Search Results — 2000 specimen records retrieved (1345 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/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  RSA0029772  Acacia cyclops Barbara J. Ertter 1990-10-14 9660 Contra Costa Point Isabel Regional Shoreline on San Francisco Bay in SW El Cerrito, on abandoned railroad track at end of Rydin Road. Comment
  UCD104647  Acacia dealbata Rudolf Schmid 1997-5-21 1997 -12 Contra Costa Hillside Natural Area, El Cerrito; nw. of King Ct. entrance. 575 Comment
  UC1050738  Acacia pycnantha N. Floy Bracelin 1941-4-6 1113 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1051238  Acacia retinodes N. Floy Bracelin 1942-9-13 2291 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  SD45087  Acacia verticillata W. W. Jones 1927-4-5 Contra Costa Crockett Comment
  UC1050368  Acacia verticillata N. Floy Bracelin 1942-7-4 2172 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS42649  Acer macrophyllum W. L. Jepson 1908-4-4 3005 Contra Costa West Branch San Pablo Creek Comment
Read comments
Jul 7 2011
  UC18109  Acer macrophyllum Harley P. Chandler 1901-4-5 941 Contra Costa Mt. Diablo Comment
  UC1050967  Acer macrophyllum N. Floy Bracelin 1941-4-8 2647 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  SEINET3195242 Image available Acer negundo var. californicum Annetta Carter 1937-4-4 1229 Contra Costa Creek bank, Moraga Valley, 2.5 miles north of Moraga 180 Comment
  CDA29142  Achillea millefolium D. G. Kelch 2006-5-7 6 .148 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  CHSC23362  Achillea millefolium Willis Ball 1975-4-19 520 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
  JEPS100121  Achillea millefolium G. Smick 2003-4-22 GAS 141 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SEINET242634 Image available Achnatherum thurberianum M. E. Barkworth, S. W. L. Jacobs; Betty Jacobs 2003-4-7 2003 /4 Contra Costa Tilden Regional Park, east of Berkeley Comment
  CAS-BOT-BC29884  Achyrachaena mollis Alice Eastwood 1921-4-18 10250 Contra Costa Antioch Comment
  CDA29508  Achyrachaena mollis D. G. Kelch, Troy MacGregor 2009-5-1 9 .284 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  CHSC23339  Achyrachaena mollis Willis Ball 1974-4-21 426 Contra Costa Contra Loma Regional Park. In area #1. On the n side of road leading to main parking lot ca. 50 yds e of parking lot. 2 yds off road. 38 Comment
  JEPS111752  Achyrachaena mollis D. G. Kelch 2005-4-15 05 .153 Contra Costa Rodeo Creek EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump) 220 Comment
  JEPS36721  Achyrachaena mollis Anna E. Ehlers 1920-5-23 582 Contra Costa Trampas Canon Comment
  UC565420  Achyrachaena mollis Chas. M. Belshaw 1935-5-24 778 Contra Costa n face Bald Peak; Oakland and Berkeley Hills, Bald Peak Comment
  POM181443  Achyrachaena mollis I. L. Wiggins 1930-4-17 s.n. Contra Costa 1 mile E of Mountain House on road to Byron Comment
  POM54988  Achyrachaena mollis C. F. Baker 1903-4-27 2795 Contra Costa Byron. Comment
  SEINET11854800  Achyrachaena mollis Ottley 1920-1 486 Contra Costa San Francisco Bay Region. Field near Eagle Point, Mt. Diablo 213 Comment
  JEPS112327  Acmispon americanus Dean G. Kelch and Andrew G. Murdock 2004-7-16 04 .321 Contra Costa Martinez- South; County: Contra Costa; Pine St. Entrance Rte 4 heading west. Martinez, CA. Comment
  JEPS111509  Acmispon glaber Dean G. Kelch and Andrew G. Murdock 2005-5-13 05 .271 Contra Costa Martinez - South; County: Contra Costa; Tall hill in South Martinez and North of I-4. Comment
  JEPS112353  Acmispon glaber Dean G. Kelch and Andrew G. Murdock 2004-4-3 04 .054 Contra Costa Crockett - Tormey Headlands, County: Contra Costa; Road cut west of I-80 and Cummings Skyway junction. Comment
  CHSC23289  Acmispon wrangelianus Carol Getzinger 1964-4-11 Contra Costa Along Arlington Boulevard at Patterson Circle, Richmond. 30 Comment
  UCD104491  Acmispon wrangelianus Morris Halperin 1929-4-21 s.n. Contra Costa Moraga Valley. Comment
  CDA35657  Acroptilon repens Vince Guise 2011-8-2 PDR# 1649692 Contra Costa Discovery Bay; southwest corner of Discovery Bay Blvd. and Clipper Dr. 0 Comment
  JEPS112048  Adiantum jordanii D. G. Kelch 2005-1-21 05 .6 Contra Costa Crockett - West Valona Collected along railroad tracks in West Valona across from the decommissioned sewage treatment plant. On north-facing slopes with Quercus agrifolia and Heteromeles arbulifolia and Pinus pinea 8 Comment
  LA205595  Aesculus californica J. A. Ewan; 1936-5-31 9715 Contra Costa Wildcat Creek Comment
  POM136961  Aesculus californica Ivar Tidestrom 1895-06 s.n. Contra Costa [No location information on label.] Comment
  UC723807  Aesculus californica Joseph Andorfer Ewan 1935-2-3 9082 Contra Costa 0.25 mi below Orinda road bridge (Wildcat Creek); Wildcat Creek Comment
  SEINET12232133  Aesculus californica M. T. Dorett 1930-1 77 Contra Costa Marsh Creek Comment
  UC400161  Agoseris grandiflora var. grandiflora Ynes Mexia 1929-4-21 2370 Contra Costa in open fields of grass Moraga Valley Comment
  UCD84956  Agoseris grandiflora var. grandiflora Chuck Hughes 2010-5-21 228 Contra Costa About 0.8 mile northwest of Vasco Road. 335 Comment
  CAS-BOT-BC22969  Agoseris heterophylla H. M. Hall 1901-4-5 1726 Contra Costa Mt. Diablo 396 Comment
  CAS-BOT-BC22972  Agoseris heterophylla Alice Eastwood 1915-5-30 4472 Contra Costa Mt. Diablo Comment
  JEPS36280  Agoseris retrorsa W. L. Jepson 1921-5-22 9208 Contra Costa summit Mt. Diablo Comment
  CDA29002  Agrostis avenacea D. G. Kelch 2006-11-11 06 .505-B Contra Costa Carquinez Strait; Along RR tracks N of Pt Pinole in swale W of RR. Comment
  RSA666409  Agrostis avenacea Barbara Ertter, Brad Olson 1991-9-28 10831 Contra Costa San Pablo Reservoir between Orinda and El Sobrante 91 Comment
  CAS-BOT-BC127341  Agrostis exarata Mary L. Bowerman 1933-8-26 2413 Contra Costa Mount Diablo. At and below Lower Canyon Spring. 975 Comment
  UCD52550  Agrostis exarata var. pacifica Beecher Crampton 1959-9-3 5455 Contra Costa cleared bed of Bear Creek, 2 miles north of Orinda. Comment
  UCD149001  Agrostis pallens D. Kelch; Suzanne Latham, Matt Beyers 2009-6-3 09. 335 Contra Costa El Sobrante Ridge at end of Silver Belt Dr. 198 Comment
  RSA0033844  Agrostis stolonifera Barbara Ertter 2000-7-16 17383 Contra Costa Diablo Foothills Regional Park, along Pine Creek between Castle Rock Recreation Area and flood-control checkdam. 106 Comment
  UC2028465  Agrostis stolonifera Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15670 Contra Costa Martinez Regional Shoreline, south edge of Carquinez Strait Comment
  UC1818968  Aira caryophyllea Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa 1995-10-22 14527 Contra Costa Three Springs Trail on northeast side of Mt. Diablo, south of crest of Marsh Creek Rd. southeast of Clayton dried grasslands at base of trail. 304 Comment
  RSA720795  Aira caryophyllea var. cupaniana Mary L. Bowerman 1995-5-28 s.n. Contra Costa Mount Diablo. Knoll, N. of Wall Pt. Trail. Trail to Pine Pond from Wall Pt. fire rd. 305 Comment
  UC2028390  Alisma lanceolatum Barbara Ertter with Tony Morosco 1998-7-11 16375 Contra Costa Antioch Regional Shoreline under south end of Antioch Bridge, edge of water on riprap Comment
  UC692094  Alisma plantago-aquatica Mary L. Bowerman 1933-9-9 2429 Contra Costa Frog Pond Mount Diablo Comment
  UC116547  Allenrolfea occidentalis K. Brandegee 1885-1 Contra Costa near Antioch Antioch Comment
  CAS-BOT-BC175358  Allenrolfea occidentalis T. C. Fuller 1965-11-24 14321 Contra Costa On the slopes of the drainageway from Byron Hot Springs, s. side Byron Hot Springs Rd., 0.6 mi. s.w. of Byron-Tracy Hwy, ca. 1 mi. s.w. of Byron Comment
  UC3071  Allium falcifolium W. H. Brewer 1862-5-7 1060 Contra Costa summit Monte Diablo; summit of Mt. Diablo Comment
  UC3107  Allium serra Brewer 1022 Contra Costa Walnut Creek Comment
  UC72519  Allium serra Harley P. Chandler 1901-3-22 852 Contra Costa Martinez Comment
  RSA59637  Allium serra Verne Grant, Alva Grant 1950-5-13 8896 Contra Costa Saddle between N & Meridian peaks, Mt. Diablo. Comment
  UC2013015  Allium serra Barbara Ertter 1991-5-5 9782 Contra Costa Black Diamond Mines Regional Preserves S of Pittsburg, N-facing slope below Black Diamond Trail in SW corner of park. Comment
  UC692022  Allium unifolium Mary L. Bowerman 1932-5-6 1425 Contra Costa near road, Mitchell Canyon Mt. Diablo, Mitchell Canyon 243 Comment
  CAS-BOT-BC476607  Allium unifolium John Thomas Howell 1931-5-12 6469 Contra Costa Oakland Hills Comment
  SEINET11268247  Allophyllum gilioides Barbara Ertter, Tony Morosco 1998-4-12 16021 Contra Costa Mount Olympia on north side of Mount Diablo, Olympia Road down ridge west of summit.; 0 853 Comment
  UC2027998  Allophyllum gilioides Barbara Ertter with Tony Morosco 1998-4-12 16021 Contra Costa Mount Olympia on north side of Mount Diablo, Olympia Road down ridge west of summit. Comment
  SEINET12027584  Alnus rhombifolia L. S. Rose 1938-1 38307 Contra Costa Marsh Creek, 6 mi E of Clayton 152 Comment
  RSA181895  Alopecurus myosuroides George Murray 1964-5-24 s.n Contra Costa Near San Pablo Dam Comment
  UC2028370  Amaranthus albus Barbara Ertter 1998-6-20 16247 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Briones-Mount Diablo Trail SW of Old Borges Ranch Comment
  UC2027978  Amaranthus blitoides Barbara Ertter with Mary Bowerman 1996-11-1 15397 a Contra Costa North base of Mount Diablo, downstream from Mitchell Canyon parking lot. Comment
  POM300589  Amaranthus californicus Mary L. Bowerman 1935-9-13 3343 Contra Costa Frog Pond Comment
  SEINET3840792  Amaranthus cruentus Dean G. Kelch, Andrew G. Murdock 2005-6-27 5 .392 Contra Costa Carquinez Strait, Sixth street at Lillian Street in vegetable garden, Crockett, common garden weed 33 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
  UCD97779  Amaranthus retroflexus J. D. Sauer 1953-8-14 1640 Contra Costa Near Marsh Creek Lodge. Comment
  CDA9966  Ambrosia chamissonis D. G. Kelch, A. G. Murdock 2004-7-9 4 .312 Contra Costa Carquinez Strait; Rodeo Shore. Rodeo Shoreline. Comment
  SEINET11910975  Amelanchier alnifolia W. Knight, Knight, I. 1983-1 4741 Contra Costa Tilden Botanic Garden, Berkeley Comment
  JEPS102911  Ammannia coccinea Lisa Schultheis with Kevin Hintsa 1995-8-20 260 -95 Contra Costa Macedo Ranch, N edge, near house Mount Diablo Comment
  RSA0090926  Amsinckia eastwoodiae A. A. Heller 1941-3-24 15906 Contra Costa Byron Springs. Comment
  UC1094074  Amsinckia eastwoodiae Francia Chisaki 1952-3-13 201 Contra Costa 0.25 mi s of Hwy 50 on Mountain House Road Comment
  JEPS88005  Amsinckia intermedia Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8130 Contra Costa ca. 15 air mi. s.w. Stockton (w. and adjacent to Clifton Court Forebay) Comment
  SEINET12479829  Amsinckia intermedia R. R. Halse 1988-2-20 3541 Contra Costa Along State Hwy 4, near its junction with Balfour Road, S edge of Brentwood. 23 Comment
  RSA0068499  Amsinckia intermedia Katie Gallagher, Nick Jensen 2014-4-26 175 Contra Costa Las Trampas Regional Wilderness. 365 Comment
  RSA0090977  Amsinckia intermedia Barbara Ertter, Jim Jokerst, Dave Magney 1989-4-5 8130 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  RSA31867  Amsinckia intermedia A. A. Heller 1938-4-9 15014 Contra Costa In an orchard near Walnut Creek. Comment
  JEPS75462  Amsinckia lunaris P. F. Yorks 1976-4-25 507 -2 Contra Costa n. Briones Reservoir (ca. 1.5 km. s. of Bear Creek Rd. on hampton Rd. in Hampton Rd. Natural Reserve); Hampton Rd. Natural Reserve 170 Comment
  LA29456  Amsinckia lunaris Francia Chisaki; Peter Kamb 1952-5-4 2275 Contra Costa Bear Creek Road, 1.5 mi. E of Orinda-Richmond road (leaving this road ca. 1 mi. N of Orinda) Comment
  UC24601 Image available Amsinckia lycopsoides J. Burtt Davy 1895-4-7 887 Contra Costa Antioch; ; Antioch, Contra Costa Co. Comment
  UC1178247  Amsinckia lycopsoides Francia Chisaki, R. Bacigalupi 1957-3-27 910 Contra Costa 0.75 mi w of Antioch (along Somersville road between Borden Highway and Southern Pacific Railway) 19 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
  CDA5474  Anagallis arvensis A. G. Murdock, D. G. Kelch 2004-3-19 215 Contra Costa Carquinez Strait Region; Luzon. Sycamore Avenue just east of Rodeo/Hercules where train crosses Highway 4 (Luzon). Comment
  UC635714  Anagallis arvensis A. E. Borell 1928-3-18 26 Contra Costa w. slope Mt. Diablo Comment
  UC2027832  Ancistrocarphus filagineus Barbara Ertter with John Ginochio and Mary Bowerman 2001-5-8 17631 Contra Costa northwest flank of Mount Diablo, Ginochio property north of park boundary on Long Ridge. Comment
  CAS-BOT-BC46937  Androsace elongata subsp. acuta Mary L. Bowerman 1932-3-12 1116 Contra Costa Alamo Canyon, 50' above stream. 365 Comment
  UC1111009  Androsace elongata subsp. acuta Herbert L. Mason 1928-3-4 4166 Contra Costa Shell Ridge Comment
  UC162557  Androsace elongata subsp. acuta H. M. Hall 1901-4-5 Contra Costa Mount Diablo San Francisco Bay region, Mt. Diablo 1074 Comment
  CAS-BOT-BC400260  Anemopsis californica W. W. Carruth 1903-5-11 s.n. Contra Costa Nr. Walnut Creek Comment
  JEPS111622  Angelica californica D. G. Kelch 2004-7-9 04 .308B Contra Costa Vaca Canyon Vaca Canyon 165 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
  CAS-BOT-BC26282  Antirrhinum elmeri A. D. E. Elmer 1903-6-1 4809 Contra Costa Mount Diablo Comment
  JEPS14826  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Rimo Bacigalupi with L. R. Heckard 1956-7-17 5732 Contra Costa just n Hampton Road summit (on Pinole Creek side of grade from Briones Valley School (not Briones Valley!) to Bear Creek) 220 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
  UC692207  Aquilegia eximia Mary L. Bowerman 1933-6-2 2331 Contra Costa Donner Canyon Mount Diablo Comment
  UC1614150  Aquilegia formosa Charles M. Belshaw 1935-6-12 691 Contra Costa about 10 mi n of Livermore (on Livermore-Clayton Road just n of crest); Livermore-Clayton Road 609 Comment
  UC692184  Aquilegia formosa Mary L. Bowerman 1931-5-23 896 Contra Costa Alamo Canyon Mount Diablo Comment
  UC10112 Image available Arabis breweri W. H. Brewer 1862-5-14 1086 Contra Costa East Peak, Mt. Diablo Comment
  UC2028457  Aralia californica Barbara Ertter with Joanne Kerbavaz and Mary Bowerman 2000-8-20 17513 Contra Costa North side of Mount Diablo, Big Spring below Prospectors Gap Road at head of Donner Canyon Comment
  SBBG50848  Arbutus menziesii A. Hartman 1960-4-19 9 D Contra Costa North Gate Rd, Mt Diablo St Park 609 Comment
  UC400150  Arbutus menziesii Ynes Inexia 1929-4-21 2382 Contra Costa Moraga Valley Comment
  UC692041  Arceuthobium campylopodum Mary L. Bowerman 1930-6-22 374 Contra Costa above main canyon (Mitchell Canyon Trail); Mount Diablo Comment
  UCSC006431  Arctostaphylos Randall Morgan 1991-4-28 s.n. Contra Costa Alamo, S-Gate Rd, 1/4 mi beyond Curry Pt, Mt. Diablo Comment
  SEINET11989149  Arctostaphylos andersonii var. auriculata B. A. Stein 1981-1 460 Contra Costa Mt. Diablo State Park, Rock City Campground 457 Comment
  CAS-BOT-BC24121  Arctostaphylos auriculata Lewis S. Rose 1934-2-28 34039 Contra Costa S. slope Mt. Diablo, 8 mi. NE Danville Comment
  CAS-BOT-BC24123  Arctostaphylos auriculata Brandegee 1889-1-1 s.n. Contra Costa Antioch Comment
  POM300732  Arctostaphylos auriculata Mary L. Bowerman 1932-1-23 1075 Contra Costa Sycamore Canyon, east fork: East edge of chaparral near canyon bottom. Comment
  RSA164647  Arctostaphylos auriculata Percy C. Everett 1963-11-19 24549 Contra Costa Mt Diablo. 457 Comment
  UC549567  Arctostaphylos auriculata J. E. Adams 1934-3-19 678 Contra Costa Mt. Diablo Comment
  UC549569  Arctostaphylos auriculata J. E. Adams 1934-10-6 852 Contra Costa Rock City Mt. Diablo Comment
  UC692483  Arctostaphylos auriculata Mary L. Bowerman 1931-9-20 1044 Contra Costa w edge Rock City; Mount Diablo Comment
  UC83034  Arctostaphylos auriculata Katharine Brandegee 1889-1 Contra Costa Antioch Comment
  UCD50260  Arctostaphylos auriculata Edward Lee 1936-1-12 1713 Contra Costa Immediately south of Nortonville. Comment
  UCD50264  Arctostaphylos auriculata Roman Gankin 1968-11-14 1309 Contra Costa Ca. 300 yds. above the road at Somersville. Comment
  CAS-BOT-BC23593  Arctostaphylos crustacea Walter Knight 1980-3-6 3719 Contra Costa Redwood Regional Park, East Ridge Trail 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-BC23591  Arctostaphylos crustacea Walter Knight; Irja Knight 1980-3-16 3715 Contra Costa Sobrante Ridge between Heavenly Ridge Lane and Castro Ranch road. Comment
  CAS-BOT-BC23600  Arctostaphylos crustacea Steve Abbors 1980-3-24 s.n. Contra Costa Chamise Trail. Las Trampas Ridge, Las Trampas Regional Wilderness. Comment
  SEINET11987135  Arctostaphylos crustacea S. W. Edwards 1981-1 1001 Contra Costa Briones Regional Park, on ridge facing Russell Tree Farm Comment
  SEINET11989662  Arctostaphylos crustacea N. Havlik, Knight, W. 1982-1 4548 Contra Costa Briones Regional Park adjacent to Russell Tree Farm 328 Comment
  UC1120188  Arctostaphylos glandulosa subsp. glandulosa R. C. Wilson 1935-3-15 8157 Contra Costa 1 1/2 mi w Cave Pt.; Mt. Diablo Quadrangle Comment
  UC1120336  Arctostaphylos glandulosa subsp. glandulosa R. C. Wilson 1935-2-26 105 Contra Costa 1 mi sw Nortonville; Mount Diablo Quadrangle Comment
  CAS-BOT-BC24656  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-BC24658  Arctostaphylos glauca H. E. McMinn s.n. Contra Costa Mt Diablo, Curry Canyon. Comment
  CAS-BOT-BC24660  Arctostaphylos glauca John Thomas Howell 1926-3-7 1674 Contra Costa Mt. Diablo. Comment
  JEPS38706  Arctostaphylos glauca W. L. Jepson 7592 Contra Costa Donner Canyon Mt. Diablo 243 Comment
  JEPS38917  Arctostaphylos glauca Mary L. Bowerman 1933-3-11 1748 Contra Costa in gully nw park entrance (outer s face of ridge); Mount Diablo, Rock City Ridge 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
  RSA632813  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27589 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  RSA632822  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27578 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  JEPS78231 Image available Arctostaphylos manzanita subsp. laevigata James Roof 1009 Contra Costa along Black Diamond Trail Black Diamond Regional Reserve; Black Diamond Trail, of the Black Diamond Regional Preserve, Contra Costa Co. 121 Comment
  UC549757  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 687 Contra Costa Mt. Diablo Comment
  UC692220  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1932-9-5 1544 Contra Costa large spur on meridian which heads into Sycamore Canyon (crest of ridge); Mount Diablo Comment
  UC692231  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1932-9-5 1545 Contra Costa large spur on meridian which heads into Sycamore Canyon; Mount Diablo Comment
  UC692516  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1931-3-1 541 Contra Costa e meridian (w part of chaparral); Mount Diablo, Inner Black Hills Comment
  UC2028052  Arctostaphylos manzanita subsp. laevigata Barbara Ertter with Ann Dennis 1998-1-25 15907 Contra Costa Donner Canyon on north side Mount Diablo, Middle Trail/Falls Trail. Comment
  UC692224  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1938-6-24 3693 Contra Costa road 8.9 mi from North Gate (crest of ridge above road, below Pines Picnic Area); Mount Diablo 792 Comment
  POM193975  Arctostaphylos manzanita subsp. manzanita J. T. Howell 1926-3-7 1665 Contra Costa Mt. Diablo on old wagon road. Comment
  POM300725  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1933-3-25 1765 Contra Costa Emmons Canyon (off Stone Valley), west fork. Comment
  HSC93963  Arctostaphylos pallida C. Newberry 1994-3-12 7163 Contra Costa Huckleberry Botanic Regional Preserve, Skyline Trail 244 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
  JEPS19848  Arctostaphylos tomentosa subsp. crustacea W. L. Jepson 1914-1-31 5718 Contra Costa Moraga Ridge Oakland Hills 457 Comment
  JEPS42609  Arctostaphylos tomentosa subsp. crustacea W. L. Jepson 1944-8-5 27547 Contra Costa Moraga Ridge Oakland Hills Comment
  JEPS46271  Arctostaphylos tomentosa subsp. crustacea W. L. Jepson 1943-6-19 20850 Contra Costa Moraga Ridge Comment
  UC1120116  Arctostaphylos tomentosa subsp. crustacea C. M. Belshaw 1936-2-16 1590 Contra Costa 2 1/2 mi nw Lafayette; Concord Quadrangle, Lafayette Ridge Comment
  UC549464  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 629 Contra Costa Moraga Ridge Comment
  UC2046013  Arctostaphylos viscida subsp. viscida Stephen W. Edwards July, 2012 s.n. Contra Costa Martinez. Comment
  POM87995  Aristolochia californica H. M. Hall 1900-3-23 s.n. Contra Costa Lauterwasser Creek Comment
  UC697153  Arnica discoidea Mary L. Bowerman 1933-5-22 2173 Contra Costa Inner Black Hills, (w of 1970, sheltered gully on n faced) Mount Diablo, Black Hills Comment
  CAS-BOT-BC84954  Artemisia californica Mary L. Bowerman 1931-11-21 1069 Contra Costa Mount Diablo, donner Canyon, east flank. Comment
  JEPS36967  Artemisia californica W. L. Jepson 1916-10-22 6852 a Contra Costa Las Trampas Ridge southern Contra Costa County, Las Trampas Ridge Comment
  RSA128376  Artemisia californica Peter H. Raven 1950-7-5 2500 Contra Costa Above Nortonville Comment
  CDA42352  Artemisia douglasiana D. G. Kelch, Vince Guise 2012-7-26 12 .238 Contra Costa Wildcat Canyon Park, Alvarado Unit. Comment
  JEPS111683  Artemisia douglasiana D. G. Kelch 2003-8-13 03 .139 Contra Costa Pinole Creek 68 Comment
  CAS-BOT-BC90297  Artemisia douglasiana Vincent Jones 1920-8-20 s.n. Contra Costa Vallejo Comment
  SEINET11773093  Arum italicum F. Tahbaz, Ghavamzadeh, G. 1992-1 416 Contra Costa Orinda, by creek on Moraga Way, across street from Camino Moraga Comment
  SEINET10779730  Asclepias californica subsp. greenei D. G. Nelson 1937-4-24 Nelson 520 Contra Costa On Marsh Creek Road, between Byron and Clayton Comment
  JEPS100125  Asclepias fascicularis A. Langston 2003-7-24 AL 69 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCR16092  Asclepias fascicularis Robin Maetche, Geoffrey Matthews 1971-7-4 s.n. Contra Costa 1 mi below North [Gate Road] entrance to Mt. Diablo State Park, Concord 427 Comment
  SEINET10741688  Asclepias fascicularis Barbara J. Ertter, M. Bowerman; Lisa Schultheis 1996-7-5 Ertter 14916 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek, streamside vegetation. Comment
  UC691841  Asclepias fascicularis Mary L. Bowerman 1935-6-28 3162 Contra Costa Old Government Trail Mount Diablo 518 Comment
  UCD121325  Asclepias fascicularis Francis D. Galey 1989-10-31 s.n. Contra Costa ca. 4-5 miles southwest of Byron, upper ranch area of Vaquero Farms, southeast of Diablo Canyon Road. Comment
  CAS-BOT-BC180529  Astragalus asymmetricus Katharine Brandegee 1908-1-1 s.n. Contra Costa Near Antioch. Comment
  POM19312  Astragalus asymmetricus Katherine Brandegee 1908-1 s.n. Contra Costa Near Antioch Comment
  UC13388  Astragalus asymmetricus F. T. Bioletti 1892-1 Contra Costa Byron Comment
  CAS-BOT-BC177882  Astragalus didymocarpus var. didymocarpus M. K. C. 1886-5-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC177883  Astragalus didymocarpus var. didymocarpus Brandegee 1889-5-1 s.n. Contra Costa Antioch Comment
  JEPS68949  Astragalus gambelianus Edward Lee 1935-3-10 1278 Contra Costa Kirker Pass, Donovan Rd. (w. watershed of Kirker Creek) Comment
  UC83409  Astragalus gambelianus Katharine Brandegee april 1889 Contra Costa Antioch Comment
  CAS-BOT-BC17453  Athysanus pusillus M. K. Curran 1883-4-1 s.n. Contra Costa Antioch. Comment
  UCD97257  Atriplex argentea var. expansa Robert E. Preston; Eva Buxton 1994-8-4 675 Contra Costa east end of Briones Valley, west of Marsh Creek Reservoir. 60 Comment
  UC219420  Atriplex argentea var. mohavensis H. M. Hall 1922-5-6 11803 Contra Costa near Byron (alkaline fields); near Byron Comment
  UC217196  Atriplex argentea var. mohavensis H. M. Hall 1919-11-14 10972 Contra Costa Byron Byron (where road turns from highway to Springs Hog Wallows) Comment
  UC110216  Atriplex coronata T. S. Brandegee May 1883 Contra Costa Marsh Creek Comment
  CHSC98938  Atriplex coronata var. coronata Samantha Mackey Hillaire 2007-7-17 1243 b Contra Costa Briones Valley, ~0.2 mile west of Marsh Creek Reservoir. 60 Comment
  POM203039  Atriplex joaquinana J. T. Howell 1934-4-8 11823 Contra Costa South of Antioch, Contra Costa County Comment
  UCD78167  Atriplex joaquinana Robert E. Preston 2008-4-24 2619 Contra Costa 4.8 mi SSE of Byron, ca. 300 ft E of Vasco Rd 12 Comment
  UC1607605  Atriplex lentiformis Barbara Ertter 1990-10-24 9686 Contra Costa Martinez Regional Shoreline on Carquinez Strait (beaten saline soil along path through saltmarsh); Martinez Regional Shoreline on Carquinez Strait Comment
  JEPS25154  Atriplex leucophylla G. Thomas Robbins with John Weiler 1959-5-23 4024 Contra Costa on breakwater northwestern extension Brooks Island (Richmond); San Francisco Bay, , Brooks Island Comment
  JEPS87970  Atriplex prostrata Barbara Ertter with Elizabeth Neese 1988-10-15 7979 Contra Costa in salicornia marsh w. of I-580 in El Cerrito (w side along Rydin Road n of Central Avenue; edge of roadbank and marsh) Comment
  JEPS78625  Atriplex prostrata Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3280 Contra Costa Browns Island , Browns Island (Botany Cove) Comment
  SEINET11268190  Atriplex semibaccata Barbara Ertter 1990-9-30 9655 Contra Costa NW side of county, SE of Hilltop Mall in N Richmond. Near Day's Inn; 0 Comment
  UCD97697  Atriplex semibaccata Clyde L. Elmore 1964-10-6 s.n. Contra Costa 1/2 mile south of Orwood Road, in Orwood Resort, 4-5 miles east of Brentwood. Comment
  POM183312  Atriplex subspicata J. T. Howell 1931-10-31 8163 Contra Costa Bay Point. Comment
  CAS-BOT-BC145879  Avena fatua Beecher Crampton 1956-5-14 3418 Contra Costa Cemetery, 0.5 mile northwest of Martinez, road to Crocket. Comment
  SEINET5607235 Image available Avena fatua Rachel Van Noord 1998-1 12 Contra Costa Dinosaur Hill Park, Pleasant Hill Comment
  JEPS112257  Azolla filiculoides Andrew G. Murdock 2004-4-30 311 Contra Costa In Pinole Creek near Pig Sale. Comment
  CAS-BOT-BC98764  Baccharis douglasii John Thomas Howell 1926-1-17 1627 Contra Costa Between Cashion and las Trampas Ridge Comment
  UC1618405  Baccharis glutinosa Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10696 Contra Costa n. Pittsburg (Browns Isl., near confluence of Sacramento & San Joaquin rivers, opposite Pittsburg Marina, flat in center of w. end of island); Browns Island Comment
  SEINET11261322  Baccharis glutinosa Kaye H. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4963 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough. SE portion of Bethel Slough.; 0 610 Comment
  JEPS75551  Baccharis pilularis P. F. Yorks 1921-9-11 369 Contra Costa 1.6 km s, on Hampton Road in Hampton Road Natural Reserve Bear Creek Road ((n of Briones Reservoir)); Hampton Road Natural Reserve 180 Comment
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Dec 21 2009
  CHSC23341  Baccharis salicifolia Willis Ball 1975-3-26 514 Contra Costa Contra Loma Regional Park. In area #2. On W side of lake ca. 30 yds. N of boat ramp on W side of lake. 30 Comment
  CAS-BOT-BC98191  Baccharis salicifolia Ira L. Wiggins 1930-4-18 4600 Contra Costa Near ferr, Jersey Island Comment
  CAS-BOT-BC106560  Balsamorhiza deltoidea G. L. Stebbins 1937-5-1 2108 Contra Costa North facing ridge, about 1 mile south of Somersville. 365 Comment
  PASA1585  Balsamorhiza deltoidea Annetta Carter 1929-3-31 Contra Costa Hills north of Mt. Diablo, near Clayton Comment
  UC691250  Barbarea orthoceras Mary L. Bowerman 1933-5-3 1972 Contra Costa due s Mount Diablo summit ((Meridian Peak)); Mount Diablo 731 Comment
  UC691254  Barbarea orthoceras Mary L. Bowerman 1933-4-22 1899 Contra Costa w of Cave Point (s-face); Mount Diablo, Inner Black Hills Comment
  CDA15255  Bellardia trixago G. F. Hrusa, D. Crowe 1998-5-8 14386 Contra Costa Sacramento Delta; E end of Dow Chemical property in Pittsburg. Comment
  CDA39043  Bellardia trixago D. G. Kelch 2011-6-5 11 .571 Contra Costa Carquinez Strait; South of Crockett, south of Cummings Skyway. Comment
  JEPS108533  Bellardia trixago Lisa Schultheis with Kevin Hintsa 1995-4-25 70 -95 Contra Costa Mount Diablo. Along connector trail between Pine Canyon and the Brioines/Mount Diablo Trail Comment
  UC103481  Bellardia trixago Edw. L. Greene May 1889 Contra Costa near Martinez Comment
  UCD122096  Bellardia trixago Ira J. Condit 1968-4-1 s.n. Contra Costa Walnut Creek. Comment
  UC456081  Bidens laevis I. J. Condit 1908-8-19 Contra Costa Antioch 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
  SEINET3386108 Image available Blennosperma californicum Lewis S. Rose 1933-3-10 33008 Contra Costa Marsh creek, open hillsides Comment
  JEPS104714  Blennosperma nanum John L. Morrison 1937-3-6 1972 Contra Costa low hills S of Antioch Comment
  CAS-BOT-BC492906  Blennosperma nanum Lewis S. Rose 1932-3-15 3279 Contra Costa Byron Comment
  JEPS18383  Blennosperma nanum var. nanum Rimo Bacigalupi with F. Chisaki 1957-3-27 5761 Contra Costa 1/2 mi w, 3 1/2 mi se of Antioch, jct of Lone Tree Way and Hillcrest Ave Lone Tree School 39 Comment
  UC34577  Blennosperma nanum var. nanum H. M. Hall 1902-3-22 1695 Contra Costa Martinez San Francisco Bay Region Comment
  UC579840  Blennosperma nanum var. nanum Annetta Carter 1937-3-7 1223 Contra Costa one mile e Danville; Sycamore Valley Comment
  UC691494  Blennosperma nanum var. nanum Mary L. Bowerman 1932-3-12 1107 Contra Costa field a little e of, s of Diablo Bret Harte Memomorial Comment
  UC762545  Blennosperma nanum var. nanum R. F. Hoover 1938-2-27 2784 Contra Costa Danville Comment
  SD211539  Blennosperma nanum var. nanum Barbara Ertter 1992-3-8 10908 Contra Costa Byron Springs Road 4-5 miles South of junction with J4, near Armstring Road Comment
  RSA121587  Blepharizonia laxa G. T. Nordstrom 1937-10-28 s.n. Contra Costa 1.6 miles NNE of Somersville 183 Comment
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Dec 16 2012
  CAS-BOT-BC100334  Blepharizonia plumosa Joanne Dean 1978-9-17 s.n. Contra Costa Byron Comment
  CAS-BOT-BC100339  Blepharizonia plumosa T. S. Brandegee Sept. 1883 s.n. Contra Costa Antioch Comment
  JEPS18823  Blepharizonia plumosa R. F. Hoover 1937-8-31 2704 Contra Costa Pittsburg Comment
  UCD129618  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
  SBBG2385  Boechera breweri subsp. breweri H. and M. Dearing 1940-3-20 4125 Contra Costa near summit of Mt Diablo Comment
  UC614620  Boechera breweri subsp. breweri L. Constance, J. L. Morrison 1938-4-5 2192 Contra Costa near Mitchell Canyon (on w slope of Mount Diablo); Mount Diablo 609 Comment
  CAS-BOT-BC15957  Boechera breweri subsp. breweri H. E. McMinn 1923-3-6 880 Contra Costa Near summit of Mount Diablo. Comment
  OBI15220  Boechera breweri subsp. breweri H. E. McMinn 1922-6-2 83 Contra Costa Summit of Mt Diablo, a little N of summit Comment
  JEPS78632  Bolboschoenus maritimus Walter Knight and Harry Reeves 1979-8-25 3408 Contra Costa near Antioch (Contra Loma Regional Park below dam near golf course); near Antioch, Contra Loma Regional Park 22 Comment
  JEPS2846  Bolboschoenus maritimus subsp. paludosus J. Burtt Davy 1897-9-4 4075 Contra Costa Stege; ; Stege, Contra Costa Co. Comment
  UCD140044  Bolboschoenus maritimus subsp. paludosus M. Wiesendanger 1926-6-1 1529 Contra Costa Richmond. Comment
  UC692372  Bowlesia incana Mary L. Bowerman 1933-4-22 1889 Contra Costa Mount Diablo, Curry-Cave Point Trail Mount Diablo; , Curry-Cave Point Trail 426 Comment
  UC691083  Brassica nigra Mary L. Bowerman 1938-5-25 3633 Contra Costa Mount Diablo. North Road 2 miles from North Gate. 182 Comment
  UCD164653  Brassica nigra Henry House 1995-5-20 1995- 22 Contra Costa Approximately 50 m from Walnut Blvd, about 1.25 km south of Marsh Creek Road. 30 Comment
  CAS-BOT-BC36725  Brassica rapa R. E. Frenkel 1964-9-19 851 Contra Costa On California Highway 21, Market Plaza Center, Alamo. 79 Comment
  UC1818971  Brickellia californica Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa 1995-10-22 14534 Contra Costa Three Springs Trail on northeast side of Mt. Diablo, woods above ranch. 365 Comment
  JEPS108535  Briza maxima Lisa Schultheis 1995-4-29 76 -95 Contra Costa along Knobcone Point trail, just after Curry Point trail splits into Knobcone and BlackHawk trails Comment
  JEPS7645  Brodiaea elegans subsp. elegans W. L. Jepson 1918-6-5 7599 Contra Costa Donner Canyon Mount Diablo, Donner Canyon 457 Comment
  UC1618319  Brodiaea elegans subsp. elegans Barbara Ertter 1990-5-19 8995 Contra Costa n Lafayette (edge of ridge road); Briones Regional Park, Lafayette Ridge 365 Comment
  CDA23631  Bromus carinatus D. G. Kelch, D. A. Weinstein 2008-4-25 8 .089 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
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Jan 7 2016
  SEINET7106148  Bromus carinatus Beecher Crampton 1960-3-29 5481 Contra Costa City of El Cerrito, corner of Carlon and Lassen Boulevards.; 0 Comment
  UC1948971  Bromus carinatus William J. Ferlatte, L. Maynard Moe 1970-4-27 1237 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC1103283  Bromus carinatus var. carinatus J. P. Tracy 1900-3-24 614 Contra Costa San Francisco Bay Region, Point Richmond, Rail Road Track Point Richmond; San Francisco Bay Region, Point Richmond 3 Comment
  UC53630  Bromus carinatus var. carinatus Joseph Burtt Davy 1900-3-24 6543 Contra Costa Potrero Comment
  CAS-BOT-BC149543  Bromus carinatus var. carinatus David C. Rentz 1968-4-29 5 Contra Costa Between homes near Oak View Avenue on Ocean View Avenue. Kensington. Comment
