Search Results — 2000 specimen records retrieved (1351 records with coordinates)
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Results for search: County=SAN MATEO; Source=All;   

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

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC233753  Abronia umbellata L. R. Abrams 1909-8-2 4276 San Mateo Pebble Beach Hotel, Pescadero, Santa Cruz Peninsula Comment
  JROH1981  Acacia John Hunter Thomas 1983-6-29 22693 San Mateo Jasper Ridge Biological Preserve, Stanford University. Low-flow crossing of San Francisquito Creek Comment
  CAS-BOT-BC451116  Acaena pinnatifida var. californica A. D. E. Elmer 1903-4-1 4823 San Mateo San Bruno Hills Comment
  CAS-BOT-BC451117  Acaena pinnatifida var. californica Le Roy Abrams 1901-5-1 1622 San Mateo Colma Comment
  CAS-BOT-BC451120  Acaena pinnatifida var. californica W. R. Dudley 1901-5-11 s.n. San Mateo Near Colma; Santa Cruz Peninsula Comment
  CAS-BOT-BC451121  Acaena pinnatifida var. californica W. R. Dudley 1900-3-18 s.n. San Mateo Near head of San Andreas Reservoir; Santa Cruz Peninsula Comment
  CAS-BOT-BC451126  Acaena pinnatifida var. californica Elizabeth McClintock 1965-3-14 s.n. San Mateo South Power Line Ridge; San Bruno Mountains Comment
  CAS-BOT-BC451127  Acaena pinnatifida var. californica Elizabeth McClintock 1965-3-28 s.n. San Mateo At Flower Garden adjacent to April Brook; San Bruno Mountains Comment
  RSA171123  Acaena pinnatifida var. californica Robert F. Thorne, Percy C. Everett 1963-6-9 32233 San Mateo On top of San Bruno Mountain on Kamchatka Point near the TV tower. 335 Comment
  RSA18356  Acaena pinnatifida var. californica Carl B. Wolf 1929-5-25 3732 San Mateo N of Pigeon Pt, San Mateo Comment
  CAS-BOT-BC219599  Acanthomintha duttonii A. D. E. Elmer 1903-5-1 4538 San Mateo Crystal Springs Lake Comment
  UC1397619  Acanthomintha duttonii H. Dutton and Miss H. Walker May 26 1915-May 29 1915 321 San Mateo near Menlo Golf Club Comment
  RSA18365  Acanthomintha obovata subsp. duttonii Carl B. Wolf 1929-5-24 3723 San Mateo upper Emeral Lake, 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-BC333290  Acer macrophyllum A. D. E. Elmer 1903-5-1 4509 San Mateo Portola Comment
  CAS-BOT-BC333291  Acer macrophyllum A. D. E. Elmer 1903-5-1 4509 San Mateo Portola Comment
  CAS-BOT-BC333297  Acer macrophyllum Robert Setzer 1969-3-30 2140 San Mateo Crystal Springs Road 60 Comment
  JROH154  Acer macrophyllum John H. Thomas 1969-4-12 14882 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grassy area below dam, near stream. 88 Comment
  JROH158  Acer macrophyllum John H. Thomas 1975-6-5 17948 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Searsville Dam 91 Comment
  RSA131268  Acer macrophyllum Josephine Randall 1906-03 s.n. San Mateo San Francisquito Creek near Stanford University Comment
Read comments
Sep 18 2013
  RSA70706  Acer macrophyllum L. S. Rose 1950-4-1 50047 San Mateo San Mateo Canyon Comment
  JROH169  Acer negundo John Hunter Thomas 1978-7-8 19258 San Mateo Jasper Ridge Biological Preserve, Stanford University 85 Comment
  UCD117104  Acer negundo R. E. Dengler 1960-4-20 17 San Mateo near Corte de Madera Creek, 0.5 mile from its drainage into Searseville Lake, Jasper Ridge, Stanford Biological Reserve. 375 Comment
  CAS-BOT-BC336918  Acer negundo var. californicum Ira L. Wiggins 1925-4-11 1633 San Mateo Hillside across from Schroder's. One and one half miles about Stanford University. Comment
  CAS-BOT-BC21553  Achillea millefolium Walter Knight; Irja Knight 1965-4-25 1074 San Mateo San Bruno Mountain. Owl's Canyon. Comment
  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-BC21625  Achillea millefolium George Oberlander 1949-5-21 157 San Mateo Sawyer Ridge Comment
  JROH443  Achillea millefolium John H. Thomas 1973-6-10 16823 San Mateo Jasper Ridge Biological Preserve, Stanford University 190 Comment
  JROH444  Achillea millefolium John H. Thomas 1975-6-5 17943 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack 154 Comment
  JROH448  Achillea millefolium John Hunter Thomas 1981-4-23 20489 San Mateo Jasper Ridge Biological Preserve, Stanford University 130 Comment
  JROH454  Achillea millefolium John Hunter Thomas 1989-5-9 24703 San Mateo Jasper Ridge Biological Preserve, Stanford University 180 Comment
  UCSB22461  Achillea millefolium 1964-3-24 San Mateo About 8/10 of a mile off Skyline Blvd. along Sawyer Camp Road, the entrance off Millbrae Ave., around Crystal Spring Lake 106 Comment
Read comments
Sep 9 2011
  CAS-BOT-BC28769  Achillea millefolium Saichi Kawahara 1968-6-15 425 San Mateo Pescadero Beach, 150 yards south of mouth of Pescadero Creek, Highway 1. 4 Comment
  JROH458  Achyrachaena mollis John H. Thomas 1961-4-8 9071 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2057  Acmispon americanus var. americanus D. E. Breedlove 1971-5-31 19343 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH2077  Acmispon strigosus D. D. Davis 1903-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; north slope, Searsville Ridge Comment
  JROH2111  Acmispon strigosus John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15953  Acmispon wrangelianus John Rawlings, Ken Hickman 2016-5-26 1830 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
  SEINET5537616  Aconitum columbianum H. S. Gentry 1931-1 76 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  JROH3399  Actaea rubra Shaun Donovan 1972-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Redwood area along San Francisquito Creek Comment
  CAS-BOT-BC391682  Actaea rubra Mrs. E. C. Sutliffe 1933-9-1 s.n. San Mateo Unspecified Comment
  RSA18493  Actaea rubra subsp. arguta Carl B. Wolf 1927-7-14 627 San Mateo Summit of La Honda Grade Comment
  POM56205  Adenocaulon bicolor A. D. E. Elmer 1903-06 s.n. San Mateo Pescadero Creek Comment
  JROH87  Adiantum aleuticum John Hunter Thomas 1979-6-12 19591 San Mateo Jasper Ridge Biological Preserve, Stanford University. West side of dam, near bottom Comment
  UC42051  Adiantum aleuticum F. P. McLean 1873-1 San Mateo Pescadero Comment
  SEINET10966201  Adiantum aleuticum Mary Susan Taylor 1978-8-30 Taylor 1864 San Mateo Comment
  UCSB23606  Adiantum aleuticum Masero, Ann 1967-3-21 San Mateo Adjacent to Butano Creek in Butano Canyon, 3.1 mi E of junction of Cloverdale Road and Canyon Road 91 Comment
  RSA0091004  Aeonium simsii Dean Wm. Taylor, Alison E. L. Colwell 2005-5-10 19306 San Mateo Pacifica, sea bluffs between Shelter Cove and Pacifica State Beach. 16 Comment
  RSA131274  Aesculus californica Josephine Randall 1907-7-24 349 San Mateo Crystal Springs Road. Santa Cruz Peninsula. Comment
  CAS-BOT-BC29526  Agoseris apargioides W. R. Dudley 1896-11-15 s.n. San Mateo Near shore, Spanishtown Comment
  UC202773  Agoseris grandiflora var. grandiflora A. D. E. Elmer 1903-4-1 4490 San Mateo Crystal Springs Lake Crystal Springs Lake Comment
  RSA18312  Agoseris heterophylla var. heterophylla C. B. Wolf 1927-7-14 599 San Mateo Summit of Kings Mountain Rd. Comment
  CAS-BOT-BC15237  Agoseris hirsuta George Oberlander 1950-6-3 1023 -A San Mateo near San Andreas Lake, San Francisco Watershed Reserve Comment
  CAS-BOT-BC15245  Agoseris hirsuta Reed Clark Rollins 1942-4-30 3021 San Mateo San Bruno Hills, 1 mile south of Daly City Comment
  UC29336  Agoseris hirsuta Michener and Bioletti 1892-5-1 San Mateo Comment
  JROH4774  Agrostis avenacea John Hunter Thomas 1982-6-7 21032 San Mateo Jasper Ridge Biological Preserve, Stanford University 108 Comment
  JROH4776  Agrostis avenacea John Hunter Thomas 1982-11-6 21211 San Mateo Jasper Ridge Biological Preserve, Stanford University; old bathing beach, edge of Searsville Lake 113 Comment
  RSA128659  Agrostis avenacea P. H. Raven 1950-6-2 2272 San Mateo On the stand of San Andreas Lake. Comment
  UCR198062  Agrostis californica Beecher Crampton 1962-6-11 6489 San Mateo San Francisco Peninsula, northern city limits of Pacifica along Calif. Hwy 1, just southwest of its junction with Skyline Boulevard 61 Comment
  SJSU15843  Agrostis densiflora John Rawlings, Toni Corelli 2014-8-13 1205 San Mateo Coastal bluff just west of Hwy 1, north of Pomponio State Beach 36 Comment
  UCD37958  Agrostis densiflora Beecher Crampton 1962-6-11 6489 San Mateo San Mateo County, northern city limits of Pacifica, along State Highway 1, just southwest of its junction with Skyline Boulevard. Comment
  JROH5649  Agrostis exarata John Rawlings 2014-5-28 12461246 San Mateo Jasper Ridge Biological Preserve, Stanford University; dry creek bed of San Francisquito Creek at the Dennis Martin site. 71 Comment
  CAS-BOT-BC139465  Agrostis hallii A. D. E. Elmer 1903-6-1 4264 San Mateo Alpine School House. Comment
  POM199091  Agrostis hallii A. D. E. Elmer 1903-06 4264 San Mateo Alpine School House. Comment
  JROH4789  Agrostis pallens John H. Thomas 1971-5-30 15964 San Mateo Jasper Ridge Biological Preserve, Stanford University 128 Comment
  JROH4790  Agrostis pallens John Rawlings 2005-5-25 1039 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just inside Escobar gate south of Road F and east of the gate near the fenceline. 160 Comment
  JROH4568  Allium John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4543  Allium amplectens John H. Thomas 1985-5-7 23645 San Mateo Jasper Ridge Biological Preserve, Stanford University. Serpentine grassland beyond blue oak woodland Comment
  UC1206473  Allium amplectens Le Roy Abrams 1902-5-8 2431 San Mateo Stanford University Comment
  CAS-BOT-BC467292  Allium dichlamydeum Elizabeth McClintock 1965-6-13 s.n. San Mateo Colma Canyon. Rocky soil-north facing slope 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
  SEINET3558047 Image available Allium lacunosum Lewis S. Rose 1932-5-3 32223 San Mateo Redwood City. 183 Comment
  CAS-BOT-BC132029  Allium peninsulare var. franciscanum L. R. A. 1902-5-4 2411 San Mateo Woodside Comment
  CAS-BOT-BC132035  Allium peninsulare var. franciscanum Alice Eastwood 1912-6-10 s.n. San Mateo Crystal Springs Comment
  CDA33772  Allium triquetrum D. G. Kelch 2011-3-13 11 .046 San Mateo Pacifica. Along sea bluffs Comment
  JROH4562  Allium triquetrum John Rawlings, Toni Corelli 2012-5-15 1122 San Mateo Jasper Ridge Biological Preserve, Stanford University. West bank of Bear Creek at its crossing of Road H near boundary fence. 82 Comment
  JROH1329  Alnus rhombifolia John Hunter Thomas 1992-5-26 25351 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek near bridge & below the dam Comment
  POM281274  Alnus rhombifolia Lyman Benson 1928-11-25 786 San Mateo Searsville Lake Dam. San Francisco Bay Watershed. 91 Comment
  RSA107019  Alnus rubra L. S. Rose 1955-11-7 55189 San Mateo Tunitos. 30 Comment
  SEINET3917721  Alopecurus aequalis Lewis S. Rose 1932-5-3 32209 San Mateo San Bruno.; 0 183 Comment
  CAS-BOT-BC137916  Alopecurus saccatus James McMurphy 1906-5-8 s.n. San Mateo Pond near head of Crystal Springs Lakes. Comment
  UC1108513  Alopecurus saccatus James McMurphy 1906-5-8 San Mateo pond near head of Crystal Springs Lakes 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
  RSA121069A  Amaranthus deflexus J. T. Howell 1956-6-20 31631 San Mateo Along El Camino Real, San Carlos Comment
  UCD97767  Amaranthus retroflexus John Thomas Howell 1978-7-18 53187 San Mateo McClellan residence, 1356 Bernal Ave., Burlingame. 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
  SBBG45023  Ambrosia chamissonis L. S. Rose 1935-9-29 35653 San Mateo Granada 3 Comment
  UC1543058  Ambrosia chamissonis Donald G. Nelson 1938-7-28 579 San Mateo Moss Beach Comment
  CAS-BOT-BC55526  Ambrosia psilostachya W. R. Dudley 1902-9-21 s.n. San Mateo On causeway over Crystal Springs Reservoir Comment
  HSC3512  Amsinckia intermedia R. S. White 1965-3-17 4 San Mateo 3 mi. W of the Stanford Golf Course on Sand Hill Rd. Comment
  JROH1355  Amsinckia menziesii John Hunter Thomas 1992-4-23 25162 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  RSA0091062  Amsinckia spectabilis John H. Thomas 1963-5-20 10104 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC45183  Anaphalis margaritacea Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain, on slope at flower garden adjacent to April Brook. Comment
  CAS-BOT-BC391910  Anemone grayi Elmer I. Applegate 1895-3-9 3 1/2 San Mateo Woodside Comment
  CAS-BOT-BC391911  Anemone grayi A. D. E. Elmer 1903-4-1 4844 San Mateo King's Mountain Comment
  CAS-BOT-BC391917  Anemone grayi Le Roy Abrams 1902-3-16 2275 San Mateo King's Mountain Comment
  CAS-BOT-BC391921  Anemone grayi C. F. Baker 1902-3-18 323 San Mateo King's Mountain Comment
  CAS-BOT-BC391916  Anemone grayi W. R. Dudley 1897-4-9 s.n. San Mateo Santa Cruz Peninsula. Pescadero Creek Comment
  CAS-BOT-BC391920  Anemone grayi unspecified 1906-6-10 s.n. San Mateo Near King's Mt. House Comment
  SEINET12087662  Anemone grayi L. S. Rose 1931-1 s.n. San Mateo Kings Mountain Comment
  CAS-BOT-BC221460  Angelica hendersonii H. L. Mason 1921-6-2 s.n. San Mateo Pebble Beach near Pescadero Comment
  CAS-BOT-BC273189  Anisocarpus madioides L. S. Rose 1941-7-2 41287 San Mateo Kings Mountain 540 Comment
  CAS-BOT-BC273174  Anisocarpus madioides W. R. Dudley 1895-6-6 4209 San Mateo Santa Cruz Mountain Peninsula. Banks of Woods of Conifers near Pescadero Creek - also on summit of Big Basin Comment
  UC917258  Anisocarpus madioides W. A. Harvey and J. M. Tucker 1948-6-29 1704 San Mateo just w junction with Highway 5 (Skyline Blvd.) (beside road to Portola State Park) Comment
  JEPS13142  Anthemis cotula W. L. Jepson 1928-7-11 12939 San Mateo Redwood City 3 Comment
  JROH502  Anthemis cotula John H. Thomas 1977-6-16 18757 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old racing oval Comment
  UCSC000808  Anthemis cotula G. E. Sindel 1935-7-25 312 San Mateo 0.25 mile W. of Pescadero Pescadero - Santa CruzQuadrangle 15 Comment
  JROH509  Anthemis cotula John Hunter Thomas 1983-6-29 22698 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA116720  Anthemis cotula W. R. Dudley 1893-6-8 s.n. San Mateo Near Cedro Cottage, Stanford University Comment
  UC1125531  Anthemis cotula N. K. Carlson 1935-7-5 40 San Mateo 3 mi s Bellvale; Santa Cruz Quad. 91 Comment
  RSA492536  Anthriscus caucalis Lyman Benson 1935-5-5 6521 San Mateo Lake Searsville 152 Comment
  JROH3607  Aphanes occidentalis John Hunter Thomas 1981-4-5 20266 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  CAS-BOT-BC454479  Aphanes occidentalis Walter & Irja Knight 1965-3-21 949 San Mateo North Power Line Ridge, San Bruno Mountain Comment
  CAS-BOT-BC454489  Aphanes occidentalis J. I. McMurphy 1906-5-8 s.n. San Mateo Crystal Springs Lakes, Santa Cruz Mountain Pennisula Comment
  SEINET3244631  Apiastrum angustifolium A. D. E. Elmer 1903-1 4461 San Mateo Crystal Spring Lake, Southern end Comment
  POM87798  Aquilegia eximia Helen D. Geis 1901-07 s.n. San Mateo Crypstal Springs Comment
  CAS-BOT-BC405852  Aquilegia formosa Le Roy Abrams 1902-4-13 2343 San Mateo Crystal springs Comment
  CAS-BOT-BC405894  Aquilegia formosa Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Bitter-cherry Ridge. Comment
  CAS-BOT-BC405899  Aquilegia formosa Phillip Wheeler 1965-3-28 s.n. San Mateo Columbine Gulch Comment
  CAS-BOT-BC17324  Arabis blepharophylla W. R. Dudley 1894-4-1 s.n. San Mateo Santa Cruz Peninsula. San Bruno Hills. Comment
  POM143334  Arabis blepharophylla A. D. E. Elmer 1903-04 4936 San Mateo San Bruno Hills Comment
  CAS-BOT-BC128669  Arbutus menziesii Phillip C. Wheeler 1965-5-25 s.n. San Mateo Brisbane Canyon - San Bruno Mountain Comment
  CAS-BOT-BC24174  Arctostaphylos andersonii Roxania Strichfield 1914-2-28 33 San Mateo Portola Rd. Comment
  CAS-BOT-BC23546  Arctostaphylos crustacea L. S. Rose 1942-3-30 42007 San Mateo Rocky brushy hills, Kings Mountain Comment
  JROH1925  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1974-6-30 17463 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
  JROH1936  Arctostaphylos crustacea subsp. crustacea Toni Corelli 2006-1-20 308 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9 134 Comment
  JROH1944  Arctostaphylos crustacea subsp. crustacea John Hunter Thomas 1987-4-30 24211 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET11988205  Arctostaphylos glandulosa W. Knight, Raiche, R. 1982-1 4420 San Mateo San Bruno Mountain, Buckeye Canyon on Oak Ridge 102 Comment
  CAS-BOT-BC24485  Arctostaphylos imbricata Arthur L. Menzies 1962-2-25 s.n. San Mateo San Bruno Mt. Comment
  CAS-BOT-BC24493  Arctostaphylos imbricata Marian L. Campbell 1915-6-17 s.n. San Mateo San Bruno Hills. Comment
  CHSC39432  Arctostaphylos imbricata B. A. Stein 1981-3-1 442 San Mateo San Bruno Mt., northeast summit ridge just below Radio Rd. 396 Comment
  RSA128344  Arctostaphylos imbricata P. H. Raven 1951-2-18 2733 San Mateo summit ridge of the San Bruno Mountains, topotype, endemic Comment
  UC942860  Arctostaphylos imbricata Lewis S. Rose 1951-3-13 51001 San Mateo San Bruno Hills San Bruno Hills (type locality) 304 Comment
  CAS-BOT-BC38524  Arctostaphylos montaraensis Walter Knight; Irja Knight 1981-1-25 3933 San Mateo Collected from San Bruno Mt. Comment
  JEPS47726  Arctostaphylos montaraensis Walter Knight and Irja Knight 1966-3-27 1761 San Mateo Pacific Ridge San Bruno Mt. 358 Comment
  SBBG83970  Arctostaphylos montaraensis R. Gankin 1966-5-17 740 b San Mateo Montara Mtn Comment
  UC21802  Arctostaphylos montaraensis J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  SEINET11987487  Arctostaphylos montaraensis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4203 San Mateo Strybing Arboretum, Golden Gate Park, San Fran., orig. few yds NE of Pacific Rock on San Bruno Mt Comment
  SEINET11989280  Arctostaphylos montaraensis R. Gankin, Hildreth, W. R. 1966-1 738 San Mateo Montara Mountain Comment
  CAS-BOT-BC39822  Arctostaphylos pacifica Walter Knight; Irja Knight 1981-3-1 4049 San Mateo From Tilden Botanic Garden, Berkeley. Originally collected from San Bruno Mountain. Comment
  RSA167584  Arctostaphylos pacifica R. F. Thorne, Percy C. Everett, K. Thorne 1963-6-9 32223 San Mateo On top of San Bruno Mt. near TV tower. Comment
  RSA633496  Arctostaphylos pacifica Jon E. Keeley 1996-6-24 27571 San Mateo On knob below end of paved road at top of San Bruno Mountain. 350 Comment
  CAS-BOT-BC44706  Arctostaphylos regismontana Lewis S. Rose 1955-2-21 55001 San Mateo Kings Mountain 609 Comment
  CAS-BOT-BC44734  Arctostaphylos regismontana Roman Gankin 1959-3-22 323 San Mateo Kings Mountain Road, 1.2 miles east of junction with State Highway 5, ca. 5 miles west of Woodside. Comment
  CAS-BOT-BC44749  Arctostaphylos regismontana W. R. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs Reservoir Comment
  POM131773  Arctostaphylos regismontana C. F. Baker 1902-1-15 271 San Mateo Kings Mountain. West side of King's Mountain. Comment
  RSA636747  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24627 San Mateo NW side of Montara Mtn. 150 Comment
  RSA636750  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24636 San Mateo NW side of Montara Mtn. 150 Comment
  UC1120845  Arctostaphylos regismontana C. M. Belshaw 1935-1-25 1467 San Mateo KIngs Mt. Rd. 6 mi w Woodside; Santa Cruz Quadrangle Comment
  UC1120846  Arctostaphylos regismontana C. M. Belshaw 1935-1-25 1466 San Mateo Kings Mt. Rd 4.7 mi w Woodside; Santa Cruz Quadrangle 609 Comment
  UC1424961  Arctostaphylos regismontana Gary D. Wallace 1974-12-28 1375 San Mateo along Skyline Blvd. s Upper Crystal Springs Res. (2.8 mi n of jct. of King Mtn. Rd. opposite Farwell's Rhododendron Nursery); Northern Santa Cruz Mtns. 640 Comment
  UC762307  Arctostaphylos regismontana R. F. Hoover 1941-2-12 4768 San Mateo Kings Mountain Comment
  UCD53804  Arctostaphylos regismontana Roman Gankin 1966-5-17 740 A San Mateo Montara Mountain. Comment
  CAS-BOT-BC44669  Arctostaphylos sensitiva George Oberlander 1950-4-2 521 San Mateo Southern Cahill Ridge Comment
  SEINET3410747 Image available Arctostaphylos sensitiva Lewis S. Rose 1931-4-4 s.n. San Mateo Kings Mountain, San Mateo County, California. Comment
  JEPS98865  Arctostaphylos tomentosa subsp. crustacea James B. Roof, Irja Knight 1964-9-14 San Mateo Montara Mountain, W summit Comment
  SD38436  Arctostaphylos tomentosa subsp. crustacea Edith A. Purer 1933-5-23 3607 San Mateo Skylline Comment
  SJSU6081  Arctostaphylos uva-ursi S. H. Casey 1969-5-18 256 San Mateo near summit of San Bruno Mt Comment
  SEINET11989206  Arctostaphylos uva-ursi E. McClintock, Knight, W.; Knight, I. 1982-1 4637 San Mateo NE of parking lot, San Bruno Mountain 335 Comment
  SEINET11987152  Arctostaphylos uva-ursi var. coactilis W. Knight, Knight, I. 1981-1 4055 San Mateo Tilden Botanic Garden, Berkeley, orig. from about 200 yds E of summit parking lot of San Bruno Mt Comment
  CAS-BOT-BC47693  Armeria maritima subsp. californica Elizabeth McClintock; Paul Reedberg 1988-4-26 s.n. San Mateo at southern tip of ridge dividing Sage and Poison Oak Ravines 137 Comment
  CHSC1225  Armeria maritima var. californica J. Baynes 1929-5-23 San Mateo Half Moon Bay. Comment
  JROH513  Artemisia biennis Roxana S. Ferris 1924-10-6 4096 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake on Portola Highway Comment
  CAS-BOT-BC84880  Artemisia californica James McMurphy 1905-10-1 s.n. San Mateo Corte de Madera Creek Comment
  CAS-BOT-BC84887  Artemisia californica Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain, burned area in Devil's Arroyo Comment
  JROH514  Artemisia californica L. R. Abrams 1902-12-23 3098 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  JROH518  Artemisia douglasiana John H. Thomas 1976-10-16 18439 San Mateo Jasper Ridge Biological Preserve, Stanford University; along or near San Francisquito Creek from the low flow crossing to the vicinity of the old fireplace ruins downstream Comment
  UC892419  Artemisia douglasiana Lewis S. Rose 1938-8-18 38232 San Mateo San Mateo 30 Comment
  CAS-BOT-BC93933  Artemisia douglasiana George Oberlander 1949-9-25 380 San Mateo San Francisco Watershed Reserve, along stream entering San Andreas Lake Comment
  HSC4721  Artemisia douglasiana L. S. Rose 1969-8-8 69090 San Mateo Skyline Blvd. and Half Moon Bay Rd; Cahill Ridge 244 Comment
  RSA116777  Artemisia douglasiana Josephine Randall 1907-6-29 53 San Mateo Santa Cruz Penninsula, Portola road Comment
  RSA184863  Artemisia douglasiana L. S. Rose 1965-9-4 65101 San Mateo Skyline Blvd and half Moon Bay Road, Cahill Ridge 244 Comment
  CAS-BOT-BC93638  Artemisia pycnocephala C. B. Wolf 1930-11-5 1062 San Mateo 4 miles south of Pescadero 7 Comment
  SD41464  Artemisia pycnocephala Edith A. Purer 1933-7-27 5387 San Mateo Partially stabilized sand dunes 2 miles south of Pigeon Point Comment
  CAS-BOT-BC384619  Asarum caudatum J. Lovelle 1973-8-5 75 San Mateo Pomponio Canyon Comment
  SEINET10580520  Asclepias fascicularis Lewis S. Rose 1965-8-27 Rose 65092 San Mateo Emerald Lake, West of Redwood City, dry slopes. 122 Comment
  POM58697  Aster chilensis Edward L. Greene 1902-9-2 1550 San Mateo Crystal Springs Lake Comment
  UCR254760  Aster chilensis Peter Rubtzoff 1975-9-11 8376 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  CAS-BOT-BC186756  Astragalus gambelianus George Oberlander 1950-4-22 786 San Mateo San Andreas Valley Comment
  JROH1984  Astragalus gambelianus A. C. Kimber & Lucile Roush 1918-4-25 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1986  Astragalus gambelianus Duncan M. Porter 1960-5-5 676 B San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of N-facing slope above Webb Ranch. Quadrat H-5 Comment
  JROH1995  Astragalus gambelianus John Hunter Thomas 1982-4-28 20876 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC186750  Astragalus gambelianus Marck Menke 1998-4-24 Menke 3 San Mateo On a slope immediately west of the ravine west of Juncus Ravine on the south slope of San Bruno Mt. Ridge, about the Terrabay development 121 Comment
  CAS-BOT-BC186751  Astragalus gambelianus W. R. Dudley 1894-4-21 s.n. San Mateo Below Crystal Springs Dam Comment
  CAS-BOT-BC186757  Astragalus gambelianus Lois E. James 1947-4-11 1757 San Mateo Hills back of Redwood City 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
  JEPS54823  Astragalus pycnostachyus W. L. Jepson 1910-8-17 4158 San Mateo Tunitas Creek Comment
  CAS-BOT-BC193090  Astragalus pycnostachyus var. pycnostachyus C. F. B. 1902-10-1 1744 San Mateo Pillar Point Comment
  CAS-BOT-BC193091  Astragalus pycnostachyus var. pycnostachyus Alice Eastwood; John Thomas Howell 1938-6-26 6064 San Mateo Arroyo de los Frijoles Comment
  CAS-BOT-BC193096  Astragalus pycnostachyus var. pycnostachyus W. R. Dudley 1894-4-21 s.n. San Mateo Field near Crystal Springs Reservoir Comment
  CAS-BOT-BC193097  Astragalus pycnostachyus var. pycnostachyus J. W. Congdon 1897-8-11 s.n. San Mateo San Gregorio Comment
  SBBG114453  Astragalus pycnostachyus var. pycnostachyus D. Wilken with E. Painter, M. Wetherwax 2000-7-29 15845 San Mateo edge of State Hwy 1, 0.6 km S of mouth of San Gregorio Crk 40 Comment
  UC81253  Astragalus pycnostachyus var. pycnostachyus C. F. Baker 1902-10-1 1744 San Mateo Pillar Point Comment
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Feb 2 2012
  RSA785883  Athyrium filix-femina subsp. cyclosorum Peter Rubtzoff 1977-11-24 9144 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  UC499711  Atriplex hortensis L. R. Abrams 1932-8-22 13410 San Mateo Bayshore Highway near Redwood City; near Redwood City Comment
  CDA2953  Atriplex hortensis T. C. Fuller 1961-11-1 7188 San Mateo East of Industrial Way at Garden Street, north limits of Redwood City. 0 Comment
  RSA478326  Atriplex leucophylla E. A. Purer 1932-7-18 4013 San Mateo Half Moon Bay Comment
  JROH1805  Atriplex prostrata Roxana S. Ferris 1924-10-6 4095 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake on Portola Highway Comment
  SEINET4136305  Atriplex prostrata Howard C. Stutz 1995-10-3 9833 San Mateo Half Moon Bay.; 0 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
  JROH4839  Avena barbata John H. Thomas 1967-3-26 12420 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA291577  Avena barbata T. C. Fuller 1971-6-10 19879 San Mateo 1.6 km. east of the San Gregorio. Comment
  CAS-BOT-BC145956  Avena fatua George Oberlander 1950-4-23 862 San Mateo San Francisco Watershed Reserve. San Andreas Valley. Comment
  CAS-BOT-BC145957  Avena fatua John Thomas Howell 1956-4-25 31293 San Mateo Skyline Boulevard just north of Crystal Springs Lake dam. Comment
  CAS-BOT-BC68326  Azolla filiculoides Malcom A. Nobs; S. Galen Smith 1949-8-26 1593 San Mateo Mouth of Pescadero Creek Comment
  CAS-BOT-BC98696  Baccharis douglasii Theresa Gertrude Williamson 1923-8-4 s.n. San Mateo Near La Honda Comment
  RSA212153  Baccharis douglasii L. S. Rose 1969-8-22 69099 San Mateo Skyline Blvd. & La Honda Road. 610 Comment
  RSA226539  Baccharis douglasii E. K. Balls 1969-9-18 12172 San Mateo 5 miles south of junction Highway 84 and Highway 35 along La Honda Road. Comment
  SEINET3386136 Image available Baccharis douglasii David D. Keck 1931-9-27 1271 San Mateo Dumbarton Bridge. Comment
  JROH533  Baccharis glutinosa John H. Thomas 1968-5-31 12938 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH534  Baccharis glutinosa John H. Thomas 1970-7-5 15669 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH538  Baccharis glutinosa John Hunter Thomas 1979-9-9 19731 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of Searsville Lake Comment
  UC893646  Baccharis glutinosa Lewis S. Rose 1941-10-31 41172 San Mateo Searsville Lake 91 Comment
  CAS-BOT-BC99513  Baccharis pilularis L. R. Abrams 1914-10-14 5137 San Mateo Tunitas Comment
  CAS-BOT-BC99522  Baccharis pilularis Ned Cahill 1974-4-30 240 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC99539  Baccharis pilularis P. C. Everett 1934-8-19 6068 San Mateo Pescadero 198 Comment
  SEINET3387468 Image available Baeria chrysostoma Lewis S. Rose 1933-4-30 33128 San Mateo Redwood City. Comment
  CAS-BOT-BC16619  Barbarea orthoceras Javier Penalosa 1963-2-23 2651 San Mateo San Bruno Mountains. Ravine south of Crocker Avenue. 213 Comment
  CAS-BOT-BC16627  Barbarea orthoceras Fred Hemphill 1973-4-22 736 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 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
  UC10249  Barbarea orthoceras J. Burtt Davy June 21-23, 1893 1147 San Mateo Pilarcitos Lake and Canon Comment
  JROH3925  Bellardia trixago John Hunter Thomas 1986-6-7 24083 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD227899  Bellardia trixago G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3737 San Mateo Portola Valley: Golden Hills Rd along Los Trancos Creek. 106 Comment
  UC1543196  Bellis perennis Donald G. Nelson 1940-7-7 696 San Mateo on road from Half Moon Bay to San Mateo Pilarcitos Creek 76 Comment
  RSA681565  Berberis nevinii Annuschka Deb 1989-4-14 88 San Mateo YBN Demonstration Garden Comment
  CAS-BOT-BC75876  Berberis pinnata John H. Thomas 1958-2-15 6990 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 182 Comment
  UC306615  Berberis pinnata A. D. E. Elmer April, 1903 4820 San Mateo San Bruno Hills Comment
  UCSB17425  Betula occidentalis Schulte, John 1963-4-14 San Mateo Jasper Ridge, 3 mi. SW of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC102030  Bidens laevis Ned Cahill 1974-5-18 298 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  POM32550  Boisduvalia densiflora var. densiflora A. D. E. Elmer 1903-06 4273 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC280862  Bolboschoenus maritimus subsp. paludosus Elizabeth McClintock; Paul Reeberg 1989-5-2 s.n. San Mateo San Bruno Mountains. PG&E Marsh 4 Comment
  UCD140047  Bolboschoenus robustus Herbert L. Mason; Verne Grant 1946-8-28 13077 San Mateo mouth of Tolay Creek. Comment
Read comments
Aug 16 2015
  CAS-BOT-BC95342  Bowlesia incana Walter Knight; Irja Knight 1965-5-9 1099 San Mateo Devil's Arroyo, San Bruno Mountain 274 Comment
  CAS-BOT-BC389695  Boykinia occidentalis Mary K. Wicksten 1975-6-14 118 San Mateo Memorial Park Comment
  UCD57119  Brachypodium distachyon Peter H. Raven 1957-6-30 11015 San Mateo 1.8 miles east of Pescadero on road to La Honda. Comment
  CDA36481  Brachypodium sylvaticum Ellen Gartside 2011-7-28 s.n. San Mateo Woodside; Old La Honda Rd., on deer trail north of dirt road to Thornewood. Comment
  JROH5793  Brachypodium sylvaticum Nona Chiariello, Bill Gomez 2016-6-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Just east of path inside boundary fence along Portola Road south of caretaker's house. 105 Comment
  JROH5555  Brassica nigra Toni Corelli 2013-6-6 380 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 12, 100 meters north of Mapache Gate. 127 Comment
  JROH1457  Brassica nigra D. E. Breedlove 1971-5-31 19364 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  RSA0084271  Brassica nigra John H. Thomas 1963-8-4 10234 San Mateo About 2.5 miles inland from San Gregorio along the highway Comment
  CAS-BOT-BC36669  Brassica oleracea L. R. Abrams; Ira L. Wiggins 1939-6-3 439 San Mateo 2 miles north of Pigeon Point Lighthouse. Comment
