Search Results — 2000 specimen records retrieved (1326 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/).
 Records are made available under the CCH Data Use Terms.
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UCSC004916  Abronia latifolia Monica Larenas 1985-6-1 20 San Mateo Hwy 1, 0.5 mi S of Pescadero State Beach Comment
  CAS-BOT-BC233753  Abronia umbellata L. R. Abrams 1909-8-2 4276 San Mateo Pebble Beach Hotel, Pescadero, Santa Cruz Peninsula Comment
  SEINET3892509  Acacia cyclops R. L. Johnson 2012-4-6 12 -001 San Mateo Half Moon Bay, roadside on Redondo Beach Rd.; 0 25 Comment
  CAS-BOT-BC177044  Acacia dealbata Ned Cahill 1974-4-30 238 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  SJSU948  Acacia longifolia C. P. Hoyt 1948-2-28 San Mateo residence, San Mateo Comment
  UC1327251  Acaena pinnatifida var. californica John T. Doyen 1966-3-28 35 San Mateo San Bruno Mountains, near Radio Towers on top. Comment
  CAS-BOT-BC451114  Acaena pinnatifida var. californica James McMurphy 1909-5-25 s.n. San Mateo Grade west of Crystal Springs Comment
  CAS-BOT-BC219604  Acanthomintha duttonii Harry A. Dutton; Miss. H. A. Walker 1915-5-26 3819 San Mateo Near the Menlo Golf Club Comment
  RSA0076538  Acanthomintha obovata subsp. duttonii L. R. Abrams 1920-6-1 7500 San Mateo Back of Redwood City. Comment
  RSA0076539  Acanthomintha obovata subsp. duttonii Paul R. Hichborn 1920-6-1 s.n. San Mateo Back of Redwood City. Comment
  CAS-BOT-BC333295  Acer macrophyllum Margaret A. Barry 1938-4-21 236 San Mateo Los Trancos Creek near Coal Mine Ridge 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
  RSA15275  Acer macrophyllum Carl B. Wolf 1927-4-3 241 San Mateo 1 mile above La Honda. Santa Cruz Mountains. Comment
  SD41293  Acer macrophyllum Delzie Demaree 1932-4-9 8984 San Mateo Streams near Gov. Rolph Estate Comment
  SEINET7898512  Acer saccharum D. Nyquist 1960-4-18 44 San Mateo San Francisco. Comment
Read comments Jan 7 2022
  CAS-BOT-BC21577  Achillea millefolium Ned Cahill 1974-4-18 123 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC21581  Achillea millefolium Ned Cahill 1974-4-19 144 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC21596  Achillea millefolium John H. Thomas 1967-5-2 12801 San Mateo San Bruno Mountain. About 1/4 mile up Market St. from new school in canyon. Comment
  CAS-BOT-BC21597  Achillea millefolium John H. Thomas 1961-5-7 9311 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH447  Achillea millefolium John Hunter Thomas 1980-5-8 19954 San Mateo Jasper Ridge Biological Preserve, Stanford University 124 Comment
  JROH452  Achillea millefolium John Hunter Thomas 1987-5-5 24246 San Mateo Jasper Ridge Biological Preserve, Stanford University 113 Comment
  CAS-BOT-BC21576  Achillea millefolium David D. Keck 1939-7-1 5011 San Mateo 3 mi. S. of Pescadero, 1 mile from the ocean 60 Comment
  UCSC004912  Achillea millefolium Monica Larenas 1985-6-1 16 San Mateo Hwy 92, summit near intersection with Skyline Blvd Comment
  RSA176744  Achyrachaena mollis John H. Thomas 1963-5-12 10079 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  SD2527  Acmispon americanus Ulysses S. Grant IV Jun 1925 San Mateo Burlingame Comment
  JROH2054  Acmispon americanus var. americanus John H. Thomas 1967-6-1 12954 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2059  Acmispon americanus var. americanus John H. Thomas 1974-10-26 17632 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2062  Acmispon americanus var. americanus John Hunter Thomas 1983-5-23 22245 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack side and low-flow crossing Comment
  JROH2064  Acmispon americanus var. americanus Carol Zabel 1989-9-4 37 San Mateo Jasper Ridge Biological Preserve, Stanford University; "Assembly area" by old docent center Comment
  JROH2052  Acmispon brachycarpus Toni Corelli 2005-6-8 293 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11 Comment
  JROH2069  Acmispon glaber var. glaber John H. Thomas 1970-7-5 15662 San Mateo Jasper Ridge Biological Preserve, Stanford University 152 Comment
  CHSC39809  Acmispon wrangelianus Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  JROH2091  Acmispon wrangelianus John H. Thomas 1961-4-8 9075 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2093  Acmispon wrangelianus John H. Thomas 1966-4-24 11578 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15213  Acmispon wrangelianus Toni Corelli 2012-4-13 800 San Mateo Pigeon Point Light Station, north of light station, bluff top west of Pigeon Point Road 8 Comment
  UC2049899  Acmispon wrangelianus H. W. Johansen 1955-4-23 77 San Mateo Crystal Springs Road, 2 miles W of San Mateo. Comment
  JROH3400  Actaea rubra Carol Zabel 1989-8-27 32 San Mateo Jasper Ridge Biological Preserve, Stanford University. From the "redwood circle" on Trail 1, go east 10-12 m. South side of trail just before a 1-m-high rock. Comment
  CAS-BOT-BC391676  Actaea rubra W. R. Dudley 1895-9-15 s.n. San Mateo Santa Cruz Peninsula. El Corte Madera, Lumber Camp Comment
  CAS-BOT-BC391680  Actaea rubra George Oberlander 1949-6-25 237 San Mateo San Francisco Watershed Reserve. Near San Andreas Lake Comment
  CAS-BOT-BC139959  Adenostoma fasciculatum George Oberlander 1949-6-25 234 San Mateo Sawyer Ridge Comment
  SEINET191645  Adenostoma fasciculatum L. S. Rose 1941-6-12 41270 San Mateo Emerald Lake hills west of Redwood City. 120 Comment
  UC859034  Adenostoma fasciculatum Lewis S. Rose 1932-5-22 32259 San Mateo Belmont Comment
  JROH86  Adiantum aleuticum Lawrence J. Winship 1974-11-16 14 San Mateo Jasper Ridge Biological Preserve, Stanford University. Among wet rocks below Searsville dam. Comment
  JROH92  Adiantum jordanii John Hunter Thomas 1981-4-5 20285 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek Comment
  RSA131267  Aesculus californica Deborah Hichborn 1920-5-20 s.n. San Mateo San Francisquito Creek. Santa Cruz Mountain Peninsula. Comment
  RSA292572  Agoseris grandiflora Lyman Benson 1935-5-12 6553 San Mateo Menlo Park 30 Comment
  JROH482  Agoseris grandiflora var. grandiflora John H. Thomas 1971-5-30 15976 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH483  Agoseris grandiflora var. grandiflora John H. Thomas 1974-5-29 17401 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC23019  Agoseris grandiflora var. grandiflora W. R. Dudley 1899-5-14 s.n. San Mateo Fields southwest of Baden Comment
  JROH494  Agoseris heterophylla John Hunter Thomas 1986-5-6 24015 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM292575  Agoseris heterophylla Arthur L. Cohen 1935-4-21 626 San Mateo Jasper Ridge 122 Comment
  POM52211  Agoseris heterophylla C. F. Baker 1904-04 661 San Mateo Near Stanford University Comment
  SEINET11855015  Agoseris heterophylla Unknown 1933-1 8434 San Mateo Redwood City Comment
  CAS-BOT-BC15235  Agoseris hirsuta David D. Keck 1932-5-6 1461 San Mateo near Belmont Comment
  CAS-BOT-BC15249  Agoseris hirsuta John Thomas Howell 1926-4-24 1925 San Mateo Daly City Comment
  CAS-BOT-BC15232  Agoseris hirsuta W. R. Dudley 1893-5-1 s.n. San Mateo North of San Bruno Comment
  SEINET10661050  Agropyron repens P. Rubtzoff 1977-6-21 Rubtzoff 9055 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Westernmost part of the area on slope across fence. Comment
  UC1100106  Agrostis alba Malcolm A. Nobs and S. Galen Smith 1949-8-25 1550 San Mateo marshes Sharp Park Comment
  JROH4772  Agrostis avenacea John Hunter Thomas 1980-9-27 20197 San Mateo Jasper Ridge Biological Preserve, Stanford University; old bathing beach area in weeds near water's edge 120 Comment
  JROH4774  Agrostis avenacea John Hunter Thomas 1982-6-7 21032 San Mateo Jasper Ridge Biological Preserve, Stanford University 108 Comment
  CAS-BOT-BC127481  Agrostis capillaris John Thomas Howell 1975-9-25 51509 San Mateo San Bruno Mountain. Comment
  JROH4779  Agrostis capillaris John Rawlings 2009-6-17 1045 San Mateo Jasper Ridge Biological Preserve, Stanford University; seven yards from paved road in middle of the blocked-off dirt path leading to Causeway Bridge 105 Comment
  JROH5601  Agrostis capillaris John Rawlings 2013-6-26 1204 San Mateo Jasper Ridge Biological Preserve, Stanford University. A few meters from the semaphore grass vernal depression west of Rd. C 121 Comment
  POM207320  Agrostis densiflora E. B. Copeland 1903-8-13 3308 San Mateo Montara Point. Comment
  SJSU15815  Agrostis densiflora John Rawlings, Toni Corelli 2016-5-13 1898 San Mateo Bean Hollow State Beach south bluff above beach 11 Comment
  UC1153947  Agrostis densiflora Beecher Crampton 1957-6-9 4166 San Mateo along State Hwy 1 ca 5-6 mi s San Francisco (bluffs above sea) Comment
  JROH4788  Agrostis exarata John Rawlings 2010-6-12 0988 San Mateo Jasper Ridge Biological Preserve, Stanford University; adjacent to trail just east of the first redwood grove on Trail 1 118 Comment
  CAS-BOT-BC139464  Agrostis hallii Walter Knight; Irja Knight 1965-6-20 s.n. San Mateo San Bruno Mountain. In Crystal Cave Canyon. Comment
  JROH4794  Agrostis hallii John Rawlings 2011-6-21 1085 San Mateo Jasper Ridge Biological Preserve, Stanford University; adjacent to Horse Trail in opening in chaparral a few hundred feet from Escobar Road 125 Comment
  UC766883  Agrostis viridis R. F. Hoover 1940-9-1 4548 San Mateo La Honda summit La Honda Comment
  JROH4160  Ailanthus altissima John Hunter Thomas 1992-5-26 25353 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along SLAC corridor 82 Comment
  SEINET7594518 Image available Aira caryophyllea A. D. E. Elmer 1903-1 4705 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC138232  Aira caryophyllea var. caryophyllea A. D. E. Elmer 1903-5-1 4705 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC138242  Aira caryophyllea var. caryophyllea John H. Thomas 1955-4-6 4845 San Mateo San Bruno Mountain just north of South San Francisco. 91 Comment
  CAS-BOT-BC138251  Aira caryophyllea var. caryophyllea H. L. Mason 1921-5-29 s.n. San Mateo Near Arroyo de las Frijoles. Comment
  UCSC008506  Aira praecox Randall Morgan 2013-5-24 5526 San Mateo Bean Hollow State Beach Comment
  CAS-BOT-BC445427  Alisma triviale Elizabeth McClintock; Paul Reeberg 1988-6-7 s.n. San Mateo San Bruno Mountains. P.G.&E. Marsh. Comment
  JROH4542  Allium amplectens John Hunter Thomas 1980-5-6 19928 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  SJSU6178  Allium dichlamydeum S. H. Casey 1969-5-18 246 San Mateo near Fern Rock, San Bruno Mt Comment
  JROH4549  Allium falcifolium John H. Thomas 1957-4-16 6662 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent slopes. Comment
  POM169881  Allium falcifolium A. D. E. Elmer 1903-06 4831 San Mateo Crystal Springs Lake. Comment
  SJSU657  Allium falcifolium A. W. Jacobs 1941-4-20 San Mateo Jasper Ridge above Searsville Lake Comment
  POM196559  Allium lacunosum var. lacunosum H. L. Mason 1921-5-13 s.n. San Mateo Jasper Ridge near Sand Hill Caves Comment
  CAS-BOT-BC472790  Allium neapolitanum J. Ed. McClellan; Bonnie McClellan 1972-4-1 4 San Mateo Bernal Ave, Burlingame Comment
  CAS-BOT-BC132026  Allium peninsulare var. franciscanum D. E. Breedlove 1963-5-13 4942 San Mateo On the SE corner of the junction of Crystal Springs Road and Polhemus Road, W of San Mateo Comment
  JROH4558  Allium peninsulare var. franciscanum John H. Thomas 1971-5-30 15963 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1323  Alnus rhombifolia Otto M. Sokol 1953-5-21 100 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam, Searsville Lake Comment
  CAS-BOT-BC169343  Alnus rubra George Oberlander 1950-3-11 454 San Mateo Pilarcitos Canyon. San Francisco Watershed Reserve Comment
  CAS-BOT-BC169345  Alnus rubra W. R. Dudley 1894-3-26 s.n. San Mateo Along San Gregorio Creek below town. Santa Cruz Penisula Comment
  CAS-BOT-BC137921  Alopecurus saccatus W. R. Dudley 1910-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula. New Grade road above Fritz Patricks. Comment
  UC188946  Alopecurus saccatus Michener Sept 1891 124 San Mateo San Bruno Rd. Comment
  SJSU15844  Amaranthus californicus John Rawlings, Toni Corelli 2014-10-5 1268 San Mateo Santa Cruz mountains west of Skyline Blvd. USGS US Topo 7.5-minute map for La Honda; west of Windy Hill Open Space Preserve, Portola Valley 438 Comment
  CHSC57078  Ambrosia chamissonis Steven Triano 1988-5-24 186 San Mateo Coastal sand dunes W of Hwy. 1 ca 0.2 mi N of Pescadero Road. 9 Comment
  JEPS20296  Ambrosia chamissonis Lewis S. Rose 1956-8-13 56144 San Mateo Princeton 6 Comment
  RSA118964  Ambrosia chamissonis L. S. Rose 1956-8-13 56144 San Mateo San Mateo County, Princeton. 6 Comment
  CAS-BOT-BC214049  Amsinckia James McMurphy 1906-3-10 s.n. San Mateo By stone crusher. Comment
  SEINET7062815  Amsinckia spectabilis A. G. Vestal 1937-6-15 s.n. San Mateo Pebble Beach west of Pescadero. UTM Zone 10, 551765mE, 4121313mN. (WGS84/NAD83). 0 Comment
  UC24623  Amsinckia spectabilis Alice Eastwood April 1896 San Mateo Crystal Springs Comment
  UCD117431  Anagallis arvensis Richard W. Cleveland 1951-4-28 37 San Mateo 2.2 miles south of Pescadero. Comment
  UCD14397  Anagallis arvensis Marcy Dickenson 1983-4-23 120 San Mateo San Mateo Co.; on Jasper Ridge, at the Stanford Biological Preserve, within 1 mile of Westridge Road entrance; Comment
  CAS-BOT-BC391919  Anemone grayi E. A. McGregor 1908-3-28 s.n. San Mateo Kings Mt. Comment
  RSA19309  Angelica hendersonii L. S. Rose 1937-9-5 37647 San Mateo Mussel Rocks 61 Comment
  UC140427  Angelica tomentosa var. tomentosa E. L. Greene 1903-6-30 3354 San Mateo Pacific Coast, Crystal Springs Lake Crystal Springs Lake; Pacific Coast, Crystal Springs Lake Comment
  POM132666  Angelica tomentosa var. tomentosa A. D. E. Elmer 1903-07 4998 San Mateo Crystal Springs Lake, southern end Comment
  CAS-BOT-BC273172  Anisocarpus madioides W. R. Dudley 1895-6-5 4209 San Mateo Santa Cruz Mountain Peninsula. Redwoods - Pescadero Creek Comment
  CAS-BOT-BC273181  Anisocarpus madioides Josephine D. Randall 1907-6-29 91 San Mateo Santa Cruz Peninsula. Portola Valley Comment
  UC1080539  Anisocarpus madioides S. S. Tillett and I. Sternback 1956-6-24 529 San Mateo n of (behind) Portola Camp Store (just outside Portola State Park, Middleton property) 396 Comment
  CAS-BOT-BC102292  Anthemis cotula W. R. Dudley 1893-6-8 s.n. San Mateo Near Cedro Cottage, Stanford University Comment
  SD5799  Anthemis cotula unknown 1925-9-3 San Mateo Burlingame Comment
  CAS-BOT-BC280641  Anthoxanthum occidentale John Hunter Thomas 1954-4-3 3820 San Mateo Along San Gregorio Creek about 1.5 miles west of La Honda 106 Comment
  JROH3601  Aphanes occidentalis John H. Thomas 1968-3-17 14195 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3603  Aphanes occidentalis John H. Thomas 1973-4-14 16564 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC454488  Aphanes occidentalis George Oberlander 1950-3-11 448 San Mateo Grassland, Sweeney Ridge, San Francisco Watershed Reserve Comment
  SEINET3161271  Aphyllon comosum W. A. Setchell 1908-8-30 sn San Mateo Farallone City Comment
  POM132688  Apiastrum angustifolium A. D. E. Elmer 1903-06 4461 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC451566  Aponogeton distachyos Peter Rubtzoff 1956-4-2 1767 San Mateo Skyline Blvd. near the junction of Chinese Cemetery Road. Comment
  CAS-BOT-BC392068  Aquilegia eximia Miss. H. D. Geis 1901-7-1 s.n. San Mateo Pulpit Rock Canon [Canyon]. Near stage road, from S. Mateo to Crystal Springs Res. Dam Comment
  UC118822  Aquilegia formosa C. F. B. 1902-3-30 422 San Mateo Crystal Springs Lake Comment
  SD1681  Aquilegia formosa Ulysses S. Grant IV June 1925 San Mateo La Honda Comment
  CHSC57096  Aquilegia formosa var. truncata Steven Triano 1988-5-24 206 San Mateo Along S side of Old La Honda Road ca 0.3 mi E of its jct. With La Honda Road. 365 Comment
  UCR64488  Arabis blepharophylla Lincoln Constance, R. Bacigalupi, C. R. Bell 1951-3-25 s.n. San Mateo SE side of Colma Canyon 61 Comment
  RSA0125532  Arabis blepharophylla R. C. Rollins 1941-3-22 2950 San Mateo San Bruno Hills, 2 miles southeast of Daly City Comment
  CAS-BOT-BC128626  Arbutus menziesii Elmer I. Applegate 1895-3-9 315 San Mateo Woodside Comment
  CAS-BOT-BC128668  Arbutus menziesii Elizabeth McClintock; Walter Knight; Irja Knight 1964-9-11 s.n. San Mateo South of Brisbane on side hill by Frontage Road - San Bruno Mountain Comment
  RSA15205  Arbutus menziesii C. B. Wolf 1926-10-19 88 San Mateo Near La Honda. Santa Cruz Mts. Comment
  UCSB18630  Arbutus menziesii Schulte, John 1963-4-9 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mounatins 152 Comment
  SEINET11989292  Arctostaphylos S. W. Edwards 1982-1 s.n. San Mateo Foothill Park Comment
  CAS-BOT-BC24128  Arctostaphylos andersonii J. H. Thomas 1954-2-13 3686 San Mateo Along Skyline Highway between Kings Mt. Road and La. Honda Road. 609 Comment
  JEPS48587  Arctostaphylos andersonii James G. Daly 1934-1-1 175 San Mateo Middle La Honda Canyon Santa Cruz Mountains, San Gregorio Watershed Comment
  SEINET12001640  Arctostaphylos andersonii W. R. Dudley 1906-1 5 San Mateo Kings Mt., Santa Cruz Range, Santa Cruz Peninsula 610 Comment
  SEINET11987493  Arctostaphylos andersonii var. imbricata J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4215 San Mateo from Strybing Arboretum, Golden Gate Park, San Francisco, from San Bruno Mountain Comment
  CAS-BOT-BC23509  Arctostaphylos crustacea L. S. Rose 1942-3-30 42007 San Mateo Rocky brushy hills, Kings Mountain 600 Comment
  CAS-BOT-BC23549  Arctostaphylos crustacea C. F. Baker 1902-3-18 328 San Mateo King's Mountain Comment
  JROH1924  Arctostaphylos crustacea subsp. crustacea Richard L. Garber 1971-7-13 43 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1932  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1970-7-5 15665 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1934  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1974-4-25 17208 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville end of ridge Comment
  JROH1939  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1940  Arctostaphylos crustacea subsp. crustacea John Hunter Thomas 1979-5-10 19547 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET11988203  Arctostaphylos glandulosa W. Knight, Raiche, R. 1982-1 4416 San Mateo San Bruno Mountain, up Buckeye Canyon on Oak Ridge 91 Comment
  SEINET11988205  Arctostaphylos glandulosa W. Knight, Raiche, R. 1982-1 4420 San Mateo San Bruno Mountain, Buckeye Canyon on Oak Ridge 102 Comment
  SEINET11988234  Arctostaphylos glandulosa W. Knight, Raiche, R. 1982-1 4417 San Mateo San Bruno Mountain, Buckeye Canyon on Oak Ridge 137 Comment
  CAS-BOT-BC24496  Arctostaphylos imbricata Peter H. Raven 1950-2-25 1383 San Mateo W. end of ridge behind NBC station, San Bruno Mtns. 457 Comment
  CAS-BOT-BC24497  Arctostaphylos imbricata Peter H. Raven 1950-2-25 1383 San Mateo W. end of ridge behind NBC station, San Bruno Mtns. 457 Comment
  CAS-BOT-BC24500  Arctostaphylos imbricata James B. Roof 1961-4-18 s.n. San Mateo From ne. face of San Bruno Mountain, northern San Mateo Co. 335 Comment
  RSA51443  Arctostaphylos imbricata P. H. Raven 1950-2-25 1383 San Mateo W end of ridge behind NBC Television Station, San Bruno Mountains 457 Comment
  CAS-BOT-BC44708  Arctostaphylos regismontana Walter Knight; Irja Knight 1964-9-14 831 San Mateo On Peak Mt. - Western sector 304 Comment
  CAS-BOT-BC44748  Arctostaphylos regismontana W. R. Dudley 1902-5-17 s.n. San Mateo Near King's Mountain Road 457 Comment
  RSA141485  Arctostaphylos regismontana B. O. Schreiber 1938-10-16 2564 San Mateo On Kings Mountain. 609 Comment
  RSA636742  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24637 San Mateo NW side of Montara Mtn. 150 Comment
  SBBG83971  Arctostaphylos regismontana R. Gankin 1966-5-17 740 a San Mateo Montara Mtn Comment
  UC1120830  Arctostaphylos regismontana A. E. Wieslander and Beryl O. Schreiber 1940-3-5 3 San Mateo road from roadside King's Mt.; Santa Cruz Quadrangle 274 Comment
  UC1120832  Arctostaphylos regismontana A. E. Wieslander and B. O. Schreiber 1940-3-5 1 San Mateo near Woodside road to King's Mountain; Santa Cruz Quadrangle 182 Comment
  UCD166075  Arctostaphylos tomentosa Jack Major; M. Forde and S. Bamberg 1962-4-3 731 San Mateo Ano Nuevo Point. (Exact location unknown. Coordinates estimated by label maker). Comment
Read comments Oct 15 2021
  RSA636846  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24642 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
  UCD51708  Arctostaphylos tomentosa var. tomentosiformis Roman Gankin 1959-3-22 325 San Mateo Kings Mountain Road, 1.2 miles east of junction with State Highway 5, ca. 5 miles west of Woodside, San Mateo County, California. Comment
  SEINET11989278  Arctostaphylos tomentosa var. tomentosiformis Unknown 1966-1 739 San Mateo ca 0.4 mi NE of Peak Mountain of Montara Mountain range 488 Comment
  SBBG21954  Arctostaphylos uva-ursi R. F. Thorne with P. C. Everett 1963-6-9 32218 San Mateo top of San Bruno Mtn, near the TV Tower 335 Comment
  SBBG83967  Arctostaphylos uva-ursi R. Gankin 1959-3-25 328 San Mateo San Bruno Mtn, S San Francisco, 0.25 mi E of KRON TV transmitter Comment
  SEINET11987153  Arctostaphylos uva-ursi var. coactilis W. Knight, Knight, I. 1981-1 4055 San Mateo Tilden Botanic Garden, Berkeley, orig. about 200 yds E of summit parking lot of San Bruno Mt Comment
  SEINET11987195  Arctostaphylos uva-ursi var. suborbiculata W. Knight, Knight, I. 1981-1 3917 San Mateo Tilden Botanic Garden, Berkeley, orig. from Kamchatka Point on San Bruno Mt Comment
  CAS-BOT-BC47696  Armeria maritima subsp. californica Alice Eastwood 1915-6-13 4712 San Mateo Granada Comment
  CAS-BOT-BC47697  Armeria maritima subsp. californica W. R. Dudley 1896-4-17 s.n. San Mateo Pebble Beach, Pescadero Comment
  POM204327  Armeria maritima subsp. californica I. L. Wiggins 1929-7-4 3801 San Mateo Pescadero Beach Comment
  JROH4837  Arrhenatherum elatius Toni Corelli 2006-5-6 310 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road past Searsville Lake beach in disturbed grassy area, under large valley oak 106 Comment
  POM288964  Artemisia biennis Lyman Benson 1928-11-25 788 San Mateo Stanford Univ-- Lake Searsville. Santa Cruz Mts. 152 Comment
  CAS-BOT-BC84883  Artemisia californica J. H. Thomas 1962-11-4 10012 San Mateo Jasper Ridge, Stanford Univ. Biological Experimental Area. Near Westridge end. Comment
  RSA177002  Artemisia californica John H. Thomas 1964-11-29 10538 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of palo Alto. E end of Searsville Dam Comment
  SEINET11853229  Artemisia californica Unknown 1930-1 7303 San Mateo Menlo Park Golf Court Comment
  CAS-BOT-BC93929  Artemisia douglasiana Peter H. Raven 1957-9-1 11296 San Mateo Coastal bluffs 1.1 mi. s. of Pigeon Point Lighthouse Comment
  UC943016  Artemisia douglasiana Lewis S. Rose 1940-8-10 49155 San Mateo Crystal Springs Lake Comment
  SEINET259096  Artemisia douglasiana Gordon H. True Jr. 1937-7-23 803 San Mateo San Mateo County: Along Salada Beach-Skyline Blvd. 61 Comment
  POM212012  Artemisia pycnocephala C. B. Wolf 1930-11-5 1062 San Mateo 4 mi. S of Pescadero. 8 Comment
  SEINET11853520  Artemisia pycnocephala E. A. Purer 1933-1 5387 San Mateo 2 mi S of Pigeon Point Comment
  CAS-BOT-BC146256  Arundo donax Malcom A. Nobs; S. Galen Smith 1949-8-25 1574 San Mateo South of Rockaway Beach. Comment
  SACT000356  Arundo donax Malcolm Nobs, S. Smith 1949-8-25 San Mateo on bank in marsh, 6-12 feet tall, with typha, scirpus, potameton, polygonum, and lactuca. Brackish marsh Comment
  CAS-BOT-BC384619  Asarum caudatum J. Lovelle 1973-8-5 75 San Mateo Pomponio Canyon Comment
  JROH438  Asclepias fascicularis John Hunter Thomas 1992-6-8 25367 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA184853  Asclepias fascicularis L. S. Rose 1965-8-27 s.n. San Mateo Emerald Lake, West of Redwood City 122 Comment
  CAS-BOT-BC186753  Astragalus gambelianus Lois E. James 1946-4-16 1741 San Mateo Back of Redwood City. High Road off Woodside Road Comment
  CAS-BOT-BC186770  Astragalus gambelianus Lewis S. Rose 1956-7-2 56113 San Mateo Skyline Blvd., hills w. of San Mateo 182 Comment
  JROH1995  Astragalus gambelianus John Hunter Thomas 1982-4-28 20876 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-BC186760  Astragalus gambelianus L. R. A. 1902-5-4 2402 San Mateo Woodside Comment
  UCD104824  Astragalus gambelianus Michael A. Vincent 1998-4-9 8203 San Mateo East side of Canada Road, ca. 200 yards southeast of its junction with Edgewood Road, just southwest of I-280, at Filoli Center. Comment
  CAS-BOT-BC389705  Astragalus nuttallii L. Sigal 1969-8-11 s.n. San Mateo Pillar Point Comment
  CHSC40740  Astragalus nuttallii var. virgatus Delzie Demaree 1933-6-12 10376 San Mateo Baden Station, South San Francisco. Comment
  SEINET948579  Astragalus nuttallii var. virgatus W. R. Russell 1966-1 s.n. San Mateo On side of hill at north end of Princeton Beach (ca. 2 miles south of Moss Beach) Comment
  CAS-BOT-BC170572  Atriplex John H. Thomas 1968-10-6 14844 San Mateo Vicinity of railroad tracks and Dumbarton Bridge casueway entrance. East of Palo Alto. Comment
  UC499711  Atriplex hortensis L. R. Abrams 1932-8-22 13410 San Mateo Bayshore Highway near Redwood City; near Redwood City Comment
  UC499713  Atriplex hortensis Roxana S. Ferris 1932-9-12 8270 San Mateo Bayshore Highway at Redwood City; Bayshore Highway at Redwood City Comment
  RSA478327  Atriplex leucophylla L. S. Rose 1933-7-20 33305 San Mateo Granada. Comment
  POM164809  Atriplex leucophylla E. B. Copeland 1903-6-5 3321 San Mateo Montara Point. Comment
  SEINET3409822 Image available Atriplex leucophylla Lewis S. Rose 1933-7-20 33305 San Mateo Sea beach, Granada, San Mateo County, California. Comment
  RSA478440  Atriplex rosea L. M. Booth 1932-10-29 2112 San Mateo S. San Francisco. Comment
  SEINET5727745 Image available Atriplex semibaccata Delzie Demaree 1932-1 10529 San Mateo Belmont; Belmont Comment
  CAS-BOT-BC146077  Avena barbata J. H. Thomas 1954-4-3 3836 San Mateo Pilarcitos Creek Road, 3.5 miles northeast of Halfmoon Bay. 121 Comment
  JROH4842  Avena barbata W. Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9 Comment
  RSA291577  Avena barbata T. C. Fuller 1971-6-10 19879 San Mateo 1.6 km. east of the San Gregorio. Comment
  CDA1749  Avena fatua T. C. Fuller 1971-6-1 19880 San Mateo 1 mile east of San Gregorio. 0 Comment
  JROH4844  Avena fatua John Hunter Thomas 1984-4-24 23304 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD56301  Avena fatua P. B. Kennedy 1928-5-2 s.n. San Mateo E of Daly City. Comment
  POM89832  Azolla filiculoides F. T. Bioletti 1893-6-15 s.n. San Mateo Baden Comment
  POM308447  Baccharis douglasii Henry J. Ramsey, Henry J. Ramsey 1939-10-7 3060 San Mateo San Mateo Comment
  JROH538  Baccharis glutinosa John Hunter Thomas 1979-9-9 19731 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of Searsville Lake Comment
  CAS-BOT-BC99509  Baccharis pilularis E. M. Zeile 1921-7-30 s.n. San Mateo Salada Comment
  CAS-BOT-BC99520  Baccharis pilularis George Oberlander 1949-8-20 361 San Mateo Sweeney Ridge Comment
  CAS-BOT-BC99524  Baccharis pilularis W. R. Dudley 1894-12-13 s.n. San Mateo above Preston's, La Honda Road Comment
  CAS-BOT-BC99532  Baccharis pilularis A. D. E. Elmer 1903-2-1 s.n. San Mateo Portola Comment
  CAS-BOT-BC99535  Baccharis pilularis Louis F. Pitelka 1974-5-28 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  UC942901  Baccharis pilularis Lewis S. Rose 1949-9-20 49182 San Mateo Sharp Park Comment
  SD30701  Baccharis pilularis Edith A. Purer 1922-8-4 5409 San Mateo Clay hillside near Baden Station. 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
  JROH547  Baccharis pilularis subsp. consanguinea John H. Thomas 1964-11-29 10547 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH552  Baccharis pilularis subsp. consanguinea John H. Thomas 1978-9-24 19336 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET3387468 Image available Baeria chrysostoma Lewis S. Rose 1933-4-30 33128 San Mateo Redwood City. Comment
  CAS-BOT-BC16630  Barbarea orthoceras John H. Thomas 1965-4-29 10617 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC16633  Barbarea orthoceras Walter Knight; Irja Knight 1965-3-14 933 San Mateo San Bruno Mountain. Manzanita Dyke north of mountain summit. Comment
  CAS-BOT-BC16634  Barbarea orthoceras Walter Knight; Irja Knight 1965-3-15 1236 San Mateo Colma Canyon - San Bruno Mountain. Comment
  CAS-BOT-BC166963  Barbarea orthoceras Peter Rubtzoff 1975-5-21 7962 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH1445  Barbarea orthoceras John Hunter Thomas 1980-5-6 19933 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM272597  Barbarea vulgaris Lyman Benson 1929-3-15 1009 San Mateo Bank of San Francisquito Creek at Stanford Isolation Hospital. Comment
  JEPS121453  Bellardia trixago Adam C. Schneider with C. Matt Guilliams 2013-5-17 188 San Mateo Crystal Springs Reservoir, West edge of Pulgas Ridge (near Interstate 280) Comment
  JROH3916  Bellardia trixago John H. Thomas 1975-6-5 17930 San Mateo Jasper Ridge Biological Preserve, Stanford University; near lowflow crossing Comment
  JROH3922  Bellardia trixago John Hunter Thomas 1982-5-18 20931 San Mateo Jasper Ridge Biological Preserve, Stanford University; along SLAC-JR boundary Comment
  CAS-BOT-BC344843  Bellis perennis Peter Rubtzoff 1976-3-14 8443 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC75875  Berberis pinnata A. D. E. Elmer 1903-4-1 4820 San Mateo San Bruno Hills. Comment
  UC306615  Berberis pinnata A. D. E. Elmer April, 1903 4820 San Mateo San Bruno Hills Comment
  CAS-BOT-BC75867  Berberis pinnata W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Peninsula. Near pass to Calera Valley north of the Montara Mountains. Comment
  JROH1321  Berberis pinnata subsp. pinnata H. L. Mason 1922-3-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; between "Zoo Shack" and sandstone caves Comment
  CAS-BOT-BC66299  Blechnum spicant W. R. Dudley 1901-12-31 s.n. San Mateo along the upper Gazos Creek Comment
  UC311186  Blennosperma nanum var. nanum A. D. E. Elmer 1903-4-1 4521 San Mateo San Bruno Hills Comment
  RSA130356  Boisduvalia densiflora Roxana S. Ferris 1930-9-3 2044 San Mateo Santa Cruz Mountain Peninsula: Upper Mud Lake. Coal Mine Ridge Comment
  POM32550  Boisduvalia densiflora var. densiflora A. D. E. Elmer 1903-06 4273 San Mateo Crystal Springs Lake. 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-BC31091  Bolboschoenus maritimus Roxana S. Ferris 1920-8-11 2037 San Mateo Salt marsh near end of Embarcadero Road, Palo Alto Comment
  SEINET12276036  Boraginaceae M. T. Doutt 1931-1 607 San Mateo near Portola, along Pacific Ocean Comment
  CAS-BOT-BC95343  Bowlesia incana Walter Knight; Irja Knight 1965-3-28 1107 San Mateo Trillium Gulch, San Bruno Mountain Comment
  JROH3883  Boykinia occidentalis H. J. Dengler 1969-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. North bank of San Francisquito Creek, opposite the base of trail to S.F. Creek on N.E.J.R., just above "falls" in creek. Comment
