Search Results — 2000 specimen records retrieved (1372 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
  UC1187354  Abies bracteata Rimo Bacigalupi 1960-4-4 7360 Contra Costa w slopes of upper Wildcat Canyon ((on short side of road toi corporation yard)); Tilean Regional Park, Berkeley Hills 297 Comment
Read comments
1
  UC1618268  Abutilon theophrasti Barbara Ertter with CNPS 1990-8-19 9622 Contra Costa E side of S end of Briones Reservoir N of Orinda, along Bear Creek trail on EBMUD land, near junction of main trail and path to Briones Overlook Staging Area 182 Comment
  UC1779710  Acacia dealbata Rudolf Schmid 1997-5-21 1997 -13 Contra Costa Hillside Natural Area, El Cerrito; NW of King Ct. entrance. 175 Comment
Read comments
Mar 25 2010
  CAS-BOT-BC177068  Acacia melanoxylon Walter Knight 1978-7-13 3102 Contra Costa Browns Island Comment
  JEPS106432  Acacia retinodes Barbara Ertter with Richard Rabeler 1994-6-2 12820 Contra Costa edge of San Francisco Bay on overgrown point south of Central Avenue at Point Isabel (subsequently cleared as part of new Eastshore State Park). Comment
  UC1050368  Acacia verticillata N. Floy Bracelin 1942-7-4 2172 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC436989  Acaena pinnatifida var. californica John Thomas Howell 1933-5-14 11285 Contra Costa Hills east of St. Mary's College Comment
  CAS-BOT-BC331612  Acer macrophyllum Paul F. Covel 1940-4-21 s.n. Contra Costa Las Trampas Canyon Comment
  CAS-BOT-BC331615  Acer macrophyllum Peter H. Raven; H. L. Mason; R. Ornduff; et al. 1957-4-11 10621 Contra Costa Curry Canyon, 3.4 miles S of Recreation Ground Comment
  CDA35552  Acer macrophyllum D. G. Kelch, A. G. Murdock 2004-4-25 4 .109 Contra Costa Carquinez Strait Region; West Martinez on Scenic Drive at Road Gate. Ozol Rock. Comment
  SBBG27297  Acer negundo A. Carter 1937-3-28 1227 Contra Costa Moraga Valley, 2.5 mi N of Moraga 182 Comment
  POM247254  Acer negundo subsp. californicum Annetta Carter 1937-3-28 1227 Contra Costa Moraga Valley, 2 1/2 miles north of Moraga 183 Comment
  LA210535  Acer negundo var. californicum Annetta M. Carter; 1937-3-28 1227 Contra Costa Moraga Valley, 2.5 mi N of Moraga. 182 Comment
  CAS-BOT-BC334184  Acer negundo var. californicum John Thomas Howell 1925-11-7 1549 Contra Costa Between Pinehurst and Canyon Station, San Leandro Canyon Comment
  UC692720  Acer negundo var. interior Mary L. Bowerman 1931-10-23 1063 a Contra Costa Riggs Canyon mouth Mount Diablo, Riggs Canyon mouth (by stream-bed) 228 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
  UC691726  Achillea millefolium Mary L. Bowerman 1931-4-25 751 Contra Costa 2 mi by road from Mt. Diablo West Entrance; Mount Diablo Comment
  RSA719886  Achillea millefolium Linda E. Watson 1996-5-19 96 -4 Contra Costa Foothills of Mt. Diablo, 11 miles east of Clayton, on road to Byron. Comment
  RSA33996  Achillea millefolium var. californica J. Wendell Howe 1930-3-30 s.n. Contra Costa Hill Tops Comment
  CDA299  Achyrachaena mollis D. G. Kelch, A. G. Murdock 2005-5-6 5 .23 Contra Costa Carquinez Strait Region; Franklin Canyon. East of Christie Road. South of Route 4. Comment
  HSC91986  Achyrachaena mollis Scott Brush, Ross Jones, Maggie Wolfe 1990-4-29 75 Contra Costa 549 Comment
  CAS-BOT-BC29889  Achyrachaena mollis Rimo Bacigalupi 1920-4-10 1278 Contra Costa Grade above Arroyo Mocho on way to Cedar Mtn. about 10 miles SE of Livermore Comment
  SEINET11854800  Achyrachaena mollis Ottley 1920-1 486 Contra Costa San Francisco Bay Region. Field near Eagle Point, Mt. Diablo 213 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
  UCD158715  Acroptilon repens James A. Neilson Jr. 1974-8-13 3472 Contra Costa Bradford Island. (Elevation estimated using Google Earth by label maker.) 0 Comment
  POM339729  Actaea rubra subsp. arguta F. R. Fosberg 1969-8-13 51420 Contra Costa Canyon Comment
  JEPS46396  Adenostoma fasciculatum W. L. Jepson 1919-1-25 8211 Contra Costa Moraga Ridge Comment
  SEINET6412858  Adiantum jordanii C. Newberry 1994-4-30 7255 Contra Costa Mount Diablo State Park, trail from Mitchell Cn. Prkng to Donner Cr. 900 Comment
  CAS-BOT-BC202598  Aesculus californica Miss E. Cannon 1892-6-4 s.n. Contra Costa Concord Comment
  LA205595  Aesculus californica J. A. Ewan; 1936-5-31 9715 Contra Costa Wildcat Creek Comment
  OBI49101  Aesculus californica Joseph Andorfer Ewan 1936-5-31 9715 Contra Costa Wildcat Crk Comment
  UCD36920  Agoseris grandiflora Beecher Crampton 1956-5-14 3400 Contra Costa Mount Diablo, south of Windy Point. Comment
  JEPS36319  Agoseris grandiflora var. grandiflora W. L. Jepson 1943-6-8 20846 Contra Costa midway of ridge Moraga Ridge Comment
  JEPS36323  Agoseris grandiflora var. grandiflora W. L. Jepson 1922-5-26 9674 Contra Costa grassy hills North Berkeley Hills Comment
  JEPS75562  Agoseris grandiflora var. grandiflora P. F. Yorks 1975-5-15 400 Contra Costa ca 1.6 km s, on Hampton Rd in Hampton Road National Reserve Bear Creek Road; Briones Reservoir, Hampton Road National Reserve 180 Comment
  UC29367 Image available Agoseris grandiflora var. grandiflora Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Mt. Diablo Comment
  UC691457  Agoseris grandiflora var. grandiflora Mary L. Bowerman 1933-5-17 2107 Contra Costa branch of Curry due s Olafson's barn; Curry River 289 Comment
  CAS-BOT-BC22972  Agoseris heterophylla Alice Eastwood 1915-5-30 4472 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC46098  Agoseris hirsuta John Thomas Howell 1925-12-6 1611 Contra Costa Ridge between Redwood Canon and San Leandro Canon, Oakland Hills Comment
  CAS-BOT-BC13348  Agoseris retrorsa LeRoy Abrams 1921-5-25 8030 Contra Costa Summit Mount Diablo Comment
  CHSC116630  Agrostis avenacea Lowell Ahart; Josephine Guardino 2016-4-19 20787 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Below the high water line of Los Vaqueros Reservoir, 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  CAS-BOT-BC127342  Agrostis exarata Mary L. Bowerman 1933-9-9 2434 Contra Costa Mount Diablo. Frog Pond. Comment
  UC692381  Agrostis exarata Mary L. Bowerman 1933-8-26 2413 Contra Costa at and below Lower Canyon Spring; Mount Diablo 975 Comment
  UC2028527  Agrostis exarata Barbara Ertter 1997-11-1 15884 Contra Costa South side Mount Diablo, end of spur road east of Knobcone Point, below powerline crossing at head of Alamo Creek drainage. Comment
  UCD37372  Agrostis exarata var. pacifica Beecher Crampton 1959-9-3 5455 Contra Costa Contra Costa County, 2 miles north of city of Orinda, Bear Creek, East Bay Municipal Utilities District Project. Comment
  UC1795795  Agrostis hallii Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14221 Contra Costa Mt. Diablo southeast of Walnut Creek, north-facing slope north of Curry Point, grassy semishade at edge of oak woodland. 518 Comment
  RSA0029679  Agrostis pallens Barbara Ertter, Tony Morosco 1998-9-18 16433 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, above sand quarry [subsequently developed] on south side of Ygnacio Valley Road, SE slope below water tank. Comment
  JEPS99592  Agrostis viridis Mary Bowerman 1993-10-22 Contra Costa Mount Diablo, Pine Pond, South side. Comment
  UCD55743  Aira caryophyllea Beecher Crampton 1956-5-14 3416 Contra Costa 1/2 mile west of Martinez, on road to Crockett. Comment
  UC1606340  Alisma plantago-aquatica Barbara Ertter, Brad Olson 1991-9-28 10847 Contra Costa between Orinda and El Sobrante (s end of San Pablo Reservoir); San Pablo Reservoir 94 Comment
  UC1618271  Alisma plantago-aquatica Barbara Ertter 1990-9-10 9638 Contra Costa s of Martinez (Briones Regional Park, Briones Hills, at margin of main Sindicich Lagoon); Briones Regional Park, Briones Hills 365 Comment
  UCD32425  Alisma triviale Beecher Crampton 1950-6-10 589 Contra Costa 1 mile north of Richmond, along Santa Fe R.R. 15 Comment
  CAS-BOT-BC175356  Allenrolfea occidentalis C. Hart Merriam 1906-9-13 s.n. Contra Costa Byron Hot Springs Comment
  CDA23224  Allenrolfea occidentalis T. C. Fuller 1965-11-24 14321 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
  UC1133799  Allium falcifolium C. M. Belshaw 1936-5-8 2067 Contra Costa se slope of Mt. Diablo Mt. Diablo Quadrangle, Mt. Diablo Comment
  UC188708  Allium falcifolium J. W. Congdon 1896-5-30 Contra Costa Summit Mt. Diablo 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-BC469112  Allium falcifolium L. R. Abrams 1921-5-25 8038 Contra Costa Mt. Diablo, Summit Comment
  CAS-BOT-BC469115  Allium falcifolium John Thomas Howell 1941-4-6 16179 Contra Costa Ridge east of Deer Flat, Mt. Diablo Comment
  RSA34737  Allium serra R. C. Rollins 1946-3-25 3043 Contra Costa Western slope of Mount Diablo. Comment
  UC692024  Allium unifolium Mary L. Bowerman 1935-5-18 3019 Contra Costa nw-facing slope across the road from and a little e parking area; Mt. Diablo 1066 Comment
  CAS-BOT-BC476607  Allium unifolium John Thomas Howell 1931-5-12 6469 Contra Costa Oakland Hills Comment
  UC2028115  Allium unifolium Barbara Ertter with Richard K. Brummitt 1998-5-6 16094 Contra Costa Lower Donner Canyon on north base of Mount Diablo, Hetherington Trail upstream from Donner Cabin. Comment
  UC692021  Allium unifolium Mary L. Bowerman 1933-5-22 2165 Contra Costa flat at head of n ridge w 1970; Mount Diablo, Inner Black Hills Comment
  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
  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-BC170934  Alnus rhombifolia Alice Eastwood 1921-4-18 s.n 10294 Contra Costa Antioch Comment
  UC13501  Alnus rhombifolia W. C. Blasdale 1891-3-7 Contra Costa San Pablo Comment
  POM300606  Alnus rhombifolia Mary L. Bowerman 1931-10-13 1058 Contra Costa Alamo Canyon. Mount Diablo. 259 Comment
  RSA452847  Alnus rubra M. B. Dunkle 1931-7-18 2526 Contra Costa Strawberry Canyon, Berkeley. San Francisco Bay Region. Comment
  UC37122  Alopecurus saccatus W. H. Brewer 1862-5-1 1042 Contra Costa Walnut Creek Comment
  UC768586  Alopecurus saccatus R. F. Hoover 1937-5-14 2120 Contra Costa Byron Hot Springs Comment
  CDA20558  Alternanthera philoxeroides unknown 2005-6-23 s.n. Contra Costa San Francisco Bay Area; Garden weed in Danville, CA. 0 Comment
  UC2027977  Amaranthus albus Barbara Ertter with Mary Bowerman 1996-11-1 15397 Contra Costa North base of Mount Diablo, downstream from Mitchell Canyon parking lot. 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
  IRVC19819  Ambrosia psilostachya var. californica J. Powell 1977-12-11 1345 Contra Costa 1mile E of Antioch. Comment
  JEPS111616  Ammi majus D. G. Kelch 2004-6-6 04 .231 Contra Costa Pacheco Marsh In large fill area North of Frontage Road. In marsh East of Martinez and I-680. 5 Comment
  UC1051334  Amphilophium buccinatorium N. Floy Bracelin 1941-6-15 1394 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC222220  Amsinckia John Thomas Howell 1934-4-8 11827 Contra Costa South of Antioch Comment
  CAS-BOT-BC222231  Amsinckia John Thomas Howell 1933-3-29 10916 Contra Costa Pittsburg Comment
  UC78278  Amsinckia grandiflora T. S. Brandegee May 1887 Contra Costa Judsonville Comment
  JEPS25352  Amsinckia intermedia Rimo Bacigalupi with Paul C. Hutchison and John Weiler 1959-3-19 6962 Contra Costa 2.4 mi w of Byron (and 0.3 mi e of junction with Vasco Road, along Camino Diablo); Camino Diablo 60 Comment
  JEPS73693  Amsinckia intermedia L. R. Heckard with Wm. Hirano and Ted Niehaus 1968-3-5 1762 Contra Costa 3 mi se Byron (at junction of Holey Road, along Byron-Bethany Road) 7 Comment
  UC725373  Amsinckia intermedia A. A. Heller 1938-4-9 15016 Contra Costa 3 mi sw of Antioch Comment
  RSA0090980  Amsinckia intermedia Robert F. Hoover 1938-4-20 3179 Contra Costa Between San Pablo and Reservoir. Comment
  UC1084622  Amsinckia lunaris Francia Chisaki, Peter Kamb Ray 1952-5-4 2275 Contra Costa 1.5 mi e Orinda-Richmond road (leaving this road ca 1 mi n of Orinda); Bear Creek Road Comment
  UC762105  Amsinckia lunaris R. F. Hoover 1939-5-20 4105 Contra Costa lower end of San Pablo Resevoir Comment
  JEPS25354  Amsinckia lycopsoides Rimo Bacigalupi with Paul C. Hutchison and John Weiler 1959-3-19 6964 Contra Costa 1.9 mi w Byron (at road summit along Camino Diablo) 54 Comment
  UC2027923  Amsinckia lycopsoides Barbara Ertter, Dan Norris 2001-4-15 17616 Contra Costa Diablo Foothills Regional Park, Stonegate Trail near Foothills Trail junction. Comment
  RSA0089987  Amsinckia retrorsa Lyman Benson 1935-3-16 6283 Contra Costa 3 miles S of Antioch. Mt. Range: Mt. Diablo; Watershed: Sacramento River. 152 Comment
  CAS-BOT-BC26957  Amsinckia sparsiseta Alice Eastwood 1914-3-14 3796 Contra Costa Byron Springs Comment
  JEPS68948  Amsinckia tessellata var. tessellata Edward Lee 1935-3-10 1276 Contra Costa w watershed of Kirker Creek (Kirker Pass, Donovan Road); Kirker Pass Comment
  CHSC75115  Anagallis arvensis Roger Thom 1987-5-26 21 Contra Costa 2800 block of Buena Vista Ave. Walnut Creek. 30 Comment
  JEPS43119  Anagallis arvensis W. L. Jepson 1923-4-22 9865 Contra Costa Mt. Diablo Comment
  UC2062621  Anagallis arvensis Barbara Ertter with Joanne Kerbavaz et al. 2003-5-8 18173 Contra Costa South Gate Road on south side of Mount Diablo. Comment
  UCD164884  Anagallis arvensis Henry House 1995-5-16 1995- 11 Contra Costa About 100 m west of Walnut Blvd., ca. 1.25 km south of Marsh Creek Rd. 33 Comment
  CAS-BOT-BC45254  Ancistrocarphus filagineus Brandegee s.n. Contra Costa Antioch Comment
  JEPS12259  Anemopsis californica W. L. Jepson May 22 1891-May 23 1891 Contra Costa Mount Diablo Comment
  UC4888  Anemopsis californica W. L. Jepson May 23 1891-May 24 1891 Contra Costa near Mount Diablo Comment
  UC692069  Anemopsis californica Mary L. Bowerman 1931-5-28 903 Contra Costa Pine Canyon by Sulphur Spring (Mount Diablo); , Pine Canyon Comment
  CDA1107  Angelica californica D. G. Kelch, A. G. Murdock 2003-8-13 3 .127 Contra Costa Carquinez Strait; Vaca Canyon. Comment
  JEPS111622  Angelica californica D. G. Kelch 2004-7-9 04 .308B Contra Costa Vaca Canyon Vaca Canyon 165 Comment
  UC692259  Angelica californica Mary L. Bowerman 1932-5-6 1420 Contra Costa Mount Diablo, Mitchell Canyon Mitchell Canyon; Mount Diablo, Mitchell Canyon 228 Comment
  UC692563  Angelica californica Mary L. Bowerman 1935-6-21 3149 Contra Costa Mount Diablo, e fork of Arroyo del Cerro Arroyo del Cerro; Mount Diablo, Arroyo del Cerro 274 Comment
  UC1594182  Anthemis cotula Jerry Powell 1992-6-17 1692 Contra Costa Richmond Field Station Comment
  CAS-BOT-BC84715  Anthemis cotula E. M. Zeile 1921-8-6 1136 Contra Costa Shepherd Canon Comment
  CAS-BOT-BC26282  Antirrhinum elmeri A. D. E. Elmer 1903-6-1 4809 Contra Costa Mount Diablo Comment
  CAS-BOT-BC447664  Aphanes arvensis Mary L. Bowerman 1931-3-29 620 Contra Costa Mount Diablo, East Cave Point ridge, Comment
  UC2062618  Aphanes occidentalis Barbara Ertter with Save Mount Diablo outing 2003-5-8 18163 Contra Costa Mangini property on knoll west of Mount Zion, NW corner of Mount Diablo. Comment
  RSA135450  Apiastrum angustifolium Volney Rattan 1886-6-14 s.n. Contra Costa West slope of Mt. Diablo Comment
  CDA5335  Apium graveolens D. G. Kelch, A. G. Murdock 2004-7-9 4 .305 Contra Costa Carquinez Strait Region.; Martinez. Alhambra Creek near Strait. 0 Comment
  JEPS60419  Aquilegia W. L. Jepson 1920-9-6 9084 Contra Costa Mt. Diablo Comment
  RSA482739  Arabis breweri Mark Morris 1929-03 14914 Contra Costa Mt. Diablo. Comment
  UCSB11594  Arbutus menziesii Grah, Nancy 1962-4-20 Contra Costa 2.0 miles east of San Pablo Dam on Wildcat Canyon Road, 4 miles east of Berkeley 274 Comment
  CAS-BOT-BC407799  Arceuthobium campylopodum R. Bacigalupi 1922-9-24 81 Contra Costa Mitchell Canon, Mt. Diablo Comment
  JEPS40121  Arceuthobium campylopodum Miss Ferguson 1920-1-1 Contra Costa Donner Canyon Mt. Diablo Comment
  UC1509579  Arctostaphylos Stephen W. Edwards 1984-2-20 SW- 84 -1 Contra Costa w flank of ridge e Olinda Drive (nw of intersection of San Pablo Dam Rd and Castro Ranch Rd) Comment
  SEINET11971166  Arctostaphylos andersonii var. auriculata L. S. Rose 1934-1 24039 Contra Costa S slope of Mount Diablo, 8 mi NE of Danville Comment
  CAS-BOT-BC24112  Arctostaphylos auriculata H. E. McMinn 1923-3-6 887 Contra Costa Head Sycamore canyon Comment
  JEPS19884  Arctostaphylos auriculata W. L. Jepson 1922-5-23 9662 Contra Costa Head of Sycamore Creek Monte Diablo Comment
  JEPS38915  Arctostaphylos auriculata Mary L. Bowerman 1932-2-13 1086 Contra Costa on ridge between main forks of canyon Mount Diablo; , Alamo Canyon Comment
  NY8229  Arctostaphylos auriculata A. Eastwood 1903-2-22 3161 Contra Costa Mt. Diablo Comment
  POM131658  Arctostaphylos auriculata Alice Eastwood 1903-2-22 3161 Contra Costa Mt Diablo Comment
  RSA202870  Arctostaphylos auriculata Edward Lee 1936-1-12 1713 Contra Costa Immediately south of Nortonvillep Comment
Read comments
Aug 25 2011
  RSA388864  Arctostaphylos auriculata H. A. Stout, TC Wainwright 1980-3-27 2 Contra Costa Mallory Ranch, ca. 1 mile east of Morgan Territory Road. 609 Comment
  RSA622479  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27595 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments
Jan 30 2013
  UC1200411  Arctostaphylos auriculata Edward Lee 1936-1-12 1714 Contra Costa w-facing slope immediately s Nortonville Comment
  UC549569  Arctostaphylos auriculata J. E. Adams 1934-10-6 852 Contra Costa Rock City Mt. Diablo Comment
  UC697791  Arctostaphylos auriculata Mary L. Bowerman 1932-9-5 1547 Contra Costa near firebreak which runs s from large spur (on meridian) heading into Sycamore Canyon; Mount Diablo, Inner Black Hills Comment
  UCD162927  Arctostaphylos auriculata D. O. Burge; K. Zhukovsky 2015-6-6 1747 Contra Costa Mount Diablo. 515 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-BC23554  Arctostaphylos crustacea Neil Havlik; Walter Knight 1982-11-12 4550 Contra Costa Briones Regional Park adjacent to russell Tree Farm. 304 Comment
  CAS-BOT-BC23558  Arctostaphylos crustacea C. Hart Merriam 1919-11-2 s.n. Contra Costa Hill above Moraga Valley Comment
  CAS-BOT-BC23599  Arctostaphylos crustacea Stephen W. Edwards 1981-1-5 1001 Contra Costa Browne's Regional Park, on ridge facing Russell Tree Farm. Comment
  OBI14749  Arctostaphylos densiflora Robert F. Hoover 1962-3-23 8540 Contra Costa cultivated in Tilden Park Botanic Garden. Propagated from near Vine HIll School, Sonoma co. Comment
  CAS-BOT-BC24809  Arctostaphylos glandulosa subsp. glandulosa Paul F. Covel 1938-2-20 1113 Contra Costa Moraga Ridge above Pinehurst. Comment
  CAS-BOT-BC24850  Arctostaphylos glandulosa subsp. glandulosa H. E. McMinn 1923-3-6 875 Contra Costa Contra Costa Co. Comment
  RSA367269  Arctostaphylos glandulosa subsp. glandulosa H. E. McMinn 1923-3-6 875 a Contra Costa Mt. Diablo. Comment
  CAS-BOT-BC24655  Arctostaphylos glauca Mary L. Bowerman 1933-3-11 1748 Contra Costa Mount Diablo, Fossil Ridge, outer s. face: In gully nw. of South Gate. Comment
  CAS-BOT-BC24660  Arctostaphylos glauca John Thomas Howell 1926-3-7 1674 Contra Costa Mt. Diablo. Comment
  RSA0046799  Arctostaphylos glauca Mary L. Bowerman 1933-3-11 1748 Contra Costa Fossil Ridge, outer south face. In gully northwest of South Gate. Comment
  RSA632819  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27583 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  RSA632823  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27581 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  RSA632827  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27590 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  JEPS124461  Arctostaphylos manzanita subsp. laevigata Daniel Slakey with CNPS Volunteers 2015-6-29 137 Contra Costa Wall Point Rd, along a roughly 1 km stretch of road just west of Wall Point. Comment
  RSA164649  Arctostaphylos manzanita subsp. laevigata Percy C. Everett 1963-11-19 24499 Contra Costa Mt Diablo. 457 Comment
  RSA257622  Arctostaphylos manzanita subsp. laevigata Gary D. Wallace 1975-8-26 1501 Contra Costa Mt. Diablo St. Pk., E. of Danville, out trail from Curry Point. Comment
  RSA44373  Arctostaphylos manzanita subsp. laevigata L. S. Rose 1949-3-24 49014 Contra Costa W slope of Mt Diablo, near Rock City. 609 Comment
  UC1200412  Arctostaphylos manzanita subsp. laevigata Edward Lee 1936-1-12 1712 Contra Costa canyon bottom immediately s Nortonville Comment
  UC549750  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 689 Contra Costa Mt. Diablo Comment
  UCD51723  Arctostaphylos manzanita subsp. laevigata H. A. Jensen 1938-10-27 451 Contra Costa Head of Curry Canyon. 518 Comment
  CAS-BOT-BC24381  Arctostaphylos manzanita subsp. manzanita Walter Knight; Irja Knight 1980-3-16 3713 Contra Costa Opposite 5996 Skyline Drive, El Sobrante. Comment
  CAS-BOT-BC24385  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1932-1-23 1076 Contra Costa Mount Diablo, Sycamore canyon, east fork: near canyon bottom. Comment
  CAS-BOT-BC24393  Arctostaphylos manzanita subsp. manzanita Walter Knight 1979-5-31 3376 Contra Costa Morgan Territory Regional Land Bank. Comment
  CAS-BOT-BC24396  Arctostaphylos manzanita subsp. manzanita Walter Knight; Irja Knight; James B. Roof 1967-4-2 2061 Contra Costa Nortonville. Comment
  SBBG114892  Arctostaphylos pallida C. Bornstein 1999-3-20 Contra Costa Sobrante Ridge Regional Preserve 243 Comment
  POM127991  Arctostaphylos stanfordiana subsp. stanfordiana R. C. Bacigalupi 1924-2-17 s.n. Contra Costa Lower slopes of Mt. Diablo, on old wagon road to summit from Diablo Country Club. (Black Hills). 457 Comment
  UC2070442  Arctostaphylos tomentosa Barbara Ertter with Kevin Hintsa et al. 2003-4-20 18160 Contra Costa Wall Point Road east of Emmons Canyon Road, west side of Mount Diablo. Comment
  JEPS42608  Arctostaphylos tomentosa subsp. crustacea W. L. Jepson 1944-8-5 27546 Contra Costa Moraga Ridge Oakland Hills Comment
  JEPS48825  Arctostaphylos tomentosa subsp. crustacea H. M. Wheeler 1944-1-16 27508 Contra Costa Moraga Ridge Oakland Hills Comment
  UC549410  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 622 Contra Costa Moraga Ridge Comment
  UC549463  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 630 Contra Costa Moraga Ridge Comment
  UC549475  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-19 680 Contra Costa Rock City Mount Diablo Comment
  UC692223  Arctostaphylos tomentosa subsp. crustacea Mary L. Bowerman 1932-3-20 1123 Contra Costa toward top middle ridge (ne fork of canyon); Mt. Diablo, Sycamore Canyon Comment
  RSA0029784  Arctostaphylos tomentosa subsp. rosei Barbara Ertter, L. Vorobik 2000-1-9 16888 Contra Costa Las Trampas Regional Wilderness in East Bay Hills west of Danville. Comment
  CDA24528  Argemone munita subsp. rotundata Morgan 1958-5-16 Contra Costa Morgan Territorial Road, Clayton. 0 Comment
  SJSU6159  Aristolochia californica C. O. Dudley 1966-5-1 106 Contra Costa Reliez Valley, Briones Hills N of Lafayette 152 Comment
  UCSB24029  Aristolochia californica Olson, Glen 1968-3-21 Contra Costa Fifty yards on the north side of School Street, 0.4 mile east of its junction with Moraga Road in Lafayette 106 Comment
  RSA94492  Arnica discoidea F. W. Peirson 1923-7-1 3919 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC90121  Artemisia biennis Evelina Cannon 1896-10-30 s.n. Contra Costa Giant Comment
  JEPS36980  Artemisia californica W. L. Jepson 1898-10-18 Contra Costa Mount Diablo Comment
  UC1584696  Artemisia douglasiana Jerry Powell 1990-8-29 1591 Contra Costa Antioch National Wildlife Refuge Comment
  UC521721  Artemisia douglasiana Joseph Andorfer Ewan 1933-10-15 8033 Contra Costa grassy slope above Indian Ceremonial Spr.; Mt. Diablo Comment
  UC691721  Artemisia douglasiana Mary L. Bowerman 1930-8-24 414 Contra Costa Mitchell Canyon Mount Diablo, Mitchell Canyon Comment
  CAS-BOT-BC90299  Artemisia douglasiana John Thomas Howell; Gordon H. True 1972-6-29 48945 Contra Costa Low places along Byron Hot Springs Road where water has stood, southeast of Byron Comment
  UC1051127  Arum italicum N. Floy Bracelin 1944-9-24 2585 Contra Costa the Garden of Anson and Anita Blake Berkeley Comment
  CAS-BOT-BC400500  Asarum caudatum John Thomas Howell 1925-9-12 1439 Contra Costa San Leandro Canon [Canyon], Oakland Hills Comment
  HSC24607  Asarum caudatum D. A. Shally 1965-4-18 41 Contra Costa Canyon, 1 mi. N of Canyon Store Comment
  UC22951  Asclepias californica State Survey 1890-1 1123 Contra Costa region Mt. Diablo Comment
  CHSC23359  Asclepias fascicularis Willis Ball 1975-6-1 533 Contra Costa Contra Loma Regional Park. In area #1 ca. 75 yds sw of main restroom facility at s end of reservoir. 45 Comment
  UC1123545  Asclepias fascicularis H. S. Yates 1934-9-2 4067 Contra Costa 1 mi sw Mt. Diablo; Mt. Diablo Quadrangle 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
  RSA0029364  Asclepias fascicularis Barbara Ertter, Mary L. Bowerman, Lisa Schultheis 1996-7-5 14916 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  UC691839  Asclepias fascicularis Mary L. Bowerman 1935-7-22 3194 Contra Costa South Road, top Mount Diablo 640 Comment
  UC1618203  Asparagus asparagoides Barbara Ertter 1991-1-21 9715 Contra Costa ne corner Point Isabel Regional Shoreline (El Cerrito, sw corner of Contra Costa County); El Cerrito Comment
  UC13388  Astragalus asymmetricus F. T. Bioletti 1892-1 Contra Costa Byron Comment
  CAS-BOT-BC177886  Astragalus didymocarpus var. didymocarpus 1884-5-1 s.n. Contra Costa antioch Comment
  CAS-BOT-BC178475  Astragalus gambelianus T. S. Brandegee 1886-5-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC193335  Astragalus tener var. tener Alice Eastwood 1914-3-14 3818 Contra Costa Byron Springs Comment
  CAS-BOT-BC66048  Athyrium filix-femina var. cyclosorum M. Beene 1981-4-11 011 Contra Costa Lafayette Res. eastern side of park ca. 100 m W. from main path Comment
  UC10231  Athysanus pusillus T. S. Brandegee Contra Costa Antioch Comment
  UC1301000  Athysanus pusillus Helen K. Sharsmith 1963-3-3 5191 Contra Costa e of St. Mary's College (near Moraga, Las Trampas Canyon); San Francisco Bay Region, Las Trampas Canyon 259 Comment
  RSA452691  Atriplex argentea E. E. Stanford 1930-08 1870 Contra Costa near Old River Comment
  RSA452692  Atriplex argentea L. S. Rose 1932-10-2 32660 Contra Costa Byron. Comment
  CHSC99191  Atriplex argentea var. mohavensis John Dittes 2006-10-26 1414 Contra Costa San Joaquin Valley (foothills near nw edge); ~ 2.0 air-mile south of Marsh Creek Reservoir Gauging Station, 1.6 air-mile southwest of intersection of Camino Diablo and Vasco Road; Contra Costa Water District's Los Vaqueros Watershed Mitigation Project Area. 67 Comment
  UC219420  Atriplex argentea var. mohavensis H. M. Hall 1922-5-6 11803 Contra Costa near Byron (alkaline fields); near Byron Comment
  RSA0036964  Atriplex coronata D. G. Kelch, Mike Perlmutter 2011-9-23 11 .760 Contra Costa Entry to Discovery Bay. 2 Comment
  CAS-BOT-BC168541  Atriplex coronata R. E. Frenkel 1964-7-10 648 Contra Costa On Balfour Road, 0.2 miles west of Bixler Road 6 Comment
  RSA244713  Atriplex fruticulosa J. T. Howell, G. True 1972-6-29 48917 Contra Costa On Byron Hot Springs Road SE of Byron. Comment
  JEPS111801  Atriplex semibaccata D. G. Kelch 2004-7-9 04 .300 Contra Costa Port Costa - Shore Past Costa Shore 2 Comment
  SEINET5345887  Atriplex semibaccata H. Yates 1934-9-2 4064 Contra Costa 1 mile northeast of Danville 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
  CDA19825  Avena fatua P. Akers 2002-5-11 s.n.- 2 a Contra Costa Northern California; Mt Diablo Rd. 205 Comment
  RSA129571  Avena fatua R. W. Lundh 1933-3-25 218 Contra Costa 1 mi. W. & 1/2 N. of Lafayette Acalanes; Concord 213 Comment
  UC606755  Avena fatua Edward Lee 1936-4-19 1996 Contra Costa Red Rock San Francisco Bay (island summit) Comment
  CAS-BOT-BC145749  Avena sativa G. D. Barbe 1983-5-22 4081 Contra Costa On hillside along fire road north of Juniper Campground, Mount Diablo State Park. 877 Comment
  SEINET8718193 Image available Avena sativa Laura Zeller 1965-1 81 Contra Costa Just E of the University of California Botanical Garden. Comment
  UC2028018  Azolla filiculoides Barbara Ertter 1998-1-4 15889 Contra Costa South end of Diablo Foothills Regional Park southeast of Walnut Creek, Hazzard Pond north of Livorna Staging Area. Comment
  CAS-BOT-BC98763  Baccharis douglasii Mary L. Bowerman 1942-10-4 3852 Contra Costa Mount Diablo, Russelman Park road 289 Comment
  CAS-BOT-BC98766  Baccharis douglasii Walter Knight; I. Knight; S. Rae; B. Doyle; J. T. Howell; E. McClintock 1978-9-5 3209 Contra Costa Browns Island, near Sandy Knoll Comment
  UC697205  Baccharis glutinosa Mary L. Bowerman 1938-9-17 3719 Contra Costa Willow Spring Comment
  CAS-BOT-BC98611  Baccharis pilularis Walter Knight; I. Knight; S. Rae; B. Doyle; J. T. Howell; E. McClintock 1978-9-5 3208 Contra Costa Browns Island Comment
  UCD73335  Baccharis salicifolia Chuck Hughes 2008-4-22 26 Contra Costa Marsh Creek at County Jail on Marsh Creek Road. 179 Comment
  CAS-BOT-BC16380  Barbarea orthoceras Alice Eastwood 1915-5-30 4495 Contra Costa Mount Diablo. Comment
  UC1618272  Bassia hyssopifolia Barbara Ertter, B. Olson, D. Lake, L. Hosley and A. Youngson 1991-10-20 10885 Contra Costa just w Antioch marina (Dow Wetlands Preserve); Dow Wetlands Preserve Comment
  SEINET13390640  Bellardia trixago C. C. Hall 1911-5-20 8835 Contra Costa Near Concord. 100 Comment
  UC1584667  Bellardia trixago Jerry Powell 1987-7-14 1500 Contra Costa Point Molate Beach Comment
  SD30222  Bellardia trixago P. O. Schallert 1943-4-27 Contra Costa 1 mile east of Martinez, in meadow Comment
  CDA3008  Beta vulgaris C. Lasser 1960-4-19 Contra Costa State Highway, right of way between Concord Avenue and Grayson Creek. 0 Comment
  CDA3009  Beta vulgaris C. Lasser 1960-4-19 Contra Costa State Highway, right of way between Concord Avenue and Grayson Creek. 0 Comment
  UCD158710  Beta vulgaris subsp. maritima James A. Neilson Jr. 1972-11-2 3613 a Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 1 Comment
  CAS-BOT-BC102032  Bidens laevis Walter Knight; Irja Knight; J. T. Howell; E. McClintock; et al. 1978-9-5 3242 Contra Costa Browns Island. Yucca Landing Comment
  NY31019  Blennosperma californicum R. F. Hoover 1938-2-21 2750 Contra Costa Byron Hot Springs Comment
  NY30996  Blennosperma californicum R. C. F. Bacigalupi 1957-3-27 5761 Contra Costa At junction of Lone Tree Way and Hillcrest Ave. (rd.), about 0.5 mile west of Lone Tree School 39.3 Comment
  NY31018  Blennosperma californicum L. S. Rose 1941-3-13 41035 Contra Costa 3 miles south of Byron 7.6 Comment
  POM203483  Blennosperma nanum L. S. Rose 1933-3-10 33008 Contra Costa Marsh Creek. Comment
  RSA114082  Blennosperma nanum H. K. Sharsmith 1954-3-24 4409 Contra Costa Hillslope above old Nortonville Mines, near Kirker Pass road between Clayton and Antioch. 305 Comment
  RSA517739  Blennosperma nanum Donald G. Nelson 1937-3-30 459 Contra Costa Marsh Creek Highway, about halfway between Clayton and Bryon. Comment
  JEPS18804  Blennosperma nanum var. nanum Lauramay Tinsley 1927-1-1 Contra Costa Mt. Diablo Comment
  UC1540459  Blennosperma nanum var. nanum Annetta Carter 1937-3-28 1225 Contra Costa 15 mi e, along Marsh Creek Road Concord 152 Comment
  UC201362  Blennosperma nanum var. nanum Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  UC565479  Blennosperma nanum var. nanum H. L. Mason 1929-3-15 5045 Contra Costa just s of Nortonville Comment
  UC579840  Blennosperma nanum var. nanum Annetta Carter 1937-3-7 1223 Contra Costa one mile e Danville; Sycamore Valley Comment
  UC894085  Blennosperma nanum var. nanum Lewis S. Rose 1941-3-13 41035 Contra Costa 3 mi s of, Byron 7 Comment
  JEPS18819  Blepharizonia laxa R. F. Hoover 1937-9-2 2710 Contra Costa 1 mi s of Pittsburg Comment
  CAS-BOT-BC100335  Blepharizonia plumosa R. F. Hoover 1937-9-2 2708 Contra Costa Walnut Creek Comment
  JEPS105485  Blepharizonia plumosa Eva Buxton 1994-8-10 1099 Contra Costa Cowell Ranch, ca 1/2 mile east and 1 mile south of Marsh Creek Reservoir Comment
  JEPS18823  Blepharizonia plumosa R. F. Hoover 1937-8-31 2704 Contra Costa Pittsburg Comment
  UC2029131  Blepharizonia plumosa Barbara Ertter 2003-7-6 18242 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, south end of Carbondale Trail. Comment
  UCD77424  Blepharizonia plumosa Robert E. Preston 2001-10-7 1777 Contra Costa Black Diamond Mines Regional Park, on w side of Stewartsville Trail, 0.75 mi s of Parking lot at Frederickson Lane trailhead. 152 Comment
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Mar 14 2018
  CAS-BOT-BC100332  Blepharizonia plumosa H. M. Hall 1916-8-17 10275 Contra Costa Los Medanos, Suisan Bay Comment
  RSA0008357  Blepharizonia plumosa Barbara Ertter, Brad Olson, Dianne Lake, Seth Adams, et al. 1994-9-11 13080 Contra Costa Chaparral Springs addition to Mt. Diablo State Park, north side of Marsh Creek Road at high point southeast of Clayton. Comment
  CAS-BOT-BC478856  Bloomeria crocea var. aurea W. H. Brewer 1862-6-29 1291 Contra Costa Pacheco Pass near Camp 77 Comment
  SEINET183705  Boechera breweri L. Constance, J. L. Morrison 1938-4-5 2192 Contra Costa Near Mitchell Canyon on west slope of Mount Diablo. 610 Comment
