Search Results — 2000 specimen records retrieved (1339 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
  CAS-BOT-BC383898  Abronia latifolia W. R. Dudley 1896-11-15 s.n. San Mateo Santa Cruz Peninsula. Spanish town Comment
Read comments
Feb 10 2022
  RSA0025759  Abronia latifolia C. F. Baker 1902-10-1 1741 San Mateo Pillar Point. Comment
  SEINET945976  Abronia umbellata C. F. Baker 1902-1 1742 San Mateo Pillar Point. Comment
  CAS-BOT-BC451120  Acaena pinnatifida var. californica W. R. Dudley 1901-5-11 s.n. San Mateo Near Colma; Santa Cruz Peninsula Comment
  CAS-BOT-BC219606  Acanthomintha duttonii D. K. Gillespie 1930-4-21 9220 San Mateo Emerald Lake near Redwood City Comment
  CAS-BOT-BC219607  Acanthomintha duttonii A. D. E. Elmer 1903-5-1 4538 San Mateo Crystal Springs Lake Comment
  LA55133  Acanthomintha ilicifolia Harry A. Dutton; Harriet A. Walker 1915-5-29 3819 San Mateo near the Menlo Golf Club Comment
Read comments
Jul 30 2017
  SD4349  Acanthomintha obovata Harry A. dutton, H. A. Walker May 26 & 29, 1915 3819 San Mateo Near the Menlo Golf Club. Found on a small area in sandy soil, on a hillside sloping to the south. Comment
  CAS-BOT-BC333210  Acer macrophyllum W. R. Bentley 1957-4-6 74 San Mateo 1 mile above Alpine Road on county fire road between Portola Valley and Page Mill road. 91 Comment
  CAS-BOT-BC333288  Acer macrophyllum W. R. Dudley 1906-6-14 s.n. San Mateo Santa Cruz Mountain Peninsula. San Francisquito Creek, near Cedro Cottage, Stanford Univ. Comment
  CAS-BOT-BC333292  Acer macrophyllum L. R. Abrams no date on label s.n. San Mateo La HOnda Comment
  RSA116907  Acer macrophyllum W. R. Dudley 1906-6-30 s.n. San Mateo Los Truncos Road, near Los Truncos Dairy Comment
  UC311553  Acer macrophyllum A. D. E. Elmer May 1903 4509 San Mateo Portola Comment
  POM222810  Acer negundo subsp. californicum S. S. Berry 1909-3-31 s.n. San Mateo San Francisquito Creek. 61 Comment
  CAS-BOT-BC336919  Acer negundo var. californicum C. F. Baker 1902-4-6 472 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC21552  Achillea millefolium John H. Thomas 1955-4-6 4835 San Mateo San Bruno Mountain just north of South San Francisco 91 Comment
  CAS-BOT-BC21581  Achillea millefolium Ned Cahill 1974-4-19 144 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC28766  Achillea millefolium K. L. Chambers 1984-6-14 5139 San Mateo San Gregorio State Beach, Highway 1. 30 Comment
  JROH446  Achillea millefolium John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH448  Achillea millefolium John Hunter Thomas 1981-4-23 20489 San Mateo Jasper Ridge Biological Preserve, Stanford University 130 Comment
  JROH450  Achillea millefolium John Hunter Thomas 1986-5-6 24016 San Mateo Jasper Ridge Biological Preserve, Stanford University 181 Comment
  SBBG25068  Achillea millefolium D. Myrick 1966-6-11 1446 San Mateo off Hwy 1, S of San Francisco near Pescadero Comment
  UCD18525  Achillea millefolium June McCaskill 1954-5-8 300 San Mateo Moss Beach. Comment
  CAS-BOT-BC21582  Achillea millefolium Cherie Wetzel 1969-6-20 863 San Mateo Near Canada College, Redwood City, just off Farm Hill Blvd. Comment
  CAS-BOT-BC21594  Achillea millefolium Elizabeth McClintock 1972-4-23 s.n. San Mateo San Bruno Mountain, above Fern Rock Comment
  CAS-BOT-BC21599  Achillea millefolium Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Colma Canyon. Comment
  UCSC004912  Achillea millefolium Monica Larenas 1985-6-1 16 San Mateo Hwy 92, summit near intersection with Skyline Blvd Comment
  CAS-BOT-BC29100  Achyrachaena mollis David D. Keck 1932-5-6 1484 San Mateo Hills just west of Millbrae Highlands 120 Comment
  CAS-BOT-BC389697  Acmispon glaber Mary K. Wicksten 1975-6-19 129 San Mateo Mt. Ellen Trail Comment
  JROH2076  Acmispon glaber var. glaber John Hunter Thomas 1989-5-11 24728 San Mateo Jasper Ridge Biological Preserve, Stanford University; near hillside laboratory 157 Comment
  JEPS127788  Acmispon wrangelianus Adam C. Schneider with C. Matt Guilliams 2013-4-7 59 San Mateo Along dirt road running parallel to overhead power transmission lines. GPS coordinates approximate. Comment
  JROH2093  Acmispon wrangelianus John H. Thomas 1966-4-24 11578 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2095  Acmispon wrangelianus John H. Thomas 1967-5-10 12848 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1537327  Actaea rubra Gordon H. True Jr. 1936-4-5 390 San Mateo canyon between San Gregorio and Pescadero 152 Comment
  CAS-BOT-BC391675  Actaea rubra W. R. Dudley 1904-4-23 s.n. San Mateo Santa Cruz Mountain Peninsula. By lower part Goat Ranch Creek Comment
  CAS-BOT-BC29295  Adenocaulon bicolor A. D. E. Elmer 1903-6-1 4300 San Mateo Pescadero Creek Comment
  UC859034  Adenostoma fasciculatum Lewis S. Rose 1932-5-22 32259 San Mateo Belmont Comment
  RSA112393  Adenostoma fasciculatum var. fasciculatum W. R. Dudley 1895-6-14 s.n. San Mateo Top of ridge near Searsville Dam. Comment
  CAS-BOT-BC65514  Adiantum aleuticum D. E. Breedlove 1973-9-26 35556 San Mateo Pescadero Creek County Park 365 Comment
  JROH85  Adiantum aleuticum Lawrence J. Winship 1974-11-16 15 San Mateo Jasper Ridge Biological Preserve, Stanford University. Among wet rocks below Searsville dam. Comment
  POM281116  Adiantum aleuticum Lyman Benson 1929-3-2 973 San Mateo Kings Mountain 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
  CAS-BOT-BC65670  Adiantum jordanii Ira L. Wiggins 1928-4-14 2919 San Mateo Alpine Creek Road Comment
  JROH90  Adiantum jordanii John H. Thomas 1976-4-2 18077 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH94  Adiantum jordanii John Hunter Thomas 1985-4-22 23549 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  POM281089  Adiantum jordanii Lyman Benson 1937-7-15 8454 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains; San Francisco Bay watershed. 244 Comment
  RSA18303  Aesculus californica Carl B. Wolf 1927-5-31 413 San Mateo North end of Searsville Lake. Comment
  CHSC397  Agoseris apargioides V. Holt 1943-4-21 San Mateo San Mateo 30 Comment
  JEPS19378  Agoseris apargioides Rimo Bacigalupi and L. R. Heckard, Tsan-Iang Chuang 1937-4-11 73 San Mateo along, (s of San Francisco) Skyline Boulevard; San Francisco Comment
  JROH483  Agoseris grandiflora var. grandiflora John H. Thomas 1974-5-29 17401 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH485  Agoseris grandiflora var. grandiflora John Hunter Thomas 1981-5-25 20638 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC46175  Agoseris heterophylla Ned Cahill 1974-4-29 178 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH491  Agoseris heterophylla John H. Thomas 1971-4-10 15758 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH496  Agoseris heterophylla John Hunter Thomas 1989-5-9 24715 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC15249  Agoseris hirsuta John Thomas Howell 1926-4-24 1925 San Mateo Daly City Comment
  CAS-BOT-BC15244  Agoseris hirsuta W. R. Dudley 1893-7-1 s.n. San Mateo Stanford Campus Comment
  RSA116649  Agoseris hirsuta W. R. Dudley 1906-6-11 s.n. San Mateo In field E of Kings Mt. House Comment
  JROH4772  Agrostis avenacea John Hunter Thomas 1980-9-27 20197 San Mateo Jasper Ridge Biological Preserve, Stanford University; old bathing beach area in weeds near water's edge 120 Comment
  JROH4780  Agrostis capillaris John Rawlings 2011-6-20 1072 San Mateo Jasper Ridge Biological Preserve, Stanford University. South side of Caretaker Residence. 105 Comment
  CAS-BOT-BC127466  Agrostis densiflora John H. Thomas 1963-5-20 10153 San Mateo Ano Nuevo Island, about 0.5 mile off shore and about 20 miles northwest of Santa Cruz. Comment
  JROH4784  Agrostis exarata W. Lennihan 1990-5-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Mapache trail, 100 yards south of Trail 10, right side of trail. 112 Comment
  SACT000091  Agrostis exarata S. Smith, Malcolm Nobs 1949-8-25 San Mateo Comment
  CAS-BOT-BC139461  Agrostis hallii Margaret A. Barry 1937-6-22 177 San Mateo Coal Mine Ridge. Comment
  JROH4802  Agrostis pallens John Rawlings 2011-6-14 1073 San Mateo Jasper Ridge Biological Preserve, Stanford University. Uphill side of Trail 5. 119 Comment
  RSA457455  Agrostis pallens Lyman Benson 1937-6-24 8390 a San Mateo Coal Mine Ridge. South of Stanford University. 396 Comment
Read comments
Aug 8 2011
  SJSU16010  Agrostis pallens John Rawlings, Toni Corelli 2016-5-27 1847 San Mateo Bean Hollow bluff trail, west of Hwy 1 south of Pescadero 8 Comment
  SEINET7594107 Image available Agrostis pallens Henry E. Meser 1932-1 s. n. San Mateo Black Mountain Road, Hillborough Hills near Burlingame 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
  JROH4824  Aira caryophyllea John H. Thomas 1966-4-22 11570 San Mateo Jasper Ridge Biological Preserve, Stanford University 170 Comment
  JROH5613  Aira caryophyllea John Rawlings 2014-4-11 1216 San Mateo Jasper Ridge Biological Preserve, Stanford University; in road G immediately north of its intersection with Rd. J. 144 Comment
  SEINET3917559  Aira caryophyllea Robert A. Norris 1984-3-21 4652 San Mateo W-facing slope, Blue blossom HIll, san Bruno Mts.; 0 357 Comment
  JROH4541  Allium amplectens John H. Thomas 1975-5-26 17908 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5785  Allium amplectens John Rawlings 2016-4-26 1757 San Mateo Jasper Ridge Biological Preserve, Stanford University; rocky serpentine north side of ridge (Area C). Also found in the contact drainage just before entering oak woodland as it runs northwest after crossing Trail 9 192 Comment
  CAS-BOT-BC447499  Allium amplectens Le Roy Abrams 1902-5-8 2431 San Mateo Standford University Comment
  JROH4548  Allium falcifolium H. L. Mason 1921-5-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4552  Allium falcifolium John Hunter Thomas 1981-4-23 20473 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD138520  Allium falcifolium R. E. Dengler 1960-4-12 28 San Mateo Jasper Ridge, Stanford Biological Reserve. 190 Comment
  CDA2746  Allium neapolitanum J. E. McClellan, B. McClellan Apr 1972 San Mateo Bernal Avenue, Burlingame. 0 Comment
  UC615425  Allium peninsulare var. franciscanum Beryl O. Schreiber 1932-5-29 309 San Mateo Spring Valley Water Company Road Comment
  CAS-BOT-BC475495  Allium triquetrum D. E. Breedlove 1963-4-7 4352 San Mateo 3 miles north of Pescadero Comment
  CAS-BOT-BC474300  Allium unifolium Elizabeth McClintock; Philip Wheeler 1967-6-11 s.n. San Mateo North facing slope south of new Guadalupe Parkway to west of where it meets Radio Road Comment
  JROH1324  Alnus rhombifolia John H. Thomas 1964-11-29 10539 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below dam Comment
  UC1108513  Alopecurus saccatus James McMurphy 1906-5-8 San Mateo pond near head of Crystal Springs Lakes Comment
  CAS-BOT-BC137921  Alopecurus saccatus W. R. Dudley 1910-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula. New Grade road above Fritz Patricks. Comment
  POM192784  Amaranthus deflexus W. R. Dudley 1895-9-21 s.n. San Mateo By R.R. back of Menlo Park Station 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
  JEPS20296  Ambrosia chamissonis Lewis S. Rose 1956-8-13 56144 San Mateo Princeton 6 Comment
  SD39990  Ambrosia chamissonis Edith A. Purer 1932-7-18 4011 San Mateo Half Moon Bay on sand dunes Comment
  CAS-BOT-BC55527  Ambrosia psilostachya W. R. Dudley 1902-9-21 s.n. San Mateo On causeway over Crystal Spring Reservoir Comment
  POM139596  Amelanchier pallida L. R. Abrams 1916-4-22 5577 San Mateo Pilarcitos Canyon 3 Comment
  CAS-BOT-BC136826  Amelanchier utahensis John H. Thomas 1961-5-7 9278 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH3593  Amelanchier utahensis Roxana Stinchfield 1914-4-26 145 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Dam Comment
  JROH3595  Amelanchier utahensis John H. Thomas 1980-5-6 19935 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC136827  Amelanchier utahensis J. Ed. McClellan 1941-4-20 s.n. San Mateo Hills west of San Mateo Comment
  RSA0089684  Amsinckia intermedia John H. Thomas 1964-4-19 10324 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Near Searsville Lake. Comment
  SBBG51253  Amsinckia intermedia J. Doty 1969-3-24 581 San Mateo N side of Embarcadero Rd, just W of W boundary of Byxbee Marshlands Wildlife Preserve, Menlo Park 1 Comment
  SEINET12280466  Amsinckia intermedia M. T. Doutt 1931-1 246 San Mateo S of San Francisco, near Salada Comment
  NY380647  Amsinckia lunaris A. A. Heller 1907-5-23 8555 San Mateo Back of San Mateo on the Half Moon Bay road. Comment
  UCD119714  Amsinckia lunaris Gene B. Newcomb 1953-5-20 116 San Mateo Road west of San Mateo City to Skyline Blvd., 1.7 miles below junction to Skyline opposite pit, (Hillsborough). 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
  JROH3371  Anagallis minima John H. Thomas 1968-4-6 14280 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC45183  Anaphalis margaritacea Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain, on slope at flower garden adjacent to April Brook. Comment
  CDA10065  Anaphalis margaritacea A. C. Browne 1950-8-12 San Mateo Alpine Creek. 0 Comment
  CAS-BOT-BC391917  Anemone grayi Le Roy Abrams 1902-3-16 2275 San Mateo King's Mountain Comment
  CAS-BOT-BC391916  Anemone grayi W. R. Dudley 1897-4-9 s.n. San Mateo Santa Cruz Peninsula. Pescadero Creek Comment
  POM176875  Anemone grayi W. R. Dudley 1894-3-26 s.n. San Mateo Redwoods beyond King's Mt. House Comment
  UC306529  Angelica tomentosa A. D. E. Elmer July, 1903 4998 San Mateo southern end of Crystal Springs Lake Crystal Springs Lake Comment
  CAS-BOT-BC273190  Anisocarpus madioides John H. Thomas 1961-6-20 9555 San Mateo Portola State Park, near junction of Peters and Pescadero Creeks 152 Comment
  JEPS13142  Anthemis cotula W. L. Jepson 1928-7-11 12939 San Mateo Redwood City 3 Comment
  JROH503  Anthemis cotula John Hunter Thomas 1978-7-14 19263 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the low flow crossing of San Francisquito Cr. Comment
  JROH498  Anthemis cotula John H. Thomas 1963-6-23 10173 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of ridge Comment
  CAS-BOT-BC280644  Anthoxanthum occidentale W. R. Dudley 1903-5-2 s.n. San Mateo Santa Cruz Mountain Peninsula. Moore's Place, Pescadero Creek Comment
  CAS-BOT-BC280648  Anthoxanthum occidentale C. F. B. 1902-1-15 247 San Mateo West side King's Mountain Comment
  CAS-BOT-BC280649  Anthoxanthum occidentale A. D. E. Elmer 1902-3-1 4124 San Mateo King's Mt. Comment
  CAS-BOT-BC454484  Aphanes occidentalis John H. Thomas 1965-4-29 10631 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  JROH3600  Aphanes occidentalis John H. Thomas 1963-4-17 10036 A San Mateo Jasper Ridge Biological Preserve, Stanford University; near the "riders shack" at the Searsville end of the ridge Comment
  JROH3604  Aphanes occidentalis John H. Thomas 1974-4-25 17216 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC454488  Aphanes occidentalis George Oberlander 1950-3-11 448 San Mateo Grassland, Sweeney Ridge, San Francisco Watershed Reserve Comment
  CAS-BOT-BC454489  Aphanes occidentalis J. I. McMurphy 1906-5-8 s.n. San Mateo Crystal Springs Lakes, Santa Cruz Mountain Pennisula Comment
  CAS-BOT-BC454492  Aphanes occidentalis Ned Cahill 1974-4-29 197 San Mateo Serpentine fields bordered by chapparal near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City Comment
  CAS-BOT-BC454493  Aphanes occidentalis Ned Cahill 1975-2-21 406 San Mateo Chapparal near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City Comment
  UC306538  Apiastrum angustifolium A. D. E. Elmer June, 1903 4461 San Mateo southern end of Crystal Springs Lake Crystal Springs Lake Comment
  UC1285700  Aponogeton distachyos Rolf Benseler 1966-4-10 San Mateo 100 yards s of King Drive (formerly Chinese Cemetery Road), e side of Highway No. 5, Skyline Boulevard, northern end of San Mateo County King Drive; e side Highway No. 5, Skyline Boulevard Comment
  CAS-BOT-BC405851  Aquilegia formosa Alice Eastwood 1912-6-10 340 San Mateo Crystal springs Comment
  SEINET12087099  Aquilegia formosa G. C. Kimber, Roush, L. 1918-1 s.n. San Mateo no further locality Comment
  SEINET5721773 Image available Aquilegia formosa Johnny O. Johnson 1974-1 29 San Mateo Bear Gulch Road, 2 miles north of its intersection with State Hwy 84. Comment
  CAS-BOT-BC17316  Arabis blepharophylla Elizabeth McClintock 1967-4-16 s.n. San Mateo San Bruno Mountains. Buckeye Canyon. Comment
  JEPS90202  Arabis blepharophylla Dean W. Taylor 1989-3-30 10187 San Mateo crest of ne ridge of San Bruno Mountain ((ridge separating Guadalupe Valley from Vistacion Valley), Right-of-way of eastern-most set of PG&E high-voltage powerlines crossing mtn); Santa Cruz Mountains, San Bruno Mountain Comment
  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
  UC676755  Arabis blepharophylla Reed C. Rollins 1941-3-22 2950 San Mateo 2 mi se Daly City; San Bruno Hills Comment
  RSA0125507  Arabis blepharophylla Glenn A. Gorelick 1967-2-10 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  CAS-BOT-BC171643  Aralia californica Eric Walther 1919-7-4 s.n. San Mateo Woodside Comment
  RSA112474  Aralia californica Theo C. Zschokke 1903-7-10 s.n. San Mateo Goat Ranch Road, Corte de Madera Cr. Comment
  JROH1917  Arbutus menziesii John H. Thomas 1967-4-20 12711 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1919  Arbutus menziesii John H. Thomas 1974-5-29 17397 San Mateo Jasper Ridge Biological Preserve, Stanford University; near riders' shack Comment
  JROH5562  Arctostaphylos John Rawlings, Toni Corelli 2013-1-29 1110 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail to Hermit's Mine site. 195 Comment
  JROH5920  Arctostaphylos Toni Corelli 2004-4-21 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; along driveway of private lot immediately east of Goya Gate along the Preserve's boundary fence 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
  UCD50392  Arctostaphylos andersonii Robert E. Preston 2001-5-29 1533 San Mateo Ca. 9 mi nnw of Boulder Creek. 377 Comment
  JROH1922  Arctostaphylos canescens subsp. canescens L. R. Abrams 1910-8-14 4990 San Mateo Jasper Ridge, near Stanford University Comment
  CAS-BOT-BC23501  Arctostaphylos crustacea Brandegee 1889-4-1 8 San Mateo Redwood City Comment
  SEINET11989199  Arctostaphylos crustacea E. McClintock, Knight, W.; Knight, I. 1982-1 4646 San Mateo San Pedro County Park, near Pacifica Comment
  CAS-BOT-BC25169  Arctostaphylos crustacea subsp. crinita Roman Gankin 1966-5-17 739 San Mateo ca. 0.4 mile NE of Peak Mountain of Montara Mountain Range 487 Comment
  SBBG83928  Arctostaphylos crustacea subsp. crustacea R. Gankin 1959-2-22 322 San Mateo 2.8 mi from jct with Hwy 5 on King's Mtn Rd Comment
  CAS-BOT-BC24498  Arctostaphylos imbricata Lewis S. Rose 1955-2-23 55002 San Mateo San Bruno Hills. Ridge e. of TV Station. Type Locality. Comment
  HSC7758  Arctostaphylos imbricata L. S. Rose 1964-4-24 64022 San Mateo San Bruno Hills 335 Comment
  SBBG83970  Arctostaphylos montaraensis R. Gankin 1966-5-17 740 b San Mateo Montara Mtn Comment
  UC21804  Arctostaphylos montaraensis J. Burtt Davy 1895-4-20 1049 San Mateo Lake Pilarcitos Comment
  UCD51760  Arctostaphylos montaraensis Walter Knight; Irja Knight and Elizabeth McClintock Date Unknown 4447 San Mateo Pacifica; San Pedro County Park; about 1/2 dozen plants 1/4 mi. east of parking lot. Comment
  CAS-BOT-BC38525  Arctostaphylos montaraensis Walter Knight; Irja Knight; James B. Roof; Gregory Whipple; Al Senenes 1969-9-22 2790 San Mateo 1 mi. w. of Scarper peak jct. enroute Montara Mt. on San Francisco Water Dept. property. 304 Comment
  JEPS88612  Arctostaphylos montaraensis unknown May 1961 San Mateo Pacific Ridge Comment
Read comments
Jan 23 2011
  SEINET11987328  Arctostaphylos montaraensis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4203 San Mateo Strybing Arboretum, San Fran., Golden Gate Park, orig. few yds NE of Pacific Rock on San Bruno Mt Comment
  CAS-BOT-BC39821  Arctostaphylos pacifica Arthur Menzies 1963-3-9 s.n. San Mateo San Bruno Hills - N.E. ridge from road at end of parking lot Comment
  CAS-BOT-BC39822  Arctostaphylos pacifica Walter Knight; Irja Knight 1981-3-1 4049 San Mateo From Tilden Botanic Garden, Berkeley. Originally collected from San Bruno Mountain. Comment
  JEPS26639  Arctostaphylos pacifica James Roof 1961-4-18 San Mateo spur that lies 1/4 mi ne summit; San Bruno Mountain 335 Comment
  CAS-BOT-BC44735  Arctostaphylos regismontana Josephine D. Randall 1908-3-28 s.n. San Mateo Santa Cruz Peninsula - King's Mt. Road Comment
  CAS-BOT-BC44737  Arctostaphylos regismontana E. A. McGregor 1908-3-28 s.n. San Mateo King's Mountain 548 Comment
  POM367226  Arctostaphylos regismontana E. C. Sutliffe 1934-2-2 s.n. San Mateo Kings Mountain. Comment
  POM87727  Arctostaphylos regismontana L. R. Abrams 1902-1-12 2254 San Mateo Kings Mountain. Comment
  RSA119223  Arctostaphylos regismontana John H. Thomas 1954-2-13 3686 San Mateo Along Skyline Highway between Kings Mt. Road and La Honda Road. 609 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
  RSA636749  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24635 San Mateo NW side of Montara Mtn. 150 Comment
  UC1120828  Arctostaphylos regismontana A. E. Wieslander and B. O. Schreiber 1940-3-5 7 San Mateo road from Woodside to King's Mt.; Santa Cruz Quadrangle 457 Comment
  UC1120833  Arctostaphylos regismontana A. E. Wieslander and B. O. Schreiber 1940-3-5 2 San Mateo road from Woodside to King's Mt.; Santa Cruz Quadrangle 243 Comment
  UC311533  Arctostaphylos regismontana A. D. E. Elmer March 1903 4537 San Mateo King's Mountain Comment
  UC549744  Arctostaphylos regismontana Lewis S. Rose 1934-2-10 34026 San Mateo Skyline Blvd 4 mi s Kings Mountain (region of type) Comment
  UC565404  Arctostaphylos regismontana Charles M. Belshaw 1936-1-25 1467 San Mateo Kings Mountain Rd six mi w Woodside; South Coast Range Comment
  JEPS48594  Arctostaphylos tomentosa subsp. crustacea James G. Daly 1934-1 543 San Mateo San Gregorio watershed Santa Cruz Mts. (sw San Mateo Co.) Comment
  POM299443  Arctostaphylos tomentosa subsp. crustacea L. S. Rose 1942-3-30 42007 San Mateo Kings Mountain. 183 Comment
  RSA381043  Arctostaphylos tomentosa subsp. crustacea Roman Gankin 1959-2-22 322 San Mateo 2.8 miles from junction state hwy 5 on King's Mt. Road. Comment
  UC1120104  Arctostaphylos tomentosa subsp. crustacea Beryl Schreiber 1938-10-16 2565 San Mateo King's Mountain Santa Cruz Quadrangle 609 Comment
  UC702542  Arctostaphylos tomentosa subsp. crustacea L. S. Rose 1942-3-30 42007 San Mateo Kings Mountain Kings Mountain (type locality) 600 Comment
  POM285160  Arctostaphylos tomentosa subsp. tomentosiformis Lyman Benson 1929-3-2 986 San Mateo Hill east of Lake Searsville. Comment
  CAS-BOT-BC46836  Arctostaphylos uva-ursi Walter Knight; Irja Knight 1965-2-28 864 San Mateo San Bruno Mt. Up Cable Ravine off Radis Road. Comment
  RSA128346  Arctostaphylos uva-ursi P. H. Raven 1951-2-18 2732 San Mateo Summit ridge of the San Bruno Mountains. A new southern limit! Comment
  SBBG21954  Arctostaphylos uva-ursi R. F. Thorne with P. C. Everett 1963-6-9 32218 San Mateo top of San Bruno Mtn, near the TV Tower 335 Comment
  UCD52147  Arctostaphylos uva-ursi Walter and Irja Knight; Elizabeth McClintock 1982-3-27 4495 San Mateo From Kamchatka Point, San Bruno Mountain, San Mateo County. 320 Comment
  UCD52149  Arctostaphylos uva-ursi Walter and Irja Knight; Elizabeth McClintock 1982-3-27 4494 San Mateo Kamchatka Point, San Bruno Mountain. San Mateo County. 320 Comment
  RSA0077992  Arctostaphylos uva-ursi B. A. Stein 1981-2-22 422 San Mateo San Bruno Mountain, just E of sumit. 396 Comment
  UCR240613  Armeria maritima T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3523 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  POM209881  Armeria maritima subsp. californica D. D. Keck 1934-7-7 2942 San Mateo Pigeon Point. Comment
  RSA94491  Arnica discoidea D. D. Keck 1975-5-11 1775 San Mateo E side of Kings Mtn, on Kings Mtn Road. 351 Comment
  CDA29889  Arrhenatherum elatius J. Eide 2009-7-2 PDR# 1481186 San Mateo Santa Cruz Mountains; San Bruno Mountain, in the vicinity of San Bruno. 0 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
  JROH515  Artemisia californica L. R. Abrams 1902-12-23 3098 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC93638  Artemisia pycnocephala C. B. Wolf 1930-11-5 1062 San Mateo 4 miles south of Pescadero 7 Comment
  CAS-BOT-BC93641  Artemisia pycnocephala John H. Thomas 1961-5-13 9336 San Mateo Coastal sand dunes at Franklin Point Comment
  CHSC56966  Artemisia pycnocephala Steven Triano 1988-5-24 187 San Mateo W of Hwy 1 ca 0.2 mi N of Pescadero Road. 9 Comment
  RSA417371  Artemisia pycnocephala Edith A. Purer 1933-7-27 5387 San Mateo 2 mi. S of Pigeon Pt. Comment
  SD41464  Artemisia pycnocephala Edith A. Purer 1933-7-27 5387 San Mateo Partially stabilized sand dunes 2 miles south of Pigeon Point Comment
  UCR240608  Artemisia pycnocephala T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3528 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  SEINET11853520  Artemisia pycnocephala E. A. Purer 1933-1 5387 San Mateo 2 mi S of Pigeon Point Comment
  UC141855  Asarum caudatum Dr. E. B. Copeland 1903-5-9 3250 San Mateo Mountains beyond Pescadero Creek 304 Comment
Read comments
Oct 16 2021
  SEINET219238  Asclepias fascicularis Cynthia Taylor 1971-6-8 153 San Mateo Corner of Watkins Avenue and Railroad tracks, Atherton. 17 Comment
  UCR121548  Aster chilensis George K. Helmkamp, E. A. Helmkamp 1999-6-28 5009 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  UCR254760  Aster chilensis Peter Rubtzoff 1975-9-11 8376 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  POM261373  Aster chilensis H. C. Cauteloro 1940-9-2 s.n. San Mateo North of Pescadero Comment
  POM57741  Aster chilensis B. Greene 1901-10-20 59 San Mateo Summit of Coast Range Comment
  SEINET946308  Asteraceae C. B. Wolf 1934-1 6240 San Mateo Coastal bluff, 200 yds. South of Pigeon Pt. Lighthouse 15 Comment
  CAS-BOT-BC186761  Astragalus gambelianus Deborah Hichborn 1920-4-19 s.n. San Mateo Woodside Comment
  CAS-BOT-BC186765  Astragalus gambelianus H. A. Dutton 1900-3-25 s.n. San Mateo Woodside Comment
  JROH1992  Astragalus gambelianus John Hunter Thomas 1978-4-20 19072 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC903405  Astragalus gambelianus Lois E. James 1946-4-16 1741 San Mateo High Road off Woodside Road hills back Redwood City; back of Redwood City Comment
  CAS-BOT-BC186569  Astragalus nuttallii var. virgatus C. F. B. 1903-6-30 3358 San Mateo Pillar Point Comment
  SBBG34010  Astragalus nuttallii var. virgatus L. S. Rose 1969-9-20 69112 San Mateo Thornton Beach 24 Comment
  UC1537101  Astragalus nuttallii var. virgatus Gordon H. True Jr. 1936-6-14 511 San Mateo fairly open hillside on Salada Beach Road 1 mi from Skyline Blvd.; on Salada Beach Road 182 Comment
  CAS-BOT-BC177971  Astragalus nuttallii var. virgatus A. A. Heller 1906-6-8 8385 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks in soil. Comment
  SD37525  Astragalus nuttallii var. virgatus Edith A. Purer 1933-8-13 5405 San Mateo Small bottom, Santa Clara Valley, near Baden Station. Comment
  RSA681761  Astragalus oxyphysus Annuschka Deb 1989-4-19 117 A San Mateo YBN Berm near parking lot Comment
  CAS-BOT-BC193095  Astragalus pycnostachyus var. pycnostachyus C. F. Leitholt 1894-7-1 s.n. San Mateo Pescadero Comment
  UC81253  Astragalus pycnostachyus var. pycnostachyus C. F. Baker 1902-10-1 1744 San Mateo Pillar Point Comment
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Feb 2 2012
  RSA785883  Athyrium filix-femina subsp. cyclosorum Peter Rubtzoff 1977-11-24 9144 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  UC136114  Athysanus pusillus C. F. Baker 1902-4-6 456 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC170571  Atriplex J. H. Thomas 1958-10-21 7486 San Mateo Near intersection of Bayshore highway and Main Street, Redwood City. Comment
  CAS-BOT-BC172666  Atriplex lentiformis C. D. Duncan 1922-9-1 s.n. San Mateo Boncill Estate, Atherton Comment
  JEPS118232  Atriplex prostrata Dean W. Taylor with Alison Colwell 2005-9-26 19492 San Mateo 1 mile south along the coast from Franklin Point, Ano Nuevo State Reserve 0 Comment
  SEINET4136305  Atriplex prostrata Howard C. Stutz 1995-10-3 9833 San Mateo Half Moon Bay.; 0 Comment
  SEINET5727745 Image available Atriplex semibaccata Delzie Demaree 1932-1 10529 San Mateo Belmont; Belmont Comment
  RSA254228  Avena barbata Robert A. Norris 1975-3-21 2289 San Mateo Hilly grassland near Crocker Ave., San Bruno Mts. Comment
  CAS-BOT-BC145958  Avena fatua J. H. Thomas 1955-4-15 4920 B San Mateo Along Bayshore Highway, east of San Carlos. Comment
  JROH5754  Avena fatua J. C. Gaither 1982-4-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Sand Hill Road Gate, old motorcycle racetrack. Comment
  POM308447  Baccharis douglasii Henry J. Ramsey, Henry J. Ramsey 1939-10-7 3060 San Mateo San Mateo Comment
  RSA418224  Baccharis douglasii Edith A. Purer 1932-7-18 16266 San Mateo Near Pigeon Point Comment
  JROH545  Baccharis glutinosa John Hunter Thomas 1992-7-24 25385 San Mateo Jasper Ridge Biological Preserve, Stanford University; along causeway Comment
  UC893653  Baccharis glutinosa Roxana Stinchfield 1915-10-14 262 San Mateo Santa Cruz Mountain Peninsula, San Francisquito Creek Comment
  CAS-BOT-BC99505  Baccharis pilularis Elizabeth McClintock 1965-3-28 s.n. San Mateo North Power Line Ridge, San Bruno Mountain 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
  POM56595  Baccharis pilularis C. F. Baker 1902-10-1 1740 San Mateo Pillar Point. Comment
  POM87046  Baccharis pilularis F. W. Peirson 1925-9-13 6425 San Mateo Rockaway beach. Comment
  RSA51371  Baccharis pilularis L. S. Rose 1949-9-20 49181 San Mateo Sharp Park Comment
  JEPS121482  Baccharis pilularis subsp. consanguinea Adam C. Schneider with C. Matt Guilliams 2013-2-2 6 San Mateo Crystal Springs Reservoir Comment
  SEINET3387422 Image available Baeria hirsutula Lewis S. Rose 1933-5-3 33141 San Mateo Montara, Ocean Bluffs Comment
  CAS-BOT-BC16625  Barbarea orthoceras Fred Hemphill 1973-3-17 712 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC16627  Barbarea orthoceras Fred Hemphill 1973-4-22 736 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  SD99578  Barbarea orthoceras Darley F. Howe 1968-4-14 San Mateo San Francisco Game Reserve near San Bruno. Comment
  UCR121576  Bellardia trixago George K. Helmkamp, E. A. Helmkamp 1999-6-28 5008 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  UCSB42899  Bellardia trixago deGrange, J. 1982-5-15 San Mateo Ten yards west of junction of Hallmark and Comstock Streets; Bellmont; Fifty yards east of Crystal Springs Reservoir 243 Comment
  CAS-BOT-BC100194  Bellis perennis John H. Thomas 1974-5-7 17326 San Mateo San Bruno Mountain. Along Guadalupe Parkway opposite school Comment
  CAS-BOT-BC75880  Berberis pinnata George Oberlander 1949-4-17 70 San Mateo San Francisco Watershed Reserve. Near Pilarcitos Lake. 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
  UC306615  Berberis pinnata A. D. E. Elmer April, 1903 4820 San Mateo San Bruno Hills Comment
  JROH1320  Berberis pinnata subsp. pinnata H. B. Hannibal 1910-10-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Sandstone Cave Comment