  CAS-BOT-BC420226  Boykinia occidentalis H. L. Mason 1921-7-14 s.n. San Mateo Pescadero Creek on the La Honda-Pescadero Road 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
  JROH4849  Brachypodium distachyon Herb Dengler 1977-6-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. West of Searsville Lake above beach Comment
  JROH4858  Brachypodium distachyon John Hunter Thomas 1989-5-9 24725 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC30257  Brassica nigra Alice Eastwood; John Thomas Howell 1939-7-9 7439 San Mateo Skyline Blvd. east of La Honda. Comment
  RSA0084270  Brassica nigra Lyman Benson 1936-6-11 7689 San Mateo Menlo Park; U.S. 101; Watershed: San Francisco Bay. 30 Comment
  JROH1470  Brassica rapa John Hunter Thomas 1989-5-23 24747 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old bridge over two parts of lake Comment
  UC2049864  Brassica rapa H. W. Johansen 1955-4-23 82 a San Mateo Crystal Springs road, 2 miles W of San Mateo Comment
  CAS-BOT-BC145492  Briza maxima Elizabeth McClintock; Paul Reeberg 1988-4-15 s.n. San Mateo San Bruno Mountains. East of Powerline and south of Guadalupe Canyon Parkway. 99 Comment
  JROH4868  Briza maxima John Hunter Thomas 1986-5-17 24051 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dam to Rattlesnake Rock Comment
  CAS-BOT-BC145341  Briza minor Walter Knight; Irja Knight 1965-4-24 1027 San Mateo San Bruno Mountain. Point San Bruno. Comment
  JROH4881  Briza minor John H. Thomas 1967-6-1 12957 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4883  Briza minor John H. Thomas 1973-4-14 16557 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA149176  Briza minor John H. Thomas 1961-5-13 9344 San Mateo Coastal sand dunes at Franklin Point. Comment
  SEINET4183129 Image available Briza minor David D. Keck 1932-4-18 San Mateo Burlingame Comment
  SJSU15931  Briza minor Toni Corelli, John Rawlings 2016-4-29 1771 San Mateo Along Atkinson Bluff Trail and throughout Cascade Field, north of Cascade Cr. Trail, in Ano Nuevo State Park 11 Comment
  SJSU15963  Briza minor John Rawlings, Ken Hickman 2016-5-26 1840 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
  UC306623  Briza minor A. D. E. Elmer May, 1903 4912 San Mateo Crystal Springs Lake Comment
  JROH5753  Briza minor M. Day 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Whiskey Hill Gate Comment
  SD631  Brodiaea coronaria Ulysses S. Grant IV 1925-6-10 San Mateo Hillsborough. Comment
  IRVC9059  Brodiaea elegans P. W. Rundel 1964-7-8 1361 San Mateo La Honda Road; 1.5 mi. N of Portola Road Santa Cruz Mtns 274 Comment
  CAS-BOT-BC484349  Brodiaea elegans subsp. elegans W. R. Dudley 1893-5-27 s.n. San Mateo By road to Searsville Comment
  CAS-BOT-BC144137  Bromus John H. Thomas 1965-4-29 10619 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC144139  Bromus Ned Cahill 1974-5-30 325 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  RSA159425  Bromus carinatus John H. Thomas 1961-5-14 9374 B San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  RSA195508  Bromus carinatus John H. Thomas 1966-4-13 11558 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC148995  Bromus carinatus var. carinatus Le Roy Abrams 1915-6-14 5558 San Mateo Kings Mountain. At first bridge. Comment
  CAS-BOT-BC149014  Bromus carinatus var. carinatus Javier Penalosa 1963-3-30 2711 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Boulevard. In SSF. 91 Comment
  CAS-BOT-BC155140  Bromus hordeaceus Walter Knight; Irja Knight 1965-5-15 s.n. San Mateo San Bruno Mountain. Pig Ranch Ravine. Comment
  JROH4916  Bromus hordeaceus Duncan M. Porter 1960-5-5 678 San Mateo Jasper Ridge Biological Preserve, Stanford University. Meadow near crest of N-facing slope above Webb Ranch Comment
  JROH4922  Bromus hordeaceus Stephen N. Turitzin 1975-5-7 1 San Mateo Jasper Ridge Biological Preserve, Stanford University 190 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
  JROH5614  Bromus hordeaceus John Rawlings 2014-4-11 1217 San Mateo Jasper Ridge Biological Preserve, Stanford University; in road G in hard-packed dirt, immediately north of its intersection with Rd. J. 105 Comment
  JROH4932  Bromus laevipes John H. Thomas 1967-5-12 12865 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4934  Bromus laevipes John H. Thomas 1973-6-10 16816 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC162309  Bromus madritensis Paul Arnaud 1941-4-17 s.n. San Mateo Redwood City, Jefferson Avenue. Comment
  CAS-BOT-BC162310  Bromus madritensis John H. Thomas 1961-5-14 9384 A San Mateo Just north of dam on San Mateo Creek. 121 Comment
  JROH4947  Bromus madritensis subsp. rubens John H. Thomas 1965-4-28 10594 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4956  Bromus madritensis subsp. rubens John Rawlings 2013-4-16 1134 San Mateo Jasper Ridge Biological Preserve, Stanford University; Escobar Gate fenceline about 50 m east of the gate 156 Comment
  CAS-BOT-BC162229  Bromus maritimus John H. Thomas 1963-5-20 10151 San Mateo Ano Nuevo Island, about 0.5 mile off shore and about 20 miles northwest of Santa Cruz. Comment
  SEINET9757293 Image available Bromus rigidus Robert A. Norris 1975-3-31 San Mateo near Crocker Ave., San Bruno Mts. Comment
  JEPS26847  Bromus vulgaris Rimo Bacigalupi with J. H. Thomas and L. Heckard 1961-5-23 7710 San Mateo 1/4 mi w of crossing with Skyline Boulevard (along Alpine Road); Alpine Road 685 Comment
  CAS-BOT-BC233708  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 railroad tracks, near Maple Street, Redwood City 7 Comment
  CAS-BOT-BC233711  Buddleja davidii Phillip Wheeler 1965-6-8 s.n. San Mateo Bayshore, lower cut area, San Bruno Mountain Comment
  UC984909  Cakile maritima Ira L. Wiggins 1949-7-2 12196 San Mateo Pescadero Beach Comment
  CAS-BOT-BC36949  Cakile maritima var. maritima John H. Thomas 1963-5-20 10116 San Mateo Ano Nuevo Island about one half mile off shore and about 20 mile northwest of Santa Cruz. Comment
  CAS-BOT-BC185148  Calamagrostis nutkaensis A. D. E. Elmer 1903-5-1 5040 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
  SD38112  Calandrinia ciliata Marie Cummings 1933-5-3 69 San Mateo Woodside Comment
  UC306621  Callitriche verna A. D. E. Elmer Jun 1903 4279 San Mateo Lake San Andreas Comment
  JEPS61617  Calochortus albus W. L. Jepson 1922-3-19 9533 San Mateo back of Millbrae; Buriburi Ridge Comment
  JROH4601  Calochortus albus John H. Thomas 1973-4-14 16572 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4603  Calochortus albus John H. Thomas 1976-4-28 18096 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR121570  Calochortus albus George K. Helmkamp, E. A. Helmkamp 1999-6-28 5000 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  CAS-BOT-BC492207  Calochortus albus Marion Ownbey; Ruth P. Ownbey 1938-7-7 1698 San Mateo Canyonside, Redwood Belt, Santa Cruz Mts., 3 miles west of Woodside Comment
  CAS-BOT-BC492210  Calochortus albus Elmer I. Applegate 1895-4-8 727 a San Mateo San Francisquito Creek, near and above Stanford University Comment
  CAS-BOT-BC492224  Calochortus albus A. D. E. Elmer 1903-5-1 4846 San Mateo San Mateo Comment
  HSC23997  Calochortus albus Mary Katherine Wicksten 1971-6-16 45 San Mateo Huddart Park, woods near Oak Flat Comment
  JROH4614  Calochortus argillosus James McMurphy 1909-6-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4636  Calochortus luteus John H. Thomas 1976-5-26 18154 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA6293  Calochortus tolmiei D. D. Keck 1932-5-11 1496 San Mateo Above Woodside on La Honda Road, east slope of Santa Cruz Mountains Comment
  UC729636  Calochortus tolmiei Carl B. Wolf 1929-5-22 3722 San Mateo near La Honda grade; Santa Cruz Mts. 182 Comment
  CAS-BOT-BC493993  Calochortus tolmiei Carl B. Wolf 1929-5-22 3722 San Mateo Near base of LaHonda grade, Santa Cruz Mts. 182 Comment
  CAS-BOT-BC494044  Calochortus venustus A. D. E. Elmer 1903-7-1 4763 San Mateo Portola Comment
  CAS-BOT-BC270667  Calycadenia multiglandulosa L. S. Rose 1941-6-12 41268 San Mateo W of Redwood City, Emerald Lake 120 Comment
  UC662579  Calycadenia multiglandulosa L. S. Rose 1941-6-12 41268 San Mateo hills w Redwood City; Emerald Lake 120 Comment
  POM351403  Calycadenia multiglandulosa subsp. cephalotes L. S. Rose 1937-9-21 37658 San Mateo Emerald Lake, west of Redwood City. 183 Comment
  CAS-BOT-BC436447  Calystegia occidentalis Elizabeth McClintock; Phillip C. Wheeler 1967-6-11 s.n. San Mateo San Bruno Mountain, slope to S of new Guadalupe Parkway just before it meets Radio Road Comment
  RSA92811  Calystegia purpurata P. H. Raven 1950-4-6 1774 San Mateo Colma Canyon, San Bruno Mts. 183 Comment
  CAS-BOT-BC224666  Calystegia purpurata subsp. purpurata Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo San Bruno Mountains. In Colma Canyon Comment
  JROH1842  Calystegia purpurata subsp. purpurata Toni Corelli 2010-5-19 369 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 8 129 Comment
  UC465972  Calystegia soldanella Katharine Brandegee 1913-8-11 San Mateo Tobin Comment
  SEINET7040214  Camissonia brevipes A. G. Vestal 1962-3-26 s.n. San Mateo Laguna Salada. San Francisco South Quadrangle UTM Zone 10, 545384mE, 4164305mN. Comment
  RSA116751  Camissonia ovata James I. McMurphy 1902-3-22 s.n. San Mateo Near Portola Comment
  CAS-BOT-BC160322  Camissoniopsis cheiranthifolia subsp. cheiranthifolia L. R. Abrams 1909-8-2 4250 San Mateo Pebble Beach, Pescadero Comment
  UC874076  Camissoniopsis micrantha John Thomas Howell 1938-5-1 13773 San Mateo Colma Canyon Comment
  SEINET10463045  Campanula prenanthoides Randall 1907-6-29 RANDALL 17 San Mateo King's Mountain Road Comment
  SEINET10463064  Campanula prenanthoides LeRoy R. Abrams 1907-8-26 Abrams s.n. San Mateo Kings Mountain Comment
  SEINET3406227 Image available Campanula prenanthoides Lewis S. Rose 1933-7-25 33311 San Mateo Kings Mountain Comment
  CAS-BOT-BC37162  Capsella bursa-pastoris David D. Keck 1932-2-16 1378 San Mateo Portola. Comment
  CAS-BOT-BC37668  Cardamine californica Reed Clark Rollins 1941-3-30 2954 San Mateo 4 miles northwest of Woodside. Comment
  CAS-BOT-BC37673  Cardamine californica John H. Thomas 1958-2-15 6982 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 182 Comment
  CAS-BOT-BC37690  Cardamine californica Oliver W. Norvell 1931-2-28 1356 San Mateo Kings Mountain Grade. Comment
  JEPS23932  Cardamine californica var. integrifolia LeRoy Abrams 1902-3-16 2274 San Mateo Kings Mountain Comment
  UC10443  Cardamine californica var. sinuata J. Burtt Davy 1895-4-20 1063 San Mateo Pilarcitos Creek Comment
  JROH5654  Cardamine hirsuta John Rawlings 2014-4-3 1258 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11 143 Comment
  CAS-BOT-BC37985  Cardamine oligosperma John H. Thomas 1961-5-14 9372 San Mateo San Francisco Watershed Reserve. Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. 152 Comment
  CAS-BOT-BC37982  Cardamine oligosperma Walter Knight; Irja Knight 1965-3-14 939 San Mateo San Bruno Mountain. Romanzoffia Ravine. 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
Read comments Jan 18 2012
  JROH582  Carduus pycnocephalus subsp. pycnocephalus John Hunter Thomas 1989-5-9 24708 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5549  Carduus tenuiflorus John Rawlings, Ann Lambrecht 2011-6-21 1196 San Mateo Jasper Ridge Biological Preserve, Stanford University. Equestrian Trail from Webb Ranch to Escobar Rd. in switchback zone 105 Comment
  JROH583  Carduus tenuiflorus Suzanne Biossat 1943-5-7 75 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC281835  Carduus tenuiflorus Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  JEPS48963  Carex amplifolia James G. Daly 1934-1 424 San Mateo upper Corte de Madera Canyon Comment
  CAS-BOT-BC19322  Carex barbarae John Thomas Howell 1938-5-1 13780 San Mateo Near South San Francisco. Comment
  SEINET7484300 Image available Carex barbarae Peter F. Zika 2010-1 24798 San Mateo Pescadero Road, c. 1 mile SE of Route 1 10 Comment
  SJSU15909  Carex barbarae John Rawlings, Sara Timby, Toni Corelli 2016-4-23 1734 San Mateo Bean Hollow bluff trail west of Hwy 1 south of Pescadero 8 Comment
  UC823145  Carex barbarae Alice Eastwood, John Thomas Howell 1938-4-24 5247 San Mateo Lobitas Comment
Read comments Oct 30 2021
  CAS-BOT-BC19325  Carex barbarae Walter Knight; Irja Knight 1965-4-15 s.n. San Mateo San Bruno Mountain. Mouth of Colma Canyon. Comment
  CAS-BOT-BC18931  Carex densa George Oberlander 1950-5-6 917 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon. Comment
  JROH4331  Carex densa John Hunter Thomas 1977-6-16 18738 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4333  Carex densa Toni Corelli 2005-4-20 285 San Mateo Jasper Ridge Biological Preserve, Stanford University; south of Road F 184 Comment
  UC823332  Carex densa John Thomas Howell 1938-5-1 13786 San Mateo near South San Francisco Comment
  POM230443  Carex densa J. T. Howell, Alice Eastwood 1937-5-7 4328 San Mateo Visatacion Valley Comment
  RSA88794  Carex densa Alice Eastwood, John Thomas Howell 1937-5-7 4328 San Mateo Visatacion Valley. Comment
  SEINET7560149 Image available Carex gracilior Charles Piper Smith 1905-4-26 874 San Mateo Portola Searsville Lake. 98 Comment
  CAS-BOT-BC21818  Carex harfordii Alice Eastwood; John Thomas Howell 1938-6-26 6070 San Mateo Pigeon Point. Comment
  UCR279902  Carex harfordii Peter Rubtzoff 1975-5-21 7968 San Mateo Central Coast, San Bruno Mountains, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road Junction 220 Comment
  CAS-BOT-BC21809  Carex harfordii Elizabeth McClintock; Paul Reeberg 1988-4-14 s.n. San Mateo Bayshore Blvd. Comment
  RSA789960  Carex harfordii Peter Rubtzoff 1975-5-21 7968 San Mateo San Bruno Mtns: Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  SEINET8345404  Carex hirta LeRoy E. Detling 1934-3-7 1008 San Mateo none. Comment
  CAS-BOT-BC119446  Carex nudata W. R. Dudley 1903-6-6 s.n. San Mateo Below Iversons near margin of Peter;s Creek at mouth. Comment
  UC1100481  Carex obnupta Malcolm A. Nobs and S. Galen Smith 1949-8-25 1575 San Mateo s Rockaway Beach Comment
  UCR279853  Carex obnupta Peter Rubtzoff 1978-5-18 9174 San Mateo San Francisco Bay Region, San Bruno Mountains, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 220 Comment
  UCR279900  Carex obnupta Peter Rubtzoff, Roman Gankin 1975-5-21 7965 San Mateo Central Coast, San Bruno Mountains, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road Junction 220 Comment
  CAS-BOT-BC176400  Carex obnupta Peter Rubtzoff 1976-6-30 8711 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  SEINET10711654  Carex obnupta Lewis S. Rose 1936-6-10 Rose 36317 San Mateo Chinese Cemetery, E. of Baden. 61 Comment
  CAS-BOT-BC117648  Carex serratodens W. R. Dudley 1909-4-27 s.n. San Mateo Whipple Road between Woodside and Crystal Spr. Lake Comment
  CAS-BOT-BC117653  Carex serratodens Cherie L. Wetzel 1969-6-20 883 San Mateo Near Canada College, Redwood City, just off Farm Hill Blvd. Comment
  JROH5662  Carex subbracteata John Rawlings 2014-5-19 1252 San Mateo Jasper Ridge Biological Preserve, Stanford University. At west edge of California semaphore grass vernal depression. 122 Comment
  UC1159367  Carex subbracteata J. H. Thomas 1959-4-4 7657 San Mateo about 0.7 mi s Gazos Creek (about 6.5 mi s from Pescadero) 45 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
  RSA789962  Carex subbracteata Peter Rubtzoff 1976-6-30 8707 San Mateo San Bruno Mtns: Saddlle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, westernmost part of the area. Comment
  SBBG47544  Carex subbracteata L. S. Rose 1939-4-14 39063 San Mateo South San Francisco 15 Comment
  CAS-BOT-BC116823  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5248 San Mateo Lobitas Comment
Read comments Oct 30 2021
  CAS-BOT-BC116825  Carex subbracteata var. subbracteata George Thomas Oberlander 1950-4-22 633 San Mateo Marsh, Pilarcitos Canyon Comment
  JROH4365  Carex tumulicola John Hunter Thomas 1978-4-8 19059 B San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  RSA15335  Carpobrotus chilensis C. B. Wolf 1927-1-29 146 San Mateo Pescadero Comment
  SEINET11942215  Carpobrotus chilensis M. T. Doutt 1931-1 179 San Mateo Ano Nuevo Pt Comment
  CAS-BOT-BC249192  Castilleja affinis David D. Keck 1940-5-15 5037 San Mateo Upper Crystal Springs Lake, east side 100 Comment
  OBI59410  Castilleja affinis Rimo Bacigalupi, J. R. Sweeney, Cliff Fenneman and George Bacigalupi, Jr 1954-8-3 4733 San Mateo Extreme NW San Mateo County. Hgts above Thornton Beach close to State Hwy 1 55 Comment
  JEPS15585  Castilleja affinis subsp. affinis G. Thomas Robbins 1956-8-18 3741 San Mateo immediately n mouth of Butano Creek (nw of Pescadero) Comment
Read comments Feb 28 2011
  JEPS60420  Castilleja affinis subsp. affinis T. I. Chuang and F. M. Chuang 1969-6-21 6661 San Mateo about 2 mi s Half Moon Bay road junction with Skyline Boulevard Comment
  JEPS6925  Castilleja affinis subsp. affinis Rimo Bacigalupi with G. Thomas Robbins 1954-6-18 4552 San Mateo 0.25 mi below Portola State Park road junction with the Alpine Road (along road to Portola State Park) Comment
  JEPS86226  Castilleja affinis subsp. affinis L. R. Heckard 1970-5-5 2451 San Mateo n side San Bruno Mountain (n spur) 60 Comment
  JROH3932  Castilleja affinis subsp. affinis D. D. Davis 1903-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  JROH3934  Castilleja affinis subsp. affinis Joseph J. Schweitzer 1951-4-21 36 San Mateo Jasper Ridge Biological Preserve, Stanford University 152 Comment
  JROH3939  Castilleja affinis subsp. affinis Duncan M. Porter 1961-4-8 751 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge Comment
  JROH3947  Castilleja affinis subsp. affinis John H. Thomas 1981-4-23 20467 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS103890  Castilleja affinis subsp. affinis T. I. Chuang and F. M. Chuang 1991-7-3 7861 San Mateo 1 mile S of Linda Mar, on highway 1 Comment
  JEPS9140  Castilleja ambigua subsp. ambigua N. L. Gardner 1914-7-11 San Mateo Moss Beach Comment
  POM190538  Castilleja ambigua subsp. ambigua D. D. Keck 1932-4-29 1453 San Mateo Burlington - San Mateo city limits, Bayshore Highway. Along San Francisco Bay. Comment
  SJSU16024  Castilleja ambigua subsp. ambigua John Rawlings, Toni Corelli 2016-5-13 1791 San Mateo Vallemar Bluff, Moss Beach. USGS Montara Mountain OE W 7.5 Minute (1:24,000 Scale) Topographic Map. 11 Comment
  UC406881  Castilleja ambigua subsp. ambigua David D. Keck 1927-6-10 394 San Mateo Montara Point; Radio Station 0 Comment
  RSA0030796  Castilleja ambigua subsp. ambigua D. D. Keck 1932-4-29 1453 San Mateo Burlington - San Mateo city limits, Bayshore Highway. Along San Francisco Bay. Comment
  JROH3956  Castilleja attenuata John H. Thomas 1973-4-14 16562 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
  HSC34849  Castilleja densiflora Thomas W. Nelson 1975-5-8 1808 San Mateo Beside Hwy. 280 S of San Francisco Comment
  NY68073  Castilleja franciscana F. W. Pennell 1940-5-15 25420 San Mateo E of upper Crystal Springs Lake, SW of San Mateo. 61.0 Comment
  RSA101001  Castilleja franciscana G. Oberlander 1950-4-23 897 San Mateo North Cahill Ridge, San Francisco Watershed Reserve. Comment
  CAS-BOT-BC243838  Castilleja latifolia Alice Eastwood; John Thomas Howell 1938-4-24 5252 San Mateo Tunitas Comment
  RSA448628  Castilleja latifolia D. D. Keck 1932-5-11 1768 San Mateo 2 miles north of San Gregorio Comment
  SD38276  Castilleja latifolia Edith A. Purer 1933-7-27 5355 San Mateo High stabilized sand dunes, Pigeon Point Comment
  SD4825  Castilleja latifolia Ulysses S. Grant IV June 1925 San Mateo near La Honda Comment
  JROH3995  Castilleja rubicundula subsp. lithospermoides John H. Thomas 1961-4-29 9188 San Mateo Jasper Ridge Biological Preserve, Stanford University; at western end of serpentine outcroppings Comment
  JROH4008  Castilleja rubicundula subsp. lithospermoides John Hunter Thomas 1986-5-8 24024 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC185345  Castilleja rubicundula subsp. lithospermoides Katharine Brandegee May 1905 San Mateo San Mateo Comment
  UC306597  Castilleja rubicundula subsp. lithospermoides A. D. E. Elmer Jun 1903 4420 San Mateo Crystal Springs Lake Comment
  SD37771  Castilleja rubicundula subsp. lithospermoides Edith A. Purer 1933-5-25 3652 San Mateo Spring Valley Lakes 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
  JEPS18909  Castilleja subinclusa subsp. franciscana Rimo Bacigalupi with G. Thomas Robbins 1955-8-4 5452 San Mateo just w Crystal Springs Lake, upper south lake (along Skyline Blvd (Calif Hwy 5), 3.2 mi n of its junction with the Kings Mtn. road (not the La Honda road)) 594 Comment
  JEPS15591  Castilleja wightii Rimo Bacigalupi with J. R. Sweeney 1954-8-3 4735 San Mateo along upper slopes Edgemar Road (nw San Mateo County) 100 Comment
  JEPS34455  Castilleja wightii L. R. Heckard 1963-7-18 1343 San Mateo just s Crystal Springs Dam (on San Mateo Creek canyon) (along Skyline Blvd (Highway 35), e of Lower Crystal Springs reservoir) 106 Comment
  JEPS60422  Castilleja wightii T. I. Chuang and F. M. Chuang 1969-6-21 6662 b San Mateo about 2 mi s Half Moon Bay road junction and Skyline Boulevard Comment
  JEPS6953  Castilleja wightii Peter H. Raven 1950-4-30 1989 San Mateo Montara Mts. 24 Comment
  UC1618077  Castilleja wightii Donald G. Nelson 1939-6-14 624 San Mateo 3 mi s San Francisco Co. line (Skyline Blvd, due e of Mussel Rock on the coast) Comment
  UC1713545  Castilleja wightii Katharine Brandegee 1917-7-29 San Mateo Tunitas Station; Ocean Shore R.R. Comment
  UC198390  Castilleja wightii Katharine Brandegee 1917-7-15 San Mateo Moss Beach Comment
  JEPS103882  Castilleja wightii T. I. Chuang and F. M. Chuang 1991-7-1 7847 San Mateo ca. 7 miles South of halfmoon Bay. Comment
  JEPS103886  Castilleja wightii T. I. Chuang 1991-7-20 7879 San Mateo Hill just S of Rockaway Beach. Comment
  RSA523428  Castilleja wightii L. R. Heckard, R. C. Bacigalupi 1963-7-2 1328 San Mateo Near home of John gay. Slopes above S. Fk. of San Pedro Creek. SE of town of San Pedro Valley. 152 Comment
  RSA622154  Castilleja wightii John A. Churchill 1974-4-14 744121 San Mateo Half Moon Bay. Route 1 behind Half Moon Bay. Comment
  SEINET10582749  Castilleja wightii Lawrence R. Heckard 1963-7-18 Heckard 3142 San Mateo Along La Honda road from SkyLonda to LaHonda, 2 miles below (SW) junction with Skyline Blvd. 366 Comment
  UC1301213  Castilleja wightii Helen K. Sharsmith 1963-3-23 5252 San Mateo near Pacific City; San Francisco Bay Region 45 Comment
  CAS-BOT-BC39378  Caulanthus lasiophyllus John H. Thomas 1961-5-7 9315 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC40400  Caulanthus lasiophyllus L. R. Abrams 1920-6-1 7503 San Mateo Santa Cruz Mountain Peninsula. Back of Redwood City. Comment
  CAS-BOT-BC40393  Caulanthus lasiophyllus Art Menzies; Barbara Menzies 1965-3-14 s.n. San Mateo San Bruno Mountains. South Power Line Ridge. Comment
  CAS-BOT-BC47934  Ceanothus Elizabeth McClintock 1974-11-13 s.n. San Mateo San Bruno Mountain Comment
  POM136267  Ceanothus X regius C. F. Baker 1902-5-10 804 San Mateo Kings Mountain. Comment
  CAS-BOT-BC48310  Ceanothus cuneatus Margaret A. Barry 1928-5-22 s.n. San Mateo Coal Mine Ridge Comment
  JROH3518  Ceanothus cuneatus var. cuneatus L. R. Abrams 1914-3-1 5057 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA48819  Ceanothus cuneatus var. dubius E. K. Balls 1948-3-19 7869 San Mateo 2 mi. N. of S end of State Rt. 5. 305 Comment
  CAS-BOT-BC51595  Ceanothus oliganthus var. sorediatus Robert Robertson 1954-5-1 104 San Mateo by road 2 miles S.W. La Honda Junction 365 Comment
  JROH3527  Ceanothus oliganthus var. sorediatus W. R. Dudley 1894-9-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Preston's ravine, Searsville Comment
  JROH3530  Ceanothus oliganthus var. sorediatus John H. Thomas 1973-3-12 16492 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM222807  Ceanothus oliganthus var. sorediatus S. S. Berry 1909-3-31 s.n. San Mateo Hill slope near the Hermit. 152 Comment
  CAS-BOT-BC51241  Ceanothus papillosus J. I. McMurphy 1906-5-20 13 San Mateo Santa Cruz Peninsula - King's Mt. Santa Cruz Mts. 457 Comment
  RSA130954  Ceanothus papillosus Josephine Randall 1907-6-29 s.n. San Mateo Santa Cruz Peninsula, King's Mountain Road. Comment
  CAS-BOT-BC52274  Ceanothus thyrsiflorus C. F. B. 1902-4-12 511 San Mateo La Honda Comment
  CAS-BOT-BC52289  Ceanothus thyrsiflorus David D. Keck 1932-5-11 1773 San Mateo Three miles West of Kings Mountain, on road to Tunitas, west slope of Santa Cruz Mountains 457 Comment
  CAS-BOT-BC52290  Ceanothus thyrsiflorus Ira L. Wiggins 1925-4-1 1654 San Mateo On Kings Mountain Road three fourths of a mile above Woodside Comment
  CAS-BOT-BC52294  Ceanothus thyrsiflorus J. I. McMurphy 1906-5-8 12 San Mateo Woodside, Santa Cruz Mts. 121 Comment
  RSA15351  Ceanothus thyrsiflorus Carl B. Wolf 1927-2-28 165 San Mateo Pescadero. Comment
Read comments Aug 5 2015
  UC204089  Ceanothus thyrsiflorus A. D. E. Elmer June, 1903 4603 San Mateo Lake San Andreas Comment
  JROH594  Centaurea calcitrapa John Hunter Thomas 1989-5-9 24702 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC274593  Centaurea calcitrapa Phillip C. Wheeler 1965-8-14 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon 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
  SJSU1124  Centaurea calcitrapa C. W. Sharsmith 1951-10-7 5863 San Mateo Alpine Road 3 mi NW of Palo Alto Comment
  CDA7169  Centaurea melitensis D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  JEPS127866  Centaurea melitensis Adam C. Schneider 2013-5-17 181 San Mateo Crystal Springs Reservoir Comment
  HSC23977  Centaurea melitensis Mary Katherine Wicksten 1971-6-24 118 San Mateo Huddart Park, side of park entrance Comment
  RSA101008  Centaurea melitensis G. Oberlander 1950-5-6 895 San Mateo Near San Anreas Lake, San Francisco Watershed Reserv Comment
  CAS-BOT-BC277231  Centaurea solstitialis Ned Cahill 1974-7-14 351 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH604  Centaurea solstitialis John Hunter Thomas 1977-6-16 18761 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  POM287523  Centaurium venustum Lyman Benson 1930-4-17 2068 San Mateo Stanford University. 122 Comment
  SJSU15233  Centromadia pungens subsp. pungens Toni Corelli 2013-8-16 455 San Mateo Ravenswood Open Space Preserve, east end of Bay Road, East Palo Alto 4 Comment
  CAS-BOT-BC279329  Centromadia pungens subsp. pungens L. R. Abrams 1903-9-27 4017 San Mateo Menlo Park Comment
  UCD164003  Cerastium fontanum subsp. vulgare Peter Rubtzoff 1977-11-24 9141 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-BC388391  Cerastium glomeratum Fred Hemphill 1973-3-17 618 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH1691  Cerastium glomeratum John H. Thomas 1968-3-17 14191 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1693  Cerastium glomeratum John H. Thomas 1971-4-24 15772 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH149  Ceratophyllum demersum Alan Grundman 1976-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET11914804  Cercocarpus betuloides Unknown 1932-1 8945 San Mateo Los Francos Woods Comment
Read comments Nov 1 2021
  JROH3614  Cercocarpus betuloides var. betuloides W. R. Dudley 1903-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Canon E. of Searsville Reservoir Comment
  CDA4770  Chamaesyce serpens A. Roach 1970-10-22 San Mateo Southern Pacific Railroad, Menlo Park. 0 Comment
  JROH1818  Chenopodium californicum John H. Thomas 1966-4-29 11585 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1820  Chenopodium californicum D. E. Breedlove 1971-5-11 19334 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Pinon Road along fence Comment
  RSA195571  Chenopodium californicum John H. Thomas 1966-4-29 11585 San Mateo Jasper Ridge Biological Experimental Area, 5 miles SW of Palo Alto. Comment
  CAS-BOT-BC471350  Chenopodium rubrum var. humile L. R. Abrams; I. L. Wiggins 1930-11-13 178 San Mateo Margin of pond at Salada Beach Comment
  JROH5858  Chenopodium rubrum var. humile Toni Corelli 2003-11-29 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; dry lake bed, Corte Madera Creek delta Comment
  JROH1827  Chenopodium vulvaria Ann Lambrecht 2005-8-1 17 San Mateo Jasper Ridge Biological Preserve, Stanford University; Bear Creek crossing, east bank, about 2m from stream's edge Comment
  CAS-BOT-BC497727  Chlorogalum pomeridianum John H. Thomas 1963-5-20 10127 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC497729  Chlorogalum pomeridianum Elizabeth McClintock 1965-3-28 s.n. San Mateo Plants of San Bruno Mountain, Trillium Gulch Comment
  SD39112  Chlorogalum pomeridianum Edith A. Purer 1933-5-31 3618 San Mateo Grade to Half Moon Bay. Comment
  CAS-BOT-BC499311  Chlorogalum pomeridianum var. divaricatum J. H. Thomas 1958-6-11 s.n. San Mateo About 4.3 miles due east of Belmont near Crystal Springs Reservoir 91 Comment
  HSC15442  Chlorogalum pomeridianum var. divaricatum J. Wendell Howe 1930-5-27 152 San Mateo Pebble Beach, near ocean Comment
  JROH4652  Chlorogalum pomeridianum var. pomeridianum John Hunter Thomas 1983-6-29 22706 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM165065  Chorizanthe cuspidata var. cuspidata A. D. E. Elmer 1903-05 s.n. San Mateo San Pedro Comment
  POM87940  Chorizanthe cuspidata var. marginata L. R. Abrams 1901-05 1603 San Mateo Colma Comment
  SEINET10623943 Image available Chorizanthe cuspidata var. marginata Adolph D. E. Elmer Elmer 4828 San Mateo San Pedro, California. Comment
  UCR122974  Chrysanthemum maximum George K. Helmkamp, E. A. Helmkamp 2001-6-2 6763 San Mateo Central Coast, Pillar Point Harbor, about 4 miles north of Half Moon Bay 6 Comment
  RSA121897  Chrysolepis chrysophylla C. M. Belshaw 1936-1-25 1462 San Mateo Kings Mountain road, 4.5 miles west of Woodside; South Coast Range. Comment
  SJSU114  Chrysolepis chrysophylla var. minor C. D. Duncan 1929-9-27 San Mateo Kings Mt Comment
  JROH627  Cichorium intybus Ann Lambrecht 2007-8-29 31 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek below Dennis Martin marker Comment
  CAS-BOT-BC277882  Cirsium brevistylum Fred Hemphill 1973-5-14 825 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC100942  Cirsium fontinale var. fontinale J. W. Congdon 1901-7-27 s.n. San Mateo Spring Valley Comment
  CDA1228  Cirsium fontinale var. fontinale T. C. Fuller 1960-6-23 4541 San Mateo E shore Upper Crystal Springs Lake; 0.7 miles S/ road across lake. 0 Comment
  UC922266  Cirsium fontinale var. fontinale H. K. Sharsmith 1937-6-3 3951 San Mateo about 3 mi w of San Mateo; Crystal Springs Lake 152 Comment
  SEINET14157453  Cirsium fontinale var. fontinale Unknown San Mateo Comment
  UCSC007732  Cirsium occidentale Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH629  Cirsium occidentale var. occidentale John H. Thomas 1974-6-30 17466 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  RSA18266  Cirsium occidentale var. venustum C. B. Wolf 1927-6-27 457 San Mateo Los Troncos Creek, 2 mi back of Stanford University. Comment
  CAS-BOT-BC280519  Cirsium quercetorum Peter H. Raven 1950-6-3 2261 San Mateo Near San Andreas Lake 121 Comment