  CHSC21623  Bromus catharticus Willis Ball 1975-3-25 503 Contra Costa Contra Loma Regional Park. In area #1. Under olive trees in picnic area ca. 50 yds w of main parking lot ca. 50 yds s of the lake. 36 Comment
  CDA28880  Bromus diandrus D. G. Kelch 2006-5-7 6 .162 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  UC2028404  Bromus diandrus Barbara Ertter with Christopher Baysdorfer 1998-5-10 16113 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, along Ohlone Trail Comment
  UC50599  Bromus diandrus Jos. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  CAS-BOT-BC156064  Bromus diandrus Mary L. Bowerman 1935-4-19 2876 Contra Costa Mount Diablo. Road about 7miles from North Gate, ridge west of the power poles, above the road junction. 701 Comment
  UC2028492  Bromus diandrus Barbara Ertter 1998-5-3 16067 a Contra Costa SE end of Wall Point Road on southwest flank of Mount Diablo Comment
  CHSC116659  Bromus hordeaceus Lowell Ahart; Josephine Guardino 2016-4-19 20791 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
  UCD58642  Bromus hordeaceus Beecher Crampton 1956-5-14 3379 Contra Costa Head of Horse Valley. 5 miles south of Antioch. Comment
  UC692367  Bromus laevipes Mary L. Bowerman 1935-5-16 3011 Contra Costa behind Gabriel-Hinks (e side of North Peak, Mount Diablo); Mount Diablo, North Peak 289 Comment
  CAS-BOT-BC162450  Bromus laevipes Mary L. Bowerman 1935-5-16 3011 Contra Costa Mount Diablo. Behind Gabrile-Hinks (est side of North Peak). 289 Comment
  UCD36914  Bromus madritensis Beecher Crampton 1956-5-14 3385 Contra Costa 6.7 miles southwest of city of Antioch, along ridge between old coal mining towns of Somersville and Nortonville. Comment
  CAS-BOT-BC162352  Bromus madritensis Mary L. Bowerman 1935-5-16 2991 Contra Costa Mount Diablo. Russelman Park, at end of road. Comment
  CAS-BOT-BC162353  Bromus madritensis Mary L. Bowerman 1935-4-19 2863 Contra Costa Mount Diablo. Near Turtle Rock. 457 Comment
  UC691209  Bromus madritensis subsp. madritensis Mary L. Bowerman 1935-5-16 2986 Contra Costa Mount Diablo, Russelman Park Russelman Park; Mount Diablo, Russelman Park 381 Comment
  UC692348  Bromus madritensis subsp. rubens Mary L. Bowerman 1933-5-2 1944 Contra Costa below Pioneer Camp (Mount Diablo); Mount Diablo 762 Comment
  POM300687  Bromus rubens Mary L. Bowerman 1933-3-18 1751 Contra Costa Mt. Diablo below the chaparral belt, a little east of the meridian 549 Comment
  UC692339  Bromus trinii Mary L. Bowerman 1933-4-15 1874 c Contra Costa Canyon s of Arroy del Cerro (Mount Diablo, 250 ft below spring); Mount Diablo Comment
  UC2028525  Calamagrostis rubescens Barbara Ertter 1997-11-1 15881 Contra Costa South side Mount Diablo, near Balancing Rock on Knobcone Point Road Comment
  CAS-BOT-BC185034  Calamagrostis rubescens Virginia E. Long 1933-6-14 222 a Contra Costa Mount Diablo. Inner Black Hills. 563 Comment
  POM257267  Calamagrostis rubescens Virginia Long 1933-6-14 222 a Contra Costa Mt. Diablo. Inner Black Hills. Comment
  UC1980316  Calamintha sylvatica subsp. ascendens Barbara Ertter with David Gowen 2011-10-6 20918 Contra Costa Tilden Regional Park in hills east of Berkeley; lower Vollmer Peak Trail southeast of Big Spring picnic area Comment
  CAS-BOT-BC233994  Calandrinia breweri R. F. Hoover 1939-4-13 4019 Contra Costa Head of Markley Canyon (west branch) Comment
  UC765774  Calandrinia breweri R. F. Hoover 1939-4-13 4019 Contra Costa head west branch Markley Canyon Comment
  JEPS99971  Calandrinia ciliata G. Smick 2003-4-8 GAS 134 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC85557  Calandrinia ciliata Katharine Brandegee May, 1889 Contra Costa Antioch Comment
  CAS-BOT-BC438365  Calandrinia ciliata unspecified No date on label s.n. Contra Costa Antioch Comment
  UC692306  Calandrinia ciliata Mary L. Bowerman 1931-2-22 522 Contra Costa Sycamore Ridge Mount Diablo Comment
  UC1050752  Calceolaria integrifolia N. Floy Bracelin 1942-6-28 2166 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1563731  Callitriche longipedunculata Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8144 Contra Costa West and adjacent Clifton Court Forebay, ca. 15 air miles SW od Stockton. SE Contra Costa County. Comment
  UC2028247  Calochortus argillosus Barbara Ertter, Mary Bowerman, Lisa Schultheis 1998-8-21 16404 Contra Costa North Gate Road on northwest flank of Mount Diablo, 1.6 miles south of park entrance kiosk (site of 16153). Comment
  JEPS61679  Calochortus luteus W. L. Jepson 1921-5-22 9216 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC132491  Calochortus pulchellus Mrs. T. A. McGlynn 1925-6-14 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC132496  Calochortus pulchellus Alice Eastwood 1914-5-30 4442 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC132500  Calochortus pulchellus Harold V. Manor 1913-5-18 s.n. Contra Costa Mt. Diablo Comment
  HSC93902  Calochortus pulchellus C. Newberry 1994-4-30 7250 Contra Costa Mt. Diablo State Park, trail from Mitchell Canyon Parking to Donner Creek 900 Comment
  JEPS17770  Calochortus pulchellus Alice Eastwood 1899-5-21 Contra Costa Mount Diablo Comment
  JEPS61708  Calochortus pulchellus W. L. Jepson 1923-6-10 10001 Contra Costa Upper Marsh Creek Mt. Diablo Comment
  POM169905  Calochortus pulchellus A. D. E. Elmer 1903-06 s.n. Contra Costa Mount Diablo Comment
  POM170033  Calochortus pulchellus H. M. Hall 1910-5-30 10132 Contra Costa Mt. Diablo, north slope near Pine Canyon 366 Comment
  RSA29584  Calochortus pulchellus Joseph A. Ewan 1934-4-8 8774 Contra Costa Mt. Diablo: South Fork Marsh Creek. Comment
  SBBG52901  Calochortus pulchellus J. D. Hobson 1962-3-9 36 Contra Costa Mt Diablo Comment
  UC204208  Calochortus pulchellus A. D. E. Elmer Jun 1903 4631 Contra Costa Mount Diablo Comment
  CAS-BOT-BC132495  Calochortus pulchellus Elizabeth McClintock; Wayne Roderick 1967-5-30 s.n. Contra Costa Marsh Creek Road, n. base of Mt. Diablo 76 Comment
  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-BC132535  Calochortus umbellatus Mary L. Bowerman 1931-3-22 612 Contra Costa Knoll between Cave and Oyster Points Comment
  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
  UC2027942  Calycadenia truncata Barbara Ertter 1997-9-7 15799 Contra Costa North side Mount Diablo, Falls Trail in Donner Canyon. Comment
  UC691865  Calystegia Mary L. Bowerman 1935-6-1 3115 Contra Costa Meridian in loop of road on ridge s of the summit parking area (Mount Diablo); , Meridian Peak on ridge s of the summit 1097 Comment
  UC691846  Calystegia malacophylla subsp. pedicellata Mary L. Bowerman 1935-6-8 3126 Contra Costa Meridian Peak Summit , Meridian Peak summit (Mount Diablo) 1170 Comment
  UC1948945  Calystegia purpurata William J. Ferlatte, L. Maynard Moe 1970-4-27 1236 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC1794950  Calystegia purpurata subsp. purpurata R. K. Brummitt, J. Strother and B. Baldwin 1997-5-27 19605 Contra Costa Mount Diablo, W side, Deer Flat Road 800 Comment
  UCD150753  Calystegia sepium James A. Neilson Jr. 1972-11-2 3612 Contra Costa 2 miles NW of Concord, at intersection of Hwy 4 and Walnut Creek. 7 Comment
  CAS-BOT-BC199277  Calystegia sepium subsp. limnophila Malcom A. Nobs; S. Galen Smith 1949-7-8 941 Contra Costa Otto's Black Bass Resort, 4 miles north of Kingston Comment
  CDA15288  Calystegia sepium subsp. limnophila G. F. Hrusa, D. Crowe, R. York 1998-7-17 14728 Contra Costa Sacramento Delta; Betw. Dow Ecological Reserve and San Joaquin R. Sheet 1 of 2. Comment
  RSA710249  Calystegia subacaulis R. K. Brummitt, Barbara Ertter, N. A. Brummitt 1998-5-6 19788 Contra Costa Mt. Diablo. NE side, Donner Track. 400 Comment
  UC2029024  Calystegia subacaulis Barbara Ertter 1999-7-17 16760 Contra Costa El Cerrito, west side of Arlington Ave. in small triangle of land between Moeser Ln. and Terrace Dr., among mowed Avena. Comment
  UC198869  Camissonia campestris subsp. campestris Chesnut and Drew 1887-4-18 Contra Costa Antioch Comment
  RSA135377  Camissonia contorta Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley. Comment
  RSA22373  Camissonia contorta L. S. Rose 1938-5-8 38223 Contra Costa Antioch 15 Comment
  JEPS125935  Camissonia ignota D. W. Taylor 2001-3-22 17616 Contra Costa Kreyenhagen Hills; Cedar Canyon, tributary to Zapato Chino Canyon, along southern flank of ridge forming divide with Garcia Canyon to the north; ca 5 air miles W of Avena Comment
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Jun 18 2019
  RSA186560  Camissonia micrantha Peter H. Raven 1963-3-29 18143 Contra Costa About 1 mile south of Oakley on State Highway 4 at junction of Brownstone Road Comment
  UC1784913  Camissoniopsis hirtella Barbara Ertter with Mary Bowerman 1994-6-19 12842 Contra Costa Mount Diablo State Park E of Walnut Creek; Muir Picnic Area on Summit Road 1005 Comment
  JEPS99558  Camissoniopsis intermedia Mary Bowerman 1995-5-28 Contra Costa Mount Diablo, knoll on N side of Wall Point Trail 1/2 encircled on W and N sides by road from Macedo Ranch to Pine Pond. 304 Comment
  UC874075  Camissoniopsis intermedia Lewis S. Rose 1941-5-15 41229 Contra Costa w. slope Mt. Diablo 274 Comment
  UC140387  Camissoniopsis micrantha C. F. Baker 1903-4-25 2808 Contra Costa sandhills Antioch Comment
  UC635408  Camissoniopsis micrantha H. L. Mason 1932-3-20 6850 Contra Costa sand hills near Antioch Comment
  UC1051115  Campanula bononiensis N. Floy Bracelin 1943-9-5 2498 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  SEINET10461956  Campanula exigua Joseph W. Congdon 1896-5-30 Congdon s.n. Contra Costa Summit of Diablo Comment
  SEINET10461961  Campanula exigua Edward L. Greene 1892-6-20 Greene s.n. Contra Costa Mount Diablo Comment
  UC1050327  Campanula grossekii N. Floy Bracelin 1941-8-17 1572 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1051246  Campanula isophylla N. Floy Bracelin 1942-9-9 2279 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS111861  Capsella bursa-pastoris D. G. Kelch 2004-3-12 04 .27 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road 220 Comment
  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
  CAS-BOT-BC37395  Cardamine californica Robert Francis Hoover 1938-2-21 2754 Contra Costa Point Richmond. Comment
  UC1126894  Cardamine californica R. C. Wilson 1935-3-27 146 Contra Costa Oyster Pt. Mt. Diablo Quad., Oyster Pt. Comment
  UC905262  Cardamine californica var. californica J. A. Rattenbury 1949-3-10 128 Contra Costa half mi e Oakland Tunnel; e of Oakland Tunnel 243 Comment
  POM272925  Cardamine californica var. integrifolia Lyman Benson 1935-3-16 6277 Contra Costa Mitchell Canyon near Clayton; Mt. Range: Mt. Diablo; Watershed: Walnut Creek. 244 Comment
  POM203648  Cardamine californica var. integrifolia J. T. Howell 1933-5-14 11255 Contra Costa Hills east of St. Mary s college Comment
  RSA721865  Cardamine hirsuta Barbara Ertter, Gary Schoolcraft 1996-4-7 14576 Contra Costa Molate Beach Park on San Francisco Bay N of San Rafael Bridge; S end of parking area. Comment
  JEPS111068  Cardamine oligosperma Lee Echols 2003-3-7 s.n. Contra Costa N of Lark Drive in S portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  POM300574  Cardamine oligosperma Mary L. Bowerman 1932-3-6 1100 Contra Costa Sycamore Canyon, east fork: Near trail. Comment
  UC2070559  Cardamine oligosperma var. oligosperma Barbara Ertter 2003-4-9 18140 Contra Costa Shell Ridge Open Space on west base of Mount Diablo, Indian Creek below Fossil Hill Trail crossing. 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
  UC582525  Carduus pycnocephalus subsp. pycnocephalus Joseph P. Tracy 1934-4-30 13188 Contra Costa roadside between Moraga and Lafayette Moraga 152 Comment
  UC691372  Carduus pycnocephalus subsp. pycnocephalus Mary L. Bowerman 1935-6-28 3179 Contra Costa about the corral of the Old Sloan place (Inner Black Hills); Mount Diablo, Inner Black Hills Comment
  CDA15244  Carduus tenuiflorus G. F. Hrusa, D. Crowe 1998-5-8 14375 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  CAS-BOT-BC281803  Carduus tenuiflorus David Keck 1941-6-5 5312 Contra Costa Berkeley Hills, Fish Creek Rd, 0.25 mile W of E portal of Broadway Tunnel 335 Comment
  UC2028189  Carduus tenuiflorus Barbara Ertter 1998-5-3 16054 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. Comment
  UC2028309  Carduus tenuiflorus Barbara Ertter, Susan D'Alcamo 1998-6-12 16193 Contra Costa North Peak Trail south of Prospectors Gap on east side of Mount Diablo summit. Comment
  UC1607683  Carex barbarae Barbara Ertter, Brad Olson 1991-9-28 10846 Contra Costa between Orinda and El Sobrante (s end of San Pablo Reservoir); San Pablo Reservoir 94 Comment
  CAS-BOT-BC19210  Carex barbarae Mary L. Bowerman 1935-9-13 3344 Contra Costa Mount Diablo. Frog Pond. At head of Forg Pond spring. Comment
  POM300641  Carex barbarae Mary L. Bowerman 1935-9-13 3344 Contra Costa Mount Diablo: Frog Pond, at head of Frog Pond Spring. Comment
  UC2029200  Carex densa Barbara Ertter 2003-2-8 18091 a Contra Costa Richmond Field Station (UC-Berkeley) Comment
  SEINET11263180  Carex globosa Barbara Ertter, A. T. Whittemore; Joanne Kerbavaz 2001-5-22 17650 Contra Costa South side of Mount Diablo, headwaters of West Branch Alamo Creek ESE of Knobcone Point, below powerline at end of Knobcone Point road.; 0 457 Comment
  UC2028269  Carex globosa Barbara Ertter 1999-6-12 16708 Contra Costa Black Hawk Ridge Road between Knobcone Point Road and NE fork of Sycamore Creek, South side of Mount Diablo. Comment
  UC2028415  Carex globosa Barbara Ertter with Alan Whittemore, Joanne Kerbavaz, et al. 2001-5-22 17650 Contra Costa South side Mount Diablo, headwaters of West Branch Alamo Creek ESE of Knobcone Point, below powerline at end of Knobcone Point Road Comment
  JEPS111897  Carex obnupta D. G. Kelch 2004-7-9 04 .305 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  CAS-BOT-BC119017  Carex pellita Walter Knight; B. Mortensen; J. Dean; R. Bensler; B. Atwater 1979-6-13 3364 Contra Costa Damp area in center of Browns Island. Comment
  JEPS25158  Carex praegracilis G. Thomas Robbins with John Weiler 1959-5-23 4029 Contra Costa at the nw edge of Brooks Island San Francisco Bay, Richmond, Brooks Island Comment
  UC2028444  Carex serratodens Barbara Ertter with Chris Thayer 1996-10-25 15374 Contra Costa West side of Mount Diablo, North Gate Road 1 road mile NW of Burma Road Comment
  CAS-BOT-BC117550  Carex serratodens Miss Mary Leolin Bowerman 1930-6-28 400 Contra Costa Lower Silver Spring. 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
  JEPS25119  Carex subbracteata G. Thomas Robbins 1959-4-18 3985 Contra Costa 1/2 mi e Pt. San Pablo (overlooking San Pablo Bay); San Pablo Bay, Richmond 7 Comment
  UC590537  Carex subbracteata W. H. Brewer 1012 Contra Costa Walnut Creek Comment
Read comments
Oct 23 2009
  CDA34479  Carex subbracteata D. G. Kelch 2006-3-18 6 .106 Contra Costa 2 km N-NW of Orinda Village. NW of corner of San Pablo Dam Rd & Bear Valley Rd. 0 Comment
  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
  CAS-BOT-BC116916  Carex subbracteata var. subbracteata G. Thomas Robbins 1959-4-18 3984 Contra Costa Overlooking San Pablo Bay, ca 1/2 mi E of Pt. San Pablo, Richmond. 7 Comment
  JEPS74803  Castilleja L. R. Heckard, T. I. Chuang and R. C. Bacigalupi 1975-5-7 4011 Contra Costa ca 0.5 mi e Pinole (just e of Interstate 80, along main route of Santa Fe RR) Comment
  UC1050823  Castilleja affinis N. Floy Bracelin 1941-6-1 1349 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  RSA639387  Castilleja affinis H. P. Bracelin 1933-6-10 768 Contra Costa Near crest of hills north of Berkeley above Kensington. Comment
  UC2070591  Castilleja affinis Barbara Ertter with Steve Matson 2003-3-15 18100 Contra Costa Black Diamond Mines Regional Preserve, north slope of Rose Hill. 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
  UC64217  Castilleja affinis subsp. affinis H. M. Hall 1900-3-23 Contra Costa San Pablo Creek; San Francisco Bay Region Comment
  UC691558  Castilleja affinis subsp. affinis Mary L. Bowerman 1931-3-28 559 Contra Costa above Mitchell Rock (Mount Diablo); Mount Diablo Comment
  UC691576  Castilleja attenuata Mary L. Bowerman 1933-5-11 2084 Contra Costa w end Inner Black Hills; Mount Diablo Comment
  JEPS19440  Castilleja densiflora subsp. densiflora Rimo Bacigalupi with G. T. Robbins 1956-5-11 5640 Contra Costa .33 mi e Pinole (between State Highway 4 (Franklin Canyon Rd) and Santa Fe Ry. right-of-way, 0.25 mi e of junction of this rd with U.S. Hwy 40) 22 Comment
  UC1481545  Castilleja densiflora subsp. densiflora Neil Havlik 1980-5-14 917 Contra Costa e side Pt. Pinole Regional Shoreline Comment
  UC2070586  Castilleja exserta Barbara Ertter 2003-3-28 18131 Contra Costa Round Valley Regional Preserve, upper Hardy Canyon. Comment
  CHSC116613  Castilleja exserta subsp. exserta Lowell Ahart; Josephine Guardino 2016-4-19 20779 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  JEPS100149  Castilleja exserta subsp. exserta G. Smick 2003-3-25 GAS 78 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS74806  Castilleja exserta subsp. exserta L. R. Heckard, T. I. Chuang and R. Bacigalupi 1975-5-7 4014 Contra Costa ca 0.5 mi e Pinole (just of of Interstate Hwy 80, along main route of Santa Fe Railroad) Comment
  UC1301202  Castilleja exserta subsp. exserta Helen K. Sharsmith 1963-4-7 5289 Contra Costa w of Antioch (e side of Kirker Pass road); San Francisco Bay Region 152 Comment
  UC673456  Castilleja exserta subsp. exserta H. L. Mason 1928-3-4 4168 Contra Costa Shell Ridge Comment
  JEPS17083  Castilleja exserta subsp. latifolia Rimo Bacigalupi with Keith Harrison and G. T. Robbins 1955-5-13 5064 Contra Costa opposite El Cerrito (just to the w of Arlington Avenue and opposite Mira Vista Country Club); Berkeley Hills 198 Comment
  JEPS99573  Castilleja rubicundula subsp. lithospermoides Mary L. Bowerman 1978-5-24 Contra Costa Mount Diablo. Donner Canyon, west side trail of Hetherington Loop 2 Comment
  JEPS121057  Castilleja wightii D. G. Kelch 1999-6-23 99001 B Contra Costa Vaca Canyon along Alhambra Valley Road about 1.5 mile East of Pig Sale Comment
  CDA29227  Castilleja wightii D. G. Kelch 2002-6-17 2 .013 Contra Costa Carquinez Strait; Vaca Canyon. 1.5 kilometers east of Pig Sale on Alhambra Valley Road. 0 Comment
  CAS-BOT-BC40516  Caulanthus lasiophyllus Ira L. Wiggins 1930-4-17 4564 Contra Costa 1 mile east of Mountain House on road to Byron. Comment
  POM300662  Ceanothus cuneatus Mary L. Bowerman 1932-5-1 1406 Contra Costa Oyster Ridge, outer steep face E of Alamo Creek Comment
  UCD111741  Ceanothus cuneatus W. Ebeling 1929-3-19 s.n. Contra Costa Mount Diablo. Comment
  UC18269  Ceanothus cuneatus var. cuneatus State Survey 1862-5-7 1062 Contra Costa summit of Mt. Diablo Comment
  UC480608  Ceanothus cuneatus var. cuneatus Carl Meyer 1928-2-22 Contra Costa Mt. Diablo Comment
  UCD124005  Ceanothus cuneatus var. cuneatus D. O. Burge 2007-5-9 916 e Contra Costa Mount Diablo State Park, roadside on South Gate Road, 1.5 road miles (2.4 km) north of entrance gate, 6.38 km 67 deg. (True) ENE of Danville. 380 Comment
  JEPS42198  Ceanothus oliganthus var. sorediatus W. L. Jepson 1916-7-16 6814 Contra Costa Oakland hills Comment
  JEPS42309  Ceanothus oliganthus var. sorediatus H. H. Haworth 1917-5-3 Contra Costa Redwood Peak Oakland Hills Comment
  JEPS111720  Centaurea calcitrapa D. G. Kelch 2004-6-19 04 .281 Contra Costa Selby Along railroad tracks west of Carquinez Bridge Crockett (Valona) 20 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
  RSA351522  Centaurea solstitialis B. C. Templeton 1962-6-20 s.n. Contra Costa Mount Diablo Comment
  CAS-BOT-BC284463  Centaurea solstitialis Chester Dudley 1931-7-1 s.n. Contra Costa Walnut Creek Comment
  UC1555364  Centaurium davyi Jerry Powell 1988-6-28 1541 Contra Costa Point Molate, in w Richmond Richmond, Point Molate Comment
  JEPS78619  Centaurium muehlenbergii Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3288 Contra Costa Browns Island Comment
  JEPS88689  Centromadia fitchii John Thomas Howell 30904 Contra Costa near Turtle Rock; Mt. Diablo 259 Comment
  CAS-BOT-BC288536  Centromadia fitchii David D. Keck 1933-11-2 2609 Contra Costa San Ramon, Crow Creek Canyon Rd, 0.5 mile from turnoff Comment
  CAS-BOT-BC288542  Centromadia fitchii L. S. Rose 1941-10-13 41464 Contra Costa 1 mile E of Walnut Creek 50 Comment
  CAS-BOT-BC288874  Centromadia parryi subsp. congdonii R. E. Preston 1998-10-6 1178 Contra Costa Along flood plain of Alamo Creek, along Dougherty Rd, N of the Alameda/Contra Costa County line 143 Comment
  JEPS95217  Centromadia parryi subsp. congdonii R. E. Preston 1998-10-9 1180 Contra Costa Collier Canyon and adjacent valleys, in valley bottom, lower slopes, and saddles. 228 Comment
  CAS-BOT-BC288879  Centromadia parryi subsp. congdonii David D. Keck 1933-11-2 2610 Contra Costa San Ramon, Cow Creek Canyon Rd, 0.5 mile from turnoff Comment
  CAS-BOT-BC288880  Centromadia parryi subsp. congdonii David D. Keck 1933-11-2 2611 Contra Costa 2.7 miles N of Walnut Creek Comment
  OBI16179  Centromadia parryi subsp. congdonii Robert F. Hoover 1966-8-31 9943 Contra Costa Jctn of Tassajara and Freitas Rds E of Danville Comment
  UCD148253  Centromadia pungens Robert E. Preston 2013-6-21 2915 Contra Costa 3.5 mi SW of Byron. 72 Comment
  UCD14671  Centromadia pungens Mick Canaveri 1997-4-1 s.n. Contra Costa near Brentwood. 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
  JEPS35033  Centromadia pungens subsp. pungens W. L. Jepson 1896-5-31 Contra Costa Wild Cat Creek Comment
  UC1819017  Centromadia pungens subsp. pungens Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14679 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay; packed ground around Tank 14 in center of hillside. Comment
  UC1039525  Cephalanthus occidentalis var. californicus H. L. Mason 1929-9-21 5447 Contra Costa 1 mi from Borden Highway junction with road to Antioch Comment
  UC1606353  Cephalanthus occidentalis var. californicus Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10692 Contra Costa n of Pittsburg (Browns Island, near confluence of Sacramento River and San Joaquin River, opposite Pittsburg Marina); Browns Island Comment
  RSA0027414  Cerastium fontanum subsp. vulgare Barbara Ertter, Rich Rabeler, Tony Morosco 1997-6-10 15672 Contra Costa Martinez Regional Shoreline, south edge of Carquinez Strait. Comment
  UC692408  Cerastium glomeratum Mary L. Bowerman 1931-3-7 545 Contra Costa Mt. Diablo, Sheep Camp Spring 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
  RSA666357  Ceratophyllum demersum Barbara Ertter, Lynne Hosley 1991-9-22 10823 Contra Costa Lafayette Reservoir in hills SW of Lafayette 137 Comment
  UC691101  Cercocarpus betuloides var. betuloides Mary L. Bowerman 1931-4-25 Contra Costa summit of Meridian Peak (Mount Diablo); , Meridian Peak Comment
  JEPS103081  Cestrum parqui Marck Menke 1998-12-25 30 Contra Costa S of Martinez (along upper Alhambra Creek beside Alhambra Creek Trail); Briones Regional Park Comment
  CDA4796  Chamaesyce maculata D. G. Kelch, A. G. Murdock 2005-6-27 5 .391 Contra Costa Carquinez Strait; 6th Street at Lillian Street, Crockett. Comment
  JEPS111947  Chamaesyce serpens A. G. Murdock 2004-5-28 306 -B Contra Costa Luzon 60 Comment
  JEPS111952  Chamaesyce serpens D. G. Kelch 2004-7-9 04 .301 Contra Costa McEwen Road McEwen marsh. McEwen Road North of Cummings Skyway 130 Comment
  CAS-BOT-BC70279  Cheilanthes intertexta Alice Eastwood 1915-5-30 4528 Contra Costa Mt. Diablo Comment
  JEPS79597  Cheilanthes intertexta Edward Lee 1978-12-20 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC70278  Cheilanthes intertexta John Thomas Howell 1955-3-6 30145 Contra Costa between South & North peaks of Mt. Diablo Comment
  UC1328154  Chenopodium album Olive Dyer 1936-9-5 28 w Contra Costa 1/2 mi above San Pablo Ave.; Wildcat Creek Comment
  UC691914  Chenopodium berlandieri Mary L. Bowerman 1933-8-26 2417 Contra Costa roadside about 2 mi below Rock City; Mount Diablo, Black Hills Comment
  UC2012996  Chenopodium berlandieri Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14926 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  PASA2694  Chenopodium californicum Annetta Carter 1929-3-31 137 Contra Costa Near Clayton; hills north of Mt. Diablo Comment
  JEPS68928  Chenopodium multifidum Edward Lee 1934-9-30 1222 Contra Costa Moraga; just se of station Comment
  JEPS111800  Chenopodium murale D. G. Kelch 2004-7-9 04 .308 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  UC1004357  Chlorogalum pomeridianum var. pomeridianum M. S. Cave 1949-6-26 4901 Contra Costa Arlington Avenue n Mira Vista entrance (hillside); Kensington Comment
  SBBG54463  Chorizanthe membranacea L. R. Abrams 1921-5-25 Contra Costa Mt Diablo Comment
  UC692148  Chorizanthe membranacea Mary L. Bowerman 1930-6-28 403 Contra Costa lower Silver Spring , lower Silver Spring (Mount Diablo) Comment
  UC692213  Chorizanthe membranacea Mary L. Bowerman 1938-5-28 3636 Contra Costa North Road 4.7 mi from North Gate (Mount Diablo); Mount Diablo 411 Comment
  RSA392753  Chorizanthe membranacea L. S. Rose 1941-5-15 41230 Contra Costa Mt. Diablo, w. slope 396 Comment
  UC2028983  Chorizanthe membranacea Barbara Ertter 2000-5-14 17015 Contra Costa Donner Basin on north side of Mount Diablo, Falls Trail north of Wild Oat Canyon. Comment
  CAS-BOT-BC264081  Chorizanthe uniaristata M. K. Curran 1884-1-1 s.n. Contra Costa Near Mt. Diablo Comment
  CAS-BOT-BC30112  Chrysolepis chrysophylla var. minor C. Keeper 1924-9-25 s.n. Contra Costa Moraga ridge Comment
  JEPS97617  Chrysolepis chrysophylla var. minor R. D. Stone 1980-7-13 265 Contra Costa NE of intersection of Skyline Blvd. and Snake Rd. Huckleberry Trail; Oakland Hills, near Alameda-Contra Costa county line Comment
  UC1789151  Cinnamomum camphora Barbara Ertter 2001-5-26 17653 Contra Costa Stamm Unit of Antioch Dunes National Wildlife Refuge east of Antioch, two young individuals at base of river bank. Comment
  CAS-BOT-BC277978  Cirsium cymosum Mary L. Bowerman 1935-5-22 3041 a Contra Costa Mount Diablo. Eagle Point ridge, canyon at north end which heads into saddle west of Twin Peaks 304 Comment
  UC691380  Cirsium cymosum var. cymosum Mary L. Bowerman June 1942 3848 Contra Costa South Road se of Rock City 502 Comment
  JEPS59324  Cirsium occidentale var. californicum W. L. Jepson 20843 Contra Costa Mt. Diablo Contra Costa Comment
  CAS-BOT-BC288043  Cirsium occidentale var. venustum Mrs. E. C. Wright 1917-6-1 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC285727  Cirsium vulgare Walter Knight; Frank Almeda; Bob Doyle; Joanne Dean 1978-10-11 3328 Contra Costa Browns Island. South Landing Comment
  UC1795899  Clarkia Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14638 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
  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
  CAS-BOT-BC162562  Clarkia affinis Mary L. Bowerman 1931-5-13 843 Contra Costa Pine Canyon floor one mile above the Sulphur Spring - Mount Diablo Comment
  CAS-BOT-BC162563  Clarkia affinis Mary L. Bowerman 1933-5-17 2095 Contra Costa Branch of Curry Canyon due south of Olafsons' barn - Mount Diablo Comment
  UC2028174  Clarkia affinis Barbara Ertter 1998-5-3 16048 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. Comment
  UC2070449  Clarkia affinis Barbara Ertter with Steve Matson 2003-5-31 18179 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, Coal Canyon. Comment
  SBBG40396  Clarkia amoena W. J. Dress 1951-7-3 3466 Contra Costa near rd a few mi S of Moraga 152 Comment
  UC107833  Clarkia biloba Katharine Brandegee June 1905 Contra Costa Port Costa Comment
  UC1197000  Clarkia biloba Joseph P. Tracy 1935-7-6 14038 Contra Costa 4 mi sw Martinez; Vaca Canyon 152 Comment
  UCD21831  Clarkia biloba C. Thayer 1994-8-1 s.n. Contra Costa West side of Lafayette Ridge, Lafayette. Comment
  CAS-BOT-BC163608  Clarkia biloba subsp. biloba A. D. E. Elmer 1903-5-1 4319 Contra Costa Mount Diablo Comment
  UC692490  Clarkia gracilis subsp. gracilis Mary L. Bowerman 1942-5-24 3840 Contra Costa w slope Deer Ridge (Jim White Trail to Deer Flat); Mount Diablo 853 Comment
  RSA60760  Clarkia purpurea subsp. purpurea Edward L. Greene 1889-05 s.n. Contra Costa Martinez Comment
  CAS-BOT-BC163667  Clarkia purpurea subsp. quadrivulnera L. R. Abrams 1916-6-30 5712 Contra Costa Mt. Diablo near lake Comment
  CDA9187  Clarkia purpurea subsp. quadrivulnera Christopher Thayer 1995-6-5 s.n. Contra Costa Carquinez Strait; W of Pinole Peak. Comment
  JEPS23503  Clarkia purpurea subsp. quadrivulnera Edward Lee Greene 1886-5-25 Contra Costa Mt. Diablo Comment
  UC692441  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1931-5-19 875 Contra Costa Donner Canyon trail Mount Diablo Comment
  CAS-BOT-BC163674  Clarkia purpurea subsp. quadrivulnera H. L. Mason 1928-4-26 4379 Contra Costa Around Berkeley and Oakland Comment
  CDA31846  Clarkia rubicunda D. G. Kelch, Dick Moe, Doug Stone 2001-6-3 1 .024 Contra Costa East Bay.; Brooks Island. Comment
  UC1279898  Clarkia rubicunda Peter H. Raven 1957-6-20 10950 Contra Costa e end Tilden Regional Park (hillside at Inspiration Point) Comment
  UC1279947  Clarkia rubicunda Peter H. Raven 1957-7-5 11049 Contra Costa 0.2 mi from tip Point Richmond 106 Comment
  RSA113595  Clarkia rubicunda Peter H. Raven 1957-7-5 11049 Contra Costa 0.2 mile from tip of Point Richmond Comment
  CAS-BOT-BC165449  Clarkia unguiculata L. R. Abrams 1916-6-30 5702 Contra Costa Mt. Diablo near lake Comment
  POM181154  Clarkia unguiculata J. T. Howell 1931-5-12 6481 Contra Costa Mt. Diablo. Comment
  UC1586096  Clarkia unguiculata Barbara Ertter with Travis Columbus 1990-6-10 9105 Contra Costa w Pleasant Hill (hillside above junction of Spengler and Blue Oak trail, ne corner of park); Briones Regional Park, Briones Hills 274 Comment
  UC692494  Clarkia unguiculata Mary L. Bowerman 1930-6-3 235 Contra Costa 1.9 mi from North Gate (North Road); Mount Diablo 167 Comment
  CAS-BOT-BC439167  Claytonia exigua subsp. exigua John Thomas Howell 1926-3-7 1676 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC439174  Claytonia exigua subsp. exigua C. F. Baker 1903-4-28 2816 Contra Costa Mitchell's canon [Mitchell Canyon], Mt. Diablo Comment
  JEPS78750  Claytonia parviflora subsp. parviflora Edward Lee 1936-5-24 2157 Contra Costa about 2 mi se Curry Canyon (Marsh Creek); Morgan Territory, Marsh Creek Comment
  UC2028060  Claytonia parviflora var. parviflora Barbara Ertter, Tony Morosco 1998-4-12 16014 Contra Costa Mount Olympia on north side of Mount Diablo. Comment
  JEPS68970  Claytonia perfoliata subsp. perfoliata Edward Lee 1935-3-10 1304 Contra Costa Nortonville; s watershed of Kirker Creek Comment
  UC1057451  Claytonia perfoliata subsp. perfoliata G. Thomas Robbins 1937-4-25 148 Contra Costa 2 mi e Alamo Comment
  CAS-BOT-BC440072  Claytonia perfoliata subsp. perfoliata Willis Ball 1975-2-23 444 Contra Costa Contra Loma Regional Park. In area #1. In flat area ca. 150 yds w of main parking lot. 30 Comment
  CAS-BOT-BC440073  Claytonia perfoliata subsp. perfoliata Mary L. Bowerman 1932-3-6 1099 Contra Costa Mount Diablo. Sycamore Ridge Comment
  UC1050592  Clematis cirrhosa N. Floy Bracelin 1942-2-22 1942 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC91355  Clematis lasiantha V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley. Comment
  UC136298  Clematis lasiantha C. F. Baker 1903-4-28 2946 Contra Costa Mt. Diablo, Mitchells Canyon Comment
  UC635101  Clematis lasiantha A. E. Borell 1928-4-8 90 Contra Costa Mt. Diablo Comment
  SEINET5547635  Clematis ligusticifolia H. S. Gentry 1931-1 57 Contra Costa Collected near Buckle Point, Mount Diablo. 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
  UC103400  Collinsia heterophylla K. Brandegee May 1889 Contra Costa Antioch Comment
  UC26674  Collinsia heterophylla J. Burtt Davy 1895-4-8 970 Contra Costa Antioch Comment
  SEINET10964450  Collinsia heterophylla John G. Lemmon 1872-1 Lemmon s.n. Contra Costa Mt. Diablo. Comment
  UCD102371  Collinsia sparsiflora Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Burma Road at Mount Diablo. 470 Comment
  RSA412224  Collinsia sparsiflora H. de Forest 1930-4-6 s.n. Contra Costa [No location information provided.] Comment
  UC691585  Collinsia sparsiflora var. collina Mary L. Bowerman 1933-4-9 1836 Contra Costa w fork Donner Canyon Mount Diablo (Mount Diablo) 243 Comment
  JEPS6266  Collinsia sparsiflora var. collina E. W. Hicks 1917-3-24 108 Contra Costa foot of W slope of Mount Diablo 304 Comment
  JEPS6312  Collinsia sparsiflora var. sparsiflora W. L. Jepson 1922-4-16 9599 Contra Costa San Pablo Valley Comment
  JEPS7290  Collinsia tinctoria Mary L. Bowerman 1935-5-30 3090 Contra Costa Mount Diablo, Eagle Point Ridge, Rock slide Eagle Point Ridge; Mount Diablo, Eagle Point Ridge 350 Comment
  UC1612419  Collinsia tinctoria R. Raiche 1982-6-19 20460 Contra Costa Mt. Diablo Comment
  SEINET3860930  Collomia diversifolia David Gowen 2005-5-28 395 Contra Costa Mt. Diablo State Park, on Meridian Ridge Rd. (dirt fire road), east of Murchio Gap.; 0 Comment
  UC691883  Conium maculatum Mary L. Bowerman 1935-6-8 3121 Contra Costa Mt. Diablo, Muir Area Comment
  CHSC23350  Convolvulus arvensis Willis Ball 1975-5-20 529 Contra Costa Contra Loma Regional Park. In area #1. At e end of island in center of main parking lot at s end of reservoir. 36 Comment
  UC141630  Convolvulus simulans Katharine Brandegee 1907-6-16 Contra Costa fields bet. Antioch and Marsh Creek Comment
  UC1584663  Conyza canadensis Jerry Powell 1990-8-29 1586 Contra Costa Antioch National Wildlife Refuge Comment
  JEPS77538  Cordylanthus mollis subsp. mollis Charles Patterson June, 1978 Contra Costa tidal marsh near Shore Acres; West Pittsburg Comment
