37.88361 37.98361 -122.13166 -122.03166 Archived CCH Search Results
Search Results — 405 specimen records retrieved (405 records with coordinates)
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 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
  JEPS42648  Acer macrophyllum W. L. Jepson 1916-10-28 6853 a Contra Costa Las Trampas Creek Comment
  UC1199010  Acer negundo Joseph P. Tracy 1934-4-30 13187 Contra Costa Lafayette 152 Comment
  UC18099  Acer negundo J. Burtt Davy 1895-4-13 1012 Contra Costa Lafayette Comment
  POM284638  Acer negundo subsp. californicum Lyman D. Benson 1931-3-18 2656 Contra Costa Walnut Creek. 61 Comment
  GH363650  Acer negundo var. californicum W. L. Jepson 1908-8-16 3088 Unknown 2 miles west of Walnut Creek Comment
  JEPS42724  Acer negundo var. californicum W. L. Jepson 1908-8-16 3088 Contra Costa 2 mi w Walnut Creek; w of Walnut Creek Comment
  JEPS42725  Acer negundo var. californicum W. L. Jepson 1908-8-16 3084 Contra Costa Walnut Creek 22 Comment
  UC1046583  Achyrachaena mollis Alex D. Hawkes and R. Bacigalupi 1951-4-12 4775 Contra Costa meadow near Walnut Creek Comment
  CDA19102  Acroptilon repens R. Fonseca 2000-10-24 PDR 041911 Contra Costa San Francisco Bay Region; Along Hwy 680 Contra Costa Blvd off-ramp on Monument St., Pleasant Hill. 0 Comment
Read comments
May 27 2008
  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-BC65622  Adiantum jordanii D. E. Breedlove 1970-4-18 17432 Contra Costa at the north edge of Lafayette above Laurel Drive 243 Comment
  POM136961  Aesculus californica Ivar Tidestrom 1895-06 s.n. Contra Costa [No location information on label.] 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
  JEPS100031  Agrostis exarata S. O'Neil 2003-6-24 SEO 41 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD150904  Agrostis stolonifera James A. Neilson Jr. 1972-10-1 3513 Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 1 Comment
  JEPS95266  Allium paniculatum var. paniculatum Doris E. Baltzo 1999-7-20 Contra Costa 2092 Ahneita Drive, Pleasant Hill Comment
  UC3107  Allium serra Brewer 1022 Contra Costa Walnut Creek Comment
  JEPS58626  Alnus rhombifolia F. W. Bancroft 1894-10-1 Contra Costa Walnut Creek Comment
  GH341409  Alopecurus saccatus W. H. Brewer 1860-1-1 1042 Unknown Walnut Creek, Cal. Comment
Read comments
Dec 4 2015
  UC37122  Alopecurus saccatus W. H. Brewer 1862-5-1 1042 Contra Costa Walnut Creek Comment
  UC12066  Amelanchier utahensis W. H. Brewer 1862-5-1 1036 Contra Costa s of Camp 69 Comment
  UC725369  Amsinckia intermedia A. A. Heller 1938-4-9 15014 Contra Costa in an orchard near Walnut Creek Comment
  CAS-BOT-BC222464  Amsinckia lunaris Joseph P. Tracy 1934-4-30 13196 Contra Costa Near Lafayette 152 Comment
  SD6735  Amsinckia lunaris Edward L. Greene 1887-4-16 Contra Costa Comment
  UC525560  Amsinckia lunaris Joseph P. Tracy 1934-4-30 13196 Contra Costa near Lafayette; Coast Ranges 152 Comment
  CHSC75115  Anagallis arvensis Roger Thom 1987-5-26 21 Contra Costa 2800 block of Buena Vista Ave. Walnut Creek. 30 Comment
  CAS-BOT-BC400255  Anemopsis californica A. D. E. Elmer 1903-6-1 4870 Contra Costa Walnut Creek Comment
  CAS-BOT-BC400256  Anemopsis californica A. D. E. Elmer 1903-6-1 4870 Contra Costa Walnut Creek Comment
  JEPS12265  Anemopsis californica J. W. Blankinship 1913-6-16 Contra Costa Walwood, Ygnacio Valley Ygnacio Valley; Walwood, Ygnacio Valley Comment
  UC306614  Anemopsis californica A. D. E. Elmer June, 1903 4870 Contra Costa Walnut Creek Comment
  CHSC75049  Anthemis cotula Roger Thom 1987-5-27 24 Contra Costa 1900 block of Olympic Blvd. (at Newell Ave.), Walnut Creek. 15 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
  CDA39735  Apocynum cannabinum D. G. Kelch 2004-7-9 4 .306 Contra Costa Carquinez Strait; Alhambra Creek, Martinez, near Muir gravesite, Arroyo del Hambre. Comment
  JEPS111632  Apocynum cannabinum D. G. Kelch 2004-7-9 04 .306 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  UC571094  Arbutus menziesii H. L. Mason 1924-11-23 1160 Contra Costa Cashion Canyon Comment
  CAS-BOT-BC24850  Arctostaphylos glandulosa subsp. glandulosa H. E. McMinn 1923-3-6 875 Contra Costa Contra Costa Co. Comment
  UC2046014  Arctostaphylos viscida subsp. mariposa Stephen W. Edwards July, 2012 s.n. Contra Costa Pleasant Hill, along Taylor Blvd. Comment
  CAS-BOT-BC400403  Aristolochia californica D. E. Breedlove 1970-4-18 17444 Contra Costa At the north edge of Lafayette above Laurel Drive 243 Comment
  SJSU6159  Aristolochia californica C. O. Dudley 1966-5-1 106 Contra Costa Reliez Valley, Briones Hills N of Lafayette 152 Comment
  UC581133  Aristolochia californica H. L. Mason 1934-1-20 7995 Contra Costa <Casihon> Creek (Las Trampas Creek) Comment
  UC449651  Artemisia californica W. P. Taylor 1912-7-16 Contra Costa 2 mi sw Walnut Creek 121 Comment
  JEPS99962  Artemisia douglasiana A. Langston 2003-7-28 AL 74 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CHSC75046  Asclepias fascicularis Roger Thom 1987-5-18 10 Contra Costa Calif. State University Hayward's Contra Costa Campus. 3100 Oak Park Blvd. Pleasant Hill. 30 Comment
  JEPS100125  Asclepias fascicularis A. Langston 2003-7-24 AL 69 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC22985  Asclepias fascicularis Edw. L. Greene June 1892 Contra Costa Walnut Creek Comment
  UCD150890  Asclepias fascicularis James A. Neilson Jr. 1972-11-2 3600 Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 Comment
  UCD158698  Atriplex prostrata James A. Neilson Jr. 1972-11-2 3620 Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 1 Comment
  UCD158699  Atriplex prostrata James A. Neilson Jr. 1972-10-22 3509 Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 1 Comment
  JEPS100027  Avena fatua A. Langston 2003-6-6 AL 37 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD150885  Baccharis glutinosa James A. Neilson Jr. 1972-11-9 s.n. Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 Comment
