Search Results — 2000 specimen records retrieved (1348 records with coordinates)
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Results for search: County=SAN MATEO; Source=All;   

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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/consortium/).
 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
  NY679470  Abronia umbellata L. S. Rose 1935-10-12 35654 San Mateo Salada. 3 Comment
  CAS-BOT-BC451131  Acaena pinnatifida var. californica John H. Thomas 1961-5-12 9328 San Mateo San Bruno Mountain in northern part of county. Northern Coastal Scrub of Munz and Keck. 396 Comment
  UC137274  Acaena pinnatifida var. californica C. F. Baker 1902-5-1 688 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC451122  Acaena pinnatifida var. californica W. R. Dudley 1901-5-11 s.n. San Mateo Near Millbrae; Santa Cruz Peninsula Comment
  UC1397619  Acanthomintha duttonii H. Dutton and Miss H. Walker May 26 1915-May 29 1915 321 San Mateo near Menlo Golf Club Comment
  POM63305  Acanthomintha obovata subsp. duttonii A. D. E. Elmer 1903-05 4538 San Mateo Crystal Springs Lake. Comment
  RSA18365  Acanthomintha obovata subsp. duttonii Carl B. Wolf 1929-5-24 3723 San Mateo upper Emeral Lake, Back of Redwood City Comment
  CAS-BOT-BC333208  Acer macrophyllum Elizabeth McClintock; Paul Reeberg 1988-4-6 s.n. San Mateo San Bruno Mountains. Above Margaret Ave., Brisbane Comment
  CAS-BOT-BC333209  Acer macrophyllum R. Hoffough 1988-4-6 800 San Mateo La Honda grade Comment
  CAS-BOT-BC333292  Acer macrophyllum L. R. Abrams no date on label s.n. San Mateo La HOnda Comment
  RSA131008  Acer macrophyllum Josephine Randall 1908-3-22 s.n. San Mateo Corte de Madera Canyon near Alpine Road Comment
  SEINET4068107 Image available Acer macrophyllum D. Demaree 1932-1 8984 San Mateo Near Isov. Rolph Estates. P.O. Palo Alto. Comment
  CAS-BOT-BC21551  Achillea millefolium Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain above Hillside Blvd., South San Francisco Comment
  CAS-BOT-BC21600  Achillea millefolium Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  JROH444  Achillea millefolium John H. Thomas 1975-6-5 17943 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack 154 Comment
  UCR254762  Achillea millefolium Peter Rubtzoff 1977-6-21 9065 San Mateo San Francisco Bay Region, San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  RSA18454  Achillea millefolium var. arenicola Carl B. Wolf 1927-6-29 s.n. San Mateo Along coast south of Pebble Beach near Pescadero. Comment
  RSA15315  Achillea millefolium var. californica Carl B. Wolf 1927-4-3 s.n. San Mateo Los Troncos Creek, 2 miles back of Stanford University. Comment
  JROH456  Achyrachaena mollis John H. Thomas 1955-5-6 4981 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH457  Achyrachaena mollis John H. Thomas 1955-5-6 4981 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH459  Achyrachaena mollis John H. Thomas 1963-5-12 10079 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5888  Achyrachaena mollis Ruth Porter 1998-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2056  Acmispon americanus var. americanus John H. Thomas 1971-5-30 15962 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU7494  Acmispon americanus var. americanus L. S. Rose 1964-9-5 64071 San Mateo Emerald L W of Redwood City 243 Comment
  SEINET957844  Acmispon brachycarpus A. D. E. Elmer 1903-1 3698 San Mateo Leland Stanford universoty. Belmont. Comment
  JROH5954  Acmispon parviflorus John H. Thomas 1967-5-10 12842 San Mateo Comment
  JROH2086  Acmispon wrangelianus John H. Thomas 1956-4-7 5614 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2089  Acmispon wrangelianus Duncan M. Porter 1960-5-5 676 A San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of N-facing slope above Webb Ranch. Quadrat H-5 Comment
  JROH2103  Acmispon wrangelianus John Hunter Thomas 1980-4-10 19874 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC391678  Actaea rubra Margaret A. Barry 1937-7-17 197 San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC391679  Actaea rubra J. H. Thomas 1963-5-6 10062 San Mateo Summit of La Honda Road at Skyline Blvd. 609 Comment
  RSA18493  Actaea rubra subsp. arguta Carl B. Wolf 1927-7-14 627 San Mateo Summit of La Honda Grade Comment
  RSA523414  Actaea rubra subsp. arguta G. H. True 1936-4-5 390 San Mateo Canyon between San Gregorio and Pescadero 152 Comment
  POM56205  Adenocaulon bicolor A. D. E. Elmer 1903-06 s.n. San Mateo Pescadero Creek Comment
  CAS-BOT-BC139955  Adenostoma fasciculatum John H. Thomas 1971-5-2 15864 San Mateo Near intersection of Canada and Edgewater {Edgewood] roads, about 4 miles SW of center of Redwood City 304 Comment
  CAS-BOT-BC139957  Adenostoma fasciculatum L. S. Rose 1941-6-12 41270 San Mateo Emerald Lake, hills west of Redwood City 120 Comment
  CAS-BOT-BC139961  Adenostoma fasciculatum L. S. Rose 1941-6-12 41270 San Mateo Emerald Lake, hills west of Redwood City 120 Comment
  JROH3589  Adenostoma fasciculatum var. fasciculatum John H. Thomas 1976-5-26 18150 San Mateo Jasper Ridge Biological Preserve, Stanford University 146 Comment
  JROH85  Adiantum aleuticum Lawrence J. Winship 1974-11-16 15 San Mateo Jasper Ridge Biological Preserve, Stanford University. Among wet rocks below Searsville dam. Comment
  UC1063727  Adiantum jordanii G. E. Sindel 1935-8-2 322 San Mateo head of <Harington> Creek; Santa Cruz Quadrangle Comment
  RSA15284  Adiantum jordanii C. B. Wolf 1927-4-3 252 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  RSA12768  Aesculus californica Carl B. Wolf 1934-11-13 6242 San Mateo Menlo Park, in vacant area at Cambridge Ave and Cornell Road, NW of San Francisquito Creek. 15 Comment
  RSA292572  Agoseris grandiflora Lyman Benson 1935-5-12 6553 San Mateo Menlo Park 30 Comment
  CAS-BOT-BC23022  Agoseris grandiflora var. grandiflora Walter Knight; Irja Knight 1965-5-15 s.n. San Mateo Pig Ranch Ravine Comment
  CAS-BOT-BC22831  Agoseris heterophylla var. cryptopleura Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountain. Colma Canyon. Comment
  CAS-BOT-BC15236  Agoseris hirsuta George Oberlander 1950-6-3 1023 San Mateo Near San Andreas Lake Comment
  UC92296  Agoseris hirsuta C. F. Baker 1902-5-4 884 San Mateo Crystal Springs Lake Crystal Springs Lake Comment
  CAS-BOT-BC15227  Agoseris hirsuta W. R. Dudley 1896-11-14 s.n. San Mateo Santa Cruz Mountain Peninsula, on dam Pelarcitos Creek Comment
  CAS-BOT-BC15232  Agoseris hirsuta W. R. Dudley 1893-5-1 s.n. San Mateo North of San Bruno Comment
  CAS-BOT-BC15240  Agoseris hirsuta Roxana S. Ferris 1921-4-7 2129 San Mateo San Bruno Mountain 213 Comment
  JROH4779  Agrostis capillaris John Rawlings 2009-6-17 1045 San Mateo Jasper Ridge Biological Preserve, Stanford University; seven yards from paved road in middle of the blocked-off dirt path leading to Causeway Bridge 105 Comment
  CAS-BOT-BC127466  Agrostis densiflora John H. Thomas 1963-5-20 10153 San Mateo Ano Nuevo Island, about 0.5 mile off shore and about 20 miles northwest of Santa Cruz. Comment
  UCD52319  Agrostis exarata Beecher Crampton 1962-6-11 6498 San Mateo Pacifica, N. city limits, along State Hwy. 1, just s.w. of its junction with Skyline Blvd. Comment
  RSA523957  Agrostis exarata Gordon H. True Jr. 1937-10-16 849 San Mateo Near Thornton Beach 259 Comment
  UCD52248  Agrostis exarata var. microphylla Collector unknown 1925-6-15 2115 San Mateo Pescadero - Santa Cruz Rd. Comment
  CAS-BOT-BC139464  Agrostis hallii Walter Knight; Irja Knight 1965-6-20 s.n. San Mateo San Bruno Mountain. In Crystal Cave Canyon. Comment
  JROH4796  Agrostis microphylla A. G. Vestal 1923-5-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD53056  Agrostis microphylla S. S. Tillett; I. Sternback 1956-6-25 545 San Mateo on Middleton property s. of road to Portola State Park, just before entrance. 396 Comment
  CAS-BOT-BC138951  Agrostis pallens W. Knight; I. Knight 1964-5-4 s.n. San Mateo San Bruno Mountain. Colma Canyon, south ridge. Comment
  JROH4799  Agrostis pallens Herbert Dengler 1968-6-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; in swale between E. serp. and 2nd enclosure (reading from S.E. to N.W.) Comment
  JROH4823  Aira caryophyllea John H. Thomas 1958-5-10 7153 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4828  Aira caryophyllea John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5613  Aira caryophyllea John Rawlings 2014-4-11 1216 San Mateo Jasper Ridge Biological Preserve, Stanford University; in road G immediately north of its intersection with Rd. J. 144 Comment
  JROH5641  Aira caryophyllea John Rawlings 2014-6-2 1253 San Mateo Jasper Ridge Biological Preserve, Stanford University; Red Hot Poker Meadow north of Bear Creek and ~ 50 meters east of the Sand Hill Rd. fenceline 102 Comment
  POM296481B  Alisma triviale Lyman Benson 1931-5-29 2810 San Mateo Santa Cruz Mt. range, Lake Searsville River. 244 Comment
  RSA128834  Alisma triviale Roxana S. Ferris 1920-9-3 2045 San Mateo Second Mud Lake, Coal Mine Ridge, Santa Cruz Mtns. Comment
  JROH4543  Allium amplectens John H. Thomas 1985-5-7 23645 San Mateo Jasper Ridge Biological Preserve, Stanford University. Serpentine grassland beyond blue oak woodland Comment
  CAS-BOT-BC467291  Allium dichlamydeum Walter Knight; Irja Knight 1964-5-30 603 San Mateo North facing slope, Colma Canyon Comment
  JROH4548  Allium falcifolium H. L. Mason 1921-5-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4550  Allium falcifolium John H. Thomas 1957-4-16 6662 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent slopes Comment
  UCD138520  Allium falcifolium R. E. Dengler 1960-4-12 28 San Mateo Jasper Ridge, Stanford Biological Reserve. 190 Comment
  CAS-BOT-BC471100  Allium lacunosum var. lacunosum Lewis S. Rose 1931-5-15 s.n. San Mateo Emerald Lake, west of Redwood City Comment
  JROH4567  Allium lacunosum var. lacunosum John Hunter Thomas 1978-4-20 19082 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC132025  Allium peninsulare var. franciscanum Paul Arnaud 1941-4-19 s.n. San Mateo Redwood City - Hills - after Hesler farm entrance Comment
  CAS-BOT-BC132034  Allium peninsulare var. franciscanum A. D. E. Elmer 1903-6-1 4595 San Mateo San Mateo Comment
  POM169852  Allium peninsulare var. franciscanum A. D. E. Elmer 1903-06 s.n. San Mateo San Mateo Comment
  UC615425  Allium peninsulare var. franciscanum Beryl O. Schreiber 1932-5-29 309 San Mateo Spring Valley Water Company Road Comment
  JROH5874  Allium triquetrum Ann Lambrecht, Paul Heiple 2008-11-19 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; bench above San Francisquito Creek under bay laurel 82 Comment
  CAS-BOT-BC474305  Allium unifolium J. H. Thomas 1949-6-4 570 San Mateo Along the coast, 1.4 miles south of road to Pescadero Comment
  CAS-BOT-BC474307  Allium unifolium R. S. Ferris 1921-5-29 2183 San Mateo New Years Pt. Comment
  JROH1325  Alnus rhombifolia John H. Thomas 1965-1-29 10550 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below dam Comment
  SJSU10489  Alopecurus pratensis S. H. Casey & C. A. Brock 1975-6-20 546 San Mateo by Old Woodside Store, Woodside 134 Comment
  LA206319  Alopecurus saccatus D. Keck; 1932-5-6 1472 San Mateo Burlingame, N city limits Comment
  JROH174  Amaranthus albus John H. Thomas 1964-11-15 10522 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15844  Amaranthus californicus John Rawlings, Toni Corelli 2014-10-5 1268 San Mateo Santa Cruz mountains west of Skyline Blvd. USGS US Topo 7.5-minute map for La Honda; west of Windy Hill Open Space Preserve, Portola Valley 438 Comment
  CAS-BOT-BC55527  Ambrosia psilostachya W. R. Dudley 1902-9-21 s.n. San Mateo On causeway over Crystal Spring Reservoir Comment
  CAS-BOT-BC136833  Amelanchier utahensis Elizabeth McClintock 1972-4-23 s.n. San Mateo Slope above Fern Rock Comment
  CAS-BOT-BC136836  Amelanchier utahensis L. R. Abrams 1909-4-27 s.n. San Mateo San Mateo [Canon] Canyon, between Pulpit Rock and the forks of the Road Comment
  JROH1343  Amsinckia intermedia John Hunter Thomas 1983-4-5 21321 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  CAS-BOT-BC26849  Amsinckia lunaris Amos Arthur Heller 1907-5-23 8555 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  RSA0089730  Amsinckia lunaris W. R. Dudley 1894-4-27 s.n. San Mateo San Mateo Ravine. Santa Cruz Mountain Peninsula. Comment
  JROH1348  Amsinckia menziesii H. J. Dengler 1972-4-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; above east margin of Searsville Lake by trail Comment
  JROH1350  Amsinckia menziesii John Hunter Thomas 1987-4-4 24169 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Dam Comment
  CAS-BOT-BC389663  Anagallis arvensis Gail Metzger 1963-3-30 s.n. San Mateo Coyote Point Comment
  RSA116698  Anagallis arvensis W. R. Dudley 1900-3-17 s.n. San Mateo Bank near Ocean, South slope montara mts. Comment
  UC1125507  Anaphalis margaritacea T. Tyrrell 1928-9-26 10 San Mateo Pomponio Creek; Santa Cruz Quad. 91 Comment
  CDA10065  Anaphalis margaritacea A. C. Browne 1950-8-12 San Mateo Alpine Creek. 0 Comment
  CAS-BOT-BC391915  Anemone grayi W. R. Dudley 1894-3-26 s.n. San Mateo Santa Cruz Peninsula. Beyond King's Mt. House Comment
  SEINET12087662  Anemone grayi L. S. Rose 1931-1 s.n. San Mateo Kings Mountain Comment
  RSA246844  Angelica hendersonii R. F. Thorne, P. Everett 1965-8-1 35077 San Mateo 21.5 miles S of Golden Gate Bridge. 69 Comment
  CAS-BOT-BC273178  Anisocarpus madioides Josephine D. Randall 1907-4-27 90 San Mateo Santa Cruz Peninsula. Kings Mt Road Comment
  CAS-BOT-BC273170  Anisocarpus madioides Bruce G. Baldwin 1985-6-22 489 San Mateo 0.4 miles south of junction with Alpine Road along Skyline Road Comment
  CAS-BOT-BC273179  Anisocarpus madioides W. R. Dudley 1895-9-15 s.n. San Mateo Santa Cruz Mountain Peninsula. El Corte Madera Creek near Lumber Camp Comment
  UC917258  Anisocarpus madioides W. A. Harvey and J. M. Tucker 1948-6-29 1704 San Mateo just w junction with Highway 5 (Skyline Blvd.) (beside road to Portola State Park) Comment
  UCD135771  Anisocarpus madioides Bruce G. Baldwin 1985-6-22 489 San Mateo 0.4 mile south of junction with Alpine Road along Skyline Road. Comment
  CAS-BOT-BC102290  Anthemis cotula Saichi Kawahara 1968-7-29 458 San Mateo Old Stage Road, south bank of Pomponio Creek 36 Comment
  JROH5204  Anthoxanthum occidentale Volney Rattan 1867-3-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Redwoods, Searsville Comment
  CAS-BOT-BC454484  Aphanes occidentalis John H. Thomas 1965-4-29 10631 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  JROH3605  Aphanes occidentalis John H. Thomas 1977-2-20 18465 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA181419  Apocynum cannabinum James I. McMurphy 1908-8-20 s.n. San Mateo Ravine near shore this side of Crystal Springs Comment
  CAS-BOT-BC451568  Aponogeton distachyos M. P. Johnson 1967-2-18 10014 San Mateo On east side of State Highway 5, 4.6 miles south of southern boundary of San Francisco. Comment
  CAS-BOT-BC405894  Aquilegia formosa Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Bitter-cherry Ridge. Comment
  UC118822  Aquilegia formosa C. F. B. 1902-3-30 422 San Mateo Crystal Springs Lake Comment
  UCSC007720  Aquilegia formosa Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CHSC1435  Aquilegia formosa var. truncata J. Koopman 1929-5-11 San Mateo Moss Beach. Comment
  CAS-BOT-BC17316  Arabis blepharophylla Elizabeth McClintock 1967-4-16 s.n. San Mateo San Bruno Mountains. Buckeye Canyon. Comment
  CAS-BOT-BC17329  Arabis blepharophylla A. D. E. Elmer 1903-4-1 4936 San Mateo Santa Cruz Peninsula. San Bruno Hills. Comment
  SJSU8506  Arabis blepharophylla P. F. Canziani 1979-3-2 San Mateo canyon NW of intersection of Hillside Blvd & Chestnut Ave, San Bruno Mt Comment
  RSA0125507  Arabis blepharophylla Glenn A. Gorelick 1967-2-10 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  RSA112474  Aralia californica Theo C. Zschokke 1903-7-10 s.n. San Mateo Goat Ranch Road, Corte de Madera Cr. Comment
  CAS-BOT-BC128673  Arbutus menziesii B. Bartholomew; L. R. Landrum; H. W. Li; T. S. Ying 1985-11-6 3676 San Mateo Just S of the juction of State Highway 35 with La Honda Road 460 Comment
  JROH1916  Arbutus menziesii John H. Thomas 1959-4-5 7665 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA112355  Arbutus menziesii W. R. Dudley 1893-2-18 s.n. San Mateo Searsville to La Honda. Comment
  JROH5561  Arctostaphylos John Rawlings, Toni Corelli 2013-1-29 1110 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail to Hermit's Mine site. 195 Comment
  RSA252169  Arctostaphylos andersonii G. D. Wallace 1974-12-28 1375 San Mateo Northern Santa Cruz Mtns., S of Upper Crystal Springs Res. along Skyline Blvd. 2.8 mi N of jct. of King Mtn. Rd. opposite Farwell's Rhododendron Nursery. Within fog belt. 640 Comment
  SEINET11987325  Arctostaphylos andersonii J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4206 San Mateo from Strybing Arboretum, Golden Gate Park, San Francisco, originally from King's Mountain Comment
  SEINET11987248  Arctostaphylos andersonii var. imbricata W. Knight, Knight, I. 1981-1 3903 San Mateo Tilden Botanic Garden, Berkeley, originally from San Bruno Mt Comment
  SEINET11989287  Arctostaphylos andersonii var. imbricata W. Knight, Knight, I.; McClintock, E. 1982-1 4445 San Mateo Kamchatka Point, San Bruno Mt Comment
  CAS-BOT-BC23503  Arctostaphylos crustacea Roxana S. Ferris 1918-3-27 738 San Mateo La Honda Road Comment
  CAS-BOT-BC23504  Arctostaphylos crustacea Josephine D. Randall 1906-3-9 137 San Mateo Road to King's Mt. Comment
  SEINET11988253  Arctostaphylos crustacea Unknown 1959-1 321 San Mateo 3.5 mi from junction CA 5 on Kings Mt. Rd Comment
  JROH1933  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1974-4-25 17208 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville end of ridge Comment
  JROH1938  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1968-2-11 14145 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1940  Arctostaphylos crustacea subsp. crustacea John Hunter Thomas 1979-5-10 19547 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI14662  Arctostaphylos imbricata Lewis S. Rose 1961-3-2 61014 San Mateo San Bruno HIlls 366 Comment
  RSA166365  Arctostaphylos imbricata R. F. Thorne, Percy C. Everett, K. Thorne 1963-6-9 322256 San Mateo On top of San Bruno Mt. Near the TV tower 335 Comment
  RSA51443  Arctostaphylos imbricata P. H. Raven 1950-2-25 1383 San Mateo W end of ridge behind NBC Television Station, San Bruno Mountains 457 Comment
  CAS-BOT-BC45601  Arctostaphylos montaraensis Walter Knight; Roger Raiche 1982-1-23 4415 San Mateo Montara Mt. 304 Comment
  SBBG21959  Arctostaphylos montaraensis R. F. Thorne with P. C. Everett 1963-6-9 32224 San Mateo top of San Bruno Mtn, near the TV Tower 335 Comment
  UC21803  Arctostaphylos montaraensis C. T. Blake 1893-5-27 San Mateo Pilarcitos Reservoir Comment
  UC21805  Arctostaphylos montaraensis C. T. Blake 1893-5-27 San Mateo Pilarcitos Reservoir Comment
  UCD51760  Arctostaphylos montaraensis Walter Knight; Irja Knight and Elizabeth McClintock Date Unknown 4447 San Mateo Pacifica; San Pedro County Park; about 1/2 dozen plants 1/4 mi. east of parking lot. Comment
  SEINET11987487  Arctostaphylos montaraensis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4203 San Mateo Strybing Arboretum, Golden Gate Park, San Fran., orig. few yds NE of Pacific Rock on San Bruno Mt Comment
  SEINET11988204  Arctostaphylos montaraensis W. Knight, Raiche, R. 1982-1 4415 San Mateo Mantara Mountain 305 Comment
  SEINET11989203  Arctostaphylos montaraensis E. McClintock, Knight, W.; Knight, I. 1982-1 4643 San Mateo San Bruno Mountain 320 Comment
  SEINET11989280  Arctostaphylos montaraensis R. Gankin, Hildreth, W. R. 1966-1 738 San Mateo Montara Mountain Comment
  UC486533  Arctostaphylos nummularia Mrs. H. P. Bracelin 1932-7-4 San Mateo e Pescadero; Butano Forest Comment
  CAS-BOT-BC39822  Arctostaphylos pacifica Walter Knight; Irja Knight 1981-3-1 4049 San Mateo From Tilden Botanic Garden, Berkeley. Originally collected from San Bruno Mountain. Comment
  JEPS98893  Arctostaphylos pacifica James Roof 1961-4-18 San Mateo type locality; Pacific Ridge, San Bruno Mountain Comment
  RSA633496  Arctostaphylos pacifica Jon E. Keeley 1996-6-24 27571 San Mateo On knob below end of paved road at top of San Bruno Mountain. 350 Comment
  RSA633501  Arctostaphylos pacifica Jon E. Keeley 1996-6-24 27574 San Mateo On knob below end of paved road at top of San Bruno Mountain. 350 Comment
  CAS-BOT-BC44750  Arctostaphylos regismontana Eric Walther 1919-8-1 s.n. San Mateo Woodside Comment
  RSA119223  Arctostaphylos regismontana John H. Thomas 1954-2-13 3686 San Mateo Along Skyline Highway between Kings Mt. Road and La Honda Road. 609 Comment
  RSA40324  Arctostaphylos regismontana L. S. Rose 1947-3-11 47028 San Mateo Kings Mountain, Type Locality. 609 Comment
  UC1120831  Arctostaphylos regismontana A. E. Wieslander and B. O. Schreiber 1940-3-5 4 San Mateo road from Woodside to King's Mt.; Santa Cruz Quadrangle 304 Comment
  UC1120837  Arctostaphylos regismontana A. E. Wieslander and B. O. Schreiber 1940-3-5 8 San Mateo road from Woodside to King's Mt.; Santa Cruz Quadrangle 487 Comment
  UC1120843  Arctostaphylos regismontana G. E. Sindel 1935-10-16 380 San Mateo 1 1/8 mi wnw Sierra Moreno; Santa Cruz Quadrangle Comment
  UC565403  Arctostaphylos regismontana Charles M. Belshaw 1936-1-25 1466 San Mateo Kings Mountain road 4.7 mi w Woodside; South Coast Range Comment
  UCD53804  Arctostaphylos regismontana Roman Gankin 1966-5-17 740 A San Mateo Montara Mountain. Comment
  CAS-BOT-BC44672  Arctostaphylos sensitiva W. R. Dudley 1899-1-2 s.n. San Mateo On dry hills between Butano Cr. and Little Butano Cr. - Santa Cruz Mountain Peninsula Comment
  UC1120095  Arctostaphylos tomentosa subsp. crinita N. K. Carlson 1935-6-12 47 San Mateo 1 mi e Hollow Tree; Santa Cruz Quadrangle Comment
  RSA636842  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley 1993-9-8 24654 San Mateo NW side of Montara Mtn. 150 Comment
  RSA636845  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24645 San Mateo NW side of Montara Mtn. 150 Comment
  RSA636846  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24642 San Mateo NW side of Montara Mtn. 150 Comment
  UC1120136  Arctostaphylos tomentosa subsp. crustacea C. M. Belshaw 1935-1-25 1464 San Mateo 4.5 mi w Woodside; Santa Cruz Quadrangle Comment
  UC565408  Arctostaphylos tomentosa subsp. crustacea Chas. M. Belshaw 1936-1-25 1465 San Mateo Kings Mountain rd 4.5 mi w Woodside; South Coast Range Comment
  UCD51721  Arctostaphylos tomentosa var. crinita Roman Gankin 1959-2-22 325 San Mateo 1.2 miles from junction State Hwy 5 on King's Mt. Road, San Mateo County, California. Comment
  CAS-BOT-BC46831  Arctostaphylos uva-ursi Arthur Menzies; Elizabeth McClintock 1963-2-16 s.n. San Mateo Slope southeast of parking lot below top of mountain Comment
  CAS-BOT-BC46837  Arctostaphylos uva-ursi Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mt. Few hundred yards up Cable Ravine Comment
  UCD52049  Arctostaphylos uva-ursi Roman Gankin 1959-3-25 328 San Mateo 1/4 mile east of KRON TV station transmitter. Associated with Baccharis hybrids, Lupinus and Ceanothus. San Mateo County, California. Comment
  RSA0077993  Arctostaphylos uva-ursi B. A. Stein 1981-2-22 421 San Mateo San Bruno Mountain, just E of summit. 396 Comment
  SEINET11987488  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4204 San Mateo Strybing Arboretum, Golden Gate Park, San Francisco, orig. from San Bruno Mt Comment
  CAS-BOT-BC27300  Arctostaphylos uva-ursi var. suborbiculata W. Knight; Irja Knight; Elizabeth McClintock 1981-7-3 4492 San Mateo Kamchatka Point, San Bruno Mountain Comment
  SEINET11987195  Arctostaphylos uva-ursi var. suborbiculata W. Knight, Knight, I. 1981-1 3917 San Mateo Tilden Botanic Garden, Berkeley, orig. from Kamchatka Point on San Bruno Mt Comment
  CAS-BOT-BC47702  Armeria maritima subsp. californica Adele Lewis Grant 1917-5-6 940 San Mateo Pebble Beach near Pescadero Comment
  CAS-BOT-BC47706  Armeria maritima subsp. californica J. H. Thomas 1963-8-4 10237 San Mateo Just north of Pigeon Point Light House Comment
  POM204327  Armeria maritima subsp. californica I. L. Wiggins 1929-7-4 3801 San Mateo Pescadero Beach Comment
  CHSC1225  Armeria maritima var. californica J. Baynes 1929-5-23 San Mateo Half Moon Bay. Comment
  CAS-BOT-BC82513  Arnica discoidea L. R. A. 1902-5-20 2464 San Mateo [King's] Kings Mountain Comment
  CAS-BOT-BC82514  Arnica discoidea Josephine D. Randall 1907-6-29 50 San Mateo [King's] Kings Mt. Road Comment
  RSA116672  Arnica discoidea W. R. Dudley 1894-05 s.n. San Mateo San Mateo County: Woodside to Crystal Springs Reservoir Comment
  CAS-BOT-BC84882  Artemisia californica George Oberlander 1949-10-8 392 a San Mateo San Francisco Watershed Reserve - Sweeney Ridge Comment
  CAS-BOT-BC84886  Artemisia californica Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo San Bruno Mountain, Power Line Ridge Comment
  JROH514  Artemisia californica L. R. Abrams 1902-12-23 3098 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  RSA94535  Artemisia californica F. W. Peirson 1925-9-13 6429 San Mateo Rockaway beach. Comment
  SEINET11853229  Artemisia californica Unknown 1930-1 7303 San Mateo Menlo Park Golf Court Comment
  POM289331  Artemisia douglasiana Lyman Benson 1937-7-8 8448 San Mateo Lake Searsville, Stanford, Mt. Range: Santa Cruz; Watershed: San Francisco Bay 122 Comment
  SBBG33991  Artemisia douglasiana L. S. Rose 1969-8-8 69090 San Mateo Skyline Blvd and Half Moon Bay Rd, Cahill Ridge 243 Comment
  POM204313  Artemisia pycnocephala I. L. Wiggins 1929-7-4 3800 San Mateo Pescadero Beach Comment
  CAS-BOT-BC93636  Artemisia pycnocephala Elizabeth McClintock; Paul Reeberg 1989-4-23 s.n. San Mateo San Bruno Mountains - Reservoir Hill, west-facing slope 121 Comment
  CAS-BOT-BC389674  Arthrocnemum subterminale Maryann Danielson 1969-8-11 s.n. San Mateo South of Coyote Point Comment
  POM268915  Asclepias cordifolia Lyman Benson 1930-5-3 s.n. San Mateo Above Woodside, La Honda Grade 244 Comment
  JROH432  Asclepias fascicularis John H. Thomas 1974-6-27 17444 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA184926  Aster chilensis L. S. Rose 1966-8-15 66083 San Mateo Pillar Point 5 Comment
  POM261373  Aster chilensis H. C. Cauteloro 1940-9-2 s.n. San Mateo North of Pescadero Comment
  CAS-BOT-BC478066  Asteraceae Peter H. Raven 1957-9-1 11302 San Mateo Along Skyline Blvd. at Woodside Road Comment
  JEPS21679  Astragalus gambelianus W. R. Dudley 1894-4-21 San Mateo below Crystal Springs Dam (Santa Cruz Peninsula); , below Crystal Springs Dam Comment
  CAS-BOT-BC186760  Astragalus gambelianus L. R. A. 1902-5-4 2402 San Mateo Woodside Comment
  CAS-BOT-BC186768  Astragalus gambelianus W. R. Dudley 1894-4-21 s.n. San Mateo Below Crystal Springs Dam Comment
  CAS-BOT-BC177966  Astragalus nuttallii var. virgatus V. F. Hesse 1954-7-30 1342 San Mateo Near Pebble Beach 15 Comment
  CAS-BOT-BC177974  Astragalus nuttallii var. virgatus C. F. Leitholdt 1894-7-1 s.n. San Mateo Pescadero Comment
  UCD35773  Astragalus nuttallii var. virgatus Beecher Crampton 1962-6-11 6495 San Mateo Pacifica, north city limits, along State Hwy. 1 just southwest of its junction with Skyline Blvd. Comment
  RSA498284  Astragalus nuttallii var. virgatus E. A. Purer 1933-8-13 5405 San Mateo Santa Clara Valley near Baden Station. Comment
  CAS-BOT-BC193094  Astragalus pycnostachyus var. pycnostachyus J. H. Thomas 1958-8-1 7372 San Mateo Just north of mouth of San Gregorio Creek 30 Comment
  RSA294164  Astragalus pycnostachyus var. pycnostachyus Robert A. Norris, John L. Inase, Allen Nakagawa 1981-7-25 4225 San Mateo N of mouth of Pescadero Creek, Pescadero State Beach. Comment
  SEINET10532282  Athyrium filix-femina Mary Susan Taylor 1978-8-30 Taylor 1859 San Mateo Comment
  UC136114  Athysanus pusillus C. F. Baker 1902-4-6 456 San Mateo Crystal Springs Lake Comment
  UCD39016  Atriplex californica Beecher Crampton 1962-6-11 6514 San Mateo Pacifica, Rockaway Beach, State Hwy. 1. Comment
  SD40199  Atriplex leucophylla Edith A. Purer 1933-7-27 5349 San Mateo Pigeon Point. Comment
  SEINET5727745 Image available Atriplex semibaccata Delzie Demaree 1932-1 10529 San Mateo Belmont; Belmont Comment
  POM177454  Atriplex subspicata L. R. Abrams, I. Wiggins 1930-11-13 175 San Mateo Skyline Blvd. 1 mile SW of Colma. Comment
  CAS-BOT-BC145955  Avena fatua Ned Cahill 1974-4-30 221 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  CAS-BOT-BC145957  Avena fatua John Thomas Howell 1956-4-25 31293 San Mateo Skyline Boulevard just north of Crystal Springs Lake dam. Comment
  JROH4845  Avena fatua W. Lennihan 1990-4-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Across parking lot from picnic tables. Comment
  POM216547  Baccharis douglasii D. D. Keck 1931-9-27 1271 San Mateo Dumbarton bridge Comment
  RSA212153  Baccharis douglasii L. S. Rose 1969-8-22 69099 San Mateo Skyline Blvd. & La Honda Road. 610 Comment
  JROH533  Baccharis glutinosa John H. Thomas 1968-5-31 12938 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH535  Baccharis glutinosa John H. Thomas 1974-8-3 17497 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC750699  Baccharis glutinosa Lewis S. Rose 1946-7-14 46220 San Mateo Searsville Lake margin Searsville Lake 68 Comment
  CAS-BOT-BC99518  Baccharis pilularis H. L. Mason 1922-3-27 s.n. San Mateo near mouth of Arroyo de los Frijoles Comment
  POM54355  Baccharis pilularis A. D. E. Elmer 1903-02 4576 San Mateo Portola Comment
  RSA136310  Baccharis pilularis John H. Thomas 1949-10-16 1144 San Mateo Along sandstone bluffs, just north of outlet of San Gregorio Creek Comment
  SEINET11861777  Baccharis pilularis Unknown 1929-10-17 7293 San Mateo Kings Mt Comment
  LA203030  Baccharis pilularis subsp. pilularis C. B. Wolf; 1934-11-9 6240 San Mateo 200 yds. S of Pigeon Point Lighthouse 15 Comment
  JROH1445  Barbarea orthoceras John Hunter Thomas 1980-5-6 19933 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD97579  Bassia hyssopifolia Malcolm A. Nobs; S. Galen Smith 1949-8-27 1617 San Mateo E of Redwood City. Comment
  CHSC56593  Bellardia trixago Steven Triano 1988-5-24 174 San Mateo Along w side of Sand Hill Road 0.5 mi s of its jct. with Whiskey Hill Road and 2.5 mi s of Woodside. 121 Comment
  JROH3922  Bellardia trixago John Hunter Thomas 1982-5-18 20931 San Mateo Jasper Ridge Biological Preserve, Stanford University; along SLAC-JR boundary Comment
  CAS-BOT-BC100195  Bellis perennis George Oberlander 1950-5-6 864 San Mateo on South Cahill Ridge Comment
  RSA681564  Berberis nevinii Annuschka Deb 1989-7-14 287 San Mateo YBN Demonstration Garden. (Yerba Buena Nursery) Comment
  CAS-BOT-BC75868  Berberis pinnata W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Peninsula. Hills west of San Andreas Reservoir. Comment
  CAS-BOT-BC75878  Berberis pinnata John H. Thomas 1977-3-26 18506 San Mateo Butano State Park, redwood region. Comment
  CDA3007  Beta vulgaris E. L. Labadie 1961-10-24 San Mateo Railroad tracks at Chestnut Street, Redwood City. 0 Comment
  UC662425  Bidens pilosa H. P. Chandler 1941-12-4 San Mateo 1/2 mi e of Half Moon Bay (along highway) Comment
  UCD129560  Bidens pilosa Norman Frazier 1941-12-4 s.n. San Mateo along Highway, 1/2 mile east of Half Moon Bay. Comment
  CAS-BOT-BC66299  Blechnum spicant W. R. Dudley 1901-12-31 s.n. San Mateo along the upper Gazos Creek Comment
  RSA465634  Boisduvalia stricta E. S. Spalding 1923-8-3 s.n. San Mateo Pulgas Tunnel, east side. Comment
  CAS-BOT-BC28211  Bolboschoenus fluviatilis Ida R. Hayward 1927-7-4 s.n. San Mateo By road crossing Crystal Springs Lake. Comment
  CAS-BOT-BC31091  Bolboschoenus maritimus Roxana S. Ferris 1920-8-11 2037 San Mateo Salt marsh near end of Embarcadero Road, Palo Alto Comment
  SJSU14136  Borago officinalis R. T. Ross 1975-3-2 San Mateo S side, Pillar Point Harbor, El Granada Comment
  CAS-BOT-BC95344  Bowlesia incana Walter Knight; Irja Knight 1965-3-28 s.n. San Mateo Devil's Arroyo, San Bruno Mountain Comment
  CAS-BOT-BC95343  Bowlesia incana Walter Knight; Irja Knight 1965-3-28 1107 San Mateo Trillium Gulch, San Bruno Mountain Comment