  JEPS87949  Cordylanthus pilosus subsp. pilosus Barbara Ertter, CNPS 1990-8-19 9623 Contra Costa above Cutter Cove (e side of s end of Briones Reservoir, n of Orinda, along Bear Creek Trail on EBMUD land); Briones Reservoir, Bear Creek Trail 213 Comment
  RSA412332  Cordylanthus pilosus subsp. pilosus L. S. Rose 1941-8-31 41431 Contra Costa Mt. Diablo, Rocky City. Comment
  UC2028021  Cordylanthus pilosus subsp. pilosus Barbara Ertter 1997-9-14 15815 Contra Costa southwest side of Mount Diablo, Wall Point Road east of crest of ridge. Comment
  UC692511  Cornus glabrata Mary L. Bowerman 1931-5-28 904 Contra Costa Pine Canyon Mt. Diablo (gully at e. end of Castle Rock Farm); , Pine Canyon Comment
  UCR263555  Coronopus didymus Barbara Ertter 1990-5-15 8991 Contra Costa San Francisco Bay Region, South El Cerrito, north foot of Albany Hill at end of Yosemite Avenue cul-de-sac 4 Comment
  CAS-BOT-BC190026  Cortaderia selloana Walter Knight 1978-9-19 3247 Contra Costa Browns Island. South Landing. Comment
  UC692035  Corylus californica Mary L. Bowerman 1931-5-23 894 Contra Costa Alamo Canyon Mount Diablo 487 Comment
  JEPS111824  Corylus cornuta var. californica A. G. Murdock 2004-4-30 261 Contra Costa Vaca Canyon 165 Comment
  UC1620000  Cotoneaster lacteus Barbara Ertter 1997-1-5 15432 Contra Costa Ygnacio Valley Road at Lime Ridge between Walnut Creek and Clayton, south facing roadcut. 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
  JEPS111528  Cotula coronopifolia D. G. Kelch 2005-5-5 05 .212b Contra Costa Point Pinole - Giant Marsh Giant Salt Marsh 3 Comment
  UC1949082  Crassula aquatica Barbara Ertter with Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 19792 Contra Costa at upper (south) end of San Pablo Dam Reservoir northwest of Orinda Comment
  UC692558  Crassula connata var. subsimplex Mary L. Bowerman 1932-2-28 1093 Contra Costa ridge e. of Rhine Canyon (grassy flat near saddle, Mt. Diablo); Mt. Diablo 579 Comment
  CAS-BOT-BC427924  Crassula solieri Brandegee No date on label s.n. Contra Costa Antioch Comment
  UCR115055  Cressa truxillensis G. Fred Hrusa, R. York 1998-7-17 14720 Contra Costa Sacramento-San Joaquin River Delta, E end of Dow Chemical property. 12 Comment
  UC1198987  Croton californicus Joseph P. Tracy 1921-5-17 5567 Contra Costa Antioch 30 Comment
  UC765094  Croton californicus R. F. Hoover 1937-5-14 2113 Contra Costa Antioch sand-dunes Comment
  CDA15277  Croton setiger G. F. Hrusa, D. Crowe, R. York 1998-7-17 14714 Contra Costa Sacramento Delta; E end of Dow Chemical property. Comment
  OBI22928  Croton setiger Janet Harford 1971-11-6 2 Contra Costa Mount Diablo, S side 610 Comment
  UCD59835  Crypsis schoenoides G. F. Hrusa; D. Crowe, R. York 1998-7-17 14726 Contra Costa Sacramento-San Joaquin River Delta. East side of Antioch-Pittsburg Hwy at east end of Dow Chemical property. 12 Comment
  CAS-BOT-BC190081  Crypsis schoenoides R. E. Frenkel 1964-9-17 864 Contra Costa On Marsh Creek Road at shore of Marsh-Kellogg Creek Reservoir. 45 Comment
  JEPS108226  Cryptantha decipiens David Gowen 2005-5-6 282 Contra Costa Mt. Diablo State Park. Rocky outcrops on the south side of North Peak. Comment
  UC691337  Cryptantha decipiens Mary L. Bowerman 1932-4-16 1345 Contra Costa Eagle Point Comment
  UC762391  Cryptantha decipiens R. F. Hoover 1938-5-4 3347 Contra Costa Peak E of Tassajero Creek 762 Comment
  UC659427  Cryptantha flaccida Lincoln Constance, Carl W. Sharsmith with Howard S. Reed 1940-4-27 2573 Contra Costa Pine Canyon, base of Mount Diablo Mount Diablo 304 Comment
  UC79420  Cryptantha micromeres Katharine Brandegee May 1889 Contra Costa Antioch Comment
  UC691348  Cryptantha muricata Mary L. Bowerman 1933-5-18 2129 a Contra Costa Mount Diablo Comment
  UC691393  Cryptantha nevadensis var. rigida Mary L. Bowerman 1932-4-9 1331 Contra Costa Mount Diablo; Inner Black Hills, small ridge E of S spur on meridian Comment
  UC1795800  Cryptantha torreyana Barbara Ertter, Mary L. Bowerman 1994-6-19 12846 a Contra Costa Mt. Diablo State Park east of Walnut Creek; lower Summit Parking Lot, opening on North side, 1127 Comment
  CDA22912  Cucurbita foetidissima D. G. Kelch 2008-9-1 8 .297 Contra Costa Carquinez Strait; North of Waterbird Park along RR tracks. E of Martinez. Comment
  CDA33483  Cuscuta japonica Fonseca/Yost 2008-11-2 PDR# 1503841 Contra Costa San Pablo; 2336 Shawn Dr. 0 Comment
  UC1818905  Cuscuta occidentalis Barbara Ertter, Mary Bowerman 1994-6-19 12850 a Contra Costa Mt. Diablo State Park east of Walnut Creek; lower Summit Parking Lot, opening in chaparral near radio tower, ca 3600'. Comment
  JEPS25274  Cuscuta salina var. major G. Thomas Robbins 1959-9-13 4161 Contra Costa n edge Pinole; San Pablo Bay Comment
  UC613060  Cuscuta salina var. major C. W. Sharsmith 1933-9-15 477 Contra Costa near Carquinez Straits (adjacent to San Pablo Bay); San Pablo Bay Comment
  CAS-BOT-BC299742  Cynara cardunculus John Thomas Howell 1953-3-15 28922 Contra Costa Danville Comment
  CAS-BOT-BC299743  Cynara cardunculus John Thomas Howell 1953-3-15 28922 Contra Costa Danville Comment
  UC2013065  Cynara cardunculus Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14927 Contra Costa Northwest base of Mount Diablo access to Foothills Regional Park from North Gate road along Little Pine Creek. Comment
  UCD60088  Cynodon dactylon Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  UC691770  Cynoglossum grande Mary L. Bowerman 1935-3-15 2733 Contra Costa e. fork Arroyo del Cerro (Mt. Diablo, Peach Tree Springs rd.); Mt. Diablo, e. fork Arroyo del Cerro 228 Comment
  JEPS100020  Cynosurus echinatus S. O'Neil 2003-5-30 SEO 36 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS99547  Cynosurus echinatus Mary Bowerman 1975-6-7 Contra Costa Mount Diablo, Big Spring. Comment
  RSA721595  Cynosurus echinatus Mary L. Bowerman 1975-6-7 s.n. Contra Costa Mount Diablo. Big Spring. Comment
  SEINET7581662 Image available Cyperus eragrostis Thomas Morley 1940-12-3 90 Contra Costa Bans at upper end of San Leandro Lake near mouth of Redwood Creek. 130 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
  UC691968  Cyperus niger Mary L. Bowerman 1930-10-4 480 Contra Costa Mt. Diablo, Maple Spring Comment
  UC2028349  Cypselea humifusa Barbara Ertter 2005-8-18 18635 a Contra Costa Mudflats on SE side of San Pablo Reservoir in East BAy Hills, east of San Pablo Dam Road between San Pablo and Orinda, access between HQ and boat launching area [reservoir way down this year while being drained for seismic work on dam] Comment
  CDA42439  Cystopteris fragilis D. G. Kelch, Daniel Weinstein 2013-2-23 13 .013 Contra Costa Carquinez Strait; Muir Land Trust Property at Fernandez Ranch; SW Christie Rd. Comment
  UC62648  Cystopteris fragilis Marshall A. Howe 1896-2-29 Contra Costa Mitchell Canyon; Mt. Diablo Comment
  UC692112  Cystopteris fragilis Mary L. Bowerman 1933-5-21 2156 Contra Costa above Grape Spring gully Sulphur Spring Canyon; Mt. Diablo Comment
  CHSC114319  Cytisus spachianus T. C. Fuller 1964-3-10 11707 Contra Costa Solano Ave. turn-off from freeway (IS 80), Richmond, Contra Costa County. Comment
  RSA0027405  Datura stramonium Barbara Ertter 1999-8-21 16790 Contra Costa Former reservoir upstream from mouth of Mitchell Canyon. Comment
  UC691894  Daucus pusillus Mary L. Bowerman 1931-5-21 878 Contra Costa Curry-Cave Point trail Mt. Diablo; , Curry-Cave Point trail 304 Comment
  CAS-BOT-BC287365  Deinandra Walter Knight 1977-7-24 s.n. Contra Costa Black Diamond Mines Regional Preserve. Nortonville Ridge 304 Comment
  CAS-BOT-BC287385  Deinandra corymbosa Peter H. Raven 1957-7-5 11052 Contra Costa At tip of Point Isabel Comment
  UCD130661  Deinandra corymbosa Beecher Crampton 1950-6-20 596 Contra Costa Richmond Comment
  JEPS12619  Deinandra kelloggii Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  UC365836  Deinandra kelloggii Mrs. K. Curran Contra Costa near Antioch Comment
  JEPS62625  Deinandra lobbii Elsie M. Zeile 1921-9-17 Contra Costa Rodeo Comment
  RSA400096  Delphinium californicum Thekla Mohr 1917-07 3245 Contra Costa Mount Diablo Comment
  UC691947  Delphinium californicum Mary L. Bowerman 1935-5-30 3091 Contra Costa rock slide Mount Diablo, Eagle Point Ridge 350 Comment
  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
  JEPS6231  Delphinium hesperium subsp. hesperium Willis L. Jepson May 23-24 1891 21394 Contra Costa Mt. Diablo Comment
  UC2027807  Delphinium hesperium subsp. hesperium Barbara Ertter with Holly Forbes 1997-4-20 15545 Contra Costa North base of Mount Diablo, trail to Back Creek from Mitchell Canyon trailhead. Comment
  JEPS6250  Delphinium hesperium subsp. pallescens W. L. Jepson 1923-6-10 9998 Contra Costa Upper Marsh Creek Mount Diablo Comment
  UC13984  Delphinium hesperium subsp. pallescens Chesnut and Drew 1889-4-17 Contra Costa Antioch Comment
  UC101573  Delphinium hesperium subsp. pallescens Katharine Brandegee 1907-5-3 Contra Costa bet. Antioch and Marsh Creek Comment
  UCD102391  Delphinium nudicaule Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Bald Ridge Trail. Bald Ridge. 890 Comment
  RSA148120  Delphinium patens Harlan Lewis, C. Epling 1944-5-6 s.n. Contra Costa 5.7 miles S of Marsh Creek Road on the Beck road to Luieruiore. Comment
  RSA59848  Delphinium patens Joseph A. Ewan 1934-4-8 8754 Contra Costa S Fork Marsh Creek, Morgan Territory. 244 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
  JEPS65196  Delphinium patens subsp. patens L. R. Heckard 1971-4-15 2471 Contra Costa along Morgan Territory road 7 mi n intersection with Manning road (e of Mt. Diablo) 487 Comment
  UC692090  Delphinium patens subsp. patens Mary L. Bowerman 1933-5-17 2110 Contra Costa branch of Curry due s Olafsen's barn (w-facing bank 20 ft above stream); Mount Diablo Comment
  CAS-BOT-BC116462  Delphinium patens subsp. patens E. M. Zeile 1910-4-2 s.n. Contra Costa Fish Ranch Comment
  UC199142  Delphinium variegatum Chesnut and Drew 1887-4-16 Contra Costa Clayton Comment
  UC1050504  Dendromecon rigida N. Floy Bracelin 1941-4-27 1222 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC192675  Deschampsia danthonioides Walter Knight; Irja Knight; Mary L. Bowerman 1969-6-4 2621 Contra Costa 100 yds west of Chase Pond. Mt. Diablo 554 Comment
  CAS-BOT-BC192676  Deschampsia danthonioides Mary L. Bowerman 1935-6-28 3164 Contra Costa Chase Pond 548 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
  CHSC118029  Deschampsia elongata Barbara Ertter 1999-6-12 16710 Contra Costa Black Hawk Ridge road on south side of Mount Diablo, road crossing at confluence of NE and E forks of Sycamore Creek. 396 Comment
  SEINET3927628  Deschampsia elongata Glen Holstein 2000-7-27 s.n. Contra Costa SE El Sobrante, NE side of San Pablo Ridge.; 0 Comment
  UC199816  Dicentra chrysantha V. King Chesnut 1887-9-10 Contra Costa Mt. Diablo Comment
  UC521723  Dicentra chrysantha Joseph Andorfer Ewan 1933-10-15 8030 Contra Costa s slope Mt. Diablo 1066 Comment
  UC615579  Dicentra chrysantha Beryl O. Schreiber 1933-10-5 933 Contra Costa Mount Diablo road; Mount Diablo Comment
  UC692101  Dicentra chrysantha Mary L. Bowerman 1932-9-3 1529 Contra Costa Muir Area; Mount Diablo Comment
  POM212448  Dicentra chrysantha Joseph A. Ewan 1933-10-15 8030 Contra Costa South slope of Mt. Diablo 1067 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
  UC72521  Dichelostemma capitatum Harley P. Chandler 1901-3-22 880 Contra Costa Port Costa Comment
  RSA367471  Dichelostemma capitatum subsp. capitatum H. de Forest 1930-4-6 s.n. Contra Costa [No locality information provided] Comment
  JEPS100059  Dichelostemma congestum G. Smick 2003-5-8 GAS 69 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS112492  Dichelostemma congestum D. G. Kelch 2005-4-24 05 .171 Contra Costa Franklin Canyon Franklin Canyon. Collier Hill. West Carbon. On knoll between fenced hill and railroad cut. 60 Comment
  JEPS112511  Dichelostemma congestum D. G. Kelch 2004-5-7 04 .182 Contra Costa Ca ada del Cierbo 40 Comment
  UC1133994  Dichelostemma congestum C. M. Belshaw 1936-5-9 2074 Contra Costa 2.25 mi e Clayton; Mt. Diablo Quad. 381 Comment
  UC2029186  Dichelostemma congestum Barbara Ertter 2000-5-14 17006 Contra Costa Donner Canyon on north side of Mount Diablo, SW end of Falls Trail between Middle Trail and Donner Creek crossing Comment
  UC1795813  Dichondra donelliana Barbara Ertter, Brad Olson 1994-5-7 12745 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge. Comment
  CAS-BOT-BC150329  Diplacus aurantiacus Alice Eastwood 1915-5-30 4455 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC121839  Dirca occidentalis Walter Knight; Irja Knight 1967-1-24 2057 Contra Costa Tilden Regional Park, near little train Comment
  LA209792  Dirca occidentalis Joseph Andorfer Ewan; 1934-3-10 8643 Contra Costa Wildcat Canyon, 2 mi below Orinda Rd bridge, Comment
  CAS-BOT-BC208654  Distichlis spicata A. A. Beetle 1941-6-24 s.n. Contra Costa Point Richmond on San Francisco Bay Comment
  UCD64394  Distichlis spicata var. stolonifera M. Wiesendanger 1926-6-1 1534 Contra Costa Richmond. Comment
  SEINET10558207  Distichlis spicata var. stolonifera Alan A. Beetle 1941-6-24 Beetle 1752 Contra Costa Point Richmond on San Francisco Bay, common in wet sandy places. Comment
  CDA4505  Dittrichia graveolens D. G. Kelch 2006-9-25 6 .476 Contra Costa Carquinez Strait; Marsh 1km. W of Pacheco Slough. Comment
  JEPS21206  Dodecatheon clevelandii subsp. patulum Herbert L. Mason 1925-2-28 1260 Contra Costa 1/2 mi e Rodeo; e of Rodeo Comment
  SBBG5610  Dodecatheon clevelandii subsp. patulum J. M. Tucker 1946-3-24 1384 Contra Costa hills between Nortonville and Somersville 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
  UC673501  Dodecatheon clevelandii subsp. patulum Herbert L. Mason 1929-3-15 5056 Contra Costa summit of hill e Nortonville; e of Nortonville Comment
  JEPS9520  Dodecatheon hendersonii W. L. Jepson 1923-3-11 9848 Contra Costa Mt. Diablo 396 Comment
  UC1111024  Dodecatheon hendersonii Herbert L. Mason 1926-3-7 2700 Contra Costa Mt. Diablo Comment
  SEINET8733889 Image available Downingia elegans H. S. Reed 1940-1 356 a Contra Costa six miles south of Antioch 15 Comment
  UC1189259  Downingia insignis John R. Swanson 1958-4-15 236 Contra Costa 3 mi s Byron (at junction of Holey road) Comment
  UC407372  Downingia insignis Ira L. Wiggins 1930-4-17 4570 Contra Costa 0.25 mi s Byron Comment
  SJSU3103  Downingia ornatissima var. eximia J. A. Johnson 1956-4-7 11 Contra Costa 1.5 mi E of Concord in El Monte District Comment
  UC765585  Downingia ornatissima var. eximia R. F. Hoover 1941-4-12 4841 Contra Costa 2 mi s Antioch Comment
  JEPS14473  Downingia pulchella G. Thomas Robbins with Peter H. Raven 1956-4-28 3666 Contra Costa just e. of Martinez junction & 0.1 mi w. of Buchanan Field Rd. State Hwy. 4 Comment
  POM312380  Downingia pulchella Francia Chisaki, S. Galen Smith, Peter M. Ray 1951-4-14 1980 Contra Costa 7 miles N of Walnut Creek, E of Hwy 21, 0.2 mile S of intersection with Hwy 4. Comment
  UC2027994  Draba verna Barbara Ertter with Tony Morosco 1998-4-12 16024 Contra Costa Mount Olympia on north side of Mount Diablo, midway down Olympia Road from summit. Comment
  CAS-BOT-BC159644  Drymocallis glandulosa var. glandulosa Mary L. Bowerman 1938-6-14 3679 Contra Costa Canyon Nook, one foot above stream - Mount Diablo Comment
  UC691090  Drymocallis glandulosa var. wrangelliana Mary L. Bowerman 1931-4-19 748 Contra Costa Mitchell Canyon Mount Diablo, Mitchell Canyon Comment
  CDA42720  Dryopteris arguta A. G. Murdock 2004-2-12 205 Contra Costa Franklin Canyon - McHarry Ranch Road. Comment
  JEPS111936  Dryopteris arguta D. G. Kelch 2005-5-1 05 .190 Contra Costa Crockett - Edwards Canyon 150 Comment
  SD70421  Dudleya abramsii subsp. setchellii W. L. Jepson 1918-6-5 7604 Contra Costa Mt. Diablo, on north peak. 1064 Comment
Read comments
Feb 4 2013
  CAS-BOT-BC197108  Echinochloa crus-galli John Thomas Howell; Gordon H. True 1972-6-29 48942 Contra Costa Along Byron Hot Springs Road where water has stood, southeast of Byron Comment
  UC1795670  Echinochloa crus-galli Barbara Ertter, Kristin Ertter 1995-7-11 14486 Contra Costa West side of Mt Diablo; mudflat around inlet to Pine Pond. Comment
  UC1606287  Egeria densa Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10864 Contra Costa just w Antioch marina (accessed from marina); Dow Wetlands Preserve Comment
  RSA756015  Eichhornia crassipes Barbara Ertter 1990-9-16 9642 Contra Costa Junction of Cypress Road and Jersey Island Road east of Oakley. Comment
  CAS-BOT-BC211459  Elaeagnus angustifolia Dr. E. C. Van Dyke 1941-10-4 s.n. Contra Costa River bank east of Antioch Comment
  JEPS45767  Elatine heterandra W. L. Jepson 1891-5-22 13954 Contra Costa Walnut Creek Comment
  UC1606337  Eleocharis acicularis Barbara Ertter, Brad Olson 1991-9-28 10832 Contra Costa S end of San Pablo Reservoir between Orinda and El Sobrante Comment
  JEPS111879  Eleocharis macrostachya A. G. Murdock 2004-4-30 250 Contra Costa McEwen Road West side of road in boggy wetland. 130 Comment
  UC691970  Eleocharis macrostachya Mary L. Bowerman 1938-5-28 3645 Contra Costa Maple Spring, on upper margin especially in the NW corner Mount Diablo Comment
  UC691974  Eleocharis macrostachya Mary L. Bowerman 1935-6-21 3151 Contra Costa S of Turtle Rock (tiny pool above main pond); Mount Diablo Comment
  CAS-BOT-BC112794  Eleocharis macrostachya Barrett Anderson 1987-4-29 3484 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD. 125 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
  SEINET3558852 Image available Ellisia membranacea Lewis S. Rose 1933-3-10 33011 Contra Costa Brentwood. Comment
  RSA108337  Elymus X gouldii Frank W. Gould 1941-5-6 1288 Contra Costa 2.3 miles from Walnut Creek on Danville road. 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
  JEPS111076  Elymus X hansenii Lee Echols 2003-5-4 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
  UC691273  Elymus glaucus Mary L. Bowerman 1933-8-26 2414 Contra Costa Lower Canyon Spring Mount Diablo 1005 Comment
  POM300594  Elymus glaucus Mary L. Bowerman 1935-5-16 3009 Contra Costa Behind Gabriel-Hinks' (east side of North Peak) 290 Comment
  UC2028480  Elymus multisetus Barbara Ertter with Richard K. Brummitt 1998-5-6 16103 Contra Costa Point San Pablo west of Richmond, crest of road to yacht harbor Comment
  CDA2040  Elytrigia elongata T. C. Fuller 1961-9-13 7001 Contra Costa Hwy J4, ca. 4 miles southeast of Byron. 0 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
  RSA128915  Emmenanthe penduliflora Peter H. Raven 1950-7-5 2480 Contra Costa A flat on south side of Mt. Diablo. 1067 Comment
  UC672376  Emmenanthe penduliflora Herbert L. Mason 1928-4-22 4434 Contra Costa Sycamore Canyon, south slope of Mount Diablo Comment
  UCD105401  Epilobium brachycarpum Peter Rubtzoff 1954-9-14 1748 Contra Costa Lower San Joaquin River, E of Antioch. Comment
  UC421666  Epilobium campestre John Thomas Howell 1929-7-20 4331 Contra Costa Pittsburg 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
  UC692446  Epilobium campestre Mary L. Bowerman 1935-6-28 3173 Contra Costa s summit (vernal pool 300 yd e of meridian fence line); Mt. Diablo 487 Comment
  UC634754  Epilobium canum subsp. canum H. L. Mason 1924-11-23 1169 Contra Costa Las Trampas Ridge Comment
  CAS-BOT-BC166163  Epilobium canum subsp. canum L. R. Abrams 1910-10-8 4338 Contra Costa Mt. Diablo near Wall Pt. 457 Comment
  CDA38070  Epilobium ciliatum D. G. Kelch 2003-8-13 3 .142 Contra Costa Carquinez Strait; Pinole Creek. Comment
  JEPS111567  Epilobium ciliatum D. G. Kelch 2003-8-13 03 .142 Contra Costa Pinole Creek 68 Comment
  UC2028971  Epilobium ciliatum subsp. ciliatum Barbara Ertter 2000-7-16 17393 Contra Costa lower Pine Creek in Diablo Foothills Regional Park. Comment
  CDA9494  Epilobium cleistogamum D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .218 Contra Costa Byron Airport. Comment
  UC85551  Epilobium cleistogamum Katharine Brandegee 1907-6-16 Contra Costa clay depressions between Antioch and Marsh Creek (type locality) Comment
  RSA0027403  Epipactis helleborine Barbara Ertter 1999-7-17 16769 Contra Costa Tilden Regional Park, trail to Jewel Lake paralleling Wildcat Creek, through thick woodland growth. Comment
  UC692137  Equisetum X ferrissii Mary L. Bowerman 1933-11-4 2460 Contra Costa toward head of the spring in rocky gully Alder Creek Springs; Mt. Diablo 487 Comment
  JEPS79478  Equisetum hyemale subsp. affine Edward Lee with C. Belshaw 1935-7-28 1700 Contra Costa w. end Las Trampas Ridge 426 Comment
  UC2029183  Equisetum hyemale subsp. affine Barbara Ertter 2000-7-16 17394 Contra Costa lower Pine Creek in Diablo Foothills Regional Park. Comment
  UC2028554  Equisetum telmateia subsp. braunii Barbara Ertter 1998-11-15 16462 Contra Costa North side Mount Olympia on north side Mount Diablo Comment
  UCD63196  Eragrostis curvula George W. Murray 1964-7-24 Contra Costa Along dry roadside cut, 1 to 2 miles E of Clayton, Marsh Creek Road. Comment
  UC1152689  Eragrostis curvula var. curvula George W. Murray 1964-7-24 Contra Costa 1 to 2 mi. e. Clayton (Marsh Creek Rd.) Comment
  UCD64352  Eragrostis pectinacea var. pectinacea Beecher Crampton 1965-9-29 7529 Contra Costa 2 miles north of Brentwood. Comment
  UC630417  Eremocarpus setiger Paule Guiget and Annetta Carter 1939-8-13 1452 Contra Costa on Marsh Creek rd 2.8 mi e Clayton 213 Comment
  UC692710  Eremocarpus setiger Mary L. Bowerman 1930-10-4 485 Contra Costa South road near entrance; Mount Diablo Comment
  OBI16592  Ericameria arborescens H. E. McMinn 1936-1 4453 Contra Costa Mt. Diablo Comment
  UC1118629  Ericameria arborescens R. W. Lundh 1932-8-29 153 Contra Costa 2/3 mi n of Eagle Point; Mt. Diablo Quadrangle 457 Comment
  JEPS31300  Ericameria linearifolia W. L. Jepson 1921-5-22 9203 Contra Costa summit Mount Diablo 1127 Comment
  UC36557  Ericameria linearifolia F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  UCD102386  Ericameria linearifolia 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
  RSA22313  Erigeron petrophilus Joseph A. Ewan 1936-7-5 9735 Contra Costa Wildcat Creek. Comment
  UC697208  Erigeron philadelphicus var. philadelphicus Mary L. Bowerman 1935-5-16 2998 Contra Costa Russelman Park road at Gregory Ranch junction; Mount Diablo 289 Comment
  UC1613946  Eriodictyon californicum Charles M. Belshaw 1935-6-24 1027 Contra Costa Sobrante Hills Comment
  CAS-BOT-BC253239  Eriogonum fasciculatum var. foliolosum R. E. Frenkel 1963-11-2 304 Contra Costa Tilden Park, 1/4 mile south-east of Tilden Park Botanical Garden on east side of South Park Drive Comment
  CAS-BOT-BC250381  Eriogonum gracile Mary L. Bowerman 1932-8-27 1524 Contra Costa Mount Diablo. South of Turtle Rock Comment
  CAS-BOT-BC250385  Eriogonum gracile Robert F. Hoover 1940-11-23 4695 Contra Costa Two miles west of Byron Comment
  CAS-BOT-BC250386  Eriogonum gracile Lewis S. Rose 1955-10-17 55187 Contra Costa Antioch 15 Comment
  UC2028232  Eriogonum gracile Barbara Ertter 1998-11-15 16464 Contra Costa North side Mount Olympia on north side Mount Diablo. Comment
  CAS-BOT-BC268918  Eriogonum nudum var. auriculatum L. R. Abrams 1910-10-8 4340 Contra Costa Mt Diablo 609 Comment
  UC692046  Eriogonum nudum var. auriculatum Mary L. Bowerman 1931-9-12 1037 Contra Costa Mitchell Canyon, spur jutting out into w fork Mount Diablo 838 Comment
  CAS-BOT-BC268909  Eriogonum nudum var. auriculatum John Thomas Howell 1930-7-4 5337 Contra Costa In the north Berkeley Hills Comment
  POM300598  Eriogonum nudum var. auriculatum Mary L. Bowerman 1932-9-17 1585 Contra Costa Mount Diablo: Donner Canyon, west fork of west fork 335 Comment
  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
  JEPS102915  Eriogonum roseum Barbara Ertter with Tony Morosco 1998-10-18 16436 Contra Costa NE corner of Lime Ridge recreation Area Mount Diablo 182 Comment
  RSA0033856  Eriogonum roseum Barbara Ertter, Tony Morosco 1998-9-18 16436 Contra Costa NE corner of Lime Ridge Open Space northwest of Mount Diablo. 182 Comment
  RSA766267  Eriogonum roseum Joseph A. Ewan 1933-10-15 8022 Contra Costa Grassy slope above Indian Ceremonial Spr., Mt. Diablo Comment
  UC6492 Image available Eriogonum truncatum State Survey 1862-5-29 1186 Contra Costa Camp 71, Marsh's Ranch, Contra Costa Co. Comment
  UC85395  Eriogonum truncatum C. F. Baker 1903-4-28 2833 Contra Costa Marsh Creek Mt. Diablo, Marsh Creek Comment
  UCR139461  Eriogonum truncatum J. T. Howell 1934-4-8 11816 Contra Costa San Francisco Bay Region, [Black Hills] 10 mi from Clayton [SE] on Marsh Creek Road 366 Comment
  CAS-BOT-BC267871  Eriogonum umbellatum var. bahiiforme A. D. E. Elmer 1903-7-1 4547 Contra Costa Mount Diablo Comment
  JEPS108318  Eriogonum umbellatum var. bahiiforme David Gowen 2005-5-29 399 Contra Costa West of Morgan Territory Rd. and the main entrance to Morgan Territory Regional Preserve. Rocky area west of summit of hill 2581 (Tassajara Pk.?). Comment
  UCD101575  Eriogonum wrightii var. trachygonum Osterli 1950-10-1 s.n. Contra Costa Contra Costa County. Comment
  JEPS97525  Eriophyllum confertiflorum R. D. Stone 1980-7-13 269 Contra Costa NE of intersection of Skyline Ave. and Snake Blvd. Huckleberry Trail; Oakland Hills 396 Comment
  SEINET10761151  Eriophyllum jepsonii Barbara J. Ertter, Holly Forbes 1997-4-20 Ertter 15562 Contra Costa North base of Mount Diablo, Eagle Peak Trail on NE side of Eagle Ridge below Twin Peaks, mixed chaparral-brush with Ptelea et al. Comment
  CAS-BOT-BC300968  Eriophyllum lanatum var. achilleoides John Thomas Howell 1923-11-12 244 Contra Costa Mt. Diablo Comment
  UC194915  Eriophyllum lanatum var. achilleoides H. M. Hall 1916-5-31 10134 Contra Costa s side of summit Mt. Diablo 1170 Comment
  UC31674  Eriophyllum lanatum var. achilleoides W. L. Jepson May 22 1891-May 23 1891 Contra Costa Mt. Diablo Comment
  UC691665  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1935-5-22 3065 Contra Costa Eagle Point Ridge = most w of two ridges which converge at Twin Peaks; Mt. Diablo, Eagle Point Ridge 365 Comment
  UC691723  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1935-5-30 3097 c Contra Costa between the two ridges which converge at Twin Peaks (Eagle Point ridge) Mount Diablo 350 Comment
  UCD132203  Eriophyllum lanatum var. achilleoides P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CAS-BOT-BC300971  Eriophyllum lanatum var. achilleoides H. E. McMinn 1922-6-30 98 Contra Costa On way up Mt. Diablo, less 1/2 way up Comment
  CAS-BOT-BC300975  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1930-6-28 388 Contra Costa Mount Diablo Comment
  CAS-BOT-BC300976  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1938-6-14 3687 Contra Costa Mount Diablo. 0.3 mile below Muir Area 960 Comment
  JEPS34592  Eriophyllum lanatum var. achilleoides W. L. Jepson 1918-6-5 7608 Contra Costa on the n peak Mt. Diablo 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
  JEPS107133  Eriophyllum staechadifolium Barbara Ertter, Brad Olson 1994-5-7 12759 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  UC571141  Erodium botrys A. E. Borell 1928-3-31 75 Contra Costa Richmond Comment
  SEINET5604448 Image available Erodium cicutarium Rachel Van Noord 1998-1 4 Contra Costa Dinosaur Hill Park, Pleasant Hill, CA N 37* 56.149' W 122* 05.391 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
  JEPS105747  Erodium macrophyllum Barbara Ertter with David Gowen, Mike Park, Wilde Legard 2004-4-13 18346 Contra Costa Black Diamond Mines Regional Preserve, WSW-facing slope above water tank E of River View Loop Trail, over saddle E of park headquarters at Sidney Flat 182 Comment
  UCD103262  Erodium moschatum P. B. Kennedy 1925-4-26 s.n. Contra Costa Mt. Diablo. Comment
  CAS-BOT-BC211072  Eryngium Katharine Brandegee 1907-5-16 s.n. Contra Costa Antioch Comment
  UC691774  Eryngium aristulatum var. aristulatum Mary L. Bowerman June 1942 3850 Contra Costa South Rd. Mt.Diablo Comment
  POM133545  Eryngium aristulatum var. aristulatum Katherine Brandegee 1907-5-16 s.n. Contra Costa [Unspecified] Comment
  JEPS17451  Eryngium armatum W. L. Jepson 1922-7-9 9732 Contra Costa Richmond Comment
  JEPS121010  Eryngium armatum D. G. Kelch 2007-6-16 07 .464 Contra Costa Pt. Pinole, N spur of Park, near shore Comment
  JEPS78607  Eryngium articulatum Walter Knight, L. R. Heckard, and Bert Johnson 1978-9-28 3291 Contra Costa Browns Island, Botany Cove Comment
  UC2028328  Eryngium jepsonii Barbara Ertter with Richard K. Brummitt 1998-5-13 16136 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, head of SE branch of Loughler Loop Trail. Comment
  CDA9503  Eryngium spinosepalum D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .23 Contra Costa Byron Airport. Comment
  SEINET9111554  Eryngium vaseyi var. castrense Lincoln Constance, Alava, Reino and Bacigalupi, Rimo 1958-6-6 3661 Contra Costa Open country 3 miles southeast of Byron, San Joaquin Valley 11 Comment
  CAS-BOT-BC40762  Erysimum capitatum W. W. Carruth 1901-3-1 s.n. Contra Costa Mount Diablo. Comment
  CAS-BOT-BC40766  Erysimum capitatum Alice Eastwood; John Thomas Howell 1936-4-19 2151 Contra Costa Antioch sand hills. Comment
  CAS-BOT-BC40768  Erysimum capitatum G. B. Rossbach; R. P. Rossbach 1938-6-5 858 a Contra Costa Along tidal estuary of San Joaquin River just east of Antioch. Comment
  CAS-BOT-BC40769  Erysimum capitatum G. B. Rossbach; R. P. Rossbach 1938-6-5 858 b Contra Costa Along tidal estuary of San Joaquin River just east of Antioch. Comment
  CAS-BOT-BC40772  Erysimum capitatum Robert F. Hoover 1935-3-10 305 Contra Costa Antioch. Comment
  CAS-BOT-BC41526  Erysimum capitatum H. L. Mason 1933-4-9 7189 Contra Costa East of Antioch along the San Joaquin River. 12 Comment
  SJSU1509  Erysimum capitatum D. J. Thompson 1954-5-2 Contra Costa between Pinole & Pittsburg Comment
  UC1034902  Erysimum capitatum G. B. and R. P. Rossbach 1938-6-5 859 Contra Costa steep southerly slope near summit; Mt. Diablo Comment
  CDA33846  Erysimum capitatum D. G. Kelch 2010-5-15 10 .116 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 Comment
  RSA102133  Erysimum capitatum var. angustatum G. B. Rossbach 1955-3-13 570 Contra Costa Along tidal estuary of San Joaquin River just E of Antioch 24 Comment
  RSA0008587  Erysimum capitatum var. angustatum Alice Eastwood, J. T. Howell 1936-4-19 s.n. Contra Costa Antioch Comment
  UC10566  Erysimum capitatum var. capitatum J. Burtt Davy 1895-4-7 996 Contra Costa foothills Antioch 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
  CHSC75109  Eschscholzia californica Roger Thom 1987-4-21 6 Contra Costa 3300 block of Johnson Rd. Lafayette. 167 Comment
  UC692172  Eschscholzia californica Mary L. Bowerman 1935-5-22 3059 Contra Costa saddle w Twin Peaks (Eagle Point ridge); Mount Diablo 441 Comment
  UC692180  Eschscholzia californica Mary L. Bowerman 1932-3-27 1144 Contra Costa near Mitchell Rock (on e side); Mount Diablo Comment
  PASA450  Eschscholzia californica Annetta Carter 1929-3-31 Contra Costa Near Clayton. Hills north of Mt. Diablo Comment
  CAS-BOT-BC5937  Eschscholzia recta Mary Katherine (Mrs.) Brandegee 1889-5-1 s.n. Contra Costa Antioch Comment
  JEPS96222  Eucalyptus globulus Barbara Ertter, Brad Olson 1993-10-30 12293 Contra Costa w. of R.R. tracks n. of mouth of Pinole Creek (along R.R. track at edge of salicornia marsh, San Pablo Regional Shoreline); San Pablo Regional Shoreline Comment
  UC1789218  Eucalyptus tereticornis Barbara Ertter 1993-11-13 12318 Contra Costa Sibley Volcanic Regional Preserve in Oakland Hills S of Orinda, pine & eucalypt forest on south side of Round Top, ca 1500 ft.; locally established tree with peeling bark. Comment
  CDA40312  Eucrypta chrysanthemifolia D. G. Kelch 2005-5-13 5 .273 Contra Costa Carquinez Strait Region; Martinez - West: Ozol Rock and Scenic Drive, near Ozol Rock. Comment
  JEPS1714  Eucrypta chrysanthemifolia var. chrysanthemifolia Mary L. Bowerman 1932-3-6 1102 Contra Costa Sycamore Canyon Sycamore Canyon, Mount Diablo; Mount Diablo Comment
  UC692714  Euphorbia crenulata Mary L. Bowerman 1930-8-24 417 Contra Costa Mitchell Canyon; Mount Diablo Comment
  CDA17966  Euphorbia oblongata R. M. Case 1999-10-5 PDR 004978 Contra Costa Central California; Wildcat Canyon Rd. at Tilden Park Golf Course above Berkeley. 0 Comment
  UCR247571  Euphorbia oblongata Deviney 2008-4-18 s.n. Contra Costa Pacheco, Waterbird Way and Hwy 680 Comment
  CDA4844  Euphorbia oblongata T. C. Fuller 1961-7-6 6585 Contra Costa Carquinez Strait; Alhambra Valley, Highway 4, 0.5 mile west of Glen Frazier Station, ca. 4 miles west of Martinez. 0 Comment
  RSA119277  Euphorbia oblongata T. C. Fuller 1958-7-30 s.n. Contra Costa Contra Costa County: bench above creek and along roadside, Hwy 4, 3 miles W of Martinez Comment
  CAS-BOT-BC202389  Euphorbia ocellata Lewis S. Rose 1953-10-12 53096 Contra Costa Mt. Diablo, west slope 381 Comment
  UCD142475  Euphorbia peplus Terri Williamson 1990-5-22 68 Contra Costa Pleasant Hill, 212 Poshard Street. 12 Comment
  UC2062608  Euphorbia spathulata Barbara Ertter with David Gowen, Mike Park, Wilde Legard 2004-4-13 18345 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, east of River View Loop Trail, over saddle east of park headquarters at Sidney Flat Comment
  UC1999853  Eurybia radulina J. C. Semple, B. A. Suripto, T. Ahmed 1990-8-16 9340 Contra Costa Charles Tilden Reg. Park; Vollmer Peak. Comment
  CDA4937  Euthamia occidentalis Niang, Jeffery 2007-8-1 PDR# 1455280 Contra Costa Concord; Canal at Walnut Ave, near Clayton Rd. Comment
  CAS-BOT-BC310643  Euthamia occidentalis Vincent Jones 1920-8-29 s.n. Contra Costa Orwood Comment
