5 mi e Pinole (just e of Interstate 80, along main route of Santa Fe RR) Comment
  UC1050822  Castilleja affinis N. Floy Bracelin 1941-6-1 1350 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  RSA516598  Castilleja affinis R. C. Bacigalupi, G. Thomas Robbins 1956-5-11 5643 Contra Costa Near summit of Hampton Road grade, on the Pinole Creek side, over hill north of Bear Creek and leading to Briones Valley School (which is not in Briones Valley). 221 Comment
  JEPS15237  Castilleja affinis subsp. affinis Rimo Bacigalupi with G. Thomas Robbins 1956-5-11 5643 Contra Costa near summit of Hampton Road grade (on the Pinole Creek side, over hill n of Bear Creek and leading to Briones Valley School (which is not in Briones Valley)) 220 Comment
  JEPS19387  Castilleja affinis subsp. affinis G. Thomas Robbins 1937-4-17 119 Contra Costa near Point Richmond 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
  JEPS65198  Castilleja affinis subsp. affinis L. R. Heckard 1971-4-15 2469 Contra Costa e of Mt. Diablo (along Morgan Territory road, 7 mi n of Morgan Territory road intersection with Manning road) 487 Comment
  JEPS75506  Castilleja affinis subsp. affinis P. F. Yorks 1974-5-19 161 Contra Costa ca 1.9 km s Bear Creek Rd on Hampton Rd in Hampton Rd Natural Reserve (n of Briones Reservoir) 200 Comment
  UC64217  Castilleja affinis subsp. affinis H. M. Hall 1900-3-23 Contra Costa San Pablo Creek; San Francisco Bay Region Comment
  RSA0029778  Castilleja applegatei subsp. martinii Barbara J. Ertter 2000-7-29 17446 Contra Costa Donner Basin on north side of Mount Diablo, Falls Trail south of Wild Oat Canyon. 488 Comment
  JEPS100151  Castilleja attenuata G. Smick 2003-4-8 GAS 125 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS19440  Castilleja densiflora subsp. densiflora Rimo Bacigalupi with G. T. Robbins 1956-5-11 5640 Contra Costa .33 mi e Pinole (between State Highway 4 (Franklin Canyon Rd) and Santa Fe Ry. right-of-way, 0.25 mi e of junction of this rd with U.S. Hwy 40) 22 Comment
  UC1481545  Castilleja densiflora subsp. densiflora Neil Havlik 1980-5-14 917 Contra Costa e side Pt. Pinole Regional Shoreline Comment
  CDA15239  Castilleja exserta G. F. Hrusa, D. Crowe 1998-5-8 14370 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg near shore of San Joaquin River. Comment
  CHSC24847  Castilleja exserta M. A. Callahan 1976-4-11 10 Contra Costa Top of ridfe 140 m. ene of house at 1976 Mohawk Dr. Pleasant Hill. 152 Comment
  UC2070594  Castilleja exserta Barbara Ertter with Steve Matson 2003-3-15 18101 Contra Costa Black Diamond Mines Regional Preserve, west ridge of Rose Hill. Comment
  CHSC116613  Castilleja exserta subsp. exserta Lowell Ahart; Josephine Guardino 2016-4-19 20779 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
  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
  JEPS75507  Castilleja foliolosa P. F. Yorks 1974-5-19 162 Contra Costa ca 1.6 km s Bear Creek Rd on Hampton Rd in Hampton Road Natural Reserve (n of Briones Reservoir) 180 Comment
  UC1377744  Castilleja foliolosa W. J. Dress 1951-3-16 3054 Contra Costa about 1 mi e Berkeley (along Fish Ranch Road) Comment
  SEINET5542767  Castilleja foliolosa H. S. Gentry 1931-1 53 Contra Costa Collected near Buckle Point, Mount Diablo. Comment
  UC2028150  Castilleja foliolosa Barbara Ertter 1998-4-4 15963 Contra Costa Shell Ridge Open Space northwest of Mount Diablo and Indian Valley School. Comment
  JEPS48749  Castilleja subinclusa subsp. franciscana H. M. Wheeler 1944-1-16 27511 Contra Costa Upper San Leandro Canyon Oakland Hills, Moraga Ridge Comment
  SEINET10582750  Castilleja wightii Lawrence R. Heckard 1973-6-6 Heckard 3421 Contra Costa Ravine behind La Moine Park (Richmond). 122 Comment
  CAS-BOT-BC41035  Caulanthus flavescens Mary L. Bowerman 1935-4-22 2879 Contra Costa Mount Diablo. North Road 2 miles from North Gate. 213 Comment
  CDA24865  Caulanthus flavescens Jim Jokerst 1989-3-31 3078 Contra Costa East of creek in Brushy Creek Canyon. 0 Comment
  CAS-BOT-BC40512  Caulanthus lasiophyllus Bolander 1863-1-1 s.n. Contra Costa San Pablo Landing. Comment
  UC2070556  Caulanthus lasiophyllus Barbara Ertter with David Gowen and Mike Park and Victoria Seidman 2004-4-20 18360 Contra Costa Eagle Peak Trail on east side of Twin Peaks, north side of Mount Diablo. Comment
  SEINET3292741 Image available Ceanothus Craig Davis 1970-7-8 D- 168 Contra Costa Growing along roadcut in open areas under power lines on Manzanita Drive in Oakland Hills, in shallow sandy soil. 427 Comment
  UCD111741  Ceanothus cuneatus W. Ebeling 1929-3-19 s.n. Contra Costa Mount Diablo. Comment
  PASA1643  Ceanothus cuneatus Annetta Carter 1929-3-31 Contra Costa Hills north of Mt. Diablo, near Clayton Comment
  JEPS42089  Ceanothus cuneatus var. cuneatus W. L. Jepson 1923-3-11 9847 Contra Costa Black Hills Mt. Diablo Comment
  UC18269  Ceanothus cuneatus var. cuneatus State Survey 1862-5-7 1062 Contra Costa summit of Mt. Diablo Comment
  UC692592  Ceanothus cuneatus var. cuneatus Mary L. Bowerman 1932-9-3 1531 Contra Costa Muir Area, Mount Diablo 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
  UCD159458  Centaurea calcitrapa D. S. Park; K. Yeo 2010-8-7 212 Contra Costa Mare Island. Along Railroad Rd. Growing next to old railroads w/ Cichorium, parsnip. Shrubby. Road blocked. 8 Comment
  HSC5243  Centaurea melitensis Greg Bos 1963-4-14 77 Contra Costa Bayshore freeway at Central Ave.; Richmond Flat Area 1 Comment
  RSA721533  Centaurea melitensis Mary L. Bowerman 1994-6-19 s.n. Contra Costa Mount Diablo, Muir Area. adjacent to road Comment
  UC691371  Centaurea solstitialis Mary L. Bowerman 1938-10-10 3725 Contra Costa 3 mi below junction South Road; Mount Diablo 624 Comment
  CAS-BOT-BC288876  Centromadia parryi subsp. congdonii L. R. Abrams 1910-10-9 4360 Contra Costa Between San Ramon and Dublin Comment
  JEPS95217  Centromadia parryi subsp. congdonii R. E. Preston 1998-10-9 1180 Contra Costa Collier Canyon and adjacent valleys, in valley bottom, lower slopes, and saddles. 228 Comment
  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
  CAS-BOT-BC288877  Centromadia parryi subsp. congdonii David D. Keck 1933-11-2 2610 Contra Costa San Ramon, Cow Creek Canyon Rd, 0.5 mile from turnoff Comment
  CAS-BOT-BC288878  Centromadia parryi subsp. congdonii David D. Keck 1933-11-2 2610 Contra Costa San Ramon, Cow Creek Canyon Rd, 0.5 mile from turnoff Comment
  CAS-BOT-BC288881  Centromadia parryi subsp. congdonii David D. Keck 1933-11-2 2611 Contra Costa 2.7 miles N of Walnut Creek Comment
  CAS-BOT-BC279109  Centromadia pungens subsp. laevis H. D. Ripley; R. C. Barneby 1954-5-1 11340 Contra Costa 1 mi. s. of Byron Hot Springs 15 Comment
  UC912272  Centromadia pungens subsp. pungens H. L. Mason 1929-9-21 5438 Contra Costa Marsh Creek Road 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-BC279191  Centromadia pungens subsp. pungens Niall McCarten; V. I. Dains 1986-1-1 04131748 Contra Costa E. of Byron Hot Springs Rd. Comment
  UC1819017  Centromadia pungens subsp. pungens Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14679 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay; packed ground around Tank 14 in center of hillside. Comment
  CAS-BOT-BC222902  Cephalanthus occidentalis Virginia I. Dains; Walter Knight 1986-8-8 5465 Contra Costa Jct Rock S1 & Werner Cut Comment
  UC1039525  Cephalanthus occidentalis var. californicus H. L. Mason 1929-9-21 5447 Contra Costa 1 mi from Borden Highway junction with road to Antioch Comment
  UC691122  Cercocarpus betuloides var. betuloides Mary L. Bowerman 1931-3-7 548 Contra Costa summit of Meridian Peak, Mount Diablo Meridian Peak; Mount Diablo, Meridian Peak Comment
  JEPS103081  Cestrum parqui Marck Menke 1998-12-25 30 Contra Costa S of Martinez (along upper Alhambra Creek beside Alhambra Creek Trail); Briones Regional Park Comment
  CAS-BOT-BC284220  Chaenactis glabriuscula var. megacephala Volney Rattan 1879-1-1 s.n. Contra Costa Antioch Comment
  UC2062626  Chamaesyce maculata Barbara Ertter with John Ginochio 2002-6-1 17945 Contra Costa Ginochio house on south side of North Gate Road on NW base of Mount Diablo, lower Arroyo del Cerro. Comment
  UC692715  Chamaesyce ocellata Mary L. Bowerman 1932-8-27 1517 Contra Costa between Turtle Rock and pond to the south Comment
  JEPS111952  Chamaesyce serpens D. G. Kelch 2004-7-9 04 .301 Contra Costa McEwen Road McEwen marsh. McEwen Road North of Cummings Skyway 130 Comment
  JEPS111956  Chamaesyce serpens D. G. Kelch 2004-9-2 04 .343 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Martinez (Ozol) 22 Comment
  UC2031491  Cheilanthes Barbara Ertter with David Gowen 2014-4-12 21718 Contra Costa On north side of Prospectors Gap Road ca 1 mile east of Mount Diablo summit, burnt in previous year's fire Comment
  CAS-BOT-BC70279  Cheilanthes intertexta Alice Eastwood 1915-5-30 4528 Contra Costa Mt. Diablo Comment
  JEPS111799  Chenopodium murale D. G. Kelch 2005-3-13 05 .46 Contra Costa Crockett - weedy area under Zampa Bridge 4 Comment
  CDA3133  Chenopodium vulvaria D. G. Kelch, A. G. Murdock 2005-7-11 5 .459 Contra Costa Carquinez Strait Region; Crockett - Edwards Canyon. Edwards Creek Staging Area. Comment
  CAS-BOT-BC497666  Chlorogalum pomeridianum Mary L. Bowerman 1930-6-5 239 . Contra Costa Mount Diablo: North Road, 2.9 mi from North Gate 243 Comment
  UC691956  Chlorogalum pomeridianum var. pomeridianum Mary L. Bowerman 1930-6-5 239 Contra Costa North Road 2.9 mi from North Gate Mount Diablo; Mount Diablo 243 Comment
  UC1136020  Chorizanthe membranacea C. M. Belshaw 1936-5-8 2057 Contra Costa se slope Mount Diablo; Mount Diablo Quad. Comment
  UC692213  Chorizanthe membranacea Mary L. Bowerman 1938-5-28 3636 Contra Costa North Road 4.7 mi from North Gate (Mount Diablo); Mount Diablo 411 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
  OBI3376  Chrysolepis chrysophylla var. minor Neil Havlik 1969-7-18 501 Contra Costa Moraga Ridge, east of Oakland 335 Comment
  UCD110095  Chrysolepis chrysophylla var. minor Beecher Crampton 1957-11-20 4652 Contra Costa Alameda County line. Between Round and Redwood Regional Parks, Berkeley Hills. Comment
  CHSC75054  Cichorium intybus Roger Thom 1987-5-26 16 Contra Costa 1900 block of Geary Rd. Walnut Creek 30 Comment
  UC1119189  Cirsium cymosum var. cymosum C. M. Belshaw 1936-5-7 2050 Contra Costa 2 mi n of Danville; Mt. Diablo Quadrangle 243 Comment
  UC1953204  Cirsium occidentale David Keil with Barbara Ertter et al. 2000-6-18 28815 B Contra Costa Mount Diablo State Park. Lower part of Jumper [Juniper] Trail above Laurel Dell picnic area. Comment
  OBI63081  Cirsium occidentale var. californicum R. K. Brummitt, J. Strother, & B. Baldwin, B. Baldwin 1997-5-27 19612 Contra Costa Mt Diablo, W side, near Juniper camp ground 800 Comment
  UC1607628  Cirsium occidentale var. venustum Barbara Ertter, Lynne Hosley 1992-8-29 11265 Contra Costa E of Mount Diablo (Prairie Falcon trail); Morgan Territory Regional Preserve Comment
  UC691382  Cirsium occidentale var. venustum Mary L. Bowerman 1930-6-18 348 Contra Costa Dan Cook Canyon Mount Diablo, Dan Cook (Rock City) Canyon Comment
  UC30830  Cirsium occidentale var. venustum W. G. Klee Contra Costa Comment
  CDA1530  Cirsium quercetorum M. K. Bellue 1954-5-1 s.n. Contra Costa Concord. Comment
  POM248733  Cirsium quercetorum J. T. Howell 1938-6-30 13940 Contra Costa Berkeley Hills on NE slope near head of Wildcat Canyon. Comment
Read comments
Nov 27 2009
  UC1782176  Citrullus colocynthis var. lanatus Rudolf Schmid 2003-9-13 2003 -15 Contra Costa vacant lot, 24 Edwin Dr., Kensington 169 Comment
  RSA757051  Citrullus colocynthis var. lanatus Rudolf Schmid 2003-9-13 2003 -15 Contra Costa Vacant lot, 24 Edwin Drive, Kensington 169 Comment
  JEPS99586  Clarkia biloba Mary Bowerman 1995-7-2 Contra Costa Mount Diablo, foot trail between Back Canyon and Donner Canyon. In Donner side of ridge. Comment
  UC692438  Clarkia biloba Mary L. Bowerman 1930-6-22 355 Contra Costa Mitchell Canyon Mount Diablo Comment
  UCD21831  Clarkia biloba C. Thayer 1994-8-1 s.n. Contra Costa West side of Lafayette Ridge, Lafayette. Comment
  CDA38052  Clarkia concinna subsp. concinna A. G. Murdock 2003-6-24 117 Contra Costa Carquinez Strait; Vaca Canyon; Alhambra Valley Rd on south bank. Comment
  UC634661  Clarkia concinna subsp. concinna David R. Goddard 1927-5-23 170 Contra Costa San Pablo Creek Canyon Comment
  RSA0031307  Clarkia purpurea Barbara Ertter 2000-5-14 16996 Contra Costa Lower Donner Canyon on north side of Mount Diablo, on Hetherington Trail. 274 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-BC163672  Clarkia purpurea subsp. quadrivulnera John Thomas Howell 1931-5-12 6483 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC163675  Clarkia purpurea subsp. quadrivulnera Rimo Bacigalupi 1926-4-30 1358 Contra Costa Mt. Diablo 548 Comment
  UC1122405  Clarkia purpurea subsp. quadrivulnera C. M. Belshaw 1936-5-8 2053 Contra Costa 1 3/4 mi ssw Mt. Diablo summit (near plot 4); Mt. Diablo Quadrangle Comment
  CAS-BOT-BC163673  Clarkia purpurea subsp. quadrivulnera L. R. Abrams 1921-5-26 8048 Contra Costa At spring 4 1/2 mi from Summit, Mt. Diablo 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
  UC113995  Clarkia rubicunda Katharine Brandegee 1908-7-3 Contra Costa n side Point Isabel (type locality) Comment
  SEINET4149808  Clarkia rubicunda subsp. blasdalei K. Brandegee 1908-7-3 s.n. Contra Costa Point Isabel, N side a few feet above water, exact type locality Comment
  RSA297008  Clarkia unguiculata W. L. Jepson 1919-6-8 8325 Contra Costa Mt. Diablo Comment
  UC765869  Clarkia unguiculata R. F. Hoover 1937-5-14 2110 Contra Costa Antioch sand-dunes Comment
  RSA448454  Clarkia unguiculata E. E. Stanford 1930-5-24 1510 Contra Costa Marsh Creek Canyon. Comment
  SEINET10492200  Clarkia unguiculata Tim Holtsford 1992-6-13 Holtsford 920613 -1 Contra Costa Morgan territory rd, se of concord, 1.35 mi s of marsh creek rd (clayton rd), 0.1 Mi n of shale cliff court. Roadside pop, n-facing slope with oaks, digger Pines, poison oak. Most flowering over, fruits still green. Comment
  CHSC93813  Claytonia exigua subsp. exigua K. L. Chambers 1977-4-1 4266 Contra Costa Mt. Diablo. On trail to Deer Flat from the summit road, ca. 1/8 mile above Deer Flat. Comment
  UC692544  Claytonia exigua subsp. exigua Mary L. Bowerman 1932-3-12 1110 Contra Costa Alamo Canyon (e-facing bank 15 ft above the stream) Alamo Canyon; Mount Diablo 350 Comment
  CAS-BOT-BC439169  Claytonia exigua subsp. exigua W. H. Brewer 1862-5-12 1082 Contra Costa Monte [Mount] Diablo Comment
  CAS-BOT-BC439170  Claytonia exigua subsp. exigua Alice Eastwood 1915-5-30 4532 Contra Costa Unspecified Comment
  JEPS48653  Claytonia parviflora subsp. parviflora Elsa Kraeger 1926-3-3 Contra Costa along road to summit of Mt. Diablo; Mt. Diablo Comment
  UC1745431  Claytonia parviflora subsp. parviflora Annetta M. Carter, Leo Bowerman 1935-6-1 872 Contra Costa Mt. Diablo. N-facing slope of main ridge running W from peak. 975 Comment
  UC692537  Claytonia parviflora subsp. parviflora Mary L. Bowerman 1933-6-14 2276 Contra Costa e of Knob-cone Point; Mount Diablo, Inner Black Hills Comment
  UC692542  Claytonia parviflora subsp. parviflora Mary L. Bowerman 1932-2-28 1090 Contra Costa ridge e Rhine Canyon (e side about 150 ft above Curry Canyon); Mount Diablo Comment
  CAS-BOT-BC440075  Claytonia perfoliata subsp. perfoliata John Thomas Howell 1931-3-10 5755 Contra Costa East side of Mt. Diablo 7 miles from Clayton on Livermore road Comment
  CAS-BOT-BC443683  Claytonia perfoliata subsp. perfoliata Walter Knight 1965-3-1 904 Contra Costa Antioch dunes Comment
  SEINET194968 Image available Claytonia perfoliata subsp. perfoliata A. A. Heller 1908-4-17 8909 Contra Costa Tracey. 10 Comment
  UC692539  Claytonia perfoliata subsp. perfoliata Mary L. Bowerman 1932-3-12 1111 Contra Costa Alamo Canyon; Mount Diablo 350 Comment
  UC725855  Claytonia perfoliata subsp. perfoliata A. A. Heller 1908-4-17 8909 Contra Costa Tracy 10 Comment
  CAS-BOT-BC440072  Claytonia perfoliata subsp. perfoliata Willis Ball 1975-2-23 444 Contra Costa Contra Loma Regional Park. In area #1. In flat area ca. 150 yds w of main parking lot. 30 Comment
  CAS-BOT-BC440073  Claytonia perfoliata subsp. perfoliata Mary L. Bowerman 1932-3-6 1099 Contra Costa Mount Diablo. Sycamore Ridge Comment
  UC1050211  Clematis flammula N. Floy Bracelin 1941-10-13 1703 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC91357  Clematis lasiantha V. Rattan 1883-4-1 s.n. Contra Costa Martinez. Comment
  UC2031506  Clematis lasiantha Barbara Ertter with Travis Columbus 1990-6-10 9104 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill ridge ENE of Briones Peak Comment
  UC692098  Clematis ligusticifolia Mary L. Bowerman 1930-8-24 436 Contra Costa near rd. Mitchell Canyon; Mt. Diablo, Mitchell Canyon Comment
  JEPS112470  Clinopodium douglasii D. G. Kelch 2005-5-1 05 .184 Contra Costa Crockett - Edwards Canyon 150 Comment
  RSA0028269  Clinopodium vulgare Barbara Ertter, David Gowen 2012-6-9 21018 Contra Costa Lower Vollmer Peak Trail paralleling South Drive, southeastern Tilden Park in Berkeley Hills. 426 Comment
  UC1980320  Clinopodium vulgare Barbara Ertter with David Gowen 2011-10-6 20919 Contra Costa Tilden Regional Park in hills east of Berkeley, lower Vollmer Peak Trail southeast of Big Spring picnic area Comment
  UCSC006802  Collinsia Randall Morgan 1988-4-29 1151 Contra Costa Scree at NW slope of Twin Peaks, Mt. Diablo Comment
  UCD102371  Collinsia sparsiflora Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Burma Road at Mount Diablo. 470 Comment
  POM203034  Collinsia sparsiflora var. collina J. T. Howell 1934-4-8 11810 Contra Costa 7 miles from Clayton on road to Livermore. Comment
  UC1196815  Collinsia sparsiflora var. sparsiflora J. P. Tracy 1900-3-24 627 Contra Costa near Point Richmond; Region about San Francisco Bay 3 Comment
  UC908741  Collomia heterophylla Herbert L. Mason 1928-4-15 4361 Contra Costa woods along trail Moraga Ridge Comment
  UCD164881  Conium maculatum Henry House 1995-5-20 1995- 13 Contra Costa Adjacent to Walnut Blvd., approximately 1.25 km south of Marsh Creek Road. 30 Comment
  CDA3510  Consolida ambigua O. Moss 1970-6-3 Contra Costa Empire Mine Road, Brentwood. 0 Comment
  CHSC75080  Convolvulus arvensis Roger Thom 1987-5-13 8 Contra Costa Calif. State University Hayward's Contra Costa Campus. 3100 Oak Park Blvd. Pleasant Hill. 30 Comment
  JEPS99954  Conyza bonariensis A. Langston 2003-9-16 AL 89 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2036956  Conyza bonariensis Mary L. Bowerman 1946-2-10 4082 Contra Costa Near C.C.C. Camp, Dan Cook Canyon, Mt. Diablo. Comment
  UC2028517  Conyza canadensis Barbara Ertter 1996-11-24 15422 Contra Costa West side of Mount Diablo, upstream from Pine Pond along Stage Road in Pine Canyon, floodplain at junction with Dusty Road Comment
  UC1005958  Coprosma baueri N. Floy Bracelin 1942-5-10 2071 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS78633  Cordylanthus mollis subsp. mollis Walter Knight and Neal Havlik 1979-10-7 3415 Contra Costa in marsh along tidal inlet Point Pinole Regional Shoreline (e end of shoreline) 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
  NY68296  Cordylanthus nidularius J. T. Howell 1942-7-19 17044 Contra Costa Near of Deer Flat, Mt. Diablo. Comment
Read comments
Jul 18 2011
  UC2070532  Cordylanthus pilosus Barbara Ertter with Dan Norris 2000-12-3 Contra Costa Mount Diablo, Camp Force area SE of Curry Point. Comment
  CDA42363  Cordylanthus pilosus subsp. pilosus D. G. Kelch, Vince Guise 2012-7-26 12 .23 Contra Costa Carquinez Strait.; Martinez. Summit of Shady Glen Rd on sandstone outcrop. Comment
  JEPS6802  Cordylanthus pilosus subsp. pilosus Mary L. Bowerman 1931-9-20 1045 Contra Costa near Rock City (Rock City Canyon, N side); Mount Diablo Comment
  CAS-BOT-BC287940  Coreopsis calliopsidea Dr. Kellogg No date on label 63 Contra Costa Unspecified Comment
  CAS-BOT-BC287145  Coreopsis stillmanii Brandegee No date on label s.n. Contra Costa Mt Diablo Comment
  CDA38583  Cornus sericea D. G. Kelch 2003-8-13 3 .132 Contra Costa Carquinez Strait; Pinole Creek. Comment
  UC70644  Cornus sericea subsp. sericea Jos. Burtt Davy 1895-7-13 Contra Costa Moraga Valley, Jack Hayes Canyon Oakland Hills, Moraga Valley, Jack Hayes Canyon Comment
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Jun 8 2011
  LA40446  Cornus sericea subsp. sericea J. A. Ewan; 1936-7-5 9720 Contra Costa Reservoir road, Wildcat Creek Comment
  UC651290  Coronopus didymus Ira L. Wiggins 1930-4-18 4595 Contra Costa e end of Jersey Island, Fallow cornfield Jersey Island Comment
  CAS-BOT-BC169515  Corylus cornuta subsp. californica Alice Eastwood 1914-3-6 s.n. Contra Costa Redwood Canyon Comment
  JEPS111824  Corylus cornuta var. californica A. G. Murdock 2004-4-30 261 Contra Costa Vaca Canyon 165 Comment
  UC1622291  Cotoneaster lacteus Barbara Ertter 1997-1-5 15432 Contra Costa at Lime Ridge between Walnut Creek and Clayton (Ygnacio Valley Road); Lime Ridge, Ygnacio Valley Road Comment
  UC2029109  Cotula australis Barbara Ertter 1990-5-16 8992 Contra Costa South El Cerrito, corner of San Pablo Avenue and Carlson Blvd. Comment
  JEPS111528  Cotula coronopifolia D. G. Kelch 2005-5-5 05 .212b Contra Costa Point Pinole - Giant Marsh Giant Salt Marsh 3 Comment
  JEPS111659  Cotula coronopifolia A. G. Murdock 2004-3-19 232 Contra Costa Hercules - Carbon 50 Comment
  JEPS99543  Crassula aquatica Mary Bowerman 1975-9-14 Contra Costa Mount Diablo, Chase Pond. 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
  JEPS111820  Crassula connata A. G. Murdock 2004-2-12 209 Contra Costa Martinez - Franklin Hills 95 Comment
  RSA0068476  Crassula connata Katie Gallagher, Nick Jensen 2014-4-26 202 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  UC606743  Crassula connata var. subsimplex Edward Lee 1936-4-19 1967 Contra Costa bluff at n.e. corner of island Red Rock Comment
  CAS-BOT-BC427924  Crassula solieri Brandegee No date on label s.n. Contra Costa Antioch Comment
  SD241801  Crassula tillaea Barbara Ertter, Gary Schoolcraft 1996-4-7 14578 Contra Costa Molate Beach Park on San Francisco Bay north of San Rafael Bridge; bare edge of lawn-covered bluff. Comment
  JEPS78617  Cressa truxillensis Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3289 Contra Costa Brown Island, Sandy Knoll Comment
  UC762281  Crocanthemum scoparium var. vulgare R. F. Hoover 1939-5-20 4108 Contra Costa Head of Markley Canyon Comment
  JEPS52457  Croton californicus W. L. Jepson 1923-10-4 10211 Contra Costa Antioch Comment
  RSA289534  Croton californicus Edward Lee, Annetta Carter 1935-8-17 1626 Contra Costa Antioch. Comment
  SEINET7716179  Croton californicus Chesnut, Drew 1889-4-18 Contra Costa Antioch Comment
  RSA720790  Crypsis schoenoides Barbara Ertter, Mary L. Bowerman, Lisa Schultheis, Kevin Hintsa 1995-10-22 14532 Contra Costa Three Spring Trail on northeast side of Mt. Diablo, south of crest of Marsh Creek Rd. Comment
  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
  JEPS108226  Cryptantha decipiens David Gowen 2005-5-6 282 Contra Costa Mt. Diablo State Park. Rocky outcrops on the south side of North Peak. Comment
  JEPS67601  Cryptantha flaccida Mary L. Bowerman 1930-6-7 269 Contra Costa Meridian Peak summit Mount Diablo Comment
  UC24677  Cryptantha flaccida F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo 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
  CDA33483  Cuscuta japonica Fonseca/Yost 2008-11-2 PDR# 1503841 Contra Costa San Pablo; 2336 Shawn Dr. 0 Comment
  CDA33504  Cuscuta japonica R. Fonseca 2008-10-27 PDR# 1455391 Contra Costa Rodeo; 2 California St. 0 Comment
  CDA7755  Cuscuta japonica Niang 2008-2-13 PDR# 1454473 Contra Costa Carquinez Strait; Rodeo, 2 California St. 0 Comment
  UC2032851  Cuscuta pacifica Doran, Andrew Scott 2012-3-20 722 Contra Costa Northeast part of Brooks Island, on trail to beach along spit. Comment
  UC1197867  Cuscuta subinclusa Joseph P. Tracy 1932-9-10 10789 B Contra Costa Franklin Canyon 152 Comment
  UC562483  Cuscuta subinclusa Joseph P. Tracy 1932-9-10 10789 Contra Costa Franklin Canyon 152 Comment
  UC562677  Cuscuta subinclusa Joseph P. Tracy 1932-9-10 10789 Contra Costa Franklin Canyon 152 Comment
  UC23280  Cuscuta subinclusa Bolander 1863-1 2436 Contra Costa Moraga Valley Comment
  CDA6262  Cymbalaria muralis D. G. Kelch, A. G. Murdock 2005-5-23 5 .376 Contra Costa Carquinez Strait Region; Crockett - Crolona Heights. 6th Street at Lillian Street, Crockett. Comment
  UC1779712  Cymbalaria muralis Rudolf Schmid 1999-5-21 1999 -5 Contra Costa Private residence of Rudolf Schmid, 16 Edwn Dr. Kensington, CA 94707-1022, the xeriscape garden establised spring and summer, 1968. 170 Comment
  UC2013066  Cynara cardunculus Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14927 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  CDA4495  Cynara scolymus R. Langston 1980-6-26 Contra Costa At junction of Arlington and Marin Avenues, San Pablo. 0 Comment
  CHSC23352  Cynodon dactylon Willis Ball 1975-5-15 527 Contra Costa Contra Loma Regional Park. In area #1 ca. 3 yds w of restroom facility at s end of reservoir. In lawn by beach area. 30 Comment
  CDA34471  Cynoglossum grande D. G. Kelch 2006-2-25 6 .083 Contra Costa Carquinez Strait; Crockett. Edwards Canyon. Comment
  UC1063875  Cynoglossum grande R. W. Lundh 1933-3-14 213 Contra Costa 3 1/2 mi. n. Lafayette (Canada del Hambre); Concord Quad., Canada del Hambre 152 Comment
  JEPS99550  Cynosurus echinatus Mary Bowerman 1976-6-24 Contra Costa Mount Diablo, inner Black Hills just west of meridian and south of crest. Comment
  SEINET10861237  Cynosurus echinatus M. Bowerman 1975-6-7 Bowerman s.n. Contra Costa Mount Diablo. Big Spring. Shady. Bay, Canyon Oak. But hard packed, semi open where people and horses come to watering trough (bathtub). Comment
  SD175778  Cyperus difformis D. G. Kelch 2006-9-15 06 474 Contra Costa Shell Ave., Martinez, between Pine St. and Harborview Dr. 56 Comment
  SEINET3840900  Cyperus difformis Unknown 2006-9-15 6 .474 Contra Costa Martinez, Shell Avenue, between Pine Street and Harborview Drive 60 Comment
  SEINET11752107  Cyperus eragrostis Unknown 1940-1 90 Contra Costa banks at upper end of San Leandro Lake near mouth of Redwood Creek 130 Comment
  UCD54038  Cyperus eragrostis Mrs. H. P. Kelley 1916-5-25 s.n. Contra Costa S.P. crossing, San Joaquin River. Comment
  UCD150887  Cyperus esculentus James A. Neilson Jr. 1972-11-2 3615 Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 Comment
  CAS-BOT-BC113937  Cyperus odoratus Walter Knight; Irja Knight 1980-8-26 3769 Contra Costa Hercules. Comment
  CAS-BOT-BC114071  Cyperus squarrosus Walter Knight; Frank Almeda; Joanne Dean; B. Doyle 1978-10-11 3324 Contra Costa Browns Island, Botany Cove. Comment
  UC692117  Cystopteris fragilis Mary L. Bowerman 1933-6-3 2243 Contra Costa summit Mt Diablo 1127 Comment
  SD45084  Cytisus canariensis W. W. Jones 1927-4-5 Contra Costa Crockett Comment
Read comments
Jul 11 2010
