Search Results — 2000 specimen records retrieved (1338 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-BC383897  Abronia latifolia W. R. Dudley 1891-7-5 s.n. San Mateo Santa Cruz Mountain Peninsula. Pescadero Comment
  SEINET11941810  Abronia latifolia E. A. Purer 1933-1 5381 San Mateo Sand dunes, 2 mi S of Pigeon Point Comment
  SEINET945976  Abronia umbellata C. F. Baker 1902-1 1742 San Mateo Pillar Point. Comment
  RSA0025943  Abronia umbellata C. F. Baker 1902-10-1 1742 San Mateo Pillar Point. Comment
  JROH2957  Abutilon theophrasti Carol Zabel 2006-8-21 62 San Mateo Jasper Ridge Biological Preserve, Stanford University; resident ranger's yard Comment
  CAS-BOT-BC177044  Acacia dealbata Ned Cahill 1974-4-30 238 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH1982  Acacia melanoxylon Toni Corelli 2005-8-3 299 a San Mateo Jasper Ridge Biological Preserve, Stanford University. South of Road B, along San Francisquito Creek near Dennis Martin site 71 Comment
  OBI48988  Acaena pinnatifida Michener & Bioletti, Bioletti May 1892 s.n. San Mateo Cemeteries Comment
  POM139634  Acaena pinnatifida var. californica A. D. E. Elmer 1903-04 4823 San Mateo San Bruno Hills. Comment
  SD27820  Acaena pinnatifida var. californica Carl B. Wolf 1929-5-25 3732 San Mateo Pebble Beach, south of Pescadero Comment
  UC14110  Acaena pinnatifida var. californica E. L. Drew Apr. 1888 San Mateo San Pedro Ranch Comment
  CAS-BOT-BC451123  Acaena pinnatifida var. californica George Oberlander 1950-5-6 876 San Mateo Grassland about San Andreas Lake; San Francisco Watershed Reserve Comment
  CAS-BOT-BC451133  Acaena pinnatifida var. californica Charles Piper Smith 1908-4-26 1425 San Mateo Colma; Pacific Slope Comment
  POM294370  Acanthomintha obovata subsp. duttonii Dutton, Walker 1915-1 s.n. San Mateo Menlo Park Comment
  SJSU10875  Acer macrophyllum E. C. Garbett 1960-4-13 San Mateo Corte Madera Creek, Alpine Rd Comment
  UC138076  Acer negundo var. californicum C. F. Baker 1902-4 472 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC21551  Achillea millefolium Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain above Hillside Blvd., South San Francisco Comment
  CHSC39835  Achillea millefolium Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  JEPS28872  Achillea millefolium V. F. Hesse 1962-7-19 3165 San Mateo Pescadero Beach 4 Comment
  JROH443  Achillea millefolium John H. Thomas 1973-6-10 16823 San Mateo Jasper Ridge Biological Preserve, Stanford University 190 Comment
  UCD18525  Achillea millefolium June McCaskill 1954-5-8 300 San Mateo Moss Beach. Comment
  CAS-BOT-BC28769  Achillea millefolium Saichi Kawahara 1968-6-15 425 San Mateo Pescadero Beach, 150 yards south of mouth of Pescadero Creek, Highway 1. 4 Comment
  UCSC007713  Achillea millefolium Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH461  Achyrachaena mollis John H. Thomas 1970-4-28 15607 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2054  Acmispon americanus var. americanus John H. Thomas 1967-6-1 12954 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2057  Acmispon americanus var. americanus D. E. Breedlove 1971-5-31 19343 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH2062  Acmispon americanus var. americanus John Hunter Thomas 1983-5-23 22245 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack side and low-flow crossing Comment
  JROH2067  Acmispon glaber var. glaber W. R. Dudley 1893-7-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  JROH2068  Acmispon glaber var. glaber G. H. Mallory 1919-7-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15407  Acmispon glaber var. glaber Toni Corelli 2010-5-13 610 San Mateo Pedro Point Headlands, Pacifica CA; off of South Ridge Road Trail 195 Comment
  JROH2079  Acmispon strigosus John H. Thomas 1975-4-18 17787 a San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS128393  Acmispon wrangelianus Adam C. Schneider 2013-5-17 131 San Mateo Crystal Springs Reservoir. Comment
  JROH2082  Acmispon wrangelianus Daniel Cohen 1953-4-11 10 San Mateo Jasper Ridge Biological Preserve, Stanford University; on north shore of Searsville Lake Comment
  JROH2087  Acmispon wrangelianus John H. Thomas 1957-4-16 6663 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2090  Acmispon wrangelianus Duncan M. Porter 1960-5-5 688 San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of N-facing slope above Webb Ranch. Quadrat H-6 Comment
  JROH2088  Acmispon wrangelianus Duncan M. Porter 1960-4-22 660 A San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of N-facing slope above Webb Ranch. Quadrat H-4 Comment
  RSA18493  Actaea rubra subsp. arguta Carl B. Wolf 1927-7-14 627 San Mateo Summit of La Honda Grade Comment
  CAS-BOT-BC139958  Adenostoma fasciculatum Margaret A. Barry 1937-6-24 190 San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC139999  Adenostoma fasciculatum Fred Hemphill 1973-5-14 842 San Mateo San Carlos, area north of Malabar Rd. and Melendy Dr. 207 Comment
  SEINET191610  Adenostoma fasciculatum Lewis S. Rose 1941-6-12 41270 San Mateo Hills of Redwood City Emerald Lake. 122 Comment
  JROH3586  Adenostoma fasciculatum var. fasciculatum John H. Thomas 1974-8-3 17591 San Mateo Jasper Ridge Biological Preserve, Stanford University 137 Comment
  JROH3591  Adenostoma fasciculatum var. fasciculatum John Hunter Thomas 1987-5-26 24317 San Mateo Jasper Ridge Biological Preserve, Stanford University 160 Comment
  CAS-BOT-BC384616  Adiantum aleuticum J. Lovelle 1973-7-29 s.n. San Mateo Pescadero Creek Comment
  CAS-BOT-BC65669  Adiantum jordanii George Oberlander 1950-3-11 512 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC65671  Adiantum jordanii Margaret Barry 1937-5-15 139 San Mateo Coal Mine Ridge Comment
  JROH2706  Aesculus californica John H. Thomas 1969-5-28 15086 San Mateo Jasper Ridge Biological Preserve, Stanford University 134 Comment
  JROH2710  Aesculus californica John H. Thomas 1975-6-5 17946 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oakwoodland below Searsville Dam. 86 Comment
  SEINET1908063  Aesculus californica Carl B. Wolf 1934-1 6242 San Mateo Menlo Park, in vacant area at Cambridge Ave. & Cornell Rd., N.W. of San Francisco Creek 15 Comment
  UC615561  Aesculus californica Beryl O. Schreiber 1932-5-29 313 San Mateo near San Mateo Comment
  JROH487  Agoseris heterophylla Arthur Spiegler 1952-4-12 4 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  JROH491  Agoseris heterophylla John H. Thomas 1971-4-10 15758 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC15246  Agoseris hirsuta John Thomas Howell 1924-10-19 693 San Mateo Daly City Comment
  CAS-BOT-BC15232  Agoseris hirsuta W. R. Dudley 1893-5-1 s.n. San Mateo North of San Bruno Comment
  CAS-BOT-BC15233  Agoseris hirsuta W. R. Dudley 1895-12-14 s.n. San Mateo La Honda Road, at top of mountain Comment
  POM52819  Agoseris hirsuta A. D. E. Elmer 1903-04 s.n. San Mateo Cemeteries Comment
  CAS-BOT-BC376133  Agrostis Ricardo Villasenor, Jr. 1993-7-1 s.n. San Mateo San Francisco International Airport, west of Hwy. 101 Comment
  POM226850  Agrostis avenacea Henry E. Wreser 1932-6-4 s.n. San Mateo Black Mountain Road. Hillsborough Hills. Near Burlingane. Comment
  JEPS82921  Agrostis blasdalei James A. West 1983-8-14 189 San Mateo exposed coastal bluffs ca 2 km s of the Pigeon Point Lighthouse, +/- overlooking Columbia Beach Comment
Read comments
Dec 20 2015
  CDA1702  Agrostis capillaris J. T. Howell 1975-9-25 51509 San Mateo San Bruno Mountain 0 Comment
  CAS-BOT-BC127381  Agrostis exarata Michener; Bioletti 1893-6-1 132 San Mateo South Pilarcitos. Comment
  JROH4785  Agrostis exarata John Rawlings 2004-5-20 1015 San Mateo Jasper Ridge Biological Preserve, Stanford University. Side of Trail 2 about 250 yards west of the Zoology Cabin foundation. 82 Comment
  JROH4793  Agrostis hallii John Rawlings 2011-6-12 1075 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 4 downhill edge. 174 Comment
  JROH5781  Agrostis microphylla John Rawlings 2016-5-3 1777 San Mateo Jasper Ridge Biological Preserve, Stanford University; vernally wet area in Serpentine prairie (Area C) 170 Comment
  CDA926  Agrostis pallens D. G. Kelch, B. G. Baldwin, Sue Bainbridge, Abigail Moore 2005-6-21 5 .369 San Mateo S.F. Water District land, near Spring Valley. NE corner Pilarcitos Lake. 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
  RSA457455  Agrostis pallens Lyman Benson 1937-6-24 8390 a San Mateo Coal Mine Ridge. South of Stanford University. 396 Comment
Read comments
Aug 8 2011
  RSA290667  Agrostis stolonifera Lyman Benson 1937-7-20 8462 San Mateo Menlo Park, San Francisco Bay. Lawn at 736 Partridge Ave. 30 Comment
  JROH4157  Ailanthus altissima John H. Thomas 1980-11-18 20172 San Mateo Jasper Ridge Biological Preserve, Stanford University 98 Comment
  JROH4162  Ailanthus altissima John Hunter Thomas 1992-5-26 25353 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along SLAC corridor 82 Comment
  JROH4824  Aira caryophyllea John H. Thomas 1966-4-22 11570 San Mateo Jasper Ridge Biological Preserve, Stanford University 170 Comment
  JROH4828  Aira caryophyllea John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  RSA591524  Aira caryophyllea D. D. Keck 1932-3-6 1480 San Mateo Open hillside just west of Millbrae Highlands. 15 Comment
  CAS-BOT-BC138247  Aira caryophyllea var. caryophyllea Le Roy Abrams 1902-5-4 2405 San Mateo Woodside. Comment
  CAS-BOT-BC138250  Aira caryophyllea var. caryophyllea John H. Thomas 1961-5-23 9455 San Mateo Portola State Park, near junction of Peters and Pescadero Creeks. 152 Comment
  UCSC008506  Aira praecox Randall Morgan 2013-5-24 5526 San Mateo Bean Hollow State Beach Comment
  CAS-BOT-BC445395  Alisma plantago-aquatica Roxana S. Ferris 1920-9-3 2045 San Mateo Second Mud Lake, Coal Mine Ridge, Santa Cruz Mountains Comment
  JROH4568  Allium John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC398649  Allium dichlamydeum L. R. Abrams 1926-5-26 San Mateo a short distance s original station <type locality?> (w slope of San Bruno Hills); San Bruno Hills 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
  JROH4552  Allium falcifolium John Hunter Thomas 1981-4-23 20473 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD138520  Allium falcifolium R. E. Dengler 1960-4-12 28 San Mateo Jasper Ridge, Stanford Biological Reserve. 190 Comment
  JROH4554  Allium lacunosum var. lacunosum H. L. Mason 1921-5-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4567  Allium lacunosum var. lacunosum John Hunter Thomas 1978-4-20 19082 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC472889  Allium paniculatum David Atkins 1951-11-10 s.n. San Mateo Pescadero Comment
  CAS-BOT-BC132029  Allium peninsulare var. franciscanum L. R. A. 1902-5-4 2411 San Mateo Woodside Comment
  JROH4558  Allium peninsulare var. franciscanum John H. Thomas 1971-5-30 15963 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM169852  Allium peninsulare var. franciscanum A. D. E. Elmer 1903-06 s.n. San Mateo San Mateo 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
  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
  CAS-BOT-BC475495  Allium triquetrum D. E. Breedlove 1963-4-7 4352 San Mateo 3 miles north of Pescadero Comment
  SEINET12044628  Allium unifolium R. S. Ferris 1921-1 2183 San Mateo New Year's Pt Comment
  JROH1325  Alnus rhombifolia John H. Thomas 1965-1-29 10550 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below dam Comment
  POM281276  Alnus rhombifolia Lyman Benson 1929-2-18 946 San Mateo Bed of San Francisquito Creek at Stanford Convalescent Home. Comment
  SEINET12036414  Alnus rhombifolia Unknown 1932-10-17 7297 San Mateo near Searsville Lake Comment
  SJSU10489  Alopecurus pratensis S. H. Casey & C. A. Brock 1975-6-20 546 San Mateo by Old Woodside Store, Woodside 134 Comment
  CAS-BOT-BC137921  Alopecurus saccatus W. R. Dudley 1910-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula. New Grade road above Fritz Patricks. Comment
  UCR266159  Amaranthus deflexus A. C. Sanders 2015-12-27 41888 San Mateo San Francisco Peninsula, San Bruno, along Hwy 82 between 380 Fwy and San Bruno Ave. 15 Comment
  POM192784  Amaranthus deflexus W. R. Dudley 1895-9-21 s.n. San Mateo By R.R. back of Menlo Park Station Comment
  SJSU7593  Amaranthus deflexus C. A. Staicer 1976-9-26 San Mateo 91 Atherton Lane, Atherton Comment
  CAS-BOT-BC44931  Ambrosia chamissonis John H. Thomas 1963-5-20 10128 San Mateo Ano Nuevo Island, about 1/2 miles off shore and above 20 miles NW of Santa Cruz Comment
  RSA176781  Ambrosia chamissonis John H. Thomas 1963-7-19 10187 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Exposed rocks are Monterey shale. Comment
  SD39995  Ambrosia chamissonis Edith A. Purer 1933-7-27 5352 San Mateo Near strand at Pigeon Point on low sand dunes Comment
  CAS-BOT-BC55527  Ambrosia psilostachya W. R. Dudley 1902-9-21 s.n. San Mateo On causeway over Crystal Spring Reservoir Comment
  RSA385132  Ammophila arenaria Edith A. Purer 1933-7-27 18181 San Mateo 2 mi. S of Pigeon Pt. Comment
  SD41374  Ammophila arenaria Edith A. Purer 1932-7-18 4023 San Mateo Near Pigeon Point, sandy area. Comment
  SEINET11674266  Ammophila arenaria E. A. Purer 1933-1 5390 San Mateo 2 mi S of Pigeon Point Comment
  UCSC007716  Ammophila arenaria Becky Hendricks, Shayne Coppedge 2012-5-18 s.n. San Mateo Ano Nuevo State Park Comment
  JROH1344  Amsinckia menziesii John H. Thomas 1966-4-29 11589 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA249495  Anaphalis margaritacea John F. Emmel 1971-9-6 388 San Mateo NE facing slope 0.4 air mile SSW of Midway Village School on 1956 topo quad., above Guadalupe cyn. parkway, San Bruno Mts. 99 Comment
  SD30738  Anaphalis margaritacea Edith A. Purer 1933-8-4 5402 San Mateo Bayshore Highway, near Redwood City. Comment
  CAS-BOT-BC391917  Anemone grayi Le Roy Abrams 1902-3-16 2275 San Mateo King's Mountain Comment
  CAS-BOT-BC391919  Anemone grayi E. A. McGregor 1908-3-28 s.n. San Mateo Kings Mt. Comment
  POM151094  Anemone grayi C. F. Baker 1902-3-18 323 San Mateo King's Mountain. Comment
  SEINET12087662  Anemone grayi L. S. Rose 1931-1 s.n. San Mateo Kings Mountain Comment
  CAS-BOT-BC221457  Angelica hendersonii Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Quarry 3 Comment
  POM132666  Angelica tomentosa var. tomentosa A. D. E. Elmer 1903-07 4998 San Mateo Crystal Springs Lake, southern end Comment
  CAS-BOT-BC273182  Anisocarpus madioides James I. McMurphy 1909-5-25 s.n. San Mateo Above Pulpit Rock, San Mateo Canyon Comment
  UC917258  Anisocarpus madioides W. A. Harvey and J. M. Tucker 1948-6-29 1704 San Mateo just w junction with Highway 5 (Skyline Blvd.) (beside road to Portola State Park) Comment
  CAS-BOT-BC280649  Anthoxanthum occidentale A. D. E. Elmer 1902-3-1 4124 San Mateo King's Mt. Comment
  RSA492536  Anthriscus caucalis Lyman Benson 1935-5-5 6521 San Mateo Lake Searsville 152 Comment
  CAS-BOT-BC454478  Aphanes occidentalis John H. Thomas 1961-5-7 9269 San Mateo San Bruno Mountain in Northern part of county. 396 Comment
  JROH3605  Aphanes occidentalis John H. Thomas 1977-2-20 18465 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC261659  Aphanes occidentalis Peter Rubtzoff 1988-5-3 9917 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
  SEINET3161271  Aphyllon comosum W. A. Setchell 1908-8-30 sn San Mateo Farallone City Comment
  SD1680  Aquilegia formosa Ulysses S. Grant IV 1925-6-1 San Mateo near La Honda Comment
  UC1537326  Aquilegia formosa Gordon H. True Jr. 1936-4-5 388 San Mateo canyon betw san Gregorio adn Pescadero 152 Comment
  CAS-BOT-BC17320  Arabis blepharophylla Alice Eastwood 1913-2-22 2453 San Mateo San Bruno Hills. Comment
  CAS-BOT-BC17328  Arabis blepharophylla A. D. E. Elmer 1903-4-1 4936 San Mateo Santa Cruz Peninsula. San Bruno Hills. Comment
  SJSU8506  Arabis blepharophylla P. F. Canziani 1979-3-2 San Mateo canyon NW of intersection of Hillside Blvd & Chestnut Ave, San Bruno Mt Comment
  RSA0125507  Arabis blepharophylla Glenn A. Gorelick 1967-2-10 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  JROH1921  Arbutus menziesii J. H. Thomas 1977-4-29 18578 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM132206  Arbutus menziesii A. D. E. Elmer 1903-05 4515 San Mateo Searsville Lake Comment
  UCSB18630  Arbutus menziesii Schulte, John 1963-4-9 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mounatins 152 Comment
  CAS-BOT-BC24163  Arctostaphylos John H. Thomas 1967-2-9 12403 San Mateo Montara Mountain in Northern part of county. Between Pacifica and Montara. Comment
  SEINET11989294  Arctostaphylos S. W. Edwards 1982-1 s.n. San Mateo Foothill Park Comment
  CAS-BOT-BC24127  Arctostaphylos andersonii C. F. Baker 1902-1-15 271 San Mateo King's Mountain Comment
  CAS-BOT-BC24174  Arctostaphylos andersonii Roxania Strichfield 1914-2-28 33 San Mateo Portola Rd. Comment
  JEPS110501  Arctostaphylos andersonii Robert E. Preston 2004-6-9 2251 San Mateo Ca. 8 mi NW of Boulder Creek, in Pescadero Creek watershed. 160 Comment
  POM285158  Arctostaphylos columbiana Lyman Benson 1928-12-15 835 San Mateo La Honda. 457 Comment
  CAS-BOT-BC23516  Arctostaphylos crustacea John Thomas Howell 1924-2-23 259 San Mateo King Mt. Comment
  LA26778  Arctostaphylos crustacea Lewis S. Rose; 1942-3-30 42007 San Mateo Kings Mountain 600.0 Comment
  OBI14756  Arctostaphylos crustacea Lewis S. Rose 1961-2-16 61002 San Mateo Hills W of Belmont 183 Comment
  CAS-BOT-BC25169  Arctostaphylos crustacea subsp. crinita Roman Gankin 1966-5-17 739 San Mateo ca. 0.4 mile NE of Peak Mountain of Montara Mountain Range 487 Comment
  SBBG83928  Arctostaphylos crustacea subsp. crustacea R. Gankin 1959-2-22 322 San Mateo 2.8 mi from jct with Hwy 5 on King's Mtn Rd Comment
  RSA681641  Arctostaphylos edmundsii Annuschka Deb 1989-1-27 17 -a San Mateo Woodside. Comment
Read comments
Dec 6 2014
  CAS-BOT-BC24486  Arctostaphylos imbricata Elizabeth McClintock; Arthur L. Menzies 1963-2-16 s.n. San Mateo Knoll nw. of first television tower, San Bruno Mt. Comment
  CAS-BOT-BC24497  Arctostaphylos imbricata Peter H. Raven 1950-2-25 1383 San Mateo W. end of ridge behind NBC station, San Bruno Mtns. 457 Comment
  RSA70707  Arctostaphylos imbricata L. S. Rose 1951-3-13 51001 San Mateo San Bruno Hills. 304 Comment
  CAS-BOT-BC40166  Arctostaphylos montaraensis John H. Thomas 1974-5-9 17329 San Mateo San Pedro Valley. Northern part of county, inland from Pacifica. 152 Comment
  JEPS91232  Arctostaphylos montaraensis Dean W. Taylor 1992-3-19 12333 San Mateo in saddle between San Pedro Mountain and North Peak Montara Mountain; ; Montara Mountain, in saddle between San Pedro Mountain and North Peak, reached via old paved road from San Pedro Valley, along ridge at BM 924 274 Comment
  RSA167727  Arctostaphylos montaraensis R. F. Thorne, Percy C. Everett 1963-6-9 32224 San Mateo On top of San Bruno Mountain on Kamchatka Point near the TV tower 335 Comment
Read comments
Mar 14 2016
  SBBG83970  Arctostaphylos montaraensis R. Gankin 1966-5-17 740 b San Mateo Montara Mtn Comment
  UCD144586  Arctostaphylos montaraensis 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
  UCSC010735  Arctostaphylos montaraensis Rick Flores, Monica Schuster 2006-1 RF 152 San Mateo San Bruno and Mantara Mountains Comment
  CAS-BOT-BC38525  Arctostaphylos montaraensis Walter Knight; Irja Knight; James B. Roof; Gregory Whipple; Al Senenes 1969-9-22 2790 San Mateo 1 mi. w. of Scarper peak jct. enroute Montara Mt. on San Francisco Water Dept. property. 304 Comment
  SEINET11987172  Arctostaphylos montaraensis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4087 San Mateo Strybing Arboretum, San Francisco, orig. from San Bruno Mt. in 1963 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
  JEPS27358  Arctostaphylos pacifica Rimo Bacigalupi with Jim Roof and L. Heckard 1961-4-24 7618 San Mateo lateral ridge below and se end of ridge-top road just east of KRON TV tower and station (Guadalupe Valley side); San Bruno Mountain 304 Comment
Read comments
Aug 29 2014
  CAS-BOT-BC44749  Arctostaphylos regismontana W. R. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs Reservoir Comment
  JEPS78657  Arctostaphylos regismontana Edward Lee 1936-1-26 1736 San Mateo junction King's Mt. Rd. and Skyline Blvd (summit of ridge); Cahill Ridge 609 Comment
  POM132205  Arctostaphylos regismontana A. D. E. Elmer 1903-03 4537 San Mateo Kings Mountain. Comment
  UC1120831  Arctostaphylos regismontana A. E. Wieslander and B. O. Schreiber 1940-3-5 4 San Mateo road from Woodside to King's Mt.; Santa Cruz Quadrangle 304 Comment
  UCD53804  Arctostaphylos regismontana Roman Gankin 1966-5-17 740 A San Mateo Montara Mountain. Comment
  SEINET11988209  Arctostaphylos regismontana W. Knight, Raiche, R. 1982-1 4414 San Mateo Montara Mt 305 Comment
  CAS-BOT-BC44671  Arctostaphylos sensitiva W. R. Dudley 1899-1-2 s.n. San Mateo On dry hills between Butano Cr. and Little Butano Cr. - Santa Cruz Mountain Peninsula Comment
  UC1121491  Arctostaphylos tomentosa subsp. crinita G. E. Sindel 1935-7-31 319 San Mateo 1/2 mi n Pomponio Creek (near Plot #292); Santa Cruz Quadrangle Comment
  UCD51722  Arctostaphylos tomentosa subsp. crinita Roman Gankin 1966-5-17 739 San Mateo ca. 0.4 mile northeast of Peak Mountain of Montara Mountain range, San Mateo County, California. 487 Comment
  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
  SD38436  Arctostaphylos tomentosa subsp. crustacea Edith A. Purer 1933-5-23 3607 San Mateo Skylline Comment
  CAS-BOT-BC46830  Arctostaphylos uva-ursi Peter H. Raven 1951-2-18 2732 San Mateo Summit ridge of San Bruno Mts. Comment
  CAS-BOT-BC46838  Arctostaphylos uva-ursi Arthur Menzies 1962-2-25 s.n. San Mateo San Bruno Mt. Comment
  JEPS108605  Arctostaphylos uva-ursi Roger Raiche 1984-7-18 10153 San Mateo San Bruno Mountain, Kamchatka Point Comment
  UCD52147  Arctostaphylos uva-ursi Walter and Irja Knight; Elizabeth McClintock 1982-3-27 4495 San Mateo From Kamchatka Point, San Bruno Mountain, San Mateo County. 320 Comment
  SEINET11987488  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4204 San Mateo Strybing Arboretum, Golden Gate Park, San Francisco, orig. from San Bruno Mt Comment
  UCR240613  Armeria maritima T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3523 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-BC47702  Armeria maritima subsp. californica Adele Lewis Grant 1917-5-6 940 San Mateo Pebble Beach near Pescadero Comment
  CAS-BOT-BC47703  Armeria maritima subsp. californica Lous F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  CAS-BOT-BC47693  Armeria maritima subsp. californica Elizabeth McClintock; Paul Reedberg 1988-4-26 s.n. San Mateo at southern tip of ridge dividing Sage and Poison Oak Ravines 137 Comment
  CAS-BOT-BC93935  Artemisia douglasiana Gordon H. True 1937-7-23 803 San Mateo Along Salada Beach - Skyline Blvd. Road Comment
  HSC4721  Artemisia douglasiana L. S. Rose 1969-8-8 69090 San Mateo Skyline Blvd. and Half Moon Bay Rd; Cahill Ridge 244 Comment
  SEINET11853520  Artemisia pycnocephala E. A. Purer 1933-1 5387 San Mateo 2 mi S of Pigeon Point Comment
  UC1100217  Arundo donax Malcolm A. Nobs, S. Galen Smith 1949-8-25 1574 San Mateo s of Rockaway Beach Comment
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Jun 5 2008
  UC141855  Asarum caudatum Dr. E. B. Copeland 1903-5-9 3250 San Mateo Mountains beyond Pescadero Creek 304 Comment
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Oct 16 2021
  CAS-BOT-BC400512  Asarum caudatum W. R. Dudley 1898-4-24 s.n. San Mateo Santa Cruz Mountain Peninsula. Near El Corte de Madera Creek Comment
  SJSU10590  Asarum caudatum W. F. Larson 1973-4-16 San Mateo 5 mi E of La Honda 457 Comment
  POM268915  Asclepias cordifolia Lyman Benson 1930-5-3 s.n. San Mateo Above Woodside, La Honda Grade 244 Comment
  JROH429  Asclepias fascicularis John H. Thomas 1973-6-10 16826 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176418  Asclepias fascicularis John H. Thomas 1964-7-9 10444 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  SEINET10580520  Asclepias fascicularis Lewis S. Rose 1965-8-27 Rose 65092 San Mateo Emerald Lake, West of Redwood City, dry slopes. 122 Comment
  RSA249496  Aster chilensis John F. Emmel 1971-9-6 386 San Mateo Ravine 0.3 air miles southeast of 1314' summit, NE slope of San Bruno Mts. 320 Comment
  CAS-BOT-BC186758  Astragalus gambelianus Lois E. James 1946-4-16 1740 San Mateo Back of Redwood City, High Road off Woodside Road Comment
  CAS-BOT-BC186763  Astragalus gambelianus Ned Cahill 1974-4-18 114 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH1987  Astragalus gambelianus Duncan M. Porter 1960-5-5 675 San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of N-facing slope above Webb Ranch. Quadrat H-5 Comment
  CAS-BOT-BC186751  Astragalus gambelianus W. R. Dudley 1894-4-21 s.n. San Mateo Below Crystal Springs Dam Comment
  JROH1988  Astragalus gambelianus John H. Thomas 1961-4-4 9044 E San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of ridge Comment
  SD48960  Astragalus gambelianus Louis E. James 1947-4-11 1758 San Mateo Hills back of Redwood City. Comment
  UCD104824  Astragalus gambelianus Michael A. Vincent 1998-4-9 8203 San Mateo East side of Canada Road, ca. 200 yards southeast of its junction with Edgewood Road, just southwest of I-280, at Filoli Center. Comment
  POM16234  Astragalus nuttallii C. F. Baker 1902-10-1 1736 San Mateo Pillar Point. Comment
  CAS-BOT-BC186569  Astragalus nuttallii var. virgatus C. F. B. 1903-6-30 3358 San Mateo Pillar Point Comment
  CAS-BOT-BC194426  Astragalus nuttallii var. virgatus Delzie Demaree 1933-6-12 10376 San Mateo Baden Station, South San Francisco Comment
  SEINET5326017  Astragalus nuttallii var. virgatus A. A. Heller 1906-6-8 8385 San Mateo Near Ocean View, San Francisco Comment
  SFV1786  Astragalus nuttallii var. virgatus W. R. Russell 1966-8-17 s. n. San Mateo On side of hill at north end of Princeton Beach, about 2 miles south of Moss Beach. Comment
  CAS-BOT-BC193091  Astragalus pycnostachyus var. pycnostachyus Alice Eastwood; John Thomas Howell 1938-6-26 6064 San Mateo Arroyo de los Frijoles Comment
  CAS-BOT-BC193094  Astragalus pycnostachyus var. pycnostachyus J. H. Thomas 1958-8-1 7372 San Mateo Just north of mouth of San Gregorio Creek 30 Comment
  CDA26740  Astragalus pycnostachyus var. pycnostachyus T. C. Fuller 1967-8-23 16295 San Mateo West of coast highway (Highway 1), 1 mile northwest of Pescadero. 0 Comment
  SJSU15403  Astragalus pycnostachyus var. pycnostachyus Toni Corelli 2011-8-31 711 a San Mateo Pescadero State Beach and Marsh Natural Preserve, Butano Trail, between Butano Creek and Pescadero Creek Road 4 Comment
  UC13465  Astragalus pycnostachyus var. pycnostachyus J. W. Congdon 1897-8-11 San Mateo San Gregorio <?> Comment
  JEPS118232  Atriplex prostrata Dean W. Taylor with Alison Colwell 2005-9-26 19492 San Mateo 1 mile south along the coast from Franklin Point, Ano Nuevo State Reserve 0 Comment
  SEINET5727745 Image available Atriplex semibaccata Delzie Demaree 1932-1 10529 San Mateo Belmont; Belmont Comment
  RSA254228  Avena barbata Robert A. Norris 1975-3-21 2289 San Mateo Hilly grassland near Crocker Ave., San Bruno Mts. Comment
  CAS-BOT-BC146214  Avena brevis John Thomas Howell 1954-6-16 30003 San Mateo Belmont. Raslton Avenue at 6th. Comment
  CAS-BOT-BC145960  Avena fatua Elizabeth McClintock; Paul Reeberg 1989-3-19 s.n. San Mateo San Bruno Mountains. Shearwater. 91 Comment
  HSC9008  Avena fatua C. B. Wolf 1927-6-4 San Mateo South of San Gregorio Comment
  JROH4845  Avena fatua W. Lennihan 1990-4-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Across parking lot from picnic tables. Comment
  CAS-BOT-BC389748  Avena fatua M. Danielson 1966-4-23 s.n. San Mateo Hillside east of Canada Road Comment
  CAS-BOT-BC145734  Avena sativa Ned Cahill 1974-5-30 315 San Mateo About 3 miles westward from Redwood City. Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  CAS-BOT-BC68375  Azolla filiculoides George Oberlander 1951-3-30 1174 San Mateo San Francisco Watershed Reserve, San Mateo Creek Comment
  CAS-BOT-BC99507  Baccharis pilularis Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo Radio Road, San Bruno Mountains Comment
  CAS-BOT-BC99514  Baccharis pilularis John H. Thomas 1969-10-19 15483 San Mateo near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC99520  Baccharis pilularis George Oberlander 1949-8-20 361 San Mateo Sweeney Ridge Comment
  CAS-BOT-BC99528  Baccharis pilularis P. C. Everett 1934-8-19 6068 San Mateo Pescadero 198 Comment
  CAS-BOT-BC16618  Barbarea orthoceras Javier Penalosa 1963-3-9 2697 San Mateo San Bruno Mountains. Ravine 0.5 mile east of 1314 foot summit. 304 Comment
  CAS-BOT-BC16636  Barbarea orthoceras Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Sierra Point. Comment
  CAS-BOT-BC166953  Barbarea orthoceras Peter Rubtzoff 1975-5-21 7961 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH1445  Barbarea orthoceras John Hunter Thomas 1980-5-6 19933 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1451  Barbarea orthoceras John Hunter Thomas 1987-4-7 24175 San Mateo Jasper Ridge Biological Preserve, Stanford University; near new bridge over San Francisquito Creek Comment
  RSA788847  Barbarea orthoceras Peter Rubtzoff 1975-5-21 7962 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction Comment
  JROH3923  Bellardia trixago John Hunter Thomas 1985-5-2 23582 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU783  Bellardia trixago M. Bogner 1943-4-24 San Mateo near Menlo Park Comment
  UC1543196  Bellis perennis Donald G. Nelson 1940-7-7 696 San Mateo on road from Half Moon Bay to San Mateo Pilarcitos Creek 76 Comment
  CAS-BOT-BC75876  Berberis pinnata John H. Thomas 1958-2-15 6990 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 182 Comment
  CAS-BOT-BC75880  Berberis pinnata George Oberlander 1949-4-17 70 San Mateo San Francisco Watershed Reserve. Near Pilarcitos Lake. Comment
  CAS-BOT-BC75865  Berberis pinnata Walter Knight; Irja Knight 1964-3-15 569 San Mateo San Bruno Mountains. On ridge near Nike Base. Comment
  CAS-BOT-BC95347  Bowlesia incana C. F. Baker 1902-4-12 510 San Mateo La Honda Comment
  UC140513  Bowlesia incana C. F. Baker 1902-4-12 510 San Mateo Pacific Coast, La Honda La Honda; Pacific Coast, La Honda Comment
  CAS-BOT-BC95343  Bowlesia incana Walter Knight; Irja Knight 1965-3-28 1107 San Mateo Trillium Gulch, San Bruno Mountain Comment
  CAS-BOT-BC420227  Boykinia occidentalis W. R. Dudley 1895-6-6 s.n. San Mateo Banks of Pescadero Creek above Iverson's Comment
  UCD170111  Brachypodium sylvaticum R. Breckenridge; K. Filippini 2010-11-22 s.n. San Mateo Found across a number of properties in Woodside. Comment
  SEINET12004611  Brassica juncea E. H. Graham 1931-1 s.n. San Mateo Ano Nuevo Pt., S of San Francisco Comment
  JEPS26851  Brassica nigra Rimo Bacigalupi with J. H. Thomas and L. R. Heckard 1961-5-23 7714 San Mateo along Alpine Road near site of abandoned Alpine School Alpine School; Alpine Road 487 Comment