  UCSB17425  Betula occidentalis Schulte, John 1963-4-14 San Mateo Jasper Ridge, 3 mi. SW of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC66298  Blechnum spicant L. R. Abrams 1912-4-1 5000 San Mateo Butano Canyon 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
  POM209847  Boisduvalia densiflora D. D. Keck 1934-7-7 2944 San Mateo Pigeon Point. Comment
  SEINET10927832  Bolboschoenus maritimus Lewis S. Rose 1935-8-13 Rose 35565 San Mateo Salada. Salt marsh. 3 Comment
  CAS-BOT-BC95342  Bowlesia incana Walter Knight; Irja Knight 1965-5-9 1099 San Mateo Devil's Arroyo, San Bruno Mountain 274 Comment
  CAS-BOT-BC389730  Boykinia occidentalis J. Lovelle 1973-7-8 9 San Mateo Menlow [Menlo] Pk. Comment
  CAS-BOT-BC420226  Boykinia occidentalis H. L. Mason 1921-7-14 s.n. San Mateo Pescadero Creek on the La Honda-Pescadero Road Comment
  CAS-BOT-BC420227  Boykinia occidentalis W. R. Dudley 1895-6-6 s.n. San Mateo Banks of Pescadero Creek above Iverson's Comment
  JROH5713  Brachypodium distachyon John Rawlings 2015-4-26 1442 San Mateo Jasper Ridge Biological Preserve, Stanford University; south side of Field Station 119 Comment
  CDA36483  Brachypodium sylvaticum Ellen Gartside 2011-7-18 s.n. San Mateo Woodside; on deer trail north east from trail below Old La Honda Road. 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
  UC2049864  Brassica rapa H. W. Johansen 1955-4-23 82 a San Mateo Crystal Springs road, 2 miles W of San Mateo Comment
  JROH4877  Briza maxima John Hunter Thomas 1992-5-5 25207 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near picnic area and vicinity Comment
  CAS-BOT-BC145336  Briza minor David D. Keck 1932-4-18 1433 San Mateo Burlingame. On the shore of San Francisco Bay. 2 Comment
  CAS-BOT-BC145337  Briza minor Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain. Above Hillcrest Boulevard, South San Francisco. Comment
  CAS-BOT-BC145342  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo Near San Carlos. Comment
  CDA1781  Briza minor A. A. Beetle 1941-4-2 1738 San Mateo Near San Carlos Comment
  JROH4879  Briza minor John H. Thomas 1963-5-15 10090 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA591526  Briza minor D. D. Keck 1932-4-18 1433 San Mateo Burlingame, on the shore of San Francisco Bay. 2 Comment
  SBBG459  Briza minor A. A. Beetle 1941-4-20 1739 San Mateo near San Carlos Comment
  UCD57381  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo Near San Carlos. Comment
  UCR143328  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo Near San Carlos 30 Comment
  UCSB17659  Brodiaea coronaria Schulte, John 1963-4-28 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  JROH4581  Brodiaea elegans subsp. elegans John H. Thomas 1973-6-10 16808 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC75263  Brodiaea terrestris subsp. terrestris C. F. Baker 1902-4-6 462 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC483179  Brodiaea terrestris subsp. terrestris W. R. Dudley 1894-4-21 s.n. San Mateo Near dam, San Mateo, Santa Cruz Peninsula Comment
  CAS-BOT-BC483181  Brodiaea terrestris subsp. terrestris Le Roy Abrams 1902-5-4 2427 San Mateo Near Woodside Comment
  UCSC007722  Bromus carinatus Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC148984  Bromus carinatus var. carinatus Ira L. Wiggins 1928-4-22 2946 San Mateo Moss Beach. Comment
  CAS-BOT-BC148988  Bromus carinatus var. carinatus Margaret A. Barry 1937-5-15 99 San Mateo Coal Mine RIdge. Comment
  JROH4901  Bromus carinatus var. carinatus John Rawlings 2013-4-23 1143 San Mateo Jasper Ridge Biological Preserve, Stanford University. Shaded, northwest-facing slope of small drainage about 100 meters upstream from Trail 11 at the upper footbridge. 133 Comment
  JROH5634  Bromus carinatus var. carinatus John Rawlings 2004-7-11 1002 San Mateo Jasper Ridge Biological Preserve, Stanford University. Hermit's cabin site. 180 Comment
  CAS-BOT-BC156178  Bromus catharticus Elizabeth McClintock; Paul Reeberg 1989-8-19 s.n. San Mateo San Bruno Mountains. PG&E Marsh. 22 Comment
  CAS-BOT-BC155724  Bromus diandrus Paul Arnaud 1941-4-17 s.n. San Mateo Redwood City, Jefferson Avenue. Comment
  CDA34508  Bromus diandrus D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .177 San Mateo Swanton Rd just S of Ano Nuevo above Weddell Creek. Comment
  CAS-BOT-BC155132  Bromus hordeaceus H. A. Dutton 1900-4-17 s.n. San Mateo Santa Cruz Peninsula. Just east of Jasper on south side of Woodside. Comment
  CAS-BOT-BC155133  Bromus hordeaceus W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of Sneath's Ranch Hill near Millbrae. Comment
  UCD58780  Bromus hordeaceus L. Whitney 1935-3-20 s.n. San Mateo Bayshore Highway--10 miles south of Cliff House, San Francisco. Comment
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Nov 12 2011
  UCD59622  Bromus rubens P. Rodriguez-Rojo 1997-4-12 s.n. San Mateo Edgewood County Park. 200 Comment
  JROH5650  Bromus vulgaris John Rawlings 2014-5-28 1245 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry bed of San Francisquito Creek at at the Dennis Martin site. 71 Comment
  CAS-BOT-BC233710  Buddleja davidii John H. Thomas 1968-12-18 14873 San Mateo About 0.9 miles inland from the coast along road toward Pescadero Comment
  POM144327  Cakile edentula C. F. Baker 1902-10-1 1746 San Mateo Pillar Point. Comment
  CAS-BOT-BC36869  Cakile edentula var. edentula Helen D. Geis 1901-10-26 s.n. San Mateo Half Moon Bay. Comment
  CAS-BOT-BC36871  Cakile edentula var. edentula W. R. Dudley 1908-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Laguna Salada. Comment
  UC718801  Cakile maritima Reed C. Rollins 1942-11-4 3032 San Mateo about 5 mi n of Hal Moon Bay (Miramar Beach); Miramar Beach Comment
  CAS-BOT-BC36959  Cakile maritima var. maritima Elsie Zeile 1946-7-1 s.n. San Mateo Montara. Comment
  CAS-BOT-BC36954  Cakile maritima var. maritima Reed Clark Rollins 1942-11-4 3032 San Mateo Miramar Beach, about 5 miles north of Half Moon Bay. Comment
  CAS-BOT-BC36963  Cakile maritima var. maritima David D. Keck 1940-5-19 5045 San Mateo Half Moon Bay. Just north of town. Comment
  POM199081  Calamagrostis A. D. E. Elmer 1903-06 4693 San Mateo San Pedro Comment
  SEINET10521069  Calamagrostis nutkaensis Adolph D. E. Elmer Elmer 5040 San Mateo San Pedro, Comment
  CAS-BOT-BC438531  Calandrinia ciliata H. A. Dutton 1900-2-11 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  UC635366  Calandrinia ciliata Herbert L. Mason 1927-4-23 3691 San Mateo roadside between La Honda and Pescadero Creek Comment
  CAS-BOT-BC438535  Calandrinia ciliata George Oberlander 1950-4-2 630 San Mateo San Francisco Watershed Reserve. On Sweeney Ridge Comment
  JROH1632  Callitriche marginata John H. Thomas 1968-3-17 14193 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1641  Callitriche marginata John H. Thomas 1974-4-4 17079 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD123519  Callitriche trochlearis W. R. Dudley 1904-4-23 s.n. San Mateo Santa Cruz Mountain Peninsula; Crow foot pond on Alpine Road, opposite the Fitzpatrick Place. Comment
  JROH4596  Calochortus albus John H. Thomas 1963-5-12 10085 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4607  Calochortus albus John H. Thomas 1977-4-21 18539 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD656  Calochortus albus lysses S. Grant IV Jun 1925 San Mateo Near La Honda. Comment
  CAS-BOT-BC492220  Calochortus albus Otto M. Sokol 1953-5-29 117 San Mateo Bear Creek Road Comment
  RSA14949  Calochortus albus Lewis S. Rose 1935-6-11 35214 San Mateo 9 mi W of Stanford University. Comment
  JROH4633  Calochortus luteus John H. Thomas 1973-6-10 16817 San Mateo Jasper Ridge Biological Preserve, Stanford University 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-BC491984  Calochortus luteus Henry J. Thompson 1951-6-10 1501 San Mateo Westridge Hills, just west of Los Trancos Creek, 5 miles west of Palo Alto 121 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
  RSA18366  Calochortus tolmiei Carl B. Wolf 1929-5-22 3722 San Mateo Near east base of La Honda grade Comment
  CAS-BOT-BC270670  Calycadenia multiglandulosa L. S. Rose 1956-7-2 56120 San Mateo Emerald Lake, hills W of Redwood City 182 Comment
  JEPS20302  Calycadenia multiglandulosa Lewis S. Rose 1956-7-9 56120 San Mateo hills w of, Emerald Lake Redwood City; Emerald Lake 182 Comment
  JROH562  Calycadenia multiglandulosa John H. Thomas 1967-11-5 14128 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC224655  Calystegia purpurata subsp. purpurata Theo. C. Zschokke 1903-7-10 s.n. San Mateo Santa Cruz Mountain Peninsula. Goat Ranch Road, Corte de [Corte] Madera Cr. Comment
  CAS-BOT-BC436442  Calystegia subacaulis Peter H. Raven 1950-6-3 2234 San Mateo Millbrae Ave. 91 Comment
  CAS-BOT-BC436443  Calystegia subacaulis John H. Thomas 1969-4-24 14913 San Mateo Near Canada College, Redwood City, near Farm Hill Drive Comment
  CAS-BOT-BC436451  Calystegia subacaulis Paul Arnaud 1941-4-28 s.n. San Mateo In back of San Carlos Comment
  SJSU8763  Calystegia subacaulis B. L. Ledwith 1960-4-13 San Mateo San Francisco Game Refuge 17 mi S of San Francisco Comment
  JROH1846  Calystegia subacaulis subsp. subacaulis John H. Thomas 1968-4-19 14300 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  NY679557  Camissonia cheiranthifolia subsp. cheiranthifolia A. D. E. Elmer 03 1903 4942 San Mateo San Pedro. Comment
  POM32530  Camissonia cheiranthifolia subsp. cheiranthifolia A. D. E. Elmer 1903-07 4942 San Mateo San Pedro. Comment
  HSC16511  Camissonia ovata P. A. Murphy 1965-4-12 33 San Mateo 2 mi. from Half Moon Bay on the Higgin's Canyon Rd. Comment
  CAS-BOT-BC160325  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Daniel Cohen 1953-5-9 97 San Mateo Beach at Pescadero Comment
  UC306527  Camissoniopsis micrantha A. D. E. Elmer May 1903 4813 San Mateo San Pedro Comment
  UC306754  Campanula prenanthoides A. D. E. Elmer June, 1903 4283 San Mateo Pescadero Creek 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
  SEINET10905906  Campanula prenanthoides Wicksten 1971-7-7 WICKSTEN 155 San Mateo HUDDART PARK, ROAD CUT ALONG RD TO FAMILY CAMPGROUND Comment
  SEINET3406227 Image available Campanula prenanthoides Lewis S. Rose 1933-7-25 33311 San Mateo Kings Mountain Comment
  CAS-BOT-BC37161  Capsella bursa-pastoris David D. Keck 1932-2-16 1378 San Mateo Portola. Comment
  CAS-BOT-BC37162  Capsella bursa-pastoris David D. Keck 1932-2-16 1378 San Mateo Portola. Comment
  SBBG51277  Capsella bursa-pastoris J. Doty 1969-3-24 582 San Mateo N side of Embarcadero Rd, just W of W boundary of Byxbee Marshlands Wildlife Preserve, Menlo Park 1 Comment
  CAS-BOT-BC37658  Cardamine californica W. R. Dudley 1894-3-1 s.n. San Mateo Santa Cruz Peninsula. Near South San Francisco. Comment
  CAS-BOT-BC37660  Cardamine californica W. R. Dudley 1896-2-16 s.n. San Mateo Santa Cruz Peninsula. Devil's Canyon, near Black Mountain. Comment
  CAS-BOT-BC37675  Cardamine californica Elizabeth McClintock; Arthur Menzies 1963-2-16 s.n. San Mateo San Bruno Mountains. Upper slope of mountain below radio station. Comment
  CAS-BOT-BC37677  Cardamine californica A. D. E. Elmer 1903-4-1 4468 San Mateo Portola. Comment
  UCD114192  Cardamine californica Janet Jacob 1951-4-1 54 San Mateo 7 miles eeast of Pescadero. Comment
  JROH5654  Cardamine hirsuta John Rawlings 2014-4-3 1258 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11 143 Comment
  JROH5678  Cardamine hirsuta John Rawlings 2015-3-3 1313 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 8 125 Comment
  UCSB18657  Cardamine oligosperma Schulte, John 1963-4-9 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC37988  Cardamine oligosperma George Oberlander 1949-4-30 123 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon. Comment
  SJSU15404  Cardionema ramosissimum Toni Corelli 2010-4-9 669 San Mateo Rockaway Headlands, southwest of Rockaway Beach, Pacifica, CA 36 Comment
  JROH579  Carduus pycnocephalus subsp. pycnocephalus John Hunter Thomas 1980-5-8 19952 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC17852  Carex amplifolia George Oberlander 1950-5-21 958 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon. Comment
  JROH4316  Carex barbarae John Hunter Thomas 1986-5-17 24049 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA220059  Carex bolanderi Peter Rubtzoff 1953-5-14 1339 San Mateo Pilarcitos Creek Canyon, 1 to 2 miles downstream from Pilarcitos Lake. Comment
  CAS-BOT-BC18921  Carex densa Alice Eastwood; John Thomas Howell 1937-5-7 4327 San Mateo Visatacion Valley. Comment
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Oct 30 2021
  CAS-BOT-BC18922  Carex densa Alice Eastwood; John Thomas Howell 1937-5-7 4328 San Mateo Visatacion Valley. 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-BC18940  Carex densa W. R. Dudley 1910-5-26 s.n. San Mateo Santa Cruz Mountain Peninsula. Coal Mine Ridge, near Black Mountain. Comment
  SEINET3128102  Carex densa Unknown 1902-5-11 2444 San Mateo Crystal S? Comment
  UCD140274  Carex densa Lewis S. Rose 1937-4-30 37243 San Mateo Brishane. 6 Comment
  RSA304147  Carex dudleyi Alice Eastwood, John Thomas Howell 1937-5-7 4327 San Mateo Visatacion Valley. Comment
  POM193755  Carex gracilior W. R. Dudley 1900-5-17 s.n. San Mateo Seal Creek? Santa Cruz Mountain Peninsula. Comment
  CAS-BOT-BC21810  Carex harfordii John Thomas Howell 1938-5-1 13782 San Mateo Near South San Francisco. Comment
  CAS-BOT-BC210008  Carex harfordii Peter Rubtzoff; Barbara Duetsch; James Roof 1980-5-3 9437 San Mateo The Edward P. Lee Memorial Site, at the bottom of canyon, below the Nine Fern Rock. Comment
  UC803889  Carex hendersonii G. L. Stebbins Jr. 1949-6-5 3983 San Mateo on Skyline Blvd. w Palo Alto (summit of Kings Mtn.); Kings Mtn. Comment
  JROH5599  Carex nudata John Rawlings 2013-4-30 1180 San Mateo Jasper Ridge Biological Preserve, Stanford University. Old horse trail crossing of San Francisquito Creek near Boething Nursery site. (Leave Trail 2 extension at metal post SE of last redwoods). 66 Comment
  CAS-BOT-BC119343  Carex obnupta Walter Knight; Irja Knight 1963-10-7 323 San Mateo Cow Trough Ravine. San Bruno Mt. Comment
  JEPS23935  Carex serratodens Le Roy Abrams 1902-5-4 8019 San Mateo Woodside Comment
  CAS-BOT-BC117649  Carex serratodens W. R. Dudley 1896-4-4 s.n. San Mateo Near Summit Springs, King's Mt. Comment
  SEINET7547018  Carex serratodens C. F. Baker 1902-1 811 San Mateo Crystal Springs Lake Comment
  SEINET13715399  Carex subbracteata D. W. Taylor 2008-4-16 20180 San Mateo Half Moon Bay, bluff at the far W end of Redondo Beach Drive. 15 Comment
  UC836144  Carex subbracteata John Thomas Howell 1938-5-1 13778 San Mateo near South San Francisco Comment
  UCR280167  Carex subbracteata Peter Rubtzoff 1978-5-18 9172 San Mateo San Francisco Bay Region, San Bruno Mountains, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, westernmost part of the area 220 Comment
  CAS-BOT-BC210004  Carex subbracteata Peter Rubtzoff 1976-6-30 8707 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, westernmost part of the area. Comment
  SEINET6192755 Image available Carex subbracteata J. T. Howell 1938-5-1 13782 San Mateo near South San Francisco Comment
  CAS-BOT-BC116833  Carex subbracteata var. subbracteata Roxana S. Ferris 1921-5-29 5197 San Mateo Roadside ditch near Arroyo de los Frijoles. Comment
  CAS-BOT-BC116767  Carex subfusca Roxana S. Ferris 1921-5-29 2917 San Mateo Roadside ditch near Arroyo de los Frijoles. Comment
  RSA119340  Carex tumulicola S. S. Tillett, I. Sternback 1956-6-25 543 San Mateo On Middleton property S of road to Portola State Park, just before entrance; in secondary redwood forest. 396 Comment
  CDA20504  Carthamus creticus J. Beall 2004-8-6 PDR 1329641 San Mateo San Francisco Bay Area; at 60 Langley Hill Rd in La Honda. 0 Comment
  JEPS88831  Castilleja T. I. and F. M. Chuang 1991-7-1 7850 San Mateo 0.8 mi n San Gregorio Beach Comment
  CAS-BOT-BC249185  Castilleja affinis James McMurphy 1907-5-19 s.n. San Mateo Coal Mine Ridge Comment
  POM15449  Castilleja affinis C. F. Baker 1902-4-6 464 San Mateo Crystal Springs Lake. Comment
  RSA296378  Castilleja affinis R. C. Bacigalupi, G. Thomas Robbins 1954-6-18 4552 San Mateo Along road to Portola State Park, only 0.25 mile below its junction with the Alpine Road. Comment
  UCSC000665  Castilleja affinis H. S. Yates 1935-3-2 5010 San Mateo 0.5 mile S.E. of Pigeon Pt. Pigeon Pt - Santa Cruz 30 Comment
  JEPS15585  Castilleja affinis subsp. affinis G. Thomas Robbins 1956-8-18 3741 San Mateo immediately n mouth of Butano Creek (nw of Pescadero) Comment
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Feb 28 2011
  JEPS60420  Castilleja affinis subsp. affinis T. I. Chuang and F. M. Chuang 1969-6-21 6661 San Mateo about 2 mi s Half Moon Bay road junction with Skyline Boulevard Comment
  JEPS86227  Castilleja affinis subsp. affinis L. R. Heckard 1970-5-5 2452 San Mateo n side San Bruno Mountain (n spur) 60 Comment
  JROH3932  Castilleja affinis subsp. affinis D. D. Davis 1903-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  JROH3941  Castilleja affinis subsp. affinis John H. Thomas 1969-6-4 15109 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3948  Castilleja affinis subsp. affinis John Hunter Thomas 1981-5-25 20644 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3952  Castilleja affinis subsp. affinis John Hunter Thomas 1986-4-18 23959 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR139351  Castilleja ambigua David D. Keck 1932-4-29 1453 San Mateo San Francisco Bay Region, Burlingame-San Mateo city limits, Bayshore Highway 3 Comment
  JROH3973  Castilleja densiflora subsp. densiflora Robert Robertson 1954-4-23 93 San Mateo Jasper Ridge Biological Preserve, Stanford University 170 Comment
  JROH3975  Castilleja densiflora subsp. densiflora John H. Thomas 1957-4-16 6659 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  UCD122396  Castilleja exserta June McCaskill 1954-5-8 299 San Mateo Highway 5, ca. 2 miles northeast of junction with Halfmoon Bay Road. Comment
  SBBG54568  Castilleja exserta F. W. Pennell, D. D. Keck 1940-5-15 25418 San Mateo E of upper Crystal Springs, SW of San Mateo Comment
  RSA294162  Castilleja franciscana Robert A. Norris, John L. Inase, Allen Nakagawa 1981-7-25 4228 San Mateo Along footpath 70 ft above a marshy lagoon border, N of mouth of Pescadero Creek, Pescadero State Beach. Comment
  CAS-BOT-BC243826  Castilleja latifolia Katharine Brandegee 1917-7-29 s.n. San Mateo Tunitas Station, Ocean Shore R.R. Comment
  CAS-BOT-BC243827  Castilleja latifolia David D. Keck 1931-10-5 1294 San Mateo Four miles northeast of Half Moon Bay, on west side of Cahill Ridge, near headwaters of Pilarcitos Creek 150 Comment
  SD38276  Castilleja latifolia Edith A. Purer 1933-7-27 5355 San Mateo High stabilized sand dunes, Pigeon Point Comment
  JROH3996  Castilleja rubicundula subsp. lithospermoides John H. Thomas 1969-5-28 15092 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4001  Castilleja rubicundula subsp. lithospermoides John H. Thomas 1978-5-12 19199 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4008  Castilleja rubicundula subsp. lithospermoides John Hunter Thomas 1986-5-8 24024 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1012134  Castilleja rubicundula subsp. lithospermoides F. W. Pennell and D. D. Keck 1940-5-15 25413 San Mateo above Redwood City (Emerald Lake); Emerald Lake 45 Comment
  UC306597  Castilleja rubicundula subsp. lithospermoides A. D. E. Elmer Jun 1903 4420 San Mateo Crystal Springs Lake Comment
  JEPS103891  Castilleja subinclusa subsp. franciscana T. I. Chuang and F. M. Chuang 1991-7-3 7859 San Mateo 0.8 mile SW from junction of Interstate 280 and rt. 92 on rt. 92 Comment
  JEPS6917  Castilleja subinclusa subsp. franciscana Rimo Bacigalupi with J. R. Sweeney 1954-8-3 4740 San Mateo lower slopes Tunitas Canyon (about 2 mi above and e of junction of road ascending canyon with the old coast road) 167 Comment
  JEPS6922  Castilleja subinclusa subsp. franciscana Rimo Bacigalupi with G. Thomas Robbins 1954-6-18 4554 San Mateo between La Honda Creek and Pescadero Creek (summit of divide, on the road from La Honda and San Mateo County Memorial Redwood Park) 304 Comment
  SFV8662  Castilleja subinclusa subsp. franciscana C. N. Rivera 1969-5-24 18 San Mateo Belmont. On Skyline Blvd. about 1 mile south of intersection with State Highway 35. Comment
  SJSU11465  Castilleja subinclusa subsp. franciscana A. J. Hutchko 1962-5-20 San Mateo foot of Grove St, Half Moon Bay Comment
  JEPS47423  Castilleja wightii L. R. Heckard 1964-7-15 1421 San Mateo 0.5 miles east of state highway 1, along Lobitos Creek cut-off to Tunitas Canyon Road. 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
  JEPS34453  Castilleja wightii L. R. Heckard 1963-7-18 1341 San Mateo 2.7 mi s Calif. Hwy. 1 road junction with Pescadero road (along Calif Hwy. 1); Bean Hollow Beach County Park (Arroyo de los Frijoles) Comment
  JEPS60427  Castilleja wightii T. I. Chuang and F. M. Chuang 1969-6-22 6667 San Mateo 2.4 mi n Highway 1 junction with Highway 84 at San Gregorio (along Highway 1) Comment
  RSA184850  Castilleja wightii L. S. Rose 1965-4-22 65026 San Mateo San Bruno Mountain, south of parking lot 366 Comment
  RSA523428  Castilleja wightii L. R. Heckard, R. C. Bacigalupi 1963-7-2 1328 San Mateo Near home of John gay. Slopes above S. Fk. of San Pedro Creek. SE of town of San Pedro Valley. 152 Comment
  SBBG100089  Castilleja wightii R. Bacigalupi 1954-6-18 4553 San Mateo Alpine Rd, 0.25 mi below and W of its jct with rd to Portola State Park 426 Comment
  CAS-BOT-BC48304  Ceanothus cuneatus George Oberlander 1950-3-11 499 San Mateo West Sawyer Ridge Comment
  CAS-BOT-BC48309  Ceanothus cuneatus J. H. Thomas 1949-4-1 208 San Mateo west of Redwood City Comment
  POM136316  Ceanothus cuneatus A. D. E. Elmer 1903-03 4578 San Mateo Portola Comment
  RSA15267  Ceanothus cuneatus Carl B. Wolf 1927-3-2 231 San Mateo Above Searsville Lake Comment
  CAS-BOT-BC51596  Ceanothus oliganthus var. sorediatus H. A. Borthwick 1920-4-21 74 San Mateo Strawberry Bend, Corte Madera Cr. Comment
  CAS-BOT-BC51243  Ceanothus papillosus J. I. McMurphy 1906-5-20 13 San Mateo Santa Cruz Peninsula - King's Mt. Santa Cruz Mts. 457 Comment
  CAS-BOT-BC51851  Ceanothus papillosus W. R. Dudley 1902-5-17 s.n. San Mateo Kings Mountain Road Comment
  RSA77705  Ceanothus papillosus D. D. Keck 1932-5-11 1774 San Mateo E side of Kings Mtn, on Kings Mtn road. 503 Comment
  UC79825  Ceanothus papillosus var. papillosus C. F. Baker 1902-5-10 803 San Mateo Kings Mountain Comment
  CAS-BOT-BC52298  Ceanothus thyrsiflorus Miss O. Boring 1897-8-25 s.n. San Mateo Near Kings Mt. House, Kings Mountain Comment
  CAS-BOT-BC52300  Ceanothus thyrsiflorus W. R. Dudley 1900-4-15 s.n. San Mateo Above Crystal Springs and Half Moon Bay road Comment
  POM136452  Ceanothus thyrsiflorus Stewart H. Burnham 1894-4-21 1586 San Mateo [Unspecified] Comment
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Aug 11 2010
  RSA172196  Ceanothus thyrsiflorus Robert F. Thorne, Percy C. Everett 1963-6-9 32241 San Mateo On top of San Bruno Mountain on Kamchatka Point near the TV tower. 335 Comment
  UC1071406  Ceanothus thyrsiflorus G. E. Sindel 1935-8-13 327 San Mateo San Gregoria Creek 91 Comment
  UCR104956  Ceanothus thyrsiflorus Tom Paradise 1993-5-3 12 San Mateo Woodside. Purisima Creek Redwoods Open Space Preserve. Skyline Boulevard at Tunitas Creek Road 631 Comment
  JROH586  Centaurea calcitrapa John H. Thomas 1970-7-5 15671 San Mateo Jasper Ridge Biological Preserve, Stanford University; by bridge Comment
  JROH588  Centaurea calcitrapa D. E. Breedlove 1971-5-11 19335 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Pinon Road along fence Comment
  JROH595  Centaurea calcitrapa John Hunter Thomas 1991-11-21 25108 San Mateo Jasper Ridge Biological Preserve, Stanford University; SLAC corridor Comment
  RSA444732  Centaurea calcitrapa Lyman Benson 1934-7-29 6111 San Mateo Crystal Springs Lake; Mt. Range: Santa Cruz; Watershed: S. F. Bay. 152 Comment
  JROH593  Centaurea calcitrapa John Hunter Thomas 1988-10-17 24602 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD23437  Centaurea cyanus Alan T. Whittemore 1976-5-31 s.n. San Mateo Pescadero Road. About 2 miles east of Pescadero. Comment
  RSA176865  Centaurea melitensis John H. Thomas 1963-7-19 10199 San Mateo Ano Nuevo Island, about 0.5 mile off shore and about 20 mi. NW of Santa Cruz. Comment
  CAS-BOT-BC277122  Centaurea melitensis A. D. E. Elmer 1903-6-1 4281 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC277123  Centaurea melitensis A. D. E. Elmer 1903-6-1 4281 San Mateo Crystal Springs Lake Comment
  JROH607  Centaurea solstitialis John Hunter Thomas 1982-6-7 21027 San Mateo Jasper Ridge Biological Preserve, Stanford University; old sandy beach Comment
  CAS-BOT-BC277229  Centaurea solstitialis Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  CAS-BOT-BC277231  Centaurea solstitialis Ned Cahill 1974-7-14 351 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  POM287523  Centaurium venustum Lyman Benson 1930-4-17 2068 San Mateo Stanford University. 122 Comment
  CAS-BOT-BC279326  Centromadia pungens subsp. pungens Lewis S. Rose 1965-9-20 65106 San Mateo Burlingame, Trousdale Dr. & California Dr. 9 Comment
  CAS-BOT-BC279327  Centromadia pungens subsp. pungens Roxana Stinchfield 1915-9-19 250 San Mateo Santa Cruz Mountain Peninsula. Fields near Salt Marshes, Palo Alto Comment
  JEPS44407  Centromadia pungens subsp. pungens Lewis S. Rose 1965-9-20 65106 San Mateo Trousdale Dr. and California Dr.; Burlingame 9 Comment
  SBBG32413  Centromadia pungens subsp. pungens L. S. Rose 1965-9-20 San Mateo Burlingame, Trousdale Dr and California Drive 9 Comment
  CAS-BOT-BC384957  Cerastium arvense David D. Keck 1932-3-27 1410 San Mateo Stanford University; near the quarry on Matadero Creek Comment
  CAS-BOT-BC388388  Cerastium glomeratum A. D. E. Elmer 1903-4-1 4473 San Mateo San Bruno Hills Comment
  JROH1688  Cerastium glomeratum John H. Thomas 1957-4-16 6649 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1696  Cerastium glomeratum John Hunter Thomas 1983-4-5 21328 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  UC311136  Cerastium glomeratum A. D. E. Elmer April, 1903 4473 San Mateo San Bruno Hills Comment
  CAS-BOT-BC388392  Cerastium glomeratum George Oberlander 1950-4-20 920 San Mateo San Francisco Watershed Reserve. Top of Cahill Ridge Comment
  RSA112373  Cercocarpus betuloides James I. McMurphy 1906-4-4 18 San Mateo Los Francos Creek, Santa Cruz Mts Comment
  RSA15269  Cercocarpus betuloides Carl B. Wolf 1928-3-2 233 San Mateo On hillside above Searsville Lake, Comment
  JROH3617  Cercocarpus betuloides var. betuloides L. R. Abrams 1916-3-25 5573 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3619  Cercocarpus betuloides var. betuloides H. L. Dale 1927-5-30 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  JROH3622  Cercocarpus betuloides var. betuloides John H. Thomas 1961-6-14 9541 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET11248322 Image available Cercocarpus montanus M. E. Springer 1946-9-1 725 San Mateo Near Searsville Lake Comment
  CHSC263  Chamaemelum nobile J. Turner 1930-5-2 San Mateo Moss Beach. Comment
  JROH1947  Chamaesyce maculata John Hunter Thomas 1990-7-28 24939 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176411  Chenopodium ambrosioides var. ambrosioides John H. Thomas 1964-10-2 10514 a San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Edge of Searsville Lake near Bridge. Comment
  JROH1821  Chenopodium californicum Richard L. Garber 1971-5-11 3 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC497723  Chlorogalum pomeridianum Fred Hemphill 1973-5-14 818 San Mateo San Carlos, Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC497722  Chlorogalum pomeridianum Cherie Wetzel 1969-6-20 868 San Mateo Serpentine near Canada College, Redwood City, just off of Farm Hill Blvd Comment
  IRVC9050  Chlorogalum pomeridianum P. W. Rundel 1963-7-7 1144 San Mateo San Francisco Bay drainage area; Kings Mtn Road; woodside. Santa Cruz Mountains 305 Comment
  CAS-BOT-BC246318  Chloropyron maritimum subsp. palustre L. R. Abrams 1914-7-16 5124 San Mateo Cooley's Landing on San Francisco Bay Comment
  CDA19922  Chondrilla juncea J. Beall 2002-6-26 PDR P 120157 San Mateo San Francisco Bay Area; Atherton Caltrain Station on Fair Oak Ln. 0 Comment
  SEINET4182874  Chorizanthe cuspidata A. A. Heller 1906-6-8 8383 San Mateo Near Ocean View, San Francisco 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
  CAS-BOT-BC389727  Chrysolepis chrysophylla M. K. Wicksten 1971-7-12 63 San Mateo Huddart Pk. Comment
  JEPS78655  Chrysolepis chrysophylla Edward Lee 1936-1-26 1727 San Mateo 4.5 mi out Woodside (Kings Mountain Road, e side of Cahill Ridge); Cahill Ridge Comment
  RSA3093  Chrysolepis chrysophylla Carl B. Wolf 1931-8-21 2335 San Mateo 1/2 way up the east side of Kings Mt. 366 Comment
  UC5444  Chrysolepis chrysophylla var. minor J. Burtt Davy Jun 21 1893-Jun 23 1893 1127 San Mateo Pilarcitos Lake and Pilarcitos Canyon; Pilarcitos Lake, Pilarcitos Canyon Comment
  JEPS85230  Cicendia quadrangularis Roy E. Buck and James A. West 1985-4-29 524 San Mateo 1.9 air km ene Franklin Point (just n of Whitehouse Canyon rd, ca 0.8 km ne of Whitehouse Canyon Rd junction with Calif Hwy 1, Cascade Ranch) Comment
  JROH2581  Cicendia quadrangularis John H. Thomas 1958-5-10 7154 San Mateo Jasper Ridge Biological Preserve, Stanford University. Growing in grassy openings among oaks to the north of the top of the ridge. Comment
  CDA21620  Cirsium brevistylum D. G. Kelch, B. G. Baldwin 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  CDA20522  Cirsium brevistylum E. Finley 2005-4-21 PDR 1365078 San Mateo San Francisco Bay Area; Bean Hollow Rd, Pescadero. 0 Comment
  UC1416530  Cirsium fontinale var. fontinale George E. Pilz 1971-5-9 616 San Mateo e side of Crystal Springs Reservoir, Interstate 280 has cut through the colony Crystal Springs Reservoir 121 Comment
  UC894973  Cirsium fontinale var. fontinale Lewis S. Rose 1933-6-9 33223 San Mateo Crystal Springs Lake Comment
  UCD130569  Cirsium fontinale var. fontinale T. C. Fuller 1960-6-23 4541 San Mateo east shore of Upper Crystal Springs Lake, 0.7 mile south of road across lake. Comment
  RSA0008429  Cirsium fontinale var. fontinale L. S. Rose 1953-6-29 53046 San Mateo 0.5 mile E of Crystal Springs Lake on road to Belmont. Comment
  CAS-BOT-BC285671  Cirsium occidentale var. occidentale A. A. Heller 1906-6-8 8379 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks Comment
  CAS-BOT-BC280132  Cirsium occidentale var. venustum A. D. E. Elmer 1903-6-1 4259 San Mateo Crystal Springs Lake Comment
  UC30885  Cirsium occidentale var. venustum J. Burtt Davy 1895-4-20 1083 San Mateo San Mateo Creek Comment
  CAS-BOT-BC280511  Cirsium quercetorum J. H. Thomas 1958-6-11 7227 San Mateo About 4.3 miles due east of Belmont near Crystal Springs Reservoir 91 Comment
  CAS-BOT-BC280521  Cirsium quercetorum Alice Eastwood; John Thomas Howell 1938-6-26 6078 San Mateo Crystal Springs Lake Comment
  UC175180  Cirsium quercetorum W. N. Suksdorf 1913-6-28 114 San Mateo San Bruno San Francisco Area, San Bruno Comment
  CAS-BOT-BC280525  Cirsium quercetorum V. F. Hesse 1964-5-26 3198 San Mateo Whitehouse Creek road 60 Comment
  JROH636  Cirsium vulgare John H. Thomas 1970-7-5 15670 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH638  Cirsium vulgare John H. Thomas 1974-6-30 17460 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC160924  Clarkia amoena subsp. amoena E. M. Zeile 1921-7-30 s.n. San Mateo Near Mussel Rock Comment