  UCD158697  Beta vulgaris subsp. maritima James A. Neilson Jr. 1972-11-2 3613 Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 1 Comment
  UCD158710  Beta vulgaris subsp. maritima James A. Neilson Jr. 1972-11-2 3613 a Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 1 Comment
  CAS-BOT-BC100335  Blepharizonia plumosa R. F. Hoover 1937-9-2 2708 Contra Costa Walnut Creek Comment
  CAS-BOT-BC100338  Blepharizonia plumosa R. F. Hoover 1937-9-2 2708 Contra Costa Walnut Creek Comment
  JEPS18818  Blepharizonia plumosa R. F. Hoover 1937-9-2 2708 Contra Costa Walnut Creek Comment
  JEPS18824  Blepharizonia plumosa R. F. Hoover 1935-9-7 715 Contra Costa Walnut Creek Comment
  UC761853  Blepharizonia plumosa R. F. Hoover 1935-9-7 715 Contra Costa Walnut Creek Comment
  UC761865  Blepharizonia plumosa R. F. Hoover 1937-9-2 2708 Contra Costa Walnut Creek Comment
  CHSC75072  Brassica rapa Roger Thom 1987-5-26 18 Contra Costa 2800 block of Buena Vista Ave. Walnut Creek. In waste lot. 30 Comment
  CHSC75136  Bromus carinatus Roger Thom 1987-4-21 3 Contra Costa 3300 block Johnson Rd. Lafayette. 152 Comment
  UC697129  Bromus carinatus var. carinatus Mary L. Bowerman 1935-5-1 2947 Contra Costa West Road 6.7 mi from entrance, Mount Diablo West Road; Mount Diablo, West Road 640 Comment
  CAS-BOT-BC156061  Bromus diandrus D. E. Breedlove 1970-4-18 17439 Contra Costa At the north edge fo Lafayette above Laurel Drive. 243 Comment
  JEPS100025  Bromus diandrus S. O'Neil 2003-5-7 SEO 29 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  POM300671  Bromus diandrus Mary L. Bowerman 1935-4-26 2921 Contra Costa Mount Diablo. 1159 Comment
  UC60206  Bromus hordeaceus Jos. Burtt Davy 1899-4-19 7866 Contra Costa Las Trampas Creek Comment
  CAS-BOT-BC438367  Calandrinia ciliata V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley Comment
  JEPS99971  Calandrinia ciliata G. Smick 2003-4-8 GAS 134 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1136613  Calandrinia ciliata R. W. Lundh 1933-3-25 219 Contra Costa 1 mi w and 1/2 mi n Lafayette (Acalanes Grant); Concord Quadrangle Comment
  CHSC24837  Calandrinia ciliata var. menziesii M. A. Callahan 1976-4-14 14 Contra Costa Small pop. 5 m. from roadside w of house at 1976 Mohawk Dr. Pleasant Hill. 115 Comment
  UC1618318  Calochortus luteus Barbara Ertter with Travis Columbus 1990-6-10 9098 Contra Costa w of Pleasant Hill (trail heading down ridge on n side of Briones Peak, at jct with Spengler Trail, ne corner of Briones Regional Park, Briones Hills); Briones Hills, Briones Regional Park 274 Comment
  CAS-BOT-BC132493  Calochortus pulchellus D. E. Breedlove 1970-4-18 17425 Contra Costa At the north edge of Lafayette above Laurel Drive 243 Comment
  RSA215950  Calochortus pulchellus D. E. Breedlove 1970-4-18 17425 Contra Costa At the north edge of Lafayette above Laurel Drive 244 Comment
  SBBG52847  Calochortus umbellatus M. L. Long -Apr-1978 Contra Costa hills W of Rossmoor, Walnut Crk Comment
Read comments
Jan 28 2012
  UC1601662  Calochortus umbellatus W. H. Brewer 1862-5-1 1035 Contra Costa s of Camp 69; Walnut Creek Comment
  UC1601667  Calochortus umbellatus Brewer 1890-1 1035 Contra Costa Walnut Creek Comment
  UC1197881  Calystegia subacaulis subsp. subacaulis Joseph P. Tracy 1934-4-30 13192 Contra Costa Near Lafayette. 152 Comment
  GH378896  Cardamine californica W. H. Brewer 1860-1-1 1039 Unknown Walnut Creek Comment
  JEPS53386  Cardamine californica J. Burtt Davy 1895-4-13 1006 Contra Costa near Lafayette; near Lafayette Comment
  UC1126900  Cardamine californica R. W. Lundh 1933-3-20 215 Contra Costa 2 mi nw Walnut Creek, Canada del Hambro; Concord Quad. 182 Comment
  UC10326  Cardamine californica var. integrifolia W. H. Brewer 1862-5-1 1039 Contra Costa Walnut Creek Comment
  UC10419  Cardamine californica var. integrifolia W. H. Brewer 1862-5-1 1039 Contra Costa Walnut Creek Comment
  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
  CDA33124  Carex barbarae D. G. Kelch, A. G. Murdock 2004-7-9 04 .305-B Contra Costa Carquinez Strait; Alhambra Creek, Martinez, near Muir gravesite, Arroyo del Hambre. Comment
  JEPS111620  Carex obnupta D. G. Kelch 2004-7-9 04 .305 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  JEPS111897  Carex obnupta D. G. Kelch 2004-7-9 04 .305 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  UC590537  Carex subbracteata W. H. Brewer 1012 Contra Costa Walnut Creek Comment
Read comments
Oct 23 2009
  UC7991  Carex subbracteata W. H. Brewer 1012 Contra Costa Walnut Creek Comment
  UC8054  Carex subbracteata Brewer 1862-4-30 1012 Contra Costa Walnut Creek Comment
  UC26516  Castilleja affinis subsp. affinis W. H. Brewer 1862-5-1 1041 Contra Costa Walnut Creek 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
  CHSC24923  Castilleja subinclusa subsp. franciscana M. A> Callahan 1976-4-11 6 Contra Costa 120 m ne of house at 1976 Mohawk Dr. Pleasant Hill on w slope. 132 Comment
  JEPS99959  Centaurea calcitrapa A. Langston 2003-7-28 AL 76 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CHSC75053  Centaurea solstitialis Roger Thom 1987-5-28 25 Contra Costa 3300 block of Johnson Rd. 0.3 mi from intersection with Reliez Valley Rd. Lafayette. 137 Comment
  JEPS35031  Centromadia fitchii W. L. Jepson 1895-9-14 Contra Costa Walnut Creek Comment
  UC702537  Centromadia fitchii L. S. Rose 1941-10-13 41464 Contra Costa 1 mi e Walnut Creek 50 Comment
  JEPS35034  Centromadia pungens subsp. pungens W. L. Jepson 1895-9-14 Contra Costa Walnut Creek Comment
  UC306676  Centromadia pungens subsp. pungens A. D. E. Elmer 1903-5-1 4392 Contra Costa Walnut Creek 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
  CHSC75078  Chenopodium album Roger Thom 1987-5-27 23 Contra Costa 1900 block of Olympic Blvd. (at Newell Ave.) Walnut Creek. 15 Comment
  JEPS111800  Chenopodium murale D. G. Kelch 2004-7-9 04 .308 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  CHSC75054  Cichorium intybus Roger Thom 1987-5-26 16 Contra Costa 1900 block of Geary Rd. Walnut Creek 30 Comment
