Search Results — 2000 specimen records retrieved (1384 records with coordinates)
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Results for search: County=SAN MATEO; Source=All;   

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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  NY679470  Abronia umbellata L. S. Rose 1935-10-12 35654 San Mateo Salada. 3 Comment
  CAS-BOT-BC233753  Abronia umbellata L. R. Abrams 1909-8-2 4276 San Mateo Pebble Beach Hotel, Pescadero, Santa Cruz Peninsula Comment
  CAS-BOT-BC451135  Acaena pinnatifida var. californica A. D. E. Elmer 1903-4-1 4823 San Mateo San Bruno Hills Comment
  CAS-BOT-BC451128  Acaena pinnatifida var. californica Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo Near old quarry on area adjacent to the mouth of Colma Canyon; San Bruno Mountains Comment
  CAS-BOT-BC219603  Acanthomintha duttonii Harry A. Dutton; Miss. H. A. Walker 1915-5-26 3819 San Mateo Near the Menlo Golf Club Comment
  UC729637  Acanthomintha duttonii Carl B. Wolf 1929-5-24 3723 San Mateo above Upper Emerald Lake (back of Redwood City) Comment
  JROH153  Acer macrophyllum Le Roy Abrams 1902-4-6 2314 San Mateo Jasper Ridge Biological Preserve, Stanford University 110 Comment
Read comments
Feb 20 2015
  JROH158  Acer macrophyllum John H. Thomas 1975-6-5 17948 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Searsville Dam 91 Comment
  RSA116908  Acer macrophyllum W. R. Dudley 1906-6-14 s.n. San Mateo San Francisquito Creek, near Cedro Cottage Stanford University Comment
  RSA131008  Acer macrophyllum Josephine Randall 1908-3-22 s.n. San Mateo Corte de Madera Canyon near Alpine Road Comment
  RSA15275  Acer macrophyllum Carl B. Wolf 1927-4-3 241 San Mateo 1 mile above La Honda. Santa Cruz Mountains. Comment
  CAS-BOT-BC333212  Acer macrophyllum W. R. Dudley 1906-6-30 s.n. San Mateo Santa Cruz Mountain Peninsula. LosTrancos Road near Las Trancos Dairy Comment
  JEPS85553  Acer macrophyllum Craig Dremann 1986-9-13 336 San Mateo at La Honda creek bridge (mile 8.12) and Cal. Hwy 84 La Honda, at La Honda creek bridge (next to burned-out Boots and Saddle Lodge, La Honda) Comment
  SD41293  Acer macrophyllum Delzie Demaree 1932-4-9 8984 San Mateo Streams near Gov. Rolph Estate Comment
  JROH171  Acer negundo John Hunter Thomas 1982-11-6 21217 San Mateo Jasper Ridge Biological Preserve, Stanford University. On causeway 106 Comment
  UCD117104  Acer negundo R. E. Dengler 1960-4-20 17 San Mateo near Corte de Madera Creek, 0.5 mile from its drainage into Searseville Lake, Jasper Ridge, Stanford Biological Reserve. 375 Comment
  POM222810  Acer negundo subsp. californicum S. S. Berry 1909-3-31 s.n. San Mateo San Francisquito Creek. 61 Comment
  CAS-BOT-BC21579  Achillea millefolium John H. Thomas 1963-5-20 10141 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC28767  Achillea millefolium H. M. Hall 1923-10-26 847 -C San Mateo Collected live in Montara, planted in Stanford Gardens and later vouchered from there. 0 Comment
  CHSC39257  Achillea millefolium Thomas B. Croat 1966-6-20 1997 San Mateo I mile N of Montara, sandy banks along Pacific. Comment
  JROH444  Achillea millefolium John H. Thomas 1975-6-5 17943 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack 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
  CAS-BOT-BC21578  Achillea millefolium John H. Thomas 1971-5-2 15819 San Mateo Near intersection of Canada Road and Edgewater [sic] Road, about three miles westward from Redwood City 152 Comment
  JROH461  Achyrachaena mollis John H. Thomas 1970-4-28 15607 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI12966  Acmispon glaber var. glaber Robert F. Hoover 1964-9-10 9290 San Mateo Devil's slide, between Pedro-Point and Montara Comment
  JROH2081  Acmispon strigosus John Hunter Thomas 1983-4-21 21634 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2102  Acmispon wrangelianus John Hunter Thomas 1978-4-25 19152 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2103  Acmispon wrangelianus John Hunter Thomas 1980-4-10 19874 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD35770  Acmispon wrangelianus Beecher Crampton 1962-6-11 6491 San Mateo Pacifica, north city limits, along State Hwy. 1 just southwest of its junction with Skyline Blvd. Comment
  SEINET10962249  Actaea rubra Adolph D. E. Elmer Elmer 4703 San Mateo Comment
  SEINET10573362  Actaea rubra Ernest A. McGregor McGregor s.n. San Mateo Santa Cruz Mountain Peninsula Comment
  SDSU2646  Adelinia grandis D. F. Howe 1967-4-14 4349 San Mateo San Francisco Game Reserve near San Bruno. 91 Comment
  UC306653  Adenocaulon bicolor A. D. E. Elmer 1903-6-1 4300 San Mateo Pescadero Creek Comment
  JROH3588  Adenostoma fasciculatum var. fasciculatum John H. Thomas 1975-6-5 17939 San Mateo Jasper Ridge Biological Preserve, Stanford University. Chaparral near shack 161 Comment
  RSA453174  Adenostoma fasciculatum var. fasciculatum L. S. Rose 1935-6-9 35212 San Mateo Emerald lake, W. of Redwood City. Comment
  SEINET3153091  Adiantum jordanii L. S. Rose 1939-5-13 39113 San Mateo Canyon W of Burlingame 61 Comment
  JROH2708  Aesculus californica John H. Thomas 1971-5-30 15972 San Mateo Jasper Ridge Biological Preserve, Stanford University 120 Comment
  POM136951  Aesculus californica A. D. E. Elmer 1903-06 4258 San Mateo Crystal Springs Lake. Comment
  JEPS19378  Agoseris apargioides Rimo Bacigalupi and L. R. Heckard, Tsan-Iang Chuang 1937-4-11 73 San Mateo along, (s of San Francisco) Skyline Boulevard; San Francisco Comment
  SEINET7076092  Agoseris apargioides var. eastwoodiae A. G. Vestal 1955-5-31 s.n. San Mateo Near Pebble Beach off Route 1. (NAD 27; 37.2369? deg. North Latitude, 122.4153? deg. West Longitude, UTM Zone 10, 551863mE, 4121109mN). [GPS Coordinate: WGS84/NAD83]. Comment
  CAS-BOT-BC23024  Agoseris grandiflora var. grandiflora A. D. E. Elmer 1903-4-1 4490 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC46128  Agoseris heterophylla Ned Cahill 1974-4-29 212 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
  POM52819  Agoseris hirsuta A. D. E. Elmer 1903-04 s.n. San Mateo Cemeteries Comment
  UCR198062  Agrostis californica Beecher Crampton 1962-6-11 6489 San Mateo San Francisco Peninsula, northern city limits of Pacifica along Calif. Hwy 1, just southwest of its junction with Skyline Boulevard 61 Comment
  CAS-BOT-BC127465  Agrostis densiflora Beecher Crampton 1957-6-9 4166 San Mateo State Highway 1, ca. 5-6 miles south of San Francisco. Comment
  SJSU15843  Agrostis densiflora John Rawlings, Toni Corelli 2014-8-13 1205 San Mateo Coastal bluff just west of Hwy 1, north of Pomponio State Beach 36 Comment
  UCD52248  Agrostis exarata var. microphylla Collector unknown 1925-6-15 2115 San Mateo Pescadero - Santa Cruz Rd. Comment
  CAS-BOT-BC139462  Agrostis hallii Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain. Below parking lot. Comment
  CAS-BOT-BC139463  Agrostis hallii Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountains. Canyon east of quarry. Comment
  JROH4802  Agrostis pallens John Rawlings 2011-6-14 1073 San Mateo Jasper Ridge Biological Preserve, Stanford University. Uphill side of Trail 5. 119 Comment
  JROH4803  Agrostis pallens John Rawlings 2013-5-21 1162 San Mateo Jasper Ridge Biological Preserve, Stanford University. Uphill from power poles near path to Rattlesnake Rocks from Rd. D. 133 Comment
  JROH4804  Agrostis stolonifera John Rawlings 2004-11-10 1001 San Mateo Jasper Ridge Biological Preserve, Stanford University. West end of Leonard's bridge, to right as one steps onto bridge, at base of bridge. 107 Comment
  UCD53588  Agrostis stolonifera Malcolm A. Nobs; S. Galen Smith 1949-8-25 1550 San Mateo Sharp Park. Comment
  CDA38392  Agrostis viridis Wm. Davis 1957-8-16 s.n. San Mateo Nursery; Millbrae. 0 Comment
  JROH4156  Ailanthus altissima John H. Thomas 1980-11-18 20172 San Mateo Jasper Ridge Biological Preserve, Stanford University 98 Comment
  JROH4157  Ailanthus altissima John H. Thomas 1980-11-18 20172 San Mateo Jasper Ridge Biological Preserve, Stanford University 98 Comment
  JROH4825  Aira caryophyllea John H. Thomas 1968-5-3 14447 San Mateo Jasper Ridge Biological Preserve, Stanford University 172 Comment
  JROH4836  Aira caryophyllea John Rawlings 2013-4-19 1152 San Mateo Jasper Ridge Biological Preserve, Stanford University. Mossy verge of Trail 11 through chaparral. 144 Comment
  POM199071  Aira caryophyllea A. D. E. Elmer 1903-05 4705 San Mateo Crystal Springs Lake. Comment
  RSA145198  Aira caryophyllea John H. Thomas 1958-3-19 7050 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 30 Comment
  RSA591524  Aira caryophyllea D. D. Keck 1932-3-6 1480 San Mateo Open hillside just west of Millbrae Highlands. 15 Comment
  CAS-BOT-BC138235  Aira caryophyllea var. caryophyllea Elizabeth McClintock 1964-4-17 s.n. San Mateo San Bruno Mountain. Slope on top of mountain. Comment
  CAS-BOT-BC445394  Alisma plantago-aquatica John Thomas Howell 1926-10-9 2219 San Mateo Near Lake San Andreas Comment
  JROH4566  Allium John H. Thomas 1976-5-26 18153 San Mateo Jasper Ridge Biological Preserve, Stanford University 148 Comment
  JROH4542  Allium amplectens John Hunter Thomas 1980-5-6 19928 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4543  Allium amplectens John H. Thomas 1985-5-7 23645 San Mateo Jasper Ridge Biological Preserve, Stanford University. Serpentine grassland beyond blue oak woodland Comment
  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
  CAS-BOT-BC467298  Allium dichlamydeum Barrett Anderson; Peter Rubtzoff 1988-4-26 3675 San Mateo San Bruno Mountain. Radio Road south of Guadalupe Parkway. 365 Comment
  CAS-BOT-BC469035  Allium falcifolium Ira L. Wiggins 1949-4-23 12049 San Mateo Near Emerald Lakes, west of Redwood City. Comment
  JROH4555  Allium lacunosum var. lacunosum H. J. Dengler 1972-4-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. S.W. of '"road" on serpentine, and E. of Mimulus Gully, opp. oaks on sep., top of J.R. Comment
  JROH4567  Allium lacunosum var. lacunosum John Hunter Thomas 1978-4-20 19082 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC472790  Allium neapolitanum J. Ed. McClellan; Bonnie McClellan 1972-4-1 4 San Mateo Bernal Ave, Burlingame Comment
  CDA928  Allium peninsulare D. G. Kelch, B. G. Baldwin, Sue Bainbridge, Abigail Moore 2005-6-21 5 .366 San Mateo S.F. Water District land, near Spring Valley. NE corner Pilarcitos Lake. Comment
  POM169852  Allium peninsulare var. franciscanum A. D. E. Elmer 1903-06 s.n. San Mateo San Mateo Comment
  POM222895  Alnus rhombifolia S. S. Berry 1909-2-27 s.n. San Mateo San Francisquito Creek. 61 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
  CAS-BOT-BC137920  Alopecurus saccatus David D. Keck 1932-5-6 1472 San Mateo Burlingame. North city limits. Comment
  CAS-BOT-BC137919  Alopecurus saccatus W. R. Dudley 1908-6-26 s.n. San Mateo Santa Cruz Mountain Peninsula. Edge of pond west of Scofield Pond. Coal Mine Ridge. Comment
  JEPS23931  Amaranthus californicus L. R. Abrams 1902-9-2 2995 San Mateo Crystal Lake Comment
Read comments
Sep 5 2011
  POM164507  Amaranthus californicus C. F. Baker 1902-10-20 1855 San Mateo Searsville. Comment
  CAS-BOT-BC523926  Amaranthus deflexus A. C. Sanders 2015-12-27 41888 San Mateo San Francisco Peninsula: San Bruno, along Hwy 82 between 380 Fwy and San Bruno Ave. 15 Comment
  UCR242715  Amaranthus deflexus A. C. Sanders 2012-11-11 40517 San Mateo SF Bay Area, Daly City near Colma, between Junipero Serra Blvd. and San Pedro Rd. on Washington St. 56 Comment
  CAS-BOT-BC44926  Ambrosia chamissonis W. R. Dudley 1908-10-4 s.n. San Mateo Laguna Salada Comment
  SD39990  Ambrosia chamissonis Edith A. Purer 1932-7-18 4011 San Mateo Half Moon Bay on sand dunes Comment
  RSA123305  Ambrosia chamissonis N. K. Carlson 1935-7-5 120 San Mateo [Unspecified] 0 Comment
  SEINET11855123  Ambrosia chamissonis L. S. Rose 1935-1 San Mateo Granada 3 Comment
  RSA93926  Ambrosia chamissonis var. chamissonis F. W. Peirson 1925-9-13 6427 San Mateo Rockaway beach. Comment
  CAS-BOT-BC55527  Ambrosia psilostachya W. R. Dudley 1902-9-21 s.n. San Mateo On causeway over Crystal Spring Reservoir Comment
  CAS-BOT-BC136831  Amelanchier utahensis Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  RSA116698  Anagallis arvensis W. R. Dudley 1900-3-17 s.n. San Mateo Bank near Ocean, South slope montara mts. Comment
  CAS-BOT-BC45183  Anaphalis margaritacea Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain, on slope at flower garden adjacent to April Brook. Comment
  CAS-BOT-BC45185  Anaphalis margaritacea Elizabeth McClintock; Phillip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain, slope below and east of Nike station. Comment
  CAS-BOT-BC45267  Ancistrocarphus filagineus LeRoy Abrams 1904-4-10 s.n. San Mateo Woodside to Crystla Springs at the junction of Redwood Rd. Comment
  JROH188  Angelica tomentosa John Hunter Thomas 1985-5-22 23676 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC000808  Anthemis cotula G. E. Sindel 1935-7-25 312 San Mateo 0.25 mile W. of Pescadero Pescadero - Santa CruzQuadrangle 15 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
  JROH498  Anthemis cotula John H. Thomas 1963-6-23 10173 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of ridge Comment
  CAS-BOT-BC280638  Anthoxanthum occidentale L. R. A. 1902-1-7 2258 San Mateo Kings Mountain Comment
  CAS-BOT-BC280640  Anthoxanthum occidentale Elmer I. Applegate 1895-3-9 815 San Mateo Near summit of Coast range west of Stanford University Comment
  CAS-BOT-BC280647  Anthoxanthum occidentale L. R. A. 1902-1-7 2258 San Mateo Kings Mountain Comment
  CAS-BOT-BC280649  Anthoxanthum occidentale A. D. E. Elmer 1902-3-1 4124 San Mateo King's Mt. Comment
  JROH200  Anthriscus caucalis John H. Thomas 1975-4-30 17843 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
  CAS-BOT-BC454477  Aphanes occidentalis John H. Thomas 1964-4-30 10371 San Mateo San Bruno Mountain in Northern part of county. 396 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
  JROH3609  Aphanes occidentalis John Hunter Thomas 1983-4-14 21405 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC454479  Aphanes occidentalis Walter & Irja Knight 1965-3-21 949 San Mateo North Power Line Ridge, San Bruno Mountain Comment
  RSA131269  Apocynum pumilum var. rhomboideum H. L. Mason 1931-7-14 s.n. San Mateo Pescadero Creek, La Honda Road. Comment
  UC1285700  Aponogeton distachyos Rolf Benseler 1966-4-10 San Mateo 100 yards s of King Drive (formerly Chinese Cemetery Road), e side of Highway No. 5, Skyline Boulevard, northern end of San Mateo County King Drive; e side Highway No. 5, Skyline Boulevard Comment
  CAS-BOT-BC392062  Aquilegia eximia A. D. E. Elmer 1903-6-1 4271 San Mateo Crystal Springs Lake Comment
  UCSB18280  Aquilegia eximia Muirhead, M. 1964-4-17 San Mateo Crocker Estate, Hillsborough 60 Comment
  POM176876  Aquilegia formosa var. truncata Josephine Randall 1908-4-12 s.n. San Mateo Kings Mt. Road Comment
  RSA87797  Aquilegia formosa var. truncata L. R. Abrams 1902-4-13 23463 San Mateo Crystal Spring. Comment
  SEINET10454399  Aralia californica Mary Susan Taylor 1978-8-30 Taylor 1853 San Mateo Comment
  CAS-BOT-BC24156  Arctostaphylos John H. Thomas 1967-2-9 12402 San Mateo Montara Mountain in Northern part of county. Between Pacifica and Montara. Comment
  JROH5920  Arctostaphylos Toni Corelli 2004-4-21 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; along driveway of private lot immediately east of Goya Gate along the Preserve's boundary fence Comment
  SEINET11989295  Arctostaphylos S. W. Edwards 1982-1 s.n. San Mateo Foothill Park Comment
  CAS-BOT-BC24171  Arctostaphylos andersonii Gary D. Wallace 1974-12-28 1375 San Mateo Northern Santa Cruz Mtns. S of Upper Crystal Springs Res. along Skyline Blvd. 2.8 mimi N of jct. of King Mtn. Rd. oppos 640 Comment
  CAS-BOT-BC24172  Arctostaphylos andersonii John H. Thomas 1968-12-18 14876 San Mateo Along Skyline Blvd. between Gulch Road and la Honda Rd. 457 Comment
  SEINET11988251  Arctostaphylos andersonii Unknown 1959-1 324 San Mateo 1.2 mi from junction of CA 5 on Kings Mt. Road Comment
  SEINET12001814  Arctostaphylos andersonii W. R. Dudley 1906-1 6 San Mateo near Crystal Springs Lake, Santa Cruz Mts., Santa Cruz Peninsula Comment
  SEINET11987130  Arctostaphylos andersonii var. imbricata W. Knight, Knight, I. 1980-1 3828 San Mateo Tilden Botanic Garden, Berkeley, originally from windswept San Bruno Mountain 305 Comment
  SEINET11987183  Arctostaphylos andersonii var. imbricata W. Knight, Knight, I. 1981-1 3931 San Mateo Tilden Botanic Garden, Berkeley, originally from San Bruno Mt Comment
  CAS-BOT-BC23544  Arctostaphylos crustacea J. I. McMurphy 1906-3-9 7 San Mateo King's Mt., Santa Cruz Mts. 487 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
  JROH1925  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1974-6-30 17463 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1936  Arctostaphylos crustacea subsp. crustacea Toni Corelli 2006-1-20 308 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9 134 Comment
  JROH1942  Arctostaphylos crustacea subsp. crustacea John Hunter Thomas 1983-7-20 22893 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1943  Arctostaphylos crustacea subsp. crustacea John Hunter Thomas 1987-4-30 24210 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1944  Arctostaphylos crustacea subsp. crustacea John Hunter Thomas 1987-4-30 24211 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC24728  Arctostaphylos glandulosa subsp. glandulosa Elizabeth McClintock 1972-3-26 s.n. San Mateo Middle Buckeye Canyon, San Bruno Mtn. Comment
  CAS-BOT-BC24733  Arctostaphylos glandulosa subsp. glandulosa Walter Knight; Roger Raiche 1982-1-23 4416 San Mateo San Bruno Mtn. Up Buckeye Canyon on Oak Ridge. 91 Comment
  CAS-BOT-BC24735  Arctostaphylos glandulosa subsp. glandulosa Walter Knight; Roger Raiche 1982-1-23 4421 San Mateo San Bruno Mtn. Buckeye Canyon on Oak Ridge. 103 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-BC24499  Arctostaphylos imbricata B. A. Stein 1981-3-1 442 San Mateo San Bruno Mt., ne. summit ridge along Radio Rd. 396 Comment
  OBI14661  Arctostaphylos imbricata Robert F. Hoover 1964-4-24 8742 San Mateo San Bruno Mt Comment
  SEINET11989284  Arctostaphylos montaraensis W. Knight, Knight, I.; McClintock, E. 1982-1 4446 San Mateo Pacific Rock area, San Bruno Mt Comment
  CAS-BOT-BC44708  Arctostaphylos regismontana Walter Knight; Irja Knight 1964-9-14 831 San Mateo On Peak Mt. - Western sector 304 Comment
  CAS-BOT-BC44709  Arctostaphylos regismontana Walter Knight; Irja Knight; James B. Roof 1967-1-19 2058 San Mateo Whipple Road, near Crystal Springs Lakes Comment
  OBI14513  Arctostaphylos regismontana Lewis S. Rose 1961-2-16 61003 San Mateo Kings Mountain 610 Comment
  UC549743  Arctostaphylos regismontana J. E. Adams 1935-4-7 1044 San Mateo Skyline Blvd. Comment
  UC549744  Arctostaphylos regismontana Lewis S. Rose 1934-2-10 34026 San Mateo Skyline Blvd 4 mi s Kings Mountain (region of type) Comment
  UC762307  Arctostaphylos regismontana R. F. Hoover 1941-2-12 4768 San Mateo Kings Mountain Comment
  UC876529  Arctostaphylos regismontana Lewis S. Rose 1934-2-10 34026 San Mateo Skyline Blvd 4 mi s Kings Mountain (region of type) Comment
  RSA29505  Arctostaphylos regismontana E. K. Balls, Percy C. Everett 1953-10-16 18678 San Mateo 27.3 mi SE of San Francisco- San Mateo Co. Line on Hwy 5. 670 Comment
  UCD166159  Arctostaphylos sensitiva Jack Major; M. Forde and S. Bamberg 1962-4-3 741 b San Mateo Near Ano Nuevo Point. (Exact location unknown. Coordinates estimated by label maker.) Comment
Read comments
Oct 15 2021
  CAS-BOT-BC47321  Arctostaphylos tomentosa Walter Knight; Irja Knight 1964-9-14 843 San Mateo Peak Mountain, ca. 1 mi. w. of summit. Comment
  JEPS90462  Arctostaphylos tomentosa subsp. crinita Dean W. Taylor 1994-7-5 14744 San Mateo ca. 2 mi se Pescadero (far western end of ridge, on private road that leaves Cloverdale Rd. 0.3 mi s of Pescadero High School); Santa Cruz Mountains, Butano Ridge 228 Comment
  UCD51722  Arctostaphylos tomentosa subsp. crinita Roman Gankin 1966-5-17 739 San Mateo ca. 0.4 mile northeast of Peak Mountain of Montara Mountain range, San Mateo County, California. 487 Comment
  POM131770  Arctostaphylos tomentosa subsp. crustacea C. F. Baker 1902-5-10 817 San Mateo Kings Mountain. Comment
  RSA636844  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24651 San Mateo NW side of Montara Mtn. 150 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
  UCD51859  Arctostaphylos tomentosa subsp. crustacea Roman Gankin 1959-2-22 322 San Mateo 2.8 miles from junction state hwy 5 on King's Mt. Road, San Mateo County, California. Comment
  POM285159  Arctostaphylos tomentosa subsp. tomentosiformis Lyman Benson 1928-12-15 834 San Mateo La Honda 457 Comment
  SEINET11989206  Arctostaphylos uva-ursi E. McClintock, Knight, W.; Knight, I. 1982-1 4637 San Mateo NE of parking lot, San Bruno Mountain 335 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
  CDA24519  Argemone mexicana John Beall 2007-8-8 PDR# 1461634 San Mateo San Mateo; Golden Nursery, 1122 2nd Ave. Comment
  CAS-BOT-BC47695  Armeria maritima subsp. californica Otto M. Sokol 1953-5-9 81 San Mateo Pebble Beach Comment
  CAS-BOT-BC47703  Armeria maritima subsp. californica Lous 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-BC47705  Armeria maritima subsp. californica Ray H. Yanis 1951-5-12 99 San Mateo Pescadero 30 Comment
  CHSC39823  Armeria maritima subsp. californica Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  UCD98491  Armeria maritima subsp. californica Kathyrn L. Koch 1965-5-1 48 San Mateo Arroyo de los Frijoles Beach State Park, just south of State Highway 1 junction. Comment
  UCSB11750  Armeria maritima subsp. californica Olson, Jim 1962-4-13 San Mateo 1 mile south of Halfmoon Bay on U.S. Highway 101 15 Comment
  CAS-BOT-BC47693  Armeria maritima subsp. californica Elizabeth McClintock; Paul Reedberg 1988-4-26 s.n. San Mateo at southern tip of ridge dividing Sage and Poison Oak Ravines 137 Comment
  RSA116672  Arnica discoidea W. R. Dudley 1894-05 s.n. San Mateo San Mateo County: Woodside to Crystal Springs Reservoir Comment
  JROH517  Artemisia californica John H. Thomas 1978-9-24 19335 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM288963  Artemisia californica Lyman Benson 1928-11-25 785 San Mateo Stanford Univ-- Lake Searsville. Santa Cruz Mts. 152 Comment
  RSA51355  Artemisia californica L. S. Rose 1949-9-11 49179 San Mateo Montara Point. Comment
  RSA94535  Artemisia californica F. W. Peirson 1925-9-13 6429 San Mateo Rockaway beach. Comment
  POM289331  Artemisia douglasiana Lyman Benson 1937-7-8 8448 San Mateo Lake Searsville, Stanford, Mt. Range: Santa Cruz; Watershed: San Francisco Bay 122 Comment
  UC892419  Artemisia douglasiana Lewis S. Rose 1938-8-18 38232 San Mateo San Mateo 30 Comment
  UCSC007719  Artemisia douglasiana Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC93879  Artemisia dracunculus W. R. Dudley 1897-11-12 s.n. San Mateo San Francisquito Creek below Los Trancas Creek Comment
  SEINET3145785  Artemisia heterophylla L. S. Rose 1938-8-18 38232 San Mateo San Mateo 30 Comment
  CAS-BOT-BC93641  Artemisia pycnocephala John H. Thomas 1961-5-13 9336 San Mateo Coastal sand dunes at Franklin Point Comment
  POM204313  Artemisia pycnocephala I. L. Wiggins 1929-7-4 3800 San Mateo Pescadero Beach Comment
  UC1136000  Asarum caudatum H. S. Yates 1935-5-8 5214 San Mateo Pescadero Creek; Santa Cruz (San Mateo) quadrangle 30 Comment
  JROH432  Asclepias fascicularis John H. Thomas 1974-6-27 17444 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176418  Asclepias fascicularis John H. Thomas 1964-7-9 10444 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  SDSU6358  Aster subspicatus D. F. Howe 1967-8-6 4369 San Mateo By Half Moon Bay. Comment
  SEINET946308  Asteraceae C. B. Wolf 1934-1 6240 San Mateo Coastal bluff, 200 yds. South of Pigeon Pt. Lighthouse 15 Comment
  JROH1986  Astragalus gambelianus Duncan M. Porter 1960-5-5 676 B San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of N-facing slope above Webb Ranch. Quadrat H-5 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
  JROH1997  Astragalus gambelianus John Hunter Thomas 1992-4-29 25170 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC186755  Astragalus gambelianus Lois E. James 1947-4-11 1758 San Mateo Hills back of Redwood City Comment
  CAS-BOT-BC186768  Astragalus gambelianus W. R. Dudley 1894-4-21 s.n. San Mateo Below Crystal Springs Dam Comment
  UC903409  Astragalus gambelianus Lois E. James 1947-4-11 1758 San Mateo hills back Redwood City; hills back of Redwood City Comment
  CAS-BOT-BC389705  Astragalus nuttallii L. Sigal 1969-8-11 s.n. San Mateo Pillar Point Comment
  JEPS88673  Astragalus nuttallii Dean W. Taylor 1990-8-7 11418 San Mateo along Highway 1, 1.6 mi s Pomponoe State Beach (Santa Cruz Mountains); , s of Pomponoe State Beach 60 Comment
  CAS-BOT-BC177971  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
  SEINET5326017  Astragalus nuttallii var. virgatus A. A. Heller 1906-6-8 8385 San Mateo Near Ocean View, San Francisco Comment
  JEPS54799  Astragalus pycnostachyus William S. Cooper 1925-5-28 17 San Mateo Tunitas Comment
  CAS-BOT-BC193097  Astragalus pycnostachyus var. pycnostachyus J. W. Congdon 1897-8-11 s.n. San Mateo San Gregorio Comment
  SJSU15402  Astragalus pycnostachyus var. pycnostachyus Toni Corelli 2011-8-31 711 b San Mateo Pescadero State Beach and Marsh Natural Preserve, Butano Trail, between Butano Creek and Pescadero Creek Road 4 Comment
  POM164684  Atriplex californica C. F. Baker 1902-10-1 1743 San Mateo Pillar Point. Comment
  UC580053  Atriplex hortensis Ira L. Wiggins 1934-8-11 6969 San Mateo Redwood City Redwood City (salt flats beside tannery) Comment
  RSA26768  Atriplex subspicata I. L. Wiggins 1929-8-24 3873 San Mateo Moss Beach. Comment
  CAS-BOT-BC146123  Avena barbata Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Above the quarry. Comment
  JROH4842  Avena barbata W. Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9 Comment
  CAS-BOT-BC146000  Avena fatua Ira L. Wiggins 1975-4-17 22144 San Mateo Northeast side of S.P. right of way, between Willow Road and San Francisquito Creek, Menlo Park. Comment
  JROH4843  Avena fatua John H. Thomas 1973-4-14 16559 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4844  Avena fatua John Hunter Thomas 1984-4-24 23304 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2  Azolla John Hunter Thomas 1980-11-12 20167 San Mateo Jasper Ridge Biological Preserve, Stanford University; delta 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-BC98699  Baccharis douglasii W. R. Dudley 1894-9-22 s.n. San Mateo Searsville - Santa Cruz Mountain Peninsula Comment
  JROH532  Baccharis glutinosa John H. Thomas 1964-10-2 10513 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam along stream Comment
  JROH544  Baccharis glutinosa John Hunter Thomas 1988-10-17 24593 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  CAS-BOT-BC99530  Baccharis pilularis P. C. Everett 1934-11-7 6246 San Mateo Pescadero 198 Comment
  OBI5968  Baccharis pilularis Carl B. Wolf 1930-11-5 1807 San Mateo 4 mi S of Pescadero. Humid Transition zone Comment
  POM350434  Baccharis pilularis L. S. Rose 1936-8-16 36712 San Mateo Granada 15 Comment
  RSA40137  Baccharis pilularis L. S. Rose 1948-11-14 48235 San Mateo Hills west of Belmont 183 Comment
  RSA51370  Baccharis pilularis L. S. Rose 1949-9-20 49182 San Mateo Sharp Park Comment
  UC1119670  Baccharis pilularis G. E. Sindel 1935-10-18 381 San Mateo 1 3/8 mi n of Langley Hill; Santa Cruz Quad. 518 Comment
  RSA195512  Barbarea orthoceras John H. Thomas 1966-4-22 11567 San Mateo Jasper Ridge Biological Experimental Area. About 5 miles SW of Palo Alto. Comment
  JROH3925  Bellardia trixago John Hunter Thomas 1986-6-7 24083 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1733840  Bellardia trixago Kay H. Beach 1941-4-26 1077 San Mateo S of San Francisco city limits Skyline Drive 76 Comment
  UCR121576  Bellardia trixago George K. Helmkamp, E. A. Helmkamp 1999-6-28 5008 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  CDA34347  Beta vulgaris E. Finley 1990-10-16 s.n. San Mateo Shoreline Blvd., Mountain View. 0 Comment
  CAS-BOT-BC100318  Blennosperma nanum var. robustum A. D. E. Elmer 1903-4-1 4521 San Mateo San Bruno Hills Comment
  RSA465627  Boisduvalia densiflora var. densiflora L. S. Rose 1942-8-11 42228 San Mateo Hills east of Sharps Park 91 Comment
  RSA465634  Boisduvalia stricta E. S. Spalding 1923-8-3 s.n. San Mateo Pulgas Tunnel, east side. Comment
  CAS-BOT-BC28211  Bolboschoenus fluviatilis Ida R. Hayward 1927-7-4 s.n. San Mateo By road crossing Crystal Springs Lake. Comment
  CAS-BOT-BC31087  Bolboschoenus maritimus Alice Eastwood 1915-6-13 4714 San Mateo Granada Comment
  CAS-BOT-BC389695  Boykinia occidentalis Mary K. Wicksten 1975-6-14 118 San Mateo Memorial Park Comment
  CAS-BOT-BC420227  Boykinia occidentalis W. R. Dudley 1895-6-6 s.n. San Mateo Banks of Pescadero Creek above Iverson's Comment
  CAS-BOT-BC145406  Brachypodium distachyon Peter H. Raven 1957-6-30 11015 San Mateo 1.8 mile east of Pescadero on road to La Honda. Comment
  JROH4855  Brachypodium distachyon John Hunter Thomas 1988-6-2 24509 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA20475  Brachypodium sylvaticum J. Beall 2003-12-12 PDR 1387963 San Mateo San Francisco Bay Area; Along Hwy 84 at Grandview Dr. 0 Comment
  CDA36478  Brachypodium sylvaticum Ellen Gartside 2011-9-1 s.n. San Mateo Woodside; base of slope just above Grandview Drive. Comment
  JROH4866  Brachypodium sylvaticum John Rawlings 2007-10-1 1025 San Mateo Jasper Ridge Biological Preserve, Stanford University. In middle of road inside Preserve Fence along Sand Hill Road south of caretaker's house. 107 Comment
  SEINET14395443  Brachypodium sylvaticum J. Beall 2003-12-4 San Mateo Santa Cruz Mountains, Woodside on Hwy 84 at Grandview Dr., about 1 mile from Skyline Road summit. 427 Comment
  UCD56896  Brachypodium sylvaticum K. Melo 2003-12-1 PDR 138751 9 San Mateo San Francisco Peninsula. Hwy. 84 at Grandview Terrace and Schilling Lake. Martin Creek drainage. Comment
  UCD114736  Brassica nigra Rimo Bacigalupi; J. H. Thomas and L. R. Heckard 1961-5-23 7714 San Mateo Along Alpine Road near site of abandoned Alpine School. 487 Comment
  CAS-BOT-BC36669  Brassica oleracea L. R. Abrams; Ira L. Wiggins 1939-6-3 439 San Mateo 2 miles north of Pigeon Point Lighthouse. Comment
  CAS-BOT-BC36668  Brassica oleracea John H. Thomas 1966-5-28 11644 San Mateo In central part of Menlo Park near Post Office. Comment
  JROH1462  Brassica rapa John H. Thomas 1972-4-1 16046 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH1463  Brassica rapa John H. Thomas 1975-4-5 17707 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1464  Brassica rapa John H. Thomas 1975-6-5 17931 San Mateo Jasper Ridge Biological Preserve, Stanford University; just outside of gate Comment
  CAS-BOT-BC36791  Brassica rapa Reed Clark Rollins 1941-2-23 2940 San Mateo 10 miles south of San Francisco. Comment
  CAS-BOT-BC36796  Brassica rapa Javier Penalosa 1963-2-23 2662 San Mateo San Bruno Mountains. Ravine south of Crocker Avenue. 213 Comment