  JROH4866  Brachypodium sylvaticum John Rawlings 2007-10-1 1025 San Mateo Jasper Ridge Biological Preserve, Stanford University. In middle of road inside Preserve Fence along Sand Hill Road south of caretaker's house. 107 Comment
  UCD56896  Brachypodium sylvaticum K. Melo 2003-12-1 PDR 138751 9 San Mateo San Francisco Peninsula. Hwy. 84 at Grandview Terrace and Schilling Lake. Martin Creek drainage. Comment
  CAS-BOT-BC28047  Brassica fruticulosa Elizabeth McClintock; Paul Reeberg 1989-2-4 s.n. San Mateo San Bruno Mountains. Near horse corral, off Bayshore. Comment
  SEINET12004611  Brassica juncea E. H. Graham 1931-1 s.n. San Mateo Ano Nuevo Pt., S of San Francisco Comment
  JROH5555  Brassica nigra Toni Corelli 2013-6-6 380 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 12, 100 meters north of Mapache Gate. 127 Comment
  POM272569  Brassica nigra Lyman Benson 1939-6-24 9676 San Mateo Menlo Park. 30 Comment
  CAS-BOT-BC30257  Brassica nigra Alice Eastwood; John Thomas Howell 1939-7-9 7439 San Mateo Skyline Blvd. east of La Honda. Comment
  CAS-BOT-BC36792  Brassica rapa J. H. Thomas 1949-10-16 1143 San Mateo Just north of outlet of San Gregorio Creek. Comment
  CAS-BOT-BC36796  Brassica rapa Javier Penalosa 1963-2-23 2662 San Mateo San Bruno Mountains. Ravine south of Crocker Avenue. 213 Comment
  JROH1466  Brassica rapa John Hunter Thomas 1978-5-23 19221 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET3292600 Image available Brassica rapa David D. Keck 1932-2-16 1377 San Mateo Portola, in cultivated orchards, roadside Potola Comment
  CAS-BOT-BC145331  Briza minor John H. Thomas 1961-5-13 9344 San Mateo At Franklin Point. Comment
  CAS-BOT-BC145341  Briza minor Walter Knight; Irja Knight 1965-4-24 1027 San Mateo San Bruno Mountain. Point San Bruno. Comment
  JROH4879  Briza minor John H. Thomas 1963-5-15 10090 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM199078  Briza minor A. D. E. Elmer 1903-05 4912 San Mateo Crystal Springs Lake. Comment
  UC144492  Briza minor Copeland 1903-5-24 3257 San Mateo above Crystal Springs Lake Comment
  JROH5753  Briza minor M. Day 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Whiskey Hill Gate Comment
  UC1134026  Brodiaea elegans subsp. elegans N. Carlson 1935-6-20 72 San Mateo between Slate and Oil Creek; Santa Cruz Quad. 670 Comment
  CAS-BOT-BC484350  Brodiaea elegans subsp. elegans W. R. Dudley 1893-5-27 s.n. San Mateo By road to Searsville Comment
  SBBG39527  Brodiaea terrestris subsp. terrestris L. S. Rose 1970-4-8 70024 San Mateo Black Mtn, W of San Mateo 121 Comment
  CAS-BOT-BC483182  Brodiaea terrestris subsp. terrestris W. R. Dudley 1906-5-8 s.n. San Mateo By road south of Crystal Springs Lake Comment
  CAS-BOT-BC148995  Bromus carinatus var. carinatus Le Roy Abrams 1915-6-14 5558 San Mateo Kings Mountain. At first bridge. Comment
  CAS-BOT-BC149022  Bromus carinatus var. carinatus Ned Cahill 1974-5-30 317 San Mateo Near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City. Comment
  JROH4896  Bromus carinatus var. carinatus John H. Thomas 1984-4-2 23273 3 D San Mateo Jasper Ridge Biological Preserve, Stanford University. Low-flow crossing. Comment
  SEINET943617  Bromus carinatus var. carinatus Robert A. Norris 1984-1 4656 San Mateo Blue Blossom Hill, San Bruno Mountains 365 Comment
  CAS-BOT-BC148764  Bromus carinatus var. marginatus Ira L. Wiggins 1929-5-10 3672 San Mateo At Pigeon Point. Comment
  JROH4909  Bromus diandrus John H. Thomas 1967-4-20 12704 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA475252  Bromus diandrus Lyman Benson 1935-5-5 6520 San Mateo Lake Searsville; Santa Cruz Mt. Range. S. F. Bay watershed 152 Comment
  CAS-BOT-BC155133  Bromus hordeaceus W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of Sneath's Ranch Hill near Millbrae. Comment
  CAS-BOT-BC155136  Bromus hordeaceus Ned Cahill 1974-4-30 222 San Mateo Near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City. Comment
  JROH4918  Bromus hordeaceus John H. Thomas 1963-5-15 10093 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4924  Bromus hordeaceus John Hunter Thomas 1984-4-24 23303 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD30516  Bromus hordeaceus 1933-4-10 2 San Mateo Stanford University; Botany Garden Comment
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Apr 12 2012
  UCSB18536  Bromus hordeaceus Schulte, John 1963-4-28 San Mateo Jasper Ridge, 3 mi SW of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mtns Comment
  RSA790273  Bromus hordeaceus subsp. hordeaceus Peter Rubtzoff 1976-6-13 8634 San Mateo San Bruno Mtn: 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JROH4939  Bromus laevipes W. Lennihan 1990-4-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Eastern draw, 40 yards down. Comment
  RSA181249  Bromus laevipes John H. Thomas 1961-5-7 9256 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  UCD58965  Bromus madritensis Rimo Bacigalupi; L. Heckard 1961-5-14 7700 San Mateo Near southern end of Crystal Springs Lake. Along Canada Road. 95 Comment
  JROH4956  Bromus madritensis subsp. rubens John Rawlings 2013-4-16 1134 San Mateo Jasper Ridge Biological Preserve, Stanford University; Escobar Gate fenceline about 50 m east of the gate 156 Comment
  JROH4959  Bromus madritensis subsp. rubens John Rawlings 2013-5-7 1182 San Mateo Jasper Ridge Biological Preserve, Stanford University. Road L near the Searsville School sign. 107 Comment
  POM264990  Bromus marginatus I. L. Wiggins 1929-5-10 3672 San Mateo Pigeon Point Comment
  UCD59044  Bromus maritimus Roxana S. Ferris 1920-4-27 1981 San Mateo Santa Cruz Mountain Peninsula. Ano Nuevo. 0 Comment
  SEINET9757293 Image available Bromus rigidus Robert A. Norris 1975-3-31 San Mateo near Crocker Ave., San Bruno Mts. Comment
  CAS-BOT-BC185394  Bromus vulgaris W. R. Dudley 1896-7-29 s.n. San Mateo Santa Cruz Mountain Peninsula. La Honda. Comment
  JEPS26836 Image available Bromus vulgaris Rimo Bacigalupi with L. R. Heckard 1961-5-14 7699 San Mateo about 3/4 mi below and se of Stone Dam Reservoir (canyon of Pilarcitos Creek, w base of Cahill Ridge); Cahill Ridge 152 Comment
  CAS-BOT-BC233705  Buddleja davidii J. H. Thomas 1958-6-26 7288 San Mateo Along Skyline Blvd., about 0.3 miles north of Pulgas water temple. 91 Comment
  UC144260  Cakile edentula Copeland 1903-6-5 3319 San Mateo Montara Point; Pacific Coast, Montara Point Comment
  CAS-BOT-BC36946  Cakile maritima var. maritima Walter Knight; Irja Knight; Elizabeth McClintock 1964-9-11 s.n. San Mateo San Bruno Mountains. Point San Bruno. Comment
  POM199081  Calamagrostis A. D. E. Elmer 1903-06 4693 San Mateo San Pedro Comment
  POM199095  Calamagrostis nutkaensis A. D. E. Elmer 1903-05 5040 San Mateo San Pedro Comment
  POM199096  Calamagrostis nutkaensis A. D. E. Elmer 1903-05 5033 San Mateo San Pedro Comment
  CAS-BOT-BC438534  Calandrinia ciliata Catherine A. Toschi 1963-2-23 63 :36 San Mateo North slope San Bruno Mountains above Crocker Avenue 152 Comment
  CHSC39803  Calandrinia ciliata Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  JROH1642  Callitriche marginata Paul Heiple 2010-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; along side of Rd E Comment
  JROH4597  Calochortus albus John H. Thomas 1967-6-1 12976 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC492211  Calochortus albus John H. Thomas 1971-5-2 15859 San Mateo Serpentine fields bordered by chaparral, near intersection of Canada and Edgewater roads. About 4 miles SW of center of Redwood City. 304 Comment
  CAS-BOT-BC492220  Calochortus albus Otto M. Sokol 1953-5-29 117 San Mateo Bear Creek Road Comment
  SEINET12044768  Calochortus albus G. C. Kimber, Roush, L. 1918-1 s.n. San Mateo Alpine Rd near Corte Madera Cr Comment
  SEINET12044654  Calochortus coeruleus J. D. Randall 1907-1 224 San Mateo Kings Mt Comment
  SEINET7096717  Calochortus luteus A. G. Vestal 1963-7-12 s.n. San Mateo Jasper Ridge. NAD27, 37? deg. 24' 29ao, -122?_ 13' 33ao (converted to WGS84 decimal degrees) UTM Zone 10, 568517mE, 4140222mN. Comment
  POM196563  Calochortus luteus W. R. Dudley 1894-5-18 s.n. San Mateo Santa Cruz Peninsula: From Woodside to Crystal Springs Lake Comment
  SEINET3557476 Image available Calochortus luteus Lewis S. Rose 1933-6-23 33255 San Mateo Crystal Springs Lake. Comment
  SEINET3885475  Calochortus luteus Lewis S. Rose 1931-5-24 23 San Mateo Redwood City.; 0 Comment
  POM169470  Calochortus tolmiei C. F. Baker 1902-5-10 796 San Mateo Kings Mountain. Comment
  CAS-BOT-BC493995  Calochortus tolmiei Le Roy Abrams 1902-5-20 s.n. San Mateo King's Mountain Comment
  UC1134540 Image available Calochortus venustus N. Carlson 1935-6-20 74 San Mateo at Head (or ridge) of Oil and Slate Creek Santa Cruz Quad. 670 Comment
  CAS-BOT-BC494041  Calochortus venustus Mrs. Alvin Seale 1932-6-5 s.n. San Mateo Hills near Redwood City Comment
  SEINET12044558  Calochortus venustus L. S. Rose 1931-1 s.n. San Mateo Redwood City 610 Comment
  UC942937  Calystegia purpurata Lewis S. Rose 1950-5-20 50141 San Mateo hills w Redwood City (Emerald Lake Region); , w of Redwood City 243 Comment
  CAS-BOT-BC224648  Calystegia purpurata subsp. purpurata J. H. Thomas 1949-6-4 595 San Mateo 1 mile E. of Pescadero Comment
  CAS-BOT-BC224649  Calystegia purpurata subsp. purpurata George Oberlander 1949-7-24 308 San Mateo San Franciso Watershed Reserve. Sawyer Ridge Comment
  CAS-BOT-BC224653  Calystegia purpurata subsp. purpurata Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon Comment
  CAS-BOT-BC224656  Calystegia purpurata subsp. purpurata A. D. E. Elmer 1903-6-1 4299 San Mateo Pescadero Comment
  CDA34776  Calystegia purpurata subsp. purpurata D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .173 San Mateo Swanton Rd just S of Ano Nuevo above Weddell Creek. Comment
  UC465972  Calystegia soldanella Katharine Brandegee 1913-8-11 San Mateo Tobin Comment
  POM187504  Camissonia cheiranthifolia subsp. cheiranthifolia E. A. Purer 1933-7-27 5388 San Mateo 2 miles south of Pigeon Point. Comment
  RSA116751  Camissonia ovata James I. McMurphy 1902-3-22 s.n. San Mateo Near Portola Comment
  CAS-BOT-BC160327  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Robt. T. Orr 1961-6-27 s.n. San Mateo [Ano] Ano Nuevo Island Comment
  SEINET10462891  Campanula prenanthoides LeRoy R. Abrams 1907-8-26 Abrams s.n. San Mateo KINGS MT, MOIST SHADED REDWOODS Comment
  SEINET10463019  Campanula prenanthoides Wolf 1927-7-20 WOLF 646 San Mateo LA HONDA GRADE Comment
  JROH1479  Capsella bursa-pastoris John Hunter Thomas 1987-5-19 24290 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  CAS-BOT-BC37658  Cardamine californica W. R. Dudley 1894-3-1 s.n. San Mateo Santa Cruz Peninsula. Near South San Francisco. Comment
  CAS-BOT-BC37689  Cardamine californica Javier Penalosa 1963-3-9 2698 San Mateo San Bruno Mountains. Ravine 0.5 mile east of 1314 foot summit. 304 Comment
  CAS-BOT-BC37669  Cardamine californica Reed Clark Rollins 1941-3-16 2943 San Mateo Santa Cruz Mountains. East slope of Kings Mountain, 6 miles west of Woodside. Comment
  RSA484626  Cardamine californica var. integrifolia Glenn A. Gorelick 1967-2-10 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  JROH1496  Cardamine oligosperma John Hunter Thomas 1981-4-5 20261 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UCSC007728  Cardamine oligosperma Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC384840  Cardionema ramosissimum Philip C. Wheeler 1965-5-17 s.n. San Mateo San Bruno Mountain. In Crocker Hills near Cow Palace Comment
  CDA6894  Carduus tenuiflorus Agricultural Commissioner May 1955 San Mateo San Mateo. 0 Comment
  UCSC006296  Carex Randall Morgan 2001-10-19 3778 San Mateo Half Moon Bay, Moist flat on RMC Lonestar property, upper San Vincente Ck watershed Comment
  JEPS48963  Carex amplifolia James G. Daly 1934-1 424 San Mateo upper Corte de Madera Canyon Comment
  CAS-BOT-BC19323  Carex barbarae Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5247 San Mateo Lobitos. Comment
  CAS-BOT-BC19324  Carex barbarae George Oberlander 1950-4-18 513 San Mateo San Francisco Watershed Reserve. Marsh, south boundary. Comment
  CAS-BOT-BC34073  Carex brevicaulis John Thomas Howell 1938-5-1 13774 San Mateo San Bruno Hills. Comment
  UCD166147  Carex brevicaulis Jack Major; M. Forde and S. Bamberg 1962-4-3 732 San Mateo Ano Nuevo Point. (Exact location unknown. Coordinates estimated by label maker). Comment
  CAS-BOT-BC18923  Carex densa John Thomas Howell 1938-5-1 13781 San Mateo Near South San Francisco. Comment
  CAS-BOT-BC18924  Carex densa John Thomas Howell 1938-5-1 13786 San Mateo Near South San Francisco. Comment
  JROH4327  Carex densa Herbert Dengler 1959-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM230443  Carex densa J. T. Howell, Alice Eastwood 1937-5-7 4328 San Mateo Visatacion Valley Comment
  POM193755  Carex gracilior W. R. Dudley 1900-5-17 s.n. San Mateo Seal Creek? Santa Cruz Mountain Peninsula. Comment
  CAS-BOT-BC146604  Carex gynodynama Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5255 San Mateo Pescadero Comment
  JROH4349  Carex harfordii John Rawlings 2009-5-13 1055 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just beyond NE terminus of Leonard's Bridge, a large clump on the SE verge of the trail. 107 Comment
  CAS-BOT-BC21817  Carex harfordii Alice Eastwood; John Thomas Howell 1938-6-16 6049 San Mateo Ano Nuevo Comment
  UC803889  Carex hendersonii G. L. Stebbins Jr. 1949-6-5 3983 San Mateo on Skyline Blvd. w Palo Alto (summit of Kings Mtn.); Kings Mtn. Comment
  SEINET8345404  Carex hirta LeRoy E. Detling 1934-3-7 1008 San Mateo none. Comment
  RSA10995  Carex nudata Carl B. Wolf 1928-3-13 1532 San Mateo San Francisquito Creek near Isolation Hospital-Stanford. Comment
  CAS-BOT-BC119348  Carex obnupta V. F. Hesse 1953-8-22 1190 San Mateo Butano Ridge. 609 Comment
  UCR279853  Carex obnupta Peter Rubtzoff 1978-5-18 9174 San Mateo San Francisco Bay Region, San Bruno Mountains, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 220 Comment
  CAS-BOT-BC119349  Carex obnupta Peter Rubtzoff 1953-5-14 1348 San Mateo Pilareitos Creek canyon, 1 to 2 mi downstream from Pilareitos Lake. 609 Comment
  CAS-BOT-BC278759  Carex pendula John Rawlings 2011-7-3 s.n. San Mateo Along Purisima Creek, 200 m E of junction of Purisima Creek Trail and path to Judson Redwood Grove, about 0.5 air miles E of Higgins Canyon Road, Purisima Creek Redwoods Open Space Preserve, W slope of Santa Cruz Mountains; San Francisco Bay (SnFrB) 165 Comment
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Jan 26 2018
  CAS-BOT-BC117641  Carex serratodens LeRoy Abrams 1902-5-1 2425 San Mateo Woodside. Comment
  SEINET7575205 Image available Carex serratodens Wilhelm Suksdorf 1913-6-22 248 San Mateo Crystal Springs Lake. Comment
  JROH4362  Carex subbracteata John Rawlings 2010-5-19 1053 San Mateo Jasper Ridge Biological Preserve, Stanford University. At west edge of California semaphore grass vernal depression. 122 Comment
  SEINET4152292  Carex subbracteata Unknown 1938-5-1 13782 San Mateo Near south San Francisco Comment
  UC836144  Carex subbracteata John Thomas Howell 1938-5-1 13778 San Mateo near South San Francisco Comment
  CAS-BOT-BC116825  Carex subbracteata var. subbracteata George Thomas Oberlander 1950-4-22 633 San Mateo Marsh, Pilarcitos Canyon Comment
  CAS-BOT-BC116827  Carex subbracteata var. subbracteata W. R. Dudley 1908-6-26 s.n. San Mateo Edge of Pond, near Coal Mine Ridge Road. Comment
  CAS-BOT-BC116834  Carex subbracteata var. subbracteata Elmer Ivan Applegate 1895-3-3 778 San Mateo Unspecified Comment
  CAS-BOT-BC115511  Carex tumulicola W. R. Dudley 1910-5-26 s.n. San Mateo Coal Mine Ridge near Black Mountain Comment
  CAS-BOT-BC176395  Carex tumulicola Peter Rubtzoff 1975-5-21 7974 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  RSA119340  Carex tumulicola S. S. Tillett, I. Sternback 1956-6-25 543 San Mateo On Middleton property S of road to Portola State Park, just before entrance; in secondary redwood forest. 396 Comment
  CHSC39844  Carpobrotus Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  RSA10376B  Castilleja affinis H. A. Barker 1926-5-1 606 San Mateo Kings Mt. Comment
  CAS-BOT-BC249190  Castilleja affinis W. R. Dudley 1896-4-19 s.n. San Mateo Santa Cruz Peninsula. Above Alpine School House, Alpine Comment
  JEPS47391  Castilleja affinis subsp. affinis L. R. Heckard 1964-6-24 1402 San Mateo e of Upper Crystal Springs Reservoir (near upper end) Comment
  JROH3948  Castilleja affinis subsp. affinis John Hunter Thomas 1981-5-25 20644 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA41346  Castilleja affinis subsp. affinis T. I. Chuang 1991-7-2 7878 San Mateo Mussel Rock. 0 Comment
  SJSU910  Castilleja ambigua J. W. Tilden 1946-7-15 1004 San Mateo Pescadero Comment
  CHSC1812  Castilleja ambigua subsp. ambigua M. Barkowski 1930-4-29 San Mateo Moss Beach. Comment
  POM21102  Castilleja ambigua subsp. ambigua Alice Eastwood 1912-6-2 208 San Mateo Granada. Comment
  UC1012400  Castilleja ambigua subsp. ambigua F. W. Pennell and D. D. Keck 1940-5-15 25427 San Mateo Burlingame; Routh 101 0 Comment
  HSC34849  Castilleja densiflora Thomas W. Nelson 1975-5-8 1808 San Mateo Beside Hwy. 280 S of San Francisco Comment
  JEPS127791  Castilleja densiflora subsp. densiflora Adam C. Schneider with C. Matt Guilliams 2013-4-7 62 San Mateo Along dirt road running parallel to overhead power transmission lines. GPS coordinates approximate. Comment
  JROH3980  Castilleja densiflora subsp. densiflora John Hunter Thomas 1978-4-25 19149 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1012312  Castilleja densiflora subsp. densiflora F. W. Pennell and D. D. Keck 1940-5-15 25425 San Mateo 4 mi w Burlingame (Route 101) 152 Comment
  JEPS19403  Castilleja densiflora subsp. densiflora G. Thomas Robbins 1937-4-11 113 San Mateo above Redwood City Comment
  JROH5758  Castilleja densiflora subsp. densiflora M. Ray 1982-4-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Searsville Lab. Comment
  UC1063459  Castilleja exserta H. S. Yates 1935-5-8 5204 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. 579 Comment
  POM15341B  Castilleja exserta subsp. latifolia Copeland 1903-6-3 3298 San Mateo Montara Point. Comment
  CAS-BOT-BC243826  Castilleja latifolia Katharine Brandegee 1917-7-29 s.n. San Mateo Tunitas Station, Ocean Shore R.R. Comment
  UCR240614  Castilleja lithospermoides T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3522 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  JROH3997  Castilleja rubicundula subsp. lithospermoides D. E. Breedlove 1971-5-31 19360 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH4008  Castilleja rubicundula subsp. lithospermoides John Hunter Thomas 1986-5-8 24024 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS103884  Castilleja subinclusa T. I. Chuang and F. M. Chuang 1991-7-1 7850 San Mateo 0.8 miles N of San Gregorio Beach. Comment
  JEPS85202  Castilleja subinclusa subsp. franciscana Roy E. Buck and James A. West 1986-8-17 553 San Mateo ca 3.2 air km ene Franklin Point (Cascade Ranch, just s of Whitehouse Canyon Road, next drainage s of Whitehouse Creek drainage, on both sides of old ranch road) 106 Comment
  UC311191  Castilleja subinclusa subsp. franciscana A. D. E. Elmer May 1903 4527 San Mateo San Bruno Hills Comment
  JEPS18909  Castilleja subinclusa subsp. franciscana Rimo Bacigalupi with G. Thomas Robbins 1955-8-4 5452 San Mateo just w Crystal Springs Lake, upper south lake (along Skyline Blvd (Calif Hwy 5), 3.2 mi n of its junction with the Kings Mtn. road (not the La Honda road)) 594 Comment
  JEPS21809  Castilleja wightii Alvin W. Urquhart 1958-4-20 36 San Mateo n of Pomponio Creek (along State Hwy 1) 124 Comment
  JEPS34323  Castilleja wightii L. R. Heckard, and Rimo Bacigalupi 1963-7-2 1328 San Mateo 500 ft se San Pedro Valley (town) (slopes above South Fork of San Pedro Creek, near home of John Gay) Comment
  JEPS6924  Castilleja wightii Rimo Bacigalupi with G. Thomas Robbins 1954-6-18 4557 San Mateo 3.3 mi s Pescadero (along Calif Hwy 1, road bank just s of bridge across Arroyo de los Frijoles) Comment
  JEPS8516  Castilleja wightii Elsie M. Zeile 1925-3-22 San Mateo Colma Canyon Comment
  JEPS86182  Castilleja wightii L. R. Heckard 1988-5-18 6676 San Mateo ca 0.5 mi s Skyline Blvd. junction with Route 92 to Half Moon Bay Comment
  RSA505397  Castilleja wightii R. C. Bacigalupi, G. Thomas Robbins 1955-8-4 5451 San Mateo Along Skyline Blvd. (Calif. Highway No. 5) just west of Crystal Springs Lake (south lake); at a point 6.2 miles north of the junction with Kings Mtn. (not the La Honda) road. 396 Comment
  RSA523428  Castilleja wightii L. R. Heckard, R. C. Bacigalupi 1963-7-2 1328 San Mateo Near home of John gay. Slopes above S. Fk. of San Pedro Creek. SE of town of San Pedro Valley. 152 Comment
  JROH1527  Caulanthus lasiophyllus John H. Thomas 1971-4-10 15759 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1531  Caulanthus lasiophyllus John Rawlings, Ann Lambrecht 2010-5-5 1098 San Mateo Jasper Ridge Biological Preserve, Stanford University; open area up-slope side of the long, straight stretch of Trail 9 158 Comment
  CAS-BOT-BC39383  Caulanthus lasiophyllus Paul Arnaud 1941-5-3 s.n. San Mateo Redwood City, Jefferson Avenue. Comment
  CAS-BOT-BC39384  Caulanthus lasiophyllus Walter Knight; Irja Knight 1965-5-9 1103 San Mateo San Bruno Mountains. Devil's Arroyo. Comment
  CAS-BOT-BC47931  Ceanothus Fred Hemphill 1973-4-15 675 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  UC79930  Ceanothus Katharine Brandegee April 1889 65 San Mateo San Gregorio Comment
  JROH3518  Ceanothus cuneatus var. cuneatus L. R. Abrams 1914-3-1 5057 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI10552  Ceanothus cuneatus var. cuneatus Lewis S. Rose 1964-3-23 64011 San Mateo Emerald Lake, W of Redwood city 122 Comment
  POM285184  Ceanothus cuneatus var. dubius Arthur L. Cohen 1935-4-21 613 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  CAS-BOT-BC51598  Ceanothus oliganthus var. sorediatus W. R. Dudley 1899-5-14 s.n. San Mateo Baden Brook Hills Comment
  UC774510  Ceanothus oliganthus var. sorediatus Carl B. Wolf 1941-7-31 11113 San Mateo 1 mi e summit La Honda Grade; Santa Cruz Mts., summit of La Honda Grade 396 Comment
  CAS-BOT-BC63456  Ceanothus palmeri A. D. E. Elmer 1903-5-1 4479 San Mateo Portola. Comment
  CAS-BOT-BC51237  Ceanothus papillosus David D. Keck 1932-5-11 1774 San Mateo East side of Kings Mountain, on Kings Mountain Road 502 Comment
  RSA77705  Ceanothus papillosus D. D. Keck 1932-5-11 1774 San Mateo E side of Kings Mtn, on Kings Mtn road. 503 Comment
  POM136268  Ceanothus papillosus var. roweanus Stewart H. Burnham 1894-4-29 1577 San Mateo Above woodside. Comment
  CAS-BOT-BC52276  Ceanothus thyrsiflorus Javier Penalosa 1963-3-9 2695 San Mateo Ravine 1/2 mi. east of 1314 ft. summit 304 Comment
  CAS-BOT-BC52282  Ceanothus thyrsiflorus Elizabeth McClintock 1972-5-10 s.n. San Mateo East of Kamchatka Point Comment
  CAS-BOT-BC52286  Ceanothus thyrsiflorus Brandegee 1890-4-1 19 San Mateo San Gregorio Comment
  CAS-BOT-BC52307  Ceanothus thyrsiflorus Josephine D. Randall 1907-7-23 321 San Mateo near Crystal Springs Lake Comment
  CAS-BOT-BC52312  Ceanothus thyrsiflorus J. I. McMurphy 1906-5-8 12 San Mateo Woodside, Santa Cruz Mts. 121 Comment
  SD37640  Ceanothus thyrsiflorus var. griseus Edith A. Purer 1933-5-5 3601 San Mateo Alpine Road Comment
  JEPS21637  Centaurea calcitrapa John H. Thomas 1955-4-6 4831 San Mateo e facing slope of San Bruno Mountain, just n of South San Francisco San Bruno Mountain, South San Francisco 30 Comment
  JROH594  Centaurea calcitrapa John Hunter Thomas 1989-5-9 24702 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA35517  Centaurea calcitrapa Ed Finley 1986-9-3 s.n. San Mateo Near Pilarcitos Lake. 0 Comment
  UC1925872  Centaurea calcitrapa Ethel Crum 1930-10-26 930 San Mateo San Francisco Peninsula Comment
  UCD23437  Centaurea cyanus Alan T. Whittemore 1976-5-31 s.n. San Mateo Pescadero Road. About 2 miles east of Pescadero. Comment
  JROH607  Centaurea solstitialis John Hunter Thomas 1982-6-7 21027 San Mateo Jasper Ridge Biological Preserve, Stanford University; old sandy beach Comment
  CAS-BOT-BC277229  Centaurea solstitialis Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  SEINET8730776 Image available Centaurium exaltatum Lewis S. Rose 1941-1 41280 San Mateo Kings Mountain Rd, 3 miles west of Woodside 183 Comment
  UCSC005474  Centaurium muehlenbergii Randall Morgan 1998-7-28 3329 San Mateo N stretch of Stage Road off Hwy 1 Comment
  UC35457  Centaurium trichanthum W. C. Blasdale 1893-6-17 San Mateo Belmont Comment
  CAS-BOT-BC272818  Centromadia parryi subsp. parryi W. R. Dudley 1908-10-4 s.n. San Mateo Near Laguna Salada Comment
  JEPS44407  Centromadia pungens subsp. pungens Lewis S. Rose 1965-9-20 65106 San Mateo Trousdale Dr. and California Dr.; Burlingame 9 Comment
  OBI16134  Centromadia pungens subsp. pungens Lewis S. Rose 1965-9-20 65106 San Mateo Blurlingame, Trousdale Dr. & Calif dr. 9 Comment
  SBBG35987  Centromadia pungens subsp. pungens L. S. Rose 1965-9-20 San Mateo Burlingame, Trousdale Dr and California Drive 9 Comment
  CAS-BOT-BC388388  Cerastium glomeratum A. D. E. Elmer 1903-4-1 4473 San Mateo San Bruno Hills Comment
  CAS-BOT-BC166933  Cerastium holosteoides Peter Rubtzoff 1977-11-24 9141 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  JROH152  Ceratophyllum demersum John Hunter Thomas 1981-7-12 20712 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC400167  Ceratophyllum demersum James McMurphy 1905-10-29 s.n. San Mateo Lake above Portola Comment
  JROH3620  Cercocarpus betuloides var. betuloides John H. Thomas 1961-6-14 9541 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA10407  Chenopodium murale C. B. Wolf 1927-6-15 2167 San Mateo Along Skyline Drive, 8 mi. S of San Francisco. Comment
  JROH1826  Chenopodium rubrum var. humile John Hunter Thomas 1980-11-27 20190 San Mateo Jasper Ridge Biological Preserve, Stanford University; delta Comment
  JROH5858  Chenopodium rubrum var. humile Toni Corelli 2003-11-29 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; dry lake bed, Corte Madera Creek delta Comment
  JROH1829  Chenopodium vulvaria Ann Lambrecht, Carol Zabel 2005-8-24 19 San Mateo Jasper Ridge Biological Preserve, Stanford University; Bear Creek crossing, east bank Comment
  RSA133889  Chlorogalum pomeridianum var. pomeridianum John H. Thomas 1958-6-11 7222 San Mateo About 4.3 miles due E of Belmont near Crystal Springs Reservoir. 91 Comment
  CAS-BOT-BC246318  Chloropyron maritimum subsp. palustre L. R. Abrams 1914-7-16 5124 San Mateo Cooley's Landing on San Francisco Bay Comment
  CDA33536  Chondrilla juncea John Beall 2010-6-21 PDR# 1621666 San Mateo San Carlos, city block of El Camino Real, Olive Street, Arroyo St, & Laurel Street. 0 Comment
  NY285629  Chorizanthe cuspidata var. marginata A. D. E. Elmer 05 1903 4828 San Mateo San Pedro Comment
  RSA126149  Chrysanthemum segetum Peter H. Raven 1950-4-30 1971 San Mateo along streets, Montara 24 Comment
  JROH2581  Cicendia quadrangularis John H. Thomas 1958-5-10 7154 San Mateo Jasper Ridge Biological Preserve, Stanford University. Growing in grassy openings among oaks to the north of the top of the ridge. Comment
  CAS-BOT-BC285236  Cichorium intybus J. H. Thomas 1954-5-28 4229 San Mateo Redwood City. Near intersection of Bayshore and Main St. Comment
  CAS-BOT-BC277882  Cirsium brevistylum Fred Hemphill 1973-5-14 825 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC277891  Cirsium brevistylum Peter H. Raven 1957-6-24 968 San Mateo 0.6 miles s. of San Gregorio Beach Comment
  SEINET3383254 Image available Cirsium fontinale Lewis S. Rose 1933-6-9 33223 San Mateo Crystal Springs Lake Springs. Comment
  SJSU2901  Cirsium fontinale var. fontinale G. E. Pilz 1965-8-3 156 San Mateo E side Crystal Springs Reservoir in outer S Coast Ranges 121 Comment
  UC922267  Cirsium fontinale var. fontinale H. K. Sharsmith 1937-6-3 3952 San Mateo about 3 mi w of San Mateo; Crystal Springs Lake 152 Comment
  CAS-BOT-BC285672  Cirsium occidentale var. occidentale A. A. Heller 1906-6-8 8379 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks Comment
  CAS-BOT-BC280135  Cirsium occidentale var. venustum John Thomas Howell 1939-6-16 14747 San Mateo Kings Mt. Comment
  UC917253  Cirsium occidentale var. venustum W. A. Harvey and J. M. Tucker 1948-6-29 1708 San Mateo just w junction with Highway 5 (Skyline Boulevard) (beside road to Portola State Park); ; <State route 5 became state route 35> Comment
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Sep 8 2011
  CAS-BOT-BC280508  Cirsium quercetorum John H. Thomas 1955-4-6 4850 San Mateo East facing slope of San Bruno Mountain just north of South San Francisco 91 Comment
  CAS-BOT-BC280509  Cirsium quercetorum John H. Thomas 1961-5-14 9378 San Mateo Just north of dam on San Mateo Creek 121 Comment
  JEPS89476  Cirsium quercetorum Dean W. Taylor 1989-8-1 10416 San Mateo Montara State Beach along Highway 1 at junction with road to North Peak of Montara Mountain Montara State Beach; Santa Cruz Mountains, , Hwy 1 67 Comment
  UC178910  Cirsium quercetorum Katharine Brandegee 1905-1 San Mateo Moss Beach Comment
  CAS-BOT-BC280515  Cirsium quercetorum Alice Eastwood 1922-5-28 11327 San Mateo Granada Comment
  UC1536828  Clarkia amoena Gordon H. True Jr. 1936-6-14 509 San Mateo Skyline-Salada Beach Road 365 Comment
  UC58847  Clarkia purpurea subsp. quadrivulnera J. Burtt Davy 1893-6-17 792 San Mateo Belmont Comment
  CAS-BOT-BC163977  Clarkia purpurea subsp. quadrivulnera W. R. Dudley 1894-7-7 s.n. San Mateo Summit of Bear Gulch Comment
  CAS-BOT-BC164564  Clarkia purpurea subsp. viminea Ned Cahill 1974-4-29 208 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC165124  Clarkia rubicunda J. H. Thomas 1953-7-25 3504 San Mateo About 200 yards north of Pigeon Pt. Light House Comment
  CAS-BOT-BC165145  Clarkia rubicunda Phillip Wheeler 1965-6-7 s.n. San Mateo Buckeye Canyon Comment
  CAS-BOT-BC165152  Clarkia rubicunda Daniel Cohen 1953-6-3 106 San Mateo Los Trancos Woods Comment
  CAS-BOT-BC165164  Clarkia rubicunda Peter H. Raven 1957-6-30 11014 San Mateo 1.8 miles east of Pescadero on road along Pescadero Creek Comment
  CAS-BOT-BC165173  Clarkia rubicunda W. R. Dudley 1902-9-21 s.n. San Mateo Near Crystal Springs Reservoir Comment
  CAS-BOT-BC165176  Clarkia rubicunda H. A. Dutton 1900-4-17 s.n. San Mateo Woodside Comment
  JROH3027  Clarkia rubicunda John Hunter Thomas 1982-7-2 21048 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1279894  Clarkia rubicunda Peter H. Raven 1957-6-20 10955 San Mateo hills above se end Lake San Andreas Comment
  UC1279951  Clarkia rubicunda Peter H. Raven 1957-6-30 11012 San Mateo near bridge Tunitas Creek (along State Highway 1) Comment
  CAS-BOT-BC165135  Clarkia rubicunda Peter H. Raven 1957-7-4 11044 San Mateo State Highway 9, 2.7 miles south-west of junction with State Highway 5 Comment
  CAS-BOT-BC165137  Clarkia rubicunda Robert Setzer 1969-7-18 3366 San Mateo Montara Beach Comment
  RSA15204  Clarkia rubicunda Carl B. Wolf 1926-10-19 86 San Mateo West of La Honda; Santa Cruz Mountains Comment
  RSA41288  Clarkia rubicunda Robert F. Hoover 1941-5-20 5108 San Mateo Redwood City hills Comment
  SD56674  Clarkia rubicunda Darley F. Howe 1963-7-31 3648 San Mateo 3 miles North of Pacifica on #1, on sea bluff. Comment
  SJSU11020  Clarkia rubicunda P. L. Rucker 1963-7-20 San Mateo Alpine Rd Comment
  UC306526  Clarkia unguiculata A. D. E. Elmer June, 1903 4293 San Mateo Alpine School House Comment
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Oct 6 2011
  CAS-BOT-BC439289  Claytonia exigua subsp. exigua L. R. Abrams 1904-4-10 s.n. San Mateo Santa Cruz Mountain Peninsula. Road from Woodside to Crystal Springs near junction of Redwood City Road. Comment
  UCSC007733  Claytonia parviflora Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH3338  Claytonia parviflora subsp. parviflora John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC7902  Claytonia parviflora subsp. parviflora J. Burtt Davy 1893-6-17 793 San Mateo Belmont Comment
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Sep 4 2011
  RSA117677  Claytonia perfoliata S. S. Tillett 1956-6-25 552 San Mateo Redwood, on Skyline Drive. 655 Comment
  RSA276897  Claytonia perfoliata subsp. mexicana J. M. Miller 1977-3-23 590 San Mateo Purisimo Canyon, 1.4 miles E of Hwy 1 on Purisimo Canyon Road. Comment
