Search Results — 2000 specimen records retrieved (1334 records with coordinates)
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Results for search: County=SAN MATEO; Source=All;   

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

 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/).
 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
  SEINET5726308 Image available Abronia latifolia Louise Lackman 1973-1 33 San Mateo sand dune, ca. 100 feet from shoreline.; Pescadero Beach Comment
  NY679470  Abronia umbellata L. S. Rose 1935-10-12 35654 San Mateo Salada. 3 Comment
  JROH2957  Abutilon theophrasti Carol Zabel 2006-8-21 62 San Mateo Jasper Ridge Biological Preserve, Stanford University; resident ranger's yard Comment
  CAS-BOT-BC451117  Acaena pinnatifida var. californica Le Roy Abrams 1901-5-1 1622 San Mateo Colma Comment
  CAS-BOT-BC451119  Acaena pinnatifida var. californica Robert F. Hoover 1939-4-21 4053 San Mateo Two miles south of Colma Comment
  CAS-BOT-BC451134  Acaena pinnatifida var. californica Dr. E. L. Greene 1902-5-1 688 San Mateo Crystal Springs Lake; Pacific Coast Comment
  CAS-BOT-BC451122  Acaena pinnatifida var. californica W. R. Dudley 1901-5-11 s.n. San Mateo Near Millbrae; Santa Cruz Peninsula Comment
  CAS-BOT-BC219598  Acanthomintha duttonii Carl B. Wolf 1929-5-24 3723 San Mateo Above Upper Emerald Lake back of Redwood City Comment
  CAS-BOT-BC219602  Acanthomintha duttonii John H. Thomas 1972-4-16 16065 A San Mateo Near Cyrstal [Crystal] Springs Reservoir near Highway 92 Comment
  CDA40752  Acanthomintha duttonii Polo Moreno 1989-8-2 s.n. San Mateo 1/4 mile southwest of intersection Highway 280 and Edgewood Road, west of Redwood City. 0 Comment
  CAS-BOT-BC333211  Acer macrophyllum Ira L. Wiggins 1925-4-1 1687 San Mateo First bridge across small creek on Kings Mountain Road above Woodside Comment
  CAS-BOT-BC333288  Acer macrophyllum W. R. Dudley 1906-6-14 s.n. San Mateo Santa Cruz Mountain Peninsula. San Francisquito Creek, near Cedro Cottage, Stanford Univ. Comment
  CAS-BOT-BC333290  Acer macrophyllum A. D. E. Elmer 1903-5-1 4509 San Mateo Portola Comment
  CAS-BOT-BC333297  Acer macrophyllum Robert Setzer 1969-3-30 2140 San Mateo Crystal Springs Road 60 Comment
  JROH154  Acer macrophyllum John H. Thomas 1969-4-12 14882 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grassy area below dam, near stream. 88 Comment
  JROH163  Acer macrophyllum John Hunter Thomas 1989-5-11 24733 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road in grassy area above San Francisquito Creek and below dam 87 Comment
  POM136914  Acer negundo subsp. californicum C. F. Baker 1902-5-15 472 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC337446  Acer negundo var. negundo J. H. Thomas 1954-4-21 3942 San Mateo San Francisquito Creek 0 Comment
  SEINET7898512  Acer saccharum D. Nyquist 1960-4-18 44 San Mateo San Francisco. Comment
  CAS-BOT-BC21553  Achillea millefolium Walter Knight; Irja Knight 1965-4-25 1074 San Mateo San Bruno Mountain. Owl's Canyon. Comment
  CAS-BOT-BC21591  Achillea millefolium W. E. Lawrence; D. D. Keck 1933-5-11 L 5019 San Mateo Half Moon Bay Comment
  JEPS85554  Achillea millefolium Craig Dremann 1986-9-13 335 San Mateo (along Stage road between San Gregorio and Pompanio Creek) San Gregorio; Pompanio Creek Comment
  UCD18525  Achillea millefolium June McCaskill 1954-5-8 300 San Mateo Moss Beach. Comment
  CAS-BOT-BC21582  Achillea millefolium Cherie Wetzel 1969-6-20 863 San Mateo Near Canada College, Redwood City, just off Farm Hill Blvd. Comment
  UCSC007713  Achillea millefolium Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH459  Achyrachaena mollis John H. Thomas 1963-5-12 10079 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH472  Achyrachaena mollis John Hunter Thomas 1983-4-21 21641 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM284475  Achyrachaena mollis Arthur L. Cohen 1935-4-21 625 San Mateo Jasper Ridge; Mt.Range: Coast; Watershed: Searsville. 183 Comment
  SEINET11854798  Achyrachaena mollis M. T. Doutt 1931-1 420 b. San Mateo Skyline Blvd, W of Hillbrae Comment
  SBBG34038  Acmispon americanus L. S. Rose 1964-9-5 64071 San Mateo Emerald Lake, W of Redwood City 243 Comment
  JROH2054  Acmispon americanus var. americanus John H. Thomas 1967-6-1 12954 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389697  Acmispon glaber Mary K. Wicksten 1975-6-19 129 San Mateo Mt. Ellen Trail Comment
  SJSU16007  Acmispon parviflorus Toni Corelli, John Rawlings 2016-5-27 1849 San Mateo Bean Hollow bluff trail, west of Hwy 1 south of Pescadero 8 Comment
  JROH2078  Acmispon strigosus John H. Thomas 1963-5-12 10083 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS127788  Acmispon wrangelianus Adam C. Schneider with C. Matt Guilliams 2013-4-7 59 San Mateo Along dirt road running parallel to overhead power transmission lines. GPS coordinates approximate. Comment
  JROH2089  Acmispon wrangelianus Duncan M. Porter 1960-5-5 676 A San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of N-facing slope above Webb Ranch. Quadrat H-5 Comment
  JROH2100  Acmispon wrangelianus John H. Thomas 1975-5-2 17859 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC391673  Actaea rubra A. D. E. Elmer 1903-5-1 4703 San Mateo Butano Creek Comment
  CAS-BOT-BC391676  Actaea rubra W. R. Dudley 1895-9-15 s.n. San Mateo Santa Cruz Peninsula. El Corte Madera, Lumber Camp Comment
  CAS-BOT-BC29292  Adenocaulon bicolor H. L. Mason 1921-7-1 s.n. San Mateo Butano Creek Comment
  CAS-BOT-BC139957  Adenostoma fasciculatum L. S. Rose 1941-6-12 41270 San Mateo Emerald Lake, hills west of Redwood City 120 Comment
  CAS-BOT-BC139959  Adenostoma fasciculatum George Oberlander 1949-6-25 234 San Mateo Sawyer Ridge Comment
  HSC23963  Adenostoma fasciculatum Mary Katherine Wicksten 1971-6-17 38 San Mateo Huddart Park, Zwierlein Trail Comment
  LA27800  Adenostoma fasciculatum L. S. Rose; 1941-6-12 41270 San Mateo Rocky ridges, Emerald lake, hills W. of Redwood City 120.0 Comment
  SEINET8722547 Image available Adenostoma fasciculatum Lewis S. Rose 1941-1 41270 San Mateo Hills w. of Red Wood City, Emerald Lake. Alt. ca. 400 ft. 122 Comment
  JROH3589  Adenostoma fasciculatum var. fasciculatum John H. Thomas 1976-5-26 18150 San Mateo Jasper Ridge Biological Preserve, Stanford University 146 Comment
  RSA453174  Adenostoma fasciculatum var. fasciculatum L. S. Rose 1935-6-9 35212 San Mateo Emerald lake, W. of Redwood City. Comment
  UC42051  Adiantum aleuticum F. P. McLean 1873-1 San Mateo Pescadero Comment
  JROH89  Adiantum jordanii John H. Thomas 1968-4-13 14290 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  RSA15284  Adiantum jordanii C. B. Wolf 1927-4-3 252 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  UCSB18581  Adiantum jordanii Muirhead, M. 1964-4-17 San Mateo Crocker Estate, Hillsborough 91 Comment
  CAS-BOT-BC22978  Agoseris grandiflora var. grandiflora P. C. Wheeler 1966-4-24 s.n. San Mateo Buckeye Canyon Comment
  JROH495  Agoseris heterophylla John Hunter Thomas 1988-6-2 24493 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  POM53411  Agoseris heterophylla C. F. Baker s.n. San Mateo Near Stanford University Comment
  CAS-BOT-BC15235  Agoseris hirsuta David D. Keck 1932-5-6 1461 San Mateo near Belmont Comment
  POM52180  Agoseris hirsuta C. F. Baker 1902-5-4 884 San Mateo Crystal Springs Lake Comment
  POM52819  Agoseris hirsuta A. D. E. Elmer 1903-04 s.n. San Mateo Cemeteries Comment
  UC1100106  Agrostis alba Malcolm A. Nobs and S. Galen Smith 1949-8-25 1550 San Mateo marshes Sharp Park Comment
  JROH4772  Agrostis avenacea John Hunter Thomas 1980-9-27 20197 San Mateo Jasper Ridge Biological Preserve, Stanford University; old bathing beach area in weeds near water's edge 120 Comment
  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
  POM88024  Agrostis exarata Le Roy Abrams 1901-5-14 1640 San Mateo Stanford University, Jasper Ridge Comment
Read comments
Feb 18 2012
  UC36879  Agrostis exarata Michener and Bioletti 1893-6-15 134 San Mateo Baden Comment
  UCD37960  Agrostis exarata Beecher Crampton 1962-6-11 6498 San Mateo San Mateo County, northern city limits of Pacifica, along State Highway 1, just southwest of its junction with Skyline Boulevard. Comment
  UCD52248  Agrostis exarata var. microphylla Collector unknown 1925-6-15 2115 San Mateo Pescadero - Santa Cruz Rd. Comment
  SEINET3127762  Agrostis microphylla L. Abrams 1902-5-11 2458 San Mateo Crystal Springs Comment
  JROH4802  Agrostis pallens John Rawlings 2011-6-14 1073 San Mateo Jasper Ridge Biological Preserve, Stanford University. Uphill side of Trail 5. 119 Comment
  RSA457455  Agrostis pallens Lyman Benson 1937-6-24 8390 a San Mateo Coal Mine Ridge. South of Stanford University. 396 Comment
Read comments
Aug 8 2011
  RSA320915  Aira caryophyllea Robert A. Norris 1984-3-21 4652 San Mateo Blue Blossom Hill, San Bruno Mts. 357 Comment
  CAS-BOT-BC445396  Alisma plantago-aquatica Margaret A. Barry 1937-6-27 174 San Mateo Mud Lakes on Coal Mine Ridge Comment
  JROH4298  Alisma triviale L. R. Abrams 1917-10-9 6865 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  JROH4569  Allium John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5959  Allium amplectens John Rawlings 2017-6-6 2100 San Mateo Jasper Ridge Biological Preserve, Stanford University; rocky serpentine near ridge crest at NW terminus of Serpentine prairie (Area C). 177 Comment
  UC398649  Allium dichlamydeum L. R. Abrams 1926-5-26 San Mateo a short distance s original station <type locality?> (w slope of San Bruno Hills); San Bruno Hills Comment
  UC796644  Allium falcifolium Ira L. Wiggins 1949-4-23 12049 San Mateo w Redwood City (hills near Emerald Lakes); Emerald Lakes Comment
  SEINET3558047 Image available Allium lacunosum Lewis S. Rose 1932-5-3 32223 San Mateo Redwood City. 183 Comment
  CAS-BOT-BC132028  Allium peninsulare var. franciscanum George Oberlander 1950-5-21 929 San Mateo Grassland, north of San Andreas Lake Comment
  CAS-BOT-BC132031  Allium peninsulare var. franciscanum L. R. Abrams 1920-6-2 7502 San Mateo Back of Redwood City Comment
  CDA33772  Allium triquetrum D. G. Kelch 2011-3-13 11 .046 San Mateo Pacifica. Along sea bluffs Comment
  CAS-BOT-BC474307  Allium unifolium R. S. Ferris 1921-5-29 2183 San Mateo New Years Pt. Comment
  SEINET12044628  Allium unifolium R. S. Ferris 1921-1 2183 San Mateo New Year's Pt Comment
  SEINET5626583 Image available Allocarya chorisiana Unknown 1907-1 8439 San Mateo Near Lake Merced Comment
  JROH1327  Alnus rhombifolia John H. Thomas 1971-5-30 15981 San Mateo Jasper Ridge Biological Preserve, Stanford University; along creek below dam Comment
  SJSU10489  Alopecurus pratensis S. H. Casey & C. A. Brock 1975-6-20 546 San Mateo by Old Woodside Store, Woodside 134 Comment
  RSA177003  Amaranthus albus John H. Thomas 1964-11-15 10522 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  CAS-BOT-BC523926  Amaranthus deflexus A. C. Sanders 2015-12-27 41888 San Mateo San Francisco Peninsula: San Bruno, along Hwy 82 between 380 Fwy and San Bruno Ave. 15 Comment
  UCR266159  Amaranthus deflexus A. C. Sanders 2015-12-27 41888 San Mateo San Francisco Peninsula, San Bruno, along Hwy 82 between 380 Fwy and San Bruno Ave. 15 Comment
  JROH178  Amaranthus retroflexus John H. Thomas 1974-10-29 17651 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC007715  Ambrosia chamissonis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  RSA93926  Ambrosia chamissonis var. chamissonis F. W. Peirson 1925-9-13 6427 San Mateo Rockaway beach. Comment
  UCSC007716  Ammophila arenaria Becky Hendricks, Shayne Coppedge 2012-5-18 s.n. San Mateo Ano Nuevo State Park Comment
  RSA0089684  Amsinckia intermedia John H. Thomas 1964-4-19 10324 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Near Searsville Lake. Comment
  SBBG51253  Amsinckia intermedia J. Doty 1969-3-24 581 San Mateo N side of Embarcadero Rd, just W of W boundary of Byxbee Marshlands Wildlife Preserve, Menlo Park 1 Comment
  CAS-BOT-BC222456  Amsinckia lunaris Gene B. Newcomb 1953-5-20 116 San Mateo Road west of San Mateo City to Skyline Blvd., 1.7 miles below junction to Skyline opposite gravel pit, (Hillsborough) Comment
  RSA0089968  Amsinckia retrorsa Arthur L. Cohen 1935-4-21 622 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  CAS-BOT-BC45190  Anaphalis margaritacea D. D. Keck 1931-10-5 1284 San Mateo 1 mile north of Salada Beach, 300 feet from ocean Comment
  CAS-BOT-BC391924  Anemone grayi H. L. Mason 1927-4-24 3698 San Mateo La Honda Comment
  CAS-BOT-BC391915  Anemone grayi W. R. Dudley 1894-3-26 s.n. San Mateo Santa Cruz Peninsula. Beyond King's Mt. House Comment
  SEINET12087660  Anemone grayi W. R. Dudley 1894-1 s.n. San Mateo beyond Kings Mt. House Comment
  RSA246844  Angelica hendersonii R. F. Thorne, P. Everett 1965-8-1 35077 San Mateo 21.5 miles S of Golden Gate Bridge. 69 Comment
  POM132762  Angelica tomentosa var. tomentosa C. F. Baker 1903-6-30 3354 San Mateo Crystal Springs Comment
  CAS-BOT-BC273178  Anisocarpus madioides Josephine D. Randall 1907-4-27 90 San Mateo Santa Cruz Peninsula. Kings Mt Road Comment
  CAS-BOT-BC273186  Anisocarpus madioides C. F. B. 1902-5-10 300 San Mateo Kings Mountain Comment
  UC1080539  Anisocarpus madioides S. S. Tillett and I. Sternback 1956-6-24 529 San Mateo n of (behind) Portola Camp Store (just outside Portola State Park, Middleton property) 396 Comment
  UC89529  Anisocarpus madioides C. F. Baker 1902-5-10 800 San Mateo Kings Mountain Comment
  JROH509  Anthemis cotula John Hunter Thomas 1983-6-29 22698 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD5799  Anthemis cotula unknown 1925-9-3 San Mateo Burlingame Comment
  CAS-BOT-BC280645  Anthoxanthum occidentale L. R. Abrams 1904-3-7 s.n. San Mateo Santa Cruz Mountain Peninsula. Bear Gulch Comment
  JROH5204  Anthoxanthum occidentale Volney Rattan 1867-3-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Redwoods, Searsville Comment
  JROH199  Anthriscus caucalis John H. Thomas 1974-5-3 17242 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
  JROH3606  Aphanes occidentalis John Hunter Thomas 1981-4-5 20269 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  CAS-BOT-BC454494  Aphanes occidentalis John H. Thomas 1971-5-2 15831 San Mateo Serpentine fields near intersection of Canada and Edgewater roads. About 4 miles SW of center of Redwood City. 304 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
  CAS-BOT-BC392065  Aquilegia eximia A. D. E. Elmer 1903-7-1 4952 San Mateo Crystal Springs Lake Comment
  JEPS60392  Aquilegia eximia Mrs. Inez Ray Smith 1912-7-27 San Mateo Crystal Springs Comment
  CAS-BOT-BC405856  Aquilegia formosa George Oberlander 1949-4-30 66 San Mateo Pilarcitos Canyon Comment
  RSA523415  Aquilegia formosa var. truncata G. H. True 1936-4-5 388 San Mateo Canyon between San Gregorio and Pescadero 152 Comment
  JEPS90202  Arabis blepharophylla Dean W. Taylor 1989-3-30 10187 San Mateo crest of ne ridge of San Bruno Mountain ((ridge separating Guadalupe Valley from Vistacion Valley), Right-of-way of eastern-most set of PG&E high-voltage powerlines crossing mtn); Santa Cruz Mountains, San Bruno Mountain Comment
  SJSU8506  Arabis blepharophylla P. F. Canziani 1979-3-2 San Mateo canyon NW of intersection of Hillside Blvd & Chestnut Ave, San Bruno Mt 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
  JROH1916  Arbutus menziesii John H. Thomas 1959-4-5 7665 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5562  Arctostaphylos John Rawlings, Toni Corelli 2013-1-29 1110 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail to Hermit's Mine site. 195 Comment
  UC144406  Arctostaphylos C. F. Baker 1902-3-18 327 San Mateo King's Mountain Comment
  CAS-BOT-BC24170  Arctostaphylos andersonii W. R. Dudley 1905-6-12 s.n. San Mateo Trail below China Pt., Pescadero Creek. Comment
  POM367227  Arctostaphylos andersonii L. S. Rose 1947-3-11 47028 San Mateo Kings Mountain. 609 Comment
  RSA252169  Arctostaphylos andersonii G. D. Wallace 1974-12-28 1375 San Mateo Northern Santa Cruz Mtns., S of Upper Crystal Springs Res. along Skyline Blvd. 2.8 mi N of jct. of King Mtn. Rd. opposite Farwell's Rhododendron Nursery. Within fog belt. 640 Comment
  SEINET11987493  Arctostaphylos andersonii var. imbricata J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4215 San Mateo from Strybing Arboretum, Golden Gate Park, San Francisco, from San Bruno Mountain Comment
  CAS-BOT-BC23544  Arctostaphylos crustacea J. I. McMurphy 1906-3-9 7 San Mateo King's Mt., Santa Cruz Mts. 487 Comment
  CAS-BOT-BC23548  Arctostaphylos crustacea Robert Francis Hoover 1941-2-12 4763 San Mateo Northwest of Saratoga Summit Comment
  SEINET11989199  Arctostaphylos crustacea E. McClintock, Knight, W.; Knight, I. 1982-1 4646 San Mateo San Pedro County Park, near Pacifica Comment
  CAS-BOT-BC25169  Arctostaphylos crustacea subsp. crinita Roman Gankin 1966-5-17 739 San Mateo ca. 0.4 mile NE of Peak Mountain of Montara Mountain Range 487 Comment
  JROH1935  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1975-1-18 17675 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville end of ridge Comment
  JROH1938  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1968-2-11 14145 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1943  Arctostaphylos crustacea subsp. crustacea John Hunter Thomas 1987-4-30 24210 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG83928  Arctostaphylos crustacea subsp. crustacea R. Gankin 1959-2-22 322 San Mateo 2.8 mi from jct with Hwy 5 on King's Mtn Rd Comment
  SEINET11988205  Arctostaphylos glandulosa W. Knight, Raiche, R. 1982-1 4420 San Mateo San Bruno Mountain, Buckeye Canyon on Oak Ridge 102 Comment
  CAS-BOT-BC24733  Arctostaphylos glandulosa subsp. glandulosa Walter Knight; Roger Raiche 1982-1-23 4416 San Mateo San Bruno Mtn. Up Buckeye Canyon on Oak Ridge. 91 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-BC24491  Arctostaphylos imbricata Arthur L. Menzies 1963-3-10 s.n. San Mateo San Bruno Hills Comment
  RSA70707  Arctostaphylos imbricata L. S. Rose 1951-3-13 51001 San Mateo San Bruno Hills. 304 Comment
  CAS-BOT-BC27160  Arctostaphylos montaraensis W. Knight; Irja Knight 1967-1-19 2056 San Mateo Montara Mt. 335 Comment
  JEPS88613  Arctostaphylos montaraensis J. Roof 1966-3-27 San Mateo Pacific Ridge San Bruno Mt. 358 Comment
  UC21803  Arctostaphylos montaraensis C. T. Blake 1893-5-27 San Mateo Pilarcitos Reservoir Comment
  JEPS88612  Arctostaphylos montaraensis unknown May 1961 San Mateo Pacific Ridge Comment
Read comments
Jan 23 2011
  SEINET11987328  Arctostaphylos montaraensis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4203 San Mateo Strybing Arboretum, San Fran., Golden Gate Park, orig. few yds NE of Pacific Rock on San Bruno Mt Comment
  SEINET11989285  Arctostaphylos montaraensis W. Knight, Knight, I.; McClintock, E. 1982-1 4447 San Mateo San Pedro County Park, Pacifica Comment
  CAS-BOT-BC39821  Arctostaphylos pacifica Arthur Menzies 1963-3-9 s.n. San Mateo San Bruno Hills - N.E. ridge from road at end of parking lot Comment
  RSA633497  Arctostaphylos pacifica Jon E. Keeley 1996-6-24 27572 San Mateo On knob below end of paved road at top of San Bruno Mountain. 350 Comment
  RSA633502  Arctostaphylos pacifica Jon E. Keeley 1996-6-24 27570 San Mateo On knob below end of paved road at top of San Bruno Mountain. 350 Comment
  CAS-BOT-BC27287  Arctostaphylos regismontana Mrs. E. C. Sutliffe 1933-3-15 s.n. San Mateo Kings Mt. Comment
  CAS-BOT-BC44703  Arctostaphylos regismontana Walter Knight; Roger Raiche 1982-1-23 4414 San Mateo Montara Mt. 304 Comment
  CAS-BOT-BC44749  Arctostaphylos regismontana W. R. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs Reservoir Comment
  JEPS79444  Arctostaphylos regismontana Edward Lee with H. L. Mason 1935-6-15 1432 San Mateo near summit King's Mountain Comment
  OBI14513  Arctostaphylos regismontana Lewis S. Rose 1961-2-16 61003 San Mateo Kings Mountain 610 Comment
  POM131773  Arctostaphylos regismontana C. F. Baker 1902-1-15 271 San Mateo Kings Mountain. West side of King's Mountain. Comment
  RSA636744  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24631 San Mateo NW side of Montara Mtn. 150 Comment
  RSA636748  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24634 San Mateo NW side of Montara Mtn. 150 Comment
  RSA636749  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24635 San Mateo NW side of Montara Mtn. 150 Comment
  UC1120845  Arctostaphylos regismontana C. M. Belshaw 1935-1-25 1467 San Mateo KIngs Mt. Rd. 6 mi w Woodside; Santa Cruz Quadrangle Comment
  UC484125  Arctostaphylos regismontana Carl B. Wolf 1930-11-6 1811 San Mateo Skyline Blvd 2 mi n summit of Kings Mt. 640 Comment
  CAS-BOT-BC44668  Arctostaphylos sensitiva Roxana S. Ferris 1920-5-25 1959 San Mateo At end of Butano Ridge. Santa Cruz Mountain Peninsula 304 Comment
  CAS-BOT-BC44673  Arctostaphylos sensitiva W. R. Dudley 1897-12-29 s.n. San Mateo Butano Ridge, between Butano & Pescadero Crs. - Santa Cruz Peninsula Comment
  RSA636845  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24645 San Mateo NW side of Montara Mtn. 150 Comment
  RSA81913  Arctostaphylos tomentosa subsp. crustacea E. K. Balls, Percy C. Everett, B. K. Balls 1953-10-16 18680 San Mateo Hwy 5, 30.8 mi. s.e. of San Francisco - San Mateo Co. line. 762 Comment
  POM286194  Arctostaphylos tomentosa subsp. tomentosiformis Lyman Benson 1935-3-10 6255 San Mateo La Honda Grade. 518 Comment
  CAS-BOT-BC46832  Arctostaphylos uva-ursi Arthur Menzies 1963-3-10 s.n. San Mateo On ridge N.W. of first Television Tower. Comment
  SJSU6464  Arctostaphylos uva-ursi S. H. Casey 1969-5-18 264 San Mateo Kamchatka Point, San Bruno Mt Comment
  SEINET11988288  Arctostaphylos uva-ursi Unknown 1959-1 328 San Mateo near ridge of San Bruno Mountain, South San Francisco, 0.25 mi E of KRON TV transmitter Comment
  JEPS91222  Arctostaphylos uva-ursi var. suborbiculata Dean W. Taylor 1988-4-29 9585 San Mateo San Bruno Mountain, northern slope of mountain 0.3 miles N22d W of summit, 371 Comment
  UCR266158  Arctotheca prostrata A. C. Sanders 2015-12-22 41887 San Mateo San Francisco Bay Region, San Bruno Mountain, Summit Loop Trail near park entrance, south of Guadalupe Canyon Parkway and east of April Brook 183 Comment
  UCSB11750  Armeria maritima subsp. californica Olson, Jim 1962-4-13 San Mateo 1 mile south of Halfmoon Bay on U.S. Highway 101 15 Comment
  POM190257  Arnica discoidea D. D. Keck 1932-5-11 1775 San Mateo East side of Kings Mountain, on Kings Mountain Road 350 Comment
  POM288963  Artemisia californica Lyman Benson 1928-11-25 785 San Mateo Stanford Univ-- Lake Searsville. Santa Cruz Mts. 152 Comment
  RSA177002  Artemisia californica John H. Thomas 1964-11-29 10538 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of palo Alto. E end of Searsville Dam Comment
  RSA94535  Artemisia californica F. W. Peirson 1925-9-13 6429 San Mateo Rockaway beach. Comment
  UC1537053  Artemisia douglasiana Gordon H. True Jr. 1937-7-23 803 San Mateo along Salada Beach-Skyline Blvd. 60 Comment
  CAS-BOT-BC93935  Artemisia douglasiana Gordon H. True 1937-7-23 803 San Mateo Along Salada Beach - Skyline Blvd. Road Comment
  CHSC56966  Artemisia pycnocephala Steven Triano 1988-5-24 187 San Mateo W of Hwy 1 ca 0.2 mi N of Pescadero Road. 9 Comment
  POM165734  Asarum caudatum E. B. Copeland 1903-5-9 s.n. San Mateo Mountains beyond Pescadero Creek 305 Comment
  RSA18383  Asclepias fascicularis C. B. Wolf 1927-7-1 s.n. San Mateo Above Emerald Lake, back of Redwood City Comment
  RSA184853  Asclepias fascicularis L. S. Rose 1965-8-27 s.n. San Mateo Emerald Lake, West of Redwood City 122 Comment
  SEINET946245  Asteraceae J. A. Reese 1962-1 San Mateo In rear of home of J.J. Reese; 286 Whiskey Hill Road, Woodside 122 Comment
  CAS-BOT-BC478066  Asteraceae Peter H. Raven 1957-9-1 11302 San Mateo Along Skyline Blvd. at Woodside Road Comment
  CAS-BOT-BC186759  Astragalus gambelianus Margaret A. Barry 1937-5-8 60 San Mateo On Coal Mine Ridge Comment
  JROH1987  Astragalus gambelianus Duncan M. Porter 1960-5-5 675 San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of N-facing slope above Webb Ranch. Quadrat H-5 Comment
  JROH1991  Astragalus gambelianus John H. Thomas 1974-4-24 17184 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC186750  Astragalus gambelianus Marck Menke 1998-4-24 Menke 3 San Mateo On a slope immediately west of the ravine west of Juncus Ravine on the south slope of San Bruno Mt. Ridge, about the Terrabay development 121 Comment
  CAS-BOT-BC186757  Astragalus gambelianus Lois E. James 1947-4-11 1757 San Mateo Hills back of Redwood City Comment
  RSA10287  Astragalus nuttallii H. A. Barker 1927-5-14 658 San Mateo North of Half Moon Bay. Comment
  SBBG114454  Astragalus pycnostachyus var. pycnostachyus D. Wilken with E. Painter, M. Wetherwax 2000-7-29 15844 San Mateo dike at edge of freshwater marsh, 0.9 km ESE of mouth of Pescadero Crk estuary 10 Comment
  UC1128872  Astragalus pycnostachyus var. pycnostachyus G. E. Sindel 1935-7-25 298 San Mateo 2 mi nnw Pescadero; Santa Cruz Quad., nnw of Pescadero Comment
  HSC24025  Asyneuma prenanthoides Mary Katherine Wicksten 1971-7-7 155 San Mateo Huddart Park, along road to family campground. Comment
  UCD164088  Athyrium filix-femina var. cyclosorum Peter Rubtzoff 1977-11-24 9144 San Mateo San Bruno Mountains.'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC17587  Athysanus pusillus Peter H. Raven 1951-2-18 2734 San Mateo Summit Ridge San Bruno Mountains. Comment
  CAS-BOT-BC170571  Atriplex J. H. Thomas 1958-10-21 7486 San Mateo Near intersection of Bayshore highway and Main Street, Redwood City. Comment
  CDA2953  Atriplex hortensis T. C. Fuller 1961-11-1 7188 San Mateo East of Industrial Way at Garden Street, north limits of Redwood City. 0 Comment
  UC1191360  Atriplex hortensis Malcolm A. Nobs, S. Galen Smith 1949-8-27 1619 San Mateo salt marshes e Redwood City; e of Redwood City Comment
  UCD97426  Atriplex hortensis Malcolm A. Nobs; S. Galen Smith 1949-8-27 1619 San Mateo E of Redwood City. Comment
  UCSB53638  Atriplex hortensis Wetland Research Associates 1986-8-21 San Mateo 1/4 mi. from San Francisco Bay, between Steinberger Slough and Redwood Creek, Belmont Comment
  RSA478327  Atriplex leucophylla L. S. Rose 1933-7-20 33305 San Mateo Granada. Comment
  SEINET5779123 Image available Atriplex leucophylla L. S. Rose 1941-9-27 41460 San Mateo Princeton Comment
  SEINET5727745 Image available Atriplex semibaccata Delzie Demaree 1932-1 10529 San Mateo Belmont; Belmont Comment
  UC463561  Atriplex triangularis L. R. Abrams and I. L. Wiggins 1930-11-13 177 San Mateo junction of Skyline Blvd. and Coast Road near Colma; near Colma Comment
  UC463562  Atriplex triangularis L. R. Abrams and I. L. Wiggins 1930-11-13 175 San Mateo Skyline Blvd. 1 mi sw Colma; sw of Colma Comment
  RSA17941  Avena barbata C. B. Wolf, Le Roy Abrams 1927-4-6 s.n. San Mateo So. of San Gregoris. Comment
  CAS-BOT-BC145956  Avena fatua George Oberlander 1950-4-23 862 San Mateo San Francisco Watershed Reserve. San Andreas Valley. Comment
  HSC9008  Avena fatua C. B. Wolf 1927-6-4 San Mateo South of San Gregorio Comment
  SEINET10528168  Avena occidentalis Unknown Anonymous s.n. San Mateo Dry hill, Millbrae Meadows. Comment
  CAS-BOT-BC68327  Azolla filiculoides Malcom A. Nobs; S. Galen Smith 1949-8-26 1593 San Mateo Mouth of Pescadero Creek Comment
  UCD136025  Azolla microphylla Malcolm A. Nobs; S. Galen Smith 1949-8-26 1593 San Mateo At the mouth of Pescadero Creek. Comment
  JROH536  Baccharis glutinosa John H. Thomas 1974-8-3 17497 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC99515  Baccharis pilularis A. D. E. Elmer 1903-2-1 4576 San Mateo Portola Comment
  CAS-BOT-BC99522  Baccharis pilularis Ned Cahill 1974-4-30 240 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC99533  Baccharis pilularis David D. Keck 1931-10-5 1283 San Mateo 1 mile north of Salada Beach Comment
  POM213037  Baccharis pilularis C. B. Wolf 1934-11-9 6240 San Mateo 200 yards south of Pigeon Point Lighthouse 15 Comment
  POM54355  Baccharis pilularis A. D. E. Elmer 1903-02 4576 San Mateo Portola Comment
  UC311166  Baccharis pilularis A. D. E. Elmer 1903-2-1 4576 San Mateo Portola Comment
  POM199570  Baccharis pilularis Horace Davis 1907-09 116 San Mateo Camp Idle, Santa Cruz Mts. Comment
  SEINET11861777  Baccharis pilularis Unknown 1929-10-17 7293 San Mateo Kings Mt Comment
  UCSC007721  Baccharis pilularis Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC16631  Barbarea orthoceras Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain. Between April Brook and Radio Road. Comment
  CAS-BOT-BC16643  Barbarea orthoceras George Oberlander 1949-4-30 94 San Mateo San Francisco Watershed Reserve. North boundary. Comment
  SD99578  Barbarea orthoceras Darley F. Howe 1968-4-14 San Mateo San Francisco Game Reserve near San Bruno. Comment
  JEPS121453  Bellardia trixago Adam C. Schneider with C. Matt Guilliams 2013-5-17 188 San Mateo Crystal Springs Reservoir, West edge of Pulgas Ridge (near Interstate 280) Comment
  JROH3926  Bellardia trixago John Hunter Thomas 1987-5-19 24291 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  UCR101678  Bellardia trixago George K. Helmkamp, E. A. Helmkamp 1998-5-16 3737 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  UCR141422  Bellardia trixago June Latting 1975-6-8 s.n. San Mateo San Francisco Bay Region, Skyline Drive at Crystal Springs Reservoir 122 Comment
  CAS-BOT-BC100196  Bellis perennis Ray H. Yarris 1951-5-20 65 San Mateo Kings Mountain 91 Comment
  CAS-BOT-BC100193  Bellis perennis Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo Crocker Avenue Comment
  CAS-BOT-BC75791  Berberis pinnata W. R. Dudley 1899-4-18 s.n. San Mateo Santa Cruz Mountain Peninsula. Pescadero Creek. Comment
  CAS-BOT-BC75882  Berberis pinnata Robert Setzer 1969-3-29 2138 San Mateo Coloma Canyon, San Bruno Mountain. Comment
  CAS-BOT-BC100318  Blennosperma nanum var. robustum A. D. E. Elmer 1903-4-1 4521 San Mateo San Bruno Hills Comment
  SEINET10927832  Bolboschoenus maritimus Lewis S. Rose 1935-8-13 Rose 35565 San Mateo Salada. Salt marsh. 3 Comment
  JEPS101807  Bolboschoenus maritimus subsp. paludosus Dean W. Taylor 1991-8-9 12267 San Mateo Bean Hollow, on margin of pond between old highway and present Highway 1 alingment. 1 Comment
  CAS-BOT-BC95346  Bowlesia incana C. F. Baker 1902-4-12 510 San Mateo La Honda Comment
  UC140513  Bowlesia incana C. F. Baker 1902-4-12 510 San Mateo Pacific Coast, La Honda La Honda; Pacific Coast, La Honda Comment
  RSA120720  Boykinia occidentalis S. S. Tillett, I. Sternback 1956-6-25 548 San Mateo Patterson Creek on Middleton property just above entrance to Portola State Park. 366 Comment
  JROH4850  Brachypodium distachyon John Hunter Thomas 1981-5-25 20626 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4854  Brachypodium distachyon W. Lennihan 1980-5-19 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; eastern draw trail to San Francisquito Creek, about 1/3rd way down Comment
  JEPS26851  Brassica nigra Rimo Bacigalupi with J. H. Thomas and L. R. Heckard 1961-5-23 7714 San Mateo along Alpine Road near site of abandoned Alpine School Alpine School; Alpine Road 487 Comment
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Mar 12 2009
  JROH5555  Brassica nigra Toni Corelli 2013-6-6 380 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 12, 100 meters north of Mapache Gate. 127 Comment
  JROH4867  Briza maxima John Hunter Thomas 1982-9-12 21156 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4875  Briza maxima W. Lennihan 1989-5-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. After crossing dam, to left, on right side of path just before going downhill. Comment
