Search Results — 2000 specimen records retrieved (1319 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  SD41411  Abronia latifolia Edith A. Purer 1966-7-27 5381 San Mateo Two miles South of Pigeon Point Comment
  CAS-BOT-BC383898  Abronia latifolia W. R. Dudley 1896-11-15 s.n. San Mateo Santa Cruz Peninsula. Spanish town Comment
  SEINET11941812  Abronia latifolia M. T. Doutt 1931-1 242 San Mateo S of San Fransisco Comment
  SEINET11941839  Abronia umbellata E. H. Graham 1931-1 6938 San Mateo Ano Muevo Pt., S of San Francisco Comment
  SEINET7042346  Abronia villosa A. G. Vestal 1962-3-26 s.n. San Mateo Laguna Salada. San Francisco South quadrangle UTM Zone 10, 545384mE, 4164305mN. Comment
  UCR253356  Acacia A. C. Sanders 2014-8-3 41230 San Mateo San Francisco Bay, South San Francisco, San Francisco Bay Trail in vicinity of S Airport Drive, Utah Ave., and Haskins Way, between Hwy 101 and San Francisco Bay 6 Comment
  CAS-BOT-BC177045  Acacia dealbata J. H. Thomas 1959-11-19 8514 San Mateo Near Bayshore and University Ave., East Palo Alto Comment
  CAS-BOT-BC177046  Acacia dealbata Walter Knight; Irja Knight; Elizabeth McClintock 1963-1-12 s.n. San Mateo Crocker Ave. Comment
  CAS-BOT-BC451135  Acaena pinnatifida var. californica A. D. E. Elmer 1903-4-1 4823 San Mateo San Bruno Hills Comment
  SJSU8181  Acaena pinnatifida var. californica S. H. Casey 1969-4-17 228 San Mateo Colma Canyon, San Bruno Mountain Comment
  UC14110  Acaena pinnatifida var. californica E. L. Drew Apr. 1888 San Mateo San Pedro Ranch Comment
  UC186703  Acaena pinnatifida var. californica Michener and Bioletti May, 1892 San Mateo Cemeteries Comment
  CAS-BOT-BC451125  Acaena pinnatifida var. californica Ira L. Wiggins 1942-5-26 10096 San Mateo Near the ocean, 2 1/2 miles south of Pescadero on the Old Coast Road. Comment
  CAS-BOT-BC219601  Acanthomintha duttonii Lewis S. Rose 1936-5-28 36303 San Mateo Emerald Lake, W. of Redwood City 91 Comment
  UC729637  Acanthomintha duttonii Carl B. Wolf 1929-5-24 3723 San Mateo above Upper Emerald Lake (back of Redwood City) Comment
  POM118224  Acanthomintha obovata subsp. duttonii Harry A. Dutton, Miss H. A. Walker 1915-5-26 3819 San Mateo Near the Menlo Golf Club. Comment
  JROH165  Acer macrophyllum John Hunter Thomas 1992-7-24 25381 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek near the new bridge 87 Comment
  RSA116908  Acer macrophyllum W. R. Dudley 1906-6-14 s.n. San Mateo San Francisquito Creek, near Cedro Cottage Stanford University Comment
  RSA131268  Acer macrophyllum Josephine Randall 1906-03 s.n. San Mateo San Francisquito Creek near Stanford University Comment
Read comments
Sep 18 2013
  JROH171  Acer negundo John Hunter Thomas 1982-11-6 21217 San Mateo Jasper Ridge Biological Preserve, Stanford University. On causeway 106 Comment
  CAS-BOT-BC336919  Acer negundo var. californicum C. F. Baker 1902-4-6 472 San Mateo Crystal Springs Lake Comment
  UC484305  Acer negundo var. californicum Carl B. Wolf 1930-11-5 1809 San Mateo 4 mi w La Honda; Santa Cruz Mts., w of La Honda 91 Comment
  JROH172  Acer palmatum Carol Zabel and Ann Lambrecht 2002-4-24 46 San Mateo Jasper Ridge Biological Preserve, Stanford University. Corte Madera creek floodplain north of Leonard's bridge about 25 feet 107 Comment
  CAS-BOT-BC21581  Achillea millefolium Ned Cahill 1974-4-19 144 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC21585  Achillea millefolium Fred Hemphill 1973-5-6 749 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC21591  Achillea millefolium W. E. Lawrence; D. D. Keck 1933-5-11 L 5019 San Mateo Half Moon Bay Comment
  JEPS28872  Achillea millefolium V. F. Hesse 1962-7-19 3165 San Mateo Pescadero Beach 4 Comment
  JEPS85554  Achillea millefolium Craig Dremann 1986-9-13 335 San Mateo (along Stage road between San Gregorio and Pompanio Creek) San Gregorio; Pompanio Creek Comment
  JROH445  Achillea millefolium John H. Thomas 1976-5-26 18148 San Mateo Jasper Ridge Biological Preserve, Stanford University 154 Comment
  JROH5896  Achillea millefolium M. Ray 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trailside near Whiskey Hill Gate 180 Comment
  UCD18525  Achillea millefolium June McCaskill 1954-5-8 300 San Mateo Moss Beach. Comment
  CAS-BOT-BC21576  Achillea millefolium David D. Keck 1939-7-1 5011 San Mateo 3 mi. S. of Pescadero, 1 mile from the ocean 60 Comment
  CAS-BOT-BC21595  Achillea millefolium Catherine Toschi 1963-2-23 63 :15 San Mateo San Bruno Mountains above Crocker Avenue 152 Comment
  JROH459  Achyrachaena mollis John H. Thomas 1963-5-12 10079 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2059  Acmispon americanus var. americanus John H. Thomas 1974-10-26 17632 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2062  Acmispon americanus var. americanus John Hunter Thomas 1983-5-23 22245 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack side and low-flow crossing Comment
  JROH2063  Acmispon americanus var. americanus John Hunter Thomas 1983-6-29 22720 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI13045  Acmispon americanus var. americanus Lewis S. Rose 1964-9-5 64071 San Mateo Emerald Lake, W of Redwood City 244 Comment
  JROH2067  Acmispon glaber var. glaber W. R. Dudley 1893-7-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  OBI12973  Acmispon glaber var. glaber Robert F. Hoover 1964-9-10 9290 San Mateo Devil's slide, between Pedro-Point and Montara Comment
  CHSC894  Acmispon wrangelianus A. Koopman 1929-5-9 San Mateo Moss Beach. 7 Comment
  JROH2082  Acmispon wrangelianus Daniel Cohen 1953-4-11 10 San Mateo Jasper Ridge Biological Preserve, Stanford University; on north shore of Searsville Lake Comment
  JROH2102  Acmispon wrangelianus John Hunter Thomas 1978-4-25 19152 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5537616  Aconitum columbianum H. S. Gentry 1931-1 76 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  SEINET8216770  Adelinia grandis L. E. Detling 1933-3-20 1122 San Mateo Skyline Blvd, [State Highway 35]. Comment
  CAS-BOT-BC29291  Adenocaulon bicolor H. L. Mason 1921-7-1 s.n. San Mateo Butano Creek Comment
  CAS-BOT-BC29295  Adenocaulon bicolor A. D. E. Elmer 1903-6-1 4300 San Mateo Pescadero Creek Comment
  POM204319  Adenocaulon bicolor I. L. Wiggins 1929-7-4 3773 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  CAS-BOT-BC139954  Adenostoma fasciculatum Ned Cahill 1974-6-21 332 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  UC662651  Adenostoma fasciculatum L. S. Rose 1941-6-12 41270 San Mateo hills w. Redwood City (Emerald Lake); Emerald Lake 120 Comment
  UCR139358  Adenostoma fasciculatum David D. Keck 1932-5-25 1781 San Mateo San Francisco Bay Region, hills two miles west of Belmont 168 Comment
  CAS-BOT-BC65514  Adiantum aleuticum D. E. Breedlove 1973-9-26 35556 San Mateo Pescadero Creek County Park 365 Comment
  JROH84  Adiantum aleuticum H. J. Dengler 1965-11-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. In the crevice immediately below the west side of the Searsville Dam, and up about 30 feet from the level of the pond below the dam Comment
  SBBG51161  Adiantum jordanii J. Doty 1969-3-27 610 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
  CAS-BOT-BC202667  Aesculus californica Walter Knight; Irja Knight; Elizabeth McClintock 1964-9-11 s.n. San Mateo San Bruno Mountain. Point San Bruno Comment
  JROH2710  Aesculus californica John H. Thomas 1975-6-5 17946 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oakwoodland below Searsville Dam. 86 Comment
  SEINET3558831 Image available Aesculus californica Lewis S. Rose 1934-5-15 34260 San Mateo Burlingame. Comment
  RSA18495  Agoseris grandiflora C. B. Wolf 1927-7-14 625 San Mateo 1 mile south of summit of Kings Mt on Skyline Drive. Comment
  CAS-BOT-BC23021  Agoseris grandiflora var. grandiflora A. D. E. Elmer 1903-4-1 4490 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC23025  Agoseris grandiflora var. grandiflora George Oberlander 1949-7-30 333 San Mateo Grassland near San Andreas Lake Comment
  JROH481  Agoseris grandiflora var. grandiflora John H. Thomas 1971-5-30 15976 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC46175  Agoseris heterophylla Ned Cahill 1974-4-29 178 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH493  Agoseris heterophylla John Hunter Thomas 1981-5-8 20556 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH496  Agoseris heterophylla John Hunter Thomas 1989-5-9 24715 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM52211  Agoseris heterophylla C. F. Baker 1904-04 661 San Mateo Near Stanford University Comment
  CAS-BOT-BC15237  Agoseris hirsuta George Oberlander 1950-6-3 1023 -A San Mateo near San Andreas Lake, San Francisco Watershed Reserve Comment
  UC92296  Agoseris hirsuta C. F. Baker 1902-5-4 884 San Mateo Crystal Springs Lake Crystal Springs Lake Comment
  CAS-BOT-BC15228  Agoseris hirsuta W. R. Dudley 1899-12-3 s.n. San Mateo Top of range below Goat Ranch Road near Corte de Madera Creek Comment
  RSA116649  Agoseris hirsuta W. R. Dudley 1906-6-11 s.n. San Mateo In field E of Kings Mt. House Comment
  RSA416446  Agoseris hirsuta Edith A. Purer 1933-8-25 5515 San Mateo Sand dunes, near Skyline Drive Comment
  UC29336  Agoseris hirsuta Michener and Bioletti 1892-5-1 San Mateo Comment
  SEINET7295889 Image available Agrostis alba Malcolm A. Nobs, S. Galen Smith 1949-1 1550 San Mateo Marshes at Sharp Park Comment
  UCSC008505  Agrostis blasdalei Randall Morgan 2013-5-24 5528 San Mateo Bean Hollow State Beach, about 100 m up trail from parking lot Comment
  UCD51853  Agrostis capillaris var. aristata John Thomas Howell 1975-9-25 51509 San Mateo San Bruno Mountain. Comment
  JROH4782  Agrostis exarata W. R. Dudley 1903-1-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  JROH4783  Agrostis exarata W. Lennihan 1990-5-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Mapache trail, 100 yards south of Trail 10, right side of trail. 112 Comment
  UC36879  Agrostis exarata Michener and Bioletti 1893-6-15 134 San Mateo Baden 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-BC138866  Agrostis microphylla Le Roy Abrams 1902-5-11 2458 San Mateo Crystal Springs. 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
  JROH4160  Ailanthus altissima John Hunter Thomas 1992-5-26 25353 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along SLAC corridor 82 Comment
  CAS-BOT-BC138240  Aira caryophyllea var. caryophyllea Margaret A. Barry 1937-5-15 105 San Mateo Coal Mine Ridge. Comment
  CAS-BOT-BC138247  Aira caryophyllea var. caryophyllea Le Roy Abrams 1902-5-4 2405 San Mateo Woodside. Comment
  JROH4569  Allium John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4539  Allium amplectens John H. Thomas 1968-5-3 14442 San Mateo Jasper Ridge Biological Preserve, Stanford University. Top of ridge in grasslands. Serpentine. Comment
  JROH5959  Allium amplectens John Rawlings 2017-6-6 2100 San Mateo Jasper Ridge Biological Preserve, Stanford University; rocky serpentine near ridge crest at NW terminus of Serpentine prairie (Area C). 177 Comment
  SEINET12049324  Allium amplectens H. L. Mason 1921-1 s.n. San Mateo Jasper Ridge Comment
  UC1731201  Allium dichlamydeum Dean W. Taylor 1988-5-19 9644 San Mateo San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest, eastern-most set of PG&E high-voltage powerlines crossing the mountain 176 Comment
  CAS-BOT-BC467291  Allium dichlamydeum Walter Knight; Irja Knight 1964-5-30 603 San Mateo North facing slope, Colma Canyon Comment
  UC843252  Allium falcifolium Lewis S. Rose 1935-4-16 35095 San Mateo w Redwood City; Emerald Lake Comment
  CAS-BOT-BC469035  Allium falcifolium Ira L. Wiggins 1949-4-23 12049 San Mateo Near Emerald Lakes, west of Redwood City. Comment
  JROH4557  Allium peninsulare var. franciscanum John H. Thomas 1971-5-30 15963 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC474306  Allium unifolium L. R. Abrams 1922-5-25 s.n. San Mateo Emerald Lake, back of Redwood City Comment
  JROH1326  Alnus rhombifolia John H. Thomas 1971-5-30 15981 San Mateo Jasper Ridge Biological Preserve, Stanford University; along creek, below dam Comment
  SEINET12036414  Alnus rhombifolia Unknown 1932-10-17 7297 San Mateo near Searsville Lake Comment
  CAS-BOT-BC169340  Alnus rubra L. R. Abrams 1907-8-1 s.n. San Mateo near Pescadero on road to Half Moon Bay. Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC169347  Alnus rubra S. B. Show 1907-2-18 19 San Mateo VIcinity of Stanford University Comment
  CAS-BOT-BC137917  Alopecurus saccatus J. I. McMurphy 1906-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula. Pond near head of Crystal Springs Lakes. Comment
  JROH4576  Amaryllis belladonna Toni Corelli 2011-10-4 374 San Mateo Jasper Ridge Biological Preserve, Stanford University. Disturbed area below Douglas' iris site 89 Comment
  CAS-BOT-BC44924  Ambrosia chamissonis Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo Point San Bruno Comment
  CAS-BOT-BC44928  Ambrosia chamissonis Lewis S. Rose 1956-8-13 56144 San Mateo Princeton sand dunes 6 Comment
  SEINET11855111  Ambrosia chamissonis Unknown 1932-1 9246 San Mateo Half Moon Bay Comment
  RSA416939  Ambrosia chamissonis var. chamissonis Edith A. Purer 1933-7-27 5376 San Mateo 2 mi. S of Pigeon Pt. Comment
  CAS-BOT-BC55528  Ambrosia psilostachya L. R. Abrams 1902-9-21 2992 San Mateo Crystal Lake Comment
  CAS-BOT-BC162063  Ammophila breviligulata Rimo Bacigalupi 1922-3-27 s.n. San Mateo Mouth of Gazos Creek. Comment
  CAS-BOT-BC214048  Amsinckia Lewis S. Rose 1933-5-17 33174 A San Mateo Redwood City Comment
  JROH5694  Amsinckia intermedia John Rawlings 2015-3-23 1417 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11 at footbridge 128 Comment
  RSA116698  Anagallis arvensis W. R. Dudley 1900-3-17 s.n. San Mateo Bank near Ocean, South slope montara mts. Comment
  JROH3372  Anagallis minima John H. Thomas 1968-4-19 14304 San Mateo Jasper Ridge Biological Preserve, Stanford University 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-BC391919  Anemone grayi E. A. McGregor 1908-3-28 s.n. San Mateo Kings Mt. Comment
  CAS-BOT-BC391923  Anemone grayi Mrs. H. M. Mitchell 1932-3-31 s.n. San Mateo Skyline Boulevard Comment
  POM176875  Anemone grayi W. R. Dudley 1894-3-26 s.n. San Mateo Redwoods beyond King's Mt. House Comment
  RSA84449  Anemone grayi H. L. Mason 1927-4-24 3698 San Mateo La Honda Comment
  UC634955  Anemone oregana Herbert L. Mason 1927-4-24 3698 San Mateo La Honda Comment
  CAS-BOT-BC221457  Angelica hendersonii Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Quarry 3 Comment
  CAS-BOT-BC273181  Anisocarpus madioides Josephine D. Randall 1907-6-29 91 San Mateo Santa Cruz Peninsula. Portola Valley Comment
  CAS-BOT-BC102287  Anthemis cotula Peter Rubtzoff; Patricia Fallon 1987-8-26 9839 San Mateo San Bruno Mountains. Saddle area on north side of Guadelupe Canyon. Comment
  CAS-BOT-BC102289  Anthemis cotula Elizabeth McClintock; Carlyn Halde; Walter Knight 1963-6-23 s.n. San Mateo Lower part of Colma Canyon Comment
  CAS-BOT-BC344841  Anthemis cotula Peter Rubtzoff s.n. San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC280638  Anthoxanthum occidentale L. R. A. 1902-1-7 2258 San Mateo Kings Mountain Comment
  SEINET7614645 Image available Anthoxanthum occidentale C. F. Baker 1902-1 247 San Mateo W side King's Mountain Comment
  JROH197  Anthriscus caucalis John H. Thomas 1973-4-20 16580 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15411  Anthriscus caucalis Toni Corelli 2010-5-13 611 San Mateo Pedro Point Headlands, Pacifica CA; along Arroyo Trail 160 Comment
  JROH3599  Aphanes occidentalis John H. Thomas 1961-4-29 9181 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3600  Aphanes occidentalis John H. Thomas 1963-4-17 10036 A San Mateo Jasper Ridge Biological Preserve, Stanford University; near the "riders shack" at the Searsville end of the ridge Comment
  CAS-BOT-BC454488  Aphanes occidentalis George Oberlander 1950-3-11 448 San Mateo Grassland, Sweeney Ridge, San Francisco Watershed Reserve Comment
  UCSC008173  Apiastrum angustifolium Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC392063  Aquilegia eximia A. D. E. Elmer 1903-6-1 4271 San Mateo Crystal Springs Lake Comment
  POM87798  Aquilegia eximia Helen D. Geis 1901-07 s.n. San Mateo Crypstal Springs Comment
  CAS-BOT-BC405898  Aquilegia formosa Peter Rubtzoff 1963-5-14 1353 San Mateo Brushy hills near the road east of Pilarcitos Lake Comment
  UC1537326  Aquilegia formosa Gordon H. True Jr. 1936-4-5 388 San Mateo canyon betw san Gregorio adn Pescadero 152 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
  POM270570  Aquilegia formosa var. truncata Lyman Benson 1928-4-21 94 San Mateo Stanford University, Santa Cruz Mt., San Francisquito Creek. 122 Comment
  RSA523415  Aquilegia formosa var. truncata G. H. True 1936-4-5 388 San Mateo Canyon between San Gregorio and Pescadero 152 Comment
  CAS-BOT-BC17320  Arabis blepharophylla Alice Eastwood 1913-2-22 2453 San Mateo San Bruno Hills. Comment
  CAS-BOT-BC17338  Arabis blepharophylla M. P. Johnson 1967-2-26 10016 San Mateo Off Crocker Avenue just south of San Francisco Boundary. Comment
  UCR64488  Arabis blepharophylla Lincoln Constance, R. Bacigalupi, C. R. Bell 1951-3-25 s.n. San Mateo SE side of Colma Canyon 61 Comment
  CAS-BOT-BC17327  Arabis blepharophylla W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Peninsula. Top of hill, head of Baden Crek. Comment
  SEINET11989202  Arabis blepharophylla E. McClintock, Knight, W.; Knight, I. 1982-1 4640 San Mateo Kamchatka Point, San Bruno Mountains Comment
  RSA0125763  Arabis glabra C. B. Wolf 1927-7-14 609 San Mateo Summit of Kings Mountain Rd. Comment
  CAS-BOT-BC128674  Arbutus menziesii Ned Cahill 1974-4-30 233 San Mateo Chaparral near the intersection of Canada and Edgewood Roads, about 3 mi. westward from Redwood City. Comment
  JROH1917  Arbutus menziesii John H. Thomas 1967-4-20 12711 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC876360  Arbutus menziesii Lewis S. Rose 1935-3-7 35019 San Mateo Woodside Comment
  RSA681632  Arbutus menziesii Annuschka Deb 1989-8-18 368 San Mateo [Unspecified] Comment
  CDA22357  Arceuthobium campylopodum E. L. Labadie 1959-10-16 San Mateo Nursery, Burlingame. 0 Comment
  SEINET11989294  Arctostaphylos S. W. Edwards 1982-1 s.n. San Mateo Foothill Park Comment
  POM367229  Arctostaphylos andersonii L. H. Jones 1909-3-13 s.n. San Mateo Summit of Kings Mountain, Stanford University. 731 Comment
Read comments
Sep 22 2011
  UCD50298  Arctostaphylos andersonii Roman Gankin 1959-2-22 324 San Mateo 1.2 miles from junction of State Hwy 5 on King's Mr. Road. Comment
Read comments
Jun 24 2020
  UCD50392  Arctostaphylos andersonii Robert E. Preston 2001-5-29 1533 San Mateo Ca. 9 mi nnw of Boulder Creek. 377 Comment
  SEINET11988250  Arctostaphylos andersonii Unknown 1959-1 323 San Mateo 1.2 mi from junction of CA 5 on Kings Mt. Road Comment
  CAS-BOT-BC23501  Arctostaphylos crustacea Brandegee 1889-4-1 8 San Mateo Redwood City Comment
  CAS-BOT-BC23505  Arctostaphylos crustacea W. R. Dudley 1894-3-23 s.n. San Mateo Road to La Honda Comment
  CAS-BOT-BC23547  Arctostaphylos crustacea W. R. Dudley 1899-5-14 s.n. San Mateo Hills by road from San Andreas Lake to Pilarcitos Comment
  JROH1923  Arctostaphylos crustacea subsp. crustacea L. R. Abrams 1910-8-14 4991 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1927  Arctostaphylos crustacea subsp. crustacea Mrs. S. H. Babcock 1895-2-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Comment
  JROH1934  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1974-4-25 17208 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville end of ridge Comment
  SEINET3410941 Image available Arctostaphylos glandulosa Lewis S. Rose 1932-1-29 3221 San Mateo Belmont. Comment
  CAS-BOT-BC24729  Arctostaphylos glandulosa subsp. glandulosa John Kipping 1972-3-5 s.n. San Mateo Steep slope in upper Buckeye Canyon. Comment
  CAS-BOT-BC24488  Arctostaphylos imbricata Lewis S. Rose 1955-2-25 55002 San Mateo San Bruno Hills. Type Locality. Comment
  CAS-BOT-BC24494  Arctostaphylos imbricata Marian L. Campbell 1915-2-15 s.n. San Mateo San Bruno Hills. Comment
  CAS-BOT-BC24498  Arctostaphylos imbricata Lewis S. Rose 1955-2-23 55002 San Mateo San Bruno Hills. Ridge e. of TV Station. Type Locality. Comment
  CHSC39432  Arctostaphylos imbricata B. A. Stein 1981-3-1 442 San Mateo San Bruno Mt., northeast summit ridge just below Radio Rd. 396 Comment
  JEPS27359  Arctostaphylos imbricata Rimo Bacigalupi with Jim Roof and L. Heckard 1961-4-24 7619 San Mateo lateral ridge below and se of end of paved ridgetop rd just e of KRON TV tower and station (on Guadalupe Valley side of mt.); San Bruno Mountain 304 Comment
  JEPS91231  Arctostaphylos imbricata Dean W. Taylor 1988-4-29 9584 San Mateo San Bruno Mountain, northern slope of mountain 0.3 miles N22d W of summit, 371 Comment
  JEPS47726  Arctostaphylos montaraensis Walter Knight and Irja Knight 1966-3-27 1761 San Mateo Pacific Ridge San Bruno Mt. 358 Comment
  CAS-BOT-BC44702  Arctostaphylos regismontana A. D. E. Elmer 1903-3-1 4537 San Mateo Kings Mt. Comment
  CAS-BOT-BC44703  Arctostaphylos regismontana Walter Knight; Roger Raiche 1982-1-23 4414 San Mateo Montara Mt. 304 Comment
  CAS-BOT-BC44748  Arctostaphylos regismontana W. R. Dudley 1902-5-17 s.n. San Mateo Near King's Mountain Road 457 Comment
  JEPS98838  Arctostaphylos regismontana James B. Roof 1964-9-14 San Mateo middle summit Montara Mt. (Peak Mountain) Comment
  POM203925  Arctostaphylos regismontana E. C. Sutliffe 1934-2-2 s.n. San Mateo Kings Mountain. Comment
  RSA380854  Arctostaphylos regismontana Roman Gankin 1966-5-17 740 A San Mateo slopes of Montara Mountain 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
  UC1120847  Arctostaphylos regismontana A. E. Wieslander 1936-8-21 658 San Mateo Sierra Moreno Mt. Santa Cruz Quadrangle Comment
  UC762307  Arctostaphylos regismontana R. F. Hoover 1941-2-12 4768 San Mateo Kings Mountain Comment
  HSC7756  Arctostaphylos tomentosa subsp. crustacea L. S. Rose 1969-3-27 69006 San Mateo Kings Mountain Road, 4 mi. W of Woodside 305 Comment
  JEPS48596  Arctostaphylos tomentosa subsp. crustacea James G. Daly 1934-1 571 San Mateo San Gregorio watershed Santa Cruz Mts. (sw San Mateo Co.) Comment
  POM299443  Arctostaphylos tomentosa subsp. crustacea L. S. Rose 1942-3-30 42007 San Mateo Kings Mountain. 183 Comment
  RSA48822  Arctostaphylos tomentosa subsp. crustacea E. K. Balls 1948-3-19 7870 San Mateo 2 mi. N. of S end of State Rt. 5. 305 Comment
  RSA636847  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24650 San Mateo NW side of Montara Mtn. 150 Comment
  RSA81913  Arctostaphylos tomentosa subsp. crustacea E. K. Balls, Percy C. Everett, B. K. Balls 1953-10-16 18680 San Mateo Hwy 5, 30.8 mi. s.e. of San Francisco - San Mateo Co. line. 762 Comment
  SD38436  Arctostaphylos tomentosa subsp. crustacea Edith A. Purer 1933-5-23 3607 San Mateo Skylline Comment
  UC1042396  Arctostaphylos tomentosa subsp. crustacea Lewis S. Rose 1949-3-18 49006 San Mateo hills w Belmont 91 Comment
  UC1120127  Arctostaphylos tomentosa subsp. crustacea C. M. Belshaw 1935-1-25 1471 San Mateo 2 1/2 mi nw Sierra Moreno Peak; Santa Cruz Quadrangle 609 Comment
  UC762228  Arctostaphylos tomentosa subsp. crustacea R. F. Hoover 1941-2-12 4763 San Mateo nw Saratoga Summit Comment
  SBBG21954  Arctostaphylos uva-ursi R. F. Thorne with P. C. Everett 1963-6-9 32218 San Mateo top of San Bruno Mtn, near the TV Tower 335 Comment
  POM367521  Arctostaphylos uva-ursi var. coactilis Gary D. Wallace 1975-11-29 1516 San Mateo San Bruno Mtn., e. of parking lot at top of Radio Rd. 396 Comment
  SEINET11987185  Arctostaphylos uva-ursi var. coactilis W. Knight, Knight, I. 1981-1 3929 San Mateo Tilden Botanic Garden, Berkeley, orig. from San Bruno Mt Comment
  SEINET11987228  Arctostaphylos uva-ursi var. coactilis W. Knight, Knight, I. 1981-1 3891 San Mateo Tilden Botanic Garden, Berkeley, orig. from San Bruno Mountain Comment
  SEINET11987327  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., ca 200 yds E of shack 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
  SEINET11989211  Arctostaphylos uva-ursi var. suborbiculata E. McClintock, Knight, W.; Knight, I. 1982-1 4630 San Mateo windy Kamchatka Point, San Bruno Mountain Comment
  UCR266158  Arctotheca prostrata A. C. Sanders 2015-12-22 41887 San Mateo San Francisco Bay Region, San Bruno Mountain, Summit Loop Trail near park entrance, south of Guadalupe Canyon Parkway and east of April Brook 183 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
  POM209881  Armeria maritima subsp. californica D. D. Keck 1934-7-7 2942 San Mateo Pigeon Point. Comment
  UC877854  Armeria maritima subsp. californica Alice Eastwood 1915-6-13 4712 San Mateo Granada Comment
  CAS-BOT-BC82518  Arnica discoidea David D. Keck 1932-5-11 1775 San Mateo East side of Kings Mountain, on Kings Mountain Road 350 Comment
  JROH4838  Arrhenatherum elatius John Rawlings 2008-5-7 1021 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Road L in disturbed grassy area, under large valley oak. 107 Comment
  CAS-BOT-BC90130  Artemisia biennis George Oberlander 1949-10-8 392 San Mateo Marsh, Upper Crystal Spr. Lake Comment
  JROH514  Artemisia californica L. R. Abrams 1902-12-23 3098 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  RSA177002  Artemisia californica John H. Thomas 1964-11-29 10538 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of palo Alto. E end of Searsville Dam Comment
  SD87616  Artemisia californica Frank W. Peirson 1925-9-13 6429 San Mateo Rockaway Beach Comment
  CAS-BOT-BC93929  Artemisia douglasiana Peter H. Raven 1957-9-1 11296 San Mateo Coastal bluffs 1.1 mi. s. of Pigeon Point Lighthouse Comment
  CAS-BOT-BC400510  Asarum caudatum A. D. E. Elmer 1903-6-1 4421 San Mateo Butano Creek Comment
  POM268915  Asclepias cordifolia Lyman Benson 1930-5-3 s.n. San Mateo Above Woodside, La Honda Grade 244 Comment
  OBI25837  Asclepias fascicularis Lewis S. Rose 1965-8-27 65092 San Mateo Emerald Lake, W of Redwood City 122 Comment
  RSA18383  Asclepias fascicularis C. B. Wolf 1927-7-1 s.n. San Mateo Above Emerald Lake, back of Redwood City 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
  POM56936  Aster radulinus C. F. Baker 1902-9-15 1546 San Mateo Black Mt. Comment
  SEINET946262  Asteraceae L. S. Rose 1948-1 48235 San Mateo Hills W. of Belmont 183 Comment
  JROH1996  Astragalus gambelianus John Hunter Thomas 1984-4-2 23273 3 C San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge fence Comment
  CAS-BOT-BC186750  Astragalus gambelianus Marck Menke 1998-4-24 Menke 3 San Mateo On a slope immediately west of the ravine west of Juncus Ravine on the south slope of San Bruno Mt. Ridge, about the Terrabay development 121 Comment
  CAS-BOT-BC186757  Astragalus gambelianus Lois E. James 1947-4-11 1757 San Mateo Hills back of Redwood City Comment
  CAS-BOT-BC186764  Astragalus gambelianus Ira L. Wiggins 1925-4-11 1624 San Mateo Hillside across from Schroder's. One and one half miles above Stanford University Comment
  SD48960  Astragalus gambelianus Louis E. James 1947-4-11 1758 San Mateo Hills back of Redwood City. Comment
  CAS-BOT-BC194429  Astragalus nuttallii var. virgatus Copeland 1905-6-3 3299 San Mateo Montara Pt. Comment
  CAS-BOT-BC194430  Astragalus nuttallii var. virgatus Copeland 1905-6-3 3299 San Mateo Montara Pt. Comment
  CAS-BOT-BC177970  Astragalus nuttallii var. virgatus A. A. Heller 1906-6-8 8385 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks in soil. Comment
  RSA498284  Astragalus nuttallii var. virgatus E. A. Purer 1933-8-13 5405 San Mateo Santa Clara Valley near Baden Station. Comment
  JEPS54823  Astragalus pycnostachyus W. L. Jepson 1910-8-17 4158 San Mateo Tunitas Creek Comment
  UCSB53638  Atriplex hortensis Wetland Research Associates 1986-8-21 San Mateo 1/4 mi. from San Francisco Bay, between Steinberger Slough and Redwood Creek, Belmont Comment
  JEPS15531  Atriplex leucophylla G. Thomas Robbins 1956-8-18 3739 San Mateo along ocean shore near the mouth Pomponio Creek; near mouth Pomponio Creek Comment
  UC583161  Atriplex leucophylla Lewis S. Rose 1936-8-16 36713 San Mateo Granada Granada (Sea Beaches) 3 Comment
  POM263676  Atriplex leucophylla L. S. Rose 1941-9-27 41460 San Mateo Princeton. 1 Comment
  JROH4844  Avena fatua John Hunter Thomas 1984-4-24 23304 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5780  Avena fatua John Rawlings 2016-4-26 1756 San Mateo Jasper Ridge Biological Preserve, Stanford University. On birder transect path on ridge-top near coast live oaks just south of serpentinite contact. 192 Comment
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Oct 31 2016
  CAS-BOT-BC145734  Avena sativa Ned Cahill 1974-5-30 315 San Mateo About 3 miles westward from Redwood City. Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  UCD56091  Avena strigosa T. C. Fuller 1971-6-10 19879 San Mateo 1.6 km east of San Gregorio. Comment
  CAS-BOT-BC98698  Baccharis douglasii W. R. Dudley 1894-9-22 s.n. San Mateo Preston's Ravine, Searsville - Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC98700  Baccharis douglasii John Thomas Howell 1926-10-9 2217 San Mateo Near Lake San Andreas Comment
  HSC5124  Baccharis douglasii L. S. Rose 1969-8-22 69099 San Mateo Skyline Blvd. and La Honda Rd. 610 Comment
  UC750699  Baccharis glutinosa Lewis S. Rose 1946-7-14 46220 San Mateo Searsville Lake margin Searsville Lake 68 Comment
  UCR256527  Baccharis glutinosa Peter Rubtzoff 1976-10-5 8908 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  POM213037  Baccharis pilularis C. B. Wolf 1934-11-9 6240 San Mateo 200 yards south of Pigeon Point Lighthouse 15 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
  RSA1947  Baccharis pilularis C. B. Wolf 1930-11-5 1063 San Mateo 4 mi. S of Pescadero. 8 Comment
  SD30702  Baccharis pilularis Edith A. Purer 1932-7-18 4022 San Mateo Near Pigeon Point Comment
  UC87151  Baccharis pilularis C. F. Baker 1902-10-1 1740 San Mateo Pillar Point Pacific Coast Comment
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Feb 2 2012
  POM199570  Baccharis pilularis Horace Davis 1907-09 116 San Mateo Camp Idle, Santa Cruz Mts. Comment
  SD30701  Baccharis pilularis Edith A. Purer 1922-8-4 5409 San Mateo Clay hillside near Baden Station. Comment
  JROH549  Baccharis pilularis subsp. consanguinea John H. Thomas 1970-7-5 15663 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5742  Baccharis pilularis subsp. pilularis John Rawlings 2015-11-7 1648 San Mateo Jasper Ridge Biological Preserve, Stanford University; 55 yards up Rd E from its Trail 14 intersection. 122 Comment
  CAS-BOT-BC166953  Barbarea orthoceras Peter Rubtzoff 1975-5-21 7961 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH1454  Barbarea orthoceras John Hunter Thomas 1989-4-20 24643 San Mateo Jasper Ridge Biological Preserve, Stanford University; to below the dam Comment
  UCSB18661  Barbarea orthoceras Schulte, John 1963-4-14 San Mateo Jasper Ridge; 3 miles southwest of Stanford Campus; between Santa Clara Valley and main front of Santa Cruz Mountains 121 Comment