  RSA130900  Clarkia amoena subsp. amoena E. K. Balls 1958-7-19 23570 San Mateo State Highway 5, 2 miles NW of junction with road from Big Basin State Park 671 Comment
  RSA41290  Clarkia epilobioides Robert F. Hoover 1941-4-23 4904 San Mateo Redwood City hills Comment
  HSC23960  Clarkia purpurea Mary Katherine Wicksten 1971-6-17 46 San Mateo Huddart Park above Oak Flat Comment
  UCD104853  Clarkia purpurea W. A. Harvey; J. M. Tucker 1948-6-29 1710 San Mateo Beside road to Portola State Park, just W of junction with Highway 5 (Skyline Boulevard). Comment
  CAS-BOT-BC163965  Clarkia purpurea subsp. quadrivulnera John H. Thomas 1958-5-13 7168 San Mateo About 3 miles SW of San Mateo along Skyline Blvd, 0.3 mi. S of its intersection with Black Mt. Rd. 304 Comment
  RSA176537  Clarkia purpurea subsp. viminea John H. Thomas 1963-6-23 10164 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto 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-BC165149  Clarkia rubicunda Walter Knight; Walter Knight 1963-6-24 s.n. San Mateo Quarry 4 Comment
  CAS-BOT-BC165161  Clarkia rubicunda W. R. Dudley 1896-11-15 s.n. San Mateo Near Pilarcitos Lake Comment
  JROH3011  Clarkia rubicunda Richard L. Garber unspecified s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3026  Clarkia rubicunda John Hunter Thomas 1981-5-25 20646 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM271814  Clarkia rubicunda Lyman Benson 1930-5-12 2122 San Mateo Stanford University, Lake Searsville 152 Comment
  RSA113601  Clarkia rubicunda Peter H. Raven 1957-6-24 10972 San Mateo North of the Light House, Pigeon Point Comment
  RSA6209  Clarkia rubicunda Carl B. Wolf 1932-7-25 3906 San Mateo Hills to the south of Emerald Lake, back of Redwood City 152 Comment
  UC107828  Clarkia rubicunda Katharine Brandegee 1905-6-20 San Mateo near Half Moon Bay; Moss Beach Comment
  UCR3564  Clarkia rubicunda Wm. Horn Jr. 1963-8-26 630826- 03 San Mateo 1.5 mi. east of Tunitas Beach, on Tunitas Creek Road 76 Comment
  CAS-BOT-BC165144  Clarkia rubicunda Elizabeth McClintock 1965-6-13 s.n. San Mateo Lower slope on south side above Olivet Cemetery Comment
  RSA128810  Clarkia rubicunda G. H. Mallory 1919-6-24 s.n. San Mateo La Honda Road Comment
  RSA15204  Clarkia rubicunda Carl B. Wolf 1926-10-19 86 San Mateo West of La Honda; Santa Cruz Mountains Comment
  UC1279948  Clarkia rubicunda Peter H. Raven 1957-7-4 11046 San Mateo 6.1 mi from San Gregorio (on road to La Honda); San Gregorio Creek Comment
  UC1561235  Clarkia rubicunda Barbara Ertter 1989-6-4 8556 a San Mateo near jct. Crocker Ave. and Alexander Ave. (n side of hill that is n-most extension of San Bruno Mt. on n side of Guadalupe Canyon); Daly City Comment
  UCD104833  Clarkia rubicunda Peter H. Raven 1957-7-4 11046 San Mateo 6.1 miles from San Gregorio on road to La Honda, near San Gregorio Creek. Comment
  SEINET4149816  Clarkia speciosa E. Crawford 1982-9-25 s.n. San Mateo About 2 miles west of San Gregario on San Gregario Road 37 Comment
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Dec 21 2021
  CAS-BOT-BC439291  Claytonia exigua subsp. exigua D. K. Gillespie 1930-4-21 9222 a San Mateo Emerald Lake near Redwood City. Comment
  JROH3330  Claytonia exigua subsp. exigua D. D. Davis 1903-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3334  Claytonia exigua subsp. exigua John H. Thomas 1975-4-5 17717 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JROH3343  Claytonia perfoliata subsp. perfoliata John H. Thomas 1963-5-15 10088 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3345  Claytonia perfoliata subsp. perfoliata John H. Thomas 1967-3-13 12410 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
  SEINET182860 Image available Claytonia perfoliata subsp. perfoliata John Campbell 1925-1-26 San Mateo Burlingame. Comment
  CAS-BOT-BC91486  Clematis lasiantha C. F. Baker 1902-4-12 499 San Mateo La Honda. Comment
  JROH3411  Clematis lasiantha D. E. Breedlove 1971-5-31 19378 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH3418  Clematis lasiantha John Hunter Thomas 1986-4-10 23955 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA195552  Clematis lasiantha John H. Thomas 1966-4-29 11586 San Mateo Jasper Ridge Biological experimental area, 5 miles SW of Palo Alto. Comment
  CAS-BOT-BC91479  Clematis lasiantha W. R. Dudley 1900-3-16 s.n. San Mateo Santa Cruz Peninsula. By road below Harkersville. Comment
  UC1236523  Clintonia andrewsiana J. H. Thomas 1954-6-11 4269 San Mateo 1.5 mi w of La Honda (along San Gregorio Creek); San Gregorio Creek 106 Comment
  CAS-BOT-BC499399  Clintonia andrewsiana W. R. Dudley 1895-6-8 s.n. San Mateo Road near Alpine School House, Black mt. Comment
  CAS-BOT-BC499405  Clintonia andrewsiana David D. Keck 1932-6-1 1797 San Mateo 1 mile west of Skyline Blvd. on La Honda road, Santa Cruz Mountains Comment
  SEINET12044201  Clintonia andrewsiana L. S. Rose 1933-1 33254 San Mateo Kings Mt Comment
  CAS-BOT-BC240926  Collinsia multicolor Blanche Clear 1938-5-22 s.n. San Mateo On road to Emerald Lake Comment
  CAS-BOT-BC240927  Collinsia multicolor Robert F. Hoover 1941-4-23 4901 San Mateo San Mateo Creek below Crystal Springs Dam Comment
  UC1736305  Collinsia multicolor Dean W. Taylor 1994-5-10 14276 San Mateo San Mateo Creek drainage; along Crystal Springs Road 0.3 mi East of junction of Tartan Trail Comment
  UC26582  Collinsia multicolor Alice Eastwood Apr 1896 San Mateo On the road to Crystal Springs. Comment
  UC26610  Collinsia multicolor J. Burtt Davy 1895-4-20 1025 San Mateo Millbrae Comment
  CAS-BOT-BC240930  Collinsia multicolor W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula. Pilar Pt. south slope by grade near summit of Montara Mts. Comment
  JROH4023  Collinsia sparsiflora var. collina John Hunter Thomas 1992-4-9 25135 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5706  Collinsia sparsiflora var. collina John Rawlings 2015-3-15 1349 A San Mateo Jasper Ridge Biological Preserve, Stanford University 110 Comment
  JEPS47718  Collinsia sparsiflora var. collina Elizabeth McClintock 1965-3-21 San Mateo n side of San Bruno Mountain (1/4 mi e of Brisbane power lines) Comment
  JROH3141  Collomia heterophylla John Hunter Thomas 1985-5-22 23674 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH206  Conium maculatum John H. Thomas 1964-7-3 10442 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road above Searsville Lake Comment
  JROH208  Conium maculatum John H. Thomas 1964-7-3 10442 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road above Searsville Lake Comment
  JROH211  Conium maculatum John H. Thomas 1975-6-5 17927 San Mateo Jasper Ridge Biological Preserve, Stanford University; near lowflow crossing Comment
  JROH218  Conium maculatum John Hunter Thomas 1982-5-18 20947 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Searsville Lake near bridge Comment
  SEINET4182807 Image available Conium maculatum Robert A. Norris 1974-7-20 2117 San Mateo San Francisco, Near stream in canyon, Glen Park Recreation Center, San Miguel Hills, San Francisco, S.F. Co., Calif. Comment
  JROH4025  Cordylanthus pilosus subsp. pilosus John H. Thomas 1970-7-5 15660 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC750689  Cordylanthus pilosus subsp. pilosus Lewis S. Rose 1941-8-9 41362 San Mateo Woodside 548 Comment
  CAS-BOT-BC101480  Corethrogyne filaginifolia J. I. McMurphy 1906-5-8 s.n. San Mateo Between Crystal Springs & Belmont Grade Comment
  JEPS15884  Corethrogyne filaginifolia Edward Lee Greene 1886-6-22 San Mateo Crystal Springs Comment
  LA205836  Corethrogyne filaginifolia D. Keck; 1932-5-25 1785 San Mateo E side of Crystal Springs Lake Comment
  POM57992  Corethrogyne filaginifolia var. californica C. F. Baker 1902-5-10 810 San Mateo Crystal Springs Lake. Comment
  POM211526  Cornus glabrata C. B. Wolf 1931-8-20 2329 San Mateo 3 miles west of Mayfield on road to La Honda. 91 Comment
  SJSU128  Cornus sericea T. Merson 1933-10-4 San Mateo by Mud Lakes near Coal Mine Ridge above Corte Madera Cr Comment
  UC796713  Coronopus didymus Ira L. Wiggins 1949-7-2 12198 San Mateo Pescadero Beach Comment
  CAS-BOT-BC180375  Corylus cornuta subsp. californica Walter Knight; Irja Knight 1964-9-2 61 San Mateo On Mouth of Colma Canyon. San Bruno Mountain Comment
  HSC23909  Corylus cornuta subsp. californica Mary Katherine Wicksten 1971-6-17 81 San Mateo Huddart Park above Oak Flat Comment
  POM270385  Corylus cornuta var. californica Lyman Benson 1928-12-15 892 San Mateo Near La Honda; Santa Cruz Mt. Range. 244 Comment
  RSA119710  Corylus cornuta var. californica James I. McMurphy 1902-05 s.n. San Mateo Kings Mountain. Comment
  RSA152233  Corylus cornuta var. californica I. L. Wiggins 1925-04 1649 San Mateo On Kings Mtn Road three fourths of a mile above Woodside. Comment
  SEINET12034012  Corylus rostrata var. californica Unknown 1929-1 7292 San Mateo Kings Mtn Comment
  JROH3636  Cotoneaster pannosus Judith Wagner 1974-11-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3647  Cotoneaster pannosus John Hunter Thomas 1992-5-14 25232 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat ramp Comment
  CAS-BOT-BC291415  Cotula coronopifolia Josephine D. Randall 1911-3-27 s.n. San Mateo Between Pacific Grove and Moss Beach, Monterey Peninsula Comment
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Oct 27 2021
  CAS-BOT-BC291470  Cotula coronopifolia R. Bacigalupi 1941-10-22 2747 San Mateo Very close to the San Francisco - San Mateo County Line Comment
  CDA19089  Cotula coronopifolia J. Beall 2001-4-24 PDR 064443 San Mateo Lightly scattered in Belmont Creek at Industrial Rd., Belmont. 0 Comment
  UC1119273  Cotula coronopifolia G. E. Sindel 1935-7-25 313 San Mateo mouth Pescadero Creek 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-BC427833  Crassula connata John H. Thomas 1965-4-29 10630 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  JROH1891  Crassula connata John Hunter Thomas 1990-4-26 24814 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Whiskey Hill Gate Comment
  UCSC007735  Crassula connata Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH3649  Crataegus laevigata Carol Zabel and Irene Brown 2003-6-15 49 San Mateo Jasper Ridge Biological Preserve, Stanford University. Hermit's cabin site. Comment
  JEPS125947  Crataegus monogyna D. W. Taylor 2000-8-1 17538 San Mateo Montara Mountain: Scarper Peak, western slope of the pek near the summit. Comment
  JROH4976  Crypsis schoenoides Herbert Dengler 1961-1-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Pond bottom (W. of Portola Road). Comment
  JROH4995  Crypsis schoenoides John Hunter Thomas 1988-10-17 24598 San Mateo Jasper Ridge Biological Preserve, Stanford University; on delta in lake Comment
  JROH5765  Cryptantha flaccida John Rawlings 2016-3-6 1678 San Mateo Jasper Ridge Biological Preserve, Stanford University; upper Big Inlet in serpentine along seasonal drainage 166 Comment
  JROH1377  Cryptantha microstachys John Hunter Thomas 1978-4-22 19102 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
  SEINET3863377 Image available Cupressus macrocarpa Barbara Schneider 1963-2-21 18 San Mateo By ocean. One intersection N of Skyline Blvd. and Westridge Ave. on Skyline Blvd.; 0 30 Comment
  CAS-BOT-BC287328  Cynara cardunculus J. H. Thomas 1958-10-21 7487 San Mateo Near intersection of Bayshore Highway and Main St, Redwood City, near slough Comment
  CAS-BOT-BC287335  Cynara cardunculus John Thomas Howell 1956-11-14 31961 San Mateo Bayshore Highway just S of Main St, Redwood City Comment
  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
  HSC23980  Cynoglossum grande Mary Katherine Wicksten 1971-7-2 149 San Mateo Huddart Park, Miwok Flat Comment
  JROH1390  Cynoglossum grande John H. Thomas 1958-2-15 6986 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1394  Cynoglossum grande John Hunter Thomas 1981-5-14 20573 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old shack riders shack Comment
  RSA130413  Cynoglossum grande W. R. Dudley 1896-2-16 s.n. San Mateo Glen Gloaming, branch of Pescadero and Mill Creek near Black Mt. Comment
  JROH5902  Cynoglossum grande L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; east side of Searsville Lake below Rattlesnake rocks Comment
  SD146097  Cynosurus echinatus G. K. Helmkamp, E. A. Helmkamp 1999-6-28 4958 San Mateo Santa Cruz Mountains; Sky Londa; Junction of CA-84 & CA-35; 5 miles south of central Redwood City 456 Comment
  UCR121491  Cynosurus echinatus George K. Helmkamp, E. A. Helmkamp 1999-6-28 4958 San Mateo Coast Range; Santa Cruz Mtns, Sky Londa; junction of Calif. Hwy 84 and Calif. Hwy 35, 5 mi south of central Redwood City 457 Comment
  UCD141113  Cyperus eragrostis Lewis S. Rose 1965-9-20 65107 San Mateo Burlingame, Trousdale Dr. and California Dr. 9 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-BC136517  Cypripedium montanum Miss. F. Patterson 1911-5-6 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC198194  Cytisus scoparius Phillip C. Wheeler 1965-4-27 s.n. San Mateo Sierra Point, Brisbane, San Bruno Mountain Comment
  CAS-BOT-BC198210  Cytisus striatus Elizabeth McClintock; Paul Reeberg 1989-9-4 s.n. San Mateo West end of industrial park, San Bruno Mountains Comment
  CAS-BOT-BC192244  Danthonia californica A. D. E. Elmer 1903-6-1 4707 San Mateo Crystal Springs Lake Comment
  HSC82084  Danthonia californica Thomas W. Nelson, Jane P. Nelson 1980-5-3 5133 San Mateo Intersection of Hwy. 92 and Hwy. 280, W of San Mateo. Comment
  RSA18328  Danthonia californica var. americana C. B. Wolf 1929-5-10 3707 San Mateo Coast at Pigeon Pt. South of Pescadero. Comment
  JROH1904  Datisca glomerata John H. Thomas 1961-6-14 9543 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH223  Daucus pusillus John H. Thomas 1968-5-22 14455 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH225  Daucus pusillus John H. Thomas 1970-4-28 15610 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
  JEPS20107  Deinandra corymbosa Peter H. Raven 1957-9-1 11295 San Mateo 1.1 mi s Pigeon Point Lighthouse Comment
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Aug 2 2007
  OBI48631  Deinandra corymbosa Lewis S. Rose 1937-8-29 37644 San Mateo Moss Beach 15 Comment
  SD12568  Deinandra corymbosa Edith A. Purer 1933-7-27 5339 San Mateo High stabilized sand dunes, Pigeon Point. Comment
  UC702538  Deinandra corymbosa L. S. Rose 1941-8-9 41361 San Mateo Moss Beach, open sandy coastal fields Moss Beach 16 Comment
  JEPS35779  Deinandra corymbosa V. F. Hesse 1964-5-26 3201 San Mateo near coast Whitehouse Creek Road 45 Comment
  UC222682  Deinandra corymbosa H. M. Hall 1915-8-28 10112 San Mateo north of San Bruno Comment
  UC406882  Deinandra corymbosa David D. Keck 1927-6-10 396 San Mateo Comment
  CAS-BOT-BC299196  Deinandra corymbosa subsp. corymbosa J. H. Thomas 1949-6-4 592 San Mateo Along the coast 1.4 miles s. of road to Pescadero Comment
  CAS-BOT-BC299197  Deinandra corymbosa subsp. corymbosa J. H. Thomas 1949-10-16 1152 San Mateo Just north of outlet of San Gregorio Creek Comment
  CAS-BOT-BC299211  Deinandra corymbosa subsp. corymbosa Lewis S. Rose 1931-8-28 s.n. San Mateo Moss Beach Comment
  CAS-BOT-BC299215  Deinandra corymbosa subsp. corymbosa Walter Knight; Irja Knight 1965-5-15 s.n. San Mateo Pig Ranch Ravine, San Bruno Mountain Comment
  CAS-BOT-BC299225  Deinandra corymbosa subsp. corymbosa H. M. Hall 1930-3-24 12786 San Mateo Near Pescadero 10 Comment
  HSC25037  Delphinium californicum L. S. Rose 1965-5-3 65058 San Mateo San Bruno Mtns., Colma Canyon 61 Comment
  JROH3432  Delphinium californicum subsp. californicum D. E. Breedlove 1971-5-31 19358 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH3441  Delphinium californicum subsp. californicum John Hunter Thomas 1989-5-11 24730 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along road near and below dam Comment
  RSA10347  Delphinium hesperium H. A. Barker 1926-5-5 578 San Mateo Near Searsville Lake Comment
  UCSB11751  Delphinium hesperium Olson, Jim 1962-4-17 San Mateo 10 miles southeast of Halfmoon Bay; on Canada Road 45 Comment
  JROH3448  Delphinium hesperium subsp. hesperium John Hunter Thomas 1981-5-25 20637 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC9872  Delphinium nudicaule David Daniels Keck 1934-7-7 2928 San Mateo Kings Mountain, west of summit. 609 Comment
  UC136329  Delphinium nudicaule C. F. Baker 1902-5-10 795 San Mateo along banks King's Mt. Comment
  SBBG28536  Delphinium nudicaule W. R. Dudley 1893-5-27 San Mateo beyond King's Mtn Comment
  SEINET12086765  Delphinium nudicaule L. S. Rose 1931-1 s.n. San Mateo Kings Mt 914 Comment
  JROH3452  Delphinium patens subsp. patens John H. Thomas 1972-4-1 16050 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC116533  Delphinium patens subsp. patens P. H. Arnaud 1941-4-21 s.n. San Mateo Hills - back of Hesler farm, Redwood City Comment
  CAS-BOT-BC7893  Delphinium variegatum C. F. Baker 1902-4-6 458 San Mateo Crystal Springs Lake Comment
  UC136351  Delphinium variegatum C. F. Baker May 1902 748 San Mateo Woodside 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
  CAS-BOT-BC7896  Delphinium variegatum subsp. variegatum Ned Cahill 1974-4-29 200 San Mateo near jct. of Canada and Edgewood Roads, about 3 mi. westward from Redwood City Comment
  CAS-BOT-BC7937  Delphinium variegatum subsp. variegatum John Hunter Thomas 1961-5-14 9386 San Mateo Along Canada Road near intersection of Edgewood Road 91 Comment
  CAS-BOT-BC192598  Deschampsia cespitosa subsp. holciformis L. R. Abrams 1927-6-15 s.n. San Mateo Spring Valley Lakes Comment
  HSC9615  Deschampsia cespitosa subsp. holciformis C. B. Wolf 1927-6-16 San Mateo W side of Spring Valley Lakes. Comment
  SJSU15433  Deschampsia cespitosa subsp. holciformis Toni Corelli 2010-5-4 626 San Mateo Ano Nuevo, Cascade Field along Atkinson Bluff Trail 12 Comment
  CAS-BOT-BC192594  Deschampsia cespitosa subsp. holciformis Harold E. Stark 1959-6-4 s.n. San Mateo S. F. Watershed and Wildlife Refuge 1/2 mi. w. San Bruno, N. end of Lake San Andreas Comment
  CAS-BOT-BC192634  Deschampsia danthonioides H. A. Dutton 1900-4-25 s.n. San Mateo Woodside Comment
  RSA791559  Deschampsia holciformis Peter Rubtzoff 1976-6-13 8639 San Mateo San Bruno Mtn: 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  SEINET10900085  Deschampsia holciformis Edwin B. Copel 1903-6-17 Copeland 3306 a San Mateo Montara Point Comment
  CAS-BOT-BC912  Dicentra formosa J. H. Thomas 1961-5-14 9364 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  UC9936  Dicentra formosa J. Burtt Davy 1895-4-21 1060 San Mateo Pilarcitos Creek Comment
  UCR51654  Dicentra formosa R. Ascanio 1988-4-17 s.n. San Mateo E on Gazo Creek Road off Hwy 1, c. 2 mi. north of Ano Nuevo State Reserve 85 Comment
  CAS-BOT-BC500895  Dichelostemma capitatum Fred Hemphill 1973-5-6 836 San Mateo San Carlos, Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC500891  Dichelostemma capitatum Ned Cahill 1974-4-19 152 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  SEINET12044682  Dichelostemma capitatum W. R. Dudley 1894-1 s.n. San Mateo San Mateo below Dam, Santa Cruz Peninsula Comment
  JROH4660  Dichelostemma capitatum subsp. capitatum John Hunter Thomas 1991-4-25 25003 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM169473  Dichelostemma capitatum subsp. capitatum C. F. Baker 1903-4-6 1891 San Mateo San Bruno Hills near S.F. [San Francisco] Comment
  UCR156574  Dichelostemma capitatum subsp. capitatum P. W. Rundel 1962-4-15 1030 San Mateo San Francisco Bay Region, La Canada Rd., 1 mi N of Pulgas Water Temple [near Upper Crystal Springs Reservoir] 122 Comment
  JROH4664  Dichelostemma congestum John Hunter Thomas 1977-6-16 18777 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC56594  Digitalis purpurea Steven Triano 1988-5-24 168 San Mateo Along se side of Old La Honda Road ca 0.5 air miles e of SkyLonda. 405 Comment
  JROH5077  Digitaria sanguinalis John H. Thomas 1974-10-29 17648 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accomodate water from Corte Madera Cr. Comment
  SEINET8375013  Diplacus aridus J. I. McMurphy 1906-5-20 25 San Mateo Kings Mt. Santa Cruz Mts. Comment
  CAS-BOT-BC150456  Diplacus aurantiacus J. I. McMurphy 1906-5-20 25 San Mateo King's Mt., Santa Cruz Mts. Comment
  CAS-BOT-BC150457  Diplacus aurantiacus Viola Nichols 1911-5-6 1006 San Mateo Belmont, 2nd hill Comment
  CAS-BOT-BC121856  Dirca occidentalis Lewis S. Rose 1939-4-12 39060 San Mateo Crystal Springs Lake 152 Comment
  CAS-BOT-BC121857  Dirca occidentalis Lewis S. Rose 1964-3-9 64004 San Mateo N end of Crystal Springs Lake 121 Comment
  SJSU4530  Dirca occidentalis L. S. Rose 1964-3-9 64004 San Mateo N end Crystal Springs L 121 Comment
  UC1042323  Dirca occidentalis John Thomas Howell 1954-7-8 30012 San Mateo canyon 0.5 mi below Lake Pilarcitos Dam Comment
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Feb 2 2012
  UC143369  Disporum hookeri C. F. Baker 1902-4-6 650 San Mateo Crystal Springs Lake; Pacific Coast, Crystal Springs Lake Comment
  UC860256  Disporum hookeri Lewis S. Rose 1939-5-5 39095 San Mateo San Mateo Canyon 45 Comment
  POM277215  Disporum hookeri var. hookeri Lyman Benson 1937-8-15 8490 San Mateo Upper San Francisquito Creek, Mt. Range: Santa Cruz; Watershed: San Francisco Bay. 244 Comment
  RSA15289  Disporum hookeri var. hookeri Carl B. Wolf 1927-4-3 257 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  UC204220  Disporum smithii A. D. E. Elmer May, 1903 4697 San Mateo Butano Creek Comment
  CAS-BOT-BC195720  Distichlis spicata Dr. Barton W. Evermann 1924-6-22 s.n. San Mateo Ano [Ano] Nuevo Island Comment
  CDA20072  Dittrichia graveolens D. Pendleton 2002-10-16 PDR 065871 San Mateo San Francisco Bay Area; Sandhill Rd & Lawler Ranch Rd, W of Hwy 280. 0 Comment
  POM287082  Dodecatheon clevelandii subsp. patulum Lyman Benson 1929-3-16 1014 San Mateo Crystal Springs Lake, Spring Valley Comment
  CAS-BOT-BC159541  Drymocallis glandulosa var. glandulosa J. H. Thomas 1949-5-28 563 San Mateo Alpine Road, about 1 mile from intersection with Mt. Home Road, going westward. Comment
  JROH3736  Drymocallis glandulosa var. wrangelliana John H. Thomas 1973-6-15 16842 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH26  Dryopteris arguta John H. Thomas 1973-6-15 16840 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  POM193661  Dryopteris arguta L. R. Abrams 1901-12-29 2251 San Mateo Santa Cruz Mountains Comment
  RSA693711  Dryopteris arguta E. S. Spalding 1923-8-3 s.n. San Mateo Near Pulgas Tunnel Comment
  SEINET10530141  Dryopteris arguta Mary Susan Taylor 1978-8-30 Taylor 1861 San Mateo Comment
  SEINET11619629  Dryopteris arguta Unknown 1932-1 8921 San Mateo Woodside Comment
  UCSB17937  Dryopteris arguta Schulte, John 1963-4-14 San Mateo Jasper Ridge, 3 miles SW of Stanford campus, between Santa Clara Valley and Santa Cruz Mtns. 137 Comment
  UCR130218  Dudleya caespitosa George K. Helmkamp, E. A. Helmkamp 1999-6-28 4995 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  CDA33784  Dudleya farinosa D. G. Kelch 2011-3-13 11 .051-B San Mateo Pacifica. Along sea bluffs Comment
  JROH1816  Dysphania ambrosioides John Hunter Thomas 1980-11-27 20185 San Mateo Jasper Ridge Biological Preserve, Stanford University; delta Comment
  CDA20206  Echinochloa colona J. Eide 2003-8-22 PDR 1424868 San Mateo San Francisco Bay Area; Residence at 74 Atherton Ave, Atherton. 0 Comment
  JROH5090  Echinochloa crus-galli John Hunter Thomas 1981-9-24 20749 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC112956  Eleocharis macrostachya Copeland 1903-3-1 3340 San Mateo Searsville Comment
  CAS-BOT-BC112957  Eleocharis macrostachya Rimo Bacigalupi 1922-5-25 s.n. San Mateo Emerald Lake Redwood City. Comment
  POM144786  Eleocharis palustris A. D. E. Elmer 1903-07 4767 San Mateo San Pedro. Comment
  CAS-BOT-BC203880  Elymus X hansenii Elizabeth McClintock; Paul Reeberg 1989-5-30 s.n. San Mateo San Bruno Mountains. On east-facing slope below Ridge Trail; Juncus Ravine 182 Comment
  UC50673  Elymus californicus Kellogg and Brennon San Mateo San Gregorio's Redwoods Comment
  POM295857  Elymus glaucus Lyman Benson 1935-5-5 6541 San Mateo Lake Searsville; Santa Cruz Mt. Range 152 Comment
  UC646422  Elymus glaucus J. Clausen 1937-6-20 1529 San Mateo hills w Redwood City (near the Easter Cross) Comment
  JROH5102  Elymus glaucus subsp. glaucus John H. Thomas 1967-6-1 12951 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15227  Elymus glaucus subsp. virescens Toni Corelli 2012-7-12 803 San Mateo Wavecrest, west of Highway 1 in Half Moon Bay 24 Comment
  UCSC007753  Elymus mollis subsp. mollis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC235203  Elymus multisetus L. R. A. 1901-5-1 1866 San Mateo Woodside Comment
  CAS-BOT-BC235211  Elymus multisetus George Oberlander 1950-7-15 1015 San Mateo San Francisco Watershed Reserve. North of San Andreas Lake Comment
  JROH5120  Elymus multisetus D. E. Breedlove 1971-5-31 19389 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  LA14855  Elymus multisetus David D. Keck; 1932-5-6 1469 San Mateo Belmont Comment
  RSA101004  Elymus multisetus G. Oberlander 1950-7-15 1015 San Mateo north of San Andreas Lake, San Francisco Watershed Reserve Comment
  POM254417  Epilobium brachycarpum F. W. Peirson 1925-9-13 6428 San Mateo Rockaway beach Comment
  UCR3568  Epilobium ciliatum Wm. Horn Jr. 1963-6-10 630610- 01 San Mateo San Francisco Bay Region, Hillsborough [Burlingame], 2240 Redington Road 30 Comment
  UCR123145  Epilobium ciliatum subsp. glandulosum George K. Helmkamp, E. A. Helmkamp 2001-6-2 6796 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
  UC1191730  Epilobium ciliatum subsp. watsonii Malcolm A. Nobs and S. Galen Smith 1949-8-26 1585 San Mateo pond in sand dunes about 1 mi s Half Moon Bay Comment
  JROH3061  Epilobium densiflorum John H. Thomas 1971-8-7 16018 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3068  Epilobium densiflorum John Hunter Thomas 1981-7-12 20703 San Mateo Jasper Ridge Biological Preserve, Stanford University; on old beach Comment
  JROH3073  Epilobium torreyi John H. Thomas 1961-4-29 9194 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3075  Epilobium torreyi John H. Thomas 1969-5-28 15091 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5606  Epipactis helleborine John Rawlings, Ann Lambrecht 2011-6-21 1212 San Mateo Jasper Ridge Biological Preserve, Stanford University. Vicinity of an abandoned camper shell near a small drainage west of the switchback zone of the Escobar/Webb Ranch horse trail on north side of ridge. 100 Comment
  RSA430449  Equisetum hyemale var. affine Lyman Benson 1930-5-26 2128 San Mateo Stanford University. Lake Searsville. 152 Comment
  CAS-BOT-BC57614  Equisetum telmateia A. D. E. Elmer 1903-3-1 4501 San Mateo Portola Comment
  UC311544  Equisetum telmateia subsp. braunii A. D. E. Elmer March, 1903 4501 San Mateo Portola Comment
  POM25738  Equisetum telmateia var. braunii A. D. E. Elmer 1903-03 4501 San Mateo Portola Comment
  POM214347  Equisetum telmateia var. braunii I. L. Wiggins 1931-3-15 5103 San Mateo Between Skyline Blvd and La Honda. Comment
  RSA15198  Equisetum telmateia var. braunii C. B. Wolf 1926-10-19 75 San Mateo La Honda Grade. Santa Cruz Mtns. Comment
  RSA15287  Equisetum telmateia var. braunii C. B. Wolf 1927-4-3 255 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  CAS-BOT-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
  SD37544  Erechtites argutus Edith A. Purer 1933-8-13 5422 San Mateo Along roadside, near Belmont. Comment
  RSA191936  Erechtites glomeratus R. F. Thorne, Percy C. Everett 1963-6-9 32212 San Mateo On top of San Bruno Mountain. 335 Comment
  JROH3148  Eriastrum abramsii John Hunter Thomas 1977-6-16 18770 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU12768  Eriastrum abramsii Toni Corelli 1986-5-22 San Mateo Edgewood County Park near junction of Edgewood Rd & Hwy 280, Redwood City 219 Comment
  JROH647  Erigeron bonariensis Toni Corelli 2006-8-16 326 San Mateo Jasper Ridge Biological Preserve, Stanford University. South of Road B, along San Francisquito Creek in dry creek bed below Dennis Martin marker site 70 Comment
  CAS-BOT-BC300614  Erigeron foliosus var. franciscensis Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo San Bruno Mountain. In old quarry in Colma Canyon Comment
  JEPS89680  Erigeron glaucus Dean W. Taylor 1988-3-30 9466 San Mateo northern 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); Central Coast Region (CCo), San Bruno Mountain 176 Comment
  SD40122  Erigeron glaucus Edith A. Purer 1933-7-27 5382 San Mateo Two miles south of Pigeon Point. Comment
  CAS-BOT-BC216132  Eriodictyon californicum Fred Hemphill 1973-4-22 700 San Mateo North of Malabar Road and Melendy Dr., San Carlos 207 Comment
  CAS-BOT-BC216133  Eriodictyon californicum Fred Hemphill 1973-5-6 762 San Mateo North of Malabar Road and Melendy Dr., San Carlos 207 Comment
  CAS-BOT-BC216250  Eriodictyon californicum Volney Rattan 1881-1-1 s.n. San Mateo Belmont Comment
  POM65463  Eriodictyon californicum A. D. E. Elmer 1903-04 4801 San Mateo Lake San Andreas Comment
  SBBG29988  Eriodictyon californicum H. A. Barker, M. Dearing 1926-5-1 590 San Mateo King's Mtn Comment
  CAS-BOT-BC248711  Eriogonum arborescens Elizabeth McClintock; Paul Reeberg 1988-9-1 s.n. San Mateo San Bruno Mountains. Above area where Caltrans had planted this species along Bayshore Boulevard 91 Comment
  CAS-BOT-BC250550  Eriogonum gracile Ned Cahill 1974-10-8 383 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC251976  Eriogonum latifolium Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo above Hillside Blvd., South San Francisco Comment
  CAS-BOT-BC251977  Eriogonum latifolium John H. Thomas 1974-5-7 17320 San Mateo San Bruno Mountain. Along Guadalupe Parkway opposite school. Western side of mountain Comment
  RSA273144  Eriogonum latifolium Glenn A. Gorelick 1967-5-12 s.n. San Mateo Approximately two miles from coast in San Bruno Mountains Comment
  SEINET11938062  Eriogonum latifolium M. T. Doutt 1931-1 602 San Mateo near Portola, along ocean Comment
  SEINET11938065  Eriogonum latifolium E. H. Graham 1931-1 6932 San Mateo Ano Nuevo Point, S of San Francisco Comment
  UCSC009195  Eriogonum latifolium Randall Morgan 2013-5-24 5531 San Mateo On steep, ocean-facing slope around 1+ mile inland, above upper Lake Lucerne Comment
  POM193637A  Eriogonum luteolum L. R. Abrams 1902-9-21 2988 San Mateo Crystal Lake Comment
  JROH3229  Eriogonum luteolum var. luteolum John H. Thomas 1967-11-5 14133 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3231  Eriogonum luteolum var. luteolum John H. Thomas 1974-10-26 17636 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC306654  Eriogonum luteolum var. luteolum A. D. E. Elmer June, 1903 4309 San Mateo Belmont Comment
  JROH3227  Eriogonum luteolum var. luteolum John H. Thomas 1964-7-3 10441 San Mateo Jasper Ridge Biological Preserve, Stanford University. Chaparral on top of ridge Comment
  JROH3238  Eriogonum luteolum var. luteolum Carol Zabel 1989-8-27 33 San Mateo Jasper Ridge Biological Preserve, Stanford University. Herb's serpentine loop, top of Trail 5. Comment
  CAS-BOT-BC269006  Eriogonum nudum var. auriculatum Lewis S. Rose 1964-9-9 64074 San Mateo Emerald Lake, w. of Redwood City 243 Comment
  CAS-BOT-BC269007  Eriogonum nudum var. auriculatum L. S. Rose 1927-5-24 s.n. San Mateo San Mateo Comment
  RSA95580  Eriogonum nudum var. auriculatum L. S. Rose 1953-6-29 53047 San Mateo 0.5 mile E of Crystal Springs Lake on road to Belmont. Comment
  SD38941  Eriogonum nudum var. auriculatum Edith A. Purer 1933-8-25 5522 San Mateo Along roadside, Spring Valley Lakes Comment
  SEINET11938129  Eriogonum nudum var. auriculatum Unknown 1933-1 10521 San Mateo Spring Valley Lakes Comment
  CAS-BOT-BC304069  Eriophyllum confertiflorum Elsie Zeile 1909-5-20 s.n. San Mateo Burlingame 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-BC304073  Eriophyllum confertiflorum Fred Hemphill 1973-4-22 769 San Mateo San Carlos. N of Malabar Rd and Melendry Dr 207 Comment
  RSA218034  Eriophyllum confertiflorum Elizabeth McClintock, Walter Knight, Irja Knight, Baki Kasapligil 1967-7-18 s.n. San Mateo Near old quarry in Colma Canyon Comment
  RSA675661  Eriophyllum confertiflorum L. S. Rose 1950-5-20 50142 San Mateo Emerald Lake region, hills w. of Redwood City. 244 Comment
  LA203569  Eriophyllum confertiflorum var. confertiflorum Lewis S. Rose; 1933-5-17 33176 San Mateo Redwood City Comment
  RSA116762  Eriophyllum lanatum var. arachnoideum Josephine Randall 1907-6-29 68 San Mateo Santa Cruz Peninsula, King's Mountain Road. Comment
  UC306665  Eriophyllum latilobum A. D. E. Elmer 1903-6-1 4897 San Mateo San Mateo Comment
  CAS-BOT-BC301982  Eriophyllum staechadifolium Robt. T. Orr 1961-6-27 s.n. San Mateo Ano [Ano] Nuevo Island Comment
  CHSC334  Eriophyllum staechadifolium J. Turner 1930-5-2 San Mateo Moss Beach. Comment
  JEPS34470  Eriophyllum staechadifolium L. R. Heckard and Rimo Bacigalupi 1963-7-2 1359 San Mateo trail to (nw slope) Montara Peak (above old county road) 304 Comment
  RSA134232  Eriophyllum staechadifolium John H. Thomas 1949-10-16 1151 San Mateo Along sandstone bluffs, just north of outlet of San Gregorio Creek Comment
  RSA17884  Eriophyllum staechadifolium C. B. Wolf 1927-6-29 s.n. San Mateo Pescadero. Comment
  CDA5404  Eriophyllum staechadifolium var. artemisiifolium T. R. Haig 1959-6-22 2639 San Mateo Half Moon Bay. 0 Comment
  JROH2607  Erodium cicutarium John Hunter Thomas 1980-4-10 19880 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Searsville Lab. Comment
  JROH5893  Erodium cicutarium Ruth Porter 2002-3-23 95463 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH2609  Erodium moschatum John Rawlings 2013-4-30 1174 San Mateo Jasper Ridge Biological Preserve, Stanford University. Rd. B vicinity of Dennis Martin site. 79 Comment
  UC174154  Eryngium armatum Katharine Brandegee June, 1905 San Mateo Moss Beach Comment
  JROH241  Eryngium jepsonii John H. Thomas 1977-4-28 18563 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH244  Eryngium jepsonii John Hunter Thomas 1992-6-8 25368 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH237  Eryngium jepsonii H. J. Dengler 1968-6-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; in low spot by trail in East Serpentine Comment
  SEINET5549532  Erysimum capitatum H. S. Gentry 1931-1 7 San Mateo Collected 1.5 miles west of San Mateo, Half-moon Bay road. Comment
  UC1034903  Erysimum capitatum G. B. and R. P. Rossbach 1938-6-12 860 San Mateo La Honda Grove Coast Range 121 Comment
  CAS-BOT-BC54845  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1938-4-3 806 San Mateo Crests and steep upper slopes of the San Bruno Hills. 365 Comment
  CAS-BOT-BC54847  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-3-26 900 a and 900b ripe pods San Mateo 2.5 miles north of Montara near Devil's Slide. Comment
  CAS-BOT-BC54854  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-4-2 906 a fl. 906b fr. San Mateo Fifield Ridge, just above San Mateo Creek and north of Pilarcitos Lake. 243 Comment
  CAS-BOT-BC54863  Erysimum franciscanum G. B. Rossbach 1940-4-23 925 San Mateo About 1 mile inland, Montara Mountains, south of San Pedro Valley and northwest of Peak Mountain. 121 Comment
  CAS-BOT-BC54876  Erysimum franciscanum C. F. Baker 1902-3-22 342 San Mateo Crystal Spring Lakes. Comment
  CAS-BOT-BC54884  Erysimum franciscanum James Newman 1951-4-24 12 San Mateo Chrystal Springs Reservoir. 152 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
  CAS-BOT-BC54891  Erysimum franciscanum Vernal L. Yadon 1968-4-5 s.n. San Mateo Just south of Ano Nuevo Point. Comment
  JEPS90459  Erysimum franciscanum Dean W. Taylor 1988-3-30 9484 San Mateo northern slope of s.e. ridge San Bruno Mt. (near ridgecrest, right-of-way of eastern-most set of PG&E high-voltage powerlines crossing the mt.); Santa Cruz Mts., San Francisco South 7 1/2' Quad. 237 Comment
  RSA101865  Erysimum franciscanum G. B. Rossbach 1939-6-4 915 San Mateo West slope Buriburi Ridge, between Crystal Springs and San Andreas Lakes 122 Comment
  UC1034730  Erysimum franciscanum G. B. and R. P. Rossbach 1939-5-12 912 San Mateo steep gravelly slope of headland above sea Pedro Point Comment
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Nov 23 2007
  UC1034934  Erysimum franciscanum G. B. and R. P. Rossbach 1939-3 905 a&b San Mateo creek ravine below Crystal Springs Lake; San Mateo Cr. 60 Comment
  UC1034943  Erysimum franciscanum G. B. and R. P. Rossbach 1938-4-3 807 San Mateo moist ravine in upper slope of hills San Bruno Hills Comment
  UC10561  Erysimum franciscanum J. Burtt Davy 1895-4-20 1035 San Mateo Lake San Andreas Comment
  CAS-BOT-BC403531  Eschscholzia californica Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  CHSC22755  Eschscholzia californica Robert A. Schlising 1962-2-24 2083 San Mateo the California Coastal Ranges. Roadside, along Cabrillo Hwy (No 1) .7 mi N of county line. Comment
  CAS-BOT-BC403556  Eschscholzia californica Brandegee 1890-5-1 K San Mateo San Gregorio Comment
  CAS-BOT-BC403557  Eschscholzia californica Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mt. Cable Ravine Comment
  OBI69919  Eucalyptus globulus Jenn Yost and Matt Ritter, Matt Ritter 8-Apr 65 San Mateo Exit 27 on 280, Farm Hill rd, Woodside Comment
  CAS-BOT-BC202744  Euonymus occidentalis Roxana Stinchfield 1914-3-1 s.n. San Mateo Above Corte Madera, Santa Cruz Mts. Comment
  RSA100720  Euonymus occidentalis A. D. E. Elmer 1903-1 4317 San Mateo Butano Creek Comment
  RSA116733  Euonymus occidentalis W. R. Dudley 1895-6-6 s.n. San Mateo Along Pescadero Creek, near Iverson. Comment
  UC18052  Euonymus occidentalis var. occidentalis F. T. Bioletti 1893-6-22 San Mateo Pilarcitos Canyon Comment
  UC306743  Euonymus occidentalis var. occidentalis A. D. E. Elmer 1903-1 4317 San Mateo Butano Creek Comment
  RSA15292  Euphorbia crenulata C. B. Wolf 1927-4-3 260 San Mateo 1 mi. west of Summit of La Honda grade, Santa Cruz Mts. Comment
  UCSC000450  Euphorbia crenulata H. S. Yates 1935-5-8 5211 San Mateo 1.5 mi. S. Mindego Hill Santa Cruz 335 Comment
  JROH1949  Euphorbia maculata Carol Zabel 2005-8-10 55 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road near entrance to large parking lot near field station Comment
  CDA19205  Euphorbia oblongata D. Pendleton 2001-4-3 PDR 064453 San Mateo San Francisco Peninusla; Along Sandhill Rd, next to Jasper Ridge Biological Reserve, Portola Valley. 0 Comment
  CDA19846  Euphorbia oblongata D. Pendleton 2002-4-25 PDR 065843 San Mateo San Francisco Bay Area; Sandhill Rd, 0.25 mi N of Portola Rd, Woodside. 0 Comment
  UC1536887  Eurybia radulina G. H. True Jr. 1937-7-31 829 San Mateo near, (Alpine Road near Skyline Blvd.) Skyline Blvd. 182 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
  CAS-BOT-BC278285  Festuca californica James McMurphy 1906-5-20 s.n. San Mateo Road to Kings Mt. Comment
  JEPS21674  Festuca californica James McMurphy 1906-5-20 San Mateo road to Kings Mt. Comment
  JROH5177  Festuca californica John H. Thomas 1967-5-12 12866 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA6292  Festuca californica var. californica D. D. Keck 1932-5-11 1499 San Mateo Above Woodside on La Honda Road, east slope of Santa Cruz Mountains Comment
  CAS-BOT-BC282497  Festuca elmeri Peter H. Raven 1950-6-3 2252 San Mateo Woods around San Andreas Lake 121 Comment
  JROH5179  Festuca elmeri John Rawlings 2005-5-11 1010 San Mateo Jasper Ridge Biological Preserve, Stanford University; between Trail 7 and Bird Trail, about 100 yards east of Hillside lab 151 Comment
  RSA191941  Festuca idahoensis R. F. Thorne, P. Everett 1963-6-9 32228 San Mateo On top of San Bruno Mountain on Kamchatka Point near the TV tower 335 Comment
  JROH5479  Festuca microstachys Duncan M. Porter 1960-4-18 646 San Mateo Jasper Ridge Biological Preserve, Stanford University. Meadow near crest of N-facing slope above Webb Ranch. Comment
  CAS-BOT-BC278859  Festuca occidentalis W. R. Dudley 1895-6-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Pescadero Creek Comment
  CAS-BOT-BC278862  Festuca occidentalis W. R. Dudley 1895-6-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Pescadero Creek Comment
  CAS-BOT-BC278863  Festuca occidentalis W. R. Dudley 1896-4-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Near La Honda, Summit Comment
  JROH5715  Festuca occidentalis Volney Rattan 21 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville. Comment
  CAS-BOT-BC279051  Festuca rubra Dean Wm. Taylor 1988-4-8 9508 San Mateo Santa Cruz Mountains. San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest. Right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain 237 Comment
  RSA140620  Ficus carica John H. Thomas 1960-6-25 8795 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street. 8 Comment
  SD37687  Fragaria chiloensis Edith A. Purer 1933-5-14 3605 San Mateo Pescadero Comment
  UC203052  Fragaria chiloensis A. D. E. Elmer Apr 1903 4799 San Mateo San Pedro Comment
  CAS-BOT-BC437032  Fragaria chiloensis W. R. Dudley 1900-3-18 s.n. San Mateo San Pedro Valley near beach, Santa Cruz Peninsula Comment
  CAS-BOT-BC437033  Fragaria chiloensis Robert Robertson 1954-4-17 79 San Mateo North of Moss Beach (Montara) 9 Comment
  JROH3667  Fragaria vesca John Hunter Thomas 1981-4-21 20461 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1127972  Fragaria vesca H. S. Yates 1935-2-3 5006 San Mateo 0.5 mi se Pigeon Pt.; Santa Cruz Quad. 30 Comment
  SEINET11915234  Fragaria vesca subsp. californica L. S. Gill 1930-1 s.n. San Mateo Kuig Mt Comment
  CAS-BOT-BC166910  Frangula californica Peter Rubtzoff 1975-10-24 8428 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; (tributary of East Fork Colma Creek). Comment
  CAS-BOT-BC52674  Frangula californica subsp. californica James Newman 1951-6-5 96 San Mateo Searsville Lake Comment
  JROH3576  Frangula californica subsp. tomentella John Hunter Thomas 1981-5-25 20632 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET7883472 Image available Franseria bipinnatifida Lewis S. Rose 1938-1 38226 San Mateo El Granada alt. 10 ft. 3 Comment
  POM130871  Fraxinus latifolia C. F. Baker 1903-6-30 3355 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC130132  Fritillaria affinis Roxana S. Ferris 1921-3-21 2121 San Mateo [Ano] Ano Nuevo Pt. Comment
  CAS-BOT-BC130133  Fritillaria affinis A. D. E. Elmer 1903-5-1 5045 San Mateo Portola Comment
  JROH4684  Fritillaria affinis John H. Thomas 1971-5-30 15973 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM196512  Fritillaria affinis Lucile Roush 1917-3-31 s.n. San Mateo Santa Cruz Mountain peninsula; Sierra Morena Comment
  CAS-BOT-BC130211  Fritillaria agrestis Roxana S. Ferris 1921-3-21 2120 San Mateo Nears Years Point Comment
  JEPS61962  Fritillaria biflora var. ineziana Inez Smith 1914-3-12 San Mateo San Mateo Comment
  SEINET3886766  Fritillaria lanceolata Lois R. O'Brien 1963-3-9 85 San Mateo San Bruno Mountains, on Radio Road 3 miles from Estrada Way.; 0 213 Comment
  CAS-BOT-BC130382  Fritillaria liliacea Marion Gallagher 1978-2-11 s.n. San Mateo Farm Hills school site, just east of Interstate 280 on Farm Hill Road route to Redwood City 158 Comment
  CAS-BOT-BC130383  Fritillaria liliacea Lewis S. Rose 1933-4-2 33049 San Mateo Redwood City Comment
  RSA289961  Fritillaria liliacea I. Smith 1915-3-15 s.n. San Mateo Hillsboro Comment
  SJSU115  Fritillaria liliacea Thelma Silva 1931-3-8 San Mateo Spring Valley, head of Pilarcitos Creek Comment
  UC843895  Fritillaria liliacea Lewis S. Rose 1941-3-7 41008 San Mateo w of Redwood City (Emerald Lake); Emerald Lake 152 Comment
  UCR248734  Fumaria capreolata Peter Rubtzoff, B. Anderson 1988-4-12 9900 San Mateo San Bruno Mountain, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction; NW part of the area, near old Guadalupe Road between Bog Trail and Saddle Trail junction 213 Comment
  RSA195511  Galium aparine John H. Thomas 1966-4-22 11566 San Mateo Jasper Ridge Biological Experimental Area. About 5 miles SW of Palo Alto. Comment
  SEINET12285509  Galium californicum Unknown 1933-1 10379 San Mateo White House Creek Comment
  JEPS27349  Galium californicum subsp. californicum Rimo Bacigalupi with L. R. Heckard and Jim Roof 1961-4-24 7610 San Mateo just below rocky spur due north of true summit (directly below and ne of KQED radio power station); San Bruno Mountain 342 Comment
  UC188989  Galium californicum subsp. californicum Michener and Bioletti June 1893 San Mateo Lake Pilarcitos Comment
  JEPS35285  Galium murale John H. Thomas 1961-4-29 9177 San Mateo about 5 mi sw Palo Alto; Jasper Ridge Biological Experimental Area, Jasper Ridge Comment
  JROH3787  Galium murale John H. Thomas 1961-4-8 9074 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3789  Galium murale John H. Thomas 1963-4-13 10032 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville end of lake near the riders shack. Comment
  JROH3792  Galium murale John H. Thomas 1968-3-17 14189 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA100976  Galium porrigens G. Oberlander 1949-7-30 292 San Mateo Cahill Ridge. San Francisco Watershed Reserve. Comment
  CAS-BOT-BC303467  Gamochaeta ustulata John Thomas Howell 1926-4-24 1921 San Mateo Daly City Comment
  JROH5574  Gamochaeta ustulata John H. Thomas 1962-5-31 9896 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of the ridge Comment
  CAS-BOT-BC303466  Gamochaeta ustulata Elizabeth McClintock; Philip Wheeler 1967-6-11 s.n. San Mateo Radio Rd, San Bruno Mt Comment
  POM222795  Garrya elliptica K. L. Dole 1909-2-27 s.n. San Mateo Jasper Ridge. 183 Comment
  CAS-BOT-BC278666  Gastridium phleoides C. F. Leitholt 1894-7-30 s.n. San Mateo Santa Cruz Mountain Peninsula. La Honda 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-BC219146  Genista monspessulana Elizabeth McClintock; Paul Reeberg 1988-6-7 s.n. San Mateo above the intersection of San Bruno Avenue and Annis Comment
  CAS-BOT-BC219147  Genista monspessulana Elizabeth McClintock; Philip Wheeler 1967-6-11 s.n. San Mateo San Bruno Mountain. Radio Road in the Eucalyptus area. Comment
  CHSC23145  Genista monspessulana Robert A. Schlising 1962-2-24 2082 San Mateo California Coast Range. On dry roadbank near La Honda. Comment
  JROH2610  Geranium dissectum John H. Thomas 1966-4-24 11577 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2614  Geranium dissectum John H. Thomas 1973-4-14 16555 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC909020  Gilia achilleifolia subsp. achilleifolia Herbert L. Mason 1927-4-23 3677 San Mateo summit of road between La Honda and Pescadero Creek; summit of road between La Honda and Pescadero Creek Comment
  JROH3152  Gilia achilleifolia subsp. multicaulis John H. Thomas 1967-4-28 12722 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA128903  Gilia achilleifolia subsp. multicaulis Harry A. Dutton 1900-4-19 A. San Mateo Santa Cruz Peninsula Comment
  JROH3168  Gilia clivorum John Hunter Thomas 1991-5-2 25010 San Mateo Jasper Ridge Biological Preserve, Stanford University; near exclosure Comment
  CAS-BOT-BC303682  Glebionis coronaria Dean Wm. Taylor 1988-4-8 9516 San Mateo Santa Cruz Mts. San Bruno Mt, N slope of SE ridge of the mountain, near the ridgecrest. Right-of-way of E-most set of PG&E high-voltage powerlines crossing the mt 237 Comment
  CAS-BOT-BC303683  Glebionis coronaria Robert S. Jr. Cox 1946-8-10 s.n. San Mateo Half Moon Bay 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
  CAS-BOT-BC303825  Gnaphalium John H. Thomas 1965-4-29 10612 San Mateo San Bruno Mt in N part of county 396 Comment
  RSA3894  Gnaphalium chilense I. L. Wiggins 1929-7-4 3792 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach Comment
  SEINET11849566  Gnaphalium ramosissimum E. A. Purer 1933-1 5420 San Mateo near Belmont Comment
  JEPS67910  Gratiola ebracteata L. R. Heckard and J. H. Thomas 1972-4-16 2893 San Mateo along Old Canada Road (private) ca 1 1/2 mi s Pulgas Water Temple ((sw of Upper Crystal Springs Reservoir)); sw of Upper Crystal Springs Reservoir 121 Comment
  RSA201473  Grindelia camporum J. T. Howell 1964-12-6 41032 San Mateo Near Southern Pacific RR station, Millbrae. Comment
  CAS-BOT-BC304525  Grindelia hirsutula Alice Eastwood 1912-6-2 216 San Mateo Granada Comment
  CAS-BOT-BC304534  Grindelia hirsutula John Thomas Howell 1924-10-26 724 San Mateo Moss Beach Comment
  CAS-BOT-BC304538  Grindelia hirsutula John Thomas Howell 1933-5-26 11348 San Mateo Crystal Springs Lake Comment
  POM359076  Grindelia hirsutula L. S. Rose 1948-11-29 48243 San Mateo Mills Field. Comment
  SD39801  Grindelia hirsutula Edith A. Purer 1933-7-27 5369 San Mateo Sand dunes, two miles south of Pigeon Point. Comment
  UC32136  Grindelia hirsutula J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Pilarcitos Canyon; Pilarcitos Lake, Pilarcitos Canyon Comment
  CAS-BOT-BC304511  Grindelia hirsutula Robert Robertson 1954-4-14 77 San Mateo N.W. of Palo Alto Yacht Club 3 Comment
  SEINET5709439 Image available Grindelia stricta Lowell E. Urbatsch 1972-1 1095 San Mateo Low area near coast along Hwy 1. Comment
  OBI49183  Grindelia stricta var. angustifolia Lewis S. Rose 1938-8-18 38229 San Mateo Brisbane 2 Comment
  SJSU16022  Hainardia cylindrica John Rawlings, Toni Corelli 2016-5-13 1793 San Mateo Fairway Dr. access path to Mori Point. USGS Montara Mountain 7.5 Minute (1:24,000 Scale) 34 Comment
  CAS-BOT-BC306532  Helenium bigelovii A. D. E. Elmer 1903-7-1 4968 San Mateo San Mateo Comment
  UC407000  Helenium puberulum W. R. Dudley 1895-6-14 San Mateo near Searsville; San Francisquito Creek Comment
  CAS-BOT-BC309532  Helenium puberulum David D. Keck 1934-7-7 2940 San Mateo South of the mouth of Tunitas Creek Comment
  POM54388  Helenium puberulum A. D. E. Elmer 1903-07 4968 San Mateo San Mateo Comment
  JROH860  Helianthella californica var. californica John Hunter Thomas 1988-5-3 24444 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  CAS-BOT-BC305340  Helianthella castanea Philip Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  SD39702  Heliotropium curassavicum Edith A. Purer 1933-7-27 5396 San Mateo 2.0 miles south of Pigeon Point. Comment
  JROH1169  Helminthotheca echioides John H. Thomas 1974-10-26 17629 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU3591  Helminthotheca echioides A. I. Wilson 1967-9-18 2 San Mateo by W side Los Trancos Cr c. midway between Portola Valley & Palo Alto 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
  CAS-BOT-BC314936  Hemizonia congesta subsp. luzulifolia C. F. Baker 1903-6-30 3350 San Mateo Crystal Springs Comment
  JEPS30897  Hemizonia congesta subsp. luzulifolia J. H. Thomas 1958-6-11 7228 San Mateo about 4.3 mi due e Belmont (near Crystal Springs Reservoir) 91 Comment
  JROH870  Hemizonia congesta subsp. luzulifolia John Hunter Thomas 1981-5-8 20567 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG28541  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1914-7-15 5140 San Mateo Crystal Springs Comment
  UC134605  Hemizonia congesta subsp. luzulifolia C. F. Baker 1908-6-30 3350 San Mateo Crystal Springs Comment
  UC193423  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-13 10225 San Mateo 2.2 km e Crystal Springs Lake (from along road n of creek and up side of hill to n); San Mateo Creek Comment
  UC193425  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-13 10225 San Mateo 2.2 km e Crystal Springs Reservoir; San Mateo Creek 38 Comment
  UCD133004  Hemizonia congesta subsp. luzulifolia Lewis S. Rose 1964-9-5 64070 San Mateo Emerald Lake, west of Redwood City. 243 Comment
  CAS-BOT-BC314937  Hemizonia congesta subsp. luzulifolia Cherie Wetzel 1969-7-8 923 San Mateo Near Canada College, Redwood City just off of Farm Hill Blvd. Comment
  CAS-BOT-BC314942  Hemizonia congesta subsp. luzulifolia H. M. Hall 1915-8-28 10113 San Mateo East side of Crystal Springs Lake 121 Comment
  CAS-BOT-BC314943  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-13 10225 San Mateo Near Crystal Springs Lake Comment
  CAS-BOT-BC314951  Hemizonia congesta subsp. luzulifolia Alice Eastwood 1919-9-1 s.n. San Mateo San Mateo Comment
  SEINET7076100  Hemizonia corymbosa A. G. Vestal 1955-5-31 s.n. San Mateo Near Pebble Beach off Route 1. (NAD 27; 37.2369? deg. North Latitude, 122.4153? deg. West Longitude, UTM Zone 10, 551863mE, 4121109mN). [GPS Coordinate: WGS84/NAD83]. Comment
  POM216539  Hemizonia corymbosa subsp. corymbosa D. D. Keck 1931-10-5 1295 San Mateo Skyline Blvd, 1.5 miles S of Half Moon Bay road, summit of Cahil Ridge. 450 Comment
  RSA276347  Hemizonia corymbosa subsp. corymbosa Jane Turner, Francis M. Ball 1962-7-7 1080 San Mateo Highway 1, ca. 10 miles N of Santa Cruz County line. Comment
  POM360311  Hemizonia luzulifolia L. S. Rose 1964-9-5 64070 San Mateo Emerald Lake, W of Redwood City. 244 Comment
  SEINET11848429  Hemizonia luzulifolia L. S. Rose 1937-1 37662 San Mateo Emerald Lake, W of Redwood City 183 Comment
  POM223640  Hemizonia luzulifolia subsp. rudis L. S. Rose 1935-9-21 35652 San Mateo Redwood City. Comment
  RSA136195  Hemizonia pungens subsp. maritima John H. Thomas 1954-5-28 4231 San Mateo Redwood City; near intersection of Bayshore and Main Street 0 Comment
  UCSB18565  Heracleum maximum Schulte, John 1963-4-28 San Mateo Sausal Creek, Jasper Ridge Area, 3 miles SW of Stanford, between Santa Clara Valley and main front of Santa Cruz Mountains 121 Comment
  JEPS83137  Hesperevax sparsiflora var. brevifolia Lewis S. Rose 1970-5-3 70036 San Mateo w San Mateo; Black Mountain, Skyline Blvd. 121 Comment
  CAS-BOT-BC310243  Hesperevax sparsiflora var. sparsiflora Margaret A. Barry 1937-5-15 126 San Mateo Coal Mine Ridge Comment
  JROH887  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1978-4-22 19109 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC176214  Hesperolinon congestum Hester R. Davis 1920-6-1 179 San Mateo Back of Redwood City Comment
  RSA112350  Hesperolinon congestum L. R. Abrams 1910-5-7 s.n. San Mateo Crystal Springs Lake. Comment
  UC1187062  Hesperolinon congestum David D. Keck 1940-5-15 5035 San Mateo e side Upper Crystal Springs Lake 100 Comment
  UC725506  Hesperolinon congestum A. A. Heller 1907-5-28 8572 San Mateo near Crystal Springs Comment
  JROH2923  Hesperolinon micranthum John H. Thomas 1963-5-15 10093 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2925  Hesperolinon micranthum John H. Thomas 1967-5-31 12943 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI12527  Hesperolinon micranthum Lewis S. Rose 1956-6-11 56093 San Mateo Emerald Lake, Hills W of Redwood city 183 Comment
  CAS-BOT-BC148470  Heteromeles arbutifolia Walter Knight; Irja Knight 1963-6-24 s.n. San Mateo Quarry 4 - San Bruno Mountain Comment
  JROH5895  Heteromeles arbutifolia M. Ray 1982-3-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail leading to the west side of the dam. Comment
  RSA0074498  Heterotheca camphorata L. R. Abrams 1901-09 2228 San Mateo Menlo Park. Comment
  CAS-BOT-BC310762  Heterotheca sessiliflora subsp. echioides E. A. McGregor 1906-9-23 s.n. San Mateo Corte de Madera Comment
  CAS-BOT-BC310763  Heterotheca sessiliflora subsp. echioides W. R. Dudley 1895-9-21 s.n. San Mateo Santa Cruz Mountain Peninsula. By road near Bay back of Menlo Park Comment
  UC662649  Heuchera micrantha var. erubescens L. S. Rose 1941-7-2 41289 San Mateo Kings Mountain 600 Comment
  CAS-BOT-BC424428  Heuchera pilosissima Ira L. Wiggins 1925-5-24 1742 San Mateo Along county road from Pescadero to Pebble Beach just before coming to the artichoke lands of the American Produce Co. Comment
  UCR121585  Hieracium argutum George K. Helmkamp, E. A. Helmkamp 1999-6-28 4964 San Mateo Coast Range; Santa Cruz Mtns, Sky Londa; junction of Calif. Hwy 84 and Calif. Hwy 35, 5 mi south of central Redwood City 457 Comment
  CAS-BOT-BC55434  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
  CAS-BOT-BC55439  Hirschfeldia incana Saichi Kawahara 1968-6-15 440 San Mateo Pescadero Beach, 150 yards south of mouth of Pescadero Creek, Highway 1. 4 Comment
  JROH5208  Holcus lanatus John Hunter Thomas 1977-6-16 18804 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM222903  Holodiscus discolor S. S. Berry 1909-05 s.n. San Mateo Los Trancos Creek. 46 Comment
  RSA101035  Holodiscus discolor G. Oberlander 1949-5-21 183 San Mateo Sawyer Ridge, San Francisco Watershed Reserve. Comment
  UC311487  Holodiscus discolor A. D. E. Elmer Jun 1903 4274 San Mateo San Mateo Comment
  CAS-BOT-BC150059  Holodiscus discolor var. discolor Robert Robertson 1954-5-1 110 San Mateo By road 2 miles east of Pescadero 30 Comment
  CAS-BOT-BC150062  Holodiscus discolor var. discolor Elizabeth McClintock 1965-6-13 s.n. San Mateo Colma Canyon Comment
  JROH3689  Holodiscus discolor var. discolor John H. Thomas 1971-5-30 15982 San Mateo Jasper Ridge Biological Preserve, Stanford University. Woods near dam Comment
  CAS-BOT-BC150063  Holodiscus discolor var. discolor Elizabeth McClintock 1965-3-28 s.n. San Mateo In Trillium Gulch Comment
  POM205104  Hordeum brachyantherum E. B. Copeland 1903-6-10 3304 San Mateo Montara Point. Comment
  CAS-BOT-BC284676  Hordeum brachyantherum subsp. brachyantherum Peter H. Raven 1950-6-3 2214 San Mateo Along Millbrae Ave., Millbrae 60 Comment
  CAS-BOT-BC284677  Hordeum brachyantherum subsp. brachyantherum Dr. E. B. Copeland 1903-6-10 3304 San Mateo Montara Point Comment
  CAS-BOT-BC284680  Hordeum brachyantherum subsp. brachyantherum David D. Keck 1932-5-6 1465 San Mateo Belmont Comment
  JROH5223  Hordeum brachyantherum subsp. californicum John Hunter Thomas 1978-5-16 19217 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5225  Hordeum brachyantherum subsp. californicum John Hunter Thomas 1979-5-22 19575 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD85535  Hordeum brachyantherum subsp. californicum Lewis S. Rose 1956-5-7 56070 San Mateo Skyline Blvd. W of San Mateo. 182 Comment
  SEINET10598962  Hordeum californicum LeRoy R. Abrams Abrams 1651 San Mateo Cooley Landing. Comment
  RSA0115578  Hordeum hystrix L. S. Rose 1953-4-17 53015 San Mateo Redwood City, along Bayshore Highway 3 Comment
  CAS-BOT-BC285150  Hordeum marinum subsp. gussoneanum H. A. Borthwick 1920-5-18 151 San Mateo Santa Cruz Mountain Peninsula. Woodside Comment
  JROH5671  Hordeum murinum subsp. leporinum John Rawlings 2013-4-10 1129 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Where the brick path ends at the visitor parking lot of the Sun Field Station. 119 Comment
  RSA254233  Hordeum murinum subsp. leporinum Robert A. Norris 1975-3-31 2293 San Mateo Near Crocker Avenue, San Bruno Mountains. Comment
  CAS-BOT-BC271361  Hordeum vulgare W. R. Dudley 1896-4-4 s.n. San Mateo Near Crystal Springs, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC536143  Horkelia californica L. R. Abrams 1926-5-26 11219 San Mateo San Bruno Hills near Daly City Comment
  CAS-BOT-BC143921  Horkelia cuneata var. sericea Phillip C. Wheeler 1965-5-11 s.n. San Mateo Pig Ranch Ravine Comment
  CAS-BOT-BC144011  Horkelia marinensis James McMurphy 1909-6-13 s.n. San Mateo Hills back of Colma Comment
  SJSU2301  Hosackia gracilis C. W. Sharsmith 1950-4-16 6630 San Mateo near Pescadero Point, Pescadero Comment
  SD37817  Hosackia stipularis Edith A. Purer 1932-7-18 4004 San Mateo King's Mountain, mountainside Comment
  CDA20055  Hydrocotyle ranunculoides L. Kuwahara 2002-10-9 PDR 064651 San Mateo San Francisco Bay Area; Pomponio Ranch, 3300 Pomponio Crk Rd, San Gregorio. 0 Comment
  CDA5496  Hydrocotyle sibthorpioides T. C. Fuller 1970-5-12 19531 San Mateo Emily Brown property, 3045 Ralston Avenue, Burlingame. 0 Comment
  RSA18359  Hypericum androsaemum C. B. Wolf 1929-5-25 3729 San Mateo Pebble Beach, S of Pescadero. Comment
  RSA784606  Hypericum androsaemum Peter Rubtzoff 1976-6-30 8704 San Mateo San Bruno Mountains:Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction. Westernmost part of the area on a slope across fence. Comment
  JEPS105544  Hypericum canariense Vern Yadon s. n. San Mateo S of Garzas Creek and N of Ano Nuevo; E side of Hwy 1 Comment
Read comments
Oct 31 2021
  CAS-BOT-BC311393  Hypochaeris glabra John H. Thomas 1955-4-6 4843 San Mateo East facing slope of San Bruno Mountain just north of South San Francisco 91 Comment
  CAS-BOT-BC311480  Hypochaeris radicata Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  POM55230  Hypochaeris radicata A. D. E. Elmer 1903-04 4861 San Mateo Lake San Andreas Comment
  SEINET11259798 Image available Hypochaeris radicata K. Thorne, J. Chandler 1986-7-25 4918 San Mateo Half Moon Bay, 2 miles south of Moss Beach at Dune Beach. Comment
  UC1069667  Hypochaeris radicata G. E. Sindel 1935-7-30 316 San Mateo 2.5 mi nnw Pescadero; Santa Cruz Quad. Comment
  UC1598591  Hypochaeris radicata A. D. E. Elmer 1903-4-1 4861 San Mateo Lake San Andreas Comment
  JROH5615  Iris douglasiana John Rawlings 2014-4-11 1218 San Mateo Jasper Ridge Biological Preserve, Stanford University; confluence of Bear and San Francisquito creeks just east of the terminus of Trail 20 growing at edge of the steep bank of San Francisquito Creek. 82 Comment
  POM290987  Iris douglasiana Lyman Benson 1930-5-3 2105 San Mateo Above Woodside, Mt. Range: Santa Cruz 244 Comment
  UCR198043  Iris douglasiana S. Seiki, Patricia Carter 1998-5-2 02 San Mateo Montara Mountain, city of Pacifica, c. 2.4 mi from San Pedro Valley along Devil's Slide heading west Comment
  POM196487  Iris douglasiana W. R. Dudley 1903-5-21 s.n. San Mateo Santa Cruz Peninsula, upper Pescadero Beach 152 Comment
  UCSB18695  Iris douglasiana Hutchinson, Sandra 1964-3-24 San Mateo Crystal Springs Lake; Sawyer Camp Road; about 0.6 mile from Skyline Blvd; entrance off of Millbrae Ave 106 Comment
  CAS-BOT-BC57729  Isoetes howellii W. R. Dudley 1910-5-26 s.n. San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC57733  Isoetes howellii L. R. Abrams 1923-4-19 10108 San Mateo Alameda de los Pulgas back of Menlo Park Comment
  CAS-BOT-BC112611  Isolepis cernua John Hunter Thomas 1963-7-19 10181 A San Mateo Ano Nuevo Point. Comment
  CAS-BOT-BC112625  Isolepis cernua E. B. Copeland 1903-6-15 3315 San Mateo Montara Point Comment
  JEPS63782  Isolepis cernua William S. Cooper 1919-7-22 204 San Mateo Ano Nuevo Pt Comment
  UC1100777  Isolepis cernua Malcolm A. Nobs, S. Galen Smith 1949-8-25 1565 San Mateo marshes at Sharp Park; marshes at Sharp Park Comment
  CAS-BOT-BC112615  Isolepis cernua George Thomas Oberlander 1949-7-10 273 San Mateo Marsh, Upper Crystal Spr. Lake. Comment
  SEINET4170785 Image available Isolepis cernua Malcolm A. Nobs, S. Galen Smith 1949-8-15 1565 San Mateo Marshes at sharp Park Comment
  SEINET7589110 Image available Isolepis cernua E. B. Copeland 1903-6-15 3315 San Mateo Montara Point. Comment
  POM312326  Jaumea carnosa Malcolm A. Nobs, S. Galen Smith 1949-8-26 1598 San Mateo Marshes at the mouth of Pescadero Creek. Comment
  CAS-BOT-BC102322  Juglans hindsii D. E. Breedlove 1973-9-26 35553 San Mateo Pescadero Creek County Park 365 Comment
  CAS-BOT-BC102323  Juglans hindsii Ed Holm; Field Biol. Class, San Mateo High School 1984-7-24 s.n. San Mateo In creekbed of San Mateo Creek next to Polhemus Rd. just before it joins Crystal Springs Rd. and about 100 yds. below Comment
  CAS-BOT-BC352225  Juncus arcticus var. balticus Peter Rubtzoff; Elizabeth McClintock 1989-8-31 10044 San Mateo San Bruno Mountains, near Willow Pond (located near Saddle Trail), ca. 0.15 miles north of junction with Old Guadalupe Trail. Comment
  RSA796693  Juncus bufonius Peter Rubtzoff 1977-6-21 9066 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH4493  Juncus occidentalis John Hunter Thomas 1987-5-19 24302 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4495  Juncus occidentalis John Hunter Thomas 1987-5-26 24314 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR279841  Juncus phaeocephalus Peter Rubtzoff 1978-8-17 9260 San Mateo San Francisco Bay Region, San Bruno Mountain; 'saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction 220 Comment
  CAS-BOT-BC210152  Juncus phaeocephalus Peter Rubtzoff 1979-7-26 9297 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC210153  Juncus phaeocephalus Peter Rubtzoff 1978-7-8 9227 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
  RSA783798  Juncus phaeocephalus var. paniculatus Peter Rubtzoff 1980-8-4 9563 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  RSA783800  Juncus phaeocephalus var. paniculatus Peter Rubtzoff 1978-7-8 9226 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH4518  Juncus xiphioides John Hunter Thomas 1979-5-18 19557 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM190453  Koeleria macrantha D. D. Keck 1932-5-6 1476 San Mateo Above Millbrae Highlands Comment
  RSA6412  Koeleria macrantha D. D. Keck 1932-5-6 1476 San Mateo Above Millbrae Highlands Comment
  CAS-BOT-BC273734  Koeleria pyramidata Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Ridge above Buckeye Canyon Comment
  CAS-BOT-BC273738  Koeleria pyramidata Ned Cahill 1974-4-30 226 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC272319  Lachnagrostis filiformis John Thomas Howell 1954-6-1 s.n. San Mateo Pulgas Water Temple, near southern end of Lower Crystal Springs Reservoir Comment
  CAS-BOT-BC340470  Lactuca saligna John H. Thomas 1969-10-19 15481 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC340704  Lactuca virosa Ira L. Wiggins 1979-8-26 22244 San Mateo Alley between Central and Woodland Avenues, running from Pope to Gilbert Streets, Menlo Park Comment
  JROH961  Lagophylla ramosissima John H. Thomas 1969-5-28 15087 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH964  Lagophylla ramosissima John Hunter Thomas 1983-6-2 22331 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH968  Lagophylla ramosissima John Hunter Thomas 1986-6-7 24084 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC339056  Lasthenia californica Alice Eastwood 1937-7-25 18886 San Mateo Pebble Beach, Pescadero Comment
  POM55213  Lasthenia californica A. D. E. Elmer 1903-04 4507 San Mateo San Bruno Hills Comment
  CAS-BOT-BC339057  Lasthenia californica Lewis S. Rose 1956-5-28 56081 San Mateo Skyline Blvd w. of San Mateo 182 Comment
  CAS-BOT-BC339076  Lasthenia californica L. R. Abrams 1918-4-30 7056 San Mateo Bayshore Road, San Bruno Hills Comment
  CAS-BOT-BC339077  Lasthenia californica George Oberlander 1949-4-17 78 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  JROH976  Lasthenia californica subsp. californica John Hunter Thomas 1980-5-8 19955 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH978  Lasthenia californica subsp. californica John Hunter Thomas 1981-5-8 20563 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1073373  Lasthenia californica subsp. californica George B. Rossbach 1955-3-26 517 San Mateo n of radio tower; San Bruno Mountain 335 Comment
  UC483354  Lasthenia californica subsp. californica W. R. Dudley 1897-5-1 San Mateo south San Francisco Comment
  CAS-BOT-BC324425  Lasthenia californica subsp. macrantha Kenton L. Chambers 1956-6-20 1045 San Mateo Pebble Beach near Pescadero Point, on bluff between Highway 1 and the ocean Comment
  SJSU11826  Lasthenia californica subsp. macrantha P. D. Kinzli 1964-4-17 73 San Mateo by outlet of Pescadero Cr into ocean Comment
  RSA116648  Lasthenia glaberrima W. R. Dudley 1906-5-22 s.n. San Mateo Coal Mine Ridge. Comment
  JEPS24276  Lasthenia glabrata subsp. glabrata J. H. Thomas 1954-4-2 3793 San Mateo 1.5 mi e of center Redwood City Comment
  SEINET3147835  Lasthenia glabrata subsp. glabrata E. L. Greene 1886-5-11 sn San Mateo Belmont Comment
  RSA262209  Lasthenia glabrata subsp. glabrata John H. Thomas 1971-5-2 15794 San Mateo Near intersection of Canada and Edgewater roads; about 3 miles westward from Redwood City. 152 Comment
  CAS-BOT-BC355540  Lasthenia glabrata var. glabrata John H. Thomas 1954-4-2 3792 San Mateo 1.5 miles east of center of Redwood City 0 Comment
  JEPS28873  Lasthenia gracilis V. F. Hesse 1962-7-19 3166 San Mateo 6 Comment
  CAS-BOT-BC368184  Lasthenia minor John H. Thomas 1967-5-7 12834 San Mateo Pigeon Point. Altitude about sea level. Near Lighthouse. Comment
  CAS-BOT-BC368192  Lasthenia minor K. L. Chambers 1956-6-20 1047 San Mateo Pebble Beach near Pescadero Point, between Hwy 1 and the ocean, on bluff near parking area. Comment
  CAS-BOT-BC368188  Lasthenia minor Kenton L. Chambers 1956-6-20 1044 San Mateo Mouth of Pescadero Creek, on bluff between Hwy. 1 and the ocean; around parking area Comment
  UCSC003528  Lasthenia minor Randall Morgan 2001-5-9 3728 San Mateo Bean Hollow State Beach parking area, San Mateo County Comment
  POM19355  Lathyrus vestitus subsp. vestitus C. F. Baker 1902-5-10 801 San Mateo Kings Mountain. Comment
  RSA152255  Lathyrus vestitus subsp. vestitus I. L. Wiggins 1925-04 1661 San Mateo On Kings Mtn Road three fourths of a mile above Woodside. Comment
  RSA15256  Lathyrus vestitus subsp. vestitus Carl B. Wolf 1927-2-19 218 San Mateo East side of Kings Mountain. Comment
  CDA9326  Lathyrus vestitus var. vestitus M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 878 San Mateo Pacifica: San Pedro Valley County Park, at Brooks Creek Trail trailhead, near visitor center's parking lot. 74 Comment
  UCR121561  Lathyrus vestitus var. vestitus George K. Helmkamp, E. A. Helmkamp 1999-6-28 4972 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  RSA434911  Lavatera cretica J. Doty 1969-3-24 580 San Mateo North side of Embarcadero Rd, just west of western boundary of Bysbee Marshlands Wildlife Preserve; Menlo Park. 2 Comment
  CAS-BOT-BC323176  Layia chrysanthemoides J McMurphy 1909-6-13 s.n. San Mateo San Bruno HIlls Comment
  CAS-BOT-BC323177  Layia chrysanthemoides C. F. Baker no date on label 1894 San Mateo San Bruno Hills Comment
  UC89164  Layia chrysanthemoides K. Brandegee 1885-5-1 San Mateo Millbrae Comment
Read comments
Sep 9 2011
  CAS-BOT-BC323156  Layia chrysanthemoides David D. Keck 1932-5-6 1488 San Mateo 4 miles W of Burlingame on Skyline Boulevard. Comment
  CAS-BOT-BC323157  Layia chrysanthemoides David D. Keck 1932-5-6 1488 San Mateo 4 miles W of Burlingame on Skyline Boulevard. Comment
  CAS-BOT-BC323180  Layia chrysanthemoides K. Curran 1885-4-1 s.n. San Mateo Millbrae Comment
  POM298220  Layia chrysanthemoides D. D. Keck 1932-4-29 1450 San Mateo Redwood City. Comment
  UC30645  Layia gaillardioides J. Burtt Davy 1895-4-20 1081 San Mateo San Mateo Creek Comment
  UC34543  Layia gaillardioides unknown 1888-4-12 San Mateo San Pedro Ranch Comment
  UC89182  Layia gaillardioides Alice Eastwood 1899-5-2 San Mateo near Pt. San Pedro Comment
  CAS-BOT-BC327505  Layia hieracioides J. H. Thomas 1961-5-7 9307 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  RSA152270  Layia hieracioides John H. Thomas 1961-5-7 9307 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  SD39841  Layia hieracioides Edith A. Purer 1933-7-27 5397 San Mateo Two miles south of Pigeon Point Comment
  UC913102  Layia hieracioides David D. Keck and Wm. M. Hiesey 1940-6-1 5166 San Mateo opposite n end of Lake San Andreas; Skyline Boulevard 135 Comment
  CAS-BOT-BC327470  Layia hieracioides John H. Thomas 1967-5-7 12825 San Mateo Sunset Beach State Park, about 4.5 miles SW of Watsonville. Comment
  CAS-BOT-BC327486  Layia hieracioides George Oberlander 1949-9-25 368 San Mateo San Francisco Watershed Reserve. Sawyer Ridge. Comment
  UC468859  Layia hieracioides Katharine Brandegee 1908-5-1 San Mateo San Bruno Hills Comment
  CAS-BOT-BC382091  Layia platyglossa Elizabeth McClintock 1978-4-11 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  CAS-BOT-BC382215  Layia platyglossa David D. Keck 1933-5-11 2305 San Mateo Skyline Blvd., east of Salada, northern San Mateo County 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
  JROH5750  Layia platyglossa L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Serpentine grassland, top of Jasper Ridge Comment
  POM88088  Layia platyglossa subsp. platyglossa L. R. Abrams 1902-5-11 2442 San Mateo Crystal Springs Lake. Comment
  JEPS415  Lemna gibba W. L. Jepson 1923-10-18 10261 San Mateo w of Colma (near ocean) Comment
  CAS-BOT-BC527267  Lemna minuta Ira L. Wiggins 1980-9-1 22271 San Mateo Pool in San Francisquito Creek, ca. 250 m. upstream from Pope Street Bridge, Menlo Park Comment
  CAS-BOT-BC221522  Lepechinia calycina George Oberlander 1940-5-31 142 San Mateo San Francisco Watershed Reserve. Sweeney Ridge Comment
  CAS-BOT-BC221523  Lepechinia calycina Walter Knight; Irja Knight 1964-5-19 s.n. San Mateo San Bruno Mountain. Crocker Hills Comment
  CAS-BOT-BC221540  Lepechinia calycina Fred Hemphill 1973-4-15 717 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  JROH2784  Lepechinia calycina John H. Thomas 1955-5-6 5015 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC191843  Lepechinia calycina Edward Lee Greene 1887-6-12 San Mateo San Mateo Comment
  SEINET12277320  Lepechinia calycina Unknown 1933-1 10430 San Mateo Alpine Road Comment
  CAS-BOT-BC89136  Lepidium didymum H. L. Mason 1921-5-29 s.n. San Mateo Pebble Beach near Pescadero. 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
  JROH1540  Lepidium nitidum John H. Thomas 1955-5-6 4988 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1544  Lepidium nitidum John H. Thomas 1973-3-11 16479 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG29869  Lepidium oxycarpum D. D. Keck 1932-3-24 1401 San Mateo Redwood City, at the border of San Francisco Bay Comment
  JROH1560  Lepidium strictum John Hunter Thomas 1978-4-25 19154 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5597  Lepidium strictum John Rawlings 2011-4-24 1086 San Mateo Jasper Ridge Biological Preserve, Stanford University; parking area for Ranger Bath on Rd. L. 108 Comment
  CAS-BOT-BC226539  Leptosiphon acicularis H. A. Dutton 1900-4-17 s.n. San Mateo Santa Cruz Peninsula. On Jasper near S. border Woodside Comment
  CAS-BOT-BC226606  Leptosiphon ambiguus H. A. Dutton 1900-3-25 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  CAS-BOT-BC226607  Leptosiphon ambiguus L. R. A. 1902-5-4 2415 San Mateo Woodside Comment
  CAS-BOT-BC226724  Leptosiphon androsaceus Adele Lewis Grant 1917-5-6 936 San Mateo Pescadero Comment
  JEPS58097  Leptosiphon androsaceus Adele Lewis Grant 936 San Mateo near Pescadero; Pebble Beach 3 Comment
  JROH3173  Leptosiphon androsaceus John Hunter Thomas 1985-5-22 23671 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5663  Leptosiphon androsaceus Herb Dengler 1970-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; East serpentine Comment
  JROH5924  Leptosiphon androsaceus Herb Dengler 1970-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; East serpentine Comment
  RSA12467  Leptosiphon androsaceus Harry A. Dutton 1900-4-3 5827 San Mateo Woodside serpentine [?] Comment
  RSA18357  Leptosiphon androsaceus C. B. Wolf 1929-5-25 3731 San Mateo N of Pigeon Pt, San Mateo 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
  CAS-BOT-BC226728  Leptosiphon latisectus A. D. E. Elmer 1903-4-1 4746 San Mateo Cemeteries Comment
  SD27821  Leptosiphon parviflorus Carl B. Wolf 1929-4-24 3656 San Mateo Southwest end of Jasper Ridge, back of Stanford University. 152 Comment
  JROH3196  Leptosiphon pygmaeus subsp. continentalis Toni Corelli 2005-6-1 291 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11 144 Comment
  RSA0012848  Leptospermum laevigatum John H. Thomas 1961-5-14 9375 San Mateo Serpentine road bank and outcropping just north of dam on San Mateo Creek. 122 Comment
  CAS-BOT-BC324055  Lessingia arachnoidea John Thomas Howell 1927-4-15 2325 San Mateo Crystal Springs Lake 213 Comment
  SEINET1782116  Lessingia bakeri Carl F. Baker 1902-10-20 1834 San Mateo Searsville. Comment
  SJSU15429  Lessingia germanorum Toni Corelli 2011-9-14 720 b San Mateo Northeast of Hillside Park, above houses 107 Comment
  CAS-BOT-BC324176  Lessingia hololeuca W. R. Dudley 1897-11-15 s.n. San Mateo Los Troncos Road above Saloon Comment
  CAS-BOT-BC324177  Lessingia hololeuca Ned Cahill 1974-8-26 370 San Mateo near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City Comment
  CAS-BOT-BC324180  Lessingia hololeuca Ned Cahill 1974-8-26 372 San Mateo near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  JROH1036  Lessingia hololeuca Carol Zabel 1989-8-27 35 San Mateo Jasper Ridge Biological Preserve, Stanford University. This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  UC905072  Leucanthemum vulgare John Thomas Howell 1949-7-4 24356 San Mateo n of Millbrae; Skyline Blvd. Comment
  CAS-BOT-BC272324  Leymus mollis W. R. Bentley 1957-5-11 82 San Mateo Along State Highway #1 about 2 miles south of Pescadero Comment
  CAS-BOT-BC272185  Leymus triticoides Elizabeth McClintock; Paul Reeberg 1988-10-31 s.n. San Mateo South side of Crocker Industrial Park just east of West Powerline, San Bruno Mountains 60 Comment
  RSA195563  Leymus triticoides John H. Thomas 1963-5-20 10113 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  UC306542  Ligusticum apiifolium A. D. E. Elmer June 1903 4966 San Mateo San Mateo Comment
  POM132683  Ligusticum apiifolium A. D. E. Elmer 1903-06 4803 San Mateo San Mateo Comment
  CAS-BOT-BC451670  Lilaea scilloides W. R. Dudley 1900-3-18 s.n. San Mateo Santa Cruz Peninsula. Pond on Jersey Farm Road West of Baden Comment
  SEINET11763376  Lilaea scilloides H. L. Mason 1922-1 s.n. San Mateo Pigeon Pt Comment
  HSC97165  Limnanthes macounii T. W. Henrich 2004-4-21 San Mateo Moss Beach; cultivated field on Cabrillo Ranch property, adjacent to Hwy 1, and immediately east of Half Moon Bay Airport. Comment
  CAS-BOT-BC238364  Limosella aquatica W. R. Dudley 1909-10-4 s.n. San Mateo The Santa Cruz Mountain Peninsula. W. twin-pond, northern part of county Comment
  JEPS58174  Linanthus ambiguus W. L. Jepson 1914-3-22 5731 San Mateo vicinity San Francisco Bay; Redwood City Comment
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Oct 24 2021
  UC1174507  Linanthus ambiguus Le Roy Abrams 1902-5-4 2415 San Mateo Woodside Comment
  UC907992  Linanthus androsaceus J. M. Webber 1926-4-29 San Mateo Merced Lake Comment
  CAS-BOT-BC123068  Linanthus croceus Alice Eastwood 1899-5-2 s.n. San Mateo Near Pt. San Pedro (Blenheim) Comment
  CDA982  Linanthus liniflorus D. G. Kelch 2002-5-6 2 .011 San Mateo Crystal Springs Reservoir. Comment
Read comments
Oct 24 2021
  UC23693  Linanthus liniflorus Alice Eastwood May 1896 San Mateo Crystal Springs Comment
  UC73618  Linanthus liniflorus Milo S. Baker 1904-5-15 San Mateo near Burlingame Comment
  UCSC005674  Linanthus parviflorus Randall Morgan 1994-4-2 2172 San Mateo Jasper Ridge Comment
  SEINET12279094  Linanthus pharnaceoides M. T. Doutt 1931-1 418 San Mateo Skyline Blvd Comment
  CHSC57088  Linum bienne Steven Triano 1988-5-24 193 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  CDA29905  Lithocarpus densiflorus D. G. Kelch 2009-6-9 9 .408 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
  CAS-BOT-BC36070  Lithocarpus densiflorus var. densiflorus W. R. Dudley 1893-12-3 s.n. San Mateo Bear Gulch Road Comment
  CAS-BOT-BC430766  Lithophragma affine Evelina Cannon 1895-3-23 s.n. San Mateo South San Francisco Comment
  CAS-BOT-BC430767  Lithophragma affine Volney Rattan 1883-4-1 s.n. San Mateo Milbrae Comment
  UCD102692  Lithophragma affine E. Jacqueline Garcia 1986-4-19 s.n. San Mateo San Bruno Mountains, 0.25 mile from Summit Loop trailhead on Guadeloupe Canyon Road. Comment
  JEPS23933  Lithophragma heterophyllum Volney Rattan Apr 1883 San Mateo Millbrae Comment
  JROH3897  Lithophragma heterophyllum John Hunter Thomas 1985-4-22 23546 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM142569  Lithophragma heterophyllum C. F. Baker 1902-4-6 651 San Mateo Crystal Springs Lake. Comment
  JROH3899  Lithophragma heterophyllum John Hunter Thomas 1986-4-22 23973 San Mateo Jasper Ridge Biological Preserve, Stanford University. Wooded slope above east arm of Searsville Lake Comment
  JEPS71241  Lolium multiflorum William S. Cooper 1919-7-22 213 San Mateo Ano Nuevo Pt. Comment
  UC75212  Lomatium caruifolium var. caruifolium unknown 1902-4-8 2751 San Mateo San Andreas Lake Comment
  SEINET196566  Lomatium dasycarpum Pete Rowen 1950-4-16 89 San Mateo Colma Canyon San Brumo Mts. Comment
  CDA34371  Lomatium utriculatum E. Finley 1993-3-3 s.n. San Mateo Edgewood Park. 0 Comment
  JROH1652  Lonicera hispidula John H. Thomas 1970-7-5 15664 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS85576  Lonicera hispidula var. vacillans Craig Dremann 1986-8-30 323 San Mateo e La Honda (along Cal. Highway 84 (Woodside-La Honda Road), mile marker 6.68, 150 ft w between road and creek) Comment
  POM284223  Lonicera hispidula var. vacillans Lyman Benson 1930-5-3 2098 San Mateo Above Woodside, Mt. Range: Santa Cruz 244 Comment
  POM46744  Lonicera hispidula var. vacillans Edward L. Greene 1901-9-2 1533 San Mateo Crystal Springs Lake. Comment
  UCR51650  Lonicera involucrata R. Ascanio 1988-4-17 s.n. San Mateo E on Gazo Creek Road off Hwy 1, c. 2 mi. north of Ano Nuevo State Reserve 85 Comment
  CAS-BOT-BC241542  Lonicera involucrata var. ledebourii Walter Knight; Irja Knight 1965-4-4 s.n. San Mateo San Bruno Mountains. Bitter Cherry Ravine about 60% of the way to the summit Comment
  CAS-BOT-BC241543  Lonicera involucrata var. ledebourii W. R. Dudley June s.n. San Mateo San Francisquito Cr., Palo Alto Ranch Comment
  CAS-BOT-BC243960  Lonicera involucrata var. ledebourii Alice Eastwood 1914-3-12 3756 San Mateo San Bruno Hills Comment
  UCSC000720  Lonicera involucrata var. ledebourii G. E. Sindel 1935-8-7 325 San Mateo 0.75 mile S. of Pomponio Creek Pomponio Creek - Santa Cruz 107 Comment
  CAS-BOT-BC198555  Lotus Dorothy Sutliffe 1934-10-12 s.n. San Mateo On Ocean Shore Higheay 4 miles south of San Gregorio Comment
  UCR248348  Lotus corniculatus Peter Rubtzoff 1987-7-31 9821 San Mateo South San Francisco, Best Products Company parking lot on east side of Gellert Blvd. north of Westborough Blvd. intersection 84 Comment
  SEINET957265  Lotus corniculatus Jane A. Reese 1966-1 131 San Mateo Whiskey hill road, 1 mile from junction with Woodside road. 152 Comment
  UC80969  Lotus formosissimus C. F. Baker 1902-5-1 689 San Mateo Crystal Springs Lake Comment
  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
  JEPS55888  Lotus scoparius Dr. L. M. Newlon 1921-7-30 248 San Mateo Salada Comment
  POM276674  Lotus scoparius var. scoparius Lyman Benson 1928-12-15 832 San Mateo La Honda 213 Comment
  RSA128441  Lotus scoparius var. scoparius Peter H. Raven 1949-6-12 827 San Mateo Belmont Comment
  HSC23955  Lotus unifoliolatus var. unifoliolatus Mary Katherine Wicksten 1971-6-22 92 San Mateo Huddart Park by horse ring Comment
  RSA159410  Lotus wrangelianus John H. Thomas 1961-5-14 9384 San Mateo Just north of dam on San Mateo Creek. 122 Comment
  UC81109  Lotus wrangelianus C. F. Baker 1902-5-1 776 San Mateo Crystal Springs Lake Comment
  JROH3081  Ludwigia peploides subsp. peploides M. Whitley 1990-5-28 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; by the floats Comment
  UC311390  Lupinus A. D. E. Elmer May 1903 4827 San Mateo Portola Comment
  CAS-BOT-BC198275  Lupinus W. R. Dudley 1900-5-19 s.n. San Mateo 1/2 mile west of summit of La Honda Stage Road - Santa Cruz Mountain Peninsula Comment
  POM10879  Lupinus affinis C. F. Baker 1902-4-6 473 San Mateo Crystal Springs Lake. Comment
  SEINET5766860 Image available Lupinus affinis Dunn, Brown 1946-1 2542 San Mateo 3.7 miles northeast of La Honda on the southeast side of the Hwy; Sann Francisco Peninsula on Hwy from Woodside to la Honda Comment
  UC82049  Lupinus albifrons C. F. Baker 1902-3 341 San Mateo Crystal Springs Lake Comment
  SEINET10488409  Lupinus albifrons Charles F. Baker 1903-4-6 Baker 1889 San Mateo San bruno hills, tufts of many stems on a woody base Comment
  CAS-BOT-BC195792  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-22 48523 San Mateo Highway 5 - junction Pagemill Road, 0.4 miles north Comment
  CAS-BOT-BC195793  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-22 48497 San Mateo Highway 5 - junction Pagemill Road, 0.5 miles north Comment
  CAS-BOT-BC195817  Lupinus albifrons var. albifrons Josephine D. Randall 1907-7-23 199 San Mateo Near Crystal Springs Lake 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-BC195816  Lupinus albifrons var. albifrons W. R. Dudley 1894-4-21 s.n. San Mateo Ravine of San Mateo Creek 3 miles above town 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-BC196121  Lupinus albifrons var. collinus Charles Piper Smith 1908-5-31 1437 San Mateo S. San Francisco Comment
  JEPS64928  Lupinus albifrons var. collinus Ivar Tidestrom 1894-3-22 San Mateo Comment
  UCD106267  Lupinus albifrons var. collinus A. A. Heller 1907-4-25 8462 San Mateo San Bruno Hills. Comment
  SEINET10970192  Lupinus albifrons var. collinus Mcclintock 1963-2-16 MCCLINTOCK s.n. San Mateo Below top of mountain in vicinity of radio station. San bruno mountain Comment
  CAS-BOT-BC196435  Lupinus arboreus Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo In Colma Canyon Comment
  CHSC903  Lupinus arboreus A. Koopman 1929-5-9 San Mateo Moss Beach. 9 Comment
  UC1073375  Lupinus arboreus George B. Rossbach 1955-5-29 318 San Mateo Ano Nuevo Point; sw San Mateo County Comment
  UC1129343  Lupinus arboreus A. E. Wieslander 1928-9-26 34 San Mateo 2 mi s San Gregorio (Plot #13); Santa Cruz Quad., s of San Gregorio Comment
  SEINET10488472  Lupinus arboreus Marcus E. Jones 1881-6-24 Jones s.n. San Mateo Comment
  SEINET11548753  Lupinus arboreus Univ. of Calif. Bot. Gard. 1974-1 list 17 - 43 San Mateo San Mateo Co.;;;; Comment
  UCSC007761  Lupinus arboreus Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  RSA176779  Lupinus arboreus var. arboreus John H. Thomas 1963-5-20 10109 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  UC73188  Lupinus bicolor Harley P. Chandler 1901-3-14 794 San Mateo Colma Comment
  RSA178649  Lupinus bicolor subsp. pipersmithii James I. McMurphy 1911-4-22 s.n. San Mateo Stanford Park, near Stanford University. Comment
  SEINET10484980  Lupinus bicolor var. umbellatus Walter Knight, Irja Knight 1965-3-28 Knight 975 San Mateo From flower garden adjacent to april brook. In grassy area. Comment
  SEINET11071791 Image available Lupinus collinus A. A. Heller 1907-4-25 8462 San Mateo San Bruno Hills Comment
  SEINET10485250  Lupinus densiflorus var. palustris Charles Piper Smith 1947-4-25 Smith 47178 San Mateo Belmont, skyline, w of vanderlaan summit. Comment
  JROH5630  Lupinus formosus var. formosus John Rawlings 2014-5-9 1228 San Mateo Jasper Ridge Biological Preserve, Stanford University; about 20 meters west of Road C and 20 meters south of Trail 18. 127 Comment
  SEINET10961856 Image available Lupinus latifolius Charles F. Baker Baker 470 San Mateo Crystal Springs Lake. Comment
  JROH2123  Lupinus latifolius var. latifolius John H. Thomas 1977-4-29 18575 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC15897  Lupinus latifolius var. latifolius Alice Eastwood May 1896 San Mateo Crystal Springs Comment
  JROH2125  Lupinus luteolus H. & R. Dengler 1958-6-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; 200' due north of point where Corte Madera Cr. enters the preserve Comment
  UC201917  Lupinus microcarpus var. densiflorus A. D. E. Elmer June, 1903 4413 San Mateo Lake San Andreas Comment
  CAS-BOT-BC8455  Lupinus microcarpus var. densiflorus W. R. Dudley 1894-3-26 s.n. San Mateo West of San Mateo Comment
  POM10635  Lupinus polycarpus C. F. Baker 1903-4-8 1931 San Mateo Crystal Springs Lake. Comment
  JEPS81168  Lupinus polyphyllus Edward Lee with H. L. Mason 1935-6-16 1529 San Mateo between Ano Nuevo and Franklin Point; between Ano Nuevo and Franklin Point Comment
  SEINET10936614  Lupinus succulentus var. succulentus Smith 1948-4-20 Smith 48109 San Mateo Hwy 1, san pedro point. North grade. Comment by d.b. Dunn: this is smith's Variety laynae, which i believe is depauperate due to the marine exposure. Comment
  SD60214  Lupinus vallicola subsp. apricus L. R. Abrams 1926-4-19 San Mateo Junction of Los Trancos & San Francisquito Creek Comment
  RSA178676  Lupinus vallicola subsp. apricus L. R. Abrams 1926-4-19 s.n. San Mateo Junction of Los Trancos and San Francisquito Creek. Comment
  CHSC59538  Lupinus variicolor Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  SEINET7076091 Image available Lupinus variicolor A. G. Vestal 1955-5-31 s.n. San Mateo Near Pebble Beach off Route 1. (NAD 27; 37.2369? deg. North Latitude, 122.4153? deg. West Longitude, UTM Zone 10, 551863mE, 4121109mN). [GPS Coordinate: WGS84/NAD83]. Comment
  SEINET10489089  Lupinus variicolor Elizabeth M. McClintock 1963-6-9 McClintock 134 San Mateo San bruno mtn. Exposed slopes below top of mtn. Comment
  SEINET10489109  Lupinus variicolor Mcclintock 1963-6-23 MCCLINTOCK s.n. San Mateo San bruno mtn. Lower part of colma canyon. Comment
  JROH4532  Luzula comosa var. comosa John Hunter Thomas 1983-2-21 21282 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC106625  Luzula subsessilis Peter F. Zika 2010-5-1 24790 San Mateo Above SE shore of Alpine Pond, Santa Cruz Mountains, San Francisco Bay (SnFrB) 660 Comment
  RSA0011334  Lythrum hyssopifolia John H. Thomas 1954-5-28 4242 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 30 Comment
  SD39672  Lythrum hyssopifolia Edith A. Purer 1933-7-27 5366 San Mateo 2.0 miles south of Pigeon Point. Comment
  RSA0011331  Lythrum hyssopifolia Josephine Randall 1907-6-29 244 San Mateo Kings Mt. Road; Santa Cruz Peninsula. Comment
  SD49787  Madia capitata J. H. Thomas 1959-8-16 8064 San Mateo 2.0 miles soputhwest of Pescadero. 60 Comment
  CAS-BOT-BC343901  Madia elegans George Oberlander 1949-9-25 369 San Mateo San Francisco Watershed Reserve. North of San Andreas L. Comment
  CAS-BOT-BC343905  Madia elegans Barrett Anderson 1986-8-12 3258 San Mateo Skyline Blvd just N of Crystal Springs Rd. 135 Comment
  CAS-BOT-BC343912  Madia elegans David D. Keck 1932-6-18 1979 San Mateo Skyline Blvd., at Langley Hill. (S.W. of Stanford University) 600 Comment
  CAS-BOT-BC343913  Madia elegans David D. Keck 1932-6-18 1979 San Mateo Skyline Blvd., at Langley Hill. (S.W. of Stanford University) 600 Comment
  CAS-BOT-BC344491  Madia exigua D. E. Breedlove 1974-5-13 36227 San Mateo Slopes San Pedro Valley Park, Pacifica 152 Comment
  CAS-BOT-BC344495  Madia exigua James I. McMurphy 1907-5-19 s.n. San Mateo Coal Mine Ridge Comment
  JROH1047  Madia exigua John H. Thomas 1975-5-26 17903 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1056  Madia exigua John Hunter Thomas 1981-5-25 20636 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC343332  Madia gracilis David D. Keck 1932-5-25 1780 San Mateo Hills two miles west of Belmont Comment
  JROH1067  Madia gracilis John H. Thomas 1958-5-10 7142 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1069  Madia gracilis Oz Garton 1968-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1087  Madia gracilis John Hunter Thomas 1986-5-1 23997 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1092  Madia gracilis John Hunter Thomas 1988-5-12 24455 San Mateo Jasper Ridge Biological Preserve, Stanford University; by old quarry below dam Comment
  RSA3891  Madia gracilis I. L. Wiggins 1929-7-4 3780 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  SEINET8734423 Image available Madia madioides L. S. Rose 1941-1 41287 San Mateo Kings Mountain, 540 Comment
  CAS-BOT-BC345122  Madia sativa Ira L. Wiggins 1929-7-4 3796 San Mateo Sea bluffs at Pescadero Beach Comment
  CAS-BOT-BC345140  Madia sativa John H. Thomas 1961-8-27 9695 San Mateo Colma. Open sandy field near intersection of El Camino Real and F Street 45 Comment
  CAS-BOT-BC353474  Madia sativa Peter Rubtzoff 1979-7-26 9300 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  JEPS40342  Madia sativa L. M. Newlon 1921-1-1 240 San Mateo from Salada to Mussel Rock Comment
  JROH1100  Madia sativa John H. Thomas 1971-8-7 16020 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR256296  Madia sativa Peter Rubtzoff 1979-7-26 9300 San Mateo 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, San Bruno Mountains 213 Comment
  CAS-BOT-BC345123  Madia sativa Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Quarry 4 Comment
  RSA190268  Madia sativa D. D. Keck 1930-10-15 988 San Mateo SW of Woodside 457 Comment
  CAS-BOT-BC512100  Maianthemum racemosum subsp. amplexicaule Everett O'Bannon; Nancy O'Bannon 1956-4-15 s.n. San Mateo Sawyer's Road, near Cystal Springs Lake above Burlingame and Millbrae Comment
  JROH4707  Maianthemum stellatum John H. Thomas 1977-4-21 18537 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4709  Maianthemum stellatum John Hunter Thomas 1977-6-16 18746 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4714  Maianthemum stellatum John Hunter Thomas 1985-4-22 23545 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC203907  Malacothamnus aboriginum George Oberlander 1949-7-10 258 San Mateo San Francisco Watershed Reserve. South end of Sawyer Ridge Comment
  RSA176727  Malacothamnus arcuatus John H. Thomas 1962-6-6 9906 San Mateo Jasper Ridge Biological Expermental Area, about 5 miles SW of Palo Alto; just above Searsville Lake. Comment
Read comments
Nov 5 2009
  RSA3086  Malacothamnus arcuatus Carl B. Wolf 1931-8-20 2328 San Mateo Los Trancos Creek, 2 miles back of Stanford University, near Schenkel s Camp. 91 Comment
  UC109094  Malacothamnus hallii Alice Eastwood 1891-10-27 San Mateo Hills back of Belmont Belmont Comment
  CAS-BOT-BC540128  Malus domestica Elizabeth McClintock; Paul Reedberg 1988-4-14 s.n. San Mateo 80 feet east of SBM park entrance, along north side of Guadalupe Canyon Parkway; San Bruno Mountains 213 Comment
  SEINET7247931  Malva arborea Bob Schmalzel 1974-1 s.n. San Mateo Growing along highway 1 200 yards from the Pacific Ocean 9 miles south of Half Moon Bay. 9 Comment
  UCD54555  Malva arborea Ellen Dean; Tom Starbuck, Margaret Starbuck 2005-10-16 2745 San Mateo Town of Miramar, N of Half Moon Bay. Along Mirada Rd. on coastal bluff overlooking beach. Comment
  CAS-BOT-BC206685  Malva assurgentiflora Walter Knight; Irja Knight 1963-10-7 334 San Mateo Hillside Blvd. near Cypress Hill Golf Course, San Bruno Mountain Comment
  CHSC57018  Malva parviflora Steven Triano 1988-5-24 188 San Mateo Ca 100 ft sw of Hwy. 1, 750 ft s of Gazos Creek and 2.4 mi s of Pigeon Point Light Station. 6 Comment
  JROH1898  Marah fabacea James Newman 1951-4-21 41 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  JROH1900  Marah fabacea John H. Thomas 1961-4-29 9195 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  RSA440955  Marah fabacea Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mts. overlooking Daly City near San Francisco. Comment
  UCR101645  Marah fabacea George K. Helmkamp, E. A. Helmkamp 1998-5-16 3740 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  UC1746100  Marah oregana Annetta Carter, Helen Sharsmith 1937-5-23 1319 San Mateo Just S of Crystal Springs Lake. Comment
  RSA441244  Marah oregana K. M. Stocking 1947-5-15 40 San Mateo E of Pescadero 1.5 miles. 46 Comment
  CAS-BOT-BC67843  Marsilea vestita Peter H. Raven 1950-6-3 2269 San Mateo San Andreas Lake 121 Comment
  JROH5783  Matricaria discoidea John Rawlings 2016-4-26 1758 San Mateo Jasper Ridge Biological Preserve, Stanford University. Rd E near Trail 13. 105 Comment
  POM176886  Meconella californica W. R. Dudley 1894-3-26 s.n. San Mateo San Mateo to Crystal Springs Reservoir, Santa Cruz Mountain Peninsula Comment
  UC306750  Meconella californica A. D. E. Elmer April 1903 4499 San Mateo San Mateo; toward Crystal Springs Lake Comment
  UC2049895  Medicago polymorpha H. W. Johansen 1958-5-18 32 San Mateo Jones Gulch, 5 miles S of La Honda Comment
  CAS-BOT-BC269446  Melica californica Phillip C. Wheeler 1965-5-18 s.n. San Mateo San Bruno Mountain. Base of the mountain near Olivet Cemetery Comment
  UCD87172  Melica californica Ogden C. Riddle 1941-4-6 74 San Mateo Near Half Moon Bay, Finney Ridge. 243 Comment
  JROH5300  Melica imperfecta D. D. Davis 1903-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. North slope on Searsville Ridge. Comment
  CAS-BOT-BC264240  Melica torreyana John H. Thomas 1961-5-14 9374 A San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek, San Francisco Watershed Reserve 152 Comment
  POM16744  Melilotus indicus A. D. E. Elmer 1903-06 4278 San Mateo Crystal Springs Lake. Comment
  UC2049893  Melilotus indicus H. W. Johansen 1955-4-23 80 San Mateo Crystal Springs Road, 2 miles W of San Mateo Comment
  CAS-BOT-BC257357  Melilotus indicus Peter Rubtzoff 1988-6-9 9923 San Mateo San Bruno Mountains, Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, along Old Guadalupe Road in the northwestern part of the Saddle area, east of Saddle Trail junction. Comment
  JROH2195  Melilotus indicus John Hunter Thomas 1983-5-23 22240 A San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack side & low-flow crossing Comment
  JROH2802  Melissa officinalis Carol Zabel 1989-8-7 21 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 13, half way from causeway bridge to Leonard's bridge, north side of trail Comment
  UCR177714  Mentha canadensis L. S. Rose 1936-9-13 36730 San Mateo Granada 2 Comment
  UC1244714  Mentha pulegium John H. Thomas 1959-8-22 8079 San Mateo about 5 mi sw Palo Alto (Jasper Ridge); Jasper Ridge 152 Comment
  CDA4874  Mercurialis annua T. C. Fuller 1967-8-23 16293 San Mateo Coastways Ranch, 0.2 mile east of the Coast Highway (Hwy 1), 0.2 mile north of the county line of Santa Cruz Co., 0 Comment
  CAS-BOT-BC438140  Mesembryanthemum nodiflorum William Anderson 1968-7-25 s.n. San Mateo At west approach of Dumbarton Bridge on south side of road. Comment
  UCD96996  Mesembryanthemum nodiflorum William Anderson 1968-7-25 s.n. San Mateo At west approach of Dumbarton Bridge on south side of road, San Jose. Comment
  CAS-BOT-BC428898  Micranthes californica James McMurphy 1902-3-22 s.n. San Mateo Above Portola Comment
  CAS-BOT-BC428899  Micranthes californica Ira L. Wiggins 1929-3-23 3369 San Mateo Road to Mud Lake, near Stanford University. Comment
  CAS-BOT-BC348570  Micropus californicus var. californicus John H. Thomas 1971-5-2 15843 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  JROH1117  Micropus californicus var. californicus Hester Bavis 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1119  Micropus californicus var. californicus John H. Thomas 1958-5-10 7152 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1122  Micropus californicus var. californicus John H. Thomas 1963-5-12 10085 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC348719  Microseris bigelovii Kenton L. Chambers 1956-6-20 1048 San Mateo Pebble Beach near Pescadero Point Comment
  SJSU15212  Microseris bigelovii Toni Corelli 2010-4-13 622 San Mateo Pigeon Point Light Station, north of light station, on edge of cliff west of Pigeon Point Road 6 Comment
  UCD68979  Microseris douglasii P. Rodriguez-Rojo 1997-3-27 San Mateo Jaspen Ridge. Serpentine annual grasslands. UTM: 10SEM4168 155 Comment
  CAS-BOT-BC349019  Microseris douglasii subsp. douglasii A. D. E. Elmer 1903-5-1 4721 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC349028  Microseris douglasii subsp. douglasii Ned Cahill 1974-4-29 202 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JEPS49070  Microseris douglasii subsp. douglasii Lewis S. Rose 1966-5-2 66037 B San Mateo w Redwood City; Emerald Lake 91 Comment
  JROH1147  Microseris douglasii subsp. douglasii John Hunter Thomas 1986-5-6 24014 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1149  Microseris douglasii subsp. douglasii John Hunter Thomas 1988-5-3 24438 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM87986  Microseris douglasii subsp. douglasii L. R. Abrams 1902-5-4 2418 San Mateo Woodside. 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
  CAS-BOT-BC349024  Microseris douglasii subsp. douglasii K. L. Chambers 1952-5-11 404 San Mateo 3.2 mi. s. of junction of Canada Road (from Woodside to Crystal Springs Lake), with Ralston Avenue (Belmont Road) Comment
  CAS-BOT-BC349035  Microseris douglasii subsp. douglasii Lewis S. Rose 1956-5-28 56079 A San Mateo Skyline Blvd w. of San Mateo 182 Comment
  CAS-BOT-BC349143  Microseris douglasii subsp. tenella Philip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Buckeye Canyon Comment
  POM53405  Microseris douglasii subsp. tenella C. F. Baker 1902-5-4 755 San Mateo Woodside. Comment
  CAS-BOT-BC349142  Microseris douglasii subsp. tenella Kenton L. Chambers 1953-3-28 431 San Mateo Bayshore Hwy. 1/2 mi. s. of junction with Harbor Blvd., Redwood City Comment
  CAS-BOT-BC349189  Microseris elegans R. E. Frenkel 1964-5-22 504 San Mateo SFWD, 0.3 mile north of Sawyer Ridge Road, on Portola Ridge Road 268 Comment
  CAS-BOT-BC349192  Microseris elegans R. E. Frenkel 1964-5-26 512 San Mateo On Portola Ridge Road, SFWD, 0.7 mile north of Sawyer Ridge Road 320 Comment
  SEINET10842027 Image available Microseris leucocarpha Charles F. Baker 1902-5-4 Baker 808 San Mateo Woodside. Comment
  UC2044060  Microseris paludosa Neal Kramer 2005-5-14 CR 440 San Mateo POST Cloverdale Ranch. North end of the Mesa approx. 0.4 mi east of Lake Lucerne. Comment
  JROH4076  Mimulus aurantiacus var. aurantiacus John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM222786  Mimulus aurantiacus var. aurantiacus S. S. Berry 1909-4-23 s.n. San Mateo Road near Los Francos Creek 61 Comment
  UC1080543  Mimulus aurantiacus var. aurantiacus S. S. Tillett and I. Sternback 1956-6-25 539 San Mateo along road into Portola State Park 396 Comment
  UCSC007764  Mimulus aurantiacus var. aurantiacus Becky Hendricks, Chris Lay 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  SEINET4678016  Mimulus guttatus K. Thorne, J. Chandler 1986-7-25 4939 San Mateo Half Moon Bay, 2 miles south of Moss Beach at Dune Beach.; 0 Comment
  CAS-BOT-BC388833  Minuartia douglasii Lewis S. Rose 1956-5-7 56067 San Mateo Skyline Blvd. w. of San Mateo 182 Comment
  CAS-BOT-BC388832  Minuartia douglasii Ned Cahill 1974-5-9 169 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CDA3325  Mirabilis jalapa W. Davis 1962-7-23 San Mateo San Bruno. 0 Comment
  CAS-BOT-BC214085  Monardella villosa Josephine D. Randall 1907-6-8 179 San Mateo Portola Valley, Santa Cruz Peninsula Comment
  CAS-BOT-BC214062  Monardella villosa W. R. Dudley 1894-7-7 s.n. San Mateo Bear Gulch Road, Santa Cruz Mountain Peninsula 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-BC214079  Monardella villosa Walter Knight 1964-9-14 847 San Mateo Peak Mt. in Montara Range Comment
  CAS-BOT-BC214081  Monardella villosa Cherie Wetzel 1969-7-8 920 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CHSC68000  Monardella villosa subsp. franciscana Alison Graff 1993-7-13 M- 52 San Mateo Devils Slide, in arroyos on inland side of Hwy. 1. Comment
  UC203048 Image available Monardella villosa subsp. franciscana A. D. E. Elmer July, 1903 4766 San Mateo San Pedro, San Mateo Co. Comment
  UC25530  Monardella villosa subsp. villosa J. Burtt Davy 1893-6-17 770 San Mateo Belmont South Coast Ranges Comment
  SEINET892710  Monardella villosa var. franciscana G. K. Helmkamp, E. A. Helmkamp 1999-1 4991 San Mateo Pescadero Crk. Watershed: Bean Hollow Rd. 0.3 miles S of Pescadero Rd. (SW of Pescadero). Slopes abov Butano Crk. (Pigeon Pt.) 60 Comment
  JROH1156  Monolopia gracilens Herb Dengler 1963-5-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC311167  Montia parvifolia A. D. E. Elmer May, 1903 4577 San Mateo Iverson's Place Comment
  SD27824  Montia verna Carl B. Wolf 1929-4-29 3661 San Mateo Santa Cruz Mts., 1 mi. no. of summit of La Honda grade on Skyline Blvd. Comment
  UC119712  Muilla maritima C. F. Baker 1902-3-30 423 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC508584  Muilla maritima C. F. Baker 1902-3-30 423 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC508588  Muilla maritima L. S. Rose 1927-3-25 s.n. San Mateo Crystal Springs Lake Comment
  RSA176826  Myosotis latifolia John H. Thomas 1961-5-5 9207 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  CAS-BOT-BC166663  Myosotis latifolia Peter Rubtzoff 1977-4-16 8949 San Mateo San Bruno Mountains. Comment
  RSA15200  Myrica californica Carl B. Wolf 1926-10-19 77 San Mateo West of summit of La Honda Grade, Santa Cruz Mountains. Comment
  SEINET12029232  Myrica californica W. Knight, Knight, I. 1982-1 4461 San Mateo From Tilden Botanic Garden,Berkeley. Orig. collected along Guadalupe Pkyway. E summit,San Bruno Mt Comment
  RSA176407  Myriophyllum aquaticum John H. Thomas 1964-10-2 10508 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Edge of Searsville Lake near Bridge. Comment
  CDA5310  Myriophyllum spicatum subsp. spicatum G. D. Barbe, Tom Palmer, M. Keffer, J. Reppas 1978-11-8 2471 San Mateo East shore of Lower Crystal Springs Reservoir, 0.8 km (0.5 mile) northwest of San Mateo Creek dam. 0 Comment
  CAS-BOT-BC260022  Nassella lepida W. R. Dudley 1900-3-17 s.n. San Mateo By road half way up S slope of Montara Mountain Comment
  CAS-BOT-BC260023  Nassella lepida John Thomas Howell 1952-5-28 28316 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC260236  Nassella pulchra John H. Thomas 1971-5-2 15869 F San Mateo Near intersection of Canada Road and Edgewater Road, about 3 miles W from Redwood City 152 Comment
  CAS-BOT-BC260237  Nassella pulchra H. A. Dutton 1900-2-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside Comment
  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
  JROH1572  Nasturtium officinale John Hunter Thomas 1978-7-2 19242 San Mateo Jasper Ridge Biological Preserve, Stanford University; on dam Comment
  RSA127725  Nasturtium officinale John H. Thomas 1959-7-8 8018 San Mateo Pescadero Beach. Comment
  POM226867  Navarretia mellita L. R. Abrams 1914-7-1 5224 San Mateo Searsville Lake. Comment
  JROH3212  Navarretia squarrosa John Hunter Thomas 1977-6-16 18778 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  POM65143  Navarretia squarrosa C. F. Baker 1903-6-30 3356 San Mateo Crystal Springs. Comment
  UC1537487  Navarretia squarrosa Gordon H. True Jr. 1936-6-14 506 San Mateo s of Salada Beach 365 Comment
  CAS-BOT-BC219490  Nemophila parviflora John Thomas Howell 1940-5-23 15517 San Mateo Stone Dam near Lake Pilarcitos Comment
  SEINET6966637  Nerium oleander R. A. Evers, Clara V. Evers 1975-8-24 115027 San Mateo Trailer Villa, Redwood City. Comment
  UCSC011284  Notholithocarpus densiflorus var. densiflorus Unknown 1972-5-31 s.n. San Mateo Example of herbivore damage Comment
  UCSC007766  Nuttallanthus texanus Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC140440  Oemleria cerasiformis E. G. Dudley 1904-3-3 43 San Mateo Portola Valley, Santa Cruz Mts. Comment
  UC311169  Oemleria cerasiformis A. D. E. Elmer Mar 1903 4579 San Mateo Woodside Comment
  JROH291  Oenanthe sarmentosa John Hunter Thomas 1989-6-13 24771 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12189806  Oenothera elata Unknown 1933-1 10375 San Mateo Boden Station, South san Francisco Comment
  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
  UC2061401  Oenothera elata subsp. hookeri H. W. Johansen 1958-5-18 23 San Mateo Coast Hwy 1, S of Pescadero Comment
  RSA303928  Oenothera elata subsp. hookeri Jim R. Shevock 1970-11-25 549 San Mateo Coastal Strand 8 Comment
  SD27768  Oenothera elata subsp. hookeri Carl B. Wolf 1927-6-29 564 San Mateo On coast, 3.0 miles south of San Gregorio. Comment
  SEINET5548756  Onagraceae H. S. Gentry 1931-1 85 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC502768  Orobanche bulbosa G. F. Ferris 1917-4-14 s.n. San Mateo Coal Mine Ridge Comment
  JEPS26313  Orobanche californica subsp. californica Wayne Roderick 1961-8-20 San Mateo Bean Hollow State Beach; below south entrance of San Mateo State Park, about 2 miles south of Pescadero turn-off. Comment
  JEPS86212  Orobanche californica subsp. californica L. R. Heckard Sep 1970 2463 San Mateo Ocean bluffs to south of South parking lot at Bean Hollow State Beach. Comment
  UC1076287  Orobanche californica subsp. californica Herbert L. Mason 1927-7-28 3983 San Mateo Pigeon Point. Comment
  UC124996  Orobanche californica subsp. californica W. A. Setchell 1908-11-1 San Mateo Farallone City. Comment
  SEINET8466936 Image available Orobanche grayana Tom Hensel 1973-7-10 267 San Mateo Pigeon Point Lighthouse, 8.5 mi N of San Mateo-Santa Cruz Co. line Comment
  JROH3088  Orobanche uniflora John H. Thomas 1968-5-3 14444 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC500318  Orobanche uniflora subsp. occidentalis W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Peninsula: Rocks above San Mateo Creek Comment
  CAS-BOT-BC238395  Orthocarpus James McMurphy 1909-5-25 s.n. San Mateo San Mateo Canyon Comment
  RSA130824  Orthocarpus faucibarbatus var. albidus W. R. Dudley 1896-4-17 s.n. San Mateo Near Pebble Beach, Pescadero. Comment
  POM15377  Orthocarpus floribundus A. D. E. Elmer 1903-04 4522 San Mateo South San Francisco. Comment
  SEINET12270154  Orthocarpus floribundus M. T. Doutt 1931-1 417 San Mateo Skyline Blvd, W of Hillbrae Comment
  JROH294  Osmorhiza berteroi John H. Thomas 1963-6-23 10168 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of ridge Comment
  JROH300  Osmorhiza berteroi John Hunter Thomas 1987-4-30 24216 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC1970  Osmorhiza chilensis A. Goekler 1929-5-11 San Mateo Moss Beach. Comment
  POM133304  Osmorhiza purpurea A. D. E. Elmer 1900-05 1982 San Mateo La Honda Comment
  UCR2998  Oxalis incarnata Wm. Horn Jr. 1963-4-7 630407- 01 San Mateo San Francisco Bay, Hillsborough, 2240 Redington Road 30 Comment
  RSA120752  Oxalis oregana S. S. Tillett, I. Sternback 1956-6-24 524 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  HSC16710  Oxalis oregana P. A. Murphy 1965-4-16 35 San Mateo 6 mi. from Half Moon Bay in Hatches Woods Comment
  JEPS121492  Oxalis pes-caprae Adam C. Schneider with C. Matt Guilliams 2013-3-9 41 San Mateo Crystal Springs Reservoir, Northern part of western margin of San Francisco Public Utilities Commission land. Comment
  UC463306  Oxalis pes-caprae L. R. Abrams and I. L. Wiggins 1930-11-13 176 San Mateo near Colma (fields along Skyline Blvd.) Comment
  POM177457  Oxalis pes-caprae L. R. Abrams, I. L. Wiggins 1930-11-13 176 San Mateo Along Skyline Blvd. near Colma Comment
  UCD88650  Parapholis incurva August L. Hormay 1932-5-29 s.n. San Mateo San Bruno. Comment
  JROH5347  Paspalum distichum John Hunter Thomas 1979-9-9 19732 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of dam. Comment
  JROH5349  Paspalum distichum John Hunter Thomas 1981-7-12 20699 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1400  Pectocarya pusilla J. I. McMurphy 1911-5-11 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5551  Pectocarya pusilla John Rawlings 2013-4-16 1126 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2 extension about 120 meters northwest from trail marker, east side of trail 136 Comment
  JROH1404  Pectocarya pusilla Carol Zabel and Ann Lambrecht 2003-4-15 48 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail c. After starting at the east end of trail, it splits into two trails which lead out to Trail 9. Sample collected on long (righthand) branch, immediately after the split Comment
  UCR136713  Pedicularis densiflora L. S. Rose 1948-3-31 48031 San Mateo San Francisco Bay Region, Millbrae Highlands 91 Comment
  JROH4108  Pedicularis densiflora John H. Thomas 1961-4-8 9068 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Searsville Lake end of ridge Comment
  CAS-BOT-BC266664  Pedicularis dudleyi D. D. Davis No date on label s.n. San Mateo Santa Cruz Peninsula. Iverson's Peter's Creek Comment
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Jun 13 2020
  CAS-BOT-BC266668  Pedicularis dudleyi W. R. Dudley 1903-6-6 s.n. San Mateo Santa Cruz Peninsula. Near Iverson's, Pescadero Creek Comment
  CAS-BOT-BC266669  Pedicularis dudleyi W. R. Dudley 1903-5-2 s.n. San Mateo Santa Cruz Peninsula. Near fork of road to old Page Mill Comment
  SFV4292  Pelargonium capitatum J. Turner, F. M. Ball 1962-7-7 s. n. San Mateo Highway 1, almost 10 miles north of Santa Cruz County line Open roadside. 30 Comment
  JROH99  Pellaea andromedifolia John H. Thomas 1974-11-5 17662 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail below dam. Comment
  JROH5876  Pentachaeta alsinoides John Hunter Thomas 1989-5-5 24655 San Mateo Jasper Ridge Biological Preserve, Stanford University. [Along Rd. F] 166 Comment
  CAS-BOT-BC330501  Pentachaeta bellidiflora Lewis S. Rose 1948-3-31 48032 San Mateo Skyline Blvd., above San Andreas Lake. 152 Comment
  SJSU12769  Pentachaeta bellidiflora S. C. Sommers 1986-5-2 San Mateo W side Edgewood Park, W of Hwy 280 off Edgewood Rd, Redwood City Comment
  CAS-BOT-BC77003  Pentagramma triangularis subsp. triangularis John H. Thomas 1958-3-19 7068 San Mateo East facing lsope of San Bruno Mountain, just north of South San Fancisco. 91 Comment
  JROH310  Perideridia kelloggii John H. Thomas 1972-8-18 16148 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3242  Persicaria amphibia Le Roy Abrams 1900-10-1 1002 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Comment
  CAS-BOT-BC413610  Persicaria amphibia W. R. Dudley 1909-10-31 s.n. San Mateo Santa Cruz Mountain Peninsula. Hooper's Pond, Woodside Comment
  JROH3251  Persicaria amphibia John Hunter Thomas 1981-7-12 20705 San Mateo Jasper Ridge Biological Preserve, Stanford University. On old beach in shallow water. Comment
  CAS-BOT-BC418848  Persicaria hydropiperoides Ira L. Wiggins 1985-9-28 22298 San Mateo Bed of San Francisquito Creek, N side of creek bed, just above Pope Street bridge, Menlo Park Comment
  JROH3270  Persicaria lapathifolia John H. Thomas 1976-10-16 18406 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry delta in Searsville Lake at the mouth of Corte de Madera Creek. Comment
  JROH3274  Persicaria lapathifolia John Hunter Thomas 1981-10-25 20766 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta. Comment
  JROH3282  Persicaria punctata Roxana S. Ferris 1924-10-6 4093 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake in Portola Highway. Comment
  RSA26764  Petasites palmatus Albert W. C. T. Herre, I. L. Wiggins 1939-3-25 19 A San Mateo Headwaters of Pescadero Creek, about 8 miles north of Big Basin Redwood Park. Comment
  RSA144781  Phacelia californica John H. Thomas 1958-3-19 7045 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 30 Comment
  POM65454  Phacelia distans A. D. E. Elmer 1903-04 4862 San Mateo San Pedro. Comment
  UC306570  Phacelia distans A. D. E. Elmer April 1903 4862 San Mateo San Pedro Comment
  UC1084388  Phacelia divaricata G. Thomas Robbins 1937-4-11 96 San Mateo near Spring Valley Lakes (along road to Woodside) Comment
  UC881192  Phacelia malvifolia John Thomas Howell 1938-5-1 13768 San Mateo Colma Canyon Comment
  JROH2760  Phacelia nemoralis subsp. nemoralis John H. Thomas 1967-5-31 12939 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC909979  Phacelia nemoralis subsp. nemoralis Lewis S. Rose 1939-6-16 39281 San Mateo Skyline Blvd. above Woodside 563 Comment
  POM65465  Phacelia nemoralis subsp. nemoralis A. D. E. Elmer 1903-06 4419 San Mateo Crystal Springs Lake. Comment
  JROH2764  Phacelia rattanii John H. Thomas 1961-6-7 9530 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS67917  Phalaris L. R. Heckard and J. H. Thomas 1972-4-16 2902 San Mateo along e side Upper Crystal Springs Reservoir ((below State Highway interchange)); along e side Upper Crystal Springs Reservoir Comment
  SD227705  Phalaris aquatica G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3743 San Mateo Portola Valley: Golden Hills Rd along Los Trancos Creek 106 Comment
  JROH5643  Phalaris brachystachys John Rawlings 2014-6-7 1263 San Mateo Jasper Ridge Biological Preserve, Stanford University; 100 yards west from Escobar Gate, 20 yards north of Road F 161 Comment
  CAS-BOT-BC259004  Phalaris californica Walter Knight; Irja Knight 1964-5-30 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  CAS-BOT-BC259009  Phalaris californica W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Crystal Springs Comment
  CAS-BOT-BC259008  Phalaris californica George Oberlander 1949-4-2 27 San Mateo San Francisco Watershed Reserve. North Cahill Comment
  SEINET10887598  Phalaris californica Adolph D. E. Elmer Elmer 4699 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC250644  Phalaris minor J. H. Thomas 1954-4-3 3828 San Mateo San Gregorio Creek drainage, 1.2 miles inland from San Gregorio 60 Comment
  RSA17945  Phalaris minor C. B. Wolf, Le Roy Abrams 1927-6-4 s.n. San Mateo San Gregorio Comment
  RSA17943  Phalaris paradoxa C. B. Wolf, Le Roy Abrams 1927-6-4 s.n. San Mateo San Gregorio Comment
  SD38530  Pholistoma auritum var. auritum Marie Cummings 1933-4-24 3729 San Mateo San Francisquito Creek, San Mateo and Santa Clara Cos. Comment
  JROH4294  Phoradendron leucarpum subsp. tomentosum John Hunter Thomas 1979-1-31 19348 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  JROH4290  Phoradendron serotinum subsp. tomentosum John H. Thomas 1960-3-1 8536 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  RSA132361  Phoradendron villosum John H. Thomas 1960-3-1 8536 San Mateo Jasper Ridge, about 5 miles SW of Palo Alto. 152 Comment
  RSA647542  Phyllospadix torreyi Judy Hansen 1969-6-29 s.n. San Mateo Pidgeon Point. 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
  CAS-BOT-BC206937  Pickeringia montana var. montana Daniel Cohen 1953-5-9 86 San Mateo La Honda Road nera Skyline Drive Comment
  CAS-BOT-BC206942  Pickeringia montana var. montana J. I. McMurphy 1906-5-20 80 San Mateo King's Mt. Road, Santa Cruz Mts. - Santa Cruz Peninsula 457 Comment
  JROH2202  Pickeringia montana var. montana John H. Thomas 1975-6-5 17937 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack Comment
  RSA19297  Pickeringia montana var. montana L. S. Rose 1937-5-23 37321 San Mateo Belmont 91 Comment
  SEINET3871791  Pinus attenuata K. Allred 1975-1-3 1267 San Mateo Half Moon Bay, Dune Beach.; 0 Comment
  UCSB23893  Pinus radiata Haller, John 1967-10-7 San Mateo Coastways Ranch near Ano Nuevo Creek, 0.5 miles inland from Ano Nuevo Bay, about 20 miles by road northwest of Santa Cruz 30 Comment
  CAS-BOT-BC136530  Piperia candida W. R. Dudley 1905-6-18 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  UC1371043  Piperia elegans Theodore F. Niehaus 1968-8-14 836 San Mateo ne slopes San Bruno Mountain Comment
  CAS-BOT-BC137314  Piperia elegans W. R. Dudley 1896-2-16 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC137318  Piperia elegans Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC137319  Piperia elegans Phillip C. Wheeler 1965-5-12 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC228136  Plagiobothrys chorisianus Dr. E Goodman 1922-5-23 s.n. San Mateo San Bruno Hills Comment
  CAS-BOT-BC228142  Plagiobothrys chorisianus Alice Eastwood; John Thomas Howell 1938-6-26 6068 San Mateo Pigeon Point Comment
  UC24559  Plagiobothrys chorisianus Alice Eastwood Apr 1896 San Mateo Crystal Springs Comment
  UC78190  Plagiobothrys chorisianus K. Brandegee 1892-4-9 San Mateo South San Francisco Comment
  UC881324  Plagiobothrys chorisianus Alice Eastwood 1915-6-13 4717 San Mateo Granada Comment
  UCR70806  Plagiobothrys chorisianus David D. Keck 1932-4-18 1435 San Mateo San Francisco Bay Region, Burlingame; on the shore of San Francisco Bay 2 Comment
  CAS-BOT-BC228120  Plagiobothrys chorisianus David D. Keck 1933-5-11 2294 San Mateo Montara Light House and Radio Station Comment
  CAS-BOT-BC228137  Plagiobothrys chorisianus Roxana S. Ferris 1920-4-23 1953 San Mateo The Santa Cruz Mountain Peninsula. On abandoned road above N fork of Peters Creek, about spring 640 Comment
  RSA320763  Plagiobothrys chorisianus Robert A. Norris 1984-3-21 4650 San Mateo along trail in saddle between Parking Lot (and summit) and Blue Blossom Hill, San Bruno Mountains 305 Comment
  SD67294  Plagiobothrys chorisianus var. chorisianus Darley F. Howe 1967-4-13 4342 San Mateo Pebble Beach Comment
  CAS-BOT-BC228155  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1893-5-27 s.n. San Mateo The Santa Cruz Mountain Peninsula. Between King's Mountain and La Honda, below Hayman's Ranch Comment
  SD73208  Plagiobothrys chorisianus var. chorisianus Darley F. Howe 1969-6-10 4640 San Mateo 18.5 miles north of San Mateo Santa Cruz County line. Comment
  CAS-BOT-BC228076  Plagiobothrys chorisianus var. hickmanii Otto M. Sokol 1953-5-9 61 San Mateo Pebble Beach Comment
  CAS-BOT-BC228175  Plagiobothrys chorisianus var. hickmanii W. R. Dudley 1900-3-16 s.n. San Mateo The Santa Cruz Mountain Peninsula. Along road between King's [Kings] Mountain and Half Moon Bay Comment
  JROH1419  Plagiobothrys chorisianus var. hickmanii John Hunter Thomas 1983-5-3 21878 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
  JROH1422  Plagiobothrys nothofulvus John H. Thomas 1968-4-19 14291 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD129730  Plagiobothrys reticulatus var. reticulatus Roy E. Buck, James A. West 1985-4-29 527 San Mateo Cascade Ranch Comment
  SJSU2269  Plantago coronopus C. W. Sharsmith 1947-3-23 6746 San Mateo Pescadero Beach near Pescadero Point Comment
  JEPS22018  Plantago elongata G. Thomas Robbins with S. Galen Smith 1958-6-9 3861 San Mateo about 0.5 mi s Pescadero Point (around the edges of the parking area at Pebble Beach); Pebble Beach Comment
  JROH3111  Plantago erecta John H. Thomas 1974-4-4 17084 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3118  Plantago erecta John Hunter Thomas 1981-4-27 20508 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3126  Plantago erecta John Hunter Thomas 1992-4-29 25172 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM61501  Plantago erecta A. D. E. Elmer 1903-04 4795 San Mateo San Bruno Hills. Comment
  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
  OBI11658  Plantago erecta Lewis S. Rose 1965-5-3 65056 San Mateo San Bruno Mtn, North end 183 Comment
  POM283960  Plantago erecta Lyman Benson 1931-4-26 2756 San Mateo Behind Stanford University. Santa Cruz mtn range, Corte Madera Creek. 213 Comment
  RSA283962  Plantago erecta Arthur L. Cohen 1935-4-21 631 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  JROH3132  Plantago major John H. Thomas 1959-8-22 8082 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA19306  Plantago maritima L. S. Rose 1937-9-5 37645 San Mateo Mussel Rocks 61 Comment
  SEINET7097922  Platanthera dilatata var. leucostachys A. G. Vestal 1937-1 San Mateo Comment
  CAS-BOT-BC92010  Platystemon californicus W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula. Ravine north of Seal Cove. Comment
  CAS-BOT-BC92023  Platystemon californicus Ynez Whilton Winblad 1941-4-13 s.n. San Mateo 1 mile north of Crystal Springs Reservoir. Comment
  NY278707  Plectritis nitida A. A. Heller 1907-5-28 8578 San Mateo Above Crystal Springs on the Half Moon Bay road Comment
  CAS-BOT-BC260966  Pleuropogon californicus var. californicus S. Nohara 1906-5-9 s.n. San Mateo Crystal Lake Comment
  POM284984  Pleuropogon californicus var. californicus Lyman Benson 1930-4-26 2060 San Mateo Stanford University. 122 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
  JROH5402  Poa annua John Hunter Thomas 1982-3-23 20812 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1537245  Poa annua Gordon H. True Jr. 1937-3-31 619 San Mateo Salada Beach Rd 60 Comment
  CAS-BOT-BC255054  Poa compressa Peter H. Raven 1950-4-16 1812 San Mateo Flat fields between Geneva Avenue, San Francisco County and Summit of San Bruno Mountains, San Mateo County Comment
  CAS-BOT-BC254541  Poa douglasii J. H. Thomas 1963-5-20 10155 San Mateo At Ano Nuevo Point Comment
  CAS-BOT-BC246707  Poa howellii Ira L. Wiggins 1928-4-14 2908 San Mateo Alpine Creek Road Comment
  SEINET10602237  Poa nevadensis Edwin B. Copel 1903-4-20 Copeland 1920 San Mateo San Andreas Lake, Ca. Tufts about hill tops. Comment
  JROH5420  Poa pratensis subsp. pratensis John Rawlings 2012-5-8 1108 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville store marker sign west edge of Road L 107 Comment
  POM204948  Poa secunda E. B. Copeland 1903-4-20 1920 San Mateo San Andreas Lake Comment
  CAS-BOT-BC539283  Poa secunda subsp. secunda John Rawlings; Ken Hickman 2015-6-8 1575 San Mateo Caltrans right-of-way above Hwy 92 E of Hwy 280, downslope from San Francisco Watershed fenceline 118 Comment
  JROH5424  Poa secunda subsp. secunda Herbert Dengler 1962-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; N of Searsville Rocks 100 ft from S. F. Cr. Comment
  SEINET10954075  Poa trivialis P. Rubtzoff 1977-6-7 Rubtzoff 9030 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC244254  Poa unilateralis Walter & Irja Knight 1965-4-25 1054 San Mateo San Bruno Mountain. Owl's Canyon 228 Comment
  SEINET10659521  Poa unilateralis Edwin B. Copel 1903-6-17 Copeland 3306 San Mateo Montara Point. Comment
  SJSU15435  Poa unilateralis subsp. unilateralis Toni Corelli 2010-5-14 673 San Mateo Southern end of Pillar Point Bluff, San Mateo County. 32 Comment
  UC168661  Polygonum amphibium var. emersum C. F. Baker 1902-10-20 1835 San Mateo Searsville Comment
  JROH3258  Polygonum aviculare subsp. depressum John H. Thomas 1974-8-3 17498 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC6613  Polygonum coccineum f. terrestre Charles Fuller Baker 1902-10-20 1835 San Mateo Searsville Comment
  UCR66558  Polygonum paronychia David D. Keck 1931-10-5 1288 San Mateo 1 mi north of Salada Beach 200 Comment
  UCD100554  Polygonum patulum John Thomas Howell 1953-6-3 29057 San Mateo Bayshore Highway, Redwood City. Comment
  UC1936265  Polypodium Robert Price 1983-1-10 627 San Mateo Pulgas Ridge, just ENE of Crystal Springs Reservoir, ca. 1/8 mi ENE of entry gate on Bunker Hill Ave. 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-BC76906  Polypodium californicum W. R. Dudley 1903-3-10 s.n. San Mateo Santa Cruz Mountain Peninsula - near Pedro Pt. and near sea. Comment
  JEPS121479  Polypodium calirhiza Adam C. Schneider with C. Matt Guilliams 2013-2-2 1 San Mateo Crystal Springs Reservoir, 100 yards west from the intersection of Lexington Ave. and Allegheny Way, Highlands-Baywood Park, CA. Comment
  CAS-BOT-BC167228  Polypodium scouleri Peter Rubtzoff 1977-11-24 9143 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC72107  Polypodium scouleri Walter Knight; Irja Knight 1964-4-25 695 San Mateo unspecified Comment
  CAS-BOT-BC233152  Polypogon interruptus H. A. Borthwick 1920-6-1 203 San Mateo Santa Cruz Mountain Peninsula. Back of Redwood City Comment
  CAS-BOT-BC233153  Polypogon interruptus H. A. Borthwick 1920-6-1 203 San Mateo Santa Cruz Mountain Peninsula. Back of Redwood City Comment
  JROH5645  Polypogon interruptus John Rawlings 2014-5-28 1249 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Up-stream edge of low flow crossing of San Francisquito Creek. 81 Comment
  UC203508  Polypogon interruptus A. D. E. Elmer July, 1903 4694 San Mateo Pilarcitos Stone Dam Comment
  RSA187461  Polypogon monspeliensis John H. Thomas 1965-12-19 11458 San Mateo Jasper Ridge Biological Experimental Area, 5 miles SW of Palo. Comment
  UC1537219  Polypogon monspeliensis Gordon H. True Jr. 1937-7-23 808 San Mateo n Salada Beach; N of Salada Beach, base of ocean bluff 30 Comment
  JROH4820  Polypogon viridis John Hunter Thomas 1983-7-7 22816 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just below dam. Comment
  CAS-BOT-BC72150  Polystichum californicum Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  JROH47  Polystichum dudleyi Lawrence J. Winship 1974-11-16 10 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC72225  Polystichum dudleyi George Oberlander 1950-7-15 1026 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC72227  Polystichum dudleyi Kate O. Sessions s.n. San Mateo unspecified Comment
  UCD136472  Polystichum dudleyi Rimo Bacigalupi; J. H. Thomas and L. R. Heckard 1961-5-23 7713 San Mateo East side of Peters Creek, 1/2 mile north of its confluence with Pescadero Creek. 137 Comment
  CAS-BOT-BC76610  Polystichum munitum David D. Keck 1932-2-12 1360 San Mateo La Honda road, east slope of Coast Range above Searsville Lake. 304 Comment
  CHSC39836  Polystichum munitum Maxey-Jones 1928-4-21 San Mateo La Honda Redwoods. Comment
Read comments
Jul 7 2010
  IRVC3912  Polystichum munitum P. W. Rundel 1963-6-11 1128 San Mateo San Fransisco Bay drainage area; Old La Honda Road. Santa Cruz Mountain Range 305 Comment
  RSA11001  Polystichum munitum C. B. Wolf 1928-3-14 1538 San Mateo La Honda Grade, Santa Cruz Mountains. Comment
  CAS-BOT-BC410033  Populus X parryi W. R. Dudley 1895-3-11 s.n. San Mateo San Fransicquito Creek, S of Railroad bridge Comment
  JROH3842  Populus trichocarpa John H. Thomas 1976-4-30 18099 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Dam. Comment
  POM223174  Populus trichocarpa S. S. Berry 1909-2-27 s.n. San Mateo Near Los Francos Creek. 46 Comment
  CAS-BOT-BC454002  Potamogeton pectinatus W. R. Dudley 1909-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula. E. twin-pond near Mussel Rock. Comment
  CAS-BOT-BC454003  Potamogeton pectinatus W. R. Dudley 1909-10-31 s.n. San Mateo Santa Cruz Mountain Peninsula. Menlo Park Reservoir Comment
  UC279589  Potamogeton pectinatus W. A. Setchell, C. B. Setchell, H. E. Parks 1925-4-29 San Mateo Comment
  CDA857  Potamogeton pusillus Wm. Davis 1964-6-17 San Mateo Lake on Purcell property, San Mateo. 0 Comment
  SEINET11664366  Potamogeton pusillus W. R. Dudley 1909-1 s.n. San Mateo small bay near club house, Crystal Springs Reservior, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC454050  Potamogeton pusillus subsp. pusillus W. R. Dudley 1909-10-10 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Club House, Crystal Springs Reservoir Comment
  CAS-BOT-BC141929  Potentilla anserina subsp. pacifica Elizabeth McClintock; Carlyn Halde; Walter Knight 1963-6-23 s.n. San Mateo Lower part of Colma Canyon - San Bruno Mountains Comment
  CAS-BOT-BC141931  Potentilla anserina subsp. pacifica George Oberlander 1950-5-6 925 San Mateo Below San Andreas Dam - San Francisco Watershed Reserve Comment
  UCSB17159  Poterium sanguisorba 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
  JROH3378  Primula clevelandii var. patula John H. Thomas 1977-2-27 18472 San Mateo Jasper Ridge Biological Preserve, Stanford University. Westridge end of Jasper Ridge Comment
  CAS-BOT-BC516345  Prosartes hookeri C. F. Leithold 1894-8-13 s.n. San Mateo Devil's Canyon near Black Mt., Santa Cruz Peninsula Comment
  CAS-BOT-BC516353  Prosartes hookeri W. R. Dudley 1898-4-24 s.n. San Mateo El Corte de Madera Creek, Santa Cruz Peninsula Comment
  JROH4680  Prosartes hookeri John Hunter Thomas 1991-4-25 25000 San Mateo Jasper Ridge Biological Preserve, Stanford University. Redwood areas near San Francisquito Creek below dam Comment
  SEINET12044826  Prosartes hookeri C. F. Baker 1903-1 5052 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC517385  Prosartes smithii L. S. Rose 1931-4-4 s.n. San Mateo Kings Mountain Comment
  SJSU9997  Prosartes smithii R. L. Roney 1974-4-27 San Mateo N side of La Honda Creek 457 Comment
  RSA181225  Prunella vulgaris var. lanceolata John H. Thomas 1964-6-19 10430 San Mateo 0.9 miles S of Tunitas Creek near Coast Hwy, 61 Comment
  UC311189  Prunus emarginata A. D. E. Elmer May, 1903 4523 San Mateo Searsville Lake Comment
  CAS-BOT-BC154498  Prunus ilicifolia George Oberlander 1949-8-20 388 San Mateo Sweeney Ridge Comment
  POM139638  Prunus subcordata A. D. E. Elmer 1903-04 4533 San Mateo Portola. Comment
  CAS-BOT-BC156356  Prunus virginiana var. demissa Walter Knight; Irja Knight 1965-4-11 s.n. San Mateo From mouth of Colma Canyon on south side of Guadalupe parkway Comment
  CAS-BOT-BC156357  Prunus virginiana var. demissa D. E. Breedlove 1974-5-13 36207 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  OBI16449  Pseudognaphalium beneolens Lewis S. Rose 1966-8-15 66082 San Mateo Emerald lake, W of Redwood City 91 Comment
  CAS-BOT-BC356472  Pseudognaphalium beneolens James McMurphy 1905-10-15 s.n. San Mateo Goat Ranch near Stanford University Comment
  JROH753  Pseudognaphalium californicum John H. Thomas 1958-5-10 7157 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH755  Pseudognaphalium californicum John H. Thomas 1961-6-7 9534 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC306671  Pseudognaphalium californicum A. D. E. Elmer 1903-6-1 4291 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC356855  Pseudognaphalium californicum George Oberlander 1949-8-20 361 San Mateo San Francisco Watershed Reserve. Sweeney Ridge Comment
  HSC23984  Pseudognaphalium californicum Mary Katherine Wicksten 1971-6-17 54 San Mateo Huddart Park on Chickadee Trail Comment
  CAS-BOT-BC357120  Pseudognaphalium luteoalbum John Thomas Howell 1935-1-13 12578 San Mateo Lake San Andreas Comment
  JROH780  Pseudognaphalium luteoalbum John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  SBBG32247  Pseudognaphalium stramineum L. S. Rose 1966-8-6 66079 San Mateo San Bruno Mtn, Colma Cyn 121 Comment
  RSA249487  Pseudognaphalium stramineum John F. Emmel 1971-9-6 387 San Mateo NE facing slope 0.4 air mile SSW of Midway Village School on 1956 topo quad., above Guadalupe cyn. parkway, San Bruno Mts. 91 Comment
  CAS-BOT-BC85903  Pseudotsuga menziesii unspecified 1894-3-24 s.n. San Mateo Fl. near Pescadero Cr. Comment
  CAS-BOT-BC85915  Pseudotsuga menziesii Miss O. Boring 1897-8-31 s.n. San Mateo Santa Cruz Peninsula, King's Mt. Comment
  HSC1587  Pseudotsuga menziesii P. A. Murphy 1965-4-16 11 San Mateo 4 mi from Half Moon Bay on Higgins Canyon Rd. Comment
  POM193082  Pseudotsuga menziesii W. R. Dudley 1894-3-24 s.n. San Mateo Bank of Pescadero Creek [? Pescadero handwriting unclear]; Santa Cruz Mountain Peninsula. Comment
  JROH127  Pseudotsuga menziesii var. menziesii John Hunter Thomas 1981-2-14 20222 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC766970  Pseudotsuga menziesii var. menziesii R. F. Hoover 1941-2-12 4760 San Mateo above La Honda; La Honda Creek Comment
  SEINET5334815  Pseudotsuga menziesii var. menziesii R. L. Oliver 1976-4-18 s.n. San Mateo La Honda, San Mateo Memorial Park. Comment
  CAS-BOT-BC362023  Psilocarphus tenellus Peter H. Raven 1950-4-16 1804 San Mateo Summit ridge, San Bruno Mts. 243 Comment
  JROH1187  Psilocarphus tenellus John Hunter Thomas 1980-5-8 19948 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA36071  Puccinellia maritima Michael Perlmutter 2011-6-15 San Mateo Foster City; Seal Slough. 0 Comment
  CDA36720  Puccinellia maritima Michael Perlmutter 2011-6-15 San Mateo Burlingame, Sanchez Marsh. 0 Comment
  CAS-BOT-BC460836  Pyrola aphylla H. L. Mason 1921-7-3 s.n. San Mateo Butano Ridge Comment
  CAS-BOT-BC460837  Pyrola aphylla A. D. E. Elmer 1903-6-1 4297 San Mateo Pescadero Comment
  CDA28814  Pyrola picta D. G. Kelch 2009-6-9 9 .405 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
  UC306551  Pyrola picta A. D. E. Elmer 1903-6-1 4297 San Mateo Pescadero Comment
  UC149267  Pyrrocoma racemosa var. racemosa L. R. Abrams 1906-9-29 San Mateo Cooleys Landing Comment
  JROH2532  Quercus John H. Thomas 1974-4-24 17183 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC105387  Quercus X morehus W. R. Dudley 1904-4-10 s.n. San Mateo Santa Cruz Mountain Peninsula, junction of Alpine and Great Round road, in a few yards E of junction of Corte Madera & Comment
  SJSU10132  Quercus agrifolia A. W. Jacobs 1936-12-18 San Mateo Jasper Ridge Comment
  SJSU16069  Quercus agrifolia Allen W. Jacobs 1936-12-8 32 San Mateo Found in Jasper Ridge. Comment
  UCD45065  Quercus agrifolia Lewis S. Rose 1964-3-23 64012 San Mateo Emerald Lake, W. of Redwood City hills. Alt. ca. 400ft. Comment
  CAS-BOT-BC389726  Quercus dumosa M. K. Wicksten 1971-6-15 63 San Mateo Unspecified Comment
  CAS-BOT-BC94276  Quercus durata John H. Thomas 1969-10-19 15486 San Mateo near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC94284  Quercus durata W. R. Dudley 1909-4-27 s.n. San Mateo between Woodside and Crystal Springs Lake Comment
  RSA118985  Quercus durata Marcel Reeves 1954-4-23 61 San Mateo Jasper Ridge above Searsville Lake. 168 Comment
  RSA176746  Quercus durata John H. Thomas 1963-5-12 10077 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  SEINET12034352  Quercus durata Unknown 1930-1 7294 San Mateo ridges near Searsville Lake Common Chaparral Comment
  SBBG39513  Quercus durata var. durata L. S. Rose 1970-7-21 San Mateo Emerald Lake, W of Redwood City 243 Comment
  CAS-BOT-BC105386  Quercus kelloggii W. R. Dudley 1901-3-16 s.n. San Mateo Santa Cruz Mountain Peninsula, near Los Trancos Creek Comment
  JEPS48850  Quercus kelloggii James G. Daly 1934-1 545 San Mateo near crossroads of Skyline Blvd. and La Honda road (watershed of San Gregorio Creek); Santa Cruz Mts., San Gregorio Creek Comment
  JROH2518  Quercus lobata John H. Thomas 1968-4-19 14299 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2526  Quercus lobata John Hunter Thomas 1987-5-26 24322 San Mateo Jasper Ridge Biological Preserve, Stanford University; by old bridge to causeway Comment
  UCD47146  Quercus parvula var. shrevei J. M. Tucker 1946-3-2 1370 A San Mateo Road to Oakland Y.M.C.A Camp, off La Honda-Pescadero road, 6-7 miles east of Pescadero, San Mateo County, California. Comment
  CAS-BOT-BC134783  Quercus wislizeni W. R. Dudley 1903-5-2 s.n. San Mateo Santa Cruz Peninsula. In front of Iverson's house near Peter Creek Comment
  NY201784  Quercus wislizeni J. B. Walker 1994-8-15 909 San Mateo Skyline Rd, mile marker 13.84, N of Sky Londa 100 Comment
  CAS-BOT-BC134782  Quercus wislizeni W. R. Dudley 1903-5-1 s.n. San Mateo Santa Cruz Peninsula. Alpine Road N of Myer's Place Comment
  RSA18093  Quercus wislizeni var. wislizeni Carl B. Wolf 1929-4-24 3655 San Mateo south west end of Jasper Ridge, near Searsville Lake Comment
  CAS-BOT-BC389716  Ranunculus Sharon Rogers 1966-4-23 s.n. San Mateo Field east of Canada Road, between North and South Gates of Filoli Estate Comment
  JROH3475  Ranunculus californicus Toni Corelli 2005-4-13 284 San Mateo Jasper Ridge Biological Preserve, Stanford University; east of Trail 10 178 Comment
  JROH3473  Ranunculus californicus John H. Thomas 1977-4-3 18508 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM268416  Ranunculus californicus Lyman Benson 1930-4-6 s.n. San Mateo San Lorenzo Mt: Crystal Springs Lake. 183 Comment
  POM268421  Ranunculus californicus Lyman Benson 1930-3-20 1953 San Mateo S San Francisco. 91 Comment
  SD80176  Ranunculus californicus R. S. Woglum 1935-5-25 1156 San Mateo San Francisco area, Skyline Drive Comment
  CAS-BOT-BC378542  Ranunculus californicus var. californicus Ira L. Wiggins 1928-4-14 2903 San Mateo Alpine Creek Road Comment
  CAS-BOT-BC378543  Ranunculus californicus var. californicus J. H. Thomas 1954-4-25 3994 San Mateo near intersection of Stanford and Mayfield Avenues in open field which is occasionally plowed; Stanford University campus Comment
  CAS-BOT-BC378726  Ranunculus californicus var. cuneatus Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  RSA0030883  Ranunculus californicus var. cuneatus Lyman Benson 1930-3-2 1947 San Mateo Moss Beach. 15 Comment
  JROH3481  Ranunculus hebecarpus John H. Thomas 1974-4-25 17212 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM87782  Ranunculus hebecarpus L. R. Abrams 1901-03 s.n. San Mateo San Mateo Park Comment
  JROH3496  Ranunculus muricatus John Hunter Thomas 1983-4-5 21327 San Mateo Jasper Ridge Biological Preserve, Stanford University. Low-flow crossing Comment
  UCD96238  Ranunculus muricatus E. M. Johnston Jun and Jul 191 14 San Mateo Bay Region, Millbrae. Comment
  UC827645  Ranunculus orthorhynchus var. bloomeri Lewis S. Rose 1937-4-30 37241 San Mateo Brisbane 6 Comment
  POM177526  Ranunculus orthorhynchus var. bloomeri L. R. Abrams 1909-4-27 s.n. San Mateo marsh land betw Woodside and Crystal Lake Comment
  RSA152061  Rhamnus californica John H. Thomas 1961-5-7 9297 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  UC592790  Rhamnus californica unknown 1927-12-31 1473 San Mateo 0.5 way up Kings Mt. Comment
  JROH5771  Rhamnus crocea John Rawlings 2016-3-8 1683 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 12 east of Trail 10 intersection 110 Comment
  RSA7753  Rhamnus crocea Carl B. Wolf 1927-4-3 283 San Mateo 1/4 mile from Schenkel's Camp, 2 miles back of Stanford Comment
  CAS-BOT-BC56663  Rhododendron occidentale H. L. Mason 1921-7-3 s.n. San Mateo Butano Ridge Comment
  POM132207  Rhododendron occidentale var. occidentale A. D. E. Elmer 1903-06 4298 San Mateo Butano Creek Comment
  JROH2633  Ribes aureum var. gracillimum Carol Zabel 1989-8-7 22 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 12 at bridge nearest Mapache Gate. Comment
  UCR2941  Ribes aureum var. gracillimum Wm. Horn Jr. 1963-4-9 620409- 02 San Mateo San Francisco Bay region, Hillsborough, 2240 Redington Rd. 30 Comment
  SEINET12215220  Ribes aureum var. gracillimum Cummings, McCallum, G. A. 1933-1 s.n. San Mateo Stevens Creek Comment
  JEPS49330  Ribes californicum W. L. Jepson 1922-3-19 9540 San Mateo Lake San Andreas Comment
  RSA101029  Ribes californicum G. Oberlander 1950-3-18 527 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve. Comment
  SBBG27519  Ribes californicum L. S. Rose 1933-6-9 33226 San Mateo Belmont Comment
  JROH2635  Ribes californicum var. californicum John H. Thomas 1958-2-15 6989 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2640  Ribes californicum var. californicum John H. Thomas 1967-3-26 12418 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2644  Ribes californicum var. californicum John Hunter Thomas 1981-2-14 20217 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC173084  Ribes divaricatum var. pubiflorum F. J. Jack 1894-3-24 s.n. San Mateo La Honda Road Comment
  CAS-BOT-BC173088  Ribes divaricatum var. pubiflorum W. R. Dudley 1900-5-19 s.n. San Mateo Aove Week's Ranch by La Honda Road Comment
  CAS-BOT-BC173089  Ribes divaricatum var. pubiflorum F. J. Jack 1894-3-24 s.n. San Mateo Near McDonough Ranch, Portola Comment
  JROH2653  Ribes divaricatum var. pubiflorum John Hunter Thomas 1983-4-21 21644 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along causeway. Comment
  UC1736497  Ribes divaricatum var. pubiflorum Dean W. Taylor 1989-4-18 10219 San Mateo Montara Mountain; ridgetop between Ox Hill and Scarper Peak 472 Comment
  RSA0021676  Ribes malvaceum Lyman Benson 1931-1-25 2576 San Mateo Continuation of Page Mill Road toward La Honda. Stanford University, Santa Cruz Mountain Range. 244 Comment
  CAS-BOT-BC212837  Ribes menziesii R. Bacigalupi 1922-3-1 s.n. San Mateo Along Pescadero Creek Comment
  CAS-BOT-BC212842  Ribes menziesii J. H. Thomas 1949-3-31 205 San Mateo King's Mountain Comment
  CAS-BOT-BC212843  Ribes menziesii D. E. Breedlove 1974-5-13 36202 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  UC11716  Ribes menziesii J. Burtt Davy Jun 21 1893-Jun 23 1893 1148 San Mateo Pilarcitos Lake and Canyon Comment
  CAS-BOT-BC212820  Ribes menziesii R. Bacigalupi 1946-7-6 2792 San Mateo Canyon along Edgemar Road, 1.5 miles above Edgemar Comment
  CAS-BOT-BC212836  Ribes menziesii V. F. Hesse 1955-10-10 1716 San Mateo China grade road, 2.3 miles from Butano-Gazos Creek Road 152 Comment
  JROH2672  Ribes menziesii var. menziesii Toni Corelli 2002-8-19 248 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Trail 1. 82 Comment
  UC463132  Ribes menziesii var. senile W. R. Dudley 1894-3-23 San Mateo above Searsville Dam (below McDonough ranch); Santa Cruz Peninsula, Canada Creek Comment
  CAS-BOT-BC144635  Ribes sanguineum var. glutinosum W. R. Dudley 1900-3-18 s.n. San Mateo Below San Andreas Lake and above head of Crystal Springs Lake Comment
  UC921843  Ribes sanguineum var. glutinosum Lillian Lockwood 1908-3-9 San Mateo Coal Mine Ridge Comment
  JROH1203  Rigiopappus leptocladus John H. Thomas 1963-5-15 10089 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC363085  Rigiopappus leptocladus J. I. McMurphy 1900-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula. On road between Byrne's Store and Woodside Comment
  JROH1205  Rigiopappus leptocladus John Hunter Thomas 1982-5-9 20925 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR148006  Rorippa nasturtium-aquaticum Robert E. Preston 2001-5-30 1535 San Mateo c. 9 mi NNW of Boulder Creek 305 Comment
  JROH1580  Rorippa palustris subsp. palustris John Hunter Thomas 1977-6-16 18784 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1584  Rorippa palustris subsp. palustris John Hunter Thomas 1979-9-9 19722 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of Searsville Lake Comment
  CAS-BOT-BC147629  Rosa californica Walter Knight; Irja Knight 1967-6-6 2068 San Mateo Overlooking San Francisco Bay. Point San Bruno Comment
  CAS-BOT-BC147631  Rosa californica C. B. Wolf 1931-8-20 2327 San Mateo Los Trancos Creek, 2 miles back of Stanford University, near Schenkel's Camp 91 Comment
  JROH3756  Rosa californica Toni Corelli 2007-8-29 335 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 1 just before first redwood grove, above San Francisquito Creek 80 Comment
  CAS-BOT-BC146690  Rosa gymnocarpa Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Bitter-cherry Ridge Comment
  RSA195394  Rosa gymnocarpa W. R. Dudley 1906-5-8 65 San Mateo Near Crystal Springs Lake. Santa Cruz Mtns. Santa Cruz peninsula. 91 Comment
  SEINET11918001  Rosa gymnocarpa Unknown 1932-4-9 8975 San Mateo Los Tucansos Woods Comment
  JROH3767  Rosa laevigata John H. Thomas 1967-6-1 12971 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC148213  Rosa spithamea V. F. Hesse 1953-8-22 1189 San Mateo Near China Grade 762 Comment
  JROH3769  Rubus armeniacus John Hunter Thomas 1982-11-6 21215 San Mateo Jasper Ridge Biological Preserve, Stanford University. On causeway Comment
  CAS-BOT-BC152866  Rubus parviflorus Elizabeth McClintock 1965-3-28 s.n. San Mateo Columbine Gulch - San Bruno Mountain Comment
  CAS-BOT-BC152867  Rubus parviflorus Phillip C. Wheeler 1965-7-8 s.n. San Mateo Quarry Canyon - San Bruno Mountain 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
  SJSU10411  Rubus spectabilis R. B. Blake 1966-4-10 San Mateo Gazos Cr, Big Basin State Park Comment
Read comments
Dec 7 2010
  RSA112364  Rubus spectabilis var. franciscanus W. R. Dudley 1900-3-16 s.n. San Mateo By bridge over Pilarcitos Rd. (Spanishtown and San Mateo). Comment
  CAS-BOT-BC156595  Rubus ulmifolius Ira L. Wiggins 1980-8-29 22263 San Mateo North bank of San Francisquito Creek, on upstream side of Pope Street bridge, Menlo Park Comment
  CAS-BOT-BC157100  Rubus ursinus Peter H. Raven 1950-4-30 1972 San Mateo Above streets of Montara 15 Comment
  JEPS25749  Rubus ursinus L. R. Heckard with Rimo Bacigalupi 1961-5-14 1234 San Mateo Canyon of Pilarcitos Creek about 0.5 mi below Stone Dam Reservoir; Canyon of Pilarcitos Creek below Stone Dam Reservoir 182 Comment
  POM204330  Rubus ursinus I. L. Wiggins 1929-7-4 3775 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  POM140136  Rubus vitifolius Edward L. Greene 1902-1-15 246 San Mateo W side King's Mtn. Comment
  UC1537260  Rumex acetosella Gordon H. True Jr. 1936-4-5 393 San Mateo canyon between Pescadero and San Gregorio 304 Comment
  CAS-BOT-BC422090  Rumex acetosella Elizabeth McClintock; Paul Reeberg 1989-8-31 s.n. San Mateo San Bruno Mountains. Willow Pond. Comment
  CAS-BOT-BC422292  Rumex californicus Phillip Wheeler 1965-6-8 s.n. San Mateo San Bruno Mountain. Bayshore Comment
  JROH5665  Rumex conglomeratus John Rawlings 2014-8-12 1273 San Mateo Jasper Ridge Biological Preserve, Stanford University; dry San Francisquito Creek, between low flow crossing and downstream serpentine outcrop 79 Comment
  CAS-BOT-BC421822  Rumex conglomeratus John H. Thomas 1963-5-20 10145 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC421823  Rumex conglomeratus Carl B. Wolf 1929-4-26 3658 San Mateo Woodside Comment
  CAS-BOT-BC433366  Rumex crispus Margaret Barry 1938-5-14 257 San Mateo Near Mud Lakes, Coal Mine Ridge Comment
  CAS-BOT-BC433367  Rumex crispus A. D. E. Elmer 1903-6-1 4276 San Mateo San Mateo Comment
  CAS-BOT-BC433817  Rumex pulcher David D. Keck 1932-5-6 1458 San Mateo Belmont 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
  CAS-BOT-BC433997  Rumex salicifolius Josephine D. Randall 1907-7-23 291 San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  JROH3313  Rumex salicifolius John Hunter Thomas 1977-6-16 18787 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD39773  Rumex salicifolius Edith A. Purer 1932-7-18 4015 San Mateo Half Moon Bay, sand dunes Comment
  SD88535  Rumex salicifolius Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of Half Moon Bay Comment
  CAS-BOT-BC433996  Rumex salicifolius W. R. Dudley 1909-10-10 s.n. San Mateo Santa Cruz Mountain Peninsula. E. shore of N. pond, Crystal Springs Res. Comment
  JROH2220  Rupertia physodes John Hunter Thomas 1981-5-5 20542 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1109006  Ruppia cirrhosa H. E. Parks Oct 1928 San Mateo Laguna Salada Comment
  UC583143  Ruppia maritima Lewis S. Rose 1936-9-6 36724 San Mateo Granada 1 Comment
  CAS-BOT-BC454178  Ruppia maritima Ira L. Wiggins 1946-4-30 11199 San Mateo On west side of Bayshore Highway 1/2 mile north of Redwood City. Comment
  CAS-BOT-BC454179  Ruppia maritima W. R. Dudley 1908-9-1 s.n. San Mateo Laguna Salada Comment
  UCR121549  Ruta chalepensis George K. Helmkamp, E. A. Helmkamp 1999-6-28 5003 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  CDA40209  Ruta chalepensis Thad 2004-9-24 s.n. San Mateo San Francico Bay Area; City of San Mateo. 0 Comment
  UC1191410  Salicornia europaea S. Galen Smith 1951-6-28 1917 San Mateo ca 1 mi n San Mateo (along the Bayshore Highway 101) Comment
  RSA119072  Salix coulteri L. S. Rose 1958-3-19 58011 San Mateo Princeton. 6 Comment
  HSC19942  Salix exigua var. hindsiana L. S. Rose 1965-3-8 65003 San Mateo Searsville Lake 122 Comment
  JROH3851  Salix exigua var. hindsiana John Hunter Thomas 1988-4-28 24414 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway Comment
  CAS-BOT-BC104051  Salix hindsiana Lewis S. Rose 1965-3-8 65003 San Mateo Searsville Lake 121 Comment
  CAS-BOT-BC125367  Salix lasiandra var. lasiandra Peter H. Raven 1964-9-13 19671 San Mateo Half Moon Bay Comment
  JROH3870  Salix lasiandra var. lasiandra John H. Thomas 1968-5-17 14177 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3874  Salix lasiandra var. lasiandra John H. Thomas 1973-4-7 16520 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake Comment
  JROH3882  Salix lasiandra var. lasiandra Toni Corelli 2003-2-6 256 San Mateo Jasper Ridge Biological Preserve, Stanford University; along eastern side of lake Trail 21 at west end of spillway 105 Comment
  CAS-BOT-BC107128  Salix lasiolepis A. D. E. Elmer 1903-3-1 4875 San Mateo Searsville Lake Comment
  CAS-BOT-BC107129  Salix lasiolepis A. D. E. Elmer 1903-3-1 4875 San Mateo Searsville Lake Comment
  CAS-BOT-BC107131  Salix lasiolepis C. R. Ball; G. W. Hendry 1931-2-22 14 San Mateo San Gregorio, near sea level - in arroyo near San Gregorio Creek, 100 m. from ocean Comment
  CAS-BOT-BC107135  Salix lasiolepis Walther 1919-2-23 s.n. San Mateo Woodside Comment
  JROH3862  Salix lasiolepis Lewis S. Rose 1965-3-8 65004 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake stream banks Comment
  POM161137  Salix lasiolepis L. R. Abrams 1915-3-13 5164 San Mateo Near jct of San Francisquito and Los Trancos creeks. About 2 miles from Stanford University. Comment
  UC481898  Salix lasiolepis C. R. Ball and G. W. Hendry 1931-2-22 15 San Mateo in arroyo near San Gregorio Creek (100 m from ocean); San Gregorio Comment
  CAS-BOT-BC108252  Salix lasiolepis var. bigelovii Alice Eastwood 1920-3-15 s.n. San Mateo San Bruno Hills Comment
  CAS-BOT-BC108253  Salix lasiolepis var. bigelovii Alice Eastwood 1920-3-15 s.n. San Mateo San Bruno Hills Comment
  CAS-BOT-BC124490  Salix lasiolepis var. lasiolepis Javier Penalosa 1963-2-23 2641 San Mateo San Bruno Mtn. Ravine south of Crocker Ave. 213 Comment
  CAS-BOT-BC126509  Salix sitchensis W. R. Dudley 1900-3-16 s.n. San Mateo Near Summit Spring, Kings Mt. Comment
  POM167485  Salix sitchensis A. D. E. Elmer 1903-03 4874 San Mateo Portola. Comment
  JEPS62786  Salvia spathacea W. L. Jepson 1921-4-3 9107 San Mateo Colma Canyon Comment
  POM62871  Salvia spathacea C. F. Baker 1903-4-6 1878 San Mateo San Bruno Hills. Comment
  UC25752  Salvia spathacea Ivar Tidestrom May 1894 San Mateo Comment
  CAS-BOT-BC290601  Sambucus Peter Rubtzoff 1987-8-26 9840 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. Upper part of East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC246025  Sambucus nigra subsp. caerulea H. A. Dutton 1900-4-17 s.n. San Mateo Jasper S. side, Santa Cruz Peninsula Comment
  JROH1673  Sambucus nigra subsp. caerulea John Hunter Thomas 1981-5-5 20544 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1675  Sambucus nigra subsp. caerulea John Hunter Thomas 1985-5-22 23669 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC236455  Sambucus racemosa subsp. racemosa James B. Roof 1966-3-27 s.n. San Mateo Power Line Ridge, San Bruno Mountain Comment
  CAS-BOT-BC235073  Sambucus racemosa var. racemosa A. D. E. Elmer 1903-5-1 4663 San Mateo Butano Creek Comment
  POM133562  Sanicula arctopoides Edward L. Greene 1902-3-30 425 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC223320  Sanicula bipinnatifida Ned Cahill 1974-4-30 215 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  POM288029  Sanicula bipinnatifida Lyman Benson 1931-3-15 2637 San Mateo Emerald Lake; Redwood City; Mt. Range: Santa Cruz 549 Comment
  JROH332  Sanicula crassicaulis John H. Thomas 1967-5-12 12877 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH340  Sanicula crassicaulis John H. Thomas 1975-6-5 17947 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Dam Comment
  RSA128598  Satureja douglasii Peter H. Raven 1950-4-30 1988 San Mateo Montara Mountains 122 Comment
  JROH356  Scandix pecten-veneris John Hunter Thomas 1981-5-14 20578 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC218935  Schinus molle Ira L. Wiggins 1980-8-29 22253 San Mateo North bank of San Francisquito Creek, ca 125 M upstream from Pope Street bridge, Menlo Park Comment
  CAS-BOT-BC176408  Scirpus cernuus var. californicus Peter Rubtzoff; Roman Gankin 1975-5-21 7970 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UC841375  Scirpus microcarpus C. B. Carter 1928-11-11 San Mateo La Honda Canyon Comment
  JEPS73772  Scirpus pungens William S. Cooper 1925-5-28 4 San Mateo Salada; dunes Comment
  UC142703  Scoliopus bigelovii Alice Eastwood 1902-2-28 San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC519006  Scoliopus bigelovii W. R. Dudley 1895-3-5 s. n. San Mateo Kings Mt Comment
  CAS-BOT-BC519007  Scoliopus bigelovii W. R. Dudley 1898-3-5 s. n. San Mateo Kings Mt Comment
  SEINET12050509  Scoliopus bigelovii F. H. Utech 1988-1 88 -040 San Mateo 2.6 mi from junction of Kings Mt. Road & CA 35 on former enroute to Woodside 350 Comment
  SEINET12050532  Scoliopus bigelovii F. H. Utech 1988-1 88 -142 San Mateo 0.5 mi from jct of Kings Mt. Rd & CA 35 on former enroute to Woodside, Skyline Hiking Trail & jct 580 Comment
  CDA7620  Scolymus hispanicus T. C. Fuller 1965-7-8 13755 San Mateo D. McBryde property, 140 Eleanor Drive, Woodside. 0 Comment
  CAS-BOT-BC243516  Scribneria bolanderi John H. Thomas 1971-5-2 15869 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
Read comments
Jan 19 2018
  JEPS127846  Scrophularia californica Adam C. Schneider 2013-4-7 84 San Mateo Comment
  JROH4123  Scrophularia californica John H. Thomas 1962-7-15 9917 San Mateo Jasper Ridge Biological Preserve, Stanford University; near northern end of ridge Comment
  JROH4125  Scrophularia californica John H. Thomas 1974-4-25 17194 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA41914  Scrophularia californica T. C. Fuller 1971-6-1 19883 San Mateo East shore of Crystal Springs Reservoir at junction of Highways 280 and 92. 0 Comment
  CHSC57003  Scrophularia californica subsp. californica Steven Triano 1988-5-24 179 San Mateo Along w side of Old La Honda Road ca 0.8 mi s of Portola Road and 4.0 mi s of Woodside. 201 Comment
  CAS-BOT-BC376418  Scrophulariaceae Greg de Nevers 2001-9-26 12630 San Mateo Palo Alto. Comment
  JROH2890  Scutellaria tuberosa John Hunter Thomas 1992-4-23 25161 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Rattlesnake Rocks and along trail to redwoods Comment
  SBBG33418  Sedum spathulifolium A. D. E. Elmer -Jun-1903 4550 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC59270  Sedum spathulifolium W. R. Dudley 1894-4-1 s.n. San Mateo San Mateo Reservoir. Comment
  CAS-BOT-BC363392  Senecio aronicoides Alice Eastwood 1914-3-12 3752 San Mateo San Bruno Hills Comment
  CAS-BOT-BC363393  Senecio aronicoides A. D. E. Elmer 1903-5-1 4508 San Mateo San Bruno Hills Comment
  JEPS82096  Senecio aronicoides Rimo Bacigalupi with Jim Roof and L. Heckard 1961-4-24 7617 a San Mateo just e KRON television tower (on lateral ridge below and se of end of paved ridge-top, on Guadalupe Valley side of summit of San Bruno Mountain); San Bruno Mountain 304 Comment
  JROH1221  Senecio aronicoides D. E. Breedlove 1971-5-31 19356 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  CAS-BOT-BC363389  Senecio aronicoides Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountain. South Power Line Ridge Comment
  JROH1216  Senecio aronicoides D. D. Davis 1903-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville vicinity Comment
  RSA0013329  Senecio aronicoides P. H. Raven 1950-4-6 s.n. San Mateo Colma Canyon, San Bruno Mts. Comment
  JROH1228  Senecio vulgaris John Hunter Thomas 1982-11-6 21197 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC364636  Senecio vulgaris John H. Thomas 1956-12-23 6481 San Mateo At 198 Oak Court, Menlo Park Comment
  CAS-BOT-BC364637  Senecio vulgaris John H. Thomas 1963-5-20 10146 A San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC80290  Sequoia sempervirens Ira L. Wiggins 1925-4-1 1659 San Mateo On Kings Mountain Road three fourths of a mile above Woodside Comment
  JROH133  Sequoia sempervirens W. R. Dudley 1901-1-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA6407  Sequoia sempervirens David D. Keck; 1932-2-14 1368 San Mateo Santa Cruz Mountains, La Honda road, E-slope of Coast Range above Searsville Lake 300.0 Comment
  UC429816  Sequoia sempervirens W. R. Dudley 1901-1 San Mateo near Searsville Comment
  CAS-BOT-BC85778  Sequoia sempervirens W. R. Dudley 1902-12-1 s.n. San Mateo On trail from Iverson's Bull Spring Comment
  IRVC7617  Sequoia sempervirens P. W. Rundel 1962-4-12 1020 San Mateo 2 mi. E of Sky Line Hwy, on La Honda Road. Coast Range 610 Comment
  SEINET3876359 Image available Sequoia sempervirens Barbara Schneider 1963-2-23 24 San Mateo Intersection of El Camino and Alma St.; 0 30 Comment
  CDA33644  Sesbania punicea Robin Breckenridge 2010-7-2 PDR# 1313483 San Mateo East Palo Alto; Cooley Ave. 0 Comment
  SJSU10395  Setaria parviflora W. J. Cervenka 1962-10-21 San Mateo Portola Rd near Alpine Rd Comment
  UCD23457  Sherardia arvensis E. A. Parzail 1949-8-1 s.n. San Mateo 1144 Cortez Avenue, Burlingame. Comment
  JEPS112710  Sidalcea diploscypha Dean W. Taylor 1994-5-10 14265 San Mateo Edgewood Park; ca. 300 meters SE of junction of Edgewood Road and Canada Road, ca. 200 m W of trail parallel to and on west side of Highway 280 137 Comment
  UCR231146  Sidalcea malviflora R. F. Thorne, Percy C. Everett 1963-6-9 32221 San Mateo Central Western; San Francisco Bay area, on top of San Bruno Mountain on Kamchatka Point near the TV tower 335 Comment
  JEPS127780  Sidalcea malviflora subsp. laciniata Adam C. Schneider with C. Matt Guilliams 2013-3-9 34 San Mateo Comment
  UC1300824  Sidalcea malviflora subsp. laciniata Helen K. Sharsmith 1963-2-16 5134 San Mateo above Daly City (lower open slopes of San Bruno Mountain); San Francisco Bay Region, San Bruno Mountain 106 Comment
  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
  RSA448203  Sidalcea malviflora subsp. malviflora Glenn A. Gorelick 1967-2-10 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  JROH1741  Silene gallica John Hunter Thomas 1987-5-5 24240 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC386851  Silene gallica Walter Knight; Irja Knight 1965-4-4 s.n. San Mateo San Bruno Mountain. Bitter Cherry Ravine. Comment
  CAS-BOT-BC386855  Silene gallica John H. Thomas 1963-5-20 10132 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC389194  Silene laciniata subsp. californica A. D. E. Elmer 1903-6-1 4446 San Mateo Crystal Springs Lake Comment
  JROH1726  Silene laciniata subsp. californica Richard L. Garber 1971-7-13 91 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389198  Silene laciniata subsp. californica Brandegee No date on label s.n. San Mateo Crystal Springs Comment
  CAS-BOT-BC389892  Silene scouleri subsp. scouleri John H. Thomas 1961-8-27 9705 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC389893  Silene scouleri subsp. scouleri John H. Thomas 1961-5-7 9289 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC364860  Silybum marianum J. H. Thomas 1949-5-25 562 San Mateo Near western approach to the Dumbarton Bay Bridge Comment
  CAS-BOT-BC74991  Sinapis arvensis Elizabeth McClintock; Paul Reeberg 1989-3-17 s.n. San Mateo San Bruno Mountains. Southwest of PG&E Marsh. 30 Comment
  POM273726A  Sisymbrium officinale Lyman Benson 1935-5-5 6533 San Mateo Lake Searsville; Santa Cruz Mt. Range. S. F. Bay watershed 152 Comment
  RSA133662  Sisyrinchium bellum John H. Thomas 1950-3-19 1303 San Mateo Near intersection of Coast Hwy and road to Swanton, 1 mile SE of mouth of Waddell Creek. 30 Comment
  UC142705  Smilacina stellata C. F. Baker 1903-4-8 1915 San Mateo San Andreas Lake Comment
  SEINET5571657  Smilacina stellata H. S. Gentry 1931-1 3 San Mateo Collected 1.5 miles west of San Mateo, Half-moon Bay road. Comment
  JROH4176  Solanum americanum John H. Thomas 1976-10-16 18413 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along or near San Francisquito Creek from the low flow crossing to the vicinity of the old fire place ruins downstream Comment
  RSA22959  Solanum douglasii L. R. Abrams, I. L. Wiggins 1939-6-3 425 San Mateo Ano Nuevo Point. Comment
  RSA130408  Solanum douglasii W. R. Dudley 1897-10-11 s.n. San Mateo Near Half Moon Bay (Spanishtown). Comment
  UC1332473  Solanum furcatum G. L. Stebbins Jr. and J. W. Duffield 1938-10-24 19 San Mateo Mussell Rock Comment
  UC1332475  Solanum furcatum G. L. Stebbins Jr. and E. F. Paddock 1940-9-7 101 San Mateo at junction of three upper forks of San Pedro Creek (1 mi from seashore, San Pedro Valley); San Pedro Valley 30 Comment
  NY821354  Solanum nigrum P. H. Raven 1951-3-12 2747 San Mateo Summit ridge of the San Bruno Mountains Comment
  CHSC1938  Solanum umbelliferum V. Holt 1942-6-15 San Mateo Half Moon Bay. Comment
  RSA127358B  Solanum umbelliferum Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mts. overlooking Daly City near San Francisco. Comment
  RSA22395  Solanum umbelliferum L. S. Rose 1939-2-26 39016 San Mateo Emerald Lake. 183 Comment
  SBBG26835  Solanum umbelliferum L. S. Rose -Feb-1934 San Mateo Woodside Comment
  JROH4195  Solanum umbelliferum John Hunter Thomas 1989-5-11 24732 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near bridge on causeway, bridge separates two parts of lake Comment
  OBI9135  Solanum umbelliferum E. K. Balls 1948-3-19 7871 San Mateo Skyline Dr about 12 mi N of Santa Cruz 244 Comment
  CDA8732  Solidago canadensis A. Roach 1972-11-17 San Mateo Railroad right-of-way, South San Francisco. 0 Comment
  JEPS30890  Solidago elongata J. H. Thomas 1959-8-16 8065 San Mateo about 2 mi sw Pescadero 60 Comment
  CAS-BOT-BC365744  Solidago spathulata Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Motorcycle Ridge Comment
  CAS-BOT-BC365749  Solidago spathulata John H. Thomas 1961-5-12 9331 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC365185  Solidago velutina subsp. californica Miss E. Cannon No date on label s.n. San Mateo South San Francisco Hills Comment
  JROH1237  Solidago velutina subsp. californica John Hunter Thomas 1990-7-28 24938 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC365925  Soliva sessilis W. R. Dudley 1895-6-6 s.n. San Mateo Santa Cruz Peninsula. Near Pescadero Creek Comment
  UC909336  Soliva sessilis Ira L. Wiggins 1950-5-20 12352 San Mateo above Pescadero Beach Comment
  CAS-BOT-BC365934  Soliva sessilis Philip C. Wheeler 1965-5-17 s.n. San Mateo San Bruno Mountain. In Crocker Hills near Cow Palace Comment
  CAS-BOT-BC365938  Soliva sessilis R. S. Ferris 1925-5-1 4157 San Mateo Selah Chamberlain Residence, Woodside Comment
  JROH1239  Soliva sessilis John H. Thomas 1956-4-7 5610 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1257  Sonchus asper subsp. asper John H. Thomas 1974-8-11 17507 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1259  Sonchus asper subsp. asper John Hunter Thomas 1986-5-15 24043 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC374699  Sonchus oleraceus John H. Thomas 1965-4-29 10602 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC235286  Sorghum bicolor John H. Thomas 1968-10-13 14855 San Mateo Along Sandhill Road near Whiskey Hill Road. About 5 miles westward from the center of Palo Alto Comment
  CAS-BOT-BC235287  Sorghum bicolor J. H. Thomas 1959-11-19 8513 San Mateo Near Bayshore and University Avenue. East Palo Alto Comment
  CAS-BOT-BC236624  Spartina foliosa Le Roy Abrams 1900-10-1 1015 San Mateo Cooley Landing Comment
  CAS-BOT-BC236628  Spartina foliosa David D. Keck 1931-9-27 1270 San Mateo Dumbarton Bridge Comment
  CAS-BOT-BC236629  Spartina foliosa Ray Pestrong 1963-11-8 s.n. San Mateo In the marsh near East Palo Alto, Dumbarton Bridge, South San Francisco Bay Comment
  CAS-BOT-BC390013  Spergula arvensis Elizabeth McClintock; Walter Knight; Irja Knight 1963-9-2 s.n. San Mateo San Bruno Mountain. Top of ridge above Brisbane Comment
  JROH1761  Spergularia John Hunter Thomas 1983-4-3 21309 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  CDA24131  Spergularia macrotheca T. C. Fuller 1967-6-13 15939 San Mateo Half Moon Bay Harbor, north edge of the town of Half Moon Bay. 0 Comment
  CAS-BOT-BC390453  Spergularia macrotheca var. macrotheca J. H. Thomas 1954-5-28 4245 San Mateo Guadalupe Valley, about 2 miles south of San Francisco - San Mateo County line 30 Comment
  CAS-BOT-BC390452  Spergularia macrotheca var. macrotheca Philip C. Wheeler 1965-5-8 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  CAS-BOT-BC390469  Spergularia macrotheca var. macrotheca David D. Keck 1933-5-11 2297 San Mateo Montara Light House and Radio Station Comment
  CAS-BOT-BC390472  Spergularia macrotheca var. macrotheca G. B. Rossbach; R. P. Rossbach 1940-6-20 738 San Mateo 1 mile south of Montara Point Comment
  CAS-BOT-BC390473  Spergularia macrotheca var. macrotheca G. B. Rossbach; R. P. Rossbach 1937-11-25 610 San Mateo 3 mi. south of Half Moon Bay Comment
  JROH5582  Spergularia rubra John Rawlings 2013-7-13 1191 San Mateo Jasper Ridge Biological Preserve, Stanford University; a few yards downstream from the Low Flow Crossing 80 Comment
  CAS-BOT-BC390697  Spergularia rubra George Oberlander 1949-6-25 229 San Mateo San Francisco Watershed Reserve Comment
  SJSU15796  Stachys ajugoides Toni Corelli 2010-7-8 657 San Mateo Bean Hollow State Beach. On east side of Arryo de los Frijoles Trail. 10 Comment
  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
  UCD164462  Stachys ajugoides Peter Rubtzoff 1977-6-21 9067 San Mateo San Bruno Mountain. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon near upper rim. Comment
  UC702529  Stachys ajugoides var. ajugoides L. S. Rose 1941-10-24 41469 San Mateo Belmont 3 Comment
  JROH2901  Stachys bullata John Hunter Thomas 1977-6-16 18793 San Mateo Jasper Ridge Biological Preserve, Stanford University; along raised causeway Comment
  UC25937  Stachys bullata J. Burtt Davy 1895-4-20 1036 San Mateo Lake San Andreas Comment
  UC202802  Stachys chamissonis A. D. E. Elmer July 1903 4760 San Mateo Pilarcitos Stone Dam Comment
  POM126367  Stachys chamissonis Katherine Brandegee 1913-08 s.n. San Mateo Tobin Comment
Read comments
Feb 9 2022
  NY415795  Stachys quercetorum A. A. Heller 1907-5-28 8577 San Mateo Above Crystal Springs on the Half Moon Bay road Comment
  JROH2894  Stachys rigida var. quercetorum John Hunter Thomas 1978-4-20 19089 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1781  Stellaria media John H. Thomas 1975-4-19 17795 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC394055  Stellaria media Elizabeth McClintock 1967-4-16 s.n. San Mateo Buckeye Canyon; San Bruno Mountain Comment
  JROH1788  Stellaria nitens John H. Thomas 1958-2-15 6993 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC375908  Stephanomeria virgata George Oberlander 1950-7-15 1070 San Mateo San Francisco Watershed Reserve. On Cahill Ridge Comment
  CAS-BOT-BC375909  Stephanomeria virgata L. R. Abrams 1902-9-28 3002 San Mateo Sta [Santa] Cruz Mts Comment
  RSA223602  Stephanomeria virgata Elizabeth McClintock, Walter Knight, I. Knight 1967-8-1 s.n. San Mateo S side of Ridge Road, about 200 yards S of Parking Lot. San Bruno Mtns. Comment
  JROH5319  Stipa lepida Duncan M. Porter 1960-4-22 649 A San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of N-facing slope above Webb Ranch Comment
  JROH5322  Stipa lepida John H. Thomas 1967-5-31 12944 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5392  Stipa miliacea var. miliacea Ann Lambrecht 2004-7-20 11 San Mateo Jasper Ridge Biological Preserve, Stanford University. Off Trail 13, about 10 m from W end of Leonard's bridge, and about 2 m N of bridge. Comment
  SEINET958410  Stuckenia pectinata Ira L. Wiggins, R. S. Terris 1939-1 9293 San Mateo Ano Nuevo Point. Comment
  CAS-BOT-BC423016  Stylomecon heterophylla Philip C. Wheeler 1965-5-12 s.n. San Mateo San Bruno Mountain. South Canyon below western power lines. Comment
  CAS-BOT-BC271644  Symphoricarpos albus var. laevigatus George Oberlander 1950-3-18 590 San Mateo San Mateo Creek Comment
  CAS-BOT-BC271648  Symphoricarpos albus var. laevigatus John H. Thomas 1961-5-7 9267 San Mateo San Bruno Mountain in northern part of county 396 Comment
  UC1119937  Symphoricarpos albus var. laevigatus G. E. Sindel 1935-8-2 320 San Mateo Harrington Creek; Santa Cruz Quad. 274 Comment
  CAS-BOT-BC271649  Symphoricarpos albus var. laevigatus Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain Comment
  HSC5051  Symphyotrichum chilense L. S. Rose 1966-8-15 66083 San Mateo Pillar Point 2 Comment
  CAS-BOT-BC99053  Symphyotrichum chilense Alice Eastwood 1914-10-1 s.n. San Mateo Mussel Rock Comment
  CAS-BOT-BC99064  Symphyotrichum chilense Peter Rubtzoff 1975-10-4 8416 San Mateo San Bruno Mountain - on ridge northwest of Fog Forest Comment
  CAS-BOT-BC99083  Symphyotrichum chilense Le Roy Abrams 1900-10-1 1042 San Mateo Portola Comment
  CAS-BOT-BC99096  Symphyotrichum chilense W. R. Dudley 1897-10-11 s.n. San Mateo Near Half Moon Bay (Spanishtown) Comment
  RSA417609  Symphyotrichum chilense D. D. Keck 1931-9-27 1274 San Mateo Dumbarton bridge Comment
  UC1544807  Symphyotrichum subspicatum Almut G. Jones 1986-8-23 7251 San Mateo Near Half Moon Bay 50 Comment
  CDA34383  Tamarix parviflora E. Finley 1992-3-25 PDR 962382 San Mateo W side of Hwy 1. 0 Comment
  JROH1286  Taraxacum officinale John H. Thomas 1976-4-19 18084 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UC20515  Taraxia ovata J. Burtt Davy 1895-4-20 1018 San Mateo Millbrae Comment
  UC375428  Taraxia ovata R. L. Pendleton 1909-4-3 1342 San Mateo along creek 4 mi back of Stanford University; Los Tronchos Creek 144 Comment
  JEPS897  Tauschia kelloggii J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  JROH3911  Tellima grandiflora John H. Thomas 1970-5-16 15631 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC203041  Tellima grandiflora A. D. E. Elmer Jun 1903 4702 San Mateo Pescadero Comment
  CAS-BOT-BC447482  Tellima grandiflora George Oberlander 1950-5-21 877 San Mateo pilarcitas canyon Comment
  CAS-BOT-BC447483  Tellima grandiflora Le Roy Abrams 1901-5-1 1558 San Mateo Searsville-Bear Gultch Comment
  UCD96952  Tetragonia tetragonoides Beecher Crampton 1962-6-11 6517 San Mateo Pacifica, Rockaway Beach, State Hwy. 1. Comment
  RSA100996  Thermopsis californica var. californica G. Oberlander 1950-4-16 745 San Mateo East of Lower Crystal Springs Lake, San Francisco Watershed Reserve. Comment
  CAS-BOT-BC66656  Thysanocarpus curvipes J. H. Thomas 1954-5-7 4068 San Mateo Near Skyline Boulevard. About 2 miles southwest of Black Mountain. 655 Comment
  CAS-BOT-BC66661  Thysanocarpus curvipes John H. Thomas 1968-4-13 14290 A San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66674  Thysanocarpus curvipes John H. Thomas 1977-4-2 18507 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JROH1611  Thysanocarpus curvipes John Hunter Thomas 1987-4-4 24167 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Dam Comment
  JROH1618  Thysanocarpus curvipes John Hunter Thomas 1989-4-20 24642 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC66679  Thysanocarpus curvipes W. R. Dudley 1894-4-11 s.n. San Mateo Santa Cruz Peninsula. Slope near Menlo Park Reservoir. Comment
  CAS-BOT-BC447578  Tiarella trifoliata var. unifoliata Roland Block 1924-7-1 s.n. San Mateo King Mountain Comment
  JROH404  Torilis nodosa John Hunter Thomas 1991-5-2 25021 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM181976  Torreya californica Anonymous s.n. San Mateo Santa Cruz Mountains Comment
  SEINET10872331  Torreya californica Delzie Demaree 1933-6-23 Demaree 10393 San Mateo Red Wood Canyons. White House Creek. Comment
  CAS-BOT-BC172904  Toxicodendron diversilobum C. F. Leitholt 1901-3-16 s.n. San Mateo Los Trancos Creek, near Stanford University Comment
  JROH4755  Toxicoscordion fremontii John H. Thomas 1956-4-7 5604 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent slopes Comment
  UCR253355  Tragopogon porrifolius A. C. Sanders 2014-8-3 41235 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
  RSA134113  Tragopogon porrifolius John H. Thomas 1958-10-28 7493 San Mateo Near intersection of Bayshore Hwy and Main St. Redwood City. Comment
  RSA0035128  Trientalis europaea var. latifolia W. M. Arbaugh 1968-4-24 257 San Mateo Butano State Park. Comment
  RSA10319  Trientalis latifolia H. A. Barker 1929-5-1 544 San Mateo Kings Mt Comment
  HSC23914  Trientalis latifolia Mary Katherine Wicksten 1971-6-22 87 San Mateo Huddart Park, near Madrone Area Comment
  RSA79060  Trientalis latifolia E. K. Balls, Lee W. Lenz 1952-5-6 17097 San Mateo Old La Honda Road to Palo Alto, Ne from Hwy5. 305 Comment
  UCSC010357  Trifolium Dylan M. Neubauer 2016-5-19 690 San Mateo (SnFrB) Santa Cruz Mountains, headwaters of Waterman Creek, w of Hwy 9 423 Comment
  RSA634967  Trifolium albopurpureum Michael A. Vincent, Ethan H. Freid, Karl Vincent 1998-4-9 8202 San Mateo Along east side of Canada Road, ca. 200 yards southeast of its junction with Edgewood Road, just southwest of I-280, at Filoli Center. Comment
  SEINET11173447 Image available Trifolium albopurpureum A. A. Heller 1907-5-23 8554 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  UC16607  Trifolium albopurpureum var. dichotomum J. Burtt Davy 1893-6-17 774 San Mateo Belmont Comment
  UCD147019  Trifolium barbigerum Robert E. Preston 2011-6-16 2864 San Mateo Santa Cruz Mtns, Oil Creek watershed, 1.7 mi NW of Waterman Gap. 298 Comment
  UCSC005926  Trifolium buckwestiorum Randall Morgan 1996-5-18 2955 San Mateo Seed from Coal Mine Ridge Comment
  POM277948  Trifolium ciliolatum Lyman D. Benson 1930-5-3 2112 San Mateo Above Woodside, Mt. Range: Santa Cruz 366 Comment
  JEPS127789  Trifolium depauperatum var. truncatum Adam C. Schneider with C. Matt Guilliams 2013-4-7 60 San Mateo Along dirt road running parallel to overhead power transmission lines. GPS coordinates approximate. Comment
  JROH2277  Trifolium dubium John H. Thomas 1977-5-18 18614 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2279  Trifolium dubium John Hunter Thomas 1978-4-25 19150 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS127790  Trifolium fucatum Adam C. Schneider with C. Matt Guilliams 2013-4-7 61 San Mateo Along dirt road running parallel to overhead power transmission lines. GPS coordinates approximate. Comment
  JROH2290  Trifolium fucatum John H. Thomas 1973-4-14 16560 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2294  Trifolium fucatum John Hunter Thomas 1978-4-22 19103 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2303  Trifolium fucatum John Hunter Thomas 1986-4-9 23928 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG3006  Trifolium fucatum L. S. Rose 1935-5-4 San Mateo open hills, Burlingame Comment
  UC16515  Trifolium fucatum J. Burtt Davy 1893-6-17 769 San Mateo Belmont Comment
  JROH2316  Trifolium gracilentum John H. Thomas 1971-4-24 15776 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15444  Trifolium gracilentum var. gracilentum Toni Corelli 2010-5-13 603 San Mateo Pedro Point Headlands, Pacifica, CA, along South Ridge Trail 180 Comment
  JROH2321  Trifolium hirtum John Hunter Thomas 1982-5-18 20942 San Mateo Jasper Ridge Biological Preserve, Stanford University; old road now partly plowed up, near main gate Comment
  RSA212223  Trifolium hirtum L. S. Rose 1970-4-23 7003 San Mateo Skyline Blvd., w. of San Mateo 122 Comment
  UCSC005962  Trifolium macraei Randall Morgan 1995-6-6 2726 San Mateo Occasional at Bean Hollow State Beach Comment
  JROH2339  Trifolium microdon John H. Thomas 1964-4-19 10316 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville end of ridge Comment
  JROH2357  Trifolium subterraneum John Hunter Thomas 1986-4-22 23974 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2366  Trifolium subterraneum John Hunter Thomas 1989-4-20 24645 San Mateo Jasper Ridge Biological Preserve, Stanford University; new bridge below San Francisquito Creek below dam Comment
  UC2048924  Trifolium suffocatum Neal Kramer 2016-4-17 2169 b San Mateo Bean Hollow State Beach trail north of parking area. Comment
  JROH2386  Trifolium variegatum John Hunter Thomas 1978-4-20 19080 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG33492  Trifolium variegatum A. D. E. Elmer -May-1903 San Mateo Portola Comment
  JROH2401  Trifolium willdenovii John H. Thomas 1971-4-24 15777 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU1077  Trifolium willdenovii C. W. Sharsmith 1951-4-7 5828 San Mateo Woodside Hills, 3 mi W of Woodside 182 Comment
  JROH2408  Trifolium willdenovii John Hunter Thomas 1984-5-3 23332 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM207964  Trifolium wormskioldii Jens Clausen 1939-7-1 1746 San Mateo Ano Nuevo Point. Comment
  CAS-BOT-BC401045  Trillium J. Lovelle 1926-8-1 39 San Mateo Mt. Ellen Trail Comment
  JROH4733  Trillium chloropetalum John Hunter Thomas 1981-2-14 20225 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam area, redwood area Comment
  UC844442  Trillium chloropetalum Lewis S. Rose 1937-3-14 37001 San Mateo Emerald Lake 198 Comment
  CDA39377  Trillium chloropetalum A. C. Browne 1950-3-27 72 San Mateo Jasper Ridge. 0 Comment
  SD27761  Trillium chloropetalum Carl B. Wolf 1927-2-27 228 San Mateo I(c) mile inland from Pescadero. 14 Comment
  POM169971  Trillium chloropetalum var. chloropetalum C. F. Baker 1902-3-30 431 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC521062  Trillium chloropetalum var. giganteum Walter & Irja Knight 1965-3-21 995 San Mateo San Bruno Mountain Comment
  CAS-BOT-BC521063  Trillium chloropetalum var. giganteum Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC521074  Trillium chloropetalum var. giganteum W. R. Dudley 1894-3-24 s.n. San Mateo Santa Cruz Peninsula: Bank of Pescadero Creek Comment
  CAS-BOT-BC521204  Trillium chloropetalum var. giganteum Ira L. Wiggins 1931-2-21 5092 San Mateo Pescadero Beach Comment
  CAS-BOT-BC521208  Trillium chloropetalum var. giganteum Ira L. Wiggins 1928-4-14 2917 San Mateo Alpine Creek Road Comment
  RSA378200  Trillium chloropetalum var. giganteum L. J. Clemments s.n. San Mateo San Mateo Comment
  SEINET12044498  Trillium chloropetalum var. giganteum W. R. Dudley 1900-1 s.n. San Mateo S side Montana Mts, Santa Cruz Peninsula Comment
  SEINET12046255  Trillium chloropetalum var. giganteum C. F. Leithold 1894-1 s.n. San Mateo Santa Cruz Peninsula, Woodside Comment
  CAS-BOT-BC133436  Trillium ovatum Eric Walther 1920-5-9 s.n. San Mateo Woodside Comment
  CAS-BOT-BC133437  Trillium ovatum D. D. Davis 1903-5-1 s.n. San Mateo Near Pescadero, near Iversons Comment
  CAS-BOT-BC133442  Trillium ovatum Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  SD39137  Trillium ovatum Marie Cummings 1933-4-11 9 San Mateo Spring Valley. Comment
  JROH1648  Triodanis biflora H. L. Mason 1921-6-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS17979  Triphysaria eriantha subsp. rosea George B. Rossbach 1955-3-26 476 San Mateo next ridge n San Bruno Mt. (n San Mateo County); next ridge n of San Bruno Mt. 243 Comment
  CAS-BOT-BC238556  Triphysaria floribunda A. D. E. Elmer 1903-4-1 4522 San Mateo South San Francisco Comment
  CAS-BOT-BC238557  Triphysaria floribunda Walter Knight; Irja Knight 1965-4-24 1054 San Mateo San Bruno Mountain. Point San Bruno Comment
  CAS-BOT-BC238576  Triphysaria floribunda Roxana S. Ferris 1921-4-7 2134 San Mateo The Santa Cruz Mountain Peninsula. San Bruno Mt. 60 Comment
  CAS-BOT-BC238577  Triphysaria floribunda M. K. C. 1886-5-1 68 San Mateo Colma Comment
  UC311192  Triphysaria floribunda A. D. E. Elmer April, 1903 4522 San Mateo South San Francisco Comment
  UCR139346  Triphysaria floribunda David D. Keck 1932-5-6 1471 San Mateo San Francisco Bay Region, 1 mi south of San Mateo on Highway US 101 61 Comment
  SBBG40480  Triphysaria versicolor subsp. versicolor W. J. Dress 1951-5-12 San Mateo 4.5 mi N of Pigeon Point Comment
  CAS-BOT-BC200080  Trisetum canescens W. R. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs Lake Comment
  JROH4740  Triteleia hyacinthina John Hunter Thomas 1978-5-12 19201 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC526105  Triteleia ixioides subsp. ixioides Ray H. Yarris 1951-5-30 75 San Mateo Kings Mountain 152 Comment
  JROH4744  Triteleia laxa John H. Thomas 1963-5-12 10080 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4753  Triteleia laxa John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18305  Triteleia laxa Carl B. Wolf 1927-5-31 411 San Mateo North end of Searsville Lake. Comment
  SEINET7097931  Triteleia laxa A. G. Vestal 1937-6-15 s.n. San Mateo Lat. 37 14' 13ao N, Long. 122 24' 55ao W (NAD27 converted to WGS84 decimal degrees). Pebble Beach west of Pescadero. UTM Zone 10, 551863 mE, 4121109 mN. Comment
  CAS-BOT-BC526364  Triteleia laxa Philip C. Wheeler 1965-6-8 s.n. San Mateo Crocker Hills, San Bruno Mountain Comment
  CAS-BOT-BC526368  Triteleia laxa Ned Cahill 1974-5-30 311 San Mateo Near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City Comment
  CAS-BOT-BC526787  Triteleia laxa George Oberlander 1950-5-6 892 San Mateo Under Douglas Fir, Cahill Ridge Comment
  IRVC9054  Triteleia laxa P. W. Rundel 1963-6-11 1118 San Mateo San Fransisco Bay drainage area; Old La Honda Road. Santa Cruz Mountain Range 305 Comment
  SEINET12053810  Triteleia laxa M. T. Doutt 1931-1 412 San Mateo Skyline Blvd. W of Hellbrae Comment
  JEPS54258  Tropidocarpum gracile R. J. S. 1908-3-25 San Mateo Los Buellas hills Mt. Hamilton Range Comment
  POM204316  Typha angustifolia I. L. Wiggins 1929-7-4 3803 San Mateo Marsh near Pescadero Beach. Comment
  RSA10402  Typha angustifolia Carl B. Wolf 1927-6-15 2168 San Mateo Along Skyline Drive, 8 mi. S of San Francisco. Comment
  POM282152  Typha latifolia Lyman Benson 1931-5-29 2809 San Mateo Santa Cruz Mt. Range, Lake Searsville, upper end of lake. 244 Comment
  RSA149146  Ulex europaeus John H. Thomas 1961-5-7 9322 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  RSA254229  Ulex europaeus Robert A. Norris 1975-3-31 2292 San Mateo Near Crocker Avenue, San Bruno Mountains. Comment
  JROH4220  Ulmus minor John Hunter Thomas 1985-4-25 23559 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway Comment
  CAS-BOT-BC73689  Ulmus parvifolia John Thomas Howell 1966-7-24 41997 San Mateo Burlingame - in flower beds near planed trees, Trousdale Ave. just west of El Camino Real. Comment
  SJSU8201  Ulmus parvifolia M. E. Schauss 1978-10-10 San Mateo Sunset Publishing Co, Willow Rd, Menlo Park Comment
  JROH135  Umbellularia californica John H. Thomas 1959-8-22 8081 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  CAS-BOT-BC91221  Umbellularia californica W. R. Dudley 1894-11-24 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Big Redwood, Ramsay's Place, Searsville. Comment
  UC517991  Uropappus lindleyi Lewis S. Rose 1933-4-30 33127 San Mateo Redwood City Comment
  JEPS15041  Utricularia macrorhiza Roxana S. Ferris Oct. 1920 2103 San Mateo 2nd. mud lake Coalmine Ridge; Santa Cruz Mt. Peninsula, Coalmine Ridge Comment
  RSA174017  Vaccinium cespitosum R. F. Thorne, Percy C. Everett, K. Thorne 1963-6-9 32214 San Mateo On Kamchatka Point near TV tower on San Bruno Mountain. 335 Comment
  CAS-BOT-BC199355  Vaccinium ovatum Josephine D. Randall 1907-4-27 139 San Mateo Kings Mt. Comment
  JEPS58746  Vaccinium ovatum A. D. E. Elmer Apr 1903 4561 San Mateo Kings Mountain Comment
  CAS-BOT-BC199375  Vaccinium ovatum W. R. Dudley 1902-5-17 s.n. San Mateo King's [Kings] Mountain Ranch, King's [Kings] Mountain Comment
  POM131858  Vaccinium ovatum Stewart H. Burnham 1894-4-29 6701 San Mateo Outer Coast Range. Comment
  UCSC011286  Vaccinium ovatum Unknown 1972-6-4 s.n. San Mateo Waddell Creek area Comment
  JEPS90930  Vaccinium ovatum var. ovatum Dean W. Taylor 1988-4-29 9587 San Mateo n slope of San Bruno Mountain 0.3 mi n(22d)w of summit, summit of small hill (local botaniceal placename of Kamchatka Point), Santa Cruz Mountains San Bruno Mountain; Santa Cruz Mountains, San Bruno Mountain 371 Comment
  CAS-BOT-BC76137  Vancouveria planipetala A. D. E. Elmer 1903-5-1 4922 San Mateo On the Pescadero Creek, Iverson's Place. Comment
  POM177507  Vancouveria planipetala W. R. Dudley 1895-6-6 s.n. San Mateo By road in Redwoods this side of Iverson s near Peter s Creek. Comment
  HSC24036  Verbena lasiostachys Mary Katherine Wicksten 1971-7-12 168 San Mateo Huddart Park, near Archery Flat, along King's Mtn. Rd. Comment
  CAS-BOT-BC5096  Verbena prostrata L. R. Abrams 1914-6-2 5109 San Mateo unspecified Comment
  RSA82516  Verbena robusta J. T. Howell 1939-6-16 14745 San Mateo Crystal Springs Lake. Comment
  POM15417  Veronica americana Copeland 1903-6-16 s.n. San Mateo Montara Pt. [county not specified] Comment
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Jun 10 2012
  UC112848  Veronica americana Katharine Brandegee July 1908 San Mateo near San Pedro Comment
  CAS-BOT-BC157690  Veronica americana Peter Rubtzoff 1978-7-8 9231 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  CDA6415  Veronica persica Wm. Davis 1958-1-13 20 -58 San Mateo Half Moon Bay. 0 Comment
  JROH2425  Vicia americana subsp. americana Toni Corelli 2010-4-29 365 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 5 uphill 86 Comment
  SBBG30068  Vicia benghalensis J. T. Howell 1938-6-4 13886 San Mateo Burlingame Comment
  SD148148  Vicia tetrasperma G. K. Helmkamp, E. A. Helmkamp 2001-6-2 6769 San Mateo Central CA coast, Purissima Roas east of Half Moon Bay, 1.9 miles east of CA-1, disturbed roadside soil 167 Comment
  CAS-BOT-BC264036  Viola adunca W. R. Dudley 1894-3-28 s.n. San Mateo Near Pebble Beach, Pescadero Comment
  CAS-BOT-BC264037  Viola adunca W. R. Dudley 1894-3-28 s.n. San Mateo Near Pebble Beach, Pescadero Comment
  CAS-BOT-BC264043  Viola adunca Catherine A. Toschi 1963-3-17 63 :70 San Mateo San Bruno Mountain. NE slope below radio station Comment
  LA209918  Viola adunca Ira L. Wiggins; 1931-2-21 5091 a San Mateo Pescadero Beach Comment
  UCD110660  Viola adunca subsp. adunca A. A. Beetle 1939-3-31 1777 San Mateo Daly City. Comment
  PASA1525  Viola glabella San Mateo Kings Mt. Comment
  POM128420  Viola ocellata L. R. Abrams 1902-3-16 2276 San Mateo Kings Mountain. Comment
  RSA130815  Viola ocellata M. N. paulson 1917-04 s.n. San Mateo Kings Mt Road. Comment
  RSA130981  Viola ocellata H. L. Mason 1917-3-8 66 San Mateo Kings Mtn. Comment
  UC581538  Viola ocellata Herbert L. Mason 1927-4-23 3696 San Mateo Pescadero Creek near Bloomquists Mill; Pescadero Creek Comment
  RSA184886  Viola pedunculata L. S. Rose 1965-3-25 65009 San Mateo San Bruno Mountains, north end. 122 Comment
  RSA412720