Search Results — 2000 specimen records retrieved (1347 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
  CAS-BOT-BC383896  Abronia latifolia J. H. Thomas 1954-4-3 3830 San Mateo Dunes Beach, about 1.5 miles NW of Half Moon Bay. Altitude about sea level Comment
  SEINET946036  Abronia latifolia C. F. Baker 1902-1 1741 San Mateo Piller Point. Comment
Read comments
Nov 1 2021
  SD41440  Abronia umbellata Edith A. Purer 1934-8-14 5915 San Mateo Half Moon Bay. Comment
  JEPS83041  Acaena pinnatifida var. californica Roy E. Buck, Randall A. Morgan, and James A. West 1983-7-15 433 San Mateo ca. 3.2 km. n.w. of Pilarcitos Dam (and 2.4 km. w.-s.w. of San Andreas Dam, along crest of Fifield Ridge, w. of gravel rd.); San Francisco Watershed Reserve 388 Comment
  CAS-BOT-BC451120  Acaena pinnatifida var. californica W. R. Dudley 1901-5-11 s.n. San Mateo Near Colma; Santa Cruz Peninsula Comment
  RSA51240  Acaena pinnatifida var. californica Peter H. Raven 1950-4-16 1795 San Mateo Colma Canyon, San Bruno Mountains. 183 Comment
  CAS-BOT-BC219606  Acanthomintha duttonii D. K. Gillespie 1930-4-21 9220 San Mateo Emerald Lake near Redwood City Comment
  CAS-BOT-BC219611  Acanthomintha duttonii Lewis S. Rose 1933-5-17 33171 San Mateo Redwood City Comment
  JEPS70085  Acanthomintha duttonii L. R. Heckard and J. H. Thomas 1972-4-16 2903 San Mateo Upper Crystal Springs Reservoir, below and w of State Hwy interchange Upper Crystal Springs Reservoir Comment
  SD4349  Acanthomintha obovata Harry A. dutton, H. A. Walker May 26 & 29, 1915 3819 San Mateo Near the Menlo Golf Club. Found on a small area in sandy soil, on a hillside sloping to the south. Comment
  RSA0076539  Acanthomintha obovata subsp. duttonii Paul R. Hichborn 1920-6-1 s.n. San Mateo Back of Redwood City. Comment
  CAS-BOT-BC333294  Acer macrophyllum Josephine D. Randall 1906-3-1 1 San Mateo Santa Cruz Peninsula, San Francisquito Creek near Stanford Univ. Comment
  JROH158  Acer macrophyllum John H. Thomas 1975-6-5 17948 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Searsville Dam 91 Comment
  RSA131268  Acer macrophyllum Josephine Randall 1906-03 s.n. San Mateo San Francisquito Creek near Stanford University Comment
Read comments
Sep 18 2013
  SEINET4068107 Image available Acer macrophyllum D. Demaree 1932-1 8984 San Mateo Near Isov. Rolph Estates. P.O. Palo Alto. Comment
  JROH168  Acer negundo John H. Thomas 1968-3-17 14175 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake 106 Comment
  CAS-BOT-BC21586  Achillea millefolium Fred Hemphill 1973-5-14 807 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  JROH447  Achillea millefolium John Hunter Thomas 1980-5-8 19954 San Mateo Jasper Ridge Biological Preserve, Stanford University 124 Comment
  JROH450  Achillea millefolium John Hunter Thomas 1986-5-6 24016 San Mateo Jasper Ridge Biological Preserve, Stanford University 181 Comment
  UC1084379  Achillea millefolium G. Thomas Robbins 1937-4-11 76 San Mateo south of, along Skyline Blvd. San Francisco Comment
  HSC23987  Achillea millefolium Mary Katherine Wicksten 1971-6-24 109 San Mateo Huddart Park, side of park entrance Comment
  JROH456  Achyrachaena mollis John H. Thomas 1955-5-6 4981 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH459  Achyrachaena mollis John H. Thomas 1963-5-12 10079 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH460  Achyrachaena mollis John H. Thomas 1966-4-24 11583 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH466  Achyrachaena mollis John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH469  Achyrachaena mollis John Hunter Thomas 1981-5-8 20561 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176744  Achyrachaena mollis John H. Thomas 1963-5-12 10079 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  UCSB17226  Achyrachaena mollis Schulte, John 1963-4-27 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mounatins 152 Comment
  JROH2066  Acmispon americanus var. americanus John Hunter Thomas 1992-7-24 25393 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD37934  Acmispon brachycarpus Cummings, McCallum 1933-5-10 3697 San Mateo Hill on back of of Stanford campus. Comment
  JROH2072  Acmispon glaber var. glaber John Hunter Thomas 1981-5-14 20575 San Mateo Jasper Ridge Biological Preserve, Stanford University 156 Comment
  JROH2096  Acmispon wrangelianus John H. Thomas 1970-4-29 15617 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2102  Acmispon wrangelianus John Hunter Thomas 1978-4-25 19152 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC391678  Actaea rubra Margaret A. Barry 1937-7-17 197 San Mateo On Coal Mine Ridge Comment
  SEINET8382562  Adelinia grandis L. E. Detling 1933-3-30 1121 San Mateo Skyline Blvd; [State Highway 35]. Comment
  CAS-BOT-BC139955  Adenostoma fasciculatum John H. Thomas 1971-5-2 15864 San Mateo Near intersection of Canada and Edgewater {Edgewood] roads, about 4 miles SW of center of Redwood City 304 Comment
  LA27800  Adenostoma fasciculatum L. S. Rose; 1941-6-12 41270 San Mateo Rocky ridges, Emerald lake, hills W. of Redwood City 120.0 Comment
  JROH3586  Adenostoma fasciculatum var. fasciculatum John H. Thomas 1974-8-3 17591 San Mateo Jasper Ridge Biological Preserve, Stanford University 137 Comment
  RSA112393  Adenostoma fasciculatum var. fasciculatum W. R. Dudley 1895-6-14 s.n. San Mateo Top of ridge near Searsville Dam. Comment
  RSA85065  Adenostoma fasciculatum var. fasciculatum D. D. Keck 1932-5-25 1781 San Mateo Hills 2 miles W of Belmont Comment
  RSA0030869  Adiantum jordanii Deb Annuschka 1989-8-4 337 San Mateo Isenberg Ranch. Comment
  CAS-BOT-BC202669  Aesculus californica A. D. E. Elmer 1903-6-1 4258 San Mateo Crystal Springs Lake Comment
  UC29397  Agoseris apargioides var. apargioides F. P. McLean 1873-6-1 San Mateo Searsville Comment
Read comments
Oct 8 2006
  CAS-BOT-BC23024  Agoseris grandiflora var. grandiflora A. D. E. Elmer 1903-4-1 4490 San Mateo Crystal Springs Lake Comment
  JROH481  Agoseris grandiflora var. grandiflora John H. Thomas 1971-5-30 15976 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC15226  Agoseris hirsuta W. R. Dudley 1896-4-17 s.n. San Mateo Near Pebble Beach, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC15235  Agoseris hirsuta David D. Keck 1932-5-6 1461 San Mateo near Belmont Comment
  CAS-BOT-BC15232  Agoseris hirsuta W. R. Dudley 1893-5-1 s.n. San Mateo North of San Bruno Comment
  CAS-BOT-BC376133  Agrostis Ricardo Villasenor, Jr. 1993-7-1 s.n. San Mateo San Francisco International Airport, west of Hwy. 101 Comment
  JROH4772  Agrostis avenacea John Hunter Thomas 1980-9-27 20197 San Mateo Jasper Ridge Biological Preserve, Stanford University; old bathing beach area in weeds near water's edge 120 Comment
  UCSC008505  Agrostis blasdalei Randall Morgan 2013-5-24 5528 San Mateo Bean Hollow State Beach, about 100 m up trail from parking lot Comment
  UC143951  Agrostis densiflora Dr. E. B. Copeland 1903-8-13 3308 San Mateo Montara Point Comment
Read comments
Nov 29 2009
  UC1100234  Agrostis exarata Malcolm A. Nobs, S. Galen Smith 1949-8-26 1612 San Mateo ca 1 mi s Pigeon Point Comment
  UC1100235  Agrostis exarata Malcolm A. Nobs, S. Galen Smith 1949-8-25 1562 San Mateo marshes at Sharp Park Comment
  UC36879  Agrostis exarata Michener and Bioletti 1893-6-15 134 San Mateo Baden Comment
  CAS-BOT-BC139461  Agrostis hallii Margaret A. Barry 1937-6-22 177 San Mateo Coal Mine Ridge. Comment
  CAS-BOT-BC139464  Agrostis hallii Walter Knight; Irja Knight 1965-6-20 s.n. San Mateo San Bruno Mountain. In Crystal Cave Canyon. Comment
  JROH4796  Agrostis microphylla A. G. Vestal 1923-5-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA119335  Agrostis microphylla S. S. Tillett, I. Sternback 1956-6-25 545 San Mateo On Middleton property S of road to Portola State Park, just before entrance; in secondary redwood forest. 396 Comment
  CAS-BOT-BC138952  Agrostis pallens Phillip Wheeler 1965-6-8 s.n. San Mateo San Bruno Mountain. Quarry Road. Comment
  CAS-BOT-BC138976  Agrostis pallens A. D. E. Elmer 1903-6-1 4264 San Mateo Alpine School House. Comment
  JROH4800  Agrostis pallens John Rawlings 2010-6-23 0989 San Mateo Jasper Ridge Biological Preserve, Stanford University; between old well and Escobar Gate on Trail 2 extension 121 Comment
  SJSU15959  Agrostis pallens John Rawlings, Ken Hickman 2016-5-26 1835 B 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
  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
  JROH4805  Agrostis stolonifera Toni Corelli 2006-9-20 339 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Trail 12, upper embankment just above Corte Madera Creek. 108 Comment
  JROH4824  Aira caryophyllea John H. Thomas 1966-4-22 11570 San Mateo Jasper Ridge Biological Preserve, Stanford University 170 Comment
  RSA159442  Aira caryophyllea John H. Thomas 1961-5-23 9455 San Mateo Portola State Park, near junction of Peters and Pescadero Creeks. 152 Comment
  RSA87687  Aira caryophyllea Le Roy Abrams 1902-5-4 2405 San Mateo Woodside. Comment
  SEINET3917559  Aira caryophyllea Robert A. Norris 1984-3-21 4652 San Mateo W-facing slope, Blue blossom HIll, san Bruno Mts.; 0 357 Comment
  CAS-BOT-BC138235  Aira caryophyllea var. caryophyllea Elizabeth McClintock 1964-4-17 s.n. San Mateo San Bruno Mountain. Slope on top of mountain. Comment
  CAS-BOT-BC138242  Aira caryophyllea var. caryophyllea John H. Thomas 1955-4-6 4845 San Mateo San Bruno Mountain just north of South San Francisco. 91 Comment
  CAS-BOT-BC138249  Aira caryophyllea var. caryophyllea John H. Thomas 1958-3-19 7050 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 91 Comment
  SJSU15968  Aira praecox John Rawlings, Toni Corelli 2016-5-27 1848 San Mateo Bean Hollow bluff trail, west of Hwy 1 south of Pescadero 8 Comment
  JROH4302  Alisma triviale Toni Corelli 2005-8-10 301 San Mateo Jasper Ridge Biological Preserve, Stanford University; offshoot of main creek in wet area along new bridge near beginning of trail 12 109 Comment
  JROH4303  Alisma triviale Carol Zabel 2006-4-19 56 San Mateo Jasper Ridge Biological Preserve, Stanford University; off first bridge on Trail 12 (end of Road E), northeast side of bridge Comment
  JROH5959  Allium amplectens John Rawlings 2017-6-6 2100 San Mateo Jasper Ridge Biological Preserve, Stanford University; rocky serpentine near ridge crest at NW terminus of Serpentine prairie (Area C). 177 Comment
  CAS-BOT-BC467297  Allium dichlamydeum Hester R. Davis 1920-6-1 s.n. San Mateo Serpentine Creek of Redwood City Comment
  CAS-BOT-BC467298  Allium dichlamydeum Barrett Anderson; Peter Rubtzoff 1988-4-26 3675 San Mateo San Bruno Mountain. Radio Road south of Guadalupe Parkway. 365 Comment
  SEINET8534224 Image available Allium dichlamydeum A. A. Heller 1907-5-23 8564 San Mateo Back of San Mateo on the Half Moon Bay road. Comment
  JROH4551  Allium falcifolium John H. Thomas 1968-5-3 14440 San Mateo Jasper Ridge Biological Preserve, Stanford University. North side of ridge in grasslands Comment
  POM169881  Allium falcifolium A. D. E. Elmer 1903-06 4831 San Mateo Crystal Springs Lake. Comment
  RSA40253  Allium falcifolium L. S. Rose 1948-5-16 48111 San Mateo Emerald Lake, west of Redwood City. 152 Comment
  UC306609  Allium falcifolium A. D. E. Elmer June, 1903 4831 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC469033  Allium falcifolium G. C. Kimber; Lucile Roush 1918-4-11 s.n. San Mateo Jasper Ridge; Santa Cruz Mountain Peninsula Comment
  SEINET12043965  Allium falcifolium L. S. Rose 1933-1 33177 San Mateo Crystal Springs Lake Comment
  UCD138520  Allium falcifolium R. E. Dengler 1960-4-12 28 San Mateo Jasper Ridge, Stanford Biological Reserve. 190 Comment
  UC615425  Allium peninsulare var. franciscanum Beryl O. Schreiber 1932-5-29 309 San Mateo Spring Valley Water Company Road Comment
  CAS-BOT-BC475449  Allium serra Ned Cahill 1974-5-13 246 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CDA33772  Allium triquetrum D. G. Kelch 2011-3-13 11 .046 San Mateo Pacifica. Along sea bluffs Comment
  JROH4562  Allium triquetrum John Rawlings, Toni Corelli 2012-5-15 1122 San Mateo Jasper Ridge Biological Preserve, Stanford University. West bank of Bear Creek at its crossing of Road H near boundary fence. 82 Comment
  JROH4563  Allium unifolium Toni Corelli 2011-5-3 368 San Mateo Jasper Ridge Biological Preserve, Stanford University. South of Trail 9 in serpentine swale 185 Comment
  CAS-BOT-BC474307  Allium unifolium R. S. Ferris 1921-5-29 2183 San Mateo New Years Pt. Comment
  SEINET5626583 Image available Allocarya chorisiana Unknown 1907-1 8439 San Mateo Near Lake Merced Comment
  POM281274  Alnus rhombifolia Lyman Benson 1928-11-25 786 San Mateo Searsville Lake Dam. San Francisco Bay Watershed. 91 Comment
  CAS-BOT-BC169340  Alnus rubra L. R. Abrams 1907-8-1 s.n. San Mateo near Pescadero on road to Half Moon Bay. Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC137916  Alopecurus saccatus James McMurphy 1906-5-8 s.n. San Mateo Pond near head of Crystal Springs Lakes. 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
  RSA22216  Amaranthus powellii J. T. Howell 1938-5-1 13772 San Mateo Colma Canyon Comment
  UCD97767  Amaranthus retroflexus John Thomas Howell 1978-7-18 53187 San Mateo McClellan residence, 1356 Bernal Ave., Burlingame. Comment
  SJSU15405  Amaranthus spinosus Toni Corelli 2011-8-25 710 San Mateo Ano Nuevo State Park, along Hwy. 1 south of main entrance 29 Comment
  JROH4576  Amaryllis belladonna Toni Corelli 2011-10-4 374 San Mateo Jasper Ridge Biological Preserve, Stanford University. Disturbed area below Douglas' iris site 89 Comment
  OBI49178  Ambrosia chamissonis Lewis S. Rose 1938-8-14 38226 San Mateo El Granada 3 Comment
  SEINET11855119  Ambrosia chamissonis E. H. Graham 1931-1 6941 San Mateo Ano Nuevo Pt. S of San Francisco Comment
  POM87791  Ambrosia psilostachya L. R. Abrams 1902-9-21 2992 San Mateo Crystal Lake between the Mts. Comment
  CAS-BOT-BC136831  Amelanchier utahensis Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC136834  Amelanchier utahensis A. D. E. Elmer 1903-5-1 4659 San Mateo [Slates] Slate Creek (Pescadero) Comment
  JROH5617  Amelanchier utahensis Ann Lambrecht 2014-4-29 49 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 14, about midway between dam and road C. 98 Comment
  CAS-BOT-BC214047  Amsinckia Lewis S. Rose 1933-5-17 33174 San Mateo Redwood City Comment
  CAS-BOT-BC214048  Amsinckia Lewis S. Rose 1933-5-17 33174 A San Mateo Redwood City Comment
  JROH1337  Amsinckia intermedia John H. Thomas 1964-4-19 10324 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  UC1178221  Amsinckia lunaris Gene B. Newcomb 1953-5-20 116 San Mateo 1.7 mi below junction to Skyline (opposite gravel pit, Road w of San Mateo City to Skyline Blvd, (Hillsborough)) Comment
  JROH1350  Amsinckia menziesii John Hunter Thomas 1987-4-4 24169 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Dam Comment
  JROH1355  Amsinckia menziesii John Hunter Thomas 1992-4-23 25162 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  UCSC007718  Anagallis arvensis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC45187  Anaphalis margaritacea Walter Knight; Irja Knight 1964-3-15 576 San Mateo San Bruno Mountain, Colusa Canyon Comment
  CAS-BOT-BC45188  Anaphalis margaritacea Rimo Bacigalupi 1941-10-22 2736 San Mateo 1/4 mile back from ocean strand close to San Francisco-San Mateo County line. Comment
  CAS-BOT-BC221457  Angelica hendersonii Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Quarry 3 Comment
  UC648294  Angelica hendersonii Alice Eastwood, John Thomas Howell 1939-7-9 7441 San Mateo e of La Honda (Skyline Boulevard); Skyline Boulevard Comment
  JROH192  Angelica tomentosa John Hunter Thomas 1989-6-17 24776 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC830895  Anisocarpus madioides Lewis S. Rose 1941-7-2 41287 San Mateo Kings Mountain 548 Comment
  HSC24049  Anisocarpus madioides Mary Katherine Wicksten 1971-6-16 36 San Mateo Bank at Huddart Park, by Werder Flat Comment
  JROH502  Anthemis cotula John H. Thomas 1977-6-16 18757 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old racing oval Comment
  CAS-BOT-BC280638  Anthoxanthum occidentale L. R. A. 1902-1-7 2258 San Mateo Kings Mountain Comment
  JROH194  Anthriscus caucalis John H. Thomas 1967-5-31 12921 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH197  Anthriscus caucalis John H. Thomas 1973-4-20 16580 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH202  Anthriscus caucalis John Hunter Thomas 1981-4-21 20456 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC454483  Aphanes occidentalis John H. Thomas 1955-4-6 4847 San Mateo East facing slope of San Bruno Mountain just north of South San Francisco. 91 Comment
  CAS-BOT-BC454490  Aphanes occidentalis Margaret A. Barry 1937-5-8 68 San Mateo Exposed Slopes of Coal Mine Ridge Comment
  UCSC007720  Aquilegia formosa Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC17317  Arabis blepharophylla Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountains. Cable Ravine. Comment
  CAS-BOT-BC17336  Arabis blepharophylla Reed Clark Rollins 1942-4-30 3006 San Mateo Southeast slope of the San Bruno Hills about 1 mile west of Brisbane. Comment
  JEPS90202  Arabis blepharophylla Dean W. Taylor 1989-3-30 10187 San Mateo crest of ne ridge of San Bruno Mountain ((ridge separating Guadalupe Valley from Vistacion Valley), Right-of-way of eastern-most set of PG&E high-voltage powerlines crossing mtn); Santa Cruz Mountains, San Bruno Mountain Comment
  CAS-BOT-BC17325  Arabis blepharophylla W. R. Dudley 1900-3-18 s.n. San Mateo Santa Cruz Peninsula. 1st high hill between Salado Valley and Colma. Comment
  SEINET11989294  Arctostaphylos S. W. Edwards 1982-1 s.n. San Mateo Foothill Park Comment
  CAS-BOT-BC24171  Arctostaphylos andersonii Gary D. Wallace 1974-12-28 1375 San Mateo Northern Santa Cruz Mtns. S of Upper Crystal Springs Res. along Skyline Blvd. 2.8 mimi N of jct. of King Mtn. Rd. oppos 640 Comment
  CAS-BOT-BC24174  Arctostaphylos andersonii Roxania Strichfield 1914-2-28 33 San Mateo Portola Rd. Comment
  SBBG25382  Arctostaphylos andersonii R. Gankin 1959-3-22 324 San Mateo King's Mtn Rd, 1.2 mi E of jct with St Hwy 5, ca. 5 mi W of Woodside Comment
  CAS-BOT-BC24169  Arctostaphylos andersonii W. R. Dudley 1902-6-1 s.n. San Mateo Woods between grenson's and moore's near Black Mt. Comment
  SEINET11988251  Arctostaphylos andersonii Unknown 1959-1 324 San Mateo 1.2 mi from junction of CA 5 on Kings Mt. Road Comment
  JROH1922  Arctostaphylos canescens subsp. canescens L. R. Abrams 1910-8-14 4990 San Mateo Jasper Ridge, near Stanford University Comment
  CAS-BOT-BC23506  Arctostaphylos crustacea W. R. Dudley 1893-4-1 s.n. San Mateo Hills back of the McDonough Ranch near Portola. Comment
  CAS-BOT-BC27247  Arctostaphylos crustacea Mr. A. Seale; Mrs. A. Seale 1922-4-2 s.n. San Mateo King's Mt. Comment
  RSA26358  Arctostaphylos crustacea E. K. Balls, Percy C. Everett 1953-10-16 18682 San Mateo Hwy 5, 30.8 mi SE of San Francisco-San Mateo Co. line. 762 Comment
  SEINET2030220 Image available Arctostaphylos crustacea L. S. Rose 1942-3-30 42007 San Mateo Kings Mountain. Type locality 600 Comment
  JROH1935  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1975-1-18 17675 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville end of ridge Comment
  JROH1942  Arctostaphylos crustacea subsp. crustacea John Hunter Thomas 1983-7-20 22893 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1943  Arctostaphylos crustacea subsp. crustacea John Hunter Thomas 1987-4-30 24210 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5915  Arctostaphylos crustacea subsp. crustacea John Rawlings 2017-1-25 1956 San Mateo Jasper Ridge Biological Preserve, Stanford University; north side of Road F, 49 m south of its intersection with roads D and E Comment
  UCD144585  Arctostaphylos crustacea subsp. crustacea Greg Escoto 2014-2-21 s.n. San Mateo San Pedro Valley Park, a county park located at 600 Oddstad Blvd. Along Hazelnut Trail. 152 Comment
  SEINET11988234  Arctostaphylos glandulosa W. Knight, Raiche, R. 1982-1 4417 San Mateo San Bruno Mountain, Buckeye Canyon on Oak Ridge 137 Comment
  CAS-BOT-BC24494  Arctostaphylos imbricata Marian L. Campbell 1915-2-15 s.n. San Mateo San Bruno Hills. Comment
  RSA632766  Arctostaphylos imbricata Jon E. Keeley 1996-6-24 27565 San Mateo On knob below end of paved road at top of San Bruno Mountain. 350 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
  CAS-BOT-BC40167  Arctostaphylos montaraensis Roman Gankin; W. R. Hildreth 1966-5-17 738 San Mateo Southeast-facing slope of Montara Mountain. Comment
  CAS-BOT-BC40168  Arctostaphylos montaraensis Arthur Menzies 1963-2-5 6 San Mateo San Bruno Mountain Comment
  RSA364238  Arctostaphylos montaraensis Walter Knight, P. V. Wells 1986-1-3 5373 San Mateo San Bruno Mountain 342 Comment
  SBBG83970  Arctostaphylos montaraensis R. Gankin 1966-5-17 740 b San Mateo Montara Mtn Comment
  UC486533  Arctostaphylos nummularia Mrs. H. P. Bracelin 1932-7-4 San Mateo e Pescadero; Butano Forest Comment
  CAS-BOT-BC39819  Arctostaphylos pacifica Arthur Menzies; Elizabeth McClintock 1963-2-16 s.n. San Mateo San Bruno Mountain - slope southeast of parking lot just below top of mountain. Comment
  RSA633499  Arctostaphylos pacifica Jon E. Keeley 1996-6-24 27573 San Mateo On knob below end of paved road at top of San Bruno Mountain. 350 Comment
  CAS-BOT-BC44702  Arctostaphylos regismontana A. D. E. Elmer 1903-3-1 4537 San Mateo Kings Mt. Comment
  CAS-BOT-BC44705  Arctostaphylos regismontana Lewis S. Rose 1932-1-16 3214 San Mateo Kings Mountain 640 Comment
  CAS-BOT-BC44734  Arctostaphylos regismontana Roman Gankin 1959-3-22 323 San Mateo Kings Mountain Road, 1.2 miles east of junction with State Highway 5, ca. 5 miles west of Woodside. Comment
  CAS-BOT-BC44748  Arctostaphylos regismontana W. R. Dudley 1902-5-17 s.n. San Mateo Near King's Mountain Road 457 Comment
  POM285164  Arctostaphylos regismontana Lyman Benson 1929-3-5 975 San Mateo Summit of Kings Mountain 762 Comment
  POM87727  Arctostaphylos regismontana L. R. Abrams 1902-1-12 2254 San Mateo Kings Mountain. Comment
  RSA119223  Arctostaphylos regismontana John H. Thomas 1954-2-13 3686 San Mateo Along Skyline Highway between Kings Mt. Road and La Honda Road. 609 Comment
  RSA141485  Arctostaphylos regismontana B. O. Schreiber 1938-10-16 2564 San Mateo On Kings Mountain. 609 Comment
  RSA1939  Arctostaphylos regismontana C. B. Wolf 1930-11-6 1067 San Mateo 2 mi N of Summit of Kings Mountain, Skyline Blvd. 640 Comment
  RSA380854  Arctostaphylos regismontana Roman Gankin 1966-5-17 740 A San Mateo slopes of Montara Mountain Comment
  RSA636747  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24627 San Mateo NW side of Montara Mtn. 150 Comment
  UC1120830  Arctostaphylos regismontana A. E. Wieslander and Beryl O. Schreiber 1940-3-5 3 San Mateo road from roadside King's Mt.; Santa Cruz Quadrangle 274 Comment
  UC1120832  Arctostaphylos regismontana A. E. Wieslander and B. O. Schreiber 1940-3-5 1 San Mateo near Woodside road to King's Mountain; Santa Cruz Quadrangle 182 Comment
  UC1120834  Arctostaphylos regismontana A. E. Wieslander and B. O. Schreiber 1940-3-5 9 San Mateo road from Woodside to King's Mt.; Santa Cruz Quadrangle 548 Comment
  UC311533  Arctostaphylos regismontana A. D. E. Elmer March 1903 4537 San Mateo King's Mountain Comment
  UC763116  Arctostaphylos regismontana R. F. Hoover 1939-3-3 3899 San Mateo Kings Mountain Comment
  RSA29505  Arctostaphylos regismontana E. K. Balls, Percy C. Everett 1953-10-16 18678 San Mateo 27.3 mi SE of San Francisco- San Mateo Co. Line on Hwy 5. 670 Comment
  LA42311  Arctostaphylos tomentosa Lillian Lockwood; 1908-3-28 sn San Mateo Kings Mountain, near roadside 457 Comment
  CAS-BOT-BC47321  Arctostaphylos tomentosa Walter Knight; Irja Knight 1964-9-14 843 San Mateo Peak Mountain, ca. 1 mi. w. of summit. Comment
  JEPS48592  Arctostaphylos tomentosa subsp. crustacea James G. Daly 1934-1 580 San Mateo San Gregorio watershed Santa Cruz Mts. Comment
  JEPS48594  Arctostaphylos tomentosa subsp. crustacea James G. Daly 1934-1 543 San Mateo San Gregorio watershed Santa Cruz Mts. (sw San Mateo Co.) Comment
  JEPS48595  Arctostaphylos tomentosa subsp. crustacea James G. Daly 1934-1 570 San Mateo San Gregorio watershed Santa Cruz Mts. (sw San Mateo Co.) Comment
  JEPS98865  Arctostaphylos tomentosa subsp. crustacea James B. Roof, Irja Knight 1964-9-14 San Mateo Montara Mountain, W summit Comment
  POM131770  Arctostaphylos tomentosa subsp. crustacea C. F. Baker 1902-5-10 817 San Mateo Kings Mountain. Comment
  RSA139987  Arctostaphylos tomentosa subsp. crustacea A. E. Wieslander 1929-3-19 46 San Mateo Kings Mt. Road, head of Peter's Creek. 701 Comment
  RSA636849  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24647 San Mateo NW side of Montara Mtn. 150 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
  RSA81913  Arctostaphylos tomentosa subsp. crustacea E. K. Balls, Percy C. Everett, B. K. Balls 1953-10-16 18680 San Mateo Hwy 5, 30.8 mi. s.e. of San Francisco - San Mateo Co. line. 762 Comment
  UC702542  Arctostaphylos tomentosa subsp. crustacea L. S. Rose 1942-3-30 42007 San Mateo Kings Mountain Kings Mountain (type locality) 600 Comment
  UC762228  Arctostaphylos tomentosa subsp. crustacea R. F. Hoover 1941-2-12 4763 San Mateo nw Saratoga Summit Comment
  UC762308  Arctostaphylos tomentosa subsp. crustacea R. F. Hoover 1941-2-12 4769 San Mateo Kings Mountain Comment
  POM367466  Arctostaphylos tomentosa subsp. tomentosiformis L. S. Rose 1949-3-18 49006 San Mateo Hills west of Belmont. 91 Comment
  CAS-BOT-BC46831  Arctostaphylos uva-ursi Arthur Menzies; Elizabeth McClintock 1963-2-16 s.n. San Mateo Slope southeast of parking lot below top of mountain Comment
  JEPS108605  Arctostaphylos uva-ursi Roger Raiche 1984-7-18 10153 San Mateo San Bruno Mountain, Kamchatka Point Comment
  POM305424  Armeria maritima subsp. californica Henry J. Ramsey, Henry J. Ramsey 1939-10-7 747 San Mateo San Mateo Comment
  UC877854  Armeria maritima subsp. californica Alice Eastwood 1915-6-13 4712 San Mateo Granada Comment
  POM190257  Arnica discoidea D. D. Keck 1932-5-11 1775 San Mateo East side of Kings Mountain, on Kings Mountain Road 350 Comment
  POM288964  Artemisia biennis Lyman Benson 1928-11-25 788 San Mateo Stanford Univ-- Lake Searsville. Santa Cruz Mts. 152 Comment
  CAS-BOT-BC84879  Artemisia californica Fred Hemphill 1973-4-15 651 San Mateo San Carlos - chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC84887  Artemisia californica Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain, burned area in Devil's Arroyo Comment
  UC1036426  Artemisia californica G. B. Rossbach 1955-7-26 616 San Mateo 3 mi s San Francisco City/County line (along Route 1); northern San Mateo County Comment
  OBI17042  Artemisia douglasiana Lewis S. Rose 1965-9-4 65101 San Mateo Skyline Blvd & Half Moon Bay rd, Cahill ridge 244 Comment
  HSC4721  Artemisia douglasiana L. S. Rose 1969-8-8 69090 San Mateo Skyline Blvd. and Half Moon Bay Rd; Cahill Ridge 244 Comment
  CAS-BOT-BC93879  Artemisia dracunculus W. R. Dudley 1897-11-12 s.n. San Mateo San Francisquito Creek below Los Trancas Creek Comment
  CAS-BOT-BC93636  Artemisia pycnocephala Elizabeth McClintock; Paul Reeberg 1989-4-23 s.n. San Mateo San Bruno Mountains - Reservoir Hill, west-facing slope 121 Comment
  UCD56052  Arundo donax Malcolm A. Nobs; S. Galen Smith 1949-8-25 1574 San Mateo South of Rockway Beach. Comment
  CAS-BOT-BC400509  Asarum caudatum Roxana S. Ferris 1920-4-26 1962 San Mateo Santa Cruz Mountain Peninsula. Near mouth of canyon of Pescadero Creek 243 Comment
  JROH430  Asclepias fascicularis John H. Thomas 1973-6-10 16826 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH436  Asclepias fascicularis John Hunter Thomas 1982-9-23 21161 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA417641  Aster chilensis D. D. Keck 1931-10-5 1282 San Mateo 1 mile north of Salada Beach 91 Comment
  RSA101026  Aster radulinus G. Oberlander 1949-7-10 364 San Mateo Sawyer Ridge, San Francisco Watershed Reserve Comment
  SEINET946258  Asteraceae L. S. Rose 1948-1 48236 San Mateo Hills W. of Belmont 183 Comment
  SEINET946308  Asteraceae C. B. Wolf 1934-1 6240 San Mateo Coastal bluff, 200 yds. South of Pigeon Pt. Lighthouse 15 Comment
  CAS-BOT-BC186767  Astragalus gambelianus James McMurphy 1906-5-8 s.n. San Mateo Head of Crystal Springs Lake Comment
  CAS-BOT-BC186751  Astragalus gambelianus W. R. Dudley 1894-4-21 s.n. San Mateo Below Crystal Springs Dam Comment
  CAS-BOT-BC186768  Astragalus gambelianus W. R. Dudley 1894-4-21 s.n. San Mateo Below Crystal Springs Dam Comment
  CAS-BOT-BC177965  Astragalus nuttallii var. virgatus John Thomas Howell; Alice Eastwood 1938-6-26 6063 San Mateo Arroyo de los Frijoles Comment
  CAS-BOT-BC194431  Astragalus nuttallii var. virgatus Phillip C. Wheeler 1965-8-16 s.n. San Mateo The great Meadow adjacent to Radio Road, San Bruno Mountain Comment
  RSA498284  Astragalus nuttallii var. virgatus E. A. Purer 1933-8-13 5405 San Mateo Santa Clara Valley near Baden Station. Comment
  CAS-BOT-BC193090  Astragalus pycnostachyus var. pycnostachyus C. F. B. 1902-10-1 1744 San Mateo Pillar Point Comment
  SBBG114454  Astragalus pycnostachyus var. pycnostachyus D. Wilken with E. Painter, M. Wetherwax 2000-7-29 15844 San Mateo dike at edge of freshwater marsh, 0.9 km ESE of mouth of Pescadero Crk estuary 10 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
  UC75368  Atriplex californica C. F. Baker 1902-10-1 1743 San Mateo Pillar Point Pillar Point (on banks along the coast) Comment
Read comments
Feb 2 2012
  CAS-BOT-BC172666  Atriplex lentiformis C. D. Duncan 1922-9-1 s.n. San Mateo Boncill Estate, Atherton Comment
  SEINET4135302  Atriplex leucophylla Lewis S. Rose 1941-9-27 41460 San Mateo Princeton, CA.; 0 2 Comment
  UC463561  Atriplex triangularis L. R. Abrams and I. L. Wiggins 1930-11-13 177 San Mateo junction of Skyline Blvd. and Coast Road near Colma; near Colma Comment
  CAS-BOT-BC146123  Avena barbata Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Above the quarry. Comment
  CAS-BOT-BC145956  Avena fatua George Oberlander 1950-4-23 862 San Mateo San Francisco Watershed Reserve. San Andreas Valley. Comment
  JROH4844  Avena fatua John Hunter Thomas 1984-4-24 23304 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD56091  Avena strigosa T. C. Fuller 1971-6-10 19879 San Mateo 1.6 km east of San Gregorio. Comment
  CAS-BOT-BC98692  Baccharis douglasii Le Roy Abrams 1901-9-1 2225 San Mateo Menlo Park Comment
  RSA18494  Baccharis douglasii C. B. Wolf 1927-7-14 626 San Mateo 1 mile west of summit of La Honda Grade Comment
  SEINET946129  Baccharis douglasii L. S. Rose 1946-1 46220 San Mateo Searsville Lake 69 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-BC99510  Baccharis pilularis C. F. B. 1902-10-1 1740 San Mateo Pillar Point Comment
  CAS-BOT-BC99526  Baccharis pilularis Fred Hemphill 1973-4-22 792 San Mateo San Carlos, area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC99535  Baccharis pilularis Louis F. Pitelka 1974-5-28 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  POM289736  Baccharis pilularis Lyman Benson 1934-12-15 6215 San Mateo Creek Hills; Santa Cruz Mt. Range; Corte Madera Creek Watershed 152 Comment
  RSA128829  Baccharis pilularis W. R. Dudley 1894-12-13 s.n. San Mateo Above Preston's, La Honda Road Comment
  RSA1947  Baccharis pilularis C. B. Wolf 1930-11-5 1063 San Mateo 4 mi. S of Pescadero. 8 Comment