  JEPS99955  Cirsium vulgare A. Langston 2003-7-28 AL 75 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CHSC75102  Clarkia unguiculata Roger Thom 1987-5-18 12 Contra Costa 1.0 mi from intersection with Pleasant Hill Rd. on Reilez Valley Rd. Lafayette (1600 block). Road cut. 182 Comment
  UC1586096  Clarkia unguiculata Barbara Ertter with Travis Columbus 1990-6-10 9105 Contra Costa w Pleasant Hill (hillside above junction of Spengler and Blue Oak trail, ne corner of park); Briones Regional Park, Briones Hills 274 Comment
  UC1300963  Claytonia perfoliata subsp. perfoliata Helen K. Sharsmith 1962-3-25 4910 Contra Costa hills between Happy Valley and Alhambra Valley; San Francisco Bay Region 304 Comment
  CAS-BOT-BC91355  Clematis lasiantha V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley. Comment
  GH369667  Clematis lasiantha H. N. Bolander 1864-1-1 124 Unknown Walnut Creek 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
  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
  CDA21753  Conyza canadensis D. G. Kelch, A. G. Murdock 2005-7-14 5 .463 Contra Costa Carquinez Strait Region; Arroyo del Hambre; Franklin Creek near Glen Frazier. Comment
  CAS-BOT-BC209749  Cornus glabrata V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Comment
  CAS-BOT-BC209750  Cornus glabrata V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Comment
  UC192419  Cornus glabrata E. L. Greene 1886-5-25 Contra Costa Walnut Creek Comment
  CDA19637  Crepis bursifolia Doreen Smith, Wilma Follette 2003-10-25 s.n. Contra Costa San Francisco Bay Area; Briones Park. 0 Comment
  UCD150913  Cressa truxillensis James A. Neilson Jr. 1972-11-2 3616 Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 1 Comment
  UC1121528  Crocanthemum scoparium var. vulgare R. W. Lundh Contra Costa San Francisco Quadrangle Comment
  JEPS99953  Cynara cardunculus A. Langston 2003-7-17 AL 67 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS100021  Cynodon dactylon S. O'Neil 2003-6-24 SEO 40 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC40178  Cynodon dactylon Jos. Burtt Davy 1900-6-7 6656 Contra Costa Pacheco 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
  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
  CHSC24924  Delphinium patens subsp. patens M. A. Callahan 1976-4-12 5 Contra Costa On ne slope 90 m s of roadhead on Mohawk Dr. Pleasant Hill. Comment
  UC9152  Delphinium patens subsp. patens J. Burtt Davy 1895-4-13 1008 Contra Costa near Lafayette Comment
  UC9159  Delphinium patens subsp. patens W. H. Brewer 1862-4-30 1017 Contra Costa Walnut Creek, Camp 69 Walnut Creek; , Camp 69 Comment
  UC1300933  Dichelostemma capitatum Helen K. Sharsmith 1962-3-25 4909 Contra Costa hills between Happy Valley and Alhambra Valley; San Francisco Bay Region 304 Comment
  CAS-BOT-BC150328  Diplacus aurantiacus D. E. Breedlove 1970-4-18 17427 Contra Costa At the north edge of Lafayette above Laurel Drive 243 Comment
  UCD54987  Downingia pulchella Peter M. Ray; S. G. Smith and F. Chisaki 1951-4-14 1980 Contra Costa Small pond 7 miles north of Walnut Creek; east of Highway #21; 0.2 mile south of intersection with highway 4. 6 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
  POM319552  Echinochloa crus-galli Patricia Wilder 1961-8-29 1098 a Contra Costa Walnut Creek, near Calif. Hwy 24 west side of city; Coast Mt. Range 42 Comment
  JEPS45767  Elatine heterandra W. L. Jepson 1891-5-22 13954 Contra Costa Walnut Creek Comment
  UC691973  Eleocharis rostellata Mary L. Bowerman 1933-4-22 1883 Contra Costa Shell Ridge, NW end, just S of the highway Mount Diablo (Heather Farm) Comment
  SEINET12755579  Elymus triticoides J. B. Davy 1900-6-7 6658 Contra Costa Near Pacheco. Comment
  UCD150882  Epilobium brachycarpum James A. Neilson Jr. 1972-11-2 3605 Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 Comment
  JEPS100099  Eremocarpus setiger A. Langston 2003-7-9 AL 64 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD150888  Erigeron canadensis James A. Neilson Jr. 1972-11-2 3607 Contra Costa Channel of Walnut Creek ca. 1 mi. north of junction of Pine Creek Elevation estimated using Google Earth by label maker. 1 Comment
  UC31470  Erigeron foliosus var. franciscensis Edw. L. Greene 1892-6-20 Contra Costa Walnut Creek Comment
  UC31514  Erigeron philadelphicus var. philadelphicus J. Burtt Davy 1895-4-13 1007 Contra Costa near Lafayette Comment
  JEPS56455  Eriogonum roseum Willis L. Jepson 1895-9-14 14779 Contra Costa Walnut Creek Comment
  SEINET3836874 Image available Eriogonum roseum W. L. Jepson 1895-9-14 14779 Contra Costa Walnut Creek Comment
  CHSC75094  Erodium moschatum Roger Thom 1987-5-26 17 Contra Costa 1900 block of Geary Rd. Walnut Creek. 30 Comment
  CAS-BOT-BC402981  Eschscholzia californica A. Eastwood 1894-5-4 s.n. Contra Costa Walnut Cr. Comment
  CHSC75109  Eschscholzia californica Roger Thom 1987-4-21 6 Contra Costa 3300 block of Johnson Rd. Lafayette. 167 Comment
  OBI69745  Eucalyptus pulverulenta Jenn Yost & Matt Ritter, Matt Ritter 2008-11-15 362 Contra Costa Dan Sekella's House at 1410 Mohr Ct, Walnut Crk Comment
  CHSC75081  Euphorbia peplus Roger Thom 1987-5-24 15 Contra Costa 1510 Carmel Dr. Walnut Creek. Rose garden. 30 Comment
  CHSC75044  Foeniculum vulgare Roger Thom 1987-5-18 13 Contra Costa 1.0mi from intersection with Pleasant Hill Rd on Reliez Valley Road. Lafayette. (1600 block) 182 Comment
  UC2013031  Galium parisiense Barbara Ertter with Travis Columbus 1990-6-10 9107 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill; above junction of Spengler and Blue Oaks trails. Comment
  UC1300816  Geranium molle Helen K. Sharsmith 1962-4-18 4956 Contra Costa Reliez Valley Road San Francisco Bay Region 152 Comment
  CHSC75085  Glycyrrhiza lepidota Roger Thom 1987-5-13 9 Contra Costa Calif. State University Hayward's Contra Costa Campus. 3100 Oak Park Blvd. Pleasant Hill. 30 Comment
  JEPS41884  Grindelia hirsutula W. L. Jepson 1895-9-14 Contra Costa Walnut Creek Comment
