Search Results — 2000 specimen records retrieved (1315 records with coordinates)
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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
  CHSC22697  Abronia latifolia Robert A. Schlising; Glenn Keator 1962-2-3 2043 San Mateo Sand dunes along Hwy 1, 3.9 mi N of Jct with Bonnie Doon Road. Comment
  CAS-BOT-BC383898  Abronia latifolia W. R. Dudley 1896-11-15 s.n. San Mateo Santa Cruz Peninsula. Spanish town Comment
  SEINET11941811  Abronia latifolia Unknown 1932-1 9119 San Mateo Half Moon Bay Comment
  CAS-BOT-BC451124  Acaena pinnatifida var. californica John Thomas Howell 1926-4-24 1915 San Mateo Daly City Comment
  POM141269  Acaena pinnatifida var. californica C. F. Baker 1902-5-1 688 San Mateo Crystal Springs Lake. 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
  UC638681  Acaena pinnatifida var. californica Ethel Crum 1932-4-17 1386 San Mateo South Coast Range, San Gregorio 121 Comment
  CAS-BOT-BC219606  Acanthomintha duttonii D. K. Gillespie 1930-4-21 9220 San Mateo Emerald Lake near Redwood City Comment
  CDA40752  Acanthomintha duttonii Polo Moreno 1989-8-2 s.n. San Mateo 1/4 mile southwest of intersection Highway 280 and Edgewood Road, west of Redwood City. 0 Comment
  CAS-BOT-BC333211  Acer macrophyllum Ira L. Wiggins 1925-4-1 1687 San Mateo First bridge across small creek on Kings Mountain Road above Woodside Comment
  CAS-BOT-BC333295  Acer macrophyllum Margaret A. Barry 1938-4-21 236 San Mateo Los Trancos Creek near Coal Mine Ridge Comment
  SEINET12234140  Acer macrophyllum Unknown 1932-1 8984 San Mateo Streams near Gov. Rolph Estate Comment
  UCD117104  Acer negundo R. E. Dengler 1960-4-20 17 San Mateo near Corte de Madera Creek, 0.5 mile from its drainage into Searseville Lake, Jasper Ridge, Stanford Biological Reserve. 375 Comment
  CAS-BOT-BC336919  Acer negundo var. californicum C. F. Baker 1902-4-6 472 San Mateo Crystal Springs Lake Comment
  UC484305  Acer negundo var. californicum Carl B. Wolf 1930-11-5 1809 San Mateo 4 mi w La Honda; Santa Cruz Mts., w of La Honda 91 Comment
  CAS-BOT-BC21581  Achillea millefolium Ned Cahill 1974-4-19 144 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC21586  Achillea millefolium Fred Hemphill 1973-5-14 807 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC21591  Achillea millefolium W. E. Lawrence; D. D. Keck 1933-5-11 L 5019 San Mateo Half Moon Bay Comment
  CAS-BOT-BC21596  Achillea millefolium John H. Thomas 1967-5-2 12801 San Mateo San Bruno Mountain. About 1/4 mile up Market St. from new school in canyon. Comment
  CAS-BOT-BC21600  Achillea millefolium Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  JEPS121480  Achillea millefolium Adam C. Schneider with C. Matt Guilliams 2013-4-7 94 San Mateo Crystal Springs Reservoir Comment
  SBBG25068  Achillea millefolium D. Myrick 1966-6-11 1446 San Mateo off Hwy 1, S of San Francisco near Pescadero Comment
  CAS-BOT-BC21578  Achillea millefolium John H. Thomas 1971-5-2 15819 San Mateo Near intersection of Canada Road and Edgewater [sic] Road, about three miles westward from Redwood City 152 Comment
  RSA15315  Achillea millefolium var. californica Carl B. Wolf 1927-4-3 s.n. San Mateo Los Troncos Creek, 2 miles back of Stanford University. Comment
  JROH458  Achyrachaena mollis John H. Thomas 1961-4-8 9071 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH468  Achyrachaena mollis John Hunter Thomas 1981-4-30 20514 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC336187  Achyrachaena mollis Kellogg and Harford San Mateo Plains of Sacramento 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
  JROH2059  Acmispon americanus var. americanus John H. Thomas 1974-10-26 17632 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2062  Acmispon americanus var. americanus John Hunter Thomas 1983-5-23 22245 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack side and low-flow crossing Comment
  JROH2064  Acmispon americanus var. americanus Carol Zabel 1989-9-4 37 San Mateo Jasper Ridge Biological Preserve, Stanford University; "Assembly area" by old docent center Comment
  JROH2085  Acmispon wrangelianus John H. Thomas 1956-4-7 5614 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2091  Acmispon wrangelianus John H. Thomas 1961-4-8 9075 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15213  Acmispon wrangelianus Toni Corelli 2012-4-13 800 San Mateo Pigeon Point Light Station, north of light station, bluff top west of Pigeon Point Road 8 Comment
  JROH3399  Actaea rubra Shaun Donovan 1972-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Redwood area along San Francisquito Creek Comment
  CAS-BOT-BC391680  Actaea rubra George Oberlander 1949-6-25 237 San Mateo San Francisco Watershed Reserve. Near San Andreas Lake Comment
  JROH478  Adenocaulon bicolor Volney Rattan 1867-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  LA27800  Adenostoma fasciculatum L. S. Rose; 1941-6-12 41270 San Mateo Rocky ridges, Emerald lake, hills W. of Redwood City 120.0 Comment
  SEINET191645  Adenostoma fasciculatum L. S. Rose 1941-6-12 41270 San Mateo Emerald Lake hills west of Redwood City. 120 Comment
  JROH3580  Adenostoma fasciculatum var. fasciculatum John Gillespie 1927-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1080550  Adiantum aleuticum S. S. Tillett and I. Sternback 1956-6-25 547 San Mateo just above entrance Portola State Park (cliffs along Patterson Creek, on Middleton property) 365 Comment
  JROH5909  Adiantum jordanii M. Ray 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail along San Francisquito Creek, near Redwood Grove Comment
  LA16623  Aesculus californica C. B. Wolf; 1934-11-13 6242 San Mateo Menlo Park, at Cambridge Ave. & Cornell Rd., NW of San Francisquito Creek 15 Comment
  RSA15244  Aesculus californica Carl B. Wolf 1927-2-17 205 San Mateo Los Trancos Creek, 2 miles back of Stanford University. Comment
  UC615561  Aesculus californica Beryl O. Schreiber 1932-5-29 313 San Mateo near San Mateo Comment
  UCR3560  Aesculus californica Wm. Horn Jr. 1963-6-10 630610- 2 San Mateo San Francisco Bay Region, Hillsborough [Burlingame], 2240 Redington Road 30 Comment
  CAS-BOT-BC29514  Agoseris Elizabeth McClintock 1965-4-25 s.n. San Mateo San Bruno Mountain, summit at Power Line Ridge Comment
  SD41371  Agoseris apargioides Edith A. Purer 1933-8-25 5515 San Mateo Sand dunes, near Skyline Drive. Comment
  SBBG7505  Agoseris apargioides var. eastwoodiae H. and M. Dearing 1938-6-21 2038 San Mateo Golden Gate Comment
  RSA18495  Agoseris grandiflora C. B. Wolf 1927-7-14 625 San Mateo 1 mile south of summit of Kings Mt on Skyline Drive. Comment
  CAS-BOT-BC22979  Agoseris grandiflora var. grandiflora Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Crocker Hills Comment
  POM292575  Agoseris heterophylla Arthur L. Cohen 1935-4-21 626 San Mateo Jasper Ridge 122 Comment
  JEPS129817  Agrostis exarata John Rawlings, Ken Hickman 2017-6-3 2095 B San Mateo Highway 92 west on ramp to Highway 280 north (Caltrans Right Way). Comment
  SACT000091  Agrostis exarata S. Smith, Malcolm Nobs 1949-8-25 San Mateo Comment
  SJSU15956  Agrostis exarata John Rawlings, Ken Hickman 2016-5-26 1833 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
  RSA119335  Agrostis microphylla S. S. Tillett, I. Sternback 1956-6-25 545 San Mateo On Middleton property S of road to Portola State Park, just before entrance; in secondary redwood forest. 396 Comment
  JROH4790  Agrostis pallens John Rawlings 2005-5-25 1039 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just inside Escobar gate south of Road F and east of the gate near the fenceline. 160 Comment
  JROH4805  Agrostis stolonifera Toni Corelli 2006-9-20 339 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Trail 12, upper embankment just above Corte Madera Creek. 108 Comment
  JROH4156  Ailanthus altissima John H. Thomas 1980-11-18 20172 San Mateo Jasper Ridge Biological Preserve, Stanford University 98 Comment
  JEPS101122  Aira caryophyllea Dean W. Taylor 1991-5-20 11787 San Mateo coastal bluffs near south bank of Pescadero Creek at Highway 1 9 Comment
  RSA145198  Aira caryophyllea John H. Thomas 1958-3-19 7050 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 30 Comment
  SEINET3917559  Aira caryophyllea Robert A. Norris 1984-3-21 4652 San Mateo W-facing slope, Blue blossom HIll, san Bruno Mts.; 0 357 Comment
  CAS-BOT-BC138236  Aira caryophyllea var. caryophyllea Phillip C. Wheeler 1965-5-17 s.n. San Mateo San Bruno Mountain. In Crocker Hills near Cow Palace. Comment
  CAS-BOT-BC445396  Alisma plantago-aquatica Margaret A. Barry 1937-6-27 174 San Mateo Mud Lakes on Coal Mine Ridge Comment
  JROH4302  Alisma triviale Toni Corelli 2005-8-10 301 San Mateo Jasper Ridge Biological Preserve, Stanford University; offshoot of main creek in wet area along new bridge near beginning of trail 12 109 Comment
  JROH4569  Allium John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4545  Allium amplectens John Hunter Thomas 1986-5-8 24028 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC467293  Allium dichlamydeum Elizabeth McClintock 1965-5-23 s.n. San Mateo Among low shrubs on slope below and east of Nike Station, above April Brook. Comment
  CAS-BOT-BC467294  Allium dichlamydeum Philip C. Wheeler 1965-5-8 s.n. San Mateo Sierra Point Comment
  JROH4552  Allium falcifolium John Hunter Thomas 1981-4-23 20473 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA40253  Allium falcifolium L. S. Rose 1948-5-16 48111 San Mateo Emerald Lake, west of Redwood City. 152 Comment
  UC766745  Allium falcifolium R. F. Hoover 1941-4-23 4907 San Mateo Redwood City hills 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
  POM196559  Allium lacunosum var. lacunosum H. L. Mason 1921-5-13 s.n. San Mateo Jasper Ridge near Sand Hill Caves Comment
  CAS-BOT-BC132031  Allium peninsulare var. franciscanum L. R. Abrams 1920-6-2 7502 San Mateo Back of Redwood City Comment
  SEINET5626583 Image available Allocarya chorisiana Unknown 1907-1 8439 San Mateo Near Lake Merced Comment
  JROH1324  Alnus rhombifolia John H. Thomas 1964-11-29 10539 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below dam Comment
  UC188946  Alopecurus saccatus Michener Sept 1891 124 San Mateo San Bruno Rd. Comment
  JEPS23931  Amaranthus californicus L. R. Abrams 1902-9-2 2995 San Mateo Crystal Lake Comment
Read comments
Sep 5 2011
  RSA121069A  Amaranthus deflexus J. T. Howell 1956-6-20 31631 San Mateo Along El Camino Real, San Carlos Comment
  RSA140626  Amaranthus deflexus John H. Thomas 1960-6-25 8784 San Mateo Redwood City, in vacant lot near Main and Stambaugh Streets Comment
  UCD97767  Amaranthus retroflexus John Thomas Howell 1978-7-18 53187 San Mateo McClellan residence, 1356 Bernal Ave., Burlingame. Comment
  CAS-BOT-BC44933  Ambrosia chamissonis David D. Keck 1931-10-5 1285 San Mateo 1 mile north of Salada Beach Comment
  OBI49178  Ambrosia chamissonis Lewis S. Rose 1938-8-14 38226 San Mateo El Granada 3 Comment
  UC1543058  Ambrosia chamissonis Donald G. Nelson 1938-7-28 579 San Mateo Moss Beach Comment
  RSA118964  Ambrosia chamissonis L. S. Rose 1956-8-13 56144 San Mateo San Mateo County, Princeton. 6 Comment
  RSA123305  Ambrosia chamissonis N. K. Carlson 1935-7-5 120 San Mateo [Unspecified] 0 Comment
  CAS-BOT-BC55526  Ambrosia psilostachya W. R. Dudley 1902-9-21 s.n. San Mateo On causeway over Crystal Springs Reservoir Comment
  RSA181301  Amelanchier pallida John H. Thomas 1965-5-15 10657 San Mateo Santa Clara County: Mt. Hamilton Range road banks 1 mile toward San Jose along the Hwy from Smith Creek. Comment
  JROH3596  Amelanchier utahensis John H. Thomas 1980-5-6 19935 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA385132  Ammophila arenaria Edith A. Purer 1933-7-27 18181 San Mateo 2 mi. S of Pigeon Pt. Comment
  JROH1340  Amsinckia intermedia John Hunter Thomas 1982-4-4 20821 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0089951  Amsinckia menziesii John H. Thomas 1966-4-29 11589 San Mateo Jasper Ridge Biological Experimental Area, 5 miles SW of Palo Alto. Comment
  UC24623  Amsinckia spectabilis Alice Eastwood April 1896 San Mateo Crystal Springs Comment
  HSC59829  Anagallis arvensis Clark L. Miller 1978-6-15 264 San Mateo 6 mi. S of Half Moon Bay, off Hwy. 1 on Verde Rd. 61 Comment
  UCD15059  Anagallis arvensis A. Bennett 1977-5-29 40 San Mateo California, San Mateo Co.; 0.7 miles north of Hayne Road intersection along Highway 35 (Burlingane); 60 Comment
  POM204322  Anaphalis margaritacea I. L. Wiggins 1929-7-4 3784 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  CAS-BOT-BC64291  Anaphalis margaritacea Delzie Demaree 1938-8-20 18061 San Mateo South San Francisco Comment
  CAS-BOT-BC45267  Ancistrocarphus filagineus LeRoy Abrams 1904-4-10 s.n. San Mateo Woodside to Crystla Springs at the junction of Redwood Rd. Comment
  CAS-BOT-BC391912  Anemone grayi A. D. E. Elmer 1903-4-1 4844 San Mateo King's Mountain Comment
  CAS-BOT-BC391922  Anemone grayi George Oberlander 1950-3-18 354 San Mateo San Francisco Watershed Reserve. On Cahill Ridge Comment
  RSA246844  Angelica hendersonii R. F. Thorne, P. Everett 1965-8-1 35077 San Mateo 21.5 miles S of Golden Gate Bridge. 69 Comment
  CAS-BOT-BC273177  Anisocarpus madioides L. R. A. 1902-5-20 2474 San Mateo Kings Mountain Comment
  CAS-BOT-BC273183  Anisocarpus madioides James I. McMurphy 1909-5-25 s.n. San Mateo La Honda Comment
  UC662642  Anisocarpus madioides L. S. Rose 1941-7-2 41287 San Mateo Kings Mountain 540 Comment
  CAS-BOT-BC273179  Anisocarpus madioides W. R. Dudley 1895-9-15 s.n. San Mateo Santa Cruz Mountain Peninsula. El Corte Madera Creek near Lumber Camp Comment
  CAS-BOT-BC273184  Anisocarpus madioides W. R. Dudley 1895-6-5 s.n. San Mateo Unspecified Comment
  JROH503  Anthemis cotula John Hunter Thomas 1978-7-14 19263 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the low flow crossing of San Francisquito Cr. Comment
  CAS-BOT-BC102287  Anthemis cotula Peter Rubtzoff; Patricia Fallon 1987-8-26 9839 San Mateo San Bruno Mountains. Saddle area on north side of Guadelupe Canyon. Comment
  CAS-BOT-BC102289  Anthemis cotula Elizabeth McClintock; Carlyn Halde; Walter Knight 1963-6-23 s.n. San Mateo Lower part of Colma Canyon Comment
  JROH509  Anthemis cotula John Hunter Thomas 1983-6-29 22698 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC280640  Anthoxanthum occidentale Elmer I. Applegate 1895-3-9 815 San Mateo Near summit of Coast range west of Stanford University Comment
  CAS-BOT-BC280647  Anthoxanthum occidentale L. R. A. 1902-1-7 2258 San Mateo Kings Mountain Comment
  CAS-BOT-BC280649  Anthoxanthum occidentale A. D. E. Elmer 1902-3-1 4124 San Mateo King's Mt. Comment
  SEINET3127888  Anthoxanthum odoratum Unknown 1902-6-7 2258 San Mateo Kings Mt Comment
  JROH196  Anthriscus caucalis John H. Thomas 1973-4-14 16554 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15411  Anthriscus caucalis Toni Corelli 2010-5-13 611 San Mateo Pedro Point Headlands, Pacifica CA; along Arroyo Trail 160 Comment
  JROH3601  Aphanes occidentalis John H. Thomas 1968-3-17 14195 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3608  Aphanes occidentalis John Hunter Thomas 1982-3-12 20806 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC454489  Aphanes occidentalis J. I. McMurphy 1906-5-8 s.n. San Mateo Crystal Springs Lakes, Santa Cruz Mountain Pennisula Comment
  SD1681  Aquilegia formosa Ulysses S. Grant IV June 1925 San Mateo La Honda Comment
  CHSC1435  Aquilegia formosa var. truncata J. Koopman 1929-5-11 San Mateo Moss Beach. Comment
  CHSC57096  Aquilegia formosa var. truncata Steven Triano 1988-5-24 206 San Mateo Along S side of Old La Honda Road ca 0.3 mi E of its jct. With La Honda Road. 365 Comment
  CAS-BOT-BC17318  Arabis blepharophylla Walter Knight; Irja Knight 1965-3-21 967 San Mateo San Bruno Mountains. On ridge near Brisbane power lines. Comment
  CAS-BOT-BC17332  Arabis blepharophylla Lewis S. Rose 1961-4-5 61032 San Mateo San Bruno Mountains. 365 Comment
  OBI15221  Arabis blepharophylla Lewis S. Rose 1961-4-5 61032 San Mateo San Bruno Mts 366 Comment
  UCR64488  Arabis blepharophylla Lincoln Constance, R. Bacigalupi, C. R. Bell 1951-3-25 s.n. San Mateo SE side of Colma Canyon 61 Comment
  SEINET5539301  Arabis filifolia H. S. Gentry 1931-1 San Mateo Comment
Read comments
Mar 12 2016
  RSA112474  Aralia californica Theo C. Zschokke 1903-7-10 s.n. San Mateo Goat Ranch Road, Corte de Madera Cr. Comment
  JROH1920  Arbutus menziesii John H. Thomas 1974-5-29 17397 San Mateo Jasper Ridge Biological Preserve, Stanford University; near riders' shack Comment
  UC762227  Arbutus menziesii R. F. Hoover 1941-2-12 4765 San Mateo nw of Saratoga Summit Comment
  CDA22357  Arceuthobium campylopodum E. L. Labadie 1959-10-16 San Mateo Nursery, Burlingame. 0 Comment
  UC83010  Arctostaphylos C. F. Baker 1902-5-10 817 San Mateo King's Mountain Comment
  SEINET11989294  Arctostaphylos S. W. Edwards 1982-1 s.n. San Mateo Foothill Park Comment
  RSA289982  Arctostaphylos andersonii Edward Lee 1936-1-26 1735 San Mateo King's Mountain Road, 4.7 miles from Woodside. East side of Cahill Ridge. Comment
  SEINET3410707 Image available Arctostaphylos andersonii Lewis S. Rose 1932-1-16 3214 San Mateo Brushy slopes, Kings Mt., San Mateo County, California. 640 Comment
  CAS-BOT-BC23501  Arctostaphylos crustacea Brandegee 1889-4-1 8 San Mateo Redwood City Comment
  CAS-BOT-BC23502  Arctostaphylos crustacea A. D. E. Elmer 1903-5-1 4558 San Mateo King's Mountain Comment
  CAS-BOT-BC23517  Arctostaphylos crustacea A. D. E. Elmer 1903-5-1 4558 San Mateo King Mt. Comment
  SEINET11988252  Arctostaphylos crustacea Unknown 1959-1 322 San Mateo 2.8 mi from junction Ca 5 on King's Mountain Rd Comment
  JROH1942  Arctostaphylos crustacea subsp. crustacea John Hunter Thomas 1983-7-20 22893 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1944  Arctostaphylos crustacea subsp. crustacea John Hunter Thomas 1987-4-30 24211 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC24490  Arctostaphylos imbricata William Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo Power Line Ridge, San bruno Mtn. Comment
  CAS-BOT-BC24500  Arctostaphylos imbricata James B. Roof 1961-4-18 s.n. San Mateo From ne. face of San Bruno Mountain, northern San Mateo Co. 335 Comment
  JEPS98830  Arctostaphylos imbricata James Roof May 1961 San Mateo San Bruno Mountain 400 Comment
  UCD166092  Arctostaphylos montaraensis Mike Vasey 2016-3-10 s.n. San Mateo North end of Montara Mtn on Brooks Cr. Tr., ca 1 mi. from trailhead, San Pedro County Park. 121 Comment
  UCD51754  Arctostaphylos montaraensis Roman Gankin 1966-5-17 740 B San Mateo On east-facing slopes of Montara Mountain. Comment
  SEINET11989109  Arctostaphylos montaraensis Unknown 1966-1 740 B San Mateo Montara Mountain Comment
  CAS-BOT-BC27197  Arctostaphylos pacifica James B. Roof 1961-4-18 s.n. San Mateo NE face of San Bruno Mountain 335 Comment
  RSA633499  Arctostaphylos pacifica Jon E. Keeley 1996-6-24 27573 San Mateo On knob below end of paved road at top of San Bruno Mountain. 350 Comment
  RSA0042504  Arctostaphylos pacifica Gary D. Wallace 1975-12-26 1517 San Mateo San Bruno Mountains, east slope, near parking lot at top of Radio Road. 396 Comment
  CAS-BOT-BC44703  Arctostaphylos regismontana Walter Knight; Roger Raiche 1982-1-23 4414 San Mateo Montara Mt. 304 Comment
  CAS-BOT-BC44739  Arctostaphylos regismontana L. R. Abrams 1902-1-12 2254 San Mateo Kings Mountain Comment
  CAS-BOT-BC44749  Arctostaphylos regismontana W. R. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs Reservoir Comment
  POM132205  Arctostaphylos regismontana A. D. E. Elmer 1903-03 4537 San Mateo Kings Mountain. Comment
  POM87727  Arctostaphylos regismontana L. R. Abrams 1902-1-12 2254 San Mateo Kings Mountain. Comment
  RSA636739  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24640 San Mateo NW side of Montara Mtn. 150 Comment
  RSA636745  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24628 San Mateo NW side of Montara Mtn. 150 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
  UC1120837  Arctostaphylos regismontana A. E. Wieslander and B. O. Schreiber 1940-3-5 8 San Mateo road from Woodside to King's Mt.; Santa Cruz Quadrangle 487 Comment
  UC311533  Arctostaphylos regismontana A. D. E. Elmer March 1903 4537 San Mateo King's Mountain Comment
  UC750515  Arctostaphylos regismontana Lewis S. Rose 1947-3-11 47028 San Mateo type locality Kings Mountain 609 Comment
  SEINET11989293  Arctostaphylos tomentosa S. W. Edwards 1982-1 s.n. San Mateo Foothill Park near summit of SW ridge Comment
  POM222790  Arctostaphylos tomentosa subsp. crustacea S. S. Berry 1909-2-27 s.n. San Mateo Jasper Ridge. 168 Comment
  RSA381043  Arctostaphylos tomentosa subsp. crustacea Roman Gankin 1959-2-22 322 San Mateo 2.8 miles from junction state hwy 5 on King's Mt. Road. Comment
  CAS-BOT-BC46831  Arctostaphylos uva-ursi Arthur Menzies; Elizabeth McClintock 1963-2-16 s.n. San Mateo Slope southeast of parking lot below top of mountain Comment
  CAS-BOT-BC46836  Arctostaphylos uva-ursi Walter Knight; Irja Knight 1965-2-28 864 San Mateo San Bruno Mt. Up Cable Ravine off Radis Road. Comment
  UCD51963  Arctostaphylos uva-ursi Robert F. Thorne 1963-6-9 32218 San Mateo Prostrate shrub in north coastal scrub on top of San Bruno Mt. near TV tower. Comment
  SEINET11987331  Arctostaphylos uva-ursi J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4212 San Mateo Strybing Arboretum, Golden Gate Park, San Francisco, orig. from San Bruno Mt., near Pacific Rock Comment
  SEINET11987303  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4201 San Mateo Strybing Arboretum, Golden Gate Park, San Francisco, orig. from San Bruno Mt 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
  SEINET11989209  Arctostaphylos uva-ursi var. suborbiculata E. McClintock, Knight, W.; Knight, I. 1982-1 4634 San Mateo windy Kamchatka Point, San Bruno Mountains Comment
  CAS-BOT-BC102182  Argyranthemum foeniculaceum Elizabeth McClintock 1988-6-7 s.n. San Mateo San Bruno Comment
  CAS-BOT-BC47696  Armeria maritima subsp. californica Alice Eastwood 1915-6-13 4712 San Mateo Granada Comment
  CAS-BOT-BC47702  Armeria maritima subsp. californica Adele Lewis Grant 1917-5-6 940 San Mateo Pebble Beach near Pescadero Comment
  RSA18369  Armeria maritima subsp. californica Carl B. Wolf 1927-6-29 539 San Mateo South of Pebble Beach near Pescadero. Comment
  RSA523911  Armeria maritima subsp. californica Gordon H. True Jr. 1936-6-7 485 San Mateo 4 miles S of Pescadero. 15 Comment
  UC1123303  Armeria maritima subsp. californica W. W. Akey 1935-5-28 24 San Mateo 1 1/2 mi n Bolsa POint; Santa Cruz Quadrangle Comment
  UCSB11750  Armeria maritima subsp. californica Olson, Jim 1962-4-13 San Mateo 1 mile south of Halfmoon Bay on U.S. Highway 101 15 Comment
  CAS-BOT-BC82519  Arnica discoidea John H. Thomas 1961-6-20 9558 San Mateo Portola State Park, near junction of Peters and Pescadero Creeks 152 Comment
  POM190257  Arnica discoidea D. D. Keck 1932-5-11 1775 San Mateo East side of Kings Mountain, on Kings Mountain Road 350 Comment
  RSA116788  Artemisia biennis Roxana S. Ferris 1924-10-6 4096 San Mateo Searville Lake on Portola Hwy. Comment
  CAS-BOT-BC84884  Artemisia californica Walter Knight; Irja Knight 1963-7-14 297 San Mateo San Bruno Mountain, ridge above Buckeye Canyon Comment
  POM288963  Artemisia californica Lyman Benson 1928-11-25 785 San Mateo Stanford Univ-- Lake Searsville. Santa Cruz Mts. 152 Comment
  CAS-BOT-BC93929  Artemisia douglasiana Peter H. Raven 1957-9-1 11296 San Mateo Coastal bluffs 1.1 mi. s. of Pigeon Point Lighthouse Comment
  CAS-BOT-BC93935  Artemisia douglasiana Gordon H. True 1937-7-23 803 San Mateo Along Salada Beach - Skyline Blvd. Road Comment
  CAS-BOT-BC93938  Artemisia douglasiana Ira L. Wiggins 1975-8-5 22175 San Mateo Bed of San Francisquito Creek, ca 100 m above Pope Street bridge, San Mateao County side of Santa Clara-San Mateo Comment
  HSC4721  Artemisia douglasiana L. S. Rose 1969-8-8 69090 San Mateo Skyline Blvd. and Half Moon Bay Rd; Cahill Ridge 244 Comment
  CAS-BOT-BC93879  Artemisia dracunculus W. R. Dudley 1897-11-12 s.n. San Mateo San Francisquito Creek below Los Trancas Creek Comment
  CAS-BOT-BC400511  Asarum caudatum A. D. E. Elmer 1903-6-1 4421 San Mateo Butano Creek Comment
  POM268915  Asclepias cordifolia Lyman Benson 1930-5-3 s.n. San Mateo Above Woodside, La Honda Grade 244 Comment
  POM57741  Aster chilensis B. Greene 1901-10-20 59 San Mateo Summit of Coast Range Comment
  POM56936  Aster radulinus C. F. Baker 1902-9-15 1546 San Mateo Black Mt. Comment
  CAS-BOT-BC478065  Asteraceae H. A. Dutton 1900-5-6 s.n. San Mateo Santa Cruz Mountain Peninsula, Woodside 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
  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
  JROH1989  Astragalus gambelianus John H. Thomas 1967-5-10 12841 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1057449  Astragalus gambelianus G. Thomas Robbins 1937-4-11 98 San Mateo near Spring Valley Lakes (along road to Woodside); near Spring Valley Lakes, along road to Woodside Comment
  CAS-BOT-BC389705  Astragalus nuttallii L. Sigal 1969-8-11 s.n. San Mateo Pillar Point Comment
  POM16331  Astragalus nuttallii C. F. Baker 1903-6-30 3358 San Mateo Pillar Point Comment
  CAS-BOT-BC194427  Astragalus nuttallii var. virgatus Daniel Cohen 1953-5-9 98 San Mateo Beach at Pescadero Comment
  CAS-BOT-BC194429  Astragalus nuttallii var. virgatus Copeland 1905-6-3 3299 San Mateo Montara Pt. 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-BC193090  Astragalus pycnostachyus var. pycnostachyus C. F. B. 1902-10-1 1744 San Mateo Pillar Point Comment
  CAS-BOT-BC193097  Astragalus pycnostachyus var. pycnostachyus J. W. Congdon 1897-8-11 s.n. San Mateo San Gregorio Comment
  UC1128872  Astragalus pycnostachyus var. pycnostachyus G. E. Sindel 1935-7-25 298 San Mateo 2 mi nnw Pescadero; Santa Cruz Quad., nnw of Pescadero Comment
  CHSC57076  Atriplex leucophylla Steven Triano 1988-5-24 201 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  SEINET4135307  Atriplex leucophylla L. Thorne, N. Thorne 1990-7-4 1 San Mateo Half Moon Bay Harbor.; 0 Comment
  POM177453  Atriplex subspicata L. R. Abrams, I. Wiggins 1930-11-13 177 San Mateo Junction of Skyline Blvd. and Coast Road near Colma. Comment
  RSA254228  Avena barbata Robert A. Norris 1975-3-21 2289 San Mateo Hilly grassland near Crocker Ave., San Bruno Mts. Comment
  CAS-BOT-BC145999  Avena fatua John H. Thomas 1971-5-2 15869 E San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City. 152 Comment
  SEINET10528168  Avena occidentalis Unknown Anonymous s.n. San Mateo Dry hill, Millbrae Meadows. Comment
  JROH6  Azolla filiculoides Lawrence J. Winship 1974-11-16 16 San Mateo Jasper Ridge Biological Preserve, Stanford University. On and below Searsville Dam Comment
  CAS-BOT-BC98700  Baccharis douglasii John Thomas Howell 1926-10-9 2217 San Mateo Near Lake San Andreas Comment
  POM308447  Baccharis douglasii Henry J. Ramsey, Henry J. Ramsey 1939-10-7 3060 San Mateo San Mateo Comment
  JROH539  Baccharis glutinosa John Hunter Thomas 1981-9-24 20751 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH544  Baccharis glutinosa John Hunter Thomas 1988-10-17 24593 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  SJSU15816  Baccharis glutinosa John Rawlings, Ken Hickman 2016-7-21 1901 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-BC99519  Baccharis pilularis John H. Thomas 1976-10-7 18397 San Mateo Along coast highway #1, 0.6 miles north of northern most road to Pigeon Pt. Lighthouse. About 4.2 miles almost due south 30 Comment
  CAS-BOT-BC99522  Baccharis pilularis Ned Cahill 1974-4-30 240 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JEPS85567  Baccharis pilularis Craig Dremann 1986-9-13 332 San Mateo near, stage rd half-way between San Gregorio and Pomponio Cr. along rdside San Gregorio Comment
  UC942901  Baccharis pilularis Lewis S. Rose 1949-9-20 49182 San Mateo Sharp Park Comment
  UCR240609  Baccharis pilularis T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3527 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  JROH552  Baccharis pilularis subsp. consanguinea John H. Thomas 1978-9-24 19336 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC16633  Barbarea orthoceras Walter Knight; Irja Knight 1965-3-14 933 San Mateo San Bruno Mountain. Manzanita Dyke north of mountain summit. Comment
  CAS-BOT-BC16643  Barbarea orthoceras George Oberlander 1949-4-30 94 San Mateo San Francisco Watershed Reserve. North boundary. Comment
  JROH1454  Barbarea orthoceras John Hunter Thomas 1989-4-20 24643 San Mateo Jasper Ridge Biological Preserve, Stanford University; to below the dam Comment
  UCR271407  Barbarea orthoceras John F. Emmel 2001-4-21 1697 San Mateo Central Coast, Montara Mountain, along utility line clearing in drainage between North Peak and South Peak, 0.2 air mile north and 0.0-0.1 air mile east of the summit of South Peak 518 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
  UC1191421  Bassia hyssopifolia Malcolm A. Nobs and S. Galen Smith 1949-8-27 1617 San Mateo salt marshes e Redwood City Comment
  JROH3923  Bellardia trixago John Hunter Thomas 1985-5-2 23582 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3931  Bellardia trixago Toni Corelli 2004-4-22 272 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 9 between trail c and trail 10 on both sides of trail 190 Comment
  RSA152071  Bellardia trixago John H. Thomas 1961-5-5 9223 San Mateo Along Sandhill road about 3.5 miles westward from Stanford Univ. 91 Comment
  CAS-BOT-BC100192  Bellis perennis Elizabeth McClintock 1967-9-24 s.n. San Mateo Crocker Avenue Comment
  SJSU946  Berberis darwinii W. M. Bybee 1948-2-20 San Mateo grounds of residence, Burlingame Comment
  RSA681565  Berberis nevinii Annuschka Deb 1989-4-14 88 San Mateo YBN Demonstration Garden Comment
  CAS-BOT-BC75879  Berberis pinnata G. Edelbrock 1975-3-21 021 San Mateo On ridge at end of Crocker Street, San Bruno Mountain. 152 Comment
  JROH1322  Berberis pinnata subsp. pinnata John Rawlings 2007-4-1 0909 San Mateo Jasper Ridge Biological Preserve, Stanford University. Intersection Trail 1 and Trail 5. 84 Comment
  CAS-BOT-BC100316  Blennosperma nanum var. robustum Walter Knight; Irja Knight 1965-4-25 1043 San Mateo Owl's Canyon Comment
  RSA130356  Boisduvalia densiflora Roxana S. Ferris 1930-9-3 2044 San Mateo Santa Cruz Mountain Peninsula: Upper Mud Lake. Coal Mine Ridge Comment
  SJSU15760  Bolboschoenus maritimus subsp. paludosus Toni Corelli 2009-9-22 430 San Mateo Pomponio State Beach west of Hwy. 1 4 Comment
  CAS-BOT-BC95345  Bowlesia incana George Oberlander 1950-5-21 963 San Mateo Southern boundary of San Francisco Watershed Reserve Comment
  CAS-BOT-BC420227  Boykinia occidentalis W. R. Dudley 1895-6-6 s.n. San Mateo Banks of Pescadero Creek above Iverson's Comment
  JROH5658  Brachypodium sylvaticum John Rawlings 2014-7-23 1267 San Mateo Jasper Ridge Biological Preserve, Stanford University; along downhill verge of Rd G between Rd C and the first small drainage crossing Rd G 108 Comment
  UCR162537  Brachypodium sylvaticum John Beall 2003-12-4 s.n. San Mateo Santa Cruz Mtns., Woodside, on Hwy 84 at Grandview Dr., about 1 mile from Skyline Road summit 427 Comment
  UCD170111  Brachypodium sylvaticum R. Breckenridge; K. Filippini 2010-11-22 s.n. San Mateo Found across a number of properties in Woodside. Comment