  UC2032820  Festuca myuros Doran, Andrew Scott 2012-3-20 690 Contra Costa North end of Brooks Island along ridge overlooking artificial spit, southwest of caretakers residence. Comment
  POM205843  Festuca rubra Jos Burtt Davy 1897-04 s.n. Contra Costa Point Isabel. Comment
  SEINET257715 Image available Festuca rubra M. Barkworth, D Amme 1989-6-15 5168 Contra Costa Bluffs back of beach just N of Castro Point Comment
  UCD66332  Festuca rubra P. B. Kennedy 1919-5-1 s.n. Contra Costa North Berkeley. Hills. Comment
  SEINET10590890  Festuca rubra Barbara J. Ertter, B. Olson 1994-5-7 Ertter 12752 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay. Intact coastal prairies above bluff just south of park, between road and bay, with dense Festuca. Coastal form, tufted (a=on bluffs). Comment
  CDA5267  Filago californica D. G. Kelch, A. G. Murdock 2005-5-13 5 .278 Contra Costa Carquinez Strait Region; Martinez - West: Ozol Rock and Scenic Drive. Comment
  UC691905  Forestiera pubescens Mary L. Bowerman 1936-6-20 3414 Contra Costa w side of ridge w Mt. Zion; Mount Diablo 198 Comment
  CAS-BOT-BC384137  Forestiera pubescens subsp. parvifolia John Thomas Howell 1933-3-29 10905 Contra Costa Canyon below Nortonville Comment
  CAS-BOT-BC223860  Frankenia salina L. R. Abrams 1916-7-1 5730 Contra Costa Near Martinez Comment
  JEPS74307  Frankenia salina John Thomas Howell and Gordon H. True 1972-6-29 48919 Contra Costa Byron Hot Springs Road se Byron Comment
  UC2028959  Frankenia salina Barbara Ertter 2002-8-24 18022 Contra Costa Dunn Creek south of Mount Diablo Mine property on NE base of Mount Diablo. Comment
  UC1123360  Fraxinus dipetala C. M. Belshaw 1936-5-15 2128 Contra Costa Stewartsville Mt. Diablo Quad. 228 Comment
  UC1753841  Fraxinus dipetala Annetta M. Carter, Leo Bowerman 1935-6-1 875 Contra Costa Mt. Diablo. NW facing slope, W side of main peak. 1005 Comment
  UC1795649  Fraxinus dipetala Barbara Ertter, Brad Olson, Diane Lake, Seth Adams, et al. 1994-9-11 13081 Contra Costa Chaparral Springs addition to Mt. Diablo State Park, north side of Marsh Creek Road at high point southeast of Clayton, open oak woodland (Canyon live oak, blue oak, buckeye); north facing slope with local grove of Fraxinus, Aesculus, toyon. Comment
  UC13831  Fritillaria liliacea J. P. Tracy 1900-3-24 612 Contra Costa near Point Richmond (San Francisco Bay Region); San Francisco Bay Region 3 Comment
  CDA3561  Fumaria capreolata D. G. Kelch, A. G. Murdock 2005-5-5 5 .208 Contra Costa Carquinez Strait Region; Point Pinole - Giant Marsh. Giant Salt Marsh. Comment
  SD241825  Fumaria capreolata Barbara Ertter 1999-3-21 16486 Contra Costa Miller Knox Regional Park near Point Richmond, edge of old excavation into rock (southeast of Richmond Ramblers building) Comment
  JEPS7031  Galium andrewsii subsp. gatense Miss Ferguson Contra Costa Donner Canyon Mt. Diablo Comment
  CDA33841  Galium andrewsii subsp. gatense D. G. Kelch 2010-5-15 10 .119 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 Comment
  CHSC21612  Galium aparine Willis Ball 1975-2-23 440 Contra Costa Contra Loma Regional Park. In area #2. On SE side of hill ca. 20 yds W of boat ramp at W side of lake. 45 Comment
  UC1039519  Galium aparine Herbert L. Mason 1932-3-20 6840 Contra Costa Antioch sand hills Comment
  RSA760669  Galium aparine William J. Ferlatte, L. Maynard Moe 1970-4-27 1247 Contra Costa San Francisco Bay, Red Rock Island. Comment
  LA208411  Galium californicum Joseph Andorfer Ewan; 1935-5-26 9299 Contra Costa Tufts in rock crevices and about outcrops. E slope Bald Peak, San Pablo Ridge 548 Comment
  JEPS49754  Galium murale Rimo Bacigalupi, and Alice Howard, and Paul Hutchison 1967-3-29 9222 Contra Costa upper reaches of canyon Las Trampas Ridge, Bolinger Canyon (w slope of ridge) 381 Comment
  SBBG27401  Galium murale J. T. Howell 1942-4-26 16953 Contra Costa Redwood Cyn, Oakland Hills Comment
  UC1618369  Galium murale Barbara Ertter, Chris Thayer 1993-5-7 11715 Contra Costa 1/2 mi n of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land e of Tilden Park (s of Wildcat Canyon Road); East Bay Municipal Utilities District land Comment
  UC2028273  Galium murale Barbara Ertter 1999-6-12 16703 Contra Costa Black Hawk Ridge Road between Knobcone Point Road and NE fork of Sycamore Creek, South side of Mount Diablo. Comment
  UC691533  Galium porrigens Mary L. Bowerman 1935-5-16 2982 Contra Costa flat at end of road Mount Diablo, Russelman Park 381 Comment
  JEPS52754  Galium porrigens var. porrigens Lauramay T. Dempster 1963-5-30 3805 Contra Costa 15 El Toyonal Orinda Comment
  JEPS6608  Galium porrigens var. porrigens Mary L. Bowerman 1930-6-22 370 Contra Costa Deer Flat Mount Diablo Comment
  JEPS99945  Galium porrigens var. porrigens G. Smick 2003-2-20 GAS 51 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC200632  Garrya elliptica H. E. McMinn 1925-3-30 1403 Contra Costa Near summit Thornhill Rd and Skyline Blvd. Comment
  CAS-BOT-BC200633  Garrya elliptica H. E. McMinn 1925-1-1 s.n. Contra Costa Head of San Leandro Creek Comment
  CAS-BOT-BC282607  Gastridium phleoides Virginia E. Long 1933-6-14 224 a Contra Costa Curry Cave Trail, Mt. Diablo 457 Comment
  CAS-BOT-BC282611  Gastridium phleoides Mary L. Bowerman 1935-7-22 3191 Contra Costa Hidden Pond, Mount Diablo Comment
  CDA9420  Gastridium ventricosum D. G. Kelch 2004-5-3 4 .152 Contra Costa Carquinez Strait; Mt Wanda, Martinez. 0 Comment
  UC585537  Gastridium ventricosum Virginia E. Long 1933-6-14 224 a Contra Costa ridge entering W Fork of Curry Cave trail canyon Mt. Diablo; , ridge entering W Fork of Curry Cave trail canyon Comment
  HSC8643  Geranium carolinianum Greg Bos 1963-3-9 31 Contra Costa Point Isabel, Richmond 3 Comment
  CDA4659  Geranium dissectum D. G. Kelch, A. G. Murdock 2003-3-28 3 .089 Contra Costa Carquinez Strait Region; Rodeo - Lone Tree Point. Comment
  UC571135  Geranium dissectum A. E. Borell 1928-3-31 78 Contra Costa Richmond Comment
  UCD103337  Geranium dissectum Morris Halperin 1929-4-21 s.n. Contra Costa Moraga Valley. Comment
  UC1861827  Geranium molle Barbara Ertter, Chris Thayer 1995-4-25 13985 Contra Costa Southeast side of Mt. Diablo northeast of Danville; on Sycamore Creek near junction of path from Knobcone Point Rd. 396 Comment
  UC2032837  Geranium molle Doran, Andrew Scott 2012-3-20 707 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. 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
  UC2029017  Geranium robertianum Barbara Ertter 1999-7-17 16768 Contra Costa Tilden Regional Park, trail to Jewel Lake paralleling Wildcat Creek, through thick woodland growth. 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
  JEPS75513  Gilia achilleifolia subsp. achilleifolia P. F. Yorks 1974-4-28 141 Contra Costa on Hampton Road ca 1.9 km s Bear Creek Road (n of Briones Reservoir, Hampton Road Natural Reserve); Hampton Road Natural Reserve, n of Briones Reservoir 200 Comment
  UC691599  Gilia achilleifolia subsp. achilleifolia Mary L. Bowerman 1935-5-8 2970 Contra Costa Muir Area, Mount Diablo Mount Diablo, Muir Area 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
  RSA470088  Gilia achilleifolia subsp. multicaulis L. S. Rose 1941-5-15 41231 Contra Costa Mt. Diablo, w. slope. 396 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
  RSA722061  Gilia achilleifolia subsp. multicaulis Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14226 Contra Costa Mt. Diablo southeast of Walnut Creek, serpentine knoll ca 1/2 airmile north of Curry Point 488 Comment
  UC691646  Gilia capitata subsp. capitata Mary L. Bowerman 1933-6-7 2253 Contra Costa just e of saddle between Meridian and North Peaks; Mount Diablo, just e of saddle btw Meridian and North Peaks 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
  POM223334  Gilia clivorum L. S. Rose 1935-5-16 351 75 Contra Costa Mt. Diablo. 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
  UC691652  Gilia clivorum Mary L. Bowerman 1935-4-19 2857 Contra Costa West Road 3.5 mi from entrance (( = North Road), Mount Diablo); Mount Diablo, West Road (=North Road) 365 Comment
  UCR182844  Gilia clivorum Peter L. Morrell, N. Takebayashi, Diana Wolf, D. E. Krause 1995-5-21 471 Contra Costa Central Coast, S of Clayton in Mitchell Canyon, above the banks of Mitchell Creek and beneath Eagle Peak 400 Comment
  UC2028156  Gilia clivorum Barbara Ertter 1998-4-4 15955 Contra Costa Shell Ridge Open Space northwest of Mount Diablo. Comment
  UCR124270  Gilia multicaulis L. S. Rose 1935-5-16 35175 Contra Costa Mt. Diablo Comment
  UC691597  Gilia tricolor subsp. tricolor Mary L. Bowerman 1935-4-19 2864 Contra Costa West Road = North Road 6.3 mi from entrance Mount Diablo (Mount Diablo, above Pepperwood Spring); Mount Diablo, above Pepperwood Spring 609 Comment
  UC908576  Gilia tricolor subsp. tricolor Herbert L. Mason 1929-3-29 5118 Contra Costa Mount Diablo 762 Comment
  CAS-BOT-BC266489  Githopsis diffusa Alice Eastwood 1915-5-30 s.n. Contra Costa Mount Diablo Comment
  UCD84951  Glyceria leptostachya Chuck Hughes 2010-3-29 223 Contra Costa About 0.4 mile southeast of Vasco Road. 123 Comment
  CDA35615  Gnaphalium californicum I. Godwyn 2011-5-12 PDR# 1649778 Contra Costa Richmond; Wildcat Canyon Regional Park, near McBryde Ave. 0 Comment
  UC1618414  Gnaphalium palustre Barbara Ertter, Brad Olson 1991-9-28 10835 Contra Costa between Orinda and El Sobrante (at s end of San Pablo Reservoir); San Pablo Reservoir 91 Comment
  UCR247431  Gnaphalium stramineum Dean Kelch, Abigail Moore 2009-5-30 09 .317 Contra Costa Carquinez Strait, west of 5th St Prairie, Crockett 75 Comment
  CDA6050  Grindelia X paludosa D. G. Kelch, A. G. Murdock 2003-8-13 3 .103 Contra Costa Carquinez Strait Region; Martinez Marsh. Comment
  LA203655  Grindelia camporum Lewis S. Rose; 1930-7-22 sn Contra Costa Antioch Bridge Comment
  RSA97489  Grindelia camporum L. S. Rose 1954-9-27 54116 Contra Costa Byron. 6 Comment
  CDA6078  Grindelia camporum var. camporum A. G. Murdock, D. G. Kelch 2004-5-28 284 Contra Costa Carquinez Strait; Pinole Peak. 0 Comment
  SEINET10925203 Image available Grindelia camporum var. parviflora John Thomas Howell 1930-9-28 Howell 5496 Contra Costa Liberty School on Marsh Creek Road, Contra Costa Co. Comment
  CAS-BOT-BC305244  Grindelia hirsutula Walter Knight; I. Knight; E. McClintock; J. T. Howell; S. Rae; B. Doyle 1978-9-5 3210 Contra Costa Browns Island. Botany Cove Comment
  JEPS19400  Grindelia hirsutula G. Thomas Robbins 1937-4-17 135 Contra Costa near Point Richmond Comment
  JEPS25015  Grindelia hirsutula G. Thomas Robbins 1958-10-2 3941 Contra Costa just w Carlson Blvd. (near Stege railroad siding, along Southern Pacific Railroad); Richmond Comment
  JEPS75516  Grindelia hirsutula P. F. Yorks 1975-7-31 482 Contra Costa 2.5 km s Bear Creek Road (on Hampton Road, just n of Briones Reservoir); Hampton Road Natural Reserve 200 Comment
  UC1118559  Grindelia hirsutula H. S. Yates 1934-9-2 4079 Contra Costa Wildcat Creek Concord Quad., Wildcat Creek 304 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
  CAS-BOT-BC305249  Grindelia hirsutula R. F. Hoover 1966-8-31 9945 Contra Costa 1.5 mi. e. of Danville, at junction of Tassajara and Freitas Roads Comment
  UC796509  Guillenia flavescens Reed C. Rollins 1946-3-25 3046 Contra Costa w slope Mount Diablo Comment
  POM273845  Guillenia lasiophylla Lyman Benson 1935-3-16 6284 Contra Costa 3 miles S of Antioch. Mt. Range: Mt. Diablo; Watershed: Sacramento River. 152 Comment
  RSA44375  Guillenia lasiophylla L. S. Rose 1949-3-24 49010 Contra Costa 1 mile W of Byron. 30 Comment
  CAS-BOT-BC304578  Gutierrezia californica Peter Rubtzoff 1954-9-14 1750 Contra Costa Along lower San Joaquin River, east of Antioch Comment
  RSA201182  Gutierrezia californica Peter Rubtzoff 1954-9-14 1750 Contra Costa Sand dunes along lower San Joaquin River, east of Antioch. Comment
  CAS-BOT-BC304581  Gutierrezia californica Mary L. Bowerman 1938-11-12 3729 Contra Costa Mount Diablo. Lime Ridge toward crest of hilllside north of break 152 Comment
  POM51392  Gutierrezia californica L. R. Abrams 1917-9-13 6728 Contra Costa Patterson Pass. Comment
  UC1005829 Image available Hakea oleifolia N. Floy Bracelin 1946-1-20 2864 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC306373  Helenium bigelovii Walter Knight; Joanne Dean 1978-8-14 3181 Contra Costa Browns Island Comment
  UC552471  Helenium bigelovii C. L. Swenson 1936-7-9 Contra Costa river sloughs near Antioch; San Joaquin River Comment
  CAS-BOT-BC306372  Helenium bigelovii Walter Knight 1979-6-15 3391 Contra Costa Browns Island. Crooked Slough Comment
  UC1192223  Helenium puberulum Malcolm A. Nobs and S. Galen Smith 1949-7-8 949 Contra Costa 4 mi n of Kingston (Otto's Black Bass Resort); Otto's Black Bass Resort Comment
  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-BC305329  Helianthella castanea L. R. Abrams 1921-5-25 8028 Contra Costa At summit, Mt. Diablo Comment
  RSA8535  Helianthella castanea J. T. Howell 1933-5-14 11282 Contra Costa Hills east of St. Mary's college Comment
  UC57441  Helianthella castanea H. M. Hall 1901-4-5 1733 Contra Costa Mt. Diablo Region of San Francisco Bay, Mt. Diablo Comment
  UC691738  Helianthella castanea Mary L. Bowerman 1930-6-10 301 Contra Costa Summit Meridian Peak; Mount Diablo Comment
  UC761942  Helianthella castanea R. F. Hoover 1939-4-13 4014 Contra Costa head (west branch) Markeley Canyon Comment
  CAS-BOT-BC305324  Helianthella castanea W. C. McCalla 1925-4-22 s.n. Contra Costa Leona Heights near Oakland Comment
  CAS-BOT-BC305330  Helianthella castanea L. R. Abrams 1921-5-25 8062 Contra Costa 1/2 way up road to summit Mt. Diablo Comment
  UC2028219  Helianthella castanea Barbara Ertter with Christopher Baysdorfer 1998-5-10 16127 Contra Costa West side Lime Ridge Open Space northwest of Mount Diablo. Comment
  CDA31041  Helianthemum scoparium D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .229 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  CAS-BOT-BC305593  Helianthus californicus L. R. Abrams 1910-10-8 4341 Contra Costa Mt. Diablo 609 Comment
  UC1618418  Helianthus californicus Barbara Ertter, Diane Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10719 Contra Costa west-most point opposite Pittsburg Marina (Browns Island n of Pittsburg near confluence of Sacramento and San Joaquin Rivers); Browns Island Comment
  UC1795840  Helianthus tuberosus Barbara Ertter 1995-9-30 14526 Contra Costa North bank of Cerrito Creek at end of Yosemite Avenue in El Cerrito, foot of Albany Hill; stonework bank at edge of overgrown sluggish creek. Comment
  UC407041  Heliotropium curassavicum Ira L. Wiggins 1930-4-18 4606 Contra Costa Jersey Isl. Comment
  CAS-BOT-BC306261  Hemizonia congesta subsp. lutescens H. M. Hall 1914-8-23 9860 Contra Costa San Pablo 9 Comment
  CAS-BOT-BC306266  Hemizonia congesta subsp. lutescens R. F. Hoover 1969-9-1 11568 Contra Costa Between San Pablo and Pinole Comment
  CAS-BOT-BC306265  Hemizonia congesta subsp. lutescens R. E. Frenkel 1963-8-18 260 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  JEPS99532  Hemizonia congesta subsp. luzulifolia Mary L. Bowerman 1993-10-17 Contra Costa Mount Diablo. Regency road. Comment
  UC1594202  Hemizonia congesta subsp. luzulifolia Jerry Powell 1992-6-17 1649 Contra Costa Richmond Field Station Comment
  UC697174  Hemizonia congesta subsp. luzulifolia Mary L. Bowerman 1933-5-25 2197 Contra Costa s-facing slope between forks of branch of Alamo Creek on s side main ridge; Mount Diablo, Oyster Ridge Comment
  CAS-BOT-BC314854  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1910-10-9 4358 Contra Costa Between San Ramon and Dublin Comment
  CAS-BOT-BC314859  Hemizonia congesta subsp. luzulifolia David D. Keck 1932-7-7 1740 Contra Costa 10 miles S. of Brentwood on Vasco Road to Livermore, southerastern Contra Costa County Comment
  CAS-BOT-BC314862  Hemizonia congesta subsp. luzulifolia Mary L. Bowerman 1938-9-11 3713 Contra Costa Curry Canyon where Sulphur Spring Canyon joins it, Mount Diablo 259 Comment
  CAS-BOT-BC314863  Hemizonia congesta subsp. luzulifolia Chas. M. Belshaw 1936-10-26 2722 Contra Costa Near Walnut Creek, Coast Ranges Comment
  UC2029028  Hemizonia congesta subsp. luzulifolia Barbara Ertter 2002-5-11 17833 Contra Costa southwest base of Mount Diablo, lower Dan Cook Canyon, Summit Trail paralleling park boundary. Comment
  UC217362  Hemizonia congesta subsp. luzulifolia H. M. Hall 1917-5-27 10314 Contra Costa Fish Ranch San Francisco Bay Region, Berkeley Hills Comment
  UC990629  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1909-9-24 Contra Costa San Ramon Road above Hayward (canyon) Comment
  RSA181368  Hemizonia fitchii James I. McMurphy 1908-10-18 s.n. Contra Costa Antioch. Comment
  POM301046  Hemizonia fitchii Mary L. Bowerman 1936-9-17 3548 Contra Costa North Road 2.5 miles from North Gate. 244 Comment
  POM360296  Hemizonia fitchii E. E. Stanford 1930-9-20 2100 Contra Costa Near Walnut Creek Comment
  SEINET2030221 Image available Hemizonia fitchii L. S. Rose 1941-10-13 1298 Contra Costa 1 mile east of Walnut Creek 50 Comment
  POM30955  Hemizonia kelloggii Katherine Brandegee 1907-5-5 19 Contra Costa Near Antioch. Comment
  POM194887  Hemizonia lutescens H. M. Hall 1914-8-23 9860 Contra Costa San Pablo 9 Comment
  RSA137096  Hemizonia luzulifolia J. T. Howell 1955-8-24 30900 Contra Costa Near Diablo County Club, south base of Mt. Diablo. Comment
  SEINET3386992 Image available Hemizonia luzulifolia Lewis S. Rose 1932-10-2 32652 Contra Costa Walnut Creek, Dry low hills, Walnut Creek. Comment
  CDA7803  Hemizonia pungens subsp. pungens T. C. Fuller 1961-7-6 7367 Contra Costa East of road, south end of Antioch bridge, Antioch. 0 Comment
  POM181072  Hemizonia pungens subsp. pungens J. T. Howell 1930-9-28 5489 Contra Costa 2 miles from Concord on road to Walnut Creek. Comment
  SEINET3387071 Image available Hemizonia virgata Lewis S. Rose 1932-10-2 32654 Contra Costa Marsh creek road. Comment
  CHSC21758  Heracleum lanatum Carol Getzinger 1964-4-26 52 Contra Costa Arlington Boulevard at Cutting Boulevard. 30 Comment
  JEPS75522  Heracleum lanatum P. F. Yorks 1974-5-19 160 A Contra Costa n. Briones Reservoir (ca. 1.7 km. s. of Bear Creek Rd. on Hampton Rd. in Hampton Road Natural Reserve); Hampton Road Natural Reserve 180 Comment
  UC901874  Heracleum lanatum L. Constance 1950-6-25 3326 Contra Costa s. rim Wildcat Canyon (Tilden Park); , Tilden Park 365 Comment
  RSA720838  Herniaria hirsuta subsp. cinerea Barbara Ertter, Lisa Schultheis 1995-4-27 14013 Contra Costa Lime ridge open space NW of Mt. Diablo in Walnut Creek; extension of Valley View road. 152 Comment
  JEPS29512  Hesperevax caulescens M. K. Curran May 1886 Contra Costa Antioch Comment
  JEPS116939  Hesperevax caulescens David Gowen 2008-4-21 868 Contra Costa South of Antioch, in Contra Loma Regional Park off Frederickson Lane. North, to northwest facing slope just NW of parking area for Black Diamond Mines Regional Preserve. Comment
  UC691822  Hesperevax sparsiflora var. sparsiflora Mary L. Bowerman 1931-4-25 753 Contra Costa 2 mi by road from west entrance Mount Diablo Comment
  CDA8374  Hesperocnide tenella D. G. Kelch, A. G. Murdock 2003-3-18 3 .334 Contra Costa Carquinez Strait; Canada de Cierbo. Comment
Read comments
Oct 13 2009
  CAS-BOT-BC167426  Hesperolinon breweri A. D. E. Elmer 1903-7-1 4545 Contra Costa Mount Diablo Comment
  CAS-BOT-BC167438  Hesperolinon breweri Mrs. Ernest Meiere 1916-6-1 s.n. Contra Costa Mt. Diablo Comment
  RSA0031306  Hesperolinon breweri Barbara Ertter 2000-5-14 17000 Contra Costa Donner Canyon on north side of Mount Diablo. 335 Comment
  RSA135385  Hesperolinon breweri Volney Rattan 1886-06 s.n. Contra Costa Mount Diablo Comment
  UC1212211  Hesperolinon breweri Helen K. Sharsmith 1947-6-2 3947 Contra Costa 0.6 mi from summit of Clayton-Tassajaro-Livermore road (at headwaters of creek); Mount Diablo, Marsh Creek 304 Comment
  UC692694  Hesperolinon breweri Mary L. Bowerman 1935-6-15 3137 Contra Costa Eagle Point Ridge w 2632; Mount Diablo 762 Comment
  JEPS122859  Hesperolinon californicum Adam C. Schneider with C. Matt Guilliams 2014-5-29 444 Contra Costa Alongside Blackhawk Ridge Trail, south of its divergence from Knobcone Pine Trail. Comment
  UC692665  Hesperolinon californicum Mary L. Bowerman 1933-6-14 2279 Contra Costa Inner Black Hills w 1970; Mount Diablo Comment
  UC187375  Hesperomecon linearis C. F. Baker 1903-4-25 2802 Contra Costa Antioch Comment
  UC725833  Hesperomecon linearis A. A. Heller 1908-4-16 8890 Contra Costa East of Antioch 22 Comment
  CAS-BOT-BC310281  Heterotheca grandiflora Walter Knight; Joanne Dean 1978-8-14 3113 Contra Costa Browns Island Comment
  UC2027745  Heterotheca grandiflora Barbara Ertter 1997-1-5 15435 Contra Costa Ygnacio Valley Road crossing Lime Ridge on northwest side of Mount Diablo. Comment
  UC87407  Heterotheca sessiliflora subsp. echioides Mrs. K. Brandegee 1883-7-1 Contra Costa Antioch Comment
  CAS-BOT-BC26197  Heterotheca sessiliflora var. bolanderioides J. C. Semple; B. Suripto; T. Ahmed 1990-8-16 9339 Contra Costa Charles Tilden Reg. Park, Vollmer Peak Comment
  CAS-BOT-BC424185  Heuchera micrantha var. hartwegii Paul F. Covel 1936-4-19 231 Contra Costa Las Trampas Canyon 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
  UC1192275  Hibiscus lasiocarpos Malcolm A. Nobs 1948-9-23 682 Contra Costa 7 mi. s. Kingston (Rock Slough); Rock Slough Comment
  JEPS100013  Hirschfeldia incana G. Smick 2003-5-30 GAS 208 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC325840  Holocarpha heermannii A. D. E. Elmer 1903-7-1 4613 Contra Costa Mount Diablo Comment
  CDA7977  Holocarpha heermannii D. G. Kelch, A. G. Murdock 2004-9-2 4 .329 Contra Costa Carquinez Strait Region; McEwen Road from Port of Costa - I-4 near summit of road. Comment
  UC1332423  Holocarpha heermannii P. B. Dickey 1932-9-14 164 Contra Costa Walnut Creek Comment
  CAS-BOT-BC316050  Holocarpha heermannii Lewis S. Rose 1933-10-22 33387 Contra Costa Wildcat Canyon Comment
  CAS-BOT-BC325847  Holocarpha heermannii Walter Knight; Harry Reeves 1979-8-25 3403 Contra Costa Contra Loma Regonal Park near Antioch 22 Comment
  CDA17961  Holocarpha heermannii R. M. Case 1999-9-9 PDR 004913 Contra Costa Marsh Creek Rd., 2 mi. E of Clayton. 0 Comment
  RSA136762  Holocarpha heermannii J. T. Howell 1955-8-24 30901 Contra Costa Near Diablo County Club, south base of Mt. Diablo. Comment
  RSA692602  Holocarpha heermannii Barbara Ertter 1990-9-10 9641 Contra Costa Briones Regional Park, Briones Hills S of Martinez, abundant on open grassy slopes throughout park, forming large yellow patches. Comment
  SJSU7097  Holocarpha macradenia D. J. Powers 1974-10-6 1001 A Contra Costa 100-300' E of Interstate Hwy 80 & 100-300 yards S of Appian Way, Pinole Comment
  UC1428043  Holocarpha macradenia David J. Powers 1974-10-6 1001 Contra Costa 100-300 ft e Hwy 80 (100-300 yd s Appian Way); Pinole Comment
  UC897734  Holocarpha obconica Lewis S. Rose 1938-10-28 38309 Contra Costa 8 mi w Byron; Marsh Creek 60 Comment
  CAS-BOT-BC320247  Holocarpha obconica John Thomas Howell 1930-9-28 5500 Contra Costa 6.3 miles from Byron on Marsh Creek Road Comment
  CAS-BOT-BC320251  Holocarpha obconica H. M. Hall 1930-9-24 12846 Contra Costa Vasco Road at Junction 4 miles west of Byron Comment
  CAS-BOT-BC320256  Holocarpha obconica David D. Keck 1933-10-27 2565 Contra Costa Kellogg Creek, 11 mi. from U.S. 48 on Vasco Road Comment
  CAS-BOT-BC320327  Holocarpha virgata David D. Keck 1933-10-27 2568 Contra Costa 1.6 mi. W. of Byron, 1.4 mi. from junction with Vasco Road Comment
  CAS-BOT-BC324617  Holocarpha virgata R. F. Hoover 1965-9-24 9648 Contra Costa Foothills west of Byron east of Kellogg Creek Comment
  UC1357613  Holocarpha virgata subsp. virgata R. F. Hoover 1965-9-24 9648 Contra Costa foothills w, e of Kellogg Creek Byron Comment
  OBI16043  Holocarpha virgata subsp. virgata Robert F. Hoover 1969-8-29 11566 Contra Costa Raymond rd and Ames St, Livermore Valley Comment
  POM299471  Holocarpha virgata subsp. virgata L. S. Rose 1941-10-16 41467 Contra Costa 2 miles W of Byron. 33 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
  RSA449754  Holodiscus discolor Thekla Mohr 1917-07 3255 Contra Costa Mount Diablo Comment
  UC1127988  Holodiscus discolor R. C. Wilson 1935-3-19 141 Contra Costa 1 mi se of Wall Point (Quadrangle Mount Diablo); Quadrangle Mount Diablo 426 Comment
  UC691112  Holodiscus discolor Mary L. Bowerman 1930-6-26 376 b Contra Costa Clayton-Livermore Road s of Riggs Canyon Road (Mount Diablo); , Clayton-Livermore Road Comment
  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
  RSA0016873  Hordeum brachyantherum H. de Forest 1930-5-7 s.n. Contra Costa Road near Morage. Comment
  POM181460  Hordeum depressum I. L. Wiggins 1900-4-7 4569 Contra Costa 2 mi. east of Mountain House on road to Byron. Comment
  UCD85625  Hordeum depressum P. B. Kennedy 1929-4-24 s.n. Contra Costa Corner of Franklin Canyon Road near Concord, near Soldiers Monument. Comment
  UC55038  Hordeum marinum subsp. gussoneanum Jos. Burtt Davy 1900-6-7 6657 Contra Costa near Pacheco Comment
  UC1950125  Hordeum marinum subsp. gussoneanum Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8121 Contra Costa alkali sink W and adjacent to Clifton Court Forebay, ca 15 airmiles SW of Stockton Comment
  POM205088  Hordeum murinum subsp. glaucum Jos Burtt Davy 1898-05 1730 Contra Costa Danville Comment
  UCD86141  Hordeum murinum subsp. glaucum Beecher Crampton 1956-5-14 3375 Contra Costa 5 miles south of Antioch. At head of Horse Valley. Comment
Read comments
Aug 17 2011
  CDA29160  Hordeum murinum subsp. leporinum D. G. Kelch 2006-5-7 6 .145 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  UC606740  Hordeum murinum subsp. leporinum Edward Lee 1936-4-19 1962 Contra Costa ne corner island (Red Rock, San Francisco Bay); San Francisco Bay, Red Rock, ne corner island Comment
  UC691094  Horkelia californica subsp. dissita Mary L. Bowerman 1932-11-25 1666 Contra Costa Mount Diablo, Silver Spring Comment
  UCD106066  Hosackia crassifolia P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  JEPS96251  Hydrocotyle verticillata Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10863 Contra Costa just w. Antioch marina (along levee at water's edge, accessed from marina, Dow Wetlands Preserve); Dow Wetlands Preserve Comment
  CAS-BOT-BC401301  Hypericum scouleri L. R. Abrams 1910-10-8 4347 Contra Costa Mt Diablo 914 Comment
  JEPS100182  Hypochaeris glabra G. Smick 2003-3-27 GAS 100 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691452  Hypochaeris glabra Mary L. Bowerman 1931-4-11 691 Contra Costa Pine Canyon 121 Comment
  CDA7492  Hypochaeris radicata Goodwin, M. K. Bellue 1932-5-6 Contra Costa 0 Comment
  UC1304178  Iris douglasiana Leo Brewer 1965-5-4 Contra Costa ridge w Siesta Valley (w-facing side of ridge, exposed to fog from Golden Gate, on county line between Contra Costa and Alameda counties) 441 Comment
  UC2028408  Iris pseudacorus Barbara Ertter with Richard K. Brummitt 1998-5-16 16096 Contra Costa Antioch Marina, edge of brackish marsh Comment
  UC2070455  Iris pseudacorus Barbara Ertter with Dorothy Frantz 2001-5-10 17639 Contra Costa Diablo Foothill Regional Park, Pine Creek just south of Castle Rock Recreation Area. Comment
  CAS-BOT-BC324752  Iva axillaris Evelina Cannon 1896-5-22 s.n. Contra Costa Giant Station Comment
  CAS-BOT-BC324753  Iva axillaris Morris Halperin 1930-5-20 s.n. Contra Costa Hoffman Ranch, Brentwood 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
  JEPS68931  Iva axillaris subsp. robustior Edward Lee 1934-9-30 1227 Contra Costa Moraga; railroad track site just se Comment
  JEPS111674  Jaumea carnosa D. G. Kelch 2003-8-13 03 .99 Contra Costa Martinez Marsh 0 Comment
  UC613042  Jaumea carnosa C. W. Sharsmith 1933-9-15 476 Contra Costa saline marshlands near Carquinez Straits; San Pablo Bay Comment
  CAS-BOT-BC101879  Juglans californica J. W. Congdon 1894-10-16 s.n. Contra Costa Ft. Mt. Diablo Comment
  JEPS46455  Juglans californica var. hindsii W. L. Jepson 1908-8-16 3087 Contra Costa Walnut Creek Comment
  JEPS58697  Juglans californica var. hindsii W. L. Jepson 1909-4-30 3114 Contra Costa in the sharp gulch upper Walnut Creek, Burton Ranch Comment
  CAS-BOT-BC102304  Juglans hindsii Lewis S. Rose 1936-4-24 36140 Contra Costa Marsh Creek, 5 mi. E. of Clayton 60 Comment
  UCD110262  Juglans hindsii Rimo Bacigalupi 1951-4-3 3253 Contra Costa Along Trampas Creek, 1 1/4 mi. n.e. of St. Mary's College. 167 Comment
  JEPS127666  Juncus ambiguus Barbara Ertter with David Gowen and Michael Park 2017-5-2 22810 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  RSA0027709  Juncus articulatus Barbara Ertter 1996-9-19 15300 Contra Costa Antioch Marina, edge of bay in Dow Marsh lands. Comment
  JEPS99492  Juncus bufonius var. bufonius Mary Bowerman 1995-6-4 Contra Costa Mount Diablo, North Gate Rd. Comment
  JEPS67091  Juncus bufonius var. occidentalis J. Burtt Davy 1895-4-7 948 Contra Costa Antioch Comment
  CDA39196  Juncus effusus var. pacificus H. R. Van Brocklin 1962-5-21 s.n. Contra Costa H. Van Brocklin prop., 1895 Almond Ave., Walnut Creek. 0 Comment
  JEPS113079  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
  UC1601775  Juncus occidentalis Jos. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  RSA722106  Juncus occidentalis Barbara Ertter, Gary Schoolcraft, Tony Morosco 1996-4-6 14566 Contra Costa West end Oyster Point road in Mt. Diablo State Park. Comment
  UC1795655  Juncus occidentalis Barbara Ertter, Gary Schoolcraft, Tony Morosco 1996-4-6 14566 Contra Costa West end Oyster Point Rd in Mt Diablo State Park, moist meadow just east of junction. Comment
  UC2028532  Juncus occidentalis Barbara Ertter 1998-5-3 16035 Contra Costa Above SW of fork of Pine Creek at southwest base of Mount Diablo. Comment
  UCD141649  Juncus occidentalis M. Wiesendanger 1926-5-1 1468 Contra Costa near Richmond. Comment
  UC691938  Juncus patens Mary L. Bowerman 1932-11-26 1674 Contra Costa between Corral Spring and Boulevard Spring; Mount Diablo, Patens Springs Comment
  UCD35162  Juncus patens Beecher Crampton 1950-7-29 626 Contra Costa 1 mile north of Richmond. Comment
  SEINET6174583  Juncus phaeocephalus L. Koch 1940-6-5 1004 b Contra Costa Two milees south of San Rafael Ferry Dock Comment
  JEPS112448  Juncus phaeocephalus var. paniculatus A. G. Murdock 2004-5-28 276 Contra Costa Refugio Valley 120 Comment
  UC2046369  Juncus usitatus Barbara Ertter 2015-10-9 22456 Contra Costa N end of walkway on east edge of Dow Marsh west of Antioch marina on San Joaquin River Delta. Comment
  UC521770  Juncus xiphioides Joseph Andorfer Ewan 1933-10-15 8019 Contra Costa sw slope Mt. Diablo Comment
  UC691982  Juncus xiphioides Mary L. Bowerman 1932-8-27 1523 Contra Costa s of Turtle Rock; Mount Diablo 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
  SEINET191616  Juniperus californica L. S. Rose 1941-3-22 41052 Contra Costa Mt Diablo 914 Comment
  UC78  Juniperus californica Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  UC81  Juniperus californica A. Kellogg 78 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC235874  Keckiella corymbosa Lewis S. Rose 1932-6-24 32353 Contra Costa Mt. Diablo 1173 Comment
  JEPS70570  Koeleria macrantha W. L. Jepson 1918-6-5 7601 Contra Costa Donner Canyon Mt. Diablo; vicinity of San Francisco Bay, Mt. Diablo 533 Comment
  UC691220  Koeleria macrantha Mary L. Bowerman 1934-6-9 2549 Contra Costa Fossil Ridge s of 1700 foot point Mount Diablo (Mount Diablo); , Fossil Ridge Comment
  UCD85733  Koeleria macrantha Beecher Crampton 1956-5-14 3394 Contra Costa 3.7 miles southeast of Clayton, on Marsh Creek Road. Comment
  CAS-BOT-BC499188  Kopsiopsis strobilacea W. W. Carruth no date on label s.n. Contra Costa Moraga Valley Comment
  JEPS99525  Lactuca saligna Mary L. Bowerman 1975-9-14 Contra Costa Mount Diablo. By hillside near Chase Pond. Comment
  CAS-BOT-BC340538  Lactuca serriola Walter Knight; Joanne Dean 1978-8-14 3165 Contra Costa Browns Island Comment
  UC710613  Lactuca virosa John Thomas Howell 1943-8-22 19310 Contra Costa San Leandro Creek Canyon 243 Comment
  CAS-BOT-BC340699  Lactuca virosa John Thomas Howell 1943-8-22 19310 Contra Costa Near head of San Leandro Creek Canyon 243 Comment
  CAS-BOT-BC341473  Lagophylla ramosissima James I. McMurphy 1909-5-21 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC337978  Lasthenia californica Volney Rattan 1879-1-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC337981  Lasthenia californica H. M. Hall 1901-4-5 1749 Contra Costa San Francisco Bay. Mt Diablo Comment
  UC1795667  Lasthenia californica Barbara Ertter, Mary Bowerman et al. 1995-5-7 14060 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, small serpentine patch at road junction Comment
  JEPS124445  Lasthenia californica subsp. californica Daniel Slakey with Randy Morgan 2015-4-3 90 Contra Costa Southwest corner at the intersection/curve of Raymond Rd. and Ames St. Comment
  JEPS6970  Lasthenia californica subsp. californica Peter Kamb 1950-3-18 1635 Contra Costa saddle between North Peak and South Peak; Mount Diablo 883 Comment
  UC1614099  Lasthenia californica subsp. californica Charles M. Belshaw 1935-6-24 782 Contra Costa 0.5 mi. e. Grizzly Peak (n. face Bald Peak); Bald Peak 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
  UC33073  Lasthenia conjugens Edw. L. Greene 1887-4-17 Contra Costa Antioch Comment
  UC1314951  Lasthenia fremontii R. F. Hoover 1967-4-28 10512 Contra Costa Byron Hot Springs Comment
  UCD133741  Lasthenia fremontii Ira L. Wiggins 1930-4-17 4579 Contra Costa 1/4 mile south of Byron. Comment
  CAS-BOT-BC352927  Lasthenia glaberrima A. D. E. Elmer 1903-5-1 4321 Contra Costa Walnut Creek Comment