  SEINET3132246  Boechera breweri subsp. breweri M. S. Baker 1904-6-24 sn Contra Costa Near summit of Mt. Diablo, along Mitchel Canyon Trail. Comment
  CAS-BOT-BC31330  Bolboschoenus maritimus John Thomas Howell 1978-9-5 53356 Contra Costa Pittsburg Marina. Comment
  SD134060  Bolboschoenus maritimus subsp. paludosus Walter Knight, Joanne Dean 1978-8-14 3161 Contra Costa Browns Island. Comment
  UC1950424  Bolboschoenus maritimus subsp. paludosus Barbara Ertter 1990-9-10 9640 Contra Costa Briones Regional Park, Briones Hills S of Martinez, at margin of main Sindicich Lagoon Comment
  CDA42003  Boschniakia strobilacea B. Hosman 1974-6-2 s.n. Contra Costa in the native area 0 Comment
  CAS-BOT-BC95326  Bowlesia incana Mary L. Bowerman 1931-3-21 591 Contra Costa Sycamore Canyon, Mount Diablo Comment
  JEPS111627  Bowlesia incana D. G. Kelch 2005-4-15 05 .139 Contra Costa Rodeo Creek 100 Comment
  UC566857  Bowlesia incana H. L. Mason 1928-4-29 4419 Contra Costa Mount Diablo, Sycamore Canyon Sycamore Canyon; Mount Diablo, Sycamore Canyon Comment
  CDA23561  Brassica rapa D. G. Kelch 2008-3-3 8 .029 Contra Costa Carquinez Strait; Crockett. Under Zampa (Carquinez) Bridge. 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
  UC34624  Brickellia californica V. King Chesnut 1887-9-11 Contra Costa Mt. Diablo Comment
  UC691193  Briza minor Mary L. Bowerman 1931-4-11 686 Contra Costa Pine Canyon Mount Diablo (lower end) 121 Comment
  UC1555378  Brodiaea elegans subsp. elegans Jerry Powell 1988-5-18 1538 Contra Costa meadow west Richmond, Point Molate Comment
  UC1613947  Brodiaea elegans subsp. elegans Charles M. Belshaw 1935-6-24 1028 Contra Costa Sobrante Hills 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
  CHSC75136  Bromus carinatus Roger Thom 1987-4-21 3 Contra Costa 3300 block Johnson Rd. Lafayette. 152 Comment
  POM300680  Bromus carinatus Mary L. Bowerman 1935-5-16 3010 Contra Costa Behind Gabriel-Hinks' (east side of North Peak) 290 Comment
  UCD58127  Bromus carinatus A. A. Beetle 1942-3-22 2931 Contra Costa Brooks Island in San Francisco Bay. Near Richmond. Comment
  SEINET10520207  Bromus carinatus Alan A. Beetle 1942-3-22 Beetle 2931 Contra Costa Brooks Island, San Francisco Bay, near Richmond. Comment
  UC53787  Bromus carinatus var. carinatus J. Burtt Davy Apr 1897 Contra Costa Point Isabel; Western Middle California, Point Isabel Comment
  UC606737  Bromus carinatus var. carinatus Edward Lee 1936-4-19 1958 Contra Costa San Francisco Bay, Red Rock Red Rock; San Francisco Bay, Red Rock Comment
  CHSC116648  Bromus diandrus Lowell Ahart; Josephine Guardino 2016-4-19 20790 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
  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
  UC691228  Bromus diandrus Mary L. Bowerman 1935-5-3 2954 Contra Costa below Garden-of-the-Jungle Gods (Mount Diablo, Fossil Ridge); Mount Diablo, Fossil Ridge Comment
  UC692289  Bromus diandrus Mary L. Bowerman 1935-5-25 3068 Contra Costa Mount Diablo, s of summit Mount Diablo 1066 Comment
  UCD84945  Bromus diandrus Chuck Hughes 2010-3-29 217 Contra Costa About 0.7 mile south of Vasco Road. 238 Comment
  CAS-BOT-BC156068  Bromus diandrus Mary L. Bowerman 1935-5-25 3068 Contra Costa South of the summit and east of the haripin turn on the highway. 1066 Comment
  UCD58767  Bromus hordeaceus L. S. Smith 1914-5-9 s.n. Contra Costa Mt. Diablo. West slope. Comment
  UCD58920  Bromus laevipes P. B. Kennedy 1916-5-1 s.n. Contra Costa Pinehurst. Comment
  CAS-BOT-BC162453  Bromus laevipes Mary L. Bowerman 1935-5-22 3045 Contra Costa Mount Diablo. Eagel Point ridge, canyon at north end which heads into saddle west of Twin Peaks. 350 Comment
  SEINET10835104  Bromus macrostachys Davis 1941-1 Davis B 139 Contra Costa Briones Hills. Cultivated, greenhouse. (See Ph.D. thesis of P.F. Knowles, 1942.) Comment
  CAS-BOT-BC162357  Bromus madritensis Mary L. Bowerman 1935-5-16 2991 Contra Costa Mount Diablo. Russelman Park, at end of road. Comment
  UC691208  Bromus madritensis subsp. madritensis M. L. Bowerman 1932-4-27 1382 Contra Costa S face, canyon W of Riggs Canyon Oyster ridge 335 Comment
  UC692333  Bromus madritensis subsp. madritensis Mary L. Bowerman 1935-5-22 3037 Contra Costa w of Twin Peaks (n end of Eagle Point Ridge, Mount Diablo); Mount Diablo, Eagle Point Ridge 304 Comment
  UC37706  Bromus madritensis subsp. rubens J. Burtt Davy 1895-4-7 890 Contra Costa Antioch Comment
  UC692342  Bromus madritensis subsp. rubens Mary L. Bowerman 1931-4-18 731 Contra Costa Mount Diablo, Sycamore Canyon Sycamore Canyon; Mount Diablo, Sycamore Canyon 365 Comment
  UC692347  Bromus madritensis subsp. rubens Mary L. Bowerman 1932-4-27 1385 Contra Costa canyon w of Riggs Canyon (Mount Diablo, Oyster Ridge); Mount Diablo, Oyster Ridge 335 Comment
  POM300682  Bromus rubens Mary L. Bowerman 1932-4-27 1385 Contra Costa Oyster Ridge, south face, canyon west of Riggs Canyon; Chaparral-patch in Fork of canyon 335 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
  CAS-BOT-BC161947  Bromus rubens Mary L. Bowerman 1933-3-18 1751 Contra Costa Mount Diablo below the chaparral belt, a little east of the meridian. 548 Comment
  UC2028467  Bromus tectorum Barbara Ertter 1997-8-24 15775 Contra Costa Mount Diablo, around summit Comment
  JEPS84819  Calamagrostis rubescens J. Stratford 1981-6-8 Contra Costa Huckleberry Trail Huckleberry Botanic Regional Preserve Comment
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Aug 20 2008
  UCD57736  Calamagrostis rubescens G. L. Stebbins Jr. 1942-8-16 3297 Contra Costa 3 miles north of Berkeley, Wildcat Canyon, opposite army camp. Comment
  CAS-BOT-BC233993  Calandrinia breweri R. F. Hoover 1939-4-13 4019 Contra Costa Head of Markley Canyon (west branch) Comment
  CAS-BOT-BC438374  Calandrinia ciliata John Thomas Howell 1940-4-21 15407 Contra Costa Pine Canyon, Mt. Diablo Comment
  CDA23935  Calandrinia ciliata D. G. Kelch 2007-4-1 7 .11 Contra Costa Carquinez Strait; Pt. Pinole. Comment
  JEPS68972  Calandrinia ciliata Edward Lee 1935-3-29 1306 Contra Costa Marsh Creek Rd 1.2 mi e Clayton (n of Mt. Diablo) 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
  JEPS48655  Calandrinia ciliata Elsa Kraeger 1926-5-7 Contra Costa near Toll Gate (road to Mt. Diablo) Comment
  JEPS108319  Calendula arvensis David Gowen 2005-2-23 166 Contra Costa Mt. Diablo State Park. Juniper Trail just south of Silver Spring. Comment
  UC1795791  Callitriche heterophylla var. bolanderi Barbara Ertter, Mary Bowerman et al. 1995-5-7 14034 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, in water of pond west of road in grassy flat. Comment
  UC2031431  Callitriche marginata Barbara Ertter with David Gowen 2006-6-6 18677 Contra Costa Upper San Leandro Reservoir Watershed (EBMUD) south Moraga Comment
  CAS-BOT-BC132488  Calochortus pulchellus A. D. E. Elmer 1903-6-1 4631 Contra Costa Mount Diablo Comment
  CAS-BOT-BC132502  Calochortus pulchellus L. R. Abrams 1921-5-25 8053 Contra Costa 4 1/2 mi from summit, Mt. Diablo Comment
  JEPS61708  Calochortus pulchellus W. L. Jepson 1923-6-10 10001 Contra Costa Upper Marsh Creek Mt. Diablo Comment
  LA22451  Calochortus pulchellus Carl Purdy; 1899-5-15 sn Contra Costa Mt. Diablo Comment
  POM170033  Calochortus pulchellus H. M. Hall 1910-5-30 10132 Contra Costa Mt. Diablo, north slope near Pine Canyon 366 Comment
  SBBG57749  Calochortus pulchellus M. N. Ackley -Apr-1930 641 Contra Costa Mt Diablo Comment
  UC672145  Calochortus pulchellus Herbert L. Mason 1928-4-29 4420 Contra Costa Sycamore Canyon Mount Diablo Comment
  CAS-BOT-BC132505  Calochortus pulchellus Paul F. Covel 1936-5-17 123 Contra Costa Mt. Diablo, (North Pk trail) Comment
  UC2028221  Calochortus pulchellus Barbara Ertter with Christopher Baysdorfer 1998-5-10 16125 Contra Costa West side Lime Ridge Open Space northwest of Mount Diablo. Comment
  UC1779714  Calochortus umbellatus Rudolf Schmid 1997-4-4 1997 -1 Contra Costa Hillside Natural Area, El Cerrito; SW of Kent Dr. - Regency Ct. entrance, N side of juncttion of the two main fire roads. 144 Comment
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Apr 2 2012
  CAS-BOT-BC132536  Calochortus umbellatus Rudolf Schmid 1997-4-8 1997 -2 Contra Costa Hillside Natural Area, El Cerrito; sw. of Kent Dr.-Regency Ct. entrance, n. side of junction of the two main fire roads 145 Comment
  RSA68630  Calochortus venustus Frank W. Peirson 1923-7-1 3682 Contra Costa Mt. Diablo. Comment
  UC1794956  Calystegia R. K. Brummitt and B. Ertter 1998-5-6 19794 Contra Costa Point San Pablo, W of Richmond. Comment
  UC691903  Calystegia malacophylla subsp. pedicellata Mary L. Bowerman 1935-5-25 3072 Contra Costa s summit (Mount Diablo); Mount Diablo 1082 Comment
  UC2032816  Calystegia purpurata Doran, Andrew Scott 2012-3-20 686 Contra Costa North end of Brooks Island along ridge, cleared area northwest of caretakers residence. Comment
  JEPS111815  Calystegia sepium subsp. binghamiae D. G. Kelch 2003-8-13 03 .117 Contra Costa Martinez Marsh 1 Comment
  CDA15226  Calystegia sepium subsp. limnophila G. F. Hrusa, D. Crowe 1998-5-8 14355 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg. Comment
  CAS-BOT-BC224336  Calystegia subacaulis subsp. subacaulis R. K. Brummitt; B. Ertter 1998-5-13 19841 Contra Costa S of Antioch, Black Diamond Mine Regional Park 400 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
  UC107666  Camissonia campestris subsp. campestris Katharine Curran May 1883 Contra Costa Antioch Comment
  RSA41307  Camissonia ovata Robert F. Hoover 1938-2-21 2755 Contra Costa Point Richmond. Comment
  UC20492  Camissoniopsis intermedia F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  UC635408  Camissoniopsis micrantha H. L. Mason 1932-3-20 6850 Contra Costa sand hills near Antioch 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
  SEINET10461961  Campanula exigua Edward L. Greene 1892-6-20 Greene s.n. Contra Costa Mount Diablo Comment
  UC2029116  Campanula griffinii Barbara Ertter with D. Gowen, J. Ginochio, M. Park, S. Matson, A. Moore, S. D'Alcamo, J. Greenhouse, K. Kersh and J. Gawthrup 2005-4-8 18570 Contra Costa Long Ridge on west flank of Mt. Diablo, springs and pond on Ginochio property near park boundary. Comment
  UC691065  Capsella bursa-pastoris Mary L. Bowerman 1931-2-8 505 Contra Costa Mount Diablo, West Road(=North Rd), a few mi from entrance Mount Diablo 396 Comment
  UC1126894  Cardamine californica R. C. Wilson 1935-3-27 146 Contra Costa Oyster Pt. Mt. Diablo Quad., Oyster Pt. Comment
  UC480597  Cardamine californica Carl Meyer 1928-2-22 289 Contra Costa Mt. Diablo Comment
  UC665667  Cardamine californica Annetta Carter, Helen Sharsmith 1940-3-17 1498 Contra Costa near Stege Railroad Station two mi se Richmond; se of Richmond, near Stege Railroad Station 7 Comment
  RSA272927  Cardamine californica var. integrifolia Lyman Benson 1935-3-16 6263 Contra Costa Mt. Diablo, Watershed: Walnut Creek; Mountain Range: Mt. Diablo. 915 Comment
  UC1795657  Cardamine hirsuta Barbara Ertter, Gary Schoolcraft 1996-4-7 14576 Contra Costa Molate Beach Park on San Francisco Bay north of San Rafael Bridge; south end of parking area, in partial shade of planted shrub. Comment
  UC1126888  Cardamine oligosperma H. S. Yates 1936-3-14 5361 Contra Costa Marsh Creek Mount Diablo Quad., Marsh Creek Comment
  UC1795823  Cardamine oligosperma Barbara Ertter, Gary Schoolcraft, Tony Morosco 1996-4-6 14564 Contra Costa Black Hawk Ridge Rd. along East Fork Sycamore Cr in Mt Diablo State Park, shaded roadside bank on north-facing slope,oak woods. Comment
  UC2028048  Cardamine oligosperma Barbara Ertter 1998-2-15 15914 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, outcrops on north side of Joaquin Ridge south of Indian Creek, +/- wooded. Comment
  CDA40558  Cardaria chalepensis V. Guise & B. Slate 2014-4-3 PDR# 070 P06223872 Contra Costa Concord; end of Crystal Ranch Road, Save Mt. Diablo property. 0 Comment
  CAS-BOT-BC281737  Carduus pycnocephalus John Thomas Howell 1933-5-14 11246 Contra Costa Hills E of St Mary's College Comment
  CDA28828  Carex barbarae D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 07 .251-B Contra Costa CA Delta; Along the old San Joaquin River Channel, S of Clifton Court Forebay and SE of Byron. Comment
  UC70619  Carex barbarae Jos. Burtt Davy 1899-4-19 7846 Contra Costa Glorietta inner coast range mountains Comment
  CAS-BOT-BC19209  Carex barbarae L. R. Abrams 1916-7-30 5723 Contra Costa Mt. Diable near the lake. Comment
  CAS-BOT-BC19210  Carex barbarae Mary L. Bowerman 1935-9-13 3344 Contra Costa Mount Diablo. Frog Pond. At head of Forg Pond spring. Comment
  UC593504  Carex densa G. L. Stebbins Jr. 1936-5-9 1554 Contra Costa e side of Wildcat Canyon Berkeley Hills, Wildcat Canyon Comment
  JEPS105721  Carex densa David Gowen 2004-9-13 161 Contra Costa Mt. Diablo State Park. Johnny Walker Spring, which is ca. .2 mile above the junction of Angel Kerley Rd. (fire trail) and North Gate Rd., approx. 2200' elev. Comment
  UC1026409  Carex globosa John Thomas Howell 1953-3-15 28923 Contra Costa Rock City Mt. Diablo Comment
  SEINET10584363  Carex nudata M. Bowerman Bowerman s.n. Contra Costa Mount Diablo. Sycamore Creek Canyon. Forming clumps in rocky streambed. 244 Comment
  UC2031466  Carex praegracilis Barbara Ertter with Brad Olson 1991-11-10 10886 Contra Costa Point San Pablo in extreme west of Richmond Comment
  UC2028413  Carex praegracilis Barbara Ertter 2001-5-10 17638 Contra Costa South side Mount Diablo, Suphur Spring tributary of west fork Sycamore Creek, ca. 1/4 mile from Madrone Canyon Trail Comment
  CAS-BOT-BC117547  Carex serratodens Lewis Samuel Rose 1935-5-16 35163 Contra Costa Mt. Diablo. Comment
  POM222732  Carex serratodens L. S. Rose 1935-5-16 35163 Contra Costa Mt. Diablo. Comment
  UC2029197  Carex serratodens Barbara Ertter with Michelle Lee et al. 2002-6-29 17964 Contra Costa Lower Curry Creek on east side of Mount Diablo, private property just above Morgan Territory Comment
  UC691959  Carex serratodens Mary L. Bowerman 1933-4-15 1856 Contra Costa canyon s Arroyo del Cerro (hollow in gully near main stream); Mount Diablo Comment
  UC692012  Carex serratodens Mary L. Bowerman 1935-5-8 2969 Contra Costa 2 mi <West> entrance (West road, gully w of chaparral); Mount Diablo 213 Comment
  UC2028573  Carex serratodens Barbara Ertter with Stu Garrett 1997-3-29 15537 Contra Costa West side Mount Diablo, spring at north junction of Mothers Trail and Burma Road. Comment
  UC1618162  Carex subbracteata Barbara Ertter, Chris Thayer 1993-5-7 11694 Contra Costa Hopkins Spring 1/2 mile SE of Inspiration Point on Wild Canyon Road, East Bay Municipal Utilities District land east of Tilden Park 304 Comment
  UC2028500  Carex subbracteata Barbara Ertter 1999-3-21 16491 Contra Costa NW corner of Miller Knox Regional Shoreline, Protero Hills SW of Richmond Comment
  CDA20549  Carthamus creticus R. Fonseca 2005-6-2 PDR 1327561 Contra Costa San Francisco Bay Area; 1171 Chistie Rd, Martinez. 0 Comment
  JEPS23818  Castilleja affinis subsp. affinis G. Thomas Robbins 1959-4-18 3990 Contra Costa about 0.25 mi e and above Pt. San Pablo; Richmond 30 Comment
  JEPS41055  Castilleja affinis subsp. affinis Rimo Bacigalupi, and L. R. Heckard 1965-5-11 9080 Contra Costa sw of Richmond (Brooks Island); San Francisco Bay, Brooks Island 30 Comment
  UC1039781  Castilleja affinis subsp. affinis H. L. Mason 1928-4-29 4438 Contra Costa Mount Diablo Comment
  UC64217  Castilleja affinis subsp. affinis H. M. Hall 1900-3-23 Contra Costa San Pablo Creek; San Francisco Bay Region Comment
  UC2027927  Castilleja affinis subsp. affinis Barbara Ertter with Linda Vorobik 2001-3-24 17570 Contra Costa Lime Ridge Open Space east of Walnut Creek, eastern edge overlooking Crystal Springs subdivision. Comment
  UC691580  Castilleja attenuata Mary L. Bowerman 1932-4-9 1333 Contra Costa from near Rock City ridge to Wall Point; Mount Diablo Comment
  UC1952816  Castilleja densiflora Barbara Ertter 2010-5-12 19831 Contra Costa Miller Knox Regional Shoreline at south edge of Point Richmond; along West Ridge Trail 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
  CDA41325  Castilleja exserta subsp. exserta D. G. Kelch 2005-5-13 5 .239 Contra Costa Carquinez Strait Region; Martinez. South of oil refinery along railroad tracks in fragment of habitat. Comment
  JEPS15210  Castilleja exserta subsp. exserta C. M. Belshaw 1936-5-9 2082 Contra Costa 0.5 mi n Nortinville; Mt. Diablo Quad. 274 Comment
  JEPS15212  Castilleja exserta subsp. exserta C. M. Belshaw 1936-5-11 2096 Contra Costa 5.25 mi e Danville; Mt. Diablo 289 Comment
  UC1301202  Castilleja exserta subsp. exserta Helen K. Sharsmith 1963-4-7 5289 Contra Costa w of Antioch (e side of Kirker Pass road); San Francisco Bay Region 152 Comment
  JEPS100148  Castilleja foliolosa G. Smick 2003-2-20 GAS 48 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1081509  Castilleja foliolosa H. L. Mason 1928-3-4 4169 Contra Costa Shell Ridge Comment
  UC1377744  Castilleja foliolosa W. J. Dress 1951-3-16 3054 Contra Costa about 1 mi e Berkeley (along Fish Ranch Road) Comment
  RSA0068053  Castilleja foliolosa Katie Gallagher, Nick Jensen 2014-4-26 197 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  SEINET3839756  Castilleja rubicundula subsp. lithospermoides Unknown 1996-4-26 Contra Costa Franklin Canyon Road near the junction with McEwan Road in grassland Comment
  UC64223  Castilleja subinclusa subsp. franciscana H. M. Hall 1901-3-17 Contra Costa Point Richmond; San Francisco Bay Region Comment
  JEPS14828  Castilleja wightii Rimo Bacigalupi with L. R. Heckard 1956-7-17 5733 Contra Costa about 1.25 mi n Briones Valley School (at n base of grade on Hampton Road, grade at Bear Creek Road to Pinole Valley drainage) 182 Comment
  CAS-BOT-BC41039  Caulanthus flavescens Reed Clark Rollins 1946-3-25 3046 Contra Costa Western slope of Mount Diablo. Comment
  UCD114675  Caulanthus lasiophyllus P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CAS-BOT-BC48833  Ceanothus cuneatus W. W. Carruth 1907-3-1 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC48836  Ceanothus cuneatus Mary L. Bowerman 1932-5-1 1406 Contra Costa Oyster Ridge, outer steep face of Alamo Creek Comment
  UCD111751  Ceanothus cuneatus P. B. Kennedy 1916-5-31 s.n. Contra Costa between Diablo and summit. Comment
  JEPS42089  Ceanothus cuneatus var. cuneatus W. L. Jepson 1923-3-11 9847 Contra Costa Black Hills Mt. Diablo Comment
  UC692591  Ceanothus cuneatus var. cuneatus Mary L. Bowerman 1932-5-1 1406 Contra Costa Oyster Ridge, outer steep face of Alamo Creek, Mount Diablo Comment
  UC692586  Ceanothus oliganthus var. sorediatus Mary L. Bowerman 1932-9-17 1580 Contra Costa West branch of Donner Canyon Mount Diablo Comment
  JEPS75545  Centaurea calcitrapa P. F. Yorks 1975-6-21 457 Contra Costa on Hampton Road (ca. 1.6 mi s of Bear Creek Road in Hampton Road Natural Reserve, n of Briones Reservoir); Briones Reservoir, Hampton Road Natural Reserve 180 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
  JEPS44120  Centaurea melitensis W. L. Jepson 1922-7-9 9735 Contra Costa El Cerrito salt marsh El Cerrito Comment
  JEPS75544  Centaurea solstitialis P. F. Yorks 1974-8-10 362 Contra Costa ca 1.8 km s of Bear Creek Road (on Hampton Road in Hampton Road Natural Reserve, n of Briones Reservoir); Hampton Road Natural Perserve, Briones Reservoir 200 Comment
  CAS-BOT-BC284464  Centaurea solstitialis Walter Knight; Wayne Roderick; Steve Edwards; Bob Doyle 1978-9-19 3249 Contra Costa Browns Island, Alder Point Comment
  JEPS111969  Centaurium davyi Christopher Thayer 1995-6-5 Contra Costa West of Pinole Peak 274 Comment
  UC1555364  Centaurium davyi Jerry Powell 1988-6-28 1541 Contra Costa Point Molate, in w Richmond Richmond, Point Molate Comment
  UC2028274  Centaurium davyi Barbara Ertter 1999-6-12 16702 Contra Costa Black Hawk Ridge Road between Knobcone Point Road and NE fork of Sycamore Creek, South side of Mount Diablo. Comment
  UC1606360  Centaurium muehlenbergii Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10700 Contra Costa n of Pittsburg (near confluence of Sacramento River and San Joaquin River, opposite Pittsburg Marind, flat in the center of w end of Browns Island); Browns Island Comment
  CDA6636  Centranthus ruber D. G. Kelch, A. G. Murdock 2004-6-19 4 .282 Contra Costa Carquinez Strait Region; Crockett - Tormey Headlands. Along railroad tracks west of Carquinez Bridge Crockett (Valona). Comment
  CAS-BOT-BC288551  Centromadia fitchii Alice Eastwood 1921-4-18 10255 Contra Costa Antioch Comment
  JEPS88689  Centromadia fitchii John Thomas Howell 30904 Contra Costa near Turtle Rock; Mt. Diablo 259 Comment
  UC523542  Centromadia fitchii David D. Keck 1933-11-2 2616 Contra Costa 1 mi e Nicholas (n Contra Costa County) Comment
  CAS-BOT-BC288544  Centromadia fitchii James I. McMurphy 1909-5-20 s.n. Contra Costa Antioch Hills Comment
  CAS-BOT-BC288547  Centromadia fitchii Mary L. Bowerman 1936-9-17 3548 Contra Costa Mount Diablo. North Rd 2.5 miles from North Gate: at roadside, slightly lower down, extending down the bank into grassland 243 Comment
  UC2029135  Centromadia fitchii Barbara Ertter 2004-9-17 18497 Contra Costa Lime Ridge Open Space in Concord, segment southeast of Treat Boulevard, south of Kingwood Drive. Comment
  CAS-BOT-BC288873  Centromadia parryi subsp. congdonii R. E. Preston 1998-10-6 1171 Contra Costa On N side of Camino Tassajara, from Tassajara Hill Elementary School to 0.35 mile W of Finlay Rd 228 Comment
  JEPS95222  Centromadia parryi subsp. congdonii R. E. Preston 1998-10-6 1173 Contra Costa E side of Camino Tassajara, ca. 1 mi S of Highland Road 170 Comment
  CAS-BOT-BC279204  Centromadia pungens subsp. pungens David D. Keck 1933-11-2 2613 Contra Costa 3 mi. S. of Martinez on road to Pacheco Comment
  UC1563855  Centromadia pungens subsp. pungens Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8138 Contra Costa alkali sink w and adjacen to Clifton Court Forebay (ca 15 air mi sw of Stockton) 0 Comment
  UC473441  Centromadia pungens subsp. pungens John Thomas Howell 1930-9-28 5489 Contra Costa 2 mi from Concord (on road to Walnut Creek) Comment
  UC523551  Centromadia pungens subsp. pungens David D. Keck 1933-11-2 2613 Contra Costa 3 mi s Martinez (on road to Pacheco) Comment
  CAS-BOT-BC279180  Centromadia pungens subsp. pungens John Thomas Howell 1929-9-21 4395 Contra Costa Marsh Creek Road 3.5 miles sw. of Brentwood Comment
  CAS-BOT-BC279186  Centromadia pungens subsp. pungens David D. Keck 1932-7-7 1736 Contra Costa Just east of Nichols Comment
  CAS-BOT-BC279191  Centromadia pungens subsp. pungens Niall McCarten; V. I. Dains 1986-1-1 04131748 Contra Costa E. of Byron Hot Springs Rd. Comment
  UC70203  Centromadia pungens subsp. pungens J. Burtt Davy 1898-5-1 Contra Costa Livermore Pass Region of Mount Diablo Comment
  UC89012  Centromadia pungens subsp. pungens Mrs. K. Curran May 1883 Contra Costa Babbs Landing Comment
  UC1178029  Centunculus minimus Herbert L. Mason 1955-7-14 14632 a Contra Costa 1/2 mi e of Antioch Bridge Comment
  UC2028161  Cerastium glomeratum Barbara Ertter 1998-4-4 15947 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, SE of Indian Valley School. Comment
  UC1127921  Cercocarpus betuloides var. betuloides R. C. Wilson 1935-3-28 153 Contra Costa Top of Mount Diablo Mount Diablo 1158 Comment
  CAS-BOT-BC284216  Chaenactis glabriuscula var. megacephala James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  RSA0028851  Chamaesyce maculata Barbara Ertter, Rich Rabeler, Tony Morosco 1997-6-10 15666 Contra Costa Miller Knox Regional Shoreline south of Richmond, parking area for Richmond Ramblers. Comment
  UC2028248  Chamaesyce ocellata subsp. ocellata Barbara Ertter, Mary Bowerman, Lisa Schultheis 1998-8-21 16402 Contra Costa North Gate Road on west side of Mount Diablo, 1 mile below Junction. Comment
  JEPS111950  Chamaesyce serpens D. G. Kelch 2004-5-21 04 .221 Contra Costa Crockett - Edwards Canyon Edwards Creek EBRP Staging Area near Greenhouse 24 Comment
  RSA0027635  Chamaesyce serpillifolia subsp. serpillifolia Barbara Ertter, Chris Thayer 1996-10-25 15359 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park. 91 Comment
  UC2062625  Chamaesyce serpyllifolia var. serpyllifolia Barbara Ertter with John Ginochio 2002-6-1 17944 Contra Costa Ginochio house on south side of North Gate Road on NW base of Mount Diablo, lower Arroyo del Cerro. Comment
  UC42444  Cheilanthes covillei Wm. H. Brewer 1862-5-14 1085 Contra Costa summit of Mt Diablo Comment
  JEPS94004  Cheilanthes gracillima J. Greenhouse 1998-6-14 Contra Costa w. of Burma Rd. Trail ca. 1 mi. above North Gate Rd. Mt. Diablo 426 Comment
  JEPS106991  Cheilanthes intertexta J. Greenhouse with Kevin Hintsa 2004-4-5 5084 Contra Costa Mt. Diablo, Fire Interpretive Trail, Devil's Pulpit 1085 Comment
  UC42451  Cheilanthes intertexta F. T. Bioletti May 1894 Contra Costa Mt Diablo Comment
  UC1328153  Chenopodium album Olive Dyer 1936-8-29 4 Contra Costa 1 1/2 mi below San Pablo Ave.; Wildcat Creek Comment
  CDA23364  Chenopodium californicum D. G. Kelch, A. G. Murdock 2004-3-5 4 .01 Contra Costa Carquinez Strait Region; Sky Ranch. Dutra Fire Road. Franklin Canyon. Comment
  JEPS111799  Chenopodium murale D. G. Kelch 2005-3-13 05 .46 Contra Costa Crockett - weedy area under Zampa Bridge 4 Comment
  JEPS99594  Chenopodium murale Mary Bowerman 1993-10-22 Contra Costa Mount Diablo, Pine Pond. Comment
  UC2027886  Chenopodium murale Barbara Ertter with Chris Thayer 1996-10-25 15362 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park. Comment
  CDA9490  Chenopodium rubrum D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 07 .213-B Contra Costa Byron Airport. Comment
  JEPS75512  Chlorogalum pomeridianum var. pomeridianum P. F. Yorks 1975-6-29 460 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 200 Comment
  CAS-BOT-BC237992  Chloropyron molle subsp. molle Walter Knight; Neil Havlik 1979-10-7 3415 Contra Costa Point Pinole Regional Shoreline Comment
  CAS-BOT-BC252678  Chorizanthe membranacea Alice Eastwood 1915-5-30 s.n. Contra Costa Mt. Diablo Comment
  UC188732  Chorizanthe uniaristata M. K. Curran 1884-1 Contra Costa near Mount Diablo; near Mount Diablo Comment
  CAS-BOT-BC30111  Chrysolepis chrysophylla var. minor H. E. Mc. Minn 1922-5-30 31 Contra Costa Moraga ridge Comment
  UC72145  Cicendia quadrangularis Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  UC20920  Cicuta maculata var. bolanderi Jos. Burtt Davy 1900-6-7 6668 Contra Costa near Martinez Comment
  UC691379  Cirsium cymosum var. cymosum Mary L. Bowerman 1942-6-1 3848 Contra Costa se of Rock City 502 Comment
  UC691380  Cirsium cymosum var. cymosum Mary L. Bowerman June 1942 3848 Contra Costa South Road se of Rock City 502 Comment
  POM352184  Cirsium occidentale var. venustum B. C. Templeton 1962-6-10 s.n. Contra Costa Mt Diablo. Comment
  UC691390  Cirsium occidentale var. venustum Mary L. Bowerman 1930-6-10 295 Contra Costa near Mineral (on North Road); Mount Diablo 396 Comment
  SEINET11843056  Cirsium vulgare Unknown 1983-1 4989 Contra Costa Castro Ranch Rd between Hillside St. & Alhambra Valley Rd Comment
  JEPS78818  Clarkia affinis Edward Lee 1936-5-24 2158 Contra Costa about 2 mi se Curry Canyon; Morgan Territory, Marsh Creek Comment
  UCD102383  Clarkia affinis Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 1070 Comment
  RSA108230  Clarkia affinis Harlan Lewis, C. Epling 1947-5-2 196 Contra Costa March Creek Road, 1 mile west of Curry Creek Park Road Comment
  UC1795900  Clarkia affinis Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14639 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; grassy hillside. Comment
  UC692439  Clarkia biloba Mary L. Bowerman 1935-6-15 3139 Contra Costa below Ransom Point (Eagle Point Ridge); Mount Diablo 822 Comment
  CAS-BOT-BC163606  Clarkia biloba subsp. biloba C. L. Hitchcock 1928-6-5 13 Contra Costa Between Porta Costa and Martinez, 1 1/2 mile from Port Costa 40 Comment
  UC107960  Clarkia concinna subsp. concinna K. Brandegee 1892-6-9 Contra Costa Pt. Costa Comment
  UC2028270  Clarkia purpurea Barbara Ertter 1999-6-12 16707 Contra Costa Black Hawk Ridge Road between Knobcone Point Road and NE fork of Sycamore Creek, South side of Mount Diablo. Comment
  RSA448290  Clarkia purpurea subsp. quadrivulnera Bonnie C. Templeton 1962-6-10 s.n. Contra Costa Mt Diablo. Comment
  POM300657  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1942-5-24 3840 Contra Costa Mount Diablo: Jim White Trail to Deer Flat; west slope of Deer Ridge 854 Comment
  UC1279946  Clarkia rubicunda Peter H. Raven 1957-7-5 11050 Contra Costa ne side of hills Point Richmond 106 Comment
  UC107949  Clarkia unguiculata Katharine Brandegee June 1905 Contra Costa Port Costa Comment
  CDA33794  Claytonia exigua D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .111 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  JEPS68968  Claytonia exigua subsp. exigua Edward Lee 1935-3-10 1302 Contra Costa Nortonville , Kirker Creek (s watershed Kirker Creek) Comment
  UC56201  Claytonia exigua subsp. exigua H. M. Hall 1901-4-5 1759 Contra Costa Mt. Diablo; San Francisco Bay Region 1158 Comment
  UC692547  Claytonia exigua subsp. exigua Mary L. Bowerman 1935-3-16 2737 Contra Costa e fork Arroyo del Cerro; Mount Diablo 262 Comment
  UC765765  Claytonia exigua subsp. exigua R. F. Hoover 1938-3-25 2896 Contra Costa Lone Tree Valley Comment
  UC7854  Claytonia exigua subsp. exigua Maclean Mar 1875 Contra Costa Mt. Diablo Comment
  UC7935  Claytonia exigua subsp. exigua W. H. Brewer 1862-5-7 1059 Contra Costa Summit of Mt. Diablo; Mt. Diablo Comment
  UC2028068  Claytonia exigua subsp. exigua Barbara Ertter, Tony Morosco 1998-4-12 16006 Contra Costa Mount Olympia on north side of Mount Diablo, below false summit on East Trail. Comment
  CAS-BOT-BC439331  Claytonia gypsophiloides Alice Eastwood 1921-6-11 10600 Contra Costa Mt. Diablo summit Comment
  JEPS107017  Claytonia gypsophiloides J. Greenhouse with Kevin Hintsa 2004-4-5 5083 Contra Costa Mt. Diablo, Fire Interpretive Trail 1109 Comment
  UC692659  Claytonia gypsophiloides Mary L. Bowerman 1931-4-19 736 Contra Costa Deer Flat Mount Diablo (hillslope where the trail leaves the flat) Comment
  CAS-BOT-BC439441  Claytonia parviflora subsp. parviflora A. A. Heller 1908-4-17 8909 Contra Costa Tracy 10 Comment
  JEPS112034  Claytonia parviflora subsp. parviflora D. G. Kelch 2003-3-21 03 .46 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  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
  UC1618110  Claytonia perfoliata Donald G. Nelson 1937-3-30 466 Contra Costa along Marsh Creek Rd. between Claytonville and Byron Comment
  RSA31654  Claytonia perfoliata A. A. Heller 1908-4-17 8909 Contra Costa Tracy 11 Comment
  JEPS68970  Claytonia perfoliata subsp. perfoliata Edward Lee 1935-3-10 1304 Contra Costa Nortonville; s watershed of Kirker Creek Comment
  UC1745809  Claytonia perfoliata subsp. perfoliata Annetta M. Carter, Edward Lee 1935-3-29 756 Contra Costa Marsh Creek Rd., 1.2 mi. E of Clayton. Comment
  UC517966  Claytonia perfoliata subsp. perfoliata John Thomas Howell 1931-3-10 5755 Contra Costa 7 mi from Clayton (on Livermore road, e side of Mt. Diablo); Mt. Diablo Comment
  POM151217  Clematis lasiantha C. F. Baker 1903-4-28 2946 Contra Costa Mitchell's canon, Mt. Diablo. Comment
  RSA135362  Clematis lasiantha Volney Rattan 1883-04 s.n. Contra Costa Martinez. Comment
Read comments
Jul 18 2011
  SEINET5547635  Clematis ligusticifolia H. S. Gentry 1931-1 57 Contra Costa Collected near Buckle Point, Mount Diablo. Comment
  UC1050307 Image available Clerodendrum bungei N. Floy Bracelin 1941-8-24 1592 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS120287  Clinopodium vulgare Barbara Ertter with David Gowen 2012-9-20 21018 Contra Costa lower Vollmer Peak Trail paralleling South Drive, southeastern Tilden Park in Berkeley Hills, ca. midway along trail, wide spot in shade of bay and pine (same location as 20919) Comment
  CAS-BOT-BC499321  Clintonia andrewsiana Walter Knight; Irja Knight 1988-5-21 6129 Contra Costa Redwood Regional Park, between pipe bridge and single curb bridge along Stream Trail 274 Comment
  UCD123532  Collinsia bartsiifolia Annetta M. Carter 1933-4-23 299 Contra Costa above the San Joaquin River, between Antioch Bridge and Antioch. Comment
  JEPS5893  Collinsia bartsiifolia var. bartsiifolia Chesnut and Drew 1889-4-16 Contra Costa near Concord Comment
  JEPS23273  Collinsia heterophylla Rimo Bacigalupi with G. T. Robbins 1959-4-24 7043 Contra Costa 0.5 mi n Jct of Hampton Rd and Bear Creek Rd (along Hampton Rd, just n of summit) 228 Comment
  UC103400  Collinsia heterophylla K. Brandegee May 1889 Contra Costa Antioch Comment
  JEPS6336  Collinsia sparsiflora var. collina Mary L. Bowerman 1933-4-9 1836 Contra Costa w fork Donner Canyon Mount Diablo (Mount Diablo); Donner Canyon 243 Comment
  JEPS18380  Collinsia sparsiflora var. collina Rimo Bacigalupi with F. Chisaki 1957-3-27 5764 Contra Costa 1 mi se Byron (on Byron Hwy) Comment