  JROH4886  Briza minor John Hunter Thomas 1981-4-23 20469 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD57379  Briza minor D. H. Hartmann 1941-4-26 s.n. San Mateo West of Palo Alto. Comment
  CAS-BOT-BC482183  Brodiaea appendiculata Rimo Bacigalupi 1922-5-31 s.n. San Mateo Cedro field near Stanford University Comment
  UCSB841  Brodiaea coronaria Walker, Clifford 1954-4-20 San Mateo Corner of Jefferson and Canada Rds. Comment
  SEINET3884838  Brodiaea coronaria var. macropoda K. Harper 1984-4-25 84 -3 San Mateo Along crest of Jasper Ridge, Research Preserve, Stanford University.; 0 Comment
  UC1134026  Brodiaea elegans subsp. elegans N. Carlson 1935-6-20 72 San Mateo between Slate and Oil Creek; Santa Cruz Quad. 670 Comment
  SEINET3885153  Brodiaea pulchella K. Harper 1984-4-25 84 -8 San Mateo Along Crest of Jasper Ridge, Research Preserve, Stanford University.; 0 Comment
  JROH4587  Brodiaea terrestris subsp. terrestris John H. Thomas 1955-5-6 4979 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent grassy slopes Comment
  JROH4591  Brodiaea terrestris subsp. terrestris John Hunter Thomas 1981-4-23 20481 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC72476  Brodiaea terrestris subsp. terrestris Milo S. Baker 1904-5-15 San Mateo near Burlingame Comment
  CAS-BOT-BC483173  Brodiaea terrestris subsp. terrestris C. F. Baker 1902-4-6 462 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC483176  Brodiaea terrestris subsp. terrestris James McMurphy 1906-5-8 s.n. San Mateo Near head of Crystal Lake Comment
  CAS-BOT-BC149396  Bromus berteroanus Richard Hobbs 1982-4-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University, about 5 miles SW of the downtown section of Palo Alto. The Preserve consists of about 1400 acres. This from Area C Comment
  CAS-BOT-BC227633  Bromus carinatus Peter Rubtzoff 1977-4-16 8950 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon area. Comment
  CDA20476  Bromus carinatus R. Garcia 2004-5-4 PDR 1299033 San Mateo San Francisco Bay Area; 2091 Portola Rd, Woodside. 0 Comment
  UCD58019  Bromus carinatus L. R. Abrams 1902-5-11 2X 62 San Mateo Crystal Springs. Comment
  CAS-BOT-BC148994  Bromus carinatus var. carinatus A. G. Vestal 1925-6-13 s.n. San Mateo North Palo Alto. Pope Street. Comment
  JEPS113029  Bromus carinatus var. carinatus Dean W. Taylor 1988-3-30 9482 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
  JROH4904  Bromus carinatus var. carinatus W. Lennihan 1990-4-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Going north on fire road from Goya, before serpentine, 40 yards to right up small hill, middle of oaks, 50 yds from turn by blue oaks. Comment
  UC1037111  Bromus carinatus var. carinatus Leo Whitney 1935-3-20 2268 San Mateo Bayshore Highway 10 mi s of Cliff House; San Francisco, Bayshore Highway Comment
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Nov 12 2011
  UC153152  Bromus carinatus var. carinatus E. B. Copeland 1903-6-10 3303 San Mateo Montara Point; Pacific Coast, Montara Point Comment
  CAS-BOT-BC148766  Bromus carinatus var. marginatus John H. Thomas 1963-5-20 10124 San Mateo Ano Nuevo Island, about one half mile off shore and 20 miles northwest of Santa Cruz. Comment
  SJSU15317  Bromus commutatus John Rawlings 2011-5-27 1090 San Mateo Edgewood Preserve; just outside preserve at HWY280 overpass along Edgewood Trail. 168 Comment
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Feb 18 2015
  CAS-BOT-BC155721  Bromus diandrus Margaret Barry 1937-5-8 29 San Mateo Coal Mine Ridge. Comment
  SD99496  Bromus diandrus Ira L. Wiggins 1975-4-17 22141 San Mateo Menlo Park; between San Francisquito Creek and Willow Road; NE side of Southern Pacific right-of-way Comment
  CAS-BOT-BC155141  Bromus hordeaceus Walter Knight; Irja Knight 1964-4-13 s.n. San Mateo San Bruno Mountain. Power Line Ridge. Comment
  JROH4927  Bromus hordeaceus W. Lennihan 1990-3-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Behind Searsville lab. Comment
  RSA195568  Bromus hordeaceus John H. Thomas 1966-4-24 11580 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JROH4939  Bromus laevipes W. Lennihan 1990-4-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Eastern draw, 40 yards down. Comment
  RSA181249  Bromus laevipes John H. Thomas 1961-5-7 9256 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  JROH4942  Bromus madritensis subsp. madritensis John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4951  Bromus madritensis subsp. rubens John Hunter Thomas 1989-5-11 24740 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4952  Bromus madritensis subsp. rubens W. Lennihan 1990-4-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Escobar - across trail, on edge, from hybrid oak - about 4' further along the trail. Comment
  CAS-BOT-BC162230  Bromus maritimus R. S. Ferris 1921-5-28 2193 San Mateo Pescadero. Pebble Beach. Comment
  SEINET3923660  Bromus mollis K. Harper 1984-4-25 84 -6 San Mateo Along crest of Jasper Ridge, Research Preserve, Stanford University.; 0 Comment
  CAS-BOT-BC185397  Bromus vulgaris L. R. Abrams 1915-6-14 5562 San Mateo Kings Mountain Road. Comment
  RSA119336  Bromus vulgaris S. S. Tillett, I. Sternback 1956-6-24 534 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  CHSC22764  Cakile edentula Robert A. Schlising; Glenn Keator 1962-2-3 2048 San Mateo Coast Ranges. Along area at Gazos Creek and Highway 1. Comment
  CAS-BOT-BC185305  Calamagrostis koelerioides N. K. Carlson 1935-6-14 54 San Mateo 0.5 mile west of Hollow Tree Camp, north of Big Basin. 640 Comment
  CAS-BOT-BC185144  Calamagrostis nutkaensis H. L. Mason 1921-5-29 s.n. San Mateo Near Arroyo de Las Frijoles. Comment
  CAS-BOT-BC389754  Calandrinia ciliata J. Nieri 1953-2-21 s.n. San Mateo Hetch Hetchy Reservoir, Redwood City Comment
  CAS-BOT-BC438537  Calandrinia ciliata Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain. In Flower Garden adjacent to April Brook. Comment
  CAS-BOT-BC438539  Calandrinia ciliata John H. Thomas 1974-4-11 17128 San Mateo To the SE of Canada Road and Edgewood Road. NW of Woodside. 152 Comment
  JROH3328  Calandrinia menziesii John Hunter Thomas 1981-4-5 20263 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH4607  Calochortus albus John H. Thomas 1977-4-21 18539 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4612  Calochortus albus John Hunter Thomas 1986-5-1 23999 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC492211  Calochortus albus John H. Thomas 1971-5-2 15859 San Mateo Serpentine fields bordered by chaparral, near intersection of Canada and Edgewater roads. About 4 miles SW of center of Redwood City. 304 Comment
  UC648400  Calochortus albus Marion Ownbey and Ruth P. Ownbey 1938-7-7 1698 San Mateo 3 mi w Woodside; Santa Cruz Mts. Comment
  JROH4624  Calochortus argillosus John H. Thomas 1975-6-5 17940 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack Comment
  UCD78194  Calochortus argillosus Robert E. Preston 2008-6-11 2641 b San Mateo Between Lower Crystal Springs Reservoir and Skyline Blvd, ca. 0.5 mi NW of jct Skyline Blvd and Crystal Springs Rd 99 Comment
  POM196562  Calochortus luteus G. C. Kimber, Lucille Roush 1920-5-17 s.n. San Mateo Santa Cruz Mountain Peninsula: near Los Trancos Creek Comment
  CAS-BOT-BC389721  Calochortus tolmiei M. K. Wicksten 1971-6-16 39 San Mateo Huddart Prk. Comment
  CAS-BOT-BC493995  Calochortus tolmiei Le Roy Abrams 1902-5-20 s.n. San Mateo King's Mountain Comment
  CAS-BOT-BC494044  Calochortus venustus A. D. E. Elmer 1903-7-1 4763 San Mateo Portola Comment
  JEPS22891  Calycadenia multiglandulosa John H. Thomas 1958-11-22 7506 San Mateo about 5 mi sw of Palo Alto (Jasper Ridge); Jasper Ridge 152 Comment
  SEINET3480492  Calycadenia multiglandulosa L. S. Rose 1941-6-12 1897 San Mateo Emerald Lake, Emerald Lake, West of Redwood City 120 Comment
  POM129524  Calystegia purpurata A. D. E. Elmer 1903-06 4299 San Mateo Pescadero Creek Comment
  UC306753  Calystegia purpurata A. D. E. Elmer June, 1903 4299 San Mateo Pescadero Comment
  CAS-BOT-BC224650  Calystegia purpurata subsp. purpurata A. D. E. Elmer 1903-6-1 4299 San Mateo Pescadero Comment
  CAS-BOT-BC224657  Calystegia purpurata subsp. purpurata W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Peninsula. Near San Mateo Creek road Comment
  CAS-BOT-BC224659  Calystegia purpurata subsp. purpurata Ned Cahill 1974-5-13 278 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  HSC59092  Calystegia purpurata subsp. purpurata Clark L. Miller 1978-6-15 159 San Mateo Off old Hwy. 1, about 4 mi. S of Half Moon Bay Comment
  SD38589  Calystegia soldanella Edith A. Purer 1933-7-27 5354 San Mateo Pigeon Point Comment
  CAS-BOT-BC436445  Calystegia subacaulis Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain, east of quarry Comment
  SD38400  Calystegia subacaulis Janet Turner 1933-5-30 3723 San Mateo Between Skyline and Half Moon Bay. Comment
  CAS-BOT-BC160324  Camissoniopsis cheiranthifolia subsp. cheiranthifolia W. R. Dudley 1901-7-5 s.n. San Mateo Pescadero Comment
  JROH1646  Campanula griffinii John Rawlings 2007-5-9 1012 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 5. 124 Comment
  RSA17965  Campanula prenanthoides C. B. Wolf 1927-7-13 714 San Mateo La Honda Grade. Santa Cruz Mountains Comment
  SEINET10463189  Campanula prenanthoides Gray 1872-1 GRAY s.n. San Mateo SANTA CRUZ REDWOODS Comment
  SEINET3406227 Image available Campanula prenanthoides Lewis S. Rose 1933-7-25 33311 San Mateo Kings Mountain Comment
  JROH1476  Capsella bursa-pastoris John Hunter Thomas 1983-4-5 21324 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  JROH1479  Capsella bursa-pastoris John Hunter Thomas 1987-5-19 24290 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  CAS-BOT-BC37683  Cardamine californica Margaret A. Barry 1937-5-15 135 San Mateo On the south side of Coal Mine Ridge. Comment
  CAS-BOT-BC37687  Cardamine californica Lewis S. Rose 1936-3-11 36021 San Mateo Kings Mountain. 304 Comment
  JROH1485  Cardamine californica John Hunter Thomas 1983-4-5 21332 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JROH3903  Cardamine californica D. D. Davis 1903-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12004997  Cardamine integrifolia Patterson 1907-1 s.n. San Mateo Kings Mt., Santa Cruz Mountain peninsula Comment
  CAS-BOT-BC37989  Cardamine oligosperma Alice Eastwood 1933-4-30 s.n. San Mateo Lake Pilarcitos. Comment
  JROH1488  Cardamine oligosperma Le Roy Abrams 1902-4-5 2308 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  JROH1490  Cardamine oligosperma L. R. Abrams 1916-3-26 5586 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  JROH1494  Cardamine oligosperma John H. Thomas 1979-4-8 19447 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1500  Cardamine oligosperma John Hunter Thomas 1985-4-10 23515 San Mateo Jasper Ridge Biological Preserve, Stanford University; Whiskey Hill gate Comment
  JROH1504  Cardamine oligosperma John Hunter Thomas 1991-4-11 24982 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bridge Comment
  POM202951  Cardamine oligosperma Alice Eastwood 1933-4-30 s.n. San Mateo Lake Pilarcitos. Comment
  UC1056982  Cardamine oligosperma H. L. Mason 1927-4-23 3695 San Mateo Pescadero Creek near Bloomquist Mill; Pescadero Creek near Bloomquist Mill Comment
  CAS-BOT-BC281710  Carduus pycnocephalus Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  CDA6894  Carduus tenuiflorus Agricultural Commissioner May 1955 San Mateo San Mateo. 0 Comment
  CDA6895  Carduus tenuiflorus T. C. Fuller 1960-4-2 4078 San Mateo West of Skyline Boulevard, 1.6 miles south of Half Moon Bay Road. 0 Comment
  RSA395824  Carduus tenuiflorus Cynthia Taylor 1971-6-12 163 San Mateo Corner of Bragado Road and Old Country Road, Belmont 6 Comment
  CAS-BOT-BC18187  Carex Roxana S. Ferris 1918-3-31 753 San Mateo Edge of Helvetio (Mud) Lake, Coal Mine Ridge. Comment
  UCSC006297  Carex Randall Morgan 2001-10-19 3778 San Mateo Half Moon Bay, Moist flat on RMC Lonestar property, upper San Vincente Ck watershed Comment
  NY38978  Carex aequa E. L. Greene 1902-5-10 811 San Mateo Crystal Springs Lake Comment
  SEINET7549670 Image available Carex amplifolia Lewis S. Rose 1933-6-23 33250 San Mateo Kings Mountain. Comment
  JROH4316  Carex barbarae John Hunter Thomas 1986-5-17 24049 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4319  Carex barbarae John Hunter Thomas 1989-6-6 24759 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC19329  Carex barbarae Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Crystal Cave Canyon east of quarry. Comment
  CAS-BOT-BC19543  Carex bolanderi Lewis S. Rose 1933-6-23 33253 San Mateo Kings Mountain. Comment
  SEINET7552599 Image available Carex bolanderi Lewis S. Rose 1933-6-23 s.n. San Mateo Kings Mountain Steams. 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-BC18926  Carex densa W. R. Dudley 1894-5-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside to Crystal Springs. Comment
  CAS-BOT-BC18945  Carex densa LeRoy Abrams 1902-5-11 2444 San Mateo Crystal Springs. Comment
  JROH4335  Carex densa John Rawlings 2010-5-19 1051 San Mateo Jasper Ridge Biological Preserve, Stanford University. A few yards south of Trail 1 and west of its intersection with Trail a. 88 Comment
  UC824434  Carex densa W. R. Dudley 1896-4-4 San Mateo near Summit Springs, Kings Mountain Comment
  RSA783464  Carex densa Peter Rubtzoff 1975-5-21 7976 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction Comment
  UCD140274  Carex densa Lewis S. Rose 1937-4-30 37243 San Mateo Brishane. 6 Comment
  JROH4338  Carex globosa John Hunter Thomas 1983-4-5 21317 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grassy draw along path to redwood area. Comment
  JROH4343  Carex globosa John Hunter Thomas 1992-4-23 25152 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Rattlesnake Rocks and along trail to redwoods. Comment
  CAS-BOT-BC28411  Carex gracilior W. R. Dudley 1900-3-17 s.n. San Mateo A field N of Seal Cove Comment
  POM193755  Carex gracilior W. R. Dudley 1900-5-17 s.n. San Mateo Seal Creek? Santa Cruz Mountain Peninsula. Comment
  CAS-BOT-BC21814  Carex harfordii Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5251 San Mateo Tunitas. Comment
  CAS-BOT-BC21818  Carex harfordii Alice Eastwood; John Thomas Howell 1938-6-26 6070 San Mateo Pigeon Point. Comment
  JROH5599  Carex nudata John Rawlings 2013-4-30 1180 San Mateo Jasper Ridge Biological Preserve, Stanford University. Old horse trail crossing of San Francisquito Creek near Boething Nursery site. (Leave Trail 2 extension at metal post SE of last redwoods). 66 Comment
  UCR280163  Carex obnupta Peter Rubtzoff 1976-6-30 8711 San Mateo Central Coast, San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  CAS-BOT-BC118332  Carex praegracilis W. R. Dudley 1906-6-12 s.n. San Mateo In meadow on Mt. side W of Trippstore, Woodside. Comment
  CAS-BOT-BC117643  Carex serratodens LeRoy Abrams 1902-5-4 2425 San Mateo Woodside. Comment
  CAS-BOT-BC117646  Carex serratodens LeRoy Abrams 1902-5-4 2425 San Mateo Woodside. Comment
  POM248568  Carex subbracteata Alice Eastwood, John Thomas Howell, J. W. Stacey 1938-4-24 5256 San Mateo Pescadero. Comment
  RSA127081  Carex subbracteata John H. Thomas 1959-4-4 7657 San Mateo About 0.7 miles S. of Gazos Creek. About 6.5 miles southward from Pescadero. 46 Comment
  UC306626  Carex subbracteata A. D. E. Elmer June, 1903 4429 San Mateo Crystal Springs Lake Comment
  UC836142  Carex subbracteata Alice Eastwood, John Thomas Howell 1937-5-7 4326 San Mateo Visitacion Valley Comment
  UCR280162  Carex subbracteata Peter Rubtzoff 1976-6-30 8707 San Mateo Central Coast, San Bruno Mountains. 'Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; westernmost part of the area on slope across fence 220 Comment
  UC750651  Carex subbracteata Lewis S. Rose 1939-4-14 39063 San Mateo South San Franciso 15 Comment
  CAS-BOT-BC116817  Carex subbracteata var. 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-BC116822  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5256 San Mateo Pescadero Comment
  CAS-BOT-BC116834  Carex subbracteata var. subbracteata Elmer Ivan Applegate 1895-3-3 778 San Mateo Unspecified Comment
  CAS-BOT-BC115507  Carex tumulicola George Thomas Oberlander 1950-5-28 967 San Mateo Marsh, Pilarcitos Lake. Comment
  JROH4366  Carex tumulicola John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC115509  Carex tumulicola Wilhelm Nikolaus Suksdorf 1913-6-20 377 San Mateo Damp or springy places, Crystal Springs Lake. Comment
  SEINET3908568  Carex tumulicola Lewis S. Rose 1971-5-18 71031 San Mateo Tartan Trail Road. Hillsborough.; 0 91 Comment
  RSA15335  Carpobrotus chilensis C. B. Wolf 1927-1-29 146 San Mateo Pescadero Comment
  CDA20504  Carthamus creticus J. Beall 2004-8-6 PDR 1329641 San Mateo San Francisco Bay Area; at 60 Langley Hill Rd in La Honda. 0 Comment
  JROH4011  Castilleja H. J. Dengler 1961-7-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; bank of Corte Madera Creek in southern-most corner of the preserve Comment
  CHSC57513  Castilleja affinis Sandy Trimble 1987-4-13 1 San Mateo On the e slope of Hwy 84, 6.7 mi w of Hwy 1 and 8.6 mi e of Hwy 35. 274 Comment
  LA209094  Castilleja affinis A. A. Heller; 1907-4-20 8442 San Mateo Near Lake Merced 60 Comment
  POM298045  Castilleja affinis A. A. Heller 1907-4-20 8442 San Mateo Near Lake Merced. Comment
  SEINET12288583  Castilleja affinis Unknown 1932-1 8976 San Mateo Gov. Rolph Estate Comment
  JEPS17620  Castilleja affinis subsp. affinis Rimo Bacigalupi with G. Thomas Robbins 1955-8-4 5443 San Mateo just opposite Thornton Beach (e of State Highway 1) Comment
  JEPS26848  Castilleja affinis subsp. affinis Rimo Bacigalupi with L. Heckard and J. H. Thomas 1961-5-23 7711 San Mateo 0.25 mi below and s Portola State Park road junction with the Alpine Road (and just n of the Horseshoe Ranch, down road to Portola State Park) 457 Comment
  JROH3937  Castilleja affinis subsp. affinis Ellen Searby 1955-4-1 76 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  JEPS103888  Castilleja affinis subsp. affinis T. I. Chuang 1991-7-6 7862 San Mateo 3 mi E of Fort Bragg, on route 20 Comment
  JEPS60423  Castilleja affinis subsp. affinis T. I. Chuang and F. M. Chuang 1969-7-21 6663 San Mateo 2.5 mi from Tunitas Road junction with Skyline Boulevard (Tunitas Road) 487 Comment
  UCSC005957  Castilleja ambigua Randall Morgan 1995-6-6 2724 San Mateo Common at Bean Hollow State Beach Comment
  SD88447  Castilleja ambigua subsp. ambigua Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of Half Moon Bay Comment
  UC306603  Castilleja ambigua subsp. ambigua A. D. E. Elmer May 1903 4800 San Mateo San Pedro Comment
  CHSC1814  Castilleja densiflora subsp. densiflora V. Holt 1943-4-21 San Mateo Comment
  JROH3979  Castilleja densiflora subsp. densiflora John H. Thomas 1974-4-25 17199 San Mateo Jasper Ridge Biological Preserve, Stanford University; top of ridge Comment
  JEPS20314  Castilleja densiflora subsp. densiflora Lewis S. Rose 1956-5-7 56064 San Mateo w of San Mateo (Skyline Blvd) 182 Comment
  SBBG54568  Castilleja exserta F. W. Pennell, D. D. Keck 1940-5-15 25418 San Mateo E of upper Crystal Springs, SW of San Mateo Comment
  SJSU15800  Castilleja exserta subsp. latifolia Toni Corelli 2010-6-6 680 San Mateo Montara State Beach. Bluff top west of Highway 1 14 Comment
  UC103182  Castilleja exserta subsp. latifolia Katharine Brandegee Jun 1905 San Mateo Half Moon Bay Comment
  UC150065  Castilleja foliolosa L. R. Abrams 1904-4-10 San Mateo near Crystal Lake Comment
Read comments
Mar 12 2009
  CAS-BOT-BC32675  Castilleja franciscana Francis Whittier Pennell; David Daniels Keck 1940-5-15 25420 San Mateo East of upper Crystal Springs Lake, SW of San Mateo 91 Comment
  CAS-BOT-BC243827  Castilleja latifolia David D. Keck 1931-10-5 1294 San Mateo Four miles northeast of Half Moon Bay, on west side of Cahill Ridge, near headwaters of Pilarcitos Creek 150 Comment
  CAS-BOT-BC243829  Castilleja latifolia Otto M. Sokol 1953-5-9 86 San Mateo Just north of Pescadero Creek on coast road. Comment
  RSA448628  Castilleja latifolia D. D. Keck 1932-5-11 1768 San Mateo 2 miles north of San Gregorio Comment
  SD4825  Castilleja latifolia Ulysses S. Grant IV June 1925 San Mateo near La Honda Comment
  OBI9362  Castilleja rubicundula Lewis S. Rose 1966-5-2 66034 San Mateo Emerald Lake, W of Redwood City 91 Comment
  JROH3990  Castilleja rubicundula subsp. lithospermoides James Newman 1951-4-21 10 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  JROH3994  Castilleja rubicundula subsp. lithospermoides John H. Thomas 1961-4-8 9072 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG32465  Castilleja rubicundula subsp. lithospermoides L. S. Rose 1966-5-8 66034 San Mateo Emerald Lake, W of Redwood City 91 Comment
  UC311191  Castilleja subinclusa subsp. franciscana A. D. E. Elmer May 1903 4527 San Mateo San Bruno Hills 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
  SEINET7063807  Castilleja tenuis A. G. Vestal 1947-4-24 s.n. San Mateo Enclosure at jasper Ridge. UTM Zone 10, 568421mE, 4140420mN. (WGS84/NAD83). 174 Comment
  JEPS60422  Castilleja wightii T. I. Chuang and F. M. Chuang 1969-6-21 6662 b San Mateo about 2 mi s Half Moon Bay road junction and Skyline Boulevard Comment
  JEPS70084  Castilleja wightii L. R. Heckard 1972-4-16 2904 San Mateo e of Pilarcitos Lake Comment
  JEPS78274  Castilleja wightii L. R. Heckard with T. I. Chuang and Mike Morris 1979-6-21 5117 San Mateo s end Adobe Avenue, San Pedro Valley (below Eucalyptus grove); San Pedro Valley Comment
  POM15458  Castilleja wightii C. F. Baker 1902-4-12 508 San Mateo San Gregorio. Comment
  RSA152274  Castilleja wightii John H. Thomas 1961-5-7 9305 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  UC198266  Castilleja wightii Katharine Brandegee 1917-7-22 San Mateo Mussel Rock Station, Ocean Shore R.R. Comment
  HSC89852  Castilleja wightii Rimo Bacigalupi, G. Thomas Robbins 1954-6-18 4548 San Mateo La Honda grade, on the E side of the Sierra Morena 591 Comment
  JEPS88829  Castilleja wightii T. I. and F. M. Chuang 1991-7-1 7847 San Mateo ca 7 mi s Halfmoon Bay Comment
  RSA219032  Castilleja wightii Walter Knight, I. Knight 1967-1-18 s.n. San Mateo Top of Quarry 4. San Bruno Mountain. Comment
  RSA622154  Castilleja wightii John A. Churchill 1974-4-14 744121 San Mateo Half Moon Bay. Route 1 behind Half Moon Bay. Comment
  CAS-BOT-BC39379  Caulanthus lasiophyllus L. R. Abrams 1917-4-12 6434 San Mateo Near Crystal Springs Lake. Comment
  CDA24867  Caulanthus lasiophyllus D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  CAS-BOT-BC39384  Caulanthus lasiophyllus Walter Knight; Irja Knight 1965-5-9 1103 San Mateo San Bruno Mountains. Devil's Arroyo. Comment
  CAS-BOT-BC39388  Caulanthus lasiophyllus W. R. Dudley 1894-4-24 s.n. San Mateo Santa Cruz Peninsula. San Mateo. Comment
  CAS-BOT-BC48306  Ceanothus cuneatus A. D. E. Elmer 1903-3-1 4578 San Mateo Portola Comment
  CAS-BOT-BC48310  Ceanothus cuneatus Margaret A. Barry 1928-5-22 s.n. San Mateo Coal Mine Ridge Comment
  JROH3525  Ceanothus cuneatus var. cuneatus John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA169355  Ceanothus cuneatus var. dubius L. S. Rose 1964-3-23 64011 San Mateo Emerald Lake, hills W of Redwood City. 122 Comment
  SBBG116527  Ceanothus integerrimus D. H. Wilken with E. Painter 2003-5-10 16067 San Mateo Skyline Blvd (St Hwy 35), near head of La Honda Crk, 0.8 linear km NE of Allen Lookout, Santa Cruz Mtns 610 Comment
  JROH3528  Ceanothus oliganthus var. sorediatus Arthur Spiegler 1952-4-12 12 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  CAS-BOT-BC51238  Ceanothus papillosus George Oberlander 1950-3-18 522 San Mateo San Francisco Watershed Reserve, south boundary Comment
  CAS-BOT-BC51242  Ceanothus papillosus J. I. McMurphy 1906-5-20 13 San Mateo Santa Cruz Peninsula - King's Mt. Santa Cruz Mts. 457 Comment
  SEINET12209941  Ceanothus papillosus J. D. McMurphy 1906-1 13 San Mateo King's Mt., Santa Cruz Mts 457 Comment
  CAS-BOT-BC52274  Ceanothus thyrsiflorus C. F. B. 1902-4-12 511 San Mateo La Honda Comment
  CAS-BOT-BC52289  Ceanothus thyrsiflorus David D. Keck 1932-5-11 1773 San Mateo Three miles West of Kings Mountain, on road to Tunitas, west slope of Santa Cruz Mountains 457 Comment
  CDA34780  Ceanothus thyrsiflorus D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .175 San Mateo Swanton Rd just S of Ano Nuevo above Weddell Creek. Comment
  HSC23931  Ceanothus thyrsiflorus Mary Katherine Wicksten 1971-6-17 26 San Mateo Huddart Park, near parking are above Redwood Shelter Comment
  RSA157755  Ceanothus thyrsiflorus I. L. Wiggins 1925-5-24 1744 San Mateo Along county road from Pescadero to Pebble Beach along rich swamp land just before coming to the artichoke lands of the American Produce Co. Comment
  UC216272  Ceanothus thyrsiflorus W. R. Dudley 1904-12-7 San Mateo e Baker Beach (Santa Cruz Mountain Peninsula); , e of Baker Beach Comment
  UCSC011285  Ceanothus thyrsiflorus Unknown 1972-5-31 s.n. San Mateo Waddell Creek area Comment
  JROH588  Centaurea calcitrapa D. E. Breedlove 1971-5-11 19335 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Pinon Road along fence Comment
  CAS-BOT-BC274585  Centaurea calcitrapa G. H. Mallory 1919-7-21 s.n. San Mateo Santa Cruz Mountain Peninsula. Near San Mateo Comment
  CAS-BOT-BC274591  Centaurea calcitrapa A. D. E. Elmer 1903-7-1 4961 San Mateo Crystal Springs Lake Comment
  RSA220002  Centaurea calcitrapa R. E. Frenkel 1963-12-7 319 San Mateo San Francisco Water District, Whiting Ridge Road, about 0.4 mile north of the junction with Spring Valley Ridge Road Comment
  JEPS127866  Centaurea melitensis Adam C. Schneider 2013-5-17 181 San Mateo Crystal Springs Reservoir Comment
  JROH601  Centaurea melitensis John H. Thomas 1973-6-15 16849 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC306679  Centaurea melitensis A. D. E. Elmer 1903-6-1 4281 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC277121  Centaurea melitensis Margaret A. Barry 1937-6-22 167 San Mateo Exposed top of Coal Mine Ridge Comment
  RSA130992  Centaurea melitensis C. F. Leitholt 1894-8-13 s.n. San Mateo Devil's Canyon, Block Mountain. Comment
  JROH606  Centaurea solstitialis John Hunter Thomas 1981-10-25 20769 San Mateo Jasper Ridge Biological Preserve, Stanford University; near main gate Comment
  POM287523  Centaurium venustum Lyman Benson 1930-4-17 2068 San Mateo Stanford University. 122 Comment
  SD5599  Centromadia pungens Ulysses S. Grant IV 1925-9-2 San Mateo Burlingame Comment
  POM319936  Cerastium arvense Barbara Shervanick 1973-4-1 788 San Mateo San Bruno Mt. at first summit at end of Crocker Rd.; Mt. Range: San Bruno Mts.; Drainage Area: San Francisco Bay. Comment
  JROH1695  Cerastium glomeratum John H. Thomas 1975-4-18 17786 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC400166  Ceratophyllum demersum W. R. Dudley 1909-11-8 s.n. San Mateo Santa Cruz Mountain Peninsula. Hallidie Ranch, Portola Valley Comment
  CAS-BOT-BC135471  Cercocarpus betuloides var. betuloides J. I. McMurphy 1906-4-4 18 San Mateo Los Trancos Creek - Santa Cruz Mts. Comment
  JROH3623  Cercocarpus betuloides var. betuloides John H. Thomas 1964-4-7 10301 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near edge of Searsville Lake. Comment
  CDA4771  Chamaesyce serpens J. T. Howell 1979-8-11 53359 San Mateo Airport Sheraton, Airport Boulevard, Burlingame. 0 Comment
  RSA299223  Chamaesyce serpens J. T. Howell 1979-8-11 53359 San Mateo Airport Sheraton, Airport Blvd., Burlingame. Comment
  RSA149154  Chenopodium californicum John H. Thomas 1961-5-13 9338 San Mateo Coastal sand dunes at Franklin Point. Comment
  UCSC007731  Chenopodium californicum Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  UC1537380  Chenopodium murale Gordon H. True Jr. 1937-10-16 848 San Mateo near Thornton Beach 3 Comment
  JROH1826  Chenopodium rubrum var. humile John Hunter Thomas 1980-11-27 20190 San Mateo Jasper Ridge Biological Preserve, Stanford University; delta Comment
  JROH1829  Chenopodium vulvaria Ann Lambrecht, Carol Zabel 2005-8-24 19 San Mateo Jasper Ridge Biological Preserve, Stanford University; Bear Creek crossing, east bank Comment
  CAS-BOT-BC497727  Chlorogalum pomeridianum John H. Thomas 1963-5-20 10127 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  SD39113  Chlorogalum pomeridianum Janet Turner 1933-5-30 130 San Mateo Between Skyline and Half Moon Bay. Comment
  HSC15442  Chlorogalum pomeridianum var. divaricatum J. Wendell Howe 1930-5-27 152 San Mateo Pebble Beach, near ocean Comment
  RSA0105084  Chlorogalum purpureum T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3519 San Mateo Central Coast: Pebble Beach State Beach Bay, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay. 11 Comment
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Aug 30 2018
  UCR240779  Chlorogalum purpureum T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3519 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
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Aug 30 2018
  UC202786  Chorizanthe cuspidata var. cuspidata A. D. E. Elmer May, 1903 4793 San Mateo San Pedro Comment
  JROH3222  Chorizanthe diffusa Le Roy Abrams 1901-5-20 1653 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18289  Chrysolepis chrysophylla Carl B. Wolf 1927-6-21 428 San Mateo East slope of Kings Mt. Comment
  UCD166158  Chrysolepis chrysophylla Jack Major; M. Forde and S. Bamberg 1962-4-3 742 San Mateo Near Ano Nuevo Point. (Exact location unknown. Coordinates estimated by label maker.) Comment
  JEPS78658  Chrysolepis chrysophylla var. minor Edward Lee 1936-1-26 1742 San Mateo between Purisima Creek and Tunitas Creek (near summit) 609 Comment
  JROH2581  Cicendia quadrangularis John H. Thomas 1958-5-10 7154 San Mateo Jasper Ridge Biological Preserve, Stanford University. Growing in grassy openings among oaks to the north of the top of the ridge. Comment
  CAS-BOT-BC277885  Cirsium brevistylum George Oberlander 1949-7-24 283 San Mateo San Francisco Watershed Reserve. North of San Andreas L. Comment
  RSA0070579  Cirsium brevistylum A. D. E. Elmer 1903-06 4277 San Mateo Crystal Springs Lake. Comment
  UC1416530  Cirsium fontinale var. fontinale George E. Pilz 1971-5-9 616 San Mateo e side of Crystal Springs Reservoir, Interstate 280 has cut through the colony Crystal Springs Reservoir 121 Comment
  UC922267  Cirsium fontinale var. fontinale H. K. Sharsmith 1937-6-3 3952 San Mateo about 3 mi w of San Mateo; Crystal Springs Lake 152 Comment
  SEINET14157452  Cirsium fontinale var. fontinale W. N. Suksdorf San Mateo Comment
  SEINET5506166  Cirsium fontinale var. fontinale John Thomas Howell San Mateo Comment
  CAS-BOT-BC280132  Cirsium occidentale var. venustum A. D. E. Elmer 1903-6-1 4259 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC280521  Cirsium quercetorum Alice Eastwood; John Thomas Howell 1938-6-26 6078 San Mateo Crystal Springs Lake Comment
  CDA1533  Cirsium quercetorum T. C. Fuller 1971-6-1 19881 San Mateo Crystal Springs Reservoir E shore, 0.3 mi. SE of center causeway; Belmont. Comment
  UC615438  Cirsium quercetorum Beryl O. Schreiber 1932-5-29 314 San Mateo Crystal Springs Comment
  CAS-BOT-BC280504  Cirsium quercetorum L. R. Abrams 1918-4-30 7065 San Mateo Bayshore Road, San Bruno Hills Comment
  JROH639  Cirsium vulgare John H. Thomas 1974-8-3 17499 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH640  Cirsium vulgare John Hunter Thomas 1977-6-16 18799 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC285861  Cirsium vulgare Ira L. Wiggins 1977-7-23 22189 San Mateo Northerly side of San Francisquito Creek stream bed, ca 150 m upstream from Pope Street bridge, Menlo Park Comment