  RSA2153  Baccharis pilularis C. B. Wolf 1931-5-6 1807 San Mateo 4 miles south of Pescadero 8 Comment
  UCR240609  Baccharis pilularis T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3527 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-BC16622  Barbarea orthoceras Fred Hemphill 1973-3-1 703 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC16625  Barbarea orthoceras Fred Hemphill 1973-3-17 712 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC16636  Barbarea orthoceras Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Sierra Point. Comment
  JEPS90454  Barbarea orthoceras Dean W. Taylor 1992-3-19 12336 San Mateo Montara Mt. in saddle just e. San Pedro Mt. (reached via old paved rd. from San Pedro Valley, along ridge at BM 924); Santa Cruz Mts., Montara Mt. 7 1/2 Quad. (1980) 274 Comment
  JROH1438  Barbarea orthoceras John H. Thomas 1966-4-22 11567 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1439  Barbarea orthoceras John H. Thomas 1967-4-20 12709 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1454  Barbarea orthoceras John Hunter Thomas 1989-4-20 24643 San Mateo Jasper Ridge Biological Preserve, Stanford University; to below the dam Comment
  SD113122  Barbarea orthoceras Darley F. Howe 1967-4-14 4476 San Mateo San Francisco Game Reserve near San Bruno. Comment
  UC10249  Barbarea orthoceras J. Burtt Davy June 21-23, 1893 1147 San Mateo Pilarcitos Lake and Canon Comment
  CAS-BOT-BC145789  Beckmannia syzigachne W. R. Dudley 1906-6-10 s.n. San Mateo Santa Cruz Mountain Peninsula. Pond - on Southern California Ridge. Comment
  JROH3926  Bellardia trixago John Hunter Thomas 1987-5-19 24291 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing 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-BC75866  Berberis pinnata W. R. Dudley 1896-11-14 s.n. San Mateo Santa Cruz Peninsula. Hill west of Crystal Springs Lake. Comment
  CAS-BOT-BC75872  Berberis pinnata Alice Eastwood 1913-2-22 s.n. San Mateo San Bruno Hills. Comment
  CDA3007  Beta vulgaris E. L. Labadie 1961-10-24 San Mateo Railroad tracks at Chestnut Street, Redwood City. 0 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
  UC1191357  Beta vulgaris Malcolm A. Nobs and S. Galen Smith 1949-8-27 1620 San Mateo salt marshes e Redwood City; salt marshes e of Redwood City Comment
  CAS-BOT-BC66300  Blechnum spicant W. R. Dudley 1897-1-1 s.n. San Mateo By Buano Cr. above Falls and below Sinnatts Comment
  POM55208  Blennosperma nanum var. robustum A. D. E. Elmer 1903-04 s.n. San Mateo San Bruno Hills Comment
  UC1100841  Bolboschoenus fluviatilis Malcolm A. Nobs, S. Galen Smith 1949-8-25 1557 San Mateo marshes at Sharp Park; at Sharp Park Comment
  CAS-BOT-BC31088  Bolboschoenus maritimus Ira L. Wiggins 1980-8-29 22258 San Mateo Bed and lower bank of San Francisquito Creek, ca 200 m upstream from Pope St Bridge Comment
  JEPS101807  Bolboschoenus maritimus subsp. paludosus Dean W. Taylor 1991-8-9 12267 San Mateo Bean Hollow, on margin of pond between old highway and present Highway 1 alingment. 1 Comment
  JROH4422  Bolboschoenus maritimus subsp. paludosus Toni Corelli 2009-8-12 296 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake, dry lake bed in mud. 103 Comment
  CAS-BOT-BC280862  Bolboschoenus maritimus subsp. paludosus Elizabeth McClintock; Paul Reeberg 1989-5-2 s.n. San Mateo San Bruno Mountains. PG&E Marsh 4 Comment
  CAS-BOT-BC417699  Boykinia occidentalis H. L. Mason 1921-7-17 s.n. San Mateo Pescadero Creek on Pescadero-La Honda Road Comment
  CAS-BOT-BC145406  Brachypodium distachyon Peter H. Raven 1957-6-30 11015 San Mateo 1.8 mile east of Pescadero on road to La Honda. Comment
  CDA31372  Brachypodium sylvaticum Robin Breckenridge, K. Filippini 2010-2-17 PDR# 1463751 San Mateo Woodside: 1 Echo Lane. 0 Comment
  JROH5554  Brassica nigra John Rawlings 2013-5-28 1156 San Mateo Jasper Ridge Biological Preserve, Stanford University; a few yards north of Rd F, 75 meters west of Escobar gate (just east of serpentine contact). 161 Comment
  UC2049865  Brassica nigra H. W. Johansen 1955-4-10 48 San Mateo Pescadero Creek Road, about 4 miles E of Pescadero Comment
  RSA195672  Brassica oleracea J. T. Howell 1966-5-28 11644 San Mateo In central part of Menlo Park near Post Office. Comment
Read comments
Jul 14 2014
  SEINET4326828 Image available Brassica rapa Lyman Benson 1939-7-1 San Mateo San Francisco, San Francisco City limits, Skyline Boulevard. 30 Comment
  UC2049864  Brassica rapa H. W. Johansen 1955-4-23 82 a San Mateo Crystal Springs road, 2 miles W of San Mateo Comment
  UCR136582  Brassica rapa George K. Helmkamp, E. A. Helmkamp 1999-6-28 5014 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  CAS-BOT-BC36796  Brassica rapa Javier Penalosa 1963-2-23 2662 San Mateo San Bruno Mountains. Ravine south of Crocker Avenue. 213 Comment
  CAS-BOT-BC145325  Briza minor H. A. Dutton 1900-4-17 s.n. San Mateo Santa Cruz Peninsula. Just east of Jasper on south side of roadside. Comment
  JROH4881  Briza minor John H. Thomas 1967-6-1 12957 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4888  Briza minor John Hunter Thomas 1983-4-5 21320 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along the low-flow crossing Comment
  JROH4889  Briza minor John Hunter Thomas 1983-6-2 22334 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA591526  Briza minor D. D. Keck 1932-4-18 1433 San Mateo Burlingame, on the shore of San Francisco Bay. 2 Comment
  SD227692  Briza minor G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3747 San Mateo Portola Valley: Golden Hills Rd along Los Trancos Creek. 106 Comment
  SJSU15963  Briza minor John Rawlings, Ken Hickman 2016-5-26 1840 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  CAS-BOT-BC482183  Brodiaea appendiculata Rimo Bacigalupi 1922-5-31 s.n. San Mateo Cedro field near Stanford University Comment
  IRVC9059  Brodiaea elegans P. W. Rundel 1964-7-8 1361 San Mateo La Honda Road; 1.5 mi. N of Portola Road Santa Cruz Mtns 274 Comment
  CAS-BOT-BC484345  Brodiaea elegans subsp. elegans Ned Cahill 1974-5-30 323 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  CAS-BOT-BC483186  Brodiaea terrestris subsp. terrestris Philip C. Wheeler 1965-6-19 s.n. San Mateo Fire trail west of quarry, San Bruno Mountain Comment
  SEINET12057834  Brodiaea terrestris subsp. terrestris Copeland 1903-6-5 3297 San Mateo Montara Pt Comment
  CAS-BOT-BC144141  Bromus W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. San Mateo Creek. Comment
  JROH4895  Bromus carinatus var. carinatus John Hunter Thomas 1977-6-16 18740 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1537360  Bromus carinatus var. maritimus Gordon H. True Jr. 1937-4-3 621 San Mateo near coast of Salada Beach 15 Comment
  CAS-BOT-BC156172  Bromus catharticus Elizabeth McClintock; Paul Reeberg 1989-2-4 s.n. San Mateo San Bruno Mountains. Above Randolph Avenue. 53 Comment
  UCD58360  Bromus catharticus John C. Throckmorton 1976-6-29 s.n. San Mateo La Honda. Comment
  CAS-BOT-BC155841  Bromus catharticus var. elatus John Thomas Howell 1956-5-23 21446 San Mateo Menlo Park. El Camino Real at Atherton Avenue. Comment
  JROH4917  Bromus hordeaceus John H. Thomas 1963-5-12 10080 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4931  Bromus hordeaceus John Rawlings 2010-4-28 1093 San Mateo Jasper Ridge Biological Preserve, Stanford University. SW corner of Sun Field Station. 119 Comment
  JROH4938  Bromus laevipes W. Lennihan 1990-4-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Eastern draw, 40 yards down. Comment
  JROH4939  Bromus laevipes W. Lennihan 1990-4-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Eastern draw, 40 yards down. Comment
  UCD58971  Bromus madritensis Beecher Crampton 1962-6-11 6485 San Mateo 5 miles west of Belmont, junction Ralston Ave. and Skyline Blvd. Comment
  JROH5718  Bromus madritensis subsp. madritensis John Rawlings 2015-4-26 1649 San Mateo Jasper Ridge Biological Preserve, Stanford University; near cistern at west side of Field Station. 1120 Comment
  SEINET10966609  Bromus marginatus Edwin B. Copel 1903-6-10 Copeland 3303 San Mateo Montana Point. Comment
  SEINET10520334  Bromus molliformis Delzie Demaree 1932-5-16 Demaree 9141 San Mateo Spring Valley Road. Comment
  SEINET3923660  Bromus mollis K. Harper 1984-4-25 84 -6 San Mateo Along crest of Jasper Ridge, Research Preserve, Stanford University.; 0 Comment
  SEINET9757293 Image available Bromus rigidus Robert A. Norris 1975-3-31 San Mateo near Crocker Ave., San Bruno Mts. Comment
  CAS-BOT-BC161750  Bromus rubens Fred Hemphill 1973-5-14 811 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  SEINET10954096  Bromus rubens Robert A. Norris 1977-5-2 Norris 3568 San Mateo Locally abundant in disturbed soil on gravelly bank by Interstate Hwy. 280, just S of Farmhill Blvd. Exit, Woodside, San Mateo Co., California. Comment
  OBI22365  Bromus sitchensis Lewis S. Rose 1963-4-27 63002 San Mateo Skyline Blvd, W of San Mateo 91 Comment
  CAS-BOT-BC185395  Bromus vulgaris W. R. Dudley 1900-5-19 s.n. San Mateo Santa Cruz Mountain Peninsula. Stage road La Honda Summit. 518 Comment
  UCSB370  Bromus vulgaris Kraebel, C. 1932-7-24 San Mateo Cahill Ridge Comment
  CAS-BOT-BC233707  Buddleja davidii John H. Thomas 1966-9-11 12390 San Mateo 1 mile westward as measured along the road from the La Honda - Pescadero Road intersection Comment
  CAS-BOT-BC233708  Buddleja davidii John H. Thomas 1960-6-25 8794 San Mateo Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street, Redwood City 7 Comment
  RSA140817  Buddleja davidii John H. Thomas 1960-6-25 8794 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street. 8 Comment
  POM144327  Cakile edentula C. F. Baker 1902-10-1 1746 San Mateo Pillar Point. 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
  UC984909  Cakile maritima Ira L. Wiggins 1949-7-2 12196 San Mateo Pescadero Beach Comment
  UCSC007725  Cakile maritima Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC185141  Calamagrostis nutkaensis Elizabeth McClintock 1967-6-24 s.n. San Mateo San Bruno Mountain. Top of mountain between radio stations on Radio Road. Comment
  CAS-BOT-BC185144  Calamagrostis nutkaensis H. L. Mason 1921-5-29 s.n. San Mateo Near Arroyo de Las Frijoles. Comment
  POM199095  Calamagrostis nutkaensis A. D. E. Elmer 1903-05 5040 San Mateo San Pedro Comment
  UC1084413  Calandrinia ciliata G. Thomas Robbins 1937-4-11 105 San Mateo grassy meadow near Spring Valley Lakes (along road to Woodside) Comment
  RSA116800  Callitriche heterophylla subsp. bolanderi W. R. Dudley 1904-4-23 s.n. San Mateo Santa Cruz Mtn. Peninsula: Pool along new Grade Road Black Mt. Comment
  JROH1637  Callitriche marginata John H. Thomas 1971-4-25 15780 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC492166  Calochortus albus Fred Hemphill 1973-5-14 802 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH4602  Calochortus albus John H. Thomas 1973-5-5 16760 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4603  Calochortus albus John H. Thomas 1976-4-28 18096 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA130402  Calochortus albus Le Roy Abrams 1914-05 5224 San Mateo Searsville Reservoir. Comment
  UC575678  Calochortus albus Lewis S. Rose 1935-6-11 35214 San Mateo 9 mi w Stanford University Comment
  UC72477  Calochortus albus Milo S. Baker May 1904 San Mateo near Burlingame Comment
  UCR101611  Calochortus albus George K. Helmkamp, E. A. Helmkamp 1998-5-16 3748 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  CAS-BOT-BC492206  Calochortus albus Margaret A. Barry 1937-5-15 135 San Mateo Steep south slopes and woods on Coal Mine Ridge Comment
  CAS-BOT-BC492211  Calochortus albus John H. Thomas 1971-5-2 15859 San Mateo Serpentine fields bordered by chaparral, near intersection of Canada and Edgewater roads. About 4 miles SW of center of Redwood City. 304 Comment
  CAS-BOT-BC492220  Calochortus albus Otto M. Sokol 1953-5-29 117 San Mateo Bear Creek Road Comment
  JROH4615  Calochortus argillosus H. L. Mason 1921-6-4 s.n. 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
  IRVC9063  Calochortus luteus P. W. Rundel 1964-7-8 1362 San Mateo La Honda Road; 1.5 mi. N of Portola Road Santa Cruz Mtns 274 Comment
  CHSC13523  Calochortus tolmiei S. Villard 1974-4-28 4 San Mateo Found on King's Mt. Road, Woodside, ca. 1 mi w of Mounted Patrol Grounds. 152 Comment
  CAS-BOT-BC132540  Calochortus umbellatus M N. Paulson 1915-4-10 s.n. San Mateo Kings Mountain Comment
  CAS-BOT-BC270666  Calycadenia multiglandulosa L. S. Rose 1941-6-12 41268 San Mateo W of Redwood City, Emerald Lake 120 Comment
  CAS-BOT-BC270670  Calycadenia multiglandulosa L. S. Rose 1956-7-2 56120 San Mateo Emerald Lake, hills W of Redwood City 182 Comment
  JROH578  Calycadenia multiglandulosa John Hunter Thomas 1992-7-24 25392 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET3480492  Calycadenia multiglandulosa L. S. Rose 1941-6-12 1897 San Mateo Emerald Lake, Emerald Lake, West of Redwood City 120 Comment
  POM351403  Calycadenia multiglandulosa subsp. cephalotes L. S. Rose 1937-9-21 37658 San Mateo Emerald Lake, west of Redwood City. 183 Comment
  CAS-BOT-BC436446  Calystegia occidentalis Phillip C. Wheeler 1965-6-16 s.n. San Mateo San Bruno Mountain, Colma Canyon east Comment
  RSA130963  Calystegia purpurata Josephine Randall 1907-7-24 105 San Mateo Near Crystal Springs Lake. Comment
  SJSU8768  Calystegia purpurata L. J. Hoffman 1966-4-6 130 San Mateo San Bruno Mt off Crocker Ave, Daly City Comment
  CAS-BOT-BC224653  Calystegia purpurata subsp. purpurata 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-BC224665  Calystegia purpurata subsp. purpurata Theo. C. Zschokke 1903-7-10 s.n. San Mateo Goat Ranch Road, Corte de [Corte] Madera Creek Comment
  POM271878  Camissonia ovata Arthur L. Cohen 1935-4-21 632 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 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
  CAS-BOT-BC160320  Camissoniopsis cheiranthifolia subsp. cheiranthifolia E. M. Zeile 1921-7-31 s.n. San Mateo Salada Comment
  UC306527  Camissoniopsis micrantha A. D. E. Elmer May 1903 4813 San Mateo San Pedro Comment
  RSA95472  Campanula prenanthoides L. S. Rose 1953-7-27 53054 San Mateo Kings Mountain, Redwood Forest. 610 Comment
  SEINET10463045  Campanula prenanthoides Randall 1907-6-29 RANDALL 17 San Mateo King's Mountain Road Comment
  SEINET10463048  Campanula prenanthoides David D. Keck 1934-7-7 Keck 2929 San Mateo Kings Mountain, west of summit 610 Comment
  SEINET10463364  Campanula prenanthoides Elvander 1970-7-5 ELVANDER 287 San Mateo 1 mile on Water Pant road from intersection with entrance to Butano State Park. Sandy loam, redwood forest. 152 Comment
  JROH1650  Cannabis sativa Ruth Porter 1982-1-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC37676  Cardamine californica A. D. E. Elmer 1903-4-1 4468 San Mateo Portola. Comment
  JROH1486  Cardamine californica John Hunter Thomas 1987-4-7 24176 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC37665  Cardamine californica Elizabeth McClintock 1972-4-23 s.n. San Mateo San Bruno Mountains. Above Fern Rock. Comment
  JROH3903  Cardamine californica D. D. Davis 1903-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM143341  Cardamine californica var. integrifolia A. D. E. Elmer 1903-04 4468 San Mateo Portola. Comment
  JROH5654  Cardamine hirsuta John Rawlings 2014-4-3 1258 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11 143 Comment
  JEPS23926  Cardamine oligosperma LeRoy Abrams 1902-4-5 2308 San Mateo Searsville Comment
  UC1056982  Cardamine oligosperma H. L. Mason 1927-4-23 3695 San Mateo Pescadero Creek near Bloomquist Mill; Pescadero Creek near Bloomquist Mill Comment
  CAS-BOT-BC37982  Cardamine oligosperma Walter Knight; Irja Knight 1965-3-14 939 San Mateo San Bruno Mountain. Romanzoffia Ravine. Comment
  RSA788845  Cardamine oligosperma Peter Rubtzoff 1976-3-28 8451 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  SJSU15404  Cardionema ramosissimum Toni Corelli 2010-4-9 669 San Mateo Rockaway Headlands, southwest of Rockaway Beach, Pacifica, CA 36 Comment
  CAS-BOT-BC281835  Carduus tenuiflorus Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  CDA6894  Carduus tenuiflorus Agricultural Commissioner May 1955 San Mateo San Mateo. 0 Comment
  SEINET7549670 Image available Carex amplifolia Lewis S. Rose 1933-6-23 33250 San Mateo Kings Mountain. Comment
  CAS-BOT-BC19320  Carex barbarae W. R. Dudley 1906-5-1 s.n. San Mateo The Santa Cruz Mountain Peninsula. Bank of raod back from San Carlos Station. Comment
  CAS-BOT-BC19323  Carex barbarae Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5247 San Mateo Lobitos. Comment
  JROH4315  Carex barbarae John H. Thomas 1974-7-6 17472 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS109523  Carex brevicaulis Dean W. Taylor 1992-3-19 12338 b San Mateo Bean Hollow, on coastal bluff ca. 400 m n along the coast from the parking area on the beach side of Highway 1 alingment Comment
  SEINET7552668 Image available Carex brevicaulis J. W. Stacey, Alice Eastwood, John Thomas Howell 1938-4-24 5265 San Mateo Pigeon Point. Comment
  CAS-BOT-BC18931  Carex densa George Oberlander 1950-5-6 917 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon. Comment
  JROH4334  Carex densa John Rawlings, Carol Zabel 2005-6-13 0902 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Trail 1 (creek side) before entering wooded area and Santa Barbara sedge area walking downstream. 87 Comment
  UCD165066  Carex densa Peter Rubtzoff 1975-5-21 7976 San Mateo San Bruno Mountains.'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH4351  Carex harfordii John Rawlings 2010-5-19 1049 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Just beyond NE terminus of Leonard's Bridge, a large clump on the SE verge of the trail. 107 Comment
  CAS-BOT-BC21813  Carex harfordii W. R. Dudley 1906-6-10 s.n. San Mateo Near pond on So. Cahill Ridge. Comment
  UC1100481  Carex obnupta Malcolm A. Nobs and S. Galen Smith 1949-8-25 1575 San Mateo s Rockaway Beach Comment
  UCR279900  Carex obnupta Peter Rubtzoff, Roman Gankin 1975-5-21 7965 San Mateo Central Coast, San Bruno Mountains, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road Junction 220 Comment
  CAS-BOT-BC176400  Carex obnupta Peter Rubtzoff 1976-6-30 8711 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC117641  Carex serratodens LeRoy Abrams 1902-5-1 2425 San Mateo Woodside. Comment
  CAS-BOT-BC117644  Carex serratodens LeRoy Abrams 1902-5-4 2425 San Mateo Woodside. Comment
  POM193944  Carex serratodens Le Roy Abrams 1902-5-4 2425 San Mateo Woodside. Comment
  SEINET7575211 Image available Carex serratodens Lewis S. Rose 1936-5-28 36304 San Mateo Emerald L, W of Redwood City. 91 Comment
  JROH4362  Carex subbracteata John Rawlings 2010-5-19 1053 San Mateo Jasper Ridge Biological Preserve, Stanford University. At west edge of California semaphore grass vernal depression. 122 Comment
  SEINET13715399  Carex subbracteata D. W. Taylor 2008-4-16 20180 San Mateo Half Moon Bay, bluff at the far W end of Redondo Beach Drive. 15 Comment
  UC836144  Carex subbracteata John Thomas Howell 1938-5-1 13778 San Mateo near South San Francisco Comment
  CAS-BOT-BC116817  Carex subbracteata var. subbracteata John Thomas Howell 1938-5-1 13778 San Mateo Near South San Francisco Comment
  CAS-BOT-BC116818  Carex subbracteata var. subbracteata John Thomas Howell 1938-5-1 13779 San Mateo Near South San Francisco Comment
  CAS-BOT-BC116822  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5256 San Mateo Pescadero 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-BC115513  Carex tumulicola W. R. Dudley 1898-4-24 s.n. San Mateo El Corte Madera Comment
  UC836649  Carex tumulicola W. R. Dudley 1910-5-26 San Mateo near Black Mt. (Coal Mine Ridge) Comment
  UCD140941  Carex tumulicola S. S. Tillett; I. Sternback 1956-6-25 543 San Mateo On Middleton property s. of road to Portola State Park, just before entrance. 396 Comment
  CAS-BOT-BC227876  Carex tumulicola Elizabeth McClintock; Paul Reeberg 1989-6-1 s.n. San Mateo San Bruno Mountains. In ravine at southern tip of ridge separating Juncus and Tank Ravines, above Hillside Boulevard 114 Comment
  SEINET3908568  Carex tumulicola Lewis S. Rose 1971-5-18 71031 San Mateo Tartan Trail Road. Hillsborough.; 0 91 Comment
  CAS-BOT-BC230112  Carpobrotus chilensis John H. Thomas 1963-5-20 10142 San Mateo Ano [Ano] Nuevo Island, about 0.5 mile off shore and about 20 miles NW of Santa Cruz Comment
  UCSB1812  Carpobrotus edulis Walker, Clifford 1954-4-20 San Mateo 50 yards from ocean, 1 miles south of Half Moon Bay Comment
  SEINET12028934  Castanopsis chrysophylla W. Knight, Raiche, R. 1982-1 4422 San Mateo Montara Mtn 305 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
  HSC23994  Castilleja affinis Mary Katherine Wicksten 1971-6-24 121 San Mateo Huddart Park, by park entrance Comment
  RSA15303  Castilleja affinis Carl B. Wolf 1927-4-3 273 San Mateo 1 mile above La Honda. Santa Cruz Mountains. Comment
  RSA82256  Castilleja affinis F. W. Peirson 1932-7-5 10243 San Mateo Just south of Pescadero. Comment
  UCSC000665  Castilleja affinis H. S. Yates 1935-3-2 5010 San Mateo 0.5 mile S.E. of Pigeon Pt. Pigeon Pt - Santa Cruz 30 Comment
  JEPS47391  Castilleja affinis subsp. affinis L. R. Heckard 1964-6-24 1402 San Mateo e of Upper Crystal Springs Reservoir (near upper end) Comment
  JEPS60420  Castilleja affinis subsp. affinis T. I. Chuang and F. M. Chuang 1969-6-21 6661 San Mateo about 2 mi s Half Moon Bay road junction with Skyline Boulevard Comment
  JEPS86227  Castilleja affinis subsp. affinis L. R. Heckard 1970-5-5 2452 San Mateo n side San Bruno Mountain (n spur) 60 Comment
  JROH3946  Castilleja affinis subsp. affinis John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3951  Castilleja affinis subsp. affinis John Hunter Thomas 1983-4-28 21780 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1032388  Castilleja affinis subsp. affinis G. E. Sindel 1935-7-24 311 San Mateo Mouth of Pesacdero Creek Mouth of Pescadero Creek; Santa Cruz Quad. 3 Comment
  RSA408815  Castilleja ambigua subsp. ambigua Francis W. Pennell, D. D. Keck 1940-5-15 25427 San Mateo Route 101. Burlingame. 0 Comment
  RSA0030796  Castilleja ambigua subsp. ambigua D. D. Keck 1932-4-29 1453 San Mateo Burlington - San Mateo city limits, Bayshore Highway. Along San Francisco Bay. Comment
  JROH3958  Castilleja attenuata John H. Thomas 1974-4-19 17164 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3963  Castilleja attenuata John Hunter Thomas 1978-4-28 19159 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UCD40891  Castilleja densiflora Nancy Dickenson 1983-4-23 117 San Mateo Jasper Ridge. Stanford Biological Preserve within 1 mile of Westridge Road entrance. Comment
  CHSC1814  Castilleja densiflora subsp. densiflora V. Holt 1943-4-21 San Mateo Comment
  UC103182  Castilleja exserta subsp. latifolia Katharine Brandegee Jun 1905 San Mateo Half Moon Bay Comment
  CHSC42232  Castilleja foliolosa Rusti Gammon 1986-3-30 14 San Mateo Ca. 8.1 mi se of Saratoga, 4.1 mi w off hwy 9. 569 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
  CAS-BOT-BC243841  Castilleja latifolia John Thomas Howell 1933-4-9 10969 San Mateo Coastal hillside between Pescadero and Pigeon Pt. Comment
  JEPS103889  Castilleja latifolia T. I. Chuang and F. M. Chuang 1991-6-29 7852 San Mateo Just south of Pescadero State Beach, on highway 1 Comment
  JEPS103897  Castilleja latifolia T. I. Chuang and F. M. Chuang 1991-6-29 7851 San Mateo Ca. 1/3 mile south of Pescadero State Beach Comment
  RSA448628  Castilleja latifolia D. D. Keck 1932-5-11 1768 San Mateo 2 miles north of San Gregorio Comment
  JROH3992  Castilleja rubicundula subsp. lithospermoides John H. Thomas 1955-5-6 4984 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge 182 Comment
  JROH3993  Castilleja rubicundula subsp. lithospermoides John H. Thomas 1958-5-10 7147 San Mateo Jasper Ridge Biological Preserve, Stanford University; on the top of ridge Comment
  UC311191  Castilleja subinclusa subsp. franciscana A. D. E. Elmer May 1903 4527 San Mateo San Bruno Hills Comment
  UCR122629  Castilleja subinclusa subsp. franciscana George K. Helmkamp, E. A. Helmkamp 2001-6-2 6789 San Mateo Central Coast, Purissima Creek Rd., 0.9 mi from Calif. Hwy 1(junction about 4 mi south of Half Moon Bay) 91 Comment
  JEPS30959  Castilleja subinclusa subsp. franciscana D. E. Breedlove 1961-6-18 602 San Mateo 3 mi s Half Moon Bay-San Mateo Road (on State Hwy 5); Santa Cruz Mountains 365 Comment
  CDA930  Castilleja wightii D. G. Kelch, B. G. Baldwin, Sue Bainbridge, Abigail Moore 2005-6-21 5 .371 San Mateo S.F. Water District land, near Spring Valley. NE corner Pilarcitos Lake. Comment
  JEPS15591  Castilleja wightii Rimo Bacigalupi with J. R. Sweeney 1954-8-3 4735 San Mateo along upper slopes Edgemar Road (nw San Mateo County) 100 Comment
  JEPS30402  Castilleja wightii James B. Roof, Irja Knight 1963-4-24 San Mateo slopes above Colma Canyon (nw end of San Bruno Mountain (in Daly City)); San Bruno Mountain, Daly City 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
  JEPS70084  Castilleja wightii L. R. Heckard 1972-4-16 2904 San Mateo e of Pilarcitos Lake Comment
  RSA152274  Castilleja wightii John H. Thomas 1961-5-7 9305 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  UC1327236  Castilleja wightii John T. Doyen 1966-3-28 37 San Mateo San Bruno Mountains; near Radio Towers on top Comment
  UC648313  Castilleja wightii Blanche Clear 1938-5-22 San Mateo between Redwood and Belmont (Hiddne Valley); Hidden Valley Comment
  JEPS6921  Castilleja wightii Rimo Bacigalupi with G. Thomas Robbins 1954-6-18 4553 San Mateo 0.25 mi w (and below) Alpine Road junction with road to Portola State Park (along Alpine Road) 426 Comment
  JEPS88840  Castilleja wightii T. I. and F. M. Chuang 1991-7-1 7849 San Mateo ca 7 mi s Halfmoon Bay Comment
  POM283640  Castilleja wightii Lyman Benson 1930-4-7 2046 San Mateo Moss Beach. Pacific Ocean Bluffs. 15 Comment
  RSA0005986  Castilleja wightii A. D. E. Elmer 1903-07 4761 San Mateo San Pedro. Comment
  RSA505397  Castilleja wightii R. C. Bacigalupi, G. Thomas Robbins 1955-8-4 5451 San Mateo Along Skyline Blvd. (Calif. Highway No. 5) just west of Crystal Springs Lake (south lake); at a point 6.2 miles north of the junction with Kings Mtn. (not the La Honda) road. 396 Comment
  SEINET8357659  Castilleja wightii A. D. E. Elmer 1903-1 4761 San Mateo San Pedro. Comment
  UCD123037  Castilleja wightii Lewis S. Rose 1965-4-22 65026 San Mateo San Bruno Mountain, south of parking lot. 365 Comment
  CAS-BOT-BC39379  Caulanthus lasiophyllus L. R. Abrams 1917-4-12 6434 San Mateo Near 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-BC39388  Caulanthus lasiophyllus W. R. Dudley 1894-4-24 s.n. San Mateo Santa Cruz Peninsula. San Mateo. Comment
  CAS-BOT-BC40393  Caulanthus lasiophyllus Art Menzies; Barbara Menzies 1965-3-14 s.n. San Mateo San Bruno Mountains. South Power Line Ridge. Comment
  UCD114587  Caulanthus lasiophyllus Ronald E. Dengler 1960-4-3 3 San Mateo Jasper Ridge, Stanford Biological Reserve. 190 Comment
  CAS-BOT-BC47934  Ceanothus Elizabeth McClintock 1974-11-13 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC48394  Ceanothus cuneatus var. cuneatus Lewis S. Rose 1964-3-23 64011 San Mateo Emerald Lake, w. of Redwood City 121 Comment
  CAS-BOT-BC51595  Ceanothus oliganthus var. sorediatus Robert Robertson 1954-5-1 104 San Mateo by road 2 miles S.W. La Honda Junction 365 Comment
  CAS-BOT-BC51603  Ceanothus oliganthus var. sorediatus Brandegee 1890-5-1 38 San Mateo Mts. between San Francisco and Santa Cruz Comment
  CAS-BOT-BC51851  Ceanothus papillosus W. R. Dudley 1902-5-17 s.n. San Mateo Kings Mountain Road Comment
  UC1174505  Ceanothus papillosus LeRoy Abrams 1902-5-20 2412 San Mateo King's Mountain Comment
  UCSC000469  Ceanothus sorediatus A. E. Wieslander 1929-3-3 45 San Mateo Near Palo Alto Plot #1 "Santa Cruz"?, Cordilleras Creek 305 Comment
  CAS-BOT-BC52282  Ceanothus thyrsiflorus Elizabeth McClintock 1972-5-10 s.n. San Mateo East of Kamchatka Point Comment
  CAS-BOT-BC52285  Ceanothus thyrsiflorus C. F. B. 1902-4-12 511 San Mateo La Honda Comment
  CAS-BOT-BC52308  Ceanothus thyrsiflorus Josephine D. Randall 1907-6-8 320 San Mateo Portola Valley Comment
  POM136452  Ceanothus thyrsiflorus Stewart H. Burnham 1894-4-21 1586 San Mateo [Unspecified] Comment
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Aug 11 2010
  RSA15351  Ceanothus thyrsiflorus Carl B. Wolf 1927-2-28 165 San Mateo Pescadero. Comment
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Aug 5 2015
  SEINET12210806  Ceanothus thyrsiflorus W. Knight, Knight, I. 1982-1 4662 San Mateo Tilden Botanic Garden, Berkeley Comment
  JROH590  Centaurea calcitrapa John H. Thomas 1974-8-3 17500 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA444732  Centaurea calcitrapa Lyman Benson 1934-7-29 6111 San Mateo Crystal Springs Lake; Mt. Range: Santa Cruz; Watershed: S. F. Bay. 152 Comment
  CAS-BOT-BC274591  Centaurea calcitrapa A. D. E. Elmer 1903-7-1 4961 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC274594  Centaurea calcitrapa Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  JROH599  Centaurea melitensis John H. Thomas 1963-6-23 10170 San Mateo Jasper Ridge Biological Preserve, Stanford University; Westridge end of ridge Comment
  CAS-BOT-BC277120  Centaurea melitensis Ned Cahill 1974-6-21 338 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH611  Centaurea solstitialis John Hunter Thomas 1991-11-21 26109 San Mateo Jasper Ridge Biological Preserve, Stanford University; SLAC corridor Comment
  RSA17963  Centaurea solstitialis C. B. Wolf 1927-8-13 716 San Mateo Woodside Comment
  CAS-BOT-BC272819  Centromadia parryi subsp. parryi Lewis S. Rose 1931-8-28 s.n. San Mateo Salada Comment
  SEINET8734815 Image available Centromadia pungens Lewis S. Rose 1938-1 38231 San Mateo San Mateo 6 Comment
  SJSU15233  Centromadia pungens subsp. pungens Toni Corelli 2013-8-16 455 San Mateo Ravenswood Open Space Preserve, east end of Bay Road, East Palo Alto 4 Comment
  JEPS20332  Centromadia pungens subsp. pungens Lewis S. Rose 1949-8-14 49166 San Mateo Bayshore Blvd. San Mateo Comment
  CAS-BOT-BC384959  Cerastium arvense David D. Keck 1933-5-11 2303 San Mateo Montara Summit, Montara Mountain Comment
  JROH5737  Cerastium glomeratum John Rawlings 2015-4-5 1657 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near base of scree slope in old quarry off of Trail 12 111 Comment
  CAS-BOT-BC388393  Cerastium glomeratum Margaret A. Barry 1937-5-15 89 San Mateo Coal Mine Ridge Comment
  RSA195571  Chenopodium californicum John H. Thomas 1966-4-29 11585 San Mateo Jasper Ridge Biological Experimental Area, 5 miles SW of Palo Alto. Comment
  UC463309  Chenopodium chenopodioides L. R. Abrams and I. L. Wiggins 1930-11-13 178 San Mateo Salada Beach; margin of pond Comment
  SEINET5765025 Image available Chenopodium macrospermum var. halophilum L. R. Abrams, I. L. Wiggins 1930-1 I 78 San Mateo Salada Beach Comment
  POM164765  Chenopodium murale C. F. Baker 1902-9-2 1549 San Mateo Crystal Springs Lake. Comment
  JROH1827  Chenopodium vulvaria Ann Lambrecht 2005-8-1 17 San Mateo Jasper Ridge Biological Preserve, Stanford University; Bear Creek crossing, east bank, about 2m from stream's edge Comment
  CAS-BOT-BC499310  Chlorogalum pomeridianum var. divaricatum Elizabeth McClintock 1963-6-9 s.n. San Mateo Plants of San Bruno Mountain Comment