  SD99578  Barbarea orthoceras Darley F. Howe 1968-4-14 San Mateo San Francisco Game Reserve near San Bruno. Comment
  JROH3915  Bellardia trixago John H. Thomas 1974-5-19 17382 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  JROH3925  Bellardia trixago John Hunter Thomas 1986-6-7 24083 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC100196  Bellis perennis Ray H. Yarris 1951-5-20 65 San Mateo Kings Mountain 91 Comment
  CAS-BOT-BC100195  Bellis perennis George Oberlander 1950-5-6 864 San Mateo on South Cahill Ridge Comment
  CAS-BOT-BC75866  Berberis pinnata W. R. Dudley 1896-11-14 s.n. San Mateo Santa Cruz Peninsula. Hill west of Crystal Springs Lake. Comment
  CAS-BOT-BC75882  Berberis pinnata Robert Setzer 1969-3-29 2138 San Mateo Coloma Canyon, San Bruno Mountain. Comment
  CAS-BOT-BC75883  Berberis pinnata Elizabeth McClintock; Arthur Menzies 1963-2-16 s.n. San Mateo San Bruno Mountain. Near top of mountain, not far from radio station. 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-BC31088  Bolboschoenus maritimus Ira L. Wiggins 1980-8-29 22258 San Mateo Bed and lower bank of San Francisquito Creek, ca 200 m upstream from Pope St Bridge Comment
  CAS-BOT-BC280862  Bolboschoenus maritimus subsp. paludosus Elizabeth McClintock; Paul Reeberg 1989-5-2 s.n. San Mateo San Bruno Mountains. PG&E Marsh 4 Comment
  UC140513  Bowlesia incana C. F. Baker 1902-4-12 510 San Mateo Pacific Coast, La Honda La Honda; Pacific Coast, La Honda Comment
  CAS-BOT-BC95342  Bowlesia incana Walter Knight; Irja Knight 1965-5-9 1099 San Mateo Devil's Arroyo, San Bruno Mountain 274 Comment
  CAS-BOT-BC95343  Bowlesia incana Walter Knight; Irja Knight 1965-3-28 1107 San Mateo Trillium Gulch, San Bruno Mountain Comment
  CAS-BOT-BC145405  Brachypodium distachyon Glenn L. Clifton 1988-5-11 17090 San Mateo Santa Cruz Mountains. San Bruno Mountain, crest of northeast ridge of Guadalupe Hills (separating Guadalupe Valley from Vistacion Valley). Right of way of eastern most set of PG&E high voltage powerlines crossing the mountian. 128 Comment
  JROH5658  Brachypodium sylvaticum John Rawlings 2014-7-23 1267 San Mateo Jasper Ridge Biological Preserve, Stanford University; along downhill verge of Rd G between Rd C and the first small drainage crossing Rd G 108 Comment
  CAS-BOT-BC28048  Brassica fruticulosa Elizabeth McClintock; Paul Reeberg 1989-4-10 s.n. San Mateo Guadalupe Hills. Near horse corral. Comment
  CAS-BOT-BC29992  Brassica juncea Fred Hemphill 1973-5-14 814 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  JEPS26851  Brassica nigra Rimo Bacigalupi with J. H. Thomas and L. R. Heckard 1961-5-23 7714 San Mateo along Alpine Road near site of abandoned Alpine School Alpine School; Alpine Road 487 Comment
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Mar 12 2009
  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-BC36794  Brassica rapa John H. Thomas 1965-4-29 10605 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  JROH1465  Brassica rapa John H. Thomas 1977-2-17 18464 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Whiskey Hill and Sand Hill Roads Comment
  CAS-BOT-BC36798  Brassica rapa Daniel Cohen 1953-5-9 71 San Mateo Top of sea cliff at Pescadero. Comment
  JROH4868  Briza maxima John Hunter Thomas 1986-5-17 24051 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dam to Rattlesnake Rock Comment
  JROH4872  Briza maxima John Hunter Thomas 1988-6-1 24492 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grassy area below dam. Comment
  JROH4877  Briza maxima John Hunter Thomas 1992-5-5 25207 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near picnic area and vicinity Comment
  UCD57153  Briza maxima Anonymous 1991-5-27 24 San Mateo Along Lake Merced, in Daly City. Comment
  CAS-BOT-BC145328  Briza minor George Oberlander 1950-4-23 745 San Mateo San Francisco Watershed Reserve. Sawyer Ridge. Comment
  CAS-BOT-BC145338  Briza minor Phillip C. Wheeler 1965-5-11 s.n. San Mateo San Bruno Mountains. Pig Ranch Ravine. Comment
  CAS-BOT-BC145341  Briza minor Walter Knight; Irja Knight 1965-4-24 1027 San Mateo San Bruno Mountain. Point San Bruno. Comment
  JROH4888  Briza minor John Hunter Thomas 1983-4-5 21320 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along the low-flow crossing Comment
  SEINET11675202  Briza minor Unknown 1932-1 9112 San Mateo above Spring Valley Lakes Comment
  CAS-BOT-BC482183  Brodiaea appendiculata Rimo Bacigalupi 1922-5-31 s.n. San Mateo Cedro field near Stanford University Comment
  JROH4590  Brodiaea terrestris subsp. terrestris John H. Thomas 1975-5-26 17918 a San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4591  Brodiaea terrestris subsp. terrestris John Hunter Thomas 1981-4-23 20481 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC483176  Brodiaea terrestris subsp. terrestris James McMurphy 1906-5-8 s.n. San Mateo Near head of Crystal Lake Comment
  RSA212158  Brodiaea terrestris subsp. terrestris L. S. Rose 1970-4-8 70024 San Mateo Black Mtn, W of San Mateo. 122 Comment
  CAS-BOT-BC144139  Bromus Ned Cahill 1974-5-30 325 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  POM234978  Bromus carinatus I. L. Wiggins 1928-4-22 2946 San Mateo Moss Beach Comment
  RSA195508  Bromus carinatus John H. Thomas 1966-4-13 11558 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  UCD58019  Bromus carinatus L. R. Abrams 1902-5-11 2X 62 San Mateo Crystal Springs. Comment
  UCD58232  Bromus carinatus Lewis S. Rose 1956-5-7 56069 San Mateo Skyline Blvd. W of San Mateo. 182 Comment
  CAS-BOT-BC149013  Bromus carinatus var. carinatus Walter Knight; Irja Knight 1964-3-15 s.n. San Mateo San Bruno Mountain. Colma Canyon. South ridge. Comment
  JROH4895  Bromus carinatus var. carinatus John Hunter Thomas 1977-6-16 18740 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC148986  Bromus carinatus var. carinatus W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. South slope of Montana Mountains. Comment
  CAS-BOT-BC148991  Bromus carinatus var. carinatus W. R. Dudley 1899-5-19 s.n. San Mateo Santa Cruz Mountain Peninsula. Head of San Mateo Creek. Comment
  CAS-BOT-BC148769  Bromus carinatus var. marginatus Elizabeth McClintock; Paul Reeberg 1989-5-23 s.n. San Mateo San Bruno Mountains. In valley west of Guadlupe Hills. 76 Comment
  CAS-BOT-BC389767  Bromus carinatus var. marginatus R. D. Hennessey 1964-4-26 60 San Mateo Area where Pilarcitos Creek empties into ocean several hundred yards from shore Comment
  UC1755115  Bromus catharticus Dean W. Taylor 1988-3-30 9492 San Mateo 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 176 Comment
  CAS-BOT-BC155725  Bromus diandrus John H. Thomas 1963-5-20 10136 San Mateo Ano Nuevo Island, about 0.5 mile off shorea nd about 20 miles northwest of Santa Cruz. Comment
  CAS-BOT-BC155726  Bromus diandrus Javier Penalosa 1963-3-30 2765 a San Mateo San Bruno Mountains. Guadalupe Valley. 30 Comment
  SD99496  Bromus diandrus Ira L. Wiggins 1975-4-17 22141 San Mateo Menlo Park; between San Francisquito Creek and Willow Road; NE side of Southern Pacific right-of-way Comment
  SEINET11675595  Bromus diandrus Unknown 1932-1 9128 San Mateo Stanford Farm Comment
  JROH4930  Bromus hordeaceus John Rawlings 2010-4-28 1092 San Mateo Jasper Ridge Biological Preserve, Stanford University; on slope south of the visitor parking lot 119 Comment
  JROH4931  Bromus hordeaceus John Rawlings 2010-4-28 1093 San Mateo Jasper Ridge Biological Preserve, Stanford University. SW corner of Sun Field Station. 119 Comment
  SD30516  Bromus hordeaceus 1933-4-10 2 San Mateo Stanford University; Botany Garden Comment
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Apr 12 2012
  UCD164700  Bromus hordeaceus Peter Rubtzoff 1976-6-13 8634 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC162309  Bromus madritensis Paul Arnaud 1941-4-17 s.n. San Mateo Redwood City, Jefferson Avenue. Comment
  JROH4942  Bromus madritensis subsp. madritensis John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10520334  Bromus molliformis Delzie Demaree 1932-5-16 Demaree 9141 San Mateo Spring Valley Road. Comment
  CDA1797  Bromus mollis E. L. Labadie 1941-4-13 San Mateo Bayshore Freeway, Coyote Point. 0 Comment
  SEINET10933427  Bromus rigidus Delzie Demaree 1932-5-12 Demaree 9128 San Mateo Stanford Farm. Dry situations. Comment
  CAS-BOT-BC161754  Bromus rubens Walter Knight; Irja Knight 1965-5-15 s.n. San Mateo San Bruno Mountain. Pig Ranch Ravine. Comment
  UCD59622  Bromus rubens P. Rodriguez-Rojo 1997-4-12 s.n. San Mateo Edgewood County Park. 200 Comment
  SEINET3923305  Bromus stamineus Lewis S. Rose 1963-4-27 63002 San Mateo Skyline Blvd, open hills, west of San Mateo.; 0 91 Comment
  JROH4960  Bromus sterilis W. H. Lennihan 1990-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Across dam, 50 yards to r. on path, r. side of path on edge, just next to 10-12 foot Sambucus mexicana. 111 Comment
  JROH4961  Bromus sterilis John Rawlings 2013-4-3 1159 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near power poles in partial shade on Rattlesnake Rocks trail off of Rd. D. 130 Comment
  CAS-BOT-BC185395  Bromus vulgaris W. R. Dudley 1900-5-19 s.n. San Mateo Santa Cruz Mountain Peninsula. Stage road La Honda Summit. 518 Comment
  JROH5914  Bromus vulgaris John Hunter Thomas 1978-7-8 19257 San Mateo Jasper Ridge Biological Preserve, Stanford University. Redwood area along San Francisquito Creek. Comment
  POM272601  Cakile edentula Lyman Benson 1937-6-27 8396 San Mateo Moss Beach. 3 Comment
  CAS-BOT-BC36871  Cakile edentula var. edentula W. R. Dudley 1908-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Laguna Salada. Comment
  UC1301004  Cakile maritima Helen K. Sharsmith 1963-3-23 5251 San Mateo near Half Moon Bay; San Francisco Bay Region Comment
  UC984909  Cakile maritima Ira L. Wiggins 1949-7-2 12196 San Mateo Pescadero Beach Comment
  UCSC004915  Cakile maritima Monica Larenas 1985-6-1 19 San Mateo Hwy 1, 0.5 mi S of Pescadero State Beach Comment
  CAS-BOT-BC36958  Cakile maritima var. maritima Robert T. Orr 1961-6-27 s.n. San Mateo Ano Nuevo Island. Comment
  CAS-BOT-BC185151  Calamagrostis nutkaensis A. D. E. Elmer 1903-6-1 4693 San Mateo San Pedro. Comment
  POM199095  Calamagrostis nutkaensis A. D. E. Elmer 1903-05 5040 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
  JROH3320  Calandrinia ciliata Duncan M. Porter 1961-2-18 745 San Mateo Jasper Ridge Biological Preserve, Stanford University; Westridge end of ridge Comment
  UC1084389  Calandrinia ciliata G. Thomas Robbins 1937-4-11 99 San Mateo grassy meadow near Spring Valley Lakes (along road to Woodside) Comment
  CDA20324  Calendula arvensis Anon. 2005-3-2 PDR 1329519 San Mateo San Bruno. Balboa Way, next to San Bruno Park. 0 Comment
  UC306621  Callitriche verna A. D. E. Elmer Jun 1903 4279 San Mateo Lake San Andreas Comment
  SEINET7097930  Calochortus albus A. G. Vestal 1937-6-15 s.n. San Mateo Lat. 37 14' 13ao N, Long. 122 24' 55ao W(NAD27 converted to WGS84 decimal degrees). Pebble Beach west of Pescadero. UTM Zone 10, 551863 mE, 4121109 mN. Comment
  UCD139448  Calochortus albus Adeline Fredericks 1920-4-1 s.n. San Mateo Lake San Andreas. Comment
  CAS-BOT-BC492167  Calochortus albus Paul F. Covel 1936-4-24 271 San Mateo ft Saratoga Grade Comment
  CAS-BOT-BC492204  Calochortus albus Josephine D. Randall 1907-6-8 219 San Mateo Redwood Grove in Portola Valley Comment
  CAS-BOT-BC492221  Calochortus albus Paul Arnaud 1941-4-19 s.n. San Mateo Redwood City - Hills - near Hesler farm entrance Comment
  JROH4619  Calochortus argillosus John H. Thomas 1962-5-31 9893 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC648348  Calochortus luteus Marion Ownbey and Ruth P. Ownbey 1938-7-7 1699 San Mateo above Searsville Lake; Santa Cruz Mountains Comment
  POM258692  Calochortus luteus Marion Ownbey, Ruth P. Ownbey 1938-7-7 1699 San Mateo Santa Cruz Mountains, above Searsville Lake Comment
  CHSC13523  Calochortus tolmiei S. Villard 1974-4-28 4 San Mateo Found on King's Mt. Road, Woodside, ca. 1 mi w of Mounted Patrol Grounds. 152 Comment
  CAS-BOT-BC496828  Calochortus tolmiei W. R. Dudley 1907-4-27 s.n. San Mateo Kings Mt., Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC132539  Calochortus umbellatus M N. Paulson 1915-4-10 s.n. San Mateo Kings Mountain Comment
  RSA18382  Calochortus venustus Carl B. Wolf 1927-7-1 526 San Mateo Above Emerald Lake, back of Redwood City Comment
  SEINET12044558  Calochortus venustus L. S. Rose 1931-1 s.n. San Mateo Redwood City 610 Comment
  CAS-BOT-BC270668  Calycadenia multiglandulosa L. S. Rose 1934-5-23 34278 San Mateo Emerald Lake Comment
  JROH555  Calycadenia multiglandulosa James I. McMurphy 1909-6-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH573  Calycadenia multiglandulosa John Hunter Thomas 1987-5-5 24252 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC662579  Calycadenia multiglandulosa L. S. Rose 1941-6-12 41268 San Mateo hills w Redwood City; Emerald Lake 120 Comment
  UCR70789  Calycadenia multiglandulosa L. S. Rose 1934-5-23 34278 San Mateo Emerald Lake. 160 Comment
  CAS-BOT-BC224651  Calystegia purpurata subsp. purpurata Lewis S. Rose 1950-5-20 50141 San Mateo Emerald Lake region, hills w. of Redwood City 243 Comment
  CAS-BOT-BC224665  Calystegia purpurata subsp. purpurata Theo. C. Zschokke 1903-7-10 s.n. San Mateo Goat Ranch Road, Corte de [Corte] Madera Creek Comment
  CAS-BOT-BC224666  Calystegia purpurata subsp. purpurata Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo San Bruno Mountains. In Colma Canyon Comment
  HSC59092  Calystegia purpurata subsp. purpurata Clark L. Miller 1978-6-15 159 San Mateo Off old Hwy. 1, about 4 mi. S of Half Moon Bay Comment
  JROH1840  Calystegia purpurata subsp. purpurata John H. Thomas 1969-6-4 15112 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1841  Calystegia purpurata subsp. purpurata John H. Thomas 1968-5-22 14457 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS10201  Calystegia soldanella Rimo Bacigalupi with G. T. Robbins 1954-6-18 4558 San Mateo one-half mi n Pigeon Point; one-half mi n of Pigeon Point Comment
  RSA394835A  Calystegia soldanella E. A. Purer 1933-7-27 18830 San Mateo Two miles south of Pigeon Point. Comment
  RSA130152  Calystegia soldanella Roxana S. Ferris 1921-5-29 2187 San Mateo New Years Pt. Comment
  SJSU8763  Calystegia subacaulis B. L. Ledwith 1960-4-13 San Mateo San Francisco Game Refuge 17 mi S of San Francisco Comment
  RSA21998  Camissonia micrantha J. T. Howell 1938-5-1 13773 San Mateo Colma Canyon. Comment
  SEINET5542144  Camissonia ovata H. S. Gentry 1931-1 33 San Mateo Collected 2 miles W of San Bruno. Comment
  SD38643  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Edith A. Purer 1934-8-14 5388 San Mateo 2.0 miles south of Pigeon Point. Comment
  UCSC007726  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  POM204507  Campanula prenanthoides I. L. Wiggins 1929-7-4 3779 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  RSA18477  Campanula prenanthoides C. B. Wolf 1927-7-20 646 San Mateo La Honda Grade Comment
  RSA18502  Campanula prenanthoides C. B. Wolf 1927-7-14 618 San Mateo Summit of Kings Mountain Rd. Comment
  SEINET10463364  Campanula prenanthoides Elvander 1970-7-5 ELVANDER 287 San Mateo 1 mile on Water Pant road from intersection with entrance to Butano State Park. Sandy loam, redwood forest. 152 Comment
  CAS-BOT-BC37656  Cardamine californica W. R. Dudley 1893-4-1 s.n. San Mateo Santa Cruz Peninsula. Ravine near La Honda. Comment
  CAS-BOT-BC37676  Cardamine californica A. D. E. Elmer 1903-4-1 4468 San Mateo Portola. Comment
  CAS-BOT-BC37681  Cardamine californica George Oberlander 1950-2-1 453 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon. Comment
  CAS-BOT-BC37685  Cardamine californica David D. Keck 1393 San Mateo Santa Cruz Mountains. La Honda road above Searsville Lake. Comment
  CAS-BOT-BC37691  Cardamine californica Alice Eastwood 1933-4-30 s.n. San Mateo Lake Pilarcitos. Comment
  HSC6686  Cardamine californica P. A. Murphy 1965-4-16 37 San Mateo 6 mi. from Half Moon Bay in Hatches Woods Comment
  JEPS23932  Cardamine californica var. integrifolia LeRoy Abrams 1902-3-16 2274 San Mateo Kings Mountain Comment
  POM204309  Cardamine californica var. integrifolia I. L. Wiggins 1931-2-21 5089 -a San Mateo Pescadero Beach, 0.5 mile N of Pebble Beach hotel. Comment
  RSA159431  Cardamine californica var. integrifolia R. C. Rollins 1941-2-22 2937 San Mateo Santa Cruz Mts., about 8 miles NW of Palo Alto. 152 Comment
  SEINET12004997  Cardamine integrifolia Patterson 1907-1 s.n. San Mateo Kings Mt., Santa Cruz Mountain peninsula Comment
  CAS-BOT-BC166805  Cardamine oligosperma Peter Rubtzoff 1976-3-28 8451 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  SEINET11971639  Cardamine oligosperma Unknown 1941-1 41021 San Mateo near San Bruno Comment
  CDA6894  Carduus tenuiflorus Agricultural Commissioner May 1955 San Mateo San Mateo. 0 Comment
  CAS-BOT-BC17854  Carex amplifolia Mrs. H. C. Cantelow 1940-5-23 3063 San Mateo Lake Pelachetis. [Pilarcitos?] Comment
  CAS-BOT-BC17849  Carex amplifolia W. R. Dudley 1906-6-8 s.n. San Mateo The Santa Cruz Mountain Peninsula. In Squealer Gulch above water trough. Comment
  CAS-BOT-BC34077  Carex brevicaulis Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5265 San Mateo Pigeon Point. 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-BC18936  Carex densa Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5246 San Mateo Half Moon Bay. Comment
  CAS-BOT-BC18942  Carex densa W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Summit Springs, near King's Mountain. Comment
  JROH4335  Carex densa John Rawlings 2010-5-19 1051 San Mateo Jasper Ridge Biological Preserve, Stanford University. A few yards south of Trail 1 and west of its intersection with Trail a. 88 Comment
  CAS-BOT-BC18943  Carex densa W. R. Dudley 1900-3-18 s.n. San Mateo Santa Cruz Mountain Peninsula. Above keepers house, San Andreas Reservoir. Comment
  UCD140265  Carex densa John Thomas Howell 1938-5-1 13785 San Mateo near South San Francisco. Comment
  RSA304147  Carex dudleyi Alice Eastwood, John Thomas Howell 1937-5-7 4327 San Mateo Visatacion Valley. Comment
  SEINET10649935  Carex dudleyi Lewis S. Rose 1939-4-14 Rose 39064 San Mateo South San Francisco. 15 Comment
  CAS-BOT-BC21819  Carex harfordii W. R. Dudley 1925-6-12 s.n. San Mateo Pescadero Creek below Peters Creek. Comment
  CAS-BOT-BC119347  Carex obnupta George Thomas Oberlander 1950-5-6 828 San Mateo Pilarcitos Lake, Marsh. 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-BC117644  Carex serratodens LeRoy Abrams 1902-5-4 2425 San Mateo Woodside. Comment
  UC823232  Carex serratodens L. R. Abrams 1902-5-4 2425 San Mateo Woodside Comment
  CAS-BOT-BC210004  Carex subbracteata Peter Rubtzoff 1976-6-30 8707 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, westernmost part of the area. Comment
  SEINET6192755 Image available Carex subbracteata J. T. Howell 1938-5-1 13782 San Mateo near South San Francisco Comment
  CAS-BOT-BC116820  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5254 San Mateo 2 mi N of Pescadero 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-BC116830  Carex subbracteata var. subbracteata W. R. Dudley 1900-3-17 s.n. San Mateo Field north of Seal Cove. 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
  SEINET7578974 Image available Carex tumulicola Wilhelm N. Suksdorf 1913-6-20 377 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC230110  Carpobrotus chilensis Elsie Zeile 1909-8-23 s.n. San Mateo Granada Comment
  SJSU2920  Carpobrotus chilensis C. H. Bracker 1966-5-17 117 San Mateo near Moss Beach Comment
  JROH4011  Castilleja H. J. Dengler 1961-7-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; bank of Corte Madera Creek in southern-most corner of the preserve Comment
  JEPS6875  Castilleja Rimo Bacigalupi with G. T. Robbins 1954-6-18 4549 San Mateo along Skyline Blvd, 1 1/2 mi N of the crossing of the page Mill (Alpine) road Comment
  CAS-BOT-BC249189  Castilleja affinis E. W. Rust 1907-4-27 120 San Mateo Kings Mountain Comment
  CAS-BOT-BC249194  Castilleja affinis E. McClintock; Philip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. Below Nike station Comment
  RSA516625  Castilleja affinis R. C. Bacigalupi, J. R. Sweeney, G. Bacigalupi, Cliff Fenneman 1954-8-3 4733 San Mateo Heights above Thornton Beach close to State Highway No. 1. 55 Comment
  UCSC000665  Castilleja affinis H. S. Yates 1935-3-2 5010 San Mateo 0.5 mile S.E. of Pigeon Pt. Pigeon Pt - Santa Cruz 30 Comment
  JROH3939  Castilleja affinis subsp. affinis Duncan M. Porter 1961-4-8 751 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge Comment
  JROH3953  Castilleja affinis subsp. affinis John Rawlings 2013-4-23 1172 San Mateo Jasper Ridge Biological Preserve, Stanford University. Uphill from Trail c. 180 Comment
  SJSU15408  Castilleja affinis subsp. affinis Toni Corelli 2010-5-13 609 San Mateo Pedro Point Headlands, Pacifica CA; along Arroyo Trail 110 Comment
  UCR139351  Castilleja ambigua David D. Keck 1932-4-29 1453 San Mateo San Francisco Bay Region, Burlingame-San Mateo city limits, Bayshore Highway 3 Comment
  JROH3957  Castilleja attenuata John H. Thomas 1974-4-13 17155 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3976  Castilleja densiflora subsp. densiflora Duncan M. Porter 1961-4-8 749 San Mateo Jasper Ridge Biological Preserve, Stanford University; near gate on top of ridge Comment
  JEPS18929  Castilleja exserta subsp. latifolia Rimo Bacigalupi with S. Galen Smith, G. T. Robbins and Lauramay Dempster 1956-5-15 5647 San Mateo about at the center of Montara Mountain Montara Mountain 487 Comment
  CHSC39846  Castilleja foliolosa Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  SD38137  Castilleja franciscana Edith A. Purer 1933-5-25 3653 San Mateo Spring Valley Lakes Comment
  JEPS103897  Castilleja latifolia T. I. Chuang and F. M. Chuang 1991-6-29 7851 San Mateo Ca. 1/3 mile south of Pescadero State Beach Comment
  JEPS112712  Castilleja rubicundula subsp. lithospermoides Dean W. Taylor 1994-5-10 14271 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
  JROH3989  Castilleja rubicundula subsp. lithospermoides L. R. Abrams 1934-4-18 13568 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  JROH3990  Castilleja rubicundula subsp. lithospermoides James Newman 1951-4-21 10 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  JROH3991  Castilleja rubicundula subsp. lithospermoides Robert Robertson 1954-4-23 101 San Mateo Jasper Ridge Biological Preserve, Stanford University 170 Comment
  JROH4001  Castilleja rubicundula subsp. lithospermoides John H. Thomas 1978-5-12 19199 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4010  Castilleja rubicundula subsp. lithospermoides John Hunter Thomas 1989-5-11 24729 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS47427  Castilleja subinclusa subsp. franciscana L. R. Heckard 1964-7-26 1425 San Mateo 0.4 mi from Lobitos Creek rd. jct. rd. with Verde Road (old highway) (above Lobitos Creek valley) Comment
  JEPS83044  Castilleja subinclusa subsp. franciscana Roy E. Buck, Randall A. Morgan, James A. West 1983-7-15 430 San Mateo ca 1.7 km sw Pilarcitos Dam (and 5.8 km nw of intersection of Calif Hwys 35 and 92, along crest of Cahill Ridge, on e side of gravel rd); San Francisco Watershed Reserve, Cahill Ridge 335 Comment
  JEPS30959  Castilleja subinclusa subsp. franciscana D. E. Breedlove 1961-6-18 602 San Mateo 3 mi s Half Moon Bay-San Mateo Road (on State Hwy 5); Santa Cruz Mountains 365 Comment
  JEPS3821  Castilleja subinclusa subsp. franciscana James G. Daly Apr 1935 260 San Mateo near La Honda (San Gregorio watershed); Santa Cruz Mts., San Gregorio Comment
  JEPS88801  Castilleja subinclusa subsp. franciscana T. I. and F. M. Chuang 1991-7-3 7859 San Mateo 0.8 mi sw Interstate 280 junction with Route 92 (on Route 92) Comment
  CAS-BOT-BC32579  Castilleja wightii Adolph Daniel Edward Elmer 1903-7-1 4761 San Mateo San Pedro Comment
  JEPS20780  Castilleja wightii Lawrence Beane 1949-6-2 484 San Mateo s of Pescadero (beyond lighthouse on hillside, Highway 1) Comment
  RSA10376A  Castilleja wightii H. A. Barker 1926-5-1 606 San Mateo Kings Mt. Comment
  RSA191943  Castilleja wightii Robert F. Thorne, Percy C. Everett 1963-6-9 32210 San Mateo On top of San Bruno Mountain, near TV tower. 335 Comment
  RSA505384  Castilleja wightii R. C. Bacigalupi, G. Thomas Robbins 1955-8-4 5446 San Mateo Along Calif. Highway No. 1, at western end of Montara Mountain, 1.1 mi. north of northern limits of town of Montara. Comment
  UC1327236  Castilleja wightii John T. Doyen 1966-3-28 37 San Mateo San Bruno Mountains; near Radio Towers on top Comment
  CDA41387  Castilleja wightii T. I. & F. M. Chuang 1991-7-1 7846 San Mateo 1.1 mile north of Montara. 0 Comment
  JEPS60427  Castilleja wightii T. I. Chuang and F. M. Chuang 1969-6-22 6667 San Mateo 2.4 mi n Highway 1 junction with Highway 84 at San Gregorio (along Highway 1) Comment
  JEPS88840  Castilleja wightii T. I. and F. M. Chuang 1991-7-1 7849 San Mateo ca 7 mi s Halfmoon Bay 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
  CAS-BOT-BC39377  Caulanthus lasiophyllus John H. Thomas 1961-5-13 9339 San Mateo At Franklin Point. Comment
  CAS-BOT-BC40395  Caulanthus lasiophyllus Walter Knight; Irja Knight 1965-4-25 1090 San Mateo San Bruno Mountain. In Devil's Arroyo. Comment
  JROH3530  Ceanothus oliganthus var. sorediatus John H. Thomas 1973-3-12 16492 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3531  Ceanothus oliganthus var. sorediatus John H. Thomas 1975-5-12 17847 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1206472  Ceanothus oliganthus var. sorediatus Le Roy Abrams 1902-4-5 2307 San Mateo Searsville Comment
  CAS-BOT-BC51238  Ceanothus papillosus George Oberlander 1950-3-18 522 San Mateo San Francisco Watershed Reserve, south boundary Comment
  UC1071222  Ceanothus papillosus C. J. Kraebel 1934-4-15 7 San Mateo head of Pescadero Creek Santa Cruz Quad., head of Pescadero Creek Comment
  UC1174505  Ceanothus papillosus LeRoy Abrams 1902-5-20 2412 San Mateo King's Mountain Comment
  UC870626  Ceanothus papillosus H. A. Lewis 1908-4-20 San Mateo near Crystal Springs Lakes; near Crystal Springs Lakes 213 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-BC52281  Ceanothus thyrsiflorus Elizabeth McClintock 1966-5-1 s.n. San Mateo unspecified Comment
  CAS-BOT-BC52285  Ceanothus thyrsiflorus C. F. B. 1902-4-12 511 San Mateo La Honda Comment
  CAS-BOT-BC52291  Ceanothus thyrsiflorus Ira L. Wiggins 1925-5-24 1744 San Mateo Along county road from Pescadero to Pebble Beach Comment
  CAS-BOT-BC52295  Ceanothus thyrsiflorus J. I. McMurphy 1906-5-8 12 San Mateo Woodside, Santa Cruz Mts. 121 Comment
  CAS-BOT-BC52302  Ceanothus thyrsiflorus Barrett Anderson; Peter Rubtzoff 1988-4-22 2667 San Mateo San Bruno Mountain. Radio Road south of Guadalupe Canyon Parkway 365 Comment
  CAS-BOT-BC52303  Ceanothus thyrsiflorus Fred Hemphill 1973-4-8 664 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  UC216272  Ceanothus thyrsiflorus W. R. Dudley 1904-12-7 San Mateo e Baker Beach (Santa Cruz Mountain Peninsula); , e of Baker Beach Comment
  SBBG4558  Ceanothus thyrsiflorus var. thyrsiflorus H. and M. Dearing 1933-5-14 978 San Mateo S of San Francisco, Skyline Drive Comment
  CAS-BOT-BC274585  Centaurea calcitrapa G. H. Mallory 1919-7-21 s.n. San Mateo Santa Cruz Mountain Peninsula. Near San Mateo Comment
  UCD130007  Centaurea calcitrapa P. B. Kennedy 1916-5-7 s.n. San Mateo vacants lots around Burlingame. Comment
  RSA176865  Centaurea melitensis John H. Thomas 1963-7-19 10199 San Mateo Ano Nuevo Island, about 0.5 mile off shore and about 20 mi. NW of Santa Cruz. Comment
  CAS-BOT-BC277125  Centaurea melitensis Walter Knight; Irja Knight 1964-5-30 606 San Mateo San Bruno Mountain. Along north side of freeway - Colma Canyon. About across from Indian Head Rock Comment
  CAS-BOT-BC277126  Centaurea melitensis Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain Comment
  RSA407369  Centaurea solstitialis Lyman Benson 1932-7-25 3954 San Mateo Menlo Park. 30 Comment
  JROH604  Centaurea solstitialis John Hunter Thomas 1977-6-16 18761 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM130628  Centaurium davyi E. B. Copeland 1903-5-24 3262 San Mateo Along Crystal Springs Lake Comment
  UCR123143  Centaurium muehlenbergii George K. Helmkamp, E. A. Helmkamp 2001-6-2 6795 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
  SJSU15418  Centaurium tenuiflorum Toni Corelli 2011-8-25 708 San Mateo Ano Nuevo State Park, Cove Beach 7 Comment
  JEPS20332  Centromadia pungens subsp. pungens Lewis S. Rose 1949-8-14 49166 San Mateo Bayshore Blvd. San Mateo 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
  JROH1692  Cerastium glomeratum John H. Thomas 1969-4-20 14897 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1697  Cerastium glomeratum John Hunter Thomas 1992-4-23 25145 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC388393  Cerastium glomeratum Margaret A. Barry 1937-5-15 89 San Mateo Coal Mine Ridge Comment
  SEINET11914803  Cercocarpus betuloides J. T. McMurphy 1906-1 18 San Mateo Los Trancos Creek, Santa Cruz Mts., Santa Cruz Peninsula Comment
  CAS-BOT-BC135474  Cercocarpus betuloides var. betuloides A. D. E. Elmer 1903-5-1 4530 San Mateo Searsville Lake Comment
  JROH3620  Cercocarpus betuloides var. betuloides John H. Thomas 1961-6-14 9541 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1948  Chamaesyce maculata John Hunter Thomas 1991-6-9 25068 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Main Gate off Sand Hill Road Comment
  UC1191353  Chenopodium berlandieri Malcolm A. Nobs and S. Galen Smith 1949-8-26 1605 San Mateo marshy stream bank about 1 mi s Pigeon Point Comment
  RSA149154  Chenopodium californicum John H. Thomas 1961-5-13 9338 San Mateo Coastal sand dunes at Franklin Point. Comment
  UC1537380  Chenopodium murale Gordon H. True Jr. 1937-10-16 848 San Mateo near Thornton Beach 3 Comment
  JROH4646  Chlorogalum pomeridianum var. pomeridianum John H. Thomas 1973-6-10 16821 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA19860  Chondrilla juncea D. Pendleton 2002-5-2 PDR 065847 San Mateo San Francisco Bay Area; Belmont Ave & El Camino Real, San Carlos. 0 Comment
  JEPS57718  Chorizanthe cuspidata var. cuspidata William S. Cooper 1925-5-28 12 San Mateo Salada Comment
  SEINET10623943 Image available Chorizanthe cuspidata var. marginata Adolph D. E. Elmer Elmer 4828 San Mateo San Pedro, California. Comment
  RSA476618  Chrysolepis chrysophylla L. H. Jones 1909-3-13 s.n. San Mateo On King's Mountain Road, Stanford University. 762 Comment
Read comments
Sep 22 2011
  SEINET13952978 Image available Chrysolepis chrysophylla Charles M. Belshaw 1936-1 1461 San Mateo Kings Mountain Road, 4.5 miles west of Woodside, South Coast Range. Comment
  CAS-BOT-BC36402  Chrysolepis chrysophylla var. minor David D. Keck 1934-7-7 2926 San Mateo Kings Mountain, just east of summit 548 Comment
  CAS-BOT-BC36403  Chrysolepis chrysophylla var. minor Oliver W. Norvell 1931-2-22 1320 San Mateo Kings Mt. Road Comment
