Search Results — 2000 specimen records retrieved (1341 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
  CAS-BOT-BC383897  Abronia latifolia W. R. Dudley 1891-7-5 s.n. San Mateo Santa Cruz Mountain Peninsula. Pescadero Comment
  RSA0025759  Abronia latifolia C. F. Baker 1902-10-1 1741 San Mateo Pillar Point. Comment
  UCSC007714  Abronia latifolia Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC233752  Abronia umbellata C. F. Baker 1902-10-1 1742 San Mateo Pillar Point Comment
  CAS-BOT-BC451117  Acaena pinnatifida var. californica Le Roy Abrams 1901-5-1 1622 San Mateo Colma Comment
  CAS-BOT-BC451135  Acaena pinnatifida var. californica A. D. E. Elmer 1903-4-1 4823 San Mateo San Bruno Hills Comment
  UC186703  Acaena pinnatifida var. californica Michener and Bioletti May, 1892 San Mateo Cemeteries Comment
  CAS-BOT-BC219606  Acanthomintha duttonii D. K. Gillespie 1930-4-21 9220 San Mateo Emerald Lake near Redwood City Comment
  CAS-BOT-BC219610  Acanthomintha duttonii Lewis S. Rose 1933-5-17 33171 San Mateo Redwood City Comment
  UC1397619  Acanthomintha duttonii H. Dutton and Miss H. Walker May 26 1915-May 29 1915 321 San Mateo near Menlo Golf Club Comment
  UC517976  Acanthomintha duttonii Lewis S. Rose 1933-5-17 33171 San Mateo Redwood City 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
  JROH155  Acer macrophyllum John H. Thomas 1971-4-25 15786 San Mateo Jasper Ridge Biological Preserve, Stanford University 92 Comment
  JROH158  Acer macrophyllum John H. Thomas 1975-6-5 17948 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Searsville Dam 91 Comment
  JROH161  Acer macrophyllum John Hunter Thomas 1988-4-7 24380 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam; above San Francisquito Creek 87 Comment
  RSA131268  Acer macrophyllum Josephine Randall 1906-03 s.n. San Mateo San Francisquito Creek near Stanford University Comment
Read comments
Sep 18 2013
  JROH166  Acer negundo John H. Thomas 1959-4-5 7669 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH172  Acer palmatum Carol Zabel and Ann Lambrecht 2002-4-24 46 San Mateo Jasper Ridge Biological Preserve, Stanford University. Corte Madera creek floodplain north of Leonard's bridge about 25 feet 107 Comment
  CAS-BOT-BC21588  Achillea millefolium Fred Hemphill 1973-4-22 696 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-BC21600  Achillea millefolium Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC28766  Achillea millefolium K. L. Chambers 1984-6-14 5139 San Mateo San Gregorio State Beach, Highway 1. 30 Comment
  UCR254762  Achillea millefolium Peter Rubtzoff 1977-6-21 9065 San Mateo San Francisco Bay Region, San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  UCD128300  Achillea millefolium Leslie Fenster 1964-3-22 15 San Mateo near Crystal Spring Lake. 152 Comment
  UCD83704  Achnatherum Jesse Miller 2009-4-22 s. n. San Mateo Edgewood Park. Vegetation plot of Susan Harrison project. Plot # SCEP-S. 200 Comment
  JROH5888  Achyrachaena mollis Ruth Porter 1998-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2058  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
  SJSU7494  Acmispon americanus var. americanus L. S. Rose 1964-9-5 64071 San Mateo Emerald L W of Redwood City 243 Comment
  JROH2067  Acmispon glaber var. glaber W. R. Dudley 1893-7-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  JROH2070  Acmispon glaber var. glaber D. E. Breedlove 1971-5-31 19376 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake 125 Comment
  JROH2053  Acmispon parviflorus G. C. Kimber & Lucile Roush 1918-4-11 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2083  Acmispon wrangelianus John H. Thomas 1955-5-6 4991 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2095  Acmispon wrangelianus John H. Thomas 1967-5-10 12848 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2102  Acmispon wrangelianus John Hunter Thomas 1978-4-25 19152 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD37804  Acmispon wrangelianus Janet Turner 1933-4-18 3675 San Mateo Emerald Lake. Comment
  JROH2088  Acmispon wrangelianus Duncan M. Porter 1960-4-22 660 A San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of N-facing slope above Webb Ranch. Quadrat H-4 Comment
  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-BC139961  Adenostoma fasciculatum L. S. Rose 1941-6-12 41270 San Mateo Emerald Lake, hills west of Redwood City 120 Comment
  JROH3587  Adenostoma fasciculatum var. fasciculatum John H. Thomas 1975-5-2 17846 San Mateo Jasper Ridge Biological Preserve, Stanford University 156 Comment
  JROH3590  Adenostoma fasciculatum var. fasciculatum John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH87  Adiantum aleuticum John Hunter Thomas 1979-6-12 19591 San Mateo Jasper Ridge Biological Preserve, Stanford University. West side of dam, near bottom Comment
  CAS-BOT-BC65516  Adiantum aleuticum J. H. Thomas 1950-4-8 1465 San Mateo Boulder Creek Canyon, about 1 1/2 mile NW of city of Boulder Creek 274 Comment
  RSA120509  Adiantum aleuticum S. S. Tillett, I. Sternback 1956-6-25 547 San Mateo Along Patterson Creek, on Middleton property just above entrance to Portola State beach. 366 Comment
  SD27376  Adiantum aleuticum Kate O. Sessions 1879-1 San Mateo La Honda Comment
  SEINET10966201  Adiantum aleuticum Mary Susan Taylor 1978-8-30 Taylor 1864 San Mateo Comment
  CAS-BOT-BC65670  Adiantum jordanii Ira L. Wiggins 1928-4-14 2919 San Mateo Alpine Creek Road Comment
  JROH2707  Aesculus californica John H. Thomas 1971-5-30 15972 San Mateo Jasper Ridge Biological Preserve, Stanford University 120 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
  RSA18303  Aesculus californica Carl B. Wolf 1927-5-31 413 San Mateo North end of Searsville Lake. Comment
  SBBG7505  Agoseris apargioides var. eastwoodiae H. and M. Dearing 1938-6-21 2038 San Mateo Golden Gate Comment
  RSA18512  Agoseris grandiflora C. B. Wolf 1927-7-14 608 San Mateo Summit of Kings Mountain Rd. Comment
  JROH487  Agoseris heterophylla Arthur Spiegler 1952-4-12 4 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  POM53411  Agoseris heterophylla C. F. Baker s.n. San Mateo Near Stanford University Comment
  CAS-BOT-BC15244  Agoseris hirsuta W. R. Dudley 1893-7-1 s.n. San Mateo Stanford Campus Comment
  JROH4770  Agrostis avenacea John Hunter Thomas 1979-9-9 19727 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake 110 Comment
  CAS-BOT-BC210070  Agrostis capillaris Peter Rubtzoff 1978-7-8 9223 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Upper part of East Fork Colma Creek Canyon area. Comment
  SJSU15815  Agrostis densiflora John Rawlings, Toni Corelli 2016-5-13 1898 San Mateo Bean Hollow State Beach south bluff above beach 11 Comment
  UCD52025  Agrostis densiflora Beecher Crampton 1957-6-9 4166 San Mateo State Hwy. 1, 5 miles south of San Francisco. Comment
  CAS-BOT-BC127381  Agrostis exarata Michener; Bioletti 1893-6-1 132 San Mateo South Pilarcitos. Comment
  JROH4783  Agrostis exarata W. Lennihan 1990-5-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Mapache trail, 100 yards south of Trail 10, right side of trail. 112 Comment
  JROH4788  Agrostis exarata John Rawlings 2010-6-12 0988 San Mateo Jasper Ridge Biological Preserve, Stanford University; adjacent to trail just east of the first redwood grove on Trail 1 118 Comment
  UCD53056  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. 396 Comment
  JROH4795  Agrostis pallens John Rawlings 2011-10-7 1102 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
  SJSU15959  Agrostis pallens John Rawlings, Ken Hickman 2016-5-26 1835 B San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  UCD53094  Agrostis pallens August L. Hormay 1932-5-29 s.n. San Mateo San Mateo County. Comment
  RSA290667  Agrostis stolonifera Lyman Benson 1937-7-20 8462 San Mateo Menlo Park, San Francisco Bay. Lawn at 736 Partridge Ave. 30 Comment
  JROH4162  Ailanthus altissima John Hunter Thomas 1992-5-26 25353 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along SLAC corridor 82 Comment
  JROH4827  Aira caryophyllea John H. Thomas 1976-4-30 18104 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam 118 Comment
  JROH6210  Aira caryophyllea John Rawlings 2014-3-25 1241 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 2 at the Zoology Cabin foundation site 75 Comment
  RSA591524  Aira caryophyllea D. D. Keck 1932-3-6 1480 San Mateo Open hillside just west of Millbrae Highlands. 15 Comment
  SEINET7594518 Image available Aira caryophyllea A. D. E. Elmer 1903-1 4705 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC138232  Aira caryophyllea var. caryophyllea A. D. E. Elmer 1903-5-1 4705 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC138250  Aira caryophyllea var. caryophyllea John H. Thomas 1961-5-23 9455 San Mateo Portola State Park, near junction of Peters and Pescadero Creeks. 152 Comment
  SJSU15968  Aira praecox John Rawlings, Toni Corelli 2016-5-27 1848 San Mateo Bean Hollow bluff trail, west of Hwy 1 south of Pescadero 8 Comment
  JROH4298  Alisma triviale L. R. Abrams 1917-10-9 6865 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  JROH4541  Allium amplectens John H. Thomas 1975-5-26 17908 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC467291  Allium dichlamydeum Walter Knight; Irja Knight 1964-5-30 603 San Mateo North facing slope, Colma Canyon Comment
  JROH4549  Allium falcifolium John H. Thomas 1957-4-16 6662 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent slopes. Comment
  POM169881  Allium falcifolium A. D. E. Elmer 1903-06 4831 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC471097  Allium lacunosum var. lacunosum H. L. Dale 1920-6-1 s.n. San Mateo Near Menlo Park Comment
  RSA244729  Allium neapolitanum J. Ed McClellan, Bonnie McClellan 1972-04 s.n. San Mateo Bernal Ave., Burlingame. Comment
  CAS-BOT-BC132034  Allium peninsulare var. franciscanum A. D. E. Elmer 1903-6-1 4595 San Mateo San Mateo Comment
  JROH4556  Allium peninsulare var. franciscanum H. L. Mason 1921-5-13 s.n. 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
  JROH4561  Allium peninsulare var. franciscanum Toni Corelli 2003-5-28 259 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
  SEINET12044628  Allium unifolium R. S. Ferris 1921-1 2183 San Mateo New Year's Pt Comment
  CAS-BOT-BC169344  Alnus rubra Lewis S. Rose 1955-11-7 55189 San Mateo Tunitas stream banks 30 Comment
  CAS-BOT-BC137917  Alopecurus saccatus J. I. McMurphy 1906-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula. Pond near head of Crystal Springs Lakes. Comment
  JEPS20296  Ambrosia chamissonis Lewis S. Rose 1956-8-13 56144 San Mateo Princeton 6 Comment
  CAS-BOT-BC44930  Ambrosia chamissonis Lewis S. Rose 1956-8-13 56144 San Mateo Princeton sand dunes 6 Comment
  RSA93926  Ambrosia chamissonis var. chamissonis F. W. Peirson 1925-9-13 6427 San Mateo Rockaway beach. Comment
  CAS-BOT-BC136825  Amelanchier utahensis Elizabeth McClintock; Paul Reedberg 1988-8-12 s.n. San Mateo Slope below Summit, San Bruno Mountains Comment
  JROH5617  Amelanchier utahensis Ann Lambrecht 2014-4-29 49 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 14, about midway between dam and road C. 98 Comment
  CHSC57108  Ammophila arenaria Steven Triano 1988-5-24 203 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  CAS-BOT-BC27473  Amsinckia maculata Alice Eastwood 1915-6-13 4723 San Mateo Granada Comment
  JROH1353  Amsinckia menziesii John Hunter Thomas 1987-5-5 24241 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18466  Anagallis arvensis Carl B. Wolf 1927-6-29 542 San Mateo South of Pebble Beach near Pescadero. Comment
  CAS-BOT-BC45192  Anaphalis margaritacea Josephine D. Randall 1907-7-23 47 San Mateo Near Crystal Springs Lake Comment
  CAS-BOT-BC64291  Anaphalis margaritacea Delzie Demaree 1938-8-20 18061 San Mateo South San Francisco Comment
  POM176875  Anemone grayi W. R. Dudley 1894-3-26 s.n. San Mateo Redwoods beyond King's Mt. House Comment
  UC463321  Anemone oregana W. R. Dudley 1894-3-26 San Mateo redwoods beyond King's Mt. House; Santa Cruz Peninsula Comment
  CAS-BOT-BC273181  Anisocarpus madioides Josephine D. Randall 1907-6-29 91 San Mateo Santa Cruz Peninsula. Portola Valley Comment
  CAS-BOT-BC273174  Anisocarpus madioides W. R. Dudley 1895-6-6 4209 San Mateo Santa Cruz Mountain Peninsula. Banks of Woods of Conifers near Pescadero Creek - also on summit of Big Basin Comment
  JROH497  Anisocarpus madioides H. J. Dengler 1972-5-31 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; below redwood grove along S.F. Creek at Searsville Rocks. Growing at Violet Site - also on hillside 100 yds. south of Tiger Lily Site Comment
  UCD135771  Anisocarpus madioides Bruce G. Baldwin 1985-6-22 489 San Mateo 0.4 mile south of junction with Alpine Road along Skyline Road. Comment
  CAS-BOT-BC102288  Anthemis cotula Phillip Wheeler 1965-6-8 s.n. San Mateo Old County Road-Brisbane Comment
  JROH194  Anthriscus caucalis John H. Thomas 1967-5-31 12921 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH200  Anthriscus caucalis John H. Thomas 1975-4-30 17843 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH203  Anthriscus caucalis John Hunter Thomas 1989-5-5 24658 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR101615  Anthriscus caucalis George K. Helmkamp, E. A. Helmkamp 1998-5-16 3745 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  JROH5746  Anthriscus caucalis J. C. Gaither 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail along San Francisquito Creek, north of Rattlesnake rock. Comment
  JROH3912  Antirrhinum kelloggii Oz Garton 1968-6-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3604  Aphanes occidentalis John H. Thomas 1974-4-25 17216 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC454490  Aphanes occidentalis Margaret A. Barry 1937-5-8 68 San Mateo Exposed Slopes of Coal Mine Ridge Comment
  CAS-BOT-BC454502  Aphanes occidentalis J. H. Thomas 1963-1-27 10015 San Mateo Edge of grassland near westridge end of Jasper Ridge, Stanford University Biological Experimental Area. Comment
  CAS-BOT-BC451567  Aponogeton distachyos Peter H. Raven 1967-2-18 20829 San Mateo On east side of State Highway 5, 4.6 miles south of southern boundary of San Francisco. Comment
  SD1680  Aquilegia formosa Ulysses S. Grant IV 1925-6-1 San Mateo near La Honda Comment
  CAS-BOT-BC17322  Arabis blepharophylla Paul F. Covel 1937-4-15 578 San Mateo Montara Mountains. Highway summit. Comment
  CAS-BOT-BC17338  Arabis blepharophylla M. P. Johnson 1967-2-26 10016 San Mateo Off Crocker Avenue just south of San Francisco Boundary. Comment
  HSC6552  Arabis blepharophylla Lincoln Constance, Rimo Bacigalupi, C. R. Bell 1951-3-25 3369 San Mateo SE side of Colma Canyon 61 Comment
  OBI15221  Arabis blepharophylla Lewis S. Rose 1961-4-5 61032 San Mateo San Bruno Mts 366 Comment
  CAS-BOT-BC17325  Arabis blepharophylla W. R. Dudley 1900-3-18 s.n. San Mateo Santa Cruz Peninsula. 1st high hill between Salado Valley and Colma. Comment
  CAS-BOT-BC17326  Arabis blepharophylla W. R. Dudley 1900-3-18 s.n. San Mateo Santa Cruz Peninsula. 1st high hill between Salado Valley and Colma. Comment
  CAS-BOT-BC128669  Arbutus menziesii Phillip C. Wheeler 1965-5-25 s.n. San Mateo Brisbane Canyon - San Bruno Mountain Comment
  JROH1920  Arbutus menziesii John H. Thomas 1974-5-29 17397 San Mateo Jasper Ridge Biological Preserve, Stanford University; near riders' shack Comment
  RSA15205  Arbutus menziesii C. B. Wolf 1926-10-19 88 San Mateo Near La Honda. Santa Cruz Mts. Comment
  SEINET11989292  Arctostaphylos S. W. Edwards 1982-1 s.n. San Mateo Foothill Park Comment
  SEINET11989294  Arctostaphylos S. W. Edwards 1982-1 s.n. San Mateo Foothill Park Comment
  SEINET11989295  Arctostaphylos S. W. Edwards 1982-1 s.n. San Mateo Foothill Park Comment
  JEPS48587  Arctostaphylos andersonii James G. Daly 1934-1-1 175 San Mateo Middle La Honda Canyon Santa Cruz Mountains, San Gregorio Watershed Comment
  SEINET11987248  Arctostaphylos andersonii var. imbricata W. Knight, Knight, I. 1981-1 3903 San Mateo Tilden Botanic Garden, Berkeley, originally from San Bruno Mt Comment
  SEINET11989287  Arctostaphylos andersonii var. imbricata W. Knight, Knight, I.; McClintock, E. 1982-1 4445 San Mateo Kamchatka Point, San Bruno Mt Comment
  RSA303424  Arctostaphylos auriculata J. R. Shevock 1971-2-27 702 San Mateo 5 mi-Jct, Skyline Rd; So of Calif. Hwy 92. 457 Comment
  CAS-BOT-BC23505  Arctostaphylos crustacea W. R. Dudley 1894-3-23 s.n. San Mateo Road to La Honda Comment
  CAS-BOT-BC23514  Arctostaphylos crustacea John Thomas Howell 1931-1-18 5725 San Mateo King Mt. Comment
  CAS-BOT-BC23547  Arctostaphylos crustacea W. R. Dudley 1899-5-14 s.n. San Mateo Hills by road from San Andreas Lake to Pilarcitos Comment
  CAS-BOT-BC23549  Arctostaphylos crustacea C. F. Baker 1902-3-18 328 San Mateo King's Mountain Comment
  SEINET11989198  Arctostaphylos crustacea E. McClintock, Knight, W.; Knight, I. 1982-1 4645 San Mateo San Pedro County Park, near Pacifica Comment
  JROH1932  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1970-7-5 15665 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1937  Arctostaphylos crustacea subsp. crustacea John Rawlings 2008-1-30 0930 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near ridgetop north of Trail b (start uphill from trail b at first serpentine contact). 162 Comment
  UCD144585  Arctostaphylos crustacea subsp. crustacea Greg Escoto 2014-2-21 s.n. San Mateo San Pedro Valley Park, a county park located at 600 Oddstad Blvd. Along Hazelnut Trail. 152 Comment
  CAS-BOT-BC24731  Arctostaphylos glandulosa subsp. glandulosa Walter Knight; Roger Raiche 1982-1-23 4417 San Mateo San Bruno Mtn. Buckeye Canyon on Oak Ridge. 137 Comment
  RSA130907  Arctostaphylos hookeri subsp. hookeri E. K. Balls 1958-7-19 23563 San Mateo State Highway 5, 2 miles NW of junction with road from Big Basin State Park 671 Comment
  CAS-BOT-BC24451  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
  CAS-BOT-BC24498  Arctostaphylos imbricata Lewis S. Rose 1955-2-23 55002 San Mateo San Bruno Hills. Ridge e. of TV Station. Type Locality. Comment
  CHSC39432  Arctostaphylos imbricata B. A. Stein 1981-3-1 442 San Mateo San Bruno Mt., northeast summit ridge just below Radio Rd. 396 Comment
  RSA167604  Arctostaphylos imbricata R. F. Thorne, Percy C. Everett, K. Thorne 1963-6-9 32243 San Mateo On top of San Bruno Mt. neart TV tower. 335 Comment
  RSA195588  Arctostaphylos imbricata John H. Thomas 1961-5-7 9319 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  UCD50868  Arctostaphylos imbricata James Roof 1961-4-18 San Mateo From the northeast face of San Bruno Mt. 335 Comment
  CAS-BOT-BC40166  Arctostaphylos montaraensis John H. Thomas 1974-5-9 17329 San Mateo San Pedro Valley. Northern part of county, inland from Pacifica. 152 Comment
  UCD51756  Arctostaphylos montaraensis Walter Knight; Irja Knight and Elizabeth McClintock 1982-3-27 4496 San Mateo Downhill and north from Pacific Rock; San Bruno Mountain. 304 Comment
  JEPS98893  Arctostaphylos pacifica James Roof 1961-4-18 San Mateo type locality; Pacific Ridge, San Bruno Mountain Comment
  CAS-BOT-BC44734  Arctostaphylos regismontana Roman Gankin 1959-3-22 323 San Mateo Kings Mountain Road, 1.2 miles east of junction with State Highway 5, ca. 5 miles west of Woodside. Comment
  JEPS78657  Arctostaphylos regismontana Edward Lee 1936-1-26 1736 San Mateo junction King's Mt. Rd. and Skyline Blvd (summit of ridge); Cahill Ridge 609 Comment
  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
  UC1120844  Arctostaphylos regismontana A. E. Wieslander 1936-8-21 659 San Mateo Kings Mountain Santa Cruz Quadrangle Comment
  UC565403  Arctostaphylos regismontana Charles M. Belshaw 1936-1-25 1466 San Mateo Kings Mountain road 4.7 mi w Woodside; South Coast Range Comment
  UC83852  Arctostaphylos regismontana C. F. Baker 1902-1-15 271 San Mateo about summit; King's Mountain Comment
  HSC24032  Arctostaphylos tomentosa subsp. crustacea Mary Katherine Wicksten 1971-6-17 29 San Mateo Huddart Park, Zwierlein Trail Comment
  JEPS98865  Arctostaphylos tomentosa subsp. crustacea James B. Roof, Irja Knight 1964-9-14 San Mateo Montara Mountain, W summit Comment
  RSA636839  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24649 San Mateo NW side of Montara Mtn. 150 Comment
  RSA636848  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24648 San Mateo NW side of Montara Mtn. 150 Comment
  UC565408  Arctostaphylos tomentosa subsp. crustacea Chas. M. Belshaw 1936-1-25 1465 San Mateo Kings Mountain rd 4.5 mi w Woodside; South Coast Range Comment
  UC762228  Arctostaphylos tomentosa subsp. crustacea R. F. Hoover 1941-2-12 4763 San Mateo nw Saratoga Summit Comment
  RSA17966  Arctostaphylos tomentosa subsp. crustacea C. B. Wolf 1927-8-13 713 San Mateo Near summit La Honda Grade, Santa Cruz Mts. Comment
  SEINET11988249  Arctostaphylos tomentosa var. tomentosiformis Unknown 1959-1 325 San Mateo 1.2 mi from junction CA 5 on King's Mt. Road Comment
  JEPS108605  Arctostaphylos uva-ursi Roger Raiche 1984-7-18 10153 San Mateo San Bruno Mountain, Kamchatka Point Comment
  SJSU6464  Arctostaphylos uva-ursi S. H. Casey 1969-5-18 264 San Mateo Kamchatka Point, San Bruno Mt 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
  SEINET11987485  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
  SEINET11987185  Arctostaphylos uva-ursi var. coactilis W. Knight, Knight, I. 1981-1 3929 San Mateo Tilden Botanic Garden, Berkeley, orig. from San Bruno Mt Comment
  SEINET11987482  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4200 San Mateo Strybing Arboretum, Golden Gate Park, San Francisco, orig. from Samoa Sand Spit 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
  SEINET11989256  Arctostaphylos uva-ursi var. coactilis Unknown 1959-1 328 San Mateo near ridge of San Bruno Mountain, South San Francisco, 0.25 mi E of KRON TV transmitter Comment
  CAS-BOT-BC27300  Arctostaphylos uva-ursi var. suborbiculata W. Knight; Irja Knight; Elizabeth McClintock 1981-7-3 4492 San Mateo Kamchatka Point, San Bruno Mountain Comment
  RSA0008939  Arctostaphylos viscida subsp. viscida Edward L. Greene 1902-3-18 10654 San Mateo King's Mountain. Comment
  CAS-BOT-BC82518  Arnica discoidea David D. Keck 1932-5-11 1775 San Mateo East side of Kings Mountain, on Kings Mountain Road 350 Comment
  CAS-BOT-BC84882  Artemisia californica George Oberlander 1949-10-8 392 a San Mateo San Francisco Watershed Reserve - Sweeney Ridge Comment
  CAS-BOT-BC84885  Artemisia californica Walter Knight; Irja Knight; Elizabeth McClintock 1964-9-11 s.n. San Mateo San Bruno Mountain, Point San Bruno Comment
  CAS-BOT-BC84886  Artemisia californica Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo San Bruno Mountain, Power Line Ridge Comment
  JROH517  Artemisia californica John H. Thomas 1978-9-24 19335 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA94535  Artemisia californica F. W. Peirson 1925-9-13 6429 San Mateo Rockaway beach. Comment
  HSC24037  Artemisia douglasiana Mary Katherine Wicksten 1971-7-12 169 San Mateo Huddart Park; Road bank of King's Mountain Rd. below Archery Flat Comment
  UCR240608  Artemisia pycnocephala T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3528 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
  SEINET11853520  Artemisia pycnocephala E. A. Purer 1933-1 5387 San Mateo 2 mi S of Pigeon Point Comment
  UC484308  Artemisia pycnocephala C. B. Wolf 1930-11-5 1806 San Mateo along coastal bluffs s of Pescadero 7 Comment
  UCD56052  Arundo donax Malcolm A. Nobs; S. Galen Smith 1949-8-25 1574 San Mateo South of Rockway Beach. Comment
  CAS-BOT-BC400510  Asarum caudatum A. D. E. Elmer 1903-6-1 4421 San Mateo Butano Creek Comment
  JROH432  Asclepias fascicularis John H. Thomas 1974-6-27 17444 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JEPS127849  Astragalus gambelianus Adam C. Schneider with C. Matt Guilliams 2013-4-7 87 San Mateo West side of boulder pile. Comment
  JROH1991  Astragalus gambelianus John H. Thomas 1974-4-24 17184 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA60155  Astragalus gambelianus Lois E. James 1946-4-16 1741 San Mateo Hills back of Redwood City. High Road off Woodside Road. Comment
  SEINET948337  Astragalus gambelianus Lewis S. Rose 1956-1 56113 San Mateo Skyline Blvd., hills w. of San Mateo 183 Comment
  SEINET948341  Astragalus gambelianus Lois E. James 1946-1 1741 San Mateo Serpentine hills back of redwood city. High Road off Woodside Road. Comment
  UC903415  Astragalus gambelianus Lois E. James 1946-4-16 1740 San Mateo high road off Woodside Road hill back Redwood City; hills back of Redwood City Comment
  CAS-BOT-BC186768  Astragalus gambelianus W. R. Dudley 1894-4-21 s.n. San Mateo Below Crystal Springs Dam Comment
  RSA60160  Astragalus gambelianus Lois E. James 1947-4-11 1757 San Mateo Hills back of Redwood City. Comment
  POM16234  Astragalus nuttallii C. F. Baker 1902-10-1 1736 San Mateo Pillar Point. Comment
  CAS-BOT-BC194429  Astragalus nuttallii var. virgatus Copeland 1905-6-3 3299 San Mateo Montara Pt. Comment
  UCD35773  Astragalus nuttallii var. virgatus Beecher Crampton 1962-6-11 6495 San Mateo Pacifica, north city limits, along State Hwy. 1 just southwest of its junction with Skyline Blvd. Comment
  RSA498284  Astragalus nuttallii var. virgatus E. A. Purer 1933-8-13 5405 San Mateo Santa Clara Valley near Baden Station. 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-BC193095  Astragalus pycnostachyus var. pycnostachyus C. F. Leitholt 1894-7-1 s.n. San Mateo Pescadero Comment
  CDA26740  Astragalus pycnostachyus var. pycnostachyus T. C. Fuller 1967-8-23 16295 San Mateo West of coast highway (Highway 1), 1 mile northwest of Pescadero. 0 Comment
  CAS-BOT-BC66140  Athyrium filix-femina var. cyclosorum D. E. Breedlove 1973-9-26 35558 San Mateo Pescadero Creek County Park 365 Comment
  CAS-BOT-BC66142  Athyrium filix-femina var. cyclosorum John Thomas Howell 1926-10-9 2218 San Mateo Near Lake San Andreas Comment
  CAS-BOT-BC17587  Athysanus pusillus Peter H. Raven 1951-2-18 2734 San Mateo Summit Ridge San Bruno Mountains. Comment
  SJSU16060  Atriplex californica Toni Corelli 2010-4-8 511 San Mateo Ano Nuevo State Park, west end of Franklin Point Trail Comment
  POM164809  Atriplex leucophylla E. B. Copeland 1903-6-5 3321 San Mateo Montara Point. Comment
  CAS-BOT-BC146078  Avena barbata John H. Thomas 1958-3-19 7048 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 91 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
  HSC9008  Avena fatua C. B. Wolf 1927-6-4 San Mateo South of San Gregorio Comment
  JROH4846  Avena fatua W. Lennihan 1990-4-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Across parking lot from picnic tables. Comment
  SEINET3919671  Avena fatua var. glabrata K. Allred 1975-1-3 1269 San Mateo Half Moon Bay. Along access road to Dune Beach.; 0 Comment
  POM308447  Baccharis douglasii Henry J. Ramsey, Henry J. Ramsey 1939-10-7 3060 San Mateo San Mateo Comment
  JROH534  Baccharis glutinosa John H. Thomas 1970-7-5 15669 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH536  Baccharis glutinosa John H. Thomas 1974-8-3 17497 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC750699  Baccharis glutinosa Lewis S. Rose 1946-7-14 46220 San Mateo Searsville Lake margin Searsville Lake 68 Comment
  UC893653  Baccharis glutinosa Roxana Stinchfield 1915-10-14 262 San Mateo Santa Cruz Mountain Peninsula, San Francisquito Creek Comment
  CAS-BOT-BC99518  Baccharis pilularis H. L. Mason 1922-3-27 s.n. San Mateo near mouth of Arroyo de los Frijoles Comment
  CAS-BOT-BC99531  Baccharis pilularis W. R. Dudley 1895-10-19 s.n. San Mateo Near San Francisquito Creek, toward Searsville Comment
  POM54355  Baccharis pilularis A. D. E. Elmer 1903-02 4576 San Mateo Portola Comment
  UCSC007721  Baccharis pilularis Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  JROH1439  Barbarea orthoceras John H. Thomas 1967-4-20 12709 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1445  Barbarea orthoceras John Hunter Thomas 1980-5-6 19933 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1450  Barbarea orthoceras John Hunter Thomas 1982-7-8 21078 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  CHSC56593  Bellardia trixago Steven Triano 1988-5-24 174 San Mateo Along w side of Sand Hill Road 0.5 mi s of its jct. with Whiskey Hill Road and 2.5 mi s of Woodside. 121 Comment
  JROH3926  Bellardia trixago John Hunter Thomas 1987-5-19 24291 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  UCR122983  Bellardia trixago George K. Helmkamp, E. A. Helmkamp 2001-6-2 6777 San Mateo San Francisco Bay Region, Purisima Creek Road, east of Half Moon Bay at Purisima Creek, 3.2 miles east of CA Hwy 1 244 Comment
  SJSU783  Bellardia trixago M. Bogner 1943-4-24 San Mateo near Menlo Park Comment
  CAS-BOT-BC100192  Bellis perennis Elizabeth McClintock 1967-9-24 s.n. San Mateo Crocker Avenue Comment
  SJSU945  Berberis aquifolium W. M. Bybee 1948-2-20 San Mateo residence, Burlingame Comment
  CAS-BOT-BC75864  Berberis pinnata Walter Knight; Walter Knight 1963-6-24 982 San Mateo San Bruno Mountains. Quarry 4. Comment
  POM149245  Berberis pinnata A. D. E. Elmer 1903-04 4820 San Mateo San Bruno Hills Comment
  CDA3007  Beta vulgaris E. L. Labadie 1961-10-24 San Mateo Railroad tracks at Chestnut Street, Redwood City. 0 Comment
  CAS-BOT-BC100319  Blennosperma nanum var. robustum A. D. E. Elmer 1903-4-1 4521 San Mateo San Bruno Hills Comment
  POM32550  Boisduvalia densiflora var. densiflora A. D. E. Elmer 1903-06 4273 San Mateo Crystal Springs Lake. Comment
  POM133483  Bowlesia incana C. F. Baker 1902-4-12 510 San Mateo La Honda. Comment
  JROH4859  Brachypodium distachyon W. Lennihan 1990-5-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Escobar cutoff (Trail 15), turn right just before Quercus douglasii and weather station (Trail 16), 15 yards on right of path. 191 Comment
  CDA20475  Brachypodium sylvaticum J. Beall 2003-12-12 PDR 1387963 San Mateo San Francisco Bay Area; Along Hwy 84 at Grandview Dr. 0 Comment
  JROH4866  Brachypodium sylvaticum John Rawlings 2007-10-1 1025 San Mateo Jasper Ridge Biological Preserve, Stanford University. In middle of road inside Preserve Fence along Sand Hill Road south of caretaker's house. 107 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
  SEINET10481265  Brassica campestris David D. Keck 1932-2-16 Keck 1377 San Mateo Portola. Common in cultivated orchards, roadsides, etc. Comment
  CAS-BOT-BC28047  Brassica fruticulosa Elizabeth McClintock; Paul Reeberg 1989-2-4 s.n. San Mateo San Bruno Mountains. Near horse corral, off Bayshore. Comment
  UC2049865  Brassica nigra H. W. Johansen 1955-4-10 48 San Mateo Pescadero Creek Road, about 4 miles E of Pescadero Comment
  CAS-BOT-BC36671  Brassica oleracea J. Ed. McClellan; Bonnie McClellan 1972-3-22 s.n. San Mateo In abandoned field on Highway 1 opposite Princeton. Comment
  CAS-BOT-BC36798  Brassica rapa Daniel Cohen 1953-5-9 71 San Mateo Top of sea cliff at Pescadero. Comment
  POM272668  Brassica rapa Lyman Benson 1939-7-1 9677 San Mateo Skyline Bouldevard; San Francisco City Limits. 30 Comment