  CAS-BOT-BC280530  Cirsium quercetorum John H. Thomas 1961-5-7 9271 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JEPS80473  Cirsium quercetorum L. R. Heckard 1981-5-25 5663 San Mateo on e side of the s end Lower Crystal Springs Reservoir (nw of junction (freeway interchange) of highway state <sic> 92 and U. S. 280) Comment
  UC615438  Cirsium quercetorum Beryl O. Schreiber 1932-5-29 314 San Mateo Crystal Springs Comment
  UC895026  Cirsium quercetorum S. F. Blake 1927-7-8 10006 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC280517  Cirsium quercetorum John Thomas Howell 1939-6-16 14740 San Mateo Near San Andreas Lake Comment
  CAS-BOT-BC280526  Cirsium quercetorum Alice Eastwood; John Thomas Howell 1938-6-26 6054 San Mateo 2 miles south of San Gregorio Comment
  UC962069  Cirsium quercetorum E. E. Gilbert 1952-5-23 San Mateo e margin of Crystal Springs Lake Crystal Springs Lake Comment
  CAS-BOT-BC285869  Cirsium vulgare George Oberlander 1949-8-20 335 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  CAS-BOT-BC223882  Cistus Greg de Nevers 1996-5-22 10811 B San Mateo Edgewood County Park 121 Comment
  JROH1830  Cistus incanus D. E. Breedlove 1971-5-31 19350 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  CAS-BOT-BC172091  Clarkia davyi Peter H. Raven 1950-6-3 22301 San Mateo Roadside cut, Millbrae Ave., Millbrae 91 Comment
  CAS-BOT-BC172000  Clarkia epilobioides Robert F. Hoover 1941-4-23 4904 San Mateo Redwood City Hills Comment
  JROH5820  Clarkia purpurea subsp. quadrivulnera John Rawlings 2016-5-10 1782 San Mateo Jasper Ridge Biological Preserve, Stanford University. Eastern edge of the Dennis Martin Site 77 Comment
  CAS-BOT-BC163971  Clarkia purpurea subsp. quadrivulnera W. R. Dudley 1900-5-19 s.n. San Mateo One mile West of summit of La Honda Road Comment
  SEINET4145649  Clarkia purpurea subsp. quadrivulnera A. A. Heller 1906-6-8 8384 San Mateo Near Ocean View, San Francisco Comment
  CAS-BOT-BC164566  Clarkia purpurea subsp. viminea John H. Thomas 1971-5-2 15844 San Mateo Near intersection of Canada and Edgewater roads. About 4 miles SW of center of Redwood City 304 Comment
  JROH3008  Clarkia purpurea subsp. viminea Duncan M. Porter 1960-5-26 702 San Mateo Jasper Ridge Biological Preserve, Stanford University; N part of ridge, above Searsville Lake Comment
  CAS-BOT-BC165146  Clarkia rubicunda Phillip C. Wheeler 1965-6-19 s.n. San Mateo [Serra] Sierra Point 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-BC165165  Clarkia rubicunda Peter H. Raven 1957-6-24 10972 San Mateo North of the light house, Pigeon Point Comment
  CAS-BOT-BC165173  Clarkia rubicunda W. R. Dudley 1902-9-21 s.n. San Mateo Near Crystal Springs Reservoir Comment
  CAS-BOT-BC165175  Clarkia rubicunda Hester R. Davis 1920-6-1 180 San Mateo Back of Redwood City Comment
  JEPS17914  Clarkia rubicunda Rimo Bacigalupi 1955-8-4 5445 San Mateo just s Pedro Point (high above the ocean, w end of mountain); Montara Mtn. Comment
  JEPS29416  Clarkia rubicunda L. R. Heckard 1961-7-16 1263 San Mateo ne transmitting station KQED (near summit of mountain); San Bruno Mt. 335 Comment
  SBBG5002  Clarkia rubicunda H. and M. Dearing 1951-8-17 6945 San Mateo Pigeon Point, N of Santa Cruz Comment
  UC112979  Clarkia rubicunda Katharine Brandegee 1908-7-26 San Mateo near Half Moon Bay; Moss Beach Comment
  UC1279917  Clarkia rubicunda Peter H. Raven 1957-6-30 11016 San Mateo 5.3 mi e Pescadero (on road along creek); Pescadero Creek Comment
  UC762860  Clarkia rubicunda R. F. Hoover 1941-5-20 5108 San Mateo Redwood City hills Comment
  OBI12094  Clarkia rubicunda Lewis S. Rose 1957-7-6 57117 San Mateo Skyline blvd. W of San Mateo 183 Comment
  RSA18311  Clarkia rubicunda Carl B. Wolf 1927-7-14 600 San Mateo Summit of Kings Mountain Rd. Comment
  CAS-BOT-BC439293  Claytonia exigua subsp. exigua John H. Thomas 1974-4-11 17131 San Mateo Area to the SE of Canada Road and Edgewood Road. NW of Woodside. 152 Comment
  JROH3331  Claytonia exigua subsp. exigua John H. Thomas 1958-2-15 6992 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3333  Claytonia exigua subsp. exigua John H. Thomas 1971-4-24 15771 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5709  Claytonia parviflora subsp. parviflora John Rawlings 2015-3-15 1348 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 8 110 Comment
  SEINET182860 Image available Claytonia perfoliata subsp. perfoliata John Campbell 1925-1-26 San Mateo Burlingame. Comment
  CAS-BOT-BC91486  Clematis lasiantha C. F. Baker 1902-4-12 499 San Mateo La Honda. 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
  SJSU10609  Clematis lasiantha E. C. Carbett 1961-4-8 284 San Mateo Searsville L Park at head of San Francisquito Cr Comment
  SEINET12099147  Clematis lasiantha Unknown 1932-1 9022 San Mateo Los Trancos Woods Comment
  JROH2874  Clinopodium douglasii John H. Thomas 1971-5-30 15954 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389745  Clinopodium douglasii M. Danielson 1965-5-15 s.n. San Mateo Western extension of Edgewood Road - Redwood City Comment
  CAS-BOT-BC499370  Clintonia andrewsiana J. H. Thomas 1954-6-11 4269 San Mateo Along San Gregorio Creek, 1.5 mi w of La Honda 106 Comment
  UC729849  Clintonia andrewsiana Carl B. Wolf 1929-5-25 3736 San Mateo 2 mi from Pescadero (on Alpine Creek); Alpine Creek Comment
  CAS-BOT-BC499397  Clintonia andrewsiana A. D. E. Elmer 1903-5-1 4331 San Mateo Butano Creek Comment
  CAS-BOT-BC499404  Clintonia andrewsiana L. R. A. 1902-5-22 2465 San Mateo Kings Mountain Comment
  JEPS6369  Collinsia heterophylla Rimo Bacigalupi and G. T. Robbins 1954-6-18 4551 San Mateo 1/4 mi w, along Alpine Rd Skyline Blvd 701 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-BC240933  Collinsia multicolor Walter Knight; Irja Knight 1965-4-4 1014 San Mateo San Bruno Mountain. Bitter Cherry Ravine 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
  RSA18363  Collomia heterophylla C. B. Wolf 1929-5-25 3725 San Mateo 1/4 mi. no. of base of La Honda Grade on road to Woodside Comment
  RSA59639  Collomia heterophylla Verne Grant, Alva Grant 1950-6-28 8921 San Mateo west side of Kings Mt. on Tunitas Creek road Comment
  RSA59640  Collomia heterophylla Verne Grant, Alva Grant 1950-5-19 8902 San Mateo On w. side of Kings Mt. 1/2 mile w. of Skyline road on Tunitas Creek road. Comment
  JROH218  Conium maculatum John Hunter Thomas 1982-5-18 20947 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Searsville Lake near bridge Comment
  RSA176421  Conium maculatum John H. Thomas 1964-7-3 10442 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto , along road above Searsville Lake Comment
  RSA492534  Conium maculatum Lyman Benson 1937-7-25 8468 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  JROH1849  Convolvulus arvensis John Hunter Thomas 1982-7-2 21056 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  SEINET5547340  Convolvulus arvensis H. S. Gentry 1931-1 94 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC285991  Conyza bonariensis Peter H. Raven 1950-6-3 2222 San Mateo Along Millbrae Ave., Millbrae 60 Comment
  CAS-BOT-BC286205  Conyza canadensis R. E. Frenkel 1963-12-7 323 San Mateo San Francisco Water District, 1.5 miles north of Halfmoon [Half Moon] Bay Club Comment
  JROH4763  Corallorhiza striata J. I. McMurphy 1906-5-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA209069  Cordylanthus pilosus subsp. hansenii L. S. Rose; 1941-8-9 41362 San Mateo Woodside 60.0 Comment
  RSA40318  Cordylanthus pilosus subsp. pilosus L. S. Rose 1941-8-9 41362 San Mateo Woodside. 549 Comment
  UC750689  Cordylanthus pilosus subsp. pilosus Lewis S. Rose 1941-8-9 41362 San Mateo Woodside 548 Comment
  JROH658  Coreopsis tinctoria Ruth Porter 1997-11-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; low flow crossing along San Francisquito Creek Comment
  CAS-BOT-BC101481  Corethrogyne filaginifolia W. R. Dudley 1896-4-6 s.n. San Mateo Near Crystal Springs Comment
  CAS-BOT-BC209820  Cornus glabrata Alice Eastwood 1912-6-10 344 San Mateo Crystal Springs Comment
  POM287429  Cornus nuttallii Lyman Benson 1930-5-3 2087 San Mateo Near Woodside. 305 Comment
  CAS-BOT-BC210352  Cornus sericea J. I. McMurphy 1906-5-11 22 San Mateo Santa Cruz Peninsula. Los Trancos Creek, Santa Cruz Mts. Comment
  SEINET12137024  Cornus sericea subsp. occidentalis J. I. McMurphy 1906-1 22 San Mateo Los Francos Creek, Santa Cruz Mts Comment
  JROH1881  Cornus sericea subsp. sericea John Hunter Thomas 1991-5-2 25014 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  JROH1883  Cornus sericea subsp. sericea John Hunter Thomas 1991-8-4 25080 San Mateo Jasper Ridge Biological Preserve, Stanford University; along causeway Comment
  JROH1331  Corylus cornuta subsp. californica John H. Thomas 1959-4-5 7668 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1333  Corylus cornuta subsp. californica John H. Thomas 1974-5-3 17246 San Mateo Jasper Ridge Biological Preserve, Stanford University; in redwood area below dam Comment
  SEINET12034011  Corylus cornuta var. californica J. H. Thomas 1959-1 7668 San Mateo Jasper Ridge,about 5 mi SW of Palo Alto 91 Comment
  JROH3636  Cotoneaster pannosus Judith Wagner 1974-11-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC287302  Cotula australis George Oberlander 1951-3-30 1161 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  CHSC57065  Cotula coronopifolia Steven Triano 1988-5-24 202 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  RSA18353  Cotula coronopifolia C. B. Wolf 1927-1-29 464 San Mateo Pebble Beach, coast south of Pescadero. Comment
  CAS-BOT-BC291463  Cotula coronopifolia Catherine A. Toschi 1963-2-23 63 :33 San Mateo North slope San Bruno Mountains above Crocker Avenue 152 Comment
  CAS-BOT-BC291473  Cotula coronopifolia George Oberlander 1950-5-6 933 San Mateo Marsh, north boundary, San Francisco Watershed Reserve Comment
  CAS-BOT-BC291475  Cotula coronopifolia David D. Keck 1932-3-24 1403 San Mateo Redwood City at border of San Francisco Bay Comment
  SJSU2294  Cotula coronopifolia C. W. Sharsmith 1950-4-16 6623 San Mateo near Pescadero Point Comment
  CAS-BOT-BC427829  Crassula connata John H. Thomas 1958-3-19 7053 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 91 Comment
  CAS-BOT-BC427834  Crassula connata A. D. E. Elmer 1903-4-1 4719 San Mateo San Bruno Hills Comment
  UCSC007736  Crassula connata Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH3652  Crataegus monogyna John H. Thomas 1965-4-10 10560 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3662  Crataegus monogyna John Hunter Thomas 1992-5-19 25339 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH669  Crepis vesicaria subsp. taraxacifolia John Hunter Thomas 1989-5-9 24696 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1956  Croton setiger Duncan M. Porter 1960-10-12 727 San Mateo Jasper Ridge Biological Preserve, Stanford University; flat area on crest of the ridge (above area G) Comment
  SD38456  Croton setiger Edith A. Purer 1933-8-25 5513 San Mateo Skyline Drive, along the roadside Comment
  JROH4995  Crypsis schoenoides John Hunter Thomas 1988-10-17 24598 San Mateo Jasper Ridge Biological Preserve, Stanford University; on delta in lake Comment
  UC78495  Cryptantha flaccida C. F. Baker 1902-4-6 468 San Mateo Crystal Springs Lake Comment
  JROH5669  Cryptantha microstachys John Rawlings 2014-5-6 1223 B San Mateo Jasper Ridge Biological Preserve, Stanford University; on the top of Trevor's Knoll, about 70 m north of Trail 10. 181 Comment
  RSA704404  Cupressus abramsiana subsp. butanoensis John Silba 2004-12-28 B- 424 San Mateo CA., San Mateo County., Pescadero County Park, on Botano Ridge, ca. 5-5.5 miles East of Dearborn Park Road, 375 Comment
  SEINET3863377 Image available Cupressus macrocarpa Barbara Schneider 1963-2-21 18 San Mateo By ocean. One intersection N of Skyline Blvd. and Westridge Ave. on Skyline Blvd.; 0 30 Comment
  RSA130967  Cuscuta salina S. D. Halsey 1908-9-26 s.n. San Mateo near Cooley's Landing Comment
  UCD34111  Cyclospermum leptophyllum Beecher Crampton 1976-7-31 9404 San Mateo Redwood City. Comment
  CAS-BOT-BC287342  Cynara cardunculus John Thomas Howell 1956-11-14 31961 San Mateo Bayshore Highway just S of Main St, Redwood City Comment
  POM286864  Cynoglossum grande Lyman Benson 1929-3-2 988 San Mateo Hill above Lake Searsville. Comment
  RSA130412  Cynoglossum grande Josephine Randall 1908-3-22 s.n. San Mateo Corte de Madera Canyon near Alpine Road Comment
  SD67319  Cynoglossum grande Darley F. Howe 1967-4-14 4349 San Mateo San Francisco Game Reserve near San Bruno 89 Comment
  CAS-BOT-BC217971  Cynosurus echinatus Elizabeth McClintock; Paul Reeberg 1989-6-18 s.n. San Mateo Saddle Area, San Bruno Mountains 213 Comment
  JROH4387  Cyperus eragrostis John H. Thomas 1968-10-29 14855 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC23970  Cyperus eragrostis Mary Katherine Wicksten 1971-7-13 170 San Mateo Huddart Park by drinking fountain Comment
  UCD141113  Cyperus eragrostis Lewis S. Rose 1965-9-20 65107 San Mateo Burlingame, Trousdale Dr. and California Dr. 9 Comment
  CAS-BOT-BC435184  Cypselea humifusa George Oberlander 1949-8-20 372 San Mateo San Francisco Watershed Reserve. Upper Crystal Spr. Lake 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
  UCD60479  Danthonia californica R. Tofsrud 1947-6-14 s.n. San Mateo 1-2 mi. N of Pescadero on road to San Gregorio. Comment
  SEINET10860712  Danthonia californica Adolph D. E. Elmer Elmer 4707 San Mateo Crystal Springs Lake. Comment
  JROH1905  Datisca glomerata Carol Zabel 1989-8-11 23 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek bank near intersection with Bear Creek Comment
  UC1122940  Daucus pusillus N. K. Carlson 1935-6-29 108 San Mateo 1 mi. s. Pescadero; Santa Cruz Quad. Comment
  JEPS35779  Deinandra corymbosa V. F. Hesse 1964-5-26 3201 San Mateo near coast Whitehouse Creek Road 45 Comment
  SD30844  Deinandra corymbosa Edith A. Purer 1933-5-31 3662 San Mateo Spring Valley Lakes. Comment
  CAS-BOT-BC299208  Deinandra corymbosa subsp. corymbosa A. D. E. Elmer 1903-7-1 4963 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC299211  Deinandra corymbosa subsp. corymbosa Lewis S. Rose 1931-8-28 s.n. San Mateo Moss Beach Comment
  CAS-BOT-BC299225  Deinandra corymbosa subsp. corymbosa H. M. Hall 1930-3-24 12786 San Mateo Near Pescadero 10 Comment
  CAS-BOT-BC299192  Deinandra corymbosa subsp. corymbosa David D. Keck 1931-10-5 1292 San Mateo Salada Beach beside the golf course Comment
  CAS-BOT-BC300005  Deinandra lobbii Roxana Stinchfield 1915-10-14 258 San Mateo Above Basaltic Collumns near Standford University, Santa Cruz Mountain Peninsula Comment
  SJSU8526  Deinandra pentactis M. Perry 1979-10-5 210 San Mateo Cloverdale Road 0.25 mi N of its junction with Gazos Creek Road E of Pigeon Point Comment
  CAS-BOT-BC292118  Delairea odorata John H. Thomas 1967-2-9 12404 San Mateo Montara. Near 3rd St. and Farallones Ave. Comment
  CAS-BOT-BC10292  Delphinium hesperium Elizabeth McClintock 1979-5-28 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  UCD18536  Delphinium nudicaule Roman Gankin 1950-7-2 3 San Mateo east side of the Peninsula Coast Range, off of the King's Mtn. Rd. behind Woodside. 609 Comment
  UC136351  Delphinium variegatum C. F. Baker May 1902 748 San Mateo Woodside Comment
  RSA0008971  Delphinium variegatum subsp. apiculatum D. D. Keck 1933-5-11 2309 San Mateo Crystal Springs Lake Comment
  POM148952  Delphinium variegatum subsp. variegatum A. D. E. Elmer 1903-05 s.n. San Mateo Crystal Springs Lake. Comment
  POM176883  Dendromecon rigida Roxana S. Ferris 1920-4-26 1954 San Mateo Slopes above Peters Creek, Santa Cruz Mountain Peninsula 610 Comment
  CAS-BOT-BC628  Dendromecon rigida subsp. rigida Daniel Cohen 1953-5-9 83 San Mateo Near Skylind Drive on La Honda Road. Comment
  JEPS71181  Deschampsia cespitosa subsp. holciformis unknown 1919-7-22 209 San Mateo Laguna de los Frijoles Comment
  SJSU15414  Deschampsia elongata Toni Corelli 2010-5-21 670 San Mateo Pescadero State Beach and Marsh Natural Preserve. North Pond Trail 20 Comment
  CAS-BOT-BC708  Dicentra formosa subsp. formosa Alice Eastwood 1922-6-11 s.n. San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC500896  Dichelostemma capitatum Mary Helen Kelson 1956-4-22 137 San Mateo Albert Way, Hillsborough, 1 mile from Skyline Blvd. Comment
  JROH4659  Dichelostemma capitatum subsp. capitatum John Hunter Thomas 1985-4-25 23563 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM169473  Dichelostemma capitatum subsp. capitatum C. F. Baker 1903-4-6 1891 San Mateo San Bruno Hills near S.F. [San Francisco] 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
  JROH4662  Dichelostemma congestum John H. Thomas 1964-4-29 10333 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oakwoodland near Searsville end of ridge Comment
  JROH4664  Dichelostemma congestum John Hunter Thomas 1977-6-16 18777 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS125950  Dichondra donelliana D. W. Taylor 2000-7-20 17532 San Mateo Montara Mountain, along dirt road 1 mile W from North Peak Comment
  JROH5078  Digitaria sanguinalis John H. Thomas 1974-10-29 17648 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accomodate water from Corte Madera Cr. Comment
  JROH5082  Digitaria sanguinalis Ann Lambrecht 2004-7-21 13 San Mateo Jasper Ridge Biological Preserve, Stanford University. Corte Madera Creek near intersection with Trail 12. Comment
  OBI22313  Digitaria sanguinalis Lewis S. Rose 1965-9-20 65108 San Mateo Burlingame, Trousdale Dr & Californica Dr 9 Comment
  SEINET8375013  Diplacus aridus J. I. McMurphy 1906-5-20 25 San Mateo Kings Mt. Santa Cruz Mts. Comment
  SEINET13682892  Diplacus aurantiacus E. Crawford 1982-9-25 s.n. San Mateo On San Gregario Road, ca 2 miles W of Redwood Terrace. 73 Comment
  RSA438392  Dipsacus fullonum E. S. Spalding 1923-8-3 s.n. San Mateo Near Pulgas Tunnel Comment
  CAS-BOT-BC121869  Dirca occidentalis Dennis E. Breedlove 1964-2-7 5916 San Mateo In San Andreas Canyon below the dam. Comment
  JROH4201  Dirca occidentalis John H. Thomas 1968-2-11 14144 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4203  Dirca occidentalis John H. Thomas 1968-2-11 14144 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4212  Dirca occidentalis John Hunter Thomas 1981-4-5 20282 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
  POM202469  Dirca occidentalis L. S. Rose 1933-6-9 s.n. San Mateo San Andreas Lake Comment
  RSA396845  Dirca occidentalis D. E. Breedlove 1964-2-7 5916 San Mateo In San Andreas Canyon below the dam Comment
  SBBG32296  Dirca occidentalis L. S. Rose 1964-3-9 64004 San Mateo N end of Crystal Springs Lake 121 Comment
  UCD116838  Dirca occidentalis Lewis S. Rose 1964-3-9 64004 San Mateo N. end of Crystal Springs Lake. 121 Comment
  SEINET5548310  Disporum hookeri H. S. Gentry 1931-1 32 San Mateo Collected 2 miles W of San Bruno. Comment
  RSA76139  Disporum hookeri var. hookeri George H. Ward 1950-4-8 949 San Mateo 1 mile N of La Honda. Comment
  POM169800  Disporum smithii A. D. E. Elmer 1903-05 4697 San Mateo Butano Creek 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
  JROH3376  Dodecatheon clevelandii subsp. patulum Ellen Searby 1955-4-1 78 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3387  Dodecatheon hendersonii John Hunter Thomas 1981-4-5 20286 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek Comment
  HSC17872  Dodecatheon hendersonii Donald A. Johansen 1940-3-9 810 San Mateo Skyline Blvd. W of Burlingame Comment
  CAS-BOT-BC159538  Drymocallis glandulosa var. glandulosa Le Roy Abrams 1902-5-20 2466 San Mateo King's Mountain Comment
  CAS-BOT-BC159548  Drymocallis glandulosa var. glandulosa George Oberlander 1950-4-2 559 San Mateo Near San Andreas Lake - San Francisco Watershed Reserve Comment
  JROH3735  Drymocallis glandulosa var. wrangelliana D. E. Breedlove 1971-5-31 19349 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  CAS-BOT-BC67887  Dryopteris arguta Margaret A. Barry 1938-5-29 s.n. San Mateo Coal Mine Ridge Comment
  JROH32  Dryopteris arguta John H. Thomas 1976-4-2 18076 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH42  Dryopteris arguta John H. Thomas 1964-11-29 10543 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek below dam. Comment
  UC1063780  Dryopteris arguta T. Tyrrell 1928-9-26 6 San Mateo 2 mi s San Gregorio (Plot 13); Santa Cruz Quadrangle 91 Comment
  UC1063782  Dryopteris arguta C. M. Belshaw 1935-1-25 1460 San Mateo 2.8 mi w Woodside; Santa Cruz Quadrangle 457 Comment
  RSA11000  Dryopteris arguta C. B. Wolf 1928-3-14 1537 San Mateo La Honda grade in the Santa Cruz Mountains 152 Comment
  RSA693711  Dryopteris arguta E. S. Spalding 1923-8-3 s.n. San Mateo Near Pulgas Tunnel Comment
  CAS-BOT-BC410871  Dudleya caespitosa Reid Moran 1951-7-3 3499 San Mateo Devils Slide, 2 miles north of Montara Comment
  CAS-BOT-BC428360  Dudleya farinosa C. F. Baker 1903-6-30 3440 San Mateo Pilarcitos Comment
  UC830943  Dudleya farinosa Lewis S. Rose 1937-9-5 37646 San Mateo Mussel Rocks 60 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
  CDA20206  Echinochloa colona J. Eide 2003-8-22 PDR 1424868 San Mateo San Francisco Bay Area; Residence at 74 Atherton Ave, Atherton. 0 Comment
  JROH5603  Echinochloa crus-galli John Rawlings 2013-9-12 1207 San Mateo Jasper Ridge Biological Preserve, Stanford University; Corte Madera Creek delta. 105 Comment
  JROH4306  Echinodorus berteroi John Hunter Thomas 1979-9-9 19723 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of Searsville Lake Comment
  JROH4407  Eleocharis macrostachya John Hunter Thomas 1982-8-13 21138 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC942857  Eleocharis montevidensis Lewis S. Rose 1950-5-20 50146 San Mateo hills W of Redwood City (Emerald Lake region) 243 Comment
  CAS-BOT-BC229011  Eleocharis palustris Elizabeth McClintock; Paul Reeberg 1989-4-6 s.n. San Mateo San Bruno Mountains. At the base of Owl Canyon 45 Comment
  POM144786  Eleocharis palustris A. D. E. Elmer 1903-07 4767 San Mateo San Pedro. Comment
  CAS-BOT-BC203880  Elymus X hansenii Elizabeth McClintock; Paul Reeberg 1989-5-30 s.n. San Mateo San Bruno Mountains. On east-facing slope below Ridge Trail; Juncus Ravine 182 Comment
  SD38364  Elymus condensatus Edith A. Purer 1932-7-18 4006 San Mateo Half Moon Bay, sand dunes Comment
  UCD61811  Elymus glaucus Beecher Crampton 1962-6-11 6497 San Mateo N. city limits of Pacfica; along State Hwy. 1 just southwest of its junction with Skyline Blvd. Comment
  CAS-BOT-BC203690  Elymus glaucus subsp. glaucus Margaret A. Barry 1937-6-22 178 San Mateo Coal Mine Ridge Comment
  UCSC007753  Elymus mollis subsp. mollis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC235207  Elymus multisetus Phillip C. Wheeler 1965-5-25 s.n. San Mateo San Bruno Mountain. Brisbane Canyon Comment
  CAS-BOT-BC235209  Elymus multisetus David D. Keck 1932-5-6 1469 San Mateo Belmont Comment
  CAS-BOT-BC235210  Elymus multisetus John H. Thomas 1961-5-14 9384 B San Mateo Just north of dam on San Mateo Creek 121 Comment
  JROH5117  Elymus multisetus John H. Thomas 1962-5-31 9897 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grassland near Westridge end of ridge Comment
  JROH5128  Elymus multisetus John Hunter Thomas 1981-5-19 20604 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD62711  Elymus trachycaulus subsp. trachycaulus L. R. Abrams 1902-5-11 2452 San Mateo Crystal Springs. Comment
  CAS-BOT-BC166141  Epilobium canum subsp. canum John Thomas Howell 1932-10-19 10853 San Mateo Skyline Boulevard at summit of hills east of Half Moon Bay Comment
  HSC16554  Epilobium canum subsp. canum L. S. Rose 1965-9-4 65099 San Mateo Skyline Blvd. and Half Moon Bay Rd., Cahill Ridge 244 Comment
  RSA184862  Epilobium canum subsp. canum L. S. Rose 1965-9-4 65099 San Mateo Skyline Blvd and half Moon Bay Road, Cahill Ridge 244 Comment
  UC1073372  Epilobium canum subsp. canum George B. Rossbach 1955-10-23 364 San Mateo w Crystal Springs Lake (steep bank above road); Cahill Ridge Comment
  SD38385  Epilobium ciliatum subsp. watsonii Edith A. Purer 1933-7-27 5340 San Mateo High stabilized sand dunes, Pigeon Point. Comment
  JEPS126003  Epipactis helleborine D. W. Taylor 2000-8-1 17539 San Mateo Montara Mountain; Scarper Peak, western slope of peak near summit Comment
  UC205082  Equisetum A. D. E. Elmer May, 1903 4602 San Mateo Cemeteries, San Mateo Co. Comment
  CAS-BOT-BC57029  Equisetum arvense Walter Knight; Irja Knight 1964-5-30 s.n. San Mateo Colma Canyon Comment
  JROH56  Equisetum arvense John Hunter Thomas 1982-7-2 21049 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing Comment
  CAS-BOT-BC57181  Equisetum hyemale subsp. affine Roxana S. Ferris 1921-3-20 2113 San Mateo Pescadero Creek 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
  POM9508  Equisetum telmateia var. braunii C. F. Baker 1902-3-18 324 San Mateo West side King s Mountain. Comment
  JROH5146  Eragrostis pectinacea var. pectinacea John Rawlings 2011-8-2 1079 San Mateo Jasper Ridge Biological Preserve, Stanford University. In the dry creek bed of San Francisquito Creek near the Dennis Martin site. 71 Comment
  CAS-BOT-BC291202  Erechtites glomeratus E. McClintock; Phillip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. Top of ridge, east of Nike station Comment
  CAS-BOT-BC299883  Erechtites glomeratus Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC299885  Erechtites glomeratus Robert F. Thorne; P. Everett 1963-6-9 32212 San Mateo Near TV tower on top of San Bruno Mountain 335 Comment
  CDA4552  Erechtites glomeratus J. Campbell 1958-4-18 322 -58 San Mateo 0 Comment
  CAS-BOT-BC291242  Erechtites minimus J. H. Thomas 1955-12-6 5515 San Mateo Growing on the upstream face of Pilarcitos Lake Dam Comment
  UC172733  Eremalche parryi Alice Eastwood 1900-4-17 San Mateo San Bruno Ranges Comment
  RSA132467  Eremocarpus setiger John H. Thomas 1959-8-22 8076 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  JROH3146  Eriastrum abramsii John H. Thomas 1961-6-7 9533 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC25996  Ericameria parishii James Henrickson 1969-10-19 4189 San Mateo 6 mi. NNW of Descanso on Boulder Creek Rd. Comment
Read comments Dec 11 2013
  UCSC007751  Erigeron canadensis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC295082  Erigeron glaucus John H. Thomas 1961-5-12 9327 San Mateo San Bruno Mountain in northern part of county 396 Comment
  POM204314  Erigeron glaucus I. L. Wiggins 1929-7-4 3798 San Mateo Pescadero Beach Comment
  SJSU2274  Erigeron glaucus C. W. Sharsmith 1947-4-13 6755 San Mateo Pescadero Beach, near Pescadero Point Comment
  POM289038  Erigeron glaucus Lyman Benson 1930-6-14 2152 San Mateo San Gregorio. 30 Comment
  SD234039  Erigeron glaucus Virginia Pinkus Ryder 1964-2-21 77 San Mateo 1 mile past Greyound Rock. 29 Comment
  CAS-BOT-BC300066  Erigeron philadelphicus Phillip C. Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. N. W. Radio Road Comment
  JROH2718  Eriodictyon californicum John H. Thomas 1970-7-5 15667 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2727  Eriodictyon californicum Raymond R. White 1974-6-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; area H Comment
  JROH2730  Eriodictyon californicum John Hunter Thomas 1981-5-14 20574 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET6744709 Image available Eriodictyon californicum L. S. Rose 1941-7-2 41288 San Mateo Kings Mountain, California. Comment
  UC24053  Eriodictyon californicum J. Burtt Davy Jun 21 1893-Jun 23 1893 1137 San Mateo Pilarcitos Lake and Canyon Comment
  CAS-BOT-BC216244  Eriodictyon californicum Josephine D. Randall 1907-7-24 166 San Mateo Road to Crystal Springs Lake, Santa Cruz Peninsula Comment
  UC429743  Eriogonum gracile L. R. Abrams 1902-9-21 2988 San Mateo Crystal Lake Comment
  CAS-BOT-BC251996  Eriogonum latifolium A. D. E. Elmer 1903-7-1 4557 San Mateo Half Moon Bay Comment
  POM165067  Eriogonum latifolium A. D. E. Elmer 1903-07 4557 San Mateo Half Moon Bay. Comment
  RSA176769  Eriogonum latifolium John H. Thomas 1963-7-19 10185 San Mateo Ano Nuevo Island, about 0.5 mile off shore and about 20 mi. NW of Santa Cruz. Comment
  SD88537  Eriogonum latifolium Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of Half Moon Bay Comment
  UC77427  Eriogonum latifolium C. F. Baker 1903-6-30 3359 San Mateo Pilarcitos Comment
  UCR121581  Eriogonum latifolium George K. Helmkamp, E. A. Helmkamp 1999-6-28 4986 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  CAS-BOT-BC251989  Eriogonum latifolium David D. Keck 1931-10-5 1287 San Mateo One mile north of Salada Beach, 200 m. from ocean on sand dunes Comment
  POM279949  Eriogonum latifolium Lyman Benson 1930-8-15 2565 San Mateo San Gregorio. Comment
  RSA766114  Eriogonum latifolium D. D. Keck 1931-10-5 1287 San Mateo 1 mile north of Salada Beach, 200 meters from the ocean. Comment
  SEINET11938062  Eriogonum latifolium M. T. Doutt 1931-1 602 San Mateo near Portola, along ocean Comment
  CAS-BOT-BC264776  Eriogonum luteolum L. S. Rose 1941-9-2 41432 San Mateo Emerald Lake, west of Redwood City 90 Comment
  CAS-BOT-BC264780  Eriogonum luteolum James L. Reveal; John H. Thomas 1975-7-31 3911 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto, south of San Francisquito Creek 182 Comment
  RSA187318  Eriogonum luteolum John H. Thomas 1964-7-3 10441 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  RSA423120  Eriogonum luteolum L. S. Rose 1937-9-21 37661 San Mateo Emerald Lake, west of Redwood City. 183 Comment
  SD38964  Eriogonum luteolum Edith A. Purer 1933-8-25 5510 San Mateo Near Schullser Blvd, on hillside, Skyline Blvd. Comment
  SEINET11938085  Eriogonum luteolum var. caninum E. A. Purer 1933-1 5510 San Mateo Along Skyline Drive Comment
  JROH3236  Eriogonum luteolum var. luteolum John Hunter Thomas 1988-8-21 24564 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC662513  Eriogonum luteolum var. luteolum L. S. Rose 1941-9-2 41432 San Mateo w Redwood City; Emerald Lake 90 Comment
  JROH3226  Eriogonum luteolum var. luteolum Duncan M. Porter 1960-10-12 725 San Mateo Jasper Ridge Biological Preserve, Stanford University. Meadow at crest of Ridge above Webb Ranch (area H). Comment
  CAS-BOT-BC269006  Eriogonum nudum var. auriculatum Lewis S. Rose 1964-9-9 64074 San Mateo Emerald Lake, w. of Redwood City 243 Comment
  JEPS128396  Eriogonum nudum var. auriculatum Adam C. Schneider 2013-5-17 142 San Mateo Crystal Springs Reservoir. Comment
  SD38955  Eriogonum nudum var. auriculatum Edith A. Purer 1933-7-27 5401 San Mateo Along Bayshore Highway near Redwood City Comment
  CAS-BOT-BC304067  Eriophyllum confertiflorum Walter & Irja Knight 1963-7-14 297 San Mateo Quarry 3, San Bruno Mt Comment
  RSA175141  Eriophyllum confertiflorum R. F. Thorne, Percy C. Everett 1963-6-9 32234 San Mateo Top of San Bruno Mountain 335 Comment
  CAS-BOT-BC304077  Eriophyllum confertiflorum Elizabeth McClintock; Paul Reedberg 1988-4-26 s.n. San Mateo Guadalupe Hills Comment
  JROH708  Eriophyllum confertiflorum var. confertiflorum John Hunter Thomas 1980-5-8 19956 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC301259  Eriophyllum lanatum var. arachnoideum W. R. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs Reservoir Comment
