Search Results — 2000 specimen records retrieved (1350 records with coordinates)
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Results for search: County=SAN MATEO; Source=All;   

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

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  SEINET11941811  Abronia latifolia Unknown 1932-1 9119 San Mateo Half Moon Bay Comment
  CAS-BOT-BC233752  Abronia umbellata C. F. Baker 1902-10-1 1742 San Mateo Pillar Point Comment
  UC577087  Abronia umbellata Lewis S. Rose 1935-10-12 35654 San Mateo Salada 3 Comment
  UC764000  Acaena pinnatifida var. californica R. F. Hoover 1939-4-21 4053 San Mateo 2 mi. s. Colma Comment
  CAS-BOT-BC451114  Acaena pinnatifida var. californica James McMurphy 1909-5-25 s.n. San Mateo Grade west of Crystal Springs Comment
  CAS-BOT-BC219609  Acanthomintha duttonii Hester R. Davis 1920-6-2 182 San Mateo Back of Redwood City Comment
  LA55133  Acanthomintha ilicifolia Harry A. Dutton; Harriet A. Walker 1915-5-29 3819 San Mateo near the Menlo Golf Club Comment
Read comments
Jul 30 2017
  POM63305  Acanthomintha obovata subsp. duttonii A. D. E. Elmer 1903-05 4538 San Mateo Crystal Springs Lake. Comment
  RSA0076539  Acanthomintha obovata subsp. duttonii Paul R. Hichborn 1920-6-1 s.n. San Mateo Back of Redwood City. Comment
  CAS-BOT-BC333291  Acer macrophyllum A. D. E. Elmer 1903-5-1 4509 San Mateo Portola Comment
  JROH155  Acer macrophyllum John H. Thomas 1971-4-25 15786 San Mateo Jasper Ridge Biological Preserve, Stanford University 92 Comment
  JROH157  Acer macrophyllum John H. Thomas 1974-11-5 17664 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail below dam 114 Comment
  RSA131268  Acer macrophyllum Josephine Randall 1906-03 s.n. San Mateo San Francisquito Creek near Stanford University Comment
Read comments
Sep 18 2013
  RSA46810  Acer macrophyllum Doris K. Kildale 1929-6-19 8015 San Mateo Kings Mountain Comment
  SEINET12234176  Acer negundo J. H. Thomas 1959-1 7669 San Mateo Jasper Ridge about 5 mi SW of Palo Alto 91 Comment
  UC484305  Acer negundo var. californicum Carl B. Wolf 1930-11-5 1809 San Mateo 4 mi w La Honda; Santa Cruz Mts., w of La Honda 91 Comment
  JROH172  Acer palmatum Carol Zabel and Ann Lambrecht 2002-4-24 46 San Mateo Jasper Ridge Biological Preserve, Stanford University. Corte Madera creek floodplain north of Leonard's bridge about 25 feet 107 Comment
  CAS-BOT-BC21584  Achillea millefolium Fred Hemphill 1973-5-6 760 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC21593  Achillea millefolium Javier Penalosa 1963-3-30 2750 San Mateo North of Randolph Drive at Hillside Blvd. in SSF 289 Comment
  CAS-BOT-BC28768  Achillea millefolium Daniel Cohen 1953-5-9 79 San Mateo Top of sea cliff near Pescadero Comment
  UCR254762  Achillea millefolium Peter Rubtzoff 1977-6-21 9065 San Mateo San Francisco Bay Region, San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  CAS-BOT-BC21576  Achillea millefolium David D. Keck 1939-7-1 5011 San Mateo 3 mi. S. of Pescadero, 1 mile from the ocean 60 Comment
  RSA719885  Achillea millefolium Linda E. Watson 1996-5-17 96 -1 San Mateo In Pescadero State Beach on CA1, just south of San Gregorio. Comment
  UCD128300  Achillea millefolium Leslie Fenster 1964-3-22 15 San Mateo near Crystal Spring Lake. 152 Comment
  JROH464  Achyrachaena mollis John H. Thomas 1976-4-30 18101 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH468  Achyrachaena mollis John Hunter Thomas 1981-4-30 20514 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM284475  Achyrachaena mollis Arthur L. Cohen 1935-4-21 625 San Mateo Jasper Ridge; Mt.Range: Coast; Watershed: Searsville. 183 Comment
  JROH2062  Acmispon americanus var. americanus John Hunter Thomas 1983-5-23 22245 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack side and low-flow crossing Comment
  CHSC894  Acmispon wrangelianus A. Koopman 1929-5-9 San Mateo Moss Beach. 7 Comment
  SEINET5537616  Aconitum columbianum H. S. Gentry 1931-1 76 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC391678  Actaea rubra Margaret A. Barry 1937-7-17 197 San Mateo On Coal Mine Ridge Comment
  SDSU2646  Adelinia grandis D. F. Howe 1967-4-14 4349 San Mateo San Francisco Game Reserve near San Bruno. 91 Comment
  SEINET8216770  Adelinia grandis L. E. Detling 1933-3-20 1122 San Mateo Skyline Blvd, [State Highway 35]. Comment
  CAS-BOT-BC139954  Adenostoma fasciculatum Ned Cahill 1974-6-21 332 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  RSA18438  Adenostoma fasciculatum var. fasciculatum Carl B. Wolf 1927-6-29 570 San Mateo Near La Honda, Santa Cruz Mts. Comment
  JEPS59980  Adiantum aleuticum John D. Daly 1934-1 432 San Mateo upper Corte de Madera Canyon Corte de Madera Canyon 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
  SEINET182852 Image available Adiantum emarginatum John P. Young 1925-1-10 San Mateo Burlingame Comment
  CAS-BOT-BC65670  Adiantum jordanii Ira L. Wiggins 1928-4-14 2919 San Mateo Alpine Creek Road Comment
  RSA0030869  Adiantum jordanii Deb Annuschka 1989-8-4 337 San Mateo Isenberg Ranch. Comment
  CHSC112139  Aeonium simsii Dean Wm. Taylor; Alison E. L. Cowell 2005-4-26 19306 San Mateo Pacifica, sea bluffs betwween Shelter Cove and Pacifica State Beach. 16 Comment
  CAS-BOT-BC202672  Aesculus californica Ned Cahill 1974-5-30 329 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Area next to Edgewood Road Comment
  CAS-BOT-BC29525  Agoseris apargioides Alice Eastwood 1915-6-13 4715 San Mateo Granada Comment
  CAS-BOT-BC23022  Agoseris grandiflora var. grandiflora Walter Knight; Irja Knight 1965-5-15 s.n. San Mateo Pig Ranch Ravine Comment
  CAS-BOT-BC23025  Agoseris grandiflora var. grandiflora George Oberlander 1949-7-30 333 San Mateo Grassland near San Andreas Lake Comment
  JROH486  Agoseris heterophylla S. J. McNaughton 1966-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Ehrlich's Area H Comment
  JROH489  Agoseris heterophylla John H. Thomas 1970-4-28 15611 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5952  Agoseris heterophylla John Rawlings 2017-4-3 2014 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 5 serpentine prairie up-slope from trail 122 Comment
  CAS-BOT-BC46174  Agoseris heterophylla John H. Thomas 1974-4-11 17137 San Mateo To the SE of Canada Road and Edgewood Road. NW of Woodside. 152 Comment
  RSA116783  Agoseris hirsuta W. R. Dudley 1901-5-11 s.n. San Mateo Near Colma Comment
  RSA116647  Agoseris hirsuta W. R. Dudley 1893-5-17 s.n. San Mateo Back of Millbrae Comment
  RSA18496  Agoseris hirsuta C. B. Wolf 1927-7-14 624 San Mateo 1 mile south of summit of Kings Mt on Skyline Drive. Comment
  SEINET7295889 Image available Agrostis alba Malcolm A. Nobs, S. Galen Smith 1949-1 1550 San Mateo Marshes at Sharp Park Comment
  UCD51827  Agrostis avenacea Peter H. Raven 1950-6-3 2272 San Mateo on the stand of San Andreas Lake. 121 Comment
  CDA1702  Agrostis capillaris J. T. Howell 1975-9-25 51509 San Mateo San Bruno Mountain 0 Comment
  JROH4779  Agrostis capillaris John Rawlings 2009-6-17 1045 San Mateo Jasper Ridge Biological Preserve, Stanford University; seven yards from paved road in middle of the blocked-off dirt path leading to Causeway Bridge 105 Comment
  SEINET200165 Image available Agrostis semiverticillata Malcolm A. Nobbs, S. Galen Smith 1949-8-26 1607 San Mateo About 1 mile south of Pigeon Point. Comment
  JROH4804  Agrostis stolonifera John Rawlings 2004-11-10 1001 San Mateo Jasper Ridge Biological Preserve, Stanford University. West end of Leonard's bridge, to right as one steps onto bridge, at base of bridge. 107 Comment
  JROH4808  Agrostis stolonifera John Rawlings 2009-7-23 1047 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry creek bed of San Francisquito Creek about 100 yards upstream from the entrance path to the creek nearest the Dennis Martin site. 71 Comment
  SEINET10888115  Agrostis tenuis P. Rubtzoff 1978-7-8 Rubtzoff 9223 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Upper part of East Fork Colma Creek Canyon area. Comment
  JROH4831  Aira caryophyllea John Hunter Thomas 1985-5-22 23681 San Mateo Jasper Ridge Biological Preserve, Stanford University 91 Comment
  CAS-BOT-BC138245  Aira caryophyllea var. caryophyllea W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of Sneath Ranch Hills. Comment
  POM296481B  Alisma triviale Lyman Benson 1931-5-29 2810 San Mateo Santa Cruz Mt. range, Lake Searsville River. 244 Comment
  JROH4568  Allium John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC467294  Allium dichlamydeum Philip C. Wheeler 1965-5-8 s.n. San Mateo Sierra Point Comment
  CAS-BOT-BC472790  Allium neapolitanum J. Ed. McClellan; Bonnie McClellan 1972-4-1 4 San Mateo Bernal Ave, Burlingame Comment
  RSA244729  Allium neapolitanum J. Ed McClellan, Bonnie McClellan 1972-04 s.n. San Mateo Bernal Ave., Burlingame. Comment
  CAS-BOT-BC472889  Allium paniculatum David Atkins 1951-11-10 s.n. San Mateo Pescadero Comment
  CDA928  Allium peninsulare D. G. Kelch, B. G. Baldwin, Sue Bainbridge, Abigail Moore 2005-6-21 5 .366 San Mateo S.F. Water District land, near Spring Valley. NE corner Pilarcitos Lake. Comment
  JROH4557  Allium peninsulare var. franciscanum John H. Thomas 1971-5-30 15963 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH4564  Allium peninsulare var. franciscanum John H. Thomas 1968-5-22 14461 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC474305  Allium unifolium J. H. Thomas 1949-6-4 570 San Mateo Along the coast, 1.4 miles south of road to Pescadero Comment
  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
  SEINET12036414  Alnus rhombifolia Unknown 1932-10-17 7297 San Mateo near Searsville Lake Comment
  CAS-BOT-BC169346  Alnus rubra Lewis S. Rose 1955-11-7 55189 San Mateo Tunitas stream banks 30 Comment
  CAS-BOT-BC137920  Alopecurus saccatus David D. Keck 1932-5-6 1472 San Mateo Burlingame. North city limits. Comment
  LA206319  Alopecurus saccatus D. Keck; 1932-5-6 1472 San Mateo Burlingame, N city limits Comment
  CAS-BOT-BC137918  Alopecurus saccatus James McMurphy 1906-5-8 s.n. San Mateo Pond near head of Crystal Springs Lakes. Comment
  JROH177  Amaranthus albus Ann Lambrecht, Carol Zabel 2006-7-26 25 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG39514  Amaranthus deflexus L. S. Rose 1970-7-26 70079 San Mateo Hillsborough, Black Mtn, Skyline Blvd 121 Comment
  SJSU7593  Amaranthus deflexus C. A. Staicer 1976-9-26 San Mateo 91 Atherton Lane, Atherton Comment
  UCD97767  Amaranthus retroflexus John Thomas Howell 1978-7-18 53187 San Mateo McClellan residence, 1356 Bernal Ave., Burlingame. Comment
  CAS-BOT-BC44933  Ambrosia chamissonis David D. Keck 1931-10-5 1285 San Mateo 1 mile north of Salada Beach Comment
  SD40000  Ambrosia chamissonis Edith A. Purer 1932-7-18 4014 San Mateo Half Moon Bay on sand dunes Comment
  UC896705  Ambrosia chamissonis Lewis S. Rose 1938-8-14 38226 San Mateo coastal dunes El Granada 3 Comment
  CAS-BOT-BC44928  Ambrosia chamissonis Lewis S. Rose 1956-8-13 56144 San Mateo Princeton sand dunes 6 Comment
  SD39995  Ambrosia chamissonis Edith A. Purer 1933-7-27 5352 San Mateo Near strand at Pigeon Point on low sand dunes Comment
  CAS-BOT-BC136825  Amelanchier utahensis Elizabeth McClintock; Paul Reedberg 1988-8-12 s.n. San Mateo Slope below Summit, San Bruno Mountains Comment
  CAS-BOT-BC136830  Amelanchier utahensis Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Horseshoe Ridge Comment
  JROH3593  Amelanchier utahensis Roxana Stinchfield 1914-4-26 145 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Dam Comment
  CAS-BOT-BC214044  Amsinckia Mrs. E. C. Sutliffe 1933-5-17 s.n. San Mateo Skyline Blvd. near Alpine Creek Road Comment
  JROH1341  Amsinckia intermedia John Hunter Thomas 1983-4-5 21321 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  POM287420  Amsinckia intermedia Lyman Benson 1935-4-27 6422 San Mateo La Honda Road, Santa Cruz Mts, east of Skyline Blvd., San Francisco Bay watershed. 457 Comment
  UC1094083  Amsinckia intermedia Francia Chisaki 1953-6-6 567 San Mateo about 4 mi s of San Gregorio (on Hwy #1) Comment
  NY380647  Amsinckia lunaris A. A. Heller 1907-5-23 8555 San Mateo Back of San Mateo on the Half Moon Bay road. Comment
  RSA18466  Anagallis arvensis Carl B. Wolf 1927-6-29 542 San Mateo South of Pebble Beach near Pescadero. Comment
  UCSC007718  Anagallis arvensis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  UC178881  Anaphalis margaritacea Katharine Brandegee 1913-8-11 San Mateo Tobin Comment
  CAS-BOT-BC391918  Anemone grayi Josephine D. Randall 1908-4-12 s.n. San Mateo Santa Cruz Peninsula. King's Mt. Comment
  SEINET12087660  Anemone grayi W. R. Dudley 1894-1 s.n. San Mateo beyond Kings Mt. House Comment
  CDA38223  Angelica hendersonii T. C. Fuller 1957-10-2 407 -57 San Mateo San Gregorio. 0 Comment
  CAS-BOT-BC273188  Anisocarpus madioides David D. Keck 1932-5-11 1497 San Mateo Above Woodside on La Honda road, east slope of Santa Cruz Mtns. 230 Comment
  CAS-BOT-BC273179  Anisocarpus madioides W. R. Dudley 1895-9-15 s.n. San Mateo Santa Cruz Mountain Peninsula. El Corte Madera Creek near Lumber Camp Comment
  UCD128894  Anisocarpus madioides W. A. Harvey; J. M. Tucker 1948-6-29 1704 San Mateo beside road to Portola State Park, just west of junction with Highway 5 (Skyline Boulevard). Comment
  CAS-BOT-BC102288  Anthemis cotula Phillip Wheeler 1965-6-8 s.n. San Mateo Old County Road-Brisbane Comment
  JROH509  Anthemis cotula John Hunter Thomas 1983-6-29 22698 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC280645  Anthoxanthum occidentale L. R. Abrams 1904-3-7 s.n. San Mateo Santa Cruz Mountain Peninsula. Bear Gulch Comment
  CAS-BOT-BC280652  Anthoxanthum occidentale William R. Dudley 1894-3-24 s.n. San Mateo Near bridge, La Honda Cr. Comment
  JROH196  Anthriscus caucalis John H. Thomas 1973-4-14 16554 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH199  Anthriscus caucalis John H. Thomas 1974-5-3 17242 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5746  Anthriscus caucalis J. C. Gaither 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail along San Francisquito Creek, north of Rattlesnake rock. Comment
  JROH3912  Antirrhinum kelloggii Oz Garton 1968-6-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC2013133  Antirrhinum orontium Neal Kramer 2012-4-27 2044 San Mateo Moss Beach Hills approximately 3/4 mile north of the Half Moon Bay Airport entrance. Comment
  CAS-BOT-BC454477  Aphanes occidentalis John H. Thomas 1964-4-30 10371 San Mateo San Bruno Mountain in Northern part of county. 396 Comment
  JROH3610  Aphanes occidentalis John Hunter Thomas 1987-4-4 24170 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC454492  Aphanes occidentalis Ned Cahill 1974-4-29 197 San Mateo Serpentine fields bordered by chapparal near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City Comment
  CAS-BOT-BC454493  Aphanes occidentalis Ned Cahill 1975-2-21 406 San Mateo Chapparal near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City Comment
  POM132688  Apiastrum angustifolium A. D. E. Elmer 1903-06 4461 San Mateo Crystal Springs Lake. Comment
  UC1285700  Aponogeton distachyos Rolf Benseler 1966-4-10 San Mateo 100 yards s of King Drive (formerly Chinese Cemetery Road), e side of Highway No. 5, Skyline Boulevard, northern end of San Mateo County King Drive; e side Highway No. 5, Skyline Boulevard Comment
  CAS-BOT-BC392061  Aquilegia eximia Geis 1901-7-29 s.n. San Mateo Road to Spring Valley Dam Comment
  CAS-BOT-BC405852  Aquilegia formosa Le Roy Abrams 1902-4-13 2343 San Mateo Crystal springs Comment
  CAS-BOT-BC405853  Aquilegia formosa David D. Keck 1932-5-11 1771 San Mateo Three miles west of Kings Mountain, on the road to Tunitas, west slope of Santa Cruz Mountains. 450 Comment
  CAS-BOT-BC405857  Aquilegia formosa Josephine Randall 1908-4-12 s.n. San Mateo King's Mt. Road Comment
  CAS-BOT-BC405897  Aquilegia formosa Everett O'Bannon; Nancy O'Bannon 1956-4-15 s.n. San Mateo Sawyer's Road, near Crystal Springs Lake above Burlingame and Millbrae Comment
  CHSC57095  Aquilegia formosa var. truncata Steven Triano 1988-5-24 206 San Mateo Along S side of Old La Honda Road ca 0.3 mi E of its jct. With La Honda Road. 365 Comment
  CAS-BOT-BC17333  Arabis blepharophylla John H. Thomas 1961-5-7 9314 San Mateo San Bruno Mountains in northern part of county. 396 Comment
  JROH1916  Arbutus menziesii John H. Thomas 1959-4-5 7665 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5562  Arctostaphylos John Rawlings, Toni Corelli 2013-1-29 1110 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail to Hermit's Mine site. 195 Comment
  SEINET11989292  Arctostaphylos S. W. Edwards 1982-1 s.n. San Mateo Foothill Park Comment
  CAS-BOT-BC24199  Arctostaphylos andersonii W. R. Dudley 1897-12-29 s.n. San Mateo On Butano, Pescadero Ridge. Comment
  SD38430  Arctostaphylos andersonii Edith A. Purer 1933-5-23 3602 San Mateo Skyline Drive. Comment
  SEINET11977844  Arctostaphylos andersonii L. S. Rose 1934-1 34026 San Mateo Skyline Blvd, 4 mi S Kings Mountain Comment
  JROH1931  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1970-7-5 15665 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC24731  Arctostaphylos glandulosa subsp. glandulosa Walter Knight; Roger Raiche 1982-1-23 4417 San Mateo San Bruno Mtn. Buckeye Canyon on Oak Ridge. 137 Comment
  CAS-BOT-BC24487  Arctostaphylos imbricata J. H. Thomas 1961-5-7 9319 San Mateo San Bruno Mt. in northern part of county. 396 Comment
  CAS-BOT-BC24489  Arctostaphylos imbricata Peter H. Raven 1950-2-25 1383 San Mateo W. end of ridge behind NBC Television Station, San Bruno Mtns. 457 Comment
  CAS-BOT-BC24498  Arctostaphylos imbricata Lewis S. Rose 1955-2-23 55002 San Mateo San Bruno Hills. Ridge e. of TV Station. Type Locality. Comment
  CAS-BOT-BC27193  Arctostaphylos imbricata Marion L. Campbell 1915-2-15 s.n. San Mateo San Bruno hills Comment
  OBI14661  Arctostaphylos imbricata Robert F. Hoover 1964-4-24 8742 San Mateo San Bruno Mt Comment
  RSA167604  Arctostaphylos imbricata R. F. Thorne, Percy C. Everett, K. Thorne 1963-6-9 32243 San Mateo On top of San Bruno Mt. neart TV tower. 335 Comment
  SJSU5745  Arctostaphylos imbricata L. S. Rose 1955-2-23 55002 San Mateo TYPE LOCALITY; San Bruno Hills Comment
  UCD50868  Arctostaphylos imbricata James Roof 1961-4-18 San Mateo From the northeast face of San Bruno Mt. 335 Comment
  UCR58357  Arctostaphylos imbricata Walter Knight, I. Knight 1980-6-14 3747 San Mateo Original from San Bruno Mt. (grown at Tilden Botanic Garden, Berkeley) Comment
  CAS-BOT-BC38523  Arctostaphylos montaraensis Jacob Sigg; Elizabeth McClintock; Walter Knight; Irja Knight 1981-3-11 4087 San Mateo Collected from near Pacific Rock on San Bruno Mt. Comment
  JEPS88613  Arctostaphylos montaraensis J. Roof 1966-3-27 San Mateo Pacific Ridge San Bruno Mt. 358 Comment
  SBBG21959  Arctostaphylos montaraensis R. F. Thorne with P. C. Everett 1963-6-9 32224 San Mateo top of San Bruno Mtn, near the TV Tower 335 Comment
  UCSC010735  Arctostaphylos montaraensis Rick Flores, Monica Schuster 2006-1 RF 152 San Mateo San Bruno and Mantara Mountains Comment
  JEPS27358  Arctostaphylos pacifica Rimo Bacigalupi with Jim Roof and L. Heckard 1961-4-24 7618 San Mateo lateral ridge below and se end of ridge-top road just east of KRON TV tower and station (Guadalupe Valley side); San Bruno Mountain 304 Comment
Read comments
Aug 29 2014
  RSA633497  Arctostaphylos pacifica Jon E. Keeley 1996-6-24 27572 San Mateo On knob below end of paved road at top of San Bruno Mountain. 350 Comment
  CAS-BOT-BC44748  Arctostaphylos regismontana W. R. Dudley 1902-5-17 s.n. San Mateo Near King's Mountain Road 457 Comment
  POM367228  Arctostaphylos regismontana L. S. Rose 1938-2-23 38083 San Mateo Kings Mountain. 640 Comment
  UC1120843  Arctostaphylos regismontana G. E. Sindel 1935-10-16 380 San Mateo 1 1/8 mi wnw Sierra Moreno; Santa Cruz Quadrangle Comment
  UC1120845  Arctostaphylos regismontana C. M. Belshaw 1935-1-25 1467 San Mateo KIngs Mt. Rd. 6 mi w Woodside; Santa Cruz Quadrangle Comment
  UC549743  Arctostaphylos regismontana J. E. Adams 1935-4-7 1044 San Mateo Skyline Blvd. Comment
  UCD166159  Arctostaphylos sensitiva Jack Major; M. Forde and S. Bamberg 1962-4-3 741 b San Mateo Near Ano Nuevo Point. (Exact location unknown. Coordinates estimated by label maker.) Comment
  HSC24032  Arctostaphylos tomentosa subsp. crustacea Mary Katherine Wicksten 1971-6-17 29 San Mateo Huddart Park, Zwierlein Trail Comment
  HSC7756  Arctostaphylos tomentosa subsp. crustacea L. S. Rose 1969-3-27 69006 San Mateo Kings Mountain Road, 4 mi. W of Woodside 305 Comment
  JEPS98865  Arctostaphylos tomentosa subsp. crustacea James B. Roof, Irja Knight 1964-9-14 San Mateo Montara Mountain, W summit Comment
  RSA128520  Arctostaphylos tomentosa subsp. crustacea James I. McMurphy 1906-03 s.n. San Mateo Kings Mt. Road. Comment
  RSA48822  Arctostaphylos tomentosa subsp. crustacea E. K. Balls 1948-3-19 7870 San Mateo 2 mi. N. of S end of State Rt. 5. 305 Comment
  RSA636850  Arctostaphylos tomentosa subsp. crustacea S. H. Gudmonson 1978-3-22 18 San Mateo 2 miles north of Woodside Road on Kings Mountain Road. Comment
  UC82985  Arctostaphylos tomentosa subsp. crustacea C. F. Baker 1902-3-18 327 San Mateo King's Mountain Comment
  UCD51859  Arctostaphylos tomentosa subsp. crustacea Roman Gankin 1959-2-22 322 San Mateo 2.8 miles from junction state hwy 5 on King's Mt. Road, San Mateo County, California. Comment
  SEINET11989278  Arctostaphylos tomentosa var. tomentosiformis Unknown 1966-1 739 San Mateo ca 0.4 mi NE of Peak Mountain of Montara Mountain range 488 Comment
  CAS-BOT-BC46838  Arctostaphylos uva-ursi Arthur Menzies 1962-2-25 s.n. San Mateo San Bruno Mt. Comment
  SJSU6464  Arctostaphylos uva-ursi S. H. Casey 1969-5-18 264 San Mateo Kamchatka Point, San Bruno Mt Comment
  UCD52147  Arctostaphylos uva-ursi Walter and Irja Knight; Elizabeth McClintock 1982-3-27 4495 San Mateo From Kamchatka Point, San Bruno Mountain, San Mateo County. 320 Comment
  UCD52149  Arctostaphylos uva-ursi Walter and Irja Knight; Elizabeth McClintock 1982-3-27 4494 San Mateo Kamchatka Point, San Bruno Mountain. San Mateo County. 320 Comment
  CDA37698  Arctotheca calendula Breckenridge/Filippini 2006-5-8 s.n. San Mateo Pescadero; Bean Hollow Rd. 0 Comment
  SEINET8728244 Image available Arenaria douglasii Lewis S. Rose 1937-1 37249 San Mateo Burlingame hills 91 Comment
  CAS-BOT-BC401713  Argemone munita subsp. munita J. E. McClellan 1968-8-2 s.n. San Mateo Westerly side of highway 1 about 1/4 mile north from Cascade Ranch entrance, north of Ano Nuevo Pt., near highway post No. 5 M.3039 Comment
  CAS-BOT-BC47698  Armeria maritima subsp. californica Cynthia Steele 1948-5-29 115 San Mateo Pescadero Beach Comment
  CAS-BOT-BC47704  Armeria maritima subsp. californica John R. Berth 1963-5-23 40 San Mateo Pigeon Point 3 Comment
  RSA14196  Armeria maritima subsp. californica Carl B. Wolf 1927-1-29 173 San Mateo San Gregorio. Comment
  RSA18369  Armeria maritima subsp. californica Carl B. Wolf 1927-6-29 539 San Mateo South of Pebble Beach near Pescadero. Comment
  UC877854  Armeria maritima subsp. californica Alice Eastwood 1915-6-13 4712 San Mateo Granada Comment
  UCD98491  Armeria maritima subsp. californica Kathyrn L. Koch 1965-5-1 48 San Mateo Arroyo de los Frijoles Beach State Park, just south of State Highway 1 junction. Comment
  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-BC93933  Artemisia douglasiana George Oberlander 1949-9-25 380 San Mateo San Francisco Watershed Reserve, along stream entering San Andreas Lake 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
  SEINET10580520  Asclepias fascicularis Lewis S. Rose 1965-8-27 Rose 65092 San Mateo Emerald Lake, West of Redwood City, dry slopes. 122 Comment
  POM56936  Aster radulinus C. F. Baker 1902-9-15 1546 San Mateo Black Mt. Comment
  RSA107478  Aster radulinus L. S. Rose 1955-9-19 55174 San Mateo Skyline Boulevard, 7 miles west of Saratoga. 686 Comment
  SEINET946258  Asteraceae L. S. Rose 1948-1 48236 San Mateo Hills W. of Belmont 183 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
  CAS-BOT-BC186768  Astragalus gambelianus W. R. Dudley 1894-4-21 s.n. San Mateo Below Crystal Springs Dam Comment
  SEINET948343  Astragalus gambelianus Lois E. James 1947-1 1758 San Mateo Hills back of Redwood city Comment
  UCD104788  Astragalus gambelianus Lois E. James 1947-4-11 1758 San Mateo Hills back of Redwood City. Comment
  CAS-BOT-BC194430  Astragalus nuttallii var. virgatus Copeland 1905-6-3 3299 San Mateo Montara Pt. Comment
  SBBG34010  Astragalus nuttallii var. virgatus L. S. Rose 1969-9-20 69112 San Mateo Thornton Beach 24 Comment
  RSA498283  Astragalus nuttallii var. virgatus E. A. Purer 1933-8-25 5514 San Mateo Skyline Drive. Comment
  CAS-BOT-BC193090  Astragalus pycnostachyus var. pycnostachyus C. F. B. 1902-10-1 1744 San Mateo Pillar Point Comment
  RSA294164  Astragalus pycnostachyus var. pycnostachyus Robert A. Norris, John L. Inase, Allen Nakagawa 1981-7-25 4225 San Mateo N of mouth of Pescadero Creek, Pescadero State Beach. Comment
  SJSU15402  Astragalus pycnostachyus var. pycnostachyus Toni Corelli 2011-8-31 711 b San Mateo Pescadero State Beach and Marsh Natural Preserve, Butano Trail, between Butano Creek and Pescadero Creek Road 4 Comment
  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
  CAS-BOT-BC66142  Athyrium filix-femina var. cyclosorum John Thomas Howell 1926-10-9 2218 San Mateo Near Lake San Andreas Comment
  JROH1437  Athysanus pusillus John Rawlings 2007-4-1 1064 San Mateo Jasper Ridge Biological Preserve, Stanford University. Serpentine slope above and south of Big Inlet drainage, 176 Comment
  RSA478328  Atriplex leucophylla E. A. Purer 1933-7-27 5349 San Mateo Pigeon Point. Comment
  SEINET4135302  Atriplex leucophylla Lewis S. Rose 1941-9-27 41460 San Mateo Princeton, CA.; 0 2 Comment
  SJSU16064  Atriplex prostrata Toni Corelli 2009-9-9 440 San Mateo Half Moon Bay State Beach, in low dunes Comment
  SEINET4136305  Atriplex prostrata Howard C. Stutz 1995-10-3 9833 San Mateo Half Moon Bay.; 0 Comment
  POM177454  Atriplex subspicata L. R. Abrams, I. Wiggins 1930-11-13 175 San Mateo Skyline Blvd. 1 mile SW of Colma. Comment
  CAS-BOT-BC146081  Avena barbata T. C. Fuller 1971-6-10 19879 San Mateo 1.6 km. east of San Gregorio. Comment
  RSA291577  Avena barbata T. C. Fuller 1971-6-10 19879 San Mateo 1.6 km. east of the San Gregorio. Comment
  SJSU16016  Avena barbata John Rawlings, Ken Hickman 2016-5-26 1812 San Mateo Serpentine seep area (Fountain thistle seep) up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  CAS-BOT-BC146000  Avena fatua Ira L. Wiggins 1975-4-17 22144 San Mateo Northeast side of S.P. right of way, between Willow Road and San Francisquito Creek, Menlo Park. Comment
  JROH4846  Avena fatua W. Lennihan 1990-4-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Across parking lot from picnic tables. Comment
  JROH5975  Avena fatua John Rawlings 2017-5-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Scattered along brick path from visitor parking lot to field station 121 Comment
  CAS-BOT-BC344842  Baccharis douglasii Peter Rubtzoff 1976-10-5 8908 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  JROH541  Baccharis glutinosa John Hunter Thomas 1982-7-22 21089 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH544  Baccharis glutinosa John Hunter Thomas 1988-10-17 24593 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  CAS-BOT-BC99504  Baccharis pilularis Elizabeth McClintock 1966-9-29 s.n. San Mateo Lower part of Colma Canyon, San Bruno Mountain Comment
  CAS-BOT-BC99511  Baccharis pilularis J. H. Thomas 1949-10-16 1144 San Mateo just north of outlet of San Gregorio Creek 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-BC99525  Baccharis pilularis W. R. Dudley 1895-10-19 s.n. San Mateo Near San Francisquito Creek, toward Searsville Comment
  CAS-BOT-BC99527  Baccharis pilularis W. R. Dudley 1895-10-19 s.n. San Mateo Near San Francisquito Creek toward Searsville Comment
  CAS-BOT-BC99529  Baccharis pilularis Carl B. Wolf 1930-11-5 1807 San Mateo 4 mi. so. of Pescadero 7 Comment
  CAS-BOT-BC99534  Baccharis pilularis George Oberlander 1951-7-12 1211 San Mateo San Andreas Valley Comment
  JEPS85567  Baccharis pilularis Craig Dremann 1986-9-13 332 San Mateo near, stage rd half-way between San Gregorio and Pomponio Cr. along rdside San Gregorio Comment
  POM350433  Baccharis pilularis Edith A. Purer 1932-7-18 4022 San Mateo Near Pigeon Point Comment
  RSA40138  Baccharis pilularis L. S. Rose 1948-11-25 48240 San Mateo San Mateo County, Kings Mtn. 549 Comment
  SD30702  Baccharis pilularis Edith A. Purer 1932-7-18 4022 San Mateo Near Pigeon Point Comment
  JROH1439  Barbarea orthoceras John H. Thomas 1967-4-20 12709 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM272597  Barbarea vulgaris Lyman Benson 1929-3-15 1009 San Mateo Bank of San Francisquito Creek at Stanford Isolation Hospital. Comment
  JROH3923  Bellardia trixago John Hunter Thomas 1985-5-2 23582 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC344843  Bellis perennis Peter Rubtzoff 1976-3-14 8443 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC75870  Berberis pinnata W. R. Dudley 1903-5-2 s.n. San Mateo Santa Cruz Peninsula. By La Honda Road below BD Week's. Comment
  RSA140621  Beta vulgaris John H. Thomas 1960-6-25 8796 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
  UC311186  Blennosperma nanum var. nanum A. D. E. Elmer 1903-4-1 4521 San Mateo San Bruno Hills Comment
  POM55208  Blennosperma nanum var. robustum A. D. E. Elmer 1903-04 s.n. San Mateo San Bruno Hills Comment
  JROH4420  Bolboschoenus maritimus subsp. paludosus John Hunter Thomas 1988-6-2 24494 San Mateo Jasper Ridge Biological Preserve, Stanford University. Beach area Comment
  SEINET12276036  Boraginaceae M. T. Doutt 1931-1 607 San Mateo near Portola, along Pacific Ocean Comment
  SJSU15939  Brachypodium distachyon John Rawlings, Ken Hickman 2016-5-26 1815 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
  CDA36478  Brachypodium sylvaticum Ellen Gartside 2011-9-1 s.n. San Mateo Woodside; base of slope just above Grandview Drive. Comment
  SEINET12004611  Brassica juncea E. H. Graham 1931-1 s.n. San Mateo Ano Nuevo Pt., S of San Francisco Comment
  JROH1456  Brassica nigra John H. Thomas 1967-3-26 12419 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC36668  Brassica oleracea John H. Thomas 1966-5-28 11644 San Mateo In central part of Menlo Park near Post Office. Comment
  JROH1463  Brassica rapa John H. Thomas 1975-4-5 17707 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA187280  Brassica rapa John H. Thomas 1965-4-29 10605 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  SEINET4326828 Image available Brassica rapa Lyman Benson 1939-7-1 San Mateo San Francisco, San Francisco City limits, Skyline Boulevard. 30 Comment
  CAS-BOT-BC145323  Briza minor Margaret A. Barry 1937-5-15 125 San Mateo Coal Mine Ridge. Comment
  CAS-BOT-BC145327  Briza minor Copeland 1903-5-24 3257 San Mateo Above Crystal Springs Lake. Comment
  RSA623794  Briza minor Ralph Hopping 1929-4-27 107 San Mateo Jasper Ridge. Stanford Campus. Comment
  UCD57401  Briza minor Beecher Crampton 1962-6-11 6501 San Mateo Sharp Park. Suburb of Pacifica. Mori's Point Road, just west of State Hwy. 1. Comment