  CAS-BOT-BC145495  Briza maxima John R. Barth 1963-5-23 42 San Mateo Pebble Beach. Comment
  JROH4867  Briza maxima John Hunter Thomas 1982-9-12 21156 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA119338  Briza maxima S. S. Tillett, I. Sternback 1956-6-25 551 San Mateo Along roadside, Skyline Drive. 488 Comment
  CAS-BOT-BC145324  Briza minor W. R. Dudley 1900-3-16 s.n. San Mateo Santa Cruz Mountain Peninsula. North of Triples Store. Comment
  CAS-BOT-BC145332  Briza minor John H. Thomas 1950-4-27 1692 A San Mateo King's Mountain Road. Comment
  CAS-BOT-BC145333  Briza minor John H. Thomas 1964-4-30 10374 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  POM264294  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo near San Carlo in open field. Comment
  SD227692  Briza minor G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3747 San Mateo Portola Valley: Golden Hills Rd along Los Trancos Creek. 106 Comment
  SEINET4183120 Image available Briza minor A. A. Beetle 1941-4-20 1738 San Mateo Near San Carlos. Comment
  UC306623  Briza minor A. D. E. Elmer May, 1903 4912 San Mateo Crystal Springs Lake Comment
  SEINET11675202  Briza minor Unknown 1932-1 9112 San Mateo above Spring Valley Lakes Comment
  SEINET10932599  Brodiaea elegans Walter 1919-6-9 Walter s.n. 1919 San Mateo Woodside Comment
  JROH4586  Brodiaea terrestris subsp. terrestris Elmer I. Applegate 1895-5-11 700 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1442900  Brodiaea terrestris subsp. terrestris Theodore F. Niehaus 1965-3-23 364 San Mateo e of Crystal Springs (100 yards e of San Mateo Juvenile Probation Center) Comment
  SEINET12057834  Brodiaea terrestris subsp. terrestris Copeland 1903-6-5 3297 San Mateo Montara Pt Comment
  RSA185011  Bromus carinatus L. S. Rose 1963-4-27 63003 San Mateo Skyline Blvd, open hills west of San Mateo. 91 Comment
  SJSU7534  Bromus carinatus Lewis S. Rose 1963-4-27 63003 San Mateo Skyline Blvd W of San Mateo 91 Comment
Read comments
Oct 16 2013
  CAS-BOT-BC148976  Bromus carinatus var. carinatus Lewis S. Rose 1956-5-7 56069 San Mateo Skyline Boulevard west of San Mateo. 182 Comment
  CAS-BOT-BC148981  Bromus carinatus var. carinatus Peter H. Raven 1950-6-3 2253 San Mateo Woods around San Andreas Lake. 121 Comment
  CAS-BOT-BC149024  Bromus carinatus var. carinatus Dean Wm. Taylor 1988-3-30 9492 San Mateo Santa Cruz Mountains. San Bruno Mountains, northern slope of southeast ridge of the mountain, near the ridgecrest. 237 Comment
  JROH4896  Bromus carinatus var. carinatus John H. Thomas 1984-4-2 23273 3 D San Mateo Jasper Ridge Biological Preserve, Stanford University. Low-flow crossing. Comment
  JROH4897  Bromus carinatus var. carinatus John Hunter Thomas 1988-5-16 24466 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  JROH4901  Bromus carinatus var. carinatus John Rawlings 2013-4-23 1143 San Mateo Jasper Ridge Biological Preserve, Stanford University. Shaded, northwest-facing slope of small drainage about 100 meters upstream from Trail 11 at the upper footbridge. 133 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-BC148765  Bromus carinatus var. marginatus Walter Knight; Irja Knight 1964-4-13 s.n. San Mateo San Bruno Mountain. San Bruno Mountain Power Line Ridge. Comment
  CAS-BOT-BC183616  Bromus carinatus var. marginatus Peter Rubtzoff 1976-5-22 8548 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon area. Comment
  CAS-BOT-BC148770  Bromus carinatus var. marginatus W. R. Dudley 1900-3-18 s.n. San Mateo Santa Cruz Mountain Peninsula. Hils east of Salida Valley. Comment
  CAS-BOT-BC156176  Bromus catharticus John H. Thomas 1969-4-24 14902 San Mateo Near Canada College, Redwood City, near Farm Hill Drive. Comment
  UCD58360  Bromus catharticus John C. Throckmorton 1976-6-29 s.n. San Mateo La Honda. Comment
  CAS-BOT-BC155132  Bromus hordeaceus H. A. Dutton 1900-4-17 s.n. San Mateo Santa Cruz Peninsula. Just east of Jasper on south side of Woodside. Comment
  CAS-BOT-BC155133  Bromus hordeaceus W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of Sneath's Ranch Hill near Millbrae. Comment
  JROH4920  Bromus hordeaceus John H. Thomas 1967-5-12 12889 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4929  Bromus hordeaceus John Rawlings 2010-4-28 1091 San Mateo Jasper Ridge Biological Preserve, Stanford University; on slope south of the visitor parking lot 119 Comment
  CAS-BOT-BC162407  Bromus laevipes A. A. Heller 1907-5-23 8566 San Mateo Back of San Mateo on the Half Moon Bay road. Comment
  JROH4938  Bromus laevipes W. Lennihan 1990-4-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Eastern draw, 40 yards down. Comment
  JROH4941  Bromus madritensis subsp. madritensis John H. Thomas 1966-4-24 11584 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM204676  Bromus marginatus H. F. Copeland 1903-6-10 1630 San Mateo Montara Point. Comment
  SEINET3921866  Bromus marginatus Robert A. Norris 1984-3-21 4656 San Mateo Blue Blossom Hills, San Mateo Mts., CA.; 0 366 Comment
  CAS-BOT-BC162227  Bromus maritimus John H. Thomas 1963-7-19 10196 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles northwest of Santa Cruz. Comment
  CDA34495  Bromus pseudolaevipes D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .174B San Mateo Swanton Rd just S of Ano Nuevo above Weddell Creek. Comment
Read comments
Nov 26 2021
  UCD59622  Bromus rubens P. Rodriguez-Rojo 1997-4-12 s.n. San Mateo Edgewood County Park. 200 Comment
  CAS-BOT-BC185394  Bromus vulgaris W. R. Dudley 1896-7-29 s.n. San Mateo Santa Cruz Mountain Peninsula. La Honda. Comment
  RSA0089575  Brugmansia sanguinea Dean Wm. Taylor, Julie Anne 2003-1-1 18463 b San Mateo Pacifica; San Pedro Valley County Park, growing in riparian setting ca. 0.3 miles upcanyon (east) of the parking lot. 76 Comment
  UC1195194  Buddleja davidii John H. Thomas 1960-6-25 8794 San Mateo along or near a small creek running into Redwood Slough between El Camino Real and R.R. tracks Redwood City (near Maple St.) 7 Comment
  CAS-BOT-BC36961  Cakile maritima var. maritima Robert Robertson 1954-5-1 126 San Mateo By roadside at back of beach near San Gregorio Creek. 6 Comment
  CAS-BOT-BC185144  Calamagrostis nutkaensis H. L. Mason 1921-5-29 s.n. San Mateo Near Arroyo de Las Frijoles. Comment
  CAS-BOT-BC185151  Calamagrostis nutkaensis A. D. E. Elmer 1903-6-1 4693 San Mateo San Pedro. Comment
  CAS-BOT-BC185032  Calamagrostis rubescens W. R. Dudley 1906-6-12 s.n. San Mateo Santa Cruz Mountain Penisula. By road to Kings Mountain above the Squealer Gulch bridge. Comment
  CAS-BOT-BC438531  Calandrinia ciliata H. A. Dutton 1900-2-11 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  JROH3327  Calandrinia ciliata John H. Thomas 1977-4-8 18516 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389754  Calandrinia ciliata J. Nieri 1953-2-21 s.n. San Mateo Hetch Hetchy Reservoir, Redwood City Comment
  JROH1640  Callitriche marginata John H. Thomas 1973-4-20 16578 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA137260  Callitriche verna A. D. E. Elmer 1903-06 4279 San Mateo Lake San Andreas. Comment
  JROH4596  Calochortus albus John H. Thomas 1963-5-12 10085 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4597  Calochortus albus John H. Thomas 1967-6-1 12976 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4605  Calochortus albus John H. Thomas 1976-5-26 18152 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD655  Calochortus albus Ulysses S. Grant IV Jun 1925 San Mateo Near La Honda. Comment
  SD656  Calochortus albus lysses S. Grant IV Jun 1925 San Mateo Near La Honda. 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
  UCR11981  Calochortus albus Blanche Clear 1938-5-22 s.n. San Mateo San Francisco Bay Region, dirt road in Hidden Valley[Pulgas Creek Valley?] between Redwood City and Belmont 61 Comment
  RSA14949  Calochortus albus Lewis S. Rose 1935-6-11 35214 San Mateo 9 mi W of Stanford University. Comment
  UC648400  Calochortus albus Marion Ownbey and Ruth P. Ownbey 1938-7-7 1698 San Mateo 3 mi w Woodside; Santa Cruz Mts. Comment
  JROH4622  Calochortus argillosus John H. Thomas 1974-6-30 17458 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4623  Calochortus argillosus John H. Thomas 1974-6-30 17458 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4624  Calochortus argillosus John H. Thomas 1975-6-5 17940 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack Comment
  CAS-BOT-BC491981  Calochortus luteus W. R. Dudley 1894-5-14 342 San Mateo Near Storkfarm, Stanford University Comment
  CAS-BOT-BC491991  Calochortus luteus Marion Ownbey; Ruth P. Ownbey 1938-7-7 1699 San Mateo Santa cruz Mts., above Searsville Lake 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
  UC729636  Calochortus tolmiei Carl B. Wolf 1929-5-22 3722 San Mateo near La Honda grade; Santa Cruz Mts. 182 Comment
  CAS-BOT-BC493995  Calochortus tolmiei Le Roy Abrams 1902-5-20 s.n. San Mateo King's Mountain Comment
  CAS-BOT-BC494045  Calochortus venustus Cherie Wetzel 1969-6-20 860 San Mateo Serpentine near Canada College, Redwood City, just off of Farm Hill Blvd Comment
  JROH561  Calycadenia multiglandulosa John H. Thomas 1967-11-5 14128 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC894246  Calycadenia multiglandulosa Lewis S. Rose 1937-9-21 37658 San Mateo Emerald Lake, w of Redwood City 182 Comment
  RSA124773  Calycadenia multiglandulosa subsp. robusta John H. Thomas 1958-11-22 7506 San Mateo Jasper Ridge, about 5 miles SW of Palo Alto 152 Comment
  CAS-BOT-BC224654  Calystegia purpurata subsp. purpurata Josephine D. Randall 1907-7-24 105 San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  JROH1841  Calystegia purpurata subsp. purpurata John H. Thomas 1968-5-22 14457 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC436441  Calystegia subacaulis Lewis S. Rose 1956-5-28 56080 San Mateo Skyline Blvd west of San Mateo 182 Comment
  POM32530  Camissonia cheiranthifolia subsp. cheiranthifolia A. D. E. Elmer 1903-07 4942 San Mateo San Pedro. Comment
  POM181721  Camissonia ovata H. F. Copeland 1928-2-26 78 San Mateo Montara Comment
  JEPS43862  Camissoniopsis cheiranthifolia subsp. cheiranthifolia William S. Cooper 1924-11-19 37 San Mateo Ano Nuevo Pt. Comment
  SD38657  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Edith A. Purer 1934-8-14 5916 San Mateo Half Moon Bay. 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
  POM209849  Campanula prenanthoides D. D. Keck 1934-7-7 2929 San Mateo Kings Mountain, west of summit 610 Comment
  RSA18477  Campanula prenanthoides C. B. Wolf 1927-7-20 646 San Mateo La Honda Grade Comment
  SEINET10463189  Campanula prenanthoides Gray 1872-1 GRAY s.n. San Mateo SANTA CRUZ REDWOODS Comment
  SEINET10840319  Campanula prenanthoides Ira L. Wiggins 1929-7-4 Wiggins 3779 San Mateo Moist ravine 4 miles west of La Honda on hill road to Pescadero Beach Comment
  SEINET10939004  Campanula prenanthoides Wolf 1927-8-13 WOLF 714 San Mateo LA HONDA GRADE, SANTA CRUZ MTNS Comment
  CAS-BOT-BC37681  Cardamine californica George Oberlander 1950-2-1 453 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon. Comment
  CAS-BOT-BC37686  Cardamine californica Everett Winder Rust 1907-4-27 125 San Mateo Kings Mountain. Comment
  CAS-BOT-BC37690  Cardamine californica Oliver W. Norvell 1931-2-28 1356 San Mateo Kings Mountain Grade. Comment
  HSC23887  Cardamine californica Mary Katherine Wicksten 1971-7-7 158 San Mateo Huddart Park, along road to family campground. Comment
  SD38004  Cardamine californica Marie Cummings 1933-4-27 52 San Mateo King's Mountain Comment
  JROH3903  Cardamine californica D. D. Davis 1903-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  CDA3669  Cardamine hirsuta Wm. Davis 1958-3-26 187 -58 San Mateo El Camino Real, San Mateo. 0 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
  CAS-BOT-BC37989  Cardamine oligosperma Alice Eastwood 1933-4-30 s.n. San Mateo Lake Pilarcitos. Comment
  JEPS23926  Cardamine oligosperma LeRoy Abrams 1902-4-5 2308 San Mateo Searsville Comment
  JROH1492  Cardamine oligosperma John H. Thomas 1968-3-17 14182 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1493  Cardamine oligosperma John H. Thomas 1968-5-17 14182 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1494  Cardamine oligosperma John H. Thomas 1979-4-8 19447 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1501  Cardamine oligosperma John Hunter Thomas 1987-4-7 24173 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Indian acorn grinding rock Comment
  CAS-BOT-BC167120  Cardamine oligosperma Peter Rubtzoff 1977-4-14 8946 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, northwest of Fog Forest. Comment
  CAS-BOT-BC37988  Cardamine oligosperma George Oberlander 1949-4-30 123 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon. Comment
  CAS-BOT-BC384844  Cardionema ramosissimum 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
  UCD85499  Carduus pycnocephalus Alison Blake 2003-4-14 2 San Mateo Filoli botanical gardens. Section F-8, ESE of volunteer parking lot about 30 ft beyond P.L. entrance. Comment
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Jan 18 2012
  CAS-BOT-BC18186  Carex W. R. Dudley 1899-4-13 s.n. San Mateo San Francisquito Creek below Cedro Cottage Bridge, Stanford University. Comment
  JEPS48963  Carex amplifolia James G. Daly 1934-1 424 San Mateo upper Corte de Madera Canyon Comment
  JROH5579  Carex barbarae John Rawlings 2013-7-2 1194 San Mateo Jasper Ridge Biological Preserve, Stanford University. In rocky bed of San Francisquito Creek, north side, opposite 2013 slide on Trail 1. 80 Comment
  CAS-BOT-BC19544  Carex bolanderi C. F. Leitholt 1894-8-13 s.n. San Mateo Sant Cruz Mountain Peninsula. Devil's Canyon. Comment
  CAS-BOT-BC18922  Carex densa Alice Eastwood; John Thomas Howell 1937-5-7 4328 San Mateo Visatacion Valley. Comment
  CAS-BOT-BC18940  Carex densa W. R. Dudley 1910-5-26 s.n. San Mateo Santa Cruz Mountain Peninsula. Coal Mine Ridge, near Black Mountain. Comment
  JROH4328  Carex densa John H. Thomas 1967-6-1 12946 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA91589  Carex densa L. S. Rose 1937-5-16 37279 San Mateo South San Francisco. 15 Comment
  CAS-BOT-BC210005  Carex harfordii Peter Rubtzoff 1975-5-21 7968 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC119345  Carex obnupta W. R. Dudley 1896-4-17 s.n. San Mateo Pebble Peach Pasture, Pescadearo, Santa Cruz Mountain. Comment
  CHSC109976  Carex pendula John Rawlings 2011-7-3 San Mateo 200 m E of junction of Purisima Creek Trail and path to Judson Redwood Grove, about 0.5 air miles E of Higgins Canyon Road, Purisima Creek Redwoods Open Space Preserve, W slope of Santa Cruz Mountains, San Francisco Bay (SnFrB). 165 Comment
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Jan 26 2018
  CAS-BOT-BC117647  Carex serratodens Harry A. Dutton 1900-4-3 s.n. San Mateo Woodside. Comment
  JROH4358  Carex serratodens John H. Thomas 1968-5-3 14443 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4360  Carex serratodens John Hunter Thomas 1986-6-9 24093 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC117649  Carex serratodens W. R. Dudley 1896-4-4 s.n. San Mateo Near Summit Springs, King's Mt. Comment
  RSA783466  Carex subbracteata Peter Rubtzoff, Roman Gankin 1975-5-21 7975 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction Comment
  SBBG47544  Carex subbracteata L. S. Rose 1939-4-14 39063 San Mateo South San Francisco 15 Comment
  SEINET10750023  Carex subbracteata John Thomas Howell 1938-5-1 Howell 13783 San Mateo Near South San Francisco. Comment
  CAS-BOT-BC116816  Carex subbracteata var. subbracteata John Thomas Howell 1938-5-1 13783 San Mateo Near South San Francisco Comment
  CAS-BOT-BC116831  Carex subbracteata var. subbracteata Adolph Daniel Edward Elmer 1903-6-1 4429 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC115507  Carex tumulicola George Thomas Oberlander 1950-5-28 967 San Mateo Marsh, Pilarcitos Lake. Comment
  CAS-BOT-BC115511  Carex tumulicola W. R. Dudley 1910-5-26 s.n. San Mateo Coal Mine Ridge near Black Mountain Comment
  RSA119340  Carex tumulicola S. S. Tillett, I. Sternback 1956-6-25 543 San Mateo On Middleton property S of road to Portola State Park, just before entrance; in secondary redwood forest. 396 Comment
  UCD140941  Carex tumulicola S. S. Tillett; I. Sternback 1956-6-25 543 San Mateo On Middleton property s. of road to Portola State Park, just before entrance. 396 Comment
  CAS-BOT-BC115509  Carex tumulicola Wilhelm Nikolaus Suksdorf 1913-6-20 377 San Mateo Damp or springy places, Crystal Springs Lake. Comment
  CAS-BOT-BC230111  Carpobrotus chilensis Daniel Cohen 1953-5-9 96 San Mateo Sea cliffs facing ocean at Pebble Beach Comment
  SD40038  Carpobrotus chilensis Edith A. Purer 1933-7-27 5393 San Mateo Pigeon Point, two miles south Comment
  CAS-BOT-BC249191  Castilleja affinis David D. Keck 1940-5-15 5036 San Mateo Upper Crystal Springs Lake, east side 100 Comment
  POM15449  Castilleja affinis C. F. Baker 1902-4-6 464 San Mateo Crystal Springs Lake. Comment
  SEINET5542520  Castilleja affinis H. S. Gentry 1931-1 99 San Mateo 1 mile SE of Holy Cross Cemetery. Comment
  JEPS26848  Castilleja affinis subsp. affinis Rimo Bacigalupi with L. Heckard and J. H. Thomas 1961-5-23 7711 San Mateo 0.25 mi below and s Portola State Park road junction with the Alpine Road (and just n of the Horseshoe Ranch, down road to Portola State Park) 457 Comment
  JEPS34320  Castilleja affinis subsp. affinis L. R. Heckard, and Rimo Bacigalupi 1963-7-2 1326 San Mateo Thornton Beach State Park 30 Comment
  JEPS88798  Castilleja affinis subsp. affinis T. I. and F. M. Chuang 1991-6-29 7851 San Mateo ca .33 mi s Pescadero State Beach Comment
  JEPS88802  Castilleja affinis subsp. affinis T. I. and F. M. Chuang 1991-7-3 7861 San Mateo 1 mi s Linda Mar (on Highway 1) Comment
  JROH3936  Castilleja affinis subsp. affinis Roger von Preissig 1954-4-23 26 b San Mateo Jasper Ridge Biological Preserve, Stanford University 152 Comment
  JROH3942  Castilleja affinis subsp. affinis John H. Thomas 1974-4-25 17213 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3943  Castilleja affinis subsp. affinis John H. Thomas 1976-5-26 18156 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3944  Castilleja affinis subsp. affinis John H. Thomas 1976-5-26 18156 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU910  Castilleja ambigua J. W. Tilden 1946-7-15 1004 San Mateo Pescadero 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
  POM15341A  Castilleja ambigua subsp. ambigua Copeland 1903-6-3 3298 San Mateo Montara Point. Comment
  SBBG54525  Castilleja ambigua subsp. ambigua F. W. Pennell, D. D. Keck 1940-3-15 25427 San Mateo US Hwy 101, Burlingame 1 Comment
  UC886508  Castilleja ambigua subsp. ambigua Alice Eastwood 1912-6-2 208 San Mateo Granada Comment
  JROH3955  Castilleja attenuata John H. Thomas 1967-5-10 12857 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3966  Castilleja attenuata John Hunter Thomas 1982-4-23 20838 San Mateo Jasper Ridge Biological Preserve, Stanford University; picnic area Comment
  JROH3986  Castilleja densiflora subsp. densiflora John Hunter Thomas 1986-5-8 24026 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1012312  Castilleja densiflora subsp. densiflora F. W. Pennell and D. D. Keck 1940-5-15 25425 San Mateo 4 mi w Burlingame (Route 101) 152 Comment
  SEINET13772767  Castilleja exserta A. A. Heller 1906-1 8381 San Mateo Near Ocean View, San Francisco. Comment
  UC1063459  Castilleja exserta H. S. Yates 1935-5-8 5204 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. 579 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
  CAS-BOT-BC32675  Castilleja franciscana Francis Whittier Pennell; David Daniels Keck 1940-5-15 25420 San Mateo East of upper Crystal Springs Lake, SW of San Mateo 91 Comment
  CAS-BOT-BC243825  Castilleja latifolia C. F. Baker 1906-5-1 799 San Mateo King's Mt. Comment
  CAS-BOT-BC243838  Castilleja latifolia Alice Eastwood; John Thomas Howell 1938-4-24 5252 San Mateo Tunitas Comment
  CAS-BOT-BC243840  Castilleja latifolia John Thomas Howell 1933-4-9 10966 San Mateo Hills south of Pescadero Comment
  SD4825  Castilleja latifolia Ulysses S. Grant IV June 1925 San Mateo near La Honda Comment
  JROH3996  Castilleja rubicundula subsp. lithospermoides John H. Thomas 1969-5-28 15092 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3997  Castilleja rubicundula subsp. lithospermoides D. E. Breedlove 1971-5-31 19360 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH4009  Castilleja rubicundula subsp. lithospermoides John Hunter Thomas 1989-5-11 24729 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG33415  Castilleja rubicundula subsp. lithospermoides A. D. E. Elmer -Jun-1903 4420 San Mateo Crystal Springs Lake Comment
  UC306597  Castilleja rubicundula subsp. lithospermoides A. D. E. Elmer Jun 1903 4420 San Mateo Crystal Springs Lake Comment
  JEPS3599  Castilleja subinclusa subsp. franciscana J. H. Thomas 1949-6-4 597 San Mateo 4 mi w La Honda (on road to Pescadero) Comment
  JEPS103891  Castilleja subinclusa subsp. franciscana T. I. Chuang and F. M. Chuang 1991-7-3 7859 San Mateo 0.8 mile SW from junction of Interstate 280 and rt. 92 on rt. 92 Comment
  SBBG51587  Castilleja subinclusa subsp. franciscana J. Doty 1969-3-26 595 San Mateo E of jct of St Hwy 92, near summit of coast range, San Francisco Peninsula Comment
  JEPS15590  Castilleja wightii Rimo Bacigalupi with J. R. Sweeney, Cliff Fenneman and George Bacigalupi Jr. 1954-8-3 4737 San Mateo slopes directly above Edgemar (on the old coast highway connection with Skyline Boulevard) 76 Comment
  JEPS34323  Castilleja wightii L. R. Heckard, and Rimo Bacigalupi 1963-7-2 1328 San Mateo 500 ft se San Pedro Valley (town) (slopes above South Fork of San Pedro Creek, near home of John Gay) Comment
  SEINET3840786  Castilleja wightii Unknown 2005-6-21 5 .371 San Mateo Northeast corner of Pilarcitos Lake, SF Water District land 250 Comment
  POM20827  Castilleja wightii Katherine Brandegee 1917-7-15 s.n. San Mateo Moss Beach between the station and the bluffs. Comment
  RSA89758  Castilleja wightii P. A. Munz 1954-8-4 19914 San Mateo 5 miles s. of Rockaway Beach. Comment
  CAS-BOT-BC40394  Caulanthus lasiophyllus Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo San Bruno Mountains. Crocker Hills. Comment
  CAS-BOT-BC40397  Caulanthus lasiophyllus Peter H. Raven 1950-4-16 1802 San Mateo San Bruno Mountain. Summit Ridge. 243 Comment
  CAS-BOT-BC47932  Ceanothus Fred Hemphill 1973-4-15 669 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 182 Comment
  CAS-BOT-BC48306  Ceanothus cuneatus A. D. E. Elmer 1903-3-1 4578 San Mateo Portola Comment
  CAS-BOT-BC48393  Ceanothus cuneatus var. cuneatus A. D. E. Elmer 1903-3-1 4578 San Mateo Portola Comment
  JROH3520  Ceanothus cuneatus var. cuneatus John H. Thomas 1955-5-6 5016 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3529  Ceanothus oliganthus var. sorediatus John H. Thomas 1967-4-20 12710 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM282997  Ceanothus oliganthus var. sorediatus Lyman Benson 1937-7-25 8467 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  CAS-BOT-BC51851  Ceanothus papillosus W. R. Dudley 1902-5-17 s.n. San Mateo Kings Mountain Road Comment
  POM223329  Ceanothus papillosus L. S. Rose 1935-5-3 35144 San Mateo Skyline Blvd, W of Saratoga. 732 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
  CAS-BOT-BC52305  Ceanothus thyrsiflorus Marian L. Campbell 1915-6-18 s.n. San Mateo San Bruno hills Comment
  RSA153472  Ceanothus thyrsiflorus John H. Thomas 1961-5-7 9295 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  UC1219870  Ceanothus thyrsiflorus John H. Thomas 1961-5-7 9295 San Mateo San Bruno Mountain in northern part of county. 304 Comment
  SEINET12209977  Ceanothus thyrsiflorus Unknown 1932-1 8972 San Mateo Comment
  SBBG32451  Ceanothus thyrsiflorus var. thyrsiflorus L. S. Rose 1963-4-27 63004 San Mateo La Honda 121 Comment
  SBBG115374  Ceanothus thyrsiflorus var. thyrsiflorus R. Gankin 1950-7-9 21 San Mateo 1 mi W of Pescadero toward St Hwy 1 15 Comment
  JEPS21637  Centaurea calcitrapa John H. Thomas 1955-4-6 4831 San Mateo e facing slope of San Bruno Mountain, just n of South San Francisco San Bruno Mountain, South San Francisco 30 Comment
  POM55184  Centaurea calcitrapa A. D. E. Elmer 1903-07 4961 San Mateo Crystal Springs Lake Comment
  UC91552  Centaurea calcitrapa J. W. Congdon 1901-7-27 San Mateo San Mateo Comment
  CAS-BOT-BC274585  Centaurea calcitrapa G. H. Mallory 1919-7-21 s.n. San Mateo Santa Cruz Mountain Peninsula. Near San Mateo Comment
  CAS-BOT-BC274595  Centaurea calcitrapa Phillip C. Wheeler 1965-5-17 s.n. San Mateo San Bruno Mountain. Crocker Hills near Cow Palace Comment
  CDA35517  Centaurea calcitrapa Ed Finley 1986-9-3 s.n. San Mateo Near Pilarcitos Lake. 0 Comment
  CAS-BOT-BC277124  Centaurea melitensis J. H. Thomas 1958-6-11 7224 San Mateo About 4.3 miles due east of Belmont near Crystal Springs Reservoir 91 Comment
  JROH599  Centaurea melitensis John H. Thomas 1963-6-23 10170 San Mateo Jasper Ridge Biological Preserve, Stanford University; Westridge end of ridge Comment
  POM351515  Centaurea melitensis Paul C. Silva 1948-1-31 2629 San Mateo Old La Honda Grade, 1 mi. S of Skyline Blvd. 457 Comment
  RSA17963  Centaurea solstitialis C. B. Wolf 1927-8-13 716 San Mateo Woodside Comment
  UC763213  Centaurium davyi R. F. Hoover 1941-5-20 5112 San Mateo near Martin Creek (grade above Portola on La Honda road) Comment
  SJSU15427  Centaurium tenuiflorum Toni Corelli 2011-8-25 716 b San Mateo Pescadero State Beach and Marsh Natural Preserve, Round Hill Trail at the end of Water Lane Road 12 Comment
  CAS-BOT-BC272818  Centromadia parryi subsp. parryi W. R. Dudley 1908-10-4 s.n. San Mateo Near Laguna Salada Comment
  SEINET3146197  Centromadia pungens L. S. Rose 1938-8-18 38231 San Mateo San Mateo 6 Comment
  SJSU5744  Centromadia pungens subsp. pungens L. S. Rose 1965-9-20 65106 San Mateo Burlingame, Trousdale Dr. & California Dr. 9 Comment
  UC894337  Centromadia pungens subsp. pungens Roxana Stinchfield 1915-9-19 250 San Mateo fields near Salt Marshes; Palo Alto Comment
  CAS-BOT-BC384957  Cerastium arvense David D. Keck 1932-3-27 1410 San Mateo Stanford University; near the quarry on Matadero Creek Comment
  CAS-BOT-BC388388  Cerastium glomeratum A. D. E. Elmer 1903-4-1 4473 San Mateo San Bruno Hills Comment
  SEINET11914804  Cercocarpus betuloides Unknown 1932-1 8945 San Mateo Los Francos Woods Comment
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Nov 1 2021
  CAS-BOT-BC135474  Cercocarpus betuloides var. betuloides A. D. E. Elmer 1903-5-1 4530 San Mateo Searsville Lake Comment
  JROH3616  Cercocarpus betuloides var. betuloides L. R. Abrams 1916-2-22 7242 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  JROH3617  Cercocarpus betuloides var. betuloides L. R. Abrams 1916-3-25 5573 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3621  Cercocarpus betuloides var. betuloides John H. Thomas 1961-6-14 9541 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM158132  Chenopodium ambrosioides var. ambrosioides L. R. Abrams 1902-9-21 2997 San Mateo Crystal Lake 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
  POM164765  Chenopodium murale C. F. Baker 1902-9-2 1549 San Mateo Crystal Springs Lake. Comment
  UCSB17648  Chlorogalum pomeridianum Schulte, John 1963-4-27 San Mateo Jasper Ridge, 3 miles SW of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  JROH4645  Chlorogalum pomeridianum var. pomeridianum D. E. Breedlove 1971-5-31 19390 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH4652  Chlorogalum pomeridianum var. pomeridianum John Hunter Thomas 1983-6-29 22706 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4653  Chlorogalum pomeridianum var. pomeridianum John Hunter Thomas 1983-7-20 22903 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC191595  Chorizanthe cuspidata var. cuspidata D. E. Breedlove 1963-5-24 4975 San Mateo coastal bluff at Thornton Beach State Park, Daly City Comment
  JROH3222  Chorizanthe diffusa Le Roy Abrams 1901-5-20 1653 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3223  Chorizanthe diffusa W. R. Dudley 1910-5-29 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA181223  Chrysanthemum leucanthemum John H. Thomas 1964-6-19 10424 San Mateo 0.9 miles S of Tunitas Creek near Coast Hwy, 61 Comment
  RSA54048  Chrysanthemum leucanthemum J. T. Howell 1949-7-4 25356 San Mateo Skyline Blvd., north of Millbrae Comment
  CAS-BOT-BC36405  Chrysolepis chrysophylla George Oberlander 1949-8-8 411 San Mateo Southern Cahill Ridge Comment
  RSA118979  Chrysolepis chrysophylla Oliver W. Norvell 1931-2-22 1320 San Mateo Kings Mt. Road. Comment
  RSA476618  Chrysolepis chrysophylla L. H. Jones 1909-3-13 s.n. San Mateo On King's Mountain Road, Stanford University. 762 Comment
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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-BC36403  Chrysolepis chrysophylla var. minor Oliver W. Norvell 1931-2-22 1320 San Mateo Kings Mt. Road Comment
  UC5444  Chrysolepis chrysophylla var. minor J. Burtt Davy Jun 21 1893-Jun 23 1893 1127 San Mateo Pilarcitos Lake and Pilarcitos Canyon; Pilarcitos Lake, Pilarcitos Canyon Comment
  RSA176821  Cicendia quadrangularis John H. Thomas 1961-4-29 9182 San Mateo Jasper Ridge Biological Experimental Area, about five miles southwest of Palo Alto. Comment
  CAS-BOT-BC285236  Cichorium intybus J. H. Thomas 1954-5-28 4229 San Mateo Redwood City. Near intersection of Bayshore and Main St. Comment
  CAS-BOT-BC100937  Cirsium fontinale var. fontinale H. K. Sharsmith 1937-6-3 3951 San Mateo near road which connects Skyline Boulevard with road to Belmont. About 3 miles west of San Mateo, Crystal Springs Lake 152 Comment
  CDA1229  Cirsium fontinale var. fontinale T. C. Fuller 1970-5-13 19532 -A San Mateo East side of I-280, 100 yds. s. of junction Hwy 92 w. to Half Moon Bay. E slope above Crystal Springs Reservoir. Comment
  CDA1230  Cirsium fontinale var. fontinale T. C. Fuller 1970-5-13 19532 -B San Mateo East side of I-280, 100 yds. s. of junction Hwy 92 w. to Half Moon Bay. E slope above Crystal Springs Reservoir. Comment
  JEPS80472  Cirsium fontinale var. fontinale L. R. Heckard 1981-5-25 5662 San Mateo nw of junction (freeway interchange) of State Highway 92 U.S. 280 (on e side of the s end of Lower Crystal Springs Reservoir); Lower Crystal Springs Reservoir Comment
  UC1416521  Cirsium fontinale var. fontinale George E. Pilz 1965-7-12 114 San Mateo e side of Crystal Springs Reservoir South Coast Ranges 121 Comment
  CAS-BOT-BC285671  Cirsium occidentale var. occidentale A. A. Heller 1906-6-8 8379 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks Comment
  JROH632  Cirsium occidentale var. venustum John H. Thomas 1963-6-23 10169 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Westridge end of ridge Comment
  RSA101025  Cirsium occidentale var. venustum G. Oberlander 1949-6-25 251 San Mateo E of Sawyer Ridge, San Francisco Watershed Reserve Comment
  UCD130668  Cirsium occidentale var. venustum W. A. Harvey; J. M. Tucker 1948-6-29 1708 San Mateo Beside road to Portola State Park, just west of junction with Highway 5 (Skyline Boulevard). Comment