  JROH1462  Brassica rapa John H. Thomas 1972-4-1 16046 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC36791  Brassica rapa Reed Clark Rollins 1941-2-23 2940 San Mateo 10 miles south of San Francisco. Comment
  UCD114806  Brassica rapa W. A. Harvey; J. M. Tucker 1948-6-28 1699 San Mateo ca. 3 miles north of Pescadero. Comment
  JROH4874  Briza maxima John Hunter Thomas 1989-5-5 24657 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4876  Briza maxima John Hunter Thomas 1990-5-29 24861 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near picnic area Comment
  CAS-BOT-BC145330  Briza minor John H. Thomas 1955-4-6 4846 San Mateo East facing slope of San Bruno Mountain just north of South San Francisco. 91 Comment
  CAS-BOT-BC145331  Briza minor John H. Thomas 1961-5-13 9344 San Mateo At Franklin Point. Comment
  CAS-BOT-BC145336  Briza minor David D. Keck 1932-4-18 1433 San Mateo Burlingame. On the shore of San Francisco Bay. 2 Comment
  CAS-BOT-BC145337  Briza minor Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain. Above Hillcrest Boulevard, South San Francisco. Comment
  CDA1781  Briza minor A. A. Beetle 1941-4-2 1738 San Mateo Near San Carlos Comment
  JROH4890  Briza minor W. Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9, halfway to top Comment
  POM264294  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo near San Carlo in open field. Comment
  UC790954  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo near San Carlos Comment
  UCR122969  Briza minor George K. Helmkamp, E. A. Helmkamp 2001-6-2 6791 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
  SEINET10868322  Briza minor Alan A. Beetle 1941-4-20 Beetle 1738 San Mateo Near San Carlos, rich heavy loam, in open field. Comment
  JROH4583  Brodiaea elegans subsp. elegans John Hunter Thomas 1977-6-7 18733 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC484343  Brodiaea elegans subsp. elegans P. R. Hichborn 1920-6-1 280 San Mateo Santa Cruz Mountain Peninsula back of Redrood City Comment
  SBBG39527  Brodiaea terrestris subsp. terrestris L. S. Rose 1970-4-8 70024 San Mateo Black Mtn, W of San Mateo 121 Comment
  SJSU9943  Brodiaea terrestris subsp. terrestris J. R. Verbarg 1955-5-14 44 San Mateo Crystal Springs Hills Comment
  CAS-BOT-BC483185  Brodiaea terrestris subsp. terrestris Philip C. Wheeler 1965-5-25 s.n. San Mateo Brisbane Ridge, south of power lines, San Bruno Mountain Comment
  CAS-BOT-BC148979  Bromus carinatus var. carinatus J. H. Thomas 1954-4-3 3837 San Mateo Pilarcitos Creek Road, 3.5 miles northeast of Halfmoon Bay. 121 Comment
  CAS-BOT-BC148984  Bromus carinatus var. carinatus Ira L. Wiggins 1928-4-22 2946 San Mateo Moss Beach. Comment
  CAS-BOT-BC148995  Bromus carinatus var. carinatus Le Roy Abrams 1915-6-14 5558 San Mateo Kings Mountain. At first bridge. Comment
  JROH4900  Bromus carinatus var. carinatus John Rawlings 2013-4-16 1136 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along the Escobar Gate fenceline about 100 m east of the gate 149 Comment
  CAS-BOT-BC148765  Bromus carinatus var. marginatus Walter Knight; Irja Knight 1964-4-13 s.n. San Mateo San Bruno Mountain. San Bruno Mountain Power Line Ridge. Comment
  CAS-BOT-BC156176  Bromus catharticus John H. Thomas 1969-4-24 14902 San Mateo Near Canada College, Redwood City, near Farm Hill Drive. Comment
  CAS-BOT-BC227624  Bromus diandrus Peter Rubtzoff 1977-6-21 9068 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  OBI23249  Bromus diandrus Ira L. Wiggins 1975-5-26 22153 San Mateo Bed of San Francisquito Crk, ca 150 m upstream from Chaucer/Pope St bridge, Menlo Comment
  RSA475252  Bromus diandrus Lyman Benson 1935-5-5 6520 San Mateo Lake Searsville; Santa Cruz Mt. Range. S. F. Bay watershed 152 Comment
  CAS-BOT-BC155135  Bromus hordeaceus Ned Cahill 1974-5-30 304 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  JROH4931  Bromus hordeaceus John Rawlings 2010-4-28 1093 San Mateo Jasper Ridge Biological Preserve, Stanford University. SW corner of Sun Field Station. 119 Comment
  UCD58780  Bromus hordeaceus L. Whitney 1935-3-20 s.n. San Mateo Bayshore Highway--10 miles south of Cliff House, San Francisco. Comment
Read comments
Nov 12 2011
  UCD58829  Bromus hordeaceus Beecher Crampton 1962-6-11 6504 San Mateo Sharp Park. Mori's Point Road just west of State Hwy. 1. Comment
  JROH4934  Bromus laevipes John H. Thomas 1973-6-10 16816 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4936  Bromus laevipes John Hunter Thomas 1989-6-13 24769 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4959  Bromus madritensis subsp. rubens John Rawlings 2013-5-7 1182 San Mateo Jasper Ridge Biological Preserve, Stanford University. Road L near the Searsville School sign. 107 Comment
  CAS-BOT-BC162227  Bromus maritimus John H. Thomas 1963-7-19 10196 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles northwest of Santa Cruz. Comment
  SEINET3923660  Bromus mollis K. Harper 1984-4-25 84 -6 San Mateo Along crest of Jasper Ridge, Research Preserve, Stanford University.; 0 Comment
  CAS-BOT-BC161754  Bromus rubens Walter Knight; Irja Knight 1965-5-15 s.n. San Mateo San Bruno Mountain. Pig Ranch Ravine. Comment
  CAS-BOT-BC185393  Bromus vulgaris W. R. Dudley 1895-6-7 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of Ridge between Butano and Pescadero Creek. Comment
  JEPS26836 Image available Bromus vulgaris Rimo Bacigalupi with L. R. Heckard 1961-5-14 7699 San Mateo about 3/4 mi below and se of Stone Dam Reservoir (canyon of Pilarcitos Creek, w base of Cahill Ridge); Cahill Ridge 152 Comment
  UCD60240  Bromus vulgaris S. S. Tillett; I. Sternback 1956-6-24 534 San Mateo Middleton properton, behind (n.) Portola Camp Store, just outside Portola State Park. 396 Comment
  UC676750  Cakile edentula Reed C. Rollins 1941-7-19 2961 San Mateo along beach at Half Moon Bay Half Moon Bay Comment
  SEINET12004683  Cakile edentula subsp. edentula M. T. Doutt 1931-1 189 San Mateo Ano Nuevo Pt Comment
  SD38257  Cakile edentula var. edentula Edith A. Purer 1933-7-27 5346 San Mateo Pigeon Point Comment
  CAS-BOT-BC36871  Cakile edentula var. edentula W. R. Dudley 1908-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Laguna Salada. Comment
  CAS-BOT-BC36961  Cakile maritima var. maritima Robert Robertson 1954-5-1 126 San Mateo By roadside at back of beach near San Gregorio Creek. 6 Comment
  CAS-BOT-BC36962  Cakile maritima var. maritima Daniel Cohen 1953-5-9 94 San Mateo Near mouth of Pescadero Creek. Comment
  CAS-BOT-BC185144  Calamagrostis nutkaensis H. L. Mason 1921-5-29 s.n. San Mateo Near Arroyo de Las Frijoles. Comment
  POM199095  Calamagrostis nutkaensis A. D. E. Elmer 1903-05 5040 San Mateo San Pedro Comment
  CAS-BOT-BC438532  Calandrinia ciliata Le Roy Abrams 1902-5-4 2406 San Mateo Woodside Comment
  CDA20324  Calendula arvensis Anon. 2005-3-2 PDR 1329519 San Mateo San Bruno. Balboa Way, next to San Bruno Park. 0 Comment
  CAS-BOT-BC167301  California macrophylla W. R. Dudley 1896-4-17 s.n. San Mateo Pescadero Comment
  JROH4607  Calochortus albus John H. Thomas 1977-4-21 18539 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4611  Calochortus albus John Hunter Thomas 1985-4-25 23560 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC492222  Calochortus albus Dr. A. Kellogg; W. G. W. Harford 1861-6-10 991 San Mateo San - handwriting illegible Comment
  JROH4614  Calochortus argillosus James McMurphy 1909-6-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4623  Calochortus argillosus John H. Thomas 1974-6-30 17458 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4616  Calochortus argillosus John H. Thomas 1960-6-8 8781 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12044654  Calochortus coeruleus J. D. Randall 1907-1 224 San Mateo Kings Mt Comment
  UC3425  Calochortus luteus Alice Eastwood May 1896 San Mateo Crystal Springs Comment
  CHSC13523  Calochortus tolmiei S. Villard 1974-4-28 4 San Mateo Found on King's Mt. Road, Woodside, ca. 1 mi w of Mounted Patrol Grounds. 152 Comment
  CAS-BOT-BC270669  Calycadenia multiglandulosa L. S. Rose 1937-9-21 37658 San Mateo Emerald Lake, W of Redwood City 182 Comment
  JEPS22891  Calycadenia multiglandulosa John H. Thomas 1958-11-22 7506 San Mateo about 5 mi sw of Palo Alto (Jasper Ridge); Jasper Ridge 152 Comment
  JROH5811  Calycadenia multiglandulosa John Rawlings 2016-8-16 1940 San Mateo Jasper Ridge Biological Preserve, Stanford University; along birder transect path in rocky serpentine prairie on ridge-top (Area C) 174 Comment
  CHSC42068  Calystegia purpurata Rusti Gammon 1986-3-30 13 San Mateo Ca. 8.1 mi sw of Saratoga, 4.1 mi w off Hwy 9. 569 Comment
  CAS-BOT-BC224667  Calystegia purpurata subsp. purpurata Paul Arnaud 1941-5-3 s.n. San Mateo Redwood City, Hills, Jefferson Avenue Comment
  UCSB16816  Calystegia subacaulis subsp. subacaulis Schulte, John 1963-4-28 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC160323  Camissoniopsis cheiranthifolia subsp. cheiranthifolia W. R. Dudley 1897-10-10 s.n. San Mateo By shore toward Pilar Point Comment
  SEINET10463045  Campanula prenanthoides Randall 1907-6-29 RANDALL 17 San Mateo King's Mountain Road Comment
  JROH1477  Capsella bursa-pastoris John Hunter Thomas 1984-4-10 23284 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC37664  Cardamine californica Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountains. Cable Ravine. Comment
  CAS-BOT-BC37670  Cardamine californica Reed Clark Rollins 1941-2-22 2937 San Mateo Santa Cruz Mountains. About 8 miles northwest of Palo Alto. 152 Comment
  CAS-BOT-BC37677  Cardamine californica A. D. E. Elmer 1903-4-1 4468 San Mateo Portola. Comment
  HSC6686  Cardamine californica P. A. Murphy 1965-4-16 37 San Mateo 6 mi. from Half Moon Bay in Hatches Woods Comment
  POM144148  Cardamine californica var. integrifolia C. F. Baker 1902-4-12 501 San Mateo La Honda. Comment
  RSA484626  Cardamine californica var. integrifolia Glenn A. Gorelick 1967-2-10 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  UC483498  Cardamine californica var. integrifolia Ira L. Wiggins 1931-2-21 5089 a San Mateo 1/2 mi n Pebble Beach Hotel (Pescadero Beach); , n of Pebble Beach Hotel Comment
  JROH5654  Cardamine hirsuta John Rawlings 2014-4-3 1258 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11 143 Comment
  CAS-BOT-BC167120  Cardamine oligosperma Peter Rubtzoff 1977-4-14 8946 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, northwest of Fog Forest. Comment
  JROH1502  Cardamine oligosperma John Hunter Thomas 1989-4-20 24641 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC120252  Cardionema ramosissimum T. S. Brandegee Sept. 1901 San Mateo South San Francisco Comment
  JROH579  Carduus pycnocephalus subsp. pycnocephalus John Hunter Thomas 1980-5-8 19952 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH582  Carduus pycnocephalus subsp. pycnocephalus John Hunter Thomas 1989-5-9 24708 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC23961  Carduus tenuiflorus Mary Katherine Wicksten 1971-7-15 27 San Mateo Huddart Park Comment
  CAS-BOT-BC18186  Carex W. R. Dudley 1899-4-13 s.n. San Mateo San Francisquito Creek below Cedro Cottage Bridge, Stanford University. Comment
  CAS-BOT-BC17853  Carex amplifolia Lewis S. Rose 1933-6-23 33250 San Mateo Kings Mountain. 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
  CAS-BOT-BC19323  Carex barbarae Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5247 San Mateo Lobitos. Comment
  CAS-BOT-BC19543  Carex bolanderi Lewis S. Rose 1933-6-23 33253 San Mateo Kings Mountain. Comment
  POM224071  Carex bolanderi L. S. Rose 1935-6-11 35216 San Mateo Kings Mountain. Comment
  POM79201  Carex densa A. D. E. Elmer 1903-06 4428 San Mateo Crystal Springs Lake. Comment
  UC212817  Carex densa Kellogg and Brannan 1870-6-1 San Mateo San Gregorio Creek Comment
  RSA304146  Carex densa J. T. Howell 1938-5-1 13785 San Mateo Near South San Francisco. Comment
  RSA783464  Carex densa Peter Rubtzoff 1975-5-21 7976 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction Comment
  RSA304145  Carex dudleyi L. S. Rose 1937-4-30 37243 San Mateo Brisbane. 6 Comment
  SEINET7561257 Image available Carex harfordii Andrew L. Hipp, Jacob Pollock 1999-5-22 282 San Mateo Marsh at the mouth of Pescadero Creek, near Pescadero State Beach, north pond. 6 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-BC210008  Carex harfordii Peter Rubtzoff; Barbara Duetsch; James Roof 1980-5-3 9437 San Mateo The Edward P. Lee Memorial Site, at the bottom of canyon, below the Nine Fern Rock. Comment
  CAS-BOT-BC21813  Carex harfordii W. R. Dudley 1906-6-10 s.n. San Mateo Near pond on So. Cahill Ridge. Comment
  CAS-BOT-BC227873  Carex harfordii Elizabeth McClintock; Paul Reeberg 1989-5-23 s.n. San Mateo San Bruno Mountains. In Wax Myrtle Ravine 121 Comment
  JROH5599  Carex nudata John Rawlings 2013-4-30 1180 San Mateo Jasper Ridge Biological Preserve, Stanford University. Old horse trail crossing of San Francisquito Creek near Boething Nursery site. (Leave Trail 2 extension at metal post SE of last redwoods). 66 Comment
  UC833566  Carex nudata W. R. Dudley 1903-6-6 San Mateo mouth of Peters Creek, below Iversons Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC119342  Carex obnupta Elizabeth McClintock 1974-11-8 s.n. San Mateo Seepage area on N side of Guadalupe Parkway in the saddle. San Bruno Mt. Comment
  RSA788837  Carex obnupta Peter Rubtzoff 1978-3-18 9173 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-BC278759  Carex pendula John Rawlings 2011-7-3 s.n. San Mateo Along Purisima Creek, 200 m E of junction of Purisima Creek Trail and path to Judson Redwood Grove, about 0.5 air miles E of Higgins Canyon Road, Purisima Creek Redwoods Open Space Preserve, W slope of Santa Cruz Mountains; San Francisco Bay (SnFrB) 165 Comment
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Jan 26 2018
  POM79433  Carex serratodens C. F. Baker 1902-5-10 811 San Mateo Crystal Springs Lake. Comment
  JROH4361  Carex subbracteata W. Lennihan 1989-5-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Mapache Trail. Comment
  UCR280162  Carex subbracteata Peter Rubtzoff 1976-6-30 8707 San Mateo Central Coast, San Bruno Mountains. 'Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; westernmost part of the area on slope across fence 220 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
  RSA88836  Carex subbracteata J. T. Howell 1938-5-1 13783 San Mateo Near South San Francisco. Comment
  CAS-BOT-BC116825  Carex subbracteata var. subbracteata George Thomas Oberlander 1950-4-22 633 San Mateo Marsh, Pilarcitos Canyon Comment
  CAS-BOT-BC116834  Carex subbracteata var. subbracteata Elmer Ivan Applegate 1895-3-3 778 San Mateo Unspecified Comment
  JROH4364  Carex tumulicola Herbert Dengler unspecified s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4366  Carex tumulicola John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC115512  Carex tumulicola W. R. Dudley 1906-5-13 s.n. San Mateo In oak woods, SW of San Mateo Comment
  SEINET3908568  Carex tumulicola Lewis S. Rose 1971-5-18 71031 San Mateo Tartan Trail Road. Hillsborough.; 0 91 Comment
  CAS-BOT-BC230109  Carpobrotus chilensis Dr. Barton W. Evermann 1924-6-22 s.n. San Mateo Ano Nuevo Island Comment
  JROH4012  Castilleja H. J. Dengler 1961-4-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5852  Castilleja John H. Thomas 1978-4-20 19090 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM15426  Castilleja affinis C. F. Baker 1903-4-12 505 San Mateo San Gregorio. Comment
  RSA10376B  Castilleja affinis H. A. Barker 1926-5-1 606 San Mateo Kings Mt. Comment
  UCR71531  Castilleja affinis Rimo Bacigalupi, J. R. Sweeney 1954-8-3 4741 San Mateo Upper part of Tunitas Canyon Road, W slopes of Kings Mtn, about 3/4 mi west of Skyline Boulevard 579 Comment
  POM283660A  Castilleja affinis Lyman Benson 1930-5-1 2072 San Mateo Stanford Univ. San Lorenzo mtn range. 152 Comment
  CHSC57099  Castilleja affinis subsp. affinis Steven Triana 1988-5-24 200 San Mateo Along w side of Old La Honda Road ca 0.8 mi s of Portola Road and 4.0 mi s of Woodside. 201 Comment
  JEPS88798  Castilleja affinis subsp. affinis T. I. and F. M. Chuang 1991-6-29 7851 San Mateo ca .33 mi s Pescadero State Beach Comment
  JROH3941  Castilleja affinis subsp. affinis John H. Thomas 1969-6-4 15109 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3944  Castilleja affinis subsp. affinis John H. Thomas 1976-5-26 18156 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3946  Castilleja affinis subsp. affinis John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1032388  Castilleja affinis subsp. affinis G. E. Sindel 1935-7-24 311 San Mateo Mouth of Pesacdero Creek Mouth of Pescadero Creek; Santa Cruz Quad. 3 Comment
  UC444883  Castilleja affinis subsp. affinis R. L. Pendleton 1907-4-2 550 San Mateo w of Los Gatos 243 Comment
  JEPS103892  Castilleja affinis subsp. affinis T. I. Chuang and F. M. Chuang 1991-7-3 7860 San Mateo 1.8 mile SW from junction of Interstate 280 and rt. 92 on rt. 92 Comment
  JEPS60429  Castilleja affinis subsp. affinis T. I. Chuang and F. M. Chuang 1969-6-22 6669 San Mateo 0.2 mi n San Mateo and Santa Cruz County line (on Highway 1) Comment
  UCSC007730  Castilleja affinis subsp. affinis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  SJSU910  Castilleja ambigua J. W. Tilden 1946-7-15 1004 San Mateo Pescadero 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
  SJSU15806  Castilleja ambigua subsp. ambigua Toni Corelli 2015-5-3 1194 San Mateo Northern edge of Fitzgerald Marine Reserve, and private property adjacent in Moss Beach also know as Vallemar Bluff 14 Comment
  JROH3959  Castilleja attenuata John H. Thomas 1974-4-19 17159 San Mateo Jasper Ridge Biological Preserve, Stanford University; near area H Comment
  JROH3960  Castilleja attenuata John H. Thomas 1974-4-25 17193 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3979  Castilleja densiflora subsp. densiflora John H. Thomas 1974-4-25 17199 San Mateo Jasper Ridge Biological Preserve, Stanford University; top of ridge Comment
  JROH3981  Castilleja densiflora subsp. densiflora John Hunter Thomas 1981-4-23 20472 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3984  Castilleja densiflora subsp. densiflora John Hunter Thomas 1983-4-3 21308 San Mateo Jasper Ridge Biological Preserve, Stanford University; along beach near Searsville Lab Comment
  JROH3986  Castilleja densiflora subsp. densiflora John Hunter Thomas 1986-5-8 24026 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5758  Castilleja densiflora subsp. densiflora M. Ray 1982-4-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Searsville Lab. Comment
  CAS-BOT-BC243839  Castilleja latifolia John Thomas Howell 1933-4-9 10964 San Mateo Granada Comment
  JEPS112712  Castilleja rubicundula subsp. lithospermoides Dean W. Taylor 1994-5-10 14271 San Mateo Edgewood Park; ca. 300 meters SE of junction of Edgewood Road and Canada Road, ca. 200 m W of trail parallel to and on west side of Highway 280 137 Comment
  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
  SBBG32465  Castilleja rubicundula subsp. lithospermoides L. S. Rose 1966-5-8 66034 San Mateo Emerald Lake, W of Redwood City 91 Comment
  UC1012134  Castilleja rubicundula subsp. lithospermoides F. W. Pennell and D. D. Keck 1940-5-15 25413 San Mateo above Redwood City (Emerald Lake); Emerald Lake 45 Comment
  UC1303088  Castilleja rubicundula subsp. lithospermoides LeRoy Abrams 1915-6-7 5237 San Mateo near Woodside-Crystal Springs road junction with Whipple Road Comment
  JEPS85727  Castilleja wightii L. R. Heckard 1964-6-24 1395 San Mateo near San Bruno Mt. summit (n of transmitting stations); San Bruno Mt. 304 Comment
  RSA10376A  Castilleja wightii H. A. Barker 1926-5-1 606 San Mateo Kings Mt. Comment
  RSA505384  Castilleja wightii R. C. Bacigalupi, G. Thomas Robbins 1955-8-4 5446 San Mateo Along Calif. Highway No. 1, at western end of Montara Mountain, 1.1 mi. north of northern limits of town of Montara. Comment
  UC198390  Castilleja wightii Katharine Brandegee 1917-7-15 San Mateo Moss Beach Comment
  RSA294161  Castilleja wightii Robert A. Norris, John L. Inase, Allen Nakagawa 1981-7-25 4229 San Mateo Alongside footpath on brushy slope about 50 ft. above a marshy lagoon border, N of mouth of Pescadero Creek, Pescadero State Beach. Comment
  RSA516565  Castilleja wightii R. C. Bacigalupi, G. Thomas Robbins 1954-6-18 4564 San Mateo Along State Highway No. 1, 0.25 mile north of its junction with the old road (grade) over the hill to Swanton. Just above the seashore. 0 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
  UCD114587  Caulanthus lasiophyllus Ronald E. Dengler 1960-4-3 3 San Mateo Jasper Ridge, Stanford Biological Reserve. 190 Comment
  CAS-BOT-BC47936  Ceanothus Le Roy Abrams 1902-5-20 2476 San Mateo Kings Mountain Comment
  RSA15267  Ceanothus cuneatus Carl B. Wolf 1927-3-2 231 San Mateo Above Searsville Lake Comment
  RSA10378  Ceanothus oliganthus H. A. Barker 1926-5-1 604 San Mateo Kings Mt. Comment
  JROH3533  Ceanothus oliganthus var. sorediatus John Hunter Thomas 1981-5-25 20617 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1071321  Ceanothus oliganthus var. sorediatus G. E. Sindel 1935-8-29 345 San Mateo 2 1/2 mi nw Black Mt.; Santa Clara Quad. 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
  CAS-BOT-BC51242  Ceanothus papillosus J. I. McMurphy 1906-5-20 13 San Mateo Santa Cruz Peninsula - King's Mt. Santa Cruz Mts. 457 Comment
  UC1071222  Ceanothus papillosus C. J. Kraebel 1934-4-15 7 San Mateo head of Pescadero Creek Santa Cruz Quad., head of Pescadero Creek Comment
  SEINET12209941  Ceanothus papillosus J. D. McMurphy 1906-1 13 San Mateo King's Mt., Santa Cruz Mts 457 Comment
  UC79825  Ceanothus papillosus var. papillosus C. F. Baker 1902-5-10 803 San Mateo Kings Mountain Comment
  CAS-BOT-BC52279  Ceanothus thyrsiflorus Elizabeth McClintock 1963-2-16 s.n. San Mateo unspecified Comment
  CAS-BOT-BC52280  Ceanothus thyrsiflorus Elizabeth McClintock 1965-3-28 s.n. San Mateo North Powerline Ridge Comment
  CAS-BOT-BC52288  Ceanothus thyrsiflorus W. R. Dudley 1899-5-14 s.n. San Mateo Ravine on road from San Andreas to Palacios Comment
  CAS-BOT-BC52296  Ceanothus thyrsiflorus Sue Roberts 1954-5-1 58 San Mateo La Honda, 7 miles east of La Honda Comment
  CAS-BOT-BC52301  Ceanothus thyrsiflorus A. D. E. Elmer 1903-6-1 4603 San Mateo Lake San Andreas Comment
  CAS-BOT-BC52302  Ceanothus thyrsiflorus Barrett Anderson; Peter Rubtzoff 1988-4-22 2667 San Mateo San Bruno Mountain. Radio Road south of Guadalupe Canyon Parkway 365 Comment
  CAS-BOT-BC52311  Ceanothus thyrsiflorus H. A. Borthwick 1920-4-28 s.n. San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC52312  Ceanothus thyrsiflorus J. I. McMurphy 1906-5-8 12 San Mateo Woodside, Santa Cruz Mts. 121 Comment
  JEPS85551  Ceanothus thyrsiflorus Craig Dremann 1986-8-30 322 San Mateo W of La Honda (Hwy 84 (Woodside-La Honda rd), 100 ft W of mile marker 6.68) Comment
  POM136514  Ceanothus thyrsiflorus A. D. E. Elmer 1903-06 4603 San Mateo Lake San Andreas. Comment
  RSA398961  Ceanothus thyrsiflorus Glenn A. Gorelick 1967-4-28 s.n. San Mateo San Bruno Mts, overlooking Daly City ner San Francisco Comment
  SD37640  Ceanothus thyrsiflorus var. griseus Edith A. Purer 1933-5-5 3601 San Mateo Alpine Road Comment
  JROH589  Centaurea calcitrapa John H. Thomas 1974-8-3 17500 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH590  Centaurea calcitrapa John H. Thomas 1974-8-3 17500 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC463564  Centaurea calcitrapa L. R. Abrams and I. L. Wiggins 1930-11-13 174 San Mateo above Crystal Springs Lake Comment
  CAS-BOT-BC274584  Centaurea calcitrapa Evelina Cannon 1896-1-1 s.n. San Mateo San Mateo Comment
  CAS-BOT-BC274595  Centaurea calcitrapa Phillip C. Wheeler 1965-5-17 s.n. San Mateo San Bruno Mountain. Crocker Hills near Cow Palace Comment
  SEINET11860703  Centaurea calcitrapa Unknown 1933-8-13 10506 San Mateo Belmont Comment
  UCD23437  Centaurea cyanus Alan T. Whittemore 1976-5-31 s.n. San Mateo Pescadero Road. About 2 miles east of Pescadero. Comment
  JROH601  Centaurea melitensis John H. Thomas 1973-6-15 16849 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC005474  Centaurium muehlenbergii Randall Morgan 1998-7-28 3329 San Mateo N stretch of Stage Road off Hwy 1 Comment
  SJSU15406  Centaurium tenuiflorum Toni Corelli 2011-8-25 716 a San Mateo Pescadero State Beach and Marsh Natural Preserve, Round Hill Trail at the end of Water Lane Road 12 Comment
  CAS-BOT-BC272819  Centromadia parryi subsp. parryi Lewis S. Rose 1931-8-28 s.n. San Mateo Salada Comment
  SD5599  Centromadia pungens Ulysses S. Grant IV 1925-9-2 San Mateo Burlingame Comment
  CAS-BOT-BC279328  Centromadia pungens subsp. pungens L. R. Abrams 1903-9-26 4017 San Mateo Menlo Park - border of SF Bay Comment
  UC894337  Centromadia pungens subsp. pungens Roxana Stinchfield 1915-9-19 250 San Mateo fields near Salt Marshes; Palo Alto Comment
  POM151596  Cerastium glomeratum A. D. E. Elmer 1903-04 4473 San Mateo San Bruno Hills Comment
  JROH148  Ceratophyllum demersum John H. Thomas 1974-6-30 17464 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3616  Cercocarpus betuloides var. betuloides L. R. Abrams 1916-2-22 7242 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  JROH3623  Cercocarpus betuloides var. betuloides John H. Thomas 1964-4-7 10301 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near edge of Searsville Lake. Comment
  JROH5927  Cercocarpus betuloides var. betuloides L. Fleycher 1986-2-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; east of Searsville Lake. Comment
  UC1191353  Chenopodium berlandieri Malcolm A. Nobs and S. Galen Smith 1949-8-26 1605 San Mateo marshy stream bank about 1 mi s Pigeon Point Comment
  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
  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
  CAS-BOT-BC497723  Chlorogalum pomeridianum Fred Hemphill 1973-5-14 818 San Mateo San Carlos, Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC499310  Chlorogalum pomeridianum var. divaricatum Elizabeth McClintock 1963-6-9 s.n. San Mateo Plants of San Bruno Mountain Comment
  JROH4652  Chlorogalum pomeridianum var. pomeridianum John Hunter Thomas 1983-6-29 22706 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18265  Chlorogalum pomeridianum var. pomeridianum Carl B. Wolf 1927-6-27 458 San Mateo Los Troncos Creek, 2 mi back of Stanford University Comment
  RSA0105084  Chlorogalum purpureum T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3519 San Mateo Central Coast: Pebble Beach State Beach Bay, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay. 11 Comment
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Aug 30 2018
  SEINET4182874  Chorizanthe cuspidata A. A. Heller 1906-6-8 8383 San Mateo Near Ocean View, San Francisco Comment
  CAS-BOT-BC191591  Chorizanthe cuspidata var. cuspidata Elizabeth McClintock 1965-6-13 s.n. San Mateo Colma Canyon. San Bruno Mountain Comment
  CAS-BOT-BC191596  Chorizanthe cuspidata var. cuspidata Elizabeth McClintock; Paul Reeberg 1988-6-7 s.n. San Mateo lower Colma Canyon. San Bruno Mountains Comment
  UC162391  Chorizanthe cuspidata var. cuspidata A. A. Heller 1906-6-8 8383 San Mateo near Ocean View, San Francisco; near Ocean View, San Francisco Comment
  POM270420  Chrysolepis chrysophylla Lyman Benson 1932-7-25 3953 San Mateo Kings Mt. above Woodside; San Francisquito Cr. watershed. 305 Comment
  RSA18289  Chrysolepis chrysophylla Carl B. Wolf 1927-6-21 428 San Mateo East slope of Kings Mt. Comment
  SBBG39512  Chrysolepis chrysophylla L. S. Rose 1970-7-15 San Mateo Kings Mtn 914 Comment
  UCD166158  Chrysolepis chrysophylla Jack Major; M. Forde and S. Bamberg 1962-4-3 742 San Mateo Near Ano Nuevo Point. (Exact location unknown. Coordinates estimated by label maker.) Comment
  JROH2589  Cicendia quadrangularis John Hunter Thomas 1982-4-30 20883 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC285237  Cichorium intybus Cherie Wetzel 1969-6-20 862 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CDA20522  Cirsium brevistylum E. Finley 2005-4-21 PDR 1365078 San Mateo San Francisco Bay Area; Bean Hollow Rd, Pescadero. 0 Comment
  CAS-BOT-BC100939  Cirsium fontinale var. fontinale John Thomas Howell 1939-6-16 14743 San Mateo Crystal Springs Lake Comment
  UC922267  Cirsium fontinale var. fontinale H. K. Sharsmith 1937-6-3 3952 San Mateo about 3 mi w of San Mateo; Crystal Springs Lake 152 Comment
  RSA0008429  Cirsium fontinale var. fontinale L. S. Rose 1953-6-29 53046 San Mateo 0.5 mile E of Crystal Springs Lake on road to Belmont. Comment
  RSA34005  Cirsium occidentale var. venustum J. Wendell Howe 1930-5-21 s.n. San Mateo Hillside near Alpine Creek Comment
  CAS-BOT-BC280504  Cirsium quercetorum L. R. Abrams 1918-4-30 7065 San Mateo Bayshore Road, San Bruno Hills Comment
  CAS-BOT-BC280518  Cirsium quercetorum John Thomas Howell 1939-6-16 14740 San Mateo Near San Andreas Lake Comment
  CAS-BOT-BC280528  Cirsium quercetorum George Oberlander 1949-7-10 252 San Mateo San Francisco Watershed Reserve. East of Sawyer Ridge Comment
  RSA0070862  Cirsium quercetorum E. B. Copeland 1903-6-7 3316 San Mateo Montara Point. Comment
  UC962069  Cirsium quercetorum E. E. Gilbert 1952-5-23 San Mateo e margin of Crystal Springs Lake Crystal Springs Lake Comment
  JROH640  Cirsium vulgare John Hunter Thomas 1977-6-16 18799 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1211948  Cirsium vulgare Otto T. Solbrig 1958-8-3 2920 San Mateo near road Highway 5; Crystal Spring Lake 30 Comment
  CAS-BOT-BC285870  Cirsium vulgare Ned Cahill 1975-1-18 398 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC285871  Cirsium vulgare Elizabeth McClintock 1967-9-24 s.n. San Mateo San Bruno Mountain. Crocker Avenue Comment
  HSC24013  Cirsium vulgare Mary Katherine Wicksten 1971-6-30 142 San Mateo Huddart Park, by horse ring Comment
  SJSU15228  Clarkia amoena subsp. whitneyi Toni Corelli 2012-7-12 804 San Mateo Wavecrest, north of Redondo Road, west of Highway 1 in Half Moon Bay 24 Comment
  JEPS90013  Clarkia purpurea subsp. purpurea Dean W. Taylor 1988-4-29 9589 San Mateo San Bruno Mountain, along Guadalupe Canyon Parkway, in the right-of-way of easternmost set of PG&E high-voltage powerlines crossing the mountain San Bruno Mountain; Santa Cruz Mountains, San Bruno Mountain 371 Comment
  CAS-BOT-BC163962  Clarkia purpurea subsp. quadrivulnera A. A. Heller 1906-6-8 8382 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks Comment
  JROH3005  Clarkia purpurea subsp. quadrivulnera John Hunter Thomas 1981-5-5 20537 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1536827  Clarkia purpurea subsp. quadrivulnera Gordon H. True Jr. 1936-6-14 504 San Mateo canyon s Salada Beach 304 Comment
  CAS-BOT-BC163978  Clarkia purpurea subsp. quadrivulnera Elizabeth McClintock; Phillip Wheeler 1967-5-14 s.n. San Mateo East side of mountain, above Harold Ave., Brisbane. Grassy slope above Philip Wheeler's house Comment
  CAS-BOT-BC164564  Clarkia purpurea subsp. viminea Ned Cahill 1974-4-29 208 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC165156  Clarkia rubicunda Peter H. Raven 1957-6-24 10962 San Mateo Along State Highway 1, just south of Linda Mar Comment