  RSA10283  Chlorogalum pomeridianum var. divaricatum H. A. Barker 1927-5-14 657 San Mateo North of Half Moon Bay. Comment
  POM165065  Chorizanthe cuspidata var. cuspidata A. D. E. Elmer 1903-05 s.n. San Mateo San Pedro Comment
  UC162391  Chorizanthe cuspidata var. cuspidata A. A. Heller 1906-6-8 8383 San Mateo near Ocean View, San Francisco; near Ocean View, San Francisco Comment
  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
  CDA28831  Chrysolepis chrysophylla D. G. Kelch 2009-6-9 9 .4 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
  SBBG39512  Chrysolepis chrysophylla L. S. Rose 1970-7-15 San Mateo Kings Mtn 914 Comment
  CAS-BOT-BC36402  Chrysolepis chrysophylla var. minor David D. Keck 1934-7-7 2926 San Mateo Kings Mountain, just east of summit 548 Comment
  JEPS78658  Chrysolepis chrysophylla var. minor Edward Lee 1936-1-26 1742 San Mateo between Purisima Creek and Tunitas Creek (near summit) 609 Comment
  UC1135216  Chrysolepis chrysophylla var. minor C. M. Belshaw 1935-1-25 1468 San Mateo 2.5 mi nw Sierra Moreno Peak; Santa Cruz Quad. 457 Comment
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Oct 3 2011
  JROH2586  Cicendia quadrangularis John H. Thomas 1973-4-20 16579 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176821  Cicendia quadrangularis John H. Thomas 1961-4-29 9182 San Mateo Jasper Ridge Biological Experimental Area, about five miles southwest of Palo Alto. Comment
  CAS-BOT-BC277886  Cirsium brevistylum Margaret A. Barry 1938-4-21 270 San Mateo Los Trancos Creek near Coal Mine Ridge Comment
  RSA3890  Cirsium brevistylum I. L. Wiggins 1929-7-4 3787 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  UCR70775  Cirsium brevistylum Mrs. E. C. Sutliffe 1933-7-26 s.n. San Mateo Lobitos Canyon 451 Comment
  CAS-BOT-BC277891  Cirsium brevistylum Peter H. Raven 1957-6-24 968 San Mateo 0.6 miles s. of San Gregorio Beach Comment
  CAS-BOT-BC100947  Cirsium fontinale var. fontinale Lewis S. Rose 1936-5-23 36295 San Mateo E of Crystal Springs Lake. Type Locality 152 Comment
  JEPS26070  Cirsium fontinale var. fontinale Lewis S. Rose 1959-6-18 59027 San Mateo near County Relief Home; Crystal Springs Lake 121 Comment
  UC175461  Cirsium fontinale var. fontinale W. N. Suksdorf 1913-6-22 113 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
  UC91574  Cirsium fontinale var. fontinale Alice Eastwood 1897-6-1 San Mateo Crystal Springs Comment
  RSA444735  Cirsium occidentale var. venustum Lyman Benson 1937-7-15 8457 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains; San Francisco Bay watershed. 244 Comment
  CAS-BOT-BC280520  Cirsium quercetorum A. D. E. Elmer 1903-6-1 4290 San Mateo Crystal Springs Lake Comment
  UC178910  Cirsium quercetorum Katharine Brandegee 1905-1 San Mateo Moss Beach Comment
  CAS-BOT-BC280506  Cirsium quercetorum Peter H. Raven 1961-8-24 16587 San Mateo East side of Crystal Springs Lakes Comment
  CAS-BOT-BC280514  Cirsium quercetorum Javier Penalosa 1963-3-30 2703 San Mateo San Bruno Mountain. North of Randolph Ave. at Hillside Blvd. in SSF 91 Comment
  CAS-BOT-BC285862  Cirsium vulgare Otto T. Solbrig 1958-8-3 2920 San Mateo On Highway 5, Crystal Spring Lake 30 Comment
  CAS-BOT-BC285869  Cirsium vulgare George Oberlander 1949-8-20 335 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  RSA155840  Cirsium vulgare Peter H. Raven 1961-8-24 16585 San Mateo East side of Crystal Springs Lake Comment
  CAS-BOT-BC162605  Clarkia Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo Quarry 3 - San Bruno Mountains Comment
  SJSU15228  Clarkia amoena subsp. whitneyi Toni Corelli 2012-7-12 804 San Mateo Wavecrest, north of Redondo Road, west of Highway 1 in Half Moon Bay 24 Comment
  CAS-BOT-BC163962  Clarkia purpurea subsp. quadrivulnera A. A. Heller 1906-6-8 8382 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks Comment
  JROH3006  Clarkia purpurea subsp. quadrivulnera John Rawlings, Ann Lambrecht 2011-6-22 0934 San Mateo Jasper Ridge Biological Preserve, Stanford University. North side of main ridge down slope from Escobar Gate. 130 Comment
  CAS-BOT-BC163969  Clarkia purpurea subsp. quadrivulnera H. A. Dutton 1900-4-17 s.n. San Mateo Woodside Serpentine. Along middle of S. side Comment
  CAS-BOT-BC164565  Clarkia purpurea subsp. viminea Ned Cahill 1974-5-18 284 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  RSA176537  Clarkia purpurea subsp. viminea John H. Thomas 1963-6-23 10164 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto Comment
  CAS-BOT-BC165156  Clarkia rubicunda Peter H. Raven 1957-6-24 10962 San Mateo Along State Highway 1, just south of Linda Mar Comment
  CAS-BOT-BC165179  Clarkia rubicunda L. R. Abrams 1907-8-26 s.n. San Mateo Kings Mt. Comment
  JEPS82913  Clarkia rubicunda Roy E. Buck, Randall A. Morgan 1983-6-7 335 San Mateo in triangle of Edgewood and Canada Rds. and Hwy. I-280, n of small watercourse San Francisco Watershed Reserve 158 Comment
  JROH3023  Clarkia rubicunda John Hunter Thomas 1977-6-7 18730 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA78149  Clarkia rubicunda A. D. E. Elmer 1903-06 4310 San Mateo Crystal Springs Lake. Comment
  UC114009  Clarkia rubicunda Katharine Brandegee 1908-7-26 San Mateo near Half Moon Bay; Moss Beach Comment
  UC1279905  Clarkia rubicunda Peter H. Raven 1957-6-24 10962 San Mateo just s Linda Mar (along State Highway 1) Comment
  UC1279949  Clarkia rubicunda Peter H. Raven 1957-6-30 11014 San Mateo 1.8 mi e Pescadero (on road along Pescadero Creek) Comment
  UC930770  Clarkia rubicunda Mrs. Phipps July 1922 San Mateo Tunitas Creek Comment
  UCR253362  Clarkia rubicunda R. F. Thorne, Percy C. Everett 1965-8-1 35076 San Mateo 21.5 miles south of Golden Gate Bridge 69 Comment
  CAS-BOT-BC165130  Clarkia rubicunda L. R. Abrams 1907-8-25 s.n. San Mateo Between [Pecadero] Pescadero and Half Moon Bay Comment
  CAS-BOT-BC165143  Clarkia rubicunda W. Knight; I. Knight 1965-6-20 s.n. San Mateo Crystal Cave Canyon Comment
  CAS-BOT-BC165172  Clarkia rubicunda W. R. Dudley 1894-5-30 s.n. San Mateo Near Redwood City Comment
  RSA113612  Clarkia rubicunda Peter H. Raven 1957-6-30 11017 San Mateo 3.0 miles from State Highway 5 (Skyline Boulevard) on road to Portola State Park Comment
  RSA113614  Clarkia rubicunda Peter H. Raven 1957-7-6 11057 San Mateo Along Tunitas Creek 2.0 miles from junction with State Highway 1. 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
  SJSU11021  Clarkia rubicunda A. H. Lilliberg 1961-5-22 San Mateo by Woodside Heights Rd near Woodside Comment
  UC1071887  Clarkia rubicunda H. and M. Lewis 1951-6-28 859 San Mateo 1.8 mi s Sharp Park Comment
  POM32260  Clarkia rubicunda subsp. blasdalei Katherine Brandegee 1908-08 s.n. San Mateo Between San Pedro and Moss Beach Comment
  RSA108439  Clarkia rubicunda subsp. blasdalei Harlan Lewis, M. Lewis 1951-6-28 962 San Mateo Highway 1, 0.6 mile south of road to Redwood City, at Tunitas Creek. Comment
  UCSC007594  Clarkia rubicunda subsp. blasdalei Randall Morgan 2010-5-29 5038 San Mateo Rockaway Beach Comment
  POM32413  Clarkia unguiculata A. D. E. Elmer 1903-06 4293 San Mateo Alpine School House. Comment
  JROH3331  Claytonia exigua subsp. exigua John H. Thomas 1958-2-15 6992 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3338  Claytonia parviflora subsp. parviflora John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3411  Clematis lasiantha D. E. Breedlove 1971-5-31 19378 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH5686  Clematis lasiantha John Rawlings 2015-3-3 1310 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 9. 194 Comment
  CAS-BOT-BC91479  Clematis lasiantha W. R. Dudley 1900-3-16 s.n. San Mateo Santa Cruz Peninsula. By road below Harkersville. Comment
  JEPS121481  Clinopodium douglasii Adam C. Schneider 2013-5-17 126 San Mateo Crystal Springs Reservoir Comment
  JROH2871  Clinopodium douglasii H. A. Lewis 1908-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  UC729849  Clintonia andrewsiana Carl B. Wolf 1929-5-25 3736 San Mateo 2 mi from Pescadero (on Alpine Creek); Alpine Creek Comment
  CAS-BOT-BC499375  Clintonia andrewsiana A. Kellogg 1870-5-16 s.n. San Mateo San Gregoria Creek Comment
  CAS-BOT-BC499402  Clintonia andrewsiana D. D. Davis 1903-5-2 s.n. San Mateo Near La Hondas Comment
  JEPS47717  Collinsia heterophylla Phillip Wheeler 1965-6-7 San Mateo Buckeye Canyon; San Bruno Mtn Comment
Read comments
Mar 12 2009
  CAS-BOT-BC240932  Collinsia multicolor Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain. In Devil's Arroyo Comment
  RSA296437  Collinsia multicolor A. Martin 1957-5-23 s.n. San Mateo Upper edge of the town Brisbane, SW slope of San Bruno Hills 198 Comment
  UC26675  Collinsia multicolor J. Burtt Davy Jun 21 1893-Jun 23 1893 1134 San Mateo Pilarcitos Lake and Canyon Comment
  JROH4018  Collinsia sparsiflora var. collina John H. Thomas 1976-4-2 18078 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4019  Collinsia sparsiflora var. collina John H. Thomas 1976-4-3 18078 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC729639  Collomia heterophylla Carl B. Wolf 1929-5-25 3725 San Mateo 1/2 mi n La Honda Grade (on road to Woodside) 121 Comment
  UCR121542  Collomia heterophylla George K. Helmkamp, E. A. Helmkamp 1999-6-28 4978 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  HSC23940  Collomia heterophylla Mary Katherine Wicksten 1971-7-12 166 San Mateo Huddart Park; beside Archery Trail above Archery Flat Comment
  RSA59640  Collomia heterophylla Verne Grant, Alva Grant 1950-5-19 8902 San Mateo On w. side of Kings Mt. 1/2 mile w. of Skyline road on Tunitas Creek road. Comment
  JROH207  Conium maculatum John H. Thomas 1964-7-3 10442 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road above Searsville Lake Comment
  JROH210  Conium maculatum John H. Thomas 1969-5-28 15081 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of lake Comment
  JROH216  Conium maculatum John Hunter Thomas 1981-6-4 20673 San Mateo Jasper Ridge Biological Preserve, Stanford University; near lake Comment
  SBBG54550  Conium maculatum C. Taylor 1971-6-12 158 San Mateo corner of Harbor Blvd and Old Country Rd, Belmont Comment
  SEINET4182808 Image available Conium maculatum Robert A. Norris 1985-10-11 4979 San Mateo San Francisco, near S end of Middle Lake, Chain of Lakes, Gold State Park, San Francisco F. Co., Calif. Fls. white. Comment
  UC140526  Conium maculatum C. F. Baker 1902-12-1 196 San Mateo Pacific Coast, Summit of Coast Range Coast Range; Pacific Coast, Coast Range Comment
  CAS-BOT-BC389736  Convolvulus J. Lovelle 1973-7-22 19 San Mateo Mt. Ellen Comment
  JROH1853  Convolvulus arvensis John Hunter Thomas 1986-6-3 24078 San Mateo Jasper Ridge Biological Preserve, Stanford University; old racing bowl Comment
  UCD18542  Convolvulus arvensis Roman Gankin 1950-7-4 10 San Mateo city of Menlo Park, Hermosa Way, along roadside. 30 Comment
  IRVC9058  Corallorhiza maculata P. W. Rundel 1963-7-7 1145 San Mateo San Francisco Bay drainage area; Kings Mtn Road; woodside. Santa Cruz Mountains 305 Comment
  UCD77568  Corallorhiza maculata Robert E. Preston 2001-5-30 1534 San Mateo Ca. 9 mi nnw of Boulder Creek. 365 Comment
  POM273538  Cordylanthus pilosus subsp. pilosus Lyman Benson 1934-7-28 6106 San Mateo Stanford University. Santa Cruz mtn range, S.F. Bay watershed. 152 Comment
  RSA100992  Cordylanthus rigidus subsp. rigidus G. Oberlander 1949-8-20 381 San Mateo San Andreas Valley, San Francisco Watershed Reserve. Comment
  LA205836  Corethrogyne filaginifolia D. Keck; 1932-5-25 1785 San Mateo E side of Crystal Springs Lake Comment
  RSA212483  Cornus californica P. H. Raven 1954-5-16 6967 San Mateo North of mouth of Lobos Creek, Presidio Comment
  CAS-BOT-BC210362  Cornus sericea James McMurphy 1902-5-11 s.n. San Mateo San Francisquito Creek below Stock Farm Comment
  JROH1877  Cornus sericea subsp. sericea John Hunter Thomas 1986-5-1 23987 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek near low flow crossing Comment
  JROH1885  Cornus sericea subsp. sericea John Hunter Thomas 1992-7-24 25383 San Mateo Jasper Ridge Biological Preserve, Stanford University; causeway and boat ramp, along causeway Comment
  UC1543084  Coronopus didymus Donald G. Nelson 1940-7-7 695 San Mateo on road from Half Moon Bay to San Mateo (along Pilarcitos Creek, near Pilarcitos Creek Bridge, where creek forks northward); Pilarcitos Creek 76 Comment
  CAS-BOT-BC190041  Cortaderia jubata Phillip C. Wheeler 1965-8-14 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon. Comment
  CAS-BOT-BC190044  Cortaderia jubata J. H. Thomas 1958-9-15 7472 San Mateo 0.4 mile north of dam on San Mateo Creek along Skyline Boulevard. 91 Comment
  CAS-BOT-BC180280  Corylus cornuta subsp. californica Robert Setzer 1969-3-29 2137 San Mateo Colma Canyon along stream bank. San Bruno Mountain Comment
  POM166453  Corylus cornuta var. californica A. D. E. Elmer 1903-03 4536 San Mateo Kings Mountain Comment
  CAS-BOT-BC141552  Cotoneaster pannosus Elizabeth McClintock; Paul Reedberg 1989-9-4 s.n. San Mateo West end of industrail park - San Bruno Mountains Comment
  JROH3638  Cotoneaster pannosus John Hunter Thomas 1980-4-24 19896 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC287301  Cotula australis John H. Thomas 1961-5-7 9261 San Mateo San Bruno Mt in N part of county 396 Comment
  CAS-BOT-BC287304  Cotula australis Le Roy Abrams 1902-4-13 2323 San Mateo Lake San Andreas Comment
  UC1119278  Cotula coronopifolia H. S. Yates 1935-5-8 5223 San Mateo 1 mi n Bolsa Pt.; Santa Cruz Quad. Comment
  UCR121577  Cotula coronopifolia George K. Helmkamp, E. A. Helmkamp 1999-6-28 5011 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  HSC5423  Cotula coronopifolia R. E. Jones 1966-4-4 24 San Mateo Ano Nuevo Beach 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
  RSA291922  Crassula aquatica Robert A. Norris 1981-11-7 4276 San Mateo Pond near Ano Nuevo Point. Comment
  CAS-BOT-BC427833  Crassula connata John H. Thomas 1965-4-29 10630 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC427840  Crassula connata Margaret A. Barry 1937-5-15 129 San Mateo Coal Mine Ridge. Comment
  JROH1891  Crassula connata John Hunter Thomas 1990-4-26 24814 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Whiskey Hill Gate Comment
  JROH5867  Crassula connata Ruth Porter 1981-3-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. In Fire Rd F before Area C serpentine Comment
  JEPS100484  Crocosmia X crocosmiiflora Dean Wm. Taylor, Shelia Byrne 2000-8-1 17540 San Mateo western slope near summit of Scarper Peak; Santa Cruz Mountains, Montara Mountain 502 Comment
  JROH1957  Croton setiger John H. Thomas 1967-11-5 14131 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1382  Cryptantha microstachys John Rawlings 2011-6-14 1068 San Mateo Jasper Ridge Biological Preserve, Stanford University. Up-slope along Trail b. 142 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
  RSA735619  Cupressus abramsiana subsp. butanoensis John Silba 2004-12-28 B- 421 San Mateo Pescadero County Park, on Butano Ridge, ca. 5 miles east of Dearborn Park Road. 427 Comment
  RSA128701  Cupressus macrocarpa J. T. Howell 1957-5-8 s.n. San Mateo Skyline Blvd. west of San Bruno Comment
  RSA140852  Cupressus macrocarpa John H. Thomas 1960-8-28 8832 San Mateo Near Skyline Blvd. and Summit Dr. to the west of Hillsborough. Comment
  CAS-BOT-BC224412  Cuscuta californica George Oberlander 1950-7-15 1040 San Mateo San Francisco Watershed Reserve Comment
  JROH1861  Cuscuta occidentalis John Rawlings 2011-10-18 1095 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Boat launch below Searsville Lab. 104 Comment
  CAS-BOT-BC257693  Cyclospermum leptophyllum Peter Rubtzoff 1988-6-25 9927 San Mateo Menlo Park, on Willow Road near Alma Street. Comment
  UCD34111  Cyclospermum leptophyllum Beecher Crampton 1976-7-31 9404 San Mateo Redwood City. Comment
  CHSC42086  Cynoglossum grande Rusti Gammon 1986-3-30 2 San Mateo Ca. 8 mi s of Saratoga, 4.1 mi w off hwy 9. 569 Comment
  RSA13334  Cynoglossum grande C. B. Wolf 1927-4-3 264 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  RSA15257  Cynoglossum grande C. B. Wolf 1927-2-26 220 San Mateo Under oaks on the La Honda Grade. Comment
  JROH5902  Cynoglossum grande L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; east side of Searsville Lake below Rattlesnake rocks Comment
  CAS-BOT-BC114776  Cyperus acuminatus Ira L. Wiggins 1973-7-29 22046 San Mateo Bed of San Francisquito Creek, 50-200 m upstream from Pope Street Bridge. Comment
  HSC23970  Cyperus eragrostis Mary Katherine Wicksten 1971-7-13 170 San Mateo Huddart Park by drinking fountain Comment
  JROH4392  Cyperus erythrorhizos John H. Thomas 1974-10-29 17643 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  UC673588  Cypripedium fasciculatum Monica Deitrich March 1927 San Mateo Lake Pilarcitos Comment
  RSA128366  Cytisus scoparius Peter H. Raven 1950-6-3 2259 A San Mateo Near San Andreas Lake. Comment
  CAS-BOT-BC189819  Dactylis glomerata W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of Sneath Ranch, vicinity of Baden. Comment
  JROH5022  Dactylis glomerata John Hunter Thomas 1982-6-7 21031 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC445492  Damasonium californicum Alice Eastwood 1922-4-24 11200 San Mateo On road between Princeton and Morman Comment
  CAS-BOT-BC192233  Danthonia californica L. R. A. 1902-5-11 2451 San Mateo Crystal Springs Comment
  CAS-BOT-BC192240  Danthonia californica Roxana S. Ferris 1920-4-26 2021 San Mateo 2 mi south of Pescadero on Pigeon Pt. Road 30 Comment
  JROH5035  Danthonia californica H. J. Dengler 1967-4-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Found by the vernal spring at west end of the serpentine meadow Comment
  JROH5042  Danthonia californica John Hunter Thomas 1982-5-18 20935 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC1953  Daucus pusillus A. Goekler 1929-5-10 San Mateo Moss Beach. Comment
  RSA176777  Daucus pusillus John H. Thomas 1963-5-20 10137 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  JEPS35779  Deinandra corymbosa V. F. Hesse 1964-5-26 3201 San Mateo near coast Whitehouse Creek Road 45 Comment
  CAS-BOT-BC299211  Deinandra corymbosa subsp. corymbosa Lewis S. Rose 1931-8-28 s.n. San Mateo Moss Beach Comment
  CAS-BOT-BC299214  Deinandra corymbosa subsp. corymbosa Walter Knight; Irja Knight 1963-10-7 s.n. San Mateo Quarry at end of School St. near Hillside Blvd., South San Francisco, San Bruno Mountain Comment
  CAS-BOT-BC292116  Delairea odorata John H. Thomas 1956-12-23 6480 San Mateo At 198 Oak Court, Menlo Park Comment
  UCD95640  Delphinium californicum P. B. Kennedy 1928-5-2 s.n. San Mateo E of Daly City. Comment
  CAS-BOT-BC9220  Delphinium californicum W. R. Dudley 1910-5-26 s.n. San Mateo Near Los Trancos Creek, above Judge Allen's, Santa Cruz Mountains Comment
  CAS-BOT-BC9209  Delphinium californicum subsp. californicum Adolph Daniel Edward Elmer 1903-7-1 4548 San Mateo Pilarcitos Stone Dam Comment
  POM270764  Delphinium hesperium Lyman Benson 1930-5-12 2124 San Mateo Lake Searsville. 152 Comment
  CAS-BOT-BC10293  Delphinium hesperium Elizabeth McClintock 1979-5-28 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  CAS-BOT-BC9870  Delphinium nudicaule Josephine D. Randall 1907-6-29 312 San Mateo Kings Mountain road. Comment
  CAS-BOT-BC116529  Delphinium patens subsp. patens W. Dudley 1896-4-4 s.n. San Mateo Near Crystal Springs Comment
  JROH3455  Delphinium patens subsp. patens John H. Thomas 1977-4-8 18523 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC7941  Delphinium variegatum John Hunter Thomas 1974-4-11 17134 San Mateo SE of Canada Road and Edgewood Road, NW of Woodside 152 Comment
  CAS-BOT-BC7888  Delphinium variegatum LeRoy Abrams 1902-5-4 2410 San Mateo not specified Comment
  UC518022  Delphinium variegatum Lewis S. Rose 1933-4-30 33125 San Mateo open hills Redwood City Comment
  JEPS127792  Delphinium variegatum subsp. variegatum Adam C. Schneider with C. Matt Guilliams 2013-4-7 63 San Mateo 1+ m away from dirt road running parallel to overhead power transmission lines. GPS coordinates approximate. Comment
  CAS-BOT-BC631  Dendromecon rigida subsp. rigida Oliver Norvell 1931-3-2 1396 San Mateo La Honda Grade. Comment
  CAS-BOT-BC633  Dendromecon rigida subsp. rigida Ira L. Wiggins 1925-5-24 1747 San Mateo Grade between Woodside and La Honda. Comment
  SJSU15433  Deschampsia cespitosa subsp. holciformis Toni Corelli 2010-5-4 626 San Mateo Ano Nuevo, Cascade Field along Atkinson Bluff Trail 12 Comment
  JROH5057  Deschampsia danthonioides John Rawlings 2007-5-2 1019 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just off (south side) Road F at edge of chaparral in vernally wet area. 167 Comment
  POM190539  Deschampsia danthonioides D. D. Keck 1932-4-29 1448 San Mateo Redwood City. Fields near the San Francisco Bay salt marshes Comment
  JROH5073  Deschampsia elongata John Hunter Thomas 1988-5-16 24465 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low flow crossing. Comment
  UCD63588  Deschampsia elongata A. A. Beetle 1942-6-11 3598 San Mateo Rt. 5, 15 miles south of San Bruno. Comment
  CAS-BOT-BC201912  Deschampsia elongata M. E. Lang 1923-5-1 s.n. San Mateo (Coal Mine Ridge) Mud Lakes Comment
  POM207175  Deschampsia holciformis E. B. Copeland 1903-6-10 3305 San Mateo Montara Point. Comment
  CAS-BOT-BC905  Dicentra chrysantha Mrs. Ernest Meiere 1916-6-1 s.n. San Mateo Mt. Diablo Comment
  SJSU112  Dicentra formosa T. Rogers 1929-5-30 San Mateo Kings Mt Comment
  UCSB44360  Dicentra formosa Brownell, K. 1979-3-27 San Mateo Gazoos Road, .6 miles east of Highway 1, near Butano State Park 76 Comment
  CAS-BOT-BC911  Dicentra formosa subsp. formosa LeRoy Abrams 1902-4-13 2336 San Mateo Crystal Springs Comment
  CAS-BOT-BC500894  Dichelostemma capitatum Fred Hemphill 1973-5-6 746 San Mateo San Carlos, Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC500891  Dichelostemma capitatum Ned Cahill 1974-4-19 152 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  SEINET12044682  Dichelostemma capitatum W. R. Dudley 1894-1 s.n. San Mateo San Mateo below Dam, Santa Cruz Peninsula Comment
  JROH4659  Dichelostemma capitatum subsp. capitatum John Hunter Thomas 1985-4-25 23563 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4662  Dichelostemma congestum John H. Thomas 1964-4-29 10333 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oakwoodland near Searsville end of ridge Comment
  JEPS125950  Dichondra donelliana D. W. Taylor 2000-7-20 17532 San Mateo Montara Mountain, along dirt road 1 mile W from North Peak Comment
  CAS-BOT-BC209019  Digitaria sanguinalis Lewis S. Rose 1965-9-20 65108 San Mateo Trousdale Dr. & California Dr. Burlingame 9 Comment
  OBI22313  Digitaria sanguinalis Lewis S. Rose 1965-9-20 65108 San Mateo Burlingame, Trousdale Dr & Californica Dr 9 Comment
  SEINET8375013  Diplacus aridus J. I. McMurphy 1906-5-20 25 San Mateo Kings Mt. Santa Cruz Mts. Comment
  CAS-BOT-BC150451  Diplacus aurantiacus Paul Arnaud 1941-4-19 s.n. San Mateo After Hesler Farm entrance, Redwood City Comment
  CAS-BOT-BC150454  Diplacus aurantiacus Daniel Cohen 1953-5-9 89 San Mateo La Honda Road 1/2 way to Skyline Drive on the east slope of the Santa Cruz Mountains Comment
  SEINET8415145  Diplacus aurantiacus LeRoy E. Detling 1932-8-17 1354 San Mateo San Gregorio. Comment
  CAS-BOT-BC151993  Diplacus douglasii Roxana S. Ferris 1918-3-31 758 San Mateo Bare hill above Helveto Lake- Mud Lakes, Coal Mine Ridge - Santa Cruz Mountain Peninsula Comment
  JROH4206  Dirca occidentalis D. E. Breedlove 1971-5-11 19336 San Mateo Jasper Ridge Biological Preserve, Stanford University. This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  RSA15243  Dirca occidentalis Carl B. Wolf 1927-2-17 204 San Mateo Los Trancos Creek, 2 miles back of Stanford University. Comment
  SD99465  Dirca occidentalis John H. Thomas 1968-2-11 14144 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  UC765088  Dirca occidentalis R. F. Hoover 1941-2-12 4761 San Mateo above La Honda; La Honda Creek Comment
  UCD64379  Distichlis spicata var. stolonifera A. A. Beetle 1942-10-1 1888 San Mateo Near San Mateo, borders of San Francisco Bay. Comment
  UC105762  Dodecatheon clevelandii subsp. patulum Brandegee Apr 1889 San Mateo San Mateo Comment
  JROH3386  Dodecatheon hendersonii Herbert Dengler 1973-2-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. In oaks towards E. serp. Top of knoll from gully below 2nd enclosure. Comment
  POM129378  Dodecatheon hendersonii subsp. cruciatum R. L. Pendleton 1907-4-13 1320 San Mateo Canyvess Springs-Deen Ridge. 549 Comment
  JROH1511  Draba verna John Hunter Thomas 1984-4-10 23285 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1518  Draba verna John Hunter Thomas 1991-4-6 24975 San Mateo Jasper Ridge Biological Preserve, Stanford University; on west side of dam Comment
  JROH1519  Draba verna John Hunter Thomas 1991-4-9 24977 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC389714  Drymocallis glandulosa Sharon Rogers 1966-4-23 s.n. San Mateo Area in Crystal Springs watershed, between North and South Gates of Filoli Estate Comment
  CAS-BOT-BC159503  Drymocallis glandulosa var. glandulosa Elizabeth McClintock 1963-6-9 s.n. San Mateo Exposed slopes below top of mountain - San Bruno Mountain Comment
  CAS-BOT-BC159540  Drymocallis glandulosa var. glandulosa H. A. Lewis 1908-5-7 s.n. San Mateo Near Searsville Comment
  UC1128209  Drymocallis glandulosa var. wrangelliana H. S. Yates 1935-2-3 5009 San Mateo 1/2 mi se Pigeon Pt.; Santa Cruz Quadrangle Comment
  CAS-BOT-BC67884  Dryopteris arguta Le Roy Abrams 1902-3-16 2273 San Mateo King's Mountain Comment
  CAS-BOT-BC67890  Dryopteris arguta W. R. Dudley 1905-6-19 s.n. San Mateo Santa Cruz Peninsula, Santa Cruz Mountains - by road near top of New Grade road to Black Mt. Comment
  UCSC007740  Dryopteris arguta Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC410865  Dudleya caespitosa Mrs. E. C. Sutliffe 1933-7-23 s.n. San Mateo Grown from plants collected near Ano Nuevo Pt. Comment
  CAS-BOT-BC428362  Dudleya farinosa Ira L. Wiggins 1929-7-4 3802 San Mateo Near the mouth of Pescadero Creek, 2 miles from town of Pescadero Comment
  JROH1809  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
  JROH1914  Elatine John Hunter Thomas 1984-4-8 23276 San Mateo Jasper Ridge Biological Preserve, Stanford University 166 Comment
  CAS-BOT-BC112957  Eleocharis macrostachya Rimo Bacigalupi 1922-5-25 s.n. San Mateo Emerald Lake Redwood City. Comment
  UC1100725  Eleocharis macrostachya Herbert L. Mason, Verne Grant 1946-8-28 13087 San Mateo S of San Francisco (Santa Cruz--Daly City Road # 5) Comment
  CAS-BOT-BC203880  Elymus X hansenii Elizabeth McClintock; Paul Reeberg 1989-5-30 s.n. San Mateo San Bruno Mountains. On east-facing slope below Ridge Trail; Juncus Ravine 182 Comment
  RSA101019  Elymus glaucus G. Oberlander 1950-5-6 931 San Mateo Pilarcitos Lake. San Francisco Watershed Reserve. Comment
  JROH5102  Elymus glaucus subsp. glaucus John H. Thomas 1967-6-1 12951 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5103  Elymus glaucus subsp. glaucus John H. Thomas 1971-5-30 15979 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5110  Elymus glaucus subsp. glaucus John Hunter Thomas 1988-5-16 24467 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low flow crossing. Comment
  JROH5963  Elymus glaucus subsp. glaucus John Rawlings 2017-5-24 2083 San Mateo Jasper Ridge Biological Preserve, Stanford University. SE corner of Sun Field Station along paved vehicle road to Sun Field Station loading zone 118 Comment
  CAS-BOT-BC235201  Elymus multisetus Ned Cahill 1974-7-14 352 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC235204  Elymus multisetus Phillip C. Wheeler 1965-6-20 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  JROH5126  Elymus multisetus John Hunter Thomas 1978-5-16 19218 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA582099  Elymus multisetus D. D. Keck 1932-5-6 1469 San Mateo Belmont Comment
  SJSU15940  Elymus trachycaulus subsp. trachycaulus John Rawlings, Ken Hickman 2016-5-26 1816 A San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  CDA2047  Elytrigia repens Bruce Martin Aug 1949 San Mateo Coastal; Half Moon Bay, near San Francisco (about 30 mi. So.) 0 Comment
  CDA2050  Elytrigia repens Bruce Martin Aug 1949 San Mateo Coastal; Half Moon Bay, near San Francisco (about 30 mi. So.) 0 Comment
  JROH3043  Epilobium brachycarpum John H. Thomas 1972-8-18 16152 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC165935  Epilobium canum Ira L. Wiggins 1980-8-29 22254 San Mateo Sandy bed of San Francisquito Creek, ca 125 m upstream from Pope Street bridge, Menlo Park Comment
  UCR121544  Epilobium ciliatum subsp. ciliatum George K. Helmkamp, E. A. Helmkamp 1999-6-28 4970 A San Mateo Coast Range; Santa Cruz Mtns, Sky Londa; junction of Calif. Hwy 84 and Calif. Hwy 35, 5 mi south of central Redwood City 457 Comment
  JROH3057  Epilobium ciliatum subsp. ciliatum Ann Lambrecht 2006-8-14 26 San Mateo Jasper Ridge Biological Preserve, Stanford University; spillway of dam, western half, top tier Comment
  SEINET12191216  Epilobium ciliatum subsp. ciliatum Unknown 1932-1 9174 A San Mateo Los Tramcos Woods Comment
  POM32532  Epilobium ciliatum subsp. watsonii A. D. E. Elmer 1903-07 4962 San Mateo Crystal Springs Lake Comment
  UC1122561  Epilobium ciliatum subsp. watsonii H. S. Yates 1935-5-8 5220 San Mateo 2 mi sw Pescadero; Santa Cruz Quadrangle Comment
  UC873365  Epilobium ciliatum subsp. watsonii Alice Eastwood 1912-6-3 215 San Mateo Granada Comment
  JROH3066  Epilobium densiflorum John Hunter Thomas 1981-5-25 20623 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC413802  Epilobium foliosum Robert I. Gilbreath 1973-7-1 0029 San Mateo Burlingame 182 Comment
  JROH3072  Epilobium minutum Herbert Dengler 1964-5-17 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; to be found ca. 100 yds. w. of tiger lily site on serp. slope Comment
  JROH3073  Epilobium torreyi John H. Thomas 1961-4-29 9194 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4766  Epipactis helleborine Toni Corelli 2006-6-28 313 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 13 along causeway 106 Comment
  CAS-BOT-BC384620  Equisetum J. Lovelle 1973-8-5 s.n. San Mateo Pomponio Canyon Comment
  JROH60  Equisetum arvense John Hunter Thomas 1983-5-3 21879 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing Comment
  CAS-BOT-BC57030  Equisetum arvense Phillip C. Wheeler 1965-5-23 s.n. San Mateo N. W. Radio Road Comment
  CAS-BOT-BC57181  Equisetum hyemale subsp. affine Roxana S. Ferris 1921-3-20 2113 San Mateo Pescadero Creek Comment
  CAS-BOT-BC57609  Equisetum telmateia Roxana S. Ferris 1921-4-7 2127 San Mateo South San Francisco Comment
  CAS-BOT-BC57617  Equisetum telmateia J. H. Thomas 1950-3-5 1295 San Mateo About 5 miles from Pescadero toward La Honda along highway 152 Comment
  POM281823  Equisetum telmateia var. braunii Lyman Benson 1930-5-3 2106 San Mateo Above Woodside, Mt. Range: Santa Cruz 244 Comment
  JROH5146  Eragrostis pectinacea var. pectinacea John Rawlings 2011-8-2 1079 San Mateo Jasper Ridge Biological Preserve, Stanford University. In the dry creek bed of San Francisquito Creek near the Dennis Martin site. 71 Comment
  CAS-BOT-BC299889  Erechtites glomeratus L. R. Abrams 1926-5-26 11218 San Mateo San Bruno Hills near Daly City Comment
  CAS-BOT-BC299882  Erechtites glomeratus Phillip C. Wheeler 1965-6-19 s.n. San Mateo Crocker Land Park, Brisbane, San Bruno Mountain Comment