  SBBG6880  Collinsia sparsiflora var. sparsiflora J. M. Tucker 1946-3-24 1381 Contra Costa hills between Nortonville and Somersville 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
  UC2042954  Convolvulus arvensis Barbara Ertter with David Gowen and Mike Park 2004-6-13 18375 Contra Costa Black Diamond Mines Regional Preserve, near pond on south branch of Old Homestead Loop Trail. Comment
  UCD58755  Convolvulus simulans Glen Holstein 2007-5-1 s.n. Contra Costa Near entrance to Roddy Ranch Golf Course at southeast edge of Antioch. There is a large stock pond about 100 m NW of the entrance. The collection was in disked pasture 100 m west of the pond. Comment
  UC1584663  Conyza canadensis Jerry Powell 1990-8-29 1586 Contra Costa Antioch National Wildlife Refuge Comment
  UC1005958  Coprosma baueri N. Floy Bracelin 1942-5-10 2071 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1051043  Coprosma baueri N. Floy Bracelin 1942-11-1 2348 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS105450  Cordylanthus nidularius Dean W. Taylor 1994-7-26 14554 Contra Costa Bald Ridge, Mount Diablo State Park 762 Comment
  RSA0006003  Cordylanthus nidularius J. T. Howell 1942-7-19 17044 Contra Costa Northeast of Deer Flat, Mount Diablo Comment
  UC691507  Cordylanthus pilosus subsp. pilosus Mary L. Bowerman 1936-8-8 3523 Contra Costa Emmons Canyon, W fork Mount Diablo Comment
  UC2028021  Cordylanthus pilosus subsp. pilosus Barbara Ertter 1997-9-14 15815 Contra Costa southwest side of Mount Diablo, Wall Point Road east of crest of ridge. Comment
  UC2028256  Cordylanthus pilosus subsp. pilosus Barbara Ertter, Tony Morosco 1998-9-18 16420 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, western quarry area. Comment
  CAS-BOT-BC287169  Coreopsis stillmanii Brandegee No date on label s.n. Contra Costa Mt Diablo Comment
  CAS-BOT-BC209751  Cornus glabrata Mary L. Bowerman 1935-6-21 3150 Contra Costa Mount Diablo. Arroyo del Cerro, east fork 243 Comment
  UC692510  Cornus glabrata Mary L. Bowerman 1935-3-16 2735 Contra Costa e. fork Arroyo del Cerro Mt. Diablo; , e. fork Arroyo del Cerro 262 Comment
  JEPS50136  Cornus sericea subsp. sericea W. L. Jepson 1914-10-31 6212 Contra Costa Oakland Hills, Moraga Ridge Comment
  UC651290  Coronopus didymus Ira L. Wiggins 1930-4-18 4595 Contra Costa e end of Jersey Island, Fallow cornfield Jersey Island Comment
  SEINET12765135  Coronopus didymus Barbara Ertter 1990-5-15 8991 Contra Costa Soth El Cerrito, north foot of Albany Hill at end of Yosemite Avenue cul-de-sac.; 0 Comment
  UCD59798  Cortaderia jubata Beecher Crampton 1959-9-3 5456 Contra Costa Along San Pablo Dam road, ca. 2 miles southeast of El Sobrante. Comment
  UC2028523  Cortaderia jubata Barbara Ertter 1997-9-14 15814 Contra Costa Southwest side of Mount Diablo, Secret Trail at head of Pine Canyon. Comment
  CAS-BOT-BC190075  Cortaderia selloana Walter Knight 1978-9-19 3247 Contra Costa Browns Island. South Landing. Comment
  JEPS75514  Corylus californica P. F. Yorks 1975-3-9 376 Contra Costa N of Briones Reservoir, ca. 1.6 km S of Bear Creek Road on Hampton Road Hampton Road Natural Reserve 200 Comment
  CDA39608  Corylus cornuta var. californica D. G. Kelch 2003-8-13 3 .126 Contra Costa Carquinez Strait; Vaca Canyon. Comment
  UCR7819  Corylus cornuta var. californica Wm. Horn Jr. 1964-2-26 640226- 01 Contra Costa San Francisco Bay Region, Flicker Ridge, 1.5 mi SW of Moraga 183 Comment
  RSA729909  Cotoneaster pannosus Peter F. Zika, B. Ertter 2007-5-11 22967 Contra Costa Near Arlington Boulevard and Brewster Drive, city of El Cerrito (SnFrB = San Francisco Bay Area) 210 Comment
  UC2028111  Cotula australis Barbara Ertter with Christopher Baysdorfer 1998-5-10 16111 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, of Ohlone Trail. Comment
  JEPS37545  Cotula coronopifolia R. F. Hoover 1935-3-10 302 Contra Costa Nortonville Comment
  JEPS111821  Crassula connata A. G. Murdock 2004-3-19 218 Contra Costa Luzon Sycamore Ave. just east of Rodeo/Hercules where train crosses Highway 4 60 Comment
  UC2032831  Crassula connata Doran, Andrew Scott 2012-3-20 701 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  UC2027788  Crassula connata Barbara Ertter 1991-5-5 9787 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, vernally moist flat at edge of Black Diamond Trail ca. 1/4 mi E of pond Comment
  UC606743  Crassula connata var. subsimplex Edward Lee 1936-4-19 1967 Contra Costa bluff at n.e. corner of island Red Rock Comment
  UC692556  Crassula connata var. subsimplex Mary L. Bowerman 1931-3-21 586 Contra Costa Sycamore Canyon Mt. Diablo, Sycamore Canyon 335 Comment
  UC2028072  Crassula tillaea Barbara Ertter with Tony Morosco 1998-4-12 15995 Contra Costa Base of Mount Olympia on north side of Mount Diablo, base of quarry NE of Olympia Trail. Comment
  UC2028142  Crassula tillaea Barbara Ertter 1998-4-4 15973 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, Quarry Hill. Comment
  UC692623  Crocanthemum scoparium var. vulgare Mary L. Bowerman 1932-10-1 1598 Contra Costa ridge s Uncle Sam Canyon; Mount Diablo, Eagle Point Ridge Comment
  UC30123  Croton californicus Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  CDA35288  Croton californicus F. J. Brucato 1962-8-21 Contra Costa Antioch, Wilbur Ave, 1 mile west of Hwy 24. 0 Comment
  RSA498985  Croton californicus E. E. Stanford 1930-5-30 1533 Contra Costa Near Knightsen. Comment
  RSA757946  Crypsis vaginiflora Barbara Ertter 1989-9-30 8865 Contra Costa Tilden Regional Park east of El Cerrito, East Bay Skyline National Recreation Trail (= Nimitz Way), small dried pond about 1.25 miles northwest of Inspiration Piont. Comment
  SEINET4343820 Image available Crypsis vaginiflora Unknown 1989-9-30 8865 Contra Costa Tilden Regional Park E of El Cerrito, East Bay Skyline Nat'l Recreation Trail (= Nimitz Way), small dried pond ca 1 1/4 mi NW of Inspiration Point. Comment
  CAS-BOT-BC189243  Cryptantha Alice Eastwood 1915-5-30 4539 Contra Costa Mount Diablo Comment
  UC691350  Cryptantha clevelandii Mary L. Bowerman 1933-5-18 2129 Contra Costa Southwest of Blackberry Spring Comment
  CDA31171  Cryptantha clevelandii var. clevelandii D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .224 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  UC762391  Cryptantha decipiens R. F. Hoover 1938-5-4 3347 Contra Costa Peak E of Tassajero Creek 762 Comment
  SBBG54489  Cryptantha flaccida L. R. Abrams 1921-5-25 8017 Contra Costa Mt Diablo near summit Comment
  POM226201  Cryptantha flaccida Lincoln Constance, Carl Sharsmith, H. S. Reed 1940-4-27 2573 Contra Costa Pine Canyon, base of Mt Diablo 305 Comment
  CAS-BOT-BC168062  Cryptantha hooveri A. A. Heller 1908-4-16 8888 Contra Costa Sand hills east of Antioch 22 Comment
  RSA0068479  Cryptantha microstachys Katie Gallagher, Nick Jensen 2014-4-26 199 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  SEINET3863389 Image available Cupressus macrocarpa Michael R. Tansey 1963-2-15 4 Contra Costa Moist Berkeley Clay, est exposure on hillside, east of golf courrse 30 yds. in Tilden Regional Park, Cal.; 0 183 Comment
  UCR51833  Cuscuta californica P. A. Munz 1947-10-8 12200 Contra Costa Dunes near Antioch 8 Comment
  CDA21191  Cuscuta japonica R. Fonseca 2006-12-12 PDR 1373709 Contra Costa San Francisco Bay Area; 654 Marlesta Rd, Pinole. Sheet 1 of 2. 0 Comment
Read comments
Apr 29 2013
  CDA33660  Cuscuta japonica Yost/Fonseca 2008-8-7 PDR# 14544449 Contra Costa Richmond; 101 Marcus Ave. 0 Comment
  JEPS75511  Cuscuta subinclusa P. F. Yorks 1975-7-31 481 Contra Costa ca 1.6 km s Bear Creek Road (on Hampton Road, n of Briones Reservoir); Hampton Road Natural Reserve 200 Comment
  RSA0029362  Cuscuta subinclusa Barbara Ertter, Mary L. Bowerman 1996-11-1 15409 Contra Costa North base of Mount Diablo, south end of Hetherington Trail at Donner Creek crossing. 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
  CDA4533  Cynara cardunculus T. C. Fuller 1957-10-2 399 -57 Contra Costa Antioch. 0 Comment
  UCD33766  Cynara cardunculus Beecher Crampton 1972-11-21 8888 Contra Costa 2 miles east of Crockett. Comment
  CAS-BOT-BC299743  Cynara cardunculus John Thomas Howell 1953-3-15 28922 Contra Costa Danville 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
  UC615167  Cynoglossum grande Beryl O. Schreiber 1932-2-27 27 Contra Costa Redwood Canyon Comment
  UCR7818  Cynoglossum grande Wm. Horn Jr. 1964-2-26 640226- 2 Contra Costa San Francisco Bay Region, Flicker Ridge, 1.5 mi SW of Moraga 183 Comment
  CDA43393  Cynosurus echinatus D. G. Kelch 2012-5-27 12 .074 Contra Costa Carquinez Strait Region; Pinole Valley Park. Comment
  JEPS99559  Cynosurus echinatus Mary Bowerman 1995-5-28 Contra Costa Mount Diablo, Fire road from Macedo Ranch to Wall Pt. Ridge. Comment
  CAS-BOT-BC114613  Cyperus eragrostis James McMurphy 1908-10-18 s.n. Contra Costa Antioch Comment
  UC1818863  Cyperus eragrostis Barbara Ertter, Kristin Ertter 1995-7-11 14470 Contra Costa Sulfur Spring on Pine Cr, Diblo Foothill Regional Park, marshy wet ground. 121 Comment
  UC2070507  Cyperus erythrorhizos Barbara Ertter with Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 19803 Contra Costa Mudflats at upper (south) end of San Pablo Dam Reservoir northwest of Orinda. Comment
  CAS-BOT-BC113937  Cyperus odoratus Walter Knight; Irja Knight 1980-8-26 3769 Contra Costa Hercules. Comment
  JEPS108221  Cystopteris fragilis David Gowen 2005-4-30 276 Contra Costa Morgan Territory Regional Preserve. Growing on stream edge, east of Condor Trail. Comment
  SD243345  Cytisus striatus D. G. Kelch 2007-4-27 07 202 Contra Costa Martinez; on hill NE of Hwy 4 @ Alhambra Road. 79 Comment
  UC1606344  Datura wrightii Barbara Ertter, B. Olson, D. Lake, L. Hosley and A. Youngson 1991-10-20 10857 Contra Costa just w Antioch marina (Dow Wetlands Preserve, plowed fields at sw end); Dow Wetlands Preserve Comment
  UC2028007  Datura wrightii Barbara Ertter with Amy Rusev 1998-1-17 15897 Contra Costa Lime Ridge Open Space at NW foot of Mount Diablo, sandy open N-facing slope on NE corner of open space (off trail). Comment
  JEPS75509  Daucus pusillus P. F. Yorks 1974-6-8 173 Contra Costa n. Briones Reservoir (ca. 1.6 km. s. of Bear Creek Rd. on Hampton Rd. in Hampton Rd. Natural Reserve); Hampton Rd. Natural Reserve 180 Comment
  JEPS20071  Deinandra corymbosa Peter H. Raven 1957-7-5 11052 Contra Costa tip of Point Isabel Point Isabel Comment
  UC1594185  Deinandra corymbosa Jerry Powell 1992-6-17 1648 Contra Costa Richmond Field Station Comment
  CAS-BOT-BC287375  Deinandra corymbosa H. M. Hall 1914-8-23 9862 Contra Costa Giant 22 Comment
  UC2029026  Deinandra corymbosa Barbara Ertter 2002-6-16 17952 Contra Costa Richmond Field Station (UC-Berkeley). Comment
  UCD35140  Deinandra corymbosa Beecher Crampton 1950-6-20 596 Contra Costa Richmond Comment
  CAS-BOT-BC294018  Deinandra kelloggii Mrs. Curran 1883-5-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC294024  Deinandra kelloggii James I. McMurphy 1908-10-18 s.n. Contra Costa Antioch Comment
  UC88925  Deinandra kelloggii K. Brandegee 1889-5-1 Contra Costa Antioch Comment
  UC691769  Deinandra kelloggii H. L. Mason 1929-3-29 5137 Contra Costa 2 mi above Clayton (Marsh Creek Road) Comment
  SEINET9288997  Delairea odorata Unknown 1999-12-20 1219291 Contra Costa Along Wildcat Canyon Rd., 1.9 mi NW of intersection of Wildcat Canyon Rd and Dam Rd. vicinity of Orinda. Comment
  UC635349  Delphinium H. L. Mason 1925-3-10 1301 Contra Costa Mount Diablo; along lower canyon slopes Comment
  UC691948  Delphinium californicum Mary L. Bowerman 1935-5-30 3091 Contra Costa rock slide Mount Diablo, Eagle Point Ridge 350 Comment
  UCD95636  Delphinium californicum P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UC1795684  Delphinium californicum subsp. interius Barbara Ertter, Mary L. Bowerman 1994-6-19 12841 Contra Costa Mt. Diablo State Park east of Walnut Creek; Muir Picnic Area on Summit Road, 1005 Comment
  UC72893  Delphinium californicum subsp. interius Milo S. Baker 1904-6-23 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC8749  Delphinium hansenii H. Lewis; C. Epling 1947-5-4 703 Contra Costa Marsh Creek Road, 5.8 mi. east of Curry Creek Park Road Comment
  JEPS105715  Delphinium hansenii subsp. hansenii David Gowen 2004-5-10 57 Contra Costa Round Valley Regional Preserve.North-facing slope above the main road through the park, ca. 1/2 mile west of the entry. 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
  SEINET11268200  Delphinium hesperium subsp. hesperium Barbara Ertter 1998-5-13 16137 Contra Costa In hills south of Pittsburg, head of SE branch of Loughler Loop Trail.; 0 305 Comment
  LA38169  Delphinium hesperium subsp. pallescens Lewis; Mehlquist 455 Contra Costa Just E of the Antioch Golf Couse Comment
  UC9183  Delphinium hesperium subsp. pallescens W. H. Brewer 1862-5-29 1185 Contra Costa near Camp 71; Marsh's Ranch Comment
  SJSU3105  Delphinium patens J. A. Johnson 1956-4-7 3 Contra Costa W slope Mt Diablo Comment
  POM203934  Delphinium patens J. T. Howell 1931-3-10 5758 Contra Costa East side of Mt. Diablo 7 miles from Clayton on Livermore road. Comment
  CAS-BOT-BC116454  Delphinium patens subsp. patens H. L. Mason 1928-4-29 4440 Contra Costa Sycamore Canyon, south slope of Mount Diablo Comment
  CAS-BOT-BC116457  Delphinium patens subsp. patens Alice Eastwood 1915-5-30 4497 Contra Costa Mt. Diablo Comment
  POM270661  Delphinium patens subsp. patens Lyman Benson 1935-3-16 62655 Contra Costa Mt. Diablo, Watershed: Walnut Creek; Mountain Range: Mt. Diablo. 915 Comment
  HSC8594  Dendromecon rigida D. A. Shally 1965-4-18 32 Contra Costa Canyon, 1.5 mi. NE of Canyon Store on 'fire trail Comment
  UC650562  Deschampsia danthonioides Ira L. Wiggins 1930-4-17 4576 Contra Costa 1/4 mi. s. Byron Comment
  UC692394  Deschampsia danthonioides Mary L. Bowerman 1935-6-28 3175 Contra Costa 300 yds. e. of meridian fence line Meridian Peak summit (Mt. Diablo); Mt. Diablo 487 Comment
  UCD62786  Deschampsia danthonioides Beecher Crampton 1968-3-27 8235 Contra Costa SE corner, ca. 3.5 miles south of Byron. 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
  CHSC97924  Deschampsia elongata D. G. Kelch 2002-6-18 02 .214 Contra Costa Wildcat Canyon Road in Tilden Park. Comment
Read comments
Dec 14 2010
  UC1606345  Deschampsia elongata Barbara Ertter, Brad Olson 1991-9-28 10843 Contra Costa s. end of San Pablo Reservoir between Orinda and El Sobrante; San Pablo Reservoir 94 Comment
  CDA39457  Dichelostemma capitatum D. G. Kelch 2007-3-24 7 .092 Contra Costa Carquinez Strait; Ozol; between Port Costa and Martinez, near old brick quarry. Comment
  JEPS75528  Dichelostemma capitatum P. F. Yorks 1976-3-7 116 Contra Costa ca 2 km s Bear Creek Road (on Hampton Road, in Hampton Road Natural Reserve, n of Briones Reservoir); Hampton Road Natural Reserve 200 Comment
  UC765943  Dichelostemma capitatum R. F. Hoover 1938-2-21 2756 Contra Costa Point Richmond Comment
  UC1300935  Dichelostemma congestum Helen K. Sharsmith 1962-5-20 5071 Contra Costa ne slope Mount Diablo (Headwaters of Marsh Creek); San Francisco Bay Region, , Marsh Creek 304 Comment
  JEPS121009  Digitaria sanguinalis D. G. Kelch 2006-9-6 06 .469 Contra Costa Elkhorn Creek, E of Crockett Comment
  UCD137497  Dipsacus fullonum P. B. Kennedy 1917-2-8 s.n. Contra Costa Craigmont. Comment
  JEPS77000  Dirca occidentalis Robert M. Lloyd 1963-3-17 2131 Contra Costa Skyline Drive 0.5 mi e intersection with Grizzly Peak Road (across from 7090 Skyline, Huckleberry trail) Comment
  UC565411  Dirca occidentalis Chas. M. Belshaw 1935-3-3 372 Contra Costa shallow draw on ne face Bald Peak; San Pablo Reservoir Comment
  UC766022  Dirca occidentalis R. F. Hoover 1938-3-8 2822 Contra Costa e slope Grizzly Peak ridge Comment
  UCR143109  Dirca occidentalis L. S. Rose 1948-3-9 48011 Contra Costa San Francisco Bay Region, head of Wildcat Canyon, Berkeley hills 457 Comment
Read comments
Feb 14 2006
  JEPS112508  Disporum hookeri A. G. Murdock 2003-6-2 83 Contra Costa Franklin Canyon - McHarry Ranch Rd. 137 Comment
  UC400146  Disporum hookeri Ynes Mexia 1929-4-21 2387 Contra Costa Moraga Valley Comment
  UC692001  Disporum hookeri Mary L. Bowerman 1931-3-22 606 Contra Costa Mount Diablo, e fork Alamo Canyon Alamo Canyon; Mount Diablo, Alamo Canyon Comment
  CAS-BOT-BC208653  Distichlis spicata A. A. Beetle 1941-6-24 s.n. Contra Costa Point Richmond on San Francisco Bay Comment
  UC2028443  Distichlis spicata Barbara Ertter with Chris Thayer 1996-10-25 15368 Contra Costa Northwest flank of Mount Diablo, Northgate east end Northgate Trail from North Gate Road to Diablo Foothills Regional Park Comment
  UCD64394  Distichlis spicata var. stolonifera M. Wiesendanger 1926-6-1 1534 Contra Costa Richmond. Comment
  UC2042955  Dittrichia graveolens Barbara Ertter with David Gowen, Mike Park and Abby Moore 2006-11-24 18785 Contra Costa Mt Diablo State Park, Live Oak Campground. Comment
  UCR146709  Dittrichia graveolens Tina Carlsen 1996-10-9 s.n. Contra Costa Livermore, east side of Greenville Rd., c. 0.5 mi south of I-580 183 Comment
  JEPS102896  Dodecatheon clevelandii subsp. patulum Barbara Ertter 1998-2-15 15918 Contra Costa Haystack Hill N of Borges Ranch Mount Diablo, Shell Ridge Recreation Area Comment
  JEPS68971  Dodecatheon clevelandii subsp. patulum Edward Lee 1935-3-10 1305 Contra Costa s watershed of Kirker Creek Nortonville (s watershed of Kirker Creek) (Nortonville) Comment
  UC1123279  Dodecatheon clevelandii subsp. patulum R. C. Wilson 1935-2-26 110 Contra Costa 3/4 mi sw Somersville; Mt. Diablo Quad., sw of Somersville Comment
  RSA6497  Dodecatheon clevelandii subsp. patulum D. D. Keck 1933-4-2 1997 Contra Costa Vasco Rd., south of Vasco School. 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
  UC1618109  Dodecatheon hendersonii Donald G. Nelson 1937-3-30 461 Contra Costa Along Marsh Creek Road between Clayton and Byron Comment
  POM203314  Dodecatheon hendersonii subsp. cruciatum J. T. Howell 1931-3-10 5756 Contra Costa East side of Mt. Diablo 7 miles from Clayton on Livermore road. Comment
  SEINET8733889 Image available Downingia elegans H. S. Reed 1940-1 356 a Contra Costa six miles south of Antioch 15 Comment
  UC1051468  Downingia insignis Herbert L. Mason 1952-4-14 14267 Contra Costa 3.5 mi s Byron Comment
  UC407372  Downingia insignis Ira L. Wiggins 1930-4-17 4570 Contra Costa 0.25 mi s Byron Comment
  UC903204  Downingia insignis Ethel Crum 1938-5-1 1979 Contra Costa 3 mi se Byron (w side of San Joaquin Valley); San Joaquin Valley 7 Comment
  RSA107032  Downingia insignis L. S. Rose 1956-4-16 56017 Contra Costa 2 miles SE of Byron 8 Comment
  RSA436120  Downingia insignis L. S. Rose 1936-4-24 36154 Contra Costa 8 miles S of Antioch. 30 Comment
  RSA610775  Downingia insignis L. S. Rose 1936-4-24 36154 Contra Costa 8 miles S of Antioch. 30 Comment
  SEINET3147638  Downingia ornatissima L. S. Rose 1940-4-30 40258 Contra Costa 4 mi S of Antioch 30 Comment
  RSA166380  Downingia ornatissima var. eximia John H. Thomas 1953-4-25 3003 Contra Costa Empire Mine Road near Antioch Golf Course. South of Antioch. Comment
  UCR196232  Downingia pulchella Beecher Crampton 1950-4-22 535 Contra Costa Concord Valley, between Hwy 4 and Buchanan Field (airport) 15 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
  CAS-BOT-BC70861  Dryopteris arguta O. N. Sanford 1878-11-24 s.n. Contra Costa Mt. Diablo Comment
  JEPS100162  Dryopteris arguta A. Langston 2003-6-19 AL 50 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111938  Dryopteris arguta D. G. Kelch 2004-9-2 04 .340 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Martinez (Ozol) CA East of Ozol 25 Comment
  UC692113  Dryopteris arguta Mary L. Bowerman 1930-6-18 342 Contra Costa Dan Cook Canyon; Mt. Diablo Comment
  RSA0068493  Dryopteris arguta Katie Gallagher, Nick Jensen 2014-4-26 181 Contra Costa Las Trampas Regional Wilderness. 365 Comment
  SD51677  Dudleya farinosa G. Thomas Robbins 1959-5-16 4007 Contra Costa Rocky hillside just south of Pt. San Pablo, Potrero Hills, Richmond. Comment
  UC2028504  Echinochloa colona Barbara Ertter with Mary Bowerman, Lisa Schultheis 1998-8-21 16403 Contra Costa North Gate Road on west side of Mount Diablo, 0.7 miles below Diablo Ranch Comment
  CAS-BOT-BC197109  Echinochloa crus-galli Walter Knight 1978-8-27 3198 Contra Costa Contra Loma Regional Park near Antioch 30 Comment
  POM300733  Echinochloa crus-galli Mary L. Bowerman 1938-10-15 372 Contra Costa North Road, by through where trail to west base spring begins. 213 Comment
  SEINET245836 Image available Echinochloa crus-galli Beecher Crampton 1965-9-29 7527 Contra Costa 2 miles south of Brentwood, jct. Of Walnut ave. and Marsh Creek rd., Comment
  CDA2007  Echinochloa crus-galli var. crus-galli D. G. Kelch, A. G. Murdock 2003-8-13 3 .121 Contra Costa Carquinez Strait Region; Martinez Marsh Comment
  SEINET3407559 Image available Echinocystis fabacea Lewis S. Rose 1933-3-10 33010 Contra Costa Marsh Creek Comment
  CAS-BOT-BC291118  Eclipta prostrata Walter Knight; Irja Knight 1980-8-26 3770 Contra Costa Hercules Comment
  RSA0027708  Eclipta prostrata Barbara Ertter 1996-9-19 15298 Contra Costa Antioch Marina, edge of Dow Marsh lands. Comment
  SD107682  Eclipta prostrata Walter Knight, Irja Knight 1980-8-26 Contra Costa Pond's edge in a sewage disposal plant. Comment
  UC1606336  Elatine californica Barbara Ertter, Brad Olson 1991-9-28 10829 Contra Costa betw Orinda and El Sobrante San Pablo Reservoir Comment
  SEINET10747423  Eleocharis macrostachya Barbara J. Ertter 1991-9-28 Ertter 10836 Contra Costa San Pablo Reservoir between Orinda and El Sobrante, dried mud flats at S en of reservoir, 91 Comment
  POM300639  Eleocharis palustris Mary L. Bowerman 1935-6-21 3152 Contra Costa Mount Diablo: South of Turtle Rock, pool east of main pond Comment
  UC756639  Elymus G. L. Stebbins Jr. 1946-6-9 3656 Contra Costa 2 mi e El Cerrito (near Mira Vista Country Club) Comment
  POM357109  Elymus X gouldii Glenn A. Gorelick 1967-5-13 s.n. Contra Costa Point Richmond Comment
  UC691172  Elymus X hansenii Mary L. Bowerman 1935-7-22 3184 Contra Costa Mountain Springs Canyon Mount Diablo (about 100 ft from bottom) 670 Comment
  UC2070654  Elymus caput-medusae Barbara Ertter with Steve Matson 2003-5-31 18185 Contra Costa Black Diamond Mines Regional Preserve south Pittsburg, between Somersville and Nortonville. Comment
  SEINET252196  Elymus glaucus David Amme 1988-8-16 Contra Costa Kensington Comment
  UC2028479  Elymus glaucus Barbara Ertter with Richard K. Brummitt 1998-5-6 16101 Contra Costa Point San Pablo west of Richmond, crest of road to yacht harbor Comment
  UC691177  Elymus multisetus Mary L. Bowerman 1933-6-20 2325 Contra Costa Median Ridge (Donner Canyon) Mount Diablo (w face) Comment
  SEINET12755579  Elymus triticoides J. B. Davy 1900-6-7 6658 Contra Costa Near Pacheco. Comment
  UC2028385  Elymus triticoides Barbara Ertter 1998-6-20 16255 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, wet margin of Willow Spring Pond south of Ginder Gap Comment
  JEPS1599  Emmenanthe penduliflora Mary L. Bowerman 1933-4-26 1916 Contra Costa North Peak ridge east-southeast of the peak, south face, Mount Diablo 609 Comment
  UC2042778  Epilobium brachycarpum Barbara Ertter 1990-9-10 9637 Contra Costa Briones Regional Park, Briones Hills S of Martinez, eroded N-facing draw between Sindicich and Maricich lagoons. Comment
  CDA15837  Epilobium brachycarpum R. M. Case 1999-10-22 PDR 1206167 Contra Costa San Francisco Bay Area; near Walnut Creek. 0 Comment
  UC764884  Epilobium campestre R. F. Hoover 1937-5-14 2119 Contra Costa Byron Hot springs Comment
Read comments
Dec 18 2008
  UC101787  Epilobium campestre Katharine Brandegee 1907-6-16 Contra Costa near S. P. Railway Station; Antioch Comment
  UC521671  Epilobium canum subsp. canum Joseph Andorfer Ewan 1933-10-15 8023 Contra Costa water tank at Indian Ceremonial Spr. Mt. Diablo Comment
  CAS-BOT-BC166161  Epilobium canum subsp. canum E. M. Zeile 1921-10-1 40 Contra Costa Vallejo Junction Comment
  RSA209508  Epilobium canum subsp. canum Peter Rubtzoff 1951-10-7 814 Contra Costa 1 to 2 miles southwest of Moraga near the road Comment
  CDA38079  Epilobium ciliatum D. G. Kelch 2003-8-13 3 .142 Contra Costa Carquinez Strait; Pinole Creek. Comment
  UC1613486  Epilobium ciliatum subsp. ciliatum Charles M. Belshaw 1936-12-13 2746 Contra Costa near Berkeley Country Club (North Coast Range); North Coast Range 152 Comment
  RSA128599  Epilobium ciliatum subsp. ciliatum Peter H. Raven 1950-7-5 2490 Contra Costa On the N road, Mt Diablo 396 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
  JEPS38247  Epilobium densiflorum W. L. Jepson 1894-9-7 14401 Contra Costa Grizzly Peak Berkeley Hills Comment
  UC521667  Epilobium densiflorum Joseph Andorfer Ewan 1933-10-15 8025 Contra Costa above Indian Ceremonial Spr. (in depression where water lingered); Mount Diablo Comment
  UC692440  Epilobium minutum Mary L. Bowerman 1935-5-18 3022 Contra Costa nw-facing slope across road and a little e of parking area; Mount Diablo 1066 Comment
  UC2070524  Epipactis gigantea 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 18565 Contra Costa Long Ridge on west side of Mount Diablo, stringer below Moses Rock Spring on Burma Road. Comment
  UCD138951  Epipactis gigantea Terri Williamson 1990-6-2 89 Contra Costa 212 Poshard Street, Pleasant Hill. 12 Comment
  RSA118089  Eragrostis curvula J. T. Howell 1954-9-5 30026 Contra Costa Along road, Marsh Creek Springs Park Comment
  CDA4553  Erechtites glomeratus D. G. Kelch 2005-5-5 5 .218 Contra Costa Carquinez Strait Region; Point Pinole - Giant Marsh. Giant Salt Marsh. Comment
  UC2028020  Ericameria arborescens Barbara Ertter 1997-9-14 15816 Contra Costa Southwest side of Mount Diablo, Wall Point Road on open sandstone ridge northwest of Wall Point. Comment
  CAS-BOT-BC287531  Ericameria linearifolia C. F. B. 1903-4-28 2942 Contra Costa Mitchell's Canyon, Mt Diablo Comment
  POM289061  Ericameria linearifolia Lyman Benson 1935-3-16 6267 Contra Costa Mt. Diablo, Watershed: Walnut Creek; Mountain Range: Mt. Diablo. 915 Comment
  POM56950  Ericameria linearifolia C. F. Baker 1903-4-28 2942 Contra Costa Mitchell's Canyon, Mt. Diablo. Comment
  UC1118739  Ericameria linearifolia C. M. Belshaw 1936-5-8 2066 Contra Costa se slope of Mt. Diablo Mt. Diablo Quadrangle, Mt. Diablo (Plot 5) Comment
  UC36564  Ericameria linearifolia F. P. McLean 1875-3-1 Contra Costa Mt. Diablo Comment
  UC75068  Ericameria linearifolia C. F. Baker 1903-4-28 2942 Contra Costa Mitchell's Canyon Mt. Diablo, Mitchell's Canyon (Mt. Diablo, open mountain slopes) Comment
  CAS-BOT-BC287526  Ericameria linearifolia Mary L. Bowerman 1938-5-28 3649 Contra Costa Mount Diablo. Silver Creek Nook (North Rd) 640 Comment
  SEINET5552883  Ericameria linearifolia H. S. Gentry 1931-1 54 Contra Costa Collected near Mt. Diablo. 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
  CDA42377  Erigeron foliosus var. franciscensis D. G. Kelch 2012-6-1 12 .095 Contra Costa Carquinez Strait Region; 1 km east of Port Costa in the vicinity of the old brick factory. Comment
  JEPS79321  Erigeron foliosus var. franciscensis Edward Lee with Annetta Carter 1935-8-17 1633 Contra Costa Antioch sand-dunes Comment
  UC2070521  Erigeron foliosus var. franciscensis Barbara Ertter with Delia Taylor 2003-6-22 18228 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, N-facing slope along Arata Overlook Trail NE of park headquarters. Comment
  UC31418  Erigeron lonchophyllus F. P. McLean 1875-3-1 Contra Costa Mt. Diablo Comment
  UC31419  Erigeron lonchophyllus F. P. McLean 1875-3-1 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC295516  Erigeron miser Joseph Andorfer Ewan 1936-7-5 9735 Contra Costa Wildcat Creek Comment
  JEPS41373  Erigeron philadelphicus var. philadelphicus W. L. Jepson 1922-5-26 9672 Contra Costa North Berkeley Hills Comment
  UC31514  Erigeron philadelphicus var. philadelphicus J. Burtt Davy 1895-4-13 1007 Contra Costa near Lafayette Comment
  UC1779709  Eriobotrya japonica Rudolf Schmid 1997-5-21 1997 -11 Contra Costa Hillside Natural Area, El Cerrito; some distance NW of King Ct. entrance, near W side of road, in drainage gully north of the Salix-Corylus grove. 126 Comment
  CAS-BOT-BC224220  Eriodictyon californicum Mary L. Bowerman 1932-9-3 1530 Contra Costa Mount Diablo. Muir Area: Burn (1931) Comment
  UC35509  Eriodictyon californicum F. P. McLean March, 1875 Contra Costa Mt. Diablo Comment
  POM196479  Eriogonum J. T. Howell 1929-9-21 7392 Contra Costa Marsh Creek Road 8 miles southeast of Clayton Comment
  POM300577  Eriogonum Mary L. Bowerman 1932-11-11 1639 Contra Costa Little below Moses Rock Spring: dry grassy ridge, leading up from Buckle Point (on west road). Comment
  JEPS108225  Eriogonum covilleanum David Gowen 2005-5-6 281 Contra Costa Mt. Diablo State Park. Talus slope on the south side of North Peak. Comment
  UC691087  Eriogonum gracile Mary L. Bowerman 1932-8-27 1524 Contra Costa s Turtle Rock; Mount Diablo Comment
  JEPS99481  Eriogonum gracile Mary Bowerman 1975-6-7 Contra Costa Mount Diablo. Trail W of Murchio Gap to Deer Flat. Comment
  UC521769  Eriogonum luteolum var. luteolum Joseph Andorfer Ewan 1933-10-15 8022 Contra Costa sw slope Mt. Diablo Mt. Diablo Comment
  UC767894  Eriogonum luteolum var. luteolum R. F. Hoover 1937-9-2 2714 Contra Costa Lower Marsh Creek Canyon Comment
  SEINET8349867  Eriogonum nudum Barbara Ertter 1997-8-18 15766 Contra Costa Antioche Dunes (USFWS National Wildlife Refuge) on San Joaquin River east of Antioch, southwest corner of refuge north of railroad tracks in former vineyard. Comment
  RSA39906  Eriogonum nudum var. auriculatum P. A. Munz 1947-10-8 12204 Contra Costa Sand dunes east of Antioch 8 Comment
  UC691129  Eriogonum nudum var. auriculatum Mary L. Bowerman 1932-9-17 1585 Contra Costa west fork of west fork Donner Canyon; Mount Diablo 335 Comment
  UC692198  Eriogonum nudum var. auriculatum Mary L. Bowerman 1932-10-1 1597 Contra Costa s Uncle Sam Canyon (Eagle Point Ridge); Mount Diablo Comment
  UC692203  Eriogonum nudum var. auriculatum Mary L. Bowerman 1932-9-24 1593 Contra Costa flat-topped ridge above Mitchell Rock; Mount Diablo 441 Comment
  CAS-BOT-BC268905  Eriogonum nudum var. auriculatum H. E. McMinn No date on label 133 Contra Costa Collected from near summit of Mt. Diablo, N. slope Comment
  UC2029055  Eriogonum nudum var. auriculatum Barbara Ertter with Delia Taylor 2003-6-22 18227 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, ridge south of Arata Overlook Trail NE of park headquarters east of Somerville Road. Comment
  UCSB1460  Eriogonum nudum var. auriculatum Keator, Glenn 1959-7-1 Contra Costa 1/4 mile above Laurel camp on Mt. Diablo Comment
  CAS-BOT-BC269822  Eriogonum nudum var. pubiflorum H. L. Mason 1929-9-21 5433 Contra Costa Along Marsh Creek Road three miles above Clayton Comment
  CAS-BOT-BC253092  Eriogonum roseum R. F. Hoover 1940-11-30 4699 Contra Costa 2 mi. S of Antioch Comment
  JEPS102909  Eriogonum roseum Barbara Ertter with Tony Morosco 1998-10-18 16436 Contra Costa NE corner of Lime Ridge recreation Area Mount Diablo 182 Comment
  SEINET3836874 Image available Eriogonum roseum W. L. Jepson 1895-9-14 14779 Contra Costa Walnut Creek Comment
  CAS-BOT-BC267444  Eriogonum truncatum Mary L. Bowerman 1933-5-25 2198 Contra Costa Mount Diablo. Alamo Canyon: above Wilsons' barn Comment
  CAS-BOT-BC267447  Eriogonum truncatum M. K. C. 1886-5-1 s.n. Contra Costa Antioch Comment
  JEPS56301  Eriogonum truncatum M. K. Curran May 1886 Contra Costa Antioch Comment
  CAS-BOT-BC267873  Eriogonum umbellatum var. bahiiforme Mary L. Bowerman 1930-6-14 328 Contra Costa Mount Diablo Comment
  CAS-BOT-BC262353  Eriogonum vimineum Alice Eastwood 1941-6-22 s.n. Contra Costa Near summit of Mt. Diablo Comment
  CAS-BOT-BC298507  Eriophyllum confertiflorum Alice Eastwood 1915-6-21 4739 Contra Costa San Leandro Comment
  UC196644  Eriophyllum jepsonii J. W. Congdon 1896-5-29 Contra Costa Mt. Diablo Comment
  UC691685  Eriophyllum jepsonii Mary L. Bowerman 1931-6-2 918 Contra Costa Gregory Ranch Road Comment
  POM301034  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1935-5-22 3065 Contra Costa Most westerly of the two ridged which converge at Twin Peaks (Eagle Point Ridge) 366 Comment
  POM301035  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1933-6-21 2339 Contra Costa Donner Canyon Comment
  UC134928  Eriophyllum lanatum var. achilleoides Katharine Brandegee 1907-6-16 Contra Costa hills near Antioch 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
  UC2032834  Erodium cicutarium Doran, Andrew Scott 2012-3-20 704 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  JEPS105685  Erodium macrophyllum David Gowen 2003-2-23 s. n. Contra Costa Black Diamond Mines Regional Park, w-facing hillside ca. 1 km due E of Sidney Flat Comment
  UC35196  Erodium macrophyllum V. King Chesnut 1888-4-14 Contra Costa Moraga Valley Comment
  UC2032835  Erodium moschatum Doran, Andrew Scott 2012-3-20 705 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  JEPS15863  Eryngium aristulatum var. aristulatum W. L. Jepson 1894-9-7 14282 Contra Costa foot of sharp canyon e. of Bald Peak at Orinda; Berkeley Hills 121 Comment