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Mar 12 2009
  RSA15631  Brassica oleracea C. B. Wolf 1927-6-15 1468 San Mateo Along Skyline Drive, 8 mi. S of San Francisco. 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
  CAS-BOT-BC145335  Briza minor Paul Arnaud 1941-4-17 s.n. San Mateo Redwood City, Jefferson Avenue. Comment
  SBBG459  Briza minor A. A. Beetle 1941-4-20 1739 San Mateo near San Carlos Comment
  UCD57401  Briza minor Beecher Crampton 1962-6-11 6501 San Mateo Sharp Park. Suburb of Pacifica. Mori's Point Road, just west of State Hwy. 1. Comment
  UCR121574  Briza minor George K. Helmkamp, E. A. Helmkamp 1999-6-28 5006 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  SEINET10514402  Briza minor Adolph D. E. Elmer Elmer 4912 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC482181  Brodiaea appendiculata J. C. Chamberlain 1922-1-1 s.n. San Mateo Fields near San Francisquito Creek back of Stanford University Comment
  SEINET12059400  Brodiaea californica subsp. leptandra M. T. Doutt 1931-5-4 411 San Mateo Skyline Blvd., W of Hillbrae Comment
  JROH4582  Brodiaea elegans subsp. elegans John H. Thomas 1976-5-26 18157 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC484344  Brodiaea elegans subsp. elegans Cherie Wetzel 1969-6-20 867 San Mateo Canada College, Redrood City, just off of Farm Hill Blvd. Comment
  JROH4587  Brodiaea terrestris subsp. terrestris John H. Thomas 1955-5-6 4979 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent grassy slopes Comment
  JROH4588  Brodiaea terrestris subsp. terrestris John H. Thomas 1956-4-7 5624 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent slopes Comment
  CAS-BOT-BC483169  Brodiaea terrestris subsp. terrestris John H. Thomas 1967-5-2 12818 San Mateo Along Skyline Blvd., 0.4 miles S of Black Mountain intersection, Hillsborough Comment
  CAS-BOT-BC483170  Brodiaea terrestris subsp. terrestris Ned Cahill 1974-4-18 122 San Mateo Near the intersectoin of Canada and Edgewood Roads about 3 miles westward from Redwood City Comment
  CAS-BOT-BC483185  Brodiaea terrestris subsp. terrestris Philip C. Wheeler 1965-5-25 s.n. San Mateo Brisbane Ridge, south of power lines, San Bruno Mountain Comment
  CAS-BOT-BC144137  Bromus John H. Thomas 1965-4-29 10619 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CDA7725  Bromus carinatus D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  POM234978  Bromus carinatus I. L. Wiggins 1928-4-22 2946 San Mateo Moss Beach Comment
  POM286978  Bromus carinatus Lyman Benson 1930-4-17 2079 a San Mateo Stanford University. Corte Madera Creek. 122 Comment
  UCD58137  Bromus carinatus Lewis S. Rose 1963-4-27 63003 San Mateo Skyline Blvd. West of San Mateo. 91 Comment
  CAS-BOT-BC149021  Bromus carinatus var. carinatus Ned Cahill 1974-4-29 184 San Mateo Near the intersection of Canada and Edgewood Roads, About 3 miles westward from Redwood City. Comment
  CAS-BOT-BC149024  Bromus carinatus var. carinatus Dean Wm. Taylor 1988-3-30 9492 San Mateo Santa Cruz Mountains. San Bruno Mountains, northern slope of southeast ridge of the mountain, near the ridgecrest. 237 Comment
  JROH4896  Bromus carinatus var. carinatus John H. Thomas 1984-4-2 23273 3 D San Mateo Jasper Ridge Biological Preserve, Stanford University. Low-flow crossing. Comment
  CAS-BOT-BC148767  Bromus carinatus var. marginatus W. R. Dudley 1901-5-11 s.n. San Mateo Santa Cruz Mountain Peninsula. Between Colma and Lake Merced. Comment
  CAS-BOT-BC148769  Bromus carinatus var. marginatus Elizabeth McClintock; Paul Reeberg 1989-5-23 s.n. San Mateo San Bruno Mountains. In valley west of Guadlupe Hills. 76 Comment
  CAS-BOT-BC156177  Bromus catharticus John Thomas Howell 1954-7-8 30010 San Mateo Skyline Boulevard above San Bruno. 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
  CAS-BOT-BC210145  Bromus diandrus Peter Rubtzoff 1977-6-21 9056 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon area. Comment
  JROH4909  Bromus diandrus John H. Thomas 1967-4-20 12704 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5628  Bromus diandrus John Rawlings 2013-4-9 1225 San Mateo Jasper Ridge Biological Preserve, Stanford University. Where the brick path ends at the visitor parking lot of the Sun Field Station. 120 Comment
  CAS-BOT-BC155136  Bromus hordeaceus Ned Cahill 1974-4-30 222 San Mateo Near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City. Comment
  CAS-BOT-BC155162  Bromus hordeaceus Duncan M. Porter 1960-4-29 667 San Mateo Above Webb Ranch, Jasper Ridge Biological Preserve. Quadrant H-4. Comment
  JROH4913  Bromus hordeaceus John H. Thomas 1957-4-16 6654 A San Mateo Jasper Ridge Biological Preserve, Stanford University 182 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
  SEINET10520261  Bromus laevipes A. Arthur Heller 1907-5-23 Heller 8566 San Mateo Back of San Mateo on the Half Moon Bay road. Comment
  CAS-BOT-BC162310  Bromus madritensis John H. Thomas 1961-5-14 9384 A San Mateo Just north of dam on San Mateo Creek. 121 Comment
  JROH4941  Bromus madritensis subsp. madritensis John H. Thomas 1966-4-24 11584 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA523926  Bromus maritimus G. H. True 1937-4-3 621 San Mateo Near coast north of Salada Beach. 15 Comment
  SJSU16032  Bromus maritimus John Rawlings, Toni Corelli 2016-4-29 1774 San Mateo Cascade Field along Atkinson Bluff Trail, north of Cascade Cr. Trail, Ano Nuevo State Park 11 Comment
  UCSC007724  Bromus maritimus Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CHSC22764  Cakile edentula Robert A. Schlising; Glenn Keator 1962-2-3 2048 San Mateo Coast Ranges. Along area at Gazos Creek and Highway 1. Comment
  UC765080  Cakile maritima R. F. Hoover 1941-2-12 4753 San Mateo Half Moon Bay Comment
  UC964761  Cakile maritima Herbert L. Mason 1944-3-17 San Mateo Moss Beach Comment
  RSA26885  Cakile maritima R. C. Rollins 1941-7-19 2962 San Mateo Half Moon Bay. Comment
  CAS-BOT-BC36946  Cakile maritima var. maritima Walter Knight; Irja Knight; Elizabeth McClintock 1964-9-11 s.n. San Mateo San Bruno Mountains. Point San Bruno. Comment
  CAS-BOT-BC27843  Calais kelloggii Albert Kellogg s.n. San Mateo San Bruno Mts. Comment
  CAS-BOT-BC185305  Calamagrostis koelerioides N. K. Carlson 1935-6-14 54 San Mateo 0.5 mile west of Hollow Tree Camp, north of Big Basin. 640 Comment
  CAS-BOT-BC185143  Calamagrostis nutkaensis L. R. Abrams 1927-6-4 s.n. San Mateo Pescadero. Comment
  CAS-BOT-BC185032  Calamagrostis rubescens W. R. Dudley 1906-6-12 s.n. San Mateo Santa Cruz Mountain Penisula. By road to Kings Mountain above the Squealer Gulch bridge. Comment
  JEPS121454  Calandrinia ciliata Adam C. Schneider with C. Matt Guilliams 2013-2-2 190 San Mateo Crystal Springs Reservoir, between power transmission lines and Interstate 280. Comment
  CAS-BOT-BC273256  Calendula officinalis Elizabeth McClintock; Paul Reeberg 1988-3-15 s.n. San Mateo San Bruno Mountains. Entrance to Olivet Ravine Comment
  UC306621  Callitriche verna A. D. E. Elmer Jun 1903 4279 San Mateo Lake San Andreas Comment
  CAS-BOT-BC492214  Calochortus albus Fred Hemphill 1973-5-6 757 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH4613  Calochortus albus John Hunter Thomas 1991-4-25 25004 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18306  Calochortus albus Carl B. Wolf 1927-5-31 410 San Mateo Searsville Lake Comment
  SD655  Calochortus albus Ulysses S. Grant IV Jun 1925 San Mateo Near La Honda. Comment
  CAS-BOT-BC492205  Calochortus albus Le Roy Abrams 1901-5-1 1571 San Mateo Woodside 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
  JROH5745  Calochortus albus J. C. Gaither 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Above San Francisquito Creek, near redwood grove. Comment
  JROH4639  Calochortus luteus John Hunter Thomas 1982-6-7 21024 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4641  Calochortus luteus John Hunter Thomas 1989-5-30 24753 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near dam Comment
  CAS-BOT-BC491982  Calochortus luteus W. R. Dudley 1894-5-18 343 San Mateo From Woodside to Crystal Spr. Lake. Comment
  CAS-BOT-BC132539  Calochortus umbellatus M N. Paulson 1915-4-10 s.n. San Mateo Kings Mountain Comment
  SEINET12045035  Calochortus uniflorus D. D. Keck 1932-1 1496 San Mateo above Woodside on La Honda Rd. E slope of Santa Cruz Mts Comment
  RSA18382  Calochortus venustus Carl B. Wolf 1927-7-1 526 San Mateo Above Emerald Lake, back of Redwood City Comment
  CAS-BOT-BC494041  Calochortus venustus Mrs. Alvin Seale 1932-6-5 s.n. San Mateo Hills near Redwood City Comment
  SEINET5781153 Image available Calycadenia multiglandulosa L. S. Rose 1941-6-12 41268 San Mateo W of Redwood City, Emerald Lake Comment
  CAS-BOT-BC436446  Calystegia occidentalis Phillip C. Wheeler 1965-6-16 s.n. San Mateo San Bruno Mountain, Colma Canyon east Comment
  JEPS109222  Calystegia occidentalis subsp. occidentalis D. W. Taylor 2005-9-26 19491 San Mateo 1 mile S along coast from Franklin Point, Ano Nuevo State Reserve. Comment
  CAS-BOT-BC224651  Calystegia purpurata subsp. purpurata Lewis S. Rose 1950-5-20 50141 San Mateo Emerald Lake region, hills w. of Redwood City 243 Comment
  CAS-BOT-BC224654  Calystegia purpurata subsp. purpurata Josephine D. Randall 1907-7-24 105 San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  CAS-BOT-BC224658  Calystegia purpurata subsp. purpurata Robert Robertson 1954-5-1 107 San Mateo 2 miles east of Pescadero 30 Comment
  CAS-BOT-BC224662  Calystegia purpurata subsp. purpurata Fred Hemphill 1973-5-6 764 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  JROH1842  Calystegia purpurata subsp. purpurata Toni Corelli 2010-5-19 369 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 8 129 Comment
  RSA10280  Camissonia cheiranthifolia subsp. cheiranthifolia H. A. Barker 1927-5-14 670 San Mateo North of Half Moon Bay. Comment
  RSA195665  Camissonia micrantha John H. Thomas 1967-5-2 12733 San Mateo Colma. Near Hillside Blvd. at Cypress Lawn Cemetery Comment
  POM126855  Camissonia ovata R. L. Pendleton 1909-4-3 1342 San Mateo Along Los Trancos Creek, 4 miles back of Stanford University 145 Comment
  POM271879  Camissonia ovata Lyman Benson 1928-4-21 96 San Mateo Stanford University, Santa Cruz Mt., San Francisquito Creek. 122 Comment
  RSA125833  Camissonia ovata G. R. Campbell 1956-4-4 3 San Mateo La Honda Rd (from Hwy 5) to Woodside, 3 mi from Mt Home-Portola road. 610 Comment
  CAS-BOT-BC160322  Camissoniopsis cheiranthifolia subsp. cheiranthifolia L. R. Abrams 1909-8-2 4250 San Mateo Pebble Beach, Pescadero Comment
  UC306754  Campanula prenanthoides A. D. E. Elmer June, 1903 4283 San Mateo Pescadero Creek Comment
  SEINET10939004  Campanula prenanthoides Wolf 1927-8-13 WOLF 714 San Mateo LA HONDA GRADE, SANTA CRUZ MTNS Comment
  CAS-BOT-BC37162  Capsella bursa-pastoris David D. Keck 1932-2-16 1378 San Mateo Portola. Comment
  CAS-BOT-BC37163  Capsella bursa-pastoris George Oberlander 1949-5-13 169 San Mateo San Francisco Watershed. North boundary. Comment
  JROH1481  Cardamine californica D. D. Davis 1903-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  JEPS90450  Cardamine californica var. integrifolia Dean W. Taylor 1992-3-19 12335 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
  JROH1496  Cardamine oligosperma John Hunter Thomas 1981-4-5 20261 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  POM202951  Cardamine oligosperma Alice Eastwood 1933-4-30 s.n. San Mateo Lake Pilarcitos. Comment
  RSA101040  Cardamine oligosperma G. Oberlander 1949-4-30 123 San Mateo Pilarcitos Canyon. San Francisco Watershed Reserve. Comment
  CDA6871  Carduus pycnocephalus Wm. Davis 1962-4-24 San Mateo Gorman Hay Barn, Tanforan Race Track, San Bruno. 0 Comment
  JROH581  Carduus pycnocephalus subsp. pycnocephalus John Hunter Thomas 1981-5-8 20567 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA22241  Carduus tenuiflorus J. T. Howell 1939-6-16 14741 San Mateo Skyline Blvd. near Crystal Springs Lake Comment
  RSA159424  Carex amplifolia John H. Thomas 1961-5-14 9365 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  JROH4322  Carex bolanderi Toni Corelli 2005-8-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Causeway, Trail 13, west of Leonard's Bridge. 106 Comment
  CAS-BOT-BC19539  Carex bolanderi Peter Rubtzoff 1953-5-14 1339 San Mateo Pilarcitos Creek Canyon 1 to 2 miles downstreams from Pilarcitos Lake. 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
  CAS-BOT-BC18921  Carex densa Alice Eastwood; John Thomas Howell 1937-5-7 4327 San Mateo Visatacion Valley. Comment
Read comments
Oct 30 2021
  JROH4327  Carex densa Herbert Dengler 1959-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4328  Carex densa John H. Thomas 1967-6-1 12946 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4330  Carex densa John H. Thomas 1967-6-1 12984 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA783464  Carex densa Peter Rubtzoff 1975-5-21 7976 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction Comment
  UCD140267  Carex densa Alice Eastwood; John Thomas Howell 1937-5-7 4327 San Mateo Visatacion Valley. Comment
  CAS-BOT-BC21814  Carex harfordii Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5251 San Mateo Tunitas. 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
  SEINET7561257 Image available Carex harfordii Andrew L. Hipp, Jacob Pollock 1999-5-22 282 San Mateo Marsh at the mouth of Pescadero Creek, near Pescadero State Beach, north pond. 6 Comment
  CAS-BOT-BC227481  Carex harfordii Peter Rubtzoff; Elizabeth McClintock; Paul Reeberg 1989-6-3 s.n. San Mateo San Bruno Mountains. In the main drainage area of the Shearwater area, west of Bayshore Boulevard 76 Comment
  POM248613  Carex harfordii J. T. Howell 1938-5-1 13781 San Mateo Near South San Francisco. Comment
  JROH5599  Carex nudata John Rawlings 2013-4-30 1180 San Mateo Jasper Ridge Biological Preserve, Stanford University. Old horse trail crossing of San Francisquito Creek near Boething Nursery site. (Leave Trail 2 extension at metal post SE of last redwoods). 66 Comment
  CAS-BOT-BC119446  Carex nudata W. R. Dudley 1903-6-6 s.n. San Mateo Below Iversons near margin of Peter;s Creek at mouth. Comment
  CAS-BOT-BC119343  Carex obnupta Walter Knight; Irja Knight 1963-10-7 323 San Mateo Cow Trough Ravine. San Bruno Mt. Comment
  CAS-BOT-BC117642  Carex serratodens LeRoy Abrams 1902-5-4 s.n. San Mateo Woodside. Comment
  SEINET7575213 Image available Carex serratodens Wilhelm Suksdorf 1913-6-23 252 San Mateo Brooklet east of Crystal Springs Lake. Comment
  CDA34492  Carex subbracteata D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .176 San Mateo Swanton Rd just S of Ano Nuevo above Weddell Creek. Comment
  JROH4361  Carex subbracteata W. Lennihan 1989-5-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Mapache Trail. Comment
  POM79200  Carex subbracteata A. D. E. Elmer 1903-06 4429 San Mateo Crystal Springs Lake. Comment
  UC1159367  Carex subbracteata J. H. Thomas 1959-4-4 7657 San Mateo about 0.7 mi s Gazos Creek (about 6.5 mi s from Pescadero) 45 Comment
  CAS-BOT-BC116814  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
  JROH4373  Carex tumulicola John Rawlings, Carol Zabel, Ann Lambrecht 2005-6-15 0909 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Several yards from the intersection of Trail 2 with Trail 3. 86 Comment
  UC826092  Carex tumulicola Wilhelm N. Suksdorf 1913-6-30 377 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC230111  Carpobrotus chilensis Daniel Cohen 1953-5-9 96 San Mateo Sea cliffs facing ocean at Pebble Beach Comment
  UC32963  Carthamus lanatus F. T. Bioletti 1892-7-31 San Mateo South San Francisco Comment
  CDA19907  Carthamus lanatus L. Kuwahara 2002-6-17 PDR 065011 San Mateo San Francisco Bay Area; at 12445 Old La Honda Rd. 0 Comment
  JEPS103885  Castilleja affinis subsp. affinis T. I. Chuang 1991-7-20 7878 San Mateo Mussel Rock Comment
  JEPS88832  Castilleja affinis subsp. affinis T. I. Chuang 1991-7-20 7878 San Mateo Mussel Rock Comment
  JROH3940  Castilleja affinis subsp. affinis John H. Thomas 1961-4-29 9187 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS60426  Castilleja affinis subsp. affinis T. I. Chuang and F. M. Chuang 1969-6-22 6666 San Mateo 1.5 mi from Verde Road junction with Lobitos Creek Road Comment
  JROH3935  Castilleja affinis subsp. affinis Daniel Cohen 1953-4-11 21 San Mateo Jasper Ridge Biological Preserve, Stanford University; off Jasper Ridge Road Comment
  UCSC007730  Castilleja affinis subsp. affinis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  LA209419  Castilleja ambigua David D. Keck; 1932-4-29 1453 San Mateo Burlingame-San Mateo city limits Comment
  JEPS6959  Castilleja ambigua subsp. ambigua Peter H. Raven 1950-4-30 1964 San Mateo Montara 15 Comment
  UC406881  Castilleja ambigua subsp. ambigua David D. Keck 1927-6-10 394 San Mateo Montara Point; Radio Station 0 Comment
  SBBG40478  Castilleja ambigua subsp. ambigua W. J. Dress 1951-5-12 3339 San Mateo 4.5 mi N of Pigeon Point Comment
  JROH3959  Castilleja attenuata John H. Thomas 1974-4-19 17159 San Mateo Jasper Ridge Biological Preserve, Stanford University; near area H Comment
  JEPS108121  Castilleja attenuata Dean Kelch 1993-3-30 s. n. San Mateo N of junction of I-280 and 92 nr SM Co Fire Dept. Comment
  JEPS25430  Castilleja densiflora subsp. densiflora Rimo Bacigalupi with L. R. Heckard, J. B. Roof and Lynn Harman 1961-4-24 7608 San Mateo Colma Canyon, just below road up to T.V. and radio stations on San Bruno Mountain San Bruno Mountain 228 Comment
  JROH3972  Castilleja densiflora subsp. densiflora D. D. Davis 1903-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  JROH3977  Castilleja densiflora subsp. densiflora John H. Thomas 1961-4-29 9189 San Mateo Jasper Ridge Biological Preserve, Stanford University; at western end of serpentine outcroppings Comment
  JROH3978  Castilleja densiflora subsp. densiflora John H. Thomas 1971-4-10 15751 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3989  Castilleja rubicundula subsp. lithospermoides L. R. Abrams 1934-4-18 13568 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  SBBG33415  Castilleja rubicundula subsp. lithospermoides A. D. E. Elmer -Jun-1903 4420 San Mateo Crystal Springs Lake Comment
  JEPS34324  Castilleja subinclusa subsp. franciscana L. R. Heckard, and Rimo Bacigalupi 1963-7-2 1329 San Mateo just e Adobe Ave. in San Pedro Valley (grade of old county road over San Pedro Mt.); San Pedro Mt., San Pedro Valley 60 Comment
  JEPS60425  Castilleja subinclusa subsp. franciscana T. I. Chuang and F. M. Chuang 1969-6-22 6665 San Mateo 0.5 mi n Lobitos Creek Road junction with Verde Road (on Lobitos Creek Road) Comment
  JEPS18909  Castilleja subinclusa subsp. franciscana Rimo Bacigalupi with G. Thomas Robbins 1955-8-4 5452 San Mateo just w Crystal Springs Lake, upper south lake (along Skyline Blvd (Calif Hwy 5), 3.2 mi n of its junction with the Kings Mtn. road (not the La Honda road)) 594 Comment
  SBBG51587  Castilleja subinclusa subsp. franciscana J. Doty 1969-3-26 595 San Mateo E of jct of St Hwy 92, near summit of coast range, San Francisco Peninsula Comment
  JEPS19720  Castilleja wightii Peter H. Raven 1957-6-24 10964 San Mateo just s Linda Mar Comment
  JEPS20780  Castilleja wightii Lawrence Beane 1949-6-2 484 San Mateo s of Pescadero (beyond lighthouse on hillside, Highway 1) Comment
  JEPS47395  Castilleja wightii L. R. Heckard 1964-6-24 1397 San Mateo San Bruno Mt.; near television transmitting towers 304 Comment
  UC1039783  Castilleja wightii H. L. Mason 1927-4-24 3699 San Mateo Mouth of San Gregorio Creek Comment
  JEPS103881  Castilleja wightii T. I. Chuang and F. M. Chuang 1991-7-1 7846 San Mateo 1.1 mile N or Montara Comment
  RSA18358  Castilleja wightii Carl B. Wolf 1929-5-25 3730 San Mateo Just north of Pigeon Pt. Comment
  RSA189726  Castilleja wightii Noel Holmgren, James L. Reveal 1966-6-5 2632 San Mateo Skyline Boulevard (California 35), 0.25 mile south of junction with California 1. Comment
  RSA517381  Castilleja wightii L. R. Heckard, R. C. Bacigalupi 1963-7-2 1330 San Mateo Along old country road over San Pedro and Montara mountains; northern flank of San Pedro Mt. 152 Comment
  RSA523428  Castilleja wightii L. R. Heckard, R. C. Bacigalupi 1963-7-2 1328 San Mateo Near home of John gay. Slopes above S. Fk. of San Pedro Creek. SE of town of San Pedro Valley. 152 Comment
  SEINET8357659  Castilleja wightii A. D. E. Elmer 1903-1 4761 San Mateo San Pedro. Comment
  CAS-BOT-BC39386  Caulanthus lasiophyllus Roxania Strichfield 1910-4-30 490 San Mateo Santa Cruz Mountain Peninsula. Hills near Felt Lake. Comment
  CAS-BOT-BC48304  Ceanothus cuneatus George Oberlander 1950-3-11 499 San Mateo West Sawyer Ridge Comment
  CAS-BOT-BC48397  Ceanothus cuneatus var. cuneatus Mrs. Campbell; Mrs. Miere 1920-3-1 s.n. San Mateo Los Altos Comment
  UC311168  Ceanothus cuneatus var. cuneatus A. D. E. Elmer March, 1903 4578 San Mateo Portola Comment
  CAS-BOT-BC49652  Ceanothus foliosus var. foliosus J. H. Thomas 1949-4-14 280 San Mateo Kings Mountain. Roadside near Woodside. Comment
  UCSB3900  Ceanothus foliosus var. foliosus Walker, Clifford 1954-4-20 San Mateo Road to Woodside Comment
  JROH3532  Ceanothus oliganthus var. sorediatus John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM223329  Ceanothus papillosus L. S. Rose 1935-5-3 35144 San Mateo Skyline Blvd, W of Saratoga. 732 Comment
  CAS-BOT-BC52285  Ceanothus thyrsiflorus C. F. B. 1902-4-12 511 San Mateo La Honda Comment
  CAS-BOT-BC52306  Ceanothus thyrsiflorus Mrs. Ernest Meiere 1920-5-2 s.n. San Mateo Los Altos Comment
  UC79918  Ceanothus thyrsiflorus Katharine Brandegee May 1890 19 San Mateo San Gregorio, Santa Cruz Mts. Santa Cruz Mts., San Gregorio Comment
  SD37640  Ceanothus thyrsiflorus var. griseus Edith A. Purer 1933-5-5 3601 San Mateo Alpine Road Comment
  JROH589  Centaurea calcitrapa John H. Thomas 1974-8-3 17500 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC91552  Centaurea calcitrapa J. W. Congdon 1901-7-27 San Mateo San Mateo Comment
  CAS-BOT-BC274583  Centaurea calcitrapa A. D. E. Elmer 1903-7-1 4961 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC274595  Centaurea calcitrapa Phillip C. Wheeler 1965-5-17 s.n. San Mateo San Bruno Mountain. Crocker Hills near Cow Palace Comment
  CDA35517  Centaurea calcitrapa Ed Finley 1986-9-3 s.n. San Mateo Near Pilarcitos Lake. 0 Comment
  UCD130007  Centaurea calcitrapa P. B. Kennedy 1916-5-7 s.n. San Mateo vacants lots around Burlingame. Comment
  CDA7169  Centaurea melitensis D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  UC306679  Centaurea melitensis A. D. E. Elmer 1903-6-1 4281 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC277119  Centaurea melitensis George Oberlander 1950-5-6 895 San Mateo San Francisco Watershed Reserve. Near San Andreas Lake Comment
  JROH600  Centaurea melitensis John H. Thomas 1970-5-30 15980 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS10207  Centaurium davyi Rimo Bacigalupi with G. T. Robbins 1954-6-18 4560 San Mateo Point Ano Nuevo Comment
  RSA133075  Centaurium davyi John H. Thomas 1954-6-11 4276 San Mateo 0.8 mile north of Pescadero Creek. 30 Comment
  UC763213  Centaurium davyi R. F. Hoover 1941-5-20 5112 San Mateo near Martin Creek (grade above Portola on La Honda road) Comment
  CAS-BOT-BC272816  Centromadia parryi subsp. parryi David D. Keck 1931-10-5 1291 San Mateo Salada Beach Comment
  SD5599  Centromadia pungens Ulysses S. Grant IV 1925-9-2 San Mateo Burlingame 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
  UC89050  Centromadia pungens subsp. pungens K. Brandegee 1901-9-1 San Mateo South San Francisco Comment
  JEPS20332  Centromadia pungens subsp. pungens Lewis S. Rose 1949-8-14 49166 San Mateo Bayshore Blvd. San Mateo Comment
  CAS-BOT-BC384880  Cerastium arvense Elizabeth McClintock; Paul Reeberg 1989-3-21 s.n. San Mateo San Bruno Mountains. On Bitter Cherry Ridge 182 Comment
  CAS-BOT-BC388387  Cerastium glomeratum A. D. E. Elmer 1903-4-1 4473 San Mateo San Bruno Hills Comment
  JROH1688  Cerastium glomeratum John H. Thomas 1957-4-16 6649 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC400167  Ceratophyllum demersum James McMurphy 1905-10-29 s.n. San Mateo Lake above Portola Comment
  POM139639  Cercocarpus betuloides A. D. E. Elmer 1903-05 4530 San Mateo Searsville Lake Comment
  CAS-BOT-BC135475  Cercocarpus betuloides var. betuloides Margaret A. Barry 1937-4-21 11 San Mateo Woods on Coal Mine Ridge Comment
  JROH3623  Cercocarpus betuloides var. betuloides John H. Thomas 1964-4-7 10301 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near edge of Searsville Lake. Comment
  JROH5927  Cercocarpus betuloides var. betuloides L. Fleycher 1986-2-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; east of Searsville Lake. Comment
  UC1076471  Chenopodium multifidum Herbert L. Mason 1924-10-19 1115 San Mateo Colma Comment
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Apr 6 2009
  RSA10407  Chenopodium murale C. B. Wolf 1927-6-15 2167 San Mateo Along Skyline Drive, 8 mi. S of San Francisco. Comment
  JROH1825  Chenopodium rubrum var. humile John Hunter Thomas 1980-11-27 20195 San Mateo Jasper Ridge Biological Preserve, Stanford University; old bathing beach area Comment
  CAS-BOT-BC497725  Chlorogalum pomeridianum Ned Cahill 1974-4-29 171 San Mateo Serpentine fields bordered by chaparral near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  UCR240779  Chlorogalum purpureum T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3519 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
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Aug 30 2018
  CAS-BOT-BC246313  Chloropyron maritimum subsp. palustre S. D. Halsey 1908-10-1 s.n. San Mateo Redwood City Comment
  UCR123135  Chondrilla juncea Don Pendleton 2002-5-2 s.n. San Mateo San Francisco Bay Region, San Carlos, across the street from 1414 El Camino Real, next to railroad right of way, at the 'T' intersection of Belmont Ave. and El Camino Real 61 Comment
  JEPS57718  Chorizanthe cuspidata var. cuspidata William S. Cooper 1925-5-28 12 San Mateo Salada Comment
  JROH3223  Chorizanthe diffusa W. R. Dudley 1910-5-29 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC36406  Chrysolepis chrysophylla D. E. Breedlove 1974-5-13 36213 San Mateo Brushy slopes San Pedro Valley Park, Pacifica 152 Comment
  RSA476617  Chrysolepis chrysophylla E. A. Purer 1932-7-18 4001 San Mateo King's Mountain. Comment
  UC5444  Chrysolepis chrysophylla var. minor J. Burtt Davy Jun 21 1893-Jun 23 1893 1127 San Mateo Pilarcitos Lake and Pilarcitos Canyon; Pilarcitos Lake, Pilarcitos Canyon Comment
  JROH2585  Cicendia quadrangularis John H. Thomas 1968-4-19 14301 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC277887  Cirsium brevistylum David D. Keck 1934-7-7 2932 San Mateo Kings Mountain, west of summit 579 Comment
  UC306682  Cirsium brevistylum A. D. E. Elmer 1903-6-1 4277 San Mateo Crystal Springs Lake Comment
  RSA0070579  Cirsium brevistylum A. D. E. Elmer 1903-06 4277 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC100941  Cirsium fontinale var. fontinale Alice B. Wright 1921-4-1 s.n. San Mateo Cyrstal Springs Comment
  CAS-BOT-BC100944  Cirsium fontinale var. fontinale A. D. E. Elmer 1903-6-1 4292 San Mateo Crystal Springs Lake Comment
  POM261287  Cirsium fontinale var. fontinale J. T. Howell 1939-6-16 14746 San Mateo Crystal Springs Lake Comment
  SJSU2901  Cirsium fontinale var. fontinale G. E. Pilz 1965-8-3 156 San Mateo E side Crystal Springs Reservoir in outer S Coast Ranges 121 Comment
  UC1416532  Cirsium fontinale var. fontinale George E. Pilz 1972-5-22 789 San Mateo e side of Crystal Springs Reservoir, Interstate 280 cuts through colony Crystal Springs Reservoir 121 Comment
  UC306684  Cirsium fontinale var. fontinale A. D. E. Elmer 1903-6-1 4292 San Mateo Crystal Springs Lake Comment
  SEINET5506233  Cirsium fontinale var. fontinale Lewis S. Rose San Mateo Comment
  UC30792  Cirsium occidentale var. candidissimum J. Burtt Davy 1895-4-20 1053 San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC280131  Cirsium occidentale var. venustum Margaret A. Barry 1937-7-17 201 San Mateo Coal Mine Ridge Comment
  UC30812  Cirsium occidentale var. venustum Alice Eastwood 1896-5-1 San Mateo Crystal Springs Comment
  UC30885  Cirsium occidentale var. venustum J. Burtt Davy 1895-4-20 1083 San Mateo San Mateo Creek Comment
  CAS-BOT-BC280134  Cirsium occidentale var. venustum C. F. Leitholt 1894-7-28 s.n. San Mateo Buckhorn Ranch, near Portola Comment
  CAS-BOT-BC280523  Cirsium quercetorum A. D. E. Elmer 1903-6-1 4290 San Mateo Crystal Springs Lake Comment
  JEPS27347  Cirsium quercetorum Rimo Bacigalupi with L. Heckard and Jim Roof 1961-4-24 7607 San Mateo meadow at summit of divide between Colma Canyon and Guadulupe Valley (just n of San Bruno Mt.); Colma Canyon, Guadalupe Valley, San Bruno Mt. 205 Comment
  JEPS80473  Cirsium quercetorum L. R. Heckard 1981-5-25 5663 San Mateo on e side of the s end Lower Crystal Springs Reservoir (nw of junction (freeway interchange) of highway state <sic> 92 and U. S. 280) Comment
  OBI62652  Cirsium quercetorum Casey J. Stewman 2003-6-2 s.n. San Mateo Near jctn of hwy 280 and hwy 92. More [plants] found on San Francisco Water District open space lands adj to project site. Comment
  UC134771  Cirsium quercetorum Dr. E. B. Copeland 1903-6-7 3316 San Mateo Montara Point Pacific Coast, Montara Point Comment
  UC306688  Cirsium quercetorum A. D. E. Elmer 1903-6-1 4290 San Mateo Crystal Springs Lake Comment
  HSC24013  Cirsium vulgare Mary Katherine Wicksten 1971-6-30 142 San Mateo Huddart Park, by horse ring Comment
  POM271758A  Clarkia purpurea subsp. purpurea Lyman Benson 1930-5-12 2121 San Mateo Lake Searsville, Stanford University; Santa Cruz mountain range, San Francisco Bay drainage area. 152 Comment
  JEPS127894  Clarkia purpurea subsp. quadrivulnera Adam C. Schneider 2013-5-17 178 San Mateo Comment
  JROH3005  Clarkia purpurea subsp. quadrivulnera John Hunter Thomas 1981-5-5 20537 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC58847  Clarkia purpurea subsp. quadrivulnera J. Burtt Davy 1893-6-17 792 San Mateo Belmont Comment
  CAS-BOT-BC163977  Clarkia purpurea subsp. quadrivulnera W. R. Dudley 1894-7-7 s.n. San Mateo Summit of Bear Gulch Comment
  POM271800  Clarkia purpurea subsp. quadrivulnera Lyman Benson 1930-4-17 2088 San Mateo Stanford University, foothills. Upper Sonoran. 122 Comment
  CAS-BOT-BC165147  Clarkia rubicunda Louis C. Wheeler 1965-6-21 s.n. San Mateo Sierra Point Comment
  CAS-BOT-BC165149  Clarkia rubicunda Walter Knight; Walter Knight 1963-6-24 s.n. San Mateo Quarry 4 Comment
  CAS-BOT-BC165150  Clarkia rubicunda Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo In old quarry in Colma Canyon Comment
  JEPS127875  Clarkia rubicunda Adam C. Schneider with C. Matt Guilliams 2013-5-17 186 San Mateo Crystal Springs Reservoir. Under large transmission tower. Comment