  CAS-BOT-BC223882  Cistus Greg de Nevers 1996-5-22 10811 B San Mateo Edgewood County Park 121 Comment
  UC1536828  Clarkia amoena Gordon H. True Jr. 1936-6-14 509 San Mateo Skyline-Salada Beach Road 365 Comment
  CAS-BOT-BC160925  Clarkia amoena subsp. amoena David D. Keck 1934-7-7 2937 San Mateo South of the mouth of Tunitas Creek, on slopes overlooking the ocean Comment
  RSA130900  Clarkia amoena subsp. amoena E. K. Balls 1958-7-19 23570 San Mateo State Highway 5, 2 miles NW of junction with road from Big Basin State Park 671 Comment
  CAS-BOT-BC164315  Clarkia davyi A. A. Heller 1906-6-8 8384 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks Comment
  CAS-BOT-BC172089  Clarkia davyi Peter H. Raven 1959-6-1 14455 San Mateo Pigeon Point Comment
  UC762862  Clarkia epilobioides R. F. Hoover 1941-4-23 4904 San Mateo Redwood City Hills Comment
  CAS-BOT-BC163968  Clarkia purpurea subsp. quadrivulnera W. R. Dudley 1903-5-31 s.n. San Mateo Alpine Road, Black Mt., Santa Cruz Range Comment
  CAS-BOT-BC164566  Clarkia purpurea subsp. viminea John H. Thomas 1971-5-2 15844 San Mateo Near intersection of Canada and Edgewater roads. About 4 miles SW of center of Redwood City 304 Comment
  JROH3009  Clarkia purpurea subsp. viminea John H. Thomas 1967-5-31 12935 San Mateo Jasper Ridge Biological Preserve, Stanford University 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-BC165142  Clarkia rubicunda Alice Eastwood; John Thomas Howell 1938-6-26 6067 San Mateo Open ground avove La Honda Comment
  CAS-BOT-BC165161  Clarkia rubicunda W. R. Dudley 1896-11-15 s.n. San Mateo Near Pilarcitos Lake Comment
  CAS-BOT-BC165177  Clarkia rubicunda A. D. E. Elmer 1903-6-1 4310 San Mateo Crystal Springs Lake Comment
  JEPS90055  Clarkia rubicunda Dean W. Taylor 1994-5-10 14269 San Mateo ca. 300 meters se of junction of Edgewood and Canada Roads (200 m w of trail parallel to and on w side of Highway 280, Edgewood Park, Santa Cruz Mountains); Santa Cruz Mountains, Edgewood Park, Highway 280 137 Comment
  UC1279894  Clarkia rubicunda Peter H. Raven 1957-6-20 10955 San Mateo hills above se end Lake San Andreas Comment
  UC1279905  Clarkia rubicunda Peter H. Raven 1957-6-24 10962 San Mateo just s Linda Mar (along State Highway 1) Comment
  CAS-BOT-BC165130  Clarkia rubicunda L. R. Abrams 1907-8-25 s.n. San Mateo Between [Pecadero] Pescadero and Half Moon Bay Comment
  CAS-BOT-BC165137  Clarkia rubicunda Robert Setzer 1969-7-18 3366 San Mateo Montara Beach Comment
  CAS-BOT-BC165139  Clarkia rubicunda Peter H. Raven 1957-6-30 11011 San Mateo 1.8 miles south of Sharp Park on State Highway 1 Comment
  SDSU8697  Clarkia rubicunda D. F. Howe 1963-7-31 3648 San Mateo Sea bluff, 3 miles south of Pacifica on #1 Comment
  SJSU11020  Clarkia rubicunda P. L. Rucker 1963-7-20 San Mateo Alpine Rd Comment
  UC1094013  Clarkia rubicunda Lewis S. Rose 1957-7-6 57115 San Mateo w San Mateo (Skyline Blvd.) 182 Comment
  UC1561235  Clarkia rubicunda Barbara Ertter 1989-6-4 8556 a San Mateo near jct. Crocker Ave. and Alexander Ave. (n side of hill that is n-most extension of San Bruno Mt. on n side of Guadalupe Canyon); Daly City Comment
  UCSC005473  Clarkia rubicunda Randall Morgan 1998-7-28 3328 San Mateo N stretch of Stage Road off Hwy 1 Comment
  POM271822  Clarkia rubicunda subsp. blasdalei Lyman Benson 1934-7-29 6114 San Mateo Moss Beach. Pcific Ocean watershed. 15 Comment
  RSA23202  Clarkia rubicunda subsp. blasdalei I. L. Wiggins 1938-7-9 8933 San Mateo Pigeon Point, about one half mile north of the Light House. Comment
  RSA209471  Clarkia rubicunda subsp. blasdalei R. Setzer 1969-7-18 3366 San Mateo Montara Beach Comment
  CAS-BOT-BC165599  Clarkia unguiculata A. D. E. Elmer 1903-6-1 4293 San Mateo Alpine School House Comment
  CAS-BOT-BC165603  Clarkia unguiculata C. F. Leithold 1894-8-13 s.n. San Mateo Devil's [Canon] Canyon, branch of Pescadero & Mill Cr., Black Mt. Comment
  UC7902  Claytonia parviflora subsp. parviflora J. Burtt Davy 1893-6-17 793 San Mateo Belmont Comment
Read comments
Sep 4 2011
  CAS-BOT-BC439595  Claytonia parviflora subsp. parviflora E. McClintock; Phillip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. Slope below Nike station. Comment
  CAS-BOT-BC439805  Claytonia perfoliata Ned Cahill 1974-4-29 168 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  JEPS127812  Claytonia perfoliata subsp. perfoliata Adam C. Schneider with C. Matt Guilliams 2013-4-7 76 San Mateo Comment
  JROH3350  Claytonia perfoliata subsp. perfoliata John Hunter Thomas 1981-4-5 20288 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek Comment
  CAS-BOT-BC91482  Clematis lasiantha Elizabeth McClintock 1979-5-28 s.n. San Mateo Gilmore McDowell Property. Woodside. Comment
  JROH3416  Clematis lasiantha John H. Thomas 1979-4-12 19450 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5687  Clematis lasiantha John Rawlings 2015-3-3 1311 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 9. 194 Comment
  POM151213  Clematis lasiantha C. F. Baker 1902-4-12 499 San Mateo La Honda. Comment
  SD49791  Clematis lasiantha John H. Thomas 1959-4-5 7666 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto, western end 152 Comment
  SEINET12099146  Clematis lasiantha J. H. Thomas 1959-1 7666 San Mateo Jasper Ridge, 5 mi SW of Palo Alto 152 Comment
  JROH2874  Clinopodium douglasii John H. Thomas 1971-5-30 15954 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC499372  Clintonia andrewsiana J. H. Thomas 1954-4-3 3823 San Mateo Along San Gregorio Creek, 1.5 mi w of La Honda 106 Comment
  CAS-BOT-BC499398  Clintonia andrewsiana W. R. Dudley 1893-5-27 s.n. San Mateo Between Woodside and Summit Springs Comment
  CAS-BOT-BC499403  Clintonia andrewsiana Anna F. Rodda 1932-5-2 s.n. San Mateo Laguna Honda Comment
  RSA130676  Collinsia heterophylla Josephine Randall 1907-6-8 384 San Mateo Portola Valley. Santa Cruz Peninsula. Comment
  RSA18322  Collinsia heterophylla Carl B. Wolf 1929-5-17 3714 San Mateo 1 mile W of Skyline Drive on Alpine Road. Comment
  JROH5692  Collinsia heterophylla var. heterophylla John Rawlings 2015-3-31 1419 San Mateo Jasper Ridge Biological Preserve, Stanford University; about 75 meters upstream of footbridge on Trail 11 135 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
  RSA176753  Collomia heterophylla John H. Thomas 1961-5-5 9217 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  RSA653552  Collomia heterophylla George K. Helmkamp, E. A. Helmkamp 1999-6-28 4978 San Mateo Pescadero Rd just N of Loma Mar. 107 Comment
  JROH215  Conium maculatum John Hunter Thomas 1981-5-5 20541 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  RSA0104570  Convolvulus arvensis Sandra M. Namoff 70 San Mateo Half Moon Bay, near Francis Beach State Park, on Kelly Ave SW of intersection with Hwy 1, easement. 18 Comment
  CAS-BOT-BC288964  Conyza floribunda Peter Rubtzoff; Patricia Fallon 1987-8-26 9838 San Mateo San Bruno Mts: Saddle area on N side of Guadelupe Canyon. Parkway W of Radio Rd junction; NW part of the area along old Guadelupe Rd Comment
  JROH4764  Corallorhiza striata John Hunter Thomas 1985-4-22 23540 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET4676141  Cordylanthus pilosus Lewis S. Rose 1941-8-9 41362 San Mateo Woodside.; 0 60 Comment
  JEPS20324  Cordylanthus pilosus subsp. pilosus Lewis S. Rose 1941-8-9 41362 San Mateo Woodside 548 Comment
  JROH4024  Cordylanthus pilosus subsp. pilosus John H. Thomas 1970-7-5 15660 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS23960  Cordylanthus rigidus subsp. rigidus John H. Thomas 1959-8-22 8075 San Mateo Jasper Ridge, 5 mi sw Palo Alto; Jasper Ridge 152 Comment
  UC26349  Cordylanthus rigidus subsp. rigidus Alice Eastwood 1896-9-6 San Mateo Crystal Springs Comment
  JROH4033  Cordylanthus rigidus subsp. rigidus Deane Bowers 1980-8-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; outskirts just down the road from the Escobar entrance Comment
  CAS-BOT-BC101476  Corethrogyne filaginifolia David D. Keck 1932-5-25 1785 San Mateo East side of Crystal Springs Lake Comment
  POM132435  Cornus californica C. F. Baker 1902-9-2 1551 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC209818  Cornus glabrata C. B. Wolf 1931-8-20 2326 San Mateo Los Trancos Creek, 2 miles back of Stanford University, near Schenkel's Camp 91 Comment
  CAS-BOT-BC210360  Cornus sericea Walter Knight; Walter Knight 1963-6-24 s.n. San Mateo San Bruno Mountain. Quarry 4 Comment
  UC1122745  Cornus sericea subsp. sericea G. E. Sindel 1935-8-13 329 San Mateo San Gregorio Santa Cruz Quad., San Gregorio Comment
  UC1135187  Corylus californica G. E. Sindel 1935-7-31 318 San Mateo 1 1/2 mi sw of La Honda; California Forest Experiment Station 213 Comment
  CAS-BOT-BC180280  Corylus cornuta subsp. californica Robert Setzer 1969-3-29 2137 San Mateo Colma Canyon along stream bank. San Bruno Mountain Comment
  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-BC180363  Corylus cornuta subsp. californica W. R. Dudley 1896-2-15 s.n. San Mateo Alpine Road t Black Mt. Santa Cruz Peninsula Comment
  CAS-BOT-BC180374  Corylus cornuta subsp. californica Walter Knight 1964-9-14 849 San Mateo On sandstone ridge between Peak Mt. and Highway 1 Comment
  POM270391  Corylus cornuta var. californica Lyman Benson 1931-2-28 2613 San Mateo Town: Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 183 Comment
  SEINET12034013  Corylus rostrata var. californica Unknown 1930-1 7313 A San Mateo Los Francoo Woods Comment
  CAS-BOT-BC287202  Cosmos bipinnatus Prof. W. R. Dudley 1894-3-28 s.n. San Mateo Santa Cruz Mt Peninsula.l Opposite Halfmoon Bay Comment
  CAS-BOT-BC141552  Cotoneaster pannosus Elizabeth McClintock; Paul Reedberg 1989-9-4 s.n. San Mateo West end of industrail park - San Bruno Mountains Comment
  JROH3634  Cotoneaster pannosus John H. Thomas 1972-8-18 16154 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC287304  Cotula australis Le Roy Abrams 1902-4-13 2323 San Mateo Lake San Andreas Comment
  JROH659  Cotula australis John H. Thomas 1979-4-8 19445 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM88012  Cotula australis L. R. Abrams 1902-4-13 2323 San Mateo San Andreas Lake. Comment
  JROH661  Cotula coronopifolia John Hunter Thomas 1981-5-14 20583 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Lab Comment
  RSA176543  Cotula coronopifolia John H. Thomas 1963-5-8 10063 San Mateo San Bruno Mtn in northern part of county. 305 Comment
  CAS-BOT-BC291470  Cotula coronopifolia R. Bacigalupi 1941-10-22 2747 San Mateo Very close to the San Francisco - San Mateo County Line Comment
  CAS-BOT-BC291477  Cotula coronopifolia John Thomas Howell 1924-9-28 660 San Mateo Leslie Salt Rifinery, San Mateo Comment
  UCR121261  Cotula mexicana Don Pendleton 2002-4-8 s.n. San Mateo San Francisco Bay Region, Sharp Park Golf Course, Pacifica 15 Comment
  CAS-BOT-BC427608  Crassula aquatica Peter Rubtzoff 1965-10-19 5663 San Mateo Margin of Pilarcitos Lake Comment
  CAS-BOT-BC427831  Crassula connata John H. Thomas 1956-4-7 5626 San Mateo Jasper Ridge, about 3.5 miles SW of Stanford University. 182 Comment
  JROH1890  Crassula connata John Hunter Thomas 1985-4-10 23516 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1888  Crassula connata John H. Thomas 1977-4-2 18509 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1894  Crassula tillaea Toni Corelli 2008-3-10 344 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Lab in bare areas along old road cut 113 Comment
  UC571142  Crassula tillaea Herbert L. Mason 1927-4-23 3690 San Mateo along roadside between La Honda and Pescadero Creek 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
  POM275977  Crataegus monogyna Lyman D. Benson 1930-5-3 2104 San Mateo Santa Cruz Mt. 244 Comment
  JROH666  Crepis vesicaria subsp. taraxacifolia John H. Thomas 1964-4-19 10323 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville end of ridge Comment
  UC19183  Crocanthemum scoparium var. scoparium J. Burtt Davy Jun 21 1893-Jun 23 1893 1157 San Mateo Pilarcitos Lake and Canyon Comment
  RSA152117  Crocosmia X crocosmiiflora John H. Thomas 1961-8-27 9700 San Mateo Western end of San Bruno Mountain 244 Comment
  JROH4977  Crypsis schoenoides John Hunter Thomas 1979-9-9 19718 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1377  Cryptantha microstachys John Hunter Thomas 1978-4-22 19102 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5669  Cryptantha microstachys John Rawlings 2014-5-6 1223 B San Mateo Jasper Ridge Biological Preserve, Stanford University; on the top of Trevor's Knoll, about 70 m north of Trail 10. 181 Comment
  CAS-BOT-BC80523  Cupressus arizonica Elizabeth McClintock; P. Reeberg 1989-5-2 s.n. San Mateo grassland above Harold Avenue, Brisbane 121 Comment
  CAS-BOT-BC80786  Cupressus macrocarpa John H. Thomas 1967-5-2 12814 San Mateo Millbrae. Along Skyline Blvd. near Millbrae Ave. Comment
  CAS-BOT-BC80790  Cupressus macrocarpa J. H. Thomas 1964-6-19 10423 San Mateo About 1/2 mi below Skyline Blvd. on Half Moon Bay Road toward Crystal Springs Reservoir. Comment
  UC1303040  Cupressus macrocarpa J. H. Thomas 1964-6-19 10423 San Mateo 0.5 mi below Skyline Blvd. (on Half Moon Bay Road toward Crystal Springs Reservoir); Half Moon Bay Road Comment
  UCD126313  Cuscuta indecora var. indecora K. M. Koch 1929-7-20 s.n. San Mateo Byron District, Coward. 487 Comment
  UC580080  Cuscuta salina var. major Ira L. Wiggins 1934-8-11 6970 San Mateo 1 mi n Redwood City (along Bayshore Highway) Comment
  CDA5329  Cyclospermum leptophyllum J. T. Howell 1975-9-13 51507 San Mateo Hillside Street just west of El Camino, Burlingame. 0 Comment
  CAS-BOT-BC287343  Cynara cardunculus John H. Thomas 1960-6-25 8800 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple St 7 Comment
  RSA195569  Cynodon dactylon John H. Thomas 1966-4-24 11581 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  RSA13334  Cynoglossum grande C. B. Wolf 1927-4-3 264 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  SD39210  Cynoglossum grande McCallum 1933-4-19 3703 San Mateo Woodside Comment
  SEINET191755  Cynoglossum grande R. C. Foster 1937-4-30 245 San Mateo Along Skyline Blvd just N of road to La Honda Comment
  JROH5016  Cynosurus echinatus John Rawlings 2013-4-13 1127 San Mateo Jasper Ridge Biological Preserve, Stanford University. Crest of ridge above Bear Creek serpentine. 96 Comment
  JROH4387  Cyperus eragrostis John H. Thomas 1968-10-29 14855 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC114461  Cyperus eragrostis George Thomas Oberlander 1949-7-24 318 San Mateo Marsh, Lower Crystal Spr. Lake. Comment
  RSA800277  Cyperus eragrostis Peter Rubtzoff 1988-6-9 9924 San Mateo San Bruno Mountains, Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, along Old Guadalupe Road in the northwestern part of the Saddle area, east of Saddle Trail junction. Comment
  JROH4391  Cyperus erythrorhizos John H. Thomas 1974-10-29 17643 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  JROH4402  Cyperus erythrorhizos Toni Corelli 2008-10-1 347 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake. 103 Comment
  JROH20  Cystopteris fragilis Herbert Dengler 1961-4-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek Comment
  CAS-BOT-BC198209  Cytisus striatus Rosemary Leen 1985-5-23 s.n. San Mateo Northeast Ridge, near Guadelupe Valley Rd., San Bruno Mountain Comment
  RSA101030  Dactylis glomerata G. Oberlander 1950-5-21 960 San Mateo Under Douglas fir, Cahill Ridge, San Francisco Watershed Reserve Comment
  CAS-BOT-BC192231  Danthonia californica Ira L. Wiggins 1929-5-10 3673 San Mateo At Pigeon Point Comment
  HSC81716  Danthonia californica Thomas W. Nelson, Jane P. Nelson 1980-5-3 5133 San Mateo Intersection of Hwy. 92 and Hwy. 280, W of San Mateo. Comment
  JROH5035  Danthonia californica H. J. Dengler 1967-4-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Found by the vernal spring at west end of the serpentine meadow Comment
  JROH5038  Danthonia californica John H. Thomas 1968-5-3 14437 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD60673  Danthonia californica var. americana Ira L. Wiggins 1929-5-10 3673 San Mateo Coastal bluff at Pigeon Point. Comment
  HSC23959  Daucus pusillus Mary Katherine Wicksten 1971-6-24 120 San Mateo Huddart Park, side of park entrance Comment
  UC1536896  Deinandra corymbosa Gordon H. True Jr. 1936-6-14 501 San Mateo s Salada Beach (meadow in canyon) 365 Comment
  CAS-BOT-BC299211  Deinandra corymbosa subsp. corymbosa Lewis S. Rose 1931-8-28 s.n. San Mateo Moss Beach Comment
  CAS-BOT-BC299193  Deinandra corymbosa subsp. corymbosa J. Clausen 1941-7-1 1870 San Mateo Base of Montara Mountain near Montara 91 Comment
  CAS-BOT-BC299205  Deinandra corymbosa subsp. corymbosa W. R. Dudley 1897-10-11 s.n. San Mateo Near Half Moon Bay (Spanishtown) Comment
  CAS-BOT-BC300007  Deinandra lobbii James I. McMurphy 1906-10-28 s.n. San Mateo San Francisquito Creek, along San Mateo-Santa Clara County line Comment
  CAS-BOT-BC292113  Delairea odorata James McMurphy 1905-10-19 s.n. San Mateo Above Portola Comment
  JROH680  Delairea odorata Cary Tronson 2007-11-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near horse trail along Corte Madera Creek, near the collection site of many-flowered tobacco Comment
  CAS-BOT-BC292116  Delairea odorata John H. Thomas 1956-12-23 6480 San Mateo At 198 Oak Court, Menlo Park Comment
  CAS-BOT-BC9214  Delphinium californicum Lewis Samuel Rose 1965-5-3 65058 San Mateo San Bruno Mountain, Colma Canyon 60 Comment
  UC511171  Delphinium californicum Lyman Benson 1930-5-12 2127 San Mateo Lake Searsville San Francisco Bay watershed, Santa Cruz Mt. Range, Stanford 152 Comment
  JROH3435  Delphinium californicum subsp. californicum John Hunter Thomas 1977-6-16 18771 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3438  Delphinium californicum subsp. californicum John Hunter Thomas 1987-5-19 24293 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC9229  Delphinium decorum Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountains, between April Brook and Radio Road Comment
  CAS-BOT-BC9245  Delphinium decorum W. R. Dudley 1900-3-17 s.n. San Mateo South side of summit of Montara Mountain Comment
  CAS-BOT-BC10286  Delphinium hesperium Harry A. Dutton 1900-4-29 s.n. San Mateo Unspecified Comment
  JROH3443  Delphinium hesperium subsp. hesperium John H. Thomas 1974-5-29 17396 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12099568  Delphinium nudicaule N. R. Dudley 1893-1 s.n. San Mateo Santa Cruz Peninsula, Beyond King's Mountain Comment
  POM270648  Delphinium patens Arthur L. Cohen 1935-4-21 606 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  CAS-BOT-BC7931  Delphinium variegatum Doris Kildale Gillespie 1930-4-21 9221 San Mateo Emerald Lake near Redwood City Comment
  UC136351  Delphinium variegatum C. F. Baker May 1902 748 San Mateo Woodside Comment
  JROH3466  Delphinium variegatum subsp. variegatum John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA95545  Deschampsia danthonioides L. S. Rose 1953-4-17 53016 San Mateo Redwood City, along Bayshore Highway 3 Comment
  JROH5066  Deschampsia elongata John Hunter Thomas 1982-7-3 21061 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC201912  Deschampsia elongata M. E. Lang 1923-5-1 s.n. San Mateo (Coal Mine Ridge) Mud Lakes Comment
  RSA791559  Deschampsia holciformis Peter Rubtzoff 1976-6-13 8639 San Mateo San Bruno Mtn: 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  SEINET10527676  Deschampsia holciformis Edwin B. Copel 1903-6-10 Copeland 3305 San Mateo Montara Point. Comment
  UC137117  Dicentra formosa C. F. Baker 1902-3-22 344 San Mateo Crystal Springs Lake Comment
  UC9936  Dicentra formosa J. Burtt Davy 1895-4-21 1060 San Mateo Pilarcitos Creek Comment
  CAS-BOT-BC500892  Dichelostemma capitatum Walter & Irja Knight 1965-4-4 36 -7 San Mateo San Bruno Mountain, Bitter Cherry Ravine in chaparral Comment
  JROH4655  Dichelostemma capitatum subsp. capitatum John H. Thomas 1967-5-10 12854 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4658  Dichelostemma capitatum subsp. capitatum John H. Thomas 1975-5-2 17856 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4662  Dichelostemma congestum John H. Thomas 1964-4-29 10333 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oakwoodland near Searsville end of ridge Comment
  UC634883  Dichondra donelliana H. L. Mason 1928-2-22 4156 San Mateo San Bruno Mountains Comment
  CAS-BOT-BC150448  Diplacus aurantiacus L. R. Abrams 1915-11-1 5480 San Mateo Searsville Ridge Comment
  CAS-BOT-BC150455  Diplacus aurantiacus Elizabeth McClintock 1965-3-28 s.n. San Mateo North Power Line Ridge Comment
  CAS-BOT-BC150464  Diplacus aurantiacus Carl B. Wolf 1930-11-5 1804 San Mateo Half way up east side of La Honda Grade, Santa Cruz Mtns. 304 Comment
  CAS-BOT-BC151994  Diplacus douglasii Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  CAS-BOT-BC121860  Dirca occidentalis Walter Knight; Irja Knight; James B. Roof; Gregory Whipple; Ihsan A. Al-Shehbaz 1969-9-22 2792 San Mateo 0.9 miles from Pilarcitos Dam en route to Montara Mountain. On San Francisco Water Dept. Property. 274 Comment
  CAS-BOT-BC121869  Dirca occidentalis Dennis E. Breedlove 1964-2-7 5916 San Mateo In San Andreas Canyon below the dam. Comment
  JEPS96866  Dirca occidentalis Dean W. Taylor 1972-2-27 1335 San Mateo near San Andreas Lake 743 Comment
Read comments
Jun 8 2011
  SBBG39502  Dirca occidentalis L. S. Rose 1970-1-30 70002 San Mateo 1 mi SE of San Andreas Lake; Santa Cruz Mts 304 Comment
  SD99465  Dirca occidentalis John H. Thomas 1968-2-11 14144 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  UC518034  Dirca occidentalis Lewis S. Rose 1933-6-9 33222 San Mateo San Andreas Lake Comment
  SBBG33466  Dirca occidentalis A. D. E. Elmer -Mar-1903 4123 San Mateo Alpine Road Comment
  SEINET12190188  Dirca occidentalis J. H. Thomas 1958-1 6980 San Mateo Jasper Ridge, about 5 SW of Palo Alto 183 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
  SJSU647  Dirca occidentalis S. R. Piazza 1941-3-2 San Mateo near S side Searsville L Comment
  POM169492  Disporum hookeri var. hookeri C. F. Baker 1902-4-6 650 San Mateo Crystal Springs Lake. Comment
  JROH3386  Dodecatheon hendersonii Herbert Dengler 1973-2-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. In oaks towards E. serp. Top of knoll from gully below 2nd enclosure. Comment
  UC1019562  Dodecatheon hendersonii H. J. Thompson 1952-3-6 1516 San Mateo 2 mi w Woodside (Kings Mountain Road); , w of Woodside Comment
  JROH1515  Draba verna John Hunter Thomas 1989-4-20 24641 San Mateo Jasper Ridge Biological Preserve, Stanford University; grassy area below dam Comment
  JROH1518  Draba verna John Hunter Thomas 1991-4-6 24975 San Mateo Jasper Ridge Biological Preserve, Stanford University; on west side of dam Comment
  CDA39076  Dracunculus vulgaris M. K. Beyers 2013-5-31 s.n. San Mateo Montara State Beach, McNee Ranch Trail Trailhead. Comment
  UC1964685  Drymocallis glandulosa Roger Raiche 1983-8-18 30634 San Mateo Montara Mt. Comment
  CAS-BOT-BC159532  Drymocallis glandulosa var. glandulosa Margaret A. Barry 1937-5-15 111 San Mateo Woods on Coal Mine Ridge Comment
  CAS-BOT-BC159547  Drymocallis glandulosa var. glandulosa John H. Thomas 1961-5-7 s.n. San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC159549  Drymocallis glandulosa var. glandulosa Hester Davis 1920-4-28 129 San Mateo Portola Valley - Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC159540  Drymocallis glandulosa var. glandulosa H. A. Lewis 1908-5-7 s.n. San Mateo Near Searsville Comment
  UC481507  Drymocallis glandulosa var. wrangelliana H. F. Copeland 1929-7-4 San Mateo La Honda Grade Comment
  JROH35  Dryopteris arguta John Hunter Thomas 1980-6-5 20000 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC67889  Dryopteris arguta W. R. Dudley 1897-1-11 s.n. San Mateo Santa Cruz Peninsula - Lower part of Butano Creek Comment
  RSA11000  Dryopteris arguta C. B. Wolf 1928-3-14 1537 San Mateo La Honda grade in the Santa Cruz Mountains 152 Comment
  SD38414  Dudleya caespitosa Edith A. Purer 1933-7-27 5383 San Mateo 2.0 miles south of Pigeon Point. Comment
  CAS-BOT-BC428061  Dudleya cymosa subsp. cymosa W. R. Dudley 1897-6-5 s.n. San Mateo Santa Cruz Peninsula. Flat Rock Waddell Creek Comment
  JROH5087  Echinochloa crus-galli John H. Thomas 1976-10-16 18416 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along or near San Francisquito Creek from the low flow crossing to the vicinity of the old fireplace ruins downstream. Comment
  SEINET3910868  Eleocharis montevidensis Lewis S. Rose 1950-5-20 50146 San Mateo Emerald Lake region hills w. of Redwood City.; 0 244 Comment
  CAS-BOT-BC203879  Elymus X hansenii Elizabeth McClintock; Paul Reeberg 1989-5-30 s.n. San Mateo San Bruno Mountains. Owl Canyon 121 Comment
  CAS-BOT-BC235206  Elymus multisetus Ned Cahill 1974-5-30 316 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH5129  Elymus multisetus John Hunter Thomas 1985-5-21 23663 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5137  Elymus multisetus John Hunter Thomas 1992-6-8 25370 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC204303  Elymus trachycaulus subsp. trachycaulus L. R. A. 1902-5-11 2452 San Mateo Crystal Springs Comment
  JROH5277  Elymus triticoides Herbert Dengler 1960-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; 200 yds inside preserve from Mantilla Drive Comment
  RSA176590  Epilobium brachycarpum John H. Thomas 1961-8-27 9696 San Mateo Colma; open sandy field near intersection of El Camino Real and F Street 46 Comment
Read comments
Jul 12 2015
  UC306521  Epilobium ciliatum subsp. watsonii A. D. E. Elmer July, 1903 4962 San Mateo Crystal Springs Lake Comment
  SEINET12868531  Epilobium ciliatum subsp. watsonii A. A. Heller 1906-1 8377 San Mateo Near Ocean View, San Francisco Comment
  RSA176752  Epilobium minutum John H. Thomas 1963-5-15 10092 San Mateo Jasper Ridge Biological Experimental Area. 5 miles SW of Palo Alto Comment
  JROH3073  Epilobium torreyi John H. Thomas 1961-4-29 9194 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA39514  Epipactis helleborine T. C. Fuller 1970-5-12 19528 San Mateo Emily Brown property, 3045 Ralston Avenue, Burlingame. 0 Comment
  JEPS79607  Equisetum hyemale subsp. affine Edward Lee 1978-8-19 San Mateo between Lake Pilarcitos and San Andreas Comment
  JROH64  Equisetum hyemale subsp. affine Toni Corelli 2005-10-12 307 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 13, north side of Leonard's bridge. 106 Comment
  CAS-BOT-BC57612  Equisetum telmateia A. D. E. Elmer 1903-3-1 4501 San Mateo Portola Comment
  CAS-BOT-BC57601  Equisetum telmateia Ira L. Wiggins 1931-3-15 5103 San Mateo between Skyline Boulevard and La Honda Comment
  JROH68  Equisetum telmateia subsp. braunii Lawrence J. Winship 1974-11-2 3 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  SBBG51402  Equisetum telmateia subsp. braunii J. Doty 1969-3-27 608 San Mateo S side of St Hwy 84, ca. 500 ft W of Bridge No 35-165, ca. 6 mi E of St Hwy 1 Comment
  POM25738  Equisetum telmateia var. braunii A. D. E. Elmer 1903-03 4501 San Mateo Portola Comment
  POM9508  Equisetum telmateia var. braunii C. F. Baker 1902-3-18 324 San Mateo West side King s Mountain. Comment
  CAS-BOT-BC204641  Eragrostis mexicana subsp. virescens John H. Thomas 1971-10-27 16028 San Mateo Near intersection of Alpine Road and Interstate Highway 280, behind the Stanford Campus Comment
  SEINET11859536  Erechtites argutus E. A. Purer 1933-8-13 5422 San Mateo near Belmont Comment
  JEPS112717  Eriastrum abramsii Dean W. Taylor 1994-5-10 14261 San Mateo Edgewood Park; ca. 300 meters SE of junction of Edgewood Road and Canada Road, ca. 200 m W of trail parallel to and on west side of Highway 280 137 Comment
  JROH3146  Eriastrum abramsii John H. Thomas 1961-6-7 9533 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC512628  Eriastrum abramsii Lewis S. Rose 1936-5-28 36305 San Mateo Emerald Lake, W of Redwood City 91 Comment
  UCR126191  Erica canaliculata H. Schironi 1979-1-18 s.n. San Mateo Near Half Moon Bay Comment
  JEPS19177  Ericameria ericoides Dr. L. M. Newlon 1921-1-1 242 San Mateo Sea shore from Salada to Mussel Comment
  JROH677  Erigeron canadensis Toni Corelli 2006-9-20 327 San Mateo Jasper Ridge Biological Preserve, Stanford University. Above Corte Madera Creek, west of Trail 12 106 Comment
  CAS-BOT-BC295075  Erigeron glaucus Daniel Cohen 1953-5-9 91 San Mateo Between Pescadero and San Gregorio Comment
  JROH694  Erigeron sumatrensis Toni Corelli 2011-8-30 371 a San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Dennis Martin site, above San Francisquito Creek 71 Comment
  CAS-BOT-BC216243  Eriodictyon californicum Josephine D. Randall 1907-6-29 164 San Mateo King's Mt. Road, Santa Cruz Peninsula Comment
  CAS-BOT-BC216246  Eriodictyon californicum Lewis S. Rose 1941-7-2 41288 San Mateo King's Mountain 480 Comment
  CDA34113  Eriodictyon californicum D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .153 San Mateo Santa Cruz Mountains; Along Route 9, ~5 km E of Big Basin Redwoods. Comment
  JROH2715  Eriodictyon californicum Daniel Cohen 1953-4-11 24 San Mateo Jasper Ridge Biological Preserve, Stanford University; on west side of Jasper Ridge Comment
  JROH2718  Eriodictyon californicum John H. Thomas 1970-7-5 15667 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA205654  Eriodictyon californicum Lewis S. Rose; 1932-5-3 32220 San Mateo Belmont 182 Comment
  UC24053  Eriodictyon californicum J. Burtt Davy Jun 21 1893-Jun 23 1893 1137 San Mateo Pilarcitos Lake and Canyon Comment
  UCSB16624  Eriodictyon californicum Schulte, John 1963-4-28 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  RSA766408  Eriogonum caninum Delzie Demaree 1933-5-25 10514 San Mateo Sky Line drive Comment
  UC912833  Eriogonum gracile Lewis S. Rose 1941-9-2 41432 San Mateo w Redwood City; Emerald Lake 91 Comment
  POM165225  Eriogonum gracile var. gracile Edward L. Greene 1902-9-10 1675 San Mateo Crystal Springs Lake 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
  CAS-BOT-BC251991  Eriogonum latifolium Alice Eastwood 1937-7-25 18884 San Mateo Pebble Beach, Pescadero Comment
  JEPS127881  Eriogonum latifolium Adam C. Schneider with Alison Colwell 2013-6-23 294 San Mateo Pacifica State Beach, west of CA State Highway 1. Comment
  POM165267  Eriogonum latifolium C. F. Baker 1903-6-30 3359 San Mateo Pilarcitos Comment
  CAS-BOT-BC389664  Eriogonum latifolium Sigal 1969-8-1 78 San Mateo Pescadero Beach Comment
  RSA273143  Eriogonum latifolium Glenn A. Gorelick 1967-4-11 s.n. San Mateo Approximately two miles from coast in San Bruno Mountains. Comment
  CAS-BOT-BC264777  Eriogonum luteolum Lewis S. Rose 1964-9-9 64073 San Mateo Emerald Lake, west of Redwood City 243 Comment
  CAS-BOT-BC264779  Eriogonum luteolum Lewis S. Rose 1931-8-28 s.n. San Mateo Crystal Spring Lakes Comment
  CAS-BOT-BC264782  Eriogonum luteolum Alice Eastwood 1912-6-10 345 San Mateo Crystal Springs Comment
  JEPS111094  Eriogonum luteolum Zoe Ellis Chandik 1992-7-14 92 -2 San Mateo Crystal Springs Reservoir, south edge of serpentine (sludge) talus slope, below Hwy 280 on San Francisco Watershed land, 0.1 mi N of Hwy 92 (Ralston Ave.) east of junction with Skyline Blvd 121 Comment
  POM263681  Eriogonum luteolum L. S. Rose 1941-9-2 41432 San Mateo Emerald Lake, west of Redwood City 90 Comment
  UCD100310  Eriogonum luteolum Lewis S. Rose 1964-9-9 64073 San Mateo Emerald Lake, west of Redwood City. 243 Comment
