Search Results — 2000 specimen records retrieved (1384 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UC1719700  Acacia baileyana Barbara Ertter 1997-1-5 15430 Contra Costa Ygnacio Valley Road across Lime Ridge, S-facing roadcut Comment
  UC1719702  Acacia longifolia Barbara Ertter with Richard Rabeler 1994-6-2 12821 Contra Costa edge of San Francisco Bay on overgrown point south of Central Avenue at Point Isabel (subsequently cleared as part of new Eastshore State Park). Comment
  SD45087  Acacia verticillata W. W. Jones 1927-4-5 Contra Costa Crockett Comment
  UC762183  Acer macrophyllum R. F. Hoover 1938-5-4 3345 Contra Costa peak e Tassajero Creek (canyon slope); Peak e of Tassajero Creek (canyon slope) Comment
  LA210535  Acer negundo var. californicum Annetta M. Carter; 1937-3-28 1227 Contra Costa Moraga Valley, 2.5 mi N of Moraga. 182 Comment
  UC588153  Acer negundo var. interior Annetta Carter 1937-3-28 1227 Contra Costa 2 1/2 mi n Moraga (Moraga Valley); , Creek bank, n of Moraga 182 Comment
  CAS-BOT-BC21713  Achillea millefolium Mary L. Bowerman 1930-6-3 238 Contra Costa Mount Diablo: West road 1.9 miles from entrance Comment
  UC579853  Achillea millefolium Annetta Carter 1936-4-19 1116 Contra Costa hollow e side of island Red Rock; San Francisco Bay Comment
  UC691726  Achillea millefolium Mary L. Bowerman 1931-4-25 751 Contra Costa 2 mi by road from Mt. Diablo West Entrance; Mount Diablo Comment
  SEINET10614426  Achillea millefolium John T. Middleton 1936-4-18 Middleton 142 Contra Costa Comment
  SEINET242919 Image available Achnatherum diegoense Mary E. Barkworth, Surrey W. L. Jacobs; Betty Jacob 2003-4-7 2003 /7 Contra Costa Tilden Reigonal Park, east of Berkeley Comment
  UCD164888  Achyrachaena mollis Henry House 1995-4-30 1995- 7 Contra Costa About 1 km west of Walnut Blvd., ca. 0.5 km south of Marsh Creek Rd. 60 Comment
  HSC4584  Achyrachaena mollis Greg Bos 1963-4-28 98 Contra Costa Pinole hills overlooking San Pablo Bay 46 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
  SEINET4089806  Adenostoma fasciculatum B. C. Templeton 1962-1 sn Contra Costa Mount Diablo. Comment
  UC1127729  Adenostoma fasciculatum R. W. Lundh 1932-9-9 163 Contra Costa 1/2 mi. s.e. Nortonville; Mt. Diablo Quad. 381 Comment
  UC721201  Adenostoma fasciculatum Rogers McVaugh 1941-7-29 6169 Contra Costa 5 mi. e. Berkeley (Moraga Ridge); Moraga Ridge 304 Comment
  SEINET7728119  Adiantum emarginatum C. C. Parry 1883-1 Contra Costa Mt. Diablo Comment
  UC42032  Adiantum jordanii Ivar Tidestrom vi, 1895 Contra Costa canyon near Crockett Comment
  CHSC22658  Aesculus californica Robert A. Schlising 1965-1-24 2740 Contra Costa North of Briones Reservoir along Hampton Road; 1.1 mi S of Jct with Garcia Ranch Road. Comment
  LA205596  Aesculus californica J. A. Ewan; 1935-2-3 9082 Contra Costa Wildcat Creek 0.25 mi. below Orinda road bridge Comment
  UC2061505  Ageratina adenophora Dean G. Kelch 2016-5-27 16 .132 Contra Costa Miller-Knox Hill. Comment
  JEPS36319  Agoseris grandiflora var. grandiflora W. L. Jepson 1943-6-8 20846 Contra Costa midway of ridge Moraga Ridge Comment
  JEPS36323  Agoseris grandiflora var. grandiflora W. L. Jepson 1922-5-26 9674 Contra Costa grassy hills North Berkeley Hills Comment
  UC1818937  Agoseris heterophylla Barbara Ertter, Mary Bowerman et al. 1995-5-7 14049 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, grassy flat, roadside vegetation, clay substrate. Comment
  UC29360  Agoseris heterophylla var. heterophylla F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  UC691431  Agoseris retrorsa Mary L. Bowerman 1931-4-25 783 Contra Costa summit Meridian Peak; Mount Diablo Comment
  SEINET10590760  Agrostis avenacea Barbara J. Ertter, B. Olson 1994-5-7 Ertter 12748 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay. Local in puddle on graded flat. Comment
  UC697196  Agrostis hallii Mary L. Bowerman 1944-6-19 3895 Contra Costa in eastern corner of triangle formed by roads to upper Rock City Camp (Fossil Ridge, Mount Diablo); Mount Diablo Comment
  UC2028399  Agrostis hallii Barbara Ertter with Dan Norris 1998-6-18 16217 Contra Costa Rock City area on south side of Mount Diablo, W Fossil Ridge Trail Comment
  UC2028526  Agrostis hallii Barbara Ertter 1997-11-1 15883 Contra Costa South side Mount Diablo, end of spur road east of Knobcone Point, below powerline crossing at head of Alamo Creek drainage. Comment
  CDA9763  Agrostis pallens D. G. Kelch 2002-5-24 2 .019 Contra Costa Carquinez Strait; Crockett. On hill S of San Pablo Ave ~0.4 miles W of Carquinez Bridge. Comment
  SEINET5538014  Agrostis stolonifera J. Hamai 1985-1 s.n. Contra Costa Russell Reserve. Comment
  UC692383  Agrostis viridis Mary L. Bowerman 1936-8-17 3527 Contra Costa Sulphur Spring Mount Diablo, Pine Canyon 137 Comment
  UCD55707  Aira caryophyllea Beecher Crampton 1955-4-11 2471 Contra Costa Richmond, vacant lots of 41st St. and Bissell. Comment
  UC2028078  Aira caryophyllea var. caryophyllea Barbara Ertter, Tony Morosco 1998-4-12 15992 Contra Costa Base of Mount Olympia on north side of Mount Diablo, base of quarry NE of Olympia Trail. Comment
  UC692097  Alisma plantago-aquatica Mary L. Bowerman 1935-9-13 3331 Contra Costa scattered over the center Chase Pond; Mount Diablo Comment
  CAS-BOT-BC226  Allium breweri William Henry Brewer 1862-5-7 1060 Contra Costa Summit of Monte Diablo [Mount Diablo] Comment
  POM181433  Allium crispum I. L. Wiggins 1930-4-17 4565 Contra Costa Near Mountain House, Altamont Pass. Comment
  UC13800  Allium serra Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  UC692028  Allium serra Mary L. Bowerman 1933-4-26 1932 Contra Costa Perkins Canyon branch between the main ridge of North Peak and the ridge to its south Mount Diablo, Perkins Canyon 518 Comment
  UC766759  Allium serra R. F. Hoover 1936-3-19 808 Contra Costa Pittsburg Comment
  UC1789187  Allium triquetrum Barbara Ertter 2000-5-20 17027 Contra Costa Sibley Volcanic Regional Preserve, Oakland Hills, accessible trail on ridge behind interpretative center. Locally established in understory of eucalyptus-oak-pine flores; onion-scented, flowers white. Comment
  SEINET3151680  Allocarya stipitata L. S. Rose 1936-4-24 36155 Contra Costa 8 miles S of Antioch 30 Comment
  SEINET7881741 Image available Allocarya stipitata H. S. Reed 1940-1 355 Contra Costa Marsh Creek road, Mount Diablo, altitude 800 feet. 244 Comment
  UCD118009  Allophyllum divaricatum P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UCD118010  Allophyllum divaricatum Clifford Low 1978-5-19 3 Contra Costa Back Canyon Creek, east of Eagle Peak on Mount Diablo. 304 Comment
  UC1093922  Alnus rhombifolia Herbert L. Mason 1924-11-23 1159 Contra Costa Las Trampas Ridge; via Cashion Comment
  UC1135145  Alnus rhombifolia R. W. Lundh 1932-9-22 170 Contra Costa Sycamore Creek Mt. Diablo Quadrangle 228 Comment
  UC13501  Alnus rhombifolia W. C. Blasdale 1891-3-7 Contra Costa San Pablo Comment
  UC2031467  Alnus rhombifolia Barbara Ertter with Brad Olson, Dianne Lake, Lynne Hosley and A. Youngson 1991-10-20 10861 Contra Costa Dow Wetlands Preserve, just W of Antioch marina Comment
  UC2027977  Amaranthus albus Barbara Ertter with Mary Bowerman 1996-11-1 15397 Contra Costa North base of Mount Diablo, downstream from Mitchell Canyon parking lot. Comment
  UC691918  Amaranthus californicus Mary L. Bowerman 1933-9-9 2431 Contra Costa Frog Pond Mount Diablo Comment
  POM300589  Amaranthus californicus Mary L. Bowerman 1935-9-13 3343 Contra Costa Frog Pond Comment
  JEPS85854  Amaranthus deflexus Barbara Ertter with Elizabeth Neese 1988-10-15 7973 Contra Costa w I-580 (jct of Central Ave and Rydin Road, El Cerrito); El Cerrito Comment
  SEINET3840793  Amaranthus deflexus Dean G. Kelch, Andrew G. Murdock 2005-6-27 5 .394 Contra Costa Carquinez Strait, Sixth street at Lillian Street in vegetable garden, Crockett, common garden weed 33 Comment
  RSA666352  Ambrosia chamissonis var. chamissonis Barbara Ertter, Brad Olson 1993-10-30 12288 Contra Costa Northeast of Rodeo, across railroad tracks from San Pablo Avenue Comment
  CAS-BOT-BC222222  Amsinckia John Thomas Howell 1934-4-8 11813 Contra Costa 7 miles from Clayton on road to Livermore Comment
  CAS-BOT-BC222223  Amsinckia Alice Eastwood; John Thomas Howell 1936-4-19 2143 Contra Costa At Antioch Comment
  CAS-BOT-BC222224  Amsinckia Alice Eastwood; John Thomas Howell 1936-4-19 2143 Contra Costa At Antioch Comment
  CAS-BOT-BC222231  Amsinckia John Thomas Howell 1933-3-29 10916 Contra Costa Pittsburg Comment
  CAS-BOT-BC222236  Amsinckia John Thomas Howell 1933-3-29 10911 Contra Costa Nortonville hills 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
  UC881400  Amsinckia intermedia Lewis S. Rose 1941-3-13 41032 Contra Costa 3 mi s Byron 15 Comment
  RSA0068499  Amsinckia intermedia Katie Gallagher, Nick Jensen 2014-4-26 175 Contra Costa Las Trampas Regional Wilderness. 365 Comment
  RSA0090980  Amsinckia intermedia Robert F. Hoover 1938-4-20 3179 Contra Costa Between San Pablo and Reservoir. Comment
  JEPS20865  Amsinckia lunaris R. F. Hoover 1938-4-20 3178 Contra Costa lower end San Pablo Reservoir 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
  RSA125789  Amsinckia lunaris Francia Chisaki, Peter Kamb 1952-5-4 2275 Contra Costa Bear Creek Road, 1.5 miles east of Orinda-Richmond road (leaving this road ca. 1 mile north of Orinda) Comment
  RSA0029365  Amsinckia lunaris Barbara Ertter, Chris Thayer 1993-5-7 11707 Contra Costa Ca 0.5 mile N of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land E of Tilden Park. 457 Comment
  JEPS18322  Amsinckia lycopsoides Rimo Bacigalupi with F. Chisaki 1957-3-27 5757 Contra Costa 3/4 mi w Antioch (along Somersville road between Borden Highway and S. P. Ry) 19 Comment
  UCD119723  Amsinckia lycopsoides R. Bacigalupi; Francia Chisaki 1957-3-27 910 Contra Costa Rolling plain along Somersville road between Borden Highway and Southern Pacific Railway, 0.75 mile west of Antioch. 19 Comment
  UC2028213  Amsinckia menziesii Barbara Ertter with Richard K. Brummitt 1998-5-13 16133 Contra Costa Summit Road on Mount Diablo, base of rock outcrop/roadcut above Juniper Camp. Comment
  JEPS108530  Amsinckia menziesii var. menziesii Lisa Schultheis with Kevin Hintsa 1995-4-25 67 -95 Contra Costa Mount Diablo. Wall Point Road, where an arroyo crosses the trail, near the Macedo Ranch parking lot Comment
  CAS-BOT-BC26823  Amsinckia peltigera Alice Eastwood 1921-4-18 10311 a Contra Costa Antioch Comment
  UCD146714  Anagallis arvensis G. F. Hrusa; D. Crowe 1998-5-8 14394 Contra Costa Sacramento-San Joaquin River Delta. East end of Dow Chemical property at Pittsburg. 15 Comment
  UCD117436  Anagallis arvensis Jennifer Davies 1982-4-11 5 Contra Costa 1 mile NW of South Checking Station on South Gate Road, Mt. Diablo. 487 Comment
  CAS-BOT-BC45254  Ancistrocarphus filagineus Brandegee s.n. Contra Costa Antioch 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
  JEPS108327  Androsace elongata subsp. acuta David Gowen, Mike Parks 2005-3-6 177 Contra Costa Mt. Diablo State Park. North-facing slope not far from summit of Oyster Point. Comment
  UC2062460  Anemopsis californica Barbara Ertter with David Gowen and Mike Park 2004-6-13 18374 Contra Costa Black Diamond Mines Regional Preserve, just downstream from old homestead on west side of Old Homestead Loop. Comment
  POM161362  Anemopsis californica R. C. Bacigalupi 1926-4-30 1347 Contra Costa About 3 miles E of Walnut Creek on Mt. Diablo Rd. Comment
  UC691887  Angelica californica Mary L. Bowerman 1935-3-16 2740 Contra Costa Mount Diablo, e fork of Arroyo del Cerro Arroyo del Cerro; Mount Diablo, Arroyo del Cerro 274 Comment
  NY67842  Antirrhinum elmeri A. D. E. Elmer 06 1903 4809 Contra Costa Mt. Diablo Comment
  RSA0008239  Antirrhinum elmeri A. D. E. Elmer 1903-06 4809 Contra Costa Mount Diablo Comment
  SEINET2446344  Antirrhinum elmeri A. D. E. Elmer 4809 Contra Costa Mount Diablo. Comment
  UC691600  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Mary L. Bowerman 1932-9-3 1535 Contra Costa Muir Area; Mount Diablo Comment
  CAS-BOT-BC447664  Aphanes arvensis Mary L. Bowerman 1931-3-29 620 Contra Costa Mount Diablo, East Cave Point ridge, Comment
  JEPS112070  Aphanes occidentalis A. G. Murdock 2004-3-5 212 Contra Costa Sky Ranch At top of ridge along road 250 Comment
  JEPS112078  Aphanes occidentalis D. G. Kelch 2003-4-3 03 .347 Contra Costa Cummings Skyway South of Cummings Skyway and Crockett Blvd 134 Comment
  JEPS45617  Aphanes occidentalis W. L. Jepson 1931-4-5 15720 Contra Costa Nortonville 396 Comment
  UC1789149  Aphanes occidentalis Barbara Ertter with David Gowen and Mike Park 2004-4-13 18347 Contra Costa Black Diamond Mines Regional Park south of Pittsburg, ca 1 km due east of Sidney Flat headquarters Comment
  SEINET13943445 Image available Apium graveolens Joseph Andorfer Ewan 1936-1 9714 Contra Costa Wildcat Creek Comment
  UC691848  Apocynum cannabinum Mary L. Bowerman 1931-5-28 905 Contra Costa gully to s. at e. end of Castle Rock Farm (Pine Canyon); Mt. Diablo, Pine Canyon Comment
  UC1795686  Aquilegia formosa Barbara Ertter, Mary L. Bowerman 1994-6-19 12840 Contra Costa Mt. Diablo State Park east of Walnut Creek; Muir Picnic Area on Summit Road, Comment
  POM203649  Aquilegia formosa var. truncata J. T. Howell 1933-5-14 11253 Contra Costa Hills east of St. Mary's college Comment
  CAS-BOT-BC17272  Arabis blepharophylla Paul F. Covel 1938-5-8 1514 Contra Costa Summit Mount Diablo. Comment
  CAS-BOT-BC128690  Arbutus menziesii H. E. McMinn 1925-1-1 s.n. Contra Costa Head of San Leandro Creek Comment
  UCD166545  Arbutus menziesii Dylan O. Burge 2016-2-18 2046 Contra Costa Huckleberry Ridge. 390 Comment
  UC692044  Arceuthobium campylopodum Mary L. Bowerman 1931-10-31 1064 Contra Costa south Rd near junction Mount Diablo Comment
  CAS-BOT-BC410130  Arceuthobium occidentale J Kuijt 1958-1-22 s.n. Contra Costa Mt. Diablo Comment
  SEINET11977748  Arctostaphylos andersonii var. auriculata L. S. Rose 1932-1 32110 Contra Costa Nortonville Comment
  CAS-BOT-BC24109  Arctostaphylos auriculata Alice Eastwood; John Thomas Howell 1936-4-19 2130 Contra Costa Nortonville Comment
  CAS-BOT-BC24110  Arctostaphylos auriculata Rimo Bacigalupi 1924-2-17 s.n. Contra Costa Lower slopes of Mt. Diablo on old wagon road to summit from Mt. Diablo Country Club (Blue K Hills) 457 Comment
  CAS-BOT-BC24115  Arctostaphylos auriculata Mary L. Bowerman 1932-9-5 1546 Contra Costa Inner Black Hills: Near fire trail which runs south from large spur (on Meridian) heading into Sycamore Canyon. Comment
  CAS-BOT-BC24122  Arctostaphylos auriculata Gary D. Wallace 1974-12-26 1372 Contra Costa Mt. Diaablo St. Pk. off Summit Dr. along a ridge E of Curry Point; SE of Balancing Rock. 530 Comment
  JEPS98842  Arctostaphylos auriculata John S. Bryant 1967-3-19 Contra Costa Nortonville, 1 mi hike from Gianochio Bros. gate, old coal mining area at upper end of canyon Comment
  RSA0036101  Arctostaphylos auriculata Lewis S. Rose 1949-3-6 49004 Contra Costa Mt. Diablo, above Rock City. 518 Comment
  RSA164647  Arctostaphylos auriculata Percy C. Everett 1963-11-19 24549 Contra Costa Mt Diablo. 457 Comment
  RSA202870  Arctostaphylos auriculata Edward Lee 1936-1-12 1713 Contra Costa Immediately south of Nortonvillep Comment
Read comments
Aug 25 2011
  RSA388864  Arctostaphylos auriculata H. A. Stout, TC Wainwright 1980-3-27 2 Contra Costa Mallory Ranch, ca. 1 mile east of Morgan Territory Road. 609 Comment
  UC549566  Arctostaphylos auriculata J. E. Adams 1934-3-19 673 Contra Costa Mt. Diablo Comment
  UC614738  Arctostaphylos auriculata Beryl O. Schreiber 1934-2-22 943 Contra Costa Devil's Slide Canyon Mount Diablo Comment
  UC697792  Arctostaphylos auriculata Mary L. Bowerman 1932-9-5 1546 Contra Costa near fire trail which runs s from large spur (on meridian) heading into Sycamore Canyon; Mount Diablo, Inner Black Hills Comment
  UCD50262  Arctostaphylos auriculata Roman Gankin 1968-11-14 1311 Contra Costa Ca. 300 yds. above road at Somersville. Comment
  UCD50265  Arctostaphylos auriculata Roman Gankin 1968-11-14 1308 Contra Costa Ca. 300 yds. above road at Somersville. Comment
  CDA33795  Arctostaphylos crustacea D. G. Kelch 2011-2-4 11 .017 Contra Costa Bear Creek Road west of Orinda near of Briones Park. 0 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
  SEINET11989691  Arctostaphylos crustacea N. Havlik, Knight, W. 1982-1 4550 Contra Costa Briones Regional Park adjacent to Russell Tree Farm 305 Comment
  CAS-BOT-BC24859  Arctostaphylos glandulosa subsp. cushingiana Walter Knight; Irja Knight 1980-3-16 3716 Contra Costa Sobrante Ridge between Heavenly Ridge Lane and Castro Ranch Road, El Sobrante. Comment
  JEPS38918  Arctostaphylos glandulosa subsp. glandulosa Mary L. Bowerman 1932-3-20 1123 Contra Costa ne fork of canyon Mount Diablo, Sycamore Canyon (toward top of middle ridge) Comment
  UC692229  Arctostaphylos glandulosa subsp. glandulosa Mary L. Bowerman 1933-4-22 1900 Contra Costa w Cave Point; Mount Diablo, Inner Black Hills Comment
  CAS-BOT-BC24661  Arctostaphylos glauca Charles M. Belshaw 1936-10-26 2720 Contra Costa 3/4 mi. ne. of North peak, Mt. Diablo. 609 Comment
  UC692232  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 (=Fossil Ridge) Comment
  UC692235  Arctostaphylos glauca Mary L. Bowerman 1933-3-11 1749 Contra Costa in gully nw park entrance (outer s face of ridge); Mount Diablo, Rock City Ridge (Fossil Ridge) Comment
  RSA0002606  Arctostaphylos laevigata Alice Eastwood 1922-3-17 11082 Contra Costa Mt. Diablo Comment
  SEINET11977789  Arctostaphylos manzanita M. T. Doutt 1930-1 85 Contra Costa Marsh Creek Comment
  UCSB22281  Arctostaphylos manzanita McMinn, H. 1936-4-11 Contra Costa Mt. Diablo; head of Sycamore Canyon Comment
  CAS-BOT-BC38878  Arctostaphylos manzanita subsp. laevigata Rimo Bacigalupi 1924-2-17 s.n. Contra Costa Lower slopes of Mt. Diablo on old wagon road to summit from Mt. Diablo Country Club (Black Hills) 457 Comment
  CAS-BOT-BC38881  Arctostaphylos manzanita subsp. laevigata J. T. Howell 1926-3-7 1665 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC38925  Arctostaphylos manzanita subsp. laevigata L. R. Abrams 1910-10-8 4345 Contra Costa Mt. Diablo 548 Comment
  OBI14657  Arctostaphylos manzanita subsp. laevigata H. E. McMinn, E. Maino 1931-4-11 136 Contra Costa Mt Diablo Comment
  RSA122397  Arctostaphylos manzanita subsp. laevigata R. C. Wilson 1935-3-13 132 Contra Costa 1.5 mi W of Cave Pt. 563 Comment
  RSA122398  Arctostaphylos manzanita subsp. laevigata R. C. Wilson 1935-2-26 104 Contra Costa 1 mile SW of Nortonville. 396 Comment
  UC1121504  Arctostaphylos manzanita subsp. laevigata H. A. Jensen 1938-10-27 452 Contra Costa head of Curry Canyon Mt. Diablo Quadrangle Comment
  UC549604  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-10-6 675 Contra Costa Mt. Diablo Comment
  UC692221  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1931-3-1 540 Contra Costa e meridian (w part of chaparral); Mount Diablo, Inner Black Hills Comment
  UCD51727  Arctostaphylos manzanita subsp. laevigata R. C. Wilson 1935-2-26 112 Contra Costa 3/4 mile southwest of Somersville. 411 Comment
  RSA0034774  Arctostaphylos manzanita subsp. laevigata Lewis S. Rose 1934-2-28 34040 Contra Costa 8 mi. NE Danville. S. slope Mt. Diablo. Comment
  UC2027944  Arctostaphylos manzanita subsp. laevigata Barbara Ertter 1997-9-7 15797 Contra Costa North side Mount Diablo, Donner Canyon, Middle Trail below Falls Trail junction. Comment
  CAS-BOT-BC24386  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1936-8-19 3530 Contra Costa Mount Diablo, Pine Canyon mouth, most northerly west-heading streamlet shown on topographic map (now dry). 167 Comment
  CAS-BOT-BC42234  Arctostaphylos pallida Walter Knight; Irja Knight 1980-3-16 3714 Contra Costa Sobrante Ridge between Heavenly Ridge Land and Castro Ranch Road. Comment
  JEPS97533  Arctostaphylos pallida R. D. Stone 1981-1-31 335 Contra Costa Huckleberry Trail Oakland Hills, near Alameda-Contra-Costa county line (NE of intersection of Skyline Blvd. and Snake Rd.) Comment
  JEPS48823  Arctostaphylos tomentosa subsp. crustacea H. M. Wheeler 1944-1-16 27506 Contra Costa Moraga Ridge Oakland Hills Comment
  JEPS98840  Arctostaphylos tomentosa subsp. crustacea Walter Knight, Irja Knight, James B. Roof, R. Gankin, R. Hildreth 1964-10-7 Contra Costa near Rock City; Mt. Diablo Comment
  RSA164648  Arctostaphylos tomentosa subsp. crustacea P. C. Everett 1963-11-19 11774 Contra Costa Mt. Diablo. 457 Comment
  UC1120106  Arctostaphylos tomentosa subsp. crustacea R. W. Lundh 1933-3-1 204 Contra Costa 1/2 mi n Pinehurst; Concord Quadrangle Comment
  UC1120189  Arctostaphylos tomentosa subsp. crustacea R. W. Lundh 1932-8-27 151 Contra Costa 1 1/2 mi w Cave Point; Mount Diablo Quadrangle 502 Comment
  UC549463  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 630 Contra Costa Moraga Ridge Comment
  UC909851  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 635 Contra Costa Moraga Ridge Comment
  UC909879  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 631 Contra Costa Moraga Ridge Comment
  UCD51869  Arctostaphylos tomentosa subsp. crustacea Edward Lee 1935-12-28 1703 Contra Costa western end of Las Trampas Ridge, Contra Costa County 426 Comment
  UCD129096  Argyranthemum foeniculaceum G. Thomas Robbins; John Weiler 1959-5-23 4022 Contra Costa portion of Brooks Island (its northwestern extension), San Francisco Bay. Comment
  UC1606406  Aristolochia californica Barbara Ertter 1993-4-2 11476 Contra Costa below Vista Rd. w. of Crockett (midslope, Carquinez Regional Park); Carquinez Regional Park Comment
  UCD137820  Aristolochia californica G. L. Stebbins Jr.; P. Dansereau, C. McMillan, K. Naravan 1949-3-26 3967 Contra Costa 0.5 mile northeast of Saint Mary's College, Moraga. Comment
  CAS-BOT-BC17386  Armoracia rusticana Walter Knight; Joanne Dean 1978-8-14 3121 Contra Costa Browns Island. Comment
  RSA755498  Artemisia biennis Barbara Ertter, Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 19800 Contra Costa Mudflats at upper (south) end of San Pablo Dam Reservoir northwest or Orinda 90 Comment
  JEPS111689  Artemisia californica D. G. Kelch 2004-3-5 04 .7 Contra Costa Martinez - Rankin Park 56 Comment
  UC449651  Artemisia californica W. P. Taylor 1912-7-16 Contra Costa 2 mi sw Walnut Creek 121 Comment
  UC691664  Artemisia californica Mary L. Bowerman 1930-9-27 469 Contra Costa 2 mi from entrance to Mt. Diablo State Park (North Road); Mount Diablo Comment
  SEINET14199582 Image available Artemisia californica W. L. Jepson 1898-10-14 s.n. Contra Costa Berkeley, Berkeley Hills Comment
  CAS-BOT-BC90298  Artemisia douglasiana Walter Knight; Joanne Dean 1978-8-14 3132 Contra Costa Browns Island Comment
  UC2028460  Artemisia douglasiana Barbara Ertter 1997-9-7 15794 Contra Costa North side Mount Diablo, Donner Creek crossing at south end of Hetherington Trail Comment
  UC169478  Asarum caudatum Katharine Brandegee Apr 1913 Contra Costa Eastport, Oakland Hills? Comment
  CAS-BOT-BC400500  Asarum caudatum John Thomas Howell 1925-9-12 1439 Contra Costa San Leandro Canon [Canyon], Oakland Hills Comment
  SBBG93247  Asclepias vestita D. G. Nelson 1937-4-24 520 Contra Costa Marsh Crk Rd, between Byron and Clayton Comment
  UCR63400  Asclepias vestita Donald G. Nelson 1937-4-24 520 Contra Costa Marsh Creek Rd, between Byron & Clayton Comment
  CAS-BOT-BC478832  Asparagus officinalis Walter Knight; Joanne Dean 1978-8-14 3128 Contra Costa Brown's Island Comment
  CDA19073  Asphodelus fistulosus B. Case 2001-4-11 PDR 1048013 Contra Costa San Francisco Bay Region; San Ramon. 0 Comment
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May 27 2008
  RSA417743  Aster radulinus M. B. Dunkle 1931-7-18 2532 Contra Costa Strawberry Canyon, Berkeley 152 Comment
  SEINET11851717  Aster subulatus var. ligulatus L. S. Rose 1938-1 38312 Contra Costa Byron 3 Comment
  CAS-BOT-BC177886  Astragalus didymocarpus var. didymocarpus 1884-5-1 s.n. Contra Costa antioch Comment
  UC635299  Astragalus gambelianus H. L. Mason 1928-4-15 4345 Contra Costa Moraga Ridge Comment
  SEINET10486680  Astragalus nigrescens Lincoln Constance, Carl W. Sharsmith 1940-4-27 Constance 2572 Contra Costa Petals purplish; fruit obcompressed. Loose serpentine soil, open s slope, pine Canyon, base of mt diablo. 305 Comment
  CAS-BOT-BC17455  Athysanus pusillus Alice Eastwood 1914-2-24 3739 Contra Costa Antioch. Comment
  UC1301000  Athysanus pusillus Helen K. Sharsmith 1963-3-3 5191 Contra Costa e of St. Mary's College (near Moraga, Las Trampas Canyon); San Francisco Bay Region, Las Trampas Canyon 259 Comment
  UC480596  Athysanus pusillus Carl Meyer 1928-2-22 291 Contra Costa Mount Diablo Comment
  SEINET12004480  Athysanus pusillus L. S. Rose 1932-1 32107 Contra Costa Nortonville Comment
  CAS-BOT-BC168542  Atriplex coronata Walter Knight; Irja Knight 1968-8-14 2417 Contra Costa On Contra Loma Drive, north side of road, Contra Loma Regional Park, near Antioch Comment
  CDA37399  Atriplex coronata D. G. Kelch, Mike Perlmutter 2011-9-23 11 .76 Contra Costa Entry to Discovery Bay. Comment
  CAS-BOT-BC168543  Atriplex coronata R. E. Frenkel 1964-9-18 855 Contra Costa On Balfour Road, 0.2 mile west of Bixler Road 6 Comment
  CDA9502  Atriplex fruticulosa D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .229 Contra Costa Byron Airport. Comment
  JEPS65178  Atriplex fruticulosa L. R. Heckard 1971-4-15 2489 Contra Costa in crack of old road pavement at intersection of Holey Road s Byron; s of Byron Comment
  SEINET4134956  Atriplex heterosperma Howard C. Stutz 1990-8-17 95340 Contra Costa No. Livermore.; 0 Comment
  JEPS59616  Atriplex joaquinana W. L. Jepson May 1891 Contra Costa Mt. Diablo region Comment
  UC205040  Atriplex joaquinana Katharine Brandegee Contra Costa Antioch Comment
  UCD158698  Atriplex prostrata James A. Neilson Jr. 1972-11-2 3620 Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 1 Comment
  JEPS78625  Atriplex prostrata Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3280 Contra Costa Browns Island , Browns Island (Botany Cove) Comment
  UC2027884  Atriplex rosea Barbara Ertter, Chris Thayer 1996-10-25 15367 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park. 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
  UC1607604  Atriplex triangularis 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
  UC53767  Avena barbata J. Burtt Davy May, 1898 Contra Costa Livermore Region Of Mount Diablo Comment
  UC53773  Avena barbata Jos. Burtt Davy 1899-4-19 7839 Contra Costa Claremont Canyon Comment
  CDA19823  Avena fatua P. Akers 2002-5-11 s.n.- 2 Contra Costa Northern California; Mt Diablo Summit Trail at water tank picnic area. 873 Comment
  CHSC21645  Avena fatua Willis Ball 1975-3-2 469 Contra Costa Contral Loma Regional Park. In area #2. On s side of hill ca. 55 myds. ne of single restroom at sw end of lake. 39 Comment
  JEPS84882  Avena fatua G. D. Barbe 1983-5-22 4081 Contra Costa hillside along fire road n. of Juniper Campground; Mount Diablo State Park 877 Comment
  JEPS84887  Avena fatua G. D. Barbe 1983-5-22 4081 Contra Costa hillside along fire road n. of Juniper Campground; Mount Diablo State Park 877 Comment
  RSA762309  Avena fatua William J. Ferlatte, L. M. Moe 1970-4-27 1225 Contra Costa San Francisco Bay, Red Rock Island. Comment
  UCD56310  Avena fatua A. A. Beetle 1942-3-22 3266 Contra Costa Brooks Island in San Francisco Bay. Comment
  CDA10375  Baccharis glutinosa D. G. Kelch, A. G. Murdock 2004-9-2 4 .337 Contra Costa Carquinez Strait Region; Pacheco Marsh. Marsh east of Martinez and I-680 and east of lone tree Marsh. Comment
  JEPS111735  Baccharis glutinosa D. G. Kelch 2004-9-2 04 .338 Contra Costa Pacheco Marsh Marsh east of Martinez and I-680 and east of lone tree Marsh. 5 Comment
  UC651295  Baccharis salicifolia subsp. salicifolia Ira L. Wiggins 1930-4-18 4600 Contra Costa Levee Parks, near ferry 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
  UC691250  Barbarea orthoceras Mary L. Bowerman 1933-5-3 1972 Contra Costa due s Mount Diablo summit ((Meridian Peak)); Mount Diablo 731 Comment
  UC1618272  Bassia hyssopifolia Barbara Ertter, B. Olson, D. Lake, L. Hosley and A. Youngson 1991-10-20 10885 Contra Costa just w Antioch marina (Dow Wetlands Preserve); Dow Wetlands Preserve Comment
  CDA39043  Bellardia trixago D. G. Kelch 2011-6-5 11 .571 Contra Costa Carquinez Strait; South of Crockett, south of Cummings Skyway. Comment
  JEPS111081  Bellardia trixago Lee Echols 2003-4-29 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 Comment
  UCD35137  Bellardia trixago Beecher Crampton 1949-6-5 468 Contra Costa near Muir. Comment
  SD30222  Bellardia trixago P. O. Schallert 1943-4-27 Contra Costa 1 mile east of Martinez, in meadow Comment
  UC2027719  Berberis aquifolium var. dictyota Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15515 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UC1328149  Berberis nervosa Olive Dyer 1937-2-27 208 Contra Costa just s Grizzly Peak (upper end of canyon on w side of n tributary); Wildcat Canyon Comment
  UC2012948  Beta vulgaris Barbara Ertter 1990-10-24 9685 Contra Costa Martinez Regional Shoreline on Carquinez Strait. Comment
  UCD158697  Beta vulgaris subsp. maritima James A. Neilson Jr. 1972-11-2 3613 Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 1 Comment
  CAS-BOT-BC102086  Bidens frondosa Walter Knight; Joanne Dean 1978-8-14 3157 Contra Costa Browns Island Comment
  UC912220  Bidens frondosa Herbert L. Mason 1929-9-21 5446 Contra Costa 2.6 mi ne of Byron (Borden Highway); Borden Highway Comment
  SEINET10758592  Blennosperma californicum Lewis S. Rose 1932-3-15 Rose 3279 Contra Costa Byron. Comment
  NY31035  Blennosperma nanum R. C. F. Bacigalupi 1956-3-26 5526 Contra Costa In Deer Valley, along Deer Valley road 76.2 Comment
  POM247237  Blennosperma nanum Annetta Carter 1937-3-28 1225 Contra Costa Marsh Creek Road, 15 miles east of Concord. 152 Comment
  RSA114082  Blennosperma nanum H. K. Sharsmith 1954-3-24 4409 Contra Costa Hillslope above old Nortonville Mines, near Kirker Pass road between Clayton and Antioch. 305 Comment
  RSA517739  Blennosperma nanum Donald G. Nelson 1937-3-30 459 Contra Costa Marsh Creek Highway, about halfway between Clayton and Bryon. Comment
  CAS-BOT-BC100703  Blennosperma nanum var. nanum M. K. C. 1886-5-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC100704  Blennosperma nanum var. nanum Robert F. Hoover 1938-2-21 2750 Contra Costa Byron Hot Springs Comment
  CAS-BOT-BC100702  Blennosperma nanum var. nanum Helen K. Sharsmith 1954-3-24 4409 Contra Costa Hillslope above old Nortonville Mines, near Kirker Pass Road between Clayton and Antioch 304 Comment
  SBBG45059  Blennosperma nanum var. nanum A. Carter 1937-3-28 1225 Contra Costa Marsh Crk Rd, ca. 15 mi E of Concord 152 Comment
  UC2070516  Blennosperma nanum var. nanum Barbara Ertter with Steve Matson 2003-3-15 18108 Contra Costa Black Diamond Mines Regional Preserve, Black Diamond Trail in SW corner of park. Comment
  CAS-BOT-BC127916  Blepharizonia laxa Mrs. Curran s.n. Contra Costa Antioch Comment
  UCD129617  Blepharizonia laxa Robert E. Preston 1996-9-27 1012 Contra Costa NW-facing hillside, 0.5 mile south of Contra Loma Reservoir. 106 Comment
  CAS-BOT-BC100337  Blepharizonia plumosa K. Curran 1883-8-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC100339  Blepharizonia plumosa T. S. Brandegee Sept. 1883 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC100341  Blepharizonia plumosa Miss H. A. Walker 1916-8-28 3922 Contra Costa Los Medanos, near Antioch Comment
  RSA332608  Blepharizonia plumosa M. K. C 1885-08 s.n. Contra Costa Antioch Comment
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Dec 16 2012
  SJSU8304  Boechera breweri J. A. Merriman 1965-2-13 51 Contra Costa near summit of Mt Diablo; (Type locality) 853 Comment
  UCSB2219  Boechera breweri Keator, Glenn 1959-7-1 Contra Costa Growing 1/4 miles above Laurel camp on Mt. Diablo Comment
  CAS-BOT-BC15956  Boechera breweri subsp. breweri Alice Eastwood 1915-5-30 4513 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC27013  Boechera breweri subsp. breweri William Henry Brewer 1862-5-14 1086 Contra Costa Summit of Monte Diablo Comment
  SBBG2385  Boechera breweri subsp. breweri H. and M. Dearing 1940-3-20 4125 Contra Costa near summit of Mt Diablo Comment
  UC118056  Boechera breweri subsp. breweri G. W. Dunn 1892-3-12 Contra Costa 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
  UC691069  Boechera breweri subsp. breweri Mary L. Bowerman 1932-4-16 1344 Contra Costa Eagle Point Mount Diablo Comment
  UCD102382  Boechera breweri subsp. shastaensis Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 1060 Comment
  RSA102247  Boisduvalia cleistogama M. K. Curran 1886-05 s.n. Contra Costa Near Antioch. Comment