  JROH3353  Claytonia perfoliata subsp. perfoliata John Hunter Thomas 1988-4-6 24371 San Mateo Jasper Ridge Biological Preserve, Stanford University; road near dam Comment
  CAS-BOT-BC443658  Claytonia perfoliata subsp. perfoliata Catherine A. Toschi 1963-3-17 63 -48 San Mateo East slope San Bruno Mountains below radio station 213 Comment
  CAS-BOT-BC91483  Clematis lasiantha J. I. McMurphy 1906-4-30 20 San Mateo Santa Cruz Peninsula. Santa Cruz Mountains. Portola Valley. Comment
  CAS-BOT-BC91484  Clematis lasiantha L. R. Abrams 1914-4-2 5076 San Mateo Woodside. Comment
  JROH3402  Clematis lasiantha Daniel Cohen 1953-4-11 19 San Mateo Jasper Ridge Biological Preserve, Stanford University. About 1/3 of the way up Jasper Ridge road Comment
  JROH3405  Clematis lasiantha John H. Thomas 1958-5-10 7160 San Mateo Jasper Ridge Biological Preserve, Stanford University. Chaparral at west end of ridge Comment
  JROH3417  Clematis lasiantha John Hunter Thomas 1985-4-11 23519 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC92558  Clematis ligusticifolia Josephine D. Randall 1907-6-6 306 San Mateo Santa Cruz Peninsula. Los Trancos Road near Stanford University. Comment
  JROH2873  Clinopodium douglasii John H. Thomas 1970-1-1 15499 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2878  Clinopodium douglasii John Hunter Thomas 1977-6-16 18742 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD27837  Clintonia andrewsiana Carl B. Wolf 1929-5-25 3736 San Mateo 2 miles from Pescadero, on Alpine Creek. Comment
  CAS-BOT-BC499369  Clintonia andrewsiana W. R. Dudley 1915-9-1 s.n. San Mateo El Corte de Madera Creek Comment
  CAS-BOT-BC499371  Clintonia andrewsiana K. Hofpaugh 1929-5-11 210 San Mateo Redwood forest 3 miles east of La Honda Comment
  SEINET12047074  Clintonia andrewsiana F. H. Utech, Utech, C. L. 1972-1 72 -601 San Mateo road between Pescadero and La Honda, ca 2.5 mi before the junction with CA 84 183 Comment
  RSA104881  Collinsia heterophylla E. F. Sprague 1956-5-28 s.n. San Mateo 2 miles below Skyline Drive on E. La Honda Road. Comment
  CAS-BOT-BC240920  Collinsia multicolor Elizabeth McClintock 1965-3-21 s.n. San Mateo San Bruno Mountain. On north side of mountain 1/2 mi. east of Brisbane power lines Comment
  CAS-BOT-BC240928  Collinsia multicolor Reed C. Rollins 1941-3-22 2953 San Mateo San Bruno Hills, 2 miles southeast of Daly City Comment
  JEPS17741  Collinsia multicolor A. Paul Martin 1957-5-23 San Mateo San Bruno Hills, at upper edge of town of Brisbane Brisbane; San Bruno Hills, Brisbane 198 Comment
  UC765656  Collinsia multicolor R. F. Hoover 1941-4-23 4901 San Mateo San Mateo Creek below Crystal Springs Dam Comment
  CAS-BOT-BC240929  Collinsia multicolor W. R. Dudley 1906-5-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Hills S.W. of San Mateo Comment
  JROH4019  Collinsia sparsiflora var. collina John H. Thomas 1976-4-3 18078 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS26835  Collomia heterophylla Rimo Bacigalupi with L. R. Heckard 1961-5-14 7698 San Mateo in canyons of creek about 3/4 mi below and se Stone Dam Reservoir (w base of ridge); Pilarcitos Creek, Cahill Ridge 152 Comment
  POM132599  Conioselinum gmelinii A. D. E. Elmer 1900-04 2289 San Mateo San Bruno Mountain Comment
  JROH1854  Convolvulus arvensis John Hunter Thomas 1987-5-19 24298 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5547340  Convolvulus arvensis H. S. Gentry 1931-1 94 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  IRVC9058  Corallorhiza maculata P. W. Rundel 1963-7-7 1145 San Mateo San Francisco Bay drainage area; Kings Mtn Road; woodside. Santa Cruz Mountains 305 Comment
  LA209069  Cordylanthus pilosus subsp. hansenii L. S. Rose; 1941-8-9 41362 San Mateo Woodside 60.0 Comment
  JEPS20324  Cordylanthus pilosus subsp. pilosus Lewis S. Rose 1941-8-9 41362 San Mateo Woodside 548 Comment
  CAS-BOT-BC101475  Corethrogyne filaginifolia J. H. Thomas 1958-6-11 7221 San Mateo About 4.3 miles due east of Belmont near Crystal Springs Reservoir 91 Comment
  CAS-BOT-BC101477  Corethrogyne filaginifolia A. A. Heller 1907-5-28 8576 San Mateo Above Crystal Springs on the Half Moon Bay Road Comment
  CAS-BOT-BC101481  Corethrogyne filaginifolia W. R. Dudley 1896-4-6 s.n. San Mateo Near Crystal Springs Comment
  SJSU15948  Corethrogyne filaginifolia John Rawlings, Ken Hickman 2016-5-26 1824 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  SEINET12136511  Cornus californica R. C. Croker 1929-1 69 San Mateo Searsville Lake Comment
  CAS-BOT-BC210359  Cornus sericea Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon Comment
  SEINET3407584 Image available Cornus sericea Lewis S. Rose 1939-5-5 39094 San Mateo San Mateo Canyon. 46 Comment
  CAS-BOT-BC210468  Cornus sericea subsp. occidentalis W. R. Dudley 1895-6-8 s.n. San Mateo Santa Cruz Peninsula. Pescadero Creek at Camp near Iverson's Comment
  JROH1868  Cornus sericea subsp. sericea John Hunter Thomas 1981-5-5 20536 San Mateo Jasper Ridge Biological Preserve, Stanford University; low flow crossing Comment
  JROH1873  Cornus sericea subsp. sericea John Hunter Thomas 1983-4-21 21643 San Mateo Jasper Ridge Biological Preserve, Stanford University; along causeway Comment
  JROH1878  Cornus sericea subsp. sericea John Hunter Thomas 1987-5-26 24311 San Mateo Jasper Ridge Biological Preserve, Stanford University; along causeway Comment
  CAS-BOT-BC180280  Corylus cornuta subsp. californica Robert Setzer 1969-3-29 2137 San Mateo Colma Canyon along stream bank. San Bruno Mountain Comment
  CAS-BOT-BC180359  Corylus cornuta subsp. californica George Oberlander 1950-2-1 415 San Mateo Sawyer Ridge. San Francisco Watershed Reserve Comment
  CAS-BOT-BC180375  Corylus cornuta subsp. californica Walter Knight; Irja Knight 1964-9-2 61 San Mateo On Mouth of Colma Canyon. San Bruno Mountain Comment
  SJSU281  Corylus cornuta subsp. californica H. W. Marion 1936-3-8 San Mateo 1 mi NE of Searsville L Comment
  POM270408  Corylus cornuta var. californica Lyman Benson 1937-7-15 8455 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains; San Francisco Bay watershed. 244 Comment
  RSA101050  Corylus cornuta var. californica G. Oberlander 1950-2-1 415 San Mateo Sawyer Ridge, San Francisco Watershed Reserve. Comment
  SEINET12034013  Corylus rostrata var. californica Unknown 1930-1 7313 A San Mateo Los Francoo Woods Comment
  CAS-BOT-BC453502  Cotoneaster lacteus Elizabeth McClintock; Paul Reeberg 1988-6-7 s.n. San Mateo Guadalups Parkway; San Bruno Mountains Comment
  SEINET7876341 Image available Cotoneaster lacteus A. T. Whittemore 2001-1 01 -019 San Mateo Garden of 418 Hillway Dr., Redwood City. 98 Comment
  JROH3635  Cotoneaster pannosus John H. Thomas 1974-10-12 17622 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC287300  Cotula australis John H. Thomas 1965-4-29 10609 San Mateo San Bruno Mt in N part of county 396 Comment
  CAS-BOT-BC287308  Cotula australis Peter H. Raven 1951-2-8 2731 San Mateo Summit ridge, San Bruno Mts Comment
  JROH660  Cotula coronopifolia John Hunter Thomas 1981-4-5 20270 San Mateo Jasper Ridge Biological Preserve, Stanford University; on dam Comment
  JROH663  Cotula coronopifolia John Hunter Thomas 1982-11-6 21198 San Mateo Jasper Ridge Biological Preserve, Stanford University; along edge of Searsville Lake delta Comment
  CAS-BOT-BC291470  Cotula coronopifolia R. Bacigalupi 1941-10-22 2747 San Mateo Very close to the San Francisco - San Mateo County Line Comment
  SEINET11841252  Cotula coronopifolia E. H. Graham 1931-1 6928 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC427830  Crassula connata John H. Thomas 1958-2-15 6991 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 182 Comment
  CAS-BOT-BC427840  Crassula connata Margaret A. Barry 1937-5-15 129 San Mateo Coal Mine Ridge. Comment
  CAS-BOT-BC427838  Crassula connata Ned Cahill 1975-2-21 407 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  SEINET12216216  Crassula connata E. McClintock, Knight, W.; Knight, I. 1982-1 4631 San Mateo from windy Kamchatka Point, San Bruno Mountain Comment
  JROH3655  Crataegus monogyna John Hunter Thomas 1984-4-24 23299 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC56524  Crepis vesicaria subsp. taraxacifolia Steven Triano 1988-5-24 175 San Mateo Along w side of Sand Hill Road 0.5 mi s of its jct. with Whiskey Hill Road and 2.5 mi s of Woodside. 121 Comment
  JROH665  Crepis vesicaria subsp. taraxacifolia John H. Thomas 1962-6-10 9910 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge Comment
  JROH668  Crepis vesicaria subsp. taraxacifolia John Hunter Thomas 1986-6-7 24082 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA152117  Crocosmia X crocosmiiflora John H. Thomas 1961-8-27 9700 San Mateo Western end of San Bruno Mountain 244 Comment
  JROH1953  Croton setiger John H. Thomas 1958-11-22 7508 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1958  Croton setiger John H. Thomas 1967-11-5 14131 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4986  Crypsis schoenoides John Hunter Thomas 1981-10-25 20763 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta Comment
  UC78495  Cryptantha flaccida C. F. Baker 1902-4-6 468 San Mateo Crystal Springs Lake Comment
  JROH5808  Cryptantha micromeres Herb Dengler 1964-3-29 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. [William] Cooper trail between [plots] #4 & #5 [in the Westridge area, Portola Valley, CA south of the Preserve boundary]. Comment
  JROH1377  Cryptantha microstachys John Hunter Thomas 1978-4-22 19102 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5740  Cryptantha microstachys John Rawlings 2014-5-10 16601660 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Tr. 9 alternate 127 Comment
  CAS-BOT-BC80790  Cupressus macrocarpa J. H. Thomas 1964-6-19 10423 San Mateo About 1/2 mi below Skyline Blvd. on Half Moon Bay Road toward Crystal Springs Reservoir. Comment
  CAS-BOT-BC80787  Cupressus macrocarpa J. H. Thomas 1960-8-28 8832 San Mateo Growing on steep road bank near Skyline Blvd. and Summit Drive to the west of Hillsborough. Comment
  RSA130967  Cuscuta salina S. D. Halsey 1908-9-26 s.n. San Mateo near Cooley's Landing Comment
  CDA5324  Cyclospermum leptophyllum C. M. Sill 1970-7-17 San Mateo Mrs. G. Yuki, 439 Alameda, Redwood City. 0 Comment
  CAS-BOT-BC287333  Cynara cardunculus J. H. Thomas 1958-10-21 7487 San Mateo Near intersection of Bayshore Highway and Main St, Redwood City, near slough Comment
  JROH5591  Cynodon dactylon John Rawlings 2013-4-30 1184 San Mateo Jasper Ridge Biological Preserve, Stanford University; growing at the northeast edge of Rd B, a few meters from the old Boething Nursery Gate 74 Comment
  RSA130413  Cynoglossum grande W. R. Dudley 1896-2-16 s.n. San Mateo Glen Gloaming, branch of Pescadero and Mill Creek near Black Mt. Comment
  RSA176667  Cynoglossum grande P. H. Raven 1964-2-16 18744 San Mateo Just south of Lake San Andreas. Comment
  UC676736  Cynoglossum grande Reed C. Rollins 1941-2-22 2942 San Mateo 8 mi. n.w. Palo Alto Comment
  JROH4381  Cyperus eragrostis John Hunter Thomas 1982-11-6 21205 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta along edge of Searsville Lake. Comment
  RSA132456  Cyperus eragrostis John H. Thomas 1959-8-22 8084 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  CAS-BOT-BC114456  Cyperus eragrostis W. R. Dudley 1908-6-19 s.n. San Mateo Road from Tanforan to Jersey Dairy. Comment
  JROH4392  Cyperus erythrorhizos John H. Thomas 1974-10-29 17643 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  JROH5716  Cyperus erythrorhizos John Rawlings 2015-9-22 1640 San Mateo Jasper Ridge Biological Preserve, Stanford University. In mud of Corte Madera Creek delta near open water 104 Comment
  CAS-BOT-BC113985  Cyperus owanii John Thomas Howell 1966-9-4 s.n. San Mateo In garden of Edgar Kahn, 650 Edgewood Rd, Redwood City. Comment
  JROH23  Cystopteris fragilis John Hunter Thomas 1992-4-23 25153 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Rattlesnake Rocks and along trail to redwoods Comment
  SBBG67105  Cytisus scoparius S. W. Hutchinson -Apr-1927 615 San Mateo La Honda Cyn, near Redwood City 152 Comment
  CAS-BOT-BC198212  Cytisus striatus Elizabeth McClintock; Paul Reeberg 1988-3-15 s.n. San Mateo Olivet Ravine, San Bruno Mountains Comment
  CAS-BOT-BC189820  Dactylis glomerata Elizabeth McClintock; Paul Reeberg 1989-8-31 s.n. San Mateo San Bruno Mountains. Along Old Guadalupe Trail. Comment
  CAS-BOT-BC192237  Danthonia californica A. D. E. Elmer 1903-6-1 4707 San Mateo Crystal Springs Lake Comment
  JROH5042  Danthonia californica John Hunter Thomas 1982-5-18 20935 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1903  Datisca glomerata John H. Thomas 1961-6-14 9543 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  HSC23959  Daucus pusillus Mary Katherine Wicksten 1971-6-24 120 San Mateo Huddart Park, side of park entrance Comment
  OBI48631  Deinandra corymbosa Lewis S. Rose 1937-8-29 37644 San Mateo Moss Beach 15 Comment
  SD49785  Deinandra corymbosa J. H. Thomas 1959-8-16 8067 San Mateo About 2 miles north of Pigeon Point along the coast. 14 Comment
  UC481024  Deinandra corymbosa Katharine Brandegee 1908-8-1 San Mateo Montana Point Comment
  UC935705  Deinandra corymbosa David D. Keck 1931-10-5 1295 San Mateo 1.5 mi s Half Moon Bay road (Skyline Boulevard, summit of Cahil Ridge); Cahil Ridge 450 Comment
  UC990592  Deinandra corymbosa James I. McMurphy 1907-8-6 San Mateo between Woodside and Crystal Springs Comment
  OBI39574  Deinandra corymbosa E. H. Graham 1931-7-24 6924 San Mateo Ano Nuevo Point Comment
  UC406882  Deinandra corymbosa David D. Keck 1927-6-10 396 San Mateo Comment
  CAS-BOT-BC299204  Deinandra corymbosa subsp. corymbosa James I. McMurphy 1906-11-17 2 San Mateo Portola Comment
  CAS-BOT-BC299192  Deinandra corymbosa subsp. corymbosa David D. Keck 1931-10-5 1292 San Mateo Salada Beach beside the golf course Comment
  JROH681  Delairea odorata Cary Tronson 2007-11-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near horse trail along Corte Madera Creek, near the collection site of many-flowered tobacco Comment
  UC311529  Delphinium californicum A. D. E. Elmer July 1903 4548 San Mateo Pilarcitos Stone Dam Comment
  JROH3432  Delphinium californicum subsp. californicum D. E. Breedlove 1971-5-31 19358 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  UC9146  Delphinium decorum subsp. tracyi Geological Survey San Mateo San Bruno Comment
Read comments
Jun 4 2007
  CAS-BOT-BC10292  Delphinium hesperium Elizabeth McClintock 1979-5-28 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  CAS-BOT-BC9870  Delphinium nudicaule Josephine D. Randall 1907-6-29 312 San Mateo Kings Mountain road. Comment
  SBBG28536  Delphinium nudicaule W. R. Dudley 1893-5-27 San Mateo beyond King's Mtn Comment
  CAS-BOT-BC116524  Delphinium patens subsp. patens J. H. Thomas 1954-5-7 4067 San Mateo Near Skyline Blvd. about 2 miles SW of Black Mountain 655 Comment
  JROH3452  Delphinium patens subsp. patens John H. Thomas 1972-4-1 16050 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET3075261 Image available Delphinium variegatum C. W. Sharsmith 1951-4-6 5825 San Mateo Woodside Hills, 3 miles west of Woodside. 180 Comment
  CAS-BOT-BC7892  Delphinium variegatum H. Paul Arnaud 1941-5-3 s.n. San Mateo Jefferson Avenue, Redwood City Comment
  CAS-BOT-BC7932  Delphinium variegatum A. J. Ward Hornby 1952-5-10 113 San Mateo In hills behind Searsville Lake 426 Comment
  CAS-BOT-BC33190  Delphinium variegatum subsp. variegatum David Daniels Keck 1933-5-11 2309 San Mateo Crystal Springs Lake. Comment
  SBBG33499  Delphinium variegatum subsp. variegatum A. D. E. Elmer -May-1903 4796 San Mateo Crystal Springs Lake Comment
  SEINET11676625  Deschampsia cespitosa subsp. holciformis H. E. Wieser 1932-1 s.n. San Mateo hills back of Burlington on Hillside Drive Comment
  POM207175  Deschampsia holciformis E. B. Copeland 1903-6-10 3305 San Mateo Montara Point. Comment
  SEINET10527676  Deschampsia holciformis Edwin B. Copel 1903-6-10 Copeland 3305 San Mateo Montara Point. Comment
  CAS-BOT-BC901  Dicentra chrysantha George T. Ruddock Sept 1917 s.n. San Mateo San Carlos Peak Comment
  CAS-BOT-BC905  Dicentra chrysantha Mrs. Ernest Meiere 1916-6-1 s.n. San Mateo Mt. Diablo Comment
  CAS-BOT-BC500928  Dichelostemma capitatum Ned Cahill 1974-4-23 164 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC500929  Dichelostemma capitatum John H. Thomas 1971-5-2 15849 San Mateo Near the intersection of Canada and Edgewood roads, about 4 mi SW of center of Redwood City 304 Comment
  IRVC9053  Dichelostemma capitatum subsp. capitatum P. W. Rundel 1962-4-15 1030 San Mateo La Canada Road; 1 mi. N of Pulgas Water Temple. 122 Comment
  JROH4654  Dichelostemma capitatum subsp. capitatum Elmer I. Applegate 1895-5-11 703 b San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Dam Comment
  CAS-BOT-BC502166  Dichelostemma congestum Fred Hemphill 1973-4-22 730 San Mateo San Carlos. Chaparral area north of Malabar Road and Melendy Drive. 207 Comment
  JROH4663  Dichelostemma congestum John H. Thomas 1976-5-26 18151 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5076  Digitaria sanguinalis H. J. Dengler 1965-8-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. In S.F. Creek bed, a few hundred yards below N. bend, at the Dennis Martin settlement site. 71 Comment
  CAS-BOT-BC150448  Diplacus aurantiacus L. R. Abrams 1915-11-1 5480 San Mateo Searsville Ridge Comment
  CAS-BOT-BC150449  Diplacus aurantiacus Barrett Anderson; Peter Rubtzoff 1988-4-22 3665 San Mateo San Bruno Mountain. Radio Road south of Guadalupe Canyon Parkway 365 Comment
  CAS-BOT-BC150453  Diplacus aurantiacus Ned Cahill 1974-4-30 229 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC150456  Diplacus aurantiacus J. I. McMurphy 1906-5-20 25 San Mateo King's Mt., Santa Cruz Mts. Comment
  JROH1908  Dipsacus sativus John H. Thomas 1964-11-15 10528 A San Mateo Jasper Ridge Biological Preserve, Stanford University; to the northeast of the dam Comment
  CAS-BOT-BC121858  Dirca occidentalis Lewis S. Rose 1964-3-9 64004 San Mateo N end of Crystal Springs Lake 121 Comment
  JROH4206  Dirca occidentalis D. E. Breedlove 1971-5-11 19336 San Mateo Jasper Ridge Biological Preserve, Stanford University. This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  JROH4209  Dirca occidentalis John H. Thomas 1977-2-20 18470 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI78487  Dirca occidentalis Lewis S. Rose 1964-3-9 64004 San Mateo N end of Crystal Springs Lake 122 Comment
  RSA130910  Dirca occidentalis E. K. Balls 1958-7-22 23593 San Mateo North end of Searsville Lake 183 Comment
  RSA169345  Dirca occidentalis L. S. Rose 1964-3-9 s.n. San Mateo North end of Crystal Springs Lake 122 Comment
  RSA195562  Dirca occidentalis John H. Thomas 1967-3-13 12409 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto Comment
  UC1042323  Dirca occidentalis John Thomas Howell 1954-7-8 30012 San Mateo canyon 0.5 mi below Lake Pilarcitos Dam Comment
Read comments
Feb 2 2012
  SEINET12190188  Dirca occidentalis J. H. Thomas 1958-1 6980 San Mateo Jasper Ridge, about 5 SW of Palo Alto 183 Comment
  RSA244344  Disporum hookeri var. hookeri C. W. Tilforth, John Dourley 1973-7-19 933 San Mateo Gazos Creek Road, between Butano and Big Basin State Parks Comment
  CAS-BOT-BC195716  Distichlis spicata W. R. Dudley 1897-10-10 s.n. San Mateo Toward Pilar Pt, north of Half Moon Bay Comment
  UC673409  Dodecatheon clevelandii subsp. patulum Elmer I. Applegate 1895-3-9 324 San Mateo near Woodside; near Woodside Comment
  JROH3383  Dodecatheon hendersonii John H. Thomas 1967-3-26 12416 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1510  Draba verna John Hunter Thomas 1983-4-5 21331 San Mateo Jasper Ridge Biological Preserve, Stanford University; road below dam Comment
  CAS-BOT-BC389714  Drymocallis glandulosa Sharon Rogers 1966-4-23 s.n. San Mateo Area in Crystal Springs watershed, between North and South Gates of Filoli Estate Comment
  CAS-BOT-BC159529  Drymocallis glandulosa var. glandulosa Josephine D. Randall 1907-6-8 339 San Mateo Portola Valley - Santa Cruz Peninsula Comment
  JROH31  Dryopteris arguta Lawrence J. Winship 1974-11-16 21 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH32  Dryopteris arguta John H. Thomas 1976-4-2 18076 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UC474217  Dryopteris arguta H. F. Copeland 1929-7-4 San Mateo La Honda Grade Comment
  UC144384  Dudleya caespitosa B 1903-6-30 3440 San Mateo Pilarcitos Comment
  CAS-BOT-BC410870  Dudleya caespitosa George Oberlander 1950-6-3 1036 San Mateo San Andreas Valley Comment
  CAS-BOT-BC109694  Dudleya farinosa Ira L. Wiggins 1929-7-14 3805 San Mateo Bluffs above Pescadero sand Beach. Comment
  SJSU16065  Dysphania ambrosioides Toni Corelli 2009-9-9 438 San Mateo Half Moon Bay State Beach, in low dunes, Half Moon Bay Comment
  JROH5099  Ehrharta erecta Ann Lambrecht 2003-11-5 7 San Mateo Jasper Ridge Biological Preserve, Stanford University. About 10 m downstream from low flow crossing, N side of stream. 81 Comment
  CAS-BOT-BC112957  Eleocharis macrostachya Rimo Bacigalupi 1922-5-25 s.n. San Mateo Emerald Lake Redwood City. Comment
  CAS-BOT-BC203880  Elymus X hansenii Elizabeth McClintock; Paul Reeberg 1989-5-30 s.n. San Mateo San Bruno Mountains. On east-facing slope below Ridge Trail; Juncus Ravine 182 Comment
  POM295857  Elymus glaucus Lyman Benson 1935-5-5 6541 San Mateo Lake Searsville; Santa Cruz Mt. Range 152 Comment
  SJSU11265  Elymus glaucus S. H. Casey 1980-6-13 1157 San Mateo Los Trancos Woods 609 Comment
  CAS-BOT-BC203680  Elymus glaucus subsp. glaucus Phillip Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Crystal Cave Canyon east of quarry Comment
  CAS-BOT-BC203689  Elymus glaucus subsp. glaucus George Oberlander 1950-5-6 931 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon Comment
  JROH5104  Elymus glaucus subsp. glaucus John H. Thomas 1971-5-30 15979 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15223  Elymus glaucus subsp. virescens Toni Corelli 2011-5-23 705 San Mateo Bean Hollow State Beach, Arroyo de los Frijoles Trail. Coastal bluff top south of Bean Hollow Beach 7 Comment
  UCD62392  Elymus glaucus subsp. virescens August L. Hormay 1932-5-29 San Mateo San Bruno. Comment
  CAS-BOT-BC235211  Elymus multisetus George Oberlander 1950-7-15 1015 San Mateo San Francisco Watershed Reserve. North of San Andreas Lake Comment
  JROH5126  Elymus multisetus John Hunter Thomas 1978-5-16 19218 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5129  Elymus multisetus John Hunter Thomas 1985-5-21 23663 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5134  Elymus multisetus W. Lennihan 1990-4-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Fire road - serpentine - 150 yds from end by farthest live oak clump (8 trees), 1 1/2 yd left of road. Comment
  POM32051  Epilobium canum subsp. canum C. F. Baker 1902-10-20 52 San Mateo Summit of Coast Range Comment
  SJSU802  Epilobium canum subsp. canum M. B. Mirassou 1943-5-10 191 San Mateo near Pigeon Point Comment
  JROH3049  Epilobium ciliatum subsp. ciliatum John H. Thomas 1970-7-5 15659 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18463  Epilobium ciliatum subsp. watsonii Carl B. Wolf 1927-6-29 545 San Mateo South of Pebble Beach near Pescadero. Comment
  UC1122561  Epilobium ciliatum subsp. watsonii H. S. Yates 1935-5-8 5220 San Mateo 2 mi sw Pescadero; Santa Cruz Quadrangle Comment
  SDSU8797  Epilobium ciliatum subsp. watsonii D. F. Howe 1967-8-6 4368 San Mateo Swamp at Half Moon Bay Comment
  JROH3062  Epilobium densiflorum John H. Thomas 1971-8-7 16018 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3075  Epilobium torreyi John H. Thomas 1969-5-28 15091 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4766  Epipactis helleborine Toni Corelli 2006-6-28 313 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 13 along causeway 106 Comment
  JROH5606  Epipactis helleborine John Rawlings, Ann Lambrecht 2011-6-21 1212 San Mateo Jasper Ridge Biological Preserve, Stanford University. Vicinity of an abandoned camper shell near a small drainage west of the switchback zone of the Escobar/Webb Ranch horse trail on north side of ridge. 100 Comment
  CDA39515  Epipactis helleborine C. M. Sill 1975-8-4 s.n. San Mateo Woodside, 439 Glenwood Ave. 0 Comment
  JROH60  Equisetum arvense John Hunter Thomas 1983-5-3 21879 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing Comment
  POM281831  Equisetum arvense Lyman Benson 1930-6-14 2157 San Mateo La Honda, Santa Cruz Mtn range. Redwoods. 244 Comment
  UCSB23419  Equisetum telmateia Masero, Ann 1967-3-21 San Mateo S side of Butano Creek, 3.7 mi E of junction of Cloverdale Road and Canyon Road in Butano Canyon. 131 Comment
  SBBG51402  Equisetum telmateia subsp. braunii J. Doty 1969-3-27 608 San Mateo S side of St Hwy 84, ca. 500 ft W of Bridge No 35-165, ca. 6 mi E of St Hwy 1 Comment
  SJSU1752  Equisetum telmateia subsp. braunii H. B. Johnston 1956-3-28 79 San Mateo Tunitas Creek, Tunitas Road, c.3 mi NE of Tunitas Comment
  RSA15198  Equisetum telmateia var. braunii C. B. Wolf 1926-10-19 75 San Mateo La Honda Grade. Santa Cruz Mtns. Comment
  RSA684684  Equisetum telmateia var. braunii J. Doty 1969-3-27 608 San Mateo S side of State Hwy 84, ca 500 W of Bridge No. 35-165, ca 6 miles E of State Hwy 1. Comment
  SJSU15447  Eragrostis curvula John Rawlings 2009-5-1 1048 A San Mateo This ornamental grass appeared along a short stretch of San Hill Rd. at the entrance to the Horse Park at Woodside. 119 Comment
Read comments
Feb 18 2015
  JROH5147  Eragrostis pectinacea var. pectinacea John Rawlings 2012-7-27 1124 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the NE corner of the Caretaker's Residence by the garden fence and the blackberry bush. 106 Comment
  CAS-BOT-BC299889  Erechtites glomeratus L. R. Abrams 1926-5-26 11218 San Mateo San Bruno Hills near Daly City Comment
  CAS-BOT-BC291243  Erechtites minimus Elizabeth McClintock; Walter Knight; Irja Knight 1963-9-2 s.n. San Mateo San Bruno Mountain. Power Line Ridge Comment
  SEINET7042863  Eremalche rotundifolia A. G. Vestal 1962-3-26 s.n. San Mateo Laguna Salada. San Francisco South quadrangle UTM Zone 10, 545384mE, 4164305mN. Comment
  JROH648  Erigeron canadensis John H. Thomas 1964-11-15 10524 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road at edge of Searsville Lake Comment
  POM55669  Erigeron glaucus C. F. Baker 1902-10-1 1738 San Mateo Pillar Point. Comment
  RSA175148  Erigeron glaucus R. F. Thorne 1963-6-9 32239 San Mateo Top of San Bruno Mountain 335 Comment
  CAS-BOT-BC216132  Eriodictyon californicum Fred Hemphill 1973-4-22 700 San Mateo North of Malabar Road and Melendy Dr., San Carlos 207 Comment
  CDA34113  Eriodictyon californicum D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .153 San Mateo Santa Cruz Mountains; Along Route 9, ~5 km E of Big Basin Redwoods. Comment
  JROH2734  Eriodictyon californicum John Hunter Thomas 1992-7-24 25396 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC24053  Eriodictyon californicum J. Burtt Davy Jun 21 1893-Jun 23 1893 1137 San Mateo Pilarcitos Lake and Canyon Comment
  JROH5904  Eriodictyon californicum M. Ray 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail, west side of Searsville Dam Comment
  SEINET12271679  Eriodictyon californicum J. H. Thomas 1959-1 7667 San Mateo Jasper Ridge, ca 5 mi SW of Palo Alto 152 Comment
  CAS-BOT-BC253242  Eriogonum fasciculatum var. foliolosum Claire Etienne 1973-5-1 s.n. San Mateo Ca. 1 mi. north of Jtn. with Hwy. 84 (to Woodside) on Hwy. 280 Comment
  CAS-BOT-BC251980  Eriogonum latifolium John H. Thomas 1961-5-7 9264 San Mateo San Bruno Mountain in northern part of county. 914 Comment
  CAS-BOT-BC251988  Eriogonum latifolium C. F. Baker 1903-6-30 3359 San Mateo Pilarcitos Comment
  JEPS56786  Eriogonum latifolium William S. Cooper 1925-5-28 10 San Mateo Salada Comment
  UCSB461  Eriogonum latifolium Myrick, Donald 1966-6-11 San Mateo Pigeon Point on Highway #1 south of San Francisco Comment
  CAS-BOT-BC251989  Eriogonum latifolium David D. Keck 1931-10-5 1287 San Mateo One mile north of Salada Beach, 200 m. from ocean on sand dunes Comment
  CAS-BOT-BC264771  Eriogonum luteolum David D. Keck 1931-10-5 1281 San Mateo Dam at north end of Crystal Springs Lake Comment
  CAS-BOT-BC266075  Eriogonum luteolum Ned Cahill 1974-10-8 382 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi westward from Redwood City Comment
  JEPS111093  Eriogonum luteolum Zoe Ellis Chandik 1992-7-14 92 -1 San Mateo Crystal Springs Reservoir, south edge of serpentine (sludge) talus slope, below Hwy 280 on San Francisco Watershed land, 0.1 mi N of Hwy 92 (Ralston Ave.) east of junction with Skyline Blvd 121 Comment
  RSA423120  Eriogonum luteolum L. S. Rose 1937-9-21 37661 San Mateo Emerald Lake, west of Redwood City. 183 Comment
  UCD100310  Eriogonum luteolum Lewis S. Rose 1964-9-9 64073 San Mateo Emerald Lake, west of Redwood City. 243 Comment
  JROH3230  Eriogonum luteolum var. luteolum John H. Thomas 1972-8-18 16146 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA51396  Eriogonum luteolum var. luteolum L. S. Rose 1949-8-14 49164 San Mateo Emerald Lake, hills west of Redwood City. Comment
  UC1206485  Eriogonum luteolum var. luteolum Le Roy Abrams 1902-9-21 2988 San Mateo Crystal Lake - Woodside Comment
  JROH3225  Eriogonum luteolum var. luteolum Duncan M. Porter 1960-10-12 725 San Mateo Jasper Ridge Biological Preserve, Stanford University. Meadow at crest of Ridge above Webb Ranch (area H). Comment
  RSA423118  Eriogonum luteolum var. luteolum E. A. Purer 1933-8-25 s.n. San Mateo Skyline Blvd, on hillside near Schullser tablet Comment
  JEPS128396  Eriogonum nudum var. auriculatum Adam C. Schneider 2013-5-17 142 San Mateo Crystal Springs Reservoir. Comment
  SBBG32420  Eriogonum nudum var. auriculatum L. S. Rose 1964-9-9 67074 San Mateo Emerald Lake, W of Redwood City 243 Comment
  UC54768  Eriogonum nudum var. auriculatum J. Burtt Davy Jun 21 1893-Jun 23 1893 1149 San Mateo Pilarcitos Lake and Canyon Comment
  RSA18381  Eriogonum nudum var. auriculatum Carl B. Wolf 1927-7-1 527 San Mateo Above Emerald Lake, back of Redwood City. Comment
  SEINET11938128  Eriogonum nudum var. auriculatum E. A. Purer 1933-1 5401 San Mateo Along the Bayshore Highway, near Redwood City Comment
  SEINET11938131  Eriogonum nudum var. auriculatum E. A. Purer 1933-1 5401 San Mateo Bayshore Highway near Redwood City Comment
  SD5712  Eriophyllum Ulysses S. Grant IV 1925-6-5 San Mateo Burlingame Comment
Read comments
Jul 10 2010
  CAS-BOT-BC304072  Eriophyllum confertiflorum Fred Hemphill 1973-5-6 776 San Mateo San Carlos. N of Malabar Rd and Melendry Dr 207 Comment
  RSA0056420  Eriophyllum confertiflorum Lewis S. Rose 1933-5-17 s.n. San Mateo Redwood City. Comment
  JROH701  Eriophyllum confertiflorum var. confertiflorum John H. Thomas 1974-6-30 17456 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH715  Eriophyllum confertiflorum var. confertiflorum John Hunter Thomas 1988-6-2 24508 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH723  Eriophyllum lanatum var. arachnoideum John Hunter Thomas 1989-6-17 24774 San Mateo Jasper Ridge Biological Preserve, Stanford University; near San Francisquito Creek Comment
  LA203607  Eriophyllum latilobum Ira L. Wiggins; 1929-7-4 3785 San Mateo 4 mi. W. of La Honda on hill road to Pescadero Beach Comment
  CAS-BOT-BC301977  Eriophyllum staechadifolium Alice Eastwood 1937-7-25 18890 San Mateo Pebble Beach, Pescadero Comment
  JEPS121473  Eriophyllum staechadifolium Adam C. Schneider with Alison Colwell 2013-6-23 292 San Mateo Pacifica State Beach, west of CA State Highway 1. Comment
  CAS-BOT-BC301981  Eriophyllum staechadifolium Ella Dales Cantelow 1940-9-2 3408 San Mateo N. of Davenport Comment
  RSA10281  Eriophyllum staechadifolium H. A. Barker 1927-5-14 653 San Mateo North of Half Moon Bay. Comment
  RSA116669  Eriophyllum staechadifolium W. R. Dudley 1894-3-26 s.n. San Mateo By road from Pescadero to San Gregorio Comment
  RSA479800  Eriophyllum staechadifolium Jerry A. Powell 1972-3-10 909 San Mateo Mt. San Bruno Comment
  SEINET11850780  Eriophyllum staechadifolium var. artemisiaefolium E. A. Purer 1933-1 5395 San Mateo 2 mi S of Pigeon Point Comment