  SEINET11675202  Briza minor Unknown 1932-1 9112 San Mateo above Spring Valley Lakes Comment
  JROH4581  Brodiaea elegans subsp. elegans John H. Thomas 1973-6-10 16808 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC484348  Brodiaea elegans subsp. elegans Otto M. Sokol 1953-5-29 114 San Mateo Near Sharon Estates along Sand Hill Road Comment
  HSC23992  Brodiaea elegans subsp. elegans Mary Katherine Wicksten 1971-6-17 44 San Mateo Huddart Park, grassy hill above Oak Area Comment
  SEINET12044664  Brodiaea terrestris P. R. Hichborn 1920-1 s.n. San Mateo near Spring Valley Lakes, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC483169  Brodiaea terrestris subsp. terrestris John H. Thomas 1967-5-2 12818 San Mateo Along Skyline Blvd., 0.4 miles S of Black Mountain intersection, Hillsborough Comment
  CAS-BOT-BC483175  Brodiaea terrestris subsp. terrestris James McMurphy 1906-5-8 s.n. San Mateo Between Woodside and Byre's Store Comment
  CAS-BOT-BC483184  Brodiaea terrestris subsp. terrestris George Oberlander 1950-4-16 683 San Mateo Sawyer Ridge Comment
  CAS-BOT-BC144139  Bromus Ned Cahill 1974-5-30 325 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  CHSC89336  Bromus arenarius R. Garcia 2004-5-4 1299033 San Mateo San Francisco Bay area. 2091 Portola Rd, Woodside. Comment
  CAS-BOT-BC149396  Bromus berteroanus Richard Hobbs 1982-4-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University, about 5 miles SW of the downtown section of Palo Alto. The Preserve consists of about 1400 acres. This from Area C Comment
  JROH4967  Bromus berteroanus H. J. Dengler 1961-4-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Lower edge of gully near the last or northwest-most enclosure, just N. of serpentine Comment
  JROH4969  Bromus berteroanus John Rawlings 2010-5-1 1063 San Mateo Jasper Ridge Biological Preserve, Stanford University. A few feet south of Road F. Also seen around rocky outcrop at Brewer onion site the same day. 178 Comment
  CAS-BOT-BC149014  Bromus carinatus var. carinatus Javier Penalosa 1963-3-30 2711 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Boulevard. In SSF. 91 Comment
  CAS-BOT-BC148986  Bromus carinatus var. carinatus W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. South slope of Montana Mountains. Comment
  CAS-BOT-BC148768  Bromus carinatus var. marginatus Catherine A. Toschi 1963-2-23 63 :29 San Mateo North slope San Bruno Mountains above Crocker Avenue. 152 Comment
  SJSU15317  Bromus commutatus John Rawlings 2011-5-27 1090 San Mateo Edgewood Preserve; just outside preserve at HWY280 overpass along Edgewood Trail. 168 Comment
Read comments
Feb 18 2015
  CAS-BOT-BC210145  Bromus diandrus Peter Rubtzoff 1977-6-21 9056 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon area. Comment
  SEINET3892511  Bromus diandrus R. L. Johnson 2012-4-6 12 -003 San Mateo Half Moon Bay, roadside on Redondo Beach Rd.; 0 25 Comment
  UCSB18541  Bromus diandrus Schulte, John 1963-4-28 San Mateo Jasper Ridge, 3 mi SW of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mtns 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
  JEPS128403  Bromus hordeaceus Adam C. Schneider 2013-5-17 130 San Mateo Crystal springs Reservoir. Comment
  JROH4928  Bromus hordeaceus Winkie Lennihan 1990-4-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; along north side of Rd. F in grassy area east of the serpentine contact 161 Comment
  JROH5614  Bromus hordeaceus John Rawlings 2014-4-11 1217 San Mateo Jasper Ridge Biological Preserve, Stanford University; in road G in hard-packed dirt, immediately north of its intersection with Rd. J. 105 Comment
  UCD58965  Bromus madritensis Rimo Bacigalupi; L. Heckard 1961-5-14 7700 San Mateo Near southern end of Crystal Springs Lake. Along Canada Road. 95 Comment
  JROH4958  Bromus madritensis subsp. rubens John Rawlings 2013-4-30 1181 B San Mateo Jasper Ridge Biological Preserve, Stanford University; along Road B near south boundary fence 78 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
  CAS-BOT-BC161749  Bromus rubens Fred Hemphill 1973-4-22 787 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  UCD59622  Bromus rubens P. Rodriguez-Rojo 1997-4-12 s.n. San Mateo Edgewood County Park. 200 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
  RSA185791  Buddleja davidii John H. Thomas 1966-9-11 12390 San Mateo 1 mile Westward as measured along the road from la Honda Pescadero Rd intersection, Redwood douglas fir forest, 37Y 19N, 122Y 17 W Comment
  CAS-BOT-BC36868  Cakile edentula var. edentula W. R. Dudley 1893-1-1 s.n. San Mateo Santa Cruz Peninsula. Beach near Spanishtown. Comment
  RSA176866  Cakile maritima John H. Thomas 1963-5-20 10116 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  POM272561  Cakile maritima Lyman Benson 1941-7-19 11002 San Mateo Half Moon Bay. 3 Comment
  CAS-BOT-BC185151  Calamagrostis nutkaensis A. D. E. Elmer 1903-6-1 4693 San Mateo San Pedro. Comment
  CAS-BOT-BC233998  Calandrinia breweri Fred Hemphill 1973-4-15 687 San Mateo North of Malabar Road and Melendy Drive, San Carlos 207 Comment
  CAS-BOT-BC438531  Calandrinia ciliata H. A. Dutton 1900-2-11 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  JROH3320  Calandrinia ciliata Duncan M. Porter 1961-2-18 745 San Mateo Jasper Ridge Biological Preserve, Stanford University; Westridge end of ridge Comment
  CAS-BOT-BC273257  Calendula officinalis Peter H. Raven 1950-4-30 1969 San Mateo Montara 24 Comment
  UC306621  Callitriche verna A. D. E. Elmer Jun 1903 4279 San Mateo Lake San Andreas Comment
  CAS-BOT-BC492214  Calochortus albus Fred Hemphill 1973-5-6 757 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH4594  Calochortus albus L. R. Abrams 1914-5-1 5224 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Reservoir Comment
  JROH4601  Calochortus albus John H. Thomas 1973-4-14 16572 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4612  Calochortus albus John Hunter Thomas 1986-5-1 23999 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA130402  Calochortus albus Le Roy Abrams 1914-05 5224 San Mateo Searsville Reservoir. Comment
  RSA292629  Calochortus albus Lyman Benson 1930-5-12 2120 San Mateo San Mateo County: Lake Searsville. 152 Comment
  SEINET3884903  Calochortus albus Lewis S. Rose 1956-6-11 56098 San Mateo 2 mi. w. of Woodside, Kings Mt. Road.; 0 213 Comment
  JROH4615  Calochortus argillosus H. L. Mason 1921-6-4 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
  JROH4634  Calochortus luteus John H. Thomas 1974-5-29 17404 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC491979  Calochortus luteus Otto M. Sokol 1953-5-29 113 San Mateo Near Sharon Estate, along Sand Hill Road Comment
  CAS-BOT-BC491988  Calochortus luteus J. H. Thomas 1960-6-1 8770 San Mateo Dry road bank between Stanford and Searsville along Sand Hill Road. Comment
  POM258692  Calochortus luteus Marion Ownbey, Ruth P. Ownbey 1938-7-7 1699 San Mateo Santa Cruz Mountains, above Searsville Lake Comment
  SEINET12053937  Calochortus luteus Unknown 1932-1 9159 San Mateo no further locality Comment
  CAS-BOT-BC496830  Calochortus tolmiei David D. Keck 1932-5-11 1496 San Mateo Above Woodside on La Honda road, east slope of Santa Cruz Mtn. Comment
  CAS-BOT-BC494041  Calochortus venustus Mrs. Alvin Seale 1932-6-5 s.n. San Mateo Hills near Redwood City Comment
  JROH559  Calycadenia multiglandulosa John H. Thomas 1959-8-22 8077 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  RSA296719  Calystegia purpurata Clark L. Miller 1978-6-15 1 -59 San Mateo Collected off old hwy. 1, approx. 4 miles south of Half Moon Bay. Comment
  CAS-BOT-BC224650  Calystegia purpurata subsp. purpurata A. D. E. Elmer 1903-6-1 4299 San Mateo Pescadero Comment
  CAS-BOT-BC224670  Calystegia purpurata subsp. purpurata Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC436441  Calystegia subacaulis Lewis S. Rose 1956-5-28 56080 San Mateo Skyline Blvd west of San Mateo 182 Comment
  SD38402  Calystegia subacaulis Edith A. Purer 1933-5-30 3641 San Mateo Spring Valley Lakes. Comment
  UC306752  Calystegia subacaulis subsp. subacaulis A. D. E. Elmer June, 1903 4826 San Mateo Crystal Springs Lake 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
  HSC16509  Camissonia ovata R. S. White 1965-4-19 42 San Mateo 4 mi. W of the Standford Golf Course on Sand Hill Rd. Comment
  SD38657  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Edith A. Purer 1934-8-14 5916 San Mateo Half Moon Bay. Comment
  RSA17965  Campanula prenanthoides C. B. Wolf 1927-7-13 714 San Mateo La Honda Grade. Santa Cruz Mountains Comment
  SEINET10463029  Campanula prenanthoides Ira L. Wiggins 1929-7-4 Wiggins 3779 San Mateo 4 MI W OF LA HONDA ON HILL RD TO PESCADERO BEACH, MOIST RAVINE Comment
  JROH1476  Capsella bursa-pastoris John Hunter Thomas 1983-4-5 21324 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  CAS-BOT-BC37667  Cardamine californica LeRoy Abrams 1902-3-16 2274 San Mateo Kings Mountain Road. Comment
  CAS-BOT-BC37669  Cardamine californica Reed Clark Rollins 1941-3-16 2943 San Mateo Santa Cruz Mountains. East slope of Kings Mountain, 6 miles west of Woodside. Comment
  CAS-BOT-BC37678  Cardamine californica LeRoy Ellsworth Detling 1935-4-3 1530 San Mateo Redwoods, La Honda Grade, 2 miles west of Skyline Boulevard Intersection. Comment
  JEPS23932  Cardamine californica var. integrifolia LeRoy Abrams 1902-3-16 2274 San Mateo Kings Mountain Comment
  SEINET5542289  Cardamine californica var. integrifolia H. S. Gentry 1931-1 16 San Mateo 1.5 miles W of San Mateo, Half-Moon Bay road. 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
  SEINET12004998  Cardamine integrifolia G. A. McCallum 1933-1 s.n. San Mateo back of Stanford Campus Comment
  JROH1493  Cardamine oligosperma John H. Thomas 1968-5-17 14182 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC167120  Cardamine oligosperma Peter Rubtzoff 1977-4-14 8946 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, northwest of Fog Forest. Comment
  CAS-BOT-BC37991  Cardamine oligosperma Javier Penalosa 1963-3-9 2686 San Mateo San Bruno Mountain. Ravine 0.5 mile east of 1314 foot summit. 304 Comment
  SEINET11971639  Cardamine oligosperma Unknown 1941-1 41021 San Mateo near San Bruno Comment
  CAS-BOT-BC384843  Cardionema ramosissimum Roxana S. Ferris 1921-4-7 2143 a San Mateo Santa Cruz Mountain Peninsula. San Bruno Mt. 91 Comment
  CAS-BOT-BC384842  Cardionema ramosissimum Walter Knight; Irja Knight 1965-4-20 1082 San Mateo San Bruno Mountain. Pig Ranch Ravine 45 Comment
  UCD85499  Carduus pycnocephalus Alison Blake 2003-4-14 2 San Mateo Filoli botanical gardens. Section F-8, ESE of volunteer parking lot about 30 ft beyond P.L. entrance. Comment
Read comments
Jan 18 2012
  JROH579  Carduus pycnocephalus subsp. pycnocephalus John Hunter Thomas 1980-5-8 19952 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS48963  Carex amplifolia James G. Daly 1934-1 424 San Mateo upper Corte de Madera Canyon Comment
  RSA159424  Carex amplifolia John H. Thomas 1961-5-14 9365 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  JROH4313  Carex barbarae John H. Thomas 1974-5-3 17240 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET7484300 Image available Carex barbarae Peter F. Zika 2010-1 24798 San Mateo Pescadero Road, c. 1 mile SE of Route 1 10 Comment
  JROH4322  Carex bolanderi Toni Corelli 2005-8-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Causeway, Trail 13, west of Leonard's Bridge. 106 Comment
  JROH4325  Carex bolanderi John Rawlings 2010-5-19 1050 B San Mateo Jasper Ridge Biological Preserve, Stanford University; 5 yards north (lakeside) of Leonard's Bridge 106 Comment
  POM224071  Carex bolanderi L. S. Rose 1935-6-11 35216 San Mateo Kings Mountain. Comment
  JROH4330  Carex densa John H. Thomas 1967-6-1 12984 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM230443  Carex densa J. T. Howell, Alice Eastwood 1937-5-7 4328 San Mateo Visatacion Valley Comment
  SEINET3128102  Carex densa Unknown 1902-5-11 2444 San Mateo Crystal S? Comment
  UCD140266  Carex densa Alice Eastwood; John Thomas Howell, J. W. Stacey 1938-4-24 5246 San Mateo Half Moon Bay. Comment
  JROH4343  Carex globosa John Hunter Thomas 1992-4-23 25152 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Rattlesnake Rocks and along trail to redwoods. Comment
  POM193755  Carex gracilior W. R. Dudley 1900-5-17 s.n. San Mateo Seal Creek? Santa Cruz Mountain Peninsula. Comment
  SJSU15225  Carex harfordii Toni Corelli 2012-6-28 801 San Mateo Pescadero State Beach, North Pond 3 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
  SEINET10883864  Carex laciniata Adolph D. E. Elmer Elmer 2958 San Mateo Lake Merced. Comment
  RSA10995  Carex nudata Carl B. Wolf 1928-3-13 1532 San Mateo San Francisquito Creek near Isolation Hospital-Stanford. Comment
  RSA100991  Carex obnupta G. Oberlander 1950-5-6 828 San Mateo Pilarcitos Lake. San Francisco Watershed Reserve. Comment
  CHSC109977  Carex pendula John Rawlings 2011-7-3 San Mateo 200 m E of junction of Purisima Creek Trail and path to Judson Redwood Grove, about 0.5 air miles E of Higgins Canyon Road, Purisima Creek Redwoods Open Space Preserve, W slope of Santa Cruz Mountains, San Francisco Bay (SnFrB). 165 Comment
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Jan 26 2018
  UC143773  Carex serratodens C. F. Baker 1902-5-10 811 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC117640  Carex serratodens Joseph Whipple Congdon 1901-7-28 s.n. San Mateo Spring Valley. Comment
  SEINET7547018  Carex serratodens C. F. Baker 1902-1 811 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC539276  Carex subbracteata John Rawlings; Sara Timby; Toni Corelli 2016-4-23 1731 A San Mateo Along Bean HOllow bluff trail, W of Hwy 1, S of Pescadero 8 Comment
  POM79200  Carex subbracteata A. D. E. Elmer 1903-06 4429 San Mateo Crystal Springs Lake. Comment
  SEINET10750023  Carex subbracteata John Thomas Howell 1938-5-1 Howell 13783 San Mateo Near South San Francisco. Comment
  UCD164096  Carex subbracteata Peter Rubtzoff 1978-5-18 9171 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC116829  Carex subbracteata var. subbracteata W. R. Dudley 1906-6-10 s.n. San Mateo Cahill Ridge, 100 yds N of Spanish Town Road. Comment
  CAS-BOT-BC115511  Carex tumulicola W. R. Dudley 1910-5-26 s.n. San Mateo Coal Mine Ridge near Black Mountain Comment
  CAS-BOT-BC115509  Carex tumulicola Wilhelm Nikolaus Suksdorf 1913-6-20 377 San Mateo Damp or springy places, Crystal Springs Lake. Comment
  UCD165065  Carex tumulicola Peter Rubtzoff 1975-5-21 7974 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CHSC20700  Carpobrotus edulis Robert A. Schlising 1963-2-23 2433 San Mateo 21 miles north of Davenport along Highway 1. Comment
  JROH4011  Castilleja H. J. Dengler 1961-7-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; bank of Corte Madera Creek in southern-most corner of the preserve Comment
  CAS-BOT-BC249184  Castilleja affinis Ira L. Wiggins 1925-4-1 1649 San Mateo On Kings Mountain Road three fourths of a mile above Woodside Comment
  POM88003  Castilleja affinis L. R. Abrams 1902-5-11 2437 San Mateo Crystal Springs Lake. Comment
  POM283660A  Castilleja affinis Lyman Benson 1930-5-1 2072 San Mateo Stanford Univ. San Lorenzo mtn range. 152 Comment
  RSA505385  Castilleja affinis R. C. Bacigalupi, G. Thomas Robbins 1955-8-4 5443 San Mateo Just opposite Thornton Beach, east of Highway No. 1 (Calif. State). 61 Comment
  SD234175  Castilleja affinis Virginia Pinkus Ryder 1965-6-13 436 San Mateo San Bruno Mtn. above Olivet Cemetary. Growing in sun on dry W. slope. 121 Comment
  SD38150  Castilleja affinis Delzie Demaree 1932-4-9 8976 San Mateo Woods, Gov. Ralph Estate Comment
  JEPS103885  Castilleja affinis subsp. affinis T. I. Chuang 1991-7-20 7878 San Mateo Mussel Rock Comment
  JEPS86226  Castilleja affinis subsp. affinis L. R. Heckard 1970-5-5 2451 San Mateo n side San Bruno Mountain (n spur) 60 Comment
  JROH3942  Castilleja affinis subsp. affinis John H. Thomas 1974-4-25 17213 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3945  Castilleja affinis subsp. affinis John Hunter Thomas 1978-4-20 19091 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3953  Castilleja affinis subsp. affinis John Rawlings 2013-4-23 1172 San Mateo Jasper Ridge Biological Preserve, Stanford University. Uphill from Trail c. 180 Comment
  SJSU15408  Castilleja affinis subsp. affinis Toni Corelli 2010-5-13 609 San Mateo Pedro Point Headlands, Pacifica CA; along Arroyo Trail 110 Comment
  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
  UC103163  Castilleja ambigua subsp. ambigua Katharine Brandegee 1905-6-20 San Mateo near Half Moon Bay; Moss Beach Comment
  UC306603  Castilleja ambigua subsp. ambigua A. D. E. Elmer May 1903 4800 San Mateo San Pedro Comment
  JROH3966  Castilleja attenuata John Hunter Thomas 1982-4-23 20838 San Mateo Jasper Ridge Biological Preserve, Stanford University; picnic area Comment
  JROH3973  Castilleja densiflora subsp. densiflora Robert Robertson 1954-4-23 93 San Mateo Jasper Ridge Biological Preserve, Stanford University 170 Comment
  JROH3982  Castilleja densiflora subsp. densiflora John Hunter Thomas 1981-5-14 20585 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Lab Comment
  JROH3985  Castilleja densiflora subsp. densiflora John Hunter Thomas 1985-5-2 23581 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC39846  Castilleja foliolosa Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  POM176909  Castilleja foliolosa L. R. Abrams 1904-4-1 10 San Mateo Near Crystal Springs Lake, Santa Cruz Mts. Comment
  SD38143  Castilleja foliolosa Delzie Demaree 1932-4-9 8973 San Mateo Dry hillsides. Gov. Rolf Estate Comment
  NY68073  Castilleja franciscana F. W. Pennell 1940-5-15 25420 San Mateo E of upper Crystal Springs Lake, SW of San Mateo. 61.0 Comment
  POM204428  Castilleja franciscana E. C. Sutliffe 1933-5-17 s.n. San Mateo Skyline Boulevard. Comment
  RSA297192  Castilleja franciscana R. C. Bacigalupi, G. Thomas Robbins 1954-6-18 4554 San Mateo At the summit of the divide between La Honda Creek and Pescadero Creek, on the road from La Honda and San Mateo County Memorial Redwood Park. 305 Comment
  SD38137  Castilleja franciscana Edith A. Purer 1933-5-25 3653 San Mateo Spring Valley Lakes Comment
  SD4825  Castilleja latifolia Ulysses S. Grant IV June 1925 San Mateo near La Honda Comment
  JROH3996  Castilleja rubicundula subsp. lithospermoides John H. Thomas 1969-5-28 15092 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC535783  Castilleja rubicundula subsp. lithospermoides Elmer I. Applegate 1895-5-11 392 San Mateo near Searsville Comment
  JEPS88830  Castilleja subinclusa subsp. franciscana T. I. and F. M. Chuang 1991-7-1 7848 San Mateo 0.8 mi n San Gregorio Beach Comment
  JEPS3821  Castilleja subinclusa subsp. franciscana James G. Daly Apr 1935 260 San Mateo near La Honda (San Gregorio watershed); Santa Cruz Mts., San Gregorio Comment
  JEPS15590  Castilleja wightii Rimo Bacigalupi with J. R. Sweeney, Cliff Fenneman and George Bacigalupi Jr. 1954-8-3 4737 San Mateo slopes directly above Edgemar (on the old coast highway connection with Skyline Boulevard) 76 Comment
  JEPS3674  Castilleja wightii C. R. Bell 1951-3-25 922 San Mateo e of Daly City (maritime slopes of Colma Canyon); Colma Canyon Comment
  JEPS47396  Castilleja wightii L. R. Heckard 1964-6-24 1394 San Mateo near San Bruno Mt. summit (slope n of (below) transmitting station); San Bruno Mt. 304 Comment
  JEPS47428  Castilleja wightii L. R. Heckard 1964-7-26 1426 San Mateo 0.4 mi up Lobitos Creek road from Verde Road on old highway (Lobitos Creek road, above Lobitos Creek valley) Comment
  JEPS60422  Castilleja wightii T. I. Chuang and F. M. Chuang 1969-6-21 6662 b San Mateo about 2 mi s Half Moon Bay road junction and Skyline Boulevard Comment
  UC202800  Castilleja wightii A. D. E. Elmer Jul 1903 4761 San Mateo San Pedro; ; San Pedro, San Mateo Co. Comment
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Nov 23 2007
  UC885266  Castilleja wightii Alice Eastwood 1915-6-13 4710 San Mateo Granada Comment
  JEPS103881  Castilleja wightii T. I. Chuang and F. M. Chuang 1991-7-1 7846 San Mateo 1.1 mile N or Montara Comment
  JEPS103886  Castilleja wightii T. I. Chuang 1991-7-20 7879 San Mateo Hill just S of Rockaway Beach. Comment
  JEPS60428  Castilleja wightii T. I. Chuang with F. M. Chuang 1969-6-22 6668 San Mateo 2.8 mi s Pescadero Point (on Highway 1) Comment
  RSA18358  Castilleja wightii Carl B. Wolf 1929-5-25 3730 San Mateo Just north of Pigeon Pt. Comment
  RSA523428  Castilleja wightii L. R. Heckard, R. C. Bacigalupi 1963-7-2 1328 San Mateo Near home of John gay. Slopes above S. Fk. of San Pedro Creek. SE of town of San Pedro Valley. 152 Comment
  CAS-BOT-BC39382  Caulanthus lasiophyllus Fred Hemphill 1973-4-15 685 San Mateo North of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC39385  Caulanthus lasiophyllus Wilhelm Nikolaus Suksdorf 1913-6-23 258 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC39387  Caulanthus lasiophyllus H. A. Dutton 1900-2-1 s.n. San Mateo Santa Cruz Peninsula. Comment
  CAS-BOT-BC39389  Caulanthus lasiophyllus Ned Cahill 1974-4-29 170 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  JROH1522  Caulanthus lasiophyllus John H. Thomas 1961-4-4 9044 F San Mateo Jasper Ridge Biological Preserve, Stanford University; serpentine area near Westridge end of ridge Comment
  JROH1525  Caulanthus lasiophyllus John H. Thomas 1968-5-22 14456 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC40398  Caulanthus lasiophyllus Elizabeth McClintock 1965-4-11 s.n. San Mateo San Bruno Mountain. Adjacent to Guadalupe Road. Comment
  CAS-BOT-BC47932  Ceanothus Fred Hemphill 1973-4-15 669 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 182 Comment
  CAS-BOT-BC47935  Ceanothus J. H. Thomas 1949-3-29 189 San Mateo Kings Mountain Comment
  UCD112111  Ceanothus cuneatus var. cuneatus Lewis S. Rose 1964-3-23 64011 San Mateo Emerald Lake, west of Redwood City. 121 Comment
  POM282997  Ceanothus oliganthus var. sorediatus Lyman Benson 1937-7-25 8467 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  UC774510  Ceanothus oliganthus var. sorediatus Carl B. Wolf 1941-7-31 11113 San Mateo 1 mi e summit La Honda Grade; Santa Cruz Mts., summit of La Honda Grade 396 Comment
  POM222807  Ceanothus oliganthus var. sorediatus S. S. Berry 1909-3-31 s.n. San Mateo Hill slope near the Hermit. 152 Comment
  CAS-BOT-BC51240  Ceanothus papillosus Mita C. Daniel 1915-4-10 s.n. San Mateo Kings Mt. Comment
  CAS-BOT-BC51246  Ceanothus papillosus Le Roy Abrams 1902-5-20 2412 San Mateo King's Mountain Comment
  RSA130954  Ceanothus papillosus Josephine Randall 1907-6-29 s.n. San Mateo Santa Cruz Peninsula, King's Mountain Road. Comment
  SEINET12209941  Ceanothus papillosus J. D. McMurphy 1906-1 13 San Mateo King's Mt., Santa Cruz Mts 457 Comment
  RSA136268  Ceanothus papillosus var. roweanus Stewart H. Burnham 1894-4-29 1577 San Mateo Above woodside. Comment
  SEINET3815049 Image available Ceanothus sorediatus Lewis S. Rose 1935-4-16 s.n. San Mateo Woodside, Woodside. Comment
  CAS-BOT-BC52294  Ceanothus thyrsiflorus J. I. McMurphy 1906-5-8 12 San Mateo Woodside, Santa Cruz Mts. 121 Comment
  CAS-BOT-BC52308  Ceanothus thyrsiflorus Josephine D. Randall 1907-6-8 320 San Mateo Portola Valley Comment
  RSA172196  Ceanothus thyrsiflorus Robert F. Thorne, Percy C. Everett 1963-6-9 32241 San Mateo On top of San Bruno Mountain on Kamchatka Point near the TV tower. 335 Comment
  JROH592  Centaurea calcitrapa John Hunter Thomas 1977-6-16 18767 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH595  Centaurea calcitrapa John Hunter Thomas 1991-11-21 25108 San Mateo Jasper Ridge Biological Preserve, Stanford University; SLAC corridor Comment
  CAS-BOT-BC274592  Centaurea calcitrapa Phillip C. Wheeler 1965-6-21 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  CAS-BOT-BC274593  Centaurea calcitrapa Phillip C. Wheeler 1965-8-14 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  CAS-BOT-BC274597  Centaurea calcitrapa H. L. Mason 1921-10-1 s.n. San Mateo County Hospital, Belmont - Crystal Springs Rd. Comment
  SEINET11860702  Centaurea calcitrapa E. A. Purer 1933-8-13 5423 San Mateo Santa Clara Valley, near Belmont Comment
  SJSU1124  Centaurea calcitrapa C. W. Sharsmith 1951-10-7 5863 San Mateo Alpine Road 3 mi NW of Palo Alto Comment
  POM351515  Centaurea melitensis Paul C. Silva 1948-1-31 2629 San Mateo Old La Honda Grade, 1 mi. S of Skyline Blvd. 457 Comment
  RSA130992  Centaurea melitensis C. F. Leitholt 1894-8-13 s.n. San Mateo Devil's Canyon, Block Mountain. Comment
  RSA407369  Centaurea solstitialis Lyman Benson 1932-7-25 3954 San Mateo Menlo Park. 30 Comment
  SEINET8730776 Image available Centaurium exaltatum Lewis S. Rose 1941-1 41280 San Mateo Kings Mountain Rd, 3 miles west of Woodside 183 Comment
  JEPS46942  Centaurium trichanthum J. B. Davy 1893-6-17 778 San Mateo Belmont Comment
  CAS-BOT-BC272819  Centromadia parryi subsp. parryi Lewis S. Rose 1931-8-28 s.n. San Mateo Salada Comment
  OBI48603  Centromadia pungens subsp. pungens Lewis S. Rose 1938-8-18 38231 San Mateo San Mateo Comment
  JEPS44407  Centromadia pungens subsp. pungens Lewis S. Rose 1965-9-20 65106 San Mateo Trousdale Dr. and California Dr.; Burlingame 9 Comment
  UC943015  Centromadia pungens subsp. pungens Lewis S. Rose 1949-8-14 49166 San Mateo Bayshore Blvd San Mateo Comment
  RSA788848  Cerastium fontanum subsp. vulgare Peter Rubtzoff 1977-11-24 9141 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC388388  Cerastium glomeratum A. D. E. Elmer 1903-4-1 4473 San Mateo San Bruno Hills Comment
  JROH1690  Cerastium glomeratum John H. Thomas 1963-4-17 10036 C San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of road near the "riders shack" at the Searsville end of the ridge Comment
  JROH3624  Cercocarpus betuloides var. betuloides John H. Thomas 1969-5-28 15079 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3628  Cercocarpus betuloides var. betuloides John Hunter Thomas 1987-5-19 24297 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA4770  Chamaesyce serpens A. Roach 1970-10-22 San Mateo Southern Pacific Railroad, Menlo Park. 0 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
  JEPS59770  Chenopodium chenopodioides W. L. Jepson 1923-10-18 10258 San Mateo hills w Colma (swale near ocean) Comment
  UCSB61628  Chenopodium murale True, Jr., Gordon 1937-10-16 San Mateo Near Thornton Beach 3 Comment
  CAS-BOT-BC473026  Chenopodium rubrum var. humile W. R. Dudley 1906-10-12 14 San Mateo Santa Cruz Mountain Peninsula. Pond [14 - either cln no or pond no.] Comment
  IRVC9051  Chlorogalum pomeridianum P. W. Rundel 1963-7-7 1144 San Mateo San Francisco Bay drainage area; Kings Mtn Road; woodside. Santa Cruz Mountains 305 Comment
  SD39112  Chlorogalum pomeridianum Edith A. Purer 1933-5-31 3618 San Mateo Grade to Half Moon Bay. Comment
  JROH4642  Chlorogalum pomeridianum var. pomeridianum unspecified 1895-6-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge near the Searsville Dam Comment
  JROH4645  Chlorogalum pomeridianum var. pomeridianum D. E. Breedlove 1971-5-31 19390 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  RSA133889  Chlorogalum pomeridianum var. pomeridianum John H. Thomas 1958-6-11 7222 San Mateo About 4.3 miles due E of Belmont near Crystal Springs Reservoir. 91 Comment
  CAS-BOT-BC246313  Chloropyron maritimum subsp. palustre S. D. Halsey 1908-10-1 s.n. San Mateo Redwood City Comment
  POM165065  Chorizanthe cuspidata var. cuspidata A. D. E. Elmer 1903-05 s.n. San Mateo San Pedro Comment
  CAS-BOT-BC191595  Chorizanthe cuspidata var. cuspidata D. E. Breedlove 1963-5-24 4975 San Mateo coastal bluff at Thornton Beach State Park, Daly City Comment
  NY285629  Chorizanthe cuspidata var. marginata A. D. E. Elmer 05 1903 4828 San Mateo San Pedro Comment
  JROH3223  Chorizanthe diffusa W. R. Dudley 1910-5-29 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA152079  Chrysanthemum coronarium John H. Thomas 1961-5-7 9321 San Mateo San Bruno Mountain, western end of mountain 244 Comment
  RSA51324  Chrysanthemum segetum Peter H. Raven 1950-4-30 1971 San Mateo along streets, Montara 24 Comment
  POM222889  Chrysolepis chrysophylla S. S. Berry 1909-3-13 s.n. San Mateo King's Mt. Road. 549 Comment
  JROH2586  Cicendia quadrangularis John H. Thomas 1973-4-20 16579 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC100944  Cirsium fontinale var. fontinale A. D. E. Elmer 1903-6-1 4292 San Mateo Crystal Springs Lake Comment
  UC894974  Cirsium fontinale var. fontinale John Thomas Howell 1939-6-16 14743 San Mateo Crystal Springs Lake Crystal Springs Lake (along brooklet) Comment
  UC922266  Cirsium fontinale var. fontinale H. K. Sharsmith 1937-6-3 3951 San Mateo about 3 mi w of San Mateo; Crystal Springs Lake 152 Comment
  UCD130569  Cirsium fontinale var. fontinale T. C. Fuller 1960-6-23 4541 San Mateo east shore of Upper Crystal Springs Lake, 0.7 mile south of road across lake. Comment
  RSA0008390  Cirsium fontinale var. fontinale J. T. Howell 1939-6-16 14743 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC285671  Cirsium occidentale var. occidentale A. A. Heller 1906-6-8 8379 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks Comment
  JEPS59212  Cirsium occidentale var. occidentale J. Burtt Davy 1895-4-20 1084 San Mateo San Mateo Creek Comment
  CAS-BOT-BC280132  Cirsium occidentale var. venustum A. D. E. Elmer 1903-6-1 4259 San Mateo Crystal Springs Lake Comment
  JROH632  Cirsium occidentale var. venustum John H. Thomas 1963-6-23 10169 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Westridge end of ridge Comment
  UC30885  Cirsium occidentale var. venustum J. Burtt Davy 1895-4-20 1083 San Mateo San Mateo Creek Comment
  CAS-BOT-BC280133  Cirsium occidentale var. venustum George Oberlander 1949-6-25 251 San Mateo San Francisco Watershed Reserve. East of Sawyer Ridge Comment
  CAS-BOT-BC280529  Cirsium quercetorum Alice Eastwood; John Thomas Howell 1938-6-26 6078 San Mateo Crystal Springs Lake Comment
  UC615438  Cirsium quercetorum Beryl O. Schreiber 1932-5-29 314 San Mateo Crystal Springs Comment
  JROH637  Cirsium vulgare John H. Thomas 1973-6-15 16841 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH643  Cirsium vulgare John Hunter Thomas 1992-7-24 25387 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat ramp Comment
  CAS-BOT-BC285868  Cirsium vulgare Phillip C. Wheeler 1965-8-14 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  RSA791714  Clarkia Robert F. Thorne, P. Everett 1965-8-1 35076 San Mateo 21.5 miles S of Golden Gate Bridge. 69 Comment
  CAS-BOT-BC163377  Clarkia purpurea subsp. purpurea W. Knight; I. Knight 1965-6-20 1251 San Mateo Crystal Cave Canyon Comment
  CAS-BOT-BC163970  Clarkia purpurea subsp. quadrivulnera John H. Thomas 1961-5-14 9381 San Mateo Just north of dam on San Mateo Creek 121 Comment
  POM271800  Clarkia purpurea subsp. quadrivulnera Lyman Benson 1930-4-17 2088 San Mateo Stanford University, foothills. Upper Sonoran. 122 Comment
  SEINET4145648  Clarkia purpurea subsp. quadrivulnera A. A. Heller 1906-6-8 8382 San Mateo Near Ocean View, San Francisco Comment
  SEINET4145649  Clarkia purpurea subsp. quadrivulnera A. A. Heller 1906-6-8 8384 San Mateo Near Ocean View, San Francisco Comment