  JEPS83063  Eriogonum nudum Roy E. Buck, Randall A. Morgan, James A. West 1983-7-23 450 San Mateo 1.4 km w San Andreas Dam (at n end of Sawyer Ridge, on sw-facing slope above last curve in gravel ridge road before intersection above San Andreas Dam); San Francisco Watershed Reserve, Sawyer Ridge 312 Comment
  CAS-BOT-BC268995  Eriogonum nudum var. auriculatum A. D. E. Elmer 1903-6-1 4311 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC269000  Eriogonum nudum var. auriculatum Javier Penalosa 1963-3-30 2717 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF 91 Comment
  SBBG39490  Eriogonum nudum var. auriculatum L. S. Rose 1970-7-26 70080 San Mateo Hillsborough, Black Mtn, Skyline Blvd 121 Comment
  CAS-BOT-BC269007  Eriogonum nudum var. auriculatum L. S. Rose 1927-5-24 s.n. San Mateo San Mateo Comment
  RSA766375  Eriogonum nudum var. auriculatum D. D. Keck 1931-10-5 1278 San Mateo Between Woodside and Crystal Springs Lake. Comment
  CAS-BOT-BC261390  Eriogonum nudum var. indictum Chester Dudley No date on label 15 San Mateo West slope San Carlos Mts. Comment
  CAS-BOT-BC261452  Eriogonum nudum var. nudum Elizabeth McClintock; Paul Reeberg 1988-4-14 s.n. San Mateo San Bruno Mountains. On easternmost ridge above Shearwater Comment
  SD5712  Eriophyllum Ulysses S. Grant IV 1925-6-5 San Mateo Burlingame Comment
Read comments
Jul 10 2010
  CAS-BOT-BC304081  Eriophyllum confertiflorum Robert Robertson 1954-5-1 109 San Mateo 2 miles E of Pescadero 30 Comment
  RSA18308  Eriophyllum confertiflorum C. B. Wolf 1927-5-31 408 San Mateo North end of Searsville Lake. Comment
  RSA675661  Eriophyllum confertiflorum L. S. Rose 1950-5-20 50142 San Mateo Emerald Lake region, hills w. of Redwood City. 244 Comment
  RSA0056420  Eriophyllum confertiflorum Lewis S. Rose 1933-5-17 s.n. San Mateo Redwood City. Comment
  JROH709  Eriophyllum confertiflorum var. confertiflorum John Hunter Thomas 1980-6-5 19996 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC301268  Eriophyllum lanatum var. arachnoideum Josephine D. Randall 1907-6-29 68 San Mateo Santa Cruz Peninsula. Kings Mt. Road Comment
  CAS-BOT-BC124130  Eriophyllum latilobum Amos Arthur Heller 1907-5-28 8584 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  UC614530  Eriophyllum latilobum L. Constance 1938-5-16 2242 San Mateo Half Moon Bay Rd 2 mi sw San Mateo; San Mateo Creek 45 Comment
  CAS-BOT-BC301980  Eriophyllum staechadifolium Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  JEPS30882  Eriophyllum staechadifolium J. H. Thomas 1949-10-16 1151 San Mateo just n of outlet San Gregorio Creek Comment
  UCR121572  Eriophyllum staechadifolium George K. Helmkamp, E. A. Helmkamp 1999-6-28 5004 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  UCR122633  Eriophyllum staechadifolium George K. Helmkamp, E. A. Helmkamp 2001-6-2 6762 San Mateo Central Coast, Pillar Point Harbor, about 4 miles north of Half Moon Bay 6 Comment
  POM358131  Eriophyllum staechadifolium L. S. Rose 1938-8-18 38233 San Mateo Skyline Blvd., 3 miles south of San Francisco County line. 61 Comment
  JROH2602  Erodium botrys John H. Thomas 1975-4-19 17800 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET3558734 Image available Erodium botrys David D. Keck 1932-3-6 1391 San Mateo Portola. Comment
  UC619415  Eryngium armatum Wilhelm N. Suksdorf 1913-6-23 278 San Mateo Crystal Springs Lake Comment
  JROH5794  Eryngium jepsonii John Rawlings 2016-6-15 1885 San Mateo Jasper Ridge Biological Preserve, Stanford University. North side of road F, 157 yards east of its intersection with Trail 15 165 Comment
  CAS-BOT-BC54818  Erysimum franciscanum H. E. Parks; S. T. Parks 1930-3-10 0401 San Mateo Spring Valley Lakes. Comment
  CAS-BOT-BC54849  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-3-26 901 a and 901b ripe pods San Mateo Dunes just back of high sea cliff very near Sharp Park (Salada Beach). Comment
  CAS-BOT-BC54861  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-6-4 914 San Mateo Above southeast shore of Crystal Springs Lake, southwest base Pulgas Ridge. 91 Comment
  CAS-BOT-BC54886  Erysimum franciscanum James McMurphy 1909-3-20 s.n. San Mateo Crystal Springs. Comment
  CAS-BOT-BC54890  Erysimum franciscanum Elizabeth McClintock; Arthur Menzies 1963-2-16 s.n. San Mateo San Bruno Mountain. Below top of mountain in vicinity of the radio station. Comment
  RSA101842A  Erysimum franciscanum G. B. Rossbach 1939-4-2 908 -a San Mateo Just above and west of South end of San andreas Lake 213 Comment
  RSA102128  Erysimum franciscanum G. B. Rossbach 1955-3-26 573 San Mateo 1 mile North of Sharp Park (Salada) Comment
  RSA102129  Erysimum franciscanum G. B. Rossbach 1955-3-12 568 San Mateo Inland and SE of Devil s Slide, W edge of Montata Mountains 122 Comment
  UC765069  Erysimum franciscanum R. F. Hoover 1941-4-23 4903 San Mateo rocky hill near Crystal Springs Dam Comment
  RSA15249  Erysimum franciscanum C. B. Wolf 1927-2-19 s.n. San Mateo 1 mile from where Skyline Blvd. crosses the road to Halfmoon Bay Comment
  CAS-BOT-BC403538  Eschscholzia californica A. D. E. Elmer 1903-6-1 4680 San Mateo Crystal Springs Lake 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
  JEPS51732  Eschscholzia californica Dr. L. M. Newlon 1921-1 246 San Mateo sea shore from Salada to Mussel Comment
  JEPS51733  Eschscholzia californica Dr. L. M. Newlon 1921-1 245 San Mateo sea shore from Salada to Mussel Comment
  JROH3097  Eschscholzia californica Richard L. Garber 1971-5-11 7 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC403546  Eschscholzia californica H. L. Mason 1922-4-1 s.n. San Mateo At Pigeon Point Light Comment
  CAS-BOT-BC403554  Eschscholzia californica W. S. Chandler 1901-3-30 s.n. San Mateo San Mateo Comment
  CAS-BOT-BC202736  Euonymus occidentalis Margaret A. Barry 1938-5-29 260 San Mateo Corte Madera Creek near Coal Mine Ridge Comment
  JROH1797  Euonymus occidentalis var. occidentalis E. I. Applegate 1895-5-11 67 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Dam Comment
  JROH1803  Euonymus occidentalis var. occidentalis Carol Zabel 1989-5-5 14 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 1 on sandstone slope east of redwoods Comment
  UC1130403  Euphorbia crenulata H. S. Yates 1935-2-3 5002 San Mateo 2 mi s San Gregorio; Santa Cruz Quad. 152 Comment
  RSA176863  Euphorbia epithymoides John H. Thomas 1964-4-30 10342 San Mateo Palo Alto. San Francisquito Creek at University Avenue bridge. Comment
  JROH1966  Euphorbia lathyris Carol Zabel and Ruth Porter 1999-5-17 41 b San Mateo Jasper Ridge Biological Preserve, Stanford University; north side of trail 12 Comment
  HSC103383  Euphorbia oblongata Don Pendleton 2001-4-30 64453 San Mateo Along Sandhill Rd., next to Jasper Ridge Biological Reserve, on the north side of Portola Road, Portola Valley. Comment
  CDA9447  Euphorbia spathulata D. G. Kelch 2002-5-13 s.n. San Mateo Pulgas Ridge; SF watershed. Between Ralston Ave & I-280. 0 Comment
  CAS-BOT-BC310625  Eurybia radulina Margaret A. Barry 1937-7-17 203 San Mateo Coal Mine Ridge Comment
  JROH531  Eurybia radulina John Rawlings 2011-10-18 1089 San Mateo Jasper Ridge Biological Preserve, Stanford University. SW end of Road C bridge over San Francisquito Creek. 88 Comment
  CAS-BOT-BC310614  Eurybia radulina C. F. Leitholt 1894-8-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Devils Canon [Canyon], Black Mountain Comment
  SEINET10614933  Euthamia occidentalis Delzie Demaree 1933-9-24 Demaree 10531 San Mateo Rolling bay area. Leepsic Junction. P.O. Baden. Comment
  JROH5473  Festuca bromoides John Hunter Thomas 1983-4-20 21536 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing. Comment
  JROH5176  Festuca californica John H. Thomas 1967-5-12 12866 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA86775  Festuca 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-BC278358  Festuca californica subsp. californica Javier Penalosa 1963-3-9 2664 San Mateo San Bruno Mountain. Slopes southeast of the summit (1314 ft.) 381 Comment
  CAS-BOT-BC278477  Festuca idahoensis L. R. A. 1902-5-11 2450 San Mateo Crystal Springs Comment
  CAS-BOT-BC278479  Festuca idahoensis Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  JROH5481  Festuca microstachys John H. Thomas 1963-5-15 10093 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5497  Festuca myuros John H. Thomas 1973-3-12 16498 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5507  Festuca octoflora John Rawlings 2009-5-4 1029 San Mateo Jasper Ridge Biological Preserve, Stanford University; in Trail 9 where the trail make a sharp bend below the holly-leaved cherry alley and trends slightly uphill 142 Comment
  JROH5293  Festuca perennis John H. Thomas 1959-8-22 8086 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI21962  Festuca perennis Lewis S. Rose 1956-7-2 56116 San Mateo Skyline Blvd, Hills W of San Mateo 183 Comment
  CAS-BOT-BC279053  Festuca rubra Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  RSA218035  Filago gallica Walter Knight, I. Knight 1967-5-16 s.n. San Mateo Randolph Ave., south San Francisco Comment
  JROH246  Foeniculum vulgare Le Roy Abrams 1901-10-1 1025 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  POM87792  Fragaria californica L. R. Abrams 1902-5-20 2469 San Mateo Kings Mountain Comment
  RSA133096  Fragaria californica Donald A. Johansen 1933-5-18 709 San Mateo Along road from Portola to La Honda. Comment
  CHSC57097  Fragaria chiloensis Steven Triano 1988-5-24 216 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  RSA15343  Fragaria chiloensis Carl B. Wolf 1927-1-29 156 San Mateo Pebble Beach, along bluffs near Beach Comment
  CAS-BOT-BC437038  Fragaria chiloensis Elizabeth McClintock 1965-3-28 s.n. San Mateo April Brook, San Bruno Mountain Comment
  CAS-BOT-BC457511  Fragaria vesca subsp. californica Elizabeth McClintock; Paul Reeberg 1989-2-4 s.n. San Mateo Between Poison Oak Ravine and Tank Ravine, San Bruno Mountains Comment
  CAS-BOT-BC457533  Fragaria vesca subsp. californica Ira L. Wiggins 1925-4-1 1647 San Mateo on Kings Mountain Road 3/4 of a mile above Woodside in the old cut over redwood (Sequoia sempervirens) belt Comment
  CAS-BOT-BC52686  Frangula californica subsp. californica Carl B. Wolf 1927-12-31 1472 San Mateo 1/2 way up Kings Mt. Comment
  JROH3540  Frangula californica subsp. californica John H. Thomas 1973-5-5 16770 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3544  Frangula californica subsp. californica John Hunter Thomas 1977-6-16 18790 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along raised causeway Comment
  SBBG28507  Frangula californica subsp. californica C. B. Wolf 1927-11-27 San Mateo just S of Pescadero Comment
  CAS-BOT-BC53599  Frangula californica subsp. tomentella Carl B. Wolf 1927-12-31 1473 San Mateo 1/2 way up Kings Mt. Comment
  CAS-BOT-BC211603  Frankenia salina L. R. Abrams 1906-9-29 s.n. San Mateo Cooley's Landing Comment
  CAS-BOT-BC211606  Frankenia salina Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo Northwest beach, Point San Bruno, San Bruno Mountain Comment
  RSA391414  Frankenia salina D. D. Keck 1931-9-27 1269 San Mateo Dumbarton Bridge. Comment
  UC19157  Frankenia salina J. Burtt Davy 1893-6-17 808 San Mateo Belmont Comment
  CAS-BOT-BC223553  Fraxinus latifolia A. D. E. Elmer 1903-7-1 4615 San Mateo San Mateo Creek Comment
  POM130919  Fraxinus latifolia A. D. E. Elmer 1903-07 4615 San Mateo San Mateo Creek Comment
  SEINET6694664 Image available Fraxinus oregona W. R. Dudley 1893-1 San Mateo San francisquita creek near big tree Comment
  UC1140922  Fremontodendron californicum subsp. californicum W. R. Dudley 1897-12-29 San Mateo Santa Cruz Peninsula, Butano Creek Butano Creek; Santa Cruz Peninsula, Butano Creek Comment
  CAS-BOT-BC130146  Fritillaria affinis J. H. Thomas 1954-6-11 4268 San Mateo Along San Gregorio Creek about 1.5 mi. W. of La Honda 106 Comment
  SDSU20649  Fritillaria affinis Sean Ryan, Neal Kramer 2011-3-25 84 San Mateo N-facing slope 50m west of a jeep turnabout ~1.34mi E of where Bean Hollow Rd. crosses Lake Lucerne. 200m E of Arroyo de los Frijoles. Cloverdale Ranch. 112 Comment
  CAS-BOT-BC130121  Fritillaria affinis George Oberlander 1949-4-17 81 San Mateo Pilarcitos Canyon Comment
  JEPS4954  Fritillaria biflora Inez Smith 1915-3-15 San Mateo Hillsborough, El Nido Hillsborough; , El Nido Comment
  CAS-BOT-BC130385  Fritillaria liliacea Marion Gallagher; Gladys L. Smith 1978-6-3 4804 San Mateo Farm Hill above Redwood City Comment
  JEPS61919  Fritillaria liliacea Inez Smith 1915-3-15 San Mateo Hillsboro Comment
  SD39122  Fritillaria liliacea McCallum, Marie Cummings 1933-4-12 2148 San Mateo Open hills near Skyline Boulevard, above La Honda. Comment
  CAS-BOT-BC290702  Fumaria Peter Rubtzoff; B. Anderson 1988-4-12 9900 San Mateo San Bruno Mountain. Saddle area on north side of Guadelupe Canyon Parkway west of Radio Road junction; NW part of the area, near the old Guadalupe Road between Bog Trail and Saddle Trail Junctions. Comment
  CAS-BOT-BC183621  Galium aparine Peter Rubtzoff; Roman Gankin 1975-5-21 7966 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JEPS27349  Galium californicum subsp. californicum Rimo Bacigalupi with L. R. Heckard and Jim Roof 1961-4-24 7610 San Mateo just below rocky spur due north of true summit (directly below and ne of KQED radio power station); San Bruno Mountain 342 Comment
  JROH3784  Galium californicum subsp. californicum James McMurphy 1906-8-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3795  Galium murale John H. Thomas 1974-4-25 17217 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA124751  Galium murale John H. Thomas 1958-5-10 7138 San Mateo Jasper Ridge. About 5 miles SW of Palo Alto. 152 Comment
  UC1143094  Galium porrigens var. porrigens H. S. Yates 1935-2-3 509 San Mateo 1/2 mi se Pigeon Pt.; Santa Cruz Quadrangle Comment
  OBI9909  Galium triflorum L. T. Dempster 1956-5-15 1001 San Mateo Lake Pilarcitos Comment
  JROH5574  Gamochaeta ustulata John H. Thomas 1962-5-31 9896 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of the ridge Comment
  UC1118537  Gamochaeta ustulata H. S. Yates 1935-5-8 5219 San Mateo 2 mi sw Pescadero; Santa Cruz Quadrangle Comment
  UC134943  Gamochaeta ustulata E. B. Copeland 1903-6-14 3312 San Mateo Montara Point Pacific Coast Comment
  UCD84710  Gamochaeta ustulata Robert E. Preston 2009-6-16 2688 San Mateo Santa Cruz Mtns, ca. 0.5 mi NW of Waterman Gap. 347 Comment
  CAS-BOT-BC344858  Gamochaeta ustulata Peter Rubtzoff 1975-10-24 8431 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC194564  Garrya elliptica Margaret A. Barry 1938-1-23 222 San Mateo Northeast side of Coal Mine Ridge Comment
  UC1140923  Garrya elliptica W. R. Dudley 1895-2-10 San Mateo San Mateo Ravine Santa Cruz Peninsula (by road above point of rocks) Comment
  UC21592  Garrya elliptica J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  RSA116686  Garrya elliptica Helen M. Edwards 1917-02 s.n. San Mateo Los Traucos Canon [Canyon]. Comment
  JROH5185  Gastridium phleoides John H. Thomas 1973-6-10 16809 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5188  Gastridium phleoides John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA5304  Gaura sinuata T. C. Fuller 1974-5-21 19990 San Mateo San Pedro Valley County Park, east above the end of Linda Mar Boulevard, Pacifica. 0 Comment
  CAS-BOT-BC219143  Genista monspessulana Roxana S. Ferris 1921-3-20 2176 San Mateo La Honda-Pescadero Road 304 Comment
  CAS-BOT-BC219146  Genista monspessulana Elizabeth McClintock; Paul Reeberg 1988-6-7 s.n. San Mateo above the intersection of San Bruno Avenue and Annis Comment
  CHSC23145  Genista monspessulana Robert A. Schlising 1962-2-24 2082 San Mateo California Coast Range. On dry roadbank near La Honda. Comment
  JROH2002  Genista monspessulana John Hunter Thomas 1978-5-23 19222 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD119371  Genista monspessulana Annabelle Kleist 2008-5-28 Woo- 39 San Mateo Woodside, along Fox Hill Road. Comment
  JROH2617  Geranium dissectum John Hunter Thomas 1983-4-20 21533 San Mateo Jasper Ridge Biological Preserve, Stanford University. Low-flow crossing. Comment
  JROH2625  Geranium molle John H. Thomas 1967-3-26 12422 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2628  Geranium molle John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5790  Geranium purpureum Toni Corelli 2016-4-25 1250 San Mateo Jasper Ridge Biological Preserve, Stanford University; outside exclosure Rd. G 121 Comment
  JROH3156  Gilia achilleifolia subsp. multicaulis John H. Thomas 1977-4-19 18533 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
  UC133800  Gilia achilleifolia subsp. multicaulis A. Eastwood 1893-5-19 San Mateo San Carlos Mt. Comment
  JROH3163  Gilia clivorum John H. Thomas 1963-3-20 10025 San Mateo Jasper Ridge Biological Preserve, Stanford University; near poppy knoll Comment
  JROH2025  Glycyrrhiza lepidota John H. Thomas 1971-8-7 16016 San Mateo Jasper Ridge Biological Preserve, Stanford University; near west side of Searsville Lake Comment
  CAS-BOT-BC307437  Gnaphalium palustre George Oberlander 1949-7-30 322 San Mateo Edge of San Andreas Lake, San Francisco Watershed Reserve Comment
  POM358932  Gnaphalium ramosissimum E. A. Purer 1933-8-13 5420 San Mateo Near Belmont Comment
  SEINET3386993 Image available Gnaphalium ramosissimum Lewis S. Rose 1935-8-13 35568 San Mateo Salada, Brushy coastal hills. 30 Comment
  SEINET11849564  Gnaphalium ramosissimum Unknown 1933-1 10504 San Mateo Santa Clara Valley Comment
  JROH828  Grindelia John H. Thomas 1972-5-5 16079 San Mateo Jasper Ridge Biological Preserve, Stanford University 123 Comment
  CAS-BOT-BC302083  Grindelia Paul Reeberg 1989-5-19 s.n. San Mateo San Bruno Mountains. On ridge between Firth Canron [Canyon] & Brisbane Ravine, uphill water tank 152 Comment
  JROH811  Grindelia camporum G. H. Mallory 1909-7-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; south end of Jasper Ridge Comment
  UCD132477  Grindelia camporum John Thomas Howell 1964-12-6 41032 San Mateo Vacant lot near Southern Pacific Railroad station, Millbrae. Comment
  CAS-BOT-BC304508  Grindelia hirsutula W. R. Dudley 1894-1-28 s.n. San Mateo Santa Cruz Peninsula. Redwood Creek Comment
  CAS-BOT-BC304510  Grindelia hirsutula David D. Keck 1931-9-27 1273 San Mateo Dumbarton Bridge Comment
  CAS-BOT-BC304534  Grindelia hirsutula John Thomas Howell 1924-10-26 724 San Mateo Moss Beach Comment
  CAS-BOT-BC304558  Grindelia hirsutula Walter Knight; Irja Knight 1964-3-15 s.n. San Mateo San Bruno Mountain. Colma Canyon, south ridge Comment
  CAS-BOT-BC304563  Grindelia hirsutula W. R. Dudley 1900-5-19 s.n. San Mateo Santa Cruz Mountain Peninsula. By stage road 1/2 mile west of La Honda Summit Comment
  CAS-BOT-BC304566  Grindelia hirsutula George Oberlander 1949-7-10 220 San Mateo San Francisco Watershed Reserve. Northern Cahill Ridge Comment
  JEPS78925  Grindelia hirsutula Rimo Bacigalupi with G. T. Robbins 1954-6-18 4550 San Mateo road bank along Alpine Road 1/4 mi w Skyline Boulevard 701 Comment
  SD39801  Grindelia hirsutula Edith A. Purer 1933-7-27 5369 San Mateo Sand dunes, two miles south of Pigeon Point. Comment
  SEINET3139960  Grindelia hirsutula M. P. Dunford 1959-10-3 549 San Mateo Crystal Springs Lake, 1/4 mi N of jct of Hwy 5 (Skyline Blvd) & Ralston Avenue Comment
  UC1118555  Grindelia hirsutula G. E. Sindel 1935-7-25 309 San Mateo 0.25 mi n of Pescadero Creek (near mouth) Santa Cruz Quadrangle 6 Comment
  JROH816  Grindelia hirsutula D. E. Breedlove 1971-5-31 19369 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  UCR121573  Grindelia hirsutula subsp. hirsutula George K. Helmkamp, E. A. Helmkamp 1999-6-28 5005 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  SEINET7010152  Grindelia humilis R. A. Evers, Clara V. Evers 1975-8-24 115023 San Mateo Trailer Villa, Redwood City. Comment
  SEINET5709439 Image available Grindelia stricta Lowell E. Urbatsch 1972-1 1095 San Mateo Low area near coast along Hwy 1. Comment
  RSA0116908  Grindelia stricta var. angustifolia Lyman Benson 1945-7-29 11839 San Mateo Bayshore Highway at San Carlos. 3 Comment
  POM181504  Grindelia stricta var. platyphylla H. F. Copeland 1928-2-25 982 San Mateo Montara. Comment
  UC1132184  Hainardia cylindrica A. Hormay 1932-5-29 17 San Mateo San Bruno 1 Comment
  JROH439  Hedera helix John H. Thomas 1967-6-1 12974 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC158035  Hedera helix Phillip Wheeler; Elizabeth McClintock 1965-6-13 s.n. San Mateo Radion Road near KRON station Comment
  CAS-BOT-BC306285  Hedypnois cretica Thayne C. Parks 1963-5-28 321 San Mateo In Woodside Road, about 2 miles east of summit Comment
  CAS-BOT-BC309528  Helenium puberulum Philip Wheeler 1965-6-16 s.n. San Mateo San Bruno Mountain. In Colma Canyon Comment
  JEPS35430  Helenium puberulum James G. Daly 239 San Mateo San Gregorio watershed Santa Cruz Mts., San Gregorio 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
  RSA523310  Helenium puberulum Gordon H. True Jr. 1937-7-23 805 San Mateo Along Skyline Blvd.-Salada Beach Road. 305 Comment
  UCD18540  Helenium puberulum Roman Gankin 1950-7-4 8 San Mateo east side of the Peninsula Coast Range, off of the King's Mtn. Rd. behind Woodside. 609 Comment
  CAS-BOT-BC305341  Helianthella castanea Glenn L. Clifton 1988-5-11 17823 San Mateo San Bruno Mountain, canyon on north-facing slope above Brisbane, adjacent to right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain 256 Comment
  CAS-BOT-BC224054  Helianthemum scoparium Fred Hemphill 1973-5-6 772 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC305629  Helianthus californicus George Oberlander 1950-4-23 880 San Mateo San Francisco Watershed Reserve. Near stone gate south of Lower Crystal Spr. Lake Comment
  CAS-BOT-BC305928  Helminthotheca echioides Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  CAS-BOT-BC453465  Hemitomes congestum Louise Koenig 1928-6-1 s.n. San Mateo Skyline Boulevard in a canyon at the head of La Honda Creek Comment
  UC990615  Hemizonia congesta subsp. congesta James I. McMurphy 1909-6-13 San Mateo between Colma and San Bruno; Summit 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
  CDA7038  Hemizonia congesta subsp. luzulifolia A. C. Browne 1950-8-12 San Mateo Portola. 0 Comment
  JEPS23956  Hemizonia congesta subsp. luzulifolia John H. Thomas 1959-8-22 8078 San Mateo about 5 mi sw of Palo Alto; Jasper Ridge 152 Comment
  UC614964  Hemizonia congesta subsp. luzulifolia Beryl O. Schreiber 1932-5-29 308 San Mateo Crystal Springs Comment
  CAS-BOT-BC313454  Hemizonia congesta subsp. luzulifolia J. McMurphy 1909-8-29 s.n. San Mateo Summit between Crystal Springs Lake and Belmont, Santa Cruz Peninsula Comment
  OBI16216  Hemizonia congesta subsp. luzulifolia Lewis S. Rose 1964-9-5 64070 San Mateo Emeral Lake, W of Redwood City 244 Comment
  SD30842  Hemizonia congesta subsp. luzulifolia Edith A. Purer 1933-8-4 5398 San Mateo Along roadsides of Bayshore Highway. Comment
  RSA133899  Hemizonia corymbosa subsp. corymbosa John H. Thomas 1959-8-16 8067 San Mateo About 2 miles N of Pigeon Point along the coast. 15 Comment
  RSA184852  Hemizonia luzulifolia L. S. Rose 1965-8-27 65094 San Mateo Emerald Lake, West of Redwood City 183 Comment
  POM360316  Hemizonia luzulifolia E. S. Spalding 1923-8-3 s.n. San Mateo 3 miles W of Redwood City, near Pulgas Tunnel. Comment
  SEINET11848429  Hemizonia luzulifolia L. S. Rose 1937-1 37662 San Mateo Emerald Lake, W of Redwood City 183 Comment
  JROH884  Hesperevax sparsiflora var. sparsiflora John H. Thomas 1970-1-1 15493 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH890  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1981-4-23 20484 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM87769  Hesperevax sparsiflora var. sparsiflora L. R. Abrams 1902-5-4 2417 San Mateo Woodside Comment
  CAS-BOT-BC310250  Hesperevax sparsiflora var. sparsiflora George Oberlander 1949-7-30 322 San Mateo San Francisco Watershed Reserve. On Sweeney Ridge Comment
  CAS-BOT-BC403869  Hesperocnide tenella Margaret A. Barry 1938-5-29 264 San Mateo Corte Madera Creek near Coal Mine Ridge Comment
  JROH4231  Hesperocnide tenella John Hunter Thomas 1981-5-5 20539 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC403867  Hesperocnide tenella George Oberlander 1950-4-16 695 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon Comment
  JROH2922  Hesperolinon micranthum John H. Thomas 1963-5-15 10093 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2921  Hesperolinon micranthum Herbert L. Mason 1921-5-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; top of Jasper Ridge Comment
  CAS-BOT-BC148465  Heteromeles arbutifolia J. H. Thomas 1949-10-16 1156 San Mateo Between Skyline Drive and Searsville Lake 304 Comment
  JROH3682  Heteromeles arbutifolia John Hunter Thomas 1981-2-14 20223 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC481555  Heteromeles arbutifolia H. F. Copeland 1929-7-4 San Mateo La Honda Grade Comment
  JROH904  Heterotheca grandiflora John Hunter Thomas 1982-9-23 21163 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH905  Heterotheca grandiflora Monica Bjorkman 1991-11-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; SLAC corridor Comment
  SD30675  Heterotheca sessiliflora subsp. bolanderi Edith A. Purer 1933-8-4 5400 San Mateo Along Bayshore Highway near Redwood City. Comment
  CAS-BOT-BC310772  Heterotheca sessiliflora subsp. echioides Margaret A. Barry 1937-9-24 217 San Mateo Coal Mine Ridge Comment
  UC202810  Heuchera micrantha var. diversifolia A. D. E. Elmer July, 1903 4762 San Mateo Pilarcitos Stone Dam Comment
  UC858020  Heuchera micrantha var. erubescens Lewis S. Rose 1939-6-16 39280 San Mateo Kings Mountain 670 Comment
  CAS-BOT-BC424378  Heuchera micrantha var. hartwegii Walter & Irja Knight 1963-7-14 s.n. San Mateo Base of Quarry 2; San Bruno Mountain Comment
  CAS-BOT-BC319633  Hieracium albiflorum George Oberlander 1950-5-6 997 San Mateo Sawyer Ridge, San Francisco Watershed Reserve Comment
  CAS-BOT-BC319636  Hieracium albiflorum Josephine D. Randall 1907-6-29 82 San Mateo Portola Valley, Santa Cruz Peninsula Comment
  UCR121585  Hieracium argutum George K. Helmkamp, E. A. Helmkamp 1999-6-28 4964 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
  POM87688  Hierochloe occidentalis Le Roy Abrams 1902-1-7 2258 San Mateo Kings Mts. Comment
  CAS-BOT-BC55435  Hirschfeldia incana Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountains. Lower part of Colma Canyon. Comment
  CAS-BOT-BC289249  Holcus lanatus George Oberlander 1949-7-10 262 San Mateo San Francisco Watershed Reserve, south boundary Comment
  CAS-BOT-BC289251  Holcus lanatus Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo Crocker Avenue, San Bruno Mountain Comment
  HSC24044  Holodiscus discolor Mary Katherine Wicksten 1971-6-17 11 San Mateo Huddart Park. Comment
  CAS-BOT-BC150061  Holodiscus discolor var. discolor Phillip C. Wheeler 1965-4-27 s.n. San Mateo Live Oak Canyon 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-BC284674  Hordeum brachyantherum subsp. brachyantherum Javier Penalosa 1963-3-30 2733 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF 289 Comment
  CAS-BOT-BC289532  Hordeum brachyantherum subsp. californicum Ned Cahill 1974-5-30 320 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi westward from Redwood City Comment
  SEINET10598954  Hordeum californicum Delzie Demaree 1932-5-16 Demaree 9144 San Mateo Spring Valley Lakes. Comment
  POM295720  Hordeum depressum Lyman Benson 1930-5-12 2125 San Mateo Stanford University. 152 Comment
  SEINET6851597  Hordeum geniculatum Robert A. Evers, Clara V. Evers 1975-8-24 115025 -B San Mateo Trailer Villa, Redwood City. Comment
  CAS-BOT-BC285150  Hordeum marinum subsp. gussoneanum H. A. Borthwick 1920-5-18 151 San Mateo Santa Cruz Mountain Peninsula. Woodside Comment
  JROH5236  Hordeum marinum subsp. gussoneanum John H. Thomas 1963-5-12 10081 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5239  Hordeum marinum subsp. gussoneanum John H. Thomas 1971-5-30 15953 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET11678403  Hordeum murinum E. A. Purer 1933-1 5372 San Mateo 2 mi S of Pigeon Point Comment
  JROH5252  Hordeum murinum subsp. glaucum John Hunter Thomas 1980-4-10 19879 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Searsville Lab. Comment
  CAS-BOT-BC271361  Hordeum vulgare W. R. Dudley 1896-4-4 s.n. San Mateo Near Crystal Springs, Santa Cruz Mountain Peninsula Comment
  JEPS29415  Horkelia californica L. R. Heckard 1962-7-16 1262 San Mateo near summit of San Bruno Mt. (w-facing slope to the ne of transmitting station KQED) 335 Comment
  UC1128147  Horkelia californica H. S. Yates 1935-2-3 5008 San Mateo 1/2 mi se Pigeon Pt.; Santa Cruz quad. 30 Comment
  UC83527  Horkelia californica Katharine Brandegee June 1905 San Mateo Halfmoon Bay Comment
  CAS-BOT-BC536141  Horkelia californica W. R. Dudley 1897-10-11 s.n. San Mateo Near Half Moon Bay (Spanishtown) Comment
  CAS-BOT-BC536150  Horkelia californica Alice Eastwood 1915-6-13 4711 San Mateo Granada Comment
  CAS-BOT-BC143928  Horkelia cuneata var. sericea A. A. Heller 1906-6-8 8374 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks Comment
  SEINET957356  Hosackia gracilis A. D. E. Elmer 1903-1 4860 San Mateo Lake San Andreas Comment
  JEPS100822  Hypericum canariense Dean W. Taylor 2000-6-12 17462 San Mateo Highway 1 about 1.3 miles North of Piegon Point, just north of Yankee Jim Gulch 10 Comment
  JEPS105544  Hypericum canariense Vern Yadon s. n. San Mateo S of Garzas Creek and N of Ano Nuevo; E side of Hwy 1 Comment
  UCD160240  Hypericum canariense Christopher Dillis 2015-5-15 3 San Mateo South of Pescadero on Hwy 1 (Cabrillo Hwy), 400 m south of Highway Brewing Company, then east 120 m on unmarked 1-lane dirt road; 10 m southwest of intersection with Old Coast Highway. 200 Comment
  POM289690  Hypochaeris glabra Lyman Benson 1936-5-9 7606 San Mateo Menlo Park; U.S. [Route] 99; Watershed: San Francisco Bay. 30 Comment
  UCSC007758  Hypochaeris glabra Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH933  Hypochaeris radicata John Hunter Thomas 1981-10-25 20775 A San Mateo Jasper Ridge Biological Preserve, Stanford University; on causeway Comment
  SD39737  Hypochaeris radicata Edith A. Purer 1932-7-18 4005 San Mateo Half Moon Bay Comment
  JROH929  Hypochaeris radicata John H. Thomas 1974-5-19 17383 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR198043  Iris douglasiana S. Seiki, Patricia Carter 1998-5-2 02 San Mateo Montara Mountain, city of Pacifica, c. 2.4 mi from San Pedro Valley along Devil's Slide heading west Comment
  POM250983  Iris douglasiana Lyman Benson 1935-4-27 6417 San Mateo La Honda Road, Santa Cruz Mts, east of Skyline Blvd., San Francisco Bay watershed. 457 Comment
  OBI2898  Iris longipetala Lewis S. Rose 1968-3-26 68009 San Mateo South base of San Bruno Mts, South San Francisco 30 Comment
  POM168969  Iris macrosiphon A. D. E. Elmer 1903-05 4503 San Mateo Portola Comment
  UCR156589  Iris macrosiphon P. W. Rundel 1963-6-11 1116 San Mateo Coast Mt. Range, San Francisco Bay drainage area, La Honda Rd. 457 Comment
  POM168926  Iris macrosiphon E. B. Copeland 1903-5-9 3052 San Mateo Big Basin of Pescadero Creek. Comment
  CAS-BOT-BC57729  Isoetes howellii W. R. Dudley 1910-5-26 s.n. San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC57730  Isoetes howellii W. R. Dudley 1909-10-31 s.n. San Mateo Woodside Valley Pond Comment
  CAS-BOT-BC112605  Isolepis cernua Alice Eastwood; John Thomas Howell 1938-6-26 6066 San Mateo Arroyo de los Frijoles Comment
  UC1192238  Jaumea carnosa Malcolm A. Nobs and S. Galen Smith 1949-8-26 1598 San Mateo marshes at mouth Pescadero Creek Comment