  SEINET3292600 Image available Brassica rapa David D. Keck 1932-2-16 1377 San Mateo Portola, in cultivated orchards, roadside Potola Comment
  CAS-BOT-BC186703  Brassicaceae Fred Hemphill 1973-3-9 628 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC145333  Briza minor John H. Thomas 1964-4-30 10374 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  JROH4881  Briza minor John H. Thomas 1967-6-1 12957 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4889  Briza minor John Hunter Thomas 1983-6-2 22334 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC306623  Briza minor A. D. E. Elmer May, 1903 4912 San Mateo Crystal Springs Lake Comment
  UC790954  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo near San Carlos Comment
  UCD57435  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo Near San Carlos. Comment
  UCR143328  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo Near San Carlos 30 Comment
  UC1134026  Brodiaea elegans subsp. elegans N. Carlson 1935-6-20 72 San Mateo between Slate and Oil Creek; Santa Cruz Quad. 670 Comment
  CAS-BOT-BC483173  Brodiaea terrestris subsp. terrestris C. F. Baker 1902-4-6 462 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC483178  Brodiaea terrestris subsp. terrestris H. L. Mason 1917-4-10 113 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC483185  Brodiaea terrestris subsp. terrestris Philip C. Wheeler 1965-5-25 s.n. San Mateo Brisbane Ridge, south of power lines, San Bruno Mountain Comment
  CAS-BOT-BC144138  Bromus John H. Thomas 1962-4-24 9848 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC183618  Bromus carinatus Peter Rubtzoff 1978-4-2 9152 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CDA7725  Bromus carinatus D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  SEINET3128654  Bromus carinatus L. R. Abrams 1902-5-11 2462 San Mateo Carplot Springs Comment
  CAS-BOT-BC149025  Bromus carinatus var. carinatus Le Roy Abrams 1902-5-11 2462 San Mateo Crystal Springs. Comment
  JROH5634  Bromus carinatus var. carinatus John Rawlings 2004-7-11 1002 San Mateo Jasper Ridge Biological Preserve, Stanford University. Hermit's cabin site. 180 Comment
  UC1131001  Bromus carinatus var. carinatus H. S. Yates 1935-5-8 5198 San Mateo 2 mi n of Langley Hill 579 Comment
  RSA254230  Bromus diandrus Robert A. Norris 1975-3-31 2286 San Mateo Near Crocker Avenue, San Bruno Mountains. Comment
  RSA475252  Bromus diandrus Lyman Benson 1935-5-5 6520 San Mateo Lake Searsville; Santa Cruz Mt. Range. S. F. Bay watershed 152 Comment
  SEINET3892511  Bromus diandrus R. L. Johnson 2012-4-6 12 -003 San Mateo Half Moon Bay, roadside on Redondo Beach Rd.; 0 25 Comment
  CAS-BOT-BC155134  Bromus hordeaceus George Oberlander 1950-5-28 1000 San Mateo San Francisco Watershed Reserve. North boundary. Comment
  JEPS128403  Bromus hordeaceus Adam C. Schneider 2013-5-17 130 San Mateo Crystal springs Reservoir. Comment
  JROH4916  Bromus hordeaceus Duncan M. Porter 1960-5-5 678 San Mateo Jasper Ridge Biological Preserve, Stanford University. Meadow near crest of N-facing slope above Webb Ranch Comment
  JROH4922  Bromus hordeaceus Stephen N. Turitzin 1975-5-7 1 San Mateo Jasper Ridge Biological Preserve, Stanford University 190 Comment
  CAS-BOT-BC162407  Bromus laevipes A. A. Heller 1907-5-23 8566 San Mateo Back of San Mateo on the Half Moon Bay road. Comment
  CAS-BOT-BC162309  Bromus madritensis Paul Arnaud 1941-4-17 s.n. San Mateo Redwood City, Jefferson Avenue. Comment
  POM285930  Bromus madritensis Lyman Benson 1935-5-5 6544 San Mateo Lake Searsville; Santa Cruz Mt. Range. S. F. Bay watershed 152 Comment
  JROH5604  Bromus madritensis subsp. madritensis John Rawlings 2013-4-2 1148 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 11 ten meters west of the upper footbridge 129 Comment
  JROH5700  Bromus madritensis subsp. madritensis John Rawlings 2015-4-7 1458 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road F in serpentine prairie west of Escobar Gate 166 Comment
  JROH4951  Bromus madritensis subsp. rubens John Hunter Thomas 1989-5-11 24740 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4959  Bromus madritensis subsp. rubens John Rawlings 2013-5-7 1182 San Mateo Jasper Ridge Biological Preserve, Stanford University. Road L near the Searsville School sign. 107 Comment
  SEINET10954096  Bromus rubens Robert A. Norris 1977-5-2 Norris 3568 San Mateo Locally abundant in disturbed soil on gravelly bank by Interstate Hwy. 280, just S of Farmhill Blvd. Exit, Woodside, San Mateo Co., California. Comment
  OBI22458  Bromus sitchensis Lewis S. Rose 1963-4-27 63003 San Mateo Skyline Blvd, W of San Mateo 91 Comment
  JROH4966  Bromus tectorum John Hunter Thomas 1983-7-7 22827 A San Mateo Jasper Ridge Biological Preserve, Stanford University; near edge of lake below Searsville Lab Comment
  UC676750  Cakile edentula Reed C. Rollins 1941-7-19 2961 San Mateo along beach at Half Moon Bay Half Moon Bay Comment
  SEINET12004683  Cakile edentula subsp. edentula M. T. Doutt 1931-1 189 San Mateo Ano Nuevo Pt Comment
  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
  POM272561  Cakile maritima Lyman Benson 1941-7-19 11002 San Mateo Half Moon Bay. 3 Comment
  CAS-BOT-BC36960  Cakile maritima var. maritima W. R. Beutley 1957-5-11 81 San Mateo State Highway #1, 2 miles below Pescadero. 4 Comment
  CAS-BOT-BC36962  Cakile maritima var. maritima Daniel Cohen 1953-5-9 94 San Mateo Near mouth of Pescadero Creek. Comment
  POM199095  Calamagrostis nutkaensis A. D. E. Elmer 1903-05 5040 San Mateo San Pedro Comment
  CAS-BOT-BC438531  Calandrinia ciliata H. A. Dutton 1900-2-11 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  CAS-BOT-BC438532  Calandrinia ciliata Le Roy Abrams 1902-5-4 2406 San Mateo Woodside 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
  JROH4594  Calochortus albus L. R. Abrams 1914-5-1 5224 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Reservoir Comment
  JROH4600  Calochortus albus John H. Thomas 1972-5-5 16083 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET7097930  Calochortus albus A. G. Vestal 1937-6-15 s.n. San Mateo Lat. 37 14' 13ao N, Long. 122 24' 55ao W(NAD27 converted to WGS84 decimal degrees). Pebble Beach west of Pescadero. UTM Zone 10, 551863 mE, 4121109 mN. Comment
  UC306641  Calochortus albus A. D. E. Elmer May 1903 4846 San Mateo San Mateo Comment
  CAS-BOT-BC492207  Calochortus albus Marion Ownbey; Ruth P. Ownbey 1938-7-7 1698 San Mateo Canyonside, Redwood Belt, Santa Cruz Mts., 3 miles west of Woodside Comment
  CAS-BOT-BC492216  Calochortus albus Eric Walther 1920-5-9 s.n. San Mateo Woodside Comment
  JROH4630  Calochortus luteus John H. Thomas 1969-5-28 15089 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM291026  Calochortus luteus Lyman Benson 1930-5-3 2117 -A San Mateo Hills by Stanford University; Santa Cruz mountain range, Corte Madera Creek watershed 152 Comment
  SEINET12044176  Calochortus luteus L. S. Rose 1933-1 33255 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC493994  Calochortus tolmiei Josephine D. Randall 1907-4-27 225 San Mateo Kings Mt.; Santa Cruz Peninsula Comment
  JEPS20302  Calycadenia multiglandulosa Lewis S. Rose 1956-7-9 56120 San Mateo hills w of, Emerald Lake Redwood City; Emerald Lake 182 Comment
  UC662579  Calycadenia multiglandulosa L. S. Rose 1941-6-12 41268 San Mateo hills w Redwood City; Emerald Lake 120 Comment
  POM204003  Calycadenia multiglandulosa subsp. cephalotes L. S. Rose 1934-5-23 34278 San Mateo Emerald Lake. Comment
  CAS-BOT-BC436447  Calystegia occidentalis Elizabeth McClintock; Phillip C. Wheeler 1967-6-11 s.n. San Mateo San Bruno Mountain, slope to S of new Guadalupe Parkway just before it meets Radio Road Comment
  UC942937  Calystegia purpurata Lewis S. Rose 1950-5-20 50141 San Mateo hills w Redwood City (Emerald Lake Region); , w of Redwood City 243 Comment
  JEPS10201  Calystegia soldanella Rimo Bacigalupi with G. T. Robbins 1954-6-18 4558 San Mateo one-half mi n Pigeon Point; one-half mi n of Pigeon Point Comment
  CAS-BOT-BC436440  Calystegia subacaulis George Oberlander 1950-4-16 739 San Mateo San Francisco Watershed Reserve, south boundary Comment
  CAS-BOT-BC224345  Calystegia subacaulis subsp. subacaulis A. D. E. Elmer 1903-6-1 4826 San Mateo Crystal Springs Lake Comment
  JROH1844  Calystegia subacaulis subsp. subacaulis John H. Thomas 1957-4-16 6652 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC306752  Calystegia subacaulis subsp. subacaulis A. D. E. Elmer June, 1903 4826 San Mateo Crystal Springs Lake Comment
  RSA10280  Camissonia cheiranthifolia subsp. cheiranthifolia H. A. Barker 1927-5-14 670 San Mateo North of Half Moon Bay. Comment
  POM271879  Camissonia ovata Lyman Benson 1928-4-21 96 San Mateo Stanford University, Santa Cruz Mt., San Francisquito Creek. 122 Comment
  UC168532  Camissonia strigulosa Katharine Brandegee June 1905 San Mateo Colma Comment
  CAS-BOT-BC160329  Camissoniopsis cheiranthifolia subsp. cheiranthifolia John H. Thomas 1963-5-20 10108 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  UC306527  Camissoniopsis micrantha A. D. E. Elmer May 1903 4813 San Mateo San Pedro Comment
  JROH1644  Campanula griffinii John Hunter Thomas 1983-6-2 22332 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10463064  Campanula prenanthoides LeRoy R. Abrams 1907-8-26 Abrams s.n. San Mateo Kings Mountain Comment
  SEINET10463068  Campanula prenanthoides Wolf 1927-7-20 WOLF 646 San Mateo La Honda Grade Comment
  SEINET10840327  Campanula prenanthoides Leithold 1894-7-28 LEITHOLD s.n. San Mateo LA HONDA ROAD Comment
  SEINET10939009  Campanula prenanthoides William R. Dudley 1894-7-7 Dudley s.n. San Mateo Bear Gulch 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-BC37164  Capsella bursa-pastoris D. D. Davis 1903-4-1 s.n. San Mateo Near Dennis Martin Place. 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-BC37663  Cardamine californica W. R. Dudley 1904-4-7 s.n. San Mateo Santa Cruz Mountain Peninsula. By Los Francos Creek 1.5 mile above Judge Allens. Comment
  CAS-BOT-BC37667  Cardamine californica LeRoy Abrams 1902-3-16 2274 San Mateo Kings Mountain Road. Comment
  CAS-BOT-BC37680  Cardamine californica Kellogg 1870-3-27 s.n. San Mateo San Mateo road to Crystal Springs. Comment
  CAS-BOT-BC37669  Cardamine californica Reed Clark Rollins 1941-3-16 2943 San Mateo Santa Cruz Mountains. East slope of Kings Mountain, 6 miles west of Woodside. Comment
  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
  JEPS127781  Cardamine oligosperma Adam C. Schneider with C. Matt Guilliams 2014-3-9 42 San Mateo Comment
  JROH1492  Cardamine oligosperma John H. Thomas 1968-3-17 14182 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB18657  Cardamine oligosperma Schulte, John 1963-4-9 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC37991  Cardamine oligosperma Javier Penalosa 1963-3-9 2686 San Mateo San Bruno Mountain. Ravine 0.5 mile east of 1314 foot summit. 304 Comment
  JROH583  Carduus tenuiflorus Suzanne Biossat 1943-5-7 75 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18451  Carex Carl B. Wolf 1927-6-29 556 San Mateo South of Pebble Beach near Pescadero Comment
  UCD140996  Carex R. H. Sciaroni 1977-7-26 s.n. San Mateo exact location unknown. Comment
  RSA101006  Carex amplifolia G. Oberlander 1950-5-21 958 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve Comment
  JEPS109523  Carex brevicaulis Dean W. Taylor 1992-3-19 12338 b San Mateo Bean Hollow, on coastal bluff ca. 400 m n along the coast from the parking area on the beach side of Highway 1 alingment Comment
  CAS-BOT-BC18924  Carex densa John Thomas Howell 1938-5-1 13786 San Mateo Near South San Francisco. Comment
  SEINET3128102  Carex densa Unknown 1902-5-11 2444 San Mateo Crystal S? Comment
  JROH4336  Carex divulsa subsp. divulsa John Rawlings 2013-5-7 1175 San Mateo Jasper Ridge Biological Preserve, Stanford University; on the lake side and near east end of Leonard's Bridge on the bank of the channel 107 Comment
  RSA304145  Carex dudleyi L. S. Rose 1937-4-30 37243 San Mateo Brisbane. 6 Comment
  CAS-BOT-BC21815  Carex harfordii Alice Eastwood; John Thomas Howell 1938-6-26 6059 San Mateo Near Pescadero. Comment
  CAS-BOT-BC21816  Carex harfordii Alice Eastwood; John Thomas Howell 1938-6-26 6056 San Mateo Near Pescadero. Comment
  SJSU15225  Carex harfordii Toni Corelli 2012-6-28 801 San Mateo Pescadero State Beach, North Pond 3 Comment
  CAS-BOT-BC21812  Carex harfordii George Thomas Oberlander 1950-4-23 847 San Mateo Cahill Ridge. Comment
  CAS-BOT-BC176410  Carex obnupta Peter Rubtzoff 1978-5-18 9173 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC117645  Carex serratodens LeRoy Abrams 1902-5-4 2425 San Mateo Woodside. Comment
  CAS-BOT-BC117650  Carex serratodens Lewis Samuel Rose 1936-5-28 36304 San Mateo Emerald L., W of Redwood City. Comment
  CAS-BOT-BC539276  Carex subbracteata John Rawlings; Sara Timby; Toni Corelli 2016-4-23 1731 A San Mateo Along Bean HOllow bluff trail, W of Hwy 1, S of Pescadero 8 Comment
  JROH5662  Carex subbracteata John Rawlings 2014-5-19 1252 San Mateo Jasper Ridge Biological Preserve, Stanford University. At west edge of California semaphore grass vernal depression. 122 Comment
  UCR279903  Carex subbracteata Peter Rubtzoff 1975-5-21 7975 San Mateo Central Coast, San Bruno Mountains, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road Junction 220 Comment
  CAS-BOT-BC176406  Carex subbracteata Peter Rubtzoff 1978-5-18 9172 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, westernmost part of the area. Comment
  SEINET7577065 Image available Carex subbracteata John Thomas Howell 1938-5-1 13778 San Mateo Near South San Francisco. Comment
  CAS-BOT-BC116819  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell 1937-5-7 4326 San Mateo Visatacion Valley. Comment
  CAS-BOT-BC116823  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5248 San Mateo Lobitas Comment
  CAS-BOT-BC115511  Carex tumulicola W. R. Dudley 1910-5-26 s.n. San Mateo Coal Mine Ridge near Black Mountain Comment
  JROH4372  Carex tumulicola John Rawlings, Carol Zabel, Ann Lambrecht 2005-6-15 0909 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Several yards from the intersection of Trail 2 with Trail 3. 86 Comment
  UC836649  Carex tumulicola W. R. Dudley 1910-5-26 San Mateo near Black Mt. (Coal Mine Ridge) Comment
  CAS-BOT-BC115505  Carex tumulicola Elizabeth McClintock; P. Reeberg 1989-5-23 s.n. San Mateo Below the east end of Ranch Road, western Guadalupe Hills. 99 Comment
  SD40038  Carpobrotus chilensis Edith A. Purer 1933-7-27 5393 San Mateo Pigeon Point, two miles south Comment
  CDA42246  Carthamus creticus J. Beall 2002-9-17 PDR 065864 San Mateo San Francisco Bay Area; 1/4 mi E of Skyline Blvd at Windy Hill along fence. 0 Comment
  JEPS88831  Castilleja T. I. and F. M. Chuang 1991-7-1 7850 San Mateo 0.8 mi n San Gregorio Beach Comment
  HSC23912  Castilleja affinis Mary Katherine Wicksten 1971-6-17 61 San Mateo Huddart Park, along Chickadee Trail Comment
  LA209094  Castilleja affinis A. A. Heller; 1907-4-20 8442 San Mateo Near Lake Merced 60 Comment
  POM15998  Castilleja affinis C. F. Baker 1903-4-6 1877 San Mateo San Bruno Hills near S.F. [San Francisco] Comment
  SEINET12288585  Castilleja affinis Cummings, McCallum 1933-1 s.n. San Mateo in Spring Valley Comment
  JEPS86438  Castilleja affinis subsp. affinis L. R. Heckard 1988-6-9 6679 San Mateo Pescadero Beach State Park 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
  JROH3934  Castilleja affinis subsp. affinis Joseph J. Schweitzer 1951-4-21 36 San Mateo Jasper Ridge Biological Preserve, Stanford University 152 Comment
  JROH3947  Castilleja affinis subsp. affinis John H. Thomas 1981-4-23 20467 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3953  Castilleja affinis subsp. affinis John Rawlings 2013-4-23 1172 San Mateo Jasper Ridge Biological Preserve, Stanford University. Uphill from Trail c. 180 Comment
  UC886508  Castilleja ambigua subsp. ambigua Alice Eastwood 1912-6-2 208 San Mateo Granada Comment
  JROH3958  Castilleja attenuata John H. Thomas 1974-4-19 17164 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3962  Castilleja attenuata John Hunter Thomas 1978-4-22 19110 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1012313  Castilleja exserta F. W. Pennell and L. R. Abrams 1940-5-16 25432 San Mateo 2 mi sw Skyline Boulevard (on Alpine Creek Road) 579 Comment
  SJSU15800  Castilleja exserta subsp. latifolia Toni Corelli 2010-6-6 680 San Mateo Montara State Beach. Bluff top west of Highway 1 14 Comment
  UC406904  Castilleja exserta subsp. latifolia David D. Keck 1927-6-10 395 San Mateo Montara Point; Radio Station 0 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
  SEINET10744868 Image available Castilleja franciscana Francis W. Pennell 1940-5-15 Pennell 25420 San Mateo Dark adobe clay (roadbank). E. of upper Crystal Springs Lake, s.w. of San Mateo. 61 Comment
  CAS-BOT-BC243825  Castilleja latifolia C. F. Baker 1906-5-1 799 San Mateo King's Mt. Comment
  CAS-BOT-BC243840  Castilleja latifolia John Thomas Howell 1933-4-9 10966 San Mateo Hills south of Pescadero Comment
  SEINET12288716  Castilleja latifolia Unknown 1932-1 8989 San Mateo between Sky Line Drive & Half Moon Bay Comment
  JROH4007  Castilleja rubicundula subsp. lithospermoides John Hunter Thomas 1986-5-8 24025 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC1696  Castilleja subinclusa subsp. franciscana M. Barkowski 1930-4-29 San Mateo Moss Beach. Comment
  JEPS6917  Castilleja subinclusa subsp. franciscana Rimo Bacigalupi with J. R. Sweeney 1954-8-3 4740 San Mateo lower slopes Tunitas Canyon (about 2 mi above and e of junction of road ascending canyon with the old coast road) 167 Comment
  JEPS18915  Castilleja wightii Rimo Bacigalupi with G. Thomas Robbins 1955-8-4 5451 San Mateo just Crystal Springs Lake (s lake) (along Skyline Blvd (Calif Hwy 5), at a point 6.2 mi n of the junction with Kings Mtn (not the La Honda) road) 396 Comment
  JEPS6953  Castilleja wightii Peter H. Raven 1950-4-30 1989 San Mateo Montara Mts. 24 Comment
  RSA152274  Castilleja wightii John H. Thomas 1961-5-7 9305 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  UC1341771  Castilleja wightii Noel H. Holmgren and James L. Reveal 1966-6-5 2632 San Mateo 0.25 mi s Skyline Boulevard (Calif. Hwy. 35) jct. with Calif. Hwy. 1 Comment
  UC198390  Castilleja wightii Katharine Brandegee 1917-7-15 San Mateo Moss Beach Comment
  UC648313  Castilleja wightii Blanche Clear 1938-5-22 San Mateo between Redwood and Belmont (Hiddne Valley); Hidden Valley Comment
  UC885266  Castilleja wightii Alice Eastwood 1915-6-13 4710 San Mateo Granada Comment
  JEPS6867  Castilleja wightii Rimo Bacigalupi with G. Thomas Robbins 1954-6-18 4548 San Mateo e side Sierra Morena (new La Honda grade) 591 Comment
  POM20827  Castilleja wightii Katherine Brandegee 1917-7-15 s.n. San Mateo Moss Beach between the station and the bluffs. Comment
  CAS-BOT-BC40399  Caulanthus lasiophyllus Ned Cahill 1974-4-29 198 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  CAS-BOT-BC40393  Caulanthus lasiophyllus Art Menzies; Barbara Menzies 1965-3-14 s.n. San Mateo San Bruno Mountains. South Power Line Ridge. Comment
  CAS-BOT-BC40397  Caulanthus lasiophyllus Peter H. Raven 1950-4-16 1802 San Mateo San Bruno Mountain. Summit Ridge. 243 Comment
  CAS-BOT-BC47946  Ceanothus arboreus George Oberlander 1950-4-2 588 San Mateo San Andreas Dam Comment
  JROH3518  Ceanothus cuneatus var. cuneatus L. R. Abrams 1914-3-1 5057 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC50042  Ceanothus incanus Walter Knight; James B. Roof 1965-5-9 1136 San Mateo Brotherhood Way - Daly City Comment
  RSA10378  Ceanothus oliganthus H. A. Barker 1926-5-1 604 San Mateo Kings Mt. Comment
  POM282997  Ceanothus oliganthus var. sorediatus Lyman Benson 1937-7-25 8467 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  UC1206472  Ceanothus oliganthus var. sorediatus Le Roy Abrams 1902-4-5 2307 San Mateo Searsville Comment
  UC311387  Ceanothus oliganthus var. sorediatus A. D. E. Elmer May 1903 4479 San Mateo Portola Comment
  RSA130954  Ceanothus papillosus Josephine Randall 1907-6-29 s.n. San Mateo Santa Cruz Peninsula, King's Mountain Road. Comment
  SEINET12209941  Ceanothus papillosus J. D. McMurphy 1906-1 13 San Mateo King's Mt., Santa Cruz Mts 457 Comment
  CAS-BOT-BC52278  Ceanothus thyrsiflorus Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Powerline Ridge Comment
  CAS-BOT-BC52303  Ceanothus thyrsiflorus Fred Hemphill 1973-4-8 664 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC52307  Ceanothus thyrsiflorus Josephine D. Randall 1907-7-23 321 San Mateo near Crystal Springs Lake Comment
  CAS-BOT-BC52309  Ceanothus thyrsiflorus Josephine D. Randall 1907-6-29 322 San Mateo Kings Mt. Comment
  CAS-BOT-BC52311  Ceanothus thyrsiflorus H. A. Borthwick 1920-4-28 s.n. San Mateo Crystal Springs Lake Comment
  SEINET12210806  Ceanothus thyrsiflorus W. Knight, Knight, I. 1982-1 4662 San Mateo Tilden Botanic Garden, Berkeley Comment
  UCSB3905  Ceanothus thyrsiflorus var. griseus Walker, Clifford 1954-4-20 San Mateo Woodside Rd. 1 mi. E. Woodside 2 Comment
  SBBG32451  Ceanothus thyrsiflorus var. thyrsiflorus L. S. Rose 1963-4-27 63004 San Mateo La Honda 121 Comment
  JROH590  Centaurea calcitrapa John H. Thomas 1974-8-3 17500 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC463564  Centaurea calcitrapa L. R. Abrams and I. L. Wiggins 1930-11-13 174 San Mateo above Crystal Springs Lake Comment
  CAS-BOT-BC274589  Centaurea calcitrapa H. L. Mason 1921-10-1 s.n. San Mateo County Hospital, Belmont-Crystal Springs Rd Comment
  CAS-BOT-BC274591  Centaurea calcitrapa A. D. E. Elmer 1903-7-1 4961 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC274592  Centaurea calcitrapa Phillip C. Wheeler 1965-6-21 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  JROH593  Centaurea calcitrapa John Hunter Thomas 1988-10-17 24602 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD30655  Centaurea calcitrapa Edith A. Purer 1933-8-13 5423 San Mateo In an open field, Santa Clara Valley, near Belmont. Comment
  SEINET11860702  Centaurea calcitrapa E. A. Purer 1933-8-13 5423 San Mateo Santa Clara Valley, near Belmont Comment
  CAS-BOT-BC277119  Centaurea melitensis George Oberlander 1950-5-6 895 San Mateo San Francisco Watershed Reserve. Near San Andreas Lake Comment
  CAS-BOT-BC277123  Centaurea melitensis A. D. E. Elmer 1903-6-1 4281 San Mateo Crystal Springs Lake Comment
  JROH606  Centaurea solstitialis John Hunter Thomas 1981-10-25 20769 San Mateo Jasper Ridge Biological Preserve, Stanford University; near main gate Comment
  JROH613  Centaurea solstitialis John Hunter Thomas 1992-7-24 25387 A San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat ramp Comment
  CAS-BOT-BC277229  Centaurea solstitialis Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  CAS-BOT-BC438778  Centaurea solstitialis Phyllis Bentley 1988-5-17 248 San Mateo Ano Nuevo State Park Comment
  JROH604  Centaurea solstitialis John Hunter Thomas 1977-6-16 18761 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET7097921  Centaurium davyi A. G. Vestal 1937-6-15 s.n. San Mateo Lat. 37 14' 13ao N, Long. 122 24' 55ao W (NAD27 converted to WGS84 decimal degrees). Pebble Beach west of Pescadero. UTM Zone 10, 551863 mE, 4121109 mN. Comment
  RSA187357  Centranthus ruber John H. Thomas 1958-11-9 7503 San Mateo Along El Camino Real at northern end of San Carlos. 30 Comment
  CAS-BOT-BC272818  Centromadia parryi subsp. parryi W. R. Dudley 1908-10-4 s.n. San Mateo Near Laguna Salada Comment
  SJSU15233  Centromadia pungens subsp. pungens Toni Corelli 2013-8-16 455 San Mateo Ravenswood Open Space Preserve, east end of Bay Road, East Palo Alto 4 Comment
  SBBG35987  Centromadia pungens subsp. pungens L. S. Rose 1965-9-20 San Mateo Burlingame, Trousdale Dr and California Drive 9 Comment
  CAS-BOT-BC384957  Cerastium arvense David D. Keck 1932-3-27 1410 San Mateo Stanford University; near the quarry on Matadero Creek Comment
  CAS-BOT-BC384960  Cerastium arvense Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mt. Reservoir Hill Comment
  CAS-BOT-BC388388  Cerastium glomeratum A. D. E. Elmer 1903-4-1 4473 San Mateo San Bruno Hills Comment
  JROH1691  Cerastium glomeratum John H. Thomas 1968-3-17 14191 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA112373  Cercocarpus betuloides James I. McMurphy 1906-4-4 18 San Mateo Los Francos Creek, Santa Cruz Mts Comment
  RSA15269  Cercocarpus betuloides Carl B. Wolf 1928-3-2 233 San Mateo On hillside above Searsville Lake, Comment
  JROH3617  Cercocarpus betuloides var. betuloides L. R. Abrams 1916-3-25 5573 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET6901192  Chenopodium album Robert A. Evers, Clara V. Evers 1975-8-24 115025 -A San Mateo Trailer Villa, Redwood City. Comment
  JROH1820  Chenopodium californicum D. E. Breedlove 1971-5-11 19334 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Pinon Road along fence Comment
  RSA195571  Chenopodium californicum John H. Thomas 1966-4-29 11585 San Mateo Jasper Ridge Biological Experimental Area, 5 miles SW of Palo Alto. Comment
  RSA181237  Chenopodium murale John H. Thomas 1963-5-20 10106 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  JROH4646  Chlorogalum pomeridianum var. pomeridianum John H. Thomas 1973-6-10 16821 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC191594  Chorizanthe cuspidata var. cuspidata A. D. E. Elmer 1903-5-1 4793 San Mateo San Pedro Comment
  JEPS57718  Chorizanthe cuspidata var. cuspidata William S. Cooper 1925-5-28 12 San Mateo Salada Comment
  RSA489244  Chorizanthe membranacea C. Rose Broome, Cristalyn M. Cagle 1978-6-17 2166 San Mateo Nacimiento - Ferguson Road 3 miles east of its junction with California Highway 1, and 4.1 miles west of Nacimiento Guard Station, Los Padres National Forest 427 Comment
  RSA130687  Chrysanthemum leucanthemum W. R. Dudley 1908-6-19 s.n. San Mateo Hills N of Jersey Farm Dairy. W of Baden Comment
  JROH2580  Cicendia quadrangularis Rimo Bacigalupi 1922-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC277887  Cirsium brevistylum David D. Keck 1934-7-7 2932 San Mateo Kings Mountain, west of summit 579 Comment
  UC91747  Cirsium brevistylum K. Brandegee 1893-5-28 San Mateo Comment
  CAS-BOT-BC285669  Cirsium occidentale var. occidentale A. D. E. Elmer 1903-6-1 4259 San Mateo Crystal Springs Lake Comment
  JROH632  Cirsium occidentale var. venustum John H. Thomas 1963-6-23 10169 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Westridge end of ridge Comment
  UC306686  Cirsium occidentale var. venustum A. D. E. Elmer 1903-6-1 4259 San Mateo Crystal Springs Lake Comment
  UC30815  Cirsium occidentale var. venustum J. Burtt Davy 1893-6-17 815 San Mateo Belmont Comment
  CAS-BOT-BC280134  Cirsium occidentale var. venustum C. F. Leitholt 1894-7-28 s.n. San Mateo Buckhorn Ranch, near Portola Comment
  UC962069  Cirsium quercetorum E. E. Gilbert 1952-5-23 San Mateo e margin of Crystal Springs Lake Crystal Springs Lake Comment
  SBBG14780  Cirsium vulgare P. H. Raven 1961-8-24 16585 San Mateo E side of Crystal Springs Lakes Comment
  JROH3040  Clarkia John Hunter Thomas 1986-6-7 24080 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA791714  Clarkia Robert F. Thorne, P. Everett 1965-8-1 35076 San Mateo 21.5 miles S of Golden Gate Bridge. 69 Comment
  RSA41290  Clarkia epilobioides Robert F. Hoover 1941-4-23 4904 San Mateo Redwood City hills Comment
  CAS-BOT-BC163378  Clarkia purpurea subsp. purpurea Phillip C. Wheeler 1965-5-25 sn. San Mateo Buckeye Canyon Comment
  CAS-BOT-BC163974  Clarkia purpurea subsp. quadrivulnera W. R. Dudley 1903-5-31 s.n. San Mateo Alpine Road, Black Mt., Santa Cruz Range Comment
  RSA448311  Clarkia purpurea subsp. quadrivulnera H. F. Copeland 1929-7-4 1250 San Mateo La Honda Grade Comment
  JROH3010  Clarkia purpurea subsp. viminea D. E. Breedlove 1971-5-31 19347 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  POM271758B  Clarkia purpurea subsp. viminea Lyman Benson 1930-5-12 2121 San Mateo Lake Searsville, Stanford University; Santa Cruz mountain range, San Francisco Bay drainage area. 152 Comment
  CAS-BOT-BC164569  Clarkia purpurea subsp. viminea W. R. Dudley 1905-6-18 s.n. San Mateo Field near Iverson's Place naer Peter's Creek Comment
  CAS-BOT-BC165157  Clarkia rubicunda Phipps 1922-7-1 s.n. San Mateo Tunitas Creek Comment
  CHSC57020  Clarkia rubicunda 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
  JEPS43647  Clarkia rubicunda J. Burtt Davy 1893-6-17 767 San Mateo Belmont Comment
  JEPS43736  Clarkia rubicunda Alice King 1908-7-25 San Mateo Moss Beach Comment
  JEPS83042  Clarkia rubicunda Roy E. Buck, Randall A. Morgan, James A. West 1983-7-15 432 San Mateo ca. 0.5 km ne Pilarcitos Dam (near crest of Cahill Ridge, w of gravel rd., overlooking Pilarcitos Lake, 7.5 km nw of the intersection of Calif. Hwys. 35 and 92); San Francisco Watershed Reserve 289 Comment
  JROH3024  Clarkia rubicunda John Hunter Thomas 1978-7-2 19244 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC107818  Clarkia rubicunda Katharine Brandegee 1905-6-20 San Mateo near Half Moon Bay; Moss Beach (Winkie's) Comment
  UC1279907  Clarkia rubicunda Peter H. Raven 1957-6-24 10969 San Mateo 0.5 mi s San Gregorio (on old coast highway) Comment
  UC625368  Clarkia rubicunda Ira L. Wiggins 1938-7-9 8933 San Mateo about 1/2 mi n Light House; Pigeon Point Comment
  CAS-BOT-BC165131  Clarkia rubicunda Carl B. Wolf 1927-6-29 566 San Mateo On the coast 3 mi. so. of San Gregorio Comment
  CAS-BOT-BC165160  Clarkia rubicunda W. R. Dudley 1905-6-19 s.n. San Mateo By road above Evans near Iverson place Comment
  SJSU11020  Clarkia rubicunda P. L. Rucker 1963-7-20 San Mateo Alpine Rd Comment
  POM271822  Clarkia rubicunda subsp. blasdalei Lyman Benson 1934-7-29 6114 San Mateo Moss Beach. Pcific Ocean watershed. 15 Comment
  CAS-BOT-BC165605  Clarkia unguiculata Kent E. Holsinger 1979-5-16 10 b San Mateo Jasper Ridge Biological Preserve; 5 mi. SW of Stanford Univ. campus, on south facing slope of Searsville Lake 109 Comment
  CAS-BOT-BC439293  Claytonia exigua subsp. exigua John H. Thomas 1974-4-11 17131 San Mateo Area to the SE of Canada Road and Edgewood Road. NW of Woodside. 152 Comment
  JROH3332  Claytonia exigua subsp. exigua John H. Thomas 1969-4-20 14895 San Mateo Jasper Ridge Biological Preserve, Stanford University 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-BC439593  Claytonia parviflora subsp. parviflora H. A. Dutton 1900-2-11 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  CAS-BOT-BC439990  Claytonia perfoliata subsp. mexicana Peter H. Raven 1951-3-12 2746 San Mateo Summit ridge San Bruno Mountains Comment
  RSA276897  Claytonia perfoliata subsp. mexicana J. M. Miller 1977-3-23 590 San Mateo Purisimo Canyon, 1.4 miles E of Hwy 1 on Purisimo Canyon Road. Comment
  JROH3344  Claytonia perfoliata subsp. perfoliata John H. Thomas 1963-5-15 10088 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3405  Clematis lasiantha John H. Thomas 1958-5-10 7160 San Mateo Jasper Ridge Biological Preserve, Stanford University. Chaparral at west end of ridge Comment