  CAS-BOT-BC30268  Brassica nigra R. Bacigalupi 1946-7-6 2794 San Mateo Near junction of Belmont-Las Pulgas roads, close to Crystal Springs Lake. Comment
  CAS-BOT-BC36795  Brassica rapa Catherine A. Toschi 1963-2-23 63 :30 San Mateo North slope San Bruno Mountains above Crocker Avenue. 137 Comment
  CAS-BOT-BC36798  Brassica rapa Daniel Cohen 1953-5-9 71 San Mateo Top of sea cliff at Pescadero. Comment
  CAS-BOT-BC145495  Briza maxima John R. Barth 1963-5-23 42 San Mateo Pebble Beach. Comment
  JROH4867  Briza maxima John Hunter Thomas 1982-9-12 21156 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4890  Briza minor W. Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9, halfway to top Comment
  UC306623  Briza minor A. D. E. Elmer May, 1903 4912 San Mateo Crystal Springs Lake Comment
  UCSB841  Brodiaea coronaria Walker, Clifford 1954-4-20 San Mateo Corner of Jefferson and Canada Rds. Comment
  SEINET3559685 Image available Brodiaea laxa Lewis S. Rose 1933-5-17 33169 San Mateo Redwood City. Comment
  JROH4586  Brodiaea terrestris subsp. terrestris Elmer I. Applegate 1895-5-11 700 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA594916  Bromus John H. Thomas 1962-4-24 9848 San Mateo San Bruno Mountan in northern part of county. 305 Comment
  POM286980  Bromus carinatus Lyman Benson 1930-5-1 2059 San Mateo Stanford University. San Lorenzo Mt. Range. 122 Comment
  RSA159425  Bromus carinatus John H. Thomas 1961-5-14 9374 B San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  SEINET3128654  Bromus carinatus L. R. Abrams 1902-5-11 2462 San Mateo Carplot Springs Comment
  SJSU7534  Bromus carinatus Lewis S. Rose 1963-4-27 63003 San Mateo Skyline Blvd W of San Mateo 91 Comment
Read comments
Oct 16 2013
  UCD164091  Bromus carinatus Peter Rubtzoff 1978-4-2 9152 San Mateo San Bruno Mountains.'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC148993  Bromus carinatus var. carinatus John H. Thomas 1974-5-9 17331 San Mateo San Pedro Valley. Northern part of county, inland from Pacifica. 152 Comment
  CAS-BOT-BC148994  Bromus carinatus var. carinatus A. G. Vestal 1925-6-13 s.n. San Mateo North Palo Alto. Pope Street. Comment
  CAS-BOT-BC149017  Bromus carinatus var. carinatus E. McClintock; Phillip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. Slope below Nike Station. Comment
  CAS-BOT-BC149019  Bromus carinatus var. carinatus R. E. Frenkel 1963-12-7 327 San Mateo San Francisco Water District. Whiting Ridge Road, ca. 0.8 mile southwest of Spring Valley Road, at Fire Warden's Gate. Comment
  CAS-BOT-BC149020  Bromus carinatus var. carinatus R. E. Frenkel 1964-8-21 758 San Mateo On Portola Ridge Road, 0.7 mile north of Sawyer Ridge Road, SFWD. 320 Comment
  JROH4900  Bromus carinatus var. carinatus John Rawlings 2013-4-16 1136 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along the Escobar Gate fenceline about 100 m east of the gate 149 Comment
  UC1755115  Bromus catharticus Dean W. Taylor 1988-3-30 9492 San Mateo San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest; right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain 176 Comment
  CAS-BOT-BC155720  Bromus diandrus George Oberlander 1949-5-13 188 San Mateo San Francisco Watershed Reserve. San Andreas Valley. Comment
  JROH4912  Bromus diandrus John Rawlings 2013-3-23 1130 San Mateo Jasper Ridge Biological Preserve, Stanford University. Where the brick path ends at the visitor parking lot from the Sun Field Station. 120 Comment
  RSA254230  Bromus diandrus Robert A. Norris 1975-3-31 2286 San Mateo Near Crocker Avenue, San Bruno Mountains. Comment
  UCD164419  Bromus diandrus Peter Rubtzoff 1977-6-21 9056 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon area. Comment
  JROH4914  Bromus hordeaceus John H. Thomas 1958-5-10 7151 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4924  Bromus hordeaceus John Hunter Thomas 1984-4-24 23303 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5637  Bromus hordeaceus John Rawlings 2014-6-2 1254 San Mateo Jasper Ridge Biological Preserve, Stanford University. Around Caretaker's Residence 106 Comment
  RSA195568  Bromus hordeaceus John H. Thomas 1966-4-24 11580 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  UCD58965  Bromus madritensis Rimo Bacigalupi; L. Heckard 1961-5-14 7700 San Mateo Near southern end of Crystal Springs Lake. Along Canada Road. 95 Comment
  UCD58971  Bromus madritensis Beecher Crampton 1962-6-11 6485 San Mateo 5 miles west of Belmont, junction Ralston Ave. and Skyline Blvd. Comment
  CAS-BOT-BC162227  Bromus maritimus John H. Thomas 1963-7-19 10196 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles northwest of Santa Cruz. Comment
  RSA18330  Bromus maritimus C. B. Wolf 1929-5-10 3705 San Mateo coast at Pigeon Pt. So. of Pescadero Comment
  CAS-BOT-BC162009  Bromus racemosus George Oberlander 1950-4-25 767 San Mateo San Francisco Watershed Reserve. San Andreas Valley. Comment
  SEINET10933427  Bromus rigidus Delzie Demaree 1932-5-12 Demaree 9128 San Mateo Stanford Farm. Dry situations. Comment
  RSA320908  Bromus rubens Robert A. Norris 1984-3-21 4655 San Mateo Blue Blossom Hill, San Bruno Mts. 366 Comment
  OBI22458  Bromus sitchensis Lewis S. Rose 1963-4-27 63003 San Mateo Skyline Blvd, W of San Mateo 91 Comment
  JROH4963  Bromus sterilis John Rawlings 2013-4-10 1145 A San Mateo Jasper Ridge Biological Preserve, Stanford University; near power poles in partial shade on Rattlesnake Rocks trail off of Rd. D 131 Comment
  UC1131105  Bromus vulgaris N. K. Carlson 1935-6-2 76 San Mateo Ridge between Oil Creek and Slate Creek 670 Comment
  SEINET12004682  Cakile edentula subsp. edentula E. H. Graham 1931-1 6940 San Mateo Ano Nuevo Pt., S of San Francisco Comment
  CAS-BOT-BC36868  Cakile edentula var. edentula W. R. Dudley 1893-1-1 s.n. San Mateo Santa Cruz Peninsula. Beach near Spanishtown. Comment
  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
  CAS-BOT-BC36959  Cakile maritima var. maritima Elsie Zeile 1946-7-1 s.n. San Mateo Montara. Comment
  JROH4972  Calamagrostis koelerioides John H. Thomas 1962-7-15 9913 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oak woodland near northern end of ridge Comment
  POM199095  Calamagrostis nutkaensis A. D. E. Elmer 1903-05 5040 San Mateo San Pedro Comment
  CAS-BOT-BC438534  Calandrinia ciliata Catherine A. Toschi 1963-2-23 63 :36 San Mateo North slope San Bruno Mountains above Crocker Avenue 152 Comment
  CAS-BOT-BC438533  Calandrinia ciliata Philip C. Wheeler 1965-5-12 s.n. San Mateo San Bruno Mountain. Pig Ranch Ravine. Comment
  JROH1632  Callitriche marginata John H. Thomas 1968-3-17 14193 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC492166  Calochortus albus Fred Hemphill 1973-5-14 802 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH4605  Calochortus albus John H. Thomas 1976-5-26 18152 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC672162  Calochortus albus Herbert L. Mason 1924-5-18 1017 San Mateo Jasper Ridge, near zoology club Jasper Ridge Comment
Read comments
Sep 19 2011
  UCD23297  Calochortus albus Alan T. Whittemore 1976-5-29 118 San Mateo San Francisco Fish and Game Refuge. East side of Lower Crystal Springs Lake, on Sawyer's Camp Road, between L. San Andreas and Crystal Springs Lake. 100 Comment
  UCR121570  Calochortus albus George K. Helmkamp, E. A. Helmkamp 1999-6-28 5000 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  CAS-BOT-BC492203  Calochortus albus W. R. Dudley 1894-4-21 s.n. San Mateo Side of hill near San Mateo ravine Comment
  CAS-BOT-BC492204  Calochortus albus Josephine D. Randall 1907-6-8 219 San Mateo Redwood Grove in Portola Valley Comment
  JROH4630  Calochortus luteus John H. Thomas 1969-5-28 15089 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC491979  Calochortus luteus Otto M. Sokol 1953-5-29 113 San Mateo Near Sharon Estate, along Sand Hill Road Comment
  CAS-BOT-BC491991  Calochortus luteus Marion Ownbey; Ruth P. Ownbey 1938-7-7 1699 San Mateo Santa cruz Mts., above Searsville Lake Comment
  SEINET12044176  Calochortus luteus L. S. Rose 1933-1 33255 San Mateo Crystal Springs Lake Comment
  POM292441  Calochortus tolmiei Lyman Benson 1930-5-3 2107 San Mateo Above Woodside, Mt. Range: Santa Cruz 244 Comment
  CAS-BOT-BC496830  Calochortus tolmiei David D. Keck 1932-5-11 1496 San Mateo Above Woodside on La Honda road, east slope of Santa Cruz Mtn. Comment
  CAS-BOT-BC494043  Calochortus venustus L. R. Abrams 1915-6-7 5242 San Mateo Woodside to Crystal Springs road, near whipple Road Comment
  CAS-BOT-BC494044  Calochortus venustus A. D. E. Elmer 1903-7-1 4763 San Mateo Portola Comment
  JEPS23958  Calycadenia multiglandulosa John H. Thomas 1959-8-22 8077 San Mateo about 5 mi sw of Palo Alto (Jasper Ridge); Jasper Ridge 152 Comment
  JROH557  Calycadenia multiglandulosa John H. Thomas 1958-11-22 7506 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH561  Calycadenia multiglandulosa John H. Thomas 1967-11-5 14128 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH562  Calycadenia multiglandulosa John H. Thomas 1967-11-5 14128 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC224649  Calystegia purpurata subsp. purpurata George Oberlander 1949-7-24 308 San Mateo San Franciso Watershed Reserve. Sawyer Ridge Comment
  CAS-BOT-BC224655  Calystegia purpurata subsp. purpurata Theo. C. Zschokke 1903-7-10 s.n. San Mateo Santa Cruz Mountain Peninsula. Goat Ranch Road, Corte de [Corte] Madera Cr. 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-BC224647  Calystegia purpurata subsp. purpurata Mary Helen Kelson 1956-6-2 229 San Mateo Page Mill Road, 3 miles from Skyline Boulevard 213 Comment
  SD38402  Calystegia subacaulis Edith A. Purer 1933-5-30 3641 San Mateo Spring Valley Lakes. Comment
  POM271878  Camissonia ovata Arthur L. Cohen 1935-4-21 632 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  CAS-BOT-BC160320  Camissoniopsis cheiranthifolia subsp. cheiranthifolia E. M. Zeile 1921-7-31 s.n. San Mateo Salada Comment
  CAS-BOT-BC160327  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Robt. T. Orr 1961-6-27 s.n. San Mateo [Ano] Ano Nuevo Island Comment
  UCSC007726  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  RSA17965  Campanula prenanthoides C. B. Wolf 1927-7-13 714 San Mateo La Honda Grade. Santa Cruz Mountains Comment
  RSA18502  Campanula prenanthoides C. B. Wolf 1927-7-14 618 San Mateo Summit of Kings Mountain Rd. Comment
  SEINET10463021  Campanula prenanthoides Wolf 1927-7-14 WOLF 618 San Mateo SUMMIT OF KINGS MTN ROAD Comment
  SEINET10840319  Campanula prenanthoides Ira L. Wiggins 1929-7-4 Wiggins 3779 San Mateo Moist ravine 4 miles west of La Honda on hill road to Pescadero Beach Comment
  RSA187412  Capsella bursa-pastoris John H. Thomas 1965-4-29 10601 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  CAS-BOT-BC37160  Capsella bursa-pastoris Walter Knight; Irja Knight 1964-4-13 634 San Mateo San Bruno Mountains. Power Line Ridge. Comment
  SEINET5542273  Capsella bursa-pastoris H. S. Gentry 1931-1 77 San Mateo 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC37656  Cardamine californica W. R. Dudley 1893-4-1 s.n. San Mateo Santa Cruz Peninsula. Ravine near La Honda. Comment
  CAS-BOT-BC37673  Cardamine californica John H. Thomas 1958-2-15 6982 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 182 Comment
  CAS-BOT-BC37680  Cardamine californica Kellogg 1870-3-27 s.n. San Mateo San Mateo road to Crystal Springs. Comment
  CAS-BOT-BC37690  Cardamine californica Oliver W. Norvell 1931-2-28 1356 San Mateo Kings Mountain Grade. Comment
  JROH1486  Cardamine californica John Hunter Thomas 1987-4-7 24176 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM272922  Cardamine californica var. integrifolia Lyman Benson 1931-2-28 2614 San Mateo Town: Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 183 Comment
  UC136067  Cardamine californica var. sinuata C. F. Baker 1902-4-12 501 San Mateo La Honda Comment
  CAS-BOT-BC37989  Cardamine oligosperma Alice Eastwood 1933-4-30 s.n. San Mateo Lake Pilarcitos. Comment
  JROH1490  Cardamine oligosperma L. R. Abrams 1916-3-26 5586 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  CAS-BOT-BC167120  Cardamine oligosperma Peter Rubtzoff 1977-4-14 8946 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, northwest of Fog Forest. Comment
  JROH581  Carduus pycnocephalus subsp. pycnocephalus John Hunter Thomas 1981-5-8 20567 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA6893  Carduus tenuiflorus W. S. Ball 1946-4-19 San Mateo 5 miles below Half Moon Bay. 0 Comment
  HSC24047  Carduus tenuiflorus Mary Katherine Wicksten 1971-7-15 26 San Mateo Huddart Park Comment
  UCD166155  Carex Jack Major; M. Forde and S. Bamberg 1962-4-3 739 San Mateo Above Coastways Ranch on Finney Creek. (Exact location unknown. Coordinates estimated by label maker). Comment
  CAS-BOT-BC18186  Carex W. R. Dudley 1899-4-13 s.n. San Mateo San Francisquito Creek below Cedro Cottage Bridge, Stanford University. Comment
  NY38978  Carex aequa E. L. Greene 1902-5-10 811 San Mateo Crystal Springs Lake Comment
  UC822664  Carex amplifolia H. A. Borthwick 1920-5-18 157 San Mateo Sierra Morena Santa Cruz Mountain Peninsula, Sierra Morena Comment
  SEINET7484300 Image available Carex barbarae Peter F. Zika 2010-1 24798 San Mateo Pescadero Road, c. 1 mile SE of Route 1 10 Comment
  CAS-BOT-BC34076  Carex brevicaulis Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5250 San Mateo Tunitas. Comment
  CAS-BOT-BC34071  Carex brevicaulis W. R. Dudley 1900-3-17 s.n. San Mateo The Santa Cruz Mountain Peninsula. Field north of Seal Cove. Comment
  CAS-BOT-BC34072  Carex brevicaulis John Thomas Howell 1965-3-29 41035 San Mateo West end of summit ridge of San Bruno Mountain. 396 Comment
  CAS-BOT-BC18921  Carex densa Alice Eastwood; John Thomas Howell 1937-5-7 4327 San Mateo Visatacion Valley. Comment
  CAS-BOT-BC18926  Carex densa W. R. Dudley 1894-5-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside to Crystal Springs. Comment
  UCD140267  Carex densa Alice Eastwood; John Thomas Howell 1937-5-7 4327 San Mateo Visatacion Valley. Comment
  CAS-BOT-BC19944  Carex exsiccata W. R. Dudley 1894-5-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Between Woodside and Crystal Springs. Comment
  JEPS67915  Carex gracilior L. R. Heckard and J. H. Thomas 1972-4-16 2899 San Mateo ca. 1 1/2 mi s Pulgas Water Temple (along Old Canada Road, sw of Upper Crystal Springs Reservoir); Old Canada Road 121 Comment
  CAS-BOT-BC21811  Carex harfordii Lewis S. Rose 1935-5-29 35194 San Mateo Kings Mountain. Comment
  CAS-BOT-BC21816  Carex harfordii Alice Eastwood; John Thomas Howell 1938-6-26 6056 San Mateo Near Pescadero. Comment
  SBBG29952  Carex harfordii J. T. Howell 1938-5-1 13781 San Mateo near South San Francisco Comment
  CAS-BOT-BC227873  Carex harfordii Elizabeth McClintock; Paul Reeberg 1989-5-23 s.n. San Mateo San Bruno Mountains. In Wax Myrtle Ravine 121 Comment
  RSA789960  Carex harfordii Peter Rubtzoff 1975-5-21 7968 San Mateo San Bruno Mtns: Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  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-BC176400  Carex obnupta Peter Rubtzoff 1976-6-30 8711 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC117643  Carex serratodens LeRoy Abrams 1902-5-4 2425 San Mateo Woodside. Comment
  CAS-BOT-BC117644  Carex serratodens LeRoy Abrams 1902-5-4 2425 San Mateo Woodside. Comment
  POM79433  Carex serratodens C. F. Baker 1902-5-10 811 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC116822  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5256 San Mateo Pescadero Comment
  CAS-BOT-BC176395  Carex tumulicola Peter Rubtzoff 1975-5-21 7974 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH4370  Carex tumulicola John Hunter Thomas 1981-4-30 20517 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM181655  Carpobrotus chilensis H. F. Copeland 1928-2-26 1034 San Mateo Montara Comment
  UCSC007729  Carpobrotus chilensis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  SEINET12028934  Castanopsis chrysophylla W. Knight, Raiche, R. 1982-1 4422 San Mateo Montara Mtn 305 Comment
  RSA10376B  Castilleja affinis H. A. Barker 1926-5-1 606 San Mateo Kings Mt. Comment
  UCSC000665  Castilleja affinis H. S. Yates 1935-3-2 5010 San Mateo 0.5 mile S.E. of Pigeon Pt. Pigeon Pt - Santa Cruz 30 Comment
  JEPS60420  Castilleja affinis subsp. affinis T. I. Chuang and F. M. Chuang 1969-6-21 6661 San Mateo about 2 mi s Half Moon Bay road junction with Skyline Boulevard Comment
  JEPS6916  Castilleja affinis subsp. affinis Rimo Bacigalupi with J. R. Sweeney 1954-8-3 4741 San Mateo about 0.75 mi w Skyline Boulevard (upper part of Tunitas Canyon road, w slopes of Kings Mountain); Kings Mountain 579 Comment
  JEPS88802  Castilleja affinis subsp. affinis T. I. and F. M. Chuang 1991-7-3 7861 San Mateo 1 mi s Linda Mar (on Highway 1) Comment
  JEPS88803  Castilleja affinis subsp. affinis T. I. and F. M. Chuang 1991-6-29 7852 San Mateo just s Pescadero State Beach (on Highway 1) Comment
  JROH5776  Castilleja affinis subsp. affinis John Rawlings 2016-3-22 1700 San Mateo Jasper Ridge Biological Preserve, Stanford University; near high point of steep serpentinite bank south of Bear Creek 95 Comment
  UC1032440  Castilleja affinis subsp. affinis H. S. Yates 1935-5-8 5201 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. 579 Comment
  JEPS103890  Castilleja affinis subsp. affinis T. I. Chuang and F. M. Chuang 1991-7-3 7861 San Mateo 1 mile S of Linda Mar, on highway 1 Comment
  UC103163  Castilleja ambigua subsp. ambigua Katharine Brandegee 1905-6-20 San Mateo near Half Moon Bay; Moss Beach Comment
  UC406881  Castilleja ambigua subsp. ambigua David D. Keck 1927-6-10 394 San Mateo Montara Point; Radio Station 0 Comment
  JROH3964  Castilleja attenuata John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS86228  Castilleja densiflora subsp. densiflora L. R. Heckard 1970-5-5 2453 San Mateo Brisbane, ne edge of San Bruno Mountain San Bruno Mountain Comment
  UCSB18232  Castilleja densiflora subsp. densiflora Muirhead, M. 1964-4-17 San Mateo Crocker Estate, Hillsborough 76 Comment
  SBBG54568  Castilleja exserta F. W. Pennell, D. D. Keck 1940-5-15 25418 San Mateo E of upper Crystal Springs, SW of San Mateo Comment
  POM176909  Castilleja foliolosa L. R. Abrams 1904-4-1 10 San Mateo Near Crystal Springs Lake, Santa Cruz Mts. Comment
  SD38143  Castilleja foliolosa Delzie Demaree 1932-4-9 8973 San Mateo Dry hillsides. Gov. Rolf Estate Comment
  RSA428380B  Castilleja franciscana J. Doty 1969-3-26 595 San Mateo 100 yards E of jct Hwy 35 and 92, near summit of Caost Range, San Francisco Peninsula. Comment
  CAS-BOT-BC243836  Castilleja latifolia Francis W. Pennell 1940-6-29 26032 San Mateo Route 5, 13-14 mi. south of San Francisco 457 Comment
  UCR139352  Castilleja lithospermoides David D. Keck 1932-5-6 1493 San Mateo San Francisco Bay Region, east side of Crystal Springs Lake 60 Comment
  OBI9362  Castilleja rubicundula Lewis S. Rose 1966-5-2 66034 San Mateo Emerald Lake, W of Redwood City 91 Comment
  JROH3998  Castilleja rubicundula subsp. lithospermoides John H. Thomas 1974-4-25 17197 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge near the Searsville end Comment
  JROH4002  Castilleja rubicundula subsp. lithospermoides John Hunter Thomas 1980-5-6 19930 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4010  Castilleja rubicundula subsp. lithospermoides John Hunter Thomas 1989-5-11 24729 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS47427  Castilleja subinclusa subsp. franciscana L. R. Heckard 1964-7-26 1425 San Mateo 0.4 mi from Lobitos Creek rd. jct. rd. with Verde Road (old highway) (above Lobitos Creek valley) Comment
  SEINET7063807  Castilleja tenuis A. G. Vestal 1947-4-24 s.n. San Mateo Enclosure at jasper Ridge. UTM Zone 10, 568421mE, 4140420mN. (WGS84/NAD83). 174 Comment
  JEPS78275  Castilleja wightii L. R. Heckard with T. I. Chuang and Mike Morris 1979-6-21 5116 San Mateo s end Adobe Avenue, San Pedro Valley (below Eucalyptus grove); San Pedro Valley Comment
  RSA428367  Castilleja wightii E. S. Spalding 1924-6-28 s.n. San Mateo Moss Beach Comment
  UC1327236  Castilleja wightii John T. Doyen 1966-3-28 37 San Mateo San Bruno Mountains; near Radio Towers on top Comment
  UC1713545  Castilleja wightii Katharine Brandegee 1917-7-29 San Mateo Tunitas Station; Ocean Shore R.R. Comment
  UC198264  Castilleja wightii Katharine Brandegee 1917-7-22 San Mateo Mussel Rock Station, Ocean Shore Railroad Comment
  JEPS34454  Castilleja wightii L. R. Heckard 1963-7-18 1342 San Mateo 2 mi sw (below) La Honda to Skylonda road junction with Skyline Blvd. (along La Honda road from Skylonda to La Honda) 365 Comment
  JEPS86211  Castilleja wightii L. R. Heckard Sep 1970 2464 San Mateo Bean Hollow State Beach; s of south parking lot Comment
  RSA89758  Castilleja wightii P. A. Munz 1954-8-4 19914 San Mateo 5 miles s. of Rockaway Beach. Comment
  JROH1525  Caulanthus lasiophyllus John H. Thomas 1968-5-22 14456 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC47932  Ceanothus Fred Hemphill 1973-4-15 669 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 182 Comment
  POM136267  Ceanothus X regius C. F. Baker 1902-5-10 804 San Mateo Kings Mountain. Comment
  POM285181  Ceanothus cuneatus Lyman Benson 1929-3-2 991 San Mateo East of Lake Searsville Comment
  SJSU280  Ceanothus cuneatus H. W. Marion 1936-3-8 49 San Mateo 0.5 mi E of Searsville L 175 Comment
  JROH3517  Ceanothus cuneatus var. cuneatus Le Roy Abrams 1898-3-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC51604  Ceanothus oliganthus var. sorediatus Brandegee 1890-5-1 38 San Mateo Mts. bet. San Francisco and Santa Cruz Comment
  JROH3527  Ceanothus oliganthus var. sorediatus W. R. Dudley 1894-9-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Preston's ravine, Searsville Comment
  JROH3529  Ceanothus oliganthus var. sorediatus John H. Thomas 1967-4-20 12710 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM136517  Ceanothus oliganthus var. sorediatus A. D. E. Elmer 1903-05 4479 San Mateo Towards San Mateo; Crystal Springs Lake. Comment
  UC762253  Ceanothus oliganthus var. sorediatus R. F. Hoover 1941-5-20 5115 San Mateo Skyline Road sw Black Mt.; sw of Black Mt. Comment
  UCSC000469  Ceanothus sorediatus A. E. Wieslander 1929-3-3 45 San Mateo Near Palo Alto Plot #1 "Santa Cruz"?, Cordilleras Creek 305 Comment
  CAS-BOT-BC52283  Ceanothus thyrsiflorus George Oberlander 1950-4-23 859 San Mateo on Sawyer Ridge Comment
  CAS-BOT-BC52293  Ceanothus thyrsiflorus Rimo Bacigalupi 1922-3-1 s.n. San Mateo Lagoon of Arroyo de los Frijoles Comment
  CAS-BOT-BC52311  Ceanothus thyrsiflorus H. A. Borthwick 1920-4-28 s.n. San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC52312  Ceanothus thyrsiflorus J. I. McMurphy 1906-5-8 12 San Mateo Woodside, Santa Cruz Mts. 121 Comment
  SEINET12209978  Ceanothus thyrsiflorus J. I. McMurphy 1906-1 12 San Mateo Santa Cruz Mts 122 Comment
  SD37640  Ceanothus thyrsiflorus var. griseus Edith A. Purer 1933-5-5 3601 San Mateo Alpine Road Comment
  JROH595  Centaurea calcitrapa John Hunter Thomas 1991-11-21 25108 San Mateo Jasper Ridge Biological Preserve, Stanford University; SLAC corridor Comment
  CAS-BOT-BC274592  Centaurea calcitrapa Phillip C. Wheeler 1965-6-21 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  JROH587  Centaurea calcitrapa D. E. Breedlove 1971-5-11 19335 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Pinon Road along fence Comment
  UCD130018  Centaurea cyanus Jane A. Reese 1966-6-11 125 San Mateo northwest slope, Whiskey hill road, 1 mile from Junction with Woodside Road. 152 Comment
  CAS-BOT-BC277125  Centaurea melitensis Walter Knight; Irja Knight 1964-5-30 606 San Mateo San Bruno Mountain. Along north side of freeway - Colma Canyon. About across from Indian Head Rock Comment
  CAS-BOT-BC277128  Centaurea melitensis John H. Thomas 1963-7-19 10199 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  JROH606  Centaurea solstitialis John Hunter Thomas 1981-10-25 20769 San Mateo Jasper Ridge Biological Preserve, Stanford University; near main gate Comment
  UCR123143  Centaurium muehlenbergii George K. Helmkamp, E. A. Helmkamp 2001-6-2 6795 San Mateo Central Coast, Purissima Creek Rd., 0.9 mi from Calif. Hwy 1(junction about 4 mi south of Half Moon Bay) 91 Comment
  CAS-BOT-BC389675  Centaurium tenuiflorum Maryann Danielson 1969-7-17 s.n. San Mateo Huddart Park along road below residence Comment
  UC35457  Centaurium trichanthum W. C. Blasdale 1893-6-17 San Mateo Belmont Comment
  UCD130207  Centromadia pungens Lewis S. Rose 1965-9-20 65106 San Mateo Burlingame, Trousdale Dr. and California Dr. 9 Comment
  JEPS38156  Centromadia pungens subsp. pungens W. L. Jepson 1928-7-11 12937 San Mateo Redwood City Comment
  OBI48603  Centromadia pungens subsp. pungens Lewis S. Rose 1938-8-18 38231 San Mateo San Mateo Comment
  CAS-BOT-BC279327  Centromadia pungens subsp. pungens Roxana Stinchfield 1915-9-19 250 San Mateo Santa Cruz Mountain Peninsula. Fields near Salt Marshes, Palo Alto Comment
  CAS-BOT-BC279329  Centromadia pungens subsp. pungens L. R. Abrams 1903-9-27 4017 San Mateo Menlo Park Comment
  JEPS44407  Centromadia pungens subsp. pungens Lewis S. Rose 1965-9-20 65106 San Mateo Trousdale Dr. and California Dr.; Burlingame 9 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-BC384957  Cerastium arvense David D. Keck 1932-3-27 1410 San Mateo Stanford University; near the quarry on Matadero Creek Comment
  JROH1692  Cerastium glomeratum John H. Thomas 1969-4-20 14897 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1084416  Cerastium glomeratum G. Thomas Robbins 1937-4-11 101 San Mateo near Spring Valley Lakes along rd. to Woodside Comment
  JROH1694  Cerastium glomeratum John H. Thomas 1975-4-5 17709 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC135475  Cercocarpus betuloides var. betuloides Margaret A. Barry 1937-4-21 11 San Mateo Woods on Coal Mine Ridge Comment
  JROH3627  Cercocarpus betuloides var. betuloides John Hunter Thomas 1981-7-24 20730 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET11248322 Image available Cercocarpus montanus M. E. Springer 1946-9-1 725 San Mateo Near Searsville Lake Comment
  UC1191353  Chenopodium berlandieri Malcolm A. Nobs and S. Galen Smith 1949-8-26 1605 San Mateo marshy stream bank about 1 mi s Pigeon Point Comment
  POM164765  Chenopodium murale C. F. Baker 1902-9-2 1549 San Mateo Crystal Springs Lake. 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-BC497730  Chlorogalum pomeridianum Walter & Irja Knight 1964-5-4 s.n. San Mateo Colma Canyon Comment
  JROH4645  Chlorogalum pomeridianum var. pomeridianum D. E. Breedlove 1971-5-31 19390 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH4652  Chlorogalum pomeridianum var. pomeridianum John Hunter Thomas 1983-6-29 22706 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC246303  Chloropyron maritimum subsp. palustre J. W. Congdon 1881-5-24 s.n. San Mateo 14 mines south of San Francisco Comment
  POM165065  Chorizanthe cuspidata var. cuspidata A. D. E. Elmer 1903-05 s.n. San Mateo San Pedro Comment
  UC125349  Chorizanthe robusta Katharine Brandegee June 1905 San Mateo Colma Comment
  RSA212149  Chrysolepis chrysophylla L. S. Rose 1970-7-15 70073 San Mateo Kings Mountain. 915 Comment
  JEPS85230  Cicendia quadrangularis Roy E. Buck and James A. West 1985-4-29 524 San Mateo 1.9 air km ene Franklin Point (just n of Whitehouse Canyon rd, ca 0.8 km ne of Whitehouse Canyon Rd junction with Calif Hwy 1, Cascade Ranch) Comment
  SJSU8865  Cicendia quadrangularis S. H. Casey 1979-5-10 San Mateo Wunderlich Park c. 2 mi S of Woodside Comment
  CAS-BOT-BC285236  Cichorium intybus J. H. Thomas 1954-5-28 4229 San Mateo Redwood City. Near intersection of Bayshore and Main St. Comment
  CAS-BOT-BC277887  Cirsium brevistylum David D. Keck 1934-7-7 2932 San Mateo Kings Mountain, west of summit 579 Comment
  CAS-BOT-BC277889  Cirsium brevistylum R. E. Frenkel 1964-8-21 756 San Mateo On Spring Valley Ridge Road at its junction with Whiting Ridge Road, SFWD 347 Comment
  CAS-BOT-BC100940  Cirsium fontinale var. fontinale Lewis S. Rose 1959-6-18 59027 San Mateo Crystal Springs Lake near County Relief Home. Type Locality 121 Comment
  CDA1229  Cirsium fontinale var. fontinale T. C. Fuller 1970-5-13 19532 -A San Mateo East side of I-280, 100 yds. s. of junction Hwy 92 w. to Half Moon Bay. E slope above Crystal Springs Reservoir. Comment
  JEPS26070  Cirsium fontinale var. fontinale Lewis S. Rose 1959-6-18 59027 San Mateo near County Relief Home; Crystal Springs Lake 121 Comment
  CAS-BOT-BC285671  Cirsium occidentale var. occidentale A. A. Heller 1906-6-8 8379 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks Comment
  RSA176529  Cirsium occidentale var. venustum John H. Thomas 1963-6-23 10169 San Mateo Jasper Ridge Biological Experimental Area, about 5 mi SW of Palo Alto. Along road at Westridge end of ridge Comment
  CAS-BOT-BC280135  Cirsium occidentale var. venustum John Thomas Howell 1939-6-16 14747 San Mateo Kings Mt. Comment
  CAS-BOT-BC280510  Cirsium quercetorum Alice Eastwood 1912-6-10 342 San Mateo Crystal Springs Comment
  CAS-BOT-BC280519  Cirsium quercetorum Peter H. Raven 1950-6-3 2261 San Mateo Near San Andreas Lake 121 Comment
  CAS-BOT-BC280520  Cirsium quercetorum A. D. E. Elmer 1903-6-1 4290 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC280529  Cirsium quercetorum Alice Eastwood; John Thomas Howell 1938-6-26 6078 San Mateo Crystal Springs Lake Comment
  CDA1533  Cirsium quercetorum T. C. Fuller 1971-6-1 19881 San Mateo Crystal Springs Reservoir E shore, 0.3 mi. SE of center causeway; Belmont. Comment
  RSA0070861  Cirsium quercetorum John H. Thomas 1958-6-11 7227 San Mateo About 4.3 miles due E of Belmont near Crystal Springs Reservoir. 91 Comment
  UC895026  Cirsium quercetorum S. F. Blake 1927-7-8 10006 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC280517  Cirsium quercetorum John Thomas Howell 1939-6-16 14740 San Mateo Near San Andreas Lake Comment
  JROH636  Cirsium vulgare John H. Thomas 1970-7-5 15670 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC285866  Cirsium vulgare Ned Cahill 1974-10-8 380 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  RSA453491  Clarkia amoena subsp. amoena E. A. Purer 1932-7-16 s.n. San Mateo Near Half Moon Bay Comment
  RSA60758  Clarkia davyi A. A. Heller 1906-6-8 8382 San Mateo Near Ocean View, San Francisco Comment
  CAS-BOT-BC163976  Clarkia purpurea subsp. quadrivulnera Margaret A. Barry 1937-5-1 53 San Mateo Exposed slopes on Coal Mine Ridge Comment
  CAS-BOT-BC163963  Clarkia purpurea subsp. quadrivulnera W. R. Dudley 1903-6-6 s.n. San Mateo Alpine Road, Black Mt., Santa Cruz Range Comment
  CAS-BOT-BC163964  Clarkia purpurea subsp. quadrivulnera W. R. Dudley 1894-5-1 s.n. San Mateo Road from Woodside to Crystal Spr. Reservoir Comment
  POM271755  Clarkia purpurea subsp. quadrivulnera Lyman Benson 1931-4-26 2758 San Mateo Behind Stanford University. Santa Cruz mtn range, Corte Madera Creek. 213 Comment
  CAS-BOT-BC164565  Clarkia purpurea subsp. viminea Ned Cahill 1974-5-18 284 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC165161  Clarkia rubicunda W. R. Dudley 1896-11-15 s.n. San Mateo Near Pilarcitos Lake Comment
  JROH3016  Clarkia rubicunda John H. Thomas 1973-6-15 16850 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3026  Clarkia rubicunda John Hunter Thomas 1981-5-25 20646 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM271814  Clarkia rubicunda Lyman Benson 1930-5-12 2122 San Mateo Stanford University, Lake Searsville 152 Comment