  CAS-BOT-BC165179  Clarkia rubicunda L. R. Abrams 1907-8-26 s.n. San Mateo Kings Mt. Comment
  UC1071885  Clarkia rubicunda H. and M. Lewis 1951-6-28 861 San Mateo neaer Half Moon Bay (1.3 mi n of bridge (35.32C - 3.72) on Highway 1) Comment
  UC1279906  Clarkia rubicunda Peter H. Raven 1957-6-24 10967 San Mateo 2.0 mi n Montara (along State Highway 1) Comment
  UCD169582  Clarkia rubicunda M. K. Wicksten 1971-8-10 224 San Mateo Moss Beach, bluff above Galway Bay. Comment
  CAS-BOT-BC165128  Clarkia rubicunda Rimo Bacigalupi 1955-8-4 5445 San Mateo Just south of Pedro Point, western end of Montara Mtn. Comment
  CAS-BOT-BC165151  Clarkia rubicunda Phillip C. Wheeler 1965-7-8 s.n. San Mateo Quarry Canyon Comment
  CAS-BOT-BC165174  Clarkia rubicunda Peter H. Raven 1957-6-30 11017 San Mateo 3.0 miles from State Highway 5 (Skyline Boulevard) on road to Portola State Park Comment
  RSA18290  Clarkia rubicunda Carl B. Wolf 1927-6-21 427 San Mateo East slope of Kings Mt. Comment
  SJSU11021  Clarkia rubicunda A. H. Lilliberg 1961-5-22 San Mateo by Woodside Heights Rd near Woodside Comment
  UC1094013  Clarkia rubicunda Lewis S. Rose 1957-7-6 57115 San Mateo w San Mateo (Skyline Blvd.) 182 Comment
  UC1279895  Clarkia rubicunda Peter H. Raven 1957-6-20 10954 San Mateo 2.6 mi n Redwood City turnoff (State Highway 5 (Skyline Boulevard)) Comment
  POM32413  Clarkia unguiculata A. D. E. Elmer 1903-06 4293 San Mateo Alpine School House. Comment
  JROH3330  Claytonia exigua subsp. exigua D. D. Davis 1903-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3329  Claytonia exigua subsp. exigua L. R. Abrams 1901-1-27 1101 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC439805  Claytonia perfoliata Ned Cahill 1974-4-29 168 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  RSA276897  Claytonia perfoliata subsp. mexicana J. M. Miller 1977-3-23 590 San Mateo Purisimo Canyon, 1.4 miles E of Hwy 1 on Purisimo Canyon Road. Comment
  POM270613  Clematis Arthur L. Cohen 1935-4-21 611 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  JROH3402  Clematis lasiantha Daniel Cohen 1953-4-11 19 San Mateo Jasper Ridge Biological Preserve, Stanford University. About 1/3 of the way up Jasper Ridge road Comment
  JROH3408  Clematis lasiantha Duncan M. Porter 1961-4-8 748 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC853910  Clematis lasiantha M. N. Paulson 1915-4-2 San Mateo Santa Cruz Mts. Peninsula, Jasper Ridge Comment
  SEINET12099146  Clematis lasiantha J. H. Thomas 1959-1 7666 San Mateo Jasper Ridge, 5 mi SW of Palo Alto 152 Comment
  CAS-BOT-BC92558  Clematis ligusticifolia Josephine D. Randall 1907-6-6 306 San Mateo Santa Cruz Peninsula. Los Trancos Road near Stanford University. Comment
  JROH2877  Clinopodium douglasii John H. Thomas 1973-6-15 16845 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC23891  Clinopodium douglasii Mary Katherine Wicksten 1971-6-16 33 San Mateo Bank at Huddart Park, by Werder Flat Comment
  UCD164461  Clinopodium douglasii Peter Rubtzoff 1977-6-21 9064 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  POM169898  Clintonia andrewsiana A. D. E. Elmer 1903-05 4331 San Mateo Butano Creek 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-BC499373  Clintonia andrewsiana W. R. Bentley 1957-5-11 80 San Mateo State Hwy 1, 2 miles below Pescadero, Alt- sea level Comment
  RSA130676  Collinsia heterophylla Josephine Randall 1907-6-8 384 San Mateo Portola Valley. Santa Cruz Peninsula. 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
  POM15684  Collinsia heterophylla A. D. E. Elmer 1903-04 5046 San Mateo Lake Merced Comment
  CAS-BOT-BC240933  Collinsia multicolor Walter Knight; Irja Knight 1965-4-4 1014 San Mateo San Bruno Mountain. Bitter Cherry Ravine Comment
  SD120833  Collinsia multicolor A. Paul Martin 1957-5-23 San Mateo Northern San mateo County; upper edge of town of Brisbane, southeastern slopes of San Bruno Hills 198 Comment
  UC765656  Collinsia multicolor R. F. Hoover 1941-4-23 4901 San Mateo San Mateo Creek below Crystal Springs Dam Comment
  JROH4018  Collinsia sparsiflora var. collina John H. Thomas 1976-4-2 18078 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4020  Collinsia sparsiflora var. collina Kent E. Holsinger 1981-4-15 342 San Mateo Jasper Ridge Biological Preserve, Stanford University; at the junction of the road to the green shack and the trail up from San Francisquito Creek 160 Comment
  UC138687  Collinsia sparsiflora var. collina C. F. Baker 1902-4-4 444 San Mateo Crystal Springs Lake Comment
  POM279765  Collomia heterophylla Lyman Benson 1931-5-10 2798 San Mateo Kings Mountain 457 Comment
  HSC23940  Collomia heterophylla Mary Katherine Wicksten 1971-7-12 166 San Mateo Huddart Park; beside Archery Trail above Archery Flat Comment
  JROH208  Conium maculatum John H. Thomas 1964-7-3 10442 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road above Searsville Lake Comment
  JROH1849  Convolvulus arvensis John Hunter Thomas 1982-7-2 21056 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  JROH1851  Convolvulus arvensis John Hunter Thomas 1985-5-7 23646 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1854  Convolvulus arvensis John Hunter Thomas 1987-5-19 24298 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0104570  Convolvulus arvensis Sandra M. Namoff 70 San Mateo Half Moon Bay, near Francis Beach State Park, on Kelly Ave SW of intersection with Hwy 1, easement. 18 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
  CAS-BOT-BC288966  Conyza floribunda John Thomas Howell 1975-9-25 51508 San Mateo At summit, San Bruno Mt 396 Comment
  JROH4765  Corallorhiza striata John Hunter Thomas 1985-4-25 23568 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM88156  Cordylanthus maritimus subsp. palustris L. R. Abrams 1900-10 1031 San Mateo Cooley's Landing Comment
  RSA40318  Cordylanthus pilosus subsp. pilosus L. S. Rose 1941-8-9 41362 San Mateo Woodside. 549 Comment
  UC26349  Cordylanthus rigidus subsp. rigidus Alice Eastwood 1896-9-6 San Mateo Crystal Springs Comment
  CAS-BOT-BC101475  Corethrogyne filaginifolia J. H. Thomas 1958-6-11 7221 San Mateo About 4.3 miles due east of Belmont near Crystal Springs Reservoir 91 Comment
  CAS-BOT-BC210356  Cornus sericea George Oberlander 1950-5-6 897 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon Comment
  CAS-BOT-BC210357  Cornus sericea Margaret A. Barry 1938-5-6 s.n. San Mateo Los Trancos Creek near Coal Mine Ridge Comment
  CDA34067  Cornus sericea D. G. Kelch 2011-3-13 11 .056-B San Mateo Near Half Moon Bay along Capistrano Creek. Comment
  SEINET3407584 Image available Cornus sericea Lewis S. Rose 1939-5-5 39094 San Mateo San Mateo Canyon. 46 Comment
  JROH1865  Cornus sericea subsp. sericea John H. Thomas 1967-5-31 12933 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1871  Cornus sericea subsp. sericea John Hunter Thomas 1981-7-24 20731 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1876  Cornus sericea subsp. sericea John Hunter Thomas 1985-4-25 23554 San Mateo Jasper Ridge Biological Preserve, Stanford University; causeway Comment
  UC1543084  Coronopus didymus Donald G. Nelson 1940-7-7 695 San Mateo on road from Half Moon Bay to San Mateo (along Pilarcitos Creek, near Pilarcitos Creek Bridge, where creek forks northward); Pilarcitos Creek 76 Comment
  CAS-BOT-BC180278  Corylus cornuta subsp. californica Phillip Wheeler 1965-6-7 s.n. San Mateo Lower Owls Canyon ridge. San Bruno Mountain Comment
  CAS-BOT-BC180375  Corylus cornuta subsp. californica Walter Knight; Irja Knight 1964-9-2 61 San Mateo On Mouth of Colma Canyon. San Bruno Mountain Comment
  CAS-BOT-BC180363  Corylus cornuta subsp. californica W. R. Dudley 1896-2-15 s.n. San Mateo Alpine Road t Black Mt. Santa Cruz Peninsula Comment
  UCR64445  Corylus cornuta var. californica David D. Keck 1932-2-12 1362 San Mateo La Honda road, east slope of Coast Range above Searsville Lake 305 Comment
  CAS-BOT-BC453503  Cotoneaster lacteus Elizabeth McClintock; Paul Reeberg 1988-4-26 s.n. San Mateo Colma Canyon; San Bruno Mountains Comment
  CAS-BOT-BC141553  Cotoneaster pannosus Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo Crocker Avenue near Guadalupe Road - San Bruno Mountain Comment
  RSA101041  Cotula coronopifolia G. Oberlander 1950-5-6 933 San Mateo Marsh, north boundary, San Francisco Watershed Reserve Comment
  RSA6409  Cotula coronopifolia D. D. Keck 1932-3-24 1403 San Mateo Redwood City, at border of San Francisco Bay. Comment
  UC1119273  Cotula coronopifolia G. E. Sindel 1935-7-25 313 San Mateo mouth Pescadero Creek Comment
  CAS-BOT-BC427608  Crassula aquatica Peter Rubtzoff 1965-10-19 5663 San Mateo Margin of Pilarcitos Lake Comment
  CAS-BOT-BC427832  Crassula connata John H. Thomas 1961-5-7 9260 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  JEPS121548  Crassula connata Adam C. Schneider with C. Matt Guilliams 2013-3-9 26 San Mateo Crystal Springs Reservoir Comment
  JROH1889  Crassula connata John Hunter Thomas 1982-5-23 20813 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1890  Crassula connata John Hunter Thomas 1985-4-10 23516 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5867  Crassula connata Ruth Porter 1981-3-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. In Fire Rd F before Area C serpentine 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
  JROH3658  Crataegus monogyna Carol Zabel 1989-4-19 10 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near lake, south side. Half way between Trail 13 causeway bridge and old middle lake boat landing. Comment
  CAS-BOT-BC291510  Crepis capillaris Josephine D. Randall 1907-6-29 66 San Mateo Portola Road, Santa Cruz Peninsula Comment
  CAS-BOT-BC290924  Crepis vesicaria John Thomas Howell 1956-5-1 31316 San Mateo Just s. of Woodside on road to Searsville Comment
  JROH665  Crepis vesicaria subsp. taraxacifolia John H. Thomas 1962-6-10 9910 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge Comment
  JROH667  Crepis vesicaria subsp. taraxacifolia John H. Thomas 1967-6-1 12962 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA152117  Crocosmia X crocosmiiflora John H. Thomas 1961-8-27 9700 San Mateo Western end of San Bruno Mountain 244 Comment
  JROH1959  Croton setiger John H. Thomas 1974-10-26 17631 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1960  Croton setiger John Hunter Thomas 1983-7-20 22895 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC007737  Cryptantha leiocarpa Becky Hendricks 2012-5-15 s.n. San Mateo Ano Nuevo State Park Comment
  JROH1364  Cryptantha micromeres Oz Garton 1968-5-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1375  Cryptantha micromeres D. E. Breedlove 1971-5-11 19331 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Pinon Road along fence Comment
  UC78697  Cryptantha torreyana T. S. Brandegee 1890-5-22 San Mateo La Honda Comment
Read comments
Feb 3 2010
  SEINET3863390 Image available Cupressus macrocarpa K. Allred 1975-1-3 1270 San Mateo Half Moon Bay along Hwy 101 near Dune Beach.; 0 Comment
  HSC23885  Cuscuta subinclusa Mary Katherine Wicksten 1971-7-2 152 San Mateo Huddart Park, Kings Mtn. Rd. above Miwok Area Comment
  CDA5329  Cyclospermum leptophyllum J. T. Howell 1975-9-13 51507 San Mateo Hillside Street just west of El Camino, Burlingame. 0 Comment
  CAS-BOT-BC287329  Cynara cardunculus J. H. Thomas 1958-10-21 7487 San Mateo Near intersection of Bayshore Highway and Main St, Redwood City, near slough Comment
  JROH5007  Cynodon dactylon John Hunter Thomas 1988-6-6 24512 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC23980  Cynoglossum grande Mary Katherine Wicksten 1971-7-2 149 San Mateo Huddart Park, Miwok Flat Comment
  UCSB18697  Cynoglossum grande Hutchinson, Sandra 1964-3-24 San Mateo Swayer Camp Road, 0.3-0.8 mile from Skyline Blvd., the entrance off millbrae Ave., Crystal Springs area 106 Comment
  JROH4380  Cyperus eragrostis John Hunter Thomas 1981-5-14 20577 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET7581670 Image available Cyperus eragrostis Lewis S. Rose 1965-9-20 65107 San Mateo Trousdale Dr & California Dr. 9 Comment
  JROH4402  Cyperus erythrorhizos Toni Corelli 2008-10-1 347 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake. 103 Comment
  JROH5716  Cyperus erythrorhizos John Rawlings 2015-9-22 1640 San Mateo Jasper Ridge Biological Preserve, Stanford University. In mud of Corte Madera Creek delta near open water 104 Comment
  RSA131973  Cytisus monspessulanus John H. Thomas 1960-4-22 8594 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  CAS-BOT-BC189819  Dactylis glomerata W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of Sneath Ranch, vicinity of Baden. Comment
  CDA31639  Danthonia californica Wm. Davis 1958-6-5 San Mateo San Bruno, San Bruno Pk. 0 Comment
  LA11231  Danthonia californica D. Keck; 1932-5-6 1479 San Mateo W of Millbrae Highlands 50.0 Comment
  SJSU15928  Danthonia californica John Rawlings, Toni Corelli 2016-4-29 1761 San Mateo Cascade Field, north and south of Cascade Cr. Trail, Ano Nuevo State Park 21 Comment
  JROH232  Daucus pusillus John Hunter Thomas 1991-5-2 25020 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS30900  Deinandra corymbosa J. H. Thomas 1959-8-16 8067 San Mateo about 2 mi n of Pigeon Point 15 Comment
  UC419710  Deinandra corymbosa Mrs. H. P. Bracelin 1930-10-26 131 San Mateo between Half Moon Bay and Santa Cruz (s of Pescadero, Ocran Road) Comment
  UC89137  Deinandra corymbosa K. Brandegee 1889-5-1 San Mateo Milbrae Comment
  UC222682  Deinandra corymbosa H. M. Hall 1915-8-28 10112 San Mateo north of San Bruno Comment
  CAS-BOT-BC299202  Deinandra corymbosa subsp. corymbosa James I. McMurphy 1907-8-6 s.n. San Mateo Between Woodside and Crystal Springs Comment
  CAS-BOT-BC300004  Deinandra lobbii Josephine D. Randall 1907-11-3 s.n. San Mateo Los Trancos Road near Standford University, Santa Cruz Peninsula Comment
  UC9238  Delphinium Alice Eastwood May 1896 San Mateo Crystal Springs Comment
  CAS-BOT-BC389749  Delphinium M. Danielson 1967-4-30 s.n. San Mateo Old road above Crystal Springs Rd. on S.F. Watershed lands Comment
  HSC25037  Delphinium californicum L. S. Rose 1965-5-3 65058 San Mateo San Bruno Mtns., Colma Canyon 61 Comment
  UC311529  Delphinium californicum A. D. E. Elmer July 1903 4548 San Mateo Pilarcitos Stone Dam Comment
  CAS-BOT-BC9210  Delphinium californicum subsp. californicum Elizabeth McClintock 1965-6-13 s.n. San Mateo Colma Canyon, San Bruno Mountains Comment
  JROH3433  Delphinium californicum subsp. californicum John H. Thomas 1973-6-10 16811 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC9211  Delphinium californicum subsp. californicum J. H. Thomas 1960-6-1 8772 San Mateo Near dam along edge of Searsville Lake Comment
  CAS-BOT-BC9235  Delphinium decorum Elizabeth McClintock 1965-4-25 s.n. San Mateo San Bruno Mountain, Owl's canyon Comment
  CAS-BOT-BC9245  Delphinium decorum W. R. Dudley 1900-3-17 s.n. San Mateo South side of summit of Montara Mountain Comment
  CAS-BOT-BC10282  Delphinium hesperium Herbert L. Mason 1931-7-14 s.n. San Mateo Pescadero Creek, La Honda road Comment
  UC136329  Delphinium nudicaule C. F. Baker 1902-5-10 795 San Mateo along banks King's Mt. Comment
  JROH3457  Delphinium patens subsp. patens John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC7892  Delphinium variegatum H. Paul Arnaud 1941-5-3 s.n. San Mateo Jefferson Avenue, Redwood City Comment
  SEINET12099656  Delphinium variegatum M. T. Doutt 1931-1 s.n. San Mateo Skyline Blvd, W of Hillbrae Comment
  SJSU3467  Delphinium variegatum Daulton Kohler 1963-4-8 21 San Mateo Black Mt Rd, Hillsborough, 5 mi NW of San Mateo Comment
  SEINET10536059 Image available Delphinium variegatum subsp. apiculatum David D. Keck 1933-5-11 Keck 2309 San Mateo Crystal Springs Lake. Common on rocky ground on open slopes about east side of lake. Comment
  JEPS48647  Dendromecon rigida Elsa Kraeger 1926-2-21 San Mateo along roadside n La Honda 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-BC192597  Deschampsia cespitosa subsp. holciformis Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Crocker Hills Comment
  JROH5052  Deschampsia danthonioides John Hunter Thomas 1986-4-30 23983 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5058  Deschampsia elongata H. L. Mason 1921-5-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5674  Deschampsia elongata John Rawlings 2014-6-10 1276 San Mateo Jasper Ridge Biological Preserve, Stanford University; ecotone between dominant Salix exigua on sandy lake shore and Typha angustifolia in drying Searsville lake bed, 50 m south of the boat landing and old lab. 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-BC500893  Dichelostemma capitatum Fred Hemphill 1973-5-6 777 San Mateo San Carlos, Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  SEINET12044684  Dichelostemma capitatum R. S. Ferris 1921-1 2149 San Mateo San Bruno Mt. 183 Comment
  JROH4658  Dichelostemma capitatum subsp. capitatum John H. Thomas 1975-5-2 17856 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR156574  Dichelostemma capitatum subsp. capitatum P. W. Rundel 1962-4-15 1030 San Mateo San Francisco Bay Region, La Canada Rd., 1 mi N of Pulgas Water Temple [near Upper Crystal Springs Reservoir] 122 Comment
  UCSB17658  Dichelostemma capitatum subsp. capitatum Schulte, John 1963-4-14 San Mateo Jasper Ridge 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  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
  RSA184844  Digitaria sanguinalis L. S. Rose 1965-9-20 65108 San Mateo Burlingame, Trousdale Dr. and California Dr. 9 Comment
  CAS-BOT-BC150453  Diplacus aurantiacus Ned Cahill 1974-4-30 229 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC121859  Dirca occidentalis Lewis S. Rose 1933-6-9 33222 San Mateo San Andreas Lake Comment
  JROH4199  Dirca occidentalis John H. Thomas 1960-5-1 8537 San Mateo Jasper Ridge Biological Preserve, Stanford University. This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  JROH4201  Dirca occidentalis John H. Thomas 1968-2-11 14144 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4204  Dirca occidentalis John H. Thomas 1970-1-1 15496 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4206  Dirca occidentalis D. E. Breedlove 1971-5-11 19336 San Mateo Jasper Ridge Biological Preserve, Stanford University. This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  SBBG26820  Dirca occidentalis L. S. Rose 1939-4-12 39060 San Mateo Crystal Springs Lake 152 Comment
  SJSU647  Dirca occidentalis S. R. Piazza 1941-3-2 San Mateo near S side Searsville L Comment
  POM196567  Disporum smithii W. R. Dudley 1896-4-17 s.n. San Mateo By road beyond La Honda Summit. Comment
  SJSU16012  Distichlis spicata John Rawlings, Ken Hickman 2016-5-26 1814 San Mateo Serpentine seep area (Fountain thistle seep) up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  UC38050  Distichlis spicata J. Burtt Davy 1893-6-17 San Mateo Belmont Comment
  CAS-BOT-BC389755  Dodecatheon hendersonii J. Nieri 1969-2-26 s.n. San Mateo Hillsborough Comment
  JEPS9541  Dodecatheon hendersonii Ivar Tidestrom 1894-3-22 San Mateo Comment
  JROH1508  Draba verna John Hunter Thomas 1981-4-4 20256 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam in road Comment
  POM267960  Drymocallis glandulosa var. wrangelliana Jens Clausen 1941-7-1 1872 San Mateo Summit of Montara Mtn 274 Comment
  CAS-BOT-BC143407  Drymocallis glandulosa var. wrangelliana Elizabeth McClintock 1972-4-23 s.n. San Mateo Above Fern Rock Comment
  CAS-BOT-BC67881  Dryopteris arguta G. Isenberg 1971-12-1 s.n. San Mateo Butano Creek Comment
  CAS-BOT-BC67882  Dryopteris arguta C. F. Baker 1902-1-15 320 San Mateo West side King's Mountain Comment
  JROH25  Dryopteris arguta John H. Thomas 1970-1-1 15495 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH30  Dryopteris arguta Lawrence J. Winship 1974-11-2 6 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH37  Dryopteris arguta John Hunter Thomas 1980-11-12 20162 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH4306  Echinodorus berteroi John Hunter Thomas 1979-9-9 19723 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of Searsville Lake Comment
  CDA5627  Echium pininana T. C. Fuller 1967-8-23 16296 San Mateo North side of road to Crystal Springs, 1.2 miles east of Highway 1 at Half Moon Bay. 0 Comment
  UCD61202  Ehrharta erecta Robert E. Preston 2004-6-10 2252 San Mateo Ca. 8 mi NW of Boulder Creek, in Pescadero Creek watershed. 234 Comment
  CAS-BOT-BC112955  Eleocharis macrostachya George Thomas Oberlander 1950-5-6 922 San Mateo Marsh, San Andreas Lake. Comment
  UC1811  Eleocharis macrostachya J. Burtt Davy 1893-6-21 764 San Mateo Lake San Andreas Comment
  JROH5115  Elymus X hansenii D. E. Breedlove 1971-5-31 19368 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JEPS100765  Elymus californicus Dean W. Taylor 2000-6-12 17464 San Mateo Montara Mountain, Scarper Peak, western slope of the peak near the summit 502 Comment
  JEPS83040  Elymus californicus Roy E. Buck, Randall A. Morgan, James A. West 1983-7-15 429 San Mateo near crest of Cahill Ridge (w of gravel road, 0.7 mi nw of gate and 3.3 km nnw of intersection of Cal Hwys 35 and 92, along Cahill Ridge to above Pilarcitos Lake); San Francisco Watershed Reserve 327 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-BC203688  Elymus glaucus subsp. glaucus John H. Thomas 1961-5-7 9255 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH5102  Elymus glaucus subsp. glaucus John H. Thomas 1967-6-1 12951 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5108  Elymus glaucus subsp. glaucus John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5963  Elymus glaucus subsp. glaucus John Rawlings 2017-5-24 2083 San Mateo Jasper Ridge Biological Preserve, Stanford University. SE corner of Sun Field Station along paved vehicle road to Sun Field Station loading zone 118 Comment
  RSA101004  Elymus multisetus G. Oberlander 1950-7-15 1015 San Mateo north of San Andreas Lake, San Francisco Watershed Reserve Comment
  SJSU15954  Elymus multisetus John Rawlings, Ken Hickman 2016-5-26 1831 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
  CDA2047  Elytrigia repens Bruce Martin Aug 1949 San Mateo Coastal; Half Moon Bay, near San Francisco (about 30 mi. So.) 0 Comment
  RSA176590  Epilobium brachycarpum John H. Thomas 1961-8-27 9696 San Mateo Colma; open sandy field near intersection of El Camino Real and F Street 46 Comment
Read comments
Jul 12 2015
  RSA184928  Epilobium brachycarpum L. S. Rose 1966-8-6 66077 San Mateo San Bruno Mountain, head of Colma Canyon 213 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
  UC942859  Epilobium canum subsp. canum Lewis S. Rose 1949-9-11 49178 San Mateo Skyline Blvd. 2 mi w Crystal Springs Lake Comment
  UCD105431  Epilobium canum subsp. canum Lewis S. Rose 1965-9-4 65099 San Mateo Skyline Blvd. and Half Moon Bay Road, Cahill Ridge. 243 Comment
  JROH3049  Epilobium ciliatum subsp. ciliatum John H. Thomas 1970-7-5 15659 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3051  Epilobium ciliatum subsp. ciliatum John H. Thomas 1976-10-16 18424 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  JROH3054  Epilobium ciliatum subsp. ciliatum John Hunter Thomas 1981-7-12 20689 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat dock Comment
  JROH3056  Epilobium ciliatum subsp. ciliatum John Rawlings 2004-7-4 0924 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek near Dennis Martin site 71 Comment
  SD38385  Epilobium ciliatum subsp. watsonii Edith A. Purer 1933-7-27 5340 San Mateo High stabilized sand dunes, Pigeon Point. Comment
  UC873365  Epilobium ciliatum subsp. watsonii Alice Eastwood 1912-6-3 215 San Mateo Granada Comment
  UC35409  Epilobium foliosum E. R. Drew 1888-4-12 San Mateo San Pedro Ranch Comment
  JROH3074  Epilobium torreyi John H. Thomas 1967-5-31 12923 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389679  Epipactis gigantea Mary Wicksten 1968-7-6 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  UCR253354  Equisetum A. C. Sanders 2014-8-3 41236 San Mateo San Francisco Bay, South San Francisco, San Francisco Bay Trail in vicinity of S Airport Drive, Utah Ave., and Haskins Way, between Hwy 101 and San Francisco Bay 6 Comment
  CAS-BOT-BC166768  Equisetum arvense Peter Rubtzoff 1978-4-2 9153 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH56  Equisetum arvense John Hunter Thomas 1982-7-2 21049 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing Comment
  POM281831  Equisetum arvense Lyman Benson 1930-6-14 2157 San Mateo La Honda, Santa Cruz Mtn range. Redwoods. 244 Comment
  UCR279844  Equisetum arvense Peter Rubtzoff 1976-3-14 8444 San Mateo San Francisco Bay Region, 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 220 Comment
  UCD164092  Equisetum arvense Peter Rubtzoff 1978-4-2 9153 San Mateo San Bruno Mountains.'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC384629  Equisetum telmateia subsp. braunii R. D. Hennessey 1964-4-26 69 San Mateo Area in which Pilarcitos Creek empties into the ocean Comment
  SEINET11613894  Equisetum telmateia subsp. braunii Unknown 1932-1 8935 San Mateo La Honda Road to Sky Line Drive Comment
  POM281823  Equisetum telmateia var. braunii Lyman Benson 1930-5-3 2106 San Mateo Above Woodside, Mt. Range: Santa Cruz 244 Comment
  POM9508  Equisetum telmateia var. braunii C. F. Baker 1902-3-18 324 San Mateo West side King s Mountain. Comment
  RSA0051549  Equisetum telmateia var. braunii W. M. Arbaugh 1968-4-10 256 San Mateo Butano State Park. Comment
  RSA131968  Equisetum telmateia var. braunii John H. Thomas 1950-3-5 1295 San Mateo About 5 miles from Pescadero toward La Honda along Hwy. 152 Comment
  JROH5143  Eragrostis pectinacea var. pectinacea W. Lennihan 1980-11-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta in Searsville Lake (formed by Corte Madera Creek). Comment
  CAS-BOT-BC299883  Erechtites glomeratus Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  CDA4539  Erechtites minimus P. Arnaud 1958-7-13 839 -58 San Mateo San Mateo County Memorial Park. 0 Comment
  RSA124757  Eremocarpus setiger John H. Thomas 1958-11-22 7508 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  JROH5711  Eriastrum abramsii John Rawlings 2015-5-10 1524 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 14 near its terminus with Rd. E. 113 Comment
  JROH650  Erigeron canadensis John H. Thomas 1976-10-16 18399 San Mateo Jasper Ridge Biological Preserve, Stanford University; now dry delta in Searsville Lake at the mouth of Corte de Madera Creek Comment
  CAS-BOT-BC300611  Erigeron foliosus var. franciscensis W. R. Dudley 1895-6-14 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of ridge near Searsville dam, Portola Valley Comment
  CHSC27893  Erigeron glaucus Susan Perkins 1978-3-24 10 San Mateo San Gregorio Beach, Jct Hwys 1 and 84, 9 mi w of La Honda. 30 yds s of San Gregorio Creek. 4 Comment
  UCR240776  Erigeron glaucus T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3521 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  CAS-BOT-BC295075  Erigeron glaucus Daniel Cohen 1953-5-9 91 San Mateo Between Pescadero and San Gregorio Comment
  CAS-BOT-BC300246  Erigeron reductus var. angustatus John Thomas Howell 1930-11-9 s.n. San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC216243  Eriodictyon californicum Josephine D. Randall 1907-6-29 164 San Mateo King's Mt. Road, Santa Cruz Peninsula Comment
  JROH2715  Eriodictyon californicum Daniel Cohen 1953-4-11 24 San Mateo Jasper Ridge Biological Preserve, Stanford University; on west side of Jasper Ridge Comment
  SEINET6744709 Image available Eriodictyon californicum L. S. Rose 1941-7-2 41288 San Mateo Kings Mountain, California. Comment
  SEINET12271679  Eriodictyon californicum J. H. Thomas 1959-1 7667 San Mateo Jasper Ridge, ca 5 mi SW of Palo Alto 152 Comment
  RSA766408  Eriogonum caninum Delzie Demaree 1933-5-25 10514 San Mateo Sky Line drive Comment
  JEPS111098  Eriogonum gracile Zoe Ellis Chandik 1992-7-14 92 -5 San Mateo on east side of Hwy 280, 0.3 miles north of Woodside Road Comment
  RSA17962  Eriogonum gracile var. gracile Carl B. Wolf 1927-8-15 718 San Mateo Jasper Ridge near Searsville Lake Comment
  JEPS56786  Eriogonum latifolium William S. Cooper 1925-5-28 10 San Mateo Salada Comment
  RSA18452  Eriogonum latifolium Carl B. Wolf 1927-6-29 555 San Mateo South of Pebble Beach near Pescadero. Comment
  RSA18467  Eriogonum latifolium Carl B. Wolf 1927-6-29 541 San Mateo South of Pebble Beach near Pescadero. Comment
  SD38689  Eriogonum latifolium Edith A. Purer 1933-7-27 5370 San Mateo Sand dunes, rwo miles south of Pigeon Point Comment
  SJSU15814  Eriogonum latifolium John Rawlings, Toni Corelli 2016-5-13 1897 San Mateo Bean Hollow State Beach south bluff above beach 11 Comment
  CAS-BOT-BC251998  Eriogonum latifolium R. S. Ferris 1917-10-21 730 San Mateo ocean cliff - Moss Beach Comment
  RSA162485  Eriogonum latifolium E. K. Balls 1963-5-22 12068 San Mateo 12.2 miles south from turn off to San Gregorio, State Highway #1 6 Comment
  RSA523299  Eriogonum latifolium Gordon H. True Jr. 1936-6-7 486 San Mateo Cove 2 miles south of Pescadero 15 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
  UCSC009195  Eriogonum latifolium Randall Morgan 2013-5-24 5531 San Mateo On steep, ocean-facing slope around 1+ mile inland, above upper Lake Lucerne Comment
  CAS-BOT-BC266072  Eriogonum luteolum A. D. E. Elmer 1903-6-1 4309 San Mateo Belmont 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
  JROH3240  Eriogonum nudum var. auriculatum J. H. Thomas 1962-11-4 10013 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Westridge end. Comment
  POM165061  Eriogonum nudum var. auriculatum A. D. E. Elmer 1903-06 4311 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC269003  Eriogonum nudum var. auriculatum Margaret A. Barry 1938-6-22 171 San Mateo On Coal Mine Ridge Comment
  RSA766375  Eriogonum nudum var. auriculatum D. D. Keck 1931-10-5 1278 San Mateo Between Woodside and Crystal Springs Lake. Comment
  CAS-BOT-BC304085  Eriophyllum confertiflorum John H. Thomas 1967-5-2 12807 San Mateo San Bruno Mt. About 0.25 mile up Market St from new school in canyon Comment
  JROH706  Eriophyllum confertiflorum var. confertiflorum John Hunter Thomas 1977-6-16 18776 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH715  Eriophyllum confertiflorum var. confertiflorum John Hunter Thomas 1988-6-2 24508 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH717  Eriophyllum confertiflorum var. confertiflorum John Hunter Thomas 1992-5-5 25210 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC301256  Eriophyllum lanatum var. arachnoideum Peter H. Raven 1957-6-24 10963 San Mateo Just south of Linda Mar Comment
  CAS-BOT-BC301257  Eriophyllum lanatum var. arachnoideum D. E. Breedlove 1974-5-13 36217 San Mateo San Pedro Valley Park, Pacifica 152 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
  POM49712  Eriophyllum lanatum var. arachnoideum L. R. Abrams 1902-5-17 2472 San Mateo Kings Mountain Comment