  RSA119755  Clematis lasiantha J. C. Murphy 1906-5-20 19 San Mateo Santa Cruz Mts. Comment
  JROH3423  Clematis ligusticifolia Toni Corelli 2009-8-12 354 San Mateo Jasper Ridge Biological Preserve, Stanford University; along fence along Portola Road 105 Comment
  JROH2872  Clinopodium douglasii John H. Thomas 1969-6-4 15110 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC499373  Clintonia andrewsiana W. R. Bentley 1957-5-11 80 San Mateo State Hwy 1, 2 miles below Pescadero, Alt- sea level Comment
  CAS-BOT-BC499398  Clintonia andrewsiana W. R. Dudley 1893-5-27 s.n. San Mateo Between Woodside and Summit Springs Comment
  CAS-BOT-BC499405  Clintonia andrewsiana David D. Keck 1932-6-1 1797 San Mateo 1 mile west of Skyline Blvd. on La Honda road, Santa Cruz Mountains Comment
  RSA15294  Clintonia andrewsiana Carl B. Wolf 1927-4-3 263 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  RSA377075  Clintonia andrewsiana D. D. Keck 1932-6-1 1797 San Mateo One mile west of Skyline Blvd on La Honda Road, Santa Cruz Mtns. Comment
  SEINET12044200  Clintonia andrewsiana D. D. Keck 1932-1 1797 San Mateo 1 mi W of Skyline Blvd. on La Honda Rd, Santa Cruz Mts Comment
  CAS-BOT-BC240923  Collinsia multicolor A. A. Heller 1907-4-25 8463 San Mateo San Bruno Hills Comment
  CAS-BOT-BC240928  Collinsia multicolor Reed C. Rollins 1941-3-22 2953 San Mateo San Bruno Hills, 2 miles southeast of Daly City Comment
  JROH4020  Collinsia sparsiflora var. collina Kent E. Holsinger 1981-4-15 342 San Mateo Jasper Ridge Biological Preserve, Stanford University; at the junction of the road to the green shack and the trail up from San Francisquito Creek 160 Comment
  POM132599  Conioselinum gmelinii A. D. E. Elmer 1900-04 2289 San Mateo San Bruno Mountain Comment
  JROH211  Conium maculatum John H. Thomas 1975-6-5 17927 San Mateo Jasper Ridge Biological Preserve, Stanford University; near lowflow crossing Comment
  JROH216  Conium maculatum John Hunter Thomas 1981-6-4 20673 San Mateo Jasper Ridge Biological Preserve, Stanford University; near lake Comment
  SEINET3407326 Image available Convolvulus subacaulis Lewis S. Rose 1932-5-13 32248 A San Mateo Open fields, woodside, San Mateo County, California. Comment
  UC72234  Corallorhiza maculata Milo S. Baker 1904-5-15 San Mateo near Burlingame Comment
  JEPS64357  Corallorhiza striata W. L. Jepson 1922-3-19 9539 San Mateo Lake San Andreas Vicinity of San Francisco Bay 182 Comment
  POM88156  Cordylanthus maritimus subsp. palustris L. R. Abrams 1900-10 1031 San Mateo Cooley's Landing Comment
  JEPS4612  Cordylanthus pilosus subsp. pilosus L. S. Rose 1941-8-9 41362 San Mateo Woodside 60 Comment
  POM263616  Cordylanthus pilosus subsp. pilosus L. S. Rose 1941-8-9 41362 San Mateo Woodside. 60 Comment
  RSA181266  Cordylanthus pilosus subsp. pilosus John H. Thomas 1958-8-1 7377 San Mateo Between Searsville and Skyline. Comment
  JEPS80892  Cordylanthus rigidus subsp. rigidus Monty Knudsen 1981-8-13 San Mateo Edgewood Park w of Redwood City; Edgewood Park Comment
  JROH5812  Cordylanthus rigidus subsp. rigidus A. Lambrecht, R. Reynolds, A. Cummings 2016-8-23 50 San Mateo Trail 9 near upper WiFi station 199 Comment
  RSA130827  Cordylanthus rigidus subsp. rigidus W. R. Dudley 1902-9-1 s.n. San Mateo Whipple Road near Crystal Springs Lake. Comment
  CAS-BOT-BC101478  Corethrogyne filaginifolia C. F. B. 1902-5-10 810 San Mateo Crystal Springs Lake Comment
  LA205836  Corethrogyne filaginifolia D. Keck; 1932-5-25 1785 San Mateo E side of Crystal Springs Lake Comment
  CAS-BOT-BC209820  Cornus glabrata Alice Eastwood 1912-6-10 344 San Mateo Crystal Springs Comment
  RSA54182  Cornus glabrata C. B. Wolf 1931-8-20 3870 San Mateo 3 miles west of Mayfield on road to La Honda. 91 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
  SJSU128  Cornus sericea T. Merson 1933-10-4 San Mateo by Mud Lakes near Coal Mine Ridge above Corte Madera Cr Comment
  JROH1864  Cornus sericea subsp. sericea John H. Thomas 1961-5-5 9211 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below Searsville Dam 76 Comment
  UC796713  Coronopus didymus Ira L. Wiggins 1949-7-2 12198 San Mateo Pescadero Beach Comment
  NY42441  Cortaderia selloana J. B. Walker 1994-8-15 910 San Mateo N edge of town 10 Comment
  CAS-BOT-BC180366  Corylus cornuta subsp. californica W. R. Dudley 1895-2-12 s.n. San Mateo By big redwood S of Hooper Place, upper San Francisquito Creek. Santa Cruz Peninsula 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
  JROH1334  Corylus cornuta subsp. californica John H. Thomas 1974-5-3 17246 San Mateo Jasper Ridge Biological Preserve, Stanford University; in redwood area below dam Comment
  CAS-BOT-BC453503  Cotoneaster lacteus Elizabeth McClintock; Paul Reeberg 1988-4-26 s.n. San Mateo Colma Canyon; San Bruno Mountains Comment
  JROH3634  Cotoneaster pannosus John H. Thomas 1972-8-18 16154 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3642  Cotoneaster pannosus John Hunter Thomas 1983-4-28 21777 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near green shack Comment
  SEINET7876342 Image available Cotoneaster pannosus A. T. Whittemore 2001-1 01 -012 San Mateo Garden of 418 Hillway Drive., Redwood City 98 Comment
  CAS-BOT-BC287305  Cotula australis Walter & Irja Knight 1965-2-28 874 San Mateo San Bruno Mt. Ridge 0.25 mile E parking lot Comment
  UCR141420  Cotula coronopifolia June Latting 1975-6-8 s.n. San Mateo Central Coast, slough across from Pescadero dump (on Bean Hollow Rd.), west of Pescadero 9 Comment
  CAS-BOT-BC291464  Cotula coronopifolia John H. Thomas 1966-5-13 116112 San Mateo Near Palo Alto Yacht Harbor Comment
  CAS-BOT-BC291469  Cotula coronopifolia Elmer I. Applegate 1895-3-9 293 San Mateo Field near Woodside Comment
  CAS-BOT-BC427830  Crassula connata John H. Thomas 1958-2-15 6991 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 182 Comment
  JEPS125947  Crataegus monogyna D. W. Taylor 2000-8-1 17538 San Mateo Montara Mountain: Scarper Peak, western slope of the pek near the summit. Comment
  JROH3653  Crataegus monogyna John H. Thomas 1967-6-1 12972 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3658  Crataegus monogyna Carol Zabel 1989-4-19 10 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near lake, south side. Half way between Trail 13 causeway bridge and old middle lake boat landing. Comment
  JROH3662  Crataegus monogyna John Hunter Thomas 1992-5-19 25339 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS100484  Crocosmia X crocosmiiflora Dean Wm. Taylor, Shelia Byrne 2000-8-1 17540 San Mateo western slope near summit of Scarper Peak; Santa Cruz Mountains, Montara Mountain 502 Comment
  CAS-BOT-BC190052  Crypsis schoenoides George Oberlander 1949-7-30 340 San Mateo San Francisco Watershed Reserve. Near south boundary. Comment
  JROH4981  Crypsis schoenoides John Hunter Thomas 1980-11-27 20193 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta Comment
  JROH4989  Crypsis schoenoides John Hunter Thomas 1982-11-6 21210 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake near Searsville Lab Comment
  JROH1358  Cryptantha flaccida Robert Robertson 1954-4-23 92 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC78495  Cryptantha flaccida C. F. Baker 1902-4-6 468 San Mateo Crystal Springs Lake Comment
  JROH1367  Cryptantha micromeres John Rawlings 2009-5-7 1066 San Mateo Jasper Ridge Biological Preserve, Stanford University. North edge of Trail 11. 136 Comment
  JEPS27362  Cryptantha microstachys Rimo Bacigalupi with Jim Roof and L. Heckard 1961-4-24 7622 San Mateo on Guadalupe Valley side of San Bruno Mt. (ridge below & s.e. of end of paved ridge-top rd. just e. of KRON t.v. tower & station) 304 Comment
  JROH1383  Cryptantha microstachys John Rawlings 2012-5-25 1107 San Mateo Jasper Ridge Biological Preserve, Stanford University. Up-slope along Trail b. 142 Comment
  JROH5670  Cryptantha microstachys John Rawlings 2015-5-7 1264 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Rd E south side of Big Inlet. 117 Comment
  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-BC80652  Cupressus goveniana Harry A. Dutton 1949-9-1 s.n. San Mateo Butano Ridge between Pescadero and Butano Creeks, Santa Cruz Mountains. Comment
  CAS-BOT-BC80655  Cupressus goveniana Hubert Jenkins 1903-7-27 s.n. San Mateo Butano Creek Comment
  CAS-BOT-BC224413  Cuscuta californica Josephine D. Randall 1907-7-23 107 San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  UCR143006  Cuscuta salina Edith A. Purer 1933-8-13 5408 San Mateo San Francisco Bay Region, near Baden Station 12 Comment
  CDA5324  Cyclospermum leptophyllum C. M. Sill 1970-7-17 San Mateo Mrs. G. Yuki, 439 Alameda, Redwood City. 0 Comment
  CAS-BOT-BC287336  Cynara cardunculus John Thomas Howell 1956-11-14 31961 San Mateo Bayshore Highway just S of Main St, Redwood City Comment
  JEPS22116  Cynara cardunculus subsp. cardunculus J. H. Thomas 1958-10-21 7487 San Mateo near intersection of Bayshore Highway and Main Street; Redwood City Comment
  JEPS68165  Cynoglossum grande Elsa Kraeger 1926-2-21 San Mateo along roadside near La Honda Comment
  JROH1395  Cynoglossum grande John Hunter Thomas 1988-4-7 24384 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176667  Cynoglossum grande P. H. Raven 1964-2-16 18744 San Mateo Just south of Lake San Andreas. Comment
  SD16063  Cynoglossum grande Jane T. Turner 1933-4-19 3719 San Mateo Near Emerald Lake Comment
  UC1206465  Cynoglossum grande Le Roy Abrams 1902-4-6 2317 San Mateo Searsville Comment
  CDA40497  Cynoglossum grande T. C. Fuller 1960-4-2 4083 San Mateo La Honda Rd., 0.4 mile north of La Honda. 0 Comment
  JROH5010  Cynosurus echinatus John Hunter Thomas 1986-6-17 24099 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4377  Cyperus eragrostis John Hunter Thomas 1977-6-16 18806 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta in Searsville Lake. Comment
  HSC23970  Cyperus eragrostis Mary Katherine Wicksten 1971-7-13 170 San Mateo Huddart Park by drinking fountain Comment
  HSC7212  Cyperus eragrostis L. S. Rose 1965-9-20 65107 San Mateo Burlingame, Trousdale Dr. and California Dr. 9 Comment
  JROH4393  Cyperus erythrorhizos John H. Thomas 1978-9-24 19339 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Searsville Lake. Comment
  CAS-BOT-BC133772  Cypripedium fasciculatum Mrs. C. S. Jordan 1915-4-1 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  SEINET5546172  Cypselea humifusa H. S. Gentry 1931-1 72 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  JROH21  Cystopteris fragilis Lawrence J. Winship 1974-11-16 20 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH5024  Dactylis glomerata John Hunter Thomas 1985-5-21 23665 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near bridge Comment
  SJSU15434  Dactylis glomerata Toni Corelli 2010-5-17 674 San Mateo Pescadero State Beach and Marsh Natural Preserve, south of north parking lot 6 Comment
  CAS-BOT-BC192227  Danthonia californica Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Crocker Hills Comment
  CAS-BOT-BC192231  Danthonia californica Ira L. Wiggins 1929-5-10 3673 San Mateo At Pigeon Point Comment
  CAS-BOT-BC192232  Danthonia californica David D. Keck 1932-5-6 1479 San Mateo Just west of Millbrae Highlands 50 Comment
  JROH5040  Danthonia californica John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD60456  Danthonia californica Beecher Crampton 1962-6-11 6503 San Mateo Sharp Park, suburb of Pacifica Mori's Point Road, west of State Hwy. 1. Comment
  RSA580827  Danthonia californica var. americana D. D. Keck 1932-5-6 1479 San Mateo Open hillside just west of Millbrae Highlands. 50 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
  JROH1907  Datisca glomerata John Hunter Thomas 1991-11-21 25104 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing of San Francisquito Creek Comment
  UCD127385  Daucus carota Rimo Bacigalupi; G. Thomas Robbins 1955-8-4 5444 San Mateo along grade on Highway No. 1, just south of Pedro Valley. Comment
  JEPS44412  Deinandra corymbosa Lewis S. Rose 1965-9-4 65100 San Mateo Skyline Blvd and Half Moon Bay Road; Cahill Ridge 243 Comment
  UC2046132  Deinandra corymbosa Neal Kramer with Tom Mahony 2015-6-12 2150 San Mateo Redondo Bluffs, Half Moon Bay Comment
  CAS-BOT-BC299206  Deinandra corymbosa subsp. corymbosa W. R. Dudley 1897-10-11 s.n. San Mateo Near Half Moon Bay (Spanishtown) Comment
  CAS-BOT-BC299217  Deinandra corymbosa subsp. corymbosa H. D. Geis 1901-10-1 s.n. San Mateo Spanishtown Comment
  CAS-BOT-BC299226  Deinandra corymbosa subsp. corymbosa Phillip C. Wheeler 1965-8-16 s.n. San Mateo Colma Canyon, San Bruno Mountain Comment
  UC9238  Delphinium Alice Eastwood May 1896 San Mateo Crystal Springs Comment
  UCD95637  Delphinium californicum Lewis S. Rose 1965-5-3 65058 San Mateo San Bruno Mountain, Colma Canyon. 60 Comment
  JROH3428  Delphinium californicum subsp. californicum John H. Thomas 1969-5-28 15080 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3435  Delphinium californicum subsp. californicum John Hunter Thomas 1977-6-16 18771 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3441  Delphinium californicum subsp. californicum John Hunter Thomas 1989-5-11 24730 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along road near and below dam Comment
  CAS-BOT-BC9211  Delphinium californicum subsp. californicum J. H. Thomas 1960-6-1 8772 San Mateo Near dam along edge of Searsville Lake Comment
  CAS-BOT-BC10288  Delphinium hesperium Alice Eastwood 1912-6-10 320 San Mateo Crystal Springs Comment
  UCSB11751  Delphinium hesperium Olson, Jim 1962-4-17 San Mateo 10 miles southeast of Halfmoon Bay; on Canada Road 45 Comment
  JROH3449  Delphinium hesperium subsp. hesperium John Hunter Thomas 1983-6-2 22330 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC9872  Delphinium nudicaule David Daniels Keck 1934-7-7 2928 San Mateo Kings Mountain, west of summit. 609 Comment
  POM270660  Delphinium patens Lyman Benson 1928-4-21 595 San Mateo Stanford University, Mt. Range: Santa Cruz; River: San Francisquito Creek. 91 Comment
  JROH3461  Delphinium patens subsp. patens John Hunter Thomas 1991-4-11 24987 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5730  Delphinium patens subsp. patens John Rawlings 2013-4-11 1199 San Mateo Jasper Ridge Biological Preserve, Stanford University. Northwest side of small drainage upstream from the upper bridge on Trail 11. 134 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-BC7893  Delphinium variegatum C. F. Baker 1902-4-6 458 San Mateo Crystal Springs Lake Comment
  UC9239  Delphinium variegatum J. Burtt Davy 1895-4-20 1067 San Mateo Crystal Springs Lake Comment
  SEINET12099656  Delphinium variegatum M. T. Doutt 1931-1 s.n. San Mateo Skyline Blvd, W of Hillbrae Comment
  SJSU3145  Delphinium variegatum W. A. Dout 1957-5-10 20 San Mateo Emerald L district of Redwood City Comment
  SEINET13094860  Delphinium variegatum f. superbum David D. Keck 1933-5-11 2309 San Mateo Crystal Springs Lake, on open slopes about east side of lake. Comment
  SEINET10536059 Image available Delphinium variegatum subsp. apiculatum David D. Keck 1933-5-11 Keck 2309 San Mateo Crystal Springs Lake. Common on rocky ground on open slopes about east side of lake. Comment
  SBBG33499  Delphinium variegatum subsp. variegatum A. D. E. Elmer -May-1903 4796 San Mateo Crystal Springs Lake Comment
  UC203054  Delphinium variegatum subsp. variegatum A. D. E. Elmer May 1903 4796 San Mateo Crystal Springs Lake Comment
  POM176883  Dendromecon rigida Roxana S. Ferris 1920-4-26 1954 San Mateo Slopes above Peters Creek, Santa Cruz Mountain Peninsula 610 Comment
  JEPS71181  Deschampsia cespitosa subsp. holciformis unknown 1919-7-22 209 San Mateo Laguna de los Frijoles Comment
  JROH5060  Deschampsia elongata John H. Thomas 1973-6-15 16844 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR51654  Dicentra formosa 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-BC706  Dicentra formosa subsp. formosa Walter Knight; Irja Knight 1965-4-11 1024 San Mateo Guadalupe Road near big rock at Guadalupe Creek. Comment
  CAS-BOT-BC500927  Dichelostemma capitatum Ned Cahill 1974-4-18 128 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC500931  Dichelostemma capitatum Walter & Irja Knight 1965-3-28 1023 San Mateo Plants of San Bruno Mountain, Devil's Arroyo Comment
  CAS-BOT-BC500932  Dichelostemma capitatum Javier Penalosa 1963-2-23 2661 San Mateo San Bruno Mtn. Ravine south of Crocker Ave. 182 Comment
  SBBG39530  Dichelostemma capitatum subsp. capitatum L. S. Rose 1970-4-8 San Mateo Black Mtn, W of San Mateo 121 Comment
  SEINET12044675  Dichelostemma congestum G. C. Kimber, Roush, L. 1920-1 s.n. San Mateo Coal Mine Ridge Comment
  JROH4666  Dichelostemma multiflorum Ruth Porter 1999-5-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. North side of Road B Comment
  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
  CAS-BOT-BC150443  Diplacus aurantiacus J. F. Emmel 1970-2-22 256 San Mateo 0.3 air mile SE of 1314 summit, on NE slope of San Bruno Mt. Comment
  SEINET8390048  Diplacus aurantiacus Wesley Griesel 1963-6-20 814 San Mateo road from Palo Alto to State Hwy #5. 457 Comment
  RSA128879  Dipsacus sativus P. H. Raven 1950-6-3 s.n. San Mateo along Millbrae Ave., Millbrae. 61 Comment
  CAS-BOT-BC121864  Dirca occidentalis J. H. Thomas 1962-3-24 9840 San Mateo Isenberg Ranch near Langley Hill 548 Comment
  CAS-BOT-BC121869  Dirca occidentalis Dennis E. Breedlove 1964-2-7 5916 San Mateo In San Andreas Canyon below the dam. Comment
  JROH4210  Dirca occidentalis John Hunter Thomas 1981-2-14 20227 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG39502  Dirca occidentalis L. S. Rose 1970-1-30 70002 San Mateo 1 mi SE of San Andreas Lake; Santa Cruz Mts 304 Comment
  SEINET10776855 Image available Dirca occidentalis John H. Thomas 1958-2-15 Thomas 6980 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  SEINET10776854 Image available Dirca occidentalis Lewis S. Rose 1939-4-12 Rose 39060 San Mateo Crystal Springs Lake 152 Comment
  SEINET6957401  Dirca occidentalis Lorin I. Nevling 1996-2-16 346 San Mateo San Pedro Valley Park, Brooks Creek Trail in view of Brooks Falls. "Western Leatherwood." Comment
  JEPS61823  Disporum hookeri Lucille Roush 1928-3-11 San Mateo Butano Creek Comment
  UC961171  Disporum hookeri G. H. Ward 1950-4-8 949 San Mateo 1 mi n of La Honda Comment
  RSA176414  Disporum hookeri var. hookeri John H. Thomas 1964-4-19 10328 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Area below dam. Comment
  JEPS61835  Disporum smithii Lucille Roush 1928-3-11 San Mateo Butano Creek Comment
  JROH3376  Dodecatheon clevelandii subsp. patulum Ellen Searby 1955-4-1 78 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1508  Draba verna John Hunter Thomas 1981-4-4 20256 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam in road Comment
  CAS-BOT-BC435208  Drosanthemum floribundum Dr. Barton W. Evermann 1924-6-22 s.n. San Mateo Ano [Ano] Nuevo Island Comment
  CAS-BOT-BC389714  Drymocallis glandulosa Sharon Rogers 1966-4-23 s.n. San Mateo Area in Crystal Springs watershed, between North and South Gates of Filoli Estate Comment
  CAS-BOT-BC159503  Drymocallis glandulosa var. glandulosa Elizabeth McClintock 1963-6-9 s.n. San Mateo Exposed slopes below top of mountain - San Bruno Mountain Comment
  CAS-BOT-BC67891  Dryopteris arguta Fred Hemphill 1973-3-17 801 San Mateo San Carlos - north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH27  Dryopteris arguta John H. Thomas 1974-10-12 17623 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH33  Dryopteris arguta John H. Thomas 1976-11-5 18433 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  CAS-BOT-BC410870  Dudleya caespitosa George Oberlander 1950-6-3 1036 San Mateo San Andreas Valley Comment
  CAS-BOT-BC428361  Dudleya farinosa L. R. Abrams 1909-8-2 4272 San Mateo At Pescadero Comment
  JROH1807  Dysphania ambrosioides John H. Thomas 1964-10-2 10514 a San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH1814  Dysphania ambrosioides John Hunter Thomas 1979-9-9 19719 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC208921  Echinochloa crus-galli Ira L. Wiggins 1980-8-29 22266 San Mateo Bed of San Francisquito Creek, ca 240 m upstream from Pope Street Bridge, Manlo [Menlo] Park Comment
  CAS-BOT-BC208922  Echinochloa crus-galli George Oberlander 1949-9-25 393 San Mateo Upper Crystal Spr. Lake, San Francisco Watershed Reserve Comment
  JROH5085  Echinochloa crus-galli John H. Thomas 1974-10-29 17652 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  JROH5093  Echinochloa crus-galli John Hunter Thomas 1982-7-2 21059 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing. Comment
  JROH5098  Echinochloa crus-galli Ann Lambrecht 2006-8-23 44 San Mateo Jasper Ridge Biological Preserve, Stanford University; dry bed of San Francisquito Creek below Dennis Martin marker 71 Comment
  JROH4306  Echinodorus berteroi John Hunter Thomas 1979-9-9 19723 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of Searsville Lake Comment
  HSC94173  Echium lusitanicum Gordon Leppig 2000-5-24 1384 San Mateo Hwy. 101 between Montara and Linda Mar Comment
  UCD61202  Ehrharta erecta Robert E. Preston 2004-6-10 2252 San Mateo Ca. 8 mi NW of Boulder Creek, in Pescadero Creek watershed. 234 Comment
  JROH1914  Elatine John Hunter Thomas 1984-4-8 23276 San Mateo Jasper Ridge Biological Preserve, Stanford University 166 Comment
  JROH5116  Elymus X hansenii Toni Corelli 2005-6-1 290 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 11 before Trail 9. 112 Comment
  UCR132239  Elymus glaucus Beecher Crampton 1962-6-11 6497 San Mateo San Francisco Peninsula, northern city limits of Pacifica along Calif. Hwy 1, just southwest of its junction with Skyline Boulevard 61 Comment
  CAS-BOT-BC203690  Elymus glaucus subsp. glaucus Margaret A. Barry 1937-6-22 178 San Mateo Coal Mine Ridge Comment
  JROH5122  Elymus multisetus John H. Thomas 1975-5-26 17910 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5127  Elymus multisetus John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1537613  Epilobium brachycarpum Gordon H. True 1937-7-23 804 San Mateo along Skyline-Salada Beach Rd 60 Comment
  UC873502  Epilobium brachycarpum Roxana Stinchfield 1915-10-14 261 San Mateo Cedro Villa Stanford University Comment
  RSA184928  Epilobium brachycarpum L. S. Rose 1966-8-6 66077 San Mateo San Bruno Mountain, head of Colma Canyon 213 Comment
  RSA18504  Epilobium brachycarpum Carl B. Wolf 1927-7-14 616 San Mateo Summit of Kings Mountain Rd. Comment
  SEINET12641003  Epilobium canum E. Crawford 1982-1 s.n. San Mateo Beside highway 1, up cliff from Pomponio Beach. 37 Comment
  JROH3060  Epilobium ciliatum subsp. ciliatum John Hunter Thomas 1981-7-12 20694 San Mateo Jasper Ridge Biological Preserve, Stanford University; growing at boat dock Comment
  UC1191717  Epilobium ciliatum subsp. watsonii Malcolm A. Nobs and S. Galen Smith 1949-8-25 1548 San Mateo marshes Sharp Park Comment
  UCR121575  Epilobium ciliatum subsp. watsonii George K. Helmkamp, E. A. Helmkamp 1999-6-28 5007 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  UC35409  Epilobium foliosum E. R. Drew 1888-4-12 San Mateo San Pedro Ranch Comment
  JEPS79604  Equisetum arvense Edward Lee and Ann Johnson 1974-8-24 San Mateo near Pillar Point (Princeton Marsh) Comment
  CAS-BOT-BC57181  Equisetum hyemale subsp. affine Roxana S. Ferris 1921-3-20 2113 San Mateo Pescadero Creek Comment
  CAS-BOT-BC57611  Equisetum telmateia James McMurphy 1902-4-22 s.n. San Mateo Mt. above Portola Comment
  UC311544  Equisetum telmateia subsp. braunii A. D. E. Elmer March, 1903 4501 San Mateo Portola Comment
  POM281823  Equisetum telmateia var. braunii Lyman Benson 1930-5-3 2106 San Mateo Above Woodside, Mt. Range: Santa Cruz 244 Comment
  POM25737  Equisetum telmateia var. braunii A. D. E. Elmer 1903-05 4602 San Mateo Cemeteries. Comment
  RSA0051549  Equisetum telmateia var. braunii W. M. Arbaugh 1968-4-10 256 San Mateo Butano State Park. Comment
  CAS-BOT-BC299883  Erechtites glomeratus Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  RSA128463  Erechtites glomeratus Peter H. Raven 1950-6-3 2219 San Mateo Weed along Millbrae Ave, Millbrae. 61 Comment
  UCD131896  Erigeron floribundus John Thomas Howell 1975-9-25 51508 San Mateo San Bruno Mountain. 396 Comment
  JROH5587  Erigeron foliosus var. foliosus Winkie Lennihan 1989-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; north of Hillside Lab just south of Trail 7 152 Comment
  CAS-BOT-BC295083  Erigeron glaucus Robert Robertson 1954-5-1 123 San Mateo Pebble Beach 12 Comment
  UC1536738  Erigeron glaucus G. H. True Jr. 1936-6-7 482 San Mateo top of seaside bluff at cove 2 mi s of Pescadero 15 Comment
  CAS-BOT-BC295075  Erigeron glaucus Daniel Cohen 1953-5-9 91 San Mateo Between Pescadero and San Gregorio Comment
  POM289038  Erigeron glaucus Lyman Benson 1930-6-14 2152 San Mateo San Gregorio. 30 Comment
  CAS-BOT-BC216134  Eriodictyon californicum Alice Eastwood 1912-6-10 836 San Mateo Crystal Springs Comment
  CAS-BOT-BC216249  Eriodictyon californicum George Oberlander 1949-4-30 133 San Mateo Sweeney Ridge, San Francisco Watershed Reserve Comment
  JROH2714  Eriodictyon californicum W. R. Dudley 1895-6-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; top of ridge near rocks, Searsville Comment
  JROH2720  Eriodictyon californicum Richard L. Garber 1971-5-11 14 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD38515  Eriodictyon californicum Edith A. Purer 1933-5-25 3650 San Mateo La Honda Grade Comment
  UC306559  Eriodictyon californicum A. D. E. Elmer April, 1903 4801 San Mateo Lake San Andreas Comment
  CAS-BOT-BC216244  Eriodictyon californicum Josephine D. Randall 1907-7-24 166 San Mateo Road to Crystal Springs Lake, Santa Cruz Peninsula Comment
  JROH5904  Eriodictyon californicum M. Ray 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail, west side of Searsville Dam Comment
  SEINET12271949  Eriodictyon californicum Unknown 1932-1 9151 San Mateo Comment
  CAS-BOT-BC251985  Eriogonum latifolium Louis F. Pitelka 1973-6-16 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco. On bluffs in open areas Comment
  SD38688  Eriogonum latifolium Edith A. Purer 1933-7-27 5379 San Mateo small dunes near strand, two miles south of Pigeon Point Comment
  UC1377660  Eriogonum latifolium W. J. Dress 1951-8-29 4134 San Mateo about 4.5 mi n Pigeon Point Comment
  UC77427  Eriogonum latifolium C. F. Baker 1903-6-30 3359 San Mateo Pilarcitos Comment
  UCR240612  Eriogonum latifolium T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3524 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  CAS-BOT-BC251993  Eriogonum latifolium Phipps 1922-7-1 s.n. San Mateo Tunitas Creek Comment
  POM279949  Eriogonum latifolium Lyman Benson 1930-8-15 2565 San Mateo San Gregorio. Comment
  SEINET10479506  Eriogonum latifolium Mary Susan Taylor 1978-8-30 Taylor 1870 San Mateo Comment
  UCSC007632  Eriogonum latifolium Randall Morgan 2004-7-23 4254 San Mateo Rockaway Beach Comment
  UCSC007742  Eriogonum latifolium Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  SD38964  Eriogonum luteolum Edith A. Purer 1933-8-25 5510 San Mateo Near Schullser Blvd, on hillside, Skyline Blvd. 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-BC268996  Eriogonum nudum var. auriculatum A. D. E. Elmer 1903-6-1 4311 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC269005  Eriogonum nudum var. auriculatum Lewis S. Rose 1964-9-9 64074 San Mateo Emerald Lake, w. of Redwood City 243 Comment
  RSA393325  Eriogonum nudum var. auriculatum E. A. Purer 1933-7-27 5401 San Mateo Along Bayshore Highway near Redwood City Comment
  CDA22626  Eriogonum nudum var. nudum T. C. Fuller 1967-6-13 15949 San Mateo Road to San Mateo, 0.7 mile east of Skyline Blvd., east above Crystal Springs Lake. 0 Comment
  CAS-BOT-BC304076  Eriophyllum confertiflorum Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mt. Lower slope on S side above Olivet Cemetary Comment
  RSA18308  Eriophyllum confertiflorum C. B. Wolf 1927-5-31 408 San Mateo North end of Searsville Lake. Comment
  SEINET3386802 Image available Eriophyllum confertiflorum Lewis S. Rose 1933-5-17 33176 San Mateo Redwood City. Comment
  UCSB55462  Eriophyllum confertiflorum Powell, Jerry 1972-3-10 San Mateo Mt. San Bruno Comment
  JROH697  Eriophyllum confertiflorum var. confertiflorum John H. Thomas 1967-5-31 12942 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC301255  Eriophyllum lanatum var. arachnoideum L. R. A. 1902-5-17 2472 San Mateo Kings Mountain Comment
  UC1718080  Eriophyllum lanatum var. arachnoideum John S. Mooring 1967-7-25 1225 San Mateo hwy 35 ca. 100 yards N of Bear Gulch Road Comment
  JEPS34328  Eriophyllum lanatum var. arachnoideum L. R. Heckard and Rimo Bacigalupi 1963-7-2 1334 San Mateo above summit of old country road; Montara Mt. 304 Comment
  POM204328  Eriophyllum latilobum I. L. Wiggins 1929-7-4 3785 San Mateo 4 miles 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
  POM358129  Eriophyllum staechadifolium E. A. Purer 1933-7-27 5395 San Mateo 2 miles south of Pigeon Point. Comment
  CAS-BOT-BC301974  Eriophyllum staechadifolium Alice Eastwood 1914-10-1 s.n. San Mateo Mussel Rock Comment
  UCSC007743  Eriophyllum staechadifolium Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CDA5404  Eriophyllum staechadifolium var. artemisiifolium T. R. Haig 1959-6-22 2639 San Mateo Half Moon Bay. 0 Comment
  CDA5406  Eriophyllum staechadifolium var. artemisiifolium Wm. Davis 1958-6-6 San Mateo Pedro Valley, Sharp Park. 0 Comment
  JROH2592  Erodium botrys John H. Thomas 1968-3-31 14257 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS121583  Erodium cicutarium Adam C. Schneider with C. Matt Guilliams 2013-3-9 33 San Mateo Crystal Springs Reservoir Comment
  JROH2606  Erodium cicutarium John H. Thomas 1977-5-14 18612 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG39491  Eryngium armatum L. S. Rose 1970-7-26 70076 San Mateo Hillsborough, Black Mtn, Skyline Blvd 121 Comment
  SEINET7062816  Eryngium armatum A. G. Vestal 1937-6-15 s.n. San Mateo Pebble Beach west of Pescadero. UTM Zone 10, 551765mE, 4121313mN. (WGS84/NAD83). 0 Comment
  UC1167714  Eryngium armatum Peter H. Raven 1957-6-24 10971 San Mateo Pebble Beach Comment
  UC874915  Eryngium armatum Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9296 San Mateo Ano Nuevo Point Comment
  JROH237  Eryngium jepsonii H. J. Dengler 1968-6-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; in low spot by trail in East Serpentine 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-BC54872  Erysimum franciscanum John H. Thomas 1961-5-7 9316 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC54875  Erysimum franciscanum C. F. Baker 1903-4-6 1885 San Mateo San Bruno Hills. Comment
  CAS-BOT-BC54876  Erysimum franciscanum C. F. Baker 1902-3-22 342 San Mateo Crystal Spring Lakes. Comment
  JEPS53557  Erysimum franciscanum William S. Cooper 1925-5-28 16 San Mateo Salada Comment
  LA204415  Erysimum franciscanum H. E. Parks; S. T. Parks 1930-3-10 401 San Mateo Spring Valley Lakes Comment