  UC2013035  Grindelia hirsutula Barbara Ertter with Travis Columbus 1990-6-10 9099 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill; trail heading down ridge on N side of Briones Peak, at junction with Spengler Trail. Comment
  RSA455866  Gutierrezia californica E. E. Stanford 1930-9-20 2101 Contra Costa Near Walnut Creek Comment
  UC566690  Helenium puberulum H. L. Mason 1924-11-23 1162 Contra Costa Las Trampas Creek Comment
  CAS-BOT-BC305323  Helianthella castanea D. E. Breedlove 1970-4-18 17440 Contra Costa At the north edge of Lafayette above Laurel Drive 243 Comment
  UC2013032  Helianthella castanea Barbara Ertter with Travis Columbus 1990-6-10 9107 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill; E-facing steep hillside above junction of Spengler and Blue Oaks trails. Comment
  JEPS35456  Helianthus annuus W. L. Jepson 1895-9-14 Contra Costa Walnut Creek Comment
  UCR260817  Helianthus annuus D. Finley 1998-4-25 1- 07 Contra Costa San Francisco Bay Region, Lafayette, 2.5 miles at the crow flies west of highway 24 east in a residential area, on Lafayette Ridge behind 1212 Monticello Road 229 Comment
  JEPS111842  Heliotropium curassavicum D. G. Kelch 2004-7-9 04 .307 Contra Costa Muir grave Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  UCD151071  Heliotropium curassavicum var. oculatum James A. Neilson Jr. 1972-11-2 3610 Contra Costa Contra Costa County. Walnut Creek drainage. (Elevation estimated using Google Earth by label maker.) 1 Comment
  CHSC75063  Helminthotheca echioides Roger Thom 1987-5-28 26 Contra Costa 3300 block of Johnson Rd. 0.3 mi from intersection with Reliez Valley Rd. Lafayette. Edge of pasture. 137 Comment
  CAS-BOT-BC314857  Hemizonia congesta subsp. luzulifolia R. F. Hoover 1937-9-2 s.n. Contra Costa Walnut Creek Comment
  CAS-BOT-BC314858  Hemizonia congesta subsp. luzulifolia R. F. Hoover 1937-9-2 2709 Contra Costa Walnut Creek Comment
  JEPS12597  Hemizonia congesta subsp. luzulifolia R. F. Hoover 1937-9-2 2709 Contra Costa Walnut Creek Comment
  UC570418  Hemizonia congesta subsp. luzulifolia Chas. M. Belshaw 1936-10-26 2722 Contra Costa fallow fields near Walnut Creek; Coast Ranges Comment
  UC762663  Hemizonia congesta subsp. luzulifolia R. F. Hoover 1937-9-2 2709 Contra Costa Walnut Creek Comment
  UC990637  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1909-9-25 Contra Costa Walnut Creek Comment
  SEINET5782065 Image available Hemizonia fitchii L. S. Rose 1941-10-13 41464 Contra Costa 1 mi E of Walnut Creek Comment
  SEINET7883352 Image available Hemizonia heermannii L. S. Rose 1941-1 41465 Contra Costa 1 mi E of Walnut Creek Comment
  SBBG44745  Heracleum maximum Leota Davidson 1966-5-2 417 Contra Costa Hwy 24 near Walnut Crk turn-off Comment
  UCD84891  Holcus mollis David L. Hanson 1978-3-7 s.n. Contra Costa Contra Costa County. Comment
  CDA7978  Holocarpha heermannii A. G. Murdock, D. G. Kelch 2002-7-2 67 Contra Costa Carquinez Strait Region; Mt. Wanda - Martinez. Crest of Mt. Wanda on north side of main fire road. Comment
  JEPS111636  Holocarpha heermannii Andrew G. Murdock 2002-7-20 67 Contra Costa Mount Wanda - Martinez; ; ; crest of Mount Wanda on N side of fire road in large meadow 85 Comment
  JEPS12900  Holocarpha heermannii L. S. Rose 1941-10-13 41465 Contra Costa 1 mi e of Walnut Creek 50 Comment
  JEPS13469  Holocarpha heermannii W. L. Jepson 1895-9-14 Contra Costa Walnut Creek Comment
  SEINET5782138 Image available Holocarpha heermannii L. S. Rose 1941-10-13 41465 Contra Costa 1 mi E of Walnut Creek Comment
  UC1332423  Holocarpha heermannii P. B. Dickey 1932-9-14 164 Contra Costa Walnut Creek Comment
  UC897717  Holocarpha heermannii Lewis S. Rose 1941-10-13 41465 Contra Costa 1 mi e Walnut Creek 45 Comment
  UCD36924  Hordeum brachyantherum Beecher Crampton 1956-5-14 3413 Contra Costa 1 mile east of Pacheco, Buchanan Field. Comment
  UCD85488  Hordeum brachyantherum Beecher Crampton 1956-5-14 3413 Contra Costa 1 mile east of Pacheco, Buchanan Field. Comment
  UC55038  Hordeum marinum subsp. gussoneanum Jos. Burtt Davy 1900-6-7 6657 Contra Costa near Pacheco Comment
  UCD85827  Hordeum marinum subsp. gussoneanum Beecher Crampton 1956-5-14 3411 Contra Costa 1 mile east of Pacheco, Buchanan Field. Comment
  A422689  Juglans californica L. Abrams 1916-7-29 6306 Unknown Walnut Creek Comment
  GH422675  Juglans californica A. Eastwood 1894-5-4 Unknown Walnut Cr. Comment
  JEPS21838  Juglans californica var. hindsii Bryce G. Decker 1958-5-17 88 Contra Costa bank of slough 1 mi s Four Corners (se of Concord); former course of Walnut Creek Comment
  JEPS46455  Juglans californica var. hindsii W. L. Jepson 1908-8-16 3087 Contra Costa Walnut Creek Comment
  JEPS58698  Juglans californica var. hindsii W. L. Jepson 1908-8-16 3087 Contra Costa Walnut Creek Comment
  UC1197942  Juglans californica var. hindsii Joseph P. Tracy 1934-4-30 13186 Contra Costa near Lafayette; North Coast Ranges 152 Comment
  A422716  Juglans hindsii W. L. Jepson 1908-8-16 3087 Unknown Walnut Creek Comment
  A422725  Juglans hindsii W. L. Jepson 1908-8-16 3087 Unknown Walnut Creek Comment
  CAS-BOT-BC102308  Juglans hindsii L. R. Abrams 1916-7-29 6306 Contra Costa Walnut Creek Comment
  POM166816  Juglans hindsii L. R. Abrams 1916-7-29 s.n. Contra Costa Walnut Creek Comment
  UC691987  Juncus ambiguus Mary L. Bowerman 1933-4-22 1885 Contra Costa nw end of Shell Ridge (s of highway (Heather Farm), Mount Diablo); Mount Diablo, Shell Ridge Comment
  JEPS100049  Juncus bufonius A. Langston 2003-6-6 AL 39 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC692075  Juncus mexicanus Mary L. Bowerman 1933-4-22 1884 Contra Costa nw end Shell Ridge (s of the highway (Heather Farm)); Mount Diablo Comment
  JEPS100048  Juncus patens A. Langston 2003-6-6 AL 38 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS112433  Juncus xiphioides D. G. Kelch 2004-7-9 04 .307 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  UC2029085  Juncus xiphioides Barbara Ertter 2000-7-16 17407 Contra Costa Pine Creek on WNW base of Mount Diablo Comment