  UC1191950  Eryngium aristulatum var. aristulatum Peter Kamb, Francia Chisaki, and S. Galen Smith 1951-4-14 1954 Contra Costa 7 mi. n. Walnut Creek (e. of Hwy. 21, 0.2 mi. s. intersection w/ Hwy. 4) Comment
  JEPS111065  Eryngium armatum Lee Echols 2003-6-2 s.n. Contra Costa N of Lark Drive in central portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  CDA9503  Eryngium spinosepalum D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .23 Contra Costa Byron Airport. Comment
  JEPS97706  Eryngium vaseyi Annetta M. Carter, Tom Morley, Malcolm Nobs 1951-3-25 3006 Contra Costa 3.3 mi. S of Byron. Comment
  UC20994  Eryngium vaseyi J. Burtt Davy 1900-3-24 6524 Contra Costa salt marsh near Stege Comment
  SEINET12118291  Eryngium vaseyi var. castrense L. Constance, Alava, R.; Bacigalupi, R. 1958-1 3661 Contra Costa 3 mi SE of Byron, San Joaquin Valley Comment
  CAS-BOT-BC40764  Erysimum capitatum Alice Eastwood 1921-4-18 10285 Contra Costa Antioch. Comment
  CAS-BOT-BC40768  Erysimum capitatum G. B. Rossbach; R. P. Rossbach 1938-6-5 858 a Contra Costa Along tidal estuary of San Joaquin River just east of Antioch. Comment
  UC691082  Erysimum capitatum Mary L. Bowerman 1931-3-7 551 Contra Costa Indian Ceremonial Springs Mount Diablo Comment
  CAS-BOT-BC40756  Erysimum capitatum G. B. Rossbach 1955-3-20 571 Contra Costa Upper south slope of Mount Diablo. 1005 Comment
  NY32657  Erysimum capitatum subsp. angustatum A. A. Heller 1908-4-16 8898 Contra Costa Sand hills east of Antioch. 22.9 Comment
  POM272844  Erysimum capitatum var. angustatum H. L. Mason 1933-4-9 7189 Contra Costa East of Antioch along the San Joaquin River. 12 Comment
  RSA0008584  Erysimum capitatum var. angustatum H. L. Mason 1933-4-9 7189 Contra Costa East of Antioch along the San Joaquin River. 12 Comment
  RSA0008586  Erysimum capitatum var. angustatum James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  POM272910  Erysimum capitatum var. capitatum Lyman Benson 1935-3-16 6261 Contra Costa Mt. Diablo, Watershed: Walnut Creek; Mountain Range: Mt. Diablo. 915 Comment
  UC2028070  Erysimum capitatum var. capitatum Barbara Ertter with Tony Morosco 1998-4-12 16003 Contra Costa Base of Mount Olympia on north side of Mount Diablo, NE of Olympia Trail. Comment
  JEPS111863  Erysimum cheiri D. G. Kelch 2004-4-11 04 .75 Contra Costa Crockett - Crolona Heights Hillside above Rolf Drive. Lower Crolona heights 15 Comment
  CAS-BOT-BC55199  Erysimum repandum Ira L. Wiggins 1930-4-17 4574 Contra Costa Railway right of way 0.25 mile south of Byron. Comment
  SEINET14046171 Image available Erythranthe guttata Lewis S. Rose 1941-1 41064 Contra Costa 2 mi. w. of Byron. 46 Comment
  CAS-BOT-BC402988  Eschscholzia californica James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  CHSC75109  Eschscholzia californica Roger Thom 1987-4-21 6 Contra Costa 3300 block of Johnson Rd. Lafayette. 167 Comment
  UC692105  Eschscholzia californica Mary L. Bowerman 1933-5-3 1973 Contra Costa due s Meridian Peak summit (on hillside above flat); Mount Diablo Comment
  UCD95304  Eschscholzia californica Jennifer Davies 1982-4-11 1 Contra Costa 0.5 mile west of Park HQ on Northgate Road, Mt. Diablo. 670 Comment
  CDA24555  Eschscholzia californica subsp. californica D. G. Kelch 2006-7-14 6 .335 Contra Costa Between Rte 4 and Carbon Rd. E Rodeo. Comment
  RSA39848  Eschscholzia californica var. crocea P. A. Munz 1947-10-8 12190 Contra Costa Antioch 12 Comment
  CAS-BOT-BC91576  Eschscholzia rhombipetala Brandegee 1889-4-1 s.n. Contra Costa Antioch. Comment
  UC2028496  Eucalyptus sideroxylon Barbara Ertter 1999-3-21 16488 Contra Costa NW corner of Miller Knox Regional Shoreline, Protero Hills SW of Richmond Comment
  UC24008  Eucrypta chrysanthemifolia var. chrysanthemifolia Brewer 1866-1 6280 Contra Costa Mount Diablo Comment
  UC24009  Eucrypta chrysanthemifolia var. chrysanthemifolia Jos. Burtt Davy 1901-4-21 6923 Contra Costa Wildcat Canyon Comment
  UC2028112  Eucrypta chrysanthemifolia var. chrysanthemifolia Barbara Ertter with Christopher Baysdorfer 1998-5-10 16110 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, along Ohlone Trail. Comment
  CDA18900  Euphorbia oblongata V. Guise 2000-5-22 PDR 031724 Contra Costa East side of Bollinger Canyon Rd., San Ramon. 0 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
  CAS-BOT-BC202389  Euphorbia ocellata Lewis S. Rose 1953-10-12 53096 Contra Costa Mt. Diablo, west slope 381 Comment
  CAS-BOT-BC202390  Euphorbia ocellata Mary L. Bowerman 1931-8-29 1033 Contra Costa Mount Diablo. North Road 487 Comment
  UC2028025  Euphorbia ocellata subsp. ocellata Barbara Ertter 1997-9-14 15808 Contra Costa West side of Mount Diablo, ponds along Barbeque Terrace Road in upper Pine Canyon. Comment
  UC1818929  Euphorbia spathulata Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14586 Contra Costa East side of Mt. Diablo, access from Morgan Territory Rd. to Prospectors Gap Rd., gate between archery range and private ranch, open oak woodland. Comment
  UC2062607  Euphorbia spathulata Barbara Ertter with Dan Norris 2001-4-8 17590 Contra Costa Lime Ridge Open Space east of Walnut Creek. Comment
  CDA33068  Euthamia occidentalis D. G. Kelch 2010-10-5 10 .42 Contra Costa The Delta; Just east of Antioch bridge. Comment
  JEPS102889  Euthamia occidentalis Barbara Ertter 1998-11-15 16461 Contra Costa Mount Olympia, N face,below Zippe Trail, above quasrried pond Mount Diablo 640 Comment
  CDA37846  Fallopia japonica Fonseca/Niang 2012-7-16 PDR# 1641164 Contra Costa El Sobrante; Circle Dr. 0 Comment
  RSA760667  Festuca William J. Ferlatte, L. Maynard Moe 1970-4-27 1253 Contra Costa San Francisco Bay, Red Rock Island. Comment
  UC692354  Festuca californica Mary L. Bowerman 1935-5-3 2953 Contra Costa hillside below Jungle of the Garden Gods; Mount Diablo, Rock City Ridge 472 Comment
  CAS-BOT-BC278317  Festuca californica subsp. californica Mary L. Bowerman 1931-5-2 788 Contra Costa Mount Diablo. North end of Eagle Point ridge Comment
  UC691232  Festuca elmeri Mary L. Bowerman 1935-5-3 2963 Contra Costa Sloan Road Mount Diablo 487 Comment
  UC2028144  Festuca microstachys Barbara Ertter 1998-4-4 15971 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, Fossil Hill. Comment
  UC2028969  Festuca myuros Barbara Ertter 2003-2-8 18092 a Contra Costa Richmond Field Station (UC-Berkeley). Comment
  CHSC99192  Frankenia salina John Dittes 2006-10-26 1413 Contra Costa San Joaquin Valley (foothills near nw edge); ~ 2.0 air-mile south of Marsh Creek Reservoir Gauging Station, 1.6 air-mile southwest of intersection of Camino Diablo and Vasco Road; Contra Costa Water District's Los Vaqueros Watershed Mitigation Project Area. 67 Comment
  CAS-BOT-BC223392  Fraxinus dipetala H. E. McMinn 1922-10-1 407 Contra Costa Mitchell Canon [Canyon], Mt. Diablo Comment
  UC691869  Fraxinus dipetala Mary L. Bowerman 1930-6-22 363 Contra Costa Mitchell Canyon Mount Diablo 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
  UCD84953  Fritillaria agrestis Chuck Hughes 2010-4-1 225 Contra Costa About 0.6 mile east of Los Vaqueros Road. 305 Comment
  SBBG122904  Fumaria capreolata B. Ertter 1999-3-21 16486 Contra Costa Miller Knox Regional Park near Pt Richmond 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
  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
  UC1948947  Galium aparine William J. Ferlatte, L. Maynard Moe 1970-4-27 1247 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC691538  Galium aparine Mary L. Bowerman 1930-6-10 310 Contra Costa summit Mount Diablo Comment
  UC1614104  Galium californicum Charles M. Belshaw 1935-6-24 786 Contra Costa Bald Peak ca. 1/2 mi. e. Grizzly Peak; Bald Peak Comment
  JEPS14346  Galium murale L. T. Dempster 1956-4-28 1000 Contra Costa between Village and Crossroads (near creek); Orinda Comment
Read comments
Apr 21 2012
  UC2028074  Galium murale Barbara Ertter, Tony Morosco 1998-4-12 15993 Contra Costa Base of Mount Olympia on north side of Mount Diablo, base of quarry NE of Olympia Trail. 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
  UC697199  Gamochaeta ustulata Mary L. Bowerman 1942-6-1 3846 Contra Costa Lower Rock City Camp Mount Diablo Comment
  CAS-BOT-BC200623  Garrya elliptica John Thomas Howell 1926-1-16 1625 Contra Costa Head of San Leandro Canyon, Oakland Hills Comment
  CDA31081  Garrya elliptica D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .217 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  UC565414  Garrya elliptica Chas. M. Belshaw 1935-12-26 1420 Contra Costa upper Redwood Canyon; Oakland and Berkeley Hills Comment
Read comments
Aug 9 2011
  UCD121109  Garrya elliptica Beecher Crampton 1957-11-20 4651 Contra Costa Berkeley Hills. Contra Costa- Alameda County line. Comment
  UCD35543  Garrya elliptica Beecher Crampton 1957-11-20 4651 Contra Costa Berkeley Hills. Contra Costa- Alameda County line. Comment
  CAS-BOT-BC282611  Gastridium phleoides Mary L. Bowerman 1935-7-22 3191 Contra Costa Hidden Pond, Mount Diablo Comment
  POM300684  Gastridium phleoides Mary L. Bowerman 1933-6-14 2272 Contra Costa Curry Cave Canyon: Ridge between two main forks. Mount Diablo. Comment
  UC692386  Gastridium ventricosum Mary L. Bowerman 1935-7-22 3191 Contra Costa Hidden Pond (nw 1/4 S7) Mount Diablo; , Hidden Pond Comment
  JEPS111978  Geranium dissectum D. G. Kelch 2003-3-28 03 .89 Contra Costa Rodeo - Lone Tree Point 2 Comment
  JEPS127101  Geranium dissectum Lowell Ahart, Josephine Guardino 2016-4-19 20776 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
  JEPS75472  Geranium dissectum P. F. Yorks 1974-4-19 132 Contra Costa ca 1.5 km s Bear Creek Road (on Hampton Road, n of Briones Reservoir); Hampton Road Natural Reserve Comment
  UC1057453  Geranium dissectum G. Thomas Robbins 1937-4-25 142 Contra Costa e of La Vista Comment
  UC1300816  Geranium molle Helen K. Sharsmith 1962-4-18 4956 Contra Costa Reliez Valley Road San Francisco Bay Region 152 Comment
  UC2027819  Geranium molle Barbara Ertter with Holly Forbes 1997-4-20 15547 Contra Costa North base of Mount Diablo, trail to Back Creek from Mitchell Canyon trailhead. Comment
  SBBG122899  Geranium rotundifolium B. Ertter 1996-6-4 14684 Contra Costa NE of jct of Grizzly Peak Blvd and Golf Course Drive, Tilden Regional Park Comment
  UC1795111  Geranium rotundifolium Barbara Ertter 1996-6-4 14684 Contra Costa Tilden Regional Park in hills E of Berkeley, restoration site NE of junction of Grizzly Peak Boulevard and Golf Course Drive 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
  SEINET12343273  Gilia Ottley 1920-3-6 210 Contra Costa Black Hills, San Francisco Bay region Comment
  UCD164885  Gilia achilleifolia Henry House 1995-4-30 1995- 10 Contra Costa About 1.2 km west of Walnut Blvd., ca. 0.5 km south of Marsh Creek Rd. 60 Comment
  JEPS69431  Gilia achilleifolia subsp. achilleifolia W. L. Jepson 1899-4-19 15066 Contra Costa Las Trampas Ridge Comment
  UC2031458  Gilia achilleifolia subsp. achilleifolia Barbara Ertter with David Gowen 2014-4-12 21716 Contra Costa On north side of Prospectors Gap Road ca. 1 mile east of Mount Diablo summit Comment
  UC651088  Gilia achilleifolia subsp. achilleifolia P. B. Kennedy 1916-5-21 Contra Costa Diablo and Summit Comment
  JEPS108360  Gilia achilleifolia subsp. achilleifolia David Gowen 2005-4-11 230 Contra Costa Mt. Diablo State Park. Below Devils Elbow in the upper part of Rhine Canyon drainage. Comment
  SBBG28032  Gilia achilleifolia subsp. achilleifolia V. Grant, A. Grant 1948-5-15 8505 Contra Costa Sacramento Northern Railway embankment, Moraga Cyn, Oakland hills Comment
  UC691628  Gilia achilleifolia subsp. achilleifolia Mary L. Bowerman 1935-4-19 2869 a Contra Costa North Road ca 6.5 mi from entrance (Northgate); Mount Diablo 609 Comment
  JEPS69435  Gilia achilleifolia subsp. multicaulis Mary L. Bowerman 1935-4-17 2839 Contra Costa West Road 2 mi from entrance Mount Diablo; , West Road Comment
  RSA67700  Gilia achilleifolia subsp. multicaulis Verne Grant, Alva Grant 1952-5-7 9137 Contra Costa Pioneer Camp, s.w. of Meridian Peak, Mt. Diablo Comment
  SEINET12278771  Gilia capitata H. M. Hall 1901-1 s.n. Contra Costa Region of San Francisco Bay, Mt. Diablo Comment
  UC134012  Gilia capitata subsp. staminea C. F. Baker 1903-4-25 2805 Contra Costa Antioch Comment
  UC402614  Gilia capitata subsp. staminea C. L. Swenson April, 1930 Contra Costa Antioch Comment
  UC903221  Gilia capitata subsp. staminea Ethel Crum 1936-4-5 1746 Contra Costa two mi w Byron; South Coast Ranges, w of Byron 45 Comment
  UC2062648  Gilia capitata subsp. staminea Barbara Ertter with Dan Norris 2001-4-8 17596 Contra Costa Lime Ridge Open Space east of Walnut Creek. Comment
  JEPS99990  Gilia clivorum G. Smick 2003-3-25 GAS 89 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site 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
  UC691608  Gilia clivorum Mary L. Bowerman 1935-5-1 2932 Contra Costa West Road 2 mi from entrance (( = North Road), Mount Diablo); Mount Diablo, West Road (=North Road) 182 Comment
  UC691671  Gilia clivorum Mary L. Bowerman 1931-3-21 604 Contra Costa e end Fossil Ridge , Fossil Ridge, e end (Mount Diablo) Comment
  UC691674  Gilia clivorum Mary L. Bowerman 1935-4-17 2827 Contra Costa West Road 2 mi from entrance (( = North Road), Mount Diablo); Mount Diablo, West Road (=North Road) 237 Comment
  UC691676  Gilia clivorum Mary L. Bowerman 1935-4-26 2920 Contra Costa Summit Mount Diablo Mount Diablo, summit 1158 Comment
  UC908353  Gilia clivorum Herbert L. Mason 1938-5-3 11752 Contra Costa trail between Juniper Camp and Deer Flat (Mount Diablo); , btw Juniper Camp and Deer Flat 990 Comment
  CDA33810  Gilia clivorum D. G. Kelch 2010-5-15 10 .12 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 Comment
  POM300969  Gilia clivorum Mary L. Bowerman 1935-4-19 2858 Contra Costa Near Turtle Rock; Mount Diablo. 457 Comment
  SEINET3696190 Image available Gilia tricolor Lewis S. Rose 1932-3-15 3283 Contra Costa Byron. Comment
  CAS-BOT-BC266489  Githopsis diffusa Alice Eastwood 1915-5-30 s.n. Contra Costa Mount Diablo Comment
  JEPS28828  Githopsis diffusa subsp. robusta L. R. Heckard with P. Silva, R. Tucker 1962-4-22 1302 Contra Costa Lookout Point Picnic Area Mt. Diablo State Park 731 Comment
  UC691590  Githopsis diffusa subsp. robusta Mary L. Bowerman 1933-6-7 2260 Contra Costa North Peak Mount Diablo Comment
  JEPS20443  Gnaphalium palustre W. L. Jepson May 23 1891-May 24 1891 14746 Contra Costa near Mt. Diablo Comment
  UCR197918  Gnaphalium palustre Beecher Crampton 1950-6-20 595 Contra Costa 1 mile north of Richmond, Triangle Court 9 Comment
  CDA34248  Grindelia camporum D. G. Kelch 2009-5-24 9 .303 Contra Costa Carquinez Strait; S of Ozol, W/SW of Martinez. Comment
  RSA93033  Grindelia camporum F. W. Peirson 1923-7-1 3886 Contra Costa Mt. Diablo Comment
  UCD32430  Grindelia camporum Beecher Crampton 1950-6-20 594 Contra Costa Richmond, south of Cutting Blvd, open grassy field immediately adjacent to Carlson Blvd. north of Stege. 15 Comment
  CAS-BOT-BC305246  Grindelia hirsutula L. R. Abrams 1910-10-9 4357 Contra Costa Between San Ramon and Dublin Comment
  JEPS41884  Grindelia hirsutula W. L. Jepson 1895-9-14 Contra Costa Walnut Creek Comment
  UC1042334  Grindelia hirsutula Lewis S. Rose 1952-11-26 52020 Contra Costa Pittsburg 3 Comment
  UC1118567  Grindelia hirsutula C. M. Belshaw 1936-5-15 2127 Contra Costa 2 1/2 mi nw Lone Tree Valley; Mt. Diablo Quad. Comment
  UC1599357  Grindelia hirsutula G. Thomas Robbins 1959-4-26 4003 Contra Costa just n Richmond-San Rafael Bridge (above shore of San Francisco Bay, s of Castro Pt.); Richmond, Potrero Hills Comment
  UC2042497  Grindelia hirsutula Barbara Keller 2007-7-10 Contra Costa Mt. Diablo State Park, along Summit Rd. Comment
  CAS-BOT-BC305238  Grindelia hirsutula W. I. Follett; E. Follett 1981-6-22 s.n. Contra Costa North and east side of Bald Peak, San Pablo Ridge 548 Comment
  CAS-BOT-BC305240  Grindelia hirsutula John Thomas Howell 1929-9-21 4387 Contra Costa 4 miles west of Clayton Comment
  UCD35139  Grindelia robusta Beecher Crampton 1950-6-20 594 Contra Costa Richmond Comment
  UC10934  Guillenia flavescens W. H. Brewer Contra Costa near Mt. Diablo Comment
  UC137040  Guillenia flavescens Katharine Brandegee 1907-5-4 Contra Costa between Antioch and Marsh Creek Comment
  UC2028110  Hainardia cylindrica Barbara Ertter with Christopher Baysdorfer 1998-5-10 16112 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, of Ohlone Trail. Comment
  SEINET11849272  Haplopappus parishii C. W. Sharsmith 1933-1 474 A Contra Costa adjacent to San Pablo Bay, near Carquinez Straits Comment
  UC1050778  Hebe laevis N. Floy Bracelin 1943-6-6 2147 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  CDA6433  Helenium puberulum T. C. Fuller 1958-7-3 1270 -58 Contra Costa Carquinez Strait; Highway 4, 4 miles west of Martinez. 0 Comment
  CAS-BOT-BC314697  Helianthella californica var. californica Paul F. Covel 1936-4-19 233 Contra Costa Hilltop above L. Trampas Cn. Comment
  CAS-BOT-BC305328  Helianthella castanea John Thomas Howell 1931-5-12 6475 Contra Costa Nortonville Comment
  RSA8535  Helianthella castanea J. T. Howell 1933-5-14 11282 Contra Costa Hills east of St. Mary's college Comment
  UC1819046  Helianthella castanea Barbara Ertter, Lisa Schultheis 1995-4-27 14016 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
  UC194921  Helianthella castanea H. M. Hall 1916-5-31 10137 Contra Costa n slope of summit Mt. Diablo 1158 Comment
  UC194924  Helianthella castanea H. M. Hall 1916-5-31 10137 b Contra Costa exposed flat on s side Mt. Diablo 1066 Comment
  CAS-BOT-BC223918  Helianthemum scoparium Mary L. Bowerman 1932-4-9 1332 Contra Costa Mount Diablo. Ridge to Wall Point, from near Rock City Comment
  CAS-BOT-BC305372  Helianthus annuus Brandegee No date on label s.n. Contra Costa Antioch Comment
  JEPS99485  Helianthus gracilentus Mary Bowerman 1995-5-21 Contra Costa Mount Diblo. Wall Pt. Trail ca. 1/2 mi. E of Wall Pt. 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
  UC1050190 Image available Helleborus orientalis var. atrorubens N. Floy Bracelin 1945-3-11 2410 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC691497  Helminthotheca echioides Mary L. Bowerman 1936-8-8 3524 Contra Costa w fork Diablo Stock Farm Canyon (= Emmons Cayon, Wattis Ranch); Mount Diablo, Diablo Stock Farm (Wattis Ranch) Canyon, w for Comment
  UC197525  Hemizonia congesta subsp. lutescens H. M. Hall 1914-9-13 9875 Contra Costa n of San Pablo Comment
  CAS-BOT-BC306263  Hemizonia congesta subsp. lutescens H. M. Hall 1914-9-13 9877 Contra Costa Easterly shores of San Francisco Bay near San Pablo Comment
  CAS-BOT-BC314857  Hemizonia congesta subsp. luzulifolia R. F. Hoover 1937-9-2 s.n. Contra Costa Walnut Creek Comment
  CDA7025  Hemizonia congesta subsp. luzulifolia D. G. Kelch, A. G. Murdock 2004-7-9 4 .294 Contra Costa Carquinez Strait Region; Crockett - Carquinez Scenic Drive. East of Crockett West of Bull Valley SA. Comment
  UC201238  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-24 10253 Contra Costa Richmond Region of San Francisco Bay, Richmond Comment
  CAS-BOT-BC314849  Hemizonia congesta subsp. luzulifolia Barrett Anderson 1987-7-23 3565 Contra Costa Building site on San Pablo Roa at Garrity Creek, Pinole 45 Comment
  CAS-BOT-BC314854  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1910-10-9 4358 Contra Costa Between San Ramon and Dublin Comment
  CAS-BOT-BC314872  Hemizonia congesta subsp. luzulifolia D. E. Breedlove 1969-10-18 16707 Contra Costa Along the roadbank on Deer Hill Road near the junction with Happy Valley Road, Lafayette Comment
  UC990629  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1909-9-24 Contra Costa San Ramon Road above Hayward (canyon) 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
  POM301046  Hemizonia fitchii Mary L. Bowerman 1936-9-17 3548 Contra Costa North Road 2.5 miles from North Gate. 244 Comment
  SEINET3387003 Image available Hemizonia heermannii Lewis S. Rose 1933-10-22 33387 Contra Costa Wildcat Canyon. Comment
  CAS-BOT-BC33236  Hemizonia kelloggii Albert Kellogg 1870-4-22 s.n. Contra Costa near Antioch Comment
  RSA81676  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1909-9-24 s.n. Contra Costa San Ramon Road, above Hayward. Comment
  RSA81667  Hemizonia parryi subsp. congdonii James I. McMurphy 1909-9-24 s.n. Contra Costa San Ramon Comment
  UC2028417  Heracleum maximum Barbara Ertter with John Ginochio and Mary Bowerman 2001-5-8 17634 Contra Costa Northwest flank of Mount Diablo, headwaters of Arroyo del Cerro between Olofson Ridge and Long Ridge Comment
  UCD127538  Heracleum maximum R. Tofsrud 1948-1 s.n. Contra Costa Exact location unknonw. Comment
  CAS-BOT-BC310161  Hesperevax caulescens Dr. A. Kellogg; W. G. W. Harford 1868-1-1 419 Contra Costa Antioch Comment
  JEPS33797  Hesperevax sparsiflora W. L. Jepson 1923-4-22 9864 Contra Costa Mt. Diablo Comment
  UC1618408  Hesperevax sparsiflora var. sparsiflora Barbara Ertter, Chris Thayer 1993-5-7 11709 Contra Costa 1/2 mi n of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land e of Tilden Park 457 Comment
  JEPS23520  Hesperocnide tenella Edw. L. Greene Apr., 1889 Contra Costa Pinole Canyon Comment
  CAS-BOT-BC167437  Hesperolinon breweri A. D. E. Elmer 1903-7-1 4545 Contra Costa Mount Diablo Comment
  UC311528  Hesperolinon breweri A. D. E. Elmer July, 1903 4545 Contra Costa Mount Diablo Comment
  CAS-BOT-BC167434  Hesperolinon breweri Mrs. K. Brandegee 1907-6-16 s.n. Contra Costa Hills between Antioch and Marsh Creek, on the easterly side of Mt. Diablo Comment
  CAS-BOT-BC167443  Hesperolinon breweri Mary L. Bowerman 1933-6-7 2254 Contra Costa North Peak Ridge, exposure south. Mount Diablo 1005 Comment
  UC1058216  Hesperolinon breweri W. H. Brewer May 29 1862-Jan 1 1900 1181 Contra Costa Camp 71 Mount Diablo Range, Marsh's Ranch Comment
  UC692699  Hesperolinon californicum Mary L. Bowerman 1931-5-21 886 Contra Costa w Cave Point; Mount Diablo 579 Comment
  UC692700  Hesperolinon californicum Mary L. Bowerman 1933-6-14 2275 Contra Costa Inner Black Hills e Knobcone Point; Mount Diablo Comment
  UC2028268  Hesperolinon californicum Barbara Ertter 1999-6-12 16709 Contra Costa Black Hawk Ridge Road between Knobcone Point Road and NE fork of Sycamore Creek, South side of Mount Diablo. Comment
  CAS-BOT-BC422499  Hesperomecon linearis Alice Eastwood 1921-4-18 10293 Contra Costa Antioch Comment
  JEPS111693  Heterotheca grandiflora D. G. Kelch 2004-4-3 04 .52 Contra Costa Martinez - Vine Hill West of 680. North of highway 4. 44 Comment
  JEPS20381  Heterotheca grandiflora Joseph P. Tracy 1932-9-10 10783 Contra Costa e of Pinole (on Franklin Canyon Road); Rodeo Creek 91 Comment
  UCD150891  Heterotheca grandiflora James A. Neilson Jr. 1972-11-2 3678 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  RSA0074383  Heterotheca grandiflora Peter Rubtzoff 1951-10-7 823 Contra Costa Sand dunes along lower San Joaquin River, east of Antioch. Comment
  JEPS79318  Heterotheca sessiliflora subsp. echioides Edward Lee with Annetta Carter 1935-8-17 1624 Contra Costa Antioch; sand-dunes Comment
  UC691817  Heterotheca sessiliflora subsp. echioides Mary L. Bowerman 1930-12-2 501 Contra Costa near base Mount Zion; Mount Diablo Comment
  UC2012984  Heterotheca sessiliflora subsp. echioides Barbara Ertter with Lisa Schultheis 1996-9-2 15275 Contra Costa South side of Mount Diablo, west end of Blackhawk Ridge. Comment
  UC2028022  Heterotheca sessiliflora subsp. echioides Barbara Ertter 1997-9-14 15812 Contra Costa Southwest side of Mount Diablo, Secret Trail at head of Pine Canyon. Comment
  UC692351  Heuchera micrantha var. erubescens Mary L. Bowerman 1931-4-18 718 Contra Costa Sycamore Canyon 335 Comment
  CAS-BOT-BC424186  Heuchera micrantha var. hartwegii L. R. Abrams 1921-5-25 8056 Contra Costa 4 1.2 mi from summit Mt Diablo Comment
  CDA15278  Hirschfeldia incana G. F. Hrusa, D. Crowe, R. York 1998-7-17 14715 Contra Costa Sacramento Delta; E end of Dow Chemical property at Pittsburg. Comment
  UCD84891  Holcus mollis David L. Hanson 1978-3-7 s.n. Contra Costa Contra Costa County. Comment
  CAS-BOT-BC325837  Holocarpha heermannii Joseph Andorfer Ewan 1933-10-15 8045 Contra Costa Mt. Diablo 1066 Comment
  CDA8362  Holocarpha heermannii D. G. Kelch, A. G. Murdock, M. K. Herzenach 2004-9-2 4 .329 Contra Costa Carquinez Strait; Near Summit of Mckewan Rd between Port Costa and I-4. Comment
  JEPS111679  Holocarpha heermannii D. G. Kelch 2003-8-13 03 .129 Contra Costa Pig Sale 250 Comment
  JEPS13469  Holocarpha heermannii W. L. Jepson 1895-9-14 Contra Costa Walnut Creek Comment
  SBBG33459  Holocarpha heermannii A. D. E. Elmer -Jul-1903 Contra Costa Mount Diablo Comment
  CAS-BOT-BC325843  Holocarpha heermannii David D. Keck 1933-10-28 2605 Contra Costa 4.5 mi. SE of Martinez on road to Pacheco Comment
  POM360676  Holocarpha heermannii L. S. Rose 1932-10-2 32667 Contra Costa Walnut Creek. Comment
  RSA298252  Holocarpha heermannii Joseph A. Ewan 1933-10-15 8045 Contra Costa South slope of Mt. Diablo 1067 Comment
  UC2012985  Holocarpha heermannii Barbara Ertter with Lisa Schultheis 1996-9-2 15276 Contra Costa South side of Mount Diablo, west end of Blackhawk Ridge. Comment
  CAS-BOT-BC320226  Holocarpha macradenia David J. Powers 1974-10-6 1001 Contra Costa 100-400 feet east of highway 80, and 100-300 yards south of Appian Way, Pinole Comment
  CAS-BOT-BC320220  Holocarpha macradenia Walter Knight; Irja Knight 1978-8-8 3101 Contra Costa On s.e. corner of Interstate 80 and Appian Way. [1 mi. n. of El Sobrante] Comment
  CAS-BOT-BC320261  Holocarpha obconica John Thomas Howell 1930-9-28 5500 Contra Costa 6.3 miles from Byron on the Marsh Creek Road Comment
  JEPS25273  Holocarpha obconica G. Thomas Robbins 1959-9-6 4160 Contra Costa 0.6 mi e of junction with Marsh Creek Road; Vasco Road 70 Comment
  UC1357615  Holocarpha obconica R. F. Hoover 1965-9-24 9649 Contra Costa foothills w Byron (between Kellogg and Marsh Creeks) Comment
  CAS-BOT-BC320253  Holocarpha obconica David D. Keck 1933-11-2 2621 Contra Costa Deer Valley, 1/2 mi. S. of road to Brentwood 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
  CAS-BOT-BC320329  Holocarpha virgata John Thomas Howell 1930-9-28 5502 Contra Costa 5.4 miles from Byron, on Marsh Creek Road Comment
  CAS-BOT-BC320330  Holocarpha virgata H. M. Hall 1930-9-24 12888 Contra Costa Vasco Road, southeast of Mount Diablo Comment
  LA203994  Holocarpha virgata John Thomas Howell; 1930-9-28 5501 Contra Costa on the Marsh Creek Road, 5.4 mi. from Byron Comment
  POM360683  Holocarpha virgata subsp. virgata L. S. Rose 1932-10-2 32654 Contra Costa Marsh Creek Road. Comment
  RSA94065  Holocarpha virgata subsp. virgata J. T. Howell 1930-9-28 5501 Contra Costa 5.4 miles from Byron on Marsh Creek Road. Comment
  UC2029132  Holocarpha virgata subsp. virgata Barbara Ertter with David Gowen and Mike Park 2004-6-13 18372 Contra Costa Black Diamond Mines Regional Preserve, forks of Old Homestead Loop Trail. Comment
  JEPS112072  Holodiscus discolor A. G. Murdock 2004-5-28 274 Contra Costa Pinole Peak 205 Comment
  RSA449754  Holodiscus discolor Thekla Mohr 1917-07 3255 Contra Costa Mount Diablo Comment
  RSA449755  Holodiscus discolor Bonnie C. Templeton 1962-6-10 s.n. Contra Costa Mt Diablo. Comment
  UC12336  Holodiscus discolor Ivar Tidestrom 1895-6-1 Contra Costa Crockett Comment
  JEPS100015  Hordeum brachyantherum S. O'Neil 2003-5-8 SEO 34 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  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
  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
  UC692426  Hordeum marinum subsp. gussoneanum Mary L. Bowerman 1931-5-13 846 Contra Costa Pine Canyon floor slightly more than a mi above the Sulphur Spring (Mount Diablo); , Pine Canyon Floor Comment
  CAS-BOT-BC289558  Hordeum marinum subsp. gussoneanum Peter H. Raven; G. Thomas Robbins 1956-4-28 9044 Contra Costa In a low filed jsut east of junction to Martinez along State Highway 4 Comment
  CAS-BOT-BC289562  Hordeum marinum subsp. gussoneanum Mary L. Bowerman 1931-5-13 846 Contra Costa Pine Canyon floor slightly more than a mile above the sulphur spring, Mount Diablo Comment
  POM205088  Hordeum murinum subsp. glaucum Jos Burtt Davy 1898-05 1730 Contra Costa Danville Comment
  UC691183  Hordeum murinum subsp. glaucum Mary L. Bowerman 1933-5-25 2188 Contra Costa w end s face Oyster Ridge (Mount Diablo); , w end s face Oyster Ridge 396 Comment
  CAS-BOT-BC284777  Hordeum murinum subsp. glaucum Mary L. Bowerman 1933-4-15 1845 Contra Costa Mount Diablo. Canyon south of Arroyo del Cerro Comment
  UC691092  Horkelia californica subsp. dissita Mary L. Bowerman 1930-6-28 404 Contra Costa Mount Diablo, Lower Silver Spring Comment
  UC691097  Horkelia californica subsp. dissita Mary L. Bowerman 1938-6-14 3684 Contra Costa Mt. Diablo, Rocky Point Spring 701 Comment
  UC723810  Horkelia californica subsp. frondosa Joseph Andorfer Ewan 1934-5-20 8926 Contra Costa n. side Mt. Diablo Mt. Diablo; , Russelmann Park Comment
  UC2062668  Horkelia californica subsp. frondosa Barbara Ertter 2002-8-24 18015 Contra Costa East end of Olympia Trail on NE side of Mount Diablo, at junction with uphill trail near intersection of Marsh Creek Road and Morgan Territory Road. Comment
  CAS-BOT-BC532052  Horkelia californica var. frondosa Joseph Andorfer Ewan 1934-5-20 8926 Contra Costa Russelmann Park, n. side Mt. Diablo Comment
  CAS-BOT-BC532055  Horkelia californica var. frondosa Mary L. Bowerman 1933-5-16 2996 Contra Costa Mount Diablo, Russelman Park, just south of the north boundary of sec. 25 396 Comment
  CDA24877  Hornungia procumbens Jim Jokerst 1989-3-28 3057 Contra Costa Northwest of junction Byron Hot Springs Road and Armstrong Road, northeast of Livermore. 0 Comment
  CAS-BOT-BC206139  Hosackia crassifolia Rimo Bacigalupi 1926-4-30 1350 Contra Costa Summit of Mt. Diablo Comment
  UC24109  Hydrophyllum occidentale State Survey 1800-1 1176 Contra Costa Mt. Diablo summit; Mt. Diablo Comment
  UC691695  Hydrophyllum occidentale Mary L. Bowerman 1931-4-25 770 Contra Costa Mount Diablo summit; Mount Diablo Comment
  UC692603  Hypericum formosum var. scouleri Mary L. Bowerman 1930-6-28 395 Contra Costa Mt. Diablo, Lower Silver Spring 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
  UC55118  Hypochaeris glabra H. M. Hall 1901-4-5 1730 Contra Costa Mt. Diablo 527 Comment
  UC691452  Hypochaeris glabra Mary L. Bowerman 1931-4-11 691 Contra Costa Pine Canyon 121 Comment
  CAS-BOT-BC312937  Hypochaeris glabra Ira L. Wiggins 1930-4-18 4596 Contra Costa Levee at east end of Jersey Island Comment
  RSA0013874  Ibicella lutea G. Thomas Robbins 1959-8-1 4114 Contra Costa Recently completed frontage road just south of Mt. Diablo Blvd. (about 0.5 mi. E of concrete bridge at Charles Hill and about 0.2 mi. W of junction of Hidden Valley Road), about 2 mi. W of Lafayette. 145 Comment
  JEPS77005  Iris douglasiana Robert M. Lloyd 1963-3-17 2134 Contra Costa 0.5 mi e intersection of Grizzly Peak Road and Skyline Drive (on Skyline (across from 7090 Skyline), Huckleberry trail) Comment
  UC1789185  Iris foetidissima Barbara Ertter 2000-5-20 17025 Contra Costa Sibley Volcanic Regional Preserve, Oakland Hills, trail on ridge behind interpretative center. Comment
  UC4288  Iris longipetala J. Burtt Davy April, 1897 Contra Costa Point Isabel Comment
  UC2028408  Iris pseudacorus Barbara Ertter with Richard K. Brummitt 1998-5-16 16096 Contra Costa Antioch Marina, edge of brackish marsh Comment
  UC2029193  Iris pseudacorus Barbara Ertter 2000-7-16 17381 Contra Costa Diablo Foothills Regional Park, riparian strip along Pine Creek between Castle Rock Regional Recreation Area Comment
  UC692078  Isoetes howellii Mary L. Bowerman 1935-7-22 3187 Contra Costa s. side Meridian Peak (Hidden Pond); Mt. Diablo, Hidden Pond 518 Comment
  JEPS22099  Iva axillaris subsp. robustior G. Thomas Robbins 1958-7-19 3909 Contra Costa at edge of rock quarry on hills above and just s Castro Pt.; San Francisco Bay, Richmond Comment
  JEPS46453  Juglans californica W. L. Jepson 1901-10-13 Contra Costa near Lafayette 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
  JEPS8845  Juglans californica var. hindsii Rimo Bacigalupi with C. Ritchie Bell 1951-4-13 3253 Contra Costa along creek 1 1/4 mi ne St. Mary's College; Los Trampas Creek 167 Comment
  CAS-BOT-BC102307  Juglans hindsii Mary L. Bowerman 1936-5-6 3412 Contra Costa Mitchell Canyon floor 259 Comment
  CDA9514  Juncus acuminatus D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .241 Contra Costa CA Delta; Along Clifton Court Near Clifton Court Forebay. Comment
  UC2029189  Juncus balticus Barbara Ertter with Brad Olson et al. 2000-6-2 17308 Contra Costa Brushy Peal Regional Preserve NE of Livermore Comment
  JEPS116854  Juncus bufonius var. bufonius David Gowen 2007-4-16 676 Contra Costa Briones Regional Park in the northern Maricich Lagoon. Comment
  UC2028165  Juncus bufonius var. bufonius Barbara Ertter 1998-5-3 16078 a Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, near Wall Point. Comment