  UC1034950  Erysimum franciscanum G. B. Rossbach 1940-5-24 932 San Mateo exposed crest of ridge one-half to one mi se highest peak; San Bruno Hills 358 Comment
  UC10561  Erysimum franciscanum J. Burtt Davy 1895-4-20 1035 San Mateo Lake San Andreas Comment
  UC136024  Erysimum franciscanum Alice Eastwood 1903-2-8 3237 San Mateo Spring Valley Comment
  UC136093  Erysimum franciscanum C. F. Baker 1903-4-6 1885 San Mateo San Bruno Hills Comment
  PGM186  Erysimum franciscanum Vern Yadon 1968-4-5 San Mateo Pigeon Pt Lighthouse area Highway 1, Pigeon Pt Lighthouse just S of Comment
  RSA15249  Erysimum franciscanum C. B. Wolf 1927-2-19 s.n. San Mateo 1 mile from where Skyline Blvd. crosses the road to Halfmoon Bay Comment
  SD234189  Erythranthe guttata Virginia Pinkus Ryder 1964-2-21 78 San Mateo Near Davenport. 3 Comment
  JROH5683  Erythranthe microphylla John Rawlings 2015-3-15 1357 San Mateo Jasper Ridge Biological Preserve, Stanford University; rocky serpentine north side of ridge. 176 Comment
  CAS-BOT-BC403530  Eschscholzia californica Alice Eastwood 1937-7-25 18893 San Mateo Pebble Beach, Pescadero Comment
  CAS-BOT-BC403537  Eschscholzia californica A. D. E. Elmer 1903-6-1 4680 San Mateo Crystal Springs Lake 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
  CAS-BOT-BC403552  Eschscholzia californica Ned Cahill 1974-4-18 124 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CHSC1197  Eschscholzia californica L. Lancelot 1930-5-1 San Mateo Moss Beach. Comment
  CHSC22755  Eschscholzia californica Robert A. Schlising 1962-2-24 2083 San Mateo the California Coastal Ranges. Roadside, along Cabrillo Hwy (No 1) .7 mi N of county line. Comment
  JROH3098  Eschscholzia californica John H. Thomas 1975-4-5 17713 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC2049884  Eschscholzia californica H. W. Johansen 1955-4-3 1 San Mateo Jones Gulch, 5 miles S of La Honda Comment
  CAS-BOT-BC403546  Eschscholzia californica H. L. Mason 1922-4-1 s.n. San Mateo At Pigeon Point Light Comment
  CAS-BOT-BC110570  Eschscholzia crocea T. S. Brandegee May 22 s.n. San Mateo La Honda. Comment
  JROH2977  Eucalyptus globulus John H. Thomas 1980-11-18 20173 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC4303  Euonymus occidentalis J. Wendell Howe 1930-3-27 San Mateo Coast Rd. near Pigeon Point. Comment
  RSA14368  Euonymus occidentalis Elmer I. Applegate 1895-5-11 67 San Mateo Searsville road. Comment
  UC306743  Euonymus occidentalis var. occidentalis A. D. E. Elmer 1903-1 4317 San Mateo Butano Creek Comment
  SJSU15422  Euphorbia lathyris Toni Corelli 2011-8-31 715 San Mateo Pescadero State Beach and Marsh Natural Preserve, Round Hill Trail at the end of Water Lane Road 5 Comment
  UCR121567  Euphorbia lathyris George K. Helmkamp, E. A. Helmkamp 1999-6-28 4993 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  RSA18354  Euphorbia lathyris C. B. Wolf 1929-5-25 3734 San Mateo 2 miles from Pescadero on Alpine Creek. Comment
  JROH531  Eurybia radulina John Rawlings 2011-10-18 1089 San Mateo Jasper Ridge Biological Preserve, Stanford University. SW end of Road C bridge over San Francisquito Creek. 88 Comment
  SEINET5708704 Image available Euthamia occidentalis Delzie Demaree 1933-1 10531 San Mateo Leepsic Junction, Baden. Rolling bay area.; Leepsic Junction Comment
  JROH5166  Festuca arundinacea John Hunter Thomas 1988-6-2 24504 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near old bridge. Comment
  SJSU15416  Festuca arundinacea Toni Corelli 2010-5-21 672 San Mateo Pescadero State Beach and Marsh Natural Preserve. North Pond Trail 5 Comment
  JROH5727  Festuca bromoides John Rawlings 2015-3-8 1307 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 8 though chaparral. 134 Comment
  JROH5947  Festuca bromoides John Rawlings 2017-4-9 1992 San Mateo Jasper Ridge Biological Preserve, Stanford University; path from Field Station to the top of the Dam, 116 Comment
  CAS-BOT-BC278284  Festuca californica Dean Wm. Taylor 1988-4-8 9504 San Mateo Santa Cruz Mountains. 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 237 Comment
  CAS-BOT-BC278354  Festuca californica subsp. californica W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. W. of San Andreas Reservoir Comment
  RSA6292  Festuca californica var. californica D. D. Keck 1932-5-11 1499 San Mateo Above Woodside on La Honda Road, east slope of Santa Cruz Mountains Comment
  CAS-BOT-BC278472  Festuca idahoensis George Oberlander 1950-4-23 799 San Mateo San Francisco Watershed Reserve Comment
  SJSU15582  Festuca microstachys John Rawlings 2015-4-5 1453 San Mateo Along Edgewood Rd., San Mateo Co., California 146 Comment
  JROH5494  Festuca myuros Herbert Dengler 1957-4-21 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC278860  Festuca occidentalis W. R. Dudley 1898-7-1 s.n. San Mateo Pescadero Creek Comment
  JROH5962  Festuca perennis John Rawlings 2017-5-24 2082 San Mateo Jasper Ridge Biological Preserve, Stanford University. SE corner of Sun Field Station along paved vehicle road to Sun Field Station loading zone 187 Comment
  JROH5934  Festuca perennis J. Gaither 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Whiskey Hill Gate Entrance Comment
  CAS-BOT-BC279053  Festuca rubra Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  JROH5181  Festuca rubra John Rawlings 2009-5-20 1043 San Mateo Jasper Ridge Biological Preserve, Stanford University; growing 5 yards from the paved lakeside road under the canopy of a valley oak (water spigot near tree trunk) 106 Comment
  RSA86699  Festuca rubra D. D. Keck 1932-5-6 1478 San Mateo Above Millbrae Highlands Comment
  UCR253346  Foeniculum vulgare A. C. Sanders 2014-8-3 41231 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
  UCD164213  Foeniculum vulgare Peter Rubtzoff 1978-9-16 9269 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction; in upper part of East Fork Colma Creek canyon. Comment
  RSA112397  Fragaria californica W. R. Dudley 1894-7-28 s.n. San Mateo Hill between Pescadero and La Honda, San Mateo County. Comment
  SEINET3814856 Image available Fragaria californica Lewis S. Rose 1933-6-23 33251 San Mateo Kings Mountain. Comment
  CAS-BOT-BC437039  Fragaria chiloensis Walter Knight; Irja Knight 1964-4-25 688 San Mateo West of Radio Road, San Bruno Mountain Comment
  UCSB2792  Fragaria chiloensis Walker, Clifford 1954-4-29 San Mateo 50 yds from ocean, 1 mi. S of Half Moon Bay Comment
  JROH3667  Fragaria vesca John Hunter Thomas 1981-4-21 20461 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5912  Fragaria vesca L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near San Fracisquito Creek, east of the Redwood grove Comment
  CAS-BOT-BC457534  Fragaria vesca subsp. californica Alice Eastwood 1913-2-22 2454 San Mateo San Bruno Hills Comment
  CAS-BOT-BC52674  Frangula californica subsp. californica James Newman 1951-6-5 96 San Mateo Searsville Lake Comment
  JROH3552  Frangula californica subsp. californica John Hunter Thomas 1992-5-25 25346 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of chaparral on serpentine. Comment
  CAS-BOT-BC53602  Frangula californica subsp. tomentella Alice Eastwood 1922-5-30 11333 San Mateo Crystal Springs lakes Comment
  CAS-BOT-BC211604  Frankenia salina Roxana Stinchfield 1915-9-19 251 San Mateo Palo Alto, Santa Cruz Mountain Peninsula Comment
  RSA391413  Frankenia salina E. A. Purer 1933-8-13 s.n. San Mateo Belmont Comment
  SEINET11978026  Frankenia salina E. A. Purer 1933-1 5415 San Mateo Belmont Comment
  CAS-BOT-BC223555  Fraxinus latifolia W. R. Dudley 1894-10-24 s.n. San Mateo Santa Cruz Peninsula. Near San Francisquito Creek Comment
  CAS-BOT-BC130119  Fritillaria affinis L. S. Rose 1927-3-24 s.n. San Mateo Crystal Springs Lakes Comment
  UC143429  Fritillaria affinis C. F. Baker 1902-3-30 430 San Mateo Crystal Springs Lake; Pacific Coast, Crystal Springs Lake Comment
  CAS-BOT-BC130123  Fritillaria affinis D. D. Davis 1903-5-2 s.n. San Mateo Near La Honda Comment
  RSA15286  Fritillaria affinis Carl B. Wolf 1927-4-3 254 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  SEINET8501280 Image available Fritillaria affinis L. M. Henry, M. E. Springer 1946-7-21 371 San Mateo La Honda Comment
  UCSB18941  Fritillaria affinis Muirhead, M. 1964-4-17 San Mateo Crocker Estate, Hillsborough, California 91 Comment
  JEPS4953  Fritillaria biflora var. ineziana Inez Smith 1914-3-12 San Mateo Hillsboro Comment
  SDSU20659  Fritillaria liliacea Sean Ryan 2011-3-18 76 San Mateo 65 yds S of Point Reyes-Petaluma Rd. approx. 0.66 mi W of its intersection with Nicasio Valley Rd. Nicasio Reservoir. 65 Comment
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Sep 10 2014
  SEINET12044983  Fritillaria liliacea L. S. Rose 1933-1 33049 San Mateo Redwood City Comment
  UCD165021  Galium aparine Peter Rubtzoff; Roman Gankin 1975-5-21 7966 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC183624  Galium aparine Peter Rubtzoff 1977-4-14 8939 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  RSA130695  Galium californicum subsp. californicum W. R. Dudley 1906-10-3 s.n. San Mateo Opposite side of Pescadero Creek from [Gruerson's?] old house. Comment
  JROH3812  Galium porrigens var. porrigens John Hunter Thomas 1981-5-25 20619 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
  JROH795  Gamochaeta ustulata John Hunter Thomas 1981-5-8 20550 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JROH803  Gamochaeta ustulata John Hunter Thomas 1987-5-5 24245 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM204331  Gamochaeta ustulata I. L. Wiggins 1929-7-4 3772 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  UC1118537  Gamochaeta ustulata H. S. Yates 1935-5-8 5219 San Mateo 2 mi sw Pescadero; Santa Cruz Quadrangle Comment
  CAS-BOT-BC194564  Garrya elliptica Margaret A. Barry 1938-1-23 222 San Mateo Northeast side of Coal Mine Ridge Comment
  UC1122630  Garrya elliptica C. R. Clar 1928-9-17 3 San Mateo s of Lake Pilarcitos; San Mateo Quad. 274 Comment
  JROH5189  Gastridium phleoides John Hunter Thomas 1982-6-7 21023 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC59637  Gaultheria shallon Atkinson 1902-11-1 s.n. San Mateo Kings Mts. Comment
  CAS-BOT-BC59639  Gaultheria shallon Herbert L. Mason 1920-6-25 s.n. San Mateo Pescadero Cr. Comment
  POM226889  Gaura sinuata L. R. Abrams 1935-06 13687 San Mateo Field near junction of Los Troncos and San Francisquito creeks Comment
  RSA405456  Genista maderensis Glenn A. Gorelick 1967-4-20 s.n. San Mateo Overlooking Daly City, near San Francisco. Comment
  JROH2004  Genista monspessulana John Hunter Thomas 1984-4-24 23298 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Sand Hill Road fence Comment
  JROH2017  Genista monspessulana John Hunter Thomas 1986-5-8 24023 San Mateo Jasper Ridge Biological Preserve, Stanford University; near smaller part to Searsville Lake Comment
  RSA0028369  Geranium carolinianum W. R. Dudley 1898-4-24 s.n. San Mateo Field near Corte de Madera Bridge. Comment
  JROH2610  Geranium dissectum John H. Thomas 1966-4-24 11577 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR121492  Geranium dissectum George K. Helmkamp, E. A. Helmkamp 1999-6-28 4956 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
  UCR122631  Geranium dissectum George K. Helmkamp, E. A. Helmkamp 2001-6-2 6767 San Mateo Central Coast, Pillar Point Harbor, about 4 miles north of Half Moon Bay 6 Comment
  UCR279851  Geranium dissectum Peter Rubtzoff 1976-5-22 8546 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  JROH2624  Geranium molle John H. Thomas 1956-4-7 5609 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC774606  Gilia achilleifolia subsp. achilleifolia Carl B. Wolf 1938-4-24 9401 San Mateo 1/4 mi sw San Francisquito Creek Bridge (Stanford University); , sw of San Francisquito Creek Bridge 60 Comment
  JROH3151  Gilia achilleifolia subsp. multicaulis John H. Thomas 1967-4-28 12722 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3159  Gilia achilleifolia subsp. multicaulis John Hunter Thomas 1987-4-30 24221 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Dam Comment
  SD38797  Gilia achilleifolia subsp. multicaulis E. A. Purer 1933-5-16 3638 San Mateo Alpine Road Comment
  JROH3166  Gilia clivorum John Hunter Thomas 1981-4-27 20506 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15952  Gilia clivorum John Rawlings, Ken Hickman 2016-5-26 1829 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; 25 yards down-slope from the San Francisco Watershed boundary fence 122 Comment
  UC75487  Gilia clivorum C. F. Baker Apr 1903 1930 San Mateo Crystal Springs Lake Comment
  UCSC008259  Gilia clivorum Randall Morgan 1987-4-29 s.n. San Mateo 1st big canyon at Devil's Slide Comment
  SEINET3869111  Ginkgo biloba Bill Popin 1988-10-9 44 San Mateo Central Park.; 0 Comment
  JROH2026  Glycyrrhiza lepidota John Hunter Thomas 1983-7-7 22819 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5826  Glycyrrhiza lepidota Ann Lambrecht 2011-12-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; north bank of San Francisquito Cr. near water's edge 83 Comment
  RSA195655  Gnaphalium ramosissimum John H. Thomas 1958-8-1 7376 San Mateo Just N of mouth of San Gregorio Creek 30 Comment
  SEINET3386993 Image available Gnaphalium ramosissimum Lewis S. Rose 1935-8-13 35568 San Mateo Salada, Brushy coastal hills. 30 Comment
  RSA218004  Gnaphalium ramosissimum Walter Knight, I. Knight 1963-8-5 s.n. San Mateo Horseshoe Ridge; Plants of San Bruno Mountain. Comment
  SEINET11835917  Grindelia E. A. Purer 1933-1 5369 San Mateo Pigeon Point Comment
  SEINET11843442  Grindelia X paludosa E. A. Purer 1933-1 5414 San Mateo near Baden Station Comment
  RSA40139  Grindelia camporum L. S. Rose 1948-11-29 48243 San Mateo Mills Field. Comment
  CAS-BOT-BC304506  Grindelia hirsutula John H. Thomas 1968-10-6 14845 San Mateo Vicinity of railroad tracks and Dumbarton Bridge causeway entrance. East of Palo Alto Comment
  CAS-BOT-BC304510  Grindelia hirsutula David D. Keck 1931-9-27 1273 San Mateo Dumbarton Bridge Comment
  CAS-BOT-BC304517  Grindelia hirsutula L. R. Abrams 1909-8-2 4249 San Mateo Santa Cruz Peninsula. Pebble Beach. Pescadero Comment
  CAS-BOT-BC304526  Grindelia hirsutula Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  CAS-BOT-BC304535  Grindelia hirsutula George Oberlander 1950-7-15 1099 San Mateo San Francisco Watershed Reserve. Northern Cahill Ridge Comment
  CAS-BOT-BC304541  Grindelia hirsutula L. R. Abrams 1918-4-30 7064 San Mateo Bayshore Road, San Bruno Hills Comment
  CAS-BOT-BC304542  Grindelia hirsutula W. R. Dudley 1894-5-30 s.n. San Mateo Santa Cruz Peninsula. Near Redwood City Comment
  POM288780  Grindelia hirsutula Lyman Benson 1934-7-4 6101 San Mateo Moss Beach; Pacific Ocean watershed 15 Comment
  SJSU2215  Grindelia hirsutula W. P. Merry 1959-5-23 69 San Mateo beside Alpine Rd 7 mi W of Hwy 5 (Skyline Blvd.), Santa Cruz Mts Comment
  UC520390  Grindelia hirsutula Delzie Demaree 1933-6-23 10378 San Mateo Pigeon Point Comment
  JROH814  Grindelia hirsutula John H. Thomas 1961-6-14 9538 San Mateo Jasper Ridge Biological Preserve, Stanford University; in "parking area" at Searsville end of Lake Comment
  JROH827  Grindelia hirsutula John Hunter Thomas 1988-5-3 24442 San Mateo Jasper Ridge Biological Preserve, Stanford University; powerline draw Comment
  RSA21911  Grindelia stricta var. angustifolia L. S. Rose 1938-8-18 38229 San Mateo Brisbane 2 Comment
  RSA97498  Grindelia stricta var. platyphylla L. S. Rose 1954-8-29 54114 San Mateo Montara. Comment
  UC1132184  Hainardia cylindrica A. Hormay 1932-5-29 17 San Mateo San Bruno 1 Comment
  UC1146645  Hainardia cylindrica Freed W. Hoffman 1941-6-1 2238 San Mateo South Coast Ranges, along Bayshore Highway Bayshore Highway; South Coast Ranges, Bayshore Highway Comment
  CAS-BOT-BC309543  Helenium puberulum A. D. E. Elmer 1903-7-1 4972 San Mateo Crystal Springs Lake Comment
  UC943014  Helenium puberulum Lewis S. Rose 1949-8-10 49157 San Mateo Skyline Blvd. w Tanforan 121 Comment
  CAS-BOT-BC309534  Helenium puberulum W. R. Dudley 1895-9-15 s.n. San Mateo Santa Cruz Peninsula. El Corte Madera road Comment
  HSC23888  Helenium puberulum Mary Katherine Wicksten 1971-6-22 94 San Mateo Huddart Park; by Madrone Area, toward Miwok Shelter Comment
  HSC23988  Helenium puberulum Mary Katherine Wicksten 1971-6-22 93 San Mateo Huddart Park; by Madrone Area, toward Miwok Shelter Comment
  JROH845  Helenium puberulum Carol Zabel 1989-8-11 24 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek bank, upstream from low-flow crossing on Road C Comment
  JROH848  Helianthella californica var. californica Elmer I. Applegate 1895-5-11 264 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Comment
  HSC23781  Helianthemum scoparium Mary Katherine Wicksten 1971-6-17 63 San Mateo Huddart Park, by Werder Shelter Comment
  JROH1837  Helianthemum scoparium John H. Thomas 1969-5-28 15077 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176823  Helianthemum scoparium var. scoparium John H. Thomas 1961-5-5 9220 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. 152 Comment
  SJSU8350  Helianthus californicus J. L. Bonora 1963-10-11 San Mateo Redwood City Recreationn Center, Redwood City 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
  UC990615  Hemizonia congesta subsp. congesta James I. McMurphy 1909-6-13 San Mateo between Colma and San Bruno; Summit Comment
  CAS-BOT-BC313458  Hemizonia congesta subsp. luzulifolia Roxana Stinchfield 1915-10-14 260 San Mateo Cedro Villa, Stanford University, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC314938  Hemizonia congesta subsp. luzulifolia Cherie Wetzel 1969-6-20 886 San Mateo Near Canada College, Redwood City just off of Farm Hill Blvd. Comment
  CAS-BOT-BC314949  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1914-7-15 5140 San Mateo Crystal Springs Comment
  JEPS127874  Hemizonia congesta subsp. luzulifolia Adam C. Schneider 2013-5-17 185 San Mateo Crystal Springs Reservoir. Comment
  LA203702  Hemizonia congesta subsp. luzulifolia Lewis S. Rose; 1935-9-21 35652 San Mateo Redwood City Comment
  SBBG28541  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1914-7-15 5140 San Mateo Crystal Springs Comment
  CAS-BOT-BC314933  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1908-8-20 s.n. San Mateo Near causeway between Cr. Srp. Lakes Comment
  HSC24007  Hemizonia congesta subsp. luzulifolia Mary Katherine Wicksten 1971-7-20 180 San Mateo Huddart Park, below Redwood Shelter Comment
  JROH871  Hemizonia congesta subsp. luzulifolia John Hunter Thomas 1984-9-6 23478 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA52665  Hemizonia corymbosa subsp. corymbosa I. L. Wiggins 1949-7-2 12199 San Mateo Pescadero Beach. 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
  POM360316  Hemizonia luzulifolia E. S. Spalding 1923-8-3 s.n. San Mateo 3 miles W of Redwood City, near Pulgas Tunnel. Comment
  UC1084378  Heracleum lanatum G. Thomas Robbins 1937-4-11 75 San Mateo along Skyline Blvd. s. of San Francisco Comment
  SEINET5554255  Heracleum lanatum H. S. Gentry 1931-1 81 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  JROH248  Heracleum maximum John H. Thomas 1961-5-5 9210 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below Searsville Dam 76 Comment
  RSA172336  Heracleum maximum R. F. Thorne, P. Everett 1963-6-9 32225 San Mateo On top of San Bruno Mt. Near the TV tower 335 Comment
  RSA176771  Heracleum maximum John H. Thomas 1961-5-5 9210 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  SD148265  Heracleum maximum G. K. Helmkamp, E. A. Helmkamp 2001-6-2 6788 San Mateo Central California coast; Purissima Creek Road, east of Half Moon Bay at Purissima Creek, 3.2 miles east of California Highway 1. 244 Comment
  POM287747  Heracleum maximum Lyman Benson 1931-4-13 2710 San Mateo Behind Stanford University, bottom land at junction with Corte Madera Creek Comment
  CAS-BOT-BC310243  Hesperevax sparsiflora var. sparsiflora Margaret A. Barry 1937-5-15 126 San Mateo Coal Mine Ridge Comment
  RSA187311  Hesperocnide tenella John H. Thomas 10307 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC403870  Hesperocnide tenella James McMurphy 1906-5-14 s.n. San Mateo Above Stanford Residence, San Francisquito Creek Comment
  CAS-BOT-BC176206  Hesperolinon congestum Marion Gallagher 1978-6-1 s.n. San Mateo At Farm Hill above Redwood City Comment
  CAS-BOT-BC176210  Hesperolinon congestum L. R. Abrams 1920-6-1 7497 San Mateo Back of Redwood City Comment
  RSA112351  Hesperolinon congestum L. R. Abrams 1920-6-1 7497 San Mateo Back of Redwood City. Comment
  JROH2936  Hesperolinon micranthum John Hunter Thomas 1983-6-29 22713 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC311178  Hesperomecon linearis A. D. E. Elmer 1903-6-1 4594 San Mateo San Bruno Hills Comment
  CAS-BOT-BC148474  Heteromeles arbutifolia A. D. E. Elmer 1903-2-1 4575 San Mateo Portola Comment
  CAS-BOT-BC311097  Heterotheca oregona var. scaberrima W. R. Dudley 1896-10-11 s.n. San Mateo Santa Cruz Mountain Peninsula. On railroad track between Menlo Park and Palo Alto Comment
  JEPS125948  Heterotheca sessiliflora subsp. bolanderi D. W. Taylor 2000-7-20 17537 San Mateo Montara Mountain, on Montara State Beach, along dirt road 1 mile W from North Peak. Comment
  UC1577655  Heterotheca sessiliflora subsp. echioides N. K. Carlson 1935-6-21 77 San Mateo Ridge between Slate and Oil Creek; Santa Cruz Quadrangle Comment
  UCR70818  Heuchera micrantha var. diversifolia David D. Keck 1932-6-1 1794 San Mateo Coast Range; Santa Cruz Mtns, above Woodside on La Honda road 366 Comment
  CAS-BOT-BC420897  Heuchera micrantha var. erubescens L. S. Rose 1941-7-2 1146 San Mateo Kings Mountain 600 Comment
  CAS-BOT-BC424377  Heuchera micrantha var. hartwegii Walter & Irja Knight 1964-5-4 s.n. San Mateo Romanzoffia ravine; San Bruno Mountain Comment
  CAS-BOT-BC319638  Hieracium albiflorum Josephine D. Randall 1907-6-29 81 San Mateo Kings Mt. Road, Santa Cruz Peninsula Comment
  SBBG30746  Hierochloe occidentalis C. Bornstein 1994-6-7 San Mateo Gazos Crk Rd, 3.6 mi E of Hwy 1 Comment
  SEINET10598881  Hierochloe occidentalis Charles F. Baker 1902-1-15 Baker 247 San Mateo West side King's Mountain. About ledges and rocky places Comment
  CAS-BOT-BC55444  Hirschfeldia incana George Oberlander 1949-7-24 290 San Mateo San Francisco Watershed. Grassland about San Andreas Lake. Comment
  JROH1533  Hirschfeldia incana John Hunter Thomas 1977-6-16 18794 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5207  Holcus lanatus John H. Thomas 1973-6-15 16837 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC24044  Holodiscus discolor Mary Katherine Wicksten 1971-6-17 11 San Mateo Huddart Park. Comment
  RSA85266  Holodiscus discolor D. D. Keck 1932-6-1 1795 San Mateo Above Searsville Lake, on road between Woodside and Skyline Blvd. Santa Cruz Mountains. Comment
  CAS-BOT-BC150054  Holodiscus discolor var. discolor Margaret A. Barry 1937-6-24 180 San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC150064  Holodiscus discolor var. discolor Saichi Kawahara 1968-7-29 460 San Mateo Old Stage Road, south bank of Pomponio Creek 36 Comment
  JROH3688  Holodiscus discolor var. discolor John H. Thomas 1971-5-30 15982 San Mateo Jasper Ridge Biological Preserve, Stanford University. Woods near dam Comment
  JROH3695  Holodiscus discolor var. discolor John Hunter Thomas 1981-4-27 20500 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3700  Holodiscus discolor var. discolor John Hunter Thomas 1989-6-6 24765 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA181232  Hordeum 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
  CAS-BOT-BC284683  Hordeum brachyantherum subsp. brachyantherum John H. Thomas 1961-5-13 9341 San Mateo At Franklin Point Comment
  SJSU15413  Hordeum brachyantherum subsp. brachyantherum Toni Corelli 2010-5-21 671 San Mateo Pescadero State Beach and Marsh Natural Preserve. North Pond Trail 9 Comment
  JROH5220  Hordeum brachyantherum subsp. californicum John H. Thomas 1968-5-3 14439 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD85535  Hordeum brachyantherum subsp. californicum Lewis S. Rose 1956-5-7 56070 San Mateo Skyline Blvd. W of San Mateo. 182 Comment
  SEINET6851597  Hordeum geniculatum Robert A. Evers, Clara V. Evers 1975-8-24 115025 -B San Mateo Trailer Villa, Redwood City. Comment
  CAS-BOT-BC285149  Hordeum marinum subsp. gussoneanum P. R. Hichborn 1920-5-18 236 San Mateo Santa Cruz Mountain Peninsula. Woodside Comment
  JROH5237  Hordeum marinum subsp. gussoneanum John H. Thomas 1967-6-1 12952 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5244  Hordeum marinum subsp. gussoneanum John Hunter Thomas 1981-5-19 20606 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC289392  Hordeum murinum subsp. glaucum Paul Arnaud 1941-4-6 s.n. San Mateo Redwood City 731 Comment
  RSA138203  Hordeum murinum subsp. glaucum Paul R. Hichborn 1920-5-18 236 San Mateo Woodside; Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC289459  Hordeum murinum subsp. leporinum John H. Thomas 1962-4-24 9847 San Mateo San Bruno Mountain in northern part of county 396 Comment
  SD39730  Hordeum murinum subsp. leporinum Edith A. Purer 1933-7-27 5372 San Mateo Sand dunes, two miles south of Pigeon Point Comment
  UC1537225  Hordeum murinum subsp. leporinum Gordon H. True Jr. 1937-4-3 620 San Mateo Salada Beach Road 182 Comment
  RSA18459  Horkelia californica Carl B. Wolf 1927-6-29 548 San Mateo South of Pebble Beach near Pescadero. Comment
  CAS-BOT-BC536143  Horkelia californica L. R. Abrams 1926-5-26 11219 San Mateo San Bruno Hills near Daly City Comment
  CAS-BOT-BC536148  Horkelia californica Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo Below parking lot, San Bruno Mountain Comment
  UC162493  Horkelia cuneata subsp. sericea A. A. Heller 1906-6-8 8374 San Mateo near Ocean View; San Francisco Comment
  CAS-BOT-BC143924  Horkelia cuneata var. sericea A. D. E. Elmer 1903-4-1 5036 San Mateo Cemeteries Comment
  CAS-BOT-BC144013  Horkelia marinensis George Oberlander 1951-7-12 1204 San Mateo Clearing in San Andreas Valley, San Francisco Watershed Reserve Comment
  SEINET957356  Hosackia gracilis A. D. E. Elmer 1903-1 4860 San Mateo Lake San Andreas Comment
  SJSU2301  Hosackia gracilis C. W. Sharsmith 1950-4-16 6630 San Mateo near Pescadero Point, Pescadero Comment
  UCR253352  Hydrocotyle moschata A. C. Sanders 2014-8-3 41241 San Mateo San Francisco Bay, South San Francisco, Utah Ave. near Harbor Way, north of S.F. Intl. Airport 4 Comment
  CDA5497  Hydrocotyle moschata E. L. Labadie 1962-3-15 San Mateo Jack Fujiki property, 135 N. Idaho, San Mateo . 0 Comment
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Aug 7 2014
  CAS-BOT-BC400964  Hypericum anagalloides Carl B. Wolf 1929-5-25 3729 San Mateo Pebble Beach so. of Pescadero Comment
  CAS-BOT-BC411331  Hypericum canadense Vern Yadon 1994-7-8 s.n. San Mateo East of highway 1, common in two places, several acres. South of gazon Cr. and north of Ano Nuevo. Southern San Mateo County Comment
  UCD160244  Hypericum canariense Christopher Dillis 2015-5-15 7 San Mateo South of Pescadero on Hwy 1 (Cabrillo Hwy), 400 m south of Highway Brewing Company, then east 120 m on unmarked 1-lane dirt road; 10 m southwest of intersection with Old Coast Highway. 200 Comment
  SEINET5554861  Hypochaeris glabra H. S. Gentry 1931-1 97 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC311492  Hypochaeris radicata A. D. E. Elmer 1903-4-1 4861 San Mateo Lake San Andreas Comment
  CAS-BOT-BC311484  Hypochaeris radicata George Oberlander 1949-4-17 55 San Mateo San Francisco Watershed Reserve. On top of Sawyer Ridge Comment
  POM361225  Hypochaeris radicata E. A. Purer 1932-7-18 4005 San Mateo Half Moon Bay Comment
  UCR266160  Ilex aquifolium A. C. Sanders 2015-12-22 41886 San Mateo San Francisco Bay Region, San Bruno Mountain, Summit Loop Trail above April Brook 274 Comment
  UC1300946  Iris douglasiana Helen K. Sharsmith 1963-2-16 5146 San Mateo Summit of San Bruno Mountain; San Francisco Bay Region 396 Comment
  UC1537236  Iris douglasiana Gordon H. True Jr. 1936-4-5 392 San Mateo canyon between San Gregorio and Salada Beach 304 Comment
  RSA171165  Iris douglasiana Robert F. Thorne, Percy C. Everett 1963-6-9 32240 San Mateo On top of San Bruno Mountain. 335 Comment
  SEINET10966333  Iris douglasiana R. D. Sage 1992-1-6 Sage 13394 -2 San Mateo Collected along purisima creek rd trail in purisima creek redwoods open space preserve. 9 Km w woodside. 244 Comment
  CAS-BOT-BC133658  Iris longipetala L. R. Abrams 1919-3-20 s.n. San Mateo South San Francisco Comment
  CAS-BOT-BC133668  Iris longipetala J. H. Thomas 1954-5-28 4240 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  POM168926  Iris macrosiphon E. B. Copeland 1903-5-9 3052 San Mateo Big Basin of Pescadero Creek. Comment
  SD168142  Iris macrosiphon Phil Rundel 1963-6-11 1116 San Mateo La Honda Road. (IPB 12/07) 459 Comment
  POM168923  Iris missouriensis C. F. Baker 1902-3-22 348 San Mateo South San Francisco. Comment
  JROH4429  Iris pseudacorus J. H. Thomas 1958-5-11 7165 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of lake Comment
  CAS-BOT-BC112616  Isolepis cernua J. Clausen 1939-7-1 1745 San Mateo Ano Nuevo Point, in depressions in stabilized dunes. Comment
  CAS-BOT-BC112620  Isolepis cernua W. R. Dudley 1896-4-18 s.n. San Mateo Pebble Beach pasture, Pescadero Comment
  POM267963  Isolepis cernua Jens Clausen 1939-7-1 1745 San Mateo Ano Nuevo Point. Comment
  CAS-BOT-BC112607  Isolepis cernua Herbert L. Mason 1949-7-7 14027 San Mateo Nouth of Gazos Creek near the ocean. Southern part of county. Comment
  UCD49893  Isolepis cernua S. Galen Smith; Malcolm A. Nobs 1949-8-25 1565 San Mateo Marshes at Sharp Park, San Mateo County. Comment
  SBBG28003  Jaumea carnosa L. S. Rose 1935-8-13 San Mateo Salada Comment
  CAS-BOT-BC340138  Jaumea carnosa Walter Knight; Irja Knight 1964-9-2 718 San Mateo San Bruno Mountain. At Pt. San Bruno Comment
  CAS-BOT-BC102323  Juglans hindsii Ed Holm; Field Biol. Class, San Mateo High School 1984-7-24 s.n. San Mateo In creekbed of San Mateo Creek next to Polhemus Rd. just before it joins Crystal Springs Rd. and about 100 yds. below Comment
  UC1101045  Juncus bufonius Herbert L. Mason 1949-7-7 14028 San Mateo Mouth of Gazos Creek Comment
  UCR121569  Juncus bufonius George K. Helmkamp, E. A. Helmkamp 1999-6-28 4997 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  SEINET3877711  Juncus bufonius Kaye H. Thorne, J. Chandler 1986-7-25 4944 San Mateo Half Moon Bay, 2 mi S of Moss Beach at Dune Beach. Sand dunes and beach area adjacent to the Pacific Ocean.; 0 Comment
  SJSU15798  Juncus bufonius var. bufonius Toni Corelli 2010-6-4 678 San Mateo Cowell Ranch Beach. 33 Comment
  CDA14198  Juncus bufonius var. congestus J. Ferguson 1998-4-17 PDR 1117376 San Mateo San Francisco Bay Area; Public lawn area in Redwood City. 0 Comment
  JROH4457  Juncus bufonius var. occidentalis John H. Thomas 1955-5-6 4986 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent grassy slopes Comment