  RSA116759  Eriophyllum lanatum var. arachnoideum W. R. Dudley 1894-7-17 s.n. San Mateo By Bear Gulch Road Comment
  RSA116761  Eriophyllum lanatum var. arachnoideum W. R. Dudley 1893-5-27 s.n. San Mateo Foot of Summit Springs Road, near Woodside. Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC301753  Eriophyllum latilobum A. D. E. Elmer 1903-6-1 4397 San Mateo field near San Francisquito Creek near Stanford University Comment
  UC1080175  Eriophyllum latilobum Sherwin Carlquist 1952-4-26 305 San Mateo 1 mi w on San Mateo-Half Moon Bay Road San Mateo Comment
  CAS-BOT-BC301976  Eriophyllum staechadifolium Saichi Kawahara 1968-7-29 461 San Mateo Old Stage Road, south bank of Pomponio Creek 36 Comment
  CAS-BOT-BC301980  Eriophyllum staechadifolium Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  POM204323  Eriophyllum staechadifolium I. L. Wiggins 1929-7-4 3793 San Mateo Pescadero Beach Comment
  UC1118210  Eriophyllum staechadifolium T. Tyrrell 1928-9-26 7 San Mateo 2 mi s San Gregorio; Santa Cruz Quad. 182 Comment
  CAS-BOT-BC301970  Eriophyllum staechadifolium John H. Thomas 1975-1-12 17672 San Mateo Thornton Beach State Park in NW part of county Comment
  CAS-BOT-BC301981  Eriophyllum staechadifolium Ella Dales Cantelow 1940-9-2 3408 San Mateo N. of Davenport Comment
  RSA116669  Eriophyllum staechadifolium W. R. Dudley 1894-3-26 s.n. San Mateo By road from Pescadero to San Gregorio Comment
  UC31755  Eriophyllum staechadifolium Albert Kellogg San Mateo Schoolhouse Station Comment
  CDA5404  Eriophyllum staechadifolium var. artemisiifolium T. R. Haig 1959-6-22 2639 San Mateo Half Moon Bay. 0 Comment
  JROH2601  Erodium botrys John H. Thomas 1975-4-3 17704 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2604  Erodium cicutarium John H. Thomas 1974-4-4 17082 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2606  Erodium cicutarium John H. Thomas 1977-5-14 18612 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12182144  Erodium cicutarium Unknown 1930-1 7322 San Mateo Jaspar Ridge Comment
  POM204324  Eryngium armatum I. L. Wiggins 1929-7-4 3794 San Mateo Pescadero Beach Comment
  JROH239  Eryngium jepsonii John H. Thomas 1974-6-27 17445 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12005811  Erysimum asperum M. T. Doutt 1931-1 240 San Mateo S of San Francisco Comment
  CAS-BOT-BC54509  Erysimum capitatum James McMurphy 1909-5-25 s.n. San Mateo La Honda. Comment
  CAS-BOT-BC54827  Erysimum franciscanum Alice Eastwood 1903-2-8 3237 San Mateo Spring Valley. 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-BC54846  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1938-4-3 807 San Mateo Upper slope of the San Bruno Hills. Comment
  CAS-BOT-BC54866  Erysimum franciscanum G. B. Rossbach 1940-5-24 932 San Mateo San Bruno Hills. Ridge 0.5 to 1 mile southeast of highest peak. 358 Comment
  CAS-BOT-BC54872  Erysimum franciscanum John H. Thomas 1961-5-7 9316 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  RSA530223  Erysimum franciscanum Glenn A. Gorelick 1967-11-10 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco Comment
  SJSU8507  Erysimum franciscanum P. F. Canziani 1979-3-2 San Mateo SW of intersection of Hillside Blvd & Chestnut Ave., San Bruno Mt Comment
  UC1034726  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
  CAS-BOT-BC54859  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-5-12 912 San Mateo Slope of headland above sea, Padro Point. Comment
  PGM188  Erysimum franciscanum Vern Yadon 1968-4-5 San Mateo Pigeon Pt Lighthouse area Highway 1, Pigeon Pt Lighthouse just S of Comment
  CAS-BOT-BC164031  Erythranthe grandis Peter Rubtzoff 1976-6-30 8705 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Westernmost part of the area on a slope across fence Comment
  CAS-BOT-BC403545  Eschscholzia californica H. L. Mason 1922-3-26 s.n. San Mateo Mouth of Gazos Creek Comment
  CAS-BOT-BC403554  Eschscholzia californica W. S. Chandler 1901-3-30 s.n. San Mateo San Mateo Comment
  POM124471  Euonymus occidentalis A. D. E. Elmer 1903-1 317 San Mateo Butano Creek Comment
  RSA100720  Euonymus occidentalis A. D. E. Elmer 1903-1 4317 San Mateo Butano Creek Comment
  RSA116765  Euonymus occidentalis H. L. Mason 1921-1 s.n. San Mateo San Francisquito Creek near Searsville Lake. Comment
  UC17678  Euphorbia crenulata J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Pilarcitos Canyon; Pilarcitos Canyon, Pilarcitos Lake Comment
  JROH1979  Euphorbia spathulata John Hunter Thomas 1981-4-23 20471 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS20288  Eurybia radulina Lewis S. Rose 1955-9-19 55174 San Mateo Skyline Boulevard, 7 mi w of Saratoga 685 Comment
  JROH5919  Eurybia radulina John Hunter Thomas 1981-5-25 20629 San Mateo Jasper Ridge Biological Preserve, Stanford University 88 Comment
  UC1536887  Eurybia radulina G. H. True Jr. 1937-7-31 829 San Mateo near, (Alpine Road near Skyline Blvd.) Skyline Blvd. 182 Comment
  JROH528  Eurybia radulina L. R. Abrams 1916-10-14 6350 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  JROH727  Euthamia occidentalis John H. Thomas 1974-9-19 17600 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bridge Comment
  SEINET10614933  Euthamia occidentalis Delzie Demaree 1933-9-24 Demaree 10531 San Mateo Rolling bay area. Leepsic Junction. P.O. Baden. Comment
  SJSU14659  Fagus sylvatica P. J. Canziani 1979-10-14 San Mateo Washington Park, Burlingame Comment
  UCD98886  Fallopia convolvulus J. D. Skoss 1948-7-25 47 San Mateo San Vicente Canyon near Montara. Comment
  JROH5162  Festuca arundinacea John Hunter Thomas 1988-5-12 24457 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bridge between the two parts of Searsville Lake Comment
  JROH5168  Festuca arundinacea W. Lennihan 1990-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By marsh (also by lab). Comment
  JROH5475  Festuca bromoides John Hunter Thomas 1984-5-3 23334 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5689  Festuca bromoides John Rawlings 2015-2-21 1281 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 4 on north side of Jasper Ridge 167 Comment
  UCSC007754  Festuca bromoides Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC210029  Festuca idahoensis Peter Rubtzoff 1980-5-3 9436 San Mateo San Bruno Mountains. The Edward Preston Lee Memorial Site and vicinity. Comment
  JROH5480  Festuca microstachys Duncan M. Porter 1960-4-22 663 San Mateo Jasper Ridge Biological Preserve, Stanford University. Meadow near crest of N-facing slope above Webb Ranch. Comment
  JROH5499  Festuca myuros Stephen N. Turitzin 1975-5-7 2 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5501  Festuca myuros Stephen N. Turitzin 1975-5-7 3 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5504  Festuca myuros W. Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By parking lot near marsh. 108 Comment
  JROH5506  Festuca octoflora John H. Thomas 1966-4-20 11561 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5283  Festuca perennis John H. Thomas 1973-6-15 16851 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC279053  Festuca rubra Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  SEINET10805323  Foeniculum vulgare Walter H. Lewis 1989-10-31 Lewis 14676 San Mateo Redwood City, Seapark Blvd., past area by San Francisco Bay. Comment
  POM87792  Fragaria californica L. R. Abrams 1902-5-20 2469 San Mateo Kings Mountain Comment
  RSA112397  Fragaria californica W. R. Dudley 1894-7-28 s.n. San Mateo Hill between Pescadero and La Honda, San Mateo County. Comment
  CAS-BOT-BC437028  Fragaria chiloensis A. D. E. Elmer 1903-4-1 4799 San Mateo San Pedro Comment
  JROH3672  Fragaria vesca John Hunter Thomas 1990-4-26 24812 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near redwood grove near Rattlesnake Rock Comment
  CAS-BOT-BC457522  Fragaria vesca subsp. californica Le Roy Abrams 1898-3-1 s.n. San Mateo Kings Mountain Comment
  CAS-BOT-BC457530  Fragaria vesca subsp. californica J. H. Thomas 1949-4-14 281 San Mateo Kings Mountain Comment
  CAS-BOT-BC457531  Fragaria vesca subsp. californica Donald A. Johansen 1933-5-18 709 San Mateo Redwoods along road from Portola to La Honda Comment
  CAS-BOT-BC52677  Frangula californica subsp. californica W. R. Dudley 1899-5-14 s.n. San Mateo Baden Brook hills Comment
  JROH3543  Frangula californica subsp. californica John H. Thomas 1974-9-19 17601 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3577  Frangula californica subsp. californica John Hunter Thomas 1981-2-14 20215 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET6671082 Image available Frankenia grandifolia Lewis S. Rose 1938-1 38230 San Mateo Brisbane 2 Comment
  CAS-BOT-BC211602  Frankenia salina John Hunter Thomas 1949-10-16 1142 San Mateo Along ocean bluff, just north of outlet of San Gregorio Creek 60 Comment
  SD38247  Frankenia salina Edith A. Purer 1933-8-13 5415 San Mateo Near bay, Belmont. Comment
  POM130871  Fraxinus latifolia C. F. Baker 1903-6-30 3355 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC130134  Fritillaria affinis John Hunter Thomas 1954-4-3 3821 San Mateo Along San Gregorio Creek about 1.5 miles west of La Honda 106 Comment
  UC1206468  Fritillaria affinis Le Roy Abrams 1902-4-13 2339 San Mateo Crystal Springs Lake Comment
  UC3641  Fritillaria affinis J. Burtt Davy 1895-4-20 1056 San Mateo Lake Pilarcitos 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-BC130125  Fritillaria affinis Catherine A. Toschi 1963-3-17 63 :55 San Mateo East slope San Bruno Mountains below radio station 213 Comment
  RSA371591  Fritillaria affinis Thomas S. Elias 1987-4-10 10336 San Mateo Along Canyon Road, north of Butano State Park Comment
  SD39120  Fritillaria affinis Marie Cummings 1933-4-11 11 San Mateo Spring Valley Lake. Comment
  SEINET3886766  Fritillaria lanceolata Lois R. O'Brien 1963-3-9 85 San Mateo San Bruno Mountains, on Radio Road 3 miles from Estrada Way.; 0 213 Comment
  CAS-BOT-BC130385  Fritillaria liliacea Marion Gallagher; Gladys L. Smith 1978-6-3 4804 San Mateo Farm Hill above Redwood City Comment
  POM273462  Fritillaria liliacea Lyman Benson 1929-3-16 s.n. San Mateo Crystal Springs Lake, Spring Valley Comment
  JROH3790  Galium murale John H. Thomas 1967-5-12 12882 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM204331  Gamochaeta ustulata I. L. Wiggins 1929-7-4 3772 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  CAS-BOT-BC303464  Gamochaeta ustulata Elizabeth McClintock 1963-6-9 s.n. San Mateo Exposed slopes below top of mountain, San Bruno Mt Comment
  CAS-BOT-BC303469  Gamochaeta ustulata R. E. Frenkel 1964-4-2 415 San Mateo On Spring Valley Ridge Rd, SFWD, at junction of Spring Valley Ridge Rd and Whiting Ridge Rd 347 Comment
  CAS-BOT-BC194568  Garrya elliptica Helen M. Edwards 1917-2-1 s.n. San Mateo Los Trancos Woods Comment
  CAS-BOT-BC194572  Garrya elliptica W. R. Dudley 1895-2-9 s.n. San Mateo On Alpine Road two miles below watering place near Stanford University Comment
  SEINET4041731  Garrya elliptica D. Demaree 1930-1 7312 San Mateo Los Trancos Woods. Comment
  UC1122637  Garrya elliptica G. E. Sindel 1935-8-19 336 San Mateo 3.25 mi n La Honda; Santa Cruz Quad. 426 Comment
  RSA116655  Garrya elliptica Roxana Stinchfield 1914-2-7 13 San Mateo Judge Allens [difficult to read] Road. Comment
  CAS-BOT-BC278663  Gastridium phleoides George Oberlander 1949-6-25 263 San Mateo San Francisco Watershed Reserve Comment
  JROH5183  Gastridium phleoides John H. Thomas 1967-5-31 12920 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5651  Gastridium phleoides John Rawlings 2014-5-23 1226 San Mateo Jasper Ridge Biological Preserve, Stanford University; just up-slope from the Boat Launch (aka Searsville Lab Landing) 104 Comment
  CAS-BOT-BC278713  Gastridium ventricosum Elizabeth McClintock; Paul Reeberg 1989-5-23 s.n. San Mateo San Bruno Mountain. Wax Myrtle Ravine 121 Comment
  RSA112358  Gaultheria shallon H. L. Mason 1921-07 s.n. San Mateo San Mateo County: Pescadero Creek Comment
  CDA5303  Gaura sinuata G. D. Barbe 1974-6-4 1824 San Mateo Middle Fork San Pedro Creek, southeast of Oddstad Boulevard, Linda Mar District. 0 Comment
  CAS-BOT-BC219141  Genista monspessulana T. C. Fuller 1960-4-20 4086 San Mateo roadside, Page Mill Road, 0.5 mi above (SW) Moody Road, Los Altos Hills 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
  CAS-BOT-BC219147  Genista monspessulana Elizabeth McClintock; Philip Wheeler 1967-6-11 s.n. San Mateo San Bruno Mountain. Radio Road in the Eucalyptus area. 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
  JROH2002  Genista monspessulana John Hunter Thomas 1978-5-23 19222 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD227830  Geranium carolinianum G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3738 San Mateo Portola Valley: Golden Hills Rd. along Los Trancos Creek. 106 Comment
  JROH2629  Geranium molle John Hunter Thomas 1978-4-8 19059 C San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2630  Geranium molle John Hunter Thomas 1984-5-3 23335 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC106853  Gilia achilleifolia subsp. achilleifolia C. F. Baker 1902-4-6 467 San Mateo Pacific Coast, Crystal Springs Lake Crystal Springs Lake; Pacific Coast, Crystal Springs Lake Comment
  JROH3164  Gilia clivorum John H. Thomas 1971-4-10 15756 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3166  Gilia clivorum John Hunter Thomas 1981-4-27 20506 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC123797  Gilia mellita Edward Lee Greene 1886-6-23 s.n. San Mateo Belmont Comment
  SEINET3869111  Ginkgo biloba Bill Popin 1988-10-9 44 San Mateo Central Park.; 0 Comment
  SEINET10464411  Githopsis diffusa subsp. robusta Barry 1937-5-15 BARRY s.n. San Mateo Comment
  CAS-BOT-BC303825  Gnaphalium John H. Thomas 1965-4-29 10612 San Mateo San Bruno Mt in N part of county 396 Comment
  SEINET11849355  Gnaphalium chilense M. T. Doutt 1931-1 424 San Mateo Portola Comment
  SEINET3386993 Image available Gnaphalium ramosissimum Lewis S. Rose 1935-8-13 35568 San Mateo Salada, Brushy coastal hills. 30 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
  POM359110  Grindelia D. D. Keck 1932-5-25 1783 San Mateo Hills two miles W of Belmont Comment
  LA203650  Grindelia camporum Ira L. Wiggins; 1929-7-4 3799 San Mateo Pescadero Beach Comment
  RSA136087  Grindelia camporum John H. Thomas 1954-5-28 4233 San Mateo Along Bayshore Hwy about 2 miles S of San Francisco Airport. 0 Comment
  RSA40139  Grindelia camporum L. S. Rose 1948-11-29 48243 San Mateo Mills Field. Comment
  CAS-BOT-BC304538  Grindelia hirsutula John Thomas Howell 1933-5-26 11348 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC304541  Grindelia hirsutula L. R. Abrams 1918-4-30 7064 San Mateo Bayshore Road, San Bruno Hills 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-BC304552  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
  POM57689  Grindelia hirsutula C. F. Baker 1903-4-8 s.n. San Mateo San Andreas Lake Comment
  UC32136  Grindelia hirsutula J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Pilarcitos Canyon; Pilarcitos Lake, Pilarcitos Canyon Comment
  POM216546  Grindelia stricta var. angustifolia D. D. Keck 1931-9-27 1273 San Mateo Dumbarton Bridge. Comment
  POM209880  Grindelia stricta var. platyphylla D. D. Keck 1934-7-7 2943 San Mateo Pigeon Point. Comment
  POM288781  Grindelia stricta var. platyphylla Lyman Benson 1934-7-4 6101 San Mateo Moss Beach; Pacific Ocean watershed 15 Comment
  RSA11899  Guillenia lasiophylla Elmer I. Applegate 1895-5-11 33 San Mateo Stock Farm. Stanford University. Comment
  CAS-BOT-BC282867  Hainardia cylindrica A. G. Vestal 1926-5-1 s.n. San Mateo San Pedro Point Comment
  JROH5202  Hainardia cylindrica John Rawlings 2005-5-30 1007 San Mateo Jasper Ridge Biological Preserve, Stanford University. At back of field station at edge of brick patio. 121 Comment
  OBI4246  Hedera canariensis Carol Wong 1970-3-28 28 San Mateo Emerald Lake, Redwood City. On the side of the lake just after crossing the bridge. Comment
  CAS-BOT-BC158035  Hedera helix Phillip Wheeler; Elizabeth McClintock 1965-6-13 s.n. San Mateo Radion Road near KRON station Comment
  CAS-BOT-BC309543  Helenium puberulum A. D. E. Elmer 1903-7-1 4972 San Mateo Crystal Springs Lake Comment
  JROH843  Helenium puberulum John Hunter Thomas 1982-9-23 21162 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1537048  Helenium puberulum Gordon H. True Jr. 1937-7-23 805 San Mateo along Skyline Blvd. to Salada Beach Road 304 Comment
  UC407001  Helenium puberulum Josephine D. Randall 1907-7-24 San Mateo near Crystal Springs Lake Comment
  CAS-BOT-BC309525  Helenium puberulum Elizabeth McClintock; Paul Reeberg 1988-8-18 s.n. San Mateo San Bruno Mountains. Along Summer Seep Trail 220 Comment
  CAS-BOT-BC309534  Helenium puberulum W. R. Dudley 1895-9-15 s.n. San Mateo Santa Cruz Peninsula. El Corte Madera road Comment
  JEPS35430  Helenium puberulum James G. Daly 239 San Mateo San Gregorio watershed Santa Cruz Mts., San Gregorio Comment
  JROH853  Helianthella californica var. californica John Hunter Thomas 1978-4-20 19081 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
  RSA0012931  Helianthus californicus L. R. Abrams 1902-09 2989 San Mateo Menlo Park. Comment
  JROH1166  Helminthotheca echioides John H. Thomas 1964-11-15 10525 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along road at edge of Searsville Lake. Comment
  UCR80233  Hemizonia congesta L. S. Rose 1964-9-5 64070 San Mateo San Francisco Bay Region, Emerald Lake, west of Redwood City 244 Comment
  CAS-BOT-BC314939  Hemizonia congesta subsp. luzulifolia John H. Thomas 1969-10-19 15480 San Mateo Near Canada College, Redwood City just off of Farm Hill Blvd. Comment
  UC990599  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1910-8-24 San Mateo Corte Madera Creek Comment
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Mar 12 2009
  CAS-BOT-BC314925  Hemizonia congesta subsp. luzulifolia W. R. Dudley 1909-4-27 s.n. San Mateo Crystal Springs Reservoir, 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-BC314943  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-13 10225 San Mateo Near Crystal Springs Lake Comment
  SEINET6205044  Hemizonia corymbosa L. S. Rose 1965-1 65100 San Mateo Skyline Blvd & Halt Moon Bay Rd Comment
  RSA52665  Hemizonia corymbosa subsp. corymbosa I. L. Wiggins 1949-7-2 12199 San Mateo Pescadero Beach. Comment
  RSA185016  Hemizonia pungens subsp. maritima L. S. Rose 1965-9-20 65106 San Mateo Burlingame, Trousdale Dr. and California Dr. 9 Comment
  JROH900  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1991-5-9 25044 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4229  Hesperocnide tenella John H. Thomas 1974-5-19 17384 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS82918  Hesperolinon congestum Roy E. Buck and Randall A. Morgan 1983-6-7 339 San Mateo top of small knoll on w side of CA Hwy 92 near Highway I-280 interchange (just e of Upper Crystal Springs Lake); San Francisco Watershed Reserve 137 Comment
  JROH2922  Hesperolinon micranthum John H. Thomas 1963-5-15 10093 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2928  Hesperolinon micranthum John H. Thomas 1969-6-4 15107 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA151712  Hesperolinon micranthum H. K. Sharsmith 1947-6-3 3975 San Mateo Above Redwood City, outer South Coast Ranges. 152 Comment
  CAS-BOT-BC148466  Heteromeles arbutifolia W. R. Dudley 1904-12-7 s.n. San Mateo East of Baker's Beach - Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC148467  Heteromeles arbutifolia George Oberlander 1949-7-10 281 San Mateo Sweeney Ridge - San Francisco Watershed Reserve Comment
  JROH3678  Heteromeles arbutifolia John H. Thomas 1973-6-10 16814 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0072374  Heteromeles arbutifolia John H. Thomas 1965-12-19 11459 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  UC202810  Heuchera micrantha var. diversifolia A. D. E. Elmer July, 1903 4762 San Mateo Pilarcitos Stone Dam Comment
  RSA0063100  Heuchera micrantha var. hartwegii I. L. Wiggins 1929-7-4 3776 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  SEINET9737076  Heuchera micrantha var. pacifica L. S. Rose 1941-7-2 41289 San Mateo Kings Mountain 600 Comment
  CAS-BOT-BC319635  Hieracium albiflorum W. R. Dudley 1894-7-7 s.n. San Mateo Bear Gulch Road, Santa Cruz Peninsula Comment
  UC768776  Hierochloe occidentalis R. F. Hoover 1939-3-3 3898 San Mateo on La Honda road above Portola Comment
  JROH1533  Hirschfeldia incana John Hunter Thomas 1977-6-16 18794 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0017050  Hoffmannseggia glauca T. S. Brandegee 1889-2-2 s.n. San Mateo San Gregorio Comment
  RSA134378  Hoita orbicularis L. S. Rose 1959-6-24 59031 San Mateo San Mateo, Black Mtn. Rd. near Skyline Blvd. 122 Comment
  CAS-BOT-BC289253  Holcus lanatus Philip Wheeler 1965-6-8 s.n. San Mateo Crocker Industrial Park, San Bruno Mountain Comment
  JROH5208  Holcus lanatus John Hunter Thomas 1977-6-16 18804 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD84879  Holcus mollis Collector Unknown 1966-8-30 s.n. San Mateo San Mateo County. Comment
  CAS-BOT-BC150054  Holodiscus discolor var. discolor Margaret A. Barry 1937-6-24 180 San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC150059  Holodiscus discolor var. discolor Robert Robertson 1954-5-1 110 San Mateo By road 2 miles east of Pescadero 30 Comment
  JROH3693  Holodiscus discolor var. discolor John Hunter Thomas 1978-7-2 19249 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA149153  Hordeum brachyantherum John H. Thomas 1961-5-13 9341 San Mateo Coastal sand dunes at Franklin Point. Comment
  RSA60658  Hordeum brachyantherum I. L. Wiggins 1950-5-20 12352 A San Mateo Pescadero Beach Comment
  SJSU15413  Hordeum brachyantherum subsp. brachyantherum Toni Corelli 2010-5-21 671 San Mateo Pescadero State Beach and Marsh Natural Preserve. North Pond Trail 9 Comment
  SEINET10598954  Hordeum californicum Delzie Demaree 1932-5-16 Demaree 9144 San Mateo Spring Valley Lakes. Comment
  JROH5243  Hordeum marinum subsp. gussoneanum John Hunter Thomas 1981-5-14 20579 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET11678403  Hordeum murinum E. A. Purer 1933-1 5372 San Mateo 2 mi S of Pigeon Point Comment
  CAS-BOT-BC289394  Hordeum murinum subsp. glaucum George Oberlander 1950-4-22 798 San Mateo South boundary, San Francisco Watershed Reserve 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
  UC1537225  Hordeum murinum subsp. leporinum Gordon H. True Jr. 1937-4-3 620 San Mateo Salada Beach Road 182 Comment
  CAS-BOT-BC271362  Hordeum vulgare W. R. Dudley 1896-4-4 s.n. San Mateo Near Crystal Springs Comment
  CAS-BOT-BC536142  Horkelia californica Josephine D. Randall 1907-7-23 338 San Mateo Near Crystal Springs Lake, Santa Cruz Peninsula Comment
  CAS-BOT-BC536150  Horkelia californica Alice Eastwood 1915-6-13 4711 San Mateo Granada Comment
  CAS-BOT-BC536151  Horkelia californica Elizabeth McClintock 1965-6-13 s.n. San Mateo Colma Canyon, San Bruno Mountain Comment
  SEINET5554737  Horkelia californica H. S. Gentry 1931-1 76 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  UC204150  Horkelia cuneata subsp. sericea A. D. E. Elmer April, 1903 5036 San Mateo near Colma (cemeteries) Comment
  CAS-BOT-BC143922  Horkelia cuneata var. sericea W. R. Dudley 1901-5-11 s.n. San Mateo Near Colma Comment
  RSA0064471  Hydrocotyle moschata A. C. Sanders 2014-8-3 41241 San Mateo South San Francisco, Utah Ave. near Harbor Way, north of S.F. Intl. Airport. 4 Comment
  CDA5497  Hydrocotyle moschata E. L. Labadie 1962-3-15 San Mateo Jack Fujiki property, 135 N. Idaho, San Mateo . 0 Comment
Read comments
Aug 7 2014
  UCD160240  Hypericum canariense Christopher Dillis 2015-5-15 3 San Mateo South of Pescadero on Hwy 1 (Cabrillo Hwy), 400 m south of Highway Brewing Company, then east 120 m on unmarked 1-lane dirt road; 10 m southwest of intersection with Old Coast Highway. 200 Comment
  CAS-BOT-BC311392  Hypochaeris glabra John H. Thomas 1958-3-19 7051 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  JROH915  Hypochaeris glabra John H. Thomas 1967-5-10 12859 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD133331  Hypochaeris glabra W. A. Harvey; J. M. Tucker 1948-6-29 1706 San Mateo Beside road to Portola State Park, just west of junction with Highway 5 (Skyline Boulevard). Comment
  CAS-BOT-BC311479  Hypochaeris radicata J. H. Thomas 1949-10-16 1155 San Mateo Just north of outlet of San Gregorio Creek Comment
  JROH937  Hypochaeris radicata John Hunter Thomas 1987-5-5 24239 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH941  Hypochaeris radicata John Hunter Thomas 1989-5-9 24716 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1069670  Hypochaeris radicata N. K. Carlson 1935-6-29 109 San Mateo 1 mi s Pescadero; Santa Cruz Quad. Comment
  CAS-BOT-BC311489  Hypochaeris radicata David D. Keck 1932-5-6 1462 San Mateo Belmont Comment
  JROH935  Hypochaeris radicata John Hunter Thomas 1983-7-7 22821 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM290987  Iris douglasiana Lyman Benson 1930-5-3 2105 San Mateo Above Woodside, Mt. Range: Santa Cruz 244 Comment
  RSA127080  Iris douglasiana John H. Thomas 1959-4-4 7656 San Mateo About 0.7 miles S. of Gazos Creek. About 6.5 miles southward from Pescadero. 46 Comment
  RSA3090  Iris douglasiana Carl B. Wolf 1931-8-21 2332 San Mateo 0.5 mi above east base of La Honda Grade; Santa Cruz Mountains 244 Comment
  RSA366795  Iris douglasiana Russell S. Woglum 1935-5-25 1169 San Mateo Skyline Drive, San Francisco to Big Basin Comment
  SEINET10529078  Iris douglasiana R. D. Sage 1992-1-6 Sage 13394 -1 San Mateo Collected along purisima creek rd trail in purisima creek redwoods open space preserve. 9 Km w woodside. 244 Comment
  SEINET8529508 Image available Iris douglasiana Phyllis Kuehn 1967-5-7 18 San Mateo Skyline Blvd. Comment
  UC143469  Iris douglasiana Alice Eastwood Apr 1898 San Mateo Purissima Comment
  UCD138710  Iris douglasiana Ogden C. Riddle 1941-4-6 65 San Mateo Finney Ridge, near Half Moon Bay. 243 Comment
  CAS-BOT-BC133654  Iris longipetala W. R. Dudley 1894-3-1 s.n. San Mateo Near South San Francisco Comment
  CAS-BOT-BC133670  Iris longipetala Walter Knight; Irja Knight 1964-1-15 508 San Mateo South slope, Colma Canyon Comment
  CAS-BOT-BC133671  Iris longipetala Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Horseshoe Ridge Comment
  CAS-BOT-BC112611  Isolepis cernua John Hunter Thomas 1963-7-19 10181 A San Mateo Ano Nuevo Point. Comment
  CAS-BOT-BC112616  Isolepis cernua J. Clausen 1939-7-1 1745 San Mateo Ano Nuevo Point, in depressions in stabilized dunes. Comment
  JROH2777  Juglans hindsii John Hunter Thomas 1987-4-16 24203 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC008165  Juncus Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC352224  Juncus arcticus var. balticus Peter Rubtzoff; Elizabeth McClintock 1989-8-31 10043 San Mateo San Bruno Mountains, near Willow Pond (located near Saddle Trail), ca. 0.15 miles north of junction with Old Guadalupe Trail. Comment
  JEPS10200  Juncus bufonius var. congestus Rimo Bacigalupi with G. T. Robbins 1954-6-18 4559 San Mateo Point Ano Nuevo Comment
  POM290139  Juncus bufonius var. congestus Lyman Benson 1930-5-26 2145 San Mateo Stanford University. Lake Searsville. 152 Comment
  UC1101043  Juncus bufonius var. congestus Herbert L. Mason 1949-7-7 14030 San Mateo Mouth of Gazos Creek Comment
  UC1101044  Juncus bufonius var. congestus Herbert L. Mason 1949-7-7 14029 San Mateo Mouth of Gazos Creek Comment
  RSA276358  Juncus bufonius var. congestus Jane Turner, Francis M. Ball 1962-7-7 SK&F- 1083 San Mateo Highway 1, ca. 10 miles N of Santa Cruz County line. Comment
  JROH4462  Juncus bufonius var. occidentalis John H. Thomas 1968-3-31 14260 C San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4468  Juncus bufonius var. occidentalis John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR244745  Juncus effusus var. 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 213 Comment
  UC1101030  Juncus hesperius Verne Grant and Herbert L. Mason 1946-8-28 13081 San Mateo n of San Francisco county prison Comment
  UC1601735  Juncus lescurii J. Burtt Davy 1893-6-22 758 San Mateo head of Lake Pilarcitos Lake Pilarcitos Comment
  RSA6313  Juncus occidentalis D. D. Keck 1932-5-6 1468 San Mateo Belmont. Comment
  CAS-BOT-BC173697  Juncus occidentalis Peter Rubtzoff 1978-5-18 9170 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Marshy area northwest of Fog Forest. Comment
  CDA39185  Juncus occidentalis W. Plummer 1974-4-18 s.n. San Mateo Pescadero, Carlene Shade property. 0 Comment
  JROH4502  Juncus patens John Hunter Thomas 1981-7-12 20687 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA132400  Juncus patens John H. Thomas 1959-7-8 8023 San Mateo About 1/2 mile S of Pescadero beach along the coast highway. Comment
  JEPS67130  Juncus phaeocephalus unknown 1925-5-28 2 San Mateo Salada Comment
  CAS-BOT-BC210078  Juncus phaeocephalus Peter Rubtzoff 1980-8-4 9563 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  CAS-BOT-BC210153  Juncus phaeocephalus Peter Rubtzoff 1978-7-8 9227 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC227614  Juncus phaeocephalus Peter Rubtzoff; Elizabeth McClintock; Paul Reeberg 1989-6-3 s.n. San Mateo San Bruno Mountains. Shearwater 22 Comment
  UCD163590  Juncus phaeocephalus var. paniculatus Peter Rubtzoff 1980-8-4 9563 San Mateo San Mateo: San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. 183 Comment
  UCR280169  Juncus phaeocephalus var. paniculatus Peter Rubtzoff 1978-7-8 9226 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
  JROH4508  Juncus xiphioides John H. Thomas 1974-4-25 17195 San Mateo Jasper Ridge Biological Preserve, Stanford University. Top of ridge. Comment
  JROH4515  Juncus xiphioides John Hunter Thomas 1978-5-16 19219 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM289989  Juncus xiphioides Lyman Benson 1937-7-25 8474 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  JROH4039  Kickxia elatine Carol Zabel, Ann Lambrecht 2006-7-26 60 San Mateo Jasper Ridge Biological Preserve, Stanford University; Bear Creek crossing, west side of creek bank Comment
  JROH5268  Koeleria macrantha John H. Thomas 1968-5-22 14454 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD85703  Koeleria macrantha A. A. Beetle 1942-6-11 3594 San Mateo 2 miles north of South San Francisco. Comment
  UCD85838  Koeleria macrantha P. B. Kennedy 1916-5-7 s.n. San Mateo Crocker Estate, Burlingame. Comment
  UCD86030  Koeleria macrantha P. B. Kennedy 1928-5-2 s.n. San Mateo E of Daly City. Comment
  CAS-BOT-BC272319  Lachnagrostis filiformis John Thomas Howell 1954-6-1 s.n. San Mateo Pulgas Water Temple, near southern end of Lower Crystal Springs Reservoir Comment
  JROH951  Lactuca serriola John H. Thomas 1974-6-30 17459 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC340639  Lactuca serriola Ned Cahill 1974-5-13 276 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC340703  Lactuca virosa John Thomas Howell 1954-9-8 30108 San Mateo Skyline Blvd. at San Andreas Lake, 2 miles west of San Bruno Comment