  UC306513  Clarkia rubicunda A. D. E. Elmer June, 1903 4310 San Mateo Crystal Springs Lake Comment
  UCD169582  Clarkia rubicunda M. K. Wicksten 1971-8-10 224 San Mateo Moss Beach, bluff above Galway Bay. Comment
  CAS-BOT-BC165136  Clarkia rubicunda Peter H. Raven 1957-6-20 10955 San Mateo Above south-east end of Lake San Andreas Comment
  CAS-BOT-BC165172  Clarkia rubicunda W. R. Dudley 1894-5-30 s.n. San Mateo Near Redwood City Comment
  RSA15204  Clarkia rubicunda Carl B. Wolf 1926-10-19 86 San Mateo West of La Honda; Santa Cruz Mountains Comment
  SD88531  Clarkia rubicunda Darley F. Howe 1972-6-25 San Mateo Ocean bluff, 7.5 miles North of Half Moon Bay Comment
  UC1071887  Clarkia rubicunda H. and M. Lewis 1951-6-28 859 San Mateo 1.8 mi s Sharp Park Comment
  UC1094013  Clarkia rubicunda Lewis S. Rose 1957-7-6 57115 San Mateo w San Mateo (Skyline Blvd.) 182 Comment
  JROH3337  Claytonia exigua subsp. exigua Toni Corelli 2005-2-16 282 San Mateo Jasper Ridge Biological Preserve, Stanford University; lost serpentine, Trail 5 121 Comment
  CAS-BOT-BC439288  Claytonia exigua subsp. exigua George Oberlander 1950-2-1 445 San Mateo San Francisco Watershed Reserve. Near south boundary Comment
  CAS-BOT-BC439805  Claytonia perfoliata Ned Cahill 1974-4-29 168 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  CAS-BOT-BC439990  Claytonia perfoliata subsp. mexicana Peter H. Raven 1951-3-12 2746 San Mateo Summit ridge San Bruno Mountains Comment
  JROH3343  Claytonia perfoliata subsp. perfoliata John H. Thomas 1963-5-15 10088 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3351  Claytonia perfoliata subsp. perfoliata John Hunter Thomas 1982-4-23 20837 San Mateo Jasper Ridge Biological Preserve, Stanford University; picnic area Comment
  JROH3407  Clematis lasiantha John H. Thomas 1959-4-5 7666 San Mateo Jasper Ridge Biological Preserve, Stanford University. Chaparral at the western end of the ridge Comment
  JROH3411  Clematis lasiantha D. E. Breedlove 1971-5-31 19378 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  CAS-BOT-BC92558  Clematis ligusticifolia Josephine D. Randall 1907-6-6 306 San Mateo Santa Cruz Peninsula. Los Trancos Road near Stanford University. Comment
  SEINET12099156  Clematis ligusticifolia Unknown 1931-1 7796 San Mateo Jaspan Ridge, common Comment
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May 3 2019
  JROH2871  Clinopodium douglasii H. A. Lewis 1908-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  CAS-BOT-BC499406  Clintonia andrewsiana A. D. E. Elmer 1903-5-1 4331 San Mateo Butano Creek Comment
  RSA18200  Clintonia andrewsiana Carl B. Wolf 1929-5-25 3736 San Mateo 7.5 miles from Pescadero on Alpine Creek Road. Comment
  UC729634  Collinsia heterophylla Carl B. Wolf 1929-5-17 3714 San Mateo 1 mi w of Skyline Boulevard (on Alpine Road); Alpine Road 304 Comment
  CAS-BOT-BC240937  Collinsia multicolor Miss E. Cannon 1891-1-1 s.n. San Mateo S.S.F. Comment
  JEPS17741  Collinsia multicolor A. Paul Martin 1957-5-23 San Mateo San Bruno Hills, at upper edge of town of Brisbane Brisbane; San Bruno Hills, Brisbane 198 Comment
  CAS-BOT-BC240930  Collinsia multicolor W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula. Pilar Pt. south slope by grade near summit of Montara Mts. Comment
  JEPS127810  Collinsia sparsiflora Adam C. Schneider with C. Matt Guilliams 2013-4-7 72 San Mateo Comment
  JROH1850  Convolvulus arvensis John Hunter Thomas 1983-6-29 22694 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC288965  Conyza floribunda Peter Rubtzoff; Patricia Fallon 1987-8-26 9835 San Mateo San Bruno Mts: Saddle area on N side of Guadelupe Canyon. Parkway W of Radio Rd junction; NW part of the area along old Guadelupe Rd Comment
  JEPS64357  Corallorhiza striata W. L. Jepson 1922-3-19 9539 San Mateo Lake San Andreas Vicinity of San Francisco Bay 182 Comment
  JROH5743  Corallorhiza striata L. Nordby 1982-5-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. 2 km east of redwood stands Comment
  POM88156  Cordylanthus maritimus subsp. palustris L. R. Abrams 1900-10 1031 San Mateo Cooley's Landing Comment
  POM287561  Cornus californica Arthur L. Cohen 1935-2-22 525 San Mateo King's Mountain Road; Mt. Range: Santa Cruz; Watershed: San Francisco Bay. 152 Comment
  RSA18367  Cornus occidentalis C. B. Wolf 1929-5-20 3721 San Mateo No. end of Searsville Lake. Comment
  CAS-BOT-BC210353  Cornus sericea W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Peninsula. San Mateo Creek Comment
  CAS-BOT-BC210354  Cornus sericea Lewis S. Rose 1956-5-7 56064 A San Mateo 3 mi. e. of Half Moon Bay 30 Comment
  CAS-BOT-BC210468  Cornus sericea subsp. occidentalis W. R. Dudley 1895-6-8 s.n. San Mateo Santa Cruz Peninsula. Pescadero Creek at Camp near Iverson's Comment
  JROH1868  Cornus sericea subsp. sericea John Hunter Thomas 1981-5-5 20536 San Mateo Jasper Ridge Biological Preserve, Stanford University; low flow crossing Comment
  CAS-BOT-BC190041  Cortaderia jubata Phillip C. Wheeler 1965-8-14 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon. 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
  UC1206477  Corylus californica Le Roy Abrams 1902-3-16 2271 San Mateo Kings Mountain Comment
  CAS-BOT-BC180367  Corylus cornuta subsp. californica A. D. E. Elmer 1903-3-1 4536 San Mateo King's Mountain Comment
  CAS-BOT-BC180369  Corylus cornuta subsp. californica David D. Keck 1932-2-12 1362 San Mateo La Honda road, E slope of Coast Range above Searsville Lake 304 Comment
  CAS-BOT-BC180375  Corylus cornuta subsp. californica Walter Knight; Irja Knight 1964-9-2 61 San Mateo On Mouth of Colma Canyon. San Bruno Mountain Comment
  JROH1335  Corylus cornuta subsp. californica John H. Thomas 1976-10-16 18430 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
  UC1755440  Cotoneaster hodjingensis Dean W. Taylor 2004-6-2 19078 San Mateo San Bruno Mountain, southeast margin of the radio towers at the summit 365 Comment
  CAS-BOT-BC453502  Cotoneaster lacteus Elizabeth McClintock; Paul Reeberg 1988-6-7 s.n. San Mateo Guadalups Parkway; San Bruno Mountains Comment
  JROH3636  Cotoneaster pannosus Judith Wagner 1974-11-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC287304  Cotula australis Le Roy Abrams 1902-4-13 2323 San Mateo Lake San Andreas Comment
  CAS-BOT-BC287303  Cotula australis W. R. Dudley 1909-10-4 s.n. San Mateo North pond near Mussel Rock Comment
  CHSC57065  Cotula coronopifolia Steven Triano 1988-5-24 202 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  RSA176543  Cotula coronopifolia John H. Thomas 1963-5-8 10063 San Mateo San Bruno Mtn in northern part of county. 305 Comment
  UCD101808  Crassula aquatica W. R. Dudley 1910-5-26 s.n. San Mateo Coal Mine Ridge, near Block Mountain; Santa Cruz Mountain Peninsula. Comment
  CAS-BOT-BC427836  Crassula connata Elizabeth McClintock 1965-4-11 s.n. San Mateo San Bruno Mountain. Near Guadalupe Road in Crocker Hills. Comment
  SEINET12216216  Crassula connata E. McClintock, Knight, W.; Knight, I. 1982-1 4631 San Mateo from windy Kamchatka Point, San Bruno Mountain Comment
  UCSC007736  Crassula connata Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH3653  Crataegus monogyna John H. Thomas 1967-6-1 12972 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH668  Crepis vesicaria subsp. taraxacifolia John Hunter Thomas 1986-6-7 24082 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU4570  Crepis vesicaria subsp. taraxacifolia C. S. Hendrich 1963-3-20 San Mateo Sharon Estate by Sand hill Road near Stanford Comment
  RSA152117  Crocosmia X crocosmiiflora John H. Thomas 1961-8-27 9700 San Mateo Western end of San Bruno Mountain 244 Comment
  JROH1955  Croton setiger John H. Thomas 1959-8-22 8076 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4981  Crypsis schoenoides John Hunter Thomas 1980-11-27 20193 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta Comment
  JROH4995  Crypsis schoenoides John Hunter Thomas 1988-10-17 24598 San Mateo Jasper Ridge Biological Preserve, Stanford University; on delta in lake Comment
  RSA10273  Cryptantha clevelandii var. florosa H. A. Barker 1927-5-14 671 San Mateo North of Half Moon Bay. Comment
  JROH5626  Cryptantha micromeres John Rawlings 2014-5-6 1224 San Mateo Jasper Ridge Biological Preserve, Stanford University; on the top of Trevor's Knoll, about 70 m north of Trail 10. 181 Comment
  JROH1372  Cryptantha microstachys John H. Thomas 1961-4-29 9197 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  JROH1388  Cryptantha torreyana var. pumila John Rawlings 2012-5-23 1109 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Trail 10 in Chaparral bare zone. 153 Comment
  CAS-BOT-BC80523  Cupressus arizonica Elizabeth McClintock; P. Reeberg 1989-5-2 s.n. San Mateo grassland above Harold Avenue, Brisbane 121 Comment
  CAS-BOT-BC80790  Cupressus macrocarpa J. H. Thomas 1964-6-19 10423 San Mateo About 1/2 mi below Skyline Blvd. on Half Moon Bay Road toward Crystal Springs Reservoir. Comment
  SD38407  Cuscuta pacifica var. pacifica Edith A. Purer 1933-8-13 5408 San Mateo Small bottom near Baden Station Comment
  RSA130967  Cuscuta salina S. D. Halsey 1908-9-26 s.n. San Mateo near Cooley's Landing Comment
  SEINET12278070  Cuscuta salina E. A. Purer 1933-1 5408 San Mateo Near Baden Station Comment
  CDA39983  Cuscuta subinclusa E. L. Labadie Jr. 1960-9-7 s.n. San Mateo 11510 Terrace Drive, Los Altos. 0 Comment
  UCD34111  Cyclospermum leptophyllum Beecher Crampton 1976-7-31 9404 San Mateo Redwood City. Comment
  CAS-BOT-BC287335  Cynara cardunculus John Thomas Howell 1956-11-14 31961 San Mateo Bayshore Highway just S of Main St, Redwood City Comment
  CAS-BOT-BC287341  Cynara cardunculus John Thomas Howell 1956-11-14 31961 San Mateo Bayshore Highway just S of Main St, Redwood City Comment
  JROH5001  Cynodon dactylon John H. Thomas 1967-11-5 14135 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD67319  Cynoglossum grande Darley F. Howe 1967-4-14 4349 San Mateo San Francisco Game Reserve near San Bruno 89 Comment
  UCR121491  Cynosurus echinatus George K. Helmkamp, E. A. Helmkamp 1999-6-28 4958 San Mateo Coast Range; Santa Cruz Mtns, Sky Londa; junction of Calif. Hwy 84 and Calif. Hwy 35, 5 mi south of central Redwood City 457 Comment
  JROH4387  Cyperus eragrostis John H. Thomas 1968-10-29 14855 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA132456  Cyperus eragrostis John H. Thomas 1959-8-22 8084 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  CAS-BOT-BC114460  Cyperus eragrostis Jane Reese 1966-6-11 123 San Mateo Whiskey hill road, 1 mi from Junction with Woodside road. 152 Comment
  JROH5716  Cyperus erythrorhizos John Rawlings 2015-9-22 1640 San Mateo Jasper Ridge Biological Preserve, Stanford University. In mud of Corte Madera Creek delta near open water 104 Comment
  CAS-BOT-BC189819  Dactylis glomerata W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of Sneath Ranch, vicinity of Baden. Comment
  CAS-BOT-BC189820  Dactylis glomerata Elizabeth McClintock; Paul Reeberg 1989-8-31 s.n. San Mateo San Bruno Mountains. Along Old Guadalupe Trail. Comment
  JROH5017  Dactylis glomerata John Hunter Thomas 1977-6-16 18753 San Mateo Jasper Ridge Biological Preserve, Stanford University. Weedy area near old racing oval Comment
  RSA101030  Dactylis glomerata G. Oberlander 1950-5-21 960 San Mateo Under Douglas fir, Cahill Ridge, San Francisco Watershed Reserve Comment
  CAS-BOT-BC192236  Danthonia californica E. H. Quayle 1920-5-2 714 San Mateo Moss Beach Comment
  JROH5041  Danthonia californica John Hunter Thomas 1981-5-19 20611 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10860712  Danthonia californica Adolph D. E. Elmer Elmer 4707 San Mateo Crystal Springs Lake. Comment
  POM87696  Danthonia californica var. californica Le Roy Abrams 1902-5-11 2451 San Mateo Crystal Springs Comment
  CDA31644  Danthonia californica var. californica T. C. Fuller 1975-5-15 20075 San Mateo Hillborough, north exit of rest stop, east side of Hwy 280. 0 Comment
  JROH229  Daucus pusillus John Hunter Thomas 1978-4-22 19101 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH234  Daucus pusillus John Hunter Thomas 1992-4-29 25171 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC007739  Daucus pusillus Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  UC32721  Deinandra corymbosa J. Burtt Davy 1893-6-17 812 San Mateo Belmont 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-BC299204  Deinandra corymbosa subsp. corymbosa James I. McMurphy 1906-11-17 2 San Mateo Portola Comment
  CAS-BOT-BC300006  Deinandra lobbii W. R. Dudley 1898-11-4 s.n. San Mateo Los Trancos Road near Adelante Villa, vicinity of Standford University Comment
  UC9192  Delphinium Alice Eastwood 1896-5-1 San Mateo Crystal Springs 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-BC9214  Delphinium californicum Lewis Samuel Rose 1965-5-3 65058 San Mateo San Bruno Mountain, Colma Canyon 60 Comment
  CAS-BOT-BC9223  Delphinium californicum J. H. Thomas 1961-5-7 9279 San Mateo San Bruno Mountain in northern part of county 396 Comment
  RSA184849  Delphinium californicum L. S. Rose 1965-5-3 65058 San Mateo San Bruno Mountain, Colma Canyon. 61 Comment
  JROH3428  Delphinium californicum subsp. californicum John H. Thomas 1969-5-28 15080 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3433  Delphinium californicum subsp. californicum John H. Thomas 1973-6-10 16811 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC9235  Delphinium decorum Elizabeth McClintock 1965-4-25 s.n. San Mateo San Bruno Mountain, Owl's canyon Comment
  SD37298  Delphinium decorum Edith A. Purer 1933-4-18 3632 San Mateo Above Emerald Lake Comment
  UC9146  Delphinium decorum subsp. tracyi Geological Survey San Mateo San Bruno Comment
Read comments
Jun 4 2007
  CAS-BOT-BC10285  Delphinium hesperium Joseph J. Schweitzer 1951-6-5 57 San Mateo Searsville Lake 121 Comment
  CAS-BOT-BC10288  Delphinium hesperium Alice Eastwood 1912-6-10 320 San Mateo Crystal Springs Comment
  JEPS6236  Delphinium hesperium subsp. hesperium J. Burtt Davy 1893-6-17 805 San Mateo Belmont Comment
  JROH3447  Delphinium hesperium subsp. hesperium John Hunter Thomas 1980-5-6 19927 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3449  Delphinium hesperium subsp. hesperium John Hunter Thomas 1983-6-2 22330 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC9179  Delphinium hesperium subsp. pallescens J. Burtt Davy Jun 21 1893-Jun 23 1893 1152 San Mateo Pilarcitos Lake and Canyon Comment
  SEINET12099568  Delphinium nudicaule N. R. Dudley 1893-1 s.n. San Mateo Santa Cruz Peninsula, Beyond King's Mountain Comment
  UCD18536  Delphinium nudicaule Roman Gankin 1950-7-2 3 San Mateo east side of the Peninsula Coast Range, off of the King's Mtn. Rd. behind Woodside. 609 Comment
  JROH3456  Delphinium patens subsp. patens John H. Thomas 1977-4-21 18540 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC116528  Delphinium patens subsp. patens W. Dudley 1900-3-16 s.n. San Mateo Above Tripp's Store, Woodside Comment
  CAS-BOT-BC7898  Delphinium variegatum W. R. Dudley 1906-6-10 s.n. San Mateo on limestone hill, NW of Cahil Ridge Comment
  CAS-BOT-BC7936  Delphinium variegatum Cynthia Steele 1948-4-18 26 San Mateo Redwood City Comment
  CAS-BOT-BC7927  Delphinium variegatum subsp. variegatum Alice Eastwood 1896-4-1 s.n. San Mateo Crystal Springs Comment
  JROH3465  Delphinium variegatum subsp. variegatum John Hunter Thomas 1978-4-20 19088 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM148952  Delphinium variegatum subsp. variegatum A. D. E. Elmer 1903-05 s.n. San Mateo Crystal Springs Lake. Comment
  SEINET11676625  Deschampsia cespitosa subsp. holciformis H. E. Wieser 1932-1 s.n. San Mateo hills back of Burlington on Hillside Drive Comment
  JROH5053  Deschampsia danthonioides John Hunter Thomas 1989-5-3 24653 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC906  Dicentra chrysantha Alice Eastwood 1915-5-30 4519 San Mateo Mt. Diablo Comment
  SJSU112  Dicentra formosa T. Rogers 1929-5-30 San Mateo Kings Mt Comment
  UC137117  Dicentra formosa C. F. Baker 1902-3-22 344 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC500891  Dichelostemma capitatum Ned Cahill 1974-4-19 152 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC500928  Dichelostemma capitatum Ned Cahill 1974-4-23 164 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JEPS127778  Dichelostemma capitatum subsp. capitatum Adam C. Schneider with C. Matt Guilliams 2013-3-9 28 San Mateo Comment
  JROH4654  Dichelostemma capitatum subsp. capitatum Elmer I. Applegate 1895-5-11 703 b San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Dam Comment
  RSA17858  Dichelostemma capitatum subsp. capitatum Elmer I. Applegate 1895-5-11 703 b San Mateo Searsville Dam, above Stanford. Comment
  UCSB11443  Dichelostemma capitatum subsp. capitatum Olson, Jim 1962-4-17 San Mateo 10 miles east of Halfmoon Bay on Canada Road 30 Comment
  JROH5077  Digitaria sanguinalis John H. Thomas 1974-10-29 17648 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accomodate water from Corte Madera Cr. Comment
  JROH5079  Digitaria sanguinalis John Hunter Thomas 1981-9-24 20747 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC121857  Dirca occidentalis Lewis S. Rose 1964-3-9 64004 San Mateo N end of Crystal Springs Lake 121 Comment
  CAS-BOT-BC121859  Dirca occidentalis Lewis S. Rose 1933-6-9 33222 San Mateo San Andreas Lake Comment
  CAS-BOT-BC121866  Dirca occidentalis John Thomas Howell 1945-7-8 30012 San Mateo 0.5 mile below Lake Pilarcitos dam Comment
  RSA396845  Dirca occidentalis D. E. Breedlove 1964-2-7 5916 San Mateo In San Andreas Canyon below the dam Comment
  UCR143110  Dirca occidentalis L. S. Rose 1933-6-9 33222 San Mateo San Francisco Bay Region, San Andreas Lake 305 Comment
  UC961171  Disporum hookeri G. H. Ward 1950-4-8 949 San Mateo 1 mi n of La Honda Comment
  RSA15289  Disporum hookeri var. hookeri Carl B. Wolf 1927-4-3 257 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  CAS-BOT-BC195715  Distichlis spicata Elizabeth McClintock; Paul Reeberg 1988-6-7 s.n. San Mateo PG&E Marsh 30 Comment
  JROH3376  Dodecatheon clevelandii subsp. patulum Ellen Searby 1955-4-1 78 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD38129  Dodecatheon hendersonii Marie Cummings 1933-4-11 3687 San Mateo Spring Valley Lake Comment
  JEPS9541  Dodecatheon hendersonii Ivar Tidestrom 1894-3-22 San Mateo Comment
  POM287491  Dodecatheon hendersonii subsp. cruciatum Lyman Benson 1931-2-16 2583 San Mateo Stanford University. Corte Madra Creek. 152 Comment
  JROH1515  Draba verna John Hunter Thomas 1989-4-20 24641 San Mateo Jasper Ridge Biological Preserve, Stanford University; grassy area below dam Comment
  CAS-BOT-BC159502  Drymocallis glandulosa var. glandulosa Elizabeth McClintock 1965-3-28 s.n. San Mateo From burned over area in Devil's Arroyo - San Bruno Mountain Comment
  JROH3741  Drymocallis glandulosa var. wrangelliana John Rawlings, Toni Corelli 2013-5-7 1173 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along the path to old quarry off of Trail 12. 109 Comment
  RSA112450  Drymocallis glandulosa var. wrangelliana Josephine Randall 1907-7-7 340 San Mateo Kings Mtn. Comment
  UC1128209  Drymocallis glandulosa var. wrangelliana H. S. Yates 1935-2-3 5009 San Mateo 1/2 mi se Pigeon Pt.; Santa Cruz Quadrangle Comment
  UC525498  Drymocallis glandulosa var. wrangelliana Ethel Crum 1932-4-17 1387 San Mateo Pebble Beach Road sw Pescadero (near ocean); sw of Pescadero 30 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
  JROH31  Dryopteris arguta Lawrence J. Winship 1974-11-16 21 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH42  Dryopteris arguta John H. Thomas 1964-11-29 10543 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek below dam. Comment
  UC1063780  Dryopteris arguta T. Tyrrell 1928-9-26 6 San Mateo 2 mi s San Gregorio (Plot 13); Santa Cruz Quadrangle 91 Comment
  UC74801  Dryopteris arguta C. F. Baker 1902-1-15 320 San Mateo w side King's Mt Comment
  SEINET11619627  Dryopteris arguta Unknown 1929-1 7295 San Mateo Kings Mt Comment
  UCR130218  Dudleya caespitosa George K. Helmkamp, E. A. Helmkamp 1999-6-28 4995 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-BC428359  Dudleya farinosa John H. Thomas 1963-7-19 10197 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC428366  Dudleya farinosa Dr. Barton W. Evermann 1924-6-22 s.n. San Mateo Ano [Ano] Nuevo Island Comment
  JROH1815  Dysphania ambrosioides John Hunter Thomas 1980-11-12 20165 San Mateo Jasper Ridge Biological Preserve, Stanford University; delta 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
  JROH5603  Echinochloa crus-galli John Rawlings 2013-9-12 1207 San Mateo Jasper Ridge Biological Preserve, Stanford University; Corte Madera Creek delta. 105 Comment
  CAS-BOT-BC197265  Echinochloa muricata var. microstachya George Oberlander 1949-9-25 394 San Mateo San Francisco Watershed Reserve. Upper Crystal Spr. Lake Comment
  JROH4304  Echinodorus berteroi John H. Thomas 1964-11-15 10523 San Mateo Jasper Ridge Biological Preserve, Stanford University; now dry lake margin at east end of Searsville Dam Comment
  JROH4310  Echinodorus berteroi John Hunter Thomas 1992-7-24 25389 San Mateo Jasper Ridge Biological Preserve, Stanford University; in water and on mud near boat ramp Comment
  CDA20116  Ehrharta erecta K. Melo 2003-4-21 PDR 205211 San Mateo San Francisco Bay Area; Urban yard in Redwood City. 0 Comment
  UCR242653  Ehrharta erecta A. C. Sanders 2012-11-11 40518 San Mateo SF Bay Area, Daly City near Colma, between Junipero Serra Blvd. and San Pedro Rd. on Washington St. 56 Comment
  CAS-BOT-BC112959  Eleocharis macrostachya Adolph Daniel Edward Elmer 1903-7-1 4767 San Mateo San Pedro. Comment
  UC942857  Eleocharis montevidensis Lewis S. Rose 1950-5-20 50146 San Mateo hills W of Redwood City (Emerald Lake region) 243 Comment
  CAS-BOT-BC203688  Elymus glaucus subsp. glaucus John H. Thomas 1961-5-7 9255 San Mateo San Bruno Mountain in northern part of county 396 Comment
  UCD62379  Elymus glaucus subsp. virescens Beecher Crampton 1962-6-11 6507 San Mateo Sharp Park, suburb of Pacifica, Mori's Point Road just west of State Hwy. 1. Comment
  JROH5122  Elymus multisetus John H. Thomas 1975-5-26 17910 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA101004  Elymus multisetus G. Oberlander 1950-7-15 1015 San Mateo north of San Andreas Lake, San Francisco Watershed Reserve Comment
  SJSU15954  Elymus multisetus John Rawlings, Ken Hickman 2016-5-26 1831 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  JROH3043  Epilobium brachycarpum John H. Thomas 1972-8-18 16152 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18504  Epilobium brachycarpum Carl B. Wolf 1927-7-14 616 San Mateo Summit of Kings Mountain Rd. Comment
  RSA185792  Epilobium brachycarpum John H. Thomas 1966-9-13 12392 San Mateo Pacifica. San Pedro Valley, near St. Peter s Catholic Church near Oostad Blvd. along Linda Mar Blvd. Comment
  CAS-BOT-BC165935  Epilobium canum Ira L. Wiggins 1980-8-29 22254 San Mateo Sandy bed of San Francisquito Creek, ca 125 m upstream from Pope Street bridge, Menlo Park Comment
  UC1122298  Epilobium canum subsp. canum G. E. Sindel 1935-8-19 335 San Mateo 1 mi sw Langley Hill; Santa Cruz Quadrangle Comment
  UC942859  Epilobium canum subsp. canum Lewis S. Rose 1949-9-11 49178 San Mateo Skyline Blvd. 2 mi w Crystal Springs Lake Comment
  JROH3051  Epilobium ciliatum subsp. ciliatum John H. Thomas 1976-10-16 18424 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  POM32681  Epilobium ciliatum subsp. watsonii Copeland 1903-6-5 3328 San Mateo Montara Point. Comment
  RSA181285  Epilobium ciliatum subsp. watsonii John H. Thomas 1954-6-11 4292 San Mateo About 1 mile north of Pigeon Point, near coast 30 Comment
  RSA18463  Epilobium ciliatum subsp. watsonii Carl B. Wolf 1927-6-29 545 San Mateo South of Pebble Beach near Pescadero. Comment
  JEPS112674  Epipactis helleborine Dean W. Taylor 2000-7-20 17431 San Mateo Montara Mountain; Scarper Peak, western slope of the peak near the summit; bordering the springbox serving the FAA facility on the summit 502 Comment
  CAS-BOT-BC389734  Equisetum J. Lovelle 1973-8-5 48 San Mateo Pomponio Canyon Comment
  JROH64  Equisetum hyemale subsp. affine Toni Corelli 2005-10-12 307 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 13, north side of Leonard's bridge. 106 Comment
  CAS-BOT-BC57604  Equisetum telmateia Ira L. Wiggins 1931-3-15 5103 San Mateo between Skyline Blvd. and La Honda Comment
  JROH70  Equisetum telmateia subsp. braunii John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH73  Equisetum telmateia subsp. braunii John Hunter Thomas 1982-11-6 21206 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta along edge of Searsville Lake Comment
  SD27774  Equisetum telmateia subsp. braunii Carl B. Wolf 1927-4-3 255 San Mateo Santa Cruz Mountains, 1 mile above La Honda 245 Comment
  RSA15287  Equisetum telmateia var. braunii C. B. Wolf 1927-4-3 255 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  CAS-BOT-BC284050  Eragrostis pectinacea var. pectinacea Ira L. Wiggins 1973-6-24 22020 San Mateo Bed of San Francisquito Creek, 50-60 m upstream from Pope Street bridge, boundary between San Mateo and Santa Clara counties Comment
  JROH5140  Eragrostis pectinacea var. pectinacea John H. Thomas 1974-10-29 17646 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  RSA132467  Eremocarpus setiger John H. Thomas 1959-8-22 8076 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  SEINET12141700  Eremocarpus setiger E. A. Purer 1933-1 5513 San Mateo Skyline Blvd Comment
  SJSU14204  Eriastrum abramsii Toni Corelli 1989-4-25 202 San Mateo Edgewood County Park 219 Comment
  UC1536854  Ericameria ericoides G. H. True Jr. 1937-10-16 846 San Mateo near Salada Beach 15 Comment
  POM359361  Ericameria ericoides var. ericoides E. A. Purer 1933-8-25 5511 San Mateo Along Skyline Drive Comment
  CHSC25996  Ericameria parishii James Henrickson 1969-10-19 4189 San Mateo 6 mi. NNW of Descanso on Boulder Creek Rd. Comment
Read comments
Dec 11 2013
  JROH678  Erigeron canadensis Toni Corelli 2011-8-30 372 San Mateo Jasper Ridge Biological Preserve, Stanford University. South of Road B, in vicinity of Dennis Martin site sign 76 Comment
  UCD131896  Erigeron floribundus John Thomas Howell 1975-9-25 51508 San Mateo San Bruno Mountain. 396 Comment
  CAS-BOT-BC300613  Erigeron foliosus var. franciscensis Fred Hemphill 1973-5-14 813 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC300614  Erigeron foliosus var. franciscensis Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo San Bruno Mountain. In old quarry in Colma Canyon Comment
  POM204314  Erigeron glaucus I. L. Wiggins 1929-7-4 3798 San Mateo Pescadero Beach Comment
  SEINET11859443  Erigeron glaucus M. T. Doutt 1931-3-14 239 San Mateo along coast S of San Francisco Comment
  JROH2718  Eriodictyon californicum John H. Thomas 1970-7-5 15667 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2728  Eriodictyon californicum John H. Thomas 1975-6-5 17938 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack Comment
  RSA119753  Eriodictyon californicum Josephine Randall 1907-6-29 164 San Mateo Kings Mt. Road. Comment
  CHSC28679  Eriogonum latifolium M. S. Taylor 1978-7-31 1871 San Mateo Ano Nuevo State Reserve. 0 Comment
  RSA107485  Eriogonum latifolium L. S. Rose 1955-7-25 55167 San Mateo Pigeon Point 6 Comment
  RSA393632  Eriogonum latifolium E. S. Spalding 1924-6-28 s.n. San Mateo Moss Beach. Comment
  SD38689  Eriogonum latifolium Edith A. Purer 1933-7-27 5370 San Mateo Sand dunes, rwo miles south of Pigeon Point Comment
  SD88537  Eriogonum latifolium Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of 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
  UC849505  Eriogonum latifolium Mrs. E. C. Phipps July 1922 San Mateo Tunitas Creek Comment
  CAS-BOT-BC251981  Eriogonum latifolium Elsie M. Zeile 1921-7-30 s.n. San Mateo Salada Beach (slopes nr. road) Comment
  CAS-BOT-BC251993  Eriogonum latifolium Phipps 1922-7-1 s.n. San Mateo Tunitas Creek Comment
  CAS-BOT-BC251994  Eriogonum latifolium Helen D. Geis 1901-10-26 s.n. San Mateo Bluffs along Halfmoon Bay Comment
  RSA766114  Eriogonum latifolium D. D. Keck 1931-10-5 1287 San Mateo 1 mile north of Salada Beach, 200 meters from the ocean. Comment
  SEINET11938061  Eriogonum latifolium E. A. Purer 1933-1 5379 San Mateo 2 mi S of Pigeon Point Comment
  CAS-BOT-BC264773  Eriogonum luteolum Paul R. Hichborn 1920-6-1 284 San Mateo Back of Redwood City, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC264774  Eriogonum luteolum Hester R. Davis 1920-6-1 177 San Mateo Back of Redwood City, Santa Cruz Mountain Peninsula Comment
  JEPS111093  Eriogonum luteolum Zoe Ellis Chandik 1992-7-14 92 -1 San Mateo Crystal Springs Reservoir, south edge of serpentine (sludge) talus slope, below Hwy 280 on San Francisco Watershed land, 0.1 mi N of Hwy 92 (Ralston Ave.) east of junction with Skyline Blvd 121 Comment
  JEPS111097  Eriogonum luteolum Zoe Ellis Chandik 1992-7-14 92 -3 San Mateo On north side of trail just inside Sunset (pedestrian) entrance of Edgewood County Park Comment
  UCD100310  Eriogonum luteolum Lewis S. Rose 1964-9-9 64073 San Mateo Emerald Lake, west of Redwood City. 243 Comment
  JROH3228  Eriogonum luteolum var. luteolum John H. Thomas 1967-11-5 14133 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA51396  Eriogonum luteolum var. luteolum L. S. Rose 1949-8-14 49164 San Mateo Emerald Lake, hills west of Redwood City. Comment
  UC912827  Eriogonum luteolum var. luteolum Lewis S. Rose 1937-9-21 37661 San Mateo w Redwood City (Emerald Lake); Emerald Lake 182 Comment
  CAS-BOT-BC269004  Eriogonum nudum var. auriculatum Cherie Wetzel 1969-6-20 873 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  JEPS128396  Eriogonum nudum var. auriculatum Adam C. Schneider 2013-5-17 142 San Mateo Crystal Springs Reservoir. Comment
  CAS-BOT-BC269003  Eriogonum nudum var. auriculatum Margaret A. Barry 1938-6-22 171 San Mateo On Coal Mine Ridge Comment
  SJSU15945  Eriogonum nudum var. nudum John Rawlings, Ken Hickman 2016-5-26 1822 A San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  SBBG32434  Eriogonum vimineum L. S. Rose 1964-9-9 64073 San Mateo Emerald Lake, W of Redwood City 243 Comment
  CAS-BOT-BC304066  Eriophyllum confertiflorum Linda Fox 1969-6-20 1005 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd Comment
  CAS-BOT-BC304073  Eriophyllum confertiflorum Fred Hemphill 1973-4-22 769 San Mateo San Carlos. N of Malabar Rd and Melendry Dr 207 Comment
  CAS-BOT-BC304074  Eriophyllum confertiflorum Fred Hemphill 1973-3-17 633 San Mateo San Carlos. N of Malabar Rd and Melendry Dr 207 Comment
  CAS-BOT-BC304087  Eriophyllum confertiflorum Ned Cahill 1974-4-30 235 San Mateo N slope of the knoll, near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City Comment
  JROH711  Eriophyllum confertiflorum var. confertiflorum John Hunter Thomas 1981-5-8 20562 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH717  Eriophyllum confertiflorum var. confertiflorum John Hunter Thomas 1992-5-5 25210 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC301262  Eriophyllum lanatum var. arachnoideum H. E. McMinn 1922-6-22 258 San Mateo Unspecified Comment
  RSA463086  Eriophyllum lanatum var. arachnoideum Lyman Benson 1930-5-3 2113 San Mateo Above Woodside, Mt. Range: Santa Cruz. 366 Comment