  JROH3146  Eriastrum abramsii John H. Thomas 1961-6-7 9533 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5711  Eriastrum abramsii John Rawlings 2015-5-10 1524 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 14 near its terminus with Rd. E. 113 Comment
  SJSU12768  Eriastrum abramsii Toni Corelli 1986-5-22 San Mateo Edgewood County Park near junction of Edgewood Rd & Hwy 280, Redwood City 219 Comment
  JROH645  Erigeron bonariensis John H. Thomas 1972-8-18 16156 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC300609  Erigeron foliosus var. franciscensis George Oberlander 1949-7-30 303 San Mateo San Francisco Watershed Reserve. On Cahill Ridge Comment
  CAS-BOT-BC295076  Erigeron glaucus J. H. Thomas 1949-10-16 1150 San Mateo Just north of outlet of San Gregorio Creek Comment
  CAS-BOT-BC295094  Erigeron glaucus Louis F. Pitelka 1974-5-28 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  JEPS41479  Erigeron glaucus Adele Lewis Grant 1917-5-6 935 San Mateo near Pescadero; Pebble Beach 3 Comment
  POM204314  Erigeron glaucus I. L. Wiggins 1929-7-4 3798 San Mateo Pescadero Beach Comment
  CAS-BOT-BC295091  Erigeron glaucus Javier Penalosa 1963-3-9 2675 San Mateo San Bruno Mountain. Slopes southeast of 1314 ft. summit 381 Comment
  CAS-BOT-BC300066  Erigeron philadelphicus Phillip C. Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. N. W. Radio Road Comment
  CAS-BOT-BC300246  Erigeron reductus var. angustatus John Thomas Howell 1930-11-9 s.n. San Mateo Crystal Springs Lake Comment
  HSC24048  Eriodictyon californicum Mary Katherine Wicksten 1971-6-18 6 San Mateo Huddart Park by park office Comment
  JROH2719  Eriodictyon californicum John H. Thomas 1970-7-5 15667 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18287  Eriodictyon californicum Carl B. Wolf 1927-6-21 430 San Mateo East slope of Kings Mt. Comment
  UC662625  Eriodictyon californicum L. S. Rose 1941-7-2 41288 San Mateo Kings Mountain 480 Comment
  CAS-BOT-BC250547  Eriogonum gracile Cherie Wetzel 1969-6-20 872 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC250548  Eriogonum gracile John H. Thomas 1971-5-2 15823 San Mateo Near intersection of Canada and Edgewater [Edgewood?] roads. About 4 miles SW of center of Redwood City 304 Comment
  RSA17962  Eriogonum gracile var. gracile Carl B. Wolf 1927-8-15 718 San Mateo Jasper Ridge near Searsville Lake Comment
  CAS-BOT-BC251982  Eriogonum latifolium Robt. T. Orr 1961-7-28 s.n. San Mateo Ano [Ano] Nuevo Island Comment
  CAS-BOT-BC251995  Eriogonum latifolium A. D. E. Elmer 1903-7-1 4557 San Mateo Half Moon Bay Comment
  UC1537277  Eriogonum latifolium Gordon H. True Jr. 1936-6-7 486 San Mateo cove 2 mi s Pescadero 15 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
  JEPS111096  Eriogonum luteolum Zoe Ellis Chandik 1992-7-14 92 -4 San Mateo Edgewood County Park, along upper part of Clarkia Trail just as it enters chaparral Comment
  POM165062  Eriogonum luteolum A. D. E. Elmer 1903-06 4309 San Mateo Belmont Comment
  UCD100310  Eriogonum luteolum Lewis S. Rose 1964-9-9 64073 San Mateo Emerald Lake, west of Redwood City. 243 Comment
  HSC17396  Eriogonum luteolum var. luteolum L. S. Rose 1964-9-9 64073 San Mateo Emerald Lake W of Redwood City 244 Comment
  JROH5849  Eriogonum luteolum var. luteolum Bill Kirsher 1990-7-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. North side of Road F. Comment
  SJSU7503  Eriogonum nudum Lewis S. Rose 1964-9-9 64074 San Mateo W of Redwood City 243 Comment
  UC614886  Eriogonum nudum var. auriculatum Beryl O. Schreiber 1932-5-29 306 San Mateo Crystale Springs Comment
  RSA18381  Eriogonum nudum var. auriculatum Carl B. Wolf 1927-7-1 527 San Mateo Above Emerald Lake, back of Redwood City. Comment
  CAS-BOT-BC304078  Eriophyllum confertiflorum Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  CAS-BOT-BC304087  Eriophyllum confertiflorum Ned Cahill 1974-4-30 235 San Mateo N slope of the knoll, near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City Comment
  CAS-BOT-BC304088  Eriophyllum confertiflorum Ned Cahill 1974-5-13 267 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City Comment
  RSA0056420  Eriophyllum confertiflorum Lewis S. Rose 1933-5-17 s.n. San Mateo Redwood City. Comment
  CAS-BOT-BC301266  Eriophyllum lanatum var. arachnoideum C. F. Leitholt 1893-5-27 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Summit Springs, Kings Mountain Comment
  RSA116761  Eriophyllum lanatum var. arachnoideum W. R. Dudley 1893-5-27 s.n. San Mateo Foot of Summit Springs Road, near Woodside. Santa Cruz Mountain Peninsula Comment
  JEPS34470  Eriophyllum staechadifolium L. R. Heckard and Rimo Bacigalupi 1963-7-2 1359 San Mateo trail to (nw slope) Montara Peak (above old county road) 304 Comment
  RSA17884  Eriophyllum staechadifolium C. B. Wolf 1927-6-29 s.n. San Mateo Pescadero. Comment
  UC896359  Eriophyllum staechadifolium Lewis S. Rose 1938-8-18 38233 San Mateo 3 mi s San Francisco County line; Skyline Blvd. 60 Comment
  CAS-BOT-BC301963  Eriophyllum staechadifolium John H. Thomas 1963-5-20 10123 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC301971  Eriophyllum staechadifolium Carl B. Wolf 1930-11-5 1808 San Mateo 2 miles south of San Gregorio 60 Comment
  CAS-BOT-BC301981  Eriophyllum staechadifolium Ella Dales Cantelow 1940-9-2 3408 San Mateo N. of Davenport Comment
  UCSB10755  Eriophyllum staechadifolium Myrick, Donald 1966-6-11 San Mateo Near Pescadero Creek off Highway #1 south of San Francisco Comment
  SEINET3558734 Image available Erodium botrys David D. Keck 1932-3-6 1391 San Mateo Portola. Comment
  JROH5639  Eryngium jepsonii John Rawlings 2014-6-7 1262 San Mateo Jasper Ridge Biological Preserve, Stanford University. 100 yards west from Escobar Gate, 20 yards north of road F. 161 Comment
  CAS-BOT-BC124226  Erysimum franciscanum George Bowyer Rossbach 1938-5-18 837 San Mateo E side of Crystal Springs Lake 106 Comment
  CAS-BOT-BC54818  Erysimum franciscanum H. E. Parks; S. T. Parks 1930-3-10 0401 San Mateo Spring Valley Lakes. Comment
  CAS-BOT-BC54822  Erysimum franciscanum A. D. E. Elmer 1903-5-1 4477 San Mateo Crystal Springs Lake. 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-BC54869  Erysimum franciscanum Craig Martz 1985-4-15 205 San Mateo South end of Devil's Slide, both sides of SR1. From coast to saddle between San Pedro and Montara Mountain. 304 Comment
  CAS-BOT-BC54871  Erysimum franciscanum J. H. Thomas 1960-3-11 8540 San Mateo Near intersection of Bunker Hill Road and Skyline Drive. 91 Comment
  CAS-BOT-BC54874  Erysimum franciscanum John H. Thomas 1974-5-7 17315 San Mateo San Bruno Mountain. Along Guadalupe Parkway opposite school. Western side of mountain. Comment
  CAS-BOT-BC54880  Erysimum franciscanum Reed Clark Rollins 1942-4-30 3007 San Mateo Southeast slope of the San Bruno Hills, about 1 mile west of Brisbane. Comment
  CAS-BOT-BC54883  Erysimum franciscanum Phillip Wheeler 1965-6-16 s.n. San Mateo San Bruno Mountains. Colma Canyon - east end. Comment
  CAS-BOT-BC54891  Erysimum franciscanum Vernal L. Yadon 1968-4-5 s.n. San Mateo Just south of Ano Nuevo Point. Comment
  RSA101844  Erysimum franciscanum G. B. Rossbach 1939-3-26 901 San Mateo Very near Sharp Park (Salada Beach) Comment
  RSA157747  Erysimum franciscanum John H. Thomas 1961-5-7 9316 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  SJSU8507  Erysimum franciscanum P. F. Canziani 1979-3-2 San Mateo SW of intersection of Hillside Blvd & Chestnut Ave., San Bruno Mt Comment
  UC1034712  Erysimum franciscanum G. B. Rossbach 1955-3-12 569 San Mateo n face of slide s Pedro Point (w edge of Montara Mts.); Devil's Slide 121 Comment
  UC1034936  Erysimum franciscanum G. B. and R. P. Rossbach 1939-5-12 913 San Mateo dunes just back of high sea-cliff 1 1/2 mi n Sharp Park (Salada Beach) Comment
  PGM186  Erysimum franciscanum Vern Yadon 1968-4-5 San Mateo Pigeon Pt Lighthouse area Highway 1, Pigeon Pt Lighthouse just S of Comment
  SEINET11989205  Erysimum franciscanum E. McClintock, Knight, W.; Knight, I. 1982-1 4638 San Mateo Kamchatka Point, San Bruno Mountain Comment
  CAS-BOT-BC403553  Eschscholzia californica Javier Penalosa 1963-3-30 2706 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF 91 Comment
  JROH3096  Eschscholzia californica John H. Thomas 1969-4-12 14881 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC403546  Eschscholzia californica H. L. Mason 1922-4-1 s.n. San Mateo At Pigeon Point Light Comment
  UCSC007745  Eschscholzia californica Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  RSA445603  Eschscholzia californica subsp. californica Glenn A. Gorelick 1967-2-10 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  OBI69919  Eucalyptus globulus Jenn Yost and Matt Ritter, Matt Ritter 8-Apr 65 San Mateo Exit 27 on 280, Farm Hill rd, Woodside Comment
  UC565994  Euonymus occidentalis var. occidentalis A. E. Wieslander 1925-9-25 1 San Mateo Pescadero Creek Santa Cruz Quad., Pescadero Creek 152 Comment
  UC17678  Euphorbia crenulata J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Pilarcitos Canyon; Pilarcitos Canyon, Pilarcitos Lake Comment
  RSA133936  Euphorbia helioscopia John H. Thomas 1959-7-8 8014 San Mateo About 1/4 miles west of center of Pescadero on road toward the coast. Comment
  UC1795595  Euphorbia oblongata J. Beall 2002-6-3 PDR 120145 San Mateo Pope at San Francisquito Creek Comment
  JROH1973  Euphorbia spathulata John H. Thomas 1971-4-10 15755 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  CAS-BOT-BC310623  Eurybia radulina L. R. A. 1902-9-28 3004 San Mateo New Grade Road - Portola Comment
  JROH528  Eurybia radulina L. R. Abrams 1916-10-14 6350 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  JROH727  Euthamia occidentalis John H. Thomas 1974-9-19 17600 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bridge Comment
  JROH5158  Festuca arundinacea John Hunter Thomas 1985-5-21 23664 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bridge Comment
  JROH5163  Festuca arundinacea John Hunter Thomas 1988-5-12 24456 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Lakeside Laboratory Comment
  SJSU16063  Festuca arundinacea Toni Corelli 2009-9-22 446 San Mateo Ano Nuevo State Park, adjacent to Gazos Creek parking lot Comment
  JROH5821  Festuca bromoides John Rawlings 2016-3-8 1682 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 14 uphill from dam spillway 108 Comment
  CAS-BOT-BC278285  Festuca californica James McMurphy 1906-5-20 s.n. San Mateo Road to Kings Mt. Comment
  JROH5176  Festuca californica John H. Thomas 1967-5-12 12866 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC278472  Festuca idahoensis George Oberlander 1950-4-23 799 San Mateo San Francisco Watershed Reserve Comment
  CAS-BOT-BC278479  Festuca idahoensis Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  JROH5482  Festuca microstachys John H. Thomas 1964-4-5 10296 San Mateo Jasper Ridge Biological Preserve, Stanford University. Toward Searsville end of ridge. 152 Comment
  JROH5483  Festuca microstachys S. J. McNaughton 1966-1-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. On serpentine grasslands of Ehrlich's Area H. Comment
  JROH6208  Festuca myuros John Rawlings 2014-3-25 1240 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2 at the Zoology Cabin foundation site. 75 Comment
  JROH5282  Festuca perennis John H. Thomas 1973-6-15 16851 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5962  Festuca perennis John Rawlings 2017-5-24 2082 San Mateo Jasper Ridge Biological Preserve, Stanford University. SE corner of Sun Field Station along paved vehicle road to Sun Field Station loading zone 187 Comment
  JROH5934  Festuca perennis J. Gaither 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Whiskey Hill Gate Entrance Comment
  RSA582075  Festuca rubra D. D. Keck 1932-5-6 1478 San Mateo Above Millbrae Highlands Comment
  CAS-BOT-BC77694  Ficus carica John H. Thomas 1960-6-25 8795 San Mateo Redwood City, running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street 7 Comment
  SD37687  Fragaria chiloensis Edith A. Purer 1933-5-14 3605 San Mateo Pescadero Comment
  SD39962  Fragaria chiloensis Edith A. Purer 1933-7-27 5386 San Mateo sand dunes, two miles south of Pigeon Point Comment
  UC1536909  Fragaria chiloensis Gordon H. True 1937-3-31 616 San Mateo Salada Beach Comment
  UCSB2792  Fragaria chiloensis Walker, Clifford 1954-4-29 San Mateo 50 yds from ocean, 1 mi. S of Half Moon Bay Comment
  UCSC007755  Fragaria chiloensis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC389686  Fragaria vesca subsp. californica Jeanie Nieri 1953-2-14 75 San Mateo Hillside 6 miles west of Belmont Comment
  CAS-BOT-BC457517  Fragaria vesca subsp. californica W. R. Dudley 1898-1-1 s.n. San Mateo Goat Hill, Little Butano, Santa Cruz Pennisula Comment
  CAS-BOT-BC457518  Fragaria vesca subsp. californica James McMurphy 1906-4-30 s.n. San Mateo on top of grade between Portola and Woodside Comment
  CAS-BOT-BC457522  Fragaria vesca subsp. californica Le Roy Abrams 1898-3-1 s.n. San Mateo Kings Mountain Comment
  CAS-BOT-BC457529  Fragaria vesca subsp. californica E. W. Rust 1987-4-27 129 San Mateo Kings Mountain. Comment
  SEINET6697562  Fragaria vesca subsp. californica R. L. Oliver 1976-4-18 s.n. San Mateo La Honda. San Mateo Memorial Park. Comment
  CAS-BOT-BC52674  Frangula californica subsp. californica James Newman 1951-6-5 96 San Mateo Searsville Lake Comment
  CAS-BOT-BC52680  Frangula californica subsp. californica Elizabeth McClintock 1965-3-28 s.n. San Mateo North Power Line Ridge Comment
  CAS-BOT-BC52683  Frangula californica subsp. californica Walter Knight; Irja Knight 1965-5-15 1108 San Mateo Pig Ranch Ravine Comment
  CHSC57013  Frankenia salina Josephine Boyd 1988-5-3 San Mateo On Sand Point in the Menlo Park Baylands at the e end of the Embarcadero ca 0.5 mi e of the Palo Alto Municipal Airport and 0.3 mi nw of the San Mateo County-Santa Clara County boundary. 4 Comment
  OBI75351  Frankenia salina Lewis S. Rose 1938-8-18 38230 San Mateo Brisbane 2 Comment
  RSA391413  Frankenia salina E. A. Purer 1933-8-13 s.n. San Mateo Belmont Comment
  SEINET3151930  Frankenia salina L. S. Rose 1938-8-18 38230 San Mateo Brisbane 2 Comment
  CAS-BOT-BC223548  Fraxinus latifolia W. R. Dudley 1894-10-24 s.n. San Mateo Santa Cruz Peninsula. Near San Francisquito Creek Comment
  CAS-BOT-BC223552  Fraxinus latifolia George Oberlander 1949-8-20 367 San Mateo San Francisco Watershed Reserve. Below San Andreas Dam Comment
  POM130919  Fraxinus latifolia A. D. E. Elmer 1903-07 4615 San Mateo San Mateo Creek Comment
  CAS-BOT-BC130124  Fritillaria affinis Phillip C. Wheeler 1965-6-21 s.n. San Mateo Sierra Point Comment
  POM169361  Fritillaria affinis C. F. Baker 1902-3-30 430 San Mateo Crystal Springs Lake. Comment
  POM278014  Fritillaria affinis Lyman Benson 1935-5-5 6542 San Mateo Lake Searsville 152 Comment
  UC1085319  Fritillaria affinis F. A. Pitelka 1946-4-13 San Mateo Pilarcitos Lake Comment
  UC803943  Fritillaria affinis G. L. Stebbins Jr. 1949-6-5 3984 San Mateo 1/2 mi n of La Honda (along highway) Comment
  SEINET5550647  Fritillaria affinis H. S. Gentry 1931-1 2 San Mateo Collected 1.5 miles west of San Mateo, Half-moon Bay road. Comment
  UC843895  Fritillaria liliacea Lewis S. Rose 1941-3-7 41008 San Mateo w of Redwood City (Emerald Lake); Emerald Lake 152 Comment
  SD39122  Fritillaria liliacea McCallum, Marie Cummings 1933-4-12 2148 San Mateo Open hills near Skyline Boulevard, above La Honda. Comment
  CDA20772  Fumaria capreolata D. Pendleton 2006-6-13 PDR 1381606 San Mateo Old Jackson Orchard Nursery, Pescadero Creek Rd.. Comment
  JROH3102  Fumaria capreolata Ann Lambrecht 2002-5-22 3 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek, below Dennis Martin marker Comment
  CAS-BOT-BC164660  Galium aparine Peter Rubtzoff; Roman Gankin 1974-12-17 7943 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JROH3782  Galium aparine John H. Thomas 1966-4-22 11566 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3783  Galium aparine John Hunter Thomas 1980-5-1 19914 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS35285  Galium murale John H. Thomas 1961-4-29 9177 San Mateo about 5 mi sw Palo Alto; Jasper Ridge Biological Experimental Area, Jasper Ridge Comment
  JEPS6605  Galium porrigens var. porrigens H. A. Walker June 1914 3555 San Mateo San Bruno Hills 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
  UC28243  Galium triflorum Kellogg 1870-1 San Mateo Comment
  UCD121948  Galium triflorum L. T. Dempster 1956-5-15 1001 San Mateo Lake Pilarcitos. Comment
  JROH803  Gamochaeta ustulata John Hunter Thomas 1987-5-5 24245 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1536872  Gamochaeta ustulata G. H. True Jr. 1936-5-14 502 San Mateo canyon s of Salada Beach 365 Comment
  RSA218010  Gamochaeta ustulata Phillip Wheeler 1965-5-12 s.n. San Mateo Pig Ranch Ravine; San Bruno Mountains. Comment
  RSA502345  Gamochaeta ustulata D. W. Taylor 1988-4-8 9506 San Mateo San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest. 238 Comment
  CAS-BOT-BC194556  Garrya elliptica Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo In old quarry in Colma Canyon Comment
  RSA181585  Garrya elliptica E. A. McGregor 1907-2-10 s.n. San Mateo Jasper Ridge. Comment
  UC21592  Garrya elliptica J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  CAS-BOT-BC278660  Gastridium phleoides L. R. Abrams 1937-1-1 s.n. San Mateo Hillsborough Comment
  JROH5193  Gastridium phleoides John Hunter Thomas 1983-6-29 22719 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA135780  Gastridium phleoides C. F. Leitholt 1894-7-30 s.n. San Mateo La Honda. Comment
  SJSU15819  Gastridium phleoides John Rawlings, Ken Hickman 2016-7-21 1907 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
  UCD66730  Gastridium phleoides Malcolm A. Nobs; S. Galen Smith 1949-8-26 1610 San Mateo About 1 mile south of Pigeon Point. Comment
  CAS-BOT-BC59637  Gaultheria shallon Atkinson 1902-11-1 s.n. San Mateo Kings Mts. Comment
  CAS-BOT-BC219101  Genista monspessulana Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Radio Road Comment
  CAS-BOT-BC219146  Genista monspessulana Elizabeth McClintock; Paul Reeberg 1988-6-7 s.n. San Mateo above the intersection of San Bruno Avenue and Annis Comment
  JROH2006  Genista monspessulana John H. Thomas 1961-5-5 9208 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below Searsville Dam 76 Comment
  JROH2014  Genista monspessulana John Hunter Thomas 1983-4-14 21407 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  JROH3151  Gilia achilleifolia subsp. multicaulis John H. Thomas 1967-4-28 12722 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3159  Gilia achilleifolia subsp. multicaulis John Hunter Thomas 1987-4-30 24221 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Dam Comment
  SD38802  Gilia achilleifolia subsp. multicaulis E. A. Purer 1933-5-8 3609 San Mateo Stevens Creek Comment
  UC133800  Gilia achilleifolia subsp. multicaulis A. Eastwood 1893-5-19 San Mateo San Carlos Mt. Comment
  JROH3162  Gilia clivorum Elmer I. Applegate 1895-5-11 343 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Comment
  JROH3163  Gilia clivorum John H. Thomas 1963-3-20 10025 San Mateo Jasper Ridge Biological Preserve, Stanford University; near poppy knoll Comment
  UCSC008259  Gilia clivorum Randall Morgan 1987-4-29 s.n. San Mateo 1st big canyon at Devil's Slide Comment
  CAS-BOT-BC303678  Glebionis coronaria Elizabeth McClintock; Paul Reeberg 1988-4-14 s.n. San Mateo San Bruno Mts. Along Guadalupe Canyon Parkway, near school in Lower Colma Canyon Comment
  SEINET8687951 Image available Glebionis segetum K. Thorne, J. Chandler 1986-7-25 4941 San Mateo Half Moon Bay, 2 miles south of Moss Beach at Dune Beach Comment
  JROH2023  Glycyrrhiza lepidota John H. Thomas 1962-7-15 9923 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below dam Comment
  RSA184927  Gnaphalium beneolens L. S. Rose 1966-8-15 66082 San Mateo Emerald Lake, west of Redwood City 91 Comment
  POM55189  Gnaphalium californicum A. D. E. Elmer 1903-06 4291 San Mateo Crystal Springs Lake. Comment
  POM358849  Gnaphalium luteoalbum L. S. Rose 1936-2-12 36005 San Mateo Burlingame. 91 Comment
  RSA249493  Gnaphalium luteoalbum John F. Emmel 1971-9-25 390 San Mateo Along Radio Road, at 1000 ft. contour, NW end of San Bruno Mts., 0.3 air mile NW of 1314 ft summit. 305 Comment
  POM58030  Gnaphalium stramineum E. B. Copeland 1903-6-18 3211 San Mateo Montara Point. Comment
  SD12565  Grindelia arenicola Edith A. Purer 1933-7-27 5369 San Mateo 2 miles south of Pigeon Point Comment
  CAS-BOT-BC304517  Grindelia hirsutula L. R. Abrams 1909-8-2 4249 San Mateo Santa Cruz Peninsula. Pebble Beach. Pescadero Comment
  CAS-BOT-BC304518  Grindelia hirsutula Alice Eastwood 1937-7-25 18885 San Mateo Pebble Beach, Pescadero Comment
  CAS-BOT-BC304522  Grindelia hirsutula David D. Keck 1934-7-7 294307 San Mateo Pigeon Point Comment
  CAS-BOT-BC304529  Grindelia hirsutula Saichi Kawahara 1969-6-15 426 San Mateo Pescadero Beach, 150 yards south of mouth of Pescadero Creek, Highway 1 4 Comment
  CAS-BOT-BC304548  Grindelia hirsutula A. A. Heller 1907-5-28 8575 San Mateo Above Crystal Springs on the Half Moon Bay road Comment
  JEPS17019  Grindelia hirsutula Rimo Bacigalupi with J. R. Sweeney, G. Bacigalupi Jr., and C. Fenneman 1954-8-3 4738 San Mateo rocky road berm directly above Point San Pedro Comment
  JEPS7750  Grindelia hirsutula Peter H. Raven 1950-4-30 1959 San Mateo Montara Montara (windblown slopes facing ocean) 15 Comment
  POM57689  Grindelia hirsutula C. F. Baker 1903-4-8 s.n. San Mateo San Andreas Lake Comment
  SEINET3139960  Grindelia hirsutula M. P. Dunford 1959-10-3 549 San Mateo Crystal Springs Lake, 1/4 mi N of jct of Hwy 5 (Skyline Blvd) & Ralston Avenue Comment
  SEINET11835893  Grindelia stricta var. angustifolia E. A. Purer 1933-1 5525 San Mateo no further locality Comment
  POM181504  Grindelia stricta var. platyphylla H. F. Copeland 1928-2-25 982 San Mateo Montara. Comment
  POM288781  Grindelia stricta var. platyphylla Lyman Benson 1934-7-4 6101 San Mateo Moss Beach; Pacific Ocean watershed 15 Comment
  RSA184825  Grindelia stricta var. platyphylla L. S. Rose 1965-9-4 65102 San Mateo Pillar Point. 15 Comment
  JROH439  Hedera helix John H. Thomas 1967-6-1 12974 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC158035  Hedera helix Phillip Wheeler; Elizabeth McClintock 1965-6-13 s.n. San Mateo Radion Road near KRON station Comment
  CAS-BOT-BC309541  Helenium puberulum A. D. E. Elmer 1903-7-1 4968 San Mateo San Mateo Comment
  POM288424  Helenium puberulum Lyman Benson 1937-7-15 8453 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains; San Francisco Bay watershed. 244 Comment
  CAS-BOT-BC309536  Helenium puberulum Josephine D. Randall 1907-6-12 72 San Mateo Santa Cruz Peninsula. Portola Road near Stanford University Comment
  POM54388  Helenium puberulum A. D. E. Elmer 1903-07 4968 San Mateo San Mateo Comment
  CAS-BOT-BC305338  Helianthella castanea G. Ward 1941-4-12 s.n. San Mateo Brisbane hills Comment
  RSA0012931  Helianthus californicus L. R. Abrams 1902-09 2989 San Mateo Menlo Park. Comment
  SD39700  Heliotropium curassavicum Edith A. Purer 1933-7-27 5360 San Mateo Pigeon Point Comment
  CAS-BOT-BC305926  Helminthotheca echioides John H. Thomas 1955-11-9 5505 San Mateo Fallow Brussel Sprout field near Sanchez Adobe House, San Pedro Valley, about 8.5 miles south of San Francisco - San Mateo County line, and 0.9 mile inland from the ocean Comment
  JROH1172  Helminthotheca echioides John Hunter Thomas 1981-10-25 20770 San Mateo Jasper Ridge Biological Preserve, Stanford University; near main gate Comment
  SD37583  Helminthotheca echioides Edith A. Purer 1933-8-13 5417 San Mateo Belmont Comment
  CAS-BOT-BC305930  Helminthotheca echioides R. E. Frenkel 1963-12-7 331 San Mateo San Francisco Water District, Whiting Ridge Road, ca. 0.9 mile south-west of Spring Valley Road Comment
  JROH1166  Helminthotheca echioides John H. Thomas 1964-11-15 10525 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along road at edge of Searsville Lake. Comment
  CAS-BOT-BC306177  Hemizonia congesta subsp. congesta J. McMurphy 1909-6-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Summit of ridge between Colma & San Bruno Comment
  CAS-BOT-BC314913  Hemizonia congesta subsp. luzulifolia Ned Cahill 1974-8-26 365 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi. westward from Redwood City Comment
  JROH875  Hemizonia congesta subsp. luzulifolia John Hunter Thomas 1991-8-4 25078 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU8831  Hemizonia congesta subsp. luzulifolia S. Anderson 1962-5-12 San Mateo Crystal Springs Hills Comment
  UC897727  Hemizonia congesta subsp. luzulifolia Roxana Stinchfield 1915-10-14 260 San Mateo Cedro Villa Santa Cruz Mountain Peninsula, Stanford University Comment
  CAS-BOT-BC314926  Hemizonia congesta subsp. luzulifolia W. R. Dudley 1894-4-21 s.n. San Mateo Crystal Springs Comment
  CAS-BOT-BC314943  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-13 10225 San Mateo Near Crystal Springs Lake Comment
  HSC24007  Hemizonia congesta subsp. luzulifolia Mary Katherine Wicksten 1971-7-20 180 San Mateo Huddart Park, below Redwood Shelter Comment
  RSA81629  Hemizonia corymbosa subsp. corymbosa James I. McMurphy 1906-11-17 2 San Mateo Near Portola. Comment
  RSA107063  Hemizonia luzulifolia L. S. Rose 1956-5-28 56082 San Mateo Skyline Blvd W of San Mateo. 183 Comment
  RSA81678  Hemizonia luzulifolia James I. McMurphy 1907-8-6 s.n. San Mateo E of causeway, Crystal Springs Lakes. Comment
  SEINET5554255  Heracleum lanatum H. S. Gentry 1931-1 81 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. 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
  CAS-BOT-BC310245  Hesperevax sparsiflora var. sparsiflora John H. Thomas 1971-5-2 15804 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  JROH891  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1981-5-8 20549 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH902  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1992-4-23 25147 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM87769  Hesperevax sparsiflora var. sparsiflora L. R. Abrams 1902-5-4 2417 San Mateo Woodside Comment
  SBBG28494  Hesperocyparis abramsiana var. abramsiana H. A. Dutton -Sep-1949 San Mateo North Fk of Butano Crk (common corner of Section 11 and 12 and 13 and 14, range 4W) Comment
  CAS-BOT-BC176203  Hesperolinon congestum Blanche Clear 1938-5-22 s.n. San Mateo On road to Emerald Lake Comment
  CAS-BOT-BC176210  Hesperolinon congestum L. R. Abrams 1920-6-1 7497 San Mateo Back of Redwood City Comment
  RSA112351  Hesperolinon congestum L. R. Abrams 1920-6-1 7497 San Mateo Back of Redwood City. Comment
  RSA159409  Hesperolinon congestum John H. Thomas 1961-5-14 9379 San Mateo Just north of dam on San Mateo Creek. 122 Comment
  JROH2926  Hesperolinon micranthum John H. Thomas 1968-5-22 14460 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC67230  Heteromeles arbutifolia Richard Spjut 1980-5-15 6195 San Mateo Palo Alto Foothill Park along Steep Hollow Trail, 1/4 mi. from jct. with Wildhorse Valley 229 Comment
  UC1128087  Heteromeles arbutifolia G. E. Sindel 1935-7-23 295 San Mateo 1/4 mi n of Pescadero Creek 121 Comment
  JROH904  Heterotheca grandiflora John Hunter Thomas 1982-9-23 21163 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC308944  Heterotheca sessiliflora subsp. bolanderi Elizabeth McClintock; Paul Reeberg 1988-4-26 s.n. San Mateo Guadalupe Hills Comment
  RSA184913  Heterotheca sessiliflora subsp. echioides L. S. Rose 1966-8-20 66087 San Mateo San Bruno Mountain. 366 Comment
  UC202810  Heuchera micrantha var. diversifolia A. D. E. Elmer July, 1903 4762 San Mateo Pilarcitos Stone Dam Comment
  SEINET9737076  Heuchera micrantha var. pacifica L. S. Rose 1941-7-2 41289 San Mateo Kings Mountain 600 Comment
  JROH910  Hieracium albiflorum John H. Thomas 1964-11-29 10545 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  SEINET7930198  Hoita orbicularis Lewis S. Rose 1959-6-24 59031 San Mateo San Mateo, Black Mtn Rd near Skyline Blvd.; 0 122 Comment
  JROH5219  Holcus lanatus W. Lennihan 1989-6-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 12 (Mapache), low area before Trail 10 goes uphill; left side of trail coming from lake. Comment
  SEINET10591390  Holcus lanatus Delzie Demaree 1933-6-12 Demaree 10374 San Mateo Bader Station. S. San Francisco. Small bottom. Comment
  POM222903  Holodiscus discolor S. S. Berry 1909-05 s.n. San Mateo Los Trancos Creek. 46 Comment
  RSA449783  Holodiscus discolor D. D. Keck 1932-6-1 1795 San Mateo Above Searsville Lake, on road between Woodside and Skyline Blvd. Santa Cruz Mountains. Comment
  JROH3686  Holodiscus discolor var. discolor John H. Thomas 1962-7-15 9916 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oakwoodland near northern end of ridge. Comment
  CAS-BOT-BC150063  Holodiscus discolor var. discolor Elizabeth McClintock 1965-3-28 s.n. San Mateo In Trillium Gulch Comment
  SEINET6205028  Hordeum brachyantherum L. S. Rose 1963-1 63001 San Mateo Skyline Blvd, W of San Mateo Comment
  SEINET7297786 Image available Hordeum brachyantherum David D. Keck 1932-1 1463 San Mateo Belmont; Common in fields near the salt marshes of San Francisco Bay. Comment
  CAS-BOT-BC284679  Hordeum brachyantherum subsp. brachyantherum David D. Keck 1932-5-6 1463 San Mateo Belmont Comment
  CAS-BOT-BC289533  Hordeum brachyantherum subsp. californicum Ned Cahill 1974-4-29 183 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi westward from Redwood City Comment
  CAS-BOT-BC285148  Hordeum marinum subsp. gussoneanum H. A. Borthwick 1920-6-1 207 San Mateo Santa Cruz Mountain Peninsula. Back of Redwood City Comment
  JROH5237  Hordeum marinum subsp. gussoneanum John H. Thomas 1967-6-1 12952 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC289396  Hordeum murinum subsp. glaucum Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mi. N of Pigeon Point and about 39 mi S of San Francisco Comment
  JROH5255  Hordeum murinum subsp. leporinum John H. Thomas 1962-5-31 9899 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC271356  Hordeum vulgare William R. Dudley 1895-6-1 s.n. San Mateo Near Palo Alto Comment
  CAS-BOT-BC536148  Horkelia californica Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo Below parking lot, San Bruno Mountain Comment
  HSC18685  Horkelia californica L. S. Rose 1966-8-20 66086 San Mateo San Bruno Mtn., head of Colma Canyon 206 Comment
  CAS-BOT-BC532057  Horkelia californica var. frondosa W. R. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs Reservoir Comment
  CDA20055  Hydrocotyle ranunculoides L. Kuwahara 2002-10-9 PDR 064651 San Mateo San Francisco Bay Area; Pomponio Ranch, 3300 Pomponio Crk Rd, San Gregorio. 0 Comment
  JEPS100821  Hypericum canariense Dean W. Taylor 2000-6-12 17462 San Mateo Highway 1 about 1.3 miles North of Piegon Point, just north of Yankee Jim Gulch 10 Comment
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Oct 31 2021
  UCD160240  Hypericum canariense Christopher Dillis 2015-5-15 3 San Mateo South of Pescadero on Hwy 1 (Cabrillo Hwy), 400 m south of Highway Brewing Company, then east 120 m on unmarked 1-lane dirt road; 10 m southwest of intersection with Old Coast Highway. 200 Comment
  UCD160242  Hypericum canariense Christopher Dillis 2015-5-15 5 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
