Search Results — 2000 specimen records retrieved (1330 records with coordinates)
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Results for search: County=SAN MATEO; Source=All;   

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

 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  SD12566  Abronia latifolia Edith Purer 1933-7-27 5381 San Mateo Two miles south of Pigeon Point Comment
  RSA0025756  Abronia latifolia H. A. Barker 1927-5-14 667 San Mateo North of Half Moon Bay. Comment
  CAS-BOT-BC177043  Acacia dealbata George Oberlander 1950-2-1 451 San Mateo San Andreas Dam Comment
  CAS-BOT-BC451126  Acaena pinnatifida var. californica Elizabeth McClintock 1965-3-14 s.n. San Mateo South Power Line Ridge; San Bruno Mountains Comment
  UC638681  Acaena pinnatifida var. californica Ethel Crum 1932-4-17 1386 San Mateo South Coast Range, San Gregorio 121 Comment
  CAS-BOT-BC333290  Acer macrophyllum A. D. E. Elmer 1903-5-1 4509 San Mateo Portola Comment
  JEPS85553  Acer macrophyllum Craig Dremann 1986-9-13 336 San Mateo at La Honda creek bridge (mile 8.12) and Cal. Hwy 84 La Honda, at La Honda creek bridge (next to burned-out Boots and Saddle Lodge, La Honda) Comment
  CAS-BOT-BC336919  Acer negundo var. californicum C. F. Baker 1902-4-6 472 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC21590  Achillea millefolium H. A. Dutton 1900-2-1 s.n. San Mateo Woodside Serpentine Comment
  CHSC39835  Achillea millefolium Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  JROH452  Achillea millefolium John Hunter Thomas 1987-5-5 24246 San Mateo Jasper Ridge Biological Preserve, Stanford University 113 Comment
  UCSB8055  Achillea millefolium Myrick, Donald 1966-6-1 San Mateo Off Highway 1 south of San Francisco near Pescadero Comment
  CAS-BOT-BC21576  Achillea millefolium David D. Keck 1939-7-1 5011 San Mateo 3 mi. S. of Pescadero, 1 mile from the ocean 60 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
  JROH462  Achyrachaena mollis John H. Thomas 1971-4-10 15754 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
  JROH2068  Acmispon glaber var. glaber G. H. Mallory 1919-7-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2109  Acmispon strigosus John H. Thomas 1961-4-29 9193 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC39809  Acmispon wrangelianus Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  JROH2095  Acmispon wrangelianus John H. Thomas 1967-5-10 12848 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2097  Acmispon wrangelianus John H. Thomas 1968-5-3 14445 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2103  Acmispon wrangelianus John Hunter Thomas 1980-4-10 19874 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5537616  Aconitum columbianum H. S. Gentry 1931-1 76 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  UC202840  Actaea rubra A. D. E. Elmer May, 1903 4703 San Mateo Butano Creek Comment
  CAS-BOT-BC29291  Adenocaulon bicolor H. L. Mason 1921-7-1 s.n. San Mateo Butano Creek Comment
  JROH478  Adenocaulon bicolor Volney Rattan 1867-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  POM56205  Adenocaulon bicolor A. D. E. Elmer 1903-06 s.n. San Mateo Pescadero Creek Comment
  SEINET191610  Adenostoma fasciculatum Lewis S. Rose 1941-6-12 41270 San Mateo Hills of Redwood City Emerald Lake. 122 Comment
  JROH3580  Adenostoma fasciculatum var. fasciculatum John Gillespie 1927-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3584  Adenostoma fasciculatum var. fasciculatum Richard L. Garber 1971-7-13 40 San Mateo Jasper Ridge Biological Preserve, Stanford University 165 Comment
  CAS-BOT-BC65514  Adiantum aleuticum D. E. Breedlove 1973-9-26 35556 San Mateo Pescadero Creek County Park 365 Comment
  IRVC14117  Adiantum aleuticum B. T. Gittins 1966-8-23 1614 San Mateo About 2 miles E of junction Alpine Road with La Honda Road. Comment
  RSA15284  Adiantum jordanii C. B. Wolf 1927-4-3 252 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  JROH2705  Aesculus californica Daniel Cohen 1953-4-11 27 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2707  Aesculus californica John H. Thomas 1971-5-30 15972 San Mateo Jasper Ridge Biological Preserve, Stanford University 120 Comment
  POM52830  Agoseris grandiflora A. D. E. Elmer 1903-04 s.n. San Mateo Crystal Springs Lake. Comment
  RSA18512  Agoseris grandiflora C. B. Wolf 1927-7-14 608 San Mateo Summit of Kings Mountain Rd. Comment
  CAS-BOT-BC23020  Agoseris grandiflora var. grandiflora Alice Eastwood 1915-6-13 4718 San Mateo Granada Comment
  CAS-BOT-BC46128  Agoseris heterophylla Ned Cahill 1974-4-29 212 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH486  Agoseris heterophylla S. J. McNaughton 1966-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Ehrlich's Area H Comment
  CAS-BOT-BC15239  Agoseris hirsuta Josephine D. Randall 1907-11-9 s.n. San Mateo Alpine road to Black Mountain Comment
  UC1153947  Agrostis densiflora Beecher Crampton 1957-6-9 4166 San Mateo along State Hwy 1 ca 5-6 mi s San Francisco (bluffs above sea) Comment
  JROH4786  Agrostis exarata John Rawlings 2004-7-23 1042 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 12, south of first footbridge 124 Comment
  SACT000091  Agrostis exarata S. Smith, Malcolm Nobs 1949-8-25 San Mateo Comment
  UC1100235  Agrostis exarata Malcolm A. Nobs, S. Galen Smith 1949-8-25 1562 San Mateo marshes at Sharp Park Comment
  SEINET10790038  Agrostis exarata var. monolepis Edwin B. Copel 1903-8-13 Copeland 3308 San Mateo Montara Point. Comment
  CAS-BOT-BC139465  Agrostis hallii A. D. E. Elmer 1903-6-1 4264 San Mateo Alpine School House. Comment
  POM199091  Agrostis hallii A. D. E. Elmer 1903-06 4264 San Mateo Alpine School House. Comment
  RSA119335  Agrostis microphylla S. S. Tillett, I. Sternback 1956-6-25 545 San Mateo On Middleton property S of road to Portola State Park, just before entrance; in secondary redwood forest. 396 Comment
  UCD53056  Agrostis microphylla S. S. Tillett; I. Sternback 1956-6-25 545 San Mateo on Middleton property s. of road to Portola State Park, just before entrance. 396 Comment
  CDA926  Agrostis pallens D. G. Kelch, B. G. Baldwin, Sue Bainbridge, Abigail Moore 2005-6-21 5 .369 San Mateo S.F. Water District land, near Spring Valley. NE corner Pilarcitos Lake. Comment
  SJSU15958  Agrostis pallens John Rawlings, Ken Hickman 2016-5-26 1835 A San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  JROH4808  Agrostis stolonifera John Rawlings 2009-7-23 1047 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry creek bed of San Francisquito Creek about 100 yards upstream from the entrance path to the creek nearest the Dennis Martin site. 71 Comment
  CAS-BOT-BC138567  Agrostis variabilis W. R. Dudley 1894-7-7 s.n. San Mateo By spring and watering trough halfway up Bear Gulch Road. Comment
  CDA38392  Agrostis viridis Wm. Davis 1957-8-16 s.n. San Mateo Nursery; Millbrae. 0 Comment
  JEPS101121  Aira caryophyllea Dean W. Taylor 1991-5-20 11786 San Mateo coastal bluffs near south bank of Pescadero Creek at Highway 1 9 Comment
  RSA87687  Aira caryophyllea Le Roy Abrams 1902-5-4 2405 San Mateo Woodside. Comment
  CAS-BOT-BC138230  Aira caryophyllea var. caryophyllea Fred Hemphill 1973-4-22 845 San Mateo San Carlos. North of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC138246  Aira caryophyllea var. caryophyllea H. A. Borthwick 1920-6-1 187 San Mateo Santa Cruz Mountain Peninsula. Back of Redwood City. Comment
  JROH4568  Allium John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC398649  Allium dichlamydeum L. R. Abrams 1926-5-26 San Mateo a short distance s original station <type locality?> (w slope of San Bruno Hills); San Bruno Hills Comment
  CAS-BOT-BC467295  Allium dichlamydeum J. Ed. McClellan; Bonnie McClellan 1968-6-1 s.n. San Mateo Ocean bluff at Pigeon Point Comment
  POM196559  Allium lacunosum var. lacunosum H. L. Mason 1921-5-13 s.n. San Mateo Jasper Ridge near Sand Hill Caves Comment
  CAS-BOT-BC472790  Allium neapolitanum J. Ed. McClellan; Bonnie McClellan 1972-4-1 4 San Mateo Bernal Ave, Burlingame Comment
  CAS-BOT-BC132026  Allium peninsulare var. franciscanum D. E. Breedlove 1963-5-13 4942 San Mateo On the SE corner of the junction of Crystal Springs Road and Polhemus Road, W of San Mateo Comment
  CAS-BOT-BC475496  Allium triquetrum P. C. Wheeler 1966-3-27 s.n. San Mateo Crocker Industrial Park, San Bruno Mountain Comment
  CAS-BOT-BC474305  Allium unifolium J. H. Thomas 1949-6-4 570 San Mateo Along the coast, 1.4 miles south of road to Pescadero Comment
  CAS-BOT-BC169340  Alnus rubra L. R. Abrams 1907-8-1 s.n. San Mateo near Pescadero on road to Half Moon Bay. Santa Cruz Mountain Peninsula Comment
  SEINET3917721  Alopecurus aequalis Lewis S. Rose 1932-5-3 32209 San Mateo San Bruno.; 0 183 Comment
  JROH176  Amaranthus albus John Hunter Thomas 1977-6-16 18786 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG39514  Amaranthus deflexus L. S. Rose 1970-7-26 70079 San Mateo Hillsborough, Black Mtn, Skyline Blvd 121 Comment
  JROH4575  Amaryllis belladonna Ann Lambrecht 2007-9-5 43 San Mateo Jasper Ridge Biological Preserve, Stanford University. At old garden near Douglas iris site. Comment
  POM223661  Ambrosia chamissonis L. S. Rose 1935-9-29 35653 San Mateo Granada 3 Comment
  CAS-BOT-BC44928  Ambrosia chamissonis Lewis S. Rose 1956-8-13 56144 San Mateo Princeton sand dunes 6 Comment
  RSA416938  Ambrosia chamissonis var. chamissonis D. D. Keck 1931-10-5 1285 San Mateo 1 mile north of Salada Beach, 200 meters from the ocean. Comment
  CAS-BOT-BC55526  Ambrosia psilostachya W. R. Dudley 1902-9-21 s.n. San Mateo On causeway over Crystal Springs Reservoir Comment
  POM139628  Amelanchier pallida A. D. E. Elmer 1903-05 4659 San Mateo Slates Creek. Comment
  RSA181301  Amelanchier pallida John H. Thomas 1965-5-15 10657 San Mateo Santa Clara County: Mt. Hamilton Range road banks 1 mile toward San Jose along the Hwy from Smith Creek. Comment
  JROH5617  Amelanchier utahensis Ann Lambrecht 2014-4-29 49 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 14, about midway between dam and road C. 98 Comment
  CAS-BOT-BC136836  Amelanchier utahensis L. R. Abrams 1909-4-27 s.n. San Mateo San Mateo [Canon] Canyon, between Pulpit Rock and the forks of the Road Comment
  CAS-BOT-BC214049  Amsinckia James McMurphy 1906-3-10 s.n. San Mateo By stone crusher. Comment
  JEPS26834  Amsinckia intermedia Rimo Bacigalupi with H. G. Baker and L. R. Heckard 1961-5-14 7697 San Mateo 3/4 mi below and se of Stone Dam Resevoir (in canyon of Pilarcitos Creek, w base of Cahill Ridge); Pilarcitos Creek 152 Comment
  NY380647  Amsinckia lunaris A. A. Heller 1907-5-23 8555 San Mateo Back of San Mateo on the Half Moon Bay road. Comment
  UC24623  Amsinckia spectabilis Alice Eastwood April 1896 San Mateo Crystal Springs Comment
  UCD14397  Anagallis arvensis Marcy Dickenson 1983-4-23 120 San Mateo San Mateo Co.; on Jasper Ridge, at the Stanford Biological Preserve, within 1 mile of Westridge Road entrance; Comment
  CAS-BOT-BC45181  Anaphalis margaritacea John Hunter Thomas 1963-9-11 10265 San Mateo San Bruno Mountain, in northern part of country 396 Comment
  UC1125509  Anaphalis margaritacea G. E. Sindel 1935-7-30 315 San Mateo 3/4 mi n of Pomponio Creek; Santa Cruz Quad. 259 Comment
  CAS-BOT-BC45186  Anaphalis margaritacea Phillip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain, NW Radio Road Comment
  POM148966  Anemone grayi A. D. E. Elmer 1903-04 4844 San Mateo Kings Mtn. Comment
  RSA492532  Angelica hendersonii Lyman Benson 1937-6-27 8397 San Mateo Moss Beach Comment
  CAS-BOT-BC221455  Angelica hendersonii W. R. Dudley 1909-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Mussel Rock Comment
  POM132666  Angelica tomentosa var. tomentosa A. D. E. Elmer 1903-07 4998 San Mateo Crystal Springs Lake, southern end Comment
  CAS-BOT-BC273173  Anisocarpus madioides Ira L. Wiggins 1925-4-1 1663 San Mateo On Kings Mountain Road three fourths of a mile above Woodside Comment
  CAS-BOT-BC344841  Anthemis cotula Peter Rubtzoff s.n. San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC280673  Anthoxanthum nitens John H. Thomas 1974-5-9 17330 San Mateo San Pedro Valley, Northern part of county, inland from Pacifica 152 Comment
Read comments
Jul 28 2017
  UCD85325  Anthoxanthum occidentale August L. Hormay 1932-3-6 s.n. San Mateo Pescadero Blumequist Mill - Redwood belt. Comment
  JROH197  Anthriscus caucalis John H. Thomas 1973-4-20 16580 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
  JROH202  Anthriscus caucalis John Hunter Thomas 1981-4-21 20456 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR101615  Anthriscus caucalis George K. Helmkamp, E. A. Helmkamp 1998-5-16 3745 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  JROH3912  Antirrhinum kelloggii Oz Garton 1968-6-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM132688  Apiastrum angustifolium A. D. E. Elmer 1903-06 4461 San Mateo Crystal Springs Lake. Comment
  UCR122980  Aquilegia formosa George K. Helmkamp, E. A. Helmkamp 2001-6-2 6772 San Mateo San Francisco Bay Region, Purisima Creek Road, east of Half Moon Bay at Purisima Creek, 3.2 miles east of CA Hwy 1 244 Comment
  CAS-BOT-BC405854  Aquilegia formosa Ray H. Yanis 1951-4-19 22 San Mateo King's Mountain. 15 Comment
  CAS-BOT-BC405858  Aquilegia formosa Paul Arnaud 1941-4-19 s.n. San Mateo Hills - after Hesler farm enterance. Redwood City Comment
  UC1537326  Aquilegia formosa Gordon H. True Jr. 1936-4-5 388 San Mateo canyon betw san Gregorio adn Pescadero 152 Comment
  RSA51241  Aquilegia formosa var. truncata Peter H. Raven 1950-4-16 s.n. San Mateo Colma Canyon, San Bruno Mountains. 183 Comment
  CAS-BOT-BC17322  Arabis blepharophylla Paul F. Covel 1937-4-15 578 San Mateo Montara Mountains. Highway summit. Comment
  CAS-BOT-BC17331  Arabis blepharophylla Lewis S. Rose 1961-4-5 61032 San Mateo San Bruno Mountains. 365 Comment
  JEPS83068  Arabis blepharophylla Roy E. Buck, Randall A. Morgan, and James A. West 1983-7-15 435 San Mateo 3.2 km nw Pilarcitos Dam (and 2.4 km wsw of San Andres Dam, along crest of Fifield Ridge, w of gravel rd, San Francisco Watershed Reserve); Fifield Ridge, San Francisco Watershed Reserve 388 Comment
  JEPS90964  Arabis blepharophylla Dean W. Taylor 1992-3-19 12334 San Mateo in saddle just e of San Pedro Mountain reached via old paved road from San Pedro Valley (Santa Cruz Mountains, Montara Mountain); Santa Cruz Mountains, Montara Mountain 274 Comment
  UC1300996  Arabis blepharophylla Helen K. Sharsmith 1963-2-16 5137 San Mateo above Daly City (lower San Bruno Mountain); San Francisco Bay Region, San Bruno Mountain 106 Comment
  SEINET11989202  Arabis blepharophylla E. McClintock, Knight, W.; Knight, I. 1982-1 4640 San Mateo Kamchatka Point, San Bruno Mountains Comment
  RSA112474  Aralia californica Theo C. Zschokke 1903-7-10 s.n. San Mateo Goat Ranch Road, Corte de Madera Cr. Comment
  CAS-BOT-BC128671  Arbutus menziesii E. A. McGregor 1907-4-28 s.n. San Mateo King's Mountain 243 Comment
  JROH1918  Arbutus menziesii John H. Thomas 1967-6-1 12983 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM131700  Arbutus menziesii Stewart H. Burnham 1895-3-9 6555 San Mateo Outer Coast Range Comment
  UCSB11754  Arbutus menziesii Olson, Jim 1962-4-17 San Mateo 1 mile south of La Honda on Skyline Boulevard 670 Comment
  CDA22357  Arceuthobium campylopodum E. L. Labadie 1959-10-16 San Mateo Nursery, Burlingame. 0 Comment
  JROH5561  Arctostaphylos John Rawlings, Toni Corelli 2013-1-29 1110 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail to Hermit's Mine site. 195 Comment
  UC1137192  Arctostaphylos G. Ward 1940-8-5 2 San Mateo San Bruno Mt. San Mateo Quadrangle Comment
  SEINET11989292  Arctostaphylos S. W. Edwards 1982-1 s.n. San Mateo Foothill Park Comment
  CAS-BOT-BC24198  Arctostaphylos andersonii A. T. Harrison 1970-3-13 s.n. San Mateo San Francisco Watershed reserve. On ridge west of Old Whipple Rd. on western extension of Edgewood Rd. Comment
  CAS-BOT-BC24200  Arctostaphylos andersonii W. R. Dudley 1906-5-8 s.n. San Mateo Near Crystal Springs Lake, Santa Cruz mts. Comment
  JEPS110501  Arctostaphylos andersonii Robert E. Preston 2004-6-9 2251 San Mateo Ca. 8 mi NW of Boulder Creek, in Pescadero Creek watershed. 160 Comment
  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
  UCD50393  Arctostaphylos andersonii Robert E. Preston 2001-6-11 1540 San Mateo Butano Ridge. 658 Comment
  POM285158  Arctostaphylos columbiana Lyman Benson 1928-12-15 835 San Mateo La Honda. 457 Comment
  CAS-BOT-BC23508  Arctostaphylos crustacea L. S. Rose 1932-1-29 3221 San Mateo Belmont Comment
  CAS-BOT-BC23510  Arctostaphylos crustacea Margaret A. Barry 1938-5-22 s.n. San Mateo Small patch on top of Coal Mine Ridge Comment
  CAS-BOT-BC23517  Arctostaphylos crustacea A. D. E. Elmer 1903-5-1 4558 San Mateo King Mt. Comment
  SEINET11989199  Arctostaphylos crustacea E. McClintock, Knight, W.; Knight, I. 1982-1 4646 San Mateo San Pedro County Park, near Pacifica Comment
  JROH1925  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1974-6-30 17463 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1927  Arctostaphylos crustacea subsp. crustacea Mrs. S. H. Babcock 1895-2-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Comment
  JROH1936  Arctostaphylos crustacea subsp. crustacea Toni Corelli 2006-1-20 308 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9 134 Comment
  CAS-BOT-BC24728  Arctostaphylos glandulosa subsp. glandulosa Elizabeth McClintock 1972-3-26 s.n. San Mateo Middle Buckeye Canyon, San Bruno Mtn. Comment
  CAS-BOT-BC24484  Arctostaphylos imbricata Arthur L. Menzies 1962-2-25 s.n. San Mateo San Bruno Mt. Comment
  CAS-BOT-BC24488  Arctostaphylos imbricata Lewis S. Rose 1955-2-25 55002 San Mateo San Bruno Hills. Type Locality. Comment
  SBBG21959  Arctostaphylos montaraensis R. F. Thorne with P. C. Everett 1963-6-9 32224 San Mateo top of San Bruno Mtn, near the TV Tower 335 Comment
  SEINET11989109  Arctostaphylos montaraensis Unknown 1966-1 740 B San Mateo Montara Mountain Comment
  JEPS98893  Arctostaphylos pacifica James Roof 1961-4-18 San Mateo type locality; Pacific Ridge, San Bruno Mountain Comment
  RSA633499  Arctostaphylos pacifica Jon E. Keeley 1996-6-24 27573 San Mateo On knob below end of paved road at top of San Bruno Mountain. 350 Comment
  CAS-BOT-BC44739  Arctostaphylos regismontana L. R. Abrams 1902-1-12 2254 San Mateo Kings Mountain Comment
  CAS-BOT-BC44742  Arctostaphylos regismontana J. H. Thomas 1949-3-29 2000 San Mateo Kings Mt. Rd. Comment
  JEPS78656  Arctostaphylos regismontana Edward Lee 1936-1-26 1735 San Mateo King's Mountain Rd 4.7 mi from Woodside (e side of ridge); Cahill Ridge Comment
  POM132205  Arctostaphylos regismontana A. D. E. Elmer 1903-03 4537 San Mateo Kings Mountain. Comment
  POM285164  Arctostaphylos regismontana Lyman Benson 1929-3-5 975 San Mateo Summit of Kings Mountain 762 Comment
  POM87727  Arctostaphylos regismontana L. R. Abrams 1902-1-12 2254 San Mateo Kings Mountain. Comment
  RSA0089798  Arctostaphylos regismontana Dean Wm. Taylor 2016-3-30 21632 San Mateo Kings Mountain Road; under PG&E transmission powerlines just north of the road along the entrance road to the Archery Range. 557 Comment
  RSA1939  Arctostaphylos regismontana C. B. Wolf 1930-11-6 1067 San Mateo 2 mi N of Summit of Kings Mountain, Skyline Blvd. 640 Comment
  RSA40324  Arctostaphylos regismontana L. S. Rose 1947-3-11 47028 San Mateo Kings Mountain, Type Locality. 609 Comment
  RSA636746  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24630 San Mateo NW side of Montara Mtn. 150 Comment
  UC1120831  Arctostaphylos regismontana A. E. Wieslander and B. O. Schreiber 1940-3-5 4 San Mateo road from Woodside to King's Mt.; Santa Cruz Quadrangle 304 Comment
  UC1120832  Arctostaphylos regismontana A. E. Wieslander and B. O. Schreiber 1940-3-5 1 San Mateo near Woodside road to King's Mountain; Santa Cruz Quadrangle 182 Comment
  UC1120846  Arctostaphylos regismontana C. M. Belshaw 1935-1-25 1466 San Mateo Kings Mt. Rd 4.7 mi w Woodside; Santa Cruz Quadrangle 609 Comment
  UC1543114  Arctostaphylos regismontana Donald G. Nelson 1938-11-13 592 San Mateo on Skyline Blvd n summit of Kings Mountain Comment
  UC311533  Arctostaphylos regismontana A. D. E. Elmer March 1903 4537 San Mateo King's Mountain Comment
  CAS-BOT-BC44667  Arctostaphylos sensitiva T. J. B. 1913-3-14 s.n. San Mateo South side of Chrystal Springs Lake on Road this side of Rand's store Comment
  CAS-BOT-BC44672  Arctostaphylos sensitiva W. R. Dudley 1899-1-2 s.n. San Mateo On dry hills between Butano Cr. and Little Butano Cr. - Santa Cruz Mountain Peninsula Comment
  JEPS90463  Arctostaphylos tomentosa subsp. crinita Dean W. Taylor 1994-7-5 14744 San Mateo ca. 2 mi se Pescadero (far western end of ridge, on private road that leaves Cloverdale Rd. 0.3 mi s of Pescadero High School); Santa Cruz Mountains, Butano Ridge 228 Comment
  HSC24032  Arctostaphylos tomentosa subsp. crustacea Mary Katherine Wicksten 1971-6-17 29 San Mateo Huddart Park, Zwierlein Trail Comment
  JEPS48595  Arctostaphylos tomentosa subsp. crustacea James G. Daly 1934-1 570 San Mateo San Gregorio watershed Santa Cruz Mts. (sw San Mateo Co.) Comment
  RSA155444  Arctostaphylos tomentosa subsp. crustacea L. S. Rose 1961-2-16 61002 San Mateo Hills w. of Belmont. 183 Comment
  RSA636840  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24652 San Mateo NW side of Montara Mtn. 150 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
  UC1120137  Arctostaphylos tomentosa subsp. crustacea C. M. Belshaw 1935-1-25 1465 San Mateo 4.5 mi w Woodside; Santa Cruz Quadrangle Comment
  UC82933  Arctostaphylos tomentosa subsp. crustacea Katharine Brandegee April 1889 San Mateo Redwood City Comment
  CAS-BOT-BC46828  Arctostaphylos uva-ursi Mrs. Campbell; Mrs. Miere s.n. San Mateo San Bruno hills Comment
  UCD52146  Arctostaphylos uva-ursi Walter and Irja Knight; Elizabeth McClintock 1981-7-3 4492 San Mateo Near rocky outcrop at Kamchatka Point, San Bruno Mountain. San Mateo County. Comment
  SEINET11987485  Arctostaphylos uva-ursi J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4212 San Mateo Strybing Arboretum, Golden Gate Park, San Francisco, orig. from San Bruno Mt., near Pacific Rock Comment
  SEINET11987491  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4208 San Mateo Strybing Arboretum, Golden Gate Park, San Francisco, orig. from upper Cable Ravine, San Bruno Mt Comment
  SEINET11989301  Arctostaphylos uva-ursi var. suborbiculata W. Knight, Knight, I.; McClintock, E. 1982-1 4442 San Mateo Kamchatka Point, San Bruno Mt Comment
  SJSU4470  Armeria maritima subsp. californica S. R. Piazza 1963-6-27 San Mateo by lighthouse , Hwy 1, 2 mi N of Pigeon Point Comment
  UCD98491  Armeria maritima subsp. californica Kathyrn L. Koch 1965-5-1 48 San Mateo Arroyo de los Frijoles Beach State Park, just south of State Highway 1 junction. Comment
  POM288964  Artemisia biennis Lyman Benson 1928-11-25 788 San Mateo Stanford Univ-- Lake Searsville. Santa Cruz Mts. 152 Comment
  JROH513  Artemisia biennis Roxana S. Ferris 1924-10-6 4096 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake on Portola Highway Comment
  SEINET11853229  Artemisia californica Unknown 1930-1 7303 San Mateo Menlo Park Golf Court Comment
  JROH519  Artemisia douglasiana John Hunter Thomas 1981-9-24 20744 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH522  Artemisia douglasiana John Hunter Thomas 1982-7-2 21057 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  UCSC007719  Artemisia douglasiana Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  RSA417371  Artemisia pycnocephala Edith A. Purer 1933-7-27 5387 San Mateo 2 mi. S of Pigeon Pt. Comment
  CAS-BOT-BC384619  Asarum caudatum J. Lovelle 1973-8-5 75 San Mateo Pomponio Canyon Comment
  JROH433  Asclepias fascicularis John H. Thomas 1974-8-11 17508 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10637037  Asclepias fascicularis Lewis S. Rose 1936-8-19 Rose 36714 San Mateo San Carlos 30 Comment
  RSA97496  Aster chilensis L. S. Rose 1954-8-29 54112 San Mateo Tunitas 30 Comment
  POM54249  Aster radulinus A. D. E. Elmer 1903-07 4973 San Mateo Portola Comment
  CAS-BOT-BC186756  Astragalus gambelianus George Oberlander 1950-4-22 786 San Mateo San Andreas Valley Comment
  CAS-BOT-BC186763  Astragalus gambelianus Ned Cahill 1974-4-18 114 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH1996  Astragalus gambelianus John Hunter Thomas 1984-4-2 23273 3 C San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge fence Comment
  UC903415  Astragalus gambelianus Lois E. James 1946-4-16 1740 San Mateo high road off Woodside Road hill back Redwood City; hills back of Redwood City Comment
  CAS-BOT-BC194426  Astragalus nuttallii var. virgatus Delzie Demaree 1933-6-12 10376 San Mateo Baden Station, South San Francisco Comment
  CAS-BOT-BC193096  Astragalus pycnostachyus var. pycnostachyus W. R. Dudley 1894-4-21 s.n. San Mateo Field near Crystal Springs Reservoir 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
  JEPS15531  Atriplex leucophylla G. Thomas Robbins 1956-8-18 3739 San Mateo along ocean shore near the mouth Pomponio Creek; near mouth Pomponio Creek Comment
  RSA478328  Atriplex leucophylla E. A. Purer 1933-7-27 5349 San Mateo Pigeon Point. Comment
  JROH4842  Avena barbata W. Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9 Comment
  SD110280  Avena barbata T. C. Fuller 1971-6-10 19879 San Mateo 1.6 km east of San Gregorio Comment
  CAS-BOT-BC146214  Avena brevis John Thomas Howell 1954-6-16 30003 San Mateo Belmont. Raslton Avenue at 6th. Comment
  UCD56301  Avena fatua P. B. Kennedy 1928-5-2 s.n. San Mateo E of Daly City. Comment
  SEINET3919671  Avena fatua var. glabrata K. Allred 1975-1-3 1269 San Mateo Half Moon Bay. Along access road to Dune Beach.; 0 Comment
  JROH5  Azolla filiculoides S. F. Blake 1927-6-24 9944 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  JROH6  Azolla filiculoides Lawrence J. Winship 1974-11-16 16 San Mateo Jasper Ridge Biological Preserve, Stanford University. On and below Searsville Dam Comment
  UCD136025  Azolla microphylla Malcolm A. Nobs; S. Galen Smith 1949-8-26 1593 San Mateo At the mouth of Pescadero Creek. Comment
  RSA18494  Baccharis douglasii C. B. Wolf 1927-7-14 626 San Mateo 1 mile west of summit of La Honda Grade Comment
  CAS-BOT-BC99507  Baccharis pilularis Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo Radio Road, San Bruno Mountains Comment
  CAS-BOT-BC99514  Baccharis pilularis John H. Thomas 1969-10-19 15483 San Mateo near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC99529  Baccharis pilularis Carl B. Wolf 1930-11-5 1807 San Mateo 4 mi. so. of Pescadero 7 Comment
  JEPS85567  Baccharis pilularis Craig Dremann 1986-9-13 332 San Mateo near, stage rd half-way between San Gregorio and Pomponio Cr. along rdside San Gregorio Comment
  POM213037  Baccharis pilularis C. B. Wolf 1934-11-9 6240 San Mateo 200 yards south of Pigeon Point Lighthouse 15 Comment
  POM289736  Baccharis pilularis Lyman Benson 1934-12-15 6215 San Mateo Creek Hills; Santa Cruz Mt. Range; Corte Madera Creek Watershed 152 Comment
  POM350434  Baccharis pilularis L. S. Rose 1936-8-16 36712 San Mateo Granada 15 Comment
  RSA2153  Baccharis pilularis C. B. Wolf 1931-5-6 1807 San Mateo 4 miles south of Pescadero 8 Comment
  RSA51370  Baccharis pilularis L. S. Rose 1949-9-20 49182 San Mateo Sharp Park Comment
  LA203030  Baccharis pilularis subsp. pilularis C. B. Wolf; 1934-11-9 6240 San Mateo 200 yds. S of Pigeon Point Lighthouse 15 Comment
  CAS-BOT-BC16618  Barbarea orthoceras Javier Penalosa 1963-3-9 2697 San Mateo San Bruno Mountains. Ravine 0.5 mile east of 1314 foot summit. 304 Comment
  CAS-BOT-BC16629  Barbarea orthoceras Peter H. Raven 1951-3-12 2744 San Mateo Summit ridge San Bruno Mountains. Comment
  CAS-BOT-BC16635  Barbarea orthoceras Alice Eastwood 1914-3-12 s.n. San Mateo San Bruno Hills. Comment
  CAS-BOT-BC16643  Barbarea orthoceras George Oberlander 1949-4-30 94 San Mateo San Francisco Watershed Reserve. North boundary. Comment
  JROH1445  Barbarea orthoceras John Hunter Thomas 1980-5-6 19933 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA482825  Barbarea orthoceras Glenn A. Gorelick 1967-4-4 s.n. San Mateo San Bruno Mts; overlooking Daly City near San Francisco. Comment
  UC1191421  Bassia hyssopifolia Malcolm A. Nobs and S. Galen Smith 1949-8-27 1617 San Mateo salt marshes e Redwood City Comment
  JEPS35291  Bellardia trixago J. H. Thomas 1962-5-8 9852 San Mateo Pigeon Point Comment
  JROH3914  Bellardia trixago John H. Thomas 1974-5-19 17382 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  UC1733840  Bellardia trixago Kay H. Beach 1941-4-26 1077 San Mateo S of San Francisco city limits Skyline Drive 76 Comment
  UC909626  Bellardia trixago Kay H. Beach 1941-4-26 1077 San Mateo s of San Francisco city limits (along Skyline Drive) 76 Comment
  SJSU945  Berberis aquifolium W. M. Bybee 1948-2-20 San Mateo residence, Burlingame 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-BC75881  Berberis pinnata Art Menzies; Barbara Menzies 1965-3-14 s.n. San Mateo San Bruno Mountain. Reservoir Hill. Comment
  RSA435933  Berberis pinnata Paul C. Silva 1948-1-31 2623 San Mateo Old La Honda Grade, 1 mile south of Skyline Blvd. 457 Comment
  JROH1322  Berberis pinnata subsp. pinnata John Rawlings 2007-4-1 0909 San Mateo Jasper Ridge Biological Preserve, Stanford University. Intersection Trail 1 and Trail 5. 84 Comment
  CAS-BOT-BC66300  Blechnum spicant W. R. Dudley 1897-1-1 s.n. San Mateo By Buano Cr. above Falls and below Sinnatts Comment
  CAS-BOT-BC31089  Bolboschoenus maritimus Ira L. Wiggins 1973-7-29 22056 San Mateo Sandy bed of of San Francisquito Creek, ca 80 m upstream from Pope St Bridge Comment
  CAS-BOT-BC95352  Bowlesia incana W. R. Dudley 1894-3-27 s.n. San Mateo Above falls at mouth of Purisima Creek 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
  JROH4852  Brachypodium distachyon John Hunter Thomas 1986-6-7 24089 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4861  Brachypodium distachyon John Hunter Thomas 1990-5-17 24859 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET14395443  Brachypodium sylvaticum J. Beall 2003-12-4 San Mateo Santa Cruz Mountains, Woodside on Hwy 84 at Grandview Dr., about 1 mile from Skyline Road summit. 427 Comment
  CAS-BOT-BC28047  Brassica fruticulosa Elizabeth McClintock; Paul Reeberg 1989-2-4 s.n. San Mateo San Bruno Mountains. Near horse corral, off Bayshore. Comment
  CAS-BOT-BC29992  Brassica juncea Fred Hemphill 1973-5-14 814 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  JROH1457  Brassica nigra D. E. Breedlove 1971-5-31 19364 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  CAS-BOT-BC36668  Brassica oleracea John H. Thomas 1966-5-28 11644 San Mateo In central part of Menlo Park near Post Office. Comment
  RSA15631  Brassica oleracea C. B. Wolf 1927-6-15 1468 San Mateo Along Skyline Drive, 8 mi. S of San Francisco. Comment
  JROH1463  Brassica rapa John H. Thomas 1975-4-5 17707 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1469  Brassica rapa John Hunter Thomas 1981-4-7 20295 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Whiskey Hill and Sand Hill Road gate Comment