  CAS-BOT-BC301271  Eriophyllum lanatum var. arachnoideum W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Mountain Peninsula. By county road below Dam, San Mateo Creek Comment
  CAS-BOT-BC301753  Eriophyllum latilobum A. D. E. Elmer 1903-6-1 4397 San Mateo field near San Francisquito Creek near Stanford University Comment
  LA203607  Eriophyllum latilobum Ira L. Wiggins; 1929-7-4 3785 San Mateo 4 mi. W. of La Honda on hill road to Pescadero Beach Comment
  CHSC335  Eriophyllum staechadifolium H. Holder 1949-5-15 San Mateo Near San Francisco bay. 9 Comment
  JEPS34470  Eriophyllum staechadifolium L. R. Heckard and Rimo Bacigalupi 1963-7-2 1359 San Mateo trail to (nw slope) Montara Peak (above old county road) 304 Comment
  POM54691  Eriophyllum staechadifolium C. F. Baker 1901-10-1 1747 San Mateo Pillar Point Comment
  CAS-BOT-BC301963  Eriophyllum staechadifolium John H. Thomas 1963-5-20 10123 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC301964  Eriophyllum staechadifolium John H. Thomas 1963-7-19 10188 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  POM358131  Eriophyllum staechadifolium L. S. Rose 1938-8-18 38233 San Mateo Skyline Blvd., 3 miles south of San Francisco County line. 61 Comment
  RSA116669  Eriophyllum staechadifolium W. R. Dudley 1894-3-26 s.n. San Mateo By road from Pescadero to San Gregorio Comment
  UCSB10755  Eriophyllum staechadifolium Myrick, Donald 1966-6-11 San Mateo Near Pescadero Creek off Highway #1 south of San Francisco Comment
  JROH2593  Erodium botrys John H. Thomas 1968-3-31 14257 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2607  Erodium cicutarium John Hunter Thomas 1980-4-10 19880 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Searsville Lab. Comment
  JROH2609  Erodium moschatum John Rawlings 2013-4-30 1174 San Mateo Jasper Ridge Biological Preserve, Stanford University. Rd. B vicinity of Dennis Martin site. 79 Comment
  UC874915  Eryngium armatum Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9296 San Mateo Ano Nuevo Point Comment
  JROH5639  Eryngium jepsonii John Rawlings 2014-6-7 1262 San Mateo Jasper Ridge Biological Preserve, Stanford University. 100 yards west from Escobar Gate, 20 yards north of road F. 161 Comment
  CAS-BOT-BC54820  Erysimum franciscanum Javier Penalosa 1963-3-30 2735 San Mateo San Bruno Mountains. North of Randolph Drive at Hillside Boulevard. In South San Francisco. 289 Comment
  CAS-BOT-BC54834  Erysimum franciscanum G. B. Rossbach 1955-3-12 568 San Mateo Just inland and southeast of Devil's Slide, west edge of Montara Mountains. 121 Comment
  CAS-BOT-BC54844  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1938-4-3 806 San Mateo Crests and steep upper slopes of the San Bruno Hills. 365 Comment
  CAS-BOT-BC54853  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-4-2 906 a fl. 906b fr. San Mateo Fifield Ridge, just above San Mateo Creek and north of Pilarcitos Lake. 243 Comment
  CAS-BOT-BC54869  Erysimum franciscanum Craig Martz 1985-4-15 205 San Mateo South end of Devil's Slide, both sides of SR1. From coast to saddle between San Pedro and Montara Mountain. 304 Comment
  CAS-BOT-BC54872  Erysimum franciscanum John H. Thomas 1961-5-7 9316 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  POM143100  Erysimum franciscanum Alice Eastwood 1903-2-8 3237 San Mateo Spring Valley Comment
  RSA101843  Erysimum franciscanum G. B. Rossbach 1939-3-28 905 San Mateo Below Crystal Springs Lake 61 Comment
  SBBG92004  Erysimum franciscanum H. E. and S. T. Parks 1930-3-10 401 San Mateo Spring Valley Lakes Comment
  UC1034935  Erysimum franciscanum G. B. and R. P. Rossbach 1939-3 901 a&b San Mateo dunes just back of high sea cliff very near Sharp Park Comment
  UC1034942  Erysimum franciscanum G. B. Rossbach 1938-5-18 837 San Mateo open bank on e side Crystal Springs Lake 106 Comment
  UC1034949  Erysimum franciscanum G. B. and R. P. Rossbach 1938-4-3 806 San Mateo crests and steep upper slopes San Bruno Hills 304 Comment
  UC334631  Erysimum franciscanum Hy. Edwards March 1877 77 San Mateo Colma Comment
  SJSU15961  Erythranthe guttata John Rawlings, Ken Hickman 2016-5-26 1837 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
  SD234189  Erythranthe guttata Virginia Pinkus Ryder 1964-2-21 78 San Mateo Near Davenport. 3 Comment
  CAS-BOT-BC420646  Escallonia rubra var. macrantha Elizabeth McClintock; Paul Reeberg 1989-3-14 s.n. San Mateo Uncommon, along Guadalupe Canyon Parkway west of the park kiosk, on the north side of the parkway. 182 Comment
  CAS-BOT-BC403530  Eschscholzia californica Alice Eastwood 1937-7-25 18893 San Mateo Pebble Beach, Pescadero Comment
  CAS-BOT-BC403551  Eschscholzia californica Ned Cahill 1974-4-18 125 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH3097  Eschscholzia californica Richard L. Garber 1971-5-11 7 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3099  Eschscholzia californica John H. Thomas 1975-5-26 17911 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC403542  Eschscholzia californica H. A. Dutton 1900-2-27 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  OBI48876  Eschscholzia californica S. Bagley 1969-3-28 San Mateo Near the San Fernando Game refuge 145 Comment
  CAS-BOT-BC110570  Eschscholzia crocea T. S. Brandegee May 22 s.n. San Mateo La Honda. Comment
  CAS-BOT-BC202732  Euonymus occidentalis M. Bourell; R. Patterson 1994-4-3 5297 San Mateo At northeast end of Hazelnut Trail near Weiler Ranch Road Trail. San Pedro Valley County Park 60 Comment
  CAS-BOT-BC202740  Euonymus occidentalis George Oberlander 1949-4-20 617 San Mateo San Francisco Watershed Reserve. Pilarcitos Comment
  RSA3091  Euonymus occidentalis C. B. Wolf 1931-8-21 1203 San Mateo 0.5 mi above east base of La Honda Grade; Santa Cruz Mts. 244 Comment
  SEINET12131905  Euonymus occidentalis Unknown 1932-1 9164 San Mateo Canons San Madero Creek Comment
  RSA130685  Euphorbia crenulata C. F. (illegible) 1894-3-28 s.n. San Mateo Lobitas road. Comment
  RSA176863  Euphorbia epithymoides John H. Thomas 1964-4-30 10342 San Mateo Palo Alto. San Francisquito Creek at University Avenue bridge. Comment
  JROH1966  Euphorbia lathyris Carol Zabel and Ruth Porter 1999-5-17 41 b San Mateo Jasper Ridge Biological Preserve, Stanford University; north side of trail 12 Comment
  RSA18354  Euphorbia lathyris C. B. Wolf 1929-5-25 3734 San Mateo 2 miles from Pescadero on Alpine Creek. Comment
  CDA19205  Euphorbia oblongata D. Pendleton 2001-4-3 PDR 064453 San Mateo San Francisco Peninusla; Along Sandhill Rd, next to Jasper Ridge Biological Reserve, Portola Valley. 0 Comment
  CDA19875  Euphorbia oblongata D. Pendleton 2002-5-24 PDR P 120140 San Mateo San Francisco Bay Area; N side of Westride Dr, 50 m E of Bolivar Ln, Portola Valley. 0 Comment
  JROH1970  Euphorbia spathulata Herbert Dengler 1963-4-21 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; 500' N.E. of serp. Comment
  RSA499127  Euphorbia spathulata L. S. Rose 1935-5-4 35151 San Mateo Burlingame. Comment
  JROH5918  Eurybia radulina John Hunter Thomas 1986-5-15 24042 San Mateo Jasper Ridge Biological Preserve, Stanford University 88 Comment
  CAS-BOT-BC310720  Euthamia occidentalis James McMurphy 1905-10-29 s.n. San Mateo Above Portola Comment
  RSA507774  Euthamia occidentalis J. C. Semple, S. Heard 1986-8-23 8596 San Mateo 7.5 km N of Santa Cruz County line on CA-1 Comment
  SEINET10887997  Festuca arundinacea P. Rubtzoff 1976-6-13 Rubtzoff 8633 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction and northwest of Fog Forest. Comment
  JROH5473  Festuca bromoides John Hunter Thomas 1983-4-20 21536 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing. Comment
  LA130809  Festuca californica David D. Keck; 1932-5-11 1499 San Mateo above Woodside on La Honda rd, E slope of Santa Cruz Mountains Comment
  CAS-BOT-BC278472  Festuca idahoensis George Oberlander 1950-4-23 799 San Mateo San Francisco Watershed Reserve Comment
  JROH5485  Festuca microstachys John Rawlings 2005-3-30 1016 San Mateo Jasper Ridge Biological Preserve, Stanford University. Growing around and in cracks of serpentine rock outcrops in north-facing serpentine grassland (Area H), uphill and west of the exclosure. 146 Comment
  JROH5491  Festuca microstachys Stephen N. Turitzin 1976-3-7 5 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5503  Festuca myuros Stephen N. Turitzin 1976-5-7 8 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC278862  Festuca occidentalis W. R. Dudley 1895-6-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Pescadero Creek Comment
  JROH5285  Festuca perennis John Hunter Thomas 1981-5-25 20635 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5291  Festuca perennis John Hunter Thomas 1988-5-3 24439 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD66325  Festuca rubra P. B. Kennedy 1914-7-5 San Mateo Moss Beach, Pacific Grove. Comment
  CAS-BOT-BC77694  Ficus carica John H. Thomas 1960-6-25 8795 San Mateo Redwood City, running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street 7 Comment
  RSA191944  Filago gallica R. F. Thorne, P. Everett 1963-6-9 32227 San Mateo On top of San Bruno Mountain. 335 Comment
  RSA499366  Fragaria californica T. Gertrude Williamson 1928-6-28 s.n. San Mateo La Honda Comment
  JEPS44879  Fragaria chiloensis W. L. Jepson 1921-4-3 9115 San Mateo canyon near Colma Comment
  UC466552  Fragaria chiloensis R. L. Pendleton 1907-4-20 629 San Mateo Colma Comment
  CAS-BOT-BC437036  Fragaria chiloensis Ray C. Bennett 1952-4-26 17 San Mateo Pescadero Beach Comment
  RSA523866  Fragaria chiloensis Chris E. True 1937-3-31 616 San Mateo Salada Beach. 610 Comment
  UC917281  Fragaria vesca W. A. Harvey and J. M. Tucker 1948-6-29 1705 San Mateo just w road to Portola State Park jct with Highway 5 (Skyline Blvd) (beside road to Portola State Park) Comment
  CAS-BOT-BC389686  Fragaria vesca subsp. californica Jeanie Nieri 1953-2-14 75 San Mateo Hillside 6 miles west of Belmont Comment
  CAS-BOT-BC457515  Fragaria vesca subsp. californica W. R. Dudley 1894-7-28 s.n. San Mateo hill between La Honda and Pescadero, Santa Cruz Mountain Pennisula Comment
  CAS-BOT-BC457518  Fragaria vesca subsp. californica James McMurphy 1906-4-30 s.n. San Mateo on top of grade between Portola and Woodside Comment
  CAS-BOT-BC457525  Fragaria vesca subsp. californica Elizabeth McClintock 1967-9-24 s.n. San Mateo Crocker Avenue, San Bruno Mountain Comment
  CAS-BOT-BC457528  Fragaria vesca subsp. californica J. H. Thomas 1949-3-29 192 San Mateo Kings Mountain. Comment
  SEINET11915234  Fragaria vesca subsp. californica L. S. Gill 1930-1 s.n. San Mateo Kuig Mt Comment
  CAS-BOT-BC52674  Frangula californica subsp. californica James Newman 1951-6-5 96 San Mateo Searsville Lake Comment
  JROH3541  Frangula californica subsp. californica John H. Thomas 1974-8-11 17509 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3548  Frangula californica subsp. californica John Hunter Thomas 1981-2-14 20211 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG28507  Frangula californica subsp. californica C. B. Wolf 1927-11-27 San Mateo just S of Pescadero Comment
  CAS-BOT-BC53599  Frangula californica subsp. tomentella Carl B. Wolf 1927-12-31 1473 San Mateo 1/2 way up Kings Mt. Comment
  JROH3536  Frangula californica subsp. tomentella John H. Thomas 1968-5-22 14459 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC153585  Frankenia salina L. R. Abrams 1906-9-29 San Mateo Cooley's Landing Comment
  SEINET7883472 Image available Franseria bipinnatifida Lewis S. Rose 1938-1 38226 San Mateo El Granada alt. 10 ft. 3 Comment
  CAS-BOT-BC223551  Fraxinus latifolia W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Peninsula. Near San Mateo Creek Comment
  SEINET6694664 Image available Fraxinus oregona W. R. Dudley 1893-1 San Mateo San francisquita creek near big tree Comment
  JROH4686  Fritillaria affinis John Hunter Thomas 1981-4-5 20278 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek Comment
  UC3641  Fritillaria affinis J. Burtt Davy 1895-4-20 1056 San Mateo Lake Pilarcitos Comment
  UC803943  Fritillaria affinis G. L. Stebbins Jr. 1949-6-5 3984 San Mateo 1/2 mi n of La Honda (along highway) Comment
  RSA371591  Fritillaria affinis Thomas S. Elias 1987-4-10 10336 San Mateo Along Canyon Road, north of Butano State Park Comment
  SD39121  Fritillaria liliacea Marie Cummings 1933-4-11 7 San Mateo Spring Valley Lake. Comment
  SEINET3557637 Image available Fritillaria liliacea Lewis S. Rose 1933-4-2 22049 San Mateo Redwood City. Comment
  CAS-BOT-BC258909  Galium Peter Rubtzoff 1988-6-25 9928 San Mateo Menlo Park, on Willow Road near Alma Street. Comment
  CAS-BOT-BC389733  Galium J. Lovelle 1973-8-5 37 San Mateo Mt. Ellen Trail Comment
  CAS-BOT-BC183621  Galium aparine Peter Rubtzoff; Roman Gankin 1975-5-21 7966 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  UCSB9136  Galium aparine Walker, Clifford 1954-4-20 San Mateo 50 yards from ocean; 1 mi S. of Half Moon Bay Comment
  JROH3796  Galium murale John H. Thomas 1974-4-25 17217 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3808  Galium porrigens var. porrigens John H. Thomas 1968-3-17 14185 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3817  Galium porrigens var. porrigens John Hunter Thomas 1986-5-17 24046 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dam to Rattlesnake Rock Comment
  JROH3819  Galium porrigens var. porrigens John Hunter Thomas 1992-5-25 25345 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC23986  Galium triflorum Mary Katherine Wicksten 1971-6-17 53 San Mateo Huddart Park on Chickadee Trail Comment
  JROH798  Gamochaeta ustulata John Hunter Thomas 1983-5-23 22239 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack side & low-flow crossing Comment
  CAS-BOT-BC194562  Garrya elliptica D. E. Breedlove 1974-5-13 36203 San Mateo Brushy slopes San Pedro Park, Pacifica 152 Comment
  SD41264  Garrya elliptica Delzie Demaree 1930-2-1 7312 San Mateo Los Trancos Woods. Comment
  CAS-BOT-BC278666  Gastridium phleoides C. F. Leitholt 1894-7-30 s.n. San Mateo Santa Cruz Mountain Peninsula. La Honda Comment
  JROH5188  Gastridium phleoides John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC59636  Gaultheria shallon Walter Knight; Irja Knight 1964-9-30 s.n. San Mateo Lower Kamchatka Point. Comment
  CDA5303  Gaura sinuata G. D. Barbe 1974-6-4 1824 San Mateo Middle Fork San Pedro Creek, southeast of Oddstad Boulevard, Linda Mar District. 0 Comment
  CAS-BOT-BC219145  Genista monspessulana Elizabeth McClintock; Paul Reeberg 1988-6-7 s.n. San Mateo above the intersection of San Bruno Avenue and Annis. San Bruno Mountains. Comment
  CAS-BOT-BC219150  Genista monspessulana Walter Knight; Irja Knight 1967-5-16 s.n. San Mateo Brisbane Comment
  JEPS121494  Genista monspessulana Adam C. Schneider with C. Matt Guilliams 2013-3-9 43 San Mateo Crystal Springs Reservoir Comment
  JROH2013  Genista monspessulana John Hunter Thomas 1983-4-3 21307 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  UCD119371  Genista monspessulana Annabelle Kleist 2008-5-28 Woo- 39 San Mateo Woodside, along Fox Hill Road. Comment
  UCSB11484  Genista monspessulana Olson, Jim 1962-4-15 San Mateo 1 mile south of La Honda on Skyline Boulevard 670 Comment
  CAS-BOT-BC219148  Genista monspessulana Doris M. Ladd 1954-5-1 50 San Mateo Road to La Honda, near Five Points Comment
  UCSB51744  Genista monspessulana Farneman, H. 1967-3-18 San Mateo On north side of Half Moon Bay Rd.; 1 mi. west of its junction with State Hwy. 35; San Francisco Penninsula 457 Comment
  JROH2621  Geranium dissectum John Hunter Thomas 1992-5-14 25225 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat ramp. Comment
  JROH3150  Gilia achilleifolia subsp. multicaulis D. D. Davis 1903-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; north slope, Searsville Ridge Comment
  POM209882  Gilia achilleifolia subsp. multicaulis D. D. Keck 1934-7-7 2931 San Mateo Kings Mountain, west of summit 610 Comment
  JROH3168  Gilia clivorum John Hunter Thomas 1991-5-2 25010 San Mateo Jasper Ridge Biological Preserve, Stanford University; near exclosure Comment
  CAS-BOT-BC123797  Gilia mellita Edward Lee Greene 1886-6-23 s.n. San Mateo Belmont Comment
  CAS-BOT-BC266510  Githopsis diffusa Fred Hemphill 1973-4-8 614 San Mateo San Carlos. N of Malabar Road and Melendy Drive 243 Comment
  CAS-BOT-BC303679  Glebionis coronaria Elizabeth McClintock; Paul Reeberg 1988-4-14 s.n. San Mateo San Bruno Mts. N of school at Lower Guadalupe Canyon Parkway Comment
  CAS-BOT-BC303683  Glebionis coronaria Robert S. Jr. Cox 1946-8-10 s.n. San Mateo Half Moon Bay Comment
  CAS-BOT-BC303684  Glebionis coronaria Elizabeth McClintock 1967-9-24 s.n. San Mateo San Bruno Mt. Crocker Ave Comment
  JROH2023  Glycyrrhiza lepidota John H. Thomas 1962-7-15 9923 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below dam Comment
  RSA218022  Gnaphalium californicum Walter Knight, I. Knight 1964-4-13 711 San Mateo Power Line Ridge Comment
  RSA18352  Gnaphalium chilense C. B. Wolf 1927-1-29 465 San Mateo Pescadero Comment
  POM224080  Gnaphalium luteoalbum J. T. Howell 1935-1-13 12578 San Mateo Lake San Andreas. Comment
  CAS-BOT-BC307438  Gnaphalium palustre R. S. Ferris 1917-10-19 726 San Mateo Crystal Springs Lake near dam Comment
  CAS-BOT-BC302083  Grindelia Paul Reeberg 1989-5-19 s.n. San Mateo San Bruno Mountains. On ridge between Firth Canron [Canyon] & Brisbane Ravine, uphill water tank 152 Comment
  SD12565  Grindelia arenicola Edith A. Purer 1933-7-27 5369 San Mateo 2 miles south of Pigeon Point Comment
  RSA201473  Grindelia camporum J. T. Howell 1964-12-6 41032 San Mateo Near Southern Pacific RR station, Millbrae. Comment
  CAS-BOT-BC304507  Grindelia hirsutula Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  CAS-BOT-BC304509  Grindelia hirsutula Paul H. Arnaud, Jr. 1963-9-15 s.n. San Mateo Redwood City Comment
  CAS-BOT-BC304521  Grindelia hirsutula J. T. Howell No date on label s.n. San Mateo Pigeon Pt. Comment
  CAS-BOT-BC304536  Grindelia hirsutula W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Peninsula. By road from Pilarcitos to San Andreas Comment
  JEPS29417  Grindelia hirsutula L. R. Heckard 1961-7-16 1264 San Mateo across road from transmitting station KQED (near summit of San Bruno Mt.); San Bruno Mt. 335 Comment
  JEPS89739  Grindelia hirsutula Dean W. Taylor 1988-3-30 9480 San Mateo n. slope of s.e. ridge San Bruno Mt. (near ridgecrest, right-of-way of eastern-most set of PG & E high-voltage powerlines crossing the mt.); Santa Cruz Mts., San Francisco South 7 1/2 Quad., San Bruno 237 Comment
  RSA296414  Grindelia hirsutula R. C. Bacigalupi, G. Thomas Robbins 1954-6-18 4550 San Mateo Along Alpine Road, 0.25 mile W of Skyline Blvd. 701 Comment
  UC1118555  Grindelia hirsutula G. E. Sindel 1935-7-25 309 San Mateo 0.25 mi n of Pescadero Creek (near mouth) Santa Cruz Quadrangle 6 Comment
  UC1536845  Grindelia hirsutula G. H. True 1936-6-7 480 San Mateo cove 2 mi s Pescadero 15 Comment
  UC483491  Grindelia hirsutula Ira L. Wiggins 1929-7-4 3799 San Mateo sea bluffs at Pescadero Beach Pescadero Beach Comment
  UC897072  Grindelia hirsutula Alice Eastwood 1912-6-10 322 San Mateo Crystal Springs Comment
  JROH827  Grindelia hirsutula John Hunter Thomas 1988-5-3 24442 San Mateo Jasper Ridge Biological Preserve, Stanford University; powerline draw Comment
  RSA18345  Grindelia stricta var. platyphylla C. B. Wolf 1927-1-29 473 San Mateo Pescadero Comment
  RSA638982  Grindelia stricta var. platyphylla R. F. Thorne, Percy C. Everett 1965-8-1 35075 San Mateo 21.5 miles S of Golden Gate Bridge. 69 Comment
  RSA97498  Grindelia stricta var. platyphylla L. S. Rose 1954-8-29 54114 San Mateo Montara. Comment
  JEPS54104  Guillenia lasiophylla R. J. Smith 1898-5 San Mateo Los Buellis Hills Mt. Hamilton Range Comment
  JROH835  Helenium puberulum John H. Thomas 1974-6-27 17449 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing, below Searsville Dam Comment
  JROH841  Helenium puberulum John Hunter Thomas 1981-7-12 20696 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH847  Helenium puberulum John Hunter Thomas 1992-6-8 25369 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM288424  Helenium puberulum Lyman Benson 1937-7-15 8453 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains; San Francisco Bay watershed. 244 Comment
  CAS-BOT-BC309525  Helenium puberulum Elizabeth McClintock; Paul Reeberg 1988-8-18 s.n. San Mateo San Bruno Mountains. Along Summer Seep Trail 220 Comment
  HSC23888  Helenium puberulum Mary Katherine Wicksten 1971-6-22 94 San Mateo Huddart Park; by Madrone Area, toward Miwok Shelter Comment
  JROH860  Helianthella californica var. californica John Hunter Thomas 1988-5-3 24444 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  JROH850  Helianthella californica var. californica John H. Thomas 1963-5-1 10043 San Mateo Jasper Ridge Biological Preserve, Stanford University; at western end of ridge Comment
  CAS-BOT-BC305340  Helianthella castanea Philip Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  CAS-BOT-BC224051  Helianthemum scoparium Fred Hemphill 1973-4-22 832 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  HSC23781  Helianthemum scoparium Mary Katherine Wicksten 1971-6-17 63 San Mateo Huddart Park, by Werder Shelter Comment
  JROH1832  Helianthemum scoparium John H. Thomas 1961-5-5 9220 San Mateo Jasper Ridge Biological Preserve, Stanford University; at NW end of ridge 152 Comment
  JROH1834  Helianthemum scoparium John H. Thomas 1961-6-14 9537 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC305364  Helianthus annuus Ned Cahill 1974-10-8 373 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  UC1069463  Helianthus californicus G. E. Sindel 1935-8-27 341 San Mateo 2 miles S. of Crystal Springs Lake; Santa Cruz Quadrangle Comment
  SD39700  Heliotropium curassavicum Edith A. Purer 1933-7-27 5360 San Mateo Pigeon Point Comment
  CAS-BOT-BC305926  Helminthotheca echioides John H. Thomas 1955-11-9 5505 San Mateo Fallow Brussel Sprout field near Sanchez Adobe House, San Pedro Valley, about 8.5 miles south of San Francisco - San Mateo County line, and 0.9 mile inland from the ocean Comment
  SEINET3892510  Helminthotheca echioides R. L. Johnson 2012-4-6 12 -002 San Mateo Half Moon Bay, roadside on Redondo Beach Rd.; 0 25 Comment
  CAS-BOT-BC313453  Hemizonia congesta subsp. luzulifolia Josephine D. Randall 1907-7-23 78 San Mateo Near Crystal Springs Lake, Santa Cruz Peninsula Comment
  JEPS44416  Hemizonia congesta subsp. luzulifolia Lewis S. Rose 1965-8-27 65094 San Mateo w Redwood City; Emerald Lake 182 Comment
  CAS-BOT-BC313454  Hemizonia congesta subsp. luzulifolia J. McMurphy 1909-8-29 s.n. San Mateo Summit between Crystal Springs Lake and Belmont, Santa Cruz Peninsula Comment
  CAS-BOT-BC314930  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1909-5-20 s.n. San Mateo Summit between San Mateo and Crystal Springs Lakes Comment
  CAS-BOT-BC314942  Hemizonia congesta subsp. luzulifolia H. M. Hall 1915-8-28 10113 San Mateo East side of Crystal Springs Lake 121 Comment
  CAS-BOT-BC314951  Hemizonia congesta subsp. luzulifolia Alice Eastwood 1919-9-1 s.n. San Mateo San Mateo Comment
  HSC24007  Hemizonia congesta subsp. luzulifolia Mary Katherine Wicksten 1971-7-20 180 San Mateo Huddart Park, below Redwood Shelter Comment
  RSA184823  Hemizonia corymbosa subsp. corymbosa L. S. Rose 1965-9-4 65100 San Mateo Skyline Blvd and half Moon Bay Road, Cahill Ridge 244 Comment
  RSA276347  Hemizonia corymbosa subsp. corymbosa Jane Turner, Francis M. Ball 1962-7-7 1080 San Mateo Highway 1, ca. 10 miles N of Santa Cruz County line. Comment
  RSA81560  Hemizonia luzulifolia James I. McMurphy 1908-8-20 s.n. San Mateo Near causeway, between lakes, Crystal Springs Reservoir. Comment
  POM223640  Hemizonia luzulifolia subsp. rudis L. S. Rose 1935-9-21 35652 San Mateo Redwood City. Comment
  JROH249  Heracleum maximum John H. Thomas 1961-5-5 9210 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below Searsville Dam 76 Comment
  POM287748  Heracleum maximum Lyman Benson 1931-4-13 2710 San Mateo Behind Stanford University, bottom land at junction with Corte Madera Creek Comment
  JROH884  Hesperevax sparsiflora var. sparsiflora John H. Thomas 1970-1-1 15493 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH893  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1981-5-25 20643 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC403866  Hesperocnide tenella Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon Comment
  JROH4234  Hesperocnide tenella John Hunter Thomas 1992-4-23 25149 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Rattlesnake Rocks and along trail to redwoods Comment
  UCSB24049  Hesperocyparis abramsiana Dutton, H. 1949-9-19 San Mateo Common corners of sections 11 & 12 and 13 & 14 Range 4 West, on the north bank of the North Fork of Butano Creek Comment
  CAS-BOT-BC176213  Hesperolinon congestum A. A. Heller 1907-5-28 8572 San Mateo Above Crystal Springs on the Half Moon Bay road Comment
  CAS-BOT-BC176214  Hesperolinon congestum Hester R. Davis 1920-6-1 179 San Mateo Back of Redwood City Comment
  JROH2926  Hesperolinon micranthum John H. Thomas 1968-5-22 14460 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2937  Hesperolinon micranthum John Hunter Thomas 1986-6-9 24091 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2939  Hesperolinon micranthum John Hunter Thomas 1992-5-25 25342 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3677  Heteromeles arbutifolia John H. Thomas 1965-12-19 11459 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3680  Heteromeles arbutifolia John H. Thomas 1974-5-29 17406 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA451286  Heteromeles arbutifolia E. A. Purer 1932-7-18 15930 San Mateo Kings Mtn Comment
  CAS-BOT-BC310272  Heterotheca grandiflora Philip Wheeler 1966-10-16 s.n. San Mateo San Bruno Mountain. Crocker Industrial Park Comment
  SD30675  Heterotheca sessiliflora subsp. bolanderi Edith A. Purer 1933-8-4 5400 San Mateo Along Bayshore Highway near Redwood City. Comment
  CAS-BOT-BC310769  Heterotheca sessiliflora subsp. echioides John H. Thomas 1961-8-27 9702 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC310767  Heterotheca sessiliflora subsp. echioides Lewis S. Rose 1966-8-20 66087 San Mateo San Bruno Mountain, Summit 365 Comment
  CAS-BOT-BC420893  Heuchera micrantha var. diversifolia A. D. E. Elmer 1903-7-1 4762 San Mateo Pilarcitos Stone Dam Comment
  CAS-BOT-BC420894  Heuchera micrantha var. diversifolia Margaret A. Barry 1938-5-29 262 San Mateo Corte Madera Creek near Coal Mine Ridge Comment
  CAS-BOT-BC424376  Heuchera micrantha var. hartwegii John H. Thomas 1967-5-7 12837 San Mateo Near intersection of Bean Hollow and Pescadero roads, about 1/2 mile westward from Pescadero. 91 Comment
  CAS-BOT-BC319636  Hieracium albiflorum Josephine D. Randall 1907-6-29 82 San Mateo Portola Valley, Santa Cruz Peninsula Comment
  POM209883  Hieracium albiflorum D. D. Keck 1934-7-7 2927 San Mateo Kings Mountain, just east of summit. 549 Comment
  UC1137088  Hierochloe occidentalis August L. Hormay 1932-3-6 San Mateo near Pescadero (redwood belt); Blumequist Mill Comment
  SEINET10598881  Hierochloe occidentalis Charles F. Baker 1902-1-15 Baker 247 San Mateo West side King's Mountain. About ledges and rocky places Comment
  SEINET4584971  Hierochloe occidentalis R. Oliver 1976-4-18 s.n. San Mateo San Mateo Memorial Park Comment
  CAS-BOT-BC55439  Hirschfeldia incana Saichi Kawahara 1968-6-15 440 San Mateo Pescadero Beach, 150 yards south of mouth of Pescadero Creek, Highway 1. 4 Comment
  SEINET954025  Hoita orbicularis Lewis S. Rose 1959-1 59031 San Mateo San Mateo, Black Mtn. Rd. near Skyline Blvd. 122 Comment
  CAS-BOT-BC289249  Holcus lanatus George Oberlander 1949-7-10 262 San Mateo San Francisco Watershed Reserve, south boundary Comment
  JROH5213  Holcus lanatus John Hunter Thomas 1982-6-7 21033 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA121223  Holcus lanatus G. E. Sindel 1935-8-14 332 San Mateo Half mile N of Purisama Creek. 320 Comment
  SEINET10591390  Holcus lanatus Delzie Demaree 1933-6-12 Demaree 10374 San Mateo Bader Station. S. San Francisco. Small bottom. Comment
  UC1127995  Holodiscus discolor G. E. Sindel 1935-7-23 297 San Mateo 3/4 mi e of Jones Gulch 274 Comment
  SEINET10867105  Hookera terrestris Helen M. Edwards 1917-4-12 Edwards s.n. 1917 San Mateo Crystal Sprngs Lake Comment
  RSA185013  Hordeum brachyantherum L. S. Rose 1963-4-27 63001 San Mateo Skyline Blvd, open hills west of San Mateo. 91 Comment
  CAS-BOT-BC284682  Hordeum brachyantherum subsp. brachyantherum John H. Thomas 1963-5-20 10111 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  UCD85382  Hordeum brachyantherum subsp. brachyantherum August L. Hormay 1932-5-29 s.n. San Mateo San Bruno. Comment
  SEINET10826894  Hordeum brachyantherum subsp. brachyantherum Adolph D. E. Elmer Elmer 4851 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC285044  Hordeum depressum John Thomas Howell 1953-5-20 28969 San Mateo Redwood City Comment
  CAS-BOT-BC285153  Hordeum marinum subsp. gussoneanum Le Roy Abrams 1901-5-1 1660 San Mateo Cooley's Landing Comment
  CAS-BOT-BC285154  Hordeum marinum subsp. gussoneanum George Oberlander 1950-7-15 1040 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  JROH5238  Hordeum marinum subsp. gussoneanum John H. Thomas 1971-5-30 15953 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5246  Hordeum marinum subsp. gussoneanum John Hunter Thomas 1986-5-17 24050 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dam to Rattlesnake Rock. Comment
  CAS-BOT-BC289395  Hordeum murinum subsp. glaucum Ned Cahill 1974-5-30 319 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi. westward from Redwood City Comment
  CAS-BOT-BC289461  Hordeum murinum subsp. leporinum Javier Penalosa 1963-3-30 2765 San Mateo Guadalupe Valley, San Bruno Mountain 30 Comment
  JROH5257  Hordeum murinum subsp. leporinum John H. Thomas 1975-4-18 17783 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5259  Hordeum murinum subsp. leporinum John Hunter Thomas 1987-5-15 24287 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Low flow crossing. Comment
  JROH5262  Hordeum murinum subsp. leporinum John Rawlings 2013-4-10 1129 San Mateo Jasper Ridge Biological Preserve, Stanford University. Where the brick path ends at the visitor parking lot of the Sun Field Station. 119 Comment
  CAS-BOT-BC536139  Horkelia californica J. H. Thomas 1954-6-11 4273 San Mateo 0.8 mile north of Pescadero Creek 60 Comment
  UC1128147  Horkelia californica H. S. Yates 1935-2-3 5008 San Mateo 1/2 mi se Pigeon Pt.; Santa Cruz quad. 30 Comment
  CAS-BOT-BC536142  Horkelia californica Josephine D. Randall 1907-7-23 338 San Mateo Near Crystal Springs Lake, Santa Cruz Peninsula Comment
  SBBG32394  Horkelia californica var. californica L. S. Rose 1966-8-20 San Mateo head of Colma Cyn, San Bruno Mtn 205 Comment
  UC162493  Horkelia cuneata subsp. sericea A. A. Heller 1906-6-8 8374 San Mateo near Ocean View; San Francisco Comment
  CAS-BOT-BC143925  Horkelia cuneata var. sericea W. R. Dudley 1901-5-11 s.n. San Mateo Near Colma Comment
  UCD128238  Hydrocotyle sibthorpioides O. M. Scott and Sons 1950-4-10 s.n. San Mateo San Mateo. 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
