Search Results — 2000 specimen records retrieved (1329 records with coordinates)
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Results for search: County=SAN MATEO; Source=All;   

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

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  SEINET11941811  Abronia latifolia Unknown 1932-1 9119 San Mateo Half Moon Bay Comment
  SD41440  Abronia umbellata Edith A. Purer 1934-8-14 5915 San Mateo Half Moon Bay. Comment
  UC577087  Abronia umbellata Lewis S. Rose 1935-10-12 35654 San Mateo Salada 3 Comment
  UCR253356  Acacia A. C. Sanders 2014-8-3 41230 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
  POM308816  Acaena pinnatifida var. californica I. L. Wiggins 1942-5-26 10096 San Mateo 2.5 miles S of Pescaderon, on the old Coast road Comment
  CAS-BOT-BC219605  Acanthomintha duttonii David D. Keck 1940-5-15 5034 San Mateo Emerald Lake, west of Redwood City Comment
  UC729637  Acanthomintha duttonii Carl B. Wolf 1929-5-24 3723 San Mateo above Upper Emerald Lake (back of Redwood City) Comment
  SEINET12276583  Acanthomintha ilicifolia L. S. Rose 1932-1 San Mateo Comment
  RSA0076539  Acanthomintha obovata subsp. duttonii Paul R. Hichborn 1920-6-1 s.n. San Mateo Back of Redwood City. 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-BC333291  Acer macrophyllum A. D. E. Elmer 1903-5-1 4509 San Mateo Portola Comment
  JROH157  Acer macrophyllum John H. Thomas 1974-11-5 17664 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail below dam 114 Comment
  JROH161  Acer macrophyllum John Hunter Thomas 1988-4-7 24380 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam; above San Francisquito Creek 87 Comment
  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-BC28766  Achillea millefolium K. L. Chambers 1984-6-14 5139 San Mateo San Gregorio State Beach, Highway 1. 30 Comment
  CAS-BOT-BC344838  Achillea millefolium Peter Rubtzoff 1977-6-21 9065 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  JEPS121480  Achillea millefolium Adam C. Schneider with C. Matt Guilliams 2013-4-7 94 San Mateo Crystal Springs Reservoir Comment
  JEPS28872  Achillea millefolium V. F. Hesse 1962-7-19 3165 San Mateo Pescadero Beach 4 Comment
  JEPS85554  Achillea millefolium Craig Dremann 1986-9-13 335 San Mateo (along Stage road between San Gregorio and Pompanio Creek) San Gregorio; Pompanio Creek Comment
  JROH445  Achillea millefolium John H. Thomas 1976-5-26 18148 San Mateo Jasper Ridge Biological Preserve, Stanford University 154 Comment
  UCSB8055  Achillea millefolium Myrick, Donald 1966-6-1 San Mateo Off Highway 1 south of San Francisco near Pescadero Comment
  HSC23987  Achillea millefolium Mary Katherine Wicksten 1971-6-24 109 San Mateo Huddart Park, side of park entrance Comment
  RSA302205  Achillea millefolium var. arenicola Jim Shevock 1970-11-25 550 San Mateo Along Hwy 1 9 Comment
  JROH457  Achyrachaena mollis John H. Thomas 1955-5-6 4981 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH461  Achyrachaena mollis John H. Thomas 1970-4-28 15607 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC29101  Achyrachaena mollis David D. Keck 1932-5-6 1489 San Mateo 4 miles west of Burlingame, at junction of Burlingame Rd and Skyline Blvd Comment
  JROH5888  Achyrachaena mollis Ruth Porter 1998-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2070  Acmispon glaber var. glaber D. E. Breedlove 1971-5-31 19376 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake 125 Comment
  JROH2079  Acmispon strigosus John H. Thomas 1975-4-18 17787 a San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC39809  Acmispon wrangelianus Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  JROH2093  Acmispon wrangelianus John H. Thomas 1966-4-24 11578 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2098  Acmispon wrangelianus John H. Thomas 1974-4-4 17078 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2103  Acmispon wrangelianus John Hunter Thomas 1980-4-10 19874 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5537616  Aconitum columbianum H. S. Gentry 1931-1 76 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC391673  Actaea rubra A. D. E. Elmer 1903-5-1 4703 San Mateo Butano Creek Comment
  JROH3399  Actaea rubra Shaun Donovan 1972-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Redwood area along San Francisquito Creek Comment
  CAS-BOT-BC391682  Actaea rubra Mrs. E. C. Sutliffe 1933-9-1 s.n. San Mateo Unspecified Comment
  POM148958  Actaea rubra subsp. arguta A. D. E. Elmer 1903-5-1 4703 San Mateo Butano Creek. Comment
  CAS-BOT-BC29292  Adenocaulon bicolor H. L. Mason 1921-7-1 s.n. San Mateo Butano Creek Comment
  CAS-BOT-BC139955  Adenostoma fasciculatum John H. Thomas 1971-5-2 15864 San Mateo Near intersection of Canada and Edgewater {Edgewood] roads, about 4 miles SW of center of Redwood City 304 Comment
  CAS-BOT-BC389683  Adenostoma fasciculatum Mary Wicksten 1969-6-24 s.n. San Mateo Miwok area - Huddart Park Comment
  UC662651  Adenostoma fasciculatum L. S. Rose 1941-6-12 41270 San Mateo hills w. Redwood City (Emerald Lake); Emerald Lake 120 Comment
  JROH3588  Adenostoma fasciculatum var. fasciculatum John H. Thomas 1975-6-5 17939 San Mateo Jasper Ridge Biological Preserve, Stanford University. Chaparral near shack 161 Comment
  RSA453174  Adenostoma fasciculatum var. fasciculatum L. S. Rose 1935-6-9 35212 San Mateo Emerald lake, W. of Redwood City. 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
  UC42038  Adiantum jordanii F. P. McLean 1873-1 San Mateo Pescadero Comment
  CAS-BOT-BC65673  Adiantum jordanii Elizabeth McClintock 1963-2-16 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC65674  Adiantum jordanii Walter Knight; Irja Knight 1965-4-25 1049 San Mateo in Owl's Canyon 182 Comment
  UCSB18581  Adiantum jordanii Muirhead, M. 1964-4-17 San Mateo Crocker Estate, Hillsborough 91 Comment
  CHSC112139  Aeonium simsii Dean Wm. Taylor; Alison E. L. Cowell 2005-4-26 19306 San Mateo Pacifica, sea bluffs betwween Shelter Cove and Pacifica State Beach. 16 Comment
  CAS-BOT-BC202668  Aesculus californica Phillip C. Wheeler 1965-5-12 s.n. San Mateo San Bruno Mountain. Canyon adjacent to Sierra Point Comment
  JROH2708  Aesculus californica John H. Thomas 1971-5-30 15972 San Mateo Jasper Ridge Biological Preserve, Stanford University 120 Comment
  UC1301057  Agoseris apargioides Helen K. Sharsmith 1963-2-16 5148 San Mateo Thornton Beach San Francisco Bay Region, Thornton Beach Comment
  SD41371  Agoseris apargioides Edith A. Purer 1933-8-25 5515 San Mateo Sand dunes, near Skyline Drive. Comment
  UCD128597  Agoseris grandiflora W. A. Harvey; J. M. Tucker 1948-6-29 9782 San Mateo Beside road to Portola State Park, just west of junction with Highway 5 (Skyline Boulevard). Comment
  CAS-BOT-BC22977  Agoseris grandiflora var. grandiflora Ned Cahill 1974-5-30 326 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH479  Agoseris grandiflora var. grandiflora John H. Thomas 1967-5-31 12936 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH480  Agoseris grandiflora var. grandiflora John H. Thomas 1967-6-1 12959 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH493  Agoseris heterophylla John Hunter Thomas 1981-5-8 20556 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-BC46173  Agoseris heterophylla John H. Thomas 1971-5-2 15816 San Mateo Near intersection of Canada Road and Edgewater [sic]Road, about three miles westward from Redwood City 152 Comment
  CAS-BOT-BC46174  Agoseris heterophylla John H. Thomas 1974-4-11 17137 San Mateo To the SE of Canada Road and Edgewood Road. NW of Woodside. 152 Comment
  RSA416446  Agoseris hirsuta Edith A. Purer 1933-8-25 5515 San Mateo Sand dunes, near Skyline Drive Comment
  RSA128659  Agrostis avenacea P. H. Raven 1950-6-2 2272 San Mateo On the stand of San Andreas Lake. Comment
  UCD164198  Agrostis capillaris Peter Rubtzoff 1978-7-8 9223 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Upper part of East Fork Colma Creek Canyon area. Comment
  POM207320  Agrostis densiflora E. B. Copeland 1903-8-13 3308 San Mateo Montara Point. Comment
  SJSU15843  Agrostis densiflora John Rawlings, Toni Corelli 2014-8-13 1205 San Mateo Coastal bluff just west of Hwy 1, north of Pomponio State Beach 36 Comment
  CAS-BOT-BC127381  Agrostis exarata Michener; Bioletti 1893-6-1 132 San Mateo South Pilarcitos. Comment
  JROH4783  Agrostis exarata W. Lennihan 1990-5-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Mapache trail, 100 yards south of Trail 10, right side of trail. 112 Comment
  CAS-BOT-BC139461  Agrostis hallii Margaret A. Barry 1937-6-22 177 San Mateo Coal Mine Ridge. Comment
  RSA119335  Agrostis microphylla S. S. Tillett, I. Sternback 1956-6-25 545 San Mateo On Middleton property S of road to Portola State Park, just before entrance; in secondary redwood forest. 396 Comment
  CAS-BOT-BC138977  Agrostis pallens Henry E. Wieser 1922-6-4 s.n. San Mateo Black Mountain Road. Hillsborough Hills near Burlingame. Comment
  SEINET11673837  Agrostis pallens H. E. Weiser 1932-1 s.n. San Mateo Black Mtn Road, Hillsborough Hills, near Burlingame Comment
  RSA290667  Agrostis stolonifera Lyman Benson 1937-7-20 8462 San Mateo Menlo Park, San Francisco Bay. Lawn at 736 Partridge Ave. 30 Comment
  JROH4157  Ailanthus altissima John H. Thomas 1980-11-18 20172 San Mateo Jasper Ridge Biological Preserve, Stanford University 98 Comment
  JROH5641  Aira caryophyllea John Rawlings 2014-6-2 1253 San Mateo Jasper Ridge Biological Preserve, Stanford University; Red Hot Poker Meadow north of Bear Creek and ~ 50 meters east of the Sand Hill Rd. fenceline 102 Comment
  RSA195578  Aira caryophyllea John H. Thomas 1966-4-22 11570 San Mateo Jasper Ridge Biological Experimental Area. About 5 miles SW of Palo Alto. Comment
  CAS-BOT-BC138230  Aira caryophyllea var. caryophyllea Fred Hemphill 1973-4-22 845 San Mateo San Carlos. North of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC138240  Aira caryophyllea var. caryophyllea Margaret A. Barry 1937-5-15 105 San Mateo Coal Mine Ridge. Comment
  JROH4302  Alisma triviale Toni Corelli 2005-8-10 301 San Mateo Jasper Ridge Biological Preserve, Stanford University; offshoot of main creek in wet area along new bridge near beginning of trail 12 109 Comment
  JROH4545  Allium amplectens John Hunter Thomas 1986-5-8 24028 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12049324  Allium amplectens H. L. Mason 1921-1 s.n. San Mateo Jasper Ridge Comment
  SJSU6178  Allium dichlamydeum S. H. Casey 1969-5-18 246 San Mateo near Fern Rock, San Bruno Mt Comment
  UC766744  Allium lacunosum R. F. Hoover 1941-4-23 4910 San Mateo Redwood City hills Comment
  CAS-BOT-BC132030  Allium peninsulare var. franciscanum L. R. A. 1902-5-4 2411 San Mateo Woodside Comment
  JROH4558  Allium peninsulare var. franciscanum John H. Thomas 1971-5-30 15963 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4562  Allium triquetrum John Rawlings, Toni Corelli 2012-5-15 1122 San Mateo Jasper Ridge Biological Preserve, Stanford University. West bank of Bear Creek at its crossing of Road H near boundary fence. 82 Comment
  CAS-BOT-BC474306  Allium unifolium L. R. Abrams 1922-5-25 s.n. San Mateo Emerald Lake, back of Redwood City Comment
  SEINET12044628  Allium unifolium R. S. Ferris 1921-1 2183 San Mateo New Year's Pt Comment
  UC1108513  Alopecurus saccatus James McMurphy 1906-5-8 San Mateo pond near head of Crystal Springs Lakes Comment