  CAS-BOT-BC301262  Eriophyllum lanatum var. arachnoideum H. E. McMinn 1922-6-22 258 San Mateo Unspecified Comment
  JEPS19486  Eriophyllum lanatum var. arachnoideum Peter H. Raven 1957-6-24 10963 San Mateo just s of Linda Mar Comment
  JROH725  Eriophyllum lanatum var. arachnoideum W. Lennihan 1989-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 5 from little serpentine hill toward San Francisquito Creek, on left before sharp turn going down to creek Comment
  CAS-BOT-BC301750  Eriophyllum latilobum S. Carlquist 1952-4-26 305 San Mateo On N. side of road to Half Moon Bay, 1 mi. e. of San Mateo Comment
  JEPS28876  Eriophyllum latilobum V. F. Hesse 1962-6-26 3152 San Mateo 9 mi n of Saratoga Summit Highway 5; ; <State route 5 became state route 35> 609 Comment
Read comments Sep 8 2011
  UC306665  Eriophyllum latilobum A. D. E. Elmer 1903-6-1 4897 San Mateo San Mateo Comment
  JEPS121473  Eriophyllum staechadifolium Adam C. Schneider with Alison Colwell 2013-6-23 292 San Mateo Pacifica State Beach, west of CA State Highway 1. Comment
  POM358130  Eriophyllum staechadifolium Glenn A. Gorelick 1967-5-5 s.n. San Mateo San Bruno Mts., overlooking Daly City near San Francisco Comment
  UCR121572  Eriophyllum staechadifolium George K. Helmkamp, E. A. Helmkamp 1999-6-28 5004 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  CAS-BOT-BC301965  Eriophyllum staechadifolium Carl B. Wolf 1930-11-5 1808 San Mateo 2 miles south of San Gregorio 60 Comment
  CAS-BOT-BC301975  Eriophyllum staechadifolium Saichi Kawahara 1968-6-15 436 San Mateo Pescadero Beach, 150 yards south of mouth of Pescadero Creek, Highway 1 4 Comment
  SEINET3558734 Image available Erodium botrys David D. Keck 1932-3-6 1391 San Mateo Portola. Comment
  JROH2594  Erodium botrys John H. Thomas 1969-4-12 14888 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  RSA391840  Erodium cicutarium Glenn A. Gorelick 1967-4-4 s.n. San Mateo San Bruno Mts; overlooking Daly City near San Francisco. Comment
  UCSC007744  Erodium cicutarium Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH2608  Erodium moschatum John Rawlings 2012-5-25 1106 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dennis Martin site near Road B. 79 Comment
  JROH236  Eryngium jepsonii John H. Thomas 1964-7-9 10443 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH244  Eryngium jepsonii John Hunter Thomas 1992-6-8 25368 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5794  Eryngium jepsonii John Rawlings 2016-6-15 1885 San Mateo Jasper Ridge Biological Preserve, Stanford University. North side of road F, 157 yards east of its intersection with Trail 15 165 Comment
  JROH235  Eryngium jepsonii A. G. Vestal 1926-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; summit of Jasper Ridge Comment
  CAS-BOT-BC54828  Erysimum franciscanum W. R. Dudley 1894-3-27 s.n. San Mateo Santa Cruz Peninsula. On ledges below Crystal Springs Dam. Comment
  CAS-BOT-BC54856  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-4-2 908 a fl. 908b fr. San Mateo Just above and west of south end of San Andreas Lake. 213 Comment
  CAS-BOT-BC54857  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-4-2 908 a fl. 908b fr. San Mateo Just above and west of south end of San Andreas Lake. 213 Comment
  CAS-BOT-BC54861  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-6-4 914 San Mateo Above southeast shore of Crystal Springs Lake, southwest base Pulgas Ridge. 91 Comment
  CAS-BOT-BC54885  Erysimum franciscanum Roxania Strichfield 1916-3-10 264 San Mateo Santa Cruz Mountain Peninsula. Crystal Springs Lake. Comment
  JEPS53557  Erysimum franciscanum William S. Cooper 1925-5-28 16 San Mateo Salada Comment
  RSA101861  Erysimum franciscanum G. B. Rossbach 1938-4-3 807 San Mateo San Bruno Hills Comment
  RSA187279  Erysimum franciscanum John H. Thomas 1965-4-29 10608 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  UC1034937  Erysimum franciscanum G. B. and R. P. Rossbach 1939-3 900 a&b San Mateo 2.5 mi n Montara (near Devil's Slide, steep granitic slope above sea) Comment
  UC1034944  Erysimum franciscanum G. B. and R. P. Rossbach 1938-3-15 800 San Mateo rocky knolls and roadbank on e side of lake Crystal Springs Lake 106 Comment
  CAS-BOT-BC54882  Erysimum franciscanum Mason 1917-4-1 s.n. San Mateo Crystal Springs Lake. Comment
  SD37720  Erythranthe guttata Marie Cummings 1933-5-23 3722 San Mateo Spring Valley Comment
  CAS-BOT-BC403550  Eschscholzia californica Ned Cahill 1975-1-8 393 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JEPS51732  Eschscholzia californica Dr. L. M. Newlon 1921-1 246 San Mateo sea shore from Salada to Mussel Comment
  UC204262  Eschscholzia californica A. D. E. Elmer June, 1903 4680 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC403546  Eschscholzia californica H. L. Mason 1922-4-1 s.n. San Mateo At Pigeon Point Light Comment
  OBI48876  Eschscholzia californica S. Bagley 1969-3-28 San Mateo Near the San Fernando Game refuge 145 Comment
  JROH2977  Eucalyptus globulus John H. Thomas 1980-11-18 20173 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC202740  Euonymus occidentalis George Oberlander 1949-4-20 617 San Mateo San Francisco Watershed Reserve. Pilarcitos Comment
  POM202650  Euonymus occidentalis Alice Eastwood 1933-5-31 18843 San Mateo Butano Canyon. Comment
  SEINET12131905  Euonymus occidentalis Unknown 1932-1 9164 San Mateo Canons San Madero Creek Comment
  JROH1799  Euonymus occidentalis var. occidentalis Lyman Benson 1930-5-26 2132 San Mateo Jasper Ridge Biological Preserve, Stanford University; Lake Searsville 152 Comment
  UC565994  Euonymus occidentalis var. occidentalis A. E. Wieslander 1925-9-25 1 San Mateo Pescadero Creek Santa Cruz Quad., Pescadero Creek 152 Comment
  UC635616  Euonymus occidentalis var. occidentalis H. L. Mason 1924-5-18 1016 San Mateo Jasper Ridge near Stanford (creek below sand hill caves); Jasper Ridge Comment
Read comments Sep 19 2011
  CDA4815  Euphorbia helioscopia I. J. Campbell 1956-6-3 San Mateo Pescardo, Pedro Valley. 0 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
  JROH5788  Euphorbia oblongata John Rawlings 2016-5-10 1780 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Cr. near Dennis Martin site. 73 Comment
  JROH1975  Euphorbia spathulata John H. Thomas 1974-4-4 17083 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1557877  Eurybia radulina J. Semple, S. Heard 1987-9-21 8914 San Mateo CA-35 27.4 km s of CA-92 Comment
  JROH726  Euthamia occidentalis John H. Thomas 1964-10-2 10511 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of Searsville Lake near bridge Comment
  POM308576  Euthamia occidentalis Henry J. Ramsey, Henry J. Ramsey 1939-10-7 3241 San Mateo Coast, Highway 1. Comment
  SJSU6623  Felicia amelloides T. M. Morton 1972-4-1 San Mateo residence 735 Laurelwood Dr, San Mateo Comment
  JROH5150  Festuca arundinacea John Hunter Thomas 1979-5-22 19578 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5160  Festuca arundinacea John Hunter Thomas 1987-5-26 24320 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5477  Festuca bromoides W. Lennihan 1990-4-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Escobar - right of road just before Trail 15. 176 Comment
  JROH5947  Festuca bromoides John Rawlings 2017-4-9 1992 San Mateo Jasper Ridge Biological Preserve, Stanford University; path from Field Station to the top of the Dam, 116 Comment
  CAS-BOT-BC278286  Festuca californica W. R. Dudley 1900-3-17 s.n. San Mateo Ravine north of Seal Cove Comment
  RSA6292  Festuca californica var. californica D. D. Keck 1932-5-11 1499 San Mateo Above Woodside on La Honda Road, east slope of Santa Cruz Mountains Comment
  UCR279848  Festuca dertonensis Peter Rubtzoff 1977-6-7 9031 San Mateo San Francisco Bay Region, San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  UCD163541  Festuca idahoensis Peter Rubtzoff 1980-5-3 9436 San Mateo San Bruno Mountains. The Edward Preston Lee Memorial Site and vicinity. Comment
  JROH5486  Festuca microstachys A. G. Vestal 1923-5-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5490  Festuca microstachys Stephen N. Turitzin 1975-5-7 4 San Mateo Jasper Ridge Biological Preserve, Stanford University 190 Comment
  JROH5934  Festuca perennis J. Gaither 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Whiskey Hill Gate Entrance Comment
  CAS-BOT-BC279053  Festuca rubra Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  JROH6207  Festuca rubra John Rawlings 2014-4-4 1239 San Mateo Jasper Ridge Biological Preserve, Stanford University; verge of Goya Rd. at its terminus near Preserve entrance. 199 Comment
  UCD66325  Festuca rubra P. B. Kennedy 1914-7-5 San Mateo Moss Beach, Pacific Grove. Comment
Read comments Nov 2 2021
  RSA191944  Filago gallica R. F. Thorne, P. Everett 1963-6-9 32227 San Mateo On top of San Bruno Mountain. 335 Comment
  POM87792  Fragaria californica L. R. Abrams 1902-5-20 2469 San Mateo Kings Mountain Comment
  RSA499366  Fragaria californica T. Gertrude Williamson 1928-6-28 s.n. San Mateo La Honda Comment
  POM275018  Fragaria chiloensis Lyman D. Benson 1931-3-3 2622 San Mateo Moss Beach. 15 Comment
  UC466552  Fragaria chiloensis R. L. Pendleton 1907-4-20 629 San Mateo Colma Comment
  CAS-BOT-BC437036  Fragaria chiloensis Ray C. Bennett 1952-4-26 17 San Mateo Pescadero Beach Comment
  JEPS44882  Fragaria vesca W. L. Jepson 9545 San Mateo Lake San Andreas 182 Comment
  JROH3664  Fragaria vesca John H. Thomas 1976-10-16 18427 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3671  Fragaria vesca John Hunter Thomas 1985-4-25 23564 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3537  Frangula californica subsp. californica John H. Thomas 1968-5-22 14459 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3542  Frangula californica subsp. californica John H. Thomas 1974-8-11 17509 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3549  Frangula californica subsp. californica John Hunter Thomas 1981-2-14 20224 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA391412  Frankenia salina L. S. Rose 1938-8-18 38230 San Mateo Brisbane 2 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-BC130132  Fritillaria affinis Roxana S. Ferris 1921-3-21 2121 San Mateo [Ano] Ano Nuevo Pt. Comment
  POM169866  Fritillaria affinis A. D. E. Elmer 1903-05 5045 San Mateo Portola Comment
  CAS-BOT-BC130115  Fritillaria affinis W. R. Dudley 1900-3-16 s.n. San Mateo By Redwood stage road below Woodside Comment
  CAS-BOT-BC130121  Fritillaria affinis George Oberlander 1949-4-17 81 San Mateo Pilarcitos Canyon Comment
  SEINET5550647  Fritillaria affinis H. S. Gentry 1931-1 2 San Mateo Collected 1.5 miles west of San Mateo, Half-moon Bay road. Comment
  CAS-BOT-BC130210  Fritillaria agrestis Roxana S. Ferris 1921-3-21 2120 San Mateo New Years Point - [Ann] Ano Nuevo Comment
  UC1057446  Fritillaria liliacea G. Thomas Robbins 1937-4-11 88 San Mateo near Spring Valley Lakes (on road to Woodside) Comment
  CAS-BOT-BC258909  Galium Peter Rubtzoff 1988-6-25 9928 San Mateo Menlo Park, on Willow Road near Alma Street. Comment
  CAS-BOT-BC183624  Galium aparine Peter Rubtzoff 1977-4-14 8939 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JROH3794  Galium murale John H. Thomas 1971-4-21 15765 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3788  Galium murale John H. Thomas 1961-4-29 9177 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5704  Galium parisiense John Rawlings 2015-4-7 1456 San Mateo Jasper Ridge Biological Preserve, Stanford University; quarry off Trail 12 110 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
  UC483490  Gamochaeta ustulata Ira L. Wiggins 1929-7-4 3772 San Mateo 4 mi w La Honda (on hill road to Pescadero Beach) Comment
  CAS-BOT-BC303471  Gamochaeta ustulata Margaret A. Barry 1937-5-15 141 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC344858  Gamochaeta ustulata Peter Rubtzoff 1975-10-24 8431 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  JROH792  Gamochaeta ustulata John Hunter Thomas 1979-5-18 19555 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC194567  Garrya elliptica W. R. Dudley 1895-2-10 s.n. San Mateo San Mateo Ravine by Road above Pt. of Rocks Comment
  POM132460  Garrya elliptica A. D. E. Elmer 1903-02 4469 San Mateo Portola. Comment
  RSA116710  Garrya elliptica Josephine Randall 1910-02 s.n. San Mateo Los Traucos Creek. Comment
  UC1122630  Garrya elliptica C. R. Clar 1928-9-17 3 San Mateo s of Lake Pilarcitos; San Mateo Quad. 274 Comment
  RSA116686  Garrya elliptica Helen M. Edwards 1917-02 s.n. San Mateo Los Traucos Canon [Canyon]. Comment
  POM132534  Garrya veatchii Jos. Burtt Davy 1893-06 s.n. San Mateo Pilarcitos Lake and Canon [Canyon]. Comment
  UCD66567  Gastridium phleoides A. A. Beetle 1942-6-11 3599 San Mateo Rt. 5, 15 miles south of San Bruno. Comment
  CAS-BOT-BC219146  Genista monspessulana Elizabeth McClintock; Paul Reeberg 1988-6-7 s.n. San Mateo above the intersection of San Bruno Avenue and Annis Comment
  CHSC56539  Genista monspessulana Steven Triano 1988-5-24 177 San Mateo On the sw corner of the jct. of Portola Road and Old La Honda Road, ca 3.2 mi s of Woodside. 115 Comment
  JROH2019  Genista monspessulana John Hunter Thomas 1991-5-2 25005 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  RSA0028484  Geranium dissectum John H. Thomas 1966-4-24 11577 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  POM282276  Gilia achilleifolia subsp. multicaulis Lyman Benson 1935-5-5 6532 San Mateo Lake Searsville. 152 Comment
  JROH3150  Gilia achilleifolia subsp. multicaulis D. D. Davis 1903-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; north slope, Searsville Ridge Comment
  JROH3160  Gilia achilleifolia subsp. multicaulis John Hunter Thomas 1992-4-23 25148 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  POM209882  Gilia achilleifolia subsp. multicaulis D. D. Keck 1934-7-7 2931 San Mateo Kings Mountain, west of summit 610 Comment
  RSA20368  Gilia angelensis C. B. Wolf 1938-4-24 9401 San Mateo 1/4 mile SW of the San Francisquito Creek bridge back of Stanford University. 61 Comment
  SJSU15952  Gilia clivorum John Rawlings, Ken Hickman 2016-5-26 1829 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; 25 yards down-slope from the San Francisco Watershed boundary fence 122 Comment
  SD38795  Gilia tricolor Alice Spalding 1933-4-18 3724 San Mateo Comment
  UC184620  Gilia tricolor subsp. tricolor Mrs. Inez Ray Smith 1915-5-26 San Mateo near Crystal Springs (Hillsborough); , near Crystal Springs Comment
  CAS-BOT-BC303681  Glebionis coronaria J. H. Thomas 1961-5-7 9245 San Mateo Colma. Near intersection of El Camino Real and F Street 45 Comment
  JROH5201  Glyceria X occidentalis John Rawlings 2007-6-9 1022 San Mateo Jasper Ridge Biological Preserve, Stanford University. A few meters downstream from the Bear Creek and San Francisquito Creek confluence on a gravel bar on the NW side of San Francisquito Creek. 81 Comment
  JROH2026  Glycyrrhiza lepidota John Hunter Thomas 1983-7-7 22819 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA184927  Gnaphalium beneolens L. S. Rose 1966-8-15 66082 San Mateo Emerald Lake, west of Redwood City 91 Comment
  RSA18517  Gnaphalium californicum C. B. Wolf 1927-7-14 602 San Mateo Summit of Kings Mountain Rd. Comment
  SEINET11849355  Gnaphalium chilense M. T. Doutt 1931-1 424 San Mateo Portola Comment
  CAS-BOT-BC307439  Gnaphalium palustre Le Roy Abrams 1900-10-1 1006 San Mateo Searsville Lake Comment
  POM223282  Gnaphalium ramosissimum L. S. Rose 1935-8-13 35568 San Mateo Salada. 30 Comment
  RSA91713  Gnaphalium ramosissimum F. W. Peirson 1925-9-13 6426 San Mateo Rockaway beach Comment
  JEPS67910  Gratiola ebracteata L. R. Heckard and J. H. Thomas 1972-4-16 2893 San Mateo along Old Canada Road (private) ca 1 1/2 mi s Pulgas Water Temple ((sw of Upper Crystal Springs Reservoir)); sw of Upper Crystal Springs Reservoir 121 Comment
  JROH811  Grindelia camporum G. H. Mallory 1909-7-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; south end of Jasper Ridge Comment
  RSA201473  Grindelia camporum J. T. Howell 1964-12-6 41032 San Mateo Near Southern Pacific RR station, Millbrae. Comment
  CAS-BOT-BC304536  Grindelia hirsutula W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Peninsula. By road from Pilarcitos to San Andreas 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-BC304550  Grindelia hirsutula W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Peninsula. By road from Pilarcitos to San Andreas Comment
  CAS-BOT-BC304563  Grindelia hirsutula W. R. Dudley 1900-5-19 s.n. San Mateo Santa Cruz Mountain Peninsula. By stage road 1/2 mile west of La Honda Summit Comment
  CAS-BOT-BC304565  Grindelia hirsutula R. E. Frenkel 1963-12-7 320 San Mateo San Francisco Water District, Whiting Ridge Road, ca. 0.4 mile north of the junction with Spring Valley Ridge Road Comment
  JEPS20069  Grindelia hirsutula Peter H. Raven 1957-9-1 11297 San Mateo at junction of State Highway 1 and Tunitas Creek Comment
  RSA217970  Grindelia hirsutula Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain; below top of mountain. Comment
  CAS-BOT-BC304520  Grindelia hirsutula V. F. Hesse 1961-8-24 3026 San Mateo Near, north of, Pigeon Point 4 Comment
  CDA6158  Grindelia stricta var. platyphylla T. C. Fuller 1960-6-24 5020 San Mateo Highway 1, 7 miles north of Princeton. 0 Comment
  SD88348  Grindelia stricta var. platyphylla Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of Half Moon Bay Comment
  JEPS54104  Guillenia lasiophylla R. J. Smith 1898-5 San Mateo Los Buellis Hills Mt. Hamilton Range Comment
  POM143655  Guillenia lasiophylla C. F. Baker 1902-4-6 459 San Mateo Crystal Springs Lake. Comment
  JROH5203  Hainardia cylindrica John Rawlings 2012-5-23 1117 San Mateo Jasper Ridge Biological Preserve, Stanford University; at back of field station at edge of brick patio 121 Comment
  JROH440  Hedera helix John H. Thomas 1967-6-1 12974 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC158035  Hedera helix Phillip Wheeler; Elizabeth McClintock 1965-6-13 s.n. San Mateo Radion Road near KRON station Comment
  JEPS35427  Helenium puberulum Alice King 1908-7-25 San Mateo Moss Beach Comment
  JROH838  Helenium puberulum John Hunter Thomas 1977-6-16 18744 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH840  Helenium puberulum John Hunter Thomas 1980-11-27 20178 San Mateo Jasper Ridge Biological Preserve, Stanford University; along causeway Comment
  JROH847  Helenium puberulum John Hunter Thomas 1992-6-8 25369 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC309536  Helenium puberulum Josephine D. Randall 1907-6-12 72 San Mateo Santa Cruz Peninsula. Portola Road near Stanford University Comment
  HSC23888  Helenium puberulum Mary Katherine Wicksten 1971-6-22 94 San Mateo Huddart Park; by Madrone Area, toward Miwok Shelter Comment
  RSA18443  Helenium puberulum C. B. Wolf 1927-6-29 565 San Mateo 3 miles south of San Gregorio. Comment
  RSA70702  Helenium puberulum L. S. Rose 1949-8-10 49157 San Mateo Skyline Blvd, W of Tanforan 122 Comment
  JROH852  Helianthella californica var. californica John H. Thomas 1967-5-12 12880 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH849  Helianthella californica var. californica J. S. McMurphy 1911-5-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC224055  Helianthemum scoparium W. R. Dudley 1898-4-15 s.n. San Mateo Santa Cruz Mountain Peninsula. Jasper Ridge near Stanford University Comment
  HSC23781  Helianthemum scoparium Mary Katherine Wicksten 1971-6-17 63 San Mateo Huddart Park, by Werder Shelter Comment
  JROH1396  Heliotropium curassavicum var. oculatum John H. Thomas 1962-7-15 9925 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below dam Comment
  CAS-BOT-BC305924  Helminthotheca echioides Ira L. Wiggins 1977-7-23 22188 San Mateo Bed of San Francisquito Creek, ca 150 m upstream from Pope Street bridge, San Mateo County side of center line, Menlo Park Comment
  JROH1167  Helminthotheca echioides John H. Thomas 1970-7-5 15668 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU3591  Helminthotheca echioides A. I. Wilson 1967-9-18 2 San Mateo by W side Los Trancos Cr c. midway between Portola Valley & Palo Alto Comment
  CAS-BOT-BC453466  Hemitomes congestum R. S. Ferris 1923-5-26 3787 San Mateo Chris Iverson Trail, Butano Ridge Comment
  POM284517  Hemizonia congesta Lyman Benson 1934-7-29 6107 San Mateo Crystal Springs Lake; Mt. Range: Santa Cruz; Watershed: S. F. Bay. 152 Comment
  CAS-BOT-BC313457  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1910-8-24 s.n. San Mateo Corte Madera Creek Comment
  JEPS30897  Hemizonia congesta subsp. luzulifolia J. H. Thomas 1958-6-11 7228 San Mateo about 4.3 mi due e Belmont (near Crystal Springs Reservoir) 91 Comment
  JEPS44416  Hemizonia congesta subsp. luzulifolia Lewis S. Rose 1965-8-27 65094 San Mateo w Redwood City; Emerald Lake 182 Comment
  SJSU15950  Hemizonia congesta subsp. luzulifolia John Rawlings, Ken Hickman 2016-5-26 1828 A San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north, down-slope from the San Francisco Watershed boundary fence 122 Comment
  UC398631  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1914-7-15 5140 San Mateo Crystal Springs Comment
  UC897724  Hemizonia congesta subsp. luzulifolia Lewis S. Rose 1935-9-21 35652 San Mateo Redwood City Comment
  CAS-BOT-BC314929  Hemizonia congesta subsp. luzulifolia J. I. McMurphy 1906-5-8 s.n. San Mateo East of Crystal Lakes, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC314934  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1907-8-6 s.n. San Mateo Low ground east of causeway, Crystal Springs Lakes Comment
  CAS-BOT-BC314944  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-14 10227 San Mateo North of Belmont Comment
  POM53591  Hemizonia luzulifolia C. F. Baker 1903-6-30 3350 San Mateo Crystal Springs Comment
  POM360316  Hemizonia luzulifolia E. S. Spalding 1923-8-3 s.n. San Mateo 3 miles W of Redwood City, near Pulgas Tunnel. Comment
  UC1084378  Heracleum lanatum G. Thomas Robbins 1937-4-11 75 San Mateo along Skyline Blvd. s. of San Francisco Comment
  UC204735  Heracleum lanatum A. D. E. Elmer July, 1903 5073 San Mateo Pilarcitos Stone Dam Comment
  CAS-BOT-BC310247  Hesperevax sparsiflora var. sparsiflora Ned Cahill 1974-4-29 191 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH883  Hesperevax sparsiflora var. sparsiflora John H. Thomas 1967-11-5 14127 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH894  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1982-4-28 20874 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA187311  Hesperocnide tenella John H. Thomas 10307 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC403870  Hesperocnide tenella James McMurphy 1906-5-14 s.n. San Mateo Above Stanford Residence, San Francisquito Creek Comment
  JROH116  Hesperocyparis macrocarpa John Hunter Thomas 1979-9-9 19734 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA187457  Hesperolinon congestum L. R. Abrams 1920-6-1 7497 San Mateo Back of Redwood City. Comment
  CAS-BOT-BC148474  Heteromeles arbutifolia A. D. E. Elmer 1903-2-1 4575 San Mateo Portola Comment
  RSA18379  Heteromeles arbutifolia Carl B. Wolf 1927-7-1 529 San Mateo Above Emerald Lake, back of Redwood City Comment
  RSA71287  Heteromeles arbutifolia L. S. Rose 1949-8-10 49156 San Mateo Skyline Blvd, W of Tanforan 122 Comment
  SEINET11915764  Heteromeles arbutifolia Unknown 1929-1 7301 San Mateo Kings Mt Comment
  CAS-BOT-BC420899  Heuchera micrantha var. erubescens D. E. Breedlove 1973-9-26 35563 San Mateo Pescadero Creek County Park 365 Comment
  CAS-BOT-BC424428  Heuchera pilosissima Ira L. Wiggins 1925-5-24 1742 San Mateo Along county road from Pescadero to Pebble Beach just before coming to the artichoke lands of the American Produce Co. Comment
  JROH911  Hieracium albiflorum John Hunter Thomas 1983-6-29 22700 San Mateo Jasper Ridge Biological Preserve, Stanford University; top of rattlesnake rock Comment
  CAS-BOT-BC319631  Hieracium albiflorum C. F. Leithold 1894-8-13 s.n. San Mateo Devil's Canyon, Black Mountain, Santa Cruz Mountain Peninsula Comment
  RSA0016773  Hippuris vulgaris W. R. Dudley 1909-10-4 s.n. San Mateo W. twin-pond, N San Mateo County; Santa Cruz Mt. Peninsula. 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-BC289249  Holcus lanatus George Oberlander 1949-7-10 262 San Mateo San Francisco Watershed Reserve, south boundary 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
  RSA121223  Holcus lanatus G. E. Sindel 1935-8-14 332 San Mateo Half mile N of Purisama Creek. 320 Comment
  CAS-BOT-BC228580  Holodiscus discolor Peter W. Fritsch; Lu Lu; Lisa Fritsch; Nathan Fritsch 2012-6-30 1938 San Mateo San Bruno State Park, Summit Loop Trail just above the Eucalyptus grove N of the road from the parking area, NE-facing slope 238 Comment
  POM141561  Holodiscus discolor C. F. Baker 1902-9-2 1552 San Mateo Crystal Springs Lake. Comment
  RSA449783  Holodiscus discolor D. D. Keck 1932-6-1 1795 San Mateo Above Searsville Lake, on road between Woodside and Skyline Blvd. Santa Cruz Mountains. Comment
  JROH3702  Holodiscus discolor var. discolor John Hunter Thomas 1991-5-17 25054 San Mateo Jasper Ridge Biological Preserve, Stanford University. Woodland between dam and San Francisquito Creek near pump house Comment
  RSA6305  Hordeum brachyantherum D. D. Keck 1965-5-6 1465 San Mateo Belmont Comment
  CAS-BOT-BC284676  Hordeum brachyantherum subsp. brachyantherum Peter H. Raven 1950-6-3 2214 San Mateo Along Millbrae Ave., Millbrae 60 Comment
  SJSU15222  Hordeum brachyantherum subsp. brachyantherum Toni Corelli 2011-5-23 704 San Mateo Bean Hollow State Beach, Arroyo de los Frijoles Trail. Coastal bluff top south of Bean Hollow Beach 7 Comment
  UCD85382  Hordeum brachyantherum subsp. brachyantherum August L. Hormay 1932-5-29 s.n. San Mateo San Bruno. Comment
  CAS-BOT-BC285151  Hordeum marinum subsp. gussoneanum W. R. Dudley 1894-5-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside to Crystal Springs Lake Comment
  JROH5236  Hordeum marinum subsp. gussoneanum John H. Thomas 1963-5-12 10081 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC289393  Hordeum murinum subsp. glaucum H. A. Dutton 1900-4-19 s.n. San Mateo Woodside, Santa Cruz Peninsula Comment
  JROH5252  Hordeum murinum subsp. glaucum John Hunter Thomas 1980-4-10 19879 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Searsville Lab. Comment
  JROH5259  Hordeum murinum subsp. leporinum John Hunter Thomas 1987-5-15 24287 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Low flow crossing. Comment
  JROH5262  Hordeum murinum subsp. leporinum John Rawlings 2013-4-10 1129 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
  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-BC271356  Hordeum vulgare William R. Dudley 1895-6-1 s.n. San Mateo Near Palo Alto Comment
  CAS-BOT-BC536143  Horkelia californica L. R. Abrams 1926-5-26 11219 San Mateo San Bruno Hills near Daly City Comment
  CAS-BOT-BC536145  Horkelia californica J. W. Congdon 1897-8-11 s.n. San Mateo San Gregorio Comment
  UCR19821  Horkelia cuneata C. S. Life 1923-1 s.n. San Mateo San Francisco 135 Comment
  UC204150  Horkelia cuneata subsp. sericea A. D. E. Elmer April, 1903 5036 San Mateo near Colma (cemeteries) Comment
  SJSU16037  Hosackia gracilis Toni Corelli, John Rawlings 2016-4-29 1766 San Mateo Cascade Field along Atkinson Bluff Trail, north of Cascade Cr. Trail, in Ano Nuevo State Park 11 Comment
  SD37817  Hosackia stipularis Edith A. Purer 1932-7-18 4004 San Mateo King's Mountain, mountainside Comment
  SD27818  Hypericum anagalloides Carl B. Wolf 1929-5-25 3729 San Mateo Pebble Beach south of Pescadero Comment
  CAS-BOT-BC166763  Hypericum anagalloides Peter Rubtzoff 1976-6-30 8704 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  CAS-BOT-BC400966  Hypericum anagalloides Elizabeth McClintock; Paul Reeberg No date on label s.n. San Mateo San Bruno Mountains Comment
  CDA34310  Hypericum canariense C. Kozak 2011-6-16 we 543 San Mateo San Francisco Bay Area; Cloverdale Ranch, Pescadero. On the east(inland) side of Highway 1 approx. 1.1 mi. N of Gazos Creek Rd. 0 Comment
  UCR247521  Hypericum canariense C. Kozak 2011-6-16 s.n. San Mateo Central Coast, Pescadero, Cloverdale Ranch, on the east side of Hwy 1 c. 1.1 mi north of Gazos Creek Road Comment
  CAS-BOT-BC311393  Hypochaeris glabra John H. Thomas 1955-4-6 4843 San Mateo East facing slope of San Bruno Mountain just north of South San Francisco 91 Comment
  CAS-BOT-BC311395  Hypochaeris glabra Fred Hemphill 1973-5-14 820 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH915  Hypochaeris glabra John H. Thomas 1967-5-10 12859 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH916  Hypochaeris glabra John H. Thomas 1973-4-20 16581 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18313  Hypochaeris glabra C. B. Wolf 1927-7-14 598 San Mateo Summit of Kings Mountain Rd. Comment
  SEINET5554861  Hypochaeris glabra H. S. Gentry 1931-1 97 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  JROH938  Hypochaeris radicata John Hunter Thomas 1986-5-6 24011 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH940  Hypochaeris radicata John Hunter Thomas 1988-5-16 24464 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  POM55230  Hypochaeris radicata A. D. E. Elmer 1903-04 4861 San Mateo Lake San Andreas Comment
  SD39737  Hypochaeris radicata Edith A. Purer 1932-7-18 4005 San Mateo Half Moon Bay Comment
  CAS-BOT-BC311486  Hypochaeris radicata Roxana S. Ferris 1917-10-19 727 San Mateo Crystal Springs Lakes Comment
  POM361225  Hypochaeris radicata E. A. Purer 1932-7-18 4005 San Mateo Half Moon Bay Comment
  POM196487  Iris douglasiana W. R. Dudley 1903-5-21 s.n. San Mateo Santa Cruz Peninsula, upper Pescadero Beach 152 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-BC133654  Iris longipetala W. R. Dudley 1894-3-1 s.n. San Mateo Near South San Francisco Comment
  CAS-BOT-BC133671  Iris longipetala Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Horseshoe Ridge Comment
  SBBG32267  Iris longipetala L. S. Rose 1968-3-26 68009 San Mateo S base of San Bruno Mts, S San Francisco 30 Comment
  POM168926  Iris macrosiphon E. B. Copeland 1903-5-9 3052 San Mateo Big Basin of Pescadero Creek. Comment
  CAS-BOT-BC57730  Isoetes howellii W. R. Dudley 1909-10-31 s.n. San Mateo Woodside Valley Pond Comment
  CAS-BOT-BC57733  Isoetes howellii L. R. Abrams 1923-4-19 10108 San Mateo Alameda de los Pulgas back of Menlo Park Comment
  RSA116774  Isoetes howellii W. R. Dudley 1909-10-31 s.n. San Mateo Woodside Valley pond. Comment
  CAS-BOT-BC112418  Isolepis carinata George Thomas Oberlander 1950-5-6 872 San Mateo Marsh, San Andreas Lake. Comment
  CAS-BOT-BC112441  Isolepis cernua Lewis Samuel Rose 1956-7-2 56117 San Mateo Skyline Blvd. hills of San Mateo 182 Comment
  CAS-BOT-BC112613  Isolepis cernua LeRoy Abrams; Ira L. Wiggins 1939-6-3 426 A San Mateo Margin of pond among sand dunes. Ano Nuevo Point Comment
  CAS-BOT-BC112615  Isolepis cernua George Thomas Oberlander 1949-7-10 273 San Mateo Marsh, Upper Crystal Spr. Lake. Comment