  CAS-BOT-BC311395  Hypochaeris glabra Fred Hemphill 1973-5-14 820 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH913  Hypochaeris glabra John H. Thomas 1965-4-28 10596 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC007758  Hypochaeris glabra Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH928  Hypochaeris radicata John H. Thomas 1974-5-3 17237 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM361226  Hypochaeris radicata E. A. Purer 1933-7-27 5394 San Mateo Two miles south of Pigeon Point Comment
  POM55230  Hypochaeris radicata A. D. E. Elmer 1903-04 4861 San Mateo Lake San Andreas Comment
  SD39734  Hypochaeris radicata Edith A. Purer 1933-7-27 5342 San Mateo Pigeon Point Comment
  SJSU2307  Iris douglasiana C. W. Sharsmith 1950-4-16 6636 San Mateo near Pescadero Point near Pescadero Comment
  POM250983  Iris douglasiana Lyman Benson 1935-4-27 6417 San Mateo La Honda Road, Santa Cruz Mts, east of Skyline Blvd., San Francisco Bay watershed. 457 Comment
  RSA136530  Iris douglasiana Lee W. Lenz, E. K. Balls 1952-5-6 17096 San Mateo Old La Honda Road to Palo Alto, northeast from Highway 5 305 Comment
  RSA366795  Iris douglasiana Russell S. Woglum 1935-5-25 1169 San Mateo Skyline Drive, San Francisco to Big Basin Comment
  RSA51238  Iris douglasiana Peter H. Raven 1950-4-16 1796 San Mateo Summit ridge, San Bruno Mountains. 244 Comment
  CAS-BOT-BC133657  Iris longipetala W. R. Dudley 1894-5-1 s.n. San Mateo On road from Woodside to Crystal Springs Comment
  CAS-BOT-BC133659  Iris longipetala Rimo Bacigalupi 1922-3-26 s.n. San Mateo Between Gazos Creek and Pigeon Pt. Comment
  CAS-BOT-BC133666  Iris longipetala Walter Knight; Irja Knight 1965-3-21 956 San Mateo Along ridge near power lines at Brisbane end Comment
  CAS-BOT-BC133673  Iris longipetala Javier Penalosa 1963-3-30 2707 San Mateo North of Randolph Drive at Hillside Blvd. in SSF 91 Comment
  CAS-BOT-BC133674  Iris longipetala Walter Knight; Irja Knight 1964-3-16 985 San Mateo Point San Bruno Comment
  SJSU7515  Iris longipetala Lewis S. Rose 1968-3-26 68009 San Mateo S base San Bruno Mts, S San Francisco 30 Comment
  SBBG1123  Iris longipetala H. and M. Dearing 1933-5-14 2766 San Mateo Skyline Boulevard, S of San Francisco Comment
  RSA366831  Iris missouriensis Lewis S. Rose 1938-4-1 38111 San Mateo San Bruno Hills, above Visitacion Valley 61 Comment
  JROH4432  Iris pseudacorus John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4434  Iris pseudacorus John Hunter Thomas 1981-7-12 20693 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of lake Comment
  CAS-BOT-BC57729  Isoetes howellii W. R. Dudley 1910-5-26 s.n. San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC112608  Isolepis cernua Herbert L. Mason 1921-6-2 s.n. San Mateo Pebble Beach near Pescadero Comment
  CAS-BOT-BC112622  Isolepis cernua W. R. Dudley 1909-10-4 s.n. San Mateo E. twin-pond, North San Mateo County. Comment
  SEINET4170785 Image available Isolepis cernua Malcolm A. Nobs, S. Galen Smith 1949-8-15 1565 San Mateo Marshes at sharp Park Comment
  POM223675  Jaumea carnosa L. S. Rose 1935-8-13 35566 San Mateo Salada. Comment
  CAS-BOT-BC102322  Juglans hindsii D. E. Breedlove 1973-9-26 35553 San Mateo Pescadero Creek County Park 365 Comment
  JROH2771  Juglans hindsii John H. Thomas 1976-11-5 18432 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  UCD164089  Juncus breweri Peter Rubtzoff 1977-11-24 9145 San Mateo San Bruno Mountains.'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH4450  Juncus bufonius var. bufonius John H. Thomas 1974-5-19 17384 C San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5851  Juncus bufonius var. bufonius John Rawlings 2016-5-19 1759 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 2 about 115 meters from wooden trail marker near Preserve boundary fence east of Escobar Gate. 104 Comment
  POM290138  Juncus bufonius var. bufonius Lyman Benson 1930-5-26 2145 A San Mateo Stanford University. Lake Searsville. 152 Comment
  RSA17947  Juncus bufonius var. bufonius Carl B. Wolf, Le Roy Abrams 1927-6-4 s.n. San Mateo Pescadero. Comment
  SJSU15771  Juncus bufonius var. bufonius Toni Corelli 2010-6-1 632 San Mateo Wavecrest, west of Highway 1 in Half Moon Bay. 25 Comment
  JROH4468  Juncus bufonius var. occidentalis John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC23990  Juncus confusus Mary Katherine Wicksten 1971-7-2 153 San Mateo Huddart Park at Miwok area Comment
  UCR244744  Juncus effusus var. brunneus Peter Rubtzoff, Roman Gankin 1975-9-11 8372 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 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
  UC1133660  Juncus lescurii G. E. Sindel 1935-7-25 308 San Mateo 1 mi w Pescadero; Santa Cruz Quad. 1 Comment
  UCR244653  Juncus lescurii Peter Rubtzoff 1976-6-30 8708 San Mateo Central Coast, San Bruno Mountains. 'Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; westernmost part of the area on slope across fence 220 Comment
  RSA6313  Juncus occidentalis D. D. Keck 1932-5-6 1468 San Mateo Belmont. Comment
  JEPS128399  Juncus patens Adam C. Schneider 2013-5-17 129 San Mateo Crystal Springs Reservoir. Comment
  JROH4475  Juncus patens Kent E. Holsinger 1979-12-18 83 San Mateo Jasper Ridge Biological Preserve, Stanford University. E side of Searsville Lake, S side of big bay. Comment
  JROH5797  Juncus phaeocephalus John Rawlings 2016-5-3 1779 San Mateo Jasper Ridge Biological Preserve, Stanford University. South of Trail 9 and west of Rd F in contact drainage 185 Comment
  CAS-BOT-BC182761  Juncus phaeocephalus Peter Rubtzoff 1978-7-8 9230 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC210074  Juncus phaeocephalus Peter Rubtzoff 1980-8-4 9562 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Westernmost part of the area on slope across fence. Comment
  CAS-BOT-BC210147  Juncus phaeocephalus Peter Rubtzoff 1978-7-8 9226 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  UC625335  Juncus phaeocephalus var. paniculatus L. R. Abrams and I. L. Wiggins 1939-6-3 426 San Mateo Ano Nuevo Point Comment
  JEPS67129  Juncus phaeocephalus var. phaeocephalus unknown 1925-5-28 1 San Mateo Salada Comment
  SJSU15448  Koeleria gerardi John Rawlings 2012-5-27 1105 San Mateo Near high point of Dusk-footed Woodrat Trail (north loop trail), Pulgas Ridge Open Space Preserve (MROSD). 246 Comment
Read comments
Jun 7 2017
  JROH5264  Koeleria macrantha John H. Thomas unspecified s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA100995  Koeleria macrantha G. Oberlander 1950-4-23 914 San Mateo Sweeney Ridge, San Francisco Watershed Reserve Comment
  RSA87125  Koeleria macrantha D. D. Keck 1932-5-6 1476 San Mateo Above Millbrae Highlands Comment
  UCD86022  Koeleria macrantha A. A. Beetle 1942-6-11 3597 San Mateo rt. 5, 15 miles south of San Bruno. Comment
  UCD159535  Lactuca D. S. Park 2011-4-13 283 San Mateo Alpine Rd, Portola Valley. Near construction site. Growing next to fence. Disturbed/shaded habitat. 230 Comment
  JROH948  Lactuca saligna John Hunter Thomas 1983-7-20 22904 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC341636  Lagophylla ramosissima E. A. McGregor 1906-9-23 s.n. San Mateo Corte de Madera Comment
  CAS-BOT-BC272430  Lamarckia aurea W. R. Dudley 1906-5-19 s.n. San Mateo Hillside toward Cordilleras Creek and Whipple Road on Britton Ranch west of Redwood City, Santa Cruz Peninsula 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-BC339047  Lasthenia californica Javier Penalosa 1963-3-30 2727 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF 91 Comment
  CHSC68146  Lasthenia californica A. D. E. Elmer 1903-4-1 4507 San Mateo San Bruno Hills. Comment
  CAS-BOT-BC339049  Lasthenia californica Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  CAS-BOT-BC339058  Lasthenia californica Lewis S. Rose 1933-5-3 33141 San Mateo Montara Comment
  CAS-BOT-BC339088  Lasthenia californica W. R. Dudley 1899-5-14 s.n. San Mateo About hills southwest of Baden Comment
  JEPS89767  Lasthenia californica subsp. californica Dean W. Taylor 1989-3-30 10188 San Mateo ridge separating Guadalupe Valley from Vistacion Valley (Right-of way of easternmost set of PG&E high-voltage powerlines crossing crest of ne ridge of San Bruno Mountain); Santa Cruz Mountains, San Bruno Mountain Comment
  UC202790  Lasthenia californica subsp. californica A. D. E. Elmer 1903-4-1 4738 San Mateo San Bruno Hills Comment
  UC517990  Lasthenia californica subsp. californica Lewis S. Rose 1933-4-30 33128 San Mateo Redwood City Comment
  RSA262209  Lasthenia glabrata subsp. glabrata John H. Thomas 1971-5-2 15794 San Mateo Near intersection of Canada and Edgewater roads; about 3 miles westward from Redwood City. 152 Comment
  CAS-BOT-BC355546  Lasthenia glabrata var. glabrata A. D. E. Elmer 1903-5-1 4426 San Mateo Millbrae Comment
  CAS-BOT-BC360403  Lasthenia glabrata var. glabrata Ned Cahill 1974-4-23 166 San Mateo Near intersection of Canada and Edgewood Roads, about 3 mi westward from Redwood City. Comment
  UC30427  Lasthenia gracilis Ivar Tidestrom 1894-5-1 San Mateo Comment
  CAS-BOT-BC361417  Lasthenia maritima Sue Roberts 1954-5-1 69 San Mateo Pescadero Beach Comment
  CAS-BOT-BC368186  Lasthenia minor Robert Robertson 1959-5-1 114 San Mateo Pescadero Beach. 9 Comment
  UC188985  Lasthenia minor Michener and Bioletti 1892-5-1 San Mateo Cemeteries Comment
  SJSU11831  Lasthenia minor T. J. Sammis 1974-5-2 San Mateo Pescadero Rd 2.2 mi W of Pescadero Comment
  UCSC007017  Lasthenia minor Randall Morgan 1988-6-5 1235 San Mateo Pescadero, Pigeon Point - Parking area N of Lighthouse Comment
  CAS-BOT-BC204916  Lathyrus Elizabeth McClintock 1972-5-10 s.n. San Mateo San Bruno Mountain. Just belong Parking Lot at the summit Comment
  POM194716  Lathyrus littoralis H. M. Hall 1924-6-17 11957 San Mateo Salada Comment
  RSA158048  Lathyrus littoralis W. R. Russell 1961-6-5 s.n. San Mateo 1 block west of business district, north end of Pacifica (formerly Sharp Park). Comment
  UCD106381  Lathyrus littoralis W. R. Russell 1961-6-5 s.n. San Mateo 1 block west of business district, north end of Pacifica (formerly Sharp Park). Comment
  SEINET956312  Lathyrus vestitus Ira L. Wiggins 1925-1 1661 San Mateo On King Mountain Road three fourths of a mile above Woodside in the old cut over redwood. Comment
  POM87741  Lathyrus vestitus subsp. bolanderi L. R. Abrams 1902-4-13 2342 San Mateo Crystal Springs Lake. Comment
  POM16718  Lathyrus vestitus subsp. vestitus A. D. E. Elmer 1903-05 4745 San Mateo Kings Mountain. Comment
  RSA120413  Lathyrus vestitus subsp. vestitus Josephine Randall 1908-3-22 s.n. San Mateo Corte de Madera Canyon near Alpine Road Comment
  UCR121561  Lathyrus vestitus var. vestitus George K. Helmkamp, E. A. Helmkamp 1999-6-28 4972 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  RSA20413  Lavatera arborea I. L. Wiggins 1935-6-29 8050 San Mateo Bluffs near the beach near old Pebble Beach Hotel, between Pescardero and Pingeo Point Comment
  CAS-BOT-BC323176  Layia chrysanthemoides J McMurphy 1909-6-13 s.n. San Mateo San Bruno HIlls Comment
  CAS-BOT-BC323155  Layia chrysanthemoides David D. Keck 1932-5-6 1488 San Mateo 4 miles W of Burlingame on Skyline Boulevard. Comment
  CAS-BOT-BC321096  Layia gaillardioides W. R. Dudley 1905-6-19 s.n. San Mateo Alpine School, Black Mt. Comment
  UC30641  Layia gaillardioides Ivar Tidestrom 1894-5-1 San Mateo Comment
  CAS-BOT-BC327477  Layia hieracioides Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain; base of Quarry 2. Comment
  CAS-BOT-BC327483  Layia hieracioides Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain; Devil's Arroyo Comment
  CAS-BOT-BC327484  Layia hieracioides Lewis S. Rose 1936-5-28 36309 San Mateo Emerald Lake, W of Redwood City 91 Comment
  POM53350  Layia hieracioides C. F. Baker 1902-5-4 742 San Mateo Woodside. Comment
  CAS-BOT-BC327453  Layia hieracioides David D. Keck 1933-5-11 2299 San Mateo Near west base of Montara MOuntain Grade (south side of mountain) Comment
  CAS-BOT-BC327454  Layia hieracioides David D. Keck 1933-5-11 2306 San Mateo Skyline Boulevard, east of Salada, northern San Mateo County. Comment
  CAS-BOT-BC327465  Layia hieracioides Alice Eastwood; John Thomas Howell 1938-6-16 60047 San Mateo Ano Nuevo Pines Comment
  CAS-BOT-BC327479  Layia hieracioides Walter Knight; Irja Knight 1965-4-25 1085 San Mateo San Bruno Mountain; Devil's Arroyo Comment
  CAS-BOT-BC327511  Layia hieracioides C. G. Pringle 1882-7-11 s.n. San Mateo Aptos Comment
  CAS-BOT-BC382076  Layia platyglossa Roxana S. Ferris 1921-4-7 21030 San Mateo San Bruno Mt. 213 Comment
  CAS-BOT-BC382085  Layia platyglossa Ned Cahill 1975-1-8 392 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JEPS121448  Layia platyglossa Adam C. Schneider with C. Matt Guilliams 2013-3-9 25 San Mateo Crystal Springs Reservoir Comment
  JEPS127807  Layia platyglossa Adam C. Schneider with C. Matt Guilliams 2013-4-7 69 San Mateo Along dirt road running parallel to overhead power lines. GPS coordinates approximate. Comment
  JROH996  Layia platyglossa John H. Thomas 1973-4-14 16565 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM190415  Layia platyglossa subsp. campestris D. D. Keck 1932-6-18 1980 San Mateo Skyline Boulevard, at Langley Hill (SW of Stanford University) 610 Comment
  RSA18086  Lemna gibba Carl B. Wolf 1929-4-29 3662 San Mateo Small reservoir, 1 mile S of Portola, San Mateo Comment
  CAS-BOT-BC221532  Lepechinia calycina Lewis S. Rose 1933-6-9 33225 San Mateo Belmont Comment
  CAS-BOT-BC221540  Lepechinia calycina Fred Hemphill 1973-4-15 717 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  JROH2784  Lepechinia calycina John H. Thomas 1955-5-6 5015 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2793  Lepechinia calycina John H. Thomas 1975-5-2 17850 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA218029  Lepechinia calycina Walter Knight, I. Knight 1964-5-19 s.n. San Mateo Crocker Hills, San Bruno Mountain. Comment
  CAS-BOT-BC89133  Lepidium didymum Ira L. Wiggins 1949-7-2 12198 San Mateo Pescadero Beach. Comment
  RSA52666  Lepidium didymum I. L. Wiggins 1949-7-2 12198 San Mateo Pescadero Beach. 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
  JROH1550  Lepidium nitidum John Hunter Thomas 1982-1-3 20793 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC12746  Lepidium oxycarpum David D. Keck 1932-3-24 1401 San Mateo Redwood City. At border of San Francisco Bay. Comment
  JROH1561  Lepidium strictum John Hunter Thomas 1981-4-7 20296 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab 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-BC226598  Leptosiphon ambiguus C. F. B. 1902-5-4 753 San Mateo Woodside Comment
  POM65197  Leptosiphon ambiguus C. F. Baker 1902-5-4 s.n. San Mateo Woodside. Comment
  CAS-BOT-BC226726  Leptosiphon latisectus W. R. Dudley 1901-5-11 s.n. San Mateo Santa Cruz Peninsula. Land due west of Lake Merced Comment
  CAS-BOT-BC226731  Leptosiphon latisectus A. D. E. Elmer 1903-4-1 4746 San Mateo Cemeteries Comment
  UCD118865  Leptosiphon liniflorus Irene Brown 1959-5-15 148 San Mateo 6 miles south of entrance to refuge, San Francisco Game Refuge. 21 Comment
  CAS-BOT-BC324061  Lessingia arachnoidea George Oberlander 1949-8-20 366 San Mateo Near San Andreas Lake Comment
  CAS-BOT-BC325499  Lessingia arachnoidea W. Spence 1960-7-2 555 San Mateo Along Route 5, Crystal Springs Lake Comment
  RSA100975  Lessingia arachnoidea George Oberlander 1949-8-20 s.n. San Mateo Near San andreas Lake, San Francisco Watershed Reserve Comment
  SEINET5782289 Image available Lessingia arachnoidea L. S. Rose 1941-9-6 41434 San Mateo San Mateo Canyon Comment
  UC1287459  Lessingia arachnoidea Willard Spence 1960-10-16 635 San Mateo Ralston Road 0.2 mi off Skyline Blvd. Comment
  UC33162  Lessingia arachnoidea Alice Eastwood 1896-9-1 San Mateo Crystal Springs Reservoir Comment
  NY180564  Lessingia bakeri C. F. Baker 1902-10-20 1834 San Mateo Searsville Comment
  SJSU15428  Lessingia germanorum Toni Corelli 2011-9-14 720 a San Mateo Northeast of Hillside Park, above houses 107 Comment
  SJSU15430  Lessingia germanorum Toni Corelli 2011-9-14 720 c San Mateo Northeast of Hillside Park, above houses 107 Comment
  CAS-BOT-BC324072  Lessingia germanorum Elizabeth McClintock; Paul Reeberg 1989-8-19 s.n. San Mateo San Bruno Mountains, Reservoir Hill. 137 Comment
  JROH1012  Lessingia glandulifera var. glandulifera Rachel Hays 1972-7-26 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  JROH1022  Lessingia glandulifera var. glandulifera John Hunter Thomas 1983-6-29 22714 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC324171  Lessingia hololeuca Cherie Wetzel 1969-7-8 924 San Mateo near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  JROH1035  Lessingia hololeuca John Hunter Thomas 1982-9-23 21164 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5816  Lessingia hololeuca John Rawlings, Cary Tronson 2016-10-4 1948 San Mateo Jasper Ridge Biological Preserve, Stanford University. Location may be supplied to researchers on request. 111 Comment
  UCD134052  Lessingia hololeuca Lewis S. Rose 1964-9-5 64072 San Mateo Emerald Lake, west of Redwood City. 152 Comment
  SEINET10958233 Image available Lessingia hololeuca Charles F. Baker 1902-10-20 Baker 1834 San Mateo Small colonies on grassy slopes. Comment
  SEINET10617599 Image available Lessingia hololeuca var. arachnoidea Charles F. Baker 1902-9-2 Baker 1548 San Mateo Crystal Springs Lake. Large colonies along roadsides. Comment
  JROH5965  Lessingia pectinata var. tenuipes Ann Lambrecht, Alice Cummings 2017-6-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Road E overlook bend 118 Comment
  CAS-BOT-BC342091  Leucanthemum vulgare Elizabeth McClintock; Paul Reeberg 1987-6-12 s.n. San Mateo San Bruno Mountains. Along road to Camp Silverspot Comment
  UCD64581  Leymus mollis Beecher Crampton 1962-6-11 6511 San Mateo Sharp Park, Mori's Point. Comment
  RSA108327  Leymus triticoides Frank W. Gould 1941-5-10 1292 San Mateo 1 mile north of Pigeon Point lighthouse 15 Comment
  SEINET6633381  Ligusticum apiifolium A. D. E. Elmer 1903-1 4803 San Mateo San Mateo Comment
  SEINET3154762  Limnanthes douglasii L. S. Rose 1935-5-4 35146 San Mateo Skyline Blvd., W. of San Bruno Comment
  UC137902  Limnanthes douglasii subsp. douglasii C. F. Baker 1903-4-8 1916 San Mateo San Andreas Lake Comment
  JEPS95209  Limnanthes macounii R. Ornduff 1998-4-12 10168 San Mateo e side of Hwy 1, just s of Etheldore St, opposited Half Moon Bay airport Moss Beach Comment
  SEINET3358242 Image available Limonium californicum Lewis S. Rose 1942-1 42225 San Mateo Brisbane 1 Comment
  UCD166487  Limosella Peter Rubtzoff 1965-10-19 5661 San Mateo Pilarcitos Lake. Comment
  NY336940  Linanthus croceus A. Eastwood 1901-5-19 San Mateo Bleubuin? Comment
Read comments
Nov 16 2015
  UC73617  Linanthus parviflorus Milo S. Baker 1904-5-15 San Mateo near Burlingame Comment
  SEINET12279094  Linanthus pharnaceoides M. T. Doutt 1931-1 418 San Mateo Skyline Blvd Comment
  CDA6307  Linaria purpurea T. C. Fuller 1968-10-3 17659 San Mateo Christie s Crescent Nursery, Half Moon Bay. 0 Comment
  SEINET5629646 Image available Linum congestum Unknown 1907-1 8572 San Mateo Above Crystal Springs Comment
  CDA34068  Lithocarpus densiflorus D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yinli Guo 2011-4-22 11 .157 San Mateo Santa Cruz Mountains; Along Route 9, ~5 km E of Big Basin Redwoods. Comment
  CAS-BOT-BC36075  Lithocarpus densiflorus var. densiflorus Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  RSA12769  Lithocarpus densiflorus var. densiflorus Carl B. Wolf 1934-11-12 6241 San Mateo Alpine Creek Rd. from La Honda to Pescadero, about 2 mi. from La Honda, Santa Cruz Mts. 305 Comment
  CAS-BOT-BC430972  Lithophragma bolanderi Le Roy Abrams 1901-4-1 1165 San Mateo near Woodside Comment
  RSA274343  Lithophragma heterophyllum Lyman Benson 1928-4-21 102 San Mateo Jaspar Ridge. Stanford University. Santa Cruz mtn range. San Francisquito Creek. 152 Comment
  CAS-BOT-BC342466  Logfia gallica John H. Thomas 1961-5-7 9265 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC342473  Logfia gallica Eric Walther 1920-5-1 s.n. San Mateo Woodside Comment
  CAS-BOT-BC173835  Lolium multiflorum Peter Rubtzoff 1977-6-21 9059 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, northwest of Fog Forest. 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
  UC1132202  Lolium multiflorum N. K. Carlson 1935-6-29 110 San Mateo 1 mi s Pescadero; Santa Cruz Quadrangle Comment
  UC1132203  Lolium multiflorum H. S. Yates 1935-5-8 5224 San Mateo 1 mi n Bolsa Pt.; Santa Cruz Quad. Comment
  POM132621  Lomatium caruifolium C. F. Baker 1902-3-30 426 San Mateo Crystal Springs Lake Comment
  JROH255  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1955-5-6 5012 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC144367  Lomatium dasycarpum subsp. dasycarpum C. F. Baker 1902-4-6 460 San Mateo Crystal Springs Lake Comment
  JROH275  Lomatium macrocarpum John H. Thomas 1963-3-20 10026 San Mateo Jasper Ridge Biological Preserve, Stanford University; serpentine area on north side of ridge near Westridge end Comment
  CAS-BOT-BC240602  Lonicera hispidula W. R. Dudley 1894-3-24 s.n. San Mateo Santa Cruz Mountain Peninsula. Upper Pescadero Creek Comment
  JROH1661  Lonicera hispidula John Hunter Thomas 1981-7-24 20732 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SFV3590  Lonicera hispidula K. A. Wilson 1961-6-24 1237 San Mateo Santa Cruz Mountains Skyline Blvd. (California Highway 5). 625 Comment
  POM284226  Lonicera hispidula var. vacillans Lyman Benson 1928-12-15 831 San Mateo Near La Honda; Santa Cruz Mt. Range. 244 Comment
  RSA6423  Lonicera hispidula var. vacillans D. D. Keck 1932-8-13 1753 San Mateo Alpine Creek Road above Rolph's Ranch, east slope of Santa Cruz Mtns. 549 Comment
  UCR51650  Lonicera involucrata R. Ascanio 1988-4-17 s.n. San Mateo E on Gazo Creek Road off Hwy 1, c. 2 mi. north of Ano Nuevo State Reserve 85 Comment
  POM46739  Lonicera involucrata var. ledebourii C. F. Baker 1903-4-8 1918 San Mateo San Andreas Lake Comment
  UC1536785  Lonicera involucrata var. ledebourii G. H. True 1936-4-5 387 San Mateo canyon between San Gregorio and Pescadero 30 Comment
  CAS-BOT-BC243972  Lonicera involucrata var. ledebourii George Oberlander 1950-4-2 599 San Mateo South boundary, San Franciso Watershed Reserve Comment
  UCR121554  Lotus corniculatus George K. Helmkamp, E. A. Helmkamp 1999-6-28 4990 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  JROH2046  Lotus corniculatus John Hunter Thomas 1982-5-18 20937 San Mateo Jasper Ridge Biological Preserve, Stanford University; old racing oval Comment
  HSC23905  Lotus scoparius Mary Katherine Wicksten 1971-6-21 85 San Mateo Huddart Park Comment
  HSC98283  Lotus unifoliolatus var. unifoliolatus L. S. Rose 1964-9-5 64071 San Mateo Emerald Lake W of Redwood City 244 Comment
  RSA6288  Lupinus affinis D. D. Keck 1932-5-11 1769 San Mateo Two miles north of San Gregorio. 15 Comment
  CAS-BOT-BC195814  Lupinus albifrons var. albifrons Charles Piper Smith 1908-5-31 1441 San Mateo San Mateo, San Mateo Canon [Canyon] Comment
  CAS-BOT-BC195783  Lupinus albifrons var. albifrons Charles Piper Smith 1948-4-23 48144 San Mateo Sharps Park cutoff, 1/2 mile east Comment
  CAS-BOT-BC195784  Lupinus albifrons var. albifrons Charles Piper Smith 1946-3-26 46116 San Mateo Highway 5, San Francisco County Jail Road north Comment
  CAS-BOT-BC195791  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-21 48460 San Mateo Highway 5 - junction San Bruno Road 3, 0.8 miles south Comment
  CAS-BOT-BC195813  Lupinus albifrons var. albifrons W. R. Dudley 1894-4-21 s.n. San Mateo Ravine of San Mateo Creek 3 miles above town Comment
  RSA134045  Lupinus albifrons var. albifrons W. R. Dudley 1894-4-21 s.n. San Mateo 3 miles above town, ravine of San Mateo Creek. Comment
  CAS-BOT-BC196106  Lupinus albifrons var. collinus Javier Penalosa 1963-3-9 2685 San Mateo 1/2 mi. east of 1314 ft. summit 304 Comment
  RSA0065263  Lupinus arboreus Daisie Huang 2006-8-7 06080702 San Mateo South of Half Moon Bay, Hwy 1. 46 Comment
  UC1129343  Lupinus arboreus A. E. Wieslander 1928-9-26 34 San Mateo 2 mi s San Gregorio (Plot #13); Santa Cruz Quad., s of San Gregorio Comment
  CAS-BOT-BC196436  Lupinus arboreus J. Ed. McClellan; Bonnie McClellan 1976-6-7 s.n. San Mateo Jeep Fire Trail, Butano State Park Comment
  SEINET10488480  Lupinus arboreus Charles Piper Smith 1948-4-23 Smith 48140 San Mateo Hwy 1. 1.1 Miles n montara Comment
  RSA10285  Lupinus arboreus var. arboreus H. A. Barker 1927-5-14 664 San Mateo North of Half Moon Bay. Comment
  RSA226875  Lupinus bicolor subsp. pipersmithii L. R. Abrams 1914-4-24 5095 San Mateo Menlo Heights Comment
  POM10639  Lupinus bicolor subsp. umbellatus C. F. Baker 1902-5-10 816 San Mateo Summit of Coast Range. Comment
  POM11076  Lupinus densiflorus var. palustris A. D. E. Elmer 1903-06 4413 San Mateo Lake San Andreas. Comment
  POM10876  Lupinus formosus var. formosus C. F. Baker 1903-4-1 1708 San Mateo Black Mountain. Comment
  SEINET10490752  Lupinus formosus var. formosus Walter Knight, Irja Knight 1964-9-2 Knight 723 San Mateo Foot of buckeye canyon in grassland. Comment
  SEINET11071961 Image available Lupinus latifolius A. A. Heller 1907-5-23 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  JROH5799  Lupinus latifolius var. latifolius John Rawlings 2016-4-4 1701 San Mateo Jasper Ridge Biological Preserve, Stanford University; Douglas Iris site 94 Comment
  SD37896  Lupinus latifolius var. latifolius Delzie Demaree 1932-4-9 8979 San Mateo Near entrance to [Gov.?] Ralph Estate Comment
  UCSC011283  Lupinus latifolius var. latifolius Unknown 1972-5-26 s.n. San Mateo Waddell Creek Area Comment
  UC1303093  Lupinus nanus James McMurphy 1911-4-24 San Mateo corner between San Francisquito and Los Trancos creeks near Stanford University; betw San Francisquito and Los Trancos creeks Comment
  UC201931  Lupinus nanus Inez Ray Smith San Mateo Crystal Spring Lakes Comment
  SJSU10761  Lupinus nanus H. L. Elliot 1958-5-31 129 San Mateo Jasper Ridge 7 mi NW of Stanford Univ Comment
  POM276302  Lupinus pachylobus Lyman D. Benson 1935-4-27 6419 San Mateo La Honda Road, Santa Cruz Mts, east of Skyline Blvd., San Francisco Bay watershed. 457 Comment
  CAS-BOT-BC157981  Lupinus polycarpus Peter Rubtzoff 1979-7-26 9296 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. In upper par to fEast Fork Colma Creek canyon area Comment
  HSC34853  Lupinus succulentus Thomas W. Nelson San Mateo Beside Hwy. 280 S of San Francisco Comment
  JROH2145  Lupinus succulentus John H. Thomas 1974-4-12 17143 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Escobar gate Comment
  HSC76497  Lupinus vallicola subsp. apricus Charles Piper Smith 1946-3-26 46118 San Mateo Wood side, 2.3 mi. N Comment
  UC311903  Lupinus variicolor A. D. E. Elmer April, 1903 4915 San Mateo Lake San Andreas Comment
  SEINET10489104  Lupinus variicolor Smith 1947-4-25 Smith 47184 San Mateo Montara, rocky cut, 2.4 mi n. Petals mostly yellow. Comment
  JROH5726  Luzula comosa var. comosa John Rawlings 2015-3-15 1652 San Mateo Jasper Ridge Biological Preserve, Stanford University; small opening off trail 8 in oak woodland. 126 Comment
  CAS-BOT-BC441265  Luzula macrantha Margaret A. Barry 1937-4-21 7 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC441268  Luzula macrantha Ira L. Wiggins 1925-4-1 1684 San Mateo First bridge across small creek on Kings Mountain Road above Woodside Comment
  CAS-BOT-BC441270  Luzula macrantha J. H. Thomas 1949-3-29 187 San Mateo King's Mountain Comment
  UCR279850  Luzula subsessilis Peter Rubtzoff 1976-3-28 8450 San Mateo San Francisco Bay Region, San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction; East Fork Colma Creek Canyon 220 Comment
  JROH4165  Lycopersicon esculentum John Hunter Thomas 1981-10-25 20767 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5907  Lysimachia arvensis L. Nordby 1982-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the Searsville Lab on the west side of the lake Comment
  SD39672  Lythrum hyssopifolia Edith A. Purer 1933-7-27 5366 San Mateo 2.0 miles south of Pigeon Point. Comment
  UCR248337  Lythrum hyssopifolia Peter Rubtzoff 1987-8-26 9837 San Mateo San Bruno Mountain, 'Saddle' area non north side of Guadalupe Canyon. Parkway west of Radio Road junction; northwestern part of the area along old Guadalupe Road 213 Comment
  RSA0011331  Lythrum hyssopifolia Josephine Randall 1907-6-29 244 San Mateo Kings Mt. Road; Santa Cruz Peninsula. Comment
  RSA210921  Madia Cherie L. Wetzel 1969-7-28 994 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  POM54251  Madia elegans subsp. vernalis A. D. E. Elmer 1903-05 4662 San Mateo Alpine School House. Comment
  CAS-BOT-BC344491  Madia exigua D. E. Breedlove 1974-5-13 36227 San Mateo Slopes San Pedro Valley Park, Pacifica 152 Comment
  JROH1040  Madia exigua John H. Thomas 1958-5-10 7141 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1063  Madia exigua John Hunter Thomas 1992-5-5 25219 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam and vicinity Comment
  JROH5660  Madia exigua John Rawlings 2014-5-23 1269 San Mateo Jasper Ridge Biological Preserve, Stanford University; up-slope from boat dock (aka Searsville Lab Landing). 104 Comment
  CAS-BOT-BC344521  Madia exigua R. E. Frenkel 1964-5-26 508 San Mateo On Portola Ridge Road, SFWD, 0.7 mile north of Sawyer Ridge Road 320 Comment
  CAS-BOT-BC343335  Madia gracilis David D. Keck 1932-6-1 1788 San Mateo Above Woodside on the La Honda road, east slope of the Santa Cruz Mtns. 305 Comment
  CAS-BOT-BC343338  Madia gracilis David D. Keck 1932-6-1 1787 San Mateo Above Woodside on the La Honda road, east slope of the Santa Cruz Mtns. 305 Comment
  JROH1088  Madia gracilis John Hunter Thomas 1987-5-15 24286 A San Mateo Jasper Ridge Biological Preserve, Stanford University; near picnic area Comment
  JROH1095  Madia gracilis John Hunter Thomas 1992-5-5 25215 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam and vicinity Comment
  RSA176604  Madia madioides John H. Thomas 1961-6-20 9555 San Mateo Portola State Park, near junction of Peters and Pescadero Creeks 152 Comment
  CAS-BOT-BC345115  Madia sativa David D. Keck 1933-11-2 2628 San Mateo 3.5 mi. S.W. of Pescadero, within 100 m. of ocean Comment
  JEPS40342  Madia sativa L. M. Newlon 1921-1-1 240 San Mateo from Salada to Mussel Rock Comment
  LA209924  Madia sativa Ira L. Wiggins; 1929-7-4 3796 San Mateo Pescadero Beach Comment
  CAS-BOT-BC345118  Madia sativa David D. Keck 1932-8-11 1745 San Mateo Skyline Blvd., about 1 mile south of junction with Alpine Creek road, Santa Cruz Mts., Santa Clara--San Mateo Co. line 640 Comment
  CAS-BOT-BC345128  Madia sativa Lewis S. Rose 1966-8-6 66078 San Mateo San Bruno Mountain. Head of Colma Canyon 213 Comment
  UCSB11486  Maianthemum racemosum Olson, Jim 1962-4-17 San Mateo 5 miles southeast of Halfmoon Bay on road to San Mateo. 45 Comment
  CAS-BOT-BC512113  Maianthemum racemosum subsp. amplexicaule Ira L. Wiggins 1928-4-14 2916 San Mateo Alpine Creek Road Comment
  CAS-BOT-BC512114  Maianthemum racemosum subsp. amplexicaule Margaret A. Barry 1937-5-15 131 San Mateo Woods on Coal Mine Ridge Comment
  CAS-BOT-BC514167  Maianthemum stellatum John H. Thomas 1961-5-7 9280 San Mateo San Bruno Mountain in northern part of county Comment
  CHSC56088  Maianthemum stellatum Steven H. Roth 1980-4-4 16 San Mateo 200 m southeast of Portola Road at the Portola Valley Library, and 5 mi southwest of the north end of Stanford Linear Accelerator. Comment
  JROH4705  Maianthemum stellatum John H. Thomas 1970-5-16 15629 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC514156  Maianthemum stellatum H. A. Lewis 1908-4-1 s.n. San Mateo Los Trancos Woods Comment