  JROH2592  Erodium botrys John H. Thomas 1968-3-31 14257 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA391777  Erodium botrys D. D. Keck 1932-4-18 1432 San Mateo Mills Field Airport, San Francisco Bay. 2 Comment
  POM259929  Eryngium armatum I. L. Wiggins 1939-8-2 9296 San Mateo Ano Nuevo Point Comment
  SEINET7062816  Eryngium armatum A. G. Vestal 1937-6-15 s.n. San Mateo Pebble Beach west of Pescadero. UTM Zone 10, 551765mE, 4121313mN. (WGS84/NAD83). 0 Comment
  JROH5794  Eryngium jepsonii John Rawlings 2016-6-15 1885 San Mateo Jasper Ridge Biological Preserve, Stanford University. North side of road F, 157 yards east of its intersection with Trail 15 165 Comment
  JROH237  Eryngium jepsonii H. J. Dengler 1968-6-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; in low spot by trail in East Serpentine Comment
  SEINET12005811  Erysimum asperum M. T. Doutt 1931-1 240 San Mateo S of San Francisco Comment
  CAS-BOT-BC54878  Erysimum franciscanum Peter H. Raven 1950-4-16 1781 San Mateo San Bruno Mountains. Colma Canyon. 182 Comment
  CAS-BOT-BC54888  Erysimum franciscanum Mrs. E. C. Sutliffe 1925-3-1 s.n. San Mateo Crystal Springs Lake. Comment
  CDA24853  Erysimum franciscanum D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  RSA101845  Erysimum franciscanum G. B. Rossbach 1939-5-12 913 San Mateo 1.5 miles N of Sharp Park (Salada Beach) Comment
  RSA101846  Erysimum franciscanum G. B. Rossbach 1939-3-26 900 San Mateo 2.5 miles N of Montara near Devil s Slide Comment
  UC1034761  Erysimum franciscanum G. B. Rossbach 1955-3 572 San Mateo high seaward slope 2 mi s San Francisco line (3 mi n of Sharp Park (Salada)) Comment
  UC1034935  Erysimum franciscanum G. B. and R. P. Rossbach 1939-3 901 a&b San Mateo dunes just back of high sea cliff very near Sharp Park Comment
  UC1034936  Erysimum franciscanum G. B. and R. P. Rossbach 1939-5-12 913 San Mateo dunes just back of high sea-cliff 1 1/2 mi n Sharp Park (Salada Beach) Comment
  UC136093  Erysimum franciscanum C. F. Baker 1903-4-6 1885 San Mateo San Bruno Hills Comment
  UC765069  Erysimum franciscanum R. F. Hoover 1941-4-23 4903 San Mateo rocky hill near Crystal Springs Dam Comment
  RSA0001945  Erysimum franciscanum G. B. Rossbach 1955-3-26 572 San Mateo High seaward slope 2 mi. S of San Francisco line & 3 mi. N of Sharp Peak (Salada). Comment
  SD37720  Erythranthe guttata Marie Cummings 1933-5-23 3722 San Mateo Spring Valley Comment
  JEPS51733  Eschscholzia californica Dr. L. M. Newlon 1921-1 245 San Mateo sea shore from Salada to Mussel Comment
  UC2049884  Eschscholzia californica H. W. Johansen 1955-4-3 1 San Mateo Jones Gulch, 5 miles S of La Honda Comment
  CAS-BOT-BC403544  Eschscholzia californica H. L. Mason 1922-4-1 s.n. San Mateo At Pigeon Point Light Comment
  CAS-BOT-BC202733  Euonymus occidentalis William R. Dudley 1895-6-6 4223 San Mateo Pescadero Cr. near Iverson's Comment
  CAS-BOT-BC202736  Euonymus occidentalis Margaret A. Barry 1938-5-29 260 San Mateo Corte Madera Creek near Coal Mine Ridge Comment
  CAS-BOT-BC202743  Euonymus occidentalis G. H. Mallory 1919-8-20 s.n. San Mateo La Honda Comment
  CAS-BOT-BC202746  Euonymus occidentalis W. R. Dudley 1910-5-26 s.n. San Mateo Santa Cruz Mountain Peninsula. Los Trancos Creek, above Judge Allen's Comment
  JROH1798  Euonymus occidentalis var. occidentalis Elmer I. Applegate 1895-5-11 67 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  JROH1804  Euonymus occidentalis var. occidentalis John Rawlings, Paul Heiple 2007-4-11 1026 San Mateo Jasper Ridge Biological Preserve, Stanford University; about 10 meters inside Preserve boundary near its SW corner 115 Comment
  RSA130685  Euphorbia crenulata C. F. (illegible) 1894-3-28 s.n. San Mateo Lobitas road. Comment
  RSA130686  Euphorbia crenulata Roxana S. Ferris 1921-3-20 2114 San Mateo Pescadero - La Honda Road. 183 Comment
  RSA176863  Euphorbia epithymoides John H. Thomas 1964-4-30 10342 San Mateo Palo Alto. San Francisquito Creek at University Avenue bridge. Comment
  CDA19888  Euphorbia oblongata J. Beall 2002-6-3 PDR P 120145 San Mateo San Francisco Bay Area; Pope at San Francisquito Creek. 0 Comment
  JROH5833  Euphorbia oblongata Ann Lambrecht, Teri Barry 2014-5-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; in now-dry bed of San Francisquito Creek Comment
  JROH1974  Euphorbia spathulata John H. Thomas 1974-4-4 17083 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC310620  Eurybia radulina A. D. E. Elmer 1903-7-1 4973 San Mateo Portola Comment
  JROH530  Eurybia radulina Carol Zabel 2005-8-1 54 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC310720  Euthamia occidentalis James McMurphy 1905-10-29 s.n. San Mateo Above Portola Comment
  JROH728  Euthamia occidentalis John H. Thomas 1974-9-19 17600 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bridge Comment
  UC1557839  Euthamia occidentalis J. Semple and S. Heard 1986-8-23 8596 San Mateo 7.5 km N of Santa Cruz Co line on CA-1 Comment
  UCSC007760  Euthamia occidentalis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC239710  Fabaceae W. R. Dudley 1894-3-26 s.n. San Mateo Reservoir, San Mateo Comment
  SJSU6623  Felicia amelloides T. M. Morton 1972-4-1 San Mateo residence 735 Laurelwood Dr, San Mateo Comment
  CAS-BOT-BC183620  Festuca arundinacea Peter Rubtzoff 1976-6-13 8632 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction and northwest of Fog Forest. Comment
  JROH5154  Festuca arundinacea John Hunter Thomas 1982-6-7 21034 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5168  Festuca arundinacea W. Lennihan 1990-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By marsh (also by lab). Comment
  JROH5173  Festuca arundinacea John Rawlings 2008-5-7 1020 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of the conspicuous Danthonia meadow, 150 meters north of main Preserve gate. 121 Comment
  JROH5689  Festuca bromoides John Rawlings 2015-2-21 1281 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 4 on north side of Jasper Ridge 167 Comment
  JROH5947  Festuca bromoides John Rawlings 2017-4-9 1992 San Mateo Jasper Ridge Biological Preserve, Stanford University; path from Field Station to the top of the Dam, 116 Comment
  CAS-BOT-BC278284  Festuca californica Dean Wm. Taylor 1988-4-8 9504 San Mateo Santa Cruz Mountains. San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest. Right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain 237 Comment
  JEPS18167  Festuca californica Rimo Bacigalupi with Galen Smith, L. Dempster, and T. Robbins 1956-5-15 5645 San Mateo first ridge w San Andreas Lake (on road to Pilarcitos Lake) 198 Comment
  JROH5178  Festuca californica W. Lennihan 1990-4-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Eastern draw, 40 yards down. Comment
  SEINET3129197  Festuca californica L. R. Abrams 1902-5-11 2461 San Mateo Capitol springs Comment
  CAS-BOT-BC278354  Festuca californica subsp. californica W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. W. of San Andreas Reservoir Comment
  POM87695  Festuca californica var. californica Le Roy Abrams 1902-5-11 2461 San Mateo Crystal Springs. Comment
  RSA582078  Festuca californica var. californica D. D. Keck 1932-5-11 1499 San Mateo Above Woodside on La Honda Road, east slope of Santa Cruz Mountains Comment
  CAS-BOT-BC278473  Festuca idahoensis L. R. A. 1902-5-11 2450 San Mateo Open ground above La Honda Comment
  SJSU11266  Festuca idahoensis S. H. Casey 1980-6-13 1158 San Mateo Los Trancos Woods 609 Comment
  JROH5486  Festuca microstachys A. G. Vestal 1923-5-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5489  Festuca microstachys S. J. McNaughton 1966-3-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. East slopes of serpentine grasslands in Ehrlich's area H. Comment
  JROH5505  Festuca myuros John Rawlings 2013-4-16 1132 San Mateo Jasper Ridge Biological Preserve, Stanford University. In and along Trail 2 extension south of the Dengler Transect after a short uphill section where the trail passes a boulder on the uphill side. 84 Comment
  CAS-BOT-BC278859  Festuca occidentalis W. R. Dudley 1895-6-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Pescadero Creek Comment
  JROH5284  Festuca perennis John Hunter Thomas 1980-5-1 19911 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5293  Festuca perennis John H. Thomas 1959-8-22 8086 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI21962  Festuca perennis Lewis S. Rose 1956-7-2 56116 San Mateo Skyline Blvd, Hills W of San Mateo 183 Comment
  SD30561  Festuca perennis Edith A. Purer 1933-8-13 5418 San Mateo Santa Clara Valley near Belmont Comment
  JROH5934  Festuca perennis J. Gaither 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Whiskey Hill Gate Entrance Comment
  RSA86699  Festuca rubra D. D. Keck 1932-5-6 1478 San Mateo Above Millbrae Highlands Comment
  POM140686  Fragaria californica C. F. Baker 1902-1-15 233 San Mateo Kings Mountain. West side of King's Mountain. Comment
  RSA10389  Fragaria californica H. A. Barker 1926-5-15 626 San Mateo King Mt. Comment
  JEPS44879  Fragaria chiloensis W. L. Jepson 1921-4-3 9115 San Mateo canyon near Colma Comment
  RSA499458  Fragaria chiloensis E. A. Purer 1933-7-27 5386 San Mateo Two miles south of Pigeon Point. Comment
  CAS-BOT-BC437034  Fragaria chiloensis J. H. Thomas 1949-6-4 576 San Mateo 1.4 miles south of road to Pescadero Comment
  CAS-BOT-BC457532  Fragaria vesca subsp. californica John H. Thomas 1961-5-7 9252 San Mateo San Bruno Mountain in northern part of county, 396 Comment
  CAS-BOT-BC457518  Fragaria vesca subsp. californica James McMurphy 1906-4-30 s.n. San Mateo on top of grade between Portola and Woodside Comment
  CAS-BOT-BC457519  Fragaria vesca subsp. californica Margaret A. Barry 1937-4-21 6 San Mateo woods on Coal Mine Ridge Comment
  CAS-BOT-BC457521  Fragaria vesca subsp. californica C. F. Leitholdt 1893-6-2 s.n. San Mateo Between Woodside and Kings Mountain, Santa Cruz Pennisula Comment
  SEINET11915234  Fragaria vesca subsp. californica L. S. Gill 1930-1 s.n. San Mateo Kuig Mt Comment
  CAS-BOT-BC52681  Frangula californica subsp. californica Elizabeth McClintock 1963-6-9 s.n. San Mateo unspecified Comment
  JROH3541  Frangula californica subsp. californica John H. Thomas 1974-8-11 17509 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3536  Frangula californica subsp. tomentella John H. Thomas 1968-5-22 14459 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC211602  Frankenia salina John Hunter Thomas 1949-10-16 1142 San Mateo Along ocean bluff, just north of outlet of San Gregorio Creek 60 Comment
  UC872058  Frankenia salina Lewis S. Rose 1938-8-18 38230 San Mateo Brisbane 1 Comment
  CAS-BOT-BC223550  Fraxinus latifolia Herman Knoche 1919-10-8 Series A, No. 2488 San Mateo Between Crystal Springs & San Mateo Comment
  JROH4684  Fritillaria affinis John H. Thomas 1971-5-30 15973 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM169607  Fritillaria affinis C. F. Baker 1903-03 5047 San Mateo Crystal Springs Lake. Comment
  UC3641  Fritillaria affinis J. Burtt Davy 1895-4-20 1056 San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC130126  Fritillaria affinis W. R. Dudley 1900-3-17 s.n. San Mateo On side of Ravine above Pillar Pt. and below Montara Mts. Comment
  RSA371591  Fritillaria affinis Thomas S. Elias 1987-4-10 10336 San Mateo Along Canyon Road, north of Butano State Park Comment
  RSA3930  Fritillaria affinis G. C. Kimber, Lucile Roush 1918-4-11 s.n. San Mateo Santa Cruz Mountain peninsula, San Francisquito Creek at foot of Jasper Ridge Comment
  SEINET8501280 Image available Fritillaria affinis L. M. Henry, M. E. Springer 1946-7-21 371 San Mateo La Honda Comment
  CAS-BOT-BC130210  Fritillaria agrestis Roxana S. Ferris 1921-3-21 2120 San Mateo New Years Point - [Ann] Ano Nuevo Comment
  JEPS83069  Galium Roy E. Buck, Randall A. Morgan, James A. West 1983-7-15 434 San Mateo along crest of ridge w gravel road (ca 3.2 km nw of Pilarcitos Dam and 2.4 km wsw of San Andreas Dam); San Francisco Watershed Reserve, Fifield Ridge 388 Comment
  UCD163788  Galium Peter Rubtzoff 1988-6-25 9928 San Mateo Menlo Park, on Willow Road near Alma Street. Comment
  POM59550  Galium aparine A. D. E. Elmer 1903-05 4424 San Mateo San Mateo Comment
  RSA130682  Galium aparine James I. McMurphy 1906-5-8 s.n. San Mateo Near head of Crystal Springs Lakes Comment
  UCR121582  Galium californicum subsp. californicum George K. Helmkamp, E. A. Helmkamp 1999-6-28 4982 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  UC615504  Galium californicum subsp. californicum Beryl O. Schreiber 1932-5-29 299 San Mateo w San Mateo (Skyline Boulevard) Comment
  JROH3787  Galium murale John H. Thomas 1961-4-8 9074 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3790  Galium murale John H. Thomas 1967-5-12 12882 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5738  Galium murale John Rawlings 2015-4-5 1658 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near base of scree slope in old quarry off of Trail 12 111 Comment
  JROH795  Gamochaeta ustulata John Hunter Thomas 1981-5-8 20550 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD84710  Gamochaeta ustulata Robert E. Preston 2009-6-16 2688 San Mateo Santa Cruz Mtns, ca. 0.5 mi NW of Waterman Gap. 347 Comment
  CAS-BOT-BC303465  Gamochaeta ustulata Elizabeth McClintock; Philip Wheeler 1967-6-11 s.n. San Mateo Upper Colma Canyon, San Bruno Mt Comment
  SEINET4041731  Garrya elliptica D. Demaree 1930-1 7312 San Mateo Los Trancos Woods. Comment
  CAS-BOT-BC194563  Garrya elliptica E. L. H. Knoche 1896-4-1 s.n. San Mateo Inland from Pescadero Comment
  CAS-BOT-BC194566  Garrya elliptica Elizabeth McClintock 1965-3-28 s.n. San Mateo Up hill from Trillium Gulch. San Bruno Mountain Comment
  SD41264  Garrya elliptica Delzie Demaree 1930-2-1 7312 San Mateo Los Trancos Woods. Comment
  JROH5198  Gastridium phleoides John Hunter Thomas 1992-5-14 25220 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC59638  Gaultheria shallon W. R. Dudley 1894-3-24 s.n. San Mateo Lower part of Pescadero Creek. Comment
  CAS-BOT-BC219142  Genista monspessulana Phillip Wheeler 1965-6-8 s.n. San Mateo San Bruno Mountain. Bayshore, cut area Comment
  JROH2006  Genista monspessulana John H. Thomas 1961-5-5 9208 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below Searsville Dam 76 Comment
  JROH2009  Genista monspessulana John Hunter Thomas 1978-4-22 19107 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2013  Genista monspessulana John Hunter Thomas 1983-4-3 21307 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  JROH2018  Genista monspessulana John Hunter Thomas 1987-4-30 24213 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR2934  Genista monspessulana Wm. Horn Jr. 1963-4-7 630407- 2 San Mateo San Francisco Bay, Hillsborough, 2240 Redington Road 30 Comment
  SD227830  Geranium carolinianum G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3738 San Mateo Portola Valley: Golden Hills Rd. along Los Trancos Creek. 106 Comment
  RSA0028369  Geranium carolinianum W. R. Dudley 1898-4-24 s.n. San Mateo Field near Corte de Madera Bridge. Comment
  JROH2614  Geranium dissectum John H. Thomas 1973-4-14 16555 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2623  Geranium molle John H. Thomas 1955-5-6 5005 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA128903  Gilia achilleifolia subsp. multicaulis Harry A. Dutton 1900-4-19 A. San Mateo Santa Cruz Peninsula Comment
  JROH3167  Gilia clivorum John Hunter Thomas 1991-4-11 24980 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UC75485  Gilia clivorum C. F. Baker Apr 1903 1899 San Mateo San Bruno Hills Comment
  JROH2024  Glycyrrhiza lepidota John H. Thomas 1971-8-7 16016 San Mateo Jasper Ridge Biological Preserve, Stanford University; near west side of Searsville Lake Comment
  RSA22173  Gnaphalium luteoalbum L. R. Abrams, I. L. Wiggins 1939-6-3 431 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC344857  Gnaphalium palustre Peter Rubtzoff 1975-10-11 8423 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  JROH787  Gnaphalium palustre John Hunter Thomas 1980-11-27 20186 San Mateo Jasper Ridge Biological Preserve, Stanford University; delta Comment
  JROH789  Gnaphalium palustre John Hunter Thomas 1982-11-6 21196 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET11849477  Gnaphalium palustre Unknown 1932-1 9161 San Mateo Gov. Rolph Estate Comment
  SEINET3386993 Image available Gnaphalium ramosissimum Lewis S. Rose 1935-8-13 35568 San Mateo Salada, Brushy coastal hills. 30 Comment
  POM358931  Gnaphalium ramosissimum E. S. Spalding 1923-8-3 s.n. San Mateo 3 miles W of Redwood City, near Pulgas Tunnel. Comment
  RSA91713  Gnaphalium ramosissimum F. W. Peirson 1925-9-13 6426 San Mateo Rockaway beach Comment
  POM359110  Grindelia D. D. Keck 1932-5-25 1783 San Mateo Hills two miles W of Belmont Comment
  CAS-BOT-BC304529  Grindelia hirsutula Saichi Kawahara 1969-6-15 426 San Mateo Pescadero Beach, 150 yards south of mouth of Pescadero Creek, Highway 1 4 Comment
  POM203263  Grindelia hirsutula J. T. Howell 1933-5-26 11348 San Mateo Crystal Springs Lake. Comment
  UC483491  Grindelia hirsutula Ira L. Wiggins 1929-7-4 3799 San Mateo sea bluffs at Pescadero Beach Pescadero Beach Comment
  CAS-BOT-BC304511  Grindelia hirsutula Robert Robertson 1954-4-14 77 San Mateo N.W. of Palo Alto Yacht Club 3 Comment
  CAS-BOT-BC304520  Grindelia hirsutula V. F. Hesse 1961-8-24 3026 San Mateo Near, north of, Pigeon Point 4 Comment
  CHSC22931  Grindelia stricta Robert A. Schlising; Glenn Keator 1962-2-3 2050 San Mateo Coast Ranges. Shore; along area at Gazos Creek and Highway 1. Comment
  SD30784  Grindelia stricta var. angustifolia Edith A. Purer 1933-8-4 5414 San Mateo Baden Station Comment
  POM308523  Grindelia stricta var. platyphylla Henry J. Ramsey, Henry J. Ramsey 1939-10-7 3172 San Mateo Coast, Highway 1. Comment
  UC1132184  Hainardia cylindrica A. Hormay 1932-5-29 17 San Mateo San Bruno 1 Comment
  OBI4246  Hedera canariensis Carol Wong 1970-3-28 28 San Mateo Emerald Lake, Redwood City. On the side of the lake just after crossing the bridge. Comment
  CAS-BOT-BC309543  Helenium puberulum A. D. E. Elmer 1903-7-1 4972 San Mateo Crystal Springs Lake Comment
  JEPS35427  Helenium puberulum Alice King 1908-7-25 San Mateo Moss Beach Comment
  JROH832  Helenium puberulum John H. Thomas 1968-4-19 14293 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC309533  Helenium puberulum George Oberlander 1949-7-30 318 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon Comment
  CAS-BOT-BC309536  Helenium puberulum Josephine D. Randall 1907-6-12 72 San Mateo Santa Cruz Peninsula. Portola Road near Stanford University Comment
  JROH1834  Helianthemum scoparium John H. Thomas 1961-6-14 9537 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1536746  Helminthotheca echioides Gordon H. True 1937-7-23 802 San Mateo near Salada Beach Road; Skyline Blvd 60 Comment
  JROH1174  Helminthotheca echioides John Hunter Thomas 1982-7-22 21086 San Mateo Jasper Ridge Biological Preserve, Stanford University; near main gate on Sand Hill Rd. Comment
  CAS-BOT-BC453466  Hemitomes congestum R. S. Ferris 1923-5-26 3787 San Mateo Chris Iverson Trail, Butano Ridge Comment
  POM284518  Hemizonia congesta Lyman Benson 1934-7-29 6108 San Mateo Crystal Springs Lake; Mt. Range: Santa Cruz; Watershed: S. F. Bay. 152 Comment
  CAS-BOT-BC314939  Hemizonia congesta subsp. luzulifolia John H. Thomas 1969-10-19 15480 San Mateo Near Canada College, Redwood City just off of Farm Hill Blvd. Comment
  CAS-BOT-BC314949  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1914-7-15 5140 San Mateo Crystal Springs Comment
  LA203702  Hemizonia congesta subsp. luzulifolia Lewis S. Rose; 1935-9-21 35652 San Mateo Redwood City Comment
  UC193423  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-13 10225 San Mateo 2.2 km e Crystal Springs Lake (from along road n of creek and up side of hill to n); San Mateo Creek Comment
  UCD133006  Hemizonia congesta subsp. luzulifolia John H. Thomas 1958-6-11 7228 San Mateo about 4.3 miles due east of Belmont near Crystal Springs Reservoir. Comment
  UCR80235  Hemizonia corymbosa David D. Keck 1932-5-25 1784 San Mateo San Francisco Bay Region, hills two miles west of Belmont 168 Comment
  RSA136195  Hemizonia pungens subsp. maritima John H. Thomas 1954-5-28 4231 San Mateo Redwood City; near intersection of Bayshore and Main Street 0 Comment
  JROH252  Heracleum maximum John Hunter Thomas 1986-5-1 23989 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing near San Francisquito Creek Comment
  RSA187311  Hesperocnide tenella John H. Thomas 10307 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC403864  Hesperocnide tenella Roxana S. Ferris 1921-3-20 2109 San Mateo Santa Cruz Mountain Peninsula. Pescadero Creek, 6 mi above Pescadero Comment
  SBBG28494  Hesperocyparis abramsiana var. abramsiana H. A. Dutton -Sep-1949 San Mateo North Fk of Butano Crk (common corner of Section 11 and 12 and 13 and 14, range 4W) Comment
  JROH2933  Hesperolinon micranthum John Hunter Thomas 1981-5-25 20624 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2938  Hesperolinon micranthum John Hunter Thomas 1992-5-25 25342 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3682  Heteromeles arbutifolia John Hunter Thomas 1981-2-14 20223 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC311087  Heteromeles arbutifolia A. D. E. Elmer Feb 1903 4575 San Mateo Portola Comment
  CAS-BOT-BC310768  Heterotheca sessiliflora subsp. echioides Phillip C. Wheeler 1965-7-8 s.n. San Mateo San Bruno Mountain. 3 mile ridge Comment
  CAS-BOT-BC310771  Heterotheca sessiliflora subsp. echioides C. F. Leitholt 1894-7-28 s.n. San Mateo Road above Buck Horn Ranch near Portola Comment
  CAS-BOT-BC420890  Heuchera micrantha var. diversifolia W. R. Dudley 1894-7-30 s.n. San Mateo La Honda Road Comment
  CAS-BOT-BC420898  Heuchera micrantha var. erubescens L. S. Rose 1895-6-6 s.n. San Mateo Pescadero Creek near Iverson's Comment
  CAS-BOT-BC420899  Heuchera micrantha var. erubescens D. E. Breedlove 1973-9-26 35563 San Mateo Pescadero Creek County Park 365 Comment
  CAS-BOT-BC424376  Heuchera micrantha var. hartwegii John H. Thomas 1967-5-7 12837 San Mateo Near intersection of Bean Hollow and Pescadero roads, about 1/2 mile westward from Pescadero. 91 Comment
  RSA0063102  Heuchera micrantha var. hartwegii G. Oberlander 1950-5-28 955 San Mateo Pilarcitos Canyon. San Francisco Watershed Reserve. Comment
  RSA0063142  Heuchera micrantha var. hartwegii D. D. Keck 1932-6-1 1794 San Mateo Above Woodside on La Honda Rd. E slope of Santa Cruz Mtns. Comment
  RSA0063146  Heuchera micrantha var. hartwegii Carl B. Wolf 1929-6-8 3747 San Mateo Searsville Lake. Comment
  UCR121585  Hieracium argutum George K. Helmkamp, E. A. Helmkamp 1999-6-28 4964 San Mateo Coast Range; Santa Cruz Mtns, Sky Londa; junction of Calif. Hwy 84 and Calif. Hwy 35, 5 mi south of central Redwood City 457 Comment
  RSA128789  Holcus lanatus P. H. Raven 1950-6-3 2268 San Mateo Near San andreas Lake. Comment
  RSA121223  Holcus lanatus G. E. Sindel 1935-8-14 332 San Mateo Half mile N of Purisama Creek. 320 Comment
  RSA112371  Holodiscus discolor Josephine Randall 1907-6-29 336 San Mateo Santa Cruz Peninsula, King's Mountain Road. Comment
  RSA176728  Holodiscus discolor John H. Thomas 1962-7-15 9916 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC150057  Holodiscus discolor var. discolor Jay B. Walker; Noah Goldstein 1994-8-14 908 San Mateo Pomponio Creek Road. 5 km south of jct Hwy 84 and Hwy 1 10 Comment
  CAS-BOT-BC150061  Holodiscus discolor var. discolor Phillip C. Wheeler 1965-4-27 s.n. San Mateo Live Oak Canyon Comment
  JROH3691  Holodiscus discolor var. discolor John H. Thomas 1974-5-29 17399 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM205104  Hordeum brachyantherum E. B. Copeland 1903-6-10 3304 San Mateo Montara Point. Comment
  SEINET6205028  Hordeum brachyantherum L. S. Rose 1963-1 63001 San Mateo Skyline Blvd, W of San Mateo Comment
  CAS-BOT-BC284678  Hordeum brachyantherum subsp. brachyantherum H. A. Borthwick 1921-4-7 s.n. San Mateo Santa Cruz Mountain Peninsula. San Bruno Mt. 91 Comment
  CAS-BOT-BC289535  Hordeum brachyantherum subsp. californicum Lewis S. Rose 1956-5-7 56070 San Mateo Skyline Blvd. w. of San Mateo 182 Comment
  CAS-BOT-BC289537  Hordeum brachyantherum subsp. californicum Elizabeth McClintock; Paul Reeberg 1988-6-6 s.n. San Mateo Below Guadalupe Canyon Parkway 1/4 mile east of Carter Street, San Bruno Mountains 91 Comment
  JROH5229  Hordeum brachyantherum subsp. californicum John Hunter Thomas 1981-4-27 20510 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15907  Hordeum brachyantherum subsp. californicum John Rawlings, Sara Timby, Toni Corelli 2016-4-23 1732 San Mateo Bean Hollow bluff trail, west of Hwy 1 south of Pescadero 8 Comment
  CAS-BOT-BC285154  Hordeum marinum subsp. gussoneanum George Oberlander 1950-7-15 1040 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  CAS-BOT-BC289395  Hordeum murinum subsp. glaucum Ned Cahill 1974-5-30 319 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi. westward from Redwood City Comment
  POM205100  Hordeum murinum subsp. glaucum Copeland 1903-6-9 3334 San Mateo Montara Point. Comment
  RSA181230  Hordeum murinum subsp. leporinum John H. Thomas 1963-5-20 10123 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC271400  Hordeum vulgare John H. Thomas 1974-4-11 17123 San Mateo Area to the SE of Canada Road and Edgewood Road, NW of Woodside 152 Comment
  RSA523364  Horkelia californica G. H. True 1936-6-14 508 San Mateo Canyon S of Salada Beach. 305 Comment
  CAS-BOT-BC536141  Horkelia californica W. R. Dudley 1897-10-11 s.n. San Mateo Near Half Moon Bay (Spanishtown) Comment
  CAS-BOT-BC536154  Horkelia californica David D. Keck 1939-7-1 5008 San Mateo 3 miles south of Pescadero, 1 mile from the ocean 60 Comment
  CAS-BOT-BC143923  Horkelia cuneata var. sericea A. D. E. Elmer 1903-4-1 5036 San Mateo Cemeteries Comment
  CAS-BOT-BC143926  Horkelia cuneata var. sericea A. A. Heller 1906-6-8 8374 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks Comment
  CAS-BOT-BC144013  Horkelia marinensis George Oberlander 1951-7-12 1204 San Mateo Clearing in San Andreas Valley, San Francisco Watershed Reserve Comment
  SJSU16037  Hosackia gracilis Toni Corelli, John Rawlings 2016-4-29 1766 San Mateo Cascade Field along Atkinson Bluff Trail, north of Cascade Cr. Trail, in Ano Nuevo State Park 11 Comment
  CDA20055  Hydrocotyle ranunculoides L. Kuwahara 2002-10-9 PDR 064651 San Mateo San Francisco Bay Area; Pomponio Ranch, 3300 Pomponio Crk Rd, San Gregorio. 0 Comment
  CDA34310  Hypericum canariense C. Kozak 2011-6-16 we 543 San Mateo San Francisco Bay Area; Cloverdale Ranch, Pescadero. On the east(inland) side of Highway 1 approx. 1.1 mi. N of Gazos Creek Rd. 0 Comment
  UCSC007758  Hypochaeris glabra Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  SD39734  Hypochaeris radicata Edith A. Purer 1933-7-27 5342 San Mateo Pigeon Point Comment
  RSA127080  Iris douglasiana John H. Thomas 1959-4-4 7656 San Mateo About 0.7 miles S. of Gazos Creek. About 6.5 miles southward from Pescadero. 46 Comment
  UC1252086  Iris douglasiana J. H. Thomas 1959-4-4 7656 San Mateo about 0.7 mi s Gazos Creek (about 6.5 mi s-ward from Pescadero) 45 Comment
  UC4275  Iris douglasiana J. Burtt Davy Jun 21 1893-Jun 23 1893 1129 San Mateo Pilarcitos Lake and Pilarcitos Canyon; Pilarcitos Lake, Pilarcitos Canyon Comment
  UCR198043  Iris douglasiana S. Seiki, Patricia Carter 1998-5-2 02 San Mateo Montara Mountain, city of Pacifica, c. 2.4 mi from San Pedro Valley along Devil's Slide heading west Comment
  UCD138710  Iris douglasiana Ogden C. Riddle 1941-4-6 65 San Mateo Finney Ridge, near Half Moon Bay. 243 Comment
  UCSB880  Iris douglasiana Walker, Clifford 1954-4-20 San Mateo junction of Skyline Blvd and Highway to Half Moon Bay Comment
  JROH4426  Iris foetidissima Toni Corelli 2010-5-19 359 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 20, across from Douglas' iris site 85 Comment
  CAS-BOT-BC133650  Iris longipetala William R. Dudley 1893-4-1 s.n. San Mateo So. San Francisco, above Millbrae Comment
  CAS-BOT-BC133658  Iris longipetala L. R. Abrams 1919-3-20 s.n. San Mateo South San Francisco Comment
  CAS-BOT-BC133675  Iris longipetala Lewis S. Rose 1964-4-12 64020 San Mateo South San Francisco, San Bruno Mt. 60 Comment
  SJSU7515  Iris longipetala Lewis S. Rose 1968-3-26 68009 San Mateo S base San Bruno Mts, S San Francisco 30 Comment
  UC1057443  Iris longipetala G. Thomas Robbins 1937-4-11 82 San Mateo slopes above Spring Valley Lake (s of San Francisco) Comment
  JROH4429  Iris pseudacorus J. H. Thomas 1958-5-11 7165 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of lake Comment
  JROH4434  Iris pseudacorus John Hunter Thomas 1981-7-12 20693 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of lake Comment
  CAS-BOT-BC57729  Isoetes howellii W. R. Dudley 1910-5-26 s.n. San Mateo Coal Mine Ridge Comment
  JEPS67913  Isoetes howellii L. R. Heckard and J. J. Thomas 1972-4-16 2896 San Mateo sw of Upper Crystal Springs Reservoir (ca 1 1/2 mi s of Pulgas Water Temple, along Old Canada Rd (private)) 121 Comment
  CAS-BOT-BC112608  Isolepis cernua Herbert L. Mason 1921-6-2 s.n. San Mateo Pebble Beach near Pescadero Comment
  CAS-BOT-BC112617  Isolepis cernua Ira L. Wiggins; Roxana S. Ferris 1939-8-2 9290 San Mateo Ano Nuevo Point Comment
  SEINET7589112 Image available Isolepis cernua E. B. Copeland 1903-6-15 3315 San Mateo Montara Point. Comment
  POM223675  Jaumea carnosa L. S. Rose 1935-8-13 35566 San Mateo Salada. Comment
  UC1192236  Jaumea carnosa Herbert L. Mason 1949-7-7 14033 San Mateo marshes at mouth Pescadero Creek Comment
  CAS-BOT-BC340137  Jaumea carnosa Ray Pestrong 1963-11-8 s.n. San Mateo South San Francisco Bay. Near east Palo Alto, Dumbarton Bridge Comment
  CAS-BOT-BC102323  Juglans hindsii Ed Holm; Field Biol. Class, San Mateo High School 1984-7-24 s.n. San Mateo In creekbed of San Mateo Creek next to Polhemus Rd. just before it joins Crystal Springs Rd. and about 100 yds. below Comment
  JROH5659  Juncus bufonius var. bufonius John Rawlings 2014-5-23 1270 San Mateo Jasper Ridge Biological Preserve, Stanford University; up-slope from boat dock (aka Searsville Lab Landing). 104 Comment
  JROH4454  Juncus bufonius var. bufonius Carol Zabel 2003-3-19 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Along both sides of Road F at intersection with Trail 15. Comment
  JEPS10200  Juncus bufonius var. congestus Rimo Bacigalupi with G. T. Robbins 1954-6-18 4559 San Mateo Point Ano Nuevo Comment
  RSA276358  Juncus bufonius var. congestus Jane Turner, Francis M. Ball 1962-7-7 SK&F- 1083 San Mateo Highway 1, ca. 10 miles N of Santa Cruz County line. Comment
  JROH4468  Juncus bufonius var. occidentalis John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1101015  Juncus effusus subsp. pacificus Malcolm A. Nobs and S. Galen Smith 1949-8-26 1589 San Mateo about 1 mi s Half Moon Bay Comment
  RSA786664  Juncus effusus var. pacificus Peter Rubtzoff, Roman Gankin 1975-9-11 8373 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  UC1100998  Juncus lescurii Malcolm A. Nobs and S. Galen Smith 1949-8-26 1600 San Mateo Mouth of Pescadero Creek Comment
  JROH4478  Juncus occidentalis John H. Thomas 1963-5-12 10078 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA6313  Juncus occidentalis D. D. Keck 1932-5-6 1468 San Mateo Belmont. Comment
  RSA18498  Juncus patens Carl B. Wolf 1927-7-14 622 San Mateo 1 mile south of summit of Kings Mt on Skyline Drive. Comment
  UC2680  Juncus phaeocephalus J. Burtt Davy 1893-6-17 851 San Mateo w of Salt Marsh; Belmont Comment
  CAS-BOT-BC182761  Juncus phaeocephalus Peter Rubtzoff 1978-7-8 9230 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC210054  Juncus phaeocephalus Peter Rubtzoff 1976-6-30 8706 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Westernmost part of the area on slope across fence. Comment
  CAS-BOT-BC210148  Juncus phaeocephalus Peter Rubtzoff; Roman Gankin 1975-9-11 s.n. San Mateo San Bruno Mountains. Pond NW of and across odl [old] Guadalupe Road from Saddle area, which is located on north side of Guadalupe Canyon Parkway, west of Radio Road junction Comment