  JROH2777  Juglans hindsii John Hunter Thomas 1987-4-16 24203 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC352224  Juncus arcticus var. balticus Peter Rubtzoff; Elizabeth McClintock 1989-8-31 10043 San Mateo San Bruno Mountains, near Willow Pond (located near Saddle Trail), ca. 0.15 miles north of junction with Old Guadalupe Trail. Comment
  UCR254888  Juncus balticus Peter Rubtzoff, Elizabeth McClintock 1990-8-31 10045 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, along old Guadalupe Road, east of Saddle Trail junction 213 Comment
  CAS-BOT-BC173706  Juncus balticus Peter Rubtzoff 1977-11-24 9146 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UC1101045  Juncus bufonius Herbert L. Mason 1949-7-7 14028 San Mateo Mouth of Gazos Creek Comment
  JROH4450  Juncus bufonius var. bufonius John H. Thomas 1974-5-19 17384 C San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15957  Juncus bufonius var. bufonius John Rawlings, Ken Hickman 2016-5-26 1834 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  JROH4454  Juncus bufonius var. bufonius Carol Zabel 2003-3-19 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Along both sides of Road F at intersection with Trail 15. Comment
  JROH4467  Juncus bufonius var. occidentalis John Hunter Thomas 1978-4-25 19151 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5596  Juncus effusus subsp. pacificus John Rawlings 2014-2-4 1206 San Mateo Jasper Ridge Biological Preserve, Stanford University; ecotone between dominant Salix exigua on sandy lake shore and Typha angustifolia in drying Searsville lake bed, 50 m south of the boat landing and lab. 104 Comment
  CAS-BOT-BC176166  Juncus lescurii Peter Rubtzoff 1976-6-30 8708 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
  JROH4478  Juncus occidentalis John H. Thomas 1963-5-12 10078 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM176267  Juncus occidentalis E. B. Copeland 1903-03 3341 San Mateo Searsville. Comment
  SJSU15929  Juncus occidentalis John Rawlings, Toni Corelli 2016-4-29 1762 San Mateo Cascade Field, north and south of Cascade Cr. Trail, Ano Nuevo State Park 21 Comment
  UCD164095  Juncus occidentalis Peter Rubtzoff 1978-5-18 9170 San Mateo San Bruno Mountians.'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Marshy area northwest of Fog Forest. Comment
  RSA132400  Juncus patens John H. Thomas 1959-7-8 8023 San Mateo About 1/2 mile S of Pescadero beach along the coast highway. 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
  RSA18498  Juncus patens Carl B. Wolf 1927-7-14 622 San Mateo 1 mile south of summit of Kings Mt on Skyline Drive. Comment
  RSA786665  Juncus patens Peter Rubtzoff, Roman Gankin 1975-9-11 8375 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  CAS-BOT-BC210147  Juncus phaeocephalus Peter Rubtzoff 1978-7-8 9226 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  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
  JROH4519  Juncus xiphioides John Hunter Thomas 1981-4-29 20513 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
  JROH4045  Kickxia spuria John Hunter Thomas 1980-11-12 20161 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4048  Kickxia spuria John Hunter Thomas 1981-10-25 20772 San Mateo Jasper Ridge Biological Preserve, Stanford University; near main gate Comment
  JROH5265  Koeleria macrantha H. J. Dengler 1961-4-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Lower serpentine margin of gully on east serpentine near first or east-most enclosure. Comment
  JROH5268  Koeleria macrantha John H. Thomas 1968-5-22 14454 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA100995  Koeleria macrantha G. Oberlander 1950-4-23 914 San Mateo Sweeney Ridge, San Francisco Watershed Reserve Comment
  UCD85703  Koeleria macrantha A. A. Beetle 1942-6-11 3594 San Mateo 2 miles north of South San Francisco. Comment
  CAS-BOT-BC272320  Lachnagrostis filiformis George Oberlander 1950-5-6 923 San Mateo Upper Crystal Springs Lake, San Francisco Watershed Reserve Comment
  JROH947  Lactuca saligna John Hunter Thomas 1982-9-23 21161 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH965  Lagophylla ramosissima John Hunter Thomas 1983-6-29 22722 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD125097  Lamium amplexicaule J. D. Skoss 1948-8-22 105 San Mateo San Vicente Canyon, near Montara. Comment
  CAS-BOT-BC337895  Lasthenia Daniel Cohen 1953-5-9 70 San Mateo At Pescadero Comment
  CAS-BOT-BC339060  Lasthenia californica John H. Thomas 1961-5-7 9251 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC339067  Lasthenia californica John Thomas Howell 1926-4-24 1923 San Mateo Daly City Comment
  CAS-BOT-BC339071  Lasthenia californica John Thomas Howell 1933-5-3 11204 San Mateo San Bruno Hills Comment
  POM55213  Lasthenia californica A. D. E. Elmer 1903-04 4507 San Mateo San Bruno Hills Comment
  RSA195530  Lasthenia californica John H. Thomas 1966-4-6 11552 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto. Comment
  CAS-BOT-BC339069  Lasthenia californica Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountain. South Power Line Ridge Comment
  CAS-BOT-BC339094  Lasthenia californica W. R. Dudley 1899-5-14 s.n. San Mateo About hills southwest of Baden Comment
  RSA585988  Lasthenia californica Adree M. Desrochers 1988-4-21 306 San Mateo Near Palo Alto. Near Palo Alto. Jasper Ridge, Biological Preserve of Stanford University. Comment
  JROH970  Lasthenia californica subsp. californica Robert Robertson 1954-4-23 88 San Mateo Jasper Ridge Biological Preserve, Stanford University 170 Comment
  UC30457  Lasthenia californica subsp. californica J. Burtt Davy 1897-4-1 San Mateo Ocean View Comment
  CAS-BOT-BC324427  Lasthenia californica subsp. macrantha W. R. Dudley 1896-4-10 s.n. San Mateo Pebble Beach Pasture, Pescadero, Santa Cruz Peninsula Comment
  CAS-BOT-BC324429  Lasthenia californica subsp. macrantha H. L. Mason 1921-6-1 s.n. San Mateo Pebble Beach near Pescadero Comment
  CAS-BOT-BC355497  Lasthenia glaberrima W. R. Dudley 1906-5-22 s.n. San Mateo Largest Pond, Coal Mine Ridge Comment
  CAS-BOT-BC355499  Lasthenia glaberrima R. Bacigalupi 1923-4-16 s.n. San Mateo Field near San Francisquito Creek near Stanford University Comment
  CAS-BOT-BC355543  Lasthenia glabrata var. glabrata David D. Keck 1932-4-29 1452 San Mateo Redwood City Comment
  CAS-BOT-BC355546  Lasthenia glabrata var. glabrata A. D. E. Elmer 1903-5-1 4426 San Mateo Millbrae Comment
  SJSU653  Lasthenia gracilis A. W. Jacobs 1941-4-20 San Mateo Jasper Ridge above Searsville L Comment
  CAS-BOT-BC205027  Lathyrus jepsonii var. jepsonii W. R. Dudley 1897-5-12 s.n. San Mateo Santa Cruz Peninsula. Road from Bay to Menlo Comment
  JROH2028  Lathyrus latifolius John H. Thomas 1962-7-15 9924 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below dam Comment
  JEPS22021  Lathyrus littoralis G. Thomas Robbins with S. Galen Smith 1958-6-9 3859 San Mateo 0.5 mi n bridge crossing Pescadero Creek (about 0.25 mi w of State Highway 1) Comment
  POM277781  Lathyrus polyphyllus Lyman Benson 1930-5-26 2137 San Mateo Stanford University. Lake Searsville. 152 Comment
  UCD77799  Lathyrus torreyi Robert E. Preston 2001-5-30 1536 San Mateo Ca. 9 mi nnw of Boulder Creek, T8S R3W sw 1/4 of se 1/4 Section 10 304 Comment
  SEINET956312  Lathyrus vestitus Ira L. Wiggins 1925-1 1661 San Mateo On King Mountain Road three fourths of a mile above Woodside in the old cut over redwood. Comment
  POM19357  Lathyrus vestitus subsp. bolanderi Edward L. Greene 1902-1-15 8231 San Mateo West side Kings Mountain. Comment
  SEINET11062227 Image available Lathyrus vestitus subsp. bolanderi A. A. Heller 1907-5-28 8583 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  RSA15256  Lathyrus vestitus subsp. vestitus Carl B. Wolf 1927-2-19 218 San Mateo East side of Kings Mountain. Comment
  JROH2040  Lathyrus vestitus var. vestitus John Hunter Thomas 1985-4-22 23543 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  RSA434911  Lavatera cretica J. Doty 1969-3-24 580 San Mateo North side of Embarcadero Rd, just west of western boundary of Bysbee Marshlands Wildlife Preserve; Menlo Park. 2 Comment
  CAS-BOT-BC323154  Layia chrysanthemoides David D. Keck 1932-5-6 1487 San Mateo Near Skyline Boulevard, west of Millbrae Highlands. Comment
  CAS-BOT-BC323183  Layia chrysanthemoides Donald A. Johansen 1933-5-27 803 San Mateo Along Skyline Boulevard at junction of side road leading to Burlingame Comment
  CAS-BOT-BC321069  Layia gaillardioides Lewis S. Rose 1935-5-4 35149 San Mateo Burlingame Comment
  JEPS39180  Layia gaillardioides W. L. Jepson 1914-3-22 5735 San Mateo Redwood City Comment
  CAS-BOT-BC321071  Layia gaillardioides H. L. Mason 1921-7-14 s.n. San Mateo La Honda-Pescadero Road, near Pescadero Creek Comment
  CAS-BOT-BC327461  Layia hieracioides Fred Hemphill 1973-4-22 729 San Mateo San Carlos. Chaparral area N of Malabar Rd and Melendy Dr. 207 Comment
  JROH987  Layia hieracioides John Hunter Thomas 1977-6-16 18772 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR70738  Layia hieracioides David D. Keck 1932-5-11 1760 San Mateo Santa Cruz Mtns, Above Searsville Lake, on La Honda Road, E slope of mountains. 250 Comment
  CAS-BOT-BC327470  Layia hieracioides John H. Thomas 1967-5-7 12825 San Mateo Sunset Beach State Park, about 4.5 miles SW of Watsonville. Comment
  CAS-BOT-BC327479  Layia hieracioides Walter Knight; Irja Knight 1965-4-25 1085 San Mateo San Bruno Mountain; Devil's Arroyo Comment
  CAS-BOT-BC327501  Layia hieracioides John Thomas Howell 1938-5-1 13769 San Mateo Colma Canyon [written on sheet in other hand: San Bruno Hills, acc. J.T.H. notebook] Comment
  UCSC007762  Layia hieracioides Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC382096  Layia platyglossa John H. Thomas 1961-5-7 9266 San Mateo San Bruno Mountainin northern part of county. 396 Comment
  CHSC68147  Layia platyglossa A. D. E. Elmer 1903-4-1 5022 San Mateo Crystal Springs Lake. Comment
  JEPS90940  Layia platyglossa Dean W. Taylor 1989-4-18 10221 San Mateo ridgetop 0.4 mi n of Scarper Peak (Santa Cruz Mountains); Santa Cruz Mountains 502 Comment
  CAS-BOT-BC382077  Layia platyglossa George Oberlander 1949-5-21 157 San Mateo On top of Sawyer Ridge Comment
  CAS-BOT-BC382079  Layia platyglossa A. D. E. Elmer 1903-4-1 5022 San Mateo Crystal Srpings Lake Comment
  CAS-BOT-BC382082  Layia platyglossa Arthur Spiegler 1952-4-26 25 San Mateo 4 miles from Woodside on Canada Road to Skyline Blvd Comment
  CAS-BOT-BC382093  Layia platyglossa John H. Thomas 1971-5-2 15795 San Mateo Near interesection of Canada Road and Edgewater [Edgewood?] Road, about 3 miles westward from Redwood City 152 Comment
  CAS-BOT-BC382221  Layia platyglossa Donald A. Johansen 1932-5-21 687 San Mateo 1/2 mile north of Pigeon Point lighthouse. Comment
  CAS-BOT-BC221532  Lepechinia calycina Lewis S. Rose 1933-6-9 33225 San Mateo Belmont Comment
  JROH2793  Lepechinia calycina John H. Thomas 1975-5-2 17850 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12277319  Lepechinia calycina Unknown 1932-1 9175 San Mateo Gov. Rolph's Estate Comment
  JROH1536  Lepidium campestre V. Paranal 1976-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA52666  Lepidium didymum I. L. Wiggins 1949-7-2 12198 San Mateo Pescadero Beach. Comment
  CAS-BOT-BC89139  Lepidium didymum Elizabeth McClintock 1965-4-11 s.n. San Mateo San Bruno Mountains. Crocker Hills. Near Guadalupe Road. Comment
  CAS-BOT-BC89217  Lepidium draba Phillip C. Wheeler 1967-5-7 s.n. San Mateo San Bruno Mountains. Crocker Hills, near old Bayshore Highway. Comment
  CAS-BOT-BC89707  Lepidium latifolium John Thomas Howell 1978-7-18 53189 San Mateo At Airport Sheraton, Airport Boulevard, Burlingame. Comment
  JROH1539  Lepidium nitidum Daniel Cohen 1953-4-11 11 San Mateo Jasper Ridge Biological Preserve, Stanford University; on north shore of Searsville Lake Comment
  JROH1541  Lepidium nitidum John H. Thomas 1956-4-7 5618 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1552  Lepidium nitidum John Hunter Thomas 1983-2-21 21283 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC12601  Lepidium nitidum John H. Thomas 1974-4-11 17138 A San Mateo To the southeast of Canada Road and Edgewood Road. Northwest of Woodside. 152 Comment
  UCSB17149  Lepidium nitidum Schulte, John 1963-4-28 San Mateo Jurassic dike, Jasper Ridge; 3 miles southwest of Stanford campus; between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  JROH1565  Lepidium strictum John Hunter Thomas 1990-5-2 24834 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC226539  Leptosiphon acicularis H. A. Dutton 1900-4-17 s.n. San Mateo Santa Cruz Peninsula. On Jasper near S. border Woodside Comment
  CAS-BOT-BC226600  Leptosiphon ambiguus J. H. Thomas 1949-4-1 214 San Mateo West of Redwood City Comment
  CAS-BOT-BC226607  Leptosiphon ambiguus L. R. A. 1902-5-4 2415 San Mateo Woodside Comment
  CAS-BOT-BC226609  Leptosiphon ambiguus James McMurphy 1906-5-8 s.n. San Mateo Head of Crystal Springs Lake Comment
  RSA128501  Leptosiphon ambiguus James I. McMurphy 1906-5-8 s.n. San Mateo Head of Crystal Springs Lake Comment
  RSA18357  Leptosiphon androsaceus C. B. Wolf 1929-5-25 3731 San Mateo N of Pigeon Pt, San Mateo Comment
  SD3903  Leptosiphon androsaceus U. S. Grant IV Jun 1925 San Mateo Burlingame Comment
  JROH5691  Leptosiphon bicolor John Rawlings 2015-4-7 1454 San Mateo Jasper Ridge Biological Preserve, Stanford University; quarry off Trail 12 110 Comment
  CAS-BOT-BC226623  Leptosiphon grandiflorus W. R. Dudley 1896-7-30 s.n. San Mateo Santa Cruz Peninsula. Summit of hill just beyond La Honda Comment
  CAS-BOT-BC226728  Leptosiphon latisectus A. D. E. Elmer 1903-4-1 4746 San Mateo Cemeteries Comment
  CAS-BOT-BC226731  Leptosiphon latisectus A. D. E. Elmer 1903-4-1 4746 San Mateo Cemeteries Comment
  POM65524  Leptosiphon latisectus A. D. E. Elmer 1903-04 s.n. San Mateo Cemeteries Comment
  SD214610  Leptosiphon parviflorus Carl B. Wolf 1929-5-25 3727 San Mateo Pebble Beach so. of Pescadero Comment
  JROH3195  Leptosiphon pygmaeus subsp. continentalis H. J. Dengler 1963-5-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5570  Leptosiphon pygmaeus subsp. continentalis John Rawlings 2005-6-1 1153 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 11 in chaparral. 144 Comment
  RSA0103661  Leptosiphon rosaceus P. H. Raven 1950-4-30 1954 San Mateo Montara. 9 Comment
  CAS-BOT-BC324062  Lessingia arachnoidea John Thomas Howell 1926-10-9 2220 San Mateo Between Lake San Andreas and Crystal Springs Lake 91 Comment
  POM55553  Lessingia arachnoidea C. F. Baker 1902-09 s.n. San Mateo Crystal Springs Lake. Comment
  RSA136098  Lessingia arachnoidea W. R. Dudley 1902-9-21 s.n. San Mateo By road east of Crystal Springs Reservoir-near fork to Alius(?) House Comment
  SBBG39542  Lessingia arachnoidea L. S. Rose 1970-7-26 70077 San Mateo Skyline Blvd., Hillsborough, Black Mtn 121 Comment
  SEINET5782289 Image available Lessingia arachnoidea L. S. Rose 1941-9-6 41434 San Mateo San Mateo Canyon Comment
  UC1745126  Lessingia arachnoidea Leslie Zander 2000-9-14 San Mateo just W of Crystal Springs Road (N or Tartan Trail Rd.); Hillsborough Comment
  CAS-BOT-BC324171  Lessingia hololeuca Cherie Wetzel 1969-7-8 924 San Mateo near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  JEPS20328  Lessingia hololeuca Lewis S. Rose 1949-8-14 49165 San Mateo w of Redwood City; Emerald Lake Comment
  JROH1031  Lessingia hololeuca Rachel Hays 1972-7-31 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1032  Lessingia hololeuca John H. Thomas 1972-8-18 16153 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC342094  Leucanthemum vulgare John Thomas Howell 1949-7-4 25356 San Mateo On Skyline Blvd. north of Millbrae Comment
  JEPS71196  Leymus mollis subsp. mollis William S. Cooper 1925-5-28 9 San Mateo Miramar Comment
  CAS-BOT-BC272188  Leymus triticoides John H. Thomas 1962-5-20 10113 San Mateo Ano Nuevo Island about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC436529  Ligusticum apiifolium Elizabeth McClintock 1972-4-23 s.n. San Mateo San Bruno Mountain, above Fern Rock Comment
  JROH2983  Ligustrum lucidum Ann Lambrecht, Paul Heiple 2008-1-9 39 San Mateo Jasper Ridge Biological Preserve, Stanford University; on Trail c Comment
  POM193948  Lilaea scilloides W. R. Dudley 1893-05 s.n. San Mateo Santa Cruz Mountain peninsula: Back of Mira Vista, near Stanford University Comment
  CAS-BOT-BC130795  Lilium pardalinum W. S. Atkinson 1901-7-6 s.n. San Mateo Pescadero Creek near Harrison P.O. Comment
  CAS-BOT-BC389738  Lilium pardalinum J. Lovelle 1973-7-8 39 San Mateo Poscader [Pescadero] Cr. Comment
  SEINET12182118  Limnanthes douglasii Unknown 1932-1 9103 San Mateo Roadside between Spring Valley Lake and Sky Line Drive Comment
  UC1740209  Limnanthes macounii Rudolf Schmid 2000-2-24 2000 -2 San Mateo opposite Half Moon Bay Airport (along E side of Hwy 1) 10 Comment
Read comments
Aug 5 2007
  UCD166487  Limosella Peter Rubtzoff 1965-10-19 5661 San Mateo Pilarcitos Lake. Comment
  JROH4055  Limosella acaulis John Hunter Thomas 1980-11-12 20169 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4058  Limosella acaulis John Hunter Thomas 1982-8-13 21136 San Mateo Jasper Ridge Biological Preserve, Stanford University. Lake edge and in water Comment
  JROH4061  Limosella acaulis John Hunter Thomas 1982-8-15 21143 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake Comment
  CAS-BOT-BC238365  Limosella aquatica Ira L. Wiggins; Roxana S. Ferris 1939-8-2 9294 San Mateo Ano Nuevo Point Comment
  UC23367  Linanthus androsaceus J. Burtt Davy 1895-4-20 1072 San Mateo Crystal Springs Lake Comment
  UC336384  Linanthus androsaceus unknown 491 San Mateo Colma, S.P.R.R. Colma Comment
  UC202814  Linanthus androsaceus A. D. E. Elmer Apr 1903 4746 San Mateo Comment
  UC727278  Linanthus androsaceus Ira L. Wiggins 1943-4-21 10164 San Mateo 0.25 mi s jct. of hwy. from Pescadero with coastal road to Santa Cruz Comment
  JROH3184  Linanthus dichotomus Paul R. Hichborn 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC36067  Lithocarpus densiflorus var. densiflorus W. R. Dudley 1893-5-27 s.n. San Mateo Mt. Side above Woodside Comment
  CAS-BOT-BC36074  Lithocarpus densiflorus var. densiflorus Margaret A. Barry 1938-5-29 266 San Mateo Corte Madera Creek near Coal Mine Ridge Comment
  JROH3887  Lithophragma affine John H. Thomas 1971-4-3 15746 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3891  Lithophragma affine John Hunter Thomas 1983-4-5 21318 San Mateo Jasper Ridge Biological Preserve, Stanford University; below rattlesnake rock Comment
  JROH3892  Lithophragma affine John Hunter Thomas 1983-4-5 21318 San Mateo Jasper Ridge Biological Preserve, Stanford University; below rattlesnake rock Comment
  POM142561  Lithophragma affine subsp. affine C. F. Baker 1902-4-4 443 San Mateo Crystal Springs Lake Comment
  RSA159426  Lithophragma heterophyllum John H. Thomas 1961-5-14 9361 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  UC137140  Lithophragma heterophyllum C. F. Baker 1902-4-6 651 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC60213  Lobularia maritima Phillip Wheeler; Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountain. Colma Canyon along road. Comment
  CAS-BOT-BC342466  Logfia gallica John H. Thomas 1961-5-7 9265 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH731  Logfia gallica John H. Thomas 1967-5-10 12839 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH736  Logfia gallica John H. Thomas 1977-4-29 18569 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH748  Logfia gallica John Hunter Thomas 1992-4-23 25158 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Rattlesnake Rocks and along trail to redwoods Comment
  CAS-BOT-BC283228  Lolium multiflorum J. W. Tilden 1946-5-29 s.n. San Mateo 3 miles W of Redwood City on Jefferson Ave Comment
  CAS-BOT-BC283231  Lolium multiflorum Fred Hemphill 1973-5-14 810 San Mateo San Carlos, N of Malabar Rd and Melendy Dr 243 Comment
  SEINET10894233  Lolium multiflorum Blackwelder 1932-5-17 BLACKWELDER 108 San Mateo Skyline Boulevard. Comment
  SEINET11678784  Lolium multiflorum E. A. Purer 1933-1 5418 San Mateo Santa Clara Valley, near Belmont Comment
  CAS-BOT-BC269128  Lolium perenne David D. Keck 1932-5-6 1474 San Mateo Millbrae Highlands Comment
  UCD164421  Lolium perenne Peter Rubtzoff 1977-6-21 9058 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, northwest of Fog Forest. Comment
  UC75213  Lomatium caruifolium var. caruifolium C. F. Baker 1902-3-30 426 San Mateo Crystal Springs Lake Comment
  SEINET196566  Lomatium dasycarpum Pete Rowen 1950-4-16 89 San Mateo Colma Canyon San Brumo Mts. Comment
  JROH260  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1967-6-1 12969 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH258  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1963-3-20 10027 San Mateo Jasper Ridge Biological Preserve, Stanford University; north side of ridge near Westridge end Comment
  JEPS17120  Lomatium macrocarpum Elena R. Goodwin May, 1914 5739 San Mateo Redwood City Comment
  JROH274  Lomatium macrocarpum John H. Thomas 1962-5-31 9894 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH281  Lomatium macrocarpum John H. Thomas 1975-5-26 17915 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC202775  Lomatium utriculatum A. D. E. Elmer April, 1903 4794 San Mateo Crystal Springs Lake Comment
  SEINET7881745 Image available Lomatium utriculatum H. S. Yates 1935-1 5210 San Mateo 2 miles N. of Langley Hill Sec. 1 T. 7S. R.3W Comment
  CAS-BOT-BC240584  Lonicera hispidula Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  CAS-BOT-BC240605  Lonicera hispidula Josephine D. Randall 1907-6-8 19 San Mateo Santa Cruz Peninsula. Portola Valley Comment
  JROH1659  Lonicera hispidula John Hunter Thomas 1980-6-5 19997 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1663  Lonicera hispidula John Hunter Thomas 1987-5-26 24315 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC23785  Lonicera hispidula var. vacillans Mary Katherine Wicksten 1971-6-18 37 San Mateo Huddart Park, near lower parking lot. Comment
  POM46687  Lonicera hispidula var. vacillans A. D. E. Elmer 1903-06 4255 San Mateo Crystal Springs Lake. Comment
  JEPS90725  Lonicera involucrata Dean W. Taylor 1989-4-18 10220 San Mateo ridgetop between Ox Hill and Scarper Peak; Santa Cruz Mountains, Montara 7 1/2 quadrangle 472 Comment
  CAS-BOT-BC243963  Lonicera involucrata var. ledebourii D. E. Breedlove 1974-5-13 36219 San Mateo San Pedro Valley Park, Pacific 152 Comment
  CAS-BOT-BC243966  Lonicera involucrata var. ledebourii Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo Lowe part of Colma Canyon, San Bruno Mountain Comment
  CAS-BOT-BC243974  Lonicera involucrata var. ledebourii W. R. Dudley 1894-3-28 s.n. San Mateo Canyon near Lobitos Creek Comment
  POM222813  Lonicera involucrata var. ledebourii S. S. Berry 1909-3-13 s.n. San Mateo Bridge over San Francisquito Creek, near Adelanto Villa. 46 Comment
  CAS-BOT-BC198581  Lotus Peter Rubtzoff 1987-7-31 9821 San Mateo Best Products Company parking lot on east side of Gellert Blvd. north of Westborough Blvd. intersection, South San Francisco Comment
  CAS-BOT-BC389704  Lotus corniculatus L. Sigal 1969-7-1 s.n. San Mateo Belmont Comment
  JROH2044  Lotus corniculatus John Hunter Thomas 1977-6-16 18754 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old racing oval Comment
  RSA120409  Lotus formosissimus W. R. Dudley 1900-3-17 s.n. San Mateo Field above Seal Cove. Comment
  UC80843  Lotus micranthus C. F. Baker 1902-5-4 744 San Mateo Woodside Comment
  JEPS55888  Lotus scoparius Dr. L. M. Newlon 1921-7-30 248 San Mateo Salada Comment
  SEINET5557839  Lotus scoparius H. S. Gentry 1931-1 90 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  HSC23882  Lotus unifoliolatus var. unifoliolatus Mary Katherine Wicksten 1971-6-15 25 San Mateo Huddart Park Rd. bank near office Comment
  UC81109  Lotus wrangelianus C. F. Baker 1902-5-1 776 San Mateo Crystal Springs Lake Comment
  JROH3081  Ludwigia peploides subsp. peploides M. Whitley 1990-5-28 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; by the floats Comment
  SEINET5766860 Image available Lupinus affinis Dunn, Brown 1946-1 2542 San Mateo 3.7 miles northeast of La Honda on the southeast side of the Hwy; Sann Francisco Peninsula on Hwy from Woodside to la Honda Comment
  UC1129419  Lupinus affinis H. S. Yates 1935-5-8 5209 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. 579 Comment
  SEINET10903755  Lupinus albifrons Charles Piper Smith 1948-4-23 Smith 48146 San Mateo Glabrous keel, abnormal could mean hybridization to formosus or chamissouris Hwy 5, junction s.f. Co jail road Comment
  CAS-BOT-BC195815  Lupinus albifrons var. albifrons L. R. A. 1902-4-13 2340 San Mateo San Mateo Canon [Canyon] Comment
  CAS-BOT-BC195788  Lupinus albifrons var. albifrons Charles Piper Smith 1946-7-15 46373 San Mateo Belmont, Vanderlaan Summit Comment
  CAS-BOT-BC195801  Lupinus albifrons var. albifrons Charles Piper Smith 1944-6-15 44103 San Mateo Broadway, railroad right of way Comment
  RSA134045  Lupinus albifrons var. albifrons W. R. Dudley 1894-4-21 s.n. San Mateo 3 miles above town, ravine of San Mateo Creek. Comment
  CAS-BOT-BC196114  Lupinus albifrons var. collinus R. Hoffough 1929-5-18 611 San Mateo Crystal Springs Lake - Skyline Blvd near San Francisco Comment
  CAS-BOT-BC196125  Lupinus albifrons var. collinus Roxana S. Ferris 1921-4-7 2131 San Mateo San Bruno Mt. 213 Comment
  CAS-BOT-BC196130  Lupinus albifrons var. collinus C. F. B. 1902-3-22 341 San Mateo Crystal Springs Lake Comment
  SEINET5766825 Image available Lupinus albifrons var. collinus Lewis S. Rose 1931-1 s.n. San Mateo San Francisco Bay region Comment
  UC1300892  Lupinus albifrons var. collinus Helen K. Sharsmith 1963-2-16 5139 San Mateo lower open slopes San Bruno Mountain (above Daly City); San Francisco Bay Region, slopes of San Bruno Mountain 106 Comment
  CAS-BOT-BC8522  Lupinus apricus C. P. Smith 1908-3-30 1374 San Mateo Stanford University, field back of Cedro Cottage Comment
  CHSC903  Lupinus arboreus A. Koopman 1929-5-9 San Mateo Moss Beach. 9 Comment
  JEPS85208  Lupinus arboreus Roy E. Buck, James A. West 1985-4-29 523 San Mateo along n side of Whitehouse Canyon Rd. just w of minor gulch, e of first curve in from CA Hwy 1 ca 0.7 air km ne Whitehouse Canyon Rd. - CA 1 jct (2.0 air km e of Franklin Point, Cascade Ranch); e of Franklin Point, Cascade Ranch 60 Comment
  UCR122975  Lupinus arboreus George K. Helmkamp, E. A. Helmkamp 2001-6-2 6797 San Mateo Central Coast, Purissima Creek Rd., 0.9 mi from Calif. Hwy 1(junction about 4 mi south of Half Moon Bay) 91 Comment
  SEINET10488480  Lupinus arboreus Charles Piper Smith 1948-4-23 Smith 48140 San Mateo Hwy 1. 1.1 Miles n montara Comment
  SEINET11548753  Lupinus arboreus Univ. of Calif. Bot. Gard. 1974-1 list 17 - 43 San Mateo San Mateo Co.;;;; Comment
  POM276478  Lupinus arboreus var. arboreus Lyman Benson 1930-6-14 2150 San Mateo San Gregorio. 30 Comment
  CHSC57379  Lupinus bicolor Sandy Trimble 1987-4-13 11 San Mateo On e slope of Hwy 84, 6.7 mi w of Hwy 1, and 8.6 mi e of Hwy 35. 274 Comment
  JROH2115  Lupinus bicolor John H. Thomas 1975-4-19 17794 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2118  Lupinus bicolor John Hunter Thomas 1984-4-2 23273 3 H San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge fence Comment
  UC155172  Lupinus bicolor A. A. Heller 1911-4-12 10250 San Mateo near Stanford University; near Stanford University Comment
  UC155231  Lupinus bicolor A. A. Heller 1911-4-12 10251 San Mateo near Stanford University; near Stanford University Comment
  RSA31675  Lupinus bicolor A. A. Heller 1907-4-20 8451 San Mateo Near Lake Merced. Comment
  SEINET10484850  Lupinus bicolor Walter Knight, Irja Knight 1965-4-4 Knight 1008 San Mateo Bitter Cherry Ravine. In chaparral. Occasional plant - no colonies. Comment
  UC1057458  Lupinus bicolor G. Thomas Robbins 1937-4-11 103 San Mateo along roadside near Redwood City; near Redwood City Comment
  SEINET10484980  Lupinus bicolor var. umbellatus Walter Knight, Irja Knight 1965-3-28 Knight 975 San Mateo From flower garden adjacent to april brook. In grassy area. Comment
  CAS-BOT-BC215067  Lupinus chamissonis Walter & Irja Knight 1965-3-21 973 San Mateo Mouth of Colma Canyon Comment
  SEINET246721  Lupinus formosus Russell J. Molyneux 2003-7-2 San Mateo Smip Ranch, vicinity of 'Black Pearl' sculpture 398 Comment
  SEINET12154552  Lupinus formosus E. A. Purer 1933-1 5426 San Mateo nr Belmont Comment
  JROH2127  Lupinus nanus John H. Thomas 1967-4-28 12723 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2136  Lupinus nanus John Hunter Thomas 1983-4-7 21334 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2142  Lupinus nanus John Hunter Thomas 1991-4-25 24995 San Mateo Jasper Ridge Biological Preserve, Stanford University; Rattlesnake Rocks Comment
  UC1129636  Lupinus nanus W. W. Akey 1935-5-25 25 San Mateo near Bolsa Point; Santa Cruz quad 30 Comment
  UC1303093  Lupinus nanus James McMurphy 1911-4-24 San Mateo corner between San Francisquito and Los Trancos creeks near Stanford University; betw San Francisquito and Los Trancos creeks Comment
  UC201937  Lupinus nanus W. A. Setchell 1912-5-26 San Mateo Montara Comment
  CAS-BOT-BC164349  Lupinus nanus Peter Rubtzoff 1978-7-8 9225 San Mateo Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction. East Fork Colma Creek Canyon, W side of canyon Comment
  CAS-BOT-BC27393  Lupinus nanus var. apricus C. P. Smith 1908-3-30 1374 San Mateo Stanford University, field near Cedro Cottage Comment
  POM11071  Lupinus succulentus A. D. E. Elmer 1903-05 4827 San Mateo Portola. Comment
  RSA178676  Lupinus vallicola subsp. apricus L. R. Abrams 1926-4-19 s.n. San Mateo Junction of Los Trancos and San Francisquito Creek. Comment
  SEINET10969725  Lupinus vallicola subsp. apricus LeRoy R. Abrams 1914-4-20 Abrams 5128 San Mateo Type locality: the type was collected by baker, no. 610, 1902, At the same Station as the present specimens. The collector of the present specimens was With mr. Baker when the original specimens were collected. Grassy fields at The confluence of los troncos and san franciscquito creeks. Comment
  SEINET10491013  Lupinus vallicola subsp. vallicola Dengler 1960-4-12 DENGLER 21 San Mateo Corolla deep blue and white; in grassland below chaparral, on dry, rocky, South-facing slope. Jasper ridge, stanford biological reserve. 122 Comment
  POM226366  Lupinus variicolor Adele Lewis Grant 1917-5-6 938 San Mateo Pebble Beach near Pescadero. Comment
  POM276547  Lupinus variicolor Lyman D. Benson 1930-4-6 2041 San Mateo Moss Beach. West slope. 15 Comment
  RSA21949  Lupinus variicolor Alice Eastwood, John T. Howell 1938-6-26 6076 San Mateo Kings Mt. Comment
  SEINET10489108  Lupinus variicolor Smith 1948-4-23 Smith 48139 San Mateo Hwy 1, montara, government property. Comment
  SEINET12154794  Lupinus variicolor M. T. Doutt 1931-1 422 San Mateo Skyline Blvd, W of Hillbrae Comment
  SEINET13198377 Image available Lupinus versicolor A. G. Vestal 1937-6-15 s.n. San Mateo Comment
  JROH5726  Luzula comosa var. comosa John Rawlings 2015-3-15 1652 San Mateo Jasper Ridge Biological Preserve, Stanford University; small opening off trail 8 in oak woodland. 126 Comment
  CAS-BOT-BC441264  Luzula macrantha Alice Eastwood 1894-5-1 s.n. San Mateo South San Francisco Comment
  CAS-BOT-BC441362  Luzula subsessilis Philip Wheeler 1965-5-8 s.n. San Mateo San Bruno Mountain: Sierra Point Comment
  JROH3367  Lysimachia arvensis John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3375  Lysimachia minima John Hunter Thomas 1982-4-30 20883 A San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  SFV2436  Lythrum hyssopifolia J. Turner, F. M. Ball 1962-7-7 s. n. San Mateo Highway 1 about 10 miles north of Santa Cruz County line. Drainage ditch beside road. 30 Comment