  CAS-BOT-BC165129  Clarkia rubicunda Josephine D. Randall 1907-7-23 268 San Mateo Crystal Springs Lake Comment
  JEPS90055  Clarkia rubicunda Dean W. Taylor 1994-5-10 14269 San Mateo ca. 300 meters se of junction of Edgewood and Canada Roads (200 m w of trail parallel to and on w side of Highway 280, Edgewood Park, Santa Cruz Mountains); Santa Cruz Mountains, Edgewood Park, Highway 280 137 Comment
  JROH3026  Clarkia rubicunda John Hunter Thomas 1981-5-25 20646 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18380  Clarkia rubicunda Carl B. Wolf 1927-7-1 528 San Mateo Above Emerald Lake, back of Redwood City. Comment
  UC930770  Clarkia rubicunda Mrs. Phipps July 1922 San Mateo Tunitas Creek Comment
  CAS-BOT-BC165159  Clarkia rubicunda Lewis S. Rose 1957-7-6 57117 San Mateo Skyline Blvd. w. of San Mateo 182 Comment
  OBI12094  Clarkia rubicunda Lewis S. Rose 1957-7-6 57117 San Mateo Skyline blvd. W of San Mateo 183 Comment
  RSA113615  Clarkia rubicunda Peter H. Raven 1957-7-6 11055 San Mateo Along Tunitas Creek 2.0 miles from junction with State Highway 1. Comment
  JROH3039  Clarkia unguiculata John Rawlings, Ann Lambrecht 2010-6-23 0932 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Trail 2 through small meadow about 700 yards east of the Trail 3 intersection. 81 Comment
  POM32413  Clarkia unguiculata A. D. E. Elmer 1903-06 4293 San Mateo Alpine School House. Comment
  JROH3332  Claytonia exigua subsp. exigua John H. Thomas 1969-4-20 14895 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
  JROH3344  Claytonia perfoliata subsp. perfoliata John H. Thomas 1963-5-15 10088 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3348  Claytonia perfoliata subsp. perfoliata John H. Thomas 1975-4-19 17802 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3350  Claytonia perfoliata subsp. perfoliata John Hunter Thomas 1981-4-5 20288 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek Comment
  CAS-BOT-BC91483  Clematis lasiantha J. I. McMurphy 1906-4-30 20 San Mateo Santa Cruz Peninsula. Santa Cruz Mountains. Portola Valley. Comment
  JROH3409  Clematis lasiantha John H. Thomas 1966-4-29 11586 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3413  Clematis lasiantha John H. Thomas 1973-3-12 16490 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10476024  Clematis lasiantha Charles F. Baker Baker 499 San Mateo La Hondo, California Comment
  JROH3422  Clematis ligusticifolia Toni Corelli 2007-8-28 336 b San Mateo Jasper Ridge Biological Preserve, Stanford University; below Trail 2, above San Francisquito Creek along embankment 71 Comment
  JROH2877  Clinopodium douglasii John H. Thomas 1973-6-15 16845 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2881  Clinopodium douglasii John Hunter Thomas 1986-6-7 24087 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC007734  Clinopodium douglasii Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  SD27837  Clintonia andrewsiana Carl B. Wolf 1929-5-25 3736 San Mateo 2 miles from Pescadero, on Alpine Creek. Comment
  CAS-BOT-BC499369  Clintonia andrewsiana W. R. Dudley 1915-9-1 s.n. San Mateo El Corte de Madera Creek Comment
  CAS-BOT-BC499375  Clintonia andrewsiana A. Kellogg 1870-5-16 s.n. San Mateo San Gregoria Creek Comment
  SEINET12047074  Clintonia andrewsiana F. H. Utech, Utech, C. L. 1972-1 72 -601 San Mateo road between Pescadero and La Honda, ca 2.5 mi before the junction with CA 84 183 Comment
  JEPS47717  Collinsia heterophylla Phillip Wheeler 1965-6-7 San Mateo Buckeye Canyon; San Bruno Mtn Comment
Read comments
Mar 12 2009
  JEPS17741  Collinsia multicolor A. Paul Martin 1957-5-23 San Mateo San Bruno Hills, at upper edge of town of Brisbane Brisbane; San Bruno Hills, Brisbane 198 Comment
  CAS-BOT-BC240936  Collinsia multicolor Miss E. Cannon No date on label s.n. San Mateo Hills near the Bay, South San Francisco Comment
  CHSC55725  Collomia heterophylla Steven Triano 1988-5-24 260 San Mateo Along Old La Honda Road ca 0.6 mi s of its jct. with Portola Road and 3.8 mi s of Woodside. 176 Comment
  JEPS71039  Collomia heterophylla P. B. Kennedy May, 1917 San Mateo Comment
  JROH206  Conium maculatum John H. Thomas 1964-7-3 10442 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road above Searsville Lake Comment
  JROH209  Conium maculatum John H. Thomas 1968-5-22 14462 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of lake Comment
  JROH213  Conium maculatum John Hunter Thomas 1980-5-6 19932 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM132669  Conium maculatum A. D. E. Elmer 1903-07 4957 San Mateo San Mateo Comment
  SBBG54550  Conium maculatum C. Taylor 1971-6-12 158 San Mateo corner of Harbor Blvd and Old Country Rd, Belmont Comment
  JROH1854  Convolvulus arvensis John Hunter Thomas 1987-5-19 24298 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0059776  Convolvulus subacaulis Alice Eastwood 1933-5-14 18851 San Mateo Woodside, woods near the Shilling place. Comment
  CAS-BOT-BC285995  Conyza bonariensis John H. Thomas 1961-8-27 9692 San Mateo Colma. Near intersection of El Camino Real and F Street 45 Comment
  RSA176594  Conyza bonariensis John H. Thomas 1961-8-27 9692 San Mateo Colma; open sandy field near intersection of El Camino Real and F Street 46 Comment
  RSA176609  Conyza canadensis John H. Thomas 1961-8-27 9694 San Mateo Colma; open sandy field near intersection of El Camino Real and F Street 46 Comment
  CAS-BOT-BC288964  Conyza floribunda Peter Rubtzoff; Patricia Fallon 1987-8-26 9838 San Mateo San Bruno Mts: Saddle area on N side of Guadelupe Canyon. Parkway W of Radio Rd junction; NW part of the area along old Guadelupe Rd Comment
  POM226854  Cordylanthus maritimus subsp. palustris L. R. Abrams 1914-7-16 s.n. San Mateo Cooley's Landing on San Francisco Bay Comment
  SEINET8733335 Image available Cordylanthus pilosus L. S. Rose 1941-1 41362 San Mateo Woodside 60 Comment
  JEPS4612  Cordylanthus pilosus subsp. pilosus L. S. Rose 1941-8-9 41362 San Mateo Woodside 60 Comment
  JROH4027  Cordylanthus pilosus subsp. pilosus John H. Thomas 1971-8-5 16010 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4036  Cordylanthus rigidus subsp. rigidus Toni Corelli 2006-8-30 325 San Mateo Jasper Ridge Biological Preserve, Stanford University; upslope of Hermits Cabin site 189 Comment
  RSA51367  Cordylanthus rigidus subsp. rigidus L. S. Rose 1949-8-14 49163 San Mateo Emerald Lake, hills west of Redwood City. 122 Comment
  UC527527  Cornus glabrata C. B. Wolf 1931-8-20 San Mateo 2 mi. back of Stanford University (near Schenkel's Camp, Los Trancos Creek); Los Trancos Creek 91 Comment
  UC527529  Cornus glabrata C. B. Wolf 1931-8-20 San Mateo 3 mi. w. Mayfield (on rd. to La Honda) 91 Comment
  RSA18367  Cornus occidentalis C. B. Wolf 1929-5-20 3721 San Mateo No. end of Searsville Lake. Comment
  JROH1867  Cornus sericea subsp. sericea John Hunter Thomas 1981-4-21 20460 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1878  Cornus sericea subsp. sericea John Hunter Thomas 1987-5-26 24311 San Mateo Jasper Ridge Biological Preserve, Stanford University; along causeway Comment
  CDA18374  Cortaderia selloana G. D. Barbe 1978-9-26 2440 San Mateo Skylawn Memorial Park; drive from Hwy 92 into the park. 716 Comment
  CAS-BOT-BC180279  Corylus cornuta subsp. californica Elizabeth McClintock 1972-3-26 s.n. San Mateo Middle Buckeye Canyon. San Bruno Mountain Comment
  CAS-BOT-BC180371  Corylus cornuta subsp. californica Ira L. Wiggins 1929-3-23 3373 San Mateo Road to Mud Lake, near Stanford University Comment
  UCD110079  Corylus cornuta subsp. californica Baki Kasapligil 1967-7-18 4171 San Mateo Colma Canyon, San Bruno Mt. 30 Comment
  RSA481440  Corylus cornuta var. californica Paul C. Silva 1948-1-31 2621 San Mateo Skyline Blvd. just north of junction of Alpine Creek Road. 701 Comment
  SEINET12034013  Corylus rostrata var. californica Unknown 1930-1 7313 A San Mateo Los Francoo Woods Comment
  JROH3633  Cotoneaster pannosus D. E. Breedlove 1971-5-31 19365 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JEPS37555  Cotula coronopifolia W. L. Jepson 1923-10-18 10255 San Mateo w of Colma (near ocean) Comment
  JROH661  Cotula coronopifolia John Hunter Thomas 1981-5-14 20583 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Lab Comment
  UC912224  Cotula coronopifolia Herbert L. Mason 1927-4-24 3707 San Mateo mouth of San Gregorio Creek Comment
  CAS-BOT-BC291461  Cotula coronopifolia Phillip C. Wheeler 1965-5-8 s.n. San Mateo Point Sierra, San Bruno Mountain Comment
  UC1192140  Cotula coronopifolia Malcolm A. Nobs and S. Galen Smith 1949-8-26 1591 San Mateo marshes at mouth Pescadero Creek Comment
Read comments
Feb 28 2011
  JEPS10206  Crassula aquatica Rimo Bacigalupi with G. T. Robbins 1954-6-18 4561 San Mateo Point Ano Nuevo Comment
  SEINET12216216  Crassula connata E. McClintock, Knight, W.; Knight, I. 1982-1 4631 San Mateo from windy Kamchatka Point, San Bruno Mountain Comment
  CAS-BOT-BC344932  Crataegus monogyna Peter Rubtzoff; Roman Gankin 1975-5-21 7977 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  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
  POM275977  Crataegus monogyna Lyman D. Benson 1930-5-3 2104 San Mateo Santa Cruz Mt. 244 Comment
  JROH664  Crepis vesicaria subsp. taraxacifolia John H. Thomas 1958-5-10 7162 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU4570  Crepis vesicaria subsp. taraxacifolia C. S. Hendrich 1963-3-20 San Mateo Sharon Estate by Sand hill Road near Stanford Comment
  JROH4980  Crypsis schoenoides John Hunter Thomas 1980-11-12 20168 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta Comment
  JROH4997  Crypsis schoenoides Toni Corelli 2006-9-20 331 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Trail 12 In the dry Corte Madera streambed. 109 Comment
  CAS-BOT-BC189264  Cryptantha W. R. Dudley 1906-6-9 s.n. San Mateo Tunitas Road Comment
  JROH1357  Cryptantha flaccida J. I. McMurphy 1911-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1359  Cryptantha flaccida John H. Thomas 1956-4-7 5617 San Mateo Jasper Ridge Biological Preserve, Stanford University; open serpentine area on top of ridge and adjacent slopes Comment
  JROH5765  Cryptantha flaccida John Rawlings 2016-3-6 1678 San Mateo Jasper Ridge Biological Preserve, Stanford University; upper Big Inlet in serpentine along seasonal drainage 166 Comment
  UC480685  Cryptantha flaccida H. F. Copeland 1920-6-1 11120 San Mateo near Woodside Comment
  JROH1364  Cryptantha micromeres Oz Garton 1968-5-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1368  Cryptantha micromeres John Rawlings 2009-5-7 1069 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9 in chaparral. 158 Comment
  JROH1377  Cryptantha microstachys John Hunter Thomas 1978-4-22 19102 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1381  Cryptantha microstachys Toni Corelli 2007-5-2 334 San Mateo Jasper Ridge Biological Preserve, Stanford University. Upslope along Trail b 142 Comment
  JROH5670  Cryptantha microstachys John Rawlings 2015-5-7 1264 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Rd E south side of Big Inlet. 117 Comment
  RSA44329  Cupressus abramsiana Harry A. Dutton 1949-9-12 s.n. San Mateo Common corners of Sec. 11 & 12 and 13 &14, Range 4 West, North bank of North Fork of Butano Creek Comment
  CAS-BOT-BC80790  Cupressus macrocarpa J. H. Thomas 1964-6-19 10423 San Mateo About 1/2 mi below Skyline Blvd. on Half Moon Bay Road toward Crystal Springs Reservoir. Comment
  CAS-BOT-BC224412  Cuscuta californica George Oberlander 1950-7-15 1040 San Mateo San Francisco Watershed Reserve Comment
  SD38407  Cuscuta pacifica var. pacifica Edith A. Purer 1933-8-13 5408 San Mateo Small bottom near Baden Station Comment
  RSA51358  Cuscuta salina L. S. Rose 1949-8-24 49167 San Mateo South San Francisco Comment
  JROH1394  Cynoglossum grande John Hunter Thomas 1981-5-14 20573 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old shack riders shack Comment
  POM128514  Cynoglossum grande L. R. Abrams 1902-4-6 2317 San Mateo Searsville. Comment
  RSA130416  Cynoglossum grande Josephine Randall 1908-2-16 s.n. San Mateo Corte de Madera Canyon near Alpine Road. Comment
  SJSU15350  Cynoglossum grande R. S. Altmann 1976-4-21 76032 San Mateo Beside Alpine Road ca. 1 mile north intersection with Page Mill Rd. 335 Comment
  JROH5016  Cynosurus echinatus John Rawlings 2013-4-13 1127 San Mateo Jasper Ridge Biological Preserve, Stanford University. Crest of ridge above Bear Creek serpentine. 96 Comment
  JROH4383  Cyperus eragrostis John Hunter Thomas 1983-6-2 22324 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the low-flow crossing. Comment
  CAS-BOT-BC114455  Cyperus eragrostis Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo Buckeye Canyon, San Bruno Mountains. Comment
  POM182581  Cyperus eragrostis D. D. Keck 1931-8-6 1263 San Mateo Near Searsville Lake. 75 Comment
  RSA101027  Cyperus eragrostis G. Oberlander 1949-7-24 318 San Mateo Lower Crystal Springs Lake, San Francisco Watershed Reserve Comment
  SEINET3909461  Cyperus eragrostis Lewis S. Rose 1965-9-20 65107 San Mateo Burlingame, Trousdale Dr. & California Dr.; 0 9 Comment
  JROH5716  Cyperus erythrorhizos John Rawlings 2015-9-22 1640 San Mateo Jasper Ridge Biological Preserve, Stanford University. In mud of Corte Madera Creek delta near open water 104 Comment
  CAS-BOT-BC198195  Cytisus scoparius Phillip C. Wheeler 1965-4-27 s.n. San Mateo Brisbane, San Bruno Mountain Comment
  SBBG108508  Cytisus scoparius N. Meng 1964-4-18 San Mateo Pacifica 30 Comment
Read comments
Dec 6 2012
  JROH5031  Dactylis glomerata W. Lennihan 1989-5-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Across dam, down trail to meadow, turn left -- all along road before bridge over creek. Comment
  CAS-BOT-BC192235  Danthonia californica W. R. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs Comment
  SJSU10402  Danthonia californica E. C. Garbett 1960-5-1 120 San Mateo Georgia Lane c. 1 mi E of Portola Rd, Portola Valley Comment
  SJSU15927  Danthonia californica John Rawlings, Toni Corelli 2016-5-13 1759 San Mateo Vallemar Bluff, Moss Beach. USGS Montara Mountain OE W 7.5 Minute (1:24,000 Scale) Topographic Map. 11 Comment
  UCD37963  Danthonia californica Beecher Crampton 1962-6-11 6503 San Mateo San Mateo County, Sharp park suburb of pacifica, Moris' Point Road, west of State Highway 1. Comment
  UCD127385  Daucus carota Rimo Bacigalupi; G. Thomas Robbins 1955-8-4 5444 San Mateo along grade on Highway No. 1, just south of Pedro Valley. Comment
  JROH222  Daucus pusillus John H. Thomas 1968-5-22 14455 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH225  Daucus pusillus John H. Thomas 1970-4-28 15610 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1536896  Deinandra corymbosa Gordon H. True Jr. 1936-6-14 501 San Mateo s Salada Beach (meadow in canyon) 365 Comment
  CAS-BOT-BC287371  Deinandra corymbosa A. Kellogg; W. G. W. Harford 1868-6-10 486 San Mateo San Bruno Comment
  CAS-BOT-BC299190  Deinandra corymbosa subsp. corymbosa Ira L. Wiggins 1949-7-2 12199 San Mateo Pescadero Beach Comment
  CAS-BOT-BC299204  Deinandra corymbosa subsp. corymbosa James I. McMurphy 1906-11-17 2 San Mateo Portola Comment
  CAS-BOT-BC300008  Deinandra lobbii H. M. Hall 1930-8-7 12844 San Mateo Livermore Valley, Vasco Road at junction of highway Comment
  JROH3425  Delphinium californicum subsp. californicum Arthur Spiegler 1952-5-10 93 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC9236  Delphinium decorum W. R. Dudley 1896-4-17 s.n. San Mateo Pasture near Pebble Beach, Pescodero Comment
  JROH3443  Delphinium hesperium subsp. hesperium John H. Thomas 1974-5-29 17396 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC570175  Delphinium hesperium subsp. hesperium N. K. Carlson 1935-6-29 107 San Mateo 1 mi s Pescadero 91 Comment
  CAS-BOT-BC116528  Delphinium patens subsp. patens W. Dudley 1900-3-16 s.n. San Mateo Above Tripp's Store, Woodside Comment
  CAS-BOT-BC7929  Delphinium variegatum Adolph Daniel Edward Elmer 1903-5-1 4796 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC7940  Delphinium variegatum John Hunter Thomas 1971-5-2 15829 San Mateo near intersection of Canada and Edgewater Roads, about 4 miles SW of center of Redwood City 304 Comment
  CAS-BOT-BC116531  Delphinium variegatum J. Chandler 1900-3-1 s.n. San Mateo near San Bruno Comment
  CAS-BOT-BC7886  Delphinium variegatum K. Hofpaugh 1929-5-8 422 San Mateo Crystal Lake, Skyline Blvd. near San Francisco Comment
  LA207571  Delphinium variegatum Lewis S. Rose; 1933-4-30 33125 San Mateo Redwood City Comment
  POM270793  Delphinium variegatum subsp. variegatum Lyman Benson 1930-4-6 2034 San Mateo San Lorenzo Mt: Crystal Springs Lake. 183 Comment
  CAS-BOT-BC192595  Deschampsia cespitosa subsp. holciformis Henry E. Wieser 1932-5-25 s.n. San Mateo Hills back of Burlingame on Hillside Drive Comment
  CAS-BOT-BC192602  Deschampsia cespitosa subsp. holciformis Dr. E. B. Copeland 1903-6-10 3305 San Mateo Montara Point Comment
  SJSU15433  Deschampsia cespitosa subsp. holciformis Toni Corelli 2010-5-4 626 San Mateo Ano Nuevo, Cascade Field along Atkinson Bluff Trail 12 Comment
  SJSU16035  Deschampsia cespitosa subsp. holciformis John Rawlings, Toni Corelli 2016-4-29 1769 San Mateo Cascade Field along Atkinson Bluff Trail, north of Cascade Cr. Trail, in Ano Nuevo State Park 11 Comment
  JROH5046  Deschampsia danthonioides John H. Thomas 1957-4-16 6654 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA591518  Deschampsia danthonioides D. D. Keck 1932-4-29 1448 San Mateo Redwood City. Fields near the San Francisco Bay salt marshes Comment
  CAS-BOT-BC201913  Deschampsia elongata George Oberlander 1950-4-23 917 San Mateo North Cahill Ridge Comment
  CDA28787  Deschampsia elongata D. G. Kelch 2009-6-9 9 .394 San Mateo Santa Cruz Mtns.; King s Mtn. Rd. N of Summit Springs. Comment
  CAS-BOT-BC201912  Deschampsia elongata M. E. Lang 1923-5-1 s.n. San Mateo (Coal Mine Ridge) Mud Lakes Comment
  POM148896  Dicentra formosa subsp. formosa C. F. Baker 1902-3-22 344 San Mateo Crystal Springs Lake Comment
  POM87987  Dicentra formosa subsp. formosa L. R. Abrams 1902-4-13 2336 San Mateo Crystal Spring. Comment
  CAS-BOT-BC500896  Dichelostemma capitatum Mary Helen Kelson 1956-4-22 137 San Mateo Albert Way, Hillsborough, 1 mile from Skyline Blvd. Comment
  SEINET12044684  Dichelostemma capitatum R. S. Ferris 1921-1 2149 San Mateo San Bruno Mt. 183 Comment
  POM169473  Dichelostemma capitatum subsp. capitatum C. F. Baker 1903-4-6 1891 San Mateo San Bruno Hills near S.F. [San Francisco] Comment
  JROH4666  Dichelostemma multiflorum Ruth Porter 1999-5-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. North side of Road B Comment
  CAS-BOT-BC150444  Diplacus aurantiacus Fred Hemphill 1973-4-8 662 San Mateo San Carlos. Area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC150466  Diplacus aurantiacus L. R. Abrams 1915-6-23 5257 San Mateo Saratoga Big Basin Road Comment
  SEINET8390048  Diplacus aurantiacus Wesley Griesel 1963-6-20 814 San Mateo road from Palo Alto to State Hwy #5. 457 Comment
  RSA780382  Dipsacus fullonum Lyman Benson 1937-7-25 8472 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  JEPS127891  Dipsacus sativus Adam C. Schneider with C. Matt Guilliams and Will Freyman 2014-6-24 301 San Mateo Crystal Springs Reservoir Comment
  RSA187291  Dipsacus sativus John H. Thomas 1964-11-15 10528 -A San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  CAS-BOT-BC121862  Dirca occidentalis W. R. Dudley 1900-3-17 s.n. San Mateo Near top of Montara Mtn Comment
  CAS-BOT-BC121863  Dirca occidentalis F. G. Kraus 1893-5-27 s.n. San Mateo near La Honda Comment
  CAS-BOT-BC121867  Dirca occidentalis G. Edelbrock 1975-2-8 1 San Mateo San Francisco Watershed 152 Comment
  JROH4210  Dirca occidentalis John Hunter Thomas 1981-2-14 20227 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM222804  Dirca occidentalis S. S. Berry 1909-2-27 s.n. San Mateo Trail to the Hermit's (Redwood Canyon) 107 Comment
  RSA130910  Dirca occidentalis E. K. Balls 1958-7-22 23593 San Mateo North end of Searsville Lake 183 Comment
  RSA15243  Dirca occidentalis Carl B. Wolf 1927-2-17 204 San Mateo Los Trancos Creek, 2 miles back of Stanford University. Comment
  UC518034  Dirca occidentalis Lewis S. Rose 1933-6-9 33222 San Mateo San Andreas Lake Comment
  UCR143110  Dirca occidentalis L. S. Rose 1933-6-9 33222 San Mateo San Francisco Bay Region, San Andreas Lake 305 Comment
  RSA176414  Disporum hookeri var. hookeri John H. Thomas 1964-4-19 10328 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Area below dam. Comment
  RSA244344  Disporum hookeri var. hookeri C. W. Tilforth, John Dourley 1973-7-19 933 San Mateo Gazos Creek Road, between Butano and Big Basin State Parks Comment
  SACT000992  Distichlis spicata var. stolonifera Malcolm Nobs, S. Smith 1949-8-26 San Mateo Collected in the marshes at mouth of creek. Comment
  CDA19686  Dittrichia graveolens J. Beall 2001-10-18 PDR 064552 San Mateo North Coast; East end of Weeks St. next to Bay Lands Nature Preserve vicinity of East Palo Alto. 0 Comment
  JEPS9518  Dodecatheon clevelandii subsp. patulum W. L. Jepson 1922-3-19 9556 San Mateo back Hillsboro (Buriburi Ridge); Buriburi Ridge Comment
  JROH3384  Dodecatheon hendersonii Herbert Dengler 1959-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC311084  Dodecatheon hendersonii A. D. E. Elmer April, 1903 4560 San Mateo Woodside Comment
  RSA112455  Dodecatheon hendersonii subsp. cruciatum I. L. Wiggins 1929-3-24 3383 San Mateo On road to Searville Lake, back of Stanford University. Comment
  JROH1509  Draba verna John Hunter Thomas 1982-4-4 20820 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH1513  Draba verna John Hunter Thomas 1987-4-7 24172 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UC1964685  Drymocallis glandulosa Roger Raiche 1983-8-18 30634 San Mateo Montara Mt. Comment
  CAS-BOT-BC159550  Drymocallis glandulosa var. glandulosa Alice Eastwood 1912-6-10 327 San Mateo Crystal Springs Comment
  CAS-BOT-BC159535  Drymocallis glandulosa var. glandulosa W. R. Dudley 1910-5-26 s.n. San Mateo Near Los Trancos Creek, along Judge Allen's - Santa Cruz Peninsula Comment
  CAS-BOT-BC159544  Drymocallis glandulosa var. glandulosa Donald A. Johansen 1933-5-18 705 San Mateo Hills above Searsville Lake along road from Portola to La Honda Comment
  UC1206461  Drymocallis glandulosa var. wrangelliana W. R. Dudley 1900-3-17 San Mateo grade up Montara Mt. by road Santa Cruz Peninsula, grade up Montara Mt. Comment
  CAS-BOT-BC67880  Dryopteris arguta John H. Thomas 1973-6-15 16840 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  CAS-BOT-BC67886  Dryopteris arguta Margaret Barry 1937-5-15 102 San Mateo Coal Mine Ridge Comment
  JROH25  Dryopteris arguta John H. Thomas 1970-1-1 15495 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH1810  Dysphania ambrosioides John H. Thomas 1974-10-29 17642 San Mateo Jasper Ridge Biological Preserve, Stanford University; small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  JROH5095  Echinochloa crus-galli John Hunter Thomas 1988-10-17 24596 San Mateo Jasper Ridge Biological Preserve, Stanford University. Growing on delta in lake Comment
  CDA20116  Ehrharta erecta K. Melo 2003-4-21 PDR 205211 San Mateo San Francisco Bay Area; Urban yard in Redwood City. 0 Comment
  UCR242653  Ehrharta erecta A. C. Sanders 2012-11-11 40518 San Mateo SF Bay Area, Daly City near Colma, between Junipero Serra Blvd. and San Pedro Rd. on Washington St. 56 Comment
  CAS-BOT-BC112955  Eleocharis macrostachya George Thomas Oberlander 1950-5-6 922 San Mateo Marsh, San Andreas Lake. Comment
  SEINET3910868  Eleocharis montevidensis Lewis S. Rose 1950-5-20 50146 San Mateo Emerald Lake region hills w. of Redwood City.; 0 244 Comment
  CAS-BOT-BC229011  Eleocharis palustris Elizabeth McClintock; Paul Reeberg 1989-4-6 s.n. San Mateo San Bruno Mountains. At the base of Owl Canyon 45 Comment
  CAS-BOT-BC203881  Elymus X hansenii L. R. Abrams 1920-6-1 7492 San Mateo Santa Cruz Mountain Peninsula. Back of Redwood City 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
  POM199072  Elymus californicus A. D. E. Elmer 1903-06 4700 San Mateo Crystal Springs Lake. Comment
  SJSU15748  Elymus californicus John Rawlings 2015-5-11 1570 San Mateo Butano Creek near the state park boundary (and also Little Butano Cr along the six Bridges Trail) 152 Comment
Read comments
Oct 30 2017
  POM295857  Elymus glaucus Lyman Benson 1935-5-5 6541 San Mateo Lake Searsville; Santa Cruz Mt. Range 152 Comment
  UCR132239  Elymus glaucus Beecher Crampton 1962-6-11 6497 San Mateo San Francisco Peninsula, northern city limits of Pacifica along Calif. Hwy 1, just southwest of its junction with Skyline Boulevard 61 Comment
  JROH5106  Elymus glaucus subsp. glaucus John H. Thomas 1975-5-26 17919 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5114  Elymus glaucus subsp. virescens John Rawlings 2009-9-16 1017 San Mateo Jasper Ridge Biological Preserve, Stanford University. A few yards uphill of Trail a, about 35 yards from the lower Trail a terminus, near a large rock outcrop at the serpentine contact. 91 Comment
  SJSU15223  Elymus glaucus subsp. virescens Toni Corelli 2011-5-23 705 San Mateo Bean Hollow State Beach, Arroyo de los Frijoles Trail. Coastal bluff top south of Bean Hollow Beach 7 Comment
  JROH5118  Elymus multisetus John H. Thomas 1967-6-1 12949 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5955  Elymus multisetus John Rawlings 2017-5-19 2052 San Mateo Jasper Ridge Biological Preserve, Stanford University; on slope north of Global Change site, south of Field Station visitor parking lot 117 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
  SEINET6635579 Image available Epilobium brachycarpum Lewis S. Rose 1932-1 32600 San Mateo Salada Beach Comment
  RSA18504  Epilobium brachycarpum Carl B. Wolf 1927-7-14 616 San Mateo Summit of Kings Mountain Rd. Comment
  CAS-BOT-BC166140  Epilobium canum subsp. canum Lewis S. Rose 1965-9-4 65099 San Mateo Skyline Blvd. & Half Moon Bay Rd, Cahill Ridge 243 Comment
  UC124424  Epilobium canum subsp. canum C. F. Baker 1902-10-20 52 San Mateo summit of Coast Range Comment
  JROH5606  Epipactis helleborine John Rawlings, Ann Lambrecht 2011-6-21 1212 San Mateo Jasper Ridge Biological Preserve, Stanford University. Vicinity of an abandoned camper shell near a small drainage west of the switchback zone of the Escobar/Webb Ranch horse trail on north side of ridge. 100 Comment
  CAS-BOT-BC389734  Equisetum J. Lovelle 1973-8-5 48 San Mateo Pomponio Canyon Comment
  RSA430449  Equisetum hyemale var. affine Lyman Benson 1930-5-26 2128 San Mateo Stanford University. Lake Searsville. 152 Comment
  CAS-BOT-BC57608  Equisetum telmateia John Hunter Thomas 1954-4-3 3816 San Mateo La Honda Creek, about 1 mile north of La Honda 152 Comment
  JROH68  Equisetum telmateia subsp. braunii Lawrence J. Winship 1974-11-2 3 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UC311544  Equisetum telmateia subsp. braunii A. D. E. Elmer March, 1903 4501 San Mateo Portola Comment
  CHSC90173  Equisetum telmateia var. braunii Diane Mastalir 1988-3-27 4 San Mateo Near drainage ditch, 6.7 mi south of junction of Hwy 1 and Hwy 92, 1.7 mi east of Pescadero Road. 30 Comment
  POM87718  Equisetum telmateia var. braunii L. R. Abrams 1902-3-16 2282 San Mateo Kings Mountain Comment
  JROH5925  Eragrostis curvula John Rawlings 2009-5-1 1048 San Mateo Sand Hill Road at entrance to Horse Park at Woodside, on the Menlo Park-Woodside border, San Mateo Co. Comment
  JROH5144  Eragrostis pectinacea var. pectinacea Ann Lambrecht 2005-8-24 20 San Mateo Jasper Ridge Biological Preserve, Stanford University. Sand Hill Road fence 5 or 6 m from Bear Creek crossing. 89 Comment
  JROH5879  Eragrostis pectinacea var. pectinacea Ann Lambrecht 2006-7-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Sand Hill Road fence 5 or 6 m from Bear Creek crossing. 89 Comment
  CAS-BOT-BC291242  Erechtites minimus J. H. Thomas 1955-12-6 5515 San Mateo Growing on the upstream face of Pilarcitos Lake Dam Comment
  CAS-BOT-BC291243  Erechtites minimus Elizabeth McClintock; Walter Knight; Irja Knight 1963-9-2 s.n. San Mateo San Bruno Mountain. Power Line Ridge Comment
  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
  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-BC295080  Erigeron glaucus Adele Lewis Grant 1917-5-6 935 San Mateo Pebble Beach nr. Pescadero 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-BC295077  Erigeron glaucus J. P. Smith 1924-11-1 s.n. San Mateo Farralone Ids. Comment
  CAS-BOT-BC295092  Erigeron glaucus Catherine A. Toschi 1963-3-17 63 :58 San Mateo East slope of San Bruno Mountains below radio station 213 Comment
  CAS-BOT-BC216246  Eriodictyon californicum Lewis S. Rose 1941-7-2 41288 San Mateo King's Mountain 480 Comment
  CDA34113  Eriodictyon californicum D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .153 San Mateo Santa Cruz Mountains; Along Route 9, ~5 km E of Big Basin Redwoods. Comment
  HSC24048  Eriodictyon californicum Mary Katherine Wicksten 1971-6-18 6 San Mateo Huddart Park by park office Comment
  JROH2716  Eriodictyon californicum John H. Thomas 1959-4-5 7667 San Mateo Jasper Ridge Biological Preserve, Stanford University; at the western end of ridge Comment
  RSA15207  Eriodictyon californicum Carl B. Wolf 1926-10-19 90 San Mateo La Honda Grade. Santa Cruz Mtns. Comment
  UCSB16624  Eriodictyon californicum 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
  RSA766407  Eriogonum caninum D. D. Keck 1931-10-5 1281 San Mateo Dam at north end of Crystal Springs Lake. Comment
  CAS-BOT-BC253241  Eriogonum fasciculatum var. foliolosum V. F. Hesse 1953-9-24 1212 San Mateo Junction of State Highway 5 and Page Mill Road 701 Comment
  CAS-BOT-BC250540  Eriogonum gracile Gordon H. True 1937-7-31 831 San Mateo Alpine Road near Skyline Blvd. Comment
  UC1537293  Eriogonum gracile Gordon H. True Jr. 1937-7-31 831 San Mateo roadside, Alpine Road Alpine Road 182 Comment
  RSA17962  Eriogonum gracile var. gracile Carl B. Wolf 1927-8-15 718 San Mateo Jasper Ridge near Searsville Lake Comment
  CAS-BOT-BC251978  Eriogonum latifolium Barrett Anderson; Peter Rubtzoff 1988-4-22 3666 San Mateo San Bruno Mountain. Radio Road south of Guadalupe Canyon Parkway 365 Comment
  RSA165299  Eriogonum latifolium C. F. Baker 1902-10-1 1748 San Mateo Pillar Point. Comment
  CAS-BOT-BC251989  Eriogonum latifolium David D. Keck 1931-10-5 1287 San Mateo One mile north of Salada Beach, 200 m. from ocean on sand dunes Comment
  CAS-BOT-BC251998  Eriogonum latifolium R. S. Ferris 1917-10-21 730 San Mateo ocean cliff - Moss Beach Comment
  RSA523299  Eriogonum latifolium Gordon H. True Jr. 1936-6-7 486 San Mateo Cove 2 miles south of Pescadero 15 Comment
  CAS-BOT-BC264779  Eriogonum luteolum Lewis S. Rose 1931-8-28 s.n. San Mateo Crystal Spring Lakes Comment
  RSA279684  Eriogonum luteolum James L. Reveal, John H. Thomas 1975-7-31 3911 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto, on oak covered hillsides south of San Francisquito Creek 183 Comment