  UC1071884  Clarkia rubicunda H. and M. Lewis 1951-6-28 862 San Mateo 0.6 mi s of road to Redwood City (Hwy. 1); Tunitas Creek Comment
  UC112979  Clarkia rubicunda Katharine Brandegee 1908-7-26 San Mateo near Half Moon Bay; Moss Beach Comment
  UC114009  Clarkia rubicunda Katharine Brandegee 1908-7-26 San Mateo near Half Moon Bay; Moss Beach Comment
  UC306513  Clarkia rubicunda A. D. E. Elmer June, 1903 4310 San Mateo Crystal Springs Lake Comment
  UC615203  Clarkia rubicunda Beryl O. Schreiber 1932-5-29 310 San Mateo Spring Valley Water Company Road 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
  RSA458855  Clarkia rubicunda E. S. Spalding 1924-8-3 s.n. San Mateo 3 miles west of Redwood City Comment
  SJSU11020  Clarkia rubicunda P. L. Rucker 1963-7-20 San Mateo Alpine Rd Comment
  UC1279922  Clarkia rubicunda Peter H. Raven 1957-6-30 11011 San Mateo 1.8 mi s Sharp Park (on State Highway 1) Comment
  UCD104833  Clarkia rubicunda Peter H. Raven 1957-7-4 11046 San Mateo 6.1 miles from San Gregorio on road to La Honda, near San Gregorio Creek. Comment
  POM271822  Clarkia rubicunda subsp. blasdalei Lyman Benson 1934-7-29 6114 San Mateo Moss Beach. Pcific Ocean watershed. 15 Comment
  RSA23202  Clarkia rubicunda subsp. blasdalei I. L. Wiggins 1938-7-9 8933 San Mateo Pigeon Point, about one half mile north of the Light House. Comment
  JROH3331  Claytonia exigua subsp. exigua John H. Thomas 1958-2-15 6992 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC439290  Claytonia exigua subsp. exigua H. A. Dutton 1900-2-25 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  UC7902  Claytonia parviflora subsp. parviflora J. Burtt Davy 1893-6-17 793 San Mateo Belmont Comment
Read comments
Sep 4 2011
  CAS-BOT-BC439805  Claytonia perfoliata Ned Cahill 1974-4-29 168 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  RSA276897  Claytonia perfoliata subsp. mexicana J. M. Miller 1977-3-23 590 San Mateo Purisimo Canyon, 1.4 miles E of Hwy 1 on Purisimo Canyon Road. Comment
  CAS-BOT-BC443657  Claytonia perfoliata subsp. perfoliata Peter H. Raven 1950-2-25 1381 San Mateo San Bruno Mountains, above Brisbane 91 Comment
  CAS-BOT-BC443659  Claytonia perfoliata subsp. perfoliata Josephine D. Randall 1907-6-29 295 San Mateo Santa Cruz Peninsula. Kings Mt. Road. Comment
  JROH3349  Claytonia perfoliata subsp. perfoliata John H. Thomas 1977-4-8 18525 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3350  Claytonia perfoliata subsp. perfoliata John Hunter Thomas 1981-4-5 20288 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek Comment
  SEINET12099148  Clematis lasiantha Unknown 1906-1 19 San Mateo Fl Woodside, Santa Cruz Mts Comment
  CAS-BOT-BC499397  Clintonia andrewsiana A. D. E. Elmer 1903-5-1 4331 San Mateo Butano Creek Comment
  RSA15294  Clintonia andrewsiana Carl B. Wolf 1927-4-3 263 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  POM15102  Collinsia multicolor C. F. Baker 1902-4-6 647 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC240929  Collinsia multicolor W. R. Dudley 1906-5-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Hills S.W. of San Mateo Comment
  JEPS19373  Collinsia sparsiflora var. sparsiflora G. Thomas Robbins 1937-4-11 86 San Mateo near Spring Valley Lake (along rd to Woodside) 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
  RSA191938  Conioselinum gmelinii R. F. Thorne, P. Everett 1963-6-9 32237 San Mateo On top of San Bruno Mountain on Kamchatka Point near the TV tower 335 Comment
  JROH211  Conium maculatum John H. Thomas 1975-6-5 17927 San Mateo Jasper Ridge Biological Preserve, Stanford University; near lowflow crossing Comment
  JROH1848  Convolvulus arvensis John Hunter Thomas 1978-5-12 19200 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC286209  Conyza canadensis Walter Knight; Irja Knight; Elizabeth McClintock 1964-9-11 s.n. San Mateo San Bruno Mountain. Point San Bruno Comment
  CAS-BOT-BC286210  Conyza canadensis Walter Knight; Irja Knight 1963-11-8 390 San Mateo San Bruno Mountain. Hillside Blvd., near Serbian Cemetery 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
  JEPS64357  Corallorhiza striata W. L. Jepson 1922-3-19 9539 San Mateo Lake San Andreas Vicinity of San Francisco Bay 182 Comment
  JROH4765  Corallorhiza striata John Hunter Thomas 1985-4-25 23568 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET4676141  Cordylanthus pilosus Lewis S. Rose 1941-8-9 41362 San Mateo Woodside.; 0 60 Comment
  RSA100992  Cordylanthus rigidus subsp. rigidus G. Oberlander 1949-8-20 381 San Mateo San Andreas Valley, San Francisco Watershed Reserve. Comment
  RSA51367  Cordylanthus rigidus subsp. rigidus L. S. Rose 1949-8-14 49163 San Mateo Emerald Lake, hills west of Redwood City. 122 Comment
  SEINET11859850  Corethrogyne californica Unknown 1932-5-8 9109 San Mateo above Spring Valley Lakes Comment
  CAS-BOT-BC101475  Corethrogyne filaginifolia J. H. Thomas 1958-6-11 7221 San Mateo About 4.3 miles due east of Belmont near Crystal Springs Reservoir 91 Comment
  POM57992  Corethrogyne filaginifolia var. californica C. F. Baker 1902-5-10 810 San Mateo Crystal Springs Lake. Comment
  POM132435  Cornus californica C. F. Baker 1902-9-2 1551 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC209818  Cornus glabrata C. B. Wolf 1931-8-20 2326 San Mateo Los Trancos Creek, 2 miles back of Stanford University, near Schenkel's Camp 91 Comment
  CAS-BOT-BC209820  Cornus glabrata Alice Eastwood 1912-6-10 344 San Mateo Crystal Springs Comment
  UC1211927  Coronopus didymus John H. Weiler, B. Hirano 1961-3-22 6132 San Mateo Moss Beach Comment
  CDA18371  Cortaderia jubata G. D. Barbe 1978-9-26 2443 San Mateo Skylawn Memorial Park; drive from Hwy 92 into the park. 716 Comment
  CDA1904  Cortaderia jubata G. D. Barbe 1977-11-17 2353 San Mateo At intersection of Skyline Blvd. (Hwy 35) and Hwy 92 at Skylawn Memorial Park, between San Mateo and Half Moon Bay. 0 Comment
  CAS-BOT-BC180360  Corylus cornuta subsp. californica W. S. Atkinson 1901-7-3 s.n. San Mateo Pescadero. Santa Cruz Peninsula Comment
  JROH1333  Corylus cornuta subsp. californica John H. Thomas 1974-5-3 17246 San Mateo Jasper Ridge Biological Preserve, Stanford University; in redwood area below dam Comment
  POM196594  Corylus cornuta var. californica W. R. Dudley 1902-5-17 s.n. San Mateo King Mountain rd. Comment
  RSA119710  Corylus cornuta var. californica James I. McMurphy 1902-05 s.n. San Mateo Kings Mountain. Comment
  RSA481440  Corylus cornuta var. californica Paul C. Silva 1948-1-31 2621 San Mateo Skyline Blvd. just north of junction of Alpine Creek Road. 701 Comment
  RSA15260  Corylus cornuta var. californica C. B. Wolf 1927-2-26 223 San Mateo Near the road on the La Honda Grade. Comment
  JROH3635  Cotoneaster pannosus John H. Thomas 1974-10-12 17622 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET7876342 Image available Cotoneaster pannosus A. T. Whittemore 2001-1 01 -012 San Mateo Garden of 418 Hillway Drive., Redwood City 98 Comment
  CAS-BOT-BC287300  Cotula australis John H. Thomas 1965-4-29 10609 San Mateo San Bruno Mt in N part of county 396 Comment
  JROH660  Cotula coronopifolia John Hunter Thomas 1981-4-5 20270 San Mateo Jasper Ridge Biological Preserve, Stanford University; on dam Comment
  JROH663  Cotula coronopifolia John Hunter Thomas 1982-11-6 21198 San Mateo Jasper Ridge Biological Preserve, Stanford University; along edge of Searsville Lake delta Comment
  CAS-BOT-BC291415  Cotula coronopifolia Josephine D. Randall 1911-3-27 s.n. San Mateo Between Pacific Grove and Moss Beach, Monterey Peninsula Comment
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Oct 27 2021
  CAS-BOT-BC291477  Cotula coronopifolia John Thomas Howell 1924-9-28 660 San Mateo Leslie Salt Rifinery, San Mateo Comment
  SJSU2294  Cotula coronopifolia C. W. Sharsmith 1950-4-16 6623 San Mateo near Pescadero Point Comment
  UC1119273  Cotula coronopifolia G. E. Sindel 1935-7-25 313 San Mateo mouth Pescadero Creek Comment
  CAS-BOT-BC427607  Crassula aquatica W. R. Dudley 1910-5-26 s.n. San Mateo Santa Cruz Mountain Peninsula. Coal Mine Ridge, Black Mountain Comment
  CAS-BOT-BC427840  Crassula connata Margaret A. Barry 1937-5-15 129 San Mateo Coal Mine Ridge. Comment
  UCSC007735  Crassula connata Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CDA4433  Crepis vesicaria subsp. taraxacifolia D. G. Kelch 2002-5-15 s.n. San Mateo Along I-280 W of Woodside. 0 Comment
  JROH5885  Crepis vesicaria subsp. taraxacifolia Ruth Porter 1998-4-28 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1954  Croton setiger John H. Thomas 1959-8-22 8076 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1962  Croton setiger John Hunter Thomas 1988-8-21 24565 San Mateo Jasper Ridge Biological Preserve, Stanford University; along "main road" Comment
  JROH5622  Cryptantha microstachys John Rawlings 2014-5-6 1223 A San Mateo Jasper Ridge Biological Preserve, Stanford University; on the top of Trevor's Knoll, about 70 m north of Trail 10. 181 Comment
  RSA728109  Cupressus abramsiana subsp. butanoensis John Silba 2004-12-28 B- 422 San Mateo Pescadero County Park, on Butano Ridge, ca. 5 miles east of Dearborn Park Road 442 Comment
  CAS-BOT-BC80786  Cupressus macrocarpa John H. Thomas 1967-5-2 12814 San Mateo Millbrae. Along Skyline Blvd. near Millbrae Ave. Comment
  SEINET3863390 Image available Cupressus macrocarpa K. Allred 1975-1-3 1270 San Mateo Half Moon Bay along Hwy 101 near Dune Beach.; 0 Comment
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Oct 30 2021
  RSA51358  Cuscuta salina L. S. Rose 1949-8-24 49167 San Mateo South San Francisco Comment
  JEPS22117  Cynara cardunculus subsp. cardunculus J. H. Thomas 1958-10-21 7487 San Mateo near intersection of Bayshore Highway and Main Street; Redwood City Comment
  JROH5000  Cynodon dactylon John H. Thomas 1966-4-24 11581 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC676736  Cynoglossum grande Reed C. Rollins 1941-2-22 2942 San Mateo 8 mi. n.w. Palo Alto Comment
  JROH5016  Cynosurus echinatus John Rawlings 2013-4-13 1127 San Mateo Jasper Ridge Biological Preserve, Stanford University. Crest of ridge above Bear Creek serpentine. 96 Comment
  JROH4381  Cyperus eragrostis John Hunter Thomas 1982-11-6 21205 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta along edge of Searsville Lake. Comment
  CAS-BOT-BC114459  Cyperus eragrostis Ira L. Wiggins 1980-8-29 22264 San Mateo Bed of San Francisquite Creek, ca 200 m upstream from Pope Street bridge, Menlo Park Comment
  SBBG32286  Cyperus eragrostis L. S. Rose 1965-9-20 San Mateo Burlingame, Trousdale Drive and California Drive 9 Comment
  JROH5716  Cyperus erythrorhizos John Rawlings 2015-9-22 1640 San Mateo Jasper Ridge Biological Preserve, Stanford University. In mud of Corte Madera Creek delta near open water 104 Comment
  JROH23  Cystopteris fragilis John Hunter Thomas 1992-4-23 25153 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Rattlesnake Rocks and along trail to redwoods Comment
  JROH5024  Dactylis glomerata John Hunter Thomas 1985-5-21 23665 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near bridge Comment
  JROH5027  Dactylis glomerata John Hunter Thomas 1987-5-26 24319 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5030  Dactylis glomerata John Hunter Thomas 1988-5-25 24491 San Mateo Jasper Ridge Biological Preserve, Stanford University. SLAC corridor. Comment
  CAS-BOT-BC192232  Danthonia californica David D. Keck 1932-5-6 1479 San Mateo Just west of Millbrae Highlands 50 Comment
  CAS-BOT-BC192233  Danthonia californica L. R. A. 1902-5-11 2451 San Mateo Crystal Springs Comment
  CAS-BOT-BC192241  Danthonia californica R. S. Ferris 1921-5-28 2189 San Mateo Near Pescadero, coast road Comment
  CAS-BOT-BC192244  Danthonia californica A. D. E. Elmer 1903-6-1 4707 San Mateo Crystal Springs Lake Comment
  HSC82084  Danthonia californica Thomas W. Nelson, Jane P. Nelson 1980-5-3 5133 San Mateo Intersection of Hwy. 92 and Hwy. 280, W of San Mateo. Comment
  UCD60479  Danthonia californica R. Tofsrud 1947-6-14 s.n. San Mateo 1-2 mi. N of Pescadero on road to San Gregorio. Comment
  JEPS127871  Daucus pusillus Adam C. Schneider 2013-5-17 155 San Mateo Crystal Springs Reservoir Comment
  JROH230  Daucus pusillus John Hunter Thomas 1989-5-11 24742 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC23959  Daucus pusillus Mary Katherine Wicksten 1971-6-24 120 San Mateo Huddart Park, side of park entrance Comment
  JEPS30900  Deinandra corymbosa J. H. Thomas 1959-8-16 8067 San Mateo about 2 mi n of Pigeon Point 15 Comment
  JROH673  Deinandra corymbosa W. R. Dudley 1893-7-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Comment
  OBI16292  Deinandra corymbosa Lewis S. Rose 1965-9-4 65100 San Mateo Skyline blvd and Half Moon Bay Rd; Cahill Ridge 244 Comment
  UC2046132  Deinandra corymbosa Neal Kramer with Tom Mahony 2015-6-12 2150 San Mateo Redondo Bluffs, Half Moon Bay Comment
  CAS-BOT-BC299189  Deinandra corymbosa subsp. corymbosa A. D. E. Elmer 1903-7-1 4963 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC299203  Deinandra corymbosa subsp. corymbosa James I. McMurphy 1909-5-25 s.n. San Mateo Half Moon Bay Comment
  CAS-BOT-BC299216  Deinandra corymbosa subsp. corymbosa Class Collection 1940-1-1 s.n. San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC300007  Deinandra lobbii James I. McMurphy 1906-10-28 s.n. San Mateo San Francisquito Creek, along San Mateo-Santa Clara County line Comment
  CAS-BOT-BC292114  Delairea odorata Roxana S. Ferris 1920-3-8 1761 San Mateo Frenchmans Creek near ocean Comment
  CAS-BOT-BC292120  Delairea odorata Elizabeth McClintock; Walter Knight; Irja Knight 1964-1-12 s.n. San Mateo San Bruno Mountain. Crocker Ave. Comment
  CAS-BOT-BC9213  Delphinium californicum J. H. Thomas 1961-5-7 9279 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC9221  Delphinium californicum George Thomas Oberlander 1949-6-25 241 San Mateo Pilarcitos Canyon Comment
  JROH3429  Delphinium californicum subsp. californicum Richard L. Garber 1971-5-18 28 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC10288  Delphinium hesperium Alice Eastwood 1912-6-10 320 San Mateo Crystal Springs Comment
  CAS-BOT-BC10291  Delphinium hesperium P. H. Raven 1949-6-13 834 San Mateo near Belmont 121 Comment
  CAS-BOT-BC9869  Delphinium nudicaule Oliver Norvell 1931-4-18 1417 San Mateo Kings Mountain road. Comment
  CAS-BOT-BC9870  Delphinium nudicaule Josephine D. Randall 1907-6-29 312 San Mateo Kings Mountain road. Comment
  JROH3453  Delphinium patens subsp. patens John H. Thomas 1975-4-5 17711 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC7934  Delphinium variegatum Lewis S. Rose 1933-4-30 33125 San Mateo Redwood City Comment
  SJSU3145  Delphinium variegatum W. A. Dout 1957-5-10 20 San Mateo Emerald L district of Redwood City Comment
  CAS-BOT-BC7937  Delphinium variegatum subsp. variegatum John Hunter Thomas 1961-5-14 9386 San Mateo Along Canada Road near intersection of Edgewood Road 91 Comment
  UC118683  Delphinium variegatum subsp. variegatum C. F. Baker 1902-4-6 458 San Mateo Crystal Springs Lake Comment
  UC203054  Delphinium variegatum subsp. variegatum A. D. E. Elmer May 1903 4796 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC631  Dendromecon rigida subsp. rigida Oliver Norvell 1931-3-2 1396 San Mateo La Honda Grade. Comment
  CAS-BOT-BC192595  Deschampsia cespitosa subsp. holciformis Henry E. Wieser 1932-5-25 s.n. San Mateo Hills back of Burlingame on Hillside Drive Comment
  SJSU15773  Deschampsia cespitosa subsp. holciformis Toni Corelli 2010-6-1 636 San Mateo Wavecrest, west of Highway 1 in Half Moon Bay. 22 Comment
  CAS-BOT-BC192633  Deschampsia danthonioides David D. Keck 1932-4-29 1448 San Mateo Redwood City Comment
  JROH5045  Deschampsia danthonioides H. L. Mason 1921-5-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5051  Deschampsia danthonioides John H. Thomas 1983-6-29 22718 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC201908  Deschampsia elongata W. R. Dudley 1908-6-26 s.n. San Mateo Edge of Dry Pond, Coal Mine Ridge Road Comment
  JROH5061  Deschampsia elongata John Hunter Thomas 1977-6-16 18773 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM207175  Deschampsia holciformis E. B. Copeland 1903-6-10 3305 San Mateo Montara Point. Comment
  SEINET10527676  Deschampsia holciformis Edwin B. Copel 1903-6-10 Copeland 3305 San Mateo Montara Point. Comment
  CAS-BOT-BC905  Dicentra chrysantha Mrs. Ernest Meiere 1916-6-1 s.n. San Mateo Mt. Diablo Comment
  CAS-BOT-BC709  Dicentra formosa Charles Piper Smith 1922-4-29 3502 San Mateo Montara Mountain Comment
  UC9936  Dicentra formosa J. Burtt Davy 1895-4-21 1060 San Mateo Pilarcitos Creek Comment
  CAS-BOT-BC500897  Dichelostemma capitatum Margaret A. Barry 1937-5-15 119 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC500899  Dichelostemma capitatum Elmer I. Applegate 1895-5-8 703 a San Mateo San Francisquito Creek, Stanford University Comment
  CAS-BOT-BC500932  Dichelostemma capitatum Javier Penalosa 1963-2-23 2661 San Mateo San Bruno Mtn. Ravine south of Crocker Ave. 182 Comment
  CAS-BOT-BC500933  Dichelostemma capitatum Catherine A. Toschi 1963-2-23 63 :21 San Mateo North slope San Bruno Mountains above Crocker Avenue 152 Comment
  JROH4655  Dichelostemma capitatum subsp. capitatum John H. Thomas 1967-5-10 12854 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM276991  Dichelostemma capitatum subsp. capitatum Lyman Benson 1931-3-15 2635 San Mateo Emerald Lake; Redwood City; Mt. Range: Santa Cruz 152 Comment
  SBBG39530  Dichelostemma capitatum subsp. capitatum L. S. Rose 1970-4-8 San Mateo Black Mtn, W of San Mateo 121 Comment
  JROH4665  Dichelostemma congestum John Hunter Thomas 1982-4-23 20836 San Mateo Jasper Ridge Biological Preserve, Stanford University. Picnic area Comment
  CAS-BOT-BC150447  Diplacus aurantiacus Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC150450  Diplacus aurantiacus Elmer I. Applegate 1895-3-9 410 San Mateo Woodside road, near Stanford University Comment
  SBBG40470  Diplacus aurantiacus W. J. Dress 1951-5-12 San Mateo St Hwy 1, just S of Pigeon Point 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
  CDA19177  Diplotaxis tenuifolia D. Pendleton 2001-5-31 PDR 064471 San Mateo San Francisco Bay Peninsula; Burlingame. 0 Comment
  RSA780382  Dipsacus fullonum Lyman Benson 1937-7-25 8472 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  JROH1910  Dipsacus sativus John Hunter Thomas 1981-10-25 20773 San Mateo Jasper Ridge Biological Preserve, Stanford University; near main gate Comment
  CAS-BOT-BC121858  Dirca occidentalis Lewis S. Rose 1964-3-9 64004 San Mateo N end of Crystal Springs Lake 121 Comment
  CAS-BOT-BC121863  Dirca occidentalis F. G. Kraus 1893-5-27 s.n. San Mateo near La Honda Comment
  JROH4209  Dirca occidentalis John H. Thomas 1977-2-20 18470 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10776855 Image available Dirca occidentalis John H. Thomas 1958-2-15 Thomas 6980 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  POM169497  Disporum hookeri var. hookeri C. F. Baker 1903-04 5052 San Mateo Crystal Springs Lake. Comment
  UC204220  Disporum smithii A. D. E. Elmer May, 1903 4697 San Mateo Butano Creek Comment
  UC1001491  Dodecatheon clevelandii subsp. patulum H. J. Thompson 1948-2-23 1037 San Mateo sw Stanford University (e end of Jasper Ridge near Los Trancos Creek); sw of Stanford University, nr Los Trancos Creek Comment
  UC105762  Dodecatheon clevelandii subsp. patulum Brandegee Apr 1889 San Mateo San Mateo Comment
  JROH3380  Dodecatheon hendersonii Le Roy Abrams 1901-3-3 1119 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5548367  Dodecatheon hendersonii H. S. Gentry 1931-1 10 San Mateo 1.5 miles W of San Mateo, Half-Moon Bay road. Comment
  POM129378  Dodecatheon hendersonii subsp. cruciatum R. L. Pendleton 1907-4-13 1320 San Mateo Canyvess Springs-Deen Ridge. 549 Comment
  POM287490  Dodecatheon hendersonii subsp. cruciatum Lyman Benson 1929-3-9 1000 San Mateo North slope of rolling foothills at Woodsides. Comment
  RSA112455  Dodecatheon hendersonii subsp. cruciatum I. L. Wiggins 1929-3-24 3383 San Mateo On road to Searville Lake, back of Stanford University. Comment
  JROH1509  Draba verna John Hunter Thomas 1982-4-4 20820 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH1513  Draba verna John Hunter Thomas 1987-4-7 24172 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC435208  Drosanthemum floribundum Dr. Barton W. Evermann 1924-6-22 s.n. San Mateo Ano [Ano] Nuevo Island Comment
  CAS-BOT-BC159540  Drymocallis glandulosa var. glandulosa H. A. Lewis 1908-5-7 s.n. San Mateo Near Searsville Comment
  JROH3735  Drymocallis glandulosa var. wrangelliana D. E. Breedlove 1971-5-31 19349 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH3740  Drymocallis glandulosa var. wrangelliana John Hunter Thomas 1986-5-6 24019 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA100999  Drymocallis glandulosa var. wrangelliana G. Oberlander 1950-4-2 559 San Mateo Near San Andreas Lake, San Francisco Watershed Reserve Comment
  UC903041  Drymocallis glandulosa var. wrangelliana Ethel Crum 1934-4-29 1695 San Mateo one mi w Pescadero (near Pebble Beach); w of Pescadero, near Pebble Beach 30 Comment
  CAS-BOT-BC67880  Dryopteris arguta John H. Thomas 1973-6-15 16840 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  CAS-BOT-BC67888  Dryopteris arguta Ira L. Wiggins 1928-4-14 2920 San Mateo Alpine Creek Road Comment
  POM193661  Dryopteris arguta L. R. Abrams 1901-12-29 2251 San Mateo Santa Cruz Mountains Comment
  POM281638  Dryopteris arguta Lyman Benson 1928-12-15 829 San Mateo Searsville Lake Dam 122 Comment
  CDA33784  Dudleya farinosa D. G. Kelch 2011-3-13 11 .051-B San Mateo Pacifica. Along sea bluffs Comment
  UC830943  Dudleya farinosa Lewis S. Rose 1937-9-5 37646 San Mateo Mussel Rocks 60 Comment
  CAS-BOT-BC428363  Dudleya farinosa L. R. Abrams 1909-8-2 4273 San Mateo Santa Cruz Peninsula. Pebble Beach hotel, Pescadero Comment
  SJSU16065  Dysphania ambrosioides Toni Corelli 2009-9-9 438 San Mateo Half Moon Bay State Beach, in low dunes, Half Moon Bay Comment
  JROH5096  Echinochloa crus-galli John Hunter Thomas 1991-11-21 25099 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing of San Francisquito Creek, in pavement. Comment
  JROH5722  Echinochloa crus-galli John Rawlings 2015-9-22 1641 San Mateo Jasper Ridge Biological Preserve, Stanford University. In mud of Corte Madera Creek delta near open water 104 Comment
  CDA5626  Echium pininana T. C. Fuller 1967-6-13 15943 San Mateo North side of road to Crystal Springs, 1.2 miles east of Highway 1 at Half Moon Bay. 0 Comment
  CDA5628  Echium pininana Gordon Leppig 2000-5-24 1384 San Mateo Highway 1 between Montara and Linda Mar. 0 Comment
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Sep 13 2011
  SEINET3910868  Eleocharis montevidensis Lewis S. Rose 1950-5-20 50146 San Mateo Emerald Lake region hills w. of Redwood City.; 0 244 Comment
  UC50673  Elymus californicus Kellogg and Brennon San Mateo San Gregorio's Redwoods Comment
  UCD37959  Elymus glaucus Beecher Crampton 1962-6-11 6497 San Mateo San Mateo County, northern city limits of Pacifica, along State Highway 1, just southwest of its junction with Skyline Boulevard. Comment
  JROH5103  Elymus glaucus subsp. glaucus John H. Thomas 1971-5-30 15979 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC203682  Elymus glaucus subsp. glaucus W. R. Dudley 1895-6-7 s.n. San Mateo Santa Cruz Mountain Peninsula. On ridge by trail to Big Basin Comment
  JROH5119  Elymus multisetus D. E. Breedlove 1971-5-31 19370 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH5125  Elymus multisetus John Hunter Thomas 1977-6-7 18731 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5133  Elymus multisetus W. Lennihan 1989-5-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Fire road F at top of Ridge. Comment
  LA14855  Elymus multisetus David D. Keck; 1932-5-6 1469 San Mateo Belmont Comment
  RSA101004  Elymus multisetus G. Oberlander 1950-7-15 1015 San Mateo north of San Andreas Lake, San Francisco Watershed Reserve Comment
  RSA582099  Elymus multisetus D. D. Keck 1932-5-6 1469 San Mateo Belmont Comment
  RSA6312  Elymus multisetus D. D. Keck 1932-5-6 1469 San Mateo Belmont Comment
  SJSU15415  Elymus pacificus Toni Corelli 2010-5-14 629 San Mateo Pescadero State Beach and Marsh Natural Preserve, west of Hwy. 1 5 Comment
  POM87686  Elymus trachycaulus subsp. trachycaulus Le Roy Abrams 1902-5-11 2452 San Mateo Crystal Springs. Comment
  RSA184862  Epilobium canum subsp. canum L. S. Rose 1965-9-4 65099 San Mateo Skyline Blvd and half Moon Bay Road, Cahill Ridge 244 Comment
  RSA175071  Epilobium ciliatum subsp. watsonii Robert F. Thorne, Percy C. Everett 1963-6-9 32211 San Mateo On top of San Bruno Mountain, near TV tower. 335 Comment
  POM32709  Epilobium minutum C. F. Baker 1902-5-4 749 San Mateo Woodside. Comment
  JROH3074  Epilobium torreyi John H. Thomas 1967-5-31 12923 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR253354  Equisetum A. C. Sanders 2014-8-3 41236 San Mateo San Francisco Bay, South San Francisco, San Francisco Bay Trail in vicinity of S Airport Drive, Utah Ave., and Haskins Way, between Hwy 101 and San Francisco Bay 6 Comment
  JEPS79605  Equisetum arvense Edward Lee and Ann Johnson 1974-8-24 San Mateo near Pillar Point (Princeton Marsh) Comment
  CAS-BOT-BC57030  Equisetum arvense Phillip C. Wheeler 1965-5-23 s.n. San Mateo N. W. Radio Road Comment
  UCD164092  Equisetum arvense Peter Rubtzoff 1978-4-2 9153 San Mateo San Bruno Mountains.'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC57601  Equisetum telmateia Ira L. Wiggins 1931-3-15 5103 San Mateo between Skyline Boulevard and La Honda Comment
  JROH67  Equisetum telmateia subsp. braunii Lawrence J. Winship 1974-11-2 4 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH66  Equisetum telmateia subsp. braunii John H. Thomas 1974-5-3 17245 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek. Below dam. Comment
  JROH69  Equisetum telmateia subsp. braunii John H. Thomas 1976-4-2 18072 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek below dam Comment
  JROH5144  Eragrostis pectinacea var. pectinacea Ann Lambrecht 2005-8-24 20 San Mateo Jasper Ridge Biological Preserve, Stanford University. Sand Hill Road fence 5 or 6 m from Bear Creek crossing. 89 Comment
  JROH5147  Eragrostis pectinacea var. pectinacea John Rawlings 2012-7-27 1124 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the NE corner of the Caretaker's Residence by the garden fence and the blackberry bush. 106 Comment
  RSA0103881  Eriastrum abramsii L. S. Rose 1937-9-21 37659 San Mateo Emerald Lake. 183 Comment
  UCR126191  Erica canaliculata H. Schironi 1979-1-18 s.n. San Mateo Near Half Moon Bay Comment
  SD40117  Ericameria ericoides subsp. ericoides Edith A. Purer 1933-7-27 5375 San Mateo Two miles south of Pigeon Point. Comment
  POM359360  Ericameria ericoides var. ericoides D. D. Keck 1931-10-5 1286 San Mateo 1 mile north of Salada Beach, 200 meters from the ocean. Comment
  JROH690  Erigeron foliosus var. foliosus John H. Thomas 1971-5-30 15968 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC295079  Erigeron glaucus R. Stinchfield 1916-3-10 481 San Mateo Santa Cruz Mountain Peninsula. Farralone City Comment
  CAS-BOT-BC295081  Erigeron glaucus W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Montara Mountains Comment
  CAS-BOT-BC295084  Erigeron glaucus David D. Keck 1931-10-5 1290 San Mateo One km. north of Salada Beach Comment
  CAS-BOT-BC295088  Erigeron glaucus Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain. East facing slope below parking lot Comment
  SD234039  Erigeron glaucus Virginia Pinkus Ryder 1964-2-21 77 San Mateo 1 mile past Greyound Rock. 29 Comment
  JROH693  Erigeron karvinskianus Ann Lambrecht 2009-4-6 40 San Mateo Jasper Ridge Biological Preserve, Stanford University; rock outcrop on south side of San Francisquito Creek below Trail 2 Comment
  JROH5627  Erigeron sumatrensis Ann Lambrecht 2006-11-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Behind outbuildings near caretaker's residence (Sector 29 D3) Comment
  CAS-BOT-BC216130  Eriodictyon californicum Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo Buckeye Canyon, San Bruno Mountain Comment
  CAS-BOT-BC250546  Eriogonum gracile L. S. Rose 1931-5-15 s.n. San Mateo Emerald Lake in hills near Redwood City Comment
  CAS-BOT-BC251979  Eriogonum latifolium John H. Thomas 1964-4-30 10352 San Mateo San Bruno Mountain in northern part of county 914 Comment
  CAS-BOT-BC251984  Eriogonum latifolium John H. Thomas 1963-5-20 10126 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC251996  Eriogonum latifolium A. D. E. Elmer 1903-7-1 4557 San Mateo Half Moon Bay Comment
  SJSU15814  Eriogonum latifolium John Rawlings, Toni Corelli 2016-5-13 1897 San Mateo Bean Hollow State Beach south bluff above beach 11 Comment
  UC77427  Eriogonum latifolium C. F. Baker 1903-6-30 3359 San Mateo Pilarcitos Comment
  CAS-BOT-BC251981  Eriogonum latifolium Elsie M. Zeile 1921-7-30 s.n. San Mateo Salada Beach (slopes nr. road) Comment
  SEINET11938062  Eriogonum latifolium M. T. Doutt 1931-1 602 San Mateo near Portola, along ocean Comment
  UCSC007632  Eriogonum latifolium Randall Morgan 2004-7-23 4254 San Mateo Rockaway Beach Comment
  CAS-BOT-BC266073  Eriogonum luteolum A. D. E. Elmer 1903-6-1 4309 San Mateo Belmont Comment
  POM165062  Eriogonum luteolum A. D. E. Elmer 1903-06 4309 San Mateo Belmont Comment
  JROH3235  Eriogonum luteolum var. luteolum John Hunter Thomas 1982-10-16 21180 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC306654  Eriogonum luteolum var. luteolum A. D. E. Elmer June, 1903 4309 San Mateo Belmont Comment
  JEPS128396  Eriogonum nudum var. auriculatum Adam C. Schneider 2013-5-17 142 San Mateo Crystal Springs Reservoir. Comment
  JROH3240  Eriogonum nudum var. auriculatum J. H. Thomas 1962-11-4 10013 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Westridge end. Comment
  CAS-BOT-BC304068  Eriophyllum confertiflorum Evelina Cannon No date on label s.n. San Mateo Crystal Springs Comment
  CAS-BOT-BC304075  Eriophyllum confertiflorum Fred Hemphill 1973-5-14 828 San Mateo San Carlos. N of Malabar Rd and Melendry Dr 207 Comment
  CAS-BOT-BC304080  Eriophyllum confertiflorum H. A. Dutton 1900-3-25 s.n. San Mateo Woodside, Santa Cruz Peninsula Comment
  POM288449  Eriophyllum confertiflorum Lyman Benson 1937-6-24 8389 San Mateo Caol Mine Ridge, Stanford University, Santa Cruz Mt. Range, S. F. Bay Watershed 366 Comment
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Oct 24 2014
  JROH715  Eriophyllum confertiflorum var. confertiflorum John Hunter Thomas 1988-6-2 24508 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH716  Eriophyllum confertiflorum var. confertiflorum John Hunter Thomas 1989-5-9 24717 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC301258  Eriophyllum lanatum var. arachnoideum W. R. Dudley 1893-5-27 s.n. San Mateo Santa Cruz Mountain Peninsula. Near La Honda Comment