  UC641611  Danthonia californica G. L. Stebbins Jr. 1939-5-24 2714 Contra Costa opposite Berkeley Country Club Comment
  RSA0027405  Datura stramonium Barbara Ertter 1999-8-21 16790 Contra Costa Former reservoir upstream from mouth of Mitchell Canyon. Comment
  UC32716  Deinandra corymbosa J. Burtt Davy 1896-1-1 Contra Costa Moraga Pass Comment
  UC2029026  Deinandra corymbosa Barbara Ertter 2002-6-16 17952 Contra Costa Richmond Field Station (UC-Berkeley). Comment
  CAS-BOT-BC294012  Deinandra kelloggii K. Brandegee 1907-5-5 s.n. Contra Costa Near Antioch Comment
  CAS-BOT-BC294013  Deinandra kelloggii Alice Eastwood 1927-5-19 14445 Contra Costa Byron Springs Comment
  CAS-BOT-BC294024  Deinandra kelloggii James I. McMurphy 1908-10-18 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC294015  Deinandra kelloggii Brandegee No date on label s.n. Contra Costa Antioch Comment
  UC691769  Deinandra kelloggii H. L. Mason 1929-3-29 5137 Contra Costa 2 mi above Clayton (Marsh Creek Road) Comment
  CAS-BOT-BC291805  Deinandra lobbii H. M. Hall 1930-6-18 12791 Contra Costa South of Pittsburg Comment
  RSA400096  Delphinium californicum Thekla Mohr 1917-07 3245 Contra Costa Mount Diablo Comment
  UC691947  Delphinium californicum Mary L. Bowerman 1935-5-30 3091 Contra Costa rock slide Mount Diablo, Eagle Point Ridge 350 Comment
  UC691949  Delphinium californicum Mary L. Bowerman 1931-5-16 863 Contra Costa clearing n of road at foot last steep stretch; Mount Diablo, Meridian Peak summit 1143 Comment
  UCD95639  Delphinium californicum P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  LA207422  Delphinium hansenii H. Lewis; Carl Epling 1947-5-4 703 Contra Costa Marsh Creek Road, 5.8 mi. E of Creek Park Rd Comment
  RSA148112  Delphinium hansenii Harlan Lewis, C. Epling 1946-5-5 605 Contra Costa 0.5 miles S of Somersville Comment
  POM300586  Delphinium hesperium Mary L. Bowerman 1931-5-2 786 Contra Costa Foot of Eagle Point ridge: Grassy slope at edge of wooded hill Comment
  SEINET12086747  Delphinium hesperium J. T. Howell 1931-1 6482 Contra Costa North Side of Mt. Diablo Comment
  CAS-BOT-BC10010  Delphinium hesperium subsp. pallescens E. Wright 1917-6-1 S. N. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC10014  Delphinium hesperium subsp. pallescens A. A. Heller 1908-4-17 8906 Contra Costa Hills, three miles south of Antioch,. 18 Comment
  UC912567  Delphinium hesperium subsp. pallescens H. L. Mason 1928-4-29 4423 Contra Costa s slope of mt Mount Diablo, Sycamore Canyon Comment
  UCD102391  Delphinium nudicaule Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Bald Ridge Trail. Bald Ridge. 890 Comment
  UC69615  Delphinium parryi subsp. parryi R. C. Marsh 1900-4-5 Contra Costa Oakley Comment
  JEPS99976  Delphinium patens G. Smick 2003-3-25 GAS 79 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA148120  Delphinium patens Harlan Lewis, C. Epling 1944-5-6 s.n. Contra Costa 5.7 miles S of Marsh Creek Road on the Beck road to Luieruiore. Comment
  CAS-BOT-BC116460  Delphinium patens subsp. patens Miss Mary Leolin Bowerman 1931-3-21 584 Contra Costa Sycamore Canyon, below chaparral on west facing slope Comment
  LA93067  Delphinium recurvatum Lewis; 1963-4-11 1337 Contra Costa Byron Hot Springs Rd Comment
  LA207610  Delphinium recurvatum Carl Epling; G. Miles 1945-3-23 542 Contra Costa 5 mi. W Tracy- Byron Road on rd. to Byron Hot Springs Comment
  LA207638  Delphinium variegatum H. Lewis; Carl Epling 1944-5-6 sn Contra Costa 1 mi. S of Marsh Creek Rd. on the Beck Rd. to Livermore Comment
  UC2070612  Deschampsia cespitosa subsp. holciformis Barbara Ertter with Chris Thayer, Dianne Lake et al. 2001-5-26 17657 Contra Costa Stamm Unit of Antioch Dunes National Wildlife Refuge east of Antioch. Comment
  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
  CDA9487  Deschampsia danthonioides D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .212 Contra Costa Byron Airport. Comment
  UC407375  Deschampsia danthonioides Ira L. Wiggins 1930-4-17 4576 Contra Costa 1/4 mi. s. Byron Comment
  UC650562  Deschampsia danthonioides Ira L. Wiggins 1930-4-17 4576 Contra Costa 1/4 mi. s. Byron Comment
  UCD62510  Deschampsia danthonioides P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CAS-BOT-BC192673  Deschampsia danthonioides Mary L. Bowerman 1935-6-28 3164 Contra Costa Chase Pond 548 Comment
  CAS-BOT-BC192675  Deschampsia danthonioides Walter Knight; Irja Knight; Mary L. Bowerman 1969-6-4 2621 Contra Costa 100 yds west of Chase Pond. Mt. Diablo 554 Comment
  UC615579  Dicentra chrysantha Beryl O. Schreiber 1933-10-5 933 Contra Costa Mount Diablo road; Mount Diablo Comment
  UC692103  Dicentra chrysantha Mary L. Bowerman 1932-9-3 1529 Contra Costa Muir Area; Mount Diablo Comment
  UC400148  Dichelostemma capitatum Ynes Mexia 1929-4-21 2385 Contra Costa Moraga Valley Comment
  UC618200  Dichelostemma capitatum R. F. Hoover 1938-2-21 2756 Contra Costa Point Richmond Comment
  UCD139417  Dichelostemma capitatum subsp. capitatum P. B. Kennedy 1914-3-15 4631 Contra Costa Sunset Cemetery. Comment
  RSA0031305  Dichelostemma congestum Barbara Ertter 2000-5-14 17006 Contra Costa Donner Canyon on north side of Mount Diablo, SW end of Falls Trail between Middle Trail and Donner Creek crossing. 457 Comment
  CAS-BOT-BC502553  Dichelostemma congestum Alice Eastwood 1915-5-30 4474 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC502555  Dichelostemma congestum John Thomas Howell 1933-5-14 11258 Contra Costa Hills east of St. Mary's College Comment
  UC1795853  Dichondra donelliana Barbara Ertter, Gary Schoolcraft 1996-4-7 14574 Contra Costa Point San Pablo in west Richmond, crest of road to yacht harbor, coastal grassland along ridge, scraped roadbed to tower. Comment
  CDA1975  Digitaria sanguinalis D. G. Kelch, A. G. Murdock 2005-6-27 5 .39 Contra Costa Carquinez Strait; 6th Street at Lillian Street, Crockett. Comment
  CDA36457  Dimorphotheca sinuata Deviney 2011-9-1 PDR# 1641230 Contra Costa Brentwood; Balfour Rd. near Fairview Rd. 0 Comment
  CAS-BOT-BC150331  Diplacus aurantiacus E. E. Stanford 1930-5-24 1514 Contra Costa Marsh Creek Canyon Comment
  CAS-BOT-BC121840  Dirca occidentalis Howard E. McMinn 1925-3-30 1402 Contra Costa Near summit Thornhill Road and Skyline Blvd. Comment
  CDA37269  Dirca occidentalis D. G. Kelch 2010-1-17 10 .31-B Contra Costa Carquinez Strait Region; Upper North Fork of Rodeo Creek, immediately west of Cummings Skyway. Comment
  UC565411  Dirca occidentalis Chas. M. Belshaw 1935-3-3 372 Contra Costa shallow draw on ne face Bald Peak; San Pablo Reservoir Comment
  UC723819  Dirca occidentalis Joseph Andorfer Ewan 1934-3-10 8643 Contra Costa creek bottom flat 2 mi below Orinda road bridge; Wildcat Canyon Comment
  LA209793  Dirca occidentalis Joseph Andorfer Ewan; 1936-4-15 9444 -a Contra Costa NE side Bald Peak, San Pablo Ridge Comment
  OBI78486  Dirca occidentalis A. Kay Ketcham 1968-3-21 16 Contra Costa Approx 300 yds S of Neil Havlik #88 at the S end of Charles Lee Tilden Regional Park Comment
  UC3560  Disporum hookeri unknown 1862-5-16 1099 Contra Costa s of Mount Diablo Comment
  UC400146  Disporum hookeri Ynes Mexia 1929-4-21 2387 Contra Costa Moraga Valley Comment
  UC792335  Disporum hookeri J. A. Rattenbury 1948-3-26 104 Contra Costa on s side of highway above creek 1/2 mi e of Oakland Tunnel 213 Comment
  POM194543  Disporum hookeri var. hookeri Ynes Mexia 1929-4-21 2387 Contra Costa Moraga Valley. Comment
  UCD64394  Distichlis spicata var. stolonifera M. Wiesendanger 1926-6-1 1534 Contra Costa Richmond. Comment
  CDA37339  Dittrichia graveolens D. G. Kelch 2010-10-31 10 .444 Contra Costa Valley north of Alhambra Valley Rd., south of Pinole Peak, east of Hercules. Comment
  JEPS21206  Dodecatheon clevelandii subsp. patulum Herbert L. Mason 1925-2-28 1260 Contra Costa 1/2 mi e Rodeo; e of Rodeo Comment
  UC2062624  Dodecatheon clevelandii subsp. patulum Barbara Ertter with Steve Matson 2003-3-15 18109 Contra Costa Black Diamond Mines Regional Preserve, Black Diamond Trail in SW corner of park. Comment
  CHSC21632  Dodecatheon hendersonii Willis Ball 1975-3-9 493 Contra Costa Contra Loma Regional Park. In area #8. On n facing slope near top of hill ca. 550 yds sw of main parking lot ca. 850 yds w of Contra Loma Blvd. 149 Comment
  JEPS112042  Dodecatheon hendersonii A. G. Murdock 2003-2-21 70 Contra Costa Mt. Wanda - Martinez Edge of chaparral, northeastern area of Mt. Wanda property 115 Comment
  UC1618109  Dodecatheon hendersonii Donald G. Nelson 1937-3-30 461 Contra Costa Along Marsh Creek Road between Clayton and Byron Comment
  UC517947  Dodecatheon hendersonii John Thomas Howell 1931-3-10 5756 Contra Costa on Livermore Road 7 mi from Clayton; e side Mt. Diablo, 7 mi from Clayton Comment
  UC22384  Dodecatheon hendersonii H. P. Chandler 1900-3-23 Contra Costa Bryants region of Mount Diablo, Bryants Comment
Read comments
May 4 2007
  SEINET3147636  Downingia insignis L. S. Rose 1940-4-30 40256 Contra Costa 6 mi S of Antioch 30 Comment
  UC1481550  Downingia insignis Neil Havlik 1980-5-10 914 Contra Costa near Antioch (along Deer Valley Rd, 0.25 mi n of Balfour Rd) Comment
  UC924239  Downingia insignis H. S. Reed 1940-4-30 356 a Contra Costa 6 mi s Antioch 15 Comment
  RSA114055  Downingia insignis H. L. Mason 1952-4-14 14267 Contra Costa 3.5 miles S of Byron Comment
  RSA622149  Downingia insignis John A. Churchill 1974-4-15 7441521 Contra Costa Between Route K4 and railroad at Holey Road. Comment
  CAS-BOT-BC159643  Drymocallis glandulosa var. glandulosa Barrett Anderson 1987-4-30 3493 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD. 125 Comment
  JEPS112089  Drymocallis glandulosa var. glandulosa D. G. Kelch 2004-5-2 04 .170 Contra Costa Crockett - Edwards Canyon 125 Comment
  CAS-BOT-BC159645  Drymocallis glandulosa var. glandulosa David D. Keck 1941-6-5 5308 Contra Costa Berkeley Hills, Fish Creek Road, 1/4 mi. W. of east portal of Broadway Tunnel 335 Comment
  UC12532  Drymocallis glandulosa var. wrangelliana Ivar Tidestrom vi, 1895 Contra Costa Crockett Crockett (Edw. Can.) ((Edw. Can.)) Comment
  UC691090  Drymocallis glandulosa var. wrangelliana Mary L. Bowerman 1931-4-19 748 Contra Costa Mitchell Canyon Mount Diablo, Mitchell Canyon Comment
  UC691093  Drymocallis glandulosa var. wrangelliana Mary L. Bowerman 1930-6-18 343 Contra Costa Dan Cook Canyon Mount Diablo, Dan Cook Canyon Comment
  CDA42722  Dryopteris arguta D. G. Kelch 2005-5-1 5 .19 Contra Costa Carquinez Strait; Crockett; Edwards Canyon. Comment
  JEPS111936  Dryopteris arguta D. G. Kelch 2005-5-1 05 .190 Contra Costa Crockett - Edwards Canyon 150 Comment
  UCD150886  Dysphania ambrosioides James A. Neilson Jr. 1972-11-9 s.n. Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 Comment
  UCD150908  Echinochloa crus-galli James A. Neilson Jr. 1972-11-2 3611 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  UC2028516  Echinochloa crus-galli Barbara Ertter 1996-11-24 15421 Contra Costa West side of Mount Diablo, upstream from Pine Pond along Stage Road in Pine Canyon, floodplain at junction with Dusty Road Comment
  CAS-BOT-BC197225  Echinochloa crus-pavonis Walter Knight; Irja Knight 1977-7-28 3149 Contra Costa Black Diamond Coal Mines Regional Preserve. Somersville Townsite Comment
  CDA1988  Echinochloa muricata var. microstachya T. C. Fuller 1964-11-6 12809 Contra Costa Bethel Island. 0 Comment
  RSA0027708  Eclipta prostrata Barbara Ertter 1996-9-19 15298 Contra Costa Antioch Marina, edge of Dow Marsh lands. Comment
  UC1949380  Eichhornia crassipes Barbara Ertter 1990-9-16 9642 Contra Costa Junction of Cypress Road & Jersey Island Road E of Oakley Comment
  UC2013045  Eleocharis parishii Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14918 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek Comment
  UC756633  Elymus G. L. Stebbins Jr. 1946-6-9 3659 Contra Costa 2 mi e El Cerrito (near Mira Vista Country Club) Comment
  POM300590  Elymus X hansenii Mary L. Bowerman 1935-5-25 3073 Contra Costa Meridian Peak, west side of Devil's Pulpit; On edge of outcrop 1082 Comment
  UC691194  Elymus X hansenii Mary L. Bowerman 1935-7-22 3193 Contra Costa Sloan Rd. Mount Diablo, Inner Black Hills (near w end) 533 Comment
  UC2070620  Elymus caput-medusae Barbara Ertter with John Ginochio 2002-6-1 17946 Contra Costa Castle Rock Park at mouth of Pine Canyon, NW foot of Mount Diablo. Comment
  JEPS99567  Elymus elymoides Mary Bowerman 1975-6-7 Contra Costa Mount Diablo, by Big Spring trail. Comment
  UCD61518  Elymus elymoides P. B. Kennedy 1916-5-21 302 Contra Costa Between Diablo and Summit. Comment
  UC756651  Elymus trachycaulus G. L. Stebbins Jr. 1946-6-9 3652 Contra Costa 2 mi e El Cerrito (near Mira Vista Country Club) Comment
  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
  CDA2043  Elytrigia elongata T. C. Fuller 1961-9-13 7001 Contra Costa Hwy J4, ca. 4 miles southeast of Byron. 0 Comment
  RSA128915  Emmenanthe penduliflora Peter H. Raven 1950-7-5 2480 Contra Costa A flat on south side of Mt. Diablo. 1067 Comment
  UC2027955  Epilobium campestre Barbara Ertter with Joanne Kerbavaz 2000-8-20 17502 Contra Costa Frog Pond on southeast side of Mount Diablo. Comment
  UC1745970  Epilobium canum subsp. canum Annetta M. Carter 1933-11-25 419 Contra Costa Mount Diablo 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
  UC1584862  Epilobium ciliatum subsp. ciliatum Jerry Powell 1987-11-1 1509 Contra Costa Point Molate Richmond Comment
  UC1784916  Epilobium ciliatum subsp. ciliatum Barbara Ertter with Laura Fujii 1990-7-21 9401 Contra Costa Briones Regional Park, Briones Hills W of Pleasant Hill, at Bear Creek crossing on Homestead Valley trail 274 Comment
  UC1818995  Epilobium ciliatum subsp. ciliatum Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14632 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; along stream above stable, riparian vegetation. 91 Comment
  UC2070464  Epilobium ciliatum subsp. ciliatum Barbara Ertter, Diane Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10699 Contra Costa Browns Island N of Pittsburg near confluence of Sacramento & San Joaquin rivers opposite Pittsburg Marina. Comment
  JEPS99501  Epilobium minutum Mary L. Bowerman 1978-5-14 Contra Costa Mount Diablo. The old wagon rd. mines trail on E side of Eagle Peak. 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
  UC1789099  Equisetum arvense Barbara Ertter 2005-8-18 18637 Contra Costa San Pablo Reservoir in East Bay Hills, east of San Pablo Dam Road between Richmond and Orinda (EBMUD water storage from Mokelumne River watershed); mudflats left by receding reservoir (being drained for seismic work on dam). Comment
  CAS-BOT-BC204545  Eragrostis curvula George W. Murray 1964-7-24 s.n. Contra Costa 1 to 2 miles east of Clayton, Marsh Creek Road Comment
  UC2028442  Eragrostis mexicana subsp. virescens Barbara Ertter with Chris Thayer 1996-10-25 15365 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park 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
  SEINET11268152  Eragrostis mexicana subsp. virescens Barbara Ertter 1997-8-24 15777 Contra Costa Mount Diablo, Summit Road just above Junction Station.; 0 671 Comment
  UC1818969  Eremocarpus setiger Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa 1995-10-22 14529 Contra Costa Three Springs Trail on northeast side of Mt. Diablo, south of crest of Marsh Creek Rd. southeast of Clayton dried grasslands at base of trail. 304 Comment
  UC1784081  Eriastrum ertterae Barbara Ertter with Tony Morosco 1998-10-18 16441 Contra Costa Lime Ridge Open Space, in saddle SE of microwave towers on summit Comment
Read comments
Oct 13 2013
  JEPS123272  Eriastrum ertterae David Gowen 2005-6-5 404 Contra Costa Lime Ridge Open Space. Hill 724 east of the golf course. Comment
  JEPS19181  Ericameria arborescens W. L. Jepson 1920-9-6 9086 Contra Costa Mt. Diablo Comment
  UC2012979  Ericameria arborescens Barbara Ertter with Brad Olson, Dianne Hake, Seth Adams, et. al. 1994-9-11 13091 Contra Costa Chaparral Sprs addition to Mt. Diablo State Park, north side of Marsh Creek Road at high point southeast of Clayton open oak woodland. Comment
  UC1543101  Ericameria linearifolia Donald G. Nelson 1937-4-18 503 Contra Costa on March Creek Road in canyon between Clayton and Byron (near stream along highway, dry sandy clearing near wood) Comment
  UC1614256  Ericameria linearifolia Charles M. Belshaw 1935-6-10 697 Contra Costa Morgan Territory Rd. e. side of Mt. Diablo Comment
  UC36554  Ericameria linearifolia H. N. Bolander 1866-4-1 6141 Contra Costa Mount Diablo Comment
  UC36562  Ericameria linearifolia State Survey 1054 Contra Costa Mt. Diablo Comment
  UC36564  Ericameria linearifolia F. P. McLean 1875-3-1 Contra Costa Mt. Diablo Comment
  UC31471  Erigeron foliosus var. franciscensis Edw. L. Greene 1892-6-20 Contra Costa Mount Diablo Comment
  RSA93107  Erigeron petrophilus var. petrophilus H. L. Mason 1923-11-12 853 Contra Costa Low rocky slopes of Mt. Diablo Comment
Read comments
Feb 4 2013
  SBBG21151  Eriodictyon californicum V. Haraden 1941-7-18 17 Contra Costa near Nortonville 121 Comment
  UC35509  Eriodictyon californicum F. P. McLean March, 1875 Contra Costa Mt. Diablo Comment
  UC194953  Eriogonum angulosum H. M. Hall 1916-8-17 10276 Contra Costa Deer Valley 182 Comment
  CDA22474  Eriogonum angulosum J. Simmen 1958-11-6 1515 -58 Contra Costa Palm Tract, Brentwood. 0 Comment
  CDA22594  Eriogonum fasciculatum var. foliolosum A. G. Murdock, D. G. Kelch 2004-3-19 233 Contra Costa Carquinez Strait; Hercules - Carbon. Comment
  CAS-BOT-BC250381  Eriogonum gracile Mary L. Bowerman 1932-8-27 1524 Contra Costa Mount Diablo. South of Turtle Rock Comment
  JEPS56891  Eriogonum gracile W. L. Jepson 1898-10-18 Contra Costa Deer Flat Mt. Diablo 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
  UC691087  Eriogonum gracile Mary L. Bowerman 1932-8-27 1524 Contra Costa s Turtle Rock; Mount Diablo Comment
  RSA720837  Eriogonum gracile Barbara J. Ertter, Mary L. Bowerman 1994-6-19 12847 a Contra Costa Mt Diablo State Park east of Walnut Creek, roadside near lower summit parking lot 1128 Comment
  UC1735889  Eriogonum gracile var. gracile Dean W. Taylor 1992-4-16 12388 B Contra Costa S of Byron Hot Springs, in swale draining on E margin of NE1/4 SE1/4 Section 34S of Byron Hot Springs, in swale draining on E margin of NE1/4 SE1/4 Section 34 45 Comment
  UC692048  Eriogonum gracile var. gracile Mary L. Bowerman 1931-9-12 1038 Contra Costa spur jutting into west fork of Mitchell Canyon Mount Diablo, Mitchell Canyon 838 Comment
  UC521769  Eriogonum luteolum var. luteolum Joseph Andorfer Ewan 1933-10-15 8022 Contra Costa sw slope Mt. Diablo Mt. Diablo Comment
  CAS-BOT-BC268916  Eriogonum nudum var. auriculatum Mary L. Bowerman 1932-9-17 1585 Contra Costa Mount Diablo. Donner Canyon, West fork: of west fork 335 Comment
  CAS-BOT-BC268918  Eriogonum nudum var. auriculatum L. R. Abrams 1910-10-8 4340 Contra Costa Mt Diablo 609 Comment
  UC1607640  Eriogonum nudum var. auriculatum Barbara Ertter, Brad Olson 1993-10-30 12285 Contra Costa w junction of San Pablo Avenue and Vista del Rio (at base of steep bluff above railroad tracks; w of Crockett); Carquinez Strait Regional Shoreline Comment
  UC521722  Eriogonum nudum var. auriculatum Joseph Andorfer Ewan 1933-10-15 8032 Contra Costa sw slope Mt. Diablo Mt. Diablo Comment
  UC6583  Eriogonum nudum var. auriculatum Wm. H. Brewer 1861-9-25 841 Contra Costa Mt. Diablo Comment
  UC692046  Eriogonum nudum var. auriculatum Mary L. Bowerman 1931-9-12 1037 Contra Costa Mitchell Canyon, spur jutting out into w fork Mount Diablo 838 Comment
  CAS-BOT-BC268910  Eriogonum nudum var. auriculatum W. H. Brewer 1861-9-25 841 Contra Costa Near Monte [Mount] Diablo, Mission San Jose Comment
  POM300598  Eriogonum nudum var. auriculatum Mary L. Bowerman 1932-9-17 1585 Contra Costa Mount Diablo: Donner Canyon, west fork of west fork 335 Comment
  RSA0029780  Eriogonum nudum var. auriculatum Barbara J. Ertter, Delia Taylor 2003-6-22 18229 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, River View Loop Trail along Somersville Road north of park headquarters. 152 Comment
  UC1167551  Eriogonum nudum var. psychicola R. W. Thorp 1958-8-20 20 Contra Costa Antioch Comment
Read comments
Aug 24 2011
  CAS-BOT-BC269820  Eriogonum nudum var. psychicola Jerry A. Powell 1962-8-19 3082 Contra Costa Ca. 2 miles east of Antioch Comment
  SBBG28221  Eriogonum roseum J. Ewan 1933-10-15 8022 Contra Costa Mt Diablo Comment
  JEPS105714  Eriogonum roseum David Gowen 2004-8-26 156 Contra Costa Black Diamond Mines Regional Preserve; 3/8 mi from parking area on Frederickson Lane, on Old Homestead Loop, just SW of its junction with the Homestead Trail Comment
  UC6491 Image available Eriogonum truncatum W. H. Brewer 1862-5-29 1186 Contra Costa Camp 71, Marsh's Ranch, Contra Costa Co. Comment
  JEPS108318  Eriogonum umbellatum var. bahiiforme David Gowen 2005-5-29 399 Contra Costa West of Morgan Territory Rd. and the main entrance to Morgan Territory Regional Preserve. Rocky area west of summit of hill 2581 (Tassajara Pk.?). Comment
  CAS-BOT-BC262350  Eriogonum vimineum John Thomas Howell 1955-8-24 30903 Contra Costa Near summit of South Peak, Mt. Diablo 1158 Comment
  CAS-BOT-BC298509  Eriophyllum confertiflorum H. E. McMinn 1923-6-18 1152 Contra Costa Horn Canon Comment
  UC691724  Eriophyllum confertiflorum var. confertiflorum Mary L. Bowerman 1930-6-5 254 Contra Costa w road <= n road written above> 5.8 mi from entrance; Mount Diablo Comment
  JEPS28851  Eriophyllum jepsonii unknown 1896-5-29 Contra Costa Mt. Diablo Comment
  UC31674  Eriophyllum lanatum var. achilleoides W. L. Jepson May 22 1891-May 23 1891 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC300974  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1930-6-14 326 Contra Costa Mount Diablo. Near summit Comment
  UC1252143  Eriophyllum staechadifolium Dr. Jerry Powell 1964-6-7 412 Contra Costa nw Richmond; Point Molate Comment
  UC2032830  Eriophyllum staechadifolium Doran, Andrew Scott 2012-3-20 700 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  CDA29179  Erodium botrys D. G. Kelch 2008-6-15 8 .246 Contra Costa Carquinez Strait; Crockett hills, S of Cummings Skyway, W of Crockett Blvd. Comment
  RSA181410  Erodium cicutarium James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  UC17073  Erodium macrophyllum State Survey 1862-5-10 1067 Contra Costa Kirker Pass Comment
  CHSC75094  Erodium moschatum Roger Thom 1987-5-26 17 Contra Costa 1900 block of Geary Rd. Walnut Creek. 30 Comment
  UC1487288  Eryngium aristulatum var. aristulatum Yusuf Sheikh 1974-5-5 587 Contra Costa 2.1 mi. s.e. of Byron Post sign on rd. J4 (3.1 mi. s.e. of intersection with Camino Diablo) Comment
  UC1487296  Eryngium aristulatum var. aristulatum Yusuf Sheikh 1975-7-8 600 Contra Costa on State Hwy. 4 0.7 mi. w. of junction w/ Railroad Ave. Comment
  POM133545  Eryngium aristulatum var. aristulatum Katherine Brandegee 1907-5-16 s.n. Contra Costa [Unspecified] Comment
  CDA38328  Eryngium armatum D. G. Kelch 2007-4-1 7 .108 Contra Costa Carquinez Strait; Pt. Pinole. Comment
  JEPS121010  Eryngium armatum D. G. Kelch 2007-6-16 07 .464 Contra Costa Pt. Pinole, N spur of Park, near shore Comment
  CDA32925  Eryngium jepsonii D. G. Kelch 2009-5-24 9 .294 Contra Costa Carquinez Strait; Carquinez Loop Trail S of Ozol, S-SW of Martinez, nr Wolcott Ln . Comment
  UC2062646  Eryngium jepsonii Barbara Ertter 2002-11-11 18081 Contra Costa Round Valley Regional Preserve east of Mount Diablo. Comment
  CDA9503  Eryngium spinosepalum D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .23 Contra Costa Byron Airport. Comment
  UC1190973  Eryngium vaseyi Lincoln Constance, Reino Alava and Rimo Bacigalupi 1958-6-6 3661 Contra Costa 3 mi. s.e. Byron; San Joaquin Valley 10 Comment
  UC1487327  Eryngium vaseyi Yusuf Sheikh 1974-5-5 587 B Contra Costa 2.1 mi. s.e. of Byron Post sign on rd. J4 Byron (3.1 mi. s.e. of intersection with Camino Diablo) Comment
  UC764567  Eryngium vaseyi Alice Eastwood and John Thomas Howell 1935-4-7 2121 Contra Costa near Byron (on Marsh Creek Rd.) Comment
  CAS-BOT-BC40766  Erysimum capitatum Alice Eastwood; John Thomas Howell 1936-4-19 2151 Contra Costa Antioch sand hills. Comment
  CAS-BOT-BC40769  Erysimum capitatum G. B. Rossbach; R. P. Rossbach 1938-6-5 858 b Contra Costa Along tidal estuary of San Joaquin River just east of Antioch. Comment
  UC691089  Erysimum capitatum Mary L. Bowerman 1930-6-14 322 Contra Costa open places near summit (nw exposure); Mount Diablo, Meridian Peak Comment
  CAS-BOT-BC40758  Erysimum capitatum G. B. Rossbach; R. P. Rossbach 1938-6-5 859 Contra Costa Near summit Mount Diablo. Comment
  CDA33846  Erysimum capitatum D. G. Kelch 2010-5-15 10 .116 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 Comment
  NY32657  Erysimum capitatum subsp. angustatum A. A. Heller 1908-4-16 8898 Contra Costa Sand hills east of Antioch. 22.9 Comment
  RSA0008586  Erysimum capitatum var. angustatum James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  LA204363  Erysimum capitatum var. capitatum Herbert L. Mason; 1933-4-9 7189 Contra Costa E of Antioch along San Joaquin River 12 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
  UC2032838 Image available Eschscholzia californica Doran, Andrew Scott 2012-3-20 708 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  CAS-BOT-BC402982  Eschscholzia californica R. Bacigalupi 1922-9-24 s.n. Contra Costa Road between Concord and Clayton Comment
  CAS-BOT-BC402985  Eschscholzia californica A. A. Heller 1908-4-16 8891 Contra Costa Hills east of Antioch 22 Comment
  UC692191  Eschscholzia californica Mary L. Bowerman 1930-6-28 386 Contra Costa near road above junction; Mount Diablo Comment
  JEPS111510  Eucrypta chrysanthemifolia var. chrysanthemifolia Dean G. Kelch and Andrew G. Murdock 2005-5-13 05 .273 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 22 Comment
  UC24009  Eucrypta chrysanthemifolia var. chrysanthemifolia Jos. Burtt Davy 1901-4-21 6923 Contra Costa Wildcat Canyon Comment
  UC880659  Eucrypta chrysanthemifolia var. chrysanthemifolia Lewis S. Rose 1941-5-15 41232 Contra Costa w slope Mt. Diablo 396 Comment
  UC570798  Euphorbia crenulata H. L. Mason 1926-3-7 2701 Contra Costa Mount Diablo Comment
  JEPS100098  Euphorbia oblongata A. Langston 2003-6-19 AL 93 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1276068  Euphorbia oblongata T. C. Fuller 1959-6-25 2679 Contra Costa ca 4 mi w Martinez; Alhambra Valley Comment
  CDA4842  Euphorbia oblongata Margaret Bellue, A. Seeley Jun 1955 Contra Costa Highway 4, near Concord. 0 Comment
  CDA4844  Euphorbia oblongata T. C. Fuller 1961-7-6 6585 Contra Costa Carquinez Strait; Alhambra Valley, Highway 4, 0.5 mile west of Glen Frazier Station, ca. 4 miles west of Martinez. 0 Comment
  RSA95829  Euphorbia ocellata subsp. ocellata L. S. Rose 1953-10-12 53096 Contra Costa Mt. Diablo. 381 Comment
  UC2032808  Euphorbia peplus Doran, Andrew Scott 2012-3-20 678 Contra Costa Brooks island loading dock, North side of island. Comment
  CHSC97888  Euphorbia portlandica Niang 2006-6-20 PDR 1373984 Contra Costa Annie's Annuals, 801 Chesley Ave. Richmond. Comment