  CAS-BOT-BC112621  Isolepis cernua W. R. Dudley 1909-10-4 s.n. San Mateo Border of Laguna Alta near Mussel Rock. Comment
  SEINET7589109 Image available Isolepis cernua Lewis S. Rose 1956-7-2 56117 San Mateo Skyline Blvd, hills W of San Mateo. 183 Comment
  UC652559  Juncus ambiguus Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9291 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC352225  Juncus arcticus var. balticus Peter Rubtzoff; Elizabeth McClintock 1989-8-31 10044 San Mateo San Bruno Mountains, near Willow Pond (located near Saddle Trail), ca. 0.15 miles north of junction with Old Guadalupe Trail. Comment
  RSA796693  Juncus bufonius Peter Rubtzoff 1977-6-21 9066 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH5659  Juncus bufonius var. bufonius John Rawlings 2014-5-23 1270 San Mateo Jasper Ridge Biological Preserve, Stanford University; up-slope from boat dock (aka Searsville Lab Landing). 104 Comment
  JROH5673  Juncus bufonius var. bufonius John Rawlings 2014-6-10 1275 San Mateo Jasper Ridge Biological Preserve, Stanford University; Corte Madera Creek delta near open water. 104 Comment
  JROH4470  Juncus bufonius var. occidentalis John Hunter Thomas 1983-5-23 22251 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Near shack side and low-flow crossing. Comment
  SJSU15911  Juncus capitatus John Rawlings, Sara Timby, Toni Corelli 2016-4-23 1737 San Mateo South end of Bean Hollow bluff trail west of Hwy 1 south of Pescadero 8 Comment
  RSA18441  Juncus effusus subsp. pacificus Carl B. Wolf 1927-6-29 567 San Mateo 3 miles south of San Gregorio. Comment
  UCD164602  Juncus effusus subsp. pacificus Peter Rubtzoff; Roman Gankin 1975-9-11 8373 San Mateo San Bruno Mountains.'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JEPS63835  Juncus hesperius William S. Cooper 1924-11-19 36 San Mateo Ano Nuevo Pt. 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
  JROH4490  Juncus occidentalis John Hunter Thomas 1983-5-23 22246 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near shack side & low-flow crossing. Comment
  JROH4477  Juncus occidentalis H. J. Dengler 1961-5-19 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; old heron rookery Comment
  UC1101090  Juncus patens Malcolm A. Nobs and S. Galen Smith 1949-8-26 1587 San Mateo about 1 mi s Half Moon Bay Comment
  RSA18498  Juncus patens Carl B. Wolf 1927-7-14 622 San Mateo 1 mile south of summit of Kings Mt on Skyline Drive. Comment
  UCR279841  Juncus phaeocephalus Peter Rubtzoff 1978-8-17 9260 San Mateo San Francisco Bay Region, San Bruno Mountain; 'saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction 220 Comment
  CAS-BOT-BC210092  Juncus phaeocephalus Peter Rubtzoff 1978-8-17 9262 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  SJSU9859  Juncus tenuis Roberta Sears 1968-5-25 81 San Mateo Woodside, 2 mi NNW of Searsville Lake Comment
  JROH4518  Juncus xiphioides John Hunter Thomas 1979-5-18 19557 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC23945  Kickxia spuria Mary Katherine Wicksten 1971-7-15 172 San Mateo Huddart Park, along wall in front of residence Comment
  JROH5269  Koeleria macrantha John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1738871  Koeleria macrantha Dean W. Taylor 1988-3-30 9491 San Mateo San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest; right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain 176 Comment
  UC501383  Koeleria macrantha David D. Keck 1932-5-6 1476 San Mateo above Millbrae Highlands; above Millbrae Highlands Comment
  UCD86030  Koeleria macrantha P. B. Kennedy 1928-5-2 s.n. San Mateo E of Daly City. Comment
  JROH5271  Koeleria macrantha John Hunter Thomas 1983-4-28 21781 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH947  Lactuca saligna John Hunter Thomas 1982-9-23 21161 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC340470  Lactuca saligna John H. Thomas 1969-10-19 15481 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  JROH949  Lactuca serriola John H. Thomas 1964-11-29 10535 San Mateo Jasper Ridge Biological Preserve, Stanford University; W end of Searsville Dam Comment
  JROH952  Lactuca serriola John H. Thomas 1974-10-26 17633 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC353465  Lactuca virosa Peter Rubtzoff; Roman Gankin 1975-9-11 8374 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC341635  Lagophylla ramosissima John Thomas Howell 1926-10-9 2215 San Mateo Lake San Andreas Comment
  UCD125097  Lamium amplexicaule J. D. Skoss 1948-8-22 105 San Mateo San Vicente Canyon, near Montara. Comment
  CAS-BOT-BC339050  Lasthenia californica Lewis S. Rose 1961-4-5 61033 San Mateo San Bruno Mountains 365 Comment
  CAS-BOT-BC339065  Lasthenia californica John Thomas Howell 1933-5-26 11347 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC339075  Lasthenia californica Margaret A. Barry 1937-5-1 37 San Mateo Coal Mine Ridge Comment
  POM55156  Lasthenia californica E. B. Copeland 1903-6-5 3338 San Mateo Montara Point. Comment
  CAS-BOT-BC339046  Lasthenia californica Andree M. Desrochers 1989-4-17 447 San Mateo Near Palo Alto. Jasper Ridge, Biological Preserve of Stanford University Comment
  CAS-BOT-BC339092  Lasthenia californica David D. Keck 1933-5-11 2296 San Mateo Montara Light House and Radio Station Comment
  RSA8340  Lasthenia californica L. S. Rose 1933-4-30 33128 San Mateo Redwood City Comment
  RSA262209  Lasthenia glabrata subsp. glabrata John H. Thomas 1971-5-2 15794 San Mateo Near intersection of Canada and Edgewater roads; about 3 miles westward from Redwood City. 152 Comment
  CAS-BOT-BC355539  Lasthenia glabrata var. glabrata John H. Thomas 1956-4-8 5629 San Mateo Near Bayshore Highway about 2 miles east of Redwood City Comment
  CAS-BOT-BC355547  Lasthenia glabrata var. glabrata A. D. E. Elmer 1903-5-1 4426 San Mateo Millbrae Comment
  CAS-BOT-BC355549  Lasthenia glabrata var. glabrata Le Roy Abrams 1903-5-11 2456 San Mateo Crystal Springs Comment
  CAS-BOT-BC360402  Lasthenia glabrata var. glabrata Ned Cahill 1974-4-18 130 San Mateo Near intersection of Canada and Edgewood Roads, about 3 mi westward from Redwood City. Comment
  RSA18351  Lasthenia macrantha subsp. macrantha C. B. Wolf 1927-1-29 s.n. San Mateo Pescadero Comment
  CAS-BOT-BC368192  Lasthenia minor K. L. Chambers 1956-6-20 1047 San Mateo Pebble Beach near Pescadero Point, between Hwy 1 and the ocean, on bluff near parking area. Comment
  CAS-BOT-BC368188  Lasthenia minor Kenton L. Chambers 1956-6-20 1044 San Mateo Mouth of Pescadero Creek, on bluff between Hwy. 1 and the ocean; around parking area Comment
  RSA51309  Lasthenia minor Peter H. Raven 1950-4-30 1953 San Mateo Montara. 15 Comment
  CAS-BOT-BC204915  Lathyrus James McMurphy 1909-5-25 s.n. San Mateo Grade west of Crystal Springs Comment
  CAS-BOT-BC205027  Lathyrus jepsonii var. jepsonii W. R. Dudley 1897-5-12 s.n. San Mateo Santa Cruz Peninsula. Road from Bay to Menlo Comment
  CHSC57080  Lathyrus littoralis Steven Triano 1988-5-24 207 San Mateo Coastal sand dunes w of Hwy. 1 ca 0.2 mi n of Pescadero Road. 9 Comment
  RSA10272  Lathyrus littoralis H. A. Barker 1927-5-14 672 San Mateo North of Half Moon Bay. Comment
  SFV1827  Lathyrus littoralis W. R. Russell 1961-6-5 s. n. San Mateo North end of Pacifica (formerly Sharp Park), sand hills about 1 block west of business district. Comment
  POM277781  Lathyrus polyphyllus Lyman Benson 1930-5-26 2137 San Mateo Stanford University. Lake Searsville. 152 Comment
  SJSU1011  Lathyrus vestitus J. E. Hagerty 1950-5-6 San Mateo Corte Madera Cr 0.5 mi above Strawberry Bend Comment
  RSA15256  Lathyrus vestitus subsp. vestitus Carl B. Wolf 1927-2-19 218 San Mateo East side of Kings Mountain. Comment
  UC1300854  Lathyrus vestitus var. vestitus Helen K. Sharsmith 1963-2-16 5142 a San Mateo above Daly City (lower slopes of San Bruno Mountain); San Francisco Bay Region, San Bruno Mountain 106 Comment
  UC15326  Lathyrus vestitus var. vestitus J. Burtt Davy 1895-4-20 1054 San Mateo Lake Pilarcitos Comment
  JROH2036  Lathyrus vestitus var. vestitus John Hunter Thomas 1984-4-8 23277 A San Mateo Jasper Ridge Biological Preserve, Stanford University; near weather station Comment
  CAS-BOT-BC323177  Layia chrysanthemoides C. F. Baker no date on label 1894 San Mateo San Bruno Hills Comment
  CAS-BOT-BC323184  Layia chrysanthemoides Donald A. Johansen 1933-5-27 803 San Mateo Along Skyline Boulevard at junction of side road leading to Burlingame Comment
  CAS-BOT-BC323152  Layia chrysanthemoides David D. Keck 1932-5-6 1487 San Mateo Near Skyline Boulevard, west of Millbrae Highlands. Comment
  CAS-BOT-BC323179  Layia chrysanthemoides William R. Dudley 1893-5-17 s.n. San Mateo Near Millbrae. Comment
  RSA95542  Layia chrysanthemoides L. S. Rose 1953-4-5 53008 San Mateo Redwood City, along Bayshore Highway. 3 Comment
  CAS-BOT-BC321114  Layia gaillardioides David D. Keck 1932-6-1 1798 San Mateo 1.5 mi. NE of La Honda Santa Cruz Mountains 213 Comment
  JEPS39180  Layia gaillardioides W. L. Jepson 1914-3-22 5735 San Mateo Redwood City Comment
  CAS-BOT-BC321071  Layia gaillardioides H. L. Mason 1921-7-14 s.n. San Mateo La Honda-Pescadero Road, near Pescadero Creek Comment
  CAS-BOT-BC321098  Layia gaillardioides David D. Keck 1932-5-6 1483 San Mateo Skyline Blvd. W of Millbrae Highlands, Santa Cruz Mountains. Comment
  JEPS89799  Layia hieracioides Dean W. Taylor 1989-4-18 10215 San Mateo ridgetop between Ox Hill and Scarper Peak (along fire road, Santa Cruz Mountains); Santa Cruz Mountains 472 Comment
  JROH983  Layia hieracioides John H. Thomas 1958-5-10 7158 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA15482  Layia hieracioides L. S. Rose 1936-5-28 36309 San Mateo Emerald lake, W. of Redwood City 91 Comment
  CAS-BOT-BC327480  Layia hieracioides Walter Knight; Irja Knight 1965-4-25 1238 San Mateo San Bruno Mountain; Power Line Ridge. Comment
  CAS-BOT-BC327507  Layia hieracioides L. R. Abrams 1907-8-26 s.n. San Mateo King's Mt., Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC327510  Layia hieracioides W. R. Dudley 1900-5-19 s.n. San Mateo La Honda Stage Road below Grand View Saloon Comment
  CAS-BOT-BC352223  Layia hieracioides Peter Rubtzoff; Roman Gankin; Elizabeth McClintock; Bill Burley 1979-6-7 9289 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  JROH994  Layia platyglossa John H. Thomas 1966-4-21 11564 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC382077  Layia platyglossa George Oberlander 1949-5-21 157 San Mateo On top of Sawyer Ridge Comment
  CAS-BOT-BC382090  Layia platyglossa Elizabeth McClintock 1978-3-25 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  CAS-BOT-BC382217  Layia platyglossa David D. Keck 1932-6-18 1980 San Mateo Skyline Blvd. at Langley HIll (SW of Stanford Unviersity) 600 Comment
  RSA18086  Lemna gibba Carl B. Wolf 1929-4-29 3662 San Mateo Small reservoir, 1 mile S of Portola, San Mateo Comment
  CAS-BOT-BC537272  Lemna minor D E Breedlove 1974-5-13 36220 San Mateo Brushy slopes San Pedro Valley Park, Pacifica 152 Comment
  CAS-BOT-BC527272  Lemna minuta Carl B. Wolf 1929-4-29 3660 San Mateo 10 miles south of San Franciscot on Skyline Blvd. Comment
  CAS-BOT-BC221526  Lepechinia calycina Miss E. Cannon No date on label s.n. San Mateo Near Moss Beach Comment
  CAS-BOT-BC221540  Lepechinia calycina Fred Hemphill 1973-4-15 717 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  UC25890  Lepechinia calycina J. Burtt Davy 1893-6-17 813 San Mateo Belmont Comment
  CAS-BOT-BC89133  Lepidium didymum Ira L. Wiggins 1949-7-2 12198 San Mateo Pescadero Beach. Comment
  JROH1537  Lepidium latifolium John Rawlings, Ann Lambrecht 2009-7-3 0923 San Mateo Jasper Ridge Biological Preserve, Stanford University; north bank of Bear Creek 82 Comment
  JROH1544  Lepidium nitidum John H. Thomas 1973-3-11 16479 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC12595  Lepidium nitidum Elizabeth McClintock; Arthur Menzies 1963-2-16 s.n. San Mateo San Bruno Mountains. Below top of mountain in vicinity of radio station. Comment
  JROH1558  Lepidium strictum John H. Thomas 1968-3-17 14186 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  CAS-BOT-BC226597  Leptosiphon ambiguus James McMurphy 1906-5-8 s.n. San Mateo Head of Crystal Springs Lakes Comment
  CAS-BOT-BC226607  Leptosiphon ambiguus L. R. A. 1902-5-4 2415 San Mateo Woodside Comment
  CAS-BOT-BC226609  Leptosiphon ambiguus James McMurphy 1906-5-8 s.n. San Mateo Head of Crystal Springs Lake Comment
  CAS-BOT-BC226610  Leptosiphon ambiguus George Oberlander 1950-4-22 778 San Mateo San Francisco Watershed Reserve Comment
  POM65851  Leptosiphon ambiguus C. F. Baker 1902-5-4 753 San Mateo Woodside. Comment
  SJSU1074  Leptosiphon ambiguus C. W. Sharsmith 1951-4-6 5824 San Mateo Woodside Hills c. 3 mi W of Woodside 182 Comment
  POM65863  Leptosiphon androsaceus L. R. Abrams 1901-05 1569 San Mateo Woodside Comment
  SEINET3861922  Leptosiphon croceus Genevieve K. Walden 2009-6-22 203 San Mateo Moss Beach State Beach, Wylvale Rd. on cliff above beach.; 0 Comment
  SJSU15803  Leptosiphon croceus Toni Corelli 2015-5-3 1193 San Mateo Northern edge of Fitzgerald Marine Reserve, Moss Beach also know as Vallemar Bluff 14 Comment
  CAS-BOT-BC226624  Leptosiphon grandiflorus W. R. Dudley 1896-7-30 s.n. San Mateo Summit of hill just beyond La Honda Comment
  POM128438  Leptosiphon liniflorus L. R. Abrams 1902-5-4 2416 San Mateo Woodside. Comment
  RSA128499  Leptosiphon liniflorus Harry A. Dutton 1900-4-3 s.n. San Mateo Woodside serpentine [?] Comment
  RSA107079  Leptosiphon liniflorus L. S. Rose 1956-5-7 56068 San Mateo Skyline Blvd west of San Mateo. 183 Comment
  SD38813  Leptosiphon parviflorus Edith A. Purer 1933-4-25 3640 San Mateo Comment
  CAS-BOT-BC324063  Lessingia arachnoidea John Thomas Howell 1926-10-9 2220 A San Mateo Near Crystal Springs Lake 91 Comment
  CAS-BOT-BC324065  Lessingia arachnoidea L. S. Rose 1941-9-6 41434 San Mateo San Mateo Canyon 90 Comment
  CAS-BOT-BC539289  Lessingia arachnoidea John Rawlings; Ken Hickman 2016-7-21 1906 San Mateo Caltrans right-of-way upslope from Hwy 92 W onramp to Hwy 280 N; downslope from San Francisco Watershed fenceline 122 Comment
  JEPS21657  Lessingia arachnoidea W. R. Dudley 1902-9-21 San Mateo near fork to Alms House; Crystal Springs Reservoir Comment
  SEINET3445401  Lessingia arachnoidea L. S. Rose 1941-9-6 1901 San Mateo San Mateo Canyon, San Mateo Canyon 90 Comment
  UC1026397  Lessingia arachnoidea Lewis S. Rose 1954-8-29 54111 San Mateo slopes e Crystal Springs Lake Comment
  UC1287456  Lessingia arachnoidea Willard Spence 1960-7-2 552 San Mateo Rt. 5 1 mi n Dam; Crystal Springs Lake Comment
  JEPS40998  Lessingia hololeuca Lewis S. Rose 1964-9-5 64072 San Mateo w of Redwood City; Emerald Lake Comment
  POM57787  Lessingia hololeuca L. R. Abrams 1900-10 1004 San Mateo Porlota (?) Comment
  RSA51399  Lessingia hololeuca L. S. Rose 1949-8-14 s.n. San Mateo Emerald Lake, W of Redwood City Comment
  SEINET7063127  Lessingia hololeuca A. G. Vestal 1963-7-12 s.n. San Mateo Jasper Ridge. UTM Zone 10, 568418mE, 4140415mN. (WGS84/NAD83). 174 Comment
  UC905072  Leucanthemum vulgare John Thomas Howell 1949-7-4 24356 San Mateo n of Millbrae; Skyline Blvd. Comment
  CAS-BOT-BC342091  Leucanthemum vulgare Elizabeth McClintock; Paul Reeberg 1987-6-12 s.n. San Mateo San Bruno Mountains. Along road to Camp Silverspot Comment
  CAS-BOT-BC273564  Leymus californicus A. D. E. Elmer 1903-6-1 4700 San Mateo Toward Crystal Springs Lake from San Mateo Comment
  CAS-BOT-BC272185  Leymus triticoides Elizabeth McClintock; Paul Reeberg 1988-10-31 s.n. San Mateo South side of Crocker Industrial Park just east of West Powerline, San Bruno Mountains 60 Comment
  UCD65579  Leymus triticoides August L. Hormay 1932-5-29 s.n. San Mateo Near San Bruno. Comment
  JROH2986  Ligustrum vulgare John Rawlings 2007-4-11 1052 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the cleared area of private property bordering the Preserve and Corte Madera Creek 115 Comment
  JEPS67912  Lilaea scilloides L. R. Heckard and J. H. Thomas 1972-4-16 2895 San Mateo ca 1.5 mi s Pulgas Water Temple (sw of Upper Crystal Springs Reservoir, along Old Canada road (private)) 121 Comment
  UC137902  Limnanthes douglasii subsp. douglasii C. F. Baker 1903-4-8 1916 San Mateo San Andreas Lake Comment
  RSA14962  Limnanthes douglasii subsp. douglasii L. S. Rose 1935-5-4 35146 San Mateo Skyline Blvd., W. of San Bruno. Comment
  UCD169374  Limnanthes macounii T. W. Henrich 2004-4-21 s.n. San Mateo Moss Beach. Adjacent to Hwy 1 and immediately east of Half Moon Bay Airport, on Cabrillo Ranch property. Comment
  CDA36142  Limonium binervosum Michael Perlmutter 2011-6-15 San Mateo Burlingame, Sanchez Marsh. 0 Comment
  CDA36723  Limonium binervosum Michael Perlmutter 2011-6-15 San Mateo South San Francisco; Oyster Point Marina. 0 Comment
  SEINET3696424 Image available Linanthus androsaceus Lewis S. Rose 1933-4-30 33135 San Mateo Redwood City. Comment
  NY336940  Linanthus croceus A. Eastwood 1901-5-19 San Mateo Bleubuin? Comment
Read comments Nov 16 2015
  CDA6327  Linaria genistifolia subsp. dalmatica A. Roach 1970-12-22 San Mateo Southern Pacific Railroad tracks, 50 yards south of the east end of 14th Avenue, San Mateo. 0 Comment
  CAS-BOT-BC389735  Lithocarpus densiflorus J. Lovelle 1973-7-29 26 San Mateo Pescadero Cr. Comment
  CAS-BOT-BC36067  Lithocarpus densiflorus var. densiflorus W. R. Dudley 1893-5-27 s.n. San Mateo Mt. Side above Woodside Comment
  CAS-BOT-BC36072  Lithocarpus densiflorus var. densiflorus Josephine D. Randall 1907-6-29 128 San Mateo Kings Mt. Road Comment
  CAS-BOT-BC36075  Lithocarpus densiflorus var. densiflorus Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  POM222890  Lithocarpus densiflorus var. densiflorus S. S. Berry 1899-3-13 s.n. San Mateo King's Mountain Road. 549 Comment
  CAS-BOT-BC430771  Lithophragma affine A. A. Heller 1907-4-25 8464 San Mateo San Bruno Hills Comment
  CAS-BOT-BC436225  Lithophragma heterophyllum D. E. Breedlove 1974-5-13 36209 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  CAS-BOT-BC436223  Lithophragma heterophyllum Paul Arnaud 1941-4-19 s.n. San Mateo Redwood City - Hills, after Hesler farm entrance. Comment
  UC570868  Lithophragma heterophyllum Herbert L. Mason 1927-4-23 3684 San Mateo along road between La Honda and Pescadero Creek; road between La Honda and Pescadero Creek Comment
  CAS-BOT-BC342468  Logfia gallica J. H. Thomas 1961-5-14 9388 San Mateo Southern part of San Francisco Watershed Reserve near Roth Estate 152 Comment
  CAS-BOT-BC283222  Lolium multiflorum Walter & Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountains. Guadalupe Road 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
  RSA585119  Lolium perenne D. D. Keck 1932-5-6 1474 San Mateo Millbrae Highlands Comment
  UCD164421  Lolium perenne Peter Rubtzoff 1977-6-21 9058 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, northwest of Fog Forest. Comment
  CAS-BOT-BC269124  Lolium perenne W. R. Dudley No date on label s.n. San Mateo Santa Cruz Mountain Peninsula. Top of higher hills from Jersey Farm to Sneath's Ranch Comment
  RSA452094  Lomatium dasycarpum subsp. dasycarpum Glenn A. Gorelick 1967-2-10 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  JROH272  Lomatium macrocarpum John H. Thomas 1956-4-7 5625 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH273  Lomatium macrocarpum John H. Thomas 1956-4-7 5625 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC240584  Lonicera hispidula Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  CAS-BOT-BC240590  Lonicera hispidula Josephine D. Randall 1907-6-29 20 San Mateo Santa Cruz Peninsula. Los Trancos Creek near Stanford University Comment
  JROH1659  Lonicera hispidula John Hunter Thomas 1980-6-5 19997 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1664  Lonicera hispidula John Hunter Thomas 1989-5-9 24721 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS85576  Lonicera hispidula var. vacillans Craig Dremann 1986-8-30 323 San Mateo e La Honda (along Cal. Highway 84 (Woodside-La Honda Road), mile marker 6.68, 150 ft w between road and creek) Comment
  POM46727  Lonicera hispidula var. vacillans A. D. E. Elmer 1903-07 4596 San Mateo Lake San Andreas. Comment
  POM46744  Lonicera hispidula var. vacillans Edward L. Greene 1901-9-2 1533 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC241541  Lonicera involucrata var. ledebourii A. D. E. Elmer 1903-6-1 4272 San Mateo Lake San Andreas Comment
  CAS-BOT-BC243971  Lonicera involucrata var. ledebourii Carl B. Wolf 1929-5-25 3733 San Mateo 2 mi. from Pescadero on Alpine Creek 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
  UC595117  Lonicera involucrata var. ledebourii David D. Keck 1938-5-30 4726 San Mateo San Gregorio 30 Comment
  CAS-BOT-BC290619  Lotus Peter Rubtzoff 1987-7-31 9821 San Mateo Best Products Company parking lot on east side of Gellert Blvd. north of Westborough Blvd. intersection, South San Francisco. Comment
  POM16716  Lotus formosissimus A. D. E. Elmer 1903-04 4860 San Mateo Lake San Andreas Comment
  UC15579  Lotus formosissimus Alice Eastwood Apr 1896 San Mateo between Crystal Springs and Millbrae Comment
  CDA28794  Lotus junceus D. G. Kelch 2009-6-9 9 .397 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
  POM16747  Lotus scoparius var. scoparius A. D. E. Elmer 1903-06 4447 San Mateo San Mateo Comment
  JROH3078  Ludwigia peploides subsp. peploides John Hunter Thomas 1981-7-12 20706 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC60244  Lunaria annua Miss H. Thompson 1907-4-6 s.n. San Mateo Roadside near Woodside. Comment
  SEINET5766884 Image available Lupinus affinis Dunn 1946-1 2601 San Mateo top of Ganyon Rd., 0.7 mi E of jct with Skyline Blvd., jct is 20.8 mi from bridge on N side of Boulder Creek; San Francisco Peninsula Comment
  POM77734  Lupinus affinis C. P. Smith 1921-4-9 3290 San Mateo San Mateo Canyon Comment
  SEINET5766835 Image available Lupinus albifrons Lewis S. Rose 1931-1 s.n. San Mateo Belmont Comment
  SEINET10488392  Lupinus albifrons Randall 1907-7-23 RANDALL 199 San Mateo Near crystal springs lake Comment
  CAS-BOT-BC195804  Lupinus albifrons var. albifrons Charles Piper Smith 1921-4-9 3291 San Mateo San Mateo Canyon. Half Moon Bay Road Comment
  CAS-BOT-BC195794  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-22 48499 San Mateo Highway 5 - junction Woodside 6 mile road, 2.8 miles north Comment
  CAS-BOT-BC196128  Lupinus albifrons var. collinus A. D. E. Elmer 1903-5-1 4642 San Mateo San Bruno Hills Comment
  RSA0060733  Lupinus albifrons var. collinus Daisie Huang 2006-8-6 06080601 San Mateo Fifield Ridge, inside San Francisco Water Authority land. 386 Comment
  SEINET5766825 Image available Lupinus albifrons var. collinus Lewis S. Rose 1931-1 s.n. San Mateo San Francisco Bay region 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-BC8523  Lupinus apricus C. P. Smith 1908-5-2 1427 San Mateo Stanford University. Stockfarm bridge. Comment
  CAS-BOT-BC196431  Lupinus arboreus Charles Piper Smith 1922-4-1 3462 San Mateo Montara Mountain Comment
  UC1129343  Lupinus arboreus A. E. Wieslander 1928-9-26 34 San Mateo 2 mi s San Gregorio (Plot #13); Santa Cruz Quad., s of San Gregorio Comment
  UCD106655  Lupinus arboreus June McCaskill 1954-5-8 297 San Mateo Moss Beach. Comment
  POM349927  Lupinus arboreus var. arboreus Ynez Whilton Winblad 1934-7-4 s.n. San Mateo Taken in the sand dunes at Pescadero Beach. Comment
  JEPS101819  Lupinus arboreus var. eximius Dean W. Taylor 2000-4-25 17437 San Mateo along dirt road 1 mi W of North Peak, Montara Mountain 411 Comment
  UC81971  Lupinus bicolor C. F. Baker 1903-4-8 1921 San Mateo San Andreas Lake Comment
  SEINET10484981  Lupinus bicolor var. umbellatus Roderick 1965-3-21 RODERICK s.n. San Mateo Summit at power line ridge. Usually up to about a dozen plants in a colony. Comment
  SEINET12154528  Lupinus densiflorus var. aureus G. A. McCallum 1933-1 s.n. San Mateo Los Franus ranch Comment
  RSA413555  Lupinus densiflorus var. densiflorus E. A. Purer 1933-8-25 5512 San Mateo Skyline Drive. Comment
  POM10690  Lupinus densiflorus var. palustris C. F. Baker 1902-5-1 850 San Mateo Crystal Springs Lake. Comment
  SEINET246721  Lupinus formosus Russell J. Molyneux 2003-7-2 San Mateo Smip Ranch, vicinity of 'Black Pearl' sculpture 398 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
  POM10876  Lupinus formosus var. formosus C. F. Baker 1903-4-1 1708 San Mateo Black Mountain. 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
  UC127015  Lupinus latifolius var. latifolius J. Burtt Davy 1895-4-20 1085 San Mateo San Mateo Creek Comment
  UCSC011283  Lupinus latifolius var. latifolius Unknown 1972-5-26 s.n. San Mateo Waddell Creek Area Comment
  JROH2131  Lupinus nanus John H. Thomas 1976-4-30 18100 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2133  Lupinus nanus John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD109095  Lupinus nanus Carl B. Mankinen 1967-4-5 s.n. San Mateo on State Highway 1, 1.8 miles northwest of Gazos Creek. Comment
  SEINET10490142  Lupinus nanus subsp. latifolius William R. Dudley 1894-4-11 Dudley UMO 67693 San Mateo Near menlo park reservoir. Comment
  SEINET10490839  Lupinus nanus subsp. nanus Walter Knight, Irja Knight 1967-6-6 Knight 2070 San Mateo Point san bruno. Comment
  CAS-BOT-BC157981  Lupinus polycarpus Peter Rubtzoff 1979-7-26 9296 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. In upper par to fEast Fork Colma Creek canyon area Comment
  JEPS81168  Lupinus polyphyllus Edward Lee with H. L. Mason 1935-6-16 1529 San Mateo between Ano Nuevo and Franklin Point; between Ano Nuevo and Franklin Point Comment
  POM11074  Lupinus polyphyllus var. grandifolius A. D. E. Elmer 1903-05 s.n. San Mateo San Pedro. Comment
  POM77615  Lupinus vallicola subsp. apricus C. P. Smith 1921-3-12 3227 San Mateo University Park Comment
  RSA178676  Lupinus vallicola subsp. apricus L. R. Abrams 1926-4-19 s.n. San Mateo Junction of Los Trancos and San Francisquito Creek. Comment
  SD60197  Lupinus vallicola subsp. apricus J. I. McMurphy 1911-4-24 San Mateo Corner between San Francisquito & Los Francos Creek near Stanford University Comment
  POM276547  Lupinus variicolor Lyman D. Benson 1930-4-6 2041 San Mateo Moss Beach. West slope. 15 Comment
  UC127021  Lupinus variicolor Alice Eastwood April 1896 San Mateo bet. Crystal Springs and Millbrae; bet. Crystal Springs and Millbrae Comment
  UC82051  Lupinus variicolor Dr. E. B. Copeland 1903-6-3 3302 San Mateo Montara Point Comment
  UC865524  Lupinus variicolor Alice Eastwood and John Thomas Howell 1938-6-26 6052 San Mateo Montara Mt. , Montara Mt. (above Point San Pedro) Comment
  SEINET10489106  Lupinus variicolor Edwin B. Copel 1903-6-3 Copeland 3301 San Mateo Montara point. Comment
  SEINET12154796  Lupinus variicolor E. H. Graham 1931-1 6923 San Mateo Ano Nuevo Pt, S of San Francisco Comment
  JROH4527  Luzula comosa var. comosa John Hunter Thomas 1981-4-23 20485 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC441267  Luzula macrantha E. A. McGregor 1908-3-9 s.n. San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC441269  Luzula macrantha Elmer I. Applegate 1895-3-9 753 San Mateo Near Woodside Comment
  CHSC106625  Luzula subsessilis Peter F. Zika 2010-5-1 24790 San Mateo Above SE shore of Alpine Pond, Santa Cruz Mountains, San Francisco Bay (SnFrB) 660 Comment
  JEPS101278  Luzula subsessilis Dean W. Taylor 1988-3-16 9405 San Mateo San Bruno Mountain, summit of mountain, along fire road ca. 120 m east from summit parking lot 371 Comment
  JROH3365  Lysimachia arvensis John H. Thomas 1975-4-18 17787 b San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5568  Lysimachia arvensis John Rawlings 2013-4-19 1151 San Mateo Jasper Ridge Biological Preserve, Stanford University. South edge of Trail 11 in chaparral. 145 Comment
  RSA0011333  Lythrum hyssopifolia John H. Thomas 1959-7-8 8020 San Mateo Pescadero Beach. Comment
  UCR121566  Lythrum hyssopifolia George K. Helmkamp, E. A. Helmkamp 1999-6-28 4988 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  RSA0011331  Lythrum hyssopifolia Josephine Randall 1907-6-29 244 San Mateo Kings Mt. Road; Santa Cruz Peninsula. Comment
  CAS-BOT-BC342589  Madia Cherie Wetzel 1969-7-28 994 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  RSA210921  Madia Cherie L. Wetzel 1969-7-28 994 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC343915  Madia elegans J. H. Thomas 1958-9-15 7475 San Mateo 0.4 miles north of dam on San Mateo Creek along Skyline Blvd. 91 Comment
  RSA11149  Madia elegans subsp. elegans C. B. Wolf 1929-5-17 3713 San Mateo 1 mile W of Skyline Drive on Alpine Road. Comment
  CAS-BOT-BC344487  Madia exigua W. R. Dudley 1906-6-11 s.n. San Mateo Santa Cruz Mountain Peninsula. Field E. of Kings Mt. House Comment
  JROH1041  Madia exigua John H. Thomas 1961-6-7 9531 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1043  Madia exigua John H. Thomas 1967-5-31 12925 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC343323  Madia gracilis John H. Thomas 1967-5-2 12808 San Mateo San Bruno Mountain. About 1/4 mile up Market St. from new school in canyon Comment
  CAS-BOT-BC343338  Madia gracilis David D. Keck 1932-6-1 1787 San Mateo Above Woodside on the La Honda road, east slope of the Santa Cruz Mtns. 305 Comment
  JROH1078  Madia gracilis John Hunter Thomas 1981-5-8 20559 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1084  Madia gracilis John Hunter Thomas 1985-5-7 23642 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC343325  Madia gracilis Gwendolan Newell 1914-6-18 s.n. San Mateo Raymonds ranch, Los Gatos Comment
Read comments Oct 28 2021
  CAS-BOT-BC345111  Madia sativa Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  CAS-BOT-BC345125  Madia sativa Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  JROH1098  Madia sativa John H. Thomas 1963-6-23 10163 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of ridge 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
  CAS-BOT-BC345108  Madia sativa W. R. Dudley 1901-5-11 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Colma Comment
  JROH1110  Madia sativa John Hunter Thomas 1982-7-22 21088 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  POM298334  Madia sativa D. D. Keck 1930-10-15 988 San Mateo SW of Woodside 457 Comment
  SEINET11810637  Madia sativa Unknown 1932-1 9191 San Mateo Los Francos Woods Comment
Read comments Nov 1 2021
  CHSC20345  Maianthemum racemosum L. A. Wright Jr. 1971-4-4 21 San Mateo 0.6 miles on Bean Hollow Road off of Pescadero Road, ca. 1.0 mi e of Highway 1. About 10 ft off of the n edge of the road. 60 Comment
  JROH4702  Maianthemum racemosum John Hunter Thomas 1989-6-17 24777 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  SEINET12055170  Maianthemum racemosum subsp. amplexicaule R. S. Croker 1929-1 s.n. San Mateo Summit Jasper Ridge Comment
  JROH4704  Maianthemum stellatum John H. Thomas 1969-4-12 14885 San Mateo Jasper Ridge Biological Preserve, Stanford University. Redwoods below dam Comment