  UCD160244  Hypericum canariense Christopher Dillis 2015-5-15 7 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-BC401210  Hypericum perforatum Elizabeth McClintock; Paul Reeberg 1988-8-12 s.n. San Mateo San Bruno Mountains. Saddle Area Comment
  CAS-BOT-BC311396  Hypochaeris glabra Fred Hemphill 1973-5-6 835 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  POM289690  Hypochaeris glabra Lyman Benson 1936-5-9 7606 San Mateo Menlo Park; U.S. [Route] 99; Watershed: San Francisco Bay. 30 Comment
  RSA18313  Hypochaeris glabra C. B. Wolf 1927-7-14 598 San Mateo Summit of Kings Mountain Rd. Comment
  JEPS127865  Hypochaeris radicata Adam C. Schneider 2013-5-17 187 San Mateo Crystal Springs Reservoir Comment
  JROH928  Hypochaeris radicata John H. Thomas 1974-5-3 17237 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA6414  Hypochaeris radicata D. D. Keck 1932-5-6 1462 San Mateo Belmont. Comment
  OBI33307  Ilex aquifolium Marcia Meissner 1965-5-7 5 San Mateo Growing in garden at 139 Scenic Dr., Redwood City Comment
  RSA127080  Iris douglasiana John H. Thomas 1959-4-4 7656 San Mateo About 0.7 miles S. of Gazos Creek. About 6.5 miles southward from Pescadero. 46 Comment
  SD38480  Iris douglasiana Edith A. Purer 1933-5-5 3633 San Mateo Alpine Road. Comment
  POM263704  Iris douglasiana R. C. Foster 1937-4-30 213 San Mateo Between San Bruno and the Skyline Boulevard Comment
  SEINET12056857  Iris douglasiana G. A. McCallum 1933-1 s.n. San Mateo La Honda Comment
  CAS-BOT-BC133674  Iris longipetala Walter Knight; Irja Knight 1964-3-16 985 San Mateo Point San Bruno Comment
  SBBG32267  Iris longipetala L. S. Rose 1968-3-26 68009 San Mateo S base of San Bruno Mts, S San Francisco 30 Comment
  SEINET5555919  Iris longipetala H. S. Gentry 1931-1 60 San Mateo Collected 2 miles W of San Bruno. Comment
  RSA366831  Iris missouriensis Lewis S. Rose 1938-4-1 38111 San Mateo San Bruno Hills, above Visitacion Valley 61 Comment
  JROH4430  Iris pseudacorus John H. Thomas 1961-5-5 9221 San Mateo Jasper Ridge Biological Preserve, Stanford University. Swampy area at edge of Searsville Lake Comment
  JEPS67913  Isoetes howellii L. R. Heckard and J. J. Thomas 1972-4-16 2896 San Mateo sw of Upper Crystal Springs Reservoir (ca 1 1/2 mi s of Pulgas Water Temple, along Old Canada Rd (private)) 121 Comment
  CAS-BOT-BC112624  Isolepis cernua E. B. Copeland 1903-6-15 3315 San Mateo Montara Point Comment
  SEINET4170779 Image available Isolepis cernua Ira L. Wiggins, Roxana S. Ferris 1939-8-2 9290 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC112610  Isolepis cernua John Hunter Thomas 1973-4-25 16689 San Mateo Stanford University Lands along Sand Hill Road near Whiskey Hill Road. Comment
  CAS-BOT-BC112621  Isolepis cernua W. R. Dudley 1909-10-4 s.n. San Mateo Border of Laguna Alta near Mussel Rock. Comment
  SEINET4170785 Image available Isolepis cernua Malcolm A. Nobs, S. Galen Smith 1949-8-15 1565 San Mateo Marshes at sharp Park Comment
  POM312326  Jaumea carnosa Malcolm A. Nobs, S. Galen Smith 1949-8-26 1598 San Mateo Marshes at the mouth of Pescadero Creek. 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
  UCD164089  Juncus breweri Peter Rubtzoff 1977-11-24 9145 San Mateo San Bruno Mountains.'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH4466  Juncus bufonius var. occidentalis John H. Thomas 1974-4-4 17086 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15977  Juncus bufonius var. occidentalis John Rawlings, Toni Corelli 2016-5-13 1876 San Mateo Vallemar Bluff, Moss Beach. USGS Montara Mountain OE W 7.5 Minute (1:24,000 Scale) Topographic Map. 11 Comment
  POM312825  Juncus effusus subsp. pacificus Malcolm A. Nobs, S. Galen Smith 1949-8-26 1589 San Mateo About 1 mile south of Half Moon Bay. Comment
  CAS-BOT-BC173814  Juncus effusus var. brunneus Peter Rubtzoff; Roman Gankin 1975-9-11 8372 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  UC1101030  Juncus hesperius Verne Grant and Herbert L. Mason 1946-8-28 13081 San Mateo n of San Francisco county prison Comment
  UC1601735  Juncus lescurii J. Burtt Davy 1893-6-22 758 San Mateo head of Lake Pilarcitos Lake Pilarcitos Comment
  POM180973  Juncus occidentalis Kellogg, Brannan 1870-06 s.n. San Mateo San Gregorio Creek. Comment
  CAS-BOT-BC227623  Juncus occidentalis Peter Rubtzoff; Elizabeth McClintock; Paul Reeberg 1989-6-3 s.n. San Mateo San Bruno Mountains. Shearwater 22 Comment
  JROH4502  Juncus patens John Hunter Thomas 1981-7-12 20687 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM292635  Juncus patens Lyman Benson 1937-7-15 8451 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains. 244 Comment
  CAS-BOT-BC210054  Juncus phaeocephalus Peter Rubtzoff 1976-6-30 8706 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Westernmost part of the area on slope across fence. Comment
  CAS-BOT-BC210092  Juncus phaeocephalus Peter Rubtzoff 1978-8-17 9262 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH4515  Juncus xiphioides John Hunter Thomas 1978-5-16 19219 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4037  Keckiella antirrhinoides var. antirrhinoides D. E. Breedlove 1971-5-31 19363 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  HSC23945  Kickxia spuria Mary Katherine Wicksten 1971-7-15 172 San Mateo Huddart Park, along wall in front of residence Comment
  RSA100995  Koeleria macrantha G. Oberlander 1950-4-23 914 San Mateo Sweeney Ridge, San Francisco Watershed Reserve Comment
  RSA18374  Koeleria macrantha C. B. Wolf 1927-7-1 534 San Mateo Above Emerald Lake, back of Redwood City. Comment
  RSA6412  Koeleria macrantha D. D. Keck 1932-5-6 1476 San Mateo Above Millbrae Highlands 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-BC340470  Lactuca saligna John H. Thomas 1969-10-19 15481 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC341635  Lagophylla ramosissima John Thomas Howell 1926-10-9 2215 San Mateo Lake San Andreas Comment
  JEPS20287  Lagophylla ramosissima Lewis S. Rose 1955-9-19 55176 San Mateo 7 mi w of Saratoga; Skyline Boulevard 685 Comment
  CAS-BOT-BC341628  Lagophylla ramosissima James I. McMurphy 1905-9-15 s.n. San Mateo Goat Ranch, just south of junction of State Highway 5 (Skyline Blvd.) and Old La Honda Road Comment
  POM194884  Lagophylla ramosissima D. D. Keck, William M. Heusi 1929-10-24 500 San Mateo Summit of Coast Range, Alpine Creek Road. 686 Comment
  JROH2782  Lamium purpureum Toni Corelli 2010-4-28 358 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of brick pathway from visitors parking lot to field station 120 Comment
  CAS-BOT-BC337880  Lapsana communis David D. Keck 1939-7-1 5007 San Mateo Santa Cruz Mountains, La Honda, along La Honda Creek Comment
  CAS-BOT-BC339061  Lasthenia californica V. F. Hesse 1964-5-26 3205 San Mateo Pigeon Point 4 Comment
  CAS-BOT-BC339073  Lasthenia californica A. D. E. Elmer 1903-4-1 4738 San Mateo San Bruno Hills Comment
  UCSB18865  Lasthenia californica John Schulte 1963-4-26 96 San Mateo collected 3.0 mi SW, along Jasper Ridge, between Santa Clara Valley and Santa Cruz Mountains UC Stanford - Jasper Ridge, UCS 152 Comment
  CAS-BOT-BC339049  Lasthenia californica Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  CAS-BOT-BC339064  Lasthenia californica Elizabeth McClintock 1972-4-23 s.n. San Mateo San Bruno Mountain. Slope above Fern Rock 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
  UC30457  Lasthenia californica subsp. californica J. Burtt Davy 1897-4-1 San Mateo Ocean View Comment
  CAS-BOT-BC324425  Lasthenia californica subsp. macrantha Kenton L. Chambers 1956-6-20 1045 San Mateo Pebble Beach near Pescadero Point, on bluff between Highway 1 and the ocean Comment
  CAS-BOT-BC355496  Lasthenia glaberrima R. Bacigalupi 1923-4-16 s.n. San Mateo Field near San Francisquito Creek near Stanford University Comment
  CAS-BOT-BC355539  Lasthenia glabrata var. glabrata John H. Thomas 1956-4-8 5629 San Mateo Near Bayshore Highway about 2 miles east of Redwood City Comment
  CAS-BOT-BC355545  Lasthenia glabrata var. glabrata Roxana S. Ferris 1927-4-28 6866 San Mateo Redwood City Comment
  CAS-BOT-BC360403  Lasthenia glabrata var. glabrata Ned Cahill 1974-4-23 166 San Mateo Near intersection of Canada and Edgewood Roads, about 3 mi westward from Redwood City. Comment
  JEPS10017  Lasthenia gracilis W. L. Jepson 1921-4-3 9113 San Mateo Colma Canyon northwestern end San Bruno Hills Comment
  RSA116657  Lasthenia macrantha subsp. macrantha H. L. Mason 1921-6-1 s.n . San Mateo Pebble Beach near Pescadero Comment
  CAS-BOT-BC361417  Lasthenia maritima Sue Roberts 1954-5-1 69 San Mateo Pescadero Beach Comment
  CAS-BOT-BC368193  Lasthenia minor James McMurphy 1909-6-13 s.n. San Mateo Colma to San Bruno hills Comment
  RSA176745  Lathyrus latifolius John H. Thomas 1962-7-15 9924 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  SEINET12153905  Lathyrus littoralis M. T. Doutt 1931-1 244 San Mateo S of San Francisco, nr Salada Comment
  SEINET955880  Lathyrus littoralis Ira L. Wiggins 1946-1 11201 San Mateo Sand dunes just above extreme high tide level, Half Moon Bay about 3 miles N. of Town. Comment
  SEINET956172  Lathyrus vestitus subsp. puberulus A. D. E. Elmer 1903-1 4745 San Mateo San Mateo Comment
  POM19350  Lathyrus vestitus subsp. vestitus C. F. Baker 1902-5-10 8256 San Mateo Summit of Coast Range. Comment
  UCD106536  Lathyrus vestitus var. ochropetalus A. A. Heller 1907-5-28 8583 San Mateo Back of San Mateo on the Half Moon Bay road. Comment
  JROH2030  Lathyrus vestitus var. vestitus John H. Thomas 1969-4-12 14883 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2035  Lathyrus vestitus var. vestitus John Hunter Thomas 1983-4-14 21404 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UC1128955  Lathyrus vestitus var. vestitus H. S. Yates 1935-5-8 5203 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. 579 Comment
  UC85257  Lathyrus vestitus var. vestitus C. F. Baker 1902-5-10 801 San Mateo Kings Mt. Comment
  CAS-BOT-BC323182  Layia chrysanthemoides John Thomas Howell 1933-5-26 11343 San Mateo Crystal Springs Lake Comment
  RSA132690  Layia chrysanthemoides Donald A. Johansen 1933-5-27 803 San Mateo Field along Skyline Blvd. at jct of side road leading to Burlingame Comment
  CAS-BOT-BC323156  Layia chrysanthemoides David D. Keck 1932-5-6 1488 San Mateo 4 miles W of Burlingame on Skyline Boulevard. Comment
  CAS-BOT-BC321067  Layia gaillardioides A. D. E. Elmer 1903-6-1 4261 San Mateo Alpine School House Comment
  CAS-BOT-BC321075  Layia gaillardioides James McMurphy 1907-4-27 s.n. San Mateo Kings Mt. Comment
  CAS-BOT-BC321092  Layia gaillardioides Kellogg 1890-5-16 s.n. San Mateo Unspecified 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
  CAS-BOT-BC327484  Layia hieracioides Lewis S. Rose 1936-5-28 36309 San Mateo Emerald Lake, W of Redwood City 91 Comment
  CAS-BOT-BC327502  Layia hieracioides Dr. E Goodman 1922-5-23 s.n. San Mateo San Bruno hills Comment
  JROH990  Layia hieracioides John Hunter Thomas 1983-4-21 21636 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC935708  Layia hieracioides David D. Keck 1932-6-1 1796 San Mateo above Searsville Lake La Honda Road; Santa Cruz Mountains Comment
  CAS-BOT-BC327481  Layia hieracioides Peter H. Raven 1950-4-16 1794 San Mateo Summit ridge of San Bruno Mountains 243 Comment
  RSA21999  Layia hieracioides J. T. Howell 1938-5-1 13769 San Mateo Colma Canyon Comment
  RSA455862  Layia hieracioides Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mts. overlooking Daly City near San Francisco. Comment
  UCSC007762  Layia hieracioides Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC382222  Layia platyglossa Donald A. Johansen 1932-5-21 688 San Mateo One-half mile N of Pigeo Point Light HOuse Comment
  JEPS35780  Layia platyglossa V. F. Hesse 1964-5-26 3208 San Mateo Pigeon Point Comment
  JEPS90940  Layia platyglossa Dean W. Taylor 1989-4-18 10221 San Mateo ridgetop 0.4 mi n of Scarper Peak (Santa Cruz Mountains); Santa Cruz Mountains 502 Comment
  JROH1002  Layia platyglossa John Hunter Thomas 1981-5-8 20560 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
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Feb 14 2014
  JROH996  Layia platyglossa John H. Thomas 1973-4-14 16565 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH999  Layia platyglossa John Hunter Thomas 1980-5-8 19944 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC382217  Layia platyglossa David D. Keck 1932-6-18 1980 San Mateo Skyline Blvd. at Langley HIll (SW of Stanford Unviersity) 600 Comment
  CAS-BOT-BC382218  Layia platyglossa David D. Keck 1932-5-6 1491 San Mateo East side of Crystal Springs Lake 60 Comment
  JROH5750  Layia platyglossa L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Serpentine grassland, top of Jasper Ridge Comment
  SD67318  Layia platyglossa Darley F. Howe 1967-4-14 4351 San Mateo 7.0 miles from San Mateo on road to Half Moon Bay. 120 Comment
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May 24 2013
  POM190415  Layia platyglossa subsp. campestris D. D. Keck 1932-6-18 1980 San Mateo Skyline Boulevard, at Langley Hill (SW of Stanford University) 610 Comment
  CAS-BOT-BC534546  Lemna gibba A. D. E. Elmer 1903-7-1 4765 San Mateo San Pedro Comment
  POM185943  Lemna gibba A. D. E. Elmer 1903-07 4765 San Mateo San Pedro. 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-BC527268  Lemna minuta W. Knight; I. Knight 1966-10-4 2039 San Mateo Crocker Hills marsh between Geneva and Guadalupe Parkway, San Bruno Mountain Comment
  CAS-BOT-BC221529  Lepechinia calycina W. R. Dudley 1893-1-1 s.n. San Mateo Santa Cruz Peninsula. Near Belmont Comment
  RSA229653  Lepechinia calycina Andrew R. Moldenke, Harold N. Moldenke 1971-4-11 25184 San Mateo Jasper Ridge. Comment
  UC25890  Lepechinia calycina J. Burtt Davy 1893-6-17 813 San Mateo Belmont Comment
  CAS-BOT-BC89134  Lepidium didymum Class Collection 1940-1-1 s.n. San Mateo Pescadero. Comment
  RSA116666  Lepidium didymum H. L. Mason 1921-5-29 s.n. San Mateo Pebble Beach near Pescadero. Comment
  RSA18464  Lepidium didymum C. B. Wolf 1927-6-29 544 San Mateo South of Pebble Beach near Pescadero Comment
  JROH1537  Lepidium latifolium John Rawlings, Ann Lambrecht 2009-7-3 0923 San Mateo Jasper Ridge Biological Preserve, Stanford University; north bank of Bear Creek 82 Comment
  RSA285070  Lepidium latifolium J. T. Howell 1978-7-18 53189 San Mateo Airport Sheraton, Airport Blvd., Burlingame. Comment
  UCD115701  Lepidium latifolium John Thomas Howell 1978-7-18 53189 San Mateo Airport Sheraton, Airport Blvd., Burlingame. Comment
  JROH1555  Lepidium nitidum John Rawlings 2008-3-14 1032 San Mateo Jasper Ridge Biological Preserve, Stanford University. West Serpentine Chaparral 169 Comment
  CAS-BOT-BC12596  Lepidium nitidum Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountains. On North Power Line Ridge. Comment
  SEINET12006186  Lepidium nitidum Unknown 1932-1 8943 San Mateo Los Francos Woods Road Comment
  CAS-BOT-BC12753  Lepidium oxycarpum David D. Keck 1932-3-24 1401 San Mateo Redwood City. At border of San Francisco Bay. Comment
  RSA66570  Lepidium oxycarpum D. D. Keck 1932-3-24 1401 San Mateo Redwood City, at border of San Francisco Bay. Comment
  POM216309  Lepidium strictum D. D. Keck 1933-5-11 2301 San Mateo Montara Summit, Montara Mountain. Comment
  CDA32442  Leptochloa fascicularis I. J. Campbell 1959-12-14 San Mateo San Miguel 0 Comment
  CAS-BOT-BC226596  Leptosiphon ambiguus A. D. E. Elmer 1903-4-1 4913 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC226606  Leptosiphon ambiguus H. A. Dutton 1900-3-25 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  CAS-BOT-BC226611  Leptosiphon ambiguus A. D. E. Elmer 1903-4-1 4913 San Mateo Crystal Springs Lake Comment
  JROH3176  Leptosiphon androsaceus John Hunter Thomas 1986-5-17 24055 San Mateo Jasper Ridge Biological Preserve, Stanford University; creek trail downstream from Rattlesnake Rock Comment
  RSA128848  Leptosiphon androsaceus Roxana S. Ferris 1921-5-24 2192 San Mateo Bluffs, Pebble Beach near Pescadero. Comment
  SD27819  Leptosiphon androsaceus Carl B. Wolf 1929-5-25 3731 San Mateo Pebble Beach, south of Pescadero. Comment
  RSA6298  Leptosiphon androsaceus D. D. Keck 1932-5-6 1481 San Mateo Open hillside just west of Millbrae Highlands. 50 Comment
  UC106675  Leptosiphon croceus Katharine Brandegee 1905-6-19 San Mateo Moss Beach (Wienke's) Moss Beach Comment
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Jun 26 2010
  CAS-BOT-BC226729  Leptosiphon latisectus D. D. Davis 1903-4-1 s.n. San Mateo Searsville Ridge Comment
  SBBG39507  Leptosiphon liniflorus L. S. Rose 1970-5-9 70040 San Mateo Black Mtn near Skyline, Hillsborough 121 Comment
  UCD103096  Leptospermum laevigatum T. C. Fuller 1969-5-15 18476 San Mateo Highway 92 to San Mateo, E limits of Half Moon Bay. Comment
  UCD23293  Leptospermum laevigatum Alan T. Whittemore 1976-5-29 111 San Mateo San Francisco Fish and Game Refuge. East side of Lower Crystal Springs Lake, on Sawyer's Camp Road. 94 Comment
  CAS-BOT-BC324051  Lessingia arachnoidea Lewis S. Rose 1964-9-9 64075 San Mateo Crystal Springs Lakes west of San Mateo 243 Comment
  CAS-BOT-BC324054  Lessingia arachnoidea John Thomas Howell 1927-5-10 2388 San Mateo Crystal Springs Lake 213 Comment
  JEPS40995  Lessingia arachnoidea Lewis S. Rose 1964-9-9 64075 San Mateo w of San Mateo; Crystal Springs Lakes Comment
  UC1287458  Lessingia arachnoidea Willard Spence 1960-10-16 634 San Mateo Skyline Blvd. Crystal Springs Lake (along roadside) Comment
  UC1745126  Lessingia arachnoidea Leslie Zander 2000-9-14 San Mateo just W of Crystal Springs Road (N or Tartan Trail Rd.); Hillsborough Comment
  SEINET1782116  Lessingia bakeri Carl F. Baker 1902-10-20 1834 San Mateo Searsville. Comment
  SJSU15428  Lessingia germanorum Toni Corelli 2011-9-14 720 a San Mateo Northeast of Hillside Park, above houses 107 Comment
  JROH1015  Lessingia glandulifera var. glandulifera John Hunter Thomas 1977-6-16 18769 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET7063128  Lessingia glandulifera var. pectinata A. G. Vestal 1963-7-12 s.n. San Mateo Jasper Ridge. UTM Zone 10, 568418mE, 4140415mN. (WGS84/NAD83). 174 Comment
  CAS-BOT-BC324172  Lessingia hololeuca Cherie Wetzel 1969-6-20 871 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC324182  Lessingia hololeuca Lewis S. Rose 1964-9-5 64072 San Mateo Emerald Lake, W of Redwood City 152 Comment
  HSC23932  Lessingia hololeuca Mary Katherine Wicksten 1971-8-20 205 San Mateo Huddart Park below Redwood Shelter. 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
  CAS-BOT-BC342091  Leucanthemum vulgare Elizabeth McClintock; Paul Reeberg 1987-6-12 s.n. San Mateo San Bruno Mountains. Along road to Camp Silverspot Comment
  CAS-BOT-BC272185  Leymus triticoides Elizabeth McClintock; Paul Reeberg 1988-10-31 s.n. San Mateo South side of Crocker Industrial Park just east of West Powerline, San Bruno Mountains 60 Comment
  JEPS85227  Lilaea scilloides Roy E. Buck and James A. West 1985-6-3 531 San Mateo 2.0 air km e Franklin Point (Cascade Ranch, along s side of Whitehouse Canyon Rd, e of first curve in from CA Hwy 1, ca 0.7 air km ne of Whitehourse Canyon Rd-CA 1 junction) 60 Comment
  RSA10411  Lilaea scilloides Carl B. Wolf 1927-6-15 2163 San Mateo Along Skyline Drive, 8 mi. S of San Francisco. Comment
  CAS-BOT-BC130793  Lilium pardalinum W. R. Dudley 1895-9-15 s.n. San Mateo Near Lumber Camp on El Corte de Madera Creek Comment
  SEINET3154762  Limnanthes douglasii L. S. Rose 1935-5-4 35146 San Mateo Skyline Blvd., W. of San Bruno Comment
  UC2046448  Limonium californicum Michael Perlmutter 2011-10-2 s.n. San Mateo Coyote Point Marina. County of San Mateo Department of Parks. Comment
  CDA36129  Limonium perezii Michael Perlmutter 2011-6-15 San Mateo Burlingame, Sanchez Marsh. 0 Comment
  JROH4055  Limosella acaulis John Hunter Thomas 1980-11-12 20169 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC238361  Limosella aquatica L. R. Abrams; I. L. Wiggins 1939-6-3 424 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC238364  Limosella aquatica W. R. Dudley 1909-10-4 s.n. San Mateo The Santa Cruz Mountain Peninsula. W. twin-pond, northern part of county Comment
  JEPS58172  Linanthus ambiguus A. D. E. Elmer Apr 1903 4913 San Mateo Crystal Springs Lake Comment
  JEPS58174  Linanthus ambiguus W. L. Jepson 1914-3-22 5731 San Mateo vicinity San Francisco Bay; Redwood City Comment
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Oct 24 2021
  UC336384  Linanthus androsaceus unknown 491 San Mateo Colma, S.P.R.R. Colma Comment
  SEINET5556991  Linanthus androsaceus H. S. Gentry 1931-1 91 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  UC1745718  Linanthus dichotomus Annetta Carter, Helen Sharsmith 1937-5-23 1318 San Mateo E side of Middle Crystal Springs Lake, about 1/2 mi. N of dam. Comment
  JEPS30889  Linanthus liniflorus J. H. Thomas 1958-5-13 7166 San Mateo about 3 mi sw San Mateo (along Skyline Blvd, 0.3 mi s of intersection of Skyline Blvd with Black Mt Rd) 304 Comment
  UC133890  Linanthus liniflorus C. F. Baker 1902-5-4 760 San Mateo Woodside Comment
  UCSC005529  Linanthus parviflorus Randall Morgan 1994-4-2 2173 San Mateo Jasper Ridge Comment
  SD39367  Linum californicum McCallum 1933-5-24 3707 San Mateo Fields on Stanford Campus. Comment
  UC1135271  Lithocarpus densiflorus C. M. Belshaw 1935-1-25 1470 San Mateo 2.5 mi nw Sierra Moreno Peak; Santa Cruz Quad. 609 Comment
  CAS-BOT-BC36074  Lithocarpus densiflorus var. densiflorus Margaret A. Barry 1938-5-29 266 San Mateo Corte Madera Creek near Coal Mine Ridge Comment
  POM166732  Lithocarpus densiflorus var. densiflorus C. F. Baker 1902-10-1 1759 San Mateo Summit of Coast Range. Comment
  POM182580  Lithocarpus densiflorus var. densiflorus D. D. Keck 1931-7-5 1262 San Mateo Skyline Boulevard, due E. of La Honda. 610 Comment
  CAS-BOT-BC36069  Lithocarpus densiflorus var. densiflorus W. R. Dudley 1895-3-26 s.n. San Mateo Beyond Post Office and near Mill on Alpine road Comment
  CAS-BOT-BC430771  Lithophragma affine A. A. Heller 1907-4-25 8464 San Mateo San Bruno Hills Comment
  CAS-BOT-BC430774  Lithophragma affine Elizabeth McClintock 1965-3-28 s.n. San Mateo Trillium Gulch, San Bruno Mountain Comment
  CAS-BOT-BC60214  Lobularia maritima Elizabeth McClintock 1967-9-24 s.n. San Mateo San Bruno Mountain. Crocker Avenue. Comment
  UCD18543  Lobularia maritima Roman Gankin 1950-7-8 11 San Mateo city of Menlo Park, Hermosa Way, along roadside. 30 Comment
  JROH744  Logfia gallica John Hunter Thomas 1988-5-3 24436 San Mateo Jasper Ridge Biological Preserve, Stanford University; picnic area Comment
  JROH750  Logfia gallica John Hunter Thomas 1992-5-26 25362 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC342472  Logfia gallica Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon Comment
  JROH736  Logfia gallica John H. Thomas 1977-4-29 18569 San Mateo Jasper Ridge Biological Preserve, Stanford University 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-BC269125  Lolium perenne Sister Anna Voss 1950-6-8 s.n. San Mateo N.W. head of Ravine behind Belmond Church Comment
  RSA786667  Lolium perenne subsp. multiflorum Peter Rubtzoff 1976-6-13 8629 San Mateo San Bruno Mountains: 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. In area of uppermost part of East Fork Colma Creek, at the NW corner of Fog Forest. Comment
  UC1073369  Lomatium caruifolium var. caruifolium George B. Rossbach 1955-3-26 373 San Mateo upper N slope, N of radio tower San Bruno Mountain 335 Comment
  JROH278  Lomatium utriculatum Duncan M. Porter 1960-4-22 657 B San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of NE-facing slope above Webb Ranch. Quadrat H-3 Comment
  CAS-BOT-BC240429  Lonicera hispidula W. R. Dudley 1895-9-15 s.n. San Mateo El Corte Madera, Canon [Canyon], Sta Cruz Mts Comment
  CAS-BOT-BC240583  Lonicera hispidula Ned Cahill 1974-5-13 263 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC240590  Lonicera hispidula Josephine D. Randall 1907-6-29 20 San Mateo Santa Cruz Peninsula. Los Trancos Creek near Stanford University Comment
  CAS-BOT-BC240600  Lonicera hispidula J. H. Thomas 1949-10-16 1157 San Mateo Between Skyline Drive and Searsville Lake 304 Comment
  JROH1655  Lonicera hispidula John H. Thomas 1975-6-5 17934 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack Comment
  UC306779  Lonicera hispidula var. vacillans A. D. E. Elmer June, 1903 4255 San Mateo Crystal Springs Lake Comment
  UC311525  Lonicera hispidula var. vacillans A. D. E. Elmer July, 1903 4596 San Mateo Lake San Andreas Comment
  RSA164830  Lonicera hispidula var. vacillans Wesley O. Griesel 1963-6-20 811 San Mateo Road between Palo Alto to State Hwy 5. 457 Comment
  CAS-BOT-BC241541  Lonicera involucrata var. ledebourii A. D. E. Elmer 1903-6-1 4272 San Mateo Lake San Andreas Comment
  CAS-BOT-BC241550  Lonicera involucrata var. ledebourii Elsie Zeile 1911-3-30 s.n. San Mateo S. San Francisco 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
  POM46739  Lonicera involucrata var. ledebourii C. F. Baker 1903-4-8 1918 San Mateo San Andreas Lake Comment
  CAS-BOT-BC243965  Lonicera involucrata var. ledebourii Walter Knight 1964-9-14 834 San Mateo Ridge between Peak Mt. and Highway 1 Comment
  UC15718  Lotus heermannii var. orbicularis F. T. Bioletti 1892-6-22 San Mateo Italian Cemetery, S. Fr. Comment
Read comments
Dec 1 2007
  UC1128997  Lotus purshianus var. purshianus G. E. Sindel 1935-8-28 343 San Mateo 2 mi se Crystal Springs Lake; Santa Cruz Quad. 167 Comment
  POM276693  Lotus unifoliolatus Lyman Benson 1930-5-26 2142 San Mateo Stanford University. Lake Searsville. 152 Comment
  HSC23882  Lotus unifoliolatus var. unifoliolatus Mary Katherine Wicksten 1971-6-15 25 San Mateo Huddart Park Rd. bank near office Comment
  UC1594176  Lotus wrangelianus Jerry Powell 1991-5-14 1602 San Mateo Edgewood Park Comment
  CAS-BOT-BC60246  Lunaria annua E. W. Rust 1908-3-28 s.n. San Mateo Vicinity of Stanford University. Woodside Post Office. Comment
  JEPS83227  Lupinus Adele Lewis Grant 1917-3-6 938 San Mateo Pebble Beach near Pescadero; near Pescadero, Pebble Beach 3 Comment
  CAS-BOT-BC198274  Lupinus unspecified 1982-4-24 s.n. San Mateo San Francisco Peninsula Comment
  RSA253793  Lupinus C. P. Smith 1948-4-23 48142 San Mateo Highway 1, San Pedro Point, north grade. Comment
  UC15757  Lupinus affinis Alice Eastwood April 1896 San Mateo near Crystal Springs; near Crystal Springs Comment
  POM77734  Lupinus affinis C. P. Smith 1921-4-9 3290 San Mateo San Mateo Canyon Comment
  CAS-BOT-BC195808  Lupinus albifrons var. albifrons Fred Hemphill 1973-3-1 632 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC195786  Lupinus albifrons var. albifrons Charles Piper Smith 1946-3-26 46115 San Mateo Highway 5, San Francisco County Jail Road north Comment
  CAS-BOT-BC195807  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-21 48457 San Mateo Highway 5, junction Sharps Park Road Comment
  CAS-BOT-BC196112  Lupinus albifrons var. collinus Charles Piper Smith 1908-4-26 1417 San Mateo Side of San Bruno Mountain, south-east of Cemeteries Comment
  CAS-BOT-BC196119  Lupinus albifrons var. collinus Charles Piper Smith 1908-5-31 1439 San Mateo South San Francisco, San Bruno Mountain, S.E. of cemeteries Comment
  CAS-BOT-BC196127  Lupinus albifrons var. collinus John Thomas Howell 1938-5-1 13770 San Mateo Colma Canyon Comment
  CAS-BOT-BC196128  Lupinus albifrons var. collinus A. D. E. Elmer 1903-5-1 4642 San Mateo San Bruno Hills Comment
  UC1084380  Lupinus albifrons var. collinus G. Thomas Robbins 1937-4-11 79 San Mateo Skyline Boulevard near County Jail San Francisco (San Francisco); s of San Francisco Comment
  CAS-BOT-BC8523  Lupinus apricus C. P. Smith 1908-5-2 1427 San Mateo Stanford University. Stockfarm bridge. Comment
  CAS-BOT-BC196436  Lupinus arboreus J. Ed. McClellan; Bonnie McClellan 1976-6-7 s.n. San Mateo Jeep Fire Trail, Butano State Park Comment
  SEINET10488466  Lupinus arboreus Charles Piper Smith 1948-4-20 Smith 48112 San Mateo Hwy 1. San pedro point, s slope Comment
  SEINET10488495  Lupinus arboreus Charles Piper Smith 1947-4-25 Smith 47186 San Mateo Pebble beach, pescardero, hwy 1, petals mostly yellow Comment
  POM349927  Lupinus arboreus var. arboreus Ynez Whilton Winblad 1934-7-4 s.n. San Mateo Taken in the sand dunes at Pescadero Beach. Comment
  JROH2115  Lupinus bicolor John H. Thomas 1975-4-19 17794 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC155172  Lupinus bicolor A. A. Heller 1911-4-12 10250 San Mateo near Stanford University; near Stanford University Comment
  UC155231  Lupinus bicolor A. A. Heller 1911-4-12 10251 San Mateo near Stanford University; near Stanford University Comment
  SEINET11071805 Image available Lupinus bicolor subsp. umbellatus A. A. Heller 1907-1 8451 San Mateo Near Lake Merced Comment
  CAS-BOT-BC215067  Lupinus chamissonis Walter & Irja Knight 1965-3-21 973 San Mateo Mouth of Colma Canyon Comment
  CAS-BOT-BC215068  Lupinus chamissonis Walter & Irja Knight 1964-5-4 s.n. San Mateo Colma Canyon Comment
  RSA212136  Lupinus densiflorus var. densiflorus L. S. Rose 1970-5-9 70038 San Mateo Chateau Drive near Skyline, Hillsborough. 91 Comment
  UCD23306  Lupinus formosus Alan T. Whittemore 1976-5-29 113 San Mateo San Francisco Fish and Game Refuge. East side of Lower Crystal Springs Lake, on Sawyer's Camp Road. 94 Comment
  RSA0036527  Lupinus formosus Daisie Huang 2006-8-6 06080603 San Mateo Inside San Francisco Water Authority land. 288 Comment
  RSA414793  Lupinus formosus var. formosus E. A. Purer 1933-8-13 5426 San Mateo Near Belmont Comment
  CAS-BOT-BC8329  Lupinus lasiotropis Charles Fuller Baker 470 San Mateo Crystal Springs Lake 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
  UC75238  Lupinus latifolius var. latifolius C. F. Baker 470 San Mateo Crystal Springs Lake; ; Crystal Springs Lake, San Mateo Co. Comment
  UC729631  Lupinus microcarpus var. densiflorus Carl B. Wolf 1929-5-17 3712 San Mateo Alpine Road e Skyline Blvd. 304 Comment
  JROH2126  Lupinus nanus John H. Thomas 1967-4-28 12723 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2134  Lupinus nanus John Hunter Thomas 1980-4-10 19876 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  SEINET10486141  Lupinus polycarpus William R. Dudley 1894-4-11 Dudley UMO 180410 San Mateo Near Menlo Park Reservoir. Comment
  SD37926  Lupinus succulentus Delzie Demaree 1932-4-9 2135 San Mateo Comment
  HSC76497  Lupinus vallicola subsp. apricus Charles Piper Smith 1946-3-26 46118 San Mateo Wood side, 2.3 mi. N Comment
  SEINET10490275  Lupinus vallicola subsp. apricus P. Wheeler 1966-5-1 Wheeler UMO 104189 San Mateo Crocker field industrial park. San bruno mtn. Large colony of blue flowered Lupines with many white flowered plants mixed in. Comment
  UC201947  Lupinus variicolor A. D. E. Elmer May, 1903 4709 San Mateo San Pedro Comment
  UC865525  Lupinus variicolor Alice Eastwood and John Thomas Howell 1938-6-26 6076 San Mateo Kings Mt. Comment
  SEINET10936779  Lupinus variicolor Smith 1948-4-23 Smith 48138 San Mateo Hwy 1, montara, government property. Comment
  SEINET10969935  Lupinus variicolor Smith 1947-4-25 Smith 47180 San Mateo Skyline hwy 5, 1.4 mi s of old hwy 1 jct. Comment
  SEINET12162894  Lupinus variicolor E. McClintock, Knight, W.; Knight, I. 1982-1 4644 San Mateo Windy Kamchatka Point, San Bruno Mtn 351 Comment
  SEINET5559201  Lupinus variicolor H. S. Gentry 1931-1 86 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  SJSU10398  Luzula comosa E. C. Garbett 1961-4-8 San Mateo Searsville Lake Park at head of San Francisquito Creek Comment