  POM249869  Boisduvalia densiflora Joseph A. Ewan, Nesta Ewan 1935-8-23 9337 Contra Costa Shasta road entrance, Wildcat Creek drainage Comment
  POM32378  Boisduvalia glabella Katherine Brandegee 1905-6-16 s.n. Contra Costa Antioch Comment
  POM194201  Boisduvalia glabella J. T. Howell 1929-7-20 4331 Contra Costa Pittsburg Comment
  CAS-BOT-BC31334  Bolboschoenus maritimus Walter Knight; Joanne Dean 1978-8-14 3161 Contra Costa Browns Island. Comment
  UCD146728  Bolboschoenus maritimus subsp. paludosus G. F. Hrusa; D. Crowe 1998-5-8 14395 Contra Costa Sacramento-San Joaquin River Delta. East end of Dow Chemical property in Pittsburg. 15 Comment
  CAS-BOT-BC31392  Bolboschoenus robustus John Thomas Howell 1932-10-8 10794 Contra Costa Tidal Flat at mouth of Rodeo Creek. Comment
  CAS-BOT-BC95325  Bowlesia incana Mary L. Bowerman 1933-4-22 1889 Contra Costa Curry-Cave Point trail, Mount Diablo 426 Comment
  UC566857  Bowlesia incana H. L. Mason 1928-4-29 4419 Contra Costa Mount Diablo, Sycamore Canyon Sycamore Canyon; Mount Diablo, Sycamore Canyon Comment
  UC566877  Bowlesia incana H. L. Mason 1928-3-4 4169 a Contra Costa Shell Ridge Comment
  UC691789  Bowlesia incana Mary L. Bowerman 1933-6-7 2259 Contra Costa Mount Diablo, North Peak Ridge North Peak Ridge; Mount Diablo, North Peak Ridge 1021 Comment
  POM181431  Brassica rapa I. L. Wiggins 1930-4-18 4609 Contra Costa Jersey Island. Comment
  UC1795697  Briza maxima Barbara Ertter, Chris Thayer 1995-4-25 13999 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Black Hawk Ridge Rd at northeast FK of Sycamore Creek. 396 Comment
  UC2028494  Briza maxima Barbara Ertter 1998-5-3 16071 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, between Wall Point and Secret Trail junction Comment
  UCD57815  Bromus berteroanus Beecher Crampton 1956-5-14 3415 Contra Costa 1/2 mile west of Martinez. 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
  SEINET191354 Image available Bromus carinatus var. carinatus A. A. Beetle 1942-3-22 2931 Contra Costa Brooks Island, San Francisco Bay near Richmond. Comment
  UC53787  Bromus carinatus var. carinatus J. Burtt Davy Apr 1897 Contra Costa Point Isabel; Western Middle California, Point Isabel Comment
  UC692285  Bromus carinatus var. carinatus Mary L. Bowerman 1935-5-16 3010 Contra Costa behind Gabriel-Hinks (Mount Diablo, e side of North Peak); Mount Diablo, North Peak 289 Comment
  CAS-BOT-BC149542  Bromus carinatus var. carinatus R. E. Frenkel 1964-2-24 378 Contra Costa On Giant Road at its junction with Atlas Road, Richmond. 16 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
  UC2028538  Bromus catharticus Barbara Ertter 1998-2-15 15917 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, Edge of Bob Pond and picnic area at Old Borges Ranch. Comment
  JEPS75533  Bromus diandrus P. F. Yorks 1974-4-28 1452 Contra Costa on Hampton road 1.7 km s of Bear Creek Road (n of Briones Reservoir, in Hampton Road Natural Reserve); Hampton Road Natural Reserve Comment
  UC691228  Bromus diandrus Mary L. Bowerman 1935-5-3 2954 Contra Costa below Garden-of-the-Jungle Gods (Mount Diablo, Fossil Ridge); Mount Diablo, Fossil Ridge Comment
  UCD36912  Bromus diandrus Beecher Crampton 1956-5-14 3378 Contra Costa 4.6 miles south of city of Antioch, on Empire Mine Drive, at head of Horse Valley. Comment
  CAS-BOT-BC156067  Bromus diandrus Mary L. Bowerman 1935-5-25 3068 Contra Costa Mount Diablo. South of the summit. 1066 Comment
  POM300690  Bromus hordeaceus Mary L. Bowerman 1931-5-13 839 Contra Costa Pine canyon floor one mile above the sulphur spring Comment
  UC1131074  Bromus hordeaceus C. M. Belshaw 1936-5-7 2047 Contra Costa 2 mi s of San Ramon 274 Comment
  UCD58641  Bromus hordeaceus Beecher Crampton 1956-5-14 3417 Contra Costa 1/2 mile northwest of Martinez. Road to Crockett. Comment
  UC692368  Bromus laevipes Mary L. Bowerman 1935-5-30 3095 Contra Costa between two ridges which converge at Twin Peaks ((Eagle Point Ridge)); Mount Diablo 350 Comment
  UCD58920  Bromus laevipes P. B. Kennedy 1916-5-1 s.n. Contra Costa Pinehurst. Comment
  POM301030  Bromus madritensis Mary L. Bowerman 1933-5-8 2004 Contra Costa Fossil Ridge, south face, not far from but out of sight of South Entrance 290 Comment
  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
  UC692333  Bromus madritensis subsp. madritensis Mary L. Bowerman 1935-5-22 3037 Contra Costa w of Twin Peaks (n end of Eagle Point Ridge, Mount Diablo); Mount Diablo, Eagle Point Ridge 304 Comment
  UC1024733  Bromus madritensis subsp. rubens Leo Whitney 1935-4-21 3056 Contra Costa Corral Hollow Comment
  UC2028467  Bromus tectorum Barbara Ertter 1997-8-24 15775 Contra Costa Mount Diablo, around summit Comment
  UC1103346  Bromus trinii J. P. Tracy 1900-5-24 613 Contra Costa San Francisco Bay Region, Point Richmond Point Richmond; San Francisco Bay Region, Point Richmond 3 Comment
  UC606723  Bromus trinii Edward Lee 1936-4-19 1970 Contra Costa San Francisco Bay, Red Rock Red Rock; San Francisco Bay, Red Rock Comment
  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-BC438367  Calandrinia ciliata V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley Comment
  CAS-BOT-BC438369  Calandrinia ciliata Alice Eastwood 1914-3-14 3809 Contra Costa Byron Springs Comment
  CAS-BOT-BC438372  Calandrinia ciliata Mary L. Bowerman 1939-5-2 3741 Contra Costa Mount Diablo. By road to Barbecue Terrace (off South Road) 563 Comment
  CAS-BOT-BC438373  Calandrinia ciliata Mary L. Bowerman 1939-5-2 3741 Contra Costa Mount Diablo. By road to Barbecue Terrace (off South Road) 563 Comment
  CAS-BOT-BC438374  Calandrinia ciliata John Thomas Howell 1940-4-21 15407 Contra Costa Pine Canyon, Mt. Diablo Comment
  CHSC116660  Calandrinia ciliata Lowell Ahart; Josephine Guardino 2016-4-19 20777 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
  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
  UCD100165  Calandrinia ciliata Beecher Crampton 1950-4-16 512 Contra Costa Along R.R. embankment, Giant. Comment
  CHSC24837  Calandrinia ciliata var. menziesii M. A. Callahan 1976-4-14 14 Contra Costa Small pop. 5 m. from roadside w of house at 1976 Mohawk Dr. Pleasant Hill. 115 Comment
  SD41282  California macrophylla McCallum 1933-4-26 3696 Contra Costa Near road to Tassajara Comment
  UC570761  Callitriche marginata H. L. Mason 1932-3-16 6810 Contra Costa At east edge Walnut Creek, along S.P. Railroad track Comment
  UC570769  Callitriche marginata H. L. Mason 1932-3-20 6852 Contra Costa Deer Valley; Briones Road Comment
  JEPS102906  Calochortus albus Barbara Ertter with John Ginochio 2002-6-1 17938 Contra Costa Arroyo del Cerro on NW side of mountain, above connector road between Government Road and Olofson Homestead Mount Diablo Comment
  UC2031422  Calochortus albus Barbara Ertter 1991-6-1 10086 Contra Costa Las Trampas Regional Wilderness in hills W of Danville, Elderberry Trail ca. 1/2 mi from trailhead Comment
  UC3366  Calochortus albus W. H. Brewer 1862-5-24 1157 Contra Costa se of Monte Diablo Comment
  UC2028323  Calochortus argillosus Barbara Ertter, Susan D'Alcamo 1998-6-12 16153 Contra Costa North Gate Road on west flank of Mount Diablo, between Long Ridge and Buckle Point. Comment
  CAS-BOT-BC132504  Calochortus pulchellus Alice Eastwood 1923-5-4 11728 Contra Costa Mt. Diablo Comment
  JEPS125942  Calochortus pulchellus D. W. Taylor 2001-4-26 17627 Contra Costa Black Diamond Mines Regional Preserve; 1 mile SSW of Nortonville (site); growing on access road to PG&E electrical transmission lines. Comment
  SBBG33410  Calochortus pulchellus A. D. E. Elmer -Jun-1903 4631 Contra Costa Mount Diablo Comment
  SBBG54485  Calochortus pulchellus L. R. Abrams 1921-5-25 8053 Contra Costa Mt Diablo, 4.5 mi from summit Comment
  UC3461  Calochortus pulchellus W. H. Brewer 1862-5-7 1063 Contra Costa n slope Mount Diablo Comment
  UC691993  Calochortus pulchellus Mary L. Bowerman 1930-6-5 242 Contra Costa 5.8 mi from entrance (= North Gate) (West road (=North Rd)); Mount Diablo 457 Comment
  UC843700  Calochortus pulchellus Harold V. Manor 1913-5-18 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC132503  Calochortus pulchellus H. M. Hall 1916-5-30 10132 Contra Costa Mt. Diablo, north slopes, near Pine Canyon 365 Comment
  POM153228A  Calochortus pulchellus C. L. Hitchcock 1928-6-5 14 Contra Costa Between Port Costa and Martinez. 18 Comment
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Feb 14 2017
  JEPS112510  Calochortus superbus Christopher Thayer 1996-6-7 Contra Costa Oursan Trail above Hampton rd. East Bay Municipal Utility District property Comment
  RSA8517  Calochortus umbellatus J. T. Howell 1933-5-14 11261 Contra Costa Hills east of St. Marys college 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
  JEPS122392  Calochortus venustus Nisrine Machaka-Houri with Gracie Benson-Martin 2014-5-17 NG 12 Contra Costa Golden Lily Trail, Mitchell Canyon, Mt. Diablo State Park. Comment
  JEPS116745  Caltha palustris David Gowen 2007-3-19 665 Contra Costa Huckleberry Preserve in stream/marsh area in canyon bottom. Comment
  CAS-BOT-BC270072  Calycadenia multiglandulosa H. M. Hall 1916-8-16 10274 Contra Costa Horse Valley, 9 km S of Antioch Comment
  CAS-BOT-BC275351  Calycadenia truncata var. truncata Mary L. Bowerman 1936-9-1 3536 Contra Costa Mount Diablo. Between North Peak and the mouth of Perkins Canyon 487 Comment
  UC2028302  Calystegia malacophylla subsp. pedicellata Barbara Ertter, Susan D'Alcamo 1998-6-12 16189 Contra Costa North Peak Trail south of Prospectors Gap on east side of Mount Diablo summit. Comment
  JEPS78819  Calystegia purpurata Edward Lee 1936-5-24 2160 Contra Costa about 2 mi se Curry Canyon (Marsh Creek, Morgan Territory); Morgan Territory, se of Curry Canyon, Marsh Creek Comment
  UC691851  Calystegia purpurata Mary L. Bowerman 1931-4-4 658 Contra Costa North Road 4.5 mi from North Gate Mount Diablo (bank above road); Mount Diablo 396 Comment
  JEPS111813 Image available Calystegia sepium subsp. binghamiae A. G. Murdock 2004-6-4 321 Contra Costa Pacheco Marsh Comment
  JEPS111817  Calystegia sepium subsp. binghamiae D. G. Kelch 2004-7-9 04 .289 Contra Costa Crockett Edwards Creek. Immediately below high school. 4 Comment
  CAS-BOT-BC209525  Calystegia sepium subsp. limnophila Ira L. Wiggins 1954-9-5 13123 Contra Costa Levee along Bethel Island Comment
  CDA41299  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 2 of 2. Comment
  JEPS47838  Calystegia subacaulis W. L. Jepson 1922-6-7 9719 a Contra Costa North Berkeley Hills Comment
  UC1197881  Calystegia subacaulis subsp. subacaulis Joseph P. Tracy 1934-4-30 13192 Contra Costa Near Lafayette. 152 Comment
  UC1794983  Calystegia subacaulis subsp. subacaulis R. K. Brummitt and B. Ertter 1998-5-6 19784 Contra Costa Mt. Diablo, NW side, path to Mitchell's Rock 300 Comment
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Aug 3 2013
  UC635291  Camissonia campestris subsp. campestris H. L. Mason 1931-4-5 5820 Contra Costa Antioch sandhills Comment
  POM31985  Camissonia contorta C. F. Baker 1903-4-25 2824 Contra Costa Antioch. Comment
  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
  UC635400  Camissoniopsis intermedia H. L. Mason 1928-4-29 4436 Contra Costa Sycamore Canyon Mount Diablo (s slope of mt.) Comment
  UC20485  Camissoniopsis micrantha W. H. Brewer 1862-5-22 1137 Contra Costa foothills e Mount Diablo Comment
  UC726184  Camissoniopsis micrantha A. A. Heller 1942-4-12 Contra Costa 4 mi w 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
  SEINET10461960  Campanula exigua Rattan 1886-6-14 RATTAN s.n. Contra Costa Summit of Mount Diablo Comment
  JEPS108315  Campanula griffinii David Gowen 2005-5-28 391 Contra Costa Mt. Diablo State Park. Prospectors Gap Road outside of park boundary. Small serpentine area ca 1/4 mile west of junction with Ray Morgan Rd. (dirt). Comment
  JEPS83131  Capsella bursa-pastoris R. P. Allen 1935-3-15 113 Contra Costa Pittsburg Comment
  CAS-BOT-BC37396  Cardamine californica Annetta Carter; Helen Sharsmith 1940-3-17 1498 Contra Costa Near Stege railroad station two miles southeast of Richmond. 7 Comment
  JEPS111860  Cardamine californica D. G. Kelch 2004-3-12 04 .23 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road 140 Comment
  UC691085  Cardamine californica Mary L. Bowerman 1931-2-8 504 Contra Costa Mineral Spring , Mineral Spring (Mount Diablo) 396 Comment
  UCR17079  Cardamine californica James K. Ryan 1969-3-31 45 Contra Costa Mt. Diablo State Park, 0.25 mi inside S gate entrance at first large turnout on left side of rd, at top of steep hill 701 Comment
  POM272925  Cardamine californica var. integrifolia Lyman Benson 1935-3-16 6277 Contra Costa Mitchell Canyon near Clayton; Mt. Range: Mt. Diablo; Watershed: Walnut Creek. 244 Comment
  UC10326  Cardamine californica var. integrifolia W. H. Brewer 1862-5-1 1039 Contra Costa Walnut Creek Comment
  RSA128566  Cardamine californica var. integrifolia P. H. Raven 1954-1-10 6371 Contra Costa North Road, Mt. Diablo. 396 Comment
  UC2027753  Cardamine hirsuta Barbara Ertter 1997-2-11 15455 Contra Costa north side of Mount Diablo, Mitchell Canyon trailhead parking area, trodden ground. Comment
  UC2027761  Cardamine hirsuta Barbara Ertter 1997-2-11 15453 Contra Costa North side of Mount Diablo, Donner Cabin site on Donner Canyon Road. Comment
  CAS-BOT-BC37863  Cardamine oligosperma Mary L. Bowerman 1932-3-6 1100 Contra Costa Mount Diablo. Sycamore Canyon, east fork. Near trail. Comment
  POM300574  Cardamine oligosperma Mary L. Bowerman 1932-3-6 1100 Contra Costa Sycamore Canyon, east fork: Near trail. Comment
  RSA134229  Cardamine oligosperma P. H. Raven, H. L. Mason, Robert Ornduff 1957-4-11 10623 Contra Costa Curry Canyon, four miles south of the Recreation Ground. Comment
  UC2029039  Cardamine oligosperma Barbara Ertter 2000-3-19 16897 Contra Costa Southwest side of Mount Diablo, Stage Road along Pine Creek, ca 1/2 mile above Pine Pond. Comment
  CDA40557  Cardaria chalepensis V. Guise & B. Slate 2014-4-8 PDR# 070 P06223871 Contra Costa Clayton; 11501 Marsh Creek Road, 0.5 mile east of Morgan Territory Road, East Bay Regional Park District property. 0 Comment
  CDA19196  Cardaria draba R. Fonseca 2001-5-16 PDR P 088201 Contra Costa Suisun Bay Region; Franklin Canyon Rd., Martinez. 115 Comment
  POM301032  Carduus pycnocephalus Mary L. Bowerman 1935-5-25 3079 Contra Costa North Road 2.4 miles from entrance (by sheperd's camp) 305 Comment
  UC582525  Carduus pycnocephalus subsp. pycnocephalus Joseph P. Tracy 1934-4-30 13188 Contra Costa roadside between Moraga and Lafayette Moraga 152 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
  UC691374  Carduus tenuiflorus Mary L. Bowerman 1932-5-6 1412 Contra Costa on floor of Mitchell Canyon; Mount Diablo, Mitchell Canyon 213 Comment
  CAS-BOT-BC281806  Carduus tenuiflorus Mary L. Bowerman 1934-6-9 2547 Contra Costa Mount Diablo. South Road, bend by Diablo Trail sign reading 4.4 miles to summit: Roadside 304 Comment
  POM226232  Carduus tenuiflorus J. T. Howell 1933-5-21 11323 Contra Costa San Pablo Comment
  JEPS124459  Carex barbarae Daniel Slakey with CNPS Volunteers 2015-6-29 135 Contra Costa Mt. Diablo State Park. Slope above Emmons Canyon, along access trail from Macedo Ranch Staging Area. Comment
  JEPS25138  Carex barbarae G. Thomas Robbins 1959-5-16 4008 Contra Costa Caly [clay] banks and rivulet just north of Point Orient, Potrero Hills, overlooking San Francisco Bay, Richmond Comment
  JEPS25239  Carex barbarae G. Thomas Robbins 1959-8-1 4116 Contra Costa Las Trampas Creek, about 1 1/2 miles SE of St. Mary's College 182 Comment
  JEPS105721  Carex densa David Gowen 2004-9-13 161 Contra Costa Mt. Diablo State Park. Johnny Walker Spring, which is ca. .2 mile above the junction of Angel Kerley Rd. (fire trail) and North Gate Rd., approx. 2200' elev. Comment
  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
  UC2028541  Carex globosa Barbara Ertter 1998-3-7 15927 Contra Costa Southwest side of Mount Diablo, west end Fossil Ridge Trail. Comment
  CAS-BOT-BC119740  Carex nebrascensis Walter Knight 1979-6-15 3377 Contra Costa Crooked Slough. Browns Island. Comment
  UC2028414  Carex praegracilis Barbara Ertter with Dan Norris 2000-12-3 17553 Contra Costa South side Mount Diablo, Devils Slide Trail above Sulfur Springs on NW fork of Sycamore Creek Comment
  UC691959  Carex serratodens Mary L. Bowerman 1933-4-15 1856 Contra Costa canyon s Arroyo del Cerro (hollow in gully near main stream); Mount Diablo Comment
  UC692014  Carex serratodens Mary L. Bowerman 1933-5-3 1986 Contra Costa Alder Creek Mount Diablo 762 Comment
  UC2028450  Carex serratodens Barbara Ertter with Chris Thayer 1996-10-25 15388 Contra Costa West side of Mount Diablo, South Gate Road just south of junction at Mountain House Creek crossing Comment
  UC593503  Carex subbracteata G. L. Stebbins Jr. 1936-5-9 1555 Contra Costa e side Wildcat Canyon; Berkeley Hills Comment
  UC8054  Carex subbracteata Brewer 1862-4-30 1012 Contra Costa Walnut Creek Comment
  CDA20549  Carthamus creticus R. Fonseca 2005-6-2 PDR 1327561 Contra Costa San Francisco Bay Area; 1171 Chistie Rd, Martinez. 0 Comment
  RSA516598  Castilleja affinis R. C. Bacigalupi, G. Thomas Robbins 1956-5-11 5643 Contra Costa Near summit of Hampton Road grade, on the Pinole Creek side, over hill north of Bear Creek and leading to Briones Valley School (which is not in Briones Valley). 221 Comment
  RSA639387  Castilleja affinis H. P. Bracelin 1933-6-10 768 Contra Costa Near crest of hills north of Berkeley above Kensington. Comment
  JEPS43525  Castilleja affinis subsp. affinis August Hartman 1960-4-19 6 D Contra Costa North Gate Road on Mt. Diablo; Mt. Diablo 609 Comment
  JEPS75506  Castilleja affinis subsp. affinis P. F. Yorks 1974-5-19 161 Contra Costa ca 1.9 km s Bear Creek Rd on Hampton Rd in Hampton Rd Natural Reserve (n of Briones Reservoir) 200 Comment
  UC64217  Castilleja affinis subsp. affinis H. M. Hall 1900-3-23 Contra Costa San Pablo Creek; San Francisco Bay Region Comment
  UC27158  Castilleja ambigua subsp. ambigua Jos. Burtt Davy 1900-6-7 6666 Contra Costa Martinez Comment
  JEPS9949  Castilleja attenuata W. L. Jepson 1923-4-22 9873 Contra Costa Mt. Diablo Comment
  JEPS23261  Castilleja densiflora subsp. densiflora G. Thomas Robbins 1959-4-26 4005 Contra Costa about 1 mi ne Giant (about 0.25 mi n of San Pablo Oil Tank Farm) 15 Comment
  CHSC59823  Castilleja exserta Linda Osborne 1980-4-5 1 Contra Costa Los Malinos Jr College, ca. 50 m e of Lake Parcourse handwalk bars and 75 m n. 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
  JEPS10339  Castilleja exserta subsp. exserta W. L. Jepson 1923-4-22 9859 Contra Costa Mt. Diablo Comment
  UC27243  Castilleja exserta subsp. exserta H. P. Chandler 1900-3-24 Contra Costa Briones Hills; Mount Diablo Region Comment
  UC1328145  Castilleja exserta subsp. latifolia Olive Dyer 1938-4-6 417 Contra Costa slope above Big Springs Canyon; Wildcat Canyon Comment
  JEPS84387  Castilleja foliolosa Roxanne L. Bittman 1977-3-29 28 Contra Costa ca 3 from base on n side Mount Diablo (Scenic Road) 762 Comment
  UC1081509  Castilleja foliolosa H. L. Mason 1928-3-4 4169 Contra Costa Shell Ridge Comment
  UC691594  Castilleja foliolosa Mary L. Bowerman 1931-4-18 730 Contra Costa basin of ne-fork Sycamore Canyon; Mount Diablo Comment
  UC691651  Castilleja foliolosa Mary L. Bowerman 1933-3-25 1762 Contra Costa Diablo Stock Farm (Stone Valley) Canyon (= Emmons Canyon) Stone Valley; Mount Diablo Comment
  UC2028150  Castilleja foliolosa Barbara Ertter 1998-4-4 15963 Contra Costa Shell Ridge Open Space northwest of Mount Diablo and Indian Valley School. Comment
  UC691618  Castilleja rubicundula subsp. lithospermoides Mary L. Bowerman 1935-5-22 3035 Contra Costa n end Eagle Point ridge; Mount Diablo 289 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-BC41039  Caulanthus flavescens Reed Clark Rollins 1946-3-25 3046 Contra Costa Western slope of Mount Diablo. Comment
  CDA24865  Caulanthus flavescens Jim Jokerst 1989-3-31 3078 Contra Costa East of creek in Brushy Creek Canyon. 0 Comment
  CAS-BOT-BC40508  Caulanthus lasiophyllus A. A. Heller 1908-4-17 8907 Contra Costa Hills three miles south of Antioch. 18 Comment
  CAS-BOT-BC48832  Ceanothus cuneatus John Thomas Howell 1926-3-7 1664 Contra Costa Mt. Diablo on old wagon road Comment
  UCD111741  Ceanothus cuneatus W. Ebeling 1929-3-19 s.n. Contra Costa Mount Diablo. Comment
  JEPS48863  Ceanothus cuneatus var. cuneatus Elsa Kraeger 1926-3-7 Contra Costa e side Mt. Diablo Comment
  UC1070932  Ceanothus cuneatus var. cuneatus R. W. Lundh 1933-3-29 222 Contra Costa 1 mi w Alamo; Concord quad Comment
  UC1070938  Ceanothus cuneatus var. cuneatus H. S. Yates 1936-3-14 5363 Contra Costa 2.5 mi sw Round Valley; Mt. Diablo quad 457 Comment
  UC1071130  Ceanothus cuneatus var. cuneatus R. C. Wilson 1935-2-26 111 Contra Costa 1 mi sw Somersville; Mt. Diablo quad 365 Comment
  UC692589  Ceanothus cuneatus var. cuneatus Mary L. Bowerman 1930-6-10 319 Contra Costa accross the rd from and slightly below, Muir Area; Mount Diablo Comment
  SBBG68364  Ceanothus cuneatus var. ramulosus H. E. McMinn -- Contra Costa Mt Diablo Comment
  CAS-BOT-BC49716  Ceanothus cuneatus var. rigidus Brandegee 93 Contra Costa Nortonville Comment
  CAS-BOT-BC51497  Ceanothus oliganthus var. sorediatus H. E. McMinn 1922-5-30 108 Contra Costa Pinehurst Comment
  JEPS42191  Ceanothus oliganthus var. sorediatus W. L. Jepson 1908-4-4 3003 Contra Costa West Branch of San Pablo Creek Berkeley hills Comment
  JEPS42309  Ceanothus oliganthus var. sorediatus H. H. Haworth 1917-5-3 Contra Costa Redwood Peak Oakland Hills Comment
  UC692590  Ceanothus oliganthus var. sorediatus Mary L. Bowerman 1932-5-6 1424 Contra Costa Mitchell Canyon Mount Diablo, Mitchell Canyon Comment
  CHSC69650  Ceanothus ramulosus James D. Jokerst; Lori May, Dave Magney 1989-4-6 3082 Contra Costa Parcel 10 (Ladd's Parcel) in watershed. Comment
  CDA18840  Centaurea calcitrapa J. Vargas 1999-7-19 PDR 1219275 Contra Costa near the junction of Hwy 4 and Willow Pass Rd., nr. Concord. 0 Comment
  CDA7090  Centaurea calcitrapa T. C. Fuller 1961-9-13 7000 Contra Costa Highway J4, ca. 4 miles southeast of Byron. 0 Comment
  RSA666408  Centaurea repens Bob Case 2001-10-2 s.n. Contra Costa Southeast Pleasant Hill, East Bay Municipal Utilities District right-of-way on West Hookston Road Comment
  UC1491380  Centaurea solstitialis G. Merrill 1981-7-21 Contra Costa 3 mi w of Camino Diablo Rd. (on Marsh Creek Road) Comment
  CAS-BOT-BC284463  Centaurea solstitialis Chester Dudley 1931-7-1 s.n. Contra Costa Walnut Creek Comment
  JEPS111970  Centaurium davyi D. G. Kelch 2004-4-26 04 .149 Contra Costa Point Pinole Pt. Pinole 1 Comment
  UC1178020  Centaurium muehlenbergii Herbert L. Mason 1955-7-14 14637 Contra Costa 0.5 mi e Antioch Bridge Comment
  CDA36467  Centaurium tenuiflorum Ed Swan 2011-8-18 PDR# 1641228 Contra Costa Orinda; Bear Creek Road near Fire Trail 43-4. 0 Comment
  CDA38378  Centaurium tenuiflorum D. G. Kelch 2005-6-24 5 .388 Contra Costa Carquinez Strait Region; Franklin Canyon at McEwen Road. Comment
  JEPS111774  Centranthus ruber D. G. Kelch 2004-6-19 04 .282 Contra Costa Crockett-Tormey Headlands. Along railroad tracks west of Carquinez Bridge Crockett (Valona) Contra Costa County CA 20 Comment
  CAS-BOT-BC288540  Centromadia fitchii John Thomas Howell 1930-9-28 5497 Contra Costa 6.3 miles from Byron on the Marsh Creek Rd Comment
  CAS-BOT-BC288545  Centromadia fitchii James I. McMurphy 1908-10-18 s.n. Contra Costa Antioch Comment
  UC1093927  Centromadia fitchii Herbert L. Mason 1929-9-21 5430 Contra Costa 3 mi above Clayton (Marsh Creek Road) Comment
  CAS-BOT-BC288872  Centromadia parryi subsp. congdonii J McMurphy 1909-9-24 s.n. Contra Costa San Ramon Comment
  CAS-BOT-BC288873  Centromadia parryi subsp. congdonii R. E. Preston 1998-10-6 1171 Contra Costa On N side of Camino Tassajara, from Tassajara Hill Elementary School to 0.35 mile W of Finlay Rd 228 Comment
  UC1777686  Centromadia parryi subsp. congdonii R. E. Preston 1998-10-25 1198 Contra Costa junction of Sycamore Valley Rd and Camino Tassajara Danville 129 Comment
  CAS-BOT-BC288882  Centromadia parryi subsp. congdonii H. M. Hall 1916-10-14 10283 Contra Costa Pacheco Comment
  CAS-BOT-BC288883  Centromadia parryi subsp. congdonii John Thomas Howell 1932-10-16 10820 Contra Costa Near San Ramon Comment
  UCD19693  Centromadia pungens Donald W. Kyhos 1963-4-11 s.n. Contra Costa 3.6 miles south of Byron Hwy and Byron Hot Springs Rd. Comment
  CAS-BOT-BC279181  Centromadia pungens subsp. pungens Walter Knight; Irja Knight; et al 1978-9-5 3224 Contra Costa Browns Island 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
  JEPS25331  Centromadia pungens subsp. pungens Andrew P. Nelson 1961-4-6 713 Contra Costa about 3 mi s Byron (on Byron Road, near Southern Pacific Railroad crossing) Comment
  JEPS35034  Centromadia pungens subsp. pungens W. L. Jepson 1895-9-14 Contra Costa Walnut Creek Comment
  OBI18127  Centromadia pungens subsp. pungens Robert F. Hoover 1967-4-28 10515 Contra Costa Byron Hot Springs Comment
  UC523551  Centromadia pungens subsp. pungens David D. Keck 1933-11-2 2613 Contra Costa 3 mi s Martinez (on road to Pacheco) Comment
  CAS-BOT-BC279188  Centromadia pungens subsp. pungens David D. Keck 1933-11-2 2617 Contra Costa 2.4 mi. E. of Antioch on road to Oakley, N. Contra Costa County Comment
  CAS-BOT-BC279197  Centromadia pungens subsp. pungens Alice Eastwood 1923-4-28 11666 Contra Costa Byron Springs Comment
  CAS-BOT-BC279199  Centromadia pungens subsp. pungens A. D. E. Elmer 1903-5-1 4392 Contra Costa Walnut Creek Comment
  CAS-BOT-BC279202  Centromadia pungens subsp. pungens Volney Rattan 1886-6-15 s.n. Contra Costa Pacheco Valley Comment
  CAS-BOT-BC279203  Centromadia pungens subsp. pungens David D. Keck 1932-7-7 1736 Contra Costa Just east of Nichols Comment
  CHSC116614  Cerastium glomeratum Lowell Ahart; Josephine Guardino 2016-4-19 20773 Contra Costa Undesignted 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
  JEPS111783  Cerastium glomeratum D. G. Kelch 2003-3-21 03 .72 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  UC1948960  Cerastium glomeratum William J. Ferlatte, L. Maynard Moe 1970-4-27 1233 Contra Costa San Francisco Bay: Red Rock Island Comment
  RSA0069381  Cerastium glomeratum Katie Gallagher, Nick Jensen 2014-4-26 208 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  UC1618283  Ceratophyllum demersum Barbara Ertter, Lynne Hosley 1991-9-22 10823 Contra Costa in hills sw of Lafayette (Lafayette Reservoir, at e end of dam); Lafayette Reservoir 137 Comment
  RSA666357  Ceratophyllum demersum Barbara Ertter, Lynne Hosley 1991-9-22 10823 Contra Costa Lafayette Reservoir in hills SW of Lafayette 137 Comment
  CAS-BOT-BC137008  Cercocarpus betuloides var. betuloides L. R. Abrams 1910-10-8 4355 Contra Costa Mt. Diablo Summit 1158 Comment
  JEPS45531  Cercocarpus betuloides var. betuloides W. L. Jepson 1920-9-6 9083 Contra Costa Mount Diablo Comment
  UC691122  Cercocarpus betuloides var. betuloides Mary L. Bowerman 1931-3-7 548 Contra Costa summit of Meridian Peak, Mount Diablo Meridian Peak; Mount Diablo, Meridian Peak Comment
  UC34726  Chaenactis glabriuscula var. glabriuscula Chesnut and Drew Contra Costa Summerville Comment
  CDA23076  Chamaesyce maculata D. G. Kelch, D. A. Weinstein 2008-5-5 8 .093 Contra Costa Carquinez Strait; Richmond. W Chevy s Hill. N parking lot of Hilltop Mall. Comment
  JEPS99568  Chamaesyce serpillifolia subsp. serpillifolia Mary Bowerman 1975-9-14 Contra Costa Mount Diablo, Chase Pond. Comment
  UC2062625  Chamaesyce serpyllifolia var. serpyllifolia Barbara Ertter with John Ginochio 2002-6-1 17944 Contra Costa Ginochio house on south side of North Gate Road on NW base of Mount Diablo, lower Arroyo del Cerro. Comment
  CAS-BOT-BC70278  Cheilanthes intertexta John Thomas Howell 1955-3-6 30145 Contra Costa between South & North peaks of Mt. Diablo Comment
  UC2027830  Chenopodium californicum Barbara Ertter with Tony Morosco and other CNPS members 2001-5-6 17622 Contra Costa Northwest flank of Mount Diablo, south end of Black Point Trail on tributary of White Canyon. Comment
  CDA21590  Chenopodium multifidum D. G. Kelch, Mike Park 2008-9-1 8 .302 Contra Costa Carquinez Strait; Lonetree Point. Rodeo Shoreline Park. Rodeo. Comment
  JEPS99594  Chenopodium murale Mary Bowerman 1993-10-22 Contra Costa Mount Diablo, Pine Pond. Comment
  JEPS61570  Chlorogalum pomeridianum var. pomeridianum Edw. L. Greene 1889-5-23 Contra Costa Byron Springs Comment
  JEPS77018  Chrysolepis chrysophylla var. minor Robert M. Lloyd 1963-3-17 Contra Costa on Skyline across from 7090 Skyline Drive (0.5 mi e of intersection of Grizzly Peak Road and Skyline Drive); Skyline Drive, Huckleberry Trail 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
  JEPS89253  Cicendia quadrangularis J. B. Davy 1900-3-24 6516 Contra Costa Pt. Richmond Comment
  UC35435  Cicendia quadrangularis J. Burtt Davy 1900-3-24 7616 Contra Costa Pt. Richmond Comment
  UC72145  Cicendia quadrangularis Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  UC1953204  Cirsium occidentale David Keil with Barbara Ertter et al. 2000-6-18 28815 B Contra Costa Mount Diablo State Park. Lower part of Jumper [Juniper] Trail above Laurel Dell picnic area. Comment
  UC691385  Cirsium occidentale var. californicum Mary L. Bowerman 1934-4-21 2538 Contra Costa Muir Area, upper brushy edge Mount Diablo, Muir Area Comment
  CAS-BOT-BC288047  Cirsium occidentale var. venustum L. R. Abrams 1921-5-25 8049 Contra Costa 4 1/2 miles from summit, Mt. Diablo Comment
  JEPS59174  Cirsium occidentale var. venustum W. L. Jepson 1922-5-23 9655 Contra Costa s slope, upper third of mt. Mt. Diablo Comment
  UC691382  Cirsium occidentale var. venustum Mary L. Bowerman 1930-6-18 348 Contra Costa Dan Cook Canyon Mount Diablo, Dan Cook (Rock City) Canyon Comment
  JEPS111724  Cirsium vulgare D. G. Kelch 2004-7-9 04 .298 Contra Costa Crockett - Carquinez Scenic Drive Just west of Pt. Costa 60 Comment
  UC691386  Cirsium vulgare Mary L. Bowerman 1932-11-19 1659 Contra Costa Lower Grapevine Spring Mount Diablo, Lower Grapevine Spring Comment
  CAS-BOT-BC285728  Cirsium vulgare Walter Knight 1978-8-27 3194 Contra Costa Contra Loma Regional Park 30 Comment
  SEINET11843056  Cirsium vulgare Unknown 1983-1 4989 Contra Costa Castro Ranch Rd between Hillside St. & Alhambra Valley Rd Comment
  UCSC006991  Clarkia Randall Morgan 1988-4-29 1150 Contra Costa NW slope of Turn Peaks, Mt. Diablo Comment
  POM181148  Clarkia affinis J. T. Howell 1931-5-12 6483 Contra Costa Mt. Diablo. Comment
  UC1122357  Clarkia affinis C. M. Belshaw 1936-5-13 2113 Contra Costa 3.7 mi ene Tassajero (plot 31); Mt. Diablo Quadrangle Comment
  UC1122360  Clarkia affinis C. M. Belshaw 1936-5-15 2130 Contra Costa Stewartsville Mt. Diablo Quadrangle Comment
  UC112975  Clarkia affinis Katharine Brandegee 1907-6-16 Contra Costa hills between Antioch and Marsh Creek Comment
  UC1818926  Clarkia affinis Barbara Ertter, Mary Bowerman 1995-6-11 14255 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, bank of Indian Creek above Indian Valley Pond, partial sun on Franciscan layer. 76 Comment
  UC2028321  Clarkia affinis Barbara Ertter, Susan D'Alcamo 1998-6-12 16155 Contra Costa North Gate Road on west flank of Mount Diablo near Buckle Point. Comment
  UC169380  Clarkia biloba Katharine Brandegee June 1905 Contra Costa Port Costa Comment
  UC692438  Clarkia biloba Mary L. Bowerman 1930-6-22 355 Contra Costa Mitchell Canyon Mount Diablo Comment
  UC85528  Clarkia biloba Katharine Brandegee 1907-7-4 Contra Costa between Martinez and Port Costa Comment
  UCD104071  Clarkia biloba C. Thayer 1994-8-1 s.n. Contra Costa West side of Lafayette Ridge, Lafayette. Comment
  LA206006  Clarkia biloba subsp. biloba H. Lewis; M. Lewis 1947-6-15 442 Contra Costa Martiney - Port Costa Road, 2.7 mi. N of Martiney City Limit Comment
  POM153229  Clarkia biloba subsp. biloba C. L. Hitchcock 1928-6-5 15 Contra Costa Between Port Costa and Crockett, 1 mile west of Port Costa. 5 Comment
  CAS-BOT-BC164157  Clarkia concinna A. D. E. Elmer 1903-5-1 4336 Contra Costa Mount Diablo Comment
  POM153259  Clarkia concinna subsp. concinna C. L. Hitchcock 1928-6-9 9 Contra Costa Between Port Costa and Martinez, 1 mile from Port Costa 15 Comment
  CAS-BOT-BC171989  Clarkia epilobioides K. Brandegee s.n. Contra Costa Antioch Comment
  UC2042956  Clarkia gracilis Barbara Ertter with David Gowen 2007-5-13 19014 Contra Costa Mount Diablo, W of Prospectors Gap Road just E of junction Meridian Ridge Road. Comment
  UC1819002  Clarkia gracilis subsp. gracilis Barbara Ertter, Tom Delendick 1996-5-2 14612 Contra Costa Mount Diablo State Park, Deer Flat Road north of Juniper Camp, at cut through open live oak forest, northwest-facing slope. 853 Comment