  JROH3234  Eriogonum luteolum var. luteolum John Hunter Thomas 1981-7-24 20728 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3238  Eriogonum luteolum var. luteolum Carol Zabel 1989-8-27 33 San Mateo Jasper Ridge Biological Preserve, Stanford University. Herb's serpentine loop, top of Trail 5. Comment
  JEPS83064  Eriogonum nudum Roy E. Buck, Randall A. Morgan, James A. West 1983-7-23 449 San Mateo 1.4 km w San Andreas Dam (at n end of Sawyer Ridge, on sw-facing slope above last curve in gravel ridge road before intersection above San Andreas Dam); San Francisco Watershed Reserve, Sawyer Ridge 312 Comment
  SEINET11938128  Eriogonum nudum var. auriculatum E. A. Purer 1933-1 5401 San Mateo Along the Bayshore Highway, near Redwood City Comment
  RSA463081  Eriophyllum confertiflorum Lyman Benson 1930-5-26 2140 San Mateo Stanford University. Lake Searsville. 152 Comment
  SEINET11850692  Eriophyllum confertiflorum Unknown 1932-1 9194 San Mateo no further locality Comment
  JROH707  Eriophyllum confertiflorum var. confertiflorum John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA203569  Eriophyllum confertiflorum var. confertiflorum Lewis S. Rose; 1933-5-17 33176 San Mateo Redwood City Comment
  CAS-BOT-BC301256  Eriophyllum lanatum var. arachnoideum Peter H. Raven 1957-6-24 10963 San Mateo Just south of Linda Mar 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
  POM204323  Eriophyllum staechadifolium I. L. Wiggins 1929-7-4 3793 San Mateo Pescadero Beach Comment
  UCR122633  Eriophyllum staechadifolium George K. Helmkamp, E. A. Helmkamp 2001-6-2 6762 San Mateo Central Coast, Pillar Point Harbor, about 4 miles north of Half Moon Bay 6 Comment
  JROH2592  Erodium botrys John H. Thomas 1968-3-31 14257 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2595  Erodium botrys John H. Thomas 1969-4-12 14888 a San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  RSA176420  Eryngium aristulatum var. aristulatum John H. Thomas 1964-7-9 10443 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  CAS-BOT-BC54513  Erysimum capitatum Reed Clark Rollins 1941-3-22 2951 San Mateo San Bruno Hills, 2 miles southeast of Daly City. Comment
  CAS-BOT-BC54822  Erysimum franciscanum A. D. E. Elmer 1903-5-1 4477 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC54825  Erysimum franciscanum Alice Eastwood 1913-2-22 2455 San Mateo San Bruno Hills. Comment
  CAS-BOT-BC54834  Erysimum franciscanum G. B. Rossbach 1955-3-12 568 San Mateo Just inland and southeast of Devil's Slide, west edge of Montara Mountains. 121 Comment
  CAS-BOT-BC54844  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1938-4-3 806 San Mateo Crests and steep upper slopes of the San Bruno Hills. 365 Comment
  CAS-BOT-BC54853  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-4-2 906 a fl. 906b fr. San Mateo Fifield Ridge, just above San Mateo Creek and north of Pilarcitos Lake. 243 Comment
  CAS-BOT-BC54870  Erysimum franciscanum Craig Martz 1985-4-15 205 San Mateo South end of Devil's Slide, both sides of SR1. From coast to saddle between San Pedro and Montara Mountain. 304 Comment
  CAS-BOT-BC54876  Erysimum franciscanum C. F. Baker 1902-3-22 342 San Mateo Crystal Spring Lakes. Comment
  CAS-BOT-BC54884  Erysimum franciscanum James Newman 1951-4-24 12 San Mateo Chrystal Springs Reservoir. 152 Comment
  RSA101866  Erysimum franciscanum G. B. Rossbach 1938-4-3 806 San Mateo San Bruno Hills 305 Comment
  RSA102123  Erysimum franciscanum G. B. Rossbach 1955-3-26 576 San Mateo Upper N slope of San Bruno Mountain, N of radio tower 335 Comment
  RSA102125  Erysimum franciscanum G. B. Rossbach 1955-3-26 577 San Mateo Near radio tower, crest of San Bruno Mountain 401 Comment
  UC1034730  Erysimum franciscanum G. B. and R. P. Rossbach 1939-5-12 912 San Mateo steep gravelly slope of headland above sea Pedro Point Comment
Read comments
Nov 23 2007
  UC1034761  Erysimum franciscanum G. B. Rossbach 1955-3 572 San Mateo high seaward slope 2 mi s San Francisco line (3 mi n of Sharp Park (Salada)) Comment
  CAS-BOT-BC403554  Eschscholzia californica W. S. Chandler 1901-3-30 s.n. San Mateo San Mateo Comment
  JROH5930  Eschscholzia californica L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Close to the Siersville Lab on the west side of the lake Comment
  CAS-BOT-BC202744  Euonymus occidentalis Roxana Stinchfield 1914-3-1 s.n. San Mateo Above Corte Madera, Santa Cruz Mts. Comment
  POM278190  Euonymus occidentalis Lyman Benson 1930-5-26 2132 San Mateo Stanford University, Lake Searsville 152 Comment
  UC1071565  Euonymus occidentalis var. occidentalis N. K. Carlson 1935-7-3 117 San Mateo 3 mi. s. Bellvale; Santa Cruz Quad. Comment
  UC153588  Euonymus occidentalis var. occidentalis L. R. Abrams 1906-9-24 San Mateo Goat Ranch Canyon near Portola; Santa Cruz Mts., Goat Ranch Canyon Comment
  UC306743  Euonymus occidentalis var. occidentalis A. D. E. Elmer 1903-1 4317 San Mateo Butano Creek Comment
  RSA130686  Euphorbia crenulata Roxana S. Ferris 1921-3-20 2114 San Mateo Pescadero - La Honda Road. 183 Comment
  UCD142398  Euphorbia helioscopia J. H. Thomas 1959-7-8 8014 San Mateo About 1/4 mile west of center of Pescadero on road toward the coast. Comment
  RSA18354  Euphorbia lathyris C. B. Wolf 1929-5-25 3734 San Mateo 2 miles from Pescadero on Alpine Creek. Comment
  UC1795595  Euphorbia oblongata J. Beall 2002-6-3 PDR 120145 San Mateo Pope at San Francisquito Creek Comment
  JROH5972  Eurybia radulina Ann Lambrecht, Alice Cummings, John Rawlings 2017-9-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Confluence of Bear Creek and San Francisquito Creek. 84 Comment
  CAS-BOT-BC310616  Eurybia radulina W. R. Dudley 1896-7-30 s.n. San Mateo Santa Cruz Mountain Peninsula. Old Cable Trail near Searsville Comment
  JROH726  Euthamia occidentalis John H. Thomas 1964-10-2 10511 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of Searsville Lake near bridge Comment
  SJSU16002  Euthamia occidentalis John Rawlings, Toni Corelli 2016-8-22 1942 San Mateo Franklin Point Trail, Ano Nuevo State Park 10 Comment
  CAS-BOT-BC239710  Fabaceae W. R. Dudley 1894-3-26 s.n. San Mateo Reservoir, San Mateo Comment
  UCD98886  Fallopia convolvulus J. D. Skoss 1948-7-25 47 San Mateo San Vicente Canyon near Montara. Comment
  CAS-BOT-BC210049  Festuca arundinacea Peter Rubtzoff 1977-6-21 9060 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction and northwest of Fog Forest. Comment
  JROH5148  Festuca arundinacea John Hunter Thomas 1977-6-16 18752 San Mateo Jasper Ridge Biological Preserve, Stanford University. Weedy area near old racing oval. Comment
  JROH5150  Festuca arundinacea John Hunter Thomas 1979-5-22 19578 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15416  Festuca arundinacea Toni Corelli 2010-5-21 672 San Mateo Pescadero State Beach and Marsh Natural Preserve. North Pond Trail 5 Comment
  JEPS21674  Festuca californica James McMurphy 1906-5-20 San Mateo road to Kings Mt. Comment
  CAS-BOT-BC278348  Festuca californica subsp. californica James McMurphy 1906-5-20 s.n. San Mateo Road to Kings Mt. Comment
  CAS-BOT-BC278356  Festuca californica subsp. californica W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Ravine north of Seal Cove Comment
  CAS-BOT-BC278360  Festuca californica subsp. californica Catherine A. Toschi 1963-3-17 63 :50 San Mateo San Bruno Mountain. Northeast slope below radio station Comment
  UCD163541  Festuca idahoensis Peter Rubtzoff 1980-5-3 9436 San Mateo San Bruno Mountains. The Edward Preston Lee Memorial Site and vicinity. 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
  CAS-BOT-BC278860  Festuca occidentalis W. R. Dudley 1898-7-1 s.n. San Mateo Pescadero Creek Comment
  JROH5508  Festuca octoflora Herb Dengler 1963-5-26 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Top of Ridge. Comment
  RSA86699  Festuca rubra D. D. Keck 1932-5-6 1478 San Mateo Above Millbrae Highlands Comment
  SEINET175509 Image available Festuca rubra David D. Keck 1932-5-6 1478 San Mateo Above Millbrae Highlands Comment
  JROH2975  Ficus carica John Hunter Thomas 1979-9-9 19710 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA134237  Fragaria californica John H. Thomas 1950-3-19 1299 San Mateo Near intersection of Coast Hwy and road to Swanton, 1 mile SE of mouth of Waddell Creek. 30 Comment
  RSA112397  Fragaria californica W. R. Dudley 1894-7-28 s.n. San Mateo Hill between Pescadero and La Honda, San Mateo County. Comment
  RSA133096  Fragaria californica Donald A. Johansen 1933-5-18 709 San Mateo Along road from Portola to La Honda. Comment
  JROH3667  Fragaria vesca John Hunter Thomas 1981-4-21 20461 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC917281  Fragaria vesca W. A. Harvey and J. M. Tucker 1948-6-29 1705 San Mateo just w road to Portola State Park jct with Highway 5 (Skyline Blvd) (beside road to Portola State Park) Comment
  CAS-BOT-BC437062  Fragaria vesca subsp. bracteata L. S. Rose 1927-3-25 s.n. San Mateo Woodside Comment
  CAS-BOT-BC457528  Fragaria vesca subsp. californica J. H. Thomas 1949-3-29 192 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
  SEINET11915234  Fragaria vesca subsp. californica L. S. Gill 1930-1 s.n. San Mateo Kuig Mt Comment
  HSC23908  Frangula californica Mary Katherine Wicksten 1971-6-17 78 San Mateo Huddart Park, along Chickadee Trail Comment
  CAS-BOT-BC52675  Frangula californica subsp. californica George Oberlander 1949-7-30 246 San Mateo Crest of Sweeney Ridge Comment
  CAS-BOT-BC52677  Frangula californica subsp. californica W. R. Dudley 1899-5-14 s.n. San Mateo Baden Brook hills Comment
  CAS-BOT-BC52679  Frangula californica subsp. californica A. D. E. Elmer 1903-7-1 4772 San Mateo Pilarcitos Stone Dam Comment
  CAS-BOT-BC52681  Frangula californica subsp. californica Elizabeth McClintock 1963-6-9 s.n. San Mateo unspecified Comment
  JROH3537  Frangula californica subsp. californica John H. Thomas 1968-5-22 14459 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3539  Frangula californica subsp. californica John H. Thomas 1971-5-30 15966 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC53598  Frangula californica subsp. tomentella John H. Thomas 1971-5-2 15863 San Mateo near intersection of Canada and Edgewater roads. About 4 miles SW of center of Redwood City 304 Comment
  JROH3576  Frangula californica subsp. tomentella John Hunter Thomas 1981-5-25 20632 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC19157  Frankenia salina J. Burtt Davy 1893-6-17 808 San Mateo Belmont Comment
  CAS-BOT-BC223551  Fraxinus latifolia W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Peninsula. Near San Mateo Creek Comment
  POM130871  Fraxinus latifolia C. F. Baker 1903-6-30 3355 San Mateo Crystal Springs Lake Comment
  RSA794663  Fritillaria affinis Lyman Benson 1930-4-27 2099 San Mateo Stanford University, Corte Madera Creek drainage area Comment
  JEPS4954  Fritillaria biflora Inez Smith 1915-3-15 San Mateo Hillsborough, El Nido Hillsborough; , El Nido Comment
  RSA289961  Fritillaria liliacea I. Smith 1915-3-15 s.n. San Mateo Hillsboro Comment
  SEINET12044985  Fritillaria liliacea H. E. Parks, Parks, S. T. 1930-1 400 San Mateo Spring Valley Lakes 152 Comment
  CAS-BOT-BC258909  Galium Peter Rubtzoff 1988-6-25 9928 San Mateo Menlo Park, on Willow Road near Alma Street. Comment
  CAS-BOT-BC389682  Galium Mary Wicksten 1968-6-20 s.n. San Mateo Mr. [Mt.] Ellen trail - Memorial Park Comment
  UCSB9136  Galium aparine Walker, Clifford 1954-4-20 San Mateo 50 yards from ocean; 1 mi S. of Half Moon Bay Comment
  UC615504  Galium californicum subsp. californicum Beryl O. Schreiber 1932-5-29 299 San Mateo w San Mateo (Skyline Boulevard) Comment
  RSA195643  Galium nuttallii John H. Thomas 1950-3-19 1301 San Mateo Near intersection of Coast Hwy and road to Swanton, 1 mile SE of mouth of Waddell Creek. 30 Comment
Read comments
Aug 8 2020
  JROH5704  Galium parisiense John Rawlings 2015-4-7 1456 San Mateo Jasper Ridge Biological Preserve, Stanford University; quarry off Trail 12 110 Comment
  JROH3817  Galium porrigens var. porrigens John Hunter Thomas 1986-5-17 24046 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dam to Rattlesnake Rock Comment
  JROH3819  Galium porrigens var. porrigens John Hunter Thomas 1992-5-25 25345 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC496159  Galium porrigens var. porrigens W. F. Wight 1900-1-28 San Mateo trail to Bukhorn Ranch above Prestons (old La Honda Rd.) Comment
  JEPS83562  Galium trifidum var. pacificum Dean W. Taylor 1987-8-20 9310 San Mateo between Whitehorse Creek and Cascade Creek (about spring/seep); Santa Cruz Mts., Cascade Ranch state park area 76 Comment
  HSC23986  Galium triflorum Mary Katherine Wicksten 1971-6-17 53 San Mateo Huddart Park on Chickadee Trail Comment
  JROH796  Gamochaeta ustulata John Hunter Thomas 1983-4-14 21403 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  CAS-BOT-BC194568  Garrya elliptica Helen M. Edwards 1917-2-1 s.n. San Mateo Los Trancos Woods Comment
  POM222795  Garrya elliptica K. L. Dole 1909-2-27 s.n. San Mateo Jasper Ridge. 183 Comment
  SEINET12137148  Garrya elliptica Unknown 1930-1 7312 San Mateo on road to Los Francos Woods Comment
  JROH5184  Gastridium phleoides Oz Garton 1968-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5188  Gastridium phleoides John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5191  Gastridium phleoides John Hunter Thomas 1982-7-3 21064 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SACT001241  Gastridium ventricosum Malcolm Nobs, S. Smith 1949-8-26 San Mateo Marshy streambank about 1 mile south of Pigeon Point. Comment
  UC1100357  Gastridium ventricosum Malcolm A. Nobs and S. Galen Smith 1949-8-26 1610 San Mateo marshy stream bank about 1 mi s Pigeon Point Comment
  CAS-BOT-BC59638  Gaultheria shallon W. R. Dudley 1894-3-24 s.n. San Mateo Lower part of Pescadero Creek. Comment
  RSA112358  Gaultheria shallon H. L. Mason 1921-07 s.n. San Mateo San Mateo County: Pescadero Creek Comment
  CDA5304  Gaura sinuata T. C. Fuller 1974-5-21 19990 San Mateo San Pedro Valley County Park, east above the end of Linda Mar Boulevard, Pacifica. 0 Comment
  CAS-BOT-BC219144  Genista monspessulana Ira L. Wiggins 1929-7-4 3790 San Mateo Moist ravine 4 mi. W. of La Honda on Hill road to Pescadero Beach Comment
  JEPS121494  Genista monspessulana Adam C. Schneider with C. Matt Guilliams 2013-3-9 43 San Mateo Crystal Springs Reservoir Comment
  JROH2004  Genista monspessulana John Hunter Thomas 1984-4-24 23298 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Sand Hill Road fence Comment
  SFV8455  Genista monspessulana M. L. Linvill 1972-5-16 9 San Mateo Woodside. Mountain Home Road, 0.2 miles from Mountain Wood Lane. Comment
  JROH2614  Geranium dissectum John H. Thomas 1973-4-14 16555 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3169  Gilia John Hunter Thomas 1983-4-20 21534 San Mateo Jasper Ridge Biological Preserve, Stanford University. Low-flow crossing Comment
  JROH3154  Gilia achilleifolia subsp. multicaulis John H. Thomas 1971-4-25 15783 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3167  Gilia clivorum John Hunter Thomas 1991-4-11 24980 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC123797  Gilia mellita Edward Lee Greene 1886-6-23 s.n. San Mateo Belmont Comment
  CAS-BOT-BC303684  Glebionis coronaria Elizabeth McClintock 1967-9-24 s.n. San Mateo San Bruno Mt. Crocker Ave Comment
  POM55189  Gnaphalium californicum A. D. E. Elmer 1903-06 4291 San Mateo Crystal Springs Lake. Comment
  RSA218022  Gnaphalium californicum Walter Knight, I. Knight 1964-4-13 711 San Mateo Power Line Ridge Comment
  RSA3894  Gnaphalium chilense I. L. Wiggins 1929-7-4 3792 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach Comment
  POM224080  Gnaphalium luteoalbum J. T. Howell 1935-1-13 12578 San Mateo Lake San Andreas. Comment
  RSA217983  Gnaphalium luteoalbum Elizabeth McClintock 1965-6-13 s.n. San Mateo Colma Canyon. Plants of San Bruno Mountain. Comment
  POM358931  Gnaphalium ramosissimum E. S. Spalding 1923-8-3 s.n. San Mateo 3 miles W of Redwood City, near Pulgas Tunnel. Comment
  POM58030  Gnaphalium stramineum E. B. Copeland 1903-6-18 3211 San Mateo Montara Point. Comment
  SEINET11843442  Grindelia X paludosa E. A. Purer 1933-1 5414 San Mateo near Baden Station Comment
  SD12573  Grindelia camporum Edith A. Purer 1933-8-4 5414 San Mateo Flat area near Baden Station Comment
  CAS-BOT-BC304510  Grindelia hirsutula David D. Keck 1931-9-27 1273 San Mateo Dumbarton Bridge Comment
  CAS-BOT-BC304528  Grindelia hirsutula Elizabeth McClintock 1967-9-24 s.n. San Mateo San Bruno Mountain. Crocker Avenue Comment
  CAS-BOT-BC304531  Grindelia hirsutula J. T. Howell 1932-10-21 s.n. San Mateo Pigeon Point 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-BC304558  Grindelia hirsutula Walter Knight; Irja Knight 1964-3-15 s.n. San Mateo San Bruno Mountain. Colma Canyon, south ridge Comment
  CAS-BOT-BC304564  Grindelia hirsutula H. L. Mason 1921-7-3 s.n. San Mateo Pescadero - La Honda Road Comment
  JEPS121472  Grindelia hirsutula Adam C. Schneider with Alison Colwell 2013-6-23 291 San Mateo Pacifica State Beach, west of CA State Highway 1. Comment
  RSA137305  Grindelia hirsutula John H. Thomas 1954-5-28 4243 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 30 Comment
  RSA296414  Grindelia hirsutula R. C. Bacigalupi, G. Thomas Robbins 1954-6-18 4550 San Mateo Along Alpine Road, 0.25 mile W of Skyline Blvd. 701 Comment
  SBBG25107  Grindelia hirsutula D. Myrick 1966-6-11 1451 San Mateo Pigeon Pt on St Hwy 1, S of San Francisco Comment
  JROH822  Grindelia hirsutula John Hunter Thomas 1981-5-25 20630 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI49183  Grindelia stricta var. angustifolia Lewis S. Rose 1938-8-18 38229 San Mateo Brisbane 2 Comment
  POM273889A  Guillenia lasiophylla Lyman Benson 1931-3-15 2649 San Mateo Emerald Lake; Redwood City; Mt. Range: Santa Cruz; Watershed: San Francisco Bay 152 Comment
  CAS-BOT-BC282868  Hainardia cylindrica A. G. Vestal 1926-5-1 s.n. San Mateo San Pedro Point Comment
  UC1146645  Hainardia cylindrica Freed W. Hoffman 1941-6-1 2238 San Mateo South Coast Ranges, along Bayshore Highway Bayshore Highway; South Coast Ranges, Bayshore Highway Comment
  CAS-BOT-BC306532  Helenium bigelovii A. D. E. Elmer 1903-7-1 4968 San Mateo San Mateo Comment
  JROH841  Helenium puberulum John Hunter Thomas 1981-7-12 20696 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM161134  Helenium puberulum Josephine Randall 1907-7-24 s.n. San Mateo Near Crystal Springs Lake. Comment
  UC1537048  Helenium puberulum Gordon H. True Jr. 1937-7-23 805 San Mateo along Skyline Blvd. to Salada Beach Road 304 Comment
  UC1598594  Helenium puberulum A. D. E. Elmer Jul 1903 4972 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC309533  Helenium puberulum George Oberlander 1949-7-30 318 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon Comment
  JROH856  Helianthella californica var. californica John Hunter Thomas 1981-5-8 20564 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH863  Helianthella californica var. californica John Hunter Thomas 1991-5-9 25042 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1833  Helianthemum scoparium John H. Thomas 1961-6-14 9537 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC305364  Helianthus annuus Ned Cahill 1974-10-8 373 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  UCSC006543  Heliotropium curassavicum Randall Morgan 1988-6-4 1227 San Mateo N of lighthouse at Pigeon Point Comment
  CAS-BOT-BC305929  Helminthotheca echioides Walter Knight; Walter Knight 1963-6-24 s.n. San Mateo San Bruno Mountain. Quarry 4 Comment
  SEINET11848411  Hemizonia congesta Unknown 1932-1 9100 San Mateo Half Moon Bay Comment
  CAS-BOT-BC314919  Hemizonia congesta subsp. luzulifolia John H. Thomas 1959-8-22 8078 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto 182 Comment
  CAS-BOT-BC314922  Hemizonia congesta subsp. luzulifolia A. D. E. Elmer 1903-6-1 4443 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC314923  Hemizonia congesta subsp. luzulifolia George Oberlander 1949-8-20 325 San Mateo Near San Andreas Lake, San Francisco Watershed Reserve Comment
  CAS-BOT-BC314927  Hemizonia congesta subsp. luzulifolia Ned Cahill 1974-4-29 188 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi. westward from Redwood City Comment
  CAS-BOT-BC314945  Hemizonia congesta subsp. luzulifolia A. D. E. Elmer 1903-5-1 4805 San Mateo Crystal Springs Lake Comment
  JEPS127874  Hemizonia congesta subsp. luzulifolia Adam C. Schneider 2013-5-17 185 San Mateo Crystal Springs Reservoir. Comment
  JEPS22892  Hemizonia congesta subsp. luzulifolia John H. Thomas 1958-11-22 7507 San Mateo about 5 mi sw of Palo Alto; Jasper Ridge 152 Comment
  LA27292  Hemizonia congesta subsp. luzulifolia Lewis S. Rose; 1941-10-24 41470 San Mateo Belmont 6 Comment
  SBBG39532  Hemizonia congesta subsp. luzulifolia L. S. Rose 1970-7-26 San Mateo Hillsborough, Black Mtn, Skyline Blvd 121 Comment
  UC1069542  Hemizonia congesta subsp. luzulifolia G. E. Sindel 1935-8-28 342 San Mateo 2 mi se Crystal Springs Lake; Santa Cruz Quad. 167 Comment
  UC193425  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-13 10225 San Mateo 2.2 km e Crystal Springs Reservoir; San Mateo Creek 38 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
  UC990621  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1909-5-25 San Mateo summit between San Mateo and Crystal Springs Lakes Comment
  RSA136195  Hemizonia pungens subsp. maritima John H. Thomas 1954-5-28 4231 San Mateo Redwood City; near intersection of Bayshore and Main Street 0 Comment
  JROH248  Heracleum maximum John H. Thomas 1961-5-5 9210 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below Searsville Dam 76 Comment
  UCSB18565  Heracleum maximum Schulte, John 1963-4-28 San Mateo Sausal Creek, Jasper Ridge Area, 3 miles SW of Stanford, between Santa Clara Valley and main front of Santa Cruz Mountains 121 Comment
  JROH892  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1981-5-25 20634 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH895  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1984-4-2 23273 3 A San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge fence Comment
  JROH4228  Hesperocnide tenella John H. Thomas 1974-5-19 17384 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC176203  Hesperolinon congestum Blanche Clear 1938-5-22 s.n. San Mateo On road to Emerald Lake Comment
  CAS-BOT-BC176207  Hesperolinon congestum H. A. Dutton 1900-4-29 s.n. San Mateo Woodside Comment
  UC191381  Hesperolinon congestum Edward Lee Greene 1887-6-11 San Mateo Comment
  OBI12527  Hesperolinon micranthum Lewis S. Rose 1956-6-11 56093 San Mateo Emerald Lake, Hills W of Redwood city 183 Comment
  JROH3680  Heteromeles arbutifolia John H. Thomas 1974-5-29 17406 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0072445  Heteromeles arbutifolia John H. Thomas 1958-11-22 7504 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  RSA681422  Heteromeles arbutifolia Annuschka Deb 1989-1-27 14 San Mateo Woodside. Comment
  CAS-BOT-BC311097  Heterotheca oregona var. scaberrima W. R. Dudley 1896-10-11 s.n. San Mateo Santa Cruz Mountain Peninsula. On railroad track between Menlo Park and Palo Alto Comment
  RSA471598  Heterotheca sessiliflora subsp. bolanderi E. A. Purer 1933-8-4 5400 San Mateo Along Bayshore Hwy near Redwood City. Comment
  UCR121560  Heuchera micrantha George K. Helmkamp, E. A. Helmkamp 1999-6-28 4975 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  CAS-BOT-BC420900  Heuchera micrantha var. erubescens Josephine D. Randall 1907-7-7 s.n. San Mateo Kings Mt Comment
  RSA0063144  Heuchera micrantha var. hartwegii A. D. E. Elmer 1903-07 4762 San Mateo Pilarcitos Stone Dam. Comment
  SEINET191615  Heuchera micrantha var. pacifica L. S. Rose 1941-7-2 41289 San Mateo Kings Mt 610 Comment
  OBI49218  Hieracium albiflorum Lewis S. Rose 1939-6-16 39279 San Mateo Kings Mtn 671 Comment
  RSA120374  Hierochloe occidentalis Le Roy Abrams 1904-3-7 s.n. San Mateo Bear Gulch, Santa Cruz Mountains Comment
  SEINET10598881  Hierochloe occidentalis Charles F. Baker 1902-1-15 Baker 247 San Mateo West side King's Mountain. About ledges and rocky places Comment
  CAS-BOT-BC55443  Hirschfeldia incana J. H. Thomas 1963-8-4 10234 San Mateo About 2.5 miles inland from San Gregorio along the highway. Comment
  CAS-BOT-BC55433  Hirschfeldia incana Ira L. Wiggins 1975-8-5 22174 San Mateo Bed of San Francisquito Creek, ca. 100 m above Pope Street bridge, both sides of Santa Clara--San Mateo line. Comment
  CAS-BOT-BC289251  Holcus lanatus Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo Crocker Avenue, San Bruno Mountain Comment
  JROH5213  Holcus lanatus John Hunter Thomas 1982-6-7 21033 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA2181  Holcus lanatus C. M. Sill 1960-1-15 San Mateo Plath Nursery, Pescadero. 0 Comment
  RSA121231  Holcus lanatus N. K. Carlson 1935-7-3 113 San Mateo 3 miles S of Bellvale. 91 Comment
  HSC24044  Holodiscus discolor Mary Katherine Wicksten 1971-6-17 11 San Mateo Huddart Park. Comment
  NY42430  Holodiscus discolor J. B. Walker 1994-8-14 908 San Mateo Pomponio Creek Rd, 5km S of junction of Hwy 84 & Hwy 1 10 Comment
  RSA176728  Holodiscus discolor John H. Thomas 1962-7-15 9916 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  RSA262239  Holodiscus discolor John H. Thomas 1971-5-30 15982 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  POM205104  Hordeum brachyantherum E. B. Copeland 1903-6-10 3304 San Mateo Montara Point. Comment
  RSA185013  Hordeum brachyantherum L. S. Rose 1963-4-27 63001 San Mateo Skyline Blvd, open hills west of San Mateo. 91 Comment
  RSA60658  Hordeum brachyantherum I. L. Wiggins 1950-5-20 12352 A San Mateo Pescadero Beach Comment
  RSA6305  Hordeum brachyantherum D. D. Keck 1965-5-6 1465 San Mateo Belmont Comment
  CAS-BOT-BC284676  Hordeum brachyantherum subsp. brachyantherum Peter H. Raven 1950-6-3 2214 San Mateo Along Millbrae Ave., Millbrae 60 Comment
  SEINET10826894  Hordeum brachyantherum subsp. brachyantherum Adolph D. E. Elmer Elmer 4851 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC289531  Hordeum brachyantherum subsp. californicum Ira L. Wiggins 1950-5-20 12352 A San Mateo Pescadero Beach Comment
  JROH5222  Hordeum brachyantherum subsp. californicum John H. Thomas 1975-5-26 17916 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5225  Hordeum brachyantherum subsp. californicum John Hunter Thomas 1979-5-22 19575 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5230  Hordeum brachyantherum subsp. californicum John Hunter Thomas 1981-5-19 20607 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC285146  Hordeum marinum subsp. gussoneanum Elizabeth McClintock; Paul Reeberg 1989-4-10 s.n. San Mateo San Bruno Mountains. PG&E Marsh 7 Comment
  JROH5243  Hordeum marinum subsp. gussoneanum John Hunter Thomas 1981-5-14 20579 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC289459  Hordeum murinum subsp. leporinum John H. Thomas 1962-4-24 9847 San Mateo San Bruno Mountain in northern part of county 396 Comment
  RSA181231  Hordeum murinum subsp. leporinum John H. Thomas 1963-5-20 10152 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  SD99477  Hordeum murinum subsp. leporinum Ira L. Wiggins 1975-4-17 22143 San Mateo NE side of Southern Pacific right-of-way, between San Francisquito Creek and Willow Road, Menlo Park Comment
  CAS-BOT-BC271352  Hordeum vulgare John H. Thomas 1971-4-25 15793 San Mateo Intersection of Interstate 280 and Sand Hill Road behind Stanford Univ. Campus Comment
  CAS-BOT-BC271353  Hordeum vulgare J. H. Thomas 1962-5-12 9862 San Mateo Franklin Point, about sea level Comment
  CAS-BOT-BC271357  Hordeum vulgare Mary Helen Kelson 1956-4-27 150 San Mateo One mile from beach at Pescadero Comment
  CAS-BOT-BC271361  Hordeum vulgare W. R. Dudley 1896-4-4 s.n. San Mateo Near Crystal Springs, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC536140  Horkelia californica John H. Thomas 1964-6-19 10425 San Mateo 0.9 mile south of Tunitas Creek near Cost Highway 60 Comment
  RSA498673  Horkelia californica E. A. Purer 1933-7-27 5341 San Mateo Pigeon Point Comment
  CAS-BOT-BC536154  Horkelia californica David D. Keck 1939-7-1 5008 San Mateo 3 miles south of Pescadero, 1 mile from the ocean 60 Comment
  SEINET7097934  Horkelia californica subsp. californica A. G. Vestal 1937-6-15 s.n. San Mateo Lat. 37 14' 13ao N, Long. 122 24' 55ao W (NAD27 converted to WGS84 decimal degrees). Pebble Beach west of Pescadero. UTM Zone 10, 551863 mE, 4121109 mN. Comment
  SEINET6755152  Horkelia cuneata subsp. sericea A. A. Heller 1906-6-8 8374 San Mateo Near Ocean View, San Francisco. ( on the Lake Merced side of the Ocean Shore tracks) Comment
  UC964738  Hydrocotyle moschata W. J. Bevan 1951-5-4 San Mateo 24 Belford Way, San Mateo Comment
  CAS-BOT-BC411331  Hypericum canadense Vern Yadon 1994-7-8 s.n. San Mateo East of highway 1, common in two places, several acres. South of gazon Cr. and north of Ano Nuevo. Southern San Mateo County Comment
  CHSC99214  Hypericum canariense John Dittes; Josephine Guardino 2007-6-30 1457 San Mateo Central Coast; Ano Nuevo State Reserve; coastal terrace ca. 2.4 air-mile SE of Pidgeon Point Lighthouse; east side of Highway 1 on slope south and east of Gazos Creek. Undesignated section of Punta Del Ano Nuevo Land Grant. 21 Comment
  UCD160238  Hypericum canariense Christopher Dillis 2015-5-15 2 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
  CAS-BOT-BC311393  Hypochaeris glabra John H. Thomas 1955-4-6 4843 San Mateo East facing slope of San Bruno Mountain just north of South San Francisco 91 Comment
  CAS-BOT-BC311397  Hypochaeris glabra Fred Hemphill 1973-4-22 778 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC311492  Hypochaeris radicata A. D. E. Elmer 1903-4-1 4861 San Mateo Lake San Andreas Comment
  JROH940  Hypochaeris radicata John Hunter Thomas 1988-5-16 24464 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  SD39734  Hypochaeris radicata Edith A. Purer 1933-7-27 5342 San Mateo Pigeon Point Comment
  CAS-BOT-BC311493  Hypochaeris radicata Elizabeth McClintock 1965-5-23 s.n. San Mateo San Bruno Mountain. Top ridge east of Nike Station Comment
  SEINET10560665  Hystrix californica Peter H. Raven 1967-6-25 Raven 21418 San Mateo Pescadera Road 2.8 mi SW of Alpine Road, borders of coniferous forest. Comment
  OBI33307  Ilex aquifolium Marcia Meissner 1965-5-7 5 San Mateo Growing in garden at 139 Scenic Dr., Redwood City Comment
  RSA152265  Iris douglasiana John H. Thomas 1961-5-7 9304 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  UCR198043  Iris douglasiana S. Seiki, Patricia Carter 1998-5-2 02 San Mateo Montara Mountain, city of Pacifica, c. 2.4 mi from San Pedro Valley along Devil's Slide heading west Comment
  CAS-BOT-BC133655  Iris longipetala C. F. B. 1902-3-22 348 San Mateo South San Francisco Comment
  UC494237  Iris macrosiphon Anna E. Ehlers 281 San Mateo San Andreas Comment
  RSA185842  Iris missouriensis John H. Thomas 1954-5-28 4240 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 30 Comment
  JROH4432  Iris pseudacorus John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4435  Iris pseudacorus M. Whitley 1990-4-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By floats in Searsville Lake. Comment