  CAS-BOT-BC341635  Lagophylla ramosissima John Thomas Howell 1926-10-9 2215 San Mateo Lake San Andreas Comment
  JROH5656  Lagophylla ramosissima John Rawlings 2014-5-23 1260 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 15. 190 Comment
  CAS-BOT-BC339065  Lasthenia californica John Thomas Howell 1933-5-26 11347 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC339073  Lasthenia californica A. D. E. Elmer 1903-4-1 4738 San Mateo San Bruno Hills Comment
  CAS-BOT-BC339058  Lasthenia californica Lewis S. Rose 1933-5-3 33141 San Mateo Montara Comment
  JROH970  Lasthenia californica subsp. californica Robert Robertson 1954-4-23 88 San Mateo Jasper Ridge Biological Preserve, Stanford University 170 Comment
  JROH976  Lasthenia californica subsp. californica John Hunter Thomas 1980-5-8 19955 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH980  Lasthenia californica subsp. californica John Hunter Thomas 1988-5-3 24440 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15209  Lasthenia californica subsp. californica Teri Barry 2010-4-23 San Mateo Jasper Ridge Biological Preserve southeast of Trail 9 near the intersection of Road F and Trail 9. 186 Comment
  UC517990  Lasthenia californica subsp. californica Lewis S. Rose 1933-4-30 33128 San Mateo Redwood City Comment
  UC30457  Lasthenia californica subsp. californica J. Burtt Davy 1897-4-1 San Mateo Ocean View Comment
  CAS-BOT-BC324426  Lasthenia californica subsp. macrantha Adele Lewis Grant 1917-5-6 939 San Mateo Pescadero - Pebble Beach Comment
  CAS-BOT-BC324427  Lasthenia californica subsp. macrantha W. R. Dudley 1896-4-10 s.n. San Mateo Pebble Beach Pasture, Pescadero, Santa Cruz Peninsula Comment
  CAS-BOT-BC355545  Lasthenia glabrata var. glabrata Roxana S. Ferris 1927-4-28 6866 San Mateo Redwood City Comment
  CAS-BOT-BC360403  Lasthenia glabrata var. glabrata Ned Cahill 1974-4-23 166 San Mateo Near intersection of Canada and Edgewood Roads, about 3 mi westward from Redwood City. Comment
  UCD133776  Lasthenia gracilis R. E. Dengler 1960-4-10 4 San Mateo Jasper Ridge, Stanford Biological Reserve. 190 Comment
  UC188985  Lasthenia minor Michener and Bioletti 1892-5-1 San Mateo Cemeteries Comment
  RSA10272  Lathyrus littoralis H. A. Barker 1927-5-14 672 San Mateo North of Half Moon Bay. Comment
  SEINET3557952 Image available Lathyrus vestitus Lewis S. Rose 1932-5-3 32208 San Mateo San Bruno. 183 Comment
  UCD35772  Lathyrus vestitus Beecher Crampton 1962-6-11 6494 San Mateo Pacifica, north city limits, along State Hwy. 1 just southwest of its junction with Skyline Blvd. Comment
  POM19357  Lathyrus vestitus subsp. bolanderi Edward L. Greene 1902-1-15 8231 San Mateo West side Kings Mountain. Comment
  RSA120413  Lathyrus vestitus subsp. vestitus Josephine Randall 1908-3-22 s.n. San Mateo Corte de Madera Canyon near Alpine Road Comment
  JROH2033  Lathyrus vestitus var. vestitus John Hunter Thomas 1978-4-20 19083 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1128955  Lathyrus vestitus var. vestitus H. S. Yates 1935-5-8 5203 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. 579 Comment
  RSA20413  Lavatera arborea I. L. Wiggins 1935-6-29 8050 San Mateo Bluffs near the beach near old Pebble Beach Hotel, between Pescardero and Pingeo Point Comment
  UCR253353  Lavatera cretica A. C. Sanders 2014-8-3 41239 San Mateo San Francisco Bay, South San Francisco, San Francisco Bay Trail in vicinity of S Airport Drive, Utah Ave., and Haskins Way, between Hwy 101 and San Francisco Bay 6 Comment
  CAS-BOT-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-BC323157  Layia chrysanthemoides David D. Keck 1932-5-6 1488 San Mateo 4 miles W of Burlingame on Skyline Boulevard. Comment
  CAS-BOT-BC323179  Layia chrysanthemoides William R. Dudley 1893-5-17 s.n. San Mateo Near Millbrae. Comment
  SEINET11811293  Layia chrysanthemoides M. T. Doutt 1931-1 413 San Mateo Skyline Blvd., W of Hillbrae Comment
  CAS-BOT-BC321074  Layia gaillardioides James McMurphy 1907-4-27 s.n. San Mateo Kings Mt. Comment
  CAS-BOT-BC321089  Layia gaillardioides James I. McMurphy 1909-5-25 s.n. San Mateo Fields above Pulpit Rock, San Mateo Canyon Comment
  CAS-BOT-BC327361  Layia hieracioides David D. Keck 1932-6-1 1796 San Mateo Above Searsville Lake, on La Honda road, E slope of Santa Cruz Mountains Comment
  CAS-BOT-BC327469  Layia hieracioides John H. Thomas 1953-5-2 3085 San Mateo Sunset Beach State Park, near USG&GS Markers: Park 1931 and Park 2-1931. 15 Comment
  POM53350  Layia hieracioides C. F. Baker 1902-5-4 742 San Mateo Woodside. Comment
  UC583132  Layia hieracioides Lewis S. Rose 1936-5-28 36309 San Mateo w of Redwood City; Emerald Lake 91 Comment
  RSA92182  Layia hieracioides D. D. Keck 1932-5-11 1760 San Mateo Above Searsville Lake, on La Honda Road, E slope of Santa Cruz Mountains. Comment
  CAS-BOT-BC382081  Layia platyglossa Le Roy Abrams 1902-5-11 2442 San Mateo Crystal Springs Comment
  JROH992  Layia platyglossa John H. Thomas 1956-4-7 5622 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH999  Layia platyglossa John Hunter Thomas 1980-5-8 19944 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB18707  Layia platyglossa Schulte, John 1963-4-28 San Mateo Jasper Ridge, 3 miles SW of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC382077  Layia platyglossa George Oberlander 1949-5-21 157 San Mateo On top of Sawyer Ridge Comment
  CAS-BOT-BC382080  Layia platyglossa Le Roy Abrams 1901-5-5 1565 San Mateo Woodside Comment
  CAS-BOT-BC382086  Layia platyglossa Ned Cahill 1974-4-8 117 San Mateo Near the intersection of Canada and Edgewood Roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC382087  Layia platyglossa W. R. Dudley 1909-4-27 s.n. San Mateo Santa Cruz Mountain Peninsula: Whipple Road near Blacksmith shop between Woodside and Crystal Springs Lakes Comment
  POM53185  Layia platyglossa subsp. platyglossa Michener, F. T. Bioletti 1892-05 s.n. San Mateo Cemeteries. Comment
  RSA10278  Layia platyglossa subsp. platyglossa H. A. Barker 1927-5-14 659 San Mateo North of Half Moon Bay. Comment
  RSA128806  Layia platyglossa subsp. platyglossa Peter H. Raven 1950-4-16 1780 San Mateo Colma Canyon, San Bruno Mountains. 183 Comment
  CAS-BOT-BC534547  Lemna gibba A. D. E. Elmer 1903-7-1 4765 San Mateo San Pedro Comment
  CAS-BOT-BC527268  Lemna minuta W. Knight; I. Knight 1966-10-4 2039 San Mateo Crocker Hills marsh between Geneva and Guadalupe Parkway, San Bruno Mountain 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
  UC1101256  Lemna valdiviana Malcolm A. Nobs, S. Galen Smith 1949-8-26 1579 San Mateo about 1 mi s of Half Moon Bay Comment
  JROH2783  Lepechinia calycina L. R. Abrams 1915-11-1 5479 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  LA64432  Lepechinia calycina Lewis S. Rose; 1933-6-9 33225 San Mateo Belmont Comment
  CAS-BOT-BC89137  Lepidium didymum Malcom A. Nobs; Stanley Galen [S. Galen] Smith 1949-8-26 1594 San Mateo Marshes at the south of Pescadero Creek. Comment
  CAS-BOT-BC89138  Lepidium didymum Walter Knight; Irja Knight 1964-5-30 105 San Mateo San Bruno Mountains. Along freeway in Colma Canyon. Comment
  UCD115364  Lepidium didymum John H. Weiler; B. Hirano 1961-3-22 6132 San Mateo On a north slope near the edge of bluffs overlooking Moss Beach. Comment
  CAS-BOT-BC12781  Lepidium perfoliatum David D. Keck 1932-3-24 1400 San Mateo Redwood City. At border of San Francisco Bay. Comment
  CAS-BOT-BC12782  Lepidium perfoliatum David D. Keck 1932-3-24 1400 San Mateo Redwood City. At border of San Francisco Bay. Comment
  JROH1557  Lepidium strictum John H. Thomas 1966-4-24 11582 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC12953  Lepidium strictum John Thomas Howell 1955-5-5 s.n. San Mateo 700 block of Bromfield Road, Burlingame. Comment
  RSA40290  Leptosiphon ambiguus L. S. Rose 1948-5-16 s.n. San Mateo Emerald Lake, west of Redwood City. 152 Comment
  POM65146  Leptosiphon androsaceus L. R. Abrams 1901-05 1553 San Mateo Searsville Comment
  POM279125  Leptosiphon androsaceus Lyman Benson 1928-4-16 608 San Mateo Searsville Ridge, Stanford U. 152 Comment
  JROH3180  Leptosiphon bicolor Carol Zabel 1989-5-8 16 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11 just before intersection with Trail 10 Comment
  CAS-BOT-BC226730  Leptosiphon latisectus W. R. Dudley 1900-4-4 s.n. San Mateo Hills west of San Bruno Station Comment
  CAS-BOT-BC226731  Leptosiphon latisectus A. D. E. Elmer 1903-4-1 4746 San Mateo Cemeteries Comment
  RSA128499  Leptosiphon liniflorus Harry A. Dutton 1900-4-3 s.n. San Mateo Woodside serpentine [?] Comment
  RSA159411  Leptosiphon liniflorus John H. Thomas 1961-5-14 9380 San Mateo Serpentine road bank and outcropping just north of dam on San Mateo Creek. 122 Comment
  CAS-BOT-BC324057  Lessingia arachnoidea John Thomas Howell 1927-9-10 3099 San Mateo Crystal Springs Lake 213 Comment
  POM263773  Lessingia arachnoidea L. S. Rose 1941-9-6 41434 San Mateo San Mateo Canyon 90 Comment
  SBBG39542  Lessingia arachnoidea L. S. Rose 1970-7-26 70077 San Mateo Skyline Blvd., Hillsborough, Black Mtn 121 Comment
  RSA0001373  Lessingia bakeri C. F. Baker 1902-10-20 1834 San Mateo Searsville. Comment
  SJSU15430  Lessingia germanorum Toni Corelli 2011-9-14 720 c San Mateo Northeast of Hillside Park, above houses 107 Comment
  JROH1005  Lessingia glandulifera var. glandulifera L. R. Abrams 1910-8-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  CAS-BOT-BC324179  Lessingia hololeuca Ned Cahill 1974-10-8 378 San Mateo near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  CAS-BOT-BC324184  Lessingia hololeuca LeRoy Abrams 1900-10-1 1004 San Mateo Portola Comment
  JROH5723  Lessingia hololeuca John Rawlings 2015-9-23 1646 San Mateo Jasper Ridge Biological Preserve, Stanford University. Location may be supplied to researchers on request. 145 Comment
  UCD134052  Lessingia hololeuca Lewis S. Rose 1964-9-5 64072 San Mateo Emerald Lake, west of Redwood City. 152 Comment
  CAS-BOT-BC257355  Leucanthemum vulgare Peter Rubtzoff 1988-5-12 9922 San Mateo San Bruno Mountain, Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road between Bog Trail and Saddle Trail junctions. Comment
  CAS-BOT-BC272324  Leymus mollis W. R. Bentley 1957-5-11 82 San Mateo Along State Highway #1 about 2 miles south of Pescadero Comment
  CAS-BOT-BC272189  Leymus triticoides John H. Thomas 1960-6-25 8799 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
  POM219276  Leymus triticoides H. F. Copeland 1929-7-4 1241 San Mateo La Honda Grade. Comment
  CAS-BOT-BC436528  Ligusticum apiifolium A. A. Heller 1907-4-20 8456 San Mateo San Bruno Hills Comment
  JROH2987  Ligustrum vulgare John Rawlings 2012-5-23 1116 San Mateo Jasper Ridge Biological Preserve, Stanford University; at the end of a spur off Trail 12 nearly opposite the intersection with Trail 10. The spur ends in a large patch of Scirpus microcarpus at the edge of Corte Madera Creek. 109 Comment
  CAS-BOT-BC173838  Lilaea scilloides Peter Rubtzoff 1975-5-21 7960 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC451674  Lilaea scilloides Alice Eastwood 1922-4-24 11196 San Mateo Between Princeton & Morman Comment
  CAS-BOT-BC130795  Lilium pardalinum W. S. Atkinson 1901-7-6 s.n. San Mateo Pescadero Creek near Harrison P.O. Comment
  SEINET3154762  Limnanthes douglasii L. S. Rose 1935-5-4 35146 San Mateo Skyline Blvd., W. of San Bruno Comment
  CHSC88573  Limnanthes douglasii subsp. ornduffii T. W. Henrich 2004-4-21 San Mateo Moss Beach. In field 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
  POM128509  Limonium californicum L. R. Abrams 1901-09 2226 San Mateo Cooley Landing. Comment
  UCD166487  Limosella Peter Rubtzoff 1965-10-19 5661 San Mateo Pilarcitos Lake. Comment
  JROH4065  Limosella acaulis John Hunter Thomas 1985-8-7 23707 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB39984  Limosella acaulis Thomas, John 1982-8-15 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  JEPS58172  Linanthus ambiguus A. D. E. Elmer Apr 1903 4913 San Mateo Crystal Springs Lake Comment
  UC205782  Linanthus ambiguus C. F. Baker 1902-5-4 751 San Mateo Woodside Comment
  UC1745718  Linanthus dichotomus Annetta Carter, Helen Sharsmith 1937-5-23 1318 San Mateo E side of Middle Crystal Springs Lake, about 1/2 mi. N of dam. Comment
  SEINET3696412 Image available Linanthus filipes Lewis S. Rose 1932-4-10 32140 San Mateo Redwood City. Comment
  UC125987  Linanthus liniflorus C. F. Baker 1902-5-4 760 San Mateo Woodside Comment
  UC494224  Linanthus liniflorus Mrs. G. Earle Kelly 1932-4-19 San Mateo San Mateo Comment
  RSA187534  Linum usitatissimum John H. Thomas 1953-7-25 3517 B San Mateo Near San Mateo/Santa Cruz Co. border along Whitehouse Road. Comment
  CAS-BOT-BC36075  Lithocarpus densiflorus var. densiflorus Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  POM270415A  Lithocarpus densiflorus var. densiflorus Lyman Benson 1932-7-25 3952 San Mateo Kings Mt. above Woodside; San Francisquito Cr. watershed. 305 Comment
  RSA152237  Lithocarpus densiflorus var. densiflorus I. L. Wiggins 1925-04 1661 San Mateo On Kings Mountain Road one mile above Woodside just above the first Pseudotsuga menziesii on the right edge of the road. Comment
  RSA252256  Lithocarpus densiflorus var. densiflorus Gary D. Wallace 1974-12-28 1375 B San Mateo Santa Cruz Mtns. along Skyline Blvd (Hwy. 35) w of Redwood City, 2.8 mi n of King Mtn Rd. 640 Comment
  CAS-BOT-BC36069  Lithocarpus densiflorus var. densiflorus W. R. Dudley 1895-3-26 s.n. San Mateo Beyond Post Office and near Mill on Alpine road Comment
  JROH3889  Lithophragma affine John H. Thomas 1979-4-12 19449 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC430767  Lithophragma affine Volney Rattan 1883-4-1 s.n. San Mateo Milbrae Comment
  JROH735  Logfia gallica D. E. Breedlove 1971-5-31 19361 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH741  Logfia gallica John Hunter Thomas 1982-5-5 20920 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC342462  Logfia gallica D. E. Breedlove 1974-5-13 36225 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  CAS-BOT-BC269126  Lolium perenne George Oberlander 1949-7-25 249 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  CAS-BOT-BC269127  Lolium perenne W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Road at top of Matara Mt. Comment
  RSA786667  Lolium perenne subsp. multiflorum Peter Rubtzoff 1976-6-13 8629 San Mateo San Bruno Mountains: 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. In area of uppermost part of East Fork Colma Creek, at the NW corner of Fog Forest. Comment
  JEPS89917  Lomatium caruifolium var. caruifolium Dean W. Taylor 1988-3-30 9493 San Mateo n. slope of s.e. ridge near the ridgecrest San Bruno Mt. (right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain); Santa Cruz Mts., San Francisco South 7 1/2 Quad., San Bruno 237 Comment
  UCSB4597  Lomatium dasycarpum Walker, Clifford 1954-4-20 San Mateo Canada Rd. and Jefferson Rd. Comment
  JEPS17145  Lomatium dasycarpum subsp. dasycarpum Elena R. Goodwin May 1914 5739 San Mateo Redwood City Comment
  JEPS17120  Lomatium macrocarpum Elena R. Goodwin May, 1914 5739 San Mateo Redwood City 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-BC240595  Lonicera hispidula Cherie Wetzel 1969-6-20 861 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CHSC56976  Lonicera hispidula Steven Triano 1988-5-24 183 San Mateo Along W side of Old La Honda Road ca 0.8 mi S of Portola Road and 4.0 mi S of woodside. 201 Comment
  JROH1652  Lonicera hispidula John H. Thomas 1970-7-5 15664 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1658  Lonicera hispidula John Hunter Thomas 1980-5-6 19925 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SFV3590  Lonicera hispidula K. A. Wilson 1961-6-24 1237 San Mateo Santa Cruz Mountains Skyline Blvd. (California Highway 5). 625 Comment
  CAS-BOT-BC240603  Lonicera hispidula Carl B. Wolf 1931-11-5 1805 San Mateo Santa Cruz Mts. 2 mi. w. of La Honda 304 Comment
  HSC23785  Lonicera hispidula var. vacillans Mary Katherine Wicksten 1971-6-18 37 San Mateo Huddart Park, near lower parking lot. Comment
  RSA6423  Lonicera hispidula var. vacillans D. D. Keck 1932-8-13 1753 San Mateo Alpine Creek Road above Rolph's Ranch, east slope of Santa Cruz Mtns. 549 Comment
  UC484309  Lonicera hispidula var. vacillans Carl B. Wolf 1930-11-5 1805 San Mateo 2 mi w La Honda; Santa Cruz Mtns. 304 Comment
  CAS-BOT-BC243970  Lonicera involucrata var. ledebourii David D. Keck 1938-5-30 4726 San Mateo San Gregorio 30 Comment
  RSA51271  Lonicera involucrata var. ledebourii P. H. Raven 1950-4-30 1983 San Mateo Montara Mtns. Ca 1/2 mile N of Montara. 91 Comment
  UCR121554  Lotus corniculatus George K. Helmkamp, E. A. Helmkamp 1999-6-28 4990 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  UC15718  Lotus heermannii var. orbicularis F. T. Bioletti 1892-6-22 San Mateo Italian Cemetery, S. Fr. Comment
Read comments
Dec 1 2007
  POM18350  Lotus micranthus C. F. Baker 1902-5-4 744 San Mateo Woodside. Comment
  UC69628  Lotus micranthus J. Burtt Davy 1895-4-20 1045 San Mateo Lake Pilarcitos Comment
  UC311102  Lotus scoparius A. D. E. Elmer 1903-6-1 4447 San Mateo Belmont Comment
  UCD164699  Lotus tenuis Peter Rubtzoff 1976-6-13 8631 San Mateo San Bruno Mountains. 'Saddle' area on N side of Guadalupe Canyon Parkway west of Radio Road junction, margin of marshy area NW of Fog Forest. Comment
  HSC23870  Lotus unifoliolatus var. unifoliolatus Mary Katherine Wicksten 1971-6-15 24 San Mateo Huddart Park Rd. bank near office Comment
  HSC23955  Lotus unifoliolatus var. unifoliolatus Mary Katherine Wicksten 1971-6-22 92 San Mateo Huddart Park by horse ring Comment
  POM18648  Lotus wrangelianus C. F. Baker 1902-5-1 776 San Mateo Crystal Springs Lake. Comment
  POM276636  Lotus wrangelianus Lyman Benson 1931-3-15 2648 San Mateo Redwood City 152 Comment
  HSC24026  Ludwigia peploides subsp. peploides Mary Katherine Wicksten 1971-6-20 70 San Mateo San Francisquito Creek, by Oak Knoll School Comment
  CAS-BOT-BC60244  Lunaria annua Miss H. Thompson 1907-4-6 s.n. San Mateo Roadside near Woodside. Comment
  UCR240782  Lupinus T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3514 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  SEINET5766835 Image available Lupinus albifrons Lewis S. Rose 1931-1 s.n. San Mateo Belmont Comment
  SEINET10488379  Lupinus albifrons Charles Piper Smith 1948-4-23 Smith 48150 San Mateo Canada road 4 miles n of woodside Comment
  UCSB11178  Lupinus albifrons Connelly, Dianne 1962-4-21 San Mateo San Mateo County Game Preserve, 15 miles southeast of San Francisco on Highway 9 152 Comment
  UCSB11482  Lupinus albifrons Olson, Jim 1962-4-17 San Mateo 10 miles north of Woodside on Canada Road 76 Comment
  CAS-BOT-BC195785  Lupinus albifrons var. albifrons Charles Piper Smith 1922-4-22 3495 San Mateo Belmont, Half Moon Bay road 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-BC195818  Lupinus albifrons var. albifrons C. F. B. 1902-3-22 341 San Mateo Crystal Springs Lake 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-BC195809  Lupinus albifrons var. albifrons W. R. Dudley 1894-4-21 s.n. San Mateo Ravine of San Mateo Creek 3 miles above town Comment
  RSA134045  Lupinus albifrons var. albifrons W. R. Dudley 1894-4-21 s.n. San Mateo 3 miles above town, ravine of San Mateo Creek. Comment
  CAS-BOT-BC196113  Lupinus albifrons var. collinus John H. Thomas 1955-4-6 4833 San Mateo East facing slope of San Bruno Mountain just north of South San Francisco 91 Comment
  RSA134041  Lupinus albifrons var. collinus Roxana S. Ferris 1921-4-7 2131 San Mateo San Bruno mountain near San Francisco 213 Comment
  SEINET10484531  Lupinus albifrons var. collinus Walter Knight, Irja Knight 1963-8-5 Knight s.n. San Mateo Motorcycle ridge, san bruno mountain Comment
  SEINET10484535  Lupinus albifrons var. collinus Walter Knight, Irja Knight 1965-3-15 Knight 1225 San Mateo Low growing on open slopes. Colma canyon. San bruno mountains Comment
  SEINET10970192  Lupinus albifrons var. collinus Mcclintock 1963-2-16 MCCLINTOCK s.n. San Mateo Below top of mountain in vicinity of radio station. San bruno mountain Comment
  CAS-BOT-BC27391  Lupinus apricus C. P. Smith 1908-4-13 1404 San Mateo Stanford University, Cedro Cottage Field. Comment
  CAS-BOT-BC27392  Lupinus apricus C. P. Smith 1908-5-2 1427 San Mateo Stanford University. Stockfarm bridge. Comment
  CHSC903  Lupinus arboreus A. Koopman 1929-5-9 San Mateo Moss Beach. 9 Comment
  SEINET10488469  Lupinus arboreus Mcclintock 1963-6-23 MCCLINTOCK s.n. San Mateo San bruno mountain. Top of mountain, near radio station Comment
  JROH2114  Lupinus bicolor John H. Thomas 1974-4-4 17076 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2116  Lupinus bicolor John H. Thomas 1977-4-8 18518 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC764739  Lupinus bicolor R. F. Hoover 1939-4-21 4054 San Mateo 2 mi s Colma; s of Colma Comment
  SEINET10484850  Lupinus bicolor Walter Knight, Irja Knight 1965-4-4 Knight 1008 San Mateo Bitter Cherry Ravine. In chaparral. Occasional plant - no colonies. Comment
  SEINET12154472  Lupinus bicolor Unknown 1932-1 9116 San Mateo Half Moon Bay Comment
  UCD107185  Lupinus bicolor A. A. Heller 1911-4-12 10250 San Mateo near Stanford University. Comment
  SEINET10903830  Lupinus bicolor var. umbellatus Walter Knight, Irja Knight 1964-4-13 Knight 709 San Mateo Power line ridge in grassland. Comment
  SEINET12154504  Lupinus densiflorus E. A. Purer 1933-1 5512 San Mateo along Skyline Drive Comment
  RSA413555  Lupinus densiflorus var. densiflorus E. A. Purer 1933-8-25 5512 San Mateo Skyline Drive. Comment
  UC865157  Lupinus formosus var. formosus Alice Eastwood, John Thomas Howell 1938-6-26 6077 San Mateo Crystal Springs Lake Comment
  POM11079  Lupinus latifolius subsp. latifolius A. D. E. Elmer 1903-06 4593 San Mateo Woodside. Comment
  JROH2123  Lupinus latifolius var. latifolius John H. Thomas 1977-4-29 18575 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC138024  Lupinus microcarpus var. microcarpus C. F. Baker 1902-5-1 850 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC164349  Lupinus nanus Peter Rubtzoff 1978-7-8 9225 San Mateo Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction. East Fork Colma Creek Canyon, W side of canyon Comment
  SEINET10490839  Lupinus nanus subsp. nanus Walter Knight, Irja Knight 1967-6-6 Knight 2070 San Mateo Point san bruno. Comment
  SEINET11072303 Image available Lupinus polycarpus Lewis S. Rose 1942-3-30 42006 San Mateo Mills Fields 2 Comment
  JROH5620  Lupinus succulentus John Rawlings 2014-4-27 1221 San Mateo Jasper Ridge Biological Preserve, Stanford University. On slope above Road E opposite terminus of Trail 13 at Leonard's Bridge. 106 Comment
  UC2049897  Lupinus succulentus H. W. Johansen 1955-4-10 51 San Mateo Pescadero Creek road, 4 miles E of Pescadero. Comment
  SEINET10490275  Lupinus vallicola subsp. apricus P. Wheeler 1966-5-1 Wheeler UMO 104189 San Mateo Crocker field industrial park. San bruno mtn. Large colony of blue flowered Lupines with many white flowered plants mixed in. Comment
  SEINET10490286  Lupinus vallicola subsp. apricus David B. Dunn, Howard Brown 1946-5-16 Dunn 2600 San Mateo Collected on dry, rocky road out in the e side of the mtns of the san francisco Peninsula; 4.7 mi ne on the canyon rd from the jct with skyline drive (hwy 5). Comment
  SEINET10870826  Lupinus vallicola subsp. apricus Charles Piper Smith 1946-3-26 Smith 46118 San Mateo Woodside, 2.3 m N. Comment
  CDA9351  Lupinus variicolor M. Beyers, S. Serkanic 2013-3-3 1033 San Mateo South of the parking turn-out and east of Highway 1. 101 Comment
  RSA21949  Lupinus variicolor Alice Eastwood, John T. Howell 1938-6-26 6076 San Mateo Kings Mt. Comment
  UC311903  Lupinus variicolor A. D. E. Elmer April, 1903 4915 San Mateo Lake San Andreas Comment
  RSA176707  Lupinus variicolor John H. Thomas 1964-6-28 10437 San Mateo Along highway 1 near Pedro Point. Comment
  SEINET10489110  Lupinus variicolor Smith 1948-4-23 Smith 48141 San Mateo Hwy 1, san pedro point, north grade. Comment
  CAS-BOT-BC441367  Luzula subsessilis Alice Eastwood 1914-3-12 s.n. San Mateo San Bruno Hills Comment
  CAS-BOT-BC441361  Luzula subsessilis Elizabeth McClintock; Philip Wheeler 1967-5-14 34 San Mateo San Bruno Mountain: east side of mountain, above Harold Ave., Brisbane. Slope above Philip Wheeler's house Comment
  CAS-BOT-BC441366  Luzula subsessilis Javier Penalosa 1963-3-30 2723 San Mateo San Bruno Mountain: North of Randolph Drive at Hillside Blvd in South San Francisco 91 Comment
  UC1057747  Luzula subsessilis F. A. Pitelka 1946-4-13 San Mateo one mi n Montara; n of Montara 30 Comment
  JROH3375  Lysimachia minima John Hunter Thomas 1982-4-30 20883 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0034072  Lythrum Peter Rubtzoff 1987-8-26 9837 San Mateo San Bruno Mountain, Saddle area on N side of Guadalupe Canyon. Parkway west of Radio Road junction; northwestern part of the area along old Guadalupe Road. Comment
  RSA0011334  Lythrum hyssopifolia John H. Thomas 1954-5-28 4242 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 30 Comment
  SD39672  Lythrum hyssopifolia Edith A. Purer 1933-7-27 5366 San Mateo 2.0 miles south of Pigeon Point. Comment
  JROH2947  Lythrum hyssopifolia John Hunter Thomas 1977-6-16 18751 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old racing oval Comment
  JROH2953  Lythrum hyssopifolia John Hunter Thomas 1983-5-23 22248 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dry road and low-flow crossing on shack side Comment
  RSA0011329  Lythrum hyssopifolia Carl B. Wolf 1929-6-8 3744 San Mateo East base of La Honda Grade. Comment
  JEPS40339  Madia elegans John Thomas Howell 1926-10-9 2221 San Mateo between Crystal Springs Lake and San Mateo Comment
  JEPS27363  Madia exigua Rimo Bacigalupi with J. Roof and L. Heckard 1961-4-24 7623 San Mateo about copse edges on lateral ridge below and se of paved ridge-top road just e KRON television tower and station (on Guadalupe Valley side of mountain); San Bruno Mountain 304 Comment
  JROH1039  Madia exigua John H. Thomas 1958-5-10 7141 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1049  Madia exigua John Hunter Thomas 1977-6-16 18779 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1051  Madia exigua John Hunter Thomas 1978-4-22 19108 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1056  Madia exigua John Hunter Thomas 1981-5-25 20636 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC344488  Madia exigua W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. Ravine west of San Mateo (upper) Creek Comment
  POM362166  Madia exigua D. D. Keck 1932-5-11 1761 San Mateo Above Searsville Lake, La Honda road, east slope of Santa Cruz Mountains, San Mateo Mountains Comment
  RSA63052  Madia exigua L. S. Rose 1950-5-20 50145 San Mateo Emerald Lake region, hills w. of Redwood City. 244 Comment
  CAS-BOT-BC343326  Madia gracilis W. R. Dudley 1894-5-20 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Redwood City Comment
  CAS-BOT-BC343327  Madia gracilis L. R. Abrams 1920-6-1 7502 San Mateo Santa Cruz Mountain Peninsula. Back of Redwood City Comment
  JROH1071  Madia gracilis John H. Thomas 1969-5-28 15093 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1074  Madia gracilis J. H. Thomas 1977-4-29 18571 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1076  Madia gracilis John Hunter Thomas 1978-5-12 19204 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  POM298352  Madia gracilis D. D. Keck 1932-6-1 1787 San Mateo Above Woodside on the La Honda road, east slope of the Santa Cruz Mountains 305 Comment
  RSA11165  Madia gracilis C. B. Wolf 1927-7-14 595 San Mateo Summit of Kings Mountain road at junction with Skyline Blvd. 610 Comment
  POM87787  Madia madioides L. R. Abrams 1902-5-20 2474 San Mateo Kings Mountain Comment
  CAS-BOT-BC345115  Madia sativa David D. Keck 1933-11-2 2628 San Mateo 3.5 mi. S.W. of Pescadero, within 100 m. of ocean 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
  CAS-BOT-BC345139  Madia sativa Margaret A. Barry 1937-7-17 211 San Mateo Coal Mine Ridge Comment
  JROH1101  Madia sativa John H. Thomas 1971-8-7 16020 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM284995  Madia sativa Lyman Benson 1935-5-5 6543 San Mateo Lake Searsville. Stanford University. Santa Cruz Mtn range. S.F. Bay watershed. 152 Comment
  SD40001  Madia sativa Edith A. Purer 1933-7-27 5347 San Mateo 2.0 miles south of Pigeon Point. Comment
  CAS-BOT-BC345134  Madia sativa Bruce G. Baldwin 1985-9-1 513 b San Mateo 0.5 miles west of Interstate 280 along Sand Hill Road Comment
  CAS-BOT-BC345143  Madia sativa David D. Keck 1930-10-15 988 San Mateo South-west of Woodside 450 Comment
  POM49380  Madia sativa L. R. Abrams 1901-9-1 2227 San Mateo Menlo Park Comment
  RSA184909  Madia sativa L. S. Rose 1966-8-6 66078 San Mateo San Bruno Mountain, head of Colma Canyon 213 Comment
  UCD134343  Madia sativa Lewis S. Rose 1966-8-6 66078 San Mateo San Bruno Mountain, head of Colma Canyon. 213 Comment
  JROH4693  Maianthemum racemosum L. R. Abrams 1916-3-25 5585 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Ridge near Dam Comment
  RSA3925  Maianthemum racemosum subsp. amplexicaule Josephine Randall 1908-3-28 s.n. San Mateo Kings Mt. Comment
  CAS-BOT-BC512115  Maianthemum racemosum subsp. amplexicaule Ned Cahill 1974-5-13 251 San Mateo Chaprral near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  RSA407374  Maianthemum racemosum subsp. amplexicaule Lyman Benson 1928-4-21 95 San Mateo Stanford University, Mt. Range: Santa Cruz; River: San Francisquito Creek. 91 Comment
  JROH4705  Maianthemum stellatum John H. Thomas 1970-5-16 15629 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4712  Maianthemum stellatum John Hunter Thomas 1978-7-8 19256 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM169289  Maianthemum stellatum C. F. Baker 1903-4-8 1915 San Mateo San Andreas Lake Comment
  CAS-BOT-BC514161  Maianthemum stellatum W. R. Dudley 1893-2-19 s. n. San Mateo Road from La Honda to Alpine Comment
  CAS-BOT-BC514166  Maianthemum stellatum George Oberlander 1950-3-18 513 San Mateo Pilarcites Canyon Comment
  JROH4720  Maianthemum stellatum John Hunter Thomas 1991-4-25 25001 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near redwoods below dam Comment
  UC138331  Malacothamnus aboriginum J. W. Congdon 1902-7-20 San Mateo Spring Valley Comment
Read comments
Aug 31 2006
  UC614867  Malacothamnus fremontii Beryl O. Schreiber 1932-5-29 San Mateo near San Mateo (Spring Valley Water Company road) Comment
  UCR254721  Malus domestica Peter Rubtzoff 1975-10-24 8432 San Mateo San Francisco Bay Region, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains 220 Comment
  CAS-BOT-BC540128  Malus domestica Elizabeth McClintock; Paul Reedberg 1988-4-14 s.n. San Mateo 80 feet east of SBM park entrance, along north side of Guadalupe Canyon Parkway; San Bruno Mountains 213 Comment