  RSA355431  Clarkia heterandra Anstruther Davidson 1917-07 3289 Contra Costa Mt. Diabolo [Diablo] Comment
  CAS-BOT-BC163286  Clarkia modesta Mrs. Brandegee s.n. Contra Costa Antioch Comment
  UC692503  Clarkia purpurea subsp. purpurea Mary L. Bowerman 1933-7-14 2270 Contra Costa ridge between two main forks Curry-Cave Canyon; Mount Diablo Comment
  UC692488  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1933-6-7 2252 Contra Costa saddle between Meridian Peak and North Peak; Mount Diablo Comment
  UC2028319  Clarkia purpurea subsp. quadrivulnera Barbara Ertter, Susan D'Alcamo 1998-6-12 16158 Contra Costa North Gate Road on west flank of Mount Diablo, ca 1/2 mile below upper Turtle Rock Ranch buildings. Comment
  UC1279947  Clarkia rubicunda Peter H. Raven 1957-7-5 11049 Contra Costa 0.2 mi from tip Point Richmond 106 Comment
  UC1481547  Clarkia rubicunda Neil Havlik 1980-6-6 942 Contra Costa Several colonies on Brooks Island Comment
  CAS-BOT-BC165449  Clarkia unguiculata L. R. Abrams 1916-6-30 5702 Contra Costa Mt. Diablo near lake 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
  UC1795692  Clarkia unguiculata Barbara Ertter, Kristin Ertter 1995-7-11 14477 Contra Costa Stage Road along Pine Cr. in Diablo Foothills Regional Park southwest of Walnut Creek; partial shade of oak forest, 152 Comment
  UCD32418  Clarkia unguiculata Beecher Crampton 1950-5-13 574 Contra Costa Southwest Walnut Creek. 30 Comment
  UC56201  Claytonia exigua subsp. exigua H. M. Hall 1901-4-5 1759 Contra Costa Mt. Diablo; San Francisco Bay Region 1158 Comment
  UC692660  Claytonia exigua subsp. exigua Mary L. Bowerman 1932-3-12 1114 Contra Costa Alamo Canyon (50 ft above stream) Alamo Canyon; Mount Diablo 365 Comment
  UC7885  Claytonia exigua subsp. exigua W. H. Brewer 1862-5-7 1056 Contra Costa Mount Diablo Comment
  CAS-BOT-BC439170  Claytonia exigua subsp. exigua Alice Eastwood 1915-5-30 4532 Contra Costa Unspecified Comment
  CAS-BOT-BC439440  Claytonia parviflora subsp. parviflora John Thomas Howell 1933-5-14 11252 Contra Costa Hills east of St. Mary's College Comment
  UC1745431  Claytonia parviflora subsp. parviflora Annetta M. Carter, Leo Bowerman 1935-6-1 872 Contra Costa Mt. Diablo. N-facing slope of main ridge running W from peak. 975 Comment
  UC2028575  Claytonia perfoliata subsp. intermontana Barbara Ertter with Stu Garrett 1997-3-29 15539 Contra Costa West side Mount Diablo, north end of Mothers Trail. Comment
  CAS-BOT-BC440074  Claytonia perfoliata subsp. perfoliata Mary L. Bowerman 1932-3-12 1111 Contra Costa Mount Diablo. Alamo Canyon 350 Comment
  UC1057451  Claytonia perfoliata subsp. perfoliata G. Thomas Robbins 1937-4-25 148 Contra Costa 2 mi e Alamo Comment
  UC692539  Claytonia perfoliata subsp. perfoliata Mary L. Bowerman 1932-3-12 1111 Contra Costa Alamo Canyon; Mount Diablo 350 Comment
  UC7890  Claytonia perfoliata subsp. perfoliata W. H. Brewer 1862-5-12 1080 Contra Costa 609 Comment
  CAS-BOT-BC91362  Clematis lasiantha Baki Kasapligil 1968-4-24 4270 Contra Costa Mount Diablo. Comment
  UC691588  Collinsia heterophylla Mary L. Bowerman 1930-6-7 270 Contra Costa Mount Diablo, summit of Meridian Peak Meridian Peak; Mount Diablo, Meridian Peak Comment
  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
  RSA32344  Collinsia sparsiflora var. collina Alice Eastwood 1914-5-30 4529 Contra Costa Mt. Diablo. Comment
  UC1301187  Collinsia sparsiflora var. collina Helen K. Sharsmith 1963-3-3 5192 a Contra Costa near Moraga (Las Trampas Canyon E of St. Mary's College); Las Trampas Canyon 259 Comment
  UC26642  Collinsia sparsiflora var. collina State Survey Contra Costa Mount Diablo Comment
  JEPS6266  Collinsia sparsiflora var. collina E. W. Hicks 1917-3-24 108 Contra Costa foot of W slope of Mount Diablo 304 Comment
  UC691624  Collinsia tinctoria Mary L. Bowerman 1935-6-1 3117 Contra Costa summit Mount Diablo Mount Diablo, summit (towards Devils Pulpit) 1158 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
  UC2027981  Conyza bonariensis Barbara Ertter, Chris Thayer 1996-10-25 15390 Contra Costa Southwest flank of Mount Diablo, lower South Gate Road just inside park boundary. Comment
  UC1584663  Conyza canadensis Jerry Powell 1990-8-29 1586 Contra Costa Antioch National Wildlife Refuge Comment
  HSC33256  Conyza canadensis A. M. Montalvo, J. D. Ackerman 1974-12-1 435 Contra Costa Walnut Creek, Olympic Dr. between Tice Valley Rd. and Pleasant Hill Rd. Comment
  UC2028964  Conyza floribunda Barbara Ertter 2003-2-8 18091 Contra Costa Richmond Field Station (UC-Berkeley), interior open space next to Egret Drive. Comment
  RSA537699  Cordylanthus nidularius T. I. Chuang 1975-6-29 7517 Contra Costa Northeast of Deer Flat, Mount Diablo Comment
  UC691481  Cordylanthus pilosus subsp. pilosus Mary L. Bowerman 1936-8-8 3523 Contra Costa Emmons Canyon (Diablo Stock Farm [Wattis Ranch] Canyon, W fork Mount Diablo Comment
  RSA666415  Cortaderia jubata Barbara Ertter 1991-9-28 10854 Contra Costa [El Cerrito.] Comment
  CDA37420  Cortaderia selloana D. G. Kelch, Mike Perlmutter 2011-9-23 11 .751 Contra Costa Immediately north of Discovery Bay. Comment
  UCR7819  Corylus cornuta var. californica Wm. Horn Jr. 1964-2-26 640226- 01 Contra Costa San Francisco Bay Region, Flicker Ridge, 1.5 mi SW of Moraga 183 Comment
  RSA0027707  Cosmos bipinnatus Barbara Ertter 1996-9-19 15290 Contra Costa Cerrito Creek at base of Albany Hill, just west of San Pablo Avenue. Comment
  CDA21581  Cotoneaster pannosus D. G. Kelch, Michael Park 2008-9-1 8 .299 Contra Costa Carquinez Strait; Lonetree Point. Rodeo Shoreline Park. Rodeo. Comment
  CHSC116617  Cotula australis Lowell Ahart; Josephine Guardino 2016-4-19 20799 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
  UC1795664  Cotula australis Barbara Ertter, Mary Bowerman et al. 1995-5-7 14055 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, road behind houses traversing north facing slope, mixed forest with much undergrowth. Comment
  UC2028452  Cotula coronopifolia Barbara Ertter with Joanne Kerbavaz 2000-8-20 17503 Contra Costa Frog Pond on southeast side of Mount Diablo Comment
  UC691659  Cotula coronopifolia Mary L. Bowerman 1931-3-29 624 Contra Costa n side of Cave Point (head of canyon); Mount Diablo; hollow on east side of Cave-Windy ridge Comment
  UCD159362  Cotula coronopifolia D. S. Park; S. Joslin 2010-6-27 147 Contra Costa Santa Cruz. Lighthouse Field State Beach. Below W Cliff dr. Growing on rocky outcrops. Scattered individuals. 0 Comment
  UCD159506  Cotula coronopifolia D. S. Park 2010-9-11 254 Contra Costa Growing along roadside in overflow from wetlands. Rancid water. 5 Comment
  JEPS65181  Crassula aquatica L. R. Heckard 1971-4-15 2486 Contra Costa s. Byron (field at intersection of Holey Rd.) Comment
  UC692557  Crassula aquatica Mary L. Bowerman 1935-6-21 3154 Contra Costa e. Turtle Rock pool; Mt. Diablo Comment
  RSA0068476  Crassula connata Katie Gallagher, Nick Jensen 2014-4-26 202 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  UC2028072  Crassula tillaea Barbara Ertter with Tony Morosco 1998-4-12 15995 Contra Costa Base of Mount Olympia on north side of Mount Diablo, base of quarry NE of Olympia Trail. Comment
  UC762281  Crocanthemum scoparium var. vulgare R. F. Hoover 1939-5-20 4108 Contra Costa Head of Markley Canyon Comment
  UC765094  Croton californicus R. F. Hoover 1937-5-14 2113 Contra Costa Antioch sand-dunes 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
  SEINET4344622 Image available Crypsis schoenoides Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa. 1995-10-22 14532 Contra Costa Three Springs Trail on NE side of Mt. Diablo, south of crest of Marsh Creek Rd. dried roadside pond, clay. Comment
  UC2027935  Crypsis schoenoides Barbara Ertter with Chris Thayer 1996-10-25 15376 Contra Costa West side of Mount Diablo, North Gate Road 3 road miles below Junction near Mineral Spring. Comment
  RSA0029675  Cryptantha corollata Barbara Ertter, Susan D Alcamo 1998-6-12 16165 Contra Costa North Peak Trail from Devil s Elbow on SE side of Mount Diablo summit, steep rocky S-facing bowl. 1037 Comment
  JEPS108226  Cryptantha decipiens David Gowen 2005-5-6 282 Contra Costa Mt. Diablo State Park. Rocky outcrops on the south side of North Peak. Comment
  JEPS67601  Cryptantha flaccida Mary L. Bowerman 1930-6-7 269 Contra Costa Meridian Peak summit Mount Diablo Comment
  UC125955  Cryptantha hooveri P. B. Kennedy 1908-1 Contra Costa Antioch Comment
  UC193956  Cryptantha microstachys Edward Lee Greene 1886-5-24 Contra Costa Mt. Diablo Comment
  UC691340  Cryptantha microstachys Mary L. Bowerman 1933-5-25 2183 Contra Costa w end Oyster Ridge (steep n-facing slope, s-face); Mount Diablo 411 Comment
  UC691403  Cryptantha microstachys Mary L. Bowerman 1934-4-28 2546 Contra Costa w end Oyster Ridge; Mount Diablo 457 Comment
  JEPS67770  Cryptantha nevadensis R. F. Hoover 1938-5-4 3348 Contra Costa e of Tassajero Creek 762 Comment
  CDA20771  Cuscuta japonica J. Deviney 2006-6-7 PDR 1373527 Contra Costa San Francisco Bay Area; El Cerrito Creek banks at S end of Carlsen Blvd., El Cerrito. Crossing Alameda county line into Albany. Comment
Read comments
Apr 29 2013
  CDA33492  Cuscuta japonica Yost 2008-7-17 PDR# 1454020 Contra Costa Antioch; 5124 Paddock Ct. 0 Comment
  UC1197872  Cuscuta subinclusa Joseph P. Tracy 1932-9-10 10789 E Contra Costa Franklin Canyon 152 Comment
  UC562483  Cuscuta subinclusa Joseph P. Tracy 1932-9-10 10789 Contra Costa Franklin Canyon 152 Comment
  UCD33766  Cynara cardunculus Beecher Crampton 1972-11-21 8888 Contra Costa 2 miles east of Crockett. Comment
  UC2013066  Cynara cardunculus Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14927 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  UCD60088  Cynodon dactylon Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  JEPS99550  Cynosurus echinatus Mary Bowerman 1976-6-24 Contra Costa Mount Diablo, inner Black Hills just west of meridian and south of crest. Comment
  SEINET10861237  Cynosurus echinatus M. Bowerman 1975-6-7 Bowerman s.n. Contra Costa Mount Diablo. Big Spring. Shady. Bay, Canyon Oak. But hard packed, semi open where people and horses come to watering trough (bathtub). Comment
  UC698543  Cyperus eragrostis Thomas Morley 1940-11-21 84 Contra Costa at upper end where Redwood Creek enters the lake San Leandro Lake 129 Comment
  CAS-BOT-BC114615  Cyperus eragrostis Walter Knight; Harry Reeves 1979-8-25 3407 Contra Costa In natural marsh E of reservoir. Contra Loma Regional Park near Antioch. 22 Comment
  POM264407  Cyperus eragrostis Thomas Morley 1940-12-3 90 Contra Costa Upper end of San Leandro Lake near mouth of Redwood Creek 130 Comment
  UC2028462  Cyperus eragrostis Barbara Ertter with Chris Thayer 1996-10-25 15392 Contra Costa Southwest flank of Mount Diablo, lowers South Gate Road just inside park boundary Comment
  UCD54038  Cyperus eragrostis Mrs. H. P. Kelley 1916-5-25 s.n. Contra Costa S.P. crossing, San Joaquin River. Comment
  UC692117  Cystopteris fragilis Mary L. Bowerman 1933-6-3 2243 Contra Costa summit Mt Diablo 1127 Comment
  UC692370  Daucus pusillus Mary L. Bowerman 1932-4-27 1404 Contra Costa canyon w. of Riggs Canyon (fork of canyon toward n. end, Oyster Ridge); Mt. Diablo, Oyster Ridge 350 Comment
  OBI16153  Deinandra bacigalupii Robert F. Hoover 1969-8-29 11564 Contra Costa Raymond Rd and Ames St., Livermore Valley Comment
  JEPS111707  Deinandra corymbosa D. G. Kelch 2004-5-7 04 .179 Contra Costa Ca ada del Cierbo Ca ada del Cierbo 40 Comment
  JEPS12619  Deinandra kelloggii Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  UC691948  Delphinium californicum Mary L. Bowerman 1935-5-30 3091 Contra Costa rock slide Mount Diablo, Eagle Point Ridge 350 Comment
  CAS-BOT-BC9611  Delphinium californicum Mrs. E. C. Van Dyke 1931-4-1 s.n. Contra Costa Cypress Ridge, above Livermore Comment
  LA207422  Delphinium hansenii H. Lewis; Carl Epling 1947-5-4 703 Contra Costa Marsh Creek Road, 5.8 mi. E of Creek Park Rd Comment
  UC85570  Delphinium hansenii subsp. hansenii Katharine Brandegee 1907-5 Contra Costa Bet. Antioch and Marsh Creek Comment
  RSA398649  Delphinium hesperium E. E. Stanford 1930-5-24 1512 Contra Costa Marsh Creek Canyon. Comment
  SEINET12086747  Delphinium hesperium J. T. Howell 1931-1 6482 Contra Costa North Side of Mt. Diablo Comment
  JEPS6231  Delphinium hesperium subsp. hesperium Willis L. Jepson May 23-24 1891 21394 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC9917  Delphinium nudicaule Alice Eastwood 1915-5-30 4501 Contra Costa Mt. Diablo Comment
  UC136343  Delphinium parryi subsp. parryi M. K. Curran May 1886 Contra Costa near Antioch Comment
  UC1819000  Delphinium patens subsp. patens Barbara Ertter, Tom Delendick 1996-5-2 14614 Contra Costa Mount Diablo State Park, Deer Flat Road north of Juniper Camp, at cut through open live oak forest, northwest-facing slope. 853 Comment
  UC692138  Delphinium patens subsp. patens Mary L. Bowerman 1931-3-21 584 Contra Costa w-facing slope Mount Diablo, Sycamore Canyon Comment
  UC9148  Delphinium patens subsp. patens J. Burtt Davy 1896-2-29 1263 Contra Costa Mitchell Canyon, Mt. Diablo Comment
  UC9157  Delphinium patens subsp. patens Harley P. Chandler 1901-4-5 974 Contra Costa Mount Diablo Comment
  UC1314933  Delphinium recurvatum R. F. Hoover 1967-4-28 10511 Contra Costa Byron Hot Springs Comment
  JEPS51676  Dendromecon rigida Chesnut and Drew April, 1890 Contra Costa Sommersville Comment
  UC60233  Deschampsia cespitosa subsp. beringensis Jos. Burtt Davy 1900-6-7 6667 Contra Costa near Martinez Martinez Comment
Read comments
Sep 27 2007
  CAS-BOT-BC192543  Deschampsia cespitosa subsp. holciformis Peter H. Raven 1955-6-12 8293 Contra Costa Just above Antioch Comment
  UC199816  Dicentra chrysantha V. King Chesnut 1887-9-10 Contra Costa Mt. Diablo Comment
  UC615579  Dicentra chrysantha Beryl O. Schreiber 1933-10-5 933 Contra Costa Mount Diablo road; Mount Diablo Comment
  CAS-BOT-BC500087  Dichelostemma capitatum James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC500089  Dichelostemma capitatum R. F. Hoover 1938-2-21 2756 Contra Costa Point Richmond Comment
  CAS-BOT-BC500091  Dichelostemma capitatum John Thomas Howell 1944-7-17 19831 Contra Costa Canyon of Snow Basin Creek Comment
  UC1051328  Diplacus glutinosus N. Floy Bracelin 1941-6-15 1399 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  UCD159358  Dipsacus sativus D. S. Park 2010-6-22 143 Contra Costa Wildwood canyon. Along trailside. Ditch/waterway. Small population. 80 Comment
  CHSC22236  Dirca occidentalis Robert A. Schlising 1962-2-21 2079 Contra Costa Berkeley-Oakland hills of westernmost part of county. Comment
  UC1176933  Dirca occidentalis Peter H. Raven 1950-2-19 1349 Contra Costa e side ridge at headwaters; Redwood Canyon 365 Comment
  UC872740  Dirca occidentalis Lewis S. Rose 1939-1-24 39002 Contra Costa head of Wildcat Canyon Berkeley Hills 426 Comment
  SBBG26819  Dirca occidentalis J. A. Ewan 1934-3-10 8643 Contra Costa 2 mi below Orinda Rd bridge, Wildcat Cyn Comment
  SEINET12194752  Dirca occidentalis Unknown 1987-1 6009 Contra Costa Regional Parks Botanic Garden, Tilden Regional Park, Berkeley, orig. from Little Train area 1970 305 Comment
  CDA39313  Disporum hookeri A. G. Murdock 2003-6-2 83 Contra Costa Carquinez Strait Region; Franklin Canyon - McHarry Ranch Rd. Comment
  UC400146  Disporum hookeri Ynes Mexia 1929-4-21 2387 Contra Costa Moraga Valley Comment
  UC692001  Disporum hookeri Mary L. Bowerman 1931-3-22 606 Contra Costa Mount Diablo, e fork Alamo Canyon Alamo Canyon; Mount Diablo, Alamo Canyon Comment
  JEPS108532  Distichlis spicata Lisa Schultheis with Kevin Hintsa 1995-8-20 263 -95 Contra Costa Mount Diablo. 2.1 mi from North Gate kiosk. along North Gate Road. Comment
  UCD64394  Distichlis spicata var. stolonifera M. Wiesendanger 1926-6-1 1534 Contra Costa Richmond. Comment
  UC1123273  Dodecatheon clevelandii subsp. patulum H. S. Yates 1936-3-14 5356 Contra Costa 1/2 mi n of mouth of Perkins Canyon; Mt. Diablo Quadrangle Comment
  JEPS99973  Dodecatheon hendersonii S. O'Neil 2003-3-11 SEO 7 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SBBG5600  Dodecatheon hendersonii J. M. Tucker 1946-3-24 1387 Contra Costa hills between Nortonville and Somersville Comment
  UC517947  Dodecatheon hendersonii John Thomas Howell 1931-3-10 5756 Contra Costa on Livermore Road 7 mi from Clayton; e side Mt. Diablo, 7 mi from Clayton Comment
  RSA461371  Dodecatheon hendersonii J. T. Howell 1931-3-10 5756 Contra Costa East side of Mt. Diablo 7 miles from Clayton on Livermore road. Comment
  JEPS65183  Downingia insignis L. R. Heckard 1971-4-15 2484 Contra Costa s of Byron (at intersection of Holey Road) Comment
  RSA424714  Downingia insignis Aaron Liston 1987-4-27 670 -1 Contra Costa 3 miles S of Byron. Comment
  RSA97189  Downingia insignis J. T. Howell 1953-4-26 28935 Contra Costa Between Byron and Byron Hot Springs. Comment
  UC765585  Downingia ornatissima var. eximia R. F. Hoover 1941-4-12 4841 Contra Costa 2 mi s Antioch Comment
  CDA42719  Dryopteris arguta A. G. Murdock 2004-2-12 205 Contra Costa Franklin Canyon - McHarry Ranch Road. 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
  UC606763  Dryopteris arguta Edward Lee 1936-4-19 1981 Contra Costa e slope Red Rock; San Francisco Bay Comment
  UC830948  Dudleya cymosa subsp. paniculata Alice Eastwood 1915-5-30 Contra Costa near type locality; Mount Diablo Comment
  JEPS25137  Dudleya farinosa G. Thomas Robbins 1959-5-16 4007 Contra Costa just s Pt. San Pablo (Potrero Hills); Richmond Comment
  UC2027843  Dysphania ambrosioides Barbara Ertter with Mary Bowerman 1996-11-1 15398 Contra Costa North base of Mount Diablo, downstream from Mitchell Canyon parking lot. Comment
  UC2028468  Echinochloa colona Barbara Ertter 1997-8-24 15776 Contra Costa Mount Diablo, Summit Road just above Junction Station Comment
  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
  UC692286  Echinochloa crus-galli Mary L. Bowerman 1938-10-15 3726 Contra Costa North Road by trough where trail to west base spring begins Mount Diablo; , North Road 213 Comment
  CAS-BOT-BC197106  Echinochloa crus-galli R. E. Frenkel 1963-8-23 274 Contra Costa On the lot in front of Market Plaza Center on Highway 21, Alamo 79 Comment
  POM300733  Echinochloa crus-galli Mary L. Bowerman 1938-10-15 372 Contra Costa North Road, by through where trail to west base spring begins. 213 Comment
  UCD37369  Echinochloa crus-pavonis Beecher Crampton 1959-9-3 5451 Contra Costa Contra Costa County, 2 miles north of city of Orinda, Bear Creek, East Bay Municipal Utilities District Project. Comment
  CAS-BOT-BC197226  Echinochloa crus-pavonis Mary L. Bowerman 1936-10-24 3582 Contra Costa Mount Diablo. North Road below 2-story house east of North Gate 121 Comment
  CAS-BOT-BC291118  Eclipta prostrata Walter Knight; Irja Knight 1980-8-26 3770 Contra Costa Hercules 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
  JEPS99514  Elatine brachysperma Mary Bowerman 1975-9-14 Contra Costa Mount Diablo, Hidden Pond. Comment
  JEPS99522  Elatine brachysperma Mary L. Bowerman 1975-9-14 Contra Costa Mount Diablo, Hidden Pond. Comment
  RSA721590  Elatine brachysperma Mary L. Bowerman 1975-9-14 s.n. Contra Costa Mount Diablo. Comment
  JEPS111900  Eleocharis macrostachya D. G. Kelch 2005-3-24 05 .62 Contra Costa Point Pinole Southern Pt. Pinole 3 Comment
  JEPS99557  Eleocharis macrostachya Mary Bowerman 1977-6-11 Contra Costa Mount Diablo, Pine Creek at S end of Castle Rock Park. 182 Comment
  UC691971  Eleocharis macrostachya Mary L. Bowerman 1938-5-28 3645 Contra Costa Maple Spring, on upper margin, especially in the NW corner Mount Diablo Comment
  SEINET7714036  Ellisia chrysanthemifolia Chesnut, Drew 1889-4-15 Contra Costa Martinez Comment
  SBBG122783  Elodea canadensis B. Ertter, B. Olson 1991-9-28 10841 Contra Costa S end of San Pablo Reservoir, between Orinda and El Sobrante 91 Comment
  SEINET3874805  Elodea densa L. Thorne, N. Thorne 1987-9-20 s.n. Contra Costa The Delta Area, Frank's Tract. Plant growing in the water. Brazilian water-weed, used in aquariums.; 0 Comment
  UC756639  Elymus G. L. Stebbins Jr. 1946-6-9 3656 Contra Costa 2 mi e El Cerrito (near Mira Vista Country Club) Comment
  RSA108326  Elymus X gouldii Frank W. Gould 1941-5-8 1291 Contra Costa near Bay at Winehaven (near r Richmond); Altitude near sea level Comment
  RSA108337  Elymus X gouldii Frank W. Gould 1941-5-6 1288 Contra Costa 2.3 miles from Walnut Creek on Danville road. Comment
  UC692423  Elymus X saundersii Mary L. Bowerman 1935-6-1 3109 Contra Costa largest ridge between Ransom Point ridge and Mitchell-Pine divide; Mount Diablo 1066 Comment
  SEINET3929470  Elymus condensatus A. A. Beetle 1941-7-24 1751 Contra Costa Pt. Richmond on San Francisco Bay.; 0 Comment
  JEPS99567  Elymus elymoides Mary Bowerman 1975-6-7 Contra Costa Mount Diablo, by Big Spring trail. Comment
  UC2028395  Elymus elymoides var. elymoides Barbara Ertter with Richard K. Brummitt 1998-5-13 16141 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, south leg of Loughler Loop Trail just west of pass over central ridge, NW-facing slope Comment
  JEPS99562  Elymus glaucus Mary Bowerman 1995-7-2 Contra Costa Mount Diablo, (probably Back Canyon or foot trail to Donner Canyon). Comment
  UC691177  Elymus multisetus Mary L. Bowerman 1933-6-20 2325 Contra Costa Median Ridge (Donner Canyon) Mount Diablo (w face) Comment
  UCD62491  Elymus multisetus P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CDA2043  Elytrigia elongata T. C. Fuller 1961-9-13 7001 Contra Costa Hwy J4, ca. 4 miles southeast of Byron. 0 Comment
  UC1505156  Elytrigia pontica subsp. pontica S. W. Edwards 1984-7-29 84 -17 Contra Costa along hwy 4 at junction with Patterson Pass Rd (just s of Brentwood) Comment
  JEPS1564  Emmenanthe penduliflora W. L. Jepson 1920-8-12 9075 Contra Costa Mt. Diablo Comment
  JEPS68926  Epilobium brachycarpum Edward Lee 1934-9-30 1219 Contra Costa just se station (roadside); Moraga Comment
  CDA15837  Epilobium brachycarpum R. M. Case 1999-10-22 PDR 1206167 Contra Costa San Francisco Bay Area; near Walnut Creek. 0 Comment
  UC1606296  Epilobium campestre Barbara Ertter 1990-9-10 9635 Contra Costa s Martinez (junction of Alhambra Creek Trail and Old Briones Rd.); Briones Hills, Briones Regional Park, Maricich Lagoon 335 Comment
  CDA22547  Epilobium canum D. G. Kelch, Mike Park 2008-9-1 8 .296 Contra Costa Carquinez Strait; North of Waterbird Park along RR tracks. E of Martinez. Comment
  CDA38092  Epilobium canum A. G. Murdock 2003-9-12 197 Contra Costa Carquinez Strait Region; Crockett - Tormey Headlands. At Superfund overlook. Comment
  UC1745970  Epilobium canum subsp. canum Annetta M. Carter 1933-11-25 419 Contra Costa Mount Diablo Comment
  UC521671  Epilobium canum subsp. canum Joseph Andorfer Ewan 1933-10-15 8023 Contra Costa water tank at Indian Ceremonial Spr. Mt. Diablo Comment
  CAS-BOT-BC166827  Epilobium canum subsp. latifolium A. D. E. Elmer 1903-7-1 4620 Contra Costa Mount Diablo Comment
  UC2070464  Epilobium ciliatum subsp. ciliatum Barbara Ertter, Diane Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10699 Contra Costa Browns Island N of Pittsburg near confluence of Sacramento & San Joaquin rivers opposite Pittsburg Marina. Comment
  UCD105799  Epilobium ciliatum subsp. ciliatum Terri Williamson 1990-5-22 72 Contra Costa 212 Poshard St. Pleasant Hill. 12 Comment
  UC84478  Epilobium cleistogamum Katharine Curran Jun 1884 Contra Costa Antioch Comment
Read comments
Mar 27 2016
  JEPS99501  Epilobium minutum Mary L. Bowerman 1978-5-14 Contra Costa Mount Diablo. The old wagon rd. mines trail on E side of Eagle Peak. Comment
  UC1789099  Equisetum arvense Barbara Ertter 2005-8-18 18637 Contra Costa San Pablo Reservoir in East Bay Hills, east of San Pablo Dam Road between Richmond and Orinda (EBMUD water storage from Mokelumne River watershed); mudflats left by receding reservoir (being drained for seismic work on dam). Comment
  RSA309336  Equisetum hyemale var. affine Edward Lee, C. M. Belshaw 1935-7-28 1700 Contra Costa Western end of Las Trampas Ridge. 427 Comment
  CDA4553  Erechtites glomeratus D. G. Kelch 2005-5-5 5 .218 Contra Costa Carquinez Strait Region; Point Pinole - Giant Marsh. Giant Salt Marsh. Comment
  UC691864  Ericameria arborescens Mary L. Bowerman 1933-9-9 2438 Contra Costa ridge above Frog Pond; Mt. Diablo Comment
  CAS-BOT-BC131504  Ericameria arborescens H. E. McMinn 1922-3-1 394 Contra Costa Mt. Diablo, 2 or 3 miles from Tall Gate Comment
  CHSC39489  Ericameria linearifolia Tyler Williams; V. Oswald 1984-4-18 22 Contra Costa Mt. Diablo. At turnout ca. 4 yd n of South Park Rd., 0.2 mi sw of Junction Ranger Station in Mt. Diablo State Park. 579 Comment
  JEPS117962  Ericameria linearifolia Holly Forbes and Barbara Keller 2009-5-29 Contra Costa Mount Diablo State Park, along deer Flat Road, about 0.1 mi beyond Juniper Camp. Comment
  JEPS31296  Ericameria linearifolia W. L. Jepson 1891-5-23 Contra Costa Mt. Diablo Comment
  UCSB10767  Ericameria linearifolia Hayes, Judy 1961-3-30 Contra Costa 2 miles N of South Gate of Mt. Diablo State Park 457 Comment
  CAS-BOT-BC300590  Erigeron foliosus var. franciscensis L. R. Abrams 1916-6-30 5701 Contra Costa Mt. Diablo near lake Comment
  JEPS79321  Erigeron foliosus var. franciscensis Edward Lee with Annetta Carter 1935-8-17 1633 Contra Costa Antioch sand-dunes Comment
  UC691859  Erigeron foliosus var. franciscensis Mary L. Bowerman 1932-9-5 1550 Contra Costa e of the meridian Inner Black Hills; Mount Diablo, Inner Black Hills Comment
  UC1818984  Erigeron foliosus var. franciscensis Barbara Ertter 1994-6-26 12874 Contra Costa South of Point Molate Beach Park in west Richmond north of San Rafael Bridge, perennial grassland on bluff above beach between park and Point Castro. Comment
  CAS-BOT-BC295717  Erigeron petrophilus var. petrophilus Joseph Andorfer Ewan 1936-7-5 9735 Contra Costa Wildcat Creek Comment
  UC1181399  Eriodictyon californicum Jerry Powell 1960-5-24 Contra Costa hill between Canyon and Moraga (hill se of canyon); hill between Canyon and Moraga (hill se of canyon) Comment
  CAS-BOT-BC248088  Eriogonum angulosum H. M. Hall 1916-8-17 10276 Contra Costa Deer Valley 182 Comment
  JEPS112016  Eriogonum fasciculatum subsp. foliolosum Dean G. Kelch and Andrew G. Murdock 2004-3-19 AGM 233 Contra Costa Hercules - Carbon. Comment
  CAS-BOT-BC250381  Eriogonum gracile Mary L. Bowerman 1932-8-27 1524 Contra Costa Mount Diablo. South of Turtle Rock Comment
  UC1032304  Eriogonum gracile G. T. Nordstrom 1937-10-28 1409 Contra Costa 1.6 mi nne Somersville; Mt. Diablo Quadrangle Comment
  UC2029081  Eriogonum gracile Barbara Ertter with Joanne Kerbavaz and Mary Bowerman 2000-8-20 17510 Contra Costa north side Mount Olympia in Mount Diablo State Park, bulldozed site of former occupation at Zippe Spring. Comment
  UC692050  Eriogonum gracile var. gracile Mary L. Bowerman 1930-9-9 458 Contra Costa North Peak, Mount Diablo Mount Diablo; above Gabriel-Hinks'? Comment
  UC737822  Eriogonum luteolum var. luteolum R. F. Hoover 1940-11-23 4693 Contra Costa 8 mi e on Marsh Creek Road Clayton Comment
  CHSC20713  Eriogonum nudum var. auriculatum Robert A. Schlising 1963-7-13 2627 Contra Costa Along Grizzly Peak Blvd, Berkeley-Oakland Hills. Comment
  UC521722  Eriogonum nudum var. auriculatum Joseph Andorfer Ewan 1933-10-15 8032 Contra Costa sw slope Mt. Diablo Mt. Diablo Comment
  CAS-BOT-BC268905  Eriogonum nudum var. auriculatum H. E. McMinn No date on label 133 Contra Costa Collected from near summit of Mt. Diablo, N. slope Comment
  CAS-BOT-BC268913  Eriogonum nudum var. auriculatum Annetta Carter 1940-6-22 1601 Contra Costa Mount Diablo. Lime Ridge 274 Comment
  CAS-BOT-BC268914  Eriogonum nudum var. auriculatum John Thomas Howell 1929-9-21 4393 Contra Costa On Marsh Creek Road 8 miles se. of Clayton Comment
  RSA0027715  Eriogonum nudum var. auriculatum Barbara J. Ertter, Rich Rabeler, Tony Morosco 1997-6-10 15662 Contra Costa Point Richmond, crest of road. Comment
  UC1229891  Eriogonum nudum var. psychicola Jerry Powell 1962-8-19 308 Contra Costa about 2 mi e Antioch Comment
  SEINET3025701 Image available Eriogonum nudum var. psychicola Barbara J. Ertter 1997-8-18 15766 Contra Costa Antioch Dunes. Antioch Dunes (USFWS National Wildlife Refuge) on San Joaquin River east of Antioch, southwest corner of refuge north of railroad tracks in former vinyard. Comment
  UC692163  Eriogonum nudum var. pubiflorum Mary L. Bowerman 1930-9-9 451 Contra Costa above Gabriel-Hinks' (North Peak); Mount Diablo Comment
  POM89812  Eriogonum truncatum M. K. Curran 1886-05 s.n. Contra Costa Antioch Comment
  UC6492 Image available Eriogonum truncatum State Survey 1862-5-29 1186 Contra Costa Camp 71, Marsh's Ranch, Contra Costa Co. Comment
  CAS-BOT-BC262345  Eriogonum vimineum Joseph Andorfer Ewan 1933-10-15 8022 Contra Costa S.W. slope Mt. Diablo Comment
  CAS-BOT-BC298506  Eriophyllum confertiflorum L. Constance 1933-6-25 E 95 Contra Costa About halfway to the summit of Mount Diablo Comment
  UC507127  Eriophyllum confertiflorum var. confertiflorum Lincoln Constance 1933-6-25 E 95 Contra Costa about one - half way to the summit of Mt. Diablo (s slopes) Comment
  UC691725  Eriophyllum confertiflorum var. confertiflorum Mary L. Bowerman 1933-5-3 1968 Contra Costa due s of summit Mount Diablo 822 Comment
  UC691731  Eriophyllum confertiflorum var. confertiflorum Mary L. Bowerman 1933-6-3 2225 Contra Costa 2 mi by road from North Entrance; Mount Diablo Comment
  POM301037  Eriophyllum jepsonii Mary L. Bowerman 1936-5-6 3409 Contra Costa Uncle Sam Canyon 305 Comment
  CAS-BOT-BC300970  Eriophyllum lanatum var. achilleoides E. E. Stanford 1930-5-24 1513 Contra Costa Marsh Creek Canyon Comment
  JEPS34599  Eriophyllum lanatum var. achilleoides W. L. Jepson 1891-5-24 14563 Contra Costa Mt. Diablo Comment
  UC691687  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1933-5-3 1979 Contra Costa due s of summit Meridian peak; Mt. Diablo, Meridian Peak 731 Comment
  CAS-BOT-BC300975  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1930-6-28 388 Contra Costa Mount Diablo Comment
  CAS-BOT-BC300980  Eriophyllum lanatum var. achilleoides L. Constance 1933-6-25 E 97 Contra Costa South slope, 1 mile below summit of Mt. Diablo Comment
  LA203600  Eriophyllum lanatum var. achilleoides Lincoln Constance; 1933-6-25 E 94 Contra Costa Mount Diablo, near the southeastern base Comment
  UC134928  Eriophyllum lanatum var. achilleoides Katharine Brandegee 1907-6-16 Contra Costa hills near Antioch Comment
  UC507051  Eriophyllum lanatum var. achilleoides H. K. Sharsmith and C. W. Sharsmith 1933-4-30 E 17 Contra Costa Black, Hills; Mount Diablo 304 Comment
  JEPS19402  Eriophyllum staechadifolium G. Thomas Robbins 1937-4-17 124 Contra Costa cliffs above San Francisco Bay near Point Richmond Comment
  UC1584825  Eriophyllum staechadifolium Jerry Powell 1987-7-14 1504 Contra Costa sandstone bluff and back edge of point Molate Beach Comment
  UC1795733  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
  UC1948936  Erodium cicutarium William J. Ferlatte, L. Maynard Moe 1970-4-27 1263 Contra Costa San Francisco Bay: Red Rock Island 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
  UC17071  Erodium macrophyllum W. H. Brewer 1862-5-10 1067 Contra Costa near Kirker Pass Comment
  UC202739  Erodium macrophyllum Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  UC2032835  Erodium moschatum Doran, Andrew Scott 2012-3-20 705 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  UC692705  Erodium moschatum Mary L. Bowerman 1931-4-4 655 Contra Costa 4.5 mi from entrance Mount Diablo (west road) Comment
  UCD103262  Erodium moschatum P. B. Kennedy 1925-4-26 s.n. Contra Costa Mt. Diablo. Comment
  JEPS15863  Eryngium aristulatum var. aristulatum W. L. Jepson 1894-9-7 14282 Contra Costa foot of sharp canyon e. of Bald Peak at Orinda; Berkeley Hills 121 Comment
  UC21040  Eryngium aristulatum var. aristulatum Jos. Burtt Davy 1900-6-7 6660 Contra Costa near Martinez Comment
  POM312389  Eryngium aristulatum var. aristulatum S. Galen Smith, Peter Kamb, Francia Chisaki 1951-4-14 433 Contra Costa Small pond 7 miles north of Walnut Creek, east of Highway 21, 0.2 mile south intersection with Highway 4 Comment
  SEINET10693587 Image available Eryngium aristulatum var. aristulatum Willis L. Jepson 1895-9-1 Jepson s.n. Contra Costa Orinda Park. Comment
  UC1584829  Eryngium articulatum Jerry Powell 1990-8-29 1587 Contra Costa Antioch Nat'l Wildlife Refuge Comment
  UC691871  Eryngium castrense Mary L. Bowerman 1935-6-28 3174 Contra Costa s. Meridian Peak summit (300 yds. e. of meridian fence line); Mt. Diablo 487 Comment