  CAS-BOT-BC514160  Maianthemum stellatum W. R. Dudley 1900-3-18 s. n. San Mateo Near San Andreas Comment
  CAS-BOT-BC514169  Maianthemum stellatum Walter & Irja Knight 1964-5-4 s. n. San Mateo Colma Canyon, south ridge Comment
  CAS-BOT-BC203909  Malacothamnus aboriginum A. A. Heller 1901-7-13 s.n. San Mateo Spring Valley Lake Comment
  UC138331  Malacothamnus aboriginum J. W. Congdon 1902-7-20 San Mateo Spring Valley Comment
Read comments
Aug 31 2006
  UC762999  Malacothamnus davidsonii R. F. Hoover 1941-4-23 4906 San Mateo Redwood City hills 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
  JROH2960  Malacothamnus fasciculatus D. E. Breedlove 1971-5-31 19352 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
  UC109094  Malacothamnus hallii Alice Eastwood 1891-10-27 San Mateo Hills back of Belmont Belmont Comment
  UCD39014  Malva arborea Beecher Crampton 1962-6-11 6510 San Mateo Pacifica, Sharp Park at Mori's Point. Comment
  SEINET7247931  Malva arborea Bob Schmalzel 1974-1 s.n. San Mateo Growing along highway 1 200 yards from the Pacific Ocean 9 miles south of Half Moon Bay. 9 Comment
  CAS-BOT-BC206683  Malva assurgentiflora John H. Thomas 1967-5-2 12734 San Mateo Colma, near Hillside Blvd. at Cypress Lawn Cemetery Comment
  CAS-BOT-BC206684  Malva assurgentiflora Ira L. Wiggins 1975-5-26 22161 San Mateo Upper slope of bank of San Francisquito Creek, ca 150 m upstream from Chaucer/Pope Street Bridge, Menlo Park Comment
  RSA226763  Malva nicaeensis I. L. Wiggins 1969-5-25 21025 San Mateo On vacant lot at corner of Woodland Avenue and Pope Street, Menlo Park. Comment
  CHSC57018  Malva parviflora Steven Triano 1988-5-24 188 San Mateo Ca 100 ft sw of Hwy. 1, 750 ft s of Gazos Creek and 2.4 mi s of Pigeon Point Light Station. 6 Comment
  RSA226758  Malva parviflora I. L. Wiggins 1969-5-25 21024 San Mateo On vacant lot at corner of Woodland Avenue and Pope Street, Menlo Park. Comment
  CHSC28453  Marah fabacea Robert A. Schlising 1963-3-15 2449 San Mateo Along Skyline Blvd., near junction with Half Moon Bay Road. 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
  RSA120026  Marah fabacea W. R. Dudley 1896-4-6 s.n. San Mateo Foothills near Stanford University; Santa Cruz Peninsula. Comment
  SD39366  Marah oregana Edith A. Purer 1933-4-25 3656 San Mateo King's Mountain Road Comment
  JROH615  Matricaria discoidea John H. Thomas 1965-5-12 10647 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2152  Medicago arabica John H. Thomas 1971-4-24 15772 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2154  Medicago arabica John Hunter Thomas 1990-5-8 24853 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  UCR121590  Medicago lupulina George K. Helmkamp, E. A. Helmkamp 1999-6-28 4976 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  RSA128987  Medicago polymorpha Peter H. Raven 1950-6-3 2203 San Mateo along Millbrae Ave., Millbrae. 61 Comment
  RSA101048  Medicago sativa G. Oberlander 1949-9-25 382 San Mateo Lower Crystal Springs Lake, San Francisco Watershed Reserve. Comment
  JROH5308  Melica imperfecta John Hunter Thomas 1985-4-22 23551 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Rattlesnake Rocks Comment
  CAS-BOT-BC264188  Melica subulata W. R. Dudley 1898-4-24 s.n. San Mateo El Corte Madera, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC264239  Melica torreyana Ira L. Wiggins 1928-4-14 2904 San Mateo Alpine Creek Road Comment
  CAS-BOT-BC264242  Melica torreyana Dean Wm. Taylor 1988-4-8 9512 San Mateo Northern slope of southeast ridge of the mountain near the ridgecrest (San Francisco South 7 1/2 U.S.G.S quadrangle, right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain, San Bruno Mountain 237 Comment
  CAS-BOT-BC264251  Melica torreyana W. R. Dudley 1900-3-18 s.n. San Mateo By road to Jersey Farm, Santa Cruz Mountain Peninsula Comment
  JROH2190  Melilotus indicus John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC257357  Melilotus indicus Peter Rubtzoff 1988-6-9 9923 San Mateo San Bruno Mountains, Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, along Old Guadalupe Road in the northwestern part of the Saddle area, east of Saddle Trail junction. Comment
  JROH5933  Melilotus indicus M. Ray 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the Whiskey Hill Gate Comment
  POM284510  Melissa officinalis Lyman Benson 1937-8-15 8489 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains. 244 Comment
  JROH2828  Mentha X piperita John H. Thomas 1968-10-29 14856 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2811  Mentha pulegium John H. Thomas 1978-9-24 19338 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Searsville Lake Comment
  CDA4873  Mercurialis annua T. C. Fuller 1960-6-23 4542 San Mateo East fence line, Sanchez Adobe House, south side Linda Mar Boulevard, Pedro Valley. 0 Comment
  JROH3906  Micranthes californica John H. Thomas 1973-3-12 16483 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC348571  Micropus californicus var. californicus John H. Thomas 1974-4-11 17138 B San Mateo Area to the SE of Canada Road and Edgewood Road. NW of Woodside 152 Comment
  JROH1117  Micropus californicus var. californicus Hester Bavis 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1119  Micropus californicus var. californicus John H. Thomas 1958-5-10 7152 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC88389  Micropus californicus var. subvestitus E. L. Greene 1886-5-9 San Mateo Belmont Comment
  RSA130390  Micropus californicus var. subvestitus W. R. Dudley 1906-5-13 s.n. San Mateo Open hills southwest of San Mateo Comment
  SJSU15212  Microseris bigelovii Toni Corelli 2010-4-13 622 San Mateo Pigeon Point Light Station, north of light station, on edge of cliff west of Pigeon Point Road 6 Comment
  UC1594160  Microseris bigelovii Jerry Powell 1991-6-1 1604 San Mateo Edgewood County Park. Comment
  CAS-BOT-BC348764  Microseris bigelovii E. L. Greene 1886-5-10 s.n. San Mateo Near Belmont Comment
  JROH1141  Microseris douglasii subsp. douglasii John H. Thomas 1966-4-21 11562 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1148  Microseris douglasii subsp. douglasii John Hunter Thomas 1987-5-5 24249 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1153  Microseris douglasii subsp. douglasii John Rawlings, Toni Corelli 2010-5-19 0928 San Mateo Jasper Ridge Biological Preserve, Stanford University. Uphill from Trail 20. 88 Comment
  CAS-BOT-BC349035  Microseris douglasii subsp. douglasii Lewis S. Rose 1956-5-28 56079 A San Mateo Skyline Blvd w. of San Mateo 182 Comment
  POM87985  Microseris douglasii subsp. tenella L. R. Abrams 1902-5-4 2425 San Mateo Woodside- Serpentine Hills Comment
  CAS-BOT-BC349139  Microseris douglasii subsp. tenella K. L. Chambers 1953-5-12 462 San Mateo 3.2 mi. n. of Woodside on road to Crystal Springs Lake Comment
  JROH5921  Microsteris gracilis John H. Thomas 1982-3-12 20804 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near [Escobar horse trail gate] fence. Comment
  HSC20677  Mimulus aurantiacus var. aurantiacus P. A. Murphy 1965-4-16 27 San Mateo Ca. 22 mi. from Half Moon Bay on the Higgins Canyon Rd. Comment
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Jul 29 2015
  JROH4070  Mimulus aurantiacus var. aurantiacus W. R. Dudley 1895-6-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; top of Ridge near Searsville Dam Comment
  POM5073  Mimulus aurantiacus var. aurantiacus Stewart H. Burnham 1894-4-21 s.n. San Mateo [Unspecified] Comment
  UC885697  Mimulus aurantiacus var. aurantiacus E. W. Rust 1907-4-27 127 San Mateo vicinity Stanford University; King's Mountain 213 Comment
  UCD23299  Mimulus grandis Alan T. Whittemore 1976-5-29 s.n. San Mateo San Francisco Fish and Game Refuge. East side of Lower Crystal Springs Lake, on Sawyer's Camp Road, between L. San Andreas and Crystal Springs Lake. 100 Comment
  RSA60036  Mimulus guttatus G. R. Campbell 1950-6-7 15485 San Mateo 2 miles north of junction of San Mateo road and Hwy 5, hills west of San Jose. 457 Comment
  UCD122715  Mimulus microphyllus R. S. Woglum 1935-5-25 996 San Mateo King City-Coalinga, along State Highway 198. Comment
  CAS-BOT-BC388824  Minuartia douglasii Paul Arnaud 1941-5-3 s.n. San Mateo Redwood City - Hills - Jefferson Avenue Comment
  CAS-BOT-BC214081  Monardella villosa Cherie Wetzel 1969-7-8 920 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  SEINET13948729 Image available Monardella villosa Lewis S. Rose 1950-1 50135 San Mateo Emerald Lake region, hills W of Redwood City, alt ca 800 ft 244 Comment
  JEPS62416  Monardella villosa subsp. franciscana Dr. L. M. Newlon 1921-1 253 San Mateo Between Salada and Mussel Rock Comment
  SEINET10582385  Monardella villosa subsp. franciscana A. Graff 1993-6-14 Graff 1 San Mateo 0.2 miles down Bean Hollow Road south from its intersection with Pescadero Road, along right road cut. Windy, exposed, dry, steep, rocky cuts. Locally infrequent, with Artemisia californica, Baccharis pilularis, Mimulus aurantiacus, Eriophyllum stachaedifolium, Anaphalis margaritacea, Dudleya sp., Scrophularia californica, Eriogonum sp., grasses. Comment
  RSA681660  Monardella villosa subsp. obispoensis Deb Annuschka 1989-7-14 295 San Mateo Yerba Buena Nursery parking lot berm. Comment
  JROH2849  Monardella villosa subsp. villosa John Hunter Thomas 1983-6-29 22712 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2847  Monardella villosa subsp. villosa John Hunter Thomas 1982-6-7 21026 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  CAS-BOT-BC327789  Monolopia gracilens Otto Holm 1930-5-9 s.n. San Mateo Berenda Farm, near Redwood City Comment
  UC729683  Montia fontana Carl B. Wolf 1929-4-29 3661 San Mateo 1 mi n of summit of La Honda (on Skyline Boulevard); Santa Cruz Mountains Comment
  UC311167  Montia parvifolia A. D. E. Elmer May, 1903 4577 San Mateo Iverson's Place Comment
  POM164023  Montia parvifolia A. D. E. Elmer 1903-05 4577 San Mateo Iversons Place Comment
  UC1206482  Muilla maritima Le Roy Abrams 1902-4-13 2330 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC508578  Muilla maritima John H. Thomas 1949-4-1 216 San Mateo West of Redwood City Comment
  CAS-BOT-BC508586  Muilla maritima Le Roy Abrams 1902-4-13 2330 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC243706  Myoporum laetum Elizabeth McClintock; Paul Reeberg 1988-8-12 s.n. San Mateo Above Hillside School, San Bruno Mountains Comment
  RSA485312  Myosotis sylvatica Dave wheat 1968-4-7 86 San Mateo 1 mile west of intersection of Calif. 84 and calif. 35, 5 mi. north of la Honda. Comment
  SEINET7040215  Nama demissa A. G. Vestal 1962-3-26 s.n. San Mateo Laguna Salada. San Francisco South Quadrangle UTM Zone 10, 545384mE, 4164305mN. Comment
  CAS-BOT-BC259766  Nassella cernua Walter & Irja Knight 1965-5-15 s.n. San Mateo San Bruno Mountain. Pig Ranch Ravine Comment
  CAS-BOT-BC260231  Nassella pulchra Lewis S. Rose 1956-5-7 56071 San Mateo Skyline Boulevard W of San Mateo 182 Comment
  RSA106988  Nassella pulchra L. S. Rose 1956-5-7 56071 San Mateo Skyline Blvd west of San Mateo. 183 Comment
  RSA185012  Nassella pulchra L. S. Rose 1963-4-27 63000 San Mateo Skyline Blvd, open hills west of San Mateo. 91 Comment
  UCD87481  Nassella pulchra Beecher Crampton 1962-6-11 6486 San Mateo 5 miles west of Belmont, junction Ralston Ave. and Skyline Blvd. Comment
  JROH1575  Nasturtium officinale Carol Zabel 1989-8-11 28 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek bank near low-flow crossing at Road C Comment
  JROH3207  Navarretia heterodoxa John Hunter Thomas 1986-6-9 24092 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET3479173  Navarretia heterodoxa L. S. Rose 1941-6-12 41269 San Mateo West of Redwood City, West of Redwood City, Emerald Lake 120 Comment
  POM65143  Navarretia squarrosa C. F. Baker 1903-6-30 3356 San Mateo Crystal Springs. Comment
  SD38213  Navarretia squarrosa Edith A. Purer 1933-7-27 5346 San Mateo Partially stabilized sand dunes near Pigeon Point Comment
  UC125564  Navarretia squarrosa C. F. Baker 1903-6-30 3360 San Mateo Pilarcitos; ; Pilarcitos, San Mateo Co. Comment
  UCD48691  Navarretia squarrosa J. Skoss 1948-7-25 46 San Mateo San Vicente Canyon near Montara, San Mateo County, California. Comment
  JROH2756  Nemophila John Hunter Thomas 1992-4-23 25150 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Rattlesnake Rocks and along trail to redwoods Comment
  RSA101011  Nemophila menziesii var. atomaria G. Oberlander 1950-4-2 569 San Mateo Near San Andreas Lake, San Francisco Watershed Reserve Comment
  UC24258  Nemophila menziesii var. atomaria Ivar Tidestrom 1894-3-22 San Mateo Comment
  RSA15266  Nemophila menziesii var. menziesii Carl B. Wolf 1927-3-2 230 San Mateo Above Searsville Lake. Comment
  CAS-BOT-BC219475  Nemophila parviflora John Thomas Howell 1971-4-12 47600 San Mateo Butano State Park, Santa Cruz Mts. Comment
  CAS-BOT-BC219478  Nemophila parviflora Ira L. Wiggins 1928-4-14 2901 San Mateo Alpine Creek Road Comment
  CAS-BOT-BC219486  Nemophila parviflora Walter Knight; Irja Knight 1965-4-26 s.n. San Mateo San Bruno Mountain. In Devil's Arroyo Comment
  JROH2747  Nemophila parviflora var. parviflora Toni Corelli 2010-4-21 357 San Mateo Jasper Ridge Biological Preserve, Stanford University. Upslope of Trail 1, just east of landslide area 83 Comment
  JROH4171  Nicotiana acuminata var. multiflora John Rawlings 2012-8-20 1128 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek bed near Dennis Martin site marker 71 Comment
  CAS-BOT-BC140426  Oemleria cerasiformis W. R. Dudley 1900-3-18 s.n. San Mateo Below San Andreas Dam Comment
  CAS-BOT-BC140431  Oemleria cerasiformis David D. Keck 1932-3-6 1396 San Mateo Near La Honda, Santa Cruz Mountains Comment
  CAS-BOT-BC140445  Oemleria cerasiformis A. D. E. Elmer 1903-3-1 4579 San Mateo Woodside Comment
  CAS-BOT-BC140448  Oemleria cerasiformis Elizabeth McClintock 1967-4-16 s.n. San Mateo Buckeye Canyon Comment
  JROH3708  Oemleria cerasiformis John H. Thomas 1968-5-17 14184 San Mateo Jasper Ridge Biological Preserve, Stanford University. Brush slope at arm of Lake Comment
  JROH3719  Oemleria cerasiformis Toni Corelli 2003-1-28 253 San Mateo Jasper Ridge Biological Preserve, Stanford University; limited access Road A, that goes toward Whiskey Hill Gate 91 Comment
  RSA451812  Oemleria cerasiformis L. S. Rose 1937-3-14 37002 San Mateo Moist Hills, Emerald Lake. 198 Comment
  RSA451813  Oemleria cerasiformis L. S. Rose 1937-3-20 37004 San Mateo Moist Hills, Skyline Blvd. W. of Tanforan. 183 Comment
  JROH285  Oenanthe sarmentosa John Hunter Thomas 1978-7-8 19259 San Mateo Jasper Ridge Biological Preserve, Stanford University; behind causeway Comment
  JROH292  Oenanthe sarmentosa Carol Zabel 1989-8-1 18 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Middle Lake Comment
  UC873965  Oenothera elata subsp. hookeri L. R. Abrams and I. L. Wiggins 1939-6-3 438 San Mateo 2 mi n Pigeon Point Lighthouse Comment
  UCD18548  Oenothera elata subsp. hookeri Roman Gankin 1950-7-9 19 San Mateo 1 mile west of city of Pescadero toward State Hwy 1. Along the roadside. Swamp nearby. Near ocean. 15 Comment
  UC217609  Orobanche californica subsp. californica Katharine Brandegee San Mateo San Pedro. Comment
  CAS-BOT-BC500317  Orobanche uniflora subsp. occidentalis Walter Knight; Irja Knight 1965-4-25 1073 San Mateo San Bruno Mountain: Owl's Canyon ner rock ledges Comment
  CAS-BOT-BC500319  Orobanche uniflora subsp. occidentalis L. R. Abrams 1904-4-10 s.n. San Mateo San Mateo Canyon Comment
  CAS-BOT-BC500320  Orobanche uniflora subsp. occidentalis George Oberlander 1951-3-30 1172 San Mateo San Francisco Watershed Reserve: San Andreas Valley Comment
  POM49738  Orthocarpus densiflorus L. R. Abrams 1902-5-11 2455 San Mateo Crystal Lake. Comment
  RSA155563  Orthocarpus densiflorus L. S. Rose 1961-4-5 61035 San Mateo San Bruno Mountains. 366 Comment
  RSA152408  Orthocarpus faucibarbatus var. albidus R. C. Bacigalupi, G. Thomas Robbins 1954-6-18 4562 San Mateo Immediately behind Point Ano Nuevo. Comment
  RSA402039A  Orthocarpus lithospermoides Francis W. Pennell, D. D. Keck 1940-5-15 25413 San Mateo Emerald Lake, above Redwood City. 46 Comment
  SEINET12265143  Orthocarpus lithospermoides G. A. McCallum 1933-1 s.n. San Mateo in Spring Valley Comment
  POM226857  Orthocarpus pusillus L. R. Abrams 1935-4-2 5079 San Mateo Menlo Heights. Comment
  JROH301  Osmorhiza berteroi John Hunter Thomas 1989-6-6 24767 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0089401  Oxalis articulata subsp. rubra Dean Wm. Taylor 2016-2-23 21612 San Mateo Moss Beach; western shoulder bank of Highway 1 on the western ROW edge as it parallels Vallenman Street. 18 Comment
  UCSB9892  Oxalis articulata subsp. rubra Walker, Clifford 1954-4-20 San Mateo 50 yds from ocean, 1 mi. S. of Half Moon Bay Comment
  SEINET920558  Oxalis corniculata H. S. Gentry 1931-1 101 San Mateo Collected about 1 mile southeast of Holy Cross Cemetery. Comment
  POM87796  Oxalis oregana L. R. Abrams 1902-3-16 2279 San Mateo Kings Mountain. Comment
  POM353455  Oxalis oregana J. Doty 1969-3-26 602 San Mateo State Highway 34, 6 miles north of its junction with State Highway 38. Comment
  RSA130345  Oxalis oregana Roxana Stinchfield 1914-2-28 s.n. San Mateo Hills back of Woodside Comment
  UCSB22995  Oxalis oregana Simpson, C. 1967-3-21 San Mateo Butano Canyon, 3.3 miles east of junction of Cloverdale Road and Canyon Road 106 Comment
  CAS-BOT-BC253791  Panicum hillmanii Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountains. Brisbane Lagoon near railroad tracks Comment
  CAS-BOT-BC253858  Panicum miliaceum Jake Sigg; Peter Rubtzoff; Paul Reeberg 1991-8-10 s.n. San Mateo P. G. & E. Marsh Comment
  RSA152077  Parapholis incurva John H. Thomas 1962-5-12 9859 San Mateo Franklin Point. 0 Comment
  JROH5341  Paspalum dilatatum John Rawlings 2010-8-19 1061 San Mateo Jasper Ridge Biological Preserve, Stanford University. Adjacent to caretakers residence. 106 Comment
  JROH1405  Pectocarya pusilla Toni Corelli 2004-4-18 270 San Mateo Jasper Ridge Biological Preserve, Stanford University. On trail 9 182 Comment
  CAS-BOT-BC266632  Pedicularis Ned Cahill 1975-2-21 402 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles from Redwood City Comment
  JROH4111  Pedicularis densiflora John H. Thomas 1967-6-1 12970 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA209468  Pedicularis densiflora L. R. Abrams; 1914-3-1 5058 San Mateo Kings Mountain Road 152 Comment
  POM15581  Pedicularis densiflora A. D. E. Elmer 1903-05 4497 San Mateo Woodside. Comment
  UCR131712  Pedicularis densiflora C. B. Wolf 1927-2-26 00221 San Mateo La Honda Grade 305 Comment
  JROH4109  Pedicularis densiflora Charles F. Cleland 1963-3-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near picnic area below Searsville Dam near Searsville Creek Comment
  CAS-BOT-BC266664  Pedicularis dudleyi D. D. Davis No date on label s.n. San Mateo Santa Cruz Peninsula. Iverson's Peter's Creek Comment
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Jun 13 2020
  LA209494  Pedicularis dudleyi E. B. Copeland; 1982-4-9 707 San Mateo big basin of Pescadero creek Comment
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Jun 12 2020
  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
  JROH96  Pellaea andromedifolia John H. Thomas 1971-4-25 15784 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CDA35479  Pennisetum villosum Ed Finley 1992-11-1 PDR# 1013531 San Mateo South San Francisco; north of Oyster Point Blvd., Southern Pacific Railroad right-of-way. 0 Comment
  CAS-BOT-BC327978  Pentachaeta alsinoides John H. Thomas 1958-5-10 7155 San Mateo Jasper Ridge, about 5 mi SW of Palo Alto. 182 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-BC330500  Pentachaeta bellidiflora Lewis S. Rose 1946-4-7 46026 San Mateo Skyline Blvd., above San Andreas Lake. 152 Comment
  SJSU14193  Pentachaeta bellidiflora Toni Corelli 1989-4-2 201 San Mateo watershed triangle between Edgewood & Canada Rds 170 Comment
  UC133379  Pentachaeta exilis C. F. Baker 1902-4-4 446 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC77007  Pentagramma triangularis subsp. triangularis George Oberlander 1950-2-1 400 San Mateo San Francisco Watershed Reserve - Pilarcitos Canyon Comment
  CAS-BOT-BC77011  Pentagramma triangularis subsp. triangularis E. L. H. Knoche 1896-2-8 s.n. San Mateo Woodside Comment
  JROH307  Perideridia kelloggii John H. Thomas 1962-7-15 9914 San Mateo Jasper Ridge Biological Preserve, Stanford University; near northern end of ridge Comment
  JROH3247  Persicaria amphibia John H. Thomas 1974-8-3 17496 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3249  Persicaria amphibia John Hunter Thomas 1979-9-9 19728 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake. Comment
  CAS-BOT-BC418847  Persicaria hydropiperoides Ira L. Wiggins 1985-9-28 22299 San Mateo Bed of San Francisquito Creek, N side of creek bed, just above Pop [Pope] Street bridge, Menlo Park Comment
  CAS-BOT-BC418849  Persicaria hydropiperoides Roxana S. Ferris 1920-9-3 2047 San Mateo Santa Cruz Mountain Peninsula. 2nd Mud Lake, Coal Mine Ridge Comment
  JROH3271  Persicaria lapathifolia John Hunter Thomas 1979-9-9 19716 San Mateo Jasper Ridge Biological Preserve, Stanford University. Lake edge and delta. Comment
  JROH3284  Persicaria punctata John Hunter Thomas 1981-7-12 20695 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3282  Persicaria punctata Roxana S. Ferris 1924-10-6 4093 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake in Portola Highway. Comment
  CAS-BOT-BC330251  Petasites frigidus var. palmatus John Thomas Howell 1924-2-23 269 San Mateo King Mountain Comment
  JEPS37161  Petasites frigidus var. palmatus James G. Daly 232 San Mateo San Gregorio watershed Santa Cruz Mts. Comment
  RSA116727  Petasites frigidus var. palmatus M. N. paulson 1915-04 s.n. San Mateo La Honda Grade Comment
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Sep 11 2011
  RSA116637  Petasites palmatus W. R. Dudley 1894-3-23 s.n. San Mateo By La Honda Creek. Santa Cruz Mountain Peninsula. Comment
  RSA249523  Phacelia californica Robert F. Thorne, P. C. Everett 1965-8-1 35074 San Mateo 21.5 miles S of Golden Gate Bridge. 69 Comment
  UC131512  Phacelia distans C. F. Baker 1902-4-4 442 San Mateo Crystal Springs Lake Comment
  UC306562  Phacelia divaricata A. D. E. Elmer May, 1903 4481 San Mateo Crystal Springs Lake Comment
  POM289344  Phacelia malvifolia Lyman Benson 1937-6-27 8392 San Mateo Summit west of Belmont; Santa Cruz Mt. Range; S. F. Bay Watershed. 152 Comment
  RSA152046  Phacelia malvifolia John H. Thomas 1961-5-7 9282 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  UC24429  Phacelia malvifolia J. Burtt Davy 1893-6-22 1139 San Mateo Pilarcitos Comment
  SEINET3158196  Phacelia nemoralis L. S. Rose 1939-6-16 39281 San Mateo Skyline Blvd., above Woodside 564 Comment
  JROH2765  Phacelia rattanii D. E. Breedlove 1971-5-11 19332 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Pinon Road along fence Comment
  SJSU5407  Phaedranthus buccinatorius A. J. Cortopassi 1959-5-9 San Mateo 2319 Hillsdale Dr, Burlingame Comment
  JROH5353  Phalaris aquatica John H. Thomas 1973-6-15 16839 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5377  Phalaris aquatica John Hunter Thomas 1989-6-6 24760 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD88172  Phalaris aquatica Cecilia Murray 1963-7-23 s.n. San Mateo Portola Valley. Comment
  JROH5643  Phalaris brachystachys John Rawlings 2014-6-7 1263 San Mateo Jasper Ridge Biological Preserve, Stanford University; 100 yards west from Escobar Gate, 20 yards north of Road F 161 Comment
  UCD88576  Phalaris californica P. B. Kennedy 1928-5-2 s.n. San Mateo E of Daly City. Comment
  SEINET11695751  Phalaris californica Unknown 1962-6-11 6487 San Mateo 5 mi W of Belmont at junction of Ralston Avenue & Skyline Boulevard, foot of western slope of Pulgas Comment
  UC52847  Phlox gracilis J. Burtt Davy Jun 21 1893-Jun 23 1893 1044 San Mateo Pilarcitos Lake and Canyon Comment
  CAS-BOT-BC171183  Phoradendron serotinum subsp. tomentosum John H. Thomas 1960-3-1 8536 San Mateo Jasper Ridge, about 5 miles SW of Palo Alto 182 Comment
  CAS-BOT-BC171184  Phoradendron serotinum subsp. tomentosum Lewis S. Rose 1930-12-14 s.n. San Mateo Woodside Comment
  JROH3729  Physocarpus capitatus John Hunter Thomas 1981-4-5 20281 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek Comment
  SD37695  Physocarpus capitatus Edith A. Purer 1933-5-9 3604 San Mateo Stevens Creek Comment
  SEINET3819247 Image available Physocarpus capitatus Lewis S. Rose 1939-5-5 39093 San Mateo San Mateo Canyon. 46 Comment
  CDA34334  Pickeringia montana Anonymous 1973-5-8 San Mateo Hwy 84, three miles W of Woodside. 0 Comment
  SEINET10841226  Pickeringia montana Mary Susan Taylor 1978-8-30 Taylor 1867 San Mateo Comment
  CAS-BOT-BC206937  Pickeringia montana var. montana Daniel Cohen 1953-5-9 86 San Mateo La Honda Road nera Skyline Drive Comment
  CAS-BOT-BC206939  Pickeringia montana var. montana W. R. Dudley 1893-5-27 s.n. San Mateo Between Woodside and King's Mtn. - Santa Cruz Peninsula Comment
  CAS-BOT-BC78643  Pinus halepensis Elizabeth McClintock 1989-3-1 s.n. San Mateo Brisbane, above Crocker Industrial Park Comment
  SEINET11737741  Pinus halepensis Unknown 1931-1 7790 San Mateo Gov. Rolph Estate Comment
  JEPS121040  Pinus radiata Adam C. Schneider with C. Matt Guilliams 2013-3-8 40 San Mateo Crystal Springs Reservoir, Northern part of western margin of San Francisco Public Utilities Commission land. Comment
  JROH119  Pinus radiata John H. Thomas 1977-4-15 18531 San Mateo Jasper Ridge Biological Preserve, Stanford University 118 Comment
  JROH4769  Piperia John Hunter Thomas 1991-4-4 25081 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1371043  Piperia elegans Theodore F. Niehaus 1968-8-14 836 San Mateo ne slopes San Bruno Mountain Comment
  CAS-BOT-BC137311  Piperia elegans James McMurphy 1906-8-24 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  UC881324  Plagiobothrys chorisianus Alice Eastwood 1915-6-13 4717 San Mateo Granada Comment
  CAS-BOT-BC228130  Plagiobothrys chorisianus Walter & Irja Knight 1965-3-21 946 San Mateo San Bruno Mountains. North Power Line Ridge Comment
  CAS-BOT-BC228137  Plagiobothrys chorisianus Roxana S. Ferris 1920-4-23 1953 San Mateo The Santa Cruz Mountain Peninsula. On abandoned road above N fork of Peters Creek, about spring 640 Comment
  CAS-BOT-BC228139  Plagiobothrys chorisianus Greene 1903-6-5 11840 San Mateo The Pacific Slope. Point Montara Comment
  SEINET7076093  Plagiobothrys chorisianus var. hickmanii A. G. Vestal 1955-5-31 s.n. San Mateo Near Pebble Beach off Route 1. (NAD 27; 37.2369? deg. North Latitude, 122.4153? deg. West Longitude, UTM Zone 10, 551863mE, 4121109mN). [GPS Coordinate: WGS84/NAD83]. Comment
  UCD120893  Plagiobothrys nothofulvus R. E. Dengler 1960-4-12 20 San Mateo Jasper Ridge, Stanford Biological Reserve. 121 Comment
  JEPS61090  Plagiobothrys undulatus J. Burtt Davy Jun 21 1893-Jun 23 1893 1135 San Mateo Pilarcitos Lake and Canyon Comment
  UCR253350  Plantago coronopus A. C. Sanders 2014-8-3 41233 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
  POM61247  Plantago elongata subsp. pentasperma Copeland 1903-6-5 3327 San Mateo Montara Point. Comment
  JROH3125  Plantago erecta John Hunter Thomas 1991-5-2 25017 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM61501  Plantago erecta A. D. E. Elmer 1903-04 4795 San Mateo San Bruno Hills. Comment
  JROH3132  Plantago major John H. Thomas 1959-8-22 8082 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3134  Plantago major John Hunter Thomas 1977-6-16 18788 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM209656  Plantago maritima D. D. Keck 1934-7-7 2966 San Mateo Pigeon Point. Comment
  CAS-BOT-BC92023  Platystemon californicus Ynez Whilton Winblad 1941-4-13 s.n. San Mateo 1 mile north of Crystal Springs Reservoir. Comment
  POM204134  Platystemon californicus var. californicus L. S. Rose 1933-5-17 33170 San Mateo Redwood City. Comment
  UC890314  Plectritis brachystemon Alice Eastwood 1912-6-10 326 San Mateo Crystal Springs Comment
  SEINET14400463  Plectritis congesta Unknown 1938-5-4 718 San Mateo San Mateo County Comment
  JROH4250  Plectritis macrocera John H. Thomas 1971-4-24 15773 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC260961  Pleuropogon californicus var. californicus J. I. McMurphy 1906-5-8 s.n. San Mateo Road near head of Crystal Springs Lakes by road from Woodside to Byrnes Store Comment
  UCD92188  Poa August L. Hormay 1932-5-29 s.n. San Mateo Bay shore, San Bruno. Comment
  CAS-BOT-BC258900  Poa annua Peter Rubtzoff 1988-5-3 9913 San Mateo San Bruno Mountain, Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road in the northwest part of the Saddle area, east of Saddle Trail Junction. Comment
  JROH5396  Poa annua John H. Thomas 1965-2-22 10551 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM296661B  Poa annua Lyman Benson 1930-5-1 2061 San Mateo Stanford University. San Lorenzo Mt. Range. 91 Comment
  CAS-BOT-BC254546  Poa douglasii W. R. Dudley 1900-3-18 s.n. San Mateo Santa Cruz Mountain Peninsula. San Pedro Beach Comment
  RSA181329  Poa douglasii John H. Thomas 1965-5-1 10637 San Mateo at Pescadera Beach Comment
  CAS-BOT-BC246711  Poa howellii Margaret A. Barry 1937-5-15 93 San Mateo Coal Mine Ridge Comment
  JROH5413  Poa howellii John Rawlings 2013-4-16 1137 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2 extension south of the Dengler Transect after a short uphill section where the trail passes below a boulder. 84 Comment
  RSA135745  Poa kelloggii Roxana S. Ferris 1920-4-26 1963 San Mateo Near mouth of Canon of Pescadero Creek 244 Comment
  CAS-BOT-BC247422  Poa pratensis Phillip C. Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. No. West Radio Road Comment
  RSA785876  Poa pratensis Peter Rubtzoff 1976-5-22 8544 San Mateo 'Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  RSA135725  Poa secunda W. R. Dudley 1900-3-18 s.n. San Mateo San Andreas Lake Comment
  CAS-BOT-BC173841  Poa trivialis Peter Rubtzoff 1977-6-7 9030 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UC156969  Poa unilateralis Dr. E. B. Copeland 1903-6-17 3306 San Mateo Montera Point Comment
  JROH2856  Pogogyne serpylloides John H. Thomas 1966-4-29 11588 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA34563  Polygala californica M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 873 San Mateo Pacifica: San Pedro Valley County Park, along Brooks Creek Trail. 148 Comment
  UC1481762  Polygonum C. C. Hall 1922-5-17 108 -7 San Mateo Montara Comment
  JROH3265  Polygonum aviculare subsp. depressum John Hunter Thomas 1982-7-22 21087 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Saersville Lab. Comment
  CAS-BOT-BC414236  Polygonum aviculare subsp. depressum Ira L. Wiggins 1980-8-29 22251 San Mateo Sandy bed of San Francisquito Creek, 100--200 m upstream from Pope Street Bridge, Menlo Park Comment
  UC1101152  Polygonum lapathifolium Malcolm A. Nobs and S. Galen Smith 1949-8-26 1577 San Mateo pond in sand dunes about 1 mi s Half Moon Bay Comment
  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
  LA51064  Polygonum paronychia Ira L. Wiggins; 1929-7-4 3795 San Mateo Pescadero Beach Comment
  SEINET3086523 Image available Polygonum paronychia C. W. Sharsmith 1950-4-16 6627 San Mateo Vicinity of Pescadero Point, near Pescadero. Comment