  UC1135217  Chrysolepis chrysophylla var. minor C. M. Belshaw 1935-1-25 1469 San Mateo 2.5 mi nw Sierra Moreno Peak; Santa Cruz Quad. 457 Comment
Read comments
Oct 3 2011
  CAS-BOT-BC277896  Cirsium brevistylum L. R. Abrams; I. L. Wiggins 1939-6-3 427 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC277881  Cirsium brevistylum Paul Reeberg 1989-5-23 s.n. San Mateo San Bruno Mountains. Wax Myrtle Ravine 121 Comment
  CDA20522  Cirsium brevistylum E. Finley 2005-4-21 PDR 1365078 San Mateo San Francisco Bay Area; Bean Hollow Rd, Pescadero. 0 Comment
  RSA18503  Cirsium brevistylum C. B. Wolf 1927-7-14 617 San Mateo Summit of Kings Mt. Comment
  CAS-BOT-BC100943  Cirsium fontinale var. fontinale John Thomas Howell 1939-6-16 14746 San Mateo Crystal Springs Lake Comment
  SJSU2899  Cirsium fontinale var. fontinale G. E. Pilz 1965-7-12 114 San Mateo E side Crystal Springs Reservoir in outer S Coast Ranges 121 Comment
  SD5924  Cirsium occidentale var. occidentale Ulysses S. Grant IV 1925-6-18 San Mateo Hillsborough Comment
  CAS-BOT-BC288687  Cirsium quercetorum John Thomas Howell 1939-6-16 14746 San Mateo Crystal Springs Lake Comment
  JEPS27347  Cirsium quercetorum Rimo Bacigalupi with L. Heckard and Jim Roof 1961-4-24 7607 San Mateo meadow at summit of divide between Colma Canyon and Guadulupe Valley (just n of San Bruno Mt.); Colma Canyon, Guadalupe Valley, San Bruno Mt. 205 Comment
  UC175180  Cirsium quercetorum W. N. Suksdorf 1913-6-28 114 San Mateo San Bruno San Francisco Area, San Bruno Comment
  UC306688  Cirsium quercetorum A. D. E. Elmer 1903-6-1 4290 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC280518  Cirsium quercetorum John Thomas Howell 1939-6-16 14740 San Mateo Near San Andreas Lake Comment
  JROH635  Cirsium vulgare John H. Thomas 1970-7-5 15670 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC285866  Cirsium vulgare Ned Cahill 1974-10-8 380 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  SBBG14780  Cirsium vulgare P. H. Raven 1961-8-24 16585 San Mateo E side of Crystal Springs Lakes Comment
  SD30683  Cirsium vulgare Edith A. Purer 1933-8-13 5406 San Mateo Santa Clara Valley, near Baden Station. Comment
  UC2049888  Clarkia amoena subsp. amoena H. W. Johansen 1958-6-21 135 San Mateo Alpine road. Comment
  CAS-BOT-BC160925  Clarkia amoena subsp. amoena David D. Keck 1934-7-7 2937 San Mateo South of the mouth of Tunitas Creek, on slopes overlooking the ocean Comment
  RSA130900  Clarkia amoena subsp. amoena E. K. Balls 1958-7-19 23570 San Mateo State Highway 5, 2 miles NW of junction with road from Big Basin State Park 671 Comment
  CAS-BOT-BC163922  Clarkia purpurea subsp. quadrivulnera A. A. Heller 1906-6-8 8382 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks Comment
  CAS-BOT-BC163969  Clarkia purpurea subsp. quadrivulnera H. A. Dutton 1900-4-17 s.n. San Mateo Woodside Serpentine. Along middle of S. side Comment
  JROH3009  Clarkia purpurea subsp. viminea John H. Thomas 1967-5-31 12935 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176537  Clarkia purpurea subsp. viminea John H. Thomas 1963-6-23 10164 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto Comment
  SEINET12189254  Clarkia quadrivulnera Unknown 1932-1 9166 San Mateo Los Trenios Woods Comment
  CAS-BOT-BC165179  Clarkia rubicunda L. R. Abrams 1907-8-26 s.n. San Mateo Kings Mt. Comment
  JEPS17914  Clarkia rubicunda Rimo Bacigalupi 1955-8-4 5445 San Mateo just s Pedro Point (high above the ocean, w end of mountain); Montara Mtn. Comment
  JROH3019  Clarkia rubicunda John H. Thomas 1974-6-30 17457 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3029  Clarkia rubicunda John Hunter Thomas 1982-7-8 21080 San Mateo Jasper Ridge Biological Preserve, Stanford University; west end of dam Comment
  JROH3035  Clarkia rubicunda John Hunter Thomas 1987-5-19 24296 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC165126  Clarkia rubicunda L. R. Abrams 1907-8-25 s.n. San Mateo Between [Pecadero] Pescadero and Half Moon Bay Comment
  CAS-BOT-BC165136  Clarkia rubicunda Peter H. Raven 1957-6-20 10955 San Mateo Above south-east end of Lake San Andreas Comment
  RSA113594  Clarkia rubicunda Peter H. Raven 1957-7-4 11046 San Mateo Near San Gregorio Creek, 6.1 miles from San Gregorio on road to La Honda Comment
  UC1094013  Clarkia rubicunda Lewis S. Rose 1957-7-6 57115 San Mateo w San Mateo (Skyline Blvd.) 182 Comment
  CAS-BOT-BC165605  Clarkia unguiculata Kent E. Holsinger 1979-5-16 10 b San Mateo Jasper Ridge Biological Preserve; 5 mi. SW of Stanford Univ. campus, on south facing slope of Searsville Lake 109 Comment
  CAS-BOT-BC439288  Claytonia exigua subsp. exigua George Oberlander 1950-2-1 445 San Mateo San Francisco Watershed Reserve. Near south boundary Comment
  CAS-BOT-BC439593  Claytonia parviflora subsp. parviflora H. A. Dutton 1900-2-11 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  JROH3338  Claytonia parviflora subsp. parviflora John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA117677  Claytonia perfoliata S. S. Tillett 1956-6-25 552 San Mateo Redwood, on Skyline Drive. 655 Comment
  UCD100726  Claytonia perfoliata E. Jacqueline Garcia 1986-4-19 s.n. San Mateo San Bruno Mountains, 0.25 mile from Summit Loop trailhead on Guadeloupe Canyon Road. Comment
  CAS-BOT-BC439992  Claytonia perfoliata subsp. mexicana John H. Thomas 1964-4-30 10363 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  JROH3344  Claytonia perfoliata subsp. perfoliata John H. Thomas 1963-5-15 10088 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3404  Clematis lasiantha John H. Thomas 1956-4-7 5628 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3414  Clematis lasiantha John H. Thomas 1977-4-8 18524 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5686  Clematis lasiantha John Rawlings 2015-3-3 1310 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 9. 194 Comment
  SEINET12099156  Clematis ligusticifolia Unknown 1931-1 7796 San Mateo Jaspan Ridge, common Comment
Read comments
May 3 2019
  JROH2878  Clinopodium douglasii John Hunter Thomas 1977-6-16 18742 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC499374  Clintonia andrewsiana Carl B. Wolf 1929-5-25 3736 San Mateo 2 mi. from Pescadero on Alpine Creek Comment
  CAS-BOT-BC499403  Clintonia andrewsiana Anna F. Rodda 1932-5-2 s.n. San Mateo Laguna Honda Comment
  SEINET12044199  Clintonia andrewsiana L. S. Rose 1931-1 s.n. San Mateo La Honda Comment
  SEINET12046246  Clintonia andrewsiana W. R. Dudley 1893-1 s.n. San Mateo Santa Cruz Penninsula, between Woodside and Summit Springs 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-BC240937  Collinsia multicolor Miss E. Cannon 1891-1-1 s.n. San Mateo S.S.F. 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
  CAS-BOT-BC240930  Collinsia multicolor W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula. Pilar Pt. south slope by grade near summit of Montara Mts. Comment
  JROH4020  Collinsia sparsiflora var. collina Kent E. Holsinger 1981-4-15 342 San Mateo Jasper Ridge Biological Preserve, Stanford University; at the junction of the road to the green shack and the trail up from San Francisquito Creek 160 Comment
  JROH4021  Collinsia sparsiflora var. collina John Hunter Thomas 1983-4-14 21402 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC138687  Collinsia sparsiflora var. collina C. F. Baker 1902-4-4 444 San Mateo Crystal Springs Lake Comment
  JROH3139  Collomia heterophylla John H. Thomas 1961-5-5 9217 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below Searsville Dam 76 Comment
  POM279765  Collomia heterophylla Lyman Benson 1931-5-10 2798 San Mateo Kings Mountain 457 Comment
  RSA681681  Comarostaphylis diversifolia subsp. diversifolia Annuschka Deb 1989-8-18 379 San Mateo Woodside. Comment
  POM132599  Conioselinum gmelinii A. D. E. Elmer 1900-04 2289 San Mateo San Bruno Mountain Comment
  CAS-BOT-BC286204  Conyza canadensis Peter Rubtzoff; Patricia Fallon 1987-8-26 9845 San Mateo San Bruno Mountains. Main part of Saddle area Comment
  CDA7456  Conyza sumatrensis J. T. Howell 1975-9-25 51508 San Mateo San Bruno Mountain. Comment
  UCD77568  Corallorhiza maculata Robert E. Preston 2001-5-30 1534 San Mateo Ca. 9 mi nnw of Boulder Creek. 365 Comment
  JROH4763  Corallorhiza striata J. I. McMurphy 1906-5-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5743  Corallorhiza striata L. Nordby 1982-5-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. 2 km east of redwood stands Comment
  RSA40318  Cordylanthus pilosus subsp. pilosus L. S. Rose 1941-8-9 41362 San Mateo Woodside. 549 Comment
  JROH5812  Cordylanthus rigidus subsp. rigidus A. Lambrecht, R. Reynolds, A. Cummings 2016-8-23 50 San Mateo Trail 9 near upper WiFi station 199 Comment
  UC31243  Corethrogyne filaginifolia Alice Eastwood 1896-5-1 San Mateo Crystal Springs Comment
  POM57992  Corethrogyne filaginifolia var. californica C. F. Baker 1902-5-10 810 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC209817  Cornus glabrata C. B. Wolf 1931-8-20 2329 San Mateo 3 miles west of Mayfield on road to La Honda 91 Comment
  RSA726759  Cornus glabrata Lyman Benson 1930-5-26 2133 San Mateo Stanford University, Lake Searsville 152 Comment
  CAS-BOT-BC210353  Cornus sericea W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Peninsula. San Mateo Creek Comment
  CAS-BOT-BC210362  Cornus sericea James McMurphy 1902-5-11 s.n. San Mateo San Francisquito Creek below Stock Farm Comment
  JROH1878  Cornus sericea subsp. sericea John Hunter Thomas 1987-5-26 24311 San Mateo Jasper Ridge Biological Preserve, Stanford University; along causeway Comment
  JROH1883  Cornus sericea subsp. sericea John Hunter Thomas 1991-8-4 25080 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-BC180370  Corylus cornuta subsp. californica Ira L. Wiggins 1925-4-1 1649 San Mateo On Kings Mountain Road 3/4 of a mile above Woodside Comment
  RSA101050  Corylus cornuta var. californica G. Oberlander 1950-2-1 415 San Mateo Sawyer Ridge, San Francisco Watershed Reserve. Comment
  RSA152233  Corylus cornuta var. californica I. L. Wiggins 1925-04 1649 San Mateo On Kings Mtn Road three fourths of a mile above Woodside. Comment
  JROH3638  Cotoneaster pannosus John Hunter Thomas 1980-4-24 19896 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3644  Cotoneaster pannosus John Hunter Thomas 1983-6-2 22329 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1119278  Cotula coronopifolia H. S. Yates 1935-5-8 5223 San Mateo 1 mi n Bolsa Pt.; Santa Cruz Quad. Comment
  CAS-BOT-BC291463  Cotula coronopifolia Catherine A. Toschi 1963-2-23 63 :33 San Mateo North slope San Bruno Mountains above Crocker Avenue 152 Comment
  CAS-BOT-BC291471  Cotula coronopifolia Margaret A. Barry 1938-5-14 254 San Mateo In Mud Lake on Coal Mine Ridge Comment
  SJSU2294  Cotula coronopifolia C. W. Sharsmith 1950-4-16 6623 San Mateo near Pescadero Point Comment
  UCD101808  Crassula aquatica W. R. Dudley 1910-5-26 s.n. San Mateo Coal Mine Ridge, near Block Mountain; Santa Cruz Mountain Peninsula. Comment
  CAS-BOT-BC427608  Crassula aquatica Peter Rubtzoff 1965-10-19 5663 San Mateo Margin of Pilarcitos Lake Comment
  OBI20232  Crassula aquatica Rimo Bacigalupi, G. T. Robbins 1954-6-18 4561 San Mateo At Point Ano Nuevo Comment
  JROH1887  Crassula connata John H. Thomas 1973-3-12 16482 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC427836  Crassula connata Elizabeth McClintock 1965-4-11 s.n. San Mateo San Bruno Mountain. Near Guadalupe Road in Crocker Hills. Comment
  CAS-BOT-BC344932  Crataegus monogyna Peter Rubtzoff; Roman Gankin 1975-5-21 7977 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  JROH665  Crepis vesicaria subsp. taraxacifolia John H. Thomas 1962-6-10 9910 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge Comment
  UC19183  Crocanthemum scoparium var. scoparium J. Burtt Davy Jun 21 1893-Jun 23 1893 1157 San Mateo Pilarcitos Lake and Canyon Comment
  UC1219869  Crocosmia X crocosmiiflora John H. Thomas 1961-8-27 9700 San Mateo w end San Bruno Mountain (n San Mateo County) 243 Comment
  JROH1955  Croton setiger John H. Thomas 1959-8-22 8076 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4981  Crypsis schoenoides John Hunter Thomas 1980-11-27 20193 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta Comment
  JROH4999  Crypsis vaginiflora John H. Thomas 1976-10-16 18405 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry delta in Searsville Lake at the mouth of Corte de Madera Creek Comment
  JROH5593  Cryptantha micromeres John Rawlings 2013-4-19 1179 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Trail 11 in chaparral. 144 Comment
  RSA44329  Cupressus abramsiana Harry A. Dutton 1949-9-12 s.n. San Mateo Common corners of Sec. 11 & 12 and 13 &14, Range 4 West, North bank of North Fork of Butano Creek Comment
  RSA704404  Cupressus abramsiana subsp. butanoensis John Silba 2004-12-28 B- 424 San Mateo CA., San Mateo County., Pescadero County Park, on Botano Ridge, ca. 5-5.5 miles East of Dearborn Park Road, 375 Comment
  RSA735619  Cupressus abramsiana subsp. butanoensis John Silba 2004-12-28 B- 421 San Mateo Pescadero County Park, on Butano Ridge, ca. 5 miles east of Dearborn Park Road. 427 Comment
  JROH1862  Cuscuta occidentalis John Rawlings 2011-11-15 1095 C San Mateo Jasper Ridge Biological Preserve, Stanford University. Boat launch below Searsville Lab. 104 Comment
  RSA51358  Cuscuta salina L. S. Rose 1949-8-24 49167 San Mateo South San Francisco Comment
  SEINET12278070  Cuscuta salina E. A. Purer 1933-1 5408 San Mateo Near Baden Station Comment
  CDA39984  Cuscuta subinclusa W. Davis 1959-8-2 s.n. San Mateo Redwood City. 0 Comment
  HSC23885  Cuscuta subinclusa Mary Katherine Wicksten 1971-7-2 152 San Mateo Huddart Park, Kings Mtn. Rd. above Miwok Area Comment
  UCD163787  Cyclospermum leptophyllum Peter Rubtzoff 1988-6-25 9927 San Mateo Menlo Park, on Willow Road near Alma Street. Comment
  CAS-BOT-BC287328  Cynara cardunculus J. H. Thomas 1958-10-21 7487 San Mateo Near intersection of Bayshore Highway and Main St, Redwood City, near slough Comment
  CAS-BOT-BC287332  Cynara cardunculus J. H. Thomas 1958-10-21 7487 San Mateo Near intersection of Bayshore Highway and Main St, Redwood City, near slough Comment
  JROH5003  Cynodon dactylon John H. Thomas 1973-6-10 16819 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5007  Cynodon dactylon John Hunter Thomas 1988-6-6 24512 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA195569  Cynodon dactylon John H. Thomas 1966-4-24 11581 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JROH1392  Cynoglossum grande John H. Thomas 1967-5-31 12941 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1393  Cynoglossum grande John Hunter Thomas 1981-4-5 20277 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek Comment
  JROH4385  Cyperus eragrostis W. Lennihan 1989-5-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek Comment
  UCD18539  Cyperus eragrostis Roman Gankin 1950-7-4 7 San Mateo east side of the Peninsula Coast Range, off of the King's Mtn. Rd. behind Woodside. 609 Comment
  CAS-BOT-BC67972  Cystopteris fragilis Roxana S. Ferris 1921-3-20 2108 a San Mateo 6 mi. from Pescadero Comment
  CAS-BOT-BC198191  Cytisus scoparius George Oberlander 1950-4-23 878 San Mateo San Andreas Valley, San Francisco Watershed Reserve Comment
  JEPS64797  Cytisus scoparius W. L. Jepson 1922-3-19 9534 San Mateo Millbrae 182 Comment
  JROH5017  Dactylis glomerata John Hunter Thomas 1977-6-16 18753 San Mateo Jasper Ridge Biological Preserve, Stanford University. Weedy area near old racing oval Comment
  JROH5027  Dactylis glomerata John Hunter Thomas 1987-5-26 24319 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC192233  Danthonia californica L. R. A. 1902-5-11 2451 San Mateo Crystal Springs Comment
  JROH5034  Danthonia californica Herbert Dengler unspecified s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. In grassland about 200' N.E of serp. Comment
  UCD37963  Danthonia californica Beecher Crampton 1962-6-11 6503 San Mateo San Mateo County, Sharp park suburb of pacifica, Moris' Point Road, west of State Highway 1. Comment
  POM265226  Danthonia californica var. americana I. L. Wiggins 1929-5-10 3673 San Mateo Coastal bluff at Pigeon Point Comment
  JROH1903  Datisca glomerata John H. Thomas 1961-6-14 9543 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH1907  Datisca glomerata John Hunter Thomas 1991-11-21 25104 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing of San Francisquito Creek Comment
  UC872608  Datisca glomerata Roxana Stinchfield 1915-10-14 257 San Mateo San Francisquito Creek; Santa Cruz Mountain Peninsula, San Francisquito Creek Comment
  OBI48631  Deinandra corymbosa Lewis S. Rose 1937-8-29 37644 San Mateo Moss Beach 15 Comment
  UC702538  Deinandra corymbosa L. S. Rose 1941-8-9 41361 San Mateo Moss Beach, open sandy coastal fields Moss Beach 16 Comment
  CAS-BOT-BC299202  Deinandra corymbosa subsp. corymbosa James I. McMurphy 1907-8-6 s.n. San Mateo Between Woodside and Crystal Springs Comment
  CAS-BOT-BC299211  Deinandra corymbosa subsp. corymbosa Lewis S. Rose 1931-8-28 s.n. San Mateo Moss Beach Comment
  JROH3424  Delphinium californicum subsp. californicum Lyman Benson 1930-5-12 2127 San Mateo Jasper Ridge Biological Preserve, Stanford University 152 Comment
  JROH3433  Delphinium californicum subsp. californicum John H. Thomas 1973-6-10 16811 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5546959  Delphinium decorum H. S. Gentry 1931-1 80 San Mateo Collected 1 mile SE of Holy Cross Cemetery. Comment
  UC854136  Delphinium hesperium Alice Eastwood 1912-6-10 320 San Mateo Crystal Springs Comment
  UCSB11751  Delphinium hesperium Olson, Jim 1962-4-17 San Mateo 10 miles southeast of Halfmoon Bay; on Canada Road 45 Comment
  CAS-BOT-BC9872  Delphinium nudicaule David Daniels Keck 1934-7-7 2928 San Mateo Kings Mountain, west of summit. 609 Comment
  SD37308  Delphinium nudicaule Edith A. Purer 1933-5-24 3617 San Mateo Alpine Road Comment
  SEINET12086765  Delphinium nudicaule L. S. Rose 1931-1 s.n. San Mateo Kings Mt 914 Comment
  CAS-BOT-BC116328  Delphinium parryi subsp. parryi W. R. Dudley 1894-7-7 S. N. San Mateo Under trees, head of Corte Madera. 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
  JROH3459  Delphinium patens subsp. patens John Hunter Thomas 1985-4-11 23521 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grassy area below and to the east of Searsville Dam Comment
  JROH5730  Delphinium patens subsp. patens John Rawlings 2013-4-11 1199 San Mateo Jasper Ridge Biological Preserve, Stanford University. Northwest side of small drainage upstream from the upper bridge on Trail 11. 134 Comment
  CAS-BOT-BC7933  Delphinium variegatum George Thomas Oberlander 1950-5-28 985 San Mateo near Lower Crystal Springs Lake Comment
  CAS-BOT-BC7936  Delphinium variegatum Cynthia Steele 1948-4-18 26 San Mateo Redwood City Comment
  SEINET12099656  Delphinium variegatum M. T. Doutt 1931-1 s.n. San Mateo Skyline Blvd, W of Hillbrae Comment
  JROH3463  Delphinium variegatum subsp. variegatum John H. Thomas 1955-5-6 4977 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent grassy slopes Comment
  JROH3467  Delphinium variegatum subsp. variegatum John Hunter Thomas 1980-5-6 19926 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC628  Dendromecon rigida subsp. rigida Daniel Cohen 1953-5-9 83 San Mateo Near Skylind Drive on La Honda Road. Comment
  UCD164702  Deschampsia cespitosa subsp. holciformis Peter Rubtzoff 1976-6-13 8639 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH5048  Deschampsia danthonioides John H. Thomas 1975-5-26 17917 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA28787  Deschampsia elongata D. G. Kelch 2009-6-9 9 .394 San Mateo Santa Cruz Mtns.; King s Mtn. Rd. N of Summit Springs. Comment
  JROH5070  Deschampsia elongata John Hunter Thomas 1985-5-22 23670 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5071  Deschampsia elongata John Hunter Thomas 1987-5-15 24285 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along road from low flow crossing to the west side of the dam. Comment
  SJSU112  Dicentra formosa T. Rogers 1929-5-30 San Mateo Kings Mt Comment
  UC9936  Dicentra formosa J. Burtt Davy 1895-4-21 1060 San Mateo Pilarcitos Creek Comment
  CAS-BOT-BC500927  Dichelostemma capitatum Ned Cahill 1974-4-18 128 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC500930  Dichelostemma capitatum Kim Marcus; David Schooly; Elizabeth McClintock 1975-4-13 s.n. San Mateo Above Hillside Blvd., South San Francisco Comment
  UCD148239  Dichelostemma capitatum subsp. capitatum Robert E. Preston 2013-3-28 2900 San Mateo Hillsborough, along Crystal Springs Rd where it crosses under the Junipero Serra Freeway. 99 Comment
  SEINET12044675  Dichelostemma congestum G. C. Kimber, Roush, L. 1920-1 s.n. San Mateo Coal Mine Ridge Comment
  UC634883  Dichondra donelliana H. L. Mason 1928-2-22 4156 San Mateo San Bruno Mountains Comment
  CAS-BOT-BC150445  Diplacus aurantiacus Saichi Kawahara 1968-7-29 465 San Mateo Old Stage Road, south bank of Pomponio Creek 36 Comment
  CAS-BOT-BC150446  Diplacus aurantiacus Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo Base of Quarry 2 Comment
  CAS-BOT-BC150459  Diplacus aurantiacus Robert Robertson 1954-5-1 108 San Mateo 2 miles E. of Pescadero 30 Comment
  CAS-BOT-BC150464  Diplacus aurantiacus Carl B. Wolf 1930-11-5 1804 San Mateo Half way up east side of La Honda Grade, Santa Cruz Mtns. 304 Comment
  CDA19177  Diplotaxis tenuifolia D. Pendleton 2001-5-31 PDR 064471 San Mateo San Francisco Bay Peninsula; Burlingame. 0 Comment
  JROH4199  Dirca occidentalis John H. Thomas 1960-5-1 8537 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
  POM274504  Dirca occidentalis Lyman D. Benson 1929-3-2 992 San Mateo East of Lake Searsville Comment
  RSA15268  Dirca occidentalis Carl B. Wolf 1927-3-2 s.n. San Mateo Above Searsville Lake Comment
  RSA169345  Dirca occidentalis L. S. Rose 1964-3-9 s.n. San Mateo North end of Crystal Springs Lake 122 Comment
  SBBG33466  Dirca occidentalis A. D. E. Elmer -Mar-1903 4123 San Mateo Alpine Road Comment
  UC860256  Disporum hookeri Lewis S. Rose 1939-5-5 39095 San Mateo San Mateo Canyon 45 Comment
  JEPS61835  Disporum smithii Lucille Roush 1928-3-11 San Mateo Butano Creek 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
  UC38050  Distichlis spicata J. Burtt Davy 1893-6-17 San Mateo Belmont Comment
  UCD64392  Distichlis spicata var. stolonifera A. A. Beetle 1942-10-1 1890 San Mateo Near San Mateo, borders of San Francisco Bay. Comment
  JROH3377  Dodecatheon clevelandii subsp. patulum Duncan M. Porter 1961-2-5 738 San Mateo Jasper Ridge Biological Preserve, Stanford University. In middle of corral at lower end of large meadow on crest of ridge Comment
  JEPS9518  Dodecatheon clevelandii subsp. patulum W. L. Jepson 1922-3-19 9556 San Mateo back Hillsboro (Buriburi Ridge); Buriburi Ridge 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-BC159533  Drymocallis glandulosa var. glandulosa Ethel Crum 1930-4-27 707 San Mateo Woodside 152 Comment
  CAS-BOT-BC159545  Drymocallis glandulosa var. glandulosa Ira L. Wiggins 1925-4-1 1662 San Mateo On Kings Mountain Road three fourths of a mile above Woodside in the old cut over redwood belt. Comment
  CAS-BOT-BC159546  Drymocallis glandulosa var. glandulosa John H. Thomas 1965-4-29 10600 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  RSA152268  Drymocallis glandulosa var. wrangelliana John H. Thomas 1961-5-7 9300 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  UC903192  Drymocallis glandulosa var. wrangelliana Ethel Crum 1930-4-27 707 San Mateo Woodside 152 Comment
  RSA152261  Drymocallis glandulosa var. wrangelliana I. L. Wiggins 1925-04 1662 San Mateo On Kings Mtn Road three fourths of a mile above Woodside. Comment
  CHSC39802  Dryopteris arguta Maxey-Jones 1928-5-21 San Mateo In La Honda Redwoods. Comment
Read comments
Jul 7 2010
  JROH39  Dryopteris arguta John Hunter Thomas 1981-2-14 20219 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  RSA693756  Dryopteris arguta Anonymous 1924-7-4 s.n. San Mateo Near St. Helena, Woods beyond WHite Sulphur Springs Comment
  CAS-BOT-BC410869  Dudleya caespitosa Reid Moran 1951-7-3 3499 San Mateo Devils Slide, 2 miles north of Montara Comment
  CAS-BOT-BC109694  Dudleya farinosa Ira L. Wiggins 1929-7-14 3805 San Mateo Bluffs above Pescadero sand Beach. Comment
  CAS-BOT-BC428359  Dudleya farinosa John H. Thomas 1963-7-19 10197 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  JROH5937  Dysphania multifida John H. Thomas 1988-11-17 24595 San Mateo Jasper Ridge Biological Preserve, Stanford University; growing on delta in Searsville Lake Comment
  JROH5096  Echinochloa crus-galli John Hunter Thomas 1991-11-21 25099 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing of San Francisquito Creek, in pavement. Comment
  CDA5626  Echium pininana T. C. Fuller 1967-6-13 15943 San Mateo North side of road to Crystal Springs, 1.2 miles east of Highway 1 at Half Moon Bay. 0 Comment
  UCD61216  Ehrharta erecta Glen L. Holstein 1978-3-1 s. n. San Mateo Near Pescadero Point. Comment
  RSA176541  Elymus X gouldii John H. Thomas 1963-6-23 10159 San Mateo Along Alpine Road near Ladera Comment
  POM352566  Elymus californicus P. H. Raven 1967-6-25 21418 San Mateo Pescadero Road 2.8 miles SW of Alpine Road. Comment
  UCD37959  Elymus glaucus Beecher Crampton 1962-6-11 6497 San Mateo San Mateo County, northern city limits of Pacifica, along State Highway 1, just southwest of its junction with Skyline Boulevard. Comment
  UCD61811  Elymus glaucus Beecher Crampton 1962-6-11 6497 San Mateo N. city limits of Pacfica; along State Hwy. 1 just southwest of its junction with Skyline Blvd. Comment
  CAS-BOT-BC203690  Elymus glaucus subsp. glaucus Margaret A. Barry 1937-6-22 178 San Mateo Coal Mine Ridge Comment
  JROH5963  Elymus glaucus subsp. glaucus John Rawlings 2017-5-24 2083 San Mateo Jasper Ridge Biological Preserve, Stanford University. SE corner of Sun Field Station along paved vehicle road to Sun Field Station loading zone 118 Comment
  JROH5114  Elymus glaucus subsp. virescens John Rawlings 2009-9-16 1017 San Mateo Jasper Ridge Biological Preserve, Stanford University. A few yards uphill of Trail a, about 35 yards from the lower Trail a terminus, near a large rock outcrop at the serpentine contact. 91 Comment
  SJSU15227  Elymus glaucus subsp. virescens Toni Corelli 2012-7-12 803 San Mateo Wavecrest, west of Highway 1 in Half Moon Bay 24 Comment
  CDA31732  Elymus multisetus I. J. Campbell 1960-4-14 4475 San Mateo Skyline Blvd., 1 mile SE of Alpine Rd. junction. 0 Comment
  CAS-BOT-BC210135  Elymus repens Peter Rubtzoff 1977-6-21 9055 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
  RSA790261  Elymus repens Peter Rubtzoff 1977-6-21 9055 San Mateo San Bruno Mtn: 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Westernmost part of the area on slope across fence. Comment
  SJSU15315  Elymus trachycaulus subsp. trachycaulus John Rawlings 2014-5-28 1243 San Mateo In the vicinity of the Edgewood Preserve's West Kiosk (intersection of Edgewood and Serpentine Loop trails). 184 Comment
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Feb 18 2015
  RSA185792  Epilobium brachycarpum John H. Thomas 1966-9-13 12392 San Mateo Pacifica. San Pedro Valley, near St. Peter s Catholic Church near Oostad Blvd. along Linda Mar Blvd. Comment
  CAS-BOT-BC166518  Epilobium canum subsp. canum James McMurphy 1906-8-24 s.n. San Mateo Los Trancos Creek Comment
  SJSU802  Epilobium canum subsp. canum M. B. Mirassou 1943-5-10 191 San Mateo near Pigeon Point Comment
  UC1122298  Epilobium canum subsp. canum G. E. Sindel 1935-8-19 335 San Mateo 1 mi sw Langley Hill; Santa Cruz Quadrangle Comment
  UC124424  Epilobium canum subsp. canum C. F. Baker 1902-10-20 52 San Mateo summit of Coast Range Comment
  JROH3054  Epilobium ciliatum subsp. ciliatum John Hunter Thomas 1981-7-12 20689 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat dock Comment
  UCD105792  Epilobium ciliatum subsp. watsonii Malcolm A. Nobs; S. Galen Smith 1949-8-25 1548 San Mateo Sharp Park. Comment
  RSA176752  Epilobium minutum John H. Thomas 1963-5-15 10092 San Mateo Jasper Ridge Biological Experimental Area. 5 miles SW of Palo Alto Comment
  CAS-BOT-BC384620  Equisetum J. Lovelle 1973-8-5 s.n. San Mateo Pomponio Canyon Comment
  UCD135303  Equisetum arvense J. D. Skoss 1948-7-25 49 San Mateo San Vicente Canyon near Montara. Comment
  JEPS79607  Equisetum hyemale subsp. affine Edward Lee 1978-8-19 San Mateo between Lake Pilarcitos and San Andreas Comment
  JROH74  Equisetum telmateia subsp. braunii Toni Corelli 2010-3-29 361 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 13, south side of Leonard's Bridge 106 Comment
  CAS-BOT-BC384629  Equisetum telmateia subsp. braunii R. D. Hennessey 1964-4-26 69 San Mateo Area in which Pilarcitos Creek empties into the ocean Comment
  CHSC90173  Equisetum telmateia var. braunii Diane Mastalir 1988-3-27 4 San Mateo Near drainage ditch, 6.7 mi south of junction of Hwy 1 and Hwy 92, 1.7 mi east of Pescadero Road. 30 Comment
  JROH5140  Eragrostis pectinacea var. pectinacea John H. Thomas 1974-10-29 17646 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  JROH5141  Eragrostis pectinacea var. pectinacea John H. Thomas 1974-10-29 17646 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  CAS-BOT-BC299889  Erechtites glomeratus L. R. Abrams 1926-5-26 11218 San Mateo San Bruno Hills near Daly City Comment
  CDA4546  Erechtites glomeratus I. J. Campbell 1958-4-18 322 -58 San Mateo 0 Comment
  RSA128463  Erechtites glomeratus Peter H. Raven 1950-6-3 2219 San Mateo Weed along Millbrae Ave, Millbrae. 61 Comment
  CAS-BOT-BC286883  Ericameria ericoides Elizabeth McClintock 1966-9-29 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon Comment
  POM359361  Ericameria ericoides var. ericoides E. A. Purer 1933-8-25 5511 San Mateo Along Skyline Drive Comment
  CHSC25996  Ericameria parishii James Henrickson 1969-10-19 4189 San Mateo 6 mi. NNW of Descanso on Boulder Creek Rd. Comment
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Dec 11 2013
  CAS-BOT-BC300614  Erigeron foliosus var. franciscensis Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo San Bruno Mountain. In old quarry in Colma Canyon Comment
  CAS-BOT-BC295080  Erigeron glaucus Adele Lewis Grant 1917-5-6 935 San Mateo Pebble Beach nr. Pescadero Comment
  CAS-BOT-BC295087  Erigeron glaucus Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo San Bruno Mountain. Power Line Ridge Comment
  CAS-BOT-BC216127  Eriodictyon californicum A. D. E. Elmer 1903-4-1 4801 San Mateo Lake San Andreas Comment
  CAS-BOT-BC216130  Eriodictyon californicum Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo Buckeye Canyon, San Bruno Mountain Comment
  CAS-BOT-BC216247  Eriodictyon californicum Lewis S. Rose 1941-7-2 41288 San Mateo King's Mountain 480 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
  HSC13523  Eriodictyon californicum J. Wendell Howe 1930-5-21 San Mateo Alpine Creek Comment