  JEPS116855  Lasthenia glaberrima David Gowen 2007-4-16 675 Contra Costa Briones Regional Park in the northern Maricich Lagoon. Comment
  CAS-BOT-BC352772  Lasthenia glabrata subsp. glabrata Brandegee No date on label s.n. Contra Costa Antioch Comment
  CAS-BOT-BC352773  Lasthenia glabrata subsp. glabrata Mary L. Bowerman 1933-4-15 1865 Contra Costa Canyon S of Arroyo del Cerro, 1400 feet? below spring Comment
  UC1301065  Lasthenia gracilis Helen K. Sharsmith 1963-4-7 5290 Contra Costa e side Kirker Pass Road (w of Antioch); San Francisco Bay Region 152 Comment
  UC30445  Lasthenia gracilis Harley P. Chandler 1901-4-5 995 Contra Costa Mt. Diablo Comment
  UC1543176  Lasthenia minor Donald G. Nelson 1937-3-30 470 Contra Costa s of Byron (railroad tracks, paralleling the highway, on road to Tracy) Comment
  CAS-BOT-BC370829  Lasthenia platycarpha Alice Eastwood 1914-3-14 3823 Contra Costa Byron Springs Comment
  JEPS107088  Lathyrus latifolius Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14671 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay, northwest corner of area. Comment
  CDA23105  Lathyrus vestitus D. G. Kelch, D. A. Weinstein 2008-4-25 8 .085 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
  UC15364  Lathyrus vestitus Ivar Tidestrom 1893-4-15 Contra Costa Sheep Island Comment
  JEPS55376  Lathyrus vestitus var. vestitus W. L. Jepson 1925-4-26 10692 Contra Costa Black Hills Mt. Diablo Comment
  UC692312  Lathyrus vestitus var. vestitus Mary L. Bowerman 1933-6-3 2239 Contra Costa Ransom Point ridge Mount Diablo Comment
  UC2061511  Laurus nobilis Dean G. Kelch 2016-4-30 16 .102 Contra Costa Carquinez Strait: Selby, west of Crockett. On west side of canyon near old dwelling foundation. Comment
  RSA720810  Lavatera assurgentiflora Barbara Ertter 1994-6-6 12822 Contra Costa Point Isabel in south Richmond Comment
  SEINET7085230  Lavatera olbia Steven R. Hill 2010-7-19 38531 Contra Costa Residence of Kristin Yanker-Hansen, 569 Contada Circle, Danville [94526]. Coordinate Datum: WGS84/NAD83. 122 Comment
  UC89156  Layia chrysanthemoides C. F. Baker 1903-4-27 2903 Contra Costa Byron Comment
  RSA517747  Layia chrysanthemoides Donald G. Nelson 1937-3-30 475 Contra Costa Railroad tracks paralleling the highway south of Byron on road to Tracy Comment
  UC697168  Layia gaillardioides Mary L. Bowerman 1935-4-17 2847 Contra Costa west road, = North Rd., 2 mi from entrance Mount Diablo 335 Comment
  UC912575  Layia glandulosa Herbert L. Mason 1929-3-31 5155 Contra Costa at Antioch (along Sacramento River); along Sacramento River Comment
  POM361662  Layia glandulosa H. de Forest 1930-4-6 s.n. Contra Costa SE of Mortoville, Small 'coal mine' ravine. Comment
  UCD133904  Layia glandulosa Annetta M. Carter 1933-4-23 300 Contra Costa above the San Joaquin River, between Antioch Bridge and Antioch. Comment
  RSA394722  Layia glandulosa subsp. glandulosa Annetta Carter 1933-4-23 300 Contra Costa Above the San Joaquin River, between Antioch Bridge and Antioch. Comment
  UC1606413  Layia hieracioides Barbara Ertter, Chris Thayer 1993-5-7 11710 Contra Costa ca 1/2 mi n Volmer (=Bald) Peak (in East Bay Municipal Utilities District land e of Tilden Park, just below ridge on ne-facing slope) 457 Comment
  CAS-BOT-BC370664  Layia platyglossa Alice Eastwood 1921-4-18 10279 Contra Costa Antioch Comment
  SEINET3147924  Layia platyglossa L. S. Rose 1933-4-17 33093 Contra Costa Antioch Comment
  UC30670  Layia platyglossa Edw. L. Greene 1892-6-20 Contra Costa Mount Diablo Comment
  UC691490  Layia platyglossa Mary L. Bowerman 1931-5-7 811 Contra Costa grassy area near saddle on side North Peak; Mount Diablo, Meridian-North Peak saddle Comment
  CAS-BOT-BC377905  Layia platyglossa Paul F. Covel 1938-5-8 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC88702  Lepidium acutidens Alice Eastwood 1914-3-14 3771 Contra Costa Byron Springs. Comment
  CDA43401  Lepidium acutidens Michael Pitcairn & Dean Kelch 2015-3-6 s.n. Contra Costa South end of the Byron Airport. Comment
  CAS-BOT-BC88680  Lepidium acutidens Lewis S. Rose 1956-3-19 56003 Contra Costa 2 miles southeast of Byron. 7 Comment
  CAS-BOT-BC88706  Lepidium acutidens Lewis S. Rose 1933-3-29 33041 Contra Costa Nortonville. Comment
  CDA37473  Lepidium campestre V. Guise 2012-5-1 PDR# 1649640 Contra Costa Near Old School Road, Tassajara; east of Danville. 0 Comment
  UCD144312  Lepidium chalepense G. F. Hrusa; D. Crowe 1998-5-8 14374 Contra Costa Sacramento-San Joaquin River Delta. On Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. 2 Comment
  CHSC67911  Lepidium dictyotum var. acutidens James D. Jokerst 1989-3-29 3069 Contra Costa 0.25 mi S of Byron Hot Springs NE of Livermore. Comment
  RSA788058  Lepidium dictyotum var. acutidens L. S. Rose 1949-3-24 49012 Contra Costa 4 mi south of Byren 8 Comment
  CHSC69638  Lepidium dictyotum var. dictyotum James D. Jokerst; Barbara Ertter, Dave Magney 1989-4-5 3081 Contra Costa West and adjacent to Clifton Court Forebay, E of Bryon Hwy. and Italian Slough. 3 Comment
  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
  CAS-BOT-BC89766  Lepidium latipes Barrett Anderson 1987-4-29 3483 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD. 125 Comment
  UC10641  Lepidium latipes W. H. Brewer 1862-4-24 985 Contra Costa Camp 68 Martinez 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-BC89891  Lepidium nitidum Alice Eastwood 1914-3-14 s.n. Contra Costa Byron Springs. Comment
  CAS-BOT-BC89893  Lepidium nitidum Alice Eastwood 1921-4-18 10259 Contra Costa Antioch. Comment
  CAS-BOT-BC89897  Lepidium nitidum Lewis S. Rose 1933-3-29 33045 Contra Costa Pittsburg. Comment
  JEPS104705  Lepidium nitidum John L. Morrison 1937-3-6 1969 Contra Costa Bear Creek Canyon; Black Hills; San Pablo watershed area Comment
  SD131818  Lepidium nitidum Barbara Ertter, Jokerst and Magney 1989-4-5 8123 Contra Costa Alkali sink west and adjacent to Clifton Court Forebay, ca. 15 air miles southwest of Stockton Comment
  POM204090  Lepidium oxycarpum L. S. Rose 1933-3-29 33041 Contra Costa Nortonville. Comment
  UC2012993  Lepidium oxycarpum Barbara Ertter with Dale Sanders, Dan Norris 1994-3-26 12337 Contra Costa Peyton Hill east of I-680 east of Martinez, south of Waterfront Road, west foot of hill near edge of marsh. Comment
  UC10601  Lepidium strictum F. T. Bioletti 1892-1 Contra Costa Byron Comment
  UC2027727  Leptosiphon bicolor Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15507 a Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. 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
  CHSC40750  Leptosiphon grandiflorus J. G. Lemmon 1938-6-14 12094 Contra Costa Mount Diablo. Comment
  RSA114063  Leptosiphon liniflorus H. L. Mason 1952-4-14 14265 Contra Costa 3.5 miles S of Byron Comment
  UC2027920  Leptosiphon pygmaeus subsp. continentalis Barbara Ertter, Dan Norris 2001-4-8 17582 Contra Costa Lime Ridge Open Space east of Walnut Creek, high part of main ridge. Comment
  CAS-BOT-BC324113  Lessingia glandulifera var. glandulifera James McMurphy 1908-10-18 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC324112  Lessingia glandulifera var. glandulifera Walter Knight 1965-9-7 1171 Contra Costa Antioch Sand Dunes Comment
  JEPS43213  Lewisia rediviva W. L. Jepson 1907-4-26 2640 Contra Costa Mt. Diablo Comment
  SEINET10925827  Leymus X multiflorus Edward Lee 1935-8-13 Lee 1616 Contra Costa With stolons. Open grassy roadside. Vaca Canyon. Comment
  CDA39657  Leymus X multiflorus Slate 2013-5-22 PDR# 1641699 Contra Costa Concord; Walnut Creek channel upstream of Willow Pass Rd. 0 Comment
  UCD92459  Leymus X multiflorus G. Thomas Robbins; John Weiler 1959-5-23 4026 Contra Costa West side of Brooks Island, San Francisco Bay, Richmond. 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
  UCD65585  Leymus triticoides R. Tofsrud 1947-6-12 176 Contra Costa W of Byron about 4 miles in the 'Arroyo de la Canada. Comment
  CAS-BOT-BC272217  Leymus triticoides Walter Knight 1965-9-7 1174 Contra Costa Along San Joaquin River bank, Antioch dunes Comment
  JEPS100066  Ligustrum ovalifolium G. Smick 2003-5-30 GAS 196 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC814388  Lilaea scilloides Lewis S. Rose 1940-4-30 40257 Contra Costa 6 mi s Antioch 30 Comment
  CAS-BOT-BC211109  Lilaeopsis masonii Walter Knight; Irja Knight 1977-6-18 s.n. Contra Costa Antioch Sand Dunes, Little Corral site Comment
  UC1101455  Lilaeopsis masonii Herbert L. Mason April, 1954 Contra Costa n. end Antioch Bridge Comment
  UC1818927  Lilaeopsis masonii Barbara Ertter, Lincoln Constance 1995-6-16 14261 Contra Costa East edge Dow Marsh on west side Antioch Marina, south side San Joaquin River in Delta area, mud on riprap. Comment
  UC692008  Lilium pardalinum Mary L. Bowerman 1935-3-16 2741 Contra Costa e fork Arroyo del Cerro (on canyon floor immediately above spring); Mount Diablo 289 Comment
  OBI12566  Limnanthes douglasii subsp. rosea Robert F. Hoover 1936-3-19 809 Contra Costa Byron Hot Springs Comment
  CDA33337  Limnobium laevigatum Robin Breckenridge 2010-10-1 PDR# 5059100 Contra Costa North edge of Bradford Island. 0 Comment
  JEPS20265  Limonium californicum W. L. Jepson 1922-7-9 9730 Contra Costa Richmond Comment
  CDA39643  Limonium sinuatum D. G. Kelch 2011-10-23 11 .840B Contra Costa Carquinez Strait Region; Martinez Waterfront Park. Comment
  JEPS99519  Linanthus androsaceus Mary Bowerman 1977-5-29 Contra Costa Mount Diablo. Russellmann Park. Comment
  UC367216  Linanthus ciliatus J. G. Lemmon Contra Costa Mount Diablo Comment
  UC691641  Linanthus ciliatus Mary L. Bowerman 1935-5-22 3042 Contra Costa Eagle Point ridge Mount Diablo (canyon at the n end which heads into saddle w of Twin Peaks) 304 Comment
  UC106751  Linanthus liniflorus E. L. Greene Contra Costa Byron Springs Comment
  UC615173  Linanthus liniflorus Beryl O. Schreiber 1932-3-27 155 Contra Costa Byron Hot Springs Comment
  CAS-BOT-BC430613  Lithophragma affine Lewis S. Rose 1933-4-17 33099 Contra Costa Walnut Creek Comment
  JEPS112264  Lithophragma affine D. G. Kelch 2004-3-12 04 .024 Contra Costa Pinole Valley; hillside and canyon above Wright Road. Off of Pinole Valley Road. Comment
  RSA0068477  Lithophragma affine Katie Gallagher, Nick Jensen 2014-4-26 201 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  SEINET6032167  Lithophragma affine H. E. Hodge 1956-4-7 23 Contra Costa 2 miles north of Orinda 61 Comment
  RSA8363  Lithophragma affine subsp. affine L. S. Rose 1933-4-17 33099 Contra Costa Walnut Creek. Comment
  UC692422  Lithophragma heterophyllum Mary L. Bowerman 1933-4-9 1840 Contra Costa Donner Canyon, W fork Mount Diablo (by trail) 274 Comment
  UC2028077  Lithophragma heterophyllum Barbara Ertter, Tony Morosco 1998-4-12 15997 Contra Costa Base of Mount Olympia on north side of Mount Diablo, talus above quarry NE of Olympia Trail. 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
  UC34597  Logfia filaginoides J. P. Tracy 1900-3-24 618 A Contra Costa Point Richmond San Francisco Bay region, Point Richmond 15 Comment
  UC912409  Logfia filaginoides Herbert L. Mason 1928-4-29 4426 Contra Costa Mount Diablo Comment
  CAS-BOT-BC342346  Logfia gallica H. L. Mason 1928-4-26 4386 Contra Costa Berkeley-Oakland Hills Comment
  JEPS75535  Lolium multiflorum P. F. Yorks 1976-5-31 508 Contra Costa 1.3 to 1.9 km s of Bear Creek Road on Hampton Road in Hampton Road Natural Reserve (n of Briones Reservoir); , n of Briones Reservoir 180 Comment
  JEPS97558  Lolium multiflorum R. D. Stone 1980-7-13 278 Contra Costa 'Huckleberry Trail Oakland Hills, near Alameda-Contra Costa county line (NE of intersection of Skyline Blvd. and Snake Rd) Comment
  JEPS99986  Lolium multiflorum S. O'Neil 2003-3-11 SEO 17 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC283395  Lolium multiflorum Mary L. Bowerman 1933-5-25 2199 Contra Costa Mount Diablo. Alamo Canyon: E-facing slope above Wilson's barn Comment
  CAS-BOT-BC283396  Lolium multiflorum R. E. Frenkel 1963-5-22 206 Contra Costa On Morgan Territory Road, 0.2 mile S of summit 637 Comment
  SEINET2074966  Lolium multiflorum S. J. Gibbs 1970-3-27 Contra Costa Oak View Terrace, 3 mi. N.E. of P.O. 121 Comment
  SEINET2080859  Lolium multiflorum D. Walter 1985-4-29 10183 Contra Costa Dougherty Road 4 miles N of Old Ranch Road (N of Dublin, E of San Ramon). 121 Comment
  POM301851  Lolium perenne subsp. multiflorum Mary L. Bowerman 1938-5-25 3630 Contra Costa Arroyo del Cerro, by North Road 110 Comment
  UC691261  Lolium temulentum Mary L. Bowerman 1932-4-27 1367 Contra Costa Oyster Ridge, s face Mount Diablo (w-facing slope of ridge w of Riggs Canyon); , Oyster Ridge, s face Comment
  CAS-BOT-BC271056  Lolium temulentum Mary L. Bowerman 1933-5-17 2096 Contra Costa Branch of Curry Canyon due south of Olafsons barn, Mount Diablo Comment
  POM132574  Lomatium caruifolium C. F. Baker 1908-4-27 2800 Contra Costa [Unspecified] Comment
  UC659027  Lomatium caruifolium var. caruifolium Mildred E. Mathias 1937-4-11 1163 Contra Costa 3 mi. s. Byron Comment
  UC659029  Lomatium caruifolium var. caruifolium Mildred E. Mathias 1937-4-11 1164 Contra Costa 3 mi S of Byron (along highway) Comment
  JEPS100134  Lomatium utriculatum G. Smick 2003-3-25 GAS 116 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111595  Lomatium utriculatum A. G. Murdock 2004-3-19 235 Contra Costa McEwen Road 150 Comment
  UC691422  Lomatium utriculatum Mary L. Bowerman 1935-5-30 3096 Contra Costa between the two ridges which converge at Twin Peaks (Eagle Point ridge) Mount Diablo 350 Comment
  CAS-BOT-BC240419  Lonicera hispidula Alice Eastwood 1915-6-21 4732 Contra Costa San Leandro Comment
  UC2031434  Lonicera hispidula Barbara Ertter 1991-6-1 10070 Contra Costa Las Trampas Regional Wilderness in hills W of Danville Comment
  RSA455187  Lonicera hispidula var. vacillans Thekla Mohr 1917-07 s.n. Contra Costa Mount Diablo Comment
  CAS-BOT-BC240661  Lonicera interrupta H. E. McMinn 1922-10-1 91 b Contra Costa Mitchelle Canon [Canyon], Mt. Diablo Comment
  CAS-BOT-BC241458  Lonicera involucrata var. ledebourii Ira L. Wiggins 1930-4-18 4594 Contra Costa Levee, east end of Jersey Island Comment
  JEPS12852  Lonicera subspicata var. denudata W. L. Jepson 1920-9-6 9080 Contra Costa Donner Canyon, on ridge towards high spring under saddle Mt. Diablo Comment
  UC691483  Lonicera subspicata var. denudata Mary L. Bowerman 1932-10-16 1634 Contra Costa ridge e Median Ridge; Mount Diablo, Donner Canyon basin 487 Comment
  UC15548  Lotus crassifolius var. crassifolius F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  UC692528  Lotus micranthus Mary L. Bowerman 1938-6-2 3655 Contra Costa Dan Cook Canyon Mount Diablo 487 Comment
  JEPS25107  Lotus scoparius G. Thomas Robbins 1959-4-12 3983 Contra Costa about 0.5 mi sw junction of Hoffmann Blvd. and S. 25th St. 6 Comment
  JEPS55877  Lotus strigosus Chesnut and Drew 1890-4-18 Contra Costa Antioch Comment
  UC764469  Lotus strigosus R. F. Hoover 1935-3-10 303 Contra Costa Antioch Comment
  SEINET3560064 Image available Lotus subpinnatus Rimo Bacigalupi, L. R. Heckard 1965-5-11 9082 Contra Costa Brooks Island 30 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
  UC555420  Lotus wrangelianus H. L. Mason 1929-5-7 5263 Contra Costa Moraga Ridge Comment
  UC692266  Lotus wrangelianus Mary L. Bowerman 1932-4-27 1393 Contra Costa canyon w of Riggs Canyon (s-face of Oyster Ridge); Mount Diablo, Oyster Ridge 335 Comment
  RSA0026153  Ludwigia peploides subsp. montevidensis Barbara Ertter, Lincoln Constance 1995-6-16 14263 Contra Costa East edge Dow Marsh on west side Antioch Marina, south side San Joaquin River in Delta area. Comment
  JEPS111865  Lunaria annua D. G. Kelch 2004-5-9 04 .214 Contra Costa Crockett - Eckley Hills north of Bull Valley Staging Area 13 Comment
  UC1613952  Lupinus albicaulis Charles M. Belshaw 1935-6-24 1035 Contra Costa Sobrante Hills Comment
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Feb 6 2013
  JEPS64909  Lupinus albifrons W. L. Jepson 1931-4-5 15724 Contra Costa Oakley part of Antioch sand-dune formation, Oakley 18 Comment
  UC15783  Lupinus albifrons unknown 1038 Contra Costa Walnut Creek Comment
  UC400154  Lupinus albifrons Ynes Mexia 1929-4-21 2378 Contra Costa Moraga Valley Comment
  JEPS112355  Lupinus albifrons var. albifrons Dean G. Kelch and Andrew G. Murdock 2004-3-12 04 .019 Contra Costa Pinole Valley, County: Contra Costa; Hillside and canyon above Wright Road. Off of Pinole Valley Road. Contra Coasta County, CA. Comment
  CAS-BOT-BC201372  Lupinus albifrons var. albifrons Paul F. Covel 1938-6-26 s.n. Contra Costa Las Trampas Canyon - behind St. Mary's Comment
  CAS-BOT-BC201373  Lupinus albifrons var. albifrons Charles Piper Smith 1947-8-8 47709 Contra Costa Crow Creek Canyon Road - San Ramon Summit Comment
  RSA29244  Lupinus albifrons var. albifrons Joseph A. Ewan 1934-3-10 8645 Contra Costa 2 mi. below Orinda Road bridge, Wildcat Canyon. Comment
  UC1129460  Lupinus albifrons var. collinus H. S. Yates 1934-9-2 4033 Contra Costa 2 mi nw Orinda; Concord Quad., nw of Orinda 304 Comment
  UC201981  Lupinus arboreus Miss Harriet A. Walker 1911-7-2 2511 Contra Costa near Santa Fe Track Antioch (Antioch); , near Santa Fe Track Comment
  UC1999842  Lupinus arboreus Charles M. Belshaw 1935-5-30 946 Contra Costa Island route about 15 miles north of Antioch Bridge Comment
  JEPS112414  Lupinus bicolor Dean G. Kelch and Andrew G. Murdock 2005-4-15 05 .146 Contra Costa Rodeo Creek; county: Contra Costa; EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  UC1073382  Lupinus bicolor George B. Rossbach 1955-3-20 324 Contra Costa sw base Mt. Diablo; sw base Mt. Diablo Comment
  UC764122  Lupinus bicolor R. F. Hoover 1938-5-4 3343 Contra Costa peak e Tassajero Creek; peak e of Tassajero Creek Comment
  SEINET11268248  Lupinus bicolor Barbara Ertter 1998-4-4 15944 Contra Costa Northwest of Mount Diablo, SE of Indian Valley School.; 0 Comment
  SEINET3134686  Lupinus bicolor L. S. Rose 1942-4-23 42013 Contra Costa Walnut Creek Comment
  UC2028034  Lupinus bicolor Barbara Ertter 1998-4-4 15944 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, SE of Indian Valley School. Comment
  UCD107322  Lupinus bicolor L. S. Smith 1916-5-10 s.n. Contra Costa Grand View Terrace - m. Richmond. Comment
  UCD32372  Lupinus bicolor Beecher Crampton 1950-4-1 498 c Contra Costa 1 mile north of Richmond, near S.P. Railroad tracks. 15 Comment
  SEINET10903824  Lupinus bicolor subsp. pipersmithii Charles Piper Smith 1922-4-14 Smith 3482 Contra Costa Antioch - santa fe - east sanddunes. Comment
  NY16041  Lupinus bicolor subsp. tridentatus A. A. Heller 1928-4-15 14507 Contra Costa Near Brentwood Comment
  SEINET10970226  Lupinus bicolor subsp. tridentatus Charles Piper Smith 1922-4-15 Smith 3492 Contra Costa Antioch - Southern Pacific Railroad Depot - 0.5 mi W. Comment
  CAS-BOT-BC187856  Lupinus chamissonis John Thomas Howell 1932-9-17 10757 Contra Costa Clay Flats, San Pablo Avenue, Richmond Comment
  POM181434  Lupinus densiflorus var. aureus Ira L. Higgins 1930-4-17 4568 Contra Costa Hillsides near Mountain House, Altamont Pass. Comment
  RSA0026155  Lupinus formosus var. formosus Barbara Ertter, J. Travis Columbus 1990-6-10 9116 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill.; grassy hill SE of Alhambra Valley staging area. 152 Comment
  UCR274616  Lupinus latifolius Daisie Huang 2006-7-18 60718- 05 Contra Costa Pinehurst Road above Moraga Road 156 Comment
  UC1543065  Lupinus microcarpus var. densiflorus Donald G. Nelson 1937-4-24 515 Contra Costa Marsh Creek Road n Byron; Marsh Creek Road Comment
  UC692273  Lupinus microcarpus var. densiflorus Mary L. Bowerman 1930-6-10 293 Contra Costa near Mineral Spring Mount Diablo (Mount Diablo) 396 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
  UC155195  Lupinus microcarpus var. microcarpus Katharine Brandegee 1907-5-5 Contra Costa Antioch Comment
  UC201021  Lupinus microcarpus var. microcarpus Katharine Brandegee June 1918 Contra Costa Richmond Annex; El Dorado St. Comment
  UC201026  Lupinus microcarpus var. microcarpus Katharine Brandegee 1918-6-16 Contra Costa Richmond Annex Comment
  UC201030  Lupinus microcarpus var. microcarpus Katharine Brandegee July, 1918 Contra Costa El Dorado St. Richmond Annex (Richmond Annex); , El Dorado St. Comment
  RSA0027702  Lupinus microcarpus var. microcarpus Barbara Ertter, John Ginochio, Mary Bowerman 2001-5-8 17628 Contra Costa Northwest flank of Mount Diablo, upper Galindo Creek southwest of Mount Zion. Comment
  RSA0033776  Lupinus nanus Barbara Ertter, Richard K. Brummitt 1998-5-6 16093 Contra Costa Lower Donner Canyon on north base of Mount Diablo, Hetherington Trail upstream from Donner Cabin. Comment
  UCD109081  Lupinus nanus P. B. Kennedy 1916-5-11 31 Contra Costa Grand View Terrace; Richmond District. Comment
  UC2028120  Lupinus nanus Barbara Ertter with Richard K. Brummitt 1998-5-6 16089 Contra Costa Lower Donner Canyon Road on north base of Mount Diablo, ca 1/2 miles south of Donner cabin site. Comment
  UCD109076  Lupinus nanus P. B. Kennedy Date Unknown 1311 Contra Costa Grand View Terrace - Richmond District. Comment
  CHSC23154  Lupinus polycarpus Robert A. Schlising 1962-4-7 2149 Contra Costa Coastal Range. Roadside near Antioch Reservoir. Comment
  JEPS48958  Luzula macrantha Elsa Kraeger 1926-3-7 Contra Costa South slope Mount Diablo Comment
  UC2062431  Luzula macrantha Barbara Ertter with David Gowen 2013-4-9 21309 Contra Costa Mount Diablo State Park southeast of Walnut Creek, Sulfur Spring/Devils Slide Trail southeast of Curry Point. Comment
  CAS-BOT-BC441217  Luzula macrantha H. L. Mason 1917-3-19 59 Contra Costa Lake Temescal Comment
  CDA5756  Lycium chinense T. C. Fuller 1964-11-6 12810 Contra Costa Knightsen. 0 Comment
  OBI78277  Lythrum californicum D. G. Kelch 1996-10-17 s.n. Contra Costa CA Dept. Food & Ag CDA; Carquinez Strait: Pt. Edith Marsh 1 Comment
  JEPS112515  Lythrum hyssopifolia D. G. Kelch 2004-7-9 04 .302 Contra Costa McEwen Road. McEwen marsh. North of Cummings Skyway 130 Comment
  JEPS112520  Lythrum hyssopifolia D. G. Kelch 2003-6-22 03 .90 Contra Costa Rodeo - Lone Tree Point 2 Comment
  UC2027961  Lythrum hyssopifolia Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15665 Contra Costa Point Richmond, crest of road. Comment
  UC692635  Lythrum hyssopifolia Mary L. Bowerman 1932-11-19 1662 Contra Costa Mount Diablo, Stachys Spring, Mountain Springs Canyon, (below junction of pipes from numbers 3 and 4 club springs) Mountain Springs Canyon; Mount Diablo, Stachys Spring, Mountain Springs Canyon Comment
  UC697170  Madia elegans Mary L. Bowerman 1936-9-10 3542 Contra Costa Donner Canyon Mount Diablo (by streamlet) 335 Comment
  UC2028991  Madia elegans Barbara Ertter 2000-5-14 17001 Contra Costa Donner Canyon on north side of Mount Diablo, serpentinitic sites in general area of junction of Donner Canyon, Cardinet Oaks, and Meridian Ridge roads, edged by Arctostaphylos glauca et al. Comment
  UC2029031  Madia elegans Barbara Ertter 2002-8-24 18041 Contra Costa lower Perkins Canyon on NE base of Mount Diablo. Comment
  CDA33835  Madia elegans subsp. vernalis D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .103 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  JEPS111711  Madia exigua D. G. Kelch 2004-5-9 04 .205 Contra Costa Crockett - Edwards Canyon; Upper Edwards Canyon 160 Comment
  CAS-BOT-BC344327  Madia exigua John Thomas Howell 1931-5-12 6473 Contra Costa Nortonville Comment
  UC2028296  Madia exigua Barbara Ertter with Dan Norris 1998-6-18 16215 Contra Costa Rock City area on south side of Mount Diablo, trail to Artist Point. Comment
  CHSC39487  Madia gracilis Tyler Williams 1984-4-18 23 Contra Costa Mt. Diablo. On South Park Rd., ca. 20 yd nw of Bridal Nook Picnic Area, on e side of road in Mount Diablo State Park. 533 Comment
  POM267781  Madia gracilis subsp. gracilis D. D. Keck 1941-6-5 5309 Contra Costa Berkeley Hills, Fish Creek Road 1/4 mile W of E portal of Broadway Tunnel. 335 Comment
  CAS-BOT-BC324488  Madia radiata K. Brandegee 1908-4-9 50 Contra Costa Near Antioch Comment
  JEPS111681  Madia sativa D. G. Kelch 2003-8-13 03 .136 Contra Costa Pinole Creek 68 Comment
  JEPS75563  Madia sativa P. F. Yorks 1974-5-19 167 Contra Costa ca 1.0 km s Bear Creek Road (on Hampton Road in Hampton Road Natural Reserve) 180 Comment
  UC2029067  Maianthemum stellatum Barbara Ertter 2000-7-29 17437 Contra Costa Donner Basin on north side of Mount Diablo, Middle Trail below Falls Trail junction, at crossing of W Fork Donner Creek, with Berberis, shaded, surface water. Comment
  CHSC117387  Malacothamnus fasciculatus Barbara Ertter; Tony Morosco 1998-9-18 16417 Contra Costa West edge Lime Ridgde Open Space northwest of Mount Diablo, chaparral at base of hills. Comment
  JEPS26391  Malacothamnus fremontii Kittie L. Fenley 1931-5-3 Contra Costa Nortonville Comment
  UC1042342  Malacothamnus fremontii Lewis S. Rose 1954-6-29 54081 Contra Costa Nortonville Comment
  UC185544  Malacothamnus fremontii Katharine Brandegee May 1883 Contra Costa Base of Mt. Diablo Comment
  UC18798  Malacothamnus fremontii Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  POM301021  Malacothamnus hallii Mary L. Bowerman 1933-6-3 2223 Contra Costa 2 miles by road from North Gate Comment
  CAS-BOT-BC204089  Malacothamnus hallii Lewis S. Rose 1954-6-29 54082 Contra Costa Mt. Diablo 2 1/2 mi. n. of Turtle Rock 182 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
  UCD116361  Malacothamnus hallii Don C. Elfving 1964-4-26 62 Contra Costa North Gate Road, 3 miles from base of Mt. Diablo. Comment
  CAS-BOT-BC345269  Malacothrix californica Dr. A. Kellogg No date on label s.n. Contra Costa Antioch Comment
  CAS-BOT-BC345270  Malacothrix californica Kellogg No date on label s.n. 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
  JEPS36614  Malacothrix coulteri R. F. Hoover 1935-3-10 382 Contra Costa Kirker Pass Comment
  CAS-BOT-BC347391  Malacothrix floccifera Alice Eastwood 1921-6-11 10601 Contra Costa Mt. Diablo Comment
  UC1795010  Malacothrix floccifera R. K. Brummitt, J. Strother and B. Baldwin 1997-5-27 19608 Contra Costa Mount Diablo, W side, Murchio Gap 800 Comment
  UC1618290  Malus sylvestris Barbara Ertter, Lynne Hosley 1993-4-17 11506 Contra Costa 10 air mi n of Livermore (Morgan Territory, hills in lee of Mount Diablo, along Volvon Trail at se edge of park) 609 Comment
Read comments
Aug 15 2016
  CDA37265  Malva neglecta D. G. Kelch 2011-3-31 11 .069 Contra Costa Carquinez Strait Region; Richmond, near Point Pinole Regional Park. Comment
  CHSC33984  Malva nicaeensis Willis Ball 1975-4-19 525 Contra Costa Contra Loma Regional Park. In area #1 ca. 40 yds sw of restroom facility at s end of reservoir. In picnic area. 36 Comment
  JEPS111546  Malva nicaeensis D. G. Kelch 2005-3-13 05 .47 Contra Costa Crockett - weedy area under Zampa Bridge 4 Comment
  UC692622  Malva nicaeensis Mary L. Bowerman 1938-5-25 3631 Contra Costa Mount Diablo, North Road at Arroyo del Cerro (place where bank joins first bottom 7 ft from stream) Arroyo del Cerro; Mount Diablo, Arroyo del Cerro 1097 Comment
  UCD150879  Malva nicaeensis James A. Neilson Jr. 1972-11-2 3619 Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 1 Comment
  UC1795778  Malva parviflora Barbara Ertter, Mary Bowerman 1995-6-11 14248 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, at west base Mt. Diablo.; annual grassland near Indian Valley School entrance, clay soil (planted Clarkia also present). 91 Comment
  RSA721201  Malva parviflora Barbara Ertter, Mary L. Bowerman 1995-6-11 14248 Contra Costa Shell Ridge Recreation Area southwest of Walnut Creek, at west base Mt.Diablo; near Indian Valley School entrance. 91 Comment
  CHSC46936  Marah fabacea R. A. Schlising 1963-6-11 2623 Contra Costa Above the city of Berkeley, along Grizzly Peak Blvd in Oakland Hills. Comment
  UC1005844  Marah fabacea N. Floy Bracelin 1945-4-14 2843 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1050529  Marah fabacea N. Floy Bracelin 1943-2-28 1950 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  RSA724228  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. 156 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
  UC2028576  Marah fabacea Barbara Ertter with Stu Garrett 1997-3-29 15540 Contra Costa West side Mount Diablo, north end of Mothers Trail. Comment
  CHSC46897  Marah oregana R. A. Schlising 1964-4-11 2699 Contra Costa Berkeley/Oakland Hills. Comment
  CHSC46933  Marah oregana Robert A. Schlising 1964-4-2 2671 Contra Costa Berkeley Hills, above city of Oakland. Comment
  JEPS37068  Matricaria discoidea W. L. Jepson 1922-5-18 9647 Contra Costa Berkeley Comment
  UC697138  Matricaria discoidea Mary L. Bowerman 1931-4-4 653 Contra Costa 4.5 mi from Mount Diablo entrance (west road); Mount Diablo Comment
  UC1050002 Image available Maytenus boaria N. Floy Bracelin 1942-4-12 2017 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS112340  Medicago arabica Dean G. Kelch and Andrew G. Murdock 2004-5-2 04 .169 Contra Costa Crockett - Edwards Canyon; County: Contra Coasta; Edwards Canyon, Crockett, Contra Coasta County, CA. Comment
  UC2028593  Medicago arabica Barbara Ertter with Dorothy Frantz 2001-5-10 17642 Contra Costa Pine Canyon on west side of Mount Diablo, junction of Stage Road and Sunset Trail Comment
  POM11730  Medicago polymorpha Katherine Brandegee s.n. Contra Costa Byron Hot Springs. Comment
  POM300626  Melica californica Mary L. Bowerman 1935-4-22 2883 Contra Costa Ridge west of Pioneer Road (west of Stage Road). East face of ridge; Mount Diablo. 854 Comment
  UC692465  Melica californica Mary L. Bowerman 1935-5-1 2941 Contra Costa 4.4 mi from Mount Diablo West Road (North Rd) entrance (North Gate); Mount Diablo 396 Comment
  UCD87145  Melica californica P. B. Kennedy 1916-5-1 s.n. Contra Costa Pinehurst. Comment
  UCD87005  Melica californica R. E. Cuendett 1915-4-18 s.n. Contra Costa Foot of Mt. Diablo. Comment
  UC585495  Melica imperfecta Virginia E. Long 1933-6-14 221 a Contra Costa sse along first w fork Curry Creek trail; Mt. Diablo Comment
  UCD87814  Melica imperfecta Beecher Crampton 1956-5-14 3405 Contra Costa Southern boundary of Mt. Diablo State Park. Comment
  CAS-BOT-BC281432  Melica imperfecta Walter Knight 1972-4-1 s.n. Contra Costa Mallard Slough between Port Chicago and Pittsburg Comment
  CAS-BOT-BC281433  Melica imperfecta Mary L. Bowerman 1931-4-18 714 Contra Costa Mount Diablo. Sycamore Canyon: moist bank where the chaparral does not extend down to the trail 335 Comment
  JEPS99593  Melica torreyana Mary Bowerman 1994-4-17 Contra Costa Mount Diablo, Donner Canyon by fire road near junction 1st trail to Back Canyon. Comment
  UC1948968  Melica torreyana William J. Ferlatte, L. Maynard Moe 1970-4-27 1228 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC691167  Melica torreyana Mary L. Bowerman 1935-5-8 2972 Contra Costa Muir Area 1036 Comment
  UC691224  Melica torreyana Mary L. Bowerman 1933-4-26 1935 a Contra Costa Perkins Canyon branch between the main e ridge of North Peak and ridge to its south (canyon se from North Peak) Mt. Diablo 487 Comment
  POM300623  Melica torreyana Mary L. Bowerman 1935-5-18 3024 Contra Costa Mount Diablo, Northwest facing slope across the road from, and a little east of, the parking area. 1067 Comment
  UC1949288  Mentzelia affinis Barbara Ertter 1991-5-5 9773 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, S side of Rose Hill above Nortonville Pass Comment
  JEPS99554  Mentzelia dispersa Mary Bowerman 1978-6-3 Contra Costa Mount Diablo, between lower summit parking lot and road. Comment
  POM274554  Mentzelia dispersa L. R. Abrams 1921-5-25 8014 Contra Costa On road to summit, Mt. Diablo. Comment
  JEPS42778  Mentzelia micrantha W. L. Jepson 1919-6-8 8331 Contra Costa Mt. Diablo Comment
  POM300650  Mentzelia micrantha Mary L. Bowerman 1933-5-2 1952 Contra Costa Below Pioneer Camp and slightly east: Chaparral-burn, south face. 762 Comment
  UC1795021  Micropus californicus R. K. Brummitt and B. Ertter 1998-5-6 19782 Contra Costa Mt. Diablo, NW side, path to Mitchell's Rock 300 Comment
  UCD32380  Micropus californicus Beecher Crampton 1950-4-22 521 Contra Costa above site of Judsonville, above old Empire Coal Mine. 152 Comment
  UC88373  Micropus californicus var. californicus E. L. Greene 1886-1 Contra Costa Marsh Creek Comment
  CHSC67881  Microseris acuminata James D. Jokerst 1989-3-28 3052 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  JEPS18257  Microseris campestris Peter H. Raven with Mason, Stone, Ornduff, Kuijt 1957-4-4 10581 Contra Costa vernal flats 3.0 mi s 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
  JEPS81843  Microseris douglasii subsp. douglasii Rimo Bacigalupi with G. T. Robbins and Francia Chisaki 1959-4-14 7000 Contra Costa along Lone Tree Way just e Antioch Airport (2 1/2 mi se of Antioch) 56 Comment
  UC1586069  Microseris douglasii subsp. douglasii Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8118 Contra Costa 15 air mi sw Stockton (w and adjacent to Clifton Court Forebay, se Contra Costa County) 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-BC348887  Microseris douglasii subsp. douglasii Mary L. Bowerman 1933-5-8 2008 Contra Costa Mount Diablo. Fossil Ridge, south face, not far from but out of sight of South Entrance 289 Comment
  UC1819049  Microseris douglasii subsp. douglasii Barbara Ertter, Lisa Schultheis 1995-4-27 14012 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
  POM53410  Microseris elegans C. F. Baker 1903-4-28 2830 Contra Costa Marsh Creek, Mt. Diablo. Comment
  JEPS36177  Microseris sylvatica W. L. Jepson 1918-6-3 7590 Contra Costa Donner Canyon Mt. Diablo 304 Comment