  CAS-BOT-BC301263  Eriophyllum lanatum var. arachnoideum Josephine D. Randall 1907-6-29 68 San Mateo Santa Cruz Peninsula. Kings Mt. Road Comment
  CAS-BOT-BC301752  Eriophyllum latilobum S. Carlquist 1952-4-26 305 San Mateo On N. side of road to Half Moon Bay, 1 mi. e. of San Mateo Comment
  UC1377806  Eriophyllum latilobum W. J. Dress 1951-5-30 3274 San Mateo roadside bank in canyon sw of San Mateo Comment
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Mar 6 2006
  UC1118210  Eriophyllum staechadifolium T. Tyrrell 1928-9-26 7 San Mateo 2 mi s San Gregorio; Santa Cruz Quad. 182 Comment
  UCR121572  Eriophyllum staechadifolium George K. Helmkamp, E. A. Helmkamp 1999-6-28 5004 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  CAS-BOT-BC301967  Eriophyllum staechadifolium W. R. Dudley 1895-2-10 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Pomponio Creek Comment
  SEINET11850780  Eriophyllum staechadifolium var. artemisiaefolium E. A. Purer 1933-1 5395 San Mateo 2 mi S of Pigeon Point Comment
  SEINET11850785  Eriophyllum staechadifolium var. artemisiaefolium E. H. Graham 1931-1 6930 San Mateo Ano Nuevo Pt., S of San Francisco Comment
  JROH2606  Erodium cicutarium John H. Thomas 1977-5-14 18612 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU16023  Eryngium armatum John Rawlings, Toni Corelli 2016-5-13 1792 San Mateo Vallemar Bluff, Moss Beach. USGS Montara Mountain OE W 7.5 Minute (1:24,000 Scale) Topographic Map. 11 Comment
  CAS-BOT-BC54818  Erysimum franciscanum H. E. Parks; S. T. Parks 1930-3-10 0401 San Mateo Spring Valley Lakes. Comment
  CAS-BOT-BC54824  Erysimum franciscanum A. D. E. Elmer 1903-5-1 4480 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC54836  Erysimum franciscanum G. B. Rossbach 1955-3-26 573 San Mateo Inner dunes back of sea bluff ca. 1 mile north of Sharp Park (Salada). Comment
  CAS-BOT-BC54842  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1938-4-3 806 San Mateo Crests and steep upper slopes of the San Bruno Hills. 365 Comment
  CAS-BOT-BC54843  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1938-4-3 806 San Mateo Crests and steep upper slopes of the San Bruno Hills. 365 Comment
  CAS-BOT-BC54864  Erysimum franciscanum G. B. Rossbach 1940-4-23 925 San Mateo About 1 mile inland, Montara Mountains, south of San Pedro Valley and northwest of Peak Mountain. 121 Comment
  CAS-BOT-BC54877  Erysimum franciscanum Peter H. Raven 1950-2-25 1374 San Mateo San Bruno Mountains. Between Brisbane and N.B.C. Television Station. 243 Comment
  JEPS90155  Erysimum franciscanum Dean W. Taylor 1994-5-10 14277 San Mateo along Crystal Springs Road 0.3 mi e of junction of Tartan Trail (Santa Cruz Mountains, San Mateo Creek drainage); Santa Cruz Mountains, San Mateo Creek drainage 67 Comment
  JEPS90156  Erysimum franciscanum Dean W. Taylor 1988-4-8 9513 San Mateo n slope of se ridge of San Bruno Mountain ((near the ridgecrest), Right-of-way of eastern-most set of PG&E high-voltage powerlines crossing the mountain, Santa Cruz Mountains); Santa Cruz Mountains, San Bruno Mountain 237 Comment
  RSA101842A  Erysimum franciscanum G. B. Rossbach 1939-4-2 908 -a San Mateo Just above and west of South end of San andreas Lake 213 Comment
  RSA102113  Erysimum franciscanum G. B. Rossbach 567 San Mateo Lower W slope Pulgas Ridge above E shore Crystal Springs Lake Comment
  UC1034705  Erysimum franciscanum G. B. Rossbach 1955-3-26 576 San Mateo upper n slope n radio tower; San Bruno Mt. Comment
  UC136023  Erysimum franciscanum C. F. Baker 1902-3-22 342 San Mateo Crystal Springs Lake Comment
  RSA15249  Erysimum franciscanum C. B. Wolf 1927-2-19 s.n. San Mateo 1 mile from where Skyline Blvd. crosses the road to Halfmoon Bay Comment
  CAS-BOT-BC403537  Eschscholzia californica A. D. E. Elmer 1903-6-1 4680 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC403560  Eschscholzia californica Walter Knight; Irja Knight 1964-4-25 632 San Mateo San Bruno Mountain. Power Line Ridge Comment
  JROH5930  Eschscholzia californica L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Close to the Siersville Lab on the west side of the lake Comment
  RSA100720  Euonymus occidentalis A. D. E. Elmer 1903-1 4317 San Mateo Butano Creek Comment
  RSA116735  Euonymus occidentalis W. R. Dudley 1910-5-26 s.n. San Mateo Los Trancos Creek, above Judge Allen's; Santa Cruz Mountain Peninsula. Comment
  JROH1967  Euphorbia oblongata John Rawlings 2012-10-15 1118 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek bed near Dennis Martin site 71 Comment
  UCR123136  Euphorbia oblongata Don Pendleton 2002-4-26 s.n. San Mateo San Francisco Bay Region, Woodside, Sandhill Road, 0.25 mi north of Portola Road, west of Hwy 280 152 Comment
  JROH1968  Euphorbia oblongata Ann Lambrecht 2012-12-11 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; beside footbridge on Trail 12 Comment
  CAS-BOT-BC166767  Euphorbia peplus Peter Rubtzoff 1977-4-14 8942 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JROH1979  Euphorbia spathulata John Hunter Thomas 1981-4-23 20471 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5681  Euphorbia spathulata John Rawlings 2015-3-15 1355 San Mateo Jasper Ridge Biological Preserve, Stanford University. Ridge-top serpentine prairie 188 Comment
  JROH531  Eurybia radulina John Rawlings 2011-10-18 1089 San Mateo Jasper Ridge Biological Preserve, Stanford University. SW end of Road C bridge over San Francisquito Creek. 88 Comment
  CAS-BOT-BC310615  Eurybia radulina W. R. Dudley 1894-12-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Above Preston's - La Honda Road Comment
  RSA176410  Euthamia occidentalis John H. Thomas 1964-10-2 10511 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Edge of Searsville Lake near Bridge. Comment
  SJSU15416  Festuca arundinacea Toni Corelli 2010-5-21 672 San Mateo Pescadero State Beach and Marsh Natural Preserve. North Pond Trail 5 Comment
  JROH5727  Festuca bromoides John Rawlings 2015-3-8 1307 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 8 though chaparral. 134 Comment
  CAS-BOT-BC278360  Festuca californica subsp. californica Catherine A. Toschi 1963-3-17 63 :50 San Mateo San Bruno Mountain. Northeast slope below radio station Comment
  CAS-BOT-BC539285  Festuca idahoensis John Rawlings; Ken Hickman 2015-6-8 1577 San Mateo Caltrans right-of-way above Hwy 92 E of Hwy 280, downslope from San Francisco Watershed fenceline 118 Comment
  JROH5484  Festuca microstachys John H. Thomas 1967-5-12 12878 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5490  Festuca microstachys Stephen N. Turitzin 1975-5-7 4 San Mateo Jasper Ridge Biological Preserve, Stanford University 190 Comment
  JROH5503  Festuca myuros Stephen N. Turitzin 1976-5-7 8 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5281  Festuca perennis John H. Thomas 1967-6-1 12956 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI21962  Festuca perennis Lewis S. Rose 1956-7-2 56116 San Mateo Skyline Blvd, Hills W of San Mateo 183 Comment
  POM140686  Fragaria californica C. F. Baker 1902-1-15 233 San Mateo Kings Mountain. West side of King's Mountain. Comment
  RSA95475  Fragaria californica L. S. Rose 1954-5-17 54044 San Mateo Kings Mtn. 610 Comment
  JEPS44879  Fragaria chiloensis W. L. Jepson 1921-4-3 9115 San Mateo canyon near Colma Comment
  POM275018  Fragaria chiloensis Lyman D. Benson 1931-3-3 2622 San Mateo Moss Beach. 15 Comment
  RSA499458  Fragaria chiloensis E. A. Purer 1933-7-27 5386 San Mateo Two miles south of Pigeon Point. Comment
  SD37687  Fragaria chiloensis Edith A. Purer 1933-5-14 3605 San Mateo Pescadero Comment
  UC203052  Fragaria chiloensis A. D. E. Elmer Apr 1903 4799 San Mateo San Pedro Comment
  JEPS44882  Fragaria vesca W. L. Jepson 9545 San Mateo Lake San Andreas 182 Comment
  HSC23974  Fragaria vesca Mary Katherine Wicksten 1971-7-8 160 San Mateo Huddart Park, Madrone Area Comment
  JROH3672  Fragaria vesca John Hunter Thomas 1990-4-26 24812 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near redwood grove near Rattlesnake Rock Comment
  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
  JROH3537  Frangula californica subsp. californica John H. Thomas 1968-5-22 14459 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3543  Frangula californica subsp. californica John H. Thomas 1974-9-19 17601 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC53601  Frangula californica subsp. tomentella O. Boring 1897-8-25 s.n. San Mateo Near Kings Mt. House Comment
  RSA391412  Frankenia salina L. S. Rose 1938-8-18 38230 San Mateo Brisbane 2 Comment
  RSA391414  Frankenia salina D. D. Keck 1931-9-27 1269 San Mateo Dumbarton Bridge. Comment
  CAS-BOT-BC212964  Fremontodendron californicum W. R. Dudley 1897-12-29 s.n. San Mateo Butano Creek, Santa Cruz Peninsula Comment
  CAS-BOT-BC130127  Fritillaria affinis Javier Penalosa 1963-3-9 2702 San Mateo Ravine 1/2 mi. east of 1314 ft. summit 304 Comment
  CAS-BOT-BC130137  Fritillaria affinis Ira L. Wiggins 1928-4-14 2915 San Mateo Alpine Creek Road Comment
  CAS-BOT-BC130139  Fritillaria affinis J. H. Thomas 1949-4-14 268 San Mateo [King's] Kings Mt. Road Comment
  JROH4685  Fritillaria affinis John H. Thomas 1977-4-29 18573 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM169607  Fritillaria affinis C. F. Baker 1903-03 5047 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC130115  Fritillaria affinis W. R. Dudley 1900-3-16 s.n. San Mateo By Redwood stage road below Woodside Comment
  CAS-BOT-BC130129  Fritillaria affinis Elizabeth McClintock 1969-3-9 s.n. San Mateo Above Harold Ave., Brisbane Comment
  RSA196570  Fritillaria affinis W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula; ravine above Pillar Point and below Montara Mountains Comment
  SJSU14166  Fritillaria biflora H. R. Himes 1989-3-17 San Mateo S end of Buri Buri Ridge on W side of Hwy 280 Comment
  RSA0000351  Fritillaria grayana Inez Smith 1914-3-12 s.n. San Mateo Hillsboro. Comment
  SEINET3886766  Fritillaria lanceolata Lois R. O'Brien 1963-3-9 85 San Mateo San Bruno Mountains, on Radio Road 3 miles from Estrada Way.; 0 213 Comment
  LA22137  Fritillaria liliacea H. E. Parks; S. T. Parks 1930-3-10 400 San Mateo Spring Valley Lakes 152 Comment
  SEINET179619  Fritillaria liliacea H. E. Parks, S. T. Parks 1930-3-10 0400 San Mateo Spring Valley Lakes. 152 Comment
  SJSU115  Fritillaria liliacea Thelma Silva 1931-3-8 San Mateo Spring Valley, head of Pilarcitos Creek Comment
  RSA0031337  Fumaria Peter Rubtzoff, B. Anderson 1988-4-12 9900 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; NW part of the area, near the old Guadalupe Road between Bog Trail and Saddle Trail Junctions. Comment
  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-BC389733  Galium J. Lovelle 1973-8-5 37 San Mateo Mt. Ellen Trail Comment
  CDA28822  Galium aparine D. G. Kelch 2009-6-9 9 .401 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
  JEPS127813  Galium aparine Adam C. Schneider with C. Matt Guilliams 2013-4-7 77 San Mateo Comment
  POM59550  Galium aparine A. D. E. Elmer 1903-05 4424 San Mateo San Mateo Comment
  JROH3789  Galium murale John H. Thomas 1963-4-13 10032 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville end of lake near the riders shack. Comment
  RSA195643  Galium nuttallii John H. Thomas 1950-3-19 1301 San Mateo Near intersection of Coast Hwy and road to Swanton, 1 mile SE of mouth of Waddell Creek. 30 Comment
Read comments
Aug 8 2020
  JROH3812  Galium porrigens var. porrigens John Hunter Thomas 1981-5-25 20619 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3814  Galium porrigens var. porrigens John Hunter Thomas 1983-4-28 21782 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC303467  Gamochaeta ustulata John Thomas Howell 1926-4-24 1921 San Mateo Daly City Comment
  JROH806  Gamochaeta ustulata John Hunter Thomas 1992-5-5 25208 San Mateo Jasper Ridge Biological Preserve, Stanford University; near picnic area and vicinity Comment
  CAS-BOT-BC194567  Garrya elliptica W. R. Dudley 1895-2-10 s.n. San Mateo San Mateo Ravine by Road above Pt. of Rocks Comment
  JROH2541  Garrya elliptica E. A. McGregor 1907-2-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University 243 Comment
  RSA181583  Garrya elliptica E. A. McGregor 1907-2-10 s.n. San Mateo Jasper Ridge. 244 Comment
  JROH5199  Gastridium phleoides John Hunter Thomas 1992-5-25 25348 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5651  Gastridium phleoides John Rawlings 2014-5-23 1226 San Mateo Jasper Ridge Biological Preserve, Stanford University; just up-slope from the Boat Launch (aka Searsville Lab Landing) 104 Comment
  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
  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
  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
  UCSB11484  Genista monspessulana Olson, Jim 1962-4-15 San Mateo 1 mile south of La Honda on Skyline Boulevard 670 Comment
  JROH2610  Geranium dissectum John H. Thomas 1966-4-24 11577 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2621  Geranium dissectum John Hunter Thomas 1992-5-14 25225 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat ramp. Comment
  JROH3156  Gilia achilleifolia subsp. multicaulis John H. Thomas 1977-4-19 18533 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA20368  Gilia angelensis C. B. Wolf 1938-4-24 9401 San Mateo 1/4 mile SW of the San Francisquito Creek bridge back of Stanford University. 61 Comment
  JROH3166  Gilia clivorum John Hunter Thomas 1981-4-27 20506 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC303686  Glebionis coronaria Walter & Irja Knight 1965-4-24 1083 San Mateo San Bruno Mt. Pig Ranch Ravine 45 Comment
  SD40453  Glebionis segetum Edith A. Purer 1933-5-31 3658 San Mateo Moss Beach Comment
  RSA18352  Gnaphalium chilense C. B. Wolf 1927-1-29 465 San Mateo Pescadero Comment
  UCR254759  Gnaphalium chilense Peter Rubtzoff 1975-11-8 8438 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  RSA130389  Gnaphalium palustre W. R. Dudley 1909-10-31 s.n. San Mateo Searsville Lake. The Santa Cruz Mtn Peninsula. Comment
  UCR122973  Gnaphalium stramineum George K. Helmkamp, E. A. Helmkamp 2001-6-2 6775 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-BC304517  Grindelia hirsutula L. R. Abrams 1909-8-2 4249 San Mateo Santa Cruz Peninsula. Pebble Beach. Pescadero Comment
  CAS-BOT-BC304525  Grindelia hirsutula Alice Eastwood 1912-6-2 216 San Mateo Granada Comment
  CAS-BOT-BC304535  Grindelia hirsutula George Oberlander 1950-7-15 1099 San Mateo San Francisco Watershed Reserve. Northern Cahill Ridge Comment
  CAS-BOT-BC304553  Grindelia hirsutula A. D. E. Elmer 1903-6-1 4267 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC304561  Grindelia hirsutula Lewis S. Rose 1933-6-9 33221 San Mateo San Andreas Lake Comment
  CAS-BOT-BC304564  Grindelia hirsutula H. L. Mason 1921-7-3 s.n. San Mateo Pescadero - La Honda Road Comment
  POM288780  Grindelia hirsutula Lyman Benson 1934-7-4 6101 San Mateo Moss Beach; Pacific Ocean watershed 15 Comment
  SJSU1660  Grindelia hirsutula R. E. Bousquet 1955-5-14 40 San Mateo E side Crystal Springs Reseroir Comment
  UC32136  Grindelia hirsutula J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Pilarcitos Canyon; Pilarcitos Lake, Pilarcitos Canyon Comment
  JROH826  Grindelia hirsutula John Hunter Thomas 1987-5-26 24316 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5709439 Image available Grindelia stricta Lowell E. Urbatsch 1972-1 1095 San Mateo Low area near coast along Hwy 1. Comment
  SD30785  Grindelia stricta var. angustifolia Edith A. Purer 1933-8-26 5525 San Mateo Along highway, at edge of ditch near salt water Comment
  SJSU15765  Grindelia stricta var. angustifolia Toni Corelli 2011-8-31 721 a San Mateo Pescadero State Beach and Marsh Natural Preserve. Along Butano Trail on levy along Butano Creek. 3 Comment
  SJSU15766  Grindelia stricta var. angustifolia Toni Corelli 2011-8-31 721 b San Mateo Pescadero State Beach and Marsh Natural Preserve. Along Butano Trail on levy along Butano Creek. 3 Comment
  RSA0110999  Grindelia stricta var. angustifolia E. A. Purer 1933-8-26 5525 San Mateo Along highway. [No further location information.] Comment
  SEINET11835893  Grindelia stricta var. angustifolia E. A. Purer 1933-1 5525 San Mateo no further locality Comment
  CDA6158  Grindelia stricta var. platyphylla T. C. Fuller 1960-6-24 5020 San Mateo Highway 1, 7 miles north of Princeton. 0 Comment
  POM273889A  Guillenia lasiophylla Lyman Benson 1931-3-15 2649 San Mateo Emerald Lake; Redwood City; Mt. Range: Santa Cruz; Watershed: San Francisco Bay 152 Comment
  JROH440  Hedera helix John H. Thomas 1967-6-1 12974 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH834  Helenium puberulum Richard L. Garber 1971-7-13 75 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1598595  Helenium puberulum A. D. E. Elmer Jul 1903 4968 San Mateo San Mateo Comment
  CAS-BOT-BC309540  Helenium puberulum Lewis S. Rose 1941-9-13 41439 San Mateo San Mateo Canyon 30 Comment
  RSA70702  Helenium puberulum L. S. Rose 1949-8-10 49157 San Mateo Skyline Blvd, W of Tanforan 122 Comment
  UCD132749  Helenium puberulum W. A. Harvey; J. M. Tucker 1948-6-28 1701 San Mateo on ridge around 3 miles north of Pescadero. Comment
  CAS-BOT-BC224057  Helianthemum scoparium George Oberlander 1949-6-25 225 San Mateo San Francisco Watershed Reserve Comment
  JROH1833  Helianthemum scoparium John H. Thomas 1961-6-14 9537 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC305630  Helianthus californicus L. R. Abrams 1902-9-21 2989 San Mateo Woodside - Crystal Springs 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
  CAS-BOT-BC453466  Hemitomes congestum R. S. Ferris 1923-5-26 3787 San Mateo Chris Iverson Trail, Butano Ridge Comment
  UCR80233  Hemizonia congesta L. S. Rose 1964-9-5 64070 San Mateo San Francisco Bay Region, Emerald Lake, west of Redwood City 244 Comment
  CAS-BOT-BC314936  Hemizonia congesta subsp. luzulifolia C. F. Baker 1903-6-30 3350 San Mateo Crystal Springs Comment
  JROH865  Hemizonia congesta subsp. luzulifolia John H. Thomas 1967-11-5 14129 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH868  Hemizonia congesta subsp. luzulifolia John H. Thomas 1974-10-26 17635 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH875  Hemizonia congesta subsp. luzulifolia John Hunter Thomas 1991-8-4 25078 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC398631  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1914-7-15 5140 San Mateo Crystal Springs Comment
  UC614964  Hemizonia congesta subsp. luzulifolia Beryl O. Schreiber 1932-5-29 308 San Mateo Crystal Springs Comment
  CAS-BOT-BC314926  Hemizonia congesta subsp. luzulifolia W. R. Dudley 1894-4-21 s.n. San Mateo Crystal Springs Comment
  CAS-BOT-BC314951  Hemizonia congesta subsp. luzulifolia Alice Eastwood 1919-9-1 s.n. San Mateo San Mateo Comment
  UC1584834  Hemizonia congesta subsp. luzulifolia Jerry Powell 1990-5-11 1580 San Mateo at junction of Hwy 280 and Hwy 92 Comment
  POM216539  Hemizonia corymbosa subsp. corymbosa D. D. Keck 1931-10-5 1295 San Mateo Skyline Blvd, 1.5 miles S of Half Moon Bay road, summit of Cahil Ridge. 450 Comment
  POM53591  Hemizonia luzulifolia C. F. Baker 1903-6-30 3350 San Mateo Crystal Springs Comment
  RSA124753  Hemizonia luzulifolia subsp. rudis John H. Thomas 1958-11-22 7507 San Mateo Jasper Ridge, 5 miles SW of Palo Alto. 152 Comment
  UC1084378  Heracleum lanatum G. Thomas Robbins 1937-4-11 75 San Mateo along Skyline Blvd. s. of San Francisco Comment
  SEINET5554255  Heracleum lanatum H. S. Gentry 1931-1 81 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  JROH251  Heracleum maximum John H. Thomas 1977-4-29 18577 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176771  Heracleum maximum John H. Thomas 1961-5-5 9210 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  UCSB17224  Hesperevax sparsiflora Schulte, John 1963-4-14 San Mateo Top of Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  JROH895  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1984-4-2 23273 3 A San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge fence Comment
  JROH898  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1987-5-5 24253 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC176208  Hesperolinon congestum A. D. E. Elmer 1903-5-1 4422 San Mateo Crystal Springs Lake Comment
  SJSU12753  Hesperolinon congestum S. C. Sommers 1986-5-8 San Mateo W side Edgewood County Park near junction of Hwy 280 & Edgewood Rd, Redwood City Comment
  JROH2936  Hesperolinon micranthum John Hunter Thomas 1983-6-29 22713 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2921  Hesperolinon micranthum Herbert L. Mason 1921-5-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; top of Jasper Ridge Comment
  CAS-BOT-BC422603  Hesperomecon linearis A. D. E. Elmer 1903-6-1 4594 San Mateo San Bruno Hills Comment
  CAS-BOT-BC148467  Heteromeles arbutifolia George Oberlander 1949-7-10 281 San Mateo Sweeney Ridge - San Francisco Watershed Reserve Comment
  CAS-BOT-BC148469  Heteromeles arbutifolia Walter Knight; Irja Knight 1965-4-11 1001 San Mateo Guadalupe Road - San Bruno Mountain Comment
  CAS-BOT-BC148470  Heteromeles arbutifolia Walter Knight; Irja Knight 1963-6-24 s.n. San Mateo Quarry 4 - San Bruno Mountain Comment
  JROH3677  Heteromeles arbutifolia John H. Thomas 1965-12-19 11459 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3678  Heteromeles arbutifolia John H. Thomas 1973-6-10 16814 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD49795  Heteromeles arbutifolia John H. Thomas 1958-11-22 7504 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. North central portion of ridge. 152 Comment
  UC942934  Heteromeles arbutifolia Lewis S. Rose 1948-11-25 48241 San Mateo Woodside 365 Comment
  JROH908  Heterotheca sessiliflora subsp. echioides Carol Zabel 1989-8-27 34 San Mateo Jasper Ridge Biological Preserve, Stanford University; lowest trail next to lake, downhill, east of Sun Field Station Comment
  HSC24041  Heuchera micrantha Mary Katherine Wicksten 1971-6-30 143 San Mateo Huddart Park, by W Union Creek, near Meadow Area Comment
  CAS-BOT-BC420897  Heuchera micrantha var. erubescens L. S. Rose 1941-7-2 1146 San Mateo Kings Mountain 600 Comment
  CAS-BOT-BC420899  Heuchera micrantha var. erubescens D. E. Breedlove 1973-9-26 35563 San Mateo Pescadero Creek County Park 365 Comment
  RSA0063101  Heuchera micrantha var. hartwegii L. S. Rose 1941-7-2 41289 San Mateo Kings Mountain. 600 Comment
  CAS-BOT-BC319636  Hieracium albiflorum Josephine D. Randall 1907-6-29 82 San Mateo Portola Valley, Santa Cruz Peninsula Comment
  CAS-BOT-BC55444  Hirschfeldia incana George Oberlander 1949-7-24 290 San Mateo San Francisco Watershed. Grassland about San Andreas Lake. Comment
  CAS-BOT-BC55435  Hirschfeldia incana Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountains. Lower part of Colma Canyon. Comment
  CAS-BOT-BC289252  Holcus lanatus Walter Knight; Irja Knight; Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo Lower Part of Colma Canyon, San Bruno Mountain Comment
  CAS-BOT-BC289253  Holcus lanatus Philip Wheeler 1965-6-8 s.n. San Mateo Crocker Industrial Park, San Bruno Mountain Comment
  UC38606  Holcus lanatus Michener and Bioletti 1893-6-15 120 San Mateo Baden Comment
  SEINET10591390  Holcus lanatus Delzie Demaree 1933-6-12 Demaree 10374 San Mateo Bader Station. S. San Francisco. Small bottom. Comment
  CAS-BOT-BC389678  Holodiscus discolor Mary Wicksten 1968-7-19 s.n. San Mateo Creek trail near Sequoia Flat Road - Memorial Park 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
  CAS-BOT-BC150056  Holodiscus discolor var. discolor A. D. E. Elmer 1903-6-1 4274 San Mateo San Mateo Comment
  JROH3689  Holodiscus discolor var. discolor John H. Thomas 1971-5-30 15982 San Mateo Jasper Ridge Biological Preserve, Stanford University. Woods near dam Comment
  CAS-BOT-BC150065  Holodiscus discolor var. discolor Walter Knight 1964-9-14 839 San Mateo Ridge between Peak Mt. and highway 1 Comment
  JROH5222  Hordeum brachyantherum subsp. californicum John H. Thomas 1975-5-26 17916 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5227  Hordeum brachyantherum subsp. californicum John Hunter Thomas 1980-5-20 19983 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC285045  Hordeum depressum John Thomas Howell No date on label 28969 San Mateo Redwood City Comment
  CAS-BOT-BC285146  Hordeum marinum subsp. gussoneanum Elizabeth McClintock; Paul Reeberg 1989-4-10 s.n. San Mateo San Bruno Mountains. PG&E Marsh 7 Comment
  CAS-BOT-BC285152  Hordeum marinum subsp. gussoneanum W. R. Dudley 1902-4-1 s.n. San Mateo Unspecified Comment
  CAS-BOT-BC289462  Hordeum murinum subsp. leporinum Javier Penalosa 1963-3-30 2741 San Mateo North of Randolph Drive at Hillside Blvd. in SSF, San Bruno Mountain 289 Comment
  JROH5261  Hordeum murinum subsp. leporinum John Rawlings 2013-3-24 1125 San Mateo Jasper Ridge Biological Preserve, Stanford University; grassy verge of Rd C at Rd D intersection 158 Comment
  RSA181231  Hordeum murinum subsp. leporinum John H. Thomas 1963-5-20 10152 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC271357  Hordeum vulgare Mary Helen Kelson 1956-4-27 150 San Mateo One mile from beach at Pescadero Comment
  CAS-BOT-BC271359  Hordeum vulgare George Oberlander 1950-6-3 1041 San Mateo Upper Crystal Spr. Lake, San Francisco Watershed Reserve Comment
  CAS-BOT-BC536141  Horkelia californica W. R. Dudley 1897-10-11 s.n. San Mateo Near Half Moon Bay (Spanishtown) Comment
  CAS-BOT-BC536144  Horkelia californica Helen D. Geis 1901-10-25 s.n. San Mateo Spanishtown [Half Moon Bay] near cemetery Comment
  CAS-BOT-BC536148  Horkelia californica Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo Below parking lot, San Bruno Mountain Comment
  UCR19821  Horkelia cuneata C. S. Life 1923-1 s.n. San Mateo San Francisco 135 Comment
  UCR253352  Hydrocotyle moschata A. C. Sanders 2014-8-3 41241 San Mateo San Francisco Bay, South San Francisco, Utah Ave. near Harbor Way, north of S.F. Intl. Airport 4 Comment
  UCD164331  Hypericum anagalloides Peter Rubtzoff 1976-6-30 8704 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  CAS-BOT-BC400967  Hypericum anagalloides Philip Wheeler 1965-6-16 s.n. San Mateo San Bruno Mountains. In Colma Canyon Comment
  CDA19135  Hypericum canariense R. Pummer 2001-7-16 PDR 064513 San Mateo San Francisco Peninsula; W of Hwy 1, near Gazos Creek between Pigeon Pt. and Ano Nuevo. 0 Comment
  UCD160238  Hypericum canariense Christopher Dillis 2015-5-15 2 San Mateo South of Pescadero on Hwy 1 (Cabrillo Hwy), 400 m south of Highway Brewing Company, then east 120 m on unmarked 1-lane dirt road; 10 m southwest of intersection with Old Coast Highway. 200 Comment
  CAS-BOT-BC311389  Hypochaeris glabra Javier Penalosa 1963-3-30 2721 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF 91 Comment
  CAS-BOT-BC311480  Hypochaeris radicata 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
  JROH934  Hypochaeris radicata John Hunter Thomas 1981-10-25 20775 San Mateo Jasper Ridge Biological Preserve, Stanford University; on causeway Comment
  JROH942  Hypochaeris radicata John Hunter Thomas 1991-6-9 25067 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Main Gate off Sand Hill Road Comment
  POM55230  Hypochaeris radicata A. D. E. Elmer 1903-04 4861 San Mateo Lake San Andreas Comment
  SEINET7097928  Iris douglasiana 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
  CAS-BOT-BC133661  Iris longipetala George Oberlander 1950-4-2 587 San Mateo San Andreas Lake Comment
  CAS-BOT-BC133664  Iris longipetala Alice Eastwood 1914-3-12 3751 San Mateo San Bruno Hills Comment
  CAS-BOT-BC133675  Iris longipetala Lewis S. Rose 1964-4-12 64020 San Mateo South San Francisco, San Bruno Mt. 60 Comment
  SBBG32267  Iris longipetala L. S. Rose 1968-3-26 68009 San Mateo S base of San Bruno Mts, S San Francisco 30 Comment
  UCD138696  Iris longipetala Lewis S. Rose 1968-3-20 68009 San Mateo south base of San Bruno Mountains, south San Francisco. 30 Comment
  CAS-BOT-BC133652  Iris longipetala Elmer I. Applegate 1895-3-3 282 San Mateo Purissima Comment
  POM168969  Iris macrosiphon A. D. E. Elmer 1903-05 4503 San Mateo Portola Comment
  IRVC9079  Iris macrosiphon P. W. Rundel 1963-6-11 1116 San Mateo San Fransisco Bay drainage area; Old La Honda Road. Santa Cruz Mountain Range 305 Comment
  POM263469  Iris missouriensis R. C. Foster 1937-4-30 244 San Mateo Near the Skyline Boulevard, north of Kings Mountain Comment
  POM290948  Iris missouriensis Lyman Benson 1929-3-21 1021 San Mateo Wet places north of South San Francisco Comment
  SJSU16039  Isolepis carinata Toni Corelli, John Rawlings 2016-4-29 1764 San Mateo Cascade Field along Cascade Cr. Trail, Ano Nuevo State Park 21 Comment
  CAS-BOT-BC112616  Isolepis cernua J. Clausen 1939-7-1 1745 San Mateo Ano Nuevo Point, in depressions in stabilized dunes. Comment
  SD37490  Isolepis cernua Edith A. Purer 1933-7-27 5380 San Mateo Moist places in sand dunes, two miles south of Pigeon Point. (IPB 11/07) Comment
  SJSU15910  Isolepis cernua John Rawlings, Sara Timby, Toni Corelli 2016-4-23 1735 San Mateo Bean Hollow bluff trail west of Hwy 1 south of Pescadero 8 Comment
  UC672619  Juglans californica var. hindsii Herbert L. Mason 1924-10-8 1107 San Mateo along creek at n end Jasper Ridge (2 1/2 mi w of Palo Alto); San Francisquito Creek Comment
Read comments
Sep 19 2011
  CAS-BOT-BC109970  Juncus Kellogg; Brannan 1870-6-1 s.n. San Mateo San Gregorio 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
  JROH4448  Juncus bolanderi Ann Lambrecht 2004-7-21 12 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Corte Madera Creek. Comment
  JROH5673  Juncus bufonius var. bufonius John Rawlings 2014-6-10 1275 San Mateo Jasper Ridge Biological Preserve, Stanford University; Corte Madera Creek delta near open water. 104 Comment
  JROH4470  Juncus bufonius var. occidentalis John Hunter Thomas 1983-5-23 22251 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Near shack side and low-flow crossing. Comment
  RSA18441  Juncus effusus subsp. pacificus Carl B. Wolf 1927-6-29 567 San Mateo 3 miles south of San Gregorio. Comment
  RSA786664  Juncus effusus var. pacificus Peter Rubtzoff, Roman Gankin 1975-9-11 8373 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  RSA101009  Juncus macrandrus G. Oberlander 1949-7-30 300 San Mateo San Andreas Lake, San Francisco Watershed Reserve. Comment
  UC1601846  Juncus patens J. Burtt Davy 1893-6-22 760 San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC210052  Juncus phaeocephalus Peter Rubtzoff 1978-7-8 9228 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UCD163589  Juncus phaeocephalus Peter Rubtzoff 1980-8-4 9561 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
  JROH4521  Juncus xiphioides Toni Corelli 2009-7-22 352 San Mateo Jasper Ridge Biological Preserve, Stanford University. South of Road B, Below Dennis Martin Marker site in San Francisquito Creek 71 Comment