  CAS-BOT-BC280516  Cirsium quercetorum R. S. Ferris 1921-5-1 2184 San Mateo Arroyo de Los Frijoles Comment
  JEPS21772  Cirsium quercetorum J. H. Thomas 1954-6-11 4287 San Mateo about 0.25 mi n of Pidgen Point Light House Comment
  UC134771  Cirsium quercetorum Dr. E. B. Copeland 1903-6-7 3316 San Mateo Montara Point Pacific Coast, Montara Point Comment
  CAS-BOT-BC280526  Cirsium quercetorum Alice Eastwood; John Thomas Howell 1938-6-26 6054 San Mateo 2 miles south of San Gregorio Comment
  JROH635  Cirsium vulgare John H. Thomas 1970-7-5 15670 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC285867  Cirsium vulgare J. P. Rose 1907-9-28 s.n. San Mateo Near Cooley's Landing Comment
  CAS-BOT-BC285869  Cirsium vulgare George Oberlander 1949-8-20 335 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  RSA155840  Cirsium vulgare Peter H. Raven 1961-8-24 16585 San Mateo East side of Crystal Springs Lake Comment
  CAS-BOT-BC162603  Clarkia Paul Reeberg 1989-5-16 s.n. San Mateo Upper Cow Trough Ravine, near Ridge Trail - San Bruno Mountains 289 Comment
  CAS-BOT-BC164306  Clarkia davyi A. A. Heller 1906-6-8 8384 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks Comment
  CAS-BOT-BC163378  Clarkia purpurea subsp. purpurea Phillip C. Wheeler 1965-5-25 sn. San Mateo Buckeye Canyon Comment
  CAS-BOT-BC163968  Clarkia purpurea subsp. quadrivulnera W. R. Dudley 1903-5-31 s.n. San Mateo Alpine Road, Black Mt., Santa Cruz Range Comment
  RSA448311  Clarkia purpurea subsp. quadrivulnera H. F. Copeland 1929-7-4 1250 San Mateo La Honda Grade Comment
  SEINET4145648  Clarkia purpurea subsp. quadrivulnera A. A. Heller 1906-6-8 8382 San Mateo Near Ocean View, San Francisco Comment
  CAS-BOT-BC164562  Clarkia purpurea subsp. viminea H. L. Mason 1921-7-3 s.n. San Mateo Pescadero - La Honda Road Comment
  CAS-BOT-BC165148  Clarkia rubicunda Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo Lower part of Colma Canyon Comment
  CAS-BOT-BC165150  Clarkia rubicunda Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo In old quarry in Colma Canyon Comment
  CAS-BOT-BC165178  Clarkia rubicunda Ira L. Wiggins 1938-7-9 8933 San Mateo Pigeon Point, about one half mile North of the Light House Comment
  POM271814  Clarkia rubicunda Lyman Benson 1930-5-12 2122 San Mateo Stanford University, Lake Searsville 152 Comment
  RSA113601  Clarkia rubicunda Peter H. Raven 1957-6-24 10972 San Mateo North of the Light House, Pigeon Point Comment
  SD39467  Clarkia rubicunda Edith A. Purer 1932-7-16 San Mateo Near Halfmoon Bay. Comment
  CAS-BOT-BC165130  Clarkia rubicunda L. R. Abrams 1907-8-25 s.n. San Mateo Between [Pecadero] Pescadero and Half Moon Bay Comment
  CAS-BOT-BC165139  Clarkia rubicunda Peter H. Raven 1957-6-30 11011 San Mateo 1.8 miles south of Sharp Park on State Highway 1 Comment
  CAS-BOT-BC165159  Clarkia rubicunda Lewis S. Rose 1957-7-6 57117 San Mateo Skyline Blvd. w. of San Mateo 182 Comment
  RSA113612  Clarkia rubicunda Peter H. Raven 1957-6-30 11017 San Mateo 3.0 miles from State Highway 5 (Skyline Boulevard) on road to Portola State Park Comment
  UC1279935  Clarkia rubicunda Peter H. Raven 1952-7-4 11044 San Mateo 2.7 mi sw State Highway 5 (State Highway 9) Comment
  RSA23202  Clarkia rubicunda subsp. blasdalei I. L. Wiggins 1938-7-9 8933 San Mateo Pigeon Point, about one half mile north of the Light House. Comment
  UCSC007594  Clarkia rubicunda subsp. blasdalei Randall Morgan 2010-5-29 5038 San Mateo Rockaway Beach Comment
  CAS-BOT-BC165601  Clarkia unguiculata Daniel Cohen 1953-6-5 108 San Mateo Los Trancos Woods Comment
  CAS-BOT-BC439594  Claytonia parviflora subsp. parviflora Fred Hemphill 1973-4-8 656 San Mateo San Carlos. Area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC91483  Clematis lasiantha J. I. McMurphy 1906-4-30 20 San Mateo Santa Cruz Peninsula. Santa Cruz Mountains. Portola Valley. Comment
  CAS-BOT-BC91485  Clematis lasiantha C. F. Baker 1902-4-12 499 San Mateo La Honda. Comment
  JROH3406  Clematis lasiantha John H. Thomas 1959-4-5 7666 San Mateo Jasper Ridge Biological Preserve, Stanford University. Chaparral at the western end of the ridge Comment
  JROH3407  Clematis lasiantha John H. Thomas 1959-4-5 7666 San Mateo Jasper Ridge Biological Preserve, Stanford University. Chaparral at the western end of the ridge Comment
  JROH3410  Clematis lasiantha John H. Thomas 1966-4-29 11586 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12099147  Clematis lasiantha Unknown 1932-1 9022 San Mateo Los Trancos Woods Comment
  SEINET12057122  Clintonia andrewsiana F. H. Utech, Utech, C. L. 1972-7-17 72 -601 San Mateo road between Pescadero and La Honda, ca 2.5 mi before the junction with CA 84 183 Comment
  POM15684  Collinsia heterophylla A. D. E. Elmer 1903-04 5046 San Mateo Lake Merced Comment
  CAS-BOT-BC240928  Collinsia multicolor Reed C. Rollins 1941-3-22 2953 San Mateo San Bruno Hills, 2 miles southeast of Daly City Comment
  CAS-BOT-BC240935  Collinsia multicolor Reed C. Rollins 1942-4-30 3019 San Mateo San Bruno Hills, 1 mile south of Daly City 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
  JROH220  Conium maculatum John Hunter Thomas 1988-6-2 24505 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old bridge Comment
  SBBG54550  Conium maculatum C. Taylor 1971-6-12 158 San Mateo corner of Harbor Blvd and Old Country Rd, Belmont Comment
  JROH1850  Convolvulus arvensis John Hunter Thomas 1983-6-29 22694 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC285994  Conyza bonariensis Elizabeth McClintock; Walter Knight; Irja Knight 1967-8-1 s.n. San Mateo San Bruno Mountain. Along Hillside Blvd, southeast of Pig Ranch Ravine Comment
  CAS-BOT-BC286209  Conyza canadensis Walter Knight; Irja Knight; Elizabeth McClintock 1964-9-11 s.n. San Mateo San Bruno Mountain. Point San Bruno Comment
  RSA120503  Corallorhiza maculata S. S. Tillett, I. Sternback 1956-6-24 533 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  UCD77568  Corallorhiza maculata Robert E. Preston 2001-5-30 1534 San Mateo Ca. 9 mi nnw of Boulder Creek. 365 Comment
  SEINET5796159 Image available Cordylanthus pilosus L. S. Rose 1941-1 41362 San Mateo Woodside. Comment
  RSA51367  Cordylanthus rigidus subsp. rigidus L. S. Rose 1949-8-14 49163 San Mateo Emerald Lake, hills west of Redwood City. 122 Comment
  RSA93120  Corethrogyne californica var. californica D. D. Keck 1932-5-25 1785 San Mateo E side of Crystal Springs Lake Comment
  LA205836  Corethrogyne filaginifolia D. Keck; 1932-5-25 1785 San Mateo E side of Crystal Springs Lake Comment
  SJSU15948  Corethrogyne filaginifolia John Rawlings, Ken Hickman 2016-5-26 1824 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  POM57992  Corethrogyne filaginifolia var. californica C. F. Baker 1902-5-10 810 San Mateo Crystal Springs Lake. Comment
  RSA133854  Corethrogyne filaginifolia var. californica John H. Thomas 1958-6-11 7221 San Mateo About 4.3 miles due E of Belmont near Crystal Springs Reservoir. 91 Comment
  POM287561  Cornus californica Arthur L. Cohen 1935-2-22 525 San Mateo King's Mountain Road; Mt. Range: Santa Cruz; Watershed: San Francisco Bay. 152 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
  CAS-BOT-BC209819  Cornus glabrata Margaret A. Barry 1938-5-6 s.n. San Mateo Los Trancos Creek near Coal Mine Ridge Comment
  CAS-BOT-BC209820  Cornus glabrata Alice Eastwood 1912-6-10 344 San Mateo Crystal Springs Comment
  CDA34067  Cornus sericea D. G. Kelch 2011-3-13 11 .056-B San Mateo Near Half Moon Bay along Capistrano Creek. Comment
  CAS-BOT-BC210468  Cornus sericea subsp. occidentalis W. R. Dudley 1895-6-8 s.n. San Mateo Santa Cruz Peninsula. Pescadero Creek at Camp near Iverson's Comment
  CAS-BOT-BC190041  Cortaderia jubata Phillip C. Wheeler 1965-8-14 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon. Comment
  CDA1902  Cortaderia jubata G. D. Barbe 1977-11-17 2350 San Mateo At entrance to Skyline Memorial Park, Hwy 92 east of Skyline Drive (Hwy 35). 0 Comment
  CDA18372  Cortaderia selloana G. D. Barbe 1978-9-26 2442 San Mateo Skylawn Memorial Park; drive from Hwy 92 into the park. 716 Comment
  CDA18373  Cortaderia selloana G. D. Barbe 1978-9-26 2441 San Mateo Skylawn Memorial Park; drive from Hwy 92 into the park. 716 Comment
  CDA18374  Cortaderia selloana G. D. Barbe 1978-9-26 2440 San Mateo Skylawn Memorial Park; drive from Hwy 92 into the park. 716 Comment
  JROH4975  Cortaderia selloana John Hunter Thomas 1982-7-3 21060 San Mateo Jasper Ridge Biological Preserve, Stanford University. Lake edge Comment
  CAS-BOT-BC180279  Corylus cornuta subsp. californica Elizabeth McClintock 1972-3-26 s.n. San Mateo Middle Buckeye Canyon. San Bruno Mountain Comment
  CAS-BOT-BC180360  Corylus cornuta subsp. californica W. S. Atkinson 1901-7-3 s.n. San Mateo Pescadero. Santa Cruz Peninsula Comment
  CAS-BOT-BC180369  Corylus cornuta subsp. californica David D. Keck 1932-2-12 1362 San Mateo La Honda road, E slope of Coast Range above Searsville Lake 304 Comment
  CAS-BOT-BC180375  Corylus cornuta subsp. californica Walter Knight; Irja Knight 1964-9-2 61 San Mateo On Mouth of Colma Canyon. San Bruno Mountain Comment
  JROH1335  Corylus cornuta subsp. californica John H. Thomas 1976-10-16 18430 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 fire place ruins downstream Comment
  POM166453  Corylus cornuta var. californica A. D. E. Elmer 1903-03 4536 San Mateo Kings Mountain Comment
  RSA101050  Corylus cornuta var. californica G. Oberlander 1950-2-1 415 San Mateo Sawyer Ridge, San Francisco Watershed Reserve. Comment
  JEPS118180  Cotoneaster hodjingensis Dean W. Taylor 2004-6-2 19078 San Mateo San Bruno Mountain, southeast margin of the radio towers at the summit 365 Comment
  CAS-BOT-BC287308  Cotula australis Peter H. Raven 1951-2-8 2731 San Mateo Summit ridge, San Bruno Mts Comment
  JEPS37555  Cotula coronopifolia W. L. Jepson 1923-10-18 10255 San Mateo w of Colma (near ocean) Comment
  CAS-BOT-BC291415  Cotula coronopifolia Josephine D. Randall 1911-3-27 s.n. San Mateo Between Pacific Grove and Moss Beach, Monterey Peninsula Comment
Read comments
Oct 27 2021
  CAS-BOT-BC291465  Cotula coronopifolia John H. Thomas 1963-5-20 10100 San Mateo Ano Nuevo Island about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC291477  Cotula coronopifolia John Thomas Howell 1924-9-28 660 San Mateo Leslie Salt Rifinery, San Mateo Comment
  CDA19089  Cotula coronopifolia J. Beall 2001-4-24 PDR 064443 San Mateo Lightly scattered in Belmont Creek at Industrial Rd., Belmont. 0 Comment
  SEINET11841252  Cotula coronopifolia E. H. Graham 1931-1 6928 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC427837  Crassula connata Javier Penalosa 1963-3-30 2743 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF. 289 Comment
  JROH1888  Crassula connata John H. Thomas 1977-4-2 18509 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS50008  Crassula connata var. erectoides W. L. Jepson 1921-4-3 9106 San Mateo Colma Comment
  JROH3651  Crataegus monogyna John H. Thomas 1965-4-10 10560 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC56524  Crepis vesicaria subsp. taraxacifolia Steven Triano 1988-5-24 175 San Mateo Along w side of Sand Hill Road 0.5 mi s of its jct. with Whiskey Hill Road and 2.5 mi s of Woodside. 121 Comment
  JROH1838  Crocanthemum scoparium John H. Thomas 1977-5-4 18600 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1955  Croton setiger John H. Thomas 1959-8-22 8076 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1357  Cryptantha flaccida J. I. McMurphy 1911-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1365  Cryptantha micromeres John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1378  Cryptantha microstachys John Hunter Thomas 1978-5-16 19213 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1385  Cryptantha torreyana var. pumila Herbert Dengler 1961-4-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near round enclosure -- top of J.R. 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
  CAS-BOT-BC80652  Cupressus goveniana Harry A. Dutton 1949-9-1 s.n. San Mateo Butano Ridge between Pescadero and Butano Creeks, Santa Cruz Mountains. Comment
  JROH1859  Cuscuta californica var. californica John Hunter Thomas 1978-7-2 19240 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Rider's Shack Comment
  CAS-BOT-BC257693  Cyclospermum leptophyllum Peter Rubtzoff 1988-6-25 9927 San Mateo Menlo Park, on Willow Road near Alma Street. 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
  CAS-BOT-BC287333  Cynara cardunculus J. H. Thomas 1958-10-21 7487 San Mateo Near intersection of Bayshore Highway and Main St, Redwood City, near slough Comment
  RSA130412  Cynoglossum grande Josephine Randall 1908-3-22 s.n. San Mateo Corte de Madera Canyon near Alpine Road Comment
  SD38500  Cynoglossum grande Edith A. Purer 1933-4-18 3649 San Mateo Above Emerald Lake Comment
  JROH5016  Cynosurus echinatus John Rawlings 2013-4-13 1127 San Mateo Jasper Ridge Biological Preserve, Stanford University. Crest of ridge above Bear Creek serpentine. 96 Comment
  JROH4390  Cyperus eragrostis John H. Thomas 1974-10-29 17647 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-BC114456  Cyperus eragrostis W. R. Dudley 1908-6-19 s.n. San Mateo Road from Tanforan to Jersey Dairy. Comment
  CAS-BOT-BC114461  Cyperus eragrostis George Thomas Oberlander 1949-7-24 318 San Mateo Marsh, Lower Crystal Spr. Lake. Comment
  JROH5716  Cyperus erythrorhizos John Rawlings 2015-9-22 1640 San Mateo Jasper Ridge Biological Preserve, Stanford University. In mud of Corte Madera Creek delta near open water 104 Comment
  UC673588  Cypripedium fasciculatum Monica Deitrich March 1927 San Mateo Lake Pilarcitos Comment
  SEINET5546172  Cypselea humifusa H. S. Gentry 1931-1 72 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  SBBG67105  Cytisus scoparius S. W. Hutchinson -Apr-1927 615 San Mateo La Honda Cyn, near Redwood City 152 Comment
  SD37828  Cytisus scoparius Marie Cummings 1933-5-23 3666 San Mateo La Honda 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
  SJSU15434  Dactylis glomerata Toni Corelli 2010-5-17 674 San Mateo Pescadero State Beach and Marsh Natural Preserve, south of north parking lot 6 Comment
  CAS-BOT-BC192230  Danthonia californica A. G. Vestal 1924-5-20 s.n. San Mateo Sandhill Road (west of Menlo Park) Comment
  CAS-BOT-BC192239  Danthonia californica W. R. Dudley 1899-5-14 s.n. San Mateo Top of Sneath Ranch hill, West of South Bruno Comment
  JROH5040  Danthonia californica John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15928  Danthonia californica John Rawlings, Toni Corelli 2016-4-29 1761 San Mateo Cascade Field, north and south of Cascade Cr. Trail, Ano Nuevo State Park 21 Comment
  JROH1903  Datisca glomerata John H. Thomas 1961-6-14 9543 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH1904  Datisca glomerata John H. Thomas 1961-6-14 9543 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UC872608  Datisca glomerata Roxana Stinchfield 1915-10-14 257 San Mateo San Francisquito Creek; Santa Cruz Mountain Peninsula, San Francisquito Creek Comment
  CHSC1953  Daucus pusillus A. Goekler 1929-5-10 San Mateo Moss Beach. Comment
  JROH224  Daucus pusillus John H. Thomas 1969-6-4 15114 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA470468  Daucus pusillus T. Gertrude Williamson 1924-6-28 s.n. San Mateo Moss Beach Comment
  HSC23959  Daucus pusillus Mary Katherine Wicksten 1971-6-24 120 San Mateo Huddart Park, side of park entrance Comment
  OBI16292  Deinandra corymbosa Lewis S. Rose 1965-9-4 65100 San Mateo Skyline blvd and Half Moon Bay Rd; Cahill Ridge 244 Comment
  UC481024  Deinandra corymbosa Katharine Brandegee 1908-8-1 San Mateo Montana Point Comment
  SD30844  Deinandra corymbosa Edith A. Purer 1933-5-31 3662 San Mateo Spring Valley Lakes. Comment
  CAS-BOT-BC299215  Deinandra corymbosa subsp. corymbosa Walter Knight; Irja Knight 1965-5-15 s.n. San Mateo Pig Ranch Ravine, San Bruno Mountain Comment
  CAS-BOT-BC299195  Deinandra corymbosa subsp. corymbosa Hazelle A. Thomas 1956-6-24 s.n. San Mateo Arroyo de la Frioles along the coast Comment
  CAS-BOT-BC292119  Delairea odorata John H. Thomas 1968-12-18 14874 San Mateo Beach at Pescadero Comment
  CAS-BOT-BC292120  Delairea odorata Elizabeth McClintock; Walter Knight; Irja Knight 1964-1-12 s.n. San Mateo San Bruno Mountain. Crocker Ave. Comment
  JEPS8375  Delphinium Rimo Bacigalupi with L. Constance and C. R. Bell 1951-3-25 3205 San Mateo near San Francisco; Colma Canyon 137 Comment
  OBI10661  Delphinium californicum Lewis S. Rose 1965-5-3 65058 San Mateo San Bruno Mtn, Colma Cyn 61 Comment
  UC311529  Delphinium californicum A. D. E. Elmer July 1903 4548 San Mateo Pilarcitos Stone Dam Comment
  CAS-BOT-BC9219  Delphinium californicum Margaret A. Barry 1937-6-24 187 San Mateo North slope near Los Trancos Creek on Coal Mine Ridge Comment
  CAS-BOT-BC9212  Delphinium californicum subsp. californicum Josephine D. Randall 1907-6-5 310 San Mateo Los Trancos Road, Stanford University Comment
  CAS-BOT-BC10294  Delphinium hesperium L. Gershenson 1980-3-15 3 San Mateo Rest stop on 280 north of 92 182 Comment
  JROH3446  Delphinium hesperium subsp. hesperium John Hunter Thomas 1977-6-16 18775 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3447  Delphinium hesperium subsp. hesperium John Hunter Thomas 1980-5-6 19927 San Mateo Jasper Ridge Biological Preserve, Stanford University 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-BC7895  Delphinium variegatum Ned Cahill 1974-4-19 153 San Mateo near jct. of Canada and Edgewood Roads, about 3 mi. westward from Redwood City Comment
  CAS-BOT-BC7897  Delphinium variegatum subsp. variegatum W. R. Dudley 1896-4-4 s.n. San Mateo near Crystal Springs Comment
  JROH3462  Delphinium variegatum subsp. variegatum Roger L. von Preissig 1954-4-23 25 San Mateo Jasper Ridge Biological Preserve, Stanford University 167 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
  JROH3464  Delphinium variegatum subsp. variegatum John H. Thomas 1974-4-25 17206 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grasslands on top of ridge, Searsville end Comment
  POM270794  Delphinium variegatum subsp. variegatum Lyman Benson 1931-3-15 2638 San Mateo Emerald Lake; Redwood City; Mt. Range: Santa Cruz 152 Comment
  UC118662  Delphinium variegatum subsp. variegatum Alice Eastwood 1896-4-1 San Mateo Crystal Springs Comment
  JEPS48647  Dendromecon rigida Elsa Kraeger 1926-2-21 San Mateo along roadside n La Honda Comment
  UC204139  Deschampsia A. D. E. Elmer June, 1903 4693 San Mateo San Pedro Comment
  CAS-BOT-BC192594  Deschampsia cespitosa subsp. holciformis Harold E. Stark 1959-6-4 s.n. San Mateo S. F. Watershed and Wildlife Refuge 1/2 mi. w. San Bruno, N. end of Lake San Andreas Comment
  JROH5049  Deschampsia danthonioides John Hunter Thomas 1982-5-7 20923 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5051  Deschampsia danthonioides John H. Thomas 1983-6-29 22718 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC201910  Deschampsia elongata W. R. Dudley 1910-5-26 s.n. San Mateo Coal Mine Ridge, near Black Mt. Comment
  JROH5073  Deschampsia elongata John Hunter Thomas 1988-5-16 24465 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low flow crossing. Comment
  CAS-BOT-BC709  Dicentra formosa Charles Piper Smith 1922-4-29 3502 San Mateo Montara Mountain Comment
  UCR51654  Dicentra formosa 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
  CAS-BOT-BC909  Dicentra formosa subsp. formosa Charles Fuller Baker 1902-3-22 344 San Mateo Crystal Springs Lake Comment
  SEINET10833780  Dichelostemma capitatum Charles F. Baker 1902-5-4 Baker 76 San Mateo Woodside, Calif. Common in places near rocky outcrops. Comment
  JROH4654  Dichelostemma capitatum subsp. capitatum Elmer I. Applegate 1895-5-11 703 b San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Dam Comment
  CAS-BOT-BC150442  Diplacus aurantiacus Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo unspecified Comment
  CAS-BOT-BC150443  Diplacus aurantiacus J. F. Emmel 1970-2-22 256 San Mateo 0.3 air mile SE of 1314 summit, on NE slope of San Bruno Mt. Comment
  CAS-BOT-BC151990  Diplacus douglasii L. R. Abrams 1915-3-23 5566 San Mateo Between Woodside and Crystal Springs Lake by crossroads - Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC121856  Dirca occidentalis Lewis S. Rose 1939-4-12 39060 San Mateo Crystal Springs Lake 152 Comment
  JEPS47163  Dirca occidentalis W. L. Jepson 1922-3-19 9536 San Mateo Lake San Andreas Comment
  JROH4200  Dirca occidentalis John H. Thomas 1967-3-13 12409 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4209  Dirca occidentalis John H. Thomas 1977-2-20 18470 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4216  Dirca occidentalis Carol Zabel 1989-2-20 1 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
  RSA15268  Dirca occidentalis Carl B. Wolf 1927-3-2 s.n. San Mateo Above Searsville Lake Comment
  SEINET10776855 Image available Dirca occidentalis John H. Thomas 1958-2-15 Thomas 6980 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  SEINET3821107 Image available Dirca occidentalis Lewis S. Rose 1933-6-9 33222 San Mateo San Andreas Lake. Comment
  UC518034  Dirca occidentalis Lewis S. Rose 1933-6-9 33222 San Mateo San Andreas Lake Comment
  CAS-BOT-BC121861  Dirca occidentalis Roberta Gilbert 1933-5-14 s.n. San Mateo Near San Geronimo Creek Comment
  JEPS61835  Disporum smithii Lucille Roush 1928-3-11 San Mateo Butano Creek Comment
  CAS-BOT-BC195722  Distichlis spicata John H. Thomas 1963-5-20 10150 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NE of Santa Cruz Comment
  UCD64382  Distichlis spicata var. stolonifera A. A. Beetle 1942-10-1 1889 San Mateo Near San Mateo. Borders of San Francisco Bay. Comment
  JEPS30787  Dodecatheon clevelandii subsp. patulum G. Thomas Robbins 1937-4-11 89 San Mateo above San Mateo (on road to Woodside); above San Mateo Comment
  JROH3385  Dodecatheon hendersonii John H. Thomas 1968-3-17 14179 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA15250  Dodecatheon hendersonii Carl B. Wolf 1927-2-19 211 San Mateo Skyline Blvd. above Spring Valley Lakes, near where Belmont Road crosses Comment
  SEINET5548367  Dodecatheon hendersonii H. S. Gentry 1931-1 10 San Mateo 1.5 miles W of San Mateo, Half-Moon Bay road. Comment
  CAS-BOT-BC159538  Drymocallis glandulosa var. glandulosa Le Roy Abrams 1902-5-20 2466 San Mateo King's Mountain Comment
  CAS-BOT-BC159549  Drymocallis glandulosa var. glandulosa Hester Davis 1920-4-28 129 San Mateo Portola Valley - Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC159502  Drymocallis glandulosa var. glandulosa Elizabeth McClintock 1965-3-28 s.n. San Mateo From burned over area in Devil's Arroyo - San Bruno Mountain Comment
  CAS-BOT-BC159503  Drymocallis glandulosa var. glandulosa Elizabeth McClintock 1963-6-9 s.n. San Mateo Exposed slopes below top of mountain - San Bruno Mountain Comment
  CAS-BOT-BC159540  Drymocallis glandulosa var. glandulosa H. A. Lewis 1908-5-7 s.n. San Mateo Near Searsville Comment
  JROH25  Dryopteris arguta John H. Thomas 1970-1-1 15495 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH28  Dryopteris arguta Lawrence J. Winship 1974-11-2 5 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH33  Dryopteris arguta John H. Thomas 1976-11-5 18433 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  JROH41  Dryopteris arguta John Hunter Thomas 1982-11-8 21257 C San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  POM23159  Dryopteris arguta C. F. Baker 1902-1-15 320 San Mateo Kings Mountain. West side of King's Mountain, San Mateo Co. CA. Comment
  RSA693756  Dryopteris arguta Anonymous 1924-7-4 s.n. San Mateo Near St. Helena, Woods beyond WHite Sulphur Springs Comment
  JEPS49939  Dudleya caespitosa W. L. Jepson 1910-8-18 4164 San Mateo Gazos Creek Pescadero Comment
  CAS-BOT-BC410870  Dudleya caespitosa George Oberlander 1950-6-3 1036 San Mateo San Andreas Valley Comment
  CAS-BOT-BC109694  Dudleya farinosa Ira L. Wiggins 1929-7-14 3805 San Mateo Bluffs above Pescadero sand Beach. Comment
  CAS-BOT-BC428361  Dudleya farinosa L. R. Abrams 1909-8-2 4272 San Mateo At Pescadero Comment
  SJSU16065  Dysphania ambrosioides Toni Corelli 2009-9-9 438 San Mateo Half Moon Bay State Beach, in low dunes, Half Moon Bay Comment
  JROH5837  Dysphania ambrosioides Ann Lambrecht 2011-8-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; now-dry bed of San Francisquito Creek below Dennis Martin marker Comment
  CAS-BOT-BC197265  Echinochloa muricata var. microstachya George Oberlander 1949-9-25 394 San Mateo San Francisco Watershed Reserve. Upper Crystal Spr. Lake Comment
  CAS-BOT-BC113593  Eleocharis acicularis George Thomas Oberlander 1950-5-6 841 San Mateo Pilarcitos Canyon Comment
  POM144805  Eleocharis palustris E. B. Copeland 1903-03 3340 San Mateo Searsville. Comment
  CAS-BOT-BC203879  Elymus X hansenii Elizabeth McClintock; Paul Reeberg 1989-5-30 s.n. San Mateo San Bruno Mountains. Owl Canyon 121 Comment
  SD38364  Elymus condensatus Edith A. Purer 1932-7-18 4006 San Mateo Half Moon Bay, sand dunes Comment
  CAS-BOT-BC235204  Elymus multisetus Phillip C. Wheeler 1965-6-20 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  JROH5126  Elymus multisetus John Hunter Thomas 1978-5-16 19218 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15940  Elymus trachycaulus subsp. trachycaulus John Rawlings, Ken Hickman 2016-5-26 1816 A San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  SJSU15955  Elymus trachycaulus subsp. trachycaulus John Rawlings, Ken Hickman 2016-5-26 1832 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  JROH3045  Epilobium brachycarpum John Hunter Thomas 1981-10-25 20768 San Mateo Jasper Ridge Biological Preserve, Stanford University; near main gate Comment
  POM254417  Epilobium brachycarpum F. W. Peirson 1925-9-13 6428 San Mateo Rockaway beach Comment
  RSA176590  Epilobium brachycarpum John H. Thomas 1961-8-27 9696 San Mateo Colma; open sandy field near intersection of El Camino Real and F Street 46 Comment
Read comments
Jul 12 2015
  SEINET6635579 Image available Epilobium brachycarpum Lewis S. Rose 1932-1 32600 San Mateo Salada Beach Comment
  CAS-BOT-BC166617  Epilobium canum subsp. canum Margaret A. Barry 1937-7-15 194 San Mateo Exposed slope on Coal Mine Ridge Comment
  RSA40474  Epilobium canum subsp. canum W. R. Dudley 1893-7-22 s.n. San Mateo Santa Cruz Mountain Peninsula: Guadalupe Valley Comment
  SEINET12191216  Epilobium ciliatum subsp. ciliatum Unknown 1932-1 9174 A San Mateo Los Tramcos Woods Comment
  POM32681  Epilobium ciliatum subsp. watsonii Copeland 1903-6-5 3328 San Mateo Montara Point. Comment
  SD38385  Epilobium ciliatum subsp. watsonii Edith A. Purer 1933-7-27 5340 San Mateo High stabilized sand dunes, Pigeon Point. Comment
  UC306525  Epilobium densiflorum A. D. E. Elmer June, 1903 4273 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC389734  Equisetum J. Lovelle 1973-8-5 48 San Mateo Pomponio Canyon Comment
  JROH61  Equisetum arvense John Hunter Thomas 1983-7-7 22822 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC384628  Equisetum hyemale subsp. affine R. D. Hennessey 1964-4-26 70 San Mateo Area where Pilarcitos Creek empties into the ocean Comment
  CAS-BOT-BC57602  Equisetum telmateia Ira L. Wiggins 1925-4-1 1669 San Mateo First bridge across small creek on Kings Mountain Road above Woodside Comment
  CAS-BOT-BC57601  Equisetum telmateia Ira L. Wiggins 1931-3-15 5103 San Mateo between Skyline Boulevard and La Honda Comment
  CAS-BOT-BC57606  Equisetum telmateia L. R. Abrams 1904-3-7 6343 San Mateo Bear Gulch near Time Falls Comment
  CAS-BOT-BC57617  Equisetum telmateia J. H. Thomas 1950-3-5 1295 San Mateo About 5 miles from Pescadero toward La Honda along highway 152 Comment
  CHSC25149  Equisetum telmateia subsp. braunii R. N. Bowman 1971-4-5 9 San Mateo 10.7 mi. N.W. of Big Basin State Park office on Gazos Creek Rd., ca. 15 yds. W. of rd. along Streambed. 91 Comment
  UC150823  Equisetum telmateia subsp. braunii C. F. Baker 1902-3-18 324 San Mateo w side King's Mt. Comment
  SJSU15447  Eragrostis curvula John Rawlings 2009-5-1 1048 A San Mateo This ornamental grass appeared along a short stretch of San Hill Rd. at the entrance to the Horse Park at Woodside. 119 Comment
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Feb 18 2015
  JROH5721  Eragrostis pectinacea var. pectinacea John Rawlings 2015-9-22 1642 San Mateo Jasper Ridge Biological Preserve, Stanford University. In mud of Corte Madera Creek delta near open water 104 Comment
  JROH5879  Eragrostis pectinacea var. pectinacea Ann Lambrecht 2006-7-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Sand Hill Road fence 5 or 6 m from Bear Creek crossing. 89 Comment
  CAS-BOT-BC299886  Erechtites glomeratus Ira L. Wiggins 1934-8-11 6970 San Mateo Beside tannery, Redwood City Comment
  JEPS112717  Eriastrum abramsii Dean W. Taylor 1994-5-10 14261 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
  JROH5587  Erigeron foliosus var. foliosus Winkie Lennihan 1989-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; north of Hillside Lab just south of Trail 7 152 Comment
  JEPS89680  Erigeron glaucus Dean W. Taylor 1988-3-30 9466 San Mateo northern slope of se ridge of San Bruno Mountain (near the ridgecrest, right-of-way of eastern-most set of PG&E high-voltage powerlines crossing the mountain); Central Coast Region (CCo), San Bruno Mountain 176 Comment
  CAS-BOT-BC295075  Erigeron glaucus Daniel Cohen 1953-5-9 91 San Mateo Between Pescadero and San Gregorio Comment
  JROH693  Erigeron karvinskianus Ann Lambrecht 2009-4-6 40 San Mateo Jasper Ridge Biological Preserve, Stanford University; rock outcrop on south side of San Francisquito Creek below Trail 2 Comment
  CAS-BOT-BC300063  Erigeron philadelphicus Elizabeth McClintock; Philip Wheeler 1967-6-11 s.n. San Mateo San Bruno Mountain. To south of new Guadalupe Parkway just before it meets Radio Road Comment
  CAS-BOT-BC300246  Erigeron reductus var. angustatus John Thomas Howell 1930-11-9 s.n. San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC216127  Eriodictyon californicum A. D. E. Elmer 1903-4-1 4801 San Mateo Lake San Andreas Comment
  CAS-BOT-BC216129  Eriodictyon californicum Walter Knight 1964-9-14 850 San Mateo Peak Mt., west of summit Comment
  LA205645  Eriodictyon californicum Lewis S. Rose; 1941-7-2 41288 San Mateo Kings Mountain 480.0 Comment
  POM65463  Eriodictyon californicum A. D. E. Elmer 1903-04 4801 San Mateo Lake San Andreas Comment
  POM165225  Eriogonum gracile var. gracile Edward L. Greene 1902-9-10 1675 San Mateo Crystal Springs Lake Comment
  RSA17962  Eriogonum gracile var. gracile Carl B. Wolf 1927-8-15 718 San Mateo Jasper Ridge near Searsville Lake Comment
  CAS-BOT-BC251978  Eriogonum latifolium Barrett Anderson; Peter Rubtzoff 1988-4-22 3666 San Mateo San Bruno Mountain. Radio Road south of Guadalupe Canyon Parkway 365 Comment
  RSA107485  Eriogonum latifolium L. S. Rose 1955-7-25 55167 San Mateo Pigeon Point 6 Comment
  RSA165299  Eriogonum latifolium C. F. Baker 1902-10-1 1748 San Mateo Pillar Point. Comment