  JROH4709  Maianthemum stellatum John Hunter Thomas 1977-6-16 18746 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC514155  Maianthemum stellatum R. Bacegalupi 1922-3-1 s.n. San Mateo Pescadero Creek Comment
  CAS-BOT-BC514160  Maianthemum stellatum W. R. Dudley 1900-3-18 s. n. San Mateo Near San Andreas Comment
  UC871285  Malacothamnus davidsonii Alice Eastwood 1912-6-10 346 San Mateo Crystal Springs Comment
  JROH2970  Malva nicaeensis John Hunter Thomas 1983-5-23 22240 B San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack side & low-flow crossing Comment
  SD39324  Malvella leprosa Edith Purer 1933-8-13 5424 San Mateo Field, Santa Clara Valley near Belmont Comment
  UCSB16369  Marah fabacea Schulte, John 1963-4-14 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mounatins 152 Comment
  RSA176525  Marrubium vulgare John H. Thomas 1962-7-15 9919 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC422681  Meconella californica Elizabeth McClintock 1967-4-16 s.n. San Mateo San Bruno Mountain. Buckeye Canyon. Comment
  POM149359  Meconella californica A. D. E. Elmer 1903-04 4499 San Mateo San Mateo, toward Crystal Springs 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
  JROH2165  Medicago polymorpha John H. Thomas 1967-5-10 12863 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2176  Medicago polymorpha John Hunter Thomas 1992-5-14 25229 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat ramp Comment
  CAS-BOT-BC269446  Melica californica Phillip C. Wheeler 1965-5-18 s.n. San Mateo San Bruno Mountain. Base of the mountain near Olivet Cemetery Comment
  CAS-BOT-BC269473  Melica californica LeRoy Abrams 1901-5-1 1568 San Mateo Woodside Comment
  CAS-BOT-BC269475  Melica californica L. R. A. 1902-5-4 2407 San Mateo Woodside Comment
  JROH5306  Melica imperfecta John Hunter Thomas 1980-5-8 24852 San Mateo Jasper Ridge Biological Preserve, Stanford University. Low-flow crossing. Comment
  CAS-BOT-BC264242  Melica torreyana Dean Wm. Taylor 1988-4-8 9512 San Mateo Northern slope of southeast ridge of the mountain near the ridgecrest (San Francisco South 7 1/2 U.S.G.S quadrangle, right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain, San Bruno Mountain 237 Comment
  JROH5315  Melica torreyana John H. Thomas 1975-5-26 17904 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC264251  Melica torreyana W. R. Dudley 1900-3-18 s.n. San Mateo By road to Jersey Farm, Santa Cruz Mountain Peninsula 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
  CAS-BOT-BC257357  Melilotus indicus Peter Rubtzoff 1988-6-9 9923 San Mateo San Bruno Mountains, Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, along Old Guadalupe Road in the northwestern part of the Saddle area, east of Saddle Trail junction. Comment
  RSA217959  Mentha Phillip C. Wheeler 1965-7-7 s.n. San Mateo San Bruno Mountains; Crocker Avenue Comment
  JROH2804  Mentha pulegium M. N. Paulson 1914-10-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1714386  Mentha pulegium U. S. Grant IV 1926-9-6 San Mateo King's Mt. 609 Comment
  JROH2811  Mentha pulegium John H. Thomas 1978-9-24 19338 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Searsville Lake Comment
  JROH2825  Mentha pulegium John Hunter Thomas 1991-11-21 25106 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing of San Francisquito 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
  UC1191375  Mesembryanthemum nodiflorum Malcolm A. Nobs 1948-12-20 721 San Mateo Redwood City, yacht harbor Redwood City Comment
  UCD96996  Mesembryanthemum nodiflorum William Anderson 1968-7-25 s.n. San Mateo At west approach of Dumbarton Bridge on south side of road, San Jose. Comment
  CAS-BOT-BC428902  Micranthes californica George Oberlander 1949-4-9 50 San Mateo San Francisco Watershed Reserve. Northern Sweeney Ridge Comment
  JEPS40609  Micropus californicus var. californicus R. F. Hoover 1941-4-23 4909 San Mateo Redwood City Hills Comment
  CAS-BOT-BC348577  Micropus californicus var. californicus Wm. Vortriede 1928-5-16 s.n. San Mateo Coloma Comment
  JROH1138  Microseris douglasii subsp. douglasii John H. Thomas 1955-5-6 4993 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1146  Microseris douglasii subsp. douglasii John Hunter Thomas 1981-5-8 20548 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC349032  Microseris douglasii subsp. douglasii John H. Thomas 1969-4-24 14903 San Mateo Near Canada College, Redwood City, near Farm Hill Drive Comment
  SEINET10842027 Image available Microseris leucocarpha Charles F. Baker 1902-5-4 Baker 808 San Mateo Woodside. Comment
  RSA10375  Mimulus aurantiacus var. aurantiacus H. A. Barker 1926-5-1 607 San Mateo Kings Mt. Comment
  JROH4078  Mimulus cardinalis John H. Thomas 1961-6-14 9544 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH4082  Mimulus douglasii Le Roy Abrams 1902-4-5 2293 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  UC26963  Mimulus grandis J. Burtt Davy Jun 21 1893-Jun 23 1893 1138 San Mateo Pilarcitos Lake and Canyon Comment
  JROH4089  Mimulus guttatus D. E. Breedlove 1971-5-5 19328 San Mateo Jasper Ridge Biological Preserve, Stanford University; on bluff above San Francisquito Creek, 500 yards below Searsville Dam Comment
  RSA10279  Mimulus guttatus H. A. Barker 1927-5-6 663 San Mateo Summit of Kings Mts. Comment
  RSA217981  Mimulus guttatus Walter Knight, I. Knight 1963-7-14 274 San Mateo Base of Quarry 2. San Bruno Mtn. Comment
  CAS-BOT-BC388835  Minuartia douglasii John H. Thomas 1971-5-2 15813 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  JROH1702  Minuartia douglasii John H. Thomas 1975-5-26 17901 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC204185  Minuartia douglasii A. D. E. Elmer April, 1903 5042 San Mateo San Bruno Hills Comment
  CAS-BOT-BC214071  Monardella villosa Charles Piper Smith 1908-5-31 1444 San Mateo San Mateo Canyon Comment
  CAS-BOT-BC214082  Monardella villosa Cherie Wetzel 1969-6-20 887 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC214173  Monardella villosa Gelsomina Smith 1951-6-5 106 San Mateo Searsville Lake edge 106 Comment
  CHSC68000  Monardella villosa subsp. franciscana Alison Graff 1993-7-13 M- 52 San Mateo Devils Slide, in arroyos on inland side of Hwy. 1. Comment
  UC1314253  Monardella villosa subsp. franciscana C. W. O'Brien 1966-8-14 C- 66 -48 San Mateo Lake Pilarcitos 213 Comment
  RSA184635  Monardella villosa subsp. franciscana Clare B. Hardham 13067 -A San Mateo San Bruno Hills Comment
  JROH2835  Monardella villosa subsp. villosa John H. Thomas 1963-6-23 10166 San Mateo Jasper Ridge Biological Preserve, Stanford University; near exclosure on northern slope of ridge Comment
  JROH1157  Monolopia gracilens Oz Garton 1968-4-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3355  Montia fontana Toni Corelli 2004-4-14 269 San Mateo Jasper Ridge Biological Preserve, Stanford University; wet area adjacent to trail 10 181 Comment
  CHSC57071  Myosotis latifolia Steven Triano 1988-5-24 185 San Mateo Along se side of Old La Honda Road ca 0.5 air miles e of Sky Londa. 405 Comment
  RSA133650  Myosotis latifolia John H. Thomas 1954-4-3 3815 San Mateo La Honda Creek, about 1 mile north of La Honda. 152 Comment
  UCD119519  Myosotis latifolia Alison Blake 2003-4-14 1 San Mateo 10' East of SE Corner of Volunteer Parking Lot off of S.Dr on Filoli property, NW of Filoli S.Gate at Canada Rd. 518 Comment
  CAS-BOT-BC101774  Myrica californica R. Bacigalupi 1922-3-1 s.n. San Mateo Arroyo de los Frijoles Comment
  CAS-BOT-BC101789  Myrica californica J. H. Thomas 1962-3-24 9838 San Mateo Isenberg Ranch near Langley Hill Comment
  CAS-BOT-BC166773  Myrica californica Peter Rubtzoff 1976-10-5 8907 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC260024  Nassella lepida Phillip C. Wheeler 1965-5-18 s.n. San Mateo San Bruno Mountain. Near base of mountain near Olivet Cemetary Comment
  UCD87671  Nassella pulchra Lewis S. Rose 1963-4-27 63000 San Mateo Skyline Blvd. West of San Mateo. 91 Comment
  JROH1568  Nasturtium officinale John H. Thomas 1955-5-6 4998 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3201  Navarretia heterodoxa John H. Thomas 1969-6-4 15113 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC101994  Navarretia heterodoxa Alice Eastwood Jun 1897 San Mateo Crystal Springs Comment
  JEPS48591  Navarretia squarrosa James G. Daly 1934-1 382 San Mateo near road to La Honda (San Gregorio watershed, on ridge of Santa Cruz Mts., sw San Mateo County); Santa Cruz Mts., San Gregorio Comment
  JROH3214  Navarretia squarrosa John Hunter Thomas 1977-6-16 18760 San Mateo Jasper Ridge Biological Preserve, Stanford University. Weedy area near old racing oval. Comment
  UCSC007750  Nemophila humifusa Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  UC131456  Nemophila menziesii C. F. Baker 1902-4-12 500 San Mateo La Honda Comment
  JROH2737  Nemophila menziesii var. menziesii D. D. Davis 1903-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  RSA15266  Nemophila menziesii var. menziesii Carl B. Wolf 1927-3-2 230 San Mateo Above Searsville Lake. Comment
  SEINET3840801  Nemophila parviflora Unknown 2005-6-21 5 .368 San Mateo Northeast corner of Pilarcitos Lake, SF Water District land 250 Comment
  JROH2742  Nemophila parviflora var. parviflora H. R. Davis 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Zoology Club shack Comment
  CAS-BOT-BC140437  Oemleria cerasiformis James R. Shevock 1973-1-1 2325 San Mateo Along Skyline Drive, Calif. highway 35. Near Lower Crystal Springs Reservoir Comment
  CAS-BOT-BC140449  Oemleria cerasiformis W. R. Dudley 1893-4-1 s.n. San Mateo Bear Gulch Road, Santa Cruz Mountains Comment
  JROH3704  Oemleria cerasiformis John H. Thomas 1958-2-15 6983 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3709  Oemleria cerasiformis John H. Thomas 1975-5-2 17852 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA77093  Oemleria cerasiformis D. D. Keck 1932-3-6 1396 San Mateo Near La Honda, Santa Cruz Mountains. Comment
  SD27759  Oemleria cerasiformis Carl B. Wolf 1927-2-26 222 San Mateo La Honda Grade 305 Comment
  SEINET5563016  Oemleria cerasiformis H. S. Gentry 1931-1 17 San Mateo 1.5 mile W of San Mateo, Half-Moon Bay road. Comment
  JROH3082  Oenothera elata subsp. hookeri Fay Gilbert 1920-5-31 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  RSA303928  Oenothera elata subsp. hookeri Jim R. Shevock 1970-11-25 549 San Mateo Coastal Strand 8 Comment
  SD27768  Oenothera elata subsp. hookeri Carl B. Wolf 1927-6-29 564 San Mateo On coast, 3.0 miles south of San Gregorio. Comment
  JROH2990  Olea europaea John H. Thomas 1967-6-1 12981 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3089  Orobanche vallicola James McMurphy 1906-8-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  POM286520  Orthocarpus densiflorus Arthur L. Cohen 1935-4-21 628 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  SEINET12270179  Orthocarpus densiflorus M. T. Doutt 1931-1 416 San Mateo Skyline Blvd, W of Hillbrae Comment
  SEINET3819130 Image available Orthocarpus densiflorus Lewis S. Rose 1932-4-10 32141 San Mateo Atherton. Comment
  RSA155567  Orthocarpus erianthus var. roseus L. S. Rose 1961-4-5 61034 San Mateo San Bruno Mountains. 366 Comment
  RSA51311  Orthocarpus erianthus var. roseus Peter H. Raven 1950-4-16 1814 San Mateo Between Geneva Ave, San Francisco Co and San Bruno Mts. 183 Comment
  RSA152408  Orthocarpus faucibarbatus var. albidus R. C. Bacigalupi, G. Thomas Robbins 1954-6-18 4562 San Mateo Immediately behind Point Ano Nuevo. Comment
  POM15377  Orthocarpus floribundus A. D. E. Elmer 1903-04 4522 San Mateo South San Francisco. Comment
  RSA516520  Orthocarpus floribundus W. L. Jepson 1919-4-19 8231 San Mateo S San Francisco. Comment
  SEINET12270154  Orthocarpus floribundus M. T. Doutt 1931-1 417 San Mateo Skyline Blvd, W of Hillbrae Comment
  POM15668  Orthocarpus lithospermoides A. D. E. Elmer 1903-06 4420 San Mateo Crystal Springs Lake. Comment
  SEINET12119094  Osmorhiza chilensis Unknown 1932-1 9173 San Mateo Los Francos Woods Comment
Read comments Oct 12 2021
  CHSC118350  Oxalis articulata subsp. rubra Dean Wm. Taylor 2016-2-23 21612 San Mateo Moss Beach; western shoulder bank of Highway 1 on the western ROW edge as it parallels Vallenman Street 18 Comment
  UC311197  Oxalis oregana A. D. E. Elmer March, 1903 4532 San Mateo Portola Comment
  RSA130344  Oxalis oregana W. R. Dudley 1894-3-26 s.n. San Mateo Santa Cruz Peninsula: Redwoods beyond Kings, Santa Cruz Range Comment
  SEINET10870216  Oxalis oregana R. D. Sage 1992-1-6 Sage 13395 -2 San Mateo Collected along purisima creek rd trail in purisima creek redwoods open space preserve. 9 Km w woodside. 244 Comment
  POM177457  Oxalis pes-caprae L. R. Abrams, I. L. Wiggins 1930-11-13 176 San Mateo Along Skyline Blvd. near Colma Comment
  CAS-BOT-BC318251  Packera breweri W. R. Dudley 1893-5-3 s.n. San Mateo Foothills near Stanford University. Comment
  LA14373  Parapholis incurva A. Hornay; 1932-5-29 sn San Mateo San Bruno Comment
  UC1101574  Parapholis incurva Malcolm A. Nobs and S. Galen Smith 1949-8-24 1566 San Mateo marshes at Sharp Park; marshes at Sharp Park Comment
  UCD88650  Parapholis incurva August L. Hormay 1932-5-29 s.n. San Mateo San Bruno. Comment
  CDA12444  Parentucellia viscosa G. F. Hrusa 1987-5-21 5342 San Mateo Ano Nuevo State Beach near visitor center. Comment
Read comments Mar 2 2010
  JROH1400  Pectocarya pusilla J. I. McMurphy 1911-5-11 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC266632  Pedicularis Ned Cahill 1975-2-21 402 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles from Redwood City Comment
  JEPS17981  Pedicularis densiflora George B. Rossbach 1955-3-12 488 San Mateo se end of Buriburi Ridge (nw side of San Mateo Creek); , San Mateo Creek 76 Comment
  JROH4110  Pedicularis densiflora John H. Thomas 1967-6-1 12970 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4117  Pedicularis densiflora John Hunter Thomas 1981-5-25 20631 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA117092  Pedicularis densiflora Carl B. Wolf 1927-3-2 235 San Mateo Above Searsville Lake. Comment
  RSA130980  Pedicularis densiflora A. M. Patterson 1907-4-27 s.n. San Mateo Kings Mt. Santa Cruz Peninsula. Comment
  SEINET5564051  Pedicularis densiflora H. S. Gentry 1931-1 15 San Mateo Collected 1.5 miles W of San Mateo, Half-Moon Bay Road. Comment
  CAS-BOT-BC266664  Pedicularis dudleyi D. D. Davis No date on label s.n. San Mateo Santa Cruz Peninsula. Iverson's Peter's Creek Comment
Read comments Jun 13 2020
  CAS-BOT-BC207021  Pelargonium vitifolium L. R. Abrams; I. L. Wiggins 1939-6-3 437 San Mateo 2 miles north of Pigeon Point Lighthouse Comment
  JROH96  Pellaea andromedifolia John H. Thomas 1971-4-25 15784 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH5702  Pellaea mucronata var. mucronata John Rawlings 2015-3-3 1312 San Mateo Jasper Ridge Biological Preserve, Stanford University. Rocky outcrop south side of low divide north of Trail 9. 114 Comment
  UCD134867  Pentachaeta alsinoides John H. Thomas 1958-5-10 7155 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  CAS-BOT-BC330498  Pentachaeta bellidiflora J. H. Thomas 1974-4-11 17133 San Mateo SE of Canada Road and Edgewood Road, NW of Woodside. 152 Comment
  POM88667  Pentachaeta exilis L. R. Abrams 1901-4-20 1533 San Mateo Mint [difficult to read] Bells Road. Comment
  CAS-BOT-BC384617  Pentagramma triangularis J. Lovelle 1973-8-5 36 San Mateo Mt. Ellen Trail Comment
  CAS-BOT-BC77006  Pentagramma triangularis subsp. triangularis Fred Hemphill 1973-4-22 788 San Mateo San Carlos - area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH111  Pentagramma triangularis subsp. triangularis John H. Thomas 1974-11-5 17663 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail below dam. Comment
  JROH115  Pentagramma triangularis subsp. triangularis John Hunter Thomas 1981-4-23 20487 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC222702  Perideridia gairdneri subsp. gairdneri V. F. Hesse 1954-7-30 1344 San Mateo Near Pebble Beach 15 Comment
  JROH311  Perideridia kelloggii John H. Thomas 1975-7-31 17981 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1389980  Perideridia kelloggii T. I. Chuang, F. M. Chuang, and S. Banwar 1965-8-3 6012 San Mateo 4.3 mi s Half Moon Bay (on Hwy 1) Comment
  JROH3269  Persicaria lapathifolia Roxana S. Ferris 1924-10-6 4094 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Comment
  JROH3273  Persicaria lapathifolia John Hunter Thomas 1979-9-9 19720 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH3271  Persicaria lapathifolia John Hunter Thomas 1979-9-9 19716 San Mateo Jasper Ridge Biological Preserve, Stanford University. Lake edge and delta. Comment
  CAS-BOT-BC419386  Persicaria punctata Roxana S. Ferris 1945-9-25 11107 San Mateo At Pedro Point, State Highway #1 Comment
  CAS-BOT-BC330312  Petasites frigidus var. palmatus W. R. Dudley 1894-3-23 s.n. San Mateo Santa Cruz Mountain Peninsula. By La Honda Creek, Redwoods above hotel Comment
  POM65447  Phacelia californica C. F. Baker 1902-5-1 690 San Mateo Crystal Springs Lake. Comment
  RSA128808  Phacelia californica Paul R. Hichborn 1920-4-25 s.n. San Mateo Crystal Springs Lake, Santa Cruz Mountain Peninsula. Comment
  UC131689  Phacelia californica C. F. Baker 1902-5-1 690 San Mateo Crystal Springs Comment
  UC909960  Phacelia californica John Thomas Howell 1938-5-1 13771 San Mateo Colma Canyon Comment
  JEPS2263  Phacelia ciliata var. ciliata Inez Ray Smith 1919-3-25 San Mateo Burlingame Comment
  POM65579  Phacelia distans C. F. Baker 1902-4-4 442 San Mateo Crystal Springs Lake Comment
  SEINET3158140  Phacelia distans L. S. Rose 1939-4-13 39065 San Mateo San Mateo Canyon near Crystal Springs Lake 61 Comment
  UC881073  Phacelia distans Lewis S. Rose 1939-4-13 39065 San Mateo near Crystal Springs Lake; San Mateo Canyon 60 Comment
  RSA10261  Phacelia distans H. A. Barker 1927-5-14 655 San Mateo North of Half Moon Bay. Comment
  RSA184848  Phacelia malvifolia L. S. Rose 1965-5-3 65057 San Mateo San Bruno Mountain, Colma Canyon. 61 Comment
  JROH5652  Phacelia rattanii John Rawlings 2014-6-10 1257 San Mateo Jasper Ridge Biological Preserve, Stanford University. Northeast side of prominent rock outcrop at southeast end of Searsville Lake near Rd. E 111 Comment
  JROH5355  Phalaris aquatica John Hunter Thomas 1978-7-2 19243 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
  UCD88021  Phalaris aquatica Alison Blake 2003-4-16 8 San Mateo Woodside. Filoli Center. S edge of Lower Parking Lot, along fenceline between Parking Lot and Heritage Orchard. Comment
  CAS-BOT-BC259000  Phalaris californica John Thomas Howell 1938-6-4 13885 San Mateo Burlingame Comment
  POM199083  Phalaris californica A. D. E. Elmer 1903-06 4699 San Mateo Crystal Springs Lake. Comment
  UCD88566  Phalaris californica P. B. Kennedy 1916-5-1 s.n. San Mateo Crocker Estate, Burlingame. Comment
  SEINET11695751  Phalaris californica Unknown 1962-6-11 6487 San Mateo 5 mi W of Belmont at junction of Ralston Avenue & Skyline Boulevard, foot of western slope of Pulgas Comment
  CAS-BOT-BC250647  Phalaris minor Paul Arnaud 1941-5-3 s.n. San Mateo Redwood City, Jefferson Avenue Comment
  RSA128643  Phalaris minor P. H. Raven 1950-6-3 297 San Mateo along Millbrae Ave., Millbrae. 61 Comment
  UCR123138  Phalaris minor George K. Helmkamp, E. A. Helmkamp 2001-6-2 6773 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
  JROH4291  Phoradendron serotinum subsp. tomentosum John H. Thomas 1965-12-19 11460 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4293  Phoradendron serotinum subsp. tomentosum John H. Thomas 1975-1-14 17674 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC452001  Phyllospadix scouleri Robert Setzer 1969-7-3 3311 San Mateo Montara Beach Comment
  UC1974569  Phyllospadix torreyi Megan Williams 2002-11-21 San Mateo Pigeon Point Comment
  RSA647542  Phyllospadix torreyi Judy Hansen 1969-6-29 s.n. San Mateo Pidgeon Point. Comment
  CAS-BOT-BC142180  Physocarpus capitatus Margaret A. Barry 1937-5-15 112 San Mateo Woods on Coal Mine Ridge Comment
  SEINET11809971  Picris echioides E. A. Purer 1933-1 5417 San Mateo Belmont Comment
  CAS-BOT-BC78643  Pinus halepensis Elizabeth McClintock 1989-3-1 s.n. San Mateo Brisbane, above Crocker Industrial Park Comment
  CAS-BOT-BC78644  Pinus halepensis Elizabeth McClintock; Paul Reeberg 1988-4-6 s.n. San Mateo above Brisbane, on ridge 750 feet west of Brisbane Ravine 121 Comment
  CAS-BOT-BC137294  Piperia elegans Margaret A. Barry 1937-9-24 220 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC137311  Piperia elegans James McMurphy 1906-8-24 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  JROH5966  Piperia transversa Alice Cummings, A. Lambrecht 2017-6-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Rd E through chaparral 135 Comment
  RSA594927  Piptatherum miliaceum John H. Thomas 1962-6-6 9907 San Mateo Near Palo Alto airport Comment
  CAS-BOT-BC135929  Pittosporum tenuifolium Elizabeth McClintock; Paul Reeberg 1989-8-31 s.n. San Mateo Willow Pond - San Bruno Mountains Comment
  JROH1407  Plagiobothrys bracteatus Herbert Dengler 1966-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS27368  Plagiobothrys chorisianus Rimo Bacigalupi with Jim Roof and L. Heckard 1961-4-24 7628 San Mateo just e KRON television tower and station (below and se of end of paved ridge-top road, on Guadalupe Valley side of the summit of San Bruno Mountain); San Bruno Mountain 304 Comment
Read comments Aug 22 2013
  SD99464  Plagiobothrys chorisianus John H. Thomas 1961-5-7 9258 San Mateo San Bruno Mountain. Comment
  UC1063805  Plagiobothrys chorisianus H. S. Yates 1935-5-8 5216 San Mateo 2 mi s Pescadero; Santa Cruz Quad. 60 Comment
  UC191864  Plagiobothrys chorisianus Edward Lee Greene 1886-5-10 San Mateo Belmont Comment
  UC78191  Plagiobothrys chorisianus Mrs. K. Brandegee 1890-5-22 San Mateo La Honda Comment
  CAS-BOT-BC228120  Plagiobothrys chorisianus David D. Keck 1933-5-11 2294 San Mateo Montara Light House and Radio Station Comment
  SDSU5438  Plagiobothrys chorisianus D. F. Howe 1969-6-6 4640 San Mateo 18.5 miles north of San Mateo - Santa Cruz Co. line on the # 1. Comment
  SD39907  Plagiobothrys chorisianus var. chorisianus Edith A. Purer 1933-7-27 5392 San Mateo Two miles south of Pigeon Point. Comment
  CAS-BOT-BC228165  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1893-5-2 s.n. San Mateo Between Kings Mountain and La Honda below Haymans Ranch Comment
  CAS-BOT-BC228175  Plagiobothrys chorisianus var. hickmanii W. R. Dudley 1900-3-16 s.n. San Mateo The Santa Cruz Mountain Peninsula. Along road between King's [Kings] Mountain and Half Moon Bay Comment
  CAS-BOT-BC389766  Plagiobothrys tenellus R. D. Hennessey 1964-4-26 s.n. San Mateo Area where Pilarcitos Creek empties into ocean Comment
  SD39269  Plagiobothrys undulatus Edith A. Purer 1939-6-1 7928 B San Mateo Sandy soil, Ano Nuevo Point Comment
  UCD124413  Plantago elongata June McCaskill 1954-5-8 293 San Mateo Moss Beach. Comment
  JROH3117  Plantago erecta John Hunter Thomas 1981-4-23 20483 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5932  Plantago erecta L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Top of Jasper Ridge Comment
  SEINET6205137  Plantago hookeriana var. californica L. S. Rose 1965-1 65056 San Mateo San Bruno Mtn, N end Comment
  CDA34447  Plantago lanceolata M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 869 San Mateo Pacifica: San Pedro Valley County Park, along Brooks Creek Trail. 148 Comment
  JROH3128  Plantago lanceolata John H. Thomas 1968-4-19 14292 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG51590  Plantago lanceolata J. Doty 1969-3-26 597 San Mateo 100 yards E of the jct of State Hwy 35 and 92 Comment
  UCSB18574  Plantago lanceolata Muirhead, M. 1964-4-17 San Mateo Crocker Estate, Hillsborough 76 Comment
  RSA788373  Plantago major Peter Rubtzoff, Roman Gankin 1975-9-11 8371 San Mateo Pond NW and across old Guadalupe Road from 'Saddle' area (which is located on north side of Guadalupe Canyon Parkway, west of Radio Road junction). Comment
  RSA187543  Plantago maritima John H. Thomas 1954-6-11 4281 San Mateo About 0.25 miles north of Pigeon Point Light House along low coastal bluffs. Comment
  UC931954  Plantago maritima var. californica Verne Grant and Alva Grant 1946-6-23 7696 San Mateo s of Daly City; San Francisco Peninsula Comment
  UC1192029  Plantago subnuda Malcolm A. Nobs and S. Galen Smith 1949-8-26 1583 San Mateo about 1 mi s Half Moon Bay Comment
  CAS-BOT-BC92010  Platystemon californicus W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula. Ravine north of Seal Cove. Comment
  CAS-BOT-BC92013  Platystemon californicus A. D. E. Elmer 1903-6-1 4853 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC92014  Platystemon californicus John H. Thomas 1974-5-7 17317 San Mateo San Bruno Mountain. Along Guadalupe Parkway opposite school. Comment
  CHSC24850  Platystemon californicus B. A. Rosene 1976-4-18 5 San Mateo Ca. 2.4 km nw of entrance to Calif. State Game Refuge. 182 Comment
  CAS-BOT-BC389703  Platystemon californicus L. Sigal 1969-5-1 s.n. San Mateo Skyline Boulevard - Burlingame Comment
  JROH4248  Plectritis ciliosa Carol Zabel 2006-4-24 58 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dirt trail up slope towards global change area, across from big parking area. Comment
  JROH5922  Plectritis congesta subsp. brachystemon H. J. Dengler 1964-3-29 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Grass island Comment
  JROH4252  Plectritis macrocera John H. Thomas 1977-4-29 18572 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC255564  Poa annua W. R. Dudley 1894-5-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside to Crystal Springs Comment
  JROH5400  Poa annua John H. Thomas 1977-2-20 18466 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5407  Poa annua John Hunter Thomas 1985-4-10 23514 San Mateo Jasper Ridge Biological Preserve, Stanford University. At Whiskey Hill gate. Comment
  CAS-BOT-BC254542  Poa douglasii J. H. Thomas 1965-5-1 10637 San Mateo At Pescadero Beach Comment
  CAS-BOT-BC261644  Poa infirma Peter Rubtzoff 1988-5-3 9912 San Mateo San Bruno Mountain, Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road in the northwest part of the Saddle area, east of Saddle Trail Junction. Comment
  CAS-BOT-BC261657  Poa infirma Peter Rubtzoff 1988-5-3 9918 San Mateo San Bruno Mountain, Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road in the northwest part of the Saddle area, near its crossing of the upper part of East Fork Colma Creek. Comment
  CAS-BOT-BC247422  Poa pratensis Phillip C. Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. No. West Radio Road Comment
  SEINET10659892  Poa pratensis Delzie Demaree 1932-5-8 Demaree 9118 San Mateo Half Moon Bay Comment
  CAS-BOT-BC237725  Poa secunda subsp. juncifolia Dr. E. B. Copeland 1903-4-20 1920 San Mateo San Andreas Lake Comment
  CAS-BOT-BC244253  Poa unilateralis Walter & Irja Knight 1965-3-21 s.n. San Mateo San Bruno Mountain. E of Brisbane power lines on ridge Comment
  CAS-BOT-BC244255  Poa unilateralis Javier Penalosa 1963-3-30 2755 San Mateo San Bruno Mountain. Crest of ridge SW of Brisbane, NW of power lines 304 Comment
  CAS-BOT-BC244248  Poa unilateralis W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of Montara Mountain Comment
  CAS-BOT-BC413805  Polycarpon tetraphyllum R. I. Gilbreath 1975-8-1 0085 San Mateo School yard near 366 Alberta Way, Hillsborough 167 Comment
  UCSC007771  Polycarpon tetraphyllum var. tetraphyllum Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  UC1080546  Polygala californica S. S. Tillett and I. Sternback 1956-6-24 531 San Mateo behind (n) Portola Camp Store (just outside Portola State Park); Middleton Property Comment
  SEINET10904450  Polygonum amphibium var. emersum Mary Susan Taylor 1978-8-30 Taylor 1869 San Mateo Comment
  CAS-BOT-BC413757  Polygonum argyrocoleon John Thomas Howell 1953-6-3 29057 San Mateo Bayshore Highway, Redwood City Comment
  CAS-BOT-BC389685  Polygonum aviculare Jeanie Nieri 1953-2-3 23 San Mateo Growing three miles west of Hillsdale Comment
  CAS-BOT-BC413944  Polygonum aviculare subsp. aviculare Thomas R. Mertens 1963-9-28 6 San Mateo 1-2 miles north of Santa Cruz County line on State Highway 1 Comment
  JROH3259  Polygonum aviculare subsp. depressum John H. Thomas 1974-8-3 17498 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC414235  Polygonum aviculare subsp. depressum J. H. Thomas 1963-7-19 10180 B San Mateo Ano Nuevo Point Comment
  JROH3262  Polygonum aviculare subsp. depressum John Hunter Thomas 1980-11-27 20187 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta. Comment
  RSA176406  Polygonum coccineum John H. Thomas 1964-10-2 10510 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Edge of Searsville Lake near Bridge. Comment
  CAS-BOT-BC109241  Polygonum paronychia Carl B. Wolf 1929-5-25 3726 San Mateo Pebble Beach south of Pescadero. Comment
  POM216540  Polygonum paronychia D. D. Keck 1931-10-5 1288 San Mateo 1 mile N of Salada Beach, 200 meters from ocean. Comment
  SD27835  Polygonum paronychia Carl B. Wolf 1929-5-25 3726 San Mateo Pebble Beach so. of Pescadero Comment
  UC1936265  Polypodium Robert Price 1983-1-10 627 San Mateo Pulgas Ridge, just ENE of Crystal Springs Reservoir, ca. 1/8 mi ENE of entry gate on Bunker Hill Ave. Comment
  CAS-BOT-BC76915  Polypodium californicum J. H. Thomas 1949-3-29 197 San Mateo King's Mountain. Comment
  JROH5939  Polypodium californicum John Rawlings 2017-2-22 1959 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trailside rock outcrop, low end of Buckeye Alley, Trail 9 117 Comment
  CAS-BOT-BC76901  Polypodium californicum Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain - grassy slope above Hillside Blvd., south San Francisco Comment
  CAS-BOT-BC76912  Polypodium californicum W. R. Dudley 1896-2-16 s.n. San Mateo Santa Cruz Mountain Peninsula - Devil's Canyon, Black Mountain Comment
  JROH82  Polypodium californicum John H. Thomas 1977-4-2 18510 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UCSC007770  Polypodium californicum Becky Hendricks, Shayne Coppedge 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC76806  Polypodium glycyrrhiza W. R. Dudley 1898-3-5 s.n. San Mateo Santa Cruz Peninsula - King's Mountain Comment
  CAS-BOT-BC76807  Polypodium glycyrrhiza Rachael A. Tickner 1974-1-1 s.n. San Mateo Butano Sandstone Bluffs, Butano State Park, southern part of county. Comment
  UC42914  Polypodium scouleri J. Burtt Davy 1893-6-22 San Mateo top of Pilarcitos Canyon Comment
  CAS-BOT-BC72107  Polypodium scouleri Walter Knight; Irja Knight 1964-4-25 695 San Mateo unspecified Comment
  CAS-BOT-BC233159  Polypogon interruptus H. A. Dutton 1900-4-29 s.n. San Mateo Santa Cruz Peninsula Comment
  CAS-BOT-BC237342  Polypogon monspeliensis Phillip Wheeler 1965-6-8 s.n. San Mateo San Bruno Mountain. Bayshore Comment
  JROH5445  Polypogon monspeliensis John H. Thomas 1974-10-29 17644 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  SD39924  Polypogon monspeliensis Edith A. Purer 1933-7-27 5370 San Mateo Sand dunes, Pigeon Point Comment