  CAS-BOT-BC36797  Brassica rapa Alice Eastwood 1919-9-1 s.n. San Mateo Chinese garden. Comment
  CAS-BOT-BC145329  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo Near San Carlos. Comment
  CAS-BOT-BC145335  Briza minor Paul Arnaud 1941-4-17 s.n. San Mateo Redwood City, Jefferson Avenue. Comment
  CDA1781  Briza minor A. A. Beetle 1941-4-2 1738 San Mateo Near San Carlos Comment
  JROH4883  Briza minor John H. Thomas 1973-4-14 16557 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4889  Briza minor John Hunter Thomas 1983-6-2 22334 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM204993  Briza minor E. B. Copeland 1903-5-24 3257 San Mateo Along Crystal Springs Lake Comment
  UCD57379  Briza minor D. H. Hartmann 1941-4-26 s.n. San Mateo West of Palo Alto. Comment
  UCR101608  Briza minor George K. Helmkamp, E. A. Helmkamp 1998-5-16 3747 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  UCR121574  Briza minor George K. Helmkamp, E. A. Helmkamp 1999-6-28 5006 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  SEINET10868322  Briza minor Alan A. Beetle 1941-4-20 Beetle 1738 San Mateo Near San Carlos, rich heavy loam, in open field. Comment
  CAS-BOT-BC482182  Brodiaea appendiculata J. C. Chamberlain 1922-1-1 s.n. San Mateo Fields near San Francisquito Creek back of Stanford University Comment
  UCSB841  Brodiaea coronaria Walker, Clifford 1954-4-20 San Mateo Corner of Jefferson and Canada Rds. Comment
  CAS-BOT-BC484345  Brodiaea elegans subsp. elegans Ned Cahill 1974-5-30 323 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  UC421870  Brodiaea terrestris subsp. terrestris Katharine Brandegee San Mateo Moss Beach Comment
  CAS-BOT-BC483175  Brodiaea terrestris subsp. terrestris James McMurphy 1906-5-8 s.n. San Mateo Between Woodside and Byre's Store Comment
  CAS-BOT-BC483180  Brodiaea terrestris subsp. terrestris W. R. Dudley 1906-5-8 s.n. San Mateo By road south of Crystal Springs Lake, Santa Cruz Peninsula Comment
  SEINET12057834  Brodiaea terrestris subsp. terrestris Copeland 1903-6-5 3297 San Mateo Montara Pt Comment
  UCD57754  Bromus berteroanus Margaret Joy Marshall 1977-4-9 s.n. San Mateo San Mateo. Canada and Edgewood Rd. Comment
  RSA195508  Bromus carinatus John H. Thomas 1966-4-13 11558 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC148976  Bromus carinatus var. carinatus Lewis S. Rose 1956-5-7 56069 San Mateo Skyline Boulevard west of San Mateo. 182 Comment
  CAS-BOT-BC148981  Bromus carinatus var. carinatus Peter H. Raven 1950-6-3 2253 San Mateo Woods around San Andreas Lake. 121 Comment
  CAS-BOT-BC149014  Bromus carinatus var. carinatus Javier Penalosa 1963-3-30 2711 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Boulevard. In SSF. 91 Comment
  JROH4900  Bromus carinatus var. carinatus John Rawlings 2013-4-16 1136 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along the Escobar Gate fenceline about 100 m east of the gate 149 Comment
  JROH4902  Bromus carinatus var. carinatus Toni Corelli 2009-5-11 356 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Road C 112 Comment
  UC1755115  Bromus catharticus Dean W. Taylor 1988-3-30 9492 San Mateo San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest; right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain 176 Comment
  UCD58360  Bromus catharticus John C. Throckmorton 1976-6-29 s.n. San Mateo La Honda. 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-BC155138  Bromus hordeaceus Ned Cahill 1974-4-29 190 San Mateo Near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City. Comment
  JROH4920  Bromus hordeaceus John H. Thomas 1967-5-12 12889 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4924  Bromus hordeaceus John Hunter Thomas 1984-4-24 23303 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD58829  Bromus hordeaceus Beecher Crampton 1962-6-11 6504 San Mateo Sharp Park. Mori's Point Road just west of State Hwy. 1. Comment
  JROH4933  Bromus laevipes John H. Thomas 1967-5-12 12865 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  CAS-BOT-BC162309  Bromus madritensis Paul Arnaud 1941-4-17 s.n. San Mateo Redwood City, Jefferson Avenue. Comment
  JROH4948  Bromus madritensis subsp. rubens John Hunter Thomas 1988-6-2 24503 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near old bridge Comment
  JROH4958  Bromus madritensis subsp. rubens John Rawlings 2013-4-30 1181 B San Mateo Jasper Ridge Biological Preserve, Stanford University; along Road B near south boundary fence 78 Comment
  SJSU16025  Bromus maritimus John Rawlings, Toni Corelli 2016-5-13 1790 San Mateo Vallemar Bluff, Moss Beach. USGS Montara Mountain OE W 7.5 Minute (1:24,000 Scale) Topographic Map. 11 Comment
  CAS-BOT-BC161753  Bromus rubens Ned Cahill 1974-4-30 217 San Mateo Near the inersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City. Comment
  JROH5589  Bromus sterilis John Rawlings 2013-4-10 1145 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Near power poles in partial shade on Rattlesnake Rocks trail off of Rd. D. 131 Comment
  POM277332  Bromus vulgaris Lyman Benson 1937-7-15 8452 San Mateo Upper San Francisquito Creek. Santa Cruz Mt. Range. 244 Comment
  CAS-BOT-BC233711  Buddleja davidii Phillip Wheeler 1965-6-8 s.n. San Mateo Bayshore, lower cut area, San Bruno Mountain Comment
  CAS-BOT-BC36866  Cakile edentula var. edentula Reed Clark Rollins 1941-7-19 2961 San Mateo Half Moon Bay, along the beach. Comment
  CHSC81474  Cakile maritima Sabrina Wright; Brandi Pedigo, Jessica Wright, Nicky Wright 2000-3-4 San Mateo Rockaway Beach, Pacifica. 0 Comment
  SD129649  Cakile maritima Donald G. Nelson 1938-7-28 581 San Mateo Moss Beach Comment
  RSA30868  Cakile maritima R. C. Rollins 1942-11-4 3032 San Mateo Miramar Beach, about 5 miles N of Half Moon Bay. Comment
  CAS-BOT-BC36948  Cakile maritima var. maritima J. H. Thomas 1954-4-3 3829 San Mateo Dunes Beach, about 1.5 mile northwest of Half Moon Bay. Comment
  CAS-BOT-BC36961  Cakile maritima var. maritima Robert Robertson 1954-5-1 126 San Mateo By roadside at back of beach near San Gregorio Creek. 6 Comment
  CAS-BOT-BC185141  Calamagrostis nutkaensis Elizabeth McClintock 1967-6-24 s.n. San Mateo San Bruno Mountain. Top of mountain between radio stations on Radio Road. Comment
  CAS-BOT-BC185147  Calamagrostis nutkaensis A. D. E. Elmer 1903-5-1 5040 San Mateo San Pedro. Comment
  UC204077  Calamagrostis nutkaensis A. D. E. Elmer 1903-5-1 5051 San Mateo San Pedro Comment
  SD38112  Calandrinia ciliata Marie Cummings 1933-5-3 69 San Mateo Woodside Comment
  UC1084413  Calandrinia ciliata G. Thomas Robbins 1937-4-11 105 San Mateo grassy meadow near Spring Valley Lakes (along road to Woodside) Comment
  JROH3328  Calandrinia menziesii John Hunter Thomas 1981-4-5 20263 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC273256  Calendula officinalis Elizabeth McClintock; Paul Reeberg 1988-3-15 s.n. San Mateo San Bruno Mountains. Entrance to Olivet Ravine Comment
  JROH1632  Callitriche marginata John H. Thomas 1968-3-17 14193 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC575678  Calochortus albus Lewis S. Rose 1935-6-11 35214 San Mateo 9 mi w Stanford University Comment
  UC72477  Calochortus albus Milo S. Baker May 1904 San Mateo near Burlingame Comment
  CAS-BOT-BC492212  Calochortus albus Ned Cahill 1974-5-13 270 San Mateo Chaparral near the intersection of Canda and Edgewood rods, about 3 mi westward from Redwood City. Comment
  CAS-BOT-BC492219  Calochortus albus Daniel Cohen 1953-6-3 105 San Mateo Los Trancos Woods. Comment
  SEINET3884903  Calochortus albus Lewis S. Rose 1956-6-11 56098 San Mateo 2 mi. w. of Woodside, Kings Mt. Road.; 0 213 Comment
  JROH4621  Calochortus argillosus John H. Thomas 1973-6-10 16818 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD39099  Calochortus coeruleus Marie Cummings 1933-5-23 114 San Mateo La Honda. Comment
  JROH4635  Calochortus luteus John H. Thomas 1975-6-5 17941 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack on serpentine and non-serpentine soils Comment
  CAS-BOT-BC491979  Calochortus luteus Otto M. Sokol 1953-5-29 113 San Mateo Near Sharon Estate, along Sand Hill Road Comment
  CAS-BOT-BC491988  Calochortus luteus J. H. Thomas 1960-6-1 8770 San Mateo Dry road bank between Stanford and Searsville along Sand Hill Road. Comment
  SEINET12044558  Calochortus venustus L. S. Rose 1931-1 s.n. San Mateo Redwood City 610 Comment
  JROH556  Calycadenia multiglandulosa John H. Thomas 1958-11-22 7506 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH566  Calycadenia multiglandulosa John H. Thomas 1974-4-25 17207 San Mateo Jasper Ridge Biological Preserve, Stanford University 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-BC224665  Calystegia purpurata subsp. purpurata Theo. C. Zschokke 1903-7-10 s.n. San Mateo Goat Ranch Road, Corte de [Corte] Madera Creek Comment
  CAS-BOT-BC224647  Calystegia purpurata subsp. purpurata Mary Helen Kelson 1956-6-2 229 San Mateo Page Mill Road, 3 miles from Skyline Boulevard 213 Comment
  SD38590  Calystegia soldanella Edith A. Purer 1933-7-27 5377 San Mateo 2.0 miles south of Pigeon Point. Comment
  CAS-BOT-BC436440  Calystegia subacaulis George Oberlander 1950-4-16 739 San Mateo San Francisco Watershed Reserve, south boundary Comment
  CHSC447  Calystegia subacaulis V. Holt 1943-4-21 San Mateo 6 Comment
  SD38400  Calystegia subacaulis Janet Turner 1933-5-30 3723 San Mateo Between Skyline and Half Moon Bay. Comment
  SD38402  Calystegia subacaulis Edith A. Purer 1933-5-30 3641 San Mateo Spring Valley Lakes. Comment
  JROH1845  Calystegia subacaulis subsp. subacaulis John H. Thomas 1967-5-10 12858 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA449044  Camissonia ovata Glenn A. Gorelick 1967-4-20 s.n. San Mateo Overlooking Daly City, near San Francisco. Comment
  CHSC22126  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Robert A. Schlising; Glenn Keator 1962-2-3 2042 San Mateo Coast Ranges. Sand dunes along Hwy 1, 3.9 mi N of jct with Bonnie Doon Road. Comment
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Sep 4 2011
  UC306520  Camissoniopsis cheiranthifolia subsp. cheiranthifolia A. D. E. Elmer July 1903 4942 San Mateo San Pedro Comment
  RSA95472  Campanula prenanthoides L. S. Rose 1953-7-27 53054 San Mateo Kings Mountain, Redwood Forest. 610 Comment
  SEINET10463189  Campanula prenanthoides Gray 1872-1 GRAY s.n. San Mateo SANTA CRUZ REDWOODS Comment
  SEINET10463364  Campanula prenanthoides Elvander 1970-7-5 ELVANDER 287 San Mateo 1 mile on Water Pant road from intersection with entrance to Butano State Park. Sandy loam, redwood forest. 152 Comment
  SEINET10840319  Campanula prenanthoides Ira L. Wiggins 1929-7-4 Wiggins 3779 San Mateo Moist ravine 4 miles west of La Honda on hill road to Pescadero Beach Comment
  CAS-BOT-BC37662  Cardamine californica W. R. Dudley 1903-5-9 s.n. San Mateo Santa Cruz Peninsula. Iverson's near Peters Creek. Comment
  CAS-BOT-BC37677  Cardamine californica A. D. E. Elmer 1903-4-1 4468 San Mateo Portola. Comment
  CAS-BOT-BC37691  Cardamine californica Alice Eastwood 1933-4-30 s.n. San Mateo Lake Pilarcitos. Comment
  JROH1481  Cardamine californica D. D. Davis 1903-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  SEINET12004997  Cardamine integrifolia Patterson 1907-1 s.n. San Mateo Kings Mt., Santa Cruz Mountain peninsula Comment
  CAS-BOT-BC37985  Cardamine oligosperma John H. Thomas 1961-5-14 9372 San Mateo San Francisco Watershed Reserve. Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. 152 Comment
  CAS-BOT-BC384844  Cardionema ramosissimum Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo San Bruno Mountain. In old quarry in Colma Canyon Comment
  JROH582  Carduus pycnocephalus subsp. pycnocephalus John Hunter Thomas 1989-5-9 24708 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA6896  Carduus tenuiflorus D. G. Kelch, B. G. Baldwin 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  JEPS48963  Carex amplifolia James G. Daly 1934-1 424 San Mateo upper Corte de Madera Canyon Comment
  JROH4325  Carex bolanderi John Rawlings 2010-5-19 1050 B San Mateo Jasper Ridge Biological Preserve, Stanford University; 5 yards north (lakeside) of Leonard's Bridge 106 Comment
  CAS-BOT-BC18931  Carex densa George Oberlander 1950-5-6 917 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon. Comment
  CAS-BOT-BC18936  Carex densa Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5246 San Mateo Half Moon Bay. Comment
  CAS-BOT-BC18945  Carex densa LeRoy Abrams 1902-5-11 2444 San Mateo Crystal Springs. Comment
  JROH4331  Carex densa John Hunter Thomas 1977-6-16 18738 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC824431  Carex densa Lewis S. Rose 1935-5-4 35152 San Mateo Skyline Blvd. w San Bruno; Skyline Blvd. Comment
  CAS-BOT-BC18933  Carex densa Lewis S. Rose 1936-5-24 36299 San Mateo East of Burlingame. 60 Comment
  CAS-BOT-BC227875  Carex densa Elizabeth McClintock; Paul Reeberg 1989-4-11 s.n. San Mateo San Bruno Mountains. In lower Randoph Ravine 53 Comment
  UC823331  Carex densa Lewis S. Rose 1937-5-16 37279 San Mateo S San Francisco 15 Comment
  JROH4336  Carex divulsa subsp. divulsa John Rawlings 2013-5-7 1175 San Mateo Jasper Ridge Biological Preserve, Stanford University; on the lake side and near east end of Leonard's Bridge on the bank of the channel 107 Comment
  SEINET3128116  Carex dudleyi L. S. Rose 1939-4-14 39064 San Mateo South San Francisco 15 Comment
  CAS-BOT-BC146604  Carex gynodynama Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5255 San Mateo Pescadero Comment
  CAS-BOT-BC21812  Carex harfordii George Thomas Oberlander 1950-4-23 847 San Mateo Cahill Ridge. Comment
  POM248613  Carex harfordii J. T. Howell 1938-5-1 13781 San Mateo Near South San Francisco. Comment
  RSA789960  Carex harfordii Peter Rubtzoff 1975-5-21 7968 San Mateo San Bruno Mtns: Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC119443  Carex nudata Charles Piper Smith 1908-4-13 1399 San Mateo Stanford Univ. San Francisquito Creek. Comment
  CAS-BOT-BC119346  Carex obnupta W. R. Dudley 1896-4-18 s.n. San Mateo Pebble Peach Pasture, Pescadearo, Santa Cruz Mountain. Comment
  CAS-BOT-BC176400  Carex obnupta Peter Rubtzoff 1976-6-30 8711 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  RSA796405  Carex obnupta Peter Rubtzoff, Roman Gankin 1975-5-21 7965 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction Comment
  CHSC109976  Carex pendula John Rawlings 2011-7-3 San Mateo 200 m E of junction of Purisima Creek Trail and path to Judson Redwood Grove, about 0.5 air miles E of Higgins Canyon Road, Purisima Creek Redwoods Open Space Preserve, W slope of Santa Cruz Mountains, San Francisco Bay (SnFrB). 165 Comment
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Jan 26 2018
  CAS-BOT-BC117646  Carex serratodens LeRoy Abrams 1902-5-4 2425 San Mateo Woodside. Comment
  SJSU15817  Carex serratodens John Rawlings, Ken Hickman 2016-7-21 1902 San Mateo Serpentine seep area (Fountain thistle seep) up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  CAS-BOT-BC117652  Carex serratodens Elizabeth McClintock 1978-3-25 s.n. San Mateo Gilmore McDowell property, Woodside. Comment
  SEINET7575211 Image available Carex serratodens Lewis S. Rose 1936-5-28 36304 San Mateo Emerald L, W of Redwood City. 91 Comment
  UC618444  Carex subbracteata John Thomas Howell 1938-5-1 13783 San Mateo near South San Francisco Comment
  UC836142  Carex subbracteata Alice Eastwood, John Thomas Howell 1937-5-7 4326 San Mateo Visitacion Valley Comment
  RSA100974  Carex subbracteata G. Oberlander 1950-4-22 633 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve. Comment
  SEINET10750023  Carex subbracteata John Thomas Howell 1938-5-1 Howell 13783 San Mateo Near South San Francisco. Comment
  CAS-BOT-BC116826  Carex subbracteata var. subbracteata Walter Knight; Irja Knight 1965-6-20 s.n. San Mateo Crystal Cave Canyon in wet spot. Comment
  CAS-BOT-BC115514  Carex tumulicola W. R. Dudley 1894-5-1 s.n. San Mateo Between Woodside and Crystal Springs. Comment
  CAS-BOT-BC230112  Carpobrotus chilensis John H. Thomas 1963-5-20 10142 San Mateo Ano [Ano] Nuevo Island, about 0.5 mile off shore and about 20 miles NW of Santa Cruz Comment
  RSA15335  Carpobrotus chilensis C. B. Wolf 1927-1-29 146 San Mateo Pescadero Comment
  UCSB1817  Carpobrotus chilensis Walker, Clifford 1954-4-20 San Mateo 50 yards from ocean, 1 mile south of Half Moon Bay Comment
  UCSC007729  Carpobrotus chilensis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC249185  Castilleja affinis James McMurphy 1907-5-19 s.n. San Mateo Coal Mine Ridge Comment
  LA209094  Castilleja affinis A. A. Heller; 1907-4-20 8442 San Mateo Near Lake Merced 60 Comment
  RSA187415  Castilleja affinis John H. Thomas 1950-3-19 1305 San Mateo Near intersection of Coast Hwy and road to Swanton, 1 mile SE of mouth of Waddell Creek. 30 Comment
  SEINET12288583  Castilleja affinis Unknown 1932-1 8976 San Mateo Gov. Rolph Estate 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
  JEPS6925  Castilleja affinis subsp. affinis Rimo Bacigalupi with G. Thomas Robbins 1954-6-18 4552 San Mateo 0.25 mi below Portola State Park road junction with the Alpine Road (along road to Portola State Park) Comment
  JEPS88834  Castilleja affinis subsp. affinis T. I. Chuang 1991-7-20 7880 San Mateo hill just s Rockaway Beach Comment
  JROH3945  Castilleja affinis subsp. affinis John Hunter Thomas 1978-4-20 19091 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3947  Castilleja affinis subsp. affinis John H. Thomas 1981-4-23 20467 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS47393  Castilleja affinis subsp. affinis L. R. Heckard 1964-6-24 1400 San Mateo along upper part of Monterey Road Pacifica Comment
  UCSC007730  Castilleja affinis subsp. affinis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  UCSC005957  Castilleja ambigua Randall Morgan 1995-6-6 2724 San Mateo Common at Bean Hollow State Beach Comment
  POM15341A  Castilleja ambigua subsp. ambigua Copeland 1903-6-3 3298 San Mateo Montara Point. Comment
  SD88447  Castilleja ambigua subsp. ambigua Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of Half Moon Bay Comment
  JROH3955  Castilleja attenuata John H. Thomas 1967-5-10 12857 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3957  Castilleja attenuata John H. Thomas 1974-4-13 17155 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3963  Castilleja attenuata John Hunter Thomas 1978-4-28 19159 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UCR136714  Castilleja densiflora L. S. Rose 1948-5-16 48113 San Mateo San Francisco Bay Region, Emerald Lake, hills west of Redwood City 152 Comment
  JROH3981  Castilleja densiflora subsp. densiflora John Hunter Thomas 1981-4-23 20472 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3986  Castilleja densiflora subsp. densiflora John Hunter Thomas 1986-5-8 24026 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1012339  Castilleja exserta F. W. Pennell and D. D. Keck 1940-5-15 25418 San Mateo e of upper Crystal Springs Lake (sw of San Mateo); Crystal Springs Lake 60 Comment
  UC406904  Castilleja exserta subsp. latifolia David D. Keck 1927-6-10 395 San Mateo Montara Point; Radio Station 0 Comment
  SD38143  Castilleja foliolosa Delzie Demaree 1932-4-9 8973 San Mateo Dry hillsides. Gov. Rolf Estate Comment
  SEINET12288674  Castilleja foliolosa L. R. Abrams 1904-1 10 San Mateo Santa Cruz Peninsula, near Crystal Springs Lakes, Santa Cruz Mts 152 Comment
  POM204428  Castilleja franciscana E. C. Sutliffe 1933-5-17 s.n. San Mateo Skyline Boulevard. Comment
  CAS-BOT-BC243829  Castilleja latifolia Otto M. Sokol 1953-5-9 86 San Mateo Just north of Pescadero Creek on coast road. Comment
  CAS-BOT-BC243835  Castilleja latifolia Peter H. Raven 1950-4-16 1782 San Mateo Colma Canyon, San Bruno Mts. 182 Comment
  CAS-BOT-BC243841  Castilleja latifolia John Thomas Howell 1933-4-9 10969 San Mateo Coastal hillside between Pescadero and Pigeon Pt. Comment
  SBBG33415  Castilleja rubicundula subsp. lithospermoides A. D. E. Elmer -Jun-1903 4420 San Mateo Crystal Springs Lake Comment
  SD37772  Castilleja rubicundula subsp. lithospermoides Marie Cummings 1933-5-23 3712 San Mateo Spring Valley Lakes Comment
  JEPS103884  Castilleja subinclusa T. I. Chuang and F. M. Chuang 1991-7-1 7850 San Mateo 0.8 miles N of San Gregorio Beach. Comment
  JEPS18907  Castilleja subinclusa subsp. franciscana Rimo Bacigalupi with G. Thomas Robbins 1955-8-4 5447 San Mateo just n Montara Point Lighthouse (at the town of Montara); Montara Comment
  CAS-BOT-BC32579  Castilleja wightii Adolph Daniel Edward Elmer 1903-7-1 4761 San Mateo San Pedro Comment
  JEPS15591  Castilleja wightii Rimo Bacigalupi with J. R. Sweeney 1954-8-3 4735 San Mateo along upper slopes Edgemar Road (nw San Mateo County) 100 Comment
  JEPS19719  Castilleja wightii Peter H. Raven 1957-6-24 10965 San Mateo just s Linda Mar Comment
  JEPS47428  Castilleja wightii L. R. Heckard 1964-7-26 1426 San Mateo 0.4 mi up Lobitos Creek road from Verde Road on old highway (Lobitos Creek road, above Lobitos Creek valley) Comment
  JEPS60421  Castilleja wightii T. I. Chuang and F. M. Chuang 1969-6-21 6662 a San Mateo about 2 mi s Half Moon Bay road junction and Skyline Boulevard 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
  JEPS8516  Castilleja wightii Elsie M. Zeile 1925-3-22 San Mateo Colma Canyon Comment
  NY68181  Castilleja wightii A. D. E. Elmer 07 1903 4761 San Mateo San Pedro Comment
  UC1327236  Castilleja wightii John T. Doyen 1966-3-28 37 San Mateo San Bruno Mountains; near Radio Towers on top Comment
  UC1537582  Castilleja wightii Gordon H. True Jr. 1936-6-14 510 San Mateo 1 mi from Skyline Blvd. (on Salada Beach Road) 182 Comment
  UC198265  Castilleja wightii Katharine Brandegee 1917-7-22 San Mateo Mussel Rock Station, Ocean Shore Railway Comment
  UCR71440  Castilleja wightii L. R. Heckard, Rimo Bacigalupi 1963-7-2 1332 San Mateo Along old county road over San Pedro and Montara Mtns; N flank of San Pedro Mt. 244 Comment
  RSA10286  Castilleja wightii H. A. Barker 1927-5-14 668 San Mateo North of Half Moon Bay. Comment
  SEINET884614 Image available Castilleja wightii A. D. E. Elmer 1903-1 4761 San Mateo San Pedro. Comment
  CAS-BOT-BC47931  Ceanothus Fred Hemphill 1973-4-15 675 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC51600  Ceanothus oliganthus var. sorediatus W. R. Dudley 1893-4-1 s.n. San Mateo Foothills - McDuough Place near portola Comment
  CAS-BOT-BC51237  Ceanothus papillosus David D. Keck 1932-5-11 1774 San Mateo East side of Kings Mountain, on Kings Mountain Road 502 Comment
  CAS-BOT-BC51851  Ceanothus papillosus W. R. Dudley 1902-5-17 s.n. San Mateo Kings Mountain Road Comment
  CAS-BOT-BC52281  Ceanothus thyrsiflorus Elizabeth McClintock 1966-5-1 s.n. San Mateo unspecified Comment
  CAS-BOT-BC52283  Ceanothus thyrsiflorus George Oberlander 1950-4-23 859 San Mateo on Sawyer Ridge Comment
  CAS-BOT-BC52286  Ceanothus thyrsiflorus Brandegee 1890-4-1 19 San Mateo San Gregorio Comment
  RSA130955  Ceanothus thyrsiflorus James I. McMurphy 1906-5-8 12 San Mateo Woodside Santa Cruz Mts. 122 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
  SJSU5728  Ceanothus thyrsiflorus L. S. Rose 1963-4-27 63004 San Mateo La Honda 121 Comment
  UCR12018  Ceanothus thyrsiflorus Coleta A. Lawler 1964-4-19 54 San Mateo 5 mi. E Half Moon Bay: on Half Bay Rd., 1.1 mi W jct Skyline Drive. On north side of road 91 Comment
  JEPS21637  Centaurea calcitrapa John H. Thomas 1955-4-6 4831 San Mateo e facing slope of San Bruno Mountain, just n of South San Francisco San Bruno Mountain, South San Francisco 30 Comment
  JROH594  Centaurea calcitrapa John Hunter Thomas 1989-5-9 24702 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC274597  Centaurea calcitrapa H. L. Mason 1921-10-1 s.n. San Mateo County Hospital, Belmont - Crystal Springs Rd. Comment
  CDA35517  Centaurea calcitrapa Ed Finley 1986-9-3 s.n. San Mateo Near Pilarcitos Lake. 0 Comment
  RSA101008  Centaurea melitensis G. Oberlander 1950-5-6 895 San Mateo Near San Anreas Lake, San Francisco Watershed Reserv Comment
  JROH613  Centaurea solstitialis John Hunter Thomas 1992-7-24 25387 A San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat ramp Comment
  CAS-BOT-BC277229  Centaurea solstitialis Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  CDA38622  Centaurea stoebe subsp. micranthos D. Petersen 2012-9-17 PDR# MVAP 06098624 San Mateo Hillsborough; off of Polhemus Road; south shaft of New Crystal Springs Bypass Tunnel Project's muck disposal site (aka the upper terrace). 0 Comment
  POM296667  Centaurium davyi L. S. Rose 1941-6-19 41280 San Mateo Kings Mountain Road, three miles west of Woodside. 183 Comment
  RSA22960  Centaurium davyi L. R. Abrams, I. L. Wiggins 1939-6-3 423 San Mateo Ano Nuevo Point. Comment
  SJSU15406  Centaurium tenuiflorum Toni Corelli 2011-8-25 716 a San Mateo Pescadero State Beach and Marsh Natural Preserve, Round Hill Trail at the end of Water Lane Road 12 Comment
  CAS-BOT-BC272816  Centromadia parryi subsp. parryi David D. Keck 1931-10-5 1291 San Mateo Salada Beach Comment
  HSC5817  Centromadia pungens L. S. Rose 1965-9-20 65106 San Mateo Burlingame, Trousdale Dr. and California Dr. 9 Comment
  SD30855  Centromadia pungens subsp. pungens Edith A. Purer 1933-8-4 5399 San Mateo Along Bayshore Highway Comment
  SJSU5744  Centromadia pungens subsp. pungens L. S. Rose 1965-9-20 65106 San Mateo Burlingame, Trousdale Dr. & California Dr. 9 Comment
  RSA788848  Cerastium fontanum subsp. vulgare Peter Rubtzoff 1977-11-24 9141 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  JROH1688  Cerastium glomeratum John H. Thomas 1957-4-16 6649 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1692  Cerastium glomeratum John H. Thomas 1969-4-20 14897 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC388394  Cerastium glomeratum Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountain. South Power Line Ridge Comment
  JROH148  Ceratophyllum demersum John H. Thomas 1974-6-30 17464 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA112373  Cercocarpus betuloides James I. McMurphy 1906-4-4 18 San Mateo Los Francos Creek, Santa Cruz Mts Comment
  SEINET11914804  Cercocarpus betuloides Unknown 1932-1 8945 San Mateo Los Francos Woods Comment
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Nov 1 2021
  CAS-BOT-BC135475  Cercocarpus betuloides var. betuloides Margaret A. Barry 1937-4-21 11 San Mateo Woods on Coal Mine Ridge Comment
  UCSC007731  Chenopodium californicum Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  POM279724  Chenopodium murale Lyman Benson 1937-6-27 8394 San Mateo Moss Beach. 3 Comment
  UCSB61628  Chenopodium murale True, Jr., Gordon 1937-10-16 San Mateo Near Thornton Beach 3 Comment
  RSA478562  Chenopodium rubrum L. M. Booth 1932-10-29 2116 San Mateo s. San Francisco. 5 Comment
  SEINET12044203  Chlorogalum pomeridianum L. S. Rose 1934-1 34256 San Mateo Crystal Springs Lake Comment
  CDA19860  Chondrilla juncea D. Pendleton 2002-5-2 PDR 065847 San Mateo San Francisco Bay Area; Belmont Ave & El Camino Real, San Carlos. 0 Comment
  CAS-BOT-BC191596  Chorizanthe cuspidata var. cuspidata Elizabeth McClintock; Paul Reeberg 1988-6-7 s.n. San Mateo lower Colma Canyon. San Bruno Mountains Comment
  UC162391  Chorizanthe cuspidata var. cuspidata A. A. Heller 1906-6-8 8383 San Mateo near Ocean View, San Francisco; near Ocean View, San Francisco Comment
  UC202786  Chorizanthe cuspidata var. cuspidata A. D. E. Elmer May, 1903 4793 San Mateo San Pedro Comment
  CAS-BOT-BC32865  Chorizanthe cuspidata var. marginata Adolph Daniel Edward Elmer 1903-5-1 4828 San Mateo San Pedro Comment
  UC1135216  Chrysolepis chrysophylla var. minor C. M. Belshaw 1935-1-25 1468 San Mateo 2.5 mi nw Sierra Moreno Peak; Santa Cruz Quad. 457 Comment
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Oct 3 2011
  JROH2587  Cicendia quadrangularis John H. Thomas 1974-4-4 17086 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA187410  Cicendia quadrangularis John H. Thomas 1966-4-2 11545 San Mateo Jasper Ridge Biological Experimental Area, about five miles southwest of Palo Alto. Along road at the Searsville end. Comment
  JROH2585  Cicendia quadrangularis John H. Thomas 1968-4-19 14301 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC285234  Cichorium intybus Elizabeth McClintock; Paul Reeberg 1988-4-7 s.n. San Mateo San Bruno Mountains. In Guadalupe Valley Comment
  CAS-BOT-BC277887  Cirsium brevistylum David D. Keck 1934-7-7 2932 San Mateo Kings Mountain, west of summit 579 Comment
  CAS-BOT-BC277890  Cirsium brevistylum A. D. E. Elmer 1903-6-1 4277 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC100938  Cirsium fontinale var. fontinale John Thomas Howell 1932-10-19 10852 San Mateo Crystal Springs Lake Comment
  CDA1230  Cirsium fontinale var. fontinale T. C. Fuller 1970-5-13 19532 -B San Mateo East side of I-280, 100 yds. s. of junction Hwy 92 w. to Half Moon Bay. E slope above Crystal Springs Reservoir. Comment
  SEINET5506166  Cirsium fontinale var. fontinale John Thomas Howell San Mateo Comment
  JEPS59212  Cirsium occidentale var. occidentale J. Burtt Davy 1895-4-20 1084 San Mateo San Mateo Creek Comment
  RSA176529  Cirsium occidentale var. venustum John H. Thomas 1963-6-23 10169 San Mateo Jasper Ridge Biological Experimental Area, about 5 mi SW of Palo Alto. Along road at Westridge end of ridge Comment
  CAS-BOT-BC280134  Cirsium occidentale var. venustum C. F. Leitholt 1894-7-28 s.n. San Mateo Buckhorn Ranch, near Portola Comment
  CAS-BOT-BC280503  Cirsium quercetorum Alice Eastwood 1912-6-3 204 San Mateo Granada Comment
  CAS-BOT-BC280520  Cirsium quercetorum A. D. E. Elmer 1903-6-1 4290 San Mateo Crystal Springs Lake Comment
  JEPS89476  Cirsium quercetorum Dean W. Taylor 1989-8-1 10416 San Mateo Montara State Beach along Highway 1 at junction with road to North Peak of Montara Mountain Montara State Beach; Santa Cruz Mountains, , Hwy 1 67 Comment
  UC178910  Cirsium quercetorum Katharine Brandegee 1905-1 San Mateo Moss Beach Comment
  CAS-BOT-BC280514  Cirsium quercetorum Javier Penalosa 1963-3-30 2703 San Mateo San Bruno Mountain. North of Randolph Ave. at Hillside Blvd. in SSF 91 Comment
  CAS-BOT-BC280518  Cirsium quercetorum John Thomas Howell 1939-6-16 14740 San Mateo Near San Andreas Lake Comment
  JROH640  Cirsium vulgare John Hunter Thomas 1977-6-16 18799 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC285864  Cirsium vulgare John H. Thomas 1963-7-19 10198 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  SBBG14780  Cirsium vulgare P. H. Raven 1961-8-24 16585 San Mateo E side of Crystal Springs Lakes Comment
  RSA296779  Clarkia cylindrica subsp. cylindrica Clark L. Miller 1978-6-15 Feb- 65 San Mateo 6 miles south of Half Moon Bay, off Highway 1 of Verde Road 61 Comment
  CAS-BOT-BC163971  Clarkia purpurea subsp. quadrivulnera W. R. Dudley 1900-5-19 s.n. San Mateo One mile West of summit of La Honda Road 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
  CAS-BOT-BC165148  Clarkia rubicunda Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo Lower part of Colma Canyon Comment
  CAS-BOT-BC165157  Clarkia rubicunda Phipps 1922-7-1 s.n. San Mateo Tunitas Creek Comment