  UC566073  Eriogonum latifolium G. E. Sindel 1935-7-25 302 San Mateo mouth of Pescadero Creek Santa Cruz Quadrangle, Pescadero Creek 3 Comment
  UCSB461  Eriogonum latifolium Myrick, Donald 1966-6-11 San Mateo Pigeon Point on Highway #1 south of San Francisco Comment
  SDSU6740  Eriogonum latifolium D. F. Howe 1962-7-26 3356 San Mateo 1.1 miles south of San Mateo-Santa Cruz Co. line Comment
  SEINET11938062  Eriogonum latifolium M. T. Doutt 1931-1 602 San Mateo near Portola, along ocean Comment
  UCSC007632  Eriogonum latifolium Randall Morgan 2004-7-23 4254 San Mateo Rockaway Beach Comment
  JROH3224  Eriogonum luteolum var. luteolum A. G. Vestal 1937-7-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Southeast side of ridge not far from Stanford property line. Comment
  UC306654  Eriogonum luteolum var. luteolum A. D. E. Elmer June, 1903 4309 San Mateo Belmont Comment
  RSA169305  Eriogonum nudum var. auriculatum L. S. Rose 1964-9-9 64074 San Mateo Emerald Lake, west of Redwood City 244 Comment
  CAS-BOT-BC269002  Eriogonum nudum var. auriculatum Josephine D. Randall 1907-7-6 284 San Mateo Santa Cruz Peninsula. Iverson's, near Peters Creek Comment
  CAS-BOT-BC269003  Eriogonum nudum var. auriculatum Margaret A. Barry 1938-6-22 171 San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC304087  Eriophyllum confertiflorum Ned Cahill 1974-4-30 235 San Mateo N slope of the knoll, near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City Comment
  HSC23886  Eriophyllum confertiflorum Mary Katherine Wicksten 1971-7-2 150 San Mateo Huddart Park, near Mimwok area Comment
  JROH698  Eriophyllum confertiflorum var. confertiflorum John H. Thomas 1969-5-28 15076 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH699  Eriophyllum confertiflorum var. confertiflorum D. E. Breedlove 1971-5-31 19353 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH716  Eriophyllum confertiflorum var. confertiflorum John Hunter Thomas 1989-5-9 24717 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC31696  Eriophyllum confertiflorum var. confertiflorum J. Burtt Davy 1893-6-17 772 San Mateo Belmont Comment
  JEPS19486  Eriophyllum lanatum var. arachnoideum Peter H. Raven 1957-6-24 10963 San Mateo just s of Linda Mar Comment
  JROH719  Eriophyllum lanatum var. arachnoideum Volney Rattan unspecified s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  RSA18518  Eriophyllum lanatum var. arachnoideum C. B. Wolf 1927-7-14 601 San Mateo Summit of Kings Mountain Rd. Comment
  JEPS34328  Eriophyllum lanatum var. arachnoideum L. R. Heckard and Rimo Bacigalupi 1963-7-2 1334 San Mateo above summit of old country road; Montara Mt. 304 Comment
  CAS-BOT-BC301973  Eriophyllum staechadifolium Dr. Barton W. Evermann 1924-6-22 s.n. San Mateo Ano [Ano] Nuevo Island Comment
  JEPS34470  Eriophyllum staechadifolium L. R. Heckard and Rimo Bacigalupi 1963-7-2 1359 San Mateo trail to (nw slope) Montara Peak (above old county road) 304 Comment
  POM358130  Eriophyllum staechadifolium Glenn A. Gorelick 1967-5-5 s.n. San Mateo San Bruno Mts., overlooking Daly City near San Francisco 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
  UC483493  Eriophyllum staechadifolium Ira L. Wiggins 1929-7-4 3793 San Mateo sea bluffs at Pescadero Beach Comment
  CAS-BOT-BC301972  Eriophyllum staechadifolium E. M. Zeile 1921-7-30 s.n. San Mateo 1/2 mile north of Pigeon Point lighthouse. Comment
  RSA116763  Eriophyllum staechadifolium L. R. Abrams 1907-08 s.n. San Mateo Between Pescadero and Half Moon Bay Comment
  RSA116778  Eriophyllum staechadifolium W. R. Dudley 1898-1-4 s.n. San Mateo Bank of Ocean Shore- mouth of Waddell Creek. Santa Cruz Mountain Peninsula Comment
  SEINET11850781  Eriophyllum staechadifolium var. artemisiaefolium Unknown 1932-1 9155 San Mateo Gov. Rolph Estate Comment
  JROH2595  Erodium botrys John H. Thomas 1969-4-12 14888 a San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2606  Erodium cicutarium John H. Thomas 1977-5-14 18612 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2607  Erodium cicutarium John Hunter Thomas 1980-4-10 19880 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Searsville Lab. Comment
  POM259929  Eryngium armatum I. L. Wiggins 1939-8-2 9296 San Mateo Ano Nuevo Point Comment
  UC174154  Eryngium armatum Katharine Brandegee June, 1905 San Mateo Moss Beach Comment
  JROH236  Eryngium jepsonii John H. Thomas 1964-7-9 10443 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH239  Eryngium jepsonii John H. Thomas 1974-6-27 17445 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC54511  Erysimum capitatum G. B. Rossbach; R. P. Rossbach 1938-6-12 860 San Mateo Coast Range. La Honda grove. 121 Comment
  CAS-BOT-BC54838  Erysimum franciscanum G. B. Rossbach 1955-3-26 577 San Mateo Crest of San Bruno Mountain near radio tower. 400 Comment
  CAS-BOT-BC54850  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-3-28 905 a fl. 905b fr. San Mateo San Mateo Creek, below Crystal Springs Lake. 60 Comment
  CAS-BOT-BC54869  Erysimum franciscanum Craig Martz 1985-4-15 205 San Mateo South end of Devil's Slide, both sides of SR1. From coast to saddle between San Pedro and Montara Mountain. 304 Comment
  CAS-BOT-BC54870  Erysimum franciscanum Craig Martz 1985-4-15 205 San Mateo South end of Devil's Slide, both sides of SR1. From coast to saddle between San Pedro and Montara Mountain. 304 Comment
  LA204415  Erysimum franciscanum H. E. Parks; S. T. Parks 1930-3-10 401 San Mateo Spring Valley Lakes Comment
  RSA101912  Erysimum franciscanum G. B. Rossbach 1939-5-12 900 San Mateo 2.5 miles N of Montara near Devil s Slide Comment
  RSA102123  Erysimum franciscanum G. B. Rossbach 1955-3-26 576 San Mateo Upper N slope of San Bruno Mountain, N of radio tower 335 Comment
  RSA157747  Erysimum franciscanum John H. Thomas 1961-5-7 9316 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  RSA530223  Erysimum franciscanum Glenn A. Gorelick 1967-11-10 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco Comment
  UC1034933  Erysimum franciscanum G. B. and R. P. Rossbach 1939-4 907 a & b San Mateo above rd. n. end of Sawyer Ridge (between San Andreas Lake & San Mateo Creek) 289 Comment
  UC1034943  Erysimum franciscanum G. B. and R. P. Rossbach 1938-4-3 807 San Mateo moist ravine in upper slope of hills San Bruno Hills Comment
  UC1084387  Erysimum franciscanum G. Thomas Robbins 1937-4-11 93 San Mateo meadow near Spring Valley Lakes (along road to Woodside) Comment
  UC136023  Erysimum franciscanum C. F. Baker 1902-3-22 342 San Mateo Crystal Springs Lake Comment
  UC136024  Erysimum franciscanum Alice Eastwood 1903-2-8 3237 San Mateo Spring Valley Comment
  CAS-BOT-BC403538  Eschscholzia californica A. D. E. Elmer 1903-6-1 4680 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC403540  Eschscholzia californica A. A. Heller 1907-4-25 8457 San Mateo San Bruno Hills Comment
  CAS-BOT-BC403549  Eschscholzia californica John H. Thomas 1971-5-2 15812 San Mateo Near intersection of Canada and Edgewater roads. About 4 miles SW of center of Redwood City 304 Comment
  JEPS121486  Eschscholzia californica Adam C. Schneider 2013-5-17 157 San Mateo Crystal Springs Reservoir Comment
  CAS-BOT-BC403558  Eschscholzia californica W. R. Ernst 1957-4-2 102 San Mateo Near junction of Highway 1 and Skyline Blvd. among San Francisco Headlands Comment
  POM272330  Eschscholzia californica subsp. californica Lyman Benson 1930-4-6 2045 San Mateo Moss Beach. 15 Comment
  JROH2977  Eucalyptus globulus John H. Thomas 1980-11-18 20173 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI69920  Eucalyptus globulus Jenn Yost and Matt Ritter, Matt Ritter 8-Apr 66 San Mateo Exit 27 on 280, Farm Hill rd, Woodside Comment
  CAS-BOT-BC202745  Euonymus occidentalis W. R. Dudley 1895-6-6 s.n. San Mateo Santa Cruz Mountain Peninsula. Along Pescadero Creek, near Iversons Comment
  JEPS9607  Euonymus occidentalis var. occidentalis Miss Susie Mott 1930-9-24 San Mateo Butano Canyon Santa Cruz Mts., Butano Canyon Comment
  UCSC000450  Euphorbia crenulata H. S. Yates 1935-5-8 5211 San Mateo 1.5 mi. S. Mindego Hill Santa Cruz 335 Comment
  JROH1966  Euphorbia lathyris Carol Zabel and Ruth Porter 1999-5-17 41 b San Mateo Jasper Ridge Biological Preserve, Stanford University; north side of trail 12 Comment
  JROH1967  Euphorbia oblongata John Rawlings 2012-10-15 1118 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek bed near Dennis Martin site 71 Comment
  UCR123136  Euphorbia oblongata Don Pendleton 2002-4-26 s.n. San Mateo San Francisco Bay Region, Woodside, Sandhill Road, 0.25 mi north of Portola Road, west of Hwy 280 152 Comment
  CDA19846  Euphorbia oblongata D. Pendleton 2002-4-25 PDR 065843 San Mateo San Francisco Bay Area; Sandhill Rd, 0.25 mi N of Portola Rd, Woodside. 0 Comment
  UC202830  Euphorbia spathulata A. D. E. Elmer Apr 1903 4740 San Mateo Crystal Springs Lake Comment
  RSA14972  Euphorbia spathulata L. S. Rose 1935-5-4 35151 San Mateo Burlingame. Comment
  CAS-BOT-BC310722  Euthamia occidentalis John H. Thomas 1976-10-7 18393 San Mateo Along coast highway #1, 0.6 miles north of northern most road to Pigeon Pt. Lighthouse. About 4.2 miles almost due south of Pescadero 30 Comment
  RSA176410  Euthamia occidentalis John H. Thomas 1964-10-2 10511 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Edge of Searsville Lake near Bridge. Comment
  RSA507774  Euthamia occidentalis J. C. Semple, S. Heard 1986-8-23 8596 San Mateo 7.5 km N of Santa Cruz County line on CA-1 Comment
  UCSC007760  Euthamia occidentalis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  UCD98886  Fallopia convolvulus J. D. Skoss 1948-7-25 47 San Mateo San Vicente Canyon near Montara. Comment
  SJSU15416  Festuca arundinacea Toni Corelli 2010-5-21 672 San Mateo Pescadero State Beach and Marsh Natural Preserve. North Pond Trail 5 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
  CAS-BOT-BC278351  Festuca californica subsp. californica L. R. A. 1902-5-11 2461 San Mateo Crystal Springs 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
  JROH5481  Festuca microstachys John H. Thomas 1963-5-15 10093 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5491  Festuca microstachys Stephen N. Turitzin 1976-3-7 5 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC279052  Festuca rubra A. G. Vestal 1926-5-19 s.n. San Mateo North end of San Bruno Mt Comment
  CAS-BOT-BC279053  Festuca rubra Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  SEINET175509 Image available Festuca rubra David D. Keck 1932-5-6 1478 San Mateo Above Millbrae Highlands Comment
  SJSU15424  Foeniculum vulgare Toni Corelli 2011-8-31 712 San Mateo Pescadero State Beach and Marsh Natural Preserve, along Butano Trail 18 Comment
  CAS-BOT-BC166812  Foeniculum vulgare Peter Rubtzoff 1978-9-16 9269 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; in upper part of East Fork Colma Creek canyon. Comment
  CDA34004  Fragaria californica D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .151 San Mateo Santa Cruz Mountains.; Skyline Blvd, ~ 5 miles W of Los Altos. Comment
  POM275004  Fragaria californica Lyman D. Benson 1928-4-21 101 San Mateo Stanford University, Mt. Range: Santa Cruz; River: San Francisquito Creek. 91 Comment
  CDA33775  Fragaria chiloensis D. G. Kelch 2011-3-13 11 .048 San Mateo Pacifica. Along sea bluffs Comment
  CHSC57097  Fragaria chiloensis Steven Triano 1988-5-24 216 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  UCD113190  Fragaria chiloensis Everett H. Everson 1951-4-28 40 San Mateo 2.2 miles south of Pescadero, on Highway 1. 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
  JROH3674  Fragaria vesca John Hunter Thomas 1991-4-25 24999 San Mateo Jasper Ridge Biological Preserve, Stanford University. Redwood area below dam Comment
  CAS-BOT-BC457528  Fragaria vesca subsp. californica J. H. Thomas 1949-3-29 192 San Mateo Kings Mountain. Comment
  JROH3541  Frangula californica subsp. californica John H. Thomas 1974-8-11 17509 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA391414  Frankenia salina D. D. Keck 1931-9-27 1269 San Mateo Dumbarton Bridge. Comment
  CAS-BOT-BC223548  Fraxinus latifolia W. R. Dudley 1894-10-24 s.n. San Mateo Santa Cruz Peninsula. Near San Francisquito Creek Comment
  CAS-BOT-BC223550  Fraxinus latifolia Herman Knoche 1919-10-8 Series A, No. 2488 San Mateo Between Crystal Springs & San Mateo Comment
  UC1140922  Fremontodendron californicum subsp. californicum W. R. Dudley 1897-12-29 San Mateo Santa Cruz Peninsula, Butano Creek Butano Creek; Santa Cruz Peninsula, Butano Creek Comment
  CAS-BOT-BC130122  Fritillaria affinis L. R. A. 1902-4-13 2339 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC130134  Fritillaria affinis John Hunter Thomas 1954-4-3 3821 San Mateo Along San Gregorio Creek about 1.5 miles west of La Honda 106 Comment
  CAS-BOT-BC130123  Fritillaria affinis D. D. Davis 1903-5-2 s.n. San Mateo Near La Honda Comment
  RSA196570  Fritillaria affinis W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula; ravine above Pillar Point and below Montara Mountains Comment
  JEPS100605  Fritillaria biflora var. ineziana Dean W. Taylor 1995-3-14 14763 San Mateo W of Hillsborough (Buri Buri Ridge; W of Skyline Blvd.; San Francisco Fish and Game Refuge, San Francisco Water Department lands) 152 Comment
  SEINET3886766  Fritillaria lanceolata Lois R. O'Brien 1963-3-9 85 San Mateo San Bruno Mountains, on Radio Road 3 miles from Estrada Way.; 0 213 Comment
  CAS-BOT-BC130381  Fritillaria liliacea H. E. Parks; S. T. Parks 1930-3-10 0400 San Mateo Spring Valley Lakes 152 Comment
  LA22137  Fritillaria liliacea H. E. Parks; S. T. Parks 1930-3-10 400 San Mateo Spring Valley Lakes 152 Comment
  RSA13540  Fritillaria liliacea H. E. Parks, S. T. Parks 1930-3-10 400 San Mateo Spring Valley Lakes Comment
  RSA289961  Fritillaria liliacea I. Smith 1915-3-15 s.n. San Mateo Hillsboro Comment
  SDSU20659  Fritillaria liliacea Sean Ryan 2011-3-18 76 San Mateo 65 yds S of Point Reyes-Petaluma Rd. approx. 0.66 mi W of its intersection with Nicasio Valley Rd. Nicasio Reservoir. 65 Comment
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Sep 10 2014
  UC843895  Fritillaria liliacea Lewis S. Rose 1941-3-7 41008 San Mateo w of Redwood City (Emerald Lake); Emerald Lake 152 Comment
  RSA0031337  Fumaria Peter Rubtzoff, B. Anderson 1988-4-12 9900 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; NW part of the area, near the old Guadalupe Road between Bog Trail and Saddle Trail Junctions. Comment
  CAS-BOT-BC422449  Fumaria capreolata Philip Morgan 1985-5-1 s.n. San Mateo Growing at the base of Montara Mountain. Comment
  CAS-BOT-BC258909  Galium Peter Rubtzoff 1988-6-25 9928 San Mateo Menlo Park, on Willow Road near Alma Street. Comment
  RSA130682  Galium aparine James I. McMurphy 1906-5-8 s.n. San Mateo Near head of Crystal Springs Lakes Comment
  UCSC007756  Galium aparine Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CDA9440  Galium californicum D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  UCR123146  Galium californicum subsp. californicum George K. Helmkamp, E. A. Helmkamp 2001-6-2 6778 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
  POM284029  Galium californicum subsp. californicum Delzie Demaree 1933-6-23 10379 San Mateo White House Creek. Comment
  JEPS21692  Galium murale R. S. Ferris, W. R. Ernst and John H. Thomas 1958-5-10 7138 San Mateo about 5 mi sw Palo Alto; Jasper Ridge 152 Comment
  JROH3801  Galium murale John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA195643  Galium nuttallii John H. Thomas 1950-3-19 1301 San Mateo Near intersection of Coast Hwy and road to Swanton, 1 mile SE of mouth of Waddell Creek. 30 Comment
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Aug 8 2020
  UC1143094  Galium porrigens var. porrigens H. S. Yates 1935-2-3 509 San Mateo 1/2 mi se Pigeon Pt.; Santa Cruz Quadrangle Comment
  RSA502332  Galium trifidum var. pacificum D. W. Taylor 1987-8-20 9310 San Mateo Cascade Ranch state park area, between Whitehorse Creek and Cascade Creek. Comment
  JROH3820  Galium triflorum Toni Corelli 2004-4-22 274 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 1 just past the first redwood grove 79 Comment
  CAS-BOT-BC303463  Gamochaeta ustulata John H. Thomas 1961-5-12 9325 San Mateo San Bruno Mt in N part of county 396 Comment
  UC1536872  Gamochaeta ustulata G. H. True Jr. 1936-5-14 502 San Mateo canyon s of Salada Beach 365 Comment
  UCR240616  Gamochaeta ustulata T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3516 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-BC303471  Gamochaeta ustulata Margaret A. Barry 1937-5-15 141 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC194564  Garrya elliptica Margaret A. Barry 1938-1-23 222 San Mateo Northeast side of Coal Mine Ridge Comment
  CAS-BOT-BC278666  Gastridium phleoides C. F. Leitholt 1894-7-30 s.n. San Mateo Santa Cruz Mountain Peninsula. La Honda Comment
  JROH5185  Gastridium phleoides John H. Thomas 1973-6-10 16809 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5195  Gastridium phleoides John Hunter Thomas 1984-5-2 23327 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM226889  Gaura sinuata L. R. Abrams 1935-06 13687 San Mateo Field near junction of Los Troncos and San Francisquito creeks Comment
  JROH2015  Genista monspessulana John Hunter Thomas 1985-5-7 23640 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bridge Comment
  UCSB11484  Genista monspessulana Olson, Jim 1962-4-15 San Mateo 1 mile south of La Honda on Skyline Boulevard 670 Comment
  POM65904  Gilia achilleifolia C. F. Baker 1902-4-6 467 San Mateo Crystal Springs Lake. Comment
  POM282276  Gilia achilleifolia subsp. multicaulis Lyman Benson 1935-5-5 6532 San Mateo Lake Searsville. 152 Comment
  UC75487  Gilia clivorum C. F. Baker Apr 1903 1930 San Mateo Crystal Springs Lake Comment
  RSA17964  Gnaphalium beneolens C. B. Wolf 1927-8-13 715 San Mateo Woodside Comment
  RSA218036  Gnaphalium chilense Walter Knight, I. Knight 1963-8-5 s.n. San Mateo Radio Road, San Bruno Mountain Comment
  RSA91707  Gnaphalium luteoalbum J. T. Howell 1935-1-13 12578 San Mateo Lake San Andreas. Comment
  POM359110  Grindelia D. D. Keck 1932-5-25 1783 San Mateo Hills two miles W of Belmont Comment
  CAS-BOT-BC304514  Grindelia hirsutula J. H. Thomas 1954-5-28 4233 San Mateo Along Bayshore Highway about 2 mi. south of San Francisco Airport Comment
  CAS-BOT-BC304533  Grindelia hirsutula Lewis S. Rose 1933-7-21 33306 San Mateo Montara Comment
  CAS-BOT-BC304546  Grindelia hirsutula Peter H. Raven 1957-9-1 11297 San Mateo State Highway 1 at junction of Tunitas Creek Comment
  CAS-BOT-BC304564  Grindelia hirsutula H. L. Mason 1921-7-3 s.n. San Mateo Pescadero - La Honda Road Comment
  POM190261  Grindelia hirsutula D. D. Keck 1932-5-25 1783 San Mateo Hills two miles W of Belmont Comment
  POM57689  Grindelia hirsutula C. F. Baker 1903-4-8 s.n. San Mateo San Andreas Lake Comment
  POM57690  Grindelia hirsutula C. F. Baker 1902-5-1 687 San Mateo Crystal Springs Lake. Comment
  SEINET3139960  Grindelia hirsutula M. P. Dunford 1959-10-3 549 San Mateo Crystal Springs Lake, 1/4 mi N of jct of Hwy 5 (Skyline Blvd) & Ralston Avenue Comment
  POM209880  Grindelia stricta var. platyphylla D. D. Keck 1934-7-7 2943 San Mateo Pigeon Point. Comment
  SD88348  Grindelia stricta var. platyphylla Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of Half Moon Bay Comment
  UCSC006056  Grindelia stricta var. platyphylla Randall Morgan 1999-7-12 3587 San Mateo 1+ mile north of Bean Hollow State Beach Comment
  JROH832  Helenium puberulum John H. Thomas 1968-4-19 14293 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH835  Helenium puberulum John H. Thomas 1974-6-27 17449 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing, below Searsville Dam Comment
  UCR254882  Helenium puberulum Peter Rubtzoff 1976-6-30 8710 San Mateo Central Coast, San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  CAS-BOT-BC309526  Helenium puberulum Elizabeth McClintock; Paul Reeberg 1989-4-23 s.n. San Mateo San Bruno Mountains. Colma Creek 121 Comment
  CAS-BOT-BC309544  Helenium puberulum A. D. E. Elmer 1903-7-1 4968 San Mateo Near intersection of Canada and Edgewood Roads, about 3 mi westward from Redwood City. Comment
  CAS-BOT-BC305339  Helianthella castanea Elizabeth McClintock; Phillip C. Wheeler 1967-5-14 s.n. San Mateo San Bruno Mountain. East side of mountain, above Harold Ave., Brisbane. Near fence separating Brisbane from Crocker Estate portion of mountain Comment
  CAS-BOT-BC305630  Helianthus californicus L. R. Abrams 1902-9-21 2989 San Mateo Woodside - Crystal Springs Comment
  CAS-BOT-BC314912  Hemizonia congesta subsp. luzulifolia Ned Cahill 1974-7-14 360 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi. westward from Redwood City 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-BC314922  Hemizonia congesta subsp. luzulifolia A. D. E. Elmer 1903-6-1 4443 San Mateo Crystal Springs Lake Comment
  CDA7038  Hemizonia congesta subsp. luzulifolia A. C. Browne 1950-8-12 San Mateo Portola. 0 Comment
  JEPS121452  Hemizonia congesta subsp. luzulifolia Adam C. Schneider 2013-5-17 145 San Mateo Comment
  SBBG39532  Hemizonia congesta subsp. luzulifolia L. S. Rose 1970-7-26 San Mateo Hillsborough, Black Mtn, Skyline Blvd 121 Comment
  UC193426  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-14 10232 San Mateo Hills west of Milbrae, near summit of road from Milbrae west to the lakes Comment
  POM299466  Hemizonia corymbosa subsp. corymbosa L. S. Rose 1941-8-9 41361 San Mateo Moss Beach. 16 Comment
  RSA133899  Hemizonia corymbosa subsp. corymbosa John H. Thomas 1959-8-16 8067 San Mateo About 2 miles N of Pigeon Point along the coast. 15 Comment
  POM284876  Hemizonia corymbosa subsp. corymbosa Lyman Benson 1934-7-4 6102 San Mateo Moss Beach; Pacific Ocean watershed 15 Comment
  POM287748  Heracleum maximum Lyman Benson 1931-4-13 2710 San Mateo Behind Stanford University, bottom land at junction with Corte Madera Creek Comment
  JROH893  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1981-5-25 20643 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH898  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1987-5-5 24253 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB24049  Hesperocyparis abramsiana Dutton, H. 1949-9-19 San Mateo Common corners of sections 11 & 12 and 13 & 14 Range 4 West, on the north bank of the North Fork of Butano Creek Comment
  CAS-BOT-BC176208  Hesperolinon congestum A. D. E. Elmer 1903-5-1 4422 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC176214  Hesperolinon congestum Hester R. Davis 1920-6-1 179 San Mateo Back of Redwood City Comment
  RSA112350  Hesperolinon congestum L. R. Abrams 1910-5-7 s.n. San Mateo Crystal Springs Lake. Comment
  UC1187062  Hesperolinon congestum David D. Keck 1940-5-15 5035 San Mateo e side Upper Crystal Springs Lake 100 Comment
  JROH2930  Hesperolinon micranthum John H. Thomas 1975-5-26 17899 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2939  Hesperolinon micranthum John Hunter Thomas 1992-5-25 25342 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC148468  Heteromeles arbutifolia Margaret A. Barry 1937-6-24 179 San Mateo Exposed slopes on Coal Mine Ridge Comment
  SD37681  Heteromeles arbutifolia Edith A. Purer 1932-7-18 4002 San Mateo King's Mountain Comment
  CAS-BOT-BC310762  Heterotheca sessiliflora subsp. echioides E. A. McGregor 1906-9-23 s.n. San Mateo Corte de Madera 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
  JEPS27369  Heuchera micrantha Rimo Bacigalupi with J. Roof and L. Heckard 1961-4-24 7629 San Mateo below and se of end of paved ridge-top road just e of KRON television tower and station San Bruno Mt summit (Guadalupe Valley side of); San Bruno Mt 304 Comment
  CAS-BOT-BC420894  Heuchera micrantha var. diversifolia Margaret A. Barry 1938-5-29 262 San Mateo Corte Madera Creek near Coal Mine Ridge Comment
  RSA0063142  Heuchera micrantha var. hartwegii D. D. Keck 1932-6-1 1794 San Mateo Above Woodside on La Honda Rd. E slope of Santa Cruz Mtns. Comment
  CAS-BOT-BC424430  Heuchera pilosissima H. L. Mason 1921-6-2 s.n. San Mateo Hill near Pebble Beach, Pescadero Comment
  CAS-BOT-BC319634  Hieracium albiflorum David D. Keck 1934-7-7 2927 San Mateo Kings Mountain 548 Comment
  RSA18499  Hieracium albiflorum C. B. Wolf 1927-7-14 621 San Mateo 1 mile south of summit of Kings Mt on Skyline Drive. Comment
  SBBG44978  Hieracium albiflorum C. B. Wolf 1927-7-14 619 San Mateo summit of Kings Mtn Rd Comment
  UC75024  Hierochloe occidentalis C. F. Baker 1902-1-15 247 San Mateo w side of mountain King's Mountain Comment
  CAS-BOT-BC55433  Hirschfeldia incana Ira L. Wiggins 1975-8-5 22174 San Mateo Bed of San Francisquito Creek, ca. 100 m above Pope Street bridge, both sides of Santa Clara--San Mateo line. Comment
  CAS-BOT-BC55435  Hirschfeldia incana Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountains. Lower part of Colma Canyon. Comment
  RSA134378  Hoita orbicularis L. S. Rose 1959-6-24 59031 San Mateo San Mateo, Black Mtn. Rd. near Skyline Blvd. 122 Comment
  SEINET7930198  Hoita orbicularis Lewis S. Rose 1959-6-24 59031 San Mateo San Mateo, Black Mtn Rd near Skyline Blvd.; 0 122 Comment
  CAS-BOT-BC289252  Holcus lanatus Walter Knight; Irja Knight; Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo Lower Part of Colma Canyon, San Bruno Mountain Comment
  CAS-BOT-BC289253  Holcus lanatus Philip Wheeler 1965-6-8 s.n. San Mateo Crocker Industrial Park, San Bruno Mountain Comment
  JROH5216  Holcus lanatus John Hunter Thomas 1988-6-2 24501 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near old bridge. Comment
  JROH5217  Holcus lanatus John Hunter Thomas 1989-5-30 24756 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR141417  Holcus lanatus 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
  CAS-BOT-BC389678  Holodiscus discolor Mary Wicksten 1968-7-19 s.n. San Mateo Creek trail near Sequoia Flat Road - Memorial Park Comment
  RSA101035  Holodiscus discolor G. Oberlander 1949-5-21 183 San Mateo Sawyer Ridge, San Francisco Watershed Reserve. Comment
  RSA262239  Holodiscus discolor John H. Thomas 1971-5-30 15982 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  UC1127995  Holodiscus discolor G. E. Sindel 1935-7-23 297 San Mateo 3/4 mi e of Jones Gulch 274 Comment
  UCR122982  Holodiscus discolor George K. Helmkamp, E. A. Helmkamp 2001-6-2 6781 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
  CAS-BOT-BC150059  Holodiscus discolor var. discolor Robert Robertson 1954-5-1 110 San Mateo By road 2 miles east of Pescadero 30 Comment
  POM205104  Hordeum brachyantherum E. B. Copeland 1903-6-10 3304 San Mateo Montara Point. Comment
  RSA149153  Hordeum brachyantherum John H. Thomas 1961-5-13 9341 San Mateo Coastal sand dunes at Franklin Point. Comment
  RSA60658  Hordeum brachyantherum I. L. Wiggins 1950-5-20 12352 A San Mateo Pescadero Beach Comment
  RSA6305  Hordeum brachyantherum D. D. Keck 1965-5-6 1465 San Mateo Belmont Comment
  UCD85414  Hordeum brachyantherum Lewis S. Rose 1963-4-27 63001 San Mateo Skyline Blvd. West of San Mateo. 91 Comment
  CAS-BOT-BC284676  Hordeum brachyantherum subsp. brachyantherum Peter H. Raven 1950-6-3 2214 San Mateo Along Millbrae Ave., Millbrae 60 Comment
  CAS-BOT-BC284681  Hordeum brachyantherum subsp. brachyantherum A. D. E. Elmer 1903-6-1 4851 San Mateo Crystal Springs Lake Comment
  SEINET10826894  Hordeum brachyantherum subsp. brachyantherum Adolph D. E. Elmer Elmer 4851 San Mateo Crystal Springs Lake. Comment
  JEPS128401  Hordeum brachyantherum subsp. californicum Adam C. Schneider 2013-5-17 133 San Mateo Crystal Springs Reservoir. Comment
  JROH5221  Hordeum brachyantherum subsp. californicum John H. Thomas 1973-6-10 16820 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC285146  Hordeum marinum subsp. gussoneanum Elizabeth McClintock; Paul Reeberg 1989-4-10 s.n. San Mateo San Bruno Mountains. PG&E Marsh 7 Comment
  JROH5251  Hordeum marinum subsp. gussoneanum John Hunter Thomas 1992-5-14 25227 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10859740  Hordeum marinum subsp. gussoneanum Delzie Demaree 1932-5-16 Demaree 9139 San Mateo Spring valley lakes. Comment
  CAS-BOT-BC289392  Hordeum murinum subsp. glaucum Paul Arnaud 1941-4-6 s.n. San Mateo Redwood City 731 Comment
  CAS-BOT-BC289393  Hordeum murinum subsp. glaucum H. A. Dutton 1900-4-19 s.n. San Mateo Woodside, Santa Cruz Peninsula Comment
  JROH5671  Hordeum murinum subsp. leporinum John Rawlings 2013-4-10 1129 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Where the brick path ends at the visitor parking lot of the Sun Field Station. 119 Comment
  CAS-BOT-BC271360  Hordeum vulgare Arthur Chan 1981-5-8 070 San Mateo South San Francisco, 1050 Old Mission Road in a vacant lot to the rear of the parking lot Comment
  CAS-BOT-BC536139  Horkelia californica J. H. Thomas 1954-6-11 4273 San Mateo 0.8 mile north of Pescadero Creek 60 Comment
  JEPS34468  Horkelia californica L. R. Heckard and R. Bacigalupi 1963-7-2 1357 San Mateo Trail to Montara Peak (NW slope) above old county road 304 Comment
  RSA498673  Horkelia californica E. A. Purer 1933-7-27 5341 San Mateo 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
  CAS-BOT-BC536150  Horkelia californica Alice Eastwood 1915-6-13 4711 San Mateo Granada Comment
  POM250804  Horkelia californica D. D. Keck 1939-7-1 5008 San Mateo 3 miles S of Pescadero, 1 mile from the ocean. 61 Comment
  UCD113402  Horkelia californica Lewis S. Rose 1966-8-20 66086 San Mateo San Bruno Mountain, head of Colma Canyon. 205 Comment
  CAS-BOT-BC143921  Horkelia cuneata var. sericea Phillip C. Wheeler 1965-5-11 s.n. San Mateo Pig Ranch Ravine Comment
  UCD77838  Hosackia stipularis Robert E. Preston 2001-6-1 1538 San Mateo Ca. 7 mi nw of Boulder Creek. 658 Comment
  CDA5496  Hydrocotyle sibthorpioides T. C. Fuller 1970-5-12 19531 San Mateo Emily Brown property, 3045 Ralston Avenue, Burlingame. 0 Comment
  CAS-BOT-BC400965  Hypericum anagalloides Elizabeth McClintock; Philip Wheeler 1967-6-11 s.n. San Mateo San Bruno Mountains. North facing slope to south of new Guadalupe Parkway just before it meets Radio Road Comment
  RSA739721  Hypericum canariense John Dittes, Josephine Guardino 2007-6-30 1457 San Mateo Undesignated section of Punta Del Ano Nuevo Lant Grant, Central Coast, Ano Nuevo State Reserve, coastal terrace 2.4 air mile SE of Pidgeon Point Lighthouse, E side of Hwy 1 on slope S and E of Gazos Creek. 21 Comment
  UCD133374  Hypochaeris glabra J. Skoss 1948-8-22 111 -A San Mateo San Vincente Canyon, near Montara. Comment
  UCSC007758  Hypochaeris glabra Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH932  Hypochaeris radicata John Hunter Thomas 1981-7-24 20733 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET11259798 Image available Hypochaeris radicata K. Thorne, J. Chandler 1986-7-25 4918 San Mateo Half Moon Bay, 2 miles south of Moss Beach at Dune Beach. Comment
  UC1598591  Hypochaeris radicata A. D. E. Elmer 1903-4-1 4861 San Mateo Lake San Andreas Comment
  CAS-BOT-BC311484  Hypochaeris radicata George Oberlander 1949-4-17 55 San Mateo San Francisco Watershed Reserve. On top of Sawyer Ridge Comment