  UC2070514  Microseris sylvatica Barbara Ertter with David Gowen and Michael Park 2004-4-13 18357 Contra Costa Black Diamond Mines Regional Park south of Pittsburg, upper part of N-facing slope below Black Diamond Trail, opposite Rose Hill cemetery. Comment
  UCSB5226  Microsteris gracilis Kamb, Peter 1950-3-18 Contra Costa Head of Pine Canyon; Mount Diablo 533 Comment
  CDA41672  Mimulus aurantiacus D. G. Kelch 2005-6-24 5 .383 Contra Costa Carquinez Strait Region; 5th Street Prairie, Crockett. Comment
  LA209141  Mimulus aurantiacus H. Lewis; 1940-7-5 sn Contra Costa E of Berkeley Comment
  JEPS78821  Mimulus aurantiacus var. aurantiacus Edward Lee 1936-5-24 2163 Contra Costa 10 mi from Marsh Creek Road; Morgan Territory Comment
  RSA454334  Mimulus guttatus L. S. Rose 1941-3-27 41064 Contra Costa 2 mi. w. of Byron. 46 Comment
  UCD122684  Mimulus guttatus Carole Lembi 1964-3-1 5 Contra Costa Mt. Diablo Road, 5 miles from top of Mt. Diablo. 304 Comment
  SEINET3159684  Mimulus latidens L. S. Rose 1940-4-11 40184 Contra Costa 3 miles W of Byron. 30 Comment
  UC103726  Mimulus latidens M. K. Curran May 1886 Contra Costa Antioch Comment
  JEPS116944  Mimulus latidens David Gowen 2008-4-16 862 Contra Costa Just south of parking area for Black Diamond Mines Regional Preserve on Frederickson Road. Comment
  CAS-BOT-BC388607  Minuartia douglasii A. D. E. Elmer 1921-6-11 s.n. Contra Costa Mt. Diablo summit Comment
  UC2070482  Minuartia douglasii Gregg Weber 2004-3-23 Contra Costa Briones Reservoir a little east of Hampton Road. Comment
  RSA59589  Minuartia douglasii Verne Grant, Alva Grant 1950-5-13 8897 Contra Costa Saddle between N & Meridian peaks, Mt. Diablo. Comment
  JEPS108214  Moehringia macrophylla David Gowen 2005-4-25 266 Contra Costa Mt. Diablo State Park. North Peak Trail, ca 1/4 mile south of Prospectors Gap. Comment
  RSA135441  Monardella douglasii Volney Rattan 1886-6-14 s.n. Contra Costa Mt. Diablo Comment
  UC691408  Monardella douglasii Mary L. Bowerman 1935-6-1 3116 Contra Costa Diablo Trail Mount Diablo, Meridian Peak 1082 Comment
  CAS-BOT-BC221676  Monardella douglasii Mary L. Bowerman 1930-6-22 369 Contra Costa Mount Diablo. Mitchell Canyon trail: below Deer Flat Comment
  UC2070470  Monardella douglasii Barbara Ertter with John Ginochio 2002-6-1 17941 Contra Costa Ginochio Ranch in Arroyo del Cerro on NW side of Mount Diablo, connector road between Government Road and Olofson Homestead. Comment
  CHSC67994  Monardella villosa subsp. villosa James D. Jokerst 1987-6-16 2915 Contra Costa Livermore Valley, 0.3 mi W of Vasco Rd. and +/- 200 m SW of a dirt track. Comment
  UC2028367  Monardella villosa subsp. villosa Barbara Ertter 1998-6-20 16252 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, N-facing slope above Coyote Creek Comment
  UC2031460  Monolopia gracilens Barbara Ertter with David Gowen 2014-4-12 21715 Contra Costa Ridge on north side of Prospectors Gap Road, ca 1 mile east of Mount Diablo summit Comment
  UC697149  Monolopia gracilens Mary L. Bowerman 1935-5-8 2973 Contra Costa Muir Area Mount Diablo 1005 Comment
  CAS-BOT-BC349608  Monolopia major Ethel Crum 1939-3-19 2083 Contra Costa Two miles west of Byron 45 Comment
  CAS-BOT-BC349614  Monolopia major Alice Eastwood 1914-3-14 3803 Contra Costa Byron Springs Comment
  CAS-BOT-BC349619  Monolopia major C. F. Baker 1903-4-27 2796 Contra Costa Byron Comment
  CAS-BOT-BC349620  Monolopia major Sherwin Carlquist 1952-3-28 285 Contra Costa 7.2 miles west of Tracy Comment
Read comments
Feb 9 2019
  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
  POM301038  Monolopia major Mary L. Bowerman 1932-4-27 1365 Contra Costa Mount Diablo: Oyster Ridge, south face: Grassy west-facing slope of ridge west of Riggs Canyon Comment
  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
  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
  UC1795789  Montia fontana subsp. chondrosperma Barbara Ertter, Mary Bowerman et al. 1995-5-7 14029 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, wet ground around small pond west of road in grassy flat. Comment
  POM300988  Montia fontana subsp. variabilis Mary L. Bowerman 1939-3-31 3736 Contra Costa Spring in bend of road to Barbecue Terrace ( off S road). Comment
  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-BC83291  Myosurus minimus Herbert L. Mason 1952-4-26 14268 Contra Costa 3.5 miles south of Byron. Comment
  CAS-BOT-BC83293  Myosurus minimus Herbert L. Mason 1952-4-26 14269 Contra Costa 3.5 miles south of Byron. Comment
  CAS-BOT-BC83297  Myosurus minimus Peter H. Raven; D. Stone; H. L. Mason; R. Ornduff; et al. 1957-4-4 10583 Contra Costa 3.0 miles south of Byron. Comment
  UC1738113  Myosurus minimus D. E. Stone 1957-3-15 14 -20 Contra Costa 3 mi S of Byron ( on road to Herdlyn) Comment
  UC1101333  Myosurus sessilis Herbert L. Mason 1952-4-14 14264 Contra Costa 3.5 mi s of Byron Comment
  UC1738122  Myosurus sessilis D. E. Stone 1955-8-26 8 -24 Contra Costa on the road to Herdlyn, 3 mi S of Byron Comment
  POM312428  Myosurus sessilis H. L. Mason 1952-4-26 14270 Contra Costa Vernal Pool, 3.5 miles S of Byron Comment
  UC1777714  Myriophyllum sibiricum M. R. Bell 1950-10-9 Contra Costa near Concord (from stock pond on farm of E. J. Mangini) Comment
  UC2028254  Narcissus Barbara Ertter with Gary Schoolcraft 1996-4-7 14581 Contra Costa Molate Beach Park on San Francisco Bay north of San Rafael Bridge, coastal prairie and brushland on bluff 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
  JEPS99983  Nassella lepida S. O'Neil 2003-5-30 SEO 37 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC697123  Nassella lepida Mary L. Bowerman 1935-5-1 2936 Contra Costa North Road 2 mi from North Gate (se exp.); Mount Diablo 182 Comment
  CAS-BOT-BC260126  Nassella pulchra A. A. Beetle 1941-3-28 1718 Contra Costa Orinda Comment
  POM295472  Nassella pulchra Lyman Benson 1935-3-16 6285 Contra Costa Mt. Diablo, Watershed: Walnut Creek; Mountain Range: Mt. Diablo. 305 Comment
  CDA32558  Nassella pulchra A. A. Beetle 1941-3-28 1718 Contra Costa Orinda 0 Comment
  LA206696  Navarretia mellita John Thomas Howell; 1938-6-30 13938 Contra Costa head of Siesta Valley Comment
  SEINET183957  Navarretia mellita John Thomas Howell 1938-6-30 13938 Contra Costa Head od Seista Valley. Comment
  UC126029  Navarretia nigelliformis M. K. Curran 1888-5 Contra Costa Antioch Comment
  JEPS116990  Navarretia nigelliformis subsp. radians David Gowen 2008-4-16 857 Contra Costa West end of Horse Valley. 146 Comment
  UC30206  Navarretia pubescens W. H. Brewer 1862-5-19 1113 Contra Costa n of Kirkers Pass Comment
  UC2028276  Navarretia pubescens Barbara Ertter 1999-6-12 16700 Contra Costa Black Hawk Ridge Road between Knobcone Point Road and NE fork of Sycamore Creek, South side of Mount Diablo. Comment
  JEPS112005  Navarretia squarrosa D. G. Kelch 2005-5-1 05 .191 Contra Costa Crockett - Edwards Canyon 150 Comment
  UCR197889  Navarretia squarrosa Beecher Crampton 1949-6-26 474 Contra Costa Between Pinole and San Pablo, along US Hwy 40 [80], above Garrity Creek 30 Comment
  CDA1155  Nemophila heterophylla D. G. Kelch, Andrew Murdock 2003-3-21 3 .056 Contra Costa Carquinez Strait Region; Martinez; West: Ozol Rock and Scenic Drive. Comment
  JEPS111835  Nemophila heterophylla D. G. Kelch 2003-3-21 03 .56 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  JEPS3220  Nemophila heterophylla W. L. Jepson 1923-4-22 9868 Contra Costa Mt. Diablo Vicinity of San Francisco Bay, Mt. Diablo Comment
  JEPS75500  Nemophila heterophylla P. F. Yorks 1974-4-6 128 Contra Costa on Hampton Road in Hampton Road Natural Reserve ca 1.4 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve, n of Briones Reservoir 180 Comment
  UC67125  Nemophila heterophylla Harley P. Chandler 1901-4-5 948 Contra Costa Pine Canyon , Pine Canyon (Mt. Diablo) Comment
  UC691705  Nemophila heterophylla Mary L. Bowerman 1933-4-9 1838 Contra Costa w fork , Donner Canyon, w fork (Donner Canyon; Mount Diablo) 243 Comment
  UC880873  Nemophila heterophylla Lewis S. Rose 1941-5-15 41238 Contra Costa summit Mt. Diablo 1188 Comment
  POM196037  Nemophila heterophylla R. Raven 1929-3-31 s.n. Contra Costa Marsh Creek Canyon. Comment
  UC880892  Nemophila menziesii Lewis S. Rose 1941-3-13 41029 Contra Costa 3 mi w Byron; w of Byron 30 Comment
  JEPS111831  Nemophila menziesii var. menziesii D. G. Kelch 2005-3-25 05 .96 Contra Costa Fernandez Ranch Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak 115 Comment
  UC2027953  Nerium oleander Barbara Ertter with Joanne Kerbavaz and Mary Bowerman 2000-8-20 17509 Contra Costa North side Mount Olympia in Mount Diablo State Park, bulldozed site of former occupation at Zippe Spring. Comment
  UC2028006  Nicotiana glauca Barbara Ertter with Amy Rusev 1998-1-17 15899 Contra Costa Edge of Lime Ridge Open Space at NW foot of Mount Diablo, around former quarry [subsequently developed] on south side of Ygnacio Valley Road. Comment
  CDA5795  Nicotiana tabacum R. DeBoer 1966-12-2 Contra Costa Golden Gate Fish Co., Point San Pablo, Richmond. 0 Comment
  UC691106  Oemleria cerasiformis Mary L. Bowerman 1935-3-16 2734 Contra Costa Peach Tree Springs Rd. Mount Diablo (e fork of canyon) 228 Comment
  SBBG39495  Oemleria cerasiformis L. S. Rose 1970-3-2 70011 Contra Costa 2 mi NW of Canyon 213 Comment
  UCSB26442  Oemleria cerasiformis Keefe, Joseph 1967-3-21 Contra Costa Huckleberry Trail, 0.5 mi. east of Skyline Blvd., near intersection with Grizzly Peak Blvd., east of Berkeley 274 Comment
  UCD127743  Oenanthe sarmentosa Walter Knight; Irja Knight et al. 1978-9-5 3222 Contra Costa Browns Island. In marsh south of Sandy Knoll. Comment
  UC169387  Oenothera deltoides subsp. cognata K. Brandegee 1892-5 Contra Costa Antioch Comment
Read comments
Sep 29 2008
  CDA38166  Oenothera deltoides subsp. cognata Harry Spanglet 2008-7-1 s.n. Contra Costa West side of Emerson Ranch (Emerson Tract?), nr. Oakley, part of DWR s Dutch Slough Restoration Project. 0 Comment
  CAS-BOT-BC171592  Oenothera deltoides subsp. howellii Volney Rattan 1879-1-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC171593  Oenothera deltoides subsp. howellii James McMurphy 1909-5-23 s.n. Contra Costa Antioch Comment
  POM310930  Oenothera deltoides subsp. howellii P. D. Hurd 1952-5-26 s.n. Contra Costa 1 mile east of Antioch in sand dunes, near western margin of San Joaquan River close to its mouth 30 Comment
  RSA144914  Oenothera deltoides subsp. howellii Peter Rubtzoff 1954-9-14 1756 Contra Costa Sand dunes along lower San Joaquin River, east of Antioch. Comment
  NY233529  Oenothera deltoides var. howellii A. Eastwood 1936-4-19 2147 Contra Costa Comment
  RSA0004532  Oenothera deltoides var. howellii Alice Eastwood, J. T. Howell 1936-4-19 2147 Contra Costa Sand dunes at Antioch Comment
  UC2028046  Olea europaea Barbara Ertter 1998-3-1 15921 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, Sulfur Creek upstream from Good's Spring. Comment
  UC691753  Orobanche bulbosa Mary L. Bowerman 1938-6-24 3694 Contra Costa Pioneer Road junction 853 Comment
  UC1076301  Orobanche fasciculata Herbert L. Mason 1926-5-7 2704 Contra Costa Near Summit of Mount Diablo. Comment
  UC887954  Orobanche fasciculata Lewis S. Rose 1941-5-15 41243 Contra Costa Mt. Diablo, near summit. Comment
  CAS-BOT-BC499851  Orobanche fasciculata Alice Eastwood 1915-5-30 4536 Contra Costa Mt. Diablo Comment
  JEPS102913  Orobanche pinorum Christopher Thayer 1995-6-27 Contra Costa Mount Diablo State Park, below Prospectors Gap along trail to Murchio Gap Comment
  UC1607664  Orobanche uniflora Barbara Ertter with Michelle Seidl 1992-3-14 10918 Contra Costa Morgan Territory Regional Preserve e of Mount Diablo; Morgan Territory Regional Preserve Comment
  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
  UC27898  Orobanche uniflora subsp. occidentalis J. Burtt Davy 1895-4-13 1004 Contra Costa Lafayette. Comment
  UC691747  Orobanche uniflora subsp. occidentalis Mary L. Bowerman 1935-5-18 3029 Contra Costa Mount Diablo. North of the large summit parking area. Exposure northeast. Comment
  JEPS19479  Orobanche vallicola Herbert L. Mason 1929-9-21 5432 Contra Costa 3 mi. above Clayton (Marsh Creek Rd.) Comment
  POM15646  Orthocarpus attenuatus H. P. Chandler 1901-3-21 843 Contra Costa Concord. Comment
  PASA163  Orthocarpus pusillus Frank W. Peirson 1926-4-10 Contra Costa Road from Pablo to Pinole Comment
  UC1094580  Osmorhiza berteroi C. R. Bell 1953-3-27 1407 Contra Costa Berkeley, U.C. campus Comment
  UC1795761  Panicum capillare Barbara Ertter, Lincoln Constance 1995-6-16 14262 Contra Costa East edge Dow Marsh on west side Antioch Marina, south side San Joaquin River in Delta area, mud on riprap. Comment
  RSA0029056  Panicum capillare Barbara Ertter, Mary L. Bowerman, Lisa Schultheis 1998-8-21 16396 Contra Costa South side of Mount Diablo, South Gate Road 1.1 mi below entry kiosk. 366 Comment
  HSC94231  Papaver heterophyllum C. Newberry 1994-4-30 7247 Contra Costa Mt. Diablo State Park, trail from Mitchell Canyon parking to Donner Creek 900 Comment
  UCD88473  Parapholis incurva Katharine Brandegee 1923-5-8 s.n. Contra Costa Byron Springs. Comment
  UCD88661  Parapholis incurva P. B. Kennedy 1928-5-12 s.n. Contra Costa Byron Hot Springs. Comment
  CDA4220  Paraserianthes lophantha D. G. Kelch 2006-12-2 6 .509 Contra Costa Carquinez Strait; Along drainage channel under Zampa Bridge, Crockett. Comment
  UC1111579  Parietaria hespera var. californica Herbert L. Mason 1929-5-5 5260 Contra Costa Nortonville Comment
  JEPS105696  Parietaria hespera var. californica David Gowen 2004-4-16 31 Contra Costa Black Diamond Mines Regional Preserve. Canyon that heads south of the Nortonville townsite. Comment
  JEPS100036  Paspalum dilatatum S. O'Neil 2003-9-16 SEO 46 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CDA37338  Paspalum distichum D. G. Kelch 2010-10-31 10 .443 Contra Costa Valley north of Alhambra Valley Rd., south of Pinole Peak, east of Hercules. Comment
  UC2028558  Paspalum distichum Barbara Ertter with Chris Thayer 1996-10-25 15366 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothill Regional Park. Comment
  UCD84177  Paspalum distichum Chuck Hughes 2009-10-2 136 Contra Costa Marsh Creek at County Jail on Marsh Creek Road. 179 Comment
  UC573135  Pectocarya penicillata H. L. Mason 1932-3-20 6845 Contra Costa Antioch sand hills Comment
  UC691635  Pectocarya pusilla Mary L. Bowerman 1933-4-22 1896 Contra Costa spur running nw Cave Point; Inner Black Hills Comment
  JEPS108356  Pectocarya pusilla David Gowen 2005-4-4 225 Contra Costa Sibley Regional Preserve. East of Round Top and ouside of the park. NE-facing slope half way down to the valley. Comment
  UCD123307  Pedicularis densiflora Robert C. Bechtel 1952-4-12 54 Contra Costa Mt. Diablo. Comment
  UC198950  Pediomelum californicum H. M. Hall and F. M. Essig 1916-5-31 10133 Contra Costa Summit Mount Diablo Comment
  UC692690  Pediomelum californicum Mary L. Bowerman 1935-6-1 3114 Contra Costa summit Mount Diablo Mount Diablo, summit (between the one-way roads) Comment
  POM20615  Pediomelum californicum F. W. Peirson 1923-7-1 3618 Contra Costa Contra Costa County: summit of mt Diablo Comment
  JEPS106989  Pellaea andromedifolia J. Greenhouse with Kevin Hintsa 2004-4-5 5087 Contra Costa Mt. Diablo, Fire Interpretive Trail, Devil's Pulpit 1088 Comment
  JEPS79489  Pellaea andromedifolia Edward Lee with Annetta Carter 1936-1-12 1708 Contra Costa canyon immediately s of Nortonville Comment
  RSA686984  Pellaea mucronata Mark Morris 1929-03 14909 Contra Costa Mount Diablo, Contra Costa Comment
  JEPS17394  Penstemon centranthifolius Rimo Bacigalupi with G. T. Robbins 1955-5-4 4984 Contra Costa about 1 1/4 mi e Antioch (near the San Joaquin River); near San Joaquin River, e of Antioch 9 Comment
  JEPS4477  Penstemon centranthifolius G. Thomas Robbins 1940-5-19 324 Contra Costa e Antioch; bordering San Joaquin River e of Antioch Comment
  NY583859  Penstemon centranthifolius A. A. Heller 1908-4-16 8895 Contra Costa East of Antioch 22.9 Comment
  POM224482  Penstemon centranthifolius L. S. Rose 1936-4-24 36158 Contra Costa 3 mi E of Antioch. 15 Comment
  RSA101693  Penstemon centranthifolius H. L. Mason 1929-3-31 5156 Contra Costa Along San Joaquin River, Antioch. Comment
  SEINET12320780  Penstemon centranthifolius Unknown 1980-1 3879 Contra Costa Lime Ridge, N end, S of Ygnacio Valley Rd between Walnut Creek & Concord Comment
  RSA93278  Pentachaeta alsinoides Alice Eastwood, J. T. Howell 1936-4-19 2138 Contra Costa Nortonville. Comment
  UC34652  Pentachaeta alsinoides Chesnut and Drew 1889-4-16 Contra Costa Martinez Comment
  JEPS116790  Pentachaeta alsinoides David Gowen 2006-6-14 610 Contra Costa Morgan Territory Regional Park; At the NW end of Eagle Trail. Comment
  SBBG122848  Pentachaeta alsinoides B. Ertter, L. Schulteis 1995-4-27 14006 Contra Costa end of Arbolado Drive, Lime Ridge open space NW of Mt Diablo 121 Comment
  SEINET3873573  Pentagramma triangularis Clayton Newberry 1994-4-30 7252 Contra Costa Mount Diablo State Park, trail from Mitchell Cn. Prkng to Donner Cr.; 0 900 Comment
  UC1354307  Perideridia californica T. I. Chuang, L. R. Heckard and R. Bacigalupi 1968-4-27 6437 Contra Costa Deer Flat Mt. Diablo Comment
  UC692261  Perideridia californica Mary L. Bowerman 1933-6-20 2329 Contra Costa edge of stream <a> little above Bilharan Lodge; Mount Diablo, Donner Canyon Comment
  UC691890  Perideridia kelloggii Mary L. Bowerman 1938-6-30 3698 Contra Costa Black Oak Flat Mount Diablo (dry streamlet n of chaparral) 762 Comment
  UC1390000  Perideridia oregana T. I. Chuang, L. Constance, R. S. Mitchell, and S. Banwar 1965-7-23 6009 Contra Costa just below Live Oak Picnic Area; Mount Diablo 487 Comment
  CAS-BOT-BC413498  Persicaria amphibia Walter Knight; Joanne Dean 1978-8-14 3176 Contra Costa Browns Island Comment
  CAS-BOT-BC418832  Persicaria hydropiperoides Brian Atwater 1978-10-24 BA- 165 Contra Costa Between Bethel Island and Holland Tract Comment
  RSA428314  Phacelia Alice Eastwood 1931-5-30 18617 Contra Costa Oak Spring Comment
  UC107330  Phacelia breweri Katharine Curran May 1883 Contra Costa Mt. Diablo Comment
  UC691690  Phacelia breweri Mary L. Bowerman 1933-5-2 1953 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  UC880993  Phacelia breweri Lewis S. Rose 1941-5-15 41239 Contra Costa summit Mt. Diablo 1188 Comment
  UC672385  Phacelia californica Herbert L. Mason 1928-4-13 4300 Contra Costa cliffs facing Bay Richmond Comment
  POM89836  Phacelia ciliata Chesnut, E. R. Drew 1889-4-17 s.n. Contra Costa Summerville. Comment
  UC131485  Phacelia distans C. F. Baker 1903-4-28 2806 Contra Costa Antioch Comment
  UC24341  Phacelia distans J. Burtt Davy 1895-4-7 917 Contra Costa Antioch Comment
  UC672426  Phacelia distans Herbert L. Mason 1929-3-29 5122 Contra Costa Mount Diablo 762 Comment
  POM65421  Phacelia distans C. F. Baker 1903-4-28 2806 Contra Costa Antioch Comment
  RSA276849  Phacelia douglasii James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  JEPS2169  Phacelia imbricata subsp. imbricata W. L. Jepson 1918-6-5 7611 Contra Costa North Peak Mount Diablo 944 Comment
  UC691694  Phacelia nemoralis subsp. nemoralis Mary L. Bowerman 1936-5-6 3410 Contra Costa Mitchell Canyon Mount Diablo (by road) 228 Comment
  POM300966  Phacelia nemoralis subsp. nemoralis Mary L. Bowerman 1934-4-21 2537 Contra Costa Muir Area. Comment
  POM310991  Phacelia phacelioides Lincoln Constance, C. W. Sharsmith, H. S. Reed 1940-4-27 2574 Contra Costa North of Juniper Camp, Mount Diablo 762 Comment
  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
  UC881269  Phacelia tanacetifolia Alice Eastwood 1914-3-14 3804 Contra Costa Byron Springs Comment
  RSA29642  Phacelia tanacetifolia Joseph A. Ewan 1935-3-6 9128 Contra Costa Donovan Road, Kirker Pass. Comment
  UCD88527  Phalaris arundinacea Malcolm A. Nobs; S. Galen Smith 1949-7-8 945 Contra Costa Otto's Black Bass Resort, 4 miles N of Kingston. Comment
  UC50726  Phalaris californica Jos. Burtt Davy Apr 1897 Contra Costa Point Isabel Comment
  UC407384  Phalaris lemmonii Ira L. Wiggins 1930-4-17 4583 Contra Costa 1/4 mi s Byron Comment
  UC1132436  Phalaris minor C. M. Belshaw 1936-5-11 2099 Contra Costa 2 1/2 mi ese Danville (Plot 19); Mt. Diablo Quadrangle 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
  CAS-BOT-BC265961  Phalaris minor Mary L. Bowerman 1934-4-21 2533 Contra Costa Muir Area, Mount Diablo Comment
  JEPS72970  Phalaris paradoxa W. L. Jepson 1940-6-5 19937 Contra Costa Richmond Comment
  UCD146719  Phalaris paradoxa G. F. Hrusa; D. Crowe 1998-5-8 14368 Contra Costa Sacramento-San Joaquin River Delta. On Dow Chemical property at Pittsburg. 15 Comment
  UCD89359  Phalaris paradoxa Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  SEINET5566389  Phalaris paradoxa E. A. Bernays 1985-1 s.n. Contra Costa Russell Reserve. Comment
  UC908774  Phlox gracilis R. F. Hoover 1935-3-10 313 Contra Costa Antioch Comment
  RSA459276  Pholistoma membranaceum H. de Forest 1930-4-6 s.n. Contra Costa S.E. of Mortonville. Small coal mine ravine. 244 Comment
  UC1078913  Phoradendron macrophyllum Job Kuijt 1958-1-12 1443 Contra Costa near Walnut Creek (Saranap); Saranap Comment
  UCD163491  Phragmites australis D. Slakey; CNPS Volunteers 2015-9-12 224 Contra Costa Northern edge of Browns Island, at entrance to Crooked Slough. Plants infected with pests; TJM 2 0 Comment
  CDA9279  Phragmites australis D. G. Kelch 2002-7-15 2 .007 Contra Costa CA Delta; Old San Joaquin River channel, E of Brentwood. San Joaquin County border. 0 Comment
  SBBG122964  Phyla nodiflora B. Ertter 1990-9-10 9634 Contra Costa Briones Hills S of Martinez, Maricich Lagoon at jct of Alhambra Crk Trail and Old Briones Rd; Briones Regional Park 335 Comment
  UCD33148  Phyllostachys Beecher Crampton 1966-10-18 7814 Contra Costa Contra Costa County, Kensington, Berkeley Hills Blake Garden, UC Berkeley Dept. of landscape architecture. Comment
  UC311108  Pickeringia montana var. montana A. D. E. Elmer May, 1903 4315 Contra Costa Mount Diablo Comment
  CAS-BOT-BC76966  Pilularia americana Katharine Brandegee 1909-4-24 s.n. Contra Costa Between Antioch and Marsh Creek, Briones Road. Comment
  POM210012  Pilularia americana Katherine Brandegee 1909-4-24 s.n. Contra Costa Between Antioch and Marsh Creek, Briones Road Comment
  JEPS47871  Pinus coulteri W. L. Jepson 1909-6-25 3116 Contra Costa Mt. Diablo Comment
  RSA32648  Pinus coulteri C. B. Wolf, Allen L. Chickering, H. L. Mason 1943-2-28 11442 Contra Costa 1 mile SW of the old coal mining settlement of Nortonville at the Northern base of Mt. Diablo hills. 305 Comment
  JEPS84499  Piperia elegans Jack Stratford 1980-8-6 Contra Costa Huckleberry Trail Huckleberry Botanic Regional Preserve Comment
  JEPS79510  Piperia elongata Edward Lee 1978-7-9 Contra Costa Pt. San Pablo Comment
  CDA39509  Piperia transversa D. G. Kelch 2005-5-23 5 .379 Contra Costa Carquinez Strait Region; Crockett; West Valona (Crockett), between railroad tracks and Pinus pinea grove. Comment
  CAS-BOT-BC158327  Piperia unalascensis Alice Eastwood 1915-5-30 4456 Contra Costa Field redacted by CAS, contact the data manager for more information Comment
  UC1819070  Piptatherum miliaceum Barbara Ertter, Mary Bowerman, Lisa Schultheis 1995-3-31 13940 Contra Costa Mount Diablo State Park, lower end of Mitchell Canyon south of Clayton, on east side of stream not far from trail head. 182 Comment
  UC2028436  Piptatherum miliaceum Barbara Ertter with Chris Thayer 1996-10-25 15353 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park Comment
  JEPS68955  Plagiobothrys acanthocarpus Edward Lee 1935-3-10 1287 Contra Costa Kirker Pass, Donovan Road, w watershed of Kirker Creek Kirker Pass; , Donovan Road Comment
  JEPS73694  Plagiobothrys acanthocarpus L. R. Heckard with Wm. Hirano and Ted Niehaus 1968-3-5 1763 Contra Costa along Byron-Bethany road about 3 mi se Byron (at junction of Holey Road, between railroad and hwy) 7 Comment
  CDA31452  Plagiobothrys bracteatus D. G. Kelch 2006-5-2 6 .211 Contra Costa Carquinez Strait; Fernandez Ranch; W. Christie Rd. Comment
  UC1084390  Plagiobothrys bracteatus G. Thomas Robbins 1937-4-25 149 Contra Costa 2 mi e Alamo Comment
  UC101457  Plagiobothrys canescens Katharine Brandegee May 1907 Contra Costa Antioch Station S.P.R.R. Antioch Comment
  UC517994  Plagiobothrys canescens Lewis S. Rose 1933-3-29 33046 Contra Costa Pittsburg Comment
  CDA1340  Plagiobothrys leptocladus D. G. Kelch 1992-3-21 1824 -A Contra Costa 2.5 mi. SE of Byron; along RR tracks, N of junction of Holey Rd. and Byron Hwy. 0 Comment
  SBBG96463  Plagiobothrys nothofulvus W. J. Dress 1951-3-17 3068 Contra Costa eastern slope of Berkeley Hills, just W of Orinda Comment
  UC1069046  Plagiobothrys nothofulvus R. C. Wilson 1935-3-29 161 Contra Costa 1/2 mi w Deer Flat; Mt. Diablo Quadrangle Comment
  HSC3502  Plagiobothrys stipitatus Greg Bos 1963-4-26 88 Contra Costa Pinole Valley Rd., SE of Pinole 76 Comment
  UC1618195  Plagiobothrys stipitatus var. micranthus Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8126 Contra Costa ca. 15 air miles s.w. Stockton (alkali sink w. and adjacent to Clifton Court Forebay); s.e. contra Costa Co. Comment
  UC79381  Plagiobothrys stipitatus var. micranthus Katharine Brandegee Apr 1889 Contra Costa Byron Comment
  UC78090  Plagiobothrys tenellus Katharine Curran April 1885 Contra Costa Antioch Comment
  JEPS111833  Plagiobothrys trachycarpus A. G. Murdock 2004-3-19 230 /231 Contra Costa Hercules - Carbon 50 Comment
  UC24586  Plagiobothrys trachycarpus W. H. Brewer 1862-4-30 1007 Contra Costa Walnut Creek; ; Walnut Creek, Camp 69 Comment
  UC2028324  Plagiobothrys trachycarpus Barbara Ertter with Richard K. Brummitt 1998-5-13 16143 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, depression in road from Somersville Road to south leg of Loughler Loop Trail. Comment
  JEPS116853  Plagiobothrys undulatus David Gowen 2007-4-16 677 Contra Costa Briones Regional Park in vernal depression northeast of Sindicich Lagoon. Comment
  UC1736692  Plantago bigelovii Dean W. Taylor 1971-4-1 980 Contra Costa junction of Byron Road and Holley Road; vernal pool 7 Comment
  POM283866  Plantago bigelovii subsp. bigelovii Annetta Carter 1933-4-9 291 Contra Costa About 2 miles southwest of Nortonville. Comment
  CAS-BOT-BC6475  Plantago californica M. K. Curran 1883-1-1 s.n. Contra Costa Antioch Comment
  UC28002  Plantago elongata J. Burtt Davy 1900-3-24 6522 Contra Costa near Stege Comment
  JEPS112001  Plantago erecta D. G. Kelch 2005-4-24 05 .156 Contra Costa Franklin Canyon Franklin Canyon, Contra Costa County, CA. Collier Hill. West Carbon 60 Comment
  JEPS6441  Plantago erecta W. L. Jepson 1922-5-11 9637 Contra Costa North Berkeley Hills Comment
  JEPS22022  Plantago lanceolata G. Thomas Robbins with S. Galen Smith 1958-6-2 3854 Contra Costa Just east of crossing of Hastings Slough on road between Port Chicago and Avon Comment
  UCD124602  Plantago lanceolata G. Thomas Robbins; S. Galen Smith 1958-6-2 3854 Contra Costa Along roadside just east of crossing of Hastings Slough on road between Port Chicago and Avon. 1 Comment
  CDA37283  Plantago major D. G. Kelch 2011-3-31 11 .076 Contra Costa Carquinez Region; Richmond; Hilltop Lake Park. Comment
  UCD124562  Plantago subnuda Ann F. Johnson 1978-6-30 AN- 57 Contra Costa along edge of San Joaquin River, PG and E.-site, Antioch Dunes. Comment
  JEPS112003  Platanus racemosa D. G. Kelch 2004-4-25 04 .106 Contra Costa Arroyo del Hambre Along Alhambra Creek in Martinez 74 Comment
  CAS-BOT-BC91605  Platystemon californicus John Thomas Howell 1933-5-14 11277 Contra Costa Hills east of Saint Mary's College. Comment
  UC101592  Platystemon californicus Katharine Brandegee 1907-5-5 c Contra Costa between Antioch and Marsh Creek; between Antioch and Marsh Creek Comment
  SEINET3160735  Platystemon californicus L. S. Rose 1940-4-11 40189 Contra Costa 2 mi. w. of Byron Comment
  UCD32384  Platystemon californicus Beecher Crampton 1950-4-22 528 Contra Costa Contra Costa County, above Judsonville, above old Empire Mine to south around top of hills. 182 Comment
  JEPS4797  Plectritis ciliosa subsp. ciliosa W. L. Jepson 1922-5-23 9665 Contra Costa Mount Diablo Comment
  UC691528  Plectritis ciliosa subsp. insignis Mary L. Bowerman 1931-3-8 558 Contra Costa above mouth of Mitchell Canyon (Mount Diablo); Mount Diablo 457 Comment
  UC28871  Plectritis macrocera Jos. Burtt Davy 1901-4-21 Contra Costa Wildcat Canyon Comment
  UC74929  Plectritis macrocera C. F. Baker 1903-4-28 2813 Contra Costa Mount Diablo, Mitchell's Canyon Mount Diablo; Pacific Coast, , Mitchell's Canyon Comment
  UC2028569  Pleuropogon californicus Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15517 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UC39496  Pleuropogon californicus W. H. Brewer 1862-5-1 1043 Contra Costa Walnut Creek Comment
  UC400145  Pleuropogon californicus Ynes Mexia 1929-4-21 2388 Contra Costa junction of Franklin Canyon Comment
  CAS-BOT-BC260942  Pleuropogon californicus var. californicus W. H. Brewer 1862-5-1 1043 Contra Costa Walnut Creek Comment
  CAS-BOT-BC260943  Pleuropogon californicus var. californicus W. H. Brewer 1862-5-1 1043 Contra Costa Walnut Creek Comment
  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
  UCD90186  Pleuropogon californicus var. californicus R. Tofsrud 1946-4-1 s.n. Contra Costa Concord airfield. Comment
  CDA8487  Pluchea odorata D. G. Kelch, A. G. Murdock 2004-7-9 4 .311 Contra Costa Carquinez Strait Region; Pacheco Marsh. Pacheco Hill Marsh west of Pacheco Slough. Comment
  CAS-BOT-BC261042  Poa D. E. Breedlove 1971-5-14 19338 Contra Costa Along Sierra Vista Way, Lafayette Comment
  UCD36910  Poa annua Beecher Crampton 1956-5-14 3374 Contra Costa 5 miles south of city of Antioch, on Empire Mine Drive, at head of Horse Valley. Comment
  UCD90264  Poa annua A. A. Beetle 1942-3-22 2926 Contra Costa Brooks Island in San Francisco Bay. Comment
  SEINET10593459  Poa annua Alan A. Beetle 1942-3-22 Beetle 2926 Contra Costa Brooks Island, San Francisco Bay, near Richmond. Comment
  CDA35481  Poa bulbosa Ed Finley 1992-4-9 PDR# 962398 Contra Costa Morgan Territory Regional Preserve, near Mt. Diablo. 0 Comment
  CAS-BOT-BC246647  Poa howellii Mary L. Bowerman 1933-6-3 2247 Contra Costa Mount Diablo. Meridian Peak summit: ridge north of lower junction of one-way roads Comment
  POM205468  Poa howellii Jos Burtt Davy 1899-4-19 7853 Contra Costa Las Trampas Creek Comment
  UC912661  Poa howellii Herbert L. Mason 1928-4-15 4350 Contra Costa e end Moraga Ridge Comment
  UCD91103  Poa howellii Beecher Crampton 1956-5-14 3396 Contra Costa along Marsh Creek, Morgan Territory, southeast of Mt. Diablo. Comment
  POM301052  Poa secunda Mary L. Bowerman 1935-5-18 3031 Contra Costa Meridian Peak north of the summit parking area 1067 Comment
  CDA9433  Poa secunda D. G. Kelch 2002-5-2 s.n. Contra Costa Altamont Hills; Corral Hollow Rd. 0 Comment
  CAS-BOT-BC236386  Poa secunda subsp. secunda Mary L. Bowerman 1933-4-15 1869 Contra Costa Mount Diablo. Canyon S of Arroyo del Cerro: Rocky knoll 250 feet below spring Comment
  CAS-BOT-BC236391  Poa secunda subsp. secunda A. A. Beetle 1941-3-23 1713 Contra Costa 1 mile E of St. Mary's College 182 Comment
  CAS-BOT-BC236395  Poa secunda subsp. secunda D. E. Breedlove 1970-4-18 17551 Contra Costa At the N edge of Lafayette above Laurel Drive 243 Comment
  CAS-BOT-BC236396  Poa secunda subsp. secunda J. W. Stacey 1934-3-21 34069 Contra Costa Marsh Creek, 6 miles E of Clayton Comment
  UC1037102  Poa secunda subsp. secunda Leo Whitney 1935-4-21 3058 Contra Costa 1 mi nw Corral Hollow Comment
  UC38696  Poa secunda subsp. secunda J. Burtt Davy 1895-4-8 898 Contra Costa Antioch Comment
  UC691169  Poa secunda subsp. secunda Mary L. Bowerman 1933-6-3 2237 Contra Costa summit Meridian Peak (Ransom Point trail); Mt Diablo Comment
  UC70972  Poa secunda subsp. secunda unknown Contra Costa Region of Mt Diablo Comment
  UC70975  Poa secunda subsp. secunda H. M. Hall 1901-3-17 1661 Contra Costa Pt Richmond Comment
  UC768489  Poa secunda subsp. secunda R. F. Hoover 1941-4-11 4834 Contra Costa Marsh Creek Canyon Comment
  CAS-BOT-BC236385  Poa secunda subsp. secunda Mary L. Bowerman 1935-5-18 3028 Contra Costa Mount Diablo. N of the summit parking area 1036 Comment
  CDA32646  Poa secunda subsp. secunda A. A. Beetle 1941-3-28 1721 Contra Costa Orinda 0 Comment
  UC2028547  Poa secunda subsp. secunda Barbara Ertter 1998-4-4 15951 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, grasslands along creek south of Indian Valley School. Comment
  SEINET13947037 Image available Pogogyne Joseph Andorfer Ewan 1936-1 9694 Contra Costa W slope of Bald Peak, San Pablo Ridge Comment
  JEPS107077  Pogogyne serpylloides Barbara Ertter, Lisa Schultheis 1995-4-27 14017 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; head of west facing scrub-filled draw (east of golf-course). Comment
  RSA0022141  Pogogyne serpylloides Mary L. Bowerman 1931-5-21 876 Contra Costa Curry Canon. Hard, open flat by Olafsons barn 274 Comment
  UC691511  Pogogyne serpylloides Mary L. Bowerman 1932-4-9 1322 Contra Costa Inner Black Hills: Firebreak on large spur which heads into Sycamore Canyon Comment
  UC691516  Pogogyne serpylloides Mary L. Bowerman 1931-5-21 876 Contra Costa Curry Canyon: Hard open flat by Olafson's barn 274 Comment
  UC1988939  Pogogyne zizyphoroides R. F. Hoover 1941-4-12 4842 Contra Costa 2 mi S of Antioch Comment
  CDA34157  Polycarpon tetraphyllum D. G. Kelch, D. A. Weinstein 2011-6-3 11 .569 Contra Costa Carquinez Strait Region.; Martinez. 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
  JEPS51308  Polygonum aviculare subsp. aviculare W. L. Jepson 1891-5-24 Contra Costa Mt. Diablo Comment