  UC1100375  Polypogon monspeliensis Malcolm A. Nobs and S. Galen Smith 1949-8-26 1609 San Mateo about 1 mi s Pigeon Point; s of Pigeon Point Comment
  CAS-BOT-BC237589  Polypogon viridis Philip Wheeler 1965-6-8 s.n. San Mateo San Bruno Mountain. Crocker Industrial Park Comment
  JROH4820  Polypogon viridis John Hunter Thomas 1983-7-7 22816 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just below dam. Comment
  RSA100973  Polypogon viridis G. Oberlander 1949-7-10 243 San Mateo Marsh, Upper Crystal Springs Lake, San Francisco. Watershed Reserve Comment
  CAS-BOT-BC72229  Polystichum dudleyi Alice Eastwood 1933-5-31 s.n. San Mateo Butano Canyon Comment
  JROH46  Polystichum dudleyi Lawrence J. Winship 1974-11-2 2 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH52  Polystichum dudleyi Ann Lambrecht 2005-10-26 22 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Trail 2 on creek bank 60 m beyond first drainage past intersection of Trails 1 & 5. Comment
  CAS-BOT-BC76608  Polystichum munitum J. H. Thomas 1949-3-29 198 San Mateo King's Mountain Comment
  CAS-BOT-BC76648  Polystichum munitum Le Roy Abrams 1902-1-12 2256 San Mateo King's Mountain Comment
  UCD164339  Polystichum munitum Peter Rubtzoff 1976-10-5 8905 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC105564  Populus trichocarpa J. Ed. McClellan; Bonnie McClellan 1976-3-24 s.n. San Mateo Pilarcitos Creek (west of the Coast Highway) at Half Moon Bay Comment
  JROH3842  Populus trichocarpa John H. Thomas 1976-4-30 18099 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Dam. Comment
  JROH5844  Potamogeton crispus P. Heiple, A. Lambrecht 2008-8-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  CAS-BOT-BC267167  Potamogeton foliosus H. L. Mason 1921-5-28 s.n. San Mateo Lagoon back of Near Years Pl Comment
  RSA3934  Potamogeton foliosus W. R. Dudley 1909-10-10 s.n. San Mateo Near boat landing, club house Capital Springs Reservoir Comment
  UC519205  Potamogeton illinoensis N. L. Gardner 1933-9-24 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC453736  Potamogeton illinoensis Charles W. O'Brien 1964-8-31 s.n. San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC453746  Potamogeton natans Roxana S. Ferris 1920-9-3 2043 San Mateo Santa Cruz Mountain Peninsula. Upper Mud Lake, Coal Mine Ridge Comment
  UC813943  Potamogeton nodosus Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9292 San Mateo Ano Nuevo Point Comment
  JEPS42973  Potamogeton nodosus W. L. Jepson 1910-8-18 4165 San Mateo White House Creek Comment
  CAS-BOT-BC454006  Potamogeton pectinatus W. R. Dudley 1902-9-21 s.n. San Mateo Santa Cruz Peninsula. Reservoir above Belmont School Comment
  CAS-BOT-BC454050  Potamogeton pusillus subsp. pusillus W. R. Dudley 1909-10-10 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Club House, Crystal Springs Reservoir Comment
  UCR141424  Potentilla anserina 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-BC141931  Potentilla anserina subsp. pacifica George Oberlander 1950-5-6 925 San Mateo Below San Andreas Dam - San Francisco Watershed Reserve Comment
  UC555624  Potentilla anserina subsp. pacifica Herbert L. Mason 1927-4-24 3701 San Mateo mouth of San Gregorio Creek Comment
  JROH4669  Prosartes hookeri John H. Thomas 1967-4-28 12728 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4673  Prosartes hookeri John H. Thomas 1973-5-5 16761 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC516351  Prosartes hookeri M. N. Paulson 1915-4-1 s.n. San Mateo Kings Mountain Comment
  JROH4671  Prosartes hookeri John H. Thomas 1969-4-20 14900 San Mateo Jasper Ridge Biological Preserve, Stanford University. Redwood area below dam Comment
  CAS-BOT-BC517386  Prosartes smithii Mrs. Boot 1940-4-7 1731 San Mateo Canyon near Half Moon Bay and Skyline Highway junction Comment
  CAS-BOT-BC517399  Prosartes smithii A. D. E. Elmer 1903-5-1 4697 San Mateo Butano Creek Comment
  UC1124441  Prunella vulgaris var. lanceolata N. K. Carlson 1935-6-28 97 San Mateo 1 mi e Pigeon Pt.; Santa Cruz Quad. Comment
  JROH3751  Prunus John Hunter Thomas 1981-4-5 20290 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek Comment
  POM275641  Prunus cerasifera Lyman D. Benson 1929-3-9 1001 San Mateo Stream bank at woodside Comment
  CAS-BOT-BC158177  Prunus emarginata A. D. E. Elmer 1903-5-1 4523 San Mateo Searsville Lake Comment
  CAS-BOT-BC154649  Prunus subcordata E. A. McGregor 1909-4-20 s.n. San Mateo Los Trancos Road (near bridge at Tilt - Villa) Comment
  CAS-BOT-BC154654  Prunus subcordata Margaret A. Barry 1938-4-21 248 San Mateo North slope on Los Trancos Creek near Coal Mine Ridge Comment
  POM140358  Prunus subcordata L. R. Abrams 1901-03 1168 San Mateo Portola, Los Troncos Creek. Comment
  CAS-BOT-BC156357  Prunus virginiana var. demissa D. E. Breedlove 1974-5-13 36207 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  SEINET11917626  Prunus virginiana var. demissa G. C. McMurphy 1906-4-28 16 San Mateo Santa Cruz Penninsula, Carte de Madera Comment
  CAS-BOT-BC356471  Pseudognaphalium beneolens Josephine D. Randall 1907-7-28 76 San Mateo Santa Cruz Peninsula. Black Mt. Road near Iverson's 335 Comment
  JROH754  Pseudognaphalium californicum John H. Thomas 1961-6-7 9534 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH766  Pseudognaphalium californicum John Hunter Thomas 1980-5-8 19940 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH777  Pseudognaphalium luteoalbum John H. Thomas 1974-10-29 17649 San Mateo Jasper Ridge Biological Preserve, Stanford University; Small peninsula created by drainage channel cut to accomodate water from Corte Madera Cr. Comment
  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-BC361568  Pseudognaphalium stramineum Lewis S. Rose 1966-8-6 66079 San Mateo San Bruno Mountain, Colma Canyon 121 Comment
  POM193082  Pseudotsuga menziesii W. R. Dudley 1894-3-24 s.n. San Mateo Bank of Pescadero Creek [? Pescadero handwriting unclear]; Santa Cruz Mountain Peninsula. Comment
  CAS-BOT-BC85909  Pseudotsuga menziesii W. R. Dudley 1899-8-27 s.n. San Mateo Near Sisson Tavern Comment
  JROH1185  Psilocarphus tenellus John Hunter Thomas 1978-4-25 19146 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC362029  Psilocarphus tenellus Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Ridge Road west of power lines Comment
  CAS-BOT-BC421314  Pterostegia drymarioides W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula. By grade south slope Montara Mts. 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
  CAS-BOT-BC460836  Pyrola aphylla H. L. Mason 1921-7-3 s.n. San Mateo Butano Ridge Comment
  JROH2535  Quercus X jolonensis W. R. Dudley 1906-1-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; by road to McDonough Ranch Comment
  CAS-BOT-BC104277  Quercus X morehus W. R. Dudley 1904-4-10 s.n. San Mateo Santa Cruz Mountain Peninsula, Goat Ranch Road near Alpine Road - Black Mt. Comment
  CAS-BOT-BC104279  Quercus X morehus James B. Roof 1965-4-25 s.n. San Mateo Sant Bruno Mountain, On top of ridge, N side of road, toward Brisbane power lines Comment
  CAS-BOT-BC105387  Quercus X morehus W. R. Dudley 1904-4-10 s.n. San Mateo Santa Cruz Mountain Peninsula, junction of Alpine and Great Round road, in a few yards E of junction of Corte Madera & Comment
  CAS-BOT-BC61712  Quercus agrifolia Ned Cahill 1974-4-30 237 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  SJSU16069  Quercus agrifolia Allen W. Jacobs 1936-12-8 32 San Mateo Found in Jasper Ridge. Comment
  SEINET12027457  Quercus agrifolia L. S. Rose 1938-1 38313 San Mateo 122 Comment
  JROH5868  Quercus agrifolia var. agrifolia David Y. Hollinger 1980-12-17 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC62307  Quercus chrysolepis Stkinson 1902-11-30 s.n. San Mateo Santa Cruz Mountain Peninsula, King's Mt. Comment
  CAS-BOT-BC94278  Quercus durata George Oberlander 1949-7-30 359 San Mateo San Francisco Watershed Reserve, southern boundary Comment
  UC942919  Quercus durata Lewis S. Rose 1950-5-20 50136 San Mateo w of Redwood City; Emerald Lake Region 243 Comment
  UCD20292  Quercus durata Paul Heiple 2002-5-18 s.n. San Mateo Edgewood Park near Redwood City. 191 Comment
  JROH2495  Quercus kelloggii W. R. Dudley 1893-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Comment
  JROH2502  Quercus kelloggii John H. Thomas 1971-8-7 16017 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2509  Quercus kelloggii John Hunter Thomas 1987-5-26 24323 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM223170  Quercus kelloggii S. S. Berry 1909-3-13 s.n. San Mateo Road below Woodside. 91 Comment
  UCD46742  Quercus kelloggii Edmond W. Holm 1993-11-26 s.n. San Mateo (Q. parvula var. shrevei (Muller) Nixon. California, San Mateo Co,; Huddart Park, near Miwok Picnic Area. Comment
  CAS-BOT-BC62887  Quercus lobata W. R. Dudley s.n. San Mateo Santa Cruz Island Comment
Read comments Oct 30 2021
  CAS-BOT-BC62891  Quercus lobata W. R. Dudley 1894-11-2 s.n. San Mateo Woodside road Comment
  SD38233  Quercus lobata Delzie Demaree 1929-10-17 3678 San Mateo King's Mountain Comment
  CDA34036  Quercus parvula D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .154 San Mateo Santa Cruz Mountains; Along Route 9, ~5 km E of Big Basin Redwoods. Comment
  UCD14074  Quercus parvula var. shrevei Stephen K. Langer 1988-11-5 s.n. San Mateo California, San Mateo Co.; Jones Gulch Y.M.C.A. Camp. Comment
  CAS-BOT-BC134793  Quercus wislizeni H. L. Mason 1929-12-1 s.n. San Mateo Swanton Comment
  CAS-BOT-BC134781  Quercus wislizeni W. R. Dudley 1902-11-28 s.n. San Mateo Santa Cruz Peninsula. In front of Murphy Place, Upper Pescadero Creek Comment
  CAS-BOT-BC362548  Rafinesquia californica Philip C. Wheeler 1965-5-11 s.n. San Mateo San Bruno Mountain. Pig Ranch Ravine Comment
  POM290129  Rafinesquia californica Lyman Benson 1937-6-27 8391 San Mateo Summit west of Belmont; Santa Cruz Mt. Range; S. F. Bay Watershed. 152 Comment
  SEINET209201  Ranunculus bloomeri Inez Smith 1915-3-15 San Mateo Hillsboro Comment
  UC277216  Ranunculus californicus H. M. Hall 1923-2-20 11844 b San Mateo Pigeon Point; 3.4 mi s of L.H., near sea Comment
  UC511335  Ranunculus californicus Lyman Benson 1931-3-15 2642 San Mateo Emerald Lake San Francisco Bay Watershed, Santa Cruz Mt. Range, Redwood C 152 Comment
  JROH3470  Ranunculus californicus John H. Thomas 1968-3-31 14258 San Mateo Jasper Ridge Biological Preserve, Stanford University. Meadow near crest of NE facing slope above Webb Ranch Comment
  POM268417  Ranunculus californicus Lyman Benson 1935-3-10 6256 San Mateo San Gregorio. Pacific Ocean 61 Comment
  RSA15247  Ranunculus californicus Carl B. Wolf 1927-2-19 208 San Mateo Spring Valley, on Belmont to Halfmoon Bay road Comment
  CAS-BOT-BC378530  Ranunculus californicus var. californicus Elizabeth McClintock 1965-3-28 s.n. San Mateo on grassy slope in flower garden adjacent to April Brook Comment
  POM268184  Ranunculus californicus var. cuneatus Lyman Benson 1935-3-10 6257 San Mateo Menlo Park. San Franciso Bay. 30 Comment
  SBBG71850  Ranunculus californicus var. cuneatus J. M. Tucker 1941-4-6 210 San Mateo Pigeon Point Comment
  RSA268183  Ranunculus californicus var. cuneatus Ralph Hoffman 1919-4-19 s.n. San Mateo Steep slope above Cyler's Comment
  JROH3477  Ranunculus hebecarpus John H. Thomas 1969-4-20 14894 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3486  Ranunculus hebecarpus John Hunter Thomas 1985-4-22 23547 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC575705  Ranunculus hebecarpus Lewis S. Rose 1935-5-1 35136 San Mateo Redwood City Comment
  JROH3490  Ranunculus hebecarpus John Hunter Thomas 1987-4-10 24187 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC202813  Ranunculus lobbii A. D. E. Elmer April, 1903 4734 San Mateo Alpine School House Comment
  UCR49694  Ranunculus lobbii J. J. McMurphy 1906-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula. Pond near Head of Crystal (?) Springs Lakes 85 Comment
  CAS-BOT-BC83427  Ranunculus lobbii W. R. Dudley 1964-4-22 s.n. San Mateo Santa Cruz Mountain Peninsula. Corte Madera Creek. Along New Grade Road. Comment
  UC204201  Ranunculus muricatus A. D. E. Elmer June 1903 4661 San Mateo San Pedro Comment
  POM256793  Ranunculus muricatus D. D. Keck 1940-5-19 5046 San Mateo Half Moon Bay, in low, fallow fields juct N of Tow Comment
  RSA10410  Ranunculus muricatus Carl B. Wolf 1927-6-15 2164 San Mateo Along Skyline Drive, 8 mi. S of San Francisco. Comment
  OBI37072  Raphanus sativus M. J. Erwin 1983-11-11 18 San Mateo Around Daggett residence, 100 yds W of Old Canada Rd, within property limits of Filoli Center, Canada Rd, Woodside Comment
  RSA100994  Rhamnus californica G. Oberlander 1949-7-30 246 San Mateo Crest of Sweeney Ridge, San Francisco Watershed reserve Comment
  UC1071558  Rhamnus californica T. Tyrrell 1928-9-26 9 San Mateo 2 mi s San Gregorio; Santa Cruz Quad. 91 Comment
  UC33635  Rhamnus californica subsp. californica Jos. Burtt Davy 1893-6-22 841 San Mateo Lake Pilarcitos Comment
  JROH3558  Rhamnus crocea Carl B. Wolf 1928-3-16 1540 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3568  Rhamnus ilicifolia John H. Thomas 1972-5-5 16078 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA7859  Rhamnus tomentella subsp. tomentella Carl B. Wolf 1928-2-11 1473 San Mateo 1/2 way up Kings Mt Comment
  CAS-BOT-BC305855  Rhodanthe chlorocephala subsp. rosea Elizabeth McClintock; Paul Reeberg 1988-10-3 s.n. San Mateo San Bruno Mountains. On north-facing slope of Bitter Cherry Ridge 167 Comment
  UC1121088  Rhododendron macrophyllum N. K. Carlson 1935-7-2 112 San Mateo 5 mi s of Bellvale 304 Comment
  CAS-BOT-BC56663  Rhododendron occidentale H. L. Mason 1921-7-3 s.n. San Mateo Butano Ridge Comment
  JROH182  Rhus integrifolia Toni Corelli 2007-3-7 332 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just off Road F where it joins with Trail 17 182 Comment
  CAS-BOT-BC437976  Ribes Alice Eastwood 1922-5-30 11332 San Mateo Crystal Springs Lakes Comment
  CAS-BOT-BC92997  Ribes californicum var. californicum Lewis S. Rose 1933-6-9 33226 San Mateo Belmont. Comment
  CAS-BOT-BC93010  Ribes californicum var. californicum Ned Cahill 1974-5-13 243 San Mateo Near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City. Comment
  CAS-BOT-BC93014  Ribes californicum var. californicum K. Haj Jaryh 1929-5-6 533 San Mateo La Honda Grade. Comment
  JROH2641  Ribes californicum var. californicum John H. Thomas 1968-3-17 14178 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2643  Ribes californicum var. californicum D. E. Breedlove 1971-5-31 19359 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  SEINET3558789 Image available Ribes malvaceum Lewis S. Rose 1933-3-2 33006 San Mateo Belmont. Comment
  CAS-BOT-BC212815  Ribes menziesii W. R. Dudley 1904-3-3 s.n. San Mateo Santa Cruz Mts Comment
  CAS-BOT-BC212821  Ribes menziesii W. R. Dudley 1894-7-7 s.n. San Mateo Top Bear Gulch Rd Comment
  CAS-BOT-BC212832  Ribes menziesii W. R. Dudley 1894-3-1 s.n. San Mateo Between Half Moon Bay and Woodside Comment
  CAS-BOT-BC212842  Ribes menziesii J. H. Thomas 1949-3-31 205 San Mateo King's Mountain Comment
  CAS-BOT-BC212813  Ribes menziesii W. R. Dudley 1898-4-15 s.n. San Mateo Unspecified Comment
  JEPS121700  Ribes menziesii var. menziesii Stella Yang 2013-5-10 San Mateo Los Troncos Open Space Preserve, Franciscan Loop Trail at Los Troncos Creek crossing Comment
  JROH6179  Ribes menziesii var. menziesii John Rawlings, Rebecca Reynolds 2017-11-14 2305 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 2, 400 m east of its intersection with Trail 5 99 Comment
  CAS-BOT-BC144640  Ribes sanguineum var. glutinosum R. Bacigalupi 1922-3-1 s.n. San Mateo Pescadero Creek Comment
  RSA0019103  Ribes sanguineum var. glutinosum I. L. Wiggins 1929-3-23 3371 San Mateo Road to Mud Lake, near Stanford University Comment
  CAS-BOT-BC168726  Ribes victoris Eric Walther 1919-8-1 s.n. San Mateo Woodside Comment
  CAS-BOT-BC207160  Ricinus communis J. H. Thomas 1960-11-11 8925 San Mateo Along Skyline Blvd., 1.1 mile S of intersection of Skyline Blvd. and Mill brae Avenue. Comment
  CAS-BOT-BC363091  Rigiopappus leptocladus John H. Thomas 1961-5-14 9382 San Mateo Just north of dam on San Mateo Creek 121 Comment
  JEPS15050  Rigiopappus leptocladus LeRoy Abrams 1902-5-4 2401 San Mateo Woodside Comment
  JROH1212  Rigiopappus leptocladus John Rawlings,Toni Corelli 2007-5-2 0907 San Mateo Jasper Ridge Biological Preserve, Stanford University. Upper Big Inlet drainage in serpentine near NW corner of West Serpentine Chaparral. 167 Comment
  POM87702  Rigiopappus leptocladus L. R. Abrams 1902-5-4 2401 San Mateo Woodside. Comment
  CAS-BOT-BC363085  Rigiopappus leptocladus J. I. McMurphy 1900-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula. On road between Byrne's Store and Woodside Comment
  CAS-BOT-BC341025  Robinia pseudoacacia L. R. Abrams 1921-5-3 s.n. San Mateo Prop. Tallocks garden, Stanford University Comment
  POM65802  Romanzoffia californica L. R. Abrams 1915-3-23 5568 San Mateo Crystal Springs - San Mateo Road on rocky bluff. Comment
Read comments Dec 31 2014
  CAS-BOT-BC74652  Rorippa curvisiliqua George Oberlander 1949-7-30 315 San Mateo San Francisco Watershed Reserve. Along Pilarcitos Creek. Comment
  SEINET11560757  Rorippa curvisiliqua N. L. Gardner 560 San Mateo San Francisco Peninsula, Merced Lake. Comment
  JROH1581  Rorippa palustris subsp. palustris John Hunter Thomas 1977-6-16 18808 San Mateo Jasper Ridge Biological Preserve, Stanford University; delta in Searsville Lake Comment
  JROH1583  Rorippa palustris subsp. palustris John Hunter Thomas 1979-9-9 19712 San Mateo Jasper Ridge Biological Preserve, Stanford University; on dam Comment
  CAS-BOT-BC147623  Rosa californica Alice B. Wright 1919-8-1 s.n. San Mateo Granada Comment
  CAS-BOT-BC147625  Rosa californica Ned Cahill 1974-6-21 333 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  UC527528  Rosa californica C. B. Wolf 1931-8-20 2327 San Mateo 2 mi back of Stanford University (near Schenckels Camp); Los Trancos Creek 91 Comment
  CAS-BOT-BC146696  Rosa gymnocarpa Margaret A. Barry 1937-5-15 85 San Mateo On Coal Mine Ridge Comment
  RSA246188  Rosa gymnocarpa E. K. Balls 1969-9-18 12174 San Mateo 6 miles S from jct (crossing) of Hwy 84 with Hwy 35 along the La Honda [road?]. Beside San Gregorio Creek. Comment
  JROH3763  Rosa gymnocarpa var. gymnocarpa John Hunter Thomas 1989-5-11 24738 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC5991  Rosa piscatoria Adolph Daniel Edward Elmer 1903-5-1 4923 San Mateo On the Pescadero Creek, Iverson's Place Comment
  JROH3772  Rubus parviflorus John H. Thomas 1973-5-5 16763 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC152867  Rubus parviflorus Phillip C. Wheeler 1965-7-8 s.n. San Mateo Quarry Canyon - San Bruno Mountain Comment
  POM222901  Rubus parviflorus var. velutinus S. S. Berry 1909-4-2 s.n. San Mateo Bear Creek Canyon Grade 244 Comment
  CAS-BOT-BC156768  Rubus spectabilis Walter Knight; Irja Knight 1964-4-25 1242 San Mateo Half way up Colma Canyon adjacent to creek. San Bruno Mountain Comment
  CAS-BOT-BC157087  Rubus ursinus James McMurphy 1902-3-22 s.n. San Mateo Above Portola Comment
  CAS-BOT-BC157096  Rubus ursinus George Oberlander 1949-4-9 25 San Mateo Pilarcitos Canyon Comment
  JROH3779  Rubus ursinus John H. Thomas 1977-4-29 18574 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA208241  Rubus ursinus John Thomas Howell; 1938-6-4 13888 San Mateo San Francisco Bay, Burlingame Comment
  RSA152260  Rubus ursinus I. L. Wiggins 1925-04 1660 San Mateo On Kings Mtn Rd 3/4 mile above Woodside. Comment
  CAS-BOT-BC422082  Rumex acetosella John H. Thomas 1963-7-19 10195 B San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  UCD163591  Rumex californicus Peter Rubtzoff 1980-8-4 9564 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC421575  Rumex crassus Lewis S. Rose 1954-10-4 54134 San Mateo Montara Comment
  CAS-BOT-BC433541  Rumex fueginus Roxana S. Ferris 1917-10-19 729 San Mateo Margin of Crystal Springs Lake Comment
  JROH3306  Rumex pulcher John H. Thomas 1967-6-1 12964 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC433827  Rumex pulcher Margaret A. Barry 1938-6-22 s.n. San Mateo Slope on Coal Mine Ridge Comment
  CAS-BOT-BC434131  Rumex transitorius Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo San Bruno Mountain. Crocker Hills Comment
  RSA18302  Rupertia physodes Carl B. Wolf 1927-5-31 414 San Mateo North end of Searsville Lake. Comment
  CAS-BOT-BC454107  Ruppia cirrhosa James McMurphy 1909-10-17 s.n. San Mateo San Gregorio Comment
  CDA38781  Rytidosperma caespitosum Eric Wrubel 2012-6-19 NPS 41 San Mateo Golden Gate National Recreation Area; Sweeney Ridge, Baquiano Trail. 0 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
  JROH1711  Sagina apetala John H. Thomas 1961-4-8 9073 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5558  Sagina apetala John Rawlings 2013-4-19 1155 San Mateo Jasper Ridge Biological Preserve, Stanford University; verge south side of Trail 11 in a level section in chaparral 144 Comment
  JROH1713  Sagina apetala John H. Thomas 1963-4-17 10036 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of road near the "riders shack" at the Searsville end of the ridge Comment
  UC1076484  Sagina decumbens subsp. occidentalis Herbert L. Mason 1927-4-23 3685 San Mateo outcrop on rd. from La Honda to Pescadero Creek Comment
  JEPS59843  Salicornia virginica unknown 1925-5-28 18 San Mateo Tunitas Comment
  OBI75779  Salix exigua Lewis S. Rose 1965-3-8 65003 San Mateo Searsville Lake 122 Comment
  JROH3844  Salix exigua var. hindsiana H. J. Dengler 1972-4-30 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Along levee road, south end of Searsville Lake Comment
  JROH3858  Salix laevigata Toni Corelli 2002-11-18 250 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 21, West side of Searsville Lake on lake trail that is east of the Field Station 106 Comment
  HSC19979  Salix lasiandra L. S. Rose 1965-3-16 65007 San Mateo Searsville Lake 122 Comment
  CAS-BOT-BC125368  Salix lasiandra var. lasiandra W. R. Dudley 1904-3-26 s.n. San Mateo San Gregorio Comment
  CAS-BOT-BC125378  Salix lasiandra var. lasiandra Lewis S. Rose 1965-3-8 65002 San Mateo Searsville Lake 121 Comment
  JROH3868  Salix lasiandra var. lasiandra W. R. Dudley 1903-4-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Searsville below the bridge Comment
  JROH3881  Salix lasiandra var. lasiandra Toni Corelli 2002-11-18 252 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 21, along eastern side of lake trail at west end of spillway 106 Comment
  CAS-BOT-BC107132  Salix lasiolepis Ira L. Wiggins 1976-4-20 22178 San Mateo Along N bank of San Francisquito Creek, near Pope Street Bridge, Menlo Park Comment
  CAS-BOT-BC107142  Salix lasiolepis L. R. Abrams 1915-3-13 5162 San Mateo Near junction of San Francisquito and Los Trancos Creeks, about 2 miles from Stanford University Comment
  LA208768  Salix lasiolepis David D. Keck; 1932-1-24 1356 San Mateo Portola 150.0 Comment
  POM161137  Salix lasiolepis L. R. Abrams 1915-3-13 5164 San Mateo Near jct of San Francisquito and Los Trancos creeks. About 2 miles from Stanford University. Comment
  POM281339  Salix lasiolepis Lyman D. Benson 1931-2-28 2612 San Mateo Above Woodside, King's Mtn. Santa Cruz mtn range. San Francisco Bay watershed. 244 Comment
  CAS-BOT-BC108256  Salix lasiolepis var. bigelovii Peter H. Raven 1964-9-13 19673 San Mateo San Gregorio Comment
  CAS-BOT-BC124487  Salix lasiolepis var. lasiolepis George Oberlander 1950-3-18 949 San Mateo San Andreas Lake Comment
  CAS-BOT-BC124489  Salix lasiolepis var. lasiolepis James McMurphy 1906-3-9 s.n. San Mateo Kings Mountain Comment
  SBBG32453  Salix lucida subsp. lasiandra L. S. Rose 1965-3-16 65007 San Mateo Searsville Lake 121 Comment
  SEINET3158751  Salix scouleriana L. S. Rose 1934-2-10 34025 San Mateo Skyline blvd. 4 mi S Kings Mtn. Comment
  CAS-BOT-BC126478  Salix sitchensis W. R. Dudley 1903-5-2 s.n. San Mateo Near Redwood Villa, La Honda Comment
  CAS-BOT-BC126483  Salix sitchensis L. R. A. 1902-3-1 2272 San Mateo Kings Mountain Comment
  CAS-BOT-BC126491  Salix sitchensis A. D. E. Elmer 1903-5-1 4917 San Mateo Portola Comment
  CAS-BOT-BC126502  Salix sitchensis W. R. Dudley 1904-3-7 69 San Mateo Bear Gulch, Santa Cruz Mts. 213 Comment
  CAS-BOT-BC126513  Salix sitchensis W. R. Dudley 1903-6-6 s.n. San Mateo Near mouth of Peters Creek below Iverson's Comment
  RSA169344  Salix sitchensis L. S. Rose 1964-3-14 64006 San Mateo Princeton. 6 Comment
  RSA788840  Salix sitchensis Peter Rubtzoff 1976-3-14 8448 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC176847  Salsola australis Elizabeth McClintock; Paul Reeberg 1988-4-26 s.n. San Mateo Guadalupe Canyon Parkway Comment
  POM62858  Salvia columbariae Edward L. Greene 1902-4-6 s.n. San Mateo Crystal Springs Lake, San Mateo County. Comment
  RSA15302  Salvia columbariae Carl B. Wolf 1927-4-3 s.n. San Mateo 1 mile above La Honda. Santa Cruz Mountains. Comment
  RSA681669  Salvia sonomensis Annuschka Deb 1989-4-19 114 San Mateo YBN Berm near parking lot Comment
  JEPS62786  Salvia spathacea W. L. Jepson 1921-4-3 9107 San Mateo Colma Canyon Comment
  POM63429  Salvia spathacea A. D. E. Elmer 1903-05 4440 San Mateo Colma. Comment
  UC1046499  Salvia spathacea R. Bacigalupi, L. Constance, Ritchie and Sarah Bell 1951-3-25 3204 San Mateo near San Francisco (Colma Canyon); Colma Canyon 137 Comment
  RSA218031  Salvia spathacea Walter Knight, I. Knight 1965-3-15 1218 San Mateo Colma Canyon. San Bruno Mountain. Comment
  SEINET10581809  Salvia spathacea Lewis S. Rose 1965-4-22 Rose 65028 San Mateo San Bruno Mountain, Colma Canyon open slopes. 61 Comment
  RSA120030  Sambucus callicarpa W. R. Dudley 1950-3-16 s.n. San Mateo Near bridge over Pilancitas Creek, on road to Half-Moon Bay Comment
  JEPS127879  Sambucus nigra subsp. caerulea Adam C. Schneider 2013-5-17 143 San Mateo Crystal Springs Reservoir Comment
  JROH1671  Sambucus nigra subsp. caerulea John H. Thomas 1973-6-15 16853 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
  CAS-BOT-BC236457  Sambucus racemosa subsp. racemosa W. R. Dudley 1894-3-24 s.n. San Mateo Near Pescadero Creek below B. Haywoods, Santa Cruz Mountain Peninsula Comment
  UCSB11444  Sambucus racemosa var. racemosa Olson, Jim 1962-4-17 San Mateo 5 miles southeast of Halfmoon Bay on road to San Mateo 45 Comment
  RSA470980  Sanicula arctopoides Glenn A. Gorelick 1967-2-10 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  RSA184887  Sanicula arctopoides L. S. Rose 1965-3-25 65012 San Mateo San Bruno Mountains, North end. 122 Comment
  SEINET13945107 Image available Sanicula arctopoides C. F. Baker 1902-1 425 San Mateo Crystal Springs Lake. Comment
  UCD127909  Sanicula arctopoides Lewis S. Rose 1965-3-25 65012 San Mateo San Bruno Mountains, north end. 121 Comment
  CAS-BOT-BC223321  Sanicula bipinnatifida George Oberlander 1949-4-17 99 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  RSA15309  Sanicula bipinnatifida C. B. Wolf 1927-4-3 279 San Mateo 1 1/2 miles above east base of La Honda grade, Santa Cruz Mountains. Comment
  JROH338  Sanicula crassicaulis John H. Thomas 1974-5-3 17243 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH340  Sanicula crassicaulis John H. Thomas 1975-6-5 17947 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Dam Comment
  UCR121545  Sanicula crassicaulis George K. Helmkamp, E. A. Helmkamp 1999-6-28 4963 San Mateo Coast Range; Santa Cruz Mtns, Sky Londa; junction of Calif. Hwy 84 and Calif. Hwy 35, 5 mi south of central Redwood City 457 Comment
  JROH347  Sanicula tuberosa H. J. Dengler 1964-3-29 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; in the center of the westernmost enclosure, above the old trail to S.F. Creek Comment
  RSA8352  Satureja douglasii L. S. Rose 1933-6-9 s.n. San Mateo 3 miles W of San Bruno. Comment
  JROH352  Scandix pecten-veneris John H. Thomas 1975-4-18 17787 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA140840  Schinus molle John H. Thomas 1960-6-25 8788 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street. alt. below 25 feet. 8 Comment
  CAS-BOT-BC384630  Schoenoplectus americanus R. D. Hennessey 1964-4-26 71 San Mateo The area in which Pilarcitos Creek empties into the ocean Comment
  CAS-BOT-BC111604  Schoenoplectus californicus George Thomas Oberlander 1949-7-30 322 San Mateo Marsh, San Andreas Lake Comment
  JEPS62104  Scoliopus bigelovii Inez Smith March 1915 San Mateo Hillsboro Comment
  POM169941  Scoliopus bigelovii C. F. Baker 1902-3-18 322 San Mateo Kings Mountain Comment
  POM292613  Scoliopus bigelovii Lyman Benson 1931-2-28 2611 San Mateo Town: Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 183 Comment
  POM51487  Scoliopus bigelovii H. R. Ebright 1922-03 s.n. San Mateo Lake Pilarcitos. Comment
  CAS-BOT-BC519002  Scoliopus bigelovii Elmer I. Applegate 1895-3-9 737 San Mateo Above Woodside Comment
  CAS-BOT-BC519013  Scoliopus bigelovii Lewis S. Rose 1964-2-6 64000 San Mateo Kings Mountain 609 Comment
  RSA0028841  Scoliopus bigelovii D. D. Keck 1932-2-12 1359 San Mateo La Honda Road, east slope of Coast Range above Searsville Lake 305 Comment
  RSA299413  Scoliopus bigelovii Elsa Kraeger 1926-2-21 s.n. San Mateo N of La Honda. Comment
  JROH4128  Scrophularia californica John Hunter Thomas 1977-6-16 18747 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD38739  Scutellaria tuberosa Janet Turner 1933-4-19 3711 San Mateo Emerald Lake Comment
  CAS-BOT-BC59055  Sedum spathulifolium A. D. E. Elmer 1903-6-1 4550 San Mateo Toward San Mateo from Crystal Springs Lake Comment
  CAS-BOT-BC59052  Sedum spathulifolium Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain, below parking lot on the top of the mountain. Comment
  JROH1219  Senecio aronicoides John H. Thomas 1967-5-10 12855 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC363387  Senecio aronicoides Walter Knight; Irja Knight 1965-3-21 966 San Mateo San Bruno Mountain. About 1/4 mi. e. of Brisbane power lines near road on ridge Comment
  RSA0012763  Senecio aronicoides C. F. Baker 1903-4-6 1900 San Mateo San Bruno Hills, San Francisco. [San Mateo] Comment
  SJSU5433  Senecio aronicoides G. I. Tourtlotte 1968-5-5 San Mateo N end Sawyer Camp Rd near Crystal Springs 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
  JROH1226  Senecio vulgaris John H. Thomas 1973-4-14 16558 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC85780  Sequoia sempervirens W. R. Dudley 1897-1-1 s.n. San Mateo Santa Cruz Mountain Peninsula, Butano Creek Comment
  CAS-BOT-BC85783  Sequoia sempervirens unspecified 1901-1-26 s.n. San Mateo Santa Cruz Peninsula, Coal Mine [Canon] Canyon Comment
  LA6407  Sequoia sempervirens David D. Keck; 1932-2-14 1368 San Mateo Santa Cruz Mountains, La Honda road, E-slope of Coast Range above Searsville Lake 300.0 Comment
  POM193078  Sequoia sempervirens W. R. Dudley 1895-10-19 s.n. San Mateo By Summit Spr. Road, Kings Mountain, Santa Cruz Mountain Peninsula Comment
  UCSB11437  Sequoia sempervirens Olson, Jim 1962-4-15 San Mateo 8 miles north of junction with Portola State Park Road on Camp Pomponio Road, 10 miles southwest of La Honda 213 Comment