  CAS-BOT-BC441263  Luzula macrantha W. R. Dudley 1900-3-16 s.n. San Mateo Santa Cruz Peninsula: Trail north of Tripp's Store, Woodside Comment
  CAS-BOT-BC441365  Luzula subsessilis Walter Knight; Irja Knight 1965-4-4 s.n. San Mateo San Bruno Mountain: Bitter Cherry Ravine Comment
  UCR228239  Luzula subsessilis Peter F. Zika 2010-5-1 24790 San Mateo San Francisco Bay, Santa Cruz Mountains, southeast shore of Alpine Pond 660 Comment
  CAS-BOT-BC210033  Luzula subsessilis Peter Rubtzoff 1976-3-28 8450 San Mateo San Bruno Mtns. Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction, on E rim of East Fork Colma Creek Canyon Comment
  UCD41235  Lysichiton americanus Rebecca L. Moehlmann 1977-4-19 1 San Mateo 0.8 miles east of Cloverdale Road on Canyon Road. 15 miles south of Halfmoon Bay and Highway 1, turn east ( left) on Pescadero Road, go 2 miles than turn South (right) on Cloverdale Road. About 2 1/2 miles till Canyon Road. Comment
  UC19773  Lythrum hyssopifolia J. Burtt Davy 1893-6-17 777 San Mateo Belmont Comment
  UC796711  Lythrum hyssopifolia Ira L. Wiggins 1949-7-2 12195 San Mateo on Pescadero Beach Pescadero Beach Comment
  UCR121493  Lythrum hyssopifolia George K. Helmkamp, E. A. Helmkamp 1999-6-28 4957 San Mateo Coast Range; Santa Cruz Mtns, Sky Londa; junction of Calif. Hwy 84 and Calif. Hwy 35, 5 mi south of central Redwood City 457 Comment
  CAS-BOT-BC342588  Madia Paul Reeberg 1989-5-30 s.n. San Mateo San Bruno Mountains. Owl Canyon Comment
  CAS-BOT-BC343910  Madia elegans Ned Cahill 1974-10-8 379 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  POM190414  Madia elegans subsp. vernalis D. D. Keck 1932-6-18 1979 San Mateo Skyline Boulevard, at Langley Hill (SW of Stanford University) 610 Comment
  JROH1051  Madia exigua John Hunter Thomas 1978-4-22 19108 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1059  Madia exigua John Hunter Thomas 1983-6-2 22333 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1062  Madia exigua John Hunter Thomas 1988-5-16 24463 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1063  Madia exigua John Hunter Thomas 1992-5-5 25219 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam and vicinity Comment
  CAS-BOT-BC343329  Madia gracilis Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountain. Lower slope on south side above Olivet Cemetery Comment
  JROH1076  Madia gracilis John Hunter Thomas 1978-5-12 19204 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  JROH1092  Madia gracilis John Hunter Thomas 1988-5-12 24455 San Mateo Jasper Ridge Biological Preserve, Stanford University; by old quarry below dam Comment
  RSA176604  Madia madioides John H. Thomas 1961-6-20 9555 San Mateo Portola State Park, near junction of Peters and Pescadero Creeks 152 Comment
  JROH1106  Madia sativa John Hunter Thomas 1981-7-24 20726 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM204315  Madia sativa I. L. Wiggins 1929-7-4 3796 San Mateo Pescadero Beach Comment
  CAS-BOT-BC345123  Madia sativa Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Quarry 4 Comment
  POM284997  Madia sativa Lyman Benson 1934-7-4 6103 San Mateo Moss Beach; Pacific Ocean watershed 15 Comment
  POM298334  Madia sativa D. D. Keck 1930-10-15 988 San Mateo SW of Woodside 457 Comment
  JROH4692  Maianthemum racemosum D. D. Davis 1903-4-19 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Base of Searsville Ridge Comment
  RSA3925  Maianthemum racemosum subsp. amplexicaule Josephine Randall 1908-3-28 s.n. San Mateo Kings Mt. Comment
  CAS-BOT-BC512103  Maianthemum racemosum subsp. amplexicaule Elizabeth McClintock 1965-3-28 s.n. San Mateo Trillium Gulch with Trillium chloropetalum; San Bruno Mountain Comment
  CAS-BOT-BC512110  Maianthemum racemosum subsp. amplexicaule Mrs. S. G. Suttiffe 1921-4-3 s.n. San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC514162  Maianthemum stellatum W. R. Dudley 1893-2-19 s. n. San Mateo Road from La Honda to Alpine Comment
  CAS-BOT-BC514169  Maianthemum stellatum Walter & Irja Knight 1964-5-4 s. n. San Mateo Colma Canyon, south ridge Comment
  UC575701  Malacothamnus davidsonii Lewis S. Rose 1935-6-11 35213 San Mateo 3 mi w Stanford University Foothills Comment
  JROH2958  Malacothamnus fasciculatus John H. Thomas 1962-6-6 9906 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
  JROH2959  Malacothamnus fasciculatus John H. Thomas 1969-5-28 15085 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2963  Malacothamnus fasciculatus John Hunter Thomas 1977-6-7 18732 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC204085  Malacothamnus hallii Alice Eastwood 1912-6-10 346 San Mateo Crystal Springs Comment
  HSC16000  Malva arborea P. A. Murphy 1965-4-16 45 San Mateo Half Moon Bay Comment
  SEINET7248024  Malva assurgentiflora Robert C. Bechtel 1952-1 84 San Mateo Colma Comment
  CHSC57018  Malva parviflora Steven Triano 1988-5-24 188 San Mateo Ca 100 ft sw of Hwy. 1, 750 ft s of Gazos Creek and 2.4 mi s of Pigeon Point Light Station. 6 Comment
  JROH1898  Marah fabacea James Newman 1951-4-21 41 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake 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
  SJSU11761  Marah fabacea S. Anderson 1962-4-15 San Mateo Burlingame Hills near Burlingame Comment
  JROH5783  Matricaria discoidea John Rawlings 2016-4-26 1758 San Mateo Jasper Ridge Biological Preserve, Stanford University. Rd E near Trail 13. 105 Comment
  CAS-BOT-BC348192  Matricaria discoidea George Oberlander 1949-4-9 26 San Mateo San Francisco Watershed Reserve. San Andreas Valley Comment
  CAS-BOT-BC60298  Matthiola incana Elizabeth McClintock; Paul Reeberg 1988-3-15 s.n. San Mateo San Bruno Mountains. Entrance to Olivet Ravine. Comment
  CAS-BOT-BC422674  Meconella californica C. F. Baker 1902-4-6 457 San Mateo Crystal Springs Lake Comment
  POM149324  Meconella californica C. F. Baker 1902-4-6 457 San Mateo Crystal Springs Lake. Comment
  UC50156  Meconella californica J. Burtt Davy 1895-4-20 1039 San Mateo San Mateo Creek Comment
  CAS-BOT-BC422684  Meconella californica Miss E. Cannon 1893-3-1 s.n. San Mateo South San Francisco Comment
  JROH2151  Medicago arabica John H. Thomas 1955-5-6 5010 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  JROH2158  Medicago lupulina Ann Lambrecht 2005-8-1 18 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road C just south of low-flow crossing, west side of road Comment
  JROH2159  Medicago lupulina Ann Lambrecht 2005-8-1 18 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road C just south of low-flow crossing, west side of road Comment
  JROH2162  Medicago polymorpha John H. Thomas 1966-4-24 11579 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2176  Medicago polymorpha John Hunter Thomas 1992-5-14 25229 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat ramp Comment
  CAS-BOT-BC269479  Melica californica George Oberlander 1950-4-23 808 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  CAS-BOT-BC264187  Melica subulata George Oberlander 1950-4-23 867 San Mateo San Francisco Watershed Reserve, south boundary Comment
  CAS-BOT-BC264188  Melica subulata W. R. Dudley 1898-4-24 s.n. San Mateo El Corte Madera, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC264249  Melica torreyana W. R. Dudley 1900-5-19 s.n. San Mateo Above La Honda, Santa Cruz Mountain Peninsula Comment
  JROH2192  Melilotus indicus John Hunter Thomas 1982-5-18 20933 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
  JROH2828  Mentha X piperita John H. Thomas 1968-10-29 14856 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2807  Mentha pulegium John H. Thomas 1964-11-29 10533 San Mateo Jasper Ridge Biological Preserve, Stanford University; W end of Searsville Dam Comment
  JROH2821  Mentha pulegium John Hunter Thomas 1982-11-6 21209 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of Searsville Lake near Searsville Lab Comment
  UCD144582  Mercurialis annua Greg Escoto 2014-2-21 s.n. San Mateo San Pedro Valley Park, a county park located at 600 Oddstad Blvd., Pacifica. Visitor Center flower beds. 55 Comment
  RSA176742  Micropus californicus John H. Thomas 1963-5-12 10086 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  RSA292406  Micropus californicus Lyman Benson 1935-5-5 6539 San Mateo Lake Searsville. Stanford University. Santa Cruz Mtn range. S.F. Bay watershed. 152 Comment
  JROH1122  Micropus californicus var. californicus John H. Thomas 1963-5-12 10085 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1123  Micropus californicus var. californicus John H. Thomas 1967-5-10 12862 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1130  Micropus californicus var. californicus John Hunter Thomas 1986-5-6 24003 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC348573  Micropus californicus var. californicus George Oberlander 1949-7-24 286 San Mateo San Francisco Watershed Reserve. Northern Cahill Ridge Comment
  UCSC004608  Microseris Randall Morgan 1994-4-13 2182 San Mateo Edgewood Park/Canada Road Comment
  CAS-BOT-BC349021  Microseris douglasii subsp. douglasii LeRoy Abrams 1902-5-4 2418 San Mateo Woodside Comment
  CAS-BOT-BC349033  Microseris douglasii subsp. douglasii John H. Thomas 1971-5-2 15801 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  JROH1143  Microseris douglasii subsp. douglasii John H. Thomas 1967-5-10 12853 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
  UC50038  Microseris douglasii subsp. douglasii J. Burtt Davy 1895-4-20 1073 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC349024  Microseris douglasii subsp. douglasii K. L. Chambers 1952-5-11 404 San Mateo 3.2 mi. s. of junction of Canada Road (from Woodside to Crystal Springs Lake), with Ralston Avenue (Belmont Road) Comment
  CAS-BOT-BC27842  Microseris heterocarpa Albert Kellogg s.n. San Mateo San Bruno Hills Comment
  CAS-BOT-BC322718  Microseris paludosa Miss Patterson; Miss Wiltz 1907-6-1 297 San Mateo Pacific Grove, Monterey Peninsula Comment
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Jul 22 2020
  UC2044060  Microseris paludosa Neal Kramer 2005-5-14 CR 440 San Mateo POST Cloverdale Ranch. North end of the Mesa approx. 0.4 mi east of Lake Lucerne. Comment
  JROH3218  Microsteris gracilis John H. Thomas 1968-3-17 14180 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA119749  Microsteris gracilis subsp. humilis James I. McMurphy 1907-4-27 s.n. San Mateo Kings Mountains Comment
  POM222786  Mimulus aurantiacus var. aurantiacus S. S. Berry 1909-4-23 s.n. San Mateo Road near Los Francos Creek 61 Comment
  POM5073  Mimulus aurantiacus var. aurantiacus Stewart H. Burnham 1894-4-21 s.n. San Mateo [Unspecified] Comment
  JROH4082  Mimulus douglasii Le Roy Abrams 1902-4-5 2293 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  UC103734  Mimulus grandis C. F. Baker 1902-5-4 759 San Mateo Woodside Comment
  SEINET11943608  Minuartia douglasii L. S. Rose 1937-1 37249 San Mateo Burlingame hills 91 Comment
  CAS-BOT-BC214086  Monardella villosa D. E. Breedlove 1974-5-13 36235 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  CAS-BOT-BC214174  Monardella villosa L. R. Abrams 1920-6-1 7496 San Mateo Back of Redwood City, Santa Cruz Mountain Peninsula Comment
  RSA218007  Monardella villosa Elizabeth McClintock, Walter, Irja Knight, Baki Kasapligil 1967-7-18 s.n. San Mateo North side of ridge road adjacent to Buckeye Canyon, San Bruno Mountain Comment
  SEINET10582381  Monardella villosa subsp. franciscana A. Graff 1993-7-13 Graff 188 San Mateo Devil's Slide, in arroyos on inland side of Hwy. 1. Mostly past bloom. Coastal scrub. Comment
  JROH2849  Monardella villosa subsp. villosa John Hunter Thomas 1983-6-29 22712 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC327790  Monolopia gracilens James McMurphy 1909-5-25 s.n. San Mateo La Honda Comment
  CAS-BOT-BC445194  Montia parvifolia A. D. E. Elmer 1903-5-1 4577 San Mateo Iverson's Place Comment
  UC672605  Morella californica Herbert L. Mason 1927-4-23 3694 San Mateo Pescadero Creek near Bloomquist Mill Comment
  UC1206482  Muilla maritima Le Roy Abrams 1902-4-13 2330 San Mateo Crystal Springs Lake Comment
  POM291273  Muilla maritima Lyman Benson 1931-3-10 2643 San Mateo Redwood City. Santa Cruz mtn range, Emerald Lake. 152 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
  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
  UCSB279  Najas guadalupensis McPherson, D. 1960-08 San Mateo Felt Lake; Stanford University foothills Comment
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1
  CAS-BOT-BC260027  Nassella lepida John H. Thomas 1971-5-2 15855 San Mateo Near intersection of Canada Road and Edgewater Road, about 3 miles W from Redwood City 152 Comment
  CAS-BOT-BC260241  Nassella pulchra Javier Penalosa 1963-3-9 2670 San Mateo San Bruno Mountain. SE of 1314 ft. summit 381 Comment
  POM295476  Nassella pulchra Lyman Benson 1930-4-17 2080 San Mateo Stanford University. 152 Comment
  SBBG32478  Nassella pulchra L. S. Rose 1963-4-27 63000 San Mateo Skyline Blvd, W of San Mateo 91 Comment
  UCD77883  Nasturtium officinale Robert E. Preston 2001-5-30 1535 San Mateo Ca. 9 mi nnw of Boulder Creek. 304 Comment
  POM226867  Navarretia mellita L. R. Abrams 1914-7-1 5224 San Mateo Searsville Lake. Comment
  UC1124144  Navarretia squarrosa G. E. Sindel 1935-7-25 310 San Mateo Lagoon, mouth of Pescadero Creek Santa Cruz Quad., Pescadero Creek 7 Comment
  UC125073  Navarretia squarrosa Katharine Brandegee Aug 1908 San Mateo Montara Point Comment
  JROH2755  Nemophila John Hunter Thomas 1992-4-7 25130 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Indian grinding rock. Comment
  UCSC007750  Nemophila humifusa Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH2737  Nemophila menziesii var. menziesii D. D. Davis 1903-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  RSA15266  Nemophila menziesii var. menziesii Carl B. Wolf 1927-3-2 230 San Mateo Above Searsville Lake. Comment
  POM65250  Nemophila parviflora var. parviflora C. F. Baker 1902-4-12 509 San Mateo La Honda. Comment
  JROH422  Nerium oleander Toni Corelli 2012-10-23 378 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near caretakers house 109 Comment
  CAS-BOT-BC140436  Oemleria cerasiformis D. E. Breedlove 1974-5-13 36201 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  CAS-BOT-BC140441  Oemleria cerasiformis E. G. Dudley 1904-3-3 42 San Mateo Portola Valley, Santa Cruz Mts. Comment
  JROH3711  Oemleria cerasiformis John Hunter Thomas 1981-2-14 20220 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3719  Oemleria cerasiformis Toni Corelli 2003-1-28 253 San Mateo Jasper Ridge Biological Preserve, Stanford University; limited access Road A, that goes toward Whiskey Hill Gate 91 Comment
  RSA124761  Oemleria cerasiformis John H. Thomas 1958-2-15 6983 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  RSA451813  Oemleria cerasiformis L. S. Rose 1937-3-20 37004 San Mateo Moist Hills, Skyline Blvd. W. of Tanforan. 183 Comment
  UC311169  Oemleria cerasiformis A. D. E. Elmer Mar 1903 4579 San Mateo Woodside Comment
  CAS-BOT-BC140444  Oemleria cerasiformis Mrs. Geo. H. C. Meyer 1915-3-1 s.n. San Mateo Easton Comment
  POM275613  Oemleria cerasiformis Lyman D. Benson 1929-3-5 978 San Mateo Road from Searsville Lake to King's Mountain. Comment
  CHSC1969  Oenanthe sarmentosa A. Goekler 1929-5-10 San Mateo Moss Beach. Comment
  POM259822  Oenothera elata subsp. hookeri L. R. Abrams, Ira L. Wiggins 1939-6-3 438 San Mateo 2 miles north of Pigeon Point Lighthouse Comment
  RSA648323  Oenothera ovata J. Doty 1969-3-27 606 San Mateo San Gregorio State Beach Park. 15 Comment
  JROH2993  Olea europaea John H. Thomas 1977-1-23 18462 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS11663  Orobanche californica subsp. californica Dr. L. M. Newlon 1919-9-7 68 San Mateo Pillar Point, northern end of Half Moon Bay. Comment
  JEPS126148  Orobanche californica subsp. californica Alison Colwell with A. Sanders 2004-7-24 04 -196 San Mateo Shelter Cove, near Pacifica Comment
  JEPS6047  Orobanche californica subsp. californica V. F. Hesse 1954-7-30 1346 San Mateo Near Pebble Beach. Comment
  SEINET200711  Orobanche californica subsp. californica L. M. Newlon 1919-9-7 68 San Mateo Pillar Point northern end of Half Moon Bay Comment
  CAS-BOT-BC502777  Orobanche californica subsp. californica W. A. Setchell 1909-8-29 173 San Mateo Farallone City Comment
  RSA107077  Orthocarpus densiflorus L. S. Rose 1956-5-7 56064 San Mateo Skyline Blvd west of San Mateo. 183 Comment
  SEINET12265143  Orthocarpus lithospermoides G. A. McCallum 1933-1 s.n. San Mateo in Spring Valley Comment
  POM319922  Orthocarpus pusillus Barbara Shervanick 1973-4-1 801 San Mateo San Bruno Mt. at first summit at end of Crocker Rd. Comment
  SEINET8723036 Image available Osmaronia cerasiformis Lewis S. Rose 1937-1 37004 San Mateo Skyline Blvd. , W. of Tanforan Alt. 600 ft. 183 Comment
  RSA119325  Osmorhiza berteroi S. S. Tillett, I. Sternback 1956-6-24 540 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  JROH304  Osmorhiza berteroi John Hunter Thomas 1992-5-26 25354 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  POM287588  Osmorhiza berteroi Lyman Benson 1930-5-3 2115 San Mateo Woods, above Woodside, Santa Cruz Mtns. 366 Comment
  CAS-BOT-BC166716  Oxalis albicans subsp. pilosa Peter Rubtzoff 1975-5-21 7979 San Mateo San Bruno Mountains. Saddle area north of Guadalupe Canyon Parkway and west of Radio Road junction. Comment
  RSA120752  Oxalis oregana S. S. Tillett, I. Sternback 1956-6-24 524 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  POM353456  Oxalis oregana Paul C. Silva 1948-1-31 2630 San Mateo Old La Honda Grade, 1/2 mile south of Skyline Blvd 488 Comment
  POM177457  Oxalis pes-caprae L. R. Abrams, I. L. Wiggins 1930-11-13 176 San Mateo Along Skyline Blvd. near Colma Comment
  CAS-BOT-BC318248  Packera breweri Amos Arthur Heller 1907-5-23 8565 San Mateo Back of San Mateo on the Half Moon Bay road. Comment
  JROH5339  Panicum capillare Ann Lambrecht 2006-8-23 29 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek near Dennis Martin marker. 71 Comment
  RSA176768  Parapholis incurva John H. Thomas 1963-5-20 10138 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC265661  Paspalum distichum A. D. E. Elmer 1901-7-1 2876 San Mateo Searsville Comment
  POM207798  Paspalum distichum C. F. Baker 1902-10-20 1836 San Mateo Searsville Comment
  UCD88912  Paspalum distichum W. R. Dudley 1903-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Searsville Lake. Comment
  JEPS10360  Pedicularis densiflora W. L. Jepson 1922-3-19 9544 San Mateo Buri-Buri Ridge Comment
  UC306599 Image available Pedicularis dudleyi A. D. E. Elmer June, 1903 4289 San Mateo Iverson's Place Pescadero Creek; Iverson's Place, Pescadero Creek, San Mateo Co. Comment
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Feb 28 2011
  UCSC003377  Pelargonium grossularioides Randall Morgan 2001-5-5 3725 San Mateo south of Franklin Point, San Mateo County Comment
  CAS-BOT-BC207021  Pelargonium vitifolium L. R. Abrams; I. L. Wiggins 1939-6-3 437 San Mateo 2 miles north of Pigeon Point Lighthouse Comment
  CAS-BOT-BC207024  Pelargonium vitifolium John Thomas Howell 1932-12-21 10864 San Mateo Along road just south of Pescadero. Comment
  CAS-BOT-BC207033  Pelargonium vitifolium Ira L. Wiggins 1929-5-10 3675 San Mateo Roadside between Pigeon Point and Pescadero. Comment
  CDA4422  Pelargonium vitifolium T. C. Fuller 1960-10-5 5198 San Mateo Along old highway right-of-way, Highway 1, 2.5 miles south of Pebble Beach State Park. 0 Comment
  JEPS23863  Pelargonium vitifolium J. H. Thomas 1959-8-16 8066 San Mateo about 2 mi n Pigeon Point (along the coast) 15 Comment
  JEPS81003  Pelargonium vitifolium Edward Lee with H. L. Mason 1935-6-16 1530 San Mateo between Pigeon Point and San Gregorio Comment
  JEPS89368  Pentachaeta bellidiflora Dean W. Taylor 1994-5-10 14262 San Mateo ca. 300 meters s.e. of junction of Edgewood Rd. & Canada Rd. Edgewood Park (ca. 200 meters w. of trail parallel to & on w. side of Hwy. 280); Santa Cruz Mts., Woodside 7 1/2 Quad. 1973 ed., Edgewood Par 137 Comment
  CAS-BOT-BC77012  Pentagramma triangularis subsp. triangularis David D. Keck 1932-2-12 1365 San Mateo La Honda Road, east slope of Coast Range above Searsville Lake. 304 Comment
  JROH106  Pentagramma triangularis subsp. triangularis John H. Thomas 1955-5-6 4983 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH109  Pentagramma triangularis subsp. triangularis John H. Thomas 1968-3-17 14194 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC222702  Perideridia gairdneri subsp. gairdneri V. F. Hesse 1954-7-30 1344 San Mateo Near Pebble Beach 15 Comment
  JROH307  Perideridia kelloggii John H. Thomas 1962-7-15 9914 San Mateo Jasper Ridge Biological Preserve, Stanford University; near northern end of ridge Comment
  JROH310  Perideridia kelloggii John H. Thomas 1972-8-18 16148 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM132815  Perideridia kelloggii A. D. E. Elmer 1901-09 3411 San Mateo Crystal Springs Comment
  JROH3283  Persicaria punctata John H. Thomas 1976-10-16 18414 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along or near San Francisquito Creek from the low flow crossing to the vicinity of the old fireplace ruins downstream. Comment
  CAS-BOT-BC419386  Persicaria punctata Roxana S. Ferris 1945-9-25 11107 San Mateo At Pedro Point, State Highway #1 Comment
  CAS-BOT-BC419391  Persicaria punctata George Oberlander 1949-8-20 387 San Mateo San Francisco Watershed Reserve. San Andreas Lake Comment
  CAS-BOT-BC330312  Petasites frigidus var. palmatus W. R. Dudley 1894-3-23 s.n. San Mateo Santa Cruz Mountain Peninsula. By La Honda Creek, Redwoods above hotel Comment
  CDA8458  Petasites frigidus var. palmatus T. C. Fuller 1960-4-2 4084 San Mateo Alpine Road, 0.8 mile east of Pescadero Road, 2.8 miles southeast of La Honda. 0 Comment
  UC1301047  Petasites frigidus var. palmatus Helen K. Sharsmith 1963-3-23 5249 San Mateo Alpine Creek Canyon San Francisco Bay Region, Santa Cruz Mountains 243 Comment
  RSA427691B  Phacelia californica Glenn A. Gorelick 1967-4-15 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  SBBG51579  Phacelia californica J. Doty 1969-3-26 596 San Mateo 100 yds E of the jct of St hwys 35 and 92 Comment
  POM65455  Phacelia californica A. D. E. Elmer 1903-04 4855 San Mateo Crystal Springs Lake. Comment
  UC75119  Phacelia distans C. F. Baker 1903-4-6 1898 San Mateo San Bruno Hills Comment
  POM128434  Phacelia distans L. R. Abrams 1902-4-13 2345 San Mateo San Mateo Canyon. Comment
  UC511347  Phacelia divaricata Lyman Benson 1931-3-15 2639 San Mateo Emerald Lake San Francisco Bay Watershed, Santa Cruz Mt. Range, Redwood C 152 Comment
  RSA128862  Phacelia divaricata W. R. Dudley 1896-4-4 s.n. San Mateo Near Crystal Springs Lake Comment
  UC881192  Phacelia malvifolia John Thomas Howell 1938-5-1 13768 San Mateo Colma Canyon Comment
  JROH5354  Phalaris aquatica John H. Thomas 1974-6-27 17446 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just outside of the Goya gate. 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
  UCD88567  Phalaris californica P. B. Kennedy 1916-5-1 s.n. San Mateo Crocker Estate, Burlingame. Comment
  CAS-BOT-BC250646  Phalaris minor John Thomas Howell 1937-7-5 13099 San Mateo Redwood City along Bayshore Highway Comment
  RSA22129  Phalaris minor J. T. Howell 1937-7-5 13099 San Mateo Redwood City, along Bayshore Highway Comment
  SD38211  Phoradendron leucarpum subsp. tomentosum Edith A. Purer 1934-8-14 5914 San Mateo On highway, west of Stanford University campus Comment
  CAS-BOT-BC251002  Phyllostachys bambusoides Elizabeth McClintock; Paul Reeberg 1988-4-27 s.n. San Mateo San Bruno Mountains. 40 feet up trail from GCP towards Old Quarry in Colma Canyon, on south side of trail 91 Comment
  CAS-BOT-BC142225  Physocarpus capitatus George Oberlander 1950-7-15 1041 San Mateo San Andreas Valley - San Francisco Watershed Reserve Comment
  CAS-BOT-BC206939  Pickeringia montana var. montana W. R. Dudley 1893-5-27 s.n. San Mateo Between Woodside and King's Mtn. - Santa Cruz Peninsula Comment
  JEPS46880  Pinus radiata W. L. Jepson 1910-8-18 4166 San Mateo Ano Nuevo Creek Comment
  CAS-BOT-BC137315  Piperia elegans L. R. Abrams 1909-8-2 4274 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  UCSC004667  Piperia michaelii Randall Morgan 1992-1 1 .99E+11 San Mateo Pacifica, Rockaway Beach Comment
  UC200768  Plagiobothrys chorisianus C. F. Baker 1902-3-30 429 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC228125  Plagiobothrys chorisianus George Oberlander 1950-4-23 804 San Mateo San Francisco Watershed Reserve. Fire trail, to of Sweeney Ridge Comment
  CAS-BOT-BC228163  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1900-3-18 s.n. San Mateo The Santa Cruz Mountain Peninsula. Head of Andreas Reservoir Comment
  CAS-BOT-BC228076  Plagiobothrys chorisianus var. hickmanii Otto M. Sokol 1953-5-9 61 San Mateo Pebble Beach Comment
  CAS-BOT-BC228171  Plagiobothrys chorisianus var. hickmanii Class Collection 1940-1-1 s.n. San Mateo Between Pescadero and Ano Nuevo Point Comment
  UCD120893  Plagiobothrys nothofulvus R. E. Dengler 1960-4-12 20 San Mateo Jasper Ridge, Stanford Biological Reserve. 121 Comment
  HSC16818  Plantago coronopus R. E. Jones 1966-4-4 35 San Mateo Ano Nuevo Beach Comment
  UCD124413  Plantago elongata June McCaskill 1954-5-8 293 San Mateo Moss Beach. Comment
  CHSC59771  Plantago erecta Jan M. Karaz 1979-5-22 29 San Mateo 500 ft west of Canada College Campus Drive, 1.8 mi west of Hwy 280. 5 Comment
  JROH3110  Plantago erecta John H. Thomas 1961-4-29 9177 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3115  Plantago erecta John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM283963  Plantago erecta Arthur L. Cohen 1935-4-21 623 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  SBBG51590  Plantago lanceolata J. Doty 1969-3-26 597 San Mateo 100 yards E of the jct of State Hwy 35 and 92 Comment
  JROH3134  Plantago major John Hunter Thomas 1977-6-16 18788 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM283861  Plantago maritima Lyman Benson 1930-6-14 2153 San Mateo San Gregorio. 30 Comment
  JEPS15530  Plantago maritima var. californica G. Thomas Robbins 1956-8-18 3736 San Mateo near mouth of Pomponio Creek Comment
  UC1192029  Plantago subnuda Malcolm A. Nobs and S. Galen Smith 1949-8-26 1583 San Mateo about 1 mi s Half Moon Bay Comment
  RSA18360  Platanthera leucostachys Carl B. Wolf 1929-5-25 3728 San Mateo Pebble Beach, S of Pescadero. Comment
  CAS-BOT-BC92012  Platystemon californicus A. D. E. Elmer 1903-6-1 4853 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC92015  Platystemon californicus John H. Thomas 1969-4-24 14904 San Mateo near Canada College, Redwood City, near Farm Hill Drive. Comment
  POM149322  Platystemon californicus var. californicus Copeland 1903-5-24 3255 San Mateo Above Crystal Springs Lake Comment
  JROH4242  Plectritis congesta subsp. brachystemon John H. Thomas 1974-5-3 17239 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5878  Plectritis congesta subsp. brachystemon Diane Renshaw 2014-4-30 1222 San Mateo Jasper Ridge Biological Preserve, Stanford University; by fallen tree between Alan's Mountain (utility pole mound) and San Francisquito Creek 89 Comment
  JROH5951  Plectritis macrocera John Rawlings 2017-4-9 2017 San Mateo Jasper Ridge Biological Preserve, Stanford University; path to Global Change site south of Field Station visitor parking lot. 117 Comment
  JEPS71266  Poa annua unknown 1919-7-22 211 San Mateo Ano Nuevo Comment
  UCD90352  Poa annua W. R. Dudley 1894-5-1 s.n. San Mateo Crystal Springs. Comment
  CAS-BOT-BC247424  Poa pratensis W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of hill at Sneath's Ranch, near Millbrae Comment
  JROH5418  Poa pratensis subsp. pratensis John Rawlings 2007-6-1 0906 San Mateo Jasper Ridge Biological Preserve, Stanford University; west side of Road L 107 Comment
  JROH5419  Poa pratensis subsp. pratensis John Rawlings 2008-5-13 1000 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Ranger Bath, Searsville townsite 107 Comment
  CAS-BOT-BC237725  Poa secunda subsp. juncifolia Dr. E. B. Copeland 1903-4-20 1920 San Mateo San Andreas Lake Comment
  CAS-BOT-BC243118  Poa secunda subsp. secunda W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Summit Springs, Kings Mountain Comment
  CAS-BOT-BC539283  Poa secunda subsp. secunda John Rawlings; Ken Hickman 2015-6-8 1575 San Mateo Caltrans right-of-way above Hwy 92 E of Hwy 280, downslope from San Francisco Watershed fenceline 118 Comment
  JROH6181  Poa secunda subsp. secunda John Rawlings 2004-4-4 786 San Mateo Jasper Ridge Biological Preserve, Stanford University; east serpentine near Escobar Gate. 165 Comment
  JROH2856  Pogogyne serpylloides John H. Thomas 1966-4-29 11588 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD147020  Pogogyne serpylloides Robert E. Preston 2011-6-16 2865 San Mateo Santa Cruz Mtns, Oil Creek watershed, 1.8 mi NW of Waterman Gap. 268 Comment
  UC107058  Polemonium carneum Mrs. Frances Howland 1901-3-30 San Mateo Lake Pelarcitos Comment
  CAS-BOT-BC413757  Polygonum argyrocoleon John Thomas Howell 1953-6-3 29057 San Mateo Bayshore Highway, Redwood City Comment
  UC1101152  Polygonum lapathifolium Malcolm A. Nobs and S. Galen Smith 1949-8-26 1577 San Mateo pond in sand dunes about 1 mi s Half Moon Bay Comment
  POM181651  Polygonum paronychia H. F. Copeland 1928-2-26 987 San Mateo Montara Comment
  UC1187045  Polygonum paronychia V. F. Hesse 1956-11-15 2137 San Mateo coastal bluff between Pigeon Point and Pebble Beach 6 Comment
  UC483492  Polygonum paronychia Ira L. Wiggins 1929-7-4 3795 San Mateo Pescadero Beach; sea bluffs Comment
  UC1936265  Polypodium Robert Price 1983-1-10 627 San Mateo Pulgas Ridge, just ENE of Crystal Springs Reservoir, ca. 1/8 mi ENE of entry gate on Bunker Hill Ave. Comment
  CAS-BOT-BC76904  Polypodium californicum Roxana S. Ferris 1921-4-7 2133 San Mateo Santa Cruz Mountain Peninsula - San Bruno Mt. 213 Comment
  CAS-BOT-BC76913  Polypodium californicum Reed C. Rollins 1942-4-30 3014 San Mateo San Bruno Hills, 1 mile south of Daly City. Comment
  RSA485490  Polypodium californicum Lyman Benson 1929-3-5 977 San Mateo King s Mountain Comment
  CAS-BOT-BC76901  Polypodium californicum Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain - grassy slope above Hillside Blvd., south San Francisco Comment
  CAS-BOT-BC76910  Polypodium californicum W. R. Dudley 1896-2-16 s.n. San Mateo Santa Cruz Mountain Peninsula - Devil's Canyon, Black Mountain Comment
  CAS-BOT-BC76803  Polypodium glycyrrhiza W. R. Dudley 1893-2-19 s.n. San Mateo Santa Cruz Peninsula - near La Honda Comment
  UC42919  Polypodium scouleri J. Burtt Davy 1893-6-22 San Mateo top of Pilarcitos Canyon Comment
  CAS-BOT-BC72107  Polypodium scouleri Walter Knight; Irja Knight 1964-4-25 695 San Mateo unspecified Comment
  CAS-BOT-BC237343  Polypogon monspeliensis Ned Cahill 1974-6-21 339 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles W from Redwood City Comment
  CAS-BOT-BC237356  Polypogon monspeliensis Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mile N of Pigeon Point and about 39 miles S of San Francisco Comment
  CHSC57112  Polypogon monspeliensis Steven Triano 1988-5-24 196 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  JROH5450  Polypogon monspeliensis John Hunter Thomas 1980-11-27 20189 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta. Comment