  UC2028973  Juncus bufonius var. bufonius Barbara Ertter with Brad Olson et al. 2000-6-2 17300 Contra Costa north side Brushy Peak Regional Preserve NE of Livermore. Comment
  UC1818867  Juncus bufonius var. congestus Barbara Ertter, Kristin Ertter 1995-7-11 14476 Contra Costa Sulfur Spring on Pine Cr, Diablo Foothills Regional Park SW of Walnut Creek; marshy wet ground. 121 Comment
  RSA722467  Juncus gerardi Barbara Ertter, Steve Matson 2003-5-31 18175 Contra Costa Martinez Regional Shoreline, brackish marsh along Pickleweed Trail west of Arch Bridge. Comment
  JEPS96253  Juncus occidentalis Barbara Ertter, Brad Olson 1991-11-10 10887 Contra Costa Point San Pablo in extreme west Richmond, behind yacht harbor Point San Pablo; Richmond, Point San Pablo Comment
  UC2013049  Juncus occidentalis Barbara Ertter with Lisa Schultheis 1996-9-2 15274 Contra Costa South side Mount Diablo, short distance down trail to Oyster point from Blackhawk Ridge road junction. Comment
  UC691915  Juncus patens Mary L. Bowerman 1933-11-9 2469 Contra Costa West Sheepherders' Spring Mount Diablo 701 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
  UC1157920  Juncus xiphioides Olive Dyer 1936-9-18 444 Contra Costa near Alvarado Park; Wildcat Canyon Comment
  UC1601855  Juncus xiphioides J. Burtt Davy 1897-9-4 4076 Contra Costa Stege Comment
  UC1818996  Juncus xiphioides Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14630 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
  UC2670  Juncus xiphioides W. H. Brewer 1861-9-25 838 Contra Costa halfway up Monte Diablo from Mission San Jose; Mount Diablo Comment
Read comments
Jan 15 2012
  CAS-BOT-BC80924  Juniperus californica John Thomas Howell 1923-11-13 239 Contra Costa Mt. Diablo 914 Comment
  RSA123532  Juniperus californica R. C. Wilson 1935-3-29 150 Contra Costa 1 mile southwest of Mt. Diablo Comment
  CAS-BOT-BC235873  Keckiella corymbosa H. E. McMinn 1922-6-2 97 Contra Costa Near summit of Mt. Diablo Comment
  JEPS71238  Koeleria macrantha Mary L. Bowerman 1931-5-2 796 Contra Costa upper end of canyon, 2 n ridges, Eagle Pt. Ridge Mt. Diablo; , 2 n ridges, Eagle Pt. Ridge Comment
  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
  UC692396  Koeleria macrantha Mary L. Bowerman 1935-5-22 3036 Contra Costa Eagle Point ridge, canyon at n end which heads into saddle w of Twin Peaks, little above the canyon bottom Mount Diablo; , Eagle Point ridge 304 Comment
  POM300737  Koeleria macrantha Mary L. Bowerman 1935-5-8 2974 a Contra Costa Knoll on spur south of Pioneer Camp. (20 feet higher than the upper edge of the chaparral) 762 Comment
  CAS-BOT-BC273616  Koeleria pyramidata Virginia E. Long 1933-6-14 223 a Contra Costa Mt. Diablo. Between Curry-Cave trail canyon and W. fork 457 Comment
  UC691804  Lactuca saligna Mary L. Bowerman 1932-11-26 1676 Contra Costa Maple Spring; Mount Diablo Comment
  JEPS75560  Lactuca virosa P. F. Yorks 1975-9-18 496 Contra Costa 1.9 km s Bear Creek Road (on Hampton Road in Hampton Road Natural Reserve, n of Briones Reservoir); Hampton Road Natural Reserve 200 Comment
  CAS-BOT-BC340698  Lactuca virosa John Thomas Howell 1942-7-19 17040 Contra Costa Along trail west of Deer Flat, Mt. Diablo Comment
  CAS-BOT-BC340700  Lactuca virosa John Thomas Howell 1943-8-22 19310 Contra Costa Near head of San Leandro Creek Canyon 243 Comment
  UC691444  Lactuca virosa J. T. Howell 1942-7-1 17040 Contra Costa Comment
  JEPS99988  Lamarckia aurea G. Smick 2003-4-22 GAS 140 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2043144  Lamium amplexicaule Barbara Ertter with David Gowen 2015-2-22 22228 Contra Costa Green Ranch area on Mount Diablo SE of summit, between Green Ranch Road and Alder Creek. Comment
  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
  CAS-BOT-BC337974  Lasthenia californica Alice Eastwood 1923-5-4 11688 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC337980  Lasthenia californica James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  CDA8107  Lasthenia californica D. G. Kelch 1992-3-21 1827 -A Contra Costa 2.5 mi. SE of Byron; along RR tracks, N of junction of Holey Rd. and Byron Hwy. 0 Comment
  RSA55168  Lasthenia californica C. F. Baker 1903-4-28 2829 Contra Costa Marsh Creek, Mt. Diablo. Comment
  UC135346  Lasthenia californica subsp. californica C. F. Baker 1903-4-28 2829 Contra Costa Marsh Creek Mt. Diablo Comment
  UC1614101  Lasthenia californica subsp. californica Charles M. Belshaw 1935-6-24 783 Contra Costa 0.5 mi. e. Grizzly Peak (n.-face Bald Peak); Bald peak Comment
  UC33074  Lasthenia conjugens J. Burtt Davy 1895-4-7 968 Contra Costa Antioch; ; Antioch, Contra Costa Co. Comment
  CAS-BOT-BC324463  Lasthenia conjugens Milo S. Baker 1946-4-20 11330 Contra Costa Near Concord Comment
  UC1363770  Lasthenia ferrisiae Robert Ornduff 1958-4-23 4945 Contra Costa 0.9 mi e junction of Bixler Road and Highway 4 (n of Hwy 4, n of Byron) Comment
  CAS-BOT-BC353333  Lasthenia fremontii Robert F. Hoover 1937-5-14 2118 Contra Costa Byron Hot Springs. Comment
  CDA8115  Lasthenia fremontii D. G. Kelch 1992-3-21 1826 -A Contra Costa 2.5 mi. SE of Byron; along RR tracks, N of junction of Holey Rd. and Byron Hwy. 0 Comment
  UC194265  Lasthenia glaberrima Edward Lee Greene 1886-5-24 Contra Costa Mt. Diablo Comment
  UC2070575  Lasthenia glaberrima Barbara Ertter with Kevin Hintsa et al. 2003-4-20 18158 Contra Costa Lower Turtle Rock Ponds in Pine Canyon, west side of Mount Diablo, NE side of Barbeque Terrace Road. Comment
  JEPS17268  Lasthenia glabrata subsp. glabrata R. F. Hoover 1936-4-16 974 Contra Costa e slope Bald Peak Comment
  SBBG122952  Lasthenia glabrata subsp. glabrata B. Ertter, C. Thayer 1993-5-7 11705 Contra Costa ca. 0.5 mi N of Vollmer Peak, East Bay Municpal Utilities District land E of Tilden Park 457 Comment
  UC697159  Lasthenia glabrata subsp. glabrata Mary L. Bowerman 1933-4-15 1865 Contra Costa Comment
  JEPS10186  Lasthenia gracilis W. L. Jepson 1925-4-26 10684 Contra Costa sw Mount Diablo; Black Hills Comment
  JEPS89771  Lasthenia gracilis Dean William Taylor 991 Contra Costa along Byron Road (J4) at the junction of Holley Road; Byron Road 15 Comment
  UC30435  Lasthenia gracilis Jos. Burtt Davy 1895-4-7 891 Contra Costa Antioch Comment
  UC130780  Lasthenia minor T. S. Brandegee 1892-5-1 Contra Costa Antioch Comment
  UC30474  Lasthenia minor Jos. Burtt Davy 1895-4-7 937 Contra Costa Antioch Comment
  CAS-BOT-BC366306  Lasthenia minor J. T. Howell 1933-3-29 10895 Contra Costa Nortonville Comment
  POM181471  Lasthenia minor I. L. Wiggins 1930-4-17 4556 Contra Costa 1 mile E of Mountain House on road to Byron Comment
  RSA138191  Lathyrus jepsonii subsp. californicus Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley. Comment
  CAS-BOT-BC205014  Lathyrus jepsonii var. jepsonii Walter Knight; Irja Knight; John Thomas Howell; Elizabeth McClintock; Stephen P. Rae; Bob Doyle 1978-9-5 3227 Contra Costa Botany Cove, Browns Island, delta region of the San Joaquin River Comment
  JEPS64867  Lathyrus jepsonii var. jepsonii W. L. Jepson 1937-7-2 18448 Contra Costa 0.5 mi w Crockett; Carquinez Straits Comment
Read comments
Jan 2 2016
  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
  UC2029076  Lathyrus latifolius Barbara Ertter 2000-7-16 17404 Contra Costa Pine Creek on NW base of Mount Diablo, Stage Road at Pine Pond. Comment
  CHSC39488  Lathyrus sulphureus Tyler Williams; V. Oswald 1984-4-18 21 Contra Costa Mt. Diablo. Ca. 5 yd e of turnout on Summit Rd., 0.1 mi e of Junction Ranger Station in Mount Diablo State Park. 609 Comment
  SEINET12163679  Lathyrus vestitus subsp. bolanderi W. Knight, Knight, I. 1983-1 4773 Contra Costa Tilden Regional Park Comment
  JEPS55376  Lathyrus vestitus var. vestitus W. L. Jepson 1925-4-26 10692 Contra Costa Black Hills Mt. Diablo Comment
  JEPS99994  Lathyrus vestitus var. vestitus G. Smick 2003-3-13 GAS 70 Contra Costa Mt. Wanda, Martinez, John Muir National Historic Site. Comment
  JEPS100063  Lavatera cretica A. Langston 2003-7-7 AL 59 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1618178  Lavatera cretica Barbara Ertter 1991-5-12 9813 Contra Costa sw corner El Cerrito (Point Isabel Regional Shoreline, on San Francisco Bay); San Francisco Bay, Point Isabel Regional Shoreline Comment
  CAS-BOT-BC323926  Layia chrysanthemoides Alice Eastwood 1914-3-14 3820 Contra Costa Byron Springs Comment
  JEPS111657  Layia chrysanthemoides A. G. Murdock 2004-3-19 227 Contra Costa Hercules - Carbon 50 Comment
  UC30593  Layia chrysanthemoides Harley P. Chandler 1901-3-22 879 Contra Costa Rodeo Canyon San Francisco Bay Region, Rodeo Canyon Comment
  UC89157  Layia chrysanthemoides T. S. Brandegee 1885-5-1 Contra Costa Antioch Comment
  CAS-BOT-BC323907  Layia chrysanthemoides Brandegee no date on sheet s.n. Contra Costa Antioch Comment
  CAS-BOT-BC321747  Layia gaillardioides M. K. Curran 1884-1-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC321763  Layia gaillardioides Joseph Andorfer Ewan 1936-4-15 9444 Contra Costa E. slope Bald Peak, San Pablo Ridge 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
  POM361662  Layia glandulosa H. de Forest 1930-4-6 s.n. Contra Costa SE of Mortoville, Small 'coal mine' ravine. Comment
  UC468839  Layia glandulosa W. C. Blasdale 1893-5-13 Contra Costa Comment
  CDA10019  Layia hieracioides D. G. Kelch 2007-6-3 7 .429 Contra Costa East Bay; Along gated portion of Hampton Rd N of San Pablo Reservoir. Comment
  CAS-BOT-BC327248  Layia hieracioides David D. Keck 1941-6-5 5307 Contra Costa Berkeley Hills, Fish Creek Rd., 0.25 mi W of E. portal of Broadway Tunnel 335 Comment
  RSA34206  Layia hieracioides D. D. Keck 1941-6-5 5307 Contra Costa Berkeley Hills, Fish Creek Road 1/4 mile W of E portal of Broadway Tunnel. 335 Comment
  CAS-BOT-BC327698  Layia pentachaeta Brandegee no date on sheet s.n. Contra Costa Antioch Comment
  SBBG28031  Layia platyglossa L. S. Rose 1933-4-17 33093 Contra Costa Antioch Comment
  UC518017  Layia platyglossa Lewis S. Rose 1933-4-17 33093 Contra Costa Antioch Comment
  UC691492  Layia platyglossa Mary L. Bowerman 1933-5-2 1965 Contra Costa below and a little w Pioneer Camp; Mount Diablo Comment
  UC828944  Layia platyglossa Lewis S. Rose 1933-4-17 33093 Contra Costa Antioch Comment
  CAS-BOT-BC274326  Leersia oryzoides Brian Atwater 1978-10-24 BA- 173 Contra Costa Between Bethel Island and Holland Tract 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
  UC1607680  Lemna minuscula Barbara Ertter, Chris Thayer 1993-5-7 11690 Contra Costa Hopkins Spring 1/2 mi se of Inspiration Point (on Wildcat Canyon Road, East Bay Municipal Utilities District land e of Tilden Park); Hopkins Spring, Wildcat Canyon Road 304 Comment
  CAS-BOT-BC215741  Lepechinia calycina Mary L. Bowerman 1932-9-3 1532 Contra Costa Muir Area, Mt. Diablo Comment
  JEPS78824  Lepechinia calycina Edward Lee 1936-5-24 2166 Contra Costa 10 mi from Marsh Creek Road (Morgan Territory); Morgan Territory Comment
  JEPS78825  Lepechinia calycina Edward Lee 1936-5-24 2166 Contra Costa 10 miles from Marsh Creek Road, Morgan Territory Comment
  RSA83333  Lepechinia calycina F. W. Peirson 1923-7-1 3832 Contra Costa Mt. Diablo Comment
  UC691400  Lepechinia calycina Mary L. Bowerman 1938-5-28 3648 Contra Costa Mount Diablo 853 Comment
  CAS-BOT-BC88707  Lepidium acutidens Annetta Mary Carter 1935-3-10 753 Contra Costa Kirker Pass road, south of junction with Nortonville road. 121 Comment
  UC518001  Lepidium dictyotum var. acutidens Lewis S. Rose 1933-3-29 33041 Contra Costa Nortonville Comment
  UC856365  Lepidium dictyotum var. acutidens Lewis S. Rose 1937-3-26 37012 Contra Costa Byron 7 Comment
  CHSC67908  Lepidium dictyotum var. dictyotum James D. Jokerst 1989-3-29 3073 Contra Costa Byron Hot Springs area NE of Livermore, adjacent to pipeline on terrace S of ephemeral creek. Comment
  CAS-BOT-BC89715  Lepidium latifolium Walter Knight; Joanne Dean 1978-8-14 3170 Contra Costa Brown Island. Comment
  UC1606361  Lepidium latifolium Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10717 Contra Costa n of Pittsburg (w-most point opposite Pittsburg marina, near confluence of Sacramento and San Joaquin rivers); Browns Island Comment
  SEINET11983327  Lepidium latipes F. Chisaki, Bacigalupi, R. C.; Robbins, G. T. 1959-1 1320 Contra Costa on Deer Valley Rd, 0.2 mi S of junction with Briones Valley Rd (ca 8 mi S of Antioch) Comment
  UC10645  Lepidium latipes F. T. Bioletti 1892-1 Contra Costa 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-BC89892  Lepidium nitidum Alice Eastwood 1914-3-14 3775 Contra Costa Byron Springs. Comment
  CAS-BOT-BC89900  Lepidium nitidum Volney Rattan 1879-1-1 s.n. Contra Costa Antioch. Comment
  UC10671  Lepidium nitidum J. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  UC1157922  Lepidium nitidum Olive Dyer 1937-3-6 214 Contra Costa upper end Wildcat Canyon Comment
  UC796578  Lepidium nitidum Reed C. Rollins 1946-3-25 3044 Contra Costa Mount Diablo, western slope Mount Diablo Comment
  RSA34732  Lepidium nitidum R. C. Rollins 1946-3-25 3044 Contra Costa Western slope of Mount Diablo. Comment
  UC10608  Lepidium oxycarpum J. Burtt Davy 1898-4-8 4263 Contra Costa Danville Comment
  UC1789934  Lepidium strictum Katharine Brandegee May 1907 Contra Costa Antioch Comment
  UC2028986  Leptosiphon ciliatus Barbara Ertter 2000-5-14 17009 Contra Costa Donner Canyon on north side of Mount Diablo, SW end of Falls Trail between Middle Trail and Donner Creek crossing. Comment
  CAS-BOT-BC324119  Lessingia glandulifera var. glandulifera T. S. Brandegee 1883-1-1 s.n. Contra Costa Antioch Comment
  SD43451  Lessingia glandulifera var. glandulifera Philip A. Munz 1947-10-8 12202 Contra Costa East of Antioch. Comment
  JEPS20577  Lessingia pectinata var. tenuipes R. F. Hoover 1940-11-23 4696 Contra Costa 2 mi w Byron Comment
  RSA39870  Lessingia pectinata var. tenuipes P. A. Munz 1947-10-8 12202 Contra Costa Sand dunes east of Antioch 8 Comment
  UC1287410  Lessingia pectinata var. tenuipes Willard Spence 1962-5-15 672 Contra Costa 0.2 mi e of entrance to Antioch Boat Ramp Comment
  RSA299549  Lessingia pectinata var. tenuipes Edward Lee, Annetta Carter 1935-8-17 1621 Contra Costa Antioch Comment
  UC691812  Lessingia pectinata var. tenuipes Mary L. Bowerman 1936-8-25 3535 Contra Costa due w of 1004 point Lime Ridge (and n of the chaparral patch); Mount Diablo, Lime Ridge 228 Comment
  JEPS43213  Lewisia rediviva W. L. Jepson 1907-4-26 2640 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC283734  Leymus condensatus W. A. Silveus 1938-7-5 3215 Contra Costa El Cerrito Comment
  SEINET3840826  Leymus triticoides Unknown 2006-6-23 6 .321 Contra Costa West Valona, West of the Zampa Bridge above San Pablo avenue, along a small stream draining north into the Western end of the Carquinez Strait 91 Comment
  UCD87775  Leymus triticoides M. Wiesendanger 1926-6-1 1527 Contra Costa Richmond. Comment
  RSA0026158  Leymus triticoides Barbara Ertter 2000-7-29 17448 -a Contra Costa Lower Donner Canyon just above Donner Cabin site, on north side of Mount Diablo. 213 Comment
  SEINET10595891  Leymus triticoides Frank W. Gould 1941-5-8 Gould 1290 Contra Costa Wastelands along Bay at Winehaven (near Richmond). Comment
  UC1789153  Ligustrum Barbara Ertter, Joanne Kerbabaz and Jeff Greenhouse 2000-10-26 17547 Contra Costa Mount Diablo State Park, a single sterile young shrub at a permanent spring-fed pond (''Secret Pond'') in angle of Stage Road and lower Barbeque Road, sahded by Aesculus. Comment
  CAS-BOT-BC211110  Lilaeopsis masonii W. Knight; I. Knight 1977-5-22 s.n. Contra Costa Antioch Dunes Comment
  UC1101455  Lilaeopsis masonii Herbert L. Mason April, 1954 Contra Costa n. end Antioch Bridge Comment
  UCD127576  Lilaeopsis masonii Robert E. Preston 1991-10-1 604 Contra Costa Antioch, Big Break Marina, along east side of levee north of the marina. 0 Comment
  UC691999  Lilium pardalinum Mary L. Bowerman 1935-6-21 3144 Contra Costa e fork Arroyo del Cerro; Mount Diablo 289 Comment
  UC692006  Lilium pardalinum Mary L. Bowerman 1935-6-21 3144 Contra Costa e fork Arroyo del Cerro; Mount Diablo 289 Comment
  UC17899  Limnanthes douglasii subsp. nivea W. H. Brewer 1862-4-30 1009 Contra Costa Camp 69 Walnut Creek Comment
  UCD33430  Limnanthes douglasii subsp. rosea Beecher Crampton 1968-3-27 8238 Contra Costa Contra Costa County, S.E. corner of County, ca. 3.5 miles south of Byron. Comment
  SEINET6670612  Limnanthes douglasii subsp. striata B. Crampton 1968-3-27 8238 Contra Costa SE corner of County, ca. 3.5 miles south of Byron Comment
  CDA33335  Limnobium laevigatum Paul Ryan/Alan Hyde 2010-10-4 PDR# 1596381 Contra Costa Near Rio Vista; tidal waterway, 200 yards from deep water channel 0 Comment
  CDA39643  Limonium sinuatum D. G. Kelch 2011-10-23 11 .840B Contra Costa Carquinez Strait Region; Martinez Waterfront Park. Comment
  JEPS108215  Linanthus ambiguus David Gowen 2005-4-26 268 Contra Costa Mt. Diablo State Park. Clayton Oaks Rd. (dirt), which follows the ridge east of Donner Canyon, ca 20 feet south of junction with Bruce Lee Trail. Comment
  UC400968  Linanthus ambiguus J. G. Lemmon Contra Costa Mt. Diablo Comment
  UC23377  Linanthus androsaceus Harley P. Chandler 1901-4-5 954 Contra Costa Mt. Diablo Comment
  UC691637  Linanthus androsaceus Mary L. Bowerman 1931-4-18 716 Contra Costa Sycamore Canyon Mount Diablo 335 Comment
  UC908952  Linanthus androsaceus Herbert L. Mason 1928-4-29 4441 Contra Costa Sycamore Canyon Mount Diablo (s slope of Mt. Diablo) Comment
  JEPS123332  Linanthus parviflorus David Gowen with Chris Thayer 2010-4-30 1090 Contra Costa North of Briones Reservoir. Rocky area on hill above Oursan Trail just west of its junction with Hampton Trail. Comment
  UC1819058  Linum bienne Barbara Ertter, Rich Rabeler 1994-6-6 12818 Contra Costa Point Isabel in south Richmond; black cinders on old railroad bed north of Costco; landfill. Comment
  UCR248236  Linum bienne Dean Kelch 2011-5-28 11 .537 Contra Costa Carquinez Strait Region, west of Martinez, north of end of Hillside Place 183 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
  POM142564  Lithophragma affine subsp. affine H. P. Chandler 1901-3-23 867 Contra Costa Martinez. Region of San Francisco Bay. Comment
Read comments
Mar 6 2011
  CAS-BOT-BC435625  Lithophragma heterophyllum Mary L. Bowerman 1931-3-21 585 Contra Costa Sycamore Canyon Comment
  JEPS75510  Lithophragma heterophyllum P. F. Yorks 1974-3-22 117 Contra Costa N of Briones Reservoir (ca. 1.8 km S of Bear Creek Road on Hampton Road); Hampton Road Natural Reserve 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
  UC1050466  Lobelia laxiflora N. Floy Bracelin 1941-5-4 1262 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC32010  Logfia filaginoides Harley P. Chandler 1901-4-5 963 Contra Costa Mt. Diablo 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
  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
  UC38790  Lolium multiflorum J. Burtt Davy 1897-9-9 4078 Contra Costa Stege Comment
  UC769868  Lolium multiflorum R. F. Hoover 1937-5-14 2107 Contra Costa Franklin Creek valley Comment
  SEINET2074966  Lolium multiflorum S. J. Gibbs 1970-3-27 Contra Costa Oak View Terrace, 3 mi. N.E. of P.O. 121 Comment
  POM206078  Lolium perenne subsp. multiflorum Jos Burtt Davy 1897-9-9 1674 Contra Costa Stege Comment
  CAS-BOT-BC271057  Lolium temulentum Mary L. Bowerman 1933-5-17 2096 Contra Costa Branch of Curry Canyon due south of Olafsons barn, Mount Diablo Comment
  POM132574  Lomatium caruifolium C. F. Baker 1908-4-27 2800 Contra Costa [Unspecified] Comment
  UCD127622  Lomatium dasycarpum P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UC21279  Lomatium dasycarpum subsp. dasycarpum H. M. Hall 1901-4-5 1747 Contra Costa Mt. Diablo 640 Comment
  UC691420  Lomatium dasycarpum subsp. dasycarpum Mary L. Bowerman 1932-2-28 1095 Contra Costa W of Blackberry Spring; Mount Diablo Comment
  RSA0029366  Lomatium dasycarpum subsp. dasycarpum Barbara Ertter, Susan D Alcamo 1994-4-24 12461 Contra Costa Mount Diablo east Walnut Creek, Bald Ridge Trail above Murchio Gap. 762 Comment
  UC692363  Lomatium nudicaule Mary L. Bowerman 1935-6-15 3127 Contra Costa Mt. Diablo, Mitchell-Pine divide, also large grassy ridge running n. Mt. Diablo, Mitchell-Pine divide 609 Comment
  UCD102387  Lomatium nudicaule Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. North Peak Road to North Peak. 920 Comment
  OBI70555  Lomatium utriculatum D. G. Kelch 2007-3-24 7 .093 Contra Costa Ozol; between Port Costa and Martinez, near old brick quarry Comment
  UC2031434  Lonicera hispidula Barbara Ertter 1991-6-1 10070 Contra Costa Las Trampas Regional Wilderness in hills W of Danville 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
  CAS-BOT-BC240662  Lonicera interrupta H. E. McMinn 1922-6-2 91 Contra Costa N.E. slope of Mt. Diablo Comment
  UCSB24470  Lonicera interrupta McMinn, Howard 1922-6-2 Contra Costa NE slope of Mt. Diablo Comment
  UCSB24472  Lonicera involucrata McMinn, Howard; Maino, E. 1931-3-9 Contra Costa Leona Canyon Comment
  CAS-BOT-BC241458  Lonicera involucrata var. ledebourii Ira L. Wiggins 1930-4-18 4594 Contra Costa Levee, east end of Jersey Island Comment
  UC1050675  Lonicera pileata f. yunnanensis N. Floy Bracelin 1941-4-20 1183 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC234843  Lonicera subspicata var. denudata Mary L. Bowerman 1932-10-16 1634 Contra Costa Mount Diablo. Donner Canyon basin: on west-facing slope of ridge east of Median Ridge 487 Comment
  CAS-BOT-BC200901  Lotus Elsie M. Zeile 1921-8-6 s.n. Contra Costa Shepherd's Canon [Canyon] Comment
  UC1594184  Lotus corniculatus Jerry Powell 1992-6-17 1650 Contra Costa Richmond Field Station Comment
  CDA27211  Lotus humistratus G. E. Sorensen 1963-5-24 Contra Costa North Gate Road, Mt. Diablo State Park. 0 Comment
  UC15689  Lotus humistratus State Survey 1800-1 1073 Contra Costa Mt. Diablo Range Comment
  UC2028272  Lotus micranthus Barbara Ertter 1999-6-12 16705 Contra Costa Black Hawk Ridge Road between Knobcone Point Road and NE fork of Sycamore Creek, South side of Mount Diablo. Comment
  JEPS75468  Lotus scoparius P. F. Yorks 1975-5-15 402 Contra Costa n of Briones Reservoir (ca 1.5 km s of Bear Creek Road on Hampton Road in Hampton Road Natural Reserve) Comment
  UC692270  Lotus scoparius Mary L. Bowerman 1932-9-24 1589 Contra Costa ridge running w from Twin Peaks; Mount Diablo 335 Comment
  UC69634  Lotus scoparius Jos. Burtt Davy 1895-1 Contra Costa Moraga Pass Comment
  JEPS116857  Lotus strigosus David Gowen 2007-4-13 673 Contra Costa On dirt road junction (Ridge Trail) between Castle Rock Recreation Area and Borges Ranch. Comment
  CDA9199  Lotus wrangelianus D. G. Kelch, D. A. Weinstein 2008-4-15 8 .047 Contra Costa Carquinez Strait; S Port Costa along Mckewen Rd. Comment
  UC1555365  Lotus wrangelianus Jerry Powell 1988-4-8 1531 Contra Costa Point Molate, in w Richmond Richmond Comment
  UCSC000383  Lotus wrangelianus A. E. Borell 1928-3-18 27 Contra Costa West slope of Mount Diablo 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
  CHSC67947  Lupinus albifrons James D. Jokerst 1989-3-31 3077 Contra Costa Rocky hillside E of creek in Brushy Creek Canyon. Comment
  UC750647  Lupinus albifrons Lewis S. Rose 1946-4-1 46023 Contra Costa above Wildcat Creek (Berkeley Hills); , above Wildcat Creek 396 Comment
  CAS-BOT-BC201365  Lupinus albifrons var. albifrons James McMurphy 1909-5-20 s.n. Contra Costa Antioch Comment
  UC864982  Lupinus albifrons var. albifrons Alice Eastwood 1915-5-30 Contra Costa Mt. Diablo 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
  CHSC21618  Lupinus bicolor Willis Ball 1974-4-21 428 Contra Costa Contra Loma Regional Park. In area #1. On n side of road leading to main parking lot ca. 150 yds e of lot. One yd. n of road. 38 Comment
  UC15930  Lupinus bicolor W. H. Brewer 1862-5-23 1149 Contra Costa se Monte Diablo; se of Monte Diablo Comment
  UC33551  Lupinus bicolor V. King Chesnut 1888-4-14 Contra Costa Moraga Valley Comment
  UCD107777  Lupinus formosus L. S. Smith 1916-5-10 s.n. Contra Costa Grand View Terrace - San Pablo. Comment
  UC1129458  Lupinus formosus var. formosus C. M. Belshaw 1936-5-7 2044 Contra Costa 2 mi s San Ramon; Mt. Diablo Quad. Comment
  UCD38731  Lupinus luteolus Beecher Crampton 1957-7-9 4274 Contra Costa 3 miles southeast of Crockett. On the road to Martinez. Comment
  CDA31091  Lupinus microcarpus var. densiflorus D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .216-B Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  JEPS25129  Lupinus microcarpus var. densiflorus G. Thomas Robbins 1959-4-18 3992 Contra Costa along Western Drive near and n Pt. Richmond (western base of Potrero Hills, Richmond); western base of Potrero Hills, n of Pt. Richmond 4 Comment
  OBI59407  Lupinus microcarpus var. densiflorus Barbara Ertter, Elizabeth Neese 1988-4-24 7450 Contra Costa Black Diamond Mines Regional Preserve SW of Antioch, N of E-W part of Black Diamond Trl Comment
  UC163954  Lupinus microcarpus var. densiflorus Miss H. A. Walker 1911-7-8 2526 Contra Costa near Point Isabel (e shore of San Francisco Bay); , near Point Isabel Comment
  UC201013  Lupinus microcarpus var. densiflorus Katharine Brandegee 1918-6-16 Contra Costa near Virgorit Powder Works; near Vigorit Powder Works Comment
  UCR197907  Lupinus microcarpus var. densiflorus Beecher Crampton 1950-4-22 525 Contra Costa Above site of Judsonville, west of old Empire mine 183 Comment
  UC2027986  Lupinus microcarpus var. densiflorus Barbara Ertter 1998-5-3 16034 Contra Costa east side of Pine Ridge south of Wall Point Road, southwest flank of Mount Diablo. Comment
  CDA27537  Lupinus microcarpus var. microcarpus D. G. Kelch, A. G. Murdock 2005-5-6 5 .224 Contra Costa Franklin Canyon. East of Christie Road. South of Route 4. Comment
  UC201025  Lupinus microcarpus var. microcarpus Katharine Brandegee 1918-6-16 Contra Costa El Dorado St. Richmond Annex (Richmond Annex); , El Dorado St. Comment
  UC1795805  Lupinus microcarpus var. microcarpus Barbara Ertter, Lisa Schultheis 1995-4-27 14011 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; northwest side of open grassy ridge at end of Arbolado Dr. 121 Comment
  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
  RSA120097  Lupinus nanus subsp. nanus L. D. Christenson 1935-4-11 78 Contra Costa East of Mt. Diablo. Comment
  UC1129668  Lupinus pachylobus R. C. Wilson 1935-3-19 139 Contra Costa 2 mi nw Wall Pt.; Mt. Diablo Comment
  UC2070441  Lupinus pachylobus Barbara Ertter with Linda Vorobik 2002-4-6 17823 Contra Costa South side of Mount Diablo, roadside NW of Curry Point trailhead. Comment
  SEINET10486145  Lupinus polycarpus Frenkel 1964-3-27 FRENKEL 409 Contra Costa On giant road, .4 mi n of atsf rr crossing, richmond. 15 Comment
  UCD109637  Lupinus succulentus Helen K. Sharsmith 1962-4-17 4937 Contra Costa Vicinity of Grizzly Peak, Berkeley Hills. 426 Comment
  JEPS67204  Luzula macrantha W. L. Jepson 1943-4-24 20761 Contra Costa Vicinity San Francisco Bay, Oakland Hills, Moraga Ridge Comment
Read comments
Jan 25 2008
  UC2062431  Luzula macrantha Barbara Ertter with David Gowen 2013-4-9 21309 Contra Costa Mount Diablo State Park southeast of Walnut Creek, Sulfur Spring/Devils Slide Trail southeast of Curry Point. Comment
  JEPS112518  Lythrum hyssopifolia D. G. Kelch 2004-6-6 04 .225 Contra Costa Martinez - Train Station Downtown Martinez. Alhambra Creek near bay and railroad Station. 2 Comment
  UC5897  Maclura pomifera W. G. Klee June 1880 Contra Costa road to Walnut Creek Comment
  UC691550  Madia elegans Mary L. Bowerman 1933-6-3 2240 Contra Costa Ransom Point ridge Mount Diablo Comment
  UC697170  Madia elegans Mary L. Bowerman 1936-9-10 3542 Contra Costa Donner Canyon Mount Diablo (by streamlet) 335 Comment
  JEPS99498  Madia elegans Mary Bowerman 1979-5-12 Contra Costa Mount Diablo. North Peak trail between Devil's Pulpit & Prospectors Gap. Comment
  UC2027823  Madia elegans Barbara Ertter 2000-11-19 17552 Contra Costa Briones Regional Park, Black Oak Trail. Comment
  CAS-BOT-BC344324  Madia exigua Joseph Andorfer Ewan 1936-5-24 9693 Contra Costa West slope Bald Peak, San Pablo Ridge Comment
  JEPS99484  Madia exigua Mary Bowerman 1978-5-14 Contra Costa Mount Diablo. The old wagon trail to mines on E. side of Eagle Peak. Comment
  CAS-BOT-BC342984  Madia gracilis Mary L. Bowerman 1933-6-3 2241 Contra Costa Mount Diablo. Ransom Point Ridge Comment
  CDA8360  Madia gracilis D. G. Kelch, A. G. Murdock 2004-4-25 4 .119 Contra Costa Carquinez Strait; W of Martinez along Carquinez Scenic Dr. Comment
  CAS-BOT-BC342987  Madia gracilis David D. Keck 1941-6-5 5309 Contra Costa Berkeley Hills, Fish Creek Road, 1/4 mi. W. of east portal of Broadway Tunnel 335 Comment
  CAS-BOT-BC324487  Madia radiata K. Brandegee 1908-4-9 50 Contra Costa Near Antioch Comment
  UC112946  Madia radiata Mrs. K. Brandegee 1908-4-9 50 Contra Costa near Antioch Comment
  UC761804  Madia radiata R. F. Hoover 1938-3-25 2898 Contra Costa Lone Tree Valley Comment
  CDA29210  Madia sativa D. G. Kelch 2008-6-15 8 .247 Contra Costa Carquinez Strait; Crockett hills, S of Cummings Skyway, W of Crockett Blvd. Comment
  CDA42364  Madia sativa D. G. Kelch, Vince Guise 2012-7-26 12 .239 Contra Costa Wildcat Canyon Park, Alvarado Unit. Comment
  RSA577468  Maianthemum racemosum subsp. amplexicaule Joseph A. Ewan 1934-6-8 8755 Contra Costa South Fork Marsh Creek, Mt. Diablo 305 Comment
  RSA69276  Maianthemum racemosum subsp. amplexicaule Frank W. Peirson, Mabel B. Peirson 1925-4-10 6636 Contra Costa Boulevard near San Pablo Reservoir Comment
  CHSC117387  Malacothamnus fasciculatus Barbara Ertter; Tony Morosco 1998-9-18 16417 Contra Costa West edge Lime Ridgde Open Space northwest of Mount Diablo, chaparral at base of hills. Comment
  UC2028109  Malacothamnus fasciculatus Barbara Ertter with Christopher Baysdorfer 1998-5-10 16114 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, on north end of Ohlone Trail. Comment
  CAS-BOT-BC206328  Malacothamnus fremontii Joanne Taylor 1941-7-18 20 Contra Costa By hills of Nortonville. 243 Comment
  UC18798  Malacothamnus fremontii Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC204094  Malacothamnus hallii John Thomas Howell; T. H. Kearney 1950-7-5 26634 Contra Costa On North Road, Mt. Diablo 259 Comment
  CAS-BOT-BC204097  Malacothamnus hallii John Thomas Howell; T. H. Kearney 1950-7-5 26634 Contra Costa On North Road, Mt. Diablo 259 Comment
  UC33270  Malacothrix californica J. Burtt Davy 1895-4-7 881 Contra Costa Antioch Comment
  UC691435  Malacothrix clevelandii Mary L. Bowerman 1932-4-16 1337 Contra Costa s 1682 point (Eagle Point Ridge, Mount Diablo); Mount Diablo 502 Comment
  UC2013000  Malva nicaeensis Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14922 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  CDA39046  Malva parviflora D. G. Kelch 2011-6-5 11 .575 Contra Costa Carquinez Strait; South of Crockett, south of Cummings Skyway. 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
  CDA9368  Malvella leprosa D. G. Kelch 2006-7-14 6 .332 Contra Costa Between Rte 4 and Carbon Rd. E Rodeo. Comment
  CHSC97871  Malvella leprosa D. G. Kelch 2006-7-14 06 .332 Contra Costa Between Rte 4 and Carbon Rd. E Rodeo. 24 Comment
  RSA0042211  Malvella leprosa D. G. Kelch 2006-7-14 06 .332 Contra Costa Between Rte 4 and Carbon Rd. E Rodeo. 24 Comment
  SEINET8551076  Marah fabacea R. R. Halse 1988-2-20 3540 Contra Costa Along Marsh Creek Road, in the Dark Canyon area, 4 miles W of its junction with Deer Valley Road, near 13980 Marsh Creek Road, Clayton.. 156 Comment
  JEPS63279  Marrubium vulgare L. Tinsley Sept. 1925 38 Contra Costa Mt. Diablo Comment
  UC691473  Marrubium vulgare Mary L. Bowerman 1933-8-2 2390 Contra Costa edge of Sheep Camp Spring (by west road) Mount Diablo; , edge of Sheep Camp Spring Comment
  UC691667  Matricaria discoidea Mary L. Bowerman 1932-5-6 1414 Contra Costa Mitchell Canyon Mount Diablo 213 Comment
  CAS-BOT-BC348049  Matricaria discoidea Mary L. Bowerman 1931-4-4 653 Contra Costa Mount Diablo. North Road 4.5 miles from North Gate Comment
  CAS-BOT-BC348259  Matricaria occidentalis R. E. Frenkel 1963-5-15 199 Contra Costa East of Bixler Road between Marsh Creek Road and California Hwy. 4 in Byron Tract Comment
  UC2036958 Image available Meconella californica Mary L. Bowerman 1946-3-10 4084 Contra Costa Northerly face of Shell Ridge. East of Brown's house (where [m.c.?] lived). Comment
  RSA195482  Medicago arabica C. R. Gunn 1963-5-31 2659 Contra Costa Contra Cost County: Tilden Park, Berkeley at intersection of Shasta and Oak Hill Roads Comment
  CDA4192  Medicago lupulina G. D. Barbe 1978-7-2 2409 Contra Costa 24th Street and Preble Court, Richmond. 0 Comment
  JEPS75470  Medicago polymorpha P. F. Yorks 1975-5-15 395 -2 Contra Costa on Hampton Rd ca 1.5 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Preserve Comment
  UC1197429  Medicago polymorpha Joseph P. Tracy 1934-4-30 13190 Contra Costa between Lafayette and Moraga 152 Comment
  UCD86382  Melica bulbosa M. Wiesendanger 1926-6-1 1530 Contra Costa Mt. Diablo. Comment