  JROH935  Hypochaeris radicata John Hunter Thomas 1983-7-7 22821 San Mateo Jasper Ridge Biological Preserve, Stanford University 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-BC133658  Iris longipetala L. R. Abrams 1919-3-20 s.n. San Mateo South San Francisco Comment
  CAS-BOT-BC133665  Iris longipetala Alice Eastwood; John Thomas Howell 1937-5-7 4325 San Mateo Hills south of Visitacion Valley Comment
  CAS-BOT-BC133670  Iris longipetala Walter Knight; Irja Knight 1964-1-15 508 San Mateo South slope, Colma Canyon Comment
  SEINET5555919  Iris longipetala H. S. Gentry 1931-1 60 San Mateo Collected 2 miles W of San Bruno. Comment
  UC143465  Iris longipetala C. F. Baker 1902-3-22 348 San Mateo South San Francisco Comment
  JROH4431  Iris pseudacorus John R. Barth 1963-4-13 4 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake 103 Comment
  RSA116773  Isoetes howellii W. R. Dudley 1906-7-28 s.n. San Mateo Coal Mine Ridge, Black Mtn. Comment
  CAS-BOT-BC112606  Isolepis cernua Guy Thomas Robbins 1958-9-1 3934 San Mateo At edge of Cordonices Creek near its mouth, just E of the Eastshore Freeway Comment
  CAS-BOT-BC112630  Isolepis cernua Elizabeth McClintock; P. Reeberg 1989-5-2 s.n. San Mateo In lower Owl Canyon 45 Comment
  SEINET4170785 Image available Isolepis cernua Malcolm A. Nobs, S. Galen Smith 1949-8-15 1565 San Mateo Marshes at sharp Park Comment
  CAS-BOT-BC340136  Jaumea carnosa LeRoy Abrams 1901-9-1 2224 San Mateo Cooley's Landing Comment
  SBBG28003  Jaumea carnosa L. S. Rose 1935-8-13 San Mateo Salada Comment
  SJSU4270  Jaumea carnosa D. R. Conradson 1968-10-9 San Mateo by Palo Alto Yacht Harbor Comment
  UC672619  Juglans californica var. hindsii Herbert L. Mason 1924-10-8 1107 San Mateo along creek at n end Jasper Ridge (2 1/2 mi w of Palo Alto); San Francisquito Creek Comment
Read comments
Sep 19 2011
  CAS-BOT-BC109971  Juncus James McMurphy 1909-10-17 s.n. San Mateo San Gregorio. Lagoon. Comment
  UCR121569  Juncus bufonius George K. Helmkamp, E. A. Helmkamp 1999-6-28 4997 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  RSA17947  Juncus bufonius var. bufonius Carl B. Wolf, Le Roy Abrams 1927-6-4 s.n. San Mateo Pescadero. Comment
  JROH4461  Juncus bufonius var. occidentalis John H. Thomas 1967-5-12 12888 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5596  Juncus effusus subsp. pacificus John Rawlings 2014-2-4 1206 San Mateo Jasper Ridge Biological Preserve, Stanford University; ecotone between dominant Salix exigua on sandy lake shore and Typha angustifolia in drying Searsville lake bed, 50 m south of the boat landing and lab. 104 Comment
  CAS-BOT-BC227613  Juncus effusus subsp. pacificus Peter Rubtzoff; Elizabeth McClintock; Paul Reeberg 1989-6-3 s.n. San Mateo San Bruno Mountains. PG&E Marsh 15 Comment
  RSA786664  Juncus effusus var. pacificus Peter Rubtzoff, Roman Gankin 1975-9-11 8373 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  UCD164600  Juncus hesperius Peter Rubtzoff; Roman Gankin 1975-9-11 8372 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  UC1601735  Juncus lescurii J. Burtt Davy 1893-6-22 758 San Mateo head of Lake Pilarcitos Lake Pilarcitos Comment
  JROH4491  Juncus occidentalis John Hunter Thomas 1985-5-21 23666 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4502  Juncus patens John Hunter Thomas 1981-7-12 20687 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC227612  Juncus patens Peter Rubtzoff; Elizabeth McClintock; Paul Reeberg 1989-6-3 s.n. San Mateo San Bruno Mountains. Shearwater 22 Comment
  SD260865  Juncus phaeocephalus Peter Rubtzoff 1976-6-30 8706 San Mateo Central Coast: San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; westernmost part of the area on slope across fence. Dirt roadside near a marsh. 182 Comment
  JROH4503  Juncus phaeocephalus var. paniculatus Toni Corelli, John Rawlings 2007-9-26 0341 San Mateo Jasper Ridge Biological Preserve, Stanford University. Seasonally wet area east of Trail 10. 178 Comment
  JROH4504  Juncus phaeocephalus var. paniculatus John Rawlings 2010-5-19 1058 San Mateo Jasper Ridge Biological Preserve, Stanford University. West edge of California semaphore grass vernal depression. 122 Comment
  UCD18534  Juncus xiphioides Roman Gankin 1950-6-25 1 San Mateo about 2 miles from Alameda de Las Puigas Rd., behind Stanford University, off Sandhill Rd. 152 Comment
  JROH4040  Kickxia spuria Herbert Dengler 1958-9-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; N.E. Nolan Ridge (the ridge N.E. of Corte Madera Cr.) by trail Comment
  JROH4049  Kickxia spuria John Hunter Thomas 1982-11-8 21257 A San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  JROH5272  Koeleria macrantha W. Lennihan 1990-5-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Escobar cutoff (Trail 15), left side of trail past exclosure. Comment
  CAS-BOT-BC273737  Koeleria pyramidata David D. Keck 1932-5-6 1476 San Mateo Above Millbrae Highlands Comment
  JROH944  Lactuca saligna John H. Thomas 1959-8-22 8074 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM290111  Lactuca saligna Lyman Benson 1932-8-15 4050 San Mateo Menlo Park. 30 Comment
  CAS-BOT-BC340468  Lactuca saligna John Thomas Howell 1930-11-9 5711 San Mateo On the Skyline Boulevard in the hills above Millbrae Comment
  CAS-BOT-BC340702  Lactuca virosa John Thomas Howell 1954-9-8 30108 San Mateo Skyline Blvd. at San Andreas Lake, 2 miles west of San Bruno Comment
  CAS-BOT-BC340703  Lactuca virosa John Thomas Howell 1954-9-8 30108 San Mateo Skyline Blvd. at San Andreas Lake, 2 miles west of San Bruno Comment
  UCD133509  Lactuca virosa John Thomas Howell 1954-9-8 30108 San Mateo Skyline Blvd. at San Andreas Lake, 2 miles west of San Bruno. Comment
  JROH961  Lagophylla ramosissima John H. Thomas 1969-5-28 15087 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2781  Lamium amplexicaule John Hunter Thomas 1991-4-6 24973 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UCSC005963  Lasthenia Randall Morgan 1995-6-6 2729 San Mateo Common at N part of Bean Hollow State Beach Comment
  CAS-BOT-BC339066  Lasthenia californica John Thomas Howell 1933-5-3 11204 San Mateo San Bruno Hills Comment
  CAS-BOT-BC339093  Lasthenia californica Donald A. Johansen 1932-5-21 686 San Mateo Pigeon Point, west of Pescadero Comment
  CAS-BOT-BC339051  Lasthenia californica Alex Briggs 1922-5-27 s.n. San Mateo Mirimar [Miramar] Comment
  CAS-BOT-BC339082  Lasthenia californica W. R. Dudley 1894-5-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside to Crystal Springs Reservoir Comment
  CAS-BOT-BC339083  Lasthenia californica W. R. Dudley 1893-5-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Millbrae Comment
  CAS-BOT-BC339092  Lasthenia californica David D. Keck 1933-5-11 2296 San Mateo Montara Light House and Radio Station Comment
  JEPS10183  Lasthenia californica subsp. californica W. L. Jepson 1919-4-19 8230 San Mateo San Bruno Hills Comment
  SJSU15209  Lasthenia californica subsp. californica Teri Barry 2010-4-23 San Mateo Jasper Ridge Biological Preserve southeast of Trail 9 near the intersection of Road F and Trail 9. 186 Comment
  UC762042  Lasthenia californica subsp. californica R. F. Hoover 1939-4-21 4055 San Mateo 2 mi s of Colma Comment
  CAS-BOT-BC355496  Lasthenia glaberrima R. Bacigalupi 1923-4-16 s.n. San Mateo Field near San Francisquito Creek near Stanford University Comment
  JEPS24276  Lasthenia glabrata subsp. glabrata J. H. Thomas 1954-4-2 3793 San Mateo 1.5 mi e of center Redwood City Comment
  CAS-BOT-BC355546  Lasthenia glabrata var. glabrata A. D. E. Elmer 1903-5-1 4426 San Mateo Millbrae Comment
  UC311550  Lasthenia gracilis A. D. E. Elmer 1903-4-1 4507 San Mateo San Bruno Hills Comment
  SEINET2053255  Lasthenia minor C. W. Sharsmith 1947-3-13 6745 San Mateo Pescadero Beach near Pescadero Point. Comment
  UCR121579  Lasthenia minor George K. Helmkamp, E. A. Helmkamp 1999-6-28 5013 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  SEINET12153854  Lathyrus jepsonii Unknown 1933-1 70 San Mateo Alpine Rd Comment
  RSA176745  Lathyrus latifolius John H. Thomas 1962-7-15 9924 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JEPS22021  Lathyrus littoralis G. Thomas Robbins with S. Galen Smith 1958-6-9 3859 San Mateo 0.5 mi n bridge crossing Pescadero Creek (about 0.25 mi w of State Highway 1) Comment
  UC201111  Lathyrus littoralis Katharine Brandegee 1918-7-4 San Mateo Salida Beach Comment
  SEINET12153905  Lathyrus littoralis M. T. Doutt 1931-1 244 San Mateo S of San Francisco, nr Salada Comment
  SEINET956312  Lathyrus vestitus Ira L. Wiggins 1925-1 1661 San Mateo On King Mountain Road three fourths of a mile above Woodside in the old cut over redwood. Comment
  POM19359  Lathyrus vestitus subsp. vestitus C. F. Baker 652 San Mateo Kings Mountain. Comment
  POM19350  Lathyrus vestitus subsp. vestitus C. F. Baker 1902-5-10 8256 San Mateo Summit of Coast Range. Comment
  JROH2031  Lathyrus vestitus var. vestitus John H. Thomas 1973-4-14 16570 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR70763  Layia chrysanthemoides Donald A. Johansen 1933-5-27 803 San Mateo San Francisco Bay Region, along Skyline Blvd. at junction of side road leading to Burlingame 193 Comment
  CAS-BOT-BC323155  Layia chrysanthemoides David D. Keck 1932-5-6 1488 San Mateo 4 miles W of Burlingame on Skyline Boulevard. Comment
  UC34543  Layia gaillardioides unknown 1888-4-12 San Mateo San Pedro Ranch Comment
  CAS-BOT-BC321091  Layia gaillardioides Kellogg; Brannan 1890-5-31 s.n. San Mateo Redwoods 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-BC327461  Layia hieracioides Fred Hemphill 1973-4-22 729 San Mateo San Carlos. Chaparral area N of Malabar Rd and Melendy Dr. 207 Comment
  CAS-BOT-BC327484  Layia hieracioides Lewis S. Rose 1936-5-28 36309 San Mateo Emerald Lake, W of Redwood City 91 Comment
  UC913102  Layia hieracioides David D. Keck and Wm. M. Hiesey 1940-6-1 5166 San Mateo opposite n end of Lake San Andreas; Skyline Boulevard 135 Comment
  CAS-BOT-BC327456  Layia hieracioides David D. Keck 1933-5-11 2306 San Mateo Skyline Boulevard, east of Salada, northern San Mateo County. Comment
  CAS-BOT-BC327526  Layia hieracioides C. G. Pringle 1882-7-11 s.n. San Mateo Aptos Comment
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Oct 28 2021
  UC468859  Layia hieracioides Katharine Brandegee 1908-5-1 San Mateo San Bruno Hills Comment
  CAS-BOT-BC382089  Layia platyglossa A. D. E. Elmer 1903-4-1 5022 San Mateo Crystal Springs Lake Comment
  JEPS127807  Layia platyglossa Adam C. Schneider with C. Matt Guilliams 2013-4-7 69 San Mateo Along dirt road running parallel to overhead power lines. GPS coordinates approximate. Comment
  JROH993  Layia platyglossa John H. Thomas 1966-4-12 11564 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-BC382090  Layia platyglossa Elizabeth McClintock 1978-3-25 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  CAS-BOT-BC382215  Layia platyglossa David D. Keck 1933-5-11 2305 San Mateo Skyline Blvd., east of Salada, northern San Mateo County Comment
  SEINET10846229  Layia platyglossa John T. Middleton 1937-4-10 Middleton 83 c San Mateo San Mateo Co., Ca. Comment
  POM190415  Layia platyglossa subsp. campestris D. D. Keck 1932-6-18 1980 San Mateo Skyline Boulevard, at Langley Hill (SW of Stanford University) 610 Comment
  CAS-BOT-BC527274  Lemna minuta Roxana S. Ferris 1920-10-1 2100 San Mateo 1st mud lake, Coal Mine Ridge, Santa Cruz Mountain Peninsula Comment
  RSA18088  Lemna minuta Carl B. Wolf 1929-4-29 3660 San Mateo 10 miles south of San Francisco, Skyline Drive Comment
  CAS-BOT-BC221532  Lepechinia calycina Lewis S. Rose 1933-6-9 33225 San Mateo Belmont Comment
  CAS-BOT-BC221533  Lepechinia calycina Lewis S. Rose 1937-5-23 37320 San Mateo Belmont 91 Comment
  RSA218029  Lepechinia calycina Walter Knight, I. Knight 1964-5-19 s.n. San Mateo Crocker Hills, San Bruno Mountain. Comment
  UCD23295  Lepechinia calycina Alan T. Whittemore 1976-5-29 115 San Mateo San Francisco Fish and Game Refuge. East side of Lower Crystal Springs Lake, on Sawyer's Camp Road. 94 Comment
  RSA176593  Lepidium didymum John H. Thomas 1961-8-27 9686 San Mateo Colma; open sandy field near intersection of El Camino Real and F Street 46 Comment
  CAS-BOT-BC89217  Lepidium draba Phillip C. Wheeler 1967-5-7 s.n. San Mateo San Bruno Mountains. Crocker Hills, near old Bayshore Highway. Comment
  RSA285070  Lepidium latifolium J. T. Howell 1978-7-18 53189 San Mateo Airport Sheraton, Airport Blvd., Burlingame. Comment
  JROH1538  Lepidium nitidum E. A. McGregor 1907-2-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1541  Lepidium nitidum John H. Thomas 1956-4-7 5618 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1550  Lepidium nitidum John Hunter Thomas 1982-1-3 20793 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC10674  Lepidium nitidum Mrs. Brandegee 1892-4-9 San Mateo South San Francisco Comment
  CAS-BOT-BC12597  Lepidium nitidum Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountains. Above Hillside Boulevard, South San Francisco. Comment
  CAS-BOT-BC12950  Lepidium strictum Walter Knight; Irja Knight 1965-5-16 1201 San Mateo San Bruno Mountains. Crocker Avenue. Comment
  CDA32442  Leptochloa fascicularis I. J. Campbell 1959-12-14 San Mateo San Miguel 0 Comment
  JROH5273  Leptochloa fusca subsp. fascicularis Ann Lambrecht 2006-8-23 33 San Mateo Jasper Ridge Biological Preserve, Stanford University; dry streambed of San Francisquito Creek 71 Comment
  JROH5274  Leptochloa fusca subsp. uninervia W. Lennihan 1980-11-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta in Searsville Lake (formed by Corte Madera Creek). Comment
  CAS-BOT-BC226608  Leptosiphon ambiguus Arthur Spiegler 1952-4-26 27 San Mateo 4 miles from Woodside on Canada Road to Skyline Boulevard Comment
  JROH3176  Leptosiphon androsaceus John Hunter Thomas 1986-5-17 24055 San Mateo Jasper Ridge Biological Preserve, Stanford University; creek trail downstream from Rattlesnake Rock Comment
  JROH3177  Leptosiphon androsaceus Toni Corelli 2003-6-23 263 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 1 83 Comment
  POM65224  Leptosiphon androsaceus C. F. Baker 1902-4-6 469 San Mateo Crystal Springs Lake. Comment
  RSA18460  Leptosiphon androsaceus C. B. Wolf 1927-6-29 547 -A San Mateo Along coast south of Pebble Beach near Pescadero. Comment
  JROH3180  Leptosiphon bicolor Carol Zabel 1989-5-8 16 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11 just before intersection with Trail 10 Comment
  CAS-BOT-BC226624  Leptosiphon grandiflorus W. R. Dudley 1896-7-30 s.n. San Mateo Summit of hill just beyond La Honda Comment
  CAS-BOT-BC226729  Leptosiphon latisectus D. D. Davis 1903-4-1 s.n. San Mateo Searsville Ridge Comment
  CAS-BOT-BC300525  Leptosiphon liniflorus R. K. Wellman 1981-5-14 027 San Mateo Sawyer Camp Rd. in Hillborough [Hillsborough] city limits. 1/2 mi in from rd. start 15 Comment
  POM65529  Leptosiphon liniflorus A. D. E. Elmer 1903-06 4704 San Mateo Crystal Springs Lake, southern end. Comment
  RSA187442  Leptosiphon liniflorus James I. McMurphy 1906-5-8 s.n. San Mateo Near head of Crystal Lake Comment
  JROH3189  Leptosiphon parviflorus John H. Thomas 1961-4-8 9077 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3190  Leptosiphon parviflorus John H. Thomas 1966-4-6 11551 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5570  Leptosiphon pygmaeus subsp. continentalis John Rawlings 2005-6-1 1153 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 11 in chaparral. 144 Comment
  CHSC1270  Leptosiphon rosaceus H. Pearl 1930-5-1 San Mateo Moss Beach. Comment
  CAS-BOT-BC324059  Lessingia arachnoidea Lewis S. Rose 1954-8-29 54111 San Mateo East side of Crystal Springs Lake Comment
  CAS-BOT-BC325500  Lessingia arachnoidea W. Spence 1960-7-2 552 San Mateo 1 mile north of Dam, Route 5, Crystal Springs Lake Comment
  POM289269A  Lessingia arachnoidea Lyman Benson 1934-7-29 6109 San Mateo Crystal Springs Lake; Mt. Range: Santa Cruz; Watershed: S. F. Bay. 152 Comment
  POM55553  Lessingia arachnoidea C. F. Baker 1902-09 s.n. San Mateo Crystal Springs Lake. Comment
  SBBG39542  Lessingia arachnoidea L. S. Rose 1970-7-26 70077 San Mateo Skyline Blvd., Hillsborough, Black Mtn 121 Comment
  RSA0001373  Lessingia bakeri C. F. Baker 1902-10-20 1834 San Mateo Searsville. Comment
  JROH1005  Lessingia glandulifera var. glandulifera L. R. Abrams 1910-8-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  JROH1018  Lessingia glandulifera var. glandulifera John Hunter Thomas 1981-5-19 20608 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA169310  Lessingia hololeuca L. S. Rose 1964-9-5 s.n. San Mateo Emerald Lake, W of Redwood City. 244 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
  JEPS71199  Leymus triticoides William S. Cooper 1919-7-22 214 San Mateo Ano Nuevo Pt. Comment
  JEPS71203  Leymus triticoides William S. Cooper 1925-5-28 6 San Mateo Miramar Comment
  CAS-BOT-BC436532  Ligusticum apiifolium A. D. E. Elmer 1903-6-1 4803 San Mateo San Mateo Comment
  UC306537  Ligusticum apiifolium A. D. E. Elmer July 1903 4966 San Mateo San Mateo Comment
  UC306542  Ligusticum apiifolium A. D. E. Elmer June 1903 4966 San Mateo San Mateo 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-BC130798  Lilium pardalinum Josephine D. Randall 1907-7-28 237 San Mateo Iversons near Peters Creek Comment
  CDA4898  Limnanthes douglasii subsp. ornduffii T. W. Heinrich 2004-4-21 s.n. San Mateo Adjacent to Highway 1 and immediately east of Half Moon Bay Airport, on Cabrillo Ranch property, Moss Beach. 0 Comment
  CDA36279  Limonium binervosum Michael Perlmutter 2011-6-15 San Mateo Foster City; Seal Slough. 0 Comment
  UCD149008  Limonium perezii M. Perlmutter 2011-6-15 s.n. San Mateo Burlingame, Sanchez Marsh. Comment
  UC2046439  Limonium ramosissimum subsp. provinciale Whitney Thornton 2011-8-19 s.n. San Mateo Seal Slough Comment
  JEPS9791  Limosella aquatica Franklin P. Nutting 1893-7-16 San Mateo Lake San Andreas Comment
  UC306700  Linanthus ambiguus A. D. E. Elmer Apr 1903 4913 San Mateo Crystal Springs Lake Comment
  UC52732  Linanthus androsaceus Ivan Tidestrom May 1894 San Mateo San Mateo Comment
  UC202814  Linanthus androsaceus A. D. E. Elmer Apr 1903 4746 San Mateo Comment
  UC727278  Linanthus androsaceus Ira L. Wiggins 1943-4-21 10164 San Mateo 0.25 mi s jct. of hwy. from Pescadero with coastal road to Santa Cruz Comment
  NY336940  Linanthus croceus A. Eastwood 1901-5-19 San Mateo Bleubuin? Comment
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Nov 16 2015
  UC517491  Linanthus liniflorus John Thomas Howell 1933-5-26 11344 San Mateo Crystal Springs Lake Comment
  SEINET12279096  Linanthus liniflorus L. S. Rose 1932-1 32217 San Mateo San Bruno 183 Comment
  JEPS112713  Linanthus parviflorus Dean W. Taylor 1994-5-10 14270 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
  UCR66523  Linanthus parviflorus David D. Keck 1932-5-6 1481 San Mateo Just west of Millbrae Highlands 50 Comment
  CDA6306  Linaria purpurea T. C. Fuller 1968-10-3 17659 San Mateo Christie s Crescent Nursery, Half Moon Bay. 0 Comment
  UC198505  Linum usitatissimum Katharine Brandegee 1917-8-29 San Mateo Moss Beach Comment
  UC762363  Lithocarpus densiflorus R. F. Hoover 1941-2-12 4758 San Mateo above La Honda (La Honda Creek); La Honda Creek Comment
  CAS-BOT-BC36071  Lithocarpus densiflorus var. densiflorus W. R. Dudley 1893-10-1 s.n. San Mateo Bear Gulch, Sierra Morena Comment
  CAS-BOT-BC36072  Lithocarpus densiflorus var. densiflorus Josephine D. Randall 1907-6-29 128 San Mateo Kings Mt. Road Comment
  RSA15201  Lithocarpus densiflorus var. densiflorus Carl B. Wolf 1926-10-19 78 San Mateo La Honda Grade. Santa Cruz Mtns. Comment
  JROH3888  Lithophragma affine John H. Thomas 1972-4-1 16048 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC436225  Lithophragma heterophyllum D. E. Breedlove 1974-5-13 36209 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  POM142569  Lithophragma heterophyllum C. F. Baker 1902-4-6 651 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
  JROH3902  Lithophragma heterophyllum Brenda Butner and Toni Corelli 1990-3-30 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 3 Comment
  CAS-BOT-BC342466  Logfia gallica John H. Thomas 1961-5-7 9265 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH741  Logfia gallica John Hunter Thomas 1982-5-5 20920 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC283231  Lolium multiflorum Fred Hemphill 1973-5-14 810 San Mateo San Carlos, N of Malabar Rd and Melendy Dr 243 Comment
  UCD66070  Lolium multiflorum Lewis S. Rose 1966-5-2 66036 San Mateo Emerald Lake, west of Redwood City. 91 Comment
  UCD66465  Lolium perenne Beecher Crampton 1962-6-11 6496 San Mateo North city limits of Pacifica, State Hwy. 1 just southwest of its junction with Skyline Blvd. Comment
  RSA786667  Lolium perenne subsp. multiflorum Peter Rubtzoff 1976-6-13 8629 San Mateo San Bruno Mountains: 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. In area of uppermost part of East Fork Colma Creek, at the NW corner of Fog Forest. Comment
  CAS-BOT-BC269175  Lolium temulentum W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Baden Comment
  JEPS127851  Lomatium caruifolium var. caruifolium Adam C. Schneider with C. Matt Guilliams 2013-3-9 36 San Mateo Comment
  JEPS89917  Lomatium caruifolium var. caruifolium Dean W. Taylor 1988-3-30 9493 San Mateo n. slope of s.e. ridge near the ridgecrest San Bruno Mt. (right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain); Santa Cruz Mts., San Francisco South 7 1/2 Quad., San Bruno 237 Comment
  UC21264  Lomatium caruifolium var. caruifolium Alice Eastwood April 1896 San Mateo Crystal Springs Comment
  OBI8888  Lomatium dasycarpum Lewis S. Rose 1965-4-22 65027 San Mateo San Bruno Mtn, S of parking lot 366 Comment
  JEPS23880  Lomatium dasycarpum subsp. dasycarpum Le Roy Abrams 1902-5-11 2447 San Mateo Crystal Springs Lake Comment
  JROH270  Lomatium dasycarpum subsp. dasycarpum John Hunter Thomas 1987-4-30 24220 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC306544  Lomatium dasycarpum subsp. dasycarpum A. D. E. Elmer April, 1903 4818 San Mateo Crystal Springs Lake Comment
  JROH274  Lomatium macrocarpum John H. Thomas 1962-5-31 9894 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1073368  Lomatium macrocarpum George B. Rossbach 1955-3-12 370 San Mateo s.e. end Buriburi Ridge (n.w. side San Mateo Creek); San Mateo Creek 76 Comment
  CAS-BOT-BC240586  Lonicera hispidula A. D. E. Elmer 1903-6-1 4255 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC240606  Lonicera hispidula Carl B. Wolf 1930-11-5 1805 San Mateo 2 miles west of La Honda, Santa Cruz Mtns. 304 Comment
  JROH1651  Lonicera hispidula John H. Thomas 1964-11-29 10546 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC243962  Lonicera involucrata var. ledebourii John H. Thomas 1964-6-19 10429 San Mateo 0.9 miles south of Tunitas Creek near Coast Highway 60 Comment
  CAS-BOT-BC243963  Lonicera involucrata var. ledebourii D. E. Breedlove 1974-5-13 36219 San Mateo San Pedro Valley Park, Pacific 152 Comment
  POM222813  Lonicera involucrata var. ledebourii S. S. Berry 1909-3-13 s.n. San Mateo Bridge over San Francisquito Creek, near Adelanto Villa. 46 Comment
  JEPS91401  Lotus benthamii Dean W. Taylor 1989-8-1 10412 San Mateo Montara Mountain, saddle between North Peak and Montara Knob 518 Comment
  RSA100998  Lotus formosissimus G. Oberlander 1949-7-24 268 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve. Comment
  UC15579  Lotus formosissimus Alice Eastwood Apr 1896 San Mateo between Crystal Springs and Millbrae Comment
  UC311112  Lotus formosissimus A. D. E. Elmer Apr 1903 4860 San Mateo Lake San Andreas Comment
  UC80966  Lotus formosissimus Katharine Brandegee 1905-6-20 San Mateo seashore of Halfmoon Bay Halfmoon Bay Comment
  UC80969  Lotus formosissimus C. F. Baker 1902-5-1 689 San Mateo Crystal Springs Lake Comment
  POM18350  Lotus micranthus C. F. Baker 1902-5-4 744 San Mateo Woodside. Comment
  RSA195686  Lotus micranthus John H. Thomas 1967-5-10 12842 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  UC69538  Lotus micranthus J. Burtt Davy 1893-6-22 1156 San Mateo Pilarcitos Comment
  RSA10275  Lotus stipularis H. A. Barker 1927-5-6 679 San Mateo Kings Mountain Comment
  HSC23870  Lotus unifoliolatus var. unifoliolatus Mary Katherine Wicksten 1971-6-15 24 San Mateo Huddart Park Rd. bank near office Comment
  RSA120410  Lotus wrangelianus Ynez Henderson 1950-4-8 s.n. San Mateo San Francisquito Creek. Comment
  UC1129221  Lotus wrangelianus H. S. Yates 1935-5-8 5207 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. 579 Comment
  UC81109  Lotus wrangelianus C. F. Baker 1902-5-1 776 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC195796  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-21 48467 San Mateo Highway 5 - C.S. Dam-Bridge, 0.5 miles south Comment
  CAS-BOT-BC195808  Lupinus albifrons var. albifrons Fred Hemphill 1973-3-1 632 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC195786  Lupinus albifrons var. albifrons Charles Piper Smith 1946-3-26 46115 San Mateo Highway 5, San Francisco County Jail Road north Comment
  CAS-BOT-BC196117  Lupinus albifrons var. collinus M. S. Jussel 1931-4-18 s.n. San Mateo Colma Canyon Comment
  CAS-BOT-BC196120  Lupinus albifrons var. collinus Charles Piper Smith 1908-5-31 1437 San Mateo South San Francisco, in town Comment
  CAS-BOT-BC196129  Lupinus albifrons var. collinus A. D. E. Elmer 1903-5-1 4643 San Mateo Delmont Comment
  SEINET10484531  Lupinus albifrons var. collinus Walter Knight, Irja Knight 1963-8-5 Knight s.n. San Mateo Motorcycle ridge, san bruno mountain Comment
  CAS-BOT-BC196432  Lupinus arboreus Charles Piper Smith 1922-4-29 3503 San Mateo Montara Mt., above Lake Pilarcitos Comment
  CAS-BOT-BC196433  Lupinus arboreus John Thomas Howell 1933-4-9 10973 San Mateo 2 miles n. of Pigeon Pt. Comment
  SBBG11114  Lupinus arboreus D. E. Breedlove 1961-6-18 599 San Mateo 3 mi S of rd to Half Moon Bay 365 Comment
  SEINET10488467  Lupinus arboreus Elizabeth M. McClintock; Walter Knight; Irja Knight; Baki Kasapligil, Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 McClintock s.n. San Mateo San bruno mountain. Colma canyon near old quarry Comment
  UC725853  Lupinus bicolor A. A. Heller 1907-4-20 8451 San Mateo near Lake Merced; near Lake Merced Comment
  UC1048668  Lupinus bicolor Lewis S. Rose 1942-3-30 42006 San Mateo Mills Field 1 Comment
  RSA134067  Lupinus bicolor subsp. tridentatus L. R. Abrams 1904-4-10 s.n. San Mateo Santa Cruz Mountain peninsula, east end of Crystal Springs Lake Comment
  SEINET11071805 Image available Lupinus bicolor subsp. umbellatus A. A. Heller 1907-1 8451 San Mateo Near Lake Merced Comment
  SEINET10484957  Lupinus bicolor var. trifidus David B. Dunn, Howard Brown 1946-5-15 Dunn 2596 San Mateo Collected in meadow land in the bottom of a 50 ft. ravine with a small lake at one end; 1 block N of Sloat Blvd. at Vale Ave. Comment
  CAS-BOT-BC215065  Lupinus chamissonis Charles Piper Smith 1950-5-15 50134 San Mateo Highway 1, 0.4 miles N of Edgemar Comment
  POM257513  Lupinus densiflorus var. aureus Carl B. Wolf 1929-5-17 3712 San Mateo Alpine road east of Skyline Blvd. 305 Comment
  SEINET10485250  Lupinus densiflorus var. palustris Charles Piper Smith 1947-4-25 Smith 47178 San Mateo Belmont, skyline, w of vanderlaan summit. Comment
  RSA0069566  Lupinus formosus Daisie Huang 2006-8-6 06080603 San Mateo Inside San Francisco Water Authority land. 288 Comment
  SBBG11058  Lupinus formosus D. E. Breedlove 1961-6-18 600 San Mateo 3 mi S of rd to Half Moon Bay on US 5 365 Comment
  UC201950  Lupinus formosus Inez Ray Smith 1915-5-27 723 San Mateo Redwood Comment
  RSA134043  Lupinus formosus var. formosus C. F. Leitholt 1894-5-30 s.n. San Mateo On hillback of Sp. V. W. (probably water works near Belmont). Comment
  SEINET10490754  Lupinus formosus var. formosus Charles Piper Smith 1922-6-17 Smith 3552 San Mateo Millbrae-lake pilarcitos. Comment
  SEINET10961856 Image available Lupinus latifolius Charles F. Baker Baker 470 San Mateo Crystal Springs Lake. Comment
  JEPS23917  Lupinus latifolius var. latifolius W. R. Dudley 1895-6-7 4232 San Mateo top of ridge between Pescadero and Butano Creek; between Pescadero and Butano Creek Comment
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Feb 28 2011
  JROH2125  Lupinus luteolus H. & R. Dengler 1958-6-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; 200' due north of point where Corte Madera Cr. enters the preserve Comment
  UC138024  Lupinus microcarpus var. microcarpus C. F. Baker 1902-5-1 850 San Mateo Crystal Springs Lake Comment
  JROH2142  Lupinus nanus John Hunter Thomas 1991-4-25 24995 San Mateo Jasper Ridge Biological Preserve, Stanford University; Rattlesnake Rocks Comment
  JROH2143  Lupinus nanus Ann Lambrecht 2008-3-30 41 San Mateo Jasper Ridge Biological Preserve, Stanford University; on Mine Trail Hill Comment
  JROH2144  Lupinus nanus Toni Corelli 2010-3-29 363 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Road E at junction of Trail 11 and Trail 9 106 Comment
  SBBG66998  Lupinus nanus L. R. Abrams 1914-4-20 5128 San Mateo confluence of Los Troncos and San Francisquito crks Comment
  UC1303142  Lupinus nanus L. R. Abrams 1926-4-19 San Mateo junction of Los Trancos and San Francisquito Creek; jct of Los Trancos and San Francisquito Creek Comment
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Sep 26 2011
  UC15978  Lupinus nanus Ivar Tidestrom May 1894 San Mateo Comment
  RSA134064  Lupinus nanus subsp. nanus James I. McMurphy 1911-5-11 s.n. San Mateo Stanford Park, Stanford University. Comment
  UCD23305  Lupinus polyphyllus Alan T. Whittemore 1976-5-29 107 San Mateo Crystal Springs Canyon, about 1/2 mile below (East of) dam. 39 Comment
  SEINET10490986  Lupinus succulentus var. succulentus Smith 1948-4-23 Smith 48142 San Mateo Hwy 1. San Pedro Point, north grade. Comment
  SEINET10490275  Lupinus vallicola subsp. apricus P. Wheeler 1966-5-1 Wheeler UMO 104189 San Mateo Crocker field industrial park. San bruno mtn. Large colony of blue flowered Lupines with many white flowered plants mixed in. Comment
  SEINET10870826  Lupinus vallicola subsp. apricus Charles Piper Smith 1946-3-26 Smith 46118 San Mateo Woodside, 2.3 m N. Comment
  RSA177074  Lupinus variicolor John H. Thomas 1964-6-19 10432 San Mateo Near Pigeon Pt. Lighthouse. Comment
  JROH4525  Luzula comosa var. comosa John H. Thomas 1967-4-20 12712 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC441368  Luzula subsessilis John H. Thomas 1958-3-19 7060 San Mateo East facing slope of San Bruno Mountain, just N of South San Francisco 91 Comment
  JROH4165  Lycopersicon esculentum John Hunter Thomas 1981-10-25 20767 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM186050  Lysichiton americanus A. D. E. Elmer 1903-06 4551 San Mateo Butano Creek 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
  RSA0011329  Lythrum hyssopifolia Carl B. Wolf 1929-6-8 3744 San Mateo East base of La Honda Grade. Comment
  CAS-BOT-BC343902  Madia elegans David D. Keck 1931-10-5 1279 San Mateo Crystal Springs Lake, east side Comment
  CAS-BOT-BC343903  Madia elegans David D. Keck 1932-6-18 1979 San Mateo Skyline Blvd., at Langley Hill. (S.W. of Stanford University) 600 Comment