  CAS-BOT-BC57733  Isoetes howellii L. R. Abrams 1923-4-19 10108 San Mateo Alameda de los Pulgas back of Menlo Park Comment
  RSA116774  Isoetes howellii W. R. Dudley 1909-10-31 s.n. San Mateo Woodside Valley pond. Comment
  RSA132406  Isolepis cernua John H. Thomas 1959-7-8 8017 San Mateo Pescadero Beach. Comment
  SJSU15910  Isolepis cernua John Rawlings, Sara Timby, Toni Corelli 2016-4-23 1735 San Mateo Bean Hollow bluff trail west of Hwy 1 south of Pescadero 8 Comment
  CAS-BOT-BC112607  Isolepis cernua Herbert L. Mason 1949-7-7 14027 San Mateo Nouth of Gazos Creek near the ocean. Southern part of county. Comment
  CAS-BOT-BC112615  Isolepis cernua George Thomas Oberlander 1949-7-10 273 San Mateo Marsh, Upper Crystal Spr. Lake. Comment
  CAS-BOT-BC112621  Isolepis cernua W. R. Dudley 1909-10-4 s.n. San Mateo Border of Laguna Alta near Mussel Rock. Comment
  SEINET7589098 Image available Isolepis cernua Unknown 1939-8-2 9290 San Mateo Ano Nuevo Point. Comment
  UCR254887  Juncus balticus Peter Rubtzoff, Elizabeth McClintock 1990-8-31 10044 San Mateo San Bruno Mountains, Willow Pond (located near Saddle Trail), c. 0.15 miles north of junction with Old Guadalupe Trail 210 Comment
  SEINET10879451  Juncus balticus P. Rubtzoff, Elizabeth M. McClintock 1989-8-31 Rubtzoff 10045 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, along old Guadalupe Road, east of the Saddle Trail junction, San Bruno Mountains. Comment
  JROH4448  Juncus bolanderi Ann Lambrecht 2004-7-21 12 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Corte Madera Creek. Comment
  CAS-BOT-BC173699  Juncus bufonius Peter Rubtzoff 1977-6-7 9029 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  SEINET3877711  Juncus bufonius Kaye H. Thorne, J. Chandler 1986-7-25 4944 San Mateo Half Moon Bay, 2 mi S of Moss Beach at Dune Beach. Sand dunes and beach area adjacent to the Pacific Ocean.; 0 Comment
  SJSU15957  Juncus bufonius var. bufonius John Rawlings, Ken Hickman 2016-5-26 1834 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
  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
  JROH4461  Juncus bufonius var. occidentalis John H. Thomas 1967-5-12 12888 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4470  Juncus bufonius var. occidentalis John Hunter Thomas 1983-5-23 22251 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Near shack side and low-flow crossing. Comment
  SJSU15769  Juncus bufonius var. occidentalis Toni Corelli 2010-5-13 621 San Mateo Pedro Point Headlands, Pacifica, CA. Along Arroyo Trail 167 Comment
Read comments
Sep 10 2021
  SJSU16033  Juncus capitatus Toni Corelli, John Rawlings 2016-4-29 1773 San Mateo Cascade Field along Atkinson Bluff Trail, north of Cascade Cr. Trail, in Ano Nuevo State Park 11 Comment
  POM193864  Juncus occidentalis A. D. E. Elmer 1903-06 4439 San Mateo Crystal Springs Lake. Comment
  RSA195685  Juncus occidentalis John H. Thomas 1967-5-10 12856 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  UC14912  Juncus occidentalis Joseph Burtt Davy 1893-6-22 761 San Mateo Lake Vilarcitos Comment
  JEPS128399  Juncus patens Adam C. Schneider 2013-5-17 129 San Mateo Crystal Springs Reservoir. Comment
  JROH4502  Juncus patens John Hunter Thomas 1981-7-12 20687 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM226872  Juncus patens Le Roy Abrams 1914-7-1 5115 San Mateo Searsville Lake. Comment
  CAS-BOT-BC210091  Juncus phaeocephalus Peter Rubtzoff 1978-8-17 9260 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC210152  Juncus phaeocephalus Peter Rubtzoff 1979-7-26 9297 San Mateo 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-BC154127  Juncus phaeocephalus var. paniculatus Peter Rubtzoff 1979-7-26 9298 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. 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
  JROH4505  Juncus xiphioides John H. Thomas 1967-6-1 12960 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4041  Kickxia spuria John H. Thomas 1964-10-2 10514 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam along stream Comment
  JROH5272  Koeleria macrantha W. Lennihan 1990-5-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Escobar cutoff (Trail 15), left side of trail past exclosure. Comment
  RSA18374  Koeleria macrantha C. B. Wolf 1927-7-1 534 San Mateo Above Emerald Lake, back of Redwood City. Comment
  UCD85703  Koeleria macrantha A. A. Beetle 1942-6-11 3594 San Mateo 2 miles north of South San Francisco. Comment
  CAS-BOT-BC273738  Koeleria pyramidata Ned Cahill 1974-4-30 226 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood 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
  JROH953  Lactuca serriola John Hunter Thomas 1978-7-14 19264 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville entrance Comment
  CAS-BOT-BC353467  Lactuca serriola Peter Rubtzoff 1975-9-11 8379 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC340706  Lactuca virosa Walter Knight; Irja Knight 1963-7-27 s.n. San Mateo San Bruno Mountain. Saddle Camp Comment
  UCD133509  Lactuca virosa John Thomas Howell 1954-9-8 30108 San Mateo Skyline Blvd. at San Andreas Lake, 2 miles west of San Bruno. Comment
  JROH966  Lagophylla ramosissima John Hunter Thomas 1983-7-20 22900 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC341638  Lagophylla ramosissima David D. Keck; W. M. Heusi 1929-10-24 500 San Mateo Summit of Coast Range, Alpine Creek Road 765 Comment
  JROH969  Lagophylla ramosissima Carol Zabel, Ann Lambrecht, John Rawlings 2004-8-25 0053 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5632  Lapsana communis John Rawlings 2014-5-28 1244 San Mateo Jasper Ridge Biological Preserve, Stanford University. NW end of the Low Flow Crossing, San Francisquito Creek. 81 Comment
  POM361529  Lasthenia californica Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  CAS-BOT-BC339070  Lasthenia californica H. L. Mason 1917-4-10 116 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC339090  Lasthenia californica John H. Thomas 1969-4-24 14922 A San Mateo Near Canada College, Redwood City, near Farm Hill Drive Comment
  UC202790  Lasthenia californica subsp. californica A. D. E. Elmer 1903-4-1 4738 San Mateo San Bruno Hills Comment
  UC30457  Lasthenia californica subsp. californica J. Burtt Davy 1897-4-1 San Mateo Ocean View Comment
  JEPS23589  Lasthenia californica subsp. macrantha Adele Lewis Grant 1917-5-6 939 San Mateo Pebble Beach near Pescadero 3 Comment
  SJSU11826  Lasthenia californica subsp. macrantha P. D. Kinzli 1964-4-17 73 San Mateo by outlet of Pescadero Cr into ocean Comment
  SEINET11811267  Lasthenia chrysostoma Unknown 1932-1 9113 San Mateo Spring Valley Lake Comment
  SEINET11811271  Lasthenia chrysostoma L. K. Henry 1956-1 s.n. San Mateo along Pacific Ocean at Pigeon Point Lighthouse on Rt. 1 Comment
  CAS-BOT-BC355499  Lasthenia glaberrima R. Bacigalupi 1923-4-16 s.n. San Mateo Field near San Francisquito Creek near Stanford University Comment
  RSA14967  Lasthenia glabrata subsp. glabrata L. S. Rose 1935-5-4 35148 San Mateo Burlingame. Comment
  SJSU653  Lasthenia gracilis A. W. Jacobs 1941-4-20 San Mateo Jasper Ridge above Searsville L Comment
  CAS-BOT-BC368192  Lasthenia minor K. L. Chambers 1956-6-20 1047 San Mateo Pebble Beach near Pescadero Point, between Hwy 1 and the ocean, on bluff near parking area. Comment
  UC188985  Lasthenia minor Michener and Bioletti 1892-5-1 San Mateo Cemeteries Comment
  CAS-BOT-BC368193  Lasthenia minor James McMurphy 1909-6-13 s.n. San Mateo Colma to San Bruno hills Comment
  SJSU11831  Lasthenia minor T. J. Sammis 1974-5-2 San Mateo Pescadero Rd 2.2 mi W of Pescadero Comment
  UCSC003528  Lasthenia minor Randall Morgan 2001-5-9 3728 San Mateo Bean Hollow State Beach parking area, San Mateo County Comment
  JROH2031  Lathyrus vestitus var. vestitus John H. Thomas 1973-4-14 16570 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA5009  Lavatera arborea T. C. Fuller 1960-10-5 5199 San Mateo Highway 1 at Pebble Beach State Park, south of Pescadero. 0 Comment
  CAS-BOT-BC323182  Layia chrysanthemoides John Thomas Howell 1933-5-26 11343 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC323183  Layia chrysanthemoides Donald A. Johansen 1933-5-27 803 San Mateo Along Skyline Boulevard at junction of side road leading to Burlingame Comment
  POM298262  Layia chrysanthemoides D. D. Keck 1932-5-6 1487 San Mateo Near Skyline Blvd, W of Millbrae Highlands. Comment
  UC913051  Layia gaillardioides David D. Keck 1932-6-1 1798 San Mateo 1. 5 mi ne of La Honda; Santa Cruz Mountains 213 Comment
  UC990575  Layia gaillardioides James I. McMurphy 1909-5-25 San Mateo above Pulpit Rock; San Mateo Canyon 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-BC321116  Layia gaillardioides David D. Keck 1932-5-11 1763 San Mateo La Honda road 2 miles W of Skyline Blvd. Comment
  SDSU2788  Layia gaillardioides D. F. Howe 1967-4-14 4351 San Mateo 7 miles from San Mateo on road to Half Moon Bay. 122 Comment
  UC89225  Layia gaillardioides Katharine Brandegee 1905-6-20 San Mateo banks a few miles from San Mateo 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-BC327452  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-BC327457  Layia hieracioides David D. Keck; Wm. M. Hiesey 1940-6-1 5166 San Mateo Skyline Boulevard opposite north end of Lake San Andreas 137 Comment
  CAS-BOT-BC327461  Layia hieracioides Fred Hemphill 1973-4-22 729 San Mateo San Carlos. Chaparral area N of Malabar Rd and Melendy Dr. 207 Comment
  JEPS22902  Layia hieracioides John H. Thomas 1958-5-10 7158 San Mateo 5 mi sw Palo Alto; Searsville Lake 152 Comment
Read comments
Jul 14 2009
  JEPS27361  Layia hieracioides Rimo Bacigalupi with Jim Roof and L. R. Heckard 1961-4-24 7621 San Mateo lateral ridge below and se of end of paved ridge-top road just e KRON television tower and station (Guadalupe Valley side of mt.); San Bruno Mountain 304 Comment
  JROH988  Layia hieracioides John Hunter Thomas 1980-5-8 19945 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA15482  Layia hieracioides L. S. Rose 1936-5-28 36309 San Mateo Emerald lake, W. of Redwood City 91 Comment
  CAS-BOT-BC327453  Layia hieracioides David D. Keck 1933-5-11 2299 San Mateo Near west base of Montara MOuntain Grade (south side of mountain) Comment
  CAS-BOT-BC327480  Layia hieracioides Walter Knight; Irja Knight 1965-4-25 1238 San Mateo San Bruno Mountain; Power Line Ridge. Comment
  UC468859  Layia hieracioides Katharine Brandegee 1908-5-1 San Mateo San Bruno Hills Comment
  CAS-BOT-BC382085  Layia platyglossa Ned Cahill 1975-1-8 392 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC382218  Layia platyglossa David D. Keck 1932-5-6 1491 San Mateo East side of Crystal Springs Lake 60 Comment
  CAS-BOT-BC382220  Layia platyglossa David D. Keck 1932-6-18 1980 San Mateo Skyline Blvd. at Langley Hill (SW of Stanford University) 600 Comment
  POM190415  Layia platyglossa subsp. campestris D. D. Keck 1932-6-18 1980 San Mateo Skyline Boulevard, at Langley Hill (SW of Stanford University) 610 Comment
  RSA18086  Lemna gibba Carl B. Wolf 1929-4-29 3662 San Mateo Small reservoir, 1 mile S of Portola, San Mateo Comment
  CAS-BOT-BC527267  Lemna minuta Ira L. Wiggins 1980-9-1 22271 San Mateo Pool in San Francisquito Creek, ca. 250 m. upstream from Pope Street Bridge, Menlo Park Comment
  CAS-BOT-BC221536  Lepechinia calycina Fred Hemphill 1973-4-22 721 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  JROH2792  Lepechinia calycina John H. Thomas 1973-5-5 16769 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA409617  Lepechinia calycina E. S. Spalding 1923-8-8 s.n. San Mateo 8 mi. W of Redwood City, near Pielgas Tunnel. Comment
  CAS-BOT-BC166770  Lepidium didymum Peter Rubtzoff 1978-7-8 9233 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC89218  Lepidium draba J. H. Thomas 1956-4-27 4920 San Mateo Along Bayshore Highway, east of San Carlos. Comment
  JEPS127808  Lepidium nitidum Adam C. Schneider with C. Matt Guilliams 2013-4-7 70 San Mateo Along dirt road running parallel to overhead power lines. GPS coordinates approximate. Comment
  JROH1543  Lepidium nitidum John H. Thomas 1968-3-17 14190 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC10674  Lepidium nitidum Mrs. Brandegee 1892-4-9 San Mateo South San Francisco Comment
  CAS-BOT-BC12954  Lepidium strictum David D. Keck 1933-5-11 2301 San Mateo Montara Summit, Montara Mountain. Comment
  JROH5275  Leptochloa fusca subsp. uninervia John Hunter Thomas 1980-11-27 20179 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta in Searsville Lake (formed by Corte Madera Creek). Comment
  JROH3174  Leptosiphon androsaceus L. Fletcher 1986-4-17 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3178  Leptosiphon androsaceus John Rawlings 2013-4-2 1157 San Mateo Jasper Ridge Biological Preserve, Stanford University. Northwest side of small drainage upstream from the upper bridge on Trail 11. 134 Comment
  UC2049870  Leptosiphon androsaceus H. W. Johansen 1958-8-13 116 San Mateo Crystal Springs Road, 2 miles W of San Mateo Comment
  RSA18092  Leptosiphon androsaceus C. B. Wolf 1929-4-24 3656 San Mateo south west end of Jasper Ridge, near Searsville Lake Comment
  RSA8491  Leptosiphon androsaceus L. S. Rose 1933-4-30 33135 San Mateo Redwood City 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
  UC106861 Image available Leptosiphon croceus Alice Eastwood 1901-5-10 San Mateo Blenheim Comment
  UC176059  Leptosiphon croceus Miss Kate Cole May 1914 San Mateo Moss Beach Comment
Read comments
Feb 8 2016
  CAS-BOT-BC300525  Leptosiphon liniflorus R. K. Wellman 1981-5-14 027 San Mateo Sawyer Camp Rd. in Hillborough [Hillsborough] city limits. 1/2 mi in from rd. start 15 Comment
  RSA107079  Leptosiphon liniflorus L. S. Rose 1956-5-7 56068 San Mateo Skyline Blvd west of San Mateo. 183 Comment
  RSA0103655  Leptosiphon parviflorus C. B. Wolf 1929-5-25 3727 San Mateo Pebble Beach, S of Pescadero. Comment
  CAS-BOT-BC324059  Lessingia arachnoidea Lewis S. Rose 1954-8-29 54111 San Mateo East side of Crystal Springs Lake Comment
  CAS-BOT-BC324065  Lessingia arachnoidea L. S. Rose 1941-9-6 41434 San Mateo San Mateo Canyon 90 Comment
  CAS-BOT-BC325498  Lessingia arachnoidea L. R. Abrams 1902-9-2 2996 San Mateo Crystal Lake Comment
  JEPS20591  Lessingia arachnoidea John Thomas Howell 1926-10-9 2220 A San Mateo near Crystal Springs Lake 91 Comment
  POM263773  Lessingia arachnoidea L. S. Rose 1941-9-6 41434 San Mateo San Mateo Canyon 90 Comment
  POM289269A  Lessingia arachnoidea Lyman Benson 1934-7-29 6109 San Mateo Crystal Springs Lake; Mt. Range: Santa Cruz; Watershed: S. F. Bay. 152 Comment
  POM289269B  Lessingia arachnoidea Lyman Benson 1934-7-29 6109 San Mateo Crystal Springs Lake; Mt. Range: Santa Cruz; Watershed: S. F. Bay. 152 Comment
  SEINET5782289 Image available Lessingia arachnoidea L. S. Rose 1941-9-6 41434 San Mateo San Mateo Canyon Comment
  UC1026397  Lessingia arachnoidea Lewis S. Rose 1954-8-29 54111 San Mateo slopes e Crystal Springs Lake Comment
  JROH1007  Lessingia glandulifera var. glandulifera John H. Thomas 1961-6-7 9532 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1009  Lessingia glandulifera var. glandulifera John H. Thomas 1963-5-15 10091 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1013  Lessingia glandulifera var. glandulifera John H. Thomas 1975-5-26 17902 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1022  Lessingia glandulifera var. glandulifera John Hunter Thomas 1983-6-29 22714 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC324175  Lessingia hololeuca LeRoy Abrams 1902-9-21 2987 San Mateo Crystal Springs Comment
  JEPS20328  Lessingia hololeuca Lewis S. Rose 1949-8-14 49165 San Mateo w of Redwood City; Emerald Lake Comment
  OBI15794  Lessingia hololeuca Lewis S. Rose 1964-9-5 64072 San Mateo Emerald Lake; W of Redwood city 152 Comment
  RSA51399  Lessingia hololeuca L. S. Rose 1949-8-14 s.n. San Mateo Emerald Lake, W of Redwood City Comment
  JROH5841  Leucanthemum maximum Ann Lambrecht 2009-7-22 35 San Mateo Jasper Ridge Biological Preserve, Stanford University; in now-dry bed of San Francisquito Creek below Dennis Martin marker Comment
  UCD61335  Leymus californicus P. B. Kennedy 1916-5-7 San Mateo Crocker Estate, Burlingame. Comment
  UCD64550  Leymus condensatus David L. Morgan 1955-8-1 San Mateo Lower San Mateo County: 1 mile N of Santa Cruz county line on Hwy 1. 22 Comment
  CAS-BOT-BC272191  Leymus triticoides W. R. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs Lake, Santa Cruz Mountain Peninsula Comment
  JEPS71199  Leymus triticoides William S. Cooper 1919-7-22 214 San Mateo Ano Nuevo Pt. Comment
  RSA108327  Leymus triticoides Frank W. Gould 1941-5-10 1292 San Mateo 1 mile north of Pigeon Point lighthouse 15 Comment
  CAS-BOT-BC436528  Ligusticum apiifolium A. A. Heller 1907-4-20 8456 San Mateo San Bruno Hills Comment
  CAS-BOT-BC436531  Ligusticum apiifolium A. D. E. Elmer 1903-7-1 4966 San Mateo San Mateo Comment
  JROH2983  Ligustrum lucidum Ann Lambrecht, Paul Heiple 2008-1-9 39 San Mateo Jasper Ridge Biological Preserve, Stanford University; on Trail c Comment
  JEPS32129  Lilaea scilloides W. L. Jepson 1923-10-18 10260 San Mateo Colma Comment
  RSA3936  Lilaea scilloides W. R. Dudley 1893-05 s.n. San Mateo Santa Cruz Mountain peninsula: Back of Mira Vista, near Stanford University Comment
  CAS-BOT-BC130796  Lilium pardalinum Ira L. Wiggins 1929-7-4 3771 San Mateo 4 mi. W. of La Honda on hill road to Pescadero Comment
  UC1278836  Limosella acaulis J. Clausen 1939-7-1 1744 San Mateo Ano Nuevo Point Comment
  JEPS9791  Limosella aquatica Franklin P. Nutting 1893-7-16 San Mateo Lake San Andreas Comment
  UCR66506  Linanthus ambiguus L. S. Rose 1948-5-16 48115 San Mateo San Francisco Bay Region, Emerald Lake, hills west of Redwood City 152 Comment
  UC52732  Linanthus androsaceus Ivan Tidestrom May 1894 San Mateo San Mateo Comment
  SEINET12279017  Linanthus androsaceus Unknown 1932-1 9020 San Mateo Los Francos Woods Comment
  JEPS113041  Linanthus liniflorus subsp. pharnaceoides Dean W. Taylor 1994-5-10 14263 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
  CDA6305  Linaria purpurea T. C. Fuller 1968-10-3 17659 San Mateo Christie s Crescent Nursery, Half Moon Bay. 0 Comment
  CAS-BOT-BC389719  Lithocarpus densiflorus Virginia Welch 1972-9-25 63 San Mateo King Mt. Rd. above Huddart Park Entrance Comment
  JEPS85571  Lithocarpus densiflorus Craig Dremann 1986-8-30 320 San Mateo La Honda; along Calif Highway 84 (La Honda-Woodside Rd) at mile marker 8.37 at intersection of Pescadero Rd Comment
  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-BC36065  Lithocarpus densiflorus var. densiflorus W. R. Dudley 1895-3-26 s.n. San Mateo La Honda, 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
  JROH3890  Lithophragma affine John Hunter Thomas 1981-4-23 20468 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  CAS-BOT-BC430766  Lithophragma affine Evelina Cannon 1895-3-23 s.n. San Mateo South San Francisco Comment
  CAS-BOT-BC436221  Lithophragma heterophyllum Ira L. Wiggins 1928-4-14 2900 San Mateo Alpine Creek Road Comment
  JROH3901  Lithophragma heterophyllum Brenda Butner and Toni Corelli 1990-3-30 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 3 Comment
  CAS-BOT-BC342308  Logfia filaginoides Peter H. Raven 1950-4-16 1803 San Mateo Summit ridge, San Bruno Mts. 243 Comment
  CAS-BOT-BC342468  Logfia gallica J. H. Thomas 1961-5-14 9388 San Mateo Southern part of San Francisco Watershed Reserve near Roth Estate 152 Comment
  JROH729  Logfia gallica John H. Thomas 1961-4-29 9193 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH730  Logfia gallica John H. Thomas 1967-4-28 12721 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC283224  Lolium multiflorum John H. Thomas 1971-5-2 15818 San Mateo Near intersection of Canada Road and Edgewater Road, about 3 miles W from Redwood City 152 Comment
  UCD66070  Lolium multiflorum Lewis S. Rose 1966-5-2 66036 San Mateo Emerald Lake, west of Redwood City. 91 Comment
  UC38772  Lolium perenne Alice Eastwood May 1894 San Mateo South San Francisco Comment
  UCD164421  Lolium perenne Peter Rubtzoff 1977-6-21 9058 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, northwest of Fog Forest. Comment
  CAS-BOT-BC269127  Lolium perenne W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Road at top of Matara Mt. Comment
  RSA184982  Lolium perenne subsp. multiflorum L. S. Rose 1966-5-2 66036 San Mateo Emerald Lake, west of Redwood City. 91 Comment
  JROH256  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1958-5-10 7145 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1301125  Lomatium dasycarpum subsp. dasycarpum Helen K. Sharsmith 1963-2-16 5145 San Mateo summit San Bruno Mt.; San Francisco Bay Region, San Bruno Mt. 396 Comment
  JROH276  Lomatium macrocarpum John H. Thomas 1973-4-20 16583 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH280  Lomatium macrocarpum John H. Thomas 1975-5-26 17909 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1368794  Lomatium macrocarpum David H. French 1968-4-19 2857 San Mateo w. Redwood City (s.e. of Upper Crystal Springs Reservoir, s.e. side Edgewood Rd., ca. 100 yds. n.e. of intersection w/ Canada Rd.) Comment
  JROH279  Lomatium utriculatum John H. Thomas 1972-5-5 16081 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC240588  Lonicera hispidula W. R. Dudley 1896-9-15 s.n. San Mateo Santa Cruz Mountain Peninsula. El Corte Madera Creek, Santa Cruz Mts. Comment
  CAS-BOT-BC240601  Lonicera hispidula Daniel Cohen 1953-6-5 110 San Mateo Los Trancos Woods Comment
  JROH1651  Lonicera hispidula John H. Thomas 1964-11-29 10546 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1660  Lonicera hispidula John Hunter Thomas 1981-5-25 20639 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR51650  Lonicera involucrata R. Ascanio 1988-4-17 s.n. San Mateo E on Gazo Creek Road off Hwy 1, c. 2 mi. north of Ano Nuevo State Reserve 85 Comment
  CAS-BOT-BC241542  Lonicera involucrata var. ledebourii Walter Knight; Irja Knight 1965-4-4 s.n. San Mateo San Bruno Mountains. Bitter Cherry Ravine about 60% of the way to the summit Comment
  CAS-BOT-BC241543  Lonicera involucrata var. ledebourii W. R. Dudley June s.n. San Mateo San Francisquito Cr., Palo Alto Ranch Comment
  CAS-BOT-BC243973  Lonicera involucrata var. ledebourii W. R. Dudley 1894-3-26 s.n. San Mateo Near Lobitos Creek, Santa Cruz Mountain Peninsula Comment
  POM222813  Lonicera involucrata var. ledebourii S. S. Berry 1909-3-13 s.n. San Mateo Bridge over San Francisquito Creek, near Adelanto Villa. 46 Comment
  RSA788374  Lonicera involucrata var. ledebourii Peter Rubtzoff 1980-12-11 9635 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon area. Comment
  CAS-BOT-BC243972  Lonicera involucrata var. ledebourii George Oberlander 1950-4-2 599 San Mateo South boundary, San Franciso Watershed Reserve Comment
  JROH2046  Lotus corniculatus John Hunter Thomas 1982-5-18 20937 San Mateo Jasper Ridge Biological Preserve, Stanford University; old racing oval Comment
  POM265133  Lotus formosissimus I. L. Wiggins 1929-5-10 3674 San Mateo Roadside between Pigeon Point and Pescadero. Comment
  JEPS55888  Lotus scoparius Dr. L. M. Newlon 1921-7-30 248 San Mateo Salada Comment
  SEINET5557839  Lotus scoparius H. S. Gentry 1931-1 90 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  RSA120411  Lotus scoparius var. scoparius W. R. Dudley 1893-07 s.n. San Mateo Near Searsville Lake. Comment
  RSA120448  Lotus stipularis W. R. Dudley 1895-6-7 s.n. San Mateo Top of ridge between Butano and Pescadero. Comment
  POM18648  Lotus wrangelianus C. F. Baker 1902-5-1 776 San Mateo Crystal Springs Lake. Comment
  RSA159410  Lotus wrangelianus John H. Thomas 1961-5-14 9384 San Mateo Just north of dam on San Mateo Creek. 122 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
  POM10965  Lupinus affinis C. F. Baker 1902-04 1928 San Mateo Crystal Springs Lake. Comment
  UC201919  Lupinus affinis A. D. E. Elmer April, 1903 5021 San Mateo Portola Comment
  JEPS64922  Lupinus albifrons W. L. Jepson 1921-4-3 9108 San Mateo Colma Canyon near Colma; Colma Canyon Comment
  UC82049  Lupinus albifrons C. F. Baker 1902-3 341 San Mateo Crystal Springs Lake Comment
  SEINET10488379  Lupinus albifrons Charles Piper Smith 1948-4-23 Smith 48150 San Mateo Canada road 4 miles n of woodside Comment
  CAS-BOT-BC195796  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-21 48467 San Mateo Highway 5 - C.S. Dam-Bridge, 0.5 miles south Comment
  CAS-BOT-BC196109  Lupinus albifrons var. collinus Javier Penalosa 1963-3-30 2725 San Mateo North of Randolph Drive at Hillside Blvd. in SSF 91 Comment
  CAS-BOT-BC196125  Lupinus albifrons var. collinus Roxana S. Ferris 1921-4-7 2131 San Mateo San Bruno Mt. 213 Comment
  JEPS64928  Lupinus albifrons var. collinus Ivar Tidestrom 1894-3-22 San Mateo Comment
  JEPS85208  Lupinus arboreus Roy E. Buck, James A. West 1985-4-29 523 San Mateo along n side of Whitehouse Canyon Rd. just w of minor gulch, e of first curve in from CA Hwy 1 ca 0.7 air km ne Whitehouse Canyon Rd. - CA 1 jct (2.0 air km e of Franklin Point, Cascade Ranch); e of Franklin Point, Cascade Ranch 60 Comment
  RSA0065263  Lupinus arboreus Daisie Huang 2006-8-7 06080702 San Mateo South of Half Moon Bay, Hwy 1. 46 Comment
  SEINET12154360  Lupinus arboreus Unknown 1933-1 10377 San Mateo Baden Station S San Francisco Comment
  JROH5635  Lupinus bicolor John Rawlings 2014-5-28 1247 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Dennis Martin Site Marker near path to San Francisquito Creek crossing 77 Comment
  UC2049881  Lupinus bicolor H. W. Johansen 1955-4-9 29 San Mateo Jones Gulch, 5 miles S of La Honda. Comment
  UC764739  Lupinus bicolor R. F. Hoover 1939-4-21 4054 San Mateo 2 mi s Colma; s of Colma Comment
  UC81971  Lupinus bicolor C. F. Baker 1903-4-8 1921 San Mateo San Andreas Lake Comment
  POM10690  Lupinus densiflorus var. palustris C. F. Baker 1902-5-1 850 San Mateo Crystal Springs Lake. Comment
  RSA414793  Lupinus formosus var. formosus E. A. Purer 1933-8-13 5426 San Mateo Near Belmont Comment
  SEINET11071961 Image available Lupinus latifolius A. A. Heller 1907-5-23 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  RSA134038  Lupinus latifolius subsp. latifolius W. R. Dudley 1894-4-21 s.n. San Mateo San Mateo Ravine. Comment
  RSA15310  Lupinus latifolius subsp. latifolius Carl B. Wolf 1927-4-3 280 San Mateo 1 1/2 miles above east base of La Honda grade, Santa Cruz Mountains. Comment
  JEPS23917  Lupinus latifolius var. latifolius W. R. Dudley 1895-6-7 4232 San Mateo top of ridge between Pescadero and Butano Creek; between Pescadero and Butano Creek Comment
Read comments
Feb 28 2011
  JROH2120  Lupinus latifolius var. latifolius John H. Thomas 1964-4-19 10331 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Searsville end of ridge Comment
  UC75237  Lupinus latifolius var. latifolius C. F. Baker Apr 1903 1929 San Mateo Crystal Springs Lake Comment
  UC201917  Lupinus microcarpus var. densiflorus A. D. E. Elmer June, 1903 4413 San Mateo Lake San Andreas Comment
  UC311393  Lupinus microcarpus var. densiflorus A. D. E. Elmer May, 1903 4847 San Mateo Lake San Andreas Comment
  UC865131  Lupinus microcarpus var. densiflorus Lewis S. Rose 1939-5-13 39112 San Mateo w Burlingame 60 Comment
  HSC103498  Lupinus microcarpus var. microcarpus Thomas W. Nelson, Jane Nelson 1981-4-28 6460 San Mateo Along roadside, ~100 yds, E of junction of State Route 280 & 92. Comment
  JROH2132  Lupinus nanus John Hunter Thomas 1977-6-16 18762 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5565  Lupinus nanus John Rawlings 2013-4-19 1147 San Mateo Jasper Ridge Biological Preserve, Stanford University; south edge of Rd B along the northeast base of the powerline hillock 91 Comment
  POM77724  Lupinus nanus subsp. latifolius C. P. Smith 1922-4-22 3494 San Mateo Belmont, highway south. Comment
  SEINET11072122 Image available Lupinus nanus subsp. latifolius A. A. Heller 1907-4-20 8452 San Mateo Near Lake Merced Comment
  RSA413810  Lupinus nanus subsp. nanus D. D. Keck 1932-5-11 1769 San Mateo Two miles north of San Gregorio. 15 Comment
  POM296673  Lupinus polycarpus L. S. Rose 1942-3-30 42006 San Mateo Mills Field 2 Comment
  JEPS81168  Lupinus polyphyllus Edward Lee with H. L. Mason 1935-6-16 1529 San Mateo between Ano Nuevo and Franklin Point; between Ano Nuevo and Franklin Point Comment
  UCD23307  Lupinus polyphyllus Alan T. Whittemore 1976-5-29 114 San Mateo San Francisco Fish and Game Refuge. East side of Lower Crystal Springs Lake, on Sawyer's Camp Road. 94 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
  POM11052  Lupinus succulentus A. D. E. Elmer 1903-06 4681 San Mateo San Pedro. Comment
  SBBG39517  Lupinus succulentus L. S. Rose 1970-5-9 70039 San Mateo Chateau Drive near Skyline, Hillsborough 91 Comment
  UC187796 Image available Lupinus succulentus var. layneae Katharine Brandegee 1918-6-23 San Mateo Farallon City Comment
  UC82051  Lupinus variicolor Dr. E. B. Copeland 1903-6-3 3302 San Mateo Montara Point Comment
  SEINET10489105  Lupinus variicolor Elizabeth M. McClintock; Baki Kasapligil; Walter Knight; Irja Knight, Baki Kasapligil; Walter Knight; Irja Knight 1967-7-18 McClintock s.n. San Mateo San bruno mtn. In old quarry in colma canyon. Comment
  SEINET10936779  Lupinus variicolor Smith 1948-4-23 Smith 48138 San Mateo Hwy 1, montara, government property. Comment
  JROH4529  Luzula comosa var. comosa John Hunter Thomas 1982-3-12 20805 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC441265  Luzula macrantha Margaret A. Barry 1937-4-21 7 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC441371  Luzula subsessilis M. S. Jussel 1931-4-18 s.n. San Mateo Colma Canyon Comment
  UCR279850  Luzula subsessilis Peter Rubtzoff 1976-3-28 8450 San Mateo San Francisco Bay Region, San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction; East Fork Colma Creek Canyon 220 Comment
  UC1099770  Luzula subsessilis Herbert L. Mason 1927-4-23 3686 San Mateo along road from La Honda to Pescadero Creek Comment
  JROH4166  Lycopersicon esculentum Toni Corelli 2002-10-11 249 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road H, below road inside JRBP that is parallel to Sand Hill Road 121 Comment
  JROH5907  Lysimachia arvensis L. Nordby 1982-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the Searsville Lab on the west side of the lake Comment
  JROH2952  Lythrum hyssopifolia John Hunter Thomas 1981-7-12 20688 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat dock Comment
  UC1191550  Lythrum hyssopifolia Malcolm A. Nobs, S. Galen Smith 1949-8-26 1578 San Mateo about 1 mi s of Half Moon Bay Comment
  JEPS79508 Image available Lythrum salicaria Edward Lee 1978-8-24 San Mateo Princeton Marsh Comment
  JROH2955  Lythrum tribracteatum John Hunter Thomas 1981-7-12 20708 San Mateo Jasper Ridge Biological Preserve, Stanford University; on old beach Comment
  CAS-BOT-BC343901  Madia elegans George Oberlander 1949-9-25 369 San Mateo San Francisco Watershed Reserve. North of San Andreas L. Comment
  CAS-BOT-BC344495  Madia exigua James I. McMurphy 1907-5-19 s.n. San Mateo Coal Mine Ridge Comment