  UCR122578  Lythrum hyssopifolia George K. Helmkamp, E. A. Helmkamp 2001-6-2 6794 San Mateo Central Coast, Purissima Creek Rd., 0.9 mi from Calif. Hwy 1(junction about 4 mi south of Half Moon Bay) 91 Comment
  JROH2947  Lythrum hyssopifolia John Hunter Thomas 1977-6-16 18751 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old racing oval Comment
  SD49787  Madia capitata J. H. Thomas 1959-8-16 8064 San Mateo 2.0 miles soputhwest of Pescadero. 60 Comment
  CAS-BOT-BC343914  Madia elegans A. D. E. Elmer 1903-5-1 4662 San Mateo Alpine School House Comment
  CAS-BOT-BC343898  Madia elegans Josephine D. Randall 1907-8-8 88 San Mateo Santa Cruz Peninsula. Near Stanford University Comment
  POM54251  Madia elegans subsp. vernalis A. D. E. Elmer 1903-05 4662 San Mateo Alpine School House. Comment
  CAS-BOT-BC344496  Madia exigua Lewis S. Rose 1956-5-28 56083 San Mateo Emerald Lake. Hills w. of Redwood City 182 Comment
  JROH1049  Madia exigua John Hunter Thomas 1977-6-16 18779 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1056  Madia exigua John Hunter Thomas 1981-5-25 20636 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC344493  Madia exigua Walter Knight; Irja Knight 1964-5-19 625 San Mateo San Bruno Mountain. North Power Line at Ridge Road Comment
  JROH1080  Madia gracilis John Hunter Thomas 1981-5-21 20645 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1084  Madia gracilis John Hunter Thomas 1985-5-7 23642 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC343324  Madia gracilis Elizabeth McClintock; Philip C. Wheeler 1967-5-14 s.n. San Mateo San Bruno Mountain. East side of mountain, above Harold Ave., Brisbane. Near fence separating Brisbane from Crocker Estate portion of mountain Comment
  CAS-BOT-BC343340  Madia gracilis James I. McMurphy 1909-5-25 s.n. San Mateo San Mateo Canyon Comment
  JROH1106  Madia sativa John Hunter Thomas 1981-7-24 20726 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC345135  Madia sativa Ernest C. Twisselmann 1957-8-25 4022 San Mateo Skyline Boulevard, about 5 miles south of Woodside 518 Comment
  POM191315  Madia sativa D. D. Keck 1932-8-11 1745 San Mateo Skyline Blvd., about 1 mile south of junction with Alpine Creek road, Santa Cruz Mountains, Santa Clara - San Mateo county line 640 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
  CAS-BOT-BC511332  Maianthemum dilatatum John H. Thomas 1961-5-7 9288 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JEPS27351  Maianthemum dilatatum Rimo Bacigalupi with L. R. Heckard and J. Roof 1961-4-24 7612 San Mateo just below rocky spur due n. of true summit San Bruno Mt. (directly below and n.w. of KQED radio power station) 342 Comment
  JROH4696  Maianthemum racemosum John H. Thomas 1979-4-8 19443 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC512099  Maianthemum racemosum subsp. amplexicaule Le Roy Abrams 1898-4-1 314 San Mateo Stanford University Comment
  CAS-BOT-BC512104  Maianthemum racemosum subsp. amplexicaule Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Romanzoffia ravine; San Bruno Mountain Comment
  CHSC57106  Maianthemum stellatum Steven Triano 1988-5-24 208 San Mateo Along s side of Old La Honda Road ca 0.3 mi e of its jct. With La Honda Road. 365 Comment
  JROH4705  Maianthemum stellatum John H. Thomas 1970-5-16 15629 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4714  Maianthemum stellatum John Hunter Thomas 1985-4-22 23545 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176415  Maianthemum stellatum John H. Thomas 1964-4-19 10326 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Area below dam. Comment
  CAS-BOT-BC514157  Maianthemum stellatum J. H. Thomas 1949-4-14 272 San Mateo King's Mountain Comment
  CAS-BOT-BC514159  Maianthemum stellatum W. R. Dudley 1894-3-24 s. n. San Mateo La Honda Creek Comment
  SEINET12049313  Maianthemum stellatum C. F. Baker 1903-1 1915 San Mateo San Andreas Lake Comment
  UC1041013  Malacothamnus davidsonii J. W. Congdon 1901-7-13 San Mateo Spring Valley Comment
  JROH2960  Malacothamnus fasciculatus D. E. Breedlove 1971-5-31 19352 San Mateo Jasper Ridge Biological Preserve, Stanford University. This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  SJSU2303  Malva arborea C. W. Sharsmith 1950-4-16 6632 San Mateo near Pescadero Point near Pescadero Comment
  SBBG53017  Malva arborea M. R. Benedict 1978-5-7 San Mateo Moss Beach near Princeton Comment
  SEINET7247993  Malva nicaeensis Richard A. Dodge 1957-1 31 San Mateo Canyon in San Bruno City Limits, just south of Sneath Lane, between Junipero Serra Boulevard, and State Highway 5. 183 Comment
  HSC7023  Marah fabacea P. A. Murphy 1965-4-16 10 San Mateo About 5 mi. from Half Moon Bay on the Higgin's Canyon Rd. Comment
  RSA92812  Marah oregana P. H. Raven 1950-4-16 1786 San Mateo Colma Canyon, San Bruno Mts. 122 Comment
  JROH617  Matricaria discoidea John H. Thomas 1971-4-21 15767 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC348194  Matricaria discoidea Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo San Bruno Mountain. Crocker Hills Comment
  CAS-BOT-BC422675  Meconella californica W. R. Dudley 1894-4-4 s.n. San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  JEPS51536  Meconella californica Ivar Tidestrom 1894-3-22 San Mateo Comment
  JROH2151  Medicago arabica John H. Thomas 1955-5-6 5010 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  JROH2168  Medicago polymorpha John H. Thomas 1974-4-19 17161 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC271159  Melica John H. Thomas 1965-4-29 10631 B San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC269475  Melica californica L. R. A. 1902-5-4 2407 San Mateo Woodside Comment
  POM87694  Melica californica Le Roy Abrams 1902-5-4 2407 San Mateo Woodside. Comment
  JROH5311  Melica subulata John Rawlings 2005-5-15 1005 San Mateo Jasper Ridge Biological Preserve, Stanford University; verge of Trail 2 from 100 to 250 yards west of the zoology cabin site 82 Comment
  JROH5312  Melica subulata John Rawlings 2005-5-15 1006 San Mateo Jasper Ridge Biological Preserve, Stanford University; verge of Trail 2 from 100 to 250 yards west of the zoology cabin site 82 Comment
  CAS-BOT-BC264252  Melica torreyana W. R. Dudley 1900-3-16 s.n. San Mateo By road up Kings Mt., Santa Cruz Mountain Peninsula Comment
  UCR177714  Mentha canadensis L. S. Rose 1936-9-13 36730 San Mateo Granada 2 Comment
  JROH2812  Mentha pulegium John Hunter Thomas 1979-9-9 19725 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of Searsville Lake Comment
  JROH2807  Mentha pulegium John H. Thomas 1964-11-29 10533 San Mateo Jasper Ridge Biological Preserve, Stanford University; W end of Searsville Dam Comment
  SEINET6627797 Image available Mentha spicata D. Aronson 1967-1 153 San Mateo East Palo Alto Comment
  CAS-BOT-BC166665  Mentha spicata Peter Rubtzoff 1978-9-16 9268 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  POM177324  Mercurialis annua L. R. Abrams, I. L. Wiggins, D. Abrams 1930-11-13 I 80 San Mateo Artichoke field 3 mi. S. of Rockaway Beach (Pedro Valley). Comment
  RSA34831  Mercurialis annua I. L. Wiggins 1945-9-22 11195 San Mateo Cultivated fields in Pedro Valley, inland from Pedro Point. Comment
  CAS-BOT-BC428900  Micranthes californica W. R. Dudley 1900-3-16 s.n. San Mateo Santa Cruz Peninsula. Bank by Redwood Stage road to Woodside Comment
  CAS-BOT-BC428907  Micranthes californica Paul Arnaud 1941-3-16 s.n. San Mateo Redwood City, near Hesler farm entrance - Hills. 45 Comment
  JROH1123  Micropus californicus var. californicus John H. Thomas 1967-5-10 12862 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1130  Micropus californicus var. californicus John Hunter Thomas 1986-5-6 24003 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5619  Micropus californicus var. californicus John Rawlings 2014-5-9 1227 San Mateo Jasper Ridge Biological Preserve, Stanford University; about 20 meters west of Road C and 20 meters south of Trail 18. 127 Comment
  HSC77531  Microseris bigelovii K. L. Chambers 1984-6-14 5141 San Mateo Pescadero Beach State Park, just S of mouth of Pescadero Creek, Hwy. 1 Comment
  CAS-BOT-BC348764  Microseris bigelovii E. L. Greene 1886-5-10 s.n. San Mateo Near Belmont Comment
  CAS-BOT-BC349025  Microseris douglasii subsp. douglasii A. D. E. Elmer 1903-5-1 4721 San Mateo Crystal Springs Lake Comment
  JEPS49068  Microseris douglasii subsp. douglasii Lewis S. Rose 1966-5-2 66037 A San Mateo w Redwood City; Emerald Lake 91 Comment
  CAS-BOT-BC349037  Microseris douglasii subsp. douglasii Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  CAS-BOT-BC349149  Microseris douglasii subsp. tenella Lewis S. Rose 1933-4-30 33129 San Mateo Redwood City Comment
  JEPS49069  Microseris douglasii subsp. tenella Lewis S. Rose 1966-5-2 66037 B San Mateo w Redwood City; Emerald Lake 91 Comment
  CAS-BOT-BC349140  Microseris douglasii subsp. tenella Kenton L. Chambers 1953-5-5 457 San Mateo Bayshore Hwy., 1.5 mi. n. of Dumbarton Bridge Road intersection Comment
  CAS-BOT-BC349147  Microseris douglasii subsp. tenella L. R. Abrams 1918-4-30 7212 San Mateo San Bruno Hills, Bay Shore [Bayshore] road Comment
  CAS-BOT-BC349189  Microseris elegans R. E. Frenkel 1964-5-22 504 San Mateo SFWD, 0.3 mile north of Sawyer Ridge Road, on Portola Ridge Road 268 Comment
  CAS-BOT-BC27842  Microseris heterocarpa Albert Kellogg s.n. San Mateo San Bruno Hills Comment
  JROH4074  Mimulus aurantiacus var. aurantiacus John H. Thomas 1975-6-5 17936 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack Comment
  UC1080543  Mimulus aurantiacus var. aurantiacus S. S. Tillett and I. Sternback 1956-6-25 539 San Mateo along road into Portola State Park 396 Comment
  SBBG33480  Mimulus guttatus A. D. E. Elmer -Aug-1903 4857 San Mateo Crystal Springs Lake Comment
  UCD122715  Mimulus microphyllus R. S. Woglum 1935-5-25 996 San Mateo King City-Coalinga, along State Highway 198. Comment
  JROH1698  Minuartia douglasii John H. Thomas 1961-4-4 9044 D San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of ridge 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
  CAS-BOT-BC220662  Monardella villosa Margaret A. Barry 1937-7-17 210 San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC214061  Monardella villosa W. R. Dudley 1901-10-25 s.n. San Mateo Near summit road to Spanishtown, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC214172  Monardella villosa John H. Thomas 1971-5-2 15862 San Mateo Near intersection of Canada and Edgewater Roads, about 4 miles SW of center of Rewood City 304 Comment
  UC1537603  Monardella villosa subsp. franciscana Gordon H. True Jr. 1936-6-14 513 San Mateo 1 mile from Skyline Blvd. on road to Salada Beach 182 Comment
  SEINET10829418  Monardella villosa subsp. franciscana A. Graff 1993-7-13 Graff 182 San Mateo Devil's Slide, in arroyos on inland side of Hwy. 1. Mostly past bloom. Coastal scrub. Comment
  JROH2833  Monardella villosa subsp. villosa John H. Thomas 1961-6-7 9529 San Mateo Jasper Ridge Biological Preserve, Stanford University; just above Searsville Lake Comment
  CAS-BOT-BC508578  Muilla maritima John H. Thomas 1949-4-1 216 San Mateo West of Redwood City Comment
  CAS-BOT-BC508583  Muilla maritima Helen M. Edwards 1917-4-12 s.n. San Mateo Near Crystal Springs Lake Comment
  CAS-BOT-BC508586  Muilla maritima Le Roy Abrams 1902-4-13 2330 San Mateo Crystal Springs Lake Comment
  UCR121564  Myosotis latifolia George K. Helmkamp, E. A. Helmkamp 1999-6-28 4961 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
  RSA18201  Myosotis latifolia C. B. Wolf 1929-5-25 3735 San Mateo 2 miles from Pescadero on Alpine Creek. Comment
  CAS-BOT-BC101775  Myrica californica Carl B. Wolf 1929-5-10 3709 San Mateo near Lake Lucerne 1 mi. no. of Pigeon Pt. 30 Comment
  CAS-BOT-BC166773  Myrica californica Peter Rubtzoff 1976-10-5 8907 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  JROH2700  Myriophyllum aquaticum John Hunter Thomas 1989-6-6 24758 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2704  Myriophyllum aquaticum John Hunter Thomas 1992-5-14 25223 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat ramp. Comment
  CAS-BOT-BC260228  Nassella pulchra W. R. Dudley 1894-5-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside to Crystal Springs Comment
  CAS-BOT-BC260231  Nassella pulchra Lewis S. Rose 1956-5-7 56071 San Mateo Skyline Boulevard W of San Mateo 182 Comment
  RSA106988  Nassella pulchra L. S. Rose 1956-5-7 56071 San Mateo Skyline Blvd west of San Mateo. 183 Comment
  JROH1568  Nasturtium officinale John H. Thomas 1955-5-6 4998 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3198  Navarretia heterodoxa John Pelton 1958-6-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC101994  Navarretia heterodoxa Alice Eastwood Jun 1897 San Mateo Crystal Springs Comment
  JROH3205  Navarretia heterodoxa (John H. Thomas) 1983-6-29 22715 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3208  Navarretia squarrosa Richard L. Garber 1971-7-13 66 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2736  Nemophila heterophylla John Hunter Thomas 1991-4-11 24978 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Rattlesnake Rocks Comment
  JROH2739  Nemophila menziesii var. menziesii John H. Thomas 1976-4-3 18079 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM289745  Nemophila menziesii var. menziesii Lyman Benson 1930-5-1 2067 San Mateo Stanford University. San Lorenzo Mt. Range. 91 Comment
  CAS-BOT-BC219482  Nemophila parviflora J. H. Thomas 1954-4-15 3906 San Mateo About 1 1/2 mile SW of Searsville Lake 228 Comment
  CDA986  Nemophila parviflora D. G. Kelch, B. G. Baldwin, Sue Bainbridge, Abigail Moore 2005-6-21 5 .368 San Mateo S.F. Water District land, near Spring Valley. NE corner Pilarcitos Lake. Comment
  JROH4171  Nicotiana acuminata var. multiflora John Rawlings 2012-8-20 1128 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek bed near Dennis Martin site marker 71 Comment
  CAS-BOT-BC140428  Oemleria cerasiformis Margaret A. Barry 1938-5-1 s.n. San Mateo On Coal Mine Ridge Comment
  UC311169  Oemleria cerasiformis A. D. E. Elmer Mar 1903 4579 San Mateo Woodside Comment
  CHSC57090  Oenothera elata subsp. hookeri Steven Triano 1988-5-24 209 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  SEINET199760  Orobanche californica subsp. californica Herbert L. Mason 1927-7-28 3983 San Mateo Pigeon Point Comment
  CAS-BOT-BC499692  Orobanche californica subsp. californica Dr. Henry T. Taabor 1953-8-30 s.n. San Mateo Pigeon Pt. Comment
  CAS-BOT-BC500166  Orobanche fasciculata David D. Keck 1932-6-18 1982 San Mateo Skyline Blvd., at Langley Hill (SW of Stanford Uniersity) 600 Comment
  SEINET12324060  Orthocarpus attenuatus E. McClintock, Knight, W.; Knight, I. 1982-1 4649 San Mateo San Bruno Mountain Comment
  RSA402011B  Orthocarpus erianthus Glenn A. Gorelick 1967-4-15 s.n. San Mateo San Bruno Mts. overlooking Daly City near San Francisco. Comment
  RSA6295  Orthocarpus floribundus D. D. Keck 1932-5-6 1490 San Mateo 4 miles west of Burlingame, on the Skyline Blvd. Comment
  RSA6294  Orthocarpus lithospermoides D. D. Keck 1932-5-6 1493 San Mateo East side of Crystal Springs Lake. 61 Comment
  POM15628  Orthocarpus pusillus Stewart H. Burnham 1894-4-21 s.n. San Mateo [No location information provided.] Comment
  UC21176  Osmorhiza berteroi J. Burtt Davy 1893-6-17 788 San Mateo Belmont Comment
  POM278934  Oxalis oregana Lyman Benson 1930-5-3 2108 San Mateo Above Woodside, La Honda Grade; Mt. range: Santa Cruz. 244 Comment
  RSA130349  Oxalis oregana Josephine Randall 1908-3-28 s.n. San Mateo Kings Mt. Comment
  UC1130246  Oxalis oregana N. K. Carlson 1935-7-3 114 San Mateo 3 mi s Bellvale; Santa Cruz quad 91 Comment
  RSA152077  Parapholis incurva John H. Thomas 1962-5-12 9859 San Mateo Franklin Point. 0 Comment
  CAS-BOT-BC265662  Paspalum distichum Ira L. Wiggins 1980-8-29 22265 San Mateo Bed of San Francisquito Creek, ca 50 m upstream from Pope Street bridge, Menlo Park Comment
  JROH5345  Paspalum distichum John H. Thomas 1964-11-5 10521 San Mateo Jasper Ridge Biological Preserve, Stanford University. East end of Searsville Dam Comment
  UC157045  Paspalum distichum C. F. Baker 1902-10-20 1836 San Mateo Searsville; about the lake shore Comment
  JROH1403  Pectocarya pusilla John H. Thomas 1981-4-27 20499 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC266632  Pedicularis Ned Cahill 1975-2-21 402 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles from Redwood City Comment
  JEPS40981  Pedicularis densiflora Lewis S. Rose 1964-3-23 64013 San Mateo w of Redwood City; Emerald Lake 121 Comment
  JROH4096  Pedicularis densiflora James Newman 1951-4-21 44 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake, above lake 91 Comment
  POM15581  Pedicularis densiflora A. D. E. Elmer 1903-05 4497 San Mateo Woodside. Comment
  RSA130979  Pedicularis densiflora Josephine Randall 1908-3-28 s.n. San Mateo Kings Mt Road. Santa Cruz Peninsula. Comment
  UC202754  Pedicularis densiflora A. D. E. Elmer 1903-5-1 4497 San Mateo Woodside Comment
  SEINET12270442  Pedicularis densiflora J. H. Thomas 1959-1 7663 San Mateo Jasper Ridge, about 5 mi SW of Palo Alto 152 Comment
  JEPS26849 Image available Pedicularis dudleyi Rimo Bacigalupi with J. H. Thomas and L. Heckard 1961-5-23 7712 San Mateo 1/3 mi n of its confulence with Pescadero Creek (e side of Peters Creek); Peters Creek 134 Comment
  CAS-BOT-BC207031  Pelargonium vitifolium John Thomas Howell 1932-12-21 10864 San Mateo Near Pescadero. Comment
  JEPS81003  Pelargonium vitifolium Edward Lee with H. L. Mason 1935-6-16 1530 San Mateo between Pigeon Point and San Gregorio Comment
  UC903064  Pelargonium vitifolium Ethel Crum 1934-4-29 1704 San Mateo s of Pescadero Comment
  JROH97  Pellaea andromedifolia John H. Thomas 1974-6-30 17465 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UC1063604  Pellaea andromedifolia R. C. Wilson 1935-8-2 244 San Mateo head of Harington Creek; Santa Cruz Quadrangle Comment
  CAS-BOT-BC389690  Pellaea andromedifolia 1980-3-15 s.n. San Mateo Crystal Springs Rd. Comment
  SJSU14193  Pentachaeta bellidiflora Toni Corelli 1989-4-2 201 San Mateo watershed triangle between Edgewood & Canada Rds 170 Comment
  JROH308  Perideridia kelloggii John H. Thomas 1970-7-5 15661 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH313  Perideridia kelloggii John Hunter Thomas 1983-7-20 22905 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3247  Persicaria amphibia John H. Thomas 1974-8-3 17496 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3271  Persicaria lapathifolia John Hunter Thomas 1979-9-9 19716 San Mateo Jasper Ridge Biological Preserve, Stanford University. Lake edge and delta. Comment
  UCD99467  Persicaria lapathifolia Verne Grant; Herbert L. Mason 1946-8-28 13089 San Mateo Santa Cruz - Daly City Road #5, south of San Francisco. Comment
  CAS-BOT-BC419156  Persicaria maculosa George Oberlander 1949-7-24 317 San Mateo San Francisco Watershed Reserve. San Andreas Lake Comment
  JROH3283  Persicaria punctata John H. Thomas 1976-10-16 18414 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along or near San Francisquito Creek from the low flow crossing to the vicinity of the old fireplace ruins downstream. Comment
  CAS-BOT-BC419388  Persicaria punctata W. R. Dudley 1897-10-10 s.n. San Mateo Toward Pilar Pt. Comment
  CAS-BOT-BC330311  Petasites frigidus var. palmatus L. R. Abrams 1904-3-7 s.n. San Mateo Santa Cruz Mountain Peninsula. Bear Gulch Comment
  RSA10999  Petasites palmatus C. B. Wolf 1928-3-14 1536 San Mateo La Honda Grade, Santa Cruz Mountains. Comment
  UC1211925  Phacelia californica John H. Weiler and B. Hirano 1961-3-22 6136 San Mateo steep bluff along Hwy 1 0.2 mi s Devil's Slide (n of Moss Beach) Comment
  UC672334  Phacelia divaricata Herbert L. Mason 1927-4-23 3687 San Mateo roadside between La Honda and Pescadero Creek Comment
  SD67316  Phacelia imbricata Darley F. Howe 1967-4-14 4352 San Mateo 7.0 miles from San Mateo on road to Half Moon Bay. 121 Comment
  CDA40397  Phacelia nemoralis E. L. Labadie Jr. 1961-6-6 s.n. San Mateo Burlingame. 0 Comment
  POM289350  Phacelia nemoralis subsp. nemoralis Lyman Benson 1930-5-26 2129 San Mateo Stanford University. Lake Searsville. 152 Comment
  CAS-BOT-BC154292  Phacelia ramosissima Class Collection 1940-1-1 s.n. San Mateo Dunes, Ano Nuevo Point Comment
  JROH2765  Phacelia rattanii D. E. Breedlove 1971-5-11 19332 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Pinon Road along fence Comment
  CAS-BOT-BC258930  Phalaris aquatica Elizabeth McClintock; Paul Reeberg 1988-5-23 s.n. San Mateo San Bruno Mountains. Along Harold Avenue, Brisbane 53 Comment
  CDA2281  Phalaris aquatica T. C. Fuller 1967-6-13 15947 San Mateo Road to San Mateo, 0.7 miles east of Skyline Blvd., east above Crystal Springs Lake. 0 Comment
  JROH5361  Phalaris aquatica John Hunter Thomas 1982-6-7 21029 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD88021  Phalaris aquatica Alison Blake 2003-4-16 8 San Mateo Woodside. Filoli Center. S edge of Lower Parking Lot, along fenceline between Parking Lot and Heritage Orchard. Comment
  UCD37957  Phalaris californica Beecher Crampton 1962-6-11 6487 San Mateo 5 miles W of Belmont, at junction of Ralston Avenue and Skyline Boulevard, at foot of western slope of Pulgas Ridge, along eastern side of lower Crystal Springs Reservoir. Comment
  UCD88576  Phalaris californica P. B. Kennedy 1928-5-2 s.n. San Mateo E of Daly City. Comment
  SJSU16000  Phalaris paradoxa John Rawlings 2006-6-26 860 San Mateo Edgewood Preserve's West Kiosk (intersection of Edgewood and Serpentine Loop trails) 184 Comment
  CAS-BOT-BC131760  Phoenix dactylifera Eric Walther 1920-10-1 s.n. San Mateo Near Court House, Redwood City Comment
  JROH2768  Pholistoma auritum var. auritum John Hunter Thomas 1981-5-5 20540 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC171184  Phoradendron serotinum subsp. tomentosum Lewis S. Rose 1930-12-14 s.n. San Mateo Woodside Comment
  RSA132361  Phoradendron villosum John H. Thomas 1960-3-1 8536 San Mateo Jasper Ridge, about 5 miles SW of Palo Alto. 152 Comment
  UCD138387  Phyllospadix torreyi R. V. Parker 1953-4-15 s.n. San Mateo Moss Beach. Comment
  CAS-BOT-BC142180  Physocarpus capitatus Margaret A. Barry 1937-5-15 112 San Mateo Woods on Coal Mine Ridge Comment
  CAS-BOT-BC142187  Physocarpus capitatus James McMurphy 1902-5-11 s.n. San Mateo San Francisquito Creek Comment
  CAS-BOT-BC202258  Pickeringia montana var. montana 1893-5-23 s.n. San Mateo Mountain above Woodside Comment
  JROH2203  Pickeringia montana var. montana John H. Thomas 1976-5-26 18147 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Shack Comment
  CAS-BOT-BC72843  Pinus radiata Walter Knight; Irja Knight 1964-9-30 s.n. San Mateo San Bruno Mountain, Cable Ravine Comment
  JROH118  Pinus radiata John H. Thomas 1977-4-4 18511 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC137315  Piperia elegans L. R. Abrams 1909-8-2 4274 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  UCSC008349  Piperia elegans subsp. elegans Randall Morgan 1991-7-27 1996 -P San Mateo Pacifica, Rockaway Beach Comment
  CAS-BOT-BC136602  Piperia michaelii Josephine D. Randall 1907-7-4 279 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC228141  Plagiobothrys chorisianus Alice Eastwood 1915-6-13 4717 San Mateo Granada Comment
  CAS-BOT-BC228118  Plagiobothrys chorisianus R. E. Frenkel 1964-4-2 412 San Mateo On Spring Valley Ridge Road, SFWD, at junction of Spring Valley Ridge and Whiting Ridge Roads 347 Comment
  CAS-BOT-BC228126  Plagiobothrys chorisianus Peter H. Raven 1950-4-16 1816 San Mateo Between Geneva Avenue (San Francisco County) and San Bruno Mountains 182 Comment
  POM190562  Plagiobothrys chorisianus D. D. Keck 1932-4-18 1435 San Mateo Burlingame, on the shore of San Francisco Bay. 2 Comment
  CAS-BOT-BC228159  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1896-4-4 s.n. San Mateo The Santa Cruz Mountain Peninsula. Near Crystal Springs Lake Comment
  CAS-BOT-BC228162  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1894-4-21 s.n. San Mateo The Santa Cruz Mountain Peninsula. Near Crystal Springs Reservoir Comment
  JROH1426  Plagiobothrys nothofulvus D. E. Breedlove 1971-5-31 19362 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  CHSC39820  Plantago Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  CDA6602  Plantago coronopus D. G. Kelch 2002-5-13 s.n. San Mateo Highway 92 at Quarry gate. Comment
  JROH3113  Plantago erecta John H. Thomas 1975-4-19 17796 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI58721  Plantago erecta Lewis S. Rose 1966-5-2 66033 San Mateo Emerald lake, W of Redwood City 91 Comment
  JROH5932  Plantago erecta L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Top of Jasper Ridge Comment
  CAS-BOT-BC164683  Plantago hirtella subsp. galeottiana Peter Rubtzoff 1977-11-24 9142 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon near upper rim. Comment
  RSA176597  Plantago hirtella var. galeottiana John H. Thomas 1964-6-19 10433 San Mateo Near Pigeon Pt. Lighthouse. Comment
  SEINET6205137  Plantago hookeriana var. californica L. S. Rose 1965-1 65056 San Mateo San Bruno Mtn, N end Comment
  POM61248  Plantago lanceolata Copeland 1903-6-5 3325 San Mateo Montara Point. Comment
  SBBG51590  Plantago lanceolata J. Doty 1969-3-26 597 San Mateo 100 yards E of the jct of State Hwy 35 and 92 Comment
  JROH3131  Plantago major James McMurphy 1906-8-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  RSA18371  Plantago maritima Carl B. Wolf 1927-6-29 537 San Mateo Along coast south of Pebble Beach near Pescadero. Comment
  JEPS24268  Plantago subnuda J. H. Thomas 1959-7-8 8016 San Mateo Pescadero Beach Comment
  RSA18360  Platanthera leucostachys Carl B. Wolf 1929-5-25 3728 San Mateo Pebble Beach, S of Pescadero. Comment
  CAS-BOT-BC92014  Platystemon californicus John H. Thomas 1974-5-7 17317 San Mateo San Bruno Mountain. Along Guadalupe Parkway opposite school. Comment
  CAS-BOT-BC92018  Platystemon californicus A. A. Heller 1907-4-20 8445 San Mateo Near Lake Merced. Comment
  SD38887  Plectritis ciliosa Cumming, Mc Callum 1933-5-10 3716 San Mateo Near Spring Valley lakes Comment
  JROH4246  Plectritis congesta subsp. brachystemon Toni Corelli 2012-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University 185 Comment
  CAS-BOT-BC260964  Pleuropogon californicus var. californicus A. D. E. Elmer 1903-6-1 4848 San Mateo Milbrae Comment
  JROH5396  Poa annua John H. Thomas 1965-2-22 10551 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1537245  Poa annua Gordon H. True Jr. 1937-3-31 619 San Mateo Salada Beach Rd 60 Comment
  CAS-BOT-BC254906  Poa bulbosa W. L. Plummer 1963-3-27 s.n. San Mateo Alvin Peters property, Skyline Boulevard, Redwood City Comment
  JEPS21703  Poa douglasii W. R. Dudley 1900-3-18 San Mateo San Pedro Beach Comment
  UC1537366  Poa douglasii Gordon H. True Jr. 1937-3-31 618 San Mateo Salada Beach 60 Comment
  JROH5409  Poa howellii John H. Thomas 1964-4-19 10329 San Mateo Jasper Ridge Biological Preserve, Stanford University. Area below dam in among redwoods near creek. Comment
  POM87690  Poa howellii Le Roy Abrams 1901-05 1560 San Mateo Searsville -Bear Gulch Comment
  SEINET10602237  Poa nevadensis Edwin B. Copel 1903-4-20 Copeland 1920 San Mateo San Andreas Lake, Ca. Tufts about hill tops. Comment
  CAS-BOT-BC247424  Poa pratensis W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of hill at Sneath's Ranch, near Millbrae Comment
  RSA785877  Poa trivialis Peter Rubtzoff 1977-6-7 9030 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC244244  Poa unilateralis A. D. E. Elmer 1900-4-1 2393 San Mateo Spanishtown Comment
  JEPS101813  Poa unilateralis Dean W. Taylor 2000-4-25 17440 San Mateo along dirt road 1 mi W of North Peak, Montara Mountain 411 Comment
  JROH2855  Pogogyne serpylloides John H. Thomas 1966-4-29 11588 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2858  Pogogyne serpylloides John H. Thomas 1973-6-10 16827 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2862  Pogogyne serpylloides John Hunter Thomas 1981-4-23 20493 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC413803  Polycarpon tetraphyllum Robert I. Gilbreath 1974-5-1 0062 San Mateo On hills near Hillsborough 152 Comment
  SEINET10904450  Polygonum amphibium var. emersum Mary Susan Taylor 1978-8-30 Taylor 1869 San Mateo Comment
  POM280341  Polygonum arenastrum Lyman Benson 1936-9-4 7990 San Mateo Menlo Park, San Francisco Bay. 30 Comment
  RSA141088  Polygonum aviculare John H. Thomas 1960-6-25 8784 a San Mateo Redwood City, in vacant lot near Main and Stambaugh Streets Comment
  CAS-BOT-BC413945  Polygonum aviculare subsp. aviculare E. M. Zeile 1921-7-31 s.n. San Mateo Salada Comment
  CAS-BOT-BC414107  Polygonum aviculare subsp. aviculare Elizabeth McClintock; Paul Reeberg 1989-8-19 s.n. San Mateo San Bruno Mountains. Reservoir Hill Comment
  CAS-BOT-BC414109  Polygonum aviculare subsp. aviculare George Oberlander 1949-7-24 316 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  CAS-BOT-BC414235  Polygonum aviculare subsp. depressum J. H. Thomas 1963-7-19 10180 B San Mateo Ano Nuevo Point Comment
  UC563966  Polygonum convolvulus Ira L. Wiggins 1935-8-24 8159 San Mateo roadside 2 mi e Half Moon Bay Comment
  RSA120432  Polygonum lapathifolium Roxana S. Ferris 1924-10-6 4094 San Mateo Searville Lake on Portola Hwy. Comment
  CAS-BOT-BC109239  Polygonum paronychia V. F. Hesse 1954-7-30 1343 San Mateo Near Pebble Beach. 15 Comment
  CAS-BOT-BC109242  Polygonum paronychia Louis F. Pitelka 1974-5-28 s.n. San Mateo Bolsa Point, about 1 mile north of Pigeon Point and about 39 miles south of San Francisco. Comment
  RSA3888  Polygonum paronychia I. L. Wiggins 1929-7-4 3795 San Mateo Pescadero Beach Comment
  JEPS50633  Polygonum persicaria W. L. Jepson 1923-10-18 10250 San Mateo hills w Colma (toward ocean) Comment
  CAS-BOT-BC72106  Polypodium scouleri Dustin Chivers 1963-9-22 s.n. San Mateo Chinese Cemetery Rd., 100 yards east of intersection of this road and Skyline Blvd., Colma Comment
  CAS-BOT-BC72110  Polypodium scouleri George Oberlander 1949-7-24 305 San Mateo Cypress Cayhill Range Comment
  CAS-BOT-BC233158  Polypogon interruptus Robert Robertson 1954-4-14 76 San Mateo By roadside NW of Palo Alto Yacht Club 3 Comment
  SEINET10602416  Polypogon interruptus Adolph D. E. Elmer Elmer 4694 San Mateo Pilarcitos Creek. Comment
  CAS-BOT-BC237343  Polypogon monspeliensis Ned Cahill 1974-6-21 339 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles W from Redwood City Comment
  CAS-BOT-BC237346  Polypogon monspeliensis George Oberlander 1949-7-24 312 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon Comment
  CAS-BOT-BC237354  Polypogon monspeliensis C. F. Leithold 1894-8-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Devil's Canyon Comment
  UC1132915  Polypogon monspeliensis G. E. Sindel 1935-5-25 306 San Mateo Mouth of Pescadero Creek; Santa Cruz Quad., mouth of Pescadero Creek Comment
  CAS-BOT-BC72152  Polystichum californicum Ynez Henderson 1920-5-1 s.n. San Mateo Las Trancos Creek Comment
  CAS-BOT-BC72219  Polystichum dudleyi W. R. Dudley 1902-1-1 s.n. San Mateo upper Gazos Creek Comment
  CAS-BOT-BC72227  Polystichum dudleyi Kate O. Sessions s.n. San Mateo unspecified Comment
  SBBG51403  Polystichum dudleyi J. Doty 1969-3-27 609 San Mateo N side of St Hwy 84, ca. 50' W of Bridge No 35-165, ca. 6 mi E of St Hwy 1 Comment
  CAS-BOT-BC76604  Polystichum munitum Ira L. Wiggins 1928-4-14 2921 San Mateo Alpine Creek Road Comment