  CAS-BOT-BC344496  Madia exigua Lewis S. Rose 1956-5-28 56083 San Mateo Emerald Lake. Hills w. of Redwood City 182 Comment
  CAS-BOT-BC344486  Madia exigua H. A. Dutton 1900-5-6 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside Comment
  CAS-BOT-BC343327  Madia gracilis L. R. Abrams 1920-6-1 7502 San Mateo Santa Cruz Mountain Peninsula. Back of Redwood City Comment
  JROH1071  Madia gracilis John H. Thomas 1969-5-28 15093 A 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
  SEINET5782363 Image available Madia madioides L. S. Rose 1941-7-2 41287 San Mateo Kings Mountain Comment
  CAS-BOT-BC345110  Madia sativa J. H. Thomas 1963-7-19 10179 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC345127  Madia sativa D. E. Breedlove 1973-9-26 35554 San Mateo Pescadero Creek County Park 365 Comment
  JEPS30896  Madia sativa J. H. Thomas 1959-8-16 8064 San Mateo about 2 mi sw Pescadero 60 Comment
  JEPS40342  Madia sativa L. M. Newlon 1921-1-1 240 San Mateo from Salada to Mussel Rock Comment
  JROH1112  Madia sativa John Hunter Thomas 1983-7-7 22828 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM284995  Madia sativa Lyman Benson 1935-5-5 6543 San Mateo Lake Searsville. Stanford University. Santa Cruz Mtn range. S.F. Bay watershed. 152 Comment
  UC483494  Madia sativa Ira L. Wiggins 1929-7-4 3796 San Mateo sea bluffs at Pescadero Beach Comment
  CAS-BOT-BC345117  Madia sativa David D. Keck 1932-8-11 1745 San Mateo Skyline Blvd., about 1 mi. S. of junction with Alpine Creek road, Santa Cruz Mts., Santa Clara--San Mateo Co. line 640 Comment
  CAS-BOT-BC345119  Madia sativa David D. Keck 1932-8-11 1745 San Mateo Skyline Blvd., about 1 mi. S. of junction with Alpine Creek road, Santa Cruz Mts., Santa Clara--San Mateo Co. line 640 Comment
  CAS-BOT-BC345129  Madia sativa David D. Keck 1934-7-7 2941 San Mateo South of the mouth of Tunitas Creek Comment
  JROH1113  Madia sativa John Hunter Thomas 1988-6-6 24511 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Lakeside Laboratory Comment
  SEINET11810637  Madia sativa Unknown 1932-1 9191 San Mateo Los Francos Woods Comment
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Nov 1 2021
  CAS-BOT-BC511333  Maianthemum dilatatum Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain, exposed slopes below top of mountain Comment
  CAS-BOT-BC512104  Maianthemum racemosum subsp. amplexicaule Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Romanzoffia ravine; San Bruno Mountain Comment
  CAS-BOT-BC514167  Maianthemum stellatum John H. Thomas 1961-5-7 9280 San Mateo San Bruno Mountain in northern part of county Comment
  JROH4709  Maianthemum stellatum John Hunter Thomas 1977-6-16 18746 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC514169  Maianthemum stellatum Walter & Irja Knight 1964-5-4 s. n. San Mateo Colma Canyon, south ridge Comment
  SD27772  Maianthemum stellatum Carl B. Wolf 1927-4-3 250 San Mateo 1 mile above La Honda. 244 Comment
  UC138326  Malacothamnus davidsonii J. W. Congdon 1897-7-27 San Mateo Belmont Comment
  JROH2960  Malacothamnus fasciculatus D. E. Breedlove 1971-5-31 19352 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
  UCD116405  Malva arborea Ellen Dean; Tom Starbuck, Margaret Starbuck 2005-10-16 2745 San Mateo Town of Miramar, N of Half Moon Bay. Along Mirada Rd. on coastal bluff overlooking beach. Comment
  UCD54555  Malva arborea Ellen Dean; Tom Starbuck, Margaret Starbuck 2005-10-16 2745 San Mateo Town of Miramar, N of Half Moon Bay. Along Mirada Rd. on coastal bluff overlooking beach. Comment
  SEINET5560600  Malva parviflora H. S. Gentry 1931-1 87 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  CHSC1037  Malva sylvestris L. Lancelot 1930-5-3 San Mateo Moss Beach. Comment
  SBBG51307  Malva sylvestris J. Doty 1969-3-24 580 San Mateo N side of Embarcadero Rd, just W of W boundary of Byxbee Marshlands Wildlife Preserve, Menlo Park 1 Comment
  JROH1898  Marah fabacea James Newman 1951-4-21 41 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake 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
  RSA440956  Marah fabacea K. M. Stocking 1947-5-15 39 San Mateo 2 miles W of Redwood City, just E of Woodside. Comment
  SJSU11761  Marah fabacea S. Anderson 1962-4-15 San Mateo Burlingame Hills near Burlingame Comment
  RSA441244  Marah oregana K. M. Stocking 1947-5-15 40 San Mateo E of Pescadero 1.5 miles. 46 Comment
  CAS-BOT-BC422673  Meconella californica C. F. Baker 1902-4-6 457 San Mateo Crystal Springs Lake Comment
  JROH2155  Medicago arabica John Hunter Thomas 1992-4-23 25156 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Rattlesnake Rocks and along trail to redwoods Comment
  JROH2166  Medicago polymorpha John H. Thomas 1973-3-12 16481 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2167  Medicago polymorpha John H. Thomas 1973-4-14 16573 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2170  Medicago polymorpha John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA788950  Medicago polymorpha Peter Rubtzoff 1977-4-16 8952 San Mateo San Bruno Mountains. Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction, along W side of East Fork Colma Creek Canyon. 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-BC281408  Melica imperfecta Walter & Irja Knight 1964-5-30 s.n. San Mateo San Bruno Mt. Colma Canyon Comment
  JROH5312  Melica subulata John Rawlings 2005-5-15 1006 San Mateo Jasper Ridge Biological Preserve, Stanford University; verge of Trail 2 from 100 to 250 yards west of the zoology cabin site 82 Comment
  CAS-BOT-BC264239  Melica torreyana Ira L. Wiggins 1928-4-14 2904 San Mateo Alpine Creek Road Comment
  CAS-BOT-BC264248  Melica torreyana W. R. Dudley 1899-5-1 s.n. San Mateo Road from San Andreas Rs. to Pilarcitos, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC264250  Melica torreyana W. R. Dudley 1894-8-13 s.n. San Mateo Devil's Canyon, Santa Cruz Mountain Peninsula Comment
  JROH5313  Melica torreyana John H. Thomas 1964-4-12 10310 San Mateo Jasper Ridge Biological Preserve, Stanford University. On slope to the east of the dam. Comment
  JROH5314  Melica torreyana John H. Thomas 1970-4-29 15615 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA159421  Melica torreyana John H. Thomas 1961-5-14 9374 A San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  JROH2179  Melilotus albus John H. Thomas 1976-10-16 18401 San Mateo Jasper Ridge Biological Preserve, Stanford University; in Searsville Lake at the mouth of Corte de Madera Creek Comment
  JROH2187  Melilotus indicus John H. Thomas 1973-6-15 16838 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2196  Melilotus indicus John Hunter Thomas 1987-5-5 24243 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC24045  Melilotus indicus Mary Katherine Wicksten 1971-6-15 12 San Mateo Huddart Park Rd. bank near office Comment
  JROH2197  Melilotus indicus John Hunter Thomas 1987-5-15 24283 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  JROH2811  Mentha pulegium John H. Thomas 1978-9-24 19338 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Searsville Lake Comment
  JROH2826  Mentha spicata Carol Zabel 2006-8-23 64 San Mateo Jasper Ridge Biological Preserve, Stanford University; Dennis Martin site Comment
  JROH2827  Mentha suaveolens Ann Lambrecht 2007-8-15 30 San Mateo Jasper Ridge Biological Preserve, Stanford University; Corte Madera Creek Comment
  UC1778594  Mercurialis annua T. C. Fuller 1960-6-23 4542 San Mateo East fence line, Sanchez Adobe House, S side of Linda Mar Blvd., Pedro Valley. Comment
  UCD144580  Mercurialis annua Greg Escoto 2014-2-21 s.n. San Mateo San Pedro Valley Park, a county park located at 600 Oddstad Blvd., Pacifica. Visitor Center flower beds. 55 Comment
  CAS-BOT-BC428905  Micranthes californica Elizabeth McClintock 1965-3-21 s.n. San Mateo San Bruno Mountain. 1/4 mi. e. of Brisbane power lines 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
  JROH1130  Micropus californicus var. californicus John Hunter Thomas 1986-5-6 24003 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC348573  Micropus californicus var. californicus George Oberlander 1949-7-24 286 San Mateo San Francisco Watershed Reserve. Northern Cahill Ridge Comment
  CAS-BOT-BC348721  Microseris bigelovii John H. Thomas 1963-5-20 10146 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  JROH1139  Microseris douglasii subsp. douglasii John H. Thomas 1956-4-7 5615 San Mateo Jasper Ridge Biological Preserve, Stanford University; open serpentine area on top of ridge and adjacent slopes Comment
  CAS-BOT-BC349030  Microseris douglasii subsp. douglasii John H. Thomas 1967-5-2 12821 San Mateo Along Skyline Blvd., 0.4 miles south of Black Mountain Road intersection. Hillsborough Comment
  CAS-BOT-BC349039  Microseris douglasii subsp. douglasii Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  JEPS49069  Microseris douglasii subsp. tenella Lewis S. Rose 1966-5-2 66037 B San Mateo w Redwood City; Emerald Lake 91 Comment
  UC50013  Microseris douglasii subsp. tenella E. L. Greene 1886-5-9 San Mateo Belmont Comment
  JROH3218  Microsteris gracilis John H. Thomas 1968-3-17 14180 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12269789  Mimulus aurantiacus J. I. McMurphy 1906-1 25 San Mateo Kings Mt., Santa Cruz Mts., Santa Cruz Peninsula Comment
  HSC23941  Mimulus aurantiacus var. aurantiacus Mary Katherine Wicksten 1971-6-15 7 San Mateo Huddart Park, above Zwierlein Area Comment
  JROH4072  Mimulus aurantiacus var. aurantiacus John H. Thomas 1974-5-29 17405 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4073  Mimulus aurantiacus var. aurantiacus John H. Thomas 1974-5-29 17405 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4074  Mimulus aurantiacus var. aurantiacus John H. Thomas 1975-6-5 17936 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack Comment
  RSA218021  Mimulus aurantiacus var. aurantiacus Phillip Wheeler 1967-5-14 s.n. San Mateo East side of mountain, above Harold Ave., Brisbane. Grassy slope above Philip Wheeler's house. Comment
  UC306596  Mimulus cardinalis A. D. E. Elmer July, 1903 4941 San Mateo Lake San Andreas Comment
  RSA60035  Mimulus guttatus G. R. Campbell 1950-6-7 15484 San Mateo 7 miles north of Junction of Hwy 5 and 9; hills west of Palo Alto. 457 Comment
  POM151741  Minuartia douglasii Edward L. Greene 1902-5-4 835 San Mateo Woodside. Comment
  CAS-BOT-BC388834  Minuartia douglasii George Oberlander 1950-4-22 750 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  RSA107042  Minuartia douglasii L. S. Rose 1956-5-7 56067 San Mateo Skyline Blvd west of San Mateo. 183 Comment
  NY429333  Monardella franciscana A. D. E. Elmer 07 1903 4766 San Mateo San Pedro Comment
  CAS-BOT-BC214087  Monardella villosa Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  CAS-BOT-BC214178  Monardella villosa Ned Cahill 1974-4-29 209 San Mateo Near the interesection of Canada and Edgewood Roads about 3 mi westward from Redwood City Comment
  RSA18315  Monardella villosa Carl B. Wolf 1927-7-14 596 San Mateo Summit of Kings Mt. at junction with Skyline Drive Comment
  CDA40773  Monardella villosa subsp. franciscana G. D. Barbe 1974-6-4 1825 San Mateo Middle Fork San Pedro Creek, southeast of Oddstad Boulevard, Linda Mar District. Coastal part of county. 0 Comment
  SEINET10582378  Monardella villosa subsp. franciscana A. Graff 1993-7-13 Graff 181 San Mateo Devil's Slide, in arroyos on inland side of Hwy. 1. Mostly past bloom. Coastal scrub. Comment
  SEINET10862297  Monardella villosa subsp. franciscana A. Graff 1993-6-14 Graff 3 San Mateo 0.37 miles down Bean Hollow Road from its intersection with Pescadero Road, along right road cut. Windy, exposed, dry, steep, rocky cuts. Locally infrequent, with Artemisia californica, Baccharis pilularis, Mimulus aurantiacus, Eriophyllum stachaedifolium, Anaphalis margaritacea, Dudleya sp., Scrophularia californica, Eriogonum sp., grasses. Comment
  CAS-BOT-BC327792  Monolopia gracilens George Oberlander 1949-5-13 155 San Mateo On Sawyer Ridge (San Francisco Watershed Reserve) Comment
  UC1206482  Muilla maritima Le Roy Abrams 1902-4-13 2330 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC508585  Muilla maritima H. A. Dutton 1900-2-8 s.n. San Mateo Woodside, Santa Cruz Peninsula Comment
  POM291273  Muilla maritima Lyman Benson 1931-3-10 2643 San Mateo Redwood City. Santa Cruz mtn range, Emerald Lake. 152 Comment
  CAS-BOT-BC515667  Muscari botryoides J. H. Thomas 1960-3-30 8560 San Mateo San Francisco Creek near El Camino, Menlo Park. Comment
  SFV16938  Myosotis discolor J. N. Hogue 1980-9-1 82 .2 San Mateo Santa Cruz Mountains Heritage Grove Redwood Reserve, near Loma Mar. Comment
  UC1252098  Myosotis latifolia J. H. Thomas 1955-3-18 4687 San Mateo 5 mi. up Tunitas Creek Rd. from coast 304 Comment
  RSA128901  Myosotis latifolia Roxana S. Ferris 1920-4-26 1960 San Mateo Pescadero Creek at beginning of the canyon. 244 Comment
  RSA18201  Myosotis latifolia C. B. Wolf 1929-5-25 3735 San Mateo 2 miles from Pescadero on Alpine Creek. Comment
  HSC23339  Myosotis sylvatica L. A. Wright Jr. 1971-4-4 25 San Mateo 0.5 mi. E on Gazos Creek Rd. from junction with Cloverdale Rd., 6.5 mi. S off of Pescadero Rd., about 3 mi. E off of Hwy. 1. On N side of Gazos Creek, about 25 ft. from the creek and about 100 ft. from the road 91 Comment
  CAS-BOT-BC101776  Myrica californica Ira L. Wiggins 1929-5-10 3678 San Mateo Roadside between Pigeon Point and Pescadero Comment
  RSA130858  Myrica californica R. C. Bacigalupi 1922-03 s.n. San Mateo Along coast near lagoon at Arroyo de los Frijoles. Comment
  RSA15308  Myrica californica Carl B. Wolf 1927-4-3 278 San Mateo 1 mi. west of Summit of La Honda grade, Santa Cruz Mts. Comment
  JROH2692  Myriophyllum aquaticum John H. Thomas 1976-5-19 18143 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2694  Myriophyllum aquaticum John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2693  Myriophyllum aquaticum John Hunter Thomas 1977-6-16 18782 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5836  Narcissus pseudonarcissus Ann Lambrecht 2007-3-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Planted in Old Garden near Douglas Iris site off Trail 20 toward San Francisquito Creek Comment
  CAS-BOT-BC260026  Nassella lepida George Oberlander 1950-5-6 774 San Mateo San Francisco Watershed Reserve. San Andreas Valley Comment
  CAS-BOT-BC260236  Nassella pulchra John H. Thomas 1971-5-2 15869 F San Mateo Near intersection of Canada Road and Edgewater Road, about 3 miles W from Redwood City 152 Comment
  RSA127725  Nasturtium officinale John H. Thomas 1959-7-8 8018 San Mateo Pescadero Beach. Comment
  JROH1575  Nasturtium officinale Carol Zabel 1989-8-11 28 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek bank near low-flow crossing at Road C Comment
  JROH3199  Navarretia heterodoxa John H. Thomas 1963-6-23 10165 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near exclosure on northern slope of ridge. Comment
  RSA42950  Navarretia heterodoxa R. C. Bacigalupi 1947-6-4 2821 San Mateo Back of San Carlos Comment
  LA206579  Navarretia squarrosa Ira L. Wiggins; 1929-7-4 3777 San Mateo 4 mi. W. of La Honda on hill road to Pescadero Beach Comment
  SEINET12279167  Navarretia squarrosa Unknown 1933-1 10468 San Mateo near Baden Station Comment
  JROH2748  Nemophila John Hunter Thomas 1981-4-5 20287 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek Comment
  SD38536  Nemophila menziesii Janet Turner 1933-4-19 3728 San Mateo Above Emerald Lake Comment
  POM289745  Nemophila menziesii var. menziesii Lyman Benson 1930-5-1 2067 San Mateo Stanford University. San Lorenzo Mt. Range. 91 Comment
  CAS-BOT-BC219472  Nemophila parviflora C. F. B. 1902-4-12 509 San Mateo La Honda Comment
  CDA29076  Nemophila parviflora D. G. Kelch 2009-6-9 9 .407 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-BC219473  Nemophila parviflora Alice Eastwood 1933-5-14 18849 San Mateo Woodside, woods near Schillings place Comment
  CAS-BOT-BC233463  Nicotiana glauca J. H. Thomas 1964-3-31 10293 San Mateo Bank of San Francisquito Creek at University Avenue Bridge, Palo Alto Comment
  CAS-BOT-BC140426  Oemleria cerasiformis W. R. Dudley 1900-3-18 s.n. San Mateo Below San Andreas Dam Comment
  CAS-BOT-BC140431  Oemleria cerasiformis David D. Keck 1932-3-6 1396 San Mateo Near La Honda, Santa Cruz Mountains Comment
  JROH3718  Oemleria cerasiformis John Hunter Thomas 1990-4-26 24811 San Mateo Jasper Ridge Biological Preserve, Stanford University. To the west of the dam Comment
  RSA77093  Oemleria cerasiformis D. D. Keck 1932-3-6 1396 San Mateo Near La Honda, Santa Cruz Mountains. Comment
  SEINET5563016  Oemleria cerasiformis H. S. Gentry 1931-1 17 San Mateo 1.5 mile W of San Mateo, Half-Moon Bay road. Comment
  UC311169  Oemleria cerasiformis A. D. E. Elmer Mar 1903 4579 San Mateo Woodside Comment
  RSA15259  Oemleria cerasiformis Carl B. Wolf 1927-2-26 222 San Mateo In chaparral on east side of La Honda grade. Comment
  SEINET12189806  Oenothera elata Unknown 1933-1 10375 San Mateo Boden Station, South san Francisco Comment
  UC1122259  Oenothera elata subsp. hookeri G. E. Sindel 1935-7-25 307 San Mateo 1 mi w Pescadero; Santa Cruz Quadrangle Comment
  RSA303928  Oenothera elata subsp. hookeri Jim R. Shevock 1970-11-25 549 San Mateo Coastal Strand 8 Comment
  JROH2989  Olea europaea John H. Thomas 1967-6-1 12981 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET199760  Orobanche californica subsp. californica Herbert L. Mason 1927-7-28 3983 San Mateo Pigeon Point Comment
  JEPS121488  Orobanche fasciculata Adam C. Schneider with C. Matt Guilliams 2013-5-17 189 San Mateo Crystal Springs Reservoir Comment
  UC27863  Orobanche fasciculata J. Burtt Davy 1893-6-17 786 San Mateo Belmont. Comment
  JROH5717  Orobanche fasciculata Herb Dengler 1963-5-26 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Rattlesnake Rocks along path to redwoods Comment
  CAS-BOT-BC500319  Orobanche uniflora subsp. occidentalis L. R. Abrams 1904-4-10 s.n. San Mateo San Mateo Canyon Comment
  CAS-BOT-BC500320  Orobanche uniflora subsp. occidentalis George Oberlander 1951-3-30 1172 San Mateo San Francisco Watershed Reserve: San Andreas Valley Comment
  SEINET12270179  Orthocarpus densiflorus M. T. Doutt 1931-1 416 San Mateo Skyline Blvd, W of Hillbrae Comment
  RSA130958  Orthocarpus erianthus var. erianthus Hester R. Davis 1920-4-8 s.n. San Mateo Near San Francisquito Creek. Comment
  POM194754  Orthocarpus purpurascens var. latifolius D. D. Keck 1927-6-10 395 San Mateo Radio Station, Montara Point. 0 Comment
  POM126843  Orthocarpus pusillus R. L. Pendleton 1907-4-20 590 San Mateo Lake Merced. 46 Comment
  JROH295  Osmorhiza berteroi John Hunter Thomas 1985-5-2 23580 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH301  Osmorhiza berteroi John Hunter Thomas 1989-6-6 24767 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET244349  Osmorhiza chilensis David H. French 1968-4-12 2843 San Mateo Near Palo Alto coast (Pescadero) Road, 11.7 mi. E. of Pescadero. Comment
  CHSC25146  Oxalis oregana R. N. Bowman 1971-4-5 17 San Mateo On embankment along E. side of Gazos Creek, ca. 7.6 mi. N.W. of Big Basin State Park office and ca. 25 yards W. of Gazos Creek Rd. 121 Comment
  UC762243  Oxalis oregana R. F. Hoover 1939-3-3 3896 San Mateo above Portola (on La Honda rd) Comment
  RSA240600  Oxalis oregana C. W. Tilforth, John Dourley 1973-7-19 934 San Mateo Gazos Creek Road, between Butano and Big Basin State Parks Comment
  SEINET12182802  Oxalis oregana Unknown 1933-1 10394 San Mateo White House Creek Comment
  CAS-BOT-BC318251  Packera breweri W. R. Dudley 1893-5-3 s.n. San Mateo Foothills near Stanford University. Comment
  JROH5339  Panicum capillare Ann Lambrecht 2006-8-23 29 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek near Dennis Martin marker. 71 Comment
  LA14373  Parapholis incurva A. Hornay; 1932-5-29 sn San Mateo San Bruno Comment
  UC1101573  Parapholis incurva Malcolm A. Nobs and S. Galen Smith 1949-8-26 1604 San Mateo Hwy 1, 0.6 mi n Pigeon Point Comment
  JROH5870  Parthenocissus quinquefolia Ann Lambrecht 2011-7-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; at Bear Creek crossing near Preserve boundary fence Comment
  JROH4111  Pedicularis densiflora John H. Thomas 1967-6-1 12970 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC266665  Pedicularis dudleyi J. H. Thomas 1961-5-23 9452 San Mateo Portola State Park, near junction of Peters and Pescadero Creeks 152 Comment
  CAS-BOT-BC207024  Pelargonium vitifolium John Thomas Howell 1932-12-21 10864 San Mateo Along road just south of Pescadero. Comment
  CAS-BOT-BC207032  Pelargonium vitifolium L. R. Abrams; I. L. Wiggins 1939-6-3 437 San Mateo 2 miles north of Pigeon Point Light Comment
  CAS-BOT-BC207033  Pelargonium vitifolium Ira L. Wiggins 1929-5-10 3675 San Mateo Roadside between Pigeon Point and Pescadero. Comment
  JROH101  Pellaea andromedifolia John Hunter Thomas 1981-2-14 20226 San Mateo Jasper Ridge Biological Preserve, Stanford University. Path below dam Comment
  CAS-BOT-BC265731  Pennisetum villosum John H. Thomas 1969-6-6 15517 San Mateo Menlo Park, near El Camino and Cambridge Comment
  CAS-BOT-BC222702  Perideridia gairdneri subsp. gairdneri V. F. Hesse 1954-7-30 1344 San Mateo Near Pebble Beach 15 Comment
  CAS-BOT-BC222703  Perideridia gairdneri subsp. gairdneri V. F. Hesse 1954-7-30 1344 San Mateo Near Pebble Beach 15 Comment
  HSC23968  Perideridia kelloggii Mary Katherine Wicksten 1971-7-22 183 San Mateo Huddart Park, near park entrance Comment
  CAS-BOT-BC413606  Persicaria amphibia Josephine D. Randall 1907-7-23 287 San Mateo Santa Cruz Peninsula. Crystal Springs Lake Comment
  CAS-BOT-BC419389  Persicaria punctata W. R. Dudley 1897-10-11 s.n. San Mateo Santa Cruz Peninsula. Toward PIlar Pt. Comment
  CAS-BOT-BC419390  Persicaria punctata Ira L. Wiggins 1974-10-27 22132 San Mateo Bed of San Francisquito Creek, along line between Palo Alto and Mrnlo [Menlo] Park and between San Mateo and Santa Clara Counties, near Pope Street bridge Comment
  UCD99803  Persicaria punctata Malcolm A. Nobs; S. Galen Smith 1949-8-25 1560 San Mateo Sharp Park. Comment
  RSA116727  Petasites frigidus var. palmatus M. N. paulson 1915-04 s.n. San Mateo La Honda Grade Comment
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Sep 11 2011
  POM289352  Phacelia californica Lyman Benson 1930-4-6 2038 San Mateo Spring Valley, Crystal Springs Lake, San Lorenzo Mt. Range. 183 Comment
  POM65447  Phacelia californica C. F. Baker 1902-5-1 690 San Mateo Crystal Springs Lake. Comment
  SBBG51579  Phacelia californica J. Doty 1969-3-26 596 San Mateo 100 yds E of the jct of St hwys 35 and 92 Comment
  UCD120300  Phacelia californica J. Doty 1969-3-26 596 San Mateo 100 yards east of the junction of State Highways 35 and 92, near summit of Coast Range. Comment
  SEINET3158140  Phacelia distans L. S. Rose 1939-4-13 39065 San Mateo San Mateo Canyon near Crystal Springs Lake 61 Comment
  UC306570  Phacelia distans A. D. E. Elmer April 1903 4862 San Mateo San Pedro Comment
  UC75119  Phacelia distans C. F. Baker 1903-4-6 1898 San Mateo San Bruno Hills Comment
  CDA34191  Phacelia malvifolia D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .172 San Mateo Swanton Rd just S of Ano Nuevo above Weddell Creek. Comment
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Sep 15 2021
  JROH2761  Phacelia nemoralis var. nemoralis John H. Thomas 1973-6-15 16848 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC154292  Phacelia ramosissima Class Collection 1940-1-1 s.n. San Mateo Dunes, Ano Nuevo Point Comment
  CDA2281  Phalaris aquatica T. C. Fuller 1967-6-13 15947 San Mateo Road to San Mateo, 0.7 miles east of Skyline Blvd., east above Crystal Springs Lake. 0 Comment
  JROH5369  Phalaris aquatica John Hunter Thomas 1983-7-7 22825 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5376  Phalaris aquatica John Hunter Thomas 1989-6-6 24760 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5377  Phalaris aquatica John Hunter Thomas 1989-6-6 24760 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5380  Phalaris brachystachys John Rawlings 2005-5-25 1003 San Mateo Jasper Ridge Biological Preserve, Stanford University; 100 yards west from Escobar Gate, 20 yards north of Road F 161 Comment
  CAS-BOT-BC259000  Phalaris californica John Thomas Howell 1938-6-4 13885 San Mateo Burlingame Comment
  CAS-BOT-BC259009  Phalaris californica W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Crystal Springs Comment
  RSA100972  Phalaris californica G. Oberlander 1949-4-2 27 San Mateo North Cahill; San Francisco Watershed Reserve Comment
  UC204158  Phalaris californica A. D. E. Elmer June, 1903 4699 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC250645  Phalaris minor L. R. Abrams 1927-6-4 s.n. San Mateo San Gregorio Comment
  SEINET10657416  Phalaris minor Robert V. Bradshaw 1922-4-30 Bradshaw 2675 San Mateo Sandhill road near Searsville Lake Comment
  JROH5855  Phalaris paradoxa Herb Dengler 1980-6-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; ca. 100 yards due N. of 2nd enclosure Comment
  CAS-BOT-BC222502  Pholistoma auritum var. auritum Miss E. Cannon No date on label s.n. San Mateo South San Francisco 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
  UC1244706  Phoradendron villosum John H. Thomas 1959-8-22 8080 San Mateo ca. 5 mi. s.w. Palo Alto (Jasper Ridge); Jasper Ridge 152 Comment
  RSA176725  Physocarpus capitatus John H. Thomas 1962-7-15 9915 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  RSA18288  Pickeringia montana var. montana Carl B. Wolf 429 San Mateo East slope of Kings Mt. Comment
  CDA34055  Pinus attenuata D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .155-B San Mateo Santa Cruz Mountains; Along Route 9, ~5 km E of Big Basin Redwoods. Comment
  JEPS121040  Pinus radiata Adam C. Schneider with C. Matt Guilliams 2013-3-8 40 San Mateo Crystal Springs Reservoir, Northern part of western margin of San Francisco Public Utilities Commission land. Comment
  JROH121  Pinus radiata John Hunter Thomas 1979-9-9 19730 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC137315  Piperia elegans L. R. Abrams 1909-8-2 4274 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  UCSC008616  Piperia transversa Randall Morgan 1989-1-1 322 -P San Mateo Jamison Creek Road Comment
  JROH1406  Plagiobothrys bracteatus John H. Thomas 1966-4-6 11553 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15930  Plagiobothrys bracteatus Toni Corelli, John Rawlings 2016-4-29 1768 San Mateo Cascade Field along Atkinson Bluff Trail, north of Cascade Cr. Trail, in Ano Nuevo State Park 11 Comment
  JROH1407  Plagiobothrys bracteatus Herbert Dengler 1966-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC228136  Plagiobothrys chorisianus Dr. E Goodman 1922-5-23 s.n. San Mateo San Bruno Hills Comment
  CAS-BOT-BC228142  Plagiobothrys chorisianus Alice Eastwood; John Thomas Howell 1938-6-26 6068 San Mateo Pigeon Point Comment
  CAS-BOT-BC228143  Plagiobothrys chorisianus Alice Eastwood; John Thomas Howell 1938-4-24 5249 San Mateo Tunitas Comment
  UC573060  Plagiobothrys chorisianus H. L. Mason 1927-4-23 3692 San Mateo between Pescadero Creek and La Honda Comment
  UC579690  Plagiobothrys chorisianus H. S. Yates 1935-5-8 5216 San Mateo 2 mi s Pescadero; Santa Cruz Quad. 60 Comment
  CAS-BOT-BC228121  Plagiobothrys chorisianus David D. Keck 1938-5-30 4728 San Mateo Pescadero, on bluffs overlooking ocean Comment
  JEPS120462  Plagiobothrys chorisianus var. chorisianus Daniel Slakey 2013-4-6 53 San Mateo Ano Nuevo State Reserve, just north of the Cascade Creek Trail and west of the Atkinson Bluff Trail. Comment
  SEINET13365367  Plagiobothrys chorisianus var. chorisianus D. W. Taylor 2008-4-16 20181 San Mateo Half Moon Bay, bluff at the far W end of Redondo Beach Drive. 15 Comment
  CAS-BOT-BC228172  Plagiobothrys chorisianus var. hickmanii Anne Constant 1955-5-28 192 San Mateo At Pescadero Beach 7 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
  JROH1410  Plagiobothrys chorisianus var. hickmanii John H. Thomas 1969-4-12 14890 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
  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
  JEPS85235  Plagiobothrys diffusus Roy E. Buck and James A. West 1985-4-29 527 San Mateo in and adjacent to shallow watercourse at head of minor gulch just n Whitehouse Canyon Rd. (ca 0.8 air km ne of Whitehouse Canyon Rd.-CA Hwy 1 jct, 1.0 air km ene of Franklin Point); Cascade Ranch 60 Comment
  JROH1433  Plagiobothrys nothofulvus John Hunter Thomas 1991-4-11 24979 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH1434  Plagiobothrys tenellus Le Roy Abrams 1904-5-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC625428  Plantago elongata L. R. Abrams and I. L. Wiggins 1939-6-3 422 San Mateo Ano Nuevo Point Comment
  UCD124413  Plantago elongata June McCaskill 1954-5-8 293 San Mateo Moss Beach. Comment
  JROH3112  Plantago erecta John H. Thomas 1974-4-13 17151 San Mateo Jasper Ridge Biological Preserve, Stanford University; near area H Comment
  JROH3113  Plantago erecta John H. Thomas 1975-4-19 17796 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3114  Plantago erecta John H. Thomas 1977-5-4 18599 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge entrance Comment
  JROH3130  Plantago lanceolata John H. Thomas 1971-4-3 15743 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  SEINET7097922  Platanthera dilatata var. leucostachys A. G. Vestal 1937-1 San Mateo Comment
  SEINET3854600 Image available Platystemon californicus Lewis S. Rose 1933-5-17 33170 San Mateo Redwood City. Comment
  SEINET3854785 Image available Platystemon californicus Lewis S. Rose 1932-4-10 32139 San Mateo Redwood City. Comment
  SD38887  Plectritis ciliosa Cumming, Mc Callum 1933-5-10 3716 San Mateo Near Spring Valley lakes 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
  UC416761  Plectritis macrocera J. Burtt Davy 1893-6-17 783 San Mateo Belmont Comment
  UC766305  Plectritis macrocera R. F. Hoover 1941-4-23 4908 San Mateo Redwood City Comment
  CAS-BOT-BC260961  Pleuropogon californicus var. californicus J. I. McMurphy 1906-5-8 s.n. San Mateo Road near head of Crystal Springs Lakes by road from Woodside to Byrnes Store Comment
  POM198992  Pleuropogon californicus var. californicus A. D. E. Elmer 1903-06 4848 San Mateo Millbrae Comment
  POM284984  Pleuropogon californicus var. californicus Lyman Benson 1930-4-26 2060 San Mateo Stanford University. 122 Comment
  SD99466  Poa annua Ira L. Wiggins 1975-4-17 22142 San Mateo NE side of Southern Pacific right-of-way, between San Francisquito Creek and Willow Road, San Mateo, along path Comment
  JROH5618  Poa bulbosa subsp. vivipara John Rawlings 2014-5-3 1219 San Mateo Jasper Ridge Biological Preserve, Stanford University. At downhill side of trail 14 about midway between dam and road C, near the lone Amelanchier utahensis. 98 Comment
  UCSC007769  Poa douglasii Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH5408  Poa howellii H. J. Dengler 1961-5-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; 20' above (S.W.) of San Francisquito Creek, and immediately above Tiger Lily site where there is a seep beneath a large laurel. 77 Comment