  UC2062611  Euphorbia spathulata Barbara Ertter 2003-3-28 18134 Contra Costa Round Valley Regional Preserve, mid Hardy Canyon along High Creek. Comment
  CDA4937  Euthamia occidentalis Niang, Jeffery 2007-8-1 PDR# 1455280 Contra Costa Concord; Canal at Walnut Ave, near Clayton Rd. 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
  CAS-BOT-BC458288  Euthamia occidentalis Walter Knight; Irja Knight 1978-8-14 3139 Contra Costa Browns Island Comment
  UC692366  Festuca californica Mary L. Bowerman 1931-4-25 757 Contra Costa Mount Diablo, near junction of s and w roads Mount Diablo Comment
  UC2028409  Festuca microstachys Barbara Ertter with Richard K. Brummitt 1998-5-16 16088 Contra Costa Lower Donner Canyon on north base of Mount Diablo, ca. 1/2 miles south of Donner cabin site 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
  CDA33826  Filago pyramidata D. G. Kelch 2010-5-15 10 .125 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 Comment
  JEPS100135  Foeniculum vulgare A. Langston 2003-7-28 AL 79 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC12242  Fragaria vesca W. H. Brewer 1862-5-23 1145 Contra Costa se of Mount Diablo 609 Comment
  CAS-BOT-BC223860  Frankenia salina L. R. Abrams 1916-7-1 5730 Contra Costa Near Martinez Comment
  UCD99590  Frankenia salina John Thomas Howell; Gordon H. True 1972-6-29 48919 Contra Costa on Byron Hot Springs Road southeast of Byron. Comment
  POM300679  Fraxinus dipetala Mary L. Bowerman 1935-6-1 3104 Contra Costa Mount Diablo: First small ridge east of Mitchell-Pine divide 976 Comment
  UC1606339  Fraxinus latifolia Barbara Ertter, Brad Olson 1991-9-28 10844 Contra Costa between Orinda and El Sobrante (s end of San Pablo Reservoir); San Pablo Reservoir 94 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
  UC692004  Fritillaria affinis Mary L. Bowerman 1933-5-9 2053 Contra Costa Mount Diablo, Mountain House Canyon Mountain House Canyon; Mount Diablo, Mountain House Canyon 670 Comment
  CAS-BOT-BC136072  Fritillaria affinis Dean William Taylor 1971-3-28 971 Contra Costa Along Morgan Territory Road 304 Comment
  CAS-BOT-BC136075  Fritillaria affinis Mary L. Bowerman 1932-3-23 1129 Contra Costa Tiny canyon east of Donner Canyon - Mt. Diablo 274 Comment
  SEINET12045027  Fritillaria affinis L. S. Rose 1934-1 34047 Contra Costa Mt. Diablo Comment
  UC1134594  Fritillaria biflora C. M. Belshaw 1936-5-12 2108 Contra Costa 5 mi s of Round Valley 487 Comment
  UCD95119  Fumaria capreolata Barbara Ertter 1999-3-21 16486 Contra Costa Miller Knox Regional Park, near Point Richmond. Southeast of Richmond Ramblers building. Comment
  JEPS52813  Galium andrewsii subsp. gatense Lauramay T. Dempster 1965-5-2 4089 Contra Costa just above Bridlepath Campground; Mt. Diablo Comment
  JEPS75515  Galium aparine P. F. Yorks 1976-4-11 505 a Contra Costa on Hampton Rd ca 1.4 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Preserve Comment
  UC1618369  Galium murale Barbara Ertter, Chris Thayer 1993-5-7 11715 Contra Costa 1/2 mi n of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land e of Tilden Park (s of Wildcat Canyon Road); East Bay Municipal Utilities District land Comment
  UC2027989  Galium murale Barbara Ertter 1998-5-3 16031 Contra Costa Pine Ridge summit of Wall Point Road at southwest base of Mount Diablo. Comment
  UCD121835  Galium nuttallii Laurence S. Jones 1934-4-8 s.n. Contra Costa West slope of Mt. Diablo. 609 Comment
  CAS-BOT-BC304345  Gamochaeta pensylvanica Gordon H. True 1975-6-4 7869 Contra Costa Tilden Regional Park Botanic Garden, Tilden Regional Park, Wildcat Canyon, Berkeley 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-BC200634  Garrya elliptica John Thomas Howell 1925-9-12 1437 Contra Costa Oakland Hills at head of San Leandro Canyon Comment
  UC692506  Garrya elliptica Mary L. Bowerman 1933-3-11 1746 Contra Costa Fossil Ridge Mount Diablo (knoll s of 1778 point, of crest of hill) Comment
  UC692508  Garrya elliptica Mary L. Bowerman 1932-1-30 1081 Contra Costa Inner Black Hills Mount Diablo (nw corner of basin of ne fork of Sycamore Creek) Comment
  CAS-BOT-BC200629  Garrya elliptica Mary L. Bowerman 1933-3-11 1747 Contra Costa Fossil Ridge, knoll south of 1778 Comment
  RSA721733  Garrya flavescens subsp. flavescens Barbara Ertter, Holly C. Forbes 1996-2-11 14549 Contra Costa North side Mount Diablo; Murchio Gap on Median Ridge Road. 732 Comment
  CAS-BOT-BC169946  Garrya fremontii L. R. Abrams 1910-10-8 4353 Contra Costa Mt. Diablo summit 1158 Comment
  CAS-BOT-BC169947  Garrya fremontii Mary L. Bowerman 1930-6-7 s.n. Contra Costa Meridian Peak Summit Comment
  CAS-BOT-BC169948  Garrya fremontii Lewis S. Rose 1954-6-29 54084 Contra Costa Mt. Diablo, summit 1170 Comment
  SEINET3558664 Image available Garrya fremontii Lewis S. Rose 1934-2-28 34041 Contra Costa Summit Mount Diablo. Comment
  JEPS100016  Gastridium ventricosum G. Smick 2003-4-29 GAS 153 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CDA34087  Genista monspessulana D. G. Kelch, D. A. Weinstein 2011-3-5 11 .032-B Contra Costa Carqionez Strait Region.; Pt. Pinole. Comment
  RSA0028181  Geranium carolinianum Mary L. Bowerman 1935-5-25 3076 Contra Costa Rhine Canyon. 915 Comment
  RSA0029465  Geranium purpureum Barbara Ertter 2000-5-14 17012 Contra Costa Mount Diablo Regional Park, Falls Trail at Donner Creek crossing. 488 Comment
  OBI72045  Geranium rotundifolium Barbara Ertter 1996-6-4 14684 Contra Costa Tilden Regional Park in hills E of Berkeley, restoration site NE of jctn of Grizzly Peak Blvd & Golf Course Dr Comment
  RSA0029580  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
  UCD103510  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
  JEPS69431  Gilia achilleifolia subsp. achilleifolia W. L. Jepson 1899-4-19 15066 Contra Costa Las Trampas Ridge Comment
  UC909027  Gilia achilleifolia subsp. multicaulis Herbert L. Mason 1934-3-31 8053 Contra Costa 11 mi s Marsh Creek Road (on road from Marsh Creek to Livermore); 11 mi s Marsh Creek Road, rd from Marsh Creek to Livermore 609 Comment
  JEPS69577  Gilia capitata subsp. staminea W. L. Jepson 1931-4-5 15723 Contra Costa vicinity San Francisco Bay (Nortonville); vicin San Francisco Bay, Nortonville Comment
  RSA566427  Gilia capitata subsp. staminea Peter L. Morrell, Donna S. Krause 1993-5-16 239 Contra Costa Contra Costa County, along sides of raod 100m W of 1701 Wilbur Ave, Antioch, betw Southern Pacific tracks and San Joaquin River (0.5 miles W of Hwy 4/160). Comment
  UC517980  Gilia capitata subsp. staminea Lewis S. Rose 1933-4-17 33090 Contra Costa Antioch Comment
  RSA469347  Gilia capitata subsp. staminea H. de Forest 1930-5-6 s.n. Contra Costa [Unspecified] Comment
  SD234478  Gilia clivorum Peter L. Morrell, N. Takebayashi. 1995-5-21 472 Contra Costa Central Coast: S of Clayton in Mitchell Canyon, above the banks of Mitchell Creek and beneath Eagle Peak (Clayton 7.5' Q) 399 Comment
  UC2027799  Gilia clivorum Barbara Ertter with Mary Bowerman, Lisa Schultheis 1995-3-31 13946 Contra Costa Mount Diablo State Park, steep west-facing bank with outcrops near weir at mouth of Mitchell Canyon Comment
  UCR124271  Gilia multicaulis L. S. Rose 1934-3-21 34067 Contra Costa 3-6 mi east of Clayton Comment
  RSA49035  Gilia tricolor Verne Grant, Alva Grant 1949-3-30 8640 Contra Costa 4 miles west of Byron on Marsh Creek road. Comment
  RSA63722  Gilia tricolor Verne Grant, Alva Grant 1949-3-30 8640 Contra Costa 4 miles west of Byron on Marsh Creek road. Comment
  SEINET10464449  Githopsis diffusa subsp. robusta Bowerman 1933-6-7 BOWERMAN 2260 Contra Costa North Peak; Bare rocks by register Comment
  SEINET10906041  Githopsis diffusa subsp. robusta Bowerman 1931-5-16 BOWERMAN 851 Contra Costa Meridian Peak summit Comment
  UC691591  Githopsis specularioides Mary L. Bowerman 1935-5-18 3034 Contra Costa Meridian Peak, n of the summit parking area Mount Diablo 1066 Comment
  CDA983  Glyceria declinata D. G. Kelch 2002-5-4 2 .01 Contra Costa East Bay; Wildcat Canyon Park. Comment
  UCD84951  Glyceria leptostachya Chuck Hughes 2010-3-29 223 Contra Costa About 0.4 mile southeast of Vasco Road. 123 Comment
  UC692667  Glycyrrhiza lepidota Mary L. Bowerman 1931-5-13 842 Contra Costa canyon floor 1 mi above sulphur spring; Mount Diablo, Pine Canyon Comment
  CDA35615  Gnaphalium californicum I. Godwyn 2011-5-12 PDR# 1649778 Contra Costa Richmond; Wildcat Canyon Regional Park, near McBryde Ave. 0 Comment
  CDA6000  Gnaphalium canescens subsp. beneolens D. G. Kelch, A. G. Murdock 2004-7-16 4 .318 Contra Costa Carquinez Strait Region; Martinez-South: Pine Street entrance to Route 4 heading west. Comment
  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
  CAS-BOT-BC303201  Gnaphalium palustre J. (Germany) Bauer 1851-5-1 s.n. Contra Costa At Mt Diablo [Ad Mond Diabalo] Comment
  LA203655  Grindelia camporum Lewis S. Rose; 1930-7-22 sn Contra Costa Antioch Bridge Comment
  CAS-BOT-BC305219  Grindelia hirsutula Alice Eastwood 1915-6-21 4730 Contra Costa San Leandro Comment
  CAS-BOT-BC305233  Grindelia hirsutula Evelina Cannon 1895-12-25 s.n. Contra Costa Pinole Pt. Comment
  CAS-BOT-BC305246  Grindelia hirsutula L. R. Abrams 1910-10-9 4357 Contra Costa Between San Ramon and Dublin Comment
  JEPS100140  Grindelia hirsutula G. Smick 2003-5-30 GAS 204 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS120269  Grindelia hirsutula Barbara Ertter with David Gowen 2012-6-9 21023 Contra Costa at junction of Seaview Trail and road into EBMUD land north of Vollmer Peak, southeastern Tilden Park in Berkeley Hills Comment
  UC1118559  Grindelia hirsutula H. S. Yates 1934-9-2 4079 Contra Costa Wildcat Creek Concord Quad., Wildcat Creek 304 Comment
  UC1599361  Grindelia hirsutula Katharine Brandegee 1911-7-6 Contra Costa Pt. Isabel Pt. Isabel (near RR crossing) Comment
  CAS-BOT-BC305235  Grindelia hirsutula L. R. Abrams 1917-9-13 6729 Contra Costa Patterson Pass Comment
  CAS-BOT-BC305240  Grindelia hirsutula John Thomas Howell 1929-9-21 4387 Contra Costa 4 miles west of Clayton Comment
  CAS-BOT-BC305247  Grindelia hirsutula R. E. Frenkel 1963-8-18 267 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  CAS-BOT-BC305248  Grindelia hirsutula John Thomas Howell 1930-9-28 5486 Contra Costa Tunnel Road near Oak Spring Comment
  UC10934  Guillenia flavescens W. H. Brewer Contra Costa near Mt. Diablo Comment
  UC691137  Guillenia flavescens Mary L. Bowerman 1935-4-17 2842 Contra Costa 2 mi from West road (=North Rd.) entrance (ridge w of chaparral, immediately e of section line); Mount Diablo 304 Comment
  JEPS54093  Guillenia lasiophylla W. L. Jepson 1921-5-22 9219 Contra Costa s slope Mt. Diablo 792 Comment
  UC10944  Guillenia lasiophylla W. H. Brewer 1862-4-24 987 Contra Costa Camp 68 Martinez Comment
  UC10955  Guillenia lasiophylla Ivar Tidestrom 1893-4-15 Contra Costa Sheep Island Comment
  CAS-BOT-BC304582  Gutierrezia californica James McMurphy 1908-10-18 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC304583  Gutierrezia californica Walter Knight 1965-9-7 1172 Contra Costa Overlooking San Joaquin River. Antioch sand dunes Comment
  SJSU14141  Gutierrezia californica D. B. Gschwend 1975-10-18 Contra Costa 3 mi up Nortonville Rd from Kirker Pass Rd, S of Pittsbutg 487 Comment
Read comments
Aug 17 2011
  UC912309  Gutierrezia californica Herbert L. Mason 1929-9-21 5435 Contra Costa 3 mi above Clayton (Marsh Creek Road) Comment
  UCD85227  Hainardia cylindrica Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  CDA5197  Hedera helix D. G. Kelch, A. G. Murdock 2005-5-23 5 .373 Contra Costa Carquinez Strait Region; Crockett - Crolona Heights. 6th Street at Lillian Street, Crockett. Comment
  CDA6437  Helenium puberulum D. G. Kelch, A. G. Murdock 2003-8-13 3 .134 Contra Costa Carquinez Strait; Pinole Creek. Comment
  UC1192223  Helenium puberulum Malcolm A. Nobs and S. Galen Smith 1949-7-8 949 Contra Costa 4 mi n of Kingston (Otto's Black Bass Resort); Otto's Black Bass Resort Comment
  UCD132756  Helenium puberulum Malcolm A. Nobs; S. Galen Smith 1949-7-8 949 Contra Costa Otto's Black Bass Resort, 4 miles N of Kingston. Comment
  CAS-BOT-BC305329  Helianthella castanea L. R. Abrams 1921-5-25 8028 Contra Costa At summit, Mt. Diablo Comment
  JEPS112743  Helianthella castanea Dean W. Taylor 2001-3-21 17614 Contra Costa Mount Diablo; Mount Diablo State Park, near Balancing Rock (ridge forming southerly watershed boundary Curry Creek Canyon), along fire road descending from ridge into Devils Slide (East Fork Sycamore Creek) 457 Comment
  JEPS96539  Helianthella castanea Dean W. Taylor 1993-5-2 13419 Contra Costa hillside above Selby Siding, ca. 1 mile W of Carquinez Bridge, near BM 378 106 Comment
  POM203709  Helianthella castanea J. T. Howell 1931-5-12 6475 Contra Costa Nortonville Comment
  UC88881  Helianthella castanea Alice Eastwood 1897-5-31 Contra Costa Mt. Diablo Comment
  UCD132760  Helianthella castanea H. A. Stout; T. C. Wainwright 1980-3-27 1 Contra Costa Mallory Ranch, around 1 mile east of Morgan Territory road. 621 Comment
  CAS-BOT-BC223917  Helianthemum scoparium Mary L. Bowerman 1933-3-25 1775 Contra Costa Mount Diablo. Emmons Canyon: (Diablo Stock Farm (Stone Valley) canyon) Comment
  POM300646  Helianthemum scoparium var. scoparium Mary L. Bowerman 1932-4-9 1332 Contra Costa Ridge to Wall Point, from near Rock City Comment
  CAS-BOT-BC305593  Helianthus californicus L. R. Abrams 1910-10-8 4341 Contra Costa Mt. Diablo 609 Comment
  CAS-BOT-BC305605  Helianthus californicus Walter Knight; Joanne Dean 1978-8-14 3182 Contra Costa Browns Island Comment
  UC1795662  Helianthus californicus Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14628 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; along stream above stable, riparian vegetation. 91 Comment
  UC2027833  Helianthus gracilentus Barbara Ertter with John Ginochio and Mary Bowerman 2001-5-8 17632 Contra Costa Northwest flank of Mount Diablo, Ginochio property north of park boundary, upper end of Government Road on Long Ridge. 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
  CDA33069  Heliotropium curassavicum D. G. Kelch 2010-10-5 10 .422 Contra Costa The Delta; Just east of Antioch bridge. Comment
  UC1063893  Heliotropium curassavicum H. S. Yates 1934-9-2 4073 Contra Costa 1 mi. n.e. Danville; Mt. Diablo Quad. 450 Comment
  UC650558  Heliotropium curassavicum Ira L. Wiggins 1930-4-18 4606 Contra Costa Jersey Isl. Comment
  UC201231  Hemizonia congesta subsp. lutescens H. M. Hall 1914-8-23 9860 Contra Costa 2 km nw San Pablo 9 Comment
  UC1594202  Hemizonia congesta subsp. luzulifolia Jerry Powell 1992-6-17 1649 Contra Costa Richmond Field Station 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
  CAS-BOT-BC314860  Hemizonia congesta subsp. luzulifolia R. F. Hoover 1966-8-31 9947 Contra Costa North of Livermore Valley on Highland Road Comment
  CAS-BOT-BC314868  Hemizonia congesta subsp. luzulifolia Jean L. Pawek 1964-8-29 608 Contra Costa Tilden Park Comment
  CDA33546  Hemizonia fitchii Fisher, Deviney 2010-6-2 PDR# 1645252 Contra Costa Byron; Armstrong Road Extension 1/3 mile southeast of Vasco Rd. Comment
  SEINET2030221 Image available Hemizonia fitchii L. S. Rose 1941-10-13 1298 Contra Costa 1 mile east of Walnut Creek 50 Comment
  RSA81518  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1909-9-24 s.n. Contra Costa San Ramon. Comment
  CDA15242  Hemizonia pungens G. F. Hrusa, D. Crowe 1998-5-8 14373 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  CDA31366  Hemizonia pungens D. G. Kelch 2010-10-29 10 .441 Contra Costa Carquinez Strait; Rankin park just west of Martinez adjacent to parking lot. Comment
  UC901876  Heracleum lanatum L. Constance 1950-6-25 3326 Contra Costa s. rim Wildcat Canyon (Tilden Park); , Tilden Park 365 Comment
  JEPS12781  Hesperevax sparsiflora var. sparsiflora Rimo Bacigalupi with G. T. Robbins 1955-5-4 4974 Contra Costa pasture near summit Kirker Pass (along old road (not summit of new freeway bypass)) 274 Comment
  JEPS100155  Hesperocnide tenella G. Smick 2003-4-29 GAS 155 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC167441  Hesperolinon breweri Mary L. Bowerman 1930-6-22 356 Contra Costa Mitchell Canyon. Mt Diable Comment
  UC692694  Hesperolinon breweri Mary L. Bowerman 1935-6-15 3137 Contra Costa Eagle Point Ridge w 2632; Mount Diablo 762 Comment
  UC692703  Hesperolinon breweri Mary L. Bowerman 1931-5-21 888 Contra Costa Curry-Cave Point trail Mount Diablo (bank just above streambed) 350 Comment
  CAS-BOT-BC175984  Hesperolinon californicum Mary L. Bowerman 1933-6-14 2279 Contra Costa Inner Black Hills west of 1970. Mount Diablo Comment
  UC692665  Hesperolinon californicum Mary L. Bowerman 1933-6-14 2279 Contra Costa Inner Black Hills w 1970; Mount Diablo Comment
  POM149311  Hesperomecon linearis C. F. Baker 1903-4-25 2802 Contra Costa Antioch. Comment
  CAS-BOT-BC422500  Hesperomecon linearis Walter Knight; Irja Knight 1977-6-13 s.n. Contra Costa Antioch sand dunes, Little Corral site, Wilber Avenue. Comment
  RSA445543  Hesperomecon linearis H. de Forest 1930-05 s.n. Contra Costa [No location data on label] Comment
  UC691519  Heterocodon rariflorum Mary L. Bowerman 1935-6-15 3133 Contra Costa Mitchell Canyon; Mount Diablo 640 Comment
  SEINET10460684  Heterocodon rariflorum Bowerman BOWERMAN 3133 Contra Costa MT DIABLO 2100 Comment
  JEPS45024  Heteromeles arbutifolia W. L. Jepson 1921-11-19 9516 Contra Costa Mt. Diablo Comment
  OBI62818  Heteromeles arbutifolia John Osborne 1970-11-21 14 Contra Costa 3173 Somerset Dr., Lafayette 76 Comment
Read comments
Sep 18 2016
  SEINET3840819  Heteromeles arbutifolia Unknown 2006-6-23 6 .322C Contra Costa West Valona, West of Zampa Bridge above San Pablo avenue, along the small stream draining north into the Western end of the Carquinez Strait 91 Comment
  CAS-BOT-BC311160  Heterotheca sessiliflora subsp. bolanderi John Thomas Howell 1930-7-31 5416 Contra Costa North Berkeley Hills Comment
  CAS-BOT-BC311213  Heterotheca sessiliflora subsp. echioides Walter Knight 1965-9-7 1166 Contra Costa Antioch sand dunes Comment
  POM180746  Heterotheca sessiliflora subsp. echioides J. T. Howell 1930-7-31 5416 Contra Costa North Berkeley Hills. Comment
  CAS-BOT-BC26197  Heterotheca sessiliflora var. bolanderioides J. C. Semple; B. Suripto; T. Ahmed 1990-8-16 9339 Contra Costa Charles Tilden Reg. Park, Vollmer Peak Comment
  RSA0010319  Heterotheca sessiliflora var. bolanderioides J. C. Semple, B. A. Suripto, T. Ahmed 1990-8-16 9339 Contra Costa Charles Tilden Reg. Park, Vollmer Peak. Comment
  UC692352  Heuchera micrantha var. erubescens Mary L. Bowerman 1933-6-14 2283 Contra Costa inner Black Hills (second gully w of n spur); Mount Diablo, Black Hills Comment
  JEPS129821  Holcus lanatus Dean G. Kelch 2006-6-23 06 .320 Contra Costa West Valona. West of the Zampa Bridge above San Pablo Ave. Comment
  JEPS12900  Holocarpha heermannii L. S. Rose 1941-10-13 41465 Contra Costa 1 mi e of Walnut Creek 50 Comment
  UC1598596  Holocarpha heermannii John Thomas Howell 1955-8-24 30901 Contra Costa near Diablo Country Club (s base of Mt. Diablo); Mt. Diablo Comment
  UC4897718  Holocarpha heermannii Lewis S. Rose 1934-9-9 34462 Contra Costa 9 mi ne Danville Comment
  UC89060  Holocarpha heermannii T. S. Brandegee 1887-5-1 Contra Costa near Antioch Comment
  CAS-BOT-BC320201  Holocarpha heermannii John Thomas Howell 1955-8-24 30901 Contra Costa Near Diablo Country Club Comment
  UC1795651  Holocarpha heermannii Barbara Ertter, Brad Olson, Diane Lake, Seth Adams, et al. 1994-9-11 13096 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
  UC2012985  Holocarpha heermannii Barbara Ertter with Lisa Schultheis 1996-9-2 15276 Contra Costa South side of Mount Diablo, west end of Blackhawk Ridge. Comment
  UC691541  Holocarpha heermannii Mary L. Bowerman 1930-6-3 232 Contra Costa Comment
  UC1428043  Holocarpha macradenia David J. Powers 1974-10-6 1001 Contra Costa 100-300 ft e Hwy 80 (100-300 yd s Appian Way); Pinole Comment
  CAS-BOT-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-BC320225  Holocarpha macradenia Neil Havlik 1979-10-27 s.n. Contra Costa In Pinole, S.W. of intersection of Appian Way and I-80 Comment
  UCD133201  Holocarpha macradenia Walter Knight; Irja Knight 1978-8-8 3101 Contra Costa southeast corner of Interstate 80 and Appian Way, 1 mile north of El Sobrante. Comment
  CAS-BOT-BC320241  Holocarpha obconica Margi Oard 1988-10-9 s.n. Contra Costa Ca. 2 miles east of junction with Deer Valley Road along north side of Marsh Creek Road Comment
  POM298344  Holocarpha obconica subsp. autumnalis D. D. Keck 1933-11-2 2621 Contra Costa Deer Valley, 0.5 mile S of road to Brentwood. Comment
  RSA22274  Holocarpha obconica subsp. obconica L. S. Rose 1938-10-28 38309 Contra Costa Marsh Creek, 8 miles W of Byron. 61 Comment
  CAS-BOT-BC320324  Holocarpha virgata L. S. Rose 1941-10-16 41467 Contra Costa 2 miles west of Byron 33 Comment
  JEPS112072  Holodiscus discolor A. G. Murdock 2004-5-28 274 Contra Costa Pinole Peak 205 Comment
  SEINET4090611  Holodiscus discolor B. C. Templeton 1962-1 sn Contra Costa Mountain Diablo. Comment
  CHSC114266  Hordeum brachyantherum D. G. Kelch; Troy MacGregor 2009-5-10 09 .288 Contra Costa Carquinez Strait: Fernandez Ranch in valley bottom along Christie Rd. 76 Comment
  CAS-BOT-BC281255  Hordeum brachyantherum subsp. brachyantherum R. E. Frenkel 1964-4-29 461 Contra Costa 0.2 mile west of Bixler Road on Balfour Road 6 Comment
  CDA32929  Hordeum marinum subsp. gussoneanum D. G. Kelch 2009-5-24 9 .301 Contra Costa Carquinez Strait; S of Ozol, W/SW of Martinez. Comment
  SD211511  Hordeum marinum subsp. gussoneanum Barbara Ertter, Jim Jokerst and Dave Magney 1989-4-5 8121 Contra Costa Southeast Contra Costa County: Alkalai sink West and adjacent to Clifton Court Forebay, circa15 airmiles Southwest of Stockton Comment
  SEINET4182779 Image available Hordeum marinum subsp. gussoneanum Barbara Ertter, Jim Jokerst, Dave Magney 1989-4-5 8140 Contra Costa Alkali sink West and adjacent Clifton Court Forebay, circa 15 air miles Southwest of Stockton 0 Comment
  UC1950125  Hordeum marinum subsp. gussoneanum Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8121 Contra Costa alkali sink W and adjacent to Clifton Court Forebay, ca 15 airmiles SW of Stockton Comment
  UC606740  Hordeum murinum subsp. leporinum Edward Lee 1936-4-19 1962 Contra Costa ne corner island (Red Rock, San Francisco Bay); San Francisco Bay, Red Rock, ne corner island Comment
  CAS-BOT-BC532054  Horkelia californica var. frondosa V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley Comment
  CAS-BOT-BC206138  Hosackia crassifolia Alice Eastwood 1915-5-30 4524 Contra Costa Mt. Diablo Comment
  UC454506  Hydrocotyle verticillata I. J. Condit 1908-8-19 Contra Costa Antioch Comment
  RSA691938  Hypericum calycinum Barbara Ertter 1993-6-25 11907 Contra Costa Oakland-Berkeley Hills, Grizzly Peak Boulevard ca 1/4 miles south of Tilden miniature steam trains (1/4 miles south of junction of Lomas Cantadas), mixed scrub forest. 488 Comment
  JEPS127045  Hypochaeris glabra Lowell Ahart, Josephine Guardino 2016-4-19 20765 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
  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
  UC691451  Hypochaeris glabra Mary L. Bowerman 1933-5-8 2035 Contra Costa Comment
  UC1584689  Hypochaeris radicata Jerry Powell 1987-7-14 1506 Contra Costa Point Molate Beach Comment
  CAS-BOT-BC311406  Hypochaeris radicata Goodwin; Bellue 1932-5-6 s.n. Contra Costa Unspecified Comment
  CAS-BOT-BC311407  Hypochaeris radicata Goodwin; Bellue 1932-5-6 s.n. Contra Costa Unspecified 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
  CDA9229  Iris pseudacorus D. G. Kelch 1991-5-1 s.n. Contra Costa CA Delta; Pittsburg Marina Comment
  UC692079  Isoetes howellii Mary L. Bowerman 1935-7-22 3187 a Contra Costa s. side Meridian Peak (w. end Hidden Pond); Mt. Diablo, Hidden Pond 518 Comment
  CAS-BOT-BC324752  Iva axillaris Evelina Cannon 1896-5-22 s.n. Contra Costa Giant Station Comment
  CAS-BOT-BC324755  Iva axillaris James McMurphy 1909-5-20 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC324753  Iva axillaris Morris Halperin 1930-5-20 s.n. Contra Costa Hoffman Ranch, Brentwood Comment
  SEINET11261292  Jaumea carnosa Barbara Ertter, Elizabeth Neese 1988-10-15 7975 Contra Costa Salicornia marsh W of I-580 in El Cerrito, W side along Rydin Road N of Central Avenue.; 0 Comment
  CAS-BOT-BC340120  Jaumea carnosa Walter Knight; Joanne Dean 1978-8-14 3129 Contra Costa Browns Island Comment
  CHSC93646  Juglans californica var. hindsii Paul Kirk; Joe Callizo 2001-10-8 7 Contra Costa City of Lafayette Community Park, along Grizzly Cr. drainage on W side of Las Trampas Cr., 30 m downstream from culvert under Silverado Dr. 128 Comment
  JEPS100045  Juglans californica var. hindsii G. Smick 2003-5-13 GAS 192 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC583156  Juglans californica var. hindsii Lewis S. Rose 1936-4-24 36140 Contra Costa 5 mi e Clayton; Marsh Creek 60 Comment
  CAS-BOT-BC102303  Juglans hindsii D. E. Stone; B. L. Stone 2004-7-9 4286 Contra Costa Just inside entrance to northern perimeter of Mount Diablo State Park, at terminus of Mitchell Canyon Rd south of 172 Comment
  JEPS31657  Juglans hindsii C. Ritchie Bell 1951-5-11 Contra Costa 1 1/4 mi ne of St. Mary's College (Las Trampas Creek); Las Trampas Creek 167 Comment
  JEPS127666  Juncus ambiguus Barbara Ertter with David Gowen and Michael Park 2017-5-2 22810 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  UCD146717  Juncus ambiguus G. F. Hrusa; D. Crowe 1998-5-8 14363 Contra Costa Sacramento-San Joaquin River Delta. At east end of Dow Chemical property at Pittsburg. 10 Comment
  SEINET3840813  Juncus arcticus subsp. littoralis Unknown 2006-7-14 6 .326 Contra Costa East of Martinez, Along Marine Vista avenue immediately west of Pacheco Slough 1 Comment
  JEPS112451  Juncus balticus D. G. Kelch 2005-4-24 05 .180 Contra Costa Franklin Canyon Franklin Canyon. Collier Hill. West Carbon. 16 Comment
  JEPS121014  Juncus balticus D. G. Kelch 2006-7-14 06 .326 Contra Costa Along Marine Vista Ave immediately west of Pacheco Slough. East of Martinez Comment
  IRVC14055  Juncus balticus J. Lanier 1967-5-21 s.n. Contra Costa Tice Valley Comment
  UC1818993  Juncus balticus Barbara Ertter, Mary Bowerman et al. 1995-5-7 14030 a Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, wet ground around small pond west of road in grassy flat. Comment
  JEPS112440  Juncus bufonius D. G. Kelch 2004-4-25 04 .112 Contra Costa Martinez - West: Ozol Rock and Scenic Drive West Martinez on Carquinez Dr 28 Comment
  JEPS112455  Juncus bufonius D. G. Kelch 2005-3-24 05 .51 Contra Costa Pt. Pinole near wharf 2 Comment
  UC2028372  Juncus bufonius var. bufonius Barbara Ertter 1998-6-20 16234 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo. Alkali Pond at Wiget Lane entrance. Comment
  UC691983  Juncus bufonius var. bufonius Mary L. Bowerman 1931-4-4 635 Contra Costa Mount Diablo, 2 mi by road from West Entrance = North Gate Mount Diablo Comment
  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