  CAS-BOT-BC124232  Eryngium jepsonii Willis Linn Jepson 1895-9-1 s.n. Contra Costa Orinda Park Comment
  CDA38311  Eryngium spinosepalum H. Van Brocklin 1958-6-1 s.n. Contra Costa Byron. 0 Comment
  JEPS97706  Eryngium vaseyi Annetta M. Carter, Tom Morley, Malcolm Nobs 1951-3-25 3006 Contra Costa 3.3 mi. S of Byron. Comment
  UC1122965  Eryngium vaseyi B. Schreiber 1937-6-12 2400 Contra Costa Byron Byron Quad., Byron 15 Comment
  UC1190973  Eryngium vaseyi Lincoln Constance, Reino Alava and Rimo Bacigalupi 1958-6-6 3661 Contra Costa 3 mi. s.e. Byron; San Joaquin Valley 10 Comment
  UC1487327  Eryngium vaseyi Yusuf Sheikh 1974-5-5 587 B Contra Costa 2.1 mi. s.e. of Byron Post sign on rd. J4 Byron (3.1 mi. s.e. of intersection with Camino Diablo) Comment
  SEINET13944077 Image available Eryngium vaseyi Lincoln Constance, Reino Alava & Rimo Bacigalupi 1958-1 3661 Contra Costa open country 3 miles southeast of Byron, San Joaquin Valley. Elev ca 35 ft 11 Comment
  CAS-BOT-BC40761  Erysimum capitatum Alice Eastwood 1915-5-30 4484 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC40764  Erysimum capitatum Alice Eastwood 1921-4-18 10285 Contra Costa Antioch. Comment
  UC1126602  Erysimum capitatum R. C. Wilson 1935-3-28 152 Contra Costa 1 mi s Mount Diablo; Mt. Diablo Quadrangle Comment
  UC691074  Erysimum capitatum Mary L. Bowerman 1935-4-26 2915 Contra Costa w ridge west of Indian Ceremonial Spring (just below Old Stage Rd); Mount Diablo 1005 Comment
  UC691082  Erysimum capitatum Mary L. Bowerman 1931-3-7 551 Contra Costa Indian Ceremonial Springs Mount Diablo Comment
  UCD114997  Erysimum capitatum var. capitatum R. F. Hoover 1935-3-10 s.n. Contra Costa Antioch. Comment
  SEINET14046171 Image available Erythranthe guttata Lewis S. Rose 1941-1 41064 Contra Costa 2 mi. w. of Byron. 46 Comment
  UC2046330  Erythranthe guttata Barbara Ertter with Alan Prather 2003-6-7 18201 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, creek alongside west end Stone Corral Trail, south of Highland Ridge Trail junction. Comment
  CAS-BOT-BC402980  Eschscholzia californica Mary L. Bowerman 1933-5-3 1975 Contra Costa Mount Diablo. Due south of Meridian Peak summit 731 Comment
  SEINET11263885  Eschscholzia californica Barbara Ertter, Tony Morosco 1996-7-27 15039 Contra Costa Cardinet Oaks Road at crossing of Donner Creek.; 0 335 Comment
  UC118493  Eschscholzia californica T. S. Brandegee May 1883 Contra Costa Antioch Comment
  CAS-BOT-BC402985  Eschscholzia californica A. A. Heller 1908-4-16 8891 Contra Costa Hills east of Antioch 22 Comment
  UC125913  Eschscholzia californica Katharine Brandegee 1907-6-16 Contra Costa bet. Antioch and Marsh Creek Comment
  OBI69745  Eucalyptus pulverulenta Jenn Yost & Matt Ritter, Matt Ritter 2008-11-15 362 Contra Costa Dan Sekella's House at 1410 Mohr Ct, Walnut Crk Comment
  CDA1171  Eucrypta chrysanthemifolia D. Kelch 1998-5-14 8 Contra Costa Mount Diablo; South slope of hill west of Mt. Zion. Comment
  CDA18018  Euphorbia oblongata R. Fonseca 1999-5-27 PDR 1219265 Contra Costa Along Franklin Canyon Rd, Martinez. 0 Comment
  CDA7731  Euphorbia oblongata Deviney 2008-4-18 PDR# 1454510 Contra Costa Carquinez Strait; Pacheco, Waterbird Way X Hwy 680 0 Comment
  JEPS100097  Euphorbia oblongata G. Smick 2003-5-6 GAS 173 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111951  Euphorbia oblongata D. G. Kelch 2004-6-6 04 .224 Contra Costa Martinez - Train Station Downtown Martinez. Alhambra Creek near bay and railroad Station 2 Comment
  UC1276068  Euphorbia oblongata T. C. Fuller 1959-6-25 2679 Contra Costa ca 4 mi w Martinez; Alhambra Valley Comment
  UCR247571  Euphorbia oblongata Deviney 2008-4-18 s.n. Contra Costa Pacheco, Waterbird Way and Hwy 680 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
  UC2028954  Euphorbia serpens Barbara Ertter 2000-7-16 17387 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park. Comment
  JEPS68932  Euthamia occidentalis Edward Lee 1934-9-30 1229 Contra Costa Moraga; just sw of station, tule swamp Comment
  CAS-BOT-BC278272  Festuca californica J. W. Congdon 1896-5-29 s.n. Contra Costa Mt Diablo Comment
  CHSC116605  Festuca microstachys var. pauciflora Lowell Ahart; Josephine Guardino 2016-4-19 20792 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along south side of road exit at Los Vaqueros Marina, 2.3 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  CDA28219  Festuca rubra A. G. Murdock, D. G. Kelch 2004-5-28 269 Contra Costa Carquinez Strait Region; Pinole Peak. Comment
  UCD66332  Festuca rubra P. B. Kennedy 1919-5-1 s.n. Contra Costa North Berkeley. Hills. Comment
  JEPS100135  Foeniculum vulgare A. Langston 2003-7-28 AL 79 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  POM203448  Forestiera pubescens J. T. Howell 1933-3-29 10905 Contra Costa Canyon below Nortonville Comment
  CDA8373  Frankenia salina A. G. Murdock, D. G. Kelch 2005-3-24 319 Contra Costa Carquinez Strait; Point Pinole. Comment
  JEPS68930  Frankenia salina Edward Lee 1934-9-30 1226 Contra Costa Moraga, just se of station Moraga Comment
  CDA39689  Fraxinus latifolia D. G. Kelch 2003-8-13 3 .143 Contra Costa Carquinez Strait; Pinole Creek. Comment
  CAS-BOT-BC136074  Fritillaria affinis Lewis S. Rose 1934-3-7 34047 Contra Costa Mt. Diablo Comment
  JEPS61961  Fritillaria affinis W. L. Jepson 1921-5-22 9218 Contra Costa Mount Diablo, half way up Mount Diablo Comment
  CAS-BOT-BC136072  Fritillaria affinis Dean William Taylor 1971-3-28 971 Contra Costa Along Morgan Territory Road 304 Comment
  CAS-BOT-BC136073  Fritillaria affinis Dean William Taylor 1971-3-28 971 Contra Costa Along Morgan Territory Road 304 Comment
  UCD121557  Galium andrewsii P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  SEINET11170982  Galium andrewsii M. S. Baker 1904-6-24 s.n. Contra Costa Near Summit of Mt. Diablo, Mitchel Canyon Trail Comment
  JEPS124467  Galium andrewsii subsp. gatense Daniel Slakey with CNPS Volunteers 2015-7-6 140 Contra Costa Mt. Diablo, along Oak Knoll Trail about 700 meters east of Summit Rd. Comment
  JEPS7032  Galium andrewsii subsp. gatense Mary L. Bowerman 1930-6-7 283 Contra Costa Meridian Peak summit Mount Diablo Comment
  UC2042798  Galium murale Barbara Ertter 1991-6-1 10071 Contra Costa Las Trampas Regional Wilderness in hills W of Danville, paved portion of Rocky Ridge Trail ca. 1 from parking lot. Comment
  UCSB6254  Galium nuttallii subsp. nuttallii Keator, Glenn 1959-7-1 Contra Costa Laurel camp on Mt. Diablo Comment
  UC2027970  Galium parisiense Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15660 Contra Costa North base of Mount Diablo, lower end of Mitchell Canyon. Comment
  UC2028293  Galium parisiense Barbara Ertter with Dan Norris 1998-6-18 16221 Contra Costa West of Rock City area on south side of Mount Diablo, saddle on W Fossil Ridge Trail. Comment
  JEPS112101  Galium porrigens var. porrigens D. G. Kelch 2003-4-3 03 .357 Contra Costa Cummings Skyway 134 Comment
  JEPS19407  Galium porrigens var. porrigens G. Thomas Robbins 1937-4-17 116 Contra Costa near Point Richmond Comment
  JEPS52754  Galium porrigens var. porrigens Lauramay T. Dempster 1963-5-30 3805 Contra Costa 15 El Toyonal Orinda 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
  UC1562738  Galium porrigens var. porrigens Barbara Ertter with John Little 1989-4-2 8106 Contra Costa n end El Cerrito, Hillside Park (level portions of old road) Comment
  UC579540  Galium tricornutum C. M. Belshaw 1936-5-13 2124 Contra Costa s Horse Valley (ne of Mt. Diablo); Mt. Diablo Quadrangle 121 Comment
  JEPS111704  Gamochaeta pensylvanica D. G. Kelch 2004-5-2 04 .172-B Contra Costa Crockett - Edwards Canyon Edwards Canyon 112 Comment
  JEPS77009  Garrya elliptica Robert M. Lloyd 1963-3-17 2137 Contra Costa across from 7090 Skyline Drive (0.5 mi e of intersection of Grizzly Peak Road and Skyline Drive, on Skyline Drive, Huckleberry Trail); Skyline Drive, Huckleberry Trail Comment
  JEPS77010  Garrya elliptica Robert M. Lloyd 1963-3-17 2137 Contra Costa 0.5 mi e Grizzly Peak Road intersection with Skyline Drive (on Skyline Drive, across from 7090 Skyline, Huckleberry trail) Comment
  UC634790  Garrya flavescens H. L. Mason 1926-3-7 2711 Contra Costa Mount Diablo Comment
  UC876007  Garrya flavescens Lewis S. Rose 1941-3-22 41054 Contra Costa near summit Mt. Diablo 1188 Comment
  CAS-BOT-BC169945  Garrya fremontii H. E. McMinn 1922-6-2 88 Contra Costa Summit of Mt. Diablo Comment
  CAS-BOT-BC282608  Gastridium phleoides Mary L. Bowerman 1933-5-25 2190 Contra Costa Oyster Ridge, west end of south face, Mount Diablo Comment
  CDA4659  Geranium dissectum D. G. Kelch, A. G. Murdock 2003-3-28 3 .089 Contra Costa Carquinez Strait Region; Rodeo - Lone Tree Point. Comment
  JEPS100093  Geranium dissectum S. O'Neil 2003-2-18 SEO 1 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111978  Geranium dissectum D. G. Kelch 2003-3-28 03 .89 Contra Costa Rodeo - Lone Tree Point 2 Comment
  UC692706  Geranium dissectum Mary L. Bowerman 1930-6-28 401 Contra Costa Lower Silver Spring Mount Diablo Comment
  UC1057453  Geranium dissectum G. Thomas Robbins 1937-4-25 142 Contra Costa e of La Vista Comment
  JEPS111972  Geranium molle D. G. Kelch 2004-5-9 04 .203 Contra Costa Crockett - Edwards Canyon Upper Edwards Canyon 160 Comment
  JEPS111980  Geranium molle D. G. Kelch 2003-3-21 03 .68 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 2 miles west of Martinez Contra Costa County CA. Grassy hill above cottonwood tree. Just south of end gate of Carquinez Scenic Drive 40 Comment
  RSA0029464  Geranium purpureum Barbara Ertter 2001-5-23 17651 Contra Costa Campus of UC Berkeley, southwest corner of Haviland Hall. Comment
  UC1719978  Geranium purpureum Barbara Ertter 2000-5-14 17012 Contra Costa Mount Diablo Regional Park, Falls Trail at Donner Creek crossing 487 Comment
  JEPS111982  Geranium robertianum D. G. Kelch 2005-5-13 05 .254 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Area along Vista Road ~ 2.5 kiloms West of Martinez 45 Comment
  CDA28932  Geranium rotundifolium D. G. Kelch 2009-6-7 9 .351 Contra Costa Carquinez Strait; Crockett, under Zampa Bridge on N facing slope. Comment
  UC2031458  Gilia achilleifolia subsp. achilleifolia Barbara Ertter with David Gowen 2014-4-12 21716 Contra Costa On north side of Prospectors Gap Road ca. 1 mile east of Mount Diablo summit Comment
  UC2022570  Gilia achilleifolia subsp. multicaulis Lewis S. Rose 1934-3-21 34067 Contra Costa 6 mi E of Clayton. Comment
  UC903221  Gilia capitata subsp. staminea Ethel Crum 1936-4-5 1746 Contra Costa two mi w Byron; South Coast Ranges, w of Byron 45 Comment
  UC932019  Gilia capitata subsp. staminea Verne Grant, Alva Grant 1947-4-13 7925 Contra Costa sand hills by railroad tracks e Antioch; e of Antioch Comment
  UC52464  Gilia clivorum H. M. Hall 1901-3-17 1652 Contra Costa Point Richmond Region of San Francisco Bay, Point Richmond Comment
  UC691671  Gilia clivorum Mary L. Bowerman 1931-3-21 604 Contra Costa e end Fossil Ridge , Fossil Ridge, e end (Mount Diablo) Comment
  UC691679  Gilia clivorum Mary L. Bowerman 1935-4-17 2840 Contra Costa North Road 2 mi from North Gate (Mount Diablo); , North Road 289 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
  RSA63910  Gilia clivorum Verne Grant, Alva Grant 1948-5-21 8536 Contra Costa Game reserve on east slope of Grizzly Peak. Comment
  UC2027715  Gilia clivorum Barbara Ertter with Stu Garrett 1997-3-29 15524 Contra Costa West side Mount Diablo, Burma Road above North Gate Road. Comment
  UC2027799  Gilia clivorum Barbara Ertter with Mary Bowerman, Lisa Schultheis 1995-3-31 13946 Contra Costa Mount Diablo State Park, steep west-facing bank with outcrops near weir at mouth of Mitchell Canyon Comment
  CHSC21634  Gilia tricolor Willis Ball 1975-3-9 489 Contra Costa Contra Loma Regional Park. In area #8. Level mound ca. 450 yds s of main parking lot ca. 750 yds w of Contra Loma Blvd. 76 Comment
  RSA49035  Gilia tricolor Verne Grant, Alva Grant 1949-3-30 8640 Contra Costa 4 miles west of Byron on Marsh Creek road. Comment
  SEINET12278815  Gilia tricolor J. G. Lemmon 1878-1 s.n. Contra Costa side of Mt. Diablo Comment
  UC23867  Gilia tricolor subsp. tricolor McLean March 1875 Contra Costa Concord Comment
  CDA27056  Glycyrrhiza lepidota D. G. Kelch, A. G. Murdock 2004-6-6 4 .222 Contra Costa Carquinez Strait Region; Downtown Martinez. Alhambra Creek near bay and railroad station. Comment
  JEPS99527  Gnaphalium palustre Mary L. Bowerman 1975-9-14 Contra Costa Mount Diablo, in mud of rivulent leading into Sheepherder's Pond from the spring. Comment
  POM721360  Gnaphalium stramineum Barbara Ertter, Richard K. Rabeler 1994-6-6 12817 Contra Costa Point Isabel in S Richmond; on old railroad bed north of Costco. Comment
  CDA6050  Grindelia X paludosa D. G. Kelch, A. G. Murdock 2003-8-13 3 .103 Contra Costa Carquinez Strait Region; Martinez Marsh. Comment
  RSA97489  Grindelia camporum L. S. Rose 1954-9-27 54116 Contra Costa Byron. 6 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-BC305237  Grindelia hirsutula Lewis S. Rose 1954-9-27 54116 Contra Costa Byron 6 Comment
  JEPS40435  Grindelia hirsutula William Turner 1965-11-23 Contra Costa in the sand hills just e Antioch (along the San Joaquin River); , in the Antioch sand hills Comment
  JEPS41884  Grindelia hirsutula W. L. Jepson 1895-9-14 Contra Costa Walnut Creek Comment
  JEPS78613  Grindelia hirsutula Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3297 Contra Costa Browns Island Botany Cove, Browns Island Comment
  JEPS89200  Grindelia hirsutula G. Thomas Robbins 1958-10-2 3941 Contra Costa borders of tidal slough along Southern Pacific R.R. just w Carlson Blvd. (near Stege railroad siding); Richmond Comment
  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-BC305239  Grindelia hirsutula H. E. McMinn No date on label 138 Contra Costa Above Richmond ferry slip Comment
  CAS-BOT-BC305241  Grindelia hirsutula John Thomas Howell 1929-9-21 4396 Contra Costa Marsh Creek Road 3.5 miles sw. of Brentwood Comment
  CAS-BOT-BC305248  Grindelia hirsutula John Thomas Howell 1930-9-28 5486 Contra Costa Tunnel Road near Oak Spring Comment
  UC2027746  Grindelia hirsutula Barbara Ertter 1997-1-5 15434 Contra Costa Ygnacio Valley Road crossing Lime Ridge on northwest side of Mount Diablo. Comment
  UC1292655  Guillenia flavescens A. R. Kruckeberg 1949-4-16 1735 Contra Costa 2 mi inside old North Entrance (not tollgate); Mount Diablo State Park Comment
  UC1736552  Guillenia flavescens Dean W. Taylor 1994-3-30 14108 Contra Costa Mt. Diablo (in Mt. Diablo State Park), 2 miles South along North Gate Road from the North Gate kiosk, 365 Comment
  UC796509  Guillenia flavescens Reed C. Rollins 1946-3-25 3046 Contra Costa w slope Mount Diablo Comment
  UC691126  Guillenia lasiophylla Mary L. Bowerman 1930-6-7 291 Contra Costa Meridian Peak summit Mount Diablo Comment
  CAS-BOT-BC304576  Gutierrezia californica Lewis S. Rose 1932-10-2 32655 Contra Costa Marsh Creek Road Comment
  CAS-BOT-BC304578  Gutierrezia californica Peter Rubtzoff 1954-9-14 1750 Contra Costa Along lower San Joaquin River, east of Antioch Comment
  UC697195  Gutierrezia californica Mary L. Bowerman 1938-11-12 3729 Contra Costa toward crest of hillside n Lime Ridge; Mount Diablo, Lime Ridge 152 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
  POM301854  Gutierrezia californica Mary L. Bowerman 1938-11-12 3729 Contra Costa Lime Ridge toward crest of hillside N of break between 2 chaparral patches. 152 Comment
  UCD85227  Hainardia cylindrica Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  SEINET10893043  Hainardia cylindrica E. E. Stanford 1930-5-16 Stanford 1485 Contra Costa Near Old River. Levee. Comment
  UC1050778  Hebe laevis N. Floy Bracelin 1943-6-6 2147 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  UC1795862  Hedera helix Barbara Ertter 1994-10-23 13915 Contra Costa Southwest El Cerrito, north edge Breuner's parking lot, northwest of Albany Hill. Comment
  CAS-BOT-BC309405  Helenium puberulum L. R. Abrams 1910-10-8 4343 Contra Costa Mt Diablo 609 Comment
  UC566690  Helenium puberulum H. L. Mason 1924-11-23 1162 Contra Costa Las Trampas Creek 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
  JEPS85476  Helianthella castanea Leonora M. Ellis 1990-5-11 Contra Costa w Alamo (Horseman's Canyon and canyon to the w); Tice Valley 228 Comment
  UC1819046  Helianthella castanea Barbara Ertter, Lisa Schultheis 1995-4-27 14016 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; north-facing open brushy slope with scattered oaks along extension of Valley View road. 182 Comment
  UC2013032  Helianthella castanea Barbara Ertter with Travis Columbus 1990-6-10 9107 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill; E-facing steep hillside above junction of Spengler and Blue Oaks trails. Comment
  CAS-BOT-BC305671  Helianthus gracilentus Mary L. Bowerman 1932-10-1 1602 Contra Costa Mount Diablo. Mitchell Canyon Comment
  UC407041  Heliotropium curassavicum Ira L. Wiggins 1930-4-18 4606 Contra Costa Jersey Isl. Comment
  UC1050535  Helleborus orientalis N. Floy Bracelin 1944-2-2 1942 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC697141  Helminthotheca echioides Mary L. Bowerman 1936-10-24 3583 Contra Costa Mount Diablo, North Road 131 Comment
  CAS-BOT-BC305876  Helminthotheca echioides Walter Knight; Irja Knight 1978-8-14 3160 Contra Costa Browns Island Comment
  CDA37817  Hemizonia congesta Godwyn 2012-6-22 PDR# 1641308 Contra Costa Pleasanton; 7300 Camino Tassajara. 0 Comment
  UC201235  Hemizonia congesta subsp. lutescens H. M. Hall 1914-8-23 9860 Contra Costa 2 km nw San Pablo 15 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
  CDA7025  Hemizonia congesta subsp. luzulifolia D. G. Kelch, A. G. Murdock 2004-7-9 4 .294 Contra Costa Carquinez Strait Region; Crockett - Carquinez Scenic Drive. East of Crockett West of Bull Valley SA. Comment
  JEPS12596  Hemizonia congesta subsp. luzulifolia R. F. Hoover 1939-4-25 4061 Contra Costa Richmond Hills Comment
  JEPS38255  Hemizonia congesta subsp. luzulifolia W. L. Jepson 1940-6-5 19935 Contra Costa Richmond Comment
  UC201236  Hemizonia congesta subsp. luzulifolia H. M. Hall 1914-8-23 9858 Contra Costa Richmond Region of San Francisco Bay, Richmond Comment
  CAS-BOT-BC314850  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-BC314855  Hemizonia congesta subsp. luzulifolia Mary L. Bowerman 1931-10-13 1061 Contra Costa Sycamore Valley west of Sycamore Creek, Mount Diablo Comment
  CAS-BOT-BC314861  Hemizonia congesta subsp. luzulifolia Mary L. Bowerman 1931-10-13 1061 Contra Costa Sycamore Valley west of Sycamore Creek, Mount Diablo Comment
  CAS-BOT-BC314866  Hemizonia congesta subsp. luzulifolia John Thomas Howell 1925-12-6 1612 Contra Costa Ridge between Redwood Canyon and San Leandro Canyon, Oakland Hills Comment
  CAS-BOT-BC314868  Hemizonia congesta subsp. luzulifolia Jean L. Pawek 1964-8-29 608 Contra Costa Tilden Park Comment
  UC990629  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1909-9-24 Contra Costa San Ramon Road above Hayward (canyon) Comment
  SEINET8734812 Image available Hemizonia fitchii L. S. Rose 1941-1 41464 Contra Costa 1 mile east of Walnut Creek 50 Comment
  RSA103865  Hemizonia kelloggii M. K. Curran 1886-04 95 Contra Costa Antioch. Comment
  POM52253  Hemizonia pungens subsp. pungens A. D. E. Elmer 1903-05 4892 Contra Costa Walnut Creek Comment
  UC901877  Heracleum lanatum L. Constance 1950-6-25 3326 Contra Costa s. rim Wildcat Canyon (Tilden Park); , Tilden Park 365 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
  JEPS111922  Hesperocnide tenella Dean G. Kelch and Andrew G. Murdock 2004-3-5 AGM 213 Contra Costa Martinez - Rankin Open Space. Comment
  UC2070646  Hesperocnide tenella Barbara Ertter 2003-3-28 18117 Contra Costa Round Valley Regional Preserve, ca 1 mile west of trailhead. Comment
  CAS-BOT-BC167427  Hesperolinon breweri T. S. Brandegee 1884-5-1 s.n. Contra Costa Near Antioch Comment
  CAS-BOT-BC167429  Hesperolinon breweri Robert F. Hoover 1939-5-20 4106 Contra Costa Head of Markley Canyon Comment
  CAS-BOT-BC167442  Hesperolinon breweri Herbert L. Mason 1936-6-14 s.n. Contra Costa Ridge running south of Mount Diablo, head of Marsh Creek Comment
  JEPS122864  Hesperolinon breweri Adam C. Schneider with Yuri P. Springer 2014-5-16 591 Contra Costa Along hills west of Los Vaqueros Reservoir. Comment
  RSA102173  Hesperolinon breweri M. K. C. 1885-06 s.n. Contra Costa Antioch Comment
  RSA135385  Hesperolinon breweri Volney Rattan 1886-06 s.n. Contra Costa Mount Diablo Comment
  UC558458  Hesperolinon breweri Herbert L. Mason 1936-6-14 Contra Costa ridge running s Mount Diablo (head of Creek); Marsh Creek Comment
  UC692695  Hesperolinon breweri Mary L. Bowerman 1933-6-7 2254 Contra Costa North Peak Ridge Mount Diablo 1005 Comment
  UC692702  Hesperolinon breweri Mary L. Bowerman 1930-6-22 356 Contra Costa Mitchell Canyon Mount Diablo Comment
  CAS-BOT-BC167443  Hesperolinon breweri Mary L. Bowerman 1933-6-7 2254 Contra Costa North Peak Ridge, exposure south. Mount Diablo 1005 Comment
  CAS-BOT-BC167444  Hesperolinon breweri Walter Knight; Irja Knight 1973-5-31 s.n. Contra Costa In the Nortonville coal mine area 341 Comment
  UC2028990  Hesperolinon breweri Barbara Ertter 2000-5-14 17000 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
  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
  SJSU764  Hesperolinon californicum D. Bernsdorf 1942-5-30 Contra Costa Mt Diablo Comment
  UC2062655  Hesperolinon californicum Barbara Ertter with John Ginochio 2002-6-1 17940 Contra Costa Ginochio Ranch in Arroyo del Cerro NW side of Mount Diablo, connector road between Government Road and Olofson Homestead. Comment
  CAS-BOT-BC422501  Hesperomecon linearis A. A. Heller 1908-4-16 8890 Contra Costa East of Antioch 22 Comment
  POM149311  Hesperomecon linearis C. F. Baker 1903-4-25 2802 Contra Costa Antioch. Comment
  UC194136  Hesperomecon linearis Edward Lee Greene 1887-4-15 Contra Costa Antioch Comment
  UC2028265  Heterocodon rariflorum Barbara Ertter 1999-6-12 16715 Contra Costa West Branch Alamo Creek on south flank of Mount Diablo, along unofficial path running from north spur of Black Hawk Ridge Road to south spur off of Knob Cone Point Road (near powerline). Comment
  JEPS99982  Heteromeles arbutifolia G. Smick 2003-2-20 GAS 50 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC87450  Heterotheca oregona var. scaberrima J. W. Congdon Sep 1886 Contra Costa Comment
Read comments
Apr 23 2007
  JEPS79319  Heterotheca sessiliflora subsp. echioides Edward Lee with Annetta Carter 1935-8-17 1624 Contra Costa Antioch; sand-dunes Comment
  UC2028291  Heuchera micrantha Barbara Ertter, Dan Norris 1998-6-18 16226 Contra Costa Lower Devil's Slide trail along W Fork Sycamore Creek (madrone Canyon), south side of Mount Diablo. Comment
  UC691425  Hieracium albiflorum Mary L. Bowerman 1930-10-19 488 Contra Costa s road at Garden-of-the-Gods; Mount Diablo Comment
  UC16313  Hoita orbicularis McLean March, 1875 Contra Costa Mt. Diablo Comment
  JEPS129820  Holcus lanatus Dean G. Kelch and Andrew G. Murdock 2005-6-24 05 .386 Contra Costa Crockett - 5th St. Prairie. Comment
  CDA23596  Holocarpha heermannii D. G. Kelch 2007-10-6 7 .63 Contra Costa Carquinez Strait; Fernandez Ranch. Muir Land Trust Property 4.5 km W of Rodeo. Comment
  JEPS111679  Holocarpha heermannii D. G. Kelch 2003-8-13 03 .129 Contra Costa Pig Sale 250 Comment
  UC1619971  Holocarpha heermannii Barbara Ertter 1990-9-10 9641 Contra Costa Briones Hills s of Martinez (throughout Briones Regional Park); Briones Regional Park, Briones Hills Comment
  CAS-BOT-BC325826  Holocarpha heermannii Lewis S. Rose 1941-10-13 41465 Contra Costa 1 mile east of Walnut Creek 50 Comment
  CAS-BOT-BC325828  Holocarpha heermannii David D. Keck 1933-11-2 2622 Contra Costa 5 mi. S.E. of Clayton on Marsh Creek Road opposite Mt. Diablo Comment
  CAS-BOT-BC325832  Holocarpha heermannii John Thomas Howell 1930-9-28 5499 Contra Costa 6.3 miles from Byron on teh Marsh Creek Road Comment
  CAS-BOT-BC325833  Holocarpha heermannii John Thomas Howell 1929-9-21 4389 Contra Costa 5 miles se. of Clayton on Marsh Creek Road Comment
  CAS-BOT-BC325834  Holocarpha heermannii Lewis S. Rose 1932-10-2 32667 Contra Costa Walnut Creek Comment
  RSA128986  Holocarpha heermannii Peter H. Raven 1950-7-5 2484 Contra Costa Deer Ridge, Mt. Diablo. 884 Comment
  UC2012985  Holocarpha heermannii Barbara Ertter with Lisa Schultheis 1996-9-2 15276 Contra Costa South side of Mount Diablo, west end of Blackhawk Ridge. Comment
  RSA0008457  Holocarpha macradenia David Powers 1974-10-6 1001 Contra Costa Pinole, 100-300 feet east of Hwy 80 and 100-300 yards south of Appian Way Comment
  UCD133201  Holocarpha macradenia Walter Knight; Irja Knight 1978-8-8 3101 Contra Costa southeast corner of Interstate 80 and Appian Way, 1 mile north of El Sobrante. Comment
  CAS-BOT-BC320246  Holocarpha obconica L. S. Rose 1941-10-16 41466 Contra Costa 6 miles west of Byron, on the Marsh Creek Road 33 Comment
  CAS-BOT-BC320239  Holocarpha obconica L. R. Abrams 1917-9-13 6723 Contra Costa Patterson Pass - east side Comment
  CAS-BOT-BC320241  Holocarpha obconica Margi Oard 1988-10-9 s.n. Contra Costa Ca. 2 miles east of junction with Deer Valley Road along north side of Marsh Creek Road Comment
  CAS-BOT-BC320248  Holocarpha obconica John Thomas Howell 1930-9-28 5501 Contra Costa On the Marsh Creek Road, 5.4 miles from Byron Comment
  POM298344  Holocarpha obconica subsp. autumnalis D. D. Keck 1933-11-2 2621 Contra Costa Deer Valley, 0.5 mile S of road to Brentwood. Comment
  LA27067  Holocarpha virgata Lewis S. Rose; 1941-10-16 41467 Contra Costa 2 mi. W of Byron 33.0 Comment
  CAS-BOT-BC324615  Holocarpha virgata L. R. Abrams 1916-7-1 5725 Contra Costa Road between Walnut Creek Comment
  POM299471  Holocarpha virgata subsp. virgata L. S. Rose 1941-10-16 41467 Contra Costa 2 miles W of Byron. 33 Comment
  JEPS112072  Holodiscus discolor A. G. Murdock 2004-5-28 274 Contra Costa Pinole Peak 205 Comment
  JEPS112080  Holodiscus discolor D. G. Kelch 2003-8-13 03 .125 Contra Costa Vaca Canyon 165 Comment
  SEINET4090611  Holodiscus discolor B. C. Templeton 1962-1 sn Contra Costa Mountain Diablo. Comment
  CAS-BOT-BC152590  Holodiscus discolor var. discolor Bonnie Templeton 1962-6-10 s.n. Contra Costa Mt. Diablo Comment
  RSA0016873  Hordeum brachyantherum H. de Forest 1930-5-7 s.n. Contra Costa Road near Morage. Comment
  CAS-BOT-BC281257  Hordeum brachyantherum subsp. brachyantherum John Thomas Howell 1933-5-14 11229 Contra Costa St. Mary's College Comment
  LA14687  Hordeum jubatum H. S. Yates; 1936-8-11 6075 Contra Costa Baxter Creek 1280 Comment
  CDA37284  Hordeum marinum subsp. gussoneanum D. G. Kelch 2011-3-31 11 .07 Contra Costa Carquinez Strait Region; Richmond, near Point Pinole Regional Park. Comment
  SEINET4182779 Image available Hordeum marinum subsp. gussoneanum Barbara Ertter, Jim Jokerst, Dave Magney 1989-4-5 8140 Contra Costa Alkali sink West and adjacent Clifton Court Forebay, circa 15 air miles Southwest of Stockton 0 Comment
  UCD85917  Hordeum murinum subsp. glaucum A. A. Beetle 1942-3-22 2924 Contra Costa Taber Island. Small island off NW side of Brooks Island in San Francisco Bay. Comment
Read comments
Aug 20 2011
  CDA29160  Hordeum murinum subsp. leporinum D. G. Kelch 2006-5-7 6 .145 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  SEINET11263166  Horkelia californica subsp. dissita Barbara Ertter, Chris Thayer 1996-10-25 15385 Contra Costa West side of Mount Diablo, North Gate Road 1.0 roadmiles NW of Junction, spring near road.; 0 579 Comment
  CAS-BOT-BC55476  Hornungia procumbens Alice Eastwood 1914-3-14 s.n. Contra Costa Byron Springs. Comment
  CDA24877  Hornungia procumbens Jim Jokerst 1989-3-28 3057 Contra Costa Northwest of junction Byron Hot Springs Road and Armstrong Road, northeast of Livermore. 0 Comment
  UC1619916  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
  SD241719  Hydrocotyle verticillata Barbara Ertter, Lincoln Constance 1995-6-16 14260 Contra Costa East edge Dow Marsh on west side Antioch Marina, south side San Joaquin River in Delta area. Comment
  RSA691938  Hypericum calycinum Barbara Ertter 1993-6-25 11907 Contra Costa Oakland-Berkeley Hills, Grizzly Peak Boulevard ca 1/4 miles south of Tilden miniature steam trains (1/4 miles south of junction of Lomas Cantadas), mixed scrub forest. 488 Comment
  UC1005861  Ilex aquifolium N. Floy Bracelin 1944-5-13 2690 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  JEPS77005  Iris douglasiana Robert M. Lloyd 1963-3-17 2134 Contra Costa 0.5 mi e intersection of Grizzly Peak Road and Skyline Drive (on Skyline (across from 7090 Skyline), Huckleberry trail) Comment
  JEPS368  Isoetes orcuttii J. Burtt Davy 1895-4-7 900 Contra Costa Antioch Comment
  UCD133390  Iva axillaris M. Wiesendanger 1926-6-26 1566 Contra Costa Richmond. 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
  JEPS100045  Juglans californica var. hindsii G. Smick 2003-5-13 GAS 192 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1197943  Juglans californica var. hindsii Joseph P. Tracy 1933-12-1 13130 Contra Costa along creek between Lafayette and Moraga Comment
  CAS-BOT-BC102306  Juglans hindsii Barrett Anderson 1987-4-30 3486 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  CAS-BOT-BC102308  Juglans hindsii L. R. Abrams 1916-7-29 6306 Contra Costa Walnut Creek Comment
  CAS-BOT-BC109899  Juncus Walter Knight; Irja Knight 1977-6-27 s.n. Contra Costa Sierra Nevada. Las Trampas Wilderness Park. Mahogany Trail near Little Hills Ranch. Comment
  UC691987  Juncus ambiguus Mary L. Bowerman 1933-4-22 1885 Contra Costa nw end of Shell Ridge (s of highway (Heather Farm), Mount Diablo); Mount Diablo, Shell Ridge Comment
  UC2028428  Juncus articulatus Barbara Ertter 1996-9-19 15300 Contra Costa Antioch Marina, edge of bay in Dow Marsh lands Comment
  UC1795731  Juncus bufonius var. bufonius Barbara Ertter, Kristin Ertter 1995-7-11 14472 Contra Costa Sulfur Spring on Pine Cr, Diablo Foothills Regional Park SW of Walnut Creek, marshy wet ground. 121 Comment
  CHSC116625  Juncus bufonius var. congestus Lowell Ahart; Josephine Guardino 2016-4-19 20786 Contra Costa Below the high water line of Los Vaqueros Reservoir, 1.4 miles northwest of Los Vaqueros Reservoir Mrina, 1.9 miles (air)southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  UC2028458  Juncus effusus var. pacificus Barbara Ertter with Joanne Kerbavaz and Mary Bowerman 2000-8-20 17514 Contra Costa South side Mount Diablo, Green Ranch Road at Meridian Springs Creek crossing 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
  RSA722467  Juncus gerardi Barbara Ertter, Steve Matson 2003-5-31 18175 Contra Costa Martinez Regional Shoreline, brackish marsh along Pickleweed Trail west of Arch Bridge. Comment
  CDA15268  Juncus mexicanus G. F. Hrusa, D. Crowe 1998-5-8 14399 Contra Costa Sacramento Delta; Drainage ditch parallel to Antioch-Pittsburg Hwy, at E end of Dow Chemical property. Comment
  UC1601775  Juncus occidentalis Jos. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  UC2028530  Juncus occidentalis Barbara Ertter 1998-1-17 15898 Contra Costa Lime Ridge Open Space at NW foot of Mount Diablo. 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
  UC2028537  Juncus occidentalis Barbara Ertter 1998-2-15 15912 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, open bank southeast of Indian Valley Pond. Comment
  JEPS112437  Juncus patens D. G. Kelch 2004-5-7 04 .200 Contra Costa Ca ada del Cierbo Ca ada del Cierbo 40 Comment
  SEINET6174578  Juncus patens M. L. Bowerman 1932-11-26 1674 Contra Costa Patens Spring (on north side of west road between Corral Spring and Boulevard Spring) Comment
  HSC14067  Juncus phaeocephalus Leo Koch 1940-6-5 1004 Contra Costa Near highway, 2 mi. S of San Rafael ferry dock Comment
  JEPS112433  Juncus xiphioides D. G. Kelch 2004-7-9 04 .307 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  UC691979  Juncus xiphioides Mary L. Bowerman 1933-6-21 2337 Contra Costa Donner Canyon Mount Diablo 335 Comment
  POM203838  Juncus xiphioides J. T. Howell 1934-5-14 11239 Contra Costa St. Mary s College. Comment
  POM210639  Juncus xiphioides Joseph A. Ewan 1933-10-15 8019 Contra Costa SW slope of Mt. Diablo. Comment
  UC1819019  Juncus xiphioides Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14673 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay; wetlands behind facilities at base of ''D'' road. Comment
  RSA352511  Juniperus californica Mark Morris 1929-03 s.n. Contra Costa Mt. Diablo. Comment
  UC1119870  Juniperus californica H. A. Jensen 1934-8-19 383 Contra Costa 1 mi nw North Peak; Mt. Diablo Quadrangle Comment
  UCR162417  Juniperus californica David A. Charlet, T. Charlet, Elizabeth Charlet 1991-5-28 710 Contra Costa Mt. Diablo, 'Juniper Camp' 875 Comment