  SEINET200159 Image available Polypogon monspeliensis Malcolm A. Nobbs, S. Galen Smith 1949-8-25 1563 San Mateo Marshes at Sharp Park. 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
  SD27443  Polystichum aculeatum Kate O. Sessions 1879-1 San Mateo La Honda Comment
  CAS-BOT-BC72220  Polystichum dudleyi W. R. Dudley 1894-3-24 s.n. San Mateo Near bridge below La Honda Comment
  CAS-BOT-BC72223  Polystichum dudleyi Thomas H. Lindenmeyer 1981-4-15 s.n. San Mateo Woodside, between Bear Gulch and Appletree Gulch Comment
  NY149446  Polystichum dudleyi W. R. Dudley 1903-5-2 s.n. San Mateo Santa Cruz Peninsula: near bridge, Peters Creek, Canta Cruz Mts. Comment
  CAS-BOT-BC76608  Polystichum munitum J. H. Thomas 1949-3-29 198 San Mateo King's Mountain Comment
  CAS-BOT-BC384614  Polystichum munitum M. K. Wicksten 1991-7-8 s.n. San Mateo Huddart PRK Comment
  CAS-BOT-BC76645  Polystichum munitum Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain - Trillium Gulch Comment
  RSA189827  Polystichum munitum Delzie Demaree 1932-2-14 8922 San Mateo Kings Mountain. P.O. San Carlos. Comment
  JROH3841  Populus trichocarpa John H. Thomas 1976-4-30 18099 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Dam. Comment
  CAS-BOT-BC267165  Potamogeton foliosus W. R. Dudley 1906-10-12 s.n. San Mateo Santa Cruz Mountain Peninsula. Mud Lakes, Coalmine Ridge, Pond 1 Comment
  CAS-BOT-BC453678  Potamogeton gramineus W. R. Dudley 1910-5-26 s.n. San Mateo Santa Cruz Mountain Peninsula. Coal Mine Ridge near Black Mountain Comment
  SEINET9629541 Image available Potamogeton illinoensis Ira L. Wiggins, Roxana S. Ferris 1939-8-2 9292 San Mateo Ano Nuevo Point. Comment
  POM193749  Potamogeton nodosus H. L. Mason 1921-5-28 s.n. San Mateo Unspecified. Comment
  SEINET11665020  Potamogeton nodosus H. L. Mason 1921-5-28 s.n. San Mateo back of New Years Pt Comment
  CAS-BOT-BC454001  Potamogeton pectinatus W. R. Dudley 1909-10-31 s.n. San Mateo Santa Cruz Mountain Peninsula. Menlo Park Reservoir. Comment
  CAS-BOT-BC454004  Potamogeton pectinatus W. R. Dudley 1909-10-31 s.n. San Mateo Santa Cruz Mountain Peninsula. Menlo Park Reservoir Comment
  JROH5517  Potamogeton pusillus John Hunter Thomas 1981-7-12 20710 San Mateo Jasper Ridge Biological Preserve, Stanford University. In lake along the shore Comment
  CAS-BOT-BC389769  Potentilla anserina R. D. Hennessey 1964-4-26 68 San Mateo Area in which Pilarcitos Creek empties into ocean Comment
  CAS-BOT-BC141937  Potentilla anserina subsp. pacifica W. R. Dudley 1896-4-18 s.n. San Mateo Pebble Beach at Pescadero - Santa Cruz Peninsula Comment
  CAS-BOT-BC141938  Potentilla anserina subsp. pacifica Adele Lewis Grant 1917-5-6 941 San Mateo Pebble Beach at Pescadero Comment
  JEPS121447  Primula clevelandii var. patula Adam C. Schneider with C. Matt Guilliams 2013-3-9 22 San Mateo Crystal Springs Reservoir Comment
  JROH4676  Prosartes hookeri John Hunter Thomas 1985-4-25 23567 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD139791  Prosartes hookeri Janet Jacob 1951-4-1 53 San Mateo 7 miles east of Pescadero. 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
  CAS-BOT-BC517389  Prosartes smithii D. D. Davis 1903-5-1 s.n. San Mateo Santa Cruz Peninsula, near summit La Honda Road Comment
  CAS-BOT-BC517395  Prosartes smithii H. L. Mason 1917-4-1 s.n. San Mateo Kings Mountain Comment
  SD27751  Prunella vulgaris var. lanceolata Carl B. Wolf 1927-6-29 551 San Mateo Along the coast south of Pescadero at Pebble Beach. Comment
  CAS-BOT-BC158170  Prunus emarginata Walter Knight; Irja Knight; James Roof 1965-5-15 1198 San Mateo Bitter Cherry Ravine Comment
  POM140371  Prunus emarginata C. F. Baker 1902-5-1 691 San Mateo Crystal Springs Lake. Comment
  UC12742  Prunus emarginata J. Burtt Davy 1895-4-20 1032 San Mateo Lake San Andreas Comment
  UC12750  Prunus emarginata J. Burtt Davy 1895-4-20 1041 San Mateo San Mateo Creek Comment
  CAS-BOT-BC154656  Prunus subcordata Le Roy Abrams 1901-3-1 1168 San Mateo Portola, Los Trancos Creek Comment
  RSA112479  Prunus subcordata H. L. Mason 1921-3-9 s.n. San Mateo Near zoo, shack. At edge of Redwoods. Jasper Ridge. Comment
Read comments
Sep 19 2011
  CAS-BOT-BC356475  Pseudognaphalium beneolens George Oberlander 1949-7-30 336 San Mateo San Francisco Watershed Reserve. Sweeney Ridge 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
  JROH766  Pseudognaphalium californicum John Hunter Thomas 1980-5-8 19940 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC356862  Pseudognaphalium californicum Barrett Anderson; Peter Rubtzoff 1988-4-22 3658 San Mateo San Bruno Mountain. Saddle area north of Guadalupe Canyon Parkway 275 Comment
  CAS-BOT-BC356869  Pseudognaphalium californicum R. E. Frenkel 1963-12-7 337 San Mateo On Spring Valley Ridge Road, SFWD, at junction of Spring Valley Ridge and Whiting Ridge Roads 347 Comment
  JROH774  Pseudognaphalium luteoalbum John H. Thomas 1964-11-15 10527 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD30773  Pseudognaphalium luteoalbum Edith A. Purer 1933-8-13 5427 San Mateo Belmont, along roadside Comment
  CAS-BOT-BC344872  Pseudognaphalium ramosissimum Peter Rubtzoff 1978-9-16 9272 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC357504  Pseudognaphalium ramosissimum Phillip C. Wheeler 1965-8-16 s.n. San Mateo San Bruno Mountain. The Great Meadow adjacent to upper Colma Canyon Comment
  RSA18445  Pseudognaphalium stramineum C. B. Wolf 1927-6-29 563 San Mateo South of Pebble Beach near Pescadero Comment
  UC1536874  Pseudognaphalium stramineum G. H. True Jr. 1936-6-7 489 San Mateo 2 mi s Pescadero 15 Comment
  CAS-BOT-BC85915  Pseudotsuga menziesii Miss O. Boring 1897-8-31 s.n. San Mateo Santa Cruz Peninsula, King's Mt. Comment
  RSA384644  Pseudotsuga menziesii L. H. Jones 1909-3-13 s.n. San Mateo King s Mountain Road, Stanford University. 610 Comment
Read comments
Sep 22 2011
  NY63952  Pseudotsuga menziesii var. menziesii A. D. E. Elmer 04 1903 4562 San Mateo King's Mountain Comment
  CAS-BOT-BC362023  Psilocarphus tenellus Peter H. Raven 1950-4-16 1804 San Mateo Summit ridge, San Bruno Mts. 243 Comment
  JROH1196  Psilocarphus tenellus John Hunter Thomas 1992-4-23 25146 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  SD39954  Pteridium aquilinum var. pubescens Edith A. Purer 1933-7-27 5363 San Mateo Pigeon Point Comment
  SEINET3086525 Image available Pterostegia drymarioides C. W. Sharsmith 1947-4-13 6756 San Mateo Pescadero Beach near Pescadero Point. 50 Comment
  CDA36720  Puccinellia maritima Michael Perlmutter 2011-6-15 San Mateo Burlingame, Sanchez Marsh. 0 Comment
  UCD92953  Puccinellia maritima William Anderson 1968-4-20 s.n. San Mateo Redwood City. NE of the boat harbor on Bait Island. Comment
  JROH3755  Pyracantha fortuneana John H. Thomas 1967-6-1 12975 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC460837  Pyrola aphylla A. D. E. Elmer 1903-6-1 4297 San Mateo Pescadero Comment
  CAS-BOT-BC460838  Pyrola aphylla W. R. Dudley 1895-6-7 s.n. San Mateo Santa Cruz Peninsula: 4000 feet above Iverson's; Butano Ridge Comment
  RSA136301  Pyrrocoma racemosa W. R. Dudley 1901-9-4 s.n. San Mateo Cooley's Landing near Palo Alto. Comment
  CAS-BOT-BC62713  Quercus X chasei B. Bartholomew 1983-8-28 1482 San Mateo 1.2 mi. N of Skyline Blvd. on Page Mill Road on the N side of the road, close to the Santa Clara County line 640 Comment
  CAS-BOT-BC61707  Quercus agrifolia Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Buckeye Canyon, near ridge, San Bruno Mountain Comment
  CAS-BOT-BC61708  Quercus agrifolia Walter Knight; Irja Knight 1964-9-2 722 San Mateo About 1/3 way up Buckeye Canyon - west facing slope, San Bruno Mountain Comment
  UC565407  Quercus agrifolia Chas. M. Belshaw 1936-1-25 1457 San Mateo 2.8 mi w Woodside (Kings Mountain road); South Coast Range Comment
  UCD45039  Quercus agrifolia R. E. Dengler 1960-4-10 10 San Mateo Tree ca. 7 meters tall; 15 degrees west-facing slope near bottom of gully, 10 meters away from permanent spring below, elevation 525 feet; Jasper Ridge, Standford Biological Reserve, San Mateo County, California. 160 Comment
  SEINET13953029 Image available Quercus agrifolia Lewis S. Rose 1964-1 64012 San Mateo Emerald Lake, west of Redwood City hills, 400 feet in altitude 122 Comment
  CAS-BOT-BC62304  Quercus chrysolepis Phillip C. Wheeler 1965-5-25 s.n. San Mateo San Bruno Mountain, Buckeye Canyon Comment
  CAS-BOT-BC62310  Quercus chrysolepis Margaret Barry 1938-5-15 s.n. San Mateo Woods on Coal Mine Ridge Comment
  JROH2538  Quercus douglasii Carol Zabel 2004-8-11 52 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 15 between Vestal's exclosure and intersection with Trail 16, north side of trail Comment
  RSA623990  Quercus douglasii R. Hoffough 1929-4-27 272 San Mateo Jasper Ridge, Santa Cruz Mountains Comment
Read comments
Dec 6 2010
  UC1135557  Quercus durata G. E. Sindel 1935-8-27 338 San Mateo 3.37 mi wnw Woodside; Santa Cruz Quad. 152 Comment
  JROH2482  Quercus durata var. durata John H. Thomas 1968-5-22 14458 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2483  Quercus durata var. durata John H. Thomas 1970-4-28 15608 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC105392  Quercus kelloggii W. R. Dudley 1901-5-4 s.n. San Mateo Santa Cruz Mountain Peninsula, Coal Mine Canon [canyon] Comment
  CAS-BOT-BC105399  Quercus kelloggii J. I. McMurphy 1904-3-7 48 San Mateo Santa Cruz Mountain Peninsula. Foothills near Woodside 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
  UCD46744  Quercus kelloggii Edmond Holm 1993-10-20 s.n. San Mateo (Q. parvula Greene var. shrevei (Muller) Nixon. California, San Mateo Co.; Huddart Park, near Miwok Picnic Area. Comment
  CAS-BOT-BC62893  Quercus lobata Ned Cahill 1974-4-23 159 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City 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
  UCD14074  Quercus parvula var. shrevei Stephen K. Langer 1988-11-5 s.n. San Mateo California, San Mateo Co.; Jones Gulch Y.M.C.A. Camp. Comment
  CAS-BOT-BC134777  Quercus wislizeni Arthur Menzies 1962-2-25 s.n. San Mateo San Bruno Mt. Comment
  CAS-BOT-BC134778  Quercus wislizeni John Thomas Howell 1964-10-8 40961 San Mateo Portola State Park Comment
  CAS-BOT-BC134787  Quercus wislizeni James McMurphy 1909-5-26 s.n. San Mateo San Bruno Mountainin northern part of county. 396 Comment
  SEINET13954082 Image available Quercus wislizeni John Thomas Howell 1964-1 40961 San Mateo Portola State Park Comment
  JROH5828  Quercus wislizeni var. frutescens John Rawlings 2016-12-29 1954 San Mateo Jasper Ridge Biological Preserve, Stanford University; about 120 yards north of Road F opposite its intersection with Trail 17 to Goya Gate 178 Comment
  JROH5829  Quercus wislizeni var. frutescens John Rawlings 2016-12-29 1954 B San Mateo Jasper Ridge Biological Preserve, Stanford University; about 120 yards north of Road F opposite its intersection with Trail 17 to Goya Gate 178 Comment
  CAS-BOT-BC362547  Rafinesquia californica Fred Hemphill 1973-5-14 824 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC362552  Rafinesquia californica Theo. C. Zschokke 1903-7-10 s.n. San Mateo Santa Cruz Mountain Peninsula. New Grade Road, Black Mt. Comment
  SEINET12086684  Ranunculus W. R. Dudley 1904-1 s.n. San Mateo Corte Madera Creek, Santa Cruz Mountain Peninsula Comment
  JEPS60724  Ranunculus californicus W. L. Jepson 1921-4-3 9116 San Mateo canyon near Colma Comment
  POM268420  Ranunculus californicus Lyman Benson 1931-3-15 s.n. San Mateo Emerald Lake; Redwood City; Mt. Range: Santa Cruz 152 Comment
  POM268422  Ranunculus californicus Arthur L. Cohen 1935-4-21 619 San Mateo Jasper Ridge, San Francisquito Creek. 122 Comment
  RSA399413  Ranunculus californicus Paul C. Silva 1948-1-31 2627 San Mateo Old La Honda Grade, 1 mi. S of Skyline Blvd. 457 Comment
  UCD95985  Ranunculus californicus R. S. Woglum 1935-5-25 1156 San Mateo San Francisco area, Skyline Drive. Comment
  CAS-BOT-BC378524  Ranunculus californicus var. californicus Margaret A. Barry 1937-5-8 56 San Mateo grassland on Coal Mine Ridge Comment
  CAS-BOT-BC378533  Ranunculus californicus var. californicus J. H. Thomas 1959-4-1 209 San Mateo serpentine hills west of Redwood City Comment
  CAS-BOT-BC378540  Ranunculus californicus var. californicus Ned Cahill 1974-4-23 165 San Mateo serpentine fields bordered by chaparral, near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC378726  Ranunculus californicus var. cuneatus Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  RSA0030883  Ranunculus californicus var. cuneatus Lyman Benson 1930-3-2 1947 San Mateo Moss Beach. 15 Comment
  JROH3482  Ranunculus hebecarpus John H. Thomas 1976-4-19 18083 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail in oakwoodland near dam. Comment
  JEPS85713  Ranunculus lobbii L. R. Heckard and J. H. Thomas 1972-4-16 2889 San Mateo ca 1 1/2 mi s Pulgas Water Temple (along old Canada road (private), sw of Upper Crystal Springs Reservoir) 121 Comment
  UC204201  Ranunculus muricatus A. D. E. Elmer June 1903 4661 San Mateo San Pedro Comment
  JEPS55061  Ranunculus orthorhynchus var. bloomeri Inez Smith Mar. 1915 San Mateo Hillsboro Comment
  POM148951  Ranunculus orthorhynchus var. bloomeri A. D. E. Elmer 1903-06 4665 San Mateo San Pedro. Comment
  UC13950  Ranunculus orthorhynchus var. bloomeri Alice Eastwood Feb. 1896 San Mateo Comment
  JROH5871  Raphanus sativus Ann Lambrecht 2011-7-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; at Bear Creek crossing near Preserve boundary fence Comment
  RSA100994  Rhamnus californica G. Oberlander 1949-7-30 246 San Mateo Crest of Sweeney Ridge, San Francisco Watershed reserve Comment
  UC1071558  Rhamnus californica T. Tyrrell 1928-9-26 9 San Mateo 2 mi s San Gregorio; Santa Cruz Quad. 91 Comment
  UC592791  Rhamnus californica unknown 1927-12-31 1472 San Mateo 0.5 way up Kings Mt. Comment
  UC870785  Rhamnus californica F. A. Parton Apr 1908 San Mateo Jasper Ridge Santa Cruz Mountain Peninsula 91 Comment
  CAS-BOT-BC56668  Rhododendron occidentale A. D. E. Elmer 1903-6-1 4298 San Mateo Butano Creek Comment
  UC306552  Rhododendron occidentale A. D. E. Elmer 1903-6-1 4298 San Mateo Butano Creek Comment
  CAS-BOT-BC92490  Ribes aureum var. gracillimum A. D. E. Elmer 1903-5-1 4514 San Mateo Portola. Comment
  CAS-BOT-BC92998  Ribes californicum var. californicum Lewis S. Rose 1933-6-9 33226 San Mateo Belmont. Comment
  CAS-BOT-BC93012  Ribes californicum var. californicum Margaret A. Barry 1938-4-21 224 San Mateo Coal Mine Ridge. Comment
  JROH2638  Ribes californicum var. californicum Duncan M. Porter 1961-2-8 742 San Mateo Jasper Ridge Biological Preserve, Stanford University. N face of sandstone cliff at N end of ridge above San Francisquito Creek. Comment
  CAS-BOT-BC173084  Ribes divaricatum var. pubiflorum F. J. Jack 1894-3-24 s.n. San Mateo La Honda Road Comment
  CAS-BOT-BC173467  Ribes malvaceum A. D. E. Elmer 1903-3-1 535 San Mateo Portola Comment
  CAS-BOT-BC173468  Ribes malvaceum Paul F. Covel 1936-4-24 281 San Mateo Skyline Blvd. Comment
  RSA0021676  Ribes malvaceum Lyman Benson 1931-1-25 2576 San Mateo Continuation of Page Mill Road toward La Honda. Stanford University, Santa Cruz Mountain Range. 244 Comment
  CAS-BOT-BC212826  Ribes menziesii Josephine M. Johnson 1918-8-1 s.n. San Mateo Unspecified Comment
  CAS-BOT-BC212843  Ribes menziesii D. E. Breedlove 1974-5-13 36202 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  UC566015  Ribes menziesii G. E. Sindel 1935-8-13 330 San Mateo San Gregorio Creek Santa Cruz Quadrangle 91 Comment
  CAS-BOT-BC212813  Ribes menziesii W. R. Dudley 1898-4-15 s.n. San Mateo Unspecified Comment
  RSA0021752  Ribes menziesii var. leptosmum I. L. Wiggins 1929-3-23 3374 San Mateo Road to Mud Lake, near Stanford University Comment
  RSA0021753  Ribes menziesii var. leptosmum S. S. Berry 1909-2-27 s.n. San Mateo Roadside near Adalanta Villa. 46 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
  SEINET13942784 Image available Ribes sanguineum Lewis S. Rose 1955-1 55041 San Mateo Kings Mountain, alt 2000 ft 610 Comment
  CAS-BOT-BC144601  Ribes sanguineum var. glutinosum James McMurphy 1906-3-9 s.n. San Mateo Near King's Mountain House Comment
  CAS-BOT-BC144604  Ribes sanguineum var. glutinosum J. H. Thomas 1949-3-31 204 San Mateo King's Mountain Comment
  CAS-BOT-BC144646  Ribes sanguineum var. glutinosum W. R. Dudley 1904-3-1 62 San Mateo Corte de Madera Creek, Santa Cruz Mts. Comment
  RSA0019100  Ribes sanguineum var. glutinosum D. D. Keck 1932-2-14 1370 San Mateo Near La Honda, Santa Cruz Mountains (3 miles north). 366 Comment
  RSA0019105  Ribes sanguineum var. glutinosum D. D. Keck 1932-6-1 1786 San Mateo 3 miles north of La Honda, Santa Cruz Mountains. 366 Comment
  CAS-BOT-BC168725  Ribes victoris Eric Walther 1919-2-23 s.n. San Mateo Woodside Comment
  POM53912  Rigiopappus leptocladus C. F. Baker 1902-5-4 754 San Mateo Woodside Comment
  RSA119750  Romanzoffia californica W. R. Dudley 1894-3-26 s.n. San Mateo Between San Mateo and Crystal Springs Reservoir; Santa Cruz Mt Peninsula. Comment
  UC24535  Romanzoffia californica J. Burtt Davy 1895-4-20 1065 San Mateo Pilarcitos Creek; ; Pilarcitos Creek, San Mateo Co. Comment
  UC306561  Romanzoffia californica A. D. E. Elmer May, 1903 4482 San Mateo towards San Mateo Crystal Springs Lake Comment
  SBBG29827  Romanzoffia suksdorfii W. R. Dudley 1909-4-27 San Mateo ponds between Woodside and Crystal Springs Reservoir Comment
  POM144072  Rorippa palustris subsp. occidentalis C. F. Baker 1902-10-20 1856 San Mateo Searsville. Comment
  CAS-BOT-BC147623  Rosa californica Alice B. Wright 1919-8-1 s.n. San Mateo Granada Comment
  UC311147  Rosa gymnocarpa A. D. E. Elmer May, 1903 4923 San Mateo Pescadero Creek; on the Iverson's Place Comment
  SEINET11918000  Rosa gymnocarpa W. R. Dudley 1906-5-8 65 San Mateo near Crystal Springs Lake, Santa Cruz Mts 91 Comment
  JROH5631  Rosmarinus officinalis John Rawlings 2014-4-4 1233 San Mateo Jasper Ridge Biological Preserve, Stanford University; 20 meters east of Goya Gate a few meters inside Preserve fence line. 195 Comment
  RSA18500  Rubus parviflorus var. velutinus Carl B. Wolf 1927-7-14 620 San Mateo 1 mile south of summit of Kings Mt on Skyline Drive. Comment
  RSA51270  Rubus parviflorus var. velutinus Peter H. Raven 1950-4-30 51270 San Mateo Montara Mtns. Ca 1/2 mile N of Montara. 91 Comment
  CAS-BOT-BC156764  Rubus spectabilis W. R. Dudley 1894-3-26 s.n. San Mateo Ravine of Spanishtown Creek Comment
  CAS-BOT-BC156773  Rubus spectabilis Walter Knight; Irja Knight 1964-5-30 613 San Mateo Colma Creek between Indian Head Rock and the Eucalyptus forest Comment
  CAS-BOT-BC158710  Rubus ulmifolius Margaret Bellue 1945-8-23 s.n. San Mateo Along creek on property in Redwood City. Comment
  CDA3942  Rubus ulmifolius var. inermis M. Leonard 1945-7-6 San Mateo Redwood City. 0 Comment
  CAS-BOT-BC157072  Rubus ursinus L. R. Abrams 1914-10-14 5129 San Mateo [Tunitos Canon] Tunitas Canyon Comment
  CAS-BOT-BC157079  Rubus ursinus L. R. Abrams 1914-10-14 5133 San Mateo Tunitas [Canon] Canyon Comment
  CAS-BOT-BC157082  Rubus ursinus L. R. Abrams 1914-10-14 5136 San Mateo Tunitas [Canon] Canyon Comment
  CAS-BOT-BC157110  Rubus ursinus John Thomas Howell 1938-6-4 13888 San Mateo Burlingame Comment
  POM261520  Rubus ursinus Alice Eastwood, John T. Howell 1938-6-26 6055 San Mateo Near Pescadero. Comment
  UC136500  Rubus ursinus C. F. Baker 1902-1-15 246 San Mateo West side King's Mountain Comment
  UC861859  Rubus ursinus R. A. Kocher 1908-4-25 San Mateo near Stanford University (San Francisquito Creek above Rock Quarry); Santa Cruz Mountain Peninsula, San Francisquito Creek 121 Comment
  CAS-BOT-BC422081  Rumex acetosella John H. Thomas 1964-4-30 10362 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  UCR12025  Rumex acetosella Coleta A. Lawler 1964-4-19 55 San Mateo 4.5 miles east of Half Moon Bay; Pilarcitos Rd, 0.5 mi NE jct Half Moon Bay Rd. 76 Comment
  CAS-BOT-BC422084  Rumex acetosella Ira L. Wiggins 1928-3-25 2945 San Mateo Moss Beach Comment
  RSA17951  Rumex acetosella Carl B. Wolf 1927-6-4 s.n. San Mateo Summit of La Honda Grade (Pollen for Dr. Malsger - San Francisco) San Mateo County Comment
  UCD101037  Rumex acetosella E. M. Johnston 1916-6-1 11 San Mateo Millbrae. Comment
  CAS-BOT-BC421821  Rumex conglomeratus Phillip C. Wheeler 1965-8-16 s.n. San Mateo San Bruno Mountain. April Brook. Comment
  CAS-BOT-BC421824  Rumex conglomeratus Josephine D. Randall 1907-7-24 290 San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  CAS-BOT-BC421568  Rumex crassus W. R. Dudley 1909-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Mussel Rock. Comment
  CAS-BOT-BC421575  Rumex crassus Lewis S. Rose 1954-10-4 54134 San Mateo Montara Comment
  UC127315  Rumex maritimus Miss Harriet A. Walker 1908-8-22 1539 San Mateo Granada Comment
  UC1537263  Rumex maritimus Gordon H. True Jr. 1937-10-16 847 San Mateo near Thornton Beach 15 Comment
  CAS-BOT-BC433821  Rumex pulcher George Oberlander 1949-7-30 342 San Mateo San Francisco Watershed Reserve. Upper Crystal Springs Lake. Comment
  JEPS39879  Rumex salicifolius var. crassus unknown 1925-5-28 15 San Mateo Salada Comment
  UC569569  Rumex salicifolius var. crassus James Arata Karakawa 1937-10-20 228 San Mateo near Montara Comment
  JROH2218  Rupertia physodes John Hunter Thomas 1980-4-10 19865 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU4472  Ruta chalepensis A. J. Hutchko 1962-5-20 100 San Mateo by seaside walk near foot of Grove St, Half Moon Bay 15 Comment
  JROH1717  Sagina apetala John H. Thomas 1971-4-25 15779 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD163747  Sagina decumbens subsp. occidentalis Peter Rubtzoff 1988-5-3 9916 San Mateo San Bruno Mountain, 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road in the northwest part of the 'Saddle' area, near its crossing of the upper part of East Fork Colma Creek. Comment
  POM163965  Sagina maxima subsp. crassicaulis Copeland 1903-6-5 3329 San Mateo Montara Point. Comment
  UCD110943  Salix exigua Lewis S. Rose 1965-3-8 65003 San Mateo Searsville Lake. 121 Comment
  HSC19942  Salix exigua var. hindsiana L. S. Rose 1965-3-8 65003 San Mateo Searsville Lake 122 Comment
  JROH3856  Salix laevigata W. R. Dudley 1894-7-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near bridge at Ramsay's above Searsville Comment
  CAS-BOT-BC125377  Salix lasiandra var. lasiandra Lewis S. Rose 1961-2-16 61004 San Mateo 3 mi. n. of La Honda 335 Comment
  CAS-BOT-BC125378  Salix lasiandra var. lasiandra Lewis S. Rose 1965-3-8 65002 San Mateo Searsville Lake 121 Comment
  JROH3871  Salix lasiandra var. lasiandra John H. Thomas 1968-5-17 14177 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3867  Salix lasiolepis Toni Corelli 2003-2-6 255 San Mateo Jasper Ridge Biological Preserve, Stanford University; west side of lake below Searsville Lab 106 Comment
  RSA119044  Salix lasiolepis L. S. Rose 1958-3-19 58012 San Mateo Princeton. 6 Comment
  CDA14167  Salix lasiolepis var. bigelovii G. F. Hrusa, B. Meese 1997-2-17 13621 A San Mateo Ano Nuevo State Park; End of Ano Nuevo Pt. Comment
  RSA119045  Salix lucida subsp. lasiandra L. S. Rose 1958-3-19 58013 San Mateo Princeton. 6 Comment
  RSA184901  Salix lucida subsp. lasiandra L. S. Rose 1965-3-8 65002 San Mateo Searsville Lake. 122 Comment
  CAS-BOT-BC126482  Salix sitchensis W. R. Dudley 1899-5-14 s.n. San Mateo So.W. of Baden Station Comment
  CAS-BOT-BC126489  Salix sitchensis A. D. E. Elmer 1903-3-1 4874 San Mateo Portola Comment
  CAS-BOT-BC126495  Salix sitchensis Phillip Wheeler 1966-10-16 s.n. San Mateo Crocker Industrial Park Comment
  CAS-BOT-BC126501  Salix sitchensis W. R. Dudley 1904-3-7 69 San Mateo Bear Gulch, Santa Cruz Mts. 213 Comment
  CAS-BOT-BC126516  Salix sitchensis W. R. Dudley 1903-5-1 s.n. San Mateo Iverson's near Pescadero Creek Comment
  RSA788840  Salix sitchensis Peter Rubtzoff 1976-3-14 8448 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  UCR109653  Salsola soda T. C. Fuller 1968-9-25 17640 San Mateo San Francisco Bay Region, Menlo Park, west end of Dumbarton Bridge 2 Comment
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May 27 2007
  UCD99304  Salsola soda T. C. Fuller 1968-9-25 17640 San Mateo w. end of Dumbarton Bridge, Menlo Park. Comment
  RSA681662  Salvia apiana Annuschka Deb 1989-8-18 s.n. San Mateo YBN [Yerba Buena Nursery] Demonstration Garden, Woodside Comment
  RSA681665  Salvia clevelandii Annuschka Deb 1989-7-19 313 San Mateo Yerba Buena Herbarium Stock Comment
  RSA218031  Salvia spathacea Walter Knight, I. Knight 1965-3-15 1218 San Mateo Colma Canyon. San Bruno Mountain. Comment
  UCD125618  Salvia spathacea Lewis S. Rose 1965-5-3 65059 San Mateo San Bruno Mountain, Colma Canyon. 60 Comment
  UC203513  Sambucus mexicana A. D. E. Elmer July, 1903 4689 San Mateo Portola Comment
  CAS-BOT-BC246018  Sambucus nigra subsp. caerulea E. K. Balls 1969-9-18 12171 San Mateo 1 mi. No of Skywood along Hwy. 84, from Woodside to junct. with Hwy. 35 Comment
  CDA34006  Sambucus racemosa D. G. Kelch 2011-3-13 11 .053 San Mateo Near Half Moon Bay along Capistrano Creek. Comment
  CAS-BOT-BC236466  Sambucus racemosa subsp. racemosa Alice Eastwood 1933-5-31 s.n. San Mateo Butano Creek Comment
  UCSB11444  Sambucus racemosa var. racemosa Olson, Jim 1962-4-17 San Mateo 5 miles southeast of Halfmoon Bay on road to San Mateo 45 Comment
  OBI8787  Sanicula arctopoides Lewis S. Rose 1965-3-25 65012 San Mateo San Bruno Mts. N end 122 Comment
  JROH319  Sanicula bipinnata Ann Lambrecht 2003-4-9 5 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11, W edge of trail, around curve SW of Collinsia heterophylla site Comment
  CAS-BOT-BC223326  Sanicula bipinnatifida J. H. Thomas 1949-4-1 212 San Mateo West of Redwood City Comment
  POM132687  Sanicula bipinnatifida A. D. E. Elmer 1903-04 s.n. San Mateo Lake San Andreas Comment
  POM288029  Sanicula bipinnatifida Lyman Benson 1931-3-15 2637 San Mateo Emerald Lake; Redwood City; Mt. Range: Santa Cruz 549 Comment
  JROH328  Sanicula crassicaulis Ynez Henderson 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  UCR121545  Sanicula crassicaulis George K. Helmkamp, E. A. Helmkamp 1999-6-28 4963 San Mateo Coast Range; Santa Cruz Mtns, Sky Londa; junction of Calif. Hwy 84 and Calif. Hwy 35, 5 mi south of central Redwood City 457 Comment
  CAS-BOT-BC166811  Sanicula crassicaulis Peter Rubtzoff 1976-6-13 8638 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; in upper part of East Fork Colma Creek canyon. Comment
  UCR122971  Sanicula laciniata George K. Helmkamp, E. A. Helmkamp 2001-6-2 6774 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
  POM204321  Satureja douglasii I. L. Wiggins 1929-7-4 3778 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  JROH348  Scandix pecten-veneris John H. Thomas 1955-5-6 5011 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4423  Schoenoplectus acutus var. occidentalis M. Whitley 1990-5-28 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By the floats on the lake. Comment
  CAS-BOT-BC111606  Schoenoplectus californicus Elizabeth McClintock; P. Reeberg 1989-5-2 s.n. San Mateo In disturbed seep 600 ft SE of the Carter/Martin intersection, Daly City 7 Comment
  UC1100791  Scirpus californicus Malcolm A. Nobs, S. Galen Smith 1949-8-25 1567 San Mateo s of Rockaway Beach Comment
  UC1154039  Scirpus cernuus J. Clausen 1939-7-1 1745 San Mateo Ano Nuevo Point Ano Nuevo Point (in depressions in stabilized dunes) Comment
  CAS-BOT-BC111062  Scirpus microcarpus Walter Knight; Irja Knight 1964-5-30 s.n. San Mateo Colma Canyon Comment
  RSA139348  Scoliopus bigelovii Lewis S. Rose 1964-2-6 64000 San Mateo Kings Mountain 610 Comment
  SEINET926250  Scoliopus bigelovii A. D. E. Elmer 1903-1 4559 San Mateo King's mountain. Comment
  SEINET12055152  Scoliopus bigelovii L. R. Abrams 1904-1 s.n. San Mateo Bear Gulch, Santa Cruz Mountains Comment
  SEINET926247  Scoliopus bigelovii H. S. Gentry 1931-1 20 San Mateo Collected 1.5 miles W of San Mateo, Half-Moon Bay Road. Comment
  UC454434  Scoliopus bigelovii Manton Feb. 1906 San Mateo Comment
  RSA18300  Scrophularia californica Carl B. Wolf 1927-5-31 416 San Mateo North end of Searsville Lake. Comment
  CDA41914  Scrophularia californica T. C. Fuller 1971-6-1 19883 San Mateo East shore of Crystal Springs Reservoir at junction of Highways 280 and 92. 0 Comment
  RSA427185  Scrophularia californica subsp. floribunda Glenn A. Gorelick 1967-4-4 s.n. San Mateo San Bruno Mts; overlooking Daly City near San Francisco. Comment
  CAS-BOT-BC376418  Scrophulariaceae Greg de Nevers 2001-9-26 12630 San Mateo Palo Alto. Comment
  JROH2884  Scutellaria tuberosa John H. Thomas 1961-4-28 9175 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  UC75032  Scutellaria tuberosa C. F. Baker 1902-4-4 447 San Mateo Crystal Springs lake Comment
  CAS-BOT-BC59057  Sedum spathulifolium A. D. E. Elmer 1903-6-1 4550 San Mateo Crystal Springs Lake Comment
  SBBG33418  Sedum spathulifolium A. D. E. Elmer -Jun-1903 4550 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC59058  Sedum spathulifolium W. R. Dudley 1909-4-27 s.n. San Mateo Pulpit Rock, San Mateo Canyon. Comment
  CAS-BOT-BC59061  Sedum spathulifolium G. B. Rossbach 1939-6-18 756 San Mateo Ledge near 755 on SE slope of North Peak, Montara Mts. 396 Comment
  CAS-BOT-BC59274  Sedum spathulifolium C. F. Baker 1902-5-27 3198 San Mateo Foothills near Stanford Cal Comment
  SEINET10808551  Senecio Harold W. Rickett 1928-7-10 Rickett s.n. San Mateo La Honda, CA. Comment
  JROH1217  Senecio aronicoides John H. Thomas 1958-5-10 7163 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC363388  Senecio aronicoides D. E. Breedlove 1963-5-24 4978 San Mateo In San Andreas Valley below San Andreas Lake Comment
  RSA0012700  Senecio aronicoides C. F. Baker 1903-4-6 1900 San Mateo San Bruno Hills, San Francisco. [San Mateo] Comment
  RSA0012763  Senecio aronicoides C. F. Baker 1903-4-6 1900 San Mateo San Bruno Hills, San Francisco. [San Mateo] Comment
  SEINET5571345  Senecio aronicoides H. S. Gentry 1931-1 103 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  JEPS27356  Senecio sylvaticus Rimo Bacigalupi with Jim Roof and L. R. Heckard 1961-4-24 7617 San Mateo shoulder of spur facing almost due e KQED radio tower and power station; Summit of San Bruno Mountain 350 Comment
  RSA152057  Senecio sylvaticus John H. Thomas 1961-5-7 9272 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  JEPS37615  Senecio vulgaris W. L. Jepson 1928-10-18 10254 San Mateo w of Colma Comment
  CAS-BOT-BC364630  Senecio vulgaris Ira L. Wiggins 1973-6-24 22030 San Mateo Bed of San Francisquito Creek, about 60 m above Pope Street bridge, along line between Santa Clara and San Mateo Counties Comment
  SEINET5571340  Senecio vulgaris H. S. Gentry 1931-1 96 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  POM216898  Sequoia sempervirens D. D. Keck 1932-2-14 1368 San Mateo La Honda Road, east slope of Coast Range above Searsville Lake 305 Comment
  UCR168464  Sequoia sempervirens David D. Keck 1932-2-14 1368 San Mateo Coast Range, La Honda Road, east slope of Coast Range above Searsville Lake 305 Comment
  POM193077  Sequoia sempervirens W. R. Dudley 1902-12-1 s.n. San Mateo Santa Cruz Peninsula: Trail from Iverson s to Bull Spring Comment
  CDA2436  Setaria parviflora E. L. Labadie 1958-7-8 833 -58 San Mateo Redwood City. 0 Comment