  CHSC116625  Juncus bufonius var. congestus Lowell Ahart; Josephine Guardino 2016-4-19 20786 Contra Costa Below the high water line of Los Vaqueros Reservoir, 1.4 miles northwest of Los Vaqueros Reservoir Mrina, 1.9 miles (air)southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  UC2028166  Juncus bufonius var. congestus Barbara Ertter 1998-5-3 16078 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, near Wall Point, SW-facing bank above road. Comment
  JEPS78616  Juncus lescurii Walter Knight, L. R. Heckard, and Bert Johnson 1978-9-28 3275 Contra Costa South Landing Browns Island 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
  UC2013064  Juncus occidentalis Barbara Ertter with Lisa Schultheis 1996-9-2 15282 Contra Costa South side Mount Diablo, grasslands below Knobcone Point Road along path to Devils Slide. Comment
  UCD141678  Juncus oxymeris Ann F. Johnson 1978-6-26 AN 50 Contra Costa Shore of San Joaquin River, PG and E site, Antioch Dunes. Comment
  JEPS112437  Juncus patens D. G. Kelch 2004-5-7 04 .200 Contra Costa Ca ada del Cierbo Ca ada del Cierbo 40 Comment
  UC691911  Juncus patens Mary L. Bowerman 1932-11-26 1680 Contra Costa above South Road (in sight of South Gate); Mount Diablo, South Gate Spring Comment
  SEINET6174583  Juncus phaeocephalus L. Koch 1940-6-5 1004 b Contra Costa Two milees south of San Rafael Ferry Dock Comment
  JEPS100047  Juncus phaeocephalus var. paniculatus G. Smick 2003-6-6 GAS 211 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111078  Juncus phaeocephalus var. paniculatus Lee Echols 2003-6-2 s.n. Contra Costa N of Lark Drive in SW portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond 15 Comment
  JEPS111080  Juncus phaeocephalus var. paniculatus Lee Echols 2003-6-2 s.n. Contra Costa N of Lark Drive in SW portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond 15 Comment
  UC1157920  Juncus xiphioides Olive Dyer 1936-9-18 444 Contra Costa near Alvarado Park; Wildcat Canyon Comment
  UC2029085  Juncus xiphioides Barbara Ertter 2000-7-16 17407 Contra Costa Pine Creek on WNW base of Mount Diablo Comment
  UC691976  Juncus xiphioides Mary L. Bowerman 1930-6-28 383 Contra Costa Canyon Nook Picnic Grounds Mount Diablo 670 Comment
  UC691978  Juncus xiphioides Mary L. Bowerman 1932-11-12 1648 Contra Costa Pine Spring Mount Diablo Comment
  CAS-BOT-BC80925  Juniperus californica Alice Eastwood 1922-3-17 11079 Contra Costa Mt. Diablo Comment
  UC486488  Juniperus californica Mrs. G. Earle Kelly 1932-7-20 Contra Costa Laurel Dell Mt. Diablo, Laurel Dell Comment
  UCR168453  Juniperus californica Joseph A. Ewan 1933-10-15 8038 Contra Costa Coast Range, Mount Diablo, southwest slope 1067 Comment
  SEINET10531634  Juniperus californica Lewis S. Rose 1941-3-22 Rose 41052 Contra Costa Mt. Diablo, west slope. 915 Comment
  JEPS55998  Keckiella corymbosa L. R. Heckard and R. Bacigalupi 1968-6-27 Contra Costa Bald Ridge Mt. Diablo (along trail to Eagle Peak, ne of Deer Flat) 670 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
  UC585510  Koeleria macrantha Virginia E. Long 1933-6-14 223 a Contra Costa between Curry Cave trail canyon and W. Fork Mt. Diablo; , btw Curry Cave trail canyon and W. Fork Comment
  UC691218  Koeleria macrantha Mary L. Bowerman 1935-6-1 3110 Contra Costa largest ridge between Ransom Point Ridge and Mitchell-Pine divide Mount Diablo; , btw Ransom Point ridge and Mitchell-Pine divid 1066 Comment
  CAS-BOT-BC273611  Koeleria pyramidata Mary L. Bowerman 1933-6-14 2274 Contra Costa Mount Diablo. Curry-Cave canyon: Ridge between two main forks, at north end of flat at upper end Comment
  UC1050499  Kolkwitzia amabilis N. Floy Bracelin 1941-4-27 1227 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS99525  Lactuca saligna Mary L. Bowerman 1975-9-14 Contra Costa Mount Diablo. By hillside near Chase Pond. Comment
  UC2028521  Lactuca virosa Barbara Ertter 1997-9-14 15804 Contra Costa WSW base of Mount Diablo, creek NW of Macedo Ranch between Pine Ridge and lowers Wall Point Road. Comment
  CAS-BOT-BC341479  Lagophylla ramosissima R. Bacigalupi 1922-9-24 s.n. Contra Costa Fields between Clayton and Mitchell Canyon Comment
  JEPS99988  Lamarckia aurea G. Smick 2003-4-22 GAS 140 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS128773  Lamarckia aurea Kevin Hintsa 2000-6-5 Contra Costa 3101 Finley Road at SE base of Mount Diablo. Comment
  UC579839  Lamium amplexicaule Annetta Carter 1937-4-4 1230 Contra Costa about 10 mi e Pinole; Vaca Canyon Comment
  CDA22719  Lastarriaea coriacea Sue Bainbridge 2007-4-26 Byron-Airport- 5 Contra Costa Byron Airport. Comment
  CHSC23361  Lasthenia californica Willis Ball 1975-4-19 523 Contra Costa Contra Loma Regional Park. In area #1. Ca. 150 yds sw of main parking lot at the s end of the lake. 38 Comment
  JEPS10382  Lasthenia californica subsp. californica W. L. Jepson 1931-4-5 15718 Contra Costa adobe flat in hills about Nortonville 457 Comment
  CAS-BOT-BC324463  Lasthenia conjugens Milo S. Baker 1946-4-20 11330 Contra Costa Near Concord Comment
  JEPS65187 Image available Lasthenia fremontii L. R. Heckard 1971-4-15 2480 Contra Costa s Byron (at intersection of Holey Rd) Comment
  UC762046  Lasthenia fremontii R. F. Hoover 1937-5-14 2118 Contra Costa Byron Hot Springs Comment
  UC1598597  Lasthenia glaberrima A. D. E. Elmer 1903-5-1 4321 Contra Costa Walnut Creek Comment
  UC691500  Lasthenia glaberrima Mary L. Bowerman 1935-6-21 3153 Contra Costa s Turtle Rock Comment
  UC2070484  Lasthenia glaberrima Barbara Ertter with Joanne Kerbavaz and Alan Whittemore 2003-6-11 18215 Contra Costa Turtle Rock Ponds on east side Pine Creek, below Diablo Ranch on west side Mount Diablo. Comment
  JEPS35405  Lasthenia glabrata subsp. glabrata W. L. Jepson 1925-4-26 10686 Contra Costa Black Hills Mt. Diablo, Black Hills Comment
  UC62999  Lasthenia glabrata subsp. glabrata H. M. Hall 1901-3-21 1703 Contra Costa Martinez Comment
  POM301000  Lasthenia glabrata subsp. glabrata Mary L. Bowerman 1933-5-5 2000 Contra Costa Alamo Canyon, toward mouth. 305 Comment
  UC71908  Lasthenia gracilis The Postmaster 1900-3-24 Contra Costa Oakley Region of Mount Diablo Comment
  UC89979  Lasthenia microglossa K. Brandegee 1889-5-1 Contra Costa Antioch Comment
  UC2028062  Lasthenia microglossa Barbara Ertter, Tony Morosco 1998-4-12 16012 Contra Costa Mount Olympia on north side of Mount Diablo. Comment
  UC130780  Lasthenia minor T. S. Brandegee 1892-5-1 Contra Costa Antioch Comment
  UC30472  Lasthenia minor F. T. Bioletti 1892-1 Contra Costa Byron Comment
  UC30474  Lasthenia minor Jos. Burtt Davy 1895-4-7 937 Contra Costa Antioch Comment
  JEPS9811  Lasthenia minor Anna E. Ehlers 1920-4-18 557 Contra Costa near Mt. Diablo; Pine Canyon Comment
  POM181471  Lasthenia minor I. L. Wiggins 1930-4-17 4556 Contra Costa 1 mile E of Mountain House on road to Byron Comment
  JEPS10875  Lasthenia platycarpha Edw. L. Greene 1889-3-23 Contra Costa Byron Comment
  RSA138191  Lathyrus jepsonii subsp. californicus Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley. Comment
  RSA406665  Lathyrus jepsonii subsp. californicus E. E. Stanford 1930-5-24 1515 Contra Costa Marsh Creek Canyon. Comment
  JEPS89027  Lathyrus jepsonii var. californicus Volney Rattan 1887-5-22 Contra Costa Alhambra Valley Comment
  UC1795739  Lathyrus latifolius Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14671 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay; edge of coastal bluff and blacktop at northwest corner of area. Comment
  CDA964  Lathyrus vestitus D. G. Kelch 2004-4-26 4 .13 Contra Costa East Bay; Richmond: Miller-Knox Park, N side. Comment
  JEPS112323  Lathyrus vestitus var. vestitus Dean G. Kelch and Andrew G. Murdock 2005-3-11 05 .037 Contra Costa Martinez - Franklin Hills; County: Contra Costa; Carq. Shoreline EBRP. Contra Costa County CA. West of Martinez Highschool. Comment
  JEPS112342  Lathyrus vestitus var. vestitus Dean G. Kelch and Andrew G. Murdock 2004-4-25 04 .120 Contra Costa Martinez - West: Ozol Rock and Scenic Drive; County: contra Costa; Hill Southwest of large cottonwood. West of Martinez at gated end of Scenic Dr. Comment
  JEPS55375  Lathyrus vestitus var. vestitus W. L. Jepson 1918-6-5 7615 Contra Costa Donner Canyon Mt. Diablo 701 Comment
  UC692238  Lathyrus vestitus var. vestitus Mary L. Bowerman 1931-4-19 741 Contra Costa above lower Deer Flat Mount Diablo, Deer Flat Comment
  UC692407  Lathyrus vestitus var. vestitus Mary L. Bowerman 1930-6-5 257 Contra Costa 5.8 mi by road from North Gate (North Road); Mount Diablo 457 Comment
  SEINET7085230  Lavatera olbia Steven R. Hill 2010-7-19 38531 Contra Costa Residence of Kristin Yanker-Hansen, 569 Contada Circle, Danville [94526]. Coordinate Datum: WGS84/NAD83. 122 Comment
  CAS-BOT-BC323909  Layia chrysanthemoides M. K. Curran 1884-1-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC323910  Layia chrysanthemoides R. F. Hoover 1967-4-28 10506 Contra Costa Byron Hot Springs Comment
  UC1315007  Layia chrysanthemoides R. F. Hoover 1967-4-28 10506 Contra Costa Byron Hot Springs Comment
  UC30593  Layia chrysanthemoides Harley P. Chandler 1901-3-22 879 Contra Costa Rodeo Canyon San Francisco Bay Region, Rodeo Canyon Comment
  UC407377  Layia chrysanthemoides Ira L. Wiggins 1930-4-17 4572 Contra Costa .25 mi s Byron Comment
  CAS-BOT-BC321079  Layia glandulosa Alice Eastwood 1921-4-18 10271 Contra Costa Antioch Comment
  CAS-BOT-BC321084  Layia glandulosa A. A. Heller 1928-4-15 14513 Contra Costa Sandy bluff along the San Joaquin River at Antiock. Comment
  RSA394722  Layia glandulosa subsp. glandulosa Annetta Carter 1933-4-23 300 Contra Costa Above the San Joaquin River, between Antioch Bridge and Antioch. Comment
  JEPS123331  Layia hieracioides David Gowen with Chris Thayer 2010-4-30 1092 Contra Costa North of Briones Reservoir. West side of Oursan Trail, about midway between junction with Hampton Trail and north end of the dam. 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-BC377907  Layia platyglossa Lewis S. Rose 1933-4-17 33093 Contra Costa Antioch Comment
  CAS-BOT-BC377908  Layia platyglossa L. R. Abrams 1921-5-25 8011 Contra Costa near summit of Mt. Diablo Comment
  JEPS89794  Layia platyglossa Dean William Taylor 1971-3-28 992 Contra Costa on Mount Diablo, Mount Diablo State Park Mount Diablo; Mount Diablo State Park, Mount Diablo 914 Comment
  UC518017  Layia platyglossa Lewis S. Rose 1933-4-17 33093 Contra Costa Antioch Comment
  UC697166  Layia platyglossa Mary L. Bowerman 1935-4-26 2916 Contra Costa ridge w of Indian Ceremonial Spring; Mount Diablo 1005 Comment
  UC89338  Layia platyglossa Brandegee May 1883 Contra Costa e slope of Mt. Diablo Comment
  CAS-BOT-BC370669  Layia platyglossa Mary L. Bowerman 1935-4-26 2918 Contra Costa Summit of Mount Diablo Comment
  POM301051  Layia platyglossa Mary L. Bowerman 1935-4-26 2916 Contra Costa Ridge W of Indian Ceremonial Spring: Rocky ridge with S exposure 1006 Comment
  POM230495  Layia platyglossa subsp. campestris Jens Clausen 1936-4-18 1174 Contra Costa Summit Mt. Diablo; trail to Devil's Pulpit. Comment
  SACT001393  Leersia oryzoides Malcolm Nobs 1948-9-23 Contra Costa Growing in shallow water along slough bank, just coming to bloom. 7 miles south Kingston. Comment
  JEPS75303  Lemna gibba L. R. Heckard 1975-11-2 4211 Contra Costa nw side Brooks Island (Richmond); , Brooks Island Comment
  UC1607502  Lemna minor Barbara Ertter, Brad Olson 1991-9-28 10850 Contra Costa between Orinda and El Sobrante (s end of San Pablo Reservoir); San Pablo Reservoir 97 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
  POM181451  Lemna minuta I. L. Wiggins 1930-4-18 4607 Contra Costa Jersey Island. Comment
  CAS-BOT-BC215741  Lepechinia calycina Mary L. Bowerman 1932-9-3 1532 Contra Costa Muir Area, Mt. Diablo Comment
  CAS-BOT-BC88706  Lepidium acutidens Lewis S. Rose 1933-3-29 33041 Contra Costa Nortonville. Comment
  RSA8388  Lepidium dictyotum var. acutidens L. S. Rose 1933-3-29 33041 Contra Costa Nortonville. Comment
  CHSC69638  Lepidium dictyotum var. dictyotum James D. Jokerst; Barbara Ertter, Dave Magney 1989-4-5 3081 Contra Costa West and adjacent to Clifton Court Forebay, E of Bryon Hwy. and Italian Slough. 3 Comment
  RSA0029768  Lepidium didymum Barbara Ertter 1990-5-15 8991 Contra Costa South El Cerrito, north foot of Albany Hill at end of Yosemite Avenue cul-de-sac. Comment
  UC1535348  Lepidium latifolium Ernest L. Gordon 1987-6-1 Contra Costa Martinez Regional Shoreline, across from the railroad depot, in park Martinez Regional Shoreline Comment
  UC1607702  Lepidium latifolium Barbara Ertter 1991-5-12 9810 Contra Costa sw corner El Cerrito (n of park); San Francisco Bay, Point Isabel Regional Shoreline Comment
  CAS-BOT-BC89763  Lepidium latipes Alice Eastwood 1921-4-18 10259 Contra Costa Antioch. Comment
  CAS-BOT-BC89765  Lepidium latipes John Thomas Howell 1933-3-29 10907 Contra Costa Nortonville Hills. Comment
  POM172656  Lepidium latipes Chesnut, E. R. Drew 1889-4-16 s.n. Contra Costa Concord. 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
  CAS-BOT-BC89897  Lepidium nitidum Lewis S. Rose 1933-3-29 33045 Contra Costa Pittsburg. Comment
  UC402590  Lepidium nitidum I. J. Condit 1913-3-19 Contra Costa Walnut Creek Comment
  UC517997  Lepidium nitidum Lewis S. Rose 1933-3-29 33045 Contra Costa Pittsburg Comment
  RSA523888  Lepidium nitidum Barbara Ertter, Jim Jokerst, D. Magney 1989-4-5 8123 Contra Costa W and adjacent to Clifton Court Forebay, ca 15 airmiles SW of Stockton. 0 Comment
  UC1563655  Lepidium nitidum var. oreganum 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
  CDA37901  Leptochloa fascicularis D. G. Kelch, Mike Perlmutter 2011-9-23 11 .756 Contra Costa Entry to Discovery Bay. Comment
  UCD64056  Leptochloa fusca subsp. uninervia Chandler Jensen 1957-11-7 Contra Costa Vasco road, about 5 mi. south of Brentwood. Comment
  UC2027821  Leptosiphon androsaceus Barbara Ertter with Stu Garrett 1997-3-29 15529 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  UC2027726  Leptosiphon bicolor Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15506 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UCD118625  Leptosiphon bicolor Laurence S. Jones 1934-4-8 s.n. Contra Costa West slopes of Mt. Diablo. 609 Comment
  RSA167170  Leptosiphon liniflorus J. M. Tucker 1963-4-12 3686 Contra Costa On west side of Holey Road, 3 miles southeast of Byron. Comment
  UC2027920  Leptosiphon pygmaeus subsp. continentalis Barbara Ertter, Dan Norris 2001-4-8 17582 Contra Costa Lime Ridge Open Space east of Walnut Creek, high part of main ridge. Comment
  UCD134065  Lessingia glandulifera var. glandulifera Peter Rubtzoff 1954-9-14 1751 Contra Costa Lower San Joaquin River, E of Antioch. Comment
  JEPS481  Leymus X multiflorus W. L. Jepson 1937-7-2 18445 Contra Costa swale 1/2 mi w Crockett Comment
  SEINET10925827  Leymus X multiflorus Edward Lee 1935-8-13 Lee 1616 Contra Costa With stolons. Open grassy roadside. Vaca Canyon. Comment
  CDA39657  Leymus X multiflorus Slate 2013-5-22 PDR# 1641699 Contra Costa Concord; Walnut Creek channel upstream of Willow Pass Rd. 0 Comment
  SEINET10595833  Leymus condensatus Alan A. Beetle 1941-6-24 Beetle 1751 Contra Costa Pt. Richmond on San Francisco Bay, dense stand under Quercus. Comment
  CDA32482  Leymus triticoides D. G. Kelch 2005-6-24 5 .385 Contra Costa Carquinez Strait Region; 5th Street Prairie, Crockett. Comment
  UCD87711  Leymus triticoides Nougart 1916-12-1 s.n. Contra Costa Walnut Creek. Comment
  CAS-BOT-BC272214  Leymus triticoides R. E. Frenkel 1964-9-19 848 Contra Costa On Morgan Territore Road, 0.2 mile south of summit 637 Comment
  UC1101455  Lilaeopsis masonii Herbert L. Mason April, 1954 Contra Costa n. end Antioch Bridge Comment
  UC691999  Lilium pardalinum Mary L. Bowerman 1935-6-21 3144 Contra Costa e fork Arroyo del Cerro; Mount Diablo 289 Comment
  UC17906  Limnanthes douglasii subsp. douglasii H. M. Hall 1901-3-21 1690 Contra Costa Lafayette Region of the San Francisco Bay Comment
  JEPS20265  Limonium californicum W. L. Jepson 1922-7-9 9730 Contra Costa Richmond Comment
  UC1563862  Limonium californicum Barbara Ertter with Elizabeth Neese 1988-10-15 7981 Contra Costa El Cerrito; marsh w of I-580, w side along Rydin Road n of Central Ave. Comment
  UCD35164  Limonium californicum Beecher Crampton 1950-8-5 632 Contra Costa San Pablo Canal, NW of Richmond. Comment
  RSA721868C  Limonium sinuatum Barbara J. Ertter, Brad Olson 1994-5-7 12767 Contra Costa Western Drive to Point Molate, NW of Richmond -San Rafael bridge to toll plaza. Roadside near entrance to Point Molate Naval site. Comment
  UC1736382  Limosella acaulis Dean W. Taylor 1992-4-16 12393 Contra Costa S of Byron Hot Springs, in swale draining on E margin of NE1/4 SE1/4 Section 34 45 Comment
  UC400968  Linanthus ambiguus J. G. Lemmon Contra Costa Mt. Diablo Comment
  UC1713208  Linanthus bolanderi Mary L. Bowerman 1935-4-26 2905 Contra Costa w of Indian Ceremonial Spring; Mount Diablo 1005 Comment
  UC691641  Linanthus ciliatus Mary L. Bowerman 1935-5-22 3042 Contra Costa Eagle Point ridge Mount Diablo (canyon at the n end which heads into saddle w of Twin Peaks) 304 Comment
  SEINET8729347 Image available Linanthus liniflorus Herbert L. Mason 1952-1 14265 Contra Costa 3.5 miles south of Eyron Comment
  JEPS75536  Lithophragma affine P. F. Yorks 1975-5-15 397 Contra Costa N of Briones Reservoir (ca. 1.7 km S of Bear Creek Road on Hampton Road); Hampton Road Natural Reserve 180 Comment
  UC11876  Lithophragma affine Jos. Burtt Davy 1901-4-21 6919 Contra Costa Wildcat Canyon Comment
  UC518019  Lithophragma affine Lewis S. Rose 1933-4-17 33099 Contra Costa Walnut Creek Comment
  CAS-BOT-BC435625  Lithophragma heterophyllum Mary L. Bowerman 1931-3-21 585 Contra Costa Sycamore Canyon Comment
  CHSC107534  Lithophragma heterophyllum D. G. Kelch 2006-5-4 06 .124 Contra Costa Coast Range: Vaca Canyon, on North facing road cut/bank along Alhambra Valley Road. 162 Comment
  UC1300838  Lithophragma heterophyllum Helen K. Sharsmith 1963-3-3 5193 Contra Costa near Moraga (Las Trampas Canyon E of St. Mary's College) 259 Comment
  UCR246792  Lithophragma heterophyllum Dean Kelch 2011-5-4 11 .226 Contra Costa Central Coast, near Morgan Territory Regional Park, west of Morgan Territory Road 610 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
  UC691819  Logfia filaginoides Mary L. Bowerman 1935-5-1 2944 a Contra Costa West road 4.4 mi from entrance; Mount Diablo 381 Comment
  UC691821  Logfia filaginoides Mary L. Bowerman 1931-3-21 602 Contra Costa e end Fossil Rock City Ridge (open knoll above creek); Mount Diablo, Fossil Rock City Ridge Comment
  UC88259  Logfia filaginoides Mrs. K. Curran May 1886 Contra Costa Antioch Comment
  UC912409  Logfia filaginoides Herbert L. Mason 1928-4-29 4426 Contra Costa Mount Diablo Comment
  UC1819041  Logfia gallica Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14237 Contra Costa South side Mount Diablo, road to Sheepherders Springs 1/2 mile north of Curry Point from Sloan Road, clay at edge of grassland/woodland. 426 Comment
  CDA15269  Lolium multiflorum G. F. Hrusa, D. Crowe 1998-5-8 14400 Contra Costa Sacramento Delta; Moist, areas within disturbed grasslands at E end of Dow Chemical property. Rare form with branched inflorescence. Perennial? Comment
  CAS-BOT-BC283394  Lolium multiflorum Mary L. Bowerman 1938-5-25 3630 Contra Costa Mount Diablo. Arroyo del Cerro, by North Rd 109 Comment
  CDA9485  Lolium perenne D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .21 Contra Costa Byron Airport. Comment
  RSA641386  Lolium perenne subsp. multiflorum Terry J. O'Brien 1999-07 s.n. Contra Costa San Francisco Bay Area. eastern Richmond along boundary with EL Cerrito. Mira Vista Park adjacent Mira Vista School 91 Comment
  UCD127623  Lomatium dasycarpum P. B. Kennedy 1925-4-26 s.n. Contra Costa Banks above road to Sycamore Canon, Mt. Diablo. Comment
  POM287829  Lomatium macrocarpum Lyman Benson 1935-3-16 6264 Contra Costa Mt. Diablo, Watershed: Walnut Creek; Mountain Range: Mt. Diablo. 915 Comment
  JEPS111624  Lomatium utriculatum D. G. Kelch 2005-3-24 05 .56 Contra Costa Point Pinole Southern Pt. Pinole 3 Comment
  UC691471  Lomatium utriculatum Mary L. Bowerman 1930-6-5 260 Contra Costa 5.8 mi from North Gate (North Road); Mount Diablo 457 Comment
  CDA28994  Lonicera hispidula var. vacillans D. G. Kelch, Suzanne Latham, Matt Beyers 2009-6-3 9 .33 Contra Costa East Bay.; El Sobrante Ridge at end of Silver Belt Dr. on Miocene chert outcrop. Comment
  JEPS12831  Lonicera hispidula var. vacillans W. L. Jepson 1923-6-10 9988 Contra Costa head of Marsh Creek (Mt. Diablo); Mt. Diablo Comment
  UC691482  Lonicera hispidula var. vacillans Mary L. Bowerman 1935-6-21 3145 Contra Costa e fork Arroyo del Cerro (several hundred yards below the spring) 289 Comment
  NY785489  Lonicera japonica B. J. Ertter 1991-8-18 10694 Contra Costa Browns Island N of Pittsburg near confluence of Sacramento & San Joaquin rivers opposite Pittsburg Marina Comment
  UC1618284  Lonicera japonica Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10694 Contra Costa opposite Pittsburg Marina (in center of w end of Browns Island n of Pittsburg near confluence of Sacramento and San Joaquin Rivers); Browns Island Comment
  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
  UC1051193  Lonicera thibetica N. Floy Bracelin 1944-6-11 2727 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS99996  Lotus corniculatus A. Langston 2003-7-2 AL 58 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC692569  Lotus crassifolius var. crassifolius Mary L. Bowerman 1931-5-16 862 Contra Costa Meridian Peak summit Mount Diablo Comment
  UC15621  Lotus humistratus W. H. Brewer 1862-5-12 1073 Contra Costa Monte Diablo Comment
  UC555542  Lotus junceus var. biolettii H. L. Mason 1929-5-7 5262 Contra Costa Moraga Ridge Comment
  UC692268  Lotus purshianus var. purshianus Mary L. Bowerman 1938-6-14 3676 Contra Costa 1 mi from North Gate (North Road); Mount Diablo 121 Comment
  UC692266  Lotus wrangelianus Mary L. Bowerman 1932-4-27 1393 Contra Costa canyon w of Riggs Canyon (s-face of Oyster Ridge); Mount Diablo, Oyster Ridge 335 Comment
  UCSC000383  Lotus wrangelianus A. E. Borell 1928-3-18 27 Contra Costa West slope of Mount Diablo 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
  POM318910  Lupinus Patricia Wilder 1961-8-29 1073 Contra Costa Walnut Creek, near Calif. Hwy 24 west side of city; Coast Mt. Range 42 Comment
  CAS-BOT-BC201369  Lupinus albifrons var. albifrons H. E. McMinn 1922-6-2 81 Contra Costa N. slope of Mt. Diablo Comment
  CAS-BOT-BC201377  Lupinus albifrons var. albifrons James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC201370  Lupinus albifrons var. albifrons A. A. Heller 1928-4-15 14517 Contra Costa Along the San Joaquin River at Antiock [Antioch] Comment
  CAS-BOT-BC201376  Lupinus albifrons var. albifrons Charles Piper Smith 1922-4-14 3483 Contra Costa Antioch - Santa Fe Comment
  CAS-BOT-BC201378  Lupinus albifrons var. albifrons Charles Piper Smith 1947-11-10 47710 Contra Costa Crow Creek Canyon Road - San Ramon. Field 0.9 miles southwest Comment
  UC1795855  Lupinus albifrons var. albifrons Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14594 a Contra Costa Sycamore Spring Trail off Prospectors Gap Rd., east side Mt. Diablo. 640 Comment
  RSA760662  Lupinus arboreus William J. Ferlatte, L. Maynard Moe 1970-4-27 1262 Contra Costa San Francisco Bay, Red Rock Island. Comment
  UC201981  Lupinus arboreus Miss Harriet A. Walker 1911-7-2 2511 Contra Costa near Santa Fe Track Antioch (Antioch); , near Santa Fe Track Comment
  CDA27417  Lupinus bicolor D. G. Kelch, A. G. Murdock 2005-4-15 5 .146 Contra Costa Carquinez Strait Region; Rodeo Creek. EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  JEPS89588  Lupinus bicolor Dean W. Taylor 1971-4-3 1045 Contra Costa slope near summit Mt. Diablo; S. Coast Ranges, Mt. Diablo Comment
  UC692567  Lupinus bicolor Mary L. Bowerman 1931-4-4 671 Contra Costa West Road just w Turtle Rock, Mount Diablo (= North Road, Mount Diablo); Mount Diablo, just w of Turtle Rock Comment
  UCD107273  Lupinus bicolor P. B. Kennedy 1916-5-11 25 Contra Costa Grand View Terrace; Richmond District. Comment
  UC692522  Lupinus formosus Mary L. Bowerman 1936-9-9 3538 Contra Costa Sycamore Canyon Mount Diablo (small flat valley e of Forces' house); , Sycamore Canyon 274 Comment
  JEPS100071  Lupinus formosus var. formosus A. Langston 2003-6-23 AL 53 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2029110  Lupinus formosus var. formosus Barbara Ertter with Travis Columbus 1990-6-10 9116 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill, SE of Alhambra Valley staging area Comment
  UC2029122  Lupinus formosus var. robustus Barbara Ertter with David Gowen 2013-4-19 21318 Contra Costa Southwestern Mount Diablo State Park southeast of Walnut Creek, upper end of Little Yosemite Trail at junction with Briones to Mount Diablo Regional Trail. Comment
  UC1618312  Lupinus latifolius var. latifolius Barbara Ertter with Laura Fujii 1990-7-21 9402 Contra Costa W of Pleasant Hill (Homestead Valley trail, at Bear Creek crossing; Briones Hills); Briones Regional Park 274 Comment
  JEPS112346  Lupinus microcarpus Dean G. Kelch and Andrew G. Murdock 2004-4-25 04 .110 Contra Costa Martinez - West: Ozol Rock and Scenic Drive; County: contra Costa; West Martinez on Carquinez Dr. 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
  UC201015  Lupinus microcarpus var. densiflorus Katharine Brandegee 1918-6-16 Contra Costa near Virgorit Powder Works; near Vigorit Powder Works Comment
  UC201017  Lupinus microcarpus var. densiflorus Katharine Brandegee 1918-6-16 Contra Costa near Vigorit Powder Works; near Vigorit Powder Works Comment
  UC1129577  Lupinus microcarpus var. microcarpus C. M. Belshaw 1936-5-11 2098 Contra Costa 5.25 mi e Danville; Mt. Diablo Quad. 289 Comment
  UC15961  Lupinus microcarpus var. microcarpus J. Burtt Davy April 1895 Contra Costa Antioch Comment
  UC201019  Lupinus microcarpus var. microcarpus Katharine Brandegee and Harriet E. Phillips 1918-6-16 Contra Costa near Vigorit Powder Works; near Vigorit Powder Works Comment
  UC201021  Lupinus microcarpus var. microcarpus Katharine Brandegee June 1918 Contra Costa Richmond Annex; El Dorado St. Comment
  SD103751  Lupinus microcarpus var. microcarpus Walter Knight, Irja Knight 1979-5-6 3395 Contra Costa Orinda, Camino del Diablo Comment
  UC1301168  Lupinus nanus Helen K. Sharsmith 1962-4-18 4960 Contra Costa near Canyon; San Francisco Bay Region 152 Comment
  UC2028071  Lupinus nanus Barbara Ertter, Tony Morosco 1998-4-12 16002 a Contra Costa Base of Mount Olympia on north side of Mount Diablo, NE of Olympia Trail. Comment
  RSA128342  Lupinus nanus subsp. nanus Peter H. Raven 1950-3-12 1427 Contra Costa Happy Valley Road, 3.8 miles above junction with Upper Happy Valley Road. Comment
  POM194558  Lupinus polycarpus Y. Mexia 1939-4-21 2378 Contra Costa Moraga Valley Comment
  UC692272  Lupinus succulentus Mary L. Bowerman 1931-3-21 588 Contra Costa Sycamore Canyon Sycamore Canyon, Mount Diablo (Mount Diablo); , Sycamore Canyon 335 Comment