  UCR168453  Juniperus californica Joseph A. Ewan 1933-10-15 8038 Contra Costa Coast Range, Mount Diablo, southwest slope 1067 Comment
  UC691244  Koeleria macrantha Mary L. Bowerman 1935-5-16 2992 Contra Costa Russelman Park Mount Diablo (just s of the n boundary of section 25 (e of gate)); , Russelman Park Comment
  UC692397  Koeleria macrantha Mary L. Bowerman 1935-5-8 2974 a Contra Costa knoll on spur s of Pioneer Camp Mount Diablo; , knoll s of Pioneer Camp 762 Comment
  UC691777  Lactuca serriola Mary L. Bowerman 1930-10-4 483 Contra Costa Maple Spring Mount Diablo Comment
  CAS-BOT-BC340537  Lactuca serriola Walter Knight; Irja Knight; J. T. Howell; E. McClintock 1978-9-5 3236 Contra Costa Browns Island Comment
  CAS-BOT-BC340539  Lactuca serriola A. D. E. Elmer 1903-7-1 4612 Contra Costa Port Costa Comment
  UC1618166  Lactuca virosa Barbara Ertter 1991-3-27 9717 Contra Costa Hillside Natural Area El Cerrito (along path n of Schmidt Lane) Comment
  UC2029078  Lactuca virosa Barbara Ertter 2000-7-16 17402 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park. Comment
  UC912318  Laennecia coulteri Herbert L. Mason 1929-9-21 5443 Contra Costa one mile e of junction of Bordon Highway and road to Antioch; Antioch, Borden Highway Comment
  JEPS103664  Lastarriaea coriacea David Gowen 2003-7-6 Contra Costa Lime Ridge Open Space, N end 182 Comment
  UC2028998  Lasthenia californica Barbara Ertter 2000-3-30 16915 Contra Costa North side of Mount Diablo, grassy S-facing hillside between Deer Flat Creek and Bald Ridge, off-trail east of Meridian Ridge Road. Comment
  JEPS10187  Lasthenia californica subsp. californica W. L. Jepson 1923-4-22 9874 Contra Costa open hillsides and slopes Mount Diablo Comment
  JEPS106453  Lasthenia conjugens Barrett Anderson with Thomas Scofield 1995-4-25 4553 Contra Costa Along Hwy 4 approx. 2.38 km E of Interstate 80--Hwy 4 interchange near Rodeo, along Rodeo Creek. Comment
  JEPS18328  Lasthenia conjugens E. L. Greene 1887-4-1 Contra Costa Antioch Comment
  UC33074  Lasthenia conjugens J. Burtt Davy 1895-4-7 968 Contra Costa Antioch; ; Antioch, Contra Costa Co. Comment
  CAS-BOT-BC324481  Lasthenia ferrisiae Alice Eastwood 1914-3-14 3761 Contra Costa Byron Springs Comment
  JEPS17885  Lasthenia fremontii Rimo Bacigalupi with G. T. Robbins 1956-3-26 5533 Contra Costa just s of S. P. R. R. crossing on rd. to Bethany 2.5 mi s of Byron; Head of Italian Slough 6 Comment
  UC90074  Lasthenia fremontii E. L. Greene 1884-4-1 Contra Costa Byron Springs Comment
  RSA523884  Lasthenia fremontii Barbara Ertter, Jim Jokerst, D. Magney 1989-4-5 8136 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  CAS-BOT-BC352926  Lasthenia glaberrima Kellogg 1870-4-20 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC352928  Lasthenia glaberrima A. D. E. Elmer 1903-5-1 4321 Contra Costa Walnut Creek Comment
  POM52865  Lasthenia glaberrima A. D. E. Elmer 1903-05 4321 Contra Costa Walnut Creek Comment
  UC90039  Lasthenia glabrata subsp. glabrata K. Brandegee 1889-5-1 Contra Costa Antioch Comment
  UC90071  Lasthenia glabrata subsp. glabrata K. Brandegee 1889-5-1 Contra Costa Antioch Comment
  UC62988  Lasthenia gracilis H. M. Hall 1901-4-5 1744 Contra Costa lower slopes Mt. Diablo Comment
  RSA721598  Lasthenia microglossa Mary L. Bowerman 1979-4-10 s.n. Contra Costa Mount Diablo. Mitchell Canyon opposite upper end of old reservoir. Comment
  SEINET3387255 Image available Lasthenia minor Lewis S. Rose 1933-3-29 33039 Contra Costa Nortonville. Comment
  CDA9498  Lasthenia platycarpha D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .223 Contra Costa Byron Airport. Comment
  UC1314947  Lasthenia platycarpha R. F. Hoover 1967-4-28 10505 Contra Costa Byron Hot Springs Comment
  CAS-BOT-BC205015  Lathyrus jepsonii var. jepsonii Walter Knight; Lawrence R. Heckard; Bert Johnson 1978-9-28 3301 Contra Costa Browns Island. South Landing Comment
  POM19744  Lathyrus vestitus subsp. vestitus C. F. Baker 1903-4-28 2944 Contra Costa Mitchells Canyon, Mt. Diablo. Comment
  CDA27151  Lathyrus vestitus var. vestitus D. G. Kelch, A. G. Murdock 2005-3-24 5 .071 Contra Costa Carquinez Strait; Chevy s Hill. Comment
  JEPS112323  Lathyrus vestitus var. vestitus Dean G. Kelch and Andrew G. Murdock 2005-3-11 05 .037 Contra Costa Martinez - Franklin Hills; County: Contra Costa; Carq. Shoreline EBRP. Contra Costa County CA. West of Martinez Highschool. Comment
  UC964777  Lathyrus vestitus var. vestitus Herbert L. Mason 1931-4-5 5829 Contra Costa road between Marsh Creek and Livermore Comment
  UC692314  Lathyrus vestitus var. vestitus Mary L. Bowerman 1932-4-16 1362 Contra Costa Eagle Point ridge, n of 1682 point Mount Diablo Comment
  CDA15250  Lavatera cretica G. F. Hrusa, D. Crowe 1998-5-8 14381 Contra Costa Sacramento Delta; Adjacent to Dow Ecological Reserve on Dow Chemical property at Pittsburg. Comment
  CHSC23345  Layia chrysanthemoides Willis Ball 1975-3-22 497 Contra Costa In area #5. Field ca. 200 yds due e of main boat ramp. 36 Comment
Read comments
May 24 2013
  UC650363  Layia chrysanthemoides Ira L. Wiggins 1930-4-17 4572 Contra Costa s Byron Comment
  JEPS13505  Layia gaillardioides Robert F. Hoover 1936-4-16 973 Contra Costa e slope of Bald Peak e of Tilden Regional Park; San Pablo Ridge Comment
  UC30668  Layia gaillardioides H. P. Chandler 1900-3-24 Contra Costa Briones Hills; Mount Diablo Comment
  CAS-BOT-BC321080  Layia glandulosa C. F. Baker 1903-4-27 2939 Contra Costa Antioch Comment
  CAS-BOT-BC321085  Layia glandulosa Brandegee no date on sheet s.n. Contra Costa Antioch Comment
  UC34544  Layia glandulosa E. R. Drew 1889-4-18 Contra Costa Comment
  UC468839  Layia glandulosa W. C. Blasdale 1893-5-13 Contra Costa Comment
  UC691547  Layia hieracioides Mary L. Bowerman 1931-4-19 744 Contra Costa Tiny flat below Deer Flat Comment
  UC89175  Layia hieracioides Brandegee May 1883 Contra Costa Judsonville Comment
  CAS-BOT-BC327247  Layia hieracioides David D. Keck 1941-6-5 5307 Contra Costa Berkeley Hills, Fish Creek Rd., 0.25 mi W of E. portal of Broadway Tunnel 335 Comment
  CAS-BOT-BC327249  Layia hieracioides David D. Keck 1941-6-5 5307 Contra Costa Berkeley Hills, Fish Creek Rd., 0.25 mi W of E. portal of Broadway Tunnel 335 Comment
  CAS-BOT-BC327698  Layia pentachaeta Brandegee no date on sheet s.n. Contra Costa Antioch Comment
  CAS-BOT-BC370665  Layia platyglossa Alice Eastwood 1915-5-30 s.n. Contra Costa Mt. Diablo Comment
  UC1069769  Layia platyglossa C. M. Belshaw 1936-5-8 2064 Contra Costa se slope Mt. Diablo; Mt. Diablo Quad. 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
  UC89326  Layia platyglossa C. F. Baker 1903-5-28 2874 Contra Costa Antioch Comment
  UC89330  Layia platyglossa Brandegee Apr 1889 Contra Costa Antioch Comment
  POM202803  Layia platyglossa subsp. platyglossa L. S. Rose 1933-4-17 33093 Contra Costa Antioch Comment
  JEPS75303  Lemna gibba L. R. Heckard 1975-11-2 4211 Contra Costa nw side Brooks Island (Richmond); , Brooks Island Comment
  UC2029072  Lemna gibba Barbara Ertter 2000-7-16 17412 Contra Costa Turtle Rock Ponds on east side of Pine Creek, west side of Mount Diablo. Comment
  UC692083  Lemna minuscula Mary L. Bowerman 1932-8-27 1518 Contra Costa s of Turtle Rock (Mount Diablo); Mount Diablo Comment
  UC2027751  Lemna minuta Barbara Ertter 1996-11-24 15412 Contra Costa Southwest side of Mount Diablo, streamlet east of Macedo Ranch trailhead. Comment
  JEPS111001  Lepechinia calycina W. L. Jepson 1921-11-19 9522 Contra Costa Chamise ridge, Mt. Diablo Comment
  CDA43402  Lepidium acutidens Michael Pitcairn & Dean Kelch 2015-3-6 s.n. Contra Costa South end of the Byron Airport. Comment
  CAS-BOT-BC88706  Lepidium acutidens Lewis S. Rose 1933-3-29 33041 Contra Costa Nortonville. Comment
  UCD146720  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
  POM204444  Lepidium dictyotum var. acutidens J. T. Howell 1933-3-29 10894 Contra Costa Nortonville Comment
  RSA19373  Lepidium dictyotum var. acutidens L. S. Rose 1937-3-26 37012 Contra Costa Byron. 8 Comment
  UCD115342  Lepidium didymum Collector unknown Date unknown s.n. Contra Costa Jersey Island. Comment
  CAS-BOT-BC89715  Lepidium latifolium Walter Knight; Joanne Dean 1978-8-14 3170 Contra Costa Brown Island. Comment
  UC1535348  Lepidium latifolium Ernest L. Gordon 1987-6-1 Contra Costa Martinez Regional Shoreline, across from the railroad depot, in park Martinez Regional Shoreline Comment
  JEPS17889  Lepidium latipes Rimo Bacigalupi with G. T. Robbins 1956-3-26 5527 Contra Costa Deer Valley, along Deer Valley Road Deer Valley 76 Comment
  JEPS53653  Lepidium latipes W. L. Jepson 1899-4-19 13370 Contra Costa Moraga Valley Comment
  JEPS116958  Lepidium latipes var. latipes David Gowen 2008-4-6 841 Contra Costa East of Marsh Creek Road on north side of Camino Diablo Road, near stock pond. Comment
  CAS-BOT-BC89889  Lepidium nitidum Alice Eastwood 1914-3-14 3766 a Contra Costa Byron Springs. 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
  UC480595  Lepidium nitidum Carl Meyer 1928-2-22 292 Contra Costa Mt. Diablo Comment
  RSA537663  Lepidium nitidum var. oreganum Barbara Ertter, Jim Jokerst, D. Magney 1989-4-5 8127 Contra Costa SE Contra Costa: alkali sink W and adjacent to Clifton Court Forebay, ca 15 air miles SW of Stockton 0 Comment
  UC10608  Lepidium oxycarpum J. Burtt Davy 1898-4-8 4263 Contra Costa Danville Comment
  CDA23067  Lepidium strictum D. G. Kelch, D. A. Weinstein 2008-5-5 8 .092 Contra Costa Carquinez Strait; Richmond. W Chevy s Hill. N parking lot of Hilltop Mall. Comment
  JEPS99536  Lepidium strictum Mary L. Bowerman 1995-5-28 Contra Costa Mount Diablo, fire road from Macedo Ranch to Wall Pt. Ridge. Comment
  CAS-BOT-BC273931  Leptochloa fusca subsp. fascicularis John Thomas Howell; Gordon H. True 1972-6-29 48944 Contra Costa Along Byron Hot Springs Road where water has stood, southeast of Byron Comment
  UC2028122  Leptosiphon androsaceus Barbara Ertter with Richard K. Brummitt 1998-5-6 16086 Contra Costa Lower Donner Canyon Road on north base of Mount Diablo, ca 1/2 miles south of Donner cabin site. Comment
  UC2028986  Leptosiphon ciliatus Barbara Ertter 2000-5-14 17009 Contra Costa Donner Canyon on north side of Mount Diablo, SW end of Falls Trail between Middle Trail and Donner Creek crossing. Comment
  CAS-BOT-BC324111  Lessingia glandulifera var. glandulifera T. S. Brandegee 1883-1-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC324116  Lessingia glandulifera var. glandulifera Peter Rubtzoff 1954-9-14 1751 Contra Costa Along lower San Joaquin River, east of Antioch Comment
  CAS-BOT-BC324118  Lessingia glandulifera var. glandulifera Alice Eastwood 1921-4-18 10270 Contra Costa Antioch Comment
  JEPS100184  Lessingia glandulifera var. glandulifera David Gowen 2003-7-6 s. n. Contra Costa Lime Ridge Open Space; Ridge trail in the N section of the park and S of the water tank Comment
  UC88011  Lessingia nemaclada K. Brandegee 1883 Contra Costa Antioch Comment
  JEPS79353  Lessingia pectinata var. tenuipes Edward Lee with Annetta Carter 1935-8-17 1621 Contra Costa Antioch Comment
  UC1094039  Lessingia pectinata var. tenuipes Lewis S. Rose 1955-10-17 55185 Contra Costa Antioch Comment
  RSA59614  Lewisia rediviva Verne Grant, Alva Grant 1950-5-13 8895 Contra Costa Saddle between N & Meridian peaks, Mt. Diablo. Comment
  JEPS78895  Leymus X multiflorus Edward Lee 1935-8-13 1616 Contra Costa Vaca Canyon; roadside Comment
  CDA39657  Leymus X multiflorus Slate 2013-5-22 PDR# 1641699 Contra Costa Concord; Walnut Creek channel upstream of Willow Pass Rd. 0 Comment
  POM365328  Leymus condensatus A. A. Beetle 1941-6-24 1751 Contra Costa Pt. Richmond on San Francisco Bay Comment
  JEPS129822  Leymus triticoides Dean G. Kelch 2006-6-23 06 .321 Contra Costa West Valona. West of the Zampa Bridge above San Pablo Ave. Comment
  JEPS99987  Leymus triticoides S. O'Neil 2003-7-27 SEO 44 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA108330  Leymus triticoides Frank W. Gould 1941-5-16 1298 Contra Costa In roadside ditch, 1/2 mile east of Lafayette on C.S. Highway 24. Comment
Read comments
Nov 1 2011
  UCD87590  Leymus triticoides P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CDA32488  Leymus triticoides Ball ? 1944-6-9 Contra Costa El Cerrito 0 Comment
  UC2029157  Leymus triticoides Barbara Ertter 2000-7-29 17448 a Contra Costa Lower Donner Canyon just above Donner Cabin site, on north side of Mount Diablo. Comment
  UC1055944  Lilaea scilloides Francia Chisaki, Peter Kamb, and S. Galen Smith 1951-4-14 1979 Contra Costa 7 mi n Walnut Creek (e of Highway 21, 0.2 mi s of intersection with Highway 4) Comment
  UC971818  Limnanthes douglasii subsp. rosea Charles T. Mason Jr. 1948-3-27 1134 Contra Costa 0.1 mi s Byron Hot Springs road (along Byron-Bethany road) Comment
  UC971837  Limnanthes douglasii subsp. rosea Annetta Carter 1947-3-25 1782 Contra Costa vernal pool 3.3 mi s Byron 7 Comment
  POM311124  Limnanthes douglasii subsp. rosea Charles T. Mason Jr. 1949-3-17 1239 Contra Costa In a field along the Byron-Bethany road, 3.3 miles south of Byron. Comment
  SD211624  Limnanthes douglasii var. rosea Barbara Ertter, Jim Jokerst et al 1989-4-5 8115 Contra Costa Alkalai sink West and adjacent to Clifton Court Forebay, circa 15 airmiles Southwest of Stockton Comment
  UCD170113  Limnobium laevigatum R. Breckenridge; K. Filippini 2010-10-1 s.n. Contra Costa Sacramento/San Joaquin Delta. Bradford Island. Comment
  UC1563678  Limonium californicum Barbara Ertter with Elizabeth Neese 1988-10-15 7981 Contra Costa El Cerrito; marsh w of I-580, w side along Rydin Road n of Central Ave. Comment
  UCD35164  Limonium californicum Beecher Crampton 1950-8-5 632 Contra Costa San Pablo Canal, NW of Richmond. Comment
  CDA39056  Limonium sinuatum D. G. Kelch 2011-6-12 11 .585-B Contra Costa Carquinez Strait; Above Point Costa. 0 Comment
  UCD33426  Linanthus Beecher Crampton 1968-3-27 8232 Contra Costa SE corner of County, ca. 3.5 miles south of Byron. Comment
  UC400968  Linanthus ambiguus J. G. Lemmon Contra Costa Mt. Diablo Comment
  UC23376  Linanthus androsaceus Brewer 1862-5-22 1139 Contra Costa ne of Mt. Diablo (hills s of Coal Mines) Comment
  UC30176  Linanthus androsaceus W. H. Brewer 1862-5-22 1139 Contra Costa foothills e Mount Diablo Comment
  UC691637  Linanthus androsaceus Mary L. Bowerman 1931-4-18 716 Contra Costa Sycamore Canyon Mount Diablo 335 Comment
  UC1607629  Linanthus bicolor Barbara Ertter, Lynne Hosley 1993-4-17 11509 Contra Costa ca 10 air mi n Livermore (hills in lee of Mt. Diablo, e side of open meadow along Blue Oak trail); Morgan Territory 609 Comment
  SEINET12279041  Linanthus bicolor H. M. Hall 1901-1 1723 Contra Costa Region of San Francisco Bay, Mt. Diablo 411 Comment
  UC1713208  Linanthus bolanderi Mary L. Bowerman 1935-4-26 2905 Contra Costa w of Indian Ceremonial Spring; Mount Diablo 1005 Comment
  UC1618093  Linanthus ciliatus Donald G. Nelson 1937-4-29 518 Contra Costa Road from Pinole south towards Alhambra Road Pinole Comment
  UC932049  Linanthus ciliatus Verne Grant and Alva Grant 1948-5-15 8503 Contra Costa on Sommerville to Antioch road; Sommerville Range Comment
  JEPS112263  Lithophragma affine D. G. Kelch 2003-4-3 03 .358 Contra Costa Cummings Skyway 134 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
  JEPS99949  Lithophragma affine G. Smick 2003-4-3 GAS 67 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1618055  Lithophragma affine Donald G. Nelson 1937-3-30 467 Contra Costa along Marsh Creek Road between Claytonville and Byron; Marsh Creek Road Comment
  UC518019  Lithophragma affine Lewis S. Rose 1933-4-17 33099 Contra Costa Walnut Creek Comment
  HSC20215  Lithophragma affine Greg Bos 1963-3-9 36 Contra Costa Albany Hill 9 Comment
  SEINET3817186 Image available Lithophragma affine Lewis S. Rose 1933-4-17 33099 Contra Costa Walnut Creek. Comment
  CAS-BOT-BC435625  Lithophragma heterophyllum Mary L. Bowerman 1931-3-21 585 Contra Costa Sycamore Canyon Comment
  UC1088544  Lithophragma heterophyllum John H. Weiler 1959-1 5944 Contra Costa along Bear Creek Road Comment
  UC692447  Lithophragma heterophyllum Mary L. Bowerman 1931-3-21 585 Contra Costa Sycamore Canyon 335 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
  UC2028308  Lithophragma heterophyllum Barbara Ertter, Susan D'Alcamo 1998-6-12 16195 Contra Costa East end Bald Ridge Trail W of Prospectors Gap on north side of Mount Diablo summit. Comment
  UC1005823  Lobelia tupa N. Floy Bracelin 1944-10-15 2815 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1819053  Logfia filaginoides Barbara Ertter, Chris Thayer 1995-4-25 13994 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Black Hawk Ridge Rd. on north side Black Hawk Ridge. 548 Comment
  UC2042870  Logfia gallica Barbara Ertter with Travis Columbus 1990-6-10 9101 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill, trails heading down ridge on N of Briones Peak. Comment
  UCD66671  Lolium temulentum K. Brandegee 1916-5-9 Contra Costa Byron Springs. Comment
  JEPS17143  Lomatium dasycarpum subsp. dasycarpum W. L. Jepson 1918-6-3 7579 Contra Costa Donner Canyon Mt. Diablo Comment
  UC21279  Lomatium dasycarpum subsp. dasycarpum H. M. Hall 1901-4-5 1747 Contra Costa Mt. Diablo 640 Comment
  UC692350  Lomatium nudicaule Mary L. Bowerman 1933-6-7 2251 Contra Costa Mt. Diablo, North Peak Saddle Comment
  UCD102387  Lomatium nudicaule Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. North Peak Road to North Peak. 920 Comment
  UC1123054  Lomatium utriculatum C. M. Belshaw 1936-5-12 2105 Contra Costa 1 mi S of Mt. Diablo summit (Tassajero[sic] Road) 335 Comment
  UC2032839  Lomatium utriculatum Doran, Andrew Scott 2012-3-20 710 Contra Costa Highest point on Brooks Island, southern part of island overlooking quarry. 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
  CDA42380  Lonicera hispidula D. G. Kelch 2012-5-27 12 .071 Contra Costa Carquinez Strait Region; Pinole Valley Park. Comment
  CDA42192  Lonicera hispidula var. vacillans D. G. Kelch 2004-5-2 4 .167 Contra Costa Carquinez Strait Region; Edwards Canyon, Crockett. Comment
  CAS-BOT-BC240662  Lonicera interrupta H. E. McMinn 1922-6-2 91 Contra Costa N.E. slope of Mt. Diablo Comment
  UC650409  Lonicera involucrata var. ledebourii Ira L. Wiggins 1930-4-18 4594 Contra Costa levee on e end Jersey Island Comment
  UC1051199  Lonicera japonica N. Floy Bracelin 1944-6-11 2723 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1005863  Lonicera korolkowii N. Floy Bracelin 1944-5-7 2688 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UCD137367  Lonicera subspicata M. Wiesendanger 1925-5-1 1480 Contra Costa San Miguel. Comment
  JEPS12855  Lonicera subspicata var. denudata Mary L. Bowerman 1932-10-16 1634 Contra Costa ridge e Median Ridge; Mount Diablo, Donner Canyon basin 487 Comment
  UC691757  Lonicera subspicata var. denudata Mary L. Bowerman 1932-10-9 1630 Contra Costa e side North Peak (se of the ridge leading directly to North Peak from Gabriel-Hinks'); Mount Diablo Comment
  CAS-BOT-BC200900  Lotus R. E. Frenkel 1964-2-5 356 Contra Costa On California Hwy. 21, Market Plaza Center, Alamo 79 Comment
  JEPS91400  Lotus corniculatus Dean W. Taylor 1990-4-23 10636 Contra Costa ca. 2 miles due W of Byron Hot Springs 30 Comment
  JEPS99996  Lotus corniculatus A. Langston 2003-7-2 AL 58 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1594184  Lotus corniculatus Jerry Powell 1992-6-17 1650 Contra Costa Richmond Field Station Comment
  UC1819023  Lotus corniculatus Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14637 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
  UC775175  Lotus denticulatus Herbert L. Mason 1945-5-31 Contra Costa nw of St. Mary's College; Cashion Canyon Comment
  RSA138287  Lotus heermannii Volney Rattan 1879 Contra Costa Antioch Comment
  UC15689  Lotus humistratus State Survey 1800-1 1073 Contra Costa Mt. Diablo Range Comment
  UC692525  Lotus micranthus Mary L. Bowerman 1933-4-22 1898 Contra Costa w of Cave Point; Mount Diablo, Inner Black Hills Comment
  UC692526  Lotus micranthus Mary L. Bowerman 1931-3-29 616 Contra Costa East Cave Point Ridge Mount Diablo Comment
  UC692269  Lotus purshianus var. purshianus Mary L. Bowerman 1938-6-14 3676 Contra Costa 1 mi from North Gate (North Road); Mount Diablo 121 Comment
  RSA181412  Lotus strigosus James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  JEPS100069  Lotus wrangelianus G. Smick GAS 74 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC726775  Lupinus A. A. Heller 1938-4-9 15019 Contra Costa near the w end Antioch Bridge; near the w end of the Antioch Bridge Comment
  UC149913  Lupinus affinis Katharine Brandegee 1911-7-6 Contra Costa along the RR near Point Isabel; along the RR near Point Isabel Comment
  UC127542  Lupinus albifrons H. P. Chandler 1900-3-24 586 Contra Costa Briones Hills Comment
  UC1713207  Lupinus albifrons C. F. Baker 1903-4-25 2823 Contra Costa Antioch Comment
  UC764598  Lupinus albifrons Robert F. Hoover 1935-3-10 300 Contra Costa Antioch Comment
  UC1129295  Lupinus albifrons var. albifrons C. M. Belshaw 1936-5-8 2059 Contra Costa 2.25 mi e Clayton; Mt. Diablo quad 381 Comment
  UC127018  Lupinus albifrons var. collinus J. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  HSC101954  Lupinus albifrons var. douglasii Nikolaus Gillen, Michelle Bihler 2014-3-20 5 Contra Costa Mount Diablo State Park. Back Creek Trail. 340 Comment
  JEPS25126  Lupinus arboreus G. Thomas Robbins 1959-4-18 3995 Contra Costa near and n Pt. Richmond (above Western Drive, western slopes of the Potrero Hills, Richmond); Richmond, near and n of Pt. Richmond 7 Comment
  CDA27418  Lupinus bicolor D. G. Kelch, A. G. Murdock 2005-4-24 5 .166 Contra Costa Carquinez Strait Region; Franklin Canyon. Collier Hill. West Carbon. 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
  UC15930  Lupinus bicolor W. H. Brewer 1862-5-23 1149 Contra Costa se Monte Diablo; se of Monte Diablo Comment
  UC400153  Lupinus bicolor Ynes Mexia 1929-4-21 2378 a Contra Costa Moraga Valley Comment
  UC2028255  Lupinus bicolor Barbara Ertter with Gary Schoolcraft 1996-4-7 14573 Contra Costa Point San Pablo in west Richmond, crest of road to yacht harbor, coastal grassland along ridge, scraped roadbed to tower Comment
  UCD107314  Lupinus bicolor Helen K. Sharsmith 1963-4-7 5292 Contra Costa near Oakley south of Antioch. 15 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
  POM10667  Lupinus bicolor subsp. tridentatus H. P. Chandler 975 Contra Costa Between Pine Canyon and the Summit. Comment
  CAS-BOT-BC187864  Lupinus chamissonis D. E. Breedlove 1963-3-29 4281 Contra Costa Sacramento River at Antioch Comment
  SEINET10485223  Lupinus densiflorus Frenkel 1964-4-18 FRENKEL 424 Contra Costa 2.1 mi. E of danville on tassajara rd. 130 Comment
  UC692522  Lupinus formosus Mary L. Bowerman 1936-9-9 3538 Contra Costa Sycamore Canyon Mount Diablo (small flat valley e of Forces' house); , Sycamore Canyon 274 Comment
  UC1613951  Lupinus formosus var. formosus Charles M. Belshaw 1935-6-24 1033 Contra Costa Sobrante Hills 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
  UC2029122  Lupinus formosus var. robustus Barbara Ertter with David Gowen 2013-4-19 21318 Contra Costa Southwestern Mount Diablo State Park southeast of Walnut Creek, upper end of Little Yosemite Trail at junction with Briones to Mount Diablo Regional Trail. Comment
  OBI59407  Lupinus microcarpus var. densiflorus Barbara Ertter, Elizabeth Neese 1988-4-24 7450 Contra Costa Black Diamond Mines Regional Preserve SW of Antioch, N of E-W part of Black Diamond Trl Comment
  UC1562851  Lupinus microcarpus var. densiflorus Barbara Ertter with Elizabeth Neese 1988-4-24 7450 Contra Costa n of e-w part of Black Diamond Trail sw Antioch (Black Diamond Mines Regional Preserve); Black Diamond Mines Regional Preserve Comment
  OBI60545  Lupinus microcarpus var. densiflorus Donald G. Nelson 1937-4-24 516 Contra Costa On Marsh Crk Rd, in rolling hill country N of Byron Comment
  UC15958  Lupinus microcarpus var. microcarpus A. Eastwood 1894-5-3 Contra Costa Antioch Comment
  UC15961  Lupinus microcarpus var. microcarpus J. Burtt Davy April 1895 Contra Costa Antioch Comment
  UC201009  Lupinus microcarpus var. microcarpus Katharine Brandegee Aug 1918 Contra Costa Richmond Annex; El Dorado St. and Sta. Clara Ave. Comment
  UC201028  Lupinus microcarpus var. microcarpus Katharine Brandegee June 1918 Contra Costa Richmond Annex 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
  UC2031457  Lupinus pachylobus Barbara Ertter with David Gowen 2014-4-9 21709 Contra Costa Ridge running SE from Devil's Elbow on south side of Mount Diablo summit Comment
  UC2028168  Lupinus pachylobus Barbara Ertter 1998-5-3 16075 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, near Wall Point. Comment
  JEPS112377  Lupinus succulentus Dean G. Kelch and Andrew G. Murdock 2003-6-2 87 Contra Costa Crockett - Eckley; County: Contra Costa; East of pier at base of cliff. Comment
  UC614849  Lupinus succulentus Beryl O. Schreiber 1932-3-27 153 Contra Costa near Midway; near Midway Comment
  SEINET8057995  Lupinus succulentus H. E. Hodge 1956-4-7 13 Contra Costa Tice Canyon Road in Walnut Creek 61 Comment
  UC691937  Luzula comosa Mary L. Bowerman 1933-5-8 2021 Contra Costa Mount Diablo , Rock City Ridge, = Fossil Ridge (half way down to canyon bottom Rock City Ridge, = Fossil Ridge) Comment
  UC2028039  Luzula comosa Barbara Ertter 1998-3-7 15930 Contra Costa Dan Cook Canyon on southwest side of Mount Diablo. Comment
  OBI21194  Luzula macrantha G. Thomas Robbins 1959-4-18 3987 Contra Costa Partial shade of Baccharis pilularis var. consanguinea at edge of Juncus effusus meadow overlooking San Pablo Bay, about 1/2 mile east of Pt. San Pablo, Richmond 8 Comment
  UC1178022  Lythrum californicum Herbert L. Mason 1955-7-14 14636 Contra Costa 1/2 mi e of Antioch Bridge Comment
  POM300654  Lythrum californicum Mary L. Bowerman 1932-12-5 1681 Contra Costa Willow Spring (near W road, N of Blvd Spring. Comment
  CDA5134  Lythrum hyssopifolia D. G. Kelch, A. G. Murdock 2005-5-5 5 .213 Contra Costa Carquinez Strait Region; Point Pinole - Giant Marsh. Giant Salt Marsh. Comment
  JEPS111529  Lythrum hyssopifolia D. G. Kelch 2005-5-5 05 .213 Contra Costa Point Pinole - Giant Marsh 3 Comment
  JEPS112518  Lythrum hyssopifolia D. G. Kelch 2004-6-6 04 .225 Contra Costa Martinez - Train Station Downtown Martinez. Alhambra Creek near bay and railroad Station. 2 Comment
  UCD150881  Lythrum hyssopifolia James A. Neilson Jr. 1972-11-2 3617 Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 Comment
  UC2028361  Lythrum hyssopifolia Barbara Ertter with Tony Morosco 1998-7-11 16364 Contra Costa North base of Mount Diablo, margin of small pond on north side of Bruce Lee Road east of Mitchell Canyon staging area Comment
  UC1619945  Lythrum tribracteatum Barbara Ertter, Brad Olson 1991-9-28 10834 Contra Costa San Pablo Reservoir between Orinda and El Sobrante; dried mud flats at S end of reservoir 91 Comment
  CAS-BOT-BC342681  Madia elegans Mary L. Bowerman 1936-9-10 3542 Contra Costa Mount Diablo. Donner Canyon 335 Comment
  UCD102388  Madia elegans Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. North Peak Road to North Peak. 1000 Comment
  UC89384  Madia exigua Katharine Brandegee June 1892 Contra Costa Port Costa Comment
  CAS-BOT-BC344325  Madia exigua Joseph Andorfer Ewan 1936-5-24 9693 Contra Costa West slope Bald Peak Comment
  JEPS99484  Madia exigua Mary Bowerman 1978-5-14 Contra Costa Mount Diablo. The old wagon trail to mines on E. side of Eagle Peak. Comment
  CDA28835  Madia gracilis D. G. Kelch, Jessica Kolman 2009-5-29 9 .314 Contra Costa Carquinez Strait; Pinole Valley Park, near ridgetop. Comment
  UC691765  Madia gracilis Mary L. Bowerman 1931-4-25 754 Contra Costa two mi by road from west entrance = North Gate; Mount Diablo Comment
  UC691766  Madia gracilis Mary L. Bowerman 1935-5-22 3052 Contra Costa saddle w Twin Peaks (Eagle Point ridge); Mount Diablo Comment
  UC697158  Madia gracilis Mary L. Bowerman 1933-6-3 2241 Contra Costa Ransom Point Ridge Mount Diablo Comment
  UC697160  Madia gracilis Mary L. Bowerman 1933-5-8 2018 Contra Costa near crest Fossil Ridge (on n side by side road); Mount Diablo Comment
  CAS-BOT-BC324486  Madia radiata R. F. Hoover 1938-3-25 2898 Contra Costa Lone Tree Valley Comment
  CAS-BOT-BC324488  Madia radiata K. Brandegee 1908-4-9 50 Contra Costa Near Antioch Comment
  CAS-BOT-BC8141  Madia radiata Albert Kellogg s.n. Contra Costa Antioch Comment
  UC830900  Madia radiata A. A. Heller 1938-4-9 15015 Contra Costa 3 mi sw Antioch Comment
Read comments
Aug 21 2017
  SEINET11601587 Image available Madia radiata K. Brandegee 1908-4-9 50 Contra Costa Near Antioch Comment
  CDA23595  Madia sativa D. G. Kelch 2007-9-8 7 .568 Contra Costa Carquinez Strait; Pinole Valley Park. Comment
  UC33195  Madia sativa Jos. Burtt Davy 1895-1 Contra Costa Moraga Pass Comment
  POM267969  Madia sativa D. D. Keck 1941-6-5 5310 Contra Costa Berkeley Hills, Fish Creek Road 1/4 mile W of E portal of Broadway Tunnel. 335 Comment
  UC2027972  Madia sativa Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15664 Contra Costa Point Richmond, crest of road. Comment
  CAS-BOT-BC206330  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
  UC692620  Malacothamnus fremontii Mary L. Bowerman 1933-5-21 2158 Contra Costa on ridge between main forks (head of Grape Spring gully) Mount Diablo, Sulplhur Spring Canyon Comment
  RSA721597  Malacothrix clevelandii Mary L. Bowerman 1978-5-14 s.n. Contra Costa Mount Diablo; old wagon trail to mine on east face of Eagle Peak Comment
  POM53214  Malacothrix floccifera C. F. Baker 1903-4-28 2948 Contra Costa Marsh Creek, Mt. Diablo. Comment
  JEPS111542  Malva pseudolavatera D. G. Kelch 2003-3-28 03 .83 Contra Costa Rodeo - Lone Tree Point 2 Comment
  CDA35747  Malvella leprosa D. G. Kelch, Andrew G. Murdock 2004-7-9 4 .306 Contra Costa Carquinez Strait; Alhambra Creek, Martinez, near Muir gravesite, Arroyo del Hambre. Comment
  CDA9368  Malvella leprosa D. G. Kelch 2006-7-14 6 .332 Contra Costa Between Rte 4 and Carbon Rd. E Rodeo. Comment
  UC2028044  Marah fabacea Barbara Ertter 1998-3-1 15924 Contra Costa Diablo Foothills Regional Park, Ridge Trail on ridge east of Old Borges Ranch. Comment
  UC691462  Marrubium vulgare Mary L. Bowerman 1930-6-26 376 Contra Costa junction of Riggs Canyon Rd and Livermore Rd Mount Diablo Comment
  CDA9493  Marsilea vestita D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .217 Contra Costa Byron Airport. Comment
  UC1586020  Marsilea vestita subsp. vestita Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8131 Contra Costa ca. 15 air mi sw Stockton (w and adjacent to Clifton Court Forebay); se Contra Costa Co. Comment
  UCD164887  Matricaria discoidea Henry House 1995-4-30 1995- 8 Contra Costa About 1 km west of Walnut Blvd., ca. 0.5 km south of Marsh Creek Rd. 60 Comment
  JEPS100115  Medicago arabica G. Smick 2003-5-8 GAS 180 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC16087  Medicago polymorpha J. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  POM11730  Medicago polymorpha Katherine Brandegee s.n. Contra Costa Byron Hot Springs. Comment
  CDA4230  Medicago sativa D. G. Kelch, A. G. Murdock 2004-5-21 4 .219 Contra Costa Carquinez Strait Region; Cummings Skyway. Exit from I-80 to Cummings Skyway. Comment
  POM300624  Melica californica Mary L. Bowerman 1935-5-25 3070 Contra Costa Meridian Peak south of the summit (east of the hairpin turn on road). Mount Diablo. 1067 Comment
  RSA762310  Melica californica William J. Ferlatte, L. M. Moe 1970-4-27 1260 Contra Costa San Francisco Bay, Red Rock Island. Comment
  SEINET10893688  Melica californica M. Bowerman 1991-5-21 Bowerman s.n. Contra Costa Mount Diablo. Jim White Trail [Deer Flat Rd]. South side of Juniper-Moses Rock Trail near Deer Flat junction. Large silvery patches scattered over S-facing hillside. Comment
  CAS-BOT-BC281434  Melica imperfecta Virginia E. Long 1933-6-14 221 a Contra Costa Mt Diablo. On slope SE-E along first W fork from Curry Creek trail 335 Comment
  UC1153843  Melica imperfecta Beecher Crampton 1956-5-14 3405 Contra Costa s boundary Mt. Diablo State Park Comment
  UC692463  Melica imperfecta Mary L. Bowerman 1935-5-3 2956 Contra Costa hillside below Jungle of the Garden Gods (Fossil Ridge (Rock City Ridge)); Mount Diablo, Fossil Ridge (Rock City Ridge) 457 Comment
  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
  SEINET10926310  Melica imperfecta var. flexuosa Virginia E. Long 1933-6-14 Long 221 a Contra Costa Mt. Diablo. On slope S.E.-E. along first west fork from Curry Creek trail. 335 Comment
  CAS-BOT-BC262506  Melica torreyana John Thomas Howell 1933-5-14 11257 Contra Costa Hills east of St. Mary's College Comment