  CHSC27729  Clarkia rubicunda Coleta Lawler 1978-6-11 295 San Mateo W of Saratoga and SW of Los Altos; on Alpine Road, 0.5 miles southwest of State Hwy 35 (Skyline Blvd); along road cut. 304 Comment
  JEPS43631  Clarkia rubicunda Dr. L. M. Newlon 1921-1 251 San Mateo between Salada and Mussel Rock Comment
  JROH3023  Clarkia rubicunda John Hunter Thomas 1977-6-7 18730 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3029  Clarkia rubicunda John Hunter Thomas 1982-7-8 21080 San Mateo Jasper Ridge Biological Preserve, Stanford University; west end of dam Comment
  JROH3032  Clarkia rubicunda John Hunter Thomas 1983-7-7 22815 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  RSA113601  Clarkia rubicunda Peter H. Raven 1957-6-24 10972 San Mateo North of the Light House, Pigeon Point Comment
  UC625368  Clarkia rubicunda Ira L. Wiggins 1938-7-9 8933 San Mateo about 1/2 mi n Light House; Pigeon Point Comment
  CAS-BOT-BC165126  Clarkia rubicunda L. R. Abrams 1907-8-25 s.n. San Mateo Between [Pecadero] Pescadero and Half Moon Bay Comment
  CAS-BOT-BC165144  Clarkia rubicunda Elizabeth McClintock 1965-6-13 s.n. San Mateo Lower slope on south side above Olivet Cemetery Comment
  CAS-BOT-BC165151  Clarkia rubicunda Phillip C. Wheeler 1965-7-8 s.n. San Mateo Quarry Canyon Comment
  CAS-BOT-BC165172  Clarkia rubicunda W. R. Dudley 1894-5-30 s.n. San Mateo Near Redwood City Comment
  RSA18290  Clarkia rubicunda Carl B. Wolf 1927-6-21 427 San Mateo East slope of Kings Mt. Comment
  SEINET8726157 Image available Clarkia rubicunda Peter H. Raven 1957-1 10954 San Mateo State Highway 5 (Skyline Boulevard), 2.6 miles north of Redwood City turnoff, on serpentine. Comment
  RSA73309  Clarkia rubicunda subsp. blasdalei F. W. Peirson 1925-9-13 6423 San Mateo Rockaway beach Comment
  RSA209471  Clarkia rubicunda subsp. blasdalei R. Setzer 1969-7-18 3366 San Mateo Montara Beach Comment
  UCSC007594  Clarkia rubicunda subsp. blasdalei Randall Morgan 2010-5-29 5038 San Mateo Rockaway Beach Comment
  CAS-BOT-BC439290  Claytonia exigua subsp. exigua H. A. Dutton 1900-2-25 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  JROH5709  Claytonia parviflora subsp. parviflora John Rawlings 2015-3-15 1348 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 8 110 Comment
  JROH5734  Claytonia parviflora subsp. parviflora John Rawlings 2015-4-5 1654 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near base of scree slope in old quarry off of Trail 12 111 Comment
  CAS-BOT-BC439591  Claytonia parviflora subsp. parviflora John H. Thomas 1963-5-20 10097 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC439993  Claytonia perfoliata subsp. mexicana George Oberlander 1949-3-2 18 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  JROH3342  Claytonia perfoliata subsp. perfoliata Daniel Cohen 1953-4-11 20 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3344  Claytonia perfoliata subsp. perfoliata John H. Thomas 1963-5-15 10088 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3350  Claytonia perfoliata subsp. perfoliata John Hunter Thomas 1981-4-5 20288 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek Comment
  JROH3352  Claytonia perfoliata subsp. perfoliata John Hunter Thomas 1983-4-2 21302 San Mateo Jasper Ridge Biological Preserve, Stanford University; by Rattlesnake Rock Comment
  JROH3405  Clematis lasiantha John H. Thomas 1958-5-10 7160 San Mateo Jasper Ridge Biological Preserve, Stanford University. Chaparral at west end of ridge Comment
  JROH3418  Clematis lasiantha John Hunter Thomas 1986-4-10 23955 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2873  Clinopodium douglasii John H. Thomas 1970-1-1 15499 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC499369  Clintonia andrewsiana W. R. Dudley 1915-9-1 s.n. San Mateo El Corte de Madera Creek Comment
  CAS-BOT-BC499398  Clintonia andrewsiana W. R. Dudley 1893-5-27 s.n. San Mateo Between Woodside and Summit Springs Comment
  CAS-BOT-BC499401  Clintonia andrewsiana W. R. Dudley 1989-6-8 s.n. San Mateo Road near Alpine School House, Black mt. Comment
  SEINET8495448 Image available Clintonia andrewsiana L. M. Henry, M. E. Springer 1946-7-21 369 San Mateo La Honda Comment
  UC729634  Collinsia heterophylla Carl B. Wolf 1929-5-17 3714 San Mateo 1 mi w of Skyline Boulevard (on Alpine Road); Alpine Road 304 Comment
  CAS-BOT-BC240921  Collinsia multicolor Alice Eastwood 1918-5-4 6883 San Mateo San Bruno hills, San Francisco Comment
  CAS-BOT-BC240933  Collinsia multicolor Walter Knight; Irja Knight 1965-4-4 1014 San Mateo San Bruno Mountain. Bitter Cherry Ravine Comment
  SD120833  Collinsia multicolor A. Paul Martin 1957-5-23 San Mateo Northern San mateo County; upper edge of town of Brisbane, southeastern slopes of San Bruno Hills 198 Comment
  UC765656  Collinsia multicolor R. F. Hoover 1941-4-23 4901 San Mateo San Mateo Creek below Crystal Springs Dam Comment
  JROH4019  Collinsia sparsiflora var. collina John H. Thomas 1976-4-3 18078 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM50569  Collinsia sparsiflora var. collina L. R. Abrams 1902-4-13 2322 San Mateo San Andreas Lake. Comment
  JEPS71039  Collomia heterophylla P. B. Kennedy May, 1917 San Mateo Comment
  RSA59640  Collomia heterophylla Verne Grant, Alva Grant 1950-5-19 8902 San Mateo On w. side of Kings Mt. 1/2 mile w. of Skyline road on Tunitas Creek road. Comment
  RSA681681  Comarostaphylis diversifolia subsp. diversifolia Annuschka Deb 1989-8-18 379 San Mateo Woodside. Comment
  UC1348938  Conioselinum pacificum Robert F. Thorne and P. Everett 1963-6-9 32237 San Mateo top of San Bruno Mountain 335 Comment
  RSA0059777  Convolvulus subacaulis A. D. E. Elmer 1903-06 4826 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC286212  Conyza canadensis J. H. Thomas 1963-7-19 10180 A San Mateo Ano Nuevo Point Comment
  UC1080552  Corallorhiza maculata S. S. Tillett and I. Sternback 1956-6-25 546 San Mateo along ridge on border of Middleton property and Portola State Park (s side of road to park) 396 Comment
  JEPS64360  Corallorhiza striata Inez Smith Mar. 1915 San Mateo Hillsboro Comment
  JEPS4612  Cordylanthus pilosus subsp. pilosus L. S. Rose 1941-8-9 41362 San Mateo Woodside 60 Comment
  CAS-BOT-BC101475  Corethrogyne filaginifolia J. H. Thomas 1958-6-11 7221 San Mateo About 4.3 miles due east of Belmont near Crystal Springs Reservoir 91 Comment
  CAS-BOT-BC101480  Corethrogyne filaginifolia J. I. McMurphy 1906-5-8 s.n. San Mateo Between Crystal Springs & Belmont Grade Comment
  CAS-BOT-BC209819  Cornus glabrata Margaret A. Barry 1938-5-6 s.n. San Mateo Los Trancos Creek near Coal Mine Ridge Comment
  JROH1863  Cornus glabrata D. E. Breedlove 1971-5-31 19372 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  CAS-BOT-BC210357  Cornus sericea Margaret A. Barry 1938-5-6 s.n. San Mateo Los Trancos Creek near Coal Mine Ridge Comment
  JROH1881  Cornus sericea subsp. sericea John Hunter Thomas 1991-5-2 25014 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  CAS-BOT-BC539291  Cortaderia selloana John Rawlings; Ken Hickman 2016-10-15 1951 San Mateo Caltrans right-of-way upslope from Hwy 92 W onramp to Hwy 280 N 122 Comment
  UC1206477  Corylus californica Le Roy Abrams 1902-3-16 2271 San Mateo Kings Mountain Comment
  CAS-BOT-BC180276  Corylus cornuta subsp. californica Walter Knight; Irja Knight 1965-5-15 1110 San Mateo Upper Bitter Cherry Ravine. San Bruno Mountain Comment
  CAS-BOT-BC180281  Corylus cornuta subsp. californica Josephine D. Randall 1907-4-27 112 San Mateo Colma King's Mt. Road above Woodside. Santa Cruz Peninsula Comment
  CAS-BOT-BC180362  Corylus cornuta subsp. californica Le Roy Abrams 1902-3-6 2271 San Mateo Kings Mountain Comment
  CAS-BOT-BC180369  Corylus cornuta subsp. californica David D. Keck 1932-2-12 1362 San Mateo La Honda road, E slope of Coast Range above Searsville Lake 304 Comment
  RSA481440  Corylus cornuta var. californica Paul C. Silva 1948-1-31 2621 San Mateo Skyline Blvd. just north of junction of Alpine Creek Road. 701 Comment
  CAS-BOT-BC452290  Cotoneaster pannosus Elizabeth McClintock; Paul Reeberg 1988-5-30 s.n. San Mateo San Bruno Mountain; Colma Canyon Comment
  JROH3638  Cotoneaster pannosus John Hunter Thomas 1980-4-24 19896 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC287303  Cotula australis W. R. Dudley 1909-10-4 s.n. San Mateo North pond near Mussel Rock Comment
  CHSC22928  Cotula coronopifolia Robert A. Schlising; Glenn Keator 1962-2-3 2047 San Mateo California Coast Ranges. Along Gazos Creek at Highway 1. Comment
  CHSC57065  Cotula coronopifolia Steven Triano 1988-5-24 202 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  CAS-BOT-BC291449  Cotula coronopifolia W. R. Dudley 1897-5-1 s.n. San Mateo South San Francisco Comment
  CAS-BOT-BC291463  Cotula coronopifolia Catherine A. Toschi 1963-2-23 63 :33 San Mateo North slope San Bruno Mountains above Crocker Avenue 152 Comment
  JEPS10206  Crassula aquatica Rimo Bacigalupi with G. T. Robbins 1954-6-18 4561 San Mateo Point Ano Nuevo Comment
  RSA291922  Crassula aquatica Robert A. Norris 1981-11-7 4276 San Mateo Pond near Ano Nuevo Point. Comment
  UCD101809  Crassula aquatica Malcolm A. Nobs 1949-8-26 1580 San Mateo About 1 mile south of Half Moon Bay. Comment
  CAS-BOT-BC427832  Crassula connata John H. Thomas 1961-5-7 9260 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC427839  Crassula connata A. D. E. Elmer 1903-4-1 4719 San Mateo San Bruno Hills Comment
  JROH1886  Crassula connata D. E. Breedlove 1971-5-5 19322 San Mateo Jasper Ridge Biological Preserve, Stanford University; above San Francisquito Creek, 500 yards below Searsville Dam Comment
  JROH3653  Crataegus monogyna John H. Thomas 1967-6-1 12972 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC257358  Crepis capillaris Peter Rubtzoff 1988-6-9 9926 San Mateo San Bruno Mountains, near parking lot on east side of saddle area. Comment
  CDA21572  Crepis vesicaria subsp. taraxacifolia D. G. Kelch 2000-4-8 0 .139 San Mateo S of Woodside along I-680. Comment
  CHSC56524  Crepis vesicaria subsp. taraxacifolia Steven Triano 1988-5-24 175 San Mateo Along w side of Sand Hill Road 0.5 mi s of its jct. with Whiskey Hill Road and 2.5 mi s of Woodside. 121 Comment
  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
  CAS-BOT-BC389725  Croton setiger M. K. Wicksten 1971-7-20 148 San Mateo Huddart Pk. Comment
  JROH4999  Crypsis vaginiflora John H. Thomas 1976-10-16 18405 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry delta in Searsville Lake at the mouth of Corte de Madera Creek Comment
  UC78495  Cryptantha flaccida C. F. Baker 1902-4-6 468 San Mateo Crystal Springs Lake Comment
  JROH1373  Cryptantha microstachys John H. Thomas 1973-4-7 16518 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1379  Cryptantha microstachys John Hunter Thomas 1992-4-23 25164 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD84709  Cryptantha torreyana Robert E. Preston 2009-6-16 2688 b San Mateo Santa Cruz Mtns, ca. 0.5 mi NW of Waterman Gap. 347 Comment
  CAS-BOT-BC80655  Cupressus goveniana Hubert Jenkins 1903-7-27 s.n. San Mateo Butano Creek Comment
  CAS-BOT-BC80787  Cupressus macrocarpa J. H. Thomas 1960-8-28 8832 San Mateo Growing on steep road bank near Skyline Blvd. and Summit Drive to the west of Hillsborough. Comment
  CAS-BOT-BC257693  Cyclospermum leptophyllum Peter Rubtzoff 1988-6-25 9927 San Mateo Menlo Park, on Willow Road near Alma Street. Comment
  JEPS22116  Cynara cardunculus subsp. cardunculus J. H. Thomas 1958-10-21 7487 San Mateo near intersection of Bayshore Highway and Main Street; Redwood City Comment
  UC1195195  Cynara cardunculus subsp. cardunculus John H. Thomas 1960-6-25 8800 San Mateo between railroad tracks and El Camino Real (along creek running into Redwood Slough, near Maple Street, Redwood City); Redwood City, Redwood Slough 7 Comment
  CAS-BOT-BC190210  Cynodon dactylon Elizabeth McClintock; Paul Reeberg 1988-8-18 s.n. San Mateo San Bruno Mountains. Along railroad tracks near PG&E gasline west of Quarry. 45 Comment
  JROH5000  Cynodon dactylon John H. Thomas 1966-4-24 11581 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5002  Cynodon dactylon John H. Thomas 1967-11-5 14135 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA40498  Cynoglossum grande T. C. Fuller 1960-4-2 4082 San Mateo La Honda Rd., 1 mile north of La Honda. 0 Comment
  CAS-BOT-BC114453  Cyperus eragrostis David Daniels Keck 1931-8-6 1263 San Mateo Desiccated swamp near Searsville Lake. 75 Comment
  SEINET200022  Cyperus eragrostis Malcolm A. Nobs, S. Galen Smith 1949-8-26 1949 San Mateo 1 mile S of Half Moon Bay. 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
  CAS-BOT-BC133769  Cypripedium fasciculatum Miss. Barbara Donahoe; Miss. Louise Boyd 1923-4-18 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  JROH23  Cystopteris fragilis John Hunter Thomas 1992-4-23 25153 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Rattlesnake Rocks and along trail to redwoods Comment
  SD37828  Cytisus scoparius Marie Cummings 1933-5-23 3666 San Mateo La Honda Comment
  RSA78584  Cytisus scoparius P. A. Munz 1953-2-1 18273 San Mateo North of Scott Valley. Comment
  JROH5020  Dactylis glomerata John Hunter Thomas 1980-5-27 19990 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5024  Dactylis glomerata John Hunter Thomas 1985-5-21 23665 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near bridge Comment
  CAS-BOT-BC192234  Danthonia californica George Oberlander 1950-5-6 915 San Mateo San Francisco Watershed Reserve Comment
  CAS-BOT-BC192238  Danthonia californica L. R. A. 1902-5-11 2451 San Mateo Crystal Springs Comment
  JROH5039  Danthonia californica John H. Thomas 1970-4-28 15606 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM133419  Daucus pusillus E. B. Copeland 1903-6-8 3337 San Mateo Montara Point. Comment
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Jan 23 2011
  RSA176777  Daucus pusillus John H. Thomas 1963-5-20 10137 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  UC1536896  Deinandra corymbosa Gordon H. True Jr. 1936-6-14 501 San Mateo s Salada Beach (meadow in canyon) 365 Comment
  CAS-BOT-BC299202  Deinandra corymbosa subsp. corymbosa James I. McMurphy 1907-8-6 s.n. San Mateo Between Woodside and Crystal Springs Comment
  CAS-BOT-BC299209  Deinandra corymbosa subsp. corymbosa L. S. Rose 1941-8-9 41361 San Mateo Moss Beach 16 Comment
  CAS-BOT-BC299226  Deinandra corymbosa subsp. corymbosa Phillip C. Wheeler 1965-8-16 s.n. San Mateo Colma Canyon, San Bruno Mountain Comment
  CAS-BOT-BC300006  Deinandra lobbii W. R. Dudley 1898-11-4 s.n. San Mateo Los Trancos Road near Adelante Villa, vicinity of Standford University Comment
  CAS-BOT-BC292115  Delairea odorata J. H. Thomas 1958-12-18 7509 San Mateo Along Skyline Blvd. just west of San Bruno Comment
  JROH682  Delairea odorata Paul Heiple 2008-12-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; just inside Sand Hill Rd. fence well south of main gate (just south of abandoned telephone pole) Comment
  CAS-BOT-BC9214  Delphinium californicum Lewis Samuel Rose 1965-5-3 65058 San Mateo San Bruno Mountain, Colma Canyon 60 Comment
  JROH3425  Delphinium californicum subsp. californicum Arthur Spiegler 1952-5-10 93 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3427  Delphinium californicum subsp. californicum John H. Thomas 1967-5-31 12926 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3436  Delphinium californicum subsp. californicum John Hunter Thomas 1980-6-5 19999 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC10288  Delphinium hesperium Alice Eastwood 1912-6-10 320 San Mateo Crystal Springs Comment
  CAS-BOT-BC9873  Delphinium nudicaule D. E. Breedlove 1974-5-13 36210 San Mateo Pacifica, San Pedro Valley Park 152 Comment
  POM150556  Delphinium nudicaule C. F. Baker 1902-5-10 795 San Mateo Kings Mountain. Comment
  RSA18292  Delphinium nudicaule Carl B. Wolf 1927-6-21 425 San Mateo East slope of Kings Mt. 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
  POM270660  Delphinium patens Lyman Benson 1928-4-21 595 San Mateo Stanford University, Mt. Range: Santa Cruz; River: San Francisquito Creek. 91 Comment
  CAS-BOT-BC116525  Delphinium patens subsp. patens Josephine D. Randall 1908-3-22 s.n. San Mateo Corte de Madera Canon near Alpine Road Comment
  CAS-BOT-BC7928  Delphinium variegatum Adolph Daniel Edward Elmer 1903-5-1 4796 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC7941  Delphinium variegatum John Hunter Thomas 1974-4-11 17134 San Mateo SE of Canada Road and Edgewood Road, NW of Woodside 152 Comment
  CAS-BOT-BC116532  Delphinium variegatum P. F. Covel 1936-4-24 269 San Mateo Foot of Saratoga Grade Comment
  SEINET12099656  Delphinium variegatum M. T. Doutt 1931-1 s.n. San Mateo Skyline Blvd, W of Hillbrae Comment
  SJSU3145  Delphinium variegatum W. A. Dout 1957-5-10 20 San Mateo Emerald L district of Redwood City Comment
  POM148952  Delphinium variegatum subsp. variegatum A. D. E. Elmer 1903-05 s.n. San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC192633  Deschampsia danthonioides David D. Keck 1932-4-29 1448 San Mateo Redwood City Comment
  JROH5048  Deschampsia danthonioides John H. Thomas 1975-5-26 17917 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5058  Deschampsia elongata H. L. Mason 1921-5-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10900085  Deschampsia holciformis Edwin B. Copel 1903-6-17 Copeland 3306 a San Mateo Montara Point Comment
  UCSB44360  Dicentra formosa Brownell, K. 1979-3-27 San Mateo Gazoos Road, .6 miles east of Highway 1, near Butano State Park 76 Comment
  CAS-BOT-BC500890  Dichelostemma capitatum P R Hielborn 1920-5-16 223 San Mateo Plants of the Santa Cruz Mountain Peninsula, Santa Cruz Islandhills by San Francisquito Creek Comment
  CAS-BOT-BC500926  Dichelostemma capitatum Rimo Bacigalupi 1922-5-25 s.n. San Mateo Redwood Highlands Comment
  SEINET5548143  Dichelostemma capitatum H. S. Gentry 1931-1 5 San Mateo Collected 1.5 miles west of San Mateo, Half-moon Bay road. Comment
  SBBG39530  Dichelostemma capitatum subsp. capitatum L. S. Rose 1970-4-8 San Mateo Black Mtn, W of San Mateo 121 Comment
  RSA212171  Dichelostemma capitatum subsp. capitatum L. S. Rose 1970-4-8 70025 San Mateo Black Mtn, W of San Mateo. 122 Comment
  JROH5079  Digitaria sanguinalis John Hunter Thomas 1981-9-24 20747 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC121867  Dirca occidentalis G. Edelbrock 1975-2-8 1 San Mateo San Francisco Watershed 152 Comment
  JROH4208  Dirca occidentalis John H. Thomas 1975-4-3 17701 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM222804  Dirca occidentalis S. S. Berry 1909-2-27 s.n. San Mateo Trail to the Hermit's (Redwood Canyon) 107 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
  UCD116835  Dirca occidentalis R. E. Dengler 1960-4-11 13 San Mateo Stanford Biological Reserve, Jasper Ridge. 160 Comment
  SEINET12190189  Dirca occidentalis L. S. Gill 1930-1 178 San Mateo near Searsville Lake Comment
  RSA244344  Disporum hookeri var. hookeri C. W. Tilforth, John Dourley 1973-7-19 933 San Mateo Gazos Creek Road, between Butano and Big Basin State Parks Comment
  POM169800  Disporum smithii A. D. E. Elmer 1903-05 4697 San Mateo Butano Creek Comment
  UC204220  Disporum smithii A. D. E. Elmer May, 1903 4697 San Mateo Butano Creek Comment
  JROH3383  Dodecatheon hendersonii John H. Thomas 1967-3-26 12416 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD38129  Dodecatheon hendersonii Marie Cummings 1933-4-11 3687 San Mateo Spring Valley Lake Comment
  JROH1509  Draba verna John Hunter Thomas 1982-4-4 20820 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  RSA451896  Drymocallis glandulosa var. wrangelliana Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mts. overlooking Daly City near San Francisco. Comment
  JROH39  Dryopteris arguta John Hunter Thomas 1981-2-14 20219 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  RSA176874  Dryopteris arguta John H. Thomas 1964-11-29 10543 San Mateo Jasper Ridge Biologicl Experimental Area about 5 miles SW of Palo Alto. Comment
  IRVC3913  Dryopteris arguta P. W. Rundel 1963-6-11 1124 San Mateo San Fransisco Bay drainage area; Old La Honda Road. Santa Cruz Mountain Range 305 Comment
  RSA693753  Dryopteris arguta C. B. Wolf 1928-3-14 1537 San Mateo La Honda grade in the Santa Cruz Mountains 152 Comment
  SEINET10530141  Dryopteris arguta Mary Susan Taylor 1978-8-30 Taylor 1861 San Mateo Comment
  CAS-BOT-BC410869  Dudleya caespitosa Reid Moran 1951-7-3 3499 San Mateo Devils Slide, 2 miles north of Montara Comment
  JROH1810  Dysphania ambrosioides John H. Thomas 1974-10-29 17642 San Mateo Jasper Ridge Biological Preserve, Stanford University; small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  JROH5093  Echinochloa crus-galli John Hunter Thomas 1982-7-2 21059 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing. Comment
  JROH4307  Echinodorus berteroi John Hunter Thomas 1981-7-12 20701 San Mateo Jasper Ridge Biological Preserve, Stanford University; on sandy beach Comment
  JROH5099  Ehrharta erecta Ann Lambrecht 2003-11-5 7 San Mateo Jasper Ridge Biological Preserve, Stanford University. About 10 m downstream from low flow crossing, N side of stream. 81 Comment
  UCD61216  Ehrharta erecta Glen L. Holstein 1978-3-1 s. n. San Mateo Near Pescadero Point. Comment
  UC1100725  Eleocharis macrostachya Herbert L. Mason, Verne Grant 1946-8-28 13087 San Mateo S of San Francisco (Santa Cruz--Daly City Road # 5) Comment
  UC306633  Eleocharis macrostachya A. D. E. Elmer Jul 1903 4746 San Mateo San Pedro Comment
  CAS-BOT-BC113322  Eleocharis montevidensis Lewis Samuel Rose 1950-5-20 50146 San Mateo Emerald Lake region, hills of Redwood City 243 Comment
  CAS-BOT-BC113151  Eleocharis palustris Elizabeth McClintock; P. Reeberg 1989-5-2 s.n. San Mateo PG & E Marsh 4 Comment
  JEPS83040  Elymus californicus Roy E. Buck, Randall A. Morgan, James A. West 1983-7-15 429 San Mateo near crest of Cahill Ridge (w of gravel road, 0.7 mi nw of gate and 3.3 km nnw of intersection of Cal Hwys 35 and 92, along Cahill Ridge to above Pilarcitos Lake); San Francisco Watershed Reserve 327 Comment
  UC646422  Elymus glaucus J. Clausen 1937-6-20 1529 San Mateo hills w Redwood City (near the Easter Cross) Comment
  UCD61811  Elymus glaucus Beecher Crampton 1962-6-11 6497 San Mateo N. city limits of Pacfica; along State Hwy. 1 just southwest of its junction with Skyline Blvd. Comment
  CAS-BOT-BC203689  Elymus glaucus subsp. glaucus George Oberlander 1950-5-6 931 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon Comment
  JROH5105  Elymus glaucus subsp. glaucus John H. Thomas 1973-6-15 16847 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5107  Elymus glaucus subsp. glaucus John H. Thomas 1977-5-14 18605 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC203682  Elymus glaucus subsp. glaucus W. R. Dudley 1895-6-7 s.n. San Mateo Santa Cruz Mountain Peninsula. On ridge by trail to Big Basin Comment
  JROH5127  Elymus multisetus John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5131  Elymus multisetus John Hunter Thomas 1986-6-7 24086 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5136  Elymus multisetus John Hunter Thomas 1992-5-25 25340 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC204302  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
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Jul 12 2015
  UC1122561  Epilobium ciliatum subsp. watsonii H. S. Yates 1935-5-8 5220 San Mateo 2 mi sw Pescadero; Santa Cruz Quadrangle Comment
  SDSU8797  Epilobium ciliatum subsp. watsonii D. F. Howe 1967-8-6 4368 San Mateo Swamp at Half Moon Bay Comment
  UCD105934  Epilobium ciliatum subsp. watsonii Malcolm A. Nobs; S. Galen Smith 1949-8-26 1585 San Mateo About 1 mile south of Half Moon Bay. Comment
  JROH3072  Epilobium minutum Herbert Dengler 1964-5-17 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; to be found ca. 100 yds. w. of tiger lily site on serp. slope Comment
  POM32709  Epilobium minutum C. F. Baker 1902-5-4 749 San Mateo Woodside. Comment
  JROH3070  Epilobium minutum John H. Thomas 1963-5-15 10092 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM281831  Equisetum arvense Lyman Benson 1930-6-14 2157 San Mateo La Honda, Santa Cruz Mtn range. Redwoods. 244 Comment
  CAS-BOT-BC57030  Equisetum arvense Phillip C. Wheeler 1965-5-23 s.n. San Mateo N. W. Radio Road Comment
  RSA785880  Equisetum arvense Peter Rubtzoff 1976-3-14 8444 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
  JROH73  Equisetum telmateia subsp. braunii John Hunter Thomas 1982-11-6 21206 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta along edge of Searsville Lake Comment
  CHSC90173  Equisetum telmateia var. braunii Diane Mastalir 1988-3-27 4 San Mateo Near drainage ditch, 6.7 mi south of junction of Hwy 1 and Hwy 92, 1.7 mi east of Pescadero Road. 30 Comment
  POM87718  Equisetum telmateia var. braunii L. R. Abrams 1902-3-16 2282 San Mateo Kings Mountain Comment
  SJSU15446  Eragrostis curvula John Rawlings 2009-5-1 1048 B San Mateo This ornamental grass appeared along a short stretch of San Hill Rd. at the entrance to the Horse Park at Woodside. 119 Comment
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Feb 18 2015
  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
  CAS-BOT-BC299884  Erechtites glomeratus Fred Hemphill 1973-5-14 804 San Mateo North of Malabar Road and Melendy Drive, San Carlos 207 Comment
  CAS-BOT-BC291202  Erechtites glomeratus E. McClintock; Phillip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. Top of ridge, east of Nike station Comment
  CAS-BOT-BC299888  Erechtites glomeratus Delzie Demaree 1933-8-13 10505 San Mateo Santa Clara Valley, Belmont Comment
  CAS-BOT-BC299893  Erechtites glomeratus J. H. Thomas 1955-12-6 5514 San Mateo Pilarcitos Lake Dam Comment
  RSA0103881  Eriastrum abramsii L. S. Rose 1937-9-21 37659 San Mateo Emerald Lake. 183 Comment
  UCR126191  Erica canaliculata H. Schironi 1979-1-18 s.n. San Mateo Near Half Moon Bay Comment
  CAS-BOT-BC286883  Ericameria ericoides Elizabeth McClintock 1966-9-29 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon Comment
  CAS-BOT-BC295078  Erigeron glaucus A. A. Heller 1907-4-20 8455 San Mateo Near Lake Merced Comment
  CAS-BOT-BC295082  Erigeron glaucus John H. Thomas 1961-5-12 9327 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC295089  Erigeron glaucus Elsie M. Zeile 1921-7-30 1058 San Mateo Salada Comment
  UCR240776  Erigeron glaucus T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3521 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  CAS-BOT-BC295074  Erigeron glaucus Barrett Anderson; Peter Rubtzoff 1988-4-26 3674 San Mateo San Bruno Mountain. Radio Road south of Guadalupe Parkway 365 Comment
  RSA175148  Erigeron glaucus R. F. Thorne 1963-6-9 32239 San Mateo Top of San Bruno Mountain 335 Comment
  SD234039  Erigeron glaucus Virginia Pinkus Ryder 1964-2-21 77 San Mateo 1 mile past Greyound Rock. 29 Comment
  JROH695  Erigeron sumatrensis Toni Corelli 2011-8-30 371 b San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Dennis Martin site, above San Francisquito Creek 71 Comment
  CAS-BOT-BC216131  Eriodictyon californicum Fred Hemphill 1973-5-6 753 San Mateo North of Malabar Road and Melendy Dr., San Carlos 207 Comment
  CAS-BOT-BC250541  Eriogonum gracile Phillip C. Wheeler 1965-7-7 s.n. San Mateo San Bruno Mountain. Canyon south of Pig Ranch Comment
  RSA107485  Eriogonum latifolium L. S. Rose 1955-7-25 55167 San Mateo Pigeon Point 6 Comment
  RSA393632  Eriogonum latifolium E. S. Spalding 1924-6-28 s.n. San Mateo Moss Beach. Comment
  UC566073  Eriogonum latifolium G. E. Sindel 1935-7-25 302 San Mateo mouth of Pescadero Creek Santa Cruz Quadrangle, Pescadero Creek 3 Comment
  CAS-BOT-BC251969  Eriogonum latifolium Elizabeth McClintock; Paul Reeberg 1988-4-26 s.n. San Mateo at southern tip of ridge dividing Sage and Poison Oak Ravines 137 Comment
  CAS-BOT-BC251994  Eriogonum latifolium Helen D. Geis 1901-10-26 s.n. San Mateo Bluffs along Halfmoon Bay Comment
  CAS-BOT-BC251998  Eriogonum latifolium R. S. Ferris 1917-10-21 730 San Mateo ocean cliff - Moss Beach Comment
  CAS-BOT-BC266071  Eriogonum luteolum A. G. Vestal 1937-7-18 s.n. San Mateo Jasper Ridge, side of ridge not far from Stanford property line Comment
  POM165062  Eriogonum luteolum A. D. E. Elmer 1903-06 4309 San Mateo Belmont Comment
  POM165227  Eriogonum luteolum C. F. Baker 1902-9-10 1674 San Mateo Crystal Springs Lake Comment
  RSA120436  Eriogonum luteolum Hester R. Davis 1920-6-1 177 San Mateo Back of Redwood City Comment
  RSA169306  Eriogonum luteolum L. S. Rose 1964-9-9 64073 San Mateo Emerald Lake, west of Redwood City 244 Comment
  JROH3231  Eriogonum luteolum var. luteolum John H. Thomas 1974-10-26 17636 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3236  Eriogonum luteolum var. luteolum John Hunter Thomas 1988-8-21 24564 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3225  Eriogonum luteolum var. luteolum Duncan M. Porter 1960-10-12 725 San Mateo Jasper Ridge Biological Preserve, Stanford University. Meadow at crest of Ridge above Webb Ranch (area H). Comment
  CAS-BOT-BC269005  Eriogonum nudum var. auriculatum Lewis S. Rose 1964-9-9 64074 San Mateo Emerald Lake, w. of Redwood City 243 Comment
  POM165061  Eriogonum nudum var. auriculatum A. D. E. Elmer 1903-06 4311 San Mateo Crystal Springs Lake. Comment
  SBBG39490  Eriogonum nudum var. auriculatum L. S. Rose 1970-7-26 70080 San Mateo Hillsborough, Black Mtn, Skyline Blvd 121 Comment
  RSA393324  Eriogonum nudum var. auriculatum E. A. Purer 1933-8-25 5522 San Mateo Spring Valley Lakes Comment
  SEINET11938131  Eriogonum nudum var. auriculatum E. A. Purer 1933-1 5401 San Mateo Bayshore Highway near Redwood City Comment
  CAS-BOT-BC304072  Eriophyllum confertiflorum Fred Hemphill 1973-5-6 776 San Mateo San Carlos. N of Malabar Rd and Melendry Dr 207 Comment
  CAS-BOT-BC304088  Eriophyllum confertiflorum Ned Cahill 1974-5-13 267 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City Comment
  RSA418518  Eriophyllum confertiflorum Jerry A. Powell 1972-3-10 910 San Mateo Mt. San Bruno Comment
  JROH702  Eriophyllum confertiflorum var. confertiflorum John H. Thomas 1975-6-5 17942 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack Comment
  RSA463088  Eriophyllum lanatum var. arachnoideum Lyman Benson 1937-8-7 8486 San Mateo La Honda Road, Santa Cruz Mt. Range, San Francisco Bay Watershed 244 Comment
  CAS-BOT-BC301261  Eriophyllum lanatum var. arachnoideum W. R. Dudley 1906-6-12 s.n. San Mateo W. Union Gulch, back of winery Comment
  CAS-BOT-BC301964  Eriophyllum staechadifolium John H. Thomas 1963-7-19 10188 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC301968  Eriophyllum staechadifolium L. R. Abrams 1907-8-1 s.n. San Mateo Between Pescadero and Half Moon Bay Comment
  RSA1946  Eriophyllum staechadifolium C. B. Wolf 1930-11-5 1808 San Mateo Hills near the ocean, 2 miles south of Pescadero 61 Comment
  UCSB10755  Eriophyllum staechadifolium Myrick, Donald 1966-6-11 San Mateo Near Pescadero Creek off Highway #1 south of San Francisco Comment