  CHSC39807  Marah fabacea Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  JROH1900  Marah fabacea John H. Thomas 1961-4-29 9195 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  JROH2167  Medicago polymorpha John H. Thomas 1973-4-14 16573 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2172  Medicago polymorpha John Hunter Thomas 1988-4-7 24377 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC269479  Melica californica George Oberlander 1950-4-23 808 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  CDA9441  Melica californica D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  RSA101020  Melica geyeri G. Oberlander 1950-4-23 867 San Mateo San Francisco Watershed Reserve, south boundary. Comment
  JROH5302  Melica imperfecta John Hunter Thomas 1978-4-8 19059 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5308  Melica imperfecta John Hunter Thomas 1985-4-22 23551 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Rattlesnake Rocks Comment
  CAS-BOT-BC264186  Melica subulata L. R. Abrams 1915-6-14 5560 San Mateo Kings Mountain Road, first bridge Comment
  CAS-BOT-BC264249  Melica torreyana W. R. Dudley 1900-5-19 s.n. San Mateo Above La Honda, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC264255  Melica torreyana George Oberlander 1949-5-21 185 San Mateo South boundary, San Francisco Watershed Reserve Comment
  HSC24045  Melilotus indicus Mary Katherine Wicksten 1971-6-15 12 San Mateo Huddart Park Rd. bank near office Comment
  POM284512  Melissa officinalis Lyman Benson 1937-7-15 8456 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains; San Francisco Bay watershed. 244 Comment
  JROH2802  Melissa officinalis Carol Zabel 1989-8-7 21 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 13, half way from causeway bridge to Leonard's bridge, north side of trail Comment
  RSA177005  Mentha pulegium John H. Thomas 1964-11-29 10533 San Mateo Jasper Ridge Biological Experimantal Area, about 5 miles SW of Palo Alto; W end of Searsville Dam Comment
  UC1714386  Mentha pulegium U. S. Grant IV 1926-9-6 San Mateo King's Mt. 609 Comment
  JROH2808  Mentha pulegium John H. Thomas 1974-10-26 17627 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU43  Mentha pulegium C. D. Duncan 1925-10-11 San Mateo Mud Lakes, summit of Coal Mine Ridge (above Corte Madera Cr) Santa Cruz Mts. Comment
  RSA135751  Mercurialis annua John H. Thomas 1955-11-9 5503 San Mateo Fallow Brussel Sprout field near Sanchez Adobe House, San Pedro Valley, about 8.5 miles south of San Francisco - San Mateo County line, and 0.9 mile inland from the ocean. Comment
Read comments
Aug 8 2010
  CAS-BOT-BC435236  Mesembryanthemum crystallinum Lin Grayson 1981-5-13 022 San Mateo Palmetto Ave, 100 ft. south of intersection Avalon Dr. Pacifica 16 Comment
  JROH1117  Micropus californicus var. californicus Hester Bavis 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1129  Micropus californicus var. californicus John Hunter Thomas 1982-4-28 20872 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5948  Micropus californicus var. californicus John Rawlings 2016-4-20 1726 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11 at lower Trail 9 118 Comment
  CAS-BOT-BC349027  Microseris douglasii subsp. douglasii Ned Cahill 1974-4-19 151 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH1140  Microseris douglasii subsp. douglasii John H. Thomas 1957-4-16 6658 San Mateo Jasper Ridge Biological Preserve, Stanford University; open serpentine area on top of ridge and adjacent slopes Comment
  CAS-BOT-BC349016  Microseris douglasii subsp. douglasii George Oberlander 1950-4-23 880 San Mateo San Francisco Watershed Reserve. Near Lower Crystal Spr. Lake 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
  RSA0059221  Microseris douglasii subsp. douglasii K. L. Chambers 1980-5-8 4620 San Mateo Canada Road, ca. 3.2 mi N. of Woodside, at junct. of Edgewood Rd., below I-280 Freeway. Comment
  UC92162  Microseris douglasii subsp. tenella C. F. Baker 1902-5-4 756 San Mateo Woodside Comment
  SEINET10842027 Image available Microseris leucocarpha Charles F. Baker 1902-5-4 Baker 808 San Mateo Woodside. Comment
  JEPS85570  Mimulus aurantiacus var. aurantiacus Craig Dremann 1986-8-30 321 San Mateo near La Honda (Highway 84 (Woodside-La Honda Road), near mile 6.68) Comment
  UCSC007764  Mimulus aurantiacus var. aurantiacus Becky Hendricks, Chris Lay 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  SBBG33480  Mimulus guttatus A. D. E. Elmer -Aug-1903 4857 San Mateo Crystal Springs Lake Comment
  RSA217981  Mimulus guttatus Walter Knight, I. Knight 1963-7-14 274 San Mateo Base of Quarry 2. San Bruno Mtn. Comment
  UCD122715  Mimulus microphyllus R. S. Woglum 1935-5-25 996 San Mateo King City-Coalinga, along State Highway 198. Comment
  UC1111631  Minuartia douglasii Lewis S. Rose 1956-5-7 56067 San Mateo Skyline Blvd. w San Mateo 182 Comment
  RSA107042  Minuartia douglasii L. S. Rose 1956-5-7 56067 San Mateo Skyline Blvd west of San Mateo. 183 Comment
  CAS-BOT-BC384007  Mirabilis jalapa W. Knight; I. Knight 1966-10-4 2053 San Mateo San Bruno Mountain. Near Bayshore Blvd. Comment
  SJSU12767  Moehringia macrophylla S. L. Jones 1986-4-6 85 San Mateo saddle betweem San Pedro Mt & Montara Mt, Pacifica 274 Comment
  CAS-BOT-BC7363  Monardella franciscana Adolph Daniel Edward Elmer 1903-7-1 4766 San Mateo San Pedro Comment
  CAS-BOT-BC214066  Monardella villosa Phillip C. Wheeler 1965-6-19 s.n. San Mateo Canyon east of quarry, San Bruno Mountain Comment
  CAS-BOT-BC214067  Monardella villosa Phillip C. Wheeler 1921-7-30 47 San Mateo Salada Comment
  CAS-BOT-BC220662  Monardella villosa Margaret A. Barry 1937-7-17 210 San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC214061  Monardella villosa W. R. Dudley 1901-10-25 s.n. San Mateo Near summit road to Spanishtown, Santa Cruz Mountain Peninsula Comment
  RSA185020  Monardella villosa L. S. Rose 1965-6-15 65080 San Mateo South of parking lot near summit, San Bruno Mountain 366 Comment
  RSA218007  Monardella villosa Elizabeth McClintock, Walter, Irja Knight, Baki Kasapligil 1967-7-18 s.n. San Mateo North side of ridge road adjacent to Buckeye Canyon, San Bruno Mountain Comment
  JEPS127870  Monardella villosa subsp. villosa Adam C. Schneider 2013-5-17 154 San Mateo Crystal Springs Reservoir Comment
  JROH2843  Monardella villosa subsp. villosa John Hunter Thomas 1980-6-5 19995 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2833  Monardella villosa subsp. villosa John H. Thomas 1961-6-7 9529 San Mateo Jasper Ridge Biological Preserve, Stanford University; just above Searsville Lake Comment
  CAS-BOT-BC327788  Monolopia gracilens Eric Walther 1920-5-9 s.n. San Mateo Woodside 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
  CAS-BOT-BC444954  Montia fontana George Oberlander 1950-4-16 632 San Mateo San Francisco Watershed Reserve. Below San Andreas Dam Comment
  UCD163600  Morella californica Peter Rubtzoff 1980-12-11 9634 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CDA31867  Myoporum laetum Robin Breckenridge, K. Filippini 2010-2-18 PDR# 1463755 San Mateo Miramar: Highway 1, next to Frenchman Creek. 0 Comment
  PGM4947  Myosotis discolor Vern Yadon 2002-5-2 San Mateo Swanton near San Mateo Co, Inland from 1st ridge Comment
  JROH1399  Myosotis latifolia John Rawlings 2007-4-1 0986 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2, 500 yards east of Zoology Cabin site. 69 Comment
  RSA176826  Myosotis latifolia John H. Thomas 1961-5-5 9207 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  UCR122630  Myosotis latifolia George K. Helmkamp, E. A. Helmkamp 2001-6-2 6770 San Mateo San Francisco Bay Region, Purisima Creek Road, east of Half Moon Bay at Purisima Creek, 3.2 miles east of CA Hwy 1 244 Comment
  CAS-BOT-BC101770  Myrica californica W. R. Dudley 1893-2-18 s.n. San Mateo near La Honda Comment
  CAS-BOT-BC101771  Myrica californica John H. Thomas 1976-10-7 18394 San Mateo Along coast highway #1, 0.6 miles north of northern most road to Pigeon Pt. Lighthouse. About 4.2 miles almost due south 30 Comment
  CAS-BOT-BC101776  Myrica californica Ira L. Wiggins 1929-5-10 3678 San Mateo Roadside between Pigeon Point and Pescadero Comment
  CAS-BOT-BC101777  Myrica californica Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Wax Myrtle Ravine Comment
  CAS-BOT-BC268098  Myriophyllum Peter Rubtzoff 1965-10-19 5665 San Mateo Pilarcitos Lake. Comment
  POM295476  Nassella pulchra Lyman Benson 1930-4-17 2080 San Mateo Stanford University. 152 Comment
  POM295475  Nassella pulchra Lyman Benson 1930-5-1 2073 San Mateo Stanford Univ. San Lorenzo mtn range. 152 Comment
  CAS-BOT-BC60477  Nasturtium officinale Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Base of Quarry 2. Comment
  JROH1568  Nasturtium officinale John H. Thomas 1955-5-6 4998 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM65519  Navarretia heterodoxa A. D. E. Elmer 1903-06 4282 San Mateo Crystal Springs Lake. Comment
  SEINET183956  Navarretia heterodoxa Lewis S. Rose 1936-5-28 36306 San Mateo Emerald Lake, west of Redwood City 91 Comment
  JROH3217  Navarretia squarrosa John Hunter Thomas 1983-7-20 22892 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1124144  Navarretia squarrosa G. E. Sindel 1935-7-25 310 San Mateo Lagoon, mouth of Pescadero Creek Santa Cruz Quad., Pescadero Creek 7 Comment
  UC52679  Navarretia squarrosa J. Burtt Davy 1893-6-17 781 San Mateo Belmont Comment
  UCSC000592  Navarretia squarrosa N. K. Carlson 1935-6-29 106 San Mateo 1 mile S. of Pescadero Pescadero 91 Comment
  RSA101011  Nemophila menziesii var. atomaria G. Oberlander 1950-4-2 569 San Mateo Near San Andreas Lake, San Francisco Watershed Reserve Comment
  CDA29076  Nemophila parviflora D. G. Kelch 2009-6-9 9 .407 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
  JROH2743  Nemophila parviflora var. parviflora Herbert Dengler 1967-4-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2456  Notholithocarpus densiflorus var. densiflorus Toni Corelli 2011-10-4 373 San Mateo Jasper Ridge Biological Preserve, Stanford University; across from Douglas' iris site, west of Trail 20 87 Comment
  CAS-BOT-BC140433  Oemleria cerasiformis Elizabeth McClintock 1965-3-14 s.n. San Mateo Cable Ravine, San Bruno Mt. Comment
  CAS-BOT-BC389684  Oemleria cerasiformis Jeanie Nieri 1953-1-31 s.n. San Mateo Huddart Park Comment
  JROH3718  Oemleria cerasiformis John Hunter Thomas 1990-4-26 24811 San Mateo Jasper Ridge Biological Preserve, Stanford University. To the west of the dam Comment
  CAS-BOT-BC140444  Oemleria cerasiformis Mrs. Geo. H. C. Meyer 1915-3-1 s.n. San Mateo Easton Comment
  JROH284  Oenanthe sarmentosa L. R. Abrams 1919-8-20 7349 San Mateo Jasper Ridge Biological Preserve, Stanford University; head of Searsville Lake Comment
  UC1122259  Oenothera elata subsp. hookeri G. E. Sindel 1935-7-25 307 San Mateo 1 mi w Pescadero; Santa Cruz Quadrangle Comment
  CAS-BOT-BC499688  Orobanche californica subsp. californica Robert S. Jr. Cox 1946-8-17 s.n. San Mateo Hills above Half Moon Bay Comment
  UC124996  Orobanche californica subsp. californica W. A. Setchell 1908-11-1 San Mateo Farallone City. Comment
  SJSU15793  Orobanche fasciculata Toni Corelli 2010-7-8 642 San Mateo Bean Hollow State Beach along Arroyo de los Frijoles Trail 10 Comment
  JROH3089  Orobanche vallicola James McMurphy 1906-8-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  CAS-BOT-BC502963  Orobanche vallicola Burleigh H. Murray 1929-7-20 s.n. San Mateo Beresford, near San Mateo 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
  RSA523837  Orthocarpus erianthus Gordon H. True Jr. 1936-6-7 487 San Mateo 2 miles south of Pescadero. Along coast highway. 15 Comment
  POM15373  Orthocarpus erianthus var. roseus A. D. E. Elmer 1903-05 4670 San Mateo South San Francisco. Comment
  RSA155567  Orthocarpus erianthus var. roseus L. S. Rose 1961-4-5 61034 San Mateo San Bruno Mountains. 366 Comment
  RSA88573  Orthocarpus lithospermoides L. S. Rose 1954-5-17 54043 San Mateo Emerald Lake, E of Redwood City. 183 Comment
  HSC23966  Osmorhiza berteroi Mary Katherine Wicksten 1971-6-17 74 San Mateo Huddart Park, along Chickadee Trail Comment
  JROH295  Osmorhiza berteroi John Hunter Thomas 1985-5-2 23580 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA119325  Osmorhiza berteroi S. S. Tillett, I. Sternback 1956-6-24 540 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  POM139435  Oxalis oregana A. D. E. Elmer 1903-03 4532 San Mateo Portola Comment
  POM353455  Oxalis oregana J. Doty 1969-3-26 602 San Mateo State Highway 34, 6 miles north of its junction with State Highway 38. Comment
  POM353456  Oxalis oregana Paul C. Silva 1948-1-31 2630 San Mateo Old La Honda Grade, 1/2 mile south of Skyline Blvd 488 Comment
  SEINET10969325  Oxalis oregana R. D. Sage 1992-1-6 Sage 13395 -1 San Mateo Collected at purisima creek rd trail in purisima creek redwoods open space preserve. 9 Km w woodside. 244 Comment
  UCSB24631  Oxalis oregana Masere, Ann 1967-3-21 San Mateo Butano Creek in Butano Canyon, 3.3 miles east of junction of Cloverdale Road and Canyon Road on Canyon Road 106 Comment
  CAS-BOT-BC318250  Packera breweri Otto Holm 1930-5-8 s.n. San Mateo Berenda Farm, near Redwood City. Comment
  CAS-BOT-BC318251  Packera breweri W. R. Dudley 1893-5-3 s.n. San Mateo Foothills near Stanford University. Comment
  CAS-BOT-BC253791  Panicum hillmanii Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountains. Brisbane Lagoon near railroad tracks Comment
  RSA152077  Parapholis incurva John H. Thomas 1962-5-12 9859 San Mateo Franklin Point. 0 Comment
  RSA176768  Parapholis incurva John H. Thomas 1963-5-20 10138 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  UCSC000079  Parapholis incurva A. Hormay 1932-5-29 16 San Mateo San Bruno 0 Comment
  JROH5872  Parentucellia viscosa Ann Lambrecht 2011-4-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; 6-8 m off road from Main Gate to visitor parking lot, about 3 m north of power line Comment
  UCD88912  Paspalum distichum W. R. Dudley 1903-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Searsville Lake. Comment
  UCD88918  Paspalum distichum David Hanson 1975-11-24 s.n. San Mateo Half Moon Bay. Comment
  JROH1402  Pectocarya pusilla John H. Thomas 1975-5-2 17858 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5690  Pectocarya pusilla John Rawlings 2015-4-7 1455 San Mateo Jasper Ridge Biological Preserve, Stanford University; quarry off Trail 12 110 Comment
  JROH4101  Pedicularis densiflora John H. Thomas 1957-4-16 6663 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  JROH4104  Pedicularis densiflora John H. Thomas 1959-4-5 7663 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4106  Pedicularis densiflora Duncan M. Porter 1961-1-18 736 San Mateo Jasper Ridge Biological Preserve, Stanford University; Westridge end of Jasper Ridge Comment
  SBBG34023  Pedicularis densiflora L. S. Rose 1969-3-27 San Mateo 2 mi NW of Woodside 182 Comment
  SFV8311  Pedicularis densiflora L. Fenster 1964-3-22 18 San Mateo Sawyer Ridge Mountain Range. Crystal Springs Lake drainage area. Sawyer Camp Road, 3 miles from Skyline Blvd. Flat top of east facing slope. 152 Comment
  CAS-BOT-BC266666  Pedicularis dudleyi J. H. Thomas 1961-6-20 9550 San Mateo Portola State Park, near junction of Peters and Pescadero Creeks, from near rangers station to the camp grounds 152 Comment
  CAS-BOT-BC266667  Pedicularis dudleyi Rimo Bacigalupi 1923-1-1 s.n. San Mateo Peters Creek near Pescadero Creek Comment
  CAS-BOT-BC389702  Pediomelum californicum L. Sigal 1969-7-1 s.n. San Mateo Belmont Canyon out of Water Dog Lake Comment
  CAS-BOT-BC327977  Pentachaeta alsinoides John H. Thomas 1958-5-10 7140 San Mateo Jasper Ridge, about 5 mi SW of Palo Alto. 182 Comment
  CAS-BOT-BC327980  Pentachaeta alsinoides John H. Thomas 1961-4-29 9184 San Mateo Jasper Ridge, about 5 mi SW of Palo Alto. 182 Comment
  RSA137339  Pentachaeta alsinoides John H. Thomas 1958-5-10 7155 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  JROH1161  Pentachaeta alsinoides John Hunter Thomas 1989-4-20 24639 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  UC133379  Pentachaeta exilis C. F. Baker 1902-4-4 446 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC77005  Pentagramma triangularis subsp. triangularis Elizabeth McClintock 1967-4-16 s.n. San Mateo San Bruno Mountains - Buckeye Canyon Comment
  UCSB25635  Pentagramma triangularis subsp. triangularis Masero, Ann 1967-3-21 San Mateo Butano Creek, 3.3 miles east of junction of Cloverdale Road and Canyon Road 106 Comment
  JROH3280  Persicaria maculosa Toni Corelli 2004-10-20 281 b San Mateo Jasper Ridge Biological Preserve, Stanford University; east of Road C, below low flow crossing, on a moist embankment 80 Comment
  CAS-BOT-BC356062  Petasites Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  JROH1164  Petasites frigidus var. palmatus Carol Zabel 1989-8-11 27 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek near confluence with Bear Creek Comment
  RSA120041  Petunia parviflora W. R. Dudley 1909-10-31 s.n. San Mateo Searsville Lake. The Santa Cruz Mtn Peninsula. Comment
  SJSU7544  Phacelia distans L. S. Rose 1963-5-23 63060 San Mateo Thornton Beach Park 30 Comment
  OBI48681  Phacelia divaricata Lewis S. Rose 1937-4-24 37231 San Mateo Emerald Lake, W of Redwood City 107 Comment
  RSA152046  Phacelia malvifolia John H. Thomas 1961-5-7 9282 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  UC881192  Phacelia malvifolia John Thomas Howell 1938-5-1 13768 San Mateo Colma Canyon Comment
  JROH2762  Phacelia nemoralis subsp. nemoralis John H. Thomas 1973-6-15 16846 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC154292  Phacelia ramosissima Class Collection 1940-1-1 s.n. San Mateo Dunes, Ano Nuevo Point Comment
  CDA2281  Phalaris aquatica T. C. Fuller 1967-6-13 15947 San Mateo Road to San Mateo, 0.7 miles east of Skyline Blvd., east above Crystal Springs Lake. 0 Comment
  CHSC56636  Phalaris aquatica Steven Triano 1988-5-24 176 San Mateo On the sw corner of the jct. of Portola Road and Old La Honda Road, ca 3.2 mi s of Woodside. 115 Comment
  JROH5357  Phalaris aquatica John Hunter Thomas 1978-7-14 19261 San Mateo Jasper Ridge Biological Preserve, Stanford University. New low flow crossing of San Francisquito Creek. Comment
  JROH5377  Phalaris aquatica John Hunter Thomas 1989-6-6 24760 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA118050  Phalaris aquatica J. T. Howell 1954-7-8 30009 San Mateo Skyline Blvd. above (west of) San Bruno Comment
  RSA187374  Phalaris aquatica John H. Thomas 1958-8-1 7375 San Mateo Just N of mouth of San Gregorio Creek 30 Comment
  CAS-BOT-BC259001  Phalaris californica A. D. E. Elmer 1903-6-1 4699 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC259006  Phalaris californica Javier Penalosa 1963-3-30 2737 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF 289 Comment
  UC650502  Phalaris californica Ira L. Wiggins 1928-4-22 2943 San Mateo Moss Beach Comment
  SEINET10887598  Phalaris californica Adolph D. E. Elmer Elmer 4699 San Mateo Crystal Springs Lake. Comment
  CDA2317  Phalaris paradoxa T. C. Fuller 1967-6-13 15948 San Mateo Road to San Mateo, 0.7 mile east of Skyline Blvd., east above Crystal Springs Lake. 0 Comment
  RSA17943  Phalaris paradoxa C. B. Wolf, Le Roy Abrams 1927-6-4 s.n. San Mateo San Gregorio Comment
  JROH2768  Pholistoma auritum var. auritum John Hunter Thomas 1981-5-5 20540 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD38211  Phoradendron leucarpum subsp. tomentosum Edith A. Purer 1934-8-14 5914 San Mateo On highway, west of Stanford University campus Comment
  JROH4255  Phyla nodiflora Carol Zabel, Ann Lambrecht, Toni Corelli 2001-5-21 42 San Mateo Jasper Ridge Biological Preserve, Stanford University; bank of Searsville Lake, just below Searsville Lab 105 Comment
  SEINET9341363  Phyllospadix scouleri Unknown 1966-8-8 San Mateo Half Moon Bay Comment
  UC2056144  Phyllospadix scouleri Melvin Parris, Steve Davenport 1980-11-20 13 San Mateo Ano Nuevo Island Comment
  CAS-BOT-BC251003  Phyllostachys bambusoides Elizabeth McClintock; Paul Reeberg 1989-3-14 s.n. San Mateo San Bruno Mountains. Near base of Old Quarry Road, Colma Canyon 121 Comment
  CAS-BOT-BC142225  Physocarpus capitatus George Oberlander 1950-7-15 1041 San Mateo San Andreas Valley - San Francisco Watershed Reserve Comment
  JROH3720  Physocarpus capitatus John H. Thomas 1962-7-15 9915 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oak woodland near northern end of ridge Comment
  UCD23296  Physocarpus capitatus Alan T. Whittemore 1976-5-29 116 San Mateo San Francisco Fish and Game Refuge. East side of Lower Crystal Springs Lake, on Sawyer's Camp Road, between L. San Andreas and Crystal Springs Lake. 100 Comment
  SEINET3819247 Image available Physocarpus capitatus Lewis S. Rose 1939-5-5 39093 San Mateo San Mateo Canyon. 46 Comment
  CAS-BOT-BC206942  Pickeringia montana var. montana J. I. McMurphy 1906-5-20 80 San Mateo King's Mt. Road, Santa Cruz Mts. - Santa Cruz Peninsula 457 Comment
  CAS-BOT-BC78643  Pinus halepensis Elizabeth McClintock 1989-3-1 s.n. San Mateo Brisbane, above Crocker Industrial Park Comment
  RSA18516  Piperia transversa Carl B. Wolf 1927-7-14 603 San Mateo Summit of Kings Mountain Rd. Comment
  JEPS125908  Pittosporum crassifolium D. W. Taylor 2002-3-30 17961 San Mateo Sea bluff on S edge outlet of Martini Creek, Montara State Beach Comment
  CAS-BOT-BC228135  Plagiobothrys chorisianus Josephine D. Randall 1907-7-23 12 San Mateo The Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  CAS-BOT-BC228124  Plagiobothrys chorisianus Roxana S. Ferris 1921-4-7 2136 San Mateo San Bruno Mountain 30 Comment
  POM190562  Plagiobothrys chorisianus D. D. Keck 1932-4-18 1435 San Mateo Burlingame, on the shore of San Francisco Bay. 2 Comment
  CAS-BOT-BC228162  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1894-4-21 s.n. San Mateo The Santa Cruz Mountain Peninsula. Near Crystal Springs Reservoir Comment
  JROH1408  Plagiobothrys chorisianus var. hickmanii John H. Thomas 1967-4-28 12726 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1433  Plagiobothrys nothofulvus John Hunter Thomas 1991-4-11 24979 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UC511480  Plagiobothrys nothofulvus Ira L. Wiggins 1933-4-17 6651 San Mateo 2 mi w Redwood City; Emeral Lake hills Comment
  JROH3106  Plantago coronopus John Rawlings,Ann Lambrecht 2013-4-30 1170 San Mateo Jasper Ridge Biological Preserve, Stanford University; in Rd B vicinity of Dennis Martin site 79 Comment
  SBBG25091  Plantago coronopus D. Myrick 1966-6-11 1449 San Mateo approach to Pescadero along Pescadero Crk Comment
  JEPS22019  Plantago elongata G. Thomas Robbins with S. Galen Smith 1958-6-9 3860 San Mateo .12 mi w State Highway 1 (0.5 mi n of bridge crossing Pescadero Creek) Comment
  JROH3117  Plantago erecta John Hunter Thomas 1981-4-23 20483 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA278542  Plantago erecta subsp. erecta T. C. Emmel 1965-4-4 32 San Mateo San Bruno Hills, above Daly City and Brisbane. Comment
  POM61248  Plantago lanceolata Copeland 1903-6-5 3325 San Mateo Montara Point. 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
  UCD124581  Plantago lanceolata J. Doty 1969-3-26 597 San Mateo 100 yards east of the junction of State Highways 35 and 92, near summit of Coast Range. Comment
  UCSB18574  Plantago lanceolata Muirhead, M. 1964-4-17 San Mateo Crocker Estate, Hillsborough 76 Comment
  UC1192027  Plantago major Malcolm A. Nobs and S. Galen Smith 1949-8-26 1584 San Mateo about 1 mi s Half Moon Bay Comment
  RSA18371  Plantago maritima Carl B. Wolf 1927-6-29 537 San Mateo Along coast south of Pebble Beach near Pescadero. Comment
  UCD124622  Plantago maritima G. Thomas Robbins 1953-8-29 3617 San Mateo Just south of the Olympic Golf Club and the San Francisco City and County line. 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
  JROH3104  Platystemon californicus D. D. Davis 1903-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  RSA6413  Platystemon californicus var. californicus D. D. Keck 1932-5-6 1473 San Mateo Burlingame. Comment
  JROH5878  Plectritis congesta subsp. brachystemon Diane Renshaw 2014-4-30 1222 San Mateo Jasper Ridge Biological Preserve, Stanford University; by fallen tree between Alan's Mountain (utility pole mound) and San Francisquito Creek 89 Comment
  UC1190045  Pleuropogon californicus J. I. McMurphy 1906-5-8 San Mateo road near head of Crystal Springs Lakes (by road from Woodside to Byrnes Store) Comment
  JROH5767  Pleuropogon californicus var. californicus John Rawlings 2006-5-1 0848 San Mateo Jasper Ridge Biological Preserve, Stanford University. Vernally wet area between Sand Hill Road and main entry road to preserve. 121 Comment
  UCD92188  Poa August L. Hormay 1932-5-29 s.n. San Mateo Bay shore, San Bruno. Comment
  CAS-BOT-BC255563  Poa annua W. R. Dudley 1894-3-26 s.n. San Mateo Santa Cruz Mountain Peninsula. By road from Pescadero to San Gregorio Comment
  CAS-BOT-BC258900  Poa annua Peter Rubtzoff 1988-5-3 9913 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
  JEPS71266  Poa annua unknown 1919-7-22 211 San Mateo Ano Nuevo Comment
  JROH5401  Poa annua John Hunter Thomas 1980-11-27 20181 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5404  Poa annua John Hunter Thomas 1982-4-28 20869 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5618  Poa bulbosa subsp. vivipara John Rawlings 2014-5-3 1219 San Mateo Jasper Ridge Biological Preserve, Stanford University. At downhill side of trail 14 about midway between dam and road C, near the lone Amelanchier utahensis. 98 Comment
  JEPS21703  Poa douglasii W. R. Dudley 1900-3-18 San Mateo San Pedro Beach Comment
  RSA135727  Poa howellii W. R. Dudley 1900-3-17 s.n. San Mateo Ravine north of Seal Cove. Comment
  SJSU7645  Poa kelloggii T. J. Sammis 1974-5-16 San Mateo redwood forest between Pescadero Road & Pescadero Creek c. 1 mi W of Loma Mar Comment
  CAS-BOT-BC173840  Poa pratensis Peter Rubtzoff 1976-5-22 8544 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH5417  Poa pratensis subsp. pratensis John Hunter Thomas 1982-6-7 21028 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD164678  Poa pratensis subsp. pratensis Peter Rubtzoff 1976-5-22 8544 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  POM204948  Poa secunda E. B. Copeland 1903-4-20 1920 San Mateo San Andreas Lake Comment
  SEINET3130238  Poa secunda L. R. Abrams 1902-5-4 2408 San Mateo Woodside Comment
  JROH5676  Poa secunda subsp. secunda John Rawlings 2015-3-15 1459 San Mateo Jasper Ridge Biological Preserve, Stanford University; east serpentine near Escobar Gate. 160 Comment
  CAS-BOT-BC173841  Poa trivialis Peter Rubtzoff 1977-6-7 9030 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC244250  Poa unilateralis H. L. Mason 1921-5-28 s.n. San Mateo Pebble Peach, near Pescadero Comment
  CAS-BOT-BC244251  Poa unilateralis Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mile N of Pigeon Point and about 39 miles S of San Francisco Comment
  SJSU15794  Poa unilateralis subsp. unilateralis Toni Corelli 2010-7-8 643 San Mateo Bean Hollow State Beach along Arroyo de los Frijoles Trail 10 Comment
  SJSU15813  Poa unilateralis subsp. unilateralis John Rawlings, Toni Corelli 2016-5-13 1895 San Mateo Bean Hollow State Beach south bluff above beach 11 Comment
  JROH2857  Pogogyne serpylloides D. E. Breedlove 1971-5-5 19325 San Mateo Jasper Ridge Biological Preserve, Stanford University; on bluff above San Fancisquito Creek, 500 yards below Searsville Dam Comment
  SDSU7050  Pogogyne serpylloides D. F Howe 1969-6-10 San Mateo 18.5 miles north of San Mateo- Santa Cruz Co. Line on #1, San Mateo Co. Comment
  CAS-BOT-BC413805  Polycarpon tetraphyllum R. I. Gilbreath 1975-8-1 0085 San Mateo School yard near 366 Alberta Way, Hillsborough 167 Comment
  JROH3261  Polygonum aviculare subsp. depressum John Hunter Thomas 1977-6-16 18795 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
  CAS-BOT-BC109245  Polygonum paronychia David D. Keck 1931-10-5 1288 San Mateo 1 mile north of Salada Beach. 200 m. from ocean. Comment
  UC483492  Polygonum paronychia Ira L. Wiggins 1929-7-4 3795 San Mateo Pescadero Beach; sea bluffs Comment
  UCR240610  Polygonum paronychia T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3526 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  RSA88326  Polygonum patulum J. T. Howell 1953-6-3 29057 San Mateo Bayshore Hwy, Redwood City. Comment
  UC42913  Polypodium J. Burtt Davy 1893-6-22 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC76903  Polypodium californicum C. F. Baker 1902-1-15 235 San Mateo West side King's Mountain Comment
  CAS-BOT-BC76913  Polypodium californicum Reed C. Rollins 1942-4-30 3014 San Mateo San Bruno Hills, 1 mile south of Daly City. Comment
  UC931949  Polypodium scouleri Verne Grant and Alva Grant 1946-8-30 7851 San Mateo ranch 1 mi s of Daly City (on Hwy. 5) Comment
  CAS-BOT-BC72108  Polypodium scouleri Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Wax Myrtle Ravine Comment
  CAS-BOT-BC72110  Polypodium scouleri George Oberlander 1949-7-24 305 San Mateo Cypress Cayhill Range Comment
  UCD164005  Polypodium scouleri Peter Rubtzoff 1977-11-24 9143 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
  JROH5429  Polypogon interruptus John H. Thomas 1961-6-14 9545 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along stream below dam. Comment
  JROH5430  Polypogon interruptus John H. Thomas 1962-7-15 9921 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek below dam. Comment
  UC1100394  Polypogon interruptus Malcolm A. Nobs and S. Galen Smith 1949-8-26 1611 San Mateo about 1 mi s Pigeon Point; s of Pigeon Point Comment
  CAS-BOT-BC237353  Polypogon monspeliensis J. H. Thomas 1963-7-19 10184 San Mateo Ano Nuevo Point Comment
  SJSU15937  Polypogon monspeliensis John Rawlings, Ken Hickman 2016-5-26 1808 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
  UCD91350  Polypogon monspeliensis Herbert L. Mason; Verne Grant 1946-8-28 13094 San Mateo On Highway 5, about 3 miles south of Daly City Road. Comment
  JROH4820  Polypogon viridis John Hunter Thomas 1983-7-7 22816 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just below dam. Comment
  SD27443  Polystichum aculeatum Kate O. Sessions 1879-1 San Mateo La Honda Comment
  JROH47  Polystichum dudleyi Lawrence J. Winship 1974-11-16 10 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC6609  Polystichum dudleyi W. R. Dudley 1903-5-2 s.n. San Mateo Near bridge, Peter's Creek, Santa Cruz Mts. Comment
  RSA430495  Polystichum dudleyi Lyman Benson 1934-8-19 6115 San Mateo La Honde Grade, Santa Cruz Mountains, transition zone 305 Comment
  SEINET10665573 Image available Polystichum dudleyi William R. Dudley 1903-5-2 Dudley s.n. San Mateo Near bridge. Peters Creek. Santa Cruz Mts. Comment
  CAS-BOT-BC76608  Polystichum munitum J. H. Thomas 1949-3-29 198 San Mateo King's Mountain Comment
  CAS-BOT-BC76610  Polystichum munitum David D. Keck 1932-2-12 1360 San Mateo La Honda road, east slope of Coast Range above Searsville Lake. 304 Comment