  JROH4463  Juncus bufonius var. occidentalis John H. Thomas 1968-4-19 14303 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4468  Juncus bufonius var. occidentalis John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15214  Juncus capitatus Toni Corelli 2011-4-28 700 San Mateo Ano Nuevo, Cascade Field, junction of Cascade Creek Trail and Atkinson Bluff Trail 9 Comment
  UC1601740  Juncus effusus subsp. pacificus J. Burtt Davy 1893-6-22 757 San Mateo head of Lake Pilarcitos Lake Pilarcitos Comment
  CAS-BOT-BC173814  Juncus effusus var. brunneus Peter Rubtzoff; Roman Gankin 1975-9-11 8372 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  UC1101030  Juncus hesperius Verne Grant and Herbert L. Mason 1946-8-28 13081 San Mateo n of San Francisco county prison Comment
  UC1601735  Juncus lescurii J. Burtt Davy 1893-6-22 758 San Mateo head of Lake Pilarcitos Lake Pilarcitos Comment
  CAS-BOT-BC176167  Juncus lescurii Peter Rubtzoff 1977-11-24 9145 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UCD141619  Juncus nevadensis Frank W. Gould 1939-5-6 657 San Mateo on coast Highway 13 miles north of Santa Cruz County line. 15 Comment
  JROH4487  Juncus occidentalis John Hunter Thomas 1981-5-5 20541 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4490  Juncus occidentalis John Hunter Thomas 1983-5-23 22246 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near shack side & low-flow crossing. 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
  SD260865  Juncus phaeocephalus Peter Rubtzoff 1976-6-30 8706 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. Dirt roadside near a marsh. 182 Comment
  UC1601805  Juncus phaeocephalus J. Burtt Davy 1893-6-22 756 San Mateo head of Lake Pilarcitos Lake Pilarcitos Comment
  UC2680  Juncus phaeocephalus J. Burtt Davy 1893-6-17 851 San Mateo w of Salt Marsh; Belmont Comment
  CAS-BOT-BC182762  Juncus phaeocephalus Peter Rubtzoff 1980-8-4 9561 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Westernmost part of the area on slope across fence. Comment
  CAS-BOT-BC210051  Juncus phaeocephalus Peter Rubtzoff 1978-8-17 9261 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC210052  Juncus phaeocephalus Peter Rubtzoff 1978-7-8 9228 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UCD163590  Juncus phaeocephalus var. paniculatus Peter Rubtzoff 1980-8-4 9563 San Mateo San Mateo: San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. 183 Comment
  UCR279840  Juncus phaeocephalus var. paniculatus Peter Rubtzoff 1978-8-17 9259 San Mateo San Francisco Bay Region, San Bruno Mountain; 'saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction 220 Comment
  JROH4505  Juncus xiphioides John H. Thomas 1967-6-1 12960 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5653  Juncus xiphioides John Rawlings 2014-6-10 1259 San Mateo Jasper Ridge Biological Preserve, Stanford University. Corte Madera Creek delta near open water. 104 Comment
  JROH4037  Keckiella antirrhinoides var. antirrhinoides D. E. Breedlove 1971-5-31 19363 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH5264  Koeleria macrantha John H. Thomas unspecified s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC274289  Lachnagrostis filiformis Henry E. Wieser 1932-6-4 s.n. San Mateo Black Mountain Road, Hillsborough Hills near Burlingame Comment
  UCD133509  Lactuca virosa John Thomas Howell 1954-9-8 30108 San Mateo Skyline Blvd. at San Andreas Lake, 2 miles west of San Bruno. Comment
  CAS-BOT-BC341630  Lagophylla ramosissima V. F. Hesse 1962-6-26 3153 San Mateo Alpine road, 2.6 miles west of Highway 5 457 Comment
  CAS-BOT-BC341637  Lagophylla ramosissima J. I. McMurphy 1906-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula. Near head of Crystal Springs Lakes Comment
  JROH5926  Lasthenia L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; on the high point of Jasper Ridge Comment
  CAS-BOT-BC339066  Lasthenia californica John Thomas Howell 1933-5-3 11204 San Mateo San Bruno Hills Comment
  CAS-BOT-BC339075  Lasthenia californica Margaret A. Barry 1937-5-1 37 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC339095  Lasthenia californica Kenton L. Chambers 1956-6-20 1046 San Mateo Pebble Beach near Pescadero Point Comment
  POM288356  Lasthenia californica Lyman Benson 1931-3-15 2645 San Mateo Emerald Lake; Redwood City; Mt. Range: Santa Cruz; Watershed: San Francisco Bay 152 Comment
  CAS-BOT-BC339083  Lasthenia californica W. R. Dudley 1893-5-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Millbrae 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
  UC135324  Lasthenia californica subsp. californica unknown 1903-4-6 1890 San Mateo San Bruno Hills Comment
  UC1537021  Lasthenia californica subsp. californica Gordon H. True Jr. 1936-6-7 483 San Mateo top of ocean bluff at cove 2 mi. s Pescadero 15 Comment
  UC30457  Lasthenia californica subsp. californica J. Burtt Davy 1897-4-1 San Mateo Ocean View Comment
  UC90024  Lasthenia californica subsp. californica T. S. Brandegee 1890-5-28 San Mateo San Gorgonio Comment
  CAS-BOT-BC355496  Lasthenia glaberrima R. Bacigalupi 1923-4-16 s.n. San Mateo Field near San Francisquito Creek near Stanford University Comment
  CAS-BOT-BC355547  Lasthenia glabrata var. glabrata A. D. E. Elmer 1903-5-1 4426 San Mateo Millbrae Comment
  JEPS35423  Lasthenia minor W. L. Jepson 1921-4-3 9112 San Mateo near Colma; Colma Canyon Comment
  CAS-BOT-BC368188  Lasthenia minor Kenton L. Chambers 1956-6-20 1044 San Mateo Mouth of Pescadero Creek, on bluff between Hwy. 1 and the ocean; around parking area Comment
  RSA22957  Lathyrus latifolius L. R. Abrams, I. L. Wiggins, D. Abrams 1939-6-3 421 San Mateo Roadside 3-4 miles east of San Gregorio, on La Honda Road. Comment
  POM194716  Lathyrus littoralis H. M. Hall 1924-6-17 11957 San Mateo Salada Comment
  SEINET3557952 Image available Lathyrus vestitus Lewis S. Rose 1932-5-3 32208 San Mateo San Bruno. 183 Comment
  POM19357  Lathyrus vestitus subsp. bolanderi Edward L. Greene 1902-1-15 8231 San Mateo West side Kings Mountain. Comment
  JEPS55359  Lathyrus vestitus var. vestitus W. L. Jepson 1921-4-3 9110 San Mateo Colma Canyon Comment
  UC75194  Lathyrus vestitus var. vestitus unknown 1903-4-6 1893 San Mateo San Bruno Hills Comment
  RSA176876  Lavatera cretica John H. Thomas 1964-4-30 10335 San Mateo Near intersection of El Camino Real and F St, Colma Comment
  RSA187501  Lavatera cretica John H. Thomas 1954-5-28 4241 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 30 Comment
  CAS-BOT-BC323159  Layia chrysanthemoides David D. Keck 1932-4-29 1450 San Mateo Redwood City. Comment
  CAS-BOT-BC323180  Layia chrysanthemoides K. Curran 1885-4-1 s.n. San Mateo Millbrae Comment
  UC913051  Layia gaillardioides David D. Keck 1932-6-1 1798 San Mateo 1. 5 mi ne of La Honda; Santa Cruz Mountains 213 Comment
  CAS-BOT-BC321070  Layia gaillardioides Rimo Bacigalupi 1923-4-29 s.n. San Mateo Dr. Williams' place, Old La Honda Grade near La Holda. Comment
  CAS-BOT-BC321090  Layia gaillardioides James I. McMurphy 1909-5-26 s.n. San Mateo Above La Honda Comment
  CAS-BOT-BC321117  Layia gaillardioides David D. Keck 1932-5-11 1764 San Mateo 1.5 miles NE of La Honda, Santa Cruz Mountains Comment
  UC935712  Layia gaillardioides David D. Keck 1932-5-6 1483 San Mateo w of Milbrae Highlands Skyline Boulevard; Santa Cruz Mountains Comment
  CAS-BOT-BC327482  Layia hieracioides M. S. Jussel 1931-4-18 s.n. San Mateo Colma Canyon Comment
  SD39841  Layia hieracioides Edith A. Purer 1933-7-27 5397 San Mateo Two miles south of Pigeon Point Comment
  CAS-BOT-BC327479  Layia hieracioides Walter Knight; Irja Knight 1965-4-25 1085 San Mateo San Bruno Mountain; Devil's Arroyo Comment
  RSA0036458  Layia hieracioides Peter Rubtzoff 1978-7-8 9221 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. In East Fork Colma Creek Canyon area. Comment
  CAS-BOT-BC382076  Layia platyglossa Roxana S. Ferris 1921-4-7 21030 San Mateo San Bruno Mt. 213 Comment
  CAS-BOT-BC382096  Layia platyglossa John H. Thomas 1961-5-7 9266 San Mateo San Bruno Mountainin northern part of county. 396 Comment
  JROH999  Layia platyglossa John Hunter Thomas 1980-5-8 19944 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5712167  Layia platyglossa R. E. Dengler 1960-1 11 San Mateo Jasper Ridge, Stanford Biological Reserve.; Stanford Biological Reserve 191 Comment
  JROH4535  Lemna minor John Hunter Thomas 1978-7-2 19252 San Mateo Jasper Ridge Biological Preserve, Stanford University; on dam Comment
  CAS-BOT-BC537272  Lemna minor D E Breedlove 1974-5-13 36220 San Mateo Brushy slopes San Pedro Valley Park, Pacifica 152 Comment
  CAS-BOT-BC527274  Lemna minuta Roxana S. Ferris 1920-10-1 2100 San Mateo 1st mud lake, Coal Mine Ridge, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC221534  Lepechinia calycina D. E. Breedlove 1974-5-13 36206 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  JROH2791  Lepechinia calycina D. E. Breedlove 1971-5-31 19348 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  CAS-BOT-BC89138  Lepidium didymum Walter Knight; Irja Knight 1964-5-30 105 San Mateo San Bruno Mountains. Along freeway in Colma Canyon. Comment
  CAS-BOT-BC89140  Lepidium didymum Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountains. Below parking lot. Comment
  JROH1538  Lepidium nitidum E. A. McGregor 1907-2-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC10674  Lepidium nitidum Mrs. Brandegee 1892-4-9 San Mateo South San Francisco Comment
  CAS-BOT-BC12844  Lepidium pinnatifidum Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon. Comment
  CAS-BOT-BC12948  Lepidium strictum W. R. Dudley 1894-3-27 s.n. San Mateo Santa Cruz Peninsula. In ground near Ocean Shore at Spanish town. Comment
  POM176894  Lepidium strictum Helen M. Edwards 1917-2-8 s.n. San Mateo Stanford University. Campus. Comment
  POM216309  Lepidium strictum D. D. Keck 1933-5-11 2301 San Mateo Montara Summit, Montara Mountain. Comment
  CAS-BOT-BC226538  Leptosiphon acicularis Margaret A. Barry 1937-5-1 46 San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC226598  Leptosiphon ambiguus C. F. B. 1902-5-4 753 San Mateo Woodside Comment
  CAS-BOT-BC226603  Leptosiphon ambiguus W. R. Dudley 1909-4-27 s.n. San Mateo Santa Cruz Mountain Peninsula. Whipple Rd. between Woodside and Crystal Spr. Lakes Comment
  CAS-BOT-BC226608  Leptosiphon ambiguus Arthur Spiegler 1952-4-26 27 San Mateo 4 miles from Woodside on Canada Road to Skyline Boulevard Comment
  RSA40290  Leptosiphon ambiguus L. S. Rose 1948-5-16 s.n. San Mateo Emerald Lake, west of Redwood City. 152 Comment
  POM65863  Leptosiphon androsaceus L. R. Abrams 1901-05 1569 San Mateo Woodside Comment
  RSA0063624  Leptosiphon androsaceus L. R. Abrams 1902-5-11 2445 San Mateo San Mateo Canyon. Comment
  RSA18092  Leptosiphon androsaceus C. B. Wolf 1929-4-24 3656 San Mateo south west end of Jasper Ridge, near Searsville Lake Comment
  RSA8491  Leptosiphon androsaceus L. S. Rose 1933-4-30 33135 San Mateo Redwood City Comment
  UCD14333  Leptosiphon androsaceus Marcy Dickerson 1983-4-23 110 San Mateo San Mateo Co., Jasper Ridge, Sanford Biological Preserve, within 1 mile of Westridge Road Entrance; Comment
  JROH3181  Leptosiphon bicolor John Rawlings, Ann Lambrecht 2013-4-30 1168 San Mateo Jasper Ridge Biological Preserve, Stanford University; on the verge of Rd B 75 Comment
  SEINET3861922  Leptosiphon croceus Genevieve K. Walden 2009-6-22 203 San Mateo Moss Beach State Beach, Wylvale Rd. on cliff above beach.; 0 Comment
  UC176059  Leptosiphon croceus Miss Kate Cole May 1914 San Mateo Moss Beach Comment
Read comments
Feb 8 2016
  RSA159411  Leptosiphon liniflorus John H. Thomas 1961-5-14 9380 San Mateo Serpentine road bank and outcropping just north of dam on San Mateo Creek. 122 Comment
  JROH3189  Leptosiphon parviflorus John H. Thomas 1961-4-8 9077 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD214610  Leptosiphon parviflorus Carl B. Wolf 1929-5-25 3727 San Mateo Pebble Beach so. of Pescadero Comment
  RSA0103657  Leptosiphon parviflorus H. E. Wieser 1929-05 s.n. San Mateo Pebble Beach. Coast Range. 30 Comment
  SD67317  Leptosiphon pygmaeus subsp. continentalis F. Howe 1967-4-14 San Mateo 7 miles from San Mateo on road to Half Moon Bay 399 Comment
  RSA0103658  Leptosiphon rosaceus E. B. Copeland 1903-6-6 3300 San Mateo Montara Point. Comment
  CAS-BOT-BC324057  Lessingia arachnoidea John Thomas Howell 1927-9-10 3099 San Mateo Crystal Springs Lake 213 Comment
  CAS-BOT-BC324060  Lessingia arachnoidea W. R. Dudley 1902-9-21 s.n. San Mateo East of Crystal Springs Reservoir, near fork to Alnus House, Santa Cruz Peninsula Comment
  CAS-BOT-BC324067  Lessingia arachnoidea W. R. Dudley 1896-11-15 s.n. San Mateo Near Crystal Srings Reservoir, Santa Cruz Mountains Comment
  CAS-BOT-BC324071  Lessingia arachnoidea Peter H. Raven 1957-9-1 11301 San Mateo Along State Highway 5 (Skyline Blvd.) at Woodside Road Comment
  CAS-BOT-BC325498  Lessingia arachnoidea L. R. Abrams 1902-9-2 2996 San Mateo Crystal Lake Comment
  JEPS40995  Lessingia arachnoidea Lewis S. Rose 1964-9-9 64075 San Mateo w of San Mateo; Crystal Springs Lakes Comment
  SJSU15429  Lessingia germanorum Toni Corelli 2011-9-14 720 b 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
  JROH1022  Lessingia glandulifera var. glandulifera John Hunter Thomas 1983-6-29 22714 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET7063128  Lessingia glandulifera var. pectinata A. G. Vestal 1963-7-12 s.n. San Mateo Jasper Ridge. UTM Zone 10, 568418mE, 4140415mN. (WGS84/NAD83). 174 Comment
  CAS-BOT-BC324176  Lessingia hololeuca W. R. Dudley 1897-11-15 s.n. San Mateo Los Troncos Road above Saloon Comment
  CHSC39182  Lessingia hololeuca R. N. Bowman 1984-6-29 3693 San Mateo .7 m. e of Skyline Rd. on Crystal Springs Rd. 500 Comment
  UCSB7872  Leucanthemum vulgare Myrick, Donald 1966-6-11 San Mateo Along Highway #1 near Pescadero Comment
  UCD64550  Leymus condensatus David L. Morgan 1955-8-1 San Mateo Lower San Mateo County: 1 mile N of Santa Cruz county line on Hwy 1. 22 Comment
  CAS-BOT-BC272186  Leymus triticoides Paul Reeberg 1988-10-31 s.n. San Mateo At mouth of ravine west of quarry, San Bruno Mountains Comment
  POM132667  Ligusticum apiifolium A. D. E. Elmer 1903-07 4966 San Mateo San Mateo Comment
  POM132683  Ligusticum apiifolium A. D. E. Elmer 1903-06 4803 San Mateo San Mateo Comment
  CAS-BOT-BC173819  Lilaea scilloides Peter Rubtzoff 1978-7-8 9224 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC451670  Lilaea scilloides W. R. Dudley 1900-3-18 s.n. San Mateo Santa Cruz Peninsula. Pond on Jersey Farm Road West of Baden Comment
  JROH4689  Lilium pardalinum subsp. pardalinum John Hunter Thomas 1989-6-17 24776 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek Comment
  CDA36142  Limonium binervosum Michael Perlmutter 2011-6-15 San Mateo Burlingame, Sanchez Marsh. 0 Comment
  CAS-BOT-BC158105  Limonium californicum W. R. O. 1973-10-10 1227 San Mateo San Francisco Bay; Redwood City (Mobile Estates) Comment
  UC2046448  Limonium californicum Michael Perlmutter 2011-10-2 s.n. San Mateo Coyote Point Marina. County of San Mateo Department of Parks. Comment
  JEPS82911  Linanthus ambiguus Roy E. Buck and Randall A. Morgan 1983-6-7 337 San Mateo in triangle of Edgewood and Canada Rds and Hwy. I-280; San Francisco Watershed Reserve 137 Comment
  UC205782  Linanthus ambiguus C. F. Baker 1902-5-4 751 San Mateo Woodside Comment
  SEINET12279017  Linanthus androsaceus Unknown 1932-1 9020 San Mateo Los Francos Woods Comment
  SEINET5556991  Linanthus androsaceus H. S. Gentry 1931-1 91 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  UCSC004682  Linanthus androsaceus Randall Morgan 1994-4-13 2181 San Mateo Edgewood Park/Canada Road Comment
  SEINET12279096  Linanthus liniflorus L. S. Rose 1932-1 32217 San Mateo San Bruno 183 Comment
  SEINET7076098  Linanthus parviflorus 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
  UCR66523  Linanthus parviflorus David D. Keck 1932-5-6 1481 San Mateo Just west of Millbrae Highlands 50 Comment
  JROH5967  Linaria bipartita John Hunter Thomas 1982-5-25 20964 San Mateo Jasper Ridge Biological Preserve; roadside [Sand Hill Rd.] Comment
  JROH2940  Linum bienne Ann Lambrecht 2002-5-18 2 San Mateo Jasper Ridge Biological Preserve, Stanford University; Sand Hill Road fence line Comment
  RSA152237  Lithocarpus densiflorus var. densiflorus I. L. Wiggins 1925-04 1661 San Mateo On Kings Mountain Road one mile above Woodside just above the first Pseudotsuga menziesii on the right edge of the road. Comment
  CAS-BOT-BC430776  Lithophragma affine Margaret A. Barry 1937-5-1 52 San Mateo Coal Mine Ridge Comment
  JROH3888  Lithophragma affine John H. Thomas 1972-4-1 16048 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD102692  Lithophragma affine E. Jacqueline Garcia 1986-4-19 s.n. San Mateo San Bruno Mountains, 0.25 mile from Summit Loop trailhead on Guadeloupe Canyon Road. Comment
  CAS-BOT-BC436225  Lithophragma heterophyllum D. E. Breedlove 1974-5-13 36209 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  CAS-BOT-BC283229  Lolium multiflorum Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mile N of Pigeon Point and about 39 miles S of San Francisco Comment
  UCD66070  Lolium multiflorum Lewis S. Rose 1966-5-2 66036 San Mateo Emerald Lake, west of Redwood City. 91 Comment
  RSA6410  Lolium perenne D. D. Keck 1932-5-6 1474 San Mateo Millbrae Highlands Comment
  CAS-BOT-BC269127  Lolium perenne W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Road at top of Matara Mt. Comment
  JEPS89917  Lomatium caruifolium var. caruifolium Dean W. Taylor 1988-3-30 9493 San Mateo n. slope of s.e. ridge near the ridgecrest San Bruno Mt. (right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain); Santa Cruz Mts., San Francisco South 7 1/2 Quad., San Bruno 237 Comment
  SEINET6205051  Lomatium dasycarpum L. S. Rose 1965-1 65027 San Mateo San Bruno Mountain, S of parking lot. Comment
  JROH262  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1969-6-4 15111 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM132686  Lomatium dasycarpum subsp. dasycarpum A. D. E. Elmer 1903-04 s.n. San Mateo Crystal Springs Lake. Comment
  HSC21554  Lomatium dasycarpum subsp. dasycarpum L. S. Rose 1965-4-22 65027 San Mateo San Bruno Mountain, S of parking lot 579 Comment
  JROH274  Lomatium macrocarpum John H. Thomas 1962-5-31 9894 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU1078  Lomatium macrocarpum C. W. Sharsmith 1951-4-6 5821 San Mateo Woodside Hills c. 3 mi W of Woodside 182 Comment
  JROH282  Lomatium utriculatum John Hunter Thomas 1981-5-25 20640 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM132981  Lomatium vaginatum C. F. Baker 1902-4-8 2751 San Mateo San Andreas Lake Comment
  CAS-BOT-BC240589  Lonicera hispidula J. I. McMurphy 1906-5-20 37 San Mateo Santa Cruz Peninsula. King's Mt., Santa Cruz Mts. Comment
  CAS-BOT-BC240591  Lonicera hispidula H. L. Mason 1921-7-14 s.n. San Mateo La Honda - Pescadero Creek Rd Comment
  CAS-BOT-BC240592  Lonicera hispidula David D. Keck 1932-8-13 1753 San Mateo Alpine Creek Road above Rolph's Ranch, east slope of Santa Cruz Mtns. 550 Comment
  CAS-BOT-BC240601  Lonicera hispidula Daniel Cohen 1953-6-5 110 San Mateo Los Trancos Woods Comment
  CAS-BOT-BC164679  Lonicera involucrata var. ledebourii Peter Rubtzoff 1980-12-11 9635 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC241543  Lonicera involucrata var. ledebourii W. R. Dudley June s.n. San Mateo San Francisquito Cr., Palo Alto Ranch Comment
  CAS-BOT-BC243974  Lonicera involucrata var. ledebourii W. R. Dudley 1894-3-28 s.n. San Mateo Canyon near Lobitos Creek Comment
  UCR248348  Lotus corniculatus Peter Rubtzoff 1987-7-31 9821 San Mateo South San Francisco, Best Products Company parking lot on east side of Gellert Blvd. north of Westborough Blvd. intersection 84 Comment
  JROH2042  Lotus corniculatus John Hunter Thomas 1977-6-16 18810 San Mateo Jasper Ridge Biological Preserve, Stanford University; in Searsville Lake Comment
  UC80966  Lotus formosissimus Katharine Brandegee 1905-6-20 San Mateo seashore of Halfmoon Bay Halfmoon Bay Comment
  UC81143  Lotus formosissimus Mrs. J. M. Hutchings 1895-4-4 San Mateo Pescadero Comment
  UC15718  Lotus heermannii var. orbicularis F. T. Bioletti 1892-6-22 San Mateo Italian Cemetery, S. Fr. Comment
Read comments
Dec 1 2007
  UC1004320  Lotus tenuis W. A. Post Jul 1955 San Mateo Burlingame Comment
  HSC23870  Lotus unifoliolatus var. unifoliolatus Mary Katherine Wicksten 1971-6-15 24 San Mateo Huddart Park Rd. bank near office Comment
  UC311390  Lupinus A. D. E. Elmer May 1903 4827 San Mateo Portola Comment
  JROH5563  Lupinus affinis John Rawlings 2013-4-2 1186 San Mateo Jasper Ridge Biological Preserve, Stanford University; above upper end of Trail 11 137 Comment
  POM10874  Lupinus affinis C. F. Baker 1903-4-6 471 San Mateo Crystal Springs Lake. Comment
  SBBG33485  Lupinus affinis A. D. E. Elmer -Apr-1903 5021 San Mateo Portola Comment
  UC126955  Lupinus affinis J. Burtt Davy 1895-4-20 1087 San Mateo San Mateo Creek Comment
  SEINET10488410  Lupinus albifrons Charles F. Baker 1902-5-4 Baker UMO 71685 San Mateo Crystal spring. Open sides of gulches, 9-18 dm high Comment
  SEINET10969885  Lupinus albifrons Donald E. Bright 1962-4-16 Bright 225 San Mateo Disturbed roadside, 8 miles ne of santa cruz, near graham hill and sims road, Along hwy 17. Bushy plant ca 2 ft high and 3-4 ft broad Comment
  UCSB11178  Lupinus albifrons Connelly, Dianne 1962-4-21 San Mateo San Mateo County Game Preserve, 15 miles southeast of San Francisco on Highway 9 152 Comment
  POM10889  Lupinus albifrons var. albifrons C. F. Baker 1902-3-22 341 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC195799  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-21 48463 San Mateo Highway 5 - junction Burlingame 4 mile road, 0.6 miles North Comment
  RSA134041  Lupinus albifrons var. collinus Roxana S. Ferris 1921-4-7 2131 San Mateo San Bruno mountain near San Francisco 213 Comment
  RSA750173  Lupinus albifrons var. collinus Robert F. Thorne 1963-6-9 32209 San Mateo On top of San Bruno Mountain. 335 Comment
  CAS-BOT-BC8521  Lupinus apricus C. P. Smith 1908-3-30 1374 San Mateo Stanford University, field back of Cedro Cottage Comment
  CAS-BOT-BC196433  Lupinus arboreus John Thomas Howell 1933-4-9 10973 San Mateo 2 miles n. of Pigeon Pt. Comment
  SEINET10488459  Lupinus arboreus William R. Dudley 1899-5-14 Dudley UMO 67685 San Mateo Santa cruz peninsula. Near baden. Pale lavender, turning yellow Comment
  SEINET10488484  Lupinus arboreus Walter Knight, Irja Knight 1964-5-4 Knight s.n. San Mateo San bruno mountains. Nell pubescent from claw to tip. Colma canyon Comment
  JROH2114  Lupinus bicolor John H. Thomas 1974-4-4 17076 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5695  Lupinus bicolor John Rawlings 2015-3-31 1415 San Mateo Jasper Ridge Biological Preserve, Stanford University. In old quarry off of Trail 12 77 Comment
  UCD107181  Lupinus bicolor A. A. Heller 1907-4-20 8451 San Mateo near Lake Merced. Comment
  SEINET10484981  Lupinus bicolor var. umbellatus Roderick 1965-3-21 RODERICK s.n. San Mateo Summit at power line ridge. Usually up to about a dozen plants in a colony. Comment
  SEINET11071791 Image available Lupinus collinus A. A. Heller 1907-4-25 8462 San Mateo San Bruno Hills Comment
  POM11076  Lupinus densiflorus var. palustris A. D. E. Elmer 1903-06 4413 San Mateo Lake San Andreas. Comment
  SEINET10485250  Lupinus densiflorus var. palustris Charles Piper Smith 1947-4-25 Smith 47178 San Mateo Belmont, skyline, w of vanderlaan summit. Comment
  SEINET12154553  Lupinus formosus Unknown 1933-1 10508 San Mateo nr Belmont Comment
  RSA414793  Lupinus formosus var. formosus E. A. Purer 1933-8-13 5426 San Mateo Near Belmont Comment
  RSA130909  Lupinus formosus var. formosus E. K. Balls 1958-7-22 23592 San Mateo Highway 5, at turn-off to San Bruno, San Bruno Hills. 213 Comment
  SEINET12154566  Lupinus latifolius Unknown 1932-1 8979 San Mateo nr entrance to Gov Rolph Estate Comment
  RSA91267  Lupinus latifolius subsp. latifolius D. D. Keck 1932-5-11 1770 San Mateo Three miles west of Kings Mountain, on road to Tunitas, west slope of Santa Cruz Mountains. 450 Comment
  UC75237  Lupinus latifolius var. latifolius C. F. Baker Apr 1903 1929 San Mateo Crystal Springs Lake Comment
  SBBG39518  Lupinus microcarpus var. densiflorus L. S. Rose 1970-5-9 70038 San Mateo Chateau Drive near Skyline, Hillsborough 91 Comment
  JROH2132  Lupinus nanus John Hunter Thomas 1977-6-16 18762 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2144  Lupinus nanus Toni Corelli 2010-3-29 363 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Road E at junction of Trail 11 and Trail 9 106 Comment
  UC201931  Lupinus nanus Inez Ray Smith San Mateo Crystal Spring Lakes Comment
  POM10646  Lupinus nanus subsp. latifolius C. F. Baker 1902-4-12 507 San Mateo San Gregorio Comment
  SEINET10936614  Lupinus succulentus var. succulentus Smith 1948-4-20 Smith 48109 San Mateo Hwy 1, san pedro point. North grade. Comment by d.b. Dunn: this is smith's Variety laynae, which i believe is depauperate due to the marine exposure. Comment
  SEINET10490286  Lupinus vallicola subsp. apricus David B. Dunn, Howard Brown 1946-5-16 Dunn 2600 San Mateo Collected on dry, rocky road out in the e side of the mtns of the san francisco Peninsula; 4.7 mi ne on the canyon rd from the jct with skyline drive (hwy 5). Comment
  UC311903  Lupinus variicolor A. D. E. Elmer April, 1903 4915 San Mateo Lake San Andreas Comment
  RSA162482  Lupinus variicolor E. K. Balls 1963-5-22 12067 San Mateo 2 mi. N. from turn out to San Gregorio, State Hwy. #1. 15 Comment
  SEINET10936778  Lupinus variicolor Smith 1947-4-25 Smith 47185 San Mateo Pebble beach (pescadero), hwy 1. Banner white, wings violet blue. Comment
  POM290435  Luzula comosa Lyman Benson 1930-5-3 2102 San Mateo Above Woodside, Mt. Range: Santa Cruz 244 Comment
  RSA15311  Luzula comosa Carl B. Wolf 1927-4-3 281 San Mateo 1 1/2 miles above east base of La Honda grade, Santa Cruz Mountains. Comment
  JROH4523  Luzula comosa var. comosa John H. Thomas 1964-4-19 10327 San Mateo Jasper Ridge Biological Preserve, Stanford University. Area below dam. Comment
  JROH5688  Luzula comosa var. comosa John Rawlings 2015-2-21 1280 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 6 near Rd F 150 Comment
  CAS-BOT-BC441264  Luzula macrantha Alice Eastwood 1894-5-1 s.n. San Mateo South San Francisco Comment
  CAS-BOT-BC441367  Luzula subsessilis Alice Eastwood 1914-3-12 s.n. San Mateo San Bruno Hills Comment
  UC72371  Luzula subsessilis Harley P. Chandler 1901-3-15 805 San Mateo west of Colma Comment
  UCSB7479  Lysichiton americanus Horton, Sam 1969-3-28 San Mateo Canyon Road, 1.4 miles east of Cloverdale Road, Butano 152 Comment
  JROH3364  Lysimachia arvensis John H. Thomas 1967-5-12 12883 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5568  Lysimachia arvensis John Rawlings 2013-4-19 1151 San Mateo Jasper Ridge Biological Preserve, Stanford University. South edge of Trail 11 in chaparral. 145 Comment
  CAS-BOT-BC290600  Lythrum Peter Rubtzoff 1987-8-26 9837 San Mateo San Bruno Mountain, Saddle area on N side of Guadalupe Canyon. Parkway west of Radio Road junction; northwestern part of the area along old Guadalupe Road. Comment
  JEPS79507 Image available Lythrum salicaria Edward Lee 1978-8-24 San Mateo Princeton Marsh Comment
  SD38972  Madia elegans Edith A. Purer 1933-8-13 5421 San Mateo Santa Clara Valley near Belmont. Comment
  CAS-BOT-BC343907  Madia elegans Bruce G. Baldwin 1985-10-19 547 San Mateo 3.3 miles south of junction with California State Highway 92 along Canada Road Comment
  CAS-BOT-BC343916  Madia elegans Rosenbaum 1916-9-30 s.n. San Mateo Near San Mateo Co. Almshouse Comment
  RSA407385  Madia elegans subsp. elegans Lyman Benson 1937-7-25 8470 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  SD27831  Madia elegans subsp. elegans Carl B. Wolf 1929-5-17 3713 San Mateo 1.0 mile west of Skyline Blvd. on Alpine Road. 305 Comment
  JROH1046  Madia exigua John H. Thomas 1975-5-26 17903 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1051  Madia exigua John Hunter Thomas 1978-4-22 19108 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1059  Madia exigua John Hunter Thomas 1983-6-2 22333 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA124756  Madia exigua John H. Thomas 1958-5-10 7141 San Mateo Jasper Ridge. About 5 miles SW of Palo Alto. 152 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
  JROH1066  Madia gracilis John H. Thomas 1958-5-10 7142 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1081  Madia gracilis John Hunter Thomas 1981-5-25 20621 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC913110  Madia gracilis David D. Keck 1932-6-1 1788 San Mateo on La Honda road above Woodside; east slope of the Santa Cruz Mts. 305 Comment
  UCR121558  Madia madioides George K. Helmkamp, E. A. Helmkamp 1999-6-28 4977 B San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  CAS-BOT-BC345139  Madia sativa Margaret A. Barry 1937-7-17 211 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC353466  Madia sativa Peter Rubtzoff 1975-9-11 8378 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC353475  Madia sativa Peter Rubtzoff 1979-7-26 9301 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC345134  Madia sativa Bruce G. Baldwin 1985-9-1 513 b San Mateo 0.5 miles west of Interstate 280 along Sand Hill Road Comment
  CAS-BOT-BC345143  Madia sativa David D. Keck 1930-10-15 988 San Mateo South-west of Woodside 450 Comment
  JROH1110  Madia sativa John Hunter Thomas 1982-7-22 21088 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  RSA0036457  Madia sativa Peter Rubtzoff 1979-7-26 9300 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  UCSB33561  Maianthemum racemosum Brownell, Kathleen 1979-3-27 San Mateo Gazoos Road; 0.6 miles from Highway 1; Near Butano State Park; Foothills of Santa Cruz Mountains 76 Comment
  JROH4704  Maianthemum stellatum John H. Thomas 1969-4-12 14885 San Mateo Jasper Ridge Biological Preserve, Stanford University. Redwoods below dam Comment
  JROH4717  Maianthemum stellatum John Hunter Thomas 1988-4-7 24383 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG45016  Maianthemum stellatum L. S. Rose 1933-4-9 33070 San Mateo Belmont Comment
  SEINET3992115  Maianthemum stellatum Unknown 1941-3-12 41024 San Mateo Skyline Blvd. W. of San Bruno 152 Comment
  CAS-BOT-BC514155  Maianthemum stellatum R. Bacegalupi 1922-3-1 s.n. San Mateo Pescadero Creek Comment
  CAS-BOT-BC514165  Maianthemum stellatum Margaret A. Barry 1937-4-21 14 San Mateo Woods on Coal Mine Ridge Comment
  CAS-BOT-BC203908  Malacothamnus aboriginum Alice Eastwood; John Thomas Howell 1939-6-30 7435 San Mateo Los Trancos Creek near Stanford University Comment
  UC1041013  Malacothamnus davidsonii J. W. Congdon 1901-7-13 San Mateo Spring Valley Comment
  UC138326  Malacothamnus davidsonii J. W. Congdon 1897-7-27 San Mateo Belmont Comment
  UCD54555  Malva arborea Ellen Dean; Tom Starbuck, Margaret Starbuck 2005-10-16 2745 San Mateo Town of Miramar, N of Half Moon Bay. Along Mirada Rd. on coastal bluff overlooking beach. Comment