  CAS-BOT-BC41437  Eruca vesicaria subsp. sativa Elsie Z. Lovegrove 1948-2-22 s.n. San Mateo Coast road near Montara. Comment
  POM259929  Eryngium armatum I. L. Wiggins 1939-8-2 9296 San Mateo Ano Nuevo Point 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-BC54829  Erysimum franciscanum W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Peninsula. San Mateo. Comment
  CAS-BOT-BC54841  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-6-4 914 San Mateo Above southeast shore of Crystal Springs Lake, soutwest base Pulgas Ridge. 91 Comment
  CAS-BOT-BC54868  Erysimum franciscanum Le Roy Abrams 1902-5-11 2443 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC54889  Erysimum franciscanum Catherine A. Toschi 1963-3-17 63 :53 San Mateo East slope San Bruno Mountains below radio station. 213 Comment
  CHSC37823  Erysimum franciscanum J. F. Esperance 1982-3-6 San Mateo Top of San Bruno Mtn., 0.5 mi s of parking area along ridge top. 304 Comment
  JEPS90156  Erysimum franciscanum Dean W. Taylor 1988-4-8 9513 San Mateo n slope of se ridge of San Bruno Mountain ((near the ridgecrest), Right-of-way of eastern-most set of PG&E high-voltage powerlines crossing the mountain, Santa Cruz Mountains); Santa Cruz Mountains, San Bruno Mountain 237 Comment
  LA204415  Erysimum franciscanum H. E. Parks; S. T. Parks 1930-3-10 401 San Mateo Spring Valley Lakes Comment
  RSA101862  Erysimum franciscanum G. B. Rossbach 1938-3-15 800 San Mateo East side of Crystal springs Lake 107 Comment
  UC1034698  Erysimum franciscanum G. B. Rossbach 1955-3-12 567 San Mateo lower w slope of ridge above E shore Crystal Spring Lake; Pulgas Ridge Comment
  UC1034726  Erysimum franciscanum G. B. and R. P. Rossbach 1939-3 900 a&b San Mateo 2.5 mi n Montara (near Devil's Slide, steep granitic slope above sea) Comment
  UC10577  Erysimum franciscanum J. Burtt Davy 1895-4-20 1070 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC54858  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-5-12 912 San Mateo Slope of headland above sea, Padro Point. 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-BC164031  Erythranthe grandis Peter Rubtzoff 1976-6-30 8705 San Mateo San Bruno Mountain. 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
  CHSC59820  Erythranthe guttata Jan M. Karaz 1979-5-28 78 San Mateo 2.5 mi west of Hwy 280 towards San Francisco Bay on Farm Hill Blvd, along Stulsaft Creek in Stulsaft Park. Comment
  JROH5683  Erythranthe microphylla John Rawlings 2015-3-15 1357 San Mateo Jasper Ridge Biological Preserve, Stanford University; rocky serpentine north side of ridge. 176 Comment
  CAS-BOT-BC403559  Eschscholzia californica Anne Constant 1955-5-28 201 San Mateo Pescadero Beach 7 Comment
  CAS-BOT-BC403560  Eschscholzia californica Walter Knight; Irja Knight 1964-4-25 632 San Mateo San Bruno Mountain. Power Line Ridge Comment
  JROH3094  Eschscholzia californica John H. Thomas 1967-6-1 12963 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3101  Eschscholzia californica John Hunter Thomas 1981-5-19 20610 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC4303  Euonymus occidentalis J. Wendell Howe 1930-3-27 San Mateo Coast Rd. near Pigeon Point. Comment
  POM278190  Euonymus occidentalis Lyman Benson 1930-5-26 2132 San Mateo Stanford University, Lake Searsville 152 Comment
  RSA100720  Euonymus occidentalis A. D. E. Elmer 1903-1 4317 San Mateo Butano Creek Comment
  UC306743  Euonymus occidentalis var. occidentalis A. D. E. Elmer 1903-1 4317 San Mateo Butano Creek Comment
  UC635625  Euonymus occidentalis var. occidentalis Herbert L. Mason 1924-10-8 1110 San Mateo 2 1/2 mi. w. Palo Alto (n.w. end of Jasper Ridge); Jasper Ridge Comment
Read comments
Sep 19 2011
  RSA130685  Euphorbia crenulata C. F. (illegible) 1894-3-28 s.n. San Mateo Lobitas road. Comment
  JROH5788  Euphorbia oblongata John Rawlings 2016-5-10 1780 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Cr. near Dennis Martin site. 73 Comment
  UCR123136  Euphorbia oblongata Don Pendleton 2002-4-26 s.n. San Mateo San Francisco Bay Region, Woodside, Sandhill Road, 0.25 mi north of Portola Road, west of Hwy 280 152 Comment
  JROH1971  Euphorbia spathulata Karen Weissman 1970-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Area H 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
  JROH5919  Eurybia radulina John Hunter Thomas 1981-5-25 20629 San Mateo Jasper Ridge Biological Preserve, Stanford University 88 Comment
  CAS-BOT-BC310621  Eurybia radulina L. R. A. 1902-9-28 3004 San Mateo Portola - Santa Cruz Mts. Comment
  CAS-BOT-BC459225  Euthamia occidentalis David D. Keck 1931-9-27 1272 San Mateo Dumbarton Bridge Comment
  SJSU6623  Felicia amelloides T. M. Morton 1972-4-1 San Mateo residence 735 Laurelwood Dr, San Mateo Comment
  JROH5171  Festuca arundinacea Toni Corelli 2001-5-5 245 San Mateo Jasper Ridge Biological Preserve, Stanford University; near concrete pad above CO2 area in disturbed grassland and planting of Pinus radiata 112 Comment
  JROH5475  Festuca bromoides John Hunter Thomas 1984-5-3 23334 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5477  Festuca bromoides W. Lennihan 1990-4-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Escobar - right of road just before Trail 15. 176 Comment
  JROH5689  Festuca bromoides John Rawlings 2015-2-21 1281 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 4 on north side of Jasper Ridge 167 Comment
  JROH5821  Festuca bromoides John Rawlings 2016-3-8 1682 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 14 uphill from dam spillway 108 Comment
  JROH5176  Festuca californica John H. Thomas 1967-5-12 12866 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC278353  Festuca californica subsp. californica David D. Keck 1932-5-11 1499 San Mateo Above Woodside on La Honda road, east slope of Santa Cruz Mountains Comment
  JROH5497  Festuca myuros John H. Thomas 1973-3-12 16498 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5495  Festuca myuros John H. Thomas 1967-5-12 12867 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5508  Festuca octoflora Herb Dengler 1963-5-26 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Top of Ridge. Comment
  UC429787  Festuca roemeri LeRoy Abrams 1902-5-11 2450 San Mateo Crystal Springs Comment
  RSA582075  Festuca rubra D. D. Keck 1932-5-6 1478 San Mateo Above Millbrae Highlands Comment
  SEINET3386774 Image available Filago californica Lewis S. Rose 1933-4-30 33133 San Mateo Redwood City, open hills Comment
  RSA218035  Filago gallica Walter Knight, I. Knight 1967-5-16 s.n. San Mateo Randolph Ave., south San Francisco Comment
  UCR253346  Foeniculum vulgare A. C. Sanders 2014-8-3 41231 San Mateo San Francisco Bay, South San Francisco, San Francisco Bay Trail in vicinity of S Airport Drive, Utah Ave., and Haskins Way, between Hwy 101 and San Francisco Bay 6 Comment
  SD37687  Fragaria chiloensis Edith A. Purer 1933-5-14 3605 San Mateo Pescadero Comment
  SD39962  Fragaria chiloensis Edith A. Purer 1933-7-27 5386 San Mateo sand dunes, two miles south of Pigeon Point Comment
  UC1536909  Fragaria chiloensis Gordon H. True 1937-3-31 616 San Mateo Salada Beach Comment
  UC466552  Fragaria chiloensis R. L. Pendleton 1907-4-20 629 San Mateo Colma Comment
  CAS-BOT-BC437034  Fragaria chiloensis J. H. Thomas 1949-6-4 576 San Mateo 1.4 miles south of road to Pescadero Comment
  CAS-BOT-BC437038  Fragaria chiloensis Elizabeth McClintock 1965-3-28 s.n. San Mateo April Brook, San Bruno Mountain Comment
  SBBG51517  Fragaria vesca J. Doty 1969-3-26 598 San Mateo 100 yards E of jct of State Hwys 35 and 92, near summit Comment
  CAS-BOT-BC457515  Fragaria vesca subsp. californica W. R. Dudley 1894-7-28 s.n. San Mateo hill between La Honda and Pescadero, Santa Cruz Mountain Pennisula Comment
  SEINET11915234  Fragaria vesca subsp. californica L. S. Gill 1930-1 s.n. San Mateo Kuig Mt Comment
  CAS-BOT-BC52674  Frangula californica subsp. californica James Newman 1951-6-5 96 San Mateo Searsville Lake Comment
  JROH3543  Frangula californica subsp. californica John H. Thomas 1974-9-19 17601 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3578  Frangula californica subsp. tomentella John H. Thomas 1973-5-5 16770 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET6671073 Image available Frankenia grandifolia Malcolm A. Nobs, S. Galen Smith 1949-1 1599 San Mateo Mouth of Pescadero Creek Comment
  CAS-BOT-BC223549  Fraxinus latifolia W. R. Dudley 1894-4-13 s.n. San Mateo Santa Cruz Peninsula. By San Francisquito Creek near Big Tree Comment
  CAS-BOT-BC130137  Fritillaria affinis Ira L. Wiggins 1928-4-14 2915 San Mateo Alpine Creek Road Comment
  JEPS55687  Fritillaria affinis W. Roderick 1962-2-10 San Mateo Mount San Bruno 3 Comment
  UC3641  Fritillaria affinis J. Burtt Davy 1895-4-20 1056 San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC130117  Fritillaria affinis Volney Rattan 1802-1-1 s.n. San Mateo Cushings Comment
  CAS-BOT-BC130131  Fritillaria affinis Margaret A. Barry 1938-4-5 234 San Mateo Woods on Coal Mine Ridge Comment
  RSA794663  Fritillaria affinis Lyman Benson 1930-4-27 2099 San Mateo Stanford University, Corte Madera Creek drainage area Comment
  SEINET12054472  Fritillaria affinis Unknown 1932-1 8965 San Mateo La Honda Road Comment
  CAS-BOT-BC130210  Fritillaria agrestis Roxana S. Ferris 1921-3-21 2120 San Mateo New Years Point - [Ann] Ano Nuevo Comment
  JEPS4953  Fritillaria biflora var. ineziana Inez Smith 1914-3-12 San Mateo Hillsboro Comment
  SEINET1783225  Fritillaria biflora var. ineziana Inez Smith 1914-3-12 s. n. San Mateo Hillsboro. Comment
  CDA34013  Fumaria capreolata D. G. Kelch 2011-3-13 11 .058 San Mateo Near Half Moon Bay along Capistrano Creek. Comment
  CAS-BOT-BC422449  Fumaria capreolata Philip Morgan 1985-5-1 s.n. San Mateo Growing at the base of Montara Mountain. Comment
  POM59550  Galium aparine A. D. E. Elmer 1903-05 4424 San Mateo San Mateo Comment
  JROH3793  Galium murale John H. Thomas 1969-4-12 14891 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near redwoods below dam Comment
  JROH3807  Galium murale John Hunter Thomas 1992-4-23 25159 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Rattlesnake Rocks and along trail to redwoods Comment
  UCD121881  Galium parisiense John Thomas Howell 1978-7-18 53188 San Mateo McClellan residence, 1356 Bernal Ave., Burlingame. Comment
  RSA502332  Galium trifidum var. pacificum D. W. Taylor 1987-8-20 9310 San Mateo Cascade Ranch state park area, between Whitehorse Creek and Cascade Creek. Comment
  CAS-BOT-BC303467  Gamochaeta ustulata John Thomas Howell 1926-4-24 1921 San Mateo Daly City Comment
  CAS-BOT-BC303470  Gamochaeta ustulata George Oberlander 1949-5-13 156 San Mateo San Francisco Watershed Reserve. About San Andreas Lake 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
  JROH796  Gamochaeta ustulata John Hunter Thomas 1983-4-14 21403 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  CAS-BOT-BC194568  Garrya elliptica Helen M. Edwards 1917-2-1 s.n. San Mateo Los Trancos Woods Comment
  JROH2541  Garrya elliptica E. A. McGregor 1907-2-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University 243 Comment
  SEINET12137148  Garrya elliptica Unknown 1930-1 7312 San Mateo on road to Los Francos Woods Comment
Read comments
Nov 1 2021
  CAS-BOT-BC278662  Gastridium phleoides Fred Hemphill 1973-5-14 812 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  JROH5191  Gastridium phleoides John Hunter Thomas 1982-7-3 21064 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC59639  Gaultheria shallon Herbert L. Mason 1920-6-25 s.n. San Mateo Pescadero Cr. Comment
  POM226889  Gaura sinuata L. R. Abrams 1935-06 13687 San Mateo Field near junction of Los Troncos and San Francisquito creeks Comment
  CAS-BOT-BC219141  Genista monspessulana T. C. Fuller 1960-4-20 4086 San Mateo roadside, Page Mill Road, 0.5 mi above (SW) Moody Road, Los Altos Hills Comment
  JROH2613  Geranium dissectum John H. Thomas 1973-3-12 16486 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC166682  Geranium dissectum Peter Rubtzoff 1976-5-22 8546 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  UC75487  Gilia clivorum C. F. Baker Apr 1903 1930 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC303681  Glebionis coronaria J. H. Thomas 1961-5-7 9245 San Mateo Colma. Near intersection of El Camino Real and F Street 45 Comment
  CAS-BOT-BC303687  Glebionis coronaria Walter & Irja Knight 1967-6-6 2071 San Mateo San Bruno Mt. Point San Bruno Comment
  JROH5201  Glyceria X occidentalis John Rawlings 2007-6-9 1022 San Mateo Jasper Ridge Biological Preserve, Stanford University. A few meters downstream from the Bear Creek and San Francisquito Creek confluence on a gravel bar on the NW side of San Francisquito Creek. 81 Comment
  JROH2026  Glycyrrhiza lepidota John Hunter Thomas 1983-7-7 22819 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176726  Glycyrrhiza lepidota John H. Thomas 1962-7-15 9923 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below dam. Comment
  CAS-BOT-BC307439  Gnaphalium palustre Le Roy Abrams 1900-10-1 1006 San Mateo Searsville Lake Comment
  UCR252691  Grindelia A. C. Sanders 2014-8-3 41238 San Mateo San Francisco Bay, South San Francisco, San Francisco Bay Trail in vicinity of S Airport Drive, Utah Ave., and Haskins Way, between Hwy 101 and San Francisco Bay 6 Comment
  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
  CAS-BOT-BC304504  Grindelia hirsutula Alice Eastwood 1914-12-16 s.n. San Mateo Redwood City Comment
  CAS-BOT-BC304508  Grindelia hirsutula W. R. Dudley 1894-1-28 s.n. San Mateo Santa Cruz Peninsula. Redwood Creek Comment
  CAS-BOT-BC304527  Grindelia hirsutula John H. Thomas 1961-8-27 9707 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC304533  Grindelia hirsutula Lewis S. Rose 1933-7-21 33306 San Mateo Montara Comment
  CAS-BOT-BC304542  Grindelia hirsutula W. R. Dudley 1894-5-30 s.n. San Mateo Santa Cruz Peninsula. Near Redwood City Comment
  CAS-BOT-BC304549  Grindelia hirsutula Javier Penalosa 1963-3-30 2736 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF 289 Comment
  CAS-BOT-BC304556  Grindelia hirsutula Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Sierra Point 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
  JEPS20069  Grindelia hirsutula Peter H. Raven 1957-9-1 11297 San Mateo at junction of State Highway 1 and Tunitas Creek 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
  RSA217970  Grindelia hirsutula Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain; below top of mountain. Comment
  UC520390  Grindelia hirsutula Delzie Demaree 1933-6-23 10378 San Mateo Pigeon Point Comment
  JROH824  Grindelia hirsutula John Hunter Thomas 1983-6-2 22328 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA93068  Grindelia hirsutula var. hirsutula D. D. Keck 1932-5-25 1783 San Mateo Hills 2 miles W of Belmont Comment
  SD30785  Grindelia stricta var. angustifolia Edith A. Purer 1933-8-26 5525 San Mateo Along highway, at edge of ditch near salt water Comment
  SD30784  Grindelia stricta var. angustifolia Edith A. Purer 1933-8-4 5414 San Mateo Baden Station Comment
  CDA6158  Grindelia stricta var. platyphylla T. C. Fuller 1960-6-24 5020 San Mateo Highway 1, 7 miles north of Princeton. 0 Comment
  POM288781  Grindelia stricta var. platyphylla Lyman Benson 1934-7-4 6101 San Mateo Moss Beach; Pacific Ocean watershed 15 Comment
  RSA184825  Grindelia stricta var. platyphylla L. S. Rose 1965-9-4 65102 San Mateo Pillar Point. 15 Comment
  RSA502346  Grindelia stricta var. platyphylla D. W. Taylor 1988-6-5 9789 San Mateo Hwy 1 at 'Big Slide,' a steep, eroding section of coastal bluff 1 mile N of Montara; Santa Cruz Mountains. 76 Comment
Read comments
Aug 25 2016
  CAS-BOT-BC282867  Hainardia cylindrica A. G. Vestal 1926-5-1 s.n. San Mateo San Pedro Point Comment
  JROH439  Hedera helix John H. Thomas 1967-6-1 12974 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA3886  Helenium puberulum I. L. Wiggins 1929-7-4 3791 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  SJSU15964  Helenium puberulum John Rawlings, Ken Hickman 2016-5-26 1841 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
  UC1598594  Helenium puberulum A. D. E. Elmer Jul 1903 4972 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC309528  Helenium puberulum Philip Wheeler 1965-6-16 s.n. San Mateo San Bruno Mountain. In Colma Canyon Comment
  CAS-BOT-BC309530  Helenium puberulum E. M. Zeile 1921-7-30 1132 San Mateo Mussel Rock Comment
  UC917226  Helenium puberulum W. A. Harvey and J. M. Tucker 1948-6-28 1701 San Mateo on ridge ca 3 mi n Pescadero Comment
  CAS-BOT-BC305338  Helianthella castanea G. Ward 1941-4-12 s.n. San Mateo Brisbane hills Comment
  HSC23781  Helianthemum scoparium Mary Katherine Wicksten 1971-6-17 63 San Mateo Huddart Park, by Werder Shelter Comment
  SJSU8350  Helianthus californicus J. L. Bonora 1963-10-11 San Mateo Redwood City Recreationn Center, Redwood City Comment
  CAS-BOT-BC305921  Helminthotheca echioides Ira L. Wiggins 1979-8-26 22243 San Mateo Alley between Central and Woodland Avenues, running from Pope to Gilbert Streets, Menlo Park Comment
  CAS-BOT-BC314914  Hemizonia congesta subsp. luzulifolia Ned Cahill 1974-8-26 367 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi. westward from Redwood City Comment
  CAS-BOT-BC314918  Hemizonia congesta subsp. luzulifolia John H. Thomas 1958-11-22 7507 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto 182 Comment
  CAS-BOT-BC314920  Hemizonia congesta subsp. luzulifolia John H. Thomas 1971-5-2 16848 San Mateo Near intersection of Canada Road and Edgewater Road about three miles westward from Redwood City 152 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
  LA203702  Hemizonia congesta subsp. luzulifolia Lewis S. Rose; 1935-9-21 35652 San Mateo Redwood City Comment
  SBBG55408  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1914-7-15 5140 San Mateo Crystal Springs Comment
  UC193424  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-13 10225 San Mateo 2.2 km e Crystal Springs Lake (on San Mateo Creek); San Mateo Creek Comment
  CAS-BOT-BC313455  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1908-8-1 s.n. San Mateo Summit Crystal Springs-Belmont Road Comment
  JROH871  Hemizonia congesta subsp. luzulifolia John Hunter Thomas 1984-9-6 23478 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM360251  Hemizonia corymbosa subsp. corymbosa L. S. Rose 1937-8-29 37644 San Mateo Moss Beach. 15 Comment
  RSA81629  Hemizonia corymbosa subsp. corymbosa James I. McMurphy 1906-11-17 2 San Mateo Near Portola. Comment
  SEINET7883265 Image available Hemizonia grandiflora L. R. Abrams 1914-1 5140 San Mateo Crystal Springs; at the type station Comment
  POM360311  Hemizonia luzulifolia L. S. Rose 1964-9-5 64070 San Mateo Emerald Lake, W of Redwood City. 244 Comment
  POM360312  Hemizonia luzulifolia E. A. Purer 1933-8-4 18258 San Mateo Bayshore Hwy. Comment
  RSA81634  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1908-08 s.n. San Mateo Summit of Crystal Springs-Belmont Road. Comment
  CDA7809  Hemizonia parryi M. A. Mello 1961-10-3 San Mateo Marsh & Beffa Ranch, Half Moon Bay. 0 Comment
  SEINET11848436  Hemizonia pungens E. A. Purer 1933-1 5399 San Mateo along Bayshore Highway Comment
  UC1084378  Heracleum lanatum G. Thomas Robbins 1937-4-11 75 San Mateo along Skyline Blvd. s. of San Francisco Comment
  JROH884  Hesperevax sparsiflora var. sparsiflora John H. Thomas 1970-1-1 15493 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH885  Hesperevax sparsiflora var. sparsiflora John H. Thomas 1977-2-20 18469 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
  JROH4228  Hesperocnide tenella John H. Thomas 1974-5-19 17384 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
  CAS-BOT-BC403870  Hesperocnide tenella James McMurphy 1906-5-14 s.n. San Mateo Above Stanford Residence, San Francisquito Creek Comment
  CAS-BOT-BC176205  Hesperolinon congestum L. S. Rose 1931-5-15 s.n. San Mateo Emerald Lake west of Redwood City Comment
  JROH2928  Hesperolinon micranthum John H. Thomas 1969-6-4 15107 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM139231  Hesperolinon micranthum A. D. E. Elmer 1903-05 4422 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC148474  Heteromeles arbutifolia A. D. E. Elmer 1903-2-1 4575 San Mateo Portola Comment
  JROH3678  Heteromeles arbutifolia John H. Thomas 1973-6-10 16814 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3680  Heteromeles arbutifolia John H. Thomas 1974-5-29 17406 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0072374  Heteromeles arbutifolia John H. Thomas 1965-12-19 11459 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  RSA451286  Heteromeles arbutifolia E. A. Purer 1932-7-18 15930 San Mateo Kings Mtn Comment
  UC860403  Heteromeles arbutifolia Lewis S. Rose 1937-10-31 37726 San Mateo hills w Tanforan 91 Comment
  CAS-BOT-BC310771  Heterotheca sessiliflora subsp. echioides C. F. Leitholt 1894-7-28 s.n. San Mateo Road above Buck Horn Ranch near Portola Comment
  RSA184913  Heterotheca sessiliflora subsp. echioides L. S. Rose 1966-8-20 66087 San Mateo San Bruno Mountain. 366 Comment
  JEPS27369  Heuchera micrantha Rimo Bacigalupi with J. Roof and L. Heckard 1961-4-24 7629 San Mateo below and se of end of paved ridge-top road just e of KRON television tower and station San Bruno Mt summit (Guadalupe Valley side of); San Bruno Mt 304 Comment
  CAS-BOT-BC420891  Heuchera micrantha var. diversifolia Peter Rubtzoff 1953-5-14 1342 San Mateo Pilarcitos Creek canyon 1 to 2 miles downstream from Pilarcitos Lake Comment
  UC729863  Heuchera micrantha var. diversifolia Carl B. Wolf 1929-6-8 3747 San Mateo along head of San Francisquito Creek; Searsville Lake 91 Comment
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Jul 14 2009
  UCR70818  Heuchera micrantha var. diversifolia David D. Keck 1932-6-1 1794 San Mateo Coast Range; Santa Cruz Mtns, above Woodside on La Honda road 366 Comment
  UC765037  Heuchera micrantha var. erubescens R. F. Hoover 1940-9-1 4546 San Mateo La Honda summit La Honda Comment
  CAS-BOT-BC424376  Heuchera micrantha var. hartwegii John H. Thomas 1967-5-7 12837 San Mateo Near intersection of Bean Hollow and Pescadero roads, about 1/2 mile westward from Pescadero. 91 Comment
  CAS-BOT-BC424381  Heuchera micrantha var. hartwegii W. R. Dudley 1905-6-18 s.n. San Mateo Near Pescadero Creek; Inverson's Old Place; Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC319633  Hieracium albiflorum George Oberlander 1950-5-6 997 San Mateo Sawyer Ridge, San Francisco Watershed Reserve Comment
  JROH910  Hieracium albiflorum John H. Thomas 1964-11-29 10545 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA120374  Hierochloe occidentalis Le Roy Abrams 1904-3-7 s.n. San Mateo Bear Gulch, Santa Cruz Mountains Comment
  UC1132086  Hierochloe occidentalis Beryl Schreiber 1939-4-3 2609 San Mateo Pescadero-La Honda road 1 mi s La Honda; Santa Cruz Quadrangle 152 Comment
  JROH1532  Hirschfeldia incana John H. Thomas 1964-11-15 10528 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  CAS-BOT-BC55431  Hirschfeldia incana Ira L. Wiggins 1975-8-5 22174 San Mateo Bed of San Francisquito Creek, ca. 100 m above Pope Street bridge, both sides of Santa Clara--San Mateo line. Comment
  RSA134378  Hoita orbicularis L. S. Rose 1959-6-24 59031 San Mateo San Mateo, Black Mtn. Rd. near Skyline Blvd. 122 Comment
  CAS-BOT-BC289249  Holcus lanatus George Oberlander 1949-7-10 262 San Mateo San Francisco Watershed Reserve, south boundary Comment
  JROH5206  Holcus lanatus John H. Thomas 1967-5-31 12929 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD84964  Holcus lanatus Josephine D. Randall 1907-6-29 159 San Mateo Portola Valley. Comment
  LA207940  Holodiscus discolor David D. Keck; 1932-6-1 1795 San Mateo Santa Cruz Mountains, Above Searsville Lake, on road between Woodside and Skyline Blvd Comment
  NY42430  Holodiscus discolor J. B. Walker 1994-8-14 908 San Mateo Pomponio Creek Rd, 5km S of junction of Hwy 84 & Hwy 1 10 Comment
  POM274869  Holodiscus discolor Lyman D. Benson 1937-8-15 8487 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains. 244 Comment
  RSA449783  Holodiscus discolor D. D. Keck 1932-6-1 1795 San Mateo Above Searsville Lake, on road between Woodside and Skyline Blvd. Santa Cruz Mountains. Comment
  UC311487  Holodiscus discolor A. D. E. Elmer Jun 1903 4274 San Mateo San Mateo Comment
  CAS-BOT-BC150057  Holodiscus discolor var. discolor Jay B. Walker; Noah Goldstein 1994-8-14 908 San Mateo Pomponio Creek Road. 5 km south of jct Hwy 84 and Hwy 1 10 Comment
  JROH3698  Holodiscus discolor var. discolor John Hunter Thomas 1987-5-19 24289 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near lake Comment
  JROH3700  Holodiscus discolor var. discolor John Hunter Thomas 1989-6-6 24765 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10867105  Hookera terrestris Helen M. Edwards 1917-4-12 Edwards s.n. 1917 San Mateo Crystal Sprngs Lake 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
  SJSU15413  Hordeum brachyantherum subsp. brachyantherum Toni Corelli 2010-5-21 671 San Mateo Pescadero State Beach and Marsh Natural Preserve. North Pond Trail 9 Comment
  CAS-BOT-BC289534  Hordeum brachyantherum subsp. californicum Cherie Wetzel 1969-6-20 881 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  JROH5221  Hordeum brachyantherum subsp. californicum John H. Thomas 1973-6-10 16820 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC285044  Hordeum depressum John Thomas Howell 1953-5-20 28969 San Mateo Redwood City Comment
  CAS-BOT-BC289457  Hordeum murinum subsp. leporinum John H. Thomas 1963-5-20 10152 San Mateo Ano Nuevo Island about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  RSA181231  Hordeum murinum subsp. leporinum John H. Thomas 1963-5-20 10152 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  SD99477  Hordeum murinum subsp. leporinum Ira L. Wiggins 1975-4-17 22143 San Mateo NE side of Southern Pacific right-of-way, between San Francisquito Creek and Willow Road, Menlo Park Comment
  CAS-BOT-BC271353  Hordeum vulgare J. H. Thomas 1962-5-12 9862 San Mateo Franklin Point, about sea level Comment
  POM250804  Horkelia californica D. D. Keck 1939-7-1 5008 San Mateo 3 miles S of Pescadero, 1 mile from the ocean. 61 Comment
  UCR19821  Horkelia cuneata C. S. Life 1923-1 s.n. San Mateo San Francisco 135 Comment
  CAS-BOT-BC143924  Horkelia cuneata var. sericea A. D. E. Elmer 1903-4-1 5036 San Mateo Cemeteries 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
  SJSU2301  Hosackia gracilis C. W. Sharsmith 1950-4-16 6630 San Mateo near Pescadero Point, Pescadero Comment
  UCD160241  Hypericum canariense Christopher Dillis 2015-5-15 4 San Mateo South of Pescadero on Hwy 1 (Cabrillo Hwy), 400 m south of Highway Brewing Company, then east 120 m on unmarked 1-lane dirt road; 10 m southwest of intersection with Old Coast Highway. 200 Comment
  UCD160242  Hypericum canariense Christopher Dillis 2015-5-15 5 San Mateo South of Pescadero on Hwy 1 (Cabrillo Hwy), 400 m south of Highway Brewing Company, then east 120 m on unmarked 1-lane dirt road; 10 m southwest of intersection with Old Coast Highway. 200 Comment
  CAS-BOT-BC311395  Hypochaeris glabra Fred Hemphill 1973-5-14 820 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  UCD133374  Hypochaeris glabra J. Skoss 1948-8-22 111 -A San Mateo San Vincente Canyon, near Montara. Comment
  CAS-BOT-BC311483  Hypochaeris radicata John H. Thomas 1958-3-19 7057 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  JROH927  Hypochaeris radicata John H. Thomas 1973-5-5 16771 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH936  Hypochaeris radicata John Hunter Thomas 1985-5-22 23679 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10560665  Hystrix californica Peter H. Raven 1967-6-25 Raven 21418 San Mateo Pescadera Road 2.8 mi SW of Alpine Road, borders of coniferous forest. Comment
  SD38479  Iris douglasiana Marie Cummings 1933-4-14 16 San Mateo Half-Moon Bay. Comment
  SEINET10529078  Iris douglasiana R. D. Sage 1992-1-6 Sage 13394 -1 San Mateo Collected along purisima creek rd trail in purisima creek redwoods open space preserve. 9 Km w woodside. 244 Comment
  CAS-BOT-BC133653  Iris longipetala Roxana Stinchfield 1910-5-3 267 San Mateo Half Moon Bay - near town Comment
  CAS-BOT-BC133666  Iris longipetala Walter Knight; Irja Knight 1965-3-21 956 San Mateo Along ridge near power lines at Brisbane end Comment
  CAS-BOT-BC133675  Iris longipetala Lewis S. Rose 1964-4-12 64020 San Mateo South San Francisco, San Bruno Mt. 60 Comment
  UC844901  Iris longipetala Lewis S. Rose 1938-4-1 38111 San Mateo above Visitacion Valley; San Bruno Hills 60 Comment
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Oct 22 2013
  SEINET5883393 Image available Iris longipetala L. S. Rose 1964-1 64020 San Mateo S San Francisco, San Bruno Mtn, alt ca 200 ft 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
  IRVC9079  Iris macrosiphon P. W. Rundel 1963-6-11 1116 San Mateo San Fransisco Bay drainage area; Old La Honda Road. Santa Cruz Mountain Range 305 Comment
  JROH4428  Iris pseudacorus J. H. Thomas 1958-5-11 7165 San Mateo Jasper Ridge Biological Preserve, Stanford University. Growing along edge of Searsville Lake Comment
  CAS-BOT-BC57726  Isoetes howellii W. R. Dudley 1909-10-31 s.n. San Mateo Woodside Valley pond Comment
  CAS-BOT-BC57732  Isoetes howellii J McMurphy 1906-7-28 s.n. San Mateo Coal Mine Ridge - near Portola Comment
  SJSU16039  Isolepis carinata Toni Corelli, John Rawlings 2016-4-29 1764 San Mateo Cascade Field along Cascade Cr. Trail, Ano Nuevo State Park 21 Comment
  CAS-BOT-BC112611  Isolepis cernua John Hunter Thomas 1963-7-19 10181 A San Mateo Ano Nuevo Point. Comment
  POM185328  Isolepis cernua E. B. Copeland 1903-6-15 3315 San Mateo Montara Point. Comment
  RSA132406  Isolepis cernua John H. Thomas 1959-7-8 8017 San Mateo Pescadero Beach. Comment
  CAS-BOT-BC112623  Isolepis cernua W. R. Dudley 1906-10-12 s.n. San Mateo Pond 20 Comment
  JEPS15532  Jaumea carnosa G. Thomas Robbins 1956-8-18 3738 San Mateo mouth of Pomponio Creek (at Pacific Ocean) Comment
  CAS-BOT-BC340139  Jaumea carnosa W. R. Dudley 1908-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Laguna Salada Comment
  SJSU4270  Jaumea carnosa D. R. Conradson 1968-10-9 San Mateo by Palo Alto Yacht Harbor Comment
  UC672619  Juglans californica var. hindsii Herbert L. Mason 1924-10-8 1107 San Mateo along creek at n end Jasper Ridge (2 1/2 mi w of Palo Alto); San Francisquito Creek Comment
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Sep 19 2011
  CAS-BOT-BC102323  Juglans hindsii Ed Holm; Field Biol. Class, San Mateo High School 1984-7-24 s.n. San Mateo In creekbed of San Mateo Creek next to Polhemus Rd. just before it joins Crystal Springs Rd. and about 100 yds. below Comment
  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
  SEINET10879451  Juncus balticus P. Rubtzoff, Elizabeth M. McClintock 1989-8-31 Rubtzoff 10045 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, along old Guadalupe Road, east of the Saddle Trail junction, San Bruno Mountains. Comment