  CAS-BOT-BC384614  Polystichum munitum M. K. Wicksten 1991-7-8 s.n. San Mateo Huddart PRK Comment
  RSA11001  Polystichum munitum C. B. Wolf 1928-3-14 1538 San Mateo La Honda Grade, Santa Cruz Mountains. Comment
  RSA681612  Populus fremontii Annuschka Deb 1989-7-28 328 San Mateo YBN Demonstration Garden. Comment
  JEPS42973  Potamogeton nodosus W. L. Jepson 1910-8-18 4165 San Mateo White House Creek Comment
  CAS-BOT-BC453998  Potamogeton pectinatus George Oberlander 1950-7-15 1074 San Mateo San Francisco Watershed Reserve. San Andreas Lake Comment
  SEINET11916088  Potentilla anserina Unknown 1930-1 9004 San Mateo Half Moon Bay 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
  CAS-BOT-BC141936  Potentilla anserina subsp. pacifica J. H. Thomas 1949-6-4 590 San Mateo Along coast, 1.4 miles S. of road to Pescadero Comment
  CAS-BOT-BC141937  Potentilla anserina subsp. pacifica W. R. Dudley 1896-4-18 s.n. San Mateo Pebble Beach at Pescadero - Santa Cruz Peninsula Comment
  CAS-BOT-BC141930  Potentilla anserina subsp. pacifica Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Guadalupe Road - San Bruno Mountains Comment
  CAS-BOT-BC143304  Potentilla hickmanii Mrs. E. C. Sutliffe 1933-3-10 s.n. San Mateo Moss Beach Comment
  JROH4667  Prosartes hookeri W. R. Dudley 1898-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC516350  Prosartes hookeri George Oberlander 1950-3-11 587 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve Comment
  CAS-BOT-BC516351  Prosartes hookeri M. N. Paulson 1915-4-1 s.n. San Mateo Kings Mountain Comment
  CAS-BOT-BC516356  Prosartes hookeri W. R. Dudley 1893-4-1 s.n. San Mateo Bear Gulch Road, Santa Cruz Mts., Santa Cruz Peninsula Comment
  CAS-BOT-BC516357  Prosartes hookeri Ira L. Wiggins 1928-4-14 2912 San Mateo Alpine Creek Road Comment
  CAS-BOT-BC517395  Prosartes smithii H. L. Mason 1917-4-1 s.n. San Mateo Kings Mountain Comment
  HSC24024  Prunella vulgaris subsp. lanceolata Mary Katherine Wicksten 1971-6-24 123 San Mateo Huddart Park, near entrance Comment
  SD27751  Prunella vulgaris var. lanceolata Carl B. Wolf 1927-6-29 551 San Mateo Along the coast south of Pescadero at Pebble Beach. Comment
  POM140371  Prunus emarginata C. F. Baker 1902-5-1 691 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC154498  Prunus ilicifolia George Oberlander 1949-8-20 388 San Mateo Sweeney Ridge Comment
  CAS-BOT-BC154502  Prunus ilicifolia Fred Hemphill 1973-4-22 838 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  UC1128403  Prunus ilicifolia G. E. Sindel 1935-8-27 339 San Mateo 1 mi w Crystal Spring Lake 121 Comment
  CAS-BOT-BC356857  Pseudognaphalium californicum Josephine D. Randall 1907-7-23 47 San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  JROH751  Pseudognaphalium californicum W. R. Dudley 1895-6-14 299 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA191946  Pseudognaphalium californicum R. F. Thorne, Percy C. Everett 1963-6-9 32231 San Mateo On top of San Bruno Mountain. 335 Comment
  CAS-BOT-BC357119  Pseudognaphalium luteoalbum John Thomas Howell 1935-1-13 12578 San Mateo Lake San Andreas Comment
  CAS-BOT-BC357129  Pseudognaphalium luteoalbum Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Crystal Cave Canyon 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-BC357508  Pseudognaphalium ramosissimum Janet Jones 1978-8-28 s.n. San Mateo Near Montara Comment
  SJSU7541  Pseudognaphalium stramineum L. S. Rose 1966-8-6 66079 San Mateo Colma Canyon, San Bruno Mt 121 Comment
  CAS-BOT-BC85907  Pseudotsuga menziesii W. R. Dudley 1894-3-24 s.n. San Mateo Santa Cruz Mountain Peninsula, bank of Pescadero Cr. Comment
  CAS-BOT-BC85908  Pseudotsuga menziesii W. R. Dudley 1893-12-3 s.n. San Mateo Santa Cruz Mountain Peninsula, Bear Gulch Comment
  POM223619  Pseudotsuga menziesii S. S. Berry 1909-3-13 s.n. San Mateo King s Mountain. 640 Comment
  RSA762816  Pseudotsuga menziesii Lyman Benson 1929-3-2 981 San Mateo Hill east of Lake Searsville. Comment
  CAS-BOT-BC85910  Pseudotsuga menziesii W. R. Dudley 1897-4-10 s.n. San Mateo Santa Cruz Mountain Peninsula, above Alpine School House, Black Mt. Comment
  JEPS27364  Psilocarphus tenellus Rimo Bacigalupi with J. Roof and L. Heckard 1961-4-24 7624 San Mateo just e KRON television tower and station (below and se of end of paved ridge-top road on Guadalupe Valley side of summit San Bruno Mountain); on Guadalupe Valley side of summit of San Bruno Mountain 304 Comment
  JROH1180  Psilocarphus tenellus John H. Thomas 1963-5-12 10087 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH10  Pteridium aquilinum var. pubescens John H. Thomas 1970-5-16 15633 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UCD92957  Puccinellia maritima August L. Hormay 1932-5-29 s.n. San Mateo San Bruno. Comment
  CAS-BOT-BC460836  Pyrola aphylla H. L. Mason 1921-7-3 s.n. San Mateo Butano Ridge Comment
  CAS-BOT-BC460837  Pyrola aphylla A. D. E. Elmer 1903-6-1 4297 San Mateo Pescadero Comment
  POM88668  Pyrrocoma racemosa L. R. Abrams 1901-09 2211 San Mateo Cooley Landing. Comment
  JEPS21656  Pyrrocoma racemosa var. racemosa S. D. Halsey 1908-9-15 San Mateo Slough near Cooleys Landing, near Palo Alto. Comment
  CAS-BOT-BC362361  Pyrrocoma racemosa var. racemosa L. R. Abrams 1906-9-29 s.n. San Mateo Cooley's [Cooley] Landing Comment
  JROH2539  Quercus X chasei Carol Zabel 2001-9-1 44 San Mateo Jasper Ridge Biological Preserve, Stanford University; lower Trail 5 going down below switchback, first oak past valley oak with exposed roots, creek side of trail Comment
  CAS-BOT-BC62713  Quercus X chasei B. Bartholomew 1983-8-28 1482 San Mateo 1.2 mi. N of Skyline Blvd. on Page Mill Road on the N side of the road, close to the Santa Clara County line 640 Comment
  UCD14593  Quercus agrifolia Edmond W. Holm 1993-10-20 s.n. San Mateo California, San Mateo Co.; Huddart Park, near Sequoia Picnic Area; Comment
  UCD23291  Quercus agrifolia Alan T. Whittemore 1976-5-29 103 San Mateo Intersection of Polyhemus Creek Road and Ticonderoga Street, San Mateo. 140 Comment
  UCD45030  Quercus agrifolia J. M. Tucker 1946-3-2 1373 San Mateo Tree on a hillside, associated with Q. wislizenii; about 4 miles east of Pescadero, San Mateo County, California. Comment
  SEINET10962205  Quercus agrifolia Lewis S. Rose 1964-1 Rose 64012 San Mateo Emerald Lake, w. of Redwood City hills. 122 Comment
  SEINET13953029 Image available Quercus agrifolia Lewis S. Rose 1964-1 64012 San Mateo Emerald Lake, west of Redwood City hills, 400 feet in altitude 122 Comment
  SEINET9326838  Quercus agrifolia Unknown 1938-11-6 San Mateo Woodside, hill slopes. Comment
  JROH2471  Quercus douglasii John H. Thomas 1968-4-19 14296 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2474  Quercus douglasii John Hunter Thomas 1984-10-22 23487 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2476  Quercus douglasii John Hunter Thomas 1988-4-6 24374 San Mateo Jasper Ridge Biological Preserve, Stanford University; roadside below dam. Comment
  RSA623990  Quercus douglasii R. Hoffough 1929-4-27 272 San Mateo Jasper Ridge, Santa Cruz Mountains Comment
Read comments
Dec 6 2010
  CAS-BOT-BC94277  Quercus durata John H. Thomas 1971-5-2 15858 San Mateo near intersection of Canada and Edgewater roads. About 4 miles SW of center of Redwood City 304 Comment
  CAS-BOT-BC94278  Quercus durata George Oberlander 1949-7-30 359 San Mateo San Francisco Watershed Reserve, southern boundary Comment
  JROH2489  Quercus durata var. durata John H. Thomas 1975-5-2 17851 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD45969  Quercus durata var. durata Lewis S. Rose 1964-9-5 64068 San Mateo Emerald Lake, W. of Redwood City. Alt. ca. 800 ft. 243 Comment
  CAS-BOT-BC105388  Quercus kelloggii W. R. Dudley 1894-10-1 s.n. San Mateo Santa Cruz Mountain Peninsula, near Woodside road Comment
  CAS-BOT-BC105403  Quercus kelloggii J. H. Thomas 1955-3-21 4694 San Mateo New La Honda Road above Searsville and Skyline Blvd. 1.8 miles from Searsville. E slope of the Santa Cruz Mountains 274 Comment
  JROH2505  Quercus kelloggii John Hunter Thomas 1981-4-7 20298 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5942  Quercus kelloggii John Rawlings, Sara Timby 2017-3-3 1964 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 5 96 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-BC62897  Quercus lobata John H. Thomas 1974-4-11 17136 San Mateo SE of Canada Road and Edgewood Road. NW of Woodside 152 Comment
  UCD47146  Quercus parvula var. shrevei J. M. Tucker 1946-3-2 1370 A San Mateo Road to Oakland Y.M.C.A Camp, off La Honda-Pescadero road, 6-7 miles east of Pescadero, San Mateo County, California. Comment
  CAS-BOT-BC134785  Quercus wislizeni James McMurphy 1902-5-17 s.n. San Mateo Road to Kings Mt. Comment
  CAS-BOT-BC134794  Quercus wislizeni H. L. Mason 1929-12-1 s.n. San Mateo Swanton Comment
  JROH1201  Rafinesquia californica John H. Thomas 1967-5-31 12937 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC362552  Rafinesquia californica Theo. C. Zschokke 1903-7-10 s.n. San Mateo Santa Cruz Mountain Peninsula. New Grade Road, Black Mt. Comment
  JROH1199  Rafinesquia californica John H. Thomas 1965-5-12 10645 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET209201  Ranunculus bloomeri Inez Smith 1915-3-15 San Mateo Hillsboro Comment
  SEINET3816595 Image available Ranunculus bloomeri Lewis S. Rose 1934-3-11 34051 San Mateo Visitacion Valley. Comment
  JEPS60724  Ranunculus californicus W. L. Jepson 1921-4-3 9116 San Mateo canyon near Colma Comment
  RSA399414  Ranunculus californicus L. S. Rose 1935-4-16 35097 San Mateo Emerald Lake, W of Redwood City Comment
  SD1764  Ranunculus californicus Ulysses S. Grant IV June 1925 San Mateo Near La Honda Comment
  RSA100978  Ranunculus californicus G. Oberlander 1949-4-2 20 San Mateo Top of Sweeney ridge, San Francisco Watershed Reserve Comment
  RSA399413  Ranunculus californicus Paul C. Silva 1948-1-31 2627 San Mateo Old La Honda Grade, 1 mi. S of Skyline Blvd. 457 Comment
  SEINET5569721  Ranunculus californicus H. S. Gentry 1931-1 22 San Mateo Collected on slope W of Pacific Bone Coal Fertilizer Co. in South San Francisco. Comment
  CAS-BOT-BC378535  Ranunculus californicus var. californicus John H. Thomas 1958-3-19 7070 San Mateo east facing slope of San Bruno Mountain, just north of South San Francisco 00000000000000000000000 9 Comment
  CAS-BOT-BC378524  Ranunculus californicus var. californicus Margaret A. Barry 1937-5-8 56 San Mateo grassland on Coal Mine Ridge Comment
  RSA120769  Ranunculus californicus var. cuneatus S. S. Tillett, I. Sternback 1956-6-24 537 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  JROH3477  Ranunculus hebecarpus John H. Thomas 1969-4-20 14894 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA101003  Ranunculus lobbii George Oberlander 1950-3-18 s.n. San Mateo Upper Crystal Springs Lake, San Francisco Watershed Reserve Comment
  JEPS85712  Ranunculus pusillus L. R. Heckard and J. H. Thomas 1972-4-16 2890 San Mateo ca 1 1/2 mi s Pulgas Water Temple (along old Canada road (private), sw of Upper Crystal Springs Reservoir) 121 Comment
  UCD20153  Ranunculus trilobus Phil Greer 2002-4-17 s.n. San Mateo Hwy 101, in Half Moon Bay. Comment
  JROH3502  Ranunculus uncinatus John Rawlings 2013-4-16 1144 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 1. 79 Comment
  OBI27163  Raphanus sativus Laura Wells 1970-2-1 8 San Mateo Half Moon Bay about 14 mi W of San Mateo Comment
  POM283034  Rhamnus californica Lyman Benson 1937-7-8 8447 San Mateo Lake Searsville, Stanford, Mt. Range: Santa Cruz; Watershed: San Francisco Bay 122 Comment
  UC1121743  Rhamnus californica A. E. Wieslander 1935-2-2 505 San Mateo 0.5 mi se Pigeon Pt.; Santa Cruz Quad. 30 Comment
  UC33635  Rhamnus californica subsp. californica Jos. Burtt Davy 1893-6-22 841 San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC55885  Rhamnus crocea Elizabeth McClintock; Carlyn Halde; Walter Knight 1963-6-23 s.n. San Mateo Lower part of Colma Canyon Comment
  CAS-BOT-BC55903  Rhamnus crocea George Oberlander 1950-5-21 967 San Mateo Northern Cahill Ridge Comment
  JROH3557  Rhamnus crocea Carl B. Wolf 1927-5-31 407 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM243722  Rhamnus crocea Carl B. Wolf 1928-3-16 1540 San Mateo Jasper ridge, near Searsville Lake Comment
  CAS-BOT-BC56665  Rhododendron occidentale William R. Dudley 1895-6-6 s.n. San Mateo Pescadero Cr. (near Iverson's) Comment
  UC306552  Rhododendron occidentale A. D. E. Elmer 1903-6-1 4298 San Mateo Butano Creek Comment
  CAS-BOT-BC92491  Ribes aureum var. gracillimum A. D. E. Elmer 1903-5-1 4514 San Mateo Portola. Comment
  CAS-BOT-BC92492  Ribes aureum var. gracillimum Margaret A. Barry 1938-4-21 241 San Mateo By Los Trancos Creek near Coal Mine Ridge. Comment
  UCR2941  Ribes aureum var. gracillimum Wm. Horn Jr. 1963-4-9 620409- 02 San Mateo San Francisco Bay region, Hillsborough, 2240 Redington Rd. 30 Comment
  RSA44518  Ribes californicum L. S. Rose 1949-3-18 49007 San Mateo Hills west of Belmont. 91 Comment
  CAS-BOT-BC92997  Ribes californicum var. californicum Lewis S. Rose 1933-6-9 33226 San Mateo Belmont. Comment
  CAS-BOT-BC93002  Ribes californicum var. californicum A. D. E. Elmer 1903-3-1 4683 San Mateo Portola. Comment
  CAS-BOT-BC93011  Ribes californicum var. californicum Adoph Holme 1929-4-1 s.n. San Mateo Berenda Farm near Redwood City. Comment
  UCR70845  Ribes californicum var. californicum L. S. Rose 1949-3-18 49007 San Mateo San Francisco Bay Region, Hillsides west of Belmont 91 Comment
  CAS-BOT-BC173472  Ribes malvaceum D. E. Breedlove 1974-5-13 36205 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  SJSU279  Ribes malvaceum H. W. Marion 1936-3-8 San Mateo 0.25 mi E of Searsville L, near Stanford Univ Comment
  JROH2666  Ribes menziesii var. menziesii John H. Thomas 1960-3-1 8538 San Mateo Jasper Ridge Biological Preserve, Stanford University. In shaded areas near San Francisquito Creek. Comment
  JROH5605  Ribes menziesii var. menziesii John Rawlings 2014-3-25 1211 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Trail 2 -- one plant upslope and one downslope -- about 400 yards west of Zoology Cabin site. 80 Comment
  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-BC144607  Ribes sanguineum var. glutinosum David D. Keck 1932-6-1 1786 San Mateo Three miles north of La Honda, Santa Cruz Mtns. 365 Comment
  CAS-BOT-BC144645  Ribes sanguineum var. glutinosum Josephine D. Randall 1907-3-9 367 San Mateo Kings Mt. Comment
  JROH2675  Ribes sanguineum var. glutinosum John H. Thomas 1968-3-17 14174 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC75091  Ribes sanguineum var. glutinosum C. F. Baker 1902-1-15 241 San Mateo w side Kings Mountain Comment
  RSA0019103  Ribes sanguineum var. glutinosum I. L. Wiggins 1929-3-23 3371 San Mateo Road to Mud Lake, near Stanford University Comment
  RSA0019110  Ribes sanguineum var. glutinosum Lyman Benson 1929-3-5 976 San Mateo King s Mountain. Comment
  UC1127452  Ribes victoris R. C. Wilson 1935-7-17 242 San Mateo 2 mi se Pescadero; Santa Cruz Quadrangle Comment
  CAS-BOT-BC363094  Rigiopappus leptocladus Le Roy Abrams 1902-5-4 2401 San Mateo Woodside Comment
  POM53912  Rigiopappus leptocladus C. F. Baker 1902-5-4 754 San Mateo Woodside Comment
  RSA176748  Rigiopappus leptocladus John H. Thomas 1963-5-15 10089 San Mateo Jasper Ridge Biological Experimental Area. 5 miles SW of Palo Alto 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
  POM204034  Rigiopappus leptocladus L. S. Rose 1933-4-30 33130 San Mateo Redwood City Comment
  CDA9435  Romanzoffia californica D. G. Kelch 2002-5-13 s.n. San Mateo Pilarcitos Canyon, SF watershed. 0 Comment
  JROH1577  Rorippa curvisiliqua Ann Lambrecht, Toni Corelli 2004-9-15 14 San Mateo Jasper Ridge Biological Preserve, Stanford University. About 10 m E of Sand Hill Rd culvert 104 Comment
  UC10721  Rorippa curvisiliqua Alice Eastwood 1896-4-1 San Mateo between Crystal Springs and Millbrae; bet. Crystal Springs and Millbrae Comment
  JROH3756  Rosa californica Toni Corelli 2007-8-29 335 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 1 just before first redwood grove, above San Francisquito Creek 80 Comment
  CAS-BOT-BC146690  Rosa gymnocarpa Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Bitter-cherry Ridge Comment
  CAS-BOT-BC146691  Rosa gymnocarpa Walter Knight; Irja Knight 1964-5-30 601 San Mateo Colma Canyon Comment
  CAS-BOT-BC146696  Rosa gymnocarpa Margaret A. Barry 1937-5-15 85 San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC146697  Rosa gymnocarpa George Oberlander 1949-4-30 134 San Mateo Pilarcitos Canyon Comment
  JROH3765  Rosa laevigata Carol Zabel 2004-5-19 51 San Mateo Jasper Ridge Biological Preserve, Stanford University. About 30 feet north of main gate on Sand Hill Road. Comment
  UCD23294  Rosa rubiginosa Alan T. Whittemore 1976-5-29 112 San Mateo San Francisco Fish and Game Refuge. East side of Lower Crystal Springs Lake, on Sawyer's Camp Road. 94 Comment
  CDA33988  Rubus parviflorus D. G. Kelch 2011-3-13 11 .057 San Mateo Near Half Moon Bay along Capistrano Creek. Comment
  JROH3771  Rubus parviflorus John H. Thomas 1970-5-16 15632 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM222901  Rubus parviflorus var. velutinus S. S. Berry 1909-4-2 s.n. San Mateo Bear Creek Canyon Grade 244 Comment
  CAS-BOT-BC156662  Rubus spectabilis V. F. Hesse 1959-4-16 2587 San Mateo Gazos Creek near coast 45 Comment
  CAS-BOT-BC156764  Rubus spectabilis W. R. Dudley 1894-3-26 s.n. San Mateo Ravine of Spanishtown Creek Comment
  CAS-BOT-BC156769  Rubus spectabilis Walter Knight; Irja Knight 1965-4-11 s.n. San Mateo From bank of Colma Creek. Colma Canyon Comment
  CAS-BOT-BC157070  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6055 San Mateo Near Pescadero Comment
  CAS-BOT-BC157071  Rubus ursinus L. R. Abrams 1914-10-14 5128 San Mateo [Tunitos Canon] Tunitas Canyon 121 Comment
  CAS-BOT-BC157076  Rubus ursinus L. R. Abrams 1914-10-14 5130 San Mateo At Tunitas Comment
  CAS-BOT-BC157077  Rubus ursinus L. R. Abrams 1914-10-14 5131 San Mateo Tunitas [Canon] Canyon Comment
  CAS-BOT-BC157080  Rubus ursinus L. R. Abrams 1914-10-14 5134 San Mateo Tunitas [Canon] Canyon Comment
  CAS-BOT-BC157086  Rubus ursinus Walter Knight; Irja Knight 1965-3-15 s.n. San Mateo Colma Canyon. San Bruno Mt. Comment
  CAS-BOT-BC157092  Rubus ursinus A. D. E. Elmer 1903-5-1 4788 San Mateo Spanishtown Comment
  CAS-BOT-BC157100  Rubus ursinus Peter H. Raven 1950-4-30 1972 San Mateo Above streets of Montara 15 Comment
  CAS-BOT-BC422090  Rumex acetosella Elizabeth McClintock; Paul Reeberg 1989-8-31 s.n. San Mateo San Bruno Mountains. Willow Pond. Comment
  CAS-BOT-BC422091  Rumex acetosella Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain. Slope above Hillside Blvd., South San Francisco. Comment
  CAS-BOT-BC422292  Rumex californicus Phillip Wheeler 1965-6-8 s.n. San Mateo San Bruno Mountain. Bayshore Comment
  JROH3301  Rumex conglomeratus John Hunter Thomas 1982-6-7 21030 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3304  Rumex conglomeratus John Hunter Thomas 1989-6-13 24768 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5665  Rumex conglomeratus John Rawlings 2014-8-12 1273 San Mateo Jasper Ridge Biological Preserve, Stanford University; dry San Francisquito Creek, between low flow crossing and downstream serpentine outcrop 79 Comment
  CAS-BOT-BC421822  Rumex conglomeratus John H. Thomas 1963-5-20 10145 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC421572  Rumex crassus John H. Thomas 1963-5-20 10149 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC433708  Rumex occidentalis W. R. Dudley 1894-5-1 s.n. San Mateo Santa Cruz Peninsula. Near San Mateo. Comment
  CAS-BOT-BC433825  Rumex pulcher John H. Thomas 1961-5-7 9293 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  JROH3306  Rumex pulcher John H. Thomas 1967-6-1 12964 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2211  Rupertia physodes John H. Thomas 1971-5-30 15955 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2214  Rupertia physodes John H. Thomas 1974-6-27 17455 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the low flow crossing below Searsville Dam Comment
  JROH2216  Rupertia physodes John H. Thomas 1976-5-26 18158 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS48781  Rupertia physodes James G. Daly 1934-1 380 San Mateo at junction of La Honda Road and Skyline Boulevard Santa Cruz Mts., San Gregorio watershed Comment
  SJSU4472  Ruta chalepensis A. J. Hutchko 1962-5-20 100 San Mateo by seaside walk near foot of Grove St, Half Moon Bay 15 Comment
  CDA38605  Rytidosperma caespitosum Eric Wrubel, Joe Woods 2011-7-5 NPS 19 San Mateo Pacifica. Golden Gate National Recreation Area, Sweeney Ridge Trail, 1/2 mile south of Vista College. 0 Comment
  CAS-BOT-BC239847  Rytidosperma penicillatum Bert Johnson 1989-3-17 s.n. San Mateo San Bruno Mountains. Randolph Ravine Comment
  RSA159420  Sagina apetala John H. Thomas 1961-5-14 9371 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  JROH1712  Sagina apetala John Pelton 1962-4-25 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near the horsemen's drinking facility Comment
  JROH1720  Sagina apetala John Hunter Thomas 1978-4-25 19145 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15762  Sagina decumbens subsp. occidentalis Toni Corelli 2010-5-13 612 San Mateo Pedro Point Headlands, Pacifica CA; off of South Ridge Road Trail in rocky ridge, scrub, native grassland area 180 Comment
  UC1191409  Salicornia europaea Herbert L. Mason and Malcolm A. Nobs 1948-12-11 713 San Mateo Highway 101, near shore of bay, at Whipple Avenue intersection, Redwood City Redwood City Comment
  POM216545  Salicornia virginica D. D. Keck 1931-9-27 1266 San Mateo Dumbarton Bridge. Comment
  JROH3849  Salix exigua var. hindsiana John Hunter Thomas 1985-4-25 23558 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway Comment
  JROH3851  Salix exigua var. hindsiana John Hunter Thomas 1988-4-28 24414 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway Comment
  JROH3856  Salix laevigata W. R. Dudley 1894-7-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near bridge at Ramsay's above Searsville Comment
  LA208828  Salix lasiandra David D. Keck; 1932-3-6 1392 San Mateo Searsville Lake Comment
  CAS-BOT-BC125367  Salix lasiandra var. lasiandra Peter H. Raven 1964-9-13 19671 San Mateo Half Moon Bay Comment
  JROH3871  Salix lasiandra var. lasiandra John H. Thomas 1968-5-17 14177 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3874  Salix lasiandra var. lasiandra John H. Thomas 1973-4-7 16520 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake Comment
  JROH3876  Salix lasiandra var. lasiandra John H. Thomas 1975-5-2 17854 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD111575  Salix lasiandra var. lasiandra Lewis S. Rose 1965-3-16 65007 San Mateo Searsville Lake. 121 Comment
  CAS-BOT-BC107126  Salix lasiolepis Walter Knight; Irja Knight 1965-2-28 868 San Mateo Colma Canyon - San Bruno Mt. Comment
  CAS-BOT-BC107127  Salix lasiolepis Walter Knight; Irja Knight 1965-2-28 867 San Mateo Colma Canyon - San Bruno Mt. 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
  RSA176658  Salix lasiolepis Peter H. Raven 1964-2-16 18742 San Mateo Just south of Lake San Andreas. Comment
  RSA178596  Salix lasiolepis L. R. Abrams 1915-3-13 5161 San Mateo Near jct of San Francisquito and Los Trancos creeks. About 2 miles from Stanford University. Comment
  UCR279843  Salix lasiolepis Peter Rubtzoff 1976-3-14 8445 San Mateo San Francisco Bay Region, 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 220 Comment
  JROH3854  Salix lasiolepis John H. Thomas 1968-3-17 14176 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC107248  Salix lasiolepis var. bigelovii Peter Rubtzoff 1987-11-27 9888 San Mateo San Bruno Mountains, Saddle area on north side of Guadelupe Canyon, Parkway west of Radio Road junction; northwestern part of the area along old Guadelupe Road, Upper part of East Fork Colma Creek canyon. Comment
  CDA14167  Salix lasiolepis var. bigelovii G. F. Hrusa, B. Meese 1997-2-17 13621 A San Mateo Ano Nuevo State Park; End of Ano Nuevo Pt. Comment
  CAS-BOT-BC124479  Salix lasiolepis var. lasiolepis Walter Knight; Irja Knight 1987-10-16 6070 San Mateo San Bruno Mt., 100 yds from corner of Hillside Blvd. and Kearney St. Comment
  CAS-BOT-BC124484  Salix lasiolepis var. lasiolepis W. R. Dudley 1894-7-11 s.n. San Mateo San Francisquito Cr. near Cedro Cottage, Stanford University Comment
  SBBG33942  Salix lucida subsp. lasiandra L. S. Rose 1965-3-8 65002 San Mateo Searsville Lake 121 Comment
  CAS-BOT-BC129070  Salix scouleriana W. R. Dudley 1903-6-6 s.n. San Mateo Above Iverson's near Peterson Creek Comment
  CAS-BOT-BC129071  Salix scouleriana W. R. Dudley 1896-4-17 s.n. San Mateo By trail from Haladay place to summit La Honda Rd. - Santa Cruz Peninsula Comment
  CAS-BOT-BC126485  Salix sitchensis W. R. Dudley 1906-3-18 s.n. San Mateo [King's] Kings Mt. Road Comment
  CAS-BOT-BC126499  Salix sitchensis W. R. Dudley 1903-5-1 s.n. San Mateo Iverson's near Pescadero Creek Comment
  CAS-BOT-BC126512  Salix sitchensis A. D. E. Elmer 1903-6-1 4786 San Mateo Lake San Andreas Comment
  CAS-BOT-BC166960  Salix sitchensis Peter Rubtzoff 1975-10-11 8426 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC180795  Salsola soda John H. Thomas 1974-10-6 17615 San Mateo Palo Alto Yacht Harbor near airport. Altitude about sea level. Comment
  RSA681662  Salvia apiana Annuschka Deb 1989-8-18 s.n. San Mateo YBN [Yerba Buena Nursery] Demonstration Garden, Woodside Comment
  RSA681669  Salvia sonomensis Annuschka Deb 1989-4-19 114 San Mateo YBN Berm near parking lot Comment
  RSA434085  Salvia spathacea Glenn A. Gorelick 1967-4-4 s.n. San Mateo San Bruno Mts; overlooking Daly City near San Francisco. Comment
  CAS-BOT-BC246018  Sambucus nigra subsp. caerulea E. K. Balls 1969-9-18 12171 San Mateo 1 mi. No of Skywood along Hwy. 84, from Woodside to junct. with Hwy. 35 Comment
  JEPS127893  Sambucus nigra subsp. caerulea Adam C. Schneider 2013-5-17 143 San Mateo Comment
  JROH1672  Sambucus nigra subsp. caerulea John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC236458  Sambucus racemosa subsp. racemosa A. D. E. Elmer 1903-6-1 5080 San Mateo Butano Creek Comment
  CAS-BOT-BC236465  Sambucus racemosa subsp. racemosa J. H. Thomas 1949-6-4 596 San Mateo 1 mile E. of Pescadero Comment
  CAS-BOT-BC235073  Sambucus racemosa var. racemosa A. D. E. Elmer 1903-5-1 4663 San Mateo Butano Creek Comment
  SBBG43415  Sambucus racemosa var. racemosa C. Bornstein 1994-6-7 San Mateo Gazos Crk Rd, 1.4 mi E of Hwy 1 30 Comment
  UCR122970  Sambucus racemosa var. racemosa George K. Helmkamp, E. A. Helmkamp 2001-6-2 6783 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
  OBI8785  Sanicula arctopoides Lewis S. Rose 1961-4-5 61030 San Mateo San Bruno Mts. 366 Comment
  SEINET13945102 Image available Sanicula arctopoides Lewis S. Rose 1965-1 65012 San Mateo San Bruno Mts, N end. Ca 400 ft 122 Comment
  UCD127909  Sanicula arctopoides Lewis S. Rose 1965-3-25 65012 San Mateo San Bruno Mountains, north end. 121 Comment
  POM287958  Sanicula bipinnata Lyman Benson 1930-3-31 2026 San Mateo Stanford University, San Lorenzo Range. 122 Comment
  CAS-BOT-BC223322  Sanicula bipinnatifida Margaret A. Barry 1938-3-6 230 San Mateo On Coal Mine Ridge Comment
  SJSU1080  Sanicula bipinnatifida C. W. Sharsmith 1951-4-6 5820 San Mateo Woodside Hills c. 3 mi W of Woodside 182 Comment
  POM288029  Sanicula bipinnatifida Lyman Benson 1931-3-15 2637 San Mateo Emerald Lake; Redwood City; Mt. Range: Santa Cruz 549 Comment
  JROH343  Sanicula crassicaulis John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH344  Sanicula crassicaulis John Hunter Thomas 1986-5-1 23996 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176825  Sanicula crassicaulis John H. Thomas 1961-5-5 9212 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  UCR124188  Sanicula crassicaulis George K. Helmkamp, E. A. Helmkamp 2001-6-2 6784 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
  RSA191945  Sanicula crassicaulis R. F. Thorne, P. Everett 1963-6-9 32242 San Mateo On top of San Bruno Mountain. 335 Comment
  UC1601281  Satureja douglasii Ira L. Wiggins 1929-7-4 3778 San Mateo 4 mi w La Honda (on hill road to Pescadero Beach) Comment
  JROH348  Scandix pecten-veneris John H. Thomas 1955-5-6 5011 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH354  Scandix pecten-veneris John Hunter Thomas 1977-4-28 18564 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH362  Scandix pecten-veneris John Hunter Thomas 1986-5-1 23990 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176539  Schedonorus arundinaceus John H. Thomas 1963-8-4 10235 San Mateo About 2.5 miles inland from San Gregorio along the highway Comment
  JROH4415  Schoenoplectus acutus var. occidentalis John Hunter Thomas 1981-7-12 20698 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC111603  Schoenoplectus californicus W. R. Dudley 1909-10-4 s.n. San Mateo North pond, northern part of county Comment
  RSA14775  Schoenoplectus maritimus L. S. Rose 1935-8-13 35565 San Mateo Salada 3 Comment
  RSA140622  Schoenoplectus pungens John H. Thomas 1960-6-25 8797 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
  CDA19091  Scirpus maritimus J. Beall 2001-4-24 PDR 064435 San Mateo Belmont Creek at Old Country Rd., Belmont. 0 Comment
  UC1100838  Scirpus microcarpus Herbert L. Mason, Verne Grant 1946-8-28 13093 San Mateo on Highway 5 one mi w of San Bruno between Santa Cruz and Daly City; w of San Bruno Comment
  POM170228  Scoliopus bigelovii C. F. Baker 1902-3-18 322 San Mateo Kings Mountain Comment
  POM51487  Scoliopus bigelovii H. R. Ebright 1922-03 s.n. San Mateo Lake Pilarcitos. Comment
  CAS-BOT-BC519005  Scoliopus bigelovii W. R. Dudley 1893-4-1 s. n. San Mateo La Honda Creek Comment
  RSA299412  Scoliopus bigelovii Inez Smith 1915-03 s.n. San Mateo Hillsboro. Comment
  SEINET12050525  Scoliopus bigelovii F. H. Utech 1988-1 88 -041 San Mateo 3.3 mi from junction of Kings Mt Rd & CA 35 on former enroute to Woodside 260 Comment
  SEINET12057731  Scoliopus bigelovii F. H. Utech 1988-5-17 88 -142 San Mateo 0.5 mi from junction of Kings Mt. Road & CA 35 on former enroute to Woodside, Skyline Hiking Trail 580 Comment
  CDA7621  Scolymus hispanicus T. C. Fuller 1965-7-8 13755 San Mateo D. McBryde property, 140 Eleanor Drive, Woodside. 0 Comment
  JROH4129  Scrophularia californica John Hunter Thomas 1983-6-29 22696 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2883  Scutellaria tuberosa Hester R. Davis 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5752  Scutellaria tuberosa L. Nordby 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Oak woodland just west of the serpentine grasslands on the top of Jasper Ridge Comment
  CAS-BOT-BC59057  Sedum spathulifolium A. D. E. Elmer 1903-6-1 4550 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC59271  Sedum spathulifolium W. R. Dudley 1894-4-21 s.n. San Mateo Rocks below Crystal Springs Reservoir. Comment