  SEINET1910265  Melica torreyana Barbara Ertter, John Little 1989-1 8111 Contra Costa Hillside Park in El Cerrito, +/- undisturbed vegetation on steep W facing slope Comment
  UC1948967  Melica torreyana William J. Ferlatte, L. Maynard Moe 1970-4-27 1249 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC1948968  Melica torreyana William J. Ferlatte, L. Maynard Moe 1970-4-27 1228 Contra Costa San Francisco Bay: Red Rock Island Comment
  CAS-BOT-BC262508  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: Woodland 1066 Comment
  UC1950128  Melica torreyana Barbara Ertter with John Little 1989-4-2 8111 Contra Costa Hillside Park in El Cerrito, on steep W-facing slope Comment
  UCD161481  Melica torreyana A. A. Beettle 1941-3-28 1723 Contra Costa near Orinda. Comment
  CHSC116633  Melilotus indicus Lowell Ahart; Josephine Guardino 2016-4-19 20801 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Below the high water line of Los Vaqueros Reservoir, 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  UC407395  Melilotus indicus Ira L. Wiggins 1930-4-18 4599 Contra Costa Jersey Island Comment
  CDA1109  Melissa officinalis D. G. Kelch 2005-7-14 5 .462 Contra Costa Carquinez Strait Region; Arroyo del Hambre; Franklin Creek near Glen Frazier. Comment
  UCD150883  Mentha X piperita James A. Neilson Jr. 1972-11-9 s.n. Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 Comment
  RSA756364  Mentzelia affinis Barbara Ertter 1991-5-5 9773 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, south side of Rose Hill above Nortonville Pass. 366 Comment
  JEPS42778  Mentzelia micrantha W. L. Jepson 1919-6-8 8331 Contra Costa Mt. Diablo Comment
  RSA296862  Mentzelia micrantha W. L. Jepson 1919-6-8 83314 Contra Costa Mt. Diablo Comment
  UC697192  Mentzelia micrantha Mary L. Bowerman 1933-5-2 Contra Costa Below Pioneer Camp (and slightly east); Mount Diablo 762 Comment
  JEPS111949  Mercurialis ambigua D. G. Kelch 2004-4-3 04 .44 Contra Costa Crockett - Edwards Canyon Rare weed at nursery at Edwards Creek Staging Area (EBRPD) near barn. 24 Comment
Read comments
Jun 14 2011
  JEPS100177  Micropus californicus G. Smick 2003-4-29 GAS 149 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CDA8378  Micropus californicus var. californicus D. G. Kelch, A. G. Murdock 2004-4-25 4 .125 Contra Costa Carquinez Strait Region; Martinez - West: Ozol Rock and Scenic Drive. Hill southwest of large cottonwood. West of Martinez at gated end of Scenic Drive. Comment
  JEPS111703  Micropus californicus var. californicus D. G. Kelch 2004-4-30 04 .155 Contra Costa Mt. Wanda - Martinez 90 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
  CAS-BOT-BC348890  Microseris douglasii subsp. douglasii Alice Eastwood 1914-3-14 3800 Contra Costa Byron Springs Comment
  JEPS36211  Microseris douglasii subsp. douglasii W. L. Jepson 1923-4-22 9881 Contra Costa Mt. Diablo Comment
  UC218905  Microseris douglasii subsp. douglasii Katharine Brandegee 1907-5-3 Contra Costa near Antioch 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-BC348895  Microseris douglasii subsp. douglasii K. L. Chambers 1953-4-25 449 Contra Costa Balfour Road ca. 4 mi. w. of Brentwood and 1.8 mi. e. of its junction with Antioch-Briones Valley Rd. Comment
  UC1818979  Microseris elegans Barbara Ertter, Dale Sanders, Dan Norris 1994-3-26 12336 Contra Costa Peyton Hill east of I-680 east of Martinez, south of Waterfront Road, west foot of hill near edge of marsh, openings in grassland. Comment
  CAS-BOT-BC322765  Microseris sylvatica M. K. Curran 1884-5-1 s.n. Contra Costa Antioch Comment
  SEINET11602013 Image available Microseris sylvatica K. Brandegee 1907-5-5 s.n. Contra Costa Between Antioch & Marsh Creek Comment
  UC2028127  Microseris sylvatica Barbara Ertter with Richard K. Brummitt 1998-5-6 16081 Contra Costa Base of Mitchell Rock Trail on north base of Mount Diablo. Comment
  JEPS75461  Mimulus aurantiacus var. aurantiacus P. F. Yorks 1975-5-31 430 Contra Costa ca. 1.6 km s Bear Creek Road (on Hampton Road, n of Briones Reservoir); Hampton Road Natural Preserve Comment
  JEPS78821  Mimulus aurantiacus var. aurantiacus Edward Lee 1936-5-24 2163 Contra Costa 10 mi from Marsh Creek Road; Morgan Territory Comment
  JEPS78823  Mimulus aurantiacus var. aurantiacus Edward Lee 1936-5-24 2165 Contra Costa 10 mi from Marsh Creek Road; Morgan Territory Comment
  RSA550837  Mimulus aurantiacus var. aurantiacus David M. Thompson 1992-6-3 1107 Contra Costa SW base of Mt. Diablo, E of Danville. 2.6 mi NE of Blackhawk and diablo rads along Mt. Diablo Scenic Boulvard and South Gate Road 378 Comment
  UC691762  Mimulus grandis Mary L. Bowerman 1930-6-10 294 Contra Costa Mineral Spring (North Road) Mount Diablo Comment
  UC2027721  Mimulus guttatus Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15513 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UC125132  Mimulus latidens Katharine Brandegee 1907-5-5 Contra Costa between Antioch and Marsh Creek Comment
  UC26995  Mimulus nasutus J. Burtt Davy 1893-5-13 214 Contra Costa Claremont Canyon to Fish Ranch fide fieldbook Comment
  UC691739  Mimulus nasutus Mary L. Bowerman 1931-4-18 724 Contra Costa at junction of e and ne forks Sycamore Canyon; Mount Diablo 396 Comment
  JEPS2966  Mimulus rattanii Mary L. Bowerman 1933-5-31 2222 Contra Costa Juniper Camp Mount Diablo Comment
  CAS-BOT-BC221677  Monardella douglasii A. D. E. Elmer 1903-7-1 4544 Contra Costa Mount Diablo Comment
  CAS-BOT-BC221679  Monardella douglasii John Thomas Howell 1942-7-19 17049 Contra Costa NE. of Deer Flat, Mt. Diablo Comment
  JEPS100054  Monardella villosa subsp. villosa G. Smick 2003-6-6 GAS 215 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS75499  Monardella villosa subsp. villosa P. F. Yorks 1974-6-16 180 Contra Costa ca. 1.6 km south of Bear Creek Road (on Hampton Road, north of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  UC1076314  Monolepis nuttalliana Herbert L. Mason 1931-4-5 5891 Contra Costa Antioch sandhills 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
  CAS-BOT-BC349621  Monolopia major Dr. A. Kellogg 1869-4-8 s.n. Contra Costa Antioch Comment
  POM55549  Monolopia major C. F. Baker 1903-4-27 s.n. Contra Costa Byron. Comment
  RSA289444  Monolopia major Dale E. Johnson 1975-4-12 188 Contra Costa West of Byron; 2.6 km (1.6 miles) west of Byron Highway (Brentwood-Bethany road) on Camino Diablo; just west of road summit; near sand quarry Comment
  CAS-BOT-BC445038  Montia linearis John Thomas Howell 1933-5-14 11226 Contra Costa St. Mary's College Comment
  UC3794  Muilla maritima Harley P. Chandler 1901-3-21 863 Contra Costa Concord Region of San Francisco Bay Comment
  CHSC68026  Myosurus minimus James D. Jokerst 1989-3-28 3058 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  UC1731499  Myosurus minimus Dean William Taylor 1971-3-28 961 Contra Costa along road J4 3 mi s of Byron (at Holley Road); road J4 at Holley Road 9 Comment
  CAS-BOT-BC7111  Myosurus minimus subsp. apus M. K. Curran 1884-1-1 s.n. Contra Costa Antioch Comment
  UC1101329  Myosurus sessilis Herbert L. Mason 1952-4-26 14272 Contra Costa 3.5 mi s of Byron Comment
  UC1101359  Myosurus sessilis Herbert L. Mason 1952-3-13 14200 Contra Costa 3.3 mi s Bryon Comment
  POM312426  Myosurus sessilis H. L. Mason 1952-4-14 14263 Contra Costa 3.5 miles S of Byron. Comment
  CDA19119  Myriophyllum spicatum R. M. Case 2001-5-8 PDR P 088776 Contra Costa Sierra Nevada; Mallard Reservoir on Arnold Industrial Way, Concord. 0 Comment
  UC2031468  Myriophyllum verticillatum Barbara Ertter with Brad Olson 1991-9-28 10837 Contra Costa San Pablo Reservoir between Orinda and El Sobrante Comment
  JEPS102918  Narcissus tazetta Barbara Ertter 1998-1-25 15910 Contra Costa so of Donner Canyon trailhead (Back Canyon Rd.); Mount Diablo Comment
  CAS-BOT-BC259906  Nassella lepida D. E. Breedlove 1970-4-18 17447 Contra Costa At the N edge of Lafayette above Laurel Drive 243 Comment
  CAS-BOT-BC259901  Nassella lepida Mary L. Bowerman 1935-6-8 3125 Contra Costa Mount Diablo. West road 2 miles from entrance, gully W of chapparal 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
  POM300686  Nassella pulchra Mary L. Bowerman 1933-5-25 2191 Contra Costa Alamo Canyon; above Wilson's barn. Oyster Ridge, west end of south face. Comment
Read comments
Nov 1 2011
  SEINET190914  Nassella pulchra A. A. Beetle 1941-3-28 1718 Contra Costa Orinda. Comment
  UC691268  Nassella pulchra Mary L. Bowerman 1935-4-17 2830 Contra Costa West road (= North Rd) 2 mi from entrance (se exposure); Mount Diablo 237 Comment
  UCD36916  Nassella pulchra Beecher Crampton 1956-5-14 3388 Contra Costa 6.7 miles southwest of city of Antioch, along ridge between old coal mining towns of Somersville and Nortonville. Comment
  UCD87531  Nassella pulchra Frank W. Gould 1941-4-20 1281 Contra Costa Near Richmond. Comment
  JEPS103663  Navarretia hamata subsp. parviloba David Gowen 2003-6-14 Contra Costa Lime Ridge Open Space, on fire road below transmission tower 274 Comment
  UC856837  Navarretia mellita John Thomas Howell 1938-6-30 13938 Contra Costa Head of Siesta Valley Comment
  JEPS116946  Navarretia nigelliformis subsp. radians David Gowen 2008-4-16 860 Contra Costa West end of Horse Valley. Banks of drainage south of #857. Comment
  JEPS116990  Navarretia nigelliformis subsp. radians David Gowen 2008-4-16 857 Contra Costa West end of Horse Valley. 146 Comment
  CAS-BOT-BC230478  Navarretia nigelliformis var. nigelliformis K. Curran 1884-6-1 s.n. Contra Costa Antioch Comment
  UC1124139  Navarretia pubescens C. M. Belshaw 1936-5-13 2115 Contra Costa 3.7 mi ene Tassajero; Mt. Diablo Quad. 670 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
  UC2042984  Navarretia pubescens Barbara Ertter with Dan Norris 1998-6-18 16223 Contra Costa Devil's Slide Trail from Knobcone Point Road, south side of Mount Diablo. Comment
  JEPS112008  Navarretia squarrosa D. G. Kelch 2004-7-9 04 .317 Contra Costa Ferndale Road Ferndale Road North of Alhambra Valley Road. Trail to west of road end. 240 Comment
  SEINET9296212  Navarretia squarrosa Unknown 1950-9-22 621 Contra Costa Contra Costa County Comment
  UCD35159  Navarretia squarrosa Beecher Crampton 1950-9-22 621 Contra Costa Vacant lot 1 mile north of Richmond. Comment
  UCD36023  Navarretia squarrosa Beecher Crampton 1949-6-5 469 Contra Costa Contra Cost County, along Highway 40, Pinole to San Pablo, above Garrity Creek, on top of West Hills. 30 Comment
  JEPS111834  Nemophila heterophylla A. G. Murdock 2004-4-30 258 Contra Costa Vaca Canyon 165 Comment
  JEPS49756  Nemophila heterophylla Rimo Bacigalupi, and Alice Howard, and Paul Hutchison 1967-3-29 9220 Contra Costa on w slope Las Trampas Ridge Upper reaches Bolinger Canyon, w slope Las Trampas Ridge (Upper reaches of Bolinger Canyon) 381 Comment
  UC592192  Nemophila heterophylla H. L. Mason 1929-3-15 5052 Contra Costa Nortonville; on grassy hillslopes Comment
  UC67125  Nemophila heterophylla Harley P. Chandler 1901-4-5 948 Contra Costa Pine Canyon , Pine Canyon (Mt. Diablo) Comment
  UC67127  Nemophila heterophylla Harley P. Chandler 1901-3-22 850 Contra Costa between Martinez and Port Costa (Region of San Francisco Bay); , bet Martinez and Port Costa Comment
  UC727741  Nemophila heterophylla Milo S. Baker 1946-4-20 11328 Contra Costa summit s Clayton; Summit s of Clayton Comment
  RSA75801  Nemophila heterophylla Lincoln Constance 1938-3-22 2031 Contra Costa Edge of Wildcat Canyon on north slope of the Berkeley Hills. 366 Comment
  JEPS3131  Nemophila menziesii Mary L. Bowerman 1931-3-8 557 Contra Costa w bank Mitchell Canyon, Mount Diablo Mount Diablo, Mitchell Canyon 304 Comment
  UC880892  Nemophila menziesii Lewis S. Rose 1941-3-13 41029 Contra Costa 3 mi w Byron; w of Byron 30 Comment
  RSA421347  Nemophila menziesii var. menziesii Mark Morris 1929-2-22 s.n. Contra Costa Mt. Diablo. Comment
  JEPS128779  Nicotiana acuminata var. multiflora Kevin Hintsa 1997-6-29 Contra Costa Mount Diablo State Park, floodplain of Pine Creek, near Pine Pond. Comment
  HSC28472  Nicotiana glauca J. D. Ackerman, A. M. Montalvo 1973-12-20 123 Contra Costa 5 mi. E of Clayton Comment
  JEPS44838  Oemleria cerasiformis H. H. Haworth 1917-4-22 Contra Costa Orinda Park Comment
  JEPS68943  Oemleria cerasiformis Edward Lee 1935-2-10 1271 Contra Costa Berkeley, Berkeley Hills, Wildcat Creek Wildcat Creek; Berkeley, Berkeley Hills, Wildcat Creek Comment
  UC691103  Oemleria cerasiformis Mary L. Bowerman 1933-4-22 1887 Contra Costa Curry Cave Point trail; Mount Diablo 396 Comment
  UC2029152  Oenothera deltoides subsp. cognata Barbara Ertter, Chris Thayer 1994-5-19 12782 Contra Costa Highway 4 between Brentwood and Oakley at Honey Lane (halfway between Cypress Rd. and Delta Rd.) Comment
  CAS-BOT-BC171588  Oenothera deltoides subsp. howellii J. H. Thomas 1953-4-25 3004 Contra Costa Antioch sand hills along San Joaquin River, 2 miles west of Antioch Bridge Comment
  CAS-BOT-BC171597  Oenothera deltoides subsp. howellii Walter Knight 1965-3-1 s.n. Contra Costa Antioch dunes. Comment
  POM355600  Oenothera deltoides subsp. howellii Peter H. Raven 1965-5-9 20181 Contra Costa Antioch dunes Comment
  UC971924  Oenothera deltoides subsp. howellii P. D. Hurd 1952-5-26 Contra Costa one mi e Antioch (in sand dunes close to w margin of river near its mouth); San Joaquin River 30 Comment
  CAS-BOT-BC171586  Oenothera deltoides subsp. howellii W. M. Klein 1958-6-9 433 Contra Costa Sandhills north of Antioch along the San Joaquin River channel. 1 Comment
  CDA38153  Oenothera deltoides subsp. howellii F. J. Brucato 1962-5-1 s.n. Contra Costa Antioch; Wilbur Ave. 0 Comment
  RSA119426  Oenothera deltoides subsp. howellii William M. Klein 1958-6-9 432 Contra Costa Sandhills N of Antoch, along the San Joaquin River Channel. 2 Comment
  RSA0004531  Oenothera deltoides var. howellii Alice Eastwood, J. T. Howell 1936-4-19 2147 Contra Costa Sand dunes at Antioch Comment
  CDA36713  Olea europaea D. G. Kelch 2010-10-5 10 .417 Contra Costa The Delta; Just east of Antioch bridge. Comment
  UC444919  Orobanche californica subsp. feudgei T. S. Brandegee June 1884 Contra Costa Antioch. Comment
  UC1076301  Orobanche fasciculata Herbert L. Mason 1926-5-7 2704 Contra Costa Near Summit of Mount Diablo. Comment
  UC35324  Orobanche fasciculata F. T. Bioletti 1894-5-13 Contra Costa Mount Diablo. Comment
  UC691505  Orobanche fasciculata Mary L. Bowerman 1935-5-16 2995 Contra Costa Mount Diablo. Russelman Park, just south of the north boundary of section 25 (east of gate). Comment
  UC2027723  Orobanche uniflora Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15511 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  JEPS99528  Orobanche vallicola Mary L. Bowerman 1977-6-11 Contra Costa Mount Diablo, Pine Canyon, Castle Rock Park (rest unclear). Comment
  UC1076297  Orobanche vallicola Herbert L. Mason 1929-9-21 5432 Contra Costa 3 mi above Clayton (Marsh Creek Road); Marsh Creek Road Comment
  CAS-BOT-BC502955  Orobanche vallicola John Thomas Howell 1929-9-21 4391 Contra Costa Marsh Creek Road, 7 miles SE of Clayton Comment
  POM15364  Orthocarpus erianthus C. F. Baker 1903-4-27 2792 Contra Costa Byron. Comment
  POM15629  Orthocarpus pusillus H. P. Chandler 1901-4-5 945 Contra Costa Mt. Diablo Comment
  UC1618306  Osmorhiza berteroi Barbara Ertter with Travis Columbus 1990-6-10 9108 Contra Costa near stream crossing on Spengler Creek ne Briones Peak (ne corner of park, w of Pleasant Hill); Briones Regional Park, Briones Hills 182 Comment
  UC691837  Osmorhiza brachypoda Mary L. Bowerman 1938-5-28 3650 Contra Costa Shady canyon Mount Diablo (junction of roads) 670 Comment
  CDA28455  Oxalis carnosa G. D. Barbe 1976-3-25 2117 Contra Costa International Succulent Institute, 10 Corte Sombrita, between Moraga and Orinda. 0 Comment
  CDA28456  Oxalis carnosa G. D. Barbe 1976-3-25 2117 Contra Costa International Succulent Institute, 10 Corte Sombrita, between Moraga and Orinda. 0 Comment
  HSC16707  Oxalis oregana D. A. Shally 1965-4-18 37 Contra Costa Canyon 1 mi. N of Canyon Store Comment
  UC2028103  Packera breweri Barbara Ertter with Christopher Baysdorfer 1998-5-10 16124 Contra Costa West side Lime Ridge Open Space northwest of Mount Diablo. Comment
  UCD134740  Packera breweri Cliff Low 1978-5-19 30 Contra Costa Back Canyon Creek east of Eagle Peak on Mount Diablo. 365 Comment
  SEINET9287601  Packera multilobata Unknown 1999-12-20 1219291 Contra Costa Along Wildcat Canyon Rd., 1.9 mi NW of intersection of Wildcat Canyon Rd and Dam Rd. vicinity of Orinda. Comment
  RSA125862  Paeonia californica G. R. Campbell 1956-4-6 15 Contra Costa Between Round Top and summit of Mt. Diablo. 305 Comment
  CAS-BOT-BC253783  Panicum hillmanii Walter Knight 1977-7-10 s.n. Contra Costa East Bay Regional Park District. Along Lafayette-Moraga Regional Trail. Intersection of Foye Street, Lafayette Comment
  JEPS103101  Papaver californicum Mary L. Bowerman 1978-5-14 Contra Costa E face of Eagle Peak, ravine toward Twin Peaks from Back Creek Mount Diablo Comment
  RSA721592  Papaver californicum Mary L. Bowerman 1978-5-14 s.n. Contra Costa Mount Diablo. E side of Eagle Peak, old mine wagon trail up Black Canyon. Comment
  UCD96018  Papaver heterophyllum Cliff Low 1978-5-19 16 Contra Costa Back Canyon Creek, east of Eagle Peak on Mount Diablo. 304 Comment
  UCD88468  Parapholis incurva A. A. Beetle 1942-4-1 3268 Contra Costa Brooks Island. San Francisco Bay. Comment
  CAS-BOT-BC259648  Paspalum dilatatum R. E. Frenkel 1963-5-15 189 Contra Costa E side of Marsh Creek Road 2 miles E of Clayton Comment
  UCD88942  Paspalum distichum E. K. Stillwell 1967-7-17 s.n. Contra Costa Brentwood. Comment
  CAS-BOT-BC259724  Paspalum distichum Walter Knight; et al. 1978-9-19 3266 Contra Costa Browns Island, Alder Point Comment
  UC2028420  Paspalum distichum Barbara Ertter 2000-9-30 17538 Contra Costa West side Mount Diablo, pond on west side of Briones-Mount Diablo TRail south of Stonegate Trail junction Comment
  UC573135  Pectocarya penicillata H. L. Mason 1932-3-20 6845 Contra Costa Antioch sand hills Comment
  UC573057  Pectocarya pusilla H. L. Mason 1931-4-5 5827 Contra Costa rd between Marsh Creek and Livermore Comment
  CHSC28128  Pedicularis densiflora R. A. Emmrich 1975-3-14 97 Contra Costa Ca. 1/2 mi w of Ranger Station no. 2 and 10 yds n of Diablo Rd., Mount Diablo State Park. 1127 Comment
  JEPS84382  Pedicularis densiflora Roxanne Bittman 1977-3-29 27 Contra Costa on n si9de of Mount Diablo Scenic Road about 10 mi from base of mountain Mount Diablo Scenic Road 762 Comment
  RSA123948  Pedicularis densiflora E. F. Sprague 1957-4-11 1124 Contra Costa Mount Diablo. N slope of Live Oak Canyon. 610 Comment
  UC692274  Pediomelum californicum Mary L. Bowerman 1930-6-7 282 Contra Costa Meridian Peak summit , Meridian Peak summit (Mount Diablo) Comment
  POM118165  Pediomelum californicum H. M. Hall, F. M. Essig, C. C. Hall 1916-5-31 10133 Contra Costa Summit of Mount Diablo. 1170 Comment
  UC1818872  Pelargonium inquinans Barbara Ertter, Brad Olson 1994-5-7 12757 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay. Openings, especially with seepage, near open brush. Comment
  JEPS112049  Pellaea andromedifolia D. G. Kelch 2004-4-25 04 .107 Contra Costa Martinez - West: Ozol Rock and Scenic Drive West Martinez on Scenic Dr. at Road Gate 28 Comment
  JEPS112051  Pellaea andromedifolia A. G. Murdock 2004-4-30 247 Contra Costa Franklin Canyon - McHarry Ranch Rd 126 Comment
  UC399537  Pellaea mucronata var. mucronata Michener May, 1894 Contra Costa Mt Diablo Comment
  JEPS4477  Penstemon centranthifolius G. Thomas Robbins 1940-5-19 324 Contra Costa e Antioch; bordering San Joaquin River e of Antioch Comment
  UC41706  Penstemon centranthifolius J. Burtt Davy 1895-4-7 889 Contra Costa Antioch Comment
  RSA101693  Penstemon centranthifolius H. L. Mason 1929-3-31 5156 Contra Costa Along San Joaquin River, Antioch. Comment
  SD108312  Penstemon centranthifolius Robert Doyle 1980-9-14 3879 Contra Costa quarry on Lime Ridge, north end, south of Ygnacio Valley Road between Walnut Creek and Concord Comment
  SEINET7719710  Penstemon centranthifolius Chesnut, Drew 1889-4-18 Contra Costa Antioch Comment
  POM14652  Penstemon heterophyllus subsp. purdyi C. F. Baker 1903-4-28 2872 Contra Costa Marsh Creek, Mt. Diablo. Comment
  RSA0027922  Penstemon heterophyllus subsp. purdyi Barbara J. Ertter 1998-4-4 15972 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, Quarry Hill. Comment
  JEPS85627  Penstemon heterophyllus var. heterophyllus W. L. Jepson 1921-6-16 9315 Contra Costa Mt. Diablo Comment
  NY601704  Penstemon heterophyllus var. heterophyllus W. L. Jepson 1921-6-16 9315 Contra Costa Mount Diablo Comment
  UC691517  Penstemon heterophyllus var. heterophyllus Mary L. Bowerman 1930-6-7 268 Contra Costa Meridian Peak summit (Meridian Peak crossed out) Mount Diablo Comment
  UC1481542  Penstemon heterophyllus var. purdyi Neil Havlik 1980-6-26 941 Contra Costa e side of Siesta Valley in a small ravine e side of Siesta Valley Comment
  UC691800  Pentachaeta alsinoides Mary L. Bowerman 1933-3-18 1753 Contra Costa Meridian Peak Mount Diablo (a little e of the meridian) Comment
  CAS-BOT-BC330456  Pentachaeta alsinoides M. K. Curran 1883-5-1 s.n. Contra Costa Foothills of Mount Diablo Comment
  UC133407  Pentachaeta exilis C. F. Baker 1923-4-28 2826 Contra Costa Marsh creek Mount Diablo Comment
  UC697213  Pentachaeta exilis Mary L. Bowerman 1933-5-10 2062 Contra Costa ridge at e end and s of Meridian Flat; Mount Diablo 822 Comment
  POM301041  Pentachaeta exilis Mary L. Bowerman 1935-5-8 2981 Contra Costa First main ridge east of Pioneer Camp. 762 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
  UC692566  Perideridia kelloggii Mary L. Bowerman 1935-6-28 3158 Contra Costa w meridian (flat on n side); Mount Diablo, Inner Black Hills 472 Comment
  RSA428314  Phacelia Alice Eastwood 1931-5-30 18617 Contra Costa Oak Spring Comment
  JEPS1458  Phacelia breweri Mary L. Bowerman 1935-4-26 2898 Contra Costa w Indian Ceremonial Spring; Mount Diablo 1021 Comment
  UC107330  Phacelia breweri Katharine Curran May 1883 Contra Costa Mt. Diablo Comment
  UC604429  Phacelia breweri H. L. Mason 1938-5-3 11750 Contra Costa trail between Juniper Camp and Deer Flat; Mount Diablo 990 Comment
  UC880995  Phacelia breweri Alice Eastwood 1915-5-30 4487 Contra Costa near type locality Mt. Diablo Comment
  UCD120274  Phacelia breweri P. B. K. 1916-5-1 s.n. Contra Costa Mt. Diablo. Comment
  JEPS25156  Phacelia californica G. Thomas Robbins with John Weiler 1959-5-23 4027 Contra Costa flats on w side San Francisco Bay, Richmond, Brooks Island Comment
  UC671750  Phacelia californica Lincoln Constance 1940-3-16 2524 Contra Costa margin of San Francisco Bay Point Richmond 15 Comment
  POM65595  Phacelia ciliata C. F. Baker 1903-4-26 2904 Contra Costa Byron Comment
  UC1950229  Phacelia ciliata Barbara Ertter 1992-3-8 10910 Contra Costa NE edge of Black Diamond Mines Regional Preserve, NE-heading canyon with steep loose sides ca 1/2 mi W of junction of Stewartville Trail and Fredrickson Lane Comment
  UC672410  Phacelia ciliata var. ciliata Herbert L. Mason 1929-3-31 5139 Contra Costa Briones Road Hills northeast of Mount Diablo Comment
  UC131485  Phacelia distans C. F. Baker 1903-4-28 2806 Contra Costa Antioch Comment
  RSA74783  Phacelia distans F. W. Peirson 1923-7-1 5302 Contra Costa Near summit of Mt. Diablo. Comment
  RSA83075  Phacelia distans Verne Grant, Alva Grant 1947-3-16 7892 Contra Costa East of Antioch. Comment
  RSA0027642  Phacelia divaricata Barbara Ertter, Tony Morosco 1998-4-12 16020 Contra Costa Mount Olympia on north side of Mount Diablo, Olympia Road down ridge west of summit. 854 Comment
  JEPS111837  Phacelia imbricata subsp. imbricata A. G. Murdock 2004-5-28 275 Contra Costa Pinole Peak 405 Comment
  UC107571  Phacelia imbricata subsp. imbricata K. Brandegee June 1883 Contra Costa Antioch Comment
  UC691693  Phacelia imbricata subsp. imbricata Mary L. Bowerman 1930-6-5 252 Contra Costa West rd 5.8 mi from entrance; Mount Diablo 457 Comment
  JEPS111825  Phacelia nemoralis subsp. nemoralis D. G. Kelch 2005-5-1 05 .189 Contra Costa Crockett - Edwards Canyon 150 Comment
  CAS-BOT-BC154330  Phacelia phacelioides Mrs. E. C. Sutcliffe 1920-5-30 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC154335  Phacelia phacelioides L. R. Abrams 1921-5-25 8016 Contra Costa Mt. Diablo on road to summit Comment
  JEPS1104  Phacelia phacelioides Mary L. Bowerman 1930-6-7 285 Contra Costa Meridian Peak summit Mount Diablo Comment
  UC691329  Phacelia phacelioides Mary L. Bowerman 1933-4-26 1923 Contra Costa ese peak (s face); Mount Diablo, North Peak ridge 609 Comment
  UC691332  Phacelia phacelioides Mary L. Bowerman 1932-4-16 1343 Contra Costa Eagle Point Mount Diablo (n side) 670 Comment
  JEPS1330  Phacelia suaveolens Mary L. Bowerman 1933-5-11 2078 Contra Costa w ridge Mount Diablo, Inner Black Hills Comment
  CDA31462  Phacelia tanacetifolia D. G. Kelch 2006-5-27 6 .219 Contra Costa Pinole Valley Park, S of Pinole Valley Road near crest of El Sobrante Ridge. Comment
  JEPS1284  Phacelia tanacetifolia Linda Gehringer 1914-3-29 Contra Costa Brentwood Comment
  UC107559  Phacelia tanacetifolia Mrs. Brandegee 1890-1 Contra Costa Comment
  CDA2277  Phalaris aquatica T. C. Fuller 1961-9-13 7004 Contra Costa Byron-Tracy Hwy (Hwy J4), 0.1 mile north of Delta-Mendota Canal. 0 Comment
  RSA720842  Phalaris aquatica Barbara Ertter, Richard K. Rabeler 1994-6-6 12823 Contra Costa Point Isabel in south Richmond Comment
  UC1818956  Phalaris aquatica Barbara Ertter, Kristin Ertter 1995-7-11 14466 Contra Costa Pine Creek on west side of Mt. Diablo southwest of Walnut Creek. Trailhead at Castle Rock; dried grasslands. 121 Comment
  UC768492  Phalaris minor R. F. Hoover 1937-5-14 2108 Contra Costa Franklin Creek Valley Comment
  CDA15270  Phalaris paradoxa G. F. Hrusa, D. Crowe 1998-5-8 14401 Contra Costa Sacramento Delta; Open sites near cyclone fence-line surrounding disturbed grasslands at E end of Dow Chemical property. Uncommon here. Comment
  JEPS127665  Phalaris paradoxa Barbara Ertter with David Gowen and Michael Park 2017-5-2 22809 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  UCD146727  Phalaris paradoxa G. F. Hrusa; D. Crowe 1998-5-8 14401 Contra Costa Sacramento-San Joaquin River Delta. East end of Dow Chemical property. 15 Comment
  UC84850  Phlox gracilis Katharine Brandegee May 1886 Contra Costa Antioch Comment
  JEPS48538  Phlox gracilis Elsa Kraeger 1926-3-7 Contra Costa just beyond toll gate on road to Mt. Diablo Comment
  JEPS96244  Phoenix canariensis Barbara Ertter, Brad Olson 1993-10-30 12292 Contra Costa w of railroad tracks n of mouth of Pinole Creek (San Pablo Regional Shoreline); San Pablo Regional Shoreline Comment
  HSC83448  Pholistoma membranaceum J. M. Tucker 1981-4-25 4454 Contra Costa Antonio Souza Ranch SW of Byron, summit of High Hill 309 Comment
  CDA7905  Phoradendron macrophyllum D. G. Kelch, A. G. Murdock 2005-1-16 5 .035 Contra Costa Carquinez Strait; Dutra fire road. Comment
  UC1078913  Phoradendron macrophyllum Job Kuijt 1958-1-12 1443 Contra Costa near Walnut Creek (Saranap); Saranap Comment
  CAS-BOT-BC141121  Phoradendron serotinum subsp. macrophyllum Lewis S. Rose 1930-12-10 s.n. Contra Costa Walnut Creek Comment
  POM212436  Phoradendron villosum Joseph A. Ewan 1933-10-15 8040 Contra Costa SW slope of Mt Diablo. 1067 Comment
  POM300605  Phoradendron villosum Mary L. Bowerman 1932-10-22 1636 Contra Costa Road to Quicksilver Mine; Flats at base of N peak. Mt Diablo. Comment
  JEPS125636  Phragmites australis Daniel Slakey with CNPS Volunteers 2015-9-12 224 Contra Costa Northern edge of Browns Island, at entrance to Crooked Slough. Comment
  SD241704  Phyllostachys aurea Barbara Ertter 2001-5-26 17652 Contra Costa Stamm Unit of Antioch Dunes National Wildlife Refuge east of Antioch. Comment
  CAS-BOT-BC202272  Pickeringia montana var. montana A. D. E. Elmer 1903-5-1 4315 Contra Costa Mount Diablo Comment
  CAS-BOT-BC202273  Pickeringia montana var. montana A. D. E. Elmer 1903-5-1 4315 Contra Costa Mount Diablo Comment
  CAS-BOT-BC202274  Pickeringia montana var. montana Mary L. Bowerman 1931-5-2 793 Contra Costa Mount Diablo. North end of Eagle Point ridge Comment
  JEPS65569  Pickeringia montana var. montana W. L. Jepson 1943-6-8 20844 Contra Costa Moraga Ridge Comment
  JEPS65576  Pickeringia montana var. montana W. L. Jepson 1918-6-3 7574 Contra Costa Donner Canyon Mt. Diablo 533 Comment
  UC1129855  Pickeringia montana var. montana R. W. Lundh 1932-8-20 135 Contra Costa 2 mi s Mt. Diablo (Rock City); Mount Diablo Quadrangle 502 Comment
  UC692282  Pickeringia montana var. montana Mary L. Bowerman 1933-2-4 1690 Contra Costa flat e Mt. Diablo-North Peak divide; Mount Diablo 822 Comment
  UC692692  Pickeringia montana var. montana Mary L. Bowerman 1931-5-2 793 Contra Costa Eagle Point Ridge Mount Diablo (n end) Comment
  UCD48018  Picrasma quassioides Ellen Dean; Petra Unger 2005-7-19 2700 Contra Costa Contra Costa Water District land, Byron Tract, just S of Hwy 4, along Old River, on the east bank. 1 Comment
  JEPS46917  Pinus attenuata W. L. Jepson 1908-2-23 2984 Contra Costa Moraga Ridge Comment
  SBBG336  Pinus attenuata J. M. Tucker 1941-9-26 411 Contra Costa summit of Moraga Ridge 500 Comment
Read comments
Sep 13 2011
  JEPS46807  Pinus coulteri T. H. Goodspeed 1909-1-1 Contra Costa near Clayton (Mt. Diablo); Mt. Diablo Comment
  JEPS46808  Pinus coulteri W. L. Jepson 1931-4-5 15726 Contra Costa Nortonville Comment
  UC440232  Pinus coulteri Mrs. H. P. Bracelin 1931-3-22 179 Contra Costa Nortonville Comment
  SEINET3872272  Pinus coulteri Stanley L. Welsh 2006-1-29 29007 Contra Costa Mount Diablo State Park. Steep slope.; 0 914 Comment
  UCD134547  Pinus coulteri Jo Ann Olson; Gary R. Robbins 1969-5-11 37 Contra Costa 1/3 mile south of Nortonville, ca. 5 miles south of Pittsburg. (The UC Davis Herbarium: This specimen has additional material available for examination in the fruit and cone cabinet. Fruit and cone cabinet # 166). 335 Comment
  CDA265  Pinus halepensis D. G. Kelch 2007-9-9 7 .582 Contra Costa Strait of Carquinez; W. Crockett, on hill above Dead Fish restaurant on thin soil over sandstone. Comment
  UC1051358  Pinus muricata N. Floy Bracelin 1941-10-19 1713 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  JEPS111991  Pinus pinea D. G. Kelch 2005-1-21 05 .7 Contra Costa Crockett Collected along railroad tracks in West Valona across from the decommissioned sewage treatment plant 15 Comment
  UC907503  Pinus pinea Walter S. Malloch 1950-6-21 Contra Costa Lakewood subdivision Walnut Creek Comment
  POM300617  Pinus sabiniana Mary L. Bowerman 1933-5-10 2069 Contra Costa One hundred feet below the Muir area. Comment
  UC1076352  Pinus sabiniana Herbert L. Mason 1929-10-8 5481 Contra Costa Nortonville Comment
  UC400311  Pinus sabiniana State Survey 1866-5-1 Contra Costa Monte del Diablo Comment
  UC1200775  Pinus thunbergii L. R. Wright 1960-3-10 Contra Costa near Bryant Reservoir <Briones?>; Orinda 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
  UC1789206  Pistacia atlantica Barbara Ertter with Dan Norris 2001-4-8 17603 Contra Costa Lime Ridge Open Space, main pit of west quarry area N of adjacent golf course 121 Comment
  UC1614071  Plagiobothrys Charles M. Belshaw 1935-6-24 780 Contra Costa 1/2 mi e of Grizzly Peak (n face of Bald Peak); Bald Peak Comment
  JEPS88006  Plagiobothrys acanthocarpus Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8117 Contra Costa ca. 15 air mi. s.w. Stockton (w. & adjacent to Clifton Court Forebay); s.e. Contra Costa Co. Comment
  RSA666367  Plagiobothrys acanthocarpus Barbara Ertter 1989-4-5 8117 Contra Costa Alkali sink W and adjacent to Clifton Court Forebay, ca 15 air miles SW of Stockton 0 Comment
  UC54745  Plagiobothrys bracteatus Jos. Burtt Davy 1900-3-24 6533 Contra Costa Stege Comment
  UC691335  Plagiobothrys bracteatus Mary L. Bowerman 1935-6-28 3167 Contra Costa s summit (by Old Government Trail); Mount Diablo, Chase Pond 548 Comment
  RSA721206  Plagiobothrys bracteatus Barbara Ertter 1995-5-7 14031 Contra Costa Three-Springs Trail on NE side of Mt. Diablo SE of Clayton 305 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
  UC518020  Plagiobothrys canescens Lewis S. Rose 1933-4-17 33098 Contra Costa Antioch Comment
  UC882307  Plagiobothrys canescens Lewis S. Rose 1933-3-29 33046 Contra Costa Pittsburg Comment
  UC2027838  Plagiobothrys canescens Barbara Ertter with Dan Norris 2001-4-15 17613 Contra Costa West side Mount Diablo, divide NW of pond at base of China Wall formation. Comment
  UC78081  Plagiobothrys fulvus T. S. Brandegee May, 1889 Contra Costa Antioch Comment