  CDA39247  Luzula comosa D. G. Kelch 2003-3-21 3 .051 Contra Costa Carquinez Strait Region; Martinez; West: Ozol Rock and Scenic Drive. Comment
  JEPS48958  Luzula macrantha Elsa Kraeger 1926-3-7 Contra Costa South slope Mount Diablo Comment
  UC2028336  Luzula macrantha Barbara Ertter 1991-5-5 9778 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, ridge E of Coal Canyon Comment
  JEPS107097  Lythrum californicum Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10695 Contra Costa Browns Island N of Pittsburg near confluence of Sacramento & San Joaquin rivers, opposite Pittsburg Marina, center of w. end of island Comment
  JEPS45984  Lythrum hyssopifolia W. L. Jepson 1940-6-5 19933 Contra Costa Richmond Comment
  UC692637  Lythrum hyssopifolia Mary L. Bowerman 1930-6-28 391 Contra Costa Mount Diablo, Lower Silver Spring Lower Silver Spring; Mount Diablo, Lower Silver Spring Comment
  UC692635  Lythrum hyssopifolia Mary L. Bowerman 1932-11-19 1662 Contra Costa Mount Diablo, Stachys Spring, Mountain Springs Canyon, (below junction of pipes from numbers 3 and 4 club springs) Mountain Springs Canyon; Mount Diablo, Stachys Spring, Mountain Springs Canyon Comment
  UCR263783  Lythrum tribracteatum Barbara Ertter, Brad Olson 1991-9-28 10834 Contra Costa San Pablo Reservoir between Orinda and El Sobrante 91 Comment
  UC2028242  Lythrum tribracteatum Barbara Ertter, Tony Morosco 1998-9-18 16422 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, western quarry area. Comment
  UC33221  Madia elegans Jos. Burtt Davy 1895-1 Contra Costa Moraga Pass Comment
  UC697172  Madia elegans Mary L. Bowerman 1933-5-17 2106 Contra Costa Curry Canyon brance s of Olafsons' barn Mount Diablo 289 Comment
  CAS-BOT-BC342680  Madia elegans Mary L. Bowerman 1933-5-17 2106 Contra Costa Mount Diablo. Curry Canyon branch south of Olafsons' barn 289 Comment
  CDA8271  Madia gracilis D. G. Kelch, A. G. Murdock 2005-5-6 5 .222 Contra Costa Carquinez Strait; East of Christie Road. South of Route 4, Franklin Canyon. Comment
  UC1795004  Madia gracilis R. K. Brummitt and B. Ertter 1998-5-6 19781 Contra Costa Mt. Diablo, NW side, path to Mitchell's Rock 300 Comment
  UC691765  Madia gracilis Mary L. Bowerman 1931-4-25 754 Contra Costa two mi by road from west entrance = North Gate; Mount Diablo Comment
  UC691767  Madia gracilis Mary L. Bowerman 1933-5-17 2104 Contra Costa branch of Curry Canyon due s Olafson's barn (w-facing bank just n of first fork of canyon); Mount Diablo 289 Comment
  UC2027835  Madia gracilis Barbara Ertter 2001-5-10 17636 Contra Costa North flank of Mount Diablo, SE of Mitchell Canyon trailhead, on traversing road to Mitchell Rock Trail. Comment
  UC2029027  Madia gracilis Barbara Ertter 2002-6-16 17951 Contra Costa Richmond Field Station (UC-Berkeley). Comment
  UC1861832  Madia sativa Barbara Ertter with Richard Rabeler 1994-6-18 12838 Contra Costa Pt. Pinole Regional Shoreline at north end of Richmond; northeast corner of park, near jct. Marsh Trail and Cook's Point Trail. Comment
  JEPS95241  Malacothamnus hallii Stephen W. Edwards 1988-9-5 Contra Costa Lime Ridge, Walnut Creek Open Space above country club Comment
  UC33270  Malacothrix californica J. Burtt Davy 1895-4-7 881 Contra Costa Antioch Comment
  CAS-BOT-BC347390  Malacothrix floccifera Rimo Bacigalupi 1924-6-14 s.n. Contra Costa Summit of Mt Diablo Comment
  UCD134393  Malacothrix floccifera P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. 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
  UC1618290  Malus sylvestris Barbara Ertter, Lynne Hosley 1993-4-17 11506 Contra Costa 10 air mi n of Livermore (Morgan Territory, hills in lee of Mount Diablo, along Volvon Trail at se edge of park) 609 Comment
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Aug 15 2016
  UC692622  Malva nicaeensis Mary L. Bowerman 1938-5-25 3631 Contra Costa Mount Diablo, North Road at Arroyo del Cerro (place where bank joins first bottom 7 ft from stream) Arroyo del Cerro; Mount Diablo, Arroyo del Cerro 1097 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
  RSA0004204  Malvastrum hallii H. M. Hall, F. M. Essig 1916-5-30 10131 Contra Costa Mt. Diablo, westerly side north of Pine Canon. 275 Comment
  CAS-BOT-BC8186  Malvastrum howellii John Thomas Howell 1931-5-12 6470 Contra Costa Nortonville Comment
  UC1606434  Malvella leprosa Barbara Ertter, Brad Olson 1993-10-30 12289 Contra Costa n.e. Rodeo (across R.R. tracks from San Pablo Ave., beach next to jetty) Comment
  SEINET3450872  Marah fabacea Dean G. Kelch, Andrew G. Murdock 2003-3-21 DGK 3 .040 Contra Costa Martinez West, Martinez West, Ozol Rock and Scenic Drive 40 Comment
  UC692642  Marah fabacea Mary L. Bowerman 1931-4-4 634 Contra Costa 2 mi by road North Gate; Mount Diablo 228 Comment
  UC1949100  Marah fabacea Barbara Ertter 1991-6-1 10076 Contra Costa Las Trampas Regional Wilderness in hills W of Danville, steep E-facing slope at N end Rocky Ridge Trail Comment
  CHSC46933  Marah oregana Robert A. Schlising 1964-4-2 2671 Contra Costa Berkeley Hills, above city of Oakland. Comment
  CHSC116621  Matricaria discoidea Lowell Ahart; Josephine Guardino 2016-4-19 20766 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides of the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  JEPS127047  Matricaria discoidea Lowell Ahart, Josephine Guardino 2016-4-19 20766 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  JEPS99957  Matricaria discoidea G. Smick 2003-3-27 GAS 91 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC348257  Matricaria occidentalis R. E. Frenkel 1964-4-8 419 Contra Costa Bixler Marsh Comment
  CAS-BOT-BC348258  Matricaria occidentalis R. E. Frenkel 1963-5-15 202 Contra Costa East of Bixler Road between Marsh Creek Road and Point of Timber Road, about 200 yards north of pink house on west side of road, about 10-20 m. east of fence Comment
  RSA215988  Matricaria occidentalis R. E. Frenkel 1963-5-15 197 Contra Costa Grazed field east of Bixler Road between Marsh Creek Road and California Highway 4 in Byron Tract Comment
  CHSC116602  Medicago polymorpha var. polymorpha Lowell Ahart; Josephine Guardino 2016-4-19 20762 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
  POM300624  Melica californica Mary L. Bowerman 1935-5-25 3070 Contra Costa Meridian Peak south of the summit (east of the hairpin turn on road). Mount Diablo. 1067 Comment
  POM300626  Melica californica Mary L. Bowerman 1935-4-22 2883 Contra Costa Ridge west of Pioneer Road (west of Stage Road). East face of ridge; Mount Diablo. 854 Comment
  UC1132245  Melica californica C. M. Belshaw 1936-5-8 2051 Contra Costa 1.75 mi sse Mt. Diablo summit; Mt. Diablo Quad. 609 Comment
  UC692466  Melica californica Mary L. Bowerman 1933-5-9 2037 Contra Costa hillside e Pioneer Camp; Mount Diablo Comment
  UC692468  Melica californica Mary L. Bowerman 1933-5-8 2029 Contra Costa n of Rock City (Mount Diablo); Mount Diablo Comment
  UC771209  Melica californica W. S. Boyle 1942-4-10 1062 Contra Costa Ferry Point; overlooking San Francisco Bay Comment
  UCD86441  Melica californica Beecher Crampton 1956-5-14 3392 Contra Costa 7 miles southwest of Antioch, just east of old Nortonville. Comment
  UCD87145  Melica californica P. B. Kennedy 1916-5-1 s.n. Contra Costa Pinehurst. Comment
  SEINET10893688  Melica californica M. Bowerman 1991-5-21 Bowerman s.n. Contra Costa Mount Diablo. Jim White Trail [Deer Flat Rd]. South side of Juniper-Moses Rock Trail near Deer Flat junction. Large silvery patches scattered over S-facing hillside. Comment
  UCD87814  Melica imperfecta Beecher Crampton 1956-5-14 3405 Contra Costa Southern boundary of Mt. Diablo State Park. Comment
  RSA295077  Melica torreyana Robert A. Norris, John L. Inase 1981-4-25 4143 Contra Costa Alongside Abrigo Valley trail, west part of Briones Regional Park (ca. 3 miles NNW Lafayette). 220 Comment
  RSA762303  Melica torreyana William J. Ferlatte, L. M. Moe 1970-4-27 1228 Contra Costa San Francisco Bay, Red Rock Island. Comment
  SEINET3383312 Image available Melica torreyana Barbara Ertter, John Little 1989-1 8111 Contra Costa Hillside Park in El Cerrito, +/- undisturbed vegetation on steep W facing slope Comment
  UC162940  Melica torreyana C. F. Baker 1903-4-28 2815 Contra Costa Mitchell's Canyon; Mt. Diablo Comment
  UC188902  Melica torreyana Harley P. Chandler 1901-4-5 966 Contra Costa between Pine Canyon and Mt. Diablo Summit; Mt. Diablo Region Comment
  UC691167  Melica torreyana Mary L. Bowerman 1935-5-8 2972 Contra Costa Muir Area 1036 Comment
  UCD161481  Melica torreyana A. A. Beettle 1941-3-28 1723 Contra Costa near Orinda. Comment
  JEPS65535  Melilotus indicus W. L. Jepson 1922-5-18 9644 Contra Costa North Berkeley Hills 152 Comment
  UC692281  Melilotus indicus Mary L. Bowerman 1932-5-6 1418 Contra Costa Mitchell Canyon floor Mount Diablo (roadside) 213 Comment
  JEPS102899  Mentha spicata Barbara Ertter with Mary Bowerman 1996-11-21 15394 Contra Costa downstream from Mitchell Canyon trailhead Mount Diablo 182 Comment
  POM300997  Mentha spicata Mary L. Bowerman 1938-11-19 3733 Contra Costa Mitchell Canyon (at one of places where stream crosses road) 229 Comment
  OBI72118  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 366 Comment
  RSA756364  Mentzelia affinis Barbara Ertter 1991-5-5 9773 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, south side of Rose Hill above Nortonville Pass. 366 Comment
  JEPS42758  Mentzelia dispersa W. L. Jepson 1921-5-22 9202 Contra Costa Mt. Diablo 914 Comment
  JEPS42778  Mentzelia micrantha W. L. Jepson 1919-6-8 8331 Contra Costa Mt. Diablo Comment
  HSC101958  Micranthes californica Nikolaus Gillen, Michelle Bihler 2014-3-20 10 Contra Costa Mount Diablo State Park. Eagle Peak Trail. 649 Comment
  SBBG2832  Micranthes californica J. M. Tucker 1946-3-24 1389 Contra Costa hills between Nortonville and Somersville Comment
  UCD16073  Microlepia strigosa Glen Holstein 1988-2-12 s. n. Contra Costa California. Contra Costa County: City of Danville. Comment
  CDA31454  Micropus californicus D. G. Kelch 2006-5-2 6 .21 Contra Costa Carquinez Strait; Fernandez Ranch; W. Christie Rd. Comment
  CDA32927  Micropus californicus D. G. Kelch 2009-5-24 9 .296 Contra Costa Carquinez Strait; Carquinez Loop Trail S of Ozol, S-SW of Martinez, nr Wolcott Ln . Comment
  RSA184979  Micropus californicus L. S. Rose 1966-4-22 66031 Contra Costa Donner Canyon, north slope of Mount Diablo, south of Clayton 213 Comment
  JEPS40629  Micropus californicus var. californicus W. L. Jepson 1923-4-22 9877 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC348366  Micropus californicus var. californicus Brandegee No date on label s.n. Contra Costa Antioch Comment
  RSA720807  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 518 Comment
  UCD134487  Micropus californicus var. californicus P. B. Kennedy 1925-4-26 s.n. Contra Costa Mt. Diablo. Below old road. Comment
  CAS-BOT-BC348648  Micropus californicus var. subvestitus Brandegee No date on label s.n. Contra Costa Antioch Comment
  UCSC007286  Micropus californicus var. subvestitus Randall Morgan 2010-5-21 5027 Contra Costa Dan Cook Canyon trail, Mount Diablo Comment
  JEPS89620  Microseris campestris Dean W. Taylor 1990-4-23 10634 Contra Costa ca. 2 mi. due w. Byron Hot Springs; San Joaquin Valley, Byron Hot Springs 7 1/2 Quad. 1964 ed. 30 Comment
  UC2027816  Microseris douglasii Barbara Ertter with Holly Forbes 1997-4-20 15550 Contra Costa North base of Mount Diablo, roadside on trail to Back Creek from Mitchell Canyon trailhead. Comment
  UC565499  Microseris douglasii subsp. douglasii H. L. Mason 1929-3-31 5142 Contra Costa Briones Valley Comment
  UC691433  Microseris douglasii subsp. douglasii Mary L. Bowerman 1931-4-11 697 Contra Costa toward mouth of Pine Canyon; Mount Diablo Comment
  UC691463  Microseris douglasii subsp. douglasii Mary L. Bowerman 1931-4-11 698 Contra Costa toward mouth of Pine Canyon; Mount Diablo Comment
  CAS-BOT-BC348883  Microseris douglasii subsp. douglasii Walter Knight; Irja Knight 1979-4-22 3442 Contra Costa At s.e. corner of Appian Way and Interstate 80 in Pinole Comment
  CAS-BOT-BC348885  Microseris douglasii subsp. douglasii Brandegee No date on label s.n. Contra Costa Antioch Comment
  RSA720815  Microseris douglasii subsp. douglasii Barbara Ertter, Dale Sanders, Dan Norris 1994-3-26 12336 -a Contra Costa Peyton Hill east of I-680 east of Martinez, south of Waterfront Road Comment
  UC768670  Microseris douglasii subsp. tenella Robert F. Hoover 1939-4-25 4062 Contra Costa Richmond Hills Comment
  JEPS36177  Microseris sylvatica W. L. Jepson 1918-6-3 7590 Contra Costa Donner Canyon Mt. Diablo 304 Comment
  SEINET5561514  Mimulus aurantiacus H. S. Gentry 1931-1 55 Contra Costa Collected on Mt. Diablo near Buckle Point. Comment
  UC691621  Mimulus cardinalis Mary L. Bowerman 1932-11-19 1663 Contra Costa e Pioneer Camp (beneath fire trail); Mount Diablo, Mountain Springs Canyon Comment
  POM5025  Mimulus cardinalis M. Alice King 1896-07 257 Contra Costa San Pablo Comment
  JEPS11549  Mimulus grandis W. L. Jepson 1922-5-15 9640 Contra Costa North Berkeley Hills 182 Comment
  UC691503  Mimulus grandis Mary L. Bowerman 1935-4-22 2880 Contra Costa 2 mi from West road (= North Rd.) entrance; Mount Diablo Comment
  POM261437  Mimulus guttatus J. T. Howell 1940-4-21 15402 Contra Costa Pine Canyon, Mount Diablo Comment
  UC2028091  Mimulus guttatus Barbara Ertter, Tony Morosco 1998-4-12 16001 Contra Costa Base of Mount Olympia on north side of Mount Diablo, NE of Olympia Trail. Comment
  UC103731  Mimulus latidens T. S. Brandegee May 1889 Contra Costa Antioch Comment
  JEPS116944  Mimulus latidens David Gowen 2008-4-16 862 Contra Costa Just south of parking area for Black Diamond Mines Regional Preserve on Frederickson Road. Comment
  UCD32387  Mimulus latidens Beecher Crampton 1950-4-22 531 Contra Costa 2 miles south of Antioch, on road from Antioch to Lone Tree Valley, in shallow depression along roadside. 60 Comment
  UC886241  Mimulus microphyllus Lewis S. Rose 1941-3-27 41064 Contra Costa 2 mi w Byron 60 Comment
  UC691739  Mimulus nasutus Mary L. Bowerman 1931-4-18 724 Contra Costa at junction of e and ne forks Sycamore Canyon; Mount Diablo 396 Comment
  RSA59589  Minuartia douglasii Verne Grant, Alva Grant 1950-5-13 8897 Contra Costa Saddle between N & Meridian peaks, Mt. Diablo. Comment
  UC2028337  Mollugo verticillata Barbara Ertter 2005-8-18 18635 Contra Costa Mudflats on SE side of San Pablo Reservoir in East Bay Hills, east of San Pablo Dam Road between San Pablo and Orinda, access between HQ and boat launching area [reservoir way down this year while being drained for seismic work on dam], with extensive Artemisia biennis. Comment
  CAS-BOT-BC221680  Monardella douglasii Volney Rattan 1886-6-14 s.n. Contra Costa Mt. Diablo Comment
  UC2070470  Monardella douglasii Barbara Ertter with John Ginochio 2002-6-1 17941 Contra Costa Ginochio Ranch in Arroyo del Cerro on NW side of Mount Diablo, connector road between Government Road and Olofson Homestead. Comment
  CAS-BOT-BC220512  Monardella villosa John Thomas Howell 1929-7-7 4324 Contra Costa On northern slope near south end of Carquinez Bridge 45 Comment
  CAS-BOT-BC220515  Monardella villosa Mary L. Bowerman 1938-6-21 3689 Contra Costa Mount Diablo Comment
  JEPS100054  Monardella villosa subsp. villosa G. Smick 2003-6-6 GAS 215 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691416  Monardella villosa subsp. villosa Mary L. Bowerman 1938-6-21 3689 Contra Costa summit Mount Diablo Comment
  UC1076314  Monolepis nuttalliana Herbert L. Mason 1931-4-5 5891 Contra Costa Antioch sandhills Comment
  JEPS108222  Monolopia gracilens David Gowen 2005-5-6 278 Contra Costa Mt. Diablo State Park. Prospectors Gap Rd. ca 1/4 mile east of Prospectors Gap. Comment
  JEPS99497  Monolopia gracilens Mary Bowerman 1979-5-2 Contra Costa Mount Diablo, Old Mines Trail, Back Canyon. Comment
  POM301019  Monolopia gracilens Mary L. Bowerman 1933-5-9 2057 Contra Costa Mount Diablo: Muir Area, southeast slope east of the rocks Comment
  UC903116  Monolopia lanceolata Donald Nelson 1941-3-23 Contra Costa e of Byron Comment
  JEPS34922  Monolopia major R. F. Hoover 1938-3-25 2899 Contra Costa Lone Tree Valley Comment
  UC1080185  Monolopia major Sherwin Carlquist 1952-3-28 285 Contra Costa 7.2 mi w Tracy Comment
Read comments
Apr 12 2009
  UC618928  Monolopia major R. F. Hoover 1938-3-25 2899 Contra Costa Lone Tree Valley Comment
  CAS-BOT-BC349612  Monolopia major Brandegee No date on label s.n. Contra Costa Antioch Comment
  CAS-BOT-BC349613  Monolopia major Brandegee No date on label s.n. Contra Costa Antioch Comment
  CAS-BOT-BC349615  Monolopia major Dr. A. Kellogg; W. G. W. Harford 1969-4-8 508 Contra Costa Antioch Comment
  POM301038  Monolopia major Mary L. Bowerman 1932-4-27 1365 Contra Costa Mount Diablo: Oyster Ridge, south face: Grassy west-facing slope of ridge west of Riggs Canyon Comment
  POM300988  Montia fontana subsp. variabilis Mary L. Bowerman 1939-3-31 3736 Contra Costa Spring in bend of road to Barbecue Terrace ( off S road). Comment
  CHSC75113  Montia perfoliata Roger Thom 1987-4-17 1 Contra Costa 3300 block Johnson Rd. in Lafayette. 152 Comment
  UC1101358  Myosurus Herbert L. Mason 1952-3-13 14200 A Contra Costa 3.3 mi s Byron Comment
  CAS-BOT-BC83293  Myosurus minimus Herbert L. Mason 1952-4-26 14269 Contra Costa 3.5 miles south of Byron. 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
  UC1738102  Myosurus minimus D. E. Stone 1957-4-4 70 B Contra Costa 1 mi S of Byron ( on State 4) Comment
  SEINET5718492 Image available Myosurus minimus Roman Gankin 1958-1 s.n. Contra Costa Ca. 3 miles south of Byron.; Byron Comment
  CAS-BOT-BC7111  Myosurus minimus subsp. apus M. K. Curran 1884-1-1 s.n. Contra Costa Antioch Comment
  JEPS65190  Myosurus sessilis L. R. Heckard 1971-4-15 2477 Contra Costa S of Byron (intersection of Holey Road) Comment
  UC1101331  Myosurus sessilis Herbert L. Mason 1952-4-26 14269 Contra Costa 3.5 mi s of Byron Comment
  UCD96287  Myosurus sessilis H. L. Mason 1952-4-14 14264 Contra Costa 3.5 miles south of Byron. Comment
  UCR141655  Myriophyllum sibiricum M. R. Bell 1950-10-9 s.n. Contra Costa Near Concord, farm of E.J. Mangini Comment
  JEPS102918  Narcissus tazetta Barbara Ertter 1998-1-25 15910 Contra Costa so of Donner Canyon trailhead (Back Canyon Rd.); Mount Diablo Comment
  UC60163  Nassella lepida Jos. Burtt Davy 1899-4-9 7863 Contra Costa Las Trampas Peak Comment
  UC691263  Nassella lepida Mary L. Bowerman 1935-6-28 3161 Contra Costa canyon w of meridian below place where pipe crosses (s base of peak); Mount Diablo, Meridian Peak 441 Comment
  UC692413  Nassella lepida Mary L. Bowerman 1932-4-27 1387 Contra Costa canyon w Riggs Canyon (w exposure, s face of mt); Mount Diablo, Oyster Ridge 335 Comment
  JEPS116788  Nassella lepida David Gowen 2006-6-14 612 Contra Costa Morgan Territory Regional Park; At the NW end of Eagle Trail. Comment
  POM301847  Nassella lepida Mary L. Bowerman 1935-5-1 2936 Contra Costa North Road 2 mi from North Gate Comment
  CDA1583  Nassella pulchra D. G. Kelch 2002-5-24 2 .021 Contra Costa Carquinez Strait; 5th St. Prairie, Crockett. Comment
  UC790940  Nassella pulchra A. A. Beetle 1941-3-28 1718 Contra Costa open cut Orinda Comment
  UCD87531  Nassella pulchra Frank W. Gould 1941-4-20 1281 Contra Costa Near Richmond. Comment
  JEPS105728  Navarretia gowenii David Gowen 2004-6-13 102 Contra Costa Lime Ridge Open Space. Northwest end, ca. 600 feet elev. Comment
  UC133782  Navarretia mellita Katharine Brandegee Sep 1892 Contra Costa Oakland Hills, Redwood Peak Redwood Peak; Oakland Hills, Redwood Peak Comment
  SEINET11268197  Navarretia mellita Barbara Ertter 1998-12-6 16472 Contra Costa Southwest side of Mount Diablo, Wall Point Road just north of Rock City.; 0 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
  UCR197895  Navarretia pubescens Beecher Crampton 1949-9-11 493 Contra Costa Mount Diablo State Park, below main road, opposite Oak Knoll Picnic area 518 Comment
  JEPS112009  Navarretia squarrosa Christopher Thayer 1995-6-5 Contra Costa West of Pinole Peak 274 Comment
  UCR197889  Navarretia squarrosa Beecher Crampton 1949-6-26 474 Contra Costa Between Pinole and San Pablo, along US Hwy 40 [80], above Garrity Creek 30 Comment
  UCD36028  Navarretia squarrosa Beecher Crampton 1949-6-26 474 Contra Costa Contra Cost County, between Pinole and San Pablo, along US Highway 40, above Garrity Creek. 30 Comment
  CDA40363  Nemophila heterophylla A. G. Murdock 2004-3-5 210 Contra Costa Carquinez Strait Region; Sky Ranch. Comment
  JEPS100041  Nemophila heterophylla G. Smick 2003-2-27 GAS 54 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1021937  Nemophila heterophylla Rolf Y. Berg 1955-4-3 Contra Costa Laurel Dell Camp Mt. Diablo State Park; , Laurel Dell Camp Comment
  UC517484  Nemophila heterophylla John Thomas Howell 1933-5-14 11218 Contra Costa hills e St. Mary's College; hills e of St. Mary's College Comment
  RSA295080  Nemophila heterophylla Robert A. Norris, John L. Inase 1981-4-25 4142 Contra Costa Alongside Abrigo Valley trail, west part of Briones Regional Park (ca. 3 miles NNW Lafayette). 220 Comment
  RSA421271  Nemophila heterophylla H. de Forest 1930-4-6 s.n. Contra Costa [No location information on label.] Comment
  RSA75801  Nemophila heterophylla Lincoln Constance 1938-3-22 2031 Contra Costa Edge of Wildcat Canyon on north slope of the Berkeley Hills. 366 Comment
  UC691706  Nemophila heterophylla Mary L. Bowerman 1931-3-7 556 Contra Costa Sloan Road w of Sloan Ranch Mount Diablo (Mount Diablo); , w of Sloan Ranch Comment
  JEPS100012  Nemophila maculata G. Smick 2003-5-5 GAS 172 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS25353  Nemophila menziesii Rimo Bacigalupi with Paul C. Hutchinson and John Weiler 1959-3-19 6963 Contra Costa 2.4 mi w Byron (s-facing low hill along Camino Diablo, 0.3 mi e of junction with Vasco Road); along Camino Diablo, w of Byron 60 Comment
  JEPS3131  Nemophila menziesii Mary L. Bowerman 1931-3-8 557 Contra Costa w bank Mitchell Canyon, Mount Diablo Mount Diablo, Mitchell Canyon 304 Comment
  UC691708  Nemophila pedunculata Mary L. Bowerman 1932-3-27 1139 Contra Costa below Mitchell Rock (Mount Diablo); , below Mitchell Rock Comment
  CDA5536  Nerium oleander T. C. Fuller 1971-9-15 19928 Contra Costa Carquinez Strait; Old Highway 4, Alhambra Valley, ca. 4 miles west of Martinez. 0 Comment
  UC2027953  Nerium oleander Barbara Ertter with Joanne Kerbavaz and Mary Bowerman 2000-8-20 17509 Contra Costa North side Mount Olympia in Mount Diablo State Park, bulldozed site of former occupation at Zippe Spring. Comment
  CAS-BOT-BC233455  Nicotiana glauca Ira L. Wiggins 1930-4-18 4604 Contra Costa East end of Jersey Island Comment
  CAS-BOT-BC140360  Oemleria cerasiformis Alice Eastwood 1915-5-30 4459 Contra Costa Mt. Diablo Comment
  JEPS99980  Oemleria cerasiformis G. Smick 2003-2-20 GAS 46 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA128906  Oemleria cerasiformis Peter H. Raven 1950-3-5 1409 Contra Costa Happy Valley Road, 2.8 miles above intersection with Upper Happy Valley road. 244 Comment
  UC691106  Oemleria cerasiformis Mary L. Bowerman 1935-3-16 2734 Contra Costa Peach Tree Springs Rd. Mount Diablo (e fork of canyon) 228 Comment
  UC691108  Oemleria cerasiformis Mary L. Bowerman 1931-5-21 891 Contra Costa Curry Cave Point trail Mount Diablo (just above stream bed on w side) Comment
  SEINET6824845  Oemleria cerasiformis E. R. Drew 1888-2-22 s.n. Contra Costa Moraga Valley Comment
  CDA38496  Oenanthe sarmentosa D. G. Kelch 2003-8-13 3 .1 Contra Costa Carquinez Strait Region; Martinez Marsh. 0 Comment
  UC169387  Oenothera deltoides subsp. cognata K. Brandegee 1892-5 Contra Costa Antioch Comment
Read comments
Sep 29 2008
  POM355601  Oenothera deltoides subsp. cognata H. de Forest 1930-4-6 s.n. Contra Costa Near mouth of San Joaquin River Comment
  CAS-BOT-BC171590  Oenothera deltoides subsp. howellii J. H. Thomas 1949-4-19 314 Contra Costa Antioch sand dunes. 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
  UC635385  Oenothera deltoides subsp. howellii H. L. Mason 1929-3-31 5163 Contra Costa Antioch San Joaquin River (sand dike along river) Comment
  CDA38153  Oenothera deltoides subsp. howellii F. J. Brucato 1962-5-1 s.n. Contra Costa Antioch; Wilbur Ave. 0 Comment
  RSA119418  Oenothera deltoides subsp. howellii William M. Klein 1958-6-9 434 Contra Costa Sandhills N of Antoch, along the San Joaquin River Channel. 2 Comment
  UC615575  Oenothera elata subsp. hookeri Beryl O. Schreiber 1933-10-5 934 Contra Costa marsh Mount Diablo Comment
  JEPS100065  Olea europaea A. Langston 2003-7-24 AL 70 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SEINET3840787  Olea europaea Unknown 2006-6-23 6 .322 Contra Costa West Valona, West of Zampa Bridge above San Pablo avenue, along small stream draining north into the Western end of the Carquinez Strait 91 Comment
  JEPS122909  Orobanche bulbosa Adam C. Schneider 2015-5-22 936 Contra Costa Eagle Peak Trail of Mt. Diablo State Park. Comment
  RSA0059169  Orobanche bulbosa F. T. Bioletti 1894-5-13 11693 Contra Costa Mt. Diablo. Comment
  UC27861  Orobanche fasciculata W. H. Brewer 1862-6-20 1124 Contra Costa Hill North of Coal Mine, north of Mt. Diablo. Comment
  UC691744  Orobanche fasciculata Mary L. Bowerman 1935-5-22 3056 Contra Costa Saddle west of Twin Peaks Comment
  JEPS10840  Orobanche uniflora subsp. occidentalis Mary L. Bowerman 1935-4-22 2895 Contra Costa Ridge west of Pioneer Road (west of Old Stage Road); Grassy hillside with northwest exposure. Comment
  JEPS121477  Orobanche vallicola Adam C. Schneider 2013-10-12 316 Contra Costa Briones Regional Park, along north side of Beark Creek Trail, about 3/4 mile east of Oak Grove campground. Comment
  POM300994  Orthocarpus attenuatus Mary L. Bowerman 1933-5-11 2084 Contra Costa Inner Black Hills, west end (east of the meridian). Comment
  RSA29779  Orthocarpus erianthus Joseph A. Ewan 1934-4-8 8762 Contra Costa Head of Hog Canyon, S slope Mt Diablo. 640 Comment
  RSA407982  Orthocarpus purpurascens M. B. Dunkle 1935-4-14 4450 Contra Costa Sycamore Valley. Intermountain. 335 Comment
  SEINET10549722  Orthocarpus purpurascens John T. Middleton 1936-4-10 Middleton 134 D Contra Costa Deer valley. Comment
  POM15629  Orthocarpus pusillus H. P. Chandler 1901-4-5 945 Contra Costa Mt. Diablo Comment
  RSA720798  Osmorhiza berteroi Mary L. Bowerman 1975-6-7 s.n. Contra Costa Mount Diablo, Big Spring Comment
  UC2029047  Oxalis pes-caprae Barbara Ertter with Linda Vorobik 2000-1-9 16891 Contra Costa Las Trampas Regional Wilderness in East Bay Hills west of Danville, edge of woodland behind Eugene O'Neill house. Comment
  UC691360  Packera breweri Mary L. Bowerman 1930-6-22 359 Contra Costa Mitchell Canyon, by trail Mount Diablo Comment
  UCD32992  Panicum dichotomiflorum Beecher Crampton 1965-9-29 7525 Contra Costa 5 miles S of Brentwood, Vasco Road and Camino Vaqueros. Comment
  UCD96018  Papaver heterophyllum Cliff Low 1978-5-19 16 Contra Costa Back Canyon Creek, east of Eagle Peak on Mount Diablo. 304 Comment
  RSA722067  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, edge of San Francisco Bay. Comment