  JROH1899  Marah fabacea Daniel Cohen 1953-4-11 25 San Mateo Jasper Ridge Biological Preserve, Stanford University; near west end of Searsville Lake Comment
  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
  RSA15241  Marah fabacea C. B. Wolf 1927-2-17 202 San Mateo Los Trancos Creek, 2 miles back of Stanford University. Comment
  POM59187  Marah oregana C. F. Baker 1902-4-4 450 San Mateo Crystal Springs Lake Comment
  JEPS51539  Meconella californica Dr. L. M. Newlon 1920-3-27 San Mateo South San Francisco hills Comment
  POM176886  Meconella californica W. R. Dudley 1894-3-26 s.n. San Mateo San Mateo to Crystal Springs Reservoir, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC422684  Meconella californica Miss E. Cannon 1893-3-1 s.n. San Mateo South San Francisco Comment
  JROH2176  Medicago polymorpha John Hunter Thomas 1992-5-14 25229 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat ramp Comment
  CAS-BOT-BC269475  Melica californica L. R. A. 1902-5-4 2407 San Mateo Woodside Comment
  JROH5299  Melica californica W. H. Lennihan 1990-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Right side of trail leading from serpentine hill to oak woodlands. Comment
  POM204770  Melica californica C. F. Baker 1903-4-6 1892 San Mateo San Bruno Hills. Comment
  UC1738811  Melica californica var. californica Dean W. Taylor 1988-3-30 9489 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-BC281410  Melica imperfecta K. Wagnon 1939-3-24 137 San Mateo Youngman's Canyon on Trinity Rd 2.5 miles E of Glen Ellen Comment
  JEPS48479  Melica imperfecta James G. Daly 1934-1 310 San Mateo upper Alpine Creek road (San Gregorio Creek watershed); San Gregorio Creek Comment
  JROH5302  Melica imperfecta John Hunter Thomas 1978-4-8 19059 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5307  Melica imperfecta John Hunter Thomas 1984-4-12 23296 San Mateo Jasper Ridge Biological Preserve, Stanford University. Path below dam in oak woodland. Comment
  CAS-BOT-BC264248  Melica torreyana W. R. Dudley 1899-5-1 s.n. San Mateo Road from San Andreas Rs. to Pilarcitos, Santa Cruz Mountain Peninsula Comment
  JROH2191  Melilotus indicus John Hunter Thomas 1980-5-8 19938 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD40028  Melilotus indicus Edith A. Purer 1933-7-27 5368 San Mateo Pigeon Point Comment
  UC2049893  Melilotus indicus H. W. Johansen 1955-4-23 80 San Mateo Crystal Springs Road, 2 miles W of San Mateo Comment
  RSA177005  Mentha pulegium John H. Thomas 1964-11-29 10533 San Mateo Jasper Ridge Biological Experimantal Area, about 5 miles SW of Palo Alto; W end of Searsville Dam Comment
  JROH2806  Mentha pulegium John H. Thomas 1959-8-22 8079 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET6627797 Image available Mentha spicata D. Aronson 1967-1 153 San Mateo East Palo Alto Comment
  CDA31212  Mercurialis annua J. Eide 2010-2-19 PDR# 1527850 San Mateo East Palo Alto: in residential garden. 0 Comment
  CDA4874  Mercurialis annua T. C. Fuller 1967-8-23 16293 San Mateo Coastways Ranch, 0.2 mile east of the Coast Highway (Hwy 1), 0.2 mile north of the county line of Santa Cruz Co., 0 Comment
  CAS-BOT-BC438141  Mesembryanthemum nodiflorum Malcom A. Nobs; S. Galen Smith 1949-8-27 1623 San Mateo East of Redwood City Comment
  CAS-BOT-BC438142  Mesembryanthemum nodiflorum Malcom A. Nobs 1948-12-20 721 San Mateo Redwood City yacht harbor Comment
  CAS-BOT-BC428899  Micranthes californica Ira L. Wiggins 1929-3-23 3369 San Mateo Road to Mud Lake, near Stanford University. Comment
  CAS-BOT-BC428905  Micranthes californica Elizabeth McClintock 1965-3-21 s.n. San Mateo San Bruno Mountain. 1/4 mi. e. of Brisbane power lines Comment
  RSA176742  Micropus californicus John H. Thomas 1963-5-12 10086 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  UCD69082  Micropus californicus P. Rodriguez-Rojo 1997-5-31 San Mateo Jaspen Ridge. Serpentine annual grasslands. UTM: 10SEM4168 155 Comment
  CAS-BOT-BC348570  Micropus californicus var. californicus John H. Thomas 1971-5-2 15843 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  JEPS40609  Micropus californicus var. californicus R. F. Hoover 1941-4-23 4909 San Mateo Redwood City Hills Comment
  JROH1124  Micropus californicus var. californicus John H. Thomas 1974-4-24 17187 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC348577  Micropus californicus var. californicus Wm. Vortriede 1928-5-16 s.n. San Mateo Coloma Comment
  CAS-BOT-BC348660  Micropus californicus var. subvestitus W. R. Dudley 1906-5-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Hills s.w. of San Mateo Comment
  CAS-BOT-BC348719  Microseris bigelovii Kenton L. Chambers 1956-6-20 1048 San Mateo Pebble Beach near Pescadero Point Comment
  CAS-BOT-BC348723  Microseris bigelovii W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. West of Baden Comment
  CAS-BOT-BC349038  Microseris douglasii subsp. douglasii Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  JROH1155  Microseris douglasii subsp. tenella John Rawlings, Ann Lambrecht 2007-4-18 1040 San Mateo Jasper Ridge Biological Preserve, Stanford University. Road F in Area H. 170 Comment
  JROH5590  Microseris douglasii subsp. tenella John Rawlings 2013-4-23 1185 San Mateo Jasper Ridge Biological Preserve, Stanford University. Road F 50 meters east of Trail 15. 170 Comment
  UC26859  Mimulus arvensis J. Burtt Davy 1895-4-20 1078 San Mateo Crystal Springs Lake Comment
  SEINET12269789  Mimulus aurantiacus J. I. McMurphy 1906-1 25 San Mateo Kings Mt., Santa Cruz Mts., Santa Cruz Peninsula Comment
  SEINET12269790  Mimulus aurantiacus Unknown 1932-1 9023 San Mateo Jasper Ridge Comment
  SEINET8208860  Mimulus aurantiacus J. I. McMurphy 1906-5-20 25 San Mateo Kings Mt. Santa Cruz Mts. Comment
  POM222786  Mimulus aurantiacus var. aurantiacus S. S. Berry 1909-4-23 s.n. San Mateo Road near Los Francos Creek 61 Comment
  UC1063401  Mimulus aurantiacus var. aurantiacus H. S. Yates 1935-2-3 5013 San Mateo 1/2 mi se Pigeon Pt.; Santa Cruz Quadrangle Comment
  UC1063162  Mimulus grandis N. K. Carlson 1935-6-29 98 San Mateo 2 mi ne Pigeon Pt.; Santa Cruz Quadrangle Comment
  SEINET8374162  Mimulus guttatus A. D. E. Elmer 1903-1 4857 San Mateo Crystal Springs Lake. Comment
  JROH1699  Minuartia douglasii John H. Thomas 1967-5-10 12849 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM308671  Minuartia douglasii Florence Danforth 1943-5-7 2388 San Mateo Jasper Ridge, above Searsville Lake. Comment
  CAS-BOT-BC388828  Minuartia douglasii W. R. Dudley 1894-4-1 s.n. San Mateo Santa Cruz Mountain Peninsula. San Mateo Ravine Comment
  JROH1706  Minuartia douglasii Carol Zabel 1989-5-5 15 San Mateo Jasper Ridge Biological Preserve, Stanford University; Herb's serpentine loop, top of Trail 5 Comment
  RSA63116  Monardella purpurea L. S. Rose 1950-5-20 50135 San Mateo Emerald Lake region, hills w. of Redwood City. 244 Comment
  CAS-BOT-BC214082  Monardella villosa Cherie Wetzel 1969-6-20 887 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC220661  Monardella villosa H. A. Dutton 1900-2-4 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  CAS-BOT-BC220662  Monardella villosa Margaret A. Barry 1937-7-17 210 San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC214079  Monardella villosa Walter Knight 1964-9-14 847 San Mateo Peak Mt. in Montara Range 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
  JEPS127870  Monardella villosa subsp. villosa Adam C. Schneider 2013-5-17 154 San Mateo Crystal Springs Reservoir Comment
  JROH2836  Monardella villosa subsp. villosa John H. Thomas 1971-5-30 15958 San Mateo Jasper Ridge Biological Preserve, Stanford University; along trail below dam Comment
  JROH2840  Monardella villosa subsp. villosa John H. Thomas 1973-6-10 16822 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC104640  Monardella villosa subsp. villosa Katharine Brandegee 1905-6-20 San Mateo Near Lake Pilarcitos Comment
  CAS-BOT-BC327788  Monolopia gracilens Eric Walther 1920-5-9 s.n. San Mateo Woodside Comment
  SD27824  Montia verna Carl B. Wolf 1929-4-29 3661 San Mateo Santa Cruz Mts., 1 mi. no. of summit of La Honda grade on Skyline Blvd. Comment
  JEPS127796  Muilla maritima Adam C. Schneider with C. Matt Guilliams 2013-4-7 65 San Mateo Along dirt road running parallel to the overhead power transmission lines. Comment
  CAS-BOT-BC508583  Muilla maritima Helen M. Edwards 1917-4-12 s.n. San Mateo Near Crystal Springs Lake Comment
  CAS-BOT-BC508588  Muilla maritima L. S. Rose 1927-3-25 s.n. San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC166663  Myosotis latifolia Peter Rubtzoff 1977-4-16 8949 San Mateo San Bruno Mountains. Comment
  SEINET218191  Myosotis sylvatica Cynthia Taylor 1971-7-11 208 San Mateo Skyline Boulevard near La Honda Road., Santa Cruz Mountains. 445 Comment
  JROH2693  Myriophyllum aquaticum John Hunter Thomas 1977-6-16 18782 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA10397  Myriophyllum sibiricum Carl B. Wolf 1927-6-15 s.n. San Mateo Along Skyline Drive, 8 mi. S of San Francisco. Comment
  CAS-BOT-BC260027  Nassella lepida John H. Thomas 1971-5-2 15855 San Mateo Near intersection of Canada Road and Edgewater Road, about 3 miles W from Redwood City 152 Comment
  CAS-BOT-BC260237  Nassella pulchra H. A. Dutton 1900-2-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside Comment
  SBBG115413  Nassella pulchra B. Crampton 1962-6-11 6486 San Mateo ca. 5 mi W of Belmont, at jct of Ralston Ave and Skyline Blvd, Pulgas Ridge, along E side of lower Crystal Springs Reservoir Comment
  UCD37962  Nassella pulchra Beecher Crampton 1962-6-11 6502 San Mateo San Mateo County, Sharp park suburb of pacifica, Moris' Point Road, west of State Highway 1. Comment
  JROH1571  Nasturtium officinale John H. Thomas 1973-6-15 16830 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC60478  Nasturtium officinale Walter Knight; Irja Knight 1963-8-6 s.n. San Mateo San Bruno Mountain. Crocker Avenue. Comment
  JROH3207  Navarretia heterodoxa John Hunter Thomas 1986-6-9 24092 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET3696485 Image available Navarretia heterodoxa Lewis S. Rose 1934-5-27 34280 San Mateo Emerald Lake. Comment
  RSA42950  Navarretia heterodoxa R. C. Bacigalupi 1947-6-4 2821 San Mateo Back of San Carlos Comment
  SEINET7963123 Image available Navarretia heterodoxa L. S. Rose 1941-1 41269 San Mateo West of Redwood City, Emerald Lake 120 Comment
  POM65123  Navarretia squarrosa C. F. Baker 1903-6-30 3360 San Mateo Pilarcitos Comment
  UC1124148  Navarretia squarrosa A. E. Wieslander 1935-2-3 504 San Mateo 0.5 mi se Pigeon Pt.; Santa Cruz Quad. 30 Comment
  JROH3214  Navarretia squarrosa John Hunter Thomas 1977-6-16 18760 San Mateo Jasper Ridge Biological Preserve, Stanford University. Weedy area near old racing oval. Comment
  JROH2737  Nemophila menziesii var. menziesii D. D. Davis 1903-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  POM65254  Nemophila menziesii var. menziesii C. F. Baker 1902-4-12 500 San Mateo La Honda. Comment
  POM289745  Nemophila menziesii var. menziesii Lyman Benson 1930-5-1 2067 San Mateo Stanford University. San Lorenzo Mt. Range. 91 Comment
  JROH5667  Nemophila parviflora var. parviflora John Rawlings 2014-3-31 1243 San Mateo Jasper Ridge Biological Preserve, Stanford University; along uphill side of Rd G just south of small drainage south of Rd G intersection with Rd J. 107 Comment
  JROH5862  Nerium oleander Cary Tronson 2012-8-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near caretakers house along Sand Hill Rd. fence 109 Comment
  CAS-BOT-BC233463  Nicotiana glauca J. H. Thomas 1964-3-31 10293 San Mateo Bank of San Francisquito Creek at University Avenue Bridge, Palo Alto Comment
  JROH5953  Nuttallanthus texanus D. D. Davis 1903-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge area, rocky point Comment
  CAS-BOT-BC140437  Oemleria cerasiformis James R. Shevock 1973-1-1 2325 San Mateo Along Skyline Drive, Calif. highway 35. Near Lower Crystal Springs Reservoir Comment
  CAS-BOT-BC140446  Oemleria cerasiformis Elizabeth McClintock 1967-6-24 s.n. San Mateo Lower Colma Canyon Comment
  CAS-BOT-BC389684  Oemleria cerasiformis Jeanie Nieri 1953-1-31 s.n. San Mateo Huddart Park Comment
  HSC66971  Oemleria cerasiformis Richard Spjut 1980-5-15 6195 San Mateo Palo Alto Foothill Park along Steep Hollow Trail, 1/4 mi. from jct. with Wildhorse Valley 229 Comment
  RSA195542  Oemleria cerasiformis John H. Thomas 1967-2-9 12400 San Mateo San Bruno. Near intersection of Skyline Blvd. and Berkshire Dr. Comment
  JROH292  Oenanthe sarmentosa Carol Zabel 1989-8-1 18 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Middle Lake Comment
  JROH2993  Olea europaea John H. Thomas 1977-1-23 18462 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC499688  Orobanche californica subsp. californica Robert S. Jr. Cox 1946-8-17 s.n. San Mateo Hills above Half Moon Bay Comment
  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
  SEINET12270179  Orthocarpus densiflorus M. T. Doutt 1931-1 416 San Mateo Skyline Blvd, W of Hillbrae Comment
  POM126839  Orthocarpus erianthus var. roseus M. S. Baker 1904-05 s.n. San Mateo Ocean View. Comment
  RSA178633  Orthocarpus lithospermoides L. R. Abrams 1915-6-7 5237 San Mateo Woodside - Crystal Springs road near junction with Whipple Road. Comment
  SEINET12265143  Orthocarpus lithospermoides G. A. McCallum 1933-1 s.n. San Mateo in Spring Valley Comment
  SEINET8723036 Image available Osmaronia cerasiformis Lewis S. Rose 1937-1 37004 San Mateo Skyline Blvd. , W. of Tanforan Alt. 600 ft. 183 Comment
  CHSC56513  Osmorhiza chilensis Steven Triano 1988-5-24 170 San Mateo Along se side of Old La Honda Road ca 0.5 air miles e of SkyLonda. 405 Comment
  CAS-BOT-BC166716  Oxalis albicans subsp. pilosa Peter Rubtzoff 1975-5-21 7979 San Mateo San Bruno Mountains. Saddle area north of Guadalupe Canyon Parkway and west of Radio Road junction. Comment
  CHSC118350  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
  SEINET6948092  Oxalis corniculata Robert A. Evers, Clara V. Evers 1975-8-24 115022 San Mateo Trailer Villa, Redwood City. Comment
  UC311197  Oxalis oregana A. D. E. Elmer March, 1903 4532 San Mateo Portola Comment
  RSA130344  Oxalis oregana W. R. Dudley 1894-3-26 s.n. San Mateo Santa Cruz Peninsula: Redwoods beyond Kings, Santa Cruz Range Comment
  SEINET10870216  Oxalis oregana R. D. Sage 1992-1-6 Sage 13395 -2 San Mateo Collected along purisima creek rd trail in purisima creek redwoods open space preserve. 9 Km w woodside. 244 Comment
  JROH3093  Oxalis pes-caprae Toni Corelli 2012-2-28 379 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 5 along south side of upper section of trail 121 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-BC253970  Parapholis incurva John H. Thomas 1963-5-20 10138 San Mateo Ano Nuevo Island, about 0.5 mile off shore and about 20 miles NW of Santa Cruz Comment
  UC1101573  Parapholis incurva Malcolm A. Nobs and S. Galen Smith 1949-8-26 1604 San Mateo Hwy 1, 0.6 mi n Pigeon Point Comment
  CDA15877  Parietaria judaica J. Xerogeanes 2000-1-4 PDR 1242905 San Mateo North Coast; Chorry Rd., San Bruno. 0 Comment
  JROH5344  Paspalum distichum L. R. Abrams 1914-7-1 5117 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Comment
  POM207798  Paspalum distichum C. F. Baker 1902-10-20 1836 San Mateo Searsville Comment
  JROH1401  Pectocarya pusilla L. Roush & G. Kimber 1918-5-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4112  Pedicularis densiflora John H. Thomas 1973-4-14 16571 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4117  Pedicularis densiflora John Hunter Thomas 1981-5-25 20631 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA130980  Pedicularis densiflora A. M. Patterson 1907-4-27 s.n. San Mateo Kings Mt. Santa Cruz Peninsula. Comment
  UCR131712  Pedicularis densiflora C. B. Wolf 1927-2-26 00221 San Mateo La Honda Grade 305 Comment
  SEINET12270441  Pedicularis densiflora Unknown 1930-1 7320 San Mateo Jasper Ridge Comment
  JEPS82090 Image available Pedicularis dudleyi Rimo Bacigalupi with J. H. Thomas and L. Heckard 1961-5-23 7712 San Mateo 1/3 mi n of its confulence with Pescadero Creek (e side of Peters Creek); Peters Creek 134 Comment
  NY90895  Pedicularis dudleyi A. D. E. Elmer 06 1903 4289 San Mateo Pescadero Comment
  RSA125134  Pedicularis dudleyi E. F. Sprague 1956-5-28 1701 San Mateo Portola State Park, about campground headquarters 305 Comment
Read comments
Mar 2 2010
  CDA4422  Pelargonium vitifolium T. C. Fuller 1960-10-5 5198 San Mateo Along old highway right-of-way, Highway 1, 2.5 miles south of Pebble Beach State Park. 0 Comment
  JEPS23863  Pelargonium vitifolium J. H. Thomas 1959-8-16 8066 San Mateo about 2 mi n Pigeon Point (along the coast) 15 Comment
  POM203868  Pelargonium vitifolium J. T. Howell 1932-12-21 10864 San Mateo Near Pescadero. Comment
  JROH107  Pentagramma triangularis subsp. triangularis John H. Thomas 1956-4-7 5620 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH317  Perideridia kelloggii John Hunter Thomas 1992-7-24 25395 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA430457  Perideridia kelloggii Lyman Benson 1974-02 8485 San Mateo La Honda Road 244 Comment
  CAS-BOT-BC413611  Persicaria amphibia Roxana S. Ferris 1920-9-3 2048 San Mateo Santa Cruz Mountain Peninsula. 2nd Mud Lake, Coal Mine Ridge Comment
  JROH3244  Persicaria amphibia J. H. Thomas 1960-6-1 8771 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake near dam. Comment
  CAS-BOT-BC418848  Persicaria hydropiperoides Ira L. Wiggins 1985-9-28 22298 San Mateo Bed of San Francisquito Creek, N side of creek bed, just above Pope Street bridge, Menlo Park Comment
  CAS-BOT-BC419386  Persicaria punctata Roxana S. Ferris 1945-9-25 11107 San Mateo At Pedro Point, State Highway #1 Comment
  CAS-BOT-BC330313  Petasites frigidus var. palmatus Roxana S. Ferris 1918-3-30 750 San Mateo Peters Creek, 1 mi above Evans Creek Comment
  SEINET3158140  Phacelia distans L. S. Rose 1939-4-13 39065 San Mateo San Mateo Canyon near Crystal Springs Lake 61 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
  POM87704  Phacelia nemoralis subsp. nemoralis L. R. Abrams 1901-5-5 1575 San Mateo Bear Gulch, Santa Cruz Mountains. Comment
  JROH2764  Phacelia rattanii John H. Thomas 1961-6-7 9530 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5376  Phalaris aquatica John Hunter Thomas 1989-6-6 24760 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD227705  Phalaris aquatica G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3743 San Mateo Portola Valley: Golden Hills Rd along Los Trancos Creek 106 Comment
  UCD88172  Phalaris aquatica Cecilia Murray 1963-7-23 s.n. San Mateo Portola Valley. Comment
  CAS-BOT-BC259003  Phalaris californica Ira L. Wiggins 1928-4-22 2943 San Mateo Moss Beach Comment
  CAS-BOT-BC259008  Phalaris californica George Oberlander 1949-4-2 27 San Mateo San Francisco Watershed Reserve. North Cahill Comment
  JROH5552  Pholistoma auritum var. auritum John Rawlings, Toni Corelli 2013-4-16 1133 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2 extension northwest of the cistern 102 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
  JROH4293  Phoradendron serotinum subsp. tomentosum John H. Thomas 1975-1-14 17674 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4255  Phyla nodiflora Carol Zabel, Ann Lambrecht, Toni Corelli 2001-5-21 42 San Mateo Jasper Ridge Biological Preserve, Stanford University; bank of Searsville Lake, just below Searsville Lab 105 Comment
  UC2056117  Phyllospadix scouleri K. Dickey 2015-6-18 San Mateo Pescadero, beds south of promontory Comment
  CAS-BOT-BC142176  Physocarpus capitatus Paul Arnaud 1941-4-19 s.n. San Mateo Redwood City, before Hesler Farm entrance. Comment
  SEINET3819247 Image available Physocarpus capitatus Lewis S. Rose 1939-5-5 39093 San Mateo San Mateo Canyon. 46 Comment
  CAS-BOT-BC206941  Pickeringia montana var. montana Josephine D. Randall 1907-6-29 218 San Mateo King's Mt. Road - Santa Cruz Peninsula Comment
  CAS-BOT-BC206942  Pickeringia montana var. montana J. I. McMurphy 1906-5-20 80 San Mateo King's Mt. Road, Santa Cruz Mts. - Santa Cruz Peninsula 457 Comment
  JROH2199  Pickeringia montana var. montana John H. Thomas 1973-5-5 16765 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JROH120  Pinus radiata John Hunter Thomas 1977-5-19 18616 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB23893  Pinus radiata Haller, John 1967-10-7 San Mateo Coastways Ranch near Ano Nuevo Creek, 0.5 miles inland from Ano Nuevo Bay, about 20 miles by road northwest of Santa Cruz 30 Comment
  JROH123  Pinus sylvestris John Rawlings 2005-1-1 1011 San Mateo Jasper Ridge Biological Preserve, Stanford University. West of Rd. G in vicinity of power poles 118 Comment
  CAS-BOT-BC137320  Piperia elegans Phillip Wheeler 1965-8-16 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  JROH4767  Piperia elegans subsp. elegans Linda Knox 1969-8-10 1 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC228128  Plagiobothrys chorisianus Alice Eastwood 1916-6-18 s.n. San Mateo San Bruno Hills Comment
  POM64748  Plagiobothrys chorisianus C. F. Baker 1902-3-30 429 San Mateo Crystal Springs Lake Comment
  RSA22135  Plagiobothrys chorisianus Alice Eastwood, Howell 1938-6-26 s.n. San Mateo Pigeon Point. Comment
  UC881324  Plagiobothrys chorisianus Alice Eastwood 1915-6-13 4717 San Mateo Granada Comment
  CAS-BOT-BC228119  Plagiobothrys chorisianus David D. Keck 1932-4-18 1435 San Mateo On the shore of San Francisco Bay, Burlingame 2 Comment
  RSA128816  Plagiobothrys chorisianus Roxana S. Ferris 1920-4-23 s.n. San Mateo Santa Cruz Mountain peninsula, on abandoned road above north fork of Peters Creek 640 Comment
  RSA518799  Plagiobothrys chorisianus L. R. Heckard, Thomas 1972-4-16 2897 San Mateo Along Old Canada Road (private), ca 1.5 miles south of Pulgas Water Temple (SW of Upper Crystal Springs Reservior) 122 Comment
  CAS-BOT-BC228153  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1898-4-24 s.n. San Mateo The Santa Cruz Mountain Peninsula. Near El Corte Madera Creek Comment
  CAS-BOT-BC228158  Plagiobothrys chorisianus var. chorisianus L. R. Abrams 1909-4-27 s.n. San Mateo The Santa Cruz Mountain Peninsula. Near Crystal Springs Lake Comment
  CAS-BOT-BC228168  Plagiobothrys chorisianus var. chorisianus John H. Thomas 1961-5-7 9258 San Mateo San Bruno Mountain in N part of county 396 Comment
  POM287819  Plagiobothrys chorisianus var. chorisianus E. A. Purer 1933-7-27 5392 San Mateo 2 miles south of Pigeon Point. Comment
  JROH1409  Plagiobothrys chorisianus var. hickmanii John H. Thomas 1967-4-28 12726 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SDSU5437  Plagiobothrys chorisianus var. hickmanii D. F. Howe 1967-4-13 4342 San Mateo Pebble Beach. Comment
  UC1084415  Plagiobothrys nothofulvus G. Thomas Robbins 1937-4-11 102 San Mateo near Spring Valley Lakes (along road to Woodside) Comment
  POM287296  Plagiobothrys nothofulvus Lyman Benson 1930-5-1 2055 San Mateo Stanford University. Mt. Range: San Lorenzo. 122 Comment
  JROH3116  Plantago erecta John Hunter Thomas 1980-5-6 19929 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG33953  Plantago erecta L. S. Rose 1966-5-2 San Mateo Emerald Lake, W of Redwood City 91 Comment
  HSC16822  Plantago erecta L. S. Rose 1965-5-3 65056 San Mateo San Bruno Mtn., N end 183 Comment
  JROH3127  Plantago lanceolata John H. Thomas 1967-5-12 12875 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD164599  Plantago major Peter Rubtzoff; Roman Gankin 1975-9-11 8371 San Mateo San Bruno Mountains. Pond NW of and across old Guadalupe Road from 'Saddle' area (which is located on N side of Guadalupe Canyon Parkway, W of Radio Road junction). Comment
  RSA18371  Plantago maritima Carl B. Wolf 1927-6-29 537 San Mateo Along coast south of Pebble Beach near Pescadero. Comment
  JEPS7154  Plantago maritima var. californica James G. Daly 1934-1 478 San Mateo mouth of San Gregorio Creek San Gregorio Creek Comment
  SD27817  Platanthera dilatata var. leucostachys Carl B. Wolf 1929-5-25 3728 San Mateo Pebble Beach, south of Pescadero. Comment
  CAS-BOT-BC389703  Platystemon californicus L. Sigal 1969-5-1 s.n. San Mateo Skyline Boulevard - Burlingame Comment
  POM149322  Platystemon californicus var. californicus Copeland 1903-5-24 3255 San Mateo Above Crystal Springs Lake Comment
  RSA6413  Platystemon californicus var. californicus D. D. Keck 1932-5-6 1473 San Mateo Burlingame. Comment
  POM284728  Plectritis macrocera subsp. macrocera Arthur L. Cohen 1935-4-21 635 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  SEINET10611508  Pleuropogon californicus var. californicus Adolph D. E. Elmer Elmer 4848 San Mateo San Bruno Hills. Comment
  RSA187164  Poa Le Roy Abrams 1932-5-26 s.n. San Mateo Hillside Drive, Burlingame Comment
  CAS-BOT-BC255563  Poa annua W. R. Dudley 1894-3-26 s.n. San Mateo Santa Cruz Mountain Peninsula. By road from Pescadero to San Gregorio Comment
  JROH5399  Poa annua John H. Thomas 1975-4-3 17702 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC188935  Poa annua Michener apr. 1891 118 San Mateo San Bruno Rd Comment
  CAS-BOT-BC246707  Poa howellii Ira L. Wiggins 1928-4-14 2908 San Mateo Alpine Creek 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
  JROH5419  Poa pratensis subsp. pratensis John Rawlings 2008-5-13 1000 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Ranger Bath, Searsville townsite 107 Comment
  CAS-BOT-BC243122  Poa secunda subsp. secunda Abrams 1901-3-1 1016 San Mateo Menlo Park Reservoir Comment
  JROH5423  Poa secunda subsp. secunda D. D. Davis 1903-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Rocky north slope, Searsville Ridge. Comment
  CAS-BOT-BC474768  Pogogyne serpylloides Robert E. Preston 2011-6-16 2865 San Mateo Santa Cruz Mountains. Oil Creek watershed, 1.8 mi NW of Waterman Gap 268 Comment
  RSA0022156  Pogogyne serpylloides John H. Thomas 1966-4-29 11588 San Mateo Jasper Ridge Biological experimental area, 5 miles SW of Palo Alto. Comment
  UCD147020  Pogogyne serpylloides Robert E. Preston 2011-6-16 2865 San Mateo Santa Cruz Mtns, Oil Creek watershed, 1.8 mi NW of Waterman Gap. 268 Comment
  CAS-BOT-BC232874  Polemonium carneum Mrs. E. C. Sutliffe 1921-4-3 s.n. San Mateo Lake Pilarcitos Comment
  POM64835  Polemonium carneum L. R. Abrams 1916-4-22 5576 San Mateo Santa Cruz Mountains Peninsula: Pilarcitos Canyon Comment
  UC23974  Polemonium carneum C. T. Blake 1893-5-27 San Mateo Pilarcitos Reservoir Comment
  JROH5557  Polycarpon tetraphyllum var. tetraphyllum John Rawlings 2013-5-2 1166 San Mateo Jasper Ridge Biological Preserve, Stanford University. Rd E 100 m uphill from Big Inlet; in the road southwards. 130 Comment
  UCSC007771  Polycarpon tetraphyllum var. tetraphyllum Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH3220  Polygala californica John Rawlings 2007-5-30 1013 San Mateo Jasper Ridge Biological Preserve, Stanford University. Vicinity of an abandoned camper shell near a small drainage west of the switchback zone of the Escobar/Webb Ranch horse trail. 100 Comment
  UC1543013  Polygonum amphibium var. emersum Donald G. Nelson 1939-6-14 616 San Mateo e side of Skyline Blvd. a few mi s Daly City (large permanent pond) Comment
  UC1101136  Polygonum amphibium var. stipulaceum Verne Grant and Herbert L. Mason 1946-8-28 13082 San Mateo San Francisco county prison; sag pond at entrance Comment
  POM165063  Polygonum amphibium var. stipulaceum A. D. E. Elmer 1903-07 4650 San Mateo San Pedro. Comment
  CAS-BOT-BC414234  Polygonum aviculare subsp. depressum Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  CAS-BOT-BC109246  Polygonum paronychia Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountains. Colma Canyon. Comment
  POM216540  Polygonum paronychia D. D. Keck 1931-10-5 1288 San Mateo 1 mile N of Salada Beach, 200 meters from ocean. Comment
  UC150374  Polypodium C. F. Baker 1902-1-15 235 San Mateo w side King's Mt. Comment
  CAS-BOT-BC76945  Polypodium californicum H. L. Mason 1921-6-1 s.n. San Mateo Pebble Beach near Pescadero Comment
  CAS-BOT-BC76946  Polypodium californicum Ned Cahill 1974-4-30 232 San Mateo Chaparral near the intersection of Canada and Edgewood Roads, about 3 mi westward from Redwood City. Comment
  JROH75  Polypodium californicum John H. Thomas 1964-4-19 10313 San Mateo Jasper Ridge Biological Preserve, Stanford University. At Searsville end of ridge Comment
  SJSU2297  Polypodium californicum C. W. Sharsmith 1950-4-16 6626 San Mateo seaward rim of coastal bluff near Pescadero Point near Pescadero Comment
  CAS-BOT-BC76911  Polypodium californicum W. R. Dudley 1896-2-16 s.n. San Mateo Santa Cruz Mountain Peninsula - Devil's Canyon, Black Mountain Comment
  CAS-BOT-BC76950  Polypodium californicum Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountain Comment
  UC474210  Polypodium californicum H. F. Copeland 1928-2-26 985 San Mateo on cliffs above ocean Montara Comment
  UCD136938  Polypodium californicum Lewis S. Rose 1964-2-6 64001 San Mateo Kings Mountain. 609 Comment
  SJSU10491  Polypodium scouleri S. H. Casey 1969-5-18 248 San Mateo Fern Rock, San Bruno Mt. Comment
  JROH5428  Polypogon interruptus John H. Thomas 1961-6-14 9545 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along stream below dam. Comment
  JROH5435  Polypogon interruptus John Hunter Thomas 1983-5-23 22247 San Mateo Jasper Ridge Biological Preserve, Stanford University. Roadside drainage near shack side & low-flow crossing. Comment
  UC1100394  Polypogon interruptus Malcolm A. Nobs and S. Galen Smith 1949-8-26 1611 San Mateo about 1 mi s Pigeon Point; s of Pigeon Point Comment
  CAS-BOT-BC233159  Polypogon interruptus H. A. Dutton 1900-4-29 s.n. San Mateo Santa Cruz Peninsula Comment
  CAS-BOT-BC237346  Polypogon monspeliensis George Oberlander 1949-7-24 312 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon Comment
  CAS-BOT-BC237352  Polypogon monspeliensis John H. Thomas 1964-6-19 10422 San Mateo Ano Nuevo Island, about 0.5 mile off shore about 20 miles NW of Santa Cruz Comment
  CHSC57112  Polypogon monspeliensis Steven Triano 1988-5-24 196 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  JROH5441  Polypogon monspeliensis John H. Thomas 1963-6-23 10160 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA101028  Polypogon monspeliensis G. Oberlander 1949-7-24 312 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve. Comment
  SEINET10593693  Polypogon monspeliensis Gordon H. True 1937-7-23 True 808 San Mateo North of Salada Beach. 30 Comment
  JROH4816  Polypogon viridis John Hunter Thomas 1982-7-2 21050 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing. Comment
  JROH4822  Polypogon viridis John Rawlings 2011-8-2 1081 San Mateo Jasper Ridge Biological Preserve, Stanford University. Bed of San Francisquito Creek near Dennis Martin site. 71 Comment
  RSA596241  Polypogon viridis Peter Rubtzoff, Walter Knight, I. Knight 1987-6-26 9793 San Mateo San Bruno Mountains; 'Saddle' area on north side of Guadalupe junction; near road in the area of the upper- most part of East Fork Colma Creek in the northwest corner of Fog Forest. Comment