  UC692469  Melica californica Mary L. Bowerman 1932-4-16 1349 Contra Costa Eagle Point Mt Diablo (Mt Diablo) Comment
  UC691219  Melica imperfecta Mary L. Bowerman 1932-4-27 1383 Contra Costa canyon w Riggs Canyon (s-face Oyster Ridge); Mount Diablo, Oyster Ridge 335 Comment
  POM257058  Melica imperfecta var. refracta Virginia Long 1933-6-14 221 a Contra Costa Mt. Diablo. On slope SE-E along first west fork from Curry Creek Trail. Comment
  JEPS75104  Melica torreyana W. L. Jepson 1918-6-5 7600 Contra Costa Donner Canyon; Mt. Diablo 533 Comment
  UC1948967  Melica torreyana William J. Ferlatte, L. Maynard Moe 1970-4-27 1249 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC53660  Melica torreyana Jos. Burtt Davy 1899-4-19 7862 Contra Costa Las Trampas Creek Comment
  UC691166  Melica torreyana Mary L. Bowerman 1933-6-3 2235 Contra Costa summit Meridian Pk (Ranson Pt. trail); Mt. Diablo Comment
  JEPS127091  Melilotus indicus Lowell Ahart, Josephine Guardino 2016-4-19 20801 Contra Costa 1.4 miles northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  JEPS112482  Mentha X piperita D. G. Kelch 2004-5-7 04 .193 Contra Costa Ca ada del Cierbo 40 Comment
  UC2027800  Mentha aquatica Barbara Ertter 1996-9-19 15292 Contra Costa Antioch Marina, edge of marsh near parking lot. Comment
  UC19565  Mentzelia affinis J. Burtt Davy 1895-4-7 918 Contra Costa Antioch Comment
  RSA720796  Mentzelia dispersa Mary L. Bowerman 1978-6-3 s.n. Contra Costa Mount Diablo. Between lower summit parking lot and road. Comment
  JEPS99537  Mentzelia micrantha Mary L. Bowerman 1978-5-26 Contra Costa Mount Diablo, N of lower summit parking lot. Comment
  RSA296862  Mentzelia micrantha W. L. Jepson 1919-6-8 83314 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
  CDA31454  Micropus californicus D. G. Kelch 2006-5-2 6 .21 Contra Costa Carquinez Strait; Fernandez Ranch; W. Christie Rd. Comment
  UC1795792  Micropus californicus var. californicus Barbara Ertter, Mary Bowerman et al. 1995-5-7 14050 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, grassy flat, roadside vegetation, clay substrate. Comment
  CAS-BOT-BC348650  Micropus californicus var. subvestitus V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Val. Comment
  CAS-BOT-BC348789  Microseris campestris Peter H. Raven; H. L. Mason; R. Ornduff; et al 1957-4-4 10581 Contra Costa Flats 3.0 miles s. of Byron Comment
  CAS-BOT-BC348890  Microseris douglasii subsp. douglasii Alice Eastwood 1914-3-14 3800 Contra Costa Byron Springs Comment
  JEPS25387  Microseris douglasii subsp. douglasii Rimo Bacigalupi with G. T. Robbins and Francia Chisaki 1959-4-14 7000 Contra Costa along Lone Tree Way 2 1/2 mi se Antioch (just e of Antioch Airport) 56 Comment
  UC1795682  Microseris douglasii subsp. douglasii Barbara Ertter, Dale Sanders, Dan Norris 1994-3-26 12336 a Contra Costa Peyton Hill east of I-680 east of Martinez, south of Waterfront Road Comment
  UC691465  Microseris douglasii subsp. douglasii Mary L. Bowerman 1931-4-18 729 Contra Costa in basin of ne fork Sycamore Canyon; Mount Diablo Comment
  CAS-BOT-BC348889  Microseris douglasii subsp. douglasii Ira L. Wiggins 1930-4-17 4560 Contra Costa 1 mi. E. of Mountain House, on road to Byron Comment
  CAS-BOT-BC348896  Microseris douglasii subsp. douglasii Mrs. E. C. Sutliffe 1922-5-1 s.n. Contra Costa Richmond Comment
  UC1618256  Microseris douglasii subsp. douglasii Barbara Ertter 1991-5-5 9783 Contra Costa along spur road from Black Diamond Trail on ridge se Coal Canyon (s of Pittsburg); Black Diamond Mines Regional Preserve 426 Comment
  UC768670  Microseris douglasii subsp. tenella Robert F. Hoover 1939-4-25 4062 Contra Costa Richmond Hills Comment
  POM181472  Microseris douglasii subsp. tenella I. L. Wiggins 1930-4-17 4560 -a Contra Costa One mile east of Mountain House, on road to Byron. Comment
  JEPS18256  Microseris elegans Peter H. Raven with Mason, Stone, Ornduff, Kuijt 1957-4-4 10580 Contra Costa 3.0 mi s Byron Comment
  UC1818979  Microseris elegans Barbara Ertter, Dale Sanders, Dan Norris 1994-3-26 12336 Contra Costa Peyton Hill east of I-680 east of Martinez, south of Waterfront Road, west foot of hill near edge of marsh, openings in grassland. Comment
  JEPS78821  Mimulus aurantiacus var. aurantiacus Edward Lee 1936-5-24 2163 Contra Costa 10 mi from Marsh Creek Road; Morgan Territory Comment
  UC27116  Mimulus douglasii H. M. Hall 1901-3-8 1632 Contra Costa Bollinger Creek San Francisco Bay Region Comment
  UC1050851  Mimulus guttatus N. Floy Bracelin 1941-5-25 1321 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  POM204480  Mimulus guttatus J. T. Howell 1933-5-14 11242 Contra Costa St. Mary's College Comment
  UC103726  Mimulus latidens M. K. Curran May 1886 Contra Costa Antioch 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
  UC691740  Mimulus nasutus Mary L. Bowerman 1933-4-9 1834 Contra Costa w fork Dannor Canyon; Mount Diablo 243 Comment
  CAS-BOT-BC388586  Minuartia douglasii Mary L. Bowerman 1935-4-22 2889 Contra Costa Mount Diablo. Ridge west of Pioneer Road (west of Old Stage Road): Crest of ridge Comment
  RSA59589  Minuartia douglasii Verne Grant, Alva Grant 1950-5-13 8897 Contra Costa Saddle between N & Meridian peaks, Mt. Diablo. Comment
  UC1607684  Minuartia pusilla Barbara Ertter, Lynne Hosley 1993-4-17 11512 Contra Costa ca 10 air mi n Livermore (hills in lee of Mt. Diablo, edge of outcrop s of Hummingbird trail); Morgan Territory 609 Comment
  RSA83391  Monardella douglasii J. T. Howell 1942-7-19 17049 Contra Costa Northeast of Deer Flat, Mount Diablo Comment
  CAS-BOT-BC220511  Monardella villosa A. D. E. Elmer 1903-7-1 4658 Contra Costa Port Costa Comment
  CHSC68009  Monardella villosa subsp. villosa James D. Jokerst 1987-6-16 2917 B Contra Costa Livermore Valley, +/- 250 m S of a dirt track. Comment
  SEINET892705  Monardella villosa subsp. villosa Alice Eastwood 1915-1 4743 Contra Costa San Leandro, Contra Costa County. Comment
  CAS-BOT-BC327806  Monolopia gracilens Alice Eastwood 1915-5-30 4518 Contra Costa Mt. Diablo Comment
  UC903116  Monolopia lanceolata Donald Nelson 1941-3-23 Contra Costa e of Byron Comment
  CAS-BOT-BC349609  Monolopia major Ethel Crum 1939-3-19 2083 Contra Costa Two miles west of Byron 45 Comment
  CHSC22932  Monolopia major Robert A. Schlising 1962-4-7 2143 Contra Costa Coast Ranges. S of Jct Empire Mine Road and Lone Tree Way; roadside. Comment
  JEPS25355  Monolopia major Rimo Bacigalupi with Paul C. Hutchison and John Weiler 1959-3-19 6965 Contra Costa along Camino Diablo 1.9 mi w Byron (at road summit) 54 Comment
  UC618925  Monolopia major R. F. Hoover 1935-3-10 311 Contra Costa Kirker Pass Comment
  POM55549  Monolopia major C. F. Baker 1903-4-27 s.n. Contra Costa Byron. Comment
  RSA289444  Monolopia major Dale E. Johnson 1975-4-12 188 Contra Costa West of Byron; 2.6 km (1.6 miles) west of Byron Highway (Brentwood-Bethany road) on Camino Diablo; just west of road summit; near sand quarry Comment
  JEPS73689  Montia fontana L. R. Heckard with Wm. Hirano and Ted Niehaus 1968-3-5 1758 Contra Costa about 3 mi se of Byron (at junction of Holey Road, along Byron-Bethany Road) 7 Comment
  UC1606312  Montia fontana Barbara Ertter, Chris Thayer 1993-5-7 11691 Contra Costa 1/2 mi se of Inspiration Point (on Wilcat Canyon Road, East Bay Municipal Utilities District land e of Tilden Park); Hopkins Spring, East Bay Municipal Utilities District land 304 Comment
  UC1607685  Montia fontana Barbara Ertter, Lynne Hosley 1993-4-17 11511 Contra Costa Morgan Territory 10 air mi n of Livermore (in lee of Mount Diablo, s of Hummingbird trail,); Morgan Territory 609 Comment
  CAS-BOT-BC444824  Montia fontana Joseph Andorfer Ewan 1935-2-3 9083 Contra Costa Wildcat Creek 2 1/2 mi. below Orinda road bridge. Comment
  RSA666388  Montia fontana Barbara Ertter 1993-4-17 11511 Contra Costa Morgan Territory 10 air miles N of Livermore, in lee of Mt. Diablo. Shallow side at edge of sandstone outcrop S of Hummingbird trail. 610 Comment
  CAS-BOT-BC514197  Muilla maritima Alice Eastwood 1914-3-14 3788 Contra Costa Byron Springs Comment
  CDA15240  Myoporum laetum G. F. Hrusa, D. Crowe 1998-5-8 14371 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  CAS-BOT-BC83294  Myosurus minimus Peter H. Raven; D. Stone; H. L. Mason; R. Ornduff; et al. 1957-4-4 10582 Contra Costa 3.0 miles south of Byron. Comment
  UC1738102  Myosurus minimus D. E. Stone 1957-4-4 70 B Contra Costa 1 mi S of Byron ( on State 4) Comment
  UC407383  Myosurus minimus Ira L. Wiggins 1930-4-17 4580 Contra Costa 1/4 mi s Byron Comment
  UC480856  Myosurus minimus Katharine Brandegee 1909-4-24 Contra Costa Antioch Marsh Creek Antioch Comment
  UC634927  Myosurus minimus H. L. Mason 1932-3-20 6854 Contra Costa Briones Road Comment
  UCD96307  Myosurus minimus H. L. Mason 1952-4-14 14263 Contra Costa 3.5 miles south of Byron. Comment
  UCD96579  Myosurus minimus Roman Gankin 1958-3-8 s.n. Contra Costa ca. 3 miles south of Byron. Comment
  UC1738119  Myosurus minimus subsp. apus D. E. Stone 1955-8-29 8 -14 Contra Costa 3 mi S of Byron (on the road to Herdlyn) Comment
  JEPS17886  Myosurus sessilis Rimo Bacigalupi with G. T. Robbins 1956-3-26 5532 Contra Costa about 2 1/2 mi s Byron (just s of S.P.R.R. crossing on rd. to Bethany, near head of Italian Slough) 6 Comment
  CDA36299  Myriophyllum spicatum Ed Finley, Mark Lubinski 1988-9-26 Contra Costa Brentwood, Cruiser Haven Marina. 7000 Orwood Road. 0 Comment
  UCD170623  Myriophyllum spicatum 1996-10-1 s.n. Contra Costa Martinez, Contra Costa Landscaping. Comment
  OBI72036  Najas guadalupensis Barbara Ertter, Brad Olson 1991-9-28 10838 Contra Costa San Pablo Reservoir between Orinda and El Sobrante 91 Comment
  JEPS102897  Narcissus tazetta Barbara Ertter 1998-1-25 15910 Contra Costa Back Canyon Road at crossroad S of Donner Canyon trailhead Mount Diablo Comment
  UC691262  Nassella lepida Mary L. Bowerman 1932-4-27 1376 Contra Costa canyon w Riggs Canyon (e bank of stream, s face of ridge); Mount Diablo, Oyster Ridge 289 Comment
  SBBG730  Nassella pulchra A. A. Beetle 1941-3-28 1718 Contra Costa Orinda Comment
  SEINET190914  Nassella pulchra A. A. Beetle 1941-3-28 1718 Contra Costa Orinda. Comment
  UC692412  Nassella pulchra M. L. Bowerman 1935-4-26 2902 Contra Costa Indian Ceremonial Spring, W of Mount Diablo 1021 Comment
  UCD37583  Nassella pulchra Beecher Crampton 1955-4-11 2472 Contra Costa Contra Costa County, city of Richmond, East Shore and San Pablo Avenues. Comment
  POM300685  Nassella pulchra Mary L. Bowerman 1933-5-9 2036 Contra Costa East of Pioneer Camp Comment
  SEINET4673863  Navarretia gowenii David Gowen 2004-6-13 102 Contra Costa Lime Ridge Open Space. Northwest end.; 0 183 Comment
  JEPS116847  Navarretia heterandra David Gowen 2007-4-29 688 Contra Costa Just southeast and outside of Black Diamond Mines Reg. Preserve. Comment
  UC2042987  Navarretia intertexta subsp. intertexta Barbara Ertter with Alan Prather 2003-6-7 18206 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, shortcut between Coyote Trail and Stone Corral Trail. Comment
  JEPS70391  Navarretia mellita Mary L. Bowerman 1931-6-2 910 Contra Costa Gregory Ranch Road Mount Diablo Comment
  SEINET183957  Navarretia mellita John Thomas Howell 1938-6-30 13938 Contra Costa Head od Seista Valley. Comment
  UC2013027  Navarretia mellita Barbara Ertter with Travis Columbus 1990-6-10 9100 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill; trail heading down ridge on N side of Briones Peak. Comment
  UCD48584  Navarretia mellita H. L. Mason 1945-6-12 12588 Contra Costa Ridge south east of Mount Diablo near summit of road up Marsh Creek, Contra Costa County, California. Comment
  UC2042983  Navarretia pubescens Barbara Ertter with Dan Norris 1998-6-18 16216 Contra Costa Rock City area on south side of Mount Diablo, trail to Artist Point Comment
  UC691643  Navarretia pubescens Mary L. Bowerman 1930-6-5 259 Contra Costa 5.8 mi from West Road (= North Rd) entrance; Mount Diablo 457 Comment
  JEPS112009  Navarretia squarrosa Christopher Thayer 1995-6-5 Contra Costa West of Pinole Peak 274 Comment
  UCD36023  Navarretia squarrosa Beecher Crampton 1949-6-5 469 Contra Costa Contra Cost County, along Highway 40, Pinole to San Pablo, above Garrity Creek, on top of West Hills. 30 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
  UC727741  Nemophila heterophylla Milo S. Baker 1946-4-20 11328 Contra Costa summit s Clayton; Summit s of Clayton Comment
  RSA421271  Nemophila heterophylla H. de Forest 1930-4-6 s.n. Contra Costa [No location information on label.] 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
  UC24234  Nemophila menziesii J. Burtt Davy 1895-4-7 875 Contra Costa Antioch Comment
  UC691704  Nemophila menziesii Mary L. Bowerman 1931-3-8 557 Contra Costa Mitchell Canyon , Mitchell Canyon (Mount Diablo) 304 Comment
  CHSC116618  Nemophila menziesii var. menziesii Lowell Ahart; Josephine Guardino 2016-4-19 20797 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along south side of road exit at Los Vaqueros Reservoir Marina, 2.3 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  JEPS127095  Nemophila menziesii var. menziesii Lowell Ahart, Josephine Guardino 2016-4-19 20797 Contra Costa 2.3 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
  UC2027804  Nemophila menziesii var. menziesii Barbara Ertter with Holly Forbes 1997-4-20 15554 Contra Costa North base of Mount Diablo, trail to Back Creek from Mitchell Canyon trailhead. Comment
  CAS-BOT-BC515974  Nemophila parviflora var. parviflora Barrett Anderson 1987-4-30 3498 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  UC2029051  Nemophila pedunculata Barbara Ertter 2000-3-30 16903 Contra Costa North base of Mount Diablo, lower Mitchell Canyon ca 1.5 miles from trailhead. Comment
  CDA5796  Nicotiana tabacum R. DeBoer 1966-12-2 Contra Costa Golden Gate Fish Co., Point San Pablo, Richmond. 0 Comment
  UC691632  Nuttallanthus texanus Mary L. Bowerman 1938-6-2 3653 Contra Costa Mount Diablo, Dan Cook Canyon, 100 yards n of camp (C.C.C.) Dan Cook Canyon; Mount Diablo, Dan Cook Canyon Comment
  JEPS112074  Oemleria cerasiformis D. G. Kelch 2003-2-7 03 .35 Contra Costa Sky Ranch. Dutra Road path ~700-1000 ft. 250 Comment
  JEPS112083  Oemleria cerasiformis D. G. Kelch 2004-3-12 04 .21 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road 130 Comment
  RSA51235  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
  UC691109  Oemleria cerasiformis Mary L. Bowerman 1931-2-8 502 Contra Costa 4.5 mi from Mount Diablo west entrance (Mineral Spring); Mount Diablo Comment
  CAS-BOT-BC171594  Oenothera deltoides subsp. howellii K. Brandegee s.n. Contra Costa Antioch Comment
  CAS-BOT-BC171597  Oenothera deltoides subsp. howellii Walter Knight 1965-3-1 s.n. Contra Costa Antioch dunes. Comment
  RSA119427  Oenothera deltoides subsp. howellii William M. Klein 1958-6-9 432 Contra Costa Sandhills N of Antoch, along the San Joaquin River Channel. 2 Comment
  RSA119390  Oenothera deltoides subsp. howellii William M. Klein 1958-6-9 441 Contra Costa Sandhills N of Antoch, along the San Joaquin River Channel. 2 Comment
  RSA119391  Oenothera deltoides subsp. howellii William M. Klein 1958-6-9 442 Contra Costa Sandhills N of Antoch, along the San Joaquin River Channel. 2 Comment
  RSA119394  Oenothera deltoides subsp. howellii William M. Klein 1958-6-9 440 Contra Costa Sandhills N of Antoch, along the San Joaquin River Channel. 2 Comment
  CHSC97920  Olea europaea D. G. Kelch 2006-6-23 06 .322B Contra Costa West Valona. West of the Zampa Bridge above San Pablo Ave. Along small stream draining north into the western end of the Carquinez Strait. 91 Comment
  RSA0059169  Orobanche bulbosa F. T. Bioletti 1894-5-13 11693 Contra Costa Mt. Diablo. Comment
  JEPS10811  Orobanche fasciculata Mary L. Bowerman 1935-5-22 3056 Contra Costa Saddle west of Twin Peaks. Comment
  JEPS127839  Orobanche fasciculata Adam C. Schneider 2014-5-15 468 Contra Costa Mt. Diablo State Park. Along summit road, just below Juniper Campground. Comment
  UC887954  Orobanche fasciculata Lewis S. Rose 1941-5-15 41243 Contra Costa Mt. Diablo, near summit. Comment
  UC1819031  Orobanche uniflora Barbara Ertter, Mary Bowerman, Lisa Schultheis 1995-3-31 13945 Contra Costa Mount Diablo State Park, steep west-facing bank with outcrops near weir at mouth of Mitchell Canyon. 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
  RSA516599  Orthocarpus densiflorus R. C. Bacigalupi 1956-5-11 5640 Contra Costa Between State Hwy 4 and (Franklin Canyon Rd) Santa Fe Ry.[RR] right-of-way, 1/4 mile E of jct of this road with US 40, 1.3 miles E of Pinole. 23 Comment
  RSA29779  Orthocarpus erianthus Joseph A. Ewan 1934-4-8 8762 Contra Costa Head of Hog Canyon, S slope Mt Diablo. 640 Comment
  UC1094580  Osmorhiza berteroi C. R. Bell 1953-3-27 1407 Contra Costa Berkeley, U.C. campus 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
  CDA4721  Oxalis corniculata D. G. Kelch, A. G. Murdock 2005-5-23 5 .375 Contra Costa Carquinez Strait Region; Crockett - Crolona Heights. 6th Street at Lillian Street, Crockett. Comment
  UC2070525  Oxalis pes-caprae Barbara Ertter with Linda Vorobik 2002-4-6 17818 Contra Costa South flank of Mount Diablo, Sycamore Canyon at Devils Slide. Comment
  UC1051229  Pandorea jasminoides N. Floy Bracelin 1942-9-20 2301 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC2028447  Panicum capillare Barbara Ertter with Chris Thayer 1996-10-25 15379 Contra Costa West side of Mount Diablo, North Gate Road 3 road miles below junction, near Mineral Spring Comment
  UC2028502  Panicum capillare Barbara Ertter with Mary Bowerman, Lisa Schultheis 1998-8-21 16396 Contra Costa South side of Mount Diablo, South Gate Road 1.1 miles below entry kiosky Comment
  SJSU6411  Papaver heterophyllum G. C. Dudley 1966-5-1 112 Contra Costa Reliez Valley, Briones Hills, N of Lafayette Comment
  JEPS101188  Parapholis incurva Dean W. Taylor 1990-4-10 10618 Contra Costa Byron Hot Springs Road, 1 mile S of Holey Road 24 Comment
  SBBG115829  Parapholis incurva K. Brandegee 1918-5-8 Contra Costa Byron Hot Springs Comment
  CDA4220  Paraserianthes lophantha D. G. Kelch 2006-12-2 6 .509 Contra Costa Carquinez Strait; Along drainage channel under Zampa Bridge, Crockett. Comment
  UC1818917  Paspalum distichum Barbara Ertter 1995-9-30 14524 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
  JEPS68227  Pectocarya pusilla Mary L. Bowerman 1933-5-8 2019 Contra Costa near crest (n side, by rd to camp ground); Rock City Ridge Comment
  JEPS10358  Pedicularis densiflora W. L. Jepson 1923-2-18 9845 Contra Costa Las Trampas Ridge 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
  POM286383  Pedicularis densiflora Lyman Benson 1931-3-18 2662 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  POM20615  Pediomelum californicum F. W. Peirson 1923-7-1 3618 Contra Costa Contra Costa County: summit of mt Diablo Comment
  JEPS112049  Pellaea andromedifolia D. G. Kelch 2004-4-25 04 .107 Contra Costa Martinez - West: Ozol Rock and Scenic Drive West Martinez on Scenic Dr. at Road Gate 28 Comment
  JEPS79489  Pellaea andromedifolia Edward Lee with Annetta Carter 1936-1-12 1708 Contra Costa canyon immediately s of Nortonville Comment
  POM281783  Pellaea andromedifolia Lyman Benson 1931-3-18 2667 Contra Costa Martinez Comment
  RSA686788  Pellaea andromedifolia Mark Morris 1929-03 14912 Contra Costa Mt. Diablo. Comment
  JEPS15174  Penstemon centranthifolius C. M. Belshaw 1936-5-9 2081 Contra Costa near Plot 14 (Nortonville); Mt. Diablo Quad., Nortonville Comment
  RSA181408  Penstemon centranthifolius James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  UCR136718  Penstemon centranthifolius L. S. Rose 1936-4-24 36158 Contra Costa 3 mi east of Antioch 15 Comment
  RSA101693  Penstemon centranthifolius H. L. Mason 1929-3-31 5156 Contra Costa Along San Joaquin River, Antioch. Comment
  UC691801  Pentachaeta alsinoides Mary L. Bowerman 1931-4-11 687 Contra Costa Pine Canyon Mount Diablo 121 Comment
  SEINET3148382  Pentachaeta alsinoides K. C. sn Contra Costa Foothills of Mt. Diablo Comment
  UC133407  Pentachaeta exilis C. F. Baker 1923-4-28 2826 Contra Costa Marsh creek Mount Diablo Comment
  UC697213  Pentachaeta exilis Mary L. Bowerman 1933-5-10 2062 Contra Costa ridge at e end and s of Meridian Flat; Mount Diablo 822 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
  CAS-BOT-BC413497  Persicaria amphibia Mary L. Bowerman 1935-9-13 3339 Contra Costa Mount Diablo. Hidden Pond Comment
  CAS-BOT-BC418832  Persicaria hydropiperoides Brian Atwater 1978-10-24 BA- 165 Contra Costa Between Bethel Island and Holland Tract Comment
  JEPS125632  Persicaria hydropiperoides Daniel Slakey with CNPS Volunteers 2015-9-12 226 Contra Costa Browns Island, northern part of Crooked Slough. 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
  JEPS1453  Phacelia breweri Mary L. Bowerman 1931-5-7 812 Contra Costa ne side of peak Mount Diablo, Meridian Peak (on way to saddle) Comment
  UC735070  Phacelia breweri Lincoln Constance, T. Morley, R. H. Shan, and W. H. Wagner 1946-4-26 3034 Contra Costa below Devil's Pulpit; Mount Diablo, Devil's Elbow 1127 Comment
  JEPS2178  Phacelia cicutaria var. cicutaria M. K. Curran 1884-1 Contra Costa Antioch Comment
Read comments
Feb 9 2013
  JEPS18382  Phacelia ciliata var. ciliata Rimo Bacigalupi with F. Chisaki 1957-3-27 5762 Contra Costa at jnct. of Lone Tree Way and Hillcrest Ave. (road) (about 1/2 mi w of Lone Tree School, 3 1/2 mi se of Antioch) 39 Comment
  JEPS111841  Phacelia distans D. G. Kelch 2003-4-3 04 .95 Contra Costa Ca ada del Cierbo Upper Ca ada de Cierbo on fire road to cow barn along Cummings Skyway. 70 Comment
  JEPS2385  Phacelia distans Mary L. Bowerman 1930-6-10 300 Contra Costa Meridian Peak summit Mount Diablo Comment
  UC24341  Phacelia distans J. Burtt Davy 1895-4-7 917 Contra Costa Antioch Comment
  SEINET10946719 Image available Phacelia distans Charles F. Baker 1903-4-28 Baker 2806 Contra Costa Antioch. 1-1 1/2 feet, common in the sandhills. "Also collected by me long ago at the same place." Comment
  UC35545  Phacelia divaricata F. P. McLean 1800-1 Contra Costa Mt. Diablo Comment
  UC671741  Phacelia divaricata Lincoln Constance, Donald G. Nelson 1940-4-23 2571 Contra Costa 1 mi n Berkeley; The Arlington Comment
  RSA276849  Phacelia douglasii James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  UC1228354  Phacelia imbricata subsp. imbricata L. R. Heckard 1956-7-17 805 Contra Costa Hampton Rd about 1 mi ne junction with Bear Creek road (n of Lafayette); Briones Hills 213 Comment
  JEPS111825  Phacelia nemoralis subsp. nemoralis D. G. Kelch 2005-5-1 05 .189 Contra Costa Crockett - Edwards Canyon 150 Comment
  CAS-BOT-BC154333  Phacelia phacelioides John Thomas Howell 1978-5-4 52870 Contra Costa Burned area in chaparral near summit, Mt. Diablo 1066 Comment
  SFV3029  Phacelia phacelioides L. Constance, C. W. Sharsmith, H. S. Reed 1940-4-27 2574 Contra Costa North Coast Ranges Mount Diablo, north of Juniper Camp. 762 Comment
  UC691717  Phacelia rattanii Mary L. Bowerman 1933-6-21 2331 a Contra Costa Donner Canyon Mount Diablo (by stream) Comment
  CDA40455  Phacelia tanacetifolia D. G. Kelch 2004-4-3 4 .056 Contra Costa Carquinez Strait Region; Crockett-Tormey Headlands, west of the I-80 and Cummings Skyway junction. Comment
  CHSC21625  Phacelia tanacetifolia Willis Ball 1975-3-26 513 Contra Costa Contra Loma Regional Park. In area #3. Beside trail immediately 25 yds sw of dam. 33 Comment
  CHSC69643  Phacelia tanacetifolia James D. Jokerst 1989-3-31 3079 Contra Costa Steep mesic hillside with fluffy clay soil E of creek in Brushy Creek Canyon. Comment
  JEPS1284  Phacelia tanacetifolia Linda Gehringer 1914-3-29 Contra Costa Brentwood Comment
  UC691701  Phacelia tanacetifolia Mary L. Bowerman 1931-4-19 738 Contra Costa ridge s Deer Flat (by rocks on crest of ridge); Mount Diablo 838 Comment
  UC2070461  Phacelia tanacetifolia Barbara Ertter with Steve Matson 2003-3-15 18105 Contra Costa Black Diamond Mines Regional Preserve, on SW side of Rose Hill. Comment
  CDA2277  Phalaris aquatica T. C. Fuller 1961-9-13 7004 Contra Costa Byron-Tracy Hwy (Hwy J4), 0.1 mile north of Delta-Mendota Canal. 0 Comment
  JEPS100005  Phalaris aquatica S. O'Neil 2003-5-30 SEO 35 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site 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
  UC50714  Phalaris minor J. Burtt Davy 1898-4-7 4258 Contra Costa Danville; Region of Mount Diablo, Danville Comment
  UC692384  Phalaris minor Mary L. Bowerman 1933-4-15 1849 Contra Costa canyon s Arroyo del Cerro, Mount Diablo (at edges of s-facing flat which slopes slightly adjacent to stream bed); Mount Diablo Comment
  UCD89185  Phalaris minor P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CAS-BOT-BC265959  Phalaris minor R. E. Frenkel 1964-4-29 462 Contra Costa 0.2 mile west of Bixler Road on Balfour Road 6 Comment
  SEINET10593167  Phalaris minor John Thomas Howell 1933-5-14 Howell 11234 Contra Costa St. Mary's College Comment
  JEPS99588  Phalaris paradoxa Mary Bowerman 1995-7-2 Contra Costa Mount Diablo, foot [trail] from Back Canyon to Donner Canyon. Comment
  SEINET8719258 Image available Phalaris paradoxa Laura Zeller 1965-1 85 Contra Costa Across from the University of California Botanical Garden with Lolium 76 Comment
  UC2028398  Phalaris paradoxa Barbara Ertter with Dan Norris 1998-6-18 16212 Contra Costa South Gate Road on south flank of Mount Diablo, ca. 1 mile in from park boundary, gentle S-facing grassy slope Comment
  UC908774  Phlox gracilis R. F. Hoover 1935-3-10 313 Contra Costa Antioch Comment
  CHSC59985  Pholistoma membranaceum J. M. Tucker 1981-4-25 4454 Contra Costa Antonio Souza Ranch southwest of Byron. Mt. Diablo Meridian. 309 Comment
  JEPS18381  Pholistoma membranaceum Rimo Bacigalupi with F. Chisaki 1957-3-27 5763 Contra Costa opposite John Marsh Historical Home (along Marsh Creek Rd.) 48 Comment
  SD211620  Pholistoma membranaceum Barbara Ertter 1992-3-8 10909 Contra Costa Northeast edge of Black Diamond Mines Regional Preserve, Northeast-heading canyon with steep loose sides circa 1/2 mile West of junctin of Stewartville Trail and Frederickson Lane Comment
  UC24023  Pholistoma membranaceum J. Burtt Davy 1895-4-8 989 Contra Costa foothills Antioch Comment
  HSC83448  Pholistoma membranaceum J. M. Tucker 1981-4-25 4454 Contra Costa Antonio Souza Ranch SW of Byron, summit of High Hill 309 Comment
  CDA23776  Phoradendron macrophyllum D. G. Kelch 2007-10-6 7 .633 Contra Costa Carquinez Strait; Fernandez Ranch. Muir Land Trust Property 4.5 km W of Rodeo. Comment
  UC692040  Phoradendron macrophyllum Mary L. Bowerman 1931-2-22 520 Contra Costa head of e. fork Sycamore Canyon; Mt. Diablo, Sycamore Canyon Comment
  CAS-BOT-BC141123  Phoradendron serotinum subsp. macrophyllum Mary L. Bowerman 1931-2-22 520 Contra Costa Mount Diablo. Sycamore Canyon, head of E fork Comment
  CDA9198  Phragmites australis D. G. Kelch, A. G. Murdock 2003-8-13 3 .101 Contra Costa Carquinez Strait; Salt Marsh E of Marina. Martinez. Comment
  JEPS78626  Phragmites australis Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3279 Contra Costa Botany Cove Browns Island; , Botany Cove Comment
  POM181424  Phragmites australis I. L. Wiggins 1930-4-18 4588 Contra Costa Jersey Island Comment
  CDA21558  Phyla nodiflora D. G. Kelch, Mike Park 2008-9-1 8 .304 Contra Costa Carquinez Strait; Lonetree Point. Rodeo Shoreline Park. Rodeo. Comment
  JEPS87944  Phyla nodiflora var. nodiflora Barbara Ertter, Brad Olson 1991-9-28 10828 Contra Costa at s end of San Pablo Reservoir between Orinda and El Sobrante; San Pablo Reservoir 91 Comment
  CDA2311  Phyllostachys aurea Barbara Ertter 2001-5-26 17652 Contra Costa Stamm Unit of Antioch Dunes National Wildlife Refuge east of Antioch. 0 Comment
  CAS-BOT-BC202274  Pickeringia montana var. montana Mary L. Bowerman 1931-5-2 793 Contra Costa Mount Diablo. North end of Eagle Point ridge Comment
  POM16711  Pickeringia montana var. montana A. D. E. Elmer 1903-05 4315 Contra Costa Mount Diablo Comment
  UC1129854  Pickeringia montana var. montana R. W. Lundh 1932-8-27 149 Contra Costa 1 1/2 mi w Cave Point; Mt. Diablo Quadrangle 487 Comment
  CAS-BOT-BC202277  Pickeringia montana var. montana W. W. Carruth 1891-5-1 s.n. Contra Costa Moraga Valley Comment
  UC534973  Pilularia americana Katharine Brandegee 1909-4-24 Contra Costa between Antioch and Marsh Creek (Briones Rd.) Comment
  JEPS47870  Pinus coulteri W. L. Jepson 1909-6-25 3117 Contra Costa Mt. Diablo Comment
  JEPS47871  Pinus coulteri W. L. Jepson 1909-6-25 3116 Contra Costa Mt. Diablo Comment
  UC1051358  Pinus muricata N. Floy Bracelin 1941-10-19 1713 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  CDA33592  Pinus radiata D. G. Kelch 2010-11-28 10 .448 Contra Costa El Sobrante. Hill above the junction of San Pablo Dam Rd and El Portal Dr (Quail Hill). Comment
  SEINET3874454 Image available Pinus radiata James K. Detling 1963-3-21 39 Contra Costa Near Glorietta School, Orinda, California.; 0 91 Comment
  CDA39511  Piperia elongata D. G. Kelch 2005-6-24 5 .381 Contra Costa Carquinez Strait Region; 5th Street Prairie, Crockett. Comment
  UC691267  Piperia unalascensis Mary L. Bowerman 1931-5-2 789 Contra Costa n end Eagle Point ridge; Mount Diablo Comment
  CAS-BOT-BC227987  Plagiobothrys David D. Keck 1933-4-2 1995 Contra Costa Vasco Road, eastern county, N of Vasco School Comment
  JEPS60917  Plagiobothrys acanthocarpus Mary L. Bowerman 1933-3-25 1761 Contra Costa Diablo Stock Farm (Stone Valley) Canyon Mount Diablo (w fork) Comment
  UC691338  Plagiobothrys acanthocarpus Mary L. Bowerman 1933-3-25 1761 Contra Costa Diablo Stock Farm, Emmons Canyon, w fork Stone Valley Canyon Mount Diablo, Stone Valley Canyon, Emmons Canyon Comment
  CDA40687  Plagiobothrys acanthocarpus Jim Jokerst 1989-3-29 3070 Contra Costa Byron Hot Springs area northeast of Livermore, adjacent to pipeline on terrace south of ephemeral creek. 0 Comment
  RSA565113  Plagiobothrys acanthocarpus Wm. Taylor 1992-4-16 12390 Contra Costa S of Bryan Hot Springs, in swale draining on E margin of [the township and range] 46 Comment
  JEPS111845  Plagiobothrys bracteatus D. G. Kelch 2005-3-25 05 .76 Contra Costa Hercules - Carbon Carbon Road near Route 4 50 Comment
  UC79430  Plagiobothrys bracteatus Katharine Brandegee May, 1884 Contra Costa Antioch Comment
  UC1795790  Plagiobothrys bracteatus Barbara Ertter, Mary Bowerman et al. 1995-5-7 14031 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. 304 Comment
  UC2027919  Plagiobothrys bracteatus Barbara Ertter, Dan Norris 2001-4-15 17614 Contra Costa West side Mount Diablo, east end Stonegate Trail. Comment
  UC78032  Plagiobothrys canescens T. S. Brandegee May 1890 Contra Costa Antioch Comment
  UC78081  Plagiobothrys fulvus T. S. Brandegee May, 1889 Contra Costa Antioch Comment
  RSA14931  Plagiobothrys fulvus var. campestris Alice Eastwood, John Thomas Howell 1935-4-7 2120 Contra Costa Near Byron on Marsh Creek Road. Comment
  CAS-BOT-BC277  Plagiobothrys humistratus M. K. Curran 1884-1-1 s.n. Contra Costa near Antioch Comment
  JEPS61038  Plagiobothrys humistratus E. L. Greene 1889-3-23 Contra Costa Byron Comment
  CHSC106838  Plagiobothrys leptocladus Barbara Ertter; Jim Jokerst, Dave Magney 1989-4-5 8129 Contra Costa SE part of county. Ca 15 air miles SW of Stockton, alkali sink W and adjacent to Clifton Court Forebay. Comment
  UC24579  Plagiobothrys leptocladus J. Burtt Davy 1895-4-7 946 Contra Costa Antioch Comment
  POM63822  Plagiobothrys nothofulvus Brandegee 1888-05 s.n. Contra Costa Antioch. Comment
  CDA9492  Plagiobothrys stipitatus var. micranthus D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .216 Contra Costa Byron Airport. Comment
  CHSC106840  Plagiobothrys stipitatus var. micranthus Barbara Ertter; Jim Jokerst, Dave Magney 1989-4-5 8126 Contra Costa SE part of county. Ca 15 air miles SW of Stockton, alkali sink W and adjacent to Clifton Court Forebay. Comment
  CHSC67896  Plagiobothrys stipitatus var. micranthus James D. Jokerst 1989-3-29 3071 Contra Costa Byron Hot Springs area NE of Livermore, adjacent to pipeline on terrace S of ephemeral creek. Comment
  JEPS65186  Plagiobothrys stipitatus var. micranthus L. R. Heckard 1971-4-15 2481 Contra Costa s Byron (at intersection of Holey Rd.) Comment
  OBI20604  Plagiobothrys stipitatus var. micranthus Robert F. Hoover 1967-4-28 10510 Contra Costa Byron Hot Springs Comment
  UC573079  Plagiobothrys stipitatus var. micranthus H. L. Mason 1929-3-31 5144 Contra Costa Briones Valley Comment
  JEPS88008  Plagiobothrys stipitatus var. stipitatus Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8120 Contra Costa ca. 15 air mi. s.w. Stockton (w. & adjacent to Clifton Court Forebay); s.e. Contra Costa Co. Comment
  UC78181  Plagiobothrys trachycarpus K. Brandegee May 1892 Contra Costa Antioch Comment
  JEPS99591  Plagiobothrys trachycarpus Mary Bowerman March 1979 Contra Costa Mount Diablo, Shell Ridge, ca. 3/8 mi. southernly from 884 (ft summit). Near fire road above cattle pond [unreadable] EBRPD-Foothills Reg. Park. 213 Comment