  JROH2720  Eriodictyon californicum Richard L. Garber 1971-5-11 14 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2721  Eriodictyon californicum John H. Thomas 1971-5-30 15969 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
  CAS-BOT-BC251996  Eriogonum latifolium A. D. E. Elmer 1903-7-1 4557 San Mateo Half Moon Bay Comment
  POM145464  Eriogonum latifolium J. B. Feudge 1923-8-19 97 San Mateo Ano Nuevo Point 6 Comment
  UC176458  Eriogonum latifolium Katharine Brandegee 1913-8-11 San Mateo Tobin Comment
  UCR240612  Eriogonum latifolium T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3524 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
  CAS-BOT-BC251969  Eriogonum latifolium Elizabeth McClintock; Paul Reeberg 1988-4-26 s.n. San Mateo at southern tip of ridge dividing Sage and Poison Oak Ravines 137 Comment
  CAS-BOT-BC251981  Eriogonum latifolium Elsie M. Zeile 1921-7-30 s.n. San Mateo Salada Beach (slopes nr. road) Comment
  CAS-BOT-BC266071  Eriogonum luteolum A. G. Vestal 1937-7-18 s.n. San Mateo Jasper Ridge, side of ridge not far from Stanford property line Comment
  JROH3232  Eriogonum luteolum var. luteolum John H. Thomas 1972-8-18 16146 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA423118  Eriogonum luteolum var. luteolum E. A. Purer 1933-8-25 s.n. San Mateo Skyline Blvd, on hillside near Schullser tablet Comment
  CAS-BOT-BC269000  Eriogonum nudum var. auriculatum Javier Penalosa 1963-3-30 2717 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF 91 Comment
  JROH3240  Eriogonum nudum var. auriculatum J. H. Thomas 1962-11-4 10013 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Westridge end. Comment
  JROH3241  Eriogonum nudum var. auriculatum John Hunter Thomas 1980-11-18 20170 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just up from lake Comment
  CAS-BOT-BC269007  Eriogonum nudum var. auriculatum L. S. Rose 1927-5-24 s.n. San Mateo San Mateo Comment
  RSA766372  Eriogonum nudum var. auriculatum Delzie Demaree 1933-7-8 10423 San Mateo Spring Valley Road Comment
  SBBG32434  Eriogonum vimineum L. S. Rose 1964-9-9 64073 San Mateo Emerald Lake, W of Redwood City 243 Comment
  SD5712  Eriophyllum Ulysses S. Grant IV 1925-6-5 San Mateo Burlingame Comment
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Jul 10 2010
  CAS-BOT-BC304073  Eriophyllum confertiflorum Fred Hemphill 1973-4-22 769 San Mateo San Carlos. N of Malabar Rd and Melendry Dr 207 Comment
  JROH697  Eriophyllum confertiflorum var. confertiflorum John H. Thomas 1967-5-31 12942 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH707  Eriophyllum confertiflorum var. confertiflorum John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM53930  Eriophyllum lanatum var. arachnoideum C. F. Baker 1902-5-10 797 San Mateo Kings Mountain. Comment
  RSA116761  Eriophyllum lanatum var. arachnoideum W. R. Dudley 1893-5-27 s.n. San Mateo Foot of Summit Springs Road, near Woodside. Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC301265  Eriophyllum lanatum var. arachnoideum W. R. Dudley 1906-6-12 s.n. San Mateo Santa Cruz Mountain Peninsula. W. Union Gulch, back of winery Comment
  UC1080175  Eriophyllum latilobum Sherwin Carlquist 1952-4-26 305 San Mateo 1 mi w on San Mateo-Half Moon Bay Road San Mateo Comment
  CAS-BOT-BC301980  Eriophyllum staechadifolium Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  POM204323  Eriophyllum staechadifolium I. L. Wiggins 1929-7-4 3793 San Mateo Pescadero Beach Comment
  RSA134232  Eriophyllum staechadifolium John H. Thomas 1949-10-16 1151 San Mateo Along sandstone bluffs, just north of outlet of San Gregorio Creek Comment
  SEINET3146689  Eriophyllum staechadifolium L. S. Rose 1938-8-18 38233 San Mateo Skyline Blvd., 3 mi. S of San Francisco Co. line 61 Comment
  UC1118210  Eriophyllum staechadifolium T. Tyrrell 1928-9-26 7 San Mateo 2 mi s San Gregorio; Santa Cruz Quad. 182 Comment
  SEINET11850785  Eriophyllum staechadifolium var. artemisiaefolium E. H. Graham 1931-1 6930 San Mateo Ano Nuevo Pt., S of San Francisco Comment
  JROH2594  Erodium botrys John H. Thomas 1969-4-12 14888 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  RSA391777  Erodium botrys D. D. Keck 1932-4-18 1432 San Mateo Mills Field Airport, San Francisco Bay. 2 Comment
  JEPS121446  Erodium cicutarium Adam C. Schneider with C. Matt Guilliams 2013-2-2 14 San Mateo Crystal Springs Reservoir Comment
  JROH2606  Erodium cicutarium John H. Thomas 1977-5-14 18612 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU2305  Eryngium armatum C. W. Sharsmith 1950-4-16 6634 San Mateo near Pescadero Point near Pescadero Comment
  JROH235  Eryngium jepsonii A. G. Vestal 1926-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; summit of Jasper Ridge Comment
  CAS-BOT-BC54836  Erysimum franciscanum G. B. Rossbach 1955-3-26 573 San Mateo Inner dunes back of sea bluff ca. 1 mile north of Sharp Park (Salada). Comment
  CAS-BOT-BC54842  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1938-4-3 806 San Mateo Crests and steep upper slopes of the San Bruno Hills. 365 Comment
  CAS-BOT-BC54843  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1938-4-3 806 San Mateo Crests and steep upper slopes of the San Bruno Hills. 365 Comment
  CAS-BOT-BC54866  Erysimum franciscanum G. B. Rossbach 1940-5-24 932 San Mateo San Bruno Hills. Ridge 0.5 to 1 mile southeast of highest peak. 358 Comment
  CAS-BOT-BC54883  Erysimum franciscanum Phillip Wheeler 1965-6-16 s.n. San Mateo San Bruno Mountains. Colma Canyon - east end. Comment
  POM143100  Erysimum franciscanum Alice Eastwood 1903-2-8 3237 San Mateo Spring Valley Comment
  RSA101861  Erysimum franciscanum G. B. Rossbach 1938-4-3 807 San Mateo San Bruno Hills Comment
  RSA51239  Erysimum franciscanum P. H. Raven 1950-4-16 1781 San Mateo Colma Canyon, San Bruno Mountains. 183 Comment
  UC1034710  Erysimum franciscanum G. B. Rossbach 1955-3-26 573 San Mateo innder dunes back of sea bluff about 1 mi n Sharp Park (Salada) Comment
  UC1034712  Erysimum franciscanum G. B. Rossbach 1955-3-12 569 San Mateo n face of slide s Pedro Point (w edge of Montara Mts.); Devil's Slide 121 Comment
  UC1034934  Erysimum franciscanum G. B. and R. P. Rossbach 1939-3 905 a&b San Mateo creek ravine below Crystal Springs Lake; San Mateo Cr. 60 Comment
  UC1034949  Erysimum franciscanum G. B. and R. P. Rossbach 1938-4-3 806 San Mateo crests and steep upper slopes San Bruno Hills 304 Comment
  CAS-BOT-BC54882  Erysimum franciscanum Mason 1917-4-1 s.n. San Mateo Crystal Springs Lake. Comment
  SEINET11989205  Erysimum franciscanum E. McClintock, Knight, W.; Knight, I. 1982-1 4638 San Mateo Kamchatka Point, San Bruno Mountain Comment
  SD37720  Erythranthe guttata Marie Cummings 1933-5-23 3722 San Mateo Spring Valley Comment
  SEINET14046269 Image available Erythranthe guttata Ynez Whilton Winblad 1941-1 San Mateo 1 Mile north of Crystal Springs Res. Comment
  CAS-BOT-BC403531  Eschscholzia californica Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  CAS-BOT-BC403548  Eschscholzia californica John H. Thomas 1963-5-20 10098 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  POM149355  Eschscholzia californica subsp. californica A. D. E. Elmer 1903-06 4680 San Mateo Crystal Springs Lake. Comment
  POM272325  Eschscholzia californica subsp. californica Arthur L. Cohen 1935-4-21 627 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  CAS-BOT-BC202758  Euonymus occidentalis Alice Eastwood 1933-5-31 11843 San Mateo Butano Canon [Canyon] Comment
  RSA116733  Euonymus occidentalis W. R. Dudley 1895-6-6 s.n. San Mateo Along Pescadero Creek, near Iverson. Comment
  RSA116766  Euonymus occidentalis Elmer I. Applegate 1895-5-11 s.n. San Mateo Near Searsville Dam; Santa Cruz Mountain Peninsula. 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
  UC635625  Euonymus occidentalis var. occidentalis Herbert L. Mason 1924-10-8 1110 San Mateo 2 1/2 mi. w. Palo Alto (n.w. end of Jasper Ridge); Jasper Ridge Comment
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Sep 19 2011
  CDA4815  Euphorbia helioscopia I. J. Campbell 1956-6-3 San Mateo Pescardo, Pedro Valley. 0 Comment
  HSC103383  Euphorbia oblongata Don Pendleton 2001-4-30 64453 San Mateo Along Sandhill Rd., next to Jasper Ridge Biological Reserve, on the north side of Portola Road, Portola Valley. Comment
  SJSU8505  Euphorbia oblongata L. F. Wagner 1979-5-27 31 San Mateo San Francisquito Cr access rd N of Newell Rd bridge Comment
  JROH1970  Euphorbia spathulata Herbert Dengler 1963-4-21 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; 500' N.E. of serp. Comment
  JROH1971  Euphorbia spathulata Karen Weissman 1970-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Area H Comment
  CAS-BOT-BC310614  Eurybia radulina C. F. Leitholt 1894-8-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Devils Canon [Canyon], Black Mountain Comment
  CAS-BOT-BC310622  Eurybia radulina George Oberlander 1949-7-10 364 San Mateo San Francisco Watershed Reserve. On Sawyer Ridge Comment
  CAS-BOT-BC413877  Fallopia convolvulus Ira L. Wiggins 1935-8-24 8159 San Mateo 2 mi. E. of Half Moon Bay Comment
  JROH5162  Festuca arundinacea John Hunter Thomas 1988-5-12 24457 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bridge between the two parts of Searsville Lake Comment
  JROH5163  Festuca arundinacea John Hunter Thomas 1988-5-12 24456 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Lakeside Laboratory Comment
  SJSU16063  Festuca arundinacea Toni Corelli 2009-9-22 446 San Mateo Ano Nuevo State Park, adjacent to Gazos Creek parking lot Comment
  JROH5469  Festuca bromoides Herbert Dengler 1965-5-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. S.E. of S. end of Searsville Lake. 152 Comment
  JROH6209  Festuca bromoides John Rawlings 2013-3-31 1183 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2 at the Zoology Cabin foundation site. 75 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
  UC1106220  Festuca elmeri Peter H. Raven 1950-6-3 2252 San Mateo woods around San Andreas Lake San Andreas Lake Comment
  CAS-BOT-BC278473  Festuca idahoensis L. R. A. 1902-5-11 2450 San Mateo Open ground above La Honda Comment
  CAS-BOT-BC278480  Festuca idahoensis Elizabeth McClintock; Paul Reeberg 1989-5-16 s.n. San Mateo San Bruno Mountain. On ridge east of East Powerline, on south side of Southeast Ridge 274 Comment
  JROH5490  Festuca microstachys Stephen N. Turitzin 1975-5-7 4 San Mateo Jasper Ridge Biological Preserve, Stanford University 190 Comment
  JROH5491  Festuca microstachys Stephen N. Turitzin 1976-3-7 5 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5822  Festuca myuros John Rawlings 2016-3-8 1681 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 14 uphill from dam spillway 108 Comment
  JEPS21675  Festuca occidentalis W. R. Dudley 1895-6-1 San Mateo Pescadero Creek Comment
  JROH5506  Festuca octoflora John H. Thomas 1966-4-20 11561 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5290  Festuca perennis John Hunter Thomas 1987-5-15 24287 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low flow crossing. Comment
  JROH5962  Festuca perennis John Rawlings 2017-5-24 2082 San Mateo Jasper Ridge Biological Preserve, Stanford University. SE corner of Sun Field Station along paved vehicle road to Sun Field Station loading zone 187 Comment
  OBI21962  Festuca perennis Lewis S. Rose 1956-7-2 56116 San Mateo Skyline Blvd, Hills W of San Mateo 183 Comment
  SJSU16015  Festuca perennis John Rawlings, Ken Hickman 2016-5-26 1810 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
  SEINET3386774 Image available Filago californica Lewis S. Rose 1933-4-30 33133 San Mateo Redwood City, open hills Comment
  SEINET11119270  Foeniculum vulgare K. Thorne, J. Chandler 1986-7-25 4945 San Mateo Half Moon Bay, 2 miles S of Moss Beach at Dune Beach, adjacent to the Pacific Ocean. 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-BC437032  Fragaria chiloensis W. R. Dudley 1900-3-18 s.n. San Mateo San Pedro Valley near beach, Santa Cruz Peninsula Comment
  JROH3668  Fragaria vesca John Hunter Thomas 1981-4-23 20486 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC137341  Fragaria vesca C. F. Baker 1902-1-15 233 San Mateo w side King's Mountain Comment
  JROH3672  Fragaria vesca John Hunter Thomas 1990-4-26 24812 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near redwood grove near Rattlesnake Rock Comment
  CAS-BOT-BC457526  Fragaria vesca subsp. californica Elizabeth McClintock 1965-3-14 s.n. San Mateo Cable Ravine, San Bruno Mountain Comment
  CAS-BOT-BC52677  Frangula californica subsp. californica W. R. Dudley 1899-5-14 s.n. San Mateo Baden Brook hills Comment
  JROH3542  Frangula californica subsp. californica John H. Thomas 1974-8-11 17509 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3574  Frangula californica subsp. tomentella John Hunter Thomas 1981-2-14 20213 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET6671073 Image available Frankenia grandifolia Malcolm A. Nobs, S. Galen Smith 1949-1 1599 San Mateo Mouth of Pescadero Creek Comment
  CAS-BOT-BC211603  Frankenia salina L. R. Abrams 1906-9-29 s.n. San Mateo Cooley's Landing Comment
  POM130871  Fraxinus latifolia C. F. Baker 1903-6-30 3355 San Mateo Crystal Springs Lake Comment
  UCD122086  Fraxinus latifolia Alan T. Whittemore 1976-5-29 108 San Mateo Crystal Springs Canyon, San Mateo Creek, 1/2 mile east of dam on Crystal Springs Road. 39 Comment
  JROH4685  Fritillaria affinis John H. Thomas 1977-4-29 18573 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM278014  Fritillaria affinis Lyman Benson 1935-5-5 6542 San Mateo Lake Searsville 152 Comment
  UC143428  Fritillaria affinis C. F. Baker Mar 1903 5047 San Mateo Crystal Springs Lake Comment
  UC204192  Fritillaria affinis A. D. E. Elmer May, 1903 5045 San Mateo Portola Comment
  UC3641  Fritillaria affinis J. Burtt Davy 1895-4-20 1056 San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC130121  Fritillaria affinis George Oberlander 1949-4-17 81 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC130131  Fritillaria affinis Margaret A. Barry 1938-4-5 234 San Mateo Woods on Coal Mine Ridge Comment
  UCSB18941  Fritillaria affinis Muirhead, M. 1964-4-17 San Mateo Crocker Estate, Hillsborough, California 91 Comment
  JEPS4953  Fritillaria biflora var. ineziana Inez Smith 1914-3-12 San Mateo Hillsboro Comment
  JEPS61962  Fritillaria biflora var. ineziana Inez Smith 1914-3-12 San Mateo San Mateo Comment
  RSA289961  Fritillaria liliacea I. Smith 1915-3-15 s.n. San Mateo Hillsboro Comment
  RSA195511  Galium aparine John H. Thomas 1966-4-22 11566 San Mateo Jasper Ridge Biological Experimental Area. About 5 miles SW of Palo Alto. Comment
  JROH3797  Galium murale John H. Thomas 1975-4-19 17790 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3792  Galium murale John H. Thomas 1968-3-17 14189 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3793  Galium murale John H. Thomas 1969-4-12 14891 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near redwoods below dam Comment
  UC496159  Galium porrigens var. porrigens W. F. Wight 1900-1-28 San Mateo trail to Bukhorn Ranch above Prestons (old La Honda Rd.) Comment
  CDA28811  Galium triflorum D. G. Kelch 2009-6-9 9 .402 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
  CAS-BOT-BC303465  Gamochaeta ustulata Elizabeth McClintock; Philip Wheeler 1967-6-11 s.n. San Mateo Upper Colma Canyon, San Bruno Mt Comment
  CAS-BOT-BC303466  Gamochaeta ustulata Elizabeth McClintock; Philip Wheeler 1967-6-11 s.n. San Mateo Radio Rd, San Bruno Mt Comment
  CAS-BOT-BC303472  Gamochaeta ustulata W. R. Dudley 1900-3-18 s.n. San Mateo Santa Cruz Mt Peninsula. Hill E of Salada Valley Comment
  CAS-BOT-BC194558  Garrya elliptica Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Colma Canyon Comment
  JROH5183  Gastridium phleoides John H. Thomas 1967-5-31 12920 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5187  Gastridium phleoides John H. Thomas 1977-4-29 18568 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1100357  Gastridium ventricosum Malcolm A. Nobs and S. Galen Smith 1949-8-26 1610 San Mateo marshy stream bank about 1 mi s Pigeon Point Comment
  CDA5303  Gaura sinuata G. D. Barbe 1974-6-4 1824 San Mateo Middle Fork San Pedro Creek, southeast of Oddstad Boulevard, Linda Mar District. 0 Comment
  JROH2004  Genista monspessulana John Hunter Thomas 1984-4-24 23298 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Sand Hill Road fence Comment
  JROH2014  Genista monspessulana John Hunter Thomas 1983-4-14 21407 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  CAS-BOT-BC219148  Genista monspessulana Doris M. Ladd 1954-5-1 50 San Mateo Road to La Honda, near Five Points Comment
  RSA0028369  Geranium carolinianum W. R. Dudley 1898-4-24 s.n. San Mateo Field near Corte de Madera Bridge. Comment
  HSC23939  Geranium retrorsum Mary Katherine Wicksten 1971-7-22 187 San Mateo Huddart Park, near park entrance Comment
  JROH3152  Gilia achilleifolia subsp. multicaulis John H. Thomas 1967-4-28 12722 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3157  Gilia achilleifolia subsp. multicaulis John Hunter Thomas 1980-4-24 19899 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  SJSU15952  Gilia clivorum John Rawlings, Ken Hickman 2016-5-26 1829 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; 25 yards down-slope from the San Francisco Watershed boundary fence 122 Comment
  UC535968  Gilia clivorum Elmer I. Applegate 1895-5-11 343 San Mateo near Searsville; near Searsville Comment
  CAS-BOT-BC303679  Glebionis coronaria Elizabeth McClintock; Paul Reeberg 1988-4-14 s.n. San Mateo San Bruno Mts. N of school at Lower Guadalupe Canyon Parkway Comment
  CAS-BOT-BC303683  Glebionis coronaria Robert S. Jr. Cox 1946-8-10 s.n. San Mateo Half Moon Bay 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
  RSA18268  Gnaphalium californicum C. B. Wolf 1927-6-27 455 San Mateo Los Troncos Creek, 2 mi back of Stanford University. Comment
  RSA18517  Gnaphalium californicum C. B. Wolf 1927-7-14 602 San Mateo Summit of Kings Mountain Rd. Comment
  CAS-BOT-BC307439  Gnaphalium palustre Le Roy Abrams 1900-10-1 1006 San Mateo Searsville Lake Comment
  SEINET11849477  Gnaphalium palustre Unknown 1932-1 9161 San Mateo Gov. Rolph Estate Comment
  SEINET11835908  Grindelia E. A. Purer 1933-1 5369 San Mateo 2 mi S of Pigeon Point Comment
  SD12565  Grindelia arenicola Edith A. Purer 1933-7-27 5369 San Mateo 2 miles south of Pigeon Point Comment
  LA203650  Grindelia camporum Ira L. Wiggins; 1929-7-4 3799 San Mateo Pescadero Beach Comment
  CAS-BOT-BC304518  Grindelia hirsutula Alice Eastwood 1937-7-25 18885 San Mateo Pebble Beach, Pescadero Comment
  CAS-BOT-BC304534  Grindelia hirsutula John Thomas Howell 1924-10-26 724 San Mateo Moss Beach Comment
  CAS-BOT-BC304558  Grindelia hirsutula Walter Knight; Irja Knight 1964-3-15 s.n. San Mateo San Bruno Mountain. Colma Canyon, south ridge Comment
  JEPS10208  Grindelia hirsutula Rimo Bacigalupi with G. T. Robbins 1954-6-18 4550 San Mateo road bank along Alpine Road 1/4 mi w Skyline Boulevard 701 Comment
  JEPS20069  Grindelia hirsutula Peter H. Raven 1957-9-1 11297 San Mateo at junction of State Highway 1 and Tunitas Creek Comment
  POM190261  Grindelia hirsutula D. D. Keck 1932-5-25 1783 San Mateo Hills two miles W of Belmont Comment
  RSA128842  Grindelia hirsutula H. L. Mason 1921-7-3 s.n. San Mateo Pescadero-La Honda Road. Comment
  RSA296414  Grindelia hirsutula R. C. Bacigalupi, G. Thomas Robbins 1954-6-18 4550 San Mateo Along Alpine Road, 0.25 mile W of Skyline Blvd. 701 Comment
  SJSU23  Grindelia hirsutula C. D. Duncan 1925-5-23 San Mateo S end Jasper Ridge above Searsville L Comment
  UC32136  Grindelia hirsutula J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Pilarcitos Canyon; Pilarcitos Lake, Pilarcitos Canyon Comment
  UC472386  Grindelia hirsutula Katharine Brandegee 1908-7-1 San Mateo near Halfmoon Bay (Moss Beach); Moss Beach Comment
  UC897085  Grindelia hirsutula J. T. Howell 1932-10-21 San Mateo Pigeon Point Comment
  SEINET5709422 Image available Grindelia hirsutula var. hirsutula Delzie Demaree 1933-1 10424 San Mateo Spring Valley road. Comment
  RSA0110998  Grindelia stricta var. angustifolia L. S. Rose 1938-8-18 38229 San Mateo Brisbane 2 Comment
  POM308523  Grindelia stricta var. platyphylla Henry J. Ramsey, Henry J. Ramsey 1939-10-7 3172 San Mateo Coast, Highway 1. Comment
  JEPS54104  Guillenia lasiophylla R. J. Smith 1898-5 San Mateo Los Buellis Hills Mt. Hamilton Range Comment
  CAS-BOT-BC282867  Hainardia cylindrica A. G. Vestal 1926-5-1 s.n. San Mateo San Pedro Point Comment
  RSA121240  Hainardia cylindrica A. Hormay 1932-5-29 17 San Mateo San Bruno. Comment
  UC1132185  Hainardia cylindrica A. Hormay 1932-5-29 San Mateo San Bruno 0 Comment
  CAS-BOT-BC309529  Helenium puberulum R. E. Frenkel 1963-12-7 332 San Mateo San Francisco Water District, Whiting Ridge Road, ca. 0.8 mile south-west of Spring Valley Road, at Fire Warden's Gate Comment
  JEPS35417  Helenium puberulum L. M. Newlon 1921-7-30 254 San Mateo seashore from Salada to Mussel Comment
  JROH829  Helenium puberulum John H. Thomas 1961-6-14 9542 San Mateo Jasper Ridge Biological Preserve, Stanford University; along stream below dam Comment
  CAS-BOT-BC309539  Helenium puberulum E. H. Richardson 1906-10-1 s.n. San Mateo Cooleys Landing Comment
  POM54388  Helenium puberulum A. D. E. Elmer 1903-07 4968 San Mateo San Mateo Comment
  UCD132749  Helenium puberulum W. A. Harvey; J. M. Tucker 1948-6-28 1701 San Mateo on ridge around 3 miles north of Pescadero. Comment
  JROH849  Helianthella californica var. californica J. S. McMurphy 1911-5-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1832  Helianthemum scoparium John H. Thomas 1961-5-5 9220 San Mateo Jasper Ridge Biological Preserve, Stanford University; at NW end of ridge 152 Comment
  JROH1833  Helianthemum scoparium John H. Thomas 1961-6-14 9537 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM305857  Heliotropium curassavicum var. oculatum Henry J. Ramsey, Henry J. Ramsey 1939-10-7 1163 San Mateo San Mateo Comment
  CAS-BOT-BC314913  Hemizonia congesta subsp. luzulifolia Ned Cahill 1974-8-26 365 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi. westward from Redwood City Comment
  CAS-BOT-BC314920  Hemizonia congesta subsp. luzulifolia John H. Thomas 1971-5-2 16848 San Mateo Near intersection of Canada Road and Edgewater Road about three miles westward from Redwood City 152 Comment
  CAS-BOT-BC314927  Hemizonia congesta subsp. luzulifolia Ned Cahill 1974-4-29 188 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi. westward from Redwood City 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
  SBBG55408  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1914-7-15 5140 San Mateo Crystal Springs Comment
  CAS-BOT-BC314929  Hemizonia congesta subsp. luzulifolia J. I. McMurphy 1906-5-8 s.n. San Mateo East of Crystal Lakes, Santa Cruz Mountain Peninsula Comment
  SEINET11841255  Hemizonia corymbosa E. H. Graham 1931-1 6924 San Mateo Ano Nuevo Point Comment
  POM53161  Hemizonia corymbosa subsp. corymbosa C. F. Baker 1902-5-1 686 San Mateo Crystal Springs Lake. Comment
  RSA94180  Hemizonia corymbosa subsp. corymbosa D. D. Keck 1932-5-25 1784 San Mateo Hills 2 miles W of Belmont Comment
  RSA94181  Hemizonia corymbosa subsp. corymbosa D. D. Keck 1932-5-11 1765 San Mateo 1 mile E of San Gregorio. 50 Comment
  POM53591  Hemizonia luzulifolia C. F. Baker 1903-6-30 3350 San Mateo Crystal Springs Comment
  SEINET11848430  Hemizonia luzulifolia E. A. Purer 1933-1 5398 San Mateo Bayshore Highway Comment
  JROH878  Hesperevax sparsiflora var. sparsiflora H. A. Borthwick 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH887  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1978-4-22 19109 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH894  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1982-4-28 20874 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC403870  Hesperocnide tenella James McMurphy 1906-5-14 s.n. San Mateo Above Stanford Residence, San Francisquito Creek Comment
  JEPS121586  Hesperolinon disjunctum Ryan E. O'Dell 2013-6-13 San Mateo About 1.35 airline mile S of Black Mountain peak. Comment
Read comments
May 8 2019
  JROH2923  Hesperolinon micranthum John H. Thomas 1963-5-15 10093 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2927  Hesperolinon micranthum John H. Thomas 1968-5-22 14460 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM139231  Hesperolinon micranthum A. D. E. Elmer 1903-05 4422 San Mateo Crystal Springs Lake. Comment
  RSA151712  Hesperolinon micranthum H. K. Sharsmith 1947-6-3 3975 San Mateo Above Redwood City, outer South Coast Ranges. 152 Comment
  CAS-BOT-BC148464  Heteromeles arbutifolia John H. Thomas 1971-5-2 15865 San Mateo Near intersection of Canada and Edgewater Roads. About 4 miles SW of center of Redwood City. 304 Comment
  HSC23976  Heteromeles arbutifolia Mary Katherine Wicksten 1971-6-29 136 San Mateo Huddart Park, along Zweirlein Trail Comment
  RSA0072374  Heteromeles arbutifolia John H. Thomas 1965-12-19 11459 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  SD49795  Heteromeles arbutifolia John H. Thomas 1958-11-22 7504 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. North central portion of ridge. 152 Comment
  RSA0074498  Heterotheca camphorata L. R. Abrams 1901-09 2228 San Mateo Menlo Park. Comment
  RSA640952  Heterotheca sessiliflora subsp. bolanderi R. F. Thorne, George B. Everett 1963-6-9 32215 San Mateo On Kamchatka Point near TV tower on San Bruno Mountain. 335 Comment
  CAS-BOT-BC310763  Heterotheca sessiliflora subsp. echioides W. R. Dudley 1895-9-21 s.n. San Mateo Santa Cruz Mountain Peninsula. By road near Bay back of Menlo Park 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
  JROH3885  Heuchera micrantha John H. Thomas 1970-5-16 15628 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC420892  Heuchera micrantha var. diversifolia George Oberlander 1950-5-28 955 San Mateo Pilarcitos Canyon 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-BC424378  Heuchera micrantha var. hartwegii Walter & Irja Knight 1963-7-14 s.n. San Mateo Base of Quarry 2; San Bruno Mountain Comment
  POM207955  Hierochloe occidentalis C. F. Baker 1902-1-15 247 San Mateo West side of King's Mountain Comment
  CAS-BOT-BC55442  Hirschfeldia incana Ned Cahill 1974-10-8 375 San Mateo About 3 miles westward from Redwood City. Near the intersection of Canada and Edgewood Roads. Comment
  CAS-BOT-BC55443  Hirschfeldia incana J. H. Thomas 1963-8-4 10234 San Mateo About 2.5 miles inland from San Gregorio along the highway. Comment
  CAS-BOT-BC55436  Hirschfeldia incana Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountains. Base of Quarry 2. Comment
  POM274869  Holodiscus discolor Lyman D. Benson 1937-8-15 8487 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains. 244 Comment
  RSA449783  Holodiscus discolor D. D. Keck 1932-6-1 1795 San Mateo Above Searsville Lake, on road between Woodside and Skyline Blvd. Santa Cruz Mountains. Comment
  CAS-BOT-BC284681  Hordeum brachyantherum subsp. brachyantherum A. D. E. Elmer 1903-6-1 4851 San Mateo Crystal Springs Lake Comment
  SEINET10610448  Hordeum brachyantherum subsp. brachyantherum Edwin B. Copel 1903-6-10 Copeland 3304 San Mateo Montara Point. 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
  JROH5225  Hordeum brachyantherum subsp. californicum John Hunter Thomas 1979-5-22 19575 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC285153  Hordeum marinum subsp. gussoneanum Le Roy Abrams 1901-5-1 1660 San Mateo Cooley's Landing Comment
  SEINET10859740  Hordeum marinum subsp. gussoneanum Delzie Demaree 1932-5-16 Demaree 9139 San Mateo Spring valley lakes. Comment
  JROH5252  Hordeum murinum subsp. glaucum John Hunter Thomas 1980-4-10 19879 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Searsville Lab. Comment
  CAS-BOT-BC289458  Hordeum murinum subsp. leporinum John H. Thomas 1963-5-20 10123 San Mateo Ano Nuevo Island about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  JEPS71235  Hordeum murinum subsp. leporinum William S. Cooper 1924-11-19 35 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC271355  Hordeum vulgare Fred Hemphill 1973-4-22 733 San Mateo Area north of Malabar Road and Melendy Drive, San Carlos 207 Comment
  JEPS29415  Horkelia californica L. R. Heckard 1962-7-16 1262 San Mateo near summit of San Bruno Mt. (w-facing slope to the ne of transmitting station KQED) 335 Comment
  SD39947  Horkelia californica Edith A. Purer 1933-7-27 5341 San Mateo High stabilized sand dunes, Pigeon Point Comment
  CAS-BOT-BC536148  Horkelia californica Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo Below parking lot, San Bruno Mountain Comment
  SEINET7097934  Horkelia californica subsp. californica A. G. Vestal 1937-6-15 s.n. San Mateo Lat. 37 14' 13ao N, Long. 122 24' 55ao W (NAD27 converted to WGS84 decimal degrees). Pebble Beach west of Pescadero. UTM Zone 10, 551863 mE, 4121109 mN. Comment
  CAS-BOT-BC143927  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-BC144012  Horkelia marinensis George Oberlander 1951-7-12 1204 San Mateo Clearing in San Andreas Valley, San Francisco Watershed Reserve Comment
  JEPS17469  Hydrocotyle ranunculoides W. L. Jepson 1910-8-18 4161 San Mateo Butano Creek Comment
Read comments
Sep 6 2011
  UC306530  Hydrocotyle verticillata A. D. E. Elmer July, 1903 4960 San Mateo Crystal Springs Lake Comment
  CHSC99214  Hypericum canariense John Dittes; Josephine Guardino 2007-6-30 1457 San Mateo Central Coast; Ano Nuevo State Reserve; coastal terrace ca. 2.4 air-mile SE of Pidgeon Point Lighthouse; east side of Highway 1 on slope south and east of Gazos Creek. Undesignated section of Punta Del Ano Nuevo Land Grant. 21 Comment
  JROH913  Hypochaeris glabra John H. Thomas 1965-4-28 10596 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH916  Hypochaeris glabra John H. Thomas 1973-4-20 16581 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD133374  Hypochaeris glabra J. Skoss 1948-8-22 111 -A San Mateo San Vincente Canyon, near Montara. Comment
  CAS-BOT-BC311480  Hypochaeris radicata Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  POM55230  Hypochaeris radicata A. D. E. Elmer 1903-04 4861 San Mateo Lake San Andreas Comment
  SD39734  Hypochaeris radicata Edith A. Purer 1933-7-27 5342 San Mateo Pigeon Point Comment
  CAS-BOT-BC311487  Hypochaeris radicata W. R. Dudley 1906-6-10 s.n. San Mateo Santa Cruz Mountain Peninsula. So. Cahill Ridge Comment
  CAS-BOT-BC311489  Hypochaeris radicata David D. Keck 1932-5-6 1462 San Mateo Belmont Comment
  CDA34446  Iris douglasiana M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 877 San Mateo Pacifica: San Pedro Valley County Park, along Brooks Creek Trail. 148 Comment
  POM168922  Iris douglasiana C. F. Baker 1902-3-22 343 San Mateo Crystal Springs Lake 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
  UC306610  Iris douglasiana A. D. E. Elmer Jun 1903 4806 San Mateo San Mateo Comment
  POM196487  Iris douglasiana W. R. Dudley 1903-5-21 s.n. San Mateo Santa Cruz Peninsula, upper Pescadero Beach 152 Comment
  POM290981  Iris douglasiana Robert Benson 1930-4-6 2043 San Mateo Moss Beach 15 Comment