  RSA783800  Juncus phaeocephalus var. paniculatus Peter Rubtzoff 1978-7-8 9226 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH4038  Kickxia elatine Herbert Dengler 1961-9-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; S.F. Creek bed -- about midway between tiger lily site and old Zoology Cabin site -- directly below nesting sites of Kingfisher and Rough-winged Swallow Comment
  JROH5263  Koeleria macrantha W. Lennihan unspecified s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Serpentine, 50' east of fire road, east of moisture tubes in neutron probes. Comment
  JROH5268  Koeleria macrantha John H. Thomas 1968-5-22 14454 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH950  Lactuca serriola John H. Thomas 1971-8-5 16012 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH953  Lactuca serriola John Hunter Thomas 1978-7-14 19264 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville entrance Comment
  JROH5656  Lagophylla ramosissima John Rawlings 2014-5-23 1260 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 15. 190 Comment
  JROH955  Lagophylla ramosissima L. R. Abrams 1914-6-2 5111 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  CAS-BOT-BC341630  Lagophylla ramosissima V. F. Hesse 1962-6-26 3153 San Mateo Alpine road, 2.6 miles west of Highway 5 457 Comment
  CAS-BOT-BC341638  Lagophylla ramosissima David D. Keck; W. M. Heusi 1929-10-24 500 San Mateo Summit of Coast Range, Alpine Creek Road 765 Comment
  CAS-BOT-BC272430  Lamarckia aurea W. R. Dudley 1906-5-19 s.n. San Mateo Hillside toward Cordilleras Creek and Whipple Road on Britton Ranch west of Redwood City, Santa Cruz Peninsula Comment
  JROH2778  Lamium amplexicaule H. J. Dengler 1975-3-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; by road below Searsville Dam Comment
  CHSC24835  Lasthenia californica B. A. Rosene 1976-4-18 2 San Mateo Ca. 2.4 km nw of entrance to Calif. State Game Refuge. 182 Comment
  CAS-BOT-BC339048  Lasthenia californica Elizabeth McClintock; Arthur Menzies 1963-2-16 s.n. San Mateo San Bruno Mountain. Below the top of the mountain in the vicinity of the radio station Comment
  CAS-BOT-BC339084  Lasthenia californica W. R. Dudley No date on label s.n. San Mateo Ocean View near San Francisco Comment
  CAS-BOT-BC339097  Lasthenia californica J. H. Thomas 1949-4-1 215 San Mateo Hills west of Redwood City Comment
  JEPS10183  Lasthenia californica subsp. californica W. L. Jepson 1919-4-19 8230 San Mateo San Bruno Hills Comment
  JEPS89767  Lasthenia californica subsp. californica Dean W. Taylor 1989-3-30 10188 San Mateo ridge separating Guadalupe Valley from Vistacion Valley (Right-of way of easternmost set of PG&E high-voltage powerlines crossing crest of ne ridge of San Bruno Mountain); Santa Cruz Mountains, San Bruno Mountain Comment
  JEPS97024  Lasthenia californica subsp. californica John M. Tucker 1941-4-6 212 San Mateo meadow at roadside Pigeon Point Comment
  SEINET11811269  Lasthenia chrysostoma Unknown 1933-1 49 San Mateo Jasper Ridges Comment
  UC1598598  Lasthenia glabrata subsp. glabrata A. D. E. Elmer 1903-5-1 4426 San Mateo Millbrae Comment
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Sep 9 2011
  UC194043  Lasthenia glabrata subsp. glabrata E. L. Greene 1886-4-5 San Mateo Belmont Comment
  RSA262209  Lasthenia glabrata subsp. glabrata John H. Thomas 1971-5-2 15794 San Mateo Near intersection of Canada and Edgewater roads; about 3 miles westward from Redwood City. 152 Comment
  CAS-BOT-BC360402  Lasthenia glabrata var. glabrata Ned Cahill 1974-4-18 130 San Mateo Near intersection of Canada and Edgewood Roads, about 3 mi westward from Redwood City. Comment
  UCD133776  Lasthenia gracilis R. E. Dengler 1960-4-10 4 San Mateo Jasper Ridge, Stanford Biological Reserve. 190 Comment
  RSA18351  Lasthenia macrantha subsp. macrantha C. B. Wolf 1927-1-29 s.n. San Mateo Pescadero Comment
  CAS-BOT-BC368184  Lasthenia minor John H. Thomas 1967-5-7 12834 San Mateo Pigeon Point. Altitude about sea level. Near Lighthouse. Comment
  CAS-BOT-BC204915  Lathyrus James McMurphy 1909-5-25 s.n. San Mateo Grade west of Crystal Springs Comment
  RSA10272  Lathyrus littoralis H. A. Barker 1927-5-14 672 San Mateo North of Half Moon Bay. Comment
  UCD106475  Lathyrus vestitus A. A. Heller 1907-4-20 8454 San Mateo San Bruno Hills. Comment
  SJSU1011  Lathyrus vestitus J. E. Hagerty 1950-5-6 San Mateo Corte Madera Cr 0.5 mi above Strawberry Bend Comment
  JROH2039  Lathyrus vestitus var. vestitus John Hunter Thomas 1985-4-11 23518 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2041  Lathyrus vestitus var. vestitus John Hunter Thomas 1992-4-23 25157 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Rattlesnake Rocks and along trail to redwoods Comment
  UC15326  Lathyrus vestitus var. vestitus J. Burtt Davy 1895-4-20 1054 San Mateo Lake Pilarcitos Comment
  JROH2036  Lathyrus vestitus var. vestitus John Hunter Thomas 1984-4-8 23277 A San Mateo Jasper Ridge Biological Preserve, Stanford University; near weather station Comment
  UC1252091  Lavatera arborea J. H. Thomas 1959-4-4 7660 San Mateo roadside on coastal bluffs at Pescadero; at coastal bluffs at Pescadero 60 Comment
  CAS-BOT-BC323159  Layia chrysanthemoides David D. Keck 1932-4-29 1450 San Mateo Redwood City. Comment
  RSA103960  Layia chrysanthemoides M. K. Curran 1885-04 s.n. San Mateo Belmont. Comment
  UC89164  Layia chrysanthemoides K. Brandegee 1885-5-1 San Mateo Millbrae Comment
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Sep 9 2011
  UC30646  Layia gaillardioides J. Burtt Davy Apr 21 1893-Apr 23 1893 1161 San Mateo Pilarcitos Lake and Canyon Comment
  UC990575  Layia gaillardioides James I. McMurphy 1909-5-25 San Mateo above Pulpit Rock; San Mateo Canyon Comment
  CAS-BOT-BC321072  Layia gaillardioides H. L. Mason 1921-7-14 s.n. San Mateo La Honda-Pescadero Road, near Pescadero Creek Comment
  CAS-BOT-BC321097  Layia gaillardioides David D. Keck 1932-5-6 1483 San Mateo Skyline Blvd. W of Millbrae Highlands, Santa Cruz Mountains. Comment
  CAS-BOT-BC327468  Layia hieracioides John H. Thomas 1950-5-14 1871 San Mateo Ben Lomond Sand Hills, along Quail Hollow Road 152 Comment
  CAS-BOT-BC327469  Layia hieracioides John H. Thomas 1953-5-2 3085 San Mateo Sunset Beach State Park, near USG&GS Markers: Park 1931 and Park 2-1931. 15 Comment
  CAS-BOT-BC327485  Layia hieracioides Lewis S. Rose 1933-6-9 33218 San Mateo 3 mi W of San Bruno Comment
  CAS-BOT-BC327505  Layia hieracioides J. H. Thomas 1961-5-7 9307 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  RSA195579  Layia hieracioides John H. Thomas 1966-4-22 11568 San Mateo Jasper Ridge Biological Experimental Area. About 5 miles SW of Palo Alto. Comment
  RSA100979  Layia hieracioides G. Oberlander 1949-9-25 368 San Mateo On Sawyer Ridge, San Francisco Watershed Reserve. Comment
  SEINET5556738  Layia hieracioides H. S. Gentry 1931-1 98 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC382076  Layia platyglossa Roxana S. Ferris 1921-4-7 21030 San Mateo San Bruno Mt. 213 Comment
  CAS-BOT-BC382218  Layia platyglossa David D. Keck 1932-5-6 1491 San Mateo East side of Crystal Springs Lake 60 Comment
  CAS-BOT-BC382221  Layia platyglossa Donald A. Johansen 1932-5-21 687 San Mateo 1/2 mile north of Pigeon Point lighthouse. Comment
  POM88088  Layia platyglossa subsp. platyglossa L. R. Abrams 1902-5-11 2442 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC534550  Lemna gibba W. R. Dudley 1908-6-19 s.n. San Mateo Santa Cruz Peninsula, Ditch N. of Jersey Farm Dairy Comment
  CAS-BOT-BC537272  Lemna minor D E Breedlove 1974-5-13 36220 San Mateo Brushy slopes San Pedro Valley Park, Pacifica 152 Comment
  CAS-BOT-BC527267  Lemna minuta Ira L. Wiggins 1980-9-1 22271 San Mateo Pool in San Francisquito Creek, ca. 250 m. upstream from Pope Street Bridge, Menlo Park Comment
  RSA135760  Leontodon leysseri John H. Thomas 1956-7-2 6040 San Mateo Along Graham Hill Road, 1.9 miles from Felton RR Station. 183 Comment
  CAS-BOT-BC221522  Lepechinia calycina George Oberlander 1940-5-31 142 San Mateo San Francisco Watershed Reserve. Sweeney Ridge Comment
  CAS-BOT-BC221531  Lepechinia calycina Phillip C. Wheeler 1965-6-20 s.n. San Mateo San Bruno Mountain. Area west of Crystal Cave Canyon Comment
  JROH2784  Lepechinia calycina John H. Thomas 1955-5-6 5015 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC306600  Lepechinia calycina A. D. E. Elmer Jun 1903 4416 San Mateo San Mateo Comment
  SEINET12277320  Lepechinia calycina Unknown 1933-1 10430 San Mateo Alpine Road Comment
  RSA176593  Lepidium didymum John H. Thomas 1961-8-27 9686 San Mateo Colma; open sandy field near intersection of El Camino Real and F Street 46 Comment
  CAS-BOT-BC166770  Lepidium didymum Peter Rubtzoff 1978-7-8 9233 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC89219  Lepidium draba J. H. Thomas 1956-4-27 4920 San Mateo Along Bayshore Highway, east of San Carlos. Comment
  CAS-BOT-BC12598  Lepidium nitidum H. A. Dutton 1900-2-1 s.n. San Mateo Santa Cruz Peninsula. Woodside. Comment
  JROH1549  Lepidium nitidum John Hunter Thomas 1980-4-10 19870 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  UC1301017  Lepidium nitidum Helen K. Sharsmith 1963-2-16 5143 San Mateo above Daly City; San Francisco Bay Region, San Bruno Mountain 106 Comment
  CAS-BOT-BC12781  Lepidium perfoliatum David D. Keck 1932-3-24 1400 San Mateo Redwood City. At border of San Francisco Bay. Comment
  JROH1562  Lepidium strictum John Hunter Thomas 1983-4-2 21304 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JEPS53739  Lepidium strictum W. L. Jepson 1891-4-4 13362 San Mateo San Bruno Comment
  CDA32442  Leptochloa fascicularis I. J. Campbell 1959-12-14 San Mateo San Miguel 0 Comment
  JROH5273  Leptochloa fusca subsp. fascicularis Ann Lambrecht 2006-8-23 33 San Mateo Jasper Ridge Biological Preserve, Stanford University; dry streambed of San Francisquito Creek 71 Comment
  POM279155  Leptosiphon androsaceus Lyman Benson 1935-5-5 6531 San Mateo Lake Searsville. 152 Comment
  RSA128848  Leptosiphon androsaceus Roxana S. Ferris 1921-5-24 2192 San Mateo Bluffs, Pebble Beach near Pescadero. Comment
  RSA0063624  Leptosiphon androsaceus L. R. Abrams 1902-5-11 2445 San Mateo San Mateo Canyon. Comment
  JROH3180  Leptosiphon bicolor Carol Zabel 1989-5-8 16 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11 just before intersection with Trail 10 Comment
  SJSU15803  Leptosiphon croceus Toni Corelli 2015-5-3 1193 San Mateo Northern edge of Fitzgerald Marine Reserve, Moss Beach also know as Vallemar Bluff 14 Comment
  CAS-BOT-BC226623  Leptosiphon grandiflorus W. R. Dudley 1896-7-30 s.n. San Mateo Santa Cruz Peninsula. Summit of hill just beyond La Honda Comment
  CAS-BOT-BC226726  Leptosiphon latisectus W. R. Dudley 1901-5-11 s.n. San Mateo Santa Cruz Peninsula. Land due west of Lake Merced Comment
  JROH5708  Leptosiphon parviflorus John Rawlings 2015-3-15 1351 San Mateo Jasper Ridge Biological Preserve, Stanford University; Rd. D. 110 Comment
  UC729640  Leptosiphon parviflorus Carl B. Wolf 1929-5-25 3727 San Mateo s of Pescadero; Pebble Beach Comment
  RSA0103658  Leptosiphon rosaceus E. B. Copeland 1903-6-6 3300 San Mateo Montara Point. Comment
  CAS-BOT-BC324055  Lessingia arachnoidea John Thomas Howell 1927-4-15 2325 San Mateo Crystal Springs Lake 213 Comment
  CAS-BOT-BC324061  Lessingia arachnoidea George Oberlander 1949-8-20 366 San Mateo Near San Andreas Lake Comment
  JEPS40995  Lessingia arachnoidea Lewis S. Rose 1964-9-9 64075 San Mateo w of San Mateo; Crystal Springs Lakes Comment
  RSA195537  Lessingia arachnoidea John H. Thomas 1958-9-15 7473 San Mateo 0.4 miles north of Dam on San Mateo Creek along Skyline Blvd 91 Comment
  UC33162  Lessingia arachnoidea Alice Eastwood 1896-9-1 San Mateo Crystal Springs Reservoir Comment
  SEINET1782116  Lessingia bakeri Carl F. Baker 1902-10-20 1834 San Mateo Searsville. Comment
  JROH1009  Lessingia glandulifera var. glandulifera John H. Thomas 1963-5-15 10091 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1013  Lessingia glandulifera var. glandulifera John H. Thomas 1975-5-26 17902 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1018  Lessingia glandulifera var. glandulifera John Hunter Thomas 1981-5-19 20608 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1006  Lessingia glandulifera var. glandulifera G. H. Mallory 1919-7-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; south end of Jasper Ridge Comment
  CAS-BOT-BC324171  Lessingia hololeuca Cherie Wetzel 1969-7-8 924 San Mateo near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC324185  Lessingia hololeuca LeRoy Abrams 1907-10-12 s.n. San Mateo Portola Comment
  JROH1036  Lessingia hololeuca Carol Zabel 1989-8-27 35 San Mateo Jasper Ridge Biological Preserve, Stanford University. This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  JROH5816  Lessingia hololeuca John Rawlings, Cary Tronson 2016-10-4 1948 San Mateo Jasper Ridge Biological Preserve, Stanford University. Location may be supplied to researchers on request. 111 Comment
  RSA51399  Lessingia hololeuca L. S. Rose 1949-8-14 s.n. San Mateo Emerald Lake, W of Redwood City Comment
  CAS-BOT-BC330363  Lessingia tenuis David D. Keck 1931-10-5 1276 San Mateo 5 miles from Stanford University Quad. along Los Trancos Creek, on the Portola road. Comment
  CAS-BOT-BC342092  Leucanthemum vulgare John H. Thomas 1964-6-19 10424 San Mateo 0.9 miles south of Tunitas Creek near Coast Highway 60 Comment
  RSA108328  Leymus condensatus Frank W. Gould 1941-5-10 1293 San Mateo 1 mile north of Santa Cruz County line on Highway 1. Comment
  UCD64549  Leymus condensatus David L. Morgan 1955-7-29 San Mateo Lower San Mateo County: 1 mi. N of Santa Cruz county line, State Hwy 1. 22 Comment
  CAS-BOT-BC272276  Leymus mollis J. H. Thomas 1963-5-11 10076 San Mateo Pescadero Beach Comment
  CAS-BOT-BC272185  Leymus triticoides Elizabeth McClintock; Paul Reeberg 1988-10-31 s.n. San Mateo South side of Crocker Industrial Park just east of West Powerline, San Bruno Mountains 60 Comment
  CAS-BOT-BC272187  Leymus triticoides Phillip C. Wheeler 1965-8-14 s.n. San Mateo Brisbane Lagoon, San Bruno Mountain Comment
  SEINET6633381  Ligusticum apiifolium A. D. E. Elmer 1903-1 4803 San Mateo San Mateo Comment
  CAS-BOT-BC451672  Lilaea scilloides W. R. Dudley 1909-10-31 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside valley pond Comment
  UCR247566  Limonium binervosum Michael Perlmutter 2011-6-15 s.n. San Mateo Burlingame, Sanchez Marsh Comment
  JROH4053  Limosella acaulis John Hunter Thomas 1980-11-12 20166 San Mateo Jasper Ridge Biological Preserve, Stanford University. Ground of delta Comment
  JROH5853  Limosella acaulis Herb Dengler 1982-11-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; beach below old hamburger stand, Searsville Lake Comment
  JEPS113040  Linanthus ambiguus Dean W. Taylor 1994-5-10 14264 San Mateo Edgewood Park; ca. 300 meters SE of junction of Edgewood Road and Canada Road, ca. 200 m W of trail parallel to and on west side of Highway 280 137 Comment
  UC1174507  Linanthus ambiguus Le Roy Abrams 1902-5-4 2415 San Mateo Woodside Comment
  UCSC004682  Linanthus androsaceus Randall Morgan 1994-4-13 2181 San Mateo Edgewood Park/Canada Road Comment
  JEPS82910  Linanthus liniflorus Roy E. Buck and Randall A. Morgan 1983-6-7 338 San Mateo in triangle of Edgewood and Canada Rds and Hwy. I-280 (s of a small watercourse); San Francisco Watershed Reserve 137 Comment
  CDA6305  Linaria purpurea T. C. Fuller 1968-10-3 17659 San Mateo Christie s Crescent Nursery, Half Moon Bay. 0 Comment
  JROH2940  Linum bienne Ann Lambrecht 2002-5-18 2 San Mateo Jasper Ridge Biological Preserve, Stanford University; Sand Hill Road fence line Comment
  JEPS85571  Lithocarpus densiflorus Craig Dremann 1986-8-30 320 San Mateo La Honda; along Calif Highway 84 (La Honda-Woodside Rd) at mile marker 8.37 at intersection of Pescadero Rd Comment
  UC142600  Lithocarpus densiflorus C. F. Baker 1902-10-1 1759 San Mateo Summit of Coast Range Comment
  CAS-BOT-BC36072  Lithocarpus densiflorus var. densiflorus Josephine D. Randall 1907-6-29 128 San Mateo Kings Mt. Road Comment
  CAS-BOT-BC36066  Lithocarpus densiflorus var. densiflorus W. R. Dudley 1905-9-24 s.n. San Mateo [Cup] Gulch, upper part of Alpine grade, Black Mountain Comment
  CAS-BOT-BC430771  Lithophragma affine A. A. Heller 1907-4-25 8464 San Mateo San Bruno Hills Comment
  JROH3887  Lithophragma affine John H. Thomas 1971-4-3 15746 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3890  Lithophragma affine John Hunter Thomas 1981-4-23 20468 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  CAS-BOT-BC430769  Lithophragma affine W. R. Dudley 1900-3-17 s.n. San Mateo Redwood stage road below Hookerville Comment
  CAS-BOT-BC60214  Lobularia maritima Elizabeth McClintock 1967-9-24 s.n. San Mateo San Bruno Mountain. Crocker Avenue. Comment
  JROH734  Logfia gallica John H. Thomas 1971-5-30 15961 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC342473  Logfia gallica Eric Walther 1920-5-1 s.n. San Mateo Woodside Comment
  UC1132203  Lolium multiflorum H. S. Yates 1935-5-8 5224 San Mateo 1 mi n Bolsa Pt.; Santa Cruz Quad. Comment
  UCSC003883  Lolium multiflorum P. Cornelius 1957-6-2 s.n. San Mateo 4 miles south of Half Moon Bay, DM Hwy 1 Hwy 1, Half Moon Bay Comment
  CAS-BOT-BC269125  Lolium perenne Sister Anna Voss 1950-6-8 s.n. San Mateo N.W. head of Ravine behind Belmond Church Comment
  UC75212  Lomatium caruifolium var. caruifolium unknown 1902-4-8 2751 San Mateo San Andreas Lake Comment
  SEINET13944401 Image available Lomatium dasycarpum C. F. Baker 1902-1 461 San Mateo Crystal Springs Lake. Comment
  JROH274  Lomatium macrocarpum John H. Thomas 1962-5-31 9894 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1368794  Lomatium macrocarpum David H. French 1968-4-19 2857 San Mateo w. Redwood City (s.e. of Upper Crystal Springs Reservoir, s.e. side Edgewood Rd., ca. 100 yds. n.e. of intersection w/ Canada Rd.) Comment
  UC306534  Lomatium utriculatum A. D. E. Elmer April, 1903 4926 San Mateo Crystal Springs Lake Comment
  SD38866  Lomatium utriculatum McCallum 1933-5-31 3691 San Mateo Spring Valley Lakes, along roadside Comment
  CAS-BOT-BC240590  Lonicera hispidula Josephine D. Randall 1907-6-29 20 San Mateo Santa Cruz Peninsula. Los Trancos Creek near Stanford University Comment
  CAS-BOT-BC240598  Lonicera hispidula Carl B. Wolf 1930-11-5 1805 San Mateo 2 miles west of La Honda, Santa Cruz Mtns. 304 Comment
  CAS-BOT-BC243962  Lonicera involucrata var. ledebourii John H. Thomas 1964-6-19 10429 San Mateo 0.9 miles south of Tunitas Creek near Coast Highway 60 Comment
  RSA181234  Lonicera involucrata var. ledebourii John H. Thomas 1964-6-19 10429 San Mateo 0.9 miles S of Tunitas Creek near Coast Hwy, 61 Comment
  RSA51271  Lonicera involucrata var. ledebourii P. H. Raven 1950-4-30 1983 San Mateo Montara Mtns. Ca 1/2 mile N of Montara. 91 Comment
  UC139415  Lonicera involucrata var. ledebourii C. F. Baker 1903-4-8 1918 San Mateo San Andreas Lake Comment
  UC1537095  Lotus benthamii Gordon H. True Jr. 1936-4-15 386 San Mateo canyon between San Gregorio and Pescasdero 30 Comment
  HSC24031  Lotus corniculatus Mary Katherine Wicksten 1971-6-28 131 San Mateo Huddart Park. Near Park Office. Comment
  CAS-BOT-BC157970  Lotus formosissimus Peter Rubtzoff; Roman Gankin 1975-5-21 7972 San Mateo San Bruno Mountains. Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon Comment
  UC69541  Lotus humistratus J. Burtt Davy 1893-6-17 796 San Mateo Belmont Comment
  CDA28794  Lotus junceus D. G. Kelch 2009-6-9 9 .397 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
  UC15648  Lotus micranthus J. Burtt Davy Jun 21 1893-Jun 23 1893 1156 San Mateo Pilarcitos Lake and Canyon Comment
  RSA10275  Lotus stipularis H. A. Barker 1927-5-6 679 San Mateo Kings Mountain Comment
  SEINET12151372  Lotus subpinnatus Unknown 1932-1 9137 San Mateo Sky Line Drive Comment
  CAS-BOT-BC157978  Lotus tenuis Peter Rubtzoff 1981-8-29 9664 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; area northwest of Fog Forest Comment
  POM276640  Lotus wrangelianus Lyman Benson 1935-5-5 6538 San Mateo Lake Searsville. 152 Comment
  JROH3081  Ludwigia peploides subsp. peploides M. Whitley 1990-5-28 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; by the floats Comment
  UCR240782  Lupinus T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3514 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  UC127029  Lupinus affinis Alice Eastwood April 1896 San Mateo Crystal Springs Comment
  RSA0065265  Lupinus albifrons Daisie Huang 2006-8-6 06080604 San Mateo Roadside next to Crystal Springs Reservoir. 123 Comment
  SEINET10488410  Lupinus albifrons Charles F. Baker 1902-5-4 Baker UMO 71685 San Mateo Crystal spring. Open sides of gulches, 9-18 dm high Comment
  CAS-BOT-BC195802  Lupinus albifrons var. albifrons Charles Piper Smith 1922-6-10 3548 San Mateo South San Francisco - mountain road Comment
  CAS-BOT-BC195790  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-21 48461 San Mateo Highway 5 - junction San Bruno Road 3, 0.8 miles south Comment
  CAS-BOT-BC195798  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-21 48465 San Mateo Highway 5 - junction Burlingame 4 mile road, 2.7 miles south Comment
  CAS-BOT-BC195813  Lupinus albifrons var. albifrons W. R. Dudley 1894-4-21 s.n. San Mateo Ravine of San Mateo Creek 3 miles above town Comment
  CAS-BOT-BC195816  Lupinus albifrons var. albifrons W. R. Dudley 1894-4-21 s.n. San Mateo Ravine of San Mateo Creek 3 miles above town Comment
  CAS-BOT-BC196119  Lupinus albifrons var. collinus Charles Piper Smith 1908-5-31 1439 San Mateo South San Francisco, San Bruno Mountain, S.E. of cemeteries Comment
  RSA0060733  Lupinus albifrons var. collinus Daisie Huang 2006-8-6 06080601 San Mateo Fifield Ridge, inside San Francisco Water Authority land. 386 Comment
  SEINET10484535  Lupinus albifrons var. collinus Walter Knight, Irja Knight 1965-3-15 Knight 1225 San Mateo Low growing on open slopes. Colma canyon. San bruno mountains Comment
  CAS-BOT-BC27391  Lupinus apricus C. P. Smith 1908-4-13 1404 San Mateo Stanford University, Cedro Cottage Field. Comment
  CAS-BOT-BC8521  Lupinus apricus C. P. Smith 1908-3-30 1374 San Mateo Stanford University, field back of Cedro Cottage Comment
  CHSC903  Lupinus arboreus A. Koopman 1929-5-9 San Mateo Moss Beach. 9 Comment
  POM276478  Lupinus arboreus var. arboreus Lyman Benson 1930-6-14 2150 San Mateo San Gregorio. 30 Comment
  JROH2116  Lupinus bicolor John H. Thomas 1977-4-8 18518 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12154472  Lupinus bicolor Unknown 1932-1 9116 San Mateo Half Moon Bay Comment
  RSA226875  Lupinus bicolor subsp. pipersmithii L. R. Abrams 1914-4-24 5095 San Mateo Menlo Heights Comment
  POM10642  Lupinus bicolor subsp. tridentatus C. F. Baker 1903-4-8 1921 San Mateo San Andreas Lake Comment
  CAS-BOT-BC215064  Lupinus chamissonis Charles Piper Smith 1948-4-23 48146 San Mateo Junction of SF County Jail Road, Highway 5 Comment
  UCD23306  Lupinus formosus Alan T. Whittemore 1976-5-29 113 San Mateo San Francisco Fish and Game Refuge. East side of Lower Crystal Springs Lake, on Sawyer's Camp Road. 94 Comment
  POM276515  Lupinus latifolius subsp. latifolius Lyman D. Benson 1930-5-3 2092 San Mateo Above Woodside, La Honda Grade; Mt. range: Santa Cruz. 244 Comment
  UC83087  Lupinus microcarpus var. densiflorus Katharine Brandegee April 1884 San Mateo Brighton Comment
  JROH2133  Lupinus nanus John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2138  Lupinus nanus John Hunter Thomas 1983-4-7 21334 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2140  Lupinus nanus John Hunter Thomas 1988-4-28 24423 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC164349  Lupinus nanus Peter Rubtzoff 1978-7-8 9225 San Mateo Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction. East Fork Colma Creek Canyon, W side of canyon Comment
  RSA178637  Lupinus nanus subsp. nanus James I. McMurphy 1911-4-24 s.n. San Mateo Corner between San Francisquito and Los Trancos creeks near Stanford University. Comment
  POM276299  Lupinus polycarpus Lyman D. Benson 1934-3-31 5747 San Mateo Menlo Park 30 Comment
  POM11080  Lupinus succulentus A. D. E. Elmer 1903-04 5021 San Mateo Portola. Comment
  RSA414432  Lupinus tidestromii E. A. Purer 1932-7-18 4009 San Mateo Half Moon Bay Comment
  SD60197  Lupinus vallicola subsp. apricus J. I. McMurphy 1911-4-24 San Mateo Corner between San Francisquito & Los Francos Creek near Stanford University Comment
  JEPS34467  Lupinus variicolor L. Heckard and R. Bacigalupi 1963-7-2 1356 San Mateo trail to Montara Peak above old county road Comment
  POM276548  Lupinus variicolor Lyman D. Benson 1931-3-3 2619 San Mateo Moss Beach 30 Comment
  SEINET7076091 Image available Lupinus variicolor A. G. Vestal 1955-5-31 s.n. San Mateo Near Pebble Beach off Route 1. (NAD 27; 37.2369? deg. North Latitude, 122.4153? deg. West Longitude, UTM Zone 10, 551863mE, 4121109mN). [GPS Coordinate: WGS84/NAD83]. Comment
  SEINET12162894  Lupinus variicolor E. McClintock, Knight, W.; Knight, I. 1982-1 4644 San Mateo Windy Kamchatka Point, San Bruno Mtn 351 Comment
  UCD109674  Lupinus variicolor Kathyrn L. Koch 1965-5-1 47 San Mateo just south of State Highway 1 junction, across from Playa de las Frijoles State Park. Comment
  JROH4525  Luzula comosa var. comosa John H. Thomas 1967-4-20 12712 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC441265  Luzula macrantha Margaret A. Barry 1937-4-21 7 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC441267  Luzula macrantha E. A. McGregor 1908-3-9 s.n. San Mateo Coal Mine Ridge Comment
  JROH3364  Lysimachia arvensis John H. Thomas 1967-5-12 12883 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0011334  Lythrum hyssopifolia John H. Thomas 1954-5-28 4242 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 30 Comment
  SJSU10438  Lythrum hyssopifolia S. R. Piazza 1963-6-27 San Mateo by Hwy 1, 2 mi N of Pigeon Point Lighthouse Comment
  UCR248337  Lythrum hyssopifolia Peter Rubtzoff 1987-8-26 9837 San Mateo San Bruno Mountain, 'Saddle' area non north side of Guadalupe Canyon. Parkway west of Radio Road junction; northwestern part of the area along old Guadalupe Road 213 Comment
  JROH2953  Lythrum hyssopifolia John Hunter Thomas 1983-5-23 22248 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dry road and low-flow crossing on shack side Comment
  JEPS79507 Image available Lythrum salicaria Edward Lee 1978-8-24 San Mateo Princeton Marsh Comment
  HSC23936  Madia elegans Mary Katherine Wicksten 1971-7-22 185 San Mateo Huddart Park, by park entrance Comment
  POM362144  Madia elegans subsp. elegans E. A. Purer 1933-8-13 5421 San Mateo Santa Clara Valley, near Belmont Comment
  RSA407385  Madia elegans subsp. elegans Lyman Benson 1937-7-25 8470 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  CAS-BOT-BC344495  Madia exigua James I. McMurphy 1907-5-19 s.n. San Mateo Coal Mine Ridge Comment
  JROH1041  Madia exigua John H. Thomas 1961-6-7 9531 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1056  Madia exigua John Hunter Thomas 1981-5-25 20636 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1111618  Madia exigua Lewis S. Rose 1956-5-28 56083 San Mateo w of Redwood City (hills); Emerald Lake 182 Comment
  RSA63052  Madia exigua L. S. Rose 1950-5-20 50145 San Mateo Emerald Lake region, hills w. of Redwood City. 244 Comment
  CAS-BOT-BC343330  Madia gracilis Fred Hemphill 1973-5-14 815 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC343338  Madia gracilis David D. Keck 1932-6-1 1787 San Mateo Above Woodside on the La Honda road, east slope of the Santa Cruz Mtns. 305 Comment
  CAS-BOT-BC343339  Madia gracilis James I. McMurphy 1907-5-19 s.n. San Mateo Coal Mine Ridge Comment
  JEPS14885  Madia gracilis V. F. Hesse 1956-6-21 1936 San Mateo n Saratoga summit 731 Comment
  UCR121558  Madia madioides George K. Helmkamp, E. A. Helmkamp 1999-6-28 4977 B San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  JROH1103  Madia sativa John Hunter Thomas 1977-6-16 18763 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1116  Madia sativa John Hunter Thomas 1988-10-17 24594 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR256297  Madia sativa Peter Rubtzoff 1979-7-26 9301 San Mateo 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, San Bruno Mountains 213 Comment
  CDA8283  Madia sativa A. C. Browne 1950-8-12 San Mateo Alpine Creek. 0 Comment
  POM284997  Madia sativa Lyman Benson 1934-7-4 6103 San Mateo Moss Beach; Pacific Ocean watershed 15 Comment
  RSA190268  Madia sativa D. D. Keck 1930-10-15 988 San Mateo SW of Woodside 457 Comment
  JROH4698  Maianthemum racemosum John Hunter Thomas 1985-4-22 23544 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4693  Maianthemum racemosum L. R. Abrams 1916-3-25 5585 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Ridge near Dam Comment
  CAS-BOT-BC512104  Maianthemum racemosum subsp. amplexicaule Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Romanzoffia ravine; San Bruno Mountain Comment
  RSA244377  Maianthemum racemosum subsp. amplexicaule C. W. Tilforth, John Dourley 1973-7-19 932 San Mateo Gazos Creek Road, between Butano and Big Basin State Parks Comment
  SD27772  Maianthemum stellatum Carl B. Wolf 1927-4-3 250 San Mateo 1 mile above La Honda. 244 Comment
  JROH2958  Malacothamnus fasciculatus John H. Thomas 1962-6-6 9906 San Mateo Jasper Ridge Biological Preserve, Stanford University. This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  UC109094  Malacothamnus hallii Alice Eastwood 1891-10-27 San Mateo Hills back of Belmont Belmont Comment
  UCR121494  Malva nicaeensis George K. Helmkamp, E. A. Helmkamp 1999-6-28 4959 San Mateo Coast Range; Santa Cruz Mtns, Sky Londa; junction of Calif. Hwy 84 and Calif. Hwy 35, 5 mi south of central Redwood City 457 Comment
  JROH1898  Marah fabacea James Newman 1951-4-21 41 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  SJSU11761  Marah fabacea S. Anderson 1962-4-15 San Mateo Burlingame Hills near Burlingame Comment
  UC34926  Marah oregana E. R. Drew 1888-4-12 San Mateo San Pedro Ranch Comment
  JROH622  Matricaria discoidea John Hunter Thomas 1981-5-8 20566 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC118523  Meconella californica C. F. B. 1902-4-6 457 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC422680  Meconella californica Elizabeth McClintock 1965-3-21 s.n. San Mateo San Bruno Mountain. East of Brisbane power lines and north of summit ridge. Comment
  JROH2153  Medicago arabica John Hunter Thomas 1984-5-3 23340 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Rattlesnake Rock Comment
  JROH2158  Medicago lupulina Ann Lambrecht 2005-8-1 18 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road C just south of low-flow crossing, west side of road Comment
  JROH2174  Medicago polymorpha John Hunter Thomas 1988-5-5 24451 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC269473  Melica californica LeRoy Abrams 1901-5-1 1568 San Mateo Woodside Comment
  CAS-BOT-BC269476  Melica californica W. R. Dudley 1906-5-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Near San Mateo Comment
  JROH5298  Melica californica Herbert Dengler 1957-4-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC281410  Melica imperfecta K. Wagnon 1939-3-24 137 San Mateo Youngman's Canyon on Trinity Rd 2.5 miles E of Glen Ellen Comment
  JROH5307  Melica imperfecta John Hunter Thomas 1984-4-12 23296 San Mateo Jasper Ridge Biological Preserve, Stanford University. Path below dam in oak woodland. Comment
  CAS-BOT-BC281407  Melica imperfecta W. R. Dudley 1900-3-17 s.n. San Mateo Near top of Grade, S slope of Montara Mt Comment
  JROH5312  Melica subulata John Rawlings 2005-5-15 1006 San Mateo Jasper Ridge Biological Preserve, Stanford University; verge of Trail 2 from 100 to 250 yards west of the zoology cabin site 82 Comment
  JEPS27365  Melica torreyana Rimo Bacigalupi with Jim Roof and L. Heckard 1961-4-24 7625 San Mateo on Guadalupe Valley side San Bruno Mountain summit (just e of KRON Television tower and station, lateral ridge below and se of paved ridge-top road); San Bruno Mountain 304 Comment
  UCD88810  Melica torreyana Rimo Bacigalupi; Jim Roof and L. Heckard 1961-4-24 7625 San Mateo East of KRON television tower and station; on Guadalupe Valley side of the summit of San Bruno Mountain. 304 Comment
  JROH2188  Melilotus indicus John H. Thomas 1974-5-3 17238 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2829  Mentha X piperita Ruth Porter 1997-11-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; low flow crossing Comment