  CAS-BOT-BC59272  Sedum spathulifolium W. R. Dudley 1897-6-4 s.n. San Mateo On rocks by Canyon Camp, W. Waddell Cr. Comment
  CAS-BOT-BC363398  Senecio aronicoides Fred Hemphill 1973-4-22 827 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JEPS22901  Senecio aronicoides John H. Thomas 1958-5-10 7163 San Mateo about 5.0 mi sw Palo Alto; Jasper Ridge 152 Comment
  JROH1217  Senecio aronicoides John H. Thomas 1958-5-10 7163 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC363735  Senecio hydrophilus Alice Eastwood; John Thomas Howell 1938-6-26 6058 San Mateo Near Pescadero Comment
  JEPS37223  Senecio hydrophilus W. L. Jepson 1910-8-18 4162 San Mateo Butano Creek Comment
  CAS-BOT-BC353468  Senecio jacobaea Peter Rubtzoff 1975-10-24 8434 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction. Uppermost part of East Fork Colma Creek, at the northwest corner of Fog Forest, San Bruno Mountains. Comment
  CAS-BOT-BC364637  Senecio vulgaris John H. Thomas 1963-5-20 10146 A San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  SEINET5571340  Senecio vulgaris H. S. Gentry 1931-1 96 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  NY64522  Sequoia sempervirens E. G. Dudley 1904-1-21 74 San Mateo Cañada de Raymundo, Santa Cruz Mountains 274.3 Comment
  NY804113  Sequoia sempervirens C. R. Broome 1978-7-2 2224 San Mateo Kings Mountain Road, 1.5 miles W of its junction with CA Hwy 84. Comment
  SEINET3876338 Image available Sequoia sempervirens Clipper Watene 1965-7-31 40 San Mateo Along Hwy. 84, one mi north of La Honda.; 0 Comment
  CAS-BOT-BC85777  Sequoia sempervirens W. R. Dudley 1897-1-1 s.n. San Mateo Santa Cruz Mountain Peninsula, by Hamilton's Comment
  CDA2435  Setaria parviflora I. J. Campbell 1958-8-12 1015 San Mateo Redwood City. 0 Comment
  POM223278  Sidalcea diploscypha L. S. Rose 1935-6-9 35211 San Mateo Emerald Lake, W. of Redwood City Comment
  UC583163  Sidalcea diploscypha Lewis S. Rose 1936-5-28 36300 San Mateo w Redwood City (Emerald Lake); , w of Redwood City 91 Comment
  SEINET7097929  Sidalcea malviflora A. G. Vestal 1937-6-15 s.n. San Mateo Lat. 37 14' 13ao N, Long. 122 24' 55ao W (NAD27 converted to WGS84 decimal degrees). Pebble Beach west of Pescadero. UTM Zone 10, 551863 mE, 4121109 mN. Comment
  UC1589119  Sidalcea malviflora W. Roderick 1961-1-15 61 .012 San Mateo 2.6 mi n Kings Mt. Rd. (nw of Woodside, Cahil Ridge on Skyline Blvd., Highway 5); nw of Woodside, Cahil Ridge on Skyline Blvd Comment
  SJSU8493  Sidalcea malviflora R. L. Herb 1959-4-19 San Mateo 2.5 mi S of Pescadero Comment
  JEPS127779  Sidalcea malviflora subsp. laciniata Adam C. Schneider with C. Matt Guilliams 2013-3-9 32 San Mateo Comment
  RSA187474  Sidalcea malviflora subsp. malviflora John H. Thomas 1964-4-30 10360 San Mateo San Bruno Mtn in northern part. Northern Coastal Scrub of Munz and Keck 305 Comment
  RSA15352  Sidalcea malviflora subsp. malviflora Carl B. Wolf 1927-1-29 167 San Mateo Pebble Beach, coast south of Pescadero. Comment
  POM151595  Silene californica A. D. E. Elmer 1903-06 4446 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC166915  Silene gallica Peter Rubtzoff 1978-5-5 9164 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  JROH1739  Silene gallica John Hunter Thomas 1983-4-28 21775 San Mateo Jasper Ridge Biological Preserve, Stanford University; at low-flow crossing Comment
  CAS-BOT-BC389892  Silene scouleri subsp. scouleri John H. Thomas 1961-8-27 9705 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC364860  Silybum marianum J. H. Thomas 1949-5-25 562 San Mateo Near western approach to the Dumbarton Bay Bridge Comment
  CAS-BOT-BC75378  Sisymbrium orientale Walter Knight; Irja Knight 1965-4-11 s.n. San Mateo San Bruno Mountains. Guadalupe Road about 0.5 mile from Radio Road. Comment
  JROH4443  Sisyrinchium bellum John Hunter Thomas 1981-4-21 20464 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC75049  Sisyrinchium bellum C. F. Baker 1902-3-30 428 San Mateo Crystal Springs Lake Comment
  UCSB16303  Sisyrinchium bellum Schulte, John 1963-4-14 San Mateo Jasper Ridge; 3 mi SW of Stanford Campus; between Clara Valley and main front of Santa Cruz Mountains 152 Comment
  UC844176  Smilacina racemosa L. R. Abrams 1916-3-25 5585 San Mateo near Dam; Santa Cruz Mountain Peninsula, Searsville Ridge Comment
  UCR51647  Smilacina racemosa R. Ascanio 1988-4-17 s.n. San Mateo E on Gazo Creek Road off Hwy 1, c. 2 mi. north of Ano Nuevo State Reserve 85 Comment
  IRVC9061  Smilacina stellata var. sessilifolia P. W. Rundel 1962-4-12 1017 A San Mateo 1 mile East of Skyline Hwy on La Honda Rd. Comment
  RSA377730  Smilacina stellata var. sessilifolia Lewis S. Rose 1937-3-20 37005 San Mateo Moist Hills, Skyline Blvd. W. of Tanforan. 183 Comment
  JROH4175  Solanum americanum John H. Thomas 1974-10-29 17641 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  UC1332467  Solanum douglasii G. L. Stebbins Jr. and E. F. Paddock 1939-8-17 63 San Mateo San Gregorio Comment
  UC1332475  Solanum furcatum G. L. Stebbins Jr. and E. F. Paddock 1940-9-7 101 San Mateo at junction of three upper forks of San Pedro Creek (1 mi from seashore, San Pedro Valley); San Pedro Valley 30 Comment
  CAS-BOT-BC154182  Solanum umbelliferum J. H. Thomas 1949-10-16 1154 San Mateo Just north of outlet of San Gregorio Creek Comment
  UC26234  Solanum umbelliferum Alice Eastwood April 1896 San Mateo Crystal Springs Comment
  JEPS30890  Solidago elongata J. H. Thomas 1959-8-16 8065 San Mateo about 2 mi sw Pescadero 60 Comment
  CAS-BOT-BC365744  Solidago spathulata Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Motorcycle Ridge Comment
  HSC24021  Solidago velutina subsp. californica Mary Katherine Wicksten 1971-8-20 207 San Mateo Huddart Park; area by King's Mtn. Rd., above Miwok Area Comment
  LA203968  Solidago velutina subsp. californica U. S. Grant; 1926-9-6 IV San Mateo Kuiqs Mountain 609 Comment
  UC909336  Soliva sessilis Ira L. Wiggins 1950-5-20 12352 San Mateo above Pescadero Beach Comment
  JROH1240  Soliva sessilis John H. Thomas 1965-4-28 10598 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA320914  Soliva sessilis Robert A. Norris 1984-3-21 4651 San Mateo Along trail in saddle between Parking Area (and summit) and Blue Blossom Hill, San Bruno Mtns. 305 Comment
  CAS-BOT-BC374498  Sonchus asper J. H. Thomas 1949-4-14 286 San Mateo Kings Mountain Comment
  JEPS128402  Sonchus asper subsp. asper Adam C. Schneider 2013-5-17 135 San Mateo Crystal Springs Reservoir. Comment
  POM292654  Sonchus oleraceus Lyman Benson 1928-12-15 837 San Mateo Lake Searsville, Stanford, Santa Cruz, San Francisco Bay 152 Comment
  CAS-BOT-BC374698  Sonchus oleraceus Ira L. Wiggins 1973-7-29 22057 San Mateo Lower part of northerly bank of San Francisquito Creek, ca 75 m upstream from Pope Street bridge Comment
  CAS-BOT-BC374703  Sonchus oleraceus Josephine D. Randall 1907-4-27 99 San Mateo Santa Cruz Peninsula. Kings Mt. Comment
  CAS-BOT-BC374710  Sonchus oleraceus Walter Knight; Irja Knight 1964-4-25 691 San Mateo San Bruno Mountain. Upper part of ravine adjacent to Radio Rd. Comment
  JROH1261  Sonchus oleraceus John H. Thomas 1970-7-5 15656 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB17217  Sonchus oleraceus Schulte, John 1963-4-26 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  JROH5529  Sparganium eurycarpum var. eurycarpum John Hunter Thomas 1990-6-7 24866 San Mateo Jasper Ridge Biological Preserve, Stanford University; boat ramp near bridge over the 2 halves of Searsville Lake Comment
  RSA121019  Spartina foliosa J. T. Howell 1956-11-22 31962 San Mateo Redwood City Comment
  CAS-BOT-BC390008  Spergula arvensis John H. Thomas 1964-4-30 10348 San Mateo San Bruno Mountain in northern part of county 396 Comment
  UCD99177  Spergula arvensis J. D. Skoss 1948-7-25 51 San Mateo San Vicente Canyon near Montara. Comment
  UC1537317  Spergula arvensis subsp. arvensis Gordon H. True Jr. 1937-3-31 613 San Mateo field s. of Daly City 182 Comment
  JROH1765  Spergularia John Hunter Thomas 1987-5-7 24263 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU2302  Spergularia macrotheca C. W. Sharsmith 1950-4-16 6631 San Mateo near Pescadero Point near Pescadero Comment
  CAS-BOT-BC390454  Spergularia macrotheca var. macrotheca J. H. Thomas 1954-5-28 4244 San Mateo Guadalupe Valley, about 2 miles south of San Francisco - San Mateo County line 30 Comment
  CAS-BOT-BC390476  Spergularia macrotheca var. macrotheca Alice Eastwood 1937-7-25 18889 San Mateo Pebble Beach, Pescadero Comment
  CAS-BOT-BC390459  Spergularia macrotheca var. macrotheca G. B. Rossbach; R. P. Rossbach 1937-10-1 615 San Mateo Near Burlingame Comment
  CAS-BOT-BC390471  Spergularia macrotheca var. macrotheca G. B. Rossbach; R. P. Rossbach 1940-6-20 738 San Mateo 1 mile south of Montara Point Comment
  CAS-BOT-BC390922  Spergularia marina Walter Knight; Irja Knight 1964-9-2 984 San Mateo San Bruno Mountain. Beach at Point San Bruno Comment
  POM151816  Spergularia salina C. F. Baker 1902-10-20 1859 San Mateo Searsville. Comment
  RSA0098733  Spergularia villosa Lyman Benson 1934-7-29 6112 San Mateo Moss Beach. Pcific Ocean watershed. 15 Comment
  CAS-BOT-BC173602  Spiranthes romanzoffiana Peter Rubtzoff 1979-7-26 9294 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  SJSU15801  Stachys ajugoides Toni Corelli 2010-6-1 637 San Mateo Wavecrest, west of Highway 1 in Half Moon Bay. 25 Comment
  SD38742  Stachys ajugoides var. ajugoides Edith A. Purer 1933-8-13 5425 San Mateo Santa Clara Valley, near Belmont. Comment
  UC1176932  Stachys ajugoides var. rigida Peter H. Raven 1950-5-5 2043 San Mateo Moss Beach 15 Comment
  JROH2910  Stachys bullata John Hunter Thomas 1987-5-19 24294 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5714  Stachys bullata John Rawlings 2015-6-2 1570 San Mateo Jasper Ridge Biological Preserve, Stanford University; north base of Searsville Rock, SE end of lake 108 Comment
  RSA116741  Stachys bullata Josephine Randall 1907-6-8 187 San Mateo Portola Valley. Santa Cruz Peninsula. Comment
  POM284551  Stachys bullata Lyman Benson 1930-5-26 2136 San Mateo Stanford University. Lake Searsville. 152 Comment
  RSA0109086  Stachys pycnantha W. R. Dudley 1902-9-21 s.n. San Mateo Near Crystal Springs Lake. Comment
  SEINET10581821  Stachys pycnantha Lewis S. Rose 1965-8-27 Rose 65093 San Mateo Emerald Lake, West of Redwood City, moist slopes. 244 Comment
  SEINET13948127 Image available Stachys rigida Lewis S. Rose 1950-1 50139 San Mateo Emerald Lake region, alt ca 800 ft. hills W of Redwood City 244 Comment
  JROH1790  Stellaria nitens John H. Thomas 1968-3-17 14196 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC398985  Stellaria nitens Elizabeth McClintock 1965-3-28 s.n. San Mateo Trillium Gulch Comment
  CAS-BOT-BC375912  Stephanomeria virgata Margaret A. Barry 1937-7-17 200 San Mateo Coal Mine Ridge Comment
  RSA18514  Stephanomeria virgata C. B. Wolf 1927-7-14 606 San Mateo Summit of Kings Mountain Rd. Comment
  RSA223602  Stephanomeria virgata Elizabeth McClintock, Walter Knight, I. Knight 1967-8-1 s.n. San Mateo S side of Ridge Road, about 200 yards S of Parking Lot. San Bruno Mtns. Comment
  JROH5333  Stipa pulchra John H. Thomas 1963-3-20 10023 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI22283  Stipa pulchra Lewis S. Rose 1963-4-27 63000 San Mateo Skyline Blvd, W of San Mateo 91 Comment
  POM259788  Stuckenia pectinata I. L. Wiggins, Roxana S. Ferris 1939-8-2 9293 San Mateo Ano Nuevo Point Comment
  POM149336  Stylomecon heterophylla C. F. Baker 1902-5-4 745 San Mateo Woodside. Comment
  UC306701  Stylomecon heterophylla A. D. E. Elmer April, 1903 4921 San Mateo Spanishtown Comment
  CAS-BOT-BC271603  Symphoricarpos albus var. laevigatus Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Horseshoe Ridge, San Bruno Mountain Comment
  JROH1678  Symphoricarpos albus var. laevigatus John H. Thomas 1964-11-29 10540 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below dam Comment
  SD4989  Symphoricarpos albus var. laevigatus Ulysses S. Grant IV Jun 1925 San Mateo Near La Honda. Comment
  CAS-BOT-BC99063  Symphyotrichum chilense Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain - Dairy Ravine across road from KQED radio tower Comment
  CAS-BOT-BC99086  Symphyotrichum chilense John H. Thomas 1965-11-26 11454 San Mateo At intersection of Tunitas Creek Road and Lobos Creek cutoff 121 Comment
  CAS-BOT-BC99054  Symphyotrichum chilense Alice Eastwood; John Thomas Howell Apr. 24, 1938. 5253 San Mateo Tunitas Comment
  CAS-BOT-BC99090  Symphyotrichum chilense W. R. Dudley 1905-9-24 s.n. San Mateo Black Mountain - Santa Cruz Peninsula Comment
  CAS-BOT-BC99097  Symphyotrichum chilense Helen D. Geis 1901-10-25 s.n. San Mateo Crystal Springs to Half Moon Bay Comment
  CAS-BOT-BC99098  Symphyotrichum chilense Helen D. Geis 1901-10-25 s.n. San Mateo Near Spaingstown (Half Moon Bay) Comment
  JEPS49084  Symphyotrichum subspicatum Lewis S. Rose 1966-8-15 66083 San Mateo Pillar Point Comment
Read comments
Feb 2 2012
  JEPS40839  Symphyotrichum subspicatum James G. Daly 1934-1-1 320 San Mateo San Gregorio watershed Santa Cruz Mts. Comment
  SD72386  Symphyotrichum subspicatum Darley F. Howe 1967-8-6 4369 San Mateo Half Moon Bay. Comment
  JROH1280  Tanacetum parthenium Monica Bjorkman 1991-11-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  CHSC1159  Taraxia ovata M. Harless 1930-5-2 San Mateo Moss Beach. Comment
  UC20515  Taraxia ovata J. Burtt Davy 1895-4-20 1018 San Mateo Millbrae Comment
  JROH2998  Taraxia ovata W. R. Dudley 1894-3-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; canada above Searsville Reservoir Comment
  JROH369  Tauschia hartwegii John H. Thomas 1976-4-19 18086 San Mateo Jasper Ridge Biological Preserve, Stanford University; vicinity of dam Comment
  CAS-BOT-BC447473  Tellima grandiflora Mita C. Daniel 1915-4-10 s.n. San Mateo Kings' Mountain Comment
  CAS-BOT-BC447483  Tellima grandiflora Le Roy Abrams 1901-5-1 1558 San Mateo Searsville-Bear Gultch Comment
  RSA195668  Tellima grandiflora John H. Thomas 1967-5-7 12836 San Mateo Near intersections of Bean Hollow and Pescadero roads, about 0.5 mile westward from Pescadero. 61 Comment
  CAS-BOT-BC438264  Tetragonia tetragonoides Ira L. Wiggins 1935-8-24 8161 San Mateo At Moss Beach Comment
  JROH3508  Thalictrum fendleri var. polycarpum John H. Thomas 1961-4-29 9196 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC399839  Thalictrum polycarpum J. H. Thomas 1954-4-3 3834 San Mateo Pilarcitos Creek Road, 3.5 miles NE of Halfmoon [Half Moon] Bay 121 Comment
  SEINET12086638  Thalictrum polycarpum P. R. Hichborn 1920-1 147 San Mateo Portola Valley, Santa Cruz Mountain Peninsula Comment
  UCD93350  Thinopyrum ponticum John C. Throckmorton 1976-6-29 s.n. San Mateo La Honda, Star Route 1. Comment
  CAS-BOT-BC66665  Thysanocarpus curvipes John H. Thomas 1971-4-24 15775 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JROH1611  Thysanocarpus curvipes John Hunter Thomas 1987-4-4 24167 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Dam Comment
  CAS-BOT-BC66679  Thysanocarpus curvipes W. R. Dudley 1894-4-11 s.n. San Mateo Santa Cruz Peninsula. Slope near Menlo Park Reservoir. Comment
  CAS-BOT-BC66680  Thysanocarpus curvipes Dr. A. Kellogg; W. G. W. Harford 1868-1-1 49 San Mateo Unspecified. Comment
  CAS-BOT-BC447579  Tiarella trifoliata var. unifoliata D. E. Breedlove 1973-9-26 35562 San Mateo Pescadero Creek County Park 365 Comment
  UCR121588  Torilis arvensis George K. Helmkamp, E. A. Helmkamp 1999-6-28 4967 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
  POM181976  Torreya californica Anonymous s.n. San Mateo Santa Cruz Mountains Comment
  RSA45320  Torreya californica I. L. Wiggins 1945-5-5 11160 San Mateo Along La Honda Creek about 1 mile above La Honda 152 Comment
  SEINET10793120  Torreyochloa pallida var. pauciflora Adolph D. E. Elmer Elmer 4692 San Mateo Pilarcitos Creek Comment
  JROH4756  Toxicoscordion fremontii John H. Thomas 1971-4-10 15760 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA7720  Tragopogon dubius I. J. Campbell 1964-11-19 San Mateo State Highway 1 & Whitehouse Ranch Road, Pescadero. 0 Comment
  SD39136  Trientalis europaea var. latifolia Edith A. Purer 1933-5-16 3603 San Mateo Alpine Road Comment
  RSA120742  Trientalis latifolia S. S. Tillett, I. Sternback 1956-6-24 525 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  RSA116711  Trientalis latifolia W. R. Dudley 1903-5-1 s.n. San Mateo in Redwoods on road beyond near Petters and Pescadeno Creek Comment
  UCSC010359  Trifolium Dylan M. Neubauer 2016-5-19 690 San Mateo (SnFrB) Santa Cruz Mountains, headwaters of Waterman Creek, w of Hwy 9 423 Comment
  UCSC010361  Trifolium Dylan M. Neubauer 2016-5-19 690 San Mateo (SnFrB) Santa Cruz Mountains, headwaters of Waterman Creek, w of Hwy 9 423 Comment
  UC631539  Trifolium albopurpureum var. albopurpureum A. A. Heller 1907-5-23 8554 San Mateo back of San Mateo (on Half Moon Bay Rd) Comment
  UC903223  Trifolium barbigerum Ethel Crum 1934-4-29 1698 San Mateo s Pescadero (near ocean) Comment
  POM88149  Trifolium barbigerum L. R. Abrams 1904-5-5 s.n. San Mateo Jasper Ridge near Stanford University. Comment
  SBBG33477  Trifolium bifidum var. bifidum A. D. E. Elmer -Apr-1903 San Mateo Portola Comment
  UCSC005498  Trifolium bifidum var. decipiens Randall Morgan 1995-6-22 2795 San Mateo Ridge west of Waterman Creek Comment
  JROH2267  Trifolium depauperatum var. truncatum John H. Thomas 1957-4-16 6650 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  SJSU7635  Trifolium dubium D. D. Kohler 1963-4-11 San Mateo by Skyline Blvd, 3 mi N of San Bruno Comment
  JROH2307  Trifolium fucatum John Hunter Thomas 1990-4-14 24807 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM18836  Trifolium fucatum var. fucatum C. F. Baker 1902-5-1 693 San Mateo Belmont Comment
  UCSC006013  Trifolium fucatum var. fucatum Randall Morgan 1996-5-8 2933 San Mateo Seed from Pescadero State Beach Comment
  JEPS127823  Trifolium gracilentum Adam C. Schneider with C. Matt Guilliams 2013-4-7 80 San Mateo Comment
  UC165628  Trifolium gracilentum J. Burtt Davy 1895-1 1026 San Mateo Pilarcitos Comment
  UCSC005955  Trifolium gracilentum Randall Morgan 1995-6-6 2722 San Mateo Pescadero State Beach (HW 1 opposite Pescadero Road) Comment
  SJSU15444  Trifolium gracilentum var. gracilentum Toni Corelli 2010-5-13 603 San Mateo Pedro Point Headlands, Pacifica, CA, along South Ridge Trail 180 Comment
  SJSU15443  Trifolium macraei Toni Corelli 2010-5-13 601 San Mateo Pedro Point Headlands, Pacifica, CA, along South Ridge Trail 180 Comment
  UCSC005900  Trifolium macraei Randall Morgan 1996-5-24 2966 San Mateo Pacifica, From Montara Mtn. Comment
  UC311115  Trifolium microcephalum A. D. E. Elmer April, 1903 4856 San Mateo Portola Comment
  CHSC39832  Trifolium microdon Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  SEINET12157236  Trifolium microdon Unknown 1932-1 9121 San Mateo Bluffs Half Moon Bay Comment
  SEINET10630892  Trifolium pratense Robert A. Norris 1977-5-2 Norris 3567 San Mateo In disturbed soil on gravelly bank by Interstate Hwy. 280, just S of Farmhill Blvd. Exit, Woodside, San Mateo Co., California. Comment
  JROH2352  Trifolium subterraneum John Hunter Thomas 1983-4-3 21312 San Mateo Jasper Ridge Biological Preserve, Stanford University; roadside near Searsville Lab Comment
  JROH2358  Trifolium subterraneum John Hunter Thomas 1986-6-3 24076 San Mateo Jasper Ridge Biological Preserve, Stanford University; old beach Comment
  JROH2372  Trifolium variegatum John H. Thomas 1955-5-6 4989 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent grassy slopes Comment
  JROH2378  Trifolium variegatum John H. Thomas 1961-4-29 9183 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC867032  Trifolium variegatum T. R. Abrams 1915-6-14 5564 San Mateo Kings Mtn Rd Comment
  RSA0084064  Trifolium variegatum var. melananthum Lyman D. Benson 1930-5-1 2062 San Mateo Stanford University. 107 Comment
  UC165542  Trifolium variegatum var. variegatum J. Burtt Davy 1893-6-22 838 San Mateo Lake Pilarcitos Comment
  JROH2405  Trifolium willdenovii John Hunter Thomas 1980-4-10 19875 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  SEINET10862681  Trifolium willdenovii Robert V. Bradshaw 1922-4-10 Bradshaw 2548 San Mateo Jasper Ridge Comment
  POM207964  Trifolium wormskioldii Jens Clausen 1939-7-1 1746 San Mateo Ano Nuevo Point. Comment
  UC764667  Trifolium wormskioldii R. F. Hoover 1939-4-21 4056 San Mateo 2 mi s Colma Comment
  POM169971  Trillium chloropetalum var. chloropetalum C. F. Baker 1902-3-30 431 San Mateo Crystal Springs Lake. Comment
  RSA3927  Trillium chloropetalum var. chloropetalum W. R. Dudley 1900-3-18 s.n. San Mateo Below San Andreas Dam. Comment
  CAS-BOT-BC521068  Trillium chloropetalum var. giganteum C. F. B. 1902-3-30 431 San Mateo Crystal Springs Lake Comment
  POM170122  Trillium chloropetalum var. giganteum Stewart H. Burnham 1894-2-24 10525 San Mateo Summit Springs. Comment
  CAS-BOT-BC133445  Trillium ovatum W. R. Dudley 1903-5-2 s.n. San Mateo Near Iverson's (Near Pescadero) Comment
  POM169950  Trillium ovatum A. D. E. Elmer 1903-04 4752 San Mateo Portola. Comment
  JROH4130  Triphysaria eriantha subsp. eriantha W. R. Dudley 1896-3-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; ridge east of Searsville Dam Comment
  JEPS100825  Triphysaria eriantha subsp. rosea Dean W. Taylor 2000-6-12 17463 San Mateo Highway 1 at junction Pescadero Road, Pescadero State beach 6 Comment
  CAS-BOT-BC238558  Triphysaria floribunda Alice Eastwood 1915-5-6 s.n. San Mateo Burlingame Comment
  CAS-BOT-BC238565  Triphysaria floribunda David D. Keck 1932-5-6 1490 San Mateo Four miles west of Burlingame, on the Skyline Blvd. Comment
  CAS-BOT-BC238573  Triphysaria floribunda A. D. E. Elmer 1903-4-1 4522 San Mateo South San Francisco Comment
  SBBG54528  Triphysaria floribunda F. W. Pennell, D. D. Keck 1940-5-15 25426 San Mateo 4 mi W of Burlingame 152 Comment
  JROH5612  Triphysaria pusilla John Rawlings 2014-4-11 1215 San Mateo Jasper Ridge Biological Preserve, Stanford University; in road G immediately north of its intersection with Rd. J. 105 Comment
  SJSU2308  Triphysaria versicolor subsp. versicolor C. W. Sharsmith 1950-4-16 6637 San Mateo near Pescadero Point near Pescadero Comment
  CAS-BOT-BC523096  Triteleia ixioides subsp. ixioides Fred Hemphill 1973-5-6 783 San Mateo San Carlos, area north of Malabar Road and Melendy Drive 207 Comment
  CAS-BOT-BC523097  Triteleia ixioides subsp. ixioides Fred Hemphill 1973-5-14 829 San Mateo San Carlos, area north of Malabar Road and Melendy Drive 207 Comment
  CAS-BOT-BC526101  Triteleia ixioides subsp. ixioides L. R. Abrams 1907-8-26 s.n. San Mateo Kings Mountain Comment
  CAS-BOT-BC526106  Triteleia ixioides subsp. ixioides Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  JROH4749  Triteleia laxa John H. Thomas 1974-4-13 17147 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4751  Triteleia laxa John H. Thomas 1976-5-26 18157 a San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4754  Triteleia laxa John Hunter Thomas 1991-5-2 25015 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18458  Triteleia laxa Carl B. Wolf 1927-6-29 549 San Mateo South of Pebble Beach near Pescadero Comment
  CAS-BOT-BC526358  Triteleia laxa H. A. Dutton 1900-3-25 s.n. San Mateo Woodside, Santa Cruz Peninsula Comment
  CAS-BOT-BC526365  Triteleia laxa Philip C. Wheeler 1965-6-21 s.n. San Mateo Sierra Point, San Bruno Mountain Comment
  CAS-BOT-BC74054  Turritis glabra John H. Thomas 1965-4-28 10606 San Mateo San Bruno Mountain in northern part of county. 914 Comment
  CAS-BOT-BC74063  Turritis glabra George Oberlander 1950-5-28 954 San Mateo San Francisco Watershed Reserve. Southern Cahill Ridge. Comment
  UCD94989  Typha X glauca Malcolm A. Nobs; S. Galen Smith 1949-8-25 1555 San Mateo Sharp Park. Comment
  UCD94642  Typha angustifolia H. A. Borthwick 1925-6-15 1965 San Mateo Mud Lake, Stanford. Comment
  SJSU2612  Ulex europaeus D. M. Dobrinen 1966-4-6 27 San Mateo N end Crystal Springs Lakes Comment
  UCR101543  Ulex europaeus Don Pendleton 1993-11-20 s.n. San Mateo San Francisco Bay Area, South San Francisco, south side of Hickey Blvd. between Junipero Serra Blvd. and the 280 Fwy, east of Mandarin Dr. and west of Longford Dr., at edge of Daly City, SW of Cypress Lawn Cemetery Comment
  CAS-BOT-BC91227  Umbellularia californica Ned Cahill 1974-4-30 234 San Mateo Near the intersection of Canada and Edgewater roads, about 3 miles westward from Redwood City. Comment
  POM50398  Umbellularia californica L. R. Abrams, W. W. Eggleston 1924-3-23 19565 San Mateo Coast Range, near Palo Alto. 60 Comment
  RSA15629  Umbellularia californica C. B. Wolf 1928-2-11 1471 San Mateo East base of Kings Mt. road. Comment
  SEINET5577659  Umbellularia californica H. S. Gentry 1931-1 18 San Mateo Collected about 1.5 miles W of San Mateo, Half-Moon Bay Road. Comment
  UC750643  Umbellularia californica Lewis S. Rose 1946-3-9 46017 San Mateo San Mateo Canyon 91 Comment
  CAS-BOT-BC382764  Uropappus lindleyi Lewis S. Rose 1933-4-30 33127 San Mateo Redwood City Comment
  JROH1299  Urospermum picroides John Rawlings 2007-8-29 1041 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek bed at entry point from Dennis Martin site. 71 Comment
  CAS-BOT-BC404023  Urtica dioica subsp. holosericea Mrs. E. C. Sutliffe 1933-7-12 s.n. San Mateo Alpine Creek Road, Skyline Blvd. to La Honda Comment
  JEPS15041  Utricularia macrorhiza Roxana S. Ferris Oct. 1920 2103 San Mateo 2nd. mud lake Coalmine Ridge; Santa Cruz Mt. Peninsula, Coalmine Ridge 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-BC199349  Vaccinium ovatum W. R. Dudley 1900-3-16 s.n. San Mateo By stage road from King's Mt. to Spanish town Comment
  CAS-BOT-BC199355  Vaccinium ovatum Josephine D. Randall 1907-4-27 139 San Mateo Kings Mt. Comment
  CAS-BOT-BC199368  Vaccinium ovatum James McMurphy 1902-3-22 s.n. San Mateo Above Portola Comment
  JEPS58746  Vaccinium ovatum A. D. E. Elmer Apr 1903 4561 San Mateo Kings Mountain Comment
  JEPS85569  Vaccinium ovatum Craig Dremann 1986-8-30 329 San Mateo entrance to Memorial Park, off Pescadero road Loma Mar Comment
  RSA15307  Vaccinium ovatum C. B. Wolf 1927-4-3 277 San Mateo 1 mi. west of Summit of La Honda grade, Santa Cruz Mts. Comment
  SBBG33994  Vaccinium ovatum L. S. Rose 1969-3-27 San Mateo Kings Mtn Rd, 4 mi W of Woodside 304 Comment
  SBBG9304  Vaccinium ovatum W. D. McLellan 1954-5-17 59 San Mateo Memorial Park near Pescadero Comment
  UC141803  Vaccinium ovatum C. F. Baker 1902-1-15 242 San Mateo w side Kings Mountain Comment
  SEINET10449305  Vaccinium ovatum Mary Susan Taylor 1978-8-30 Taylor 1862 San Mateo Comment
  CAS-BOT-BC199463  Vaccinium parvifolium L. R. Abrams 1909-8-1 4247 San Mateo Between La Honda & Pescadero Comment
  SEINET3559610 Image available Vagnera sessilifolia Lewis S. Rose 1933-4-9 33070 San Mateo Belmont. Comment
  UC1206448  Vancouveria planipetala W. R. Dudley 1895-6-6 San Mateo near Peters Creek (this side of Iverson's); Santa Cruz Peninsula, near Peters Creek Comment
  UC511343  Vancouveria planipetala Lyman Benson 1931-5-10 2795 San Mateo Woodside; Santa Cruz Mts., Woodside 243 Comment
Read comments
Sep 12 2011
  POM149207  Vancouveria planipetala E. B. Copeland 1903-5-9 3051 San Mateo Big Basin. Comment
  SEINET3381842 Image available Velaea kelloggii Lewis S. Rose 1939-5-5 s.n. San Mateo San Mateo Canyon. 46 Comment
  JROH4275  Verbena lasiostachys var. scabrida John H. Thomas 1973-6-15 16834 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC5096  Verbena prostrata L. R. Abrams 1914-6-2 5109 San Mateo unspecified Comment
  JROH4155  Veronica persica Carol Zabel 2007-4-30 67 San Mateo Jasper Ridge Biological Preserve, Stanford University; caretaker's garden area and other areas around the caretaker's residence Comment
  RSA187258  Veronica persica Mary Helen Kenson 1956-4-21 133 San Mateo At 347 Alberta Way, Hillsborough, 1 mile from Skyline Blvd. Comment
  CDA33997  Vicia gigantea D. G. Kelch 2011-3-13 11 .054 San Mateo Near Half Moon Bay along Capistrano Creek. Comment
  UC101723  Vicia gigantea C. F. Baker 1902-4-12 506 San Mateo San Gregorio Comment
  JROH2439  Vicia sativa subsp. nigra John Hunter Thomas 1982-5-18 20945 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Searsville Lake near bridge Comment
  JROH2449  Vicia sativa subsp. sativa John Hunter Thomas 1983-4-3 21311 San Mateo Jasper Ridge Biological Preserve, Stanford University; old beach area Comment
  JROH2451  Vicia sativa subsp. sativa John Hunter Thomas 1983-4-3 21311 San Mateo Jasper Ridge Biological Preserve, Stanford University; old beach area Comment
  JEPS81151  Vicia villosa Edward Lee with H. L. Mason 1935-6-16 1527 San Mateo between Ano Nuevo and Franklin Point Comment
  JROH2454  Vicia villosa subsp. varia John Rawlings 2012-5-15 1114 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along road B vicinity of Dennis Martin Marker. 79 Comment
  CAS-BOT-BC536829  Viola glabella Brandegee no date on label s.n. San Mateo San Gregorio Redwoods Comment
  POM128420  Viola ocellata L. R. Abrams 1902-3-16 2276 San Mateo Kings Mountain. Comment
  POM134804  Viola ocellata C. F. Baker 1902-3-18 333 San Mateo King's Mountain Comment
  UC140860  Viola ocellata C. F. Baker 1902-3-18 333 San Mateo Kings Mountain Comment
  SEINET204884 Image available Viola ocellata W. D. McLellan 1954-5-17 58 San Mateo Memorial Park near Pescadero 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
  SBBG32255  Viola pedunculata L. S. Rose 1968-3-26 68010 San Mateo S base of San Bruno Mtn; South San Francisco 30 Comment
  SEINET11981030  Viola pedunculata L. S. Hill 1930-1 74 San Mateo Comment
  POM134912  Viola sempervirens A. D. E. Elmer 1903-05 4565 San Mateo Kings Mountain. Comment
  RSA15293  Viola sempervirens Carl B. Wolf 1927-4-3 262 San Mateo 1 mile above La Honda. Santa Cruz Mountains. Comment
  CAS-BOT-BC199849  Vulpia bromoides W. R. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs Comment
  CAS-BOT-BC199855  Vulpia bromoides Catherine A. Toschi 1963-2-23 63 :24 San Mateo North slope San Bruno Mountains above Crocker Avenue 152 Comment
  RSA790195  Vulpia bromoides Peter Rubtzoff 1975-5-21 7967 San Mateo San Bruno Mountain. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC184553  Vulpia microstachys var. pauciflora W. R. Dudley 1906-5-13 s.n. San Mateo Near San Mateo Comment
  CAS-BOT-BC185773  Vulpia myuros subsp. megalura George Oberlander 1950-5-2 942 San Mateo San Andreas Lake Comment
  CAS-BOT-BC389768  Vulpia myuros subsp. megalura R. D. Hennessey 1964-4-26 67 San Mateo Area where Pilarcitos Creek empties into ocean several hundred yards from shore Comment
  CAS-BOT-BC128729  Whipplea modesta George E. Pilz 1963-5-16 22 San Mateo East side of Kings Mountain 91 Comment
  POM216896  Woodwardia fimbriata D. D. Keck 1932-2-14 1369 San Mateo Near La Honda, Santa Cruz Mountains 366 Comment
  JROH1301  Wyethia angustifolia John H. Thomas 1955-5-6 4992 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1304  Wyethia angustifolia John H. Thomas 1974-4-25</