  UCD138710  Iris douglasiana Ogden C. Riddle 1941-4-6 65 San Mateo Finney Ridge, near Half Moon Bay. 243 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-BC133649  Iris longipetala Walter Knight; Irja Knight 1965-3-21 956 San Mateo Along ridge near power lines at Brisbane end Comment
  CAS-BOT-BC133656  Iris longipetala John H. Thomas 1955-4-6 4838 San Mateo East facing slope of San Bruno Mountain just north of South San Francisco 91 Comment
  CAS-BOT-BC133661  Iris longipetala George Oberlander 1950-4-2 587 San Mateo San Andreas Lake Comment
  CAS-BOT-BC133673  Iris longipetala Javier Penalosa 1963-3-30 2707 San Mateo North of Randolph Drive at Hillside Blvd. in SSF 91 Comment
  HSC13892  Iris longipetala L. S. Rose 1968-3-26 68009 San Mateo S base of San Bruno Mtns., S San Francisco 30 Comment
  SJSU7515  Iris longipetala Lewis S. Rose 1968-3-26 68009 San Mateo S base San Bruno Mts, S San Francisco 30 Comment
  POM263469  Iris missouriensis R. C. Foster 1937-4-30 244 San Mateo Near the Skyline Boulevard, north of Kings Mountain Comment
  CAS-BOT-BC112609  Isolepis cernua John Hunter Thomas 1955-7-17 5290 San Mateo Along the coast, 1.6 miles S of Dolan Creek. 91 Comment
  CAS-BOT-BC112626  Isolepis cernua E. B. Copeland 1903-6-15 3315 San Mateo Montara Point Comment
  POM185726  Isolepis cernua E. B. Copeland 1903-5-24 3258 San Mateo Montara Point. Comment
  CAS-BOT-BC340136  Jaumea carnosa LeRoy Abrams 1901-9-1 2224 San Mateo Cooley's Landing Comment
  JROH2777  Juglans hindsii John Hunter Thomas 1987-4-16 24203 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC652559  Juncus ambiguus Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9291 San Mateo Ano Nuevo Point Comment
  RSA0064345  Juncus balticus Peter Rubtzoff, Elizabeth McClintock 1989-8-31 10045 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, along old Guadalupe Road, east of Saddle Trail junction, San Bruno Mountains. Comment
  JROH4450  Juncus bufonius var. bufonius John H. Thomas 1974-5-19 17384 C San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4451  Juncus bufonius var. bufonius John Hunter Thomas 1977-6-16 18811 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta in Searsville Lake. Comment
  SJSU16038  Juncus bufonius var. bufonius Toni Corelli, John Rawlings 2016-4-29 1765 San Mateo Cascade Field along Cascade Cr. Trail, Ano Nuevo State Park 21 Comment
  HSC23990  Juncus confusus Mary Katherine Wicksten 1971-7-2 153 San Mateo Huddart Park at Miwok area Comment
  POM312825  Juncus effusus subsp. pacificus Malcolm A. Nobs, S. Galen Smith 1949-8-26 1589 San Mateo About 1 mile south of Half Moon Bay. Comment
  CAS-BOT-BC173814  Juncus effusus var. brunneus Peter Rubtzoff; Roman Gankin 1975-9-11 8372 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  CAS-BOT-BC176166  Juncus lescurii Peter Rubtzoff 1976-6-30 8708 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
  JROH4493  Juncus occidentalis John Hunter Thomas 1987-5-19 24302 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4497  Juncus occidentalis John Hunter Thomas 1988-5-25 24489 San Mateo Jasper Ridge Biological Preserve, Stanford University. Road near low flow crossing. Comment
  RSA6313  Juncus occidentalis D. D. Keck 1932-5-6 1468 San Mateo Belmont. Comment
  HSC23957  Juncus patens Mary Katherine Wicksten 1971-8-23 210 San Mateo Huddart Park, ditch on way to Miwok Area Comment
  JROH4475  Juncus patens Kent E. Holsinger 1979-12-18 83 San Mateo Jasper Ridge Biological Preserve, Stanford University. E side of Searsville Lake, S side of big bay. Comment
  CAS-BOT-BC210074  Juncus phaeocephalus Peter Rubtzoff 1980-8-4 9562 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
  UC625335  Juncus phaeocephalus var. paniculatus L. R. Abrams and I. L. Wiggins 1939-6-3 426 San Mateo Ano Nuevo Point Comment
  JROH4505  Juncus xiphioides John H. Thomas 1967-6-1 12960 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4515  Juncus xiphioides John Hunter Thomas 1978-5-16 19219 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5269  Koeleria macrantha John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM347043  Koeleria macrantha Lyman Benson 1935-5-5 6535 San Mateo Lake Searsville; Santa Cruz Mt. Range 152 Comment
  SJSU1653  Koeleria macrantha D. R. Fincher 1955-5-29 San Mateo corner of Canada Road & Edgewood Road, San Mateo 503 Comment
  CAS-BOT-BC340469  Lactuca saligna Walter Knight; Irja Knight 1963-10-7 328 San Mateo San Bruno Mountain. Cow Trough Ravine Comment
  UCR256303  Lactuca serriola Peter Rubtzoff 1975-9-11 8379 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  CAS-BOT-BC340637  Lactuca serriola James McMurphy 1905-10-1 s.n. San Mateo Corte de Madera Creek Comment
  CAS-BOT-BC340639  Lactuca serriola Ned Cahill 1974-5-13 276 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JEPS20287  Lagophylla ramosissima Lewis S. Rose 1955-9-19 55176 San Mateo 7 mi w of Saratoga; Skyline Boulevard 685 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
  UCSC003372  Lasthenia Randall Morgan 2001-5-9 3726 San Mateo Bean Hollow State Beach, San Mateo County Comment
  CAS-BOT-BC339063  Lasthenia californica V. F. Hesse 1964-5-26 3207 San Mateo Pigeon Point 4 Comment
  CAS-BOT-BC339058  Lasthenia californica Lewis S. Rose 1933-5-3 33141 San Mateo Montara Comment
  JEPS98730  Lasthenia californica subsp. californica Raymund Chan 1998-5-9 98031 San Mateo Mori Point Pacifica Comment
  JROH980  Lasthenia californica subsp. californica John Hunter Thomas 1988-5-3 24440 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH981  Lasthenia californica subsp. californica John Hunter Thomas 1989-5-9 24704 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC30457  Lasthenia californica subsp. californica J. Burtt Davy 1897-4-1 San Mateo Ocean View Comment
  UC90022  Lasthenia californica subsp. californica Alice Eastwood 1901-5-19 San Mateo Blenheim Comment
  SEINET11811267  Lasthenia chrysostoma Unknown 1932-1 9113 San Mateo Spring Valley Lake Comment
  CAS-BOT-BC355539  Lasthenia glabrata var. glabrata John H. Thomas 1956-4-8 5629 San Mateo Near Bayshore Highway about 2 miles east of Redwood City Comment
  JROH974  Lasthenia gracilis John H. Thomas 1966-4-22 11569 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15210  Lasthenia gracilis Teri Barry 2010-4-23 San Mateo Jasper Ridge Biological Preserve northwest of Trail 9 near the intersection of Road F and Trail 9. 189 Comment
  RSA116657  Lasthenia macrantha subsp. macrantha H. L. Mason 1921-6-1 s.n . San Mateo Pebble Beach near Pescadero Comment
  CAS-BOT-BC368186  Lasthenia minor Robert Robertson 1959-5-1 114 San Mateo Pescadero Beach. 9 Comment
  CAS-BOT-BC368191  Lasthenia minor K. L. Chambers 1956-6-20 1044 San Mateo Mouth of Pescadero Creek on bluff between Hwy. 1 and the ocean; around parking area Comment
  SEINET5630609 Image available Lathyrus Unknown 1907-1 8583 San Mateo Back of San Mateo, on the Half Moon Bay road Comment
  UC81788  Lathyrus littoralis Katharine Brandegee 1905-6-20 San Mateo near Halfmoon Bay; Moss Beach Comment
  SEINET956172  Lathyrus vestitus subsp. puberulus A. D. E. Elmer 1903-1 4745 San Mateo San Mateo Comment
  RSA15256  Lathyrus vestitus subsp. vestitus Carl B. Wolf 1927-2-19 218 San Mateo East side of Kings Mountain. Comment
  JROH2033  Lathyrus vestitus var. vestitus John Hunter Thomas 1978-4-20 19083 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2037  Lathyrus vestitus var. vestitus John Hunter Thomas 1984-4-24 23297 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Sand Hill Road fence Comment
  CAS-BOT-BC323184  Layia chrysanthemoides Donald A. Johansen 1933-5-27 803 San Mateo Along Skyline Boulevard at junction of side road leading to Burlingame Comment
  UC913065  Layia chrysanthemoides David D. Keck 1932-5-6 1487 San Mateo near Skyline Boulevard (w of Millbrae Highlands) Comment
  CAS-BOT-BC323151  Layia chrysanthemoides David D. Keck 1933-5-11 2307 San Mateo Skyline Boulevard, E of Salada, northern San Mateo County. Comment
  POM298262  Layia chrysanthemoides D. D. Keck 1932-5-6 1487 San Mateo Near Skyline Blvd, W of Millbrae Highlands. Comment
  CAS-BOT-BC321065  Layia gaillardioides Alice M. King 1917-4-24 s.n. San Mateo San Bruno Hills Comment
  CAS-BOT-BC321090  Layia gaillardioides James I. McMurphy 1909-5-26 s.n. San Mateo Above La Honda 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-BC321116  Layia gaillardioides David D. Keck 1932-5-11 1763 San Mateo La Honda road 2 miles W of Skyline Blvd. Comment
  CAS-BOT-BC327451  Layia hieracioides David D. Keck 1932-6-1 1796 San Mateo Above Searsville Lake, on La Honda road, E slope of Santa Cruz Mountains Comment
  CAS-BOT-BC327484  Layia hieracioides Lewis S. Rose 1936-5-28 36309 San Mateo Emerald Lake, W of Redwood City 91 Comment
  CAS-BOT-BC327465  Layia hieracioides Alice Eastwood; John Thomas Howell 1938-6-16 60047 San Mateo Ano Nuevo Pines Comment
  CAS-BOT-BC327466  Layia hieracioides John H. Thomas 1950-4-9 1491 San Mateo About 2--3 miles W of Santa Cruz. Comment
  JROH982  Layia hieracioides John H. Thomas 1958-5-10 7158 San Mateo Jasper Ridge Biological Preserve, Stanford University; along trail near Searsville Lake Comment
  UC913054  Layia hieracioides David D. Keck 1933-5-11 2306 San Mateo e of Salada; Skyline Boulevard Comment
  JROH996  Layia platyglossa John H. Thomas 1973-4-14 16565 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH998  Layia platyglossa John H. Thomas 1975-4-3 17703 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC382080  Layia platyglossa Le Roy Abrams 1901-5-5 1565 San Mateo Woodside Comment
  CAS-BOT-BC382087  Layia platyglossa W. R. Dudley 1909-4-27 s.n. San Mateo Santa Cruz Mountain Peninsula: Whipple Road near Blacksmith shop between Woodside and Crystal Springs Lakes Comment
  CAS-BOT-BC382218  Layia platyglossa David D. Keck 1932-5-6 1491 San Mateo East side of Crystal Springs Lake 60 Comment
  SEINET10879172  Layia platyglossa John T. Middleton 1937-4-10 Middleton s.n. San Mateo San Mateo Co., Ca. Comment
  RSA128853  Layia platyglossa subsp. campestris W. R. Dudley 1909-4-27 s.n. San Mateo Whipple Road near Blacksmith shop between Woodside and Crystal Springs Lake. Plants of the Santa Cruz Mountain Peninsula. Comment
  RSA128806  Layia platyglossa subsp. platyglossa Peter H. Raven 1950-4-16 1780 San Mateo Colma Canyon, San Bruno Mountains. 183 Comment
  CAS-BOT-BC527273  Lemna minuta Roxana S. Ferris 1921-3-20 2114 a San Mateo Alpine Creek Road near juncture with Pescadero Road Comment
  CDA987  Leontodon taraxacoides D. G. Kelch, B. G. Baldwin, Sue Bainbridge, Abigail Moore 2005-6-21 5 .37 San Mateo S.F. Water District land, near Spring Valley. NE corner Pilarcitos Lake. Comment
  CAS-BOT-BC221522  Lepechinia calycina George Oberlander 1940-5-31 142 San Mateo San Francisco Watershed Reserve. Sweeney Ridge Comment
  CAS-BOT-BC221532  Lepechinia calycina Lewis S. Rose 1933-6-9 33225 San Mateo Belmont Comment
  JROH2788  Lepechinia calycina Richard L. Garber 1971-5-18 23 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18304  Lepechinia calycina Carl B. Wolf 1927-5-31 412 San Mateo North end of Searsville Lake. Comment
  UC191843  Lepechinia calycina Edward Lee Greene 1887-6-12 San Mateo San Mateo Comment
  UC306600  Lepechinia calycina A. D. E. Elmer Jun 1903 4416 San Mateo San Mateo Comment
  JROH1536  Lepidium campestre V. Paranal 1976-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC496  Lepidium didymum F. Berryman 1929-5-10 San Mateo Moss Beach. 9 Comment
  RSA52666  Lepidium didymum I. L. Wiggins 1949-7-2 12198 San Mateo Pescadero Beach. Comment
  UCD115359  Lepidium didymum J. D. Skoss 1948-7-25 53 San Mateo San Vicente Canyon near Montara. Comment
  CAS-BOT-BC89706  Lepidium latifolium John Thomas Howell 1978-7-18 53189 San Mateo At Airport Sheraton, Airport Boulevard, Burlingame. Comment
  CAS-BOT-BC12595  Lepidium nitidum Elizabeth McClintock; Arthur Menzies 1963-2-16 s.n. San Mateo San Bruno Mountains. Below top of mountain in vicinity of radio station. Comment
  RSA66570  Lepidium oxycarpum D. D. Keck 1932-3-24 1401 San Mateo Redwood City, at border of San Francisco Bay. Comment
  RSA95516  Lepidium oxycarpum L. S. Rose 1953-4-5 53009 San Mateo Redwood City, along Bayshore Highway. 3 Comment
  JROH5597  Lepidium strictum John Rawlings 2011-4-24 1086 San Mateo Jasper Ridge Biological Preserve, Stanford University; parking area for Ranger Bath on Rd. L. 108 Comment
  CAS-BOT-BC12947  Lepidium strictum R. E. Frenkel 1964-3-29 411 San Mateo Parking area in west Menlo Park. 91 Comment
  POM65040  Leptosiphon ambiguus A. D. E. Elmer 1903-04 s.n. San Mateo Crystal Springs Lake. Comment
  SJSU1074  Leptosiphon ambiguus C. W. Sharsmith 1951-4-6 5824 San Mateo Woodside Hills c. 3 mi W of Woodside 182 Comment
  CAS-BOT-BC226724  Leptosiphon androsaceus Adele Lewis Grant 1917-5-6 936 San Mateo Pescadero Comment
  POM279155  Leptosiphon androsaceus Lyman Benson 1935-5-5 6531 San Mateo Lake Searsville. 152 Comment
  POM65863  Leptosiphon androsaceus L. R. Abrams 1901-05 1569 San Mateo Woodside Comment
  JROH5924  Leptosiphon androsaceus Herb Dengler 1970-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; East serpentine Comment
  JROH3189  Leptosiphon parviflorus John H. Thomas 1961-4-8 9077 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0103657  Leptosiphon parviflorus H. E. Wieser 1929-05 s.n. San Mateo Pebble Beach. Coast Range. 30 Comment
  UCD103096  Leptospermum laevigatum T. C. Fuller 1969-5-15 18476 San Mateo Highway 92 to San Mateo, E limits of Half Moon Bay. Comment
  CAS-BOT-BC324052  Lessingia arachnoidea W. R. Dudley 1909-10-10 s.n. San Mateo East side of Crystal Springs Reservoir, Santa Cruz Mountains Comment
  CAS-BOT-BC324063  Lessingia arachnoidea John Thomas Howell 1926-10-9 2220 A San Mateo Near Crystal Springs Lake 91 Comment
  CAS-BOT-BC324071  Lessingia arachnoidea Peter H. Raven 1957-9-1 11301 San Mateo Along State Highway 5 (Skyline Blvd.) at Woodside Road Comment
  CAS-BOT-BC539289  Lessingia arachnoidea John Rawlings; Ken Hickman 2016-7-21 1906 San Mateo Caltrans right-of-way upslope from Hwy 92 W onramp to Hwy 280 N; downslope from San Francisco Watershed fenceline 122 Comment
  JEPS88045  Lessingia arachnoidea S. Markos 1996-7-28 126 San Mateo 200 yds S of Junction with Golf Course Rd. and Skyline Blvd.; Crystal Springs Reservoir Comment
  JROH1014  Lessingia glandulifera var. glandulifera John H. Thomas 1975-5-26 17902 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET7063128  Lessingia glandulifera var. pectinata A. G. Vestal 1963-7-12 s.n. San Mateo Jasper Ridge. UTM Zone 10, 568418mE, 4140415mN. (WGS84/NAD83). 174 Comment
  CAS-BOT-BC324175  Lessingia hololeuca LeRoy Abrams 1902-9-21 2987 San Mateo Crystal Springs Comment
  JEPS88020  Lessingia hololeuca S. Markos, Noel Johnson 1996-9-17 147 San Mateo Docent Center, Jasper Ridge; Jasper Ridge Biological Preserve Comment
Read comments
Oct 15 2013
  JROH1033  Lessingia hololeuca John H. Thomas 1972-8-18 16153 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1037  Leucanthemum maximum Toni Corelli 2009-7-22 353 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek bed below Dennis Martin marker 71 Comment
  UC905072  Leucanthemum vulgare John Thomas Howell 1949-7-4 24356 San Mateo n of Millbrae; Skyline Blvd. Comment
  CAS-BOT-BC257355  Leucanthemum vulgare Peter Rubtzoff 1988-5-12 9922 San Mateo San Bruno Mountain, Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road between Bog Trail and Saddle Trail junctions. Comment
  RSA800278  Leucanthemum vulgare Peter Rubtzoff 1988-5-12 9922 San Mateo San Bruno Mountains, ''Saddle'' area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road between Bog Trail and Saddle Trail junctions. Comment
  UCD61319  Leymus californicus G. L. Stebbins Jr. 1941-4-26 3089 San Mateo 1 mile Northeast of La Honda, along San Gregorio Creek. Comment
  UCD61335  Leymus californicus P. B. Kennedy 1916-5-7 San Mateo Crocker Estate, Burlingame. Comment
  CAS-BOT-BC272184  Leymus triticoides Elizabeth McClintock; Paul Reeberg 1988-4-14 s.n. San Mateo Lower Guadalupe Parkway north of school, San Bruno Mountains Comment
  CAS-BOT-BC436530  Ligusticum apiifolium Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain, below parking lot Comment
  UC306542  Ligusticum apiifolium A. D. E. Elmer June 1903 4966 San Mateo San Mateo Comment
  CAS-BOT-BC436529  Ligusticum apiifolium Elizabeth McClintock 1972-4-23 s.n. San Mateo San Bruno Mountain, above Fern Rock Comment
  CAS-BOT-BC173838  Lilaea scilloides Peter Rubtzoff 1975-5-21 7960 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC451676  Lilaea scilloides Margaret A. Barry 1938-5-14 s.n. San Mateo In Mud Lake on Coal Mine Ridge Comment
  CAS-BOT-BC130795  Lilium pardalinum W. S. Atkinson 1901-7-6 s.n. San Mateo Pescadero Creek near Harrison P.O. Comment
  CAS-BOT-BC389738  Lilium pardalinum J. Lovelle 1973-7-8 39 San Mateo Poscader [Pescadero] Cr. Comment
  CAS-BOT-BC238360  Limosella aquatica J. Clausen 1939-7-1 1744 San Mateo Ano Nuevo Point Comment
  UC908011  Linanthus androsaceus Herbert L. Mason 1935-5-21 8315 San Mateo s of La Honda (Alpine Road); Santa Cruz Mountains Comment
  RSA0004836  Linanthus croceus Alice Eastwood 1901-5-19 s.n. San Mateo Blenheim. Comment
  JEPS30889  Linanthus liniflorus J. H. Thomas 1958-5-13 7166 San Mateo about 3 mi sw San Mateo (along Skyline Blvd, 0.3 mi s of intersection of Skyline Blvd with Black Mt Rd) 304 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
  JROH5967  Linaria bipartita John Hunter Thomas 1982-5-25 20964 San Mateo Jasper Ridge Biological Preserve; roadside [Sand Hill Rd.] Comment
  SEINET5629646 Image available Linum congestum Unknown 1907-1 8572 San Mateo Above Crystal Springs Comment
  RSA187534  Linum usitatissimum John H. Thomas 1953-7-25 3517 B San Mateo Near San Mateo/Santa Cruz Co. border along Whitehouse Road. Comment
  UC1135272  Lithocarpus densiflorus C. M. Belshaw 1935-1-25 1472 San Mateo 2.5 mi nw Sierra Moreno Peak; Santa Cruz Quad. 609 Comment
  RSA15201  Lithocarpus densiflorus var. densiflorus Carl B. Wolf 1926-10-19 78 San Mateo La Honda Grade. Santa Cruz Mtns. Comment
  POM142561  Lithophragma affine subsp. affine C. F. Baker 1902-4-4 443 San Mateo Crystal Springs Lake Comment
  RSA159426  Lithophragma heterophyllum John H. Thomas 1961-5-14 9361 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  RSA101014  Lithophragma heterophyllum G. Oberlander 1950-4-23 851 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve Comment
  JROH1566  Lobularia maritima John Hunter Thomas 1983-2-21 21284 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC342468  Logfia gallica J. H. Thomas 1961-5-14 9388 San Mateo Southern part of San Francisco Watershed Reserve near Roth Estate 152 Comment
  UC1132202  Lolium multiflorum N. K. Carlson 1935-6-29 110 San Mateo 1 mi s Pescadero; Santa Cruz Quadrangle 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
  UCD164421  Lolium perenne Peter Rubtzoff 1977-6-21 9058 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, northwest of Fog Forest. Comment
  CAS-BOT-BC269174  Lolium temulentum No date on label s.n. San Mateo Colma Comment
  JROH270  Lomatium dasycarpum subsp. dasycarpum John Hunter Thomas 1987-4-30 24220 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH271  Lomatium dasycarpum subsp. dasycarpum John Hunter Thomas 1988-5-16 24461 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA452094  Lomatium dasycarpum subsp. dasycarpum Glenn A. Gorelick 1967-2-10 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  RSA63021  Lomatium dasycarpum subsp. dasycarpum L. S. Rose 1950-5-20 50137 San Mateo Emerald Lake region, hills w. of Redwood City. 244 Comment
  JROH272  Lomatium macrocarpum John H. Thomas 1956-4-7 5625 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM202458  Lomatium macrocarpum L. S. Rose 1933-5-17 33168 San Mateo Redwood City Comment
  CAS-BOT-BC240429  Lonicera hispidula W. R. Dudley 1895-9-15 s.n. San Mateo El Corte Madera, Canon [Canyon], Sta Cruz Mts Comment
  POM46739  Lonicera involucrata var. ledebourii C. F. Baker 1903-4-8 1918 San Mateo San Andreas Lake Comment
  SBBG53038  Lonicera involucrata var. ledebourii C. Bornstein 1994-6-7 San Mateo Gazos Crk Rd, 0.9 mi E of Hwy 1 22 Comment
  CAS-BOT-BC243965  Lonicera involucrata var. ledebourii Walter Knight 1964-9-14 834 San Mateo Ridge between Peak Mt. and Highway 1 Comment
  CAS-BOT-BC241415  Lonicera japonica Walter Knight; Irja Knight 1964-9-2 947 a San Mateo San Bruno Mountain. Crocker Avenue, an escape near Guadalupe Road Comment
  SD227810  Lotus corniculatus G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3742 San Mateo Portola Valley: Golden Hills Rd along Los Trancos Creek. 106 Comment
  UCR248348  Lotus corniculatus Peter Rubtzoff 1987-7-31 9821 San Mateo South San Francisco, Best Products Company parking lot on east side of Gellert Blvd. north of Westborough Blvd. intersection 84 Comment
  RSA18332  Lotus formosissimus Carl B. Wolf 1929-5-10 3703 San Mateo Coast at Pigeon Pt. South of Pescadero. Comment
  SEINET2062208 Image available Lotus formosissimus C. W. Sharsmith 1947-4-13 6758 San Mateo Near Pescadero Beach, vicinityof Pescadero Point. 50 Comment
  JEPS101841  Lotus junceus var. biolettii Dean W. Taylor 2000-4-25 17439 San Mateo along dirt road 1 mi W of North Peak, Montara Mountain 411 Comment
Read comments
Oct 18 2006
  HSC23905  Lotus scoparius Mary Katherine Wicksten 1971-6-21 85 San Mateo Huddart Park Comment
  UC1004320  Lotus tenuis W. A. Post Jul 1955 San Mateo Burlingame Comment
  HSC98283  Lotus unifoliolatus var. unifoliolatus L. S. Rose 1964-9-5 64071 San Mateo Emerald Lake W of Redwood City 244 Comment
  POM87746  Lotus wrangelianus L. R. Abrams 1902-5-11 2438 San Mateo Crystal Springs Lake. Comment
  UC1129221  Lotus wrangelianus H. S. Yates 1935-5-8 5207 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. 579 Comment
  POM276637  Lotus wrangelianus Lyman Benson 1930-5-1 2052 San Mateo Stanford University. 107 Comment
  CAS-BOT-BC60246  Lunaria annua E. W. Rust 1908-3-28 s.n. San Mateo Vicinity of Stanford University. Woodside Post Office. Comment
  POM10965  Lupinus affinis C. F. Baker 1902-04 1928 San Mateo Crystal Springs Lake. Comment
  SEINET5766860 Image available Lupinus affinis Dunn, Brown 1946-1 2542 San Mateo 3.7 miles northeast of La Honda on the southeast side of the Hwy; Sann Francisco Peninsula on Hwy from Woodside to la Honda Comment
  UC201919  Lupinus affinis A. D. E. Elmer April, 1903 5021 San Mateo Portola Comment
  SEINET10488359  Lupinus affinis Charles F. Baker 1902-4-6 Baker 473 San Mateo Crystal springs lake. Colonies frequent along banks and grassy slopes, Especially near borders of thickets Comment
  UCD105911  Lupinus albifrons Leslie Fenster 1964-3-22 11 San Mateo 3 miles up (south) Polhemus Road, Cahill Ridge. 152 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-BC195811  Lupinus albifrons var. albifrons Fred Hemphill 1973-4-8 719 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  POM10889  Lupinus albifrons var. albifrons C. F. Baker 1902-3-22 341 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC195789  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-21 48459 San Mateo Junction San Bruno Road 3, 0.8 miles south. Highway 5 Comment
  CAS-BOT-BC195794  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-22 48499 San Mateo Highway 5 - junction Woodside 6 mile road, 2.8 miles north Comment
  RSA134045  Lupinus albifrons var. albifrons W. R. Dudley 1894-4-21 s.n. San Mateo 3 miles above town, ravine of San Mateo Creek. Comment
  CAS-BOT-BC196128  Lupinus albifrons var. collinus A. D. E. Elmer 1903-5-1 4642 San Mateo San Bruno Hills Comment
  JEPS64928  Lupinus albifrons var. collinus Ivar Tidestrom 1894-3-22 San Mateo Comment
  SEINET5766825 Image available Lupinus albifrons var. collinus Lewis S. Rose 1931-1 s.n. San Mateo San Francisco Bay region Comment
  CAS-BOT-BC8521  Lupinus apricus C. P. Smith 1908-3-30 1374 San Mateo Stanford University, field back of Cedro Cottage Comment
  SBBG11114  Lupinus arboreus D. E. Breedlove 1961-6-18 599 San Mateo 3 mi S of rd to Half Moon Bay 365 Comment
  UC1129348  Lupinus arboreus G. E. Sindel 1935-8-15 333 San Mateo 1/2 mi n Palomares; Sata Cruz Quadrangle Comment
  UC1543208  Lupinus arboreus Donald G. Nelson 1938-7-28 580 San Mateo Moss Beach Comment
  UCD106613  Lupinus arboreus Eric Davidson 1971-6-28 330 San Mateo Half Moon Bay State Park. Comment
  UCR122975  Lupinus arboreus George K. Helmkamp, E. A. Helmkamp 2001-6-2 6797 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-BC196436  Lupinus arboreus J. Ed. McClellan; Bonnie McClellan 1976-6-7 s.n. San Mateo Jeep Fire Trail, Butano State Park Comment
  SEINET10488460  Lupinus arboreus Didley 1906-6-10 DIDLEY s.n. San Mateo Santa cruz mountain peninsula. By road, s cabil ridge Comment
  JROH2117  Lupinus bicolor John Hunter Thomas 1982-5-18 20943 San Mateo Jasper Ridge Biological Preserve, Stanford University; old road now partly plowed up, near main gate Comment
  UC155172  Lupinus bicolor A. A. Heller 1911-4-12 10250 San Mateo near Stanford University; near Stanford University Comment
  UC2049881  Lupinus bicolor H. W. Johansen 1955-4-9 29 San Mateo Jones Gulch, 5 miles S of La Honda. Comment
  UC81971  Lupinus bicolor C. F. Baker 1903-4-8 1921 San Mateo San Andreas Lake Comment
  UCD107185  Lupinus bicolor A. A. Heller 1911-4-12 10250 San Mateo near Stanford University. Comment
  CAS-BOT-BC215064  Lupinus chamissonis Charles Piper Smith 1948-4-23 48146 San Mateo Junction of SF County Jail Road, Highway 5 Comment
  SEINET10485250  Lupinus densiflorus var. palustris Charles Piper Smith 1947-4-25 Smith 47178 San Mateo Belmont, skyline, w of vanderlaan summit. Comment
  UC864963  Lupinus formosus Alice Eastwood, John Thomas Howell 1938-6-26 6075 San Mateo above La Honda; above La Honda Comment
  RSA414793  Lupinus formosus var. formosus E. A. Purer 1933-8-13 5426 San Mateo Near Belmont Comment
  SEINET12154566  Lupinus latifolius Unknown 1932-1 8979 San Mateo nr entrance to Gov Rolph Estate Comment
  JROH2122  Lupinus latifolius var. latifolius John H. Thomas 1977-4-29 18575 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5799  Lupinus latifolius var. latifolius John Rawlings 2016-4-4 1701 San Mateo Jasper Ridge Biological Preserve, Stanford University; Douglas Iris site 94 Comment
  POM276302  Lupinus pachylobus Lyman D. Benson 1935-4-27 6419 San Mateo La Honda Road, Santa Cruz Mts, east of Skyline Blvd., San Francisco Bay watershed. 457 Comment
  POM226876  Lupinus polycarpus L. R. Abrams 5094 San Mateo Menlo Heights Comment
  SEINET10870826  Lupinus vallicola subsp. apricus Charles Piper Smith 1946-3-26 Smith 46118 San Mateo Woodside, 2.3 m N. Comment
  SEINET10969725  Lupinus vallicola subsp. apricus LeRoy R. Abrams 1914-4-20 Abrams 5128 San Mateo Type locality: the type was collected by baker, no. 610, 1902, At the same Station as the present specimens. The collector of the present specimens was With mr. Baker when the original specimens were collected. Grassy fields at The confluence of los troncos and san franciscquito creeks. Comment
  UC82051  Lupinus variicolor Dr. E. B. Copeland 1903-6-3 3302 San Mateo Montara Point Comment
  UC865525  Lupinus variicolor Alice Eastwood and John Thomas Howell 1938-6-26 6076 San Mateo Kings Mt. Comment
  SEINET10489094  Lupinus variicolor Wheeler 1965-6-13 WHEELER UMO 104126 San Mateo San bruno mtn. Colma canyon. Comment
  SEINET10489105  Lupinus variicolor Elizabeth M. McClintock; Baki Kasapligil; Walter Knight; Irja Knight, Baki Kasapligil; Walter Knight; Irja Knight 1967-7-18 McClintock s.n. San Mateo San bruno mtn. In old quarry in colma canyon. Comment
  JROH4525  Luzula comosa var. comosa John H. Thomas 1967-4-20 12712 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15904  Luzula comosa var. comosa John Rawlings, Sara Timby, Toni Corelli 2016-4-23 1729 San Mateo Bean Hollow bluff trail, west of Hwy 1 south of Pescadero 8 Comment
  CAS-BOT-BC441265  Luzula macrantha Margaret A. Barry 1937-4-21 7 San Mateo Coal Mine Ridge Comment
  UC72371  Luzula subsessilis Harley P. Chandler 1901-3-15 805 San Mateo west of Colma Comment
  UC1099770  Luzula subsessilis Herbert L. Mason 1927-4-23 3686 San Mateo along road from La Honda to Pescadero Creek Comment
  UCD98223  Lychnis coronaria George Jack 1974-7-15 s.n. San Mateo San Mateo. Comment
  JROH3368  Lysimachia arvensis John Hunter Thomas 1982-7-8 21077 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  RSA0034072  Lythrum Peter Rubtzoff 1987-8-26 9837 San Mateo San Bruno Mountain, Saddle area on N side of Guadalupe Canyon. Parkway west of Radio Road junction; northwestern part of the area along old Guadalupe Road. Comment
  CAS-BOT-BC290600  Lythrum Peter Rubtzoff 1987-8-26 9837 San Mateo San Bruno Mountain, Saddle area on N side of Guadalupe Canyon. Parkway west of Radio Road junction; northwestern part of the area along old Guadalupe Road. Comment
  RSA0015076  Lythrum californicum L. R. Abrams 1901-09 2219 San Mateo Menlo Park, borders of Bay. Comment
  JROH2948  Lythrum hyssopifolia John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR122578  Lythrum hyssopifolia George K. Helmkamp, E. A. Helmkamp 2001-6-2 6794 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
  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
  RSA0011332  Lythrum hyssopifolia W. R. Dudley 1906-6-12 s.n. San Mateo W of Tripp s store, Woodside; Santa Cruz Mt Peninsula. Comment
  UC1191543  Lythrum hyssopifolia Malcolm A. Nobs, S. Galen Smith 1949-8-25 1549 San Mateo at Sharp Park Sharp Park Comment
  JROH2955  Lythrum tribracteatum John Hunter Thomas 1981-7-12 20708 San Mateo Jasper Ridge Biological Preserve, Stanford University; on old beach Comment
  CAS-BOT-BC343900  Madia elegans L. R. Abrams; I. L. Wiggins 1930-11-13 173 A San Mateo Hillside above Crystal Springs Lake Comment
  CAS-BOT-BC343898  Madia elegans Josephine D. Randall 1907-8-8 88 San Mateo Santa Cruz Peninsula. Near Stanford University Comment
  CAS-BOT-BC343907  Madia elegans Bruce G. Baldwin 1985-10-19 547 San Mateo 3.3 miles south of junction with California State Highway 92 along Canada Road Comment
  CAS-BOT-BC344495  Madia exigua James I. McMurphy 1907-5-19 s.n. San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC344496  Madia exigua Lewis S. Rose 1956-5-28 56083 San Mateo Emerald Lake. Hills w. of Redwood City 182 Comment
  JROH1059  Madia exigua John Hunter Thomas 1983-6-2 22333 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1062  Madia exigua John Hunter Thomas 1988-5-16 24463 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1063  Madia exigua John Hunter Thomas 1992-5-5 25219 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam and vicinity Comment
  RSA107074  Madia exigua K. C. Rose 1956-5-28 56083 San Mateo Emerald Lake hill W of Redwood City. 183 Comment
  JEPS112942  Madia gracilis Dean W. Taylor 1994-5-10 14275 San Mateo San Mateo Creek drainage; along Crystal Springs Road 0.3 mi East of junction of Tartan Trail 67 Comment