  UC2029169  Juncus xiphioides Barbara Ertter 2000-7-16 17407 Contra Costa Pine Creek on WNW base of Mount Diablo Comment
  GH97688  Krynitzkia trachycarpa W. H. Brewer 1862-4-30 1007 Unknown In Walnut Creek, in damp places Comment
  UC90073  Lasthenia conjugens T. S. Brandegee Jun 1884 Contra Costa Walnut Creek Comment
  UC1598597  Lasthenia glaberrima A. D. E. Elmer 1903-5-1 4321 Contra Costa Walnut Creek Comment
  CAS-BOT-BC213349  Lathyrus jepsonii subsp. californicus Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley Comment
  CAS-BOT-BC213350  Lathyrus jepsonii subsp. californicus Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley Comment
  CAS-BOT-BC213351  Lathyrus jepsonii subsp. californicus Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley Comment
  UC15383  Lathyrus jepsonii var. californicus W. H. Brewer 1862-4-30 1018 Contra Costa Camp 69 Walnut Creek Comment
  JEPS99995  Lathyrus latifolius G. Smick 2003-5-30 GAS 199 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS100082  Lepidium latifolium A. Langston 2003-6-6 AL 34 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC402590  Lepidium nitidum I. J. Condit 1913-3-19 Contra Costa Walnut Creek Comment
  RSA108330  Leymus triticoides Frank W. Gould 1941-5-16 1298 Contra Costa In roadside ditch, 1/2 mile east of Lafayette on C.S. Highway 24. Comment
Read comments
Nov 1 2011
  UC53466  Leymus triticoides Jos. Burtt Davy 1900-6-7 6658 Contra Costa near Pacheco Comment
  UCD87711  Leymus triticoides Nougart 1916-12-1 s.n. Contra Costa Walnut Creek. Comment
  UC1057450  Limnanthes douglasii subsp. nivea G. Thomas Robbins 1937-4-25 150 Contra Costa near Walnut Creek Comment
  UC17899  Limnanthes douglasii subsp. nivea W. H. Brewer 1862-4-30 1009 Contra Costa Camp 69 Walnut Creek Comment
  CAS-BOT-BC430613  Lithophragma affine Lewis S. Rose 1933-4-17 33099 Contra Costa Walnut Creek Comment
  GH363729  Lithophragma affine L. S. Rose 1933-4-17 33099 Unknown Walnut Creek Comment
  UC518019  Lithophragma affine Lewis S. Rose 1933-4-17 33099 Contra Costa Walnut Creek Comment
  CHSC75233  Lolium perenne Roger Thom 1987-5-13 7 Contra Costa Contra Costa Campus of Hayward Calif. State University. 3100 Oak Park Blvd. Pleasant Hill. Field. 30 Comment
  GH360206  Lolium temulentum W. H. Brewer 1000 Unknown Walnut Creek Comment
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Dec 4 2015
  CHSC75087  Lotus corniculatus Roger Thom 1987-6-1 27 Contra Costa California State University Hayward's Contra Costa Campus. 3100 Oak Park Blvd. Pleasant Hill. 30 Comment
  UC178931  Lupinus Katharine Brandegee Contra Costa Walnut Creek Comment
  GH366675  Lupinus albifrons W. H. Brewer May 1, 1860-62 1038 Unknown S. Walnut Creek Comment
Read comments
Dec 4 2015
  UC15783  Lupinus albifrons unknown 1038 Contra Costa Walnut Creek Comment
  UC15822  Lupinus albifrons W. H. Brewer 1862-5-1 1038 Contra Costa s Camp 69; s of Camp 69 Comment
  UC1129392  Lupinus bicolor R. W. Lundh 1933-3-25 220 Contra Costa 1 mi w and 1/2 mi n Lafayette Acalanes Grant; Concord Quad. 213 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
  UC15915  Lupinus luteolus Mrs. T. J. Maynard 1897-7-28 Contra Costa Walnut Creek Comment
  CHSC75089  Lupinus polycarpus Roger Thomas 1987-4-21 5 Contra Costa 3300 block of Johnson Rd. Lafayette. 152 Comment
  UCD150881  Lythrum hyssopifolia James A. Neilson Jr. 1972-11-2 3617 Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 Comment
  UC5897  Maclura pomifera W. G. Klee June 1880 Contra Costa road to Walnut Creek Comment
  SDSU7507  Malacothamnus fremontii D. F. Howe 1968-5-20 4515 Contra Costa Comment
  UCD150879  Malva nicaeensis James A. Neilson Jr. 1972-11-2 3619 Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 1 Comment
  CDA35747  Malvella leprosa D. G. Kelch, Andrew G. Murdock 2004-7-9 4 .306 Contra Costa Carquinez Strait; Alhambra Creek, Martinez, near Muir gravesite, Arroyo del Hambre. Comment
  JEPS111545  Malvella leprosa D. G. Kelch 2004-7-9 04 .306 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  UCD150880  Malvella leprosa James A. Neilson Jr. 1972-11-2 3618 Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 Comment
  CAS-BOT-BC281431  Melica imperfecta D. E. Breedlove 1970-4-18 17433 Contra Costa At the N edge of Lafayette above Laurel Drive 243 Comment
  UC53660  Melica torreyana Jos. Burtt Davy 1899-4-19 7862 Contra Costa Las Trampas Creek Comment
  CDA1109  Melissa officinalis D. G. Kelch 2005-7-14 5 .462 Contra Costa Carquinez Strait Region; Arroyo del Hambre; Franklin Creek near Glen Frazier. Comment
  UCD150883  Mentha X piperita James A. Neilson Jr. 1972-11-9 s.n. Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 Comment
  GH21070  Micropus amphibolus W. H. Brewer 1860-1-1 1015 Unknown Walnut Creek Comment
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Dec 4 2015
  GH21071  Micropus amphibolus W. H. Brewer 1860-1-1 1015 Unknown Walnut Creek Comment
Read comments
Dec 4 2015
  UC35594  Micropus californicus var. californicus Brewer 1862-4-30 1015 Contra Costa Walnut Creek, camp 69 Comment
  CAS-BOT-BC348650  Micropus californicus var. subvestitus V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Val. Comment
  SJSU10601  Microseris douglasii C. O. Dudley 1966-5-8 Contra Costa Briones Hills, Reliez Valley, Lafayette 152 Comment
  UC692298  Minuartia californica Mary L. Bowerman 1935-3-16 2730 Contra Costa Shell Ridge Mount Diablo (just e of the hwy, (opposite Heather Farm)) Comment
  UC8130  Minuartia douglasii W. H. Brewer 1862-5-5 1048 Contra Costa near Walnut Creek (sw of Camp 69) Comment
  CHSC75113  Montia perfoliata Roger Thom 1987-4-17 1 Contra Costa 3300 block Johnson Rd. in Lafayette. 152 Comment
  CAS-BOT-BC259906  Nassella lepida D. E. Breedlove 1970-4-18 17447 Contra Costa At the N edge of Lafayette above Laurel Drive 243 Comment
  RSA217245  Nassella lepida D. E. Breedlove 1970-4-18 17437 Contra Costa At the north edge of Lafayette above Laurel Drive 244 Comment