  JROH4450  Juncus bufonius var. bufonius John H. Thomas 1974-5-19 17384 C San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5946  Juncus bufonius var. bufonius John Rawlings 2017-4-9 2016 San Mateo Jasper Ridge Biological Preserve, Stanford University; along entrance road near Sand Hill Gate 117 Comment
  POM259790  Juncus bufonius var. bufonius I. L. Wiggins, Roxana S. Ferris 1939-8-2 9291 San Mateo Ano Nuevo Point 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
  RSA276358  Juncus bufonius var. congestus Jane Turner, Francis M. Ball 1962-7-7 SK&F- 1083 San Mateo Highway 1, ca. 10 miles N of Santa Cruz County line. Comment
  JROH4466  Juncus bufonius var. occidentalis John H. Thomas 1974-4-4 17086 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1601740  Juncus effusus subsp. pacificus J. Burtt Davy 1893-6-22 757 San Mateo head of Lake Pilarcitos Lake Pilarcitos Comment
  JEPS121406  Juncus hesperius Toni Corelli 2008-10-1 346 San Mateo Jasper Ridge Biological Reserve, Searsville Lake Comment
  JEPS63835  Juncus hesperius William S. Cooper 1924-11-19 36 San Mateo Ano Nuevo Pt. Comment
  UCSC007263  Juncus lescurii Randall Morgan 1987-4-29 s.n. San Mateo Ravine in 1st big gorge north of 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
  CAS-BOT-BC173697  Juncus occidentalis Peter Rubtzoff 1978-5-18 9170 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Marshy area northwest of Fog Forest. Comment
  UC1601846  Juncus patens J. Burtt Davy 1893-6-22 760 San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC176165  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
  SEINET11789769  Juncus patens W. R. Dudley 1895-1 San Mateo along San Francisquito Creek, Stanford Univ., Santa Cruz Peninsula Comment
  CAS-BOT-BC210052  Juncus phaeocephalus Peter Rubtzoff 1978-7-8 9228 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  RSA796175  Juncus phaeocephalus Peter Rubtzoff 1978-8-17 9260 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UCR280169  Juncus phaeocephalus var. paniculatus Peter Rubtzoff 1978-7-8 9226 San Mateo San Francisco Bay Region, San Bruno Mountains, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 220 Comment
  POM190537  Juncus phaeocephalus var. phaeocephalus D. D. Keck 1932-5-6 1456 San Mateo Belmont. Comment
  JROH4506  Juncus xiphioides John H. Thomas 1967-6-1 12977 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4521  Juncus xiphioides Toni Corelli 2009-7-22 352 San Mateo Jasper Ridge Biological Preserve, Stanford University. South of Road B, Below Dennis Martin Marker site in San Francisquito Creek 71 Comment
  JROH5666  Juncus xiphioides John Rawlings 2011-8-10 0997 San Mateo Jasper Ridge Biological Preserve, Stanford University. Corte Madera Creek delta near open water. 104 Comment
  POM289989  Juncus xiphioides Lyman Benson 1937-7-25 8474 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  UCD18534  Juncus xiphioides Roman Gankin 1950-6-25 1 San Mateo about 2 miles from Alameda de Las Puigas Rd., behind Stanford University, off Sandhill Rd. 152 Comment
  JROH4046  Kickxia spuria John Hunter Thomas 1981-9-24 20753 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5268  Koeleria macrantha John H. Thomas 1968-5-22 14454 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA582055  Koeleria macrantha D. D. Keck 1932-5-6 1476 San Mateo Above Millbrae Highlands Comment
  CAS-BOT-BC273731  Koeleria pyramidata E. McClintock; Phillip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. Slope below Nike station Comment
  CAS-BOT-BC273737  Koeleria pyramidata David D. Keck 1932-5-6 1476 San Mateo Above Millbrae Highlands Comment
  JROH947  Lactuca saligna John Hunter Thomas 1982-9-23 21161 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH949  Lactuca serriola John H. Thomas 1964-11-29 10535 San Mateo Jasper Ridge Biological Preserve, Stanford University; W end of Searsville Dam Comment
  CAS-BOT-BC340639  Lactuca serriola Ned Cahill 1974-5-13 276 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC340705  Lactuca virosa Walter Knight; Irja Knight 1963-9-18 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC339053  Lasthenia californica A. D. E. Elmer 1903-4-1 4507 San Mateo San Bruno Hills Comment
  CAS-BOT-BC339066  Lasthenia californica John Thomas Howell 1933-5-3 11204 San Mateo San Bruno Hills Comment
  CAS-BOT-BC339075  Lasthenia californica Margaret A. Barry 1937-5-1 37 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC339091  Lasthenia californica John H. Thomas 1971-5-2 15825 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  CHSC276  Lasthenia californica J. Turner 1930-5-2 San Mateo Moss Beach. Comment
  CAS-BOT-BC339097  Lasthenia californica J. H. Thomas 1949-4-1 215 San Mateo Hills west of Redwood City Comment
  UC1537021  Lasthenia californica subsp. californica Gordon H. True Jr. 1936-6-7 483 San Mateo top of ocean bluff at cove 2 mi. s Pescadero 15 Comment
  SEINET11811267  Lasthenia chrysostoma Unknown 1932-1 9113 San Mateo Spring Valley Lake Comment
  JEPS67909  Lasthenia glaberrima L. R. Heckard and J. H. Thomas 1972-4-16 2892 San Mateo ca 1.5 s Pulgas Water Temple (sw of Upper Crystal Springs Reservoir, along Old Canada road (private)) 121 Comment
  UC194043  Lasthenia glabrata subsp. glabrata E. L. Greene 1886-4-5 San Mateo Belmont Comment
  RSA116657  Lasthenia macrantha subsp. macrantha H. L. Mason 1921-6-1 s.n . San Mateo Pebble Beach near Pescadero Comment
  RSA18351  Lasthenia macrantha subsp. macrantha C. B. Wolf 1927-1-29 s.n. San Mateo Pescadero Comment
  CAS-BOT-BC368183  Lasthenia minor V. F. Hesse 1959-4-16 2589 San Mateo Pigeon Point 7 Comment
  RSA51309  Lasthenia minor Peter H. Raven 1950-4-30 1953 San Mateo Montara. 15 Comment
  JROH5875  Lathyrus latifolius Ann Lambrecht 2011-8-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 2 between Trail 5 intersection and culvert Comment
  SD39834  Lathyrus littoralis Edith A. Purer 1932-7-18 4007 San Mateo Half Moon Bay, sand dunes Comment
  SEINET955880  Lathyrus littoralis Ira L. Wiggins 1946-1 11201 San Mateo Sand dunes just above extreme high tide level, Half Moon Bay about 3 miles N. of Town. Comment
  JROH2035  Lathyrus vestitus var. vestitus John Hunter Thomas 1983-4-14 21404 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UC85315  Lathyrus vestitus var. vestitus C. F. Baker 1902-1-15 240 San Mateo w side Kings Mountain Comment
  JROH2037  Lathyrus vestitus var. vestitus John Hunter Thomas 1984-4-24 23297 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Sand Hill Road fence Comment
  CDA31708  Lavatera arborea M. K. Beyers, G. F. Hrusa, P. Woods, D. Orozco 2010-4-17 s.n. San Mateo Brisbane: Underneath northbound Highway 101 exit (426B), adjacent to the Radisson Hotel s parking lot. Approximately, 700 feet northwest of San Francisco Bay s west shores. Comment
  RSA254232  Lavatera arborea Robert A. Norris 1975-3-31 2291 San Mateo Near Crocker Avenue, San Bruno Mountains. Comment
  CAS-BOT-BC323158  Layia chrysanthemoides David D. Keck 1932-4-29 1450 San Mateo Redwood City. Comment
  CAS-BOT-BC323176  Layia chrysanthemoides J McMurphy 1909-6-13 s.n. San Mateo San Bruno HIlls Comment
  CAS-BOT-BC323181  Layia chrysanthemoides K. Curran 1885-4-1 s.n. San Mateo Millbrae Comment
  CAS-BOT-BC321065  Layia gaillardioides Alice M. King 1917-4-24 s.n. San Mateo San Bruno Hills Comment
  UC30645  Layia gaillardioides J. Burtt Davy 1895-4-20 1081 San Mateo San Mateo Creek Comment
  CAS-BOT-BC321090  Layia gaillardioides James I. McMurphy 1909-5-26 s.n. San Mateo Above La Honda Comment
  CAS-BOT-BC327483  Layia hieracioides Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain; Devil's Arroyo Comment
  JROH987  Layia hieracioides John Hunter Thomas 1977-6-16 18772 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA124759  Layia hieracioides John H. Thomas 1958-5-10 7158 San Mateo Jasper Ridge. About 5 miles SW of Palo Alto. 152 Comment
  RSA15482  Layia hieracioides L. S. Rose 1936-5-28 36309 San Mateo Emerald lake, W. of Redwood City 91 Comment
  UC828938  Layia hieracioides John Thomas Howell 1938-5-1 13769 San Mateo Colma Canyon Comment
  CAS-BOT-BC382089  Layia platyglossa A. D. E. Elmer 1903-4-1 5022 San Mateo Crystal Springs Lake Comment
  UC204134  Layia platyglossa A. D. E. Elmer 1903-4-1 5022 San Mateo Crystal Springs Lake Comment
  UC30671  Layia platyglossa J. Burtt Davy 1895-4-20 1052 San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC382078  Layia platyglossa James I. McMurphy 1909-5-26 s.n. San Mateo Above La Honda Comment
  CAS-BOT-BC382225  Layia platyglossa John Thomas Howell 1974-4-11 17130 San Mateo Serpentine area to the SE of Canada Road and Edgewood Road; NW of Woodside 152 Comment
  CAS-BOT-BC534548  Lemna gibba W. R. Dudley 1898-1-5 s.n. San Mateo Santa Cruz Peninsula, between Pescadero and Swanton Comment
  POM193860  Lemna valdiviana Roxana S. Ferris 1920-10-8 2100 San Mateo Santa Cruz Mountain peninsula: first mud lake, Coal Mine Ridge Comment
  CAS-BOT-BC221526  Lepechinia calycina Miss E. Cannon No date on label s.n. San Mateo Near Moss Beach Comment
  HSC23973  Lepechinia calycina Mary Katherine Wicksten 1971-6-18 1 San Mateo Huddart Park along Chickadee Nature Trail 244 Comment
  JROH2791  Lepechinia calycina D. E. Breedlove 1971-5-31 19348 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  RSA218029  Lepechinia calycina Walter Knight, I. Knight 1964-5-19 s.n. San Mateo Crocker Hills, San Bruno Mountain. Comment
  UCLA64405  Lepechinia calycina David D. Keck 1932-5-25 1779 San Mateo Hills two miles west fo Belmont Comment
  CAS-BOT-BC89130  Lepidium didymum J. H. Thomas 1958-8-1 7370 San Mateo About 0.5 mile north of mouth of Pescadero Creek. 0 Comment
  CAS-BOT-BC89137  Lepidium didymum Malcom A. Nobs; Stanley Galen [S. Galen] Smith 1949-8-26 1594 San Mateo Marshes at the south of Pescadero Creek. Comment
  CAS-BOT-BC89216  Lepidium draba Sister Anna 1950-4-1 s.n. San Mateo Belmont Academy. Comment
  UCD115701  Lepidium latifolium John Thomas Howell 1978-7-18 53189 San Mateo Airport Sheraton, Airport Blvd., Burlingame. Comment
  CAS-BOT-BC12598  Lepidium nitidum H. A. Dutton 1900-2-1 s.n. San Mateo Santa Cruz Peninsula. Woodside. Comment
  CAS-BOT-BC12746  Lepidium oxycarpum David D. Keck 1932-3-24 1401 San Mateo Redwood City. At border of San Francisco Bay. Comment
  JROH5275  Leptochloa fusca subsp. uninervia John Hunter Thomas 1980-11-27 20179 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta in Searsville Lake (formed by Corte Madera Creek). Comment
  CAS-BOT-BC226603  Leptosiphon ambiguus W. R. Dudley 1909-4-27 s.n. San Mateo Santa Cruz Mountain Peninsula. Whipple Rd. between Woodside and Crystal Spr. Lakes Comment
  JROH3177  Leptosiphon androsaceus Toni Corelli 2003-6-23 263 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 1 83 Comment
  SD3902  Leptosiphon androsaceus U. S. Grant IV Jun 1925 San Mateo Near La Honda Comment
  OBI43249  Leptosiphon androsaceus Delzie Demaree 1932-4-27 9020 San Mateo Dry fields above Spring Valley Lakes Comment
  POM279122  Leptosiphon androsaceus Lyman Benson 1928-4-16 156 San Mateo Summit Searsville Ridge. Stanford University. 152 Comment
  SEINET3861922  Leptosiphon croceus Genevieve K. Walden 2009-6-22 203 San Mateo Moss Beach State Beach, Wylvale Rd. on cliff above beach.; 0 Comment
  UC176059  Leptosiphon croceus Miss Kate Cole May 1914 San Mateo Moss Beach Comment
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Feb 8 2016
  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
  RSA0103660  Leptosiphon parviflorus Arthur L. Cohen 1935-4-21 629 San Mateo Jasper Ridge, Stanford U. Santa Cruz Range; San Francisco Bay watershed. 152 Comment
  SD38813  Leptosiphon parviflorus Edith A. Purer 1933-4-25 3640 San Mateo Comment
  RSA0103661  Leptosiphon rosaceus P. H. Raven 1950-4-30 1954 San Mateo Montara. 9 Comment
  CAS-BOT-BC123030  Lessingia arachnoidea Charles Fuller Baker 1902-9-2 1548 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC324051  Lessingia arachnoidea Lewis S. Rose 1964-9-9 64075 San Mateo Crystal Springs Lakes west of San Mateo 243 Comment
  CAS-BOT-BC324057  Lessingia arachnoidea John Thomas Howell 1927-9-10 3099 San Mateo Crystal Springs Lake 213 Comment
  CAS-BOT-BC325500  Lessingia arachnoidea W. Spence 1960-7-2 552 San Mateo 1 mile north of Dam, Route 5, Crystal Springs Lake Comment
  POM55553  Lessingia arachnoidea C. F. Baker 1902-09 s.n. San Mateo Crystal Springs Lake. Comment
  UCR70748  Lessingia arachnoidea David D. Keck 1931-10-5 1280 San Mateo San Francisco Bay Region, Crystal Springs Lake, east side 168 Comment
  UC1745126  Lessingia arachnoidea Leslie Zander 2000-9-14 San Mateo just W of Crystal Springs Road (N or Tartan Trail Rd.); Hillsborough Comment
  RSA0001373  Lessingia bakeri C. F. Baker 1902-10-20 1834 San Mateo Searsville. Comment
  CAS-BOT-BC324072  Lessingia germanorum Elizabeth McClintock; Paul Reeberg 1989-8-19 s.n. San Mateo San Bruno Mountains, Reservoir Hill. 137 Comment
  JROH1011  Lessingia glandulifera var. glandulifera John H. Thomas 1967-5-31 12924 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC324178  Lessingia hololeuca Ned Cahill 1974-10-8 381 San Mateo near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City Comment
  CAS-BOT-BC324182  Lessingia hololeuca Lewis S. Rose 1964-9-5 64072 San Mateo Emerald Lake, W of Redwood City 152 Comment
  UCR66541  Lessingia hololeuca L. S. Rose 1936-9-19 36732 San Mateo Crystal Springs Lake 152 Comment
  SEINET7883357 Image available Lessingia hololeuca var. arachnoidea L. S. Rose 1941-1 41434 San Mateo San Mateo Canyon Comment
  JROH5964  Lessingia pectinata var. tenuipes Ann Lambrecht, Alice Cummings 2017-6-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Road F opposite unmarked spur trail into chaparral 159 Comment
  JROH1038  Leucanthemum vulgare John Rawlings 2012-6-19 1135 San Mateo Jasper Ridge Biological Preserve, Stanford University. South bank of dry stream bed of Bear Creek at Serpentine. 84 Comment
  CAS-BOT-BC342095  Leucanthemum vulgare John Thomas Howell 1949-7-4 25356 San Mateo On Skyline Blvd., north of Millbrae Comment
  UCD163782  Leucanthemum vulgare Peter Rubtzoff 1988-5-12 9922 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road between Bog Trail and Saddle Trail junctions. Comment
  CAS-BOT-BC444392  Lewisia rediviva John H. Thomas 1969-4-24 14901 San Mateo Near Canada College, Redwood City, near Farm Hill Drive. Comment
  CAS-BOT-BC273564  Leymus californicus A. D. E. Elmer 1903-6-1 4700 San Mateo Toward Crystal Springs Lake from San Mateo Comment
  UCD61335  Leymus californicus P. B. Kennedy 1916-5-7 San Mateo Crocker Estate, Burlingame. Comment
  RSA108328  Leymus condensatus Frank W. Gould 1941-5-10 1293 San Mateo 1 mile north of Santa Cruz County line on Highway 1. Comment
  UCD64593  Leymus mollis David L. Hanson 1976-3-23 San Mateo Half Moon Bay. Comment
  CAS-BOT-BC436530  Ligusticum apiifolium Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain, below parking lot Comment
  SEINET6633381  Ligusticum apiifolium A. D. E. Elmer 1903-1 4803 San Mateo San Mateo Comment
  SD38189  Limnanthes douglasii Edith A. Purer 1933-5-17 3626 San Mateo Skyline Blvd. above Spring Valley Lakes. Comment
  CDA4898  Limnanthes douglasii subsp. ornduffii T. W. Heinrich 2004-4-21 s.n. San Mateo Adjacent to Highway 1 and immediately east of Half Moon Bay Airport, on Cabrillo Ranch property, Moss Beach. 0 Comment
  UC1174507  Linanthus ambiguus Le Roy Abrams 1902-5-4 2415 San Mateo Woodside Comment
  UC205782  Linanthus ambiguus C. F. Baker 1902-5-4 751 San Mateo Woodside Comment
  CDA982  Linanthus liniflorus D. G. Kelch 2002-5-6 2 .011 San Mateo Crystal Springs Reservoir. Comment
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Oct 24 2021
  JEPS30889  Linanthus liniflorus J. H. Thomas 1958-5-13 7166 San Mateo about 3 mi sw San Mateo (along Skyline Blvd, 0.3 mi s of intersection of Skyline Blvd with Black Mt Rd) 304 Comment
  UC133890  Linanthus liniflorus C. F. Baker 1902-5-4 760 San Mateo Woodside Comment
  UC23690  Linanthus liniflorus J. Burtt Davy 1895-4-20 1071 San Mateo Crystal Springs Lake Comment
  UC517491  Linanthus liniflorus John Thomas Howell 1933-5-26 11344 San Mateo Crystal Springs Lake Comment
  UC73618  Linanthus liniflorus Milo S. Baker 1904-5-15 San Mateo near Burlingame Comment
  RSA217987  Linaria canadensis var. texana Phillip Wheeler 1965-5-11 s.n. San Mateo West ravine of Pig Ranch Canyon. Comment
  JROH2940  Linum bienne Ann Lambrecht 2002-5-18 2 San Mateo Jasper Ridge Biological Preserve, Stanford University; Sand Hill Road fence line Comment
  UC198505  Linum usitatissimum Katharine Brandegee 1917-8-29 San Mateo Moss Beach Comment
  CAS-BOT-BC389719  Lithocarpus densiflorus Virginia Welch 1972-9-25 63 San Mateo King Mt. Rd. above Huddart Park Entrance Comment
  UC1135271  Lithocarpus densiflorus C. M. Belshaw 1935-1-25 1470 San Mateo 2.5 mi nw Sierra Moreno Peak; Santa Cruz Quad. 609 Comment
  UC1135272  Lithocarpus densiflorus C. M. Belshaw 1935-1-25 1472 San Mateo 2.5 mi nw Sierra Moreno Peak; Santa Cruz Quad. 609 Comment
  CAS-BOT-BC36066  Lithocarpus densiflorus var. densiflorus W. R. Dudley 1905-9-24 s.n. San Mateo [Cup] Gulch, upper part of Alpine grade, Black Mountain Comment
  SEINET3161060  Lithophragma affine L. S. Rose 1939-4-12 39062 San Mateo Crystal Springs Lake 152 Comment
  CAS-BOT-BC430769  Lithophragma affine W. R. Dudley 1900-3-17 s.n. San Mateo Redwood stage road below Hookerville Comment
  JROH3891  Lithophragma affine John Hunter Thomas 1983-4-5 21318 San Mateo Jasper Ridge Biological Preserve, Stanford University; below rattlesnake rock Comment
  CAS-BOT-BC436217  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
  JEPS23933  Lithophragma heterophyllum Volney Rattan Apr 1883 San Mateo Millbrae Comment
  POM142569  Lithophragma heterophyllum C. F. Baker 1902-4-6 651 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC60214  Lobularia maritima Elizabeth McClintock 1967-9-24 s.n. San Mateo San Bruno Mountain. Crocker Avenue. Comment
  CAS-BOT-BC342309  Logfia filaginoides Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountain. South Power Line Ridge Comment
  JROH738  Logfia gallica John Hunter Thomas 1977-6-16 18750 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old racing oval Comment
  CAS-BOT-BC342467  Logfia gallica Peter H. Raven 1950-6-3 2198 San Mateo Along Millbrae Ave., Millbrae 60 Comment
  CAS-BOT-BC173829  Lolium multiflorum Peter Rubtzoff 1976-6-13 8629 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. In area of uppermost part of East Fork Colma Creek, at the northwest corner of Fog Forest. Comment
  UCD66190  Lolium multiflorum J. M Tucker; W. A. Harvey 1948-6-28 1700 San Mateo Ca. 3 miles north of Pescadero. Comment
  JEPS17134  Lomatium dasycarpum subsp. dasycarpum W. L. Jepson 1914-3-22 5737 San Mateo Redwood City Comment
  JROH255  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1955-5-6 5012 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH264  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1973-4-20 16582 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH265  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1977-4-28 18565 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC75215  Lomatium dasycarpum subsp. dasycarpum C. F. Baker 1902-4-6 461 San Mateo Crystal Springs Lake Comment
  JROH254  Lomatium dasycarpum subsp. dasycarpum Anne Hornby 1952-5-10 111 San Mateo Jasper Ridge Biological Preserve, Stanford University; in hills above Searsville Lake Comment
  RSA15253  Lomatium dasycarpum subsp. dasycarpum C. B. Wolf 1927-2-19 214 San Mateo Spring Valley, on Belmont to Halfmoon Bay road Comment
  JROH273  Lomatium macrocarpum John H. Thomas 1956-4-7 5625 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1073368  Lomatium macrocarpum George B. Rossbach 1955-3-12 370 San Mateo s.e. end Buriburi Ridge (n.w. side San Mateo Creek); San Mateo Creek 76 Comment
  OBI8917  Lomatium macrocarpum Elena R. Goodwin 2014-5-1 s.n. San Mateo Redwood City Comment
  JROH279  Lomatium utriculatum John H. Thomas 1972-5-5 16081 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD38866  Lomatium utriculatum McCallum 1933-5-31 3691 San Mateo Spring Valley Lakes, along roadside Comment
  POM132981  Lomatium vaginatum C. F. Baker 1902-4-8 2751 San Mateo San Andreas Lake Comment
  CAS-BOT-BC240429  Lonicera hispidula W. R. Dudley 1895-9-15 s.n. San Mateo El Corte Madera, Canon [Canyon], Sta Cruz Mts Comment
  UC306767  Lonicera involucrata var. ledebourii A. D. E. Elmer June, 1903 4272 San Mateo Lake San Andreas Comment
  UC729847  Lonicera involucrata var. ledebourii Carl B. Wolf 1929-5-25 3733 San Mateo 2 mi from Pescadero; Alpine Creek Comment
  CAS-BOT-BC198596  Lotus R. F. Hoover 1964-9-10 9290 San Mateo Devil's Slide, between Pedro Point and Montara Comment
  JEPS34466  Lotus benthamii L. R. Heckard, and R. Bacigalupi 1963-7-2 1335 San Mateo trail to Montara Peak (nw slope), above old county road Montara Peak 335 Comment
  UCR101648  Lotus corniculatus George K. Helmkamp, E. A. Helmkamp 1998-5-16 3742 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  UCR121554  Lotus corniculatus George K. Helmkamp, E. A. Helmkamp 1999-6-28 4990 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  JEPS101841  Lotus junceus var. biolettii Dean W. Taylor 2000-4-25 17439 San Mateo along dirt road 1 mi W of North Peak, Montara Mountain 411 Comment
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Oct 18 2006
  RSA195686  Lotus micranthus John H. Thomas 1967-5-10 12842 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  SEINET12151380  Lotus stipularis Unknown 1932-1 9152 San Mateo rd to Kings Mt Comment
  RSA788951  Lotus tenuis Peter Rubtzoff 1976-6-13 8631 San Mateo San Bruno Mountains. Saddle area on N side of Guadalupe Canyon Parkway, west of Radio Road junction, margin of marshy area NW of Fog Forest. Comment
  POM16713  Lotus wrangelianus A. D. E. Elmer 1903-05 4741 San Mateo Belmont. Comment
  RSA132358  Lotus wrangelianus John H. Thomas 1955-5-6 4991 San Mateo Jasper Ridge about 3.5 miles southwest of Stanford University. 152 Comment
Read comments
Sep 19 2011
  POM276637  Lotus wrangelianus Lyman Benson 1930-5-1 2052 San Mateo Stanford University. 107 Comment
  UC311390  Lupinus A. D. E. Elmer May 1903 4827 San Mateo Portola Comment
  UC1129419  Lupinus affinis H. S. Yates 1935-5-8 5209 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. 579 Comment
  SEINET12154347  Lupinus albicaulis L. K. Henry 1956-1 s.n. San Mateo along Pacific Ocean, at Pigeon Pt. Lighthouse on Rt 1 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-BC195811  Lupinus albifrons var. albifrons Fred Hemphill 1973-4-8 719 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC195789  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-21 48459 San Mateo Junction San Bruno Road 3, 0.8 miles south. Highway 5 Comment
  CAS-BOT-BC196106  Lupinus albifrons var. collinus Javier Penalosa 1963-3-9 2685 San Mateo 1/2 mi. east of 1314 ft. summit 304 Comment
  CAS-BOT-BC196115  Lupinus albifrons var. collinus Charles Piper Smith 1908-4-26 1417 San Mateo S. San Francisco - north, base of San Bruno Mt. Comment
  CAS-BOT-BC196122  Lupinus albifrons var. collinus J. F. Emmel 1969-3-19 146 San Mateo Crest of San Bruno Mts., 2 air miles west of Sierra Point 304 Comment
  RSA0060733  Lupinus albifrons var. collinus Daisie Huang 2006-8-6 06080601 San Mateo Fifield Ridge, inside San Francisco Water Authority land. 386 Comment
  SEINET10484532  Lupinus albifrons var. collinus Elizabeth M. McClintock 1963-6-9 McClintock 134 San Mateo San bruno mountain. Exposed slopes below top of mountain Comment
  CAS-BOT-BC196431  Lupinus arboreus Charles Piper Smith 1922-4-1 3462 San Mateo Montara Mountain Comment
  SEINET10451219  Lupinus arboreus Harold W. Rickett 1928-7-10 Rickett s.n. San Mateo La Honda, CA. Comment
  SEINET10488460  Lupinus arboreus Didley 1906-6-10 DIDLEY s.n. San Mateo Santa cruz mountain peninsula. By road, s cabil ridge Comment
  SEINET10488488  Lupinus arboreus Thomas 1967-5-2 Thomas 12787 San Mateo San bruno mountain. Ca 0.25 mile up market street from new school in canyon. Shrubby Comment
  POM11077  Lupinus arboreus var. arboreus A. D. E. Elmer 1903-05 4414 San Mateo Colma. Comment
  POM349927  Lupinus arboreus var. arboreus Ynez Whilton Winblad 1934-7-4 s.n. San Mateo Taken in the sand dunes at Pescadero Beach. Comment
  UC155231  Lupinus bicolor A. A. Heller 1911-4-12 10251 San Mateo near Stanford University; near Stanford University Comment
  HSC43288  Lupinus bicolor Dunn 1946-5-16 2596 San Mateo 1 block N of Sloat Blvd. at Vale Ave. Comment
  POM10690  Lupinus densiflorus var. palustris C. F. Baker 1902-5-1 850 San Mateo Crystal Springs Lake. Comment
  SEINET12154553  Lupinus formosus Unknown 1933-1 10508 San Mateo nr Belmont Comment
  SEINET11071961 Image available Lupinus latifolius A. A. Heller 1907-5-23 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  UC15897  Lupinus latifolius var. latifolius Alice Eastwood May 1896 San Mateo Crystal Springs Comment
  UCD23304  Lupinus microcarpus var. densiflorus Alan T. Whittemore 1976-5-29 106 San Mateo Crystal Springs Canyon, about 1/2 mile below (East of) dam. 39 Comment
  JROH2130  Lupinus nanus John H. Thomas 1976-4-2 18073 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2132  Lupinus nanus John Hunter Thomas 1977-6-16 18762 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5732  Lupinus nanus John H. Thomas 1976-4-30 18100 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UCD109095  Lupinus nanus Carl B. Mankinen 1967-4-5 s.n. San Mateo on State Highway 1, 1.8 miles northwest of Gazos Creek. Comment
  POM276299  Lupinus polycarpus Lyman D. Benson 1934-3-31 5747 San Mateo Menlo Park 30 Comment
  POM296673  Lupinus polycarpus L. S. Rose 1942-3-30 42006 San Mateo Mills Field 2 Comment
  SEINET10486158  Lupinus polycarpus Donald E. Bright 1962-4-16 Bright 223 San Mateo Disturbed roadside, along hwy. 17, 15 Mi ne of santa cruz. 549 Comment
  HSC76497  Lupinus vallicola subsp. apricus Charles Piper Smith 1946-3-26 46118 San Mateo Wood side, 2.3 mi. N Comment
  UC1129743  Lupinus variicolor H. S. Yates 1935-2-3 5005 San Mateo 1/2 mi se Pigeon Pt.; Santa Cruz Quad. Comment
  SEINET10489109  Lupinus variicolor Mcclintock 1963-6-23 MCCLINTOCK s.n. San Mateo San bruno mtn. Lower part of colma canyon. Comment
  SEINET12154795  Lupinus variicolor M. T. Doutt 1931-1 423 San Mateo Skyline Blvd, W of Hillbrae Comment
  POM290438  Luzula comosa Arthur L. Cohen 1935-4-21 634 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  CAS-BOT-BC441367  Luzula subsessilis Alice Eastwood 1914-3-12 s.n. San Mateo San Bruno Hills Comment
  CAS-BOT-BC441370  Luzula subsessilis John H. Thomas 1965-4-29 10611 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC441361  Luzula subsessilis Elizabeth McClintock; Philip Wheeler 1967-5-14 34 San Mateo San Bruno Mountain: east side of mountain, above Harold Ave., Brisbane. Slope above Philip Wheeler's house Comment
  RSA0034072  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
  JROH2944  Lythrum hyssopifolia John H. Thomas 1967-11-5 14126 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2952  Lythrum hyssopifolia John Hunter Thomas 1981-7-12 20688 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat dock 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
  JROH2954  Lythrum hyssopifolia John H. Thomas 1967-6-1 12955 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC342587  Madia Fred Hemphill 1973-4-15 654 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC342590  Madia Cherie Wetzel 1969-7-8 926 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC343910  Madia elegans Ned Cahill 1974-10-8 379 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  UC729632  Madia elegans Carl B. Wolf 1929-5-17 3713 San Mateo 1 mi w Skyline Blvd. (on Alpine Road) 304 Comment
  CAS-BOT-BC343901  Madia elegans George Oberlander 1949-9-25 369 San Mateo San Francisco Watershed Reserve. North of San Andreas L. Comment
  POM362144  Madia elegans subsp. elegans E. A. Purer 1933-8-13 5421 San Mateo Santa Clara Valley, near Belmont Comment
  CAS-BOT-BC344495  Madia exigua James I. McMurphy 1907-5-19 s.n. San Mateo Coal Mine Ridge Comment
  JROH1043  Madia exigua John H. Thomas 1967-5-31 12925 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1049  Madia exigua John Hunter Thomas 1977-6-16 18779 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1053  Madia exigua John Hunter Thomas 1981-5-19 20609 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1059  Madia exigua John Hunter Thomas 1983-6-2 22333 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1065  Madia exigua John Hunter Thomas 1992-5-25 25349 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA107074  Madia exigua K. C. Rose 1956-5-28 56083 San Mateo Emerald Lake hill W of Redwood City. 183 Comment
  CAS-BOT-BC344486  Madia exigua H. A. Dutton 1900-5-6 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside Comment
  CAS-BOT-BC343323  Madia gracilis John H. Thomas 1967-5-2 12808 San Mateo San Bruno Mountain. About 1/4 mile up Market St. from new school in canyon Comment
  JROH1067  Madia gracilis John H. Thomas 1958-5-10 7142 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1080  Madia gracilis John Hunter Thomas 1981-5-21 20645 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC343331  Madia gracilis George Oberlander 1949-7-24 270 San Mateo San Francisco Watershed Reserve. Near Pilarcitos Lake Comment
  POM190265  Madia gracilis D. D. Keck 1932-4-29 1455 San Mateo Mills Field Airport, Bayshore Highway Comment
  RSA176604  Madia madioides John H. Thomas 1961-6-20 9555 San Mateo Portola State Park, near junction of Peters and Pescadero Creeks 152 Comment
  CAS-BOT-BC345109  Madia sativa Louis F. Pitelka 1974-5-28 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  CAS-BOT-BC345126  Madia sativa Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon Comment
  JROH1098  Madia sativa John H. Thomas 1963-6-23 10163 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of ridge Comment
  SBBG27925  Madia sativa C. B. Wolf 1927-6-29 561 San Mateo coast S of Pescadero at Pebble Beach Comment
  CHSC20345  Maianthemum racemosum L. A. Wright Jr. 1971-4-4 21 San Mateo 0.6 miles on Bean Hollow Road off of Pescadero Road, ca. 1.0 mi e of Highway 1. About 10 ft off of the n edge of the road. 60 Comment
  JROH4695  Maianthemum racemosum John H. Thomas 1964-4-19 10325 San Mateo Jasper Ridge Biological Preserve, Stanford University. Area below dam in among redwoods near creek Comment
  JROH4697  Maianthemum racemosum John Hunter Thomas 1981-4-5 20259 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC512106  Maianthemum racemosum subsp. amplexicaule George Oberlander 1950-3-18 583 San Mateo Pilarcitos Canyon; San Francisco Watershed Reserve Comment
  CAS-BOT-BC512115  Maianthemum racemosum subsp. amplexicaule Ned Cahill 1974-5-13 251 San Mateo Chaprral near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  JROH4712  Maianthemum stellatum John Hunter Thomas 1978-7-8 19256 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM169289  Maianthemum stellatum C. F. Baker 1903-4-8 1915 San Mateo San Andreas Lake Comment