  UC575686  Plagiobothrys fulvus Alice Eastwood and John Thomas Howell 1935-4-7 2120 Contra Costa sandy hills on Marsh Creek Road near Byron Comment
  RSA14931  Plagiobothrys fulvus var. campestris Alice Eastwood, John Thomas Howell 1935-4-7 2120 Contra Costa Near Byron on Marsh Creek Road. Comment
  RSA666360  Plagiobothrys leptocladus Barbara Ertter, J. D. Jokerst, D. Magney 1989-4-5 8129 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  UC1073381  Plagiobothrys nothofulvus George B. Rossbach 1955-3-20 465 Contra Costa sw base Mt. Diablo Comment
  UC2070573  Plagiobothrys stipitatus Barbara Ertter with David Gowen and Mike Park 2004-4-13 18348 Contra Costa Black Diamond Mines Regional Park south of Pittsburg, ca 1 km due east of Sidney Flat Headquarters. Comment
  POM64765  Plagiobothrys stipitatus C. F. Baker 1903-4-27 2799 Contra Costa Byron. Comment
  UC765574  Plagiobothrys stipitatus var. micranthus R. F. Hoover 1937-5-14 2121 Contra Costa Byron Hot Springs Comment
  UC78209  Plagiobothrys stipitatus var. micranthus T. S. Brandegee 1889-5-1 Contra Costa Antioch Comment
  UC24572  Plagiobothrys stipitatus var. stipitatus F. T. Bioletti 1892-1 Contra Costa Byron Comment
  UC573066  Plagiobothrys stipitatus var. stipitatus H. L. Mason 1929-3-31 5145 Contra Costa Briones Valley Comment
  UC691336  Plagiobothrys tenellus Mary L. Bowerman 1933-5-8 2033 Contra Costa flat n Rock City Camp; Mount Diablo Comment
  CHSC67188  Plagiobothrys trachycarpus James D. Jokerst 1991-3-28 3229 Contra Costa Kellogg Watershed Inundation Zone at enclosure at 'The Windmills,' N of Livermore. Comment
  JEPS111833  Plagiobothrys trachycarpus A. G. Murdock 2004-3-19 230 /231 Contra Costa Hercules - Carbon 50 Comment
  UC767584  Plagiobothrys trachycarpus R. F. Hoover 1941-4-12 4840 Contra Costa 1 mi. n. Lone Tree Valley Comment
  UC2029044  Plagiobothrys trachycarpus Barbara Ertter 2000-3-19 16893 Contra Costa southwest flank of Mount Diablo, east of Pine Ridge, below Wall Point Road Comment
  UC1618130  Plantago coronopus Nancy Hillyard 1997-7-1 Contra Costa Tilden Park in hills behind Berkeley (on Nimitz Trail); Tilden Park, Nimitz Trail 300 Comment
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Aug 20 2009
  UC2029103  Plantago coronopus Barbara Ertter 1990-10-24 9684 Contra Costa Martinez Regional Shoreline on Carquinez Strait. Local near arch bridge. Comment
  UC1745837  Plantago elongata Annetta M. Carter 1935-3-10 752 Contra Costa Kirker Pass, Donovan Rd. to Pittsburg. Comment
  UC1950081  Plantago elongata Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8128 Contra Costa alkali sink W and adjacent to Clifton Court Forebay, ca 15 airmiles SW of Stockton Comment
  RSA181409  Plantago erecta James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  UC2032844 Image available Plantago erecta Doran, Andrew Scott 2012-3-20 715 Contra Costa Trail down from highest point of Brooks Island. South east part of Island. Comment
  SBBG122787  Plantago erecta B. Ertter, J. Jokerst, D. Magney 1989-4-5 8141 Contra Costa sink W and adjacent to Clifton Court Forebay, ca. 15 air mi SW of Stockton Comment
  SD131987  Plantago erecta W. L. Jepson 1923-4-22 9872 Contra Costa On hilltops. Mt. Diablo. Comment
  JEPS22023  Plantago lanceolata G. Thomas Robbins with S. Galen Smith 1958-6-2 3853 Contra Costa just e Hercules city boundary (Franklin Canyon Road (State Highway 4)); Refugio Valley 18 Comment
  JEPS112000  Plantago major D. G. Kelch 2004-6-6 04 .227 Contra Costa Martinez - Train Station Downtown Martinez. Alhambra Creek near bay and railroad Station. Large perennial to 65 cm. In wet areas. 2 Comment
  UCD124520  Plantago major Malcolm A. Nobs; S. Galen Smith 1949-7-8 947 Contra Costa Otto's Black Bass Resort, 4 miles N of Kingston. Comment
  UCD124528  Plantago major M. Wiesendanger 1926-6-1 1528 Contra Costa Richmond. Comment
  CDA32860  Plantago subnuda D. G. Kelch 2010-10-5 10 .423 Contra Costa The Delta.; Antioch shoreline. West of Fulton shipyard. Comment
  JEPS112002  Platanus racemosa D. G. Kelch 2003-8-13 03 .122 Contra Costa Arroyo del Hambre Along Alhambra Creek E of Mt Wanda. w/ AGM 74 Comment
  UC101594  Platystemon californicus Katharine Brandegee 1907-5-5 f Contra Costa between Antioch and Marsh Creek; between Antioch and Marsh Creek Comment
  UC56196  Platystemon californicus H. M. Hall 1901-3-16 1654 Contra Costa Point Richmond; region of San Francisco Bay, Point Richmond Comment
  UC566962  Platystemon californicus R. C. Wilson 1935-3-26 143 Contra Costa 2 mi n Walnut Creek; Concord Quad. 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
  JEPS12782  Plectritis macrocera Rimo Bacigalupi with G. T. Robbins 1955-5-4 4975 Contra Costa s of and above Nortonville ((site)) 304 Comment
  JEPS14520  Plectritis macrocera L. T. Dempster 1956-5-26 1003 Contra Costa above Overhill Court (Orinda); Orinda Comment
  UC691523  Plectritis macrocera Mary L. Bowerman 1933-4-15 1866 Contra Costa Canyon s of Arroyo del Cerro (Mount Diablo); Mount Diablo 411 Comment
  UC400145  Pleuropogon californicus Ynes Mexia 1929-4-21 2388 Contra Costa junction of Franklin Canyon Comment
  UCD90158  Pleuropogon californicus Peter Kamb; Francia Chisaki, Galem Smith 1951-4-14 1978 Contra Costa 0.2 miles south of junction of Highways 4 and 21, 7 miles north of Walnut Creek. Comment
  CAS-BOT-BC260947  Pleuropogon californicus var. californicus Peter Kamb; Francia Chisaki; Galen Smith 1951-4-14 1978 Contra Costa Margins of small pond 0.2 miles south of junction of Highways 4 and 21, 7 miles north of Walnut Creek Comment
  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
  UC485228  Pluchea odorata var. odorata H. M. Hall 1916-8-16 10272 Contra Costa Martinez San Francisco Bay Region Comment
  UC1024731  Poa annua Leo Whitney 1935-4-21 3059 Contra Costa Corral Hollow Comment
  CAS-BOT-BC246615  Poa howellii Edward Lee 1936-4-19 2007 Contra Costa Northeast slope of the island. Red Rock, San Francisco Bay Comment
  UC691190  Poa howellii Mary L. Bowerman 1935-5-18 3020 Contra Costa nw facing slope across rd from and a little e of Parking area; Mt Diablo 1066 Comment
  UC692328  Poa howellii Mary L. Bowerman 1933-5-21 2148 Contra Costa below Grape Spring (s from Curry Canyon); Mt Diablo 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
  CAS-BOT-BC246645  Poa howellii Peter H. Raven; H. L. Mason; R. Ornduff; et al 1957-4-11 10622 Contra Costa Curry Canyon, 4.0 miles s. of Recreation Ground Comment
  CDA33806  Poa howellii D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .109 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  CHSC25045  Poa secunda subsp. secunda Willis Ball 1975-3-9 480 Contra Costa In area #8. On slope of a hill ca. 510 yds. w of Contra Loma Blvd. 124 Comment
  UC39568  Poa secunda subsp. secunda Alice Eastwood 1893-5-3 Contra Costa Antioch Comment
  UC691181  Poa secunda subsp. secunda Mary L. Bowerman 1932-4-27 1381 Contra Costa s face Oyster Ridge (canyon w of Riggs Canyon); Mt Diablo 335 Comment
  UC691189  Poa secunda subsp. secunda Mary L. Bowerman 1931-4-11 693 Contra Costa Pine Canyon; Mt Diablo 121 Comment
  UC692417  Poa secunda subsp. secunda Mary L. Bowerman 1935-4-19 2859 Contra Costa near Turtle Rock (hillside opposite side of rd); Mt Diablo 457 Comment
  UCD36915  Poa secunda subsp. secunda Beecher Crampton 1956-5-14 3387 Contra Costa 6.7 miles SW of Antioch, along ridge between old coal mining towns of Somersville and Nortonville. Comment
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Jul 1 2011
  UCD90795  Poa secunda subsp. secunda Beecher Crampton 1956-5-14 3387 Contra Costa 6.7 miles SW of Antioch, between old coal mining towns of Somersville and Nortonville. Comment
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Jul 1 2011
  UCD91671  Poa secunda subsp. secunda P. B. Kennedy 1916-5-1 s.n. Contra Costa Pinehurst. 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
  UCD91679  Poa secunda subsp. secunda P. B. Kennedy 1925-4-25 s.n. Contra Costa Road to Sycamore Canyon, Mt. Diablo. Comment
  SEINET13947037 Image available Pogogyne Joseph Andorfer Ewan 1936-1 9694 Contra Costa W slope of Bald Peak, San Pablo Ridge Comment
  HSC14299  Pogogyne douglasii Leo Koch 1940-6-5 1002 Contra Costa Saline flat 2 mi. S of San Rafael ferry dock Comment
  POM63422  Pogogyne douglasii A. D. E. Elmer 1903-05 4320 Contra Costa Walnut Creek. 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
  JEPS112475  Pogogyne serpylloides D. G. Kelch 2005-3-25 05 .78 Contra Costa Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak 150 Comment
  RSA0027949  Pogogyne serpylloides Barbara Ertter 1997-9-14 15803 Contra Costa WSW base of Mount Diablo, along creek at fence line between Pine Ridge and lower Wall Point Road from Macedo Ranch. Comment
  UC1818877  Polygonum Barbara Ertter 1995-8-19 14504 a 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
  UC691131  Polygonum amphibium Mary L. Bowerman 1935-7-22 3185 Contra Costa Hidden Pond Mount Diablo 518 Comment
  UC692147  Polygonum amphibium Mary L. Bowerman 1935-7-22 3182 Contra Costa Chase Pond Mount Diablo (in water 4 feet from shore, s side of Meridian Peak, by Old Government Trail) 548 Comment
  UC692068  Polygonum amphibium var. emersum Mary L. Bowerman 1931-6-16 928 Contra Costa Chase Pond Mount Diablo (by Old Government Trail) 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
  CAS-BOT-BC414177  Polygonum aviculare subsp. depressum R. E. Frenkel 1963-9-8 278 Contra Costa On Walnut Blvd., Walnut Creek Comment
  UC1784908  Polygonum aviculare subsp. depressum Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15671 Contra Costa Martinez Comment
  CDA23558  Polygonum aviculare subsp. neglectum D. G. Kelch 2007-10-6 7 .632 Contra Costa Carquinez Strait; Fernandez Ranch. Muir Land Trust Property 4.5 km W of Rodeo. Comment
  CDA2797  Polygonum cuspidatum G. D. Barbe 1975-10-29 2101 Contra Costa Bank of Lafayette Creek, Mt. Diablo Blvd. at Village Center, Lafayette 0 Comment
  JEPS112022  Polygonum hydropiperoides Dean G. Kelch and Andrew G. Murdock 2004-6-6 DGK 04 .228 Contra Costa Martinez - Train Station. Downtown Martinez. Alhambra Creek near bay and railroad Station. Comment
  UC1784203  Polygonum persicaria Ethel Crum 1930-9-29 862 Contra Costa Marsh Creek Road to Holt Comment
  UC1222107  Polypodium calirhiza Joseph Andorfer Ewan 1934-3-10 8657 Contra Costa 1/2 mi below Orinda rd. bridge; Wildcat Canyon Comment
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Aug 23 2009
  UC1541044  Polypodium calirhiza Dick Moe 1985-2-24 Contra Costa Red Rock Isl.; San Francisco Bay Comment
  CAS-BOT-BC72043  Polypodium calirhiza Mary L. Bowerman 1935-3-15 2736 Contra Costa Arroyo del Cerro, east fork 262 Comment
  CAS-BOT-BC233018  Polypogon interruptus Mary L. Bowerman 1931-4-4 656 Contra Costa Mount Diablo. West Road 4.5 miles from entrance Comment
  CDA9488  Polypogon monspeliensis D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .213 Contra Costa Byron Airport. Comment
  UC790996  Polypogon monspeliensis A. A. Beetle 1941-6-24 1750 Contra Costa San Francisco Bay Point Richmond; , Point Richmond Comment
  JEPS102910  Polystichum Barbara Ertter with Susan D'Alcamo 1998-6-12 16194 Contra Costa E end of Bald Ridge Tail W of Prospectors Gap Mount Diablo 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
  UC4923  Populus fremontii subsp. fremontii W. C. Blasdale 1901-9-28 Contra Costa San Pablo; at the old Castro house, along the creek Comment
  CAS-BOT-BC267113  Potamogeton Walter Knight; L. R. Heckard; B. Johnson 1978-9-28 3272 Contra Costa Mouth of Crooked Slough, Browns Island Comment
  CAS-BOT-BC267114  Potamogeton Walter Knight; L. R. Heckard; B. Johnson 1978-9-28 3273 Contra Costa Mouth of Crooked Slough, Browns Island Comment
  UC1606288  Potamogeton crispus Barbara Ertter, B. Olson, D. Lake, L. Hosley and A. Youngson 1991-10-20 10865 Contra Costa just w of Antioch marina (along levee at water's edge, accessed from marina); Dow Wetlands Preserve Comment
  SD211523  Potamogeton diversifolius Barbara Ertter, Brad Olson 1991-9-28 10839 Contra Costa San Pablo Reservoir between Orinda and El Sobrante, in shallow water at South end of reservoir 91 Comment
  UC766803  Proboscidea lutea R. F. Hoover 1937-8-31 2705 Contra Costa Pittsburg Comment
  CAS-BOT-BC158576  Prunus Walter Knight 1965-3-1 s.n. Contra Costa Antioch Dunes Comment
  UC1819021  Prunus dulcis Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14642 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; packed ground of trailside. Comment
  JEPS112091  Prunus lyonii D. G. Kelch 2004-5-9 04 .215 Contra Costa Crockett - Eckley Hills North of Bull Valley Staging Area. Rare 13 Comment
  UC1128498  Prunus subcordata R. W. Lundh 1932-9-3 157 Contra Costa 1 mi n of North Peak 609 Comment
  UC691157  Prunus subcordata Mary L. Bowerman 1931-4-5 674 Contra Costa between rocky point below Gregory Ranch and road below Mount Diablo Comment
  UC1614254  Prunus virginiana var. demissa Charles M. Belshaw 1935-6-10 695 Contra Costa Morgan Territory Road Comment
  POM300692  Prunus virginiana var. demissa Mary L. Bowerman 1933-5-21 2148 -a Contra Costa Grape Spring (S from Curry Canyon) Comment
  JEPS111723  Pseudognaphalium californicum D. G. Kelch 2004-7-9 04 .295 Contra Costa Crockett - Carquinez Scenic Drive Carq. Scenic Dr. East of Crockett West of Bull Valley SA 60 Comment
  JEPS75547  Pseudognaphalium californicum P. F. Yorks 1975-7-5 467 Contra Costa ca 1.5 mi s Bear Creek Road (on Hampton Road in Hampton Road Natural Reserve, n of Briones Reservoir) 180 Comment
  UC691824  Pseudognaphalium californicum Mary L. Bowerman 1935-5-30 3089 Contra Costa Eagle Point ridge 320 Comment
  JEPS99520  Pseudognaphalium luteoalbum Mary L. Bowerman 1978-6-24 Contra Costa Mount Diablo, Mitchell Creek, below reservoir. 190 Comment
  JEPS75548  Pseudognaphalium ramosissimum P. F. Yorks 1975-8-29 491 Contra Costa on Hampton Road ca 1.6 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Preserve 180 Comment
  UC1584859  Pseudognaphalium stramineum Jerry Powell 1987-9-7 1522 Contra Costa San Pablo Reservoir San Pablo Reservoir (weed in floodplain) Comment
  UC1818943  Pseudognaphalium thermale Barbara Ertter, Gary Schoolcraft 1996-4-7 14569 Contra Costa Point San Pablo in west Richmond, crest of road to yacht harbor, coastal grassland on ridge southwest-facing slope. Comment
  UC691818  Psilocarphus tenellus Mary L. Bowerman 1931-4-11 702 Contra Costa Mouth of Pine Canyon Mount Diablo Comment
  JEPS12780  Psilocarphus tenellus Rimo Bacigalupi 1955-5-4 4970 Contra Costa just se of old tunnel of the Tunnel Road; summit Oakland Hills 426 Comment
  RSA600819  Psoralea physodes Joseph A. Ewan 1934-4-8 8752 Contra Costa Mt. Diablo: Marsh Creek. 243 Comment
  RSA448385  Ptelea baldwinii subsp. crenulata John Doyen, Glenn Gorelick 1966-4-22 s.n. Contra Costa Russelman Park. Mt. Diablo State Park. Comment
  CAS-BOT-BC148627  Ptelea crenulata Alice Eastwood 1915-5-30 4440 Contra Costa Mount Diablo Comment
  CAS-BOT-BC148629  Ptelea crenulata Alice Eastwood 1897-5-31 s.n. Contra Costa Mount Diablo Comment
  CAS-BOT-BC148643  Ptelea crenulata V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Val. Comment
  JEPS40170  Ptelea crenulata W. L. Jepson 1931-4-5 15721 Contra Costa near Nortonville Comment
  JEPS40172  Ptelea crenulata W. L. Jepson 1907-4-27 2648 Contra Costa Mt. Diablo Comment
  SJSU758  Ptelea crenulata C. D. Duncan 1942-4-26 Contra Costa lower E slope, Mt Diablo Comment
  UC137407  Ptelea crenulata C. F. Baker 1903-4-28 2943 Contra Costa Mitchell's Canyon; Mt. Diablo Comment
  UC17374  Ptelea crenulata Prof. W. L. Jepson 1898-10-18 Contra Costa Mt. Diablo Comment
  UC85434  Ptelea crenulata Katharine Brandegee 1907-6-16 Contra Costa hills back of Antioch Comment
  CAS-BOT-BC148642  Ptelea crenulata H. E. McMinn 1922-6-2 95 Contra Costa In ravine on north slope of Mt. Diablo Comment
  UCD38732  Ptelea crenulata Beecher Crampton 1957-7-9 4273 Contra Costa 2-3 miles northwest Martinez on the road to Crockett. Comment
  UC692210  Pterostegia drymarioides Mary L. Bowerman 1931-3-29 617 Contra Costa e. end Cave Point Ridge; Mt. Diablo Comment
  UCD92236  Puccinellia simplex Beecher Crampton 1968-3-27 8233 Contra Costa SE corner, ca. 3.5 miles south of Byron. Comment
  UC2042941  Pyracantha angustifolia Barbara Ertter 1991-5-12 9811 Contra Costa Point Isabel Regional Shoreline in SW corner of El Cerrito, on San Francisco Bay. Comment
  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
  CAS-BOT-BC45656  Quercus agrifolia John Thomas Howell 1950-7-5 26638 Contra Costa Nortonville Comment
  CHSC24131  Quercus agrifolia M. A. Callahan 1976-4-11 1 Contra Costa 45 ft. nnw of house at 1976 Mohawk Dr., Pleasant Hill. Growing on steep hillside; w side Oak Wd. 121 Comment
  UC1748013  Quercus agrifolia E. Dean with B. Ertter, J. M. Tucker, K. Chaney 2000-9-13 652 Contra Costa El Sobrante Ridge, upslope of the terminus of Heavenly Ridge Rd., S of jct of Heavenly Ridge Trail and Manzanita Trail El Sobrante (overlooking city of El Sobrante) 213 Comment
  UCD45040  Quercus agrifolia J. M Tucker 1946-3-14 1375 Contra Costa Small tree ca. 15 feet tall; sunny southeast-faicng slope, on border of redwood grove associated with Ceanothus thyrsiflorus and Baccharis; Redwood Peak, ca. 200 yards south of summit, Contra Costa County, California. Comment
  UC2042966  Quercus berberidifolia Barbara Ertter, Brad Olson, Diane Lake, Seth Adams, et al. 1994-9-11 13092 Contra Costa Chaparral Springs addition to Mt. Diablo State Park, north side of Marsh Creek Road at high point southeast of Clayton. Comment
  CDA31069  Quercus chrysolepis D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .232 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  CAS-BOT-BC86123  Quercus dumosa Mary L. Bowerman 1932-9-17 1584 Contra Costa Mount Diablo. Donner Canyon, west fork: Bank between forks 304 Comment
  UC1135564  Quercus durata R. C. Wilson 1935-3-29 164 Contra Costa 1 mi w Deer Flat; Mount Diablo 685 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
  UC691308  Quercus kelloggii Mary L. Bowerman 1931-9-27 1047 Contra Costa n side North Peak (Quicksilver Mine); Mount Diablo Comment
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Jan 15 2014
  JEPS75531  Quercus lobata P. F. Yorks 1976-8-5 512 Contra Costa n of Briones (2.4 km s of Bear Creek Road on Hampton Road in Hampton Road Natural Reserve) 200 Comment
  UCD46828  Quercus lobata John M. Burns 1959-8-16 s.n. Contra Costa Tilden Regional Park, Berkeley Hills, Contra Costa County, California. 1 Comment
  UCD47072  Quercus palmeri J. M. Tucker 1981-5-31 4459 Contra Costa California, Contra Costa County: Antonio Souza Ranch southwest of Byron (extended Section NW quarter Sec. 31, R3E, T1S, Mt. Diablo Meridian). 309 Comment
  UCD81372  Quercus palmeri J. M. Tucker 1981-4-25 4453 -G Contra Costa Antonio Souza Ranch southwest of Byron. Mt. Diablo Meridian. 309 Comment
  SBBG115590  Quercus parvula var. shrevei E. Dean, B. Ertter, J. M. Tucker, K. Chaney 2000-9-13 650 Contra Costa City of El Sobrante, El Sobrante Ridge, upslope of the terminus of Heavenly Ridge Rd, jct of Heavenly Ridge Trail and Manzanita Trail 213 Comment
  UCD17417  Quercus parvula var. shrevei E. Dean; with B. Ertter, J. M. Tucker, and K. Chaney 2000-9-13 653 Contra Costa California. Contra Costa County: City of El Sobrante; 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
  UCD47151  Quercus parvula var. shrevei H. D. Jones 1910-11-26 s.n. Contra Costa Mt. Diablo, Contra Costa County. Comment
  CAS-BOT-BC104717  Quercus wislizeni Le Roy Abrams 1910-10-8 4354 Contra Costa Mt. Diablo summit 1158 Comment
  UC691297  Quercus wislizeni Mary L. Bowerman 1933-9-30 2449 Contra Costa e end Meridian Flat; Mount Diablo 807 Comment
  UC691310  Quercus wislizeni Mary L. Bowerman 1931-5-19 868 Contra Costa Donner Canyon trail Mount Diablo 274 Comment
  SEINET13954084 Image available Quercus wislizeni Peter H. Raven 1950-1 1355 Contra Costa Muraga Ridge 305 Comment
  CDA22082  Quercus wislizeni var. wislizeni D. G. Kelch 2004-3-13 4 .04 Contra Costa Mt Diablo Region.; Road cut along Marsh Creek Rd about 1.5 miles W of Deer Valley Rd. Comment
  SJSU10139  Quercus wislizeni var. wislizeni A. W. Jacobs 1938-10-1 Contra Costa lower E slope of Mt Diablo, 5 mi S of Clayton Comment
  CAS-BOT-BC379108  Ranunculus aquatilis var. diffusus W. W. Carruth 1902-4-29 s.n. Contra Costa Mount Diablo Comment
  POM268432  Ranunculus californicus Lyman Benson 1935-3-16 6271 Contra Costa Mt. Diablo, Watershed: Walnut Creek; Mountain Range: Mt. Diablo. 915 Comment
  POM268438  Ranunculus californicus Mary L. Bowerman 1931-2-22 521 Contra Costa Sycamore Canyon Comment
  SEINET13717644  Ranunculus californicus Unknown 1948-2-12 1103 Contra Costa West facing slope along Bear Creek Canyon in Lawson Hill area. Comment
  UC692188  Ranunculus canus Mary L. Bowerman 1931-3-21 587 Contra Costa Sycamore Canyon Mount Diablo 335 Comment
  POM268437  Ranunculus canus var. laetus Mary L. Bowerman 1931-3-8 563 Contra Costa W bank of Mitchell Canyon near mouth with oak and pines Comment
  UC1607964  Ranunculus hebecarpus Donald G. Nelson 1937-4-29 507 Contra Costa Road from Pinole south towards Alhambra Road Pinole Comment
  UC692123  Ranunculus hebecarpus Mary L. Bowerman 1931-3-29 613 Contra Costa Riggs Canyon Mount Diablo Comment
  UC9445  Ranunculus hebecarpus Geol. Survey 1862-1 1049 Contra Costa Mt. Diablo; foothills Comment
  CDA33805  Ranunculus hebecarpus D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .113 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 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
  JEPS54990  Ranunculus muricatus W. L. Jepson 1918-6-5 7593 Contra Costa Donner Canyon Mt. Diablo Comment
  POM269270  Ranunculus muricatus Mary L. Bowerman 1933-4-15 1844 Contra Costa Canyon south of Arroyo del Cerro, about 250 ft. below spring; Comment
  POM300585  Ranunculus muricatus Mary L. Bowerman 1938-5-25 3629 Contra Costa Arroyo Del Cerro by N road Comment
  PASA2644  Ranunculus occidentalis Annetta Carter 1929-3-31 140 Contra Costa Near Clayton Comment
  UC2028579  Ranunculus occidentalis Barbara Ertter with Linda Vorobik 2001-3-24 17572 Contra Costa Lime Ridge Open Space east of Walnut Creek, eastern edge overlooking Crystyl Springs subdivision. 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
  CDA33564  Ranunculus sceleratus Guise, Deviney 2010-5-28 PDR# 1645152 Contra Costa Danville; Mariani Ranch, Finley Rd. near School Street. 0 Comment
  UC2029070  Raphanus raphanistrum Barbara Ertter 2000-7-16 17414 Contra Costa Little Pine Creek Road on west side of Mount Diablo. Comment
  JEPS79401  Rhamnus californica Edward Lee with C. Belshaw 1935-12-28 1705 Contra Costa near Las Trampas Peak summit; Las Trampas Peak 502 Comment
  JEPS112065  Rhamnus crocea A. G. Murdock 2004-5-28 290 Contra Costa Pinole Peak 405 Comment
  UC692581  Rhamnus crocea Mary L. Bowerman 1930-6-22 360 Contra Costa Mitchell Canyon Mount Diablo Comment
  POM136516  Rhamnus ilicifolia A. D. E. Elmer 1903-05 4326 Contra Costa Mount Diablo. Comment
  UC1121873  Rhamnus ilicifolia R. W. Lundh 1932-8-15 127 Contra Costa 1 mi w Round Valley; Mt. Diablo Quad. 228 Comment
  UC73348  Rhamnus ilicifolia Milo S. Baker 1904-6-24 Contra Costa near summit of Mt. Diablo; Mt. Diablo Comment
  UC1818932  Rhamnus tomentella subsp. tomentella Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14593 Contra Costa East side of Mt. Diablo, mid-slope on Prospectors-Gap Rd. in solid brushland. Comment
  CAS-BOT-BC200695  Rhus aromatica Peter H. Raven; H. L. Mason; R. Ornduff; et al. 1957-4-11 10625 Contra Costa Curry Canyon, 4.0 mi. s. of Recreation Ground Comment
  UC466053  Ribes Tracy J. Storer 1912-7-13 Contra Costa Mt. Diablo 914 Comment
  CAS-BOT-BC92920  Ribes californicum var. californicum John Thomas Howell 1931-2-21 5730 Contra Costa North side of Mount Diablo. Comment
  UC11524  Ribes divaricatum var. pubiflorum J. Burtt Davy 1895-4-13 997 Contra Costa near Lafayette Comment
  CAS-BOT-BC168921  Ribes malvaceum L. R. Abrams 1921-5-25 8060 Contra Costa Near summit Mt. Diablo Comment
  UC1614322  Ribes malvaceum Charles M. Belshaw 1935-12-28 1422 Contra Costa Las Trampas Ridge, on trail above ranch house Las Trampas Ridge Comment
  CAS-BOT-BC206014  Ribes menziesii Mary L. Bowerman 1933-6-3 2231 Contra Costa Mount Diablo. Summit Comment
  SEINET5339680  Ribes menziesii var. leptosmum P. Del Monte 1976-3-28 s.n. Contra Costa Morgan territory road, 1 mile from junction with Marsh creek road 122 Comment
  SEINET13942922 Image available Ribes victoris Joseph Andorfer Ewan 1936-1 9739 Contra Costa Thickets along Wildcat Creek Comment
  CAS-BOT-BC362962  Rigiopappus leptocladus Mary L. Bowerman 1931-4-4 669 Contra Costa Mount Diablo. West of Turtle Rock Comment
  CAS-BOT-BC362963  Rigiopappus leptocladus Brandegee 1889-5-1 s.n. Contra Costa Antioch Comment
  CDA30988  Rigiopappus leptocladus D. G. Kelch, Abigail Moore 2010-4-7 10 .096 Contra Costa Mt. Diablo. Upper Mitchell Canyon. Comment
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May 4 2013
  UC691502  Rigiopappus leptocladus Mary L. Bowerman 1933-5-10 2064 Contra Costa ridge below Indian Ceremonial Spring; Mount Diablo Comment
  CAS-BOT-BC362964  Rigiopappus leptocladus Brandegee No date on label s.n. Contra Costa Antioch Comment
  UC1795706  Rigiopappus leptocladus Barbara Ertter, Susan D'Alcamo 1994-4-24 12463 Contra Costa Mount Diablo east Walnut Creek, Bald Ridge Trail above Murchio Gap 762 Comment
  UC1050660  Rondeletia gratissima N. Floy Bracelin 1943-5-23 1178 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1795617  Rosa Barbara Ertter 1993-4-2 11481 Contra Costa along railroad west of Crockett at west edge of Carquinez Straits Comment
  SEINET10543521  Rosa californica Walter H. Lewis, Barbara J. Ertter 2005-2-8 Lewis 15910 Contra Costa Marsh Creek Rd at Power Line Crossover, north foot of Mt. Diablo by Marsh Creek; large colony along creek, open live oak woods. Comment
  UC691162  Rosa californica Mary L. Bowerman 1930-6-26 375 Contra Costa junction of Riggs Canyon Rd and Livermore Road; Mount Diablo Comment
  UC691165  Rosa californica Mary L. Bowerman 1930-8-24 438 Contra Costa by road Mount Diablo, Mitchell Canyon Comment
  CAS-BOT-BC148106  Rosa gymnocarpa Paul F. Covel 1936-4-19 209 Contra Costa Las Trampas Canyon Comment
  OBI70554  Rosa gymnocarpa D. G. Kelch, D. A. Weinstein 2008-4-15 8 .046 Contra Costa Carquinez Strait: S Port Costa along Mckewen rd ( 137 Comment
  UC555497  Rosa gymnocarpa Herbert L. Mason 1924-11-23 1172 Contra Costa Cashion Creek Las Trampas Ridge Comment
  CAS-BOT-BC147152  Rubus laciniatus Walter Knight; Bill Burley 1979-8-18 3445 Contra Costa Browns Island, Point Emmett 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
  SJSU5858  Rubus ursinus C. O. Dudley 1966-5-1 Contra Costa Reliez Valley, Briones Hills, N of Lafayette 152 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
  CAS-BOT-BC421737  Rumex conglomeratus Irja Knight; W. Knight 1977-5-22 s.n. Contra Costa Antioch Dunes. Comment
  CAS-BOT-BC421739  Rumex conglomeratus Walter Knight 1965-9-7 1176 Contra Costa Antioch sand dunes. Comment
  UC692070  Rumex crispus Mary L. Bowerman 1930-10-4 478 Contra Costa Maple Spring Mount Diablo Comment
  CAS-BOT-BC421624  Rumex crispus W. Knight; I. Knight 1977-5-22 s.n. Contra Costa Antioch Dunes. Comment
  UCD101352  Rumex occidentalis P. B. Kennedy 1916-5-11 s.n. Contra Costa Grand View Terrace; Richmond District. Comment
  CDA34275  Rumex pulcher D. G. Kelch 2009-5-24 9 .299 Contra Costa Carquinez Strait; S of Ozol, W/SW of Martinez. Comment
  JEPS107084  Rumex salicifolius var. crassus Barbara Ertter, Brad Olson 1994-5-7 12762 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge. Edge of San Francisco Bay. Comment
  UC1948962  Rumex transitorius William J. Ferlatte, L. Maynard Moe 1970-4-27 1216 Contra Costa San Francisco Bay: Red Rock Island Comment
  POM118953  Ruppia cirrhosa Edward Palmer 2673 Contra Costa Byron Hot Springs. Comment
  UC1818938  Sagina apetala Barbara Ertter, Mary Bowerman et al. 1995-5-7 14056 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, road behind honses traversing north facing slope, mixed forest with much undergrowth. Comment
  UC2028160  Sagina apetala Barbara Ertter 1998-4-4 15948 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, SE of Indian Valley School. Comment
  CAS-BOT-BC445700  Sagittaria latifolia Vincent Jones 1920-8-29 s.n. Contra Costa Orwood Comment
  CDA23459  Salicornia pacifica D. G. Kelch, A. G. Murdock 2003-8-13 3 .098 Contra Costa Carquinez Strait Region; Martinez Marsh. Comment
  UC407392  Salix exigua var. hindsiana Ira L. Wiggins 1930-4-18 4587 Contra Costa levee banks Jersey Isl. Comment
  POM181448  Salix gooddingii I. L. Wiggins 1930-4-18 4591 Contra Costa Jersey Island. Comment
  POM167733  Salix laevigata H. P. Chandler 1901-3-22 859 Contra Costa Pacheco. Comment
  POM181440  Salix laevigata I. L. Wiggins 1930-4-18 4601 Contra Costa Jersey Island. Comment
  UC437380  Salix laevigata J. Burtt Davy 1895-4-13 1005 Contra Costa near Lafayette Comment
  UC650582  Salix laevigata Ira L. Wiggins 1930-4-18 4601 Contra Costa levee banks Jersey Island Comment
  UC691924  Salix laevigata Mary L. Bowerman 1935-6-1 3119 Contra Costa by rd. just below Silver Springs Grapevine Picnic Grounds; Mt. Diablo 853 Comment
  POM300610  Salix lasiolepis Mary L. Bowerman 1933-4-9 1830 Contra Costa Donner Canyon, W fork. Below Twin Peaks. Mt. Diablo. Comment
  POM300612  Salix lasiolepis Mary L. Bowerman 1931-2-8 512 Contra Costa Mt. Diablo. By road. 762 Comment
  UC1196652  Salix lasiolepis Joseph P. Tracy 1932-9-10 10786 Contra Costa Franklin Canyon Northern Coast Ranges (head) 152 Comment
  UC1196658  Salix lasiolepis Joseph P. Tracy 1930-11-27 9260 Contra Costa near Lafayette 304 Comment
  CAS-BOT-BC129552  Salix lasiolepis var. lasiolepis Alice Eastwood 1914-2-24 3730 Contra Costa Antioch Comment
  CAS-BOT-BC129553  Salix lasiolepis var. lasiolepis Walter Knight 1965-3-1 899 Contra Costa Antioch dunes, by water's edge - north side of dunes Comment
  CAS-BOT-BC129554  Salix lasiolepis var. lasiolepis Walter Knight 1965-3-1 s.n. Contra Costa Antioch dunes, by water's edge - Carquinez Straights Comment
  UC1280876  Salix scouleriana H. E. McMinn 1925-4 18 Contra Costa head of San Leandro Creek Comment
  UC1949074  Salsola tragus Barbara Ertter with CNPS 1990-9-16 9644 Contra Costa Bethel Island NE of Brentwood, E end of Gateway Road at W edge of Franks Tract State Recreation Area Comment
  UC691722  Salvia columbariae Mary L. Bowerman 1933-5-2 1942 Contra Costa below Pioneer Camp, Mount Diablo; Mount Diablo 762 Comment
  UC25730  Salvia mellifera H. N. Bolander Apr 1866 6317 Contra Costa Mount Diablo Comment
  UC691477  Salvia mellifera Mary L. Bowerman 1932-2-28 1096 Contra Costa n of junction of Curry Canyon and trail to Cave Point; Mount Diablo 533 Comment
  UC2055610  Salvia spathacea Mary Bowerman 1972-5-6 s. n. Contra Costa Pine Canyon, 1/4 mile up canyon from lowest reservoir. Comment
  UC2029120  Salvia spathacea Barbara Ertter 2000-10-26 17549 Contra Costa west side Mount Diablo, Stage Road in lower Pine Canyon, on top of steep cut on west side of road opposite Castle Rock. Comment
  UCSB4634  Sanicula bipinnata Kamb, Peter; Chisaki, Francia 1950-3-18 Contra Costa Head of Pine Canyon, Mt. Diablo 533 Comment
  JEPS111596  Sanicula bipinnatifida A. G. Murdock 2004-3-19 236 Contra Costa McEwen Road 150 Comment
  JEPS111611  Sanicula bipinnatifida D. G. Kelch 2004-3-5 04 .6 Contra Costa Martinez - Rankin Open Space 56 Comment
  JEPS77017  Sanicula crassicaulis Robert M. Lloyd 1963-3-17 2143 Contra Costa 0.5 mi e of intersection of Grizzly Peak Road and Skyline Drive ( on Skyline (across from 7090 Skyline), Huckleberry Trail); Huckleberry Trail Comment
  RSA0033930  Sanicula crassicaulis Barbara Ertter, Richard K. Brummitt 1998-5-6 16087 Contra Costa Lower Donner Canyon Road on north base of Mount Diablo, ca. 1/2 miles south of Donner cabin site. 304 Comment
  UC1555367  Sanicula crassicaulis Jerry Powell 1988-4-8 1527 Contra Costa west Richmond, Point Molate Point Molate; Richmond, Point Molate Comment
  UC1948950  Sanicula crassicaulis William J. Ferlatte, L. Maynard Moe 1970-4-27 1226 Contra Costa San Francisco Bay: Red Rock Island 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
  JEPS955  Sanicula tuberosa W. L. Jepson 1922-5-23 9663 Contra Costa Mount Diablo Comment
  JEPS111609  Scandix pecten-veneris D. G. Kelch 2003-4-3 03 .349 Contra Costa Cummings Skyway South of Cummings Skyway and Crockett Blvd 134 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
  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