  JEPS87936  Navarretia squarrosa Barbara Ertter with Laura Fujii 1990-7-21 9398 Contra Costa w of Pleasant Hill (near junction of Briones Crest and Spengler trails); Briones Regional Park, Briones Hills 396 Comment
  UC1607552  Navarretia squarrosa Barbara Ertter with Laura Fujii 1990-7-21 9398 Contra Costa w of Pleasant Hill (near junction of Briones Crest and Spengler trails); Briones Regional Park, Briones Hills 396 Comment
  UC23887  Navarretia viscidula Edw. L. Greene 1892-6-19 Contra Costa Walnut Creek 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
  UC1128080  Oemleria cerasiformis R. W. Lundh 1933-4-2 226 Contra Costa San Francisco Quad. 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
  UC27898  Orobanche uniflora subsp. occidentalis J. Burtt Davy 1895-4-13 1004 Contra Costa Lafayette. Comment
  JEPS121587  Orobanche vallicola Sam Young 2013-8-5 s. n. Contra Costa Briones Road, ~ 50 ft SW of intersection with Alhambra Valley Road, Martinez. Comment
  JEPS82723  Orobanche vallicola Wayne Roderick 1981-10-2 Contra Costa s. entrance area Briones Regional Park 152 Comment
  UC1618306  Osmorhiza berteroi Barbara Ertter with Travis Columbus 1990-6-10 9108 Contra Costa near stream crossing on Spengler Creek ne Briones Peak (ne corner of park, w of Pleasant Hill); Briones Regional Park, Briones Hills 182 Comment
  CHSC75108  Oxalis pes-caprae Roger Thom 1987-4-21 4 Contra Costa 3300 block of Johnson Rd. Lafayette. At edge of field. 152 Comment
  CDA33874  Panicum capillare Diveney, Denijs 2008-9-17 PDR# 1454350 Contra Costa Concord; Contra Costa Canal near Grayson Creek 0 Comment
  SJSU6411  Papaver heterophyllum G. C. Dudley 1966-5-1 112 Contra Costa Reliez Valley, Briones Hills, N of Lafayette Comment
  CAS-BOT-BC71614  Pentagramma triangularis D. E. Breedlove 1970-4-18 17426 Contra Costa at the north edge of Lafayette above Laurel Drive 243 Comment
  UC2029184  Pentagramma triangularis Barbara Ertter 1990-5-19 8999 Contra Costa Lafayette Ridge of Briones Regional Park N of Lafayette. Comment
  JEPS100133  Perideridia kelloggii A. Langston 2003-7-9 AL 63 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1078912  Phoradendron macrophyllum Job Kuijt 1958-1-12 1442 Contra Costa near Walnut Creek (Saranap); Saranap Comment
  UC1078913  Phoradendron macrophyllum Job Kuijt 1958-1-12 1443 Contra Costa near Walnut Creek (Saranap); Saranap Comment
  CAS-BOT-BC141121  Phoradendron serotinum subsp. macrophyllum Lewis S. Rose 1930-12-10 s.n. Contra Costa Walnut Creek Comment
  CAS-BOT-BC141122  Phoradendron serotinum subsp. macrophyllum L. R. Abrams 1916-7-29 6307 Contra Costa Walnut Creek Comment
  UC12452  Physocarpus capitatus J. Burtt Davy 1895-4-4 1000 Contra Costa near Lafayette Comment
  UC907503  Pinus pinea Walter S. Malloch 1950-6-21 Contra Costa Lakewood subdivision Walnut Creek Comment
  UC24549  Plagiobothrys bracteatus W. H. Brewer 1862-4-30 1007 Contra Costa Camp 69 Walnut Creek Comment
  UC24586  Plagiobothrys trachycarpus W. H. Brewer 1862-4-30 1007 Contra Costa Walnut Creek; ; Walnut Creek, Camp 69 Comment
  JEPS112002  Platanus racemosa D. G. Kelch 2003-8-13 03 .122 Contra Costa Arroyo del Hambre Along Alhambra Creek E of Mt Wanda. w/ AGM 74 Comment
  JEPS112003  Platanus racemosa D. G. Kelch 2004-4-25 04 .106 Contra Costa Arroyo del Hambre Along Alhambra Creek in Martinez 74 Comment
  JEPS40297  Platanus racemosa F. W. Bancroft Oct. 1894 Contra Costa Walnut Creek Comment
  UC1126493  Platystemon californicus R. C. Wilson 1935-3-26 143 Contra Costa 2 mi n Walnut Creek; Concord Quad. Comment
  UC566962  Platystemon californicus R. C. Wilson 1935-3-26 143 Contra Costa 2 mi n Walnut Creek; Concord Quad. Comment
  CHSC24920  Plectritis ciliosa M. A. Callahan 1976-4-14 13 Contra Costa On west slope ca. 135 m. e of house at 1976 Mohawk Dr. Pleasant Hill. 140 Comment
  GH360611  Pleuropogon californicus W. H. Brewer 1860-1-1 1043 Unknown Walnut Creek Comment
  UC39496  Pleuropogon californicus W. H. Brewer 1862-5-1 1043 Contra Costa Walnut Creek Comment
  UCD90183  Pleuropogon californicus R. Tofsrud 1946-4-1 s.n. Contra Costa 1/2 mile south of Pacheco Comment
  CAS-BOT-BC260942  Pleuropogon californicus var. californicus W. H. Brewer 1862-5-1 1043 Contra Costa Walnut Creek Comment
  CAS-BOT-BC260943  Pleuropogon californicus var. californicus W. H. Brewer 1862-5-1 1043 Contra Costa Walnut Creek Comment
  UCD90185  Pleuropogon californicus var. californicus R. Tofsrud 1946-4-1 s.n. Contra Costa 1/2 mile south of Pacheco. Comment
  GH360927  Poa secunda W. H. Brewer 1024 Unknown Walnut Creek Comment
  GH360967  Poa secunda W. H. Brewer 1860-1-1 1001 Unknown Walnut Creek Comment
  CAS-BOT-BC236395  Poa secunda subsp. secunda D. E. Breedlove 1970-4-18 17551 Contra Costa At the N edge of Lafayette above Laurel Drive 243 Comment
  UC465853  Polygonum aviculare subsp. aviculare Tracy J. Storer 1912-7-12 Contra Costa 2 mi SW of Walnut Creek 60 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
  UCD91279  Polypogon monspeliensis Beecher Crampton 1956-5-14 3412 Contra Costa 1 mile east of Pacheco, Buchanan Field. Comment
  A382280  Populus fremontii W. L. Jepson 1908-8-16 3085 Unknown Walnut Creek Comment
  JEPS100004  Populus fremontii A. Langston 2003-9-16 AL 91 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS64540  Populus fremontii subsp. fremontii W. L. Jepson 1908-8-16 3085 Contra Costa Walnut Creek 22 Comment
  UC403974  Populus fremontii subsp. fremontii W. L. Jepson 1907-4 Contra Costa near Walnut Creek (San Ramon Valley); San Ramon Valley Comment
  CAS-BOT-BC148643  Ptelea crenulata V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Val. Comment
  CAS-BOT-BC148644  Ptelea crenulata V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley Comment
  CAS-BOT-BC148647  Ptelea crenulata Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Val. Comment