  HSC23889  Maianthemum stellatum Mary Katherine Wicksten 1971-7-2 146 San Mateo Huddart Park at Miwok area Comment
  SD27772  Maianthemum stellatum Carl B. Wolf 1927-4-3 250 San Mateo 1 mile above La Honda. 244 Comment
  UC138331  Malacothamnus aboriginum J. W. Congdon 1902-7-20 San Mateo Spring Valley Comment
Read comments
Aug 31 2006
  SEINET7248026  Malva arborea D. R. Kaplan 1961-1 s.n. San Mateo 100 ft. East of Moss Beach Comment
  UCD116405  Malva arborea Ellen Dean; Tom Starbuck, Margaret Starbuck 2005-10-16 2745 San Mateo Town of Miramar, N of Half Moon Bay. Along Mirada Rd. on coastal bluff overlooking beach. Comment
  JROH2966  Malva nicaeensis John H. Thomas 1970-7-5 15672 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA226758  Malva parviflora I. L. Wiggins 1969-5-25 21024 San Mateo On vacant lot at corner of Woodland Avenue and Pope Street, Menlo Park. Comment
  CHSC1037  Malva sylvestris L. Lancelot 1930-5-3 San Mateo Moss Beach. Comment
  CDA34450  Marah fabacea M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 879 San Mateo Pacifica: San Pedro Valley County Park, at Brooks Creek Trail trailhead, near visitor center's parking lot. 74 Comment
  CDA34452  Marah oregana M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 872 San Mateo Pacifica: San Pedro Valley County Park, along Brooks Creek Trail. 148 Comment
  JROH620  Matricaria discoidea John Hunter Thomas 1978-4-25 19154 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH622  Matricaria discoidea John Hunter Thomas 1981-5-8 20566 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
  JROH619  Matricaria discoidea John Hunter Thomas 1977-6-16 18796 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC238366  Maurandella antirrhiniflora James Henrickson 1973-5-27 10234 San Mateo 6 (air) miles SE of Kelso in limestone canyon above Cornfield Spring in N side of Providence Mts. Comment
Read comments
Oct 4 2017
  POM176886  Meconella californica W. R. Dudley 1894-3-26 s.n. San Mateo San Mateo to Crystal Springs Reservoir, Santa Cruz Mountain Peninsula Comment
  POM149359  Meconella californica A. D. E. Elmer 1903-04 4499 San Mateo San Mateo, toward Crystal Springs Comment
  JROH2174  Medicago polymorpha John Hunter Thomas 1988-5-5 24451 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2170  Medicago polymorpha John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA101048  Medicago sativa G. Oberlander 1949-9-25 382 San Mateo Lower Crystal Springs Lake, San Francisco Watershed Reserve. Comment
  CAS-BOT-BC269476  Melica californica W. R. Dudley 1906-5-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Near San Mateo Comment
  CAS-BOT-BC269481  Melica californica Walter Knight; Irja Knight 1965-5-15 s.n. San Mateo San Bruno Mountain. Pig Ranch Ravine Comment
  CDA9441  Melica californica D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  UC1738811  Melica californica var. californica Dean W. Taylor 1988-3-30 9489 San Mateo San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest; right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain 176 Comment
  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
  JROH2188  Melilotus indicus John H. Thomas 1974-5-3 17238 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2190  Melilotus indicus John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2192  Melilotus indicus John Hunter Thomas 1982-5-18 20933 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC583160  Mentha canadensis Lewis S. Rose 1936-9-13 36730 San Mateo Granada 1 Comment
  JROH2804  Mentha pulegium M. N. Paulson 1914-10-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA31212  Mercurialis annua J. Eide 2010-2-19 PDR# 1527850 San Mateo East Palo Alto: in residential garden. 0 Comment
  UCD142325  Mercurialis annua T. C. Fuller 1958-10-16 1444 San Mateo Pedro Valley, E of Sanchez Adobe House, S of Linda Mar Blvd. Comment
  CAS-BOT-BC438140  Mesembryanthemum nodiflorum William Anderson 1968-7-25 s.n. San Mateo At west approach of Dumbarton Bridge on south side of road. Comment
  JROH1119  Micropus californicus var. californicus John H. Thomas 1958-5-10 7152 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC348569  Micropus californicus var. californicus Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  RSA176780  Microseris bigelovii John H. Thomas 1963-5-20 10146 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  UCD68979  Microseris douglasii P. Rodriguez-Rojo 1997-3-27 San Mateo Jaspen Ridge. Serpentine annual grasslands. UTM: 10SEM4168 155 Comment
  CAS-BOT-BC349020  Microseris douglasii subsp. douglasii LeRoy Abrams 1902-5-4 2421 San Mateo Woodside Comment
  JROH1141  Microseris douglasii subsp. douglasii John H. Thomas 1966-4-21 11562 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1151  Microseris douglasii subsp. douglasii John Hunter Thomas 1992-5-5 25211 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC92164  Microseris douglasii subsp. douglasii C. F. Baker 1902-5-4 808 San Mateo Woodside; ; Woodside, San Mateo Co. Comment
  CAS-BOT-BC349018  Microseris douglasii subsp. douglasii W. R. Dudley 1906-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula. Alpine Road near Strawberry Bend Comment
  POM289996  Microseris douglasii subsp. douglasii Arthur L. Cohen 1935-4-21 621 San Mateo Jasper Ridge, San Francisquito Creek. 122 Comment
  CAS-BOT-BC349143  Microseris douglasii subsp. tenella Philip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Buckeye Canyon Comment
  POM53382  Microseris douglasii subsp. tenella C. F. Baker 1902-5-4 756 San Mateo Woodside. Comment
  CAS-BOT-BC349139  Microseris douglasii subsp. tenella K. L. Chambers 1953-5-12 462 San Mateo 3.2 mi. n. of Woodside on road to Crystal Springs Lake Comment
  RSA119749  Microsteris gracilis subsp. humilis James I. McMurphy 1907-4-27 s.n. San Mateo Kings Mountains Comment
  RSA130970  Mimulus aurantiacus var. aurantiacus W. R. Dudley 1895-6-14 s.n. San Mateo Top of ridge near Searsville Dam. Comment
  RSA1950  Mimulus aurantiacus var. aurantiacus Carl B. Wolf 1930-11-5 1804 San Mateo one-half way up east side of the La Honda Grade, Santa Cruz Mtns. 305 Comment
  UC567220  Mimulus guttatus H. S. Yates 1935-5-7 5217 San Mateo 2 mi s Pescadero; Santa Cruz Quadrangle 60 Comment
  SEINET8374162  Mimulus guttatus A. D. E. Elmer 1903-1 4857 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC388835  Minuartia douglasii John H. Thomas 1971-5-2 15813 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  CAS-BOT-BC388829  Minuartia douglasii W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Crystal Springs Lake Comment
  JROH1708  Minuartia douglasii John Hunter Thomas 1991-5-2 25011 San Mateo Jasper Ridge Biological Preserve, Stanford University; near exclosure Comment
  JEPS27350  Moehringia macrophylla Rimo Bacigalupi with L. R. Heckard and Jim Roof 1961-4-24 7611 San Mateo just below rocky spur due n of true summit San Bruno Mountain (directly below and ne of KQED radio power station); due n of true summit of San Bruno Mountain 342 Comment
  CAS-BOT-BC214082  Monardella villosa Cherie Wetzel 1969-6-20 887 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC214063  Monardella villosa Lewis S. Rose 1965-6-15 65080 San Mateo South of parking lot near summit, San Bruno Mountain 365 Comment
  CAS-BOT-BC214074  Monardella villosa Mrs. E. C. Sutliffe 1934-7-12 s.n. San Mateo Ocean Shore Road Comment
  CAS-BOT-BC214078  Monardella villosa Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo Quarry 4, San Bruno Mountain Comment
  CAS-BOT-BC214089  Monardella villosa H. M. Hall 1924-1-1 11958 San Mateo S.W. side Montara Mt. Comment
  RSA218030  Monardella villosa Elizabeth McClintock, Carlyn Halde 1963-6-23 s.n. San Mateo East-facing slope below parking lot, San Bruno Mountain Comment
  JEPS127870  Monardella villosa subsp. villosa Adam C. Schneider 2013-5-17 154 San Mateo Crystal Springs Reservoir Comment
  JEPS127892  Monardella villosa subsp. villosa Adam C. Schneider with C. Matt Guilliams and Will Freyman 2013-6-24 306 San Mateo Crystal Springs Reservoir Comment
  JROH2839  Monardella villosa subsp. villosa John H. Thomas 1973-6-10 16822 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC25530  Monardella villosa subsp. villosa J. Burtt Davy 1893-6-17 770 San Mateo Belmont South Coast Ranges Comment
  RSA101034  Montia fontana G. Oberlander 1950-4-16 632 San Mateo Along stream below San Andreas dam, San Francisco Watershed Reserve Comment
  UC119712  Muilla maritima C. F. Baker 1902-3-30 423 San Mateo Crystal Springs Lake Comment
  JROH1399  Myosotis latifolia John Rawlings 2007-4-1 0986 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2, 500 yards east of Zoology Cabin site. 69 Comment
  RSA152078  Myosotis latifolia John H. Thomas 1962-5-12 9332 San Mateo San Bruno Mountain. 244 Comment
  CAS-BOT-BC166663  Myosotis latifolia Peter Rubtzoff 1977-4-16 8949 San Mateo San Bruno Mountains. Comment
  CAS-BOT-BC101774  Myrica californica R. Bacigalupi 1922-3-1 s.n. San Mateo Arroyo de los Frijoles Comment
  CAS-BOT-BC101778  Myrica californica D. E. Breedlove 1973-9-26 35554 San Mateo Pescadero Creek County Park 365 Comment
  CAS-BOT-BC101782  Myrica californica R. Bacigalupi 1922-3-1 s.n. San Mateo near lagoon at Arroyo de los Frijoles Comment
  CAS-BOT-BC101789  Myrica californica J. H. Thomas 1962-3-24 9838 San Mateo Isenberg Ranch near Langley Hill Comment
  JROH6206  Narcissus tazetta Ann Lambrecht 2007-3-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; east of Rd. 20 and south of the Douglas Iris Site. 85 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
  SBBG115413  Nassella pulchra B. Crampton 1962-6-11 6486 San Mateo ca. 5 mi W of Belmont, at jct of Ralston Ave and Skyline Blvd, Pulgas Ridge, along E side of lower Crystal Springs Reservoir Comment
  CDA20725  Nassella tenuissima L. Kuwahara 2006-6-1 PDR 1359399 San Mateo East side of Skyline Blvd., 3/4 mile south of State Hwy. 92. =Stipa tenuissima, 2nd confirmed natural occurrence, 3 (so far) reported. Potential pest. Comment
  JROH1570  Nasturtium officinale John H. Thomas 1967-6-1 12979 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1572  Nasturtium officinale John Hunter Thomas 1978-7-2 19242 San Mateo Jasper Ridge Biological Preserve, Stanford University; on dam Comment
  JROH1574  Nasturtium officinale John Hunter Thomas 1987-4-7 24177 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Dam Comment
  JROH3207  Navarretia heterodoxa John Hunter Thomas 1986-6-9 24092 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5661  Navarretia heterodoxa John Rawlings 2014-6-7 1261 San Mateo Jasper Ridge Biological Preserve, Stanford University; on both sides of Trail 9 through chamise chaparral east of WIFI station 197 Comment
  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
  SEINET8729365 Image available Navarretia heterodoxa L. S. Rose 1941-1 41269 San Mateo Hills west of Redwood City, Emerald Lake 120 Comment
  POM226867  Navarretia mellita L. R. Abrams 1914-7-1 5224 San Mateo Searsville Lake. Comment
  UCSC000592  Navarretia squarrosa N. K. Carlson 1935-6-29 106 San Mateo 1 mile S. of Pescadero Pescadero 91 Comment
  UC24258  Nemophila menziesii var. atomaria Ivar Tidestrom 1894-3-22 San Mateo Comment
  CAS-BOT-BC219485  Nemophila parviflora L. Constance 1938-5-16 2241 San Mateo Near Crystal Springs Lake, 5 miles southwest of San Mateo 121 Comment
  JROH5550  Nemophila parviflora var. parviflora John Rawlings 2013-4-23 1141 San Mateo Jasper Ridge Biological Preserve, Stanford University; above creek upstream from bridge on Trail 11 139 Comment
  JROH4167  Nicotiana acuminata var. multiflora Herb Dengler 1982-7-26 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. A single plant next to locked gate to S.F. Cr. crossing above Dennis Martin Mill site. Comment
  CAS-BOT-BC140427  Oemleria cerasiformis W. R. Dudley 1900-3-1 s.n. San Mateo By road N. of Summit Springs Comment
  CAS-BOT-BC140433  Oemleria cerasiformis Elizabeth McClintock 1965-3-14 s.n. San Mateo Cable Ravine, San Bruno Mt. Comment
  CAS-BOT-BC140442  Oemleria cerasiformis John H. Thomas 1967-2-9 12400 San Mateo San Bruno, near intersection of Skyline Blvd. and Berkshire Dr. Comment
  CAS-BOT-BC140449  Oemleria cerasiformis W. R. Dudley 1893-4-1 s.n. San Mateo Bear Gulch Road, Santa Cruz Mountains Comment
  JROH3704  Oemleria cerasiformis John H. Thomas 1958-2-15 6983 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC311169  Oemleria cerasiformis A. D. E. Elmer Mar 1903 4579 San Mateo Woodside Comment
  UC676734  Oemleria cerasiformis Reed C. Rollins 1941-2-22 2938 San Mateo about 10 mi nw Palo Alto 152 Comment
Read comments
Apr 10 2013
  POM259822  Oenothera elata subsp. hookeri L. R. Abrams, Ira L. Wiggins 1939-6-3 438 San Mateo 2 miles north of Pigeon Point Lighthouse Comment
  SEINET5548756  Onagraceae H. S. Gentry 1931-1 85 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC499691  Orobanche californica subsp. californica Julia McDonald 1918-7-1 s.n. San Mateo Pescadero Comment
  POM59435  Orobanche californica subsp. californica W. A. Setchell 1909-8-29 173 San Mateo Farallone City, on slopes facing the ocean. Comment
  JROH5801  Orobanche fasciculata John Rawlings 2017-6-12 2102 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 12 on bank just west of first footbridge. 108 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
  CAS-BOT-BC500319  Orobanche uniflora subsp. occidentalis L. R. Abrams 1904-4-10 s.n. San Mateo San Mateo Canyon Comment
  JROH3090  Orobanche vallicola Toni Corelli 2003-11-5 266 San Mateo Jasper Ridge Biological Preserve, Stanford University; in moist woodland above San Francisquito Creek along trail 2 82 Comment
  POM126839  Orthocarpus erianthus var. roseus M. S. Baker 1904-05 s.n. San Mateo Ocean View. Comment
  POM15377  Orthocarpus floribundus A. D. E. Elmer 1903-04 4522 San Mateo South San Francisco. Comment
  RSA516520  Orthocarpus floribundus W. L. Jepson 1919-4-19 8231 San Mateo S San Francisco. Comment
  SEINET12265143  Orthocarpus lithospermoides G. A. McCallum 1933-1 s.n. San Mateo in Spring Valley Comment
  CAS-BOT-BC166730  Oxalis albicans subsp. pilosa Peter Rubtzoff; Roman Gankin 1975-5-21 7964 San Mateo San Bruno Mountains. Saddle area north of Guadalupe Canyon Parkway and west of Radio Road junction. Comment
  CDA28462  Oxalis corymbosa H. Struffenegger, J. Reppas 1974-1-9 San Mateo Podesta Nursery, 1951 Pulgas Avenue, East Palo Alto. 0 Comment
  POM87796  Oxalis oregana L. R. Abrams 1902-3-16 2279 San Mateo Kings Mountain. Comment
  RSA130338  Oxalis oregana M. N. paulson 1915-4-10 s.n. San Mateo Kings Mountain. Comment
  UC137426  Oxalis oregana C. F. B. 1902-3-18 325 San Mateo King's Mountain Comment
  JROH3092  Oxalis oregana M. N. Paulson 1915-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA130344  Oxalis oregana W. R. Dudley 1894-3-26 s.n. San Mateo Santa Cruz Peninsula: Redwoods beyond Kings, Santa Cruz Range Comment
  SEINET6645806  Oxalis oregana R. L. Oliver 1976-4-18 s.n. San Mateo La Honda along highway 84 Comment
  POM177457  Oxalis pes-caprae L. R. Abrams, I. L. Wiggins 1930-11-13 176 San Mateo Along Skyline Blvd. near Colma Comment
  LA14373  Parapholis incurva A. Hornay; 1932-5-29 sn San Mateo San Bruno Comment
  UCSC000079  Parapholis incurva A. Hormay 1932-5-29 16 San Mateo San Bruno 0 Comment
  JROH5343  Paspalum distichum W. R. Dudley 1903-1-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Upper end of Searsville Lake. Comment
  JROH4111  Pedicularis densiflora John H. Thomas 1967-6-1 12970 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM286384  Pedicularis densiflora Lyman Benson 1931-2-28 2610 San Mateo Town: Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 183 Comment
  SBBG32290  Pedicularis densiflora L. S. Rose 1964-3-23 San Mateo Emerald Lake, W of Redwood City 121 Comment
  UC886634  Pedicularis densiflora Lewis S. Rose 1939-4-12 39061 San Mateo Crystal Springs Lake 152 Comment
  JROH4116  Pedicularis densiflora John Hunter Thomas 1981-5-15 20641 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA14207  Pedicularis densiflora Carl B. Wolf 1927-1-24 190 San Mateo 1/2 way up east slope of La Honda Grade, Santa Cruz Mtns. Comment
  CAS-BOT-BC266665  Pedicularis dudleyi J. H. Thomas 1961-5-23 9452 San Mateo Portola State Park, near junction of Peters and Pescadero Creeks 152 Comment
  UC306599 Image available Pedicularis dudleyi A. D. E. Elmer June, 1903 4289 San Mateo Iverson's Place Pescadero Creek; Iverson's Place, Pescadero Creek, San Mateo Co. Comment
Read comments
Feb 28 2011
  CAS-BOT-BC207024  Pelargonium vitifolium John Thomas Howell 1932-12-21 10864 San Mateo Along road just south of Pescadero. Comment
  CAS-BOT-BC207030  Pelargonium vitifolium J. H. Thomas 1959-8-16 8066 San Mateo About 2 miles north of Pigeon Point, along the coast 15 Comment
  UC903064  Pelargonium vitifolium Ethel Crum 1934-4-29 1704 San Mateo s of Pescadero Comment
  CAS-BOT-BC330500  Pentachaeta bellidiflora Lewis S. Rose 1946-4-7 46026 San Mateo Skyline Blvd., above San Andreas Lake. 152 Comment
  JROH115  Pentagramma triangularis subsp. triangularis John Hunter Thomas 1981-4-23 20487 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH312  Perideridia kelloggii John H. Thomas 1975-7-31 17981 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC413608  Persicaria amphibia A. D. E. Elmer 1903-7-1 4650 San Mateo San Pedro Comment
  JROH6176  Persicaria maculosa John Rawlings, Ann Lambrecht 2017-10-3 2303 San Mateo Jasper Ridge Biological Preserve, Stanford University; Corte Madera Creek Delta 103 Comment
  JROH3276  Persicaria maculosa John Hunter Thomas 1980-11-27 20196 San Mateo Jasper Ridge Biological Preserve, Stanford University. Old bathing beach area. Comment
  CAS-BOT-BC330252  Petasites frigidus var. palmatus A. W. Herre; Ira L. Wiggins 1939-3-25 19 A San Mateo Headwaters of Pescadero Creek, about 8 miles N of Big Basin Redwood Park Comment
  JROH1164  Petasites frigidus var. palmatus Carol Zabel 1989-8-11 27 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek near confluence with Bear Creek Comment
  UC1301047  Petasites frigidus var. palmatus Helen K. Sharsmith 1963-3-23 5249 San Mateo Alpine Creek Canyon San Francisco Bay Region, Santa Cruz Mountains 243 Comment
  JEPS23907  Petunia parviflora Le Roy Abrams 1902-9-2 2994 San Mateo Crystal Springs Comment
  UC881073  Phacelia distans Lewis S. Rose 1939-4-13 39065 San Mateo near Crystal Springs Lake; San Mateo Canyon 60 Comment
  JEPS3114  Phacelia divaricata James G. Daly 1934-1 156 San Mateo on ridge s road to La Honda; Santa Cruz Mountains Comment
  UC909979  Phacelia nemoralis subsp. nemoralis Lewis S. Rose 1939-6-16 39281 San Mateo Skyline Blvd. above Woodside 563 Comment
  JROH5652  Phacelia rattanii John Rawlings 2014-6-10 1257 San Mateo Jasper Ridge Biological Preserve, Stanford University. Northeast side of prominent rock outcrop at southeast end of Searsville Lake near Rd. E 111 Comment
  CAS-BOT-BC258932  Phalaris aquatica J. H. Thomas 1963-8-4 10233 San Mateo About 2.5 miles inland from San Gregorio along the highway Comment
  JROH5378  Phalaris aquatica W. Lennihan 1990-6-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Whiskey Hill crossing causeway, upstream side. 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
  JROH5380  Phalaris brachystachys John Rawlings 2005-5-25 1003 San Mateo Jasper Ridge Biological Preserve, Stanford University; 100 yards west from Escobar Gate, 20 yards north of Road F 161 Comment
  CAS-BOT-BC259001  Phalaris californica A. D. E. Elmer 1903-6-1 4699 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC259010  Phalaris californica Ned Cahill 1974-7-14 363 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH5382  Phalaris lemmonii John Hunter Thomas 1970-4-29 15613 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC250641  Phalaris minor David D. Keck 1932-5-6 1464 San Mateo Belmont Comment
  JROH5384  Phleum pratense John Rawlings 2009-6-3 1024 San Mateo Jasper Ridge Biological Preserve, Stanford University. Bear Creek 82 Comment
  JROH5552  Pholistoma auritum var. auritum John Rawlings, Toni Corelli 2013-4-16 1133 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2 extension northwest of the cistern 102 Comment
  SD38211  Phoradendron leucarpum subsp. tomentosum Edith A. Purer 1934-8-14 5914 San Mateo On highway, west of Stanford University campus Comment
  JROH4289  Phoradendron serotinum subsp. tomentosum John H. Thomas 1960-3-1 8536 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  UC2056144  Phyllospadix scouleri Melvin Parris, Steve Davenport 1980-11-20 13 San Mateo Ano Nuevo Island Comment
  UC1974569  Phyllospadix torreyi Megan Williams 2002-11-21 San Mateo Pigeon Point Comment
  CAS-BOT-BC142187  Physocarpus capitatus James McMurphy 1902-5-11 s.n. San Mateo San Francisquito Creek Comment
  JROH3722  Physocarpus capitatus D. E. Breedlove 1971-5-31 19375 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH3733  Physocarpus capitatus John Hunter Thomas 1986-5-1 23988 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low flow crossing along San Francisquito Creek Comment
  RSA681424  Physocarpus capitatus Annuschka Deb 1989-6-13 218 San Mateo Woodside, Yerba Buena Nursery Demonstration Garden. Comment
  SEINET12151539  Pickeringia montana R. S. Croker 1929-1 s.n. San Mateo Near Shelf Lire Dr. (?) Comment
  JROH2202  Pickeringia montana var. montana John H. Thomas 1975-6-5 17937 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack Comment
  RSA18288  Pickeringia montana var. montana Carl B. Wolf 429 San Mateo East slope of Kings Mt. Comment
  JEPS48202  Pinus radiata W. L. Jepson 1910-8-18 4166 San Mateo Ano Nuevo Creek Comment
  UCSC007746  Pinus radiata Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC136529  Piperia candida John H. Thomas 1961-6-20 9551 San Mateo Field redacted by CAS, contact the data manager for more information 152 Comment
  CAS-BOT-BC137311  Piperia elegans James McMurphy 1906-8-24 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC137317  Piperia elegans E. McClintock; W. Knight; I. Knight 1963-9-2 s.n. 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-BC389680  Piperia unalascensis Mary Wicksten 1970-6-25 51 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  JROH2204  Pisum sativum John H. Thomas 1967-4-28 12724 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC228027  Plagiobothrys Mary Nimitz 1952-5-10 77 San Mateo Top of Jasper Ridge above Searsville Lake Comment
  SJSU15930  Plagiobothrys bracteatus Toni Corelli, John Rawlings 2016-4-29 1768 San Mateo Cascade Field along Atkinson Bluff Trail, north of Cascade Cr. Trail, in Ano Nuevo State Park 11 Comment
  SD99464  Plagiobothrys chorisianus John H. Thomas 1961-5-7 9258 San Mateo San Bruno Mountain. 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
  SDSU5438  Plagiobothrys chorisianus D. F. Howe 1969-6-6 4640 San Mateo 18.5 miles north of San Mateo - Santa Cruz Co. line on the # 1. Comment
  CAS-BOT-BC228157  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1893-5-1 s.n. San Mateo The Santa Cruz Mountain Peninsula. N of San Bruno Comment
  JEPS120462  Plagiobothrys chorisianus var. chorisianus Daniel Slakey 2013-4-6 53 San Mateo Ano Nuevo State Reserve, just north of the Cascade Creek Trail and west of the Atkinson Bluff Trail. Comment
  JEPS67914  Plagiobothrys chorisianus var. chorisianus L. R. Heckard and J. H. Thomas 1972-4-16 2897 San Mateo along Old Canada road (private) ca 1 1/2 mi s Pulgas Water Temple ((sw of Upper Crystal Springs Reservoir)) 121 Comment
  SD67294  Plagiobothrys chorisianus var. chorisianus Darley F. Howe 1967-4-13 4342 San Mateo Pebble Beach Comment
  SEINET13365367  Plagiobothrys chorisianus var. chorisianus D. W. Taylor 2008-4-16 20181 San Mateo Half Moon Bay, bluff at the far W end of Redondo Beach Drive. 15 Comment
  CAS-BOT-BC228172  Plagiobothrys chorisianus var. hickmanii Anne Constant 1955-5-28 192 San Mateo At Pescadero Beach 7 Comment
  JROH1410  Plagiobothrys chorisianus var. hickmanii John H. Thomas 1969-4-12 14890 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
  JROH1414  Plagiobothrys chorisianus var. hickmanii D. E. Breedlove 1971-5-5 19327 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
  JROH3106  Plantago coronopus John Rawlings,Ann Lambrecht 2013-4-30 1170 San Mateo Jasper Ridge Biological Preserve, Stanford University; in Rd B vicinity of Dennis Martin site 79 Comment
  SBBG25091  Plantago coronopus D. Myrick 1966-6-11 1449 San Mateo approach to Pescadero along Pescadero Crk Comment
  CHSC24897  Plantago erecta B. A. Rosene 1976-4-18 1 San Mateo Ca. 2.4 km nw of entrance to California State Game Refuge. 182 Comment
  JEPS41013  Plantago erecta Lewis S. Rose 1965-5-3 65056 San Mateo n end San Bruno Mountain 182 Comment
  JROH3121  Plantago erecta John Hunter Thomas 1984-4-2 23273 3 B San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge fence Comment
  UCD124449  Plantago erecta Robert F. Thorne; P. Everett 1963-6-9 32220 San Mateo Kamchatka Point near TV tower on San Bruno Mt. 335 Comment
  HSC16822  Plantago erecta L. S. Rose 1965-5-3 65056 San Mateo San Bruno Mtn., N end 183 Comment
  UCD124478  Plantago erecta Lewis S. Rose 1965-5-3 65056 San Mateo San Bruno Mountain, north end. 182 Comment
  UCD124581  Plantago lanceolata J. Doty 1969-3-26 597 San Mateo 100 yards east of the junction of State Highways 35 and 92, near summit of Coast Range. Comment
  JEPS7154  Plantago maritima var. californica James G. Daly 1934-1 478 San Mateo mouth of San Gregorio Creek San Gregorio Creek Comment
  UC136736  Plantago maritima var. californica Dr. E. B. Copeland 1903-6-5 3331 San Mateo Montara Point Comment
  UC931954  Plantago maritima var. californica Verne Grant and Alva Grant 1946-6-23 7696 San Mateo s of Daly City; San Francisco Peninsula Comment
  JEPS7150  Plantago maritima var. californica G. Thomas Robbins 1953-8-29 3617 San Mateo just s Olympic Golf Club (and the San Francisco City and County line) Comment
  CAS-BOT-BC92014  Platystemon californicus John H. Thomas 1974-5-7 17317 San Mateo San Bruno Mountain. Along Guadalupe Parkway opposite school. Comment
  JROH4242  Plectritis congesta subsp. brachystemon John H. Thomas 1974-5-3 17239 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4244  Plectritis congesta subsp. brachystemon John Hunter Thomas 1979-5-10 19546 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM88008  Plectritis congesta subsp. nitida L. R. Abrams 1902-5-11 2457 San Mateo Crystal Springs. Comment
  JROH4250  Plectritis macrocera John H. Thomas 1971-4-24 15773 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4252  Plectritis macrocera John H. Thomas 1977-4-29 18572 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA135747  Pleuropogon californicus var. californicus James I. McMurphy 1906-5-8 s.n. San Mateo Road near head of Crystal Springs Lakes, by road from Woodside to Byrnes Store. Comment
  CAS-BOT-BC255566  Poa annua Ira L. Wiggins 1975-4-17 22142 San Mateo NE side of Southern Pacific right-of-way, between San Francisquito Creek and Willow Road, Menlo Park Comment
  CAS-BOT-BC261645  Poa annua Peter Rubtzoff 1988-5-3 9910 San Mateo San Bruno Mountain, Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road in the northwest part of the Saddle area, east of Saddle Trail Junction. Comment
  JROH5401  Poa annua John Hunter Thomas 1980-11-27 20181 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC188935  Poa annua Michener apr. 1891 118 San Mateo San Bruno Rd Comment
  CAS-BOT-BC254544  Poa douglasii Robert Robertson 1954-5-1 128 San Mateo At back of beach N of San Gregorio Creek 6 Comment
  CAS-BOT-BC246709  Poa howellii Roxana S. Ferris 1921-3-20 2175 San Mateo Santa Cruz Mountain Peninsula. Road from Alpine Creek to Pescadero Creek 304 Comment
  RSA135727  Poa howellii W. R. Dudley 1900-3-17 s.n. San Mateo Ravine north of Seal Cove. Comment
  CAS-BOT-BC237725  Poa secunda subsp. juncifolia Dr. E. B. Copeland 1903-4-20 1920 San Mateo San Andreas Lake Comment
  CAS-BOT-BC243116  Poa secunda subsp. secunda John H. Thomas 1971-5-2 15839 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles W from Redwood City 152 Comment
  JROH5426  Poa secunda subsp. secunda W. Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Across Lake from lab. Comment
  CAS-BOT-BC173841  Poa trivialis Peter Rubtzoff 1977-6-7 9030 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  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-BC244249  Poa unilateralis David D. Keck 1932-5-6 1477 San Mateo Hillsides above Millbrae Highlands Comment
  POM204933  Poa unilateralis E. B. Copeland 1903-6-17 3306 San Mateo Montara Point. Comment
  UC1190034  Poa unilateralis H. L. Mason 1921-5-28 San Mateo Pebble Beach near Pescadero Comment
  UC144491  Poa unilateralis Copeland 1903-5-24 3259 San Mateo Montara Point Comment
Read comments
Jan 23 2011
  UC156969  Poa unilateralis Dr. E. B. Copeland 1903-6-17 3306 San Mateo Montera Point Comment
  UCD92154  Poa unilateralis R. L. Pendleton 1907-4-20 616 a San Mateo Lake Merced. 91 Comment
  UC168661  Polygonum amphibium var. emersum C. F. Baker 1902-10-20 1835 San Mateo Searsville Comment
  CAS-BOT-BC166771  Polygonum arenastrum Peter Rubtzoff 1977-4-16 8953 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. 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-BC414106  Polygonum aviculare subsp. aviculare J. H. Thomas 1960-6-25 8784 A San Mateo Redwood City. Near Main and Stambaugh sts. Comment
  JEPS81639  Polygonum aviculare subsp. aviculare J. C. Hickman 1981-7-21 1005 San Mateo Ano Nuevo Reserve; se edge Comment
  JROH5583  Polygonum aviculare subsp. depressum John Rawlings 2013-7-16 1192 San Mateo Jasper Ridge Biological Preserve, Stanford University; a few yards downstream from the Low Flow Crossing, San Francisquito Cr. 80 Comment
  OBI37074  Polygonum aviculare subsp. depressum M. J. Erwin 1983-11-11 20 San Mateo Daggett residence, 100 yds W of Old Canada Rd, within proeprty limits of Filoli Center, Canada Rd Comment
  CAS-BOT-BC109237  Polygonum paronychia Adele Lewis Grant 1917-5-6 944 San Mateo Pebble Beach near Pescadero. Comment
  CAS-BOT-BC109245  Polygonum paronychia David D. Keck 1931-10-5 1288 San Mateo 1 mile north of Salada Beach. 200 m. from ocean. Comment
  RSA18362  Polygonum paronychia Carl B. Wolf 1929-5-25 3726 San Mateo Pebble Beach, S of Pescadero Comment
  SJSU2298  Polygonum paronychia C. W. Sharsmith 1950-4-16 6627 San Mateo near Pescadero Point, near Pescadero Comment
  CAS-BOT-BC76903  Polypodium californicum C. F. Baker 1902-1-15 235 San Mateo West side King's Mountain Comment
  CAS-BOT-BC76947  Polypodium californicum Ned Cahill 1974-5-13 249 San Mateo Chaparral near the intersection of Canada and Edgewood Roads, about 3 mi westward from Redwood City. Comment
  CAS-BOT-BC384625  Polypodium californicum M. Danielson 1967-4-30 s.n. San Mateo On old road above and south of Crystal Springs Road Comment
  CAS-BOT-BC76901  Polypodium californicum Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain - grassy slope above Hillside Blvd., south San Francisco Comment
  CAS-BOT-BC76906  Polypodium californicum W. R. Dudley 1903-3-10 s.n. San Mateo Santa Cruz Mountain Peninsula - near Pedro Pt. and near sea. Comment