  UCR242715  Amaranthus deflexus A. C. Sanders 2012-11-11 40517 San Mateo SF Bay Area, Daly City near Colma, between Junipero Serra Blvd. and San Pedro Rd. on Washington St. 56 Comment
  JROH179  Amaranthus retroflexus John H. Thomas 1974-10-29 17651 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD97767  Amaranthus retroflexus John Thomas Howell 1978-7-18 53187 San Mateo McClellan residence, 1356 Bernal Ave., Burlingame. Comment
  UC579657  Ambrosia chamissonis N. K. Carlson 1935-7-5 120 San Mateo s of Pescadero; Santa Cruz Quadrangle, Bolsa Point 0 Comment
  SEINET11855110  Ambrosia chamissonis Unknown 1932-1 9245 San Mateo Half Moon Bay Comment
  SEINET11855123  Ambrosia chamissonis L. S. Rose 1935-1 San Mateo Granada 3 Comment
  UC1206489  Ambrosia psilostachya L. R. A. 1902-9-21 2992 San Mateo Crystal Lake Comment
  CAS-BOT-BC55575  Ambrosia psilostachya Elizabeth McClintock; Paul Reeberg 1988-10-11 s.n. San Mateo San Bruno Mountains, north of Kennedy School 198 Comment
  UCSC007716  Ammophila arenaria Becky Hendricks, Shayne Coppedge 2012-5-18 s.n. San Mateo Ano Nuevo State Park Comment
  JROH1341  Amsinckia intermedia John Hunter Thomas 1983-4-5 21321 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing 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
  JROH1344  Amsinckia menziesii John H. Thomas 1966-4-29 11589 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC57069  Amsinckia spectabilis var. spectabilis Steven Triano 1988-5-24 213 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  RSA18466  Anagallis arvensis Carl B. Wolf 1927-6-29 542 San Mateo South of Pebble Beach near Pescadero. Comment
  JROH3373  Anagallis minima John H. Thomas 1973-4-14 16563 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC45192  Anaphalis margaritacea Josephine D. Randall 1907-7-23 47 San Mateo Near Crystal Springs Lake Comment
  UCR254763  Anaphalis margaritacea Peter Rubtzoff 1978-9-16 9270 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 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
  CAS-BOT-BC45184  Anaphalis margaritacea Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain, east facing slope below parking lot Comment
  CAS-BOT-BC45189  Anaphalis margaritacea R. E. Frenkel 1964-8-21 754 San Mateo On Spring Valley Ridge Road at the junction of Spring Valley Ridge and Whiting Ridge Roads, SFWD. 347 Comment
  RSA246189  Anaphalis margaritacea E. K. Balls 1969-9-18 12173 San Mateo 6 mi. S along the La Honda Road (Hwy 84) past jct. hwy 84 and hwy 35. Beside San Gergorio Creek. 137 Comment
  RSA249495  Anaphalis margaritacea John F. Emmel 1971-9-6 388 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. 99 Comment
  CAS-BOT-BC391919  Anemone grayi E. A. McGregor 1908-3-28 s.n. San Mateo Kings Mt. Comment
  POM87778  Anemone grayi L. R. Abrams 1902-3-16 2275 San Mateo Kings Mountain. Comment
  CAS-BOT-BC391920  Anemone grayi unspecified 1906-6-10 s.n. San Mateo Near King's Mt. House Comment
  CAS-BOT-BC221454  Angelica hendersonii James McMurphy 1909-10-8 s.n. San Mateo Arroyo de los Fryoles Comment
  CAS-BOT-BC221455  Angelica hendersonii W. R. Dudley 1909-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Mussel Rock Comment
  RSA246844  Angelica hendersonii R. F. Thorne, P. Everett 1965-8-1 35077 San Mateo 21.5 miles S of Golden Gate Bridge. 69 Comment
  CAS-BOT-BC273179  Anisocarpus madioides W. R. Dudley 1895-9-15 s.n. San Mateo Santa Cruz Mountain Peninsula. El Corte Madera Creek near Lumber Camp Comment
  CAS-BOT-BC273184  Anisocarpus madioides W. R. Dudley 1895-6-5 s.n. San Mateo Unspecified Comment
  CAS-BOT-BC273185  Anisocarpus madioides W. R. Dudley 1894-7-7 s.n. San Mateo Santa Cruz Mountain Peninsula. Summit - head of Bear Gulch Road Comment
  JEPS13142  Anthemis cotula W. L. Jepson 1928-7-11 12939 San Mateo Redwood City 3 Comment
  CAS-BOT-BC280638  Anthoxanthum occidentale L. R. A. 1902-1-7 2258 San Mateo Kings Mountain 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
  JROH193  Anthriscus caucalis John H. Thomas 1966-4-22 11571 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH196  Anthriscus caucalis John H. Thomas 1973-4-14 16554 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR101615  Anthriscus caucalis George K. Helmkamp, E. A. Helmkamp 1998-5-16 3745 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  RSA101012  Anthriscus caucalis G. Oberlander 1950-4-16 735 San Mateo Lower Crystal Springs Lake, San Francisco Watershed Reserve Comment
  RSA128575  Anthriscus caucalis P. H. Raven 1950-6-3 2239 San Mateo Woods around San Andres Lake 122 Comment
  JROH3607  Aphanes occidentalis John Hunter Thomas 1981-4-5 20266 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  UC306538  Apiastrum angustifolium A. D. E. Elmer June, 1903 4461 San Mateo southern end of Crystal Springs Lake Crystal Springs Lake Comment
  SEINET11080240  Apium leptophyllum J. T. Howell 1975-9-13 51507 San Mateo Burlington, Hillside Street just W of El Camino. Comment
  CAS-BOT-BC392061  Aquilegia eximia Geis 1901-7-29 s.n. San Mateo Road to Spring Valley Dam Comment
  CAS-BOT-BC17320  Arabis blepharophylla Alice Eastwood 1913-2-22 2453 San Mateo San Bruno Hills. Comment
  CAS-BOT-BC17331  Arabis blepharophylla Lewis S. Rose 1961-4-5 61032 San Mateo San Bruno Mountains. 365 Comment
  CAS-BOT-BC17335  Arabis blepharophylla Reed Clark Rollins 1941-3-22 2950 San Mateo San Bruno Hills, 2 miles southeast of Daly City. Comment
  CAS-BOT-BC17340  Arabis blepharophylla Roxana S. Ferris 1920-3-8 1763 San Mateo Montara Mountains in vicinity of South Peak. 518 Comment
  CAS-BOT-BC171636  Aralia californica Eric Walther 1919-7-4 s.n. San Mateo Woodside Comment
  UC396977  Aralia californica Fred Gianocca 1929-11-8 San Mateo Half Moon Bay Comment
  RSA112474  Aralia californica Theo C. Zschokke 1903-7-10 s.n. San Mateo Goat Ranch Road, Corte de Madera Cr. Comment
  SEINET10454399  Aralia californica Mary Susan Taylor 1978-8-30 Taylor 1853 San Mateo Comment
  JROH1920  Arbutus menziesii John H. Thomas 1974-5-29 17397 San Mateo Jasper Ridge Biological Preserve, Stanford University; near riders' shack Comment
  SEINET11987325  Arctostaphylos andersonii J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4206 San Mateo from Strybing Arboretum, Golden Gate Park, San Francisco, originally from King's Mountain Comment
  CAS-BOT-BC23503  Arctostaphylos crustacea Roxana S. Ferris 1918-3-27 738 San Mateo La Honda Road Comment
  CAS-BOT-BC23504  Arctostaphylos crustacea Josephine D. Randall 1906-3-9 137 San Mateo Road to King's Mt. Comment
  CAS-BOT-BC23509  Arctostaphylos crustacea L. S. Rose 1942-3-30 42007 San Mateo Rocky brushy hills, Kings Mountain 600 Comment
  CAS-BOT-BC23548  Arctostaphylos crustacea Robert Francis Hoover 1941-2-12 4763 San Mateo Northwest of Saratoga Summit Comment
  SEINET11989199  Arctostaphylos crustacea E. McClintock, Knight, W.; Knight, I. 1982-1 4646 San Mateo San Pedro County Park, near Pacifica Comment
  JROH1929  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1970-4-29 15612 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1943  Arctostaphylos crustacea subsp. crustacea John Hunter Thomas 1987-4-30 24210 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG83928  Arctostaphylos crustacea subsp. crustacea R. Gankin 1959-2-22 322 San Mateo 2.8 mi from jct with Hwy 5 on King's Mtn Rd Comment
  CAS-BOT-BC24483  Arctostaphylos imbricata Arthur L. Menzies 1963-3-9 s.n. San Mateo On ridge below se. end of parking lot. San Bruno Hills. Comment
  CAS-BOT-BC24484  Arctostaphylos imbricata Arthur L. Menzies 1962-2-25 s.n. San Mateo San Bruno Mt. Comment
  CAS-BOT-BC24492  Arctostaphylos imbricata Arthur L. Menzies 1963-3-10 s.n. San Mateo San Bruno Hills, on far ridge se. of parking lot. Comment
  UCD50868  Arctostaphylos imbricata James Roof 1961-4-18 San Mateo From the northeast face of San Bruno Mt. 335 Comment
  CAS-BOT-BC40168  Arctostaphylos montaraensis Arthur Menzies 1963-2-5 6 San Mateo San Bruno Mountain Comment
  UC21802  Arctostaphylos montaraensis J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  UCD51770  Arctostaphylos montaraensis Roman Gankin; W. R. Hildreth 1966-5-17 738 San Mateo Southeast-facing slope of Montara Mountain. Comment
  SEINET11989280  Arctostaphylos montaraensis R. Gankin, Hildreth, W. R. 1966-1 738 San Mateo Montara Mountain Comment
  CAS-BOT-BC44740  Arctostaphylos regismontana L. R. Abrams 1902-1-12 2254 San Mateo Kings Mountain Comment
  CDA28982  Arctostaphylos regismontana D. G. Kelch 2009-6-9 9 .395 San Mateo Santa Cruz Mtns.; King s Mtn. Rd. N of Summit Springs. Comment
Read comments
Aug 22 2011
  JEPS78657  Arctostaphylos regismontana Edward Lee 1936-1-26 1736 San Mateo junction King's Mt. Rd. and Skyline Blvd (summit of ridge); Cahill Ridge 609 Comment
  POM367228  Arctostaphylos regismontana L. S. Rose 1938-2-23 38083 San Mateo Kings Mountain. 640 Comment
  RSA636740  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24633 San Mateo NW side of Montara Mtn. 150 Comment
  UC1120835  Arctostaphylos regismontana A. E. Wieslander and B. O. Schreiber 1940-3-5 10 San Mateo road from Woodside to King's Mt.; Santa Cruz Quadrangle 609 Comment
  UC1120846  Arctostaphylos regismontana C. M. Belshaw 1935-1-25 1466 San Mateo Kings Mt. Rd 4.7 mi w Woodside; Santa Cruz Quadrangle 609 Comment
  UC750515  Arctostaphylos regismontana Lewis S. Rose 1947-3-11 47028 San Mateo type locality Kings Mountain 609 Comment
  UC763116  Arctostaphylos regismontana R. F. Hoover 1939-3-3 3899 San Mateo Kings Mountain Comment
  RSA29505  Arctostaphylos regismontana E. K. Balls, Percy C. Everett 1953-10-16 18678 San Mateo 27.3 mi SE of San Francisco- San Mateo Co. Line on Hwy 5. 670 Comment
  CAS-BOT-BC44670  Arctostaphylos sensitiva W. R. Dudley 1906-3-10 s.n. San Mateo By road S. W. of Crystal Spr Reservoir. - Santa Cruz Mountain Peninsula Comment
  UCD166075  Arctostaphylos tomentosa Jack Major; M. Forde and S. Bamberg 1962-4-3 731 San Mateo Ano Nuevo Point. (Exact location unknown. Coordinates estimated by label maker). Comment
  RSA380889  Arctostaphylos tomentosa subsp. crinita Roman Gankin 1966-5-17 739 San Mateo ca. .4 mile northeast of Peak Mountain of Montara Mountain range. 488 Comment
  JEPS48596  Arctostaphylos tomentosa subsp. crustacea James G. Daly 1934-1 571 San Mateo San Gregorio watershed Santa Cruz Mts. (sw San Mateo Co.) Comment
  POM222790  Arctostaphylos tomentosa subsp. crustacea S. S. Berry 1909-2-27 s.n. San Mateo Jasper Ridge. 168 Comment
  RSA636850  Arctostaphylos tomentosa subsp. crustacea S. H. Gudmonson 1978-3-22 18 San Mateo 2 miles north of Woodside Road on Kings Mountain Road. Comment
  UC1042396  Arctostaphylos tomentosa subsp. crustacea Lewis S. Rose 1949-3-18 49006 San Mateo hills w Belmont 91 Comment
  POM286194  Arctostaphylos tomentosa subsp. tomentosiformis Lyman Benson 1935-3-10 6255 San Mateo La Honda Grade. 518 Comment
  SEINET11989278  Arctostaphylos tomentosa var. tomentosiformis Unknown 1966-1 739 San Mateo ca 0.4 mi NE of Peak Mountain of Montara Mountain range 488 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
  SJSU6464  Arctostaphylos uva-ursi S. H. Casey 1969-5-18 264 San Mateo Kamchatka Point, San Bruno Mt Comment
  UCD51963  Arctostaphylos uva-ursi Robert F. Thorne 1963-6-9 32218 San Mateo Prostrate shrub in north coastal scrub on top of San Bruno Mt. near TV tower. Comment