  JROH1067  Madia gracilis John H. Thomas 1958-5-10 7142 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM263770  Madia madioides L. S. Rose 1941-7-2 41287 San Mateo Kings Mountain 540 Comment
  JROH1102  Madia sativa John H. Thomas 1973-6-10 16812 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1112  Madia sativa John Hunter Thomas 1983-7-7 22828 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR256296  Madia sativa Peter Rubtzoff 1979-7-26 9300 San Mateo 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, San Bruno Mountains 213 Comment
  CAS-BOT-BC345128  Madia sativa Lewis S. Rose 1966-8-6 66078 San Mateo San Bruno Mountain. Head of Colma Canyon 213 Comment
  CAS-BOT-BC345138  Madia sativa George Oberlander 1950-6-3 1045 San Mateo San Francisco Watershed Reserve. On Sawyer Ridge Comment
  CAS-BOT-BC345141  Madia sativa W. R. Dudley 1909-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula. On hills from Ponds to Mussel Rock Comment
  POM49380  Madia sativa L. R. Abrams 1901-9-1 2227 San Mateo Menlo Park Comment
  RSA175256  Maianthemum dilatatum Robert F. Thorne, Percy C. Everett 1963-6-9 32216 San Mateo On Kamchatka Point near TV tower on San Bruno Mountain. 335 Comment
  JROH4698  Maianthemum racemosum John Hunter Thomas 1985-4-22 23544 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC512107  Maianthemum racemosum subsp. amplexicaule Fred Hemphill 1973-3-17 638 San Mateo San Carlos. Chaparral area north of Malabar Road and Melendy Drive 207 Comment
  CAS-BOT-BC512109  Maianthemum racemosum subsp. amplexicaule Fred Hemphill 1973-4-22 701 San Mateo San Carlos. Chaparral area north of Malabar Road and Melendy Drive 207 Comment
  RSA18378  Maianthemum racemosum subsp. amplexicaule Carl B. Wolf 1927-7-1 530 San Mateo Above Emerald Lake, back of Redwood City Comment
  CAS-BOT-BC512100  Maianthemum racemosum subsp. amplexicaule Everett O'Bannon; Nancy O'Bannon 1956-4-15 s.n. San Mateo Sawyer's Road, near Cystal Springs Lake above Burlingame and Millbrae Comment
  CHSC56088  Maianthemum stellatum Steven H. Roth 1980-4-4 16 San Mateo 200 m southeast of Portola Road at the Portola Valley Library, and 5 mi southwest of the north end of Stanford Linear Accelerator. Comment
  JROH4704  Maianthemum stellatum John H. Thomas 1969-4-12 14885 San Mateo Jasper Ridge Biological Preserve, Stanford University. Redwoods below dam Comment
  JROH4714  Maianthemum stellatum John Hunter Thomas 1985-4-22 23545 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC514166  Maianthemum stellatum George Oberlander 1950-3-18 513 San Mateo Pilarcites Canyon Comment
  RSA407375  Maianthemum stellatum Lyman Benson 1928-4-12 69 San Mateo Stanford University, Santa Cruz mountains, San Francisquito creek watershed; stream bank at Pest House 30 Comment
  SEINET12044094  Maianthemum stellatum W. R. Dudley 1902-1 s.n. San Mateo by Alpine Road on Corte de Madera Creek, Santa Cruz Peninsula Comment
  CAS-BOT-BC203907  Malacothamnus aboriginum George Oberlander 1949-7-10 258 San Mateo San Francisco Watershed Reserve. South end of Sawyer Ridge Comment
  CAS-BOT-BC206683  Malva assurgentiflora John H. Thomas 1967-5-2 12734 San Mateo Colma, near Hillside Blvd. at Cypress Lawn Cemetery Comment
  JROH2964  Malva nicaeensis John H. Thomas 1966-4-24 11576 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2970  Malva nicaeensis John Hunter Thomas 1983-5-23 22240 B San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack side & low-flow crossing Comment
  CHSC1037  Malva sylvestris L. Lancelot 1930-5-3 San Mateo Moss Beach. Comment
  UCR51652  Marah fabacea R. Ascanio 1988-4-17 s.n. San Mateo E on Gazo Creek Road off Hwy 1, c. 2 mi. north of Ano Nuevo State Reserve 85 Comment
  JROH617  Matricaria discoidea John H. Thomas 1971-4-21 15767 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB17213  Matricaria discoidea Schulte, John 1963-4-28 San Mateo On top of Jasper Ridge, 3 miles southwest of Stanford campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC422679  Meconella californica A. D. E. Elmer 1903-4-1 4499 San Mateo San Mateo toward Crystal Springs Lake Comment
  CAS-BOT-BC422677  Meconella californica W. R. Dudley 1894-3-26 s.n. San Mateo Santa Cruz Peninsula. By road San Mateo to Crystal Springs Res. Comment
  CAS-BOT-BC422683  Meconella californica Miss E. Cannon 1898-3-26 s.n. San Mateo South San Francisco Comment
  JROH2171  Medicago polymorpha John Hunter Thomas 1983-5-23 22243 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC157959  Medicago polymorpha var. brevispina Peter Rubtzoff 1977-4-16 8952 A San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Along west side of East Fork Colma Creek canyon Comment
  CAS-BOT-BC157964  Medicago polymorpha var. brevispina Peter Rubtzoff 1978-7-8 9236 San Mateo San Bruno Mountains. Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction Comment
  CAS-BOT-BC271159  Melica John H. Thomas 1965-4-29 10631 B San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC269446  Melica californica Phillip C. Wheeler 1965-5-18 s.n. San Mateo San Bruno Mountain. Base of the mountain near Olivet Cemetery Comment
  UC1738811  Melica californica var. californica Dean W. Taylor 1988-3-30 9489 San Mateo 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 176 Comment
  UCD87869  Melica imperfecta P. B. Kennedy 1916-4-1 s.n. San Mateo Daly City, Colma Canyon, S San Francisco. Comment
  CAS-BOT-BC264245  Melica torreyana John H. Thomas 1971-5-2 15850 San Mateo Near intersection of Canada Road and Edgewood Road, about three miles westward from Redwood City 152 Comment
  CAS-BOT-BC264246  Melica torreyana John H. Thomas 1965-4-29 10620 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH2184  Melilotus indicus John H. Thomas 1970-7-5 15674 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC2049893  Melilotus indicus H. W. Johansen 1955-4-23 80 San Mateo Crystal Springs Road, 2 miles W of San Mateo Comment
  UC311106  Melilotus indicus A. D. E. Elmer June, 1903 4278 San Mateo Crystal Springs Lake Comment
  JROH5933  Melilotus indicus M. Ray 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the Whiskey Hill Gate Comment
  UCSC007763  Melilotus indicus Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  UC583160  Mentha canadensis Lewis S. Rose 1936-9-13 36730 San Mateo Granada 1 Comment
  JROH2804  Mentha pulegium M. N. Paulson 1914-10-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1244714  Mentha pulegium John H. Thomas 1959-8-22 8079 San Mateo about 5 mi sw Palo Alto (Jasper Ridge); Jasper Ridge 152 Comment
  JEPS22980  Mercurialis annua V. Duran 1933-3-20 San Mateo near Montara Mountain Comment
  POM177458  Mercurialis annua L. R. Abrams, I. L. Wiggins 1930-11-13 179 San Mateo 3 miles S of Rockaway Beach (Pedro Valley) Comment
  UCD148357  Mercurialis annua T. C. Fuller 1960-6-23 4542 San Mateo east fence line, Sanchez Adobe House, south side of Linda Mar Blvd., Pedro Valley. Comment
  UC1191375  Mesembryanthemum nodiflorum Malcolm A. Nobs 1948-12-20 721 San Mateo Redwood City, yacht harbor Redwood City Comment
  CAS-BOT-BC428901  Micranthes californica Margaret A. Barry 1938-3-13 233 San Mateo On Coal Mine Ridge Comment
  JROH3905  Micranthes californica D. D. Davis 1903-3-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD69082  Micropus californicus P. Rodriguez-Rojo 1997-5-31 San Mateo Jaspen Ridge. Serpentine annual grasslands. UTM: 10SEM4168 155 Comment
  CAS-BOT-BC348572  Micropus californicus var. californicus Ned Cahill 1974-4-18 134 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH1117  Micropus californicus var. californicus Hester Bavis 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1122  Micropus californicus var. californicus John H. Thomas 1963-5-12 10085 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC77531  Microseris bigelovii K. L. Chambers 1984-6-14 5141 San Mateo Pescadero Beach State Park, just S of mouth of Pescadero Creek, Hwy. 1 Comment
  CAS-BOT-BC349025  Microseris douglasii subsp. douglasii A. D. E. Elmer 1903-5-1 4721 San Mateo Crystal Springs Lake Comment
  POM87986  Microseris douglasii subsp. douglasii L. R. Abrams 1902-5-4 2418 San Mateo Woodside. Comment
  RSA184978  Microseris douglasii subsp. douglasii L. S. Rose 1966-5-2 66037 -A San Mateo Emerald Lake, west of Redwood City. 91 Comment
  CAS-BOT-BC349035  Microseris douglasii subsp. douglasii Lewis S. Rose 1956-5-28 56079 A San Mateo Skyline Blvd w. of San Mateo 182 Comment
  CAS-BOT-BC349148  Microseris douglasii subsp. tenella LeRoy Abrams 1902-5-4 2423 San Mateo Woodside Comment
  CAS-BOT-BC349142  Microseris douglasii subsp. tenella Kenton L. Chambers 1953-3-28 431 San Mateo Bayshore Hwy. 1/2 mi. s. of junction with Harbor Blvd., Redwood City Comment
  RSA0001424  Microseris leucocarpha C. F. Baker 1902-5-4 808 San Mateo Woodside. Comment
  SEINET12269792  Mimulus aurantiacus L. K. Henry 1956-1 s.n. San Mateo along Pacific Ocean at Pigeon Point Lighthouse on Rt. 1 Comment
  JROH4068  Mimulus aurantiacus var. aurantiacus W. R. Dudley 1893-7-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  JROH4073  Mimulus aurantiacus var. aurantiacus John H. Thomas 1974-5-29 17405 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4077  Mimulus aurantiacus var. aurantiacus John Hunter Thomas 1980-6-5 19998 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA1950  Mimulus aurantiacus var. aurantiacus Carl B. Wolf 1930-11-5 1804 San Mateo one-half way up east side of the La Honda Grade, Santa Cruz Mtns. 305 Comment
  UC103734  Mimulus grandis C. F. Baker 1902-5-4 759 San Mateo Woodside Comment
  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
  JROH1700  Minuartia douglasii John H. Thomas 1971-4-10 15752 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1701  Minuartia douglasii John H. Thomas 1971-4-10 15752 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET11943608  Minuartia douglasii L. S. Rose 1937-1 37249 San Mateo Burlingame hills 91 Comment
  CAS-BOT-BC214082  Monardella villosa Cherie Wetzel 1969-6-20 887 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC214177  Monardella villosa Ned Cahill 1974-7-14 357 San Mateo Near the interesection of Canada and Edgewood Roads about 3 mi westward from Redwood City Comment
  CAS-BOT-BC214074  Monardella villosa Mrs. E. C. Sutliffe 1934-7-12 s.n. San Mateo Ocean Shore Road Comment
  UC203048 Image available Monardella villosa subsp. franciscana A. D. E. Elmer July, 1903 4766 San Mateo San Pedro, San Mateo Co. Comment
  SEINET10582381  Monardella villosa subsp. franciscana A. Graff 1993-7-13 Graff 188 San Mateo Devil's Slide, in arroyos on inland side of Hwy. 1. Mostly past bloom. Coastal scrub. Comment
  JEPS127892  Monardella villosa subsp. villosa Adam C. Schneider with C. Matt Guilliams and Will Freyman 2013-6-24 306 San Mateo Crystal Springs Reservoir Comment
  JROH2840  Monardella villosa subsp. villosa John H. Thomas 1973-6-10 16822 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2841  Monardella villosa subsp. villosa Raymond R. White 1974-5-30 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2832  Monardella villosa subsp. villosa L. R. Abrams 1914-6-2 5112 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville ridge Comment
  JROH2833  Monardella villosa subsp. villosa John H. Thomas 1961-6-7 9529 San Mateo Jasper Ridge Biological Preserve, Stanford University; just above Searsville Lake Comment
  CAS-BOT-BC327789  Monolopia gracilens Otto Holm 1930-5-9 s.n. San Mateo Berenda Farm, near Redwood City Comment
  CAS-BOT-BC327794  Monolopia gracilens W. R. Dudley 1893-5-27 s.n. San Mateo By La Honda road Comment
  CAS-BOT-BC444953  Montia fontana W. R. Dudley 1900-3-16 s.n. San Mateo Santa Cruz Peninsula. North of house just below King's Mt. house. Comment
  UCD163600  Morella californica Peter Rubtzoff 1980-12-11 9634 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
  SJSU1081  Muilla maritima C. W. Sharsmith 1951-4-6 5823 San Mateo Woodside Hills c. 3 mi W of Woodside 182 Comment
  CAS-BOT-BC508577  Muilla maritima John H. Thomas 1969-4-24 14910 San Mateo Near Canada College, Redwood City, near Farm Hill Drive 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
  CAS-BOT-BC101769  Myrica californica W. R. Dudley 1894-9-22 s.n. San Mateo Preston's Ravine, Portola Valley Comment
  RSA15200  Myrica californica Carl B. Wolf 1926-10-19 77 San Mateo West of summit of La Honda Grade, Santa Cruz Mountains. Comment
  JROH2692  Myriophyllum aquaticum John H. Thomas 1976-5-19 18143 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2697  Myriophyllum aquaticum John Hunter Thomas 1987-5-26 24321 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Comment
  JROH2700  Myriophyllum aquaticum John Hunter Thomas 1989-6-6 24758 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2701  Myriophyllum aquaticum M. Whitley 1990-4-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By the floats in Searsville Lake. Comment
  CDA5310  Myriophyllum spicatum subsp. spicatum G. D. Barbe, Tom Palmer, M. Keffer, J. Reppas 1978-11-8 2471 San Mateo East shore of Lower Crystal Springs Reservoir, 0.8 km (0.5 mile) northwest of San Mateo Creek dam. 0 Comment
  CAS-BOT-BC260021  Nassella lepida W. R. Dudley 1900-3-17 s.n. San Mateo By road half way up S slope of Montara Mountain Comment
  CAS-BOT-BC260233  Nassella pulchra A. D. E. Elmer 1903-6-1 4712 San Mateo Crystal Springs Lake Comment
  POM199067  Nassella pulchra A. D. E. Elmer 1903-06 4712 San Mateo Crystal Springs Lake. Comment
  POM295476  Nassella pulchra Lyman Benson 1930-4-17 2080 San Mateo Stanford University. 152 Comment
  JEPS82912  Navarretia heterodoxa Roy E. Buck and Randall A. Morgan 1983-6-7 336 San Mateo in triangle of Edgewood and Canada Rds and Hwy. I-280 (s of small watercourse); San Francisco Watershed Reserve 137 Comment
  JROH3204  Navarretia heterodoxa John Hunter Thomas 1983-6-29 22705 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA206599  Navarretia heterodoxa Lewis S. Rose; 1941-6-12 41269 San Mateo W of Redwood City, Emerald Lake 120.0 Comment
  UC762302  Navarretia heterodoxa R. F. Hoover 1941-5-20 5111 San Mateo Redwood City hills Redwood City Comment
  RSA95822  Navarretia heterodoxa L. S. Rose 1953-6-29 53044 San Mateo Emerald Lake, hills w. of Redwood City 91 Comment
  SJSU42  Navarretia mellita C. D. Duncan 1925-7-13 San Mateo Mud Lakes, summit of Coal Mine Ridge above Corte Madera Cr Comment
  POM65123  Navarretia squarrosa C. F. Baker 1903-6-30 3360 San Mateo Pilarcitos Comment
  POM65127  Navarretia squarrosa Copeland 1903-6-5 3323 San Mateo Montara Point. Comment
  UCSC000592  Navarretia squarrosa N. K. Carlson 1935-6-29 106 San Mateo 1 mile S. of Pescadero Pescadero 91 Comment
  JROH2756  Nemophila John Hunter Thomas 1992-4-23 25150 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Rattlesnake Rocks and along trail to redwoods Comment
  JROH2738  Nemophila menziesii var. menziesii John H. Thomas 1976-4-3 18079 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM65254  Nemophila menziesii var. menziesii C. F. Baker 1902-4-12 500 San Mateo La Honda. Comment
  CAS-BOT-BC219485  Nemophila parviflora L. Constance 1938-5-16 2241 San Mateo Near Crystal Springs Lake, 5 miles southwest of San Mateo 121 Comment
  JROH5550  Nemophila parviflora var. parviflora John Rawlings 2013-4-23 1141 San Mateo Jasper Ridge Biological Preserve, Stanford University; above creek upstream from bridge on Trail 11 139 Comment
  JROH3706  Oemleria cerasiformis John H. Thomas 1965-2-22 10552 San Mateo Jasper Ridge Biological Preserve, Stanford University. Above edge of Searsville Lake Comment
  JROH3716  Oemleria cerasiformis Carol Zabel 1989-3-5 5 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2. Comment
  RSA195542  Oemleria cerasiformis John H. Thomas 1967-2-9 12400 San Mateo San Bruno. Near intersection of Skyline Blvd. and Berkshire Dr. Comment
  RSA451813  Oemleria cerasiformis L. S. Rose 1937-3-20 37004 San Mateo Moist Hills, Skyline Blvd. W. of Tanforan. 183 Comment
  UC1128077  Oemleria cerasiformis T. Tyrrell 1928-9-26 8 San Mateo 2 mi s San Gregorio; Santa Cruz Quad. 91 Comment
  CAS-BOT-BC140444  Oemleria cerasiformis Mrs. Geo. H. C. Meyer 1915-3-1 s.n. San Mateo Easton Comment
  JROH284  Oenanthe sarmentosa L. R. Abrams 1919-8-20 7349 San Mateo Jasper Ridge Biological Preserve, Stanford University; head of Searsville Lake Comment
  SEINET12189806  Oenothera elata Unknown 1933-1 10375 San Mateo Boden Station, South san Francisco Comment
  HSC23991  Oenothera elata subsp. hookeri Mary Katherine Wicksten 1971-6-27 125 San Mateo Princeton, by Hwy. 1 Comment
  RSA18444  Oenothera elata subsp. hookeri Carl B. Wolf 1927-6-29 564 San Mateo 3 miles south of San Gregorio. Comment
  JEPS19482  Orobanche californica subsp. californica Herbert L. Mason 1927-7-28 3983 San Mateo Pigeon Point. Comment
  JEPS26313  Orobanche californica subsp. californica Wayne Roderick 1961-8-20 San Mateo Bean Hollow State Beach; below south entrance of San Mateo State Park, about 2 miles south of Pescadero turn-off. Comment
  SEINET199760  Orobanche californica subsp. californica Herbert L. Mason 1927-7-28 3983 San Mateo Pigeon Point Comment
  CAS-BOT-BC499693  Orobanche californica subsp. californica W. A. Setchell 1909-8-29 s.n. San Mateo Farrallone City Comment
  SJSU15793  Orobanche fasciculata Toni Corelli 2010-7-8 642 San Mateo Bean Hollow State Beach along Arroyo de los Frijoles Trail 10 Comment
  CAS-BOT-BC500166  Orobanche fasciculata David D. Keck 1932-6-18 1982 San Mateo Skyline Blvd., at Langley Hill (SW of Stanford Uniersity) 600 Comment
  CAS-BOT-BC238395  Orthocarpus James McMurphy 1909-5-25 s.n. San Mateo San Mateo Canyon Comment
  RSA155563  Orthocarpus densiflorus L. S. Rose 1961-4-5 61035 San Mateo San Bruno Mountains. 366 Comment
  RSA184905  Orthocarpus erianthus var. roseus L. S. Rose 1965-3-25 65010 San Mateo San Bruno Mountains, north end. 122 Comment
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Mar 28 2016
  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
  CHSC1970  Osmorhiza chilensis A. Goekler 1929-5-11 San Mateo Moss Beach. Comment
  POM133304  Osmorhiza purpurea A. D. E. Elmer 1900-05 1982 San Mateo La Honda Comment
  POM139481  Oxalis oregana C. F. Baker 1902-3-18 325 San Mateo King's Mountain Comment
  UC311197  Oxalis oregana A. D. E. Elmer March, 1903 4532 San Mateo Portola Comment
  UC762243  Oxalis oregana R. F. Hoover 1939-3-3 3896 San Mateo above Portola (on La Honda rd) Comment
  UCSB16637  Oxalis oregana Schulte, John 1963-4-14 San Mateo 2 miles by air west of Portola Valley 182 Comment
  JEPS121492  Oxalis pes-caprae Adam C. Schneider with C. Matt Guilliams 2013-3-9 41 San Mateo Crystal Springs Reservoir, Northern part of western margin of San Francisco Public Utilities Commission land. Comment
  UCR113570  Parietaria judaica Mitch Provance 1999-1-18 1745 San Mateo Daly City, west side of Mission St, c. 0.25 miles south of the San Mateo/ San Francisco County line 122 Comment
  JROH5345  Paspalum distichum John H. Thomas 1964-11-5 10521 San Mateo Jasper Ridge Biological Preserve, Stanford University. East end of Searsville Dam Comment
  JROH5551  Pectocarya pusilla John Rawlings 2013-4-16 1126 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2 extension about 120 meters northwest from trail marker, east side of trail 136 Comment
  JROH4118  Pedicularis densiflora John Hunter Thomas 1982-1-3 20794 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG32290  Pedicularis densiflora L. S. Rose 1964-3-23 San Mateo Emerald Lake, W of Redwood City 121 Comment
  JROH4095  Pedicularis densiflora D. D. Davis 1903-2-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  JROH4108  Pedicularis densiflora John H. Thomas 1961-4-8 9068 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Searsville Lake end of ridge Comment
  RSA14207  Pedicularis densiflora Carl B. Wolf 1927-1-24 190 San Mateo 1/2 way up east slope of La Honda Grade, Santa Cruz Mtns. Comment
  SEINET12270441  Pedicularis densiflora Unknown 1930-1 7320 San Mateo Jasper Ridge Comment
  JEPS109941 Image available Pedicularis dudleyi Dean W. Taylor 2004-4-19 19058 San Mateo Portola State Park, roadcut just north of the park boundary sign, about 100 meters S of junction of Old Page Mill Road with Portola State Park road 182 Comment
  SEINET12182596  Pelargonium L. K. Henry 1956-1 s.n. San Mateo along Pacific Ocean at Pigeon Point Lighthouse on Rt 1 Comment
  CAS-BOT-BC207021  Pelargonium vitifolium L. R. Abrams; I. L. Wiggins 1939-6-3 437 San Mateo 2 miles north of Pigeon Point Lighthouse Comment
  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
  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
  SJSU14193  Pentachaeta bellidiflora Toni Corelli 1989-4-2 201 San Mateo watershed triangle between Edgewood & Canada Rds 170 Comment
  POM88667  Pentachaeta exilis L. R. Abrams 1901-4-20 1533 San Mateo Mint [difficult to read] Bells Road. 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
  CAS-BOT-BC423362  Peritoma serrulata Mrs. Brandegee No date on label s.n. San Mateo Montera [Montara] Comment
  SJSU7873  Persea americana C. A. Staicer 1976-11-24 San Mateo 91 Inglewood Lane, Atherton Comment
  CAS-BOT-BC413608  Persicaria amphibia A. D. E. Elmer 1903-7-1 4650 San Mateo San Pedro Comment
  CAS-BOT-BC418849  Persicaria hydropiperoides Roxana S. Ferris 1920-9-3 2047 San Mateo Santa Cruz Mountain Peninsula. 2nd Mud Lake, Coal Mine Ridge Comment
  JROH3283  Persicaria punctata John H. Thomas 1976-10-16 18414 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along or near San Francisquito Creek from the low flow crossing to the vicinity of the old fireplace ruins downstream. Comment
  JROH3282  Persicaria punctata Roxana S. Ferris 1924-10-6 4093 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake in Portola Highway. Comment
  CAS-BOT-BC330251  Petasites frigidus var. palmatus John Thomas Howell 1924-2-23 269 San Mateo King Mountain Comment
  CDA8458  Petasites frigidus var. palmatus T. C. Fuller 1960-4-2 4084 San Mateo Alpine Road, 0.8 mile east of Pescadero Road, 2.8 miles southeast of La Honda. 0 Comment
  RSA10999  Petasites palmatus C. B. Wolf 1928-3-14 1536 San Mateo La Honda Grade, Santa Cruz Mountains. Comment
  RSA15277  Petasites palmatus C. B. Wolf 1927-4-3 243 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  POM289352  Phacelia californica Lyman Benson 1930-4-6 2038 San Mateo Spring Valley, Crystal Springs Lake, San Lorenzo Mt. Range. 183 Comment
  UC1301150  Phacelia californica Helen K. Sharsmith 1963-2-16 5141 San Mateo lower slopes of mt. above Daly City; San Francisco Bay Region, San Bruno Mountain 106 Comment
  OBI48680  Phacelia distans Lewis S. Rose 1939-4-13 39065 San Mateo San Mateo Cyn near Crystal Springs lake 61 Comment
  OBI48681  Phacelia divaricata Lewis S. Rose 1937-4-24 37231 San Mateo Emerald Lake, W of Redwood City 107 Comment
  HSC13719  Phacelia malvifolia L. S. Rose 1965-5-3 65057 San Mateo San Bruno Mountain, Colma Canyon 61 Comment
  POM289350  Phacelia nemoralis subsp. nemoralis Lyman Benson 1930-5-26 2129 San Mateo Stanford University. Lake Searsville. 152 Comment
  JROH5358  Phalaris aquatica John Hunter Thomas 1979-5-22 19577 San Mateo Jasper Ridge Biological Preserve, Stanford University. In parking lot. Comment
  RSA128340  Phalaris californica P. H. Raven 1950-6-3 2275 San Mateo along dry rivulet flowing into San Andrews Lake, Crystal Springs Lake 122 Comment
  UCD88577  Phalaris californica P. B. Kennedy 1928-5-2 s.n. San Mateo E of Daly City. Comment
  RSA17945  Phalaris minor C. B. Wolf, Le Roy Abrams 1927-6-4 s.n. San Mateo San Gregorio Comment
  RSA22129  Phalaris minor J. T. Howell 1937-7-5 13099 San Mateo Redwood City, along Bayshore Highway Comment
  CAS-BOT-BC222503  Pholistoma auritum var. auritum Philip Wheeler 1965-6-16 s.n. San Mateo San Bruno Mountain. Gladys Canyon in Brisbane Comment
  SD49975  Phoradendron leucarpum subsp. tomentosum John H. Thomas 1959-8-22 8080 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto 152 Comment
  JROH4292  Phoradendron serotinum subsp. tomentosum John H. Thomas 1972-4-18 16150 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4293  Phoradendron serotinum subsp. tomentosum John H. Thomas 1975-1-14 17674 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU4276  Phyllospadix scouleri E. B. Woon 1957-5-31 227 San Mateo Pigeon Point Comment
  JROH3726  Physocarpus capitatus John H. Thomas 1977-4-19 18535 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek along low flow crossing Comment
  UCD23296  Physocarpus capitatus Alan T. Whittemore 1976-5-29 116 San Mateo San Francisco Fish and Game Refuge. East side of Lower Crystal Springs Lake, on Sawyer's Camp Road, between L. San Andreas and Crystal Springs Lake. 100 Comment
  CAS-BOT-BC142181  Physocarpus capitatus W. R. Dudley 1895-6-14 s.n. San Mateo Along San Francisquito Creek near St. Michaels Church - Santa Cruz Mountain Peninsula Comment
  SD37695  Physocarpus capitatus Edith A. Purer 1933-5-9 3604 San Mateo Stevens Creek Comment
  CAS-BOT-BC202258  Pickeringia montana var. montana 1893-5-23 s.n. San Mateo Mountain above Woodside Comment
  RSA18288  Pickeringia montana var. montana Carl B. Wolf 429 San Mateo East slope of Kings Mt. Comment
  UCR253351  Picris echioides A. C. Sanders 2014-8-3 41232 San Mateo San Francisco Bay, South San Francisco, San Francisco Bay Trail in vicinity of S Airport Drive, Utah Ave., and Haskins Way, between Hwy 101 and San Francisco Bay 6 Comment
  JEPS48202  Pinus radiata W. L. Jepson 1910-8-18 4166 San Mateo Ano Nuevo Creek Comment
  CAS-BOT-BC158326  Piperia Peter Rubtzoff; Randall Morgan 1987-8-28 9847 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC137318  Piperia elegans Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  JROH4767  Piperia elegans subsp. elegans Linda Knox 1969-8-10 1 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5802  Piperia transversa John Rawlings, Ann Lambrecht, Diane Renshaw 2016-7-12 1894 San Mateo Jasper Ridge Biological Preserve, Stanford University. Rd E through chaparral 135 Comment
  CAS-BOT-BC228140  Plagiobothrys chorisianus Alice Eastwood 1922-5-30 11336 San Mateo Crystal Springs Lake Comment
  POM64748  Plagiobothrys chorisianus C. F. Baker 1902-3-30 429 San Mateo Crystal Springs Lake Comment
  RSA22135  Plagiobothrys chorisianus Alice Eastwood, Howell 1938-6-26 s.n. San Mateo Pigeon Point. Comment
  UC200768  Plagiobothrys chorisianus C. F. Baker 1902-3-30 429 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC228116  Plagiobothrys chorisianus Daniel Cohen 1953-5-9 77 San Mateo Top of sea cliff at Pescadero Comment
  RSA128816  Plagiobothrys chorisianus Roxana S. Ferris 1920-4-23 s.n. San Mateo Santa Cruz Mountain peninsula, on abandoned road above north fork of Peters Creek 640 Comment
  RSA216143  Plagiobothrys chorisianus P. H. Raven 1954-5-16 s.n. San Mateo North of mouth of Lobos Creek, Presidio Comment
  CAS-BOT-BC228156  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1896-4-17 s.n. San Mateo The Santa Cruz Mountain Peninsula. Pasture near Pebble Beach, Pescadero Comment
  SD67294  Plagiobothrys chorisianus var. chorisianus Darley F. Howe 1967-4-13 4342 San Mateo Pebble Beach Comment
  CAS-BOT-BC228155  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1893-5-27 s.n. San Mateo The Santa Cruz Mountain Peninsula. Between King's Mountain and La Honda, below Hayman's Ranch Comment
  CAS-BOT-BC228161  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1908-6-19 s.n. San Mateo The Santa Cruz Mountain Peninsula. W of Jersey Farm Dairy Comment
  CAS-BOT-BC228173  Plagiobothrys chorisianus var. hickmanii L. R. Abrams 1909-8-2 4248 San Mateo The Santa Cruz Peninsula. Pebble Beach, Pescadero Comment
  JROH1409  Plagiobothrys chorisianus var. hickmanii John H. Thomas 1967-4-28 12726 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1419  Plagiobothrys chorisianus var. hickmanii John Hunter Thomas 1983-5-3 21878 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
  JROH1429  Plagiobothrys nothofulvus John H. Thomas 1976-4-19 18087 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH1435  Plagiobothrys tenellus P. R. Hickborn 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  UC203055  Plantago erecta A. D. E. Elmer Apr 1903 4795 San Mateo San Bruno Hills Comment
  UCD124478  Plantago erecta Lewis S. Rose 1965-5-3 65056 San Mateo San Bruno Mountain, north end. 182 Comment
  UCSC007768  Plantago lanceolata Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  UC888462  Plantago maritima var. californica Lewis S. Rose 1937-9-5 37645 San Mateo Mussel Rocks 60 Comment
  JEPS24268  Plantago subnuda J. H. Thomas 1959-7-8 8016 San Mateo Pescadero Beach Comment
  JEPS4905  Plantago subnuda G. Thomas Robbins 1953-8-29 3616 San Mateo 1.5-2.0 mi s San Francisco City and County line (along State Highway 1) Comment
  LA206262  Platystemon californicus David D. Keck; 1932-5-6 1473 San Mateo Burlingame, N city limits Comment
  JROH4249  Plectritis macrocera John H. Thomas 1969-4-20 14896 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4251  Plectritis macrocera H. J. Dengler 1971-4-30 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. On serpentine grassland E. of Searsville Rocks in gully Comment
  CAS-BOT-BC260960  Pleuropogon californicus var. californicus J. I. McMurphy 1906-5-8 s.n. San Mateo Pond near head of Crystal Sprins Laks on road from Woodside to Byrne's Store, Santa Cruz Mountain Peninsula Comment
  UCD92189  Poa August L. Hormay 1932-5-29 s.n. San Mateo Bay shore, San Bruno. Comment
  HSC10627  Poa annua P. A. Murphy 1965-4-12 1 San Mateo Half Moon Bay. Comment
  CAS-BOT-BC254543  Poa douglasii Elizabeth McClintock 1978-4-6 s.n. San Mateo Pacifica Comment
  UCSC007769  Poa douglasii Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  RSA135745  Poa kelloggii Roxana S. Ferris 1920-4-26 1963 San Mateo Near mouth of Canon of Pescadero Creek 244 Comment
  POM204948  Poa secunda E. B. Copeland 1903-4-20 1920 San Mateo San Andreas Lake Comment
  CAS-BOT-BC243113  Poa secunda subsp. secunda Ned Cahill 1974-5-30 310 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles W from Redwood City Comment
  CAS-BOT-BC243120  Poa secunda subsp. secunda W. R. Dudley 1900-3-16 s.n. San Mateo By Redwood stage road Comment
  CAS-BOT-BC243127  Poa secunda subsp. secunda George Thomas Oberlander 1950-4-16 653 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  JROH5425  Poa secunda subsp. secunda John Hunter Thomas 1967-6-1 12958 San Mateo Jasper Ridge Biological Preserve, Stanford University; rocky north slope, Searsville Ridge Comment
  CAS-BOT-BC244252  Poa unilateralis Dr. E. B. Copeland 1903-6-17 3306 San Mateo Montara Point Comment
  JEPS101813  Poa unilateralis Dean W. Taylor 2000-4-25 17440 San Mateo along dirt road 1 mi W of North Peak, Montara Mountain 411 Comment
  SJSU16026  Poa unilateralis subsp. unilateralis John Rawlings, Toni Corelli 2016-5-13 1789 San Mateo Vallemar Bluff, Moss Beach. USGS Montara Mountain OE W 7.5 Minute (1:24,000 Scale) Topographic Map. 11 Comment
  SEINET5554721  Poaceae E. A. Bernays 1985-1 s.n. San Mateo Half Moon Bay. Comment
  CAS-BOT-BC110697  Poaceae J. H. Thomas 1962-4-6 9907 San Mateo Near Palo Alto airport. Comment