  JROH2804  Mentha pulegium M. N. Paulson 1914-10-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2826  Mentha spicata Carol Zabel 2006-8-23 64 San Mateo Jasper Ridge Biological Preserve, Stanford University; Dennis Martin site Comment
  JROH5838  Mentha suaveolens Ann Lambrecht 2007-8-15 30 San Mateo Jasper Ridge Biological Preserve, Stanford University; Corte Madera Creek Comment
  CAS-BOT-BC428901  Micranthes californica Margaret A. Barry 1938-3-13 233 San Mateo On Coal Mine Ridge Comment
  SEINET12273456  Micromeria chamissonis Unknown 22 May 1?32 6169 San Mateo Los Francos Woods Comment
  JROH1133  Micropus californicus var. californicus John Hunter Thomas 1988-5-3 24437 San Mateo Jasper Ridge Biological Preserve, Stanford University; picnic area Comment
  CAS-BOT-BC348719  Microseris bigelovii Kenton L. Chambers 1956-6-20 1048 San Mateo Pebble Beach near Pescadero Point Comment
  CAS-BOT-BC348721  Microseris bigelovii John H. Thomas 1963-5-20 10146 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC349027  Microseris douglasii subsp. douglasii Ned Cahill 1974-4-19 151 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH1138  Microseris douglasii subsp. douglasii John H. Thomas 1955-5-6 4993 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1140  Microseris douglasii subsp. douglasii John H. Thomas 1957-4-16 6658 San Mateo Jasper Ridge Biological Preserve, Stanford University; open serpentine area on top of ridge and adjacent slopes Comment
  JROH1153  Microseris douglasii subsp. douglasii John Rawlings, Toni Corelli 2010-5-19 0928 San Mateo Jasper Ridge Biological Preserve, Stanford University. Uphill from Trail 20. 88 Comment
  UC203060  Microseris douglasii subsp. douglasii A. D. E. Elmer May, 1903 4721 San Mateo Crystal Springs Lake Comment
  RSA107061  Microseris douglasii subsp. douglasii L. S. Rose 1956-5-28 56079 San Mateo Skyline Blvd W of San Mateo. 183 Comment
  CAS-BOT-BC349143  Microseris douglasii subsp. tenella Philip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Buckeye Canyon Comment
  CAS-BOT-BC349146  Microseris douglasii subsp. tenella H. A. Dutton 1900-3-25 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  RSA116721  Microseris douglasii subsp. tenella Harry A. Dutton 1900-4-17 s.n. San Mateo Woodside Comment
  CAS-BOT-BC349192  Microseris elegans R. E. Frenkel 1964-5-26 512 San Mateo On Portola Ridge Road, SFWD, 0.7 mile north of Sawyer Ridge Road 320 Comment
  RSA0001424  Microseris leucocarpha C. F. Baker 1902-5-4 808 San Mateo Woodside. Comment
  RSA119749  Microsteris gracilis subsp. humilis James I. McMurphy 1907-4-27 s.n. San Mateo Kings Mountains Comment
  HSC23941  Mimulus aurantiacus var. aurantiacus Mary Katherine Wicksten 1971-6-15 7 San Mateo Huddart Park, above Zwierlein Area Comment
  UC484301  Mimulus aurantiacus var. aurantiacus C. B. Wolf 1930-11-5 1804 San Mateo halfway up e side La Honda Grade; Santa Cruz Mtns. 304 Comment
  JROH4083  Mimulus douglasii Herbert Dengler 1971-3-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA53515  Mimulus glaucescens Edward L. Greene s.n. San Mateo Crystal Springs Lake. Frequent along banks, specially shady places. Comment
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Jul 13 2018
  JROH4088  Mimulus guttatus Herbert Dengler 1967-5-29 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; by CMCr -- E. side by trail that crosses creek to go to Tom's (Schultz). This is about 150' from S. corner of Biol. Preserve Comment
  JROH1699  Minuartia douglasii John H. Thomas 1967-5-10 12849 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM87730  Minuartia douglasii L. R. Abrams 1901-05 1563 San Mateo Woodside Comment
  CAS-BOT-BC388830  Minuartia douglasii W. R. Dudley 1897-6-5 s.n. San Mateo Santa Cruz Mountain Peninsula. Flat Rock, Waddell Creek Comment
  NY429333  Monardella franciscana A. D. E. Elmer 07 1903 4766 San Mateo San Pedro Comment
  CAS-BOT-BC214077  Monardella villosa Elizabeth McClintock; Carlyn Halde; Walter Knight; Irja Knight 1963-6-23 s.n. San Mateo Lower part of Colma Canyon, San Bruno Mountain Comment
  CAS-BOT-BC214075  Monardella villosa Elizabeth McClintock 1965-3-25 s.n. San Mateo North Power Line Ridge, San Bruno Mountain Comment
  CAS-BOT-BC214081  Monardella villosa Cherie Wetzel 1969-7-8 920 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  SEINET10582382  Monardella villosa subsp. franciscana A. Graff 1993-7-13 Graff 185 San Mateo Devil's Slide, in arroyos on inland side of Hwy. 1. Mostly past bloom. Coastal scrub. Comment
  JEPS121451  Monardella villosa subsp. villosa Adam C. Schneider 2013-5-17 127 San Mateo Crystal Springs Reservoir Comment
  JROH2834  Monardella villosa subsp. villosa John H. Thomas 1961-6-7 9529 San Mateo Jasper Ridge Biological Preserve, Stanford University; just above Searsville Lake Comment
  JROH2847  Monardella villosa subsp. villosa John Hunter Thomas 1982-6-7 21026 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  JROH1158  Monolopia gracilens D. E. Breedlove 1971-5-11 19333 San Mateo Jasper Ridge Biological Preserve, Stanford University. This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  CAS-BOT-BC444951  Montia fontana Evelina Cannon 1895-4-9 s.n. San Mateo South San Francisco Comment
  CAS-BOT-BC445195  Montia parvifolia W. R. Dudley 1895-6-6 s.n. San Mateo Santa Cruz Peninsula. By Pescadero Cr above Iversons. Comment
  CAS-BOT-BC445197  Montia parvifolia W. R. Dudley 1909-4-27 s.n. San Mateo Santa Cruz Mountain Peninsula. Pulpit Rock, San Mateo Canon [Canyon] Comment
  POM164023  Montia parvifolia A. D. E. Elmer 1903-05 4577 San Mateo Iversons Place Comment
  UC119712  Muilla maritima C. F. Baker 1902-3-30 423 San Mateo Crystal Springs Lake Comment
  UC1206482  Muilla maritima Le Roy Abrams 1902-4-13 2330 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC508585  Muilla maritima H. A. Dutton 1900-2-8 s.n. San Mateo Woodside, Santa Cruz Peninsula Comment
  CDA28803  Myosotis latifolia D. G. Kelch 2009-6-9 9 .403 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
  CDA34567  Myosotis latifolia M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 876 San Mateo Pacifica: San Pedro Valley County Park, along Brooks Creek Trail. 148 Comment
  RSA784399  Myosotis latifolia Peter Rubtzoff 1978-6-4 9203 San Mateo San Bruno Mountains: Saddle area on N side of Guadalupe Canyon Parkway W of Radio Road junction. Comment
  UCSB11661  Myosotis latifolia Olson, Jim 1962-4-15 San Mateo 8 miles north of junction with Portola State Park Road on Camp Pomponio Road; 10 miles southwest of La Honda 213 Comment
  CAS-BOT-BC101773  Myrica californica Walter Knight 1964-9-14 832 San Mateo Peak Mt. Comment
  CAS-BOT-BC101776  Myrica californica Ira L. Wiggins 1929-5-10 3678 San Mateo Roadside between Pigeon Point and Pescadero Comment
  JROH2704  Myriophyllum aquaticum John Hunter Thomas 1992-5-14 25223 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat ramp. Comment
  UC1101507  Myriophyllum sibiricum Malcolm A. Nobs and S. Galen Smith 1949-8-25 1553 San Mateo Marshes at Sharp Point. Comment
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Aug 8 2011
  CAS-BOT-BC260024  Nassella lepida Phillip C. Wheeler 1965-5-18 s.n. San Mateo San Bruno Mountain. Near base of mountain near Olivet Cemetary Comment
  UCD87964  Nassella lepida R. Tofsrud 1949-6-1 s.n. San Mateo East side of Crystal Springs Lake. Comment
  CAS-BOT-BC260232  Nassella pulchra Lewis S. Rose 1956-5-7 56071 San Mateo Skyline Boulevard W of San Mateo 182 Comment
  SBBG115413  Nassella pulchra B. Crampton 1962-6-11 6486 San Mateo ca. 5 mi W of Belmont, at jct of Ralston Ave and Skyline Blvd, Pulgas Ridge, along E side of lower Crystal Springs Reservoir Comment
  JROH1572  Nasturtium officinale John Hunter Thomas 1978-7-2 19242 San Mateo Jasper Ridge Biological Preserve, Stanford University; on dam Comment
  RSA127725  Nasturtium officinale John H. Thomas 1959-7-8 8018 San Mateo Pescadero Beach. Comment
  JROH1575  Nasturtium officinale Carol Zabel 1989-8-11 28 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek bank near low-flow crossing at Road C Comment
  JROH3200  Navarretia heterodoxa John H. Thomas 1969-5-28 15088 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET3479173  Navarretia heterodoxa L. S. Rose 1941-6-12 41269 San Mateo West of Redwood City, West of Redwood City, Emerald Lake 120 Comment
  JROH3197  Navarretia heterodoxa W. R. Dudley 1895-6-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Point of Rocks near Searsville Lake Comment
  SJSU42  Navarretia mellita C. D. Duncan 1925-7-13 San Mateo Mud Lakes, summit of Coal Mine Ridge above Corte Madera Cr Comment
  POM65127  Navarretia squarrosa Copeland 1903-6-5 3323 San Mateo Montara Point. Comment
  SD38213  Navarretia squarrosa Edith A. Purer 1933-7-27 5346 San Mateo Partially stabilized sand dunes near Pigeon Point Comment
  UC796712  Navarretia squarrosa Ira L. Wiggins 1949-7-2 12197 San Mateo Pescadero Beach Comment
  JEPS48591  Navarretia squarrosa James G. Daly 1934-1 382 San Mateo near road to La Honda (San Gregorio watershed, on ridge of Santa Cruz Mts., sw San Mateo County); Santa Cruz Mts., San Gregorio Comment
  SEINET12279167  Navarretia squarrosa Unknown 1933-1 10468 San Mateo near Baden Station Comment
  JROH3319  Navarretia viscidula H. J. Dengler 1973-5-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Above south-east edge of Searsville Lake, ca. 100 m. Growing in small 4' dia. patch by trail, about 15' outside oak (Q. agrifolia) cover. Comment
  UCSC007750  Nemophila humifusa Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  UC606949  Nemophila parviflora L. Constance 1938-5-16 2241 San Mateo 5 mi sw San Mateo (near Crystal Springs Lake); sw of San Mateo, near Crystal Springs Lake 121 Comment
  CAS-BOT-BC219486  Nemophila parviflora Walter Knight; Irja Knight 1965-4-26 s.n. San Mateo San Bruno Mountain. In Devil's Arroyo Comment
  JROH2747  Nemophila parviflora var. parviflora Toni Corelli 2010-4-21 357 San Mateo Jasper Ridge Biological Preserve, Stanford University. Upslope of Trail 1, just east of landslide area 83 Comment
  UCR3596  Notholithocarpus densiflorus Wm. Horn Jr. 1963-8-26 630826- 01 San Mateo 7 mi. south of Skyline Blvd. - Half Moon Bay [Hwy 92] junction on Skyline (State Route 5) 610 Comment
  HSC23906  Notholithocarpus densiflorus var. densiflorus Mary Katherine Wicksten 1971-6-17 84 San Mateo Huddart Park; along road to family campground, near Madrone Area Comment
  JEPS108618  Oemleria cerasiformis Roger Raiche 1983-7-18 10167 San Mateo San Bruno Mountain, head of canyon, Crocker Industrial Park Comment
  JROH3715  Oemleria cerasiformis John Hunter Thomas 1985-4-25 23565 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA451812  Oemleria cerasiformis L. S. Rose 1937-3-14 37002 San Mateo Moist Hills, Emerald Lake. 198 Comment
  UC555631  Oemleria cerasiformis Herbert L. Mason 1927-4-23 3693 San Mateo near Pescadero Creek (along La Honda road) Comment
  JROH284  Oenanthe sarmentosa L. R. Abrams 1919-8-20 7349 San Mateo Jasper Ridge Biological Preserve, Stanford University; head of Searsville Lake Comment
  POM132876  Oenanthe sarmentosa A. D. E. Elmer 1903-07 4690 San Mateo Alpine School House. Comment
  UCSC004918  Oenothera elata Monica Larenas 1985-6-1 22 San Mateo Hwy 1, 1 mi N of Bean Hollow Comment
  UC2061401  Oenothera elata subsp. hookeri H. W. Johansen 1958-5-18 23 San Mateo Coast Hwy 1, S of Pescadero Comment
  UC873965  Oenothera elata subsp. hookeri L. R. Abrams and I. L. Wiggins 1939-6-3 438 San Mateo 2 mi n Pigeon Point Lighthouse Comment
  RSA269270  Oenothera perennis T. C. Fuller 1970-5-12 19529 San Mateo Emily (Mrs. Hillary) Brown Prop., 3045 Ralston Ave., Burlingame Comment
  JEPS11666  Orobanche californica subsp. californica Mrs. Clara Hunt Sep 1908 San Mateo Farallone City. Comment
  CAS-BOT-BC499690  Orobanche californica subsp. californica Helen D. Geis 1901-10-26 s.n. San Mateo Half Moon Bay Comment
  SEINET8466936 Image available Orobanche grayana Tom Hensel 1973-7-10 267 San Mateo Pigeon Point Lighthouse, 8.5 mi N of San Mateo-Santa Cruz Co. line Comment
  RSA40251  Orthocarpus densiflorus L. S. Rose 1948-5-16 48113 San Mateo Emerald Lake, west of Redwood City. 152 Comment
  POM286520  Orthocarpus densiflorus Arthur L. Cohen 1935-4-21 628 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  RSA130958  Orthocarpus erianthus var. erianthus Hester R. Davis 1920-4-8 s.n. San Mateo Near San Francisquito Creek. Comment
  POM126837  Orthocarpus erianthus var. roseus R. L. Pendleton 1907-4-20 618 San Mateo Ocean View. 122 Comment
  RSA155567  Orthocarpus erianthus var. roseus L. S. Rose 1961-4-5 61034 San Mateo San Bruno Mountains. 366 Comment
  RSA130824  Orthocarpus faucibarbatus var. albidus W. R. Dudley 1896-4-17 s.n. San Mateo Near Pebble Beach, Pescadero. Comment
  RSA184977  Orthocarpus lithospermoides L. S. Rose 1966-5-2 66034 San Mateo Emerald Lake, west of Redwood City. 91 Comment
  POM286519  Orthocarpus lithospermoides Arthur L. Cohen 1935-4-21 636 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  POM126843  Orthocarpus pusillus R. L. Pendleton 1907-4-20 590 San Mateo Lake Merced. 46 Comment
  RSA119325  Osmorhiza berteroi S. S. Tillett, I. Sternback 1956-6-24 540 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  RSA176714  Osmorhiza berteroi John H. Thomas 1963-6-23 10168 San Mateo Jasper Ridge Biological Experimental Area, about 5 mi SW of Palo Alto. Along road at Westridge end of ridge Comment
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Feb 15 2013
  UC21176  Osmorhiza berteroi J. Burtt Davy 1893-6-17 788 San Mateo Belmont Comment
  JROH302  Osmorhiza berteroi John Hunter Thomas 1992-4-30 25174 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5563436  Oxalis corniculata H. S. Gentry 1931-1 101 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  UCR2998  Oxalis incarnata Wm. Horn Jr. 1963-4-7 630407- 01 San Mateo San Francisco Bay, Hillsborough, 2240 Redington Road 30 Comment
  JROH3092  Oxalis oregana M. N. Paulson 1915-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC253972  Parapholis incurva V. F. Hesse 1964-5-26 3210 San Mateo Near (S of) Pigeon Point 15 Comment
  UC1101573  Parapholis incurva Malcolm A. Nobs and S. Galen Smith 1949-8-26 1604 San Mateo Hwy 1, 0.6 mi n Pigeon Point Comment
  UCD88650  Parapholis incurva August L. Hormay 1932-5-29 s.n. San Mateo San Bruno. Comment
  JROH5344  Paspalum distichum L. R. Abrams 1914-7-1 5117 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Comment
  JEPS40981  Pedicularis densiflora Lewis S. Rose 1964-3-23 64013 San Mateo w of Redwood City; Emerald Lake 121 Comment
  JROH4094  Pedicularis densiflora Le Roy Abrams 1901-1-27 1102 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  RSA169354  Pedicularis densiflora L. S. Rose 1964-3-23 64013 San Mateo Emerald Lake, W of Redwood City. 122 Comment
  JROH4106  Pedicularis densiflora Duncan M. Porter 1961-1-18 736 San Mateo Jasper Ridge Biological Preserve, Stanford University; Westridge end of Jasper Ridge Comment
  JROH4109  Pedicularis densiflora Charles F. Cleland 1963-3-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near picnic area below Searsville Dam near Searsville Creek Comment
  UCSB17558  Pedicularis densiflora Schulte, John 1963-4-14 San Mateo Top of Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  RSA130986  Pedicularis dudleyi W. R. Dudley 1903-5-2 s.n. San Mateo Bank near fork of road to Old Page Mill Comment
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Feb 18 2016
  SBBG33318  Pedicularis dudleyi A. D. E. Elmer -Jun-1903 4289 San Mateo Pescadero Crk (Iverson's); ISOTYPE Comment
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Oct 5 2011
  CAS-BOT-BC207031  Pelargonium vitifolium John Thomas Howell 1932-12-21 10864 San Mateo Near Pescadero. Comment
  UC729633  Pelargonium vitifolium Carl B. Wolf 1929-5-10 3704 San Mateo s of Pescadero (Pigeon Pt); Pigeon Pt. 30 Comment
  SEINET4555767 Image available Pellaea andromedifolia John P. Young 1925-1-9 San Mateo Burlingame Comment
  POM281947  Pellaea mucronata Lyman Benson 1928-12-15 830 San Mateo La Honda Road, Santa Cruz Mountain Range 366 Comment
  CAS-BOT-BC265731  Pennisetum villosum John H. Thomas 1969-6-6 15517 San Mateo Menlo Park, near El Camino and Cambridge Comment
  CAS-BOT-BC330497  Pentachaeta bellidiflora Ned Cahill 1974-4-19 154 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  CAS-BOT-BC77010  Pentagramma triangularis subsp. triangularis Ned Cahill 1974-5-13 244 San Mateo Chaparral near the intersection of Canada and Edgewood Roads, about 3 mi westward from Redwood City. Comment
  RSA430457  Perideridia kelloggii Lyman Benson 1974-02 8485 San Mateo La Honda Road 244 Comment
  JROH3243  Persicaria amphibia W. R. Dudley 1909-10-31 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Searsville Lake. Comment
  JROH3248  Persicaria amphibia John H. Thomas 1974-8-3 17496 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3280  Persicaria maculosa Toni Corelli 2004-10-20 281 b San Mateo Jasper Ridge Biological Preserve, Stanford University; east of Road C, below low flow crossing, on a moist embankment 80 Comment
  JROH3277  Persicaria maculosa John Hunter Thomas 1982-11-6 21201 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta along edge of Searsville Lake. Comment
  CAS-BOT-BC419388  Persicaria punctata W. R. Dudley 1897-10-10 s.n. San Mateo Toward Pilar Pt. Comment
  CAS-BOT-BC330252  Petasites frigidus var. palmatus A. W. Herre; Ira L. Wiggins 1939-3-25 19 A San Mateo Headwaters of Pescadero Creek, about 8 miles N of Big Basin Redwood Park Comment
  RSA116727  Petasites frigidus var. palmatus M. N. paulson 1915-04 s.n. San Mateo La Honda Grade Comment
Read comments
Sep 11 2011
  UC24324  Phacelia ciliata var. ciliata E. L. Greene May 1886 San Mateo Belmont Comment
  UC1084388  Phacelia divaricata G. Thomas Robbins 1937-4-11 96 San Mateo near Spring Valley Lakes (along road to Woodside) Comment
  UC672334  Phacelia divaricata Herbert L. Mason 1927-4-23 3687 San Mateo roadside between La Honda and Pescadero Creek Comment
  POM65457  Phacelia divaricata A. D. E. Elmer 1903-05 4481 San Mateo Crystal Springs Lake. Comment
  RSA101024  Phacelia malvifolia G. Oberlander 1950-4-2 579 San Mateo Near San Andreas Lake, San Francisco Watershed Reserve Comment
  RSA184848  Phacelia malvifolia L. S. Rose 1965-5-3 65057 San Mateo San Bruno Mountain, Colma Canyon. 61 Comment
  CHSC56636  Phalaris aquatica Steven Triano 1988-5-24 176 San Mateo On the sw corner of the jct. of Portola Road and Old La Honda Road, ca 3.2 mi s of Woodside. 115 Comment
  JROH5357  Phalaris aquatica John Hunter Thomas 1978-7-14 19261 San Mateo Jasper Ridge Biological Preserve, Stanford University. New low flow crossing of San Francisquito Creek. Comment
  JROH5360  Phalaris aquatica John Hunter Thomas 1981-9-24 20745 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC259002  Phalaris californica Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Base of Quarry #2 Comment
  CAS-BOT-BC259013  Phalaris californica W. R. Dudley 1905-6-19 s.n. San Mateo Santa Cruz Mountain Peninsula. New Grade Road, near top of Black Mt. Comment
  CAS-BOT-BC250646  Phalaris minor John Thomas Howell 1937-7-5 13099 San Mateo Redwood City along Bayshore Highway Comment
  RSA22129  Phalaris minor J. T. Howell 1937-7-5 13099 San Mateo Redwood City, along Bayshore Highway Comment
  UCD89172  Phalaris minor A. D. E. Elmer 1903-6-1 4427 San Mateo Crystal Springs Lake. Comment
  JROH2768  Pholistoma auritum var. auritum John Hunter Thomas 1981-5-5 20540 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC171183  Phoradendron serotinum subsp. tomentosum John H. Thomas 1960-3-1 8536 San Mateo Jasper Ridge, about 5 miles SW of Palo Alto 182 Comment
  JROH4289  Phoradendron serotinum subsp. tomentosum John H. Thomas 1960-3-1 8536 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  UC2056117  Phyllospadix scouleri K. Dickey 2015-6-18 San Mateo Pescadero, beds south of promontory Comment
  RSA232065  Physalis philadelphica John H. Thomas 1971-10-27 16026 San Mateo Near intersection of Alpine Road and Interstate Hwy 280, behind the Stanford Campus. Comment
  CAS-BOT-BC142186  Physocarpus capitatus Walter Knight 1963-6-24 s.n. San Mateo Quarry 4 - San Bruno Mountain Comment
  JROH3721  Physocarpus capitatus D. E. Breedlove 1971-5-31 19375 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  CAS-BOT-BC142183  Physocarpus capitatus W. R. Dudley 1902-6-1 s.n. San Mateo Steven's Creek Road, lower part - Santa Cruz Peninsula Comment
  SEINET11809971  Picris echioides E. A. Purer 1933-1 5417 San Mateo Belmont Comment
  IRVC7620  Pinus patula P. W. Rundel 1964-8-8 1441 San Mateo Menlo Park; North Lemon Avenue 18 Comment
  JROH4769  Piperia John Hunter Thomas 1991-4-4 25081 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET7876345 Image available Pittosporum undulatum A. T. Whittemore 2002-1 02 -001 San Mateo Garden of 418 Hillway Dr., Redwood City 98 Comment
  SJSU15930  Plagiobothrys bracteatus Toni Corelli, John Rawlings 2016-4-29 1768 San Mateo Cascade Field along Atkinson Bluff Trail, north of Cascade Cr. Trail, in Ano Nuevo State Park 11 Comment
  POM64748  Plagiobothrys chorisianus C. F. Baker 1902-3-30 429 San Mateo Crystal Springs Lake Comment
  UC1063805  Plagiobothrys chorisianus H. S. Yates 1935-5-8 5216 San Mateo 2 mi s Pescadero; Santa Cruz Quad. 60 Comment
  UC73677  Plagiobothrys chorisianus Harley P. Chandler 1901-3-15 806 San Mateo cliffs w Colma Comment
  UC78191  Plagiobothrys chorisianus Mrs. K. Brandegee 1890-5-22 San Mateo La Honda Comment
  CAS-BOT-BC228162  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1894-4-21 s.n. San Mateo The Santa Cruz Mountain Peninsula. Near Crystal Springs Reservoir Comment
  CAS-BOT-BC228154  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1893-5-27 s.n. San Mateo The Santa Cruz Mountain Peninsula. By road from Hayman's Ranch to San Gregorio Creek Comment
  SDSU5437  Plagiobothrys chorisianus var. hickmanii D. F. Howe 1967-4-13 4342 San Mateo Pebble Beach. Comment
  JROH1423  Plagiobothrys nothofulvus John H. Thomas 1968-4-19 14291 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1428  Plagiobothrys nothofulvus John H. Thomas 1975-4-18 17785 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389766  Plagiobothrys tenellus R. D. Hennessey 1964-4-26 s.n. San Mateo Area where Pilarcitos Creek empties into ocean Comment
  CHSC24897  Plantago erecta B. A. Rosene 1976-4-18 1 San Mateo Ca. 2.4 km nw of entrance to California State Game Refuge. 182 Comment
  JEPS127787  Plantago erecta Adam C. Schneider with C. Matt Guilliams 2013-4-7 58 San Mateo Along dirt road running parallel to overhead power transmission lines. GPS coordinates approximate. Comment
  JROH3111  Plantago erecta John H. Thomas 1974-4-4 17084 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3125  Plantago erecta John Hunter Thomas 1991-5-2 25017 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3130  Plantago lanceolata John H. Thomas 1971-4-3 15743 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  UCSC007768  Plantago lanceolata Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC157692  Plantago major Peter Rubtzoff; Roman Gankin 1975-9-11 8371 San Mateo San Bruno Mountain. Pond NW of and across old Guadalupe Road from Saddle area (which is located on N side of Guadalupe Canyon Parkway, W of Radio Road junction Comment
  POM209656  Plantago maritima D. D. Keck 1934-7-7 2966 San Mateo Pigeon Point. Comment
  JEPS22008  Plantago maritima var. californica G. Thomas Robbins 1958-6-9 3872 San Mateo about 0.5 mi s Pescadero Point (above the beach at Pebble Beach); Pebble Beach Comment
  JEPS7154  Plantago maritima var. californica James G. Daly 1934-1 478 San Mateo mouth of San Gregorio Creek San Gregorio Creek Comment
  UC888462  Plantago maritima var. californica Lewis S. Rose 1937-9-5 37645 San Mateo Mussel Rocks 60 Comment
  CAS-BOT-BC92013  Platystemon californicus A. D. E. Elmer 1903-6-1 4853 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC92014  Platystemon californicus John H. Thomas 1974-5-7 17317 San Mateo San Bruno Mountain. Along Guadalupe Parkway opposite school. Comment
  SEINET14400463  Plectritis congesta Unknown 1938-5-4 718 San Mateo San Mateo County Comment
  JROH4241  Plectritis congesta subsp. brachystemon H. J. Dengler 1972-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By trail N.E.J.R. to S.F. Creek, at point where deer trail joins trail to creek, ca. 20' below junco nesting site. Comment
  POM284728  Plectritis macrocera subsp. macrocera Arthur L. Cohen 1935-4-21 635 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  NY278707  Plectritis nitida A. A. Heller 1907-5-28 8578 San Mateo Above Crystal Springs on the Half Moon Bay road Comment
  UC204163  Pleuricospora fimbriolata A. D. E. Elmer Jun 1903 5075 San Mateo on Big Basin trail, Iverson's Place Comment
  CAS-BOT-BC458187  Pleuricospora fimbriolata W. R. Dudley 1895-6-7 s.n. San Mateo Santa Cruz Peninsula: between Pescadero Creek and Butano, back of Iversons Comment
  UCD92188  Poa August L. Hormay 1932-5-29 s.n. San Mateo Bay shore, San Bruno. Comment
  UC1537245  Poa annua Gordon H. True Jr. 1937-3-31 619 San Mateo Salada Beach Rd 60 Comment
  JROH5618  Poa bulbosa subsp. vivipara John Rawlings 2014-5-3 1219 San Mateo Jasper Ridge Biological Preserve, Stanford University. At downhill side of trail 14 about midway between dam and road C, near the lone Amelanchier utahensis. 98 Comment
  JEPS112938  Poa douglasii Dean W. Taylor 2002-3-20 17956 San Mateo Franklin Point, in dune sand just inland from the actual point 3 Comment
  UC1537366  Poa douglasii Gordon H. True Jr. 1937-3-31 618 San Mateo Salada Beach 60 Comment
  JROH5409  Poa howellii John H. Thomas 1964-4-19 10329 San Mateo Jasper Ridge Biological Preserve, Stanford University. Area below dam in among redwoods near creek. Comment
  CAS-BOT-BC247422  Poa pratensis Phillip C. Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. No. West Radio Road Comment
  SEINET3130238  Poa secunda L. R. Abrams 1902-5-4 2408 San Mateo Woodside Comment
  CAS-BOT-BC243116  Poa secunda subsp. secunda John H. Thomas 1971-5-2 15839 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles W from Redwood City 152 Comment
  CAS-BOT-BC243124  Poa secunda subsp. secunda L. R. A. 1902-5-4 2408 San Mateo Woodside Comment
  JROH5424  Poa secunda subsp. secunda Herbert Dengler 1962-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; N of Searsville Rocks 100 ft from S. F. Cr. Comment
  CAS-BOT-BC244246  Poa unilateralis John H. Thomas 1955-4-6 4841 San Mateo E facing slope of San Bruno Mountain just N of South San Francisco 91 Comment
  CAS-BOT-BC244250  Poa unilateralis H. L. Mason 1921-5-28 s.n. San Mateo Pebble Peach, near Pescadero Comment
  JROH2854  Pogogyne serpylloides John H. Thomas 1961-4-29 9191 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0022142  Pogogyne serpylloides John H. Thomas 1961-5-7 9270 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  UC23973  Polemonium carneum J. Burtt Davy 1895-4-20 1040 San Mateo Pilarcitos Comment
  UC23975  Polemonium carneum C. T. Blake 1893-5-27 San Mateo Pilarcitos Reservoir Comment
  CAS-BOT-BC413803  Polycarpon tetraphyllum Robert I. Gilbreath 1974-5-1 0062 San Mateo On hills near Hillsborough 152 Comment
  UC17523  Polygala californica J. Burtt Davy Jun 21 1893-Jun 23 1893 1145 San Mateo Pilarcitos Lake and Canyon Comment
  POM165063  Polygonum amphibium var. stipulaceum A. D. E. Elmer 1903-07 4650 San Mateo San Pedro. Comment
  UC1192341  Polygonum aviculare subsp. aviculare Malcolm A. Nobs and S. Galen Smith 1949-8-27 1618 San Mateo salt marshes e Redwood City Comment
  POM192783  Polygonum lapathifolium W. R. Dudley 1909-10-31 s.n. San Mateo Searsville Lake. The Santa Cruz Mtn Peninsula. Comment
  UCR240610  Polygonum paronychia T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3526 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  UC733135  Polygonum punctatum Roxana S. Ferris 1945-9-25 11107 San Mateo Pedro Point; State Hwy 1 Comment
  CAS-BOT-BC76904  Polypodium californicum Roxana S. Ferris 1921-4-7 2133 San Mateo Santa Cruz Mountain Peninsula - San Bruno Mt. 213 Comment
  CAS-BOT-BC76947  Polypodium californicum Ned Cahill 1974-5-13 249 San Mateo Chaparral near the intersection of Canada and Edgewood Roads, about 3 mi westward from Redwood City. Comment
  JROH77  Polypodium californicum John H. Thomas 1967-4-28 12729 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  SBBG32442  Polypodium californicum L. S. Rose 1964-2-6 64001 San Mateo King's Mtn 609 Comment
  JROH78  Polypodium californicum John H. Thomas 1970-1-1 15497 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JEPS79496  Polypodium glycyrrhiza Edward Lee with A. Carter, E. Crum, and C. Belshaw 1936-1-26 1721 San Mateo 2.6 mi out of Woodside (e side Cahill Ridge, Kings Mt. Rd.) Comment
  UC42919  Polypodium scouleri J. Burtt Davy 1893-6-22 San Mateo top of Pilarcitos Canyon Comment
  CAS-BOT-BC72109  Polypodium scouleri Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mt., Cable Ravine Comment
  RSA785882  Polypodium scouleri Peter Rubtzoff 1977-11-24 9143 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  JROH5436  Polypogon interruptus W. Lennihan 1989-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito creek -- above low-flow causeway on left, under trees in rocks. 81 Comment
  JROH5439  Polypogon monspeliensis H. J. Dengler 1961-7-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek not far from where it trends east from Jasper Ridge. Comment
  JROH5441  Polypogon monspeliensis John H. Thomas 1963-6-23 10160 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA187461  Polypogon monspeliensis John H. Thomas 1965-12-19 11458 San Mateo Jasper Ridge Biological Experimental Area, 5 miles SW of Palo. Comment
  RSA276359  Polypogon monspeliensis Jane Turner, Francis M. Ball 1962-7-7 SK&F- 1082 San Mateo Highway 1, ca. 10 miles N of Santa Cruz County line. Comment
  UC1100390  Polypogon monspeliensis Herbert L. Mason and Verne Grant 1946-8-28 13094 San Mateo pond on Highway 5 about 3 mi s Daly City Road Comment
  UCD91350  Polypogon monspeliensis Herbert L. Mason; Verne Grant 1946-8-28 13094 San Mateo On Highway 5, about 3 miles south of Daly City Road. Comment
  CAS-BOT-BC237588  Polypogon viridis George Oberlander 1950-6-3 1028 San Mateo San Francisco Watershed Reserve. Upper Crystal Spring Lake Comment
  CAS-BOT-BC237589  Polypogon viridis Philip Wheeler 1965-6-8 s.n. San Mateo San Bruno Mountain. Crocker Industrial Park Comment
  RSA596241  Polypogon viridis Peter Rubtzoff, Walter Knight, I. Knight 1987-6-26 9793 San Mateo San Bruno Mountains; 'Saddle' area on north side of Guadalupe junction; near road in the area of the upper- most part of East Fork Colma Creek in the northwest corner of Fog Forest. Comment
  CAS-BOT-BC72229  Polystichum dudleyi Alice Eastwood 1933-5-31 s.n. San Mateo Butano Canyon Comment
  JROH45  Polystichum dudleyi Lawrence J. Winship 1974-11-2 1 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC6609  Polystichum dudleyi W. R. Dudley 1903-5-2 s.n. San Mateo Near bridge, Peter's Creek, Santa Cruz Mts. Comment
  CAS-BOT-BC76603  Polystichum munitum Ira L. Wiggins 1925-5-24 1731 San Mateo Along county road from Pescadero to Pebble Beach along rich swamp land just before coming to the artichoke lands Comment
  CAS-BOT-BC76647  Polystichum munitum Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  IRVC3912  Polystichum munitum P. W. Rundel 1963-6-11 1128 San Mateo San Fransisco Bay drainage area; Old La Honda Road. Santa Cruz Mountain Range 305 Comment
  RSA189827  Polystichum munitum Delzie Demaree 1932-2-14 8922 San Mateo Kings Mountain. P.O. San Carlos. Comment
  CAS-BOT-BC105565  Populus trichocarpa W. R. Dudley 1902-9-21 s.n. San Mateo By Whipple Road, So. Crystal Springs Lake and west of Serpentine - Santa Cruz Peninsula Comment
  UC1174501  Populus trichocarpa W. R. Dudley 1902-9-21 San Mateo on Whipple Road s Crystal Springs Lake (and w of Serpentine); Santa Cruz Peninsula, s of Crystal Springs Lake Comment
  UCSB271  Potamogeton amplifolius McPherson, D. 1960-8-1 San Mateo Ventura Comment
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2