  JROH1043  Madia exigua John H. Thomas 1967-5-31 12925 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1052  Madia exigua John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1055  Madia exigua John Hunter Thomas 1981-5-25 20625 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC343335  Madia gracilis David D. Keck 1932-6-1 1788 San Mateo Above Woodside on the La Honda road, east slope of the Santa Cruz Mtns. 305 Comment
  JROH1072  Madia gracilis D. E. Breedlove 1971-5-31 19342 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH1083  Madia gracilis John Hunter Thomas 1983-7-7 22820 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA3891  Madia gracilis I. L. Wiggins 1929-7-4 3780 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  RSA176528  Madia gracilis John H. Thomas 1963-6-23 10163 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto; near Westridge end of ridge Comment
Read comments
May 25 2015
  CAS-BOT-BC345110  Madia sativa J. H. Thomas 1963-7-19 10179 San Mateo Ano Nuevo Point Comment
  UC483494  Madia sativa Ira L. Wiggins 1929-7-4 3796 San Mateo sea bluffs at Pescadero Beach Comment
  CAS-BOT-BC345128  Madia sativa Lewis S. Rose 1966-8-6 66078 San Mateo San Bruno Mountain. Head of Colma Canyon 213 Comment
  CAS-BOT-BC345131  Madia sativa David D. Keck 1941-7-1 1869 San Mateo Base of Montara Mountain, near Montara 91 Comment
  RSA18378  Maianthemum racemosum subsp. amplexicaule Carl B. Wolf 1927-7-1 530 San Mateo Above Emerald Lake, back of Redwood City Comment
  CAS-BOT-BC511479  Maianthemum racemosum subsp. amplexicaule Josephine Randall 1908-3-22 s.n. San Mateo Corte de Madera Canyon near Alpine Road Comment
  CAS-BOT-BC512099  Maianthemum racemosum subsp. amplexicaule Le Roy Abrams 1898-4-1 314 San Mateo Stanford University Comment
  CAS-BOT-BC512111  Maianthemum racemosum subsp. amplexicaule John H. Thomas 1967-5-7 12835 San Mateo Near intersection of Bean Hollow Rd. and Pescadero Rd., about 1/2 mile westward from Pescadero. 91 Comment
  SD39134  Maianthemum racemosum subsp. amplexicaule McCallum 1933-5-22 2145 San Mateo Damp woods in Los Trancus woods. Comment
  JROH4711  Maianthemum stellatum John Hunter Thomas 1978-4-28 19160 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-BC203907  Malacothamnus aboriginum George Oberlander 1949-7-10 258 San Mateo San Francisco Watershed Reserve. South end of Sawyer Ridge 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
  SEINET7247931  Malva arborea Bob Schmalzel 1974-1 s.n. San Mateo Growing along highway 1 200 yards from the Pacific Ocean 9 miles south of Half Moon Bay. 9 Comment
  RSA226763  Malva nicaeensis I. L. Wiggins 1969-5-25 21025 San Mateo On vacant lot at corner of Woodland Avenue and Pope Street, Menlo Park. Comment
  JROH1899  Marah fabacea Daniel Cohen 1953-4-11 25 San Mateo Jasper Ridge Biological Preserve, Stanford University; near west end of Searsville Lake Comment
  POM59385  Marah oregana Stewart H. Burnham 1894-4-21 s.n. San Mateo San Mateo. Comment
  JROH618  Matricaria discoidea John H. Thomas 1975-4-19 17793 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC422678  Meconella californica A. D. E. Elmer 1903-4-1 4499 San Mateo San Mateo toward Crystal Springs Comment
  JROH2161  Medicago polymorpha John H. Thomas 1963-6-23 10174 & 10175 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of ridge Comment
  JROH2170  Medicago polymorpha John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD164209  Medicago polymorpha Peter Rubtzoff 1978-7-8 9236 San Mateo San Bruno Mountains. 'Saddle' area on N side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  CAS-BOT-BC269471  Melica californica Javier Penalosa 1963-3-30 2754 San Mateo San Bruno Mountain. Crest of ridge SW of Brisbane, 750 ft. NW of power lines 304 Comment
  POM319880  Melica californica Barbara Shervanick 1973-4-1 795 San Mateo San Bruno Mt. first summit on Crocker Road; Mt. Range: San Bruno Mountains; Drainage Area: San Francisco Bay. Comment
  JROH5310  Melica imperfecta W. Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 11 near intersection with Trail 9. Comment
  CAS-BOT-BC264186  Melica subulata L. R. Abrams 1915-6-14 5560 San Mateo Kings Mountain Road, first bridge Comment
  CAS-BOT-BC264242  Melica torreyana Dean Wm. Taylor 1988-4-8 9512 San Mateo Northern slope of southeast ridge of the mountain near the ridgecrest (San Francisco South 7 1/2 U.S.G.S quadrangle, right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain, San Bruno Mountain 237 Comment
  CAS-BOT-BC264243  Melica torreyana Elizabeth McClintock 1965-3-14 s.n. San Mateo Power Line Ridge, San Bruno Mountain Comment
  CAS-BOT-BC264247  Melica torreyana Peter H. Raven 1950-6-3 2245 San Mateo Around San Andreas Lake Comment
  CAS-BOT-BC264255  Melica torreyana George Oberlander 1949-5-21 185 San Mateo South boundary, San Francisco Watershed Reserve Comment
  RSA101010  Melilotus albus G. Oberlander 1949-10-8 404 San Mateo Lower Crystal Springs Lake, San Francisco Watershed Reserve. Comment
  JROH2184  Melilotus indicus John H. Thomas 1970-7-5 15674 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2188  Melilotus indicus John H. Thomas 1974-5-3 17238 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2191  Melilotus indicus John Hunter Thomas 1980-5-8 19938 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC007763  Melilotus indicus Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH2811  Mentha pulegium John H. Thomas 1978-9-24 19338 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Searsville Lake Comment
  JROH2827  Mentha suaveolens Ann Lambrecht 2007-8-15 30 San Mateo Jasper Ridge Biological Preserve, Stanford University; Corte Madera Creek Comment
  CAS-BOT-BC438142  Mesembryanthemum nodiflorum Malcom A. Nobs 1948-12-20 721 San Mateo Redwood City yacht harbor Comment
  UC1191376  Mesembryanthemum nodiflorum Malcolm A. Nobs, S. Galen Smith 1949-8-27 1623 San Mateo East of Redwood City. Comment
  CAS-BOT-BC348578  Micropus californicus var. californicus Eric Walther 1920-5-9 s.n. San Mateo Woodside Comment
  JROH1117  Micropus californicus var. californicus Hester Bavis 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1121  Micropus californicus var. californicus John H. Thomas 1963-5-12 10085 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC77531  Microseris bigelovii K. L. Chambers 1984-6-14 5141 San Mateo Pescadero Beach State Park, just S of mouth of Pescadero Creek, Hwy. 1 Comment
  CAS-BOT-BC348722  Microseris bigelovii John H. Thomas 1963-5-20 10147 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC348723  Microseris bigelovii W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. West of Baden Comment
  UC218911  Microseris bigelovii A. Eastwood San Mateo San Bruno Range Comment
  CAS-BOT-BC349029  Microseris douglasii subsp. douglasii Ned Cahill 1974-4-19 150 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH1147  Microseris douglasii subsp. douglasii John Hunter Thomas 1986-5-6 24014 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM52854  Microseris douglasii subsp. douglasii A. D. E. Elmer 1903-05 4721 San Mateo Crystal Springs Lake 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
  CAS-BOT-BC349143  Microseris douglasii subsp. tenella Philip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Buckeye Canyon Comment
  RSA184976  Microseris douglasii subsp. tenella L. S. Rose 1966-5-2 66037 -B San Mateo Emerald Lake, west of Redwood City. 91 Comment
  UC92108  Microseris douglasii subsp. tenella T. S. Brandegee, E. L. Greene 1886-5-9 San Mateo Belmont Comment
  CAS-BOT-BC349142  Microseris douglasii subsp. tenella Kenton L. Chambers 1953-3-28 431 San Mateo Bayshore Hwy. 1/2 mi. s. of junction with Harbor Blvd., Redwood City Comment
  CAS-BOT-BC349147  Microseris douglasii subsp. tenella L. R. Abrams 1918-4-30 7212 San Mateo San Bruno Hills, Bay Shore [Bayshore] road Comment
  UC885697  Mimulus aurantiacus var. aurantiacus E. W. Rust 1907-4-27 127 San Mateo vicinity Stanford University; King's Mountain 213 Comment
  JROH4081  Mimulus cardinalis John Hunter Thomas 1992-5-26 25358 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  JROH5857  Mimulus douglasii Ruth Porter 1989-3-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. In Vestal's exclosure Comment
  RSA53515  Mimulus glaucescens Edward L. Greene s.n. San Mateo Crystal Springs Lake. Frequent along banks, specially shady places. Comment
Read comments
Jul 13 2018
  UCD23299  Mimulus grandis Alan T. Whittemore 1976-5-29 s.n. 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
  POM5176  Mimulus guttatus A. D. E. Elmer 1903-04 4857 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC388836  Minuartia douglasii H. A. Dutton 1900-3-11 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  POM151593  Minuartia douglasii A. D. E. Elmer 1903-04 5042 San Mateo San Bruno Hills Comment
  CAS-BOT-BC388829  Minuartia douglasii W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Crystal Springs Lake Comment
  JROH1707  Minuartia douglasii Ruth Porter 1991-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Area C Comment
  CDA3325  Mirabilis jalapa W. Davis 1962-7-23 San Mateo San Bruno. 0 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-BC214082  Monardella villosa Cherie Wetzel 1969-6-20 887 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC214083  Monardella villosa Josephine D. Randall 1907-6-29 177 San Mateo King's Mt. Road, Santa Cruz Peninsula Comment
  CAS-BOT-BC214087  Monardella villosa Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  CAS-BOT-BC220662  Monardella villosa Margaret A. Barry 1937-7-17 210 San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC220663  Monardella villosa Ned Cahill 1974-4-30 236 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  RSA18453  Monardella villosa Carl B. Wolf 1927-6-29 554 San Mateo South of Pebble Beach near Pescadero. Comment
  JEPS127892  Monardella villosa subsp. villosa Adam C. Schneider with C. Matt Guilliams and Will Freyman 2013-6-24 306 San Mateo Crystal Springs Reservoir Comment
  JROH2836  Monardella villosa subsp. villosa John H. Thomas 1971-5-30 15958 San Mateo Jasper Ridge Biological Preserve, Stanford University; along trail below dam Comment
  JROH2841  Monardella villosa subsp. villosa Raymond R. White 1974-5-30 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC327788  Monolopia gracilens Eric Walther 1920-5-9 s.n. San Mateo Woodside Comment
  CAS-BOT-BC444949  Montia fontana K. Hoppaugh 1929-4-29 373 San Mateo 10 mi. so. of San Francisco, Skyline Boulevard Comment
  CAS-BOT-BC445193  Montia parvifolia A. D. E. Elmer 1903-5-1 4577 San Mateo Iverson's Place Comment
  CAS-BOT-BC445197  Montia parvifolia W. R. Dudley 1909-4-27 s.n. San Mateo Santa Cruz Mountain Peninsula. Pulpit Rock, San Mateo Canon [Canyon] Comment
  POM164023  Montia parvifolia A. D. E. Elmer 1903-05 4577 San Mateo Iversons Place Comment
  CAS-BOT-BC508581  Muilla maritima Cynthia Steele 1948-4-18 34 San Mateo Redwood City Comment
  CDA5599  Myosotis discolor Wm. Davis 1959-5-15 2398 San Mateo Woodlawn Cemetery, Colma. 0 Comment
  UCR280166  Myosotis latifolia Peter Rubtzoff 1977-4-16 8949 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
  JROH1398  Myosotis latifolia John Hunter Thomas 1983-4-5 21326 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  SEINET218191  Myosotis sylvatica Cynthia Taylor 1971-7-11 208 San Mateo Skyline Boulevard near La Honda Road., Santa Cruz Mountains. 445 Comment
  CAS-BOT-BC101769  Myrica californica W. R. Dudley 1894-9-22 s.n. San Mateo Preston's Ravine, Portola Valley Comment
  CAS-BOT-BC101775  Myrica californica Carl B. Wolf 1929-5-10 3709 San Mateo near Lake Lucerne 1 mi. no. of Pigeon Pt. 30 Comment
  CAS-BOT-BC438777  Myrica californica Phyllis Bentley 1988-3-24 193 San Mateo Ano Nuevo State Park Comment
  RSA132434  Myriophyllum spicatum John H. Thomas 1955-12-6 5513 San Mateo At the southern end of San Andreas Lake. Comment
  JROH5836  Narcissus pseudonarcissus Ann Lambrecht 2007-3-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Planted in Old Garden near Douglas Iris site off Trail 20 toward San Francisquito Creek Comment
  CAS-BOT-BC260231  Nassella pulchra Lewis S. Rose 1956-5-7 56071 San Mateo Skyline Boulevard W of San Mateo 182 Comment
  UCD37956  Nassella pulchra Beecher Crampton 1962-6-11 6486 San Mateo San Mateo County, 5 miles west of Belmont, at junction of Ralston Avenue and and Skyline Boulevard, at foot of western slope of Pulgas Ridge, along eastern side of lower Crystal Springs Reservoir. Comment
  CAS-BOT-BC60478  Nasturtium officinale Walter Knight; Irja Knight 1963-8-6 s.n. San Mateo San Bruno Mountain. Crocker Avenue. Comment
  UCD77883  Nasturtium officinale Robert E. Preston 2001-5-30 1535 San Mateo Ca. 9 mi nnw of Boulder Creek. 304 Comment
  JROH3197  Navarretia heterodoxa W. R. Dudley 1895-6-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Point of Rocks near Searsville Lake Comment
  JROH3212  Navarretia squarrosa John Hunter Thomas 1977-6-16 18778 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH3215  Navarretia squarrosa John Hunter Thomas 1982-7-3 21063 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS48591  Navarretia squarrosa James G. Daly 1934-1 382 San Mateo near road to La Honda (San Gregorio watershed, on ridge of Santa Cruz Mts., sw San Mateo County); Santa Cruz Mts., San Gregorio Comment
  SD38536  Nemophila menziesii Janet Turner 1933-4-19 3728 San Mateo Above Emerald Lake Comment
  UC606949  Nemophila parviflora L. Constance 1938-5-16 2241 San Mateo 5 mi sw San Mateo (near Crystal Springs Lake); sw of San Mateo, near Crystal Springs Lake 121 Comment
  CAS-BOT-BC219476  Nemophila parviflora Mrs. E. C. Sutliffe 1933-5-11 s.n. San Mateo Memorial Park, near La Honda Comment
  JROH2746  Nemophila parviflora var. parviflora John Rawlings 2007-4-1 1062 San Mateo Jasper Ridge Biological Preserve, Stanford University. Rock outcrop in dry creek bed forming NW border of the Herb Dengler Transect. 73 Comment
  CAS-BOT-BC140449  Oemleria cerasiformis W. R. Dudley 1893-4-1 s.n. San Mateo Bear Gulch Road, Santa Cruz Mountains Comment
  JROH292  Oenanthe sarmentosa Carol Zabel 1989-8-1 18 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Middle Lake Comment
  RSA136184  Ornithopus sativus John H. Thomas 1956-7-2 6039 San Mateo Along Graham Hill Road, 1.9 miles from Felton RR Station. 183 Comment
  SJSU14729  Ornithostaphylos oppositifolia C. W. Sharsmith 1991-12-14 9231 San Mateo Buena Vista Nursery, Woodside Comment
  JEPS19482  Orobanche californica subsp. californica Herbert L. Mason 1927-7-28 3983 San Mateo Pigeon Point. Comment
  JEPS121488  Orobanche fasciculata Adam C. Schneider with C. Matt Guilliams 2013-5-17 189 San Mateo Crystal Springs Reservoir Comment
  CAS-BOT-BC500166  Orobanche fasciculata David D. Keck 1932-6-18 1982 San Mateo Skyline Blvd., at Langley Hill (SW of Stanford Uniersity) 600 Comment
  POM319954  Orthocarpus densiflorus Barbara Shervanick 1973-4-1 800 San Mateo San Bruno Mt. first summit on Crocker Road; Mt. Range: San Bruno Mountains; Drainage Area: San Francisco Bay. Comment
  RSA195661  Orthocarpus erianthus var. erianthus John H. Thomas 1967-5-2 12823 San Mateo Along Canada Road, about 1.6 miles SE of the Edgewood Rd. intersection. Woodside. Comment
  CAS-BOT-BC166766  Orthocarpus erianthus var. roseus Peter Rubtzoff 1979-4-7 9276 San Mateo San Bruno Mountains. South of the junction of Whittier Street with Frankfort Street, between it and Crocker Avenue. Comment
  RSA155567  Orthocarpus erianthus var. roseus L. S. Rose 1961-4-5 61034 San Mateo San Bruno Mountains. 366 Comment
  POM15369  Orthocarpus floribundus C. F. Baker 1903-4-8 1926 San Mateo San Andreas Lake Comment
  RSA407989  Orthocarpus floribundus Francis W. Pennell, D. D. Keck 1940-5-15 25426 San Mateo Route 101, 4 miles west of Burlingame. 152 Comment
  SEINET12270154  Orthocarpus floribundus M. T. Doutt 1931-1 417 San Mateo Skyline Blvd, W of Hillbrae Comment
  POM226857  Orthocarpus pusillus L. R. Abrams 1935-4-2 5079 San Mateo Menlo Heights. Comment
  CHSC56513  Osmorhiza chilensis Steven Triano 1988-5-24 170 San Mateo Along se side of Old La Honda Road ca 0.5 air miles e of SkyLonda. 405 Comment
  JROH5644  Oxalis corniculata John Rawlings 2014-6-2 1256 San Mateo Jasper Ridge Biological Preserve, Stanford University. Caretaker's Residence 106 Comment
  POM139481  Oxalis oregana C. F. Baker 1902-3-18 325 San Mateo King's Mountain Comment
  UC571122  Oxalis oregana Lucile Roush March 1928 San Mateo Butano creek Santa Cruz Mtns Comment
Read comments
Sep 6 2011
  UCD18546  Oxalis oregana Roman Gankin 1950-7-9 15 San Mateo west side of the Peninsula Coast Range, 4 miles from La Honda, off San Mateo Memorial Park Rd, redwood belt. 30 Comment
  UC463306  Oxalis pes-caprae L. R. Abrams and I. L. Wiggins 1930-11-13 176 San Mateo near Colma (fields along Skyline Blvd.) Comment
  POM177457  Oxalis pes-caprae L. R. Abrams, I. L. Wiggins 1930-11-13 176 San Mateo Along Skyline Blvd. near Colma Comment
  UCSB11440  Oxalis pes-caprae Olson, Jim 1962-4-17 San Mateo 1 mile east of Halfmoon Bay on Halfmoon Bay to San Mateo Road 15 Comment
  JROH5340  Panicum miliaceum subsp. miliaceum Ann Lambrecht 2000-9-11 1 San Mateo Jasper Ridge Biological Preserve, Stanford University. Corte Madera Creek. Comment
  UCR242655  Parietaria judaica A. C. Sanders 2012-11-11 40516 San Mateo SF Bay Area, Daly City near Colma, between Junipero Serra Blvd. and San Pedro Rd. on Washington St. 56 Comment
  CAS-BOT-BC413448  Parietaria judaica Elizabeth McClintock; Paul Reeberg 1989-5-2 s.n. San Mateo San Bruno Mountains. Along Harold Road 91 Comment
  CDA15877  Parietaria judaica J. Xerogeanes 2000-1-4 PDR 1242905 San Mateo North Coast; Chorry Rd., San Bruno. 0 Comment
  UCD88918  Paspalum distichum David Hanson 1975-11-24 s.n. San Mateo Half Moon Bay. Comment
  CDA5092  Passiflora caerulea T. C. Fuller, P. Arnand Jr. 1959-6-14 2615 San Mateo Menlo Park. 0 Comment
  JROH1400  Pectocarya pusilla J. I. McMurphy 1911-5-11 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC266632  Pedicularis Ned Cahill 1975-2-21 402 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles from Redwood City Comment
  JEPS10360  Pedicularis densiflora W. L. Jepson 1922-3-19 9544 San Mateo Buri-Buri Ridge Comment
  JROH4098  Pedicularis densiflora Robert Robertson 1954-4-23 102 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JROH4112  Pedicularis densiflora John H. Thomas 1973-4-14 16571 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4115  Pedicularis densiflora John Hunter Thomas 1978-4-20 19094 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA169354  Pedicularis densiflora L. S. Rose 1964-3-23 64013 San Mateo Emerald Lake, W of Redwood City. 122 Comment
  UCR136713  Pedicularis densiflora L. S. Rose 1948-3-31 48031 San Mateo San Francisco Bay Region, Millbrae Highlands 91 Comment
  SEINET12270442  Pedicularis densiflora J. H. Thomas 1959-1 7663 San Mateo Jasper Ridge, about 5 mi SW of Palo Alto 152 Comment
  CAS-BOT-BC266668  Pedicularis dudleyi W. R. Dudley 1903-6-6 s.n. San Mateo Santa Cruz Peninsula. Near Iverson's, Pescadero Creek Comment
  JEPS26849 Image available Pedicularis dudleyi Rimo Bacigalupi with J. H. Thomas and L. Heckard 1961-5-23 7712 San Mateo 1/3 mi n of its confulence with Pescadero Creek (e side of Peters Creek); Peters Creek 134 Comment
  CAS-BOT-BC207023  Pelargonium vitifolium J. H. Thomas 1949-6-4 589 San Mateo Along coast, 1.4 miles S of road leading to Pescadero. Comment
  CAS-BOT-BC207027  Pelargonium vitifolium Rimo Bacigalupi 1922-3-29 s.n. San Mateo Roadside between Pigeon Pt. and Arroyo de los Frijoles Comment
  CAS-BOT-BC69252  Pellaea andromedifolia Margaret Barry 1937-5-1 39 San Mateo Coal Mine Ridge Comment
  JROH102  Pellaea andromedifolia John Hunter Thomas 1981-4-5 20268 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  CAS-BOT-BC389690  Pellaea andromedifolia 1980-3-15 s.n. San Mateo Crystal Springs Rd. Comment
  JROH105  Pellaea mucronata var. mucronata L. R. Abrams 1916-3-27 5588 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Ridge Comment
  CAS-BOT-BC265731  Pennisetum villosum John H. Thomas 1969-6-6 15517 San Mateo Menlo Park, near El Camino and Cambridge Comment
  CAS-BOT-BC330497  Pentachaeta bellidiflora Ned Cahill 1974-4-19 154 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  POM259787  Perideridia gairdneri subsp. gairdneri I. L. Wiggins, Roxana Ferris 1939-8-2 9295 San Mateo Ano Nuevo Point Comment
  JROH3242  Persicaria amphibia Le Roy Abrams 1900-10-1 1002 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Comment
  JROH3245  Persicaria amphibia John H. Thomas 1964-10-2 10510 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake near bridge. Comment
  CAS-BOT-BC413611  Persicaria amphibia Roxana S. Ferris 1920-9-3 2048 San Mateo Santa Cruz Mountain Peninsula. 2nd Mud Lake, Coal Mine Ridge Comment
  CAS-BOT-BC418847  Persicaria hydropiperoides Ira L. Wiggins 1985-9-28 22299 San Mateo Bed of San Francisquito Creek, N side of creek bed, just above Pop [Pope] Street bridge, Menlo Park Comment
  JROH3282  Persicaria punctata Roxana S. Ferris 1924-10-6 4093 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake in Portola Highway. Comment
  JROH4173  Petunia parviflora W. R. Dudley 1909-10-31 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  RSA342247  Phacelia californica Robert F. Thorne, P. C. Everett 1963-6-9 32213 San Mateo On top of San Bruno Mountain, near TV tower. 335 Comment
  UC1523540  Phacelia californica Robert F. Thorne and P. Everett 1963-6-9 32213 San Mateo top of mt. near TV tower; San Bruno Mountain 335 Comment
  UC24324  Phacelia ciliata var. ciliata E. L. Greene May 1886 San Mateo Belmont Comment
  RSA149147  Phacelia distans John H. Thomas 1961-5-13 9334 San Mateo Franklin Point. Comment
  UCD120425  Phacelia distans Lewis S. Rose 1963-5-23 63060 San Mateo Thornton Beach Park. 30 Comment
  UC1084388  Phacelia divaricata G. Thomas Robbins 1937-4-11 96 San Mateo near Spring Valley Lakes (along road to Woodside) Comment
  RSA101024  Phacelia malvifolia G. Oberlander 1950-4-2 579 San Mateo Near San Andreas Lake, San Francisco Watershed Reserve Comment
  RSA51310  Phacelia malvifolia Peter H. Raven 1950-4-30 1984 San Mateo Along a stream in the Montara Mountains, ca. 0.5 miles north [?] of Montara City. 91 Comment
  SD38340  Phacelia ramosissima Edith A. Purer 1933-5-27 3651 San Mateo Spring Valley Lakes. Comment
  JROH5369  Phalaris aquatica John Hunter Thomas 1983-7-7 22825 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5378  Phalaris aquatica W. Lennihan 1990-6-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Whiskey Hill crossing causeway, upstream side. Comment
  UCR101609  Phalaris aquatica George K. Helmkamp, E. A. Helmkamp 1998-5-16 3743 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  JEPS101195  Phalaris californica Dean W. Taylor 1987-8-20 9313 San Mateo Cascade Ranch State Park, between Whitehorse Creek and Cascade Creek, at crest of north facing hil 188 Comment
  CAS-BOT-BC259008  Phalaris californica George Oberlander 1949-4-2 27 San Mateo San Francisco Watershed Reserve. North Cahill Comment
  SEINET10657416  Phalaris minor Robert V. Bradshaw 1922-4-30 Bradshaw 2675 San Mateo Sandhill road near Searsville Lake Comment
  SEINET9341363  Phyllospadix scouleri Unknown 1966-8-8 San Mateo Half Moon Bay Comment
  UC1974569  Phyllospadix torreyi Megan Williams 2002-11-21 San Mateo Pigeon Point Comment
  JROH3726  Physocarpus capitatus John H. Thomas 1977-4-19 18535 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek along low flow crossing Comment
  CAS-BOT-BC206937  Pickeringia montana var. montana Daniel Cohen 1953-5-9 86 San Mateo La Honda Road nera Skyline Drive Comment
  CAS-BOT-BC206940  Pickeringia montana var. montana George Oberlander 1950-2-1 412 San Mateo Southern Cahill - San Francisco Watershed Reserve Comment
  UCR253351  Picris echioides A. C. Sanders 2014-8-3 41232 San Mateo San Francisco Bay, South San Francisco, San Francisco Bay Trail in vicinity of S Airport Drive, Utah Ave., and Haskins Way, between Hwy 101 and San Francisco Bay 6 Comment
  IRVC7620  Pinus patula P. W. Rundel 1964-8-8 1441 San Mateo Menlo Park; North Lemon Avenue 18 Comment
  CAS-BOT-BC72843  Pinus radiata Walter Knight; Irja Knight 1964-9-30 s.n. San Mateo San Bruno Mountain, Cable Ravine Comment
  UC400305  Pinus radiata none San Mateo Pescadero Coast Comment
  CAS-BOT-BC137322  Piperia elegans John H. Thomas 1963-9-11 10267 San Mateo Field redacted by CAS, contact the data manager for more information 396 Comment
  JROH4768  Piperia michaelii Toni Corelli 2002-6-24 246 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
  JROH5802  Piperia transversa John Rawlings, Ann Lambrecht, Diane Renshaw 2016-7-12 1894 San Mateo Jasper Ridge Biological Preserve, Stanford University. Rd E through chaparral 135 Comment
  RSA18516  Piperia transversa Carl B. Wolf 1927-7-14 603 San Mateo Summit of Kings Mountain Rd. Comment
  CAS-BOT-BC228141  Plagiobothrys chorisianus Alice Eastwood 1915-6-13 4717 San Mateo Granada Comment
  POM64748  Plagiobothrys chorisianus C. F. Baker 1902-3-30 429 San Mateo Crystal Springs Lake Comment
  RSA128819  Plagiobothrys chorisianus L. R. Abrams 1909-4-27 s.n. San Mateo Santa Cruz Mountain peninsula, near Crystal Springs Lake Comment
Read comments
Dec 2 2007
  UC1063805  Plagiobothrys chorisianus H. S. Yates 1935-5-8 5216 San Mateo 2 mi s Pescadero; Santa Cruz Quad. 60 Comment
  UC24559  Plagiobothrys chorisianus Alice Eastwood Apr 1896 San Mateo Crystal Springs Comment
  UC78191  Plagiobothrys chorisianus Mrs. K. Brandegee 1890-5-22 San Mateo La Honda Comment
  CAS-BOT-BC228129  Plagiobothrys chorisianus Walter & Irja Knight 1965-4-26 s.n. San Mateo San Bruno Mountains. Devil's Arroyo Comment
  RSA128858  Plagiobothrys chorisianus L. R. Abrams 1904-4-10 s.n. San Mateo Santa Cruz Mountain peninsula, east end of Crystal Springs Lake Comment
  CAS-BOT-BC228159  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1896-4-4 s.n. San Mateo The Santa Cruz Mountain Peninsula. Near Crystal Springs Lake Comment
  SD39269  Plagiobothrys undulatus Edith A. Purer 1939-6-1 7928 B San Mateo Sandy soil, Ano Nuevo Point Comment
  UC625428  Plantago elongata L. R. Abrams and I. L. Wiggins 1939-6-3 422 San Mateo Ano Nuevo Point Comment
  RSA191937  Plantago erecta Robert F. Thorne, Percy C. Everett 1963-6-9 32220 San Mateo On Kamchatka Point near TV tower on San Bruno Mountain. 335 Comment
  RSA176597  Plantago hirtella var. galeottiana John H. Thomas 1964-6-19 10433 San Mateo Near Pigeon Pt. Lighthouse. Comment
  SEINET6205137  Plantago hookeriana var. californica L. S. Rose 1965-1 65056 San Mateo San Bruno Mtn, N end Comment
  CDA34345  Plantago major E. Finley 1990-10-16 s.n. San Mateo Shoreline Blvd, Mountain View. 0 Comment
  POM209656  Plantago maritima D. D. Keck 1934-7-7 2966 San Mateo Pigeon Point. Comment
  JEPS6470  Plantago subnuda Rimo Bacigalupi with J. R. Sweeney 1954-8-3 4736 San Mateo along upper slopes of the Edgeman road 121 Comment
  SEINET7097923  Platystemon californicus 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 mN, 4121109 mN. Comment
  CAS-BOT-BC92023  Platystemon californicus Ynez Whilton Winblad 1941-4-13 s.n. San Mateo 1 mile north of Crystal Springs Reservoir. Comment
  SD38887  Plectritis ciliosa Cumming, Mc Callum 1933-5-10 3716 San Mateo Near Spring Valley lakes Comment
  JROH5922  Plectritis congesta subsp. brachystemon H. J. Dengler 1964-3-29 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Grass island Comment
  NY278707  Plectritis nitida A. A. Heller 1907-5-28 8578 San Mateo Above Crystal Springs on the Half Moon Bay road 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
  CAS-BOT-BC260962  Pleuropogon californicus var. californicus J. I. McMurphy 1906-5-8 s.n. San Mateo Pond near head of Crystal Springs Lakes by road from Woodside to Byrnes Store Comment
  JROH5397  Poa annua John H. Thomas 1967-5-12 12873 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5399  Poa annua John H. Thomas 1975-4-3 17702 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
  CAS-BOT-BC254541  Poa douglasii J. H. Thomas 1963-5-20 10155 San Mateo At Ano Nuevo Point Comment
  RSA176552  Poa douglasii John H. Thomas 1963-5-20 10155 San Mateo at Ano Nuevo Point Comment
  RSA181329  Poa douglasii John H. Thomas 1965-5-1 10637 San Mateo at Pescadera Beach Comment
  JROH5412  Poa howellii John Rawlings 2013-4-16 1137 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2 extension south of the Dengler Transect after a short uphill section where the trail passes below a boulder. 84 Comment
  RSA135725  Poa secunda W. R. Dudley 1900-3-18 s.n. San Mateo San Andreas Lake Comment
  CAS-BOT-BC243114  Poa secunda subsp. secunda Ned Cahill 1974-5-30 308 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles W from Redwood City Comment
  JROH5423  Poa secunda subsp. secunda D. D. Davis 1903-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Rocky north slope, Searsville Ridge. Comment
  UC157041  Poa secunda subsp. secunda E. B. Copeland 1903-4-20 1920 San Mateo San Andreas Lake Comment
  RSA785877  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
  JEPS101813  Poa unilateralis Dean W. Taylor 2000-4-25 17440 San Mateo along dirt road 1 mi W of North Peak, Montara Mountain 411 Comment
  SJSU15435  Poa unilateralis subsp. unilateralis Toni Corelli 2010-5-14 673 San Mateo Southern end of Pillar Point Bluff, San Mateo County. 32 Comment
  CAS-BOT-BC110697  Poaceae J. H. Thomas 1962-4-6 9907 San Mateo Near Palo Alto airport. Comment
  JROH2859  Pogogyne serpylloides John H. Thomas 1976-4-30 18104 A San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC166941  Polygonum arenastrum Peter Rubtzoff 1975-10-11 8421 San Mateo Pond, northwest of and across old Guadalupe Road from Saddle area (which is located on north side of Guadalupe Canyon Parkway west of Radio Road junction). Comment
  CAS-BOT-BC109237  Polygonum paronychia Adele Lewis Grant 1917-5-6 944 San Mateo Pebble Beach near Pescadero. Comment
  CAS-BOT-BC109240  Polygonum paronychia Class Collection 1940-1-1 s.n. San Mateo Dunes, Ano Nuevo Point. Comment
  SD27835  Polygonum paronychia Carl B. Wolf 1929-5-25 3726 San Mateo Pebble Beach so. of Pescadero 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
  UC168662  Polygonum punctatum C. F. Baker 1903-10-20 1857 San Mateo Searsville Comment
  CAS-BOT-BC76950  Polypodium californicum Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountain Comment
  JROH79  Polypodium californicum John H. Thomas 1972-4-1 16045 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH80  Polypodium californicum Lawrence J. Winship 1974-11-16 18 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  RSA485493  Polypodium californicum Lyman Benson 1931-1-11 2574 San Mateo North end of Jasper Ridge, Santa Cruz Mountains, Lake Searsville drainage area 183 Comment
  UCD136938  Polypodium californicum Lewis S. Rose 1964-2-6 64001 San Mateo Kings Mountain. 609 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-BC237354  Polypogon monspeliensis C. F. Leithold 1894-8-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Devil's Canyon Comment
  JROH5438  Polypogon monspeliensis L. R. Abrams 1901-5-14 1639 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5442  Polypogon monspeliensis John H. Thomas 1965-12-19 11458 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along road near Searsville Lake. Comment