  JROH4041  Kickxia spuria John H. Thomas 1964-10-2 10514 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam along stream Comment
  POM190453  Koeleria macrantha D. D. Keck 1932-5-6 1476 San Mateo Above Millbrae Highlands Comment
  CAS-BOT-BC273732  Koeleria pyramidata Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  CAS-BOT-BC273733  Koeleria pyramidata Walter Knight; Irja Knight 1964-4-25 s.n. San Mateo San Bruno Mountain. Near Nike base Comment
  CAS-BOT-BC340468  Lactuca saligna John Thomas Howell 1930-11-9 5711 San Mateo On the Skyline Boulevard in the hills above Millbrae Comment
  SJSU1797  Lactuca saligna C. W. Sharsmith 1956-10-22 6356 San Mateo San Mateo County Memorial Park, Pescadero Cr, Santa Cruz Mts Comment
  UCD133509  Lactuca virosa John Thomas Howell 1954-9-8 30108 San Mateo Skyline Blvd. at San Andreas Lake, 2 miles west of San Bruno. Comment
  CAS-BOT-BC341627  Lagophylla ramosissima Linda Fox 1969-6-20 1000 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  JROH965  Lagophylla ramosissima John Hunter Thomas 1983-6-29 22722 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH968  Lagophylla ramosissima John Hunter Thomas 1986-6-7 24084 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC341637  Lagophylla ramosissima J. I. McMurphy 1906-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula. Near head of Crystal Springs Lakes 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-BC339052  Lasthenia californica A. D. E. Elmer 1903-4-1 4738 San Mateo San Bruno Hills Comment
  CAS-BOT-BC339053  Lasthenia californica A. D. E. Elmer 1903-4-1 4507 San Mateo San Bruno Hills Comment
  CAS-BOT-BC339068  Lasthenia californica Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain. Area in Devil's Arroyo Comment
  RSA585988  Lasthenia californica Adree M. Desrochers 1988-4-21 306 San Mateo Near Palo Alto. Near Palo Alto. Jasper Ridge, Biological Preserve of Stanford University. Comment
  JEPS97024  Lasthenia californica subsp. californica John M. Tucker 1941-4-6 212 San Mateo meadow at roadside Pigeon Point Comment
  CAS-BOT-BC324424  Lasthenia californica subsp. macrantha H. L. Mason 1921-6-1 s.n. San Mateo Pebble Beach near Pescadero Comment
  JEPS23589  Lasthenia californica subsp. macrantha Adele Lewis Grant 1917-5-6 939 San Mateo Pebble Beach near Pescadero 3 Comment
  JEPS67909  Lasthenia glaberrima L. R. Heckard and J. H. Thomas 1972-4-16 2892 San Mateo ca 1.5 s Pulgas Water Temple (sw of Upper Crystal Springs Reservoir, along Old Canada road (private)) 121 Comment
  POM288365  Lasthenia gracilis Lyman Benson 1930-5-3 2097 San Mateo Above Woodside, Mt. Range: Santa Cruz 244 Comment
  UC30427  Lasthenia gracilis Ivar Tidestrom 1894-5-1 San Mateo Comment
  UCR121579  Lasthenia minor George K. Helmkamp, E. A. Helmkamp 1999-6-28 5013 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  UCSC003524  Lasthenia minor Randall Morgan 2001-5-9 3728 San Mateo Bean Hollow State Beach parking area, San Mateo County Comment
  SD39834  Lathyrus littoralis Edith A. Purer 1932-7-18 4007 San Mateo Half Moon Bay, sand dunes Comment
  JEPS22663  Lathyrus littoralis Irene Brown 1959-5-15 151 San Mateo w of Highway 1 (about 50 feet from Ocean, Sharp Park); Sharp Park 7 Comment
  POM223333  Lathyrus vestitus subsp. vestitus L. S. Rose 1935-5-29 35191 San Mateo Kings Mountain Comment
  UCD106521  Lathyrus vestitus var. alefeldii Collector unknown Date unknown s.n. San Mateo Daly City. Comment
  UC69549  Lathyrus vestitus var. vestitus J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  JEPS17917  Lavatera arborea Rimo Bacigalupi 1955-8-4 5450 San Mateo just n Montara Point lighthouse (at town of Montara); Montara Comment
  CAS-BOT-BC323182  Layia chrysanthemoides John Thomas Howell 1933-5-26 11343 San Mateo Crystal Springs Lake Comment
  UC935673  Layia chrysanthemoides David D. Keck 1932-4-29 1450 San Mateo Redwood City Comment
  UC828922  Layia gaillardioides Lewis S. Rose 1935-5-4 35149 San Mateo Burlingame Comment
  CAS-BOT-BC327467  Layia hieracioides John H. Thomas 1950-4-23 1646 San Mateo Ben Lomond Sand Hills, along Quail Hollow Road 152 Comment
  POM53350  Layia hieracioides C. F. Baker 1902-5-4 742 San Mateo Woodside. Comment
  CAS-BOT-BC327470  Layia hieracioides John H. Thomas 1967-5-7 12825 San Mateo Sunset Beach State Park, about 4.5 miles SW of Watsonville. Comment
  CAS-BOT-BC327526  Layia hieracioides C. G. Pringle 1882-7-11 s.n. San Mateo Aptos Comment
Read comments
Oct 28 2021
  POM298199  Layia hieracioides D. D. Keck 1933-5-11 2306 San Mateo Skyline Blvd, E of Salada, northern San Mateo County. Comment
  UCSC007762  Layia hieracioides Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CHSC68147  Layia platyglossa A. D. E. Elmer 1903-4-1 5022 San Mateo Crystal Springs Lake. Comment
  JROH995  Layia platyglossa John H. Thomas 1973-4-14 16565 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH998  Layia platyglossa John H. Thomas 1975-4-3 17703 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC382080  Layia platyglossa Le Roy Abrams 1901-5-5 1565 San Mateo Woodside Comment
  CAS-BOT-BC382218  Layia platyglossa David D. Keck 1932-5-6 1491 San Mateo East side of Crystal Springs Lake 60 Comment
  CAS-BOT-BC221525  Lepechinia calycina Daniel Cohen 1953-6-5 111 San Mateo Los Trancos Woods Comment
  CAS-BOT-BC221535  Lepechinia calycina Fred Hemphill 1973-4-8 661 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CDA34569  Lepechinia calycina M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 875 San Mateo Pacifica: San Pedro Valley County Park, along Brooks Creek Trail. 148 Comment
  JROH2784  Lepechinia calycina John H. Thomas 1955-5-6 5015 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2788  Lepechinia calycina Richard L. Garber 1971-5-18 23 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2790  Lepechinia calycina John H. Thomas 1971-5-30 15970 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC76164  Lepechinia calycina Milo S. Baker 1904-5-15 San Mateo near Burlingame Comment
  POM143624  Lepidium didymum Copeland 1903-6-5 3326 San Mateo Montara Point. Comment
  CAS-BOT-BC166770  Lepidium didymum Peter Rubtzoff 1978-7-8 9233 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CDA19902  Lepidium latifolium D. Pendleton 2002-5-28 PDR P 120141 San Mateo San Francisco Bay Area; Channel alongside Hwy 101, behind parking lot of Mervyn's on Walnut St. 0 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
  CAS-BOT-BC12600  Lepidium nitidum Margaret A. Barry 1937-5-8 83 San Mateo On Coal Mine Ridge. Comment
  JEPS127808  Lepidium nitidum Adam C. Schneider with C. Matt Guilliams 2013-4-7 70 San Mateo Along dirt road running parallel to overhead power lines. GPS coordinates approximate. Comment
  JROH1539  Lepidium nitidum Daniel Cohen 1953-4-11 11 San Mateo Jasper Ridge Biological Preserve, Stanford University; on north shore of Searsville Lake 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
  RSA66570  Lepidium oxycarpum D. D. Keck 1932-3-24 1401 San Mateo Redwood City, at border of San Francisco Bay. Comment
  CAS-BOT-BC12781  Lepidium perfoliatum David D. Keck 1932-3-24 1400 San Mateo Redwood City. At border of San Francisco Bay. Comment
  JROH1565  Lepidium strictum John Hunter Thomas 1990-5-2 24834 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC12951  Lepidium strictum Volney Rattan 1878-1-1 s.n. San Mateo South San Francisco. Comment
  JEPS53739  Lepidium strictum W. L. Jepson 1891-4-4 13362 San Mateo San Bruno Comment
  JROH5273  Leptochloa fusca subsp. fascicularis Ann Lambrecht 2006-8-23 33 San Mateo Jasper Ridge Biological Preserve, Stanford University; dry streambed of San Francisquito Creek 71 Comment
  CAS-BOT-BC226601  Leptosiphon ambiguus Lewis S. Rose 1948-5-16 48115 San Mateo Emerald Lake, hills w. of Redwood City 152 Comment
  CAS-BOT-BC226604  Leptosiphon ambiguus Ned Cahill 1974-4-1 149 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC226608  Leptosiphon ambiguus Arthur Spiegler 1952-4-26 27 San Mateo 4 miles from Woodside on Canada Road to Skyline Boulevard Comment
  SJSU15581  Leptosiphon ambiguus John Rawlings 2015-4-5 1452 San Mateo Along Edgewood Rd., San Mateo Co., California 146 Comment
  JROH5928  Leptosiphon androsaceus Herb Dengler 1970-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; East serpentine Comment
  RSA18357  Leptosiphon androsaceus C. B. Wolf 1929-5-25 3731 San Mateo N of Pigeon Pt, San Mateo Comment
  UCSC005503  Leptosiphon androsaceus Randall Morgan 1995-6-22 2797 San Mateo Ridge west of Waterman Creek 335 Comment
  SEINET3861922  Leptosiphon croceus Genevieve K. Walden 2009-6-22 203 San Mateo Moss Beach State Beach, Wylvale Rd. on cliff above beach.; 0 Comment
  UC106861 Image available Leptosiphon croceus Alice Eastwood 1901-5-10 San Mateo Blenheim Comment
  JROH3191  Leptosiphon parviflorus John Hunter Thomas 1981-4-23 20479 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD38813  Leptosiphon parviflorus Edith A. Purer 1933-4-25 3640 San Mateo Comment
  RSA0103658  Leptosiphon rosaceus E. B. Copeland 1903-6-6 3300 San Mateo Montara Point. Comment
  JEPS88045  Lessingia arachnoidea S. Markos 1996-7-28 126 San Mateo 200 yds S of Junction with Golf Course Rd. and Skyline Blvd.; Crystal Springs Reservoir Comment
  NY180563  Lessingia arachnoidea C. F. Baker 1902-9-2 1548 San Mateo Crystal Spring Lake Comment
  UC829024  Lessingia arachnoidea Lewis S. Rose 1941-9-6 41434 San Mateo San Mateo Canyon 91 Comment
  SEINET1782116  Lessingia bakeri Carl F. Baker 1902-10-20 1834 San Mateo Searsville. Comment
  SJSU15430  Lessingia germanorum Toni Corelli 2011-9-14 720 c San Mateo Northeast of Hillside Park, above houses 107 Comment
  JROH1010  Lessingia glandulifera var. glandulifera John H. Thomas 1963-5-15 10091 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1006  Lessingia glandulifera var. glandulifera G. H. Mallory 1919-7-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; south end of Jasper Ridge Comment
  CAS-BOT-BC324179  Lessingia hololeuca Ned Cahill 1974-10-8 378 San Mateo near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  CAS-BOT-BC324181  Lessingia hololeuca W. R. Dudley 1902-9-21 s.n. San Mateo Whipple Road, near Crystal Springs Lakes Comment
  CAS-BOT-BC324184  Lessingia hololeuca LeRoy Abrams 1900-10-1 1004 San Mateo Portola Comment
  JROH1036  Lessingia hololeuca Carol Zabel 1989-8-27 35 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
  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-BC342092  Leucanthemum vulgare John H. Thomas 1964-6-19 10424 San Mateo 0.9 miles south of Tunitas Creek near Coast Highway 60 Comment
  CAS-BOT-BC257355  Leucanthemum vulgare Peter Rubtzoff 1988-5-12 9922 San Mateo San Bruno Mountain, Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road between Bog Trail and Saddle Trail junctions. Comment
  CAS-BOT-BC342093  Leucanthemum vulgare Robert S. Cox, Jr. 1946-8-10 s.n. San Mateo Summit of Santa Cruz Mountains (Cahil [Cahill] Ridge) along State Highway 5, near road to Half Moon Bay Comment
  JEPS71202  Leymus triticoides William S. Cooper 1925-5-28 7 San Mateo Salada Comment
  UC37061  Leymus triticoides unknown San Mateo San Mateo Comment
  POM132683  Ligusticum apiifolium A. D. E. Elmer 1903-06 4803 San Mateo San Mateo Comment
  JROH2984  Ligustrum lucidum Ann Lambrecht, Paul Heiple 2008-1-9 39 San Mateo Jasper Ridge Biological Preserve, Stanford University; on Trail c Comment
  JEPS32129  Lilaea scilloides W. L. Jepson 1923-10-18 10260 San Mateo Colma Comment
  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
  SEINET7097927  Lilaea scilloides 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
  RSA10411  Lilaea scilloides Carl B. Wolf 1927-6-15 2163 San Mateo Along Skyline Drive, 8 mi. S of San Francisco. 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
  JROH4065  Limosella acaulis John Hunter Thomas 1985-8-7 23707 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM259951  Limosella acaulis I. L. Wiggins, Roxana S. Ferris 1939-8-2 9294 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC238360  Limosella aquatica J. Clausen 1939-7-1 1744 San Mateo Ano Nuevo Point Comment
  UC1174507  Linanthus ambiguus Le Roy Abrams 1902-5-4 2415 San Mateo Woodside Comment
  UC106676  Linanthus androsaceus Katharine Brandegee 1905-6-20 San Mateo near Lake Pilarcitos Comment
  UC908670  Linanthus androsaceus Herbert L. Mason 1935-5-21 8314 San Mateo near Moss Beach Comment
  UC202814  Linanthus androsaceus A. D. E. Elmer Apr 1903 4746 San Mateo Comment
  NY336940  Linanthus croceus A. Eastwood 1901-5-19 San Mateo Bleubuin? Comment
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Nov 16 2015
  UC133890  Linanthus liniflorus C. F. Baker 1902-5-4 760 San Mateo Woodside Comment
  UC142600  Lithocarpus densiflorus C. F. Baker 1902-10-1 1759 San Mateo Summit of Coast Range Comment
  CAS-BOT-BC436226  Lithophragma heterophyllum Margaret A. Barry 1937-5-15 92 San Mateo on Coal Mine Ridge Comment
  JROH3894  Lithophragma heterophyllum John Hunter Thomas 1983-4-5 21319 San Mateo Jasper Ridge Biological Preserve, Stanford University. Path to redwood area Comment
  CAS-BOT-BC283220  Lolium multiflorum Paul Reeberg 1989-6-18 s.n. San Mateo San Bruno Mountains. In area N of PG&E Marsh, Guadalupe Hills 60 Comment
  CAS-BOT-BC283230  Lolium multiflorum Cherie Wetzel 1969-6-20 882 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd Comment
  UCD66070  Lolium multiflorum Lewis S. Rose 1966-5-2 66036 San Mateo Emerald Lake, west of Redwood City. 91 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-BC269175  Lolium temulentum W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Baden Comment
  JROH5548  Lomatium caruifolium var. caruifolium John Rawlings 2013-4-2 1142 San Mateo Jasper Ridge Biological Preserve, Stanford University. Southeast side of creek and about 75 meters upstream of bridge on Trail 11 136 Comment
  UC21278  Lomatium caruifolium var. caruifolium J. Burtt Davy 1895-4-20 1031 San Mateo Lake San Andreas Comment
  JROH259  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1967-5-12 12876 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA452094  Lomatium dasycarpum subsp. dasycarpum Glenn A. Gorelick 1967-2-10 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  UC144367  Lomatium dasycarpum subsp. dasycarpum C. F. Baker 1902-4-6 460 San Mateo Crystal Springs Lake Comment
  UC75215  Lomatium dasycarpum subsp. dasycarpum C. F. Baker 1902-4-6 461 San Mateo Crystal Springs Lake Comment
  POM132877  Lomatium vaginatum A. D. E. Elmer 1903-04 4794 San Mateo Crystal Springs Lake. 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-BC240595  Lonicera hispidula Cherie Wetzel 1969-6-20 861 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  JROH1658  Lonicera hispidula John Hunter Thomas 1980-5-6 19925 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1664  Lonicera hispidula John Hunter Thomas 1989-5-9 24721 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1668  Lonicera hispidula John Rawlings, Ann Lambrecht 2010-6-23 0933 San Mateo Jasper Ridge Biological Preserve, Stanford University; thirty yards southeast of old brick well and a few yards uphill of Trail 2 extension near a large fallen oak and mature hawthorn 113 Comment
  UCD18547  Lonicera hispidula Roman Gankin 1950-7-9 18 San Mateo west side of the Peninsula Coast Range, San Mateo County Memorial Park, redwood belt. 213 Comment
  UC306779  Lonicera hispidula var. vacillans A. D. E. Elmer June, 1903 4255 San Mateo Crystal Springs Lake Comment
  SBBG53038  Lonicera involucrata var. ledebourii C. Bornstein 1994-6-7 San Mateo Gazos Crk Rd, 0.9 mi E of Hwy 1 22 Comment
  UC1125280  Lonicera involucrata var. ledebourii N. K. Carlson 1935-6-28 96 San Mateo 2 1/2 mi e Pigeon Point; Santa Cruz Quadrangle Comment
  UC306767  Lonicera involucrata var. ledebourii A. D. E. Elmer June, 1903 4272 San Mateo Lake San Andreas Comment
  UCD163731  Lonicera involucrata var. ledebourii Peter Rubtzoff 1980-12-11 9635 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC290619  Lotus Peter Rubtzoff 1987-7-31 9821 San Mateo Best Products Company parking lot on east side of Gellert Blvd. north of Westborough Blvd. intersection, South San Francisco. Comment
  JEPS34466  Lotus benthamii L. R. Heckard, and R. Bacigalupi 1963-7-2 1335 San Mateo trail to Montara Peak (nw slope), above old county road Montara Peak 335 Comment
  UC1321328  Lotus benthamii R. F. Hoover 1964-9-10 9290 San Mateo between Pedro Point and Montara; Devils Slide Comment
  RSA276357  Lotus corniculatus Jane Turner, Francis M. Ball 1962-7-7 1088 San Mateo Highway 1, ca. 10 miles N of Santa Cruz County line. Comment
  SEINET957265  Lotus corniculatus Jane A. Reese 1966-1 131 San Mateo Whiskey hill road, 1 mile from junction with Woodside road. 152 Comment
  RSA120441  Lotus heermannii W. R. Dudley 1895-9-15 s.n. San Mateo El Corte de Madera, west side., Santa Cruz Range. Comment
  UC69541  Lotus humistratus J. Burtt Davy 1893-6-17 796 San Mateo Belmont Comment
  HSC23905  Lotus scoparius Mary Katherine Wicksten 1971-6-21 85 San Mateo Huddart Park Comment
  SEINET12151371  Lotus subpinnatus Unknown 1932-1 9102 San Mateo Betw. Sky Line Drive and Half Moon Bay Comment
  RSA11934  Lotus unifoliolatus Elmer I. Applegate 1895-5-11 115 San Mateo Searsville road. Comment
  CAS-BOT-BC60246  Lunaria annua E. W. Rust 1908-3-28 s.n. San Mateo Vicinity of Stanford University. Woodside Post Office. Comment
  UC81978  Lupinus affinis C. F. Baker 1902-4-6 473 San Mateo Crystal Springs Lake Comment
  SEINET10903755  Lupinus albifrons Charles Piper Smith 1948-4-23 Smith 48146 San Mateo Glabrous keel, abnormal could mean hybridization to formosus or chamissouris Hwy 5, junction s.f. Co jail road Comment
  CAS-BOT-BC195802  Lupinus albifrons var. albifrons Charles Piper Smith 1922-6-10 3548 San Mateo South San Francisco - mountain road Comment
  POM11053  Lupinus albifrons var. albifrons A. D. E. Elmer 1903-05 4643 San Mateo Belmont. Comment
  CAS-BOT-BC195799  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-21 48463 San Mateo Highway 5 - junction Burlingame 4 mile road, 0.6 miles North Comment
  CAS-BOT-BC196109  Lupinus albifrons var. collinus Javier Penalosa 1963-3-30 2725 San Mateo North of Randolph Drive at Hillside Blvd. in SSF 91 Comment
  CAS-BOT-BC196110  Lupinus albifrons var. collinus Walter Knight; Irja Knight 1964-3-15 580 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
  RSA134041  Lupinus albifrons var. collinus Roxana S. Ferris 1921-4-7 2131 San Mateo San Bruno mountain near San Francisco 213 Comment
  SEINET10871208  Lupinus albifrons var. flumineus Charles Piper Smith 1946-3-26 Smith 46115 San Mateo Hwy 5, san francisco co jail road n Comment
  CHSC903  Lupinus arboreus A. Koopman 1929-5-9 San Mateo Moss Beach. 9 Comment
  POM349925  Lupinus arboreus var. arboreus E. A. Purer 1933-7-27 18256 San Mateo Two miles south of Pigeon Point Comment
  POM349926  Lupinus arboreus var. arboreus Unspecified s.n. San Mateo San Francisco coast. Comment
  SEINET12154472  Lupinus bicolor Unknown 1932-1 9116 San Mateo Half Moon Bay Comment
  SEINET11071805 Image available Lupinus bicolor subsp. umbellatus A. A. Heller 1907-1 8451 San Mateo Near Lake Merced Comment
  SEINET11071791 Image available Lupinus collinus A. A. Heller 1907-4-25 8462 San Mateo San Bruno Hills Comment
  POM257513  Lupinus densiflorus var. aureus Carl B. Wolf 1929-5-17 3712 San Mateo Alpine road east of Skyline Blvd. 305 Comment
  RSA159408  Lupinus densiflorus var. densiflorus John H. Thomas 1961-5-14 9377 San Mateo Just north of dam on San Mateo Creek. 122 Comment
  JROH5630  Lupinus formosus var. formosus John Rawlings 2014-5-9 1228 San Mateo Jasper Ridge Biological Preserve, Stanford University; about 20 meters west of Road C and 20 meters south of Trail 18. 127 Comment
  SEINET4853650  Lupinus lasiotropis Carl F. Baker Not on sheet 470 San Mateo Crystal Springs Lake. Comment
  SEINET10961856 Image available Lupinus latifolius Charles F. Baker Baker 470 San Mateo Crystal Springs Lake. Comment
  UC865131  Lupinus microcarpus var. densiflorus Lewis S. Rose 1939-5-13 39112 San Mateo w Burlingame 60 Comment
  SEINET10451625  Lupinus nanus subsp. nanus P. Wheeler 1965-5-8 Wheeler UMO 104190 San Mateo Sierra point. Comment
  SEINET10490839  Lupinus nanus subsp. nanus Walter Knight, Irja Knight 1967-6-6 Knight 2070 San Mateo Point san bruno. Comment
  POM10635  Lupinus polycarpus C. F. Baker 1903-4-8 1931 San Mateo Crystal Springs Lake. Comment
  SEINET10837785  Lupinus succulentus var. succulentus Charles Piper Smith 1948-4-20 Smith 48111 San Mateo Hwy 1. San Pedro Point, south slope. Comment
  HSC76497  Lupinus vallicola subsp. apricus Charles Piper Smith 1946-3-26 46118 San Mateo Wood side, 2.3 mi. N Comment
  SD60197  Lupinus vallicola subsp. apricus J. I. McMurphy 1911-4-24 San Mateo Corner between San Francisquito & Los Francos Creek near Stanford University Comment
  POM10801  Lupinus variicolor E. B. Copeland 1903-6-3 3302 San Mateo Montara Point Comment
  RSA249488  Lupinus variicolor John F. Emmel 1972-3-26 395 San Mateo Along Guadalupe Cyn. Parkway near NE-facing slope 0.4 air mile SSW of Midway Village School, San Bruno Mts. 91 Comment
  SEINET10489094  Lupinus variicolor Wheeler 1965-6-13 WHEELER UMO 104126 San Mateo San bruno mtn. Colma canyon. Comment
  SEINET12154794  Lupinus variicolor M. T. Doutt 1931-1 422 San Mateo Skyline Blvd, W of Hillbrae Comment
  CAS-BOT-BC441262  Luzula macrantha W. R. Dudley 1908-3-8 s.n. San Mateo Santa Cruz Mountain Peninsula: Coal Mine Ridge near Mud Lakes 335 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
  CAS-BOT-BC441371  Luzula subsessilis M. S. Jussel 1931-4-18 s.n. San Mateo Colma Canyon Comment
  CAS-BOT-BC441374  Luzula subsessilis R. E. Frenkel 1964-5-22 505 San Mateo San Francisco Water District, 0.3 mile N of Sawyer Ridge Road, on Portola Ridge Road 268 Comment
  JROH3398  Lysimachia latifolia John Hunter Thomas 1991-4-25 24997 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC290600  Lythrum Peter Rubtzoff 1987-8-26 9837 San Mateo San Bruno Mountain, Saddle area on N side of Guadalupe Canyon. Parkway west of Radio Road junction; northwestern part of the area along old Guadalupe Road. Comment
  CHSC28568  Lythrum hyssopifolia M. S. Taylor 1978-5-31 1874 San Mateo Ano Nuevo State Reserve. Comment
  JROH2952  Lythrum hyssopifolia John Hunter Thomas 1981-7-12 20688 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat dock Comment
  JROH5961  Lythrum hyssopifolia John Rawlings 2017-5-9 2053 San Mateo Jasper Ridge Biological Preserve, Stanford University; drainage ditch along road south of visitor oarking lot near trail up slope to Global Change site. 115 Comment
  RSA0011334  Lythrum hyssopifolia John H. Thomas 1954-5-28 4242 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 30 Comment
  RSA210921  Madia Cherie L. Wetzel 1969-7-28 994 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC343903  Madia elegans David D. Keck 1932-6-18 1979 San Mateo Skyline Blvd., at Langley Hill. (S.W. of Stanford University) 600 Comment
  CAS-BOT-BC343916  Madia elegans Rosenbaum 1916-9-30 s.n. San Mateo Near San Mateo Co. Almshouse Comment
  CAS-BOT-BC344487  Madia exigua W. R. Dudley 1906-6-11 s.n. San Mateo Santa Cruz Mountain Peninsula. Field E. of Kings Mt. House Comment
  JROH1052  Madia exigua John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1057  Madia exigua John Hunter Thomas 1982-7-3 21066 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
  UC1111618  Madia exigua Lewis S. Rose 1956-5-28 56083 San Mateo w of Redwood City (hills); Emerald Lake 182 Comment
  CAS-BOT-BC343326  Madia gracilis W. R. Dudley 1894-5-20 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Redwood City Comment
  JEPS112942  Madia gracilis Dean W. Taylor 1994-5-10 14275 San Mateo San Mateo Creek drainage; along Crystal Springs Road 0.3 mi East of junction of Tartan Trail 67 Comment
  JROH1068  Madia gracilis John H. Thomas 1961-5-5 9222 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1079  Madia gracilis John Hunter Thomas 1981-5-19 20602 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1084  Madia gracilis John Hunter Thomas 1985-5-7 23642 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1087  Madia gracilis John Hunter Thomas 1986-5-1 23997 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1090  Madia gracilis John Hunter Thomas 1987-5-19 24295 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176827  Madia gracilis John H. Thomas 1961-5-5 9222 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto; above Searsville Lake Comment
  RSA6299  Madia gracilis D. D. Keck 1932-5-6 1485 San Mateo Hills just west of Millbrae Highlands 120 Comment
  CAS-BOT-BC345139  Madia sativa Margaret A. Barry 1937-7-17 211 San Mateo Coal Mine Ridge Comment
  JEPS30896  Madia sativa J. H. Thomas 1959-8-16 8064 San Mateo about 2 mi sw Pescadero 60 Comment
  UC913116  Madia sativa David D. Keck 1930-10-15 988 San Mateo sw Woodside; Coast Ranges 450 Comment
  CAS-BOT-BC345108  Madia sativa W. R. Dudley 1901-5-11 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Colma Comment
  CAS-BOT-BC345129  Madia sativa David D. Keck 1934-7-7 2941 San Mateo South of the mouth of Tunitas Creek Comment
  JROH1113  Madia sativa John Hunter Thomas 1988-6-6 24511 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Lakeside Laboratory Comment
  POM298334  Madia sativa D. D. Keck 1930-10-15 988 San Mateo SW of Woodside 457 Comment
  CHSC27854  Maianthemum racemosum Susan Perkins 1978-3-24 13 San Mateo Stage Road, 4 mi s of San Gregorio, 2.5 mi n of Pescadero, ca. 8 mi sw of La Honda. 60 Comment
  JROH4693  Maianthemum racemosum L. R. Abrams 1916-3-25 5585 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Ridge near Dam Comment
  CAS-BOT-BC512107  Maianthemum racemosum subsp. amplexicaule Fred Hemphill 1973-3-17 638 San Mateo San Carlos. Chaparral area north of Malabar Road and Melendy Drive 207 Comment
  SD39133  Maianthemum racemosum subsp. amplexicaule Marie Cummings 1933-4-11 12 San Mateo Pescadero. Comment
  CAS-BOT-BC512110  Maianthemum racemosum subsp. amplexicaule Mrs. S. G. Suttiffe 1921-4-3 s.n. San Mateo Lake Pilarcitos Comment
  CHSC57106  Maianthemum stellatum Steven Triano 1988-5-24 208 San Mateo Along s side of Old La Honda Road ca 0.3 mi e of its jct. With La Honda Road. 365 Comment
  JROH4709  Maianthemum stellatum John Hunter Thomas 1977-6-16 18746 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4713  Maianthemum stellatum John Hunter Thomas 1981-4-5 20260 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC514158  Maianthemum stellatum Lewis S. Rose 1933-4-9 33070 San Mateo Belmont, wooded hills Comment
  CAS-BOT-BC514163  Maianthemum stellatum D. D. Davis 1903-3-1 s. n. San Mateo Unspecified Comment
  UCSB17388  Maianthemum stellatum Schulte, John 1963-4-9 San Mateo Jasper Ridge, 3 miles SW of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC203907  Malacothamnus aboriginum George Oberlander 1949-7-10 258 San Mateo San Francisco Watershed Reserve. South end of Sawyer Ridge 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
  SEINET7248024  Malva assurgentiflora Robert C. Bechtel 1952-1 84 San Mateo Colma Comment
  JROH2964  Malva nicaeensis John H. Thomas 1966-4-24 11576 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA195577  Malva nicaeensis John H. Thomas 1966-4-24 11576 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CHSC1037  Malva sylvestris L. Lancelot 1930-5-3 San Mateo Moss Beach. Comment
  CDA34450  Marah fabacea M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 879 San Mateo Pacifica: San Pedro Valley County Park, at Brooks Creek Trail trailhead, near visitor center's parking lot. 74 Comment
  RSA176523  Marah fabacea John H. Thomas 1961-4-29 1995 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto. Comment
  POM88005  Marah oregana L. R. Abrams 1902-4-13 2341 San Mateo San Andreas Lake. Comment
  JROH617  Matricaria discoidea John H. Thomas 1971-4-21 15767 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH620  Matricaria discoidea John Hunter Thomas 1978-4-25 19154 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC422683  Meconella californica Miss E. Cannon 1898-3-26 s.n. San Mateo South San Francisco Comment
  JROH2155  Medicago arabica John Hunter Thomas 1992-4-23 25156 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Rattlesnake Rocks and along trail to redwoods Comment
  JROH2165  Medicago polymorpha John H. Thomas 1967-5-10 12863 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2176  Medicago polymorpha John Hunter Thomas 1992-5-14 25229 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat ramp Comment
  POM296543B  Melica imperfecta Lyman Benson 1930-5-12 2126 San Mateo San Mateo County: Lake Searsville. 152 Comment
  UCD87869  Melica imperfecta P. B. Kennedy 1916-4-1 s.n. San Mateo Daly City, Colma Canyon, S San Francisco. Comment
  CAS-BOT-BC264253  Melica torreyana W. R. Dudley 1900-3-16 s.n. San Mateo Redwood Stage Road, Santa Cruz Mountain Peninsula Comment
  JROH5313  Melica torreyana John H. Thomas 1964-4-12 10310 San Mateo Jasper Ridge Biological Preserve, Stanford University. On slope to the east of the dam. Comment
  JROH2803  Melissa officinalis John Hunter Thomas 1992-7-24 25384 A San Mateo Jasper Ridge Biological Preserve, Stanford University; along causeway Comment
  POM284512  Melissa officinalis Lyman Benson 1937-7-15 8456 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains; San Francisco Bay watershed. 244 Comment
  UCR177714  Mentha canadensis L. S. Rose 1936-9-13 36730 San Mateo Granada 2 Comment
  JROH2825  Mentha pulegium John Hunter Thomas 1991-11-21 25106 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing of San Francisquito Creek Comment
  POM177324  Mercurialis annua L. R. Abrams, I. L. Wiggins, D. Abrams 1930-11-13 I 80 San Mateo Artichoke field 3 mi. S. of Rockaway Beach (Pedro Valley). Comment
  POM177458  Mercurialis annua L. R. Abrams, I. L. Wiggins 1930-11-13 179 San Mateo 3 miles S of Rockaway Beach (Pedro Valley) Comment
  CAS-BOT-BC438140  Mesembryanthemum nodiflorum William Anderson 1968-7-25 s.n. San Mateo At west approach of Dumbarton Bridge on south side of road. Comment
  CAS-BOT-BC428902  Micranthes californica George Oberlander 1949-4-9 50 San Mateo San Francisco Watershed Reserve. Northern Sweeney Ridge Comment
  CAS-BOT-BC428903  Micranthes californica Elizabeth McClintock 1965-3-21 s.n. San Mateo San Bruno Mountain. 1/4 mi. e. of Brisbane power lines Comment
  JROH3905  Micranthes californica D. D. Davis 1903-3-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC348720  Microseris bigelovii John H. Thomas 1966-4-30 11591 San Mateo Bluffs at San Gregorio Beach Comment
  CAS-BOT-BC349021  Microseris douglasii subsp. douglasii LeRoy Abrams 1902-5-4 2418 San Mateo Woodside Comment