  UC438  Potamogeton illinoensis J. Burtt Davy Jun 21 1893-Jun 23 1893 1132 San Mateo Pilarcito Lake and Canyon Pilarcito Lake Comment
  CAS-BOT-BC453734  Potamogeton illinoensis George Oberlander 1949-8-20 386 San Mateo San Francisco Watershed Reserve. San Andreas Lake Comment
  UC652561  Potamogeton pectinatus Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9293 San Mateo Ano Nuevo Point Comment
  UC814176  Potamogeton pectinatus Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9293 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC454007  Potamogeton pectinatus W. R. Dudley 1903-7-21 s.n. San Mateo Near Hallidie's, Portola Comment
  CAS-BOT-BC454010  Potamogeton pectinatus Ira L. Wiggins 1935-6-29 8051 San Mateo Pescadero Creek, about 1 mile west of Pescadero Comment
  CDA857  Potamogeton pusillus Wm. Davis 1964-6-17 San Mateo Lake on Purcell property, San Mateo. 0 Comment
  CAS-BOT-BC141932  Potentilla anserina subsp. pacifica David D. Keck 1934-7-7 2969 San Mateo Ano Nuevo Point at Ano Nuevo Creek Comment
  JEPS44182  Potentilla anserina subsp. pacifica Alice King 1908-7-25 San Mateo near San Francisco (Moss Beach); Moss Bearch Comment
  JROH3388  Primula hendersonii John Hunter Thomas 1982-3-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Rattlesnale Rocks Comment
  JROH4668  Prosartes hookeri John H. Thomas 1964-4-19 10328 San Mateo Jasper Ridge Biological Preserve, Stanford University. Area below dam in among redwoods near creek. Comment
  CAS-BOT-BC516346  Prosartes hookeri D. D. Davis 1903-5-2 s.n. San Mateo Near La Honda, Santa Cruz Peninsula Comment
  CAS-BOT-BC516350  Prosartes hookeri George Oberlander 1950-3-11 587 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve Comment
  CAS-BOT-BC516359  Prosartes hookeri E. A. McGregor 1908-3-28 s.n. San Mateo Kings Mountain Comment
  CAS-BOT-BC517397  Prosartes smithii H. L. Mason 1917-4-1 s.n. San Mateo Kings Mountain Comment
  JROH2868  Prunella vulgaris var. lanceolata Toni Corelli 2005-7-13 294 b San Mateo Jasper Ridge Biological Preserve, Stanford University; lower fire Road C, about 20 m south of low flow crossing along road 80 Comment
  UC1124440  Prunella vulgaris var. lanceolata A. E. Wieslander 1935-2-3 508 San Mateo 0.5 mi se Pigeon Pt.; Santa Cruz Quad. Comment
  POM209848  Prunella vulgaris var. lanceolata D. D. Keck 1934-7-7 2935 San Mateo South of the mouth of Tunitas Creek, on slopes overlooking ocean. Comment
  RSA101018  Prunella vulgaris var. lanceolata G. Oberlander 1941-7-30 331 San Mateo Cahill Ridge, San Francisco Watershed Reserve Comment
  CAS-BOT-BC158173  Prunus emarginata Peter H. Raven 1950-4-16 1810 San Mateo Above [Visitation] Visitacion Valley, San Bruno Mts. 182 Comment
  CAS-BOT-BC158176  Prunus emarginata Peter H. Raven 1950-4-16 1810 San Mateo Above [Visitation] Visitacion Valley, San Bruno Mts. 182 Comment
  CAS-BOT-BC154500  Prunus ilicifolia J. H. Thomas 1954-5-28 4239 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  RSA187271  Prunus ilicifolia John H. Thomas 1954-5-28 4239 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 30 Comment
  RSA112470  Prunus virginiana var. demissa James I. McMurphy 1906-4-28 16 San Mateo Corte de Madera Creek. Santa Cruz Mtns. Comment
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Dec 13 2015
  CAS-BOT-BC356473  Pseudognaphalium beneolens Roxana S. Ferris 1920-9-3 2052 San Mateo Santa Cruz Mountain Peninsula. Near upper Mud Lake, Coal Mine ridge Comment
  CAS-BOT-BC356858  Pseudognaphalium californicum A. D. E. Elmer 1903-6-1 4291 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC356859  Pseudognaphalium californicum John H. Thomas 1961-5-7 9303 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC357122  Pseudognaphalium luteoalbum Fred Hemphill 1973-3-1 622 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH790  Pseudognaphalium luteoalbum John Rawlings 2011-12-23 1099 San Mateo Jasper Ridge Biological Preserve, Stanford University. Boat dock near Searsville Lab (Searsville Lab Landing). 104 Comment
  SJSU16004  Pseudognaphalium luteoalbum John Rawlings, Ken Hickman 2016-7-21 1950 San Mateo Serpentine seep area (Fountain thistle seep) up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  CAS-BOT-BC344870  Pseudognaphalium luteoalbum Peter Rubtzoff 1977-4-14 8947 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC357131  Pseudognaphalium luteoalbum Lewis S. Rose 1936-2-12 36005 San Mateo Burlingame 91 Comment
  HSC5701  Pseudognaphalium luteoalbum R. E. Jones 1966-4-4 37 San Mateo Ano Nuevo Beach Comment
  JROH777  Pseudognaphalium luteoalbum John H. Thomas 1974-10-29 17649 San Mateo Jasper Ridge Biological Preserve, Stanford University; Small peninsula created by drainage channel cut to accomodate water from Corte Madera Cr. Comment
  CAS-BOT-BC357511  Pseudognaphalium ramosissimum Robert S. Cox, Jr. 1946-8-7 s.n. San Mateo Near Pescadero Comment
  JEPS33995  Pseudognaphalium ramosissimum James G. Daly 407 San Mateo Upper Mindego canyon Santa Cruz Mts., San Gregorio watershed, Upper Mindego canyo Comment
  SBBG45075  Pseudognaphalium ramosissimum L. S. Rose 1935-8-13 35568 San Mateo Salada 30 Comment
  SD39789  Pseudognaphalium stramineum Edith A. Purer 1933-7-27 5359 San Mateo Pigeon Point Comment
  UC135072  Pseudognaphalium stramineum Dr. E. B. Copeland 1903-6-18 3211 San Mateo Montara Point Montara Point (on face of cliff and on upper beach) Comment
  CAS-BOT-BC85910  Pseudotsuga menziesii W. R. Dudley 1897-4-10 s.n. San Mateo Santa Cruz Mountain Peninsula, above Alpine School House, Black Mt. Comment
  UC311070  Pseudotsuga menziesii var. menziesii A. D. E. Elmer 1903-4-1 4562 San Mateo Kings Mountain Comment
  CAS-BOT-BC362023  Psilocarphus tenellus Peter H. Raven 1950-4-16 1804 San Mateo Summit ridge, San Bruno Mts. 243 Comment
  JROH1188  Psilocarphus tenellus John Hunter Thomas 1983-4-14 21406 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC72654  Pteridium aquilinum John H. Thomas 1961-5-7 9253 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH13  Pteridium aquilinum var. pubescens John Hunter Thomas 1981-4-5 20284 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek from Redwood area to Zoology Cabin ruins Comment
  CAS-BOT-BC421315  Pterostegia drymarioides John H. Thomas 1961-5-13 9333 San Mateo At Franklin Point. Comment
  RSA149177  Pterostegia drymarioides John H. Thomas 1961-5-13 9333 San Mateo Franklin Point. Comment
  SJSU2275  Pterostegia drymarioides C. W. Sharsmith 1947-4-13 6756 San Mateo Pescadero Beach near Pescadero Point Comment
  CDA36281  Puccinellia maritima Michael Perlmutter 2011-6-15 San Mateo South San Francisco; Oyster Point Marina. 0 Comment
  CDA36720  Puccinellia maritima Michael Perlmutter 2011-6-15 San Mateo Burlingame, Sanchez Marsh. 0 Comment
  UCD92953  Puccinellia maritima William Anderson 1968-4-20 s.n. San Mateo Redwood City. NE of the boat harbor on Bait Island. Comment
  POM88668  Pyrrocoma racemosa L. R. Abrams 1901-09 2211 San Mateo Cooley Landing. Comment
  UC149267  Pyrrocoma racemosa var. racemosa L. R. Abrams 1906-9-29 San Mateo Cooleys Landing Comment
  CAS-BOT-BC362361  Pyrrocoma racemosa var. racemosa L. R. Abrams 1906-9-29 s.n. San Mateo Cooley's [Cooley] Landing Comment
  JROH2531  Quercus John H. Thomas 1974-4-4 17087 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC61707  Quercus agrifolia Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Buckeye Canyon, near ridge, San Bruno Mountain Comment
  SEINET12027457  Quercus agrifolia L. S. Rose 1938-1 38313 San Mateo 122 Comment
  SEINET9326838  Quercus agrifolia Unknown 1938-11-6 San Mateo Woodside, hill slopes. Comment
  JROH2466  Quercus berberidifolia John Rawlings 2007-12-26 1065 San Mateo Jasper Ridge Biological Preserve, Stanford University; a few yards uphill of Trail I in serpentine woodland below lost serpentine prairie 85 Comment
  CAS-BOT-BC62307  Quercus chrysolepis Stkinson 1902-11-30 s.n. San Mateo Santa Cruz Mountain Peninsula, King's Mt. Comment
  JROH5803  Quercus douglasii John Rawlings, Bill Gomez 2016-7-28 1911 A San Mateo Jasper Ridge Biological Preserve, Stanford University; north side Rd F in blue oak woodland west of serpentine prairie 182 Comment
  CAS-BOT-BC94277  Quercus durata John H. Thomas 1971-5-2 15858 San Mateo near intersection of Canada and Edgewater roads. About 4 miles SW of center of Redwood City 304 Comment
  POM270113  Quercus durata Lyman Benson 1932-8-1 4029 San Mateo Stanford University, Santa Cruz Mt. Range, Corte Madera Creek watershed. 122 Comment
  UCD46005  Quercus durata Herb Dengler 1992-3-5 s.n. San Mateo Jasper Ridge Biological Preserve (of Stanford University) in southeast part of preserve, San Meteo County, California. Comment
  HSC8315  Quercus durata var. durata L. S. Rose 1964-9-5 64068 San Mateo Emerald Lake, W of Redwood City 244 Comment
  JROH2479  Quercus durata var. durata Arthur Spiegler 1952-5-10 87 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG39513  Quercus durata var. durata L. S. Rose 1970-7-21 San Mateo Emerald Lake, W of Redwood City 243 Comment
  CAS-BOT-BC105394  Quercus kelloggii E. A. McGregor 1908-3-30 s.n. San Mateo Kings Mt. 365 Comment
  CAS-BOT-BC105400  Quercus kelloggii James McMurphy 1909-3-20 s.n. San Mateo Woodside Comment
  HSC23989  Quercus kelloggii Mary Katherine Wicksten 1971-6-29 133 San Mateo Huddart Park Ridge between Oak Area and Redwood Area Comment
  JROH2496  Quercus kelloggii A. D. E. Elmer 1903-5-1 4520 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  LA205320  Quercus kelloggii David D. Keck; 1932-3-6 1395 San Mateo Santa Cruz Mountains, La Honda road above Searsville Lake Comment
  POM270206  Quercus kelloggii Lyman Benson 1932-8-1 4034 San Mateo Stanford University, Santa Cruz mountain range, Corte Madera Creek watershed. 122 Comment
  UC1135674  Quercus kelloggii C. M. Belshaw 1935-1-25 1463 San Mateo 4.5 mi w Woodside; Santa Cruz Quad. 609 Comment
  UC311547  Quercus kelloggii A. D. E. Elmer May 1903 4520 San Mateo Searsville Lake Comment
  CAS-BOT-BC62892  Quercus lobata Paul Reeberg 1989-5-2 s.n. San Mateo Bitter Cherry Ridge, San Bruno Mountain 198 Comment
  CAS-BOT-BC62896  Quercus lobata George Oberlander 1949-7-30 346 San Mateo Southern boundary Comment
  CAS-BOT-BC134785  Quercus wislizeni James McMurphy 1902-5-17 s.n. San Mateo Road to Kings Mt. Comment
  HSC24046  Quercus wislizeni Mary Katherine Wicksten 1971-6-17 14 San Mateo Huddart Park, bank along Zwierlein Trail near parking lot Comment
  SEINET13954082 Image available Quercus wislizeni John Thomas Howell 1964-1 40961 San Mateo Portola State Park Comment
  JROH2527  Quercus wislizeni var. frutescens W. R. Dudley 1903-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; east of Searsville Reservoir Comment
  RSA3933  Quercus wislizeni var. wislizeni W. R. Dudley 1903-5-2 s.n. San Mateo In front of Iverson House near Peters Creek. Comment
  CAS-BOT-BC362546  Rafinesquia californica Fred Hemphill 1973-5-14 822 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC362550  Rafinesquia californica John H. Thomas 1961-5-7 9294 San Mateo San Bruno Mountain in northern part of county 396 Comment
  RSA181321  Rafinesquia californica John H. Thomas 1965-5-12 10645 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  SEINET12086684  Ranunculus W. R. Dudley 1904-1 s.n. San Mateo Corte Madera Creek, Santa Cruz Mountain Peninsula Comment
  JROH3471  Ranunculus californicus John H. Thomas 1974-4-6 17090 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU2306  Ranunculus californicus C. W. Sharsmith 1950-4-16 6635 San Mateo near Pescadero Point near Pescadero Comment
  UC511335  Ranunculus californicus Lyman Benson 1931-3-15 2642 San Mateo Emerald Lake San Francisco Bay Watershed, Santa Cruz Mt. Range, Redwood C 152 Comment
  RSA15247  Ranunculus californicus Carl B. Wolf 1927-2-19 208 San Mateo Spring Valley, on Belmont to Halfmoon Bay road Comment
  CAS-BOT-BC378525  Ranunculus californicus var. californicus L. R. Abrams 1901-3-1 1148 San Mateo Santa Cruz Mts. Comment
  CAS-BOT-BC378527  Ranunculus californicus var. californicus R. S. Woglum 1935-5-25 1156 San Mateo San Francisco area, Skyline Drive Comment
  CAS-BOT-BC378544  Ranunculus californicus var. californicus John H. Thomas 1969-4-30 15032 San Mateo serpentine near Canada College, Redwood City, just off of Farm Hill Blvd Comment
  RSA268183  Ranunculus californicus var. cuneatus Ralph Hoffman 1919-4-19 s.n. San Mateo Steep slope above Cyler's Comment
  JROH3485  Ranunculus hebecarpus John Hunter Thomas 1983-4-21 21638 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3482  Ranunculus hebecarpus John H. Thomas 1976-4-19 18083 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail in oakwoodland near dam. Comment
  CAS-BOT-BC83421  Ranunculus lobbii Roxana S. Ferris 1918-3-31 758 San Mateo Coal Mine Ridge. Comment
  UC202813  Ranunculus lobbii A. D. E. Elmer April, 1903 4734 San Mateo Alpine School House Comment
  UC162558  Ranunculus muricatus Harley P. Chandler 1901-3-15 798 San Mateo marshes w Colma; Region of San Francisco Bay Comment
  SEINET12100640  Ranunculus orthorhynchus L. S. Rose 1937-1 37241 San Mateo Brisbane 6 Comment
  POM282733  Ranunculus orthorhynchus var. bloomeri L. S. Rose 1934-3-11 35051 San Mateo Wet fields, Visitacion Valley Comment
  RSA230359  Ranunculus orthorhynchus var. bloomeri L. S. Rose 1937-4-30 37241 San Mateo Brisbane. 6 Comment
  RSA249486  Raphanus sativus John F. Emmel 1972-4-1 396 San Mateo Along Guadalupe Cyn Parkway near NE facing slope, 0.4 airmile SSW of Midway Village School, San Bruno Mtns. 91 Comment
  UCD115167  Raphanus sativus L. Angst 1917-4-21 14 San Mateo south of San Francisco. Comment
  POM136515  Rhamnus californica A. D. E. Elmer 1903-07 4772 San Mateo Pilarcitos Stone Dam. Comment
  CAS-BOT-BC55885  Rhamnus crocea Elizabeth McClintock; Carlyn Halde; Walter Knight 1963-6-23 s.n. San Mateo Lower part of Colma Canyon Comment
  JROH3556  Rhamnus crocea H. L. Mason 1921-3-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3559  Rhamnus crocea John H. Thomas 1963-3-20 10029 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Westridge end of ridge. Comment
  POM243722  Rhamnus crocea Carl B. Wolf 1928-3-16 1540 San Mateo Jasper ridge, near Searsville Lake Comment
  POM282947  Rhamnus crocea Lyman Benson 1930-5-21 s.n. San Mateo Lake Searsville. 152 Comment
  CAS-BOT-BC389666  Rhododendron occidentale Wicksten 1975-6-19 233 San Mateo Unspecified Comment
  POM132207  Rhododendron occidentale var. occidentale A. D. E. Elmer 1903-06 4298 San Mateo Butano Creek Comment
  RSA112356  Rhododendron occidentale var. occidentale W. R. Dudley 1895-6-6 San Mateo Pescadero Creek Comment
  UC311182  Ribes aureum A. D. E. Elmer May, 1903 4514 San Mateo Portola Comment
  CAS-BOT-BC92491  Ribes aureum var. gracillimum A. D. E. Elmer 1903-5-1 4514 San Mateo Portola. Comment
  POM141978  Ribes aureum var. tenuiflorum A. D. E. Elmer 1903-05 4514 San Mateo Portola Comment
  UC204126  Ribes californicum A. D. E. Elmer March 1903 4683 San Mateo Portola Comment
  CAS-BOT-BC93005  Ribes californicum var. californicum A. D. E. Elmer 1903-6-1 4787 San Mateo Lake San Andreas. Comment
  JROH2642  Ribes californicum var. californicum John H. Thomas 1968-3-17 14178 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD102242  Ribes divaricatum Lewis S. Rose 1965-3-16 65008 San Mateo Searsville Lake. 121 Comment
  CAS-BOT-BC173089  Ribes divaricatum var. pubiflorum F. J. Jack 1894-3-24 s.n. San Mateo Near McDonough Ranch, Portola Comment
  CAS-BOT-BC173463  Ribes malvaceum James Roof; Walter Knight; Irja Knight 1967-7-16 2072 San Mateo On north side of ridge road adjacent to Owl's Canyon 304 Comment
  CAS-BOT-BC173466  Ribes malvaceum A. D. E. Elmer 1903-3-1 4750 San Mateo Portola Comment
  CAS-BOT-BC173474  Ribes malvaceum A. D. E. Elmer 1903-3-1 4750 San Mateo Portola Comment
  UC202806  Ribes malvaceum A. D. E. Elmer March 1903 4750 San Mateo Portola Comment
  CAS-BOT-BC212807  Ribes menziesii A. D. E. Elmer 1903-4-1 4496 San Mateo Portola Comment
  CAS-BOT-BC212810  Ribes menziesii Adoph Holme 1929-4-1 s.n. San Mateo Berenda Farm near Redwood City Comment
  CAS-BOT-BC212821  Ribes menziesii W. R. Dudley 1894-7-7 s.n. San Mateo Top Bear Gulch Rd Comment
  CAS-BOT-BC212832  Ribes menziesii W. R. Dudley 1894-3-1 s.n. San Mateo Between Half Moon Bay and Woodside Comment
  CAS-BOT-BC212842  Ribes menziesii J. H. Thomas 1949-3-31 205 San Mateo King's Mountain Comment
  SBBG33468  Ribes menziesii A. D. E. Elmer -Apr-1903 4496 San Mateo Portola Comment
  UC1127451  Ribes menziesii G. E. Sindel 1935-8-13 330 San Mateo San Gregorio Creek Santa Cruz Quadrangle Comment
  UC202789  Ribes menziesii A. D. E. Elmer April, 1903 4496 San Mateo Portola Comment
  CAS-BOT-BC212818  Ribes menziesii W. R. Dudley 1906-6-12 s.n. San Mateo Back of winery, West Union Gulch Comment
  RSA0021751  Ribes menziesii var. leptosmum D. D. Keck 1933-2-22 1986 San Mateo Sand Hill Road, near Stanford University. 61 Comment
  JROH2669  Ribes menziesii var. menziesii John Hunter Thomas 1981-4-5 20283 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek. Comment
  CAS-BOT-BC144635  Ribes sanguineum var. glutinosum W. R. Dudley 1900-3-18 s.n. San Mateo Below San Andreas Lake and above head of Crystal Springs Lake Comment
  CAS-BOT-BC144645  Ribes sanguineum var. glutinosum Josephine D. Randall 1907-3-9 367 San Mateo Kings Mt. Comment
  JROH2676  Ribes sanguineum var. glutinosum John H. Thomas 1975-5-2 17853 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR70842  Ribes sanguineum var. glutinosum L. S. Rose 1947-3-11 47027 San Mateo Kings Mountain 610 Comment
  CAS-BOT-BC168725  Ribes victoris Eric Walther 1919-2-23 s.n. San Mateo Woodside Comment
  CAS-BOT-BC168727  Ribes victoris Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  POM53912  Rigiopappus leptocladus C. F. Baker 1902-5-4 754 San Mateo Woodside Comment
  UC517992  Rigiopappus leptocladus Lewis S. Rose 1933-4-30 33130 San Mateo Redwood City Comment
  CAS-BOT-BC363090  Rigiopappus leptocladus James McMurphy 1906-5-8 s.n. San Mateo Near head of Crystal Lake Comment
  UC107586  Romanzoffia californica C. F. Baker 1902-4-6 463 San Mateo Crystal Springs Lake; ; Crystal Springs Lake, San Mateo Co. Comment
  UC407071 Image available Romanzoffia californica L. R. Abrams 1915-3-23 5568 San Mateo -San Marcos rd. Crystal Springs; Santa Cruz Mt. Peninsula, Crystal Springs Comment
Read comments
Dec 31 2014
  CAS-BOT-BC74653  Rorippa curvisiliqua George Oberlander 1949-7-30 315 San Mateo In bottom of San Francisquito Creek, about 60 m. above Pope Street bridge. Comment
  JROH1581  Rorippa palustris subsp. palustris John Hunter Thomas 1977-6-16 18808 San Mateo Jasper Ridge Biological Preserve, Stanford University; delta in Searsville Lake Comment
  CAS-BOT-BC75025  Rorippa palustris var. hispida C. F. Baker 1902-10-20 1856 San Mateo Searsville. Comment
  CAS-BOT-BC147627  Rosa californica Elizabeth McClintock; Paul Reeberg 1988-4-30 s.n. San Mateo Buckeye Canyon Comment
  RSA3085  Rosa californica Carl B. Wolf 1931-8-20 2327 San Mateo Los Trancos Creek, 2 miles back of Stanford University, near Schenkel's Camp. 91 Comment
  CAS-BOT-BC146704  Rosa gymnocarpa Elizabeth McClintock 1965-3-28 s.n. San Mateo Romanzoffia Ravine Comment
  JROH3757  Rosa gymnocarpa var. gymnocarpa W. R. Dudley 1893-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3760  Rosa gymnocarpa var. gymnocarpa John H. Thomas 1974-6-27 17448 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC156594  Rubus bifrons J. H. Thomas 1963-9-11 10263 A San Mateo San Bruno Mountain. Near intersection of Guadalupe Rd. and South Hill Blvd. Comment
  CAS-BOT-BC156648  Rubus bifrons Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Colma Canyon Comment
  LA37943  Rubus parviflorus Ira L. Wiggins; 1939-8-12 9296 -A San Mateo Along banks of Gazos Cr. about 5 mi. inland from coast Comment
  CAS-BOT-BC156772  Rubus spectabilis Peter H. Raven 1951-3-12 2749 San Mateo N. base San Bruno Mountains Comment
  UC12986  Rubus spectabilis J. Burtt Davy 1895-4-21 1061 San Mateo Pilarcitos Creek Comment
  CAS-BOT-BC157077  Rubus ursinus L. R. Abrams 1914-10-14 5131 San Mateo Tunitas [Canon] Canyon Comment
  CAS-BOT-BC157081  Rubus ursinus L. R. Abrams 1914-10-14 5135 San Mateo Tunitas Comment
  CAS-BOT-BC157092  Rubus ursinus A. D. E. Elmer 1903-5-1 4788 San Mateo Spanishtown Comment
  UC1084377  Rumex acetosella G. Thomas Robbins 1937-4-11 74 San Mateo just s San Francisco (along Skyline Boulevard) Comment
  CAS-BOT-BC422088  Rumex acetosella E. McClintock; Phillip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. Top of ridge, east of Nike station. Comment
  CAS-BOT-BC422089  Rumex acetosella Elizabeth McClintock; Philip Wheeler 1967-5-15 s.n. San Mateo San Bruno Mountain. East side of mountain, above Harold Ave., Brisbane. Grassy slope above Philip Wheeler's house. Comment
  UCD101037  Rumex acetosella E. M. Johnston 1916-6-1 11 San Mateo Millbrae. Comment
  CAS-BOT-BC421570  Rumex crassus John H. Thomas 1963-7-19 10195 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC433359  Rumex crispus Ned Cahill 1974-5-3 275 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  CAS-BOT-BC433542  Rumex fueginus George Oberlander 1950-7-15 1106 San Mateo San Francisco Watershed Reserve. About San Andreas Lake Comment
  UC1537263  Rumex maritimus Gordon H. True Jr. 1937-10-16 847 San Mateo near Thornton Beach 15 Comment
  CAS-BOT-BC433822  Rumex pulcher George Oberlander 1949-7-30 342 San Mateo San Francisco Watershed Reserve. Upper Crystal Spr. Lake Comment
  JROH2219  Rupertia physodes John Hunter Thomas 1980-5-6 19922 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC311105  Rupertia physodes A. D. E. Elmer June, 1903 4270 San Mateo Crystal Springs Lake Comment
  SEINET3837363  Ruppia maritima Unknown 1946-4-30 s.n. San Mateo .5 mile north of Redwood City Comment
  CDA15512  Sagina procumbens N. Mulder 1999-4-29 PDR 1244753 San Mateo D & M Nursery, Cloverdale Rd., Pescadero. 0 Comment
  SEINET11941059  Salicornia depressa Unknown 1933-1 10460 San Mateo Shanty Town, near Belmont, San Fransisco Bay Comment
  CAS-BOT-BC103337  Salix bonplandiana W. R. Dudley 1900-3-18 s.n. San Mateo South of San Andreas Lake Comment
  UCD110944  Salix exigua Lewis S. Rose 1965-3-8 65003 San Mateo Searsville Lake. 121 Comment
  CAS-BOT-BC107135  Salix lasiolepis Walther 1919-2-23 s.n. San Mateo Woodside Comment
  CAS-BOT-BC166959  Salix lasiolepis Peter Rubtzoff 1976-3-14 8447 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CDA34016  Salix lasiolepis D. G. Kelch 2011-3-13 11 .056 San Mateo Near Half Moon Bay along Capistrano Creek. Comment
  JROH3860  Salix lasiolepis W. R. Dudley 1903-4-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Wild Plum Canyon, Searsville Ridge Comment
  LA208768  Salix lasiolepis David D. Keck; 1932-1-24 1356 San Mateo Portola 150.0 Comment
  RSA788839  Salix lasiolepis Peter Rubtzoff 1976-3-14 8445 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  UC1303067  Salix lasiolepis L. R. Abrams 1915-3-13 5162 San Mateo near junction of San Francisquito and Los Trancos creeks (about 2 mi from Stanford University) Comment
  UC1618082  Salix lasiolepis Donald G. Nelson 1939-6-14 621 San Mateo 3 mi. s of San Francisco Co, line (Skyline Blvd. due e. of Mussel Rock on coast, large permanent Sag Pond) Comment
  UC481898  Salix lasiolepis C. R. Ball and G. W. Hendry 1931-2-22 15 San Mateo in arroyo near San Gregorio Creek (100 m from ocean); San Gregorio Comment
  CAS-BOT-BC124481  Salix lasiolepis var. lasiolepis Elizabeth McClintock 1965-3-28 s.n. San Mateo Devil's Arroyo Comment
  UCR142837  Salix scouleriana L. S. Rose 1934-2-10 34025 San Mateo Coast Range, Skyline Blvd. 4 miles south of Kings Mountain 701 Comment
  CAS-BOT-BC126485  Salix sitchensis W. R. Dudley 1906-3-18 s.n. San Mateo [King's] Kings Mt. Road Comment
  CAS-BOT-BC126505  Salix sitchensis W. R. Dudley 1903-5-1 s.n. San Mateo From Peters Creek above Iverson's to old mill Comment
  CAS-BOT-BC126507  Salix sitchensis James McMurphy 1907-4-27 s.n. San Mateo Kings Mt. Comment
  CAS-BOT-BC126510  Salix sitchensis E. A. McGregor 1908-3-28 s.n. San Mateo [King's] Kings Mt. 365 Comment
  CAS-BOT-BC126518  Salix sitchensis George Oberlander 1950-3-11 820 San Mateo San Mateo Creek Comment
  CAS-BOT-BC126521  Salix sitchensis W. R. Dudley 1897-4-19 s.n. San Mateo Bank of Pescadero Creek below Peters Creek Comment
  POM176877  Salix sitchensis W. R. Dudley 1900-3-17 s.n. San Mateo Below Pilar Point. Santa Cruz Peninsula. Comment
Read comments
Feb 2 2014
  RSA788840  Salix sitchensis Peter Rubtzoff 1976-3-14 8448 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  SEINET946766  Salvia mexicana var. major Betsy Clebsch 1983-1 s.n. San Mateo Planted in garden on Big Swing Comment
  RSA681669  Salvia sonomensis Annuschka Deb 1989-4-19 114 San Mateo YBN Berm near parking lot Comment
  RSA51285  Salvia spathacea Peter H. Raven 1950-4-16 1787 San Mateo Colma Canyon, San Bruno Mountains. 183 Comment
  RSA800280  Sambucus callicarpa Peter Rubtzoff 1988-6-9 9925 San Mateo San Bruno Mountains, upper part of East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC246023  Sambucus nigra subsp. caerulea George Oberlander 1950-4-2 586 San Mateo Sawyer Ridge, San Francisco Watershed Reserve Comment
  CAS-BOT-BC246026  Sambucus nigra subsp. caerulea H. A. Dutton 1900-4-17 s.n. San Mateo Jasper Hill, Santa Cruz Peninsula Comment
  JROH1669  Sambucus nigra subsp. caerulea John H. Thomas 1963-6-23 10171 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1676  Sambucus nigra subsp. caerulea John Hunter Thomas 1989-5-9 24724 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC236456  Sambucus racemosa subsp. racemosa W. R. Dudley 1900-3-16 s.n. San Mateo Ner bridge over Pilarcitos Creek, road to Halfmoon Bay, Santa Cruz Mountain Peninsula Comment
  JEPS185  Sanicula arctopoides W. L. Jepson 1922-3-19 9535 San Mateo Lake San Andreas Comment
  OBI8785  Sanicula arctopoides Lewis S. Rose 1961-4-5 61030 San Mateo San Bruno Mts. 366 Comment
  SBBG32454  Sanicula arctopoides L. S. Rose 1965-3-25 65012 San Mateo N end San Bruno Mtns 121 Comment
  SEINET13945102 Image available Sanicula arctopoides Lewis S. Rose 1965-1 65012 San Mateo San Bruno Mts, N end. Ca 400 ft 122 Comment
  JROH319  Sanicula bipinnata Ann Lambrecht 2003-4-9 5 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11, W edge of trail, around curve SW of Collinsia heterophylla site Comment
  CAS-BOT-BC223318  Sanicula bipinnatifida Ned Cahill 1974-4-30 219 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  SJSU1080  Sanicula bipinnatifida C. W. Sharsmith 1951-4-6 5820 San Mateo Woodside Hills c. 3 mi W of Woodside 182 Comment
  CAS-BOT-BC223321  Sanicula bipinnatifida George Oberlander 1949-4-17 99 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  CAS-BOT-BC539830  Sanicula crassicaulis Fred Hemphill 1973-4-22 826 San Mateo San Carlos, area N of Malabar Rd. and Melendy Dr. 243 Comment
  CDA39078  Sanicula crassicaulis M. K. Beyers 2013-3-3 s.n. San Mateo Montara State Beach, McNee Ranch Trail Trailhead. Comment
  JROH327  Sanicula crassicaulis D. D. Davis 1903-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; north slope Searsville Ridge Comment
  JROH341  Sanicula crassicaulis John H. Thomas 1977-4-28 18562 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC166810  Sanicula crassicaulis Peter Rubtzoff 1976-6-30 8712 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  RSA40292  Sanicula crassicaulis L. S. Rose 1948-5-9 48108 San Mateo W. of Burlingame 122 Comment
  RSA0000761  Sanicula serpentina A. D. E. Elmer 1903-04 4498 San Mateo Portola. Comment
  POM204321  Satureja douglasii I. L. Wiggins 1929-7-4 3778 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  UC11756  Saxifraga californica Ivar Tidestrom 1894-3-22 San Mateo Comment
  RSA134131  Scandix pecten-veneris John H. Thomas 1955-4-6 4830 San Mateo Disturbed ground along San Francisco Bay, about 1 mi. SE of Broadway, Burlingame. 5 Comment
  CAS-BOT-BC283133  Schedonorus arundinaceus Elizabeth McClintock; Paul Reeberg 1988-4-26 s.n. San Mateo On the south side of Crocker Industrial Park, San Bruno Mountains 22 Comment
  RSA140840  Schinus molle John H. Thomas 1960-6-25 8788 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street. alt. below 25 feet. 8 Comment
  RSA365994  Schoenoplectus pungens Edith A. Purer 1933-7-27 s.n. San Mateo 2 miles south of Pigeon Point. Comment
  CAS-BOT-BC111784  Schoenoplectus pungens var. longispicatus John Hunter Thomas 1960-6-25 8797 San Mateo Redwood City. Along or near a small creek running into Redwood Slough, 7 Comment
  UC1104551  Scirpus cernuus J. H. Thomas 1959-7-8 8017 San Mateo Pescadero Beach bluffs at Pescadero Beach Comment
  UC1853  Scirpus cernuus J. Burtt Davy 1893-6-17 San Mateo Belmont Belmont (meadow back of Salt Marsh) Comment
  UC2159  Scirpus microcarpus J. Burtt Davy 1893-6-22 765 San Mateo marsh at head Lake Pilarcitos; marsh at head Lake Pilarcitos Comment
  UCD23292  Scirpus microcarpus Alan T. Whittemore 1976-5-29 110 San Mateo Crystal Springs Canyon, about 1/2 mile below (East of) dam. 39 Comment
  UC1100802  Scirpus pungens Herbert L. Mason 1949-7-7 14025 San Mateo mouth Gazos Creek (near ocean, s San Mateo Co.) Comment
  JEPS62103  Scoliopus bigelovii Inez Smith Mar. 1915 San Mateo Hillsboro Comment
  POM202952  Scoliopus bigelovii Alice Eastwood 1933-4-30 s.n. San Mateo Lake Pilarcitos. Comment
  SEINET926250  Scoliopus bigelovii A. D. E. Elmer 1903-1 4559 San Mateo King's mountain. Comment
  UC1073371  Scoliopus bigelovii George B. Rossbach 1955-3-12 214 San Mateo San Mateo Creek at s.e. end Buriburi Ridge; San Mateo Creek Comment
  CAS-BOT-BC519004  Scoliopus bigelovii George Oberlander 1949-4-17 87 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC519022  Scoliopus bigelovii C. F. Baker 1902-3-18 322 San Mateo King's Mountain Comment
  SEINET12049510  Scoliopus bigelovii L. R. Abrams 1904-1 s.n. San Mateo Bear Gulch, Sant Cruz Mountain Peninsula Comment
  CDA7621  Scolymus hispanicus T. C. Fuller 1965-7-8 13755 San Mateo D. McBryde property, 140 Eleanor Drive, Woodside. 0 Comment
  JROH5459  Scribneria bolanderi John H. Thomas 1980-5-1 19912 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road D Comment
  CHSC39825  Scrophularia californica Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  JEPS127846  Scrophularia californica Adam C. Schneider 2013-4-7 84 San Mateo Comment
  JROH4124  Scrophularia californica Richard L. Garber 1971-5-18 19 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA152269  Scrophularia californica John H. Thomas 1961-5-7 9301 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  RSA46817  Scrophularia californica Doris K. Kildale 1929-6-19 8011 San Mateo 1.5 miles from La Honda. Comment
  JROH2884  Scutellaria tuberosa John H. Thomas 1961-4-28 9175 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  CAS-BOT-BC240067  Secale cereale Walter Knight; Irja Knight 1965-4-24 1038 San Mateo San Bruno Mountain. Point San Bruno Comment
  CAS-BOT-BC59061  Sedum spathulifolium G. B. Rossbach 1939-6-18 756 San Mateo Ledge near 755 on SE slope of North Peak, Montara Mts. 396 Comment
  RSA0074736  Sedum spathulifolium A. D. E. Elmer 1903-06 4550 San Mateo Toward San Mateo from Crystal Springs Lake. Comment
  CAS-BOT-BC363400  Senecio aronicoides A. A. Heller 1907-4-20 8448 San Mateo Near Lake Merced Comment
  JROH1219  Senecio aronicoides John H. Thomas 1967-5-10 12855 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC363385  Senecio aronicoides W. R. Dudley 1893-5-27 s.n. San Mateo Santa Cruz Peninsula. Near Summit Springs - Kings Mt. Comment
  RSA0013329  Senecio aronicoides P. H. Raven 1950-4-6 s.n. San Mateo Colma Canyon, San Bruno Mts. Comment
  CAS-BOT-BC363735  Senecio hydrophilus Alice Eastwood; John Thomas Howell 1938-6-26 6058 San Mateo Near Pescadero Comment
  CAS-BOT-BC363737  Senecio hydrophilus George Oberlander 1950-5-28 994 San Mateo San Francisco Watershed Reserve. Upper Crystal Springs Lake Comment
  CAS-BOT-BC364631  Senecio vulgaris Margaret A. Barry 1937-5-15 110 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC364641  Senecio vulgaris Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain. Slope above Hillside Blvd., South San Francisco Comment
  RSA170453  Sequoia sempervirens Mark Parratt 1963-2-2 512 San Mateo Santa Cruz Mountains; Big Basin Redwoods State Park, near park headquarters 183 Comment