  JROH5445  Polypogon monspeliensis John H. Thomas 1974-10-29 17644 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  JROH5453  Polypogon monspeliensis John Hunter Thomas 1983-5-23 22240 San Mateo Jasper Ridge Biological Preserve, Stanford University. Roadside drainage near shack side & low-flow crossing. Comment
  JROH4816  Polypogon viridis John Hunter Thomas 1982-7-2 21050 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing. Comment
  RSA596241  Polypogon viridis Peter Rubtzoff, Walter Knight, I. Knight 1987-6-26 9793 San Mateo San Bruno Mountains; 'Saddle' area on north side of Guadalupe junction; near road in the area of the upper- most part of East Fork Colma Creek in the northwest corner of Fog Forest. Comment
  JROH48  Polystichum dudleyi Lawrence J. Winship 1974-11-16 11 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC72220  Polystichum dudleyi W. R. Dudley 1894-3-24 s.n. San Mateo Near bridge below La Honda Comment
  CAS-BOT-BC72226  Polystichum dudleyi Roxana S. Ferris 1920-4-24 1955 San Mateo North Fork of Peters Creek 457 Comment
  JROH55  Polystichum munitum Lawrence J. Winship 1974-11-16 19 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  SD43036  Polystichum munitum Delzie Demaree 1932-2-14 San Mateo Kings Mt. Comment
  CAS-BOT-BC384614  Polystichum munitum M. K. Wicksten 1991-7-8 s.n. San Mateo Huddart PRK Comment
  CAS-BOT-BC76650  Polystichum munitum W. R. Dudley 1896-2-16 s.n. San Mateo Santa Cruz Peninsula - Devil's Canyon, Black Mountain Comment
  CAS-BOT-BC453832  Potamogeton nodosus V. F. Hesse 1961-8-24 3020 San Mateo About 4 miles south of Pescadero 60 Comment
  CAS-BOT-BC453833  Potamogeton nodosus H. L. Mason 1921-5-28 s.n. San Mateo Lagoon back of New Years Pt. Comment
  UC279589  Potamogeton pectinatus W. A. Setchell, C. B. Setchell, H. E. Parks 1925-4-29 San Mateo Comment
  SD39944  Potentilla anserina Edith A. Purer 1933-7-27 5365 San Mateo High stabilized sand dunes, but damp, Pigeon Point Comment
  UC555624  Potentilla anserina subsp. pacifica Herbert L. Mason 1927-4-24 3701 San Mateo mouth of San Gregorio Creek Comment
  CAS-BOT-BC141935  Potentilla anserina subsp. pacifica Robert Robertson 1954-4-17 85 San Mateo By stream near coast north of Moss Beach (Montara) 4 Comment
  JROH3388  Primula hendersonii John Hunter Thomas 1982-3-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Rattlesnale Rocks Comment
  CAS-BOT-BC516354  Prosartes hookeri W. R. Dudley 1895-9-15 s.n. San Mateo Near Lumber Camp on El Corte de Madera Creek, Santa Cruz Peninsula Comment
  SEINET12044826  Prosartes hookeri C. F. Baker 1903-1 5052 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC517390  Prosartes smithii W. R. Dudley 1905-6-18 s.n. San Mateo Santa Cruz Mountain Peninsula, Butano, Deer Park Comment
  SEINET8502087 Image available Prosartes smithii L. M. Henry, M. E. Springer 1946-7-21 372 San Mateo La Honda Comment
  SJSU9997  Prosartes smithii R. L. Roney 1974-4-27 San Mateo N side of La Honda Creek 457 Comment
  SEINET8907180  Prunella vulgaris subsp. lanceolata A. D. 1974-1 San Mateo Hwy. 35; ca. 4 mi. from Jct 35 & 92 610 Comment
  RSA218028  Prunella vulgaris var. lanceolata Walter Knight, I. Knight 1963-8-5 s.n. San Mateo Colma Canyon Comment
  CAS-BOT-BC154500  Prunus ilicifolia J. H. Thomas 1954-5-28 4239 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  RSA187271  Prunus ilicifolia John H. Thomas 1954-5-28 4239 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 30 Comment
  CAS-BOT-BC156357  Prunus virginiana var. demissa D. E. Breedlove 1974-5-13 36207 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  CAS-BOT-BC156361  Prunus virginiana var. demissa George Oberlander 1949-6-25 245 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC356474  Pseudognaphalium beneolens Helen D. Geis 1901-9-26 s.n. San Mateo Roadside to Spanishtown [Spanish Town] Comment
  JROH772  Pseudognaphalium beneolens John H. Thomas 1964-11-29 10537 San Mateo Jasper Ridge Biological Preserve, Stanford University; W end of Searsville dam Comment
  CAS-BOT-BC356868  Pseudognaphalium californicum Ned Cahill 1974-6-21 340 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH752  Pseudognaphalium californicum D. D. Davis 1903-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  JROH757  Pseudognaphalium californicum John H. Thomas 1967-5-10 12851 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH775  Pseudognaphalium luteoalbum John H. Thomas 1970-7-5 15657 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG45074  Pseudognaphalium luteoalbum F. T. Howell 1935-1-13 12578 San Mateo Lake San Andreas Comment
  CAS-BOT-BC357126  Pseudognaphalium luteoalbum Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  JROH777  Pseudognaphalium luteoalbum John H. Thomas 1974-10-29 17649 San Mateo Jasper Ridge Biological Preserve, Stanford University; Small peninsula created by drainage channel cut to accomodate water from Corte Madera Cr. Comment
  CAS-BOT-BC361561  Pseudognaphalium stramineum Walter Knight; Irja Knight 1964-5-30 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  CAS-BOT-BC361572  Pseudognaphalium stramineum Louis F. Pitelka 1973-6-16 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  CAS-BOT-BC85901  Pseudotsuga menziesii Lewis S. Rose 1955-9-19 55178 San Mateo Skyline Boulevard, 7 mi. w. of Saratoga 685 Comment
  CAS-BOT-BC85914  Pseudotsuga menziesii Miss O. Boring 1897-8-31 s.n. San Mateo Santa Cruz Peninsula, King's Mt. Comment
  HSC1587  Pseudotsuga menziesii P. A. Murphy 1965-4-16 11 San Mateo 4 mi from Half Moon Bay on Higgins Canyon Rd. Comment
  UC311070  Pseudotsuga menziesii var. menziesii A. D. E. Elmer 1903-4-1 4562 San Mateo Kings Mountain Comment
  JROH1189  Psilocarphus tenellus John Hunter Thomas 1983-5-23 22251 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack side & low-flow crossing Comment
  UCSB17193  Psilocarphus tenellus Schulte, John 1963-4-28 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC362018  Psilocarphus tenellus George Oberlander No date on label 918 San Mateo San Francisco Watershed Reserve Comment
  CAS-BOT-BC362020  Psilocarphus tenellus Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountain. South Power Line Ridge Comment
  CAS-BOT-BC72654  Pteridium aquilinum John H. Thomas 1961-5-7 9253 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CHSC39781  Pteridium aquilinum Maxey-Jones 1928-4-21 San Mateo La Honda Redwoods. Comment
Read comments
Jul 10 2010
  JROH12  Pteridium aquilinum var. pubescens John H. Thomas 1974-10-12 17624 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC421319  Pterostegia drymarioides Margaret A. Barry 1937-5-15 121 San Mateo On Coal Mine Ridge Comment
  RSA0082793  Pyrola aphylla S. S. Tillett, I. Sternback 1956-6-24 532 San Mateo Middleton property, behind (n.) Portola Camp Store, just outside Portol State Park. 396 Comment
  CAS-BOT-BC104278  Quercus X morehus W. R. Dudley 1910-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula, In a hollow W of the ridge road S of Muchados on the top of the Santa Cruz Mt., Marin Divide Comment
  UCD45078  Quercus agrifolia Jonh M. Tucker 1994-9-9 s.n. San Mateo Tree ca. 35 ft. tall and 12' dbh. Huddart Park. San Mateo County Comment
  JROH5868  Quercus agrifolia var. agrifolia David Y. Hollinger 1980-12-17 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2473  Quercus douglasii John Hunter Thomas 1981-4-27 20505 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM270113  Quercus durata Lyman Benson 1932-8-1 4029 San Mateo Stanford University, Santa Cruz Mt. Range, Corte Madera Creek watershed. 122 Comment
  CAS-BOT-BC105391  Quercus kelloggii Gertrude Anthony 1904-4-23 s.n. San Mateo Los Troncos Road (Foothills or Valley) Comment
  CAS-BOT-BC105402  Quercus kelloggii David D. Keck 1932-3-6 1395 San Mateo La Honda road above Searsville Lake, Santa Cruz Mountains Comment
  JROH2496  Quercus kelloggii A. D. E. Elmer 1903-5-1 4520 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  JROH2504  Quercus kelloggii John Hunter Thomas 1981-2-14 20218 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM223170  Quercus kelloggii S. S. Berry 1909-3-13 s.n. San Mateo Road below Woodside. 91 Comment
  SEINET12034577  Quercus kelloggii Unknown 1832-1 8931 San Mateo La Honda Road to Sky Line Drive Comment
  HSC23995  Quercus lobata Mary Katherine Wicksten 1971-8-20 128 San Mateo Huddart Park, above Oak Area Comment
  JROH2516  Quercus lobata John H. Thomas 1967-5-31 12945 San Mateo Jasper Ridge Biological Preserve, Stanford University; above lake Comment
  RSA623993  Quercus lobata R. Hoffough 1929-4-24 278 San Mateo Jasper Ridge- Stanford Campus. Comment
  UCD47142  Quercus parvula var. shrevei J. M. Tucker 1946-3-2 1372 San Mateo On hillside ca. 4 miles east of Pescadero, San Mateo County, California. 304 Comment
  UCD47153  Quercus parvula var. shrevei Warren G. Roberts 1981-5-17 s.n. San Mateo In ground at Yerba Buena Nursery, 19500 Skyline Blvd. (4.5 miles south of La Honda), Redwood City, San Mateo County, California. Comment
Read comments
Oct 15 2013
  CAS-BOT-BC134777  Quercus wislizeni Arthur Menzies 1962-2-25 s.n. San Mateo San Bruno Mt. Comment
  CAS-BOT-BC134780  Quercus wislizeni W. R. Dudley s.n. San Mateo Santa Cruz Peninsula. By road from Pilarcitos Lake to San Andreas Lake Comment
  NY201784  Quercus wislizeni J. B. Walker 1994-8-15 909 San Mateo Skyline Rd, mile marker 13.84, N of Sky Londa 100 Comment
  UC762353  Quercus wislizeni Robert F. Hoover 1941-2-12 4757 San Mateo above La Honda; La Honda Creek Comment
  CAS-BOT-BC134792  Quercus wislizeni J. H. Thomas 1949-11-5 1227 San Mateo Near airstrip along Butano Fire Break 518 Comment
  JROH5864  Quercus wislizeni var. frutescens Toni Corelli 2003-2-21 257 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail c Comment
  SEINET12086684  Ranunculus W. R. Dudley 1904-1 s.n. San Mateo Corte Madera Creek, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC379081  Ranunculus aquatilis var. diffusus Roxana Ferris 1918-3-31 756 San Mateo at edge of Helvetio (Mud) Lake; Coal Mine Ridge Comment
  POM268420  Ranunculus californicus Lyman Benson 1931-3-15 s.n. San Mateo Emerald Lake; Redwood City; Mt. Range: Santa Cruz 152 Comment
  UC511335  Ranunculus californicus Lyman Benson 1931-3-15 2642 San Mateo Emerald Lake San Francisco Bay Watershed, Santa Cruz Mt. Range, Redwood C 152 Comment
  SEINET5718555 Image available Ranunculus californicus Leslie Fenster 1964-1 10 San Mateo Ca. 2.5 miles up Polhemus Road. Comment
  JEPS127797  Ranunculus californicus var. californicus Adam C. Schneider with C. Matt Guilliams 2013-4-7 68 San Mateo Along dirt road running parallel to overhead power transmission lines. Comment
  CAS-BOT-BC378538  Ranunculus californicus var. californicus M. P. Johnson 1967-2-18 10013 San Mateo open north facing slope off Crocker Avenue just south of San Francisco boundary 183 Comment
  CAS-BOT-BC83416  Ranunculus lobbii W. R. Dudley 1894-5-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside to Crystal Springs. Comment
  JROH3500  Ranunculus muricatus John Hunter Thomas 1987-5-7 24262 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC204201  Ranunculus muricatus A. D. E. Elmer June 1903 4661 San Mateo San Pedro Comment
  CAS-BOT-BC74339  Raphanus sativus Lous F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mile north of Pigeon Point and about 39 miles south of San Francisco. Comment
  RSA210922  Raphanus sativus John H. Thomas 1969-6-4 15106 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto. Comment
  CAS-BOT-BC74337  Raphanus sativus Elizabeth McClintock; Walter Knight; Irja Knight 1963-9-2 s.n. San Mateo San Bruno Mountains. Ridge above Brisbane. Comment
  POM283043  Rhamnus californica Lyman Benson 1928-12-4 770 San Mateo Lake Searsville, Stanford, Santa Cruz, San Francisco Bay 152 Comment
  UC1121739  Rhamnus californica C. M. Belshaw 1935-1-25 1458 San Mateo 2.8 mi w Woodside; Santa Cruz Quad. 457 Comment
  CAS-BOT-BC55891  Rhamnus crocea Carl B. Wolf 1927-8-7 717 San Mateo At Schenkel's Camp back of Stanford University Campus. Los Trancos Creek Comment
  JROH3556  Rhamnus crocea H. L. Mason 1921-3-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3563  Rhamnus crocea John H. Thomas 1973-5-5 16768 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA20326  Rhamnus crocea Carl B. Wolf 1929-5-17 3717 San Mateo 1 mile W of Skyline Drive on Alpine Road. Comment
  CAS-BOT-BC389666  Rhododendron occidentale Wicksten 1975-6-19 233 San Mateo Unspecified Comment
  UC306552  Rhododendron occidentale A. D. E. Elmer 1903-6-1 4298 San Mateo Butano Creek Comment
  CAS-BOT-BC437976  Ribes Alice Eastwood 1922-5-30 11332 San Mateo Crystal Springs Lakes Comment
  JROH2632  Ribes aureum var. gracillimum D. E. Breedlove 1971-5-31 19354 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  POM202466  Ribes californicum L. S. Rose 1933-6-9 33226 San Mateo Belmont Comment
  SEINET13942335 Image available Ribes californicum Lewis S. Rose 1949-1 49007 San Mateo Hillsides, west of Belmont. alt. ca. 300 ft. 91 Comment
  CAS-BOT-BC92998  Ribes californicum var. californicum Lewis S. Rose 1933-6-9 33226 San Mateo Belmont. Comment
  CAS-BOT-BC93004  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
  JROH2635  Ribes californicum var. californicum John H. Thomas 1958-2-15 6989 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2644  Ribes californicum var. californicum John Hunter Thomas 1981-2-14 20217 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2648  Ribes californicum var. californicum John Hunter Thomas 1983-2-21 21280 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Escobar Gate Comment
  OBI14065  Ribes divaricatum Lewis S. Rose 1965-3-16 65008 San Mateo Searsville Lake 122 Comment
  CAS-BOT-BC173082  Ribes divaricatum var. pubiflorum Lewis S. Rose 1965-3-16 65008 San Mateo Searsville Lake 121 Comment
  CAS-BOT-BC173087  Ribes divaricatum var. pubiflorum L. R. A. 1904-4-10 s.n. San Mateo East of Crystal Springs Reserv. Comment
  SBBG33963  Ribes divaricatum var. pubiflorum L. S. Rose 1965-3-16 65008 San Mateo Searsville Lake 121 Comment
  CAS-BOT-BC173090  Ribes divaricatum var. pubiflorum W. R. Dudley 1895-2-23 s.n. San Mateo Above last bridge on San Francisquito Cr. near Stanford University Comment
  CAS-BOT-BC173470  Ribes malvaceum James B. Roof; Walter Knight; Irja Knight 1965-6-20 1127 San Mateo Crystal Cave Canyon Comment
  SBBG33476  Ribes malvaceum A. D. E. Elmer -Mar-1903 4750 San Mateo Portola Comment
  RSA0021679  Ribes malvaceum L. S. Rose 1933-3-2 33006 San Mateo Belmont. Comment
  CAS-BOT-BC212819  Ribes menziesii L. R. Abrams 1916-4-22 5580 San Mateo Pilarcitos Canyon, near the little upper lake Comment
  CAS-BOT-BC212834  Ribes menziesii W. R. Dudley 1904-3-3 s.n. San Mateo Canada del Corte de Madera, Santa Cruz Mts. Comment
  UC11613  Ribes menziesii J. Burtt Davy 1895-4-21 1059 San Mateo Pilarcitos Creek Comment
  UC202760  Ribes menziesii A. D. E. Elmer June, 1903 4787 San Mateo Lake San Andreas Comment
  RSA0021760  Ribes menziesii var. leptosmum W. R. Dudley 1904-3-27 s.n. San Mateo Devils Canyon, Mill Cr. Santa Cruz Mountains. [County not listed, but probably San Mateo] Comment
  JEPS121700  Ribes menziesii var. menziesii Stella Yang 2013-5-10 San Mateo Los Troncos Open Space Preserve, Franciscan Loop Trail at Los Troncos Creek crossing Comment
  CAS-BOT-BC144605  Ribes sanguineum var. glutinosum Lewis S. Rose 1955-4-1 55041 San Mateo Kings Mountain 609 Comment
  CAS-BOT-BC144612  Ribes sanguineum var. glutinosum George Oberlander 1949-4-9 51 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC144636  Ribes sanguineum var. glutinosum W. R. Dudley 1894-3-29 s.n. San Mateo Between Half Moon Bay and Woodside Comment
  CAS-BOT-BC144641  Ribes sanguineum var. glutinosum A. D. E. Elmer 1903-3-1 4470 San Mateo Portola Comment
  RSA0019104  Ribes sanguineum var. glutinosum L. S. Rose 1947-3-11 47027 San Mateo Kings Mountain. 610 Comment
  JROH1204  Rigiopappus leptocladus John H. Thomas 1963-5-15 10089 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1208  Rigiopappus leptocladus John Hunter Thomas 1991-5-2 25012 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA8343  Rigiopappus leptocladus L. S. Rose 1933-4-30 33130 San Mateo Redwood City Comment
Read comments
Jul 24 2013
  CAS-BOT-BC341024  Robinia pseudoacacia J. H. Thomas 1960-6-8 8774 San Mateo Road bank between Stanford and Searsville Lake along Sand Hill Road Comment
  JROH2207  Robinia pseudoacacia Carol Zabel 2007-4-30 66 San Mateo Jasper Ridge Biological Preserve, Stanford University; caretaker's garden area Comment
  JROH2209  Robinia pseudoacacia Toni Corelli 2011-3-7 366 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Trail 20; Bear Creek just before confluence of San Francisquito Creek 81 Comment
  UC881303  Romanzoffia californica L. R. Abrams 1916-4-22 5582 San Mateo at the little upper lake Pilarcitos Canyon; Santa Cruz Mt.Peninsula, Pilarcitos Canyon Comment
  CAS-BOT-BC74651  Rorippa curvisiliqua W. R. Dudley 1909-10-31 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside Valley Ponds. Comment
  CAS-BOT-BC147622  Rosa californica Walter Knight; Irja Knight 1964-5-30 618 San Mateo Colma Canyon Comment
  CAS-BOT-BC147623  Rosa californica Alice B. Wright 1919-8-1 s.n. San Mateo Granada Comment
  CAS-BOT-BC147627  Rosa californica Elizabeth McClintock; Paul Reeberg 1988-4-30 s.n. San Mateo Buckeye Canyon Comment
  UC725850  Rosa californica A. A. Heller 1907-5-28 8582 San Mateo back of San Mateo (on the Half Moon Bay road) Comment
  POM140214  Rosa gymnocarpa Edward L. Greene 1902-5-10 798 San Mateo King's Mtn Comment
  JROH3763  Rosa gymnocarpa var. gymnocarpa John Hunter Thomas 1989-5-11 24738 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC146800  Rosa multiflora Peter Rubtzoff; Elizabeth McClintock; Paul Reeberg 1988-7-28 s.n. San Mateo unspecified Comment
  CAS-BOT-BC156646  Rubus bifrons Elizabeth McClintock 1967-9-24 s.n. San Mateo Crocker Avenue Comment
  CAS-BOT-BC152826  Rubus parviflorus G. H. Mallory 1919-8-20 s.n. San Mateo La Honda - Santa Cruz Mountain Peninsula Comment
  LA37943  Rubus parviflorus Ira L. Wiggins; 1939-8-12 9296 -A San Mateo Along banks of Gazos Cr. about 5 mi. inland from coast Comment
  UC706966  Rubus parviflorus Ira L. Wiggins 1939-8-12 9296 A San Mateo about 5 mi inland from coast (along banks of Gazos Creek); Gazos Creek Comment
  RSA152234  Rubus parviflorus var. velutinus I. L. Wiggins 1925-04 1658 San Mateo On Kings Mtn Rd 3/4 mile above Woodside. Comment
  CAS-BOT-BC156765  Rubus spectabilis W. R. Dudley 1894-3-26 s.n. San Mateo Near [Lobetas] Lobitos Comment
  CDA26335  Rubus spectabilis R. J. Pummer 1992-6-8 San Mateo Farwell Nursery, Woodside. 0 Comment
  CAS-BOT-BC157069  Rubus ursinus Margaret A. Barry 1938-4-21 243 San Mateo Woods on Coal Mine Ridge Comment
  CAS-BOT-BC157075  Rubus ursinus J. Clausen 1948-5-9 2081 San Mateo Tunitas Creek road 121 Comment
  CAS-BOT-BC157105  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6055 San Mateo Near Pescadero Comment
  CAS-BOT-BC157112  Rubus ursinus Javier Penalosa 1963-2-23 2650 San Mateo San Bruno Mtn. Ravine south of Crocker Ave. 213 Comment
  CHSC39824  Rubus ursinus Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  UC136500  Rubus ursinus C. F. Baker 1902-1-15 246 San Mateo West side King's Mountain Comment
  UC204056  Rubus ursinus A. D. E. Elmer June, 1903 4664 San Mateo Crystal Springs Lake southern end Comment
  CAS-BOT-BC157095  Rubus ursinus W. R. Dudley 1897-1-1 s.n. San Mateo Near junction of forks of Butano Cr. Comment
  CAS-BOT-BC422080  Rumex acetosella John H. Thomas 1958-3-19 7064 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 91 Comment
  RSA187411  Rumex acetosella John H. Thomas 1964-4-30 10362 San Mateo San Bruno Mtn in northern part. Northern Coastal Scrub of Munz and Keck 305 Comment
  RSA128689  Rumex acetosella Peter H. Raven 1950-6-3 2221 San Mateo along Millbrae Ave., Millbrae. 61 Comment
  CAS-BOT-BC421819  Rumex conglomeratus A. D. E. Elmer 1903-6-1 4276 San Mateo San Mateo Comment
  JROH5595  Rumex crispus John Rawlings 2013-6-13 1189 San Mateo Jasper Ridge Biological Preserve, Stanford University. West end of the shallow depression known as the Semaphore Grass Meadow. 122 Comment
  CAS-BOT-BC433545  Rumex fueginus W. R. Dudley 1902-9-21 s.n. San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  CAS-BOT-BC433820  Rumex pulcher A. D. E. Elmer 1903-7-1 4778 San Mateo Pilarcitos Stone Dam Comment
  UCD101450  Rumex pulcher W. A. Harvey; J. M. Tucker 1948-6-28 1695 San Mateo 3 miles north of Pescadero. Comment
  CAS-BOT-BC433997  Rumex salicifolius Josephine D. Randall 1907-7-23 291 San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  JROH3314  Rumex salicifolius Toni Corelli 2006-8-9 320 San Mateo Jasper Ridge Biological Preserve, Stanford University; road E near intersection of Trail 14 118 Comment
  JROH5731  Rumex salicifolius John Rawlings 2013-5-21 1198 San Mateo Jasper Ridge Biological Preserve, Stanford University; moist ditch along east side of road E opposite intersection of trail 14 116 Comment
  JROH2213  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
  JROH2222  Rupertia physodes John Hunter Thomas 1981-5-14 20571 San Mateo Jasper Ridge Biological Preserve, Stanford University; old shack riders shack Comment
  UCD23435  Rupertia physodes Alan T. Whittemore 1976-5-31 135 San Mateo Alpine Road, near east end of Corte Madera Creek Trail. Mixed evergreen forest. Sequoia in sheltered spots. Acer, Quercus and Alnus in open areas and by stream. Flowers past, originally purple. Trailing on forest floor. Foliage with somewhat unpleasant odor. Comment
  UC1109006  Ruppia cirrhosa H. E. Parks Oct 1928 San Mateo Laguna Salada Comment
  UC279587  Ruppia cirrhosa W. A. Setchell 1925-8-29 San Mateo Laguna de Salada Comment
  CAS-BOT-BC454107  Ruppia cirrhosa James McMurphy 1909-10-17 s.n. San Mateo San Gregorio Comment
  UCD163902  Ruta Peter Rubtzoff 1988-4-12 9901 San Mateo San Bruno Mountain, on east side of Summit Road (former Radio Road), ca. 1 mile from San Bruno Mtn. Park entrance. Comment
  SD146161  Ruta chalepensis G. K. Helmkamp, E. A. Helmkamp 1999-6-28 5003 San Mateo Pescadero Crk Watershed: Bean Hollow Rd 0.3 mi S of Pescadero Rd (SW of Pescadero). Slopes above Butano Crk. 60 Comment
  UCD99141  Salicornia rubra Malcolm A. Nobs; S. Galen Smith 1948-12-11 713 San Mateo Highway 101 near shore of bay, at Whipple Avenue intersection, Redwood City. Comment
  HSC19942  Salix exigua var. hindsiana L. S. Rose 1965-3-8 65003 San Mateo Searsville Lake 122 Comment
  JROH3847  Salix exigua var. hindsiana John Hunter Thomas 1981-4-23 20494 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of lake Comment
  JROH3851  Salix exigua var. hindsiana John Hunter Thomas 1988-4-28 24414 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway Comment
  CAS-BOT-BC125367  Salix lasiandra var. lasiandra Peter H. Raven 1964-9-13 19671 San Mateo Half Moon Bay Comment
  CAS-BOT-BC125371  Salix lasiandra var. lasiandra W. R. Dudley 1900-3-17 s.n. San Mateo South side of Montara Mts. along road Comment
  CAS-BOT-BC166959  Salix lasiolepis Peter Rubtzoff 1976-3-14 8447 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  POM161137  Salix lasiolepis L. R. Abrams 1915-3-13 5164 San Mateo Near jct of San Francisquito and Los Trancos creeks. About 2 miles from Stanford University. Comment
  POM167483  Salix lasiolepis A. D. E. Elmer 1903-03 4875 San Mateo Searsville Lake. Comment
  SBBG33482  Salix lasiolepis A. D. E. Elmer -Mar-1903 San Mateo Searsville Lake Comment
  CAS-BOT-BC108254  Salix lasiolepis var. bigelovii Roxana S. Ferris 1921-4-7 2145 San Mateo Baden Station - Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC124481  Salix lasiolepis var. lasiolepis Elizabeth McClintock 1965-3-28 s.n. San Mateo Devil's Arroyo Comment
  CAS-BOT-BC128208  Salix lucida W. R. Dudley 1894-3-26 s.n. San Mateo Near San Gregorio - Santa Cruz Peninsula Comment
  RSA184900  Salix lucida subsp. lasiandra L. S. Rose 1965-3-16 65007 San Mateo Searsville Lake. 122 Comment
  SBBG32452  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
  SEINET3158751  Salix scouleriana L. S. Rose 1934-2-10 34025 San Mateo Skyline blvd. 4 mi S Kings Mtn. Comment
  CAS-BOT-BC126482  Salix sitchensis W. R. Dudley 1899-5-14 s.n. San Mateo So.W. of Baden Station Comment
  CAS-BOT-BC126483  Salix sitchensis L. R. A. 1902-3-1 2272 San Mateo Kings Mountain Comment
  CAS-BOT-BC126487  Salix sitchensis Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Colma Canyon Comment
  CAS-BOT-BC126519  Salix sitchensis W. R. Dudley 1898-4-24 s.n. San Mateo El Corte de Madera Creek Comment
  POM87714  Salix sitchensis L. R. Abrams 1902-1 2272 San Mateo Kings Mtn. Comment
  SEINET12003697  Salix sitchensis W. R. Dudley 1897-1 s.n. San Mateo Santa Cruz Peninsula, bank of Pescedero Creek below Peter's Creek 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
  CDA3228  Salsola soda T. C. Fuller 1969-6-12 18550 San Mateo West end of Dumbarton Bridge, Menlo Park. 0 Comment
  SJSU5408  Salvia officinalis A. J. Cortopassi 1959-5-9 San Mateo 2319 Hillside Dr, Burlingame Comment
  RSA681668  Salvia sonomensis Annuschka Deb 1989-4-14 108 San Mateo YBN Demonstration Garden, Woodside, CA Comment
  UC1219867  Salvia spathacea John H. Thomas 1961-5-7 9299 San Mateo San Bruno Mountain; n part of San Mateo County 304 Comment
  UC138837  Salvia spathacea C. F. Baker 1903-4-6 1878 San Mateo San Bruno Hills San Francisco Comment
  RSA320910  Salvia spathacea Robert A. Norris 1984-3-21 4658 San Mateo Blue Blossom Hill, San Bruno Mts. 366 Comment
  POM46725  Sambucus microbotrys A. D. E. Elmer 1903-05 4663 San Mateo Butano Creek Comment
  CAS-BOT-BC246017  Sambucus nigra subsp. caerulea Lewis S. Rose 1966-8-15 66084 San Mateo Pulgas Water Temple 91 Comment
  JROH1671  Sambucus nigra subsp. caerulea John H. Thomas 1973-6-15 16853 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG32342  Sambucus nigra subsp. caerulea L. S. Rose 1966-8-15 San Mateo Pulgas Water Temple 91 Comment
  CDA39078  Sanicula crassicaulis M. K. Beyers 2013-3-3 s.n. San Mateo Montara State Beach, McNee Ranch Trail Trailhead. Comment
  JROH328  Sanicula crassicaulis Ynez Henderson 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  JROH333  Sanicula crassicaulis John H. Thomas 1971-5-30 15978 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH345  Sanicula crassicaulis John Hunter Thomas 1987-5-15 24287 San Mateo Jasper Ridge Biological Preserve, Stanford University; near picnic area Comment
  UCD164334  Sanicula crassicaulis Peter Rubtzoff 1976-6-30 8712 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JROH347  Sanicula tuberosa H. J. Dengler 1964-3-29 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; in the center of the westernmost enclosure, above the old trail to S.F. Creek Comment
  CAS-BOT-BC166661  Satureja 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
  JEPS85564  Satureja douglasii Craig Dremann 1986-9-13 330 San Mateo Stage Road 1 1/2 mi s San Gregorio Comment
  JEPS8811  Scabiosa atropurpurea James G. Daly 540 San Mateo vicinity of San Gregorio Comment
  CAS-BOT-BC210157  Schedonorus arundinaceus Peter Rubtzoff 1976-6-13 8633 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction and northwest of Fog Forest. Comment
  RSA790257  Schedonorus arundinaceus Peter Rubtzoff 1976-6-13 8632 San Mateo San Bruno Mtn: 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction and NW of Fog Forest. Comment
  UC1100751  Schoenoplectus acutus var. occidentalis Malcolm A. Nobs, S. Galen Smith 1949-8-25 1568 San Mateo brackish marsh s Rockaway Beach; marsh s of Rockaway Beach Comment
  SJSU1654  Schoenoplectus acutus var. occidentalis L. S. Chan 1955-5-29 112 San Mateo freshwater pond near San Gregorio Beach Comment
  HSC7526  Schoenoplectus americanus R. E. Jones 1966-4-4 22 San Mateo Ano Nuevo Beach Comment
  CAS-BOT-BC111603  Schoenoplectus californicus W. R. Dudley 1909-10-4 s.n. San Mateo North pond, northern part of county Comment
  SEINET11754563  Schoenoplectus pungens E. A. Purer 1933-1 5391 San Mateo 2 mi S of Pigeon Point Comment
  UC1100905  Scirpus maritimus Malcolm A. Nobs, S. Galen Smith 1949-8-25 1564 San Mateo marshes at Sharp Park Comment
  CDA19091  Scirpus maritimus J. Beall 2001-4-24 PDR 064435 San Mateo Belmont Creek at Old Country Rd., Belmont. 0 Comment
  UC1102717  Scirpus pungens John H. Thomas 1960-6-25 8797 San Mateo along or near small creek running into Redwood Slough between El Camino Real and rr tracks, near Maple St. Redwood City Comment
  RSA132362  Scoliopus bigelovii John H. Thomas 1960-3-1 8539 San Mateo Dense redwood forest along Kings Mt. road about 0.5 mile below Skyline Blve. 610 Comment
  UC765856  Scoliopus bigelovii R. F. Hoover 1939-3-3 3897 San Mateo above Portola (on La Honda rd.) Comment
  CAS-BOT-BC519008  Scoliopus bigelovii Harold Block 1926-1-24 s. n. San Mateo Kings Mountain Comment
  CAS-BOT-BC519016  Scoliopus bigelovii A. D. E. Elmer 1903-3-1 4559 San Mateo King's Mountain Comment
  POM193871  Scoliopus bigelovii W. R. Dudley 1895-3-5 s.n. San Mateo Kings Mt.; Plants of the Santa Cruz Peninsula. Comment
  POM292612  Scoliopus bigelovii Arthur L. Cohen 1935-2-22 523 San Mateo Kings Mountain Road; Mt. Range: Santa Cruz; Watershed: San Francisco Bay. 244 Comment
  SEINET12055152  Scoliopus bigelovii L. R. Abrams 1904-1 s.n. San Mateo Bear Gulch, Santa Cruz Mountains Comment
  CDA7622  Scolymus hispanicus T. C. Fuller 1965-7-8 13755 San Mateo D. McBryde property, 140 Eleanor Drive, Woodside. 0 Comment
  JROH4123  Scrophularia californica John H. Thomas 1962-7-15 9917 San Mateo Jasper Ridge Biological Preserve, Stanford University; near northern end of ridge Comment
  UCSC004913  Scrophularia californica Monica Larenas 1985-6-1 17 San Mateo Hwy 92, 1 mi W of summit, intersection with Skyline Blvd. Comment
  UCR121556  Scrophularia californica subsp. californica George K. Helmkamp, E. A. Helmkamp 1999-6-28 4980 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  UC76166  Scutellaria tuberosa Milo S. Baker 1904-5-15 San Mateo near Burlingame Comment
  JROH1897  Sedum spathulifolium John Hunter Thomas 1981-5-5 20535 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC59274  Sedum spathulifolium C. F. Baker 1902-5-27 3198 San Mateo Foothills near Stanford Cal Comment
  UC311548  Senecio aronicoides A. D. E. Elmer May 1903 4508 San Mateo San Bruno Hills Comment
  CAS-BOT-BC363385  Senecio aronicoides W. R. Dudley 1893-5-27 s.n. San Mateo Santa Cruz Peninsula. Near Summit Springs - Kings Mt. Comment
  RSA0013330  Senecio aronicoides A. D. E. Elmer 1903-05 4508 San Mateo San Bruno Hills. Comment
  CDA7644  Senecio elegans G. D. Barbe 1977-11-17 2354 San Mateo Thornton Beach State Park, Daly City. 0 Comment
  JROH686  Senecio minimus Toni Corelli 2006-9-20 329 a San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Trail 12 along Corta Madera Creek 106 Comment
  UCSC007780  Senecio vulgaris Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC80293  Sequoia sempervirens C. F. B. 1902-1-15 319 San Mateo West side King's Mountain Comment
  HSC2616  Sequoia sempervirens P. A. Murphy 1965-4-16 41 San Mateo 6 mi. from Half Moon Bay in Hatch's Woods 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