  UC2029093  Ptelea crenulata Barbara Ertter with Travis Columbus 1990-6-10 9110 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill, on Spengler Trail NE of Briones Peak. Comment
  UC1198069  Pterostegia drymarioides Joseph P. Tracy 1934-4-30 13191 Contra Costa near Lafayette 152 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
  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
  CAS-BOT-BC86642  Quercus douglasii Brandegee s.n. Contra Costa unspecified Comment
  UC2042780  Quercus kelloggii Barbara Ertter with Travis Columbus 1990-6-10 9115 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill, SE Alhambra Valley staging area Comment
  A343283  Quercus lobata A. Eastwood 1894-05-01 - 1894-06-01 Unknown Walnut Cr. Comment
  A343284  Quercus lobata A. Eastwood 1894-05-01 - 1894-06-01 Unknown Walnut Cr Comment
  CAS-BOT-BC362446  Rafinesquia californica Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Val. 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
  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
  JEPS99975  Ranunculus muricatus G. Smick 2003-4-29 GAS 147 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC61031  Ranunculus orthorhynchus var. bloomeri N. L. Gardner 1904-2-17 Contra Costa Happy Valley Comment
  JEPS100009  Raphanus raphanistrum G. Smick 2003-4-8 GAS 132 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CHSC75075  Raphanus sativus Roger Thom 1987-5-26 19 Contra Costa 2800 block of Buena Vista Ave. Walnut Creek. 30 Comment
  CAS-BOT-BC59895  Rhamnus ilicifolia Peter Rubtzoff 1951-10-7 816 Contra Costa Ca. 3 mi. ne. of Moraga, near Trampas and Grizzly Creeks. 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
  UC11524  Ribes divaricatum var. pubiflorum J. Burtt Davy 1895-4-13 997 Contra Costa near Lafayette Comment
  UC11525  Ribes divaricatum var. pubiflorum J. Burtt Davy 1895-4-13 997 Contra Costa Lafayette Comment
  GH346035  Rosa gymnocarpa H. L. Mason 1924-11-23 1161 Unknown Cashion Creek, Las Trampas Ridge Comment
  UC555497  Rosa gymnocarpa Herbert L. Mason 1924-11-23 1172 Contra Costa Cashion Creek Las Trampas Ridge Comment
  UC555647  Rosa gymnocarpa Herbert L. Mason 1924-11-23 1161 Contra Costa Cashion Creek Las Trampas Ridge Comment
  UC12995  Rubus ursinus W. H. Brewer 1862-4-30 1013 Contra Costa Camp 69 Walnut Creek (Walnut Creek) Comment
  SJSU5703  Rupertia physodes C. O. Dudley 1966-5-1 113 a Contra Costa Reliez Valley, Briones Hills, N of Lafayette 152 Comment
  UC1197438  Rupertia physodes Joseph P. Tracy 1934-4-30 13195 Contra Costa near Lafayette 152 Comment
  A383237  Salix laevigata C. S. Sargent 1894-3-8 Unknown Walnut Creek Comment
  A383238  Salix laevigata C. S. Sargent 1894-3-8 Unknown Walnut Creek Comment
  A383239  Salix laevigata C. S. Sargent 1894-3-8 Unknown Walnut Creek Comment
  UC437379  Salix laevigata J. Burtt Davy 1895-4-13 1011 Contra Costa near Lafayette Comment
  UC437380  Salix laevigata J. Burtt Davy 1895-4-13 1005 Contra Costa near Lafayette Comment
  A383606  Salix lasiolepis C. S. Sargent 1894-3-8 Unknown Walnut Creek Comment
  UC1196658  Salix lasiolepis Joseph P. Tracy 1930-11-27 9260 Contra Costa near Lafayette 304 Comment
  CAS-BOT-BC233289  Salvia mellifera D. E. Breedlove 1970-4-18 17448 Contra Costa At the north edge of Lafayette above Laurel Drive 243 Comment
  JEPS100122  Sambucus mexicana G. Smick 2003-4-29 GAS 150 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS12727  Sambucus mexicana W. L. Jepson 1908-8-16 3086 Contra Costa Walnut Creek Comment
  UC441298  Sambucus mexicana Tracy J. Storer 1912-7-16 Contra Costa 2 mi sw Walnut Creek 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
  UC691975  Scirpus americanus Mary L. Bowerman 1933-4-22 1882 Contra Costa just s of highway Heather Farm (Mount Diablo); , nw end Shell Ridge 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
  JEPS111898  Scirpus microcarpus D. G. Kelch 2004-7-9 04 .308 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite. 60 Comment
  UC1713668  Scutellaria tuberosa unknown 1027 Contra Costa Walnut Creek Comment
  UC25824  Scutellaria tuberosa W. H. Brewer 1862-5-1 1037 Contra Costa s of Camp 69 Comment
  UC25837  Scutellaria tuberosa unknown 1037 Contra Costa Walnut Creek Comment
  UC1046442  Sidalcea malviflora subsp. laciniata Alex D. Hawkes and R. Bacigalupi 1951-4-21 4771 Contra Costa meadow near Walnut Creek; Meadow near Walnut Creek Comment
  UC18898  Sidalcea malviflora subsp. laciniata W. H. Brewer 1862-4-30 1002 Contra Costa Camp 69 Walnut Creek, Camp 69 Comment
  UC18907  Sidalcea malviflora subsp. laciniata State Survey 1862-4-30 1002 Contra Costa Walnut Creek Comment
  UC692614  Sidalcea malviflora subsp. laciniata Mary L. Bowerman 1933-4-22 1880 Contra Costa opposite Heather Farm (near the sulphur spring, Shell Ridge where the highway crosses; meadow); Mount Diablo, Shell ridge, oppos Heather Farm 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
  JEPS100079  Sisymbrium officinale A. Langston 2003-6-19 AL 48 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC10827  Sisymbrium officinale unknown 1862-5-5 Contra Costa Walnut Creek Comment
  CHSC24841  Sisyrinchium bellum M. A. Callahan 1976-4-15 17 Contra Costa Top of ridge ca. 145m e of house at 1976 Mohawk Dr. Pleasant Hill. 152 Comment
  JEPS100043  Sisyrinchium bellum G. Smick 2003-3-4 GAS 61 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CHSC24836  Solanum umbelliferum M. A. Callahan 1976-4-14 16 Contra Costa 40 m ene of house at 1976 Mohawk Dr. Pleasant Hill. 106 Comment
  UC2042781  Solanum umbelliferum Barbara Ertter with Travis Columbus 1990-6-10 9109 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill, on Spengler Trail NE of Briones Peak Comment
  UC536676  Solanum umbelliferum Herbert L. Mason 1935-8-23 Contra Costa Cashion Canyon, Saint Mary's College Cashion Canyon; , Saint Mary's College Comment
  CHSC75065  Sonchus oleraceus Roger Thom 1987-5-26 22 Contra Costa 1100 block of Hillside Ave. Walnut Creek. Roadside. 36 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