  UCD52151  Arctostaphylos uva-ursi Walter and Irja Knight; Robert and Janet Blomquist 1981-7-3 4426 San Mateo Kamchatka Point, San Bruno Mt., San Mateo County, California. Comment
  SEINET11987331  Arctostaphylos uva-ursi J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4212 San Mateo Strybing Arboretum, Golden Gate Park, San Francisco, orig. from San Bruno Mt., near Pacific Rock Comment
  SEINET11987482  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4200 San Mateo Strybing Arboretum, Golden Gate Park, San Francisco, orig. from Samoa Sand Spit Comment
  SEINET11987339  Arctostaphylos uva-ursi var. suborbiculata J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4066 San Mateo Strybing Arboretum, San Francisco, Golden Gate Park, orig. from Kamchatka Point on San Bruno Mt Comment
  SEINET11989128  Arctostaphylos uva-ursi var. suborbiculata W. Knight, Knight, I. 1981-1 4540 San Mateo Kamchatka Point, San Bruno Mountain 351 Comment
  SEINET11989211  Arctostaphylos uva-ursi var. suborbiculata E. McClintock, Knight, W.; Knight, I. 1982-1 4630 San Mateo windy Kamchatka Point, San Bruno Mountain Comment
  CAS-BOT-BC47706  Armeria maritima subsp. californica J. H. Thomas 1963-8-4 10237 San Mateo Just north of Pigeon Point Light House Comment
  SJSU4470  Armeria maritima subsp. californica S. R. Piazza 1963-6-27 San Mateo by lighthouse , Hwy 1, 2 mi N of Pigeon Point Comment
  JROH512  Arnica discoidea Herbert L. Mason 1921-5-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Redwood area Comment
  JROH4837  Arrhenatherum elatius Toni Corelli 2006-5-6 310 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road past Searsville Lake beach in disturbed grassy area, under large valley oak 106 Comment
  POM288964  Artemisia biennis Lyman Benson 1928-11-25 788 San Mateo Stanford Univ-- Lake Searsville. Santa Cruz Mts. 152 Comment
  RSA116788  Artemisia biennis Roxana S. Ferris 1924-10-6 4096 San Mateo Searville Lake on Portola Hwy. Comment
  RSA177002  Artemisia californica John H. Thomas 1964-11-29 10538 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of palo Alto. E end of Searsville Dam Comment
  RSA94535  Artemisia californica F. W. Peirson 1925-9-13 6429 San Mateo Rockaway beach. Comment
  CAS-BOT-BC93931  Artemisia douglasiana Walter Knight; Irja Knight 1963-10-7 326 San Mateo San Bruno Mountain, Cow Trough Ravine Comment
  CAS-BOT-BC93935  Artemisia douglasiana Gordon H. True 1937-7-23 803 San Mateo Along Salada Beach - Skyline Blvd. Road Comment
  HSC4721  Artemisia douglasiana L. S. Rose 1969-8-8 69090 San Mateo Skyline Blvd. and Half Moon Bay Rd; Cahill Ridge 244 Comment
  UCSC007719  Artemisia douglasiana Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  SEINET8734602 Image available Artemisia heterophylla Lewis S. Rose 1938-1 38232 San Mateo San Mateo 30 Comment
  SACT000356  Arundo donax Malcolm Nobs, S. Smith 1949-8-25 San Mateo on bank in marsh, 6-12 feet tall, with typha, scirpus, potameton, polygonum, and lactuca. Brackish marsh Comment
  CAS-BOT-BC400509  Asarum caudatum Roxana S. Ferris 1920-4-26 1962 San Mateo Santa Cruz Mountain Peninsula. Near mouth of canyon of Pescadero Creek 243 Comment
  CAS-BOT-BC478065  Asteraceae H. A. Dutton 1900-5-6 s.n. San Mateo Santa Cruz Mountain Peninsula, Woodside Comment
  UC136769  Astragalus douglasii var. douglasii C. F. Baker 1903-6-30 3358 San Mateo Pillar Point Comment
  CAS-BOT-BC186753  Astragalus gambelianus Lois E. James 1946-4-16 1741 San Mateo Back of Redwood City. High Road off Woodside Road Comment
  CAS-BOT-BC186762  Astragalus gambelianus John H. Thomas 1971-5-2 15822 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  CAS-BOT-BC186770  Astragalus gambelianus Lewis S. Rose 1956-7-2 56113 San Mateo Skyline Blvd., hills w. of San Mateo 182 Comment
  JROH1996  Astragalus gambelianus John Hunter Thomas 1984-4-2 23273 3 C San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge fence Comment
  UC13429  Astragalus gambelianus J. Burtt Davy 1893-6-17 785 San Mateo Belmont 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
  RSA60159  Astragalus gambelianus Lois E. James 1947-4-11 1758 San Mateo Hills back of Redwood City. Comment
  RSA90716  Astragalus nuttallii F. W. Peirson 1925-9-13 6424 San Mateo Rockaway Beach Comment
  CAS-BOT-BC177975  Astragalus nuttallii var. virgatus R. S. Ferris 1921-5-29 2185 San Mateo Pescadero, Pebble Beach Comment
  UCD35773  Astragalus nuttallii var. virgatus Beecher Crampton 1962-6-11 6495 San Mateo Pacifica, north city limits, along State Hwy. 1 just southwest of its junction with Skyline Blvd. Comment
  SEINET5326017  Astragalus nuttallii var. virgatus A. A. Heller 1906-6-8 8385 San Mateo Near Ocean View, San Francisco Comment
  JEPS15533  Astragalus pycnostachyus G. Thomas Robbins 1956-8-18 3737 San Mateo on slope above Pomponio Creek at its mouth at the Pacific Ocean; on slope above Pomponio Creek Comment
  CAS-BOT-BC193093  Astragalus pycnostachyus var. pycnostachyus Alice Eastwood; John Thomas Howell 1938-6-26 6057 San Mateo Near Pescadero Comment
  SBBG114454  Astragalus pycnostachyus var. pycnostachyus D. Wilken with E. Painter, M. Wetherwax 2000-7-29 15844 San Mateo dike at edge of freshwater marsh, 0.9 km ESE of mouth of Pescadero Crk estuary 10 Comment
  SEINET10532282  Athyrium filix-femina Mary Susan Taylor 1978-8-30 Taylor 1859 San Mateo Comment
  CAS-BOT-BC66142  Athyrium filix-femina var. cyclosorum John Thomas Howell 1926-10-9 2218 San Mateo Near Lake San Andreas Comment
  CAS-BOT-BC17584  Athysanus pusillus C. F. Baker 1902-4-6 456 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC170572  Atriplex John H. Thomas 1968-10-6 14844 San Mateo Vicinity of railroad tracks and Dumbarton Bridge casueway entrance. East of Palo Alto. Comment
  JEPS10202  Atriplex californica Rimo Bacigalupi with G. T. Robbins 1954-6-18 4555 San Mateo 2.5 mi sw Pescadero (edge of beach at foot of sea cliff Pebble Beach); Pebble Beach, sw of Pescadero Comment
  UC1191360  Atriplex hortensis Malcolm A. Nobs, S. Galen Smith 1949-8-27 1619 San Mateo salt marshes e Redwood City; e of Redwood City Comment
  POM177453  Atriplex subspicata L. R. Abrams, I. Wiggins 1930-11-13 177 San Mateo Junction of Skyline Blvd. and Coast Road near Colma. Comment
  CDA1739  Avena barbata T. C. Fuller 1971-6-1 19879 San Mateo 1.6 km. east of San Gregorio. 0 Comment
  CAS-BOT-BC145956  Avena fatua George Oberlander 1950-4-23 862 San Mateo San Francisco Watershed Reserve. San Andreas Valley. 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
  CAS-BOT-BC98695  Baccharis douglasii Josephine D. Randall 1907-7-23 57 San Mateo Near Crystal Springs Lake - Santa Cruz Peninsula Comment
  CAS-BOT-BC99536  Baccharis pilularis Carl B. Wolf 1934-11-9 6240 San Mateo 200 yds. south of Pigeon Point Lighthouse 15 Comment
  POM289736  Baccharis pilularis Lyman Benson 1934-12-15 6215 San Mateo Creek Hills; Santa Cruz Mt. Range; Corte Madera Creek Watershed 152 Comment
  JROH554  Baccharis pilularis subsp. consanguinea John Hunter Thomas 1988-10-17 24599 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC16642  Barbarea orthoceras W. R. Dudley 1900-3-18 s.n. San Mateo Santa Cruz Peninsula. Near head of San Andreas Lake. Comment
  JEPS42530  Barbarea orthoceras William Hirano 1966-3-8 San Mateo a short distance below and ne end of paved road at ridge summit (television stations) San Bruno Mtn. 335 Comment
  JROH1442  Barbarea orthoceras John H. Thomas 1973-6-15 16843 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR271407  Barbarea orthoceras John F. Emmel 2001-4-21 1697 San Mateo Central Coast, Montara Mountain, along utility line clearing in drainage between North Peak and South Peak, 0.2 air mile north and 0.0-0.1 air mile east of the summit of South Peak 518 Comment
  JROH3928  Bellardia trixago John Hunter Thomas 1988-6-6 24510 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Lakeside Laboratory Comment
  RSA152071  Bellardia trixago John H. Thomas 1961-5-5 9223 San Mateo Along Sandhill road about 3.5 miles westward from Stanford Univ. 91 Comment
  CAS-BOT-BC75876  Berberis pinnata John H. Thomas 1958-2-15 6990 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 182 Comment
  CAS-BOT-BC75880  Berberis pinnata George Oberlander 1949-4-17 70 San Mateo San Francisco Watershed Reserve. Near Pilarcitos Lake. Comment
  UC306615  Berberis pinnata A. D. E. Elmer April, 1903 4820 San Mateo San Bruno Hills Comment
  JROH1322  Berberis pinnata subsp. pinnata John Rawlings 2007-4-1 0909 San Mateo Jasper Ridge Biological Preserve, Stanford University. Intersection Trail 1 and Trail 5. 84 Comment
  RSA140621  Beta vulgaris John H. Thomas 1960-6-25 8796 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street. alt. below 25 feet. 8 Comment
  UCD129560  Bidens pilosa Norman Frazier 1941-12-4 s.n. San Mateo along Highway, 1/2 mile east of Half Moon Bay. Comment
  CAS-BOT-BC31089  Bolboschoenus maritimus Ira L. Wiggins 1973-7-29 22056 San Mateo Sandy bed of of San Francisquito Creek, ca 80 m upstream from Pope St Bridge Comment
  CAS-BOT-BC31092  Bolboschoenus maritimus George Thomas Oberlander 1949-7-24 311 San Mateo Marsh, Upper Crystal Spr. Lake Comment
  CAS-BOT-BC95345  Bowlesia incana George Oberlander 1950-5-21 963 San Mateo Southern boundary of San Francisco Watershed Reserve 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
  UCD57119  Brachypodium distachyon Peter H. Raven 1957-6-30 11015 San Mateo 1.8 miles east of Pescadero on road to La Honda. Comment
  CDA36482  Brachypodium sylvaticum Ellen Gartside 2011-7-18 s.n. San Mateo Woodside; Martinez Rd., north edge of corral. Comment
  JEPS26851  Brassica nigra Rimo Bacigalupi with J. H. Thomas and L. R. Heckard 1961-5-23 7714 San Mateo along Alpine Road near site of abandoned Alpine School Alpine School; Alpine Road 487 Comment
Read comments
Mar 12 2009
  CAS-BOT-BC36667  Brassica oleracea John H. Thomas 1971-4-25 15791 San Mateo Intersection of Interstate 280 and Sand Hill Road behind Stanford University Campus. Comment
  JROH1465  Brassica rapa John H. Thomas 1977-2-17 18464 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Whiskey Hill and Sand Hill Roads Comment
  CAS-BOT-BC186702  Brassicaceae Walter Knight; Irja Knight 1965-4-24 s.n. San Mateo On San Bruno Point Comment
  CAS-BOT-BC145495  Briza maxima John R. Barth 1963-5-23 42 San Mateo Pebble Beach. Comment
  CHSC56621  Briza maxima Steven Triano 1988-5-24 178 San Mateo Along w side of Old La Honda Road ca 0.6 mi s of Portola Road and 3.8 mi s of Woodside. 201 Comment
  JROH4867  Briza maxima John Hunter Thomas 1982-9-12 21156 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC145339  Briza minor Javier Penalosa 1963-3-30 2771 San Mateo San Bruno Mountain. Guadalupe Valley. 30 Comment
  JROH4882  Briza minor John H. Thomas 1968-4-19 14298 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC144492  Briza minor Copeland 1903-5-24 3257 San Mateo above Crystal Springs Lake Comment
  SEINET11675202  Briza minor Unknown 1932-1 9112 San Mateo above Spring Valley Lakes Comment
  JROH4580  Brodiaea elegans subsp. elegans Richard L. Garber 1971-5-29 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA140610  Brodiaea elegans subsp. elegans John H. Thomas 1960-6-8 8774 A San Mateo Between Stanford and Searsville along San Hill Road. Comment
  SJSU658  Brodiaea terrestris subsp. terrestris A. W. Jacobs 1941-4-20 San Mateo Jasper Ridge above Searsville Lake Comment