  JEPS116856  Plagiobothrys undulatus David Gowen 2007-4-16 674 Contra Costa Briones Regional Park on foot trail northwest of Maricich Lagoon. Comment
  CAS-BOT-BC6475  Plantago californica M. K. Curran 1883-1-1 s.n. Contra Costa Antioch Comment
  RSA0026162  Plantago coronopus Barbara J. Ertter 1990-10-24 9684 Contra Costa Martinez Regional Shoreline on Carquinez Strait. Near arch bridge. Comment
  OBI11669  Plantago elongata Robert F. Hoover 1967-4-28 10516 a Contra Costa Byron Hot Springs Comment
  UC924236  Plantago elongata H. S. Reed 1939-4-1 217 Contra Costa n of Richmond (on edge of San Pablo Bay); San Pablo Bay Comment
  JEPS14540  Plantago erecta G. Thomas Robbins with Peter H. Raven 1956-4-28 3664 Contra Costa just s El Cerrito city limits (along Arlington Ave at Kenilworth Dr); Berkeley Hills 213 Comment
  UC75129  Plantago erecta unknown 1903-4-25 2803 Contra Costa Antioch Comment
  JEPS87217  Plantago major Lauramay T. Dempster 1991-6-15 Contra Costa Orinda; 15 El Toyonal Comment
  UC101594  Platystemon californicus Katharine Brandegee 1907-5-5 f Contra Costa between Antioch and Marsh Creek; between Antioch and Marsh Creek Comment
  UC566962  Platystemon californicus R. C. Wilson 1935-3-26 143 Contra Costa 2 mi n Walnut Creek; Concord Quad. Comment
  UC101591  Platystemon californicus Katharine Brandegee 1907-5-5 h Contra Costa between Antioch and Marsh Creek (along a sandy road back of old Coal Mine); between Antioch and Marsh Creek Comment
  UC101596  Platystemon californicus Katharine Brandegee 1907-5-5 a Contra Costa between Antioch and Marsh Creek (along a sandy road back of the oldest coal mine); between Antioch and Marsh Creek Comment
  JEPS100158  Plectritis brachystemon G. Smick 2003-4-3 GAS 119 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691527  Plectritis ciliosa subsp. ciliosa Mary L. Bowerman 1931-3-29 629 Contra Costa Mount Diablo, on n side of Cave Point below summit Cave Point; Mount Diablo, Cave Point Comment
  UC76300  Plectritis ciliosa subsp. ciliosa Harley P. Chandler 1901-4-4 951 Contra Costa Mount Diablo, Pine Canyon Pine Canyon; Mount Diablo, Pine Canyon Comment
  RSA517359  Plectritis congesta subsp. nitida L. T. Dempster 1954-6-4 P 16 Contra Costa Wildcat Canyon Road, N of Orinda. Comment
  UC691522  Plectritis macrocera Mary L. Bowerman 1931-3-29 621 a Contra Costa Mount Diablo, East Cave Point Ridge Mount Diablo; , East Cave Point Ridge Comment
  POM300986  Plectritis macrocera Mary L. Bowerman 1933-4-22 1894 Contra Costa Inner Black Hills: spur running northwest from Cave Pt. Comment
  SACT001771  Pleuropogon californicus Peter Kamb, Francia Chisaki 1951-4-14 Contra Costa Annual, the several ascending stems decumbent at base. Growing in wet muck of swale. margins of small pond 0.2 miles south of junction of highway 4 and 21, 7 miles north of Walnut Creek. Comment
  CAS-BOT-BC260944  Pleuropogon californicus var. californicus Ynes Mexia 1929-4-21 2388 Contra Costa Junction of Franklin Canyon Comment
  SEINET199818 Image available Pleuropogon californicus var. californicus P. H. Raven, GT Robbins 1956-4-28 9042 Contra Costa Just east of junction to Martinez along state highway 4. Comment
  CAS-BOT-BC260947  Pleuropogon californicus var. californicus Peter Kamb; Francia Chisaki; Galen Smith 1951-4-14 1978 Contra Costa Margins of small pond 0.2 miles south of junction of Highways 4 and 21, 7 miles north of Walnut Creek Comment
  POM313147  Pleuropogon californicus var. californicus S. Galen Smith, Peter Kamb, Francia Chisaki 1951-4-14 1978 Contra Costa Margins of small pond 0.2 miles south of junction of highways 4 and 21, 7 miles north of Walnut Creek. Comment
  CAS-BOT-BC356112  Pluchea odorata Walter Knight; J. Dean 1978-8-14 3137 Contra Costa Browns Island Comment
  CAS-BOT-BC356115  Pluchea odorata Walter Knight; I. Knight; J. T. Howell; E. McClintock; S. Rae; B. Doyle 1978-9-5 3239 Contra Costa Browns Island. Botany Cove 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
  JEPS111733  Pluchea odorata var. odorata D. G. Kelch 2004-9-2 04 .334 Contra Costa Pacheco Marsh east of Martinez and I-680 and east of lone tree Marsh 5 Comment
  UCD159503  Pluchea odorata var. odorata D. S. Park 2010-9-11 251 -2 Contra Costa Waterfront Rd. Growing in ditch along roadside. Disturbed. Wet. 5 Comment
  JEPS99533  Poa howellii Mary L. Bowerman 1979-5-12 Contra Costa Mount Diablo. Prospector's Gap. Trail to North Peak from Devil's elbow. Between Devil's Pulpit and Aug. 1977 burn. 975 Comment
  UCD91103  Poa howellii Beecher Crampton 1956-5-14 3396 Contra Costa along Marsh Creek, Morgan Territory, southeast of Mt. Diablo. Comment
  CHSC25045  Poa secunda subsp. secunda Willis Ball 1975-3-9 480 Contra Costa In area #8. On slope of a hill ca. 510 yds. w of Contra Loma Blvd. 124 Comment
  UC692417  Poa secunda subsp. secunda Mary L. Bowerman 1935-4-19 2859 Contra Costa near Turtle Rock (hillside opposite side of rd); Mt Diablo 457 Comment
  UC306575  Pogogyne douglasii A. D. E. Elmer May 1903 4320 Contra Costa Walnut Creek Comment
  JEPS62457  Pogogyne serpylloides John Thomas Howell 1930-4-22 4747 Contra Costa Bald Peak, Berkeley Hills. Comment
  RSA0022137  Pogogyne serpylloides J. T. Howell 1930-4-22 4747 Contra Costa Bald Peak Comment
  UC691511  Pogogyne serpylloides Mary L. Bowerman 1932-4-9 1322 Contra Costa Inner Black Hills: Firebreak on large spur which heads into Sycamore Canyon Comment
  UC762113  Pogogyne zizyphoroides R. F. Hoover 1941-4-12 4842 Contra Costa 2 miles S of Antioch Comment
  CDA33833  Polycarpon tetraphyllum D. G. Kelch 2010-5-15 10 .126 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 Comment
  UC692130  Polygonum amphibium Mary L. Bowerman 1935-9-13 3335 Contra Costa Chase Pond Mount Diablo Comment
  JEPS99991  Polygonum arenastrum A. Langston 2003-9-16 AL 88 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS99992  Polygonum arenastrum G. Smick 2003-5-8 GAS 176 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA74882  Polygonum arenastrum Elroy Robinson 1935-9-14 s.n. Contra Costa Martinez Comment
  CDA37404  Polygonum argyrocoleon D. G. Kelch, Mike Perlmutter 2011-9-23 11 .759 Contra Costa Entry to Discovery Bay. Comment
  JEPS51308  Polygonum aviculare subsp. aviculare W. L. Jepson 1891-5-24 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC413970  Polygonum aviculare subsp. aviculare R. E. Frenkel 1964-4-8 421 Contra Costa By the south side of Marsh Creek Road near Marsh Creek 33 Comment
  CHSC97872  Polygonum aviculare subsp. buxiforme D. G. Kelch 2006-7-14 06 .328B Contra Costa Along Marine Vista Ave immediately west of Pacheco Slough. East of Martinez. 1 Comment
  JEPS112029  Polygonum aviculare subsp. buxiforme Dean G. Kelch and Andrew G. Murdock 2005-3-13 DGK 05 .044 Contra Costa Crockett - weedy area under Zampa Bridge. Comment
  UC1784203  Polygonum persicaria Ethel Crum 1930-9-29 862 Contra Costa Marsh Creek Road to Holt Comment
  CDA42732  Polypodium calirhiza A. G. Murdock 2003-2-21 71 Contra Costa Carquinez Strait Region; Martinez; on top of north-facing hill above train tunnel on Mt. Wanda. Comment
  JEPS112032  Polypodium calirhiza D. G. Kelch 2004-3-5 04 .4 Contra Costa Martinez - Rankin Open Space Rankin Park, Martinez 68 Comment
  UC1541044  Polypodium calirhiza Dick Moe 1985-2-24 Contra Costa Red Rock Isl.; San Francisco Bay Comment
  UC921105  Polypodium calirhiza Ethel Crum 1930-4-14 570 Contra Costa Mitchell Canyon; Mt. Diablo Comment
  CAS-BOT-BC72043  Polypodium calirhiza Mary L. Bowerman 1935-3-15 2736 Contra Costa Arroyo del Cerro, east fork 262 Comment
  UCD137006  Polypodium calirhiza Herbert L. Mason 1928-3-4 41696 Contra Costa Shell Ridge. Comment
  RSA484484  Polypogon monspeliensis A. A. Beetle 1941-6-24 s.n. Contra Costa Point Richmond on San Francisco Bay. Comment
  CAS-BOT-BC232580  Polypogon monspeliensis Niall McCarten; V. I. Daina 1986-6-1 04141057 5 Contra Costa E of Byron Highway, N of Clifton Court Road Comment
  CAS-BOT-BC232586  Polypogon monspeliensis L. R. Abrams 1916-6-30 5715 Contra Costa Mount Diablo, near lake Comment
  CAS-BOT-BC237471  Polypogon viridis Mary L. Bowerman 1936-8-17 3527 Contra Costa Mount Diablo. Sulphur Spring in Pine Canyon 137 Comment
  RSA760663  Polystichum munitum William J. Ferlatte, L. Maynard Moe 1970-4-27 1244 Contra Costa San Francisco Bay, Red Rock Island. Comment
  JEPS112254  Populus fremontii subsp. fremontii D. G. Kelch 2005-5-13 05 .236 Contra Costa Martinez South of oil refinery along Railroad tracks Comment
  JEPS112037  Portulaca oleracea D. G. Kelch 2003-8-13 03 .111 Contra Costa Martinez Marsh 1 Comment
  UC1606288  Potamogeton crispus Barbara Ertter, B. Olson, D. Lake, L. Hosley and A. Youngson 1991-10-20 10865 Contra Costa just w of Antioch marina (along levee at water's edge, accessed from marina); Dow Wetlands Preserve Comment
  SBBG122780  Potamogeton diversifolius B. Ertter, B. Olson 1991-9-28 10839 Contra Costa S end of San Pablo Reservoir between Orinda and El Sobrante 91 Comment
  UC1100086  Potamogeton zosteriformis Malcolm A. Nobs, S. Galen Smith 1949-7-7 939 Contra Costa Webb Island, Sacramento Delta peat lands Webb Island; Sacramento Delta Comment
  JEPS112077  Potentilla anserina subsp. pacifica D. G. Kelch 2003-8-13 03 .107 Contra Costa Martinez Marsh 0 Comment
  UC72980  Potentilla anserina subsp. pacifica Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  JEPS23820  Proboscidea lutea G. Thomas Robbins 1959-8-1 4114 Contra Costa roadside berm of frontage road just s Mt. Diablo Blvd. ((about 0.5 mi e of concrete bridge at Charles Hill and about 0.2 mi w of jct. of Hidden Valley Rd.), 2 mi w of Lafayette) 144 Comment
  JEPS23821  Proboscidea lutea G. Thomas Robbins 1959-8-1 4114 Contra Costa roadside berm of frontage road just s Mt. Diablo Blvd. ((about 0.5 mi e of concrete bridge at Charles Hill and about 0.2 mi w of jct. of Hidden Valley Rd.), 2 mi w of Lafayette) 144 Comment
  CAS-BOT-BC202303  Prosopis glandulosa var. torreyana Walter Knight; Irja Knight 1968-9-25 2251 a Contra Costa North entrance Contra Loma Regional Park, west side of road Comment
  CAS-BOT-BC158576  Prunus Walter Knight 1965-3-1 s.n. Contra Costa Antioch Dunes Comment
  CDA32038  Prunus angustifolia D. G. Kelch 2006-3-18 6 .107 Contra Costa 2 km N-NW of Orinda Village. NW of corner of San Pablo Dam Rd & Bear Valley Rd. 0 Comment
  UC1784904  Prunus avium Barbara Ertter with Dan Norris 1999-10-23 s. n. Contra Costa Huckleberry Botanic Regional Preserve, Oakland Hills, along lower loop trail Comment
  JEPS111535  Prunus cerasifera D. G. Kelch 2005-5-6 05 .219 Contra Costa Franklin Canyon East of Christie Road. South of Route 4.. 127 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
  UC691118  Prunus dulcis Mary L. Bowerman 1936-8-19 3533 Contra Costa Mount Diablo Comment
  UC2027733  Prunus dulcis Barbara Ertter 1997-2-16 15460 Contra Costa Shell Ridge Open Space on west flank of Mount Diablo, exposed sandstone on main ridgeline. Comment
  UC2028141  Prunus dulcis Barbara Ertter 1998-4-4 15974 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, Quarry Hill. Comment
  UC691824  Pseudognaphalium californicum Mary L. Bowerman 1935-5-30 3089 Contra Costa Eagle Point ridge 320 Comment
  JEPS75564  Pseudognaphalium luteoalbum P. F. Yorks 1974-10-27 374 -1 Contra Costa 2.0 km s Bear Creek Road (on Hampton Road, n of Briones Reservoir, in Hampton Road Natural Reserve); Northern coast, Hampton Road Natural Reserve Comment
  CAS-BOT-BC226636  Pseudognaphalium luteoalbum Virginia I. Dains; Walter Knight 1986-8-8 5500 Contra Costa Jct Rock S1 & Werner Cut 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-BC357222  Pseudognaphalium microcephalum Walter Knight; I. Knight 1977-7-25 s.n. Contra Costa Black Diamond Mines Regional Preserve. Nortonville town site 167 Comment
  CAS-BOT-BC357445  Pseudognaphalium ramosissimum Mary L. Bowerman 1938-11-19 3735 Contra Costa Mount Diablo. Mitchell Canyon 259 Comment
  UC1584859  Pseudognaphalium stramineum Jerry Powell 1987-9-7 1522 Contra Costa San Pablo Reservoir San Pablo Reservoir (weed in floodplain) Comment
  CAS-BOT-BC357594  Pseudognaphalium stramineum Walter Knight; I. Knight; J. T. Howell; E. McClintock; S. Rae; B. Doyle 1978-9-5 3237 Contra Costa Browns Island Comment
  UC1818943  Pseudognaphalium thermale Barbara Ertter, Gary Schoolcraft 1996-4-7 14569 Contra Costa Point San Pablo in west Richmond, crest of road to yacht harbor, coastal grassland on ridge southwest-facing slope. Comment
  UC177448  Psilocarphus oregonus Alice Eastwood 1893-5-5 Contra Costa Brentwood Comment
  CAS-BOT-BC361879  Psilocarphus tenellus John Thomas Howell 1933-5-14 11230 Contra Costa St. Mary's College Comment
  RSA138624  Ptelea angustifolia Katherine Brandegee 1907-6-16 137 Contra Costa Antioch Comment
  POM138613  Ptelea baldwinii subsp. crenulata C. F. Baker 1903-4-28 2943 Contra Costa Mitchell's Canyon, Mt. Diablo. Comment
  RSA126045  Ptelea baldwinii subsp. crenulata A. D. E. Elmer 1903-05 4327 Contra Costa Mount Diablo. Comment
  RSA603230  Ptelea baldwinii subsp. crenulata L. S. Rose 1936-4-24 36147 Contra Costa Marsh Creek. 6 miles E of Clayton. 61 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-BC148626  Ptelea crenulata Alice Eastwood 1915-5-30 4543 Contra Costa Mitchell Canyon, Mount Diablo Comment
  CAS-BOT-BC148639  Ptelea crenulata W. L. Jepson 1918-6-5 7603 a Contra Costa Mt. Diablo, Donner Canyon Comment
  JEPS40168  Ptelea crenulata H. L. Mason 1928-3-31 Contra Costa Mt. Diablo Comment
  JEPS40170  Ptelea crenulata W. L. Jepson 1931-4-5 15721 Contra Costa near Nortonville Comment
  JEPS40171  Ptelea crenulata W. L. Jepson 1923-6-10 9993 Contra Costa Upper Marsh Creek; Mt. Diablo Comment
  JEPS40172  Ptelea crenulata W. L. Jepson 1907-4-27 2648 Contra Costa Mt. Diablo Comment
  SBBG33491  Ptelea crenulata A. D. E. Elmer -May-1903 Contra Costa Mount Diablo Comment
  SD70002  Ptelea crenulata Darley Howe 1968-5-20 Contra Costa Nortonville Comment
  UC17376  Ptelea crenulata J. Burtt Davy 1895-4-7 909 Contra Costa Antioch Comment
  UC30132  Ptelea crenulata W. C. Blasdale 1893-5-13 Contra Costa Summerville Comment
  UC692575  Ptelea crenulata Mary L. Bowerman 1930-6-22 357 Contra Costa Mitchell Canyon; Mount Diablo Comment
  UC85434  Ptelea crenulata Katharine Brandegee 1907-6-16 Contra Costa hills back of Antioch Comment
  UCD116921  Ptelea crenulata P. B. Kennedy 1929-4-25 s.n. Contra Costa Marsh Creek Road. Comment
  CAS-BOT-BC148620  Ptelea crenulata Ethel Wickes 1917-6-1 s.n. Contra Costa Unspecified Comment
  UC2028220  Ptelea crenulata Barbara Ertter with Christopher Baysdorfer 1998-5-10 16126 Contra Costa West side Lime Ridge Open Space northwest of Mount Diablo. Comment
  POM181425  Pteridium aquilinum var. pubescens I. L. Wiggins 1930-4-18 4590 Contra Costa Jersey Island. Comment
  UCD92236  Puccinellia simplex Beecher Crampton 1968-3-27 8233 Contra Costa SE corner, ca. 3.5 miles south of Byron. Comment
  CAS-BOT-BC239827  Puccinellia simplex Niall McCarten; V. I. Dains 1986-6-1 03261200 9 Contra Costa (Highline reach 12-15) near Brushy Cr., empties into Clifton Ct. Forebay Comment
  UC2027759  Pyracantha angustifolia Barbara Ertter 1997-1-5 15433 Contra Costa Ygnacio Valley Road crossing Lime Ridge on northwest side of Mount Diablo. Comment
  UC2027949  Pyrus communis Barbara Ertter 1997-9-7 15790 Contra Costa North side Mount Diablo, cabin site on Donner Creek, in persisting orchard. Comment
  UC691327  Quercus X chasei Mary L. Bowerman 1935-10-26 3349 Contra Costa 0.1 mi (by road) above Silver Springs (50 ft from road); Mount Diablo 859 Comment
  UC691316  Quercus X morehus Mary L. Bowerman 1931-9-27 1048 Contra Costa ne side North Peak; Mount Diablo Comment
  CAS-BOT-BC45663  Quercus agrifolia Mary L. Bowerman 1930-6-3 225 Contra Costa West road, 1.9 miles from west entrance, Mount Diablo Comment
  CDA33977  Quercus agrifolia D. G. Kelch 2011-3-31 11 .082-B Contra Costa Carquinez Strait region.; Pinole. Comment
  JEPS100001  Quercus agrifolia S. O'Neil 2003-3-11 SEO 13 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1042561  Quercus agrifolia John Thomas Howell 1950-7-5 26638 Contra Costa Nortonville Comment
  UCD17416  Quercus agrifolia E. Dean; with B. Ertter, J. M. Tucker, and K. Chaney 2000-9-13 652 Contra Costa California. Contra Costa County: City of El Sobrante; El Sobrante Ridge, upslope of the terminus of Heavenly Ridge Rd., south of junction of Heavenly Ridge Trail and Manzanita Trail, at end of branch off Manzanita trail, south-facing slope overlooking city of El Sobrante. 213 Comment
  UCD45040  Quercus agrifolia J. M Tucker 1946-3-14 1375 Contra Costa Small tree ca. 15 feet tall; sunny southeast-faicng slope, on border of redwood grove associated with Ceanothus thyrsiflorus and Baccharis; Redwood Peak, ca. 200 yards south of summit, Contra Costa County, California. Comment
  UCD45130  Quercus agrifolia P. Akers 2002-5-11 s.n. Contra Costa Mt. Diablo Summit Trail at water tank picnic area. Elev: 2865 ft. 873 Comment
  UC691302  Quercus berberidifolia Mary L. Bowerman 1933-5-25 2194 Contra Costa Oyster Ridge, e of saddle (1300 ft), at w end of s-face Mount Diablo Comment
  JEPS37845  Quercus chrysolepis W. L. Jepson 1920-8-12 9074 Contra Costa Black Hills Mt. Diablo Comment
  UC1135389  Quercus chrysolepis R. W. Lundh 1933-3-13 212 Contra Costa 0.75 mi nw Pinehurst; Concord Quad. 304 Comment
  UC691274  Quercus chrysolepis Mary L. Bowerman 1930-8-31 446 Contra Costa Dan Cook Canyon, upper end Mount Diablo Comment
  CAS-BOT-BC86644  Quercus douglasii Alice Eastwood 1923-5-14 11813 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC86648  Quercus douglasii John Thomas Howell 1926-3-7 1658 Contra Costa Mt. Diablo near toll gate Comment
  UC1135448  Quercus douglasii R. W. Lundh 1932-8-17 131 Contra Costa 1 mi e Round Valley; Mt. Diablo Quad. 518 Comment
  UC691285  Quercus douglasii Mary L. Bowerman 1930-8-31 445 Contra Costa Dan Cook Canyon Mount Diablo Comment
  UCD45689  Quercus douglasii G. L. Stebbins, jr. 1945-10-14 3590 Contra Costa Northeast side of Mt. Diablo. Beside barn on road to old quicksilver mine. Comment
  UCD56638  Quercus douglasii J. M. Tucker 1946-5-8 s.n. Contra Costa Mt. Diablo, along main road, above main gate. Comment
  CAS-BOT-BC86121  Quercus dumosa Mary L. Bowerman 1935-11-30 3355 Contra Costa Mount Diablo. Fossil Ridge, roadside Comment
  UC5581  Quercus durata F. W. Bancroft 1894-7-10 Contra Costa half-way up Mt. Diablo Comment
  UC691322  Quercus durata Mary L. Bowerman 1931-5-19 873 Contra Costa main e branch Donner Canyon; Mount Diablo 304 Comment
  UC691276  Quercus garryana Mary L. Bowerman 1931-8-29 1035 Contra Costa Fossil Ridge Mount Diablo Comment
  UCD130592  Quercus garryana E. Dean; M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 654 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
  CAS-BOT-BC94292  Quercus garryana Mary L. Bowerman 1935-11-30 3351 Contra Costa In draw SW of Gibraltar Rock, Fossil Ridge Comment
  UC691314  Quercus kelloggii Mary L. Bowerman 1935-11-30 3354 Contra Costa w of Gibraltar Rock; Mount Diablo, Fossil Ridge Comment
  UCSB11595  Quercus kelloggii N. Grah 1962-4-14 110 Contra Costa 1.1 MI N OF TARRY LANE ON TAPPAN LANE ORINDA 243 Comment
  UC5607  Quercus kelloggii unknown 1800-1 Contra Costa Comment
  UC848107  Quercus lobata Lewis S. Rose 1938-10-28 38306 Contra Costa 6 mi e Clayton; Marsh Creek 152 Comment
  RSA388013  Quercus palmeri J. M. Tucker 1981-4-25 4453 -B Contra Costa Antonio Souza Ranch, SW of Byron. 309 Comment
  RSA388017  Quercus palmeri J. M. Tucker 1981-4-25 4453 -K Contra Costa Antonio Souza Ranch, SW of Byron. 309 Comment
  JEPS37842  Quercus wislizeni W. L. Jepson 1923-6-10 9983 Contra Costa near divide from Clayton (Marsh Creek); Mt. Diablo, Marsh Creek Comment
  UC5707  Quercus wislizeni W. H. Brewer 1861-9-25 843 Contra Costa Mount Diablo Comment
  UC691307  Quercus wislizeni Mary L. Bowerman 1931-10-5 1056 Contra Costa ridge e Rhine Canyon (about halfway-up slope, on spur at s end of ridge (also next canyon to e, which enters Curry Canyon at gate to Olafsons' ranch); Mount Diablo 487 Comment
  UC691311  Quercus wislizeni Mary L. Bowerman 1933-5-21 2161 Contra Costa ridge above Morgan Sulphur Spring; Mount Diablo 381 Comment
  CAS-BOT-BC104718  Quercus wislizeni D. C. Barclay 1919-5-10 s.n. Contra Costa from the hill above Redwood Inn, Moraga Valley Comment
  JEPS96257  Quercus wislizeni var. frutescens Dean Kelch 1995-3-14 97 .13 Contra Costa Mount Diablo, Rock City, e Contra Costa County Rock City; Mount Diablo, Rock City 457 Comment
  UCD47649  Quercus wislizeni var. frutescens John M. Tucker 1941-9-26 410 Contra Costa Summit of Moraga Ridge, Contra Costa County, California. Comment
Read comments
Sep 13 2011
  JEPS84502  Rafinesquia californica Jack Stratford 1981-5-6 Contra Costa Skyline Trail between Huckleberry Trail and Pinehurst Road; Huckleberry Botanic Regional Preserve Comment
  UC691446  Rafinesquia californica Mary L. Bowerman 1930-6-14 327 Contra Costa little below summit Meridian Peak; Mount Diablo, little below summit of Meridian Peak Comment
  CAS-BOT-BC362442  Rafinesquia californica Mary L. Bowerman 1931-4-25 764 Contra Costa Mount Diablo. Meridian Peak ca. 3 miles by road from summit Comment
  CAS-BOT-BC362445  Rafinesquia californica Brandegee No date on label s.n. Contra Costa Mt Diablo Comment
  JEPS112060  Ranunculus californicus D. G. Kelch 2005-4-15 05 .138 Contra Costa Rodeo Creek 100 ms west of previous site 100 Comment
  UC1126151  Ranunculus californicus R. C. Wilson 1935-3-27 148 Contra Costa Oyster Pt. Mt. Diablo Quadrangle Comment
  UC70183  Ranunculus californicus J. Burtt Davy May 1898 Contra Costa Danville Region of Mount Diablo Comment
  UCSB39437  Ranunculus californicus 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. 124 Comment
  SEINET11263164  Ranunculus canus Barbara Ertter, Brad Olson; James R. Shevock 1997-3-19 15505 Contra Costa East of Los Vaqueros Reseroir between Livermore and Brentwood.; 0 Comment
  UC2027849  Ranunculus canus Barbara Ertter 1997-2-16 15465 Contra Costa Shell Ridge Open Space on west flank of Mount Diablo, NE side of main ridge. Comment
  UC9455  Ranunculus canus var. canus J. Burtt Davy 1895-4-7 925 Contra Costa Antioch Comment
  POM268437  Ranunculus canus var. laetus Mary L. Bowerman 1931-3-8 563 Contra Costa W bank of Mitchell Canyon near mouth with oak and pines Comment
  SEINET3161111  Ranunculus hebecarpus L. S. Rose 1940-4-11 40180 Contra Costa Marsh Creek, 6 mi. se. of Clayton 61 Comment
  UC480966  Ranunculus hebecarpus Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  UC692125  Ranunculus hebecarpus Mary L. Bowerman 1932-3-23 1130 Contra Costa ridge e Donner Canyon (at saddle); Mount Diablo 274 Comment
  CDA31880  Ranunculus hebecarpus D. G. Kelch 2008-4-6 8 .033 Contra Costa Black Diamond Mines Regional Park. Near small picnic area between parking lot and mine entrance. 0 Comment
  POM269207  Ranunculus hebecarpus Mary L. Bowerman 1935-4-12 2807 Contra Costa W road immediately S of section 33. 183 Comment
  RSA0029287  Ranunculus occidentalis Barbara J. Ertter, Dan Norris 2001-4-15 17607 Contra Costa Diablo Foothills Regional Park. At east end of Alamo Trail. 213 Comment
  UCSB2072  Ranunculus occidentalis Hand, B. 1960-4-9 Contra Costa 2.9 miles from south gate on Mt. Diablo Road, Mt. Diablo. Comment
  UC2027737  Raphanus raphanistrum Barbara Ertter 1997-2-11 15454 Contra Costa North base of Mount Diablo, vacant lot on Regency Drive (en route to Donner Canyon trailhead). Comment
  CHSC75075  Raphanus sativus Roger Thom 1987-5-26 19 Contra Costa 2800 block of Buena Vista Ave. Walnut Creek. 30 Comment
  CDA29197  Rhamnus californica D. G. Kelch 2008-6-15 8 .249 Contra Costa Carquinez Strait; Crockett hills, S of Cummings Skyway, W of Crockett Blvd. Comment
  UC692615  Rhamnus californica Mary L. Bowerman 1930-8-31 451 a Contra Costa e of Sloan place (Sloan Road); Mount Diablo, Inner Black Hills Comment
  CDA9186  Rhamnus crocea Christopher Thayer 1995-6-5 s.n. Contra Costa Carquinez Strait; W of Pinole Peak. Comment
  UC692581  Rhamnus crocea Mary L. Bowerman 1930-6-22 360 Contra Costa Mitchell Canyon Mount Diablo Comment
  UC692584  Rhamnus crocea Mary L. Bowerman 1932-9-17 1579 Contra Costa Donner Canyon, w branch Mount Diablo Comment
  CAS-BOT-BC59894  Rhamnus ilicifolia A. D. E. Elmer 1903-5-1 4326 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC59898  Rhamnus ilicifolia L. R. Abrams 1910-10-8 4352 Contra Costa Mt. Diablo. 1158 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-BC200697  Rhus aromatica Mary L. Bowerman 1935-5-30 3092 Contra Costa Eagle Point ridge 350 Comment
  JEPS111590  Rhus trilobata D. G. Kelch 2005-3-26 05 .98 Contra Costa Pinole Peak Fernandez Ranch. South side - road from Perreria Road to Pinole Peak Ridge. Rare shrub up to 1.5 ms 150 Comment
  JEPS77004 Image available Ribes amarum Robert M. Lloyd 1963-3-17 2133 Contra Costa 0.5 mi e Grizzly Peak Road (on Skyline Drive (across from 7090 Skyline Drive), Huckleberry trail); Huckleberry trail Comment
  UC570838  Ribes californicum Herbert L. Mason 1926-3-7 2709 Contra Costa Summit Mt. Diablo Comment
  UC69859  Ribes californicum H. M. Hall 1901-4-5 1758 Contra Costa Summit Mt. Diablo Region of San Francisco Bay Comment
  RSA0025003  Ribes divaricatum var. pubiflorum David Gowen 2007-3-22 666 Contra Costa Huckleberry Preserve at the south end of the parking lot. Comment
  UC921820  Ribes malvaceum Lewis S. Rose 1941-3-22 41053 Contra Costa near summit Mt. Diablo 1188 Comment
  UC2029050  Ribes malvaceum var. malvaceum Barbara Ertter with Linda Vorobik 2000-1-9 16887 Contra Costa Las Trampas Regional Wilderness in East Bay Hills west of Danville. Comment
  UC1127445  Ribes menziesii H. S. Yates 1936-3-14 5364 Contra Costa 2 1/2 mi sw Round Valley; Mt. Diablo Quadrangle Comment
  SEINET5339680  Ribes menziesii var. leptosmum P. Del Monte 1976-3-28 s.n. Contra Costa Morgan territory road, 1 mile from junction with Marsh creek road 122 Comment
  UC2070465  Ribes quercetorum Barbara Ertter 2003-3-28 18112 Contra Costa Round Valley Regional Preserve, Miwok Trail at east end of Round Valley Creek. Comment
  LA205508  Ribes sanguineum Joseph Andorfer Ewan; 1934-3-10 8650 Contra Costa Wildcat Canyon, 1.5 mi. below Orinda road bridge Comment
  JEPS111985 Image available Ribes sanguineum var. glutinosum D. G. Kelch 2004-6-19 04 .285 Contra Costa Crockett - West Valona north-facing hill above/along railroad tracks. West of Carquinez Bridge. Crockett 20 Comment
  JEPS77001  Ribes sanguineum var. glutinosum Robert M. Lloyd 1963-3-17 2132 Contra Costa 0.5 mi e Grizzly Peak Road (on Skyline Drive (across from 7090 Skyline Drive), Huckleberry trail); Huckleberry trail Comment
  JEPS77002 Image available Ribes sanguineum var. glutinosum Robert M. Lloyd 1963-3-17 2132 Contra Costa 0.5 mi e Grizzly Peak Road (on Skyline Drive (across from 7090 Skyline Drive), Huckleberry trail); Huckleberry trail Comment
  CDA7895  Ricinus communis D. G. Kelch, A. G. Murdock 2004-7-9 4 .316 Contra Costa Carquinez Strait Region; Rodeo Shoreline. Comment
  CAS-BOT-BC362959  Rigiopappus leptocladus Mary L. Bowerman 1933-5-8 2016 Contra Costa Mount Diablo. Fossil Ridge near crest, on north side by side road Comment
  CAS-BOT-BC362963  Rigiopappus leptocladus Brandegee 1889-5-1 s.n. Contra Costa Antioch Comment
  CDA30988  Rigiopappus leptocladus D. G. Kelch, Abigail Moore 2010-4-7 10 .096 Contra Costa Mt. Diablo. Upper Mitchell Canyon. Comment
Read comments
May 4 2013
  UC691487  Rigiopappus leptocladus Mary L. Bowerman 1935-4-17 2835 Contra Costa 2 mi from North Gate (North Road, ridge w of chaparral); Mount Diablo 286 Comment
  UC691502  Rigiopappus leptocladus Mary L. Bowerman 1933-5-10 2064 Contra Costa ridge below Indian Ceremonial Spring; Mount Diablo Comment
  JEPS99482  Rigiopappus leptocladus Mary Bowerman 1977-5-29 Contra Costa Mount Diablo. SW corner Russellman Park. 365 Comment
  UC1818896  Rigiopappus leptocladus Barbara Ertter, Mary Bowerman et al. 1995-5-7 14063 Contra Costa Three-Springs Trail on NE side of Mt. Diablo SE of Clayton, small serpentine patch at road junction Comment
  CDA25732  Romulea rosea D. G. Kelch, D. A. Weinstein 2008-3-3 8 .025 Contra Costa East Bay.; Richmond. Wildcat Canyon Park. Alvarado Unit (W end). Comment
  JEPS100080  Rorippa nasturtium-aquaticum S. O'Neil 2003-8-6 SEO 45 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691057  Rorippa nasturtium-aquaticum Mary L. Bowerman 1930-6-5 244 Contra Costa West Road 5.8 mi from entrance Mount Diablo (West Road = North Road) Comment
  CAS-BOT-BC147409  Rosa californica Walter Knight; Joanne Dean 1978-8-14 3180 Contra Costa Browns Island Comment
  UC691161  Rosa californica Mary L. Bowerman 1936-9-10 3545 Contra Costa dry streambed Mount Diablo, Donner Canyon 213 Comment
  CDA23621  Rosa gymnocarpa D. G. Kelch, D. A. Weinstein 2008-4-15 8 .046 Contra Costa Carquinez Strait; S Port Costa along Mckewen Rd. Comment
  UC691164  Rubus discolor Mary L. Bowerman 1942-10-4 3853 Contra Costa Russelman Park road Mount Diablo Comment
  CAS-BOT-BC147359  Rubus pensilvanicus Walter Knight; B. Mortensen; B. Atwater; R. Bensler; J. Dean 1979-4-13 3369 Contra Costa Alder Point. Browns Island Comment
  CAS-BOT-BC158773  Rubus ursinus Walter Knight; Joanne Dean 1978-8-14 3167 Contra Costa Browns Island Comment
  UC2028271  Rumex acetosella Barbara Ertter 1999-6-12 16706 Contra Costa Black Hawk Ridge Road between Knobcone Point Road and NE fork of Sycamore Creek, South side of Mount Diablo. Comment
  JEPS112019  Rumex conglomeratus Dean G. Kelch and Andrew G. Murdock 2005-5-13 DGK 05 .247 Contra Costa Martinez. South of oil refinery along Railroad tracks in fragment of habitat. Comment
  UC1618384  Rumex conglomeratus Barbara Ertter, Diane Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10698 Contra Costa opposite of Pittsburg Marina (in center of w end of Browns Island n of Pittsburg near confluence of Sacramento and San Joaquin Rivers); Browns Island Comment
  CAS-BOT-BC421738  Rumex conglomeratus John Thomas Howell; Gordon H. True 1972-6-29 48935 Contra Costa On Byron Hot Springs Road southeast of Byron Comment
  UC465806  Rumex crispus J. Burtt Davy 1895-4-8 976 Contra Costa Antioch Comment
  UCD164880  Rumex crispus Henry House 1995-5-20 1995- 14 Contra Costa Adjacent to Walnut Blvd., approximately 1.25 km south of Marsh Creek Road. 30 Comment
  UC2012982  Rumex salicifolius var. salicifolius Barbara Ertter with Tony Morosco 1996-7-27 15030 Contra Costa Mount Diablo State Park, Donner Creek ca halfway between Regency Drive trailhead and old cabin site Comment
  UC606732  Rumex salicifolius var. salicifolius Edward Lee 1936-4-19 1949 Contra Costa ne shore Red Rock; San Francisco Bay Comment
  UC692158  Rumex salicifolius var. salicifolius Mary L. Bowerman 1938-6-14 3680 Contra Costa Canyon Nook Mount Diablo 670 Comment
  JEPS97695  Rupertia physodes Annetta M. Carter, Edward Lee 1936-5-24 1191 Contra Costa Marsh Creek about 2 mi. SE of Curry Canyon. Comment
  SEINET11268191  Salicornia europaea Barbara Ertter 1990-9-30 9656 Contra Costa Point Pinole Regional Shoreline, edge of sparina marsh at edge of salicornia marsh on SW corner of park; edge of San Pablo Bay.; 0 Comment
  CDA23459  Salicornia pacifica D. G. Kelch, A. G. Murdock 2003-8-13 3 .098 Contra Costa Carquinez Strait Region; Martinez Marsh. Comment
  CAS-BOT-BC103028  Salix bonplandiana Walter Knight; R. Bensler; B. Atwataer; J. Dean; B. Mortensen 1979-4-13 3367 Contra Costa Near South Landing. Browns Island Comment
  CAS-BOT-BC129921  Salix bonplandiana Barrett Anderson 1987-4-29 3476 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD. 125 Comment
  POM181448  Salix gooddingii I. L. Wiggins 1930-4-18 4591 Contra Costa Jersey Island. Comment
  UC691923  Salix laevigata Mary L. Bowerman 1933-5-21 2162 a Contra Costa stream bed immediately below thimbleberry patch in Sulphur Spring fork; Mt. Diablo, Sulphur Spring Canyon Comment
  LA208679  Salix laevigata Joseph Andorfer Ewan; 1933-10-15 8034 Contra Costa Mount Diablo, Indian Ceremonial Apr Comment
  UC499339  Salix lasiolepis Mary L. Bowerman 1933-3-25 1777 Contra Costa back of Diablo Stock Farm; Stone Valley, Emmons<?> Canyon 274 Comment
  CAS-BOT-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-BC129561  Salix lasiolepis var. lasiolepis Alice Eastwood 1914-2-24 3726 Contra Costa Antioch Comment
  CAS-BOT-BC129598  Salix lasiolepis var. lasiolepis Mary L. Bowerman 1932-11-19 1650 Contra Costa Pioneer Camp: along stream from the spring - Mount Diablo Comment
  RSA0029773  Salsola soda Barbara Ertter 1990-9-30 9659 Contra Costa Point Pinole Regional Shoreline on San Pablo Bay, north Richmond, on N edge of park. Comment
  JEPS62663  Salvia columbariae Lauramay Tinsley 1927-4-19 Contra Costa Mount Diablo Comment
  UCLA70075  Salvia columbariae Lewis S. Rose 1935-5-16 35168 Contra Costa Mt. Diablo Comment
  JEPS120273  Salvia leucophylla Barbara Ertter with David Gowen 2012-6-9 21026 Contra Costa southeast of junction of Big Springs Trail and Seaview Trail, southeastern Tilden Park in Berkeley Hills Comment
Read comments
Mar 22 2018