  UCD100554  Polygonum patulum John Thomas Howell 1953-6-3 29057 San Mateo Bayshore Highway, Redwood City. Comment
  RSA169347  Polypodium californicum L. S. Rose 1964-2-6 64001 San Mateo Kings Mountain 610 Comment
  UC42880  Polypodium calirhiza McLean 1873-1 San Mateo Pescadero 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
  UC42919  Polypodium scouleri J. Burtt Davy 1893-6-22 San Mateo top of Pilarcitos Canyon Comment
  UC62435  Polypodium scouleri W. C. Blasdale 1893-6-23 San Mateo San Mateo Comment
  SEINET8044537  Polypodium vulgare var. intermedium Richard A. Dodge 1957-1 74 San Mateo 1 mi down Pig Ranch Road, from Skyline Boulevard, 3/4 mi from ocean. 91 Comment
  CAS-BOT-BC233155  Polypogon interruptus C. F. Leitholt 1894-8-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Devil's [Canon] Canyon Comment
  SEINET10602416  Polypogon interruptus Adolph D. E. Elmer Elmer 4694 San Mateo Pilarcitos Creek. Comment
  CAS-BOT-BC237353  Polypogon monspeliensis J. H. Thomas 1963-7-19 10184 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC237354  Polypogon monspeliensis C. F. Leithold 1894-8-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Devil's Canyon Comment
  JROH5438  Polypogon monspeliensis L. R. Abrams 1901-5-14 1639 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5446  Polypogon monspeliensis John H. Thomas 1976-10-16 18410 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry delta in Searsville Lake at the mouth of Corte de Madera Creek. 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
  POM313142  Polypogon monspeliensis H. L. Mason, Verne Grant 1946-8-28 13094 San Mateo On highway 5, about 3 miles south of Daly City Road. Comment
  RSA101028  Polypogon monspeliensis G. Oberlander 1949-7-24 312 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve. Comment
  SJSU4367  Polypogon viridis A. J. Cortopassi 1957-5-17 8 San Mateo Canyon Rd, Burlingame Comment
  CAS-BOT-BC72151  Polystichum californicum W. R. Dudley 1905-6-19 s.n. San Mateo near Camp on Pescadero Creek, Santa Cruz Mountains Comment
  CAS-BOT-BC72228  Polystichum dudleyi Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  UC1478463  Polystichum dudleyi Rimo Bacigalupi 1977-8-18 9336 San Mateo 4 mi nw Woodside (Pflueger Estate, upper reaches of West Union Creek, e base Kings Mt.) 213 Comment
  CAS-BOT-BC72225  Polystichum dudleyi George Oberlander 1950-7-15 1026 San Mateo Pilarcitos Canyon 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
  UC397065  Polystichum dudleyi unknown 1929-1 San Mateo 8 mi by road above Pescadero (Pescadero Creek) Comment
  CAS-BOT-BC76609  Polystichum munitum D. E. Breedlove 1973-9-26 35557 San Mateo Pescadero Creek County Park 365 Comment
  CAS-BOT-BC76643  Polystichum munitum Roman Gankin 1987-11-6 9885 San Mateo San Bruno Mountains - saddle area on north side of Guadelupe Canyon Parkway west of Radio Road junction. Comment
  RSA120192  Polystichum munitum S. S. Tillett, I. Sternback 1956-6-25 549 San Mateo Along road into Portola State Park 396 Comment
  SEINET11714701  Polystichum munitum Unknown 1932-1 8922 San Mateo Kings Mt Comment
  JROH3841  Populus trichocarpa John H. Thomas 1976-4-30 18099 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Dam. Comment
  JROH3358  Portulaca oleracea John H. Thomas 1976-10-16 18404 San Mateo Jasper Ridge Biological Preserve, Stanford University. Now dry delta in Searsville Lake at the mouth of Corte de Madera Creek Comment
  RSA800120  Potamogeton illinoensis Peter Rubtzoff 1965-10-19 5664 San Mateo Pilarcitos Lake. Comment
  UC279591  Potamogeton nodosus W. A. Setchell, C. B. Setchell, H. E. Parks 1925-8-29 San Mateo Comment
  UC430  Potamogeton pectinatus J. Burtt Davy Jun 21 1893-Jun 23 1893 1131 San Mateo Pilarcitos Lake and Canyon Pilarcitos Lake Comment
  CAS-BOT-BC453997  Potamogeton pectinatus Charles W. O'Brien 1964-8-31 s.n. San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC453999  Potamogeton pectinatus M. S. Taylor; E. Pierce 1978-7-31 1875 San Mateo Ano Nuevo State Reserve, between Hwy 1 and the Pacific Ocean, n of Santa Cruz. Comment
  CAS-BOT-BC454002  Potamogeton pectinatus W. R. Dudley 1909-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula. E. twin-pond near Mussel Rock. Comment
  SEINET11916088  Potentilla anserina Unknown 1930-1 9004 San Mateo Half Moon Bay Comment
  CAS-BOT-BC141936  Potentilla anserina subsp. pacifica J. H. Thomas 1949-6-4 590 San Mateo Along coast, 1.4 miles S. of road to Pescadero Comment
  UC1321460  Potentilla anserina subsp. pacifica Arne Henrik Rousi 9 San Mateo Comment
  JEPS44265  Potentilla hickmanii K. Brandegee 1905-6-20 San Mateo Moss Beach , Moss Beach (Halfmoon Bay) Comment
  JROH4667  Prosartes hookeri W. R. Dudley 1898-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4669  Prosartes hookeri John H. Thomas 1967-4-28 12728 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC516351  Prosartes hookeri M. N. Paulson 1915-4-1 s.n. San Mateo Kings Mountain Comment
  CAS-BOT-BC517395  Prosartes smithii H. L. Mason 1917-4-1 s.n. San Mateo Kings Mountain Comment
  RSA18295  Prunella vulgaris var. lanceolata Carl B. Wolf 1927-6-21 422 San Mateo East slope of Kings Mt. Comment
  RSA217975  Prunella vulgaris var. lanceolata Phillip Wheeler 1965-6-20 s.n. San Mateo Adjacent to Radio Road Comment
  CAS-BOT-BC158173  Prunus emarginata Peter H. Raven 1950-4-16 1810 San Mateo Above [Visitation] Visitacion Valley, San Bruno Mts. 182 Comment
  CAS-BOT-BC158174  Prunus emarginata Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Buckeye Canyon Comment
  CAS-BOT-BC154500  Prunus ilicifolia J. H. Thomas 1954-5-28 4239 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  RSA454145  Prunus ilicifolia L. M. Booth 1932-10-29 2119 San Mateo San Bruno Mountain. 61 Comment
  UC1128422  Prunus ilicifolia A. Wright 1928-9-16 San Mateo San Andreas Lake 152 Comment
  CAS-BOT-BC154652  Prunus subcordata Adoph Holme 1929-4-1 s.n. San Mateo Berenda Farm near Redwood City Comment
  JEPS49085  Pseudognaphalium beneolens Lewis S. Rose 1966-8-15 66082 San Mateo w of Redwood City; Emerald Lake 91 Comment
  CAS-BOT-BC356473  Pseudognaphalium beneolens Roxana S. Ferris 1920-9-3 2052 San Mateo Santa Cruz Mountain Peninsula. Near upper Mud Lake, Coal Mine ridge Comment
  CAS-BOT-BC356474  Pseudognaphalium beneolens Helen D. Geis 1901-9-26 s.n. San Mateo Roadside to Spanishtown [Spanish Town] Comment
  CAS-BOT-BC356855  Pseudognaphalium californicum George Oberlander 1949-8-20 361 San Mateo San Francisco Watershed Reserve. Sweeney Ridge Comment
  CAS-BOT-BC356863  Pseudognaphalium californicum Elizabeth McClintock 1972-5-10 s.n. San Mateo San Bruno Mountain. Slope above parking lot, summit of mountain Comment
  CAS-BOT-BC356864  Pseudognaphalium californicum Philip C. Wheeler 1965-5-8 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  RSA191946  Pseudognaphalium californicum R. F. Thorne, Percy C. Everett 1963-6-9 32231 San Mateo On top of San Bruno Mountain. 335 Comment
  SJSU16004  Pseudognaphalium luteoalbum John Rawlings, Ken Hickman 2016-7-21 1950 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-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
  CAS-BOT-BC357126  Pseudognaphalium luteoalbum Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  CAS-BOT-BC357131  Pseudognaphalium luteoalbum Lewis S. Rose 1936-2-12 36005 San Mateo Burlingame 91 Comment
  SBBG45073  Pseudognaphalium luteoalbum L. S. Rose 1936-2-12 San Mateo Burlingame 91 Comment
  SD61039  Pseudognaphalium microcephalum Darley F. Howe 1964-8-13 3958 San Mateo Near ocan on Highway 1. Comment
  CAS-BOT-BC357508  Pseudognaphalium ramosissimum Janet Jones 1978-8-28 s.n. San Mateo Near Montara Comment
  CAS-BOT-BC344869  Pseudognaphalium stramineum Peter Rubtzoff 1975-11-8 8438 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC361562  Pseudognaphalium stramineum Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  CAS-BOT-BC85905  Pseudotsuga menziesii Josephine D. Randall 1906-3-9 275 San Mateo Santa Cruz Peninsula, King's Mt. Comment
  CAS-BOT-BC85914  Pseudotsuga menziesii Miss O. Boring 1897-8-31 s.n. San Mateo Santa Cruz Peninsula, King's Mt. Comment
  CAS-BOT-BC362032  Psilocarphus tenellus H. A. Dutton 1900-3-25 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  JROH1177  Psilocarphus tenellus John H. Thomas 1956-4-7 5611 A San Mateo Jasper Ridge Biological Preserve, Stanford University; open serpentine area on top of ridge and adjacent slopes Comment
  JROH1179  Psilocarphus tenellus John H. Thomas 1963-5-12 10087 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1196  Psilocarphus tenellus John Hunter Thomas 1992-4-23 25146 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH17  Pteridium aquilinum var. pubescens John Hunter Thomas 1985-5-22 23677 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  SD39954  Pteridium aquilinum var. pubescens Edith A. Purer 1933-7-27 5363 San Mateo Pigeon Point Comment
  CAS-BOT-BC421317  Pterostegia drymarioides John H. Thomas 1965-4-29 10625 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC421319  Pterostegia drymarioides Margaret A. Barry 1937-5-15 121 San Mateo On Coal Mine Ridge Comment
  JEPS8435  Pterostegia drymarioides unknown 1925-5-28 11 San Mateo Salada Comment
  CAS-BOT-BC421320  Pterostegia drymarioides W. Knight; I. Knight 1965-6-20 s.n. San Mateo San Bruno Mountain. Crystal Cave Canyon Comment
  UCD18553  Puccinellia lemmonii Roman Gankin 1950-7-15 27 San Mateo city of Menlo Park, Hermosa Way, along roadside. 30 Comment
  JROH3753  Pyracantha fortuneana J. H. Thomas 1960-6-8 8773 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near entrance to Searsville Lake Comment
  SEINET8229663  Pyrola aphylla A. D. E. Elmer 1903-1 4297 San Mateo Pescadero. Comment
  CAS-BOT-BC104277  Quercus X morehus W. R. Dudley 1904-4-10 s.n. San Mateo Santa Cruz Mountain Peninsula, Goat Ranch Road near Alpine Road - Black Mt. Comment
  CAS-BOT-BC104279  Quercus X morehus James B. Roof 1965-4-25 s.n. San Mateo Sant Bruno Mountain, On top of ridge, N side of road, toward Brisbane power lines Comment
  CAS-BOT-BC61707  Quercus agrifolia Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Buckeye Canyon, near ridge, San Bruno Mountain Comment
  CAS-BOT-BC61711  Quercus agrifolia George Oberlander 1949-10-8 397 San Mateo Sawyer Ridge Comment
  HSC8087  Quercus agrifolia L. S. Rose 1964-3-23 64012 San Mateo Emerald Lake, W of Redwood City 122 Comment
  SJSU10132  Quercus agrifolia A. W. Jacobs 1936-12-18 San Mateo Jasper Ridge Comment
  UCD45079  Quercus agrifolia Jonh M. Tucker 1994-9-9 s.n. San Mateo Tree ca. 40 ft. tall. Huddart Park on NE factoring slope nr. Miwok Shelter. Ca. 1200 ft. elev. San Mateo County 365 Comment
  SEINET13953029 Image available Quercus agrifolia Lewis S. Rose 1964-1 64012 San Mateo Emerald Lake, west of Redwood City hills, 400 feet in altitude 122 Comment
  SEINET9326838  Quercus agrifolia Unknown 1938-11-6 San Mateo Woodside, hill slopes. Comment
  CAS-BOT-BC62307  Quercus chrysolepis Stkinson 1902-11-30 s.n. San Mateo Santa Cruz Mountain Peninsula, King's Mt. Comment
  JROH2533  Quercus dumosa var. bullata Le Roy Abrams 1904-5-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1135557  Quercus durata G. E. Sindel 1935-8-27 338 San Mateo 3.37 mi wnw Woodside; Santa Cruz Quad. 152 Comment
  JROH2479  Quercus durata var. durata Arthur Spiegler 1952-5-10 87 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC105398  Quercus kelloggii Ira L. Wiggins 1925-4-1 1664 San Mateo On Kings Mountain Road three fourths of a mile above Woodside in the old cut over redwood (S. sempervirens) belt. Comment
  JROH2496  Quercus kelloggii A. D. E. Elmer 1903-5-1 4520 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  JROH2507  Quercus kelloggii John Hunter Thomas 1981-4-27 20501 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2509  Quercus kelloggii John Hunter Thomas 1987-5-26 24323 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM270203  Quercus kelloggii Lyman Benson 1930-5-3 2116 San Mateo La Honda Grade, above Woodside, Santa Cruz mt. range, San Francisco Bay watershed. 457 Comment
  UC311547  Quercus kelloggii A. D. E. Elmer May 1903 4520 San Mateo Searsville Lake Comment
  JROH2518  Quercus lobata John H. Thomas 1968-4-19 14299 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2521  Quercus lobata John H. Thomas 1977-4-28 18566 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC62890  Quercus lobata W. R. Dudley 1893-11-19 s.n. San Mateo By Alpine road up Black Mt. Comment
  CAS-BOT-BC134779  Quercus wislizeni John Thomas Howell 1971-4-12 47599 San Mateo Butano State Park Comment
  CAS-BOT-BC134791  Quercus wislizeni Le Roy Abrams 1902-5-20 2439 San Mateo Kings Mountain Comment
  RSA187310  Ranunculus E. A. McGregor 1908-3-9 s.n. San Mateo Coal Mine Ridge Comment
  JROH3471  Ranunculus californicus John H. Thomas 1974-4-6 17090 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5899  Ranunculus californicus L. Nordby 1982-4-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab. 178 Comment
  RSA399414  Ranunculus californicus L. S. Rose 1935-4-16 35097 San Mateo Emerald Lake, W of Redwood City Comment
  UC277217  Ranunculus californicus H. M. Hall 1923-2-20 11844 a San Mateo Pigeon Point; 3.4 mi s of L.H., near the sea Comment
  UC511335  Ranunculus californicus Lyman Benson 1931-3-15 2642 San Mateo Emerald Lake San Francisco Bay Watershed, Santa Cruz Mt. Range, Redwood C 152 Comment
  POM268178  Ranunculus californicus Lyman Benson 1930-5-3 2101 San Mateo Santa Cruz Mt. 244 Comment
  POM268421  Ranunculus californicus Lyman Benson 1930-3-20 1953 San Mateo S San Francisco. 91 Comment
  RSA40296  Ranunculus californicus L. S. Rose 1947-4-14 47094 San Mateo Skyline Blvd, E of Sharps Park. 152 Comment
  CAS-BOT-BC378524  Ranunculus californicus var. californicus Margaret A. Barry 1937-5-8 56 San Mateo grassland on Coal Mine Ridge Comment
  CAS-BOT-BC378532  Ranunculus californicus var. californicus Elizabeth McClintock; Virginia Ryder 1964-2-16 s.n. San Mateo San Bruno Mountain, low growing on grassy slope above parking lot at top of mountain Comment
  CAS-BOT-BC378540  Ranunculus californicus var. californicus Ned Cahill 1974-4-23 165 San Mateo serpentine fields bordered by chaparral, near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  POM268184  Ranunculus californicus var. cuneatus Lyman Benson 1935-3-10 6257 San Mateo Menlo Park. San Franciso Bay. 30 Comment
  JROH3484  Ranunculus hebecarpus John Hunter Thomas 1981-4-21 20457 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3482  Ranunculus hebecarpus John H. Thomas 1976-4-19 18083 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail in oakwoodland near dam. Comment
  JROH3493  Ranunculus hebecarpus John Hunter Thomas 1991-4-11 24986 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grassy area near Rattlesnake Rocks Comment
  CAS-BOT-BC83422  Ranunculus lobbii E. A. McGregor 1908-3-9 s.n. San Mateo Coal Mine Ridge. Comment
  POM269869  Ranunculus lobbii James I. McMurphy 1906-5-8 s.n. San Mateo Near head of Crystal Springs Lakes Comment
  POM269264  Ranunculus muricatus Lyman Benson 1935-5-7 6546 San Mateo Santa Cruz Mt, San Francisco Bay, Stanford University 152 Comment
  UCD97310  Ranunculus trilobus Phil Greer 2002-4-17 s.n. San Mateo Hwy 101, in Half Moon Bay. Comment
  JROH3501  Ranunculus uncinatus John Rawlings 2013-4-16 1144 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 1. 79 Comment
  CAS-BOT-BC55889  Rhamnus crocea R. Hoffough 1929-5-8 793 San Mateo Los Altos Hills Comment
  CAS-BOT-BC56665  Rhododendron occidentale William R. Dudley 1895-6-6 s.n. San Mateo Pescadero Cr. (near Iverson's) Comment
  CAS-BOT-BC56668  Rhododendron occidentale A. D. E. Elmer 1903-6-1 4298 San Mateo Butano Creek Comment
  CAS-BOT-BC92490  Ribes aureum var. gracillimum A. D. E. Elmer 1903-5-1 4514 San Mateo Portola. Comment
  JROH2633  Ribes aureum var. gracillimum Carol Zabel 1989-8-7 22 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 12 at bridge nearest Mapache Gate. Comment
  POM202466  Ribes californicum L. S. Rose 1933-6-9 33226 San Mateo Belmont Comment
  POM274752  Ribes californicum Lyman Benson 1928-4-21 736 San Mateo North base of Searsville ridge; among redwoods. Stanfornd University. Santa Cruz mtn ranges. San Francisquito Cr. 91 Comment
  RSA124767  Ribes californicum John H. Thomas 1959-2-23 7518 San Mateo Jasper Ridge, about 5 mi SW of Palo Alto. 152 Comment
  RSA3921  Ribes californicum James I. McMurphy 1906-5-11 57 San Mateo San Francisquito Cr. Stanford University. Comment
  UC11496  Ribes californicum Alice Eastwood April 1896 San Mateo Crystal Springs Comment
  UC518033  Ribes californicum Lewis S. Rose 1933-6-9 33226 San Mateo Belmont Comment
  CAS-BOT-BC93001  Ribes californicum var. californicum Walter Knight; Irja Knight 1965-3-21 963 San Mateo San Bruno Mountain. Near road at summit at head of Buckeye Canyon. Comment
  CAS-BOT-BC93002  Ribes californicum var. californicum A. D. E. Elmer 1903-3-1 4683 San Mateo Portola. Comment
  JROH2649  Ribes californicum var. californicum John Hunter Thomas 1983-2-21 21280 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Escobar Gate Comment
  SD121787  Ribes divaricatum Lewis S. Rose 1965-3-16 65008 San Mateo Searsville Lake 121 Comment
  SBBG33476  Ribes malvaceum A. D. E. Elmer -Mar-1903 4750 San Mateo Portola Comment
  RSA0021677  Ribes malvaceum G. Oberlander 1949-2-2 5 San Mateo Crest of Sweeney Ridge, San Francisco Watershed Reserve. Comment
  CAS-BOT-BC212835  Ribes menziesii J. H. Thomas 1962-3-24 9839 San Mateo Isenberg Ranch near Langley Hill. 548 Comment
  CAS-BOT-BC212841  Ribes menziesii J. H. Thomas 1949-3-29 188 San Mateo King's Mountain Comment
  UC11613  Ribes menziesii J. Burtt Davy 1895-4-21 1059 San Mateo Pilarcitos Creek Comment
  SEINET12220270  Ribes menziesii Unknown 1932-1 8946 San Mateo Los Francos Woods Comment
  JROH2678  Ribes sanguineum var. glutinosum John Hunter Thomas 1977-6-16 18792 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along raised causeway. 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
  RSA0019106  Ribes sanguineum var. glutinosum Josephine Randall 1907-3-9 s.n. San Mateo Kings Mountain. Santa Cruz Peninsula. Comment
  RSA0019114  Ribes sanguineum var. glutinosum A. D. E. Elmer 1903-03 4470 San Mateo Portola Comment
  CAS-BOT-BC363094  Rigiopappus leptocladus Le Roy Abrams 1902-5-4 2401 San Mateo Woodside Comment
  CAS-BOT-BC363093  Rigiopappus leptocladus Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  JROH1205  Rigiopappus leptocladus John Hunter Thomas 1982-5-9 20925 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2208  Robinia pseudoacacia Ann Lambrecht 2007-9-5 32 San Mateo Jasper Ridge Biological Preserve, Stanford University; W bank of San Francisquito Creek, just downstream from confluence with Bear Creek Comment
  CAS-BOT-BC341025  Robinia pseudoacacia L. R. Abrams 1921-5-3 s.n. San Mateo Prop. Tallocks garden, Stanford University Comment
  RSA119752  Romanzoffia californica W. R. Dudley 1909-4-27 s.n. San Mateo On Pulpit Rock, San Mateo Canyon; Santa Cruz Mt Peninsula. Comment
  UC1736041  Romulea rosea var. australis Dean W. Taylor 1995-3-14 14751 San Mateo Buri Buri Ridge; west of Hillsborough; west of Skyline Blvd.; San Francisco Fish & Game Refuge, San Francisco Water Department lands 152 Comment
  JROH1583  Rorippa palustris subsp. palustris John Hunter Thomas 1979-9-9 19712 San Mateo Jasper Ridge Biological Preserve, Stanford University; on dam Comment
  CAS-BOT-BC389669  Rosa californica M. Wicksten 1969-6-24 s.n. San Mateo Huddart Park, Miwok area Comment
  CAS-BOT-BC146695  Rosa gymnocarpa Delzie Demaree 1933-6-23 10386 San Mateo White House Canyon Comment
  CAS-BOT-BC146698  Rosa gymnocarpa W. R. Dudley 1906-5-8 65 San Mateo Near Crystal Springs Lake, Santa Cruz Mts. 91 Comment
  CAS-BOT-BC146702  Rosa gymnocarpa J. H. Thomas 1950-4-27 1691 San Mateo Purisima Road near Skyline Blvd. Comment
  CAS-BOT-BC156647  Rubus bifrons Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo Off Guadalupe Road Comment
  CAS-BOT-BC152832  Rubus parviflorus Josephine D. Randall 1907-7-28 345 San Mateo Iverson's near Peter's Creek - Santa Cruz Peninsula Comment
  UCR51532  Rubus spectabilis var. franciscanus R. Ascanio 1988-4-17 s.n. San Mateo E on Gazo Creek Road off Hwy 1, c. 2 mi. north of Ano Nuevo State Reserve 85 Comment
  CAS-BOT-BC157098  Rubus ursinus John Thomas Howell 1938-6-4 13889 San Mateo Burlingame Comment
  CAS-BOT-BC157108  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6055 San Mateo Near Pescadero Comment
  CAS-BOT-BC157112  Rubus ursinus Javier Penalosa 1963-2-23 2650 San Mateo San Bruno Mtn. Ravine south of Crocker Ave. 213 Comment
  JROH3777  Rubus ursinus W. R. Dudley 1898-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3779  Rubus ursinus John H. Thomas 1977-4-29 18574 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC157095  Rubus ursinus W. R. Dudley 1897-1-1 s.n. San Mateo Near junction of forks of Butano Cr. Comment
  UCSB17156  Rubus ursinus 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
  CAS-BOT-BC422088  Rumex acetosella E. McClintock; Phillip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. Top of ridge, east of Nike station. Comment
  CAS-BOT-BC421802  Rumex conglomeratus L. R. Abrams 1927-6-15 s.n. San Mateo South San Francisco Comment
  CAS-BOT-BC421818  Rumex conglomeratus John H. Thomas 1960-6-25 8792 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street. -7 Comment
  CAS-BOT-BC421571  Rumex crassus John H. Thomas 1963-5-20 10130 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  UC1101234  Rumex crispus Malcolm A. Nobs and S. Galen Smith 1949-8-25 1572 San Mateo s of Rockaway Beach Comment
  CAS-BOT-BC433545  Rumex fueginus W. R. Dudley 1902-9-21 s.n. San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  RSA176869  Rumex salicifolius var. crassus John H. Thomas 1964-6-19 10419 San Mateo Ano Nuevo Island, 1/2 mile off shore and 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC434132  Rumex transitorius Alice Eastwood; John Thomas Howell 1938-6-26 6061 San Mateo Near Pescadero Comment
  UCD164248  Rumex transitorius Peter Rubtzoff 1979-7-26 9299 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH2217  Rupertia physodes John H. Thomas 1977-4-19 18534 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2219  Rupertia physodes John Hunter Thomas 1980-5-6 19922 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC311105  Rupertia physodes A. D. E. Elmer June, 1903 4270 San Mateo Crystal Springs Lake Comment
  UC279598  Ruppia maritima W. A. Setchell San Mateo Laguna de Salada Comment
  CAS-BOT-BC454178  Ruppia maritima Ira L. Wiggins 1946-4-30 11199 San Mateo On west side of Bayshore Highway 1/2 mile north of Redwood City. 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
  CAS-BOT-BC239847  Rytidosperma penicillatum Bert Johnson 1989-3-17 s.n. San Mateo San Bruno Mountains. Randolph Ravine Comment
  JROH5558  Sagina apetala John Rawlings 2013-4-19 1155 San Mateo Jasper Ridge Biological Preserve, Stanford University; verge south side of Trail 11 in a level section in chaparral 144 Comment
  SEINET11941059  Salicornia depressa Unknown 1933-1 10460 San Mateo Shanty Town, near Belmont, San Fransisco Bay Comment
  UC1191409  Salicornia europaea Herbert L. Mason and Malcolm A. Nobs 1948-12-11 713 San Mateo Highway 101, near shore of bay, at Whipple Avenue intersection, Redwood City Redwood City Comment
  JROH3853  Salix exigua var. hindsiana Toni Corelli 2003-2-6 254 San Mateo Jasper Ridge Biological Preserve, Stanford University; old beach area below Searsville Lab 103 Comment
  UC492364  Salix lasiandra subsp. lasiandra Mrs. H. P. Bracelin 1932-7-4 640 San Mateo 4/10 mi e. Pescadero (Butano Creek Rd.) Comment
  CAS-BOT-BC125380  Salix lasiandra var. lasiandra J. Ed. McClellan; Bonnie McClellan 1976-4-1 s.n. San Mateo Princeton Comment
  CAS-BOT-BC107131  Salix lasiolepis C. R. Ball; G. W. Hendry 1931-2-22 14 San Mateo San Gregorio, near sea level - in arroyo near San Gregorio Creek, 100 m. from ocean Comment
  POM161137  Salix lasiolepis L. R. Abrams 1915-3-13 5164 San Mateo Near jct of San Francisquito and Los Trancos creeks. About 2 miles from Stanford University. Comment
  POM281343  Salix lasiolepis Lyman D. Benson 1931-1-25 2577 San Mateo Near the Skyline Blvd. 5 miles S of La Honda Grade. 366 Comment
  SEINET12003303  Salix lasiolepis L. S. Rose 1938-1 38302 San Mateo San Francisco, Mountain Lake, Presidio 30 Comment
  CAS-BOT-BC108256  Salix lasiolepis var. bigelovii Peter H. Raven 1964-9-13 19673 San Mateo San Gregorio Comment
  CAS-BOT-BC108260  Salix lasiolepis var. bigelovii C. R. Ball; G. W. Hendry 1931-2-22 15 San Mateo In arroyo near San Gregoio Creek, 100 m. from ocean. Near sea level. Comment
  CAS-BOT-BC124486  Salix lasiolepis var. lasiolepis W. R. Dudley 1902-5-1 s.n. San Mateo Near Iverson's, Peter's Creek Comment
  UC846970  Salix scouleriana Lewis S. Rose 1938-10-16 38303 San Mateo Skyline Blvd. and La Honda Rd. Comment
  CAS-BOT-BC126495  Salix sitchensis Phillip Wheeler 1966-10-16 s.n. San Mateo Crocker Industrial Park Comment
  CAS-BOT-BC126498  Salix sitchensis W. R. Dudley 1903-5-1 s.n. San Mateo From Peters Creek above Iverson's to old mill Comment
  CAS-BOT-BC126518  Salix sitchensis George Oberlander 1950-3-11 820 San Mateo San Mateo Creek Comment
  POM167784  Salix sitchensis C. F. Baker 1902-3-18 390 San Mateo King's Mountain Comment
  RSA201244  Salsola soda W. Anderson 1968-8-16 s.n. San Mateo Edge of salt marsh just above high tide line, west end of Dumbarton Bridge Comment
  CAS-BOT-BC176912  Salsola tragus Phillip C. Wheeler 1965-6-19 s.n. San Mateo Brisbane Lagoon Comment
  RSA51285  Salvia spathacea Peter H. Raven 1950-4-16 1787 San Mateo Colma Canyon, San Bruno Mountains. 183 Comment
  UC416705  Salvia spathacea Franklin P. Nutting 1892-1 San Mateo Comment
  CAS-BOT-BC235037  Sambucus Roxana S. Ferris 1920-3-8 1765 San Mateo Frenchmans Creek near Ocean Comment
  POM284212  Sambucus caerulea Lyman Benson 1933-6-14 4447 San Mateo Menlo Park 61 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
  JROH1675  Sambucus nigra subsp. caerulea John Hunter Thomas 1985-5-22 23669 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC236455  Sambucus racemosa subsp. racemosa James B. Roof 1966-3-27 s.n. San Mateo Power Line Ridge, San Bruno Mountain Comment
  CAS-BOT-BC236463  Sambucus racemosa subsp. racemosa George Oberlander 1949-5-21 188 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve Comment
  CAS-BOT-BC236464  Sambucus racemosa subsp. racemosa Adaline Christensen 1956-5-1 s.n. San Mateo Half Moon Bay Comment
  UC204057  Sambucus racemosa var. racemosa A. D. E. Elmer May, 1903 4663 San Mateo Butano Creek Comment
Read comments
Sep 6 2011
  JEPS189  Sanicula arctopoides Mrs. Inez Ray Smith 1915-3-1 San Mateo Burlingame Comment
  SEINET13945102 Image available Sanicula arctopoides Lewis S. Rose 1965-1 65012 San Mateo San Bruno Mts, N end. Ca 400 ft 122 Comment
  SEINET6205025  Sanicula arctopoides L. S. Rose 1965-1 65012 San Mateo San Bruno Mts, N end. Comment
  UC1598748  Sanicula arctopoides Ivar Tidestrom 1894-3-22 San Mateo Comment
  POM287958  Sanicula bipinnata Lyman Benson 1930-3-31 2026 San Mateo Stanford University, San Lorenzo Range. 122 Comment
  JROH325  Sanicula bipinnatifida John Hunter Thomas 1977-4-28 18561 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA40105  Sanicula bipinnatifida L. S. Rose 1948-3-31 48033 San Mateo Skyline Blvd. above San Andreas Lake. 152 Comment
  JROH331  Sanicula crassicaulis John H. Thomas 1967-5-12 12877 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH337  Sanicula crassicaulis John H. Thomas 1974-5-3 17243 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH345  Sanicula crassicaulis John Hunter Thomas 1987-5-15 24287 San Mateo Jasper Ridge Biological Preserve, Stanford University; near picnic area Comment
  RSA185818  Sanicula crassicaulis John H. Thomas 1958-3-19 7066 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 30 Comment
  UCR121545  Sanicula crassicaulis George K. Helmkamp, E. A. Helmkamp 1999-6-28 4963 San Mateo Coast Range; Santa Cruz Mtns, Sky Londa; junction of Calif. Hwy 84 and Calif. Hwy 35, 5 mi south of central Redwood City 457 Comment
  RSA445295  Satureja douglasii H. F. Copeland 1929-7-4 1231 San Mateo La Honda Grade. Comment
  UC11756  Saxifraga californica Ivar Tidestrom 1894-3-22 San Mateo Comment
  RSA187287  Scandix pecten-veneris John H. Thomas 1964-4-19 10314 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto Comment
  JROH363  Scandix pecten-veneris John Hunter Thomas 1987-4-30 24217 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA790257  Schedonorus arundinaceus Peter Rubtzoff 1976-6-13 8632 San Mateo San Bruno Mtn: 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction and NW of Fog Forest. Comment
  CAS-BOT-BC283133  Schedonorus arundinaceus Elizabeth McClintock; Paul Reeberg 1988-4-26 s.n. San Mateo On the south side of Crocker Industrial Park, San Bruno Mountains 22 Comment
  CAS-BOT-BC111414  Schoenoplectus acutus var. occidentalis Elizabeth McClintock; P. Reeberg 1989-8-19 s.n. San Mateo P. G. & E. Marsh, San Bruno Mountains. Comment
  CAS-BOT-BC227874  Schoenoplectus acutus var. occidentalis Peter Rubtzoff; Elizabeth McClintock; Paul Reeberg 1989-6-3 s.n. San Mateo San Bruno Mountains. PG&E Marsh 4 Comment
  RSA365994  Schoenoplectus pungens Edith A. Purer 1933-7-27 s.n. San Mateo 2 miles south of Pigeon Point. Comment
  SD37482  Schoenoplectus pungens var. badius Edith A. Purer 1933-7-27 5391 San Mateo Moist place in the sand dunes, 2 miles south of Pigeon Point. Comment
  JEPS85228  Scirpus koilolepis Roy E. Buck and James A. West 1985-4-29 526 San Mateo 1.9 air km. e.-n.e. Franklin Point (ca. 0.8 air km. n.e. of Whitehouse Canyon Rd.-CA Hwy. 1 jct, just n. of Whitehouse Canyon Rd., shallow watercourse at head of minor gulch); Cascade Ranch 60 Comment
  JROH4425  Scirpus microcarpus John Rawlings, Carol Zabel 2006-5-8 0905 San Mateo Jasper Ridge Biological Preserve, Stanford University. Off east end of Leonard's Bridge, Trail 13, lakeside of bridge. 106 Comment
  UC1100838  Scirpus microcarpus Herbert L. Mason, Verne Grant 1946-8-28 13093 San Mateo on Highway 5 one mi w of San Bruno between Santa Cruz and Daly City; w of San Bruno Comment
  JEPS62103  Scoliopus bigelovii Inez Smith Mar. 1915 San Mateo Hillsboro Comment
  POM169863  Scoliopus bigelovii A. D. E. Elmer 1903-03 4559 San Mateo Kings Mountain Comment
  SEINET926250  Scoliopus bigelovii A. D. E. Elmer 1903-1 4559 San Mateo King's mountain. Comment
  CAS-BOT-BC519000  Scoliopus bigelovii J. H. Thomas 1949-3-29 194 San Mateo Kings Mountain Comment
  CAS-BOT-BC519011  Scoliopus bigelovii John Thomas Howell 1924-2-23 265 San Mateo King Mountain Comment
  SEINET12050509  Scoliopus bigelovii F. H. Utech 1988-1 88 -040 San Mateo 2.6 mi from junction of Kings Mt. Road & CA 35 on former enroute to Woodside 350 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
  JROH5459  Scribneria bolanderi John H. Thomas 1980-5-1 19912 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road D Comment
  JROH4121  Scrophularia californica W. R. Dudley 1895-7-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  JROH4128  Scrophularia californica John Hunter Thomas 1977-6-16 18747 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM128330  Scrophularia californica R. L. Pendleton 1907-4-20 602 San Mateo Lake Merced. 30 Comment