  CAS-BOT-BC349031  Microseris douglasii subsp. douglasii John H. Thomas 1961-5-7 9259 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JEPS49070  Microseris douglasii subsp. douglasii Lewis S. Rose 1966-5-2 66037 B San Mateo w Redwood City; Emerald Lake 91 Comment
  JROH1139  Microseris douglasii subsp. douglasii John H. Thomas 1956-4-7 5615 San Mateo Jasper Ridge Biological Preserve, Stanford University; open serpentine area on top of ridge and adjacent slopes Comment
  POM87986  Microseris douglasii subsp. douglasii L. R. Abrams 1902-5-4 2418 San Mateo Woodside. 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-BC349034  Microseris douglasii subsp. douglasii Lewis S. Rose 1956-5-28 56079 San Mateo Skyline Blvd w. of San Mateo 182 Comment
  POM289996  Microseris douglasii subsp. douglasii Arthur L. Cohen 1935-4-21 621 San Mateo Jasper Ridge, San Francisquito Creek. 122 Comment
  CAS-BOT-BC349148  Microseris douglasii subsp. tenella LeRoy Abrams 1902-5-4 2423 San Mateo Woodside Comment
  POM203100  Microseris douglasii subsp. tenella L. S. Rose 1933-4-30 33129 San Mateo Redwood City Comment
  CAS-BOT-BC27842  Microseris heterocarpa Albert Kellogg s.n. San Mateo San Bruno Hills Comment
  JROH4076  Mimulus aurantiacus var. aurantiacus John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1063401  Mimulus aurantiacus var. aurantiacus H. S. Yates 1935-2-3 5013 San Mateo 1/2 mi se Pigeon Pt.; Santa Cruz Quadrangle Comment
  RSA788375  Mimulus guttatus Peter Rubtzoff 1976-6-30 8705 San Mateo San Bruno Mountains: 'Saddle' area on N side of Guadalupe Canyon Parkway west of Radio Road junction. Westernmost part of the area on a slope across fence. Comment
  CAS-BOT-BC388827  Minuartia douglasii A. D. E. Elmer 1903-4-1 5042 San Mateo San Bruno Hills Comment
  CAS-BOT-BC388837  Minuartia douglasii Le Roy Abrams 1902-5-4 2429 San Mateo Woodside Comment
  CAS-BOT-BC388829  Minuartia douglasii W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Crystal Springs Lake Comment
  CAS-BOT-BC214065  Monardella villosa Phillip C. Wheeler 1965-5-11 s.n. San Mateo Southwest canyon below NBC Tower, San Bruno Mountain Comment
  CAS-BOT-BC214071  Monardella villosa Charles Piper Smith 1908-5-31 1444 San Mateo San Mateo Canyon Comment
  CAS-BOT-BC214074  Monardella villosa Mrs. E. C. Sutliffe 1934-7-12 s.n. San Mateo Ocean Shore Road Comment
  CAS-BOT-BC214078  Monardella villosa Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo Quarry 4, San Bruno Mountain Comment
  CAS-BOT-BC214089  Monardella villosa H. M. Hall 1924-1-1 11958 San Mateo S.W. side Montara Mt. Comment
  CAS-BOT-BC214173  Monardella villosa Gelsomina Smith 1951-6-5 106 San Mateo Searsville Lake edge 106 Comment
  RSA0022802  Monardella villosa subsp. subserrata E. S. Spalding 1923-8-3 s.n. San Mateo Near Pulgas Tunnel. Comment
  JROH2842  Monardella villosa subsp. villosa John H. Thomas 1976-5-26 18159 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2833  Monardella villosa subsp. villosa John H. Thomas 1961-6-7 9529 San Mateo Jasper Ridge Biological Preserve, Stanford University; just above Searsville Lake Comment
  CAS-BOT-BC327793  Monolopia gracilens Fred Hemphill 1973-4-22 770 San Mateo San Carlos. N of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC349587  Monolopia major W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Mountain Peninsula. Ravine of San Mateo Creek Comment
  CAS-BOT-BC444951  Montia fontana Evelina Cannon 1895-4-9 s.n. San Mateo South San Francisco Comment
  CAS-BOT-BC444954  Montia fontana George Oberlander 1950-4-16 632 San Mateo San Francisco Watershed Reserve. Below San Andreas Dam Comment
  UC311167  Montia parvifolia A. D. E. Elmer May, 1903 4577 San Mateo Iverson's Place Comment
  CAS-BOT-BC445197  Montia parvifolia W. R. Dudley 1909-4-27 s.n. San Mateo Santa Cruz Mountain Peninsula. Pulpit Rock, San Mateo Canon [Canyon] Comment
  POM164023  Montia parvifolia A. D. E. Elmer 1903-05 4577 San Mateo Iversons Place Comment
  UCD163600  Morella californica Peter Rubtzoff 1980-12-11 9634 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC508579  Muilla maritima John H. Thomas 1967-5-2 12817 San Mateo Along Skyline Blvd., 0.4 mile south of Black Mt. intersection, Hillsborough Comment
  CAS-BOT-BC508581  Muilla maritima Cynthia Steele 1948-4-18 34 San Mateo Redwood City Comment
  CAS-BOT-BC508584  Muilla maritima C. F. Baker 1902-3-30 423 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC515667  Muscari botryoides J. H. Thomas 1960-3-30 8560 San Mateo San Francisco Creek near El Camino, Menlo Park. Comment
  JROH1399  Myosotis latifolia John Rawlings 2007-4-1 0986 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2, 500 yards east of Zoology Cabin site. 69 Comment
  RSA159422  Myosotis latifolia John H. Thomas 1961-5-14 9370 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  RSA128901  Myosotis latifolia Roxana S. Ferris 1920-4-26 1960 San Mateo Pescadero Creek at beginning of the canyon. 244 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
  JROH2690  Myriophyllum aquaticum John H. Thomas 1970-7-5 15675 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Comment
  UC1101504  Myriophyllum sibiricum Herbert L. Mason and Verne Grant 1946-8-28 13079 San Mateo Sag Pond N of San Francisco County Prison. Comment
  RSA132434  Myriophyllum spicatum John H. Thomas 1955-12-6 5513 San Mateo At the southern end of San Andreas Lake. Comment
  CAS-BOT-BC260231  Nassella pulchra Lewis S. Rose 1956-5-7 56071 San Mateo Skyline Boulevard W of San Mateo 182 Comment
  CAS-BOT-BC260234  Nassella pulchra A. D. E. Elmer 1903-6-1 4712 San Mateo Crystal Springs Lake Comment
  SEINET10496814  Navarretia atractyloides Mary Susan Taylor 1978-8-30 Taylor 1871 San Mateo Comment
  JROH5661  Navarretia heterodoxa John Rawlings 2014-6-7 1261 San Mateo Jasper Ridge Biological Preserve, Stanford University; on both sides of Trail 9 through chamise chaparral east of WIFI station 197 Comment
  UC306768  Navarretia heterodoxa A. D. E. Elmer Jun 1903 4282 San Mateo Crystal Springs Lake Comment
  JROH3205  Navarretia heterodoxa (John H. Thomas) 1983-6-29 22715 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA42950  Navarretia heterodoxa R. C. Bacigalupi 1947-6-4 2821 San Mateo Back of San Carlos Comment
  SEINET8729365 Image available Navarretia heterodoxa L. S. Rose 1941-1 41269 San Mateo Hills west of Redwood City, Emerald Lake 120 Comment
  UC570261  Navarretia squarrosa N. K. Carlson 1935-6-29 106 San Mateo 1 mi s Pescadero; Santa Cruz Quad. 91 Comment
  UCR121584  Navarretia squarrosa George K. Helmkamp, E. A. Helmkamp 1999-6-28 4985 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  JROH2736  Nemophila heterophylla John Hunter Thomas 1991-4-11 24978 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Rattlesnake Rocks Comment
  POM65254  Nemophila menziesii var. menziesii C. F. Baker 1902-4-12 500 San Mateo La Honda. Comment
  CAS-BOT-BC219471  Nemophila parviflora Margaret A. Barry 1937-5-15 122 San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC219474  Nemophila parviflora Alice Eastwood 1922-5-27 11325 San Mateo La Honda Comment
  CAS-BOT-BC219478  Nemophila parviflora Ira L. Wiggins 1928-4-14 2901 San Mateo Alpine Creek Road Comment
  CAS-BOT-BC219489  Nemophila parviflora Lewis S. Rose 1933-4-9 33067 San Mateo Belmont Comment
  CDA29076  Nemophila parviflora D. G. Kelch 2009-6-9 9 .407 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
  RSA152238  Nemophila parviflora var. parviflora I. L. Wiggins 1925-04 1670 San Mateo First bridge across small creek on Kings Mountain Road above Woodside Comment
  SEINET6966637  Nerium oleander R. A. Evers, Clara V. Evers 1975-8-24 115027 San Mateo Trailer Villa, Redwood City. Comment
  JROH4167  Nicotiana acuminata var. multiflora Herb Dengler 1982-7-26 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. A single plant next to locked gate to S.F. Cr. crossing above Dennis Martin Mill site. Comment
  JROH4168  Nicotiana acuminata var. multiflora Monica Bjorkman 1988-10-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry stream bed of SF Creek upstream from the Low Flow Crossing. Comment
  CAS-BOT-BC140425  Oemleria cerasiformis A. D. E. Elmer 1903-3-1 4579 San Mateo Woodside Comment
  CAS-BOT-BC140435  Oemleria cerasiformis Walter Knight; Irja Knight 1965-4-4 1011 San Mateo Bitter Cherry Ravine Comment
  JROH3705  Oemleria cerasiformis John H. Thomas 1963-4-17 10035 San Mateo Jasper Ridge Biological Preserve, Stanford University. Moist slope along road near Searsville Lake Comment
  POM139643  Oemleria cerasiformis A. D. E. Elmer 1903-03 4579 San Mateo Woodside. Comment
  RSA124761  Oemleria cerasiformis John H. Thomas 1958-2-15 6983 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  JEPS43966  Oenothera glazioviana W. L. Jepson 1910-8-17 4156 San Mateo Purissima Ck. Comment
  JROH2990  Olea europaea John H. Thomas 1967-6-1 12981 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS19482  Orobanche californica subsp. californica Herbert L. Mason 1927-7-28 3983 San Mateo Pigeon Point. Comment
  UC217609  Orobanche californica subsp. californica Katharine Brandegee San Mateo San Pedro. Comment
  CAS-BOT-BC499689  Orobanche californica subsp. californica L. R. Abrams 1909-8-2 4275 San Mateo Santa Cruz Peninsula; Pebble Beach hotel, Pescadero Comment
  CAS-BOT-BC238396  Orthocarpus Charles Piper Smith 1950-5-15 50143 San Mateo Pescadero Creek Bridge - Highway 1; 3.9 miles south Comment
  RSA152408  Orthocarpus faucibarbatus var. albidus R. C. Bacigalupi, G. Thomas Robbins 1954-6-18 4562 San Mateo Immediately behind Point Ano Nuevo. Comment
  POM204462  Orthocarpus floribundus J. T. Howell 1933-5-26 11346 San Mateo Crystal Springs Lake. Comment
  RSA516520  Orthocarpus floribundus W. L. Jepson 1919-4-19 8231 San Mateo S San Francisco. Comment
  RSA402039A  Orthocarpus lithospermoides Francis W. Pennell, D. D. Keck 1940-5-15 25413 San Mateo Emerald Lake, above Redwood City. 46 Comment
  SEINET8723036 Image available Osmaronia cerasiformis Lewis S. Rose 1937-1 37004 San Mateo Skyline Blvd. , W. of Tanforan Alt. 600 ft. 183 Comment
  RSA176714  Osmorhiza berteroi John H. Thomas 1963-6-23 10168 San Mateo Jasper Ridge Biological Experimental Area, about 5 mi SW of Palo Alto. Along road at Westridge end of ridge Comment
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Feb 15 2013
  JROH302  Osmorhiza berteroi John Hunter Thomas 1992-4-30 25174 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET244349  Osmorhiza chilensis David H. French 1968-4-12 2843 San Mateo Near Palo Alto coast (Pescadero) Road, 11.7 mi. E. of Pescadero. Comment
  CAS-BOT-BC166730  Oxalis albicans subsp. pilosa Peter Rubtzoff; Roman Gankin 1975-5-21 7964 San Mateo San Bruno Mountains. Saddle area north of Guadalupe Canyon Parkway and west of Radio Road junction. Comment
  POM139435  Oxalis oregana A. D. E. Elmer 1903-03 4532 San Mateo Portola Comment
  RSA130337  Oxalis oregana Helen M. Edwards 1917-3-8 s.n. San Mateo Woodside. Comment
  UC762243  Oxalis oregana R. F. Hoover 1939-3-3 3896 San Mateo above Portola (on La Honda rd) Comment
  POM278936  Oxalis oregana Lyman Benson 1931-2-27 2616 San Mateo Woodside, Santa Cruz mountains, San Francisquito Creek watershed, Kings Mt Road 183 Comment
  SBBG51534  Oxalis oregana J. Doty 1969-3-26 602 San Mateo St Hwy 34, 6 mi N of its jct with St Hwy 38, San Francisco Peninsula Comment
  SEINET10870216  Oxalis oregana R. D. Sage 1992-1-6 Sage 13395 -2 San Mateo Collected along purisima creek rd trail in purisima creek redwoods open space preserve. 9 Km w woodside. 244 Comment
  SEINET12182802  Oxalis oregana Unknown 1933-1 10394 San Mateo White House Creek Comment
  UCD111005  Oxalis pilosa J. D. Skoss 1948-8-22 129 San Mateo San Vicente Canyon near Montara. 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
  CAS-BOT-BC253971  Parapholis incurva J. H. Thomas 1962-5-12 9859 San Mateo Franklin Point Comment
  JEPS71261  Parapholis incurva A. L. Hormay 1932-5-29 San Mateo San Bruno; San Francisco Bay Shore Comment
  CAS-BOT-BC413448  Parietaria judaica Elizabeth McClintock; Paul Reeberg 1989-5-2 s.n. San Mateo San Bruno Mountains. Along Harold Road 91 Comment
  JROH5341  Paspalum dilatatum John Rawlings 2010-8-19 1061 San Mateo Jasper Ridge Biological Preserve, Stanford University. Adjacent to caretakers residence. 106 Comment
  JROH1400  Pectocarya pusilla J. I. McMurphy 1911-5-11 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA117092  Pedicularis densiflora Carl B. Wolf 1927-3-2 235 San Mateo Above Searsville Lake. Comment
  RSA130342  Pedicularis densiflora E. W. Rust 1907-4-27 135 San Mateo King's Mountain. Comment
  HSC24039  Pedicularis densiflora Mary Katherine Wicksten 1971-6-30 143 San Mateo Huddart Park Comment
  JROH4106  Pedicularis densiflora Duncan M. Porter 1961-1-18 736 San Mateo Jasper Ridge Biological Preserve, Stanford University; Westridge end of Jasper Ridge Comment
  SBBG34023  Pedicularis densiflora L. S. Rose 1969-3-27 San Mateo 2 mi NW of Woodside 182 Comment
  SEINET12270441  Pedicularis densiflora Unknown 1930-1 7320 San Mateo Jasper Ridge Comment
  CAS-BOT-BC7097  Pedicularis dudleyi Adolph Daniel Edward Elmer 1903-6-1 4289 San Mateo Pescadero Creek - Iverson's Place Comment
  CAS-BOT-BC207020  Pelargonium vitifolium J. H. Thomas 1954-6-11 4289 San Mateo About 1 mile north of Pigeon Point 30 Comment
  CAS-BOT-BC207030  Pelargonium vitifolium J. H. Thomas 1959-8-16 8066 San Mateo About 2 miles north of 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
  UC729633  Pelargonium vitifolium Carl B. Wolf 1929-5-10 3704 San Mateo s of Pescadero (Pigeon Pt); Pigeon Pt. 30 Comment
  SEINET4555767 Image available Pellaea andromedifolia John P. Young 1925-1-9 San Mateo Burlingame Comment
  POM281947  Pellaea mucronata Lyman Benson 1928-12-15 830 San Mateo La Honda Road, Santa Cruz Mountain Range 366 Comment
  JROH5876  Pentachaeta alsinoides John Hunter Thomas 1989-5-5 24655 San Mateo Jasper Ridge Biological Preserve, Stanford University. [Along Rd. F] 166 Comment
  CAS-BOT-BC330478  Pentachaeta alsinoides Elizabeth McClintock; Phillip Wheeler 1967-5-14 s.n. San Mateo San Bruno Mountain. Wheeler's 3-aces, above Harold Road, Brisbane Comment
  UC133379  Pentachaeta exilis C. F. Baker 1902-4-4 446 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC413607  Persicaria amphibia A. D. E. Elmer 1903-7-1 4650 San Mateo San Pedro Comment
  CAS-BOT-BC413609  Persicaria amphibia W. R. Dudley 1909-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula. North Pond - north end of county Comment
  CAS-BOT-BC413610  Persicaria amphibia W. R. Dudley 1909-10-31 s.n. San Mateo Santa Cruz Mountain Peninsula. Hooper's Pond, Woodside Comment
  JROH3269  Persicaria lapathifolia Roxana S. Ferris 1924-10-6 4094 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Comment
  UCD99467  Persicaria lapathifolia Verne Grant; Herbert L. Mason 1946-8-28 13089 San Mateo Santa Cruz - Daly City Road #5, south of San Francisco. Comment
  CAS-BOT-BC419155  Persicaria maculosa Ira L. Wiggins 1980-8-29 22262 San Mateo Bed of San Francisquito Creek ca 75 m upstream from Pope Street bridge Comment
  JROH3277  Persicaria maculosa John Hunter Thomas 1982-11-6 21201 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta along edge of Searsville Lake. 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
  JROH1165  Petasites frigidus var. palmatus Paul Heiple 2007-3-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; NW of Leonard's Bridge along Trail 13 Comment
  RSA152207  Phacelia californica John H. Thomas 1961-5-7 9313 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  JROH2758  Phacelia distans John Rawlings 2008-4-23 1031 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just west of Rd C in small, grassy opening on slope uphill from blue metal bridge near beginning of Rd 19 that leaves Rd. C 30 meters south of the main San Francisquito Creek/Rd C bridge. 92 Comment
  RSA426083  Phacelia distans L. S. Rose 1939-4-13 39065 San Mateo San Mateo Canyon near Crystal Springs Lake. 61 Comment
  UCD120425  Phacelia distans Lewis S. Rose 1963-5-23 63060 San Mateo Thornton Beach Park. 30 Comment
  UC1084388  Phacelia divaricata G. Thomas Robbins 1937-4-11 96 San Mateo near Spring Valley Lakes (along road to Woodside) Comment
  CDA929  Phacelia malvifolia D. G. Kelch, B. G. Baldwin, Sue Bainbridge, Abigail Moore 2005-6-21 5 .367 San Mateo S.F. Water District land, near Spring Valley. NE corner Pilarcitos Lake. Comment
  POM65348  Phacelia malvifolia A. D. E. Elmer 1903-05 4784 San Mateo San Bruno Hills. Comment
  RSA51310  Phacelia malvifolia Peter H. Raven 1950-4-30 1984 San Mateo Along a stream in the Montara Mountains, ca. 0.5 miles north [?] of Montara City. 91 Comment
  UC306565  Phacelia nemoralis subsp. nemoralis A. D. E. Elmer June 1903 4419 San Mateo Crystal Springs Lake Comment
  POM87704  Phacelia nemoralis subsp. nemoralis L. R. Abrams 1901-5-5 1575 San Mateo Bear Gulch, Santa Cruz Mountains. Comment
  JROH2764  Phacelia rattanii John H. Thomas 1961-6-7 9530 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC259002  Phalaris californica Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Base of Quarry #2 Comment
  CAS-BOT-BC259003  Phalaris californica Ira L. Wiggins 1928-4-22 2943 San Mateo Moss Beach Comment
  RSA128340  Phalaris californica P. H. Raven 1950-6-3 2275 San Mateo along dry rivulet flowing into San Andrews Lake, Crystal Springs Lake 122 Comment
  RSA17945  Phalaris minor C. B. Wolf, Le Roy Abrams 1927-6-4 s.n. San Mateo San Gregorio Comment
  CDA2317  Phalaris paradoxa T. C. Fuller 1967-6-13 15948 San Mateo Road to San Mateo, 0.7 mile east of Skyline Blvd., east above Crystal Springs Lake. 0 Comment
  JROH5855  Phalaris paradoxa Herb Dengler 1980-6-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; ca. 100 yards due N. of 2nd enclosure Comment
  JROH5385  Phleum pratense John Rawlings 2009-7-1 1023 San Mateo Jasper Ridge Biological Preserve, Stanford University. Bear Creek. 82 Comment
  UC52847  Phlox gracilis J. Burtt Davy Jun 21 1893-Jun 23 1893 1044 San Mateo Pilarcitos Lake and Canyon Comment
  CAS-BOT-BC222504  Pholistoma auritum var. auritum Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  JROH2767  Pholistoma auritum var. auritum John H. Thomas 1971-4-25 15790 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4293  Phoradendron serotinum subsp. tomentosum John H. Thomas 1975-1-14 17674 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-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
  JROH3723  Physocarpus capitatus John H. Thomas 1975-6-5 17928 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near lowflow crossing Comment
  POM20258  Pickeringia montana var. montana C. F. Baker 1902-5-10 802 San Mateo Kings Mountain. Comment
  SEINET11809971  Picris echioides E. A. Purer 1933-1 5417 San Mateo Belmont Comment
  CAS-BOT-BC78643  Pinus halepensis Elizabeth McClintock 1989-3-1 s.n. San Mateo Brisbane, above Crocker Industrial Park Comment
  JROH119  Pinus radiata John H. Thomas 1977-4-15 18531 San Mateo Jasper Ridge Biological Preserve, Stanford University 118 Comment
  CAS-BOT-BC158326  Piperia Peter Rubtzoff; Randall Morgan 1987-8-28 9847 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC136531  Piperia candida A. D. E. Elmer 1903-8-1 5058 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC137318  Piperia elegans Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC137320  Piperia elegans Phillip Wheeler 1965-8-16 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  RSA18516  Piperia transversa Carl B. Wolf 1927-7-14 603 San Mateo Summit of Kings Mountain Rd. Comment
  CAS-BOT-BC228134  Plagiobothrys chorisianus Edward Lee Greene 1886-5-10 s.n. San Mateo Belmont Comment
  CAS-BOT-BC228142  Plagiobothrys chorisianus Alice Eastwood; John Thomas Howell 1938-6-26 6068 San Mateo Pigeon Point Comment
  POM64748  Plagiobothrys chorisianus C. F. Baker 1902-3-30 429 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC228121  Plagiobothrys chorisianus David D. Keck 1938-5-30 4728 San Mateo Pescadero, on bluffs overlooking ocean Comment
  CAS-BOT-BC228124  Plagiobothrys chorisianus Roxana S. Ferris 1921-4-7 2136 San Mateo San Bruno Mountain 30 Comment
  CAS-BOT-BC228131  Plagiobothrys chorisianus Walter & Irja Knight 1965-5-9 1100 San Mateo San Bruno Mountains. Devil's Arroyo Comment
  CAS-BOT-BC228156  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1896-4-17 s.n. San Mateo The Santa Cruz Mountain Peninsula. Pasture near Pebble Beach, Pescadero Comment
  SJSU16034  Plagiobothrys chorisianus var. chorisianus Toni Corelli, John Rawlings 2016-4-29 1770 San Mateo Cascade Field along Atkinson Bluff Trail, north of Cascade Cr. Trail, in Ano Nuevo State Park 11 Comment
  CAS-BOT-BC228171  Plagiobothrys chorisianus var. hickmanii Class Collection 1940-1-1 s.n. San Mateo Between Pescadero and Ano Nuevo Point Comment
  JROH1416  Plagiobothrys chorisianus var. hickmanii John Hunter Thomas 1982-4-30 20882 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
  JROH1424  Plagiobothrys nothofulvus John H. Thomas 1969-4-12 14879 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH1430  Plagiobothrys nothofulvus John Hunter Thomas 1988-4-7 24378 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC389766  Plagiobothrys tenellus R. D. Hennessey 1964-4-26 s.n. San Mateo Area where Pilarcitos Creek empties into ocean Comment
  UC24576  Plagiobothrys undulatus J. Burtt Davy Jun 21 1893-Jun 23 1893 1143 San Mateo Pilarcitos Lake and Canyon Pilarcitos Canyon, Pilarcitos Lake Comment
  CDA6602  Plantago coronopus D. G. Kelch 2002-5-13 s.n. San Mateo Highway 92 at Quarry gate. Comment
  JROH3107  Plantago erecta John H. Thomas 1955-5-6 5006 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  JROH3108  Plantago erecta John H. Thomas 1956-4-7 5616 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  JROH3111  Plantago erecta John H. Thomas 1974-4-4 17084 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA402012B  Plantago hirtella E. S. Spalding 1924-6-28 s.n. San Mateo Moss Beach. Comment
  RSA176677  Plantago lanceolata John H. Thomas 1949-4-6 273 San Mateo 4 miles S of Daly city Comment
  UCD124581  Plantago lanceolata J. Doty 1969-3-26 597 San Mateo 100 yards east of the junction of State Highways 35 and 92, near summit of Coast Range. Comment
  JROH3137  Plantago major John Hunter Thomas 1981-9-24 20752 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3132  Plantago major John H. Thomas 1959-8-22 8082 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA19306  Plantago maritima L. S. Rose 1937-9-5 37645 San Mateo Mussel Rocks 61 Comment
  UC888462  Plantago maritima var. californica Lewis S. Rose 1937-9-5 37645 San Mateo Mussel Rocks 60 Comment
  UC931954  Plantago maritima var. californica Verne Grant and Alva Grant 1946-6-23 7696 San Mateo s of Daly City; San Francisco Peninsula Comment
  CAS-BOT-BC136639  Platanthera Donald A. Johansen 1932-5-21 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  SD27817  Platanthera dilatata var. leucostachys Carl B. Wolf 1929-5-25 3728 San Mateo Pebble Beach, south of Pescadero. Comment
  CAS-BOT-BC92017  Platystemon californicus Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountain. Colma Canyon. Comment
  JROH5922  Plectritis congesta subsp. brachystemon H. J. Dengler 1964-3-29 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Grass island Comment
  JEPS20199  Plectritis macrocera L. R. Abrams 1904-4-10 San Mateo on road from Woodside to Crystal Springs (Santa Cruz Mountain Peninsula); Santa Cruz Mountain Peninsula 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
  CAS-BOT-BC254543  Poa douglasii Elizabeth McClintock 1978-4-6 s.n. San Mateo Pacifica Comment
  JROH5410  Poa howellii John Rawlings 2012-5-1 1115 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Trail 9 162 Comment
  CAS-BOT-BC255782  Poa infirma Walter Knight; Irja Knight 1967-5-16 s.n. San Mateo Randolph Ave., South San Francisco, San Bruno Mountain Comment
  CAS-BOT-BC243112  Poa secunda subsp. secunda Ned Cahill 1974-4-29 179 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles W from Redwood City Comment
  CAS-BOT-BC244245  Poa unilateralis G. L. Stebbins, Jr. 1943-4-8 3349 San Mateo San Bruno Hills, 1 mile E of Daly City Comment
  CAS-BOT-BC232895  Polemonium carneum L. R. Abrams 1916-4-22 5576 San Mateo Santa Cruz Mountain Peninsula. Pilarcitos Canon Comment
  RSA120735  Polygala californica S. S. Tillett, I. Sternback 1956-6-24 531 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  UC1481762  Polygonum C. C. Hall 1922-5-17 108 -7 San Mateo Montara Comment
  UCR66525  Polygonum amphibium Lyman Benson 1932-7-11 3930 San Mateo Santa Cruz Range, Stanford University. San Francisquito Creek. 62 Comment
  UC168661  Polygonum amphibium var. emersum C. F. Baker 1902-10-20 1835 San Mateo Searsville Comment
  CDA2829  Polygonum arenastrum Buchanan 1960-4-28 4107 San Mateo Harbor Blvd. & Freeway, Redwood City. 0 Comment
  CAS-BOT-BC414108  Polygonum aviculare subsp. aviculare Philip C. Wheeler 1965-5-17 s.n. San Mateo San Bruno Mountain. Area in Crocker Hills adjacent to Cow Palace Comment
  OBI37074  Polygonum aviculare subsp. depressum M. J. Erwin 1983-11-11 20 San Mateo Daggett residence, 100 yds W of Old Canada Rd, within proeprty limits of Filoli Center, Canada Rd Comment
  RSA10408  Polygonum coccineum Carl B. Wolf 1927-6-15 2166 San Mateo Along Skyline Drive, 8 mi. S of San Francisco. Comment
  POM312912  Polygonum lapathifolium H. L. Mason 1927-10-4 4133 San Mateo Mouth of Waddell creek, Ano Nuevo Point. Comment
  UC1101144  Polygonum lapathifolium Herbert L. Mason and Verne Grant 1946-8-28 13089 San Mateo s San Francisco (pond on Santa Cruz-Daly City Road #5) Comment
  CAS-BOT-BC109236  Polygonum paronychia John H. Thomas 1954-6-11 4285 San Mateo About 0.25 mile north of Pigeon Point Light House along low coastal bluffs. Comment
  CAS-BOT-BC109245  Polygonum paronychia David D. Keck 1931-10-5 1288 San Mateo 1 mile north of Salada Beach. 200 m. from ocean. Comment
  UC42913  Polypodium J. Burtt Davy 1893-6-22 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC76915  Polypodium californicum J. H. Thomas 1949-3-29 197 San Mateo King's Mountain. Comment
  POM22457  Polypodium californicum C. F. Baker 1902-1-15 235 San Mateo West side of King s Mountain Comment
  CAS-BOT-BC76906  Polypodium californicum W. R. Dudley 1903-3-10 s.n. San Mateo Santa Cruz Mountain Peninsula - near Pedro Pt. and near sea. Comment
  CAS-BOT-BC76949  Polypodium californicum Elizabeth McClintock 1963-2-16 s.n. San Mateo San Bruno Mountain Comment
  UCSC007770  Polypodium californicum Becky Hendricks, Shayne Coppedge 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC72063  Polypodium calirhiza Lewis S. Rose 1964-2-6 64001 San Mateo Kings Mountain 609 Comment
  UC766795  Polypodium calirhiza R. F. Hoover 1941-2-12 4759 San Mateo La Honda Creek above La Honda Comment
  CAS-BOT-BC72062  Polypodium calirhiza Ira L. Wiggins 1939-11-5 s.n. San Mateo Corte Madera Creek about 1/2 mile below the Rolph Place Comment
  CAS-BOT-BC76804  Polypodium glycyrrhiza W. R. Dudley 1898-3-5 s.n. San Mateo Santa Cruz Peninsula - King's Mountain Comment
  JEPS79496  Polypodium glycyrrhiza Edward Lee with A. Carter, E. Crum, and C. Belshaw 1936-1-26 1721 San Mateo 2.6 mi out of Woodside (e side Cahill Ridge, Kings Mt. Rd.) Comment
  UCD164005  Polypodium scouleri Peter Rubtzoff 1977-11-24 9143 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  JROH5436  Polypogon interruptus W. Lennihan 1989-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito creek -- above low-flow causeway on left, under trees in rocks. 81 Comment
  UC39742  Polypogon interruptus Michener and Bioletti 1893-6-20 133 San Mateo L. Pilarcitos Comment
  CAS-BOT-BC233150  Polypogon interruptus L. R. Abrams 1927-7-15 12190 San Mateo Skyline Blvd back of South San Francisco Comment
  JROH5457  Polypogon monspeliensis W. Lennihan 1989-5-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By San Francisquito creek, to left of Whiskey Hill (low-flow) causeway. Comment
  RSA101028  Polypogon monspeliensis G. Oberlander 1949-7-24 312 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve. Comment
  UC1100390  Polypogon monspeliensis Herbert L. Mason and Verne Grant 1946-8-28 13094 San Mateo pond on Highway 5 about 3 mi s Daly City Road Comment
  UCD91350  Polypogon monspeliensis Herbert L. Mason; Verne Grant 1946-8-28 13094 San Mateo On Highway 5, about 3 miles south of Daly City Road. Comment
  JROH4816  Polypogon viridis John Hunter Thomas 1982-7-2 21050 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing. Comment
  JROH4822  Polypogon viridis John Rawlings 2011-8-2 1081 San Mateo Jasper Ridge Biological Preserve, Stanford University. Bed of San Francisquito Creek near Dennis Martin site. 71 Comment
  JROH5544  Polypogon viridis John Rawlings 2012-5-23 1111 San Mateo Jasper Ridge Biological Preserve, Stanford University. 106 Comment
  CAS-BOT-BC6609  Polystichum dudleyi W. R. Dudley 1903-5-2 s.n. San Mateo Near bridge, Peter's Creek, Santa Cruz Mts. Comment
  CAS-BOT-BC72224  Polystichum dudleyi Brannan; Kellogg 1870-5-31 s.n. San Mateo San Gregorio Redwoods Comment
  JROH44  Polystichum dudleyi Herbert Dengler 1961-6-25 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek about 100' below tiger lily site Comment
  JROH51  Polystichum dudleyi Ann Lambrecht 2005-10-26 22 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Trail 2 on creek bank 60 m beyond first drainage past intersection of Trails 1 & 5. Comment
  CAS-BOT-BC76607  Polystichum munitum C. F. Baker 1902-1-15 321 San Mateo West side King's Mountain Comment
  CHSC39836  Polystichum munitum Maxey-Jones 1928-4-21 San Mateo La Honda Redwoods. Comment
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Jul 7 2010
  CAS-BOT-BC166964  Polystichum munitum Peter Rubtzoff 1976-10-5 8905 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
  POM217107  Polystichum munitum D. D. Keck 1932-2-12 1360 San Mateo La Honda Road, east slope of Coast Range above Searsville Lake 305 Comment
  CAS-BOT-BC105564  Populus trichocarpa J. Ed. McClellan; Bonnie McClellan 1976-3-24 s.n. San Mateo Pilarcitos Creek (west of the Coast Highway) at Half Moon Bay Comment
  UC519205  Potamogeton illinoensis N. L. Gardner 1933-9-24 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC453733  Potamogeton illinoensis W. Bryan Duncan 1924-7-1 s.n. San Mateo Felt Lake near Stanford University Comment
  SEINET3825842  Potamogeton lucens N. L. Gardner 1933-9-24 San Mateo Crystal Springs Lake Comment
  SEINET11665020  Potamogeton nodosus H. L. Mason 1921-5-28 s.n. San Mateo back of New Years Pt Comment
  CAS-BOT-BC454003  Potamogeton pectinatus W. R. Dudley 1909-10-31 s.n. San Mateo Santa Cruz Mountain Peninsula. Menlo Park Reservoir Comment
  CAS-BOT-BC454050  Potamogeton pusillus subsp. pusillus W. R. Dudley 1909-10-10 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Club House, Crystal Springs Reservoir Comment