  SEINET10612340  Sequoia sempervirens Charles F. Baker 1902-1-15 Baker 319 San Mateo West side King's Mountain. The redwood of the Coast Range. Plants of the Pacific Coast. Spermaphytes and Ferns. Distributed by C.F. Baker. Comment
  SEINET10612347  Sequoia sempervirens H. Mount 1908-3-28 Mount s.n. 1908 San Mateo Kings Mountain, vicinity of woodside. From the Herbarium of Leland Stanford Jr. University. Comment
  SEINET13289873 Image available Sequoia sempervirens D. W. Woodland 1974-1 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA2435  Setaria parviflora I. J. Campbell 1958-8-12 1015 San Mateo Redwood City. 0 Comment
  UCR121586  Sherardia arvensis George K. Helmkamp, E. A. Helmkamp 1999-6-28 4965 San Mateo Coast Range; Santa Cruz Mtns, Sky Londa; junction of Calif. Hwy 84 and Calif. Hwy 35, 5 mi south of central Redwood City 457 Comment
  CDA6642  Sherardia arvensis Wm. Davis 1958-6-5 San Mateo San Bruno. 0 Comment
  HSC83378  Sherardia arvensis K. L. Koch 1965-5-1 39 San Mateo Alpine Rd., 0.4 mi. from Portola Park turnoff 488 Comment
  UCD122002  Sherardia arvensis K. L. Koch 1965-5-1 39 San Mateo Alpine Road, .4 mile from Portola Park turnoff. 487 Comment
  SBBG30044  Sidalcea diploscypha L. S. Rose 1935-6-9 San Mateo Emerald Lake, W of Redwood City Comment
  UC583163  Sidalcea diploscypha Lewis S. Rose 1936-5-28 36300 San Mateo w Redwood City (Emerald Lake); , w of Redwood City 91 Comment
  RSA432966  Sidalcea hickmanii subsp. hickmanii H. F. Copeland 1928-2-26 s.n. San Mateo Montara Comment
  CAS-BOT-BC205603  Sidalcea malviflora Dean Wm. Taylor 1988-3-30 9468 San Mateo Santa Cruz Mountains. San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest. Right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain 237 Comment
  RSA448203  Sidalcea malviflora subsp. malviflora Glenn A. Gorelick 1967-2-10 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  CAS-BOT-BC175277  Silene W. R. Dudley 1900-3-17 s.n. San Mateo By grade, south slope, near top Montara Mts. Comment
  POM151335  Silene californica C. F. Baker 1903-6-30 33522 San Mateo Crystal Springs Comment
  UC311135  Silene californica A. D. E. Elmer June, 1903 4446 San Mateo Crystal Springs Lake Comment
  JROH1734  Silene gallica John Hunter Thomas 1977-6-16 18756 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old racing oval Comment
  CAS-BOT-BC166915  Silene gallica Peter Rubtzoff 1978-5-5 9164 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  UCD164093  Silene gallica Peter Rubtzoff 1978-5-5 9164 San Mateo San Bruno Mountains.'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC389199  Silene laciniata subsp. californica Josephine D. Randall 1907-7-24 30 San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  JROH1729  Silene laciniata subsp. californica John Hunter Thomas 1989-6-17 24775 San Mateo Jasper Ridge Biological Preserve, Stanford University; near San Francisquito Creek Comment
  UC852949  Silene scouleri subsp. grandis Alice Eastwood 1912-6-10 328 San Mateo Millbrae Comment
  CAS-BOT-BC364854  Silybum marianum Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon Comment
  CAS-BOT-BC74986  Sinapis arvensis Fred Hemphill 1973-4-8 604 San Mateo San Carlos. North of Malabar Road and Melendy Drive. 207 Comment
  POM193639  Sisyrinchium bellum Le Roy Abrams 1902-4-13 2327 San Mateo San Andreas Lake. Comment
  UC676739  Sisyrinchium bellum Reed C. Rollins 1941-3-22 2948 San Mateo 1 mi n of Belmont Comment
  RSA18327  Sisyrinchium californicum Carl B. Wolf 1929-5-10 3708 San Mateo Coast at Pigeon Pt. South of Pescadero. Comment
  UC844176  Smilacina racemosa L. R. Abrams 1916-3-25 5585 San Mateo near Dam; Santa Cruz Mountain Peninsula, Searsville Ridge Comment
  CDA39382  Smilacina racemosa var. amplexicaulis T. C. Fuller 1960-4-2 4080 San Mateo La Honda Rd., 1 mile north of La Honda. 0 Comment
  JEPS108625  Smilacina stellata W. Roderick San Mateo 2.1 mi W (down) from Skyline Blvd, SE of Half Moon Bay Comment
  IRVC9074  Smilacina stellata var. sessilifolia P. W. Rundel 1962-4-12 1017 B San Mateo 1 mile East of Skyline Hwy on La Honda Rd. Comment
  RSA202897  Solanum americanum G. Ledyard Stebbins, E. L. Paddock 1939-8-17 61 San Mateo San Gregornio. Comment
  UCD165017  Solanum americanum Peter Rubtzoff 1974-12-17 7942 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  UC625421  Solanum douglasii L. R. Abrams, I. L. Wiggins 1939-6-3 425 San Mateo Ano Nuevo Point Comment
  UC1537407  Solanum douglasii Gordon H. True Jr. 1937-7-23 806 San Mateo n of Sharpe Park 15 Comment
  UCD126930  Solanum douglasii E. Jacqueline Garcia 1986-4-19 s.n. San Mateo San Bruno Mountains near San Francisco County Line, 0.5 mile from Summit Loop trailhead on Guadalupe Canyon Road. Comment
  UC1327228  Solanum furcatum John T. Doyen 1966-3-28 34 San Mateo San Bruno Mountains, near Radio Towers on top San Bruno Mountains Comment
  JROH4186  Solanum umbelliferum John H. Thomas 1958-2-15 6988 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA127358B  Solanum umbelliferum Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mts. overlooking Daly City near San Francisco. Comment
  SD37373  Solanum umbelliferum Delzie Demaree 1932-4-9 8981 San Mateo Los Trancos Woods Comment
  SEINET7262166 Image available Solanum umbelliferum S. B. Snow 1907-2-18 16 San Mateo Jasper Ridge Comment
  RSA473644  Solidago californica E. A. Purer 1933-8-25 5523 San Mateo Spring Valley. Comment
  SD27769  Solidago canadensis subsp. elongata Carl B. Wolf 1927-6-29 568 San Mateo on the coast 3 mi. S. of San Gregorio. Comment
  CAS-BOT-BC353473  Solidago elongata Peter Rubtzoff 1978-9-16 9271 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction. Western part of the area, on slope near fence, San Bruno Mountains. Comment
  CAS-BOT-BC365538  Solidago elongata Lewis S. Rose 1931-9-9 s.n. San Mateo Kings Mt. Comment
  JEPS32447  Solidago elongata W. L. Jepson 1910-8-18 4163 San Mateo Butano Cr Comment
  SEINET11382904 Image available Solidago elongata Unknown 1931-1 s.n. San Mateo Kings Mt. Comment
  CAS-BOT-BC365193  Solidago velutina subsp. californica Josephine D. Randall 1907-7-4 96 San Mateo Santa Cruz Peninsula. Mill's Lake Comment
  CAS-BOT-BC365925  Soliva sessilis W. R. Dudley 1895-6-6 s.n. San Mateo Santa Cruz Peninsula. Near Pescadero Creek Comment
  CAS-BOT-BC365927  Soliva sessilis John H. Thomas 1964-4-30 10370 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH1253  Soliva sessilis John Hunter Thomas 1989-5-11 24736 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1238  Soliva sessilis John H. Thomas 1955-5-6 5000 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS128402  Sonchus asper subsp. asper Adam C. Schneider 2013-5-17 135 San Mateo Crystal Springs Reservoir. Comment
  CAS-BOT-BC374698  Sonchus oleraceus Ira L. Wiggins 1973-7-29 22057 San Mateo Lower part of northerly bank of San Francisquito Creek, ca 75 m upstream from Pope Street bridge Comment
  JROH5520  Sparganium eurycarpum var. eurycarpum L. R. Abrams 1917-10-9 6864 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Ridge Comment
  JROH1747  Spergula arvensis John Hunter Thomas 1983-4-5 21325 San Mateo Jasper Ridge Biological Preserve, Stanford University; low flow crossing Comment
  JROH1754  Spergularia John Hunter Thomas 1977-6-16 18802 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC390204  Spergularia bocconi G. B. Rossbach; R. P. Rossbach 1940-6-20 737 San Mateo 1 mile south of Montara Point Comment
  CAS-BOT-BC390463  Spergularia macrotheca var. macrotheca Anne Constant 1955-5-28 197 San Mateo Top of bluff at Pescadero Beach 7 Comment
  CAS-BOT-BC390466  Spergularia macrotheca var. macrotheca W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. By grade, south slope Montara Mts. and near the ocean Comment
  CAS-BOT-BC390474  Spergularia macrotheca var. macrotheca G. B. Rossbach; R. P. Rossbach 1937-11-25 609 San Mateo 3 mi. south of Half Moon Bay Comment
  CAS-BOT-BC390920  Spergularia marina Malcom A. Nobs; S. Galen Smith 1949-8-26 1596 San Mateo At the mouth of Pescadero Creek Comment
  CAS-BOT-BC390547  Spergularia media S. D. Halsey 1908-10-1 s.n. San Mateo Redwood City Comment
  JROH5582  Spergularia rubra John Rawlings 2013-7-13 1191 San Mateo Jasper Ridge Biological Preserve, Stanford University; a few yards downstream from the Low Flow Crossing 80 Comment
  UCR160927  Spergularia rubra George K. Helmkamp, E. A. Helmkamp 2001-6-2 6793 San Mateo Central Coast, Purissima Creek Rd., 0.9 mi from Calif. Hwy 1(junction about 4 mi south of Half Moon Bay) 91 Comment
  CAS-BOT-BC390701  Spergularia rubra Elizabeth McClintock; Walter Knight; Irja Knight 1963-9-2 s.n. San Mateo San Bruno Mountain. Top of ridge above Brisbane Comment
  JROH1773  Spergularia rubra John Hunter Thomas 1992-5-26 25352 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing of San Francisquito Creek Comment
  POM63302  Stachys ajugoides A. D. E. Elmer 1903-06 4260 San Mateo Crystal Springs Lake. Comment
  RSA785891  Stachys ajugoides Peter Rubtzoff 1977-6-21 9067 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  SEINET13947989 Image available Stachys ajugoides Lewis S. Rose 1941-1 41469 San Mateo Low wet open fields, Belmont. Alt ca 3 m 3 Comment
  UC702529  Stachys ajugoides var. ajugoides L. S. Rose 1941-10-24 41469 San Mateo Belmont 3 Comment
  CDA20748  Stachys bullata Arthur Gilbert 2006-11-14 XI- 14 /15-2006 San Mateo Frenchmans Creek, Half Moon Bay. 0 Comment
  JROH2898  Stachys bullata John H. Thomas 1971-5-30 15977 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2916  Stachys bullata John Hunter Thomas 1992-7-24 25384 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Causeway Comment
  SBBG6546  Stachys bullata H. and M. Dearing 1933-5-14 San Mateo Skyline Drive, S of San Francisco Comment
  UC25935  Stachys bullata J. Burtt Davy Jun 21 1893-Jun 23 1893 1141 San Mateo Pilarcitos Lake and Canyon Comment
  SEINET10499250  Stachys bullata A. Arthur Heller 1907-5-28 Heller 8581 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  UCD125565  Stachys bullata Alan T. Whittemore 1976-5-31 136 San Mateo Alpine Road, near east end of Corte Madera Creek Trail. Comment
  UC2055637  Stachys pycnantha Carl B. Wolf 1927-6-1 535 San Mateo Above Emerald Lake, W of Redwood City . Comment
  NY415795  Stachys quercetorum A. A. Heller 1907-5-28 8577 San Mateo Above Crystal Springs on the Half Moon Bay road Comment
  JROH1778  Stellaria media John H. Thomas 1967-3-13 12411 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC394056  Stellaria media John H. Thomas 1963-5-20 10125 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  JROH1784  Stellaria media John Hunter Thomas 1981-4-5 20289 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek Comment
  UCSC007784  Stellaria media Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH5733  Stellaria nitens John Rawlings 2013-4-16 1653 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 2 extension south of the Dengler Transect after a short uphill section 84 Comment
  UC1177277  Stephanomeria elata John Thomas Howell 1939-10-8 15369 San Mateo Point San Pedro Comment
Read comments
Jun 6 2008
  JROH5390  Stipa miliacea var. miliacea Ann Lambrecht 2002-9-18 4 San Mateo Jasper Ridge Biological Preserve, Stanford University. Off Trail 13, Leonard's Bridge section, 2-3 meters W of bridge, not far from its S end. Comment
  JROH5337  Stipa pulchra W. Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By Searsville Lab. Comment
  CAS-BOT-BC423015  Stylomecon heterophylla Walter Knight; Irja Knight 1965-3-27 1017 San Mateo San Bruno Mountain. Devil's Gulch. Comment
  UC306701  Stylomecon heterophylla A. D. E. Elmer April, 1903 4921 San Mateo Spanishtown Comment
  CAS-BOT-BC271602  Symphoricarpos albus var. laevigatus Elizabeth McClintock; Philip Wheeler 1967-6-11 s.n. San Mateo Radio Road, San Bruno Mountain Comment
  CAS-BOT-BC271637  Symphoricarpos albus var. laevigatus C. F. Baker 1901-9-5 238 San Mateo West side Kings Mt. Comment
  CAS-BOT-BC271647  Symphoricarpos albus var. laevigatus C. B. Wolf 1931-8-20 1194 San Mateo Los Trancos Creek 2 miles back of Stanford University near Schenkel's Camp 91 Comment
  JROH1679  Symphoricarpos albus var. laevigatus John Hunter Thomas 1977-6-16 18737 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA14209  Symphoricarpos albus var. laevigatus C. B. Wolf 1926-10-19 193 San Mateo Roadside slope, west of La Honda. Comment
  RSA177008  Symphoricarpos albus var. laevigatus John H. Thomas 1964-11-29 10540 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto; along San Francisquito Creek below dam. Comment
  UC527526  Symphoricarpos albus var. laevigatus C. B. Wolf 1931-8-20 San Mateo 2 mi back Stanford University (near Schenkel's Camp, Los Trancos Creek); Los Trancos Creek 91 Comment
  CAS-BOT-BC99100  Symphyotrichum chilense Lewis S. Rose 1966-8-15 66083 San Mateo Pillar Point 1 Comment
  OBI2758  Symphyotrichum chilense Lewis S. Rose 1966-8-15 66083 San Mateo Pillar Point 2 Comment
  UC1119618  Symphyotrichum chilense A. Wright 1928-9-11 San Mateo s of Chinese Cemetary; San Mateo Quad. 548 Comment
  UC1119619  Symphyotrichum chilense T. Tyrrell 1928-9-11 5 San Mateo 2 mi s San Gregorio; Santa Cruz Quadrangle 91 Comment
  UC1555382  Symphyotrichum chilense J. A. DeBenedictis 1988-7-13 1542 San Mateo San Bruno Mt. Comment
  UC87085  Symphyotrichum chilense C. F. Baker 1902-9-2 1550 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC99062  Symphyotrichum chilense Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain - Quarry 4 Comment
  CAS-BOT-BC99098  Symphyotrichum chilense Helen D. Geis 1901-10-25 s.n. San Mateo Near Spaingstown (Half Moon Bay) Comment
  JROH1283  Tanacetum parthenium John Hunter Thomas 1992-5-26 25357 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  OBI48850  Tauschia kelloggii Lewis S. Rose 1939-5-5 39092 San Mateo San Mateo Cyn 46 Comment
  RSA119855  Tauschia kelloggii W. R. Dudley 1892-5-14 s.n. San Mateo Pass, near head of Calera Valley. Comment
  CAS-BOT-BC447478  Tellima grandiflora W. R. Dudley 1900-3-17 s.n. San Mateo Ravine, north of Seal Cove Comment
  CAS-BOT-BC447479  Tellima grandiflora Margaret A. Barry 1938-5-29 261 San Mateo Corte Madera Creek near Coal Mine Ridge Comment
  UCR141449  Tellima grandiflora June Latting 1975-6-8 s.n. San Mateo Santa Cruz Mtns., Pescasero Road, 8 miles east of highway Calif. Hwy 1 122 Comment
  CAS-BOT-BC447470  Tellima grandiflora Walter Knight; Irja Knight 1964-5-30 596 San Mateo Colma Canyon up creek from indian Head Rock. Comment
  RSA127726  Tetragonia tetragonoides John H. Thomas 1959-7-8 8015 San Mateo Low moist coastal bluffs at Pescadero Beach. Comment
  CAS-BOT-BC438270  Tetragonia tetragonoides Lewis S. Rose 1930-12-21 s.n. San Mateo Moss Beach Comment
  JROH3506  Thalictrum fendleri var. polycarpum Daniel Cohen 1953-4-11 14 San Mateo Jasper Ridge Biological Preserve, Stanford University. Growing near roadside at edge of Searsville Lake Comment
  UC74944  Thalictrum fendleri var. polycarpum C. F. Baker 1902-5-1 692 San Mateo Crystal Springs Lake Comment
  RSA100996  Thermopsis californica var. californica G. Oberlander 1950-4-16 745 San Mateo East of Lower Crystal Springs Lake, San Francisco Watershed Reserve. Comment
  CAS-BOT-BC202036  Thinopyrum ponticum Elizabeth McClintock; Paul Reeberg 1989-8-19 s.n. San Mateo San Bruno Mountains. Along Bayshore Boulevard 15 Comment
  JROH1614  Thysanocarpus curvipes John Hunter Thomas 1987-4-16 24205 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1623  Thysanocarpus curvipes John Hunter Thomas 1991-4-9 24976 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1592  Thysanocarpus curvipes subsp. curvipes John Hunter Thomas 1981-4-4 20257 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA95468  Tiarella trifoliata var. unifoliata L. S. Rose 1953-7-27 53053 San Mateo Kings Mountain. 610 Comment
  JROH378  Torilis arvensis John Hunter Thomas 1989-6-17 24778 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH399  Torilis nodosa John Hunter Thomas 1986-6-7 24085 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH388  Torilis nodosa John Hunter Thomas 1981-5-25 20622 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH396  Torilis nodosa John Hunter Thomas 1986-5-15 24045 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA45321  Torreya californica I. L. Wiggins 1945-5-5 11161 San Mateo Along La Honda Creek about 1 mile above La Honda 152 Comment
  CAS-BOT-BC172905  Toxicodendron diversilobum Ned Cahill 1974-5-13 241 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Located within five feet of the stream. Comment
  JEPS121588  Toxicodendron diversilobum Adam C. Schneider with C. Matt Guilliams 2013-4-7 116 San Mateo Crystal Springs Reservoir Comment
  JROH184  Toxicodendron diversilobum John H. Thomas 1974-4-6 17091 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB17162  Toxicodendron diversilobum Schulte, John 1963-4-23 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 137 Comment
  JROH1288  Tragopogon porrifolius John H. Thomas 1977-5-14 18606 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC377136  Tragopogon porrifolius W. R. Dudley 1897-5-12 s.n. San Mateo Santa Cruz Peninsula. On road from Bay to Menlo Park Comment
  RSA681672  Trichostema lanatum Deb Annuschka 1989-6-13 230 San Mateo Yerba Buena Herbarium Demonstration Garden. Comment
  SD39136  Trientalis europaea var. latifolia Edith A. Purer 1933-5-16 3603 San Mateo Alpine Road Comment
  CHSC1405  Trientalis latifolia J. Baynes 1929-5-20 San Mateo Near Moss Beach. Comment
  CHSC42204  Trientalis latifolia Rusti Gammon 1986-3-30 12 San Mateo Ca. 8.1 mi sw of Saratoga, 4.1 mi w off hwy 9. 569 Comment
  JROH3394  Trientalis latifolia John Hunter Thomas 1978-4-28 19161 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC010359  Trifolium Dylan M. Neubauer 2016-5-19 690 San Mateo (SnFrB) Santa Cruz Mountains, headwaters of Waterman Creek, w of Hwy 9 423 Comment
  POM278023  Trifolium albopurpureum Lyman D. Benson 1935-5-5 6527 San Mateo Lake Searsville. 152 Comment
  RSA178681  Trifolium albopurpureum John H. Thomas 1964-4-19 10319 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Near Searsville Lake. Comment
  RSA634967  Trifolium albopurpureum Michael A. Vincent, Ethan H. Freid, Karl Vincent 1998-4-9 8202 San Mateo Along east side of Canada Road, ca. 200 yards southeast of its junction with Edgewood Road, just southwest of I-280, at Filoli Center. Comment
  JROH2238  Trifolium barbigerum John H. Thomas 1961-4-29 9176 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET7076095  Trifolium barbigerum var. andrewsii A. G. Vestal 1955-5-31 s.n. San Mateo Near Pebble Beach off Route 1. (NAD 27; 37.2369? deg. North Latitude, 122.4153? deg. West Longitude, UTM Zone 10, 551863mE, 4121109mN). [GPS Coordinate: WGS84/NAD83]. Comment
  POM18837  Trifolium bifidum C. F. Baker 743 San Mateo Woodside Comment
  JROH2253  Trifolium bifidum var. decipiens John H. Thomas 1967-5-12 12879 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC165625  Trifolium bifidum var. decipiens J. Burtt Davy 1895-1 1019 San Mateo Pilarcitos Comment
  UC725794  Trifolium bifidum var. decipiens A. A. Heller 1907-5-23 8559 San Mateo near San Mateo (on Half Moon Bay Rd) Comment
  JROH2264  Trifolium depauperatum var. amplectens John Hunter Thomas 1982-4-28 20868 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2283  Trifolium fucatum John H. Thomas 1955-5-6 4987 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent grassy slopes Comment
  JROH2288  Trifolium fucatum John H. Thomas 1964-4-19 10321 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2294  Trifolium fucatum John Hunter Thomas 1978-4-22 19103 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2300  Trifolium fucatum John Hunter Thomas 1983-4-21 21639 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB7299  Trifolium fucatum Walker, Clifford 1954-4-20 San Mateo 50 yds. from ocean, 1 mi. S of Half Moon Bay Comment
  RSA95543  Trifolium fucatum var. fucatum L. S. Rose 1953-4-5 53014 San Mateo Redwood City, along Bayshore Highway. 3 Comment
  UCSC006013  Trifolium fucatum var. fucatum Randall Morgan 1996-5-8 2933 San Mateo Seed from Pescadero State Beach Comment
  SJSU15217  Trifolium glomeratum Toni Corelli 2010-5-5 625 San Mateo Ano Nuevo State Park, Cascade Field 9 Comment
  JROH2325  Trifolium hirtum John Hunter Thomas 1985-5-2 23578 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2330  Trifolium hirtum John Hunter Thomas 1988-6-2 24498 San Mateo Jasper Ridge Biological Preserve, Stanford University; beach Comment
  SBBG33319  Trifolium macraei A. D. E. Elmer -May-1903 4812 San Mateo San Pedro [Point?]; ISOTYPE of T. bicephalum Comment
  SEINET8232361  Trifolium macraei A. D. E. Elmer 1903-1 4812 San Mateo San Pedro. Comment
  UC202836  Trifolium macraei A. D. E. Elmer May, 1903 4713 San Mateo Lake Merced Comment
  JROH5840  Trifolium microcephalum Monika Bjorkman 1956-4-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; northeast of Escobar Gate Comment
  SEINET12157236  Trifolium microdon Unknown 1932-1 9121 San Mateo Bluffs Half Moon Bay Comment
  UCSC006035  Trifolium microdon Randall Morgan 1996-5-24 2965 San Mateo Pacifica, San Pedro Mtn. Comment
  SEINET10577426  Trifolium tridentatum var. tridentatum Charles F. Baker 1903-4-8 Baker 3011 San Mateo San Andreas Lake Comment
  JROH2377  Trifolium variegatum John H. Thomas 1961-4-8 9070 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2380  Trifolium variegatum John H. Thomas 1968-4-19 14302 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC867032  Trifolium variegatum T. R. Abrams 1915-6-14 5564 San Mateo Kings Mtn Rd Comment
  RSA0084064  Trifolium variegatum var. melananthum Lyman D. Benson 1930-5-1 2062 San Mateo Stanford University. 107 Comment
  JROH5703  Trifolium variegatum var. variegatum John Rawlings 2015-3-15 1356 San Mateo Jasper Ridge Biological Preserve, Stanford University; grassy drainage on ridge-top serpentine prairie. 188 Comment
  CDA28079  Trifolium willdenovii D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  POM18844  Trifolium willdenovii C. F. Baker 1902-4-4 445 San Mateo Crystal Springs Lake. Comment
  POM278621  Trifolium willdenovii Lyman D. Benson 1935-5-5 6526 San Mateo Lake Searsville. Stanford University. Santa Cruz Mtn range. S.F. Bay watershed. 152 Comment
  SJSU1077  Trifolium willdenovii C. W. Sharsmith 1951-4-7 5828 San Mateo Woodside Hills, 3 mi W of Woodside 182 Comment
  SEINET12157356  Trifolium willdenovii Unknown 1932-1 9014 San Mateo Los Francos Woods Comment
  UCSC006366  Trifolium willdenovii Randall Morgan 1995-6-22 2794 San Mateo Ridge W of Waterman Creek Comment
  SEINET10928613  Trifolium wormskioldii var. wormskioldii Adolph D. E. Elmer Elmer 4644 San Mateo Lake San Andreas Comment
  JROH4728  Trillium chloropetalum John H. Thomas 1976-4-2 18075 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC74959  Trillium chloropetalum C. F. Baker 1902-3-30 431 San Mateo Crystal Springs Lake Comment
  JROH4723  Trillium chloropetalum John H. Thomas 1969-4-12 14892 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176413  Trillium chloropetalum var. chloropetalum John H. Thomas 1964-4-19 10330 San Mateo Jasper Ridge Biological experimental area, 5 miles SW of Palo Alto. Comment
  CAS-BOT-BC521006  Trillium chloropetalum var. chloropetalum Janet Jones 1981-1-17 s. n. San Mateo On south side of Montara Mountain, Montara Comment
  POM50396  Trillium chloropetalum var. chloropetalum Le Roy Abrams, W. W. Eggleston 1924-3-23 19560 San Mateo Coast Range, near Palo Alto. 60 Comment
  RSA14213  Trillium chloropetalum var. chloropetalum Carl B. Wolf 1927-2-17 200 San Mateo Los Trancos Creek, 2 miles back of Stanford University. Comment
  CAS-BOT-BC521072  Trillium chloropetalum var. giganteum Margaret A. Barry 1937-4-21 13 San Mateo Woods on Coal Mine Ridge Comment
  CAS-BOT-BC521208  Trillium chloropetalum var. giganteum Ira L. Wiggins 1928-4-14 2917 San Mateo Alpine Creek Road Comment
  CAS-BOT-BC521209  Trillium chloropetalum var. giganteum James McMurphy 1902-3-22 s.n. San Mateo Above Portola Comment
  SEINET3888575  Trillium chloropetalum var. giganteum D. D. Keck 1932-3-6 1394 San Mateo La Honda road above Searsville Lake, Santa Cruz Mountains, San Mateo County.; 0 Comment
  CAS-BOT-BC133435  Trillium ovatum John Thomas Howell 1924-2-23 267 San Mateo King Mountain Comment
  CAS-BOT-BC133437  Trillium ovatum D. D. Davis 1903-5-1 s.n. San Mateo Near Pescadero, near Iversons Comment
  CAS-BOT-BC133447  Trillium ovatum Elmer I. Applegate 1895-3-9 43 San Mateo Near Woodside Comment
  SD39139  Trillium rivale Edith A. Purer 1933-4-18 3621 San Mateo No further locality information given on label on specimen sheet. Comment
Read comments
Nov 11 2010
  JEPS10697  Triphysaria eriantha subsp. rosea W. L. Jepson 1921-4-3 9117 San Mateo near Colma (Colma Canyon); Colma Canyon Comment
  CAS-BOT-BC238564  Triphysaria floribunda W. R. Dudley 1899-5-14 s.n. San Mateo The Santa Cruz Peninsula. Baden Comment
  CAS-BOT-BC238576  Triphysaria floribunda Roxana S. Ferris 1921-4-7 2134 San Mateo The Santa Cruz Mountain Peninsula. San Bruno Mt. 60 Comment
  UC138991  Triphysaria floribunda C. F. Baker 1903-4-8 1926 San Mateo San Andreas Lake Comment
  JEPS3988  Triphysaria pusilla Dr. L. M. Newlon 1919-4-14 4 San Mateo Moss Beach 22 Comment
  JROH4141  Triphysaria pusilla John Hunter Thomas 1978-4-20 19092 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS40978  Triphysaria pusilla Lewis S. Rose 1965-3-25 65011 San Mateo n end San Bruno Mts.; n end San Bruno Mts. 121 Comment
  JROH4139  Triphysaria pusilla John H. Thomas 1974-4-13 17154 San Mateo Jasper Ridge Biological Preserve, Stanford University; Westridge end of ridge Comment
  UC729638  Triteleia ixioides subsp. ixioides Carl B. Wolf 1929-5-24 3724 San Mateo 0.25 mi n base of La Honda grade (on rd to Woodside) 121 Comment
  CAS-BOT-BC523100  Triteleia ixioides subsp. ixioides C. F. Leithold 1893-5-27 s.n. San Mateo Santa Cruz Peninsula, road between Woodside and King's Mountain Comment
  UCR156579  Triteleia ixioides var. ixioides P. W. Rundel 1963-7-7 1136 San Mateo San Francisco Bay watershed, Santa Cruz Mountain Range, South Spring Rd., Woodside 500 Comment
  UCR143315  Triteleia laxa David D. Keck 1932-5-6 1466 San Mateo Belmont 30 Comment
  CAS-BOT-BC526788  Triteleia laxa Ned Cahill 1974-4-29 174 San Mateo Serpentine fields bordered by chaparral near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  JROH4745  Triteleia laxa John H. Thomas 1963-5-31 10156 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Westridge end of ridge in oak woodland Comment
  SEINET12044760  Triteleia laxa L. S. Rose 1933-1 33169 San Mateo Redwood City Comment
  CAS-BOT-BC67379  Tropidocarpum gracile Le Roy Abrams 1898-4-1 s.n. San Mateo Portola. Comment
  JROH5535  Typha angustifolia John H. Thomas 1973-6-15 16852 San Mateo Jasper Ridge Biological Preserve, Stanford University. By dam in Searsville Lake Comment
  UC1241808  Typha angustifolia Malcolm A. Nobs and S. Galen Smith 1949-8-25 1556 San Mateo marshes at Sharp Park; marshes at Sharp Park Comment
  CAS-BOT-BC212678  Ulex europaeus John H. Thomas 1974-5-7 17312 San Mateo San Bruno Mountain, norther part opf county. Near the Radio Broadcast Towers near summit. Comment
  SD232694  Ulex europaeus Don Pendleton 1993-11-20 San Mateo Daly City, at 333 Hickey Blvd. Comment
  SJSU2612  Ulex europaeus D. M. Dobrinen 1966-4-6 27 San Mateo N end Crystal Springs Lakes Comment
  CAS-BOT-BC73689  Ulmus parvifolia John Thomas Howell 1966-7-24 41997 San Mateo Burlingame - in flower beds near planed trees, Trousdale Ave. just west of El Camino Real. Comment
  JROH137  Umbellularia californica John H. Thomas 1968-2-11 14143 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC91221  Umbellularia californica W. R. Dudley 1894-11-24 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Big Redwood, Ramsay's Place, Searsville. Comment
  CAS-BOT-BC382764  Uropappus lindleyi Lewis S. Rose 1933-4-30 33127 San Mateo Redwood City Comment
  JROH1294  Uropappus lindleyi John Hunter Thomas 1987-5-5 24248 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4236  Urtica dioica subsp. holosericea John H. Thomas 1964-10-2 10512 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam along stream Comment
  SEINET12036188  Urtica urens Unknown 1932-1 9160 San Mateo San Madero Creek Comment
  CAS-BOT-BC199178  Vaccinium cespitosum John H. Thomas 1963-9-11 10264 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC199352  Vaccinium ovatum Rose M. Higley 1907-4-27 141 San Mateo La Honda Comment
  CAS-BOT-BC199364  Vaccinium ovatum Elizabeth McClintock 1972-4-23 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC199373  Vaccinium ovatum Javier Penalosa 1963-3-9 2693 San Mateo Ravine 1/2 mi. east of 1314ft. summit 304 Comment
  POM131827  Vaccinium ovatum Edward L. Greene 1902-1-15 242 San Mateo West side King's Mountain. Comment
  POM216297  Vaccinium ovatum D. D. Keck 1933-5-11 2302 San Mateo Montara Summit, Montara Mountain. Comment
  POM222793  Vaccinium ovatum S. S. Berry 1909-3-13 s.n. San Mateo San Mateo Comment
  SBBG9304  Vaccinium ovatum W. D. McLellan 1954-5-17 59 San Mateo Memorial Park near Pescadero Comment
  CDA38876  Vaccinium ovatum A. C. Browne 1950-5-3 s.n. San Mateo La Honda. 0 Comment
  JEPS100467  Vaccinium parvifolium Dean W. Taylor 1988-4-29 9586 San Mateo San Bruno Mountain, northern slope of mountain 0.3 miles N22d W of summit, 371 Comment
  POM131821  Vaccinium parvifolium E. B. Copeland 1903-5-9 3249 San Mateo Big Basin of Pescadero Creek. Comment
  SEINET3559610 Image available Vagnera sessilifolia Lewis S. Rose 1933-4-9 33070 San Mateo Belmont. Comment
  JROH4256  Verbena bonariensis Carol Zabel 2006-8-21 63 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD38891  Verbena lasiostachys Cummings, Mc Callum 1933-5-24 3726 San Mateo Open Hills in Spring Valley Comment
  UC770046  Verbena lasiostachys var. scabrida L. W. Reinecke 1939-6-13 San Mateo field by Saphire St Redwood City Comment
  UC563965  Veronica americana Ira L. Wiggins 1935-8-24 8162 San Mateo entering bay at Moss Beach Moss Beach Comment
  RSA187288  Veronica persica John H. Thomas 1964-4-11 10308 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto. Comment
  UC16934  Vicia americana var. americana J. Burtt Davy Jun 21 1893-Jun 23 1893 1160 San Mateo Pilarcitos Lake and Pilarcitos Canyon; Pilarcitos Lake, Pilarcitos Canyon Comment
  RSA788949  Vicia angustifolia Peter Rubtzoff 1977-6-21 9062 San Mateo San Bruno Mountains. Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  POM16863  Vicia exigua C. F. Baker 1902-5-4 741 San Mateo Woodside. Comment
  CHSC22681  Vicia sativa Robert A. Schlising; S. Banwar 1963-3-15 2446 San Mateo Along King's Mtn. Road, southeast of entrance to Huddart Park. Comment
  JROH2445  Vicia sativa subsp. sativa John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS50208  Viola adunca W. I. Follett 1934-2-18 1 San Mateo 4 mi n of Pigeon Point (from a point beside the main highway) Comment
  JEPS50209  Viola adunca W. I. Follett 1934-2-18 2 San Mateo 9/10 mi s of Pigeon Point (along Said Highway) Comment
  SJSU15211  Viola adunca subsp. adunca Toni Corelli 2010-1-5 600 San Mateo Bean Hollow State Beach, Arroyo de los Frijoles Trail 11 Comment
  UC581528  Viola glabella Herbert L. Mason 1937-4-23 3627 San Mateo La Honda. Comment
  CAS-BOT-BC536830  Viola glabella J. H. Thomas 1949-4-14 283 San Mateo Kings Mt. Comment
  RSA15278  Viola glabella Carl B. Wolf 1927-4-3 244 San Mateo 1 mile above La Honda. Santa Cruz Mountains. Comment
  RSA120705  Viola ocellata S. S. Tillett, I. Sternback 1956-6-24 527 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  RSA130982  Viola ocellata Helen M. Edwards 1917-3-8 s.n. San Mateo Woodside. Comment
  RSA95500  Viola ocellata L. S. Rose 1954-5-17 54045 San Mateo Kings Mountain. 610 Comment
  RSA249485  Viola pedunculata John F. Emmel 1971-6-21 397 San Mateo On grassy slope above Guadalupe Cyn Parkway, 0.4 air mile SSW of Midway Village School, San Bruno Mtns. 107 Comment
  SEINET11981030  Viola pedunculata L. S. Hill 1930-1 74 San Mateo Comment
  JEPS50233  Viola sempervirens James G. Daly c. 1934 180 San Mateo 4 mi w of Skyline (Upper Corte de Madera Canyon); Santa Cruz Mountains, U