  CAS-BOT-BC233155  Polypogon interruptus C. F. Leitholt 1894-8-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Devil's [Canon] Canyon Comment
  JROH5435  Polypogon interruptus John Hunter Thomas 1983-5-23 22247 San Mateo Jasper Ridge Biological Preserve, Stanford University. Roadside drainage near shack side & low-flow crossing. Comment
  JROH5437  Polypogon interruptus John Rawlings 2011-10-7 1087 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek bed downstream from the bridge across Road C. 85 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-BC237350  Polypogon monspeliensis Verne Grant; Herbert L. Mason 1946-8-28 13094 San Mateo On Highway 5, about 3 miles S of Daly City Road Comment
  JROH5608  Polypogon monspeliensis John Rawlings 2013-5-28 1210 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small drainage west of Goya Gate. 177 Comment
  RSA101028  Polypogon monspeliensis G. Oberlander 1949-7-24 312 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve. Comment
  HSC10835  Polypogon monspeliensis B. Francis 1964-5-5 47 San Mateo 5 miles N of San Francisco International Airport. Comment
Read comments
Jul 2 2009
  JROH5544  Polypogon viridis John Rawlings 2012-5-23 1111 San Mateo Jasper Ridge Biological Preserve, Stanford University. 106 Comment
  CAS-BOT-BC72227  Polystichum dudleyi Kate O. Sessions s.n. San Mateo unspecified Comment
  CAS-BOT-BC76604  Polystichum munitum Ira L. Wiggins 1928-4-14 2921 San Mateo Alpine Creek Road Comment
  CAS-BOT-BC76649  Polystichum munitum Roxana S. Ferris 1921-3-20 2108 San Mateo Pescadero Creek in canyon, 6 mi. from Pescadero Comment
  CAS-BOT-BC76650  Polystichum munitum W. R. Dudley 1896-2-16 s.n. San Mateo Santa Cruz Peninsula - Devil's Canyon, Black Mountain Comment
  RSA11001  Polystichum munitum C. B. Wolf 1928-3-14 1538 San Mateo La Honda Grade, Santa Cruz Mountains. Comment
  JROH3361  Portulaca oleracea John Hunter Thomas 1985-8-7 23708 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC267164  Potamogeton foliosus L. R. A. 1902-9-21 2999 San Mateo Belmont Lake Comment
  RSA3934  Potamogeton foliosus W. R. Dudley 1909-10-10 s.n. San Mateo Near boat landing, club house Capital Springs Reservoir Comment
  CAS-BOT-BC453678  Potamogeton gramineus W. R. Dudley 1910-5-26 s.n. San Mateo Santa Cruz Mountain Peninsula. Coal Mine Ridge near Black Mountain Comment
  SEINET3825842  Potamogeton lucens N. L. Gardner 1933-9-24 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC453834  Potamogeton nodosus L. R. Abrams; I. L. Wiggins 1939-6-3 435 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC453996  Potamogeton pectinatus H. L. Mason 1921-5-29 s.n. San Mateo On La Honda Grade near Woodruffs Hotel Comment
  CAS-BOT-BC454001  Potamogeton pectinatus W. R. Dudley 1909-10-31 s.n. San Mateo Santa Cruz Mountain Peninsula. Menlo Park Reservoir. Comment
  CAS-BOT-BC454010  Potamogeton pectinatus Ira L. Wiggins 1935-6-29 8051 San Mateo Pescadero Creek, about 1 mile west of Pescadero Comment
  CAS-BOT-BC454052  Potamogeton pusillus subsp. pusillus Charles W. O'Brien 1964-8-31 s.n. San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC141935  Potentilla anserina subsp. pacifica Robert Robertson 1954-4-17 85 San Mateo By stream near coast north of Moss Beach (Montara) 4 Comment
  JROH4675  Prosartes hookeri John Hunter Thomas 1981-4-5 20258 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC516346  Prosartes hookeri D. D. Davis 1903-5-2 s.n. San Mateo Near La Honda, Santa Cruz Peninsula Comment
  CAS-BOT-BC516352  Prosartes hookeri C. F. Baker 1903-4-1 5052 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC516359  Prosartes hookeri E. A. McGregor 1908-3-28 s.n. San Mateo Kings Mountain Comment
  CAS-BOT-BC516360  Prosartes hookeri W. R. Bentley 1957-5-11 83 San Mateo La Honda Road, 1/2 mile east of La Honda 152 Comment
  CAS-BOT-BC517394  Prosartes smithii W. R. Dudley 1904-3-1 s.n. San Mateo Goat Ranch, summit of Santa Cruz Mountains near old La Honda Road crossing Comment
  CAS-BOT-BC517398  Prosartes smithii W. R. Dudley 1895-4-14 s.n. San Mateo Santa Cruz Peninsula, beyond summit on Woodside Road Comment
  SJSU9997  Prosartes smithii R. L. Roney 1974-4-27 San Mateo N side of La Honda Creek 457 Comment
  RSA217975  Prunella vulgaris var. lanceolata Phillip Wheeler 1965-6-20 s.n. San Mateo Adjacent to Radio Road Comment
  CAS-BOT-BC158174  Prunus emarginata Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Buckeye Canyon Comment
  CAS-BOT-BC158178  Prunus emarginata George Oberlander 1950-5-21 956 San Mateo Southern Cahill Ridge Comment
  UC12742  Prunus emarginata J. Burtt Davy 1895-4-20 1032 San Mateo Lake San Andreas Comment
  CAS-BOT-BC154497  Prunus ilicifolia A. D. E. Elmer 1903-7-1 4773 San Mateo Pilarcitos Stone Dam Comment
  CAS-BOT-BC154507  Prunus ilicifolia Brandegee s.n. San Mateo Menlo Park Comment
  RSA187271  Prunus ilicifolia John H. Thomas 1954-5-28 4239 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 30 Comment
  UC202781  Prunus ilicifolia A. D. E. Elmer July, 1903 4773 San Mateo Pilarcitos Stone Dam Comment
  CAS-BOT-BC154652  Prunus subcordata Adoph Holme 1929-4-1 s.n. San Mateo Berenda Farm near Redwood City Comment
  UCSC007421  Pseudognaphalium Randall Morgan 2010-5-29 5039 San Mateo Rockaway Beach Comment
  CAS-BOT-BC356857  Pseudognaphalium californicum Josephine D. Randall 1907-7-23 47 San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  CAS-BOT-BC356872  Pseudognaphalium californicum A. D. E. Elmer 1903-6-1 4291 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC356851  Pseudognaphalium californicum R. E. Frenkel 1964-8-21 755 San Mateo On Spring Valley Ridge Road at its junction with Whiting Ridge Road, SFWD 347 Comment
  CAS-BOT-BC357124  Pseudognaphalium luteoalbum Fred Hemphill 1973-4-22 841 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  POM358830  Pseudognaphalium luteoalbum E. A. Purer 1933-8-13 5427 San Mateo Belmont Comment
  SBBG45074  Pseudognaphalium luteoalbum F. T. Howell 1935-1-13 12578 San Mateo Lake San Andreas Comment
  CAS-BOT-BC357128  Pseudognaphalium luteoalbum Javier Penalosa 1963-2-23 2659 San Mateo San Bruno Mtn. Ravine south of Crocker Ave. 213 Comment
  JROH777  Pseudognaphalium luteoalbum John H. Thomas 1974-10-29 17649 San Mateo Jasper Ridge Biological Preserve, Stanford University; Small peninsula created by drainage channel cut to accomodate water from Corte Madera Cr. Comment
  CAS-BOT-BC357507  Pseudognaphalium ramosissimum W. R. Dudley 1895-9-15 s.n. San Mateo Santa Cruz Mountain Peninsula. El Corte Madera Comment
  JEPS49081  Pseudognaphalium stramineum Lewis S. Rose 1966-8-6 66079 San Mateo Colma Canyon San Bruno Mountain, Colma Canyon 121 Comment
  JROH5642  Pseudognaphalium stramineum John Rawlings 2014-6-7 1251 San Mateo Jasper Ridge Biological Preserve, Stanford University; a few meters east of the Caretaker's Residence 106 Comment
  POM25381  Pseudotsuga menziesii A. D. E. Elmer 1903-04 4562 San Mateo Kings Mountain. Comment
  RSA384643  Pseudotsuga menziesii E. A. Purer 1932-7-18 s.n. San Mateo King s Mountain. Comment
  UCR201596  Pseudotsuga menziesii June Latting 1972-4-21 s.n. San Mateo Central Coast, Santa Cruz Mountains, Pseudotsuga study site 777 Comment
  CAS-BOT-BC85909  Pseudotsuga menziesii W. R. Dudley 1899-8-27 s.n. San Mateo Near Sisson Tavern Comment
  CAS-BOT-BC85911  Pseudotsuga menziesii E. A. McGregor 1908-3-28 s.n. San Mateo Kings Mt., west slope 792 Comment
  SEINET11737773  Pseudotsuga menziesii Unknown 1929-1 7286 San Mateo Kings Mountain Comment
  JROH1185  Psilocarphus tenellus John Hunter Thomas 1978-4-25 19146 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1187  Psilocarphus tenellus John Hunter Thomas 1980-5-8 19948 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC362030  Psilocarphus tenellus Walter Knight; Irja Knight 1965-3-21 960 San Mateo San Bruno Mountain. North Power Line Ridge Comment
  JROH12  Pteridium aquilinum var. pubescens John H. Thomas 1974-10-12 17624 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH5770  Quercus X chasei Carol Zabel, Ann Lambrecht 2001-10-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; northeast side of Jasper Ridge along lower Trail 5 going down below switchback, first oak past valley oak with exposed roots, creek side of trail Comment
  UCD45030  Quercus agrifolia J. M. Tucker 1946-3-2 1373 San Mateo Tree on a hillside, associated with Q. wislizenii; about 4 miles east of Pescadero, San Mateo County, California. Comment
  SEINET13953029 Image available Quercus agrifolia Lewis S. Rose 1964-1 64012 San Mateo Emerald Lake, west of Redwood City hills, 400 feet in altitude 122 Comment
  JROH2458  Quercus agrifolia var. agrifolia John H. Thomas 1971-4-21 15769 San Mateo Jasper Ridge Biological Preserve, Stanford University; at bridge Comment
  CAS-BOT-BC85953  Quercus douglasii Lewis S. Rose 1931-9-19 s.n. San Mateo Woodside Comment
  JROH2473  Quercus douglasii John Hunter Thomas 1981-4-27 20505 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC94281  Quercus durata James McMurphy 1907-8-6 s.n. San Mateo between Woodside and Crystal Springs Comment
  UC942919  Quercus durata Lewis S. Rose 1950-5-20 50136 San Mateo w of Redwood City; Emerald Lake Region 243 Comment
  JROH2493  Quercus durata var. durata John Hunter Thomas 1984-10-14 23484 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD45969  Quercus durata var. durata Lewis S. Rose 1964-9-5 64068 San Mateo Emerald Lake, W. of Redwood City. Alt. ca. 800 ft. 243 Comment
  CAS-BOT-BC105392  Quercus kelloggii W. R. Dudley 1901-5-4 s.n. San Mateo Santa Cruz Mountain Peninsula, Coal Mine Canon [canyon] Comment
  CAS-BOT-BC105399  Quercus kelloggii J. I. McMurphy 1904-3-7 48 San Mateo Santa Cruz Mountain Peninsula. Foothills near Woodside Comment
  JROH2499  Quercus kelloggii K. Hoffough 1929-4-27 277 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM216555  Quercus kelloggii D. D. Keck 1932-3-6 1395 San Mateo La Honda road above Searsville Lake, Santa Cruz Mountains. Comment
  POM270206  Quercus kelloggii Lyman Benson 1932-8-1 4034 San Mateo Stanford University, Santa Cruz mountain range, Corte Madera Creek watershed. 122 Comment
  UC1135674  Quercus kelloggii C. M. Belshaw 1935-1-25 1463 San Mateo 4.5 mi w Woodside; Santa Cruz Quad. 609 Comment
  UCD46659  Quercus kelloggii C. M. Belshaw 1936-1-25 1463 San Mateo Kings Mountain road, 4.5 miles west of Woodside, San Mateo County. South Coast Range. Comment
  JROH2519  Quercus lobata John H. Thomas 1971-8-5 16011 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD38233  Quercus lobata Delzie Demaree 1929-10-17 3678 San Mateo King's Mountain Comment
  CAS-BOT-BC134785  Quercus wislizeni James McMurphy 1902-5-17 s.n. San Mateo Road to Kings Mt. Comment
  UC762353  Quercus wislizeni Robert F. Hoover 1941-2-12 4757 San Mateo above La Honda; La Honda Creek Comment
  CAS-BOT-BC362547  Rafinesquia californica Fred Hemphill 1973-5-14 824 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH3471  Ranunculus californicus John H. Thomas 1974-4-6 17090 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC378531  Ranunculus californicus var. californicus E. McClintock; Phillip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain, grassy slope east of and below Nike station Comment
  POM150461  Ranunculus californicus var. cuneatus C. F. Baker 1902-4-12 504 San Mateo San Gregorio. Comment
  CAS-BOT-BC83417  Ranunculus lobbii J. I. McMurphy 1906-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula. Pond near Head of Crystal Springs Lakes. Comment
  CAS-BOT-BC83421  Ranunculus lobbii Roxana S. Ferris 1918-3-31 758 San Mateo Coal Mine Ridge. Comment
  CAS-BOT-BC83423  Ranunculus lobbii J McMurphy 1904-1-1 s.n. San Mateo Coal Mine Ridge. Comment
  POM269867  Ranunculus lobbii Roxana S. Ferris 1918-3-31 s.n. San Mateo Mud Lakes, Coal Mine Ridge Comment
  RSA119758  Ranunculus lobbii James I. McMurphy 1904-1 s.n. San Mateo Coal Mine Road Comment
  CAS-BOT-BC83426  Ranunculus lobbii W. R. Dudley 1964-4-22 s.n. San Mateo Santa Cruz Mountain Peninsula. Corte Madera Creek. Along New Grade Road. Comment
  JROH3496  Ranunculus muricatus John Hunter Thomas 1983-4-5 21327 San Mateo Jasper Ridge Biological Preserve, Stanford University. Low-flow crossing Comment
  RSA10410  Ranunculus muricatus Carl B. Wolf 1927-6-15 2164 San Mateo Along Skyline Drive, 8 mi. S of San Francisco. Comment
  POM177526  Ranunculus orthorhynchus var. bloomeri L. R. Abrams 1909-4-27 s.n. San Mateo marsh land betw Woodside and Crystal Lake Comment
  POM269795  Ranunculus pusillus W. R. Dudley 1906-5-8 s.n. San Mateo Road betw woodside and Byrnes store Comment
  CDA3486  Ranunculus trilobus P. Greer 2002-4-17 s.n. San Mateo Highway 101, in Half Moon Bay. 0 Comment
  UCD20153  Ranunculus trilobus Phil Greer 2002-4-17 s.n. San Mateo Hwy 101, in Half Moon Bay. Comment
  CAS-BOT-BC55887  Rhamnus crocea J. I. McMurphy 1906-4-4 55 San Mateo Los Trancos Creek, Santa Cruz Mts. 182 Comment
  JROH3559  Rhamnus crocea John H. Thomas 1963-3-20 10029 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Westridge end of ridge. Comment
  CAS-BOT-BC56663  Rhododendron occidentale H. L. Mason 1921-7-3 s.n. San Mateo Butano Ridge Comment
  CAS-BOT-BC56666  Rhododendron occidentale W. S. Atkinson 1901-7-6 s.n. San Mateo Pescadero Creek Comment
  SEINET12215220  Ribes aureum var. gracillimum Cummings, McCallum, G. A. 1933-1 s.n. San Mateo Stevens Creek Comment
  UC11498  Ribes californicum J. Burtt Davy 1895-4-21 1058 San Mateo Pilarcitos Creek Comment
  CAS-BOT-BC93003  Ribes californicum var. californicum A. D. E. Elmer 1903-3-1 4683 San Mateo Portola. Comment
  JROH2641  Ribes californicum var. californicum John H. Thomas 1968-3-17 14178 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2646  Ribes californicum var. californicum John Hunter Thomas 1982-2-19 20802 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Goya Gate Comment
  JROH2651  Ribes divaricatum var. pubiflorum A. D. E. Elmer 1903-5-1 4511 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC311181  Ribes divaricatum var. pubiflorum A. D. E. Elmer May, 1903 4511 San Mateo Searsville Lake Comment
  CAS-BOT-BC173471  Ribes malvaceum Fred Hemphill 1973-4-15 643 San Mateo San Carlos. Area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC173477  Ribes malvaceum George Oberlander 1949-2-2 5 San Mateo Crest of Sweeney Ridge Comment
  JROH2662  Ribes malvaceum var. malvaceum J. H. Thomas 1959-1-17 7513 San Mateo Jasper Ridge Biological Preserve, Stanford University 152 Comment
  CAS-BOT-BC212826  Ribes menziesii Josephine M. Johnson 1918-8-1 s.n. San Mateo Unspecified Comment
  CAS-BOT-BC212844  Ribes menziesii W. & I. Knight 1963-7-14 s.n. San Mateo Upper rim, above Quarry, San Bruno Mountains Comment
  SEINET10482931  Ribes menziesii Mary Susan Taylor 1978-8-30 Taylor 1855 San Mateo Comment
  CDA34444  Ribes sanguineum M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 874 San Mateo Pacifica: San Pedro Valley County Park, along Brooks Creek Trail. 148 Comment
  CAS-BOT-BC144636  Ribes sanguineum var. glutinosum W. R. Dudley 1894-3-29 s.n. San Mateo Between Half Moon Bay and Woodside Comment
  CAS-BOT-BC144640  Ribes sanguineum var. glutinosum R. Bacigalupi 1922-3-1 s.n. San Mateo Pescadero Creek Comment
  JROH2685  Ribes sanguineum var. glutinosum John Hunter Thomas 1985-4-25 23556 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway. Comment
  JROH2687  Ribes sanguineum var. glutinosum Carol Zabel 1989-3-29 7 San Mateo Jasper Ridge Biological Preserve, Stanford University. Leonard's bridge (old Corte Madera Creek bridge). Comment
  UC858477  Ribes sanguineum var. glutinosum E. G. Dudley 1904-3-3 San Mateo Portola Road, bridge Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC363094  Rigiopappus leptocladus Le Roy Abrams 1902-5-4 2401 San Mateo Woodside Comment
  JROH1212  Rigiopappus leptocladus John Rawlings,Toni Corelli 2007-5-2 0907 San Mateo Jasper Ridge Biological Preserve, Stanford University. Upper Big Inlet drainage in serpentine near NW corner of West Serpentine Chaparral. 167 Comment
  RSA8343  Rigiopappus leptocladus L. S. Rose 1933-4-30 33130 San Mateo Redwood City Comment
Read comments
Jul 24 2013
  UC75100  Rigiopappus leptocladus C. F. Baker 1902-5-4 754 San Mateo Woodside Comment
  SJSU6410  Romanzoffia californica C. W. Sharsmith 1973-3-24 7935 San Mateo Pillarcitos Canyon, Crystal Springs area San Francisco Watershed Lands Comment
  CAS-BOT-BC74649  Rorippa curvisiliqua W. R. Dudley 1906-6-10 s.n. San Mateo Santa Cruz Mountain Peninsula. South Cahil Ridge. Comment
  CAS-BOT-BC74650  Rorippa curvisiliqua W. R. Dudley 1908-6-19 s.n. San Mateo Santa Cruz Mountain Peninsula. Edge of Earthquake Pond east of Jersey Pond west of Baden. Comment
  SD37966  Rorippa curvisiliqua var. curvisiliqua Jane T. Turner 1933-5-15 3671 San Mateo Mud Lake Comment
  CHSC56587  Rosa californica Steven Triano 1988-5-24 173 San Mateo Along w side of Old La Honda Road ca 0.6 mi s of Portola Road and 3.8 mi s of Woodside. 201 Comment
  CAS-BOT-BC147666  Rosa canina Elizabeth McClintock; Paul Reeberg 1988-6-28 s.n. San Mateo On both sides of road to Camp Silverspot 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
  UC311147  Rosa gymnocarpa A. D. E. Elmer May, 1903 4923 San Mateo Pescadero Creek; on the Iverson's Place Comment
  UCD92298  Rostraria cristata John Thomas Howell 1973-4-28 49145 San Mateo Burlingame. Comment
  CAS-BOT-BC152828  Rubus parviflorus Ira L. Wiggins 1939-8-12 9296 A San Mateo along banks of Gazos Cr., about 5 miles inland form coast. Comment
  CAS-BOT-BC152871  Rubus parviflorus Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo Above the quarry - San Bruno Mountain Comment
  JROH3773  Rubus parviflorus John H. Thomas 1974-5-3 17247 San Mateo Jasper Ridge Biological Preserve, Stanford University. Redwood area below dam Comment
  UCSB11517  Rubus parviflorus Olson, Jim 1962-4-15 San Mateo Junction of Portola State Park Road and Camp Pomponio Road; 20 miles south of La Honda; 609 Comment
  RSA128601  Rubus parviflorus var. velutinus Peter H. Raven 1950-4-30 1982 San Mateo Montara Mtns. Ca 1/2 mile N of Montara. 91 Comment
  CAS-BOT-BC156766  Rubus spectabilis Roxana Stinchfield 1916-3-10 265 San Mateo Half Moon Bay Comment
  CAS-BOT-BC157076  Rubus ursinus L. R. Abrams 1914-10-14 5130 San Mateo At Tunitas Comment
  CAS-BOT-BC157081  Rubus ursinus L. R. Abrams 1914-10-14 5135 San Mateo Tunitas Comment
  CAS-BOT-BC157101  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6050 San Mateo Montara Mt. above Pt. San Pedro Comment
  CDA33981  Rubus ursinus D. G. Kelch 2011-3-13 11 .055 San Mateo Near Half Moon Bay along Capistrano Creek. Comment
  JROH3779  Rubus ursinus John H. Thomas 1977-4-29 18574 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA208241  Rubus ursinus John Thomas Howell; 1938-6-4 13888 San Mateo San Francisco Bay, Burlingame Comment
  UCSC007775  Rubus ursinus Becky Hendricks, Shayne Coppedge 2012-5-18 s.n. San Mateo Ano Nuevo State Park Comment
  JROH3291  Rumex acetosella John H. Thomas 1974-5-19 17384 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC422092  Rumex acetosella J. H. Thomas 1949-4-6 s.n. San Mateo About 4 miles south of Daly City. Comment
  RSA128689  Rumex acetosella Peter H. Raven 1950-6-3 2221 San Mateo along Millbrae Ave., Millbrae. 61 Comment
  UCD163591  Rumex californicus Peter Rubtzoff 1980-8-4 9564 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH3296  Rumex conglomeratus John Hunter Thomas 1990-2-6 24867 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC421576  Rumex crassus Saichi Kawahara 1968-6-15 434 San Mateo Pescadero Beach, 150 yards south of mouth of Pescadero Creek, Highway 1 3 Comment
  UCSC007778  Rumex crassus Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC433355  Rumex crispus Walter Knight; Irja Knight 1965-4-24 s.n. San Mateo San Bruno Mountain. Point San Bruno Comment
  CAS-BOT-BC433545  Rumex fueginus W. R. Dudley 1902-9-21 s.n. San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  UC1094021  Rumex maritimus Lewis S. Rose 1956-8-13 56143 San Mateo Princeton 3 Comment
  UC202769  Rumex pulcher A. D. E. Elmer Jul 1903 4778 San Mateo Pilarcitos Stone Dam Comment
  CAS-BOT-BC433824  Rumex pulcher Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Guadalupe Road Comment
  CAS-BOT-BC433830  Rumex pulcher Javier Penalosa 1963-3-30 2728 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF. 91 Comment
  UC175931  Rumex salicifolius var. crassus W. A. Setchell 1913-10-19 San Mateo Farallone City Comment
  JROH2222  Rupertia physodes John Hunter Thomas 1981-5-14 20571 San Mateo Jasper Ridge Biological Preserve, Stanford University; old shack riders shack Comment
  UC279587  Ruppia cirrhosa W. A. Setchell 1925-8-29 San Mateo Laguna de Salada Comment
  CAS-BOT-BC454176  Ruppia maritima H. L. Mason 1921-6-2 s.n. San Mateo Pebble Beach near Pescadero Comment
  RSA34798  Ruppia maritima I. L. Wiggins 1946-4-30 11199 San Mateo In brackish pool on W side of Bayshore Hwy 1/2 mile N of Redwood City, San Mateo County Comment
  CDA43028  Rytidosperma caespitosum T. Hyland 2014-6-27 PDR# MVAP 06098549 San Mateo Ano Nuevo State Park, along entrance road. 0 Comment
  JROH1715  Sagina apetala Oz Garton 1968-5-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC469121  Salix fragilis N. L. Gardner Sept. 1927 San Mateo Cypress Lawn Cemetery, near Colma, San Mateo Co., California Comment
  CAS-BOT-BC104051  Salix hindsiana Lewis S. Rose 1965-3-8 65003 San Mateo Searsville Lake 121 Comment
  CAS-BOT-BC125373  Salix lasiandra var. lasiandra W. R. Dudley 1903-5-1 s.n. San Mateo Iverson's by Peters Creek Comment
  JROH3871  Salix lasiandra var. lasiandra John H. Thomas 1968-5-17 14177 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3876  Salix lasiandra var. lasiandra John H. Thomas 1975-5-2 17854 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC107127  Salix lasiolepis Walter Knight; Irja Knight 1965-2-28 867 San Mateo Colma Canyon - San Bruno Mt. Comment
  CAS-BOT-BC107133  Salix lasiolepis Peter H. Raven 1964-2-16 18742 San Mateo Just south of Lake San Andreas Comment
  CAS-BOT-BC107142  Salix lasiolepis L. R. Abrams 1915-3-13 5162 San Mateo Near junction of San Francisquito and Los Trancos Creeks, about 2 miles from Stanford University Comment
  JEPS121519  Salix lasiolepis Adam C. Schneider with C. Matt Guilliams and Will Freyman 2014-2-1 322 San Mateo Crystal Springs Reservoir, Pulgas Ridge, east of Crystal Springs Reservoir. Comment
  UCR279849  Salix lasiolepis Peter Rubtzoff 1976-3-14 8446 San Mateo San Francisco Bay Region, San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction; upper part of East Fork Colma Creek Canyon 220 Comment
  CAS-BOT-BC108261  Salix lasiolepis var. bigelovii C. R. Ball; G. W. Hendry 1931-2-22 15 San Mateo In arroyo near San Gregoio Creek, 100 m. from ocean. Near sea level. Comment
  CAS-BOT-BC124494  Salix lasiolepis var. lasiolepis Margaret A. Barry 1938-5-6 s.n. San Mateo Los Trancos Creek near Coal Mine Ridge Comment
  POM362921  Salix scouleriana L. S. Rose 1934-2-10 34025 San Mateo Skyline Blvd. 4 miles S Kings Mtn. Comment
  UC5090  Salix scouleriana Harry A. Dutton 1899-12-10 San Mateo above Searsville (on rd. below Buck Horn Ranch) Comment
  SEINET12003643  Salix scouleriana L. S. Rose 1938-1 38303 San Mateo Skyline Blvd. & La Honda Road 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-BC126495  Salix sitchensis Phillip Wheeler 1966-10-16 s.n. San Mateo Crocker Industrial Park Comment
  CAS-BOT-BC126516  Salix sitchensis W. R. Dudley 1903-5-1 s.n. San Mateo Iverson's near Pescadero Creek 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
  CDA20077  Salsola soda W. Shek 2002-10-29 PDR 065875 San Mateo San Francisco Bay Area; Rangeland at 3517 Haven Ave, Menlo Park. 2 Comment
  CAS-BOT-BC180794  Salsola soda John H. Thomas 1974-10-6 17615 San Mateo Palo Alto Yacht Harbor near airport. Altitude about sea level. Comment
  SBBG40540  Salsola soda W. Anderson 1968-8-16 San Mateo W end of Dumbarton Bridge Comment
  UC1046499  Salvia spathacea R. Bacigalupi, L. Constance, Ritchie and Sarah Bell 1951-3-25 3204 San Mateo near San Francisco (Colma Canyon); Colma Canyon 137 Comment
  RSA51285  Salvia spathacea Peter H. Raven 1950-4-16 1787 San Mateo Colma Canyon, San Bruno Mountains. 183 Comment
  SJSU15329  Salvia spathacea A. Hicks 1979-11-23 41 San Mateo near creek above gully at Chestnut and Hillside Blvd., South- west facing slope of San Bruno Mts., South San Francisco. 182 Comment
  CAS-BOT-BC246024  Sambucus nigra subsp. caerulea Daniel Cohen 1953-6-3 107 San Mateo Los Trancos Woods Comment
  JROH1670  Sambucus nigra subsp. caerulea John H. Thomas 1973-6-15 16853 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC236462  Sambucus racemosa subsp. racemosa Roxana Stinchfield 1916-3-10 266 San Mateo Pilarcitos Creek near Half Moon Bay, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC235074  Sambucus racemosa var. racemosa W. R. Dudley 1893-3-24 s.n. San Mateo Santa Cruz Mountain Peninsula. Pescadero Creek Comment
  JROH323  Sanicula bipinnatifida John H. Thomas 1973-3-12 16485 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC223328  Sanicula bipinnatifida John H. Thomas 1974-4-11 17132 San Mateo To the SE of Canada Road and Edgewood Road. NW of Woodside 152 Comment
  JROH329  Sanicula crassicaulis John H. Thomas 1961-5-5 9212 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below Searsville Dam 76 Comment
  JROH336  Sanicula crassicaulis John H. Thomas 1974-4-13 17152 San Mateo Jasper Ridge Biological Preserve, Stanford University; near area H Comment
  RSA176825  Sanicula crassicaulis John H. Thomas 1961-5-5 9212 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  RSA667078  Sanicula crassicaulis George K. Helmkamp, E. Helmkamp 2001-6-2 6784 San Mateo Central CA coast: Purissima Crk Rd, E of Half Moon Bay at Purissima Crk, 3.2 mi E of CA-1 244 Comment
  UCD166152  Sanicula crassicaulis Jack Major; M. Forde and S. Bamberg 1962-4-3 736 San Mateo Above Coastways Ranch on Finney Creek. (Exact location unknown. Coordinates estimated by label maker). Comment
  UCR121545  Sanicula crassicaulis George K. Helmkamp, E. A. Helmkamp 1999-6-28 4963 San Mateo Coast Range; Santa Cruz Mtns, Sky Londa; junction of Calif. Hwy 84 and Calif. Hwy 35, 5 mi south of central Redwood City 457 Comment
  RSA191945  Sanicula crassicaulis R. F. Thorne, P. Everett 1963-6-9 32242 San Mateo On top of San Bruno Mountain. 335 Comment
  JROH347  Sanicula tuberosa H. J. Dengler 1964-3-29 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; in the center of the westernmost enclosure, above the old trail to S.F. Creek Comment
  UC1601281  Satureja douglasii Ira L. Wiggins 1929-7-4 3778 San Mateo 4 mi w La Honda (on hill road to Pescadero Beach) Comment
  RSA445295  Satureja douglasii H. F. Copeland 1929-7-4 1231 San Mateo La Honda Grade. Comment
  POM274844  Saxifraga californica Lyman Benson 1930-3-31 2025 San Mateo Stanford University. 122 Comment
  JROH351  Scandix pecten-veneris John H. Thomas 1973-3-12 16484 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4415  Schoenoplectus acutus var. occidentalis John Hunter Thomas 1981-7-12 20698 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  SJSU1654  Schoenoplectus acutus var. occidentalis L. S. Chan 1955-5-29 112 San Mateo freshwater pond near San Gregorio Beach Comment
  CAS-BOT-BC111604  Schoenoplectus californicus George Thomas Oberlander 1949-7-30 322 San Mateo Marsh, San Andreas Lake Comment
  UC1100905  Scirpus maritimus Malcolm A. Nobs, S. Galen Smith 1949-8-25 1564 San Mateo marshes at Sharp Park Comment
  UC2159  Scirpus microcarpus J. Burtt Davy 1893-6-22 765 San Mateo marsh at head Lake Pilarcitos; marsh at head Lake Pilarcitos Comment
  UC841375  Scirpus microcarpus C. B. Carter 1928-11-11 San Mateo La Honda Canyon Comment
  POM51487  Scoliopus bigelovii H. R. Ebright 1922-03 s.n. San Mateo Lake Pilarcitos. Comment
  UC311083  Scoliopus bigelovii A. D. E. Elmer March, 1903 4559 San Mateo King's Mt. Comment
  UC494236  Scoliopus bigelovii Anna E. Ehlers 278 San Mateo San Andreas Comment
  UC75028  Scoliopus bigelovii C. F. Baker 1902-3-18 322 San Mateo King's Mt. Comment
  CAS-BOT-BC519003  Scoliopus bigelovii L. R. Abrams 1902-3-16 2283 San Mateo Kings Mountain Comment
  CAS-BOT-BC519014  Scoliopus bigelovii James McMurphy 1906-3-9 s. n. San Mateo Below Kings Mountain Comment
  RSA0028841  Scoliopus bigelovii D. D. Keck 1932-2-12 1359 San Mateo La Honda Road, east slope of Coast Range above Searsville Lake 305 Comment
  SEINET12051467  Scoliopus bigelovii F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -223 San Mateo 0.5 mi from junction of Kings Mt Rd & CA 35, on former enroute to Woodside, near Skyline Trail head 580 Comment
  CDA7621  Scolymus hispanicus T. C. Fuller 1965-7-8 13755 San Mateo D. McBryde property, 140 Eleanor Drive, Woodside. 0 Comment
  JEPS23869  Scrophularia californica J. H. Thomas 1949-10-16 1153 San Mateo just n of outlet San Gregorio Creek Comment
  CAS-BOT-BC59062  Sedum spathulifolium H. L. Mason 1921-7-1 s.n. San Mateo Pescadero Creek Comment
  UCR26155  Sedum spathulifolium G. R. Ballmer 1982-4-24 s.n. San Mateo San Bruno Mtn near Daly City. 370 Comment
  CAS-BOT-BC59052  Sedum spathulifolium Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain, below parking lot on the top of the mountain. Comment
  UC311548  Senecio aronicoides A. D. E. Elmer May 1903 4508 San Mateo San Bruno Hills Comment
  CAS-BOT-BC363385  Senecio aronicoides W. R. Dudley 1893-5-27 s.n. San Mateo Santa Cruz Peninsula. Near Summit Springs - Kings Mt. Comment
  CAS-BOT-BC363396  Senecio aronicoides Le Roy Abrams 1901-5-11 1612 San Mateo Colma Comment
  CAS-BOT-BC363402  Senecio aronicoides Kellogg No date on label s.n. San Mateo Crystal Springs Comment
  RSA0012700  Senecio aronicoides C. F. Baker 1903-4-6 1900 San Mateo San Bruno Hills, San Francisco. [San Mateo] Comment
  CAS-BOT-BC365648  Senecio elegans John H. Thomas 1975-1-12 17673 San Mateo Thornton Beach State Park in NW part of county Comment
  CAS-BOT-BC353468  Senecio jacobaea Peter Rubtzoff 1975-10-24 8434 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction. Uppermost part of East Fork Colma Creek, at the northwest corner of Fog Forest, San Bruno Mountains. Comment
  CAS-BOT-BC364636  Senecio vulgaris John H. Thomas 1956-12-23 6481 San Mateo At 198 Oak Court, Menlo Park Comment
  CDA28813  Sequoia sempervirens D. G. Kelch 2009-6-9 9 .406 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
Read comments
Sep 21 2011
  CDA34046  Sequoia sempervirens D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .156 San Mateo Santa Cruz Mountains; Along Route 9, ~5 km E of Big Basin Redwoods. Comment
  RSA15298  Sequoia sempervirens C. B. Wolf 1927-4-3 268 San Mateo 1 mile above La Honda. Santa Cruz Mountains 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
  UC429816  Sequoia sempervirens W. R. Dudley 1901-1 San Mateo near Searsville Comment
  CAS-BOT-BC85782  Sequoia sempervirens unspecified 1901-1-27 s.n. San Mateo Mountain side West of Preston Place Comment