  CAS-BOT-BC173840  Poa pratensis Peter Rubtzoff 1976-5-22 8544 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  POM87691  Poa secunda Le Roy Abrams 1902-5-4 2408 San Mateo Woodside. Comment
  CAS-BOT-BC243116  Poa secunda subsp. secunda John H. Thomas 1971-5-2 15839 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles W from Redwood City 152 Comment
  CAS-BOT-BC243126  Poa secunda subsp. secunda H. A. Dutton 1900-3-11 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  JROH5950  Poa secunda subsp. secunda John Rawlings 2017-4-3 2013 San Mateo Jasper Ridge Biological Preserve, Stanford University; around seep in opening in serpentine chaparral, upper Big Inlet drainage of Searsville Lake 149 Comment
  CAS-BOT-BC244254  Poa unilateralis Walter & Irja Knight 1965-4-25 1054 San Mateo San Bruno Mountain. Owl's Canyon 228 Comment
  SJSU15794  Poa unilateralis subsp. unilateralis Toni Corelli 2010-7-8 643 San Mateo Bean Hollow State Beach along Arroyo de los Frijoles Trail 10 Comment
  JROH2856  Pogogyne serpylloides John H. Thomas 1966-4-29 11588 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2857  Pogogyne serpylloides D. E. Breedlove 1971-5-5 19325 San Mateo Jasper Ridge Biological Preserve, Stanford University; on bluff above San Fancisquito Creek, 500 yards below Searsville Dam Comment
  UC23974  Polemonium carneum C. T. Blake 1893-5-27 San Mateo Pilarcitos Reservoir Comment
  RSA120735  Polygala californica S. S. Tillett, I. Sternback 1956-6-24 531 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  UC1192322  Polygonum amphibium var. emersum Malcolm A. Nobs and S. Galen Smith 1949-8-26 1603 San Mateo along Hwy 1 0,.6 mi n Pigeon Point Comment
  CAS-BOT-BC414235  Polygonum aviculare subsp. depressum J. H. Thomas 1963-7-19 10180 B San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC6613  Polygonum coccineum f. terrestre Charles Fuller Baker 1902-10-20 1835 San Mateo Searsville Comment
  UC563966  Polygonum convolvulus Ira L. Wiggins 1935-8-24 8159 San Mateo roadside 2 mi e Half Moon Bay Comment
  CAS-BOT-BC109241  Polygonum paronychia Carl B. Wolf 1929-5-25 3726 San Mateo Pebble Beach south of Pescadero. Comment
  UC483492  Polygonum paronychia Ira L. Wiggins 1929-7-4 3795 San Mateo Pescadero Beach; sea bluffs Comment
  JEPS50659  Polygonum punctatum W. L. Jepson 1910-8-18 4159 San Mateo Butano Creek Comment
  CAS-BOT-BC76946  Polypodium californicum Ned Cahill 1974-4-30 232 San Mateo Chaparral near the intersection of Canada and Edgewood Roads, about 3 mi westward from Redwood City. Comment
  HSC1135  Polypodium californicum L. S. Rose 1964-2-6 64001 San Mateo Kings Mtn. 610 Comment
  JROH79  Polypodium californicum John H. Thomas 1972-4-1 16045 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH81  Polypodium californicum Lawrence J. Winship 1974-11-16 17 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UCSB17938  Polypodium californicum Schulte, John 1963-4-14 San Mateo NE Jasper Ridge, 3 mi SW of Stanford campus, between Santa Clara Valley and Santa Cruz Mtns. 152 Comment
  UC766795  Polypodium calirhiza R. F. Hoover 1941-2-12 4759 San Mateo La Honda Creek above La Honda Comment
  CAS-BOT-BC76856  Polypodium calirhiza Peter H. Raven 1951-2-18 2730 San Mateo San Bruno Mts. near Brisbane. Comment
  JEPS79496  Polypodium glycyrrhiza Edward Lee with A. Carter, E. Crum, and C. Belshaw 1936-1-26 1721 San Mateo 2.6 mi out of Woodside (e side Cahill Ridge, Kings Mt. Rd.) Comment
  UC42920  Polypodium scouleri J. Burtt Davy 1893-6-22 San Mateo top of Pilarcitos Canyon Comment
  CAS-BOT-BC167228  Polypodium scouleri Peter Rubtzoff 1977-11-24 9143 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  JROH5431  Polypogon interruptus John H. Thomas 1977-6-16 18812 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta in Searsville Lake. 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
  SJSU15938  Polypogon interruptus John Rawlings, Ken Hickman 2016-5-26 1809 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  CAS-BOT-BC233150  Polypogon interruptus L. R. Abrams 1927-7-15 12190 San Mateo Skyline Blvd back of South San Francisco Comment
  CAS-BOT-BC233159  Polypogon interruptus H. A. Dutton 1900-4-29 s.n. San Mateo Santa Cruz Peninsula Comment
  CAS-BOT-BC237345  Polypogon monspeliensis Ira L. Wiggins 1973-6-24 22019 San Mateo In bed of San Francisquito Creek, 50-60 m upstream from Pope Street Bridge, along boundary between San Mateo and Santa Clara counties Comment
  JROH5448  Polypogon monspeliensis John Hunter Thomas 1977-6-16 18785 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry lake bed Comment
  CAS-BOT-BC72151  Polystichum californicum W. R. Dudley 1905-6-19 s.n. San Mateo near Camp on Pescadero Creek, Santa Cruz Mountains Comment
  CAS-BOT-BC72219  Polystichum dudleyi W. R. Dudley 1902-1-1 s.n. San Mateo upper Gazos Creek Comment
  CAS-BOT-BC72222  Polystichum dudleyi W. R. Dudley 1905-6-19 s.n. San Mateo near Campon Pescadero Creek, Santa Cruz Mts. Comment
  SBBG51403  Polystichum dudleyi J. Doty 1969-3-27 609 San Mateo N side of St Hwy 84, ca. 50' W of Bridge No 35-165, ca. 6 mi E of St Hwy 1 Comment
  SEINET10665573 Image available Polystichum dudleyi William R. Dudley 1903-5-2 Dudley s.n. San Mateo Near bridge. Peters Creek. Santa Cruz Mts. Comment
  CAS-BOT-BC76648  Polystichum munitum Le Roy Abrams 1902-1-12 2256 San Mateo King's Mountain Comment
  CAS-BOT-BC76649  Polystichum munitum Roxana S. Ferris 1921-3-20 2108 San Mateo Pescadero Creek in canyon, 6 mi. from Pescadero Comment
  JROH3841  Populus trichocarpa John H. Thomas 1976-4-30 18099 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Dam. 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-BC267165  Potamogeton foliosus W. R. Dudley 1906-10-12 s.n. San Mateo Santa Cruz Mountain Peninsula. Mud Lakes, Coalmine Ridge, Pond 1 Comment
  CAS-BOT-BC453996  Potamogeton pectinatus H. L. Mason 1921-5-29 s.n. San Mateo On La Honda Grade near Woodruffs Hotel Comment
  CAS-BOT-BC454008  Potamogeton pectinatus Ira L. Wiggins 1935-6-29 8051 San Mateo Pescadero Creek, about 1 mile west of Pescadero Comment
  CAS-BOT-BC454052  Potamogeton pusillus subsp. pusillus Charles W. O'Brien 1964-8-31 s.n. San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC141938  Potentilla anserina subsp. pacifica Adele Lewis Grant 1917-5-6 941 San Mateo Pebble Beach at Pescadero Comment
  JEPS44182  Potentilla anserina subsp. pacifica Alice King 1908-7-25 San Mateo near San Francisco (Moss Beach); Moss Bearch Comment
  CAS-BOT-BC143305  Potentilla hickmanii Mrs. E. C. Sutliffe 1933-5-6 s.n. San Mateo Above Moss Beach Comment
  UC1952815  Potentilla hickmanii Barbara Ertter with Tony Morosco, Deb Hillyard, Richard Vonarb 1995-6-15 14257 San Mateo Martini Creek at south end of Devil's Slide, north-facing grassy hillside Comment
  JROH3378  Primula clevelandii var. patula John H. Thomas 1977-2-27 18472 San Mateo Jasper Ridge Biological Preserve, Stanford University. Westridge end of Jasper Ridge Comment
  CAS-BOT-BC516345  Prosartes hookeri C. F. Leithold 1894-8-13 s.n. San Mateo Devil's Canyon near Black Mt., Santa Cruz Peninsula Comment
  CAS-BOT-BC516360  Prosartes hookeri W. R. Bentley 1957-5-11 83 San Mateo La Honda Road, 1/2 mile east of La Honda 152 Comment
  JROH4671  Prosartes hookeri John H. Thomas 1969-4-20 14900 San Mateo Jasper Ridge Biological Preserve, Stanford University. Redwood area below dam Comment
  HSC24024  Prunella vulgaris subsp. lanceolata Mary Katherine Wicksten 1971-6-24 123 San Mateo Huddart Park, near entrance 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
  CAS-BOT-BC158174  Prunus emarginata Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Buckeye Canyon Comment
  UC311189  Prunus emarginata A. D. E. Elmer May, 1903 4523 San Mateo Searsville Lake Comment
  CAS-BOT-BC154495  Prunus ilicifolia Josephine D. Randall 1907-6-6 328 San Mateo Los Trancos Road near Stanford University Comment
  CAS-BOT-BC154501  Prunus ilicifolia Fred Hemphill 1973-5-14 809 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  RSA454145  Prunus ilicifolia L. M. Booth 1932-10-29 2119 San Mateo San Bruno Mountain. 61 Comment
  CAS-BOT-BC154652  Prunus subcordata Adoph Holme 1929-4-1 s.n. San Mateo Berenda Farm near Redwood City Comment
  CAS-BOT-BC154653  Prunus subcordata A. D. E. Elmer 1903-4-1 4533 San Mateo Portola Comment
  CAS-BOT-BC156354  Prunus virginiana var. demissa Phillip C. Wheeler 1965-5-12 s.n. San Mateo Sierra Point - near canyon Comment
  RSA681426  Prunus virginiana var. demissa Annuschka Deb, Lori Hubbart 1989-5-10 208 San Mateo Santa Cruz Mtns. Skyline Blvd S of Yerba Buena Nursery (YBN) Comment
  CAS-BOT-BC356871  Pseudognaphalium californicum D. E. Breedlove 1974-5-13 36234 San Mateo Slopes San Pedro Valley Park, Pacifica 152 Comment
  JROH752  Pseudognaphalium californicum D. D. Davis 1903-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  JROH755  Pseudognaphalium californicum John H. Thomas 1961-6-7 9534 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH760  Pseudognaphalium californicum D. E. Breedlove 1971-5-31 19386 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH764  Pseudognaphalium californicum John Hunter Thomas 1978-7-2 19245 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC306671  Pseudognaphalium californicum A. D. E. Elmer 1903-6-1 4291 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC356854  Pseudognaphalium californicum Walter Knight; Irja Knight 1965-3-15 1235 San Mateo North facing- Colma Canyon - San Bruno Mountain Comment
  CAS-BOT-BC356862  Pseudognaphalium californicum Barrett Anderson; Peter Rubtzoff 1988-4-22 3658 San Mateo San Bruno Mountain. Saddle area north of Guadalupe Canyon Parkway 275 Comment
  CAS-BOT-BC357120  Pseudognaphalium luteoalbum John Thomas Howell 1935-1-13 12578 San Mateo Lake San Andreas Comment
  JROH785  Pseudognaphalium luteoalbum Toni Corelli 2006-8-16 324 San Mateo Jasper Ridge Biological Preserve, Stanford University. South of Road B, below Dennis Martin marker site 70 Comment
  CAS-BOT-BC357117  Pseudognaphalium luteoalbum John H. Thomas 1976-5-2 12804 San Mateo San Bruno Mountain. About 1/4 mile up Market St. from new school in canyon Comment
  CAS-BOT-BC357129  Pseudognaphalium luteoalbum Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Crystal Cave Canyon Comment
  JROH782  Pseudognaphalium luteoalbum John Hunter Thomas 1980-11-27 20184 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1177367  Pseudognaphalium luteoalbum Peter H. Raven 1950-6-3 2273 San Mateo on the stand San Anderas Lake 121 Comment
  UCD135090  Pseudognaphalium luteoalbum J. D. Skoss 1948-7-25 44 San Mateo Montara. Comment
  CAS-BOT-BC357513  Pseudognaphalium ramosissimum J. H. Thomas 1958-8-1 7376 San Mateo Coastal bluffs just north of mouth of San Gregorio Creek 30 Comment
  JROH6200  Pseudognaphalium ramosissimum John Rawlings 2017-9-12 2295 San Mateo Jasper Ridge Biological Preserve, Stanford University; east bank of Bear Creek 82 Comment
  CAS-BOT-BC357512  Pseudognaphalium ramosissimum James McMurphy 1905-10-15 s.n. San Mateo Goat Ranch near Stanford University Comment
  JEPS34068  Pseudognaphalium stramineum L. M. Newlon 1921-7-30 248 San Mateo sea shore from Salada to Mussel Comment
  CAS-BOT-BC361571  Pseudognaphalium stramineum John H. Thomas 1963-5-20 10133 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC362032  Psilocarphus tenellus H. A. Dutton 1900-3-25 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  JROH1176  Psilocarphus tenellus John H. Thomas 1955-5-6 5001 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1177  Psilocarphus tenellus John H. Thomas 1956-4-7 5611 A San Mateo Jasper Ridge Biological Preserve, Stanford University; open serpentine area on top of ridge and adjacent slopes Comment
  JROH1180  Psilocarphus tenellus John H. Thomas 1963-5-12 10087 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1189  Psilocarphus tenellus John Hunter Thomas 1983-5-23 22251 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack side & low-flow crossing Comment
  UCSB17193  Psilocarphus tenellus Schulte, John 1963-4-28 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC72661  Pteridium aquilinum Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Wax Myrtle Ravine, Six-fern Rock Comment
  JROH3753  Pyracantha fortuneana J. H. Thomas 1960-6-8 8773 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near entrance to Searsville Lake Comment
  JROH3754  Pyracantha fortuneana J. H. Thomas 1960-6-8 8773 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near entrance to Searsville Lake Comment
  CAS-BOT-BC460839  Pyrola aphylla W. R. Dudley 1895-6-7 s.n. San Mateo Santa Cruz Peninsula: 4000 feet above Iverson's; Butano Ridge Comment
  RSA0082792  Pyrola aphylla A. D. E. Elmer 1903-06 4297 San Mateo Pescadero. Comment
  UC762364  Quercus X morehus R. F. Hoover 1941-2-12 4764 San Mateo nw of Saratoga Summit Comment
  CAS-BOT-BC104410  Quercus X subconvexa Lewis S. Rose 1964-9-5 64069 San Mateo Emerald Lake, W of Redwood City 243 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
  CAS-BOT-BC61709  Quercus agrifolia Lewis S. Rose 1964-3-23 64012 San Mateo Emerald Lake, w of Redwood City hills 121 Comment
  SEINET10962205  Quercus agrifolia Lewis S. Rose 1964-1 Rose 64012 San Mateo Emerald Lake, w. of Redwood City hills. 122 Comment
  SEINET12034175  Quercus agrifolia Unknown 1929-1 7299 San Mateo Kings Mtn Comment
  JEPS121556  Quercus chrysolepis Adam C. Schneider with C. Matt Guilliams and Will Freyman 2014-2-1 323 San Mateo Crystal Springs Reservoir, Pulgas Ridge, east of Crystal Springs Reservoir. Comment
  CAS-BOT-BC85954  Quercus douglasii John Thomas Howell 1926-10-23 2230 San Mateo Sand Hill Road W of Stanford University Comment
  JROH2472  Quercus douglasii John H. Thomas 1977-4-28 18566 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2473  Quercus douglasii John Hunter Thomas 1981-4-27 20505 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2474  Quercus douglasii John Hunter Thomas 1984-10-22 23487 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET13953265 Image available Quercus durata Lewis S. Rose 1950-1 50136 San Mateo Emerald Lake region; hills w. of Redwood City; alt. ca. 800 ft. 244 Comment
  CAS-BOT-BC94266  Quercus garryana Peter H. Raven 1949-6-13 824 San Mateo Belmont 121 Comment
  CAS-BOT-BC105391  Quercus kelloggii Gertrude Anthony 1904-4-23 s.n. San Mateo Los Troncos Road (Foothills or Valley) Comment
  JROH2511  Quercus kelloggii John Hunter Thomas 1988-4-6 24372 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road near dam Comment
  POM270206  Quercus kelloggii Lyman Benson 1932-8-1 4034 San Mateo Stanford University, Santa Cruz mountain range, Corte Madera Creek watershed. 122 Comment
  POM270254  Quercus kelloggii Lyman Benson 1930-5-3 21100 San Mateo Above Woodside, Mt. Range: Santa Cruz 366 Comment
  RSA118969  Quercus kelloggii John H. Thomas 1955-3-21 4694 San Mateo New La Honda Road between Searsville and Skyline Blvd., 1.8 miles from Searsville. East slope of the Santa Cruz Mountains. 274 Comment
  CAS-BOT-BC62888  Quercus lobata W. R. Dudley 1901-5-4 s.n. San Mateo Coal Mine Canyon Comment
  JROH2526  Quercus lobata John Hunter Thomas 1987-5-26 24322 San Mateo Jasper Ridge Biological Preserve, Stanford University; by old bridge to causeway Comment
  CAS-BOT-BC62889  Quercus lobata W. R. Dudley 1893-12-4 s.n. San Mateo By road Hopperville to Woodside Comment
  CAS-BOT-BC134783  Quercus wislizeni W. R. Dudley 1903-5-2 s.n. San Mateo Santa Cruz Peninsula. In front of Iverson's house near Peter Creek Comment
  CAS-BOT-BC134792  Quercus wislizeni J. H. Thomas 1949-11-5 1227 San Mateo Near airstrip along Butano Fire Break 518 Comment
  JROH2527  Quercus wislizeni var. frutescens W. R. Dudley 1903-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; east of Searsville Reservoir Comment
  JROH1199  Rafinesquia californica John H. Thomas 1965-5-12 10645 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM268423  Ranunculus californicus Arthur L. Cohen 1935-4-21 618 San Mateo Jasper Ridge, San Francisquito Creek. 122 Comment
  SD80176  Ranunculus californicus R. S. Woglum 1935-5-25 1156 San Mateo San Francisco area, Skyline Drive Comment
  SEINET5718555 Image available Ranunculus californicus Leslie Fenster 1964-1 10 San Mateo Ca. 2.5 miles up Polhemus Road. Comment
  UC750526  Ranunculus californicus Lewis S. Rose 1947-4-14 47094 San Mateo Skyline Blvd. e Sharps Park 152 Comment
  CAS-BOT-BC378534  Ranunculus californicus var. californicus J. H. Thomas 1949-3-29 s.n. San Mateo Kings Mountain Comment
  JROH3483  Ranunculus hebecarpus John Hunter Thomas 1981-4-5 20264 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  JROH3484  Ranunculus hebecarpus John Hunter Thomas 1981-4-21 20457 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3492  Ranunculus hebecarpus John Hunter Thomas 1988-4-7 24382 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3494  Ranunculus hebecarpus John Rawlings 2013-4-9 1158 San Mateo Jasper Ridge Biological Preserve, Stanford University; verge of Trail 11 through chaparral 144 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
  JROH3493  Ranunculus hebecarpus John Hunter Thomas 1991-4-11 24986 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grassy area near Rattlesnake Rocks Comment
  POM87782  Ranunculus hebecarpus L. R. Abrams 1901-03 s.n. San Mateo San Mateo Park Comment
  CAS-BOT-BC83421  Ranunculus lobbii Roxana S. Ferris 1918-3-31 758 San Mateo Coal Mine Ridge. Comment
  UC202813  Ranunculus lobbii A. D. E. Elmer April, 1903 4734 San Mateo Alpine School House Comment
  CAS-BOT-BC83426  Ranunculus lobbii W. R. Dudley 1964-4-22 s.n. San Mateo Santa Cruz Mountain Peninsula. Corte Madera Creek. Along New Grade Road. Comment
  UC162558  Ranunculus muricatus Harley P. Chandler 1901-3-15 798 San Mateo marshes w Colma; Region of San Francisco Bay Comment
  UC204177  Ranunculus orthorhynchus var. bloomeri A. D. E. Elmer June, 1903 4665 San Mateo San Pedro Comment
  JEPS67907  Ranunculus pusillus L. R. Heckard and J. H. Thomas 1972-4-16 2890 San Mateo ca 1 1/2 mi s Pulgas Water Temple (along old Canada road (private), sw of Upper Crystal Springs Reservoir) 121 Comment
  JROH3501  Ranunculus uncinatus John Rawlings 2013-4-16 1144 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 1. 79 Comment
  CAS-BOT-BC74339  Raphanus sativus Lous F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mile north of Pigeon Point and about 39 miles south of San Francisco. Comment
  CAS-BOT-BC74338  Raphanus sativus Ned Cahill 1974-4-30 214 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City Comment
  JROH5825  Rhamnus alaternus John Rawlings 2016-2-1 1662 San Mateo Jasper Ridge Biological Preserve, Stanford University; upper Trail 10 180 Comment
  CAS-BOT-BC55892  Rhamnus crocea Carl B. Wolf 1927-8-7 717 San Mateo At Schenkel's Camp back of Stanford University Campus. Los Trancos Creek Comment
  RSA178656  Rhamnus crocea John H. Thomas 1964-4-19 10311 a San Mateo Jasper Ridge Biological experimental area, 5 miles SW of Palo Alto. Comment
  UC518033  Ribes californicum Lewis S. Rose 1933-6-9 33226 San Mateo Belmont Comment
  CAS-BOT-BC93003  Ribes californicum var. californicum A. D. E. Elmer 1903-3-1 4683 San Mateo Portola. Comment
  CAS-BOT-BC93005  Ribes californicum var. californicum A. D. E. Elmer 1903-6-1 4787 San Mateo Lake San Andreas. Comment
  JROH2646  Ribes californicum var. californicum John Hunter Thomas 1982-2-19 20802 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Goya Gate Comment
  CAS-BOT-BC173081  Ribes divaricatum var. pubiflorum A. D. E. Elmer 1903-5-1 4511 San Mateo Searsville Lake Comment
  CAS-BOT-BC173091  Ribes divaricatum var. pubiflorum George Oberlander 1949-4-9 49 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC173465  Ribes malvaceum Marian L. Campbell 1920-5-2 s.n. San Mateo Los Altos Comment
  CAS-BOT-BC173477  Ribes malvaceum George Oberlander 1949-2-2 5 San Mateo Crest of Sweeney Ridge Comment
  SEINET3558789 Image available Ribes malvaceum Lewis S. Rose 1933-3-2 33006 San Mateo Belmont. Comment
  JROH2662  Ribes malvaceum var. malvaceum J. H. Thomas 1959-1-17 7513 San Mateo Jasper Ridge Biological Preserve, Stanford University 152 Comment
  JROH2663  Ribes malvaceum var. malvaceum John H. Thomas 1968-2-11 14146 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2664  Ribes malvaceum var. malvaceum John H. Thomas 1968-2-11 14146 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC212816  Ribes menziesii Roxana S. Ferris 1920-4-23 1950 San Mateo Strawberry Bend, El Corte de Madera Creek 121 Comment
  CAS-BOT-BC212826  Ribes menziesii Josephine M. Johnson 1918-8-1 s.n. San Mateo Unspecified Comment
  UC1177377  Ribes menziesii Peter H. Raven 1950-2-25 1377 San Mateo canyon above Brisbane; San Bruno Montains 182 Comment
  RSA0021755  Ribes menziesii var. leptosmum D. D. Keck 1932-3-6 1397 San Mateo Near La Honda, Santa Cruz Mountains. 200 Comment
  JROH5605  Ribes menziesii var. menziesii John Rawlings 2014-3-25 1211 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Trail 2 -- one plant upslope and one downslope -- about 400 yards west of Zoology Cabin site. 80 Comment
  CAS-BOT-BC144612  Ribes sanguineum var. glutinosum George Oberlander 1949-4-9 51 San Mateo Pilarcitos Canyon Comment
  JROH2682  Ribes sanguineum var. glutinosum John Hunter Thomas 1983-4-21 21645 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along causeway. Comment
  CAS-BOT-BC168726  Ribes victoris Eric Walther 1919-8-1 s.n. San Mateo Woodside Comment
  UC1127452  Ribes victoris R. C. Wilson 1935-7-17 242 San Mateo 2 mi se Pescadero; Santa Cruz Quadrangle Comment
  CAS-BOT-BC363084  Rigiopappus leptocladus C. F. Baker 1902-5-4 754 San Mateo Woodside Comment
  CAS-BOT-BC363094  Rigiopappus leptocladus Le Roy Abrams 1902-5-4 2401 San Mateo Woodside Comment
  JROH2208  Robinia pseudoacacia Ann Lambrecht 2007-9-5 32 San Mateo Jasper Ridge Biological Preserve, Stanford University; W bank of San Francisquito Creek, just downstream from confluence with Bear Creek Comment
  CDA9435  Romanzoffia californica D. G. Kelch 2002-5-13 s.n. San Mateo Pilarcitos Canyon, SF watershed. 0 Comment
  UC10721  Rorippa curvisiliqua Alice Eastwood 1896-4-1 San Mateo between Crystal Springs and Millbrae; bet. Crystal Springs and Millbrae Comment
  CAS-BOT-BC147622  Rosa californica Walter Knight; Irja Knight 1964-5-30 618 San Mateo Colma Canyon Comment
  CAS-BOT-BC147623  Rosa californica Alice B. Wright 1919-8-1 s.n. San Mateo Granada Comment
  CAS-BOT-BC147634  Rosa californica J. I. McMurphy 1906-4-30 64 San Mateo Woodside, Santa Cruz Mts. Comment
  CAS-BOT-BC146691  Rosa gymnocarpa Walter Knight; Irja Knight 1964-5-30 601 San Mateo Colma Canyon Comment
  CAS-BOT-BC389723  Rosa gymnocarpa M. K. Wicksten 1971-6-24 127 San Mateo Huddart Pk. Comment
  CAS-BOT-BC5991  Rosa piscatoria Adolph Daniel Edward Elmer 1903-5-1 4923 San Mateo On the Pescadero Creek, Iverson's Place Comment
  CAS-BOT-BC152838  Rubus parviflorus Alice Eastwood; John Thomas Howell 1939-7-9 7438 San Mateo Kings Mt. Comment
  CAS-BOT-BC152870  Rubus parviflorus Walter Knight; Irja Knight 1963-6-24 s.n. San Mateo Quarry 4 - San Bruno Mountain Comment
  POM140137  Rubus parviflorus var. velutinus Edward L. Greene 1902-1-15 245 San Mateo West side King's Mountain. 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
  SJSU10442  Rubus spectabilis C. R. Schafer 1967-5-7 San Mateo Gazos Cr, Gazos Cr Rd, Big Basin State Park Comment
Read comments
Dec 7 2010
  CAS-BOT-BC157072  Rubus ursinus L. R. Abrams 1914-10-14 5129 San Mateo [Tunitos Canon] Tunitas Canyon Comment
  CAS-BOT-BC157073  Rubus ursinus John H. Thomas 1963-5-20 10129 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC157084  Rubus ursinus C. F. B. 1902-1-15 246 San Mateo West side King's Mountain Comment
  CAS-BOT-BC157105  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6055 San Mateo Near Pescadero Comment
  JEPS25749  Rubus ursinus L. R. Heckard with Rimo Bacigalupi 1961-5-14 1234 San Mateo Canyon of Pilarcitos Creek about 0.5 mi below Stone Dam Reservoir; Canyon of Pilarcitos Creek below Stone Dam Reservoir 182 Comment
  CAS-BOT-BC422081  Rumex acetosella John H. Thomas 1964-4-30 10362 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  UC1537260  Rumex acetosella Gordon H. True Jr. 1936-4-5 393 San Mateo canyon between Pescadero and San Gregorio 304 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-BC422076  Rumex acetosella Javier Penalosa 1963-3-30 2704 San Mateo San Bruno Mountain. North of Randolph Ave. at Hillside Blvd. in SSF. 91 Comment
  CAS-BOT-BC422091  Rumex acetosella Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain. Slope above Hillside Blvd., South San Francisco. Comment
  RSA318548  Rumex acetosella Robert A. Norris 1984-5-9 4728 San Mateo Olivet Memorial Park throughway, Colma. Comment
  UC1101195  Rumex conglomeratus Malcolm A. Nobs and S. Galen Smith 1949-8-26 1581 San Mateo about 1 mi s Half Moon Bay Comment
  CAS-BOT-BC421824  Rumex conglomeratus Josephine D. Randall 1907-7-24 290 San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  CAS-BOT-BC421571  Rumex crassus John H. Thomas 1963-5-20 10130 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  UC1101234  Rumex crispus Malcolm A. Nobs and S. Galen Smith 1949-8-25 1572 San Mateo s of Rockaway Beach Comment
  CAS-BOT-BC433357  Rumex crispus Cherie Wetzel 1969-6-20 885 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  UC1537263  Rumex maritimus Gordon H. True Jr. 1937-10-16 847 San Mateo near Thornton Beach 15 Comment
  CAS-BOT-BC433997  Rumex salicifolius Josephine D. Randall 1907-7-23 291 San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  UC175931  Rumex salicifolius var. crassus W. A. Setchell 1913-10-19 San Mateo Farallone City Comment
  UCD81851  Rupertia physodes Alan T. Whittemore 1976-5-31 135 San Mateo Alpine Road, near east end of Corte Madera Creek Trail. Mixed evergreen forest. Sequoia in sheltered spots. Acer, Quercus and Alnus in open areas and by stream. Flowers past, originally purple. Trailing on forest floor. Foliage with somewhat unpleasant odor. Comment
  UC1738942  Rytidosperma caespitosum Glenn Clifton 1992-8-4 San Mateo between Whitehorse Creek and Cascade Creek Santa Cruz Mountains, Cascade Ranch State Park 15 Comment
  JROH1724  Sagina John Hunter Thomas 1984-4-8 23277 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1723  Sagina apetala Toni Corelli 2009-3-25 349 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road F along road 152 Comment
  JROH1722  Sagina apetala John Hunter Thomas 1983-4-21 21637 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1191409  Salicornia europaea Herbert L. Mason and Malcolm A. Nobs 1948-12-11 713 San Mateo Highway 101, near shore of bay, at Whipple Avenue intersection, Redwood City Redwood City Comment
  SEINET12002759  Salix bonplandiana McCallum 1933-1 s.n. San Mateo near Searsville Lake Comment
  HSC19942  Salix exigua var. hindsiana L. S. Rose 1965-3-8 65003 San Mateo Searsville Lake 122 Comment
  CAS-BOT-BC104051  Salix hindsiana Lewis S. Rose 1965-3-8 65003 San Mateo Searsville Lake 121 Comment
  UC492372  Salix lasiandra subsp. lasiandra Mrs. H. P. Bracelin 1932-7-4 640 San Mateo 4/10 mi e. Pescadero (Butano Creek Rd.) Comment
  JROH3875  Salix lasiandra var. lasiandra John H. Thomas 1975-5-2 17854 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC125374  Salix lasiandra var. lasiandra W. R. Dudley 1903-4-14 s.n. San Mateo Near Old Hotel, Searsville Comment
  CAS-BOT-BC176136  Salix lasiolepis Peter Rubtzoff 1976-3-14 8447 A San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  JEPS121519  Salix lasiolepis Adam C. Schneider with C. Matt Guilliams and Will Freyman 2014-2-1 322 San Mateo Crystal Springs Reservoir, Pulgas Ridge, east of Crystal Springs Reservoir. Comment
  POM223617  Salix lasiolepis S. S. Berry 1909-2-27 s.n. San Mateo Near Los Francos Creek. 46 Comment
  POM362648  Salix lasiolepis D. D. Keck 1932-3-6 1392 San Mateo Searsville Lake. Comment
  RSA119044  Salix lasiolepis L. S. Rose 1958-3-19 58012 San Mateo Princeton. 6 Comment
  RSA119073  Salix lasiolepis L. S. Rose 1958-3-19 58009 San Mateo Princeton. 6 Comment
  UC1303067  Salix lasiolepis L. R. Abrams 1915-3-13 5162 San Mateo near junction of San Francisquito and Los Trancos creeks (about 2 mi from Stanford University) Comment
  UC481898  Salix lasiolepis C. R. Ball and G. W. Hendry 1931-2-22 15 San Mateo in arroyo near San Gregorio Creek (100 m from ocean); San Gregorio Comment
  CAS-BOT-BC124479  Salix lasiolepis var. lasiolepis Walter Knight; Irja Knight 1987-10-16 6070 San Mateo San Bruno Mt., 100 yds from corner of Hillside Blvd. and Kearney St. Comment
  SBBG1241  Salix lucida subsp. lasiandra J. W. Congdon -Aug-1897 San Mateo Pescadero Comment
  UCR142837  Salix scouleriana L. S. Rose 1934-2-10 34025 San Mateo Coast Range, Skyline Blvd. 4 miles south of Kings Mountain 701 Comment
  CAS-BOT-BC129074  Salix scouleriana H. A. D. 1899-11-5 s.n. San Mateo Near Atkinson's Trail to La Honda Road - Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC126487  Salix sitchensis Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Colma Canyon Comment
  CAS-BOT-BC126489  Salix sitchensis A. D. E. Elmer 1903-3-1 4874 San Mateo Portola 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-BC126515  Salix sitchensis L. R. A. 1902-3-1 2272 San Mateo Kings Mountain 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-BC180791  Salsola soda William Anderson 1968-7-25 s.n. San Mateo In saline area at west approach of Bumbarton Bridge on south side of road. Comment
  SJSU6456  Salsola soda H. T. Harvey 1971-7-15 570 San Mateo Faber Tract, E Palo Alto Comment
  POM62858  Salvia columbariae Edward L. Greene 1902-4-6 s.n. San Mateo Crystal Springs Lake, San Mateo County. Comment
  SEINET7081588  Salvia columbariae A. G. Vestal 1963-7-12 s.n. San Mateo Jasper Ridge. Coordinate Datum: NAD27. UTM Zone 10, 568517mE, 4140222mN. Comment
  RSA681666  Salvia leucophylla Annuschka Deb 1989-4-14 102 San Mateo YBN Demonstration Garden, Woodside, CA Comment
  JEPS62786  Salvia spathacea W. L. Jepson 1921-4-3 9107 San Mateo Colma Canyon Comment
  RSA218031  Salvia spathacea Walter Knight, I. Knight 1965-3-15 1218 San Mateo Colma Canyon. San Bruno Mountain. Comment
  SEINET5570447  Salvia spathacea H. S. Gentry 1931-1 92 San Mateo Collected about 1 miles SE of Holy Cross Cemetery. Comment
  SJSU11396  Salvia spathacea G. I. Tourtlotte 1968-5-19 San Mateo S side of Guadalupe Canyon, San Bruno Mt Comment
  RSA0034073  Sambucus Peter Rubtzoff 1987-8-26 9840 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. Upper part of East Fork Colma Creek Canyon. Comment
  HSC23950  Sambucus nigra subsp. caerulea Mary Katherine Wicksten 1971-6-17 23 San Mateo Huddart Park, along Rd. near Redwood Shelter. Comment
  JROH1672  Sambucus nigra subsp. caerulea John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1673  Sambucus nigra subsp. caerulea John Hunter Thomas 1981-5-5 20544 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5887  Sambucus nigra subsp. caerulea Ruth Porter 1998-4-28 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC236453  Sambucus racemosa subsp. racemosa Walter Knight; Walter Knight 1963-6-24 s.n. San Mateo Quarry 4, San Bruno Mountain 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