  JEPS105696  Parietaria hespera var. californica David Gowen 2004-4-16 31 Contra Costa Black Diamond Mines Regional Preserve. Canyon that heads south of the Nortonville townsite. Comment
  CDA22266  Parietaria judaica D. G. Kelch, A. G. Murdock 2004-4-11 4 .078 Contra Costa Carquinez Strait Region; Crockett - Crolona Heights. 6th Street at Lillian Street. In Crockett. Comment
  CAS-BOT-BC259646  Paspalum dilatatum John Thomas Howell; Gordon H. True 1972-6-29 48940 Contra Costa Along Byron Hot Springs Road where water has stood, SE of Byron Comment
  CAS-BOT-BC259648  Paspalum dilatatum R. E. Frenkel 1963-5-15 189 Contra Costa E side of Marsh Creek Road 2 miles E of Clayton Comment
  UC573059  Pectocarya pusilla H. L. Mason 1929-4-25 5210 Contra Costa Briones Rd to Antioch Comment
  JEPS84382  Pedicularis densiflora Roxanne Bittman 1977-3-29 27 Contra Costa on n si9de of Mount Diablo Scenic Road about 10 mi from base of mountain Mount Diablo Scenic Road 762 Comment
  UC54771  Pedicularis densiflora Joseph P. Tracy 1903-4-18 1801 Contra Costa hills near Berkeley (e slope beyond Bald Peak); San Francisco Bay Region 304 Comment
  UC691617  Pedicularis densiflora Mary L. Bowerman 1931-2-28 526 Contra Costa Mount Diablo, near s road just below junction Mount Diablo Comment
  POM300699  Pediomelum californicum Mary L. Bowerman 1935-6-1 3114 Contra Costa Summit, between the one-way roads. 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
  RSA686788  Pellaea andromedifolia Mark Morris 1929-03 14912 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
  NY583786  Penstemon centranthifolius C. F. Baker 1903-4-25 2938 Contra Costa Antioch Comment
  NY583832  Penstemon centranthifolius L. S. Rose 1936-4-24 36158 Contra Costa 3 miles east of Antioch 15.2 Comment
  RSA101693  Penstemon centranthifolius H. L. Mason 1929-3-31 5156 Contra Costa Along San Joaquin River, Antioch. Comment
  JEPS7569  Penstemon heterophyllus var. heterophyllus W. L. Jepson 1921-6-16 9315 Contra Costa Mt. Diablo Comment
  UC691517  Penstemon heterophyllus var. heterophyllus Mary L. Bowerman 1930-6-7 268 Contra Costa Meridian Peak summit (Meridian Peak crossed out) Mount 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
  UC2028143  Penstemon heterophyllus var. purdyi Barbara Ertter 1998-4-4 15972 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, Quarry Hill. Comment
  UC691800  Pentachaeta alsinoides Mary L. Bowerman 1933-3-18 1753 Contra Costa Meridian Peak Mount Diablo (a little e of the meridian) Comment
  UC691803  Pentachaeta alsinoides Mary L. Bowerman 1935-5-1 2938 Contra Costa west road 2 mi from entrance (across the creek); Mount Diablo 182 Comment
  RSA722064  Pentachaeta alsinoides Barbara Ertter, Lisa Schultheis 1995-4-27 14006 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; northwest side of open grassy ridge at end of Arbolado Drive. 122 Comment
  SBBG122848  Pentachaeta alsinoides B. Ertter, L. Schulteis 1995-4-27 14006 Contra Costa end of Arbolado Drive, Lime Ridge open space NW of Mt Diablo 121 Comment
  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
  JEPS111618  Perideridia kelloggii D. G. Kelch 2004-7-9 04 .296 Contra Costa Crockett - Carquinez Scenic Drive Carq. Scenic Dr. East of Crockett West of Bull Valley SA 60 Comment
  UC2028505  Perideridia oregana Barbara Ertter with Mary Bowerman, Lisa Schultheis 1998-8-21 16405 Contra Costa North side Shell Ridge Open Space west of Mount Diablo, near pond at Wiget Lane entrance Comment
  CDA9188  Petrorhagia dubia Christopher Thayer 1995-6-5 s.n. Contra Costa Carquinez Strait; W of Pinole Peak. Comment
  JEPS112707  Phacelia breweri Dean W. Taylor 1994-3-30 14114 Contra Costa Mt. Diablo (in Mt. Diablo State Park); Juniper Camp, on west slope of Moses Rock Ridge; along fire road that begins at NW end of campground, about 125 m NW of the gate 883 Comment
  UC198967  Phacelia breweri H. M. Hall and F. M. Essig 1916-5-31 10140 Contra Costa slopes s summit (type locality); Mount Diablo 1130 Comment
  UC24298  Phacelia breweri Harley P. Chandler 1901-4-5 969 Contra Costa Mt. Diablo Mt. Diablo (type locality) 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
  UC671751  Phacelia californica Lincoln Constance 1940-3-16 2524 Contra Costa margin of San Francisco Bay Point Richmond 15 Comment
  OBI13844  Phacelia californica G. Thomas Robbins, John Weiler 1959-5-23 4027 Contra Costa On W side of Brooks Island, San Francisco Bay, Richmond Comment
  RSA755524  Phacelia ciliata Barbara Ertter 1992-3-8 10910 Contra Costa NE edge of Black Diamond Mines Regional Preserve, NE-heading canyon with steep loose sides ca. 1/2 mile west of junction of Stewartville Trail and Frederickson Lane. Comment
  UC107374  Phacelia distans T. S. Brandegee May 1889 Contra Costa Antioch Comment
  RSA276851  Phacelia distans James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  CAS-BOT-BC6694  Phacelia distans var. australis Charles Fuller Baker 1903-4-28 2806 Contra Costa Antioch Comment
  UC735091  Phacelia imbricata subsp. imbricata Lincoln Constance, T. Morley, R. H. Shan, and W. H. Wagner 1946-4-26 3035 Contra Costa below Devil's Pulpit; Mount Diablo, Devil's Elbow 1127 Comment
  UCSC000586  Phacelia magellanica R. F. Hoover 1938-3-8 2821 Contra Costa Berkeley Country Club Comment
  UC691691  Phacelia nemoralis subsp. nemoralis Mary L. Bowerman 1931-5-16 848 Contra Costa Meridian Peak <?> summit Mount Diablo (s side 10 ft from top) Comment
  CAS-BOT-BC154326  Phacelia phacelioides H. M. Hall; F. M. Essig 1916-5-31 10135 Contra Costa Mount Diablo 1140 Comment
  CAS-BOT-BC154328  Phacelia phacelioides Lincoln Constance; Carl W. Sharsmith; Howard S. Reed 1940-4-27 2574 Contra Costa North of Juniper Camp, Mount Diablo 762 Comment
  POM310991  Phacelia phacelioides Lincoln Constance, C. W. Sharsmith, H. S. Reed 1940-4-27 2574 Contra Costa North of Juniper Camp, Mount Diablo 762 Comment
  UC691330  Phacelia phacelioides Mary L. Bowerman 1933-5-2 1950 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  UC2028313  Phacelia phacelioides Barbara Ertter, Susan D'Alcamo 1998-6-12 16163 Contra Costa North Peak Trail from Devil's Elbow on SE side of Mount Diablo summit. Comment
  SEINET3158353  Phacelia tanacetifolia L. S. Rose 1933-4-17 33091 Contra Costa Antioch Comment
  UC126023  Phacelia tanacetifolia Katharine Brandegee May 1907 Contra Costa Antioch Comment
  UC881270  Phacelia tanacetifolia Alice Eastwood 1915-5-30 4508 Contra Costa Mt. Diablo Comment
  JEPS99570  Phacelia tanacetifolia Mary Bowerman 1991-5-21 Contra Costa Comment
  UC2070445  Phalaris arundinacea Barbara Ertter with Chris Thayer, Dianne Lake et al. 2001-5-26 17655 Contra Costa Stamm Unit of Antioch Dunes National Wildlife Refuge east of Antioch. Comment
  UC650564  Phalaris lemmonii Ira L. Wiggins 1930-4-17 4583 Contra Costa 1/4 mi s Byron Comment
  SEINET10593167  Phalaris minor John Thomas Howell 1933-5-14 Howell 11234 Contra Costa St. Mary's College Comment
  CDA15237  Phalaris paradoxa G. F. Hrusa, D. Crowe 1998-5-8 14368 Contra Costa Sacramento Delta; Disturbed areas about annual grasslands on Dow Chemical property at Pittsburg. Annual, to 1.5 meters tall. Comment
  JEPS100003  Philadelphus G. Smick 2003-5-1 GAS 157 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS71095  Phlox gracilis W. L. Jepson 1923-3-11 9846 Contra Costa Black Hills Mt. Diablo 396 Comment
  UC2028439  Phoenix Barbara Ertter with Chris Thayer 1996-10-25 15357 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park Comment
  UC24023  Pholistoma membranaceum J. Burtt Davy 1895-4-8 989 Contra Costa foothills Antioch Comment
  CDA22381  Phoradendron macrophyllum D. G. Kelch, A. G. Murdock 2005-5-13 5 .235 Contra Costa Carquinez Strait Region; Martinez. South of oil refinery along railroad tracks in fragment of habitat. Comment
  CAS-BOT-BC141121  Phoradendron serotinum subsp. macrophyllum Lewis S. Rose 1930-12-10 s.n. Contra Costa Walnut Creek Comment
  CAS-BOT-BC260892  Phragmites australis Ira L. Wiggins 1930-4-18 4588 Contra Costa Jersey Island Comment
  SBBG122964  Phyla nodiflora B. Ertter 1990-9-10 9634 Contra Costa Briones Hills S of Martinez, Maricich Lagoon at jct of Alhambra Crk Trail and Old Briones Rd; Briones Regional Park 335 Comment
  SD241704  Phyllostachys aurea Barbara Ertter 2001-5-26 17652 Contra Costa Stamm Unit of Antioch Dunes National Wildlife Refuge east of Antioch. Comment
  UCD108170  Pickeringia montana R. A. Pendleton 1923-3-30 s.n. Contra Costa Mt. Diablo. Comment
  UC692692  Pickeringia montana var. montana Mary L. Bowerman 1931-5-2 793 Contra Costa Eagle Point Ridge Mount Diablo (n end) Comment
  CAS-BOT-BC76965  Pilularia americana Lewis S. Rose 1940-4-30 40259 Contra Costa 4 mi. S of Antioch 30 Comment
  UCD136787  Pilularia americana Roman Gankin 1963-4-12 s.n. Contra Costa On west side of Holey Road, 3 miles southeast of Byron. Comment
  UC691929  Pinus attenuata Mary L. Bowerman 1932-3-20 1121 a Contra Costa toward top of middle ridge (in ne fork of creek); Mount Diablo, Inner Black Hills, Sycamore Creek Comment
  UC692077  Pinus attenuata Mary L. Bowerman 1932-3-20 1121 Contra Costa ne fork, toward top of middle ridge Sycamore Canyon Comment
  CAS-BOT-BC78542  Pinus coulteri Mrs. H. P. Bracelin 1931-4-5 210 Contra Costa Nortonville Comment
  JEPS46808  Pinus coulteri W. L. Jepson 1931-4-5 15726 Contra Costa Nortonville Comment
  JEPS47876  Pinus coulteri W. L. Jepson 1909-6-25 3115 Contra Costa Mitchell Canyon Mt. Diablo, Mitchell Canyon Comment
  UC440233  Pinus coulteri Mrs. H. P. Bracelin 1931-3-22 179 Contra Costa Nortonville Comment
  CAS-BOT-BC72777  Pinus sabiniana L. R. Abrams 1921-5-25 8057 Contra Costa Near summit of Mt. Diablo Comment
  UC692100  Pinus sabiniana Mary L. Bowerman 1933-5-10 2070 Contra Costa 100 ft below Muir Area Comment
  UC691271  Piperia Mary L. Bowerman 1938-6-30 3700 Contra Costa Blue Oak Flat Mount Diablo 822 Comment
  CDA15838  Piptatherum miliaceum R. M. Case 1999-10-22 PDR 1206166 Contra Costa San Francisco Bay Area; near Walnut Creek. 0 Comment
  CDA32621  Piptatherum miliaceum A. G. Murdock, D. G. Kelch 2004-6-4 316 Contra Costa Carquinez Strait Region; Martinez - Train Station. Comment
  CHSC67890  Plagiobothrys acanthocarpus James D. Jokerst 1988-3-21 2994 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
  UC24580  Plagiobothrys acanthocarpus J. Burtt Davy 1895-4-7 913 Contra Costa Antioch Comment
  UC79430  Plagiobothrys bracteatus Katharine Brandegee May, 1884 Contra Costa Antioch Comment
  UC2028186  Plagiobothrys bracteatus Barbara Ertter 1998-5-3 16058 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. Comment
  UC2029139  Plagiobothrys bracteatus Barbara Ertter with Alan Prather 2003-6-7 18199 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, fenced pond in bend of east Highland Ridge Trail, 1/4 miles E of junction Stone Corral Trail. Comment
  UC78032  Plagiobothrys canescens T. S. Brandegee May 1890 Contra Costa Antioch Comment
  CHSC67185  Plagiobothrys humistratus James D. Jokerst 1991-3-28 3228 Contra Costa Kellogg Watershed Inundation Zone at enclosure at 'The Windmills,' N of Livermore. Comment
  UC1069046  Plagiobothrys nothofulvus R. C. Wilson 1935-3-29 161 Contra Costa 1/2 mi w Deer Flat; Mt. Diablo Quadrangle Comment
  UCSC000623  Plagiobothrys nothofulvus R. C. Wilson 1935-3-19 137 Contra Costa 2 mi N.W. of Wall Pt. Wall Pt. - Mt Diablo 335 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
  UC1178520  Plagiobothrys tenellus Ethel Crum 1936-4-5 1742 Contra Costa two mi w Byron; South Coast Ranges 45 Comment
  CHSC67898  Plagiobothrys trachycarpus James D. Jokerst 1989-3-28 3054 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  UC1618201  Plagiobothrys trachycarpus Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8117 Contra Costa ca. 15 air mi. s.w. Stockton (w. & adjacent to Clifton Court Forebay); s.e. Contra Costa Co. Comment
  UC767584  Plagiobothrys trachycarpus R. F. Hoover 1941-4-12 4840 Contra Costa 1 mi. n. Lone Tree Valley Comment
  UC79220  Plagiobothrys trachycarpus Katharine Brandegee May 1886 Contra Costa near Antioch Comment
  JEPS116957  Plagiobothrys trachycarpus David Gowen 2008-4-6 842 Contra Costa East of Marsh Creek Road on Camino Diablo Road, on south side of road. Comment
  UC2029044  Plagiobothrys trachycarpus Barbara Ertter 2000-3-19 16893 Contra Costa southwest flank of Mount Diablo, east of Pine Ridge, below Wall Point Road Comment
  JEPS116833  Plagiobothrys undulatus David Gowen 2007-5-8 706 Contra Costa Briones Regional Park, around Maricich Lagoon. Comment
  JEPS116853  Plagiobothrys undulatus David Gowen 2007-4-16 677 Contra Costa Briones Regional Park in vernal depression northeast of Sindicich Lagoon. Comment
  CAS-BOT-BC6475  Plantago californica M. K. Curran 1883-1-1 s.n. Contra Costa Antioch Comment
  JEPS111999  Plantago coronopus A. G. Murdock 2004-6-4 318 Contra Costa Pacheco Marsh Salt marsh NE of Waterbird 5 Comment
  UCR263544  Plantago coronopus Barbara Ertter 1990-10-24 9684 Contra Costa San Francisco Bay Region, Martinez Regional Shoreline on Carquinez Strait 2 Comment
  POM61282  Plantago elongata subsp. pentasperma C. F. Baker 1903-4-27 2866 Contra Costa Byron. Comment
  RSA181409  Plantago erecta James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  SD131987  Plantago erecta W. L. Jepson 1923-4-22 9872 Contra Costa On hilltops. Mt. Diablo. 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
  RSA319067  Plantago major Patricia Wilder 1961-8-27 1070 Contra Costa Walnut Creek, near Calif. Hwy 24. 24 Stanley Court. 42 Comment
  JEPS78614  Plantago subnuda Walter Knight, L. R. Heckard, and Bert Johnson 1978-9-28 3298 Contra Costa Botany Cove, Browns Island Comment
  UC367125  Platanus racemosa J. G. Lemmon and wife June 1883 Contra Costa John Muir's farm Martinez Comment
  UCD143180  Platanus racemosa Robt. Branstead 1934-3-30 s.n. Contra Costa SW slope of Mt. Diablo. 426 Comment
  CAS-BOT-BC6458  Platystemon californicus Mary Katherine (Mrs.) Brandegee 1889-4-1 s.n. Contra Costa Antioch Comment
  UC56196  Platystemon californicus H. M. Hall 1901-3-16 1654 Contra Costa Point Richmond; region of San Francisco Bay, Point Richmond Comment
  POM203638  Platystemon californicus var. californicus J. T. Howell 1933-5-14 11277 Contra Costa Hills east of St. Mary's college Comment
  UC1607967  Plectritis ciliosa Donald G. Nelson 1937-3-30 463 Contra Costa along Marsh Creek Rd. between Clayton and Byron Comment
  UC2027803  Plectritis ciliosa Barbara Ertter with Holly Forbes 1997-4-20 15556 Contra Costa North base of Mount Diablo, trail to Back Creek from Mitchell Canyon trailhead. Comment
  UC55888  Plectritis macrocera H. M. Hall 1900-3-23 Contra Costa San Francisco Bay Region, San Pablo Creek San Pablo Creek; San Francisco Bay Region, San Pablo Creek Comment
  UC65024  Plectritis macrocera Miss Carlotta Case July, 1904 Contra Costa Muir Station Comment
  UC691521  Plectritis macrocera Mary L. Bowerman 1931-5-7 807 Contra Costa Mount Diablo, North Peak North Peak; Mount Diablo, North Peak Comment
  UC2027993  Plectritis macrocera Barbara Ertter with Tony Morosco 1998-4-12 16025 Contra Costa Connector trail on north side of Mount Olympia, north side of Mount Diablo. Comment
  UC416755  Plectritis macrocera Harley P. Chandler 1901-3-22 883 Contra Costa near Fish Ranch Comment
  UC1100419  Pleuropogon californicus Peter Kamb, Francia Chisaki, Galen Smith 1951-4-14 1978 Contra Costa 7 mi n of Walnut Creek (0.2 mi s of junction of highways 4 and 21) Comment
  CDA8486  Pluchea odorata D. G. Kelch, A. G. Murdock 2004-9-2 4 .334 Contra Costa Carquinez Strait Region; Pacheco Marsh. Marsh east of Martinez and I-680 and east of lone tree Marsh. Comment
  CAS-BOT-BC356114  Pluchea odorata Walter Knight; Harry Reeves 1979-8-25 3405 Contra Costa East of reservoir, Contra Loma Regional Park. Near Antioch 22 Comment
  JEPS40446  Pluchea odorata var. odorata R. F. Hoover 1937-8-31 2703 Contra Costa Avon Comment
  UC1024731  Poa annua Leo Whitney 1935-4-21 3059 Contra Costa Corral Hollow Comment
  UC691192  Poa annua Mary L. Bowerman 1933-3-25 1764 Contra Costa off Stone Valley Emmons Canyon; Mt. Diablo Comment
  CAS-BOT-BC246615  Poa howellii Edward Lee 1936-4-19 2007 Contra Costa Northeast slope of the island. Red Rock, San Francisco Bay Comment
  POM300627  Poa howellii Mary L. Bowerman 1933-4-22 1897 Contra Costa Inner Black Hills just west of Cave Point Comment
  UC38696  Poa secunda subsp. secunda J. Burtt Davy 1895-4-8 898 Contra Costa Antioch Comment
  UC691169  Poa secunda subsp. secunda Mary L. Bowerman 1933-6-3 2237 Contra Costa summit Meridian Peak (Ransom Point trail); Mt Diablo Comment
  UC692472  Poa secunda subsp. secunda Mary L. Bowerman 1935-5-18 3028 Contra Costa n of summit parking area Meridian Peak; Mt Diablo 1036 Comment
  UC768489  Poa secunda subsp. secunda R. F. Hoover 1941-4-11 4834 Contra Costa Marsh Creek Canyon Comment
  SEINET883324  Poaceae F. W. Gould 1941-1 1304 Contra Costa near San Francisco Bay at Albany. Comment
  UC1795893  Pogogyne serpylloides Barbara Ertter, Lisa Schultheis 1995-4-27 14017 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; head of west facing scrub-filled draw (east of golf-course). 182 Comment
  JEPS65184  Pogogyne zizyphoroides L. R. Heckard 1971-4-15 2483 Contra Costa At intersection of Holey Road, South of Byron. Comment
  JEPS78621  Polygonum amphibium var. emersum Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3283 Contra Costa Botany Cove Browns Island Comment
  UCD150900  Polygonum argyrocoleon James A. Neilson Jr. 1972-10-22 3510 Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 0 Comment
  UC1784203  Polygonum persicaria Ethel Crum 1930-9-29 862 Contra Costa Marsh Creek Road to Holt 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
  UC1478304  Polypodium calirhiza Alan R. Smith with Tom Lemieux 1981-11-19 826 Contra Costa n slope Mt. Diablo (creekside ravine along North Gate Rd., 3.6 mi w of (below) Park HQ (South Gate Rd. junction); Mt. Diablo State Park 640 Comment
  UC1948930  Polypodium calirhiza William J. Ferlatte, L. Maynard Moe 1970-4-27 1235 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC921105  Polypodium calirhiza Ethel Crum 1930-4-14 570 Contra Costa Mitchell Canyon; Mt. Diablo Comment
  UC692121  Polypodium calirhiza Mary L. Bowerman 1935-3-15 2736 Contra Costa e fork Arroyo del Cerro; Mt. Diablo 262 Comment
  UCR254829  Polypogon Peter Rubtzoff 1968-9-18 5965 Contra Costa North Gate Road, c. 5 miles NW of Mt. Diablo State Park north entrance 58 Comment
  UC50640  Polypogon imberbis Jos. Burtt Davy 6662 Contra Costa Salt-marsh near Martinez Comment
  JEPS100034  Polypogon monspeliensis A. Langston 2003-6-6 AL 36 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  POM264543  Polypogon monspeliensis A. A. Beetle 1941-6-24 1750 Contra Costa Point Richmond on San Francisco Bay. 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-BC102382  Populus fremontii Ira L. Wiggins 1930-4-18 4602 Contra Costa Levee bank, S.E. side of Jersey Island Comment
  CAS-BOT-BC102383  Populus fremontii Walter Knight; Irja Knight; J. T. Howell; E. McClintock; et al. 1978-9-5 3223 Contra Costa Browns Island Comment
  UC406993  Populus fremontii subsp. fremontii Ira L. Wiggins 1930-4-18 4602 Contra Costa se side Jersey Island (Levee bank); se side of Jersey Island Comment
  UC846002  Populus fremontii subsp. fremontii Lewis S. Rose 1941-3-13 41028 Contra Costa 7 mi w Byron (Marsh Creek); Marsh Creek Comment
  CAS-BOT-BC267113  Potamogeton Walter Knight; L. R. Heckard; B. Johnson 1978-9-28 3272 Contra Costa Mouth of Crooked Slough, Browns Island Comment
  JEPS99587  Potamogeton pectinatus Mary Bowerman 1975-9-14 Contra Costa Mount Diablo, Hidden Pond. Comment
  JEPS46554  Proboscidea G. Thomas Robbins 1959-8-1 4114 Contra Costa roadside berm of frontage road just s Mt. Diablo Blvd. ((about 0.5 mi e of concrete bridge at Charles Hill and about 0.2 mi w of jct. of Hidden Valley Rd.), 2 mi w of Lafayette) 144 Comment
  CAS-BOT-BC158576  Prunus Walter Knight 1965-3-1 s.n. Contra Costa Antioch Dunes Comment
  UC2027948  Prunus cerasifera Barbara Ertter 1997-9-7 15791 Contra Costa North side Mount Diablo, cabin site on Donner Creek, in persisting orchard. Comment
  CDA33067  Prunus dulcis D. G. Kelch 2010-10-5 10 .415 Contra Costa The Delta; Just east of Antioch bridge. Comment
  JEPS112076  Prunus dulcis D. G. Kelch 2003-3-21 03 .43 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  UC1784905  Prunus dulcis Barbara Ertter, Chris Thayer 1995-4-25 s. n. Contra Costa Sycamore Creek on SE foot of Mount Diablo Comment
  UC2028038  Prunus dulcis Barbara Ertter 1998-3-7 15931 Contra Costa Dan Cook Canyon on southwest side of Mount Diablo. Comment
  JEPS44968  Prunus subcordata W. L. Jepson 1907-4-26 2648 c Contra Costa Mitchell Canyon Mt Diablo Comment
  UC691124  Prunus subcordata Mary L. Bowerman 1932-4-9 1334 Contra Costa Mount Diablo, Muir Area Mount Diablo; , Muir Area Comment
  UC2027995  Prunus subcordata Barbara Ertter with Tony Morosco 1998-4-12 16023 Contra Costa Mount Olympia on north side of Mount Diablo, midway down Olympia Road from summit. Comment
  UC1614254  Prunus virginiana var. demissa Charles M. Belshaw 1935-6-10 695 Contra Costa Morgan Territory Road Comment
  JEPS111736  Pseudognaphalium beneolens D. G. Kelch 2004-9-2 04 .345 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Steep road-cut. Alhambra Road. South of Green St. 3 Comment
  JEPS111514  Pseudognaphalium californicum D. G. Kelch 2005-5-13 05 .277 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 66 Comment
  SEINET9295311  Pseudognaphalium leucocephalum Unknown 1950-7-29 624 Contra Costa Waste ground along Santa Fe RR. 1 mi N of Richmond, gravelly soil Plant sent to USCH for identification. Query letter included on specimen. Comment
  JEPS111714  Pseudognaphalium luteoalbum D. G. Kelch 2004-6-6 04 .223 Contra Costa Martinez - Train Station Downtown Martinez. 2 Comment
  UC1618328  Pseudognaphalium luteoalbum Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10701 Contra Costa w end of island n Pittsburg (near confluence of Sacramento and San Joaquin river opposite Pittsburg Marina); Browns Island Comment
  UC1795848  Pseudognaphalium luteoalbum Barbara Ertter, Tony Morosco 1996-1-15 14546 Contra Costa Mount Diablo (southeast side) trail from Curry Point to Frog Pond; streamlet from spring crossing road below and slightly west of Hidden Pond, clay substrate. 487 Comment
  CAS-BOT-BC356972  Pseudognaphalium luteoalbum Walter Knight 1977-7-20 s.n. Contra Costa East Bay Regional Park District. On Briones Ridge at about 1,000 ft elev. Briones Regional Park 304 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
  UC2036954  Pseudognaphalium luteoalbum Mary L. Bowerman 1946-2-10 4080 Contra Costa Weed around old C.C.C. camp buildings (not in use at moment). Comment
  CAS-BOT-BC357445  Pseudognaphalium ramosissimum Mary L. Bowerman 1938-11-19 3735 Contra Costa Mount Diablo. Mitchell Canyon 259 Comment
  UC1795691  Pseudognaphalium thermale Barbara Ertter, Kristin Ertter 1995-7-11 14469 Contra Costa Pine Creek on west side of Mt. Diablo southwest of Walnut Creek; Diablo Foothills Regional Park, on rock slope. Comment
  JEPS111756  Psilocarphus tenellus D. G. Kelch 2005-5-1 05 .204 Contra Costa Crockett - Edwards Canyon 100 Comment
  POM138612  Ptelea baldwinii subsp. crenulata C. F. Baker 1903-4-28 2943 Contra Costa Mitchell's Canyon, Mt. Diablo. Comment
  POM138987  Ptelea baldwinii subsp. crenulata H. M. Hall 1916-8-17 10277 Contra Costa Upper Horse Valley. 6 miles S of Antioch. 213 Comment
  POM203037  Ptelea baldwinii subsp. crenulata J. T. Howell 1934-4-8 11811 Contra Costa 7 miles from Clayton on road to Livermore. Comment
  CAS-BOT-BC148621  Ptelea crenulata C. F. Baker 1903-4-28 2943 Contra Costa Mitchell's Canyon [canon], Mt. Diablo Comment
  CAS-BOT-BC148636  Ptelea crenulata W. W. Carruth 1903-5-10 s.n. Contra Costa Mitchell Canyon, Mt. Diablo Comment
  CAS-BOT-BC148637  Ptelea crenulata Lewis S. Rose 1936-4-24 36147 Contra Costa Marsh Creek, 6 mi. E of Clayton 60 Comment
  CAS-BOT-BC148638  Ptelea crenulata Edw. L. Greene 1886-5-24 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC148643  Ptelea crenulata V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Val. 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
  UC1602321  Ptelea crenulata R. W. Lundh 1932-9-3 156 Contra Costa 1 mi n Mt. Diablo, North Peak; Mt. Diablo Quad. 609 Comment
  UC571101  Ptelea crenulata H. L. Mason 1928-4-1 4270 Contra Costa hills n Mount Diablo (canyon back of Antioch hills) Comment
  UC85434  Ptelea crenulata Katharine Brandegee 1907-6-16 Contra Costa hills back of Antioch Comment
  CAS-BOT-BC148642  Ptelea crenulata H. E. McMinn 1922-6-2 95 Contra Costa In ravine on north slope of Mt. Diablo Comment
  CAS-BOT-BC148645  Ptelea crenulata V. Rattan; Dr. Mary Curran 1883-6-1 s.n. Contra Costa Unspecified Comment
  SBBG3977  Ptelea crenulata J. M. Tucker 1941-8-28 383 Contra Costa Curry Cyn, 3 mi S of jct of Curry Cyn Rd with Clayton-Byron Rd Comment
  UC2062647  Ptelea crenulata Barbara Ertter with Steve Matson 2003-11-11 Contra Costa Mount Diablo State Park, Deer Flat Road on north side of Moses Rock Ridge. Comment
  UC2043241  Pteridium aquilinum var. pubescens Barbara Ertter with David Gowen 2015-2-22 22227 Contra Costa Alder Creek below Green Ranch at road crossing, Mount Diablo SE of summit. Comment
  UC692115  Pteridium aquilinum var. pubescens Mary L. Bowerman 1930-8-24 426 Contra Costa lower trail w of stream Mitchell Canyon; Mt. Diablo 259 Comment
  UC1198069  Pterostegia drymarioides Joseph P. Tracy 1934-4-30 13191 Contra Costa near Lafayette 152 Comment
  UC692210  Pterostegia drymarioides Mary L. Bowerman 1931-3-29 617 Contra Costa e. end Cave Point Ridge; Mt. Diablo Comment
  UCD35992  Pterostegia drymarioides Beecher Crampton 1949-4-1 422 Contra Costa Contra Costa County, Moraga Ridge. 60 Comment
  UCD92236  Puccinellia simplex Beecher Crampton 1968-3-27 8233 Contra Costa SE corner, ca. 3.5 miles south of Byron. Comment
  UC2042941  Pyracantha angustifolia Barbara Ertter 1991-5-12 9811 Contra Costa Point Isabel Regional Shoreline in SW corner of El Cerrito, on San Francisco Bay. Comment
  UC2027759  Pyracantha angustifolia Barbara Ertter 1997-1-5 15433 Contra Costa Ygnacio Valley Road crossing Lime Ridge on northwest side of Mount Diablo. Comment
  UC5818  Quercus H. P. Chandler 1900-3-24 Contra Costa Orinda Prak Mount Diablo Comment
  UCSC009992  Quercus Al Keuter 2014-5-23 00 097 B Contra Costa Along Reliez Valley Road, Lafayette 72 Comment
  UCSC010010  Quercus Al Keuter 2014-5-23 00 097 A Contra Costa Along Reliez Valley Road, Lafayette 72 Comment
  CAS-BOT-BC104161  Quercus X morehus H. E. McMinn 82 Contra Costa N slope of Mt. Diablo near summit Comment
  UC691316  Quercus X morehus Mary L. Bowerman 1931-9-27 1048 Contra Costa ne side North Peak; Mount Diablo Comment
  CAS-BOT-BC45656  Quercus agrifolia John Thomas Howell 1950-7-5 26638 Contra Costa Nortonville Comment
  CAS-BOT-BC45659  Quercus agrifolia Alice Eastwood 1914-2-24 3733 Contra Costa Antioch Comment