  RSA170453  Sequoia sempervirens Mark Parratt 1963-2-2 512 San Mateo Santa Cruz Mountains; Big Basin Redwoods State Park, near park headquarters 183 Comment
  SEINET3243948  Setaria parviflora John Thomas Howell 1957-1 32805 San Mateo Holy Cross Cemetary, San Mateo Co. Comment
  JROH3836  Sherardia arvensis John Hunter Thomas 1989-5-11 24741 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC28466  Sherardia arvensis J. Burtt Davy Jun 21 1893-Jun 23 1893 1154 San Mateo Pilarcitos Lake and Pilarcitos Canyon Comment
  UCR121586  Sherardia arvensis George K. Helmkamp, E. A. Helmkamp 1999-6-28 4965 San Mateo Coast Range; Santa Cruz Mtns, Sky Londa; junction of Calif. Hwy 84 and Calif. Hwy 35, 5 mi south of central Redwood City 457 Comment
  JROH3827  Sherardia arvensis John H. Thomas 1955-5-6 5018 A San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  JROH3831  Sherardia arvensis John H. Thomas 1971-4-10 15762 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD122002  Sherardia arvensis K. L. Koch 1965-5-1 39 San Mateo Alpine Road, .4 mile from Portola Park turnoff. 487 Comment
  POM223278  Sidalcea diploscypha L. S. Rose 1935-6-9 35211 San Mateo Emerald Lake, W. of Redwood City Comment
  SBBG30044  Sidalcea diploscypha L. S. Rose 1935-6-9 San Mateo Emerald Lake, W of Redwood City Comment
  SD39293  Sidalcea diploscypha Janet Turner 1933-5-30 3669 San Mateo Woodside. Comment
  SEINET3561109 Image available Sidalcea diploscypha Lewis S. Rose 1933-5-17 33167 San Mateo Redwood City. Comment
  POM61910  Sidalcea malviflora subsp. laciniata A. D. E. Elmer 1903-05 4687 San Mateo San Bruno Hills. Comment
  JEPS48780  Sidalcea malviflora subsp. laciniata James G. Daly 1934-1 211 San Mateo branch of La Honda Canyon Santa Cruz Mts., , La Honda Canyon (San Gregorio Watershed) Comment
  POM151335  Silene californica C. F. Baker 1903-6-30 33522 San Mateo Crystal Springs Comment
  UC136248  Silene californica C. F. Baker 1903-6-30 3352 San Mateo Crystal Springs 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-BC386861  Silene gallica G. Edelbrock 1975-3-21 022 San Mateo On ridge ar end of crocker Street; San bruno Mountain 152 Comment
  JROH1740  Silene gallica John Hunter Thomas 1986-4-24 23978 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Escobar Gate Comment
  POM286434  Silene gallica Lyman Benson 1931-4-26 2762 San Mateo Behind Stanford U., Brookside Park, Santa Cruz mtn range. 244 Comment
  CAS-BOT-BC389197  Silene laciniata subsp. californica L. R. Abrams 1920-6-1 7494 San Mateo Santa Cruz Mountain Peninsula. Back of Redwood City Comment
  RSA477822  Silene scouleri Glenn A. Gorelick 1967-5-12 s.d. San Mateo San Bruno Mts; overlooking Daly City near San Francisco. Comment
  CAS-BOT-BC364854  Silybum marianum Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon Comment
  CAS-BOT-BC364858  Silybum marianum W. R. Dudley 1893-6-8 s.n. San Mateo Santa Cruz Peninsula. Cedro Cottage, Stanford University Comment
  CAS-BOT-BC74988  Sinapis arvensis Fred Hemphill 1973-4-8 631 San Mateo San Carlos. North of Malabar Road and Melendy Drive. 207 Comment
  JROH4442  Sisyrinchium bellum John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4444  Sisyrinchium bellum John Hunter Thomas 1981-4-23 20488 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR51646  Sisyrinchium bellum R. Ascanio 1989-4-17 s.n. San Mateo c. 2 mi north of Ano Nuevo State Reserve, E on Gazo Creek Road off Hwy 1. 85 Comment
  UCSB11441  Sisyrinchium bellum Olson, Jim 1962-4-17 San Mateo 1 mile east of Halfmoon Bay; on road to San Mateo 15 Comment
  JROH4440  Sisyrinchium bellum John H. Thomas 1964-4-19 10322 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oakwoodland near Searsville end of ridge Comment
  UCR115445  Smilacina stellata Don Pendleton 1996-4-5 s.n. San Mateo San Francisco Bay region, Edgewood County Park, western edge of Redwood City, along Edgewood Rd. north of the parking lot for the park 122 Comment
  JROH4182  Solanum americanum John Hunter Thomas 1991-11-21 25102 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  SJSU7787  Solanum americanum C. A. Staicer 1976-9-25 San Mateo San Francisquito Cr near El Camino Real, Menlo Park Comment
  SD38286  Solanum douglasii Edith A. Purer 1933-7-27 5389 San Mateo partially stabilized areas in sand dunes, two miles south of Pigeon Point Comment
  UCR122985  Solanum douglasii George K. Helmkamp, E. A. Helmkamp 2001-6-2 6782 San Mateo San Francisco Bay Region, Purisima Creek Road, east of Half Moon Bay at Purisima Creek, 3.2 miles east of CA Hwy 1 244 Comment
  UCR51662  Solanum douglasii R. Ascanio 1988-4-17 s.n. San Mateo E on Gazo Creek Road off Hwy 1, c. 2 mi. north of Ano Nuevo State Reserve 85 Comment
  SEINET10546495  Solanum douglasii Mary Susan Taylor 1978-8-30 Taylor 1860 San Mateo Comment
  CHSC57101  Solanum physalifolium var. nitidibaccatum Steven Triano 1988-5-24 214 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  JROH4184  Solanum umbelliferum Daniel Cohen 1953-4-11 22 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM203826  Solanum umbelliferum L. S. Rose 1934-2-10 34024 San Mateo Woodside Canyons in hills. Comment
  POM62325  Solanum umbelliferum C. F. Baker 1902-1-15 234 San Mateo Kings Mountain. West side of King's Mountain. Comment
  RSA523369  Solanum umbelliferum G. H. True 1936-4-5 385 San Mateo Canyon near coast between San Gregorio and Pescadero. 30 Comment
  UCD40949  Solanum wallacei J. Skoss 1948-8-22 113 San Mateo San Vincente Canyon, near Montara. Comment
Read comments
Aug 8 2007
  RSA120417  Solidago californica Roxana S. Ferris 1920-9-3 2051 San Mateo Near the upper Mud Lakes, Coal Mine Ridge; Santa Cruz Mountain Peninsula. Comment
  CAS-BOT-BC353473  Solidago elongata Peter Rubtzoff 1978-9-16 9271 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction. Western part of the area, on slope near fence, San Bruno Mountains. Comment
  SEINET11382904 Image available Solidago elongata Unknown 1931-1 s.n. San Mateo Kings Mt. Comment
  UC1777680  Solidago elongata J. D. Skoss 1948-8-22 121 San Mateo San Vicente Canyon Comment
  CAS-BOT-BC365188  Solidago velutina subsp. californica Irja Knight; Walter Knight 1963-10-7 333 San Mateo San Bruno Mountain. Cow Trough Ravine Comment
  SD30800  Solidago velutina subsp. californica Edith A. Purer 1933-8-25 San Mateo Spring Valley, along roadside. Comment
  CAS-BOT-BC365936  Soliva sessilis J. H. Thomas 1954-6-11 4283 San Mateo About 0.25 miles north of Pigeon Point Light House Comment
  JROH1245  Soliva sessilis John Hunter Thomas 1980-5-8 19960 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC909336  Soliva sessilis Ira L. Wiggins 1950-5-20 12352 San Mateo above Pescadero Beach Comment
  CAS-BOT-BC353414  Soliva sessilis Peter Rubtzoff 1976-5-22 8550 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction. East Fork Colma Creek canyon area, San Bruno Mountains. Comment
  JROH1247  Soliva sessilis John Hunter Thomas 1983-5-23 22249 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack side & low-flow crossing Comment
  RSA130975  Soliva sessilis W. R. Dudley 1895-6-6 s.n. San Mateo Near Pescadero Creek. The Santa Cruz Peninsula. Comment
  JEPS15054  Sonchus asper L. R. A. 1901-3-16 1144 San Mateo Menlo Park Comment
  JROH1263  Sonchus oleraceus John Hunter Thomas 1981-5-8 20554 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB18413  Sonchus oleraceus Hutchinson, Sandra 1964-3-24 San Mateo Crystal Springs Lake, Sawyer Camp Road, about 2.7 miles off Skyline Blvd., entrance off Millbrae Ave. 106 Comment
  RSA126377  Sorghum bicolor John H. Thomas 1959-11-19 8513 San Mateo Near Bayshore & University Avenue, East Palo Alto Comment
  JEPS13123  Sparganium eurycarpum var. eurycarpum V. F. Hesse 1955-10-10 1720 San Mateo 4 mi from Pescadero (pond near Butano road) 60 Comment
  JROH5528  Sparganium eurycarpum var. eurycarpum M. Whitley 1990-5-28 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By west edge of dam. Comment
  CAS-BOT-BC236627  Spartina foliosa Ira L. Wiggins 1938-11-25 9213 San Mateo Along Dumbarton Bridge approach. Comment
  RSA23203  Spartina foliosa I. L. Wiggins 1938-11-25 9213 San Mateo Along Dumbarton Bridge approach Comment
  UCD92988  Spartina foliosa Malcolm A. Nobs; S. Galen Smith 1949-8-27 1622 San Mateo E of Redwood City. Comment
  SEINET7062814  Spergula arvensis subsp. arvensis A. G. Vestal 1937-6-15 s.n. San Mateo Pebble Beach west of Pescadero. UTM Zone 10, 551765mE, 4121313mN. (WGS84/NAD83). 0 Comment
  JROH1754  Spergularia John Hunter Thomas 1977-6-16 18802 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1761  Spergularia John Hunter Thomas 1983-4-3 21309 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  CAS-BOT-BC390201  Spergularia bocconi G. B. Rossbach; R. P. Rossbach 1940-6-20 737 San Mateo 1 mile south of Montara Point Comment
  CAS-BOT-BC390207  Spergularia bocconi Alice Eastwood 1937-7-25 18888 San Mateo Pebble Beach, Pescadero Comment
  RSA23193  Spergularia macrotheca I. L. Wiggins 1938-7-9 8932 San Mateo Pigeon Point light house. Comment
  CAS-BOT-BC390454  Spergularia macrotheca var. macrotheca J. H. Thomas 1954-5-28 4244 San Mateo Guadalupe Valley, about 2 miles south of San Francisco - San Mateo County line 30 Comment
  CAS-BOT-BC390458  Spergularia macrotheca var. macrotheca Robert Robertson 1954-5-1 115 San Mateo Bench at Pescadero Beach 9 Comment
  CAS-BOT-BC390703  Spergularia rubra Philip C. Wheeler 1965-5-17 s.n. San Mateo San Bruno Mountain. In Crocker Hills near the Cow Palace Comment
  RSA0097346  Spergularia rubra var. perennans Lyman Benson 1934-7-29 6113 San Mateo Moss Beach. Pcific Ocean watershed. 15 Comment
  SJSU15220  Stachys ajugoides Toni Corelli 2011-5-23 702 San Mateo Bean Hollow State Beach, Arroyo de los Frijoles Trail. Coastal bluff top south of Bean Hollow Beach 10 Comment
  SJSU15801  Stachys ajugoides Toni Corelli 2010-6-1 637 San Mateo Wavecrest, west of Highway 1 in Half Moon Bay. 25 Comment
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Dec 26 2021
  CAS-BOT-BC164653  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
  POM63302  Stachys ajugoides A. D. E. Elmer 1903-06 4260 San Mateo Crystal Springs Lake. Comment
  JEPS34472  Stachys ajugoides var. rigida L. R. Heckard, and R. Bacigalupi 1963-7-2 1361 San Mateo trail to Montara Peak (nw slope) (above old county road); Montara Peak 304 Comment
  JEPS100827  Stachys bullata Dean W. Taylor 2000-6-12 17465 San Mateo Montara Mountain, Scarper Peak, western slope of the peak near the summit 502 Comment
  JROH2899  Stachys bullata John H. Thomas 1971-5-30 15977 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UC25937  Stachys bullata J. Burtt Davy 1895-4-20 1036 San Mateo Lake San Andreas Comment
  UCR122977  Stachys bullata George K. Helmkamp, E. A. Helmkamp 2001-6-2 6771 San Mateo San Francisco Bay Region, Purisima Creek Road, east of Half Moon Bay at Purisima Creek, 3.2 miles east of CA Hwy 1 244 Comment
  RSA116738  Stachys bullata W. R. Dudley 1894-7-7 s.n. San Mateo Bear Gulch Road. The Santa Cruz Mtn Peninsula. Comment
  SEINET10499250  Stachys bullata A. Arthur Heller 1907-5-28 Heller 8581 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  JROH2917  Stachys pycnantha John H. Thomas 1963-6-23 10162 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC306579  Stachys pycnantha A. D. E. Elmer June, 1903 4261 San Mateo Alpine School House Comment
  JROH1783  Stellaria media John Hunter Thomas 1978-4-20 19073 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC394062  Stellaria media Fred Hemphill 1973-3-9 641 San Mateo 347 Alberta Way, Hillsborough (1 mile from Skyline Blvd.) Comment
  JROH1789  Stellaria nitens John H. Thomas 1968-3-17 14196 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC398982  Stellaria nitens H. A. Dutton 1900-3-25 s.n. San Mateo Woodside. Northside of stone fence Comment
  CAS-BOT-BC375211  Stephanomeria elata Elizabeth McClintock; Walter Knight; Irja Knight 1967-8-1 s.n. San Mateo San Bruno Mountain. South side of Ridge Road about 200 yards south of Parking Lot Comment
  RSA128948  Stephanomeria virgata subsp. virgata J. T. Howell 1939-10-8 15369 San Mateo Pt San Pedro. Comment
  CAS-BOT-BC423015  Stylomecon heterophylla Walter Knight; Irja Knight 1965-3-27 1017 San Mateo San Bruno Mountain. Devil's Gulch. Comment
  RSA120029  Symphoricarpos albus var. laevigatus G. H. Mallory 1919-8-20 s.n. San Mateo Near La Honda. Comment
  SD4989  Symphoricarpos albus var. laevigatus Ulysses S. Grant IV Jun 1925 San Mateo Near La Honda. Comment
  CAS-BOT-BC237061  Symphoricarpos mollis Eric Walther 1919-7-4 s.n. San Mateo Woodside Comment
  CAS-BOT-BC237070  Symphoricarpos mollis Fred Hemphill 1973-4-22 702 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-BC99088  Symphyotrichum chilense Josephine D. Randall 1907-7-23 54 San Mateo Near Crystal Springs Lake - Santa Cruz Peninsula Comment
  CAS-BOT-BC99059  Symphyotrichum chilense Walter Knight; Irja Knight 1963-10-7 321 San Mateo San Bruno Mountain - Cow Trough Ravine, South San Francisco Comment
  CAS-BOT-BC99095  Symphyotrichum chilense W. R. Dudley 1897-10-10 s.n. San Mateo Near Pilar Point Comment
  HSC23979  Symphyotrichum chilense Mary Katherine Wicksten 1971-6-24 117 San Mateo Huddart Park, by park entrance Comment
  UC57661  Symphyotrichum subspicatum unknown 1874-9-19 San Mateo Belmont Comment
  JROH1281  Tanacetum parthenium John Hunter Thomas 1991-11-21 25107 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing of San Francisquito Creek Comment
  JROH1286  Taraxacum officinale John H. Thomas 1976-4-19 18084 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UCSB18688  Taraxia ovata Schulte, John 1963-4-27 San Mateo Jasper Ridge; 3 miles southwest of Stanford Campus; between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  SEINET3157058  Tauschia kelloggii L. S. Rose 1939-5-5 39092 San Mateo San Mateo Canyon 46 Comment
  UC875689  Tauschia kelloggii Lewis S. Rose 1939-5-5 39092 San Mateo San Mateo Canyon 45 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
  CAS-BOT-BC447476  Tellima grandiflora Philip C. Wheeler; Elizabeth McClintock 1967-6-11 s.n. San Mateo North facing brushy slope to south of new Guadalupe Parkway just before it meets Radio Road Comment
  JROH3910  Tellima grandiflora H. J. Dengler 1961-5-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Shaded creek bank N.E. of Searsville Rocks, across creek from violet site. Comment
  RSA195668  Tellima grandiflora John H. Thomas 1967-5-7 12836 San Mateo Near intersections of Bean Hollow and Pescadero roads, about 0.5 mile westward from Pescadero. 61 Comment
  CAS-BOT-BC438265  Tetragonia tetragonoides J. H. Thomas 1959-7-8 8015 San Mateo At Pescadero Beach. Comment
  CAS-BOT-BC399852  Thalictrum polycarpum Alice Eastwood 1922-5-30 11330 San Mateo Crystal Springs Lake Comment
  JROH1609  Thysanocarpus curvipes John Hunter Thomas 1986-5-1 23993 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old gate and fence (which has now been removed) Comment
  JROH1588  Thysanocarpus curvipes subsp. curvipes John Hunter Thomas 1978-4-8 19059 D San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1592  Thysanocarpus curvipes subsp. curvipes John Hunter Thomas 1981-4-4 20257 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM354789  Tiarella trifoliata var. unifoliata E. S. Spalding 1924-6-6 s.n. San Mateo La Honda. Comment
  JROH404  Torilis nodosa John Hunter Thomas 1991-5-2 25021 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH383  Torilis nodosa John Hunter Thomas 1980-5-13 19966 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH389  Torilis nodosa John Hunter Thomas 1983-4-28 21784 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH398  Torilis nodosa John Hunter Thomas 1986-5-17 24047 San Mateo Jasper Ridge Biological Preserve, Stanford University; dam to Rattlesnake Rock Comment
  CAS-BOT-BC81497  Torreya californica William R. Dudley 1894-4-24 s.n. San Mateo near La Honda, Santa Cruz Mts. Comment
  RSA347049  Torreya californica Lyman Benson 1930-6-14 2156 San Mateo Small creek, south La Honda, Santa Cruz Mountain Range 244 Comment
  SEINET10793120  Torreyochloa pallida var. pauciflora Adolph D. E. Elmer Elmer 4692 San Mateo Pilarcitos Creek Comment
  JROH4757  Toxicoscordion fremontii Richard L. Garber 1971-5-18 25 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5913  Toxicoscordion fremontii L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail behind weather station, near upper grassland Comment
  CAS-BOT-BC377138  Tragopogon porrifolius Phillip Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Crocker Industrial Park 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
  RSA460866  Trientalis latifolia E. S. Spalding 1924-6-28 s.n. San Mateo San Mateo, La Honda Comment
  UCD117573  Trientalis latifolia D. H. Hartmann 1941-4-26 s.n. San Mateo west of Palo Alto. Comment
  JEPS127793  Trifolium albopurpureum Adam C. Schneider with C. Matt Guilliams 2013-4-7 64 San Mateo Along Dirt Road running parallel to overhead power transmission lines. GPS coordinates approximate. Comment
  POM278023  Trifolium albopurpureum Lyman D. Benson 1935-5-5 6527 San Mateo Lake Searsville. 152 Comment
  UC630750  Trifolium albopurpureum var. albopurpureum A. A. Heller 1907-5-23 8554 San Mateo back of San Mateo (on Half Moon Bay Rd) Comment
  UC725851  Trifolium albopurpureum var. albopurpureum A. A. Heller 1907-5-23 8554 San Mateo back of San Mateo (on Half Moon Bay Rd) Comment
  JEPS128163  Trifolium angustifolium Eric Wrubel 2012-7-1 NPS 43 San Mateo Golden Gate National Recreation Area. Rancho Corral de Tierra, Spine Trail. Comment
  POM226873  Trifolium barbigerum L. R. Abrams 1914-4-2 5080 San Mateo Menlo Heights. Comment
  UC165524  Trifolium barbigerum J. Burtt Davy 1895-1 1015 San Mateo Pilacitos Comment
  SJSU7992  Trifolium bifidum var. bifidum M. S. Hall 1965-5-8 111 San Mateo near canyon bottom, W San Carlos Hills Comment
  JROH2248  Trifolium bifidum var. decipiens G. C. Kimber & Lucile Roush 1918-5-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA14963  Trifolium bifidum var. decipiens L. S. Rose 1935-5-1 35134 San Mateo Redwood City Comment
  UCSC005498  Trifolium bifidum var. decipiens Randall Morgan 1995-6-22 2795 San Mateo Ridge west of Waterman Creek Comment
  POM278639  Trifolium depauperatum Lyman D. Benson 1930-5-1 2064 San Mateo Stanford University. 122 Comment
  JROH2273  Trifolium depauperatum var. truncatum John H. Thomas 1974-4-25 17205 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge Comment
  RSA8349  Trifolium dichotomum L. S. Rose 1933-5-17 33172 San Mateo Redwood City Comment
  JROH2279  Trifolium dubium John Hunter Thomas 1978-4-25 19150 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2310  Trifolium fucatum John Hunter Thomas 1992-5-5 25214 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5960  Trifolium glomeratum John Rawlings 2017-5-30 2086 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road B at edge of oak scrub, 81 Comment
  JROH2312  Trifolium glomeratum Ann Lambrecht 2006-4-21 23 San Mateo Jasper Ridge Biological Preserve, Stanford University; roadside, N side of Road A, in old seven acre lease lot Comment
  UCSC005955  Trifolium gracilentum Randall Morgan 1995-6-6 2722 San Mateo Pescadero State Beach (HW 1 opposite Pescadero Road) Comment
  RSA120974  Trifolium grayi W. R. Dudley 1896-4-17 s.n. San Mateo Pebble Beach Pasture. Pescadero. Comment
  RSA10399  Trifolium macraei Carl B. Wolf 1927-6-15 2171 San Mateo Along Skyline Drive, 8 mi. S of San Francisco. Comment
  UC575704  Trifolium microcephalum Lewis S. Rose 1935-5-1 35139 San Mateo Belmont Comment
  JROH2363  Trifolium subterraneum John Hunter Thomas 1988-5-3 24435 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Lakeside Laboratory Comment
  UCD78150  Trifolium tomentosum Robert E. Preston 2008-4-2 2602 San Mateo 1.1 mi SE of San Andreas Reservoir, at jct two dirt roads 107 Comment
  SEINET10577426  Trifolium tridentatum var. tridentatum Charles F. Baker 1903-4-8 Baker 3011 San Mateo San Andreas Lake Comment
  JROH2381  Trifolium variegatum John H. Thomas 1971-4-10 15762 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2386  Trifolium variegatum John Hunter Thomas 1978-4-20 19080 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18091  Trifolium variegatum Carl B. Wolf 1929-4-24 365724 San Mateo south west end of Jasper Ridge, near Searsville Lake Comment
  UCSC006359  Trifolium variegatum Randall Morgan 1995-6-6 2725 San Mateo Group at Bean Hollow State Beach 2.5 mi S of Pescadero Rd. 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
  RSA119330  Trifolium variegatum var. variegatum S. S. Tillett, I. Sternbacback 1956-6-24 538 San Mateo Behind (n.) Portola Camp Store, just outside Portola State Park 396 Comment
  JROH2402  Trifolium willdenovii John H. Thomas 1974-4-12 17144 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2404  Trifolium willdenovii John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM20398  Trifolium willdenovii A. D. E. Elmer 1903-05 4716 San Mateo Belmont. Comment
  POM226853  Trifolium willdenovii L. R. Abrams 1914-4-2 5075 San Mateo Menlo Heights. Comment
  UC311114  Trifolium wormskioldii A. D. E. Elmer April, 1903 4858 San Mateo Lake San Andreas Comment
  UCSC007777  Trifolium wormskioldii Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  UC4021  Trillium chloropetalum Michener and Bioletti Mar 1893 4 San Mateo near Colma Comment
  POM170078  Trillium chloropetalum var. chloropetalum C. F. Baker 1902-3-30 431 San Mateo Crystal Springs Lake. Comment
  RSA116750  Trillium chloropetalum var. chloropetalum James I. McMurphy 1902-3-22 s.n. San Mateo Above Portola. Comment
  POM290752  Trillium chloropetalum var. giganteum Lyman Benson 1929-3-2 989 San Mateo Hill above Lake Searsville. Comment
  CAS-BOT-BC521061  Trillium chloropetalum var. giganteum W. R. Dudley 1894-3-26 s.n. San Mateo Kings Mt. Comment
  CAS-BOT-BC521206  Trillium chloropetalum var. giganteum C. F. Leithold 1894-3-26 s.n. San Mateo Santa Cruz Peninsula: Lobitos Creek Comment
  CAS-BOT-BC133430  Trillium ovatum George Oberlander 1950-3-11 455 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC133446  Trillium ovatum J. H. Thomas 1949-3-29 190 San Mateo King's Mountain Comment
  UC142146  Trillium ovatum Dr. E. L. Greene 1902-3-18 329 San Mateo West side King's Mountain, San Mateo County Comment
  RSA15280  Trillium ovatum Carl B. Wolf 1927-4-3 246 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  SEINET8480550 Image available Trillium ovatum L. M. Henry, M. E. Springer 1946-7-21 370 San Mateo La Honda Comment
  JEPS100825  Triphysaria eriantha subsp. rosea Dean W. Taylor 2000-6-12 17463 San Mateo Highway 1 at junction Pescadero Road, Pescadero State beach 6 Comment
  CAS-BOT-BC238562  Triphysaria floribunda L. R. A. 1902-4-13 2321 San Mateo Lake San Andreas Comment
  JEPS10445  Triphysaria versicolor subsp. versicolor Adele Lewis Grant 1917-5-6 934 San Mateo Pebble Beach 3 Comment
  JEPS13740  Triphysaria versicolor subsp. versicolor Frank W. Gould 1939-5-6 652 San Mateo coast highway 13 mi n Santa Cruz County line 15 Comment
  JROH5468  Trisetum canescens John Rawlings 2013-4-16 1131 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along the Escobar Gate fence line about 100 m east of the gate. 149 Comment
  UCD93599  Trisetum canescens P. B. Kennedy 1916-4-1 s.n. San Mateo Daly City, Colma Canyon, S San Francisco. Comment
  CAS-BOT-BC523097  Triteleia ixioides subsp. ixioides Fred Hemphill 1973-5-14 829 San Mateo San Carlos, area north of Malabar Road and Melendy Drive 207 Comment
  UC765952  Triteleia ixioides subsp. ixioides R. F. Hoover 1941-5-20 5113 San Mateo near Martin Creek (on grade above Portola on La Honda road) Comment
  CAS-BOT-BC523100  Triteleia ixioides subsp. ixioides C. F. Leithold 1893-5-27 s.n. San Mateo Santa Cruz Peninsula, road between Woodside and King's Mountain 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
  SD39088  Triteleia laxa Janet Turner 1933-4-18 3688 San Mateo Emerald Lake. Comment
  CAS-BOT-BC526363  Triteleia laxa John H. Thomas 1971-5-2 15847 San Mateo Near intersection of Canada and Edgewater Roads, about 4 miles SW of center of Redwood City 304 Comment
  JEPS82916  Triteleia peduncularis Roy E. Buck and Randall A. Morgan 1983-6-7 332 San Mateo in triangle of Edgewood and Canada Rds. and Hwy. I-280 San Francisco Watershed Reserve 152 Comment
  CAS-BOT-BC74059  Turritis glabra Elizabeth McClintock; Paul Reeberg 1988-3-15 s.n. San Mateo San Bruno Mountain. Near Ranger Station (Nike Base). Comment
  RSA149146  Ulex europaeus John H. Thomas 1961-5-7 9322 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  CAS-BOT-BC91224  Umbellularia californica John H. Thomas 1971-5-2 15860 San Mateo Near intersection of Canada and Edgewater roads, about 4 miles southwest of center of Redwood City. 304 Comment
  RSA132457  Umbellularia californica John H. Thomas 1959-8-22 8081 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  CAS-BOT-BC403973  Urtica dioica subsp. gracilis V. F. Hesse 1952-5-12 941 San Mateo Gazos Creek Canyon, about 4 miles from sea coast 45 Comment
  CAS-BOT-BC404027  Urtica dioica subsp. holosericea Walter Knight; Irja Knight 1964-9-2 725 San Mateo San Bruno Mountain. In Buckeye Canyon Comment
  CAS-BOT-BC412536  Urtica urens John H. Thomas 1968-12-18 14870 San Mateo About 1 mile west of Pescadero toward the coast Comment
  CAS-BOT-BC199355  Vaccinium ovatum Josephine D. Randall 1907-4-27 139 San Mateo Kings Mt. Comment
  CAS-BOT-BC199368  Vaccinium ovatum James McMurphy 1902-3-22 s.n. San Mateo Above Portola Comment
  CAS-BOT-BC199373  Vaccinium ovatum Javier Penalosa 1963-3-9 2693 San Mateo Ravine 1/2 mi. east of 1314ft. summit 304 Comment
  HSC98190  Vaccinium ovatum L. S. Rose 1969-3-27 69007 San Mateo Kings Mountain Road, 4 mi. W of Woodside 305 Comment
  POM222793  Vaccinium ovatum S. S. Berry 1909-3-13 s.n. San Mateo San Mateo Comment
  RSA471173  Vaccinium ovatum L. S. Rose 1934-2-23 34036 San Mateo King's Mountain. Comment
  RSA681682  Vaccinium ovatum Annuschka Deb 1989-6-13 254 San Mateo Woodside. Comment
  CAS-BOT-BC199465  Vaccinium parvifolium A. D. E. Elmer 1903-5-1 4924 San Mateo Butano Creek Comment
  UC306548  Vaccinium parvifolium A. D. E. Elmer May 1903 4924 San Mateo Butano Creek Comment
  CAS-BOT-BC76140  Vancouveria planipetala Dr. E. B. Copeland 1903-5-9 3051 San Mateo Big Basin. Comment
  JROH4261  Verbena lasiostachys var. lasiostachys John H. Thomas 1975-6-5 17932 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just outside gate. Comment
  JROH4283  Verbena lasiostachys var. scabrida John Hunter Thomas 1986-6-7 24081 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1618125  Veronica americana Donald G. Nelson 1940-7-7 697 San Mateo highway from Half Moon Bay to San Mateo (along Pilarcitos Creek); Pilarcitos Creek 76 Comment
  POM283828  Veronica persica Lyman D. Benson 1935-5-5 6518 San Mateo Lake Searsville. Stanford University. Santa Cruz Mtn range. S.F. Bay watershed. 152 Comment
  UC2049896  Vicia americana subsp. americana H. W. Johansen 1958-5-18 22 San Mateo Coast Hwy 1, S of Pescadero Comment
  RSA34061  Vicia americana var. americana A. A. Heller 1907-4-20 8449 San Mateo Lake Merced Comment
  UC673611  Vicia americana var. americana Herbert L. Mason 1927-4-23 3675 a San Mateo summit of road from La Honda to Pescadero Creek Comment
  UCD108698  Vicia americana var. americana A. A. Heller 1907-4-20 8449 San Mateo Near Lake Merced. Comment
  SEINET12157777  Vicia americana var. villosa M. T. Doutt 1931-1 183 San Mateo Pigeon Pt Comment
  SJSU15431  Vicia benghalensis Toni Corelli 2010-5-4 624 a San Mateo Ano Nuevo State Park, Cascade Field, Cascade Creek Trail 25 Comment
  POM16746  Vicia gigantea A. D. E. Elmer 1903-06 4445 San Mateo Pescadero Comment
  RSA397993  Vicia gigantea Emery M. Whilton 1935-2-23 s.n. San Mateo Near Mussel Rock Comment
  JROH2439  Vicia sativa subsp. nigra John Hunter Thomas 1982-5-18 20945 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Searsville Lake near bridge Comment
  JROH2433  Vicia sativa subsp. nigra John H. Thomas 1965-4-10 10559 San Mateo Jasper Ridge Biological Preserve, Stanford University; near west end of Searsville Dam Comment
  UCD164424  Vicia sativa subsp. nigra Peter Rubtzoff 1977-6-21 9062 San Mateo San Bruno Mounains. 'Saddle' area on N side of Guadalupe Canyon Parkway west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  UCR123142  Vicia tetrasperma George K. Helmkamp, E. A. Helmkamp 2001-6-2 6769 San Mateo Central Coast, Pillar Point Harbor, about 4 miles north of Half Moon Bay 6 Comment
  SFV8403  Vinca major P. Kuehn 1967-5-7 15 San Mateo Skyline Blvd, 8 miles from Half Moon Bay. 610 Comment
  UCD121405  Vinca major C. M. Rivera 1969-5-24 17 San Mateo ca. 1 1/2 miles south of State Highway 35 intersection with Skyline Blvd., Belmont. Comment
  CAS-BOT-BC264039  Viola adunca Ira L. Wiggins 1931-2-21 5091 a San Mateo Near the beach, Pescadero Beach Comment
  UC19283  Viola glabella J. Burtt Davy 1895-4-20 1056 San Mateo Pilarcitos Creek Comment
  CAS-BOT-BC536570  Viola glabella E. A. McGregor 1908-3-28 s.n. San Mateo Kings Mt. Comment
  CAS-BOT-BC536830  Viola glabella J. H. Thomas 1949-4-14 283 San Mateo Kings Mt. Comment
  RSA10996  Viola glabella Carl B. Wolf 1928-3-14 1533 San Mateo La Honda Grade, Santa Cruz Mountains. Comment
  RSA15278  Viola glabella Carl B. Wolf 1927-4-3 244 San Mateo 1 mile above La Honda. Santa Cruz Mountains. Comment
  UC581538  Viola ocellata Herbert L. Mason 1927-4-23 3696 San Mateo Pescadero Creek near Bloomquists Mill; Pescadero Creek Comment
  SEINET204884 Image available Viola ocellata W. D. McLellan 1954-5-17 58 San Mateo Memorial Park near Pescadero Comment
  RSA184886  Viola pedunculata L. S. Rose 1965-3-25 65009 San Mateo San Bruno Mountains, north end. 122 Comment
  RSA412722  Viola pedunculata Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mountains, 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
  OBI78517  Viola pedunculata Lewis S. Rose 1965-3-25 65009 San Mateo San Bruno Mts N end 122 Comment
  SBBG34009  Viola pedunculata L. S. Rose 1968-3-26 68010 San Mateo S base of San Bruno Mtn; South San Francisco 30 Comment
  SEINET191584 Image available Viola pedunculata L. S. Rose 1941-3-20 41047 San Mateo Milbrae 122 Comment
  RSA130691  Viola sempervirens W. R. Dudley 1893-1-20 s.n. San Mateo El Corte Madera. The Santa Cruz Mountain Peninsula. Comment
  CAS-BOT-BC182765  Vulpia bromoides Peter Rubtzoff 1978-5-18 9169 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction and northwest of Fog Forest. Comment
  CAS-BOT-BC199846  Vulpia bromoides W. R. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs Comment
  CAS-BOT-BC199852  Vulpia bromoides W. R. Dudley 1899-5-14 s.n. San Mateo Top of Sneath Ranch Hill Comment
  CAS-BOT-BC199859  Vulpia bromoides Elizabeth McClintock 1964-4-17 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC199860  Vulpia bromoides William Lundgren 1974-7-1 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC210154  Vulpia bromoides Peter Rubtzoff 1977-6-7 9031 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC184550  Vulpia microstachys var. pauciflora H. A. Dutton 1900-3-11 s.n. San Mateo Woodside Comment