  CAS-BOT-BC483171  Brodiaea terrestris subsp. terrestris Lewis S. Rose 1970-4-8 70024 San Mateo Black Mountain west of San Mateo 121 Comment
  CAS-BOT-BC483180  Brodiaea terrestris subsp. terrestris W. R. Dudley 1906-5-8 s.n. San Mateo By road south of Crystal Springs Lake, Santa Cruz Peninsula Comment
  CAS-BOT-BC483187  Brodiaea terrestris subsp. terrestris Elizabeth McClintock; Philip C. Wheeler 1967-6-11 s.n. San Mateo Radio Road, San Bruno Mountain Comment
  JROH4589  Brodiaea terrestris subsp. terrestris John H. Thomas 1974-4-25 17201 San Mateo Jasper Ridge Biological Preserve, Stanford University. Serpentine grasslands on top of ridge. Comment
  CAS-BOT-BC149395  Bromus berteroanus Le Roy Abrams 1902-5-4 2409 San Mateo Woodside. Comment
  CDA20476  Bromus carinatus R. Garcia 2004-5-4 PDR 1299033 San Mateo San Francisco Bay Area; 2091 Portola Rd, Woodside. 0 Comment
  UCD58280  Bromus carinatus Elizabeth Wilson 1940-6-19 s.n. San Mateo Woodside Mountains. Comment
  CAS-BOT-BC148983  Bromus carinatus var. carinatus Le Roy Abrams 1902-5-11 2462 San Mateo Crystal Springs. Comment
  CAS-BOT-BC149022  Bromus carinatus var. carinatus Ned Cahill 1974-5-30 317 San Mateo Near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City. Comment
  JROH4895  Bromus carinatus var. carinatus John Hunter Thomas 1977-6-16 18740 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1037111  Bromus carinatus var. carinatus Leo Whitney 1935-3-20 2268 San Mateo Bayshore Highway 10 mi s of Cliff House; San Francisco, Bayshore Highway Comment
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Nov 12 2011
  CAS-BOT-BC183616  Bromus carinatus var. marginatus Peter Rubtzoff 1976-5-22 8548 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon area. Comment
  JROH4907  Bromus catharticus var. catharticus John Thomas 1989-5-9 24726 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Causeway Bridge between the two parts of the Lake Comment
  CAS-BOT-BC155840  Bromus catharticus var. elatus Dale Beltz 1956-5-23 s.n. San Mateo Belmont. 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
  JROH4920  Bromus hordeaceus John H. Thomas 1967-5-12 12889 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4929  Bromus hordeaceus John Rawlings 2010-4-28 1091 San Mateo Jasper Ridge Biological Preserve, Stanford University; on slope south of the visitor parking lot 119 Comment
  JEPS26837  Bromus madritensis subsp. madritensis Rimo Bacigalupi with L. Heckard 1961-5-14 7700 San Mateo near s end of Crystal Springs Lake along Canada Road, about San Francisco's Pulgas Water Temple Crystal Springs Lake; , Canada Road 95 Comment
  JROH4943  Bromus madritensis subsp. madritensis John Hunter Thomas 1980-5-1 19913 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5718  Bromus madritensis subsp. madritensis John Rawlings 2015-4-26 1649 San Mateo Jasper Ridge Biological Preserve, Stanford University; near cistern at west side of Field Station. 1120 Comment
  JROH4948  Bromus madritensis subsp. rubens John Hunter Thomas 1988-6-2 24503 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near old bridge Comment
  JROH4955  Bromus madritensis subsp. rubens John Rawlings 2013-4-9 1146 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along brick path leading from visitor parking to Sun Field Station. 120 Comment
  POM264990  Bromus marginatus I. L. Wiggins 1929-5-10 3672 San Mateo Pigeon Point Comment
  RSA135733  Bromus marginatus W. R. Dudley 1901-5-14 s.n. San Mateo between Colma and Lake Merced. Comment
  RSA320909  Bromus marginatus Robert A. Norris 1984-3-21 4656 San Mateo Blue Blossom Hill, San Bruno Mts. 366 Comment
  SEINET3921866  Bromus marginatus Robert A. Norris 1984-3-21 4656 San Mateo Blue Blossom Hills, San Mateo Mts., CA.; 0 366 Comment
  RSA523926  Bromus maritimus G. H. True 1937-4-3 621 San Mateo Near coast north of Salada Beach. 15 Comment
  SJSU15908  Bromus maritimus John Rawlings, Sara Timby, Toni Corelli 2016-4-23 1733 San Mateo Bean Hollow bluff trail, west of Hwy 1 south of Pescadero 8 Comment
  UCD59044  Bromus maritimus Roxana S. Ferris 1920-4-27 1981 San Mateo Santa Cruz Mountain Peninsula. Ano Nuevo. 0 Comment
  CAS-BOT-BC185397  Bromus vulgaris L. R. Abrams 1915-6-14 5562 San Mateo Kings Mountain Road. Comment
  UC1195194  Buddleja davidii John H. Thomas 1960-6-25 8794 San Mateo along or near a small creek running into Redwood Slough between El Camino Real and R.R. tracks Redwood City (near Maple St.) 7 Comment
  UC136066  Cakile edentula C. F. Baker 1902-10-1 1746 San Mateo Pillar Point; Pacific Coast, Pillar Point Comment
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Feb 2 2012
  RSA98363  Cakile maritima var. maritima I. L. Wiggins 1949-7-2 12196 San Mateo Pescadero Beach. Comment
  CAS-BOT-BC185139  Calamagrostis nutkaensis John H. Thomas 1961-8-27 9708 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC185149  Calamagrostis nutkaensis A. D. E. Elmer 1903-5-1 5033 San Mateo San Pedro. Comment
  JROH3324  Calandrinia ciliata John H. Thomas 1973-4-14 16550 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3326  Calandrinia ciliata John H. Thomas 1976-4-28 18097 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1640  Callitriche marginata John H. Thomas 1973-4-20 16578 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
  CAS-BOT-BC492166  Calochortus albus Fred Hemphill 1973-5-14 802 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH4603  Calochortus albus John H. Thomas 1976-4-28 18096 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4608  Calochortus albus John Hunter Thomas 1981-4-30 20520 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD139448  Calochortus albus Adeline Fredericks 1920-4-1 s.n. San Mateo Lake San Andreas. Comment
  UCD23297  Calochortus albus Alan T. Whittemore 1976-5-29 118 San Mateo San Francisco Fish and Game Refuge. East side of Lower Crystal Springs Lake, on Sawyer's Camp Road, between L. San Andreas and Crystal Springs Lake. 100 Comment
  CAS-BOT-BC492203  Calochortus albus W. R. Dudley 1894-4-21 s.n. San Mateo Side of hill near San Mateo ravine Comment
  CAS-BOT-BC492212  Calochortus albus Ned Cahill 1974-5-13 270 San Mateo Chaparral near the intersection of Canda and Edgewood rods, about 3 mi westward from Redwood City. Comment
  RSA292630  Calochortus albus Lyman Benson 1930-5-3 2110 San Mateo Woods, above Woodside, Santa Cruz Mtns. 366 Comment
  JROH4628  Calochortus argillosus John Hunter Thomas 1980-6-5 19994 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC491980  Calochortus luteus R. Hoffough 1929-5-25 214 San Mateo Sand Hill Road, Palo Alto Comment
  CAS-BOT-BC491987  Calochortus luteus F. H. Lamb 1895-6-14 s.n. San Mateo Along the San Francisquito Creek near St. Michaels' church Comment
  CAS-BOT-BC493992  Calochortus tolmiei Joy H. Ozer 1963-6-9 59 San Mateo Southern boundary of Portola State Park. 609 Comment
  JROH572  Calycadenia multiglandulosa John Hunter Thomas 1986-6-9 24094 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET7063126  Calycadenia multiglandulosa A. G. Vestal 1963-7-12 s.n. San Mateo Jasper Ridge. UTM Zone 10, 568418mE, 4140415mN. (WGS84/NAD83). 174 Comment
  UCR51651  Calystegia macrostegia subsp. cyclostegia 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
  SJSU8769  Calystegia purpurata D. D. Kohler 1963-5-18 116 San Mateo Moss Beach c. 5 mi N of Half Moon Bay Comment
  CAS-BOT-BC224648  Calystegia purpurata subsp. purpurata J. H. Thomas 1949-6-4 595 San Mateo 1 mile E. of Pescadero Comment
  CAS-BOT-BC224653  Calystegia purpurata subsp. purpurata Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon Comment
  CAS-BOT-BC224662  Calystegia purpurata subsp. purpurata Fred Hemphill 1973-5-6 764 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  JROH1839  Calystegia purpurata subsp. purpurata John H. Thomas 1968-4-19 14294 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC909351  Calystegia soldanella Ira L. Wiggins 1950-5-20 12351 San Mateo Pescadero Beach Pescadero Beach (upper margin beach) Comment
  CAS-BOT-BC224345  Calystegia subacaulis subsp. subacaulis A. D. E. Elmer 1903-6-1 4826 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC224348  Calystegia subacaulis subsp. subacaulis Alice Eastwood 1933-5-14 18851 San Mateo Woodside, woods near the Schillings estate Comment
  POM32530  Camissonia cheiranthifolia subsp. cheiranthifolia A. D. E. Elmer 1903-07 4942 San Mateo San Pedro. Comment
  RSA15251  Camissonia ovata Carl B. Wolf 1927-2-19 212 San Mateo 1 mile from where Skyline Blvd. crosses Belmont Road Comment
  SEINET5542144  Camissonia ovata H. S. Gentry 1931-1 33 San Mateo Collected 2 miles W of San Bruno. Comment
  CAS-BOT-BC160329  Camissoniopsis cheiranthifolia subsp. cheiranthifolia John H. Thomas 1963-5-20 10108 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  RSA18502  Campanula prenanthoides C. B. Wolf 1927-7-14 618 San Mateo Summit of Kings Mountain Rd. Comment
  SEINET10462891  Campanula prenanthoides LeRoy R. Abrams 1907-8-26 Abrams s.n. San Mateo KINGS MT, MOIST SHADED REDWOODS Comment
  SEINET10463019  Campanula prenanthoides Wolf 1927-7-20 WOLF 646 San Mateo LA HONDA GRADE Comment
  SEINET10463064  Campanula prenanthoides LeRoy R. Abrams 1907-8-26 Abrams s.n. San Mateo Kings Mountain Comment
  CAS-BOT-BC37161  Capsella bursa-pastoris David D. Keck 1932-2-16 1378 San Mateo Portola. Comment
  JROH1478  Capsella bursa-pastoris John Hunter Thomas 1987-4-4 24168 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Dam 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-BC37687  Cardamine californica Lewis S. Rose 1936-3-11 36021 San Mateo Kings Mountain. 304 Comment
  CAS-BOT-BC37690  Cardamine californica Oliver W. Norvell 1931-2-28 1356 San Mateo Kings Mountain Grade. Comment
  HSC6686  Cardamine californica P. A. Murphy 1965-4-16 37 San Mateo 6 mi. from Half Moon Bay in Hatches Woods Comment
  JROH3903  Cardamine californica D. D. Davis 1903-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM176891  Cardamine californica var. integrifolia W. R. Dudley 1893-2-18 s.n. San Mateo La Honda. Santa Cruz Peninsula. Comment
  CAS-BOT-BC37986  Cardamine oligosperma John H. Thomas 1963-5-20 10119 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles northwest of Santa Cruz. Comment
  SJSU15404  Cardionema ramosissimum Toni Corelli 2010-4-9 669 San Mateo Rockaway Headlands, southwest of Rockaway Beach, Pacifica, CA 36 Comment
  CAS-BOT-BC384841  Cardionema ramosissimum Philip C. Wheeler 1965-5-18 s.n. San Mateo San Bruno Mountain. Area adjacent to Olivet Cemetery Comment
  CAS-BOT-BC281835  Carduus tenuiflorus Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  POM290232  Carex Lyman Benson 1930-5-1 2065 San Mateo Stanford University. 91 Comment
  CAS-BOT-BC17851  Carex amplifolia John H. Thomas 1961-5-14 9365 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  RSA159424  Carex amplifolia John H. Thomas 1961-5-14 9365 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  CAS-BOT-BC17849  Carex amplifolia W. R. Dudley 1906-6-8 s.n. San Mateo The Santa Cruz Mountain Peninsula. In Squealer Gulch above water trough. Comment
  CAS-BOT-BC17855  Carex amplifolia Peter Rubtzoff 1953-5-14 1345 San Mateo Pilarcitos Creek Canyon 1 to 2 miles downtreams from Pilarcitos Lake. Comment
  SEINET7549670 Image available Carex amplifolia Lewis S. Rose 1933-6-23 33250 San Mateo Kings Mountain. Comment