  SJSU10484  Setaria viridis S. H. Casey 1975-6-14 490 San Mateo by residence, SW Redwood City Comment
  JROH3828  Sherardia arvensis John H. Thomas 1956-4-7 5611 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3829  Sherardia arvensis John H. Thomas 1957-4-16 6661 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent slopes Comment
  UC575679  Sidalcea diploscypha Lewis S. Rose 1935-6-9 35211 San Mateo w Redwood City (Emerald Lake); Emerald, w of Redwood City Comment
  SEINET7097929  Sidalcea malviflora A. G. Vestal 1937-6-15 s.n. San Mateo Lat. 37 14' 13ao N, Long. 122 24' 55ao W (NAD27 converted to WGS84 decimal degrees). Pebble Beach west of Pescadero. UTM Zone 10, 551863 mE, 4121109 mN. Comment
  JEPS127779  Sidalcea malviflora subsp. laciniata Adam C. Schneider with C. Matt Guilliams 2013-3-9 32 San Mateo Comment
  JEPS67241  Sidalcea malviflora subsp. malviflora W. L. Jepson 1921-4-3 9109 San Mateo canyon near Colma (Colma Canyon); n. San Mateo Co., Colma Canyon Comment
  POM282902  Sidalcea malviflora subsp. malviflora Lyman Benson 1930-4-6 2044 San Mateo Moss Beach. West slope. 15 Comment
  UC1084384  Sidalcea malviflora subsp. malviflora G. Thomas Robbins 1937-4-11 90 San Mateo along road to Woodside (above San Mateo); , rd to Woodside Comment
  POM282904  Sidalcea malviflora subsp. malviflora Lyman Benson 1931-4-26 2760 San Mateo Behind Stanford U., Brookside Park, Santa Cruz mtn range. 244 Comment
  JROH1731  Silene gallica John H. Thomas 1967-5-10 12861 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM286433  Silene gallica Lyman Benson 1930-4-6 2040 San Mateo Moss Beach. West slope. 15 Comment
  UCR121568  Silene gallica George K. Helmkamp, E. A. Helmkamp 1999-6-28 4994 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  CAS-BOT-BC386848  Silene gallica Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC389196  Silene laciniata subsp. californica L. R. Abrams 1909-5-26 4237 San Mateo Santa Cruz Peninsula. Between Woodside and Crystal Springs Comment
  CDA3478  Silene pseudatocion A. Jillson 1961-3-9 San Mateo Pacifica property, Redwood City. 0 Comment
  JROH1231  Silybum marianum John H. Thomas 1967-5-31 12931 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC364857  Silybum marianum George Oberlander 1949-7-24 257 San Mateo San Francisco Watershed Reserve. On Sawyer Ridge Comment
  CAS-BOT-BC74990  Sinapis arvensis Fred Hemphill 1973-5-6 767 San Mateo San Carlos. North of Malabar Road and Melendy Drive. 207 Comment
  JROH4443  Sisyrinchium bellum John Hunter Thomas 1981-4-21 20464 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC75049  Sisyrinchium bellum C. F. Baker 1902-3-30 428 San Mateo Crystal Springs Lake Comment
  RSA120320  Sisyrinchium bellum S. S. Tillett, I. Sternback 1956-6-24 541 San Mateo Behind (n.) Portola Camp Store, just outside Portola State Park 396 Comment
  UC1032495  Sisyrinchium californicum H. S. Yates 1935-3-8 5218 San Mateo 2 mi sw of Pescadero 60 Comment
  UC1134664  Smilacina racemosa N. K. Carlson 1935-7-3 119 San Mateo 3 mi s Bellvale; Santa Cruz Quadrangle Comment
  UC1134665  Smilacina racemosa G. E. Sindel 1935-8-2 342 San Mateo Harington Creek Santa Cruz Quadrangle (head) Comment
  UC844176  Smilacina racemosa L. R. Abrams 1916-3-25 5585 San Mateo near Dam; Santa Cruz Mountain Peninsula, Searsville Ridge Comment
  UC1577337  Smilacina racemosa Cynthia DiGiovanni 1971-4-4 19 San Mateo Alpine Road Menlo Park (foothills) Comment
  RSA176857  Solanum douglasii John H. Thomas 1963-5-20 10110 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  SEINET12274723  Solanum douglasii M. T. Doutt 1931-1 s.n. San Mateo Ano Nuevo Pt Comment
  SEINET5571744  Solanum douglasii H. S. Gentry 1931-1 88 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  UC1332474  Solanum furcatum G. L. Stebbins Jr. and J. W. Duffield 1938-10-24 19 San Mateo Mussell Rock 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
  NY821354  Solanum nigrum P. H. Raven 1951-3-12 2747 San Mateo Summit ridge of the San Bruno Mountains Comment
  CAS-BOT-BC154185  Solanum umbelliferum F. Hemphill 1973-4-15 688 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC157630  Solanum umbelliferum Lewis S. Rose 1934-2-10 34024 San Mateo Woodside Comment
  CAS-BOT-BC58482  Solanum umbelliferum R. C. Rollins 1941-3-16 2944 San Mateo E slope of Kings Mountain about 6 miles W of Woodside, Santa Cruz Mts. Comment
  JROH4186  Solanum umbelliferum John H. Thomas 1958-2-15 6988 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC157549  Solanum umbelliferum P. H. Raven 1950-4-16 1797 San Mateo Summit ridge, San Bruno Mts. 243 Comment
  JROH5884  Solanum umbelliferum J. C. Gaither Jr. 1982-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail behind weather station Comment
  RSA120417  Solidago californica Roxana S. Ferris 1920-9-3 2051 San Mateo Near the upper Mud Lakes, Coal Mine Ridge; Santa Cruz Mountain Peninsula. Comment
  CAS-BOT-BC365536  Solidago elongata Lewis S. Rose 1931-9-19 s.n. San Mateo Kings Mt. Comment
  CAS-BOT-BC365746  Solidago spathulata Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo San Bruno Mountain. Colma Canyon near old quarry Comment
  UC1555381  Solidago spathulata J. A. DeBenedictis 1988-7-13 1543 San Mateo San Bruno Mountain Comment
  CAS-BOT-BC365186  Solidago velutina subsp. californica Peter Rubtzoff 1975-10-4 8415 San Mateo San Bruno Mountains. On ridge northwest of Fog Forest Comment
  CAS-BOT-BC365191  Solidago velutina subsp. californica R. Bacigalupi 1941-10-30 2730 San Mateo 1/2 mi. south of junction with Belmont Road, along Crystal Springs-Woodside Road Comment
  HSC24021  Solidago velutina subsp. californica Mary Katherine Wicksten 1971-8-20 207 San Mateo Huddart Park; area by King's Mtn. Rd., above Miwok Area Comment
  JROH1239  Soliva sessilis John H. Thomas 1956-4-7 5610 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1254  Soliva sessilis John Hunter Thomas 1992-5-5 25212 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC374496  Sonchus asper Le Roy Abrams 1901-3-16 1144 San Mateo Woodside - Menlo Park Comment
  CAS-BOT-BC374705  Sonchus oleraceus Philip Wheeler 1965-6-16 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  CAS-BOT-BC235287  Sorghum bicolor J. H. Thomas 1959-11-19 8513 San Mateo Near Bayshore and University Avenue. East Palo Alto Comment
  CAS-BOT-BC236581  Sorghum halepense John H. Thomas 1968-10-6 14846 San Mateo Vicinity of railroad tracks and Dumbarton Bridge causeway entrance, east of Palo Alto Comment
  UC1099797  Sparganium erectum subsp. stoloniferum Malcolm A. Nobs and S. Galen Smith 1949-8-25 1569 San Mateo s of Rockaway Beach 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-BC390009  Spergula arvensis John H. Thomas 1961-5-7 9247 San Mateo Colma. Field near intersection of El Camino Real and F Street 45 Comment
  RSA65493  Spergula arvensis Mabel Peirson 1926-2-24 6520 San Mateo Moss Beach. Comment
  UCD99177  Spergula arvensis J. D. Skoss 1948-7-25 51 San Mateo San Vicente Canyon near Montara. Comment
  CAS-BOT-BC344921  Spergularia macrotheca Peter Rubtzoff; Jacob Sigg 1990-11-12 10245 San Mateo Sharp Park, south of Laguna Salada. Comment
  SJSU15797  Spergularia macrotheca var. macrotheca Toni Corelli 2010-6-1 677 San Mateo Wavecrest, west of Highway 1 in Half Moon Bay 23 Comment
  CAS-BOT-BC390469  Spergularia macrotheca var. macrotheca David D. Keck 1933-5-11 2297 San Mateo Montara Light House and Radio Station Comment
  RSA0098733  Spergularia villosa Lyman Benson 1934-7-29 6112 San Mateo Moss Beach. Pcific Ocean watershed. 15 Comment
  CAS-BOT-BC534887  Spirodela polyrhiza Roxana S. Ferris 1920-10-1 2101 San Mateo Mud Lakes, Coalmine Ridge Comment
  CHSC60186  Stachys Jan M. Karaz 1979-5-22 35 San Mateo 500 ft w of Canada College Campus Drive, 1.5 mi w of Hwy 280. 5 Comment
  RSA131277  Stachys ajugoides L. R. Abrams 1915-6-7 5244 San Mateo Woodside to Crystal Springs Road. Comment
  JEPS34472  Stachys ajugoides var. rigida L. R. Heckard, and R. Bacigalupi 1963-7-2 1361 San Mateo trail to Montara Peak (nw slope) (above old county road); Montara Peak 304 Comment
  CHSC45762  Stachys bullata Steven Triano 1988-5-24 205 San Mateo Ca 100 ft sw of Hwy. 1, 750 ft s of Gazos Creek and 2.4 mi s of Pigeon Point Light Station. 6 Comment
  JROH2910  Stachys bullata John Hunter Thomas 1987-5-19 24294 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC306580  Stachys bullata A. D. E. Elmer June, 1903 4417 San Mateo San Mateo Comment
  UC32569  Stachys bullata W. C. Blasdale 1893-6-23 San Mateo Pilarcitos Comment
  UCD125820  Stachys bullata G. K. Helmkamp; E. A. Helmkamp 2001-6-2 6771 San Mateo Central CA coast: Purissima Crk Road, E of Half Moon Bay at Purissima Crk, 3.2 miles E of CA-1. 243 Comment
  POM284551  Stachys bullata Lyman Benson 1930-5-26 2136 San Mateo Stanford University. Lake Searsville. 152 Comment
  RSA116680  Stachys bullata Josephine Randall 1907-4-27 186 San Mateo Kings Mt. Road. Comment
  SEINET13948127 Image available Stachys rigida Lewis S. Rose 1950-1 50139 San Mateo Emerald Lake region, alt ca 800 ft. hills W of Redwood City 244 Comment
  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-BC5590  Stachys rigida var. quercetorum A. A. Heller 1907-5-28 8577 San Mateo Above Crystal Springs on the Half Moon Bay road 137 Comment
  UCD164106  Stachys rigida var. quercetorum Peter Rubtzoff; Elizabeth McClintock, Barbara Deutsch 1978-6-4 9202 San Mateo San Bruno Mountain. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  NY380638  Stachys viarum A. A. Heller 1907-5-28 8581 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  JROH1786  Stellaria media John Hunter Thomas 1982-3-23 20815 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5386  Stipa miliacea var. miliacea John Hunter Thomas 1985-5-21 23662 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bridge Comment
  JROH5331  Stipa pulchra Duncan M. Porter 1960-4-22 664 San Mateo Jasper Ridge Biological Preserve, Stanford University. Meadow near crest of N-facing slope above Webb Ranch. Comment
  POM176887  Streptanthus albidus R. Patterson 1895-4-20 s.n. San Mateo San Juan Bautista(?) Hills trail to San Jose Comment
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Jun 18 2018
  CAS-BOT-BC423015  Stylomecon heterophylla Walter Knight; Irja Knight 1965-3-27 1017 San Mateo San Bruno Mountain. Devil's Gulch. Comment
  JEPS85568  Symphoricarpos albus var. laevigatus Craig Dremann 1986-8-30 326 San Mateo near San Gregorio (on Stage road, 500 ft s of intersection of Seaside School road, next to road) Comment
  JROH1682  Symphoricarpos albus var. laevigatus John Hunter Thomas 1978-7-2 19248 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1683  Symphoricarpos albus var. laevigatus John Hunter Thomas 1980-5-1 19908 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1119937  Symphoricarpos albus var. laevigatus G. E. Sindel 1935-8-2 320 San Mateo Harrington Creek; Santa Cruz Quad. 274 Comment
  CAS-BOT-BC237065  Symphoricarpos mollis J. H. Thomas 1955-3-21 4694 A San Mateo New La Honda Road between Searsville and Skyline Blvd., 1.8 miles from Searsville, eastern slope of the Santa Cruz Mts. 274 Comment
  CAS-BOT-BC99061  Symphyotrichum chilense Walter Knight; Irja Knight; Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain - Lower part of Colma Canyon Comment
  CAS-BOT-BC99087  Symphyotrichum chilense John H. Thomas 1976-10-7 18395 San Mateo Along coast highway #1, 0.6 miles north of northern most road to Pigeon Pt. Lighthouse. About 4.2 miles almost due south 30 Comment
  CAS-BOT-BC99088  Symphyotrichum chilense Josephine D. Randall 1907-7-23 54 San Mateo Near Crystal Springs Lake - Santa Cruz Peninsula Comment
  HSC5051  Symphyotrichum chilense L. S. Rose 1966-8-15 66083 San Mateo Pillar Point 2 Comment
  UC1119618  Symphyotrichum chilense A. Wright 1928-9-11 San Mateo s of Chinese Cemetary; San Mateo Quad. 548 Comment
  CAS-BOT-BC99057  Symphyotrichum chilense David D. Keck 1931-9-27 1274 San Mateo Dumbarton Bridge, at roadsides just inland from tide-flats. Comment
  CAS-BOT-BC99058  Symphyotrichum chilense David D. Keck 1930-10-15 989 San Mateo South-west of Woodside 457 Comment
  SBBG40538  Tanacetum camphoratum B. Sherfey, A. L. Menzies 1963-9-14 San Mateo San Bruno Hills Comment
  CAS-BOT-BC353472  Taraxacum officinale Peter Rubtzoff 1977-4-14 8943 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction. East Fork Colma Creek canyon area at the NW corner of Fog Forest, San Bruno Mountains. Comment
  JROH1286  Taraxacum officinale John H. Thomas 1976-4-19 18084 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UCSB11442  Taraxia ovata Olson, Jim 1962-4-17 San Mateo 1 mile east of Halfmoon Bay; on road to San Mateo 15 Comment
  SD39526  Taraxia ovata Edith A. Purer 1933-4-18 3623 San Mateo Woodside Road. Comment
  UCSB11176  Taraxia ovata Connelly, Dianne 1962-4-21 San Mateo above main office of Westhorough homes development; 10 miles north of San Francisco on Highway 5 121 Comment
  CAS-BOT-BC447486  Tellima grandiflora J. P. Moore 1878-4-26 s.n. San Mateo Lagunitis Creek Comment
  JROH3910  Tellima grandiflora H. J. Dengler 1961-5-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Shaded creek bank N.E. of Searsville Rocks, across creek from violet site. Comment
  UCD39286  Tetragonia expansa B. Crampton 1962-6-11 6517 San Mateo Pacifica, Rockaway Beach, State Hwy. 1. Comment
  UC311127  Thalictrum fendleri var. polycarpum A. D. E. Elmer June, 1903 4425 San Mateo Butano Creek Comment
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Sep 6 2011
  CAS-BOT-BC399850  Thalictrum polycarpum Walter Knight; Irja Knight 1965-4-4 s.n. San Mateo San Bruno Mountain. Bitter Cherry Ravine about 80% of the way to summit Comment
  CAS-BOT-BC66657  Thysanocarpus curvipes John H. Thomas 1967-4-28 12719 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66658  Thysanocarpus curvipes John H. Thomas 1968-4-13 14290 A San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  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
  JROH1611  Thysanocarpus curvipes John Hunter Thomas 1987-4-4 24167 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Dam Comment
  JROH1619  Thysanocarpus curvipes John Hunter Thomas 1990-4-7 24801 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC66679  Thysanocarpus curvipes W. R. Dudley 1894-4-11 s.n. San Mateo Santa Cruz Peninsula. Slope near Menlo Park Reservoir. Comment
  RSA17959  Tiarella trifoliata var. unifoliata L. A. Waitzinger 1927-8-14 722 San Mateo Islam Camp near La Honda. Santa Cruz Mts. Comment
  JROH378  Torilis arvensis John Hunter Thomas 1989-6-17 24778 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH396  Torilis nodosa John Hunter Thomas 1986-5-15 24045 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC81494  Torreya californica W. R. D. 1895-3-26 s.n. San Mateo La Honda Comment
  SEINET10793120  Torreyochloa pallida var. pauciflora Adolph D. E. Elmer Elmer 4692 San Mateo Pilarcitos Creek Comment
  JROH185  Toxicodendron diversilobum John H. Thomas 1974-4-6 17091 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA15296  Toxicodendron diversilobum C. B. Wolf 1927-4-3 266 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  RSA176598  Toxicodendron diversilobum John H. Thomas 1964-4-4 10295 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto; towards Searsville end of ridge 152 Comment
  CAS-BOT-BC389711  Tragopogon porrifolius L. Sigal 1969-5-1 280 San Mateo Campus of San Mateo Comment
  RSA134113  Tragopogon porrifolius John H. Thomas 1958-10-28 7493 San Mateo Near intersection of Bayshore Hwy and Main St. Redwood City. Comment
  JROH4296  Tribulus terrestris Toni Corelli 2005-9-14 305 a San Mateo Jasper Ridge Biological Preserve, Stanford University; along road B just west of entrance to Dennis Martin marker site 168 Comment
  SD39136  Trientalis europaea var. latifolia Edith A. Purer 1933-5-16 3603 San Mateo Alpine Road Comment
  CHSC1405  Trientalis latifolia J. Baynes 1929-5-20 San Mateo Near Moss Beach. Comment
  JROH5897  Trientalis latifolia M. Ray 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail by San Francisquito Creek, near Redwoods Comment
  UCSC010881  Trifolium R. Morgan 1997-5-13 2569 San Mateo Vicinity of San Mateo/Santa Cruz County line Comment
  JEPS127793  Trifolium albopurpureum Adam C. Schneider with C. Matt Guilliams 2013-4-7 64 San Mateo Along Dirt Road running parallel to overhead power transmission lines. GPS coordinates approximate. Comment
  RSA178681  Trifolium albopurpureum John H. Thomas 1964-4-19 10319 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Near Searsville Lake. Comment
  UC518035  Trifolium albopurpureum var. albopurpureum Lewis S. Rose 1933-5-17 33172 San Mateo Redwood City Comment
  CAS-BOT-BC157980  Trifolium amplectens Peter Rubtzoff 1976-3-28 8450 A San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio junction; in East Fork Colma Creek canyon area Comment
  POM226873  Trifolium barbigerum L. R. Abrams 1914-4-2 5080 San Mateo Menlo Heights. Comment
  NY33700  Trifolium bicephalum A. D. E. Elmer 05 1903 4812 San Mateo San Pedro Comment
  UC203053  Trifolium bifidum var. bifidum A. D. E. Elmer April, 1903 4798 San Mateo Portola Comment
  JROH2250  Trifolium bifidum var. decipiens John H. Thomas 1958-5-10 7144 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI12706  Trifolium bifidum var. decipiens Lewis S. Rose 1966-5-2 66035 San Mateo Emerald Lake, W of Redwood City 91 Comment
  UC575709  Trifolium bifidum var. decipiens Lewis S. Rose 1935-5-1 35134 San Mateo Redwood City Comment
  RSA14963  Trifolium bifidum var. decipiens L. S. Rose 1935-5-1 35134 San Mateo Redwood City Comment
  RSA131348  Trifolium depauperatum var. amplectens John H. Thomas 1955-5-6 4990 San Mateo Jasper Ridge about 3.5 miles southwest of Stanford University. 152 Comment
  UC485415  Trifolium depauperatum var. amplectens R. L. Pendleton 1907-4-20 628 a San Mateo Colma 121 Comment
  POM88138  Trifolium dichotomum L. R. Abrams 1902-5-4 2420 San Mateo Woodside- Serpentine Hills Comment
  JROH2282  Trifolium fucatum Robert Robertson 1954-4-23 100 San Mateo Jasper Ridge Biological Preserve, Stanford University 170 Comment
  JROH2283  Trifolium fucatum John H. Thomas 1955-5-6 4987 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent grassy slopes Comment
  UC866776  Trifolium fucatum Alice Eastwood 1915-6-13 4720 San Mateo Granada Comment
  RSA40291  Trifolium fucatum var. fucatum L. S. Rose 1948-5-9 48109 San Mateo West of Burlingame. 122 Comment
  UCSC003369  Trifolium fucatum var. fucatum Randall Morgan 2001-5-9 3730 San Mateo on bluff at San Gregorio State Beach, San Mateo County Comment
  UCSC005240  Trifolium fucatum var. fucatum Randall Morgan 1995-6-6 2723 San Mateo Pescadero State Beach, Highway 1 opposite Pescadero Road Comment
  SJSU15217  Trifolium glomeratum Toni Corelli 2010-5-5 625 San Mateo Ano Nuevo State Park, Cascade Field 9 Comment
  JEPS127823  Trifolium gracilentum Adam C. Schneider with C. Matt Guilliams 2013-4-7 80 San Mateo Comment
  UCD111197  Trifolium hirtum John Thomas Howell 1966-5-8 41530 San Mateo At junction of Millbrae Ave. and Bayshore Freeway, Millbrae. Comment
  JROH2338  Trifolium microcephalum John H. Thomas 1956-4-7 5607 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  UC866875  Trifolium microcephalum Lewis S. Rose 1935-5-1 35139 San Mateo Belmont Comment
  CDA28004  Trifolium microdon D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  UCD78150  Trifolium tomentosum Robert E. Preston 2008-4-2 2602 San Mateo 1.1 mi SE of San Andreas Reservoir, at jct two dirt roads 107 Comment
  JROH2386  Trifolium variegatum John Hunter Thomas 1978-4-20 19080 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET4206967  Trifolium variegatum Lewis S. Rose 1953-4-5 53011 San Mateo Redwood City, CA, along Bayshore Highway.; 0 3 Comment
  POM20412  Trifolium variegatum var. melananthum A. D. E. Elmer 1903-05 4685 San Mateo Portola. Comment
  RSA131360  Trifolium variegatum var. melananthum John H. Thomas 1955-5-6 4999 San Mateo Jasper Ridge about 3.5 miles southwest of Stanford University. 152 Comment
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Feb 5 2019
  UC165501  Trifolium variegatum var. melananthum J. Burtt Davy 1895-1 1017 San Mateo Pilarcitos Comment
  RSA349594  Trifolium variegatum var. melananthum L. S. Rose 1937-5-2 37251 San Mateo Burlingame 91 Comment
  RSA119330  Trifolium variegatum var. variegatum S. S. Tillett, I. Sternbacback 1956-6-24 538 San Mateo Behind (n.) Portola Camp Store, just outside Portola State Park 396 Comment
  HSC100120  Trifolium willdenovii J. Wendell Howe 1930-4-11 San Mateo Menlo Park Comment
  POM278621  Trifolium willdenovii Lyman D. Benson 1935-5-5 6526 San Mateo Lake Searsville. Stanford University. Santa Cruz Mtn range. S.F. Bay watershed. 152 Comment
  UC74990  Trifolium willdenovii C. F. B. 1903-4-8 1925 San Mateo San Andreas Lake Comment
  CDA28299  Trifolium willdenovii T. C. Fuller 1967-6-13 15942 San Mateo Half Moon Bay Harbor, north edge of the town of Half Moon Bay. 0 Comment
  SEINET12157356  Trifolium willdenovii Unknown 1932-1 9014 San Mateo Los Francos Woods Comment
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Oct 31 2021
  CAS-BOT-BC451907  Triglochin maritima Le Roy Abrams 1901-3-1 1145 San Mateo Cooley's Landing Comment
  CAS-BOT-BC451908  Triglochin maritima Le Roy Abrams 1901-3-16 1145 San Mateo Cooley's Landing Comment
  CHSC25136  Trillium chloropetalum R. N. Bowman 1971-4-5 4 San Mateo Ca. 1.6 mi. E. of Hwy. 1 on Gazos Creek rd., ca. 5 yards down wooded embankment along S. side of rd. 18 Comment
  JROH4730  Trillium chloropetalum John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4723  Trillium chloropetalum John H. Thomas 1969-4-12 14892 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD27761  Trillium chloropetalum Carl B. Wolf 1927-2-27 228 San Mateo I(c) mile inland from Pescadero. 14 Comment
  CAS-BOT-BC521060  Trillium chloropetalum var. giganteum David D. Keck 1932-3-6 1394 San Mateo La Honda road above Searsville Lake, Santa Cruz Mountains Comment
  CAS-BOT-BC133433  Trillium ovatum A. D. E. Elmer 1903-4-1 4752 San Mateo Portola Comment
  RSA378207  Trillium ovatum A. C. Life 1924-2-22 s.n. San Mateo Kings Mountain, Redwood Park. Comment
  UC142146  Trillium ovatum Dr. E. L. Greene 1902-3-18 329 San Mateo West side King's Mountain, San Mateo County Comment
  UC765421  Trillium ovatum R. F. Hoover 1939-3-3 3895 San Mateo above Portola (on La Honda Rd.) Comment
  UCR55868  Trillium ovatum Ray Langham 1966-4-3 121 San Mateo [NW] of La Honda, King's Grove [apparently vicin. of Tunitas Creek Rd., Mitchell Creek drainage] 229 Comment
  POM170135  Trillium ovatum Stewart H. Burnham 1894-2-24 10517 San Mateo Summit Springs. Comment
  SD39139  Trillium rivale Edith A. Purer 1933-4-18 3621 San Mateo No further locality information given on label on specimen sheet. Comment
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Nov 11 2010
  JEPS10697  Triphysaria eriantha subsp. rosea W. L. Jepson 1921-4-3 9117 San Mateo near Colma (Colma Canyon); Colma Canyon Comment
  CAS-BOT-BC238553  Triphysaria floribunda Vincent Jones 1921-4-1 s.n. San Mateo San Bruno hills Comment
  CAS-BOT-BC238565  Triphysaria floribunda David D. Keck 1932-5-6 1490 San Mateo Four miles west of Burlingame, on the Skyline Blvd. Comment
  CAS-BOT-BC238578  Triphysaria floribunda Javier Penalosa 1963-3-30 2734 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF 289 Comment
  SBBG54528  Triphysaria floribunda F. W. Pennell, D. D. Keck 1940-5-15 25426 San Mateo 4 mi W of Burlingame 152 Comment
  JROH4138  Triphysaria pusilla John H. Thomas 1971-4-10 15753 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4139  Triphysaria pusilla John H. Thomas 1974-4-13 17154 San Mateo Jasper Ridge Biological Preserve, Stanford University; Westridge end of ridge Comment
  JEPS10445  Triphysaria versicolor subsp. versicolor Adele Lewis Grant 1917-5-6 934 San Mateo Pebble Beach 3 Comment
  SJSU16040  Triteleia hyacinthina Toni Corelli, John Rawlings 2016-4-29 1763 San Mateo Cascade Field, north and south of Cascade Cr. Trail, Ano Nuevo State Park 21 Comment
  JROH4742  Triteleia ixioides subsp. ixioides John Rawlings 2011-6-22 1070 San Mateo Jasper Ridge Biological Preserve, Stanford University. North side of ridge down slope from Escobar Gate. 130 Comment
  POM277006  Triteleia ixioides subsp. ixioides Lyman Benson 1930-5-3 2093 San Mateo Above Woodside, La Honda Grade; Mt. range: Santa Cruz. 244 Comment
  CAS-BOT-BC389750  Triteleia ixioides subsp. ixioides M. Danielson 1965-5-15 s.n. San Mateo Westward extension of Edgewood Road - Redwood City Comment
  JROH4743  Triteleia laxa John H. Thomas 1962-5-31 9892 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oak woodland near Westridge end of ridge. Comment
  RSA18305  Triteleia laxa Carl B. Wolf 1927-5-31 411 San Mateo North end of Searsville Lake. Comment
  UCR143315  Triteleia laxa David D. Keck 1932-5-6 1466 San Mateo Belmont 30 Comment
  CAS-BOT-BC526787  Triteleia laxa George Oberlander 1950-5-6 892 San Mateo Under Douglas Fir, Cahill Ridge Comment
  CAS-BOT-BC526788  Triteleia laxa Ned Cahill 1974-4-29 174 San Mateo Serpentine fields bordered by chaparral near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  CAS-BOT-BC67379  Tropidocarpum gracile Le Roy Abrams 1898-4-1 s.n. San Mateo Portola. Comment
  CAS-BOT-BC74055  Turritis glabra Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain at Flower Garden adjacent to April Brook. Comment
  JROH5538  Typha latifolia John Hunter Thomas 1982-11-6 21202 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta along edge of Searsville Lake Comment
  CDA20602  Ulex europaeus J. Beall 2005-10-27 PDR 1359199 San Mateo San Francisco Bay Area; 0.25 mi Nof Westline and Skyline, Daly City. 0 Comment
  JROH4222  Ulmus minor John Hunter Thomas 1987-4-30 24214 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4223  Ulmus minor John Hunter Thomas 1989-5-11 24737 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near bridge over two parts of lake Comment
  SJSU8201  Ulmus parvifolia M. E. Schauss 1978-10-10 San Mateo Sunset Publishing Co, Willow Rd, Menlo Park 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
  JROH138  Umbellularia californica John H. Thomas 1968-2-11 14143 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM177516  Umbellularia californica Harry A. Dutton 1900-2-18 s.n. San Mateo Woodside. Comment
  RSA623612  Umbellularia californica C. B. Wolf 1928-2-11 1471 San Mateo East base of Kings Mountain Road.. . Comment
  UC750643  Umbellularia californica Lewis S. Rose 1946-3-9 46017 San Mateo San Mateo Canyon 91 Comment
  CAS-BOT-BC382764  Uropappus lindleyi Lewis S. Rose 1933-4-30 33127 San Mateo Redwood City Comment
  UCR122986  Urtica dioica subsp. gracilis George K. Helmkamp, E. A. Helmkamp 2001-6-2 6780 San Mateo San Francisco Bay Region, Purisima Creek Road, east of Half Moon Bay at Purisima Creek, 3.2 miles east of CA Hwy 1 244 Comment
  CAS-BOT-BC403969  Urtica dioica subsp. gracilis L. R. Abrams 1927-6-13 s.n. San Mateo La Honda Comment
  JROH4235  Urtica dioica subsp. holosericea John H. Thomas 1961-6-14 9547 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near bridge across the two parts of Searsville Lake Comment
  POM204437  Urtica dioica subsp. holosericea E. C. Sutliffe 1933-7-12 s.n. San Mateo Between the Skyline Blvd and La Honda on the Alpine Creek Road. Comment
  SEINET12036188  Urtica urens Unknown 1932-1 9160 San Mateo San Madero Creek Comment
  CAS-BOT-BC199179  Vaccinium cespitosum Elizabeth McClintock; Arthur Menzies 1963-2-16 s.n. San Mateo Near radio station on San Bruno Mountain, Kamchatka Point Comment
  CAS-BOT-BC199350  Vaccinium ovatum W. R. Dudley 1898-4-24 s.n. San Mateo El Corte Madera Comment
  CAS-BOT-BC199362  Vaccinium ovatum George Oberlander 1949-4-17 67 San Mateo Cahill Ridge Comment
  CAS-BOT-BC199369  Vaccinium ovatum J. H. Thomas 1949-3-31 203 San Mateo King's [Kings] Mountain Road Comment
  JEPS58746  Vaccinium ovatum A. D. E. Elmer Apr 1903 4561 San Mateo Kings Mountain Comment
  RSA187267  Vaccinium ovatum W. R. Dudley 1898-3-5 s.n. San Mateo King's Mountain. Comment
  RSA471170  Vaccinium ovatum L. H. Jones 1909-3-3 s.n. San Mateo Summit of King's Mountain, Stanford University. 732 Comment
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Sep 22 2011
  UC634722  Vaccinium ovatum Herbert L. Mason 1927-4-23 3671 San Mateo La Honda Comment
  CAS-BOT-BC199463  Vaccinium parvifolium L. R. Abrams 1909-8-1 4247 San Mateo Between La Honda & Pescadero Comment
  JEPS100467  Vaccinium parvifolium Dean W. Taylor 1988-4-29 9586 San Mateo San Bruno Mountain, northern slope of mountain 0.3 miles N22d W of summit, 371 Comment
  JROH4257  Verbena lasiostachys var. lasiostachys John H. Thomas 1962-5-31 9895 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oak woodland near Westridge end of ridge Comment
  RSA18513  Verbena lasiostachys var. lasiostachys Carl B. Wolf 1927-7-14 607 San Mateo Summit of Kings Mountain Rd. Comment
  JROH4273  Verbena lasiostachys var. scabrida John H. Thomas 1968-5-22 14463 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of lake Comment
  UC615560  Verbena lasiostachys var. scabrida Beryl O. Schreiber 1932-5-29 307 San Mateo Crystal Springs Comment
  POM15417  Veronica americana Copeland 1903-6-16 s.n. San Mateo Montara Pt. [county not specified] Comment
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Jun 10 2012
  UC306601  Veronica peregrina subsp. xalapensis A. D. E. Elmer June, 1903 4268 San Mateo Crystal Springs Lake Comment
  CDA6415  Veronica persica Wm. Davis 1958-1-13 20 -58 San Mateo Half Moon Bay. 0 Comment
  JROH4154  Veronica persica John Hunter Thomas 1983-4-20 21535 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  SEINET12157683  Vicia americana M. T. Doutt 1931-1 s.n. San Mateo Ano Nuevo Point Comment
  POM127023  Vicia americana var. americana R. L. Pendleton 1907-4-20 608 San Mateo Lake Merced 30 Comment
  RSA100980  Vicia americana var. americana G. Oberlander 1949-4-30 122 San Mateo Cahill Ridge, San Francisco Watershed Reserve. Comment
  RSA397971  Vicia benghalensis E. A. Purer 1932-7-16 15925 San Mateo Near Pigeon Point Comment
  UC101723  Vicia gigantea C. F. Baker 1902-4-12 506 San Mateo San Gregorio Comment
  JROH2437  Vicia sativa subsp. nigra John Hunter Thomas 1981-4-30 20515 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD108942  Vicia sativa subsp. sativa Malcolm A. Nobs; S. Galen Smith 1949-8-25 1547 San Mateo Sharp Park. Comment
  POM257512  Vicia villosa Carl B. Wolf 1929-5-27 3737 San Mateo Los Trancos Creek back of Stanford University. Comment
  JROH2455  Vicia villosa subsp. varia John Rawlings 2012-5-15 1120 San Mateo Jasper Ridge Biological Preserve, Stanford University. South side of Road B. 89 Comment
  RSA15206  Vinca major C. B. Wolf 1926-10-19 s.n. San Mateo Near La Honda. Santa Cruz Mts. Comment
  JROH424  Vinca major John H. Thomas 1977-4-8 18517 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Portola Rd. and Sand Hill Rd. Comment
  CAS-BOT-BC264041  Viola adunca Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountain. Cable Ravine, on left ridge Comment
  CAS-BOT-BC264044  Viola adunca Elizabeth McClintock; Arthur Menzies 1963-2-16 s.n. San Mateo San Bruno Mountain. Below top of mountain in vicinity of radio station Comment
  UCD110660  Viola adunca subsp. adunca A. A. Beetle 1939-3-31 1777 San Mateo Daly City. Comment
  UC1121577  Viola glabella Beryl Schr