  CAS-BOT-BC141932  Potentilla anserina subsp. pacifica David D. Keck 1934-7-7 2969 San Mateo Ano Nuevo Point at Ano Nuevo Creek Comment
  CHSC56585  Potentilla anserina subsp. pacifica Steven Triano 1988-5-24 211 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  JEPS44178  Potentilla anserina subsp. pacifica Adele Lewis Grant 1917-5-6 941 San Mateo Pebble Beach nr Pescadero; Pebble Beach nr Pescadero Comment
  SD37699  Potentilla glandulosa Edith A. Purer 1933-5-10 3629 San Mateo Steven's Creek Comment
  CAS-BOT-BC516346  Prosartes hookeri D. D. Davis 1903-5-2 s.n. San Mateo Near La Honda, Santa Cruz Peninsula Comment
  CAS-BOT-BC516352  Prosartes hookeri C. F. Baker 1903-4-1 5052 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC516361  Prosartes hookeri Elizabeth McClintock 1965-3-28 s.n. San Mateo Devil's Arroyo, San Bruno Mountain Comment
  CAS-BOT-BC517397  Prosartes smithii H. L. Mason 1917-4-1 s.n. San Mateo Kings Mountain Comment
  POM63307  Prunella vulgaris var. lanceolata A. D. E. Elmer 1903-06 4206 San Mateo Crystal Springs Lake. Comment
  POM139632  Prunus A. D. E. Elmer 1903-07 4773 San Mateo Pilarcitos Stone Dam. Comment
  CAS-BOT-BC154498  Prunus ilicifolia George Oberlander 1949-8-20 388 San Mateo Sweeney Ridge Comment
  CAS-BOT-BC154500  Prunus ilicifolia J. H. Thomas 1954-5-28 4239 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  POM140358  Prunus subcordata L. R. Abrams 1901-03 1168 San Mateo Portola, Los Troncos Creek. Comment
  CAS-BOT-BC156361  Prunus virginiana var. demissa George Oberlander 1949-6-25 245 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC356471  Pseudognaphalium beneolens Josephine D. Randall 1907-7-28 76 San Mateo Santa Cruz Peninsula. Black Mt. Road near Iverson's 335 Comment
  CAS-BOT-BC356474  Pseudognaphalium beneolens Helen D. Geis 1901-9-26 s.n. San Mateo Roadside to Spanishtown [Spanish Town] Comment
  CAS-BOT-BC356870  Pseudognaphalium californicum R. E. Frenkel 1963-12-7 335 San Mateo San Francisco Water District, Whiting Ridge Road, ca. 0.8 mile south-west of Spring Valley Road, at Fire Warden's Gate Comment
  JROH755  Pseudognaphalium californicum John H. Thomas 1961-6-7 9534 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH758  Pseudognaphalium californicum John H. Thomas 1971-5-30 15971 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC356867  Pseudognaphalium californicum Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain. East facing slope below parking lot 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
  CAS-BOT-BC357116  Pseudognaphalium luteoalbum John H. Thomas 1963-5-8 10064 San Mateo San Bruno Mountain in northern part of county 396 Comment
  SBBG45074  Pseudognaphalium luteoalbum F. T. Howell 1935-1-13 12578 San Mateo Lake San Andreas Comment
  CAS-BOT-BC344867  Pseudognaphalium luteoalbum Peter Rubtzoff; Roman Gankin 1975-5-21 7978 San Mateo Pond northwest of and across old Guadalupe Road from Saddle area (which is located on north side of Guadalupe Canyon Parkway west of Radio Road Junction), San Bruno Mountains. Comment
  JROH782  Pseudognaphalium luteoalbum John Hunter Thomas 1980-11-27 20184 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  CAS-BOT-BC357508  Pseudognaphalium ramosissimum Janet Jones 1978-8-28 s.n. San Mateo Near Montara Comment
  CAS-BOT-BC361572  Pseudognaphalium stramineum Louis F. Pitelka 1973-6-16 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  JROH808  Pseudognaphalium stramineum John Hunter Thomas 1977-6-16 18780 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD27753  Pseudognaphalium stramineum Carl B. Wolf 1927-6-29 563 San Mateo South of Pescadero at Pebble Beach Comment
  CAS-BOT-BC361566  Pseudognaphalium stramineum Phillip Wheeler 1965-5-17 s.n. San Mateo San Bruno Mountain. Cow Palace area Comment
  CAS-BOT-BC361573  Pseudognaphalium stramineum Saichi Kawahara 1968-6-15 437 San Mateo Pescadero Beach, 150 yards south of mouth of Pescadero Creek, Highway 1 4 Comment
  CAS-BOT-BC85915  Pseudotsuga menziesii Miss O. Boring 1897-8-31 s.n. San Mateo Santa Cruz Peninsula, King's Mt. Comment
  JROH1176  Psilocarphus tenellus John H. Thomas 1955-5-6 5001 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1185  Psilocarphus tenellus John Hunter Thomas 1978-4-25 19146 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1193  Psilocarphus tenellus John Hunter Thomas 1989-5-9 24711 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC474203  Pteridium aquilinum var. pubescens H. F. Copeland 1920-5-18 174 San Mateo King's Mt Comment
  JROH3289  Pterostegia drymarioides John H. Thomas 1976-4-19 18082 San Mateo Jasper Ridge Biological Preserve, Stanford University. Knoll to west of dam. Comment
  JEPS21656  Pyrrocoma racemosa var. racemosa S. D. Halsey 1908-9-15 San Mateo Slough near Cooleys Landing, near Palo Alto. Comment
  CAS-BOT-BC61706  Quercus agrifolia Elizabeth McClintock; Walter Knight; Irja Knight 1964-9-11 s.n. San Mateo Point San Bruno. On bluff near shoreline, San Bruno Mountain Comment
  UC1135331  Quercus agrifolia C. M. Belshaw 1935-1-25 1457 San Mateo 2.8 mi w Woodside (on King Mt Road); Santa Cruz Quad. 457 Comment
  UCD45078  Quercus agrifolia Jonh M. Tucker 1994-9-9 s.n. San Mateo Tree ca. 35 ft. tall and 12' dbh. Huddart Park. San Mateo County Comment
  UCD45132  Quercus agrifolia Edmond W. Holm 1993-10-20 s.n. San Mateo California, San Mateo Co.; Huddart Park, near Sequoia Picnic Area; on an east-facing slope, with redwoods and bay trees nearby; tree 15-18 ft. tal, with 2 trunks. Comment
  JROH2461  Quercus agrifolia var. agrifolia John H. Thomas 1971-4-25 15790 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC62306  Quercus chrysolepis William R. Dudley 1893-1-1 s.n. San Mateo Near Searsville (Bear G. Road) [Bear Gulch Road - San Mateo Co.?] Comment
  JROH2473  Quercus douglasii John Hunter Thomas 1981-4-27 20505 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET13953265 Image available Quercus durata Lewis S. Rose 1950-1 50136 San Mateo Emerald Lake region; hills w. of Redwood City; alt. ca. 800 ft. 244 Comment
  JROH2481  Quercus durata var. durata John H. Thomas 1968-5-22 14458 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD45969  Quercus durata var. durata Lewis S. Rose 1964-9-5 64068 San Mateo Emerald Lake, W. of Redwood City. Alt. ca. 800 ft. 243 Comment
  CAS-BOT-BC134780  Quercus wislizeni W. R. Dudley s.n. San Mateo Santa Cruz Peninsula. By road from Pilarcitos Lake to San Andreas Lake Comment
  UC762353  Quercus wislizeni Robert F. Hoover 1941-2-12 4757 San Mateo above La Honda; La Honda Creek Comment
  UCD47590  Quercus wislizeni John M. Tucker 1994-9-9 s.n. San Mateo Huddart Park, San Mateo County. Comment
  CAS-BOT-BC378548  Ranunculus californicus var. californicus Ira L. Wiggins 1941-4-17 9719 San Mateo Roadside near junction of road to California Sanitarium and Woodside-Half Moon Bay road 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-BC378544  Ranunculus californicus var. californicus John H. Thomas 1969-4-30 15032 San Mateo serpentine near Canada College, Redwood City, just off of Farm Hill Blvd Comment
  RSA120769  Ranunculus californicus var. cuneatus S. S. Tillett, I. Sternback 1956-6-24 537 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  CAS-BOT-BC83421  Ranunculus lobbii Roxana S. Ferris 1918-3-31 758 San Mateo Coal Mine Ridge. Comment
  UCD97310  Ranunculus trilobus Phil Greer 2002-4-17 s.n. San Mateo Hwy 101, in Half Moon Bay. Comment
  JROH3502  Ranunculus uncinatus John Rawlings 2013-4-16 1144 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 1. 79 Comment
  CAS-BOT-BC74196  Raphanus raphanistrum E. H. Quayle 1920-5-1 s.n. San Mateo Lomitas School near Menlo Park. Comment
  CAS-BOT-BC74337  Raphanus sativus Elizabeth McClintock; Walter Knight; Irja Knight 1963-9-2 s.n. San Mateo San Bruno Mountains. Ridge above Brisbane. Comment
  OBI27163  Raphanus sativus Laura Wells 1970-2-1 8 San Mateo Half Moon Bay about 14 mi W of San Mateo Comment
  UCD115166  Raphanus sativus L. Angst 1917-4-21 14 San Mateo south of San Francisco. Comment
  POM283034  Rhamnus californica Lyman Benson 1937-7-8 8447 San Mateo Lake Searsville, Stanford, Mt. Range: Santa Cruz; Watershed: San Francisco Bay 122 Comment
  POM283043  Rhamnus californica Lyman Benson 1928-12-4 770 San Mateo Lake Searsville, Stanford, Santa Cruz, San Francisco Bay 152 Comment
  RSA100994  Rhamnus californica G. Oberlander 1949-7-30 246 San Mateo Crest of Sweeney Ridge, San Francisco Watershed reserve Comment
  UC202778  Rhamnus californica subsp. californica A. D. E. Elmer Jul 1901 4772 San Mateo Pilarcitos Stone Dam Comment
  UC33635  Rhamnus californica subsp. californica Jos. Burtt Davy 1893-6-22 841 San Mateo Lake Pilarcitos Comment
  JROH3556  Rhamnus crocea H. L. Mason 1921-3-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5728  Rhamnus crocea John Rawlings 2015-3-3 1306 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 8 twenty-five yards south of Trail 7 intersection. 134 Comment
  POM243722  Rhamnus crocea Carl B. Wolf 1928-3-16 1540 San Mateo Jasper ridge, near Searsville Lake Comment
  CAS-BOT-BC305855  Rhodanthe chlorocephala subsp. rosea Elizabeth McClintock; Paul Reeberg 1988-10-3 s.n. San Mateo San Bruno Mountains. On north-facing slope of Bitter Cherry Ridge 167 Comment
  RSA121957  Rhododendron macrophyllum N. K. Carlson 1935-7-2 112 San Mateo 5 miles south of Bellvale. 305 Comment
  CAS-BOT-BC56672  Rhododendron occidentale W. R. Dudley 1895-6-6 s.n. San Mateo Near Iverson's on Upper Pescadero Creek Comment
  CAS-BOT-BC56664  Rhododendron occidentale William R. Dudley 1893-5-15 s.n. San Mateo near Big Trees Felton Comment
  UC311182  Ribes aureum A. D. E. Elmer May, 1903 4514 San Mateo Portola Comment
  SEINET12215220  Ribes aureum var. gracillimum Cummings, McCallum, G. A. 1933-1 s.n. San Mateo Stevens Creek Comment
  RSA44518  Ribes californicum L. S. Rose 1949-3-18 49007 San Mateo Hills west of Belmont. 91 Comment
  CAS-BOT-BC92999  Ribes californicum var. californicum Lewis S. Rose 1949-3-18 49007 San Mateo Hillsides west of Belmont. 91 Comment
  JROH2636  Ribes californicum var. californicum John H. Thomas 1959-2-23 7518 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD102242  Ribes divaricatum Lewis S. Rose 1965-3-16 65008 San Mateo Searsville Lake. 121 Comment
  JROH2652  Ribes divaricatum var. pubiflorum D. E. Breedlove 1971-5-31 19355 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH2657  Ribes divaricatum var. pubiflorum John Hunter Thomas 1992-4-7 25132 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway. Comment
  CAS-BOT-BC173092  Ribes divaricatum var. pubiflorum Roxana S. Ferris 1920-4-24 1956 San Mateo Peters Creek, 2 mi above ridge 304 Comment
  CAS-BOT-BC173463  Ribes malvaceum James Roof; Walter Knight; Irja Knight 1967-7-16 2072 San Mateo On north side of ridge road adjacent to Owl's Canyon 304 Comment
  CAS-BOT-BC173476  Ribes malvaceum W. R. Dudley 1893-1-1 s.n. San Mateo Near Belmont 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
  RSA0021677  Ribes malvaceum G. Oberlander 1949-2-2 5 San Mateo Crest of Sweeney Ridge, San Francisco Watershed Reserve. Comment
  JROH2664  Ribes malvaceum var. malvaceum John H. Thomas 1968-2-11 14146 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC212809  Ribes menziesii A. D. E. Elmer 1903-4-1 4496 San Mateo Portola Comment
  CAS-BOT-BC212810  Ribes menziesii Adoph Holme 1929-4-1 s.n. San Mateo Berenda Farm near Redwood City Comment
  CAS-BOT-BC212821  Ribes menziesii W. R. Dudley 1894-7-7 s.n. San Mateo Top Bear Gulch Rd Comment
  CAS-BOT-BC212828  Ribes menziesii Peter H. Raven 1952-4-6 3984 San Mateo 1 mile s. of Sharp Park Comment
  CAS-BOT-BC212831  Ribes menziesii George Oberlander 1950-4-23 822 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC212838  Ribes menziesii W. R. Dudley 1893-4-1 s.n. San Mateo Near San Francisquito Creek above Searsville Resevoir Comment
  CAS-BOT-BC212843  Ribes menziesii D. E. Breedlove 1974-5-13 36202 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  UC11716  Ribes menziesii J. Burtt Davy Jun 21 1893-Jun 23 1893 1148 San Mateo Pilarcitos Lake and Canyon Comment
  UC202789  Ribes menziesii A. D. E. Elmer April, 1903 4496 San Mateo Portola Comment
  SEINET13942784 Image available Ribes sanguineum Lewis S. Rose 1955-1 55041 San Mateo Kings Mountain, alt 2000 ft 610 Comment
  CAS-BOT-BC144633  Ribes sanguineum var. glutinosum C. F. Baker 1902-1-15 241 San Mateo West side of King's Mt. Comment
  CAS-BOT-BC144648  Ribes sanguineum var. glutinosum Reed C. Rollins 1941-2-22 2936 San Mateo wooded slope, Coast Range, about 10 miles northwest of Palo Alto 152 Comment
  JEPS23909  Ribes sanguineum var. glutinosum Le Roy Abrams 1902-4-13 2333 San Mateo Crystal Springs Comment
  JROH2682  Ribes sanguineum var. glutinosum John Hunter Thomas 1983-4-21 21645 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along causeway. Comment
  UC306757  Ribes sanguineum var. glutinosum A. D. E. Elmer March 1903 4470 San Mateo Portola Comment
  CAS-BOT-BC144644  Ribes sanguineum var. glutinosum Reed C. Rollins 1941-3-16 2945 San Mateo dry ravine, west slope of the Santa Cruz Mts., about 35 miles south of San Francisco Comment
  CAS-BOT-BC207159  Ricinus communis John H. Thomas 1967-5-25 11637 San Mateo Menlo Park, near Southern Pacific train station. Comment
  CAS-BOT-BC341024  Robinia pseudoacacia J. H. Thomas 1960-6-8 8774 San Mateo Road bank between Stanford and Searsville Lake along Sand Hill Road Comment
  JROH2206  Robinia pseudoacacia Toni Corelli & Ann Lambrecht 2007-4-25 333 San Mateo Jasper Ridge Biological Preserve, Stanford University; caretakers residence 106 Comment
  JEPS25747  Romanzoffia californica L. R. Heckard with R. Bacigalupi 1961-5-14 1232 San Mateo ca. 2 mi. s. Pilarcitos Reservoir (near Stone Dam Reservoir, along Pilarcitos Creek); Pilarcitos Creek 182 Comment
  RSA0003889  Romanzoffia californica C. F. Baker 1902-4-6 s.n. San Mateo Crystal Springs Lake. Comment
  JEPS125913  Romulea rosea var. australis Dean W. Taylor 2002-3-20 17952 San Mateo Franklin Point, along path to the coastal bluff from the parking area on Hwy 1. Comment
  CAS-BOT-BC146692  Rosa gymnocarpa Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Romanzoffia Ravine Comment
  CAS-BOT-BC146693  Rosa gymnocarpa James B. Roof 1965-4-25 s.n. San Mateo Head of Owl's Canyon on ridge Comment
  CAS-BOT-BC389723  Rosa gymnocarpa M. K. Wicksten 1971-6-24 127 San Mateo Huddart Pk. Comment
  JROH3759  Rosa gymnocarpa var. gymnocarpa John H. Thomas 1974-6-27 17448 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3769  Rubus armeniacus John Hunter Thomas 1982-11-6 21215 San Mateo Jasper Ridge Biological Preserve, Stanford University. On causeway Comment
  CAS-BOT-BC156648  Rubus bifrons Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Colma Canyon Comment
  CAS-BOT-BC152868  Rubus parviflorus Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Romanzoffia ravine - San Bruno Mountain Comment
  CAS-BOT-BC152875  Rubus parviflorus R. Hoffough 1929-5-11 s.n. San Mateo La Honda Road Comment
  JROH3772  Rubus parviflorus John H. Thomas 1973-5-5 16763 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  SJSU10442  Rubus spectabilis C. R. Schafer 1967-5-7 San Mateo Gazos Cr, Gazos Cr Rd, Big Basin State Park Comment
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Dec 7 2010
  CAS-BOT-BC157077  Rubus ursinus L. R. Abrams 1914-10-14 5131 San Mateo Tunitas [Canon] Canyon Comment
  CAS-BOT-BC157079  Rubus ursinus L. R. Abrams 1914-10-14 5133 San Mateo Tunitas [Canon] Canyon Comment
  CAS-BOT-BC157081  Rubus ursinus L. R. Abrams 1914-10-14 5135 San Mateo Tunitas Comment
  CAS-BOT-BC157084  Rubus ursinus C. F. B. 1902-1-15 246 San Mateo West side King's Mountain Comment
  CAS-BOT-BC157096  Rubus ursinus George Oberlander 1949-4-9 25 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC157102  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6050 San Mateo Montara Mt. above Pt. San Pedro Comment
  CAS-BOT-BC157103  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6050 San Mateo Montara Mt. above Pt. San Pedro Comment
  JROH3777  Rubus ursinus W. R. Dudley 1898-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3778  Rubus ursinus W. R. Dudley 1898-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA208241  Rubus ursinus John Thomas Howell; 1938-6-4 13888 San Mateo San Francisco Bay, Burlingame Comment
  UC204056  Rubus ursinus A. D. E. Elmer June, 1903 4664 San Mateo Crystal Springs Lake southern end Comment
  POM139627  Rubus vitifolius A. D. E. Elmer 1903-06 4664 San Mateo Crystal Springs Lake. Comment
  JEPS121489  Rumex acetosella Adam C. Schneider with C. Matt Guilliams 2013-3-9 31 San Mateo Crystal Springs Reservoir 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
  JROH3301  Rumex conglomeratus John Hunter Thomas 1982-6-7 21030 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC433367  Rumex crispus A. D. E. Elmer 1903-6-1 4276 San Mateo San Mateo Comment
  CAS-BOT-BC433708  Rumex occidentalis W. R. Dudley 1894-5-1 s.n. San Mateo Santa Cruz Peninsula. Near San Mateo. Comment
  CAS-BOT-BC433825  Rumex pulcher John H. Thomas 1961-5-7 9293 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  UC202769  Rumex pulcher A. D. E. Elmer Jul 1903 4778 San Mateo Pilarcitos Stone Dam Comment
  CAS-BOT-BC433819  Rumex pulcher A. D. E. Elmer 1903-7-1 4778 San Mateo Pilarcitos Stone Dam Comment
  CAS-BOT-BC434132  Rumex transitorius Alice Eastwood; John Thomas Howell 1938-6-26 6061 San Mateo Near Pescadero Comment
  CAS-BOT-BC434133  Rumex transitorius Goodman 1918-7-23 s.n. San Mateo San Pedro Valley Comment
  HSC23969  Rupertia physodes Mary Katherine Wicksten 1971-6-24 111 San Mateo Huddart Park, near entrance Comment
  JROH2210  Rupertia physodes John H. Thomas 1961-5-5 9218 San Mateo Jasper Ridge Biological Preserve, Stanford University; at NW end of ridge 152 Comment
  CAS-BOT-BC454179  Ruppia maritima W. R. Dudley 1908-9-1 s.n. San Mateo Laguna Salada 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
  UCR121549  Ruta chalepensis George K. Helmkamp, E. A. Helmkamp 1999-6-28 5003 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  UC1191408  Salicornia europaea Malcolm A. Nobs and S. Galen Smith 1949-8-27 1624 San Mateo e of Redwood City Comment
  SJSU7513  Salix exigua Lewis S. Rose 1965-3-8 San Mateo Searsville Lake 121 Comment
  JROH3849  Salix exigua var. hindsiana John Hunter Thomas 1985-4-25 23558 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway Comment
  CAS-BOT-BC107857  Salix gooddingii W. R. Dudley 1902-9-21 s.n. San Mateo Causeway over Crystal Springs Lake - Santa Cruz Peninsula Comment
  LA208828  Salix lasiandra David D. Keck; 1932-3-6 1392 San Mateo Searsville Lake Comment
  CAS-BOT-BC125375  Salix lasiandra var. lasiandra Josephine D. Randall 1908-3-28 s.n. San Mateo Kings Mt. Road Comment
  CAS-BOT-BC125380  Salix lasiandra var. lasiandra J. Ed. McClellan; Bonnie McClellan 1976-4-1 s.n. San Mateo Princeton Comment
  JROH3880  Salix lasiandra var. lasiandra John Hunter Thomas 1985-4-25 23557 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway Comment
  JROH3860  Salix lasiolepis W. R. Dudley 1903-4-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Wild Plum Canyon, Searsville Ridge Comment
  RSA176658  Salix lasiolepis Peter H. Raven 1964-2-16 18742 San Mateo Just south of Lake San Andreas. Comment
  RSA249478  Salix lasiolepis John F. Emmel 1972-6-4 404 San Mateo Large canyon bottom 1.1 air miles NW of 1314' summit. Along Guadalupe Canyon Parkway. San Bruno Mtns. 107 Comment
  RSA788839  Salix lasiolepis Peter Rubtzoff 1976-3-14 8445 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
  SD60177  Salix lasiolepis L. R. Abrams 1915-3-13 5161 San Mateo Near junction of San Francisquito and Los Trancos creeks, about 2 miles from Stanford University Comment
  UC481897  Salix lasiolepis C. R. Ball and G. W. Hendry 1931-2-22 15 San Mateo in arroyo near San Gregorio Creek (100 m from ocean); San Gregorio Comment
  UC481898  Salix lasiolepis C. R. Ball and G. W. Hendry 1931-2-22 15 San Mateo in arroyo near San Gregorio Creek (100 m from ocean); San Gregorio Comment
  UCD111654  Salix lasiolepis Lewis S. Rose 1965-3-8 65004 San Mateo Searsville Lake. 121 Comment
  UCSC007752  Salix lasiolepis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC124487  Salix lasiolepis var. lasiolepis George Oberlander 1950-3-18 949 San Mateo San Andreas Lake Comment
  SBBG1241  Salix lucida subsp. lasiandra J. W. Congdon -Aug-1897 San Mateo Pescadero Comment
  UCR142837  Salix scouleriana L. S. Rose 1934-2-10 34025 San Mateo Coast Range, Skyline Blvd. 4 miles south of Kings Mountain 701 Comment
  CAS-BOT-BC126486  Salix sitchensis Walter Knight; Irja Knight 1965-2-28 866 San Mateo San Bruno Mt., in Colma Canyon Comment
  CAS-BOT-BC126491  Salix sitchensis A. D. E. Elmer 1903-5-1 4917 San Mateo Portola Comment
  CAS-BOT-BC126494  Salix sitchensis L. S. Rose 1932-1-23 3217 San Mateo Arroyos, Moss Beach Comment
  CAS-BOT-BC126517  Salix sitchensis W. R. Dudley 1900-3-17 s.n. San Mateo Below Pilar Point Comment
  CAS-BOT-BC126519  Salix sitchensis W. R. Dudley 1898-4-24 s.n. San Mateo El Corte de Madera Creek Comment
  RSA788843  Salix sitchensis Peter Rubtzoff 1975-10-11 8426 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC180792  Salsola soda William Anderson 1968-8-16 s.n. San Mateo Edge of salt marsh just above high tide line, west end of Dumbarton Bridge Comment
  RSA681668  Salvia sonomensis Annuschka Deb 1989-4-14 108 San Mateo YBN Demonstration Garden, Woodside, CA Comment
  RSA120031  Sambucus mexicana Paul R. Hichborn 1920-4-22 s.n. San Mateo Tasper Ridge Comment
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Oct 12 2021
  RSA176527  Sambucus mexicana John H. Thomas 1963-6-23 10171 San Mateo Jasper Ridge Biological Experimental Area, about 5 mi SW of Palo Alto. Along road at Westridge end of ridge Comment
  CAS-BOT-BC246021  Sambucus nigra subsp. caerulea Phillip C. Wheeler 1965-5-12 s.n. San Mateo Ravine at Sierra Point, San Bruno Mountain Comment
  CAS-BOT-BC246024  Sambucus nigra subsp. caerulea Daniel Cohen 1953-6-3 107 San Mateo Los Trancos Woods Comment
  CAS-BOT-BC8645  Sambucus orbiculata var. glabra Adolph Daniel Edward Elmer 1903-7-1 4689 San Mateo Portola Comment
  CAS-BOT-BC236457  Sambucus racemosa subsp. racemosa W. R. Dudley 1894-3-24 s.n. San Mateo Near Pescadero Creek below B. Haywoods, Santa Cruz Mountain Peninsula Comment
  UC889773  Sambucus racemosa var. racemosa L. R. Abrams 1916-3-26 5589 San Mateo road between San Mateo and Half Moon Bay (coast side of grade) Comment
  UCD127909  Sanicula arctopoides Lewis S. Rose 1965-3-25 65012 San Mateo San Bruno Mountains, north end. 121 Comment
  CAS-BOT-BC223322  Sanicula bipinnatifida Margaret A. Barry 1938-3-6 230 San Mateo On Coal Mine Ridge Comment
  POM132687  Sanicula bipinnatifida A. D. E. Elmer 1903-04 s.n. San Mateo Lake San Andreas Comment
  SJSU1080  Sanicula bipinnatifida C. W. Sharsmith 1951-4-6 5820 San Mateo Woodside Hills c. 3 mi W of Woodside 182 Comment
  RSA40105  Sanicula bipinnatifida L. S. Rose 1948-3-31 48033 San Mateo Skyline Blvd. above San Andreas Lake. 152 Comment
  JROH345  Sanicula crassicaulis John Hunter Thomas 1987-5-15 24287 San Mateo Jasper Ridge Biological Preserve, Stanford University; near picnic area Comment
  CAS-BOT-BC166810  Sanicula crassicaulis Peter Rubtzoff 1976-6-30 8712 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  POM288023  Sanicula crassicaulis Lyman Benson 1930-4-4 2024 San Mateo Stanford University, San Francisquito Creek 76 Comment
  UC202777  Sanicula laciniata A. D. E. Elmer April, 1903 4498 San Mateo Portola; ; Portola, San Mateo Co. Comment
  JROH346  Sanicula laciniata Carol Zabel 1989-3-29 8 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road E, west side of road, 100 feet down from intersection with Road F Comment
  UCR121589  Satureja douglasii George K. Helmkamp, E. A. Helmkamp 1999-6-28 4974 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  POM202470  Satureja douglasii L. S. Rose 1933-6-9 s.n. San Mateo 3 miles W of San Bruno. Comment
  UC11756  Saxifraga californica Ivar Tidestrom 1894-3-22 San Mateo Comment
  UCD137506  Scabiosa atropurpurea Collector Unknown 1925-6-15 s.n. San Mateo Pescadero, Santa Cruz Road. Comment
  JROH348  Scandix pecten-veneris John H. Thomas 1955-5-6 5011 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH354  Scandix pecten-veneris John Hunter Thomas 1977-4-28 18564 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH362  Scandix pecten-veneris John Hunter Thomas 1986-5-1 23990 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176539  Schedonorus arundinaceus John H. Thomas 1963-8-4 10235 San Mateo About 2.5 miles inland from San Gregorio along the highway Comment
  JROH4419  Schoenoplectus acutus var. occidentalis John Hunter Thomas 1989-5-23 24748 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low flow crossing. Comment
  CAS-BOT-BC111780  Schoenoplectus pungens Peter Rubtzoff; Elizabeth McClintock; P. Reeberg 1989-6-3 s.n. San Mateo At mouth of drainage culvert, PG&E marsh. 1 Comment
  CAS-BOT-BC111059  Scirpus microcarpus James McMurphy 1909-10-8 s.n San Mateo Gazos Creek Comment
  JEPS62104  Scoliopus bigelovii Inez Smith March 1915 San Mateo Hillsboro Comment
  POM170228  Scoliopus bigelovii C. F. Baker 1902-3-18 322 San Mateo Kings Mountain Comment
  CAS-BOT-BC519012  Scoliopus bigelovii David D. Keck 1932-2-12 1359 San Mateo La Honda road, east slope of Coast Range above Searsville Lake 304 Comment
  CAS-BOT-BC519013  Scoliopus bigelovii Lewis S. Rose 1964-2-6 64000 San Mateo Kings Mountain 609 Comment
  POM193870  Scoliopus bigelovii Le Roy Abrams 1904-3-7 s.n. San Mateo Bear Gulch. Santa Cruz Mountain Peninsula. Comment
  RSA0028841  Scoliopus bigelovii D. D. Keck 1932-2-12 1359 San Mateo La Honda Road, east slope of Coast Range above Searsville Lake 305 Comment
  SEINET12051467  Scoliopus bigelovii F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -223 San Mateo 0.5 mi from junction of Kings Mt Rd & CA 35, on former enroute to Woodside, near Skyline Trail head 580 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
  JROH5458  Scribneria bolanderi John H. Thomas 1963-5-15 10093 C San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4121  Scrophularia californica W. R. Dudley 1895-7-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  UC1012346  Scrophularia californica F. W. Pennel and D. D. Keck 1940-5-15 25424 San Mateo sw San Mateo (e of upper Crystal Springs Lake) 91 Comment
  RSA46817  Scrophularia californica Doris K. Kildale 1929-6-19 8011 San Mateo 1.5 miles from La Honda. Comment
  SJSU11416  Scutellaria tuberosa E. C. Garbett 1961-4-8 279 San Mateo Searsville L Park at head of San Francisquito Cr Comment
  CAS-BOT-BC59056  Sedum spathulifolium G. B. Rossbach 1939-6-18 756 San Mateo Montar Mts, Ledge near no 755 on SE slope of North Peak. 396 Comment
  CAS-BOT-BC59271  Sedum spathulifolium W. R. Dudley 1894-4-21 s.n. San Mateo Rocks below Crystal Springs Reservoir. Comment
  CAS-BOT-BC327388  Senecio aphanactis Fred Hemphill 1973-4-22 798 San Mateo North of Malabar Road adn Melendy Drive, San Carlos 207 Comment
  JROH1221  Senecio aronicoides D. E. Breedlove 1971-5-31 19356 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  RSA195550  Senecio mikanioides John H. Thomas 1967-2-9 12399 San Mateo San Bruno. Near intersection of Skyline Blvd. and Berkshire Dr. Comment
  CAS-BOT-BC364238  Senecio sylvaticus Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain. East facing slope below parking lot Comment
  CAS-BOT-BC364638  Senecio vulgaris John H. Thomas 1968-12-18 14869 San Mateo About 1 mile west of Pescadero toward the coast Comment
  CAS-BOT-BC80289  Sequoia sempervirens David D. Keck 1932-2-14 1368 San Mateo La Honda road, east slope of Coast Range above Searsville Lake 304 Comment
  JEPS48276  Sequoia sempervirens Alice F. Crane 1917-11-27 San Mateo La Honda Comment
  JROH133  Sequoia sempervirens W. R. Dudley 1901-1-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  NY804119  Sequoia sempervirens C. R. Broome 1978-7-2 2224 San Mateo Kings Mountain Road, 1.5 miles West of its junction with California Highway 84. Comment
  UCSB11437  Sequoia sempervirens Olson, Jim 1962-4-15 San Mateo 8 miles north of junction with Portola State Park Road on Camp Pomponio Road, 10 miles southwest of La Honda 213 Comment
  CAS-BOT-BC85778  Sequoia sempervirens W. R. Dudley 1902-12-1 s.n. San Mateo On trail from Iverson's Bull Spring Comment
  JROH5464  Setaria viridis John Rawlings 2005-9-28 1008 San Mateo Jasper Ridge Biological Preserve, Stanford University. Corte Madera Creek. 110 Comment
  SJSU10484  Setaria viridis S. H. Casey 1975-6-14 490 San Mateo by residence, SW Redwood City Comment
  CDA6645  Sherardia arvensis D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  JROH3826  Sherardia arvensis John H. Thomas 1955-5-6 4996 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small draw on south side of ridge. 182 Comment
  RSA295088  Sherardia arvensis Robert A. Norris 1981-4-7 4124 San Mateo Near small paved road. Vista Point near Interstate Hwy 280. Ca 1.5 miles SE of jct with State Hwy 92. Comment
  SEINET3561191 Image available Sidalcea calycosa Lewis S. Rose 1934-5-27 34281 San Mateo Emerald Lake. Comment
  UCD116624  Sidalcea diploscypha Ellen Phillips 1977-4-30 9 San Mateo east of Canada College across Farmhill Boulevard. Redwood City. 304 Comment
  UCD116582  Sidalcea hickmanii subsp. viridis S. Seiki 1998-5-2 2 San Mateo city of Pacifica, Montara Mountain, approximately 2.3 miles from San Pedro Valley along Devil's Slide heading west. Specimen found along trail about 0.25 mile in from the entrance to the trail. Comment
  CHSC109021  Sidalcea malviflora R. F. Thorne; Percy C. Everett 1963-6-9 32221 San Mateo Central Western; San Francisco Bay area; on top of San bruno Mountain on Kambhatka Point near the TV tower. Comment
  UCSB11675  Sidalcea malviflora Connelly, Dianne 1962-4-21 San Mateo Above main office of Westborough homes development, 10 miles north of San Francisco, Skyline Boulevard 121 Comment
  UC18913  Sidalcea malviflora subsp. laciniata J. Burtt Davy 1895-4-20 1024 San Mateo Millbrae Comment
  UC204266  Sidalcea malviflora subsp. laciniata A. D. E. Elmer May 1903 4637 San Mateo San Bruno Hills Comment
  POM203640  Sidalcea malviflora subsp. malviflora J. T. Howell 1933-4-9 10975 San Mateo 2 miles N. of Pigeon Pt. Comment
  POM282902  Sidalcea malviflora subsp. malviflora Lyman Benson 1930-4-6 2044 San Mateo Moss Beach. West slope. 15 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
  CAS-BOT-BC389902  Silene Alice Eastwood 1912-6-10 328 San Mateo Millbrae Comment
  UC8421  Silene californica J. Burtt Davy Jun 21 1893-Jun 23 1893 1158 San Mateo Pilarcitos Lake and Canyon Comment
  CAS-BOT-BC386849  Silene gallica Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain, slope above Hillside Blvd., South San Francisco Comment