  JROH4322  Carex bolanderi Toni Corelli 2005-8-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Causeway, Trail 13, west of Leonard's Bridge. 106 Comment
  RSA220059  Carex bolanderi Peter Rubtzoff 1953-5-14 1339 San Mateo Pilarcitos Creek Canyon, 1 to 2 miles downstream from Pilarcitos Lake. Comment
  JEPS109523  Carex brevicaulis Dean W. Taylor 1992-3-19 12338 b San Mateo Bean Hollow, on coastal bluff ca. 400 m n along the coast from the parking area on the beach side of Highway 1 alingment Comment
  CAS-BOT-BC34072  Carex brevicaulis John Thomas Howell 1965-3-29 41035 San Mateo West end of summit ridge of San Bruno Mountain. 396 Comment
  CAS-BOT-BC18921  Carex densa Alice Eastwood; John Thomas Howell 1937-5-7 4327 San Mateo Visatacion Valley. Comment
  CAS-BOT-BC18930  Carex densa LeRoy Abrams 1902-5-11 2444 San Mateo Crystal Springs. Comment
  CAS-BOT-BC18945  Carex densa LeRoy Abrams 1902-5-11 2444 San Mateo Crystal Springs. Comment
  CAS-BOT-BC18925  Carex densa Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo San Bruno Mountains. Crocker Hills. Comment
  CAS-BOT-BC28411  Carex gracilior W. R. Dudley 1900-3-17 s.n. San Mateo A field N of Seal Cove Comment
  SEINET7560149 Image available Carex gracilior Charles Piper Smith 1905-4-26 874 San Mateo Portola Searsville Lake. 98 Comment
  CAS-BOT-BC21811  Carex harfordii Lewis S. Rose 1935-5-29 35194 San Mateo Kings Mountain. Comment
  CAS-BOT-BC21815  Carex harfordii Alice Eastwood; John Thomas Howell 1938-6-26 6059 San Mateo Near Pescadero. Comment
  SEINET4291981 Image available Carex harfordii A. L. Hipp, Pollock, J 1999-1 ah 282 San Mateo Marsh at the mouth of Pescadero Creek, near Pescadero State Beach. North pond, along the edge of trail. Comment
  CAS-BOT-BC227873  Carex harfordii Elizabeth McClintock; Paul Reeberg 1989-5-23 s.n. San Mateo San Bruno Mountains. In Wax Myrtle Ravine 121 Comment
  RSA789960  Carex harfordii Peter Rubtzoff 1975-5-21 7968 San Mateo San Bruno Mtns: Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  SEINET10883864  Carex laciniata Adolph D. E. Elmer Elmer 2958 San Mateo Lake Merced. Comment
  CAS-BOT-BC119446  Carex nudata W. R. Dudley 1903-6-6 s.n. San Mateo Below Iversons near margin of Peter;s Creek at mouth. Comment
  CAS-BOT-BC117642  Carex serratodens LeRoy Abrams 1902-5-4 s.n. San Mateo Woodside. Comment
  POM79433  Carex serratodens C. F. Baker 1902-5-10 811 San Mateo Crystal Springs Lake. Comment
  SEINET10949228 Image available Carex serratodens Charles F. Baker 1902-5-10 Baker 811 San Mateo Crystal Springs Lake, Comment
  SEINET7575211 Image available Carex serratodens Lewis S. Rose 1936-5-28 36304 San Mateo Emerald L, W of Redwood City. 91 Comment
  CDA34492  Carex subbracteata D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .176 San Mateo Swanton Rd just S of Ano Nuevo above Weddell Creek. 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
  UC1159367  Carex subbracteata J. H. Thomas 1959-4-4 7657 San Mateo about 0.7 mi s Gazos Creek (about 6.5 mi s from Pescadero) 45 Comment
  SBBG47544  Carex subbracteata L. S. Rose 1939-4-14 39063 San Mateo South San Francisco 15 Comment
  SEINET10750022  Carex subbracteata Alice Eastwood, John Thomas Howell; J. W. Stacey 1938-4-24 Eastwood 5245 San Mateo Half Moon Bay. Comment
  CAS-BOT-BC116814  Carex subbracteata var. subbracteata John Thomas Howell 1938-5-1 13778 San Mateo Near South San Francisco. Comment
  CAS-BOT-BC116818  Carex subbracteata var. subbracteata John Thomas Howell 1938-5-1 13779 San Mateo Near South San Francisco Comment
  CAS-BOT-BC116821  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5257 San Mateo Pescadero 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
  SEINET3908568  Carex tumulicola Lewis S. Rose 1971-5-18 71031 San Mateo Tartan Trail Road. Hillsborough.; 0 91 Comment
  CAS-BOT-BC230111  Carpobrotus chilensis Daniel Cohen 1953-5-9 96 San Mateo Sea cliffs facing ocean at Pebble Beach Comment
  CHSC81449  Carpobrotus edulis Sabrina Wright; Brandi Pedigo, Jessica Wright, Nicky Wright 2000-3-4 San Mateo Sharp Park Rd at Hwy 1, Pacifica. 15 Comment
  CAS-BOT-BC249187  Castilleja affinis James McMurphy 1902-4-6 s.n. San Mateo Coal Mine Ridge Comment
  POM15460  Castilleja affinis C. F. Baker 1902-5-1 777 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
  RSA505385  Castilleja affinis R. C. Bacigalupi, G. Thomas Robbins 1955-8-4 5443 San Mateo Just opposite Thornton Beach, east of Highway No. 1 (Calif. State). 61 Comment
  RSA516625  Castilleja affinis R. C. Bacigalupi, J. R. Sweeney, G. Bacigalupi, Cliff Fenneman 1954-8-3 4733 San Mateo Heights above Thornton Beach close to State Highway No. 1. 55 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
  JEPS6925  Castilleja affinis subsp. affinis Rimo Bacigalupi with G. Thomas Robbins 1954-6-18 4552 San Mateo 0.25 mi below Portola State Park road junction with the Alpine Road (along road to Portola State Park) Comment
  JEPS88803  Castilleja affinis subsp. affinis T. I. and F. M. Chuang 1991-6-29 7852 San Mateo just s Pescadero State Beach (on Highway 1) Comment
  JROH3947  Castilleja affinis subsp. affinis John H. Thomas 1981-4-23 20467 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS6959  Castilleja ambigua subsp. ambigua Peter H. Raven 1950-4-30 1964 San Mateo Montara 15 Comment
  SJSU15806  Castilleja ambigua subsp. ambigua Toni Corelli 2015-5-3 1194 San Mateo Northern edge of Fitzgerald Marine Reserve, and private property adjacent in Moss Beach also know as Vallemar Bluff 14 Comment
  JROH3971  Castilleja attenuata Carol Zabel 1989-4-19 9 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3974  Castilleja densiflora subsp. densiflora John H. Thomas 1956-4-7 5621 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  JROH3976  Castilleja densiflora subsp. densiflora Duncan M. Porter 1961-4-8 749 San Mateo Jasper Ridge Biological Preserve, Stanford University; near gate on top of ridge Comment
  JROH3985  Castilleja densiflora subsp. densiflora John Hunter Thomas 1985-5-2 23581 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1012313  Castilleja exserta F. W. Pennell and L. R. Abrams 1940-5-16 25432 San Mateo 2 mi sw Skyline Boulevard (on Alpine Creek Road) 579 Comment
  JEPS18929  Castilleja exserta subsp. latifolia Rimo Bacigalupi with S. Galen Smith, G. T. Robbins and Lauramay Dempster 1956-5-15 5647 San Mateo about at the center of Montara Mountain Montara Mountain 487 Comment
  POM15341B  Castilleja exserta subsp. latifolia Copeland 1903-6-3 3298 San Mateo Montara Point. Comment
  SD38137  Castilleja franciscana Edith A. Purer 1933-5-25 3653 San Mateo Spring Valley Lakes Comment
  CAS-BOT-BC243828  Castilleja latifolia David D. Keck 1932-5-11 1768 San Mateo Two miles north of San Gregorio Comment
  SD38274  Castilleja latifolia Edith A. Purer 1933-7-27 5374 San Mateo Sand dunes, two miles south of Pigeon Point Comment
  SEINET7097932  Castilleja latifolia 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
  JROH3992  Castilleja rubicundula subsp. lithospermoides John H. Thomas 1955-5-6 4984 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge 182 Comment
  UC886506  Castilleja rubicundula subsp. lithospermoides Alice Eastwood 1912-6-10 321 San Mateo Crystal Springs Comment
  JEPS34452  Castilleja subinclusa subsp. franciscana L. R. Heckard 1963-7-18 1340 San Mateo just e Pigeon Point lighthouse (along old Coast Hwy 1) Comment
  JEPS47422  Castilleja subinclusa subsp. franciscana L. R. Heckard 1964-7-15 1420 San Mateo 0.4 mi above Tunitas Road junction with the Lobitos Creek cut-off road (along Tunitas Road, about 4.5 mi from State Hwy 1) Comment
  UC1039782  Castilleja subinclusa subsp. franciscana H. L. Mason 1927-4-23 3678 San Mateo La Honda to Pescadero Creek (via Blumquist Mill) Comment
  CAS-BOT-BC32580  Castilleja wightii Adolph Daniel Edward Elmer 1903-7-1 4761 San Mateo San Pedro Comment
  CDA930  Castilleja wightii D. G. Kelch, B. G. Baldwin, Sue Bainbridge, Abigail Moore 2005-6-21 5 .371 San Mateo S.F. Water District land, near Spring Valley. NE corner Pilarcitos Lake. Comment
  JEPS47396  Castilleja wightii L. R. Heckard 1964-6-24 1394 San Mateo near San Bruno Mt. summit (slope n of (below) transmitting station); San Bruno Mt. 304 Comment
  JEPS8516  Castilleja wightii Elsie M. Zeile 1925-3-22 San Mateo Colma Canyon Comment
  RSA18450  Castilleja wightii Carl B. Wolf 1927-6-29 557 San Mateo South of Pebble Beach near Pescadero. Comment
  RSA294161  Castilleja wightii Robert A. Norris, John L. Inase, Allen Nakagawa 1981-7-25 4229 San Mateo Alongside footpath on brushy slope about 50 ft. above a marshy lagoon border, N of mouth of Pescadero Creek, Pescadero State Beach. Comment
  UCD123037  Castilleja wightii Lewis S. Rose 1965-4-22 65026 San Mateo San Bruno Mountain, south of parking lot. 365 Comment
  CAS-BOT-BC39379  Caulanthus lasiophyllus L. R. Abrams 1917-4-12 6434 San Mateo Near Crystal Springs Lake. Comment
  CAS-BOT-BC40391  Caulanthus lasiophyllus W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake. Comment
  CAS-BOT-BC40395  Caulanthus lasiophyllus Walter Knight; Irja Knight 1965-4-25 1090 San Mateo San Bruno Mountain. In Devil's Arroyo. Comment
  UCD114587  Caulanthus lasiophyllus Ronald E. Dengler 1960-4-3 3 San Mateo Jasper Ridge, Stanford Biological Reserve. 190 Comment
  CAS-BOT-BC48392  Ceanothus cuneatus var. cuneatus Roxana S. Ferris 1936-7-2 9308 San Mateo Skyline Blvd. south of junction of Alpine Creek Road Comment
  JROH3525  Ceanothus cuneatus var. cuneatus John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC51601  Ceanothus oliganthus var. sorediatus W. R. Dudley 1894-4-27 s.n. San Mateo Summit Springs, Kings Mt. Comment
  JROH3531  Ceanothus oliganthus var. sorediatus John H. Thomas 1975-5-12 17847 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1206472  Ceanothus oliganthus var. sorediatus Le Roy Abrams 1902-4-5 2307 San Mateo Searsville Comment
  UC311387  Ceanothus oliganthus var. sorediatus A. D. E. Elmer May 1903 4479 San Mateo Portola Comment
  POM299416  Ceanothus oliganthus var. sorediatus L. S. Rose 1942-4-19 42012 San Mateo Santa clara County: Saratoga Road, 2 miles E of the Skyline Blvd edge of woods with Lithocarpus densiflorus, Arbutus Menziesii and Sequoia sempervirens Comment
  POM177505  Ceanothus papillosus J. C. Murphy 1906-5-20 13 San Mateo Santa Cruz Mts. Comment
  RSA77705  Ceanothus papillosus D. D. Keck 1932-5-11 1774 San Mateo E side of Kings Mtn, on Kings Mtn road. 503 Comment
  UC1071222  Ceanothus papillosus C. J. Kraebel 1934-4-15 7 San Mateo head of Pescadero Creek Santa Cruz Quad., head of Pescadero Creek Comment
  CAS-BOT-BC52299  Ceanothus thyrsiflorus W. R. Dudley 1894-3-25 s.n. San Mateo By road from San Gregorio to Pescadero Comment
  CAS-BOT-BC52302  Ceanothus thyrsiflorus Barrett Anderson; Peter Rubtzoff 1988-4-22 2667 San Mateo San Bruno Mountain. Radio Road south of Guadalupe Canyon Parkway 365 Comment
  RSA153472  Ceanothus thyrsiflorus John H. Thomas 1961-5-7 9295 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  UC1537016  Ceanothus thyrsiflorus Gordon H. True Jr. 1937-3-31 615 San Mateo on Salada Beach Road 60 Comment
  UCSB3905  Ceanothus thyrsiflorus var. griseus Walker, Clifford 1954-4-20 San Mateo Woodside Rd. 1 mi. E. Woodside 2 Comment
  RSA289669  Centaurea calcitrapa Lyman Benson 1930-4-15 2037 San Mateo Spring Valley; Crystal Springs Lake 152 Comment