  CAS-BOT-BC76608  Polystichum munitum J. H. Thomas 1949-3-29 198 San Mateo King's Mountain Comment
  CHSC39836  Polystichum munitum Maxey-Jones 1928-4-21 San Mateo La Honda Redwoods. Comment
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Jul 7 2010
  CAS-BOT-BC384614  Polystichum munitum M. K. Wicksten 1991-7-8 s.n. San Mateo Huddart PRK Comment
  RSA785881  Polystichum munitum Peter Rubtzoff 1976-10-5 8905 San Mateo eSaddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  JROH3843  Populus trichocarpa John Hunter Thomas 1983-7-7 22818 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB271  Potamogeton amplifolius McPherson, D. 1960-8-1 San Mateo Ventura Comment
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2
  JROH5512  Potamogeton foliosus subsp. foliosus W. R. Dudley 1893-7-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM259789  Potamogeton nodosus I. L. Wiggins, Roxana S. Ferris 1939-8-2 9292 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC454008  Potamogeton pectinatus Ira L. Wiggins 1935-6-29 8051 San Mateo Pescadero Creek, about 1 mile west of Pescadero Comment
  CAS-BOT-BC141936  Potentilla anserina subsp. pacifica J. H. Thomas 1949-6-4 590 San Mateo Along coast, 1.4 miles S. of road to Pescadero Comment
  CAS-BOT-BC141933  Potentilla anserina subsp. pacifica David D. Keck 1933-5-11 2291 San Mateo Half Moon Bay, ca. 2 miles north of town. Comment
  POM215734  Potentilla anserina var. grandis D. D. Keck 1933-5-11 2291 San Mateo Half Moon Bay sand dunes, about 2 miles north of town. Comment
  CAS-BOT-BC144833  Potentilla rivalis George Oberlander 1950-3-18 560 San Mateo Pilarcitos Canyon Comment
  JROH3378  Primula clevelandii var. patula John H. Thomas 1977-2-27 18472 San Mateo Jasper Ridge Biological Preserve, Stanford University. Westridge end of Jasper Ridge Comment
  JROH4670  Prosartes hookeri John H. Thomas 1967-4-28 12728 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4674  Prosartes hookeri John H. Thomas 1979-4-10 19448 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC516361  Prosartes hookeri Elizabeth McClintock 1965-3-28 s.n. San Mateo Devil's Arroyo, San Bruno Mountain Comment
  RSA18456  Prunella vulgaris var. lanceolata Carl B. Wolf 1927-6-29 551 San Mateo South of Pebble Beach near Pescadero. Comment
  RSA217975  Prunella vulgaris var. lanceolata Phillip Wheeler 1965-6-20 s.n. San Mateo Adjacent to Radio Road Comment
  RSA218028  Prunella vulgaris var. lanceolata Walter Knight, I. Knight 1963-8-5 s.n. San Mateo Colma Canyon Comment
  CAS-BOT-BC154497  Prunus ilicifolia A. D. E. Elmer 1903-7-1 4773 San Mateo Pilarcitos Stone Dam Comment
  CAS-BOT-BC389746  Prunus ilicifolia M. Danielson 1966-10-1 s.n. San Mateo On old road above and south of Crystal Springs Rd. Comment
  JROH3749  Prunus subcordata H. L. Mason 1921-3-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Zoo shack Comment
  POM139638  Prunus subcordata A. D. E. Elmer 1903-04 4533 San Mateo Portola. Comment
  SEINET11917542  Prunus subcordata W. R. Dudley 1904-4-7 17 San Mateo Los Fracos Creek, Santa Cruz Mts Comment
  CAS-BOT-BC156360  Prunus virginiana var. demissa Margaret A. Barry 1937-5-15 113 San Mateo Woods on Coal Mine Ridge Comment
  CAS-BOT-BC356474  Pseudognaphalium beneolens Helen D. Geis 1901-9-26 s.n. San Mateo Roadside to Spanishtown [Spanish Town] Comment
  CAS-BOT-BC356870  Pseudognaphalium californicum R. E. Frenkel 1963-12-7 335 San Mateo San Francisco Water District, Whiting Ridge Road, ca. 0.8 mile south-west of Spring Valley Road, at Fire Warden's Gate Comment
  JROH769  Pseudognaphalium californicum John Hunter Thomas 1983-7-20 22893 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD30773  Pseudognaphalium luteoalbum Edith A. Purer 1933-8-13 5427 San Mateo Belmont, along roadside Comment
  HSC23946  Pseudognaphalium luteoalbum Mary Katherine Wicksten 1971-6-16 13 San Mateo Huddart Park; dry bank by horse ring Comment
  JEPS33995  Pseudognaphalium ramosissimum James G. Daly 407 San Mateo Upper Mindego canyon Santa Cruz Mts., San Gregorio watershed, Upper Mindego canyo Comment
  JROH807  Pseudognaphalium ramosissimum Herb Dengler 1972-8-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; on trail along SF Creek 1000 feet below tiger lily site, where the trail rises to its locally highest elevation Comment
  UC31976  Pseudognaphalium stramineum F. P. McLean 1874-6-1 San Mateo Pescadero Comment
  UC917227  Pseudognaphalium stramineum J. D. Skoss 1948-7-25 44 San Mateo Montara Comment
  UCD135229  Pseudognaphalium stramineum Lewis S. Rose 1966-8-6 66079 San Mateo San Bruno Mountain, head of Colma Canyon. 121 Comment
  CAS-BOT-BC85906  Pseudotsuga menziesii A. D. E. Elmer 1903-4-1 4562 San Mateo King's Mountain Comment
  CAS-BOT-BC85915  Pseudotsuga menziesii Miss O. Boring 1897-8-31 s.n. San Mateo Santa Cruz Peninsula, King's Mt. Comment
  CAS-BOT-BC85910  Pseudotsuga menziesii W. R. Dudley 1897-4-10 s.n. San Mateo Santa Cruz Mountain Peninsula, above Alpine School House, Black Mt. Comment
  CAS-BOT-BC362027  Psilocarphus tenellus Le Roy Abrams 1902-5-20 2477 San Mateo Kings Mountain Road Comment
  JROH1182  Psilocarphus tenellus John H. Thomas 1971-4-21 15764 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC362020  Psilocarphus tenellus Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountain. South Power Line Ridge Comment
  CAS-BOT-BC362029  Psilocarphus tenellus Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Ridge Road west of power lines Comment
  UCD92954  Puccinellia maritima A. A. Beetle 1946-6-4 4278 San Mateo San Mateo City limits on San Mateo Bridge approach. On San Francisco Bay margin. Comment
  RSA181251  Pyracantha koidzumii John H. Thomas 1963-10-4 10268 San Mateo Along Bayshore Freeway about 1/2 mile SE of its intersection with HIllsdale Blvd. Comment
  CAS-BOT-BC105387  Quercus X morehus W. R. Dudley 1904-4-10 s.n. San Mateo Santa Cruz Mountain Peninsula, junction of Alpine and Great Round road, in a few yards E of junction of Corte Madera & Comment
  UCD47329  Quercus X subconvexa Lewis S. Rose 1964-9-5 64069 San Mateo (Q. durata Jepson X Q. garryana Dougl.). Emerald Lake, W. of Redwood City. 243 Comment
  UCD14953  Quercus agrifolia Stephen K. Langer 1991-3-16 s.n. San Mateo California, San Mateo Co.; San Bruno Mountains, Buckeye Canyon. Comment
  SEINET12031837  Quercus agrifolia F. G. Meyer 1984-1 20335 San Mateo Woodside, Filoli Gardens Comment
  JROH2458  Quercus agrifolia var. agrifolia John H. Thomas 1971-4-21 15769 San Mateo Jasper Ridge Biological Preserve, Stanford University; at bridge Comment
  JROH2461  Quercus agrifolia var. agrifolia John H. Thomas 1971-4-25 15790 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2462  Quercus agrifolia var. agrifolia John H. Thomas 1974-6-30 17461 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5809  Quercus berberidifolia John Rawlings 2016-7-27 1910 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 15, 15 yards north of Rd F 175 Comment
  CAS-BOT-BC62307  Quercus chrysolepis Stkinson 1902-11-30 s.n. San Mateo Santa Cruz Mountain Peninsula, King's Mt. Comment
  UCD45585  Quercus chrysolepis Roman Gankin; W. R. Hildreth 1966-5-17 s.n. San Mateo Elevation 1600 feet, ca. .4 mile northeast of Peak Mountain of greater Montara Mountain, San Mateo County, California. 487 Comment
  JROH2470  Quercus douglasii John H. Thomas 1955-5-6 5017 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  JROH2474  Quercus douglasii John Hunter Thomas 1984-10-22 23487 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC94285  Quercus durata W. R. Dudley 1894-3-24 s.n. San Mateo By farm road to O'Brien McDonough Ranch, near Portola Comment
  RSA176746  Quercus durata John H. Thomas 1963-5-12 10077 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC105389  Quercus kelloggii W. R. Dudley 1893-4-1 s.n. San Mateo Near Searsville Comment
  CAS-BOT-BC105398  Quercus kelloggii Ira L. Wiggins 1925-4-1 1664 San Mateo On Kings Mountain Road three fourths of a mile above Woodside in the old cut over redwood (S. sempervirens) belt. Comment
  CAS-BOT-BC105403  Quercus kelloggii J. H. Thomas 1955-3-21 4694 San Mateo New La Honda Road above Searsville and Skyline Blvd. 1.8 miles from Searsville. E slope of the Santa Cruz Mountains 274 Comment
  JROH2499  Quercus kelloggii K. Hoffough 1929-4-27 277 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2509  Quercus kelloggii John Hunter Thomas 1987-5-26 24323 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA152240  Quercus kelloggii I. L. Wiggins 1925-04 1664 San Mateo On Kings Mtn Rd 3/4 mile above Woodside. Comment
  UCD46676  Quercus kelloggii Ira L. Wiggins 1946-5-2 s.n. San Mateo La Honda road, above Searsville Reservoir, San Mateo County, California. 457 Comment
  UCSB1185  Quercus kelloggii Haller, John 1950-4-26 San Mateo Stanford University, near highway bridge over cree, at edge of golf course Comment
  CAS-BOT-BC62895  Quercus lobata John Thomas Howell 1926-10-23 2229 San Mateo Sand Hill Road west of Stanford University Comment
  HSC23995  Quercus lobata Mary Katherine Wicksten 1971-8-20 128 San Mateo Huddart Park, above Oak Area Comment
  SEINET12034641  Quercus lobata Unknown 1930-1 7321 San Mateo Jaspar Ridge Comment
  UCD47590  Quercus wislizeni John M. Tucker 1994-9-9 s.n. San Mateo Huddart Park, San Mateo County. Comment
  UC511335  Ranunculus californicus Lyman Benson 1931-3-15 2642 San Mateo Emerald Lake San Francisco Bay Watershed, Santa Cruz Mt. Range, Redwood C 152 Comment
  UC511338  Ranunculus californicus Lyman Benson 1931-3-15 2641 San Mateo Redwood City Santa Cruz Mt. Range, Emerald Lake 152 Comment
  CAS-BOT-BC378527  Ranunculus californicus var. californicus R. S. Woglum 1935-5-25 1156 San Mateo San Francisco area, Skyline Drive Comment
  CAS-BOT-BC378529  Ranunculus californicus var. californicus Elizabeth McClintock; Virginia Ryder 1964-2-16 s.n. San Mateo San Bruno Mountain, Guadalupe Road Comment
  SBBG51497  Ranunculus californicus var. californicus J. Doty 1969-3-26 600 San Mateo 100 yards E of the jct of Hwys 35 and 92, near summit of Coast Range Comment
  RSA268183  Ranunculus californicus var. cuneatus Ralph Hoffman 1919-4-19 s.n. San Mateo Steep slope above Cyler's Comment
  CAS-BOT-BC83422  Ranunculus lobbii E. A. McGregor 1908-3-9 s.n. San Mateo Coal Mine Ridge. Comment
  UCD96238  Ranunculus muricatus E. M. Johnston Jun and Jul 191 14 San Mateo Bay Region, Millbrae. Comment
  UC827645  Ranunculus orthorhynchus var. bloomeri Lewis S. Rose 1937-4-30 37241 San Mateo Brisbane 6 Comment
  JROH3501  Ranunculus uncinatus John Rawlings 2013-4-16 1144 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 1. 79 Comment
  JROH5873  Raphanus sativus Ann Lambrecht 2011-7-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; at Bear Creek crossing near Preserve boundary fence Comment
  JEPS85565  Rhamnus californica Craig Dremann 1986-8-30 325 San Mateo near San Gregorio (Stage road, 450 ft s of intersection of Seaside School road, on e side of school) Comment
  POM136515  Rhamnus californica A. D. E. Elmer 1903-07 4772 San Mateo Pilarcitos Stone Dam. Comment
  UC1071558  Rhamnus californica T. Tyrrell 1928-9-26 9 San Mateo 2 mi s San Gregorio; Santa Cruz Quad. 91 Comment
  UC202778  Rhamnus californica subsp. californica A. D. E. Elmer Jul 1901 4772 San Mateo Pilarcitos Stone Dam Comment
  CAS-BOT-BC55889  Rhamnus crocea R. Hoffough 1929-5-8 793 San Mateo Los Altos Hills Comment
  SEINET12210178  Rhamnus crocea J. I. McMurphy 1906-1 55 San Mateo Los Trancos Creek, Santa Cruz 183 Comment
  CAS-BOT-BC56669  Rhododendron occidentale W. R. Dudley 1908-9-21 s.n. San Mateo Pescadero Cr. (Iversons') Comment
  CAS-BOT-BC437974  Ribes Elizabeth McClintock 1965-3-28 s.n. San Mateo Devil's Arroyo; San Bruno Mountains Comment
  CAS-BOT-BC92490  Ribes aureum var. gracillimum A. D. E. Elmer 1903-5-1 4514 San Mateo Portola. Comment
  JROH2650  Ribes californicum var. californicum Carol Zabel 1989-2-20 2 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 12 near intersection with Trail 10. Comment
  OBI14065  Ribes divaricatum Lewis S. Rose 1965-3-16 65008 San Mateo Searsville Lake 122 Comment
  CAS-BOT-BC173082  Ribes divaricatum var. pubiflorum Lewis S. Rose 1965-3-16 65008 San Mateo Searsville Lake 121 Comment
  JROH2654  Ribes divaricatum var. pubiflorum John Hunter Thomas 1985-4-25 23555 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway. Comment
  RSA0025025  Ribes divaricatum var. pubiflorum L. R. Abrams 1904-4-10 s.n. San Mateo East of Crystal Springs Reservoir. Comment
  CAS-BOT-BC212811  Ribes menziesii David D. Keck 1932-3-6 1397 San Mateo Near La Honda, Santa Cruz Mts. 200 Comment
  CAS-BOT-BC212833  Ribes menziesii W. R. Dudley 1893-3-23 s.n. San Mateo Canada Cr. near Searsville Comment
  UC11613  Ribes menziesii J. Burtt Davy 1895-4-21 1059 San Mateo Pilarcitos Creek Comment
  RSA0021754  Ribes menziesii var. leptosmum A. D. E. Elmer 1903-04 4496 San Mateo Portola. Comment
  JROH2667  Ribes menziesii var. menziesii John H. Thomas 1974-6-27 17447 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC144630  Ribes sanguineum var. glutinosum Ira L. Wiggins 1929-3-23 3371 San Mateo Road to Mud Lake, near Stanford University Comment
  CAS-BOT-BC144637  Ribes sanguineum var. glutinosum W. R. Dudley 1894-3-23 s.n. San Mateo Canada Creek, near La Honda Comment
  CAS-BOT-BC144642  Ribes sanguineum var. glutinosum John Thomas Howell 1924-2-23 268 San Mateo King Mountain Comment
  JROH2675  Ribes sanguineum var. glutinosum John H. Thomas 1968-3-17 14174 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2678  Ribes sanguineum var. glutinosum John Hunter Thomas 1977-6-16 18792 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along raised causeway. Comment
  JROH2689  Ribes sanguineum var. glutinosum John Hunter Thomas 1992-4-7 25131 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-BC144639  Ribes sanguineum var. glutinosum Walter Knight 1964-9-14 828 San Mateo near summit Peak Mt. Comment
  RSA0019108  Ribes sanguineum var. glutinosum Paul C. Silva 1948-1-31 2620 San Mateo Skyline Blvd. just north of junction of Alpine Creek Road. 701 Comment
  CAS-BOT-BC168726  Ribes victoris Eric Walther 1919-8-1 s.n. San Mateo Woodside Comment
  CAS-BOT-BC363091  Rigiopappus leptocladus John H. Thomas 1961-5-14 9382 San Mateo Just north of dam on San Mateo Creek 121 Comment
  JROH1207  Rigiopappus leptocladus John Hunter Thomas 1990-5-2 24833 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  RSA8343  Rigiopappus leptocladus L. S. Rose 1933-4-30 33130 San Mateo Redwood City Comment
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Jul 24 2013
  CAS-BOT-BC363085  Rigiopappus leptocladus J. I. McMurphy 1900-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula. On road between Byrne's Store and Woodside Comment
  JEPS25747  Romanzoffia californica L. R. Heckard with R. Bacigalupi 1961-5-14 1232 San Mateo ca. 2 mi. s. Pilarcitos Reservoir (near Stone Dam Reservoir, along Pilarcitos Creek); Pilarcitos Creek 182 Comment
  SJSU6410  Romanzoffia californica C. W. Sharsmith 1973-3-24 7935 San Mateo Pillarcitos Canyon, Crystal Springs area San Francisco Watershed Lands Comment
  JROH1577  Rorippa curvisiliqua Ann Lambrecht, Toni Corelli 2004-9-15 14 San Mateo Jasper Ridge Biological Preserve, Stanford University. About 10 m E of Sand Hill Rd culvert 104 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-BC146355  Rosa J. Ed. McClellan; Bonnie McClellan 1968-6-1 s.n. San Mateo Butano Fire Trail between Cloverdale Rd. & west boundary of Butano State Park Comment
  CAS-BOT-BC147620  Rosa californica L. R. Abrams 1914-6-2 5114 San Mateo Los Trancos Creek Comment
  CAS-BOT-BC147627  Rosa californica Elizabeth McClintock; Paul Reeberg 1988-4-30 s.n. San Mateo Buckeye Canyon Comment
  CAS-BOT-BC147629  Rosa californica Walter Knight; Irja Knight 1967-6-6 2068 San Mateo Overlooking San Francisco Bay. Point San Bruno Comment
  JROH3756  Rosa californica Toni Corelli 2007-8-29 335 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 1 just before first redwood grove, above San Francisquito Creek 80 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-BC146696  Rosa gymnocarpa Margaret A. Barry 1937-5-15 85 San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC146701  Rosa gymnocarpa John H. Thomas 1961-5-7 9284 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH3759  Rosa gymnocarpa var. gymnocarpa John H. Thomas 1974-6-27 17448 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC5991  Rosa piscatoria Adolph Daniel Edward Elmer 1903-5-1 4923 San Mateo On the Pescadero Creek, Iverson's Place Comment
  CAS-BOT-BC156645  Rubus bifrons Phillip C. Wheeler 1965-7-7 s.n. San Mateo Crocker Avenue Comment
  CAS-BOT-BC152833  Rubus parviflorus Josephine D. Randall 1907-7-28 345 San Mateo Iverson's near Peter's Creek - Santa Cruz Peninsula Comment
  CAS-BOT-BC152836  Rubus parviflorus George Oberlander 1950-4-23 902 San Mateo Pilarcitos Canyon - San Francisco Watershed Reserve Comment
  CAS-BOT-BC152873  Rubus parviflorus Mrs. C. H. Thompson 1904-4-23 s.n. San Mateo Goat Ranch Road, near Corte Madera - Santa Cruz Mountain Peninsula 243 Comment
  UC311143  Rubus parviflorus A. D. E. Elmer June, 1903 4294 San Mateo Alpine School House Comment
  CAS-BOT-BC156768  Rubus spectabilis Walter Knight; Irja Knight 1964-4-25 1242 San Mateo Half way up Colma Canyon adjacent to creek. San Bruno Mountain Comment
  CDA26335  Rubus spectabilis R. J. Pummer 1992-6-8 San Mateo Farwell Nursery, Woodside. 0 Comment
  UC12986  Rubus spectabilis J. Burtt Davy 1895-4-21 1061 San Mateo Pilarcitos Creek Comment
  CAS-BOT-BC157068  Rubus ursinus J. H. Thomas 1949-4-17 296 San Mateo Along bank of San Francisquito Creek near University Ave. and Newell Rd., Palo Alto Comment
  CAS-BOT-BC157084  Rubus ursinus C. F. B. 1902-1-15 246 San Mateo West side King's Mountain Comment
  CAS-BOT-BC157108  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6055 San Mateo Near Pescadero Comment
  CAS-BOT-BC157110  Rubus ursinus John Thomas Howell 1938-6-4 13888 San Mateo Burlingame Comment
  UC136500  Rubus ursinus C. F. Baker 1902-1-15 246 San Mateo West side King's Mountain Comment
  RSA89757  Rubus ursinus Philip A. Munz 1954-8-4 19913 San Mateo Montara. Comment
  UCR12025  Rumex acetosella Coleta A. Lawler 1964-4-19 55 San Mateo 4.5 miles east of Half Moon Bay; Pilarcitos Rd, 0.5 mi NE jct Half Moon Bay Rd. 76 Comment
  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
  UCD101038  Rumex acetosella E. M. Johnston Jun and Jul 191 11 San Mateo Bay Region, Millbrae. Comment
  CAS-BOT-BC433356  Rumex crispus A. D. E. Elmer 1903-6-1 4266 San Mateo San Mateo Comment
  CAS-BOT-BC433368  Rumex crispus J. H. Thomas 1949-4-2 222 A San Mateo Palo Alto Yacht Club. Comment
  CAS-BOT-BC433542  Rumex fueginus George Oberlander 1950-7-15 1106 San Mateo San Francisco Watershed Reserve. About San Andreas Lake Comment
  CAS-BOT-BC433827  Rumex pulcher Margaret A. Barry 1938-6-22 s.n. San Mateo Slope on Coal Mine Ridge Comment
  SD88535  Rumex salicifolius Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of Half Moon Bay Comment
  UC1191281  Rumex salicifolius var. transitorius Herbert L. Mason and Verne Grant 1946-8-28 13080 San Mateo n of San Francisco county prison Comment
  POM348838  Rupertia physodes E. S. Spalding 1928-8-3 s.n. San Mateo Pulgas Tunnel east side. Comment
  UCD23435  Rupertia physodes Alan T. Whittemore 1976-5-31 135 San Mateo Alpine Road, near east end of Corte Madera Creek Trail. Mixed evergreen forest. Sequoia in sheltered spots. Acer, Quercus and Alnus in open areas and by stream. Flowers past, originally purple. Trailing on forest floor. Foliage with somewhat unpleasant odor. Comment
  JROH1723  Sagina apetala Toni Corelli 2009-3-25 349 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road F along road 152 Comment
  JROH5558  Sagina apetala John Rawlings 2013-4-19 1155 San Mateo Jasper Ridge Biological Preserve, Stanford University; verge south side of Trail 11 in a level section in chaparral 144 Comment
  UC1191410  Salicornia europaea S. Galen Smith 1951-6-28 1917 San Mateo ca 1 mi n San Mateo (along the Bayshore Highway 101) Comment
  JROH3853  Salix exigua var. hindsiana Toni Corelli 2003-2-6 254 San Mateo Jasper Ridge Biological Preserve, Stanford University; old beach area below Searsville Lab 103 Comment
  CAS-BOT-BC104051  Salix hindsiana Lewis S. Rose 1965-3-8 65003 San Mateo Searsville Lake 121 Comment
  UC75005  Salix laevigata unknown 1907-3-18 338 San Mateo hills near Palo Alto Palo Alto Comment
  CAS-BOT-BC107127  Salix lasiolepis Walter Knight; Irja Knight 1965-2-28 867 San Mateo Colma Canyon - San Bruno Mt. Comment
  CAS-BOT-BC107129  Salix lasiolepis A. D. E. Elmer 1903-3-1 4875 San Mateo Searsville Lake Comment
  JROH3866  Salix lasiolepis Carol Zabel 1989-2-20 3 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway bridge, Trail 13. Comment
  POM216549  Salix lasiolepis D. D. Keck 1932-1-24 1356 San Mateo Portola. 150 Comment
  POM223617  Salix lasiolepis S. S. Berry 1909-2-27 s.n. San Mateo Near Los Francos Creek. 46 Comment
  RSA788839  Salix lasiolepis Peter Rubtzoff 1976-3-14 8445 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  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
  SEINET12003303  Salix lasiolepis L. S. Rose 1938-1 38302 San Mateo San Francisco, Mountain Lake, Presidio 30 Comment
  CAS-BOT-BC108259  Salix lasiolepis var. bigelovii Walter Knight; Irja Knight 1964-3-16 s.n. San Mateo San Bruno Point - San Bruno Mountain Comment
  RSA788842  Salix lasiolepis var. bigelovii Peter Rubtzoff 1975-10-24 8433 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC124362  Salix lasiolepis var. lasiolepis David D. Keck 1932-1-29 1358 San Mateo Colma Creek, at Cypress Lawn Cemetery, northern San Mateo County Comment
  CAS-BOT-BC124483  Salix lasiolepis var. lasiolepis Javier Penalosa 1963-3-30 2762 San Mateo Guadalupe Valley Comment
  RSA119045  Salix lucida subsp. lasiandra L. S. Rose 1958-3-19 58013 San Mateo Princeton. 6 Comment
  SBBG33942  Salix lucida subsp. lasiandra L. S. Rose 1965-3-8 65002 San Mateo Searsville Lake 121 Comment
  CAS-BOT-BC126478  Salix sitchensis W. R. Dudley 1903-5-2 s.n. San Mateo Near Redwood Villa, La Honda Comment
  CAS-BOT-BC126483  Salix sitchensis L. R. A. 1902-3-1 2272 San Mateo Kings Mountain Comment
  CAS-BOT-BC126486  Salix sitchensis Walter Knight; Irja Knight 1965-2-28 866 San Mateo San Bruno Mt., in Colma Canyon Comment
  CAS-BOT-BC126492  Salix sitchensis Lewis S. Rose 1958-3-19 58010 male, 58011 female San Mateo Princeton 6 Comment
  CAS-BOT-BC126511  Salix sitchensis A. D. E. Elmer 1903-3-1 4874 San Mateo Portola Comment
  CAS-BOT-BC166961  Salix sitchensis Peter Rubtzoff 1976-3-14 8448 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  RSA788843  Salix sitchensis Peter Rubtzoff 1975-10-11 8426 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  UCD164608  Salix sitchensis Peter Rubtzoff 1975-10-11 8426 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC180795  Salsola soda John H. Thomas 1974-10-6 17615 San Mateo Palo Alto Yacht Harbor near airport. Altitude about sea level. Comment
  RSA262204  Salsola soda John H. Thomas 1974-10-6 17615 San Mateo San Mateo County. Palo Alto Yacht Harbor near airport. 0 Comment
Read comments
Apr 3 2009
  SBBG40540  Salsola soda W. Anderson 1968-8-16 San Mateo W end of Dumbarton Bridge Comment
  JROH2870  Salvia columbariae D. D. Davis 1903-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge north slope Comment
  SEINET946766  Salvia mexicana var. major Betsy Clebsch 1983-1 s.n. San Mateo Planted in garden on Big Swing Comment
  RSA434085  Salvia spathacea Glenn A. Gorelick 1967-4-4 s.n. San Mateo San Bruno Mts; overlooking Daly City near San Francisco. Comment
  CAS-BOT-BC246016  Sambucus nigra subsp. caerulea Paul Arnaud 1941-4-19 s.n. San Mateo Whipple Road, Redwood City Comment
  OBI4270  Sambucus nigra subsp. caerulea Lewis S. Rose 1966-8-15 66084 San Mateo Pulgas Water Temple 91 Comment
  SBBG32342  Sambucus nigra subsp. caerulea L. S. Rose 1966-8-15 San Mateo Pulgas Water Temple 91 Comment
  CAS-BOT-BC236455  Sambucus racemosa subsp. racemosa James B. Roof 1966-3-27 s.n. San Mateo Power Line Ridge, San Bruno Mountain Comment
  CAS-BOT-BC236464  Sambucus racemosa subsp. racemosa Adaline Christensen 1956-5-1 s.n. San Mateo Half Moon Bay Comment
  CAS-BOT-BC257332  Sambucus racemosa var. racemosa Peter Rubtzoff 1988-6-9 9925 San Mateo San Bruno Mountains, upper part of East Fork Colma Creek Canyon. Comment
  UC204057  Sambucus racemosa var. racemosa A. D. E. Elmer May, 1903 4663 San Mateo Butano Creek Comment
Read comments
Sep 6 2011
  SBBG32454  Sanicula arctopoides L. S. Rose 1965-3-25 65012 San Mateo N end San Bruno Mtns 121 Comment
  CAS-BOT-BC223325  Sanicula bipinnatifida H. A. Dutton 1900-2-11 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  JROH322  Sanicula bipinnatifida John H. Thomas 1967-5-12 12885 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET9699624 Image available Sanicula bipinnatifida Genevieve J. Kline 1996-1 332 San Mateo Stanford, Stanford University, foothills above Junipero Serra Blvd. Comment
  JROH327  Sanicula crassicaulis D. D. Davis 1903-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; north slope Searsville Ridge Comment
  JROH330  Sanicula crassicaulis John H. Thomas 1963-6-23 10167 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of ridge Comment
  POM319917  Sanicula crassicaulis Barbara Shervanick 1973-4-1 817 San Mateo San Bruno Mt. at first summit at end of Crocker Rd. Comment
  RSA191945  Sanicula crassicaulis R. F. Thorne, P. Everett 1963-6-9 32242 San Mateo On top of San Bruno Mountain. 335 Comment
  JEPS85232  Sanicula hoffmannii Roy E. Buck, James A. West, Roger Raiche 1984-7-29 510 San Mateo on nw-facing slope overlooking Cascade Ck. (e of ranch headquarters, ca 0.8 air km ne of CA Hwy 1, 3.3 air km ne of Point Ano Nuevo); Cascade Ranch 152 Comment
  RSA18449  Satureja douglasii Carl B. Wolf 1927-6-29 558 San Mateo South of Pebble Beach near Pescadero. Comment
  UC1601284  Satureja douglasii Lewis S. Rose 1933-6-9 33220 San Mateo 3 mi w San Bruno Comment
  RSA8352  Satureja douglasii L. S. Rose 1933-6-9 s.n. San Mateo 3 miles W of San Bruno. Comment
  JROH350  Scandix pecten-veneris John H. Thomas 1967-5-12 12872 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH349  Scandix pecten-veneris John H. Thomas 1964-4-19 10314 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville end of ridge Comment
  RSA176539  Schedonorus arundinaceus John H. Thomas 1963-8-4 10235 San Mateo About 2.5 miles inland from San Gregorio along the highway Comment
  RSA790257  Schedonorus arundinaceus Peter Rubtzoff 1976-6-13 8632 San Mateo San Bruno Mtn: 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction and NW of Fog Forest. Comment
  CAS-BOT-BC218936  Schinus molle John H. Thomas 1960-6-25 8788 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street 7 Comment
  CAS-BOT-BC111415  Schoenoplectus acutus var. occidentalis Rimo Bacigalupi 1922-5-25 s.n. San Mateo Emerald Lake, Redwood City Comment
  JROH4417  Schoenoplectus acutus var. occidentalis John Hunter Thomas 1988-6-2 24502 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near old bridge. Comment
  CAS-BOT-BC384630  Schoenoplectus americanus R. D. Hennessey 1964-4-26 71 San Mateo The area in which Pilarcitos Creek empties into the ocean Comment
  RSA366089  Schoenoplectus maritimus L. S. Rose 1935-8-13 35565 San Mateo Salada 3 Comment
  CDA19091  Scirpus maritimus J. Beall 2001-4-24 PDR 064435 San Mateo Belmont Creek at Old Country Rd., Belmont. 0 Comment
  UC841375  Scirpus microcarpus C. B. Carter 1928-11-11 San Mateo La Honda Canyon Comment
  JEPS73772  Scirpus pungens William S. Cooper 1925-5-28 4 San Mateo Salada; dunes Comment
  UC1102717  Scirpus pungens John H. Thomas 1960-6-25 8797 San Mateo along or near small creek running into Redwood Slough between El Camino Real and rr tracks, near Maple St. Redwood City Comment
  UC1057748  Scoliopus bigelovii F. A. Pitelka 1946-4-13 San Mateo Pilarcitos Lake Comment
  CAS-BOT-BC519008  Scoliopus bigelovii Harold Block 1926-1-24 s. n. San Mateo Kings Mountain Comment
  CAS-BOT-BC519017  Scoliopus bigelovii Alice Eastwood 1922-3-1 s. n. San Mateo Lake Pilarcitos Comment
  JEPS62100  Scoliopus bigelovii Elsa Kraeger 1926-2-21 San Mateo n. La Honda Comment
  SEINET12051468  Scoliopus bigelovii F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -223 San Mateo 0.5 mi from junction of Kings Mt Rd & CA 35, on former enroute to Woodside, near Skyline Trail head 580 Comment
  CAS-BOT-BC363223  Scolymus hispanicus T. C. Fuller 1965-7-8 13755 San Mateo D. McBryde prop., 140 Eleanor Dr., Woodside Comment
  JROH4122  Scrophularia californica James Newman 1951-4-21 16 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake, in slight ravine above lake Comment
  CDA41914  Scrophularia californica T. C. Fuller 1971-6-1 19883 San Mateo East shore of Crystal Springs Reservoir at junction of Highways 280 and 92. 0 Comment
  UC1012347  Scrophularia californica F. W. Pennell and D. D. Keck 1949-5-14 25416 San Mateo above Redwood City (Emerald Lake) 45 Comment
  CAS-BOT-BC240067  Secale cereale Walter Knight; Irja Knight 1965-4-24 1038 San Mateo San Bruno Mountain. Point San Bruno Comment
  UC789323  Sedum spathulifolium A. D. E. Elmer June 1903 4550 p.p. San Mateo toward San Mateo from Crystal Springs Lake; Toward San Mateo from Crystal Springs Lake Comment
  CAS-BOT-BC59061  Sedum spathulifolium G. B. Rossbach 1939-6-18 756 San Mateo Ledge near 755 on SE slope of North Peak, Montara Mts. 396 Comment
  CAS-BOT-BC59274  Sedum spathulifolium C. F. Baker 1902-5-27 3198 San Mateo Foothills near Stanford Cal Comment
  CAS-BOT-BC363399  Senecio aronicoides Fred Hemphill 1973-5-14 808 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC363390  Senecio aronicoides Catherine A. Toschi 1963-3-17 63 :62 San Mateo East slope San Bruno Mountains below radio station 213 Comment
  CAS-BOT-BC363402  Senecio aronicoides Kellogg No date on label s.n. San Mateo Crystal Springs Comment
  CAS-BOT-BC364635  Senecio vulgaris Fred Hemphill 1973-3-17 617 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH1224  Senecio vulgaris John H. Thomas 1968-3-17 14188 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5834  Senecio vulgaris Ann Lambrecht 2014-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. End of Trail 20 (Douglas Iris road) Comment
  SEINET5571340  Senecio vulgaris H. S. Gentry 1931-1 96 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC80296  Sequoia sempervirens W. R. Dudley 1895-10-19 s.n. San Mateo By Summit Spr. Road, King's Mt. Comment
  CAS-BOT-BC85780  Sequoia sempervirens W. R. Dudley 1897-1-1 s.n. San Mateo Santa Cruz Mountain Peninsula, Butano Creek Comment
  JEPS48276  Sequoia sempervirens Alice F. Crane 1917-11-27 San Mateo La Honda Comment
  POM216898  Sequoia sempervirens D. D. Keck 1932-2-14 1368 San Mateo La Honda Road, east slope of Coast Range above Searsville Lake 305 Comment
  UC118916  Sequoia sempervirens C. F. Baker 1902-1-15 319 San Mateo w side of King's Mountain Coast Range, King's Mountain 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
  SJSU10484  Setaria viridis S. H. Casey 1975-6-14 490 San Mateo by residence, SW Redwood City Comment
  JROH3838  Sherardia arvensis John Hunter Thomas 1992-4-23 25154 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Rattlesnake Rocks and along trail to redwoods Comment
  SBBG30046  Sidalcea diploscypha L. S. Rose 1948-5-16 San Mateo Emerald Lake, hills W of Redwood City 152 Comment
  UC583163  Sidalcea diploscypha Lewis S. Rose 1936-5-28 36300 San Mateo w Redwood City (Emerald Lake); , w of Redwood City 91 Comment