  JROH2862  Pogogyne serpylloides John Hunter Thomas 1981-4-23 20493 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1710  Polycarpon tetraphyllum var. tetraphyllum John Hunter Thomas 1983-7-7 22827 San Mateo Jasper Ridge Biological Preserve, Stanford University; old beach area Comment
  CAS-BOT-BC166771  Polygonum arenastrum Peter Rubtzoff 1977-4-16 8953 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC414107  Polygonum aviculare subsp. aviculare Elizabeth McClintock; Paul Reeberg 1989-8-19 s.n. San Mateo San Bruno Mountains. Reservoir Hill Comment
  JROH3262  Polygonum aviculare subsp. depressum John Hunter Thomas 1980-11-27 20187 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta. Comment
  CAS-BOT-BC109236  Polygonum paronychia John H. Thomas 1954-6-11 4285 San Mateo About 0.25 mile north of Pigeon Point Light House along low coastal bluffs. Comment
  POM181651  Polygonum paronychia H. F. Copeland 1928-2-26 987 San Mateo Montara Comment
  RSA18362  Polygonum paronychia Carl B. Wolf 1929-5-25 3726 San Mateo Pebble Beach, S of Pescadero Comment
  UC1187045  Polygonum paronychia V. F. Hesse 1956-11-15 2137 San Mateo coastal bluff between Pigeon Point and Pebble Beach 6 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
  UC1936265  Polypodium Robert Price 1983-1-10 627 San Mateo Pulgas Ridge, just ENE of Crystal Springs Reservoir, ca. 1/8 mi ENE of entry gate on Bunker Hill Ave. Comment
  JROH82  Polypodium californicum John H. Thomas 1977-4-2 18510 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH5645  Polypogon interruptus John Rawlings 2014-5-28 1249 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Up-stream edge of low flow crossing of San Francisquito Creek. 81 Comment
  CAS-BOT-BC237347  Polypogon monspeliensis Margaret A. Barry 1937-6-22 176 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC237349  Polypogon monspeliensis L. R. Abrams; I. L. Wiggins 1939-6-3 432 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC237356  Polypogon monspeliensis Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mile N of Pigeon Point and about 39 miles S of San Francisco 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
  JROH5453  Polypogon monspeliensis John Hunter Thomas 1983-5-23 22240 San Mateo Jasper Ridge Biological Preserve, Stanford University. Roadside drainage near shack side & low-flow crossing. Comment
  JROH5457  Polypogon monspeliensis W. Lennihan 1989-5-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By San Francisquito creek, to left of Whiskey Hill (low-flow) causeway. Comment
  SEINET10593598  Polypogon monspeliensis Delzie Demaree 1932-5-22 Demaree 9167 San Mateo Mud Lakes Los Francos Woods. Mud Lakes Comment
  JROH4811  Polypogon viridis H. J. Dengler 1965-8-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; S.F. Creek bed in sunny area below N. bend Comment
  JROH4820  Polypogon viridis John Hunter Thomas 1983-7-7 22816 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just below dam. Comment
  JROH45  Polystichum dudleyi Lawrence J. Winship 1974-11-2 1 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC72224  Polystichum dudleyi Brannan; Kellogg 1870-5-31 s.n. San Mateo San Gregorio Redwoods Comment
  CAS-BOT-BC76612  Polystichum munitum Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain - Base of Quarry 2 Comment
  JROH54  Polystichum munitum Lawrence J. Winship 1974-11-2 8 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC76649  Polystichum munitum Roxana S. Ferris 1921-3-20 2108 San Mateo Pescadero Creek in canyon, 6 mi. from Pescadero Comment
  RSA30864  Polystichum munitum Roxana S. Ferris 1921-3-20 2111 San Mateo Pescadero Creek Canyon, 6 mi above Pescadero. Comment
  RSA785881  Polystichum munitum Peter Rubtzoff 1976-10-5 8905 San Mateo eSaddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC105564  Populus trichocarpa J. Ed. McClellan; Bonnie McClellan 1976-3-24 s.n. San Mateo Pilarcitos Creek (west of the Coast Highway) at Half Moon Bay Comment
  UCSB18690  Populus trichocarpa Schulte, John 1963-4-9 San Mateo 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 121 Comment
  CAS-BOT-BC445247  Portulaca oleracea Walter Knight; Irja Knight 1963-10-7 442 San Mateo Hillside Blvd., San Bruno Mt. Comment
  POM226863  Potamogeton foliosus I. L. Wiggins 1935-8-24 8159 A San Mateo In reservoir about 2 miles east of Half Moon Bay. Comment
  CAS-BOT-BC453833  Potamogeton nodosus H. L. Mason 1921-5-28 s.n. San Mateo Lagoon back of New Years Pt. Comment
  UC1099838  Potamogeton pectinatus Verne Grant, Herbert L. Mason 1946-8-30 13078 San Mateo n of San Francisco County Prison Comment
  UCR141402  Potamogeton pectinatus June Latting 1975-6-8 s.n. San Mateo Central Coast, slough across from Pescadero dump (on Bean Hollow Rd.), west of Pescadero 9 Comment
  CDA857  Potamogeton pusillus Wm. Davis 1964-6-17 San Mateo Lake on Purcell property, San Mateo. 0 Comment
  UC204845  Potamogeton pusillus var. pusillus W. R. Dudley July 1893 San Mateo Searsville Pond Comment
  UC1128137  Potentilla anserina subsp. pacifica H. S. Yates 1935-5-8 5221 San Mateo 2 mi sw Pescadero; Santa Cruz Quad. Comment
  UC555624  Potentilla anserina subsp. pacifica Herbert L. Mason 1927-4-24 3701 San Mateo mouth of San Gregorio Creek Comment
  CAS-BOT-BC141934  Potentilla anserina subsp. pacifica H. M. Hall 1922-5-17 s.n. San Mateo Point Montara, wet swale at radio sta., coast of San Mateo co. Comment
  UC1543108  Potentilla anserina subsp. pacifica Donald G. Nelson 1939-6-14 617 San Mateo e side Skyline Blvd (a few mi s of Daly City); s of Daly Cith Comment
  JROH3388  Primula hendersonii John Hunter Thomas 1982-3-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Rattlesnale Rocks Comment
  CAS-BOT-BC516344  Prosartes hookeri Le Roy Abrams 1902-5-20 2467 San Mateo King's Mountain Comment
  CAS-BOT-BC516351  Prosartes hookeri M. N. Paulson 1915-4-1 s.n. San Mateo Kings Mountain Comment
  SEINET12054260  Prosartes hookeri Unknown 1932-1 8971 San Mateo Los Franco woods Comment
  CAS-BOT-BC517395  Prosartes smithii H. L. Mason 1917-4-1 s.n. San Mateo Kings Mountain Comment
  CAS-BOT-BC166660  Prunella vulgaris subsp. lanceolata Peter Rubtzoff 1975-10-24 8430 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. In East Fork Colma Creek canyon area. San Bruno Mountains. Comment
  CDA40755  Prunella vulgaris subsp. vulgaris Villegas & France 1972-8-7 PDR # 37028 San Mateo 415 Cypress Avenue, Millbrae. 0 Comment
  RSA18456  Prunella vulgaris var. lanceolata Carl B. Wolf 1927-6-29 551 San Mateo South of Pebble Beach near Pescadero. Comment
  RSA18295  Prunella vulgaris var. lanceolata Carl B. Wolf 1927-6-21 422 San Mateo East slope of Kings Mt. Comment
  RSA218028  Prunella vulgaris var. lanceolata Walter Knight, I. Knight 1963-8-5 s.n. San Mateo Colma Canyon Comment
  JROH3751  Prunus John Hunter Thomas 1981-4-5 20290 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek Comment
  CAS-BOT-BC159841  Prunus cerasifera Paul Reeberg 1988-5-17 s.n. San Mateo San Bruno Mountains Comment
  CAS-BOT-BC158175  Prunus emarginata L. R. Abrams 1916-4-22 5575 San Mateo Pilarcitos [Canon] Canyon 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-BC154652  Prunus subcordata Adoph Holme 1929-4-1 s.n. San Mateo Berenda Farm near Redwood City Comment
  RSA112479  Prunus subcordata H. L. Mason 1921-3-9 s.n. San Mateo Near zoo, shack. At edge of Redwoods. Jasper Ridge. Comment
Read comments
Sep 19 2011
  JROH3750  Prunus virginiana var. demissa Toni Corelli 2006-8-9 319 San Mateo Jasper Ridge Biological Preserve, Stanford University; down slope along fire Road E, above deep inlet 109 Comment
  CAS-BOT-BC356857  Pseudognaphalium californicum Josephine D. Randall 1907-7-23 47 San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  JROH755  Pseudognaphalium californicum John H. Thomas 1961-6-7 9534 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC356864  Pseudognaphalium californicum Philip C. Wheeler 1965-5-8 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  CAS-BOT-BC357118  Pseudognaphalium luteoalbum John H. Thomas 1976-10-7 18396 San Mateo Along coast highway #1, 0.6 mile north of northern most road to Pigeon Pt. Lighthouse. About 4.2 miles almost due south of Pescadero 30 Comment
  CAS-BOT-BC357124  Pseudognaphalium luteoalbum Fred Hemphill 1973-4-22 841 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC357134  Pseudognaphalium luteoalbum Cherie Wetzel 1969-7-8 918 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  JROH773  Pseudognaphalium luteoalbum J. H. Thomas 1958-12-21 7510 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  JROH776  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
  UC575670  Pseudognaphalium ramosissimum Lewis S. Rose 1935-8-13 35568 San Mateo Salada 30 Comment
  CAS-BOT-BC344869  Pseudognaphalium stramineum Peter Rubtzoff 1975-11-8 8438 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC361572  Pseudognaphalium stramineum Louis F. Pitelka 1973-6-16 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  CAS-BOT-BC361565  Pseudognaphalium stramineum W. R. Dudley 1896-11-15 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Spanish Town Comment
  CAS-BOT-BC361566  Pseudognaphalium stramineum Phillip Wheeler 1965-5-17 s.n. San Mateo San Bruno Mountain. Cow Palace area Comment
  HSC24038  Pseudognaphalium thermale Mary Katherine Wicksten 1971-6-17 55 San Mateo Huddart Park on Chickadee Trail Comment
  RSA15295  Pseudotsuga menziesii C. B. Wolf 1927-4-3 265 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  UCSB11506  Pseudotsuga menziesii Olson, Jim 1962-4-15 San Mateo 2 miles east of Portola State Park of Portola State Park Road; 20 miles south of La Honda Comment
  SJSU10067  Psilocarphus tenellus R. D. Hennessey 1964-4-25 57 San Mateo Pilarcitos Cr near outlet to ocean Comment
  JROH3287  Pterostegia drymarioides Herbert Dengler unspecified s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC421318  Pterostegia drymarioides Art Menzies; Barbara Menzies 1965-3-14 s.n. San Mateo San Bruno Mountain. South Power Line Ridge Comment
  UCD18553  Puccinellia lemmonii Roman Gankin 1950-7-15 27 San Mateo city of Menlo Park, Hermosa Way, along roadside. 30 Comment
  UCD92953  Puccinellia maritima William Anderson 1968-4-20 s.n. San Mateo Redwood City. NE of the boat harbor on Bait Island. Comment
  UCD92957  Puccinellia maritima August L. Hormay 1932-5-29 s.n. San Mateo San Bruno. Comment
  CAS-BOT-BC62713  Quercus X chasei B. Bartholomew 1983-8-28 1482 San Mateo 1.2 mi. N of Skyline Blvd. on Page Mill Road on the N side of the road, close to the Santa Clara County line 640 Comment
  JROH2536  Quercus X jolonensis John Gray 1916-10-19 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM192780  Quercus X morehus W. R. Dudley 1904-4-10 s.n. San Mateo Goat Ranch Road near Alpine Road, Black Mountain, Santa Cruz Mountain Peninsula. Comment
  CAS-BOT-BC61704  Quercus agrifolia Paul Arnaud 1941-3-16 s.n. San Mateo Redwood City - Whipple Road Comment
  CAS-BOT-BC61708  Quercus agrifolia Walter Knight; Irja Knight 1964-9-2 722 San Mateo About 1/3 way up Buckeye Canyon - west facing slope, San Bruno Mountain Comment
  UCD45091  Quercus agrifolia Roman Gankin; Ken Himes, and Toni Corelli 2003-8-23 1401 San Mateo About 0.4 mi above Pilarcitos Lake Dam on main road to '5 points' crossroads on downside edge of roadway. Comment
  SEINET10962205  Quercus agrifolia Lewis S. Rose 1964-1 Rose 64012 San Mateo Emerald Lake, w. of Redwood City hills. 122 Comment
  JROH2465  Quercus berberidifolia John Rawlings 2007-12-19 0929 San Mateo Jasper Ridge Biological Preserve, Stanford University; about 10 yards northeast of Rd. F in blue oak woodland west of Area C serpentine 178 Comment
  CAS-BOT-BC62308  Quercus chrysolepis Albert Wilson 1936-8-16 s.n. San Mateo Santa Cruz Mts. above Pescadero Comment
  CAS-BOT-BC94273  Quercus durata Lewis S. Rose 1970-7-21 70074 San Mateo Emerald Lake, W of Redwood City 243 Comment
  RSA169307  Quercus durata L. S. Rose 1964-9-5 64068 San Mateo Emerald Lake, W of Redwood City. 244 Comment
  UC847969  Quercus durata Lewis S. Rose 1938-11-27 38314 San Mateo w of Redwood City; Emerald Lake 243 Comment
  SEINET12034352  Quercus durata Unknown 1930-1 7294 San Mateo ridges near Searsville Lake Common Chaparral Comment
  SEINET13953377 Image available Quercus durata Lewis S. Rose 1964-1 64068 San Mateo W. of Redwood City; alt. ca. 800 ft. 244 Comment
  HSC100107  Quercus kelloggii Mary Katherine Wicksten 1971-8-20 128 San Mateo Huddart Park, above Oak Area Comment
  CAS-BOT-BC62891  Quercus lobata W. R. Dudley 1894-11-2 s.n. San Mateo Woodside road Comment
  CAS-BOT-BC62895  Quercus lobata John Thomas Howell 1926-10-23 2229 San Mateo Sand Hill Road west of Stanford University Comment
  RSA101043  Quercus lobata G. Oberlander 1949-7-30 346 San Mateo Southern boundary, San Francisco Watershed Reserve. Comment
  UCD47154  Quercus parvula var. shrevei John M. Tucker 1994-9-9 s.n. San Mateo Huddart Park on NE facing slope nr. Miwok Shelter. 365 Comment
  CAS-BOT-BC134795  Quercus wislizeni Charles Piper Smith 1908-3-28 1371 San Mateo Woodside-Kings Moutain Road. Pacific slope Comment
  CAS-BOT-BC134781  Quercus wislizeni W. R. Dudley 1902-11-28 s.n. San Mateo Santa Cruz Peninsula. In front of Murphy Place, Upper Pescadero Creek Comment
  SEINET13954082 Image available Quercus wislizeni John Thomas Howell 1964-1 40961 San Mateo Portola State Park Comment
  RSA18093  Quercus wislizeni var. wislizeni Carl B. Wolf 1929-4-24 3655 San Mateo south west end of Jasper Ridge, near Searsville Lake Comment
  CAS-BOT-BC362545  Rafinesquia californica Fred Hemphill 1973-5-14 817 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  SEINET12086684  Ranunculus W. R. Dudley 1904-1 s.n. San Mateo Corte Madera Creek, Santa Cruz Mountain Peninsula Comment
  RSA100978  Ranunculus californicus G. Oberlander 1949-4-2 20 San Mateo Top of Sweeney ridge, San Francisco Watershed Reserve Comment
  RSA399415  Ranunculus californicus J. Doty 1969-3-26 600 San Mateo 100 yards E of jct Hwy 35 and 92, near summit of Caost Range, San Francisco Peninsula. Comment
  RSA40296  Ranunculus californicus L. S. Rose 1947-4-14 47094 San Mateo Skyline Blvd, E of Sharps Park. 152 Comment
  UCD95985  Ranunculus californicus R. S. Woglum 1935-5-25 1156 San Mateo San Francisco area, Skyline Drive. Comment
  CAS-BOT-BC378526  Ranunculus californicus var. californicus Elizabeth McClintock 1972-4-23 s.n. San Mateo San Bruno Mountain, grassy slope above Fern Rock Comment
  CAS-BOT-BC378536  Ranunculus californicus var. californicus Daniel Cohen 1953-4-11 12 San Mateo grassy meadow on north shore of Searsville Lake Comment
  POM268184  Ranunculus californicus var. cuneatus Lyman Benson 1935-3-10 6257 San Mateo Menlo Park. San Franciso Bay. 30 Comment
  JROH3478  Ranunculus hebecarpus John H. Thomas 1971-4-25 15788 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-BC83424  Ranunculus lobbii W. R. Dudley 1906-5-22 s.n. San Mateo Santa Cruz Mountain Peninsula. Coal Mine Ridge. Comment
  CAS-BOT-BC83428  Ranunculus lobbii A. D. E. Elmer 1903-4-1 4734 San Mateo Alpine School House. Comment
  SEINET12100640  Ranunculus orthorhynchus L. S. Rose 1937-1 37241 San Mateo Brisbane 6 Comment
  UC827645  Ranunculus orthorhynchus var. bloomeri Lewis S. Rose 1937-4-30 37241 San Mateo Brisbane 6 Comment
  SJSU1605  Rhamnus alaternus C. D. Duncan 1955-2-17 San Mateo residence, Menlo Park Comment
  POM283036  Rhamnus californica Lyman Benson 1934-7-29 6110 San Mateo Crystal Springs Lake; Mt. Range: Santa Cruz; Watershed: S. F. Bay. 152 Comment
  RSA100994  Rhamnus californica G. Oberlander 1949-7-30 246 San Mateo Crest of Sweeney Ridge, San Francisco Watershed reserve Comment
  RSA152061  Rhamnus californica John H. Thomas 1961-5-7 9297 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  SEINET12209519  Rhamnus californica Unknown 1933-1 s.n. San Mateo On hillside between Skyline and Half Moon Bay Comment
  JROH3560  Rhamnus crocea John H. Thomas 1963-3-20 10029 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Westridge end of ridge Comment
  JROH3561  Rhamnus crocea John H. Thomas 1964-4-19 10311 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry open slope below dam Comment
  JROH5728  Rhamnus crocea John Rawlings 2015-3-3 1306 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 8 twenty-five yards south of Trail 7 intersection. 134 Comment
  RSA20326  Rhamnus crocea Carl B. Wolf 1929-5-17 3717 San Mateo 1 mile W of Skyline Drive on Alpine Road. Comment
  RSA7729  Rhamnus crocea Carl B. Wolf 1927-5-31 407 San Mateo Searsville Lake Comment
  CAS-BOT-BC437974  Ribes Elizabeth McClintock 1965-3-28 s.n. San Mateo Devil's Arroyo; San Bruno Mountains Comment
  CAS-BOT-BC92488  Ribes aureum var. gracillimum James McMurphy 1906-4-4 s.n. San Mateo Creek above Judge Allen's, Santa Cruz Mountains. Comment
  RSA3921  Ribes californicum James I. McMurphy 1906-5-11 57 San Mateo San Francisquito Cr. Stanford University. Comment
  UC204126  Ribes californicum A. D. E. Elmer March 1903 4683 San Mateo Portola Comment
  UC518033  Ribes californicum Lewis S. Rose 1933-6-9 33226 San Mateo Belmont Comment
  SEINET13942335 Image available Ribes californicum Lewis S. Rose 1949-1 49007 San Mateo Hillsides, west of Belmont. alt. ca. 300 ft. 91 Comment
  CAS-BOT-BC92999  Ribes californicum var. californicum Lewis S. Rose 1949-3-18 49007 San Mateo Hillsides west of Belmont. 91 Comment
  JROH2649  Ribes californicum var. californicum John Hunter Thomas 1983-2-21 21280 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Escobar Gate Comment
  CAS-BOT-BC6176  Ribes deductum Charles Fuller Baker 1902-4-4 441 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC173082  Ribes divaricatum var. pubiflorum Lewis S. Rose 1965-3-16 65008 San Mateo Searsville Lake 121 Comment
  RSA0025025  Ribes divaricatum var. pubiflorum L. R. Abrams 1904-4-10 s.n. San Mateo East of Crystal Springs Reservoir. Comment
  CAS-BOT-BC173469  Ribes malvaceum Walter Knight 1964-9-14 827 San Mateo Near summit Peak Mt. Comment
  CAS-BOT-BC212827  Ribes menziesii A. D. E. Elmer 1903-6-1 4787 San Mateo Lake San Andreas Comment
  CAS-BOT-BC212830  Ribes menziesii George Oberlander 1950-3-11 495 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC212837  Ribes menziesii R. Bacigalupi 1922-3-1 s.n. San Mateo Along Pescadero Creek Comment
  CAS-BOT-BC212839  Ribes menziesii W. R. Dudley 1894-3-23 s.n. San Mateo By Canada Creek above Searsville Dam and below McDonough Ranch Comment
  CAS-BOT-BC212813  Ribes menziesii W. R. Dudley 1898-4-15 s.n. San Mateo Unspecified Comment
  CAS-BOT-BC212820  Ribes menziesii R. Bacigalupi 1946-7-6 2792 San Mateo Canyon along Edgemar Road, 1.5 miles above Edgemar Comment
  RSA0021750  Ribes menziesii var. leptosmum John H. Thomas 1960-3-1 8538 San Mateo Near San Francisquito Creek. Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  UC11656  Ribes menziesii var. senile Alice Eastwood May 1896 San Mateo Crystal Springs Comment
  UC75089  Ribes sanguineum C. F. Baker 1902-4-4 441 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC144607  Ribes sanguineum var. glutinosum David D. Keck 1932-6-1 1786 San Mateo Three miles north of La Honda, Santa Cruz Mtns. 365 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
  JROH2675  Ribes sanguineum var. glutinosum John H. Thomas 1968-3-17 14174 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC144643  Ribes sanguineum var. glutinosum W. R. Dudley 1896-2-16 s.n. San Mateo Glen Gloaming, branch of Pescadero and Mill Creek Comment
  RSA0019100  Ribes sanguineum var. glutinosum D. D. Keck 1932-2-14 1370 San Mateo Near La Honda, Santa Cruz Mountains (3 miles north). 366 Comment
  RSA0019113  Ribes sanguineum var. glutinosum L. R. Abrams, W. W. Eggleston 1924-3-23 19562 San Mateo Coast Range, near Palo Alto. 60 Comment
  SEINET3388620 Image available Rigiopappus leptocladus Lewis S. Rose 1933-4-30 33130 San Mateo Redwood City Comment
  UC24535  Romanzoffia californica J. Burtt Davy 1895-4-20 1065 San Mateo Pilarcitos Creek; ; Pilarcitos Creek, San Mateo Co. Comment
  UC10721  Rorippa curvisiliqua Alice Eastwood 1896-4-1 San Mateo between Crystal Springs and Millbrae; bet. Crystal Springs and Millbrae Comment
  SEINET11560757  Rorippa curvisiliqua N. L. Gardner 560 San Mateo San Francisco Peninsula, Merced Lake. Comment
  CAS-BOT-BC389728  Rosa J. Lovelle 1973-8-19 127 San Mateo Pomponio Canyon Comment
  CAS-BOT-BC147625  Rosa californica Ned Cahill 1974-6-21 333 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC147626  Rosa californica George Oberlander 1949-8-20 370 San Mateo Pilarcitos Canyon Comment
  CHSC42087  Rosa gymnocarpa Rusti Gammon 1986-3-30 17 San Mateo Ca. 8.1 mi sw of Saratoga. 4.1 mi w off hwy 9. Ca. 5 yds e up hillside. 569 Comment
  POM275418  Rosa gymnocarpa Lyman D. Benson 1931-5-10 2796 San Mateo Woodside. Santa Cruz Mtn Range. 427 Comment
  RSA0005651  Rosa piscatoria A. D. E. Elmer 1903-05 4923 San Mateo Iverson's Place; on the Pescadero Creek. Comment
  CAS-BOT-BC274264  Rostraria cristata John Thomas Howell 1973-4-28 49145 San Mateo Burlingame Comment
  SEINET5550871  Rubiaceae H. S. Gentry 1931-1 89 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC156648  Rubus bifrons Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Colma Canyon Comment
  CAS-BOT-BC152871  Rubus parviflorus Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo Above the quarry - San Bruno Mountain Comment
  JROH3775  Rubus parviflorus John Hunter Thomas 1982-7-8 21079 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing Comment
  RSA128601  Rubus parviflorus var. velutinus Peter H. Raven 1950-4-30 1982 San Mateo Montara Mtns. Ca 1/2 mile N of Montara. 91 Comment
  CAS-BOT-BC156766  Rubus spectabilis Roxana Stinchfield 1916-3-10 265 San Mateo Half Moon Bay Comment
  CAS-BOT-BC156772  Rubus spectabilis Peter H. Raven 1951-3-12 2749 San Mateo N. base San Bruno Mountains Comment
  CAS-BOT-BC157079  Rubus ursinus L. R. Abrams 1914-10-14 5133 San Mateo Tunitas [Canon] Canyon Comment
  CAS-BOT-BC157083  Rubus ursinus A. D. E. Elmer 1903-6-1 4664 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC157092  Rubus ursinus A. D. E. Elmer 1903-5-1 4788 San Mateo Spanishtown Comment
  POM261520  Rubus ursinus Alice Eastwood, John T. Howell 1938-6-26 6055 San Mateo Near Pescadero. Comment
  RSA112366  Rubus ursinus W. R. Dudley 1898-4-15 s.n. San Mateo Searsville. The Santa Cruz Peninsula. Comment
  UCSB17156  Rubus ursinus Schulte, John 1963-4-14 San Mateo Jasper Ridge 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  POM139627  Rubus vitifolius A. D. E. Elmer 1903-06 4664 San Mateo Crystal Springs Lake. Comment
  UCR12025  Rumex acetosella Coleta A. Lawler 1964-4-19 55 San Mateo 4.5 miles east of Half Moon Bay; Pilarcitos Rd, 0.5 mi NE jct Half Moon Bay Rd. 76 Comment
  CAS-BOT-BC421569  Rumex crassus John H. Thomas 1964-6-19 10419 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC433358  Rumex crispus Ned Cahill 1974-6-21 349 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  CAS-BOT-BC433817  Rumex pulcher David D. Keck 1932-5-6 1458 San Mateo Belmont Comment
  JROH3311  Rumex pulcher John Hunter Thomas 1988-5-25 24490 San Mateo Jasper Ridge Biological Preserve, Stanford University. Road near low flow crossing. Comment
  JROH5731  Rumex salicifolius John Rawlings 2013-5-21 1198 San Mateo Jasper Ridge Biological Preserve, Stanford University; moist ditch along east side of road E opposite intersection of trail 14 116 Comment
  SD38936  Rumex salicifolius Edith A. Purer 1933-7-27 5357 San Mateo High stabilized sand dunes, Pigeon Point Comment
  UC569569  Rumex salicifolius var. crassus James Arata Karakawa 1937-10-20 228 San Mateo near Montara Comment
  UC1191281  Rumex salicifolius var. transitorius Herbert L. Mason and Verne Grant 1946-8-28 13080 San Mateo n of San Francisco county prison Comment
  HSC23969  Rupertia physodes Mary Katherine Wicksten 1971-6-24 111 San Mateo Huddart Park, near entrance Comment
  JEPS48781  Rupertia physodes James G. Daly 1934-1 380 San Mateo at junction of La Honda Road and Skyline Boulevard Santa Cruz Mts., San Gregorio watershed Comment
  UC583143  Ruppia maritima Lewis S. Rose 1936-9-6 36724 San Mateo Granada 1 Comment
  SEINET11763715  Ruppia maritima H. L. Mason 1921-1 s.n. San Mateo Pebble Beach, near Pescadero Comment
  JROH1711  Sagina apetala John H. Thomas 1961-4-8 9073 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1720  Sagina apetala John Hunter Thomas 1978-4-25 19145 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM163965  Sagina maxima subsp. crassicaulis Copeland 1903-6-5 3329 San Mateo Montara Point. Comment
  CAS-BOT-BC103337  Salix bonplandiana W. R. Dudley 1900-3-18 s.n. San Mateo South of San Andreas Lake Comment
  CAS-BOT-BC104050  Salix hindsiana Lewis S. Rose 1965-3-8 65003 San Mateo Searsville Lake 121 Comment
  POM216557  Salix laevigata D. D. Keck 1932-3-6 1392 San Mateo Searsville Lake. Comment
  CAS-BOT-BC125378  Salix lasiandra var. lasiandra Lewis S. Rose 1965-3-8 65002 San Mateo Searsville Lake 121 Comment
  CAS-BOT-BC107132  Salix lasiolepis Ira L. Wiggins 1976-4-20 22178 San Mateo Along N bank of San Francisquito Creek, near Pope Street Bridge, Menlo Park Comment
  CAS-BOT-BC107141  Salix lasiolepis L. R. Abrams 1915-3-13 5161 San Mateo Near junction of San Francisquito and Los Trancos Creeks, about 2 miles from Stanford University Comment
  POM216549  Salix lasiolepis D. D. Keck 1932-1-24 1356 San Mateo Portola. 150 Comment
  RSA176658  Salix lasiolepis Peter H. Raven 1964-2-16 18742 San Mateo Just south of Lake San Andreas. Comment
  UCD164611  Salix lasiolepis Peter Rubtzoff 1975-10-24 8433 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
  POM281343  Salix lasiolepis Lyman D. Benson 1931-1-25 2577 San Mateo Near the Skyline Blvd. 5 miles S of La Honda Grade. 366 Comment
  CAS-BOT-BC108253  Salix lasiolepis var. bigelovii Alice Eastwood 1920-3-15 s.n. San Mateo San Bruno Hills Comment
  CAS-BOT-BC124481  Salix lasiolepis var. lasiolepis Elizabeth McClintock 1965-3-28 s.n. San Mateo Devil's Arroyo Comment
  CAS-BOT-BC126478  Salix sitchensis W. R. Dudley 1903-5-2 s.n. San Mateo Near Redwood Villa, La Honda Comment
  CAS-BOT-BC126490  Salix sitchensis A. D. E. Elmer 1903-4-1 4874 San Mateo Portola Comment
  CAS-BOT-BC126497  Salix sitchensis W. R. Dudley 1899-5-14 s.n. San Mateo Near road from San Andreas Lake to Pilarcitos Lake Comment
  CAS-BOT-BC126503  Salix sitchensis W. R. Dudley 1903-5-1 s.n. San Mateo Iverson's near Pescadero Creek Comment
  CAS-BOT-BC126516  Salix sitchensis W. R. Dudley 1903-5-1 s.n. San Mateo Iverson's near Pescadero Creek Comment
  UCD164608  Salix sitchensis Peter Rubtzoff 1975-10-11 8426 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-BC126484  Salix sitchensis J. W. Congdon 1897-7-21 s.n. San Mateo Coast Range Comment
  RSA201244  Salsola soda W. Anderson 1968-8-16 s.n. San Mateo Edge of salt marsh just above high tide line, west end of Dumbarton Bridge Comment
  UCD99304  Salsola soda T. C. Fuller 1968-9-25 17640 San Mateo w. end of Dumbarton Bridge, Menlo Park. Comment
  POM62871  Salvia spathacea C. F. Baker 1903-4-6 1878 San Mateo San Bruno Hills. Comment
  RSA152266  Salvia spathacea John H. Thomas 1961-5-7 9299 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  UCLA70089  Salvia spathacea H. L. Mason 1928-2-22 4160 San Mateo Mt. San Bruno Comment
  RSA218031  Salvia spathacea Walter Knight, I. Knight 1965-3-15 1218 San Mateo Colma Canyon. San Bruno Mountain. Comment
  SEINET10581809  Salvia spathacea Lewis S. Rose 1965-4-22 Rose 65028 San Mateo San Bruno Mountain, Colma Canyon open slopes. 61 Comment
  CAS-BOT-BC235036  Sambucus L. R. Abrams 1916-3-26 5589 San Mateo Road between San Mateo and Half Moon Bay, coast side of grade Comment
  POM46725  Sambucus microbotrys A. D. E. Elmer 1903-05 4663 San Mateo Butano Creek Comment
  CAS-BOT-BC246017  Sambucus nigra subsp. caerulea Lewis S. Rose 1966-8-15 66084 San Mateo Pulgas Water Temple 91 Comment
  CAS-BOT-BC246019  Sambucus nigra subsp. caerulea Walter Knight; Walter Knight 1963-6-24 s.n. San Mateo Bottom of Quarry 4 and west ravine, San Bruno Mountain Comment
  CAS-BOT-BC246023  Sambucus nigra subsp. caerulea George Oberlander 1950-4-2 586 San Mateo Sawyer Ridge, San Francisco Watershed Reserve Comment
  JROH1675  Sambucus nigra subsp. caerulea John Hunter Thomas 1985-5-22 23669 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC236463  Sambucus racemosa subsp. racemosa George Oberlander 1949-5-21 188 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve Comment
  CAS-BOT-BC236452  Sambucus racemosa subsp. racemosa Nancy Kittle 1981-5-15 067 San Mateo 1 mile west of junction of Highway 280 with Sandhill Road 50 Comment
  SEINET12121123  Sanicula arctopoides E. McClintock, Knight, W.; Knight, I. 1982-1 4642 San Mateo upper elevations of San Bruno Mountain, especially around parking lot area Comment
  CAS-BOT-BC223320  Sanicula bipinnatifida Ned Cahill 1974-4-30 215 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC223327  Sanicula bipinnatifida John H. Thomas 1958-3-19 7067 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  JROH324  Sanicula bipinnatifida John H. Thomas 1975-4-5 17708 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU1080  Sanicula bipinnatifida C. W. Sharsmith 1951-4-6 5820 San Mateo Woodside Hills c. 3 mi W of Woodside 182 Comment
  UC306543  Sanicula bipinnatifida A. D. E. Elmer April, 1903 San Mateo Lake San Andreas Comment
  CDA39078  Sanicula crassicaulis M. K. Beyers 2013-3-3 s.n. San Mateo Montara State Beach, McNee Ranch Trail Trailhead. Comment
  JROH331  Sanicula crassicaulis John H. Thomas 1967-5-12 12877 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0000761  Sanicula serpentina A. D. E. Elmer 1903-04 4498 San Mateo Portola. Comment
  JROH356  Scandix pecten-veneris John Hunter Thomas 1981-5-14 20578 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4416  Schoenoplectus acutus var. occidentalis John Hunter Thomas 1986-4-24 23979 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along west side of Searsville Lake between boat ramp and "old beach." Comment
  RSA366009  Schoenoplectus californicus Carolyn Clements s.n. San Mateo San Mateo Comment
  CAS-BOT-BC111781  Schoenoplectus pungens var. badius Ira L. Wiggins 1928-4-22 2947 San Mateo Moss Beach Comment
  UC1104551  Scirpus cernuus J. H. Thomas 1959-7-8 8017 San Mateo Pescadero Beach bluffs at Pescadero Beach Comment
  UC1154039  Scirpus cernuus J. Clausen 1939-7-1 1745 San Mateo Ano Nuevo Point Ano Nuevo Point (in depressions in stabilized dunes) Comment
  UC75027  Scirpus cernuus Dr. E. B. Copeland 1903-6-15 3315 San Mateo Montara Point Comment
  UC840693  Scirpus cernuus Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9290 San Mateo Ano Nuevo Point Comment
  JEPS79568  Scoliopus bigelovii Edward Lee with A. Carter, E. Crum and C. Belshaw 1936-1-26 1722 San Mateo Kings Mt. Rd. 2.6 mi. out of Woodside (e. side Cahill Ridge); Cahill Ridge Comment
  CAS-BOT-BC519002  Scoliopus bigelovii Elmer I. Applegate 1895-3-9 737 San Mateo Above Woodside Comment