  CAS-BOT-BC76648  Polystichum munitum Le Roy Abrams 1902-1-12 2256 San Mateo King's Mountain Comment
  JROH53  Polystichum munitum Lawrence J. Winship 1974-11-2 7 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  RSA195521  Populus trichocarpa John H. Thomas 1966-4-13 11557 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC267165  Potamogeton foliosus W. R. Dudley 1906-10-12 s.n. San Mateo Santa Cruz Mountain Peninsula. Mud Lakes, Coalmine Ridge, Pond 1 Comment
  POM226863  Potamogeton foliosus I. L. Wiggins 1935-8-24 8159 A San Mateo In reservoir about 2 miles east of Half Moon Bay. Comment
  JROH5513  Potamogeton illinoensis John H. Thomas 1964-10-2 10509 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake near bridge Comment
  JEPS42973  Potamogeton nodosus W. L. Jepson 1910-8-18 4165 San Mateo White House Creek Comment
  UC1099818  Potamogeton pectinatus Malcolm A. Nobs, S. Galen Smith 1949-8-25 1552 San Mateo Sharp Park Comment
  CAS-BOT-BC454050  Potamogeton pusillus subsp. pusillus W. R. Dudley 1909-10-10 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Club House, Crystal Springs Reservoir Comment
  UC1618019  Potentilla anserina Donald G. Nelson 1939-6-14 617 San Mateo 3 mi s of San Francisco County line (Skyline Boulevard, due e of Mussel Rock on the coast); Skyline Boulevard Comment
  CAS-BOT-BC141935  Potentilla anserina subsp. pacifica Robert Robertson 1954-4-17 85 San Mateo By stream near coast north of Moss Beach (Montara) 4 Comment
  CAS-BOT-BC516358  Prosartes hookeri John H. Thomas 1961-5-7 9285 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH4674  Prosartes hookeri John H. Thomas 1979-4-10 19448 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC517390  Prosartes smithii W. R. Dudley 1905-6-18 s.n. San Mateo Santa Cruz Mountain Peninsula, Butano, Deer Park Comment
  CAS-BOT-BC517397  Prosartes smithii H. L. Mason 1917-4-1 s.n. San Mateo Kings Mountain Comment
  CDA40755  Prunella vulgaris subsp. vulgaris Villegas & France 1972-8-7 PDR # 37028 San Mateo 415 Cypress Avenue, Millbrae. 0 Comment
  JROH5842  Prunella vulgaris var. vulgaris A. Lambrecht 2005-7-25 s.n. San Mateo West Menlo Park, California 43 Comment
  JROH3751  Prunus John Hunter Thomas 1981-4-5 20290 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek Comment
  CAS-BOT-BC158176  Prunus emarginata Peter H. Raven 1950-4-16 1810 San Mateo Above [Visitation] Visitacion Valley, San Bruno Mts. 182 Comment
  UC12750  Prunus emarginata J. Burtt Davy 1895-4-20 1041 San Mateo San Mateo Creek Comment
  CAS-BOT-BC154497  Prunus ilicifolia A. D. E. Elmer 1903-7-1 4773 San Mateo Pilarcitos Stone Dam Comment
  CAS-BOT-BC154502  Prunus ilicifolia Fred Hemphill 1973-4-22 838 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  JROH3746  Prunus ilicifolia subsp. ilicifolia John Hunter Thomas 1978-7-2 19246 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC154650  Prunus subcordata A. D. E. Elmer 1903-4-1 4533 San Mateo Portola Comment
  CAS-BOT-BC154657  Prunus subcordata W. R. Dudley 1904-4-10 s.n. San Mateo Alpine road, near the deep ravine bridge Comment
  CAS-BOT-BC156358  Prunus virginiana var. demissa J. I. McMurphy 1906-4-28 16 San Mateo [Corte de] Corte Madera Creek, Santa Cruz Mts. Comment
  CAS-BOT-BC356858  Pseudognaphalium californicum A. D. E. Elmer 1903-6-1 4291 San Mateo Crystal Springs Lake Comment
  JROH754  Pseudognaphalium californicum John H. Thomas 1961-6-7 9534 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH768  Pseudognaphalium californicum John Hunter Thomas 1983-6-29 22704 San Mateo Jasper Ridge Biological Preserve, Stanford University; top of Rattlesnake Rock Comment
  CAS-BOT-BC356853  Pseudognaphalium californicum Walter Knight 1963-10-7 324 San Mateo San Bruno Mountain. Cow Trough Ravine 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-BC357125  Pseudognaphalium luteoalbum Fred Hemphill 1973-5-6 766 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH785  Pseudognaphalium luteoalbum Toni Corelli 2006-8-16 324 San Mateo Jasper Ridge Biological Preserve, Stanford University. South of Road B, below Dennis Martin marker site 70 Comment
  CAS-BOT-BC344870  Pseudognaphalium luteoalbum Peter Rubtzoff 1977-4-14 8947 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  SEINET3145218  Pseudognaphalium ramosissimum L. S. Rose 1935-8-13 35568 San Mateo Salada 30 Comment
  CAS-BOT-BC361570  Pseudognaphalium stramineum L. R. Abrams; I. L. Wiggins 1939-6-3 428 San Mateo Ano Nuevo Point Comment
  JROH5642  Pseudognaphalium stramineum John Rawlings 2014-6-7 1251 San Mateo Jasper Ridge Biological Preserve, Stanford University; a few meters east of the Caretaker's Residence 106 Comment
  UCD135229  Pseudognaphalium stramineum Lewis S. Rose 1966-8-6 66079 San Mateo San Bruno Mountain, head of Colma Canyon. 121 Comment
  CAS-BOT-BC85901  Pseudotsuga menziesii Lewis S. Rose 1955-9-19 55178 San Mateo Skyline Boulevard, 7 mi. w. of Saratoga 685 Comment
  CAS-BOT-BC85913  Pseudotsuga menziesii J. I. McMurphy 1906-3-9 47 San Mateo Santa Cruz Peninsula, Santa Cruz Mts., King's Mt. 640 Comment
  POM25381  Pseudotsuga menziesii A. D. E. Elmer 1903-04 4562 San Mateo Kings Mountain. Comment
  UCR201596  Pseudotsuga menziesii June Latting 1972-4-21 s.n. San Mateo Central Coast, Santa Cruz Mountains, Pseudotsuga study site 777 Comment
  NY63873  Pseudotsuga menziesii var. menziesii L. S. Rose 1955-9-19 55178 San Mateo Skyline Boulevard, 7 miles west of Saratoga 685.8 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
  JROH1185  Psilocarphus tenellus John Hunter Thomas 1978-4-25 19146 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1193  Psilocarphus tenellus John Hunter Thomas 1989-5-9 24711 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1198  Psilocarphus tenellus John Hunter Thomas 1992-5-5 25217 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam and vicinity Comment
  JROH19  Pteridium aquilinum var. pubescens John Hunter Thomas 1985-5-22 23677 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC421316  Pterostegia drymarioides John H. Thomas 1965-4-29 10625 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  SEINET8229663  Pyrola aphylla A. D. E. Elmer 1903-1 4297 San Mateo Pescadero. Comment
  UC306551  Pyrola picta A. D. E. Elmer 1903-6-1 4297 San Mateo Pescadero Comment
  POM88668  Pyrrocoma racemosa L. R. Abrams 1901-09 2211 San Mateo Cooley Landing. Comment
  SEINET10962205  Quercus agrifolia Lewis S. Rose 1964-1 Rose 64012 San Mateo Emerald Lake, w. of Redwood City hills. 122 Comment
  CAS-BOT-BC85954  Quercus douglasii John Thomas Howell 1926-10-23 2230 San Mateo Sand Hill Road W of Stanford University Comment
  JROH2471  Quercus douglasii John H. Thomas 1968-4-19 14296 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC94271  Quercus durata Ned Cahill 1974-4-19 143 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH2484  Quercus durata var. durata John H. Thomas 1972-8-18 16149 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC105400  Quercus kelloggii James McMurphy 1909-3-20 s.n. San Mateo Woodside Comment
  HSC23995  Quercus lobata Mary Katherine Wicksten 1971-8-20 128 San Mateo Huddart Park, above Oak Area Comment
  JROH2515  Quercus lobata Josephine D. Randall 1907-3-9 130 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Road to Woodside Comment
  UCD47146  Quercus parvula var. shrevei J. M. Tucker 1946-3-2 1370 A San Mateo Road to Oakland Y.M.C.A Camp, off La Honda-Pescadero road, 6-7 miles east of Pescadero, San Mateo County, California. Comment
  CAS-BOT-BC134785  Quercus wislizeni James McMurphy 1902-5-17 s.n. San Mateo Road to Kings Mt. Comment
  CAS-BOT-BC134793  Quercus wislizeni H. L. Mason 1929-12-1 s.n. San Mateo Swanton Comment
  HSC23883  Quercus wislizeni Mary Katherine Wicksten 1971-6-16 16 San Mateo Huddart Park, dry gully by horse ring Comment
  SJSU2273  Ranunculus californicus C. W. Sharsmith 1947-4-13 6754 San Mateo Pescadero Beach near Pwscadero Point 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
  UC665800  Ranunculus californicus Ira L. Wiggins 1941-4-17 9719 San Mateo near junction of road to California Sanitarium and Woodside-Half Moon Bay road Comment
  POM268421  Ranunculus californicus Lyman Benson 1930-3-20 1953 San Mateo S San Francisco. 91 Comment
  RSA119760  Ranunculus californicus I. L. Wiggins 1929-3-24 3381 San Mateo On road to Searville Lake, back of Stanford University. Comment
  CAS-BOT-BC378539  Ranunculus californicus var. californicus John H. Thomas 1971-5-2 15828 San Mateo serpentine fields bordered by chaparral, near intersection of Canada and Edgewater roads, about 4 mi SW of center of Redwood City 305 Comment
  CAS-BOT-BC378543  Ranunculus californicus var. californicus J. H. Thomas 1954-4-25 3994 San Mateo near intersection of Stanford and Mayfield Avenues in open field which is occasionally plowed; Stanford University campus Comment
  RSA0005416  Ranunculus californicus var. cuneatus Lyman Benson 1931-3-3 2618 San Mateo Moss Beach. 15 Comment
  JROH3494  Ranunculus hebecarpus John Rawlings 2013-4-9 1158 San Mateo Jasper Ridge Biological Preserve, Stanford University; verge of Trail 11 through chaparral 144 Comment
  JEPS67906  Ranunculus lobbii L. R. Heckard and J. H. Thomas 1972-4-16 2889 San Mateo ca 1 1/2 mi s Pulgas Water Temple (along old Canada road (private), sw of Upper Crystal Springs Reservoir) 121 Comment
  RSA101003  Ranunculus lobbii George Oberlander 1950-3-18 s.n. San Mateo Upper Crystal Springs Lake, San Francisco Watershed Reserve Comment
  POM256793  Ranunculus muricatus D. D. Keck 1940-5-19 5046 San Mateo Half Moon Bay, in low, fallow fields juct N of Tow Comment
  POM148951  Ranunculus orthorhynchus var. bloomeri A. D. E. Elmer 1903-06 4665 San Mateo San Pedro. Comment
  POM282733  Ranunculus orthorhynchus var. bloomeri L. S. Rose 1934-3-11 35051 San Mateo Wet fields, Visitacion Valley Comment
  JEPS85712  Ranunculus pusillus L. R. Heckard and J. H. Thomas 1972-4-16 2890 San Mateo ca 1 1/2 mi s Pulgas Water Temple (along old Canada road (private), sw of Upper Crystal Springs Reservoir) 121 Comment
  OBI48701  Raphanus sativus S. Bagley 1969-3-28 s.n. San Mateo Overlooking the San Francisco Game Refuge 145 Comment
  POM283034  Rhamnus californica Lyman Benson 1937-7-8 8447 San Mateo Lake Searsville, Stanford, Mt. Range: Santa Cruz; Watershed: San Francisco Bay 122 Comment
  RSA100994  Rhamnus californica G. Oberlander 1949-7-30 246 San Mateo Crest of Sweeney Ridge, San Francisco Watershed reserve Comment
  UC1071558  Rhamnus californica T. Tyrrell 1928-9-26 9 San Mateo 2 mi s San Gregorio; Santa Cruz Quad. 91 Comment
  SEINET12209519  Rhamnus californica Unknown 1933-1 s.n. San Mateo On hillside between Skyline and Half Moon Bay Comment
  CAS-BOT-BC55884  Rhamnus crocea Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo Croker Hills Comment
  JROH3557  Rhamnus crocea Carl B. Wolf 1927-5-31 407 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3563  Rhamnus crocea John H. Thomas 1973-5-5 16768 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM222806  Rhamnus crocea J P Rose 1909-4-17 s.n. San Mateo Los Trancos Creek. 61 Comment
  JROH3568  Rhamnus ilicifolia John H. Thomas 1972-5-5 16078 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1121088  Rhododendron macrophyllum N. K. Carlson 1935-7-2 112 San Mateo 5 mi s of Bellvale 304 Comment
  CAS-BOT-BC56671  Rhododendron occidentale W. R. Dudley 1895-6-6 s.n. San Mateo Near Iverson's on Upper Pescadero Creek Comment
  CAS-BOT-BC437975  Ribes E. A. McGregor 1908-3-9 s.n. San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC92489  Ribes aureum var. gracillimum James McMurphy 1906-4-4 s.n. San Mateo Creek above Judge Allen's, Santa Cruz Mountains. Comment
  CAS-BOT-BC93011  Ribes californicum var. californicum Adoph Holme 1929-4-1 s.n. San Mateo Berenda Farm near Redwood City. Comment
  JROH2636  Ribes californicum var. californicum John H. Thomas 1959-2-23 7518 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC173463  Ribes malvaceum James Roof; Walter Knight; Irja Knight 1967-7-16 2072 San Mateo On north side of ridge road adjacent to Owl's Canyon 304 Comment
  SBBG33476  Ribes malvaceum A. D. E. Elmer -Mar-1903 4750 San Mateo Portola Comment
  CAS-BOT-BC173468  Ribes malvaceum Paul F. Covel 1936-4-24 281 San Mateo Skyline Blvd. Comment
  JROH2660  Ribes malvaceum var. malvaceum Arthur Spiegler 1952-4-12 64 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Searsville Lake. Comment
  CAS-BOT-BC212807  Ribes menziesii A. D. E. Elmer 1903-4-1 4496 San Mateo Portola Comment
  CAS-BOT-BC212816  Ribes menziesii Roxana S. Ferris 1920-4-23 1950 San Mateo Strawberry Bend, El Corte de Madera Creek 121 Comment
  RSA0021750  Ribes menziesii var. leptosmum John H. Thomas 1960-3-1 8538 San Mateo Near San Francisquito Creek. Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  RSA0021754  Ribes menziesii var. leptosmum A. D. E. Elmer 1903-04 4496 San Mateo Portola. Comment
  JEPS121700  Ribes menziesii var. menziesii Stella Yang 2013-5-10 San Mateo Los Troncos Open Space Preserve, Franciscan Loop Trail at Los Troncos Creek crossing Comment
  JROH2672  Ribes menziesii var. menziesii Toni Corelli 2002-8-19 248 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Trail 1. 82 Comment
  CAS-BOT-BC144609  Ribes sanguineum var. glutinosum Le Roy Abrams 1902-4-13 2333 San Mateo Crystal Springs Comment
  JROH2677  Ribes sanguineum var. glutinosum John H. Thomas 1975-5-2 17853 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2685  Ribes sanguineum var. glutinosum John Hunter Thomas 1985-4-25 23556 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway. Comment
  UC75091  Ribes sanguineum var. glutinosum C. F. Baker 1902-1-15 241 San Mateo w side Kings Mountain Comment
  CAS-BOT-BC168725  Ribes victoris Eric Walther 1919-2-23 s.n. San Mateo Woodside Comment
  JROH1212  Rigiopappus leptocladus John Rawlings,Toni Corelli 2007-5-2 0907 San Mateo Jasper Ridge Biological Preserve, Stanford University. Upper Big Inlet drainage in serpentine near NW corner of West Serpentine Chaparral. 167 Comment
  RSA0110964  Romanzoffia californica L. R. Abrams 1915-3-23 5568 San Mateo Crystal Springs - San Mateo Road on rocky bluff. Comment
  SBBG29827  Romanzoffia suksdorfii W. R. Dudley 1909-4-27 San Mateo ponds between Woodside and Crystal Springs Reservoir Comment
  UC1084381  Rorippa G. Thomas Robbins 1937-4-11 81 San Mateo along Skyline Boulevard near County Jail (s of San Francisco); s of San Francisco Comment
  SEINET5570005  Rorippa nasturtium-aquaticum H. S. Gentry 1931-1 100 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC389728  Rosa J. Lovelle 1973-8-19 127 San Mateo Pomponio Canyon Comment
  CAS-BOT-BC147627  Rosa californica Elizabeth McClintock; Paul Reeberg 1988-4-30 s.n. San Mateo Buckeye Canyon Comment
  CAS-BOT-BC146693  Rosa gymnocarpa James B. Roof 1965-4-25 s.n. San Mateo Head of Owl's Canyon on ridge Comment
  CAS-BOT-BC146698  Rosa gymnocarpa W. R. Dudley 1906-5-8 65 San Mateo Near Crystal Springs Lake, Santa Cruz Mts. 91 Comment
  CAS-BOT-BC389723  Rosa gymnocarpa M. K. Wicksten 1971-6-24 127 San Mateo Huddart Pk. Comment
  CAS-BOT-BC146702  Rosa gymnocarpa J. H. Thomas 1950-4-27 1691 San Mateo Purisima Road near Skyline Blvd. Comment
  SEINET10736898 Image available Rosa gymnocarpa var. gymnocarpa Adolph D. E. Elmer Elmer 4923 San Mateo Pescadero. Comment
  NY415871  Rosa piscatoria A. D. E. Elmer 05 1903 4923 San Mateo Pescadero Comment
  UCD92298  Rostraria cristata John Thomas Howell 1973-4-28 49145 San Mateo Burlingame. Comment
  UCD113862  Rubus parviflorus Carolyn Lundquist 1994-5-30 25 San Mateo Henrik Ibsen Park, Woodside, 13800 Skyline Blvd. 609 Comment
  SJSU10411  Rubus spectabilis R. B. Blake 1966-4-10 San Mateo Gazos Cr, Big Basin State Park Comment
Read comments
Dec 7 2010
  RSA112364  Rubus spectabilis var. franciscanus W. R. Dudley 1900-3-16 s.n. San Mateo By bridge over Pilarcitos Rd. (Spanishtown and San Mateo). 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-BC157087  Rubus ursinus James McMurphy 1902-3-22 s.n. San Mateo Above Portola Comment
  LA208244  Rubus ursinus Ira L. Wiggins; 1929-7-4 3775 San Mateo 4 mi. W. of La Honda on hill road to Pescadero Beach Comment
  POM261520  Rubus ursinus Alice Eastwood, John T. Howell 1938-6-26 6055 San Mateo Near Pescadero. Comment
  CHSC39822  Rumex acetosella Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  CAS-BOT-BC422089  Rumex acetosella Elizabeth McClintock; Philip Wheeler 1967-5-15 s.n. San Mateo San Bruno Mountain. East side of mountain, above Harold Ave., Brisbane. Grassy slope above Philip Wheeler's house. Comment
  CAS-BOT-BC422091  Rumex acetosella Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain. Slope above Hillside Blvd., South San Francisco. Comment
  CAS-BOT-BC422092  Rumex acetosella J. H. Thomas 1949-4-6 s.n. San Mateo About 4 miles south of Daly City. Comment
  RSA128689  Rumex acetosella Peter H. Raven 1950-6-3 2221 San Mateo along Millbrae Ave., Millbrae. 61 Comment
  RSA17951  Rumex acetosella Carl B. Wolf 1927-6-4 s.n. San Mateo Summit of La Honda Grade (Pollen for Dr. Malsger - San Francisco) San Mateo County Comment
  UCD101037  Rumex acetosella E. M. Johnston 1916-6-1 11 San Mateo Millbrae. Comment
  UCSC007778  Rumex crassus Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  UC1101234  Rumex crispus Malcolm A. Nobs and S. Galen Smith 1949-8-25 1572 San Mateo s of Rockaway Beach Comment
  CAS-BOT-BC433355  Rumex crispus Walter Knight; Irja Knight 1965-4-24 s.n. San Mateo San Bruno Mountain. Point San Bruno Comment
  CAS-BOT-BC433365  Rumex crispus Margaret A. Barry 1938-6-22 169 San Mateo On Coal Mine Ridge Comment
  UC1101213  Rumex maritimus Malcolm A. Nobs and S. Galen Smith 1949-8-26 1590 San Mateo mouth of Pescadero Creek Pescadero Creek Comment
  SEINET4182631  Rumex maritimus var. persicarioides K. Thorne, J. chandler 1986-7-25 4948 San Mateo Half Moon Bay, 2 miles south of Moss Beach at Dune Beach Comment
  CAS-BOT-BC433750  Rumex persicarioides W. R. Dudley 1896-11-18 s.n. San Mateo Santa Cruz Mountain Peninsula. Spanishtown beach near mouth of the Pilarcitos. Comment
  JROH3307  Rumex pulcher John Hunter Thomas 1981-5-19 20607 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC433997  Rumex salicifolius Josephine D. Randall 1907-7-23 291 San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  SD88535  Rumex salicifolius Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of Half Moon Bay Comment
  JROH2216  Rupertia physodes John H. Thomas 1976-5-26 18158 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC279586  Ruppia maritima W. A. Setchell 1925-8-29 San Mateo Laguna de Salada Comment
  CAS-BOT-BC454176  Ruppia maritima H. L. Mason 1921-6-2 s.n. San Mateo Pebble Beach near Pescadero Comment
  RSA159420  Sagina apetala John H. Thomas 1961-5-14 9371 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  SEINET12002759  Salix bonplandiana McCallum 1933-1 s.n. San Mateo near Searsville Lake Comment
  OBI75779  Salix exigua Lewis S. Rose 1965-3-8 65003 San Mateo Searsville Lake 122 Comment
  SJSU7513  Salix exigua Lewis S. Rose 1965-3-8 San Mateo Searsville Lake 121 Comment
  JROH3847  Salix exigua var. hindsiana John Hunter Thomas 1981-4-23 20494 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of lake Comment
  CAS-BOT-BC125373  Salix lasiandra var. lasiandra W. R. Dudley 1903-5-1 s.n. San Mateo Iverson's by Peters Creek Comment
  CAS-BOT-BC107127  Salix lasiolepis Walter Knight; Irja Knight 1965-2-28 867 San Mateo Colma Canyon - San Bruno Mt. 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
  CAS-BOT-BC107132  Salix lasiolepis Ira L. Wiggins 1976-4-20 22178 San Mateo Along N bank of San Francisquito Creek, near Pope Street Bridge, Menlo Park Comment
  JROH3862  Salix lasiolepis Lewis S. Rose 1965-3-8 65004 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake stream banks Comment
  RSA176658  Salix lasiolepis Peter H. Raven 1964-2-16 18742 San Mateo Just south of Lake San Andreas. Comment
  RSA184897  Salix lasiolepis L. S. Rose 1965-3-8 65004 San Mateo Searsville Lake. 122 Comment
  UC481897  Salix lasiolepis C. R. Ball and G. W. Hendry 1931-2-22 15 San Mateo in arroyo near San Gregorio Creek (100 m from ocean); San Gregorio Comment
  CAS-BOT-BC108253  Salix lasiolepis var. bigelovii Alice Eastwood 1920-3-15 s.n. San Mateo San Bruno Hills Comment
  CAS-BOT-BC108258  Salix lasiolepis var. bigelovii John H. Thomas 1974-5-7 17316 San Mateo San Bruno Mountain - along Guadalupe Parkway opposite school. Western side of mountain. Comment
  CAS-BOT-BC124479  Salix lasiolepis var. lasiolepis Walter Knight; Irja Knight 1987-10-16 6070 San Mateo San Bruno Mt., 100 yds from corner of Hillside Blvd. and Kearney St. Comment
  CAS-BOT-BC124482  Salix lasiolepis var. lasiolepis Walter Knight; Irja Knight 1964-5-4 986 San Mateo Abandoned quarry south side of Colma Creek in Colma Canyon Comment
  CAS-BOT-BC124494  Salix lasiolepis var. lasiolepis Margaret A. Barry 1938-5-6 s.n. San Mateo Los Trancos Creek near Coal Mine Ridge Comment
  CAS-BOT-BC128243  Salix lucida James McMurphy 1906-3-9 s.n. San Mateo By water trough, Kings Mountain Comment
  SBBG33942  Salix lucida subsp. lasiandra L. S. Rose 1965-3-8 65002 San Mateo Searsville Lake 121 Comment
  UC5090  Salix scouleriana Harry A. Dutton 1899-12-10 San Mateo above Searsville (on rd. below Buck Horn Ranch) Comment
  UC846969  Salix scouleriana Lewis S. Rose 1934-2-10 34025 San Mateo Skyline Blvd. 4 mi. s. of King's Mt. Comment
  CAS-BOT-BC126508  Salix sitchensis A. D. E. Elmer 1903-5-1 4917 San Mateo Portola Comment
  CAS-BOT-BC126519  Salix sitchensis W. R. Dudley 1898-4-24 s.n. San Mateo El Corte de Madera Creek Comment
  CAS-BOT-BC166962  Salix sitchensis Peter Rubtzoff 1976-3-28 8452 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CDA33774  Salix sitchensis D. G. Kelch 2011-3-13 11 .051 San Mateo Pacifica. Along sea bluffs Comment
  SEINET12003697  Salix sitchensis W. R. Dudley 1897-1 s.n. San Mateo Santa Cruz Peninsula, bank of Pescedero Creek below Peter's Creek Comment
  RSA152266  Salvia spathacea John H. Thomas 1961-5-7 9299 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  UC138837  Salvia spathacea C. F. Baker 1903-4-6 1878 San Mateo San Bruno Hills San Francisco Comment
  RSA800280  Sambucus callicarpa Peter Rubtzoff 1988-6-9 9925 San Mateo San Bruno Mountains, upper part of East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC246014  Sambucus nigra subsp. caerulea Fred Hemphill 1973-5-6 754 San Mateo North of Malabar Road and Melendy Drive, San Carlos 207 Comment
  CAS-BOT-BC246019  Sambucus nigra subsp. caerulea Walter Knight; Walter Knight 1963-6-24 s.n. San Mateo Bottom of Quarry 4 and west ravine, San Bruno Mountain Comment
  CAS-BOT-BC246023  Sambucus nigra subsp. caerulea George Oberlander 1950-4-2 586 San Mateo Sawyer Ridge, San Francisco Watershed Reserve Comment
  JROH1676  Sambucus nigra subsp. caerulea John Hunter Thomas 1989-5-9 24724 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC889773  Sambucus racemosa var. racemosa L. R. Abrams 1916-3-26 5589 San Mateo road between San Mateo and Half Moon Bay (coast side of grade) Comment
  UCD163785  Sambucus racemosa var. racemosa Peter Rubtzoff 1988-6-9 9925 San Mateo San Bruno Mountains, upper part of East Fork Colma Creek Canyon. Comment
  UCSB11444  Sambucus racemosa var. racemosa Olson, Jim 1962-4-17 San Mateo 5 miles southeast of Halfmoon Bay on road to San Mateo 45 Comment
  POM133576  Sanicula arctopoides A. D. E. Elmer 1900-04 2365 San Mateo Kings Mountain. Comment
  RSA187473  Sanicula arctopoides John H. Thomas 1964-4-30 10347 San Mateo San Bruno Mtn in northern part. Northern Coastal Scrub of Munz and Keck 305 Comment
  UCD166148  Sanicula arctopoides Jack Major; M. Forde and S. Bamberg 1962-4-3 733 San Mateo 10 miles south of Ano Nuevo Pt., above Scott Creek. (Exact location unknown. Coordinates estimated by label maker). 115 Comment
  SEINET12121123  Sanicula arctopoides E. McClintock, Knight, W.; Knight, I. 1982-1 4642 San Mateo upper elevations of San Bruno Mountain, especially around parking lot area Comment
  SEINET13945102 Image available Sanicula arctopoides Lewis S. Rose 1965-1 65012 San Mateo San Bruno Mts, N end. Ca 400 ft 122 Comment
  SEINET13945105 Image available Sanicula arctopoides Ray Smith 1915-1 sn San Mateo Burlingame. Comment
  JROH324  Sanicula bipinnatifida John H. Thomas 1975-4-5 17708 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC1984  Sanicula crassicaulis A. Goekler 1929-5-10 San Mateo Moss Beach. Comment
  JROH331  Sanicula crassicaulis John H. Thomas 1967-5-12 12877 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH336  Sanicula crassicaulis John H. Thomas 1974-4-13 17152 San Mateo Jasper Ridge Biological Preserve, Stanford University; near area H Comment
  POM319917  Sanicula crassicaulis Barbara Shervanick 1973-4-1 817 San Mateo San Bruno Mt. at first summit at end of Crocker Rd. Comment
  CAS-BOT-BC166668  Satureja douglasii Peter Rubtzoff 1975-10-24 8429 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; (tributary of East Fork Colma Creek). San Bruno Mountains. Comment
  POM283188  Satureja douglasii Lyman Benson 1930-5-26 s.n. San Mateo Stanford University. Lake Searsville. 152 Comment
  CAS-BOT-BC218935  Schinus molle Ira L. Wiggins 1980-8-29 22253 San Mateo North bank of San Francisquito Creek, ca 125 M upstream from Pope Street bridge, Menlo Park Comment
  JROH4413  Schoenoplectus acutus var. occidentalis John H. Thomas 1967-5-31 12930 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of lake. Comment
  UC1100796  Scirpus californicus Herbert L. Mason 1946-8-28 13092 San Mateo Pond Highway 5 about 3 mi s Daly City Road; s of Daly City Road, pond Comment
  UCD23292  Scirpus microcarpus Alan T. Whittemore 1976-5-29 110 San Mateo Crystal Springs Canyon, about 1/2 mile below (East of) dam. 39 Comment
  RSA100983  Scoliopus bigelovii G. Oberlander 1949-4-17 87 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve. Comment
  SEINET12057731  Scoliopus bigelovii F. H. Utech 1988-5-17 88 -142 San Mateo 0.5 mi from junction of Kings Mt. Road & CA 35 on former enroute to Woodside, Skyline Hiking Trail 580 Comment
  SEINET5570939  Scoliopus bigelovii H. S. Gentry 1931-1 20 San Mateo Collected 1.5 miles W of San Mateo, Half-Moon Bay Road. Comment
  JROH5461  Scribneria bolanderi John Rawlings 2008-5-4 1033 San Mateo Jasper Ridge Biological Preserve, Stanford University. Vicinity of Phalaris californica seep. 171 Comment
  JROH4126  Scrophularia californica John H. Thomas 1975-6-5 17929 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near lowflow crossing Comment
  RSA187282  Scrophularia californica John H. Thomas 1965-4-29 10603 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  POM64273  Scutellaria tuberosa C. F. Baker 1902-4-4 447 San Mateo Crystal Springs Lake Comment
  UC25840  Scutellaria tuberosa Maclean 1027 San Mateo near Pescadero Comment
  CAS-BOT-BC64100  Sedum radiatum subsp. radiatum W. R. Dudley 1894-3-26 s.n. San Mateo San mateo trap. hills. Comment
  SEINET10808551  Senecio Harold W. Rickett 1928-7-10 Rickett s.n. San Mateo La Honda, CA. Comment
  JROH1217  Senecio aronicoides John H. Thomas 1958-5-10 7163 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC363396  Senecio aronicoides Le Roy Abrams 1901-5-11 1612 San Mateo Colma Comment
  RSA0012757  Senecio aronicoides Lyman Benson 1930-5-26 2129 -A San Mateo Stanford University, Lake Searsville. 152 Comment
  RSA0012763  Senecio aronicoides C. F. Baker 1903-4-6 1900 San Mateo San Bruno Hills, San Francisco. [San Mateo] Comment
  RSA0013329  Senecio aronicoides P. H. Raven 1950-4-6 s.n. San Mateo Colma Canyon, San Bruno Mts. Comment
  JROH687  Senecio minimus Toni Corelli 2008-3-9 345 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 13, south of Leonard's Bridge 106 Comment
  RSA152057  Senecio sylvaticus John H. Thomas 1961-5-7 9272 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  JROH1226  Senecio vulgaris John H. Thomas 1973-4-14 16558 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC364630  Senecio vulgaris Ira L. Wiggins 1973-6-24 22030 San Mateo Bed of San Francisquito Creek, about 60 m above Pope Street bridge, along line between Santa Clara and San Mateo Counties Comment
  CAS-BOT-BC364637  Senecio vulgaris John H. Thomas 1963-5-20 10146 A San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC80293  Sequoia sempervirens C. F. B. 1902-1-15 319 San Mateo West side King's Mountain Comment
  CAS-BOT-BC80297  Sequoia sempervirens James McMurphy 1910-8-1 s.n. San Mateo San Francisquito Creek - Stone Crusher Comment
  CAS-BOT-BC85780  Sequoia sempervirens W. R. Dudley 1897-1-1 s.n. San Mateo Santa Cruz Mountain Peninsula, Butano Creek Comment
  POM176867  Sequoia sempervirens E. G. Dudley 1904-1-21 74 San Mateo Santa Cruz Peninsula: Canada de Raymundo, Santa Cruz Mountains 274 Comment
  POM193078  Sequoia sempervirens W. R. Dudley 1895-10-19 s.n. San Mateo By Summit Spr. Road, Kings Mountain, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC85782  Sequoia sempervirens unspecified 1901-1-27 s.n. San Mateo Mountain side West of Preston Place Comment
  MACF019653  Sequoia sempervirens Barbara Gittins 1975-11-30 San Mateo Hwy. 1, 15 mi. N. Watsonville, San Mateo County, California Comment
  RSA170453  Sequoia sempervirens Mark Parratt 1963-2-2 512 San Mateo Santa Cruz Mountains; Big Basin Redwoods State Park, near park headquarters 183 Comment
  SEINET10612343  Sequoia sempervirens Paulson 1914-10-21 PAULSON s.n. 1914 San Mateo Kings Mountain near woodside. Herbarium of Leland Stanford Jr. University. Plants of the Santa Cruz Mountain Penninsula. Comment
  UCR121586  Sherardia arvensis George K. Helmkamp, E. A. Helmkamp 1999-6-28 4965 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
  JROH3826  Sherardia arvensis John H. Thomas 1955-5-6 4996 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small draw on south side of ridge. 182 Comment
  SBBG30044  Sidalcea diploscypha L. S. Rose 1935-6-9 San Mateo Emerald Lake, W of Redwood City Comment
  SEINET11982183  Sidalcea malviflora G. A. McCallum 1933-1 s.n. San Mateo back of Stanford Campus Comment
  JEPS127779  Sidalcea malviflora subsp. laciniata Adam C. Schneider with C. Matt Guilliams 2013-3-9 32 San Mateo Comment
  UC1300824  Sidalcea malviflora subsp. laciniata Helen K. Sharsmith 1963-2-16 5134 San Mateo above Daly City (lower open slopes of San Bruno Mountain); San Francisco Bay Region, San Bruno Mountain 106 Comment
  JEPS67241  Sidalcea malviflora subsp. malviflora W. L. Jepson 1921-4-3 9109 San Mateo canyon near Colma (Colma Canyon); n. San Mateo Co., Colma Canyon Comment
  JROH2972  Sidalcea malviflora subsp. malviflora John Hunter Thomas 1981-4-21 20465 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA7439  Sidalcea malviflora subsp. malviflora J. T. Howell 1933-4-9 10974 San Mateo 2 miles N. of Pigeon Pt. Comment
  UC18911  Sidalcea malviflora subsp. malviflora Ivar Tidestrom 1894-3-22 San Mateo Comment