  CHSC57003  Scrophularia californica subsp. californica Steven Triano 1988-5-24 179 San Mateo Along w side of Old La Honda Road ca 0.8 mi s of Portola Road and 4.0 mi s of Woodside. 201 Comment
  UCR121556  Scrophularia californica subsp. californica George K. Helmkamp, E. A. Helmkamp 1999-6-28 4980 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  JROH2884  Scutellaria tuberosa John H. Thomas 1961-4-28 9175 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  SBBG33418  Sedum spathulifolium A. D. E. Elmer -Jun-1903 4550 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC59270  Sedum spathulifolium W. R. Dudley 1894-4-1 s.n. San Mateo San Mateo Reservoir. Comment
  CAS-BOT-BC363397  Senecio aronicoides Fred Hemphill 1973-5-6 784 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC363390  Senecio aronicoides Catherine A. Toschi 1963-3-17 63 :62 San Mateo East slope San Bruno Mountains below radio station 213 Comment
  SJSU5433  Senecio aronicoides G. I. Tourtlotte 1968-5-5 San Mateo N end Sawyer Camp Rd near Crystal Springs Comment
  CAS-BOT-BC363737  Senecio hydrophilus George Oberlander 1950-5-28 994 San Mateo San Francisco Watershed Reserve. Upper Crystal Springs Lake Comment
  JROH688  Senecio minimus Toni Corelli 2008-9-3 351 San Mateo Jasper Ridge Biological Preserve, Stanford University. Bear Creek, northwest of junction of Road G and H 83 Comment
  CAS-BOT-BC80297  Sequoia sempervirens James McMurphy 1910-8-1 s.n. San Mateo San Francisquito Creek - Stone Crusher Comment
  CDA28813  Sequoia sempervirens D. G. Kelch 2009-6-9 9 .406 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
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Sep 21 2011
  HSC2616  Sequoia sempervirens P. A. Murphy 1965-4-16 41 San Mateo 6 mi. from Half Moon Bay in Hatch's Woods Comment
  CAS-BOT-BC85784  Sequoia sempervirens Atkinson 1901-1-27 s.n. San Mateo Santa Cruz Mountain Peninsula, near Preston's Place, Portola Valley Comment
  CDA2436  Setaria parviflora E. L. Labadie 1958-7-8 833 -58 San Mateo Redwood City. 0 Comment
  JROH5462  Setaria viridis John Hunter Thomas 1981-9-24 20748 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5464  Setaria viridis John Rawlings 2005-9-28 1008 San Mateo Jasper Ridge Biological Preserve, Stanford University. Corte Madera Creek. 110 Comment
  JROH3827  Sherardia arvensis John H. Thomas 1955-5-6 5018 A San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  CHSC57021  Sidalcea diploscypha Josephine Boyd 1988-5-5 San Mateo Ca 500 ft se of the twin topped peak located ca 0.4 mi e of the jct. between Hwy. 280 and Edgewood Road in Redwood City. 222 Comment
  UC583163  Sidalcea diploscypha Lewis S. Rose 1936-5-28 36300 San Mateo w Redwood City (Emerald Lake); , w of Redwood City 91 Comment
  UCD116803  Sidalcea malviflora Gerald W. Sodomka 1963-5-5 36 San Mateo Moss Beach. 30 Comment
  UCR231146  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 Kamchatka Point near the TV tower 335 Comment
  UC8421  Silene californica J. Burtt Davy Jun 21 1893-Jun 23 1893 1158 San Mateo Pilarcitos Lake and Canyon Comment
  JROH1734  Silene gallica John Hunter Thomas 1977-6-16 18756 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old racing oval Comment
  CAS-BOT-BC386851  Silene gallica Walter Knight; Irja Knight 1965-4-4 s.n. San Mateo San Bruno Mountain. Bitter Cherry Ravine. Comment
  JROH1732  Silene gallica John H. Thomas 1971-4-10 15757 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389195  Silene laciniata subsp. californica A. D. E. Elmer 1903-6-1 4446 San Mateo Crystal Springs Lake Comment
  JROH1725  Silene laciniata subsp. californica John H. Thomas 1962-7-15 9911 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS59180  Silybum marianum James G. Daly 1934-1 461 San Mateo San Gregorio watershed , San Gregorio watershed (Santa Cruz Mts.) Comment
  CAS-BOT-BC74990  Sinapis arvensis Fred Hemphill 1973-5-6 767 San Mateo San Carlos. North of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC75350  Sisymbrium officinale Reed C. Rollins 1941-2-23 2941 San Mateo Roadside, about 10 miles south of San Francisco. Comment
  CDA3853  Sisymbrium officinale W. Plummer 1971-7-9 San Mateo Dick Bulles property, Alpine Creek, Pescadero . 0 Comment
  CAS-BOT-BC75378  Sisymbrium orientale Walter Knight; Irja Knight 1965-4-11 s.n. San Mateo San Bruno Mountains. Guadalupe Road about 0.5 mile from Radio Road. Comment
  JEPS127795  Sisyrinchium bellum Adam C. Schneider with C. Matt Guilliams 2013-4-7 66 San Mateo Along dirt road running parallel to overhead power transmission lines. Comment
  SD227685  Sisyrinchium bellum G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3746 San Mateo Portola Valley: Golden Hills Rd along Los Trancos Creek. 106 Comment
  SEINET5571633  Sisyrinchium bellum H. S. Gentry 1931-1 6 San Mateo Collected 1.5 miles west of San Mateo, Half-moon Bay road. Comment
  UC1032495  Sisyrinchium californicum H. S. Yates 1935-3-8 5218 San Mateo 2 mi sw of Pescadero 60 Comment
  JROH4182  Solanum americanum John Hunter Thomas 1991-11-21 25102 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH6178  Solanum americanum John Rawlings 2017-10-3 2302 San Mateo Jasper Ridge Biological Preserve, Stanford University. Corte Madera Creek 111 Comment
  UCD165017  Solanum americanum Peter Rubtzoff 1974-12-17 7942 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  POM209654  Solanum douglasii D. D. Keck 1934-7-7 2970 San Mateo Ano Nuevo Point at Ano Nuevo Creek. Comment
  RSA152273  Solanum furcatum John H. Thomas 1961-5-7 9302 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  SEINET12315683  Solanum furcatum M. T. Doutt 1931-1 187 San Mateo Ano Nuevo Pt Comment
  CHSC57101  Solanum physalifolium var. nitidibaccatum Steven Triano 1988-5-24 214 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  UC563964  Solanum physalifolium var. nitidibaccatum Ira L. Wiggins 1935-8-24 8164 San Mateo 1/2 mi s of Moss Beach Comment
Read comments
Mar 12 2009
  CAS-BOT-BC157036  Solanum umbelliferum L. Abrams 1914-4-2 5073 San Mateo Woodside Comment
  JROH4184  Solanum umbelliferum Daniel Cohen 1953-4-11 22 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA295084  Solanum umbelliferum Robert A. Norris, John L. Inase 1981-1-18 4093 San Mateo Near Ano Nuevo Point. (near Santa Cruz Co. line) Comment
  UC676731  Solanum umbelliferum Reed C. Rollins 1941-3-16 2944 San Mateo about 6 mi w of Woodside (e slope of Kings Mountain); Santa Cruz Mountains, Kings Mountain Comment
  SEINET5571956  Solanum umbelliferum H. S. Gentry 1931-1 19 San Mateo Collected 1.5 miles W of San Mateo, Half-Moon Bay Road. Comment
  RSA473644  Solidago californica E. A. Purer 1933-8-25 5523 San Mateo Spring Valley. Comment
  CAS-BOT-BC365536  Solidago elongata Lewis S. Rose 1931-9-19 s.n. San Mateo Kings Mt. Comment
  UC473553  Solidago elongata Lewis B. Rose 1931-9-9 San Mateo Kings Mt. 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
  CAS-BOT-BC365188  Solidago velutina subsp. californica Irja Knight; Walter Knight 1963-10-7 333 San Mateo San Bruno Mountain. Cow Trough Ravine Comment
  HSC24021  Solidago velutina subsp. californica Mary Katherine Wicksten 1971-8-20 207 San Mateo Huddart Park; area by King's Mtn. Rd., above Miwok Area Comment
  JROH1254  Soliva sessilis John Hunter Thomas 1992-5-5 25212 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC374496  Sonchus asper Le Roy Abrams 1901-3-16 1144 San Mateo Woodside - Menlo Park Comment
  CAS-BOT-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
  POM292654  Sonchus oleraceus Lyman Benson 1928-12-15 837 San Mateo Lake Searsville, Stanford, Santa Cruz, San Francisco Bay 152 Comment
  CAS-BOT-BC235287  Sorghum bicolor J. H. Thomas 1959-11-19 8513 San Mateo Near Bayshore and University Avenue. East Palo Alto Comment
  CAS-BOT-BC236581  Sorghum halepense John H. Thomas 1968-10-6 14846 San Mateo Vicinity of railroad tracks and Dumbarton Bridge causeway entrance, east of Palo Alto Comment
  RSA177000  Sparganium erectum subsp. stoloniferum John H. Thomas 1964-6-3 10412 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  RSA17933  Sparganium erectum subsp. stoloniferum Carl B. Wolf, Le Roy Abrams 1927-6-10 s.n. San Mateo Searsville Lake. Comment
  SEINET10602935  Spartina foliosa Delzie Demaree 1933-9-17 Demaree 10528 San Mateo San Francisco Bay, Belmont Common along margins of salt marshes Comment
  CAS-BOT-BC390010  Spergula arvensis Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  JROH1750  Spergularia bocconi John H. Thomas 1967-5-12 12891 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC390209  Spergularia bocconi Alice Eastwood 1921-7-17 s.n. San Mateo Grenada Comment
  SEINET1877518 Image available Spergularia bocconi Tom Hensel 1973-7-10 278 -A San Mateo Pigeon Point lighthouse, 8.5 mi N of San Mateo-Santa Cruz Co. line. Comment
  CAS-BOT-BC390463  Spergularia macrotheca var. macrotheca Anne Constant 1955-5-28 197 San Mateo Top of bluff at Pescadero Beach 7 Comment
  CAS-BOT-BC390476  Spergularia macrotheca var. macrotheca Alice Eastwood 1937-7-25 18889 San Mateo Pebble Beach, Pescadero Comment
  CAS-BOT-BC390455  Spergularia macrotheca var. macrotheca J. H. Thomas 1949-6-4 584 San Mateo 1.4 miles S. of road leading to Pescadero Comment
  CAS-BOT-BC390464  Spergularia macrotheca var. macrotheca R. Bacigalupi 1941-10-22 2743 San Mateo Very close to the San Francisco-San Mateo County Line Comment
  CAS-BOT-BC390916  Spergularia marina John Thomas Howell 1924-9-28 666 San Mateo At the Leslie Salt Refinery Comment
  SD39424  Spiranthes romanzoffiana Edith A. Purer 1939-7-1 7928 C San Mateo Wet spot, snd dunes, Ano Nuevo Point. Comment
  RSA18263  Spiranthes romanzoffiana Carl B. Wolf 1927-6-27 460 San Mateo Los Troncos Creek, 2 mi back of Stanford University Comment
  SJSU15219  Stachys ajugoides Toni Corelli 2011-5-21 701 San Mateo Ano Nuevo State Park, Cascade Field 12 Comment
  SD38742  Stachys ajugoides var. ajugoides Edith A. Purer 1933-8-13 5425 San Mateo Santa Clara Valley, near Belmont. Comment
  CDA41030  Stachys albens Wm. Davis 1964-6-29 s.n. San Mateo Brown prop., San Bruno. 0 Comment
  CHSC52443  Stachys bullata Sandy Trimble 1987-4-13 19 San Mateo On s side of Hwy. 84, 8.1 mi w of Hwy 1and 7.2 mi e of Hwy 35. 335 Comment
  RSA116741  Stachys bullata Josephine Randall 1907-6-8 187 San Mateo Portola Valley. Santa Cruz Peninsula. Comment
  POM63312  Stachys bullata A. D. E. Elmer 1903-06 4417 San Mateo San Mateo Comment
  RSA116680  Stachys bullata Josephine Randall 1907-4-27 186 San Mateo Kings Mt. Road. Comment
  SEINET12343830  Stachys bullata L. S. Rose 1932-5-3 32215 San Mateo San Bruno 183 Comment
  UCD126015  Stachys bullata J. D. Skoss 1948-8-22 97 San Mateo San Vicente Canyon, near Montara. Comment
  UCSC011282  Stachys bullata Unknown 1972-5-20 s.n. San Mateo Waddell Creek area Comment
  SEINET10851465 Image available Stachys gracilenta A. Arthur Heller 1907-5-28 Heller 8574 San Mateo Above Crystal Springs on the Half Moon Bay road. Comment
  NY415794  Stachys quercetorum A. A. Heller 1907-5-28 8577 San Mateo Above Crystal Springs on the Half Moon Bay road Comment
  UCSB16391  Stachys rigida Schulte, John 1963-4-13 San Mateo Jasper Ridge; 3 mi SW of Stanford Campus; betweeen Santa Clara Valley and main front of Santa Cruz Mountains 137 Comment
  CAS-BOT-BC164650  Stachys rigida subsp. quercetorum Peter Rubtzoff 1975-10-11 8425 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  UCR279847  Stachys rigida subsp. quercetorum Peter Rubtzoff 1977-6-21 9063 San Mateo San Francisco Bay Region, San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  JROH2893  Stachys rigida var. quercetorum John H. Thomas 1974-4-19 17158 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Escobar gate Comment
  UCD164106  Stachys rigida var. quercetorum Peter Rubtzoff; Elizabeth McClintock, Barbara Deutsch 1978-6-4 9202 San Mateo San Bruno Mountain. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  CAS-BOT-BC374795  Stebbinsoseris heterocarpa K. L. Chambers 1952-5-20 414 San Mateo Ladera housing project, adjacent to Alpine Road, ca. 2 mi. s.w. of Stanford Univ. Comment
  JROH5560  Stellaria nitens John Rawlings 2013-4-19 1154 San Mateo Jasper Ridge Biological Preserve, Stanford University. South side of Trail 11 in a level section in chamise. 136 Comment
  CAS-BOT-BC375909  Stephanomeria virgata L. R. Abrams 1902-9-28 3002 San Mateo Sta [Santa] Cruz Mts Comment
  RSA128948  Stephanomeria virgata subsp. virgata J. T. Howell 1939-10-8 15369 San Mateo Pt San Pedro. Comment
  JROH5319  Stipa lepida Duncan M. Porter 1960-4-22 649 A San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of N-facing slope above Webb Ranch Comment
  SD175782  Stipa tenuissima L. Kuwahara 2006-6-1 1359399 San Mateo East side of Skyline Blvd., 0.75 mile south of State Highway 92. 359 Comment
  CAS-BOT-BC271643  Symphoricarpos albus var. laevigatus W. R. Dudley 1901-5-4 s.n. San Mateo Coal Mine Canyon near head Los Trancos Creek, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC271644  Symphoricarpos albus var. laevigatus George Oberlander 1950-3-18 590 San Mateo San Mateo Creek Comment
  JROH1683  Symphoricarpos albus var. laevigatus John Hunter Thomas 1980-5-1 19908 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5579326  Symphoricarpos mollis H. S. Gentry 1931-1 78 San Mateo 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC99086  Symphyotrichum chilense John H. Thomas 1965-11-26 11454 San Mateo At intersection of Tunitas Creek Road and Lobos Creek cutoff 121 Comment
  SD30757  Symphyotrichum chilense Edith A. Purer 1933-8-25 5521 San Mateo Spring Valley, along roadside Comment
  CAS-BOT-BC99091  Symphyotrichum chilense W. R. Dudley 1895-9-21 s.n. San Mateo Menlo Park - Santa Cruz Peninsula Comment
  CAS-BOT-BC99092  Symphyotrichum chilense W. R. Dudley 1895-9-21 s.n. San Mateo Menlo Park - Santa Cruz Peninsula Comment
  CAS-BOT-BC99096  Symphyotrichum chilense W. R. Dudley 1897-10-11 s.n. San Mateo Near Half Moon Bay (Spanishtown) Comment
  CAS-BOT-BC99388  Symphyotrichum subspicatum Gordon H. True 1936-6-14 507 San Mateo Canyon n. of Salada Beach Comment
  JEPS40839  Symphyotrichum subspicatum James G. Daly 1934-1-1 320 San Mateo San Gregorio watershed Santa Cruz Mts. Comment
  JEPS81901  Symphyotrichum subspicatum Roger Raiche 1982-9-6 20719 San Mateo Northeast slope Montara Mt. Montara Mt. 243 Comment
  UC1927817  Symphyotrichum subspicatum David Keil 1988-11-19 21201 San Mateo Highway 1, south of Half Moon Bay Comment
  CDA34524  Tamarix parviflora T. Hyland 2011-3-1 San Mateo CalTrans right of way 100 meters west of gate leading to Cascade Creek mouth. 0 Comment
  CAS-BOT-BC376710  Tanacetum bipinnatum Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  JROH1286  Taraxacum officinale John H. Thomas 1976-4-19 18084 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  RSA0036456  Taraxacum officinale Peter Rubtzoff 1977-4-14 8943 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction. East Fork Colma Creek canyon area at the NW corner of Fog Forest, San Bruno Mountains. Comment
  CHSC1159  Taraxia ovata M. Harless 1930-5-2 San Mateo Moss Beach. Comment
  JROH2999  Taraxia ovata James Newman 1951-4-21 7 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville 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
  JROH5751  Taraxia ovata L. Nordby 1982-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Searsville Lab on the west side of Searsville Lake. Comment
  JROH373  Tauschia kelloggii John H. Thomas 1963-3-20 10028 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of ridge Comment
  RSA210918  Taxus brevifolia John H. Thomas 1968-12-18 14866 San Mateo Oakland YMCA Camp near Loma Mar, between Pescadero and La Honda Comment
  CAS-BOT-BC447476  Tellima grandiflora Philip C. Wheeler; Elizabeth McClintock 1967-6-11 s.n. San Mateo North facing brushy slope to south of new Guadalupe Parkway just before it meets Radio Road Comment
  CAS-BOT-BC447485  Tellima grandiflora Peter Rubtzoff 1953-5-14 1341 San Mateo Pilarcitas Creek canyon 1 to 2 miles downstream from Pilarcitas Lake Comment
  UCD39286  Tetragonia expansa B. Crampton 1962-6-11 6517 San Mateo Pacifica, Rockaway Beach, State Hwy. 1. Comment
  CAS-BOT-BC399840  Thalictrum polycarpum J. H. Thomas 1954-4-3 3835 San Mateo Pilarcitos Creek Road, 3.5 miles NE of Halfmoon [Half Moon] Bay 121 Comment
  CAS-BOT-BC399849  Thalictrum polycarpum Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo San Bruno Mountain Comment
  SEINET3153451  Thymus vulgaris Unknown 1870-4-10 sn San Mateo Mr. Saulmann's garden at San Mateo Comment
  CAS-BOT-BC66657  Thysanocarpus curvipes John H. Thomas 1967-4-28 12719 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JROH1615  Thysanocarpus curvipes John Hunter Thomas 1988-4-2 24358 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH1592  Thysanocarpus curvipes subsp. curvipes John Hunter Thomas 1981-4-4 20257 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC447581  Tiarella trifoliata var. unifoliata L. R. Abrams 1907-8-26 s.n. San Mateo Spring near King's 762 Comment
  JROH379  Torilis arvensis John Hunter Thomas 1990-7-4 24872 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH389  Torilis nodosa John Hunter Thomas 1983-4-28 21784 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS125912  Toxicoscordion fremontii var. minor Dean W. Taylor 2002-3-20 17953 San Mateo Franklin Point, coastal bluff, about 1 mile SE along the coast from actual point. Comment
  CHSC42204  Trientalis latifolia Rusti Gammon 1986-3-30 12 San Mateo Ca. 8.1 mi sw of Saratoga, 4.1 mi w off hwy 9. 569 Comment
  JROH3397  Trientalis latifolia John Hunter Thomas 1985-4-22 23542 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5897  Trientalis latifolia M. Ray 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail by San Francisquito Creek, near Redwoods Comment
  RSA116747  Trientalis latifolia Josephine Randall 1907-4-27 s.n. San Mateo KingsM Mt. Comment
  SEINET11974143  Trientalis latifolia Unknown 1932-1 8974 San Mateo Los Trancos Woods Comment
  UCSC010361  Trifolium Dylan M. Neubauer 2016-5-19 690 San Mateo (SnFrB) Santa Cruz Mountains, headwaters of Waterman Creek, w of Hwy 9 423 Comment
  UC33493  Trifolium albopurpureum var. dichotomum Mr. E. R. Drew April 1888 San Mateo San Pedro Ranch Comment
  JROH2236  Trifolium barbigerum K. Hoffaugh 1929-4-27 651 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2241  Trifolium barbigerum John H. Thomas 1974-4-25 17202 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge Comment
  POM88149  Trifolium barbigerum L. R. Abrams 1904-5-5 s.n. San Mateo Jasper Ridge near Stanford University. Comment
  JROH2248  Trifolium bifidum var. decipiens G. C. Kimber & Lucile Roush 1918-5-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2253  Trifolium bifidum var. decipiens John H. Thomas 1967-5-12 12879 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI12706  Trifolium bifidum var. decipiens Lewis S. Rose 1966-5-2 66035 San Mateo Emerald Lake, W of Redwood City 91 Comment
  UCSC005498  Trifolium bifidum var. decipiens Randall Morgan 1995-6-22 2795 San Mateo Ridge west of Waterman Creek Comment
  JROH2277  Trifolium dubium John H. Thomas 1977-5-18 18614 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2279  Trifolium dubium John Hunter Thomas 1978-4-25 19150 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS127790  Trifolium fucatum Adam C. Schneider with C. Matt Guilliams 2013-4-7 61 San Mateo Along dirt road running parallel to overhead power transmission lines. GPS coordinates approximate. Comment
  JROH2296  Trifolium fucatum John Hunter Thomas 1980-5-6 19924 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2306  Trifolium fucatum John Hunter Thomas 1989-5-9 24699 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC631607  Trifolium fucatum A. A. Heller 1907-5-23 8560 San Mateo back of San Mateo (on Half Moon Bay Rd) Comment
  JROH2313  Trifolium glomeratum Ann Lambrecht 2006-4-24 24 San Mateo Jasper Ridge Biological Preserve, Stanford University; roadside, N side of Road A, in old seven acre lease lot Comment
  RSA212223  Trifolium hirtum L. S. Rose 1970-4-23 7003 San Mateo Skyline Blvd., w. of San Mateo 122 Comment
  CAS-BOT-BC5351  Trifolium macraei Adolph Daniel Edward Elmer 1903-5-1 4812 San Mateo San Pedro Comment
  UCD111316  Trifolium macraei June McCaskill 1954-5-8 292 San Mateo Moss Beach. Comment
  JROH2338  Trifolium microcephalum John H. Thomas 1956-4-7 5607 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  POM126710  Trifolium microcephalum R. L. Pendleton 1907-4-20 611 San Mateo Lake Merced. 30 Comment
  POM20503  Trifolium microdon A. D. E. Elmer 1903-06 4628 San Mateo Portola. Comment
  JROH2346  Trifolium subterraneum John Hunter Thomas 1980-4-10 19873 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2362  Trifolium subterraneum John Hunter Thomas 1987-5-19 24299 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2357  Trifolium subterraneum John Hunter Thomas 1986-4-22 23974 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD78150  Trifolium tomentosum Robert E. Preston 2008-4-2 2602 San Mateo 1.1 mi SE of San Andreas Reservoir, at jct two dirt roads 107 Comment
  JROH2373  Trifolium variegatum John H. Thomas 1955-5-6 4999 San Mateo Jasper Ridge Biological Preserve, Stanford University; small draw on south side of ridge Comment
  JROH2385  Trifolium variegatum John H. Thomas 1975-4-19 17803 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2391  Trifolium variegatum John Hunter Thomas 1992-4-23 25155 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Indian grinding rock and along trail to redwoods Comment
  HSC100120  Trifolium willdenovii J. Wendell Howe 1930-4-11 San Mateo Menlo Park Comment
  SJSU656  Trifolium willdenovii A. W. Jacobs 1941-4-20 San Mateo Jasper Ridge above Searsville L Comment
  CDA28299  Trifolium willdenovii T. C. Fuller 1967-6-13 15942 San Mateo Half Moon Bay Harbor, north edge of the town of Half Moon Bay. 0 Comment
  JROH2408  Trifolium willdenovii John Hunter Thomas 1984-5-3 23332 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM278617  Trifolium willdenovii Lyman D. Benson 1930-5-1 2057 San Mateo Stanford Univ.; San Lorenzo mt. range. 122 Comment
  SBBG33496  Trifolium willdenovii A. D. E. Elmer -May-1903 San Mateo Belmont Comment
  CHSC39828  Trifolium wormskioldii Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  JROH4730  Trillium chloropetalum John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM170078  Trillium chloropetalum var. chloropetalum C. F. Baker 1902-3-30 431 San Mateo Crystal Springs Lake. Comment
  RSA3927  Trillium chloropetalum var. chloropetalum W. R. Dudley 1900-3-18 s.n. San Mateo Below San Andreas Dam. Comment
  CAS-BOT-BC521073  Trillium chloropetalum var. giganteum J. H. Thomas 1949-3-29 s.n. San Mateo King's Mountain Comment
  RSA378201  Trillium chloropetalum var. giganteum D. D. Keck 1932-3-6 1394 San Mateo La Honda road above Searsville Lake, Santa Cruz Mountains. Comment
  CAS-BOT-BC133436  Trillium ovatum Eric Walther 1920-5-9 s.n. San Mateo Woodside Comment
  POM169950  Trillium ovatum A. D. E. Elmer 1903-04 4752 San Mateo Portola. Comment
  CAS-BOT-BC238558  Triphysaria floribunda Alice Eastwood 1915-5-6 s.n. San Mateo Burlingame Comment
  UC1303092  Triphysaria floribunda Roxana S. Ferris and I. L. Wiggins 1932-4-7 8038 A San Mateo hills above Colma Comment
  OBI9367  Triphysaria versicolor subsp. faucibarbata Rimo Bacigalupi, G. T. Robbins 1954-6-18 4562 San Mateo Immed behind Point ano Nuevo Comment
  UC1073370  Triphysaria versicolor subsp. versicolor George B. Rossbach 1955-5-29 482 San Mateo Ano Nuevo Point Comment
  SBBG40480  Triphysaria versicolor subsp. versicolor W. J. Dress 1951-5-12 San Mateo 4.5 mi N of Pigeon Point Comment
  SEINET12053133  Triteleia hyacinthina Unknown 1933-1 San Mateo Portala Rd Comment
  CAS-BOT-BC523096  Triteleia ixioides subsp. ixioides Fred Hemphill 1973-5-6 783 San Mateo San Carlos, area north of Malabar Road and Melendy Drive 207 Comment
  CAS-BOT-BC526790  Triteleia laxa Josephine D. Randall 1907-6-8 235 San Mateo Santa Cruz Peninsula Comment
  IRVC9055  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
  CAS-BOT-BC74057  Turritis glabra Elizabeth McClintock; Arthur Menzies 1963-2-16 s.n. San Mateo San Bruno Mountain. Below top of mountain near radio station. Comment
  JROH5537  Typha angustifolia M. Whitley 1990-5-28 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By west edge of dam. Comment
  POM204316  Typha angustifolia I. L. Wiggins 1929-7-4 3803 San Mateo Marsh near Pescadero Beach. Comment
  POM282155  Typha angustifolia Lyman Benson 1931-5-16 2802 San Mateo San Mateo. 91 Comment
  JEPS87362 Image available Ulex europaeus Don Pendleton 1993-10-28 San Mateo 0.3 mi e San Bruno Mountain County Park Gatehouse (on Guadalupe Canyon Parkway); San Bruno Mountain County Park 300 Comment
  JEPS87363  Ulex europaeus Don Pendleton 1993-10-28 San Mateo 0.3 mi e San Bruno Mountain County Park Gatehouse (on Guadalupe Canyon Parkway); San Bruno Mountain County Park 300 Comment
  RSA625696  Ulex europaeus Don Pendleton 1993-11-20 s.n. San Mateo Daly City at 222 Hickey Boulevard Comment
  UCSB26557  Ulex europaeus Havlik, Neil 1969-3-27 San Mateo North side of San Bruno Mountain, near the junction of Radio Road and Guadalupe Road Comment
  SJSU8201  Ulmus parvifolia M. E. Schauss 1978-10-10 San Mateo Sunset Publishing Co, Willow Rd, Menlo Park Comment
  CAS-BOT-BC91227  Umbellularia californica Ned Cahill 1974-4-30 234 San Mateo Near the intersection of Canada and Edgewater roads, about 3 miles westward from Redwood City. Comment
  POM177516  Umbellularia californica Harry A. Dutton 1900-2-18 s.n. San Mateo Woodside. Comment
  RSA181986  Umbellularia californica W. L. Jepson 1922-3-19 9541 San Mateo Millbrae 183 Comment
  SEINET12102549  Umbellularia californica Unknown 1930-1 7306 San Mateo 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
  CAS-BOT-BC403973  Urtica dioica subsp. gracilis V. F. Hesse 1952-5-12 941 San Mateo Gazos Creek Canyon, about 4 miles from sea coast 45 Comment
  CAS-BOT-BC412533  Urtica urens J. H. Thomas 1961-5-6 9225 San Mateo About 1/4 mile west of center of Pescadero 15 Comment
  CAS-BOT-BC412534  Urtica urens John H. Thomas 1967-5-27 11638 San Mateo Menlo Park, near the Southern Pacific train station Comment
  JEPS27348  Vaccinium cespitosum Rimo Bacigalupi with L. R. Heckard and Jim Roof 1961-4-24 7609 San Mateo due n true summit of San Bruno Mt. (directly below and ne of KQED radio power station) 342 Comment
  CAS-BOT-BC199362  Vaccinium ovatum George Oberlander 1949-4-17 67 San Mateo Cahill Ridge Comment
  JEPS58746  Vaccinium ovatum A. D. E. Elmer Apr 1903 4561 San Mateo Kings Mountain Comment
  RSA681682  Vaccinium ovatum Annuschka Deb 1989-6-13 254 San Mateo Woodside. Comment
  RSA681683  Vaccinium ovatum Annuschka Deb 1989-3-17 50 San Mateo Woodside. Comment
  CAS-BOT-BC76137  Vancouveria planipetala A. D. E. Elmer 1903-5-1 4922 San Mateo On the Pescadero Creek, Iverson's Place. Comment
  CAS-BOT-BC76147  Vancouveria planipetala W. R. Dudley 1903-5-2 s.n. San Mateo Santa Cruz Peninsula. Pescadero Creek near Iverson's. Comment
  POM177507  Vancouveria planipetala W. R. Dudley 1895-6-6 s.n. San Mateo By road in Redwoods this side of Iverson s near Peter s Creek. Comment
  JROH4147  Verbascum thapsus John Hunter Thomas 1981-9-24 20746 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC24033  Verbena lasiostachys Mary Katherine Wicksten 1971-7-12 167 San Mateo Huddart Park, near Archery Flat, along King's Mtn. Rd. Comment
  JROH4268  Verbena lasiostachys var. lasiostachys John Hunter Thomas 1988-6-2 24506 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC450179  Verbena lasiostachys var. lasiostachys W. C. Blasdale 1893-6-23 San Mateo Pilarcitos Comment
  JROH4275  Verbena lasiostachys var. scabrida John H. Thomas 1973-6-15 16834 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4283  Verbena lasiostachys var. scabrida John Hunter Thomas 1986-6-7 24081 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC306773  Verbena lasiostachys var. scabrida A. D. E. Elmer July, 1903 4950 San Mateo Crystal Springs Lake Comment
  CDA6415  Veronica persica Wm. Davis 1958-1-13 20 -58 San Mateo Half Moon Bay. 0 Comment
  CAS-BOT-BC389667  Vicia americana Mark Nagumo 1966-4-23 s.n. San Mateo Right bank of road east of Crystal Springs Comment
  SEINET12157683  Vicia americana M. T. Doutt 1931-1 s.n. San Mateo Ano Nuevo Point Comment
  SEINET5578159  Vicia americana H. S. Gentry 1931-1 11 San Mateo 1.5 miles W of San Mateo, Half-Moon Bay road. Comment
  UC1084414  Vicia americana var. americana G. Thomas Robbins 1937-4-11 104 San Mateo near Redwood City Comment
  SEINET12157777  Vicia americana var. villosa M. T. Doutt 1931-1 183 San Mateo Pigeon Pt Comment
  CAS-BOT-BC173532  Vicia angustifolia Peter Rubtzoff 1977-6-21 9062 San Mateo Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction, upper part of East Fork Colma Creek Canyon Comment
  JEPS81152  Vicia benghalensis Edward Lee with H. L. Mason 1935-6-16 1527 San Mateo between Ano Nuevo and Franklin Point Comment
  SJSU2299  Vicia gigantea C. W. Sharsmith 1950-4-16 6628 San Mateo near Pescadero Point, near Pescadero Comment
  SD227823  Vicia sativa G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3749 San Mateo Portola Valley: Golden Hills Rd along Los Trancos Creek. 106 Comment
  JROH2436  Vicia sativa subsp. nigra John Hunter Thomas 1981-4-5 20267 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD164424  Vicia sativa subsp. nigra Peter Rubtzoff 1977-6-21 9062 San Mateo San Bruno Mounains. 'Saddle' area on N side of Guadalupe Canyon Parkway west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  JEPS127784  Vicia sativa subsp. sativa Adam C. Schneider with C. Matt Guilliams 2013-3-9 55 San Mateo Comment
  JROH2441  Vicia sativa subsp. sativa John H. Thomas 1973-3-12 16491 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR123142  Vicia tetrasperma George K. Helmkamp, E. A. Helmkamp 2001-6-2 6769 San Mateo Central Coast, Pillar Point Harbor, about 4 miles north of Half Moon Bay 6 Comment
  UC729850  Vicia villosa subsp. varia Carl B. Wolf 1929-5-27 3737 San Mateo back of Stanford University (Los Trancos Creek); Los Trancos Creek Comment
  CAS-BOT-BC264031  Viola adunca W. R. Dudley 1896-12-31 s.n. San Mateo Santa Cruz Mountain Peninsula. Between San Gregorio and Pescadero, near sea Comment
  CAS-BOT-BC264045  Viola adunca Miss E. Cannon 1899-4-21 s.n. San Mateo E of Colma Comment
  CAS-BOT-BC264048  Viola adunca John H. Thomas 1964-4-30 10354 San Mateo San Bruno Mountain in the N part of county 396 Comment
  CAS-BOT-BC264050  Viola adunca Roxana S. Ferris 1920-4-26 1978 San Mateo Road above Lagoon and mouth of Arroyo de Los Frijoles 30 Comment
  UC19283  Viola glabella J. Burtt Davy 1895-4-20 1056 San Mateo Pilarcitos Creek Comment
  CAS-BOT-BC536570  Viola glabella E. A. McGregor 1908-3-28 s.n. San Mateo Kings Mt. Comment
  CAS-BOT-BC536833  Viola glabella Roxana S. Ferris 1920-4-26 1961 San Mateo Santa Cruz Mountain Peninsula: near mouth of canon of Pescadero Crek 243 Comment
  CAS-BOT-BC536834  Viola glabella W. R. Dudley 1898-3-5 s.n. San Mateo Santa Cruz Mountain Peninsula: Kings Mountain Comment
  SEINET9251817  Viola glabella R. L. Oliver 1976-4-18 s.n. San Mateo La Honda, along HWY 84. Comment
  SD38904  Viola ocellata Edith A. Purer 1933-4-25 3645 San Mateo