  CDA43035  Setaria parviflora Eaton 2014-7-6 PDR# 010 P06220324 San Mateo Mapache Drive near Westridge Drive, Portola Valley. 0 Comment
  UC28466  Sherardia arvensis J. Burtt Davy Jun 21 1893-Jun 23 1893 1154 San Mateo Pilarcitos Lake and Pilarcitos Canyon Comment
  POM223278  Sidalcea diploscypha L. S. Rose 1935-6-9 35211 San Mateo Emerald Lake, W. of Redwood City Comment
  RSA448568  Sidalcea diploscypha L. S. Rose 1936-5-28 36300 San Mateo Emerald lake, W. of Redwood City. Comment
  UCD116803  Sidalcea malviflora Gerald W. Sodomka 1963-5-5 36 San Mateo Moss Beach. 30 Comment
  JEPS127780  Sidalcea malviflora subsp. laciniata Adam C. Schneider with C. Matt Guilliams 2013-3-9 34 San Mateo Comment
  UC204266  Sidalcea malviflora subsp. laciniata A. D. E. Elmer May 1903 4637 San Mateo San Bruno Hills Comment
  JEPS48780  Sidalcea malviflora subsp. laciniata James G. Daly 1934-1 211 San Mateo branch of La Honda Canyon Santa Cruz Mts., , La Honda Canyon (San Gregorio Watershed) Comment
  JROH2972  Sidalcea malviflora subsp. malviflora John Hunter Thomas 1981-4-21 20465 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM214348  Sidalcea malviflora subsp. malviflora I. L. Wiggins 1931-2-21 5097 San Mateo Near Pescadero Comment
  SD38220  Silene gallica Edith A. Purer 1933-7-27 5343 San Mateo Pigeon Point. Comment
  CAS-BOT-BC386859  Silene gallica George Oberlander 1949-4-23 811 San Mateo Sawyer Ridge Comment
  CAS-BOT-BC389195  Silene laciniata subsp. californica A. D. E. Elmer 1903-6-1 4446 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC384626  Silene laciniata subsp. californica L. Sigal 1969-7-1 s.n. San Mateo Belmont Comment
  RSA477822  Silene scouleri Glenn A. Gorelick 1967-5-12 s.d. San Mateo San Bruno Mts; overlooking Daly City near San Francisco. Comment
  CAS-BOT-BC74991  Sinapis arvensis Elizabeth McClintock; Paul Reeberg 1989-3-17 s.n. San Mateo San Bruno Mountains. Southwest of PG&E Marsh. 30 Comment
  POM273726A  Sisymbrium officinale Lyman Benson 1935-5-5 6533 San Mateo Lake Searsville; Santa Cruz Mt. Range. S. F. Bay watershed 152 Comment
  POM273726B  Sisymbrium officinale Lyman Benson 1935-5-5 6533 San Mateo Lake Searsville. Stanford University. Santa Cruz Mtn range. S.F. Bay watershed. 152 Comment
  CAS-BOT-BC75350  Sisymbrium officinale Reed C. Rollins 1941-2-23 2941 San Mateo Roadside, about 10 miles south of San Francisco. Comment
  CHSC39827  Sisyrinchium bellum Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  JROH4444  Sisyrinchium bellum John Hunter Thomas 1981-4-23 20488 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM193639  Sisyrinchium bellum Le Roy Abrams 1902-4-13 2327 San Mateo San Andreas Lake. Comment
  IRVC9060  Sisyrinchium bellum P. W. Rundel 1963-6-11 1129 San Mateo San Fransisco Bay drainage area; Old La Honda Road. Santa Cruz Mountain Range 305 Comment
  UCSB18427  Sisyrinchium bellum Muirhead, M. 1964-4-17 San Mateo Crocker Estate; Hillsborough 76 Comment
  RSA790890  Sisyrinchium californicum Peter Rubtzoff 1975-5-21 7969 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction Comment
  UC844176  Smilacina racemosa L. R. Abrams 1916-3-25 5585 San Mateo near Dam; Santa Cruz Mountain Peninsula, Searsville Ridge Comment
  JROH4196  Solanum John Hunter Thomas 1980-11-12 20164 San Mateo Jasper Ridge Biological Preserve, Stanford University. On delta Comment
  JROH4182  Solanum americanum John Hunter Thomas 1991-11-21 25102 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  RSA130408  Solanum douglasii W. R. Dudley 1897-10-11 s.n. San Mateo Near Half Moon Bay (Spanishtown). Comment
  UC1537407  Solanum douglasii Gordon H. True Jr. 1937-7-23 806 San Mateo n of Sharpe Park 15 Comment
  UCD126930  Solanum douglasii E. Jacqueline Garcia 1986-4-19 s.n. San Mateo San Bruno Mountains near San Francisco County Line, 0.5 mile from Summit Loop trailhead on Guadalupe Canyon Road. Comment
  JEPS12100  Solanum furcatum W. L. Jepson 1923-10-15 10256 San Mateo hills w of colma ( vicinity of San Francisco Bay) Comment
  JEPS17020  Solanum furcatum Rimo Bacigalupi with J. R. Sweeney, G. Bacigalupi Jr., and C. Fenneman 1954-8-3 4734 San Mateo along upper slopes of the Edgemar Road (northwestern San Mateo County) 121 Comment
  UC127293  Solanum furcatum Katharine Brandegee 1908-3-8 San Mateo San Pedro Point Comment
  UC1327228  Solanum furcatum John T. Doyen 1966-3-28 34 San Mateo San Bruno Mountains, near Radio Towers on top San Bruno Mountains Comment
  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
  RSA14505  Solanum physalifolium var. nitidibaccatum I. L. Wiggins 1935-8-24 8164 San Mateo Pepper field, about 0.5 mile S of Moss Beach. Comment
  CAS-BOT-BC154180  Solanum umbelliferum A. D. Randall 1907-4-27 406 San Mateo King's Mt. Road Comment
  CAS-BOT-BC58481  Solanum umbelliferum L. Abrams 1902-1-7 2262 San Mateo King's Mountain Comment
  JROH4185  Solanum umbelliferum John H. Thomas 1956-4-7 5603 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM87735  Solanum umbelliferum L. R. Abrams 1902-1-7 2262 San Mateo Kings Mts. Comment
  UC676731  Solanum umbelliferum Reed C. Rollins 1941-3-16 2944 San Mateo about 6 mi w of Woodside (e slope of Kings Mountain); Santa Cruz Mountains, Kings Mountain Comment
  UCD23309  Solanum umbelliferum Alan T. Whittemore 1976-5-29 105 San Mateo Intersection of Polyhemus Creek Road and Ticonderoga Street, San Mateo. 140 Comment
  RSA523369  Solanum umbelliferum G. H. True 1936-4-5 385 San Mateo Canyon near coast between San Gregorio and Pescadero. 30 Comment
  RSA681607  Solanum umbelliferum Annuschka Deb 1989-4-19 115 San Mateo YBN Berm near parking lot. From Fanny Arnold's ranch. Comment
  SEINET7262166 Image available Solanum umbelliferum S. B. Snow 1907-2-18 16 San Mateo Jasper Ridge Comment
  JROH5859  Soleirolia soleirolii Toni Corelli, Ann Lambrecht 2005-7-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University, San Mateo Co.; face of Searsville Dam, west side. Comment
  UC1777680  Solidago elongata J. D. Skoss 1948-8-22 121 San Mateo San Vicente Canyon Comment
  LA203968  Solidago velutina subsp. californica U. S. Grant; 1926-9-6 IV San Mateo Kuiqs Mountain 609 Comment
  JROH1246  Soliva sessilis John Hunter Thomas 1981-5-19 20612 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC353415  Soliva sessilis Peter Rubtzoff 1977-4-14 8940 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction. East Fork Colma Creek canyon area, San Bruno Mountains. Comment
  CAS-BOT-BC365923  Soliva sessilis Le Roy Abrams 1902-5-4 2428 San Mateo Woodside Comment
  CAS-BOT-BC365934  Soliva sessilis Philip C. Wheeler 1965-5-17 s.n. San Mateo San Bruno Mountain. In Crocker Hills near Cow Palace Comment
  CAS-BOT-BC374490  Sonchus asper Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon Comment
  CAS-BOT-BC374704  Sonchus oleraceus Margaret A. Barry 1938-4-21 240 San Mateo Coal Mine Ridge Comment
  JROH1262  Sonchus oleraceus John H. Thomas 1974-4-6 17092 San Mateo Jasper Ridge Biological Preserve, Stanford University; west side of dam Comment
  JROH5586  Sparganium eurycarpum var. eurycarpum John Rawlings 2012-7-9 1201 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Near upper lake (west of Portola Rd.) adjacent to power line right-of-way. 106 Comment
  JROH5531  Sparganium eurycarpum var. eurycarpum John Hunter Thomas 1992-7-24 25390 San Mateo Jasper Ridge Biological Preserve, Stanford University. In water near boat ramp. Comment
  CAS-BOT-BC236629  Spartina foliosa Ray Pestrong 1963-11-8 s.n. San Mateo In the marsh near East Palo Alto, Dumbarton Bridge, South San Francisco Bay Comment
  UC1751042  Spartina foliosa Annetta M. Carter with Mary Bowerman, Mrs. Bowerman, Betty Wood, Florence Little 1934-10-21 736 San Mateo Dumbarton Bridge Comment
  JROH2225  Spartium junceum Ann Lambrecht 2009-6-4 36 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek, south side, opposite Dennis Martin marker Comment
  CAS-BOT-BC389687  Spergula arvensis Jeanie Nieri 1953-2-3 s.n. San Mateo Empty lot three miles west of Hillsdale Comment
  CAS-BOT-BC390007  Spergula arvensis Javier Penalosa 1963-2-23 2643 San Mateo San Bruno Mtn. Ravine south of Crocker Ave. 213 Comment
  CAS-BOT-BC390205  Spergularia bocconi Elizabeth McClintock; Paul Reeberg 1989-6-3 s.n. San Mateo San Bruno Mountains. P.G.&E. Marsh Comment
  CAS-BOT-BC390451  Spergularia macrotheca var. macrotheca Walter Knight; Irja Knight; Elizabeth McClintock 1964-9-11 s.n. San Mateo San Bruno Mountain. Point San Bruno Comment
  CAS-BOT-BC390463  Spergularia macrotheca var. macrotheca Anne Constant 1955-5-28 197 San Mateo Top of bluff at Pescadero Beach 7 Comment
  CAS-BOT-BC390467  Spergularia macrotheca var. macrotheca Elsie M. Zeile 1921-7-30 s.n. San Mateo Salada Comment
  CAS-BOT-BC390462  Spergularia macrotheca var. macrotheca Robt. T. Orr 1961-7-13 s.n. San Mateo Ano [Ano] Nuevo Island Comment
  SD25965  Spiranthes romanzoffiana Edith A. Purer 1939-7-1 7928 C San Mateo Wet spot, sand dunes, Ano Nuevo Point. Comment
  SJSU15796  Stachys ajugoides Toni Corelli 2010-7-8 657 San Mateo Bean Hollow State Beach. On east side of Arryo de los Frijoles Trail. 10 Comment
  POM224475  Stachys ajugoides L. S. Rose 1936-5-23 s.n. San Mateo E. of Crystal Springs Lake. 152 Comment
  POM63302  Stachys ajugoides A. D. E. Elmer 1903-06 4260 San Mateo Crystal Springs Lake. Comment
  SEINET13947989 Image available Stachys ajugoides Lewis S. Rose 1941-1 41469 San Mateo Low wet open fields, Belmont. Alt ca 3 m 3 Comment
  UC100826  Stachys bullata J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  JROH2907  Stachys bullata John Hunter Thomas 1984-5-27 23407 San Mateo Jasper Ridge Biological Preserve, Stanford University; beyond redwood grove along San Francisquito Creek, about 300 yards to the east Comment
  POM283278  Stachys bullata Lyman Benson 1930-6-14 2160 San Mateo La Honda. 305 Comment
  POM284551  Stachys bullata Lyman Benson 1930-5-26 2136 San Mateo Stanford University. Lake Searsville. 152 Comment
  RSA116743  Stachys bullata L. R. Abrams 1915-6-7 5245 San Mateo Woodside to Crystal Springs Road. Comment
  NY415785  Stachys gracilenta A. A. Heller 1907-5-28 8574 San Mateo Above Crystal Springs on the Half Moon Bay road Comment
  SEINET13948132 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
  CAS-BOT-BC164649  Stachys rigida subsp. quercetorum Peter Rubtzoff 1976-6-13 8636 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  RSA63022  Stachys rigida subsp. quercetorum L. S. Rose 1950-5-20 50139 San Mateo Emerald Lake region, hills w. of Redwood City. 244 Comment
  JROH2894  Stachys rigida var. quercetorum John Hunter Thomas 1978-4-20 19089 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1783  Stellaria media John Hunter Thomas 1978-4-20 19073 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5324  Stipa lepida John Hunter Thomas 1981-5-25 20618 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5328  Stipa lepida John Hunter Thomas 1992-5-15 25334 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5333  Stipa pulchra John H. Thomas 1963-3-20 10023 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD138364  Stuckenia pectinata Malcolm A. Nobs; S. Galen Smith 1949-8-25 1552 San Mateo Sharp Park. Comment
  SD38068  Stylomecon heterophylla Marie Cummings 1933-5-8 80 San Mateo Steven's Creek. Comment
  CAS-BOT-BC271604  Symphoricarpos albus var. laevigatus Walter Knight; Irja Knight 1964-5-30 594 San Mateo Colma Canyon, San Bruno Mountain Comment
  CAS-BOT-BC271646  Symphoricarpos albus var. laevigatus Josephine D. Randall 1907-7-23 28 San Mateo Near Crystal Springs Lake, Santa Cruz Peninsula Comment
  RSA770504  Symphoricarpos albus var. laevigatus Lyman Benson 1937-7-25 8466 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  CAS-BOT-BC237068  Symphoricarpos mollis Fred Hemphill 1973-4-15 672 San Mateo Area north of Malabar Road and Melendy Drive, San Carlos 207 Comment
  JROH1687  Symphoricarpos mollis John Rawlings, Ann Lambrecht 2010-5-2 1097 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near west end of Birder's Trail between and parallel Rd. E and Trail 7 150 Comment
  CAS-BOT-BC344895  Symphyotrichum chilense Peter Rubtzoff 1975-9-11 8376 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  JROH525  Symphyotrichum chilense John Hunter Thomas 1981-9-24 20750 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI2758  Symphyotrichum chilense Lewis S. Rose 1966-8-15 66083 San Mateo Pillar Point 2 Comment
  SD30757  Symphyotrichum chilense Edith A. Purer 1933-8-25 5521 San Mateo Spring Valley, along roadside Comment
  SJSU5659  Symphyotrichum chilense L. S. Rose 1966-8-15 66083 San Mateo Pillar Point 1 Comment
  CAS-BOT-BC99389  Symphyotrichum subspicatum E. H. Quayle 1920-5-18 242 San Mateo Half Moon Bay, Santa Cruz Mountain Peninsula Comment
  UC1536888  Symphyotrichum subspicatum G. H. True Jr. 1936-6-14 507 San Mateo in canyon s of Salada Beach 304 Comment
  CAS-BOT-BC99387  Symphyotrichum subspicatum Phillip Wheeler 1965-5-23 s.n. San Mateo Radio Road, San Bruno Mountain Comment
  SD72386  Symphyotrichum subspicatum Darley F. Howe 1967-8-6 4369 San Mateo Half Moon Bay. Comment
  JROH1286  Taraxacum officinale John H. Thomas 1976-4-19 18084 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam 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
  JROH3000  Taraxia ovata Duncan M. Porter 1961-4-8 746 San Mateo Jasper Ridge Biological Preserve, Stanford University; in large meadow at crest of ridge Comment
  RSA119855  Tauschia kelloggii W. R. Dudley 1892-5-14 s.n. San Mateo Pass, near head of Calera Valley. Comment
  RSA159427  Tellima grandiflora John H. Thomas 1961-5-14 9363 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  UC203041  Tellima grandiflora A. D. E. Elmer Jun 1903 4702 San Mateo Pescadero Comment
  UCR122916  Tellima grandiflora George K. Helmkamp, E. A. Helmkamp 2001-6-2 6786 San Mateo San Francisco Bay Region, Purisima Creek Road, east of Half Moon Bay at Purisima Creek, 3.2 miles east of CA Hwy 1 244 Comment
  UC1736327  Tellima grandiflora Dean William Taylor 1969-4-13 73 San Mateo 5 mi E of San Gregorio; Highway 85 152 Comment
  UCD96952  Tetragonia tetragonoides Beecher Crampton 1962-6-11 6517 San Mateo Pacifica, Rockaway Beach, State Hwy. 1. Comment
  CAS-BOT-BC438271  Tetragonia tetragonoides Saichi Kawahara 1969-12-3 1739 San Mateo Mouth of Ana [Ano] Nuevo Creek Comment
  UCR51661  Thalictrum fendleri R. Ascanio 1988-4-17 s.n. San Mateo E on Gazo Creek Road off Hwy 1, c. 2 mi. north of Ano Nuevo State Reserve 85 Comment
  CAS-BOT-BC399848  Thalictrum polycarpum Peter Rubtzoff 1953-5-14 1350 A San Mateo Pilarcitos Creek Canyon 1 to 2 miles downstream from Pilarcitos Lake Comment
  CAS-BOT-BC66664  Thysanocarpus curvipes John H. Thomas 1971-4-3 15745 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66673  Thysanocarpus curvipes John H. Thomas 1976-4-2 18074 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JROH1619  Thysanocarpus curvipes John Hunter Thomas 1990-4-7 24801 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH394  Torilis nodosa John Hunter Thomas 1986-5-6 24018 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH391  Torilis nodosa John Hunter Thomas 1983-6-2 22327 San Mateo Jasper Ridge Biological Preserve, Stanford University; near green shack Comment
  JROH400  Torilis nodosa John Hunter Thomas 1988-4-28 24416 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4759  Toxicoscordion fremontii John H. Thomas 1977-4-8 18522 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5913  Toxicoscordion fremontii L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail behind weather station, near upper grassland Comment
  CDA7720  Tragopogon dubius I. J. Campbell 1964-11-19 San Mateo State Highway 1 & Whitehouse Ranch Road, Pescadero. 0 Comment
  UCR12092  Tragopogon porrifolius Coleta A. Lawler 1964-4-19 50 San Mateo Skyline Blvd. 1.1 mi south of junction with College St. Near power line station, c. 5 mi west of Burlingame Comment
  UCSB9321  Tragopogon porrifolius J. R. Haller 1950-4-26 193 San Mateo collected in the hillside W of Fraternity Row, in U C S U C S Comment
  JROH3391  Trientalis latifolia John H. Thomas 1973-5-5 16764 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176743  Trientalis latifolia John H. Thomas 1961-5-5 9215 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  JEPS65852  Trifolium albopurpureum var. dichotomum J. Burtt Davy 1895-4-20 1068 San Mateo Crystal Springs Lake Comment
  UC165514  Trifolium albopurpureum var. dichotomum J. Burtt Davy 1893-6-22 San Mateo Lake Pilarcitos Comment
  SJSU7966  Trifolium amplectens var. stenophyllum E. C. Garbett 1960-4-13 92 San Mateo W of Skyline Blvd, 3 mi N of its junction with Page Mill Rd Comment
  JEPS128163  Trifolium angustifolium Eric Wrubel 2012-7-1 NPS 43 San Mateo Golden Gate National Recreation Area. Rancho Corral de Tierra, Spine Trail. Comment
  JROH2243  Trifolium barbigerum John Hunter Thomas 1986-4-18 23957 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM88143  Trifolium bifidum L. R. Abrams 1902-5-20 2470 San Mateo Kings Mountain Comment
  UCD107892  Trifolium bifidum Michael A. Vincent; Ethan H. Freid 1998-4-9 8201 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
  JROH2252  Trifolium bifidum var. decipiens John H. Thomas 1964-4-19 10317 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville end of ridge Comment
  JROH2255  Trifolium campestre John Rawlings 2011-5-3 1076 San Mateo Jasper Ridge Biological Preserve, Stanford University; grassy verge of Trail 10 opposite upper end of wet meadow 183 Comment
  RSA120981  Trifolium ciliolatum W. R. Dudley 1904-4-23 s.n. San Mateo Lower part Goat Ranch Road. Comment
  SEINET12157184  Trifolium ciliolatum Unknown 1932-1 9015 San Mateo Los Francos Woods Comment
  JROH2230  Trifolium dichotomum John H. Thomas 1964-4-19 10319 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2310  Trifolium fucatum John Hunter Thomas 1992-5-5 25214 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1130024  Trifolium fucatum H. S. Yates 1935-5-8 5226 San Mateo 1 mi e Franklin Point; Santa Crus quad 15 Comment
  JROH2333  Trifolium hirtum John Hunter Thomas 1991-5-28 25066 San Mateo Jasper Ridge Biological Preserve, Stanford University; on old beach Comment
  UCD111316  Trifolium macraei June McCaskill 1954-5-8 292 San Mateo Moss Beach. Comment
  POM20506  Trifolium macraei A. D. E. Elmer 1903-05 4713 San Mateo Lake Merced Comment
  UCSC006205  Trifolium macraei Randall Morgan 1996-5-18 2452 San Mateo Pacifica, Young plants transplanted from colony on Montara Mtn. Comment
  JROH2340  Trifolium oliganthum John H. Thomas 1968-4-19 14306 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5592  Trifolium oliganthum John Rawlings 2013-4-19 1165 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 11 in chaparral. 144 Comment
  SEINET5628487 Image available Trifolium olivaceum Unknown 1907-1 8554 San Mateo Back of San Mateo Comment
  JROH2367  Trifolium subterraneum John Hunter Thomas 1990-4-7 24802 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2380  Trifolium variegatum John H. Thomas 1968-4-19 14302 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC729682  Trifolium variegatum Carl B. Wolf 1929-4-24 3657 San Mateo sw end Jasser Ridge; back of Stanford University 152 Comment
  UCSC006359  Trifolium variegatum Randall Morgan 1995-6-6 2725 San Mateo Group at Bean Hollow State Beach 2.5 mi S of Pescadero Rd. Comment
  RSA119330  Trifolium variegatum var. variegatum S. S. Tillett, I. Sternbacback 1956-6-24 538 San Mateo Behind (n.) Portola Camp Store, just outside Portola State Park 396 Comment
  UCSC004602  Trifolium vesiculosum Randall Morgan 2004-4-16 4239 San Mateo Dejernosi property NW of Skylanda Comment
  JROH2399  Trifolium willdenovii John H. Thomas 1968-4-19 14297 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2412  Trifolium willdenovii John Hunter Thomas 1988-4-7 24379 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2415  Trifolium willdenovii John Hunter Thomas 1991-4-11 24985 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  POM18877  Trifolium willdenovii C. F. Baker 1903-4-8 1925 San Mateo San Andreas Lake Comment
  UC137718  Trifolium willdenovii C. F. B. 1902-4-4 451 San Mateo Crystal Springs Comment
  UC764667  Trifolium wormskioldii R. F. Hoover 1939-4-21 4056 San Mateo 2 mi s Colma Comment
  SD38499  Triglochin scilloides Delzie Demaree 1932-5-30 9189 San Mateo Lake Los Francos Woods. Comment
  CAS-BOT-BC401045  Trillium J. Lovelle 1926-8-1 39 San Mateo Mt. Ellen Trail Comment
  JROH4727  Trillium chloropetalum John H. Thomas 1974-4-6 17093 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4729  Trillium chloropetalum John H. Thomas 1977-4-21 18538 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1300919  Trillium chloropetalum Helen K. Sharsmith 1963-3-23 5246 San Mateo Alpine Creek Canyon Santa Cruz Mts., Alpine Creek Canyon 243 Comment
  UC142121  Trillium chloropetalum Michener and Bioletti March, 1893 San Mateo near Colma Comment
  HSC101806  Trillium chloropetalum Kjirsten A. Wayman, Brett Hall, Jim West 2012-3-23 303 San Mateo Gazos Creek Road, between Hwy 1 and Cloverdale Rd. N 37.17445 W 122.35336 3 Comment
  CAS-BOT-BC521006  Trillium chloropetalum var. chloropetalum Janet Jones 1981-1-17 s. n. San Mateo On south side of Montara Mountain, Montara Comment
  CAS-BOT-BC521066  Trillium chloropetalum var. giganteum Elizabeth McClintock 1965-4-11 s.n. San Mateo San Bruno Mountain: Mouth of Colma Canyon near Indian Head Rock Comment
  CAS-BOT-BC521208  Trillium chloropetalum var. giganteum Ira L. Wiggins 1928-4-14 2917 San Mateo Alpine Creek Road Comment
  CAS-BOT-BC133448  Trillium ovatum L. R. Abrams 1898-3-5 s.n. San Mateo Kings Mt. Comment
  POM169950  Trillium ovatum A. D. E. Elmer 1903-04 4752 San Mateo Portola. Comment
  UC672064  Trillium ovatum Herbert L. Mason 1927-4-23 3670 San Mateo La Honda Comment
  JROH1649  Triodanis biflora John Hunter Thomas 1979-6-12 19586 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC238553  Triphysaria floribunda Vincent Jones 1921-4-1 s.n. San Mateo San Bruno hills Comment
  CAS-BOT-BC238557  Triphysaria floribunda Walter Knight; Irja Knight 1965-4-24 1054 San Mateo San Bruno Mountain. Point San Bruno Comment
  CAS-BOT-BC238561  Triphysaria floribunda L. S. Rose 1927-5-1 s.n. San Mateo San Mateo Comment
  UC138991  Triphysaria floribunda C. F. Baker 1903-4-8 1926 San Mateo San Andreas Lake Comment
  UC27202  Triphysaria floribunda J. Burtt Davy 1895-4-20 1028 San Mateo Millbrae Comment
  SEINET7097919  Triphysaria versicolor 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
  SEINET7076094  Triphysaria versicolor subsp. faucibarbata A. G. Vestal 1955-5-31 s.n. San Mateo Near Pebble Beach off Route 1. (NAD 27; 37.2369? deg. North Latitude, 122.4153? deg. West Longitude, UTM Zone 10, 551863mE, 4121109mN). [GPS Coordinate: WGS84/NAD83]. Comment
  JROH5466  Trisetum canescens John H. Thomas 1967-5-12 12869 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC193501  Trisetum cernuum L. R. Abrams 1915-6-14 5561 San Mateo King's Mountain Road, first bridge. Comment
  JROH4736  Triteleia hyacinthina John H. Thomas 1963-5-12 10082 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4741  Triteleia hyacinthina John Hunter Thomas 1981-4-30 20519 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC521592  Triteleia hyacinthina George Oberlander 1950-5-6 932 San Mateo Baker Meadow, northwest San Andreas Lake Comment
  CAS-BOT-BC521593  Triteleia hyacinthina J. I. McMurphy 1906-5-8 s.n. San Mateo Road from Woodside to Crystal Springs Comment
  UCSB811  Triteleia hyacinthina Haller, John 1950-4-26 San Mateo 2 miles northwest of Stanford University, along road to woodside Comment
  CAS-BOT-BC526101  Triteleia ixioides subsp. ixioides L. R. Abrams 1907-8-26 s.n. San Mateo Kings Mountain Comment
  SJSU9940  Triteleia ixioides subsp. ixioides L. S. Chan 1955-6-4 117 San Mateo Kings Mt Rd, 1.5 mi W of Woodside, E slope Santa Cruz Mts 243 Comment
  CAS-BOT-BC526362  Triteleia laxa J. H. Thomas 1954-6-11 4291 San Mateo About 1 mile north of Pigeon Point 30 Comment
  CAS-BOT-BC526363  Triteleia laxa John H. Thomas 1971-5-2 15847 San Mateo Near intersection of Canada and Edgewater Roads, about 4 miles SW of center of Redwood City 304 Comment
  CAS-BOT-BC526367  Triteleia laxa David D. Keck 1932-5-6 1466 San Mateo Belmont Comment
  CAS-BOT-BC212678  Ulex europaeus John H. Thomas 1974-5-7 17312 San Mateo San Bruno Mountain, norther part opf county. Near the Radio Broadcast Towers near summit. Comment
  POM349815  Ulex europaeus Glenn A. Gorelick 1967-4-20 s.n. San Mateo Overlooking Daly City, near San Francisco. Comment
  RSA625696  Ulex europaeus Don Pendleton 1993-11-20 s.n. San Mateo Daly City at 222 Hickey Boulevard Comment
  UCSB26557  Ulex europaeus Havlik, Neil 1969-3-27 San Mateo North side of San Bruno Mountain, near the junction of Radio Road and Guadalupe Road Comment
  RSA78564  Ulex europaeus Philip A. Munz 1953-2-1 18274 San Mateo North of Scott Valley. Comment
  CAS-BOT-BC73689  Ulmus parvifolia John Thomas Howell 1966-7-24 41997 San Mateo Burlingame - in flower beds near planed trees, Trousdale Ave. just west of El Camino Real. Comment
  CAS-BOT-BC91222  Umbellularia californica William R. Dudley 1894-12-3 s.n. San Mateo Near Searsville and San Fracisquito Creek opposite the Residence. Comment
  CAS-BOT-BC91225  Umbellularia californica Elizabeth McClintock 1966-9-29 s.n. San Mateo San Bruno Mountains. In a canyon adjacent to northwestern edge of Brisbane. 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
  CAS-BOT-BC91229  Umbellularia californica George Oberlander 1949-4-9 38 San Mateo San Francisco Watershed Reserve. East side draw of Sawyer Ridge. Comment
  RSA15340  Umbellularia californica C. B. Wolf 1927-2-5 151 San Mateo Pilarcitos Lake Comment
  UC1244713  Umbellularia californica John H. Thomas 1959-8-22 8081 San Mateo 5 mi sw of Palo Alto (Jasper Ridge); Jasper Ridge 152 Comment
  JROH1292  Uropappus lindleyi John Hunter Thomas 1986-5-6 24013 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1295  Uropappus lindleyi John Hunter Thomas 1988-5-3 24443 San Mateo Jasper Ridge Biological Preserve, Stanford University; powerline draw Comment
  SEINET12026865  Urtica dioica Unknown 1932-1 9154 San Mateo Sky Line Drive Comment
  CAS-BOT-BC403968  Urtica dioica subsp. gracilis L. R. Abrams 1909-8-1 4246 San Mateo Santa Cruz Peninsula. Between La Honda and Pescadero Comment
  CAS-BOT-BC412536  Urtica urens John H. Thomas 1968-12-18 14870 San Mateo About 1 mile west of Pescadero toward the coast Comment
  CAS-BOT-BC199365  Vaccinium ovatum Elizabeth McClintock 1966-5-1 s.n. San Mateo Kamchatka Point Comment
  HSC98190  Vaccinium ovatum L. S. Rose 1969-3-27 69007 San Mateo Kings Mountain Road, 4 mi. W of Woodside 305 Comment
  POM222793  Vaccinium ovatum S. S. Berry 1909-3-13 s.n. San Mateo San Mateo Comment
  RSA187267  Vaccinium ovatum W. R. Dudley 1898-3-5 s.n. San Mateo King's Mountain. Comment
  RSA471163  Vaccinium ovatum L. S. Rose 1938-2-23 38084 San Mateo Kings Mountain. 640 Comment
  RSA471170  Vaccinium ovatum L. H. Jones 1909-3-3 s.n. San Mateo Summit of King's Mountain, Stanford University. 732 Comment
Read comments
Sep 22 2011
  SJSU11091  Vaccinium ovatum S. H. Casey 1969-5-18 260 San Mateo near summit San Bruno Mt Comment
  JEPS90930  Vaccinium ovatum var. ovatum Dean W. Taylor 1988-4-29 9587 San Mateo n slope of San Bruno Mountain 0.3 mi n(22d)w of summit, summit of small hill (local botaniceal placename of Kamchatka Point), Santa Cruz Mountains San Bruno Mountain; Santa Cruz Mountains, San Bruno Mountain 371 Comment
  CAS-BOT-BC199465  Vaccinium parvifolium A. D. E. Elmer 1903-5-1 4924 San Mateo Butano Creek Comment
  RSA112361  Vaccinium parvifolium W. R. Dudley 1895-9-15 s.n. San Mateo El Corte de Madera, west side., Santa Cruz Range. Comment
  CAS-BOT-BC76142  Vancouveria planipetala W. R. Dudley 1905-6-12 s.n. San Mateo Santa Cruz Mountain Peninsula. Road beyond Iverson's near Pescadero Creek. Comment
  CAS-BOT-BC76147  Vancouveria planipetala W. R. Dudley 1903-5-2 s.n. San Mateo Santa Cruz Peninsula. Pescadero Creek near Iverson's. Comment
  CAS-BOT-BC76145  Vancouveria planipetala W. R. Dudley 1895-6-6 s.n. San Mateo Santa Cruz Peninsula. By road this side of Iverson's near Peter's Creek. Comment
  POM149207  Vancouveria planipetala E. B. Copeland 1903-5-9 3051 San Mateo Big Basin. Comment
  JROH4278  Verbena lasiostachys var. scabrida John Hunter Thomas 1981-9-24 20742 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC770046  Verbena lasiostachys var. scabrida L. W. Reinecke 1939-6-13 San Mateo field by Saphire St Redwood City Comment
  POM64686  Verbena robusta A. D. E. Elmer 1903-07 4950 San Mateo Crystal Springs Lake. Comment
  JROH4153  Veronica persica John H. Thomas 1969-4-12 14889 San Mateo Jasper Ridge Biological Preserve, Stanford University; picnic area below dam Comment
  RSA100980  Vicia americana var. americana G. Oberlander 1949-4-30 122 San Mateo Cahill Ridge, San Francisco Watershed Reserve. Comment
  RSA128477  Vicia americana var. americana Peter H. Raven 1950-4-30 1958 San Mateo Montara 15 Comment
  SEINET2064196  Vicia nigricans subsp. gigantea C. W. Sharsmith 1947-4-13 6750 San Mateo Summit of seaward border of coastal bluff, Pescadero Beach, near Pescadero Point Comment
  SD227823  Vicia sativa G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3749 San Mateo Portola Valley: Golden Hills Rd along Los Trancos Creek. 106 Comment
  UC1191599  Vicia sativa Malcolm A. Nobs and S. Galen Smith 1949-8-25 1547 San Mateo Sharp Park; marshes at Sharp Park Comment
  JROH2438  Vicia sativa subsp. nigra John Hunter Thomas 1982-4-28 20867 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2434  Vicia sativa subsp. nigra John H. Thomas 1971-4-3 15744 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2445  Vicia sativa subsp. sativa John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2442  Vicia sativa subsp. sativa John H. Thomas 1973-6-10 16825 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5827  Vicia tetrasperma Ann Lambrecht 2012-6-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; ~ 50 meters north of Preserve main gate between roads H and C (Sector 29 E1 or E2) 118 Comment
  JEPS81151  Vicia villosa Edward Lee with H. L. Mason 1935-6-16 1527 San Mateo between Ano Nuevo and Franklin Point Comment
  CAS-BOT-BC264045  Viola adunca Miss E. Cannon 1899-4-21 s.n. San Mateo E of Colma Comment
  JEPS50208  Viola adunca W. I. Follett 1934-2-18 1 San Mateo 4 mi n of Pigeon Point (from a point beside the main highway) Comment
  CAS-BOT-BC536828  Viola glabella Roxana S. Ferris 1921-3-20 2110 San Mateo Santa Cruz Mountain Peninsula: Pescadero Creek in canon 6 mi above Pescadero Comment
  CAS-BOT-BC536831  Viola glabella unspecified no date on label s.n. San Mateo San Gregorio (Redwood) Comment
  POM190256  Viola ocellata D. D. Keck 1932-6-1 1495 San Mateo Above Woodside on La Honda road, east slope of Santa Cruz Mtns. Comment
  RSA101046  Viola ocellata G. Oberlander 1949-7-30 353 San Mateo On Cahill Ridge, San Francisco Watershed Reserve. Comment
  RSA412721  Viola pedunculata L. S. Rose 1941-3-20 41047 San Mateo Milbrae. 122