  CAS-BOT-BC85784  Sequoia sempervirens Atkinson 1901-1-27 s.n. San Mateo Santa Cruz Mountain Peninsula, near Preston's Place, Portola Valley Comment
  UCD92597  Setaria parviflora John Thomas Howell 1957-7-8 32805 San Mateo Holy Cross Cemetary. Comment
  JROH3827  Sherardia arvensis John H. Thomas 1955-5-6 5018 A San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  SBBG83432  Sherardia arvensis B. Bowman 1961-3-30 30 San Mateo corner of Sebastian Drive and Lassuen Court; Burlingame 9 Comment
  POM223278  Sidalcea diploscypha L. S. Rose 1935-6-9 35211 San Mateo Emerald Lake, W. of Redwood City Comment
  SEINET3561109 Image available Sidalcea diploscypha Lewis S. Rose 1933-5-17 33167 San Mateo Redwood City. Comment
  UC676738  Sidalcea malviflora subsp. laciniata Reed C. Rollins 1941-3-22 2949 San Mateo 1 mi n Belmont; n of Belmont Comment
  JEPS67241  Sidalcea malviflora subsp. malviflora W. L. Jepson 1921-4-3 9109 San Mateo canyon near Colma (Colma Canyon); n. San Mateo Co., Colma Canyon Comment
  POM203640  Sidalcea malviflora subsp. malviflora J. T. Howell 1933-4-9 10975 San Mateo 2 miles N. of Pigeon Pt. 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
  JEPS85233  Silene californica Roy E. Buck, Randall A. Morgan 1984-6-17 509 San Mateo ca 6 km sw Redwood City (in triangle of Edgewood Rd., Canada Rd., and Interstate 280, San Francisco Watershed Reserve); San Francisco Watershed Reserve, sw of Redwood City 152 Comment
  SD38220  Silene gallica Edith A. Purer 1933-7-27 5343 San Mateo Pigeon Point. Comment
  CAS-BOT-BC386848  Silene gallica Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC386855  Silene gallica John H. Thomas 1963-5-20 10132 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC386860  Silene gallica W. R. Dudley 1897-1-1 s.n. San Mateo Butano Creek, Big Basin. Comment
  UCD98646  Silene gallica W. A. Harvey; J. M. Tucker 1948-6-28 1696 San Mateo 3 miles north of Pescadero. Comment
  JROH1725  Silene laciniata subsp. californica John H. Thomas 1962-7-15 9911 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC384626  Silene laciniata subsp. californica L. Sigal 1969-7-1 s.n. San Mateo Belmont Comment
  CAS-BOT-BC389198  Silene laciniata subsp. californica Brandegee No date on label s.n. San Mateo Crystal Springs Comment
  CAS-BOT-BC389893  Silene scouleri subsp. scouleri John H. Thomas 1961-5-7 9289 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JEPS59180  Silybum marianum James G. Daly 1934-1 461 San Mateo San Gregorio watershed , San Gregorio watershed (Santa Cruz Mts.) Comment
  CAS-BOT-BC75350  Sisymbrium officinale Reed C. Rollins 1941-2-23 2941 San Mateo Roadside, about 10 miles south of San Francisco. Comment
  RSA133098  Sisyrinchium bellum Donald A. Johansen 1933-5-18 708 San Mateo Hills above Searsville Lake, Stanford University Campus Comment
  UC1206464  Sisyrinchium bellum LeRoy Abrams 1902-4-13 2327 San Mateo Lake San Andreas Comment
  POM291003  Sisyrinchium bellum Lyman Benson 1935-4-27 6421 San Mateo La Honda Road, Santa Cruz Mts, east of Skyline Blvd., San Francisco Bay watershed. 457 Comment
  RSA26886  Sisyrinchium bellum R. C. Rollins 1941-3-22 2948 San Mateo 1 mile north of Belmont Comment
  POM196491  Sisyrinchium californicum Roxana S. Ferris 1920-4-26 1973 San Mateo Near mouth of Arroyo de los Frijoles 30 Comment
  SEINET3561666 Image available Sitanion jubatum Lewis S. Rose 1932-1 32226 San Mateo Redwood City. Comment
  RSA181219  Solanum americanum John H. Thomas 1965-11-26 11453 San Mateo At intersection of Tunitas Creek Road and Lobos Creek cutoff. 122 Comment
  UC73600  Solanum americanum Harley P. Chandler 1901-3-15 814 San Mateo w of Colma Comment
  SJSU7787  Solanum americanum C. A. Staicer 1976-9-25 San Mateo San Francisquito Cr near El Camino Real, Menlo Park 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
  UCD126847  Solanum furcatum John H. Thomas 1961-5-7 9302 San Mateo San Bruno Mountain in northern part of county. 304 Comment
  NY827232  Solanum furcatum P. H. Raven 1950-4-16 1773 San Mateo On the outskirts of Colma. 61 Comment
  RSA202892  Solanum furcatum G. Ledyard Stebbins, E. F. Paddock 1940-9-7 101 San Mateo At Junction of three upper forks of San Pedro Creek, about 100 foot countour level and a mile from the seashore. Comment
  SJSU15425  Solanum physalifolium var. nitidibaccatum Toni Corelli 2011-8-31 719 San Mateo Half Moon Bay east of of Hwy. 1 and south of Higgins Canyon Road 30 Comment
  CAS-BOT-BC154185  Solanum umbelliferum F. Hemphill 1973-4-15 688 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC35922  Solanum umbelliferum Fred Hemphill 1973-4-15 673 San Mateo San Carlos. Chaparral area N of Malabar Rd. and Melendy Dr. 207 Comment
  POM87735  Solanum umbelliferum L. R. Abrams 1902-1-7 2262 San Mateo Kings Mts. Comment
  UC26234  Solanum umbelliferum Alice Eastwood April 1896 San Mateo Crystal Springs Comment
  UC884945  Solanum umbelliferum Lewis S. Rose 1939-2-26 39016 San Mateo Emerald Lake 182 Comment
  UCD23309  Solanum umbelliferum Alan T. Whittemore 1976-5-29 105 San Mateo Intersection of Polyhemus Creek Road and Ticonderoga Street, San Mateo. 140 Comment
  CAS-BOT-BC157432  Solanum umbelliferum J. Penalosa 1963-3-9 2678 San Mateo Slopes southeast of 1314ft. summit 381 Comment
  CAS-BOT-BC353473  Solidago elongata Peter Rubtzoff 1978-9-16 9271 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction. Western part of the area, on slope near fence, San Bruno Mountains. Comment
  CAS-BOT-BC365534  Solidago elongata Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain. East facing slope below parking lot Comment
  CAS-BOT-BC365187  Solidago velutina subsp. californica Phillip C. Wheeler 1965-8-16 s.n. San Mateo San Bruno Mountain. Lower April Brook Comment
  CAS-BOT-BC365189  Solidago velutina subsp. californica Roxana S. Ferris 1920-9-3 2051 San Mateo Santa Cruz Mountain Peninsula. Near the upper Mud Lake, Coal Mine Ridge Comment
  UC711942  Solidago velutina subsp. californica R. Bacigalupi 1941-10-30 2730 San Mateo along Crystal Springs-Woodside Road 1/2 mi s of junction with Belmont Road Comment
  CAS-BOT-BC365930  Soliva sessilis Walter Knight; Irja Knight 1967-5-16 s.n. San Mateo San Bruno Mountain. Randolph Ave., South San Francisco Comment
  JROH1248  Soliva sessilis John Hunter Thomas 1984-4-12 23292 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1254  Soliva sessilis John Hunter Thomas 1992-5-5 25212 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC374492  Sonchus asper John H. Thomas 1971-5-2 15869 B San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  CAS-BOT-BC374703  Sonchus oleraceus Josephine D. Randall 1907-4-27 99 San Mateo Santa Cruz Peninsula. Kings Mt. Comment
  CAS-BOT-BC374705  Sonchus oleraceus Philip Wheeler 1965-6-16 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  RSA177000  Sparganium erectum subsp. stoloniferum John H. Thomas 1964-6-3 10412 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  RSA407381  Sparganium erectum subsp. stoloniferum Lyman Benson 1931-5-29 2811 San Mateo Santa Cruz Mt. range, Lake Searsville River. 244 Comment
  UCD92988  Spartina foliosa Malcolm A. Nobs; S. Galen Smith 1949-8-27 1622 San Mateo E of Redwood City. Comment
  SEINET7062814  Spergula arvensis subsp. arvensis A. G. Vestal 1937-6-15 s.n. San Mateo Pebble Beach west of Pescadero. UTM Zone 10, 551765mE, 4121313mN. (WGS84/NAD83). 0 Comment
  JROH1761  Spergularia John Hunter Thomas 1983-4-3 21309 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  JROH1763  Spergularia John Hunter Thomas 1983-5-23 22244 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road near shack side and low-flow crossing Comment
  CAS-BOT-BC390209  Spergularia bocconi Alice Eastwood 1921-7-17 s.n. San Mateo Grenada Comment
  UCSB1896  Spergularia macrotheca Walker, Clifford 1954-4-20 San Mateo 50 yds. from ocean, 1 mi. S of Half Moon Bay Comment
  CAS-BOT-BC390453  Spergularia macrotheca var. macrotheca J. H. Thomas 1954-5-28 4245 San Mateo Guadalupe Valley, about 2 miles south of San Francisco - San Mateo County line 30 Comment
  CAS-BOT-BC390470  Spergularia macrotheca var. macrotheca W. S. Atkinson 1901-7-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Pescadero Creek Comment
  CAS-BOT-BC390917  Spergularia marina C. F. Baker 1902-10-20 1859 San Mateo Searsville Comment
  JROH1753  Spergularia rubra John Rawlings 2012-1-6 1103 San Mateo Jasper Ridge Biological Preserve, Stanford University. Rd. F in chert-derived soils south of serpentine contact. Also observed nearby in Road F in serpentine 195 Comment
  UCR160927  Spergularia rubra George K. Helmkamp, E. A. Helmkamp 2001-6-2 6793 San Mateo Central Coast, Purissima Creek Rd., 0.9 mi from Calif. Hwy 1(junction about 4 mi south of Half Moon Bay) 91 Comment
  CAS-BOT-BC390700  Spergularia rubra John Thomas Howell 1955-5-5 s.n. San Mateo 700 block of Bromfield Road, Burlingame Comment
  SD39424  Spiranthes romanzoffiana Edith A. Purer 1939-7-1 7928 C San Mateo Wet spot, snd dunes, Ano Nuevo Point. Comment
  CDA9322  Stachys ajugoides M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 867 San Mateo Pacifica: San Pedro Valley County Park, along Brooks Creek Trail. 148 Comment
  SJSU15220  Stachys ajugoides Toni Corelli 2011-5-23 702 San Mateo Bean Hollow State Beach, Arroyo de los Frijoles Trail. Coastal bluff top south of Bean Hollow Beach 10 Comment
  UCD164462  Stachys ajugoides Peter Rubtzoff 1977-6-21 9067 San Mateo San Bruno Mountain. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon near upper rim. Comment
  UC702529  Stachys ajugoides var. ajugoides L. S. Rose 1941-10-24 41469 San Mateo Belmont 3 Comment
  JROH2899  Stachys bullata John H. Thomas 1971-5-30 15977 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UC1537555  Stachys bullata Gordon H. True Jr. 1936-6-14 503 San Mateo canyon s Saledo Beach (near coast) 152 Comment
  UC25935  Stachys bullata J. Burtt Davy Jun 21 1893-Jun 23 1893 1141 San Mateo Pilarcitos Lake and Canyon Comment
  UC32569  Stachys bullata W. C. Blasdale 1893-6-23 San Mateo Pilarcitos Comment
  JROH2900  Stachys bullata Herb Dengler 1972-5-28 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; above (W.) of junction of S.F. and Bear Creeks Comment
  JROH2907  Stachys bullata John Hunter Thomas 1984-5-27 23407 San Mateo Jasper Ridge Biological Preserve, Stanford University; beyond redwood grove along San Francisquito Creek, about 300 yards to the east Comment
  RSA0076206  Stachys bullata Lyman Benson 2804 San Mateo San Francisquito Creek, San Mateo-Santa Clara County line. Stanford University, bed of San Francisquito Creek. 30 Comment
  RSA131278  Stachys chamissonis Roxana S. Ferris 1921-5-29 2180 San Mateo Lagoon head of New Years Pt. Comment
Read comments Feb 9 2022
  NY415785  Stachys gracilenta A. A. Heller 1907-5-28 8574 San Mateo Above Crystal Springs on the Half Moon Bay road Comment
  JEPS121450  Stachys rigida subsp. quercetorum Adam C. Schneider 2013-5-17 125 San Mateo Crystal Springs Reservoir Comment
  RSA785892  Stachys rigida subsp. quercetorum Peter Rubtzoff 1977-6-21 9063 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon, near upper rim. Comment
  JEPS127878  Stachys rigida var. quercetorum Adam C. Schneider with C. Matt Guilliams and Will Freyman 2013-6-24 298 San Mateo Crystal Springs Reservoir Comment
  JROH2892  Stachys rigida var. quercetorum John H. Thomas 1967-5-12 12884 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2894  Stachys rigida var. quercetorum John Hunter Thomas 1978-4-20 19089 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC374794  Stebbinsoseris heterocarpa K. L. Chambers 1952-5-24 418 San Mateo 1.2 mi. towards Woodside from Skyline junction of Woodside-La Honda road, (1.2 mi. e. of Skyline Blvd.). [Locality info from collection label and voucher label combined.] Comment
  JEPS51122  Stellaria media W. L. Jepson 1920-3-14 8427 San Mateo Burlingame Comment
  JROH1792  Stellaria nitens Toni Corelli 2006-3-22 309 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 5, lost serpentine trail 121 Comment
  JROH5735  Stellaria nitens John Rawlings 2015-4-5 1655 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near base of scree slope in old quarry off of Trail 12 111 Comment
  CAS-BOT-BC375912  Stephanomeria virgata Margaret A. Barry 1937-7-17 200 San Mateo Coal Mine Ridge Comment
  JROH5331  Stipa pulchra Duncan M. Porter 1960-4-22 664 San Mateo Jasper Ridge Biological Preserve, Stanford University. Meadow near crest of N-facing slope above Webb Ranch. Comment
  JROH5333  Stipa pulchra John H. Thomas 1963-3-20 10023 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC423014  Stylomecon heterophylla Walter Knight; Irja Knight 1965-4-25 1072 San Mateo San Bruno Mountain. Owl's Canyon Comment
  SEINET12265437  Symphoricarpos albus J. I. McMurphy 1906-1 75 San Mateo Santa Cruz Peninsula, Woodside, Santa Cruz Mts 152 Comment
  CAS-BOT-BC271601  Symphoricarpos albus var. laevigatus Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo East facing slope below parking lot, San Bruno Mountain Comment
  CAS-BOT-BC271641  Symphoricarpos albus var. laevigatus J. I. McMurphy 1906-5-8 75 San Mateo Woodside, Santa Cruz Mts., Santa Cruz Mountain Peninsula 152 Comment
  UC1119937  Symphoricarpos albus var. laevigatus G. E. Sindel 1935-8-2 320 San Mateo Harrington Creek; Santa Cruz Quad. 274 Comment
  CAS-BOT-BC344894  Symphyotrichum chilense Peter Rubtzoff 1974-12-17 7944 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  SD30757  Symphyotrichum chilense Edith A. Purer 1933-8-25 5521 San Mateo Spring Valley, along roadside Comment
  CAS-BOT-BC99051  Symphyotrichum chilense Lewis S. Rose 1955-8-29 54112 San Mateo Tunitas 30 Comment
  CAS-BOT-BC99092  Symphyotrichum chilense W. R. Dudley 1895-9-21 s.n. San Mateo Menlo Park - Santa Cruz Peninsula Comment
  CAS-BOT-BC99095  Symphyotrichum chilense W. R. Dudley 1897-10-10 s.n. San Mateo Near Pilar Point Comment
  SJSU11816  Symphyotrichum subspicatum R. L. Sears 1968-5-18 73 San Mateo by Higway One, 3 miles N of Pescadero Comment
  UC1927817  Symphyotrichum subspicatum David Keil 1988-11-19 21201 San Mateo Highway 1, south of Half Moon Bay Comment
  CAS-BOT-BC376710  Tanacetum bipinnatum Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  SBBG40538  Tanacetum camphoratum B. Sherfey, A. L. Menzies 1963-9-14 San Mateo San Bruno Hills Comment
  CAS-BOT-BC376870  Taraxacum erythrospermum Walter Knight; Irja Knight 1965-3-21 926 San Mateo San Bruno Mountain. On Power Line Ridge Comment
  UCR256289  Taraxacum officinale Peter Rubtzoff 1976-5-22 8553 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  CHSC1159  Taraxia ovata M. Harless 1930-5-2 San Mateo Moss Beach. 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
  UC203041  Tellima grandiflora A. D. E. Elmer Jun 1903 4702 San Mateo Pescadero Comment
  CAS-BOT-BC447474  Tellima grandiflora Philip C. Wheeler 1965-5-12 s.n. San Mateo South canyon below western power lines Comment
  UCD39286  Tetragonia expansa B. Crampton 1962-6-11 6517 San Mateo Pacifica, Rockaway Beach, State Hwy. 1. Comment
  UC727238  Thalictrum fendleri var. polycarpum W. R. Dudley 1904-4-10 San Mateo Alpine Rd Santa Cruz Mountain Peninsula, Black Mt. Comment
  CAS-BOT-BC399845  Thalictrum polycarpum W. R. Dudley 1900-3-18 s.n. San Mateo Santa Cruz Peninsula. Northwest of San Andreas Reservoir Comment
  POM16722  Thermopsis californica var. californica A. D. E. Elmer 1903-05 4824 San Mateo Crystal Springs Lake. Comment
  UC74947  Thermopsis californica var. californica C. F. Baker 1902-5-1 685 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC66658  Thysanocarpus curvipes John H. Thomas 1968-4-13 14290 A San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JROH1619  Thysanocarpus curvipes John Hunter Thomas 1990-4-7 24801 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC66683  Thysanocarpus curvipes Carl B. Wolf 1929-5-17 3716 San Mateo 1 mile west of Skyline Boulevard on Alpine Road. 304 Comment
  JROH394  Torilis nodosa John Hunter Thomas 1986-5-6 24018 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH383  Torilis nodosa John Hunter Thomas 1980-5-13 19966 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC81494  Torreya californica W. R. D. 1895-3-26 s.n. San Mateo La Honda Comment
  JROH4761  Toxicoscordion fremontii John Hunter Thomas 1982-2-19 20800 San Mateo Jasper Ridge Biological Preserve, Stanford University. Chaparral near Goya Gate Comment
  RSA79060  Trientalis latifolia E. K. Balls, Lee W. Lenz 1952-5-6 17097 San Mateo Old La Honda Road to Palo Alto, Ne from Hwy5. 305 Comment
  SEINET11974143  Trientalis latifolia Unknown 1932-1 8974 San Mateo Los Trancos Woods Comment
  UCD107567  Trifolium albopurpureum Michael A. Vincent; Ethan H. Freid 1998-4-9 8202 San Mateo East side of Canada Road, ca. 200 yards southeast of its junction with Edgewood Road, just southwest of I-280, at Filoli Center. Comment
  JROH2241  Trifolium barbigerum John H. Thomas 1974-4-25 17202 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge Comment
  JROH2243  Trifolium barbigerum John Hunter Thomas 1986-4-18 23957 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET881659 Image available Trifolium bicephalum A. D. E. Elmer 1903-1 4812 San Mateo San Pedro. Comment
  RSA633305  Trifolium bifidum Michael A. Vincent, Ethan H. Freid, Karl Vincent 1998-4-9 8201 San Mateo Along east side of Canada Road, ca. 200 yards southeast of its junction with Edgewood Road, just southwest of I-280, at Filoli Center. Comment
  UC137795  Trifolium bifidum var. bifidum C. F. Baker 1902-5-4 743 San Mateo Woodside Comment
  UC203043  Trifolium bifidum var. bifidum A. D. E. Elmer May, 1903 4714 San Mateo Portola Comment
  RSA184981  Trifolium bifidum var. decipiens L. S. Rose 1966-5-2 66035 San Mateo Emerald Lake, west of Redwood City. 91 Comment
  SJSU15445  Trifolium bifidum var. decipiens Toni Corelli 2010-5-13 604 San Mateo Pedro Point Headlands, Pacifica, CA, along South Ridge Trail 180 Comment
  UC725794  Trifolium bifidum var. decipiens A. A. Heller 1907-5-23 8559 San Mateo near San Mateo (on Half Moon Bay Rd) Comment
  UC630933  Trifolium depauperatum var. depauperatum P. B. Kennedy 1928-5-2 10098 San Mateo e Daly city (hills) Comment
  JROH2284  Trifolium fucatum John H. Thomas 1955-5-6 4987 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent grassy slopes Comment
  POM18836  Trifolium fucatum var. fucatum C. F. Baker 1902-5-1 693 San Mateo Belmont Comment
  POM223326  Trifolium fucatum var. fucatum L. S. Rose 1935-5-4 35152 San Mateo Burlingame. Comment
  JROH2317  Trifolium gracilentum John H. Thomas 1971-4-24 15776 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA27958  Trifolium gracilentum T. C. Fuller 1967-6-13 15941 San Mateo Half Moon Bay Harbor, north edge of the town of Half Moon Bay. 0 Comment
  SJSU659  Trifolium grayi J. E. Hagerty 1950-5-20 San Mateo Pescadero Comment
  JROH2346  Trifolium subterraneum John Hunter Thomas 1980-4-10 19873 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2360  Trifolium subterraneum John Hunter Thomas 1987-5-7 24264 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2367  Trifolium subterraneum John Hunter Thomas 1990-4-7 24802 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UC2048924  Trifolium suffocatum Neal Kramer 2016-4-17 2169 b San Mateo Bean Hollow State Beach trail north of parking area. Comment
  JROH2385  Trifolium variegatum John H. Thomas 1975-4-19 17803 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET4206967  Trifolium variegatum Lewis S. Rose 1953-4-5 53011 San Mateo Redwood City, CA, along Bayshore Highway.; 0 3 Comment
  UCSC004602  Trifolium vesiculosum Randall Morgan 2004-4-16 4239 San Mateo Dejernosi property NW of Skylanda Comment
  JROH2416  Trifolium willdenovii John Hunter Thomas 1991-5-2 25022 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM278621  Trifolium willdenovii Lyman D. Benson 1935-5-5 6526 San Mateo Lake Searsville. Stanford University. Santa Cruz Mtn range. S.F. Bay watershed. 152 Comment
  UC80455  Trifolium wormskioldii Katharine Brandegee June 1905 San Mateo Moss Beach 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
  JROH4725  Trillium chloropetalum John H. Thomas 1972-4-1 16047 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC142121  Trillium chloropetalum Michener and Bioletti March, 1893 San Mateo near Colma Comment
  POM170078  Trillium chloropetalum var. chloropetalum C. F. Baker 1902-3-30 431 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC521007  Trillium chloropetalum var. chloropetalum R. Bacigalupi 1922-3-1 s. n. San Mateo Jones Ranch, Pescadero Creek Comment
  CAS-BOT-BC521061  Trillium chloropetalum var. giganteum W. R. Dudley 1894-3-26 s.n. San Mateo Kings Mt. Comment
  CAS-BOT-BC133429  Trillium ovatum L. R. Abrams 1898-3-5 s.n. San Mateo Kings Mt. Comment
  CAS-BOT-BC133444  Trillium ovatum C. F. Leithold 1896-3-28 s.n. San Mateo Near Kings Mt. Comment
  UC202804  Trillium ovatum A. D. E. Elmer April, 1903 4752 San Mateo Portola Comment
  SBBG51419  Trillium ovatum J. Doty 1969-3-26 601 San Mateo St Hwy 34, 6 mi N of its jct with St Hwy 38 Comment
  JROH1648  Triodanis biflora H. L. Mason 1921-6-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC238558  Triphysaria floribunda Alice Eastwood 1915-5-6 s.n. San Mateo Burlingame Comment
  CAS-BOT-BC238566  Triphysaria floribunda David D. Keck 1932-5-6 1471 San Mateo One mile south of San Mateo, on highway US 101 Comment
  CAS-BOT-BC238576  Triphysaria floribunda Roxana S. Ferris 1921-4-7 2134 San Mateo The Santa Cruz Mountain Peninsula. San Bruno Mt. 60 Comment
  UC27202  Triphysaria floribunda J. Burtt Davy 1895-4-20 1028 San Mateo Millbrae Comment
  JROH4146  Triphysaria pusilla John Hunter Thomas 1989-5-5 24660 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC419721  Triphysaria versicolor subsp. versicolor Mrs. H. P. Bracelin 1930-10-26 132 San Mateo Ocean Rd between Half Moon Bay and Santa Cruz near Pidgeon Point; Ocean Rd btw Half Moon Bay and Santa Cruz Comment
  UC635229  Triteleia hyacinthina Margaret Stason 1924-5-18 San Mateo Jasper Ridge Sandhill Road Comment
Read comments Sep 19 2011
  CAS-BOT-BC526103  Triteleia ixioides subsp. ixioides C. F. Leithold 1893-5-27 s.n. San Mateo Santa Cruz Peninsula, road between Woodside and Kings Mountain Comment
  JROH4751  Triteleia laxa John H. Thomas 1976-5-26 18157 a San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4753  Triteleia laxa John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA6306  Triteleia laxa David D. Keck 1932-5-6 1466 San Mateo Belmont. Comment
  CAS-BOT-BC526363  Triteleia laxa John H. Thomas 1971-5-2 15847 San Mateo Near intersection of Canada and Edgewater Roads, about 4 miles SW of center of Redwood City 304 Comment
  POM276973  Triteleia laxa Lyman Benson 1930-4-17 2070 San Mateo Stanford University 91 Comment
  JROH1626  Tropidocarpum gracile John H. Thomas 1977-4-18 18532 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC74058  Turritis glabra Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain. Above Hillside Boulevard. South San Francisco. Comment
  CAS-BOT-BC539287  Typha angustifolia John Rawlings; Ken Hickman 2016-7-21 1903 San Mateo Caltrans right-of-way upslope from Hwy 92 W onramp to Hwy 280 N; downslope from San Francisco Watershed fenceline 122 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
  SEINET7951747 Image available Typha angustifolia I. L. Wiggins 1929-7-4 3803 San Mateo near Pescadero Beach Comment
  JROH4219  Ulmus minor John Hunter Thomas 1977-6-16 18804 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC750643  Umbellularia californica Lewis S. Rose 1946-3-9 46017 San Mateo San Mateo Canyon 91 Comment
  JROH1291  Uropappus lindleyi John Hunter Thomas 1981-4-27 20509 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC403971  Urtica dioica subsp. gracilis Roxana S. Ferris 1920-4-26 1965 San Mateo Santa Cruz Mountain Peninsula. Near mouth of canyon of Pescadero Creek 243 Comment
  JROH4236  Urtica dioica subsp. holosericea John H. Thomas 1964-10-2 10512 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam along stream Comment
  CAS-BOT-BC404024  Urtica dioica subsp. holosericea George Oberlander 1950-4-16 696 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon Comment
  UC1302442  Vaccinium cespitosum Robert F. Thorne and P. Everett 1963-6-9 32214 San Mateo near TV tower on San Bruno Mountain; Kamchatka Point 335 Comment
  CAS-BOT-BC199352  Vaccinium ovatum Rose M. Higley 1907-4-27 141 San Mateo La Honda Comment
  CAS-BOT-BC199367  Vaccinium ovatum Josephine D. Randall 1907-7-28 140 San Mateo Iversons near Pescadero Creek Comment
  CAS-BOT-BC199369  Vaccinium ovatum J. H. Thomas 1949-3-31 203 San Mateo King's [Kings] Mountain Road Comment
  HSC98190  Vaccinium ovatum L. S. Rose 1969-3-27 69007 San Mateo Kings Mountain Road, 4 mi. W of Woodside 305 Comment
  RSA471170  Vaccinium ovatum L. H. Jones 1909-3-3 s.n. San Mateo Summit of King's Mountain, Stanford University. 732 Comment
Read comments Sep 22 2011
  CAS-BOT-BC199463  Vaccinium parvifolium L. R. Abrams 1909-8-1 4247 San Mateo Between La Honda & Pescadero Comment
  RSA112362  Vaccinium parvifolium W. R. Dudley 1895-6-6 s.n. San Mateo Out trail from Iverson's Pescadero Creek to top Butano Ridge. Comment
  SEINET3293271 Image available Vancouveria hexandra Lewis S. Rose 1932-5-24 32269 San Mateo Kings mountain, forest Comment
  HSC24036  Verbena lasiostachys Mary Katherine Wicksten 1971-7-12 168 San Mateo Huddart Park, near Archery Flat, along King's Mtn. Rd. Comment
  JROH4259  Verbena lasiostachys var. lasiostachys John H. Thomas 1971-5-30 15975 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4262  Verbena lasiostachys var. lasiostachys John Hunter Thomas 1977-6-16 18774 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4271  Verbena lasiostachys var. lasiostachys John Hunter Thomas 1991-6-9 25069 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4273  Verbena lasiostachys var. scabrida John H. Thomas 1968-5-22 14463 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of lake Comment
  CAS-BOT-BC157690  Veronica americana Peter Rubtzoff 1978-7-8 9231 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JROH4150  Veronica arvensis John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2429  Vicia benghalensis John Hunter Thomas 1978-5-23 19227 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA254231  Vicia dasycarpa Robert A. Norris 1975-3-31 2290 San Mateo Near Crocker Avenue, San Bruno Mountains. Comment
  CDA33997  Vicia gigantea D. G. Kelch 2011-3-13 11 .054 San Mateo Near Half Moon Bay along Capistrano Creek. 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
  SJSU1013  Vicia gigantea J. E. Hagerty 1950-5-20 San Mateo Pescadero Beach Comment
  SJSU2299  Vicia gigantea C. W. Sharsmith 1950-4-16 6628 San Mateo near Pescadero Point, near Pescadero Comment
  SFV4291  Vicia sativa J. Turner, F. M. Ball 1962-7-7 s. n. San Mateo Highway 1, almost 10 miles north of Santa Cruz County line Open roadside. 30 Comment
  JROH2434  Vicia sativa subsp. nigra John H. Thomas 1971-4-3 15744 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2447  Vicia sativa subsp. sativa John Hunter Thomas 1981-4-30 20516 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD108942  Vicia sativa subsp. sativa Malcolm A. Nobs; S. Galen Smith 1949-8-25 1547 San Mateo Sharp Park. Comment
  JROH5827  Vicia tetrasperma Ann Lambrecht 2012-6-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; ~ 50 meters north of Preserve main gate between roads H and C (Sector 29 E1 or E2) 118 Comment
  POM257512  Vicia villosa Carl B. Wolf 1929-5-27 3737 San Mateo Los Trancos Creek back of Stanford University. Comment
  JROH5883  Vinca major J. C. Gaither Jr. 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Whiskey Hill Gate. Comment
  CAS-BOT-BC264046  Viola adunca Alice Eastwood 1914-3-12 3754 San Mateo San Bruno Hills Comment
  CAS-BOT-BC264050  Viola adunca Roxana S. Ferris 1920-4-26 1978 San Mateo Road above Lagoon and mouth of Arroyo de Los Frijoles 30 Comment
  RSA15353  Viola adunca Carl B. Wolf 1927-1-29 168 San Mateo Pebble Beach, coast south of Pescadero. Comment
  UC483497  Viola adunca Ira L. Wiggins 1931-2-21 5091 a San Mateo Pescadero Beach Comment
  UC566140  Viola adunca A. E. Wieslander 1935-2-3 507 San Mateo 1/2 mi se of Pigeon Point 30 Comment
  UC1206455  Viola glabella Brannan and Kellogg 1870-5-31 San Mateo San Gregorio Comment
  CAS-BOT-BC536573  Viola glabella Charles Piper Smith 1908-3-28 1369 San Mateo Woodside--Kings Mt. road Comment
  RSA10996  Viola glabella Carl B. Wolf 1928-3-14 1533 San Mateo La Honda Grade, Santa Cruz Mountains. Comment
  CHSC13860  Viola ocellata S. Villard 1974-4-28 2 San Mateo Kings Mountain Rd., Woodside. 1 mi. W of Mounted Patrol Grounds on both sides of the rd. 152 Comment
  RSA130599  Viola ocellata Josephine Randall 1908-3-28 s.n. San Mateo Kings Mt Road. Santa Cruz Peninsula. Comment
  RSA130982  Viola ocellata Helen M. Edwards 1917-3-8 s.n. San Mateo Woodside. Comment
  RSA101046  Viola ocellata G. Oberlander 1949-7-30 353 San Mateo On Cahill Ridge, San Francisco Watershed Reserve. Comment
  SEINET215133 Image available Viola ocellata F. Martin, M Martin 1960-3-26 54 San Mateo YMCA Camp 10 miles east of Pescadero 152 Comment
  UCD166151  Viola purpurea subsp. quercetorum Jack Major; M. Forde and S. Bamberg 1962-4-3 735 San Mateo Above Finney Creek. (Exact location unknown. Coordinates estimated by label maker). 121 Comment
  POM128418  Viola sempervirens L. R. Abrams 1902-6-7 2260 San Mateo King's Mountain. Comment
  RSA130699  Viola sempervirens A. M. Patterson 1907-4-27 s.n. San Mateo Kings Mt. Santa Cruz Peninsula. Comment
  UC581490  Viola sempervirens Lucile Roush March 1928 San Mateo Butano Creek; Santa Cruz Mountains, Butano Creek Comment
  UC74940  Viola sempervirens C. F. Baker 1902-1-15 232 San Mateo w side of King's Mountain; The Pacific Slope, King's Mountain Comment
  CAS-BOT-BC199857  Vulpia bromoides Javier Penalosa 1963-3-9 2694 San Mateo Ravine 1/2 mi. east of 1314 ft. summit 304 Comment
  RSA27482  Vulpia microstachys I. L. Wiggins 1941-4-17 9720 San Mateo Roadside near junction of road to California Sanitarium and Woodside-Half Moon Bay road. Comment
  RSA176602  Vulpia microstachys var. ciliata John H. Thomas 1964-4-5 10296 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Toward Searsville end of ridge. 152 Comment
  SD99481  Vulpia myuros Ira L. Wiggins 1975-4-12 22138 San Mateo NE side of Southern Pacific right-of-way, between San Francisquito Creek and Ravenswood Avenue, Menlo Park Comment
  JEPS122438  Wahlenbergia marginata Aaron Schusteff 2015-5-31 1 San Mateo San Bruno Mountain, 0.5 miles west of county park entrance along south (eastbound) edge of Guadalupe Canyon Parkway. Comment
Read comments Jan 8 2021
  CAS-BOT-BC128728  Whipplea modesta W. R. Dudley 1894-7-7 s.n. San Mateo Bear Gulch - Santa Cruz Peninsula Comment
  CAS-BOT-BC128733  Whipplea modesta Le Roy Abrams 1901-5-1 1554 San Mateo Searsville - Bear Gulch Comment
  SEINET12221301  Whipplea modesta Unknown 1932-1 9147