  UC1618278  Schoenoplectus acutus var. occidentalis Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10708 Contra Costa opposite Pittsburg Marina (near w end of island, n of Pittsburg, near confluence of Sacramento and San Joaquin rivers); Browns Island Comment
  POM181474  Schoenoplectus californicus I. L. Wiggins 1930-4-18 4592 Contra Costa Jersey Island. Comment
  CAS-BOT-BC111466  Schoenoplectus californicus Walter Knight 1978-8-27 3203 Contra Costa At reservoir's edge, Contra Loma Regional Park. 30 Comment
  UC2070498  Schoenoplectus californicus Barbara Ertter 2005-8-15 18630 Contra Costa East side of Contra Loma Reservoir south of Antioch, marsh in SE cove. Comment
  JEPS111885  Scirpus acutus D. G. Kelch 2003-8-13 03 .106 Contra Costa Martinez Marsh 0 Comment
  CDA32274  Scirpus maritimus G. F. Hrusa, D. Crowe, R. York 1998-7-17 14724 Contra Costa Sacramento Delta; Colony in bottom of now dry drainage/wash through disturbed grasslands at E end of Dow Chemical property. Site clearly wet earlier in season, but w/out standing water at this time. Comment
  UC692194  Scirpus microcarpus Mary L. Bowerman 1942-10-4 3851 Contra Costa Mount Diablo Mount Diablo (Russelman Park Road) 243 Comment
  PASA1037  Scrophularia californica Annetta Carter 1929-3-31 Contra Costa Near Clayton. Hills north of Mt. Diablo Comment
  CAS-BOT-BC240055  Secale cereale Alice Eastwood 1921-4-18 10313 Contra Costa Antioch Comment
  UC2028307  Sedum radiatum Barbara Ertter, Susan D'Alcamo 1998-6-12 16196 Contra Costa East end Bald Ridge Trail W of Prospectors Gap on north side of Mount Diablo summit. Comment
  UC691354  Senecio aronicoides Mary L. Bowerman 1933-5-21 2146 Contra Costa just below Grape Spring (s from Curry Canyon, Mount Diablo); Mount Diablo Comment
  JEPS37616  Senecio flaccidus var. douglasii W. L. Jepson 1923-10-4 10224 Contra Costa Brannan Island Antioch Comment
  JEPS79323  Senecio flaccidus var. douglasii Edward Lee with Annetta Carter 1935-8-17 1634 Contra Costa Antioch Comment
  JEPS37189  Senecio hydrophilus W. L. Jepson 1923-9-13 10210 Contra Costa n of Cerrito Creek; Berkeley Hills Comment
  UC1561248  Senecio minimus Barbara Ertter 1989-9-30 8862 Contra Costa along streamlet at base of brush-covered slope,just n Tilden Park border; Wildcast Regional Park, East Bay Skyline Natl Recreation Tr Comment
  JEPS111511  Senecio sylvaticus D. G. Kelch 2005-5-13 05 .274 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 66 Comment
  CHSC23334  Senecio vulgaris Willis Ball 1975-2-23 435 Contra Costa Contra Loma Regional Park. In area #1. Ca. 25 yds e of restroom facilities at s end of lake. 30 Comment
  JEPS100173  Senecio vulgaris G. Smick 2003-3-25 GAS 84 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111875  Sequoia sempervirens D. G. Kelch 2004-3-5 04 .2 Contra Costa Martinez - Rankin Open Space Rankin Park, Martinez, Contra Costa County, CA. Sapling waif to 2 ms. In shade of Canyon. Probably seeded from nearby horticultural planting. 27 Comment
  UC1050201  Sequoia sempervirens N. Floy Bracelin 1942-12-13 1712 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC80262  Sequoia sempervirens H. M. Hall 1902-3-4 2700 Contra Costa San Leandro Creek Comment
  UC2062676  Sequoia sempervirens Barbara Ertter with Dan Norris 2000-12-3 Contra Costa Mount Diablo, west fork of Sycamore Canyon. Comment
  CDA33500  Sesbania punicea Slate 2010-7-6 PDR# 1649539 Contra Costa Alamo; 155 Via Bonita 0 Comment
  CHSC99212  Sesuvium verrucosum John Dittes 2006-10-26 1411 Contra Costa San Joaquin Valley (foothills near nw edge); ~2.0 air-mile south of Marsh Creek Reservoir Gauging Station, 1.6 air-mile southwest of intersection of Camino Diablo and Vasco Road; Contra Costa Water District's Los Vaqueros Watershed Mitigation Project Area. 67 Comment
  CHSC116634  Sherardia arvensis Lowell Ahart; Josephine Guardino 2016-4-19 20802 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 Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  UC1614102  Sidalcea malviflora subsp. malviflora Charles M. Belshaw 1935-6-24 784 Contra Costa Bald Peak ca. 1/2 miles east of Grizzly Peak Comment
  CDA31177  Silene gallica D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .219 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  UC1948957  Silene gallica William J. Ferlatte, L. Maynard Moe 1970-4-27 1254 Contra Costa San Francisco Bay: Red Rock Island 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
  UC2028152  Sinapis arvensis Barbara Ertter 1998-4-4 15959 Contra Costa Shell Ridge Open Space northwest of Mount Diablo. Comment
  UC691054  Sisymbrium officinale Mary L. Bowerman 1930-6-3 231 Contra Costa Mount Diablo, West road, 1.9 mi from entrance, (West road = North road) Mount Diablo; , West road Comment
  CHSC24841  Sisyrinchium bellum M. A. Callahan 1976-4-15 17 Contra Costa Top of ridge ca. 145m e of house at 1976 Mohawk Dr. Pleasant Hill. 152 Comment
  RSA0068486  Sisyrinchium bellum Katie Gallagher, Nick Jensen 2014-4-26 188 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  SEINET8887765  Sisyrinchium bellum H. E. Hodge 1956-4-7 21 Contra Costa 2 miles north of Orinda 61 Comment
  UC1606338  Solanum americanum Barbara Ertter, Brad Olson 1991-9-28 10845 Contra Costa between Orinda and El Sobrante (s end of San Pablo Reservoir); San Pablo Reservoir 94 Comment
  CAS-BOT-BC156304  Solanum umbelliferum D. D. Keck 1933-11-2 2619 Contra Costa 1 mi. S.E. of Oakley Comment
  UC1125032  Solanum umbelliferum R. W. Lundh 1932-8-25 142 Contra Costa Mount Diablo 838 Comment
  POM204481  Solanum umbelliferum J. T. Howell 1933-5-14 11291 Contra Costa Hills east of St. Mary's college Comment
  POM215197  Solanum umbelliferum D. D. Keck 1933-11-2 2619 Contra Costa 1 mile SE of Oakley. Comment
  UC63939  Solanum umbelliferum Earle Mulliken 1903-5-10 51 Contra Costa Berkeley Hills Comment
  JEPS75542  Solidago velutina subsp. californica P. F. Yorks 1975-9-6 495 Contra Costa on Hampton Road ca 1.4 km s Bear Creek Road beyond entrance gate to Hampton Road Nature Reserve (n of Briones Reservoir); beyond entrance gat to Hampton Road Nature Reserve, Briones 170 Comment
  UC2028128  Soliva sessilis Barbara Ertter with Richard K. Brummitt 1998-5-6 16080 Contra Costa Base of Mitchell Rock Trail on north base of Mount Diablo. Comment
  CDA29496  Sonchus asper D. G. Kelch, Troy MacGregor 2009-5-1 9 .269 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  CHSC75065  Sonchus oleraceus Roger Thom 1987-5-26 22 Contra Costa 1100 block of Hillside Ave. Walnut Creek. Roadside. 36 Comment
  UC691439  Sonchus oleraceus Mary L. Bowerman 1932-4-27 1369 Contra Costa w facing bank of ridge w Riggs Canyon (Oyster Ridge, Mount Diablo); Mount Diablo, s face Oyster Ridge Comment
  UC691790  Sonchus oleraceus Mary L. Bowerman 1935-4-12 2813 Contra Costa North Road Mount Diablo (Mount Diablo) 198 Comment
  CAS-BOT-BC236611  Spartina foliosa John Thomas Howell 1932-10-8 10793 Contra Costa Mouth of Rodeo Creek Comment
  CDA42411  Spartium junceum D. G. Kelch, Vince Guise 2012-7-26 12 .237 Contra Costa Wildcat Canyon Park, Alvarado Unit. Comment
  UC1795742  Spergularia bocconi Barbara Ertter, Mary Bowerman et al. 1995-5-7 14027 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, along road thru annual grassland with scattered blue oak south of Marsh Creek Road summit. 304 Comment
  RSA0097921  Spergularia bocconi Barbara Ertter, Mary L. Bowerman 1995-5-7 14027 Contra Costa NE side of Mount Diablo SE of Clayton, along road south of Marsh Creek road summit. 305 Comment
  JEPS111787  Spergularia macrotheca var. macrotheca D. G. Kelch 2005-3-24 05 .48 Contra Costa Point Pinole Pt. Pinole near wharf 2 Comment
  CDA15233  Spergularia marina G. F. Hrusa, D. Crowe 1998-5-8 14362 Contra Costa Sacramento Delta; \ E end of Dow Chemical property at Pittsburg. Comment
  JEPS111531  Spergularia marina D. G. Kelch 2005-5-5 05 .215 Contra Costa Point Pinole - Giant Marsh 3 Comment
  UC2070545  Spergularia marina Barbara Ertter 2003-3-28 18123 Contra Costa Round Valley Regional Preserve, north end of Round Valley along Murphy's Meadow trail. Comment
  UC1618137  Spergularia rubra Barbara Ertter with Chris Thayer and Dianne Lake 1996-5-16 14681 Contra Costa w of Richmond (Point Molate Naval Fuel Depot overlooking San Francisco Bay, around Tank 14); San Francisco Bay, Point Molate Naval Fuel Depot Comment
  RSA0028903  Spergularia rubra Barbara Ertter, Dan Norris 1999-11-14 16852 Contra Costa Black Diamond Mines Regional Preserve, south of parking area for Somersville townsite. Comment
  JEPS111784  Spergularia villosa D. G. Kelch 2004-4-26 04 .141 Contra Costa Point Pinole 1 Comment
  UC1618132  Spergularia villosa Barbara Ertter, Brad Olson 1994-5-7 12747 Contra Costa s end of Point Molate Beach Park w of Richmond (n of bridge to San Rafael, San Francisco Bay, along old railroad grade); San Francisco Bay, Point Molate Beach Park Comment
  UC1948952  Spergularia villosa William J. Ferlatte, L. Maynard Moe 1970-4-27 1258 Contra Costa San Francisco Bay: Red Rock Island Comment
  CDA22505  Stachys ajugoides var. rigida D. G. Kelch, D. A. Weinstein 2008-4-25 8 .077 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
Read comments
Jan 7 2016
  JEPS112462  Stachys ajugoides var. rigida D. G. Kelch 2004-4-11 04 .57 Contra Costa Crockett - 5th St. Prairie 85 Comment
  UC884274  Stachys ajugoides var. rigida Lewis S. Rose 1935-5-16 35172 Contra Costa Mt. Diablo Comment
  RSA762305  Stachys ajugoides var. rigida William J. Ferlatte, L. M. Moe 1970-4-27 1224 Contra Costa San Francisco Bay, Red Rock Island. Comment
  UC25936  Stachys ajugoides var. rigida W. L. Jepson Contra Costa Fish Ranch Comment
  CDA35678  Stachys bullata Deviney 2011-12-9 PDR# 1641237 Contra Costa Orinda; Tilden Botanical Garden/Nursery, Wildcat Canyon Road. 0 Comment
  UC2055617  Stachys pycnantha Joseph Andorfer Ewan 1933-10-15 8035 Contra Costa SW slope Mt. Diablo. 1066 Comment
  UC2055618  Stachys pycnantha Joseph Andorfer Ewan 1933-10-15 8035 Contra Costa SW slope Mt. Diablo. 1066 Comment
  RSA289947  Stachys rigida subsp. quercetorum Mary L. Bowerman 1932-5-6 1430 Contra Costa Mitchell Canyon: at end of road; Mount Diablo. 252 Comment
  JEPS68979  Stellaria nitens Edward Lee 1935-3-29 1313 Contra Costa Nortonville Kirker Creek (s watershed of Kirker Creek) Comment
  CAS-BOT-BC393980  Stellaria nitens John Thomas Howell 1927-3-6 2284 Contra Costa summit of Shell Ridge 243 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
  SEINET11800583  Stephanomeria virgata L. S. Rose 1938-1 38308 Contra Costa Marsh Creek, 6 mi E of Clayton 152 Comment
  SEINET7883496 Image available Stephanomeria virgata Lewis S. Rose 1938-1 38308 Contra Costa Marsh Creek, 6 mi. e. of Clayton 152 Comment
  UC2070661  Stipa lepida Barbara Ertter 2002-5-11 17847 a Contra Costa Southwest base of Mount Diablo, lower end of Summit Trail in Dan Cook Canyon ca. half mile from South Gate Road. Comment
  UC2070619  Stipa miliacea var. miliacea Barbara Ertter 2002-8-24 18016 Contra Costa NE base of Mount Diablo, connector trail paralleling Morgan Territory Road along edge of private property (Mt. Diablo Mine) Comment
  UC2028403  Stipa pulchra Barbara Ertter with Christopher Baysdorfer 1998-5-10 16121 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, quarry area on west side Comment
  UC2070615  Stipa pulchra Barbara Ertter 2002-5-16 17851 Contra Costa Richmond Field Station (UC-Berkeley). Comment
  UC1492706  Streptanthus albidus subsp. peramoenus Freed W. Hoffman 1949-4-16 2762 Contra Costa 2 mi inside North Gate of Mt. Diablo State Park; Mt. Diablo 228 Comment
  UC592149  Streptanthus albidus subsp. peramoenus H. L. Mason 1928-4-26 4389 Contra Costa hillsides Berkeley hills Comment
  UC691125  Streptanthus glandulosus subsp. glandulosus Mary L. Bowerman 1935-5-8 2968 Contra Costa North Road 2 mi from North Gate (just w of chaparral, se exposure); Mount Diablo 237 Comment
  CAS-BOT-BC87332  Streptanthus hispidus John Thomas Howell 1941-4-6 16178 Contra Costa Ridge west of Deer Flat, Mount Diablo. Comment
  CAS-BOT-BC87342  Streptanthus hispidus Alice Eastwood 1921-6-11 10603 Contra Costa Mount Diablo near summit. Comment
  UC188151  Streptanthus hispidus J. W. Congdon 1896-5-3 Contra Costa summit Mt. Diablo Comment
  UC402744  Streptanthus hispidus E. W. Hicks 1917-3-25 114 Contra Costa s-facing slope of w shoulder Mt. Diablo 762 Comment
  UC630664  Streptanthus hispidus John L. Morrison and Lincoln Constance 1938-5-5 3027 Contra Costa along Deer Flat trail ca 1/8 mi n Juniper Camp (steep n-facing talus slope); Mt. Diablo Comment
  RSA755534  Stuckenia filiformis subsp. filiformis Barbara Ertter, Brad Olson, Dianne Lake, Lynne Hosley, Amy Hiss 1991-8-18 10715 Contra Costa Browns Island N of Pittsburg near confluence of Sacramento and San Joaquin rivers opposite Pittsburg Marina. Comment
  RSA0026147  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
  CAS-BOT-BC375966  Stylocline gnaphaloides Brandegee No date on label s.n. Contra Costa Antioch Comment
  CAS-BOT-BC422907  Stylomecon heterophylla Paul F. Covel 1936-5-17 156 Contra Costa Mt Diablo, on trail summit-north peak. Comment
  CAS-BOT-BC422920  Stylomecon heterophylla James McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  JEPS75654  Stylomecon heterophylla W. L. Jepson 1925-4-26 10683 Contra Costa Black Hills Mt. Diablo; , Black Hills 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
  CAS-BOT-BC422909  Stylomecon heterophylla Mary L. Bowerman 1932-5-6 1410 Contra Costa Mount Diablo. Mitchell Canyon: West bank by floor of canyon. 243 Comment
  UC117985  Stylomecon heterophylla Michener and Bioletti 1892-4-10 841 a Contra Costa Byron [Alcalde] pencilled in Byron; Byron [Alcalde] pencilled in Comment
  UC72722  Stylomecon heterophylla Miss Carlotta Case July 1904 Contra Costa Muir Station; beside track Comment
  UC1238003  Suaeda moquinii John H. Weiler 1961-4-9 6173 Contra Costa 3 mi s Byron (e side of road) Comment
  CDA9506  Suaeda nigra D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .233 Contra Costa Byron Airport. Comment
  UCR64448  Symphoricarpos rivularis E. E. Stanford 1930-5-24 1509 Contra Costa Marsh Creek Canyon Comment
  JEPS111656  Symphyotrichum chilense Dean G. Kelch and Andrew G. Murdock 2003-9-12 AGM 204 Contra Costa Selby, west of Crockett. Comment
  CAS-BOT-BC98039  Symphyotrichum lentum L. R. Abrams 1917-9-24 6860 Contra Costa Near Concord Comment
  JEPS125628  Symphyotrichum lentum Daniel Slakey with CNPS Volunteers 2015-9-12 225 Contra Costa Browns Island, northern part of Crooked Slough. 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
  UC912542  Symphyotrichum subulatum Herbert L. Mason 1929-9-21 5439 Contra Costa 1 mi from junction of Borden Highway and road to Antioch Comment
  CAS-BOT-BC98330  Symphyotrichum subulatum var. parviflorum Walter Knight 1978-7-1 3107 Contra Costa Martinez waterfront, near mouth of Alhambra Creek Comment
  CAS-BOT-BC376774  Tanacetum parthenium John Thomas Howell 1942-6-28 17006 Contra Costa Oakland Hills near Redwood Peak Comment
  UC1555368  Taraxia ovata Jerry Powell 1988-2-18 1525 Contra Costa Point Molate west Richmond Comment
  UC764060  Taraxia ovata R. F. Hoover 1938-2-21 2755 Contra Costa Point Richmond Comment
  UCD128119  Tauschia hartwegii P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  JEPS22095  Tetragonia tetragonoides G. Thomas Robbins 1958-7-19 3906 Contra Costa about 3/4 mi s of Point San Pablo (Point Orient, Potrero San Pablo, Richmond); San Francisco Bay, Point Orient, Potrero San Pablo Comment
  UC20473  Tetrapteron graciliflorum W. H. Brewer 1109 Contra Costa n Kirker Pass Comment
  NY185781  Thelypodium rigidum E. L. Greene 1887-4-17 s.n. Contra Costa Comment
  CAS-BOT-BC88251  Thysanocarpus curvipes John Thomas Howell 1933-5-14 11271 Contra Costa Hills east of Saint Mary's College. Comment
  CAS-BOT-BC88259  Thysanocarpus curvipes Robert F. Hoover 1935-3-10 310 Contra Costa Antioch sand dunes. Comment
  UC691061  Thysanocarpus curvipes Mary L. Bowerman 1933-5-8 2032 Contra Costa flat n of Rock City camp ground Mount Diablo; , n of Rock City camp ground Comment
  CAS-BOT-BC88246  Thysanocarpus curvipes Alice Eastwood 1914-2-24 3737 Contra Costa Anticoch. Comment
  UC11038  Thysanocarpus curvipes subsp. curvipes W. H. Brewer 1862-5-12 1083 Contra Costa Mt. Diablo Comment
  SEINET3166335  Thysanocarpus laciniatus P. J. Alexander, C. D. Bailey 2009-3-30 968 Contra Costa Mount Diablo State Park, 0.3 miles east of the summit of Mt. Diablo on the trail to North Peak, 8.7 miles ESE of central Walnut Creek. 1006 Comment
  UC691139  Thysanocarpus laciniatus Mary L. Bowerman 1932-3-27 1138 Contra Costa Mount Diablo , below Mitchell Rock (below Mitchell Rock) Comment
  JEPS100127  Torilis nodosa G. Smick 2003-5-8 GAS 186 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site 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
  UC1619980  Tragopogon porrifolius Barbara Ertter 1991-5-12 9812 Contra Costa s.w. corner El Cerrito (along old R.R. right-of-way between bay & salicornia marsh, Point Isabel Regional Shoreline, on San Francisco Bay); San Francisco Bay, Point Isabel Regional Shoreline Comment
  JEPS63121  Trichostema lanceolatum W. L. Jepson 1895-9-14 14880 Contra Costa Lafayette Comment
  UC615564  Trichostema lanceolatum Beryl O. Schreiber 1933-10-5 939 Contra Costa road to Mount Diablo Comment
  UC1614107  Trifolium Charles M. Belshaw 1935-6-24 790 Contra Costa ca. 1/2 mi. e. Grizzly Peak (Bald Peak); Bald Peak Comment
  CDA33823  Trifolium albopurpureum D. G. Kelch 2010-5-15 10 .121 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 Comment
  UC575674  Trifolium albopurpureum var. albopurpureum Lewis S. Rose 1935-5-16 35174 Contra Costa Mt. Diablo Comment
  JEPS65769  Trifolium barbigerum W. L. Jepson 1917-4-14 6866 Contra Costa Oakland Hills, near Redwood Peak Comment
Read comments
Dec 17 2008
  SBBG29986  Trifolium bifidum var. decipiens J. T. Howell 1933-5-14 11264 Contra Costa hills E of St Mary's College 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
  UC16436  Trifolium bifidum var. decipiens J. Burtt Davy 1900-3-24 6517 Contra Costa Stege Comment
  POM300697  Trifolium bifidum var. decipiens Mary L. Bowerman 681 Contra Costa South of Russelman Parak. 381 Comment
  RSA0033775  Trifolium campestre Barbara Ertter, Richard K. Brummitt 1998-5-6 16095 Contra Costa Donner Canyon Trail near Regency Drive trailhead, north base of Mount Diablo. 182 Comment
  UC2028114  Trifolium campestre Barbara Ertter with Richard K. Brummitt 1998-5-6 16095 Contra Costa Donner Canyon Trail near Regency Drive trailhead, north base of Mount Diablo. Comment
  CDA23626  Trifolium ciliolatum D. G. Kelch 2008-4-12 8 .036 Contra Costa Mt Diablo. Mitchell Canyon. Along road looping north of main Mitchell Canyon Rd. Comment
  CDA25739  Trifolium ciliolatum D. G. Kelch 2008-4-12 8 .037 Contra Costa Mt Diablo. Mitchell Canyon. Along road looping north of main Mitchell Canyon Rd. Comment
  CDA27926  Trifolium ciliolatum D. G. Kelch, A. G. Murdock 2003-4-3 3 .35 Contra Costa Carquinez Strait Region; Cummings Skyway. South of Cummings Skyway and Crockett Boulevard. Comment
  UC16529  Trifolium depauperatum var. amplectens C. Michener 1891-4-23 Contra Costa Point Isabel Comment
  UCSC011138  Trifolium depauperatum var. laciniatum R. Morgan 2015-4-11 6739 Contra Costa Byron Comment
  SEINET7096815  Trifolium depauperatum var. truncatum A. G. Vestal 1985-4-1 s.n. 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
  UC1543246  Trifolium depauperatum var. truncatum Donald G. Nelson 1937-3-30 476 Contra Costa a few mi s Byron (on rr tracks paralleling the hwy, on rd ro Tracy) Comment
  UC1607665  Trifolium depauperatum var. truncatum Barbara Ertter with Michelle Seidl 1992-3-14 10921 Contra Costa E of Mount Diablo; Morgan Territory Regional Preserve Comment
  UC1861833  Trifolium depauperatum var. truncatum Barbara Ertter, Chris Thayer 1995-4-25 13998 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Black Hawk Ridge Rd. on north side Black Hawk Ridge. 548 Comment
  UC631080  Trifolium depauperatum var. truncatum P. B. Kennedy 1928-4-19 10045 Contra Costa Byron Hot Springs Comment
  UCD84949  Trifolium depauperatum var. truncatum Chuck Hughes 2010-3-29 221 Contra Costa About 0.4 mile southeast of Vasco Road. 124 Comment
  POM127040  Trifolium depauperatum var. truncatum Martinez 1889-4-15 s.n. Contra Costa [Unspecified] Comment
  RSA0027920  Trifolium depauperatum var. truncatum Barbara Ertter 1998-4-4 15957 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, summit of northwestern-most ridge. Comment
  UC2028081  Trifolium depauperatum var. truncatum Barbara Ertter, Tony Morosco 1998-4-12 15988 Contra Costa Base of Mount Olympia on north side of Mount Diablo, open flat below quarry NE of Olympia Trail. Comment
  POM18457  Trifolium dichotomum C. F. Baker 1903-4-27 2797 Contra Costa Byron. Comment
  JEPS100104  Trifolium dubium G. Smick GAS 108 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS65882  Trifolium fucatum W. L. Jepson 1923-4-22 9857 Contra Costa Mt. Diablo Comment
  UC16545  Trifolium fucatum J. Burtt Davy 1895-4-7 959 Contra Costa Antioch Comment
  UC924217  Trifolium fucatum H. S. Reed 1940-4-30 356 Contra Costa Marsh Creek northeast slopes of Mount Diablo Comment
  UC419042  Trifolium fucatum H. E. and S. T. Parks 1930-4-1 542 Contra Costa along hwy (in ditches); San Ramone Comment
  UC631617  Trifolium fucatum P. B. Kennedy 1928-4-28 10094 Contra Costa 2 mi from Tunnel (on hwy) Comment
  JEPS100103  Trifolium glomeratum G. Smick 2003-5-8 GAS 177 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  LA205246  Trifolium gracilentum John Thomas Howell; 1933-5-14 11264 Contra Costa E of St. Mary's College Comment
  UC692678  Trifolium gracilentum Mary L. Bowerman 1935-4-26 2908 Contra Costa w Indian Ceremonial Springs; Mount Diablo 1005 Comment
  JEPS65906  Trifolium gracilentum var. gracilentum W. L. Jepson 1925-4-26 10688 Contra Costa Black Hills Mt. Diablo Comment
  JEPS21821  Trifolium hirtum A. M. Craig 1958-5-19 Contra Costa e West Contra Costa Junior College (hills); San Pablo 30 Comment
  OBI12671  Trifolium macraei G. Thomas Robbins 1959-5-17 4017 Contra Costa Just NE of the jctn of Park Blvd, Skyline Blvd, and Manzaitas Dr, at the summit of Oakland Hills, Alameda-Contra Costa County boundary 351 Comment
  JEPS100107  Trifolium microdon G. Smick 2003-4-22 GAS 144 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS65989  Trifolium microdon W. L. Jepson May 23 1891-May 24 1891 13661 Contra Costa Mt. Diablo 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
  UC764715  Trifolium microdon R. F. Hoover 1939-4-25 4066 Contra Costa Richmond hills Comment
  UC16656  Trifolium monanthum var. monanthum Maclean 1875-7-5 Contra Costa Mt. Diablo Comment
Read comments
Feb 14 2013
  UC165547  Trifolium oliganthum Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  UC866918  Trifolium oliganthum Lewis S. Rose 1940-4-30 40252 Contra Costa 6 mi e Clayton (Marsh Creek) 60 Comment
  UC2027837  Trifolium oliganthum Barbara Ertter with Dan Norris 2001-4-15 17609 Contra Costa West side Mount Diablo, head of W-facing drainage west of China Wall rock formation (off trail between Hanging Valley Trail and China Wall Road). Comment
  UC2028158  Trifolium oliganthum Barbara Ertter 1998-4-4 15953 Contra Costa Shell Ridge Open Space northwest of Mount Diablo. Comment
  UCD32493  Trifolium olivaceum Beecher Crampton 1950-4-22 534 Contra Costa Contra Costa County, along State Highway 4, in Concord Valley. 30 Comment
  PASA252  Trifolium tridentatum Annetta Carter 1929-3-31 Contra Costa Hills north of Mt. Diablo, near Clayton Comment
  CAS-BOT-BC26494  Trifolium triflorum M. K. Curran 1883-1-1 s.n. Contra Costa Near Mt. Diablo Comment
  UC16787  Trifolium variegatum Ivar Tidestrom 1893-4-15 Contra Costa Sheep Island Comment
  UC16795  Trifolium variegatum var. melananthum W. L. Jepson 1891-5-24 Contra Costa Mt. Diablo Comment
  JEPS127672  Trifolium variegatum var. variegatum Barbara Ertter with David Gowen and Michael Park 2017-5-2 22804 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  JEPS70759  Trifolium willdenovii L. R. Heckard 1971-4-22 2493 Contra Costa e Pinole (rr grade near US Hwy 80 crossing) Comment
  UC55884  Trifolium willdenovii H. M. Hall 1901-3-17 1656 Contra Costa Point Richmond Canyon Comment
  UC579846  Trifolium willdenovii Annetta Carter 1936-4-19 1109 Contra Costa e side of island Red Rock Comment
  UC692240  Trifolium willdenovii Mary L. Bowerman 1935-4-12 2816 Contra Costa 2 mi from entrance = North Gate (w rd = n rd); Mount Diablo 259 Comment
  UC692649  Trifolium willdenovii Mary L. Bowerman 1931-5-7 813 Contra Costa near saddle (ne slope, Meridian Peak); Mount Diablo 914 Comment
  UCD109847  Trifolium willdenovii W. L. Jepson 1925-4-26 10691 Contra Costa Mt. Diablo. Comment
  POM18879  Trifolium willdenovii H. P. Chandler 1901-3-22 841 Contra Costa Concord. Comment
  POM300698  Trifolium willdenovii Mary L. Bowerman 1933-5-11 2083 Contra Costa Inner Black Hills: Grassy ridge, west end. Comment
  RSA517735  Trifolium willdenovii Donald G. Nelson 1937-3-30 474 Contra Costa Railroad tracks paralleling the highway south of Byron on road to Tracy Comment
  UC1819061  Trifolium willdenovii Barbara Ertter, Gary Schoolcraft 1996-4-7 14570 Contra Costa Point San Pablo in west Richmond, crest of road to yacht harbor, coastal grassland along ridge, scraped roadbed to tower. Comment
  UC2028157  Trifolium willdenovii Barbara Ertter 1998-4-4 15954 Contra Costa Shell Ridge Open Space northwest of Mount Diablo. Comment
  JEPS127670  Triglochin scilloides Barbara Ertter with David Gowen and Michael Park 2017-5-2 22800 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  UC508  Triglochin striata Jos. Burtt Davy 1900-6-7 6676 Contra Costa Martinez Comment
  JEPS78611  Triglochin striata Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3299 Contra Costa Browns Isl., Botany Cove Comment
  UC692009  Trillium chloropetalum Mary L. Bowerman 1931-3-21 592 Contra Costa Mt. Diablo, Sycamore Canyon 350 Comment
  JEPS111766  Triodanis biflora Christopher Thayer 1995-6-5 Contra Costa Pinole Peak 304 Comment
  JEPS23787  Triphysaria eriantha subsp. eriantha Rimo Bacigalupi with Paul C. Hutchison and John Weiler 1959-3-19 6970 Contra Costa junction of Holey Road and Byron Road about 2.9 mi se Byron 4 Comment
  UC103158  Triphysaria eriantha subsp. eriantha C. F. Baker 1903-4-27 2792 Contra Costa Byron Comment
  UC407378  Triphysaria eriantha subsp. eriantha Ira L. Wiggins 1930-4-17 4571 Contra Costa 1/4 mi s Byron Comment
  UCD93500  Trisetum canescens Beecher Crampton 1956-5-14 3423 Contra Costa 2 miles west of Martinez, on road to Crockett. 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
  JEPS58064  Triteleia laxa W. L. Jepson 1919-6-8 8332 Contra Costa Mt. Diablo Comment
  UC765433  Triteleia laxa R. F. Hoover 1939-4-25 4063 Contra Costa Richmond hills Comment
  CAS-BOT-BC526331  Triteleia laxa James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  SEINET11268160  Triteleia laxa Barbara Ertter 1998-4-4 15970 Contra Costa Northwest of Mount Diablo, Fossil Hill, Middle of NE-facing slope.; 0 122 Comment
  UCSB829  Triteleia laxa Hand, B. 1960-4-10 Contra Costa 1.8 miles from south gate on Mt. Diablo road, Mt. Diablo Comment
  UCR81450  Tropidocarpum capparideum Edward L. Greene 1888-3-25 s.n. Contra Costa Byron Springs 107 Comment
  UC136962  Tropidocarpum gracile K. Brandegee April, 1889 Contra Costa Antioch Comment
  UC64343  Tropidocarpum gracile H. M. Hall 1901-4-5 1742 Contra Costa Pine Canyon Region of San Francisco Bay, Mt. Diablo Comment
  UC857585  Tropidocarpum gracile Lewis S. Rose 1940-4-30 40249 Contra Costa open fields five mi e Clayton; Marsh Creek 60 Comment
  UC857586  Tropidocarpum gracile Lewis S. Rose 1940-4-30 40249 A Contra Costa 5 mi e Clayton (fields); Marsh Creek 60 Comment
  CAS-BOT-BC80208  Tsuga mertensiana subsp. grandicona Phil Blumberg; M. Polland; R. Barnet; J. MacCarthy 1962-8-7 s.n. Contra Costa Bryan Meadows Comment
  CDA1418  Typha angustifolia D. G. Kelch, Andrew G. Murdock 2003-8-13 3 .105 Contra Costa Carquinez Strait Region; Martinez Marsh. Comment
  JEPS111916  Ulmus minor Dean G. Kelch and Andrew G. Murdock 2004-4-26 DGK 04 .131 Contra Costa Point Pinole. Comment
  UC2061510  Ulmus minor Dean G. Kelch 2016-4-30 16 .103 Contra Costa Carquinez Strait: Selby, west of Crockett. On west side of canyon near old dwelling foundation. Comment
  UC2070596  Ulmus minor Barbara Ertter with Chris Thayer 2002-4-13 17826 Contra Costa North side of Mount Diablo, on north face of Mount Olympia. Comment
  CAS-BOT-BC91092  Umbellularia californica Annetta Carter 1937-3-20 1224 Contra Costa Lake Orinda Road, two miles northwest of Orinda. 121 Comment
  CDA24511  Umbellularia californica D. G. Kelch, A. G. Murdock 2003-2-7 03 .037.B Contra Costa Carquinez Strait Region; Franklin Canyon. Comment
  JEPS112485  Umbellularia californica D. G. Kelch 2004-3-5 04 .13 Contra Costa Sky Ranch Dutra Fire Road. Franklin Canyon 90 Comment
  UC1073383  Umbellularia californica George B. Rossbach 1955-2-20 277 Contra Costa ne of Oakland Comment
  UC1126325  Umbellularia californica H. S. Yates 1936-3-14 5362 Contra Costa Marsh Creek 381 Comment
  CDA37275  Umbellularia californica D. G. Kelch 2009-12-21 9 .712 Contra Costa Vicinity of Richmond; canyon northeast of Alvarado Park. 0 Comment
  JEPS100166  Uropappus lindleyi G. Smick 2003-4-8 GAS 129 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691466  Uropappus lindleyi Mary L. Bowerman 1932-4-27 1396 Contra Costa canyon w Riggs Canyon (s face Oyster Ridge, Mount Diablo); Mount Diablo, s face Oyster Ridge 335 Comment
  CAS-BOT-BC381824  Uropappus lindleyi Paul F. Covel 1938-5-8 9 Contra Costa Mt. Diablo - So. slope Comment
  UCR263554  Urospermum picroides Barbara Ertter 1990-6-18 9133 Contra Costa San Francisco Bay Region, Tilden Regional Park, along Nimitz hiking/bicycle trail near Inspiration Point 206 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
  UC635677  Utricularia gibba H. L. Mason 1929-9-21 5441 Contra Costa 1 mi. n. from junction of Borden Hwy. and rd. to Antioch Comment
  JEPS121073  Verbena lasiostachys D. G. Kelch 2006-8-6 06 .363 Contra Costa Rodeo Creek, in Rodeo. Comment
  CDA9278  Verbena scabra D. G. Kelch 2002-7-15 2 .006 Contra Costa CA Delta; Old San Joaquin River channel, E of Brentwood. San Joaquin County border. 0 Comment
  JEPS25389  Veronica peregrina subsp. xalapensis Rimo Bacigalupi with G. T. Robbins and Francia Chisaki 1959-4-14 7002 Contra Costa 2 1/2 mi se of Antioch (just e of Antioch Airport, along Lone Tree Way) 56 Comment
  JEPS99479  Veronica persica Mary Bowerman 1978-4-10 Contra Costa Mount Diablo. Morgan Territory Rd. at Oak Hill Lane. Comment
  JEPS12699  Viburnum ellipticum Mary L. Bowerman 1933-5-21 2162 Contra Costa s from Curry Canyon (Sycamore Canyon, ridge between two main forks w side); Mount Diablo, Sycamore Canyon 365 Comment
  UC691563  Viburnum ellipticum Mary L. Bowerman 1933-5-19 2143 Contra Costa Sulphur Spring Canyon, e fork Mount Diablo 457 Comment
  UC1789196  Viburnum rigidum Barbara Ertter 2001-10-29 17810 Contra Costa Tilden Regional Park, Selby Trail and Wildcat Gorge upstream from Lake Anza, understory of mixed forest. Occasional lax shrub to 2--3 m tall. Comment
  UCD32375  Vicia Beecher Crampton 1950-4-16 516 Contra Costa Contra Costa County, road from San Pablo to Giant, along RR. property. 22 Comment
  UCD108768  Vicia americana Helen K. Sharsmith 1962-4-17 4936 Contra Costa Vicinity of Grizzly Peak, Berkeley Hills. 426 Comment
  UC16958  Vicia americana var. americana unknown 1862-4-18 1016 Contra Costa Mt. Diablo Comment
  UCD35903  Vicia americana var. americana Beecher Crampton 1966-4-26 7667 a Contra Costa ca. 2.5 miles west of Martinez on the road to Crockett. Comment
  SD107683  Vicia villosa Walter Knight 1980-4-17 3718 Contra Costa Tilden Regional Park, intersection of Central Park Drive & Canon Drive on roadbank Comment
  UCR198227  Vicia villosa Dean Kelch, Barbara Ertter 2007-2-28 07 .078 Contra Costa Tormey Headlands, between Crockett and Rodeo 76 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
  UC2028101  Vinca major Barbara Ertter, Mary Bowerman 1996-11-1 15396 Contra Costa North base of Mount Diablo, downstream from Mitchell Canyon parking lot. Comment
  JEPS50464  Viola pedunculata W. L. Jepson 1917-4-14 6861 Contra Costa summits near Redwood Peak (Oakland Hills); Oakland Hills Comment
  UC2028211  Viola pedunculata Barbara Ertter, Tony Morosco 1998-4-12 15986 Contra Costa Base of Mount Olympia on north side of Mount Diablo, meadow on south side of lower end of Olympia Trail. Comment
  JEPS50410  Viola purpurea subsp. quercetorum Mary Bowerman 1933-5-12 Contra Costa Mount Diablo Comment
  CAS-BOT-BC203041  Vitis californica A. D. E. Elmer 1903-7-1 4955 Contra Costa Mount Diablo Comment
  HSC47194