  CDA31465  Polygonum aviculare subsp. buxiforme D. G. Kelch 2006-8-12 6 .376 Contra Costa Carquinez Strait; Martinez. Along Alhambra Creek near train station. Comment
  CDA2790  Polygonum cuspidatum R. DeBoer 1969-5-9 Contra Costa West side of parking lot, Rexal Park Pharmacy, 3716 San Pablo Dam Road, El Sobrante. 0 Comment
  UC1818918  Polygonum lapathifolium Barbara Ertter 1995-8-19 14503 Contra Costa Edge of Cerrito Creek on north side of Albany Hill, south edge of El Cerrito; dense weeds at edge of sluggish water. Comment
  RSA309337  Polypodium californicum Edward Lee, C. Belshaw 1935-12-28 1706 Contra Costa Southwest-facing slope, Las Trampas Ridge, Las Trampas Peak 442 Comment
  JEPS79503  Polypodium calirhiza Edward Lee with C. Belshaw 1935-12-28 1706 Contra Costa Las Trampas Ridge Las Trampas Peak 441 Comment
  UC1222107  Polypodium calirhiza Joseph Andorfer Ewan 1934-3-10 8657 Contra Costa 1/2 mi below Orinda rd. bridge; Wildcat Canyon Comment
Read comments
Aug 23 2009
  UC1478304  Polypodium calirhiza Alan R. Smith with Tom Lemieux 1981-11-19 826 Contra Costa n slope Mt. Diablo (creekside ravine along North Gate Rd., 3.6 mi w of (below) Park HQ (South Gate Rd. junction); Mt. Diablo State Park 640 Comment
  UC1541044  Polypodium calirhiza Dick Moe 1985-2-24 Contra Costa Red Rock Isl.; San Francisco Bay Comment
  UC1948930  Polypodium calirhiza William J. Ferlatte, L. Maynard Moe 1970-4-27 1235 Contra Costa San Francisco Bay: Red Rock Island Comment
  JEPS79616  Polypodium calirhiza Edward Lee 1979-4-26 Contra Costa prospector's jeep trail Devil's Elbow; Mt. Diablo Comment
  UC1819024  Polypogon interruptus Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14634 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
  UC691207  Polypogon interruptus Mary L. Bowerman 1936-8-17 3528 Contra Costa Sulphur Spring in Pine Canyon Mount Diablo; , Pine Canyon, Sulphur Spring 137 Comment
  CDA2351  Polypogon monspeliensis A. A. Beetle 1941-6-24 1750 Contra Costa Point Richmond on San Francisco Bay 0 Comment
  RSA484484  Polypogon monspeliensis A. A. Beetle 1941-6-24 s.n. Contra Costa Point Richmond on San Francisco Bay. Comment
  SBBG689  Polypogon monspeliensis A. A. Beetle 1941-6-24 1750 Contra Costa Point Richmond on San Francisco Bay Comment
  UC691910  Polypogon monspeliensis Mary L. Bowerman 1932-11-19 1656 Contra Costa Lower Grapevine Spring Mount Diablo; , Lower Grapevine Spring Comment
  UCD37370  Polypogon monspeliensis Beecher Crampton 1959-9-3 5453 Contra Costa Contra Costa County, 2 miles north of city of Orinda, Bear Creek, East Bay Municipal Utilities District Project. 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
  UCD91299  Polypogon monspeliensis Beecher Crampton 1959-9-3 5453 Contra Costa Contra Costa County, 2 miles north of city of Orinda, Bear Creek. Comment
  RSA720803  Polypogon viridis Mary L. Bowerman 1975-9-14 s.n. Contra Costa Mount Diablo. Muddy rivuley coming from leak in pipe near Chase Pond. Comment
Read comments
Jun 30 2011
  UC2013044  Polypogon viridis Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14917 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate road along Little Pine Creek. Comment
  CAS-BOT-BC76718  Polystichum lemmonii C. G. Pringle 1881-8-20 s.n. Contra Costa Mountains about eh head waters of the Sacramento River Comment
  CAS-BOT-BC76719  Polystichum lemmonii C. G. Pringle 1881-8-19 s.n. Contra Costa Mountains about eh head waters of the Sacramento River Comment
  JEPS100004  Populus fremontii A. Langston 2003-9-16 AL 91 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1925893  Populus fremontii Donald G. Nelson 1937-4-29 514 Contra Costa Road from Pinole south towards Alhambra Road. Comment
  UC406993  Populus fremontii subsp. fremontii Ira L. Wiggins 1930-4-18 4602 Contra Costa se side Jersey Island (Levee bank); se side of Jersey Island Comment
  CHSC106700  Potamogeton diversifolius Barbara Ertter; Brad Olson 1991-9-28 10839 Contra Costa San Pablo Reservoir between Orinda and El Sobrante, in shallow water at S end of reservoir. 91 Comment
  UC2029168  Potamogeton pectinatus Barbara Ertter 2000-7-16 17399 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park. Comment
  CAS-BOT-BC143055  Potentilla anserina subsp. pacifica Walter Knight; Joanne Dean 1978-8-14 3169 Contra Costa Browns Island Comment
  SEINET3840785  Proboscidea lutea Unknown 2006-8-6 6 .359 Contra Costa Alhambra Valley road, between Castro Ranch road and Bear Creek road, along the edge of a plowed field 80 Comment
  UC2012969  Prunus cerasifera Barbara Ertter with Tony Morosco 1996-7-27 15033 Contra Costa Mount Diablo State Park, lower Donner Creek at old cabin site. Comment
  UC2028038  Prunus dulcis Barbara Ertter 1998-3-7 15931 Contra Costa Dan Cook Canyon on southwest side of Mount Diablo. Comment
  UC12809  Prunus subcordata H. P. Chandler 1900-3-24 Contra Costa Briones Hills Region of Mount Diablo Comment
  JEPS111736  Pseudognaphalium beneolens D. G. Kelch 2004-9-2 04 .345 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Steep road-cut. Alhambra Road. South of Green St. 3 Comment
  CDA42365  Pseudognaphalium californicum D. G. Kelch, Vince Guise 2012-7-26 12 .232 Contra Costa El Sobrante; Circle Dr. 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
  UC1584688  Pseudognaphalium thermale Jerry Powell Jul 14 1987-Jul 30 1987 1505 Contra Costa Point Molate Beach Point Molate Beach (chaparral and grassy meadow on bluffs above Bay edge) Comment
  SEINET3875499  Pseudotsuga menziesii James K. Detling 1963-3-21 40 Contra Costa Near Glorietta School, Orinda.; 0 30 Comment
  UC1745623  Psilocarphus brevissimus var. brevissimus Annetta M. Carter 1951-5-13 3055 Contra Costa 3.3 mi. S of Byron. Comment
  CAS-BOT-BC361831  Psilocarphus oregonus J. H. Thomas 1953-4-25 3000 Contra Costa 2 miles SW of Brentwood Comment
  CDA29229  Psilocarphus tenellus D. G. Kelch 2005-5-13 05 .272-D Contra Costa Carquinez Strait; Above and west of Edwards Canyon, nr Crockett. Comment
  CHSC116615  Psilocarphus tenellus Lowell Ahart; Josephine Guardino 2016-4-19 20795 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
  JEPS40518  Psilocarphus tenellus W. L. Jepson 1922-5-11 9635 Contra Costa n Berkeley Hills; North Berkeley Hills Comment
  UC694157  Psilocarphus tenellus Herbert L. Mason 1932-4-15 6926 Contra Costa summit of Road Moraga to Lafayette Comment
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Oct 6 2006
  RSA600819  Psoralea physodes Joseph A. Ewan 1934-4-8 8752 Contra Costa Mt. Diablo: Marsh Creek. 243 Comment
  POM278390  Ptelea baldwinii subsp. crenulata Lyman D. Benson 1931-3-18 2668 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  POM138974  Ptelea baldwinii subsp. crenulata M. S. Baker 1904-6-22 s.n. Contra Costa Mt. Diablo above Walkers. Comment
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Mar 6 2011
  CAS-BOT-BC148627  Ptelea crenulata Alice Eastwood 1915-5-30 4440 Contra Costa Mount Diablo Comment
  CAS-BOT-BC148634  Ptelea crenulata Rimo Bacigalupi 1926-4-30 1354 Contra Costa Near summit of Mt. Diablo Comment
  CAS-BOT-BC148639  Ptelea crenulata W. L. Jepson 1918-6-5 7603 a Contra Costa Mt. Diablo, Donner Canyon Comment
  JEPS40166  Ptelea crenulata H. L. Mason 1928-3-31 Contra Costa Mt. Diablo Comment
  UC1277976  Ptelea crenulata B. Crampton 1957-7-9 4273 Contra Costa 2-3 mi nw Martinez (slopes above the Carquinez Straits) Comment
  UC1614255  Ptelea crenulata Charles M. Belshaw 1935-6-10 696 Contra Costa Morgan Territory Rd. Comment
  UC692585  Ptelea crenulata Mary L. Bowerman 1935-6-1 3099 Contra Costa gully e Mitchell-Pine divide; Mount Diablo 975 Comment
  UC85434  Ptelea crenulata Katharine Brandegee 1907-6-16 Contra Costa hills back of Antioch Comment
  UCR17982  Ptelea crenulata Dr. H. de Forest 1930-4-6 s.n. Contra Costa San Francisco Bay Region, SE of Nortonville, SW of Antioch, east of Concord 274 Comment
  CAS-BOT-BC148620  Ptelea crenulata Ethel Wickes 1917-6-1 s.n. Contra Costa Unspecified Comment
  CAS-BOT-BC76619  Pteridium aquilinum Mary L. Bowerman 1930-8-24 426 Contra Costa Mount Diablo - Mitchell Canyon, lower trail (west of stream) 259 Comment
  UC2043241  Pteridium aquilinum var. pubescens Barbara Ertter with David Gowen 2015-2-22 22227 Contra Costa Alder Creek below Green Ranch at road crossing, Mount Diablo SE of summit. Comment
  UC2070583  Pteridium aquilinum var. pubescens Barbara Ertter with Joanne Kerbavaz, David Gowen, Mike Park and Victoria Seidman 2004-4-22 18365 Contra Costa Alder Creek crossing on Green Ranch Road, south side of Mount Diablo summit. Comment
  JEPS57983  Pterostegia drymarioides W. L. Jepson 1923-4-22 9867 Contra Costa Mt. Diablo Comment
  UC1198069  Pterostegia drymarioides Joseph P. Tracy 1934-4-30 13191 Contra Costa near Lafayette 152 Comment
  CDA33808  Pterostegia drymarioides D. G. Kelch 2010-5-15 10 .117 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 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
  JEPS112099  Pyracantha crenatoserrata D. G. Kelch 2005-5-13 05 .246 Contra Costa Martinez. South of oil refinery along Railroad tracks in fragment of habitat 28 Comment
  UC5818  Quercus H. P. Chandler 1900-3-24 Contra Costa Orinda Prak Mount Diablo Comment
  UC1543202  Quercus Donald G. Nelson 1939-12-3 642 Contra Costa n of Clayton (hillside opposite crest of trail from old brick ruin at coal mine) Comment
  POM301006  Quercus X morehus Mary L. Bowerman 1935-10-26 3349 Contra Costa 0.1 mile by road above Silver Spring, 50 feet from road. 860 Comment
  CAS-BOT-BC45661  Quercus agrifolia Mary L. Bowerman 1933-4-22 1905 Contra Costa Curry-Cave Point trail: By water-trough, Mount Diablo 457 Comment
  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
  JEPS37717  Quercus agrifolia W. L. Jepson 1907-4-26 2648 b Contra Costa Mt. Diablo Comment
  POM210976  Quercus agrifolia Joseph A. Ewan 1933-10-15 8027 Contra Costa SW slope of Mt Diablo 1067 Comment
  UC1135337  Quercus agrifolia G. T. Nordstrom 1937-11-15 1412 Contra Costa 2.6 mi E.S.E. Round Valley 457 Comment
  UCD17437  Quercus agrifolia E. Dean; M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 659 Contra Costa California. Contra Costa County: Mount Diablo State park, along Knobcone Point Road, just east of balancing rock, upslope of road. 548 Comment
  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
  UCD45129  Quercus agrifolia John Thomas Howell 1950-7-5 26638 Contra Costa Small tree, Nortonville, Contra Costa Co. Comment
  UCSC010011  Quercus agrifolia var. agrifolia Al Keuter 2014-5-23 AK 00 -095 Contra Costa Along Wildcat Canyon Road on the northeast side of the hills behind Berkeley 168 Comment
  UC691301  Quercus berberidifolia Mary L. Bowerman 1933-5-19 2142 Contra Costa Sulphur Spring Canyon, e fork Mount Diablo 457 Comment
  UC691312  Quercus berberidifolia Mary L. Bowerman 1935-11-30 3355 Contra Costa Fossil Ridge Mount Diablo Comment
  RSA0041717  Quercus berberidifolia Mary L. Bowerman 1930-10-19 490 Contra Costa South road at Garden-of-the-Gods (Fossil Ridge). Comment
  UC1135389  Quercus chrysolepis R. W. Lundh 1933-3-13 212 Contra Costa 0.75 mi nw Pinehurst; Concord Quad. 304 Comment
  UCSB23056  Quercus chrysolepis McMinn, Howard 1922-6-2 Contra Costa Near summit of Mt. Diablo Comment
  RSA476582  Quercus douglasii Bonnie C. Templeton 1962-6-20 s.n. Contra Costa Mount Diablo Comment
  UC1748011  Quercus garryana E. Dean, M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 654 Contra Costa Fossil Ridge, just upslope of South Gate Rd., just W of Gibralter Rock, SE of Rock City Mount Diablo State Park 487 Comment
  JEPS111966  Quercus ilex D. G. Kelch 2005-5-13 05 .237 Contra Costa Martinez Martinez. South of oil refinery along Railroad tracks in fragment of habitat 28 Comment
  CDA23636  Quercus lobata D. G. Kelch 2007-10-6 7 .628 Contra Costa Carquinez Strait; Fernandez Ranch. Muir Land Trust Property 4.5 km W of Rodeo. Comment
  SEINET12034644  Quercus lobata M. T. Doutt 1930-1 81 Contra Costa Marsh Creek,6 mi E of Clayton Comment
  RSA388013  Quercus palmeri J. M. Tucker 1981-4-25 4453 -B Contra Costa Antonio Souza Ranch, SW of Byron. 309 Comment
  UCR141754  Quercus parvula var. shrevei Ellen Dean, Et al. 2000-9-13 653 Contra Costa City of El Sobrante Ridge, upslope of the terminus of Heavenly Ridge Rd., just south of junction of Heavenly Ridge Trail and Manzanita Trail, along Manzanita Trail 213 Comment
  CAS-BOT-BC104717  Quercus wislizeni Le Roy Abrams 1910-10-8 4354 Contra Costa Mt. Diablo summit 1158 Comment
  UC5707  Quercus wislizeni W. H. Brewer 1861-9-25 843 Contra Costa Mount Diablo Comment
  UC691292  Quercus wislizeni Mary L. Bowerman 1933-9-30 2448 Contra Costa e end Meridian Flat (e of Pioneer Camp); Mount Diablo Comment
  UCD47649  Quercus wislizeni var. frutescens John M. Tucker 1941-9-26 410 Contra Costa Summit of Moraga Ridge, Contra Costa County, California. Comment
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Sep 13 2011
  CAS-BOT-BC362446  Rafinesquia californica Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Val. 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-BC362445  Rafinesquia californica Brandegee No date on label s.n. Contra Costa Mt Diablo Comment
  UC691953  Ranunculus aquatilis Mary L. Bowerman 1931-4-4 662 Contra Costa pool w Turtle Rock; Mount Diablo Comment
  POM270021  Ranunculus aquatilis var. capillaceus Mary L. Bowerman 1933-3-18 1754 Contra Costa Pool W of Turtle Rock (can be seen from top of rock) covering a considerable area of the bottom of the dried up pool Comment
  JEPS112060  Ranunculus californicus D. G. Kelch 2005-4-15 05 .138 Contra Costa Rodeo Creek 100 ms west of previous site 100 Comment
  POM268431  Ranunculus californicus Lyman Benson 1931-3-18 2664 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  UC1300986  Ranunculus californicus Helen K. Sharsmith 1962-3-25 4912 Contra Costa hills between Happy Valley and Alhambra Valley; San Francisco Bay Region 304 Comment
  UC2027730  Ranunculus canus Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15505 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  POM268457A  Ranunculus canus Mary L. Bowerman 1931-3-21 587 Contra Costa Sycamore Canyon: semi shady grassy spot, alt 1100ft. Contra Costa County 335 Comment
  RSA0027697  Ranunculus canus Barbara J. Ertter, Stu Garrett 1997-3-29 15523 Contra Costa West side Mount Diablo, Burma Road above North Gate Road. Comment
  POM268449  Ranunculus canus var. laetus Lyman Benson 1935-3-16 6272 Contra Costa Mitchell Canyon near Clayton; Mt. Range: Mt. Diablo; Watershed: Walnut Creek. 244 Comment
  CDA1152  Ranunculus hebecarpus D. G. Kelch, A. G. Murdock 2005-5-1 5 .188 Contra Costa Carquinez Strait; Crockett; Edwards Canyon. Comment
  UC9445  Ranunculus hebecarpus Geol. Survey 1862-1 1049 Contra Costa Mt. Diablo; foothills Comment
  JEPS102904  Ranunculus lobbii Barbara Ertter with Mary Bowerman 1995-5-7 14035 Contra Costa pond W of Three Springs trail on NE side of mouuntain Mount Diablo 304 Comment
  SEINET9161829  Ranunculus lobbii B. Ertter, D. Gowen 2006-3-1 18665 Contra Costa Upper San Leandro Reservoir Watershed (EBMUD) S of Moraga, along SE end of Rocky Ridge Road as it drops to King Canyon Road. 180 Comment
  UCSB2072  Ranunculus occidentalis Hand, B. 1960-4-9 Contra Costa 2.9 miles from south gate on Mt. Diablo Road, Mt. Diablo. Comment
  RSA85297  Ranunculus occidentalis var. ultramontanus F. W. Peirson 1925-7-1 6171 Contra Costa Wood borders, State Line, Lake Tahoe Comment
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Feb 10 2013
  JEPS107131  Ranunculus sceleratus Barbara Ertter, Kristin Ertter 1995-7-11 14485 Contra Costa West side of Mt Diablo SW of Walnut Creek; mudflat around inlet to Pine Pond. Comment
  POM313443  Ranunculus sceleratus H. L. Mason 1937-6-21 11547 Contra Costa 0.5 mile from the S end of Borden Hwy and 1.5 miles W of Byron. Comment
  CDA23557  Raphanus sativus D. G. Kelch 2008-3-3 8 .03 Contra Costa Carquinez Strait; Crockett. Under Zampa (Carquinez) Bridge. Comment
  UC2028317  Raphanus sativus Barbara Ertter, Susan D'Alcamo 1998-6-12 16160 Contra Costa North Gate Road on west flank of Mount Diablo, dogleg in road above ranches opposite Angel Kerley trailhead. Comment
  CDA4905  Rhamnus alaternus Barbara Ertter, D. Gowen 2006-4-14 18667 Contra Costa Lime Ridge Open Space at northwest base of Mt. Diablo; north side of Ygnacio Valley Road near culvert for major draw at bend in road. 0 Comment
  SEINET13946276 Image available Rhamnus californica Charles M. Belshaw 1425 Contra Costa Sierra Nevada, Las Trampas Ridge; 400 ft alt. 122 Comment
  JEPS41994  Rhamnus californica subsp. californica W. L. Jepson 1899-10-7 13975 Contra Costa near Bald Peak (s Contra Costa County); Berkeley Comment
  SEINET12210181  Rhamnus crocea var. ilicifolia M. T. Doutt 1930-1 s.n. Contra Costa Marsh Creek Comment
  HSC101957  Rhamnus ilicifolia Nikolaus Gillen, Michelle Bihler 2014-3-20 9 Contra Costa Mount Diablo State Park. Back Creek Trail. 340 Comment
  UC1121873  Rhamnus ilicifolia R. W. Lundh 1932-8-15 127 Contra Costa 1 mi w Round Valley; Mt. Diablo Quad. 228 Comment
  UC692597  Rhamnus tomentella subsp. tomentella Mary L. Bowerman 1933-9-3 2419 Contra Costa s of Meridian-North Peak saddle; Mount Diablo Comment
  UC692599  Rhamnus tomentella subsp. tomentella Mary L. Bowerman 1933-5-21 2152 Contra Costa s of Curry Canyon (Grapevine Spring gulley, slightly above the spring); Mount Diablo Comment
  UC692576  Rhus trilobata Mary L. Bowerman 1935-5-30 3092 Contra Costa Eagle Point Ridge; Mount Diablo 350 Comment
  POM300719  Rhus trilobata var. pilosissima Mary L. Bowerman 1933-3-25 1776 Contra Costa Emmons Canyon, off Stone Valley Comment
  RSA128347  Ribes californicum Peter H. Raven 1950-3-5 1408 Contra Costa Happy Valley Road, 2.8 miles above intersection with Upper Happy Valley road. 244 Comment
  UC1127406  Ribes californicum R. W. Lundh 1932-8-25 143 Contra Costa Mt. Diablo Mt. Diablo Quadrangle Comment
  UCSB2606  Ribes californicum var. californicum Keator, Glenn 1959-7-1 Contra Costa About 2 mile above Laurel camp; on Mt. Diablo Comment
  JEPS116744  Ribes divaricatum var. pubiflorum David Gowen 2007-3-22 666 Contra Costa Huckleberry Preserve at the south end of the parking lot. Comment
  CAS-BOT-BC168917  Ribes malvaceum Mrs. E. C. Sutliffe 1920-5-30 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC168924  Ribes malvaceum John Thomas Howell 1923-11-12 243 Contra Costa Mt. Diablo Comment
  HSC45325  Ribes malvaceum J. P. Smith, J. O. Sawyer, Thomas W. Nelson 1978-2-18 9520 Contra Costa Mt. Diablo State Park, Juniper Campground along Gate Rd. Comment
  RSA0021633  Ribes malvaceum H. de Forest 1930-3-28 s.n. Contra Costa Mt. Diablo, 1 mi. from summit. Comment
  RSA0021635  Ribes malvaceum J. T. Howell 1926-3-7 1667 Contra Costa Mt. Diablo. Comment
  UC691266  Ribes menziesii Charles Fakler 1944-8-4 3897 Contra Costa Juniper Camp area Mount Diablo Comment
  UC692236  Ribes menziesii Mary L. Bowerman 1931-4-19 739 Contra Costa Deer Flat, near spring by trail at upper end of flat Mount Diablo Comment
  CAS-BOT-BC206015  Ribes menziesii Mary L. Bowerman 1931-4-19 739 Contra Costa Mount Diablo. Deer Flat Comment
  JEPS116868  Ribes menziesii David Gowen 2007-9-1 790 Contra Costa Huckleberry Regional Preserve. Along trail descending to canyon bottom near trail junction above creek. Comment
  CAS-BOT-BC209361  Ribes sanguineum var. glutinosum Peter H. Raven 1950-3-5 1399 Contra Costa Redwood Canyon 152 Comment
  CAS-BOT-BC362961  Rigiopappus leptocladus Mary L. Bowerman 1933-5-10 2061 Contra Costa Mount Diablo. Ridge at east end of, and south of, Meridian Flat 822 Comment
  CAS-BOT-BC362966  Rigiopappus leptocladus M. K. Curran 1884-5-1 36 Contra Costa Antioch Comment
  UC691502  Rigiopappus leptocladus Mary L. Bowerman 1933-5-10 2064 Contra Costa ridge below Indian Ceremonial Spring; Mount Diablo Comment
  CAS-BOT-BC362965  Rigiopappus leptocladus Brandegee No date on label s.n. Contra Costa Antioch 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
  CHSC116620  Rorippa palustris var. occidentalis Lowell Ahart; Josephine Guardino 2016-4-19 20771 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Below the high water line of Los Vaqueros Reservoir, 1.4 miles northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  UC1795617  Rosa Barbara Ertter 1993-4-2 11481 Contra Costa along railroad west of Crockett at west edge of Carquinez Straits Comment
  UC1584666  Rosa californica Jerry Powell 1990-8-29 1593 Contra Costa on riverine floodplain Antioch National Wildlife Reguge Comment
  UC1952819  Rosa californica Barbara Ertter with David Gowen 2010-11-17 20700 Contra Costa southeast part of Lime Ridge Open Space (City of Walnut Creek(, mid slope of east-facing drainage below Crystyl Ranch Trail ca 1/4 mi N of jct Paraiso Trail Comment
  UC630419  Rosa californica Paule Guiguet and Annetta Carter 1939-8-13 1450 Contra Costa se Clayton; Mount Diablo drainage, Donner Creek 152 Comment
  JEPS45678  Rosa gymnocarpa W. L. Jepson 1894-10-1 13887 Contra Costa Moraga Valley Comment
  UC691148  Rosa gymnocarpa Mary L. Bowerman 1931-5-21 887 Contra Costa Curry-Cave Point trail Mount Diablo (where streambed forks and on w fork) 441 Comment
  CAS-BOT-BC148206  Rosa spithamea Alice Eastwood 1923-5-4 11705 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC156577  Rubus ulmifolius Walter Knight; Joanne Dean 1978-8-14 3164 Contra Costa Browns Island Comment
  JEPS47707  Rubus ursinus W. L. Jepson 1943-6-8 20845 Contra Costa on ne slope Moraga Ridge (near the foot of trail that goes up the hill at n end to summit); ne slope of Moraga Ridge Comment
  UC1948959  Rubus ursinus William J. Ferlatte, L. Maynard Moe 1970-4-27 1243 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC2032842  Rubus ursinus Doran, Andrew Scott 2012-3-20 713 Contra Costa North east side of Brooks Island Comment
  JEPS75495  Rumex acetosella P. F. Yorks 1976-5-31 510 Contra Costa ca 1.4 km s Bear Creek Road (on Hampton Road in Hampton Road Natural Reserve, n of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  POM300578  Rumex acetosella Mary L. Bowerman 1935-5-18 3016 Contra Costa Road above Indian Ceremonial Spring, roadbank at hairpin turn Comment
  UC692167  Rumex conglomeratus Mary L. Bowerman 1930-8-24 420 Contra Costa Mitchell Canyon Mount Diablo Comment
  CDA22901  Rumex crispus D. G. Kelch 2006-7-14 6 .33 Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  UC692169  Rumex crispus Mary L. Bowerman 1935-5-30 3082 Contra Costa Donner Canyon stream Mount Diablo 152 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
  JEPS99968  Rumex pulcher G. Smick 2003-5-10 GAS 206 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1328158  Rumex pulcher Olive Dyer 1936-10-18 100 Contra Costa about 0.5 mi below junction Wildcat Creek and Wildcat-Orinda road; Wildcat Canyon Comment
  CDA15232  Rumex salicifolius var. crassus G. F. Hrusa, D. Crowe 1998-5-8 14361 Contra Costa Sacramento Delta; E end of Dow Chemical property at Pittsburg. Comment
  JEPS41049  Rumex salicifolius var. salicifolius Rimo Bacigalupi, and L. R. Heckard 1965-5-11 9074 Contra Costa sw of Richmond (w side of Brooks Island); San Francisco Bay, Brooks Island 6 Comment
  UC692209  Rumex salicifolius var. salicifolius Mary L. Bowerman 1935-10-26 3346 Contra Costa 2 rd mi e Mount Diablo west entrance; Mount Diablo 228 Comment
  UC2028968  Rumex transitorius Barbara Ertter with Brad Olson et al. 2000-6-2 17299 Contra Costa north side Brushy Peak Regional Preserve NE of Livermore. Comment
  JEPS21987  Rupertia physodes G. Thomas Robbins 1958-5-4 3823 Contra Costa along Pinehurst Road on slopes above Upper San Leandro Reservoir (in hills e of Oakland) 228 Comment
  UC16326  Rupertia physodes unknown 1032 Contra Costa Mount Diablo Comment
  OBI12751  Rupertia physodes G. Thomas Robbins 1958-7-6 3890 Contra Costa Along Pinehurst Rd, on slopes above Upper San Leandro Reservoir, about 1/4 mi N of Alameda Co line 229 Comment
  POM118953  Ruppia cirrhosa Edward Palmer 2673 Contra Costa Byron Hot Springs. Comment
  CDA23066  Sagina apetala D. G. Kelch, D. A. Weinstein 2008-5-5 8 .094 Contra Costa Carquinez Strait; Richmond. W Chevy s Hill. N parking lot of Hilltop Mall. Comment
  CHSC116611  Sagina apetala Lowell Ahart; Josephine Guardino 2016-4-19 20774 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  UC1795720  Sagina apetala Barbara Ertter, Chris Thayer 1995-4-25 13991 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Devil's Slide area of Sycamore Canyon, roadside thru chaparral zone. 304 Comment
  UC1818945  Sagina apetala Barbara Ertter, Mary Bowerman, Lisa Schultheis 1995-3-31 13943 Contra Costa Mount Diablo State Park, lower end of Mitchell Canyon south of Clayton, oak woodland/grassland open flat area on east side of stream not far from trail head. 182 Comment
  CDA23461  Salicornia pacifica T. C. Fuller 1965-11-24 14323 Contra Costa South side of Byron Hot Springs Road, 0.6 mile southwest of Byron-Tracy Highway, ca. 1 mile southwest of Byron. 0 Comment
  UC69370  Salix Wm. W. Mott 1905-3-1 Contra Costa n.e. corner San Pablo Ave. & McAvoy Lane Comment
  CAS-BOT-BC129909  Salix bonplandiana Alice Eastwood 1921-4-18 10305 Contra Costa Antioch 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
  CAS-BOT-BC129918  Salix bonplandiana Mary L. Bowerman 1933-4-15 1854 Contra Costa Mount Diablo - canyon south of Arroyo del Cerro Comment
  CAS-BOT-BC107875  Salix gooddingii Ira L. Wiggins 1930-4-18 4591 Contra Costa Jersey Island Comment
  CAS-BOT-BC104086  Salix hindsiana Mary L. Bowerman 1935-5-30 3080 Contra Costa By Donner Canyon stream 152 Comment
  CAS-BOT-BC104085  Salix hindsiana Mary L. Bowerman 1936-5-6 3412 a Contra Costa Mitchell Canyon 152 Comment
  JEPS111537  Salix laevigata D. G. Kelch 2005-5-6 05 .221 Contra Costa Franklin Canyon; East of Christie Road. South of Route 4. Comment
  JEPS112249  Salix laevigata A. G. Murdock 283 Contra Costa Refugio Valley 120 Comment
  POM181438  Salix laevigata I. L. Wiggins 1930-4-18 4603 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
  UC692052  Salix laevigata Mary L. Bowerman 1931-3-1 530 Contra Costa near w. entrance = N. Gate Mt. Diablo Comment
  CAS-BOT-BC125142  Salix lasiandra var. lasiandra W. W. Mott 1905-3-11 s.n. Contra Costa unspecified Comment
  CDA33974  Salix lasiolepis D. G. Kelch 2011-3-31 11 .08 Contra Costa Carquinez Region; Richmond; Hilltop Lake Park. Comment
  UC1196651  Salix lasiolepis Joseph P. Tracy 1932-9-10 10785 Contra Costa Rodeo Creek Northern Coast Ranges (on Franklin Canyon Rd.) 60 Comment
  UC692065  Salix lasiolepis Mary L. Bowerman 1935-6-21 3142 Contra Costa Arroyo del Cerro Mount Diablo (e fork) 259 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-BC129554  Salix lasiolepis var. lasiolepis Walter Knight 1965-3-1 s.n. Contra Costa Antioch dunes, by water's edge - Carquinez Straights Comment
  CAS-BOT-BC129559  Salix lasiolepis var. lasiolepis Alice Eastwood 1914-3-6 s.n. Contra Costa Redwood Canyon Comment
  CAS-BOT-BC129562  Salix lasiolepis var. lasiolepis Alice Eastwood 1914-2-24 3728 Contra Costa Antioch Comment
  UC1950181  Salsola soda Barbara Ertter with Elizabeth Neese 1988-10-15 7980 Contra Costa W of I-580 in El Cerrito, W side along Rydin Road N of Central Avenue Comment
  UC32581  Salvia carduacea Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  JEPS62658  Salvia columbariae W. L. Jepson 1922-5-23 9661 Contra Costa Mt. Diablo San Francisco Bay (vicinity of San Francisco Bay) Comment
  UC634924  Salvia columbariae H. L. Mason 1929-3-29 5121 Contra Costa Mt. Diablo 762 Comment
  UCLA70075  Salvia columbariae Lewis S. Rose 1935-5-16 35168 Contra Costa Mt. Diablo Comment
  SEINET13947331 Image available Salvia columbariae Lewis S. Rose 1935-1 35168 Contra Costa Mt. Diablo Comment
  RSA15471  Salvia mellifera Alice Eastwood, J. T. Howell 1936-4-19 s.n. Contra Costa Nortonville. Comment
  UC63772  Salvia mellifera H. M. Hall 1901-4-4 1751 Contra Costa Mt. Diablo; San Francisco Bay Region 670 Comment
  RSA0068492  Salvia mellifera Katie Gallagher, Nick Jensen 2014-4-26 182 Contra Costa Las Trampas Regional Wilderness. 365 Comment
  CAS-BOT-BC235007  Sambucus Alice Eastwood 1921-4-18 10304 Contra Costa Antioch Comment
  CAS-BOT-BC238634  Sambucus nigra subsp. caerulea Barrett Anderson 1987-4-30 3487 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  UCD150884  Sambucus nigra subsp. caerulea James A. Neilson Jr. 1972-11-9 s.n. Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 Comment
  UC1178021  Samolus parviflorus Herbert L. Mason 1955-7-14 14634 Contra Costa 1/2 mi e of Antioch Bridge Comment
  UC2027896  Samolus parviflorus Barbara Ertter 1996-9-19 15296 Contra Costa Antioch Marina, tidal edge of delta, with tule, cattails, Phragmites. Comment
  UC2062644  Sanicula bipinnatifida Barbara Ertter with Dan Norris 2001-4-8 17588 Contra Costa Lime Ridge Open Space east of Walnut Creek. Comment
  UC536009  Sanicula crassicaulis Laurence S. Jones 1934-4-8 55 Contra Costa Mount Diablo approximately 3 mi surface distance from peak Mount Diablo 609 Comment
  RSA0027881  Sanicula crassicaulis Barbara Ertter, Holly C. Forbes 1997-4-20 15563 Contra Costa North base of Mount Diablo, Eagle Peak Trail on NE side of Eagle Ridge below Twin Peaks. Comment
  UC2027911  Sanicula crassicaulis Barbara Ertter with Dan Norris 2001-4-8 17577 Contra Costa Lime Ridge Open Space east of Walnut Creek, high part of main ridge. Comment
  UCD127982  Sanicula crassicaulis P. B. Kennedy 1925-4-26 s.n. Contra Costa near Sycamore Canon Trail, Mt. Diablo. Comment
  SBBG122982  Sanicula saxatilis B. Ertter et al. 1991-4-7 9728 Contra Costa Eagle Pk on Mt Diablo Comment
  UC1949240  Sanicula tuberosa Barbara Ertter with Michelle Seidl 1992-3-14 10914 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo; along Blue Oak Trail Comment
  CDA7922  Satureja douglasii D. G. Kelch, A. G. Murdock 2005-1-16 5 .003 Contra Costa Carquinez Strait; Dutra fire road. Comment
  JEPS100052  Satureja douglasii G. Smick 2003-6-6 GAS 213 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS68967  Saxifraga californica Edward Lee 1935-3-10 1300 Contra Costa s watershed of Kirker Creek (Nortonville); , Kirker Creek Comment
  UC1745553  Scandix pecten-veneris Annetta M. Carter, Florence Dickson, Howard Custer 1939-5-30 1441 Contra Costa 0.8 mi. S of Lafayette. 121 Comment
  UC692380  Scandix pecten-veneris Mary L. Bowerman 1931-4-11 706 Contra Costa Mount Diablo, mouth of Pine Canyon Pine Canyon; Mount Diablo, Pine Canyon Comment
  UCD151158  Schedonorus arundinaceus James A. Neilson Jr. 1972-11-2 3552 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  JEPS125931  Schinus molle D. W. Taylor 2001-3-1 17609 Contra Costa 1 mile W of Pittsburg, along the abandoned tracks of the Sacramento Northern Railroad, ca 500 m W of the Pittsburg Power Plant. Comment
  UCD150918  Schinus molle James A. Neilson Jr. 1972-10-27 3620 Contra Costa Clayton, C4. Elevation estimated using Google Earth by label maker. 121 Comment
  UC2027847  Schinus molle Barbara Ertter, Mary Bowerman 1996-11-1 15401 Contra Costa North base of Mount Diablo, near Donner Canyon trailhead at end of Regency Drive. Comment
  CAS-BOT-BC7627  Schoenoplectus acutus var. occidentalis Walter Knight; Joanne Dean 1978-8-14 3185 Contra Costa Browns Island. Comment
  JEPS46490  Scirpus W. L. Jepson 1919-1-5 8201 Contra Costa Antioch San Joaquin River (on beach) Comment
  UC692193  Scirpus acutus var. occidentalis Mary L. Bowerman 1938-9-17 3715 Contra Costa by the rivulet and in the marsh Big Spring Mount Diablo, Big Spring 731 Comment
  CDA39144  Scirpus microcarpus D. G. Kelch 2003-4-13 3 .137 Contra Costa Carquinez Strait; Pinole Creek. Comment
  UC584351  Scribneria bolanderi G. L. Stebbins Jr. 1937-5-1 2112 Contra Costa 1 mi s of Summerfield (Summerfield=Somersville, at the head of Walker Canyon; due s of Antioch) Comment
  UC2027718  Scrophularia californica Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15520 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UC1713660  Scutellaria tuberosa Herbert L. Mason 1928-4-15 4342 Contra Costa top of Moraga Ridge Comment
  SEINET3153355  Scutellaria tuberosa L. S. Rose 1940-4-30 40250 Contra Costa Marsh Creek, 4 mi. E of Clayton 91 Comment
  JEPS48062  Sedum spathulifolium W. L. Jepson 1918-6-5 7610 Contra Costa summit North Peak (Mt. Diablo); , summit of North Peak 1066 Comment
  JEPS19398  Senecio flaccidus var. douglasii G. Thomas Robbins 1940-5-19 326 Contra Costa e of Antioch (hills bordering San Joaquin River); San Joaquin River Comment
  JEPS79322  Senecio flaccidus var. douglasii Edward Lee with Annetta Carter 1935-8-17 1634 Contra Costa Antioch Comment
  UC1584828  Senecio hydrophilus Jerry Powell 1990-8-29 1588 Contra Costa Antioch National Wildlife Refuge Comment
  JEPS37435  Senecio sylvaticus W. L. Jepson 1943-4-24 20762 Contra Costa vicinity San Francisco Bay; Oakland Hills, Moraga Ridge Comment
  UC335828  Senecio triangularis unknown Contra Costa near Mt. Diablo; near Mt. Diablo Comment
Read comments
Feb 11 2013
  UC407393  Senecio vulgaris Ira L. Wiggins 1930-4-18 4597 Contra Costa n end Jersey Island; n end Jersey Island Comment
  CAS-BOT-BC364552  Senecio vulgaris Alice Eastwood 1923-5-4 11725 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC364553  Senecio vulgaris Ira L. Wiggins 1930-4-18 4597 Contra Costa Levee, n. end of Jersey Island Comment
  CAS-BOT-BC80262  Sequoia sempervirens H. M. Hall 1902-3-4 2700 Contra Costa San Leandro Creek Comment
  SEINET3876310 Image available Sequoia sempervirens Michael R. Tansey 1963-2-21 12 Contra Costa North end of Jewel Lake, Tilden Regional Park.; 0 152 Comment