  CAS-BOT-BC45660  Quercus agrifolia Mary L. Bowerman 1930-10-25 495 Contra Costa Near Sloan Road, Mount Diablo Comment
  CHSC24131  Quercus agrifolia M. A. Callahan 1976-4-11 1 Contra Costa 45 ft. nnw of house at 1976 Mohawk Dr., Pleasant Hill. Growing on steep hillside; w side Oak Wd. 121 Comment
  POM210976  Quercus agrifolia Joseph A. Ewan 1933-10-15 8027 Contra Costa SW slope of Mt Diablo 1067 Comment
  UC1084391  Quercus agrifolia G. Thomas Robbins 1937-4-25 147 Contra Costa 2 mi e Alamo (on road to Mt. Diablo) Comment
  UCD45129  Quercus agrifolia John Thomas Howell 1950-7-5 26638 Contra Costa Small tree, Nortonville, Contra Costa Co. Comment
  UC5471  Quercus agrifolia A. Resmond 1862-10-24 1474 Contra Costa near summit between Oakland and Walnut Creek Comment
  UC691282  Quercus chrysolepis Mary L. Bowerman 1931-5-16 852 Contra Costa s side Meridian Peak summit; Mount Diablo 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
  RSA476582  Quercus douglasii Bonnie C. Templeton 1962-6-20 s.n. Contra Costa Mount Diablo Comment
  CAS-BOT-BC79607  Quercus durata Mary L. Bowerman 1932-10-16 1632 Contra Costa Mount Diablo. Donner Canyon Trail Comment
  UC1135558  Quercus durata N. French 1935-7-25 645 Contra Costa Mt. Diablo Mt. Diablo Quad. 670 Comment
  UC1135564  Quercus durata R. C. Wilson 1935-3-29 164 Contra Costa 1 mi w Deer Flat; Mount Diablo 685 Comment
  CDA39042  Quercus garryana D. G. Kelch 2011-6-5 11 .57 Contra Costa Carquinez Strait; South of Crockett, south of Cummings Skyway. Comment
  UCD17420  Quercus garryana E. Dean; M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 656 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
  UCR141757  Quercus garryana Ellen Dean, Mary L. Bowerman, Barbara Ertter, J. M. Tucker, Joan Kerbavaz 2000-9-13 657 Contra Costa Mt. Diablo State Park, Fossil Ridge, along fire road that begins at the parking lot SE of Rock City and climbs onto Fossil Ridge in southeasterly direction, c. 0.1 mi from Rock City, slightly downslope of road 488 Comment
  CAS-BOT-BC94291  Quercus garryana Mary L. Bowerman 1930-10-19 493 Contra Costa Fossil Ridge S of Garden of the Gods Comment
  CDA23104  Quercus kelloggii D. G. Kelch, D. A. Weinstein 2007-10-11 s.n. Contra Costa Carquinez Strait; Canada de Cierbo, just S of Crockett. Comment
  RSA388013  Quercus palmeri J. M. Tucker 1981-4-25 4453 -B Contra Costa Antonio Souza Ranch, SW of Byron. 309 Comment
  UCD81370  Quercus palmeri J. M. Tucker 1981-4-25 4453 -E Contra Costa Antonio Souza Ranch southwest of Byron. Mt. Diablo Meridian. 309 Comment
  UCR141754  Quercus parvula var. shrevei Ellen Dean, Et al. 2000-9-13 653 Contra Costa City of El Sobrante Ridge, upslope of the terminus of Heavenly Ridge Rd., just south of junction of Heavenly Ridge Trail and Manzanita Trail, along Manzanita Trail 213 Comment
  UC2070466  Quercus parvula var. shrevei Barbara Ertter 2000-9-2 17523 Contra Costa Sobrante Ridge Preserve in hills southeast of El Sobrante, Manzanita Trail near Heavenly Ridge Trail junction. Comment
  CAS-BOT-BC104713  Quercus wislizeni C. Keefer 1922-9-25 s.n. Contra Costa Moraga Ridge Comment
  CAS-BOT-BC104715  Quercus wislizeni H. E. McMinn s.n. Contra Costa near summit of Mt. Diablo Comment
  CDA31191  Quercus wislizeni D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .228 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  JEPS37842  Quercus wislizeni W. L. Jepson 1923-6-10 9983 Contra Costa near divide from Clayton (Marsh Creek); Mt. Diablo, Marsh Creek Comment
  POM301008  Quercus wislizeni Mary L. Bowerman 1934-3-18 2480 Contra Costa Russelmann Park; end of road Comment
Read comments
Aug 11 2011
  UC1135852  Quercus wislizeni R. C. Wilson 1935-3-13 127 Contra Costa 1.5 mi w Cave Pt.; Mt. Diablo Quad. 563 Comment
  UC1543000  Quercus wislizeni Donald G. Nelson 1938-11-6 586 Contra Costa about 1 mi beyond Marsh Creek Springs (road cut in Marsh Creek Highway, ne of Mt. Diablo) Comment
  UC1543170  Quercus wislizeni Donald G. Nelson 1938-11-6 587 Contra Costa about 1 mi beyond Marsh Creek Springs (Marsh Creek Highway, ne of Mt. Diablo) Comment
  UCD47497  Quercus wislizeni John M. Tucker 1946-3-4 1378 Contra Costa East side of Redwood Peak, Oakland hills, Contra Costa County, California. Comment
  CAS-BOT-BC104712  Quercus wislizeni Alice Eastwood 1921-8-6 11043 Contra Costa Mt. Hamilton Comment
  UCR263547  Ranunculus aquatilis var. capillaceus Barbara Ertter, Tony Morosco 1998-7-11 16365 Contra Costa San Francisco Bay Region, North base of Mount Diablo, small pond on north side of Bruce Lee Road east of Mitchell Canyon staging area 183 Comment
  SBBG33501  Ranunculus aquatilis var. diffusus A. D. E. Elmer -May-1903 Contra Costa Mount Diablo Comment
  CAS-BOT-BC379109  Ranunculus aquatilis var. diffusus A. D. E. Elmer 1903-5-1 4318 Contra Costa Mount Diablo Comment
  CAS-BOT-BC379110  Ranunculus aquatilis var. diffusus A. D. E. Elmer 1903-5-1 4318 Contra Costa Mount Diablo Comment
  RSA224309  Ranunculus aquatilis var. hispidulus Mary L. Bowerman, Walter Knight, I. Knight 1968-6-4 2331 Contra Costa floating on Frog Pond Mt. Diablo State Park Comment
  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
  JEPS99974  Ranunculus californicus S. O'Neil 2003-2-18 SEO 3 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  POM268431  Ranunculus californicus Lyman Benson 1931-3-18 2664 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  UC1300986  Ranunculus californicus Helen K. Sharsmith 1962-3-25 4912 Contra Costa hills between Happy Valley and Alhambra Valley; San Francisco Bay Region 304 Comment
  UC400155  Ranunculus californicus Ynes Mexia 1929-4-21 2377 Contra Costa Moraga Valley Comment
  RSA399401  Ranunculus californicus H. de Forest 1930-3-28 s.n. Contra Costa [Unspecified] Comment
  RSA0068489  Ranunculus californicus var. californicus Katie Gallagher, Nick Jensen 2014-4-26 185 Contra Costa Las Trampas Regional Wilderness. 396 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
  UC9455  Ranunculus canus var. canus J. Burtt Davy 1895-4-7 925 Contra Costa Antioch Comment
  POM268450  Ranunculus canus var. laetus Lyman Benson 1935-3-16 6273 Contra Costa Mitchell Canyon near Clayton; Mt. Range: Mt. Diablo; Watershed: Walnut Creek. 244 Comment
  UC1607964  Ranunculus hebecarpus Donald G. Nelson 1937-4-29 507 Contra Costa Road from Pinole south towards Alhambra Road Pinole Comment
  UC9445  Ranunculus hebecarpus Geol. Survey 1862-1 1049 Contra Costa Mt. Diablo; foothills Comment
  SEINET3816544 Image available Ranunculus hebecarpus Lewis S. Rose 1934-3-21 34071 Contra Costa Marsh Creek, 6 miles east of Clayton. Comment
  POM300584  Ranunculus muricatus Mary L. Bowerman 1933-4-15 1844 Contra Costa Canyon S of Arroyo del Cerro Comment
  UCSB2072  Ranunculus occidentalis Hand, B. 1960-4-9 Contra Costa 2.9 miles from south gate on Mt. Diablo Road, Mt. Diablo. Comment
  RSA125860  Ranunculus occidentalis var. eisenii G. R. Campbell 1956-4-6 17 Contra Costa Between Round Top and summit of Mt. Diablo. 305 Comment
  POM181430  Raphanus sativus I. L. Wiggins 1930-4-18 4610 Contra Costa Jersey Island. Comment
  UC407038  Raphanus sativus Ira L. Wiggins 1930-4-18 4610 Contra Costa Jersey Island Comment
  JEPS112066  Rhamnus californica subsp. californica D. G. Kelch 2003-3-21 03 .69 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 2 miles west of Martinez Contra Costa County CA. Grassy hill above cottonwood tree. Just south of end gate of Carquinez Scenic Drive 40 Comment
  JEPS41992  Rhamnus californica subsp. californica W. L. Jepson 1895-9-7 13977 Contra Costa Grizzly Peak Berkeley Hills Comment
  UC692594  Rhamnus tomentella subsp. tomentella Mary L. Bowerman 1932-11-19 1657 Contra Costa Lower Grapevine Spring, at head of spring Mount Diablo Comment
  JEPS98405  Rhaponticum repens Bob Case 2001-10-2 Contra Costa East Bay Municipal Utilities District right-of-way on West Hookston Road Pleasant Hill, SE Comment
  CAS-BOT-BC200695  Rhus aromatica Peter H. Raven; H. L. Mason; R. Ornduff; et al. 1957-4-11 10625 Contra Costa Curry Canyon, 4.0 mi. s. of Recreation Ground Comment
  UC466053  Ribes Tracy J. Storer 1912-7-13 Contra Costa Mt. Diablo 914 Comment
  CDA8368  Ribes californicum D. G. Kelch, A. G. Murdock 2005-1-16 5 .001 Contra Costa Carquinez Strait; Dutra fire road. Comment
  CAS-BOT-BC92923  Ribes californicum var. californicum Carl Meyer 1928-2-22 285 Contra Costa Mount Diablo. Comment
  CDA25524  Ribes californicum var. californicum D. G. Kelch, A. G. Murdock 2003-2-7 3 .036 Contra Costa Carquinez Strait Region; Franklin Canyon. Comment
  CHSC20642  Ribes divaricatum Carol C. Getzinger 1964-4-26 51 Contra Costa Wildcat Canyon Road 1.3 miles from junction with Spruce Street and Grizzly Peak Boulevard. 152 Comment
  JEPS116744  Ribes divaricatum var. pubiflorum David Gowen 2007-3-22 666 Contra Costa Huckleberry Preserve at the south end of the parking lot. Comment
  UC11525  Ribes divaricatum var. pubiflorum J. Burtt Davy 1895-4-13 997 Contra Costa Lafayette Comment
  CAS-BOT-BC168924  Ribes malvaceum John Thomas Howell 1923-11-12 243 Contra Costa Mt. Diablo Comment
  UC570820  Ribes malvaceum Herbert L. Mason 1926-3-7 2708 Contra Costa Summit Mt. Diablo Comment
  JEPS79394  Ribes menziesii Edward Lee with Annetta Carter 1936-5-24 2167 Contra Costa 10 mi from Marsh Creek Road; Mt. Diablo, Morgan Territory Comment
  UC692236  Ribes menziesii Mary L. Bowerman 1931-4-19 739 Contra Costa Deer Flat, near spring by trail at upper end of flat Mount Diablo Comment
  UC692436  Ribes menziesii Mary L. Bowerman 1932-9-3 1541 Contra Costa Meridian Peak summit, by trail leading s from the house Mount Diablo Comment
  CAS-BOT-BC206015  Ribes menziesii Mary L. Bowerman 1931-4-19 739 Contra Costa Mount Diablo. Deer Flat Comment
  JEPS116868  Ribes menziesii David Gowen 2007-9-1 790 Contra Costa Huckleberry Regional Preserve. Along trail descending to canyon bottom near trail junction above creek. Comment
  UC697154  Rigiopappus leptocladus Mary L. Bowerman 1935-4-22 2890 Contra Costa ridge w Pioneer Road (w of Old Stage Road); Mount Diablo 853 Comment
  UC1050660  Rondeletia gratissima N. Floy Bracelin 1943-5-23 1178 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS78605  Rorippa palustris var. occidentalis Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3278 Contra Costa Crooked Slough Browns Island, Crooked Slough Comment
  CAS-BOT-BC147412  Rosa californica C. Keefer 1922-9-25 s.n. Contra Costa [Morago] Moraga Ridge Comment
  UC691165  Rosa californica Mary L. Bowerman 1930-8-24 438 Contra Costa by road Mount Diablo, Mitchell Canyon Comment
  OBI70554  Rosa gymnocarpa D. G. Kelch, D. A. Weinstein 2008-4-15 8 .046 Contra Costa Carquinez Strait: S Port Costa along Mckewen rd ( 137 Comment
  CAS-BOT-BC147206  Rubus parviflorus Mary L. Bowerman 1933-5-19 2140 Contra Costa Below Morgan Sulphur Spring 335 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
  POM300578  Rumex acetosella Mary L. Bowerman 1935-5-18 3016 Contra Costa Road above Indian Ceremonial Spring, roadbank at hairpin turn Comment
  JEPS99578  Rumex conglomeratus Mary Bowerman 1995-6-4 Contra Costa Mount Diablo, Pine Pond Comment
  JEPS112017  Rumex pulcher Dean G. Kelch and Andrew G. Murdock 2004-5-28 AGM 267 Contra Costa Refugio Valley. Comment
  JEPS99968  Rumex pulcher G. Smick 2003-5-10 GAS 206 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS107084  Rumex salicifolius var. crassus Barbara Ertter, Brad Olson 1994-5-7 12762 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge. Edge of San Francisco Bay. Comment
  UC692209  Rumex salicifolius var. salicifolius Mary L. Bowerman 1935-10-26 3346 Contra Costa 2 rd mi e Mount Diablo west entrance; Mount Diablo 228 Comment
  CDA42433  Rupertia physodes D. G. Kelch 2012-5-27 12 .073 Contra Costa Carquinez Strait Region; Pinole Valley Park. Comment
  CAS-BOT-BC454141  Ruppia maritima J. W. Congdon 1889-6-20 10 Contra Costa Byron Springs Comment
  JEPS99564  Sagina apetala Mary Bowerman 1978-4-17 Contra Costa Mount Diablo, Back Canyon 228 Comment
  UC692535  Sagina decumbens subsp. occidentalis Mary L. Bowerman 1933-5-8 2028 Contra Costa w. end of second small flat n. of Rock City Camp Comment
  CAS-BOT-BC445700  Sagittaria latifolia Vincent Jones 1920-8-29 s.n. Contra Costa Orwood Comment
  CDA23461  Salicornia pacifica T. C. Fuller 1965-11-24 14323 Contra Costa South side of Byron Hot Springs Road, 0.6 mile southwest of Byron-Tracy Highway, ca. 1 mile southwest of Byron. 0 Comment
  JEPS22093  Salicornia virginica G. Thomas Robbins 1958-7-19 3904 Contra Costa about 0.75 mi s Pt. San Pablo, Potrero San Pablo, Richmond; San Francisco Bay, Point Orient Comment
  CAS-BOT-BC129913  Salix bonplandiana J. Burtt Davy 1895-4-13 1005 Contra Costa Near Lafayette. Comment
  CAS-BOT-BC129915  Salix bonplandiana Mary L. Bowerman 1933-3-25 1760 Contra Costa Canyon back of Diablo Stock Farm (Stone Valley), in streambed - Mount Diablo Comment
  CAS-BOT-BC103737  Salix exigua Walter Knight; Irja Knight; John Thomas Howell; Elizabeth McClintock 1978-9-5 3218 Contra Costa Browns Island Comment
  UC650583  Salix exigua var. hindsiana Ira L. Wiggins 1930-4-18 4587 Contra Costa levee banks Jersey Isl. Comment
  UC691958  Salix exigua var. hindsiana Mary L. Bowerman 1935-5-30 3080 Contra Costa by Donner Canyon stream Donner Canyon; Mt. Diablo, Donner Canyon 152 Comment
  CAS-BOT-BC107897  Salix gooddingii Virginia I. Dains; Walter Knight 1986-8-8 5491 Contra Costa Jct. Rock S1 & Werner Cut Comment
  CAS-BOT-BC104086  Salix hindsiana Mary L. Bowerman 1935-5-30 3080 Contra Costa By Donner Canyon stream 152 Comment
  CAS-BOT-BC104087  Salix hindsiana Mary L. Bowerman 1935-5-30 3081 Contra Costa By Donner Canyon stream 152 Comment
  CAS-BOT-BC104088  Salix hindsiana Ira L. Wiggins 1930-4-18 4587 Contra Costa Levee banks, Jersey Island Comment
  JEPS112251  Salix laevigata D. G. Kelch 2004-5-7 04 .198 Contra Costa Canada del Cierbo 40 Comment
  JEPS112255  Salix laevigata D. G. Kelch 2005-5-13 05 .244 Contra Costa Martinez South of oil refinery along Railroad tracks Comment
  UC691925  Salix laevigata Mary L. Bowerman 1931-3-14 566 Contra Costa e side Riggs Canyon; Mt. Diablo, Riggs Canyon Comment
  UC2028239  Salix laevigata Barbara Ertter, Tony Morosco 1998-9-18 16428 Contra Costa Lime Ridge Open Space northwest of Mount Diablo. Comment
  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
  POM300611  Salix lasiolepis Mary L. Bowerman 1931-2-8 513 Contra Costa Mt. Diablo. By road. 762 Comment
  UC692057  Salix lasiolepis Mary L. Bowerman 1931-2-22 518 Contra Costa Sycamore Canyon; mouth Comment
  CAS-BOT-BC129552  Salix lasiolepis var. lasiolepis Alice Eastwood 1914-2-24 3730 Contra Costa Antioch Comment
  CAS-BOT-BC129553  Salix lasiolepis var. lasiolepis Walter Knight 1965-3-1 899 Contra Costa Antioch dunes, by water's edge - north side of dunes Comment
  CAS-BOT-BC129555  Salix lasiolepis var. lasiolepis Mary L. Bowerman 1932-8-27 1519 Contra Costa Spring south of Turtle Rock (by a large group of willows) - Mount Diablo Comment
  CAS-BOT-BC180753  Salsola tragus Walter Knight; Joanne Dean 1978-8-14 3114 Contra Costa Browns Island Comment
  JEPS59865  Salsola tragus W. L. Jepson 1923-10-4 10212 a Contra Costa orchards near Antioch Comment
  CAS-BOT-BC180752  Salsola tragus Peter Rubtzoff 1951-10-7 829 Contra Costa Sand duens along lower San Joaquin River, east of Antioch Comment
  CAS-BOT-BC220706  Salvia D. M. Curran 1882-8-2 s.n. Contra Costa Antioch Comment
  SEINET7718207  Salvia carduacea Chesnut, Drew 1889-4-18 Contra Costa Antioch Comment
  JEPS62662  Salvia columbariae Mrs. E. L. Mossman 1931-4-21 149 Contra Costa Grizzly Peak; Berkeley Hills 487 Comment
  UC634924  Salvia columbariae H. L. Mason 1929-3-29 5121 Contra Costa Mt. Diablo 762 Comment
  CDA40980  Salvia leucophylla D. G. Kelch, A. G. Murdock 2005-5-1 5 .186 Contra Costa Carquinez Strait; Crockett; Edwards Canyon. Comment
  UC25730  Salvia mellifera H. N. Bolander Apr 1866 6317 Contra Costa Mount Diablo Comment
  UC691515  Salvia mellifera Mary L. Bowerman 1932-3-6 1104 Contra Costa mouth of Sycamore Canyon; Mount Diablo Comment
  CAS-BOT-BC235007  Sambucus Alice Eastwood 1921-4-18 10304 Contra Costa Antioch Comment
  UC1051310  Sambucus caerulea N. Floy Bracelin 1941-6-22 1419 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California 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
  RSA477576  Sambucus mexicana B. C. Templeton 1962-6-10 s.n. Contra Costa Mt Diablo. Comment
  UC1125352  Sambucus mexicana C. M. Belshaw 1936-2-16 1593 Contra Costa 2 1/2 mi nne Orinda; Concord Quadrangle, Briones Valley Comment
  UCR16102  Sambucus mexicana Rex Sanders 1973-5-22 s.n. Contra Costa San Francisco Bay Region, El Sobrante, wash crossing Valley View Rd. at corner with Jo-Lin Ct. 45 Comment
  UCD150884  Sambucus nigra subsp. caerulea James A. Neilson Jr. 1972-11-9 s.n. Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 Comment
  UCSB4634  Sanicula bipinnata Kamb, Peter; Chisaki, Francia 1950-3-18 Contra Costa Head of Pine Canyon, Mt. Diablo 533 Comment
  JEPS100131  Sanicula bipinnatifida G. Smick 2003-3-25 GAS 109 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1561208  Sanicula bipinnatifida Barbara Ertter with John Little 1989-4-2 8108 Contra Costa El Cerrito, at s end of Hillside Park Hillside Park; El Cerrito, Hillside Park Comment
  UC2062644  Sanicula bipinnatifida Barbara Ertter with Dan Norris 2001-4-8 17588 Contra Costa Lime Ridge Open Space east of Walnut Creek. Comment
  RSA0033930  Sanicula crassicaulis Barbara Ertter, Richard K. Brummitt 1998-5-6 16087 Contra Costa Lower Donner Canyon Road on north base of Mount Diablo, ca. 1/2 miles south of Donner cabin site. 304 Comment
  UC536009  Sanicula crassicaulis Laurence S. Jones 1934-4-8 55 Contra Costa Mount Diablo approximately 3 mi surface distance from peak Mount Diablo 609 Comment
  SD211529  Sanicula saxatilis Barbara Ertter, Brad Olson et al 1991-4-7 9728 Contra Costa Eagle Peak on Mount Diablo; scree slopes on East and Southwest side, especially in drainages 228 Comment
  UC480613  Sanicula saxatilis Carl Meyer 1928-2-22 281 Contra Costa Mount Diablo Comment
  JEPS955  Sanicula tuberosa W. L. Jepson 1922-5-23 9663 Contra Costa Mount Diablo Comment
  UC73326  Sanicula tuberosa Chesnut and Drew 1889-4-17 Contra Costa Clayton Comment
  JEPS75491  Satureja douglasii P. F. Yorks 1975-7-5 469 Contra Costa on Hampton Road ca 1.8 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve Comment
  UC21365  Scandix pecten-veneris Jos. Burtt Davy 1901-4-21 6928 Contra Costa Wildcat Canyon Comment
  CAS-BOT-BC283604  Schedonorus pratensis Barrett Anderson 1987-4-29 3485 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  UCD150898  Schoenoplectus James A. Neilson Jr. 1972-10-22 3503 Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 0 Comment
  UC1618278  Schoenoplectus acutus var. occidentalis Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10708 Contra Costa opposite Pittsburg Marina (near w end of island, n of Pittsburg, near confluence of Sacramento and San Joaquin rivers); Browns Island Comment
  UC2070487  Schoenoplectus acutus var. occidentalis Barbara Ertter 2002-11-11 18077 Contra Costa Round Valley Regional Preserve east of Mount Diablo. Comment
  CAS-BOT-BC111482  Schoenoplectus americanus Walter Knight; I. Knight; E. McClintock; John Thomas Howell; B. Doyle; P. Rae 1978-9-5 3214 Contra Costa Browns Island, Botany Cove Comment
  CAS-BOT-BC111483  Schoenoplectus americanus K. (Mrs.) Brandegee 1882-6-8 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC111485  Schoenoplectus americanus Walter Knight 1977-6-10 s.n. Contra Costa Black Diamond Regional Preserve. Sand Creek, near coal mining site of Stewartville 158 Comment
  JEPS46490  Scirpus W. L. Jepson 1919-1-5 8201 Contra Costa Antioch San Joaquin River (on beach) Comment
  UC676723  Scirpus acutus var. acutus Ira L. Wiggins 1930-4-18 4589 Contra Costa Jersey Island Comment
  CDA15267  Scirpus americanus G. F. Hrusa, D. Crowe 1998-5-8 14398 Contra Costa Sacramento Delta; E end of Dow Chemical property in Pittsburg. Comment
  UC1607653  Scirpus americanus Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10709 Contra Costa near w end of Browns Island n of Pittsburg (near confluence of Sacramento and San Joaquin Rivers, opposite Pittsburg Marina); Browns Island Comment
  CDA39143  Scirpus microcarpus D. G. Kelch 2004-7-9 4 .308 Contra Costa Carquinez Strait; Martinez; Alhambra Creek, near Muir gravesite. Arroyo del Hambre. Comment
  JEPS116695  Scribneria bolanderi David Gowen 2006-5-19 580 Contra Costa Mount Diablo; Knobcone Point Rd. east of powerline, near unnamed dirt road west of Cave Point. Comment
  UC691603  Scrophularia californica Mary L. Bowerman 1933-4-15 1855 Contra Costa canyon s of Arroyo del Cerro Mt Diablo Comment
  UC25824  Scutellaria tuberosa W. H. Brewer 1862-5-1 1037 Contra Costa s of Camp 69 Comment
  CAS-BOT-BC417826  Sedella pentandra John Thomas Howell 1941-4-6 16182 Contra Costa Near Deer Flat, Mt. Diablo Comment
  JEPS99566  Sedum radiatum Mary Bowerman 1975-6-1 Contra Costa Mount Diablo, (probably along Falls Trail). Comment
  UC2028307  Sedum radiatum Barbara Ertter, Susan D'Alcamo 1998-6-12 16196 Contra Costa East end Bald Ridge Trail W of Prospectors Gap on north side of Mount Diablo summit. Comment
  UC11259  Sedum spathulifolium W. H. Brewer 1861-9-25 842 Contra Costa summit of Monte Diablo Comment
  CAS-BOT-BC327444  Senecio flaccidus var. douglasii Walter Knight 1965-3-1 s.n. Contra Costa Overlooking Carquinez Straits Comment
  UC35993  Senecio hydrophilus Jos. Burtt Davy 1900-6-7 6669 Contra Costa near Martinez Comment
  CAS-BOT-BC363702  Senecio hydrophilus Walter Knight 1977-7-15 s.n. Contra Costa Little Corral site. Antioch Sand Dunes 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
  CHSC23334  Senecio vulgaris Willis Ball 1975-2-23 435 Contra Costa Contra Loma Regional Park. In area #1. Ca. 25 yds e of restroom facilities at s end of lake. 30 Comment
  JEPS111692  Senecio vulgaris D. G. Kelch 2004-3-13 04 .37 Contra Costa Pinole Valley Pinole Valley Park between Pinole Valley Road and El Sobrante Ridge 36 Comment
  JEPS37191  Senecio vulgaris W. L. Jepson 1921-5-22 9200 Contra Costa Mt. Diablo Comment
  UC651289  Senecio vulgaris Ira L. Wiggins 1930-4-18 4597 Contra Costa n end Jersey Island Comment
  CAS-BOT-BC364553  Senecio vulgaris Ira L. Wiggins 1930-4-18 4597 Contra Costa Levee, n. end of Jersey Island Comment
  JEPS48264  Sequoia sempervirens K. D. Jones 1908-4-5 Contra Costa Redwood Peak Comment
  HSC2615  Sequoia sempervirens D. A. Shally 1965-4-18 35 Contra Costa Canyon at Canyon Store Comment
  SEINET3561292 Image available Sequoia sempervirens Lewis S. Rose 1934-1-29 34009 Contra Costa Redwood Canyon. Comment
  CDA33679  Sesbania punicea Leopando & Yost 2010-8-18 PDR# 1649543 Contra Costa Martinez: Central Ave. 0 Comment
  CDA37437  Sesbania punicea D. G. Kelch, Mike Perlmutter 2011-9-23 11 .764 Contra Costa Antioch. Dow Wetlands. 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
  RSA720804  Sherardia arvensis Barbara Ertter, Mary Bowerman, Lisa Schultheis 1995-3-31 13941 Contra Costa Mount Diablo State Park. Lower end of Mitchell Canyon S of Clayton. 183 Comment
  UC1555371  Sidalcea malviflora subsp. laciniata Jerry Powell 1988-4-1 1530 Contra Costa Point Molate Richmond (in w Richmond) 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
  UC72569  Silene antirrhina Chesnut and Drew 1889-4-16 Contra Costa Clayton Comment
  UC692409  Silene californica Mary L. Bowerman 1931-5-19 874 Contra Costa e-facing flank of main e branch Donner Canyon (Mount Diablo); , Donner Canyon Comment
  CDA39044  Silene gallica D. G. Kelch 2011-6-5 11 .572 Contra Costa Carquinez Strait; South of Crockett, south of Cummings Skyway. Comment
  UC2029065  Silene laciniata subsp. californica Barbara Ertter 2000-7-29 17440 Contra Costa Donner Basin on north side of Mount Diablo, lower Middle Trail between first creek crossing and Falls Trail junction. Comment
  UC8497  Silene verecunda subsp. platyota Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC74934  Sinapis arvensis Ira L. Wiggins 1930-4-18 4611 Contra Costa Jersey Island. 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
  UC2070554  Sinapis arvensis Barbara Ertter 2002-6-22 17963 Contra Costa Clayton Oak Road near Rialto Road, east of Donner Canyon at north base of Mount Diablo. Comment
  UCD115440  Sinapis arvensis Joel H. Smith 1940-3-18 13 Contra Costa valley region between Walnut Creek and Martinez. 167 Comment
  CDA3865  Sisymbrium altissimum R. DeBoer, J. Moon 1961-4-18 Contra Costa Railroad yard, 101 Garrard Boulevard, Richmond. 0 Comment
  JEPS100077  Sisymbrium officinale A. Langston 2003-6-19 AL 49 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CHSC24717  Sisyrinchium bellum G. Strang 1976-4-13 12 Contra Costa Hills directly S.W. of archery range in Briones Park. 182 Comment
  JEPS112431  Sisyrinchium bellum A. G. Murdock 2004-3-19 220 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
  UCD138787  Sisyrinchium bellum Jennifer Davies 1982-4-11 4 Contra Costa 1 mile NW South Checking Station on South Gate Road, Mt. Diablo. 487 Comment
  CDA39383  Smilacina racemosa A. G. Murdock 2004-4-3 245 Contra Costa Vaca Canyon. Comment
  UC691995  Smilacina racemosa Mary L. Bowerman 1933-5-22 2168 Contra Costa e Knobcone Point (on n face (2 small ridges w of n ridge bearing Pinus attenuata)); Mount Diablo, Inner Black Hills Comment
  UC570693  Solanum americanum H. L. Mason 1929-9-21 5445 Contra Costa 1 mi e of junction with road to Antioch (Bordon Highway); Bordon Highway Comment
  CDA34360  Solanum rostratum E. Finley 1986-8-26 s.n. Contra Costa Lake Cascade, Orinda. 0 Comment
  CAS-BOT-BC157453  Solanum umbelliferum A. Eastwood 1915-5-30 4541 Contra Costa Mt. Diablo Comment
  NY853874  Solanum umbelliferum M. L. Bowerman 1975-5-11 s.n. Contra Costa Mount Diablo. Back Creek. Comment
  UC523543  Solanum umbelliferum David D. Keck 1933-11-2 2619 Contra Costa 1 mi se of Oakley Comment
  UC536676  Solanum umbelliferum Herbert L. Mason 1935-8-23 Contra Costa Cashion Canyon, Saint Mary's College Cashion Canyon; , Saint Mary's College Comment
  SEINET6186041  Solanum umbelliferum P. Del Monte 1976-3-28 s.n. Contra Costa Morgan Territory Rd., 1 miles north of Curry Creek Park 122 Comment
  UC1051128  Solanum xanti N. Floy Bracelin 1943-8-22 2584 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1999894  Solidago velutina subsp. californica J. C. Semple, B. A. Suripto, T. Ahmed 1990-8-16 9338 Contra Costa E of Berkeley, Berkeley Hills, Grizzly Peak Rd., disturbed area in formley [formerly] wooded slope N of road. Comment
  JEPS100170  Soliva sessilis G. Smick 2003-4-8 GAS 123 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1795889  Spartina densiflora Barbara Ertter, Rich Rabeler 1994-6-18 12835 Contra Costa Pt. Pinole Regional Shoreline at north end of Richmond; beach on North side Whittell Marsh. Comment
  CAS-BOT-BC236610  Spartina foliosa Richard W. Pohl 1952-9-9 7198 Contra Costa Along San Francisco Bay, El Cerrito Comment