  JEPS127818  Silene gallica Adam C. Schneider with C. Matt Guilliams 2013-4-7 81 San Mateo Crystal Springs Reservoir Comment
  CAS-BOT-BC386848  Silene gallica Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  JROH1736  Silene gallica John Hunter Thomas 1981-5-14 20584 San Mateo Jasper Ridge Biological Preserve, Stanford University; near edge of lake below Searsville Lab Comment
  JROH1740  Silene gallica John Hunter Thomas 1986-4-24 23978 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Escobar Gate Comment
  POM286434  Silene gallica Lyman Benson 1931-4-26 2762 San Mateo Behind Stanford U., Brookside Park, Santa Cruz mtn range. 244 Comment
  UCD98646  Silene gallica W. A. Harvey; J. M. Tucker 1948-6-28 1696 San Mateo 3 miles north of Pescadero. Comment
  CAS-BOT-BC389201  Silene laciniata subsp. californica Ned Cahill 1974-5-18 283 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC389196  Silene laciniata subsp. californica L. R. Abrams 1909-5-26 4237 San Mateo Santa Cruz Peninsula. Between Woodside and Crystal Springs Comment
  RSA191939  Silene scouleri R. F. Thorne, Percy C. Everett 1963-6-9 32235 San Mateo On top of San Bruno Mountain. 335 Comment
  CAS-BOT-BC389897  Silene scouleri subsp. scouleri Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC74987  Sinapis arvensis Fred Hemphill 1973-4-8 615 San Mateo San Carlos. North of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC74989  Sinapis arvensis Fred Hemphill 1973-5-6 752 San Mateo San Carlos. North of Malabar Road and Melendy Drive. 207 Comment
  CHSC39827  Sisyrinchium bellum Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  POM169077  Sisyrinchium bellum C. F. Baker 1903-4-8 3012 San Mateo San Andreas Lake Comment
  POM169079  Sisyrinchium bellum C. F. Baker 1902-3-30 428 San Mateo Crystal Springs Lake. Comment
  IRVC9060  Sisyrinchium bellum P. W. Rundel 1963-6-11 1129 San Mateo San Fransisco Bay drainage area; Old La Honda Road. Santa Cruz Mountain Range 305 Comment
  SJSU10457  Sisyrinchium bellum L. S. Chan 1955-4-9 San Mateo foothills 2 mi W of san Carlos Comment
  UC1577337  Smilacina racemosa Cynthia DiGiovanni 1971-4-4 19 San Mateo Alpine Road Menlo Park (foothills) Comment
  RSA523368  Solanum douglasii Gordon H. True Jr. 1937-7-23 806 San Mateo North of Sharpe Park. 15 Comment
  UCD126847  Solanum furcatum John H. Thomas 1961-5-7 9302 San Mateo San Bruno Mountain in northern part of county. 304 Comment
  NY821395  Solanum nigrum L. Abrams 1939-6-3 425 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC58480  Solanum umbelliferum F. Hemphill 1973-3-17 616 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CHSC1938  Solanum umbelliferum V. Holt 1942-6-15 San Mateo Half Moon Bay. Comment
  JROH4188  Solanum umbelliferum John H. Thomas 1968-3-17 14192 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA127358B  Solanum umbelliferum Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mts. overlooking Daly City near San Francisco. Comment
  SEINET3162583  Solanum umbelliferum L. S. Rose 1939-2-26 39016 San Mateo Emerald Lake 183 Comment
  POM280568  Solanum umbelliferum Arthur L. Cohen 1935-4-21 605 San Mateo Jasper Ridge. Stanford U. Santa Cruz Mt Range. Comment
  RSA675329  Solidago californica L. S. Rose 1932-10-12 32669 San Mateo Kings Mountain. Comment
  SEINET3388313 Image available Solidago californica Lewis S. Rose 1932-10-12 32669 San Mateo Kings Mountain Comment
  CDA8732  Solidago canadensis A. Roach 1972-11-17 San Mateo Railroad right-of-way, South San Francisco. 0 Comment
  SD27769  Solidago canadensis subsp. elongata Carl B. Wolf 1927-6-29 568 San Mateo on the coast 3 mi. S. of San Gregorio. Comment
  CAS-BOT-BC365746  Solidago spathulata Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo San Bruno Mountain. Colma Canyon near old quarry Comment
  JEPS27367  Solidago spathulata Rimo Bacigalupi with J. Roof and L. Heckard 1961-4-24 7627 San Mateo on lateral ridge below and se of end of paved ridge-top road just e KRON television tower and station (on Guadalupe Valley side of the summit of San Bruno Mountain); Guardalupe Valley side of summit San Bruno Mountain 304 Comment
  CAS-BOT-BC365187  Solidago velutina subsp. californica Phillip C. Wheeler 1965-8-16 s.n. San Mateo San Bruno Mountain. Lower April Brook Comment
  CAS-BOT-BC365931  Soliva sessilis Walter Knight; Irja Knight 1964-5-19 626 San Mateo San Bruno Mountain. On N. Power Line Ridge Comment
  JROH1247  Soliva sessilis John Hunter Thomas 1983-5-23 22249 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack side & low-flow crossing Comment
  CAS-BOT-BC374494  Sonchus asper Fred Hemphill 1973-5-14 821 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JEPS128402  Sonchus asper subsp. asper Adam C. Schneider 2013-5-17 135 San Mateo Crystal Springs Reservoir. Comment
  JROH1262  Sonchus oleraceus John H. Thomas 1974-4-6 17092 San Mateo Jasper Ridge Biological Preserve, Stanford University; west side of dam Comment
  CAS-BOT-BC236583  Sorghum halepense Phillip C. Wheeler 1965-6-19 s.n. San Mateo Brisbane Lagoon, San Bruno Mountain Comment
  CAS-BOT-BC236625  Spartina foliosa Helen L. Dale 1919-10-1 s.n. San Mateo Salt marshes below Palo Alto, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC390209  Spergularia bocconi Alice Eastwood 1921-7-17 s.n. San Mateo Grenada Comment
  CAS-BOT-BC390454  Spergularia macrotheca var. macrotheca J. H. Thomas 1954-5-28 4244 San Mateo Guadalupe Valley, about 2 miles south of San Francisco - San Mateo County line 30 Comment
  CAS-BOT-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-BC390699  Spergularia rubra Ira L. Wiggins 1974-7-27 22108 San Mateo Crest of northerly bank of San Francisquito Creek, opposite 1455 Woodland Avenue, Menlo Park Comment
  RSA446594  Stachys ajugoides E. A. Purer 1933-8-13 5425 San Mateo Santa Clara Valley, near Belmont. Comment
  UC306581  Stachys ajugoides var. ajugoides A. D. E. Elmer June, 1903 4260 San Mateo Crystal Springs Lake Comment
  UC702529  Stachys ajugoides var. ajugoides L. S. Rose 1941-10-24 41469 San Mateo Belmont 3 Comment
  CDA41030  Stachys albens Wm. Davis 1964-6-29 s.n. San Mateo Brown prop., San Bruno. 0 Comment
  HSC23942  Stachys bullata Mary Katherine Wicksten 1971-6-15 50 San Mateo Huddart Park near horse ring Comment
  JEPS82539  Stachys bullata Roger Raiche 1984-5-13 40151 San Mateo San Pedro Creek Montara Mt. 30 Comment
  JROH2906  Stachys bullata John Hunter Thomas 1983-6-29 22699 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC100826  Stachys bullata J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  UC25937  Stachys bullata J. Burtt Davy 1895-4-20 1036 San Mateo Lake San Andreas Comment
  UCLA71403  Stachys bullata Ira L. Wiggins 1929-7-4 3783 San Mateo 4 mi w La Honda (on hill road to Pescadero) Comment
  SJSU15310  Stachys bullata Vince Ortisi 1975-9-27 3 San Mateo Saunders Shingle Mill (historical marker) off Tunitus Creek road. 457 Comment
  UCD126015  Stachys bullata J. D. Skoss 1948-8-22 97 San Mateo San Vicente Canyon, near Montara. Comment
  SEINET3559385 Image available Stachys pycnantha Lewis S. Rose 1934-5-27 34279 San Mateo Emerald Lake. Comment
  SEINET13948127 Image available Stachys rigida Lewis S. Rose 1950-1 50139 San Mateo Emerald Lake region, alt ca 800 ft. hills W of Redwood City 244 Comment
  RSA785892  Stachys rigida subsp. quercetorum Peter Rubtzoff 1977-6-21 9063 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon, near upper rim. 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
  CAS-BOT-BC394061  Stellaria media Fred Hemphill 1973-3-9 641 San Mateo San Carlos; Chaparral area north of Malabar Rd. and Melendy Dr. 243 Comment
  JEPS51122  Stellaria media W. L. Jepson 1920-3-14 8427 San Mateo Burlingame Comment
  CAS-BOT-BC394062  Stellaria media Fred Hemphill 1973-3-9 641 San Mateo 347 Alberta Way, Hillsborough (1 mile from Skyline Blvd.) Comment
  JROH1777  Stellaria media J. H. Thomas 1963-2-21 10021 San Mateo Jasper Ridge Biological Preserve, Stanford University; along old road at Westridge end of ridge Comment
  UC1536756  Stephanomeria elata G. H. True Jr. 1937-7-31 830 San Mateo near Skyline Blvd. (Alpine Road) 182 Comment
  CAS-BOT-BC375211  Stephanomeria elata Elizabeth McClintock; Walter Knight; Irja Knight 1967-8-1 s.n. San Mateo San Bruno Mountain. South side of Ridge Road about 200 yards south of Parking Lot Comment
  JROH5391  Stipa miliacea var. miliacea Toni Corelli 2004-7-14 280 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 13, In causeway, on south side of Leonard's bridge. 106 Comment
  JROH5332  Stipa pulchra Duncan M. Porter 1960-5-5 685 San Mateo Jasper Ridge Biological Preserve, Stanford University. Meadow near crest of N-facing slope above Webb Ranch. Comment
  JROH5337  Stipa pulchra W. Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By Searsville Lab. Comment
  CAS-BOT-BC423011  Stylomecon heterophylla W. R. Dudley 1905-5-13 s.n. San Mateo Santa Cruz Mountain Peninsula. S.W. of San Mateo Comment
  CAS-BOT-BC423012  Stylomecon heterophylla A. D. E. Elmer 1903-4-1 4921 San Mateo Spanishtown Comment
  SD38069  Stylomecon heterophylla Edith A. Purer 1933-5-5 3630 San Mateo Woodside Road. Comment
  CAS-BOT-BC271650  Symphoricarpos albus var. laevigatus Elizabeth McClintock 1964-2-16 s.n. San Mateo Lowe part of Radio Road, San Bruno Mountain Comment
  RSA3068  Symphoricarpos albus var. laevigatus C. B. Wolf 1931-8-20 2325 San Mateo Los Trancos Creek, 2 miles back of Stanford University, near Schenkel's Camp. 91 Comment
Read comments
Sep 30 2011
  RSA770504  Symphoricarpos albus var. laevigatus Lyman Benson 1937-7-25 8466 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  CAS-BOT-BC237059  Symphoricarpos mollis Ned Cahill 1974-5-13 254 San Mateo Near the intersection of Canada and Edgewood Roads, about 3 mi. westward from REdwood City Comment
  CAS-BOT-BC237069  Symphoricarpos mollis Fred Hemphill 1973-4-22 741 San Mateo Area north of Malabar Road and Melendy Drive, San Carlos 207 Comment
  HSC23934  Symphoricarpos mollis Mary Katherine Wicksten 1971-7-15 173 San Mateo Huddart Park, on Rd. to Family Campground. Comment
  CAS-BOT-BC99088  Symphyotrichum chilense Josephine D. Randall 1907-7-23 54 San Mateo Near Crystal Springs Lake - Santa Cruz Peninsula Comment
  CAS-BOT-BC99100  Symphyotrichum chilense Lewis S. Rose 1966-8-15 66083 San Mateo Pillar Point 1 Comment
  JROH526  Symphyotrichum chilense John Hunter Thomas 1982-9-12 21157 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD30757  Symphyotrichum chilense Edith A. Purer 1933-8-25 5521 San Mateo Spring Valley, along roadside Comment
  OBI59917  Symphyotrichum chilense David J. Keil 1988-11-19 21201 San Mateo Highway 1, south of Half Moon Bay 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
  RSA18325  Tellima grandiflora Carl B. Wolf 1929-5-10 3710 San Mateo La Honda. Santa Cruz Mts. Comment
  UCR121562  Tellima grandiflora George K. Helmkamp, E. A. Helmkamp 1999-6-28 4971 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  CAS-BOT-BC447470  Tellima grandiflora Walter Knight; Irja Knight 1964-5-30 596 San Mateo Colma Canyon up creek from indian Head Rock. Comment
  CAS-BOT-BC447477  Tellima grandiflora W. R. Dudley 1894-5-27 s.n. San Mateo Near top of King's Mt. Comment
  CAS-BOT-BC438267  Tetragonia tetragonoides Walter Knight; Irja Knight 1965-4-24 1081 San Mateo San Bruno Mountain. Near dumps at west end of mt. Comment
  CAS-BOT-BC438271  Tetragonia tetragonoides Saichi Kawahara 1969-12-3 1739 San Mateo Mouth of Ana [Ano] Nuevo Creek Comment
  CAS-BOT-BC399838  Thalictrum polycarpum Margaret A. Barry 1938-4-21 248 San Mateo By Los Trancos Creek near Coal Mine Ridge Comment
  CAS-BOT-BC399844  Thalictrum polycarpum W. R. Dudley 1904-4-10 s.n. San Mateo Santa Cruz Mountain Peninsula. Alpine Road, Black Mt. Comment
  CAS-BOT-BC399849  Thalictrum polycarpum Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo San Bruno Mountain Comment
  SBBG68849  Thermopsis californica var. californica S. W. Hutchinson -Apr-1927 San Mateo Redwood City 2 Comment
  UC16389  Thermopsis macrophylla var. macrophylla Alice Eastwood April 1896 San Mateo road to Crystal Springs Comment
  CAS-BOT-BC66664  Thysanocarpus curvipes John H. Thomas 1971-4-3 15745 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JROH1596  Thysanocarpus curvipes John Hunter Thomas 1982-4-4 20819 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH1602  Thysanocarpus curvipes John Hunter Thomas 1983-4-21 21632 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC66681  Thysanocarpus curvipes Walter Knight; Irja Knight 1967-5-1 s.n. San Mateo San Bruno Mountain. Owl's Canyon. Comment
  RSA17959  Tiarella trifoliata var. unifoliata L. A. Waitzinger 1927-8-14 722 San Mateo Islam Camp near La Honda. Santa Cruz Mts. Comment
  JROH380  Torilis arvensis John Hunter Thomas 1992-5-14 25230 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat ramp Comment
  JROH404  Torilis nodosa John Hunter Thomas 1991-5-2 25021 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC23958  Torilis nodosa Mary Katherine Wicksten 1971-6-17 62 San Mateo Huddart Park, above Redwood Shelter Comment
  JROH383  Torilis nodosa John Hunter Thomas 1980-5-13 19966 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH393  Torilis nodosa John Hunter Thomas 1986-5-1 23991 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC754285  Torreya californica Ira L. Wiggins 1945-5-5 11160 San Mateo about 1 mi above La Honda (along La Honda Creek); La Honda Creek 152 Comment
  JROH184  Toxicodendron diversilobum John H. Thomas 1974-4-6 17091 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4758  Toxicoscordion fremontii John H. Thomas 1973-4-14 16553 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC57068  Tragopogon porrifolius Steven Triano 1988-5-24 190 San Mateo On the sw corner of the jct. of Portola Road and Old La Honda Road, ca 3.2 mi s of Woodside. 115 Comment
  JROH1288  Tragopogon porrifolius John H. Thomas 1977-5-14 18606 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR12092  Tragopogon porrifolius Coleta A. Lawler 1964-4-19 50 San Mateo Skyline Blvd. 1.1 mi south of junction with College St. Near power line station, c. 5 mi west of Burlingame Comment
  CAS-BOT-BC377136  Tragopogon porrifolius W. R. Dudley 1897-5-12 s.n. San Mateo Santa Cruz Peninsula. On road from Bay to Menlo Park Comment
  RSA128596  Tragopogon porrifolius P. H. Raven 1950-6-3 2213 San Mateo along Millbrae Ave., Millbrae. 61 Comment
  JROH3391  Trientalis latifolia John H. Thomas 1973-5-5 16764 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18333  Trientalis latifolia Carl B. Wolf 1929-5-6 3702 San Mateo Near E base La Honda Grade, Santa Cruz Mts. Comment
  UCSC010359  Trifolium Dylan M. Neubauer 2016-5-19 690 San Mateo (SnFrB) Santa Cruz Mountains, headwaters of Waterman Creek, w of Hwy 9 423 Comment
  UCSC010360  Trifolium Dylan M. Neubauer 2016-5-19 690 San Mateo (SnFrB) Santa Cruz Mountains, headwaters of Waterman Creek, w of Hwy 9 423 Comment
  JROH2227  Trifolium albopurpureum John Hunter Thomas 1980-4-10 19868 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET3523144 Image available Trifolium albopurpureum Lewis S. Rose 1933-5-17 33172 San Mateo Redwood City. Comment
  SEINET11173447 Image available Trifolium albopurpureum A. A. Heller 1907-5-23 8554 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  SEINET11173562 Image available Trifolium barbigerum A. A. Heller 1905-5-15 7842 San Mateo Near Alma Comment
  SEINET881659 Image available Trifolium bicephalum A. D. E. Elmer 1903-1 4812 San Mateo San Pedro. Comment
  RSA184981  Trifolium bifidum var. decipiens L. S. Rose 1966-5-2 66035 San Mateo Emerald Lake, west of Redwood City. 91 Comment
  POM223327  Trifolium bifidum var. decipiens L. S. Rose 35134 San Mateo Redwood City Comment
  JROH2259  Trifolium depauperatum var. amplectens John H. Thomas 1974-4-19 17160 San Mateo Jasper Ridge Biological Preserve, Stanford University; near area H Comment
  UC165566  Trifolium depauperatum var. amplectens J. Burtt Davy 1895-1 1020 San Mateo Pilarcitos Comment
  JROH2274  Trifolium depauperatum var. truncatum John Hunter Thomas 1982-4-18 20871 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2230  Trifolium dichotomum John H. Thomas 1964-4-19 10319 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2281  Trifolium fucatum Marie Tifft 1952-5-10 42 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  UCD109026  Trifolium fucatum June McCaskill 1954-5-8 290 San Mateo Moss Beach. Comment
  RSA95543  Trifolium fucatum var. fucatum L. S. Rose 1953-4-5 53014 San Mateo Redwood City, along Bayshore Highway. 3 Comment
  UCSC005461  Trifolium fucatum var. fucatum Randall Morgan 1995-6-6 2727 San Mateo Bean Hollow State Beach Comment
  JROH2316  Trifolium gracilentum John H. Thomas 1971-4-24 15776 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC165628  Trifolium gracilentum J. Burtt Davy 1895-1 1026 San Mateo Pilarcitos Comment
  JROH2322  Trifolium hirtum John Hunter Thomas 1984-4-24 23300 San Mateo Jasper Ridge Biological Preserve, Stanford University; Sand Hill Road fence Comment
  JROH2330  Trifolium hirtum John Hunter Thomas 1988-6-2 24498 San Mateo Jasper Ridge Biological Preserve, Stanford University; beach Comment
  HSC82087  Trifolium hirtum Thomas W. Nelson, Jane P. Nelson 1980-5-3 5132 San Mateo Intersection of Hwy. 92 and Hwy. 280, W of San Mateo. Comment
  RSA128600  Trifolium macraei Peter H. Raven 1950-4-30 1991 San Mateo Montara Mts. 122 Comment
  UC311115  Trifolium microcephalum A. D. E. Elmer April, 1903 4856 San Mateo Portola Comment
  JROH2351  Trifolium subterraneum John Hunter Thomas 1983-4-3 21312 San Mateo Jasper Ridge Biological Preserve, Stanford University; roadside near Searsville Lab Comment
  JROH2366  Trifolium subterraneum John Hunter Thomas 1989-4-20 24645 San Mateo Jasper Ridge Biological Preserve, Stanford University; new bridge below San Francisquito Creek below dam Comment
  UCSC010592  Trifolium suffocatum Neal Kramer 2016-4-17 2169 b San Mateo Bean Hollow State Beach trail north of parking area 12 Comment
  UCSC010593  Trifolium suffocatum Neal Kramer 2016-4-9 2169 a San Mateo Pescadero State Beach Parking Area 13 Comment
  JROH2374  Trifolium variegatum John H. Thomas 1956-4-7 5605 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  JROH2381  Trifolium variegatum John H. Thomas 1971-4-10 15762 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2389  Trifolium variegatum John Hunter Thomas 1991-5-2 25007 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG33492  Trifolium variegatum A. D. E. Elmer -May-1903 San Mateo Portola Comment
  UC165589  Trifolium variegatum var. melananthum J. Burtt Davy 1895-1 1027 San Mateo Pilarcitos Comment
  RSA349594  Trifolium variegatum var. melananthum L. S. Rose 1937-5-2 37251 San Mateo Burlingame 91 Comment
  JROH2403  Trifolium willdenovii John Hunter Thomas 1978-4-20 19079 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM20398  Trifolium willdenovii A. D. E. Elmer 1903-05 4716 San Mateo Belmont. Comment
  RSA6274  Trifolium willdenovii D. D. Keck 1932-6-1 1791 San Mateo Above Woodside on La Honda Rd. E slope of Santa Cruz Mtns. 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
  POM126702  Trifolium willdenovii R. L. Pendleton 1907-4-20 609 San Mateo Lake Merced. 30 Comment
  POM278617  Trifolium willdenovii Lyman D. Benson 1930-5-1 2057 San Mateo Stanford Univ.; San Lorenzo mt. range. 122 Comment
  UCD109929  Trifolium wormskioldii June McCaskill 1954-5-8 291 San Mateo On bank above beach; Moss Beach. Comment
  UCSC007777  Trifolium wormskioldii Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  UCSC007785  Trifolium wormskioldii Becky Hendricks 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC451908  Triglochin maritima Le Roy Abrams 1901-3-16 1145 San Mateo Cooley's Landing Comment
  JROH4734  Trillium chloropetalum John Hunter Thomas 1985-4-25 23570 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC844442  Trillium chloropetalum Lewis S. Rose 1937-3-14 37001 San Mateo Emerald Lake 198 Comment
  RSA14213  Trillium chloropetalum var. chloropetalum Carl B. Wolf 1927-2-17 200 San Mateo Los Trancos Creek, 2 miles back of Stanford University. Comment
  CAS-BOT-BC521070  Trillium chloropetalum var. giganteum C. F. Leithold 1894-2-24 s.n. San Mateo Santa Cruz Peninsula: Woodside Hills Comment
  CAS-BOT-BC521207  Trillium chloropetalum var. giganteum George Oberlander 1950-3-11 456 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC133433  Trillium ovatum A. D. E. Elmer 1903-4-1 4752 San Mateo Portola Comment
  CAS-BOT-BC133444  Trillium ovatum C. F. Leithold 1896-3-28 s.n. San Mateo Near Kings Mt. Comment
  JEPS55673  Trillium ovatum W. Roderick 1961-1-15 San Mateo s.e. Half Moon Bay Comment
  UCR55868  Trillium ovatum Ray Langham 1966-4-3 121 San Mateo [NW] of La Honda, King's Grove [apparently vicin. of Tunitas Creek Rd., Mitchell Creek drainage] 229 Comment
  PASA493  Trillium ovatum San Mateo Kings Mt. Comment
  CAS-BOT-BC238561  Triphysaria floribunda L. S. Rose 1927-5-1 s.n. San Mateo San Mateo Comment
  CAS-BOT-BC238562  Triphysaria floribunda L. R. A. 1902-4-13 2321 San Mateo Lake San Andreas Comment
  CAS-BOT-BC238577  Triphysaria floribunda M. K. C. 1886-5-1 68 San Mateo Colma Comment
  CAS-BOT-BC238570  Triphysaria floribunda W. R. Dudley 1900-3-17 s.n. San Mateo The Santa Cruz Peninsula. Seal Cove Comment
  OBI9367  Triphysaria versicolor subsp. faucibarbata Rimo Bacigalupi, G. T. Robbins 1954-6-18 4562 San Mateo Immed behind Point ano Nuevo Comment
  CAS-BOT-BC521592  Triteleia hyacinthina George Oberlander 1950-5-6 932 San Mateo Baker Meadow, northwest San Andreas Lake Comment
  JROH4742  Triteleia ixioides subsp. ixioides John Rawlings 2011-6-22 1070 San Mateo Jasper Ridge Biological Preserve, Stanford University. North side of ridge down slope from Escobar Gate. 130 Comment
  POM277006  Triteleia ixioides subsp. ixioides Lyman Benson 1930-5-3 2093 San Mateo Above Woodside, La Honda Grade; Mt. range: Santa Cruz. 244 Comment
  UC729638  Triteleia ixioides subsp. ixioides Carl B. Wolf 1929-5-24 3724 San Mateo 0.25 mi n base of La Honda grade (on rd to Woodside) 121 Comment
  UC765952  Triteleia ixioides subsp. ixioides R. F. Hoover 1941-5-20 5113 San Mateo near Martin Creek (on grade above Portola on La Honda road) Comment
  CAS-BOT-BC523098  Triteleia ixioides subsp. ixioides David D. Keck 1940-5-19 5047 San Mateo Santa Cruz Mountains, east flank, above Woodside and Searsville Lake on La Honda Road 300 Comment
  HSC23983  Triteleia ixioides subsp. ixioides Mary Katherine Wicksten 1971-6-17 4 San Mateo Huddart Park, grassy hill above Oak Area Comment
  SJSU9940  Triteleia ixioides subsp. ixioides L. S. Chan 1955-6-4 117 San Mateo Kings Mt Rd, 1.5 mi W of Woodside, E slope Santa Cruz Mts 243 Comment
  JROH4753  Triteleia laxa John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC526363  Triteleia laxa John H. Thomas 1971-5-2 15847 San Mateo Near intersection of Canada and Edgewater Roads, about 4 miles SW of center of Redwood City 304 Comment
  CAS-BOT-BC526368  Triteleia laxa Ned Cahill 1974-5-30 311 San Mateo Near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City 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
  UCSB17660  Triteleia laxa Schulte, John 1963-4-14 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC74064  Turritis glabra Alice Eastwood 1914-3-12 s.n. San Mateo San Bruno Hills. Comment
  CAS-BOT-BC212677  Ulex europaeus Phillip C. Wheeler 1965-5-17 s.n. San Mateo In Crocker Hills near Cow Palace 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
  SJSU8201  Ulmus parvifolia M. E. Schauss 1978-10-10 San Mateo Sunset Publishing Co, Willow Rd, Menlo Park Comment
  JEPS40102  Umbellularia californica W. L. Jepson 1922-3-19 9541 San Mateo Millbrae 182 Comment
  POM177516  Umbellularia californica Harry A. Dutton 1900-2-18 s.n. San Mateo Woodside. Comment
  RSA176662  Umbellularia californica P. H. Raven 1964-2-16 18743 San Mateo Just south of Lake San Andreas. Comment
  UC517991  Uropappus lindleyi Lewis S. Rose 1933-4-30 33127 San Mateo Redwood City Comment
  UCR122986  Urtica dioica subsp. gracilis George K. Helmkamp, E. A. Helmkamp 2001-6-2 6780 San Mateo San Francisco Bay Region, Purisima Creek Road, east of Half Moon Bay at Purisima Creek, 3.2 miles east of CA Hwy 1 244 Comment
  CAS-BOT-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
  UC5968  Urtica dioica subsp. holosericea J. Burtt Davy 1895-3-20 1055 San Mateo Lake Pilarcitos Comment
  POM204437  Urtica dioica subsp. holosericea E. C. Sutliffe 1933-7-12 s.n. San Mateo Between the Skyline Blvd and La Honda on the Alpine Creek Road. Comment
  CAS-BOT-BC199177  Vaccinium cespitosum John H. Thomas 1961-5-7 9317 A San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC199349  Vaccinium ovatum W. R. Dudley 1900-3-16 s.n. San Mateo By stage road from King's Mt. to Spanish town Comment
  CAS-BOT-BC199373  Vaccinium ovatum Javier Penalosa 1963-3-9 2693 San Mateo Ravine 1/2 mi. east of 1314ft. summit 304 Comment
  SBBG9304  Vaccinium ovatum W. D. McLellan 1954-5-17 59 San Mateo Memorial Park near Pescadero Comment
  SJSU11091  Vaccinium ovatum S. H. Casey 1969-5-18 260 San Mateo near summit San Bruno Mt Comment
  CAS-BOT-BC199465  Vaccinium parvifolium A. D. E. Elmer 1903-5-1 4924 San Mateo Butano Creek Comment
  UC141744  Vaccinium parvifolium Dr. E. B. Copeland 1903-5-9 3249 San Mateo Big Basin of Pescadero Creek Comment
  SEINET3293271 Image available Vancouveria hexandra Lewis S. Rose 1932-5-24 32269 San Mateo Kings mountain, forest Comment
  POM149188  Vancouveria planipetala A. D. E. Elmer 1903-05 4922 San Mateo Iverson s Place; on the Pescadero Creek. Comment
  UC511343  Vancouveria planipetala Lyman Benson 1931-5-10 2795 San Mateo Woodside; Santa Cruz Mts., Woodside 243 Comment
Read comments
Sep 12 2011
  POM149207  Vancouveria planipetala E. B. Copeland 1903-5-9 3051 San Mateo Big Basin. Comment
  JROH4147  Verbascum thapsus John Hunter Thomas 1981-9-24 20746 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1537693  Verbena lasiostachys Gordon H. True Jr. 1936-6-14 500 San Mateo canyon s of Salada Beach 152 Comment
  JROH4260  Verbena lasiostachys var. lasiostachys John H. Thomas 1974-6-30 17467 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the low flow crossing Comment
  JROH4277  Verbena lasiostachys var. scabrida John H. Thomas 1974-10-26 17626 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM64686  Verbena robusta A. D. E. Elmer 1903-07 4950 San Mateo Crystal Springs Lake. Comment
  RSA14507  Veronica americana I. L. Wiggins 1935-8-24 8162 San Mateo Marshy creek entering bay at Moss Beach. Comment
  POM283828  Veronica persica Lyman D. Benson 1935-5-5 6518 San Mateo Lake Searsville. Stanford University. Santa Cruz Mtn range. S.F. Bay watershed. 152 Comment
  JROH2425  Vicia americana subsp. americana Toni Corelli 2010-4-29 365 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 5 uphill 86 Comment
  UC16934  Vicia americana var. americana J. Burtt Davy Jun 21 1893-Jun 23 1893 1160 San Mateo Pilarcitos Lake and Pilarcitos Canyon; Pilarcitos Lake, Pilarcitos Canyon Comment
  RSA152232  Vicia americana var. americana I. L. Wiggins 1925-04 1655 San Mateo On Kings Mtn Road three fourths of a mile above Woodside. Comment
  RSA788949  Vicia angustifolia Peter Rubtzoff 1977-6-21 9062 San Mateo San Bruno Mountains. Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC157965  Vicia sativa Peter Rubtzoff 1976-6-30 8709 San Mateo San Bruno Mountains. Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction, upper part of East Fork Colma Creek Canyon Comment
  RSA187266  Vicia sativa John H. Thomas 1960-6-25 8793 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street. 8 Comment
  JROH2438  Vicia sativa subsp. nigra John Hunter Thomas 1982-4-28 20867 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2433  Vicia sativa subsp. nigra John H. Thomas 1965-4-10 10559 San Mateo Jasper Ridge Biological Preserve, Stanford University; near west end of Searsville Dam Comment
  SD148148  Vicia tetrasperma G. K. Helmkamp, E. A. Helmkamp 2001-6-2 6769 San Mateo Central CA coast, Purissima Roas east of Half Moon Bay, 1.9 miles east of CA-1, disturbed roadside soil 167 Comment
  JROH2454  Vicia villosa subsp. varia John Rawlings 2012-5-15 1114 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along road B vicinity of Dennis Martin Marker. 79 Comment
  CDA5531  Vinca major T. C. Fuller 1960-4-2 4065 San Mateo Skyline Boulevard, Woodside. 0 Comment
  JEPS50209  Viola adunca W. I. Follett 1934-2-18 2 San Mateo 9/10 mi s of Pigeon Point (along Said Highway) Comment
  UC566140  Viola adunca A. E. Wieslander 1935-2-3 507 San Mateo 1/2 mi se of Pigeon Point 30 Comment
  CAS-BOT-BC536573  Viola glabella Charles Piper Smith 1908-3-28 1369 San Mateo Woodside--Kings Mt. road 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
  RSA77751  Viola ocellata D. D. Keck 1932-6-1 1495 San Mateo Above Woodside on La Honda road, east slope of Santa Cruz Mtns. Comment
  JROH4285  Viola ocellata H. J. Dengler 1972-5-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Eight feet from S.F. Creek by great boulder at redwood grove by Searsville Rocks. Comment
  SEINET204884 Image available Viola ocellata W. D. McLellan 1954-5-17 58 San Mateo Memorial Park near Pescadero Comment
  UCD110695  Viola ocellata W. D. McLellan 1954-5-17 58 San Mateo Memorial Park near Pescadero. Comment
  RSA412720  Viola pedunculata Glenn A. Gorelick 1967-4-15 s.n. San Mateo San Bruno Mts. overlooking Daly City near San Francisco. Comment
  UC1073374  Viola pedunculata George B. Rossbach 1955-3-26 354 San Mateo next ridge n of San Bruno Mountain (north San Mateo County) 243 Comment
  UC1085311  Viola pedunculata F. A. Pitelka April 1946 San Mateo lower end of San Andreas Lake Comment
  POM286641  Viola pedunculata Lyman D. Benson 1941-7-16 1022 San Mateo North of South San Francisco Comment
  SEINET11981030  Viola pedunculata L. S. Hill 1930-1 74 San Mateo Comment
  UC74940  Viola sempervirens C. F. Baker 1902-1-15 232 San Mateo w side of King's Mountain; The Pacific Slope, King's Mountain Comment
  CAS-BOT-BC210156  Vulpia bromoides Peter Rubtzoff 1975-5-21 7967 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  RSA790283  Vulpia bromoides Peter Rubtzoff 1976-6-13 8635 San Mateo San Bruno Mtn: 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  RSA27482  Vulpia microstachys I. L. Wiggins 1941-4-17 9720 San Mateo Roadside near junction of road to California Sanitarium and Woodside-Half Moon Bay road. Comment
  RSA135765  Vulpia microstachys var. pauciflora John H. Thomas 1957-4-16 6654 San Mateo Jasper Ridge, about 3.5 miles southwest of Stanford University. 152 Comment
  CAS-BOT-BC185776  Vulpia myuros subsp. megalura Phillip C. Wheeler 1965-4-27 s.n. San Mateo Sierra Point Comment
  CAS-BOT-BC389768  Vulpia myuros subsp. megalura R. D. Hennessey 1964-4-26 67 San Mateo Area where Pilarcitos Creek empties into ocean several hundred yards from shore Comment
  CAS-BOT-BC128735  Whipplea modesta Ira L. Wiggins 1925-4-1 1666 San Mateo On Kings Moutnain road one mile above Woodside. Comment