  SD39303  Sidalcea malviflora Marie Cummings 1933-5-8 3733 San Mateo Woodside Road Comment
  JROH2972  Sidalcea malviflora subsp. malviflora John Hunter Thomas 1981-4-21 20465 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM282902  Sidalcea malviflora subsp. malviflora Lyman Benson 1930-4-6 2044 San Mateo Moss Beach. West slope. 15 Comment
  POM282903  Sidalcea malviflora subsp. malviflora Lyman Benson 1931-3-3 2620 San Mateo Moss Beach. 15 Comment
  UC1327248  Sidalcea malviflora subsp. malviflora John T. Doyen 1966-3-28 29 San Mateo near Radio Towers at top (San Bruno Mountain); , near Radio Towers at top Comment
  JROH2971  Sidalcea malviflora subsp. malviflora John Hunter Thomas 1981-4-5 20271 San Mateo Jasper Ridge Biological Preserve, Stanford University; near lake Comment
  RSA130377  Sidalcea malviflora subsp. malviflora W. R. Dudley 1900-3-17 s.n. San Mateo By road, top of Montara Mts. Comment
  CAS-BOT-BC175277  Silene W. R. Dudley 1900-3-17 s.n. San Mateo By grade, south slope, near top Montara Mts. Comment
  JEPS85233  Silene californica Roy E. Buck, Randall A. Morgan 1984-6-17 509 San Mateo ca 6 km sw Redwood City (in triangle of Edgewood Rd., Canada Rd., and Interstate 280, San Francisco Watershed Reserve); San Francisco Watershed Reserve, sw of Redwood City 152 Comment
  POM151335  Silene californica C. F. Baker 1903-6-30 33522 San Mateo Crystal Springs Comment
  UC311135  Silene californica A. D. E. Elmer June, 1903 4446 San Mateo Crystal Springs Lake Comment
  UC8421  Silene californica J. Burtt Davy Jun 21 1893-Jun 23 1893 1158 San Mateo Pilarcitos Lake and Canyon Comment
  UCR121568  Silene gallica George K. Helmkamp, E. A. Helmkamp 1999-6-28 4994 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  CAS-BOT-BC386848  Silene gallica Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC386855  Silene gallica John H. Thomas 1963-5-20 10132 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC389893  Silene scouleri subsp. scouleri John H. Thomas 1961-5-7 9289 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC389901  Silene scouleri subsp. scouleri Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Above the quarry Comment
  CAS-BOT-BC389896  Silene verecunda Dean Wm. Taylor 1988-4-8 9505 San Mateo Santa Cruz Mountains. San Bruno Mountain, summit of mountain, near the parking lot at the eastern extent of public road access Comment
  CAS-BOT-BC74990  Sinapis arvensis Fred Hemphill 1973-5-6 767 San Mateo San Carlos. North of Malabar Road and Melendy Drive. 207 Comment
  CHSC39827  Sisyrinchium bellum Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  JROH4444  Sisyrinchium bellum John Hunter Thomas 1981-4-23 20488 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA366982  Sisyrinchium bellum Glenn A. Gorelick 1967-4-28 s.n. San Mateo San Mateo County: San Bruno Mts, overlooking Daly City ner San Francisco Comment
  UCD138851  Sisyrinchium bellum R. S. Woglum 1935-5-24 1154 San Mateo San Francisco area, Skyline Drive south to Big Basin. Comment
  SEINET3154296  Smilacina sessilifolia L. S. Rose 1933-4-9 33070 San Mateo Belmont Comment
  SEINET3888374  Smilacina sessilifolia Lewis S. Rose 1948-3-31 48035 San Mateo Skyline Blvd., W. of Tanforan.; 0 91 Comment
  RSA784604  Solanum nodiflorum Peter Rubtzoff 1974-12-17 7942 San Mateo San Bruno Mountains. 'Saddle' area on N side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  SJSU15425  Solanum physalifolium var. nitidibaccatum Toni Corelli 2011-8-31 719 San Mateo Half Moon Bay east of of Hwy. 1 and south of Higgins Canyon Road 30 Comment
  CAS-BOT-BC154180  Solanum umbelliferum A. D. Randall 1907-4-27 406 San Mateo King's Mt. Road Comment
  UCD166154  Solanum umbelliferum Jack Major; M. Forde and S. Bamberg 1962-4-3 738 San Mateo San Mateo County :On ridge above Scott Creek. (Exact location unknown. Coordinates estimated by label maker). Comment
  JROH4183  Solanum umbelliferum Joseph J. Schweitzer 1951-4-21 16 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Road cut along road up from the lake 121 Comment
  POM57020  Solidago californica C. F. Baker 1901-10-20 58 San Mateo Summit of Coast Range Comment
  RSA97497  Solidago canadensis subsp. elongata L. S. Rose 1954-8-29 54113 San Mateo Trinitas. 30 Comment
  LA203952  Solidago elongata Lewis B. Rose; 1931-9-19 San Mateo Kings Mt Comment
  UC473553  Solidago elongata Lewis B. Rose 1931-9-9 San Mateo Kings Mt. Comment
  CAS-BOT-BC365748  Solidago spathulata John H. Thomas 1961-5-12 9331 San Mateo San Bruno Mountain in northern part of county 396 Comment
  LA203968  Solidago velutina subsp. californica U. S. Grant; 1926-9-6 IV San Mateo Kuiqs Mountain 609 Comment
  CAS-BOT-BC365925  Soliva sessilis W. R. Dudley 1895-6-6 s.n. San Mateo Santa Cruz Peninsula. Near Pescadero Creek Comment
  RSA195396  Soliva sessilis John H. Thomas 1954-6-11 4283 San Mateo About 0.25 miles north of Pigeon Point Light House along low coastal bluffs. Comment
  CAS-BOT-BC353415  Soliva sessilis Peter Rubtzoff 1977-4-14 8940 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction. East Fork Colma Creek canyon area, San Bruno Mountains. Comment
  CAS-BOT-BC374498  Sonchus asper J. H. Thomas 1949-4-14 286 San Mateo Kings Mountain Comment
  CAS-BOT-BC374489  Sonchus asper Margaret A. Barry 1937-7-17 216 San Mateo Coal Mine Ridge Comment
  JROH1255  Sonchus asper subsp. asper John H. Thomas 1967-5-31 12927 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1258  Sonchus asper subsp. asper John Hunter Thomas 1981-5-8 20555 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC374702  Sonchus oleraceus W. R. Dudley 1895-2-23 s.n. San Mateo Santa Cruz Peninsula. San Francisquito Creek beyond Hopkins place Comment
  JROH1262  Sonchus oleraceus John H. Thomas 1974-4-6 17092 San Mateo Jasper Ridge Biological Preserve, Stanford University; west side of dam Comment
  UC1252099  Sorghum bicolor J. H. Thomas 1959-11-19 8513 San Mateo near Bayshore & University Ave. East Palo Alto Comment
  CAS-BOT-BC236583  Sorghum halepense Phillip C. Wheeler 1965-6-19 s.n. San Mateo Brisbane Lagoon, San Bruno Mountain Comment
  JROH5949  Sparaxis tricolor Trevor Hebert, John Rawlings 2017-4-6 2015 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the Sand Hill Rd. fence-line northeast of the intersection of Road L and Road H 124 Comment
  UC564209  Sparganium erectum subsp. stoloniferum Ira L. Wiggins 1935-8-24 8160 San Mateo about 0.5 mi s Moss Beach Comment
Read comments
Mar 12 2009
  JEPS13123  Sparganium eurycarpum var. eurycarpum V. F. Hesse 1955-10-10 1720 San Mateo 4 mi from Pescadero (pond near Butano road) 60 Comment
  JROH5524  Sparganium eurycarpum var. eurycarpum John Hunter Thomas 1979-5-22 19574 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC390009  Spergula arvensis John H. Thomas 1961-5-7 9247 San Mateo Colma. Field near intersection of El Camino Real and F Street 45 Comment
  CAS-BOT-BC390007  Spergula arvensis Javier Penalosa 1963-2-23 2643 San Mateo San Bruno Mtn. Ravine south of Crocker Ave. 213 Comment
  CAS-BOT-BC390208  Spergularia bocconi Alice Eastwood 1937-7-25 18888 San Mateo Pebble Beach, Pescadero Comment
  SEINET1877518 Image available Spergularia bocconi Tom Hensel 1973-7-10 278 -A San Mateo Pigeon Point lighthouse, 8.5 mi N of San Mateo-Santa Cruz Co. line. Comment
  UCD169488  Spergularia macrotheca Dr. E. B. Copeland 1903-6-5 3317 San Mateo Montara Point. Comment
  CAS-BOT-BC390453  Spergularia macrotheca var. macrotheca J. H. Thomas 1954-5-28 4245 San Mateo Guadalupe Valley, about 2 miles south of San Francisco - San Mateo County line 30 Comment
  CAS-BOT-BC390456  Spergularia macrotheca var. macrotheca John H. Thomas 1963-5-20 10103 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC390475  Spergularia macrotheca var. macrotheca G. B. Rossbach; R. P. Rossbach 1937-11-25 608 San Mateo 3 mi. south of Half Moon Bay Comment
  CAS-BOT-BC166942  Spergularia rubra Peter Rubtzoff 1978-7-8 9234 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH1773  Spergularia rubra John Hunter Thomas 1992-5-26 25352 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing of San Francisquito Creek Comment
  RSA131516  Stachys L. R. Abrams 1909-4-27 s.n. San Mateo Near Pulpit Rock. Comment
  UCD164462  Stachys ajugoides Peter Rubtzoff 1977-6-21 9067 San Mateo San Bruno Mountain. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon near upper rim. Comment
  JROH2899  Stachys bullata John H. Thomas 1971-5-30 15977 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2905  Stachys bullata John Hunter Thomas 1980-11-27 20177 San Mateo Jasper Ridge Biological Preserve, Stanford University; along causeway Comment
  JROH2910  Stachys bullata John Hunter Thomas 1987-5-19 24294 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1537555  Stachys bullata Gordon H. True Jr. 1936-6-14 503 San Mateo canyon s Saledo Beach (near coast) 152 Comment
  UC25935  Stachys bullata J. Burtt Davy Jun 21 1893-Jun 23 1893 1141 San Mateo Pilarcitos Lake and Canyon Comment
  UCD125820  Stachys bullata G. K. Helmkamp; E. A. Helmkamp 2001-6-2 6771 San Mateo Central CA coast: Purissima Crk Road, E of Half Moon Bay at Purissima Crk, 3.2 miles E of CA-1. 243 Comment
  SJSU15310  Stachys bullata Vince Ortisi 1975-9-27 3 San Mateo Saunders Shingle Mill (historical marker) off Tunitus Creek road. 457 Comment
  OBI13463  Stachys pycnantha Lewis S. Rose 1965-8-27 65093 San Mateo Emerald Lake, W of Redwood City 183 Comment
  UC1206470  Stachys pycnantha Le Roy Abrams 1902-9-21 2986 San Mateo Crystal Springs. Comment
  UCR279847  Stachys rigida subsp. quercetorum Peter Rubtzoff 1977-6-21 9063 San Mateo San Francisco Bay Region, San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  CAS-BOT-BC5590  Stachys rigida var. quercetorum A. A. Heller 1907-5-28 8577 San Mateo Above Crystal Springs on the Half Moon Bay road 137 Comment
  CAS-BOT-BC374794  Stebbinsoseris heterocarpa K. L. Chambers 1952-5-24 418 San Mateo 1.2 mi. towards Woodside from Skyline junction of Woodside-La Honda road, (1.2 mi. e. of Skyline Blvd.). [Locality info from collection label and voucher label combined.] Comment
  CAS-BOT-BC394057  Stellaria media John H. Thomas 1964-4-30 10358 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  JROH1781  Stellaria media John H. Thomas 1975-4-19 17795 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA478185  Stellaria media Glenn A. Gorelick 1967-4-15 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  CAS-BOT-BC394059  Stellaria media Josephine D. Randall 1908-2-16 s.n. San Mateo Corte de Madera Canon near Alpine Road; Santa Cruz Peninsula Comment
  CAS-BOT-BC398984  Stellaria nitens John H. Thomas 1971-5-2 15832 San Mateo Serpentine fields bordered by chaparral, near intersection of Canda and Edgewater roads, about 4 milesSW of center of Redwood City. 304 Comment
  UC1536756  Stephanomeria elata G. H. True Jr. 1937-7-31 830 San Mateo near Skyline Blvd. (Alpine Road) 182 Comment
  JROH1274  Stephanomeria virgata John H. Thomas 1978-9-24 19337 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC375911  Stephanomeria virgata Le Roy Abrams 1902-9-28 3002 San Mateo New Grade Road - near Portola Comment
  RSA18514  Stephanomeria virgata C. B. Wolf 1927-7-14 606 San Mateo Summit of Kings Mountain Rd. Comment
  JROH5320  Stipa lepida Duncan M. Porter 1960-4-22 649 D San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of N-facing slope above Webb Ranch Comment
  JROH5324  Stipa lepida John Hunter Thomas 1981-5-25 20618 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5333  Stipa pulchra John H. Thomas 1963-3-20 10023 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI22283  Stipa pulchra Lewis S. Rose 1963-4-27 63000 San Mateo Skyline Blvd, W of San Mateo 91 Comment
  POM176887  Streptanthus albidus R. Patterson 1895-4-20 s.n. San Mateo San Juan Bautista(?) Hills trail to San Jose Comment
Read comments
Jun 18 2018
  POM259788  Stuckenia pectinata I. L. Wiggins, Roxana S. Ferris 1939-8-2 9293 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC423014  Stylomecon heterophylla Walter Knight; Irja Knight 1965-4-25 1072 San Mateo San Bruno Mountain. Owl's Canyon Comment
  RSA120029  Symphoricarpos albus var. laevigatus G. H. Mallory 1919-8-20 s.n. San Mateo Near La Honda. Comment
  RSA246190  Symphoricarpos albus var. laevigatus E. K. Balls 1965-9-18 12170 San Mateo 1 mile W from Skywood along Hwy 81 from Woodside to junction with Hwy 35. Comment
  CAS-BOT-BC237068  Symphoricarpos mollis Fred Hemphill 1973-4-15 672 San Mateo Area north of Malabar Road and Melendy Drive, San Carlos 207 Comment
  SEINET5579326  Symphoricarpos mollis H. S. Gentry 1931-1 78 San Mateo 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC99061  Symphyotrichum chilense Walter Knight; Irja Knight; Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain - Lower part of Colma Canyon Comment
  SBBG32397  Symphyotrichum chilense L. S. Rose 1966-8-15 66083 San Mateo Pillar Pt 1 Comment
  UC1192068  Symphyotrichum chilense Malcolm A. Nobs and S. Galen Smith 1949-8-25 1571 San Mateo s of Rockaway Beach Comment
  CAS-BOT-BC99090  Symphyotrichum chilense W. R. Dudley 1905-9-24 s.n. San Mateo Black Mountain - Santa Cruz Peninsula Comment
  CAS-BOT-BC99095  Symphyotrichum chilense W. R. Dudley 1897-10-10 s.n. San Mateo Near Pilar Point Comment
  UC1927817  Symphyotrichum subspicatum David Keil 1988-11-19 21201 San Mateo Highway 1, south of Half Moon Bay Comment
  CAS-BOT-BC376917  Taraxacum officinale J. H. Thomas 1964-4-30 10337 San Mateo Near intersection of El Camino Real and F St., Colma Comment
  CAS-BOT-BC353472  Taraxacum officinale Peter Rubtzoff 1977-4-14 8943 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction. East Fork Colma Creek canyon area at the NW corner of Fog Forest, San Bruno Mountains. Comment
  UCSB18577  Taraxacum officinale Hutchinson, Sandra 1964-3-22 San Mateo Backyard, 908 Patricia Ave., San Mateo Comment
  CAS-BOT-BC447481  Tellima grandiflora John H. Thomas 1974-5-9 17334 San Mateo San Pedro Valley. Northern part of county, inland from Pacifica. 152 Comment
  SEINET7076118  Tellima grandiflora A. G. Vestal 1955-5-31 s.n. San Mateo La Honda Road (Route 86) at Redwood Terrace. (NAD 27; 37.3184? deg. North Latitude, 122.2959? deg. West Longitude, UTM Zone 10, 562392mE, 4130218mN). [GPS Coordinate: WGS84/NAD83]. Comment
  CAS-BOT-BC438270  Tetragonia tetragonoides Lewis S. Rose 1930-12-21 s.n. San Mateo Moss Beach 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-BC399843  Thalictrum polycarpum W. R. Dudley 1906-5-19 s.n. San Mateo Santa Cruz Mountain Peninsula. Whipple Road - West of Redwood City Comment
  CAS-BOT-BC399846  Thalictrum polycarpum W. R. Dudley 1893-5-27 s.n. San Mateo Santa Cruz Peninsula. Between King's Mountain and El Corte Madera Creek Comment
  CAS-BOT-BC66660  Thysanocarpus curvipes John H. Thomas 1968-4-13 14290 A San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JROH1613  Thysanocarpus curvipes John Hunter Thomas 1987-4-7 24171 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Dam Comment
  CAS-BOT-BC66682  Thysanocarpus curvipes George Oberlander 1949-4-22 688 San Mateo San Francisco Watershed Reserve. On Northern Cahill Ridge. Comment
  JROH1593  Thysanocarpus curvipes subsp. curvipes John Hunter Thomas 1981-4-7 20299 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  SD27906  Tiarella trifoliata var. unifoliata L. A. Waitzinger 1927-8-14 San Mateo Islam Camp, near La Honda, Santa Cruz Mts. Comment
  JROH389  Torilis nodosa John Hunter Thomas 1983-4-28 21784 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM181976  Torreya californica Anonymous s.n. San Mateo Santa Cruz Mountains Comment
  JEPS121588  Toxicodendron diversilobum Adam C. Schneider with C. Matt Guilliams 2013-4-7 116 San Mateo Crystal Springs Reservoir Comment
  JROH4757  Toxicoscordion fremontii Richard L. Garber 1971-5-18 25 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4760  Toxicoscordion fremontii John Hunter Thomas 1980-4-10 19871 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4295  Tribulus terrestris Toni Corelli 2005-9-14 305 b San Mateo Jasper Ridge Biological Preserve, Stanford University; along road B just west of entrance to Dennis Martin marker site 168 Comment
  CHSC1405  Trientalis latifolia J. Baynes 1929-5-20 San Mateo Near Moss Beach. Comment
  JROH3389  Trientalis latifolia John H. Thomas 1961-5-5 9215 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below Searsville Dam 76 Comment
  JROH5897  Trientalis latifolia M. Ray 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail by San Francisquito Creek, near Redwoods Comment
  POM287405  Trientalis latifolia Lyman Benson 1928-4-21 s.n. San Mateo Stanford University, Mt. Range: Santa Cruz; River: San Francisquito Creek. 91 Comment
  RSA14358  Trientalis latifolia Elmer I. Applegate 1895-4-6 328 a San Mateo Shady arroya in hills above Stanford University Comment
  JROH2226  Trifolium albopurpureum John H. Thomas 1978-5-16 s.n. 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
  POM126281  Trifolium amoenum R. L. Pendleton, A. A. Heller 1907-4-20 621 San Mateo Colma Comment
  UC903223  Trifolium barbigerum Ethel Crum 1934-4-29 1698 San Mateo s Pescadero (near ocean) Comment
  JROH2237  Trifolium barbigerum John H. Thomas 1958-5-10 7149 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge Comment
  UC165524  Trifolium barbigerum J. Burtt Davy 1895-1 1015 San Mateo Pilacitos Comment
  SEINET7076095  Trifolium barbigerum var. andrewsii 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
  HSC15206  Trifolium bifidum L. S. Rose 1966-5-2 66035 San Mateo Emerald Lake, W of Redwood City 91 Comment
  SJSU7992  Trifolium bifidum var. bifidum M. S. Hall 1965-5-8 111 San Mateo near canyon bottom, W San Carlos Hills Comment
  UC631333  Trifolium bifidum var. decipiens A. A. Heller 1907-5-23 8559 San Mateo back of San Mateo (on Half Moon Bay Rd) Comment
  RSA14963  Trifolium bifidum var. decipiens L. S. Rose 1935-5-1 35134 San Mateo Redwood City Comment
  UCSC005926  Trifolium buckwestiorum Randall Morgan 1996-5-18 2955 San Mateo Seed from Coal Mine Ridge Comment
  JROH2279  Trifolium dubium John Hunter Thomas 1978-4-25 19150 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2290  Trifolium fucatum John H. Thomas 1973-4-14 16560 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2294  Trifolium fucatum John Hunter Thomas 1978-4-22 19103 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2306  Trifolium fucatum John Hunter Thomas 1989-5-9 24699 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM126277  Trifolium fucatum var. fucatum R. L. Pendleton 1907-4-20 622 San Mateo Ocean View. 122 Comment
  POM223326  Trifolium fucatum var. fucatum L. S. Rose 1935-5-4 35152 San Mateo Burlingame. Comment
  RSA10398  Trifolium gracilentum Carl B. Wolf 1927-6-15 2172 San Mateo Along Skyline Drive, 8 mi. S of San Francisco. Comment
  UCSB8433  Trifolium gracilentum Haller, John 1950-3-24 San Mateo Near Atherton, 3 miles northwest of Stanford University Comment
  JROH2330  Trifolium hirtum John Hunter Thomas 1988-6-2 24498 San Mateo Jasper Ridge Biological Preserve, Stanford University; beach Comment
  RSA212223  Trifolium hirtum L. S. Rose 1970-4-23 7003 San Mateo Skyline Blvd., w. of San Mateo 122 Comment
  SJSU15443  Trifolium macraei Toni Corelli 2010-5-13 601 San Mateo Pedro Point Headlands, Pacifica, CA, along South Ridge Trail 180 Comment
  UCD109276  Trifolium oliganthum R. Tofsrud 1952-1 2 San Mateo Near Foster. Comment
  SEINET10577426  Trifolium tridentatum var. tridentatum Charles F. Baker 1903-4-8 Baker 3011 San Mateo San Andreas Lake Comment
  JROH2382  Trifolium variegatum John H. Thomas 1973-4-14 16569 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC006378  Trifolium variegatum Randall Morgan 1995-6-22 2796 San Mateo On flat top ridge W of Waterman Creek, Redtree Properties 335 Comment
  UC204145  Trifolium variegatum var. melananthum A. D. E. Elmer May, 1903 4685 San Mateo Portola Comment
  JROH5703  Trifolium variegatum var. variegatum John Rawlings 2015-3-15 1356 San Mateo Jasper Ridge Biological Preserve, Stanford University; grassy drainage on ridge-top serpentine prairie. 188 Comment
  JROH2407  Trifolium willdenovii John Hunter Thomas 1981-4-23 20475 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2412  Trifolium willdenovii John Hunter Thomas 1988-4-7 24379 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  SJSU15438  Trifolium willdenovii Toni Corelli 2010-5-13 605 San Mateo Pedro Point Headlands, Pacifica CA; along Arroyo Trail. 170 Comment
  POM278617  Trifolium willdenovii Lyman D. Benson 1930-5-1 2057 San Mateo Stanford Univ.; San Lorenzo mt. range. 122 Comment
  UCSB18210  Trifolium willdenovii Muirhead, M. 1964-4-17 San Mateo Crocker Estate, Hillsborough 76 Comment
  CAS-BOT-BC401045  Trillium J. Lovelle 1926-8-1 39 San Mateo Mt. Ellen Trail Comment
  JROH4721  Trillium chloropetalum John H. Thomas 1958-2-15 6981 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15439  Trillium chloropetalum Toni Corelli 2009-3-10 426 San Mateo Gazos Creek Road, San Mateo Coast Comment
  UC1300919  Trillium chloropetalum Helen K. Sharsmith 1963-3-23 5246 San Mateo Alpine Creek Canyon Santa Cruz Mts., Alpine Creek Canyon 243 Comment
  UC844442  Trillium chloropetalum Lewis S. Rose 1937-3-14 37001 San Mateo Emerald Lake 198 Comment
  SD27763  Trillium chloropetalum Carl B. Wolf 1927-3-6 236 San Mateo About 2 miles back of Stanford University. 60 Comment
  RSA3927  Trillium chloropetalum var. chloropetalum W. R. Dudley 1900-3-18 s.n. San Mateo Below San Andreas Dam. Comment
  CAS-BOT-BC521008  Trillium chloropetalum var. chloropetalum James McMurphy 1902-3-22 s. n. San Mateo Near Portola Comment
  CAS-BOT-BC521063  Trillium chloropetalum var. giganteum Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC521066  Trillium chloropetalum var. giganteum Elizabeth McClintock 1965-4-11 s.n. San Mateo San Bruno Mountain: Mouth of Colma Canyon near Indian Head Rock Comment
  CAS-BOT-BC521074  Trillium chloropetalum var. giganteum W. R. Dudley 1894-3-24 s.n. San Mateo Santa Cruz Peninsula: Bank of Pescadero Creek Comment
  CAS-BOT-BC521207  Trillium chloropetalum var. giganteum George Oberlander 1950-3-11 456 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC521209  Trillium chloropetalum var. giganteum James McMurphy 1902-3-22 s.n. San Mateo Above Portola Comment
  POM170122  Trillium chloropetalum var. giganteum Stewart H. Burnham 1894-2-24 10525 San Mateo Summit Springs. Comment
  CAS-BOT-BC133429  Trillium ovatum L. R. Abrams 1898-3-5 s.n. San Mateo Kings Mt. Comment
  RSA120210  Trillium ovatum S. S. Tillett, I. Sternback 1956-6-24 526 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  UC142146  Trillium ovatum Dr. E. L. Greene 1902-3-18 329 San Mateo West side King's Mountain, San Mateo County Comment
  PASA493  Trillium ovatum San Mateo Kings Mt. Comment
  RSA15280  Trillium ovatum Carl B. Wolf 1927-4-3 246 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  RSA378212  Trillium ovatum J. Doty 1969-3-26 601 San Mateo State Highway 34, 6 miles north of its junction with State Highway 38. Comment
  JROH1649  Triodanis biflora John Hunter Thomas 1979-6-12 19586 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC20846  Triphysaria eriantha subsp. rosea L. S. Rose 1965-3-25 65010 San Mateo San Bruno Mtns., N end 122 Comment
  JEPS40977  Triphysaria eriantha subsp. rosea Lewis S. Rose 1965-3-25 65010 San Mateo n end San Bruno Mts.; n end San Bruno Mts. 121 Comment
  CAS-BOT-BC238560  Triphysaria floribunda F. W. Pennell; D. D. Keck 1940-5-15 25426 San Mateo Route 101, 4 miles west of Burlingame 182 Comment
  CAS-BOT-BC238567  Triphysaria floribunda George Oberlander 1951-3-30 1182 San Mateo San Francisco Watershed Reserve Comment
  CAS-BOT-BC238569  Triphysaria floribunda L. R. A. 1902-4-13 2321 San Mateo Lake San Andreas Comment
  UC1303092  Triphysaria floribunda Roxana S. Ferris and I. L. Wiggins 1932-4-7 8038 A San Mateo hills above Colma Comment
  CAS-BOT-BC193500  Trisetum cernuum W. R. Dudley 1910-5-26 s.n. San Mateo Coal Mine Ridge, near Black Mt. - Santa Cruz Mountain Peninsula Comment
  POM276953  Triteleia hyacinthina Lyman Benson 1930-5-3 2111 San Mateo Woods, above Woodside, Santa Cruz Mtns. 366 Comment
  CAS-BOT-BC523096  Triteleia ixioides subsp. ixioides Fred Hemphill 1973-5-6 783 San Mateo San Carlos, area north of Malabar Road and Melendy Drive 207 Comment
  RSA18364  Triteleia ixioides subsp. ixioides Carl B. Wolf 1929-5-24 3724 San Mateo 1/4 mile north of base of La Honda Grade on Woodside road Comment
  JROH4747  Triteleia laxa John H. Thomas 1971-5-30 15956 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along trail below dam. Comment
  RSA18305  Triteleia laxa Carl B. Wolf 1927-5-31 411 San Mateo North end of Searsville Lake. Comment
  UC1133973  Triteleia laxa W. W. Akey 1935-5-25 26 San Mateo near Bolsa Point; Santa Cruz quad 30 Comment
  CAS-BOT-BC200487  Triticum aestivum Phillip C. Wheeler 1965-6-19 s.n. San Mateo Brisbane Lagoon Comment
  CAS-BOT-BC74054  Turritis glabra John H. Thomas 1965-4-28 10606 San Mateo San Bruno Mountain in northern part of county. 914 Comment
  CAS-BOT-BC74058  Turritis glabra Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain. Above Hillside Boulevard. South San Francisco. Comment
  UC241789  Typha latifolia Malcolm A. Nobs and S. Galen Smith 1949-8-25 1554 San Mateo Sharp Park; along ocean coast, Sharp Park Comment
  RSA10363  Typha latifolia H. A. Barker 1926-6-1 595 San Mateo Along the Peninsula. Comment
  CAS-BOT-BC212677  Ulex europaeus Phillip C. Wheeler 1965-5-17 s.n. San Mateo In Crocker Hills near Cow Palace Comment
  RSA254229  Ulex europaeus Robert A. Norris 1975-3-31 2292 San Mateo Near Crocker Avenue, San Bruno Mountains. Comment
  RSA625696  Ulex europaeus Don Pendleton 1993-11-20 s.n. San Mateo Daly City at 222 Hickey Boulevard Comment
  JROH135  Umbellularia californica John H. Thomas 1959-8-22 8081 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  POM177516  Umbellularia californica Harry A. Dutton 1900-2-18 s.n. San Mateo Woodside. Comment
  OBI37073  Umbellularia californica M. J. Erwin 1983-11-11 19 San Mateo End of driveway to Daggett residence, 100 yds W of Old Canada Rd, within property limits of Filoli Center, Canada Rd, Woodside Comment
  JROH1296  Uropappus lindleyi John Hunter Thomas 1989-5-9 24714 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1299  Urospermum picroides John Rawlings 2007-8-29 1041 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek bed at entry point from Dennis Martin site. 71 Comment
  CAS-BOT-BC404027  Urtica dioica subsp. holosericea Walter Knight; Irja Knight 1964-9-2 725 San Mateo San Bruno Mountain. In Buckeye Canyon Comment
  RSA17952  Urtica dioica subsp. holosericea Carl B. Wolf 1927-6-13 s.n. San Mateo La Honda Grade. Comment
  CAS-BOT-BC199176  Vaccinium cespitosum John H. Thomas 1961-5-7 9317 A San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC238185  Vaccinium cespitosum Peter W. Fritsch; Doug Allshouse 2012-10-19 1950 San Mateo San Bruno Mountain County Park, west end of San Bruno Mountain, at Kamchatka Point just below the Ridge Trail 318 Comment
  JEPS27348  Vaccinium cespitosum Rimo Bacigalupi with L. R. Heckard and Jim Roof 1961-4-24 7609 San Mateo due n true summit of San Bruno Mt. (directly below and ne of KQED radio power station) 342 Comment
  CAS-BOT-BC199353  Vaccinium ovatum W. R. Dudley 1893-1-20 s.n. San Mateo Near La Honda Comment
  CAS-BOT-BC199368  Vaccinium ovatum James McMurphy 1902-3-22 s.n. San Mateo Above Portola Comment
  CAS-BOT-BC228837  Vaccinium ovatum Peter W. Fritsch; Lu Lu; Lisa Fritsch; Nathan Fritsch 2012-6-30 1939 San Mateo San Bruno State Park, SE section of Ridge Trail; NE-facing slope near the summit 357 Comment
  POM131827  Vaccinium ovatum Edward L. Greene 1902-1-15 242 San Mateo West side King's Mountain. Comment
  POM176866  Vaccinium ovatum James I. McMurphy 1906-5-20 79 San Mateo Kings Mountain, Santa Cruz Mts. 457 Comment
  CAS-BOT-BC199375  Vaccinium ovatum W. R. Dudley 1902-5-17 s.n. San Mateo King's [Kings] Mountain Ranch, King's [Kings] Mountain Comment
  CDA38876  Vaccinium ovatum A. C. Browne 1950-5-3 s.n. San Mateo La Honda. 0 Comment
  POM131858  Vaccinium ovatum Stewart H. Burnham 1894-4-29 6701 San Mateo Outer Coast Range. Comment
  SEINET10449305  Vaccinium ovatum Mary Susan Taylor 1978-8-30 Taylor 1862 San Mateo Comment
  SEINET11972531  Vaccinium ovatum G. A. McCallum 1933-1 s.n. San Mateo near La Honda grade Comment
  RSA187270  Vaccinium parvifolium W. R. Dudley 1908-5-2 s.n. San Mateo Iverson's, upper Pescadero Creek. Comment
  UC141744  Vaccinium parvifolium Dr. E. B. Copeland 1903-5-9 3249 San Mateo Big Basin of Pescadero Creek Comment
  UC1206448  Vancouveria planipetala W. R. Dudley 1895-6-6 San Mateo near Peters Creek (this side of Iverson's); Santa Cruz Peninsula, near Peters 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
  JROH4147  Verbascum thapsus John Hunter Thomas 1981-9-24 20746 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389676  Verbena lasiostachys Maryann Danielson 1969-7-21 s.n. San Mateo On road into Mud Lake (San Francisco Watershed area-Dam side) Comment
  CAS-BOT-BC389699  Verbena lasiostachys Lorene Sigal 1969-7-1 s.n. San Mateo At Polhemus Road and Crystal Springs Road junction Comment
  SD38891  Verbena lasiostachys Cummings, Mc Callum 1933-5-24 3726 San Mateo Open Hills in Spring Valley Comment
  JROH4259  Verbena lasiostachys var. lasiostachys John H. Thomas 1971-5-30 15975 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA788376  Veronica americana Peter Rubtzoff 1980-8-4 9560 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Westernmost part of the area on a slope across fence. Comment
  RSA172240  Vicia americana var. americana Robert F. Thorne, Percy C. Everett, K. Thorne 1963-6-9 32207 San Mateo On top of San Bruno Mountain, near TV tower. 335 Comment
  POM278032  Vicia angustifolia Lyman D. Benson 1930-5-21 2144 San Mateo Lake Searsville. 152 Comment
  JEPS81152  Vicia benghalensis Edward Lee with H. L. Mason 1935-6-16 1527 San Mateo between Ano Nuevo and Franklin Point Comment
  SD27838  Vicia cracca Carl B. Wolf 1929-5-27 3737 San Mateo Los Trancos Creek, back of Stanford University, roadsides Comment
  CHSC27883  Vicia gigantea Susan Perkins 1978-3-24 14 San Mateo Stage Road, 4 mi. s of San Gregorio, 2.5 mi n of Pescadeero, ca. 8 mi sw of La Honda. 60 Comment
  SEINET7097925  Vicia gigantea 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
  RSA101016  Vicia gigantea G. Oberlander 1950-5-28 968 San Mateo Cahill Ridge, San Francisco Watershed Reserve Comment
  SFV4291  Vicia sativa J. Turner, F. M. Ball 1962-7-7 s. n. San Mateo Highway 1, almost 10 miles north of Santa Cruz County line Open roadside. 30 Comment
  JROH2445  Vicia sativa subsp. sativa John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2455  Vicia villosa subsp. varia John Rawlings 2012-5-15 1120 San Mateo Jasper Ridge Biological Preserve, Stanford University. South side of Road B. 89 Comment
  JROH423  Vinca major John H. Thomas 1967-4-20 12708 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA15353  Viola adunca Carl B. Wolf 1927-1-29 168 San Mateo Pebble Beach, coast south of Pescadero. Comment
  UC19259  Viola adunca Ivar Tidestrom 1894-3-24 San Mateo Comment
  CAS-BOT-BC536830  Viola glabella J. H. Thomas 1949-4-14 283 San Mateo Kings Mt. Comment
  JEPS50440  Viola ocellata James G. Daly 1934-1 210 San Mateo Branch of La Honda Canyon; Santa Cruz Mountains 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
  UC311079  Viola sempervirens A. D. E. Elmer May, 1903 4565 San Mateo King's Mountain