  CAS-BOT-BC386850  Silene gallica Javier Penalosa 1963-3-9 2696 San Mateo San Bruno Mountain. Ravine 1/2 mi. east of 1314ft. summit. 304 Comment
  JROH1736  Silene gallica John Hunter Thomas 1981-5-14 20584 San Mateo Jasper Ridge Biological Preserve, Stanford University; near edge of lake below Searsville Lab Comment
  UCSB16388  Silene gallica Schulte, John 1963-4-28 San Mateo Jasper Ridge; 3 miles southwest of Stanford Campus; between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC389195  Silene laciniata subsp. californica A. D. E. Elmer 1903-6-1 4446 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC389898  Silene scouleri subsp. scouleri Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC389894  Silene scouleri subsp. scouleri C. F. Leitholt 1894-7-29 s.n. San Mateo Santa Cruz Mountain Peninsula. Pescadero Comment
  CAS-BOT-BC364857  Silybum marianum George Oberlander 1949-7-24 257 San Mateo San Francisco Watershed Reserve. On Sawyer Ridge Comment
  CAS-BOT-BC364859  Silybum marianum Ned Cahill 1974-7-14 356 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC74987  Sinapis arvensis Fred Hemphill 1973-4-8 615 San Mateo San Carlos. North of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC75352  Sisymbrium officinale Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountains. Crocker Avenue. Comment
  CDA3853  Sisymbrium officinale W. Plummer 1971-7-9 San Mateo Dick Bulles property, Alpine Creek, Pescadero . 0 Comment
  JROH4442  Sisyrinchium bellum John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA133098  Sisyrinchium bellum Donald A. Johansen 1933-5-18 708 San Mateo Hills above Searsville Lake, Stanford University Campus Comment
  SEINET3558360 Image available Sisyrinchium bellum David D. Keck 1932-5-6 1467 San Mateo Belmont, Belmont. Comment
  UCR101612  Sisyrinchium bellum George K. Helmkamp, E. A. Helmkamp 1998-5-16 3746 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  HSC59826  Sisyrinchium bellum Clark L. Miller 1978-6-15 367 San Mateo 6 mi. S of Half Moon Bay off old Hwy. 1, 2 mi. in on Verde Rd. 61 Comment
  RSA155568  Sisyrinchium bellum Lewis S. Rose 1961-4-5 61031 San Mateo San Bruno Mountains. 366 Comment
  UC13692  Sisyrinchium californicum Alice Eastwood April 1896 San Mateo Crystal Springs Comment
  SEINET3561666 Image available Sitanion jubatum Lewis S. Rose 1932-1 32226 San Mateo Redwood City. Comment
  UC518005  Smilacina stellata Lewis S. Rose 1933-4-9 33070 San Mateo Belmont Comment
  UCR115445  Smilacina stellata Don Pendleton 1996-4-5 s.n. San Mateo San Francisco Bay region, Edgewood County Park, western edge of Redwood City, along Edgewood Rd. north of the parking lot for the park 122 Comment
  JROH4179  Solanum americanum John Hunter Thomas 1982-7-2 21054 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing Comment
  JROH4182  Solanum americanum John Hunter Thomas 1991-11-21 25102 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  SJSU7787  Solanum americanum C. A. Staicer 1976-9-25 San Mateo San Francisquito Cr near El Camino Real, Menlo Park Comment
  JEPS12105  Solanum douglasii W. I. Follett 1934-2-18 10 San Mateo 2.6 mi n of Pigeon Point (beside the main highway) Comment
  SEINET10546495  Solanum douglasii Mary Susan Taylor 1978-8-30 Taylor 1860 San Mateo Comment
  SEINET12274723  Solanum douglasii M. T. Doutt 1931-1 s.n. San Mateo Ano Nuevo Pt Comment
  NY821395  Solanum nigrum L. Abrams 1939-6-3 425 San Mateo Ano Nuevo Point Comment
  RSA784604  Solanum nodiflorum Peter Rubtzoff 1974-12-17 7942 San Mateo San Bruno Mountains. 'Saddle' area on N side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  CAS-BOT-BC157631  Solanum umbelliferum B. 1902-1-15 234 San Mateo West side King's Mt. Comment
  JROH4187  Solanum umbelliferum John H. Thomas 1967-5-12 12887 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4188  Solanum umbelliferum John H. Thomas 1968-3-17 14192 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4190  Solanum umbelliferum John H. Thomas 1973-3-12 16496 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC157037  Solanum umbelliferum A. Menzies; B. Menzies 1965-3-14 s.n. San Mateo South Power Line Ridge Comment
  CAS-BOT-BC365537  Solidago elongata J. H. Thomas 1959-8-16 8065 San Mateo About 2 miles SW of Pescadero 60 Comment
  CAS-BOT-BC365744  Solidago spathulata Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Motorcycle Ridge Comment
  CAS-BOT-BC365748  Solidago spathulata John H. Thomas 1961-5-12 9331 San Mateo San Bruno Mountain in northern part of county 396 Comment
  SEINET9319779  Solidago spathulata Unknown 1948-8-22 121 San Mateo San Vicente Canyon Comment
  JEPS27366  Soliva sessilis Rimo Bacigalupi with J. Roof and L. Heckard 1961-4-24 7626 San Mateo Guadalupe Valley side of the summit San Bruno Mountain (on lateral ridge below and se end of paved ridge-top road just e of KRON television tower and station); Guadalupe Valley side of the summit San Bruno Mountain 304 Comment
  CAS-BOT-BC353414  Soliva sessilis Peter Rubtzoff 1976-5-22 8550 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction. East Fork Colma Creek canyon area, San Bruno Mountains. Comment
  JROH1254  Soliva sessilis John Hunter Thomas 1992-5-5 25212 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1257  Sonchus asper subsp. asper John H. Thomas 1974-8-11 17507 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC374699  Sonchus oleraceus John H. Thomas 1965-4-29 10602 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC374700  Sonchus oleraceus John H. Thomas 1958-3-19 7054 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  CAS-BOT-BC374697  Sonchus oleraceus Ira L. Wiggins 1979-8-26 22247 San Mateo Alley between Central and Woodland Avenues, running from Pope to Gilbert Streets, Menlo Park Comment
  JROH1262  Sonchus oleraceus John H. Thomas 1974-4-6 17092 San Mateo Jasper Ridge Biological Preserve, Stanford University; west side of dam Comment
  RSA14504  Sparganium erectum subsp. stoloniferum I. L. Wiggins 1935-8-24 8160 San Mateo Small creek about 1/2 mile south of Moss Beach. Comment
  JROH5519  Sparganium eurycarpum var. eurycarpum James McMurphy 1906-8-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Comment
  JROH5525  Sparganium eurycarpum var. eurycarpum John Hunter Thomas 1979-9-9 19724 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake. Comment
  UC1751042  Spartina foliosa Annetta M. Carter with Mary Bowerman, Mrs. Bowerman, Betty Wood, Florence Little 1934-10-21 736 San Mateo Dumbarton Bridge Comment
  CAS-BOT-BC390008  Spergula arvensis John H. Thomas 1964-4-30 10348 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC389687  Spergula arvensis Jeanie Nieri 1953-2-3 s.n. San Mateo Empty lot three miles west of Hillsdale Comment
  JROH1754  Spergularia John Hunter Thomas 1977-6-16 18802 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1762  Spergularia John Hunter Thomas 1983-4-3 21309 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  JROH1767  Spergularia John Hunter Thomas 1988-4-27 24411 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC390207  Spergularia bocconi Alice Eastwood 1937-7-25 18888 San Mateo Pebble Beach, Pescadero Comment
  RSA224264  Spergularia bocconi P. H. Raven 1954-5-16 6954 San Mateo Oceanic bluffs North of mouth of Lobos Creek. Comment
  RSA18465  Spergularia macrotheca C. B. Wolf 1927-6-29 543 San Mateo South of Pebble Beach near Pescadero Comment
  CAS-BOT-BC390466  Spergularia macrotheca var. macrotheca W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. By grade, south slope Montara Mts. and near the ocean Comment
  CAS-BOT-BC390472  Spergularia macrotheca var. macrotheca G. B. Rossbach; R. P. Rossbach 1940-6-20 738 San Mateo 1 mile south of Montara Point Comment
  CAS-BOT-BC390473  Spergularia macrotheca var. macrotheca G. B. Rossbach; R. P. Rossbach 1937-11-25 610 San Mateo 3 mi. south of Half Moon Bay Comment
  CAS-BOT-BC390916  Spergularia marina John Thomas Howell 1924-9-28 666 San Mateo At the Leslie Salt Refinery Comment
  UCD169489  Spergularia marina Peter H. Raven 1950-5-7 2039 San Mateo Moss Beach. 24 Comment
  RSA0098734  Spergularia villosa Lyman Benson 1930-6-14 2154 San Mateo San Gregorio. 30 Comment
  UCR240606  Stachys T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3530 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-BC220977  Stachys B. Carlson 1981-5-10 042 San Mateo Dead end of Native Sons road, off Pescadero Road 152 Comment
  RSA131277  Stachys ajugoides L. R. Abrams 1915-6-7 5244 San Mateo Woodside to Crystal Springs Road. Comment
  SD39617  Stachys ajugoides var. ajugoides Edith A. Purer 1933-7-27 5358 San Mateo Pigeon Point Comment
  UC100825  Stachys ajugoides var. ajugoides J. Burtt Davy 1893-6-17 810 San Mateo Belmont Comment
  JROH2899  Stachys bullata John H. Thomas 1971-5-30 15977 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2906  Stachys bullata John Hunter Thomas 1983-6-29 22699 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2910  Stachys bullata John Hunter Thomas 1987-5-19 24294 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC191758  Stachys bullata E. L. Greene 1887-6-11 San Mateo Comment
  JEPS82914  Stachys pycnantha Roy E. Buck and Randall A. Morgan 1983-6-7 334 San Mateo San Francisco Watershed Reserve; in triangle of Edgewood and Canada Rds and Hwy I-280 152 Comment
  RSA218025  Stachys rigida subsp. quercetorum Elizabeth McClintock, Carlyn Halde 1963-6-23 s.n. San Mateo East-facing slope below parking lot, San Bruno Mountain Comment
  CAS-BOT-BC5588  Stachys rigida var. quercetorum A. A. Heller 1907-5-28 8581 San Mateo Back of San Mateo on the Half Moon Bay road, about 3 miles beyond San Mateo 91 Comment
  UC36684  Stebbinsoseris heterocarpa Alice Eastwood May 1890 - May 1896 San Mateo Crystal Springs Comment
  JROH1779  Stellaria media John H. Thomas 1968-3-17 14181 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1787  Stellaria media John Hunter Thomas 1983-4-5 21323 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  JROH1782  Stellaria media John H. Thomas 1976-10-16 18417 San Mateo Jasper Ridge Biological Preserve, Stanford University; along or near San Francisquito Creek from the low flow crossing to the vicinity of the old fire place ruins downstream Comment
  JROH1788  Stellaria nitens John H. Thomas 1958-2-15 6993 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1536756  Stephanomeria elata G. H. True Jr. 1937-7-31 830 San Mateo near Skyline Blvd. (Alpine Road) 182 Comment
  JROH5813  Stephanomeria virgata John Rawlings, Diane Renshaw 2016-8-8 1931 San Mateo Jasper Ridge Biological Preserve, Stanford University. On steep south-facing road bank opposite Tr. 14/Rd E intersection, a few additional plants at the Tr. 14/Rd E intersection and along the trail 106 Comment
  CAS-BOT-BC375911  Stephanomeria virgata Le Roy Abrams 1902-9-28 3002 San Mateo New Grade Road - near Portola Comment
  JROH5393  Stipa miliacea var. miliacea John Rawlings 2011-10-11 1088 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along the brick path from Visitor Parking to Sun Field Station. 119 Comment
  SD38068  Stylomecon heterophylla Marie Cummings 1933-5-8 80 San Mateo Steven's Creek. Comment
  CAS-BOT-BC271601  Symphoricarpos albus var. laevigatus Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo East facing slope below parking lot, San Bruno Mountain Comment
  CAS-BOT-BC271604  Symphoricarpos albus var. laevigatus Walter Knight; Irja Knight 1964-5-30 594 San Mateo Colma Canyon, San Bruno Mountain Comment
  CAS-BOT-BC271637  Symphoricarpos albus var. laevigatus C. F. Baker 1901-9-5 238 San Mateo West side Kings Mt. Comment
  JROH1679  Symphoricarpos albus var. laevigatus John Hunter Thomas 1977-6-16 18737 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1682  Symphoricarpos albus var. laevigatus John Hunter Thomas 1978-7-2 19248 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA246190  Symphoricarpos albus var. laevigatus E. K. Balls 1965-9-18 12170 San Mateo 1 mile W from Skywood along Hwy 81 from Woodside to junction with Hwy 35. Comment
  CAS-BOT-BC237063  Symphoricarpos mollis W. R. Dudley 1893-5-27 s.n. San Mateo Kings Mt., Santa Cruz Range, Santa Cruz Mountain Peninsula Comment
  JROH1687  Symphoricarpos mollis John Rawlings, Ann Lambrecht 2010-5-2 1097 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near west end of Birder's Trail between and parallel Rd. E and Trail 7 150 Comment
  RSA18299  Symphoricarpos mollis C. B. Wolf 1927-5-31 417 San Mateo North end of Searsville Lake. 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
  UC892754  Symphyotrichum chilense Lewis S. Rose 1933-10-14 33381 San Mateo Visitacion Valley, (dry hills) Vistacion Valley Comment
  CAS-BOT-BC99084  Symphyotrichum chilense W. R. Dudley 1895-9-21 s.n. San Mateo Menlo Park - Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC99095  Symphyotrichum chilense W. R. Dudley 1897-10-10 s.n. San Mateo Near Pilar Point Comment
  UC1544807  Symphyotrichum subspicatum Almut G. Jones 1986-8-23 7251 San Mateo Near Half Moon Bay 50 Comment
  SJSU11814  Symphyotrichum subspicatum R. R. Regnart 1961-5-7 San Mateo by Purissima Creek Road by Purissima Creek 0.5 mi E of Purissima Comment
  UC1927817  Symphyotrichum subspicatum David Keil 1988-11-19 21201 San Mateo Highway 1, south of Half Moon Bay Comment
  JROH1279  Tanacetum parthenium Carol Zabel 1989-8-11 30 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek bank upstream 20 feet from low-flow crossing on Road C Comment
  JROH1287  Taraxacum officinale John Hunter Thomas 1981-2-14 20230 San Mateo Jasper Ridge Biological Preserve, Stanford University; old picnic area below dam Comment
  CAS-BOT-BC353469  Taraxacum officinale Peter Rubtzoff 1976-3-28 8449 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC353470  Taraxacum officinale Peter Rubtzoff 1976-5-22 8553 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
  CHSC1159  Taraxia ovata M. Harless 1930-5-2 San Mateo Moss Beach. Comment
  SD39527  Taraxia ovata Janet Tuaner 1933-4-18 2126 San Mateo Emerald Lake Comment
  UCSB11442  Taraxia ovata Olson, Jim 1962-4-17 San Mateo 1 mile east of Halfmoon Bay; on road to San Mateo 15 Comment
  CAS-BOT-BC447472  Tellima grandiflora A. D. E. Elmer 1903-6-1 4702 San Mateo Pescadero Comment
  SD146155  Tellima grandiflora G. K. Helmkamp, E. A. Helmkamp 1999-6-28 4971 San Mateo Pescadero Creek Watershed: Pescadero Rd just N of Loma Mar. 106 Comment
  UCD39286  Tetragonia expansa B. Crampton 1962-6-11 6517 San Mateo Pacifica, Rockaway Beach, State Hwy. 1. Comment
  CAS-BOT-BC438264  Tetragonia tetragonoides Ira L. Wiggins 1935-8-24 8161 San Mateo At Moss Beach Comment
  CAS-BOT-BC438268  Tetragonia tetragonoides Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo San Bruno Mountain. Point San Bruno. Comment
  JROH3507  Thalictrum fendleri var. polycarpum John H. Thomas 1958-5-10 7159 San Mateo Jasper Ridge Biological Preserve, Stanford University. Fairly common along embankment of trail near Searsville Lake. Comment
  JROH3508  Thalictrum fendleri var. polycarpum John H. Thomas 1961-4-29 9196 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC399842  Thalictrum polycarpum A. D. E. Elmer 1903-6-1 4425 San Mateo Butano Creek Comment
  CAS-BOT-BC202036  Thinopyrum ponticum Elizabeth McClintock; Paul Reeberg 1989-8-19 s.n. San Mateo San Bruno Mountains. Along Bayshore Boulevard 15 Comment
  CAS-BOT-BC66664  Thysanocarpus curvipes John H. Thomas 1971-4-3 15745 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66672  Thysanocarpus curvipes John H. Thomas 1975-4-5 17715 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66673  Thysanocarpus curvipes John H. Thomas 1976-4-2 18074 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66681  Thysanocarpus curvipes Walter Knight; Irja Knight 1967-5-1 s.n. San Mateo San Bruno Mountain. Owl's Canyon. Comment
  JROH1593  Thysanocarpus curvipes subsp. curvipes John Hunter Thomas 1981-4-7 20299 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC447579  Tiarella trifoliata var. unifoliata D. E. Breedlove 1973-9-26 35562 San Mateo Pescadero Creek County Park 365 Comment
  CAS-BOT-BC447581  Tiarella trifoliata var. unifoliata L. R. Abrams 1907-8-26 s.n. San Mateo Spring near King's 762 Comment
  JROH392  Torilis nodosa John Hunter Thomas 1984-5-3 23330 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH183  Toxicodendron diversilobum John H. Thomas 1964-4-4 10295 San Mateo Jasper Ridge Biological Preserve, Stanford University 152 Comment
  JROH4755  Toxicoscordion fremontii John H. Thomas 1956-4-7 5604 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent slopes Comment
  JROH1288  Tragopogon porrifolius John H. Thomas 1977-5-14 18606 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC377138  Tragopogon porrifolius Phillip Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Crocker Industrial Park Comment
  RSA0035128  Trientalis europaea var. latifolia W. M. Arbaugh 1968-4-24 257 San Mateo Butano State Park. Comment
  JROH3392  Trientalis latifolia John H. Thomas 1974-5-3 17248 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH3397  Trientalis latifolia John Hunter Thomas 1985-4-22 23542 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM128507  Trientalis latifolia L. R. Abrams 1902-5-20 2468 San Mateo Kings Mountain Comment
  RSA116718  Trientalis latifolia H. L. Mason 1917-4-21 s.n. San Mateo Permental Creek Comment
  JEPS85234  Trifolium Roy E. Buck and James A. West 1985-4-21 522 San Mateo 3.2 air km ene Franklin Point (on crest of low ridge separating Whitehouse Creek drainage and small lake to s, ca 2.1 air km ne of Whitehouse Canyon Rd and Hwy 1); Cascade Ranch 106 Comment
  UCR66503  Trifolium albopurpureum L. S. Rose 1933-5-17 33172 San Mateo Redwood City 6 Comment
  UC518035  Trifolium albopurpureum var. albopurpureum Lewis S. Rose 1933-5-17 33172 San Mateo Redwood City Comment
  JEPS65852  Trifolium albopurpureum var. dichotomum J. Burtt Davy 1895-4-20 1068 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC157982  Trifolium amplectens Peter Rubtzoff; Barbara Deutsch 1979-5-27 9285 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction Comment
  SJSU15224  Trifolium angustifolium Toni Corelli 2010-6-1 640 San Mateo Wavecrest, west of Highway 1 in Half Moon Bay 22 Comment
  JROH2236  Trifolium barbigerum K. Hoffaugh 1929-4-27 651 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM226873  Trifolium barbigerum L. R. Abrams 1914-4-2 5080 San Mateo Menlo Heights. Comment
  POM88143  Trifolium bifidum L. R. Abrams 1902-5-20 2470 San Mateo Kings Mountain Comment
  JROH2252  Trifolium bifidum var. decipiens John H. Thomas 1964-4-19 10317 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville end of ridge Comment
  RSA184981  Trifolium bifidum var. decipiens L. S. Rose 1966-5-2 66035 San Mateo Emerald Lake, west of Redwood City. 91 Comment
  JROH2257  Trifolium ciliolatum John H. Thomas 1975-4-30 17842 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Escobar Gate Comment
  JROH2258  Trifolium depauperatum var. amplectens John H. Thomas 1955-5-6 4990 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge Comment
  JROH2262  Trifolium depauperatum var. amplectens John Hunter Thomas 1981-4-21 20463 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2264  Trifolium depauperatum var. amplectens John Hunter Thomas 1982-4-28 20868 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2268  Trifolium depauperatum var. truncatum Sara Thompson 1958-4-12 13 San Mateo Jasper Ridge Biological Preserve, Stanford University; top of Jasper Ridge, near old exclosure Comment
  JROH2279  Trifolium dubium John Hunter Thomas 1978-4-25 19150 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15229  Trifolium fragiferum Toni Corelli 2012-7-12 805 San Mateo Wavecrest, west of Highway 1 in Half Moon Bay 22 Comment
  JROH2284  Trifolium fucatum John H. Thomas 1955-5-6 4987 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent grassy slopes Comment
  JROH2287  Trifolium fucatum John H. Thomas 1958-5-10 7148 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2290  Trifolium fucatum John H. Thomas 1973-4-14 16560 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM88134  Trifolium fucatum var. fucatum L. R. Abrams 1902-5-4 2424 San Mateo Woodside 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
  CDA27958  Trifolium gracilentum T. C. Fuller 1967-6-13 15941 San Mateo Half Moon Bay Harbor, north edge of the town of Half Moon Bay. 0 Comment
  JROH2325  Trifolium hirtum John Hunter Thomas 1985-5-2 23578 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2319  Trifolium hirtum John Hunter Thomas 1981-5-14 20576 San Mateo Jasper Ridge Biological Preserve, Stanford University; along dirt road near main entrance Comment
  CDA27988  Trifolium macraei D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  UC146913  Trifolium microcephalum J. Burtt Davy 1893-6-22 837 San Mateo Lake Pilarcitos Comment
  JEPS127794  Trifolium microdon Adam C. Schneider with C. Matt Guilliams 2013-4-7 67 San Mateo Along Dirt Road running parallel to overhead power transmission lines. GPS coordinates approximate. Comment
  SEINET5628487 Image available Trifolium olivaceum Unknown 1907-1 8554 San Mateo Back of San Mateo Comment
  JROH2347  Trifolium subterraneum John Hunter Thomas 1980-5-13 19965 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2370  Trifolium variegatum Carl B. Wolf 1929-4-24 3657 San Mateo Jasper Ridge Biological Preserve, Stanford University; so. west end of Jasper Ridge 152 Comment
  SEINET4206967  Trifolium variegatum Lewis S. Rose 1953-4-5 53011 San Mateo Redwood City, CA, along Bayshore Highway.; 0 3 Comment
  UC165501  Trifolium variegatum var. melananthum J. Burtt Davy 1895-1 1017 San Mateo Pilarcitos 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
  SJSU15438  Trifolium willdenovii Toni Corelli 2010-5-13 605 San Mateo Pedro Point Headlands, Pacifica CA; along Arroyo Trail. 170 Comment
  SD39589  Trifolium wormskioldii Edith A. Purer 1933-7-27 5385 San Mateo 2.0 miles south of Pigeon Point. Comment
  UCD164094  Trifolium wormskioldii Peter Rubtzoff 1978-5-5 9166 San Mateo San Bruno Mountains. 'Saddle' area on N side of Guadalupe Canyon Parkway west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  SJSU15758  Trillium albidum Toni Corelli 2009-3-10 425 San Mateo Gazos Creek Road, San Mateo Coast 18 Comment
  CAS-BOT-BC521007  Trillium chloropetalum var. chloropetalum R. Bacigalupi 1922-3-1 s. n. San Mateo Jones Ranch, Pescadero Creek Comment
  CAS-BOT-BC521201  Trillium chloropetalum var. giganteum W. R. Dudley 1900-3-16 s.n. San Mateo Santa Cruz Peninsula: by trail north of Tripps Store, Woodside Comment
  CAS-BOT-BC521208  Trillium chloropetalum var. giganteum Ira L. Wiggins 1928-4-14 2917 San Mateo Alpine Creek Road Comment
  POM193595  Trillium chloropetalum var. giganteum W. R. Dudley 1900-3-16 s.n. San Mateo By trail north of Tripps Stone, Woodside. Comment
  RSA378200  Trillium chloropetalum var. giganteum L. J. Clemments s.n. San Mateo San Mateo Comment
  CAS-BOT-BC133445  Trillium ovatum W. R. Dudley 1903-5-2 s.n. San Mateo Near Iverson's (Near Pescadero) Comment
  PASA493  Trillium ovatum San Mateo Kings Mt. Comment
  RSA15280  Trillium ovatum Carl B. Wolf 1927-4-3 246 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  CAS-BOT-BC238554  Triphysaria floribunda Alice Eastwood 1919-5-19 s.n. San Mateo San Bruno Hills, San Francisco Comment
  CAS-BOT-BC238562  Triphysaria floribunda L. R. A. 1902-4-13 2321 San Mateo Lake San Andreas Comment
  UC27202  Triphysaria floribunda J. Burtt Davy 1895-4-20 1028 San Mateo Millbrae Comment
  UC1073370  Triphysaria versicolor subsp. versicolor George B. Rossbach 1955-5-29 482 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC200080  Trisetum canescens W. R. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs Lake Comment
  UCR101614  Triteleia George K. Helmkamp, E. A. Helmkamp 1998-5-16 3751 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  JROH4739  Triteleia hyacinthina John Hunter Thomas 1978-5-12 19201 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4741  Triteleia hyacinthina John Hunter Thomas 1981-4-30 20519 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB811  Triteleia hyacinthina Haller, John 1950-4-26 San Mateo 2 miles northwest of Stanford University, along road to woodside 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
  RSA18364  Triteleia ixioides subsp. ixioides Carl B. Wolf 1929-5-24 3724 San Mateo 1/4 mile north of base of La Honda Grade on Woodside road Comment
  IRVC9054  Triteleia laxa P. W. Rundel 1963-6-11 1118 San Mateo San Fransisco Bay drainage area; Old La Honda Road. Santa Cruz Mountain Range 305 Comment
  SEINET12053115  Triteleia laxa Unknown 1933-1 20 San Mateo near Emerald Lake above Redwood City Comment
  UCSB17660  Triteleia laxa Schulte, John 1963-4-14 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  IRVC12855  Triteleia peduncularis Lora Epstein 1967-5-26 43 San Mateo On Woodside Road; 1.5 mi. N of jct with Ridgeway Drive. Comment
  CAS-BOT-BC200486  Triticum aestivum Walter Knight; Irja Knight 1965-4-24 1037 San Mateo Point San Bruno Comment
  CAS-BOT-BC74058  Turritis glabra Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain. Above Hillside Boulevard. South San Francisco. Comment
  CAS-BOT-BC74062  Turritis glabra Margaret A. Barry 1938-4-28 s.n. San Mateo On Coal Mine Ridge. Comment
  CAS-BOT-BC74063  Turritis glabra George Oberlander 1950-5-28 954 San Mateo San Francisco Watershed Reserve. Southern Cahill Ridge. Comment
  JROH5533  Typha angustifolia John H. Thomas 1967-5-31 12928 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1241808  Typha angustifolia Malcolm A. Nobs and S. Galen Smith 1949-8-25 1556 San Mateo marshes at Sharp Park; marshes at Sharp Park Comment
  RSA10402  Typha angustifolia Carl B. Wolf 1927-6-15 2168 San Mateo Along Skyline Drive, 8 mi. S of San Francisco. Comment
  RSA78564  Ulex europaeus Philip A. Munz 1953-2-1 18274 San Mateo North of Scott Valley. Comment
  CAS-BOT-BC91225  Umbellularia californica Elizabeth McClintock 1966-9-29 s.n. San Mateo San Bruno Mountains. In a canyon adjacent to northwestern edge of Brisbane. Comment
  RSA15340  Umbellularia californica C. B. Wolf 1927-2-5 151 San Mateo Pilarcitos Lake Comment
  UC750643  Umbellularia californica Lewis S. Rose 1946-3-9 46017 San Mateo San Mateo Canyon 91 Comment
  SEINET12102550  Umbellularia californica G. A. McCallum 1933-1 s.n. San Mateo near San Francisquita Creek Comment
  JROH1290  Uropappus lindleyi John H. Thomas 1963-5-12 10084 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4239  Urtica dioica subsp. holosericea John Hunter Thomas 1989-6-6 24766 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC199175  Vaccinium cespitosum John H. Thomas 1961-8-27 9709 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC199180  Vaccinium cespitosum Elizabeth McClintock; Paul Reeberg 1988-8-12 s.n. San Mateo West facing slope of Kamchatka Point Comment
  POM222793  Vaccinium ovatum S. S. Berry 1909-3-13 s.n. San Mateo San Mateo Comment
  UC877266  Vaccinium ovatum E. W. Rust 1907-4-27 San Mateo Kings Mountain 762 Comment
  RSA0074198  Vaccinium ovatum K. Hoppough 1929-5-8 3027 San Mateo King's Mountain. Comment
  CAS-BOT-BC199467  Vaccinium parvifolium A. D. E. Elmer 1903-5-1 4924 San Mateo Butano Creek Comment
  CAS-BOT-BC199470  Vaccinium parvifolium H. L. Mason 1921-1-1 s.n. San Mateo Pescadero Creek 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
  JROH4265  Verbena lasiostachys var. lasiostachys John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15962  Verbena lasiostachys var. lasiostachys John Rawlings, Ken Hickman 2016-5-26 1838 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
  UC112848  Veronica americana Katharine Brandegee July 1908 San Mateo near San Pedro Comment
  RSA14507  Veronica americana I. L. Wiggins 1935-8-24 8162 San Mateo Marshy creek entering bay at Moss Beach. Comment
  RSA788376  Veronica americana Peter Rubtzoff 1980-8-4 9560 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Westernmost part of the area on a slope across fence. Comment
  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
  JROH2427  Vicia benghalensis John Hunter Thomas 1977-6-16 18797 -2 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM16863  Vicia exigua C. F. Baker 1902-5-4 741 San Mateo Woodside. Comment
  POM16883  Vicia gigantea Baker 1902-4-12 506 San Mateo San Gregorio Comment
  CAS-BOT-BC173652  Vicia sativa Peter Rubtzoff 1976-5-22 8552 San Mateo Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction, near marshy area NW of Fog Forest Comment
  SJSU1012  Vicia sativa subsp. nigra J. E. Hagerty 1950-5-16 San Mateo Stanford Village Comment
  JEPS34465  Vicia sativa subsp. sativa L. R. Heckard, and R. Bacigalupi 1963-7-2 1354 San Mateo nw slope Montara Peak (trail to Montara Peak (nw slope) above old county road) 304 Comment
  JROH2451  Vicia sativa subsp. sativa John Hunter Thomas 1983-4-3 21311 San Mateo Jasper Ridge Biological Preserve, Stanford University; old beach area Comment
  CAS-BOT-BC264030  Viola adunca W. R. Dudley 1894-3-28 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Pebbly Beach, Pescadero Comment
  UC19259  Viola adunca Ivar Tidestrom 1894-3-24 San Mateo Comment
  UC566140  Viola adunca A. E. Wieslander 1935-2-3 507 San Mateo 1/2 mi se of Pigeon Point 30 Comment
  SEINET6176297  Viola adunca Lewis S. Rose 1951-3-7 5100 San Mateo San Bruno Hills.; 0 244 Comment
  UC19283  Viola glabella J. Burtt Davy 1895-4-20 1056 San Mateo Pilarcitos Creek Comment
  CAS-BOT-BC536826  Viola glabella Josephine D. Randall 1908-3-28 s.n. San Mateo Santa Cruz Peninsula: Kings Mt. Comment
  PASA1525  Viola glabella San Mateo Kings Mt. Comment
  CHSC13860  Viola ocellata S. Villard 1974-4-28 2 San Mateo Kings Mountain Rd., Woodside. 1 mi. W of Mounted Patrol Grounds on both sides of the rd. 152 Comment
  UCR64473  Viola ocellata David D. Keck 1932-6-1 1495 San Mateo Coast Range; Santa Cruz Mtns, above Woodside on La Honda road 366 Comment
  JROH4285  Viola ocellata H. J. Dengler 1972-5-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Eight feet from S.F. Creek by great boulder at redwood grove by Searsville Rocks. Comment
  POM134805  Viola pedunculata C. F. Baker 1902-3-22 347 San Mateo South San Francisco. Comment
  RSA412720  Viola pedunculata Glenn A. Gorelick 1967-4-15 s.n. San Mateo San Bruno Mts. overlooking Daly City near San Francisco. Comment
  POM286649  Viola sempervirens Lyman D. Benson 1935-3-10 6252 San Mateo La Honda Grade. Santa Cruz mtn range, Pacific Ocean watershed. 518 Comment
  SEINET5729332 Image available Viola sempervirens Franklin Martin, Madelain Martin 1960-1 55 San Mateo YMCA camp, 10 miles east of Pescadero.; Pescadero 152 Comment
  CAS-BOT-BC199821  Vulpia Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo Above Hillside Blvd., South San Francisco Comment
  CAS-BOT-BC199856