  SEINET3224512 Image available Salvia mellifera Lewis S. Rose 1941-3-22 41057 Contra Costa Mt. Diablo. 610 Comment
  UC635692  Salvia mellifera A. E. Borell 1928-3-18 28 Contra Costa w slope Mt. Diablo Comment
  UCD125593  Salvia mellifera P. B. Kennedy 1925-4-26 s.n. Contra Costa Mt. Diablo. Road to Sycamore Canon. Comment
  UC441298  Sambucus mexicana Tracy J. Storer 1912-7-16 Contra Costa 2 mi sw Walnut Creek Comment
  UC570378  Sambucus mexicana Chas. M. Belshaw 1936-2-16 1593 Contra Costa 2 1/2 mi nne Orinda; Sobrante and Briones Hills, Briones Valley Comment
  UC1949232  Sanicula bipinnata Barbara Ertter with Michelle Seidl 1992-3-14 10913 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo; along Blue Oak Trail Comment
  CHSC21621  Sanicula bipinnatifida Willis Ball 1975-3-25 502 Contra Costa Contra Loma Regional Park. In area #3. At peak of larg hill inarea #3 ca. 120 yds sw of the Dam. 60 Comment
  JEPS111612  Sanicula bipinnatifida D. G. Kelch 2004-4-3 04 .48 Contra Costa Martinez - Vine HillRidge West of 680. North of highway 4 44 Comment
  JEPS100130  Sanicula crassicaulis G. Smick 2003-3-3 GAS 62 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site 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
  UC2032846  Sanicula crassicaulis Doran, Andrew Scott 2012-3-20 717 Contra Costa Southern part of Brooks Island, old quarry near gravel conveyer belt and grind house. Comment
  JEPS2845 Image available Sanicula saxatilis Edw. L. Greene 1892-6-1 Contra Costa Mt. Diablo Comment
  UC480613  Sanicula saxatilis Carl Meyer 1928-2-22 281 Contra Costa Mount Diablo Comment
  UC666653  Sanicula saxatilis John Thomas Howell 1942-5-24 16969 Contra Costa Mount Diablo, Eagle Peak Mount Diablo; , Eagle Peak Comment
  UC691878  Sanicula saxatilis Mary L. Bowerman 1935-5-18 3025 Contra Costa Mount Diablo, across the road from and a little east of the parking area Mount Diablo 1066 Comment
  JEPS98659  Sanicula tuberosa O. Gomez, L. Schulties and P. Vargas 1996-5-29 43 PV96 Contra Costa trail between Mt. Diablo Peak and North Peak Mt. Diablo State Park Comment
  UC2027802  Sanicula tuberosa Barbara Ertter, Holly Forbes 1997-4-20 15557 Contra Costa North side of Mount Diablo, north end of Eagle Peak Ridge on Mitchell Rock Trail between Mitchell Rock and Twin Peaks. Comment
  SEINET238194 Image available Sasa borealis Beecher Crampton 1966-10-18 7815 Contra Costa CULTIVATED ; Kensington Berkeley Hills Blake Garden UC Berkeley Dept. of landscape architecture. Comment
  CAS-BOT-BC7627  Schoenoplectus acutus var. occidentalis Walter Knight; Joanne Dean 1978-8-14 3185 Contra Costa Browns Island. Comment
  CAS-BOT-BC111462  Schoenoplectus californicus LeRoy Abrams 1916-7-29 6305 Contra Costa Martinez Comment
  CAS-BOT-BC111465  Schoenoplectus californicus Walter Knight; Joanne Dean 1978-8-14 3189 Contra Costa Browns Island Comment
  POM181474  Schoenoplectus californicus I. L. Wiggins 1930-4-18 4592 Contra Costa Jersey Island. Comment
  UC407366  Schoenoplectus californicus Ira L. Wiggins 1930-4-18 4592 Contra Costa Levee bank , Levee bank (Jersey Island) 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
  JEPS111880  Scirpus koilolepis A. G. Murdock 2004-4-30 252 Contra Costa McEwen Road West side of road 130 Comment
  UC2029146  Scirpus maritimus Barbara Ertter with Dan Norris 1999-11-14 16854 Contra Costa Black Diamond Mines Regional Preserve, Sand Creek on east side Stewartville Trail, dominated by dense stand of Scirpus americanus. Comment
  SEINET3914709  Scirpus olneyi K. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4978 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough. SE portion of Bethel Slough.; 0 610 Comment
  UC1948943  Scrophularia californica William J. Ferlatte, L. Maynard Moe 1970-4-27 1223 Contra Costa San Francisco Bay: Red Rock Island Comment
  JEPS100051  Scutellaria tuberosa G. Smick 2003-4-1 GAS 113 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS62859  Scutellaria tuberosa W. L. Jepson 1921-5-22 9217 Contra Costa Mount Diablo Comment
  UC25837  Scutellaria tuberosa unknown 1037 Contra Costa Walnut Creek Comment
  CAS-BOT-BC327441  Senecio flaccidus var. douglasii Peter Rubtzoff 1954-9-14 1749 Contra Costa Along lower San Joaquin River east of Antioch Comment
  JEPS37616  Senecio flaccidus var. douglasii W. L. Jepson 1923-10-4 10224 Contra Costa Brannan Island Antioch Comment
  JEPS79322  Senecio flaccidus var. douglasii Edward Lee with Annetta Carter 1935-8-17 1634 Contra Costa Antioch Comment
  CAS-BOT-BC363750  Senecio integerrimus Rimo Bacigalupi 1926-4-30 1352 Contra Costa Summit of Mt Diablo Comment
  UC2032832  Senecio sylvaticus Doran, Andrew Scott 2012-3-20 702 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  POM181456  Senecio vulgaris Ira L. Higgins 1930-4-18 4597 Contra Costa Levee, n. end of Jersey Island. Comment
  CAS-BOT-BC80264  Sequoia sempervirens John Thomas Howell 1927-2-6 2279 Contra Costa San Leandro [Canon] Canyon at Pinehurst 152 Comment
  UC1543053  Sequoia sempervirens Donald G. Nelson 1938-11-6 583 Contra Costa w Moraga (e slope of ridge below water storage tank); Moraga Ridge Comment
Read comments
Jan 25 2008
  CDA37401  Sesbania punicea D. G. Kelch, Mike Perlmutter 2011-9-23 11 .764 Contra Costa Antioch. Dow Wetlands. Comment
  UC2012980  Setaria viridis Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14921 Contra Costa Northwest base of Mt. Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  CDA25239  Sherardia arvensis D. G. Kelch, D. A. Weinstein 2008-4-15 8 .044 Contra Costa Carquinez Strait; S Port Costa along Mckewen Rd. Comment
  JEPS12499  Sherardia arvensis W. L. Jepson 1896-5-31 Contra Costa Wildcat Creek; Berkeley 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
  UC1607657  Sidalcea malviflora subsp. laciniata Barbara Ertter, Chris Thayer 1993-5-7 11704 Contra Costa ca 1/2 mi n Vollmer Peak (= Bald Peak, in East Bay Municipal Utilities District land, e of Tilden Park); n of Vollmer Peak (= Bald Peak), e of Tilden Park 457 Comment
  UC1614102  Sidalcea malviflora subsp. malviflora Charles M. Belshaw 1935-6-24 784 Contra Costa Bald Peak ca. 1/2 miles east of Grizzly Peak Comment
  CDA39044  Silene gallica D. G. Kelch 2011-6-5 11 .572 Contra Costa Carquinez Strait; South of Crockett, south of Cummings Skyway. Comment
  JEPS111786  Silene gallica D. G. Kelch 2004-5-7 04 .188 Contra Costa Ca ada del Cierbo Ca ada del Cierbo 40 Comment
  CDA28920  Silybum marianum D. G. Kelch, Troy MacGregor 2009-5-24 9 .297 Contra Costa Carquinez Strait; Carquinez Loop Trail S of Ozol, S-SW of Martinez, nr Wolcott Ln . Comment
  UCR16901  Silybum marianum M. Wexler 1973-5-22 s.n. Contra Costa El Sobrante, across the street from the intersection of Jo-lin Ct. and Valley View Rd. 45 Comment
  JEPS100011  Sinapis arvensis G. Smick 2003-4-8 GAS 131 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111851  Sinapis arvensis A. G. Murdock 2004-2-12 207 Contra Costa Franklin Canyon east of McHarry Ranch Road 100 Comment
  UC691255  Sinapis arvensis Mary L. Bowerman 1931-4-11 710 Contra Costa Ridge e of lower Pine Canyon (Mount Diablo); Mount Diablo Comment
  UC2028577  Sinapis arvensis Barbara Ertter, Holly Forbes 1997-4-20 15548 Contra Costa North base of Mount Diablo, trail to Back Creek from Mitchell Canyon trailhead. Comment
  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
  RSA310841  Sisyrinchium bellum John Weiler 1959-4-5 5937 Contra Costa Along Bear Creek road Comment
  SEINET4061707  Sisyrinchium bellum M. W. Garcia 1960-1 60030 Contra Costa Collected on back of Tilden Park. 60 Comment
  JEPS125629  Sium suave Daniel Slakey with CNPS Volunteers 2015-9-12 228 Contra Costa Central part of large slough that runs north-south through Browns Island; east side of slough. 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
  CDA20181  Solanum elaeagnifolium A. Niang 2003-7-9 PDR 1406328 Contra Costa San Francisco Bay Area; Brentwood. 0 Comment
  CAS-BOT-BC231746  Solanum lanceolatum Robert De Boer; M. Bergseng 1959-8-14 2943 Contra Costa 2459 Alva, El Cerrito Comment
  CAS-BOT-BC157453  Solanum umbelliferum A. Eastwood 1915-5-30 4541 Contra Costa Mt. Diablo 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
  UC26238  Solanum umbelliferum J. Burtt Davy 1895-4-7 985 Contra Costa Antioch Comment
  RSA181413  Solanum umbelliferum James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  JEPS75542  Solidago velutina subsp. californica P. F. Yorks 1975-9-6 495 Contra Costa on Hampton Road ca 1.4 km s Bear Creek Road beyond entrance gate to Hampton Road Nature Reserve (n of Briones Reservoir); beyond entrance gat to Hampton Road Nature Reserve, Briones 170 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
  UC650555  Sonchus oleraceus Ira L. Wiggins 1930-4-18 4608 Contra Costa Jersey Island Comment
  CAS-BOT-BC374594  Sonchus oleraceus R. E. Frenkel 1963-8-18 263 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  UCD93010  Spartina patens Rolf Mall 1964-11-19 s.n. Contra Costa at head of Suisun Bay between Benecia and Vallejo. Comment
  CDA24126  Spergularia macrotheca var. longistyla D. G. Kelch 1992-3-21 1828 -A Contra Costa 2.5 mi. SE of Byron; along RR tracks, N of junction of Holey Rd. and Byron Hwy. 0 Comment
  UCR265178  Spergularia macrotheca var. macrotheca Barbara Ertter 1990-10-14 9661 Contra Costa San Francisco Bay Region, Point Isabel Regional Shoreline on San Francisco Bay in southwest El Cerrito, bare weedy flat above rocks on west shoreline 5 Comment
  RSA0098749  Spergularia macrotheca var. macrotheca Barbara Ertter 1990-10-14 9661 Contra Costa Point Isabel Regional Shoreline on San Francisco Bay in SW El Cerrito. Comment
  JEPS111531  Spergularia marina D. G. Kelch 2005-5-5 05 .215 Contra Costa Point Pinole - Giant Marsh 3 Comment
  SEINET11268258  Spergularia marina Barbara Ertter 2001-5-8 17630 Contra Costa Northwest flank of Mount Diablo, tributary of Galindo Creek on south side of knoll SW of Mount Zion.; 0 Comment
  SFV1240  Spergularia marina J. M. Tucker 1963-4-12 3687 Contra Costa West side of Holey Road, 3 miles southeast of Byron. Comment
  UCD99259  Spergularia marina J. M. Tucker 1963-4-12 3687 Contra Costa on west side of Holey Road, 3 miles southeast of Byron. Comment
  POM151915  Spergularia salina C. F. Baker 1903-4-27 2865 Contra Costa Byron. Comment
  JEPS111784  Spergularia villosa D. G. Kelch 2004-4-26 04 .141 Contra Costa Point Pinole 1 Comment
  UC1618136  Spergularia villosa Barbara Ertter with Chris Thayer and Dianne Lake 1996-5-16 14680 Contra Costa w of Richmond (Point Molate Naval Fuel Depot overlooking San Francisco Bay, around Tank 14); San Francisco Bay, Point Molate Naval Fuel Depot Comment
  UC2043056  Spergularia villosa Barbara Ertter with Brad Olson 1991-10-13 10855 Contra Costa SW corner of Point Richmond, hillside across road from George Miller Jr. Regional Park. Comment
  JEPS111061  Spiranthes romanzoffiana Lee Echols 2003-7-20 s.n. Contra Costa Richmond Field Station, west-central portion of Danthonia grassland N of Lark Drive 15 Comment
  UC1795653  Stachys ajugoides var. rigida Barbara Ertter, Brad Olson 1994-5-7 12756 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  UC416579  Stachys ajugoides var. rigida Ivar Tidestrom June, 1895 Contra Costa Crockett Comment
  UC884280  Stachys ajugoides var. rigida Alice Eastwood 1915-5-30 Contra Costa Mt. Diablo Comment
  UCLA70977  Stachys ajugoides var. rigida Joseph Andorfer Ewan 1934-5-20 8933 Contra Costa Russelmann Park Mt. Diablo (n slope of mountain) Comment
Read comments
Aug 22 2009
  UC1619953  Stachys albens Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10703 Contra Costa n. Pittsburg (in center of w. end of Browns Isl., near confluence of Sacramento & San Joaquin rivers opposite Pittsburg Marina); Browns Isl. Comment
  POM312580  Stachys albens Malcolm A. Nobs, S. Galen Smith 1949-7-8 943 Contra Costa Otto s Black Bass Resort, 4 miles north of Kingston. Comment
  UCD15026  Stachys rigida Jennifer Roth 1979-4-29 27 Contra Costa Clayton, CA, Russleman Park Road off Marsh Creek Road, Concord Mt. Diablo Trail Ride Assoc. grounds; 365 Comment
  JEPS111782  Stellaria media D. G. Kelch 2003-3-21 03 .58 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  UC1125842  Stellaria media R. C. Wilson 1935-3-12 12 Contra Costa 1.5 mi ne Danville; Mt. Diablo Quad. 198 Comment
  UC692299  Stellaria pallida Mary L. Bowerman 1933-3-18 1752 Contra Costa Meridian Peak Mount Diablo (a little e of the meridian) 45 Comment
  UC2028164  Stellaria pallida Barbara Ertter 1998-2-15 15919 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, Haystack Hill NW of Old Borges Ranch. Comment
  CAS-BOT-BC375205  Stephanomeria elata John Thomas Howell 1925-11-1 1544 Contra Costa Moraga Ridge, Oakland Hills Comment
  JEPS79320  Stephanomeria exigua subsp. coronaria Edward Lee with Annetta Carter 1935-8-17 1627 Contra Costa Antioch Comment
  SBBG42912  Stephanomeria exigua subsp. coronaria L. D. Gottlieb 1969-11-2 6959 Contra Costa E of Antioch, W of Kaiser Gypsum Plant at Minaker and Wilbur Rds Comment
Read comments
Feb 12 2013
  UCD150892  Stephanomeria virgata James A. Neilson Jr.; Samuel A Bamberg 1975-10-22 3492 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  JEPS75541  Stephanomeria virgata subsp. pleurocarpa P. F. Yorks 1974-8-10 365 Contra Costa ca 1.7 km s Bear Creek Road (n of Briones Reservoir, on Hampton Road in Hampton Road Natural Reserve); Hampton Road Natural Reserve 180 Comment
  UC1070309  Stephanomeria virgata subsp. pleurocarpa H. S. Yates 1934-9-2 4066 Contra Costa 1 mi sw Mt. Diablo; Mt. Diablo Quad. 762 Comment
  UC589838  Stephanomeria virgata subsp. pleurocarpa G. L. Stebbins Jr. 1938-7-30 2541 Contra Costa 0.5 mi e Marsh Creek Springs (along Marsh Creek Highway) Comment
  UC691441  Stephanomeria virgata subsp. pleurocarpa Mary L. Bowerman 1930-8-31 440 Contra Costa s face Black Hills (roadside); Mount Diablo Comment
  UC2028380  Stipa lepida Barbara Ertter 1998-6-20 16243 a Contra Costa Shell Ridge Open Space on NW side of Mount Diablo,below picnic ground at Old Borges Ranch Comment
  UC691145  Streptanthus albidus subsp. peramoenus Mary L. Bowerman 1935-6-8 3123 Contra Costa North Road 2 mi from North Gate (w of chaparral); Mount Diablo Comment
  CAS-BOT-BC87337  Streptanthus hispidus R. Bacigalupi 1946-5-30 2782 Contra Costa Along auto road up Mount Diablo, about 0.5 mile below Juniper Camp. Comment
  RSA26397  Streptanthus hispidus J. T. Howell 1941-4-6 s.n. Contra Costa Ridge east of Deer Park, Mt. Diablo Comment
  UC1292724  Streptanthus hispidus Freed W. Hoffman 1949-4-17 2766 Contra Costa Eagle Peak, E side, very near the summit Mount Diablo 725 Comment
  UC188201  Streptanthus hispidus J. G. Lemmon 1878-4-23 Contra Costa side Mt. Diablo Comment
  UCD102376  Streptanthus hispidus Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 1050 Comment
  UC2028382  Stuckenia pectinata Barbara Ertter 1998-6-20 16251 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Gypsy Flat Pond SW of Old Borges Ranch. Also in Joaquin Pond Comment
  UC2028384  Stuckenia pectinata Barbara Ertter 1998-6-20 16254 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Willow Spring Pond south of Ginder Gap Comment
  JEPS125637  Stuckenia striata Daniel Slakey with CNPS Volunteers 2015-9-12 223 Contra Costa Junction Suisun Bay and New York Slough, between Browns Island and Pittsburg Marina. Comment
  CAS-BOT-BC422914  Stylomecon heterophylla Volney Rattan 1883-4-1 s.n. Contra Costa Martinez Comment
  CAS-BOT-BC422917  Stylomecon heterophylla Volney Rattan 1879-1-1 s.n. Contra Costa Antioch Comment
  JEPS75474  Stylomecon heterophylla P. F. Yorks 1975-5-15 396 Contra Costa on Hampton Road ca 1.9 km s of Bear Creek Road in Hampton Road Natural Reserve (n of Briones Reservoir); , n of Briones Reservoir Comment
  UC30066  Stylomecon heterophylla E. R. Drew 1889-4-26 Contra Costa Martinez Comment
  CDA9506  Suaeda nigra D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .233 Contra Costa Byron Airport. Comment
  CDA23107  Symphoricarpos mollis D. G. Kelch, D. A. Weinstein 2008-4-25 8 .084 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
Read comments
Jan 7 2016
  JEPS13659  Symphoricarpos mollis H. H. Haworth 1917-5-3 Contra Costa Redwood Peak Comment
  JEPS111656  Symphyotrichum chilense Dean G. Kelch and Andrew G. Murdock 2003-9-12 AGM 204 Contra Costa Selby, west of Crockett. Comment
  UC2046321  Symphyotrichum lanceolatum var. hesperium Barbara Ertter 2000-10-26 17550 Contra Costa West side Mount Diablo, Little Pine Creek near park boundary, just upstream from Falcon Road creek crossing. Comment
  JEPS41054  Symphyotrichum subspicatum Rimo Bacigalupi and L. R. Heckard 1965-5-11 9079 Contra Costa On rolling upper slopes of Brooks Island, mostly gently north and east exposures. Comment
  UCD35996  Taraxia ovata Beecher Crampton 1949-4-21 426 Contra Costa Contra Costa County, city of Richmond, in vacant lot near Santa Fe Railroad, S. 14th Street. 7 Comment
  UC1050709  Thalictrum aquilegifolium N. Floy Bracelin 1941-4-13 1143 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS112059  Thalictrum fendleri var. polycarpum D. G. Kelch 2004-5-2 04 .176 Contra Costa Crockett - Edwards Canyon Edwards Canyon 68 Comment
  CAS-BOT-BC197425  Thinopyrum ponticum T. C. Fuller 1961-9-13 7001 Contra Costa Hwy J4, ca. 4 mi. se. of Byron Comment
  CAS-BOT-BC88250  Thysanocarpus curvipes Alice Eastwood 1923-5-4 11711 Contra Costa Mount Diablo. Comment
  UC14311  Thysanocarpus curvipes Chestnut and Drew 1889-4-17 Contra Costa Summerville Comment
  UC402567  Thysanocarpus curvipes H. P. Chandler 1900-3-23 Contra Costa Fish Ranch Road; Region of Mount Diablo, Fish Ranch Road Comment
  RSA0039372  Thysanocarpus curvipes var. curvipes Harley P. Chandler 1901-4-5 940 Contra Costa Mt. Diablo, Pine Canyon. Comment
  UC10988  Thysanocarpus laciniatus W. H. Brewer 1862-5-17 1102 Contra Costa on dry hill n Mount Diablo; n of Mount Diablo Comment
  UC691136  Thysanocarpus laciniatus Mary L. Bowerman 1933-4-26 1933 Contra Costa Perkins Canyon branch between the main e ridge of North Peak and the ridge to its s Mount Diablo (Mount Diablo); , Perkins Canyon branch, North Peak 487 Comment
  CAS-BOT-BC67283  Thysanocarpus radians T. S. Brandegee 1883-5-1 s.n. Contra Costa Antioch. Comment
  UC691514  Tonella tenella Mary L. Bowerman 1935-5-18 3023 Contra Costa Mount Diablo; nw-facing slope across the road from, and a little e of, the parking area 1066 Comment
  JEPS99480  Torilis arvensis Mary Bowerman 1975-6-7 Contra Costa Mount Diablo. Big Spring. 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
  RSA122517  Toxicodendron diversilobum R. W. Lundh 1932-9-22 169 Contra Costa 1/2 mile southwest of Mt Diablo 915 Comment
  UC1130477  Toxicodendron diversilobum R. C. Wilson 1935-2-26 107 Contra Costa 1 mi. s.w. Nortonville; Mt. Diablo Quad. Comment
  UC17924  Toxicodendron diversilobum W. H. Brewer 1862-5-10 1068 Contra Costa near Clayton Clayton Comment
  UC606762  Toxicodendron diversilobum Edward Lee 1936-4-19 2014 Contra Costa bluffs along n.e. shore of Red Rock Isl.; San Francisco Bay, Red Rock Isl. Comment
  SEINET5577082  Toxicodendron diversilobum H. S. Gentry 1931-1 56 Contra Costa Collected on Mt. Diablo near Buckle Point. Comment
  SEINET928989  Toxicodendron diversilobum H. S. Gentry 1931-1 56 Contra Costa Collected on Mt. Diablo near Buckle Point. Comment
  UCD139856  Toxicoscordion fremontii Laurence S. Jones 1934-4-8 s.n. Contra Costa Mount Diablo. 609 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
  UC1619980  Tragopogon porrifolius Barbara Ertter 1991-5-12 9812 Contra Costa s.w. corner El Cerrito (along old R.R. right-of-way between bay & salicornia marsh, Point Isabel Regional Shoreline, on San Francisco Bay); San Francisco Bay, Point Isabel Regional Shoreline 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
  RSA161241  Trifolium albopurpureum Peter H. Raven, H. L. Mason, R. Ornduff 1957-4-4 10575 Contra Costa Hill near road 6.3 miles W. of Byron. Comment
  UCD38574  Trifolium albopurpureum Beecher Crampton 1956-5-14 3399 Contra Costa Headwaters of Marsh Creek, southeast of Mt. Diablo. 640 Comment
  UC16611  Trifolium albopurpureum var. albopurpureum J. Burtt Davy 1895-4-7 995 Contra Costa Antioch Comment
  UC555617  Trifolium albopurpureum var. albopurpureum H. L. Mason 1929-5-7 5261 Contra Costa Moraga Ridge Comment
  JEPS68974  Trifolium albopurpureum var. dichotomum Edward Lee 1935-3-29 1308 Contra Costa e Kirker Pass (Donovan Rd, (w watershed of Kirker Creek)) Comment
  UC1618339  Trifolium bifidum var. decipiens Barbara Ertter, Chris Thayer 1993-5-7 11714 Contra Costa 1/2 mi n of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land e of Tilden Park (s of Wildcat Canyon Road); East Bay Municipal Utilities District land Comment
  UC16436  Trifolium bifidum var. decipiens J. Burtt Davy 1900-3-24 6517 Contra Costa Stege Comment
  UC55887  Trifolium bifidum var. decipiens H. L. Mason 1901-4-5 1735 Contra Costa Mt. Diablo 670 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
  UC2028114  Trifolium campestre Barbara Ertter with Richard K. Brummitt 1998-5-6 16095 Contra Costa Donner Canyon Trail near Regency Drive trailhead, north base of Mount Diablo. Comment
  CDA23626  Trifolium ciliolatum D. G. Kelch 2008-4-12 8 .036 Contra Costa Mt Diablo. Mitchell Canyon. Along road looping north of main Mitchell Canyon Rd. Comment
  UC165574  Trifolium depauperatum var. amplectens J. Burtt Davy 943 Contra Costa Antioch Comment
  UC165576  Trifolium depauperatum var. amplectens J. Burtt Davy 1895-1 993 Contra Costa Antioch Comment
  UC692648  Trifolium depauperatum var. amplectens Mary L. Bowerman 1935-4-12 2815 Contra Costa 2 mi from entrance (w rd); Mount Diablo 259 Comment
  JEPS65840  Trifolium depauperatum var. depauperatum Edw. L. Greene 1889-3-23 Contra Costa Byron Springs Comment
  UC630935  Trifolium depauperatum var. depauperatum P. B. Kennedy 1928-4-19 10049 a Contra Costa Byron Hot Springs, near [golf links] Byron Hot Springs Comment
  UCSC011137  Trifolium depauperatum var. laciniatum R. Morgan 2015-4-11 6740 Contra Costa Byron Comment
  JEPS65752  Trifolium depauperatum var. truncatum Ivar Tiderstrom 1895-4-13 Contra Costa Lafayette Comment
  UC1861833  Trifolium depauperatum var. truncatum Barbara Ertter, Chris Thayer 1995-4-25 13998 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Black Hawk Ridge Rd. on north side Black Hawk Ridge. 548 Comment
  RSA107034  Trifolium depauperatum var. truncatum L. S. Rose 1956-3-19 56004 Contra Costa 2 miles southeast of Byron 8 Comment
  UC16512  Trifolium fucatum W. H. Brewer 1862-5-1 1040 Contra Costa s Camp 69; Walnut Creek Comment
  UC16537  Trifolium fucatum J. Burtt Davy 1900-3-24 6531 Contra Costa Stege Comment
  UC631617  Trifolium fucatum P. B. Kennedy 1928-4-28 10094 Contra Costa 2 mi from Tunnel (on hwy) Comment
  POM194649  Trifolium fucatum var. fucatum Y. Mexia 1929-4-21 2369 Contra Costa Moraga Valley. Comment
  RSA90945  Trifolium fucatum var. fucatum F. W. Peirson, Mabel B. Peirson 1926-4-10 6638 Contra Costa Between Walnut Creek and Martinez. Comment
  CDA27956  Trifolium gracilentum D. G. Kelch, A. G. Murdock 2005-4-2 5 .106 Contra Costa Carquinez Strait Region; Alhambra Valley. EBMUD land. North of intersection of Alhambra Valley Road and Castro Ranch Road. Comment
  UC1618357  Trifolium gracilentum Barbara Ertter, Chris Thayer 1993-5-7 11712 Contra Costa 1/2 mi n of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land e of Tilden Park (s of Wildcat Canyon Road); East Bay Municipal Utilities District Comment
  UC16557  Trifolium gracilentum W. H. Brewer 1862-5-19 1116 Contra Costa n Kirker's Pass Comment
  UC400157  Trifolium gracilentum Ynes Mexia 1929-4-21 2375 Contra Costa Moraga Valley Comment
  UC555448  Trifolium gracilentum H. L. Mason 1929-3-31 5150 Contra Costa along San Joaquin River; Antioch Comment
  UC555459  Trifolium gracilentum H. L. Mason 1932-3-20 6844 Contra Costa Antioch sand hills Comment
  UC692689  Trifolium gracilentum Mary L. Bowerman 1933-5-4 1996 Contra Costa e end Rock City Ridge (=Fossil Ridge) (roadbank); Mount Diablo 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
  JEPS65910  Trifolium gracilentum var. gracilentum W. L. Jepson 1917-4-19 6865 Contra Costa Oakland Hills Comment
Read comments
Dec 17 2008
  CDA23566  Trifolium hirtum D. G. Kelch, D. A. Weinstein 2008-4-2 08 .032-b Contra Costa Carqinez Strait; E Richmond. Hilltop Rd. Chevy s Hill. Comment
  CDA8356  Trifolium hirtum D. G. Kelch, A. G. Murdock 2005-4-15 5 .148 Contra Costa Carquinez Strait; In East Bay Regional Park land W of Cumming s Skyway near Summit (nr old C&H Sugar diatomaceous earth dump). Comment
  UC555606  Trifolium macraei H. L. Mason 1928-4-13 4304 Contra Costa Richmond waterfront Comment
  CDA29061  Trifolium microcephalum D. G. Kelch 2006-5-7 6 .149 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  UC692248  Trifolium microdon Mary L. Bowerman 1931-4-25 752 Contra Costa 2 mi from west entrance (=North Gate); Mount Diablo Comment
  UC1795804  Trifolium microdon Barbara Ertter, Lisa Schultheis 1995-4-27 14008 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; northwest side of open grassy ridge at end of Arbolado Dr. 121 Comment
  UC16656  Trifolium monanthum var. monanthum Maclean 1875-7-5 Contra Costa Mt. Diablo Comment
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Feb 14 2013
  UC16753  Trifolium obtusiflorum W. H. Brewer 1862-4-30 1005 Contra Costa Camp 69 Walnut Creek Comment
  CDA28015  Trifolium oliganthum D. G. Kelch, A. G. Murdock 2005-4-15 5 .15 Contra Costa Carquinez Strait Region; Rodeo Creek. EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  UC2029052  Trifolium oliganthum Barbara Ertter 2000-3-30 16904 Contra Costa North base of Mount Diablo, lower Mitchell Canyon ca 1.5 miles from trailhead. Comment
  UC555403  Trifolium oliganthum H. L. Mason 1929-3-29 5131 Contra Costa 2 mi above Clayton (Marsh Creek Rd) Comment
  CDA31447  Trifolium repens D. G. Kelch 2006-8-12 6 .378 Contra Costa Carquinez Strait; Martinez. Along Alhambra Creek near train station. Comment
  CDA29515  Trifolium tomentosum D. G. Kelch, Troy MacGregor 2009-5-1 9 .286 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  JEPS102894  Trifolium tomentosum Barbara Ertter 1998-5-3 16063 Contra Costa NW end of connector trail between BBQ Terrace Road and Wall Point Road Mount Diablo State Park 365 Comment
  PASA252  Trifolium tridentatum Annetta Carter 1929-3-31 Contra Costa Hills north of Mt. Diablo, near Clayton Comment
  UC16787  Trifolium variegatum Ivar Tidestrom 1893-4-15 Contra Costa Sheep Island Comment
  POM194557  Trifolium variegatum var. melananthum Y. Mexia 1929-4-21 20379 Contra Costa Moraga Valley Comment
  UC1197527  Trifolium willdenovii J. P. Tracy 1900-3-24 620 Contra Costa Point Richmond 15 Comment
  UC1948963  Trifolium willdenovii William J. Ferlatte, L. Maynard Moe 1970-4-27 1261 Contra Costa San Francisco Bay: Red Rock Island Comment
  UCD109847  Trifolium willdenovii W. L. Jepson 1925-4-26 10691 Contra Costa Mt. Diablo. Comment
  SBBG40328  Trifolium willdenovii W. J. Dress 1951-5-9 3311 Contra Costa just W of Orinda Comment
  JEPS37726  Trifolium wormskioldii W. L. Jepson 1922-5-26 9671 Contra Costa North Berkeley Hills Comment
  UCD139903  Trillium chloropetalum Morris Halperin 1929-4-21 s.n. Contra Costa St. Mary's College Campus. Comment
  SEINET10458812  Triodanis biflora Joseph W. Congdon 1896-5-30 Congdon s.n. Contra Costa Mount Diablo Comment
  UC1586061  Triphysaria eriantha subsp. eriantha Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8125 Contra Costa ca 15 air mi sw Stockton (se Contra Costa County); adjacent to Clifton Court Forebay 0 Comment
  UC691568  Triphysaria eriantha subsp. eriantha Mary L. Bowerman 1931-4-4 650 Contra Costa North Rd = near west road (between 1 and 4.5 mi from entrance) Mount Diablo Comment
  CHSC116658  Triphysaria pusilla Lowell Ahart; Josephine Guardino 2016-4-19 20780 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
  JEPS3981  Triphysaria pusilla W. L. Jepson 1923-4-22 9875 Contra Costa Mt. Diablo Comment
  UC691989  Triteleia hyacinthina Mary L. Bowerman 1938-6-3 3651 Contra Costa Rock City Mount Diablo (gentle n-facing slope) 518 Comment
  CHSC21624  Triteleia laxa Willis Ball 1975-3-25 505 Contra Costa In area #1. On s side of road leading to main parking lot at s end of lake ca. 35 yds e of parking lot. Contral Costa Regional Park. 38 Comment
  RSA378002  Triteleia laxa D. G. Nichols 1940-3-31 4 Contra Costa 5 miles west Byron on road from Byron to Clayton 146 Comment
  UC2028145  Triteleia laxa Barbara Ertter 1998-4-4 15970 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, Fossil Hill. Comment
  UCSB829  Triteleia laxa Hand, B. 1960-4-10 Contra Costa 1.8 miles from south gate on Mt. Diablo road, Mt. Diablo Comment
  CAS-BOT-BC67346  Tropidocarpum capparideum Robert F. Hoover 1936-3-19 806 Contra Costa Byron Hot Springs. Comment
  CAS-BOT-BC67356  Tropidocarpum capparideum Alice Eastwood 1914-3-14 3824 Contra Costa Byron Springs. Comment
  JEPS54270  Tropidocarpum capparideum Edward Lee Greene 1888-3-24 Contra Costa Byron Spr. Comment
  CAS-BOT-BC67403  Tropidocarpum gracile Alice Eastwood 1914-3-14 3824 a Contra Costa Byron Springs. Comment
  UC136962  Tropidocarpum gracile K. Brandegee April, 1889 Contra Costa Antioch Comment
  UC673302  Tropidocarpum gracile H. L. Mason 1932-3-20 6842 Contra Costa Antioch sand hills Comment
  UC673338  Tropidocarpum gracile H. L. Mason 1929-3-31 5148 Contra Costa in pastures Briones Valley Comment
  CAS-BOT-BC67406  Tropidocarpum gracile H. L. Mason 1929-3-31 5152 Contra Costa Along San Joaquin River at Antioch. Comment
  SEINET12007177  Tropidocarpum gracile L. S. Rose 1934-1 34066 Contra Costa 6 mi E of Clayton Comment
  UC1241769  Typha Malcolm A. Nobs and S. Galen Smith 1949-6-28 878 Contra Costa on road to Martinez s Crockett Comment
  UC2028519  Typha latifolia Barbara Ertter 1996-11-24 15429 Contra Costa West side of Mount Diablo, Pine Pond along Stage Road in Pine Canyon. Comment
  CHSC22748  Umbellularia californica Robert A. Schlising 1962-2-21 2078 Contra Costa Berkeley-Oakland Hills of westernmost part of county. 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
  JEPS112487  Umbellularia californica D. G. Kelch 2003-2-7 03 .37.B Contra Costa Franklin Canyon 115 Comment
  RSA446339  Umbellularia californica H. de Forest 1930-3-28 s.n. Contra Costa Slopes of Mt. Diablo. Comment
  CAS-BOT-BC91091  Umbellularia californica H. E. McMinn 1925-1-1 s.n. Contra Costa Head of San Leandro Creek. Comment
  OBI13419  Umbellularia californica H. E. McMinn, E. Maino 1931-2-15 13 Contra Costa Leona Heights Comment
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May 22 2013
  POM247255  Umbellularia californica Annetta Carter 1937-3-20 1224 Contra Costa Lake Orinda Road, two miles northeast of Orinda. 122 Comment
  CAS-BOT-BC381829  Uropappus lindleyi H. M. Hall 1901-4-5 1731 Contra Costa Region of San Francisco Bay. Mt. Diablo 457 Comment
  JEPS100166  Uropappus lindleyi G. Smick 2003-4-8 GAS 129 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1795024  Uropappus lindleyi R. K. Brummitt and B. Ertter 1998-5-13 19837 Contra Costa Mt Diablo, just below summit on S side 1000 Comment
  UC36691  Uropappus lindleyi H. M. Hall 1901-4-5 1731 Contra Costa Mt. Diablo 457 Comment
  UC336484  Uropappus lindleyi unknown Contra Costa near Mt. Diablo Comment
  CHSC116352  Urtica urens D. G. Kelch 2006-2-25 6084 Contra Costa Carquinez Strait: Crockett. Edwards Canyon. 53 Comment
  JEPS77019  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), Huckleberry trail) Comment
  OBI3305  Vaccinium ovatum Neil Havlik 1969-3-25 306 Contra Costa NE slope of Grizzly peak, justbelow the summit 518 Comment
  CDA28946  Valerianella locusta D. G. Kelch, Kaye Smith 2009-4-18 9 .147 Contra Costa Rodeo. Garden in Housing project. Comment
  UC1050826  Verbascum N. Floy Bracelin 1941-6-1 1346 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1714515  Verbascum blattaria unknown July 1892 Contra Costa Redwood Peak Comment
  UC454110  Verbena hastata I. J. Condit 1908-8-20 Contra Costa Oakley Comment
  RSA29666  Verbena lasiostachys var. lasiostachys Joseph A. Ewan 1936-7-5 9719 Contra Costa Reservoir road, Wildcat Creek. Comment
  UC1124419  Verbena lasiostachys var. scabrida H. S. Yates 1934-9-2 4069 Contra Costa 1 mi sw Mt Diablo; Mt Diablo Quadrangle Comment
  UC2028357  Verbena litoralis Barbara Ertter with Tony Morosco 1998-7-11 16372 Contra Costa Antioch Marina, in riverside tidal marsh Comment
  RSA128371  Verbena robusta Peter H. Raven 1950-7-5 2489 Contra Costa Mt Diablo. 396 Comment
  CDA5675  Verbena venosa R. DeBoer 1965-9-3 Contra Costa 4536 Elmwood Road, El Sobrante . 0 Comment
  UCD17863  Verbesina encelioides subsp. exauriculata Glen Holstein 2000-6-23 s.n. Contra Costa Midway between Brentwood and Oakley on west side of Highway 4. Comment
  UC691655  Veronica americana Mary L. Bowerman 1930-6-28 394 Contra Costa Mount Diablo, Lower Silver Spring Lower Silver Spring; Mount Diablo, Lower Silver Spring Comment