  UC1780870  Spartium junceum R. Schmid 2003-5-11 2003 -13 Contra Costa Wildcat Creek Trail, N side and NW end of (E of Belgium Trail) Wildcat Canyon Regional Park (NW of broad part of old paved road) 76 Comment
  UC2028514  Spartium junceum Barbara Ertter 1996-11-24 15419 Contra Costa West side of Mount Diablo, upstream from Pine Pond along Stage Road in Pine Canyon, floodplain at junction with Dusty Road Comment
  UCD108505  Spartium junceum Rudolf Schmid 2003-5-11 2003 -13 Contra Costa Wildcat Canyon Regional Park, north side and northwest end (east of Belgium Trail) of Wildcat Creek Trail, northwest of broad part of old paved road. 76 Comment
  UC1948951  Spergula arvensis William J. Ferlatte, L. Maynard Moe 1970-4-27 1256 Contra Costa San Francisco Bay: Red Rock Island Comment
  JEPS111532  Spergularia bocconi D. G. Kelch 2005-5-5 05 .216 Contra Costa Point Pinole - Giant Marsh 3 Comment
  UC1795742  Spergularia bocconi Barbara Ertter, Mary Bowerman et al. 1995-5-7 14027 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, along road thru annual grassland with scattered blue oak south of Marsh Creek Road summit. 304 Comment
  UC2070557  Spergularia macrotheca var. leucantha Barbara Ertter with Brad Olson et al. 2000-6-2 17302 Contra Costa Brushy Peak Regional Preserve NE of Livermore. Comment
  SFV1240  Spergularia marina J. M. Tucker 1963-4-12 3687 Contra Costa West side of Holey Road, 3 miles southeast of Byron. Comment
  CHSC116606  Spergularia rubra Lowell Ahart; Josephine Guardino 2016-4-19 20775 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides of the dirt roads, 1.8 mile (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  UC2027744  Spergularia rubra Barbara Ertter 1997-1-5 15436 Contra Costa Lime Ridge Open Space on northwest side of Mount Diablo, section on north side of Ygnacio Valley Road. Comment
  UC2029011  Spergularia rubra Barbara Ertter with Dan Norris 1999-11-14 16852 Contra Costa Black Diamond Mines Regional Preserve, south of parking area for Somersville townsite. Comment
  UC2036957  Spergularia rubra Mary L. Bowerman 1946-2-10 4081 Contra Costa Hard ground by C.C.C. camp. Comment
  CHSC75343  Sporobolus airoides Roger Thom 1987-5-26 20 Contra Costa 2800 block of Buena Vista Ave. Walnut Creek. In waste lot. 30 Comment
  JEPS112464  Stachys ajugoides var. rigida D. G. Kelch 2003-4-3 03 .364 Contra Costa Cummings Skyway 115 Comment
  UC884280  Stachys ajugoides var. rigida Alice Eastwood 1915-5-30 Contra Costa Mt. Diablo Comment
  RSA762305  Stachys ajugoides var. rigida William J. Ferlatte, L. M. Moe 1970-4-27 1224 Contra Costa San Francisco Bay, Red Rock Island. Comment
  SEINET5576095  Stachys bullata H. S. Gentry 1931-1 50 Contra Costa Collected near Buckle Point Mt. Diablo. Comment
  JEPS36203  Stebbinsoseris heterocarpa W. L. Jepson 1921-5-22 9215 Contra Costa Half way up Mt. Diablo. Comment
  SJSU10595  Stebbinsoseris heterocarpa W. A. Chappell 1963-4-8 Contra Costa Mt Diablo foothills 3 mi NE of Walnut Cr Comment
  UC651293  Stellaria media Ira L. Wiggins 1930-4-18 4598 Contra Costa n end Jersey Island Comment
  CHSC57360  Streptanthus Willis Ball 1975-3-26 519 Contra Costa Contra Loma Regional Park, in area #3. On hill ca. 100 yds. nw of the dam. 45 Comment
  UC1492706  Streptanthus albidus subsp. peramoenus Freed W. Hoffman 1949-4-16 2762 Contra Costa 2 mi inside North Gate of Mt. Diablo State Park; Mt. Diablo 228 Comment
  UC630661  Streptanthus albidus subsp. peramoenus John L. Morrison and Lincoln Constance 1938-5-5 3030 Contra Costa steep sw slope 2 mi outside N. entrance to Mt. Diablo State Park Comment
  SEINET3149300  Streptanthus glandulosus M. S. Baker 1904-6-24 sn Contra Costa Mt. Diablo, halfway to Summit Comment
  CAS-BOT-BC87097  Streptanthus glandulosus subsp. glandulosus John Thomas Howell 1942-5-24 16965 Contra Costa Near Deer Flat, Mount Diablo. Comment
  CAS-BOT-BC87101  Streptanthus glandulosus subsp. glandulosus Mary L. Bowerman 1935-6-8 3123 Contra Costa Mount Diablo. West road 2 miles from entrance. Comment
  CAS-BOT-BC87343  Streptanthus hispidus L. R. Abrams 1921-5-25 8059 Contra Costa Summit Mount Diablo. Comment
  JEPS81240  Streptanthus hispidus Paul Hutchison 1982-4-25 8007 a Contra Costa s-facing slope below huge rock outcrop at foot of summit trail Mt. Diablo Comment
  UC956587  Streptanthus hispidus Freed W. Hoffman 1949-4-17 2766 Contra Costa e side Eagle Peak (near summit); Mt. Diablo 725 Comment
  UC1950410  Stuckenia filiformis subsp. alpina Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10715 Contra Costa Brown Island N of Pittsburg near confluence of Sacramento & San Joaquin rivers opposite Pittsburg Marina; at W end of island Comment
  SBBG122788  Stuckenia pectinata B. Ertter, B. Olson 1993-8-8 12202 Contra Costa Bishop Ranch Regional Open Space SW of San Ramon Comment
  CAS-BOT-BC422912  Stylomecon heterophylla Alice Eastwood 1921-4-18 10292 Contra Costa Antioch Comment
  RSA135424  Stylomecon heterophylla Volney Rattan 1883-04 s.n. Contra Costa Martinez. Comment
  SEINET3160771  Stylomecon heterophylla L. S. Rose 1940-4-30 40247 Contra Costa Marsh Creek, 6 mi. e. of Clayton 46 Comment
  UC1614103  Stylomecon heterophylla Charles M. Belshaw 1935-6-24 785 Contra Costa 1/2 mi e of Grizzly Peak (Bald Peak); Bald Peak Comment
  RSA446229  Stylomecon heterophylla John Doyen, Glenn Gorelick 1966-4-22 s.n. Contra Costa Russelman Park. Mt. Diablo State Park. Comment
  RSA438613  Suaeda moquinii E. E. Stanford 1930-08 1867 Contra Costa near Old River Comment
  CDA9506  Suaeda nigra D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .233 Contra Costa Byron Airport. Comment
  CAS-BOT-BC269561  Symphoricarpos albus var. laevigatus Paul F. Covel 1936-4-19 207 Contra Costa Las Trampas Cyn (Cashion Cn) Comment
  CAS-BOT-BC97697  Symphyotrichum chilense R. E. Frenkel 1964-6-20 591 Contra Costa on Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  UC1561251  Symphyotrichum subspicatum Barbara Ertter 1989-9-30 8867 Contra Costa e of, (East Bay Skyline Nat'l Recreatn Trail (= Nimitz Way) n of Inspiration P. El Cerrito; Tilden Regional Park Comment
  UC1606281  Symphyotrichum subulatum Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10868 Contra Costa Dow Wetlands Preserve, just W of Antioch marina; along levee at water's edge, accessed from marina. Comment
  UC912542  Symphyotrichum subulatum Herbert L. Mason 1929-9-21 5439 Contra Costa 1 mi from junction of Borden Highway and road to Antioch Comment
  UC691418  Tauschia hartwegii Mary L. Bowerman 1930-6-14 332 Contra Costa Mount Diablo , Meridian Peak summit on w slope (summit) Comment
  JEPS49692  Tellima grandiflora W. L. Jepson 1891-6-9 13461 Contra Costa Fish Ranch Comment
  UC2062659  Tetrapteron graciliflorum Barbara Ertter with Chris Thayer 2002-4-13 17829 Contra Costa North side of Mount Diablo. Comment
  UC692141  Thalictrum fendleri var. polycarpum Mary L. Bowerman 1931-4-5 673 Contra Costa by road to Gregory Ranch Mount Diablo Comment
  CAS-BOT-BC88256  Thysanocarpus curvipes Katharine Brandegee 1907-5-1 s.n. Contra Costa Antioch. Comment
  CAS-BOT-BC88259  Thysanocarpus curvipes Robert F. Hoover 1935-3-10 310 Contra Costa Antioch sand dunes. 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
  JEPS54202  Thysanocarpus curvipes W. L. Jepson 1891-5-24 Contra Costa Mt. Diablo Comment
  UC11035  Thysanocarpus curvipes T. S. Brandegee 1890-1 Contra Costa Antioch Comment
  UC14311  Thysanocarpus curvipes Chestnut and Drew 1889-4-17 Contra Costa Summerville Comment
  UC691142  Thysanocarpus curvipes Mary L. Bowerman 1933-5-17 2102 Contra Costa branch of Curry Canyon due s of Olafson's barn Mount Diablo (w-facing bank just n of first fork of canyon); , branch of Curry Canyon 289 Comment
  UC691144  Thysanocarpus curvipes Mary L. Bowerman 1933-5-8 2031 Contra Costa flat n of Rock City camp grounds Mount Diablo; , n of Rock City camp grounds Comment
  UC691251  Thysanocarpus curvipes Mary L. Bowerman 1931-4-19 740 Contra Costa Mitchell Canyon below Deer Flat Mount Diablo (Mount Diablo); , Mitchell Canyon below Deer Flat Comment
  POM203036  Thysanocarpus curvipes var. curvipes J. T. Howell 1934-4-8 11822 Contra Costa Marsh Creek Road, SW of Brentwood. Comment
  SEINET10904232  Thysanocarpus curvipes var. elegans John T. Middleton 1936-4-18 Middleton 141 Contra Costa Briones valley. Comment
  UC117285  Thysanocarpus laciniatus C. F. Baker 1903-4-28 2809 Contra Costa Mt. Diablo; Mt. Diablo, Mitchell's Canyon Comment
  UC691135  Thysanocarpus laciniatus Mary L. Bowerman 1931-4-18 713 Contra Costa Sycamore Canyon Mount Diablo (Mount Diablo); , Sycamore Canyon 335 Comment
  UC691139  Thysanocarpus laciniatus Mary L. Bowerman 1932-3-27 1138 Contra Costa Mount Diablo , below Mitchell Rock (below Mitchell Rock) Comment
  CAS-BOT-BC67283  Thysanocarpus radians T. S. Brandegee 1883-5-1 s.n. Contra Costa Antioch. Comment
  JEPS108219  Thysanocarpus radians David Gowen 2005-4-30 272 Contra Costa Morgan Territory Regional Preserve. Just east and outside the park along Manzanita Trail. Growing on very rocky east facing slope. Comment
  POM300996  Tonella tenella Mary L. Bowerman 1935-5-18 3023 Contra Costa Mount Diablo, Northwest facing slope across the road from, and a little east of, the parking area. 1067 Comment
  JEPS99480  Torilis arvensis Mary Bowerman 1975-6-7 Contra Costa Mount Diablo. Big Spring. Comment
  UC2027969  Torilis arvensis Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15661 Contra Costa North base of Mount Diablo, lower end of Mitchell Canyon. Comment
  UC1123217  Torilis nodosa C. M. Belshaw 1936-5-7 2048 Contra Costa 2 miles S of San Ramon 274 Comment
  RSA720806  Torilis nodosa Barbara Ertter, Mary L. Bowerman 1995-6-11 14254 Contra Costa Shell Ridge recreation area southeast of Walnut Creek, bank of Indian Creek above Indian Valley pond 76 Comment
  CAS-BOT-BC172936  Toxicodendron diversilobum Alice Eastwood 1915-5-30 4551 Contra Costa Mt. Diablo Comment
  JEPS63916  Toxicodendron diversilobum W. L. Jepson 1931-4-5 15716 Contra Costa Nortonville n.e. Contra Costa Co., Nortonville Comment
  JEPS63917  Toxicodendron diversilobum W. L. Jepson 1894-9-7 13913 Contra Costa Bald Peak near Berkeley; Bald Peak Comment
  JEPS63921  Toxicodendron diversilobum W. L. Jepson 1922-5-15 9643 Contra Costa N. Berkeley Hills Comment
  UC1084405  Toxicodendron diversilobum G. Thomas Robbins 1937-4-17 118 Contra Costa near Point Richmond Point Richmond Comment
  UC17924  Toxicodendron diversilobum W. H. Brewer 1862-5-10 1068 Contra Costa near Clayton Clayton Comment
  CAS-BOT-BC172937  Toxicodendron diversilobum Mary L. Bowerman 1942-5-24 3845 Contra Costa West fork of Sycamore Creek (Madrone Canyon), below lower Rock City Camp Comment
  CAS-BOT-BC172938  Toxicodendron diversilobum B. Lacoste 1920-10-1 s.n. Contra Costa On hill slope by Lake Aliso Comment
  CHSC75068  Tragopogon porrifolius Roger Thom 1987-5-18 11 Contra Costa 0.15 mi. from west intersection with Stanley Blvd. on Camino Diablo. Lafayette. Shoulder of road. 30 Comment
  JEPS107101  Tragopogon porrifolius Barbara Ertter 1991-5-12 9812 Contra Costa Point Isabel Regional Shoreline in SW corner of El Cerrito; along old railroad right-of-way between San Francisco Bay and Salicornia marsh. Comment
  UC1776772  Tribulus terrestris T. C. Fuller 1961-9-13 6999 Contra Costa Almond orchard, S of hwy 4, 0.1 mi W of Antioch Bridge Rd., 2 mi W of Oakley. Comment
Read comments
Sep 1 2011
  CDA4740  Tribulus terrestris T. C. Fuller 1961-9-13 6999 Contra Costa South of Highway 4, 0.1 miles west of Antioch Bridge Road, 2 miles west of Oakley. 0 Comment
  UC416593  Trichostema lanceolatum V. King Chestnut 1887-9-18 Contra Costa Mount Diablo Comment
  CDA938  Trientalis latifolia D. G. Kelch 2006-5-4 6 .126 Contra Costa Carquinez Strait; Vaca Canyon, on North facing road cut/bank along Alhambra Valley Road. Comment
  UCR66560  Trientalis latifolia F. W. Peirson 1926-4-10 6635 Contra Costa Boulevard near San Pablo Reservoir Comment
  CDA23601  Trifolium albopurpureum D. G. Kelch 2008-4-12 8 .035 Contra Costa Mt Diablo. Mitchell Canyon. Along road looping north of main Mitchell Canyon Rd. Comment
  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
  UC137789  Trifolium albopurpureum var. dichotomum C. F. Baker 1903-4-27 2797 Contra Costa Byron Comment
  UC16612  Trifolium albopurpureum var. dichotomum Jos. Burtt Davy 1901-4-21 7048 Contra Costa Wildcat Canyon Comment
  UC630749  Trifolium albopurpureum var. dichotomum A. A. Heller 1908-4-17 8903 Contra Costa 3 mi s Antioch (hills) Comment
  UC165554  Trifolium albopurpureum var. olivaceum J. Burtt Davy 1895-1 955 Contra Costa Antioch Comment
  UC2070467  Trifolium albopurpureum var. olivaceum Barbara Ertter 2000-5-14 17002 Contra Costa Lower Donner Canyon on north side of Mount Diablo, junction of Donner Canyon, Cardinet Oaks and Meridian Ridge Roads. Comment
  POM194647  Trifolium bifidum Y. Mexia 1929-4-21 2372 Contra Costa Moraga Valley. Comment
  UC2028082  Trifolium bifidum Barbara Ertter, Tony Morosco 1998-4-12 15987 Contra Costa Base of Mount Olympia on north side of Mount Diablo, NE of Olympia Trail. Comment
  CDA27902  Trifolium bifidum var. decipiens A. G. Murdock, D. G. Kelch 2004-3-19 234 Contra Costa Carquinez Strait Region; McEwen Road. Comment
  CDA27904  Trifolium bifidum var. decipiens D. G. Kelch, A. G. Murdock 2005-5-6 05 -226 Contra Costa Carquinez Strait Region; Franklin Canyon. East of Christie Road. South of Route 4. Comment
  UC2027805  Trifolium bifidum var. decipiens Barbara Ertter with Holly Forbes 1997-4-20 15551 Contra Costa North base of Mount Diablo, roadside on trail to Back Creek from Mitchell Canyon trailhead. Comment
  UC2028209  Trifolium bifidum var. decipiens Barbara Ertter 1998-5-3 16072 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, near Wall Point. Comment
  RSA0033775  Trifolium campestre Barbara Ertter, Richard K. Brummitt 1998-5-6 16095 Contra Costa Donner Canyon Trail near Regency Drive trailhead, north base of Mount Diablo. 182 Comment
  CDA28873  Trifolium ciliolatum D. G. Kelch, Jessica Kolman 2009-5-29 9 .312 Contra Costa Carquinez Strait; Pinole Valley Park, near ridgetop. Comment
  CDA29796  Trifolium ciliolatum D. G. Kelch, Troy MacGregor 2009-5-1 9 .265 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  UC692252  Trifolium ciliolatum Mary L. Bowerman 1932-5-6 1422 Contra Costa Mitchell Canyon Mount Diablo Comment
  POM194646  Trifolium ciliolatum Ynez Mexia 2373 Contra Costa Moraga Valley Comment
  UC2028184  Trifolium ciliolatum Barbara Ertter 1998-5-3 16066 Contra Costa SE end of Wall Point Road on southwest flank of Mount Diablo. Comment
  JEPS65716  Trifolium depauperatum var. amplectens Edw. L. Greene 1889-3-23 Contra Costa Byron Comment
  UC165574  Trifolium depauperatum var. amplectens J. Burtt Davy 943 Contra Costa Antioch Comment
  UC1819261  Trifolium depauperatum var. amplectens Barbara Ertter, Mary Bowerman et al. 1995-5-7 14045 Contra Costa Three Springs Trail on northeast side of Mt. Diablo southeast of Clayton, grassy flat, roadside vegetation, clay substrate. Comment
  UC2028190  Trifolium depauperatum var. amplectens Barbara Ertter 1998-5-3 16053 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. Comment
  UC630935  Trifolium depauperatum var. depauperatum P. B. Kennedy 1928-4-19 10049 a Contra Costa Byron Hot Springs, near [golf links] Byron Hot Springs Comment
  UCD108372  Trifolium depauperatum var. depauperatum P. B. Kennedy Date Unknown s.n. Contra Costa Vicinity of Bryon Springs, Greene. Comment
  UCSC011138  Trifolium depauperatum var. laciniatum R. Morgan 2015-4-11 6739 Contra Costa Byron Comment
  UC555354  Trifolium depauperatum var. truncatum H. L. Mason 1929-4-25 5208 Contra Costa Marsh Creek Rd Comment
  RSA517734  Trifolium depauperatum var. truncatum Donald G. Nelson 1937-3-30 476 Contra Costa Railroad tracks paralleling the highway south of Byron on road to Tracy Comment
  SD37270  Trifolium dichotomum Mc Callum 1933-4-25 2140 Contra Costa Low hills near Tassajara Comment
  RSA0027401  Trifolium fragiferum Barbara Ertter 1999-7-17 16764 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, Wildcat Creek Trail between Rifle Range Road and boundary with Tilden Regional Park. Comment
  UC555454  Trifolium fucatum H. L. Mason 1929-3-31 5143 Contra Costa Briones Valley Comment
  UC70198  Trifolium fucatum J. Burtt Davy May 1898 Contra Costa Danville region of Mount Daiblo Comment
  UC400157  Trifolium gracilentum Ynes Mexia 1929-4-21 2375 Contra Costa Moraga Valley Comment
  UC555592  Trifolium gracilentum H. L. Mason 1928-4-13 4301 Contra Costa Richmond waterfront Comment
  RSA695881  Trifolium gracilentum Barbara Ertter, Chris Thayer 1993-5-7 11712 Contra Costa Ca 1/2 mile N of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land E of Tilden Park. Grazing land on lower slopes S of Wildcat Canyon Road. Comment
  UC2070478  Trifolium gracilentum Barbara Ertter 2000-5-14 16999 Contra Costa Lower Donner Canyon on north side of Mount Diablo. Comment
  CDA27955  Trifolium gracilentum var. gracilentum D. G. Kelch, A. G. Murdock 2005-4-15 5 .151 Contra Costa Carquinez Strait Region; Rodeo Creek. EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  JEPS65910  Trifolium gracilentum var. gracilentum W. L. Jepson 1917-4-19 6865 Contra Costa Oakland Hills Comment
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Dec 17 2008
  UC2028170  Trifolium gracilentum var. gracilentum Barbara Ertter 1998-5-3 16073 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, near Wall Point. Comment
  JEPS111084  Trifolium hirtum Lee Echols 2003-3-3 s.n. Contra Costa S of Lark Drive and EPA building within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  UC555606  Trifolium macraei H. L. Mason 1928-4-13 4304 Contra Costa Richmond waterfront 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
  UC764715  Trifolium microdon R. F. Hoover 1939-4-25 4066 Contra Costa Richmond hills Comment
  UC692669  Trifolium microdon Mary L. Bowerman 1935-4-19 2872 Contra Costa ca 7 mi w Northgate (by rd, ridge w of the power poles, above the rd junction); Mount Diablo 670 Comment
  UC692639  Trifolium obtusiflorum Mary L. Bowerman 1935-5-25 3077 Contra Costa Rhine Canyon Mount Diablo (side of gully containing streamlet) 914 Comment
  UC630888  Trifolium oliganthum Mrs. K. Brandegee may 1907 Contra Costa Antioch Comment
  UC2028158  Trifolium oliganthum Barbara Ertter 1998-4-4 15953 Contra Costa Shell Ridge Open Space northwest of Mount Diablo. Comment
  UCD32493  Trifolium olivaceum Beecher Crampton 1950-4-22 534 Contra Costa Contra Costa County, along State Highway 4, in Concord Valley. 30 Comment
  UCD35145  Trifolium olivaceum Beecher Crampton 1950-4-22 534 Contra Costa East side of Concord Valley. Comment
  UC2029059  Trifolium subterraneum Barbara Ertter with Kevin Hintsa et al. 2003-4-20 18159 Contra Costa Secret Trail at head of Pine Canyon, west side of Mount Diablo Comment
  JEPS127098  Trifolium tomentosum Lowell Ahart, Josephine Guardino 2016-4-19 20760 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  PASA252  Trifolium tridentatum Annetta Carter 1929-3-31 Contra Costa Hills north of Mt. Diablo, near Clayton Comment
  SJSU5771  Trifolium variegatum C. O. Dudley 1966-4-16 Contra Costa Reliez Valley, Briones Hills N of Lafayette Comment
  UC16795  Trifolium variegatum var. melananthum W. L. Jepson 1891-5-24 Contra Costa Mt. Diablo Comment
  CDA29759  Trifolium willdenovii D. G. Kelch, Troy MacGregor 2009-5-1 9 .264 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  JEPS100108  Trifolium willdenovii G. Smick 2003-3-25 GAS 81 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC630906  Trifolium willdenovii P. B. Kennedy 1907-5-5 Contra Costa Lake Merritt Oakland Comment
  UC16819  Trifolium wormskioldii W. L. Jepson 1891-5-23 Contra Costa Mt. Diablo Comment
  UC16828  Trifolium wormskioldii Jos. Burtt Davy 1900-6-7 6663 Contra Costa near Martinez Comment
  JEPS112457  Triglochin maritima D. G. Kelch 2003-8-13 03 .109 Contra Costa Martinez Marsh 0 Comment
  CAS-BOT-BC451764  Triglochin maritima Walter Knight; Joanne Dean No date on label 3131 Contra Costa Browns Island. Comment
  CAS-BOT-BC451964  Triglochin striata Walter Knight; I. Knight; J. T. Howell; E. McClintock; S. Rae; B. Doyle 1978-9-5 3213 Contra Costa Botany Cove, Browns Island. Comment
  UCD139903  Trillium chloropetalum Morris Halperin 1929-4-21 s.n. Contra Costa St. Mary's College Campus. Comment
  UC367060  Trillium chloropetalum J. G. Lemmon April, 1878 Contra Costa Mt. Diablo and Oakland Hills Comment
  JEPS11780  Triodanis biflora Mary L. Bowerman 1933-5-18 2130 Contra Costa w Blackberry Spring (Mount Diablo); , w of Blackberry Spring Comment
  JEPS23787  Triphysaria eriantha subsp. eriantha Rimo Bacigalupi with Paul C. Hutchison and John Weiler 1959-3-19 6970 Contra Costa junction of Holey Road and Byron Road about 2.9 mi se Byron 4 Comment
  UC1046443  Triphysaria eriantha subsp. eriantha Alex D. Hawkes and R. Bacigalupi 1951-4-21 4772 Contra Costa meadow near Walnut Creek; meadow near Walnut Creek Comment
  UC1211917  Triphysaria eriantha subsp. eriantha John H. Weiler 1961-3-7 6127 Contra Costa at the junction of Byron Road and Holey Road Comment
  JEPS15155  Triphysaria pusilla C. M. Belshaw 1936-5-7 2046 Contra Costa 2 mi s San Ramon; Mt. Diablo Quad. Comment
  JEPS23260  Triphysaria pusilla G. Thomas Robbins 1959-4-26 4004 Contra Costa about 1/4 mi n San Pablo Oil Tank Farm (open slope about 1 mi ne of Giant) 15 Comment
  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
  JEPS112493  Triteleia hyacinthina D. G. Kelch 2005-4-24 05 .169 Contra Costa Franklin Canyon. Collier Hill. West Carbon 60 Comment
  JEPS58065  Triteleia laxa W. L. Jepson 1918-6-3 7569 Contra Costa Donner Canyon Mt. Diablo 304 Comment
  UC635732  Triteleia laxa H. L. Mason 1929-3-15 5062 Contra Costa about 5 mi from Brentwood (Marsh Creek Road) Comment
  CAS-BOT-BC526330  Triteleia laxa Volney Rattan 1879-1-1 s.n. Contra Costa Antioch Comment
  SEINET3127299  Triteleia laxa H. A. Walker 1906-1 148 Contra Costa Vicinity of Berkeley Comment
  UC2028145  Triteleia laxa Barbara Ertter 1998-4-4 15970 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, Fossil Hill. Comment
  CAS-BOT-BC200472  Triticum aestivum Alice Eastwood 1921-4-18 10314 Contra Costa Antioch Comment
  UC191739  Tropidocarpum capparideum Edward Lee Greene 1888-3-24 Contra Costa Byron Spring Comment
  UC673302  Tropidocarpum gracile H. L. Mason 1932-3-20 6842 Contra Costa Antioch sand hills Comment
  UC857585  Tropidocarpum gracile Lewis S. Rose 1940-4-30 40249 Contra Costa open fields five mi e Clayton; Marsh Creek 60 Comment
  CAS-BOT-BC67412  Tropidocarpum gracile Mary L. Bowerman 1931-3-29 614 Contra Costa Mount Diablo. Riggs Canyon, at foot of Cave Point ridge. Comment
  CAS-BOT-BC73895  Turritis glabra Mary L. Bowerman 1932-5-6 1431 Contra Costa Mitchell Canyon. At end of road. 251 Comment
  UC2070653  Typha Barbara Ertter 1998-11-15 16460 Contra Costa North side Mount Olympia on north side Mount Diablo. Comment
  JEPS111914  Typha angustifolia Dean G. Kelch and Andrew G. Murdock 2003-8-13 DGK 03 .105 Contra Costa Martinez Marsh. Comment
  SFV8563  Typha angustifolia R. C. Martin 1968-5-18 24 Contra Costa San Pablo Bay, 3 miles south of Pinole Point. In marsh. Comment
  SD45082  Ulex europaeus W. W. Jones 1927-10-27 Contra Costa Crockett Comment
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Jul 11 2010
  RSA721868B  Ulmus minor Barbara Ertter, Richard K. Rabeler 1994-6-18 12837 Contra Costa Pt. Pinole Regional Shoreline at north end of Richmond; northeast corner of park, near jct Marsh Trail and Cook's Point Trail. Comment
  UC2070596  Ulmus minor Barbara Ertter with Chris Thayer 2002-4-13 17826 Contra Costa North side of Mount Diablo, on north face of Mount Olympia. Comment
  CAS-BOT-BC91092  Umbellularia californica Annetta Carter 1937-3-20 1224 Contra Costa Lake Orinda Road, two miles northwest of Orinda. 121 Comment
  JEPS68942  Umbellularia californica Edward Lee 1935-2-10 1270 Contra Costa Wildcat Creek; Berkeley, Berkeley Hills Comment
  POM247255  Umbellularia californica Annetta Carter 1937-3-20 1224 Contra Costa Lake Orinda Road, two miles northeast of Orinda. 122 Comment
  JEPS36205  Uropappus lindleyi W. L. Jepson 1922-5-23 9652 Contra Costa Mt. Diablo Comment
  UC692059  Urtica dioica subsp. holosericea Mary L. Bowerman 1932-11-25 1665 Contra Costa Mount Diablo, Silver Spring Silver Spring; Mount Diablo, Silver Spring Comment
  UCR142707  Urtica dioica subsp. holosericea Joseph A. Ewan 1933-10-15 8018 Contra Costa San Francisco Bay Region, South West slope of Mount Diablo 1159 Comment
  JEPS77020  Vaccinium ovatum Robert M. Lloyd 1963-3-17 2145 Contra Costa 0.5 mi e intersection of Grizzly Peak Road and Skyline Drive (on Skyline (across from 7090 Skyline)) Comment
  UC1714515  Verbascum blattaria unknown July 1892 Contra Costa Redwood Peak Comment
  UCD125942  Verbena hastata Malcolm A. Nobs; S. Galen Smith 1949-7-8 942 Contra Costa Otto's Black Bass Resort, 4 miles N of Kingston. Comment
  UC139763  Verbena lasiostachys var. scabrida Katharine Brandegee 1907-7-4 Contra Costa Between Martinez and Port Costa Comment
  CDA9278  Verbena scabra D. G. Kelch 2002-7-15 2 .006 Contra Costa CA Delta; Old San Joaquin River channel, E of Brentwood. San Joaquin County border. 0 Comment
  UC2028187  Veronica peregrina subsp. xalapensis Barbara Ertter 1998-5-3 16056 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. Comment
  CDA23620  Vicia americana D. G. Kelch, D. A. Weinstein 2008-4-15 8 .041 Contra Costa Carquinez Strait; S Port Costa along Mckewen Rd. Comment
  UCSB12524  Vicia americana Grah, Nancy 1962-4-4 Contra Costa 1.4 miles north of Tarry Lane on Tappen Lane, Orinda 243 Comment
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Mar 15 2008
  JEPS75471  Vicia americana var. americana P. F. Yorks 1974-5-10 158 Contra Costa ca 1.5 km s Bear Creek Rd on Hampton Rd in Hampton Road Natural Reserve (n of Briones Reservoir) 170 Comment
  UC1586040  Vicia americana var. americana Barbara Ertter with John Little 1989-4-2 8104 Contra Costa n end Hillside Park, El Cerrito; El Cerrito Comment
  UC16958  Vicia americana var. americana unknown 1862-4-18 1016 Contra Costa Mt. Diablo Comment
  RSA722226  Vicia benghalensis Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14220 Contra Costa Mt. Diablo southeast of Walnut Creek, roadside at Curry Point. 541 Comment
  JEPS25122  Vicia sativa subsp. nigra G. Thomas Robbins 1959-4-18 3988 Contra Costa about 0.5 mi e Pt. San Pablo (overlooking San Pablo Bay, Richmond); Richmond 7 Comment
  UC1618355  Vicia sativa subsp. sativa Barbara Ertter 1993-4-2 11475 Contra Costa along railroad w of Crockett (at w end of Carquines Strait, San Pablo Bay); San Pablo Bay, Carquines Strait Comment
  UCR198227  Vicia villosa Dean Kelch, Barbara Ertter 2007-2-28 07 .078 Contra Costa Tormey Headlands, between Crockett and Rodeo 76 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
  UC1300882  Vicia villosa subsp. varia Helen K. Sharsmith 1962-4-18 4946 Contra Costa road above Carquinez Straits (Crockett-Martinez road); San Francisco Bay Region 60 Comment