  CDA3947  Sanguisorba minor subsp. muricata T. C. Fuller 1974-5-21 19992 San Mateo San Pedro Valley County Park, east above the end of Linda Mar Boulevard, Pacifica. 0 Comment
  JEPS185  Sanicula arctopoides W. L. Jepson 1922-3-19 9535 San Mateo Lake San Andreas Comment
  POM87764  Sanicula arctopoides L. R. Abrams 1902-4-13 2344 San Mateo San Andreas Lake. Comment
  OBI8787  Sanicula arctopoides Lewis S. Rose 1965-3-25 65012 San Mateo San Bruno Mts. N end 122 Comment
  CAS-BOT-BC223322  Sanicula bipinnatifida Margaret A. Barry 1938-3-6 230 San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC223323  Sanicula bipinnatifida A. D. E. Elmer 1903-4-1 4817 San Mateo Lake San Andreas Comment
  JROH321  Sanicula bipinnatifida Anne Hornby 1952-4-12 63 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  UC306543  Sanicula bipinnatifida A. D. E. Elmer April, 1903 San Mateo Lake San Andreas Comment
  JROH337  Sanicula crassicaulis John H. Thomas 1974-5-3 17243 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM288023  Sanicula crassicaulis Lyman Benson 1930-4-4 2024 San Mateo Stanford University, San Francisquito Creek 76 Comment
  RSA784607  Sanicula crassicaulis Peter Rubtzoff 1976-6-30 8712 San Mateo San Bruno Mountains: Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  POM283189  Satureja douglasii Lyman Benson 1931-5-10 s.n. San Mateo Santa Cruz Mountains; Above Woodside, on Kings Mountain Road. 457 Comment
  UC11756  Saxifraga californica Ivar Tidestrom 1894-3-22 San Mateo Comment
  JEPS8811  Scabiosa atropurpurea James G. Daly 540 San Mateo vicinity of San Gregorio Comment
  JROH356  Scandix pecten-veneris John Hunter Thomas 1981-5-14 20578 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD164422  Schedonorus arundinaceus Peter Rubtzoff 1977-6-21 9060 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction and northwest of Fog Forest. Comment
  CAS-BOT-BC111415  Schoenoplectus acutus var. occidentalis Rimo Bacigalupi 1922-5-25 s.n. San Mateo Emerald Lake, Redwood City Comment
  JROH4415  Schoenoplectus acutus var. occidentalis John Hunter Thomas 1981-7-12 20698 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA14775  Schoenoplectus maritimus L. S. Rose 1935-8-13 35565 San Mateo Salada 3 Comment
  RSA365994  Schoenoplectus pungens Edith A. Purer 1933-7-27 s.n. San Mateo 2 miles south of Pigeon Point. Comment
  CAS-BOT-BC111780  Schoenoplectus pungens Peter Rubtzoff; Elizabeth McClintock; P. Reeberg 1989-6-3 s.n. San Mateo At mouth of drainage culvert, PG&E marsh. 1 Comment
  UC1154039  Scirpus cernuus J. Clausen 1939-7-1 1745 San Mateo Ano Nuevo Point Ano Nuevo Point (in depressions in stabilized dunes) Comment
  JEPS73772  Scirpus pungens William S. Cooper 1925-5-28 4 San Mateo Salada; dunes 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
  POM169941  Scoliopus bigelovii C. F. Baker 1902-3-18 322 San Mateo Kings Mountain Comment
  RSA139348  Scoliopus bigelovii Lewis S. Rose 1964-2-6 64000 San Mateo Kings Mountain 610 Comment
  CAS-BOT-BC519001  Scoliopus bigelovii C. F. Leithold 1896-2-24 s. n. San Mateo Woodside Hills Comment
  CAS-BOT-BC519017  Scoliopus bigelovii Alice Eastwood 1922-3-1 s. n. San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC519020  Scoliopus bigelovii Alice Eastwood 1933-4-30 s. n. San Mateo Lake Pilarcitos on road out 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
  JROH4126  Scrophularia californica John H. Thomas 1975-6-5 17929 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near lowflow crossing Comment
  JROH1218  Senecio aronicoides John H. Thomas 1961-5-5 9219 San Mateo Jasper Ridge Biological Preserve, Stanford University; at NW end of ridge 152 Comment
  RSA152140  Senecio glomeratus John H. Thomas 1961-5-7 9275 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  JEPS37223  Senecio hydrophilus W. L. Jepson 1910-8-18 4162 San Mateo Butano Creek Comment
  CAS-BOT-BC364633  Senecio vulgaris Fred Hemphill 1973-4-8 625 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-BC80289  Sequoia sempervirens David D. Keck 1932-2-14 1368 San Mateo La Honda road, east slope of Coast Range above Searsville Lake 304 Comment
  CAS-BOT-BC85783  Sequoia sempervirens unspecified 1901-1-26 s.n. San Mateo Santa Cruz Peninsula, Coal Mine [Canon] Canyon Comment
  RSA15298  Sequoia sempervirens C. B. Wolf 1927-4-3 268 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  IRVC7617  Sequoia sempervirens P. W. Rundel 1962-4-12 1020 San Mateo 2 mi. E of Sky Line Hwy, on La Honda Road. Coast Range 610 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
  SEINET13289873 Image available Sequoia sempervirens D. W. Woodland 1974-1 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA33644  Sesbania punicea Robin Breckenridge 2010-7-2 PDR# 1313483 San Mateo East Palo Alto; Cooley Ave. 0 Comment
  CAS-BOT-BC243555  Setaria parviflora Paul Reeberg; Jake Sigg; Peter Rubtzoff 1991-8-10 s.n. San Mateo West side of P.G.&E. property, adjacent of P.G.&E. Marsh, San Bruno Mountains Comment
  JROH3829  Sherardia arvensis John H. Thomas 1957-4-16 6661 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent slopes Comment
  UCR101676  Sherardia arvensis George K. Helmkamp, E. A. Helmkamp 1998-5-16 3750 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  JROH3838  Sherardia arvensis John Hunter Thomas 1992-4-23 25154 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Rattlesnake Rocks and along trail to redwoods Comment
  CHSC109021  Sidalcea malviflora R. F. Thorne; Percy C. Everett 1963-6-9 32221 San Mateo Central Western; San Francisco Bay area; on top of San bruno Mountain on Kambhatka Point near the TV tower. Comment
  UC1084384  Sidalcea malviflora subsp. malviflora G. Thomas Robbins 1937-4-11 90 San Mateo along road to Woodside (above San Mateo); , rd to Woodside Comment
  UC1327248  Sidalcea malviflora subsp. malviflora John T. Doyen 1966-3-28 29 San Mateo near Radio Towers at top (San Bruno Mountain); , near Radio Towers at top Comment
  POM214348  Sidalcea malviflora subsp. malviflora I. L. Wiggins 1931-2-21 5097 San Mateo Near Pescadero Comment
  POM282904  Sidalcea malviflora subsp. malviflora Lyman Benson 1931-4-26 2760 San Mateo Behind Stanford U., Brookside Park, Santa Cruz mtn range. 244 Comment
  POM151335  Silene californica C. F. Baker 1903-6-30 33522 San Mateo Crystal Springs Comment
  CAS-BOT-BC166915  Silene gallica Peter Rubtzoff 1978-5-5 9164 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC386856  Silene gallica Paul Arnaud 1941-4-17 s.n. San Mateo Redwood City, Jefferson Avenue. Comment
  CAS-BOT-BC386861  Silene gallica G. Edelbrock 1975-3-21 022 San Mateo On ridge ar end of crocker Street; San bruno Mountain 152 Comment
  JROH5886  Silene gallica Ruth Porter 1998-5-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389198  Silene laciniata subsp. californica Brandegee No date on label s.n. San Mateo Crystal Springs Comment
  CAS-BOT-BC364857  Silybum marianum George Oberlander 1949-7-24 257 San Mateo San Francisco Watershed Reserve. On Sawyer Ridge Comment
  CAS-BOT-BC364859  Silybum marianum Ned Cahill 1974-7-14 356 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  POM273726B  Sisymbrium officinale Lyman Benson 1935-5-5 6533 San Mateo Lake Searsville. Stanford University. Santa Cruz Mtn range. S.F. Bay watershed. 152 Comment
  UCD138851  Sisyrinchium bellum R. S. Woglum 1935-5-24 1154 San Mateo San Francisco area, Skyline Drive south to Big Basin. Comment
  JEPS101208  Solanum americanum Dean W. Taylor 1989-8-1 10409 San Mateo Montara Mountain, saddle between North Peak and Montara Knob 518 Comment
  JROH6178  Solanum americanum John Rawlings 2017-10-3 2302 San Mateo Jasper Ridge Biological Preserve, Stanford University. Corte Madera Creek 111 Comment
  CDA19847  Solanum elaeagnifolium J. Beall 2002-4-26 PDR 065844 San Mateo San Francisco Bay Area; Beech St & RR tracks behind 1303 Main Street, Redwood City. 0 Comment
  UC1327228  Solanum furcatum John T. Doyen 1966-3-28 34 San Mateo San Bruno Mountains, near Radio Towers on top San Bruno Mountains Comment
  RSA784604  Solanum nodiflorum Peter Rubtzoff 1974-12-17 7942 San Mateo San Bruno Mountains. 'Saddle' area on N side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  SEINET12274849  Solanum sarachoides E. H. Graham 1931-1 6942 San Mateo Ano Nuevo Pt., S of San Francisco Comment
  POM62325  Solanum umbelliferum C. F. Baker 1902-1-15 234 San Mateo Kings Mountain. West side of King's Mountain. Comment
  CAS-BOT-BC58503  Solanum umbelliferum W. R. Dudley 1899-5-14 s.n. San Mateo Head of San Pedro Creek Comment
  JROH4195  Solanum umbelliferum John Hunter Thomas 1989-5-11 24732 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near bridge on causeway, bridge separates two parts of lake Comment
  UCSC007782  Solanum umbelliferum Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  RSA473644  Solidago californica E. A. Purer 1933-8-25 5523 San Mateo Spring Valley. Comment
  CAS-BOT-BC365537  Solidago elongata J. H. Thomas 1959-8-16 8065 San Mateo About 2 miles SW of Pescadero 60 Comment
  UC1070254  Solidago elongata T. Tyrrell 1928-9-26 12 San Mateo Pomponio Creek Santa Cruz Quad., , Plot #13 91 Comment
  CAS-BOT-BC365748  Solidago spathulata John H. Thomas 1961-5-12 9331 San Mateo San Bruno Mountain in northern part of county 396 Comment
  SD38299  Solidago spathulata Edith A. Purer 1932-7-18 San Mateo Comment
  UC1555381  Solidago spathulata J. A. DeBenedictis 1988-7-13 1543 San Mateo San Bruno Mountain Comment
  CAS-BOT-BC365936  Soliva sessilis J. H. Thomas 1954-6-11 4283 San Mateo About 0.25 miles north of Pigeon Point Light House Comment
  JROH1252  Soliva sessilis John Hunter Thomas 1989-5-9 24709 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1253  Soliva sessilis John Hunter Thomas 1989-5-11 24736 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC353414  Soliva sessilis Peter Rubtzoff 1976-5-22 8550 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction. East Fork Colma Creek canyon area, San Bruno Mountains. Comment
  JROH1254  Soliva sessilis John Hunter Thomas 1992-5-5 25212 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC374494  Sonchus asper Fred Hemphill 1973-5-14 821 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  RSA17933  Sparganium erectum subsp. stoloniferum Carl B. Wolf, Le Roy Abrams 1927-6-10 s.n. San Mateo Searsville Lake. Comment
  JROH5525  Sparganium eurycarpum var. eurycarpum John Hunter Thomas 1979-9-9 19724 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake. Comment
  JROH5586  Sparganium eurycarpum var. eurycarpum John Rawlings 2012-7-9 1201 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Near upper lake (west of Portola Rd.) adjacent to power line right-of-way. 106 Comment
  RSA121019  Spartina foliosa J. T. Howell 1956-11-22 31962 San Mateo Redwood City Comment
  RSA23203  Spartina foliosa I. L. Wiggins 1938-11-25 9213 San Mateo Along Dumbarton Bridge approach Comment
  UC625361  Spartina foliosa Ira L. Wiggins 1938-11-25 9213 San Mateo Dumbarton Bridge approach; Dumbarton Bridge Comment
  CAS-BOT-BC390010  Spergula arvensis Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  CAS-BOT-BC390206  Spergularia bocconi Elizabeth McClintock; Paul Reeberg 1988-6-7 s.n. San Mateo San Bruno Mountains. P.G.&E. Marsh Comment
  SJSU15797  Spergularia macrotheca var. macrotheca Toni Corelli 2010-6-1 677 San Mateo Wavecrest, west of Highway 1 in Half Moon Bay 23 Comment
  CDA24145  Spergularia marina Buchanan 1960-4-28 San Mateo Harbor Blvd. & Freeway, Redwood City. 0 Comment
  CAS-BOT-BC390697  Spergularia rubra George Oberlander 1949-6-25 229 San Mateo San Francisco Watershed Reserve Comment
  CAS-BOT-BC390699  Spergularia rubra Ira L. Wiggins 1974-7-27 22108 San Mateo Crest of northerly bank of San Francisquito Creek, opposite 1455 Woodland Avenue, Menlo Park Comment
  CAS-BOT-BC390700  Spergularia rubra John Thomas Howell 1955-5-5 s.n. San Mateo 700 block of Bromfield Road, Burlingame Comment
  HSC100920  Sphacele calycina E. L. Greene 1887-6-12 San Mateo San Mateo. Comment
  SD25965  Spiranthes romanzoffiana Edith A. Purer 1939-7-1 7928 C San Mateo Wet spot, sand dunes, Ano Nuevo Point. Comment
  CHSC60186  Stachys Jan M. Karaz 1979-5-22 35 San Mateo 500 ft w of Canada College Campus Drive, 1.5 mi w of Hwy 280. 5 Comment
  JEPS62956  Stachys ajugoides W. L. Jepson 1928-7-11 12938 San Mateo e Redwood City 3 Comment
  RSA131287  Stachys ajugoides W. R. Dudley 1894-05 s.n. San Mateo Woodside to Crystal Springs Reservoir 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
  POM204318  Stachys bullata I. L. Wiggins 1929-7-4 3783 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  UC100826  Stachys bullata J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  UCD125820  Stachys bullata G. K. Helmkamp; E. A. Helmkamp 2001-6-2 6771 San Mateo Central CA coast: Purissima Crk Road, E of Half Moon Bay at Purissima Crk, 3.2 miles E of CA-1. 243 Comment
  POM63312  Stachys bullata A. D. E. Elmer 1903-06 4417 San Mateo San Mateo Comment
  POM126367  Stachys chamissonis Katherine Brandegee 1913-08 s.n. San Mateo Tobin Comment
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Feb 9 2022
  UC306579  Stachys pycnantha A. D. E. Elmer June, 1903 4261 San Mateo Alpine School House Comment
  CAS-BOT-BC164650  Stachys rigida subsp. quercetorum Peter Rubtzoff 1975-10-11 8425 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JROH2895  Stachys rigida var. quercetorum John Hunter Thomas 1983-4-21 21642 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  NY380638  Stachys viarum A. A. Heller 1907-5-28 8581 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  CAS-BOT-BC398981  Stellaria nitens George Oberlander 1950-3-11 446 San Mateo Top of Sawyer Ridge Comment
  JROH5330  Stipa pulchra John H. Thomas 1955-5-6 4995 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small draw on south side of ridge. 182 Comment
  POM176887  Streptanthus albidus R. Patterson 1895-4-20 s.n. San Mateo San Juan Bautista(?) Hills trail to San Jose Comment
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Jun 18 2018
  RSA20106  Stuckenia pectinata I. L. Wiggins 1935-6-29 8051 San Mateo Pescadero Creek, about 1 mile west of Pescadero. Comment
  CAS-BOT-BC423011  Stylomecon heterophylla W. R. Dudley 1905-5-13 s.n. San Mateo Santa Cruz Mountain Peninsula. S.W. of San Mateo Comment
  CAS-BOT-BC237068  Symphoricarpos mollis Fred Hemphill 1973-4-15 672 San Mateo Area north of Malabar Road and Melendy Drive, San Carlos 207 Comment
  RSA152231  Symphoricarpos mollis I. L. Wiggins 1925-04 1651 San Mateo On Kings Mtn Rd 3/4 mile above Woodside. Comment
  SJSU5659  Symphyotrichum chilense L. S. Rose 1966-8-15 66083 San Mateo Pillar Point 1 Comment
  UC1119619  Symphyotrichum chilense T. Tyrrell 1928-9-11 5 San Mateo 2 mi s San Gregorio; Santa Cruz Quadrangle 91 Comment
  UC892754  Symphyotrichum chilense Lewis S. Rose 1933-10-14 33381 San Mateo Visitacion Valley, (dry hills) Vistacion Valley Comment
  CAS-BOT-BC99062  Symphyotrichum chilense Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain - Quarry 4 Comment
  CAS-BOT-BC99094  Symphyotrichum chilense W. R. Dudley 1899-11-29 s.n. San Mateo Near Alpine School House, Black Mt. - Santa Cruz Peninsula Comment
  RSA417609  Symphyotrichum chilense D. D. Keck 1931-9-27 1274 San Mateo Dumbarton bridge Comment
  CAS-BOT-BC99388  Symphyotrichum subspicatum Gordon H. True 1936-6-14 507 San Mateo Canyon n. of Salada Beach Comment
  CAS-BOT-BC99389  Symphyotrichum subspicatum E. H. Quayle 1920-5-18 242 San Mateo Half Moon Bay, Santa Cruz Mountain Peninsula Comment
  UC1927817  Symphyotrichum subspicatum David Keil 1988-11-19 21201 San Mateo Highway 1, south of Half Moon Bay Comment
  CAS-BOT-BC98362  Symphyotrichum subulatum var. parviflorum John H. Thomas 1968-10-6 14851 San Mateo Vicinity of railroad tracks and Dumbarton Bridge causeway entrance. East of Palo Alto. Comment
  UC20515  Taraxia ovata J. Burtt Davy 1895-4-20 1018 San Mateo Millbrae Comment
  UC375428  Taraxia ovata R. L. Pendleton 1909-4-3 1342 San Mateo along creek 4 mi back of Stanford University; Los Tronchos Creek 144 Comment
  JROH5751  Taraxia ovata L. Nordby 1982-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Searsville Lab on the west side of Searsville Lake. Comment
  JROH371  Tauschia hartwegii Carol Zabel 1989-3-4 4 San Mateo Jasper Ridge Biological Preserve, Stanford University; diagonal trail between Trail 14 and Trail 8, by steps Comment
  RSA119855  Tauschia kelloggii W. R. Dudley 1892-5-14 s.n. San Mateo Pass, near head of Calera Valley. Comment
  CAS-BOT-BC447468  Tellima grandiflora A. D. E. Elmer 1903-6-1 4702 San Mateo Pescadero Comment
  CAS-BOT-BC447480  Tellima grandiflora John H. Thomas 1961-5-14 9363 San Mateo Vicinity of pilarcitos Stone Dam on Pilarcitas Creek. San Francisco Watershed reserve. 152 Comment
  UCR141449  Tellima grandiflora June Latting 1975-6-8 s.n. San Mateo Santa Cruz Mtns., Pescasero Road, 8 miles east of highway Calif. Hwy 1 122 Comment
  UCD39286  Tetragonia expansa B. Crampton 1962-6-11 6517 San Mateo Pacifica, Rockaway Beach, State Hwy. 1. Comment
  CAS-BOT-BC438269  Tetragonia tetragonoides Robert Robertson 1954-4-14 74 San Mateo N.W. of Palo Alto Yacht Club. 3 Comment
  CAS-BOT-BC399838  Thalictrum polycarpum Margaret A. Barry 1938-4-21 248 San Mateo By Los Trancos Creek near Coal Mine Ridge Comment
  CAS-BOT-BC399847  Thalictrum polycarpum Peter Rubtzoff 1953-5-14 1350 B San Mateo Pilarcitos Creek Canyon 1 to 2 miles downstream from Pilarcitos Lake Comment
  CAS-BOT-BC202036  Thinopyrum ponticum Elizabeth McClintock; Paul Reeberg 1989-8-19 s.n. San Mateo San Bruno Mountains. Along Bayshore Boulevard 15 Comment
  SEINET3153451  Thymus vulgaris Unknown 1870-4-10 sn San Mateo Mr. Saulmann's garden at San Mateo Comment
  JROH1598  Thysanocarpus curvipes John Hunter Thomas 1982-4-28 20870 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1616  Thysanocarpus curvipes John Hunter Thomas 1988-4-6 24368 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH1617  Thysanocarpus curvipes John Hunter Thomas 1989-4-8 24625 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH1588  Thysanocarpus curvipes subsp. curvipes John Hunter Thomas 1978-4-8 19059 D San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  CAS-BOT-BC447579  Tiarella trifoliata var. unifoliata D. E. Breedlove 1973-9-26 35562 San Mateo Pescadero Creek County Park 365 Comment
  JROH383  Torilis nodosa John Hunter Thomas 1980-5-13 19966 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH388  Torilis nodosa John Hunter Thomas 1981-5-25 20622 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC81496  Torreya californica W. R. D. 1894-3-24 s.n. San Mateo near fork of Alpine and San Gregorio road, La Honda Comment
  RSA45320  Torreya californica I. L. Wiggins 1945-5-5 11160 San Mateo Along La Honda Creek about 1 mile above La Honda 152 Comment
  JROH183  Toxicodendron diversilobum John H. Thomas 1964-4-4 10295 San Mateo Jasper Ridge Biological Preserve, Stanford University 152 Comment
  JROH186  Toxicodendron diversilobum John H. Thomas 1974-10-26 17625 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR253355  Tragopogon porrifolius A. C. Sanders 2014-8-3 41235 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-BC377135  Tragopogon porrifolius J. H. Thomas 1958-10-28 7493 San Mateo Near intersection of Bayshore highway and Main Street. Redwood City Comment
  RSA116711  Trientalis latifolia W. R. Dudley 1903-5-1 s.n. San Mateo in Redwoods on road beyond near Petters and Pescadeno Creek Comment
  RSA116716  Trientalis latifolia Josephine Randall 1908-5-20 s.n. San Mateo Iversons near Peter Creek Comment
  RSA116747  Trientalis latifolia Josephine Randall 1907-4-27 s.n. San Mateo KingsM Mt. Comment
  UC16489  Trifolium albopurpureum var. dichotomum J. Burtt Davy 1893-6-17 798 San Mateo Belmont Comment
  RSA120983  Trifolium amoenum Paul R. Hichborn 1950-4-25 s.n. San Mateo San Francisquito Creek near Searsville Lake; Santa Cruz Mountain Peninsula Comment
  UC311113  Trifolium barbigerum A. D. E. Elmer Apr, 1903 4859 San Mateo Lake San Andreas 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
  JROH2248  Trifolium bifidum var. decipiens G. C. Kimber & Lucile Roush 1918-5-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2261  Trifolium depauperatum var. amplectens John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC485415  Trifolium depauperatum var. amplectens R. L. Pendleton 1907-4-20 628 a San Mateo Colma 121 Comment
  UC630933  Trifolium depauperatum var. depauperatum P. B. Kennedy 1928-5-2 10098 San Mateo e Daly city (hills) Comment
  JROH2231  Trifolium dichotomum John H. Thomas 1966-4-22 11574 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU7635  Trifolium dubium D. D. Kohler 1963-4-11 San Mateo by Skyline Blvd, 3 mi N of San Bruno Comment
  CHSC39833  Trifolium fucatum Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  JROH2281  Trifolium fucatum Marie Tifft 1952-5-10 42 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  UC16515  Trifolium fucatum J. Burtt Davy 1893-6-17 769 San Mateo Belmont Comment
  UC866776  Trifolium fucatum Alice Eastwood 1915-6-13 4720 San Mateo Granada Comment
  UCSC005462  Trifolium gracilentum Randall Morgan 1995-6-6 2728 San Mateo Bean Hollow State Beach Comment
  SJSU15444  Trifolium gracilentum var. gracilentum Toni Corelli 2010-5-13 603 San Mateo Pedro Point Headlands, Pacifica, CA, along South Ridge Trail 180 Comment
  JROH2329  Trifolium hirtum John Hunter Thomas 1986-6-3 24077 San Mateo Jasper Ridge Biological Preserve, Stanford University; old beach Comment
  SBBG39488  Trifolium hirtum L. S. Rose 1970-4-23 San Mateo Skyline Blvd, W of San Mateo 121 Comment
  UC630795  Trifolium macraei Charles Piper Smith 1908-4-26 1420 San Mateo se cemeteries; base of San Bruno Mtn Comment
  JROH2338  Trifolium microcephalum John H. Thomas 1956-4-7 5607 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  SJSU15437  Trifolium microcephalum Toni Corelli 2010-5-13 606 San Mateo Pedro Point Headlands, Pacifica, CA, along South Ridge Trail 180 Comment
  UC1130082  Trifolium microdon H. S. Yates 1935-5-8 5205 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. 579 Comment
  SEINET12157236  Trifolium microdon Unknown 1932-1 9121 San Mateo Bluffs Half Moon Bay Comment
  UCD109276  Trifolium oliganthum R. Tofsrud 1952-1 2 San Mateo Near Foster. Comment
  JROH2368  Trifolium subterraneum John Hunter Thomas 1992-5-5 25216 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam and vicinity Comment
  UC165501  Trifolium variegatum var. melananthum J. Burtt Davy 1895-1 1017 San Mateo Pilarcitos Comment
  POM226855  Trifolium variegatum var. melananthum L. R. Abrams 1914-4-2 5077 San Mateo Menlo Heights 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
  JROH2398  Trifolium willdenovii John H. Thomas 1967-5-10 12844 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2416  Trifolium willdenovii John Hunter Thomas 1991-5-2 25022 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM20398  Trifolium willdenovii A. D. E. Elmer 1903-05 4716 San Mateo Belmont. Comment
  CDA28299  Trifolium willdenovii T. C. Fuller 1967-6-13 15942 San Mateo Half Moon Bay Harbor, north edge of the town of Half Moon Bay. 0 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
  UC204176  Trifolium wormskioldii A. D. E. Elmer May 1903 4644 San Mateo Lake San Andreas Comment
  UC311114  Trifolium wormskioldii A. D. E. Elmer April, 1903 4858 San Mateo Lake San Andreas Comment
  CHSC25136  Trillium chloropetalum R. N. Bowman 1971-4-5 4 San Mateo Ca. 1.6 mi. E. of Hwy. 1 on Gazos Creek rd., ca. 5 yards down wooded embankment along S. side of rd. 18 Comment
  JROH4721  Trillium chloropetalum John H. Thomas 1958-2-15 6981 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC4021  Trillium chloropetalum Michener and Bioletti Mar 1893 4 San Mateo near Colma Comment
  POM170078  Trillium chloropetalum var. chloropetalum C. F. Baker 1902-3-30 431 San Mateo Crystal Springs Lake. Comment
  RSA3927  Trillium chloropetalum var. chloropetalum W. R. Dudley 1900-3-18 s.n. San Mateo Below San Andreas Dam. Comment
  CAS-BOT-BC521065  Trillium chloropetalum var. giganteum Walter & Irja Knight 1965-3-21 996 San Mateo San Bruno Mountain Comment
  RSA378201  Trillium chloropetalum var. giganteum D. D. Keck 1932-3-6 1394 San Mateo La Honda road above Searsville Lake, Santa Cruz Mountains. Comment
  CAS-BOT-BC133436  Trillium ovatum Eric Walther 1920-5-9 s.n. San Mateo Woodside Comment
  CAS-BOT-BC133443  Trillium ovatum D. T. Fullaway 1908-4-1 s.n. San Mateo King's Mountain Comment
  JEPS55673  Trillium ovatum W. Roderick 1961-1-15 San Mateo s.e. Half Moon Bay 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
  RSA378212  Trillium ovatum J. Doty 1969-3-26 601 San Mateo State Highway 34, 6 miles north of its junction with State Highway 38. Comment
  JROH1649  Triodanis biflora John Hunter Thomas 1979-6-12 19586 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5577548  Triphysaria eriantha H. S. Gentry 1931-1 73 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  UC204180  Triphysaria eriantha subsp. rosea A. D. E. Elmer May, 1903 4670 San Mateo South San Francisco Comment
  CAS-BOT-BC238572  Triphysaria floribunda C. F. B. 1902-3-22 346 San Mateo South San Francisco Comment
  CAS-BOT-BC238573  Triphysaria floribunda A. D. E. Elmer 1903-4-1 4522 San Mateo South San Francisco Comment
  JROH4135  Triphysaria pusilla John H. Thomas 1966-4-6 11549 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR139356  Triphysaria pusilla David D. Keck 1932-5-11 1766 San Mateo San Francisco Bay Region, 2 mi north of San Gregorio 122 Comment
  UCD123415  Triphysaria versicolor subsp. faucibarbata H. A. Borthwick 1925-6-15 1926 San Mateo Santa Cruz Road, Pescadero. Comment
  JEPS10445  Triphysaria versicolor subsp. versicolor Adele Lewis Grant 1917-5-6 934 San Mateo Pebble Beach 3 Comment
  UC1073370  Triphysaria versicolor subsp. versicolor George B. Rossbach 1955-5-29 482 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC200079  Trisetum canescens George Oberlander 1950-5-28 989 San Mateo San Francisco Watershed Reserve, south boundary Comment
  JROH4740  Triteleia hyacinthina John Hunter Thomas 1978-5-12 19201 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM196555  Triteleia ixioides subsp. ixioides W. R. Dudley 1894-5-3 s.n. San Mateo Santa Cruz Peninsula, near San Carlos Comment
  SEINET10833773  Triteleia ixioides subsp. ixioides Ernest A. McGregor McGregor s.n. 1907 San Mateo Plants of the Santa Cruz Mountain Peninsula. Portola Valley. Comment
  JROH4749  Triteleia laxa John H. Thomas 1974-4-13 17147 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18458  Triteleia laxa Carl B. Wolf 1927-6-29 549 San Mateo South of Pebble Beach near Pescadero Comment
  CAS-BOT-BC74053  Turritis glabra John F. Emmel 1971-4-24 344 San Mateo 0.25 mile southwest of Natalie M. Lipman School, south edge of Guadalupe Valley, west edge of Brisbane. 60 Comment
  CAS-BOT-BC74055  Turritis glabra Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain at Flower Garden adjacent to April Brook. Comment
  JROH5536  Typha angustifolia John Hunter Thomas 1977-6-16 18807 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta in Searsville Lake. Comment
  JROH5537  Typha angustifolia M. Whitley 1990-5-28 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By west edge of dam. Comment
  UC241789  Typha latifolia Malcolm A. Nobs and S. Galen Smith 1949-8-25 1554 San Mateo Sharp Park; along ocean coast, Sharp Park Comment
  CAS-BOT-BC213097  Ulex europaeus J. H. Thomas 1960-11-11 8924 San Mateo Along Skyline Drive about 0.2 mi. N. of Pulgas water temple. 91 Comment
  SJSU2612  Ulex europaeus D. M. Dobrinen 1966-4-6 27 San Mateo N end Crystal Springs Lakes Comment
  CAS-BOT-BC213099  Ulex europaeus Roxana S. Ferris 1921-3-21 2119 San Mateo In ravine at edge of ocean; New Year's Point Comment
  CAS-BOT-BC91230  Umbellularia californica Peter H. Raven 1964-2-16 18743 San Mateo Just south of Lake San Andreas. 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
  JROH137  Umbellularia californica John H. Thomas 1968-2-11 14143 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM272291  Umbellularia californica Lyman Benson 1929-3-4 984 San Mateo Hill east of Lake Searsville. Comment
  RSA623612  Umbellularia californica C. B. Wolf 1928-2-11 1471 San Mateo East base of Kings Mountain Road.. . Comment
  CAS-BOT-BC404023  Urtica dioica subsp. holosericea Mrs. E. C. Sutliffe 1933-7-12 s.n. San Mateo Alpine Creek Road, Skyline Blvd. to La Honda Comment
  CAS-BOT-BC199347  Vaccinium ovatum David D. Keck 1933-5-11 2302 San Mateo Montara Summit, Montara Mountain Comment
  CAS-BOT-BC199358  Vaccinium ovatum A. D. E. Elmer 1903-4-1 4561 San Mateo King's [Kings] Mountain Comment
  CAS-BOT-BC199365  Vaccinium ovatum Elizabeth McClintock 1966-5-1 s.n. San Mateo Kamchatka Point Comment
  POM176866  Vaccinium ovatum James I. McMurphy 1906-5-20 79 San Mateo Kings Mountain, Santa Cruz Mts. 457 Comment
  RSA681684  Vaccinium ovatum Annuschka Deb 1989-3-31 63 San Mateo Woodside. Comment
  SBBG33994  Vaccinium ovatum L. S. Rose 1969-3-27 San Mateo Kings Mtn Rd, 4 mi W of Woodside 304 Comment
  UCD118098  Vaccinium ovatum Lewis S. Rose 1964-3-14 64005 San Mateo Kings Mountain. 609 Comment
  UC141744  Vaccinium parvifolium Dr. E. B. Copeland 1903-5-9 3249 San Mateo Big Basin of Pescadero Creek Comment
  UC22218  Vaccinium parvifolium W. J. V. Osterhout Jul 1899 San Mateo Near Pescadero Comment
  CAS-BOT-BC76137  Vancouveria planipetala A. D. E. Elmer 1903-5-1 4922 San Mateo On the Pescadero Creek, Iverson's Place. Comment
  CDA19090  Veronica americana J. Beall 2001-4-24 PDR 064439 San Mateo Belmont Creek at Old Country Rd., Belmont. 0 Comment
  UC1084414  Vicia americana var. americana G. Thomas Robbins 1937-4-11 104 San Mateo near Redwood City Comment
  POM278056  Vicia americana var. americana Lyman D. Benson 1935-5-5 6530 San Mateo Lake Searsville. 152 Comment
  SD2655  Vicia cracca Ulysses S. Grant IV 1925-6-4 San Mateo Burlingame Comment
  CHSC23153  Vicia gigantea Robert A. Schlising 1963-2-23 2435 San Mateo Coast Range. 21 miles north of Davenport, along Highway 1. Comment
  CHSC27883  Vicia gigantea Susan Perkins 1978-3-24 14 San Mateo Stage Road, 4 mi. s of San Gregorio, 2.5 mi n of Pescadeero, ca. 8 mi sw of La Honda. 60 Comment
  UCR123141  Vicia sativa subsp. sativa George K. Helmkamp, E. A. Helmkamp 2001-6-2 6765 San Mateo Central Coast, Pillar Point Harbor, about 4 miles north of Half Moon Bay 6 Comment
  JROH2451  Vicia sativa subsp. sativa John Hunter Thomas 1983-4-3 21311 San Mateo Jasper Ridge Biological Preserve, Stanford University; old beach area Comment
  CAS-BOT-BC264045  Viola adunca Miss E. Cannon 1899-4-21 s.n. San Mateo E of Colma Comment
  UCD110660  Viola adunca subsp. adunca A. A. Beetle 1939-3-31 1777 San Mateo Daly City. Comment
  HSC23975  Viola glabella Mary Katherine Wicksten 1971-7-8 163 San Mateo Huddart Park, Squeeler Creek Comment
  RSA130982  Viola ocellata Helen M. Edwards 1917-3-8 s.n. San Mateo Woodside. Comment