  CDA33902  Stachys pycnantha Swan/Fonseca 2008-9-11 PDR# 1454523 Contra Costa Concord; Pine Creek 0 Comment
  UC571570  Stephanomeria virgata subsp. pleurocarpa H. K. Sharsmith 1933-9-24 Contra Costa highway w Walnut Creek Comment
  CAS-BOT-BC422908  Stylomecon heterophylla D. E. Breedlove 1970-4-18 17430 Contra Costa At the north edge of Lafayette above Laurel Drive. 243 Comment
  CAS-BOT-BC422916  Stylomecon heterophylla Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Val. Comment
  CAS-BOT-BC269562  Symphoricarpos albus var. laevigatus V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Val. Comment
  UC416573  Symphoricarpos albus var. laevigatus Tracy I. Storer 1912-7-13 Contra Costa 2 mi sw Walnut Creek Comment
  CDA37132  Tamarix parviflora Wil Schaub 2012-4-19 PDR# 1641194 Contra Costa Lafayette; 3697 Happy Valley Road. 0 Comment
  UC19168  Tamarix parviflora J. Burtt Davy 1895-4-13 1013 Contra Costa Lafayette Comment
  CHSC75158  Tanacetum parthenium Roger Thom 1987-5-24 14 Contra Costa 3354 Johnson Rd., Lafayette. 167 Comment
  UC1301106  Taraxia ovata Helen K. Sharsmith 1962-4-18 4957 Contra Costa Reliez Valley Rd. San Francisco Bay Region 152 Comment
  UC1618308  Tauschia hartwegii Barbara Ertter with Travis Columbus 1990-6-10 9106 Contra Costa ne corner Briones Regional Park (e-facing steep hillside above junction of Spengler and Blue Oak trails, Briones Hills, w of Pleasant Hill); ne corner of Briones Regional Park, Briones Hills 274 Comment
  CAS-BOT-BC172933  Toxicodendron diversilobum D. E. Breedlove 1970-4-18 17442 Contra Costa At the north edge of Lafayette above Laurel Drive 243 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
  JEPS63121  Trichostema lanceolatum W. L. Jepson 1895-9-14 14880 Contra Costa Lafayette Comment
  UC147749  Trifolium albopurpureum var. dichotomum Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  UC630753  Trifolium albopurpureum var. dichotomum Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  UC16605  Trifolium albopurpureum var. olivaceum W. H. Brewer 1862-4-30 1019 Contra Costa Camp 69 Walnut Creek Comment
  UC146057  Trifolium bifidum var. decipiens Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  CHSC24925  Trifolium ciliolatum M. A Callahan 1976-4-15 20 Contra Costa Ca. 15 mi ne of house at 1976 Mohawk Dr. Pleasant Hill. 121 Comment
  UC16457  Trifolium ciliolatum Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  UC165565  Trifolium depauperatum var. amplectens Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  JEPS65752  Trifolium depauperatum var. truncatum Ivar Tiderstrom 1895-4-13 Contra Costa Lafayette Comment
  UC147173  Trifolium depauperatum var. truncatum Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  UC692647  Trifolium depauperatum var. truncatum Mary L. Bowerman 1932-3-23 1125 Contra Costa betw Monument and Concord (Oak Grove School junction); Mount Diablo Comment
  UC16512  Trifolium fucatum W. H. Brewer 1862-5-1 1040 Contra Costa s Camp 69; Walnut Creek Comment
  UC16513  Trifolium fucatum W. H. Brewer 1862-5-5 1045 Contra Costa Camp 69 Walnut Creek Comment
  UC16534  Trifolium fucatum W. H. Brewer 1862-4-30 1006 Contra Costa Camp 69 Walnut Creek Comment
  UC33446  Trifolium fucatum Jos. Burtt Davy 1895-4-13 999 Contra Costa Lafayette Comment
  UC692316  Trifolium fucatum Mary L. Bowerman 1932-3-23 1124 Contra Costa betw Monument and Concord (Oak Grove School junction); Mount Diablo Comment
  UC16559  Trifolium gracilentum W. H. Brewer 1862-4-30 1010 Contra Costa Camp 69 Walnut Creek Comment
  UC631032  Trifolium gracilentum Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  UC16618  Trifolium microcephalum W. H. Brewer 1862-4-30 1020 Contra Costa Camp 69 Walnut Creek Comment
  UC16753  Trifolium obtusiflorum W. H. Brewer 1862-4-30 1005 Contra Costa Camp 69 Walnut Creek Comment
  UC165547  Trifolium oliganthum Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  UC165546  Trifolium variegatum var. melananthum Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  UC692680  Trifolium variegatum var. melananthum Mary L. Bowerman 1932-3-23 1126 Contra Costa betw Monument and Concord (Oak Grove School junction); Mount Diablo Comment
  UC16750  Trifolium willdenovii W. H. Brewer 1862-4-30 1021 Contra Costa Camp 69 Walnut Creek Comment
  JEPS15190  Triphysaria eriantha subsp. eriantha R. C. Wilson 1935-3-26 144 Contra Costa 2 mi n Walnut Creek; Concord Quad. 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
  JEPS100055  Umbellularia californica G. Smick 2003-2-20 GAS 47 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1196278  Umbellularia californica Joseph P. Tracy 1930-11-27 9262 Contra Costa near Lafayatte 152 Comment
  UC2029170  Verbena lasiostachys var. scabrida Barbara Ertter 2000-7-16 17409 Contra Costa Pine Creek on WNW base of Mount Diablo. Comment
  UC2029171  Verbena lasiostachys var. scabrida Barbara Ertter 2000-7-16 17409 Contra Costa Pine Creek on WNW base of Mount Diablo. Comment
  UC27730  Veronica peregrina subsp. xalapensis W. H. Brewer 1862-4-30 1026 Contra Costa Walnut Creek, Camp 69 Walnut Creek; , Camp 69 Comment
  CHSC75276  Vicia sativa Roger Thom 1987-4-21 2 Contra Costa 3354 Johnson Rd. Lafayette. Comment
  UC1300884  Vicia sativa subsp. nigra Helen K. Sharsmith 1962-4-18 4958 Contra Costa Reliez Valley Road; San Francisco Bay Region 152 Comment
  JEPS100123  Vinca major G. Smick 2003-3-27 GAS 92 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CHSC24921  Wyethia glabra M. A. Callahan 1976-4-11 3 Contra Costa Ca. 300 ft. e of house at 1976 Mohawk Dr. Pleasant Hill on steep w slope. 137 Comment
  JEPS100164  Wyethia helenioides S. O'Neil 2003-3-11 SEO 14 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS100163  Xanthium spinosum A. Langston 2003-7-28 AL 78 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS100067  Xanthium strumarium A. Langston 2003-7-28 AL 77 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment



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