  UC1555371  Sidalcea malviflora subsp. laciniata Jerry Powell 1988-4-1 1530 Contra Costa Point Molate Richmond (in w Richmond) Comment
  UC692533  Silene verecunda subsp. platyota Mary L. Bowerman 1935-6-1 3108 Contra Costa largest ridge between Ransom Point ridge and Mitchell-Pine divide (Mount Diablo); , btw Ransom Point ridge and Mitchell-Pine div 1066 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
  CAS-BOT-BC364795  Silybum marianum Walter Knight; Bob Doyle; Wayne Roderick; Steve Edwards 1978-9-19 3252 Contra Costa Browns Island. South Landing Comment
  SEINET10760843  Silybum marianum Bonnie C. Templeton 1962-6-24 Templeton s.n. Contra Costa on the road to Mt. Diablo 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
  UCD115424  Sinapis arvensis R. Koch 1996-4-20 2 Contra Costa city of Danville, free space by Mt. Diablo State Park. 121 Comment
  JEPS100078  Sisymbrium officinale G. Smick 2003-5-30 GAS 207 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC75281  Sisymbrium officinale Mary L. Bowerman 1935-5-1 2939 Contra Costa Mount Diablo. West road 2 miles from entrance, across the creek. Comment
  OBI70547  Sisymbrium orientale D. G. Kelch 2008-3-30 8 .027 Contra Costa Carquinez Strait: Crockets under Zampa (Carquinez) bridge 14 Comment
  CDA21559  Sisyrinchium bellum D. G. Kelch, D. A. Weinstein 2008-4-25 8 .075 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
  CDA39388  Smilacina stellata A. G. Murdock 2004-4-3 246 Contra Costa Vaca Canyon. Comment
  JEPS112504  Smilacina stellata A. G. Murdock 2004-4-30 246 Contra Costa Vaca Canyon 165 Comment
  UC2032802 Image available Solanum furcatum Doran, Andrew Scott 2012-3-20 672 Contra Costa Brooks island loading dock, North side of island. Comment
  CAS-BOT-BC83606  Solanum umbelliferum J. McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  JEPS99576  Solanum umbelliferum Mary Bowerman 1975-5-11 Contra Costa Mount Diablo, Back Creek. Comment
  POM280561  Solanum umbelliferum Lyman D. Benson 1931-3-18 2658 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  UC691749  Solanum umbelliferum Mary L. Bowerman 1930-6-5 258 Contra Costa Mount Diablo, West Road = North Road, 5.8 mi from entrance Mount Diablo 457 Comment
  UCR142470  Solanum umbelliferum Dr. H. de Forest 1930-4-6 s.n. Contra Costa San Francisco Bay Region, SE of Nortonville, SW of Antioch, east of Concord 274 Comment
  UCD127020  Solanum umbelliferum Laurence S. Jones 1934-4-8 s.n. Contra Costa Mount Diablo. 609 Comment
  UC1051129  Solanum xanti N. Floy Bracelin 1945-7-22 2583 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC364902  Solidago velutina subsp. californica John Thomas Howell 1925-10-20 1525 Contra Costa Moraga Ridge Comment
  UC691808  Solidago velutina subsp. californica Mary L. Bowerman 1930-8-24 434 Contra Costa Mitchell Canyon , Mitchell Canyon (Mount Diablo) Comment
  UCD163099  Solidago velutina subsp. californica Robert E. Preston 2014-5-28 2966 Contra Costa Morgan Territory, 3 mi SW of Los Vaqueros Reservoir. 290 Comment
  UC1999894  Solidago velutina subsp. californica J. C. Semple, B. A. Suripto, T. Ahmed 1990-8-16 9338 Contra Costa E of Berkeley, Berkeley Hills, Grizzly Peak Rd., disturbed area in formley [formerly] wooded slope N of road. Comment
  SEINET11807909  Sonchus asper W. Knight, Knight, I. 1988-1 6219 Contra Costa Suisun Marsh Comment
  RSA760658  Sonchus oleraceus William J. Ferlatte, L. Maynard Moe 1970-4-27 1222 Contra Costa San Francisco Bay, Red Rock Island. Comment
  UCD92659  Sorghum halepense Beecher Crampton 1970-3-10 8540 Contra Costa Vasco Road S of Brentwood. Comment
  RSA720843  Spartina densiflora Barbara Ertter, Richard K. Rabeler 1994-6-18 12835 Contra Costa Point Pinole Regional Shoreline at north end of Richmond, beach on north side Whittell Marsh Comment
  UC1795711  Spartium junceum Barbara Ertter, Gary Schoolcraft 1996-4-7 14582 Contra Costa Molate Beach Park on San Francisco Bay north of San Rafael Bridge; entrance to Western Drive from I-580 east of toll station on San Rafael-Richmond Bridge, road bank Comment
  UCD99169  Spergula arvensis P. B. Kennedy 1914-3-15 4658 Contra Costa Sunset Cemetary. Comment
  HSC4243  Spergularia macrotheca Greg Bos 1963-3-9 30 Contra Costa Point Isabel, Richmond 3 Comment
  UCSB61645  Spergularia macrotheca Ertter, Barbara; Jokerst, Jim; Magney, David 1989-4-5 Contra Costa SE Contra Costa CO.; alkali sink W and adjacent to Clifton Court Forebay, ca. 15 air miles SW of Stockton, T1S R3E Sec. 24 SESW, near sea level Comment
  CAS-BOT-BC390279  Spergularia macrotheca var. longistyla Alice Eastwood 1923-4-28 11667 Contra Costa Byron Springs Comment
  JEPS111787  Spergularia macrotheca var. macrotheca D. G. Kelch 2005-3-24 05 .48 Contra Costa Point Pinole Pt. Pinole near wharf 2 Comment
  CDA15279  Spergularia marina G. F. Hrusa, D. Crowe, R. York 1998-7-17 14717 Contra Costa Sacramento Delta; E end of Dow Chemical property at Pittsburg. Comment
  UCD150899  Spergularia marina James A. Neilson Jr. 1972-10-22 3504 Contra Costa Walnut Creek drainage, near mouth of Walnut Creek. Elevation estimated using Google Earth by label maker. 0 Comment
  UC2027786  Spergularia marina Barbara Ertter with John Ginochio and Mary Bowerman 2001-5-8 17630 Contra Costa Northwest flank of Mount Diablo, tributary of Galindo Creek on south side of knoll SW of Mount Zion. Comment
  CAS-BOT-BC213199  Sphaeralcea Paul F. Covel 1936-5-17 259 Contra Costa South of summit Mt. Diablo. Comment
  JEPS21817  Stachys ajugoides J. Robison 1958-5-17 68 Contra Costa Vacant lot on 6th St. Albany 7 Comment
  UC416579  Stachys ajugoides var. rigida Ivar Tidestrom June, 1895 Contra Costa Crockett Comment
  RSA762305  Stachys ajugoides var. rigida William J. Ferlatte, L. M. Moe 1970-4-27 1224 Contra Costa San Francisco Bay, Red Rock Island. Comment
  POM300999  Stachys bullata Mary L. Bowerman 1933-5-18 2119 Contra Costa Mount Diablo, Blackberry Spring. Comment
  JEPS99581  Stachys pycnantha Mary Bowerman 1993-10-22 Contra Costa Mount Diablo, Pine Pond. 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
  RSA0068488  Stachys rigida var. quercetorum Katie Gallagher, Nick Jensen 2014-4-26 186 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  UC71938  Stebbinsoseris heterocarpa J. Burtt Davy 1895-4-7 960 Contra Costa Antioch Comment
  JEPS100087  Stellaria media S. O'Neil 2003-2-18 SEO 2 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC606744  Stellaria nitens Edward Lee 1936-4-19 1969 Contra Costa ne corner Red Rock; San Francisco Bay Comment
  UC2028153  Stellaria pallida Barbara Ertter 1998-4-4 15958 Contra Costa Shell Ridge Open Space northwest of Mount Diablo. Comment
  UC692301  Stellaria pallida Mary L. Bowerman 1935-4-19 2873 Contra Costa about 7 mi from by rd Mount Diablo w entrance (= North Gate) (ridge w of power poles, above the road junction); Mount Diablo 670 Comment
  SEINET238945 Image available Stenotaphrum secundatum Beecher Crampton 1966-10-18 7817 Contra Costa Kensington Berkeley Hills Blake Garden UC Berkeley Department of landscape architecture. Comment
  CAS-BOT-BC375205  Stephanomeria elata John Thomas Howell 1925-11-1 1544 Contra Costa Moraga Ridge, Oakland Hills Comment
  UCD136361  Stephanomeria exigua subsp. coronaria L. D. Gottlieb 1969-11-2 6959 Contra Costa east of Antioch. West of Kaiser Gypsum Plant at Minaker and Wilbur Roads. Comment
  CAS-BOT-BC375767  Stephanomeria virgata Lewis S. Rose 1938-10-28 38308 Contra Costa Marsh Creek, 6 mi. e. of Clayton 152 Comment
  RSA0029779  Stephanomeria virgata subsp. pleurocarpa Barbara Ertter 2000-7-29 17439 Contra Costa Donner Basin on north side of Mount Diablo, opening on lower end of Middle Trail between Meridian Ridge Road and first stream crossing. 366 Comment
  UC2029082  Stephanomeria virgata subsp. pleurocarpa Barbara Ertter 2000-7-29 17439 Contra Costa Donner Basin on north side of Mount Diablo, opening on lower end of Middle Trail between Meridian Ridge Road and first stream crossing. Comment
  SEINET3130532  Stipa pulchra J. B. Davy 1900-3-24 6519 Contra Costa Point Richmond Comment
  UC2029191  Stipa pulchra Barbara Ertter with Brad Olson et al. 2000-6-2 17298 Contra Costa North side Brushy Peak Regional Preserve NE of Livermore Comment
  SEINET10926660  Stipa pulchra Frank W. Gould 1941-4-20 Gould 1281 Contra Costa Coastal bluffs near Richmond, associated with Melica californica. Comment
  CAS-BOT-BC87098  Streptanthus glandulosus subsp. glandulosus John Thomas Howell 1942-7-19 17048 Contra Costa Northeast of Deer Flat, Mount Diablo. Comment
  CAS-BOT-BC87099  Streptanthus glandulosus subsp. glandulosus W. W. Carruth 1903-5-10 s.n. Contra Costa Mount Diablo. Comment
  UC592151  Streptanthus hispidus H. L. Mason 1929-3-29 5120 Contra Costa Mount Diablo 762 Comment
  UCD116027  Streptanthus hispidus Botany 102 Student 1974-4-13 s.n. Contra Costa Marsh Creek Road, near trail Ride ASSO, north peak of Mt. Diablo. 762 Comment
  UC1950410  Stuckenia filiformis subsp. alpina Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10715 Contra Costa Brown Island N of Pittsburg near confluence of Sacramento & San Joaquin rivers opposite Pittsburg Marina; at W end of island Comment
  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
  RSA755536  Stuckenia pectinata Barbara Ertter, Lynne Hosley 1991-9-22 10824 Contra Costa Lafayette Reservoir in hills SW of Lafayette 137 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
  JEPS116497  Stylocline gnaphaloides J. Greenhouse with John Game 2008-5-26 5128 Contra Costa Lime Ridge Open Space, Paradise Canyon Trail above subdivision Comment
  JEPS65176  Stylomecon heterophylla L. R. Heckard 1971-4-15 2491 Contra Costa ca 1/2 mi e Patterson Pass; e of Patterson Pass 457 Comment
  UC692106  Stylomecon heterophylla Mary L. Bowerman 1932-5-6 1410 Contra Costa w bank Mitchell Canyon Mount Diablo; , w bank Mitchell Canyon 182 Comment
  RSA446230  Stylomecon heterophylla H. de Forest 1930-4-6 s.n. Contra Costa [No location data on label] Comment
  SD58497  Suaeda californica John H. Weiler 1961-4-9 6173 Contra Costa On the east side of the road, 3.0 miles south of Byron. Comment
  CDA9506  Suaeda nigra D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .233 Contra Costa Byron Airport. Comment
  CAS-BOT-BC269562  Symphoricarpos albus var. laevigatus V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Val. Comment
  UC1119922  Symphoricarpos albus var. laevigatus N. French 1933-3-13 33 Contra Costa above Shelton School, San Pablo; San Francisco Quad. 91 Comment
  CAS-BOT-BC269559  Symphoricarpos albus var. laevigatus Wosnessensky 1841-4-1 s.n. Contra Costa Unspecified Comment
  CAS-BOT-BC269563  Symphoricarpos albus var. laevigatus Volney Rattan 1884-6-1 s.n. Contra Costa Unspecified Comment
  UC691622  Symphoricarpos mollis Mary L. Bowerman 1933-5-21 2159 Contra Costa ridge between two forks Sulphur Springs Canyon; Mount Diablo 426 Comment
  CAS-BOT-BC97697  Symphyotrichum chilense R. E. Frenkel 1964-6-20 591 Contra Costa on Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  UC1422530  Symphyotrichum lentum Alice Q. Howard and W. R. Powell 1977-6-1 38 Contra Costa Antioch Dunes, within PG&E-owned strip under eastern power line Comment
  UC1594169  Symphyotrichum lentum Jerry Powell 1991-8-15 1613 Contra Costa Antioch National Wildlife Refuge Comment
  UCD150914  Symphyotrichum lentum James A. Neilson Jr. 1972-10-22 s.n. Contra Costa Walnut Creek drainage, west and south of railroad and leves. Elevation estimated using Google Earth by label maker. 3 Comment
  UC2013057  Symphyotrichum subulatum Barbara Ertter with CNPS 1990-9-16 9645 Contra Costa NE Contra Costa Co.: Bethel Island NE of Brentwood, E end of Gateway Road at W edge of Franks Tract State Recreation Area. Comment
  UCD159500  Symphyotrichum subulatum var. parviflorum D. S. Park 2010-9-11 250 -1 Contra Costa Waterfront Rd. Growing along roadside. Disturbed. Wet. 5 Comment
  CDA33665  Tamarix parviflora Wil Schaub 2011-4-12 PDR# 1645187 Contra Costa Brentwood: Camino Diablo & Vasco Road. 0 Comment
  UCD96956  Tetragonia tetragonoides G. Thomas Robbins 1958-7-19 3906 Contra Costa Pt. Orient, San Francisco Bay, about 3/4 mile south of Pt. San Pablo, Potrero San Pablo, Richmond. Comment
  UC9708  Thalictrum fendleri var. polycarpum J. Burtt Davy 1895-4-13 1010 Contra Costa near San Pablo Creek Comment
  JEPS75487  Thysanocarpus curvipes P. F. Yorks 1974-4-19 135 Contra Costa on Hampton Road ca 1.8 km s of Bear Creek Road in Hampton Road Natural Reserve (n of Briones Reservoir); , n of Briones Reservoir 180 Comment
  UC11035  Thysanocarpus curvipes T. S. Brandegee 1890-1 Contra Costa Antioch Comment
  CAS-BOT-BC88254  Thysanocarpus curvipes John Thomas Howell 1934-4-8 11821 Contra Costa Marsh Creek Road southwest of Brentwood. Comment
  RSA0069377  Thysanocarpus curvipes Katie Gallagher, Nick Jensen 2014-4-26 212 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  SEINET3840810  Thysanocarpus curvipes Unknown 2004-3-13 4 .041 Contra Costa Road along Marsh Creek road, about one and a half miles west of Dee}some information missing{ 107 Comment
  RSA0039448  Thysanocarpus curvipes var. curvipes Howard de Forest 1930-4-6 s.n. Contra Costa Unspecified. Comment
  UC691139  Thysanocarpus laciniatus Mary L. Bowerman 1932-3-27 1138 Contra Costa Mount Diablo , below Mitchell Rock (below Mitchell Rock) Comment
  UC10983  Thysanocarpus laciniatus W. H. Brewer 1862-5-14 1097 Contra Costa dry rocky spurs Mount Diablo Comment
  JEPS99480  Torilis arvensis Mary Bowerman 1975-6-7 Contra Costa Mount Diablo. Big Spring. Comment
  UC1818959  Torilis arvensis Barbara Ertter, Kristin Ertter 1995-7-11 14480 Contra Costa Pine Creek on West side of Mt. Diablo southwest of Walnut Creek; partial shade of oak forest, road along Pine Cr. in Diablo Foothills Regional Park 152 Comment
  JEPS111629  Torilis nodosa D. G. Kelch 2005-5-1 05 .201 Contra Costa Crockett - Edwards Canyon 100 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
  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
  CAS-BOT-BC377055  Tragopogon dubius R. E. Frenkel 1964-4-29 466 Contra Costa On the south side of Ignacio Valley Road, 0.6 mile west of the junction with Marsh Creek Road 182 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
  CDA4740  Tribulus terrestris T. C. Fuller 1961-9-13 6999 Contra Costa South of Highway 4, 0.1 miles west of Antioch Bridge Road, 2 miles west of Oakley. 0 Comment
  SEINET13948210 Image available Trichostema lanceolatum Lewis S. Rose 1953-1 53095 Contra Costa Mt. Diablo, W slope; 1600 ft alt. 488 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
  UC137789  Trifolium albopurpureum var. dichotomum C. F. Baker 1903-4-27 2797 Contra Costa Byron Comment
  UC165535  Trifolium albopurpureum var. dichotomum J. Burtt Davy 1895-1 949 Contra Costa Antioch Comment
  JEPS107124  Trifolium albopurpureum var. olivaceum Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14225 Contra Costa Mt. Diablo southeast of Walnut Creek, serpentine knoll ca 1/2 air-mile north of Curry Point. 487 Comment
  UC148550  Trifolium albopurpureum var. olivaceum Katharine Brandegee 1909-4-24 Contra Costa Antioch Comment
  UC16604  Trifolium albopurpureum var. olivaceum W. H. Brewer 1862-5-19 1111 Contra Costa n Kirker Pass Comment
  UC2070467  Trifolium albopurpureum var. olivaceum Barbara Ertter 2000-5-14 17002 Contra Costa Lower Donner Canyon on north side of Mount Diablo, junction of Donner Canyon, Cardinet Oaks and Meridian Ridge Roads. Comment
  UCSC008382  Trifolium amplectens Randall Morgan 1996-4-2 2851 Contra Costa North East side of Byron, Highway 17, North of Byron Hot Springs Road Comment
  JEPS65769  Trifolium barbigerum W. L. Jepson 1917-4-14 6866 Contra Costa Oakland Hills, near Redwood Peak Comment
Read comments
Dec 17 2008
  CDA29497  Trifolium bifidum D. G. Kelch, Troy MacGregor 2009-5-1 9 .273 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  CDA27905  Trifolium bifidum var. decipiens D. G. Kelch, A. G. Murdock 2005-5-1 5 .199 Contra Costa Carquinez Strait Region; Crockett - Edwards Canyon. Lower Edwards Canyon. Comment
  JEPS100110  Trifolium bifidum var. decipiens G. Smick 2003-4-22 GAS 143 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1607691  Trifolium bifidum var. decipiens Barbara Ertter, Lynne Hosley 1993-4-17 11510 Contra Costa ca 10 air mi ne Livermore (hills in lee of Mt. Diablo, along Blue Oak Trail); Morgan Territiry Comment
  JEPS127104  Trifolium campestre Lowell Ahart, Josephine Guardino 2016-4-19 20755 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
  UC1795879  Trifolium campestre Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14640 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; packed ground of trailside. Comment
  CDA29796  Trifolium ciliolatum D. G. Kelch, Troy MacGregor 2009-5-1 9 .265 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  JEPS65796  Trifolium ciliolatum W. L. Jepson 1925-4-26 10689 Contra Costa Black Hills Mt. Diablo Comment
  UC630976  Trifolium depauperatum var. amplectens unknown 1928-4-19 10043 Contra Costa near Golf Links; Byron Hot Springs Comment
  UC2028085  Trifolium depauperatum var. depauperatum Barbara Ertter, Tony Morosco 1998-4-12 15982 Contra Costa Base of Mount Olympia on north side of Mount Diablo south side of lower end of Olympia Trail. Comment
  CHSC22680  Trifolium depauperatum var. truncatum Robert A. Schlising 1962-4-7 2147 Contra Costa Along roads near Antioch Reservoir. Comment
  UC1586032  Trifolium depauperatum var. truncatum Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8134 Contra Costa w and adjscent to Clifton Court Forebay (ca 15 air mi sw of Stockton); ; SESW 0 Comment
  SD37270  Trifolium dichotomum Mc Callum 1933-4-25 2140 Contra Costa Low hills near Tassajara Comment
  UC1618358  Trifolium dubium Barbara Ertter, Chris Thayer 1993-5-7 11713 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
  UC1607614  Trifolium fragiferum Barbara Ertter, Brad Olson 1993-8-8 12199 Contra Costa sw San Ramon; Bishop Ranch Regional Open Space Comment
  JEPS65864  Trifolium fucatum W. L. Jepson 1896-5-29 13720 Contra Costa Wild Cat Creek Berkeley Comment
  UC16539  Trifolium fucatum J. Burtt Davy 1900-3-24 6532 Contra Costa Stege Comment
  UC555454  Trifolium fucatum H. L. Mason 1929-3-31 5143 Contra Costa Briones Valley Comment
  UC1541574  Trifolium fucatum H. E. and S. T. Parks 1930-4-1 542 Contra Costa along hwy (in ditches); San Ramone Comment
  UC419042  Trifolium fucatum H. E. and S. T. Parks 1930-4-1 542 Contra Costa along hwy (in ditches); San Ramone Comment
  CHSC116604  Trifolium glomeratum Lowell Ahart; Josephine Guardino 2016-4-19 20758 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 1.8 miles (air) northwest of Los VaquerosReservoir Marina, 2.1 miles (air) southwest of Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  JEPS127042  Trifolium glomeratum Lowell Ahart, Josephine Guardino 2016-4-19 20758 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  UC16548  Trifolium gracilentum Harley P. Chandler 1901-4-5 957 Contra Costa Mount Diablo Comment
  UC33592  Trifolium gracilentum J. P. Tracy 1900-3-24 622 Contra Costa Point Richmond 15 Comment
  UC692683  Trifolium gracilentum Mary L. Bowerman 1933-5-9 2046 Contra Costa Stage Rd Mount Diablo 853 Comment
  RSA61570  Trifolium gracilentum J. T. Howell 1933-5-14 11249 Contra Costa Hills east of St. Marys college Comment
  JEPS100106  Trifolium microcephalum G. Smick 2003-5-1 GAS 164 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC692250  Trifolium microcephalum Mary L. Bowerman 1935-4-12 2814 Contra Costa 2 mi from entrance (= Northgate) (w rd (=n rd)); Mount Diablo 259 Comment
  POM300695  Trifolium microcephalum Mary L. Bowerman 1935-4-19 2871 Contra Costa Road about 7 miles from North Gate, ridge west of the power poles, above the road junction. 701 Comment
  UC692254  Trifolium microdon Mary L. Bowerman 1935-5-1 2933 Contra Costa 2 mi from entrance (West Road (=North Road)); Mount Diablo, West Road (=North Road) 182 Comment
  UC1606302  Trifolium microdon Barbara Ertter, Chris Thayer 1993-5-7 11711 Contra Costa ca 1/2 mi n Vollmer (=Bald) Peak (east of Tilden Park, grazing land on lower slopes of Wildcat Canyon Rd); East Bay Municipal Utilities District land Comment
  UC692641  Trifolium obtusiflorum Mary L. Bowerman 1935-5-25 3077 Contra Costa Rhine Canyon Mount Diablo (side of gully containing streamlet) 914 Comment
  UC630888  Trifolium oliganthum Mrs. K. Brandegee may 1907 Contra Costa Antioch Comment
  SEINET10577416  Trifolium tridentatum var. tridentatum A. Arthur Heller 1908-4-16 Heller s.n. Contra Costa Sand hills east of Antioch 23 Comment
  UC165546  Trifolium variegatum var. melananthum Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  CDA28080  Trifolium willdenovii D. G. Kelch, A. G. Murdock 2005-4-24 5 .167 Contra Costa Carquinez Strait Region; Franklin Canyon. Collier Hill. West Carbon. Comment
  OBI12643  Trifolium willdenovii W. L. Jepson 1925-4-26 10691 Contra Costa Mt. Diablo Comment
  SEINET7096740  Trifolium willdenovii A. G. Vestal 1955-4-1 3586 Contra Costa Ca. 1.9 miles west of Byron on the Camino Diablo Road. NAD27, 37? deg. 51' 45ao, -121?_ 40' 26ao (converted to WGS84 decimal degrees) Comment
  UC55885  Trifolium willdenovii H. M. Hall 1901-3-22 1705 Contra Costa Martinez Comment
  UC650439  Trifolium willdenovii Ira L. Wiggins 1930-4-17 4575 Contra Costa 1/4 mi s Byron Comment
  UC725897  Trifolium willdenovii A. A. Heller 1938-4-9 15017 Contra Costa 3 mi sw Antioch (from type region) Comment
  UCD109510  Trifolium willdenovii A. A. Beetle 1939-4-12 1770 Contra Costa Pinole. Comment
  UC508  Triglochin striata Jos. Burtt Davy 1900-6-7 6676 Contra Costa Martinez Comment
  JEPS111766  Triodanis biflora Christopher Thayer 1995-6-5 Contra Costa Pinole Peak 304 Comment
  JEPS11780  Triodanis biflora Mary L. Bowerman 1933-5-18 2130 Contra Costa w Blackberry Spring (Mount Diablo); , w of Blackberry Spring Comment
  JEPS100142  Triphysaria pusilla G. Smick 2003-3-25 GAS 76 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS23260  Triphysaria pusilla G. Thomas Robbins 1959-4-26 4004 Contra Costa about 1/4 mi n San Pablo Oil Tank Farm (open slope about 1 mi ne of Giant) 15 Comment
  UC691571  Triphysaria pusilla Mary L. Bowerman 1931-3-29 615 Contra Costa foot of Cave Point Ridge Mount Diablo; , foot of Cave Point Ridge Comment
  UC2070608  Trisetum canescens Barbara Ertter with Debra Trock 2005-6-25 18609 Contra Costa North end Redwood Regional Park, Stream Trail along Redwood Creek. Comment
  JEPS112499  Triteleia hyacinthina D. G. Kelch 2004-4-26 04 .145 Contra Costa Pt. Pinole. 1 Comment
  CDA9474  Triteleia laxa D. G. Kelch 2004-3-13 4 .039 Contra Costa East Bay; Corner of Deer Valley Rd. and Briones Valley Rd. Comment
  UC130929  Triteleia laxa Katharine Brandegee 1909-4-24 Contra Costa Antioch Comment
  CAS-BOT-BC522175  Triteleia laxa John Thomas Howell 1931-5-12 6468 Contra Costa Oakland Hills Comment
  POM203716  Triteleia laxa J. T. Howell 1931-5-12 6468 Contra Costa Oakland Hills Comment
  SD39092  Triteleia laxa Mc Callum 1933-4-24 3700 Contra Costa Adobe field near wlnut Creek. Comment
  SEINET3889041  Triteleia laxa John Thomas Howell 1931-5-12 6468 Contra Costa Oakland Hills.; 0 Comment
  JEPS17167  Tropidocarpum capparideum S. Galen Smith and Donald Stone 1957-3-30 2867 Contra Costa 3 mi se Byron (far western end of field just n of the Holey Road); Byron Road 5 Comment
  UC191739  Tropidocarpum capparideum Edward Lee Greene 1888-3-24 Contra Costa Byron Spring Comment
  SEINET8727865 Image available Tropidocarpum capparideum Robert F. Hoover 1936-1 806 Contra Costa Byron Hot Springs. Comment
  CAS-BOT-BC67401  Tropidocarpum gracile Alice Eastwood 1914-2-24 3742 Contra Costa Antioch. Comment
  CAS-BOT-BC67407  Tropidocarpum gracile Lewis S. Rose 1934-3-21 34066 Contra Costa 6 miles east of Clayton. Comment
  UC136962  Tropidocarpum gracile K. Brandegee April, 1889 Contra Costa Antioch Comment
  UC14397  Tropidocarpum gracile Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  UC673302  Tropidocarpum gracile H. L. Mason 1932-3-20 6842 Contra Costa Antioch sand hills Comment
  JEPS123184  Tropidocarpum gracile David Gowen 2009-5-12 1021 Contra Costa East of Las Trampas Ridge on Del Amigo Trail, near saddle northeast of junction with Sulpher Springs Trail. Comment
  CDA1419  Typha angustifolia D. G. Kelch, Andrew G. Murdock 2003-8-13 3 .105 Contra Costa Carquinez Strait Region; Martinez Marsh. Comment
  JEPS111911  Typha angustifolia Dean G. Kelch and Andrew G. Murdock 2004-5-28 AGM 281 Contra Costa Refugio Valley. Comment
  JEPS111913  Typha angustifolia Dean G. Kelch and Andrew G. Murdock 2004-5-28 AGM 298 Contra Costa Luzon. Comment
  UC2028448  Typha angustifolia Barbara Ertter with Chris Thayer 1996-10-25 15386 Contra Costa West side of Mount Diablo, North Gate Road 0.4 road miles below junction, Jill Creek 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
  JEPS111915  Ulmus glabra Dean G. Kelch and Andrew G. Murdock 2004-9-2 DGK 04 .341 Contra Costa Martinez (Ozol) CA East of Ozol. Comment
  UC2031410  Ulmus minor Barbara Ertter 1993-4-2 11479 Contra Costa Carquinez Regional Park below Vista Road west of Crockett Comment
  CDA24512  Umbellularia californica D. G. Kelch 2007-3-24 7 .082 Contra Costa Carquinez Strait; Ozol; between Port Costa and Martinez, near old brick quarry. Comment
  SEINET5339125  Umbellularia californica P. Del Monte 1976-3-28 s.n. Contra Costa Morgan territory road, 1 mile North of Curry Creek Park. 122 Comment
  UC691782  Uropappus lindleyi Mary L. Bowerman 1933-5-18 2137 Contra Costa Mount Diablo Comment
  RSA0024903  Urtica Peter Rubtzoff 1968-9-18 5963 Contra Costa North Gate Road, ca. 5 miles northwest of Mt. Diablo State Park north entrance. Comment
  JEPS111920  Urtica dioica subsp. holosericea Dean G. Kelch and Andrew G. Murdock 2004-5-7 DGK 04 .197 Contra Costa Canada del Cierbo. 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
  UC1050826  Verbascum N. Floy Bracelin 1941-6-1 1346 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC2029171  Verbena lasiostachys var. scabrida Barbara Ertter 2000-7-16 17409 Contra Costa Pine Creek on WNW base of Mount Diablo. Comment
  UC1819009  Verbena lasiostachys var. scabrida Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14231 Contra Costa South side Mount Diablo, Sheepherder Springs complex 1/2 mile north of Curry Point, wet ground in grassland. 487 Comment
  POM181452  Veronica peregrina subsp. xalapensis I. L. Wiggins 1930-4-17 4581 Contra Costa 1/4 mi. S. of Byron. Comment
  UC1050160  Viburnum cylindricum N. Floy Bracelin 1943-10-24 2368 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1005836  Viburnum suspensum N. Floy Bracelin 1945-5-27 2852 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CDA23061  Vicia americana D. G. Kelch, D. A. Weinstein 2008-4-25 8 .086 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
  CDA23620  Vicia americana D. G. Kelch, D. A. Weinstein 2008-4-15 8 .041 Contra Costa Carquinez Strait; S Port Costa along Mckewen Rd. Comment
  JEPS77007  Vicia gigantea Robert M. Lloyd 1963-3-17 2135 Contra Costa 0.5 mi e intersection of Grizzly Peak Road and Skyline Drive (on Skyline Drive (across from 7090 Skyline), Huckleberry trail); Huckleberry trail Comment
  UC1300884  Vicia sativa subsp. nigra Helen K. Sharsmith 1962-4-18 4958 Contra Costa Reliez Valley Road; San Francisco Bay Region 152 Comment
  CDA4394  Vicia sativa subsp. sativa D. G. Kelch, A. G. Murdock 2005-3-11 5 .068 Contra Costa Carquinez Strait Region; Chevy s Hill. Comment
  UCD108957  Vicia sativa subsp. sativa G. Thomas Robbins 1959-4-18 3988 Contra Costa On slope overlooking San Pablo Bay, about 1/2 mile east of Pt. San Pablo, Richmond. 7 Comment
  CHSC116652  Vicia villosa subsp. varia Lowell Ahart; Josephine Guardino 2016-4-19 20764 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. In the middle of the dirt road, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  JEPS127049  Vicia villosa subsp. varia Lowell Ahart, Josephine Guardino 2016-4-19 20764 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  JEPS99507  Vicia villosa subsp. varia Mary Bowerman 1978-5-4 Contra Costa Mount Diablo, Nort Gate Rd. 3/4 above Arroyo del Cerro. Also lower down. Comment
  UC1795794  Vicia villosa subsp. varia Barbara Ertter, Mary Bowerman 1995-6-11 14250 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, at west base Mt. Diablo.; annual grassland near Indian Valley School entrance, clay soil (planted Clarkia also present). 91 Comment
  JEPS100123  Vinca major G. Smick 2003-3-27 GAS 92 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1121599  Viola pedunculata H. S. Yates 1936-3-14 5355 Contra Costa 1/2 mi n of mouth of Perkins Canyon 228 Comment
  CDA9681  Viola rupestris D. G. Kelch 2007-2-28 7 .079 Contra Costa East Bay.; East Bay Regional Park, Wildcat Creek. Comment
  UC1789166  Vitis Barbara Ertter 1995-4-27 14020 Contra Costa walkway along ditch between Valley Vista and Arbolado Park, Walnut Creek, ca 300 ft; naturalized on concrete ditchbank, twigs red, flowers green, fragrant. Comment
  CAS-BOT-BC203036  Vitis californica Bonnie Templeton 1962-6-10 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC203042  Vitis californica Mary L. Bowerman 1930-6-28 382 Contra Costa Mount Diablo. Canyon Nook 670 Comment
  UC691245  Vulpia bromoides Mary L. Bowerman 1933-5-3 1984 a Contra Costa Indian Ceremonial Canyon; Mount Diablo 731 Comment
  POM300707  Vulpia bromoides Mary L. Bowerman 1935-5-16 3008 Contra Costa Behind Gabriel-Hinks' (east side of North Peak) 290 Comment
  SEINET5578414  Vulpia bromoides J. Hamai 1985-1 s.n. Contra Costa Russell Reserve. Comment
  UC691236  Vulpia microstachys var. ciliata Mary L. Bowerman 1935-5-22 3050 Contra Costa saddle w Twin Peaks (Eagle Point ridge); Mount Diablo Comment
  CAS-BOT-BC184189  Vulpia microstachys var. pauciflora Mary L. Bowerman 1935-5-22 3049 Contra Costa Eagle Point ridge, canyon at north end which heads into saddle west of Twin Peaks Comment
  CAS-BOT-BC184194  Vulpia microstachys var. pauciflora Peter H. Raven; G. Thomas Robbins 1956-4-28 9041 Contra Costa Near Arlington Ave. and Kennelworth [Kenilworth] Drive, just south of El Cerrito Comment
  UCD94437  Vulpia myuros A. A. Beetle 1941-3-28 1722 Contra Costa near Orinda. Comment
  UCD94880  Vulpia myuros P. B. Kennedy 1923-4-19 s.n. Contra Costa between San Pablo Avenue and Fleming. Comment
  CAS-BOT-BC184712  Vulpia myuros subsp. megalura Mary L. Bowerman 1935-4-22 2884 Contra Costa Ridge west of Pioneer Road (west of Stage Road): East face of grassy ridge 853 Comment
  CAS-BOT-BC184713  Vulpia myuros subsp. megalura Mary L. Bowerman 1932-4-27 1380 Contra Costa Oyster Ridge, south face, canyon west of Riggs Canyon 335 Comment
  UC1024727  Vulpia myuros var. hirsuta Leo Whitney 1935-4-21 3067 Contra Costa 2 mi e Corral Hollow Comment
  UC1024730  Vulpia myuros var. hirsuta Leo Whitney 1935-4-21 3063 Contra Costa Corral Hollow Comment
  UC579855  Vulpia myuros var. hirsuta Annetta Carter 1936-4-19 1118 Contra Costa e side Red Rock; San Francisco Bay Comment
  UC606725  Vulpia myuros var. hirsuta Edward Lee 1936-4-19 1979 B Contra Costa e shore Red Rock; San Francisco Bay Comment
  UC692292  Vulpia myuros var. hirsuta Mary L. Bowerman 1933-5-2 1945 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  CAS-BOT-BC131762  Washingtonia filifera Walter Knight; Lawrence R. Heckard; Bert Johnson 1978-9-28 3277 Contra Costa Browns Island, from near Pt. Emmett at old bordello site Comment
  UC36761  Wyethia angustifolia Maclean Contra Costa Mt. Diablo Comment
  UC485127  Wyethia angustifolia Ira J. Condit 1913-4-19 Contra Costa Richmond Annex Comment
  CAS-BOT-BC383369  Wyethia helenioides John Thomas Howell 1933-5-14 11288 Contra Costa Hills east of St. Mary's College Comment
  CAS-BOT-BC383370  Wyethia helenioides John Thomas Howell 1933-5-14 11287 Contra Costa Hills east of St. Mary's College Comment
  JEPS100164  Wyethia helenioides S. O'Neil 2003-3-11 SEO 14 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS75540  Wyethia helenioides P. F. Yorks 1974-5-22 122 Contra Costa ca 1.8 km s Bear Creek Road (on Hampton Road, n of Briones Reservoir); Hampton Road Natural Reserve 200 Comment
  RSA72631  Wyethia helenioides F. W. Peirson 1926-8-10 6626 Contra Costa Tunnel Road to Walnut Creek. Comment
  UC691367  Xanthium spinosum Mary L. Bowerman 1930-8-31 439 Contra Costa roadside near south entrance; Mount Diablo Comment
  UC691384  Xanthium spinosum Mary L. Bowerman 1932-11-25 1668 Contra Costa at head of spring Mount Diablo, Silver Spring Comment
  JEPS37541  Xanthium strumarium W. L. Jepson 1923-10-4 10213 Contra Costa Sherman Island ferry Antioch Shore, Sherman Island ferry Comment
  CDA30961  Yabea microcarpa D. G. Kelch, Abigail Moore 2010-4-7 10 .096-B Contra Costa Mt. Diablo. Upper Mitchell Canyon. Comment
Read comments
May 4 2013
  UC1606356  Zannichellia palustris Barbara Ertter, Lynne Hosley 1991-9-22 10826 Contra Costa Lafayette Reservoir in hills sw Lafayette (se side of Lafayette Reservoir); se side of Lafayette Reservoir 137 Comment
  JEPS49758  Zigadenus fremontii Rimo Bacigalupi, and Alice Howard, and Paul Hutchison 1967-3-29 9218 Contra Costa 0.5 mi se head of Bolinger Canyon (in Bolinger Creek drainage, w slope of Las Trampas Ridge); Las Trampas Ridge, Bolinger Creek 390 Comment
  JEPS62255  Zigadenus fremontii W. L. Jepson 1908-4-4 3004 Contra Costa w branch San Pablo Creek Comment
  UC4110  Zigadenus fremontii Harley P. Chandler 1901-4-5 978 Contra Costa Mount Diablo Comment
  UC765923  Zigadenus fremontii Robert F. Hoover 1939-4-13 4018 Contra Costa head (West Branch) Markley Canyon; head Markley Canyon Comment



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