  CAS-BOT-BC519011  Scoliopus bigelovii John Thomas Howell 1924-2-23 265 San Mateo King Mountain Comment
  POM193871  Scoliopus bigelovii W. R. Dudley 1895-3-5 s.n. San Mateo Kings Mt.; Plants of the Santa Cruz Peninsula. Comment
  RSA299412  Scoliopus bigelovii Inez Smith 1915-03 s.n. San Mateo Hillsboro. Comment
  SEINET12050520  Scoliopus bigelovii F. H. Utech 1988-1 88 -039 San Mateo 0.5 mi from jct of Kings Mt. Rd & CA 35 on former enroute to Woodside, near Skyline Hiking Trail 580 Comment
  CDA7620  Scolymus hispanicus T. C. Fuller 1965-7-8 13755 San Mateo D. McBryde property, 140 Eleanor Drive, Woodside. 0 Comment
  CDA7621  Scolymus hispanicus T. C. Fuller 1965-7-8 13755 San Mateo D. McBryde property, 140 Eleanor Drive, Woodside. 0 Comment
  CDA7622  Scolymus hispanicus T. C. Fuller 1965-7-8 13755 San Mateo D. McBryde property, 140 Eleanor Drive, Woodside. 0 Comment
  CAS-BOT-BC243516  Scribneria bolanderi John H. Thomas 1971-5-2 15869 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
Read comments
Jan 19 2018
  JEPS127846  Scrophularia californica Adam C. Schneider 2013-4-7 84 San Mateo Comment
  JROH4128  Scrophularia californica John Hunter Thomas 1977-6-16 18747 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2883  Scutellaria tuberosa Hester R. Davis 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2887  Scutellaria tuberosa John Hunter Thomas 1986-5-8 24029 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC59076  Sedum spathulifolium J. H. Thomas 1974-5-9 17333 San Mateo San Pedro Valley, Northern Part of county, inland from Pacifica. 152 Comment
  CAS-BOT-BC59272  Sedum spathulifolium W. R. Dudley 1897-6-4 s.n. San Mateo On rocks by Canyon Camp, W. Waddell Cr. Comment
  RSA0074736  Sedum spathulifolium A. D. E. Elmer 1903-06 4550 San Mateo Toward San Mateo from Crystal Springs Lake. Comment
  CAS-BOT-BC363398  Senecio aronicoides Fred Hemphill 1973-4-22 827 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC364632  Senecio vulgaris George Oberlander 1950-4-23 837 San Mateo San Francisco Watershed Reserve Comment
  CAS-BOT-BC80291  Sequoia sempervirens W. R. Dudley 1902-2-9 s.n. San Mateo Black Mt., Alpine Road Comment
  CAS-BOT-BC80295  Sequoia sempervirens William R. Dudley 1893-2-18 s.n. San Mateo Near La Honda Comment
  SBBG52369  Sequoia sempervirens F. C. Boutin 1968-3-25 1839 San Mateo Palo Alto, from the "Palo Alto" near the train bridge over San Francisquito Crk Comment
  CAS-BOT-BC85778  Sequoia sempervirens W. R. Dudley 1902-12-1 s.n. San Mateo On trail from Iverson's Bull Spring Comment
  SEINET10612343  Sequoia sempervirens Paulson 1914-10-21 PAULSON s.n. 1914 San Mateo Kings Mountain near woodside. Herbarium of Leland Stanford Jr. University. Plants of the Santa Cruz Mountain Penninsula. Comment
  CAS-BOT-BC243556  Setaria parviflora John Thomas Howell 1957-7-8 32805 San Mateo Holy Cross Cemetery Comment
  SBBG83432  Sherardia arvensis B. Bowman 1961-3-30 30 San Mateo corner of Sebastian Drive and Lassuen Court; Burlingame 9 Comment
  SD39295  Sidalcea diploscypha Edith A. Purer 1933-5-30 3636 San Mateo Between Woodside and Spring Valley Lakes. Comment
  RSA772539  Sidalcea malviflora Robert F. Thorne, Percy C. Everett 1963-6-9 32221 San Mateo On top of San Bruno Mountain on Kamchatka Point near the TV tower. 335 Comment
  UC1589119  Sidalcea malviflora W. Roderick 1961-1-15 61 .012 San Mateo 2.6 mi n Kings Mt. Rd. (nw of Woodside, Cahil Ridge on Skyline Blvd., Highway 5); nw of Woodside, Cahil Ridge on Skyline Blvd Comment
  SD39303  Sidalcea malviflora Marie Cummings 1933-5-8 3733 San Mateo Woodside Road Comment
  SJSU8493  Sidalcea malviflora R. L. Herb 1959-4-19 San Mateo 2.5 mi S of Pescadero Comment
  UC1537663  Sidalcea malviflora subsp. malviflora Gordon H. True Jr. 1936-6-7 492 San Mateo top of ocean bluff 2 mi s Pescadero; s of Pescadero 15 Comment
  UC517485  Sidalcea malviflora subsp. malviflora John Thomas Howell 1933-4-9 10974 San Mateo 2 mi n Pigeon Pt.; n of Pigeon Pt. Comment
  JROH2971  Sidalcea malviflora subsp. malviflora John Hunter Thomas 1981-4-5 20271 San Mateo Jasper Ridge Biological Preserve, Stanford University; near lake Comment
  UC189013  Sidalcea malviflora subsp. malviflora E. L. Greene 1887-6-11 San Mateo Comment
  CHSC27889  Sidalcea malviflora subsp. purpurea Susan Perkins 1978-3-24 8 San Mateo San Gregorio Beach, 100 yds w of jct Hwys 1 and 84, 9 mi w of La Honda. Bluff n side of San Gregorio Creek. 15 Comment
  UC8420  Silene californica Alice Eastwood May 1896 San Mateo Crystal Springs Comment
  CAS-BOT-BC386851  Silene gallica Walter Knight; Irja Knight 1965-4-4 s.n. San Mateo San Bruno Mountain. Bitter Cherry Ravine. Comment
  CAS-BOT-BC364853  Silybum marianum W. R. Dudley 1893-6-8 s.n. San Mateo Santa Cruz Peninsula. Cedro Cottage, Stanford University Comment
  CHSC39827  Sisyrinchium bellum Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  POM169079  Sisyrinchium bellum C. F. Baker 1902-3-30 428 San Mateo Crystal Springs Lake. Comment
  UC1206464  Sisyrinchium bellum LeRoy Abrams 1902-4-13 2327 San Mateo Lake San Andreas Comment
  HSC59826  Sisyrinchium bellum Clark L. Miller 1978-6-15 367 San Mateo 6 mi. S of Half Moon Bay off old Hwy. 1, 2 mi. in on Verde Rd. 61 Comment
  POM291003  Sisyrinchium bellum Lyman Benson 1935-4-27 6421 San Mateo La Honda Road, Santa Cruz Mts, east of Skyline Blvd., San Francisco Bay watershed. 457 Comment
  RSA647584  Sisyrinchium bellum J. Doty 1969-3-26 607 San Mateo San Gregorio Beach State Park. 15 Comment
Read comments
Jan 26 2017
  RSA15288  Smilacina stellata var. sessilifolia Carl B. Wolf 1927-4-3 256 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  JROH4181  Solanum americanum Carol Zabel 1989-8-11 29 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek bank about 100 feet upstream from low-flow crossing on Road C. Comment
  SJSU7787  Solanum americanum C. A. Staicer 1976-9-25 San Mateo San Francisquito Cr near El Camino Real, Menlo Park Comment
  UC1125189  Solanum douglasii H. S. Yates 1935-2-3 5007 San Mateo 1/2 mi se of Pigeon Point 30 Comment
  UCD126846  Solanum furcatum E. F. Paddock; G. L. Stebbins Jr. 1940-7-28 89 San Mateo Tobin. Comment
  SJSU15425  Solanum physalifolium var. nitidibaccatum Toni Corelli 2011-8-31 719 San Mateo Half Moon Bay east of of Hwy. 1 and south of Higgins Canyon Road 30 Comment
  CAS-BOT-BC157036  Solanum umbelliferum L. Abrams 1914-4-2 5073 San Mateo Woodside Comment
  CAS-BOT-BC35922  Solanum umbelliferum Fred Hemphill 1973-4-15 673 San Mateo San Carlos. Chaparral area N of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC58477  Solanum umbelliferum N. Cahill 1975-1-18 395 San Mateo Near the intersection of Canada and Edgewood Rds, about 3 mi westward from Redwood City. Comment
  NY820569  Solanum umbelliferum L. Abrams 1914-4-2 5073 San Mateo Woodside Comment
  POM87735  Solanum umbelliferum L. R. Abrams 1902-1-7 2262 San Mateo Kings Mts. Comment
  UC139876  Solanum umbelliferum C. F. Baker 1902-1-15 234 San Mateo w side of King's Mountain King's Mountain Comment
  JROH5884  Solanum umbelliferum J. C. Gaither Jr. 1982-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail behind weather station Comment
  RSA523369  Solanum umbelliferum G. H. True 1936-4-5 385 San Mateo Canyon near coast between San Gregorio and Pescadero. 30 Comment
  UC1537406  Solanum umbelliferum Gordon H. True Jr. 1936-4-5 385 San Mateo between San Gregorio Pescadero (near coast) 30 Comment
  UCD136058  Solidago Collector Unknown 1925-6-15 1662 San Mateo Pescadero - Santa Cruz Road. Comment
  RSA675329  Solidago californica L. S. Rose 1932-10-12 32669 San Mateo Kings Mountain. Comment
  CAS-BOT-BC353471  Solidago elongata Peter Rubtzoff 1976-10-5 8909 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-BC365747  Solidago spathulata Elizabeth McClintock 1966-9-29 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon Comment
  CAS-BOT-BC365749  Solidago spathulata John H. Thomas 1961-5-12 9331 San Mateo San Bruno Mountain in northern part of county 396 Comment
  HSC24021  Solidago velutina subsp. californica Mary Katherine Wicksten 1971-8-20 207 San Mateo Huddart Park; area by King's Mtn. Rd., above Miwok Area Comment
  JROH1235  Solidago velutina subsp. californica W. R. Dudley 1893-7-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  JROH1246  Soliva sessilis John Hunter Thomas 1981-5-19 20612 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA320914  Soliva sessilis Robert A. Norris 1984-3-21 4651 San Mateo Along trail in saddle between Parking Area (and summit) and Blue Blossom Hill, San Bruno Mtns. 305 Comment
  UCSC007747  Sonchus asper subsp. asper Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC374696  Sonchus oleraceus Ira L. Wiggins 1979-8-26 22247 San Mateo Alley between Central and Woodland Avenues, running from Pope to Gilbert Streets, Menlo Park Comment
  CAS-BOT-BC374701  Sonchus oleraceus John H. Thomas 1963-5-20 10112 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  SD38308  Sonchus oleraceus Edith A. Purer 1932-7-18 San Mateo Half Moon Bay; Comment
  UCSB18413  Sonchus oleraceus Hutchinson, Sandra 1964-3-24 San Mateo Crystal Springs Lake, Sawyer Camp Road, about 2.7 miles off Skyline Blvd., entrance off Millbrae Ave. 106 Comment
  CAS-BOT-BC236623  Spartina foliosa Alice Eastwood 1914-12-16 s.n. San Mateo Redwood City Comment
  SEINET11681953  Spartina foliosa Unknown 1933-1 10528 San Mateo San Francisco Bay, Belmont Comment
  CAS-BOT-BC390010  Spergula arvensis Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  JROH1756  Spergularia John Hunter Thomas 1978-4-25 19155 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-BC390477  Spergularia macrotheca var. macrotheca Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  CAS-BOT-BC390470  Spergularia macrotheca var. macrotheca W. S. Atkinson 1901-7-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Pescadero Creek Comment
  CAS-BOT-BC390697  Spergularia rubra George Oberlander 1949-6-25 229 San Mateo San Francisco Watershed Reserve 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
  RSA0097346  Spergularia rubra var. perennans Lyman Benson 1934-7-29 6113 San Mateo Moss Beach. Pcific Ocean watershed. 15 Comment
  RSA0004233  Sphaeralcea fasciculata var. elmeri A. D. E. Elmer 1903-05 4395 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC173613  Spiranthes romanzoffiana Peter Rubtzoff 1978-8-17 9258 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC534887  Spirodela polyrhiza Roxana S. Ferris 1920-10-1 2101 San Mateo Mud Lakes, Coalmine Ridge Comment
  CAS-BOT-BC220977  Stachys B. Carlson 1981-5-10 042 San Mateo Dead end of Native Sons road, off Pescadero Road 152 Comment
  SEINET13947993 Image available Stachys ajugoides Lewis S. Rose 1956-1 56112 San Mateo Skyline Blvd. Hills W of San Mateo, alt ca 600 ft 183 Comment
  UC306581  Stachys ajugoides var. ajugoides A. D. E. Elmer June, 1903 4260 San Mateo Crystal Springs Lake Comment
  JROH2913  Stachys bullata John Hunter Thomas 1991-11-21 25098 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing of San Francisquito Creek Comment
  RSA181217  Stachys bullata John H. Thomas 1965-11-26 11455 San Mateo At intersection of Tunitas Creek Road and Lobos Creek cutoff. 122 Comment
  UC1124917  Stachys bullata N. K. Carlson 1935-7-5 32 San Mateo 3 mi s Bellvale; Santa Cruz Quadrangle Comment
  UC306580  Stachys bullata A. D. E. Elmer June, 1903 4417 San Mateo San Mateo Comment
  JROH2907  Stachys bullata John Hunter Thomas 1984-5-27 23407 San Mateo Jasper Ridge Biological Preserve, Stanford University; beyond redwood grove along San Francisquito Creek, about 300 yards to the east Comment
  RSA505403  Stachys bullata Gordon H. True Jr. 1936-6-14 503 San Mateo Near coast, in canyon south of Salada Beach. 152 Comment
  SEINET12343829  Stachys bullata L. S. Rose 1932-5-3 32215 San Mateo San Bruno 183 Comment
  UCD126015  Stachys bullata J. D. Skoss 1948-8-22 97 San Mateo San Vicente Canyon, near Montara. Comment
  RSA107098  Stachys chamissonis L. S. Rose 1956-7-2 56118 San Mateo Emerald Lake, hills of Redwood City. 183 Comment
  JROH2917  Stachys pycnantha John H. Thomas 1963-6-23 10162 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1206470  Stachys pycnantha Le Roy Abrams 1902-9-21 2986 San Mateo Crystal Springs. Comment
  RSA0109085  Stachys pycnantha Carl B. Wolf 1927-7-1 535 San Mateo Above Emerald Lake, back 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
  RSA785893  Stachys rigida subsp. quercetorum Peter Rubtzoff 1975-10-11 8425 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Northwest of Fog Forest. Comment
  JROH5848  Stachys rigida var. quercetorum Marcel Reeves 1954-4-23 49 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake 167 Comment
  CAS-BOT-BC394057  Stellaria media John H. Thomas 1964-4-30 10358 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC394059  Stellaria media Josephine D. Randall 1908-2-16 s.n. San Mateo Corte de Madera Canon near Alpine Road; Santa Cruz Peninsula Comment
  JROH1777  Stellaria media J. H. Thomas 1963-2-21 10021 San Mateo Jasper Ridge Biological Preserve, Stanford University; along old road at Westridge end of ridge Comment
  JROH1788  Stellaria nitens John H. Thomas 1958-2-15 6993 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC375911  Stephanomeria virgata Le Roy Abrams 1902-9-28 3002 San Mateo New Grade Road - near Portola Comment
  JROH5386  Stipa miliacea var. miliacea John Hunter Thomas 1985-5-21 23662 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bridge Comment
  JROH5336  Stipa pulchra John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM176887  Streptanthus albidus R. Patterson 1895-4-20 s.n. San Mateo San Juan Bautista(?) Hills trail to San Jose Comment
Read comments
Jun 18 2018
  JROH5516  Stuckenia pectinata Ann Lambrecht, Paul Heiple 2008-8-6 45 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  RSA681533  Symphoricarpos Annuschka Deb 1989-6-13 236 San Mateo Woodside, Yerba Buena Nursery Demonstration Garden. Comment
  POM285012  Symphoricarpos albus var. laevigatus Lyman Benson 1937-7-15 8449 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains; San Francisco Bay watershed. 244 Comment
  SJSU110  Symphoricarpos albus var. laevigatus C. D. Duncan 1929-5-30 San Mateo Jasper Ridge above Searsville L Comment
  CAS-BOT-BC271649  Symphoricarpos albus var. laevigatus Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC237069  Symphoricarpos mollis Fred Hemphill 1973-4-22 741 San Mateo Area north of Malabar Road and Melendy Drive, San Carlos 207 Comment
  CAS-BOT-BC344896  Symphyotrichum chilense Peter Rubtzoff; Roman Gankin 1975-9-11 8377 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains Comment
  UC1555382  Symphyotrichum chilense J. A. DeBenedictis 1988-7-13 1542 San Mateo San Bruno Mt. Comment
  CAS-BOT-BC99057  Symphyotrichum chilense David D. Keck 1931-9-27 1274 San Mateo Dumbarton Bridge, at roadsides just inland from tide-flats. Comment
  CAS-BOT-BC99064  Symphyotrichum chilense Peter Rubtzoff 1975-10-4 8416 San Mateo San Bruno Mountain - on ridge northwest of Fog Forest Comment
  SJSU11814  Symphyotrichum subspicatum R. R. Regnart 1961-5-7 San Mateo by Purissima Creek Road by Purissima Creek 0.5 mi E of Purissima Comment
  SJSU15440  Tanacetum parthenium Toni Corelli 2011-8-31 717 San Mateo Pescadero State Beach and Marsh Natural Preserve, Round Hill Trail at the end of Water Lane Road 5 Comment
  JROH1285  Taraxacum officinale John H. Thomas 1969-4-12 14886 San Mateo Jasper Ridge Biological Preserve, Stanford University; picnic area below dam Comment
  JROH2996  Taraxia ovata W. R. Dudley 1894-3-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; ridge between Portola Valley and Jasper Ridge E. of McDonald's Ranch Comment
  RSA176767  Tellima grandiflora John H. Thomas 1961-5-5 9209 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  UCR121562  Tellima grandiflora George K. Helmkamp, E. A. Helmkamp 1999-6-28 4971 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  UCR122916  Tellima grandiflora George K. Helmkamp, E. A. Helmkamp 2001-6-2 6786 San Mateo San Francisco Bay Region, Purisima Creek Road, east of Half Moon Bay at Purisima Creek, 3.2 miles east of CA Hwy 1 244 Comment
  UCR56173  Tellima grandiflora Ray Langham 1966-4-3 135 San Mateo [NW] of La Honda, King's Grove [apparently vicin. of Tunitas Creek Rd., Mitchell Creek drainage] 229 Comment
  CAS-BOT-BC447476  Tellima grandiflora Philip C. Wheeler; Elizabeth McClintock 1967-6-11 s.n. San Mateo North facing brushy slope to south of new Guadalupe Parkway just before it meets Radio Road Comment
  UC766175  Tetragonia tetragonoides R. F. Hoover 1941-2-12 4754 San Mateo Half Moon Bay Comment
  UCD96952  Tetragonia tetragonoides Beecher Crampton 1962-6-11 6517 San Mateo Pacifica, Rockaway Beach, State Hwy. 1. Comment
  JROH3508  Thalictrum fendleri var. polycarpum John H. Thomas 1961-4-29 9196 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC399848  Thalictrum polycarpum Peter Rubtzoff 1953-5-14 1350 A San Mateo Pilarcitos Creek Canyon 1 to 2 miles downstream from Pilarcitos Lake Comment
  CDA3888  Thlaspi arvense W. Davis 1967-4-24 San Mateo Southern Pacific Railroad, San Mateo. 0 Comment
  JROH1606  Thysanocarpus curvipes John Hunter Thomas 1986-4-5 23927 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC66680  Thysanocarpus curvipes Dr. A. Kellogg; W. G. W. Harford 1868-1-1 49 San Mateo Unspecified. Comment
  RSA0039332  Thysanocarpus curvipes var. curvipes Carl B. Wolf 1929-5-17 3716 San Mateo 1 mi. west of Skyline Drive on Alpine Road. Comment
  JROH399  Torilis nodosa John Hunter Thomas 1986-6-7 24085 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH402  Torilis nodosa John Hunter Thomas 1989-5-5 24656 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH400  Torilis nodosa John Hunter Thomas 1988-4-28 24416 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH184  Toxicodendron diversilobum John H. Thomas 1974-4-6 17091 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4759  Toxicoscordion fremontii John H. Thomas 1977-4-8 18522 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3395  Trientalis latifolia John Hunter Thomas 1981-5-5 20538 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18333  Trientalis latifolia Carl B. Wolf 1929-5-6 3702 San Mateo Near E base La Honda Grade, Santa Cruz Mts. Comment
  UC631539  Trifolium albopurpureum var. albopurpureum A. A. Heller 1907-5-23 8554 San Mateo back of San Mateo (on Half Moon Bay Rd) Comment
  JROH2235  Trifolium barbigerum Le Roy Abrams 1904-5-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET881659 Image available Trifolium bicephalum A. D. E. Elmer 1903-1 4812 San Mateo San Pedro. Comment
  RSA633305  Trifolium bifidum Michael A. Vincent, Ethan H. Freid, Karl Vincent 1998-4-9 8201 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
  UC725794  Trifolium bifidum var. decipiens A. A. Heller 1907-5-23 8559 San Mateo near San Mateo (on Half Moon Bay Rd) Comment
  SBBG33500  Trifolium ciliolatum A. D. E. Elmer -May-1903 San Mateo Portola Comment
  UCR101649  Trifolium dubium George K. Helmkamp, E. A. Helmkamp 1998-5-16 3744 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  SJSU7635  Trifolium dubium D. D. Kohler 1963-4-11 San Mateo by Skyline Blvd, 3 mi N of San Bruno Comment
  JROH2285  Trifolium fucatum John H. Thomas 1957-4-16 6653 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  SBBG3006  Trifolium fucatum L. S. Rose 1935-5-4 San Mateo open hills, Burlingame Comment
  UC1130024  Trifolium fucatum H. S. Yates 1935-5-8 5226 San Mateo 1 mi e Franklin Point; Santa Crus quad 15 Comment
  SJSU7974  Trifolium fucatum S. H. Anderson 1962-4-15 San Mateo Burlingame Hills Comment
  POM223326  Trifolium fucatum var. fucatum L. S. Rose 1935-5-4 35152 San Mateo Burlingame. Comment
  UCSC005240  Trifolium fucatum var. fucatum Randall Morgan 1995-6-6 2723 San Mateo Pescadero State Beach, Highway 1 opposite Pescadero Road Comment
  SJSU15442  Trifolium glomeratum Toni Corelli 2010-5-13 602 San Mateo Pedro Point Headlands, Pacifica, CA, disturbed area along South Ridge Trail, west of Hwy. 1 100 Comment
  RSA10398  Trifolium gracilentum Carl B. Wolf 1927-6-15 2172 San Mateo Along Skyline Drive, 8 mi. S of San Francisco. Comment
  JROH2351  Trifolium subterraneum John Hunter Thomas 1983-4-3 21312 San Mateo Jasper Ridge Biological Preserve, Stanford University; roadside near Searsville Lab Comment
  JROH2349  Trifolium subterraneum John Hunter Thomas 1982-5-18 20936 San Mateo Jasper Ridge Biological Preserve, Stanford University; old racing oval Comment
  UC2048924  Trifolium suffocatum Neal Kramer 2016-4-17 2169 b San Mateo Bean Hollow State Beach trail north of parking area. Comment
  UC729682  Trifolium variegatum Carl B. Wolf 1929-4-24 3657 San Mateo sw end Jasser Ridge; back of Stanford University 152 Comment
  RSA119330  Trifolium variegatum var. variegatum S. S. Tillett, I. Sternbacback 1956-6-24 538 San Mateo Behind (n.) Portola Camp Store, just outside Portola State Park 396 Comment
  HSC100120  Trifolium willdenovii J. Wendell Howe 1930-4-11 San Mateo Menlo Park Comment
  JROH2392  Trifolium willdenovii G. C. Kimber & Lucile Roush 1918-5-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2393  Trifolium willdenovii John H. Thomas 1955-5-6 5008 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM277649  Trifolium willdenovii Lyman D. Benson 1930-5-3 2095 San Mateo Roadside on La Honda Grade. Above Woodside. Santa Cruz Mtn range. 305 Comment
  JROH2409  Trifolium willdenovii John Hunter Thomas 1985-4-11 23520 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam and bridge across San Francisquito Creek Comment
  UCSC008228  Trifolium willdenovii Randall Morgan 1995-6-22 2799 San Mateo Water Tank Creek near its confluence with Pescadero Creek Comment
  SEINET10928613  Trifolium wormskioldii var. wormskioldii Adolph D. E. Elmer Elmer 4644 San Mateo Lake San Andreas Comment
  JROH4724  Trillium chloropetalum John H. Thomas 1971-4-3 15747 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  JROH4733  Trillium chloropetalum John Hunter Thomas 1981-2-14 20225 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam area, redwood area Comment
  UC142121  Trillium chloropetalum Michener and Bioletti March, 1893 San Mateo near Colma Comment
  UC844442  Trillium chloropetalum Lewis S. Rose 1937-3-14 37001 San Mateo Emerald Lake 198 Comment
  JROH4732  Trillium chloropetalum John Hunter Thomas 1980-4-5 19858 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  CAS-BOT-BC521008  Trillium chloropetalum var. chloropetalum James McMurphy 1902-3-22 s. n. San Mateo Near Portola 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
  POM290752  Trillium chloropetalum var. giganteum Lyman Benson 1929-3-2 989 San Mateo Hill above Lake Searsville. Comment
  CAS-BOT-BC521066  Trillium chloropetalum var. giganteum Elizabeth McClintock 1965-4-11 s.n. San Mateo San Bruno Mountain: Mouth of Colma Canyon near Indian Head Rock 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-BC521206  Trillium chloropetalum var. giganteum C. F. Leithold 1894-3-26 s.n. San Mateo Santa Cruz Peninsula: Lobitos Creek Comment
  CAS-BOT-BC133431  Trillium ovatum John Hunter Thomas 1954-4-3 3822 San Mateo Along San Gregorio Creek about 1.5 miles west of La Honda 106 Comment
  CAS-BOT-BC133442  Trillium ovatum Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  CAS-BOT-BC133448  Trillium ovatum L. R. Abrams 1898-3-5 s.n. San Mateo Kings Mt. Comment
  UC765421  Trillium ovatum R. F. Hoover 1939-3-3 3895 San Mateo above Portola (on La Honda Rd.) Comment
  UCR55868  Trillium ovatum Ray Langham 1966-4-3 121 San Mateo [NW] of La Honda, King's Grove [apparently vicin. of Tunitas Creek Rd., Mitchell Creek drainage] 229 Comment
  JROH1649  Triodanis biflora John Hunter Thomas 1979-6-12 19586 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC238563  Triphysaria floribunda W. R. Dudley 1893-5-1 s.n. San Mateo The Santa Cruz Peninsula. North of San Bruno Comment
  UC311192  Triphysaria floribunda A. D. E. Elmer April, 1903 4522 San Mateo South San Francisco Comment
  CAS-BOT-BC238571  Triphysaria floribunda W. R. Dudley 1897-5-8 s.n. San Mateo The Santa Cruz Peninsula. By road above Belmont School Comment
  SJSU16036  Triphysaria versicolor subsp. versicolor Toni Corelli, John Rawlings 2016-4-29 1767 San Mateo Along Atkinson Bluff Trail and throughout Cascade Field, north of Cascade Cr. Trail, in Ano Nuevo State Park 11 Comment
  JROH4737  Triteleia hyacinthina John H. Thomas 1967-6-1 12961 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4740  Triteleia hyacinthina John Hunter Thomas 1978-5-12 19201 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC526362  Triteleia laxa J. H. Thomas 1954-6-11 4291 San Mateo About 1 mile north of Pigeon Point 30 Comment
  CAS-BOT-BC526368  Triteleia laxa Ned Cahill 1974-5-30 311 San Mateo Near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City Comment
  IRVC9055  Triteleia laxa P. W. Rundel 1963-6-11 1118 San Mateo San Fransisco Bay drainage area; Old La Honda Road. Santa Cruz Mountain Range 305 Comment
  SEINET7951747 Image available Typha angustifolia I. L. Wiggins 1929-7-4 3803 San Mateo near Pescadero Beach Comment
  JROH5760  Ulex europaeus John Rawlings, Bob Dodge 2016-3-1 1676 San Mateo Jasper Ridge Biological Preserve, Stanford University; hidden in plain view adjacent to the Bike Bowl 50 m west of Sun Field Station visitor parking. Comment
  RSA149146  Ulex europaeus John H. Thomas 1961-5-7 9322 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  RSA625696  Ulex europaeus Don Pendleton 1993-11-20 s.n. San Mateo Daly City at 222 Hickey Boulevard Comment
  JROH4226  Ulmus minor John Hunter Thomas 1992-5-14 25222 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat ramp Comment
  JEPS121560  Umbellularia californica Adam C. Schneider with C. Matt Guilliams 2013-3-9 39 San Mateo Crystal Springs Reservoir Comment
  JEPS40102  Umbellularia californica W. L. Jepson 1922-3-19 9541 San Mateo Millbrae 182 Comment
  JROH135  Umbellularia californica John H. Thomas 1959-8-22 8081 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  JROH1298  Urospermum picroides Toni Corelli 2005-5-9 287 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along road F 154 Comment
  CAS-BOT-BC403970  Urtica dioica subsp. gracilis Dennis W. Woodland 1970-8-14 1624 San Mateo At Stage Road and Seaside School Road on NE corner Comment
  CAS-BOT-BC412534  Urtica urens John H. Thomas 1967-5-27 11638 San Mateo Menlo Park, near the Southern Pacific train station Comment
  SEINET12036188  Urtica urens Unknown 1932-1 9160 San Mateo San Madero Creek Comment
  CAS-BOT-BC199350  Vaccinium ovatum W. R. Dudley 1898-4-24 s.n. San Mateo El Corte Madera Comment
  CAS-BOT-BC199357  Vaccinium ovatum Reed C. Rollins 1942-4-30 3003 San Mateo S.E. slope of San Bruno Hills, about 1 mile west of Brisbane Comment
  JEPS58746  Vaccinium ovatum A. D. E. Elmer Apr 1903 4561 San Mateo Kings Mountain Comment
  POM131827  Vaccinium ovatum Edward L. Greene 1902-1-15 242 San Mateo West side King's Mountain. Comment
  SD38450  Vaccinium ovatum Edith A. Purer 1933-5-24 3642 San Mateo Skyline Boulevard. Comment
  UCSC011286  Vaccinium ovatum Unknown 1972-6-4 s.n. San Mateo Waddell Creek area Comment
  RSA112361  Vaccinium parvifolium W. R. Dudley 1895-9-15 s.n. San Mateo El Corte de Madera, west side., Santa Cruz Range. Comment
  CAS-BOT-BC76138  Vancouveria planipetala A. D. E. Elmer 1903-5-1 4922 San Mateo Iverson's Place. Comment
  JROH4147  Verbascum thapsus John Hunter Thomas 1981-9-24 20746 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA187475  Verbascum thapsus John H. Thomas 1958-9-15 7477 San Mateo 3 miles north of Woodside along Canada Rd. 122 Comment
  RSA181222  Verbena lasiostachys var. lasiostachys John H. Thomas 1964-6-19 10428 San Mateo 0.9 miles S of Tunitas Creek near Coast Hwy, 61 Comment
  RSA18513  Verbena lasiostachys var. lasiostachys Carl B. Wolf 1927-7-14 607 San Mateo Summit of Kings Mountain Rd. Comment
  UC770046  Verbena lasiostachys var. scabrida L. W. Reinecke 1939-6-13 San Mateo field by Saphire St Redwood City Comment
  UC306601  Veronica peregrina subsp. xalapensis A. D. E. Elmer June, 1903 4268 San Mateo Crystal Springs Lake Comment
  POM127023  Vicia americana var. americana R. L. Pendleton 1907-4-20 608 San Mateo Lake Merced 30 Comment
  SD2652  Vicia americana var. truncata Unknown Jun 1925 San Mateo Near La Honda Comment
  JROH2429  Vicia benghalensis John Hunter Thomas 1978-5-23 19227 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15772  Vicia benghalensis Toni Corelli 2010-6-1 635 San Mateo Wavecrest, west of Highway 1 in Half Moon Bay. 24 Comment
  CHSC23153  Vicia gigantea Robert A. Schlising 1963-2-23 2435 San Mateo Coast Range. 21 miles north of Davenport, along Highway 1. Comment
  POM16883  Vicia gigantea Baker 1902-4-12 506 San Mateo San Gregorio Comment
  JROH2435  Vicia sativa subsp. nigra John H. Thomas 1975-4-19 17798 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2454  Vicia villosa subsp. varia John Rawlings 2012-5-15 1114 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along road B vicinity of Dennis Martin Marker. 79 Comment
  UC729850  Vicia villosa subsp. varia Carl B. Wolf 1929-5-27 3737 San Mateo back of Stanford University (Los Trancos Creek); Los Trancos Creek Comment
  JROH425  Vinca major John Hunter Thomas 1985-5-2 23577 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC264031  Viola adunca W. R. Dudley 1896-12-31 s.n. San Mateo Santa Cruz Mountain Peninsula. Between San Gregorio and Pescadero, near sea Comment
  CAS-BOT-BC264048  Viola adunca John H. Thomas 1964-4-30 10354 San Mateo San Bruno Mountain in the N part of county 396 Comment
  UC19283  Viola glabella J. Burtt Davy 1895-4-20 1056 San Mateo Pilarcitos Creek Comment
  CAS-BOT-BC536569  Viola glabella Herbert L. Mason 1927-4-23 3672 San Mateo La Honda Comment
  CHSC56606  Viola ocellata Steven Triano 1988-5-24 171 San Mateo Ca 0.1 mi w of Old La Honda Road near Martin Creek and 0.4 air miles e of Skylonda. 381 Comment
  UCR64473  Viola ocellata David D. Keck 1932-6-1 1495 San Mateo Coast Range; Santa Cruz Mtns, above Woodside on La Honda road 366 Comment
  RSA130977  Viola ocellata Lucile Roush 1918-3-31 s.n. San Mateo Santa Cruz Peninsula; Sierra Morena. Comment
  RSA412720  Viola pedunculata Glenn A. Gorelick 1967-4-15 s.n. San Mateo San Bruno Mts. overlooking Daly City near San Francisco. 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
  SBBG34009  Viola pedunculata L. S. Rose 1968-3-26 68010 San Mateo S base of San Bruno Mtn; South San Francisco 30 Comment
  SEINET191584 Image available Viola pedunculata L. S. Rose 1941-3-20 41047 San Mateo Milbrae 122 Comment
  UCR168513  Viola sempervirens David D. Keck 1932-3-6 1398 San Mateo Santa Cruz Mountains, La Honda Rd., 1 mile SE of Skyline Blvd. 274 Comment
  RSA130690  Viola sempervirens W. R. Dudley 1894-7-7 s.n. San Mateo Bear Gulch Road. The Santa Cruz Mtn Peninsula. Comment
  CAS-BOT-BC199818  Vulpia Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  CAS-BOT-BC199852  Vulpia bromoides W. R. Dudley 1899-5-14 s.n. San Mateo Top of Sneath Ranch Hill