  SEINET11860703  Centaurea calcitrapa Unknown 1933-8-13 10506 San Mateo Belmont Comment
  UCD130007  Centaurea calcitrapa P. B. Kennedy 1916-5-7 s.n. San Mateo vacants lots around Burlingame. Comment
  JROH601  Centaurea melitensis John H. Thomas 1973-6-15 16849 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC306679  Centaurea melitensis A. D. E. Elmer 1903-6-1 4281 San Mateo Crystal Springs Lake Comment
  SEINET8730776 Image available Centaurium exaltatum Lewis S. Rose 1941-1 41280 San Mateo Kings Mountain Rd, 3 miles west of Woodside 183 Comment
  CHSC56085  Centaurium tenuiflorum Jan M. Karaz 1979-5-27 60 San Mateo 3 mi east of Hwy 280 intersection with Woodside Road, 1.2 mi east of Woodside on Mountain Home Road. 7 Comment
  CAS-BOT-BC272816  Centromadia parryi subsp. parryi David D. Keck 1931-10-5 1291 San Mateo Salada Beach Comment
  SEINET3146197  Centromadia pungens L. S. Rose 1938-8-18 38231 San Mateo San Mateo 6 Comment
  UCD130207  Centromadia pungens Lewis S. Rose 1965-9-20 65106 San Mateo Burlingame, Trousdale Dr. and California Dr. 9 Comment
  CAS-BOT-BC384958  Cerastium arvense W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Ravine north of Seal Cove Comment
  RSA788848  Cerastium fontanum subsp. vulgare Peter Rubtzoff 1977-11-24 9141 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC388385  Cerastium glomeratum John H. Thomas 1964-4-30 10355 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH1692  Cerastium glomeratum John H. Thomas 1969-4-20 14897 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA15269  Cercocarpus betuloides Carl B. Wolf 1928-3-2 233 San Mateo On hillside above Searsville Lake, Comment
  SEINET11914804  Cercocarpus betuloides Unknown 1932-1 8945 San Mateo Los Francos Woods Comment
  JROH3620  Cercocarpus betuloides var. betuloides John H. Thomas 1961-6-14 9541 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA195571  Chenopodium californicum John H. Thomas 1966-4-29 11585 San Mateo Jasper Ridge Biological Experimental Area, 5 miles SW of Palo Alto. Comment
  POM164765  Chenopodium murale C. F. Baker 1902-9-2 1549 San Mateo Crystal Springs Lake. Comment
  RSA181237  Chenopodium murale John H. Thomas 1963-5-20 10106 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC497726  Chlorogalum pomeridianum Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  IRVC9051  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-BC499311  Chlorogalum pomeridianum var. divaricatum J. H. Thomas 1958-6-11 s.n. San Mateo About 4.3 miles due east of Belmont near Crystal Springs Reservoir 91 Comment
  HSC15442  Chlorogalum pomeridianum var. divaricatum J. Wendell Howe 1930-5-27 152 San Mateo Pebble Beach, near ocean Comment
  JROH4647  Chlorogalum pomeridianum var. pomeridianum John H. Thomas 1974-6-27 17454 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the low flow crossing below Searsville Dam Comment
  CDA20080  Chondrilla juncea J. Beall 2002-11-18 PDR P 205608 San Mateo San Francisco Bay Area; across the street from 3975 Pacific Blvd. 0 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-BC32865  Chorizanthe cuspidata var. marginata Adolph Daniel Edward Elmer 1903-5-1 4828 San Mateo San Pedro Comment
  NY285630  Chorizanthe cuspidata var. marginata A. D. E. Elmer 05 1903 4828 San Mateo San Pedro Comment
  SEINET3828530 Image available Chorizanthe cuspidata var. marginata A. D. E. Elmer 1903-1 4828 San Mateo San Pedro. Comment
  RSA54048  Chrysanthemum leucanthemum J. T. Howell 1949-7-4 25356 San Mateo Skyline Blvd., north of Millbrae Comment
  RSA126149  Chrysanthemum segetum Peter H. Raven 1950-4-30 1971 San Mateo along streets, Montara 24 Comment
  CAS-BOT-BC36454  Chrysolepis chrysophylla William R. Dudley 1893-5-27 s.n. San Mateo Woodside Road Comment
  CAS-BOT-BC36402  Chrysolepis chrysophylla var. minor David D. Keck 1934-7-7 2926 San Mateo Kings Mountain, just east of summit 548 Comment
  RSA176821  Cicendia quadrangularis John H. Thomas 1961-4-29 9182 San Mateo Jasper Ridge Biological Experimental Area, about five miles southwest of Palo Alto. Comment
  CAS-BOT-BC277883  Cirsium brevistylum Lewis S. Rose 1933-6-9 33216 San Mateo 3 mi. W. of San Bruno Comment
  RSA3890  Cirsium brevistylum I. L. Wiggins 1929-7-4 3787 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  UCR70775  Cirsium brevistylum Mrs. E. C. Sutliffe 1933-7-26 s.n. San Mateo Lobitos Canyon 451 Comment
  CAS-BOT-BC100940  Cirsium fontinale var. fontinale Lewis S. Rose 1959-6-18 59027 San Mateo Crystal Springs Lake near County Relief Home. Type Locality 121 Comment
  SJSU2899  Cirsium fontinale var. fontinale G. E. Pilz 1965-7-12 114 San Mateo E side Crystal Springs Reservoir in outer S Coast Ranges 121 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
  UC175461  Cirsium fontinale var. fontinale W. N. Suksdorf 1913-6-22 113 San Mateo Crystal Springs Lake Comment
  UC922267  Cirsium fontinale var. fontinale H. K. Sharsmith 1937-6-3 3952 San Mateo about 3 mi w of San Mateo; Crystal Springs Lake 152 Comment
  UCD130570  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
  CAS-BOT-BC280131  Cirsium occidentale var. venustum Margaret A. Barry 1937-7-17 201 San Mateo Coal Mine Ridge Comment
  UC30815  Cirsium occidentale var. venustum J. Burtt Davy 1893-6-17 815 San Mateo Belmont Comment
  CAS-BOT-BC280508  Cirsium quercetorum John H. Thomas 1955-4-6 4850 San Mateo East facing slope of San Bruno Mountain just north of South San Francisco 91 Comment
  RSA0070861  Cirsium quercetorum John H. Thomas 1958-6-11 7227 San Mateo About 4.3 miles due E of Belmont near Crystal Springs Reservoir. 91 Comment
  UC178910  Cirsium quercetorum Katharine Brandegee 1905-1 San Mateo Moss Beach Comment
  UC895026  Cirsium quercetorum S. F. Blake 1927-7-8 10006 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC280504  Cirsium quercetorum L. R. Abrams 1918-4-30 7065 San Mateo Bayshore Road, San Bruno Hills Comment
  CAS-BOT-BC280527  Cirsium quercetorum Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Top of Quarry 4 Comment
  CDA7143  Cirsium vulgare D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  CAS-BOT-BC285869  Cirsium vulgare George Oberlander 1949-8-20 335 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  JROH1830  Cistus incanus D. E. Breedlove 1971-5-31 19350 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  SEINET4900270  Clarkia cylindrica Paul D. Sorensen 1973-8-3 7337 San Mateo 1 mile W of junction with Page Mill Rd. and California 35 Comment
  RSA41290  Clarkia epilobioides Robert F. Hoover 1941-4-23 4904 San Mateo Redwood City hills Comment
  CAS-BOT-BC163964  Clarkia purpurea subsp. quadrivulnera W. R. Dudley 1894-5-1 s.n. San Mateo Road from Woodside to Crystal Spr. Reservoir Comment
  CAS-BOT-BC163968  Clarkia purpurea subsp. quadrivulnera W. R. Dudley 1903-5-31 s.n. San Mateo Alpine Road, Black Mt., Santa Cruz Range Comment
  CAS-BOT-BC165142  Clarkia rubicunda Alice Eastwood; John Thomas Howell 1938-6-26 6067 San Mateo Open ground avove La Honda Comment
  CAS-BOT-BC165164  Clarkia rubicunda Peter H. Raven 1957-6-30 11014 San Mateo 1.8 miles east of Pescadero on road along Pescadero Creek Comment
  CAS-BOT-BC165165  Clarkia rubicunda Peter H. Raven 1957-6-24 10972 San Mateo North of the light house, Pigeon Point Comment
  JEPS127875  Clarkia rubicunda Adam C. Schneider with C. Matt Guilliams 2013-5-17 186 San Mateo Crystal Springs Reservoir. Under large transmission tower. Comment
  JROH3017  Clarkia rubicunda Raymond R. White 1974-6-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; area H Comment
  RSA18380  Clarkia rubicunda Carl B. Wolf 1927-7-1 528 San Mateo Above Emerald Lake, back of Redwood City. Comment
  SBBG5002  Clarkia rubicunda H. and M. Dearing 1951-8-17 6945 San Mateo Pigeon Point, N of Santa Cruz Comment
  UC1071885  Clarkia rubicunda H. and M. Lewis 1951-6-28 861 San Mateo neaer Half Moon Bay (1.3 mi n of bridge (35.32C - 3.72) on Highway 1) 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-BC165127  Clarkia rubicunda L. R. Abrams 1907-8-25 s.n. San Mateo Between Pescadero and Half Moon Bay Comment
  CAS-BOT-BC165132  Clarkia rubicunda L. R. Abrams 1907-8-25 s.n. San Mateo Between [Pecadero] Pescadero and Half Moon Bay Comment
  RSA113615  Clarkia rubicunda Peter H. Raven 1957-7-6 11055 San Mateo Along Tunitas Creek 2.0 miles from junction with State Highway 1. Comment
  UC1279895  Clarkia rubicunda Peter H. Raven 1957-6-20 10954 San Mateo 2.6 mi n Redwood City turnoff (State Highway 5 (Skyline Boulevard)) Comment
  CAS-BOT-BC165601  Clarkia unguiculata Daniel Cohen 1953-6-5 108 San Mateo Los Trancos Woods Comment
  JROH3038  Clarkia unguiculata Toni Corelli 2003-5-28 260 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 21, below Searsville Lab 109 Comment
  CAS-BOT-BC439590  Claytonia parviflora subsp. parviflora Margaret A. Barry 1937-5-15 98 San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC439993  Claytonia perfoliata subsp. mexicana George Oberlander 1949-3-2 18 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  RSA276897  Claytonia perfoliata subsp. mexicana J. M. Miller 1977-3-23 590 San Mateo Purisimo Canyon, 1.4 miles E of Hwy 1 on Purisimo Canyon Road. Comment
  JROH3342  Claytonia perfoliata subsp. perfoliata Daniel Cohen 1953-4-11 20 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1300962  Claytonia perfoliata subsp. perfoliata Helen K. Sharsmith 1963-2-16 5138 San Mateo above Daly City (slopes of San Bruno Mountain); San Francisco Bay Region, San Bruno Mountain 106 Comment
  CAS-BOT-BC91483  Clematis lasiantha J. I. McMurphy 1906-4-30 20 San Mateo Santa Cruz Peninsula. Santa Cruz Mountains. Portola Valley. Comment
  CAS-BOT-BC91484  Clematis lasiantha L. R. Abrams 1914-4-2 5076 San Mateo Woodside. Comment
  JROH3402  Clematis lasiantha Daniel Cohen 1953-4-11 19 San Mateo Jasper Ridge Biological Preserve, Stanford University. About 1/3 of the way up Jasper Ridge road Comment
  SEINET12099148  Clematis lasiantha Unknown 1906-1 19 San Mateo Fl Woodside, Santa Cruz Mts Comment
  POM290456  Clintonia andrewsiana Lyman Benson 1930-6-14 2151 San Mateo La Honda, Santa Cruz Mtn. range. 213 Comment
  UC306644  Clintonia andrewsiana A. D. E. Elmer May, 1903 4331 San Mateo Butano Creek Comment
  CAS-BOT-BC240935  Collinsia multicolor Reed C. Rollins 1942-4-30 3019 San Mateo San Bruno Hills, 1 mile south of Daly City Comment
  JEPS17741  Collinsia multicolor A. Paul Martin 1957-5-23 San Mateo San Bruno Hills, at upper edge of town of Brisbane Brisbane; San Bruno Hills, Brisbane 198 Comment
  SD120833  Collinsia multicolor A. Paul Martin 1957-5-23 San Mateo Northern San mateo County; upper edge of town of Brisbane, southeastern slopes of San Bruno Hills 198 Comment
  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
  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
  RSA681681  Comarostaphylis diversifolia subsp. diversifolia Annuschka Deb 1989-8-18 379 San Mateo Woodside. 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
  RSA492534  Conium maculatum Lyman Benson 1937-7-25 8468 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  SBBG54550  Conium maculatum C. Taylor 1971-6-12 158 San Mateo corner of Harbor Blvd and Old Country Rd, Belmont Comment
  CAS-BOT-BC285991  Conyza bonariensis Peter H. Raven 1950-6-3 2222 San Mateo Along Millbrae Ave., Millbrae 60 Comment
  CAS-BOT-BC286211  Conyza canadensis George Oberlander 1949-8-20 360 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  POM226854  Cordylanthus maritimus subsp. palustris L. R. Abrams 1914-7-16 s.n. San Mateo Cooley's Landing on San Francisco Bay Comment
  SEINET8733335 Image available Cordylanthus pilosus L. S. Rose 1941-1 41362 San Mateo Woodside 60 Comment
  JEPS80893  Cordylanthus pilosus subsp. pilosus Monty Knudsen 1981-8-13 San Mateo w Redwood City; Edgewood Park Comment
  POM57992  Corethrogyne filaginifolia var. californica C. F. Baker 1902-5-10 810 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC209817  Cornus glabrata C. B. Wolf 1931-8-20 2329 San Mateo 3 miles west of Mayfield on road to La Honda 91 Comment
  CAS-BOT-BC210354  Cornus sericea Lewis S. Rose 1956-5-7 56064 A San Mateo 3 mi. e. of Half Moon Bay 30 Comment
  CAS-BOT-BC210355  Cornus sericea J. H. Thomas 1954-4-3 3817 San Mateo Along San Gregorio Creek about 1.5 miles west of La Honda 106 Comment
  JROH1867  Cornus sericea subsp. sericea John Hunter Thomas 1981-4-21 20460 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5906  Cornus sericea subsp. sericea M. Ray 1982-4-25 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; swamp trail about 1 km from Mapache Gate Comment
  UCR121552  Coronopus didymus George K. Helmkamp, E. A. Helmkamp 1999-6-28 4992 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  CDA1904  Cortaderia jubata G. D. Barbe 1977-11-17 2353 San Mateo At intersection of Skyline Blvd. (Hwy 35) and Hwy 92 at Skylawn Memorial Park, between San Mateo and Half Moon Bay. 0 Comment
  CAS-BOT-BC180279  Corylus cornuta subsp. californica Elizabeth McClintock 1972-3-26 s.n. San Mateo Middle Buckeye Canyon. San Bruno Mountain 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
  CAS-BOT-BC180374  Corylus cornuta subsp. californica Walter Knight 1964-9-14 849 San Mateo On sandstone ridge between Peak Mt. and Highway 1 Comment
  RSA481440  Corylus cornuta var. californica Paul C. Silva 1948-1-31 2621 San Mateo Skyline Blvd. just north of junction of Alpine Creek Road. 701 Comment
  UCR64445  Corylus cornuta var. californica David D. Keck 1932-2-12 1362 San Mateo La Honda road, east slope of Coast Range above Searsville Lake 305 Comment
  RSA15260  Corylus cornuta var. californica C. B. Wolf 1927-2-26 223 San Mateo Near the road on the La Honda Grade. Comment
  JROH660  Cotula coronopifolia John Hunter Thomas 1981-4-5 20270 San Mateo Jasper Ridge Biological Preserve, Stanford University; on dam Comment
  RSA18353  Cotula coronopifolia C. B. Wolf 1927-1-29 464 San Mateo Pebble Beach, coast south of Pescadero. Comment
  CAS-BOT-BC291449  Cotula coronopifolia W. R. Dudley 1897-5-1 s.n. San Mateo South San Francisco Comment
  HSC5423  Cotula coronopifolia R. E. Jones 1966-4-4 24 San Mateo Ano Nuevo Beach Comment
  UC1101408  Crassula aquatica Malcolm A. Nobs and S. Galen Smith 1949-8-16 1580 San Mateo ca. 1 mi. s. Half Moon Bay Comment
  RSA100981  Crassula aquatica G. Oberlander 1949-8-20 374 San Mateo San Andreas Lake, San Francisco Watershed Reserve. 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
  JROH3655  Crataegus monogyna John Hunter Thomas 1984-4-24 23299 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC290924  Crepis vesicaria John Thomas Howell 1956-5-1 31316 San Mateo Just s. of Woodside on road to Searsville Comment
  CAS-BOT-BC290925  Crepis vesicaria John Thomas Howell 1975-4-18 s.n. San Mateo From the home of Mrs. Hewlett Lee, Berenda Farm, Portola Valley Comment
  CDA21572  Crepis vesicaria subsp. taraxacifolia D. G. Kelch 2000-4-8 0 .139 San Mateo S of Woodside along I-680. Comment
  UC1219869  Crocosmia X crocosmiiflora John H. Thomas 1961-8-27 9700 San Mateo w end San Bruno Mountain (n San Mateo County) 243 Comment
  HSC24006  Croton setiger Mary Katherine Wicksten 1971-7-20 181 San Mateo Huddart Park, by Redwood Shelter. Comment
  JROH1955  Croton setiger John H. Thomas 1959-8-22 8076 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5739  Cryptantha clevelandii var. florosa John Rawlings 2015-5-28 1659 San Mateo Jasper Ridge Biological Preserve, Stanford University. Bird marker along Trail 9 at edge of chaparral. 140 Comment
  RSA10273  Cryptantha clevelandii var. florosa H. A. Barker 1927-5-14 671 San Mateo North of Half Moon Bay. Comment
  JROH1377  Cryptantha microstachys John Hunter Thomas 1978-4-22 19102 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5622  Cryptantha microstachys John Rawlings 2014-5-6 1223 A San Mateo Jasper Ridge Biological Preserve, Stanford University; on the top of Trevor's Knoll, about 70 m north of Trail 10. 181 Comment
  UC903434  Cupressus abramsiana unknown San Mateo on the n bank of the North Fork of Butano Creek North Fork of Butano Creek ((common corner of Section 11 and 12, and 13 and 14, range 4W) Comment
Read comments
Nov 11 2011
  RSA735619  Cupressus abramsiana subsp. butanoensis John Silba 2004-12-28 B- 421 San Mateo Pescadero County Park, on Butano Ridge, ca. 5 miles east of Dearborn Park Road. 427 Comment
  CAS-BOT-BC80789  Cupressus macrocarpa George Oberlander 1950-2-1 422 San Mateo Cahill Ridge - Plants of the San Francisco Watershed Reserve Comment
  JROH1860  Cuscuta occidentalis John Rawlings 2011-10-18 1095 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Boat launch below Searsville Lab. 104 Comment
  CAS-BOT-BC287331  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-BC287341  Cynara cardunculus John Thomas Howell 1956-11-14 31961 San Mateo Bayshore Highway just S of Main St, Redwood City Comment
  JROH1393  Cynoglossum grande John Hunter Thomas 1981-4-5 20277 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek Comment
  RSA130416  Cynoglossum grande Josephine Randall 1908-2-16 s.n. San Mateo Corte de Madera Canyon near Alpine Road. Comment
  JROH4377  Cyperus eragrostis John Hunter Thomas 1977-6-16 18806 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta in Searsville Lake. Comment
  UC457144  Cyperus eragrostis David D. Keck 1263 San Mateo desiccated swamp near Searsville Lake 75 Comment
  CAS-BOT-BC114457  Cyperus eragrostis W. R. Dudley 1908-6-19 s.n. San Mateo Road from Tanforan to Jersey Dairy. Comment
  SEINET10535609  Cystopteris Mary Susan Taylor 1978-8-30 Taylor 1860 A San Mateo Comment
  JROH23  Cystopteris fragilis John Hunter Thomas 1992-4-23 25153 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Rattlesnake Rocks and along trail to redwoods Comment
  CAS-BOT-BC198194  Cytisus scoparius Phillip C. Wheeler 1965-4-27 s.n. San Mateo Sierra Point, Brisbane, San Bruno Mountain Comment
  JROH5025  Dactylis glomerata John Hunter Thomas 1987-4-30 24215 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5031  Dactylis glomerata W. Lennihan 1989-5-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Across dam, down trail to meadow, turn left -- all along road before bridge over creek. Comment
  CAS-BOT-BC192239  Danthonia californica W. R. Dudley 1899-5-14 s.n. San Mateo Top of Sneath Ranch hill, West of South Bruno Comment
  JROH5034  Danthonia californica Herbert Dengler unspecified s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. In grassland about 200' N.E of serp. Comment
  JROH5036  Danthonia californica John H. Thomas 1967-6-1 12947 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD60479  Danthonia californica R. Tofsrud 1947-6-14 s.n. San Mateo 1-2 mi. N of Pescadero on road to San Gregorio. Comment
  JROH1907  Datisca glomerata John Hunter Thomas 1991-11-21 25104 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing of San Francisquito Creek Comment
  UC872608  Datisca glomerata Roxana Stinchfield 1915-10-14 257 San Mateo San Francisquito Creek; Santa Cruz Mountain Peninsula, San Francisquito Creek Comment
  UCD127385  Daucus carota Rimo Bacigalupi; G. Thomas Robbins 1955-8-4 5444 San Mateo along grade on Highway No. 1, just south of Pedro Valley. Comment
  JROH229  Daucus pusillus John Hunter Thomas 1978-4-22 19101 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH232  Daucus pusillus John Hunter Thomas 1991-5-2 25020 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC89137  Deinandra corymbosa K. Brandegee 1889-5-1 San Mateo Milbrae Comment
  OBI16296  Deinandra corymbosa Robert F. Hoover 1966-8-27 9942 San Mateo Halfmoon Bay 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-BC299218  Deinandra corymbosa subsp. corymbosa Elsie Zeile 1909-5-20 s.n. San Mateo Burlingame Comment
  CAS-BOT-BC299221  Deinandra corymbosa subsp. corymbosa Alice Eastwood 1921-7-17 s.n. San Mateo Granada Comment
  CAS-BOT-BC299214  Deinandra corymbosa subsp. corymbosa Walter Knight; Irja Knight 1963-10-7 s.n. San Mateo Quarry at end of School St. near Hillside Blvd., South San Francisco, San Bruno Mountain Comment
  JROH681  Delairea odorata Cary Tronson 2007-11-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near horse trail along Corte Madera Creek, near the collection site of many-flowered tobacco Comment
  CAS-BOT-BC9218  Delphinium californicum M. K. Curran 1884-1-1 s.n. San Mateo at Colma near San Francisco Comment
  CAS-BOT-BC9236  Delphinium decorum W. R. Dudley 1896-4-17 s.n. San Mateo Pasture near Pebble Beach, Pescodero Comment
  CAS-BOT-BC9244  Delphinium decorum Walter Knight; Irja Knight 1965-4-4 1004 San Mateo Bitter Cherry Ravine near bottom of Colma Canyon Comment
  UC1046498  Delphinium decorum subsp. tracyi R. Bacigalupi, L. Constance, Ritchie and Sarah Bell 1951-3-25 3205 San Mateo near San Francisco; Colma Canyon 137 Comment
Read comments
Sep 27 2007
  CAS-BOT-BC10286  Delphinium hesperium Harry A. Dutton 1900-4-29 s.n. San Mateo Unspecified Comment
  UCSB11751  Delphinium hesperium Olson, Jim 1962-4-17 San Mateo 10 miles southeast of Halfmoon Bay; on Canada Road 45 Comment
  JROH3446  Delphinium hesperium subsp. hesperium John Hunter Thomas 1977-6-16 18775 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC9870  Delphinium nudicaule Josephine D. Randall 1907-6-29 312 San Mateo Kings Mountain road. Comment
  SBBG28536  Delphinium nudicaule W. R. Dudley 1893-5-27 San Mateo beyond King's Mtn Comment
  JROH5730  Delphinium patens subsp. patens John Rawlings 2013-4-11 1199 San Mateo Jasper Ridge Biological Preserve, Stanford University. Northwest side of small drainage upstream from the upper bridge on Trail 11. 134 Comment
  CAS-BOT-BC116527  Delphinium patens subsp. patens W. Dudley 1900-3-16 s.n. San Mateo By Redwood Stage road to Woodside Comment
  SJSU1084  Delphinium variegatum C. W. Sharsmith 1951-4-6 5825 San Mateo Woodside hills 3 mi W of Woodside 182 Comment
  CAS-BOT-BC116532  Delphinium variegatum P. F. Covel 1936-4-24 269 San Mateo Foot of Saratoga Grade Comment
  CAS-BOT-BC7892  Delphinium variegatum H. Paul Arnaud 1941-5-3 s.n. San Mateo Jefferson Avenue, Redwood City Comment
  UC518022  Delphinium variegatum Lewis S. Rose 1933-4-30 33125 San Mateo open hills 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
  POM202455  Delphinium variegatum subsp. variegatum L. S. Rose 1933-4-30 33125 San Mateo Redwood City Comment
  CAS-BOT-BC630  Dendromecon rigida subsp. rigida George Thomas Oberlander 1950-3-11 414 San Mateo Southern boundary on Cahill Ridge. Comment
  CAS-BOT-BC628  Dendromecon rigida subsp. rigida Daniel Cohen 1953-5-9 83 San Mateo Near Skylind Drive on La Honda Road. Comment
  CAS-BOT-BC192634  Deschampsia danthonioides H. A. Dutton 1900-4-25 s.n. San Mateo Woodside Comment
  RSA591518  Deschampsia danthonioides D. D. Keck 1932-4-29 1448 San Mateo Redwood City. Fields near the San Francisco Bay salt marshes Comment
  JROH5059  Deschampsia elongata John H. Thomas 1969-6-4 15115 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5061  Deschampsia elongata John Hunter Thomas 1977-6-16 18773 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5066  Deschampsia elongata John Hunter Thomas 1982-7-3 21061 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC38027  Deschampsia elongata Michener and Bioletti June, 1893 131 San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC876  Dicentra chrysantha George T. Ruddock Sept 1917 s.n. San Mateo San Carlos Peak Comment
  CAS-BOT-BC903  Dicentra chrysantha Rimo Bacigalupi 1926-4-30 1355 San Mateo Near summit of Mt. Diablo Comment
  CAS-BOT-BC905  Dicentra chrysantha Mrs. Ernest Meiere 1916-6-1 s.n. San Mateo Mt. Diablo Comment
  CAS-BOT-BC709  Dicentra formosa Charles Piper Smith 1922-4-29 3502 San Mateo Montara Mountain Comment
  UCR2938  Dicentra formosa Wm. Horn Jr. 1963-4-13 630413- 01 San Mateo Hillsborough, 2240 Redington Road 30 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-BC704  Dicentra formosa subsp. formosa Peter Rubtzoff 1953-5-14 1340 San Mateo Pilarcitos Creek canyon, 1 to 2 miles downstream from Pilarcitos Lake. Comment
  CAS-BOT-BC502169  Dichelostemma congestum Fred Hemphill 1973-4-22 666 San Mateo San Carlos. Chaparral area north of Malabar Road and Melendy Drive. 207 Comment
  OBI22313  Digitaria sanguinalis Lewis S. Rose 1965-9-20 65108 San Mateo Burlingame, Trousdale Dr & Californica Dr 9 Comment
  CAS-BOT-BC150460  Diplacus aurantiacus J. H. Thomas 1954-4-3 3811 San Mateo Sand Hill Road, about 1 mile W. of Junipero Serra Blvd. 91 Comment
  CAS-BOT-BC150467  Diplacus aurantiacus W. R. Dudley 1900-4-20 s.n. San Mateo Hills near San Francisquito Cr. Comment
  JEPS127891  Dipsacus sativus Adam C. Schneider with C. Matt Guilliams and Will Freyman 2014-6-24 301 San Mateo Crystal Springs Reservoir Comment
  JROH1909  Dipsacus sativus John H. Thomas 1969-6-4 15108 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4203  Dirca occidentalis John H. Thomas 1968-2-11 14144 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4208  Dirca occidentalis John H. Thomas 1975-4-3 17701 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  POM196567  Disporum smithii W. R. Dudley 1896-4-17 s.n. San Mateo By road beyond La Honda Summit. Comment
  CAS-BOT-BC195716  Distichlis spicata W. R. Dudley 1897-10-10 s.n. San Mateo Toward Pilar Pt, north of Half Moon Bay Comment
  CAS-BOT-BC195722  Distichlis spicata John H. Thomas 1963-5-20 10150 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NE of Santa Cruz Comment
  UC1100272  Distichlis spicata Malcolm A. Nobs, S. Galen Smith 1949-8-26 1602 San Mateo Marshes at mouth of Pescadero Creek Comment
  SACT000992  Distichlis spicata var. stolonifera Malcolm Nobs, S. Smith 1949-8-26 San Mateo Collected in the marshes at mouth of creek. Comment
  HSC17872  Dodecatheon hendersonii Donald A. Johansen 1940-3-9 810 San Mateo Skyline Blvd. W of Burlingame Comment
  JROH1511  Draba verna John Hunter Thomas 1984-4-10 23285 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1514  Draba verna John Hunter Thomas 1988-4-6 24369 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC159547  Drymocallis glandulosa var. glandulosa John H. Thomas 1961-5-7 s.n. San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC159537  Drymocallis glandulosa var. glandulosa W. R. Dudley 1894-5-30 s.n. San Mateo Near San Carlos - Santa Cruz Peninsula Comment
  CAS-BOT-BC67882  Dryopteris arguta C. F. Baker 1902-1-15 320 San Mateo West side King's Mountain Comment
  CAS-BOT-BC67893  Dryopteris arguta David D. Keck 1932-2-12 1361 San Mateo La Honda Road, east slope of Coast Range above Searsville Lake 304 Comment
  POM87721  Dryopteris arguta L. R. Abrams 1902-3-16 2273 San Mateo Kings Mountain Comment
  RSA176874  Dryopteris arguta John H. Thomas 1964-11-29 10543 San Mateo Jasper Ridge Biologicl Experimental Area about 5 miles SW of Palo Alto. Comment
  UC1063776  Dryopteris arguta G. E. Sindel 1935-8-2 321 San Mateo head of Harington Creek; Santa Cruz Quadrangle Comment
  CAS-BOT-BC389731  Dryopteris arguta J. Lovelle 1973-7-22 s.n. San Mateo Mt. Ellen Comment
  CAS-BOT-BC67894  Dryopteris arguta G. Edelbrock 1975-2-8 003 San Mateo SF watershed - Along roadcut at Stone Dam below Pilarcitos Lake 121 Comment
  CAS-BOT-BC71073  Dryopteris expansa George Oberlander 1950-3-18 581 San Mateo unspecified Comment
  CAS-BOT-BC109694  Dudleya farinosa Ira L. Wiggins 1929-7-14 3805 San Mateo Bluffs above Pescadero sand Beach. Comment
  CAS-BOT-BC428361  Dudleya farinosa L. R. Abrams 1909-8-2 4272 San Mateo At Pescadero Comment
  JROH1813  Dysphania ambrosioides John H. Thomas 1976-10-16 18419 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
  SJSU16065  Dysphania ambrosioides Toni Corelli 2009-9-9 438 San Mateo Half Moon Bay State Beach, in low dunes, Half Moon Bay 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
  JROH5088  Echinochloa crus-galli John Hunter Thomas 1979-9-9 19713 San Mateo Jasper Ridge Biological Preserve, Stanford University. Lake edge and delta. Comment
  UCR122579  Echium pininana George K. Helmkamp, E. A. Helmkamp 2001-6-2 6785 San Mateo San Francisco Bay Region, Purisima Creek Road, east of Half Moon Bay at Purisima Creek, 3.2 miles east of CA Hwy 1 244 Comment
  JROH5139  Elymus X gouldii John Rawlings 2011-8-2 1082 B San Mateo Jasper Ridge Biological Preserve, Stanford University; at edge of riparian woodland along San Francisquito creek SW of Dennis Martin site marker. 78 Comment
  POM319918  Elymus glaucus Barbara Shervanick 1973-4-1 797 San Mateo San Bruno Mts.; first summit on Crocker Rd. Comment
  CAS-BOT-BC203684  Elymus glaucus subsp. glaucus Ned Cahill 1974-5-18 301 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC203685  Elymus glaucus subsp. glaucus J. Clausen 1937-6-20 1529 San Mateo West of Redwood City near the Easter Cross Comment
  CAS-BOT-BC203688  Elymus glaucus subsp. glaucus John H. Thomas 1961-5-7 9255 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC203691  Elymus glaucus subsp. glaucus W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. South slope, Montara Mts. Comment
  UCD62392  Elymus glaucus subsp. virescens August L. Hormay 1932-5-29 San Mateo San Bruno. Comment
  CAS-BOT-BC235205  Elymus multisetus Ned Cahill 1974-5-30 306 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH5118  Elymus multisetus John H. Thomas 1967-6-1 12949 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM87686  Elymus trachycaulus subsp. trachycaulus Le Roy Abrams 1902-5-11 2452 San Mateo Crystal Springs. Comment
  SJSU15955  Elymus trachycaulus subsp. trachycaulus John Rawlings, Ken Hickman 2016-5-26 1832 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  JROH5277  Elymus triticoides Herbert Dengler 1960-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; 200 yds inside preserve from Mantilla Drive Comment
  JROH5279  Elymus triticoides Toni Corelli 2006-5-30 311 San Mateo Jasper Ridge Biological Preserve, Stanford University; along roadside at junction of main gate Road L and Road K to Leonard's residence 115 Comment
  CDA2050  Elytrigia repens Bruce Martin Aug 1949 San Mateo Coastal; Half Moon Bay, near San Francisco (about 30 mi. So.) 0 Comment
  POM254417  Epilobium brachycarpum F. W. Peirson 1925-9-13 6428 San Mateo Rockaway beach Comment
  CAS-BOT-BC166141  Epilobium canum subsp. canum John Thomas Howell 1932-10-19 10853 San Mateo Skyline Boulevard at summit of hills east of Half Moon Bay Comment
  RSA40475  Epilobium canum subsp. canum C. F. Leithold 1894-8-13 s.n. San Mateo Santa Cruz Mountain Peninsula: Devil s Canyon, branch of Pescadero and Mill Cr. Black Mt. Comment
  RSA51362  Epilobium canum subsp. canum L. S. Rose 1949-9-11 49178 San Mateo 2 miles west of Crystal Springs Lake, Skyline Blvd. Comment
  JROH3063  Epilobium densiflorum H. J. Dengler 1972-8-17 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of water along W. Searsville inlet Comment
  JROH3068  Epilobium densiflorum John Hunter Thomas 1981-7-12 20703 San Mateo Jasper Ridge Biological Preserve, Stanford University; on old beach Comment
  JROH4766  Epipactis helleborine Toni Corelli 2006-6-28 313 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 13 along causeway 106 Comment
  CAS-BOT-BC384628  Equisetum hyemale subsp. affine R. D. Hennessey 1964-4-26 70 San Mateo Area where Pilarcitos Creek empties into the ocean Comment
  CAS-BOT-BC57181  Equisetum hyemale subsp. affine Roxana S. Ferris 1921-3-20 2113 San Mateo Pescadero Creek Comment
  JROH74  Equisetum telmateia subsp. braunii Toni Corelli 2010-3-29 361 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 13, south side of Leonard's Bridge 106 Comment
  CHSC90173  Equisetum telmateia var. braunii Diane Mastalir 1988-3-27 4 San Mateo Near drainage ditch, 6.7 mi south of junction of Hwy 1 and Hwy 92, 1.7 mi east of Pescadero Road. 30 Comment
  POM25737  Equisetum telmateia var. braunii A. D. E. Elmer 1903-05 4602 San Mateo Cemeteries. Comment
  CAS-BOT-BC299887  Erechtites glomeratus Alice Eastwood 1915-6-13 s.n. San Mateo Granada Comment
  CDA4539  Erechtites minimus P. Arnaud 1958-7-13 839 -58 San Mateo San Mateo County Memorial Park. 0 Comment
  SEINET12141700  Eremocarpus setiger E. A. Purer 1933-1 5513 San Mateo Skyline Blvd Comment
  JROH3145  Eriastrum abramsii John H. Thomas 1961-6-7 9533 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JROH678  Erigeron canadensis Toni Corelli 2011-8-30 372 San Mateo Jasper Ridge Biological Preserve, Stanford University. South of Road B, in vicinity of Dennis Martin site sign 76 Comment
  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
  POM55669  Erigeron glaucus C. F. Baker 1902-10-1 1738 San Mateo Pillar Point. Comment
  SD40122  Erigeron glaucus Edith A. Purer 1933-7-27 5382 San Mateo Two miles south of Pigeon Point. Comment
  JROH694  Erigeron sumatrensis Toni Corelli 2011-8-30 371 a San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Dennis Martin site, above San Francisquito Creek 71 Comment
  JROH2728  Eriodictyon californicum John H. Thomas 1975-6-5 17938 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack Comment
  JROH5904  Eriodictyon californicum M. Ray 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail, west side of Searsville Dam Comment
  RSA766407  Eriogonum caninum D. D. Keck 1931-10-5 1281 San Mateo Dam at north end of Crystal Springs Lake. Comment
  CAS-BOT-BC253242  Eriogonum fasciculatum var. foliolosum Claire Etienne 1973-5-1 s.n. San Mateo Ca. 1 mi. north of Jtn. with Hwy. 84 (to Woodside) on Hwy. 280 Comment
  CAS-BOT-BC250549  Eriogonum gracile Ned Cahill 1974-4-29 193 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  UC912833  Eriogonum gracile Lewis S. Rose 1941-9-2 41432 San Mateo w Redwood City; Emerald Lake 91 Comment
  UC1537293  Eriogonum gracile Gordon H. True Jr. 1937-7-31 831 San Mateo roadside, Alpine Road Alpine Road 182 Comment
  CAS-BOT-BC251984  Eriogonum latifolium John H. Thomas 1963-5-20 10126 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC251988  Eriogonum latifolium C. F. Baker 1903-6-30 3359 San Mateo Pilarcitos Comment
  CAS-BOT-BC251991  Eriogonum latifolium Alice Eastwood 1937-7-25 18884 San Mateo Pebble Beach, Pescadero Comment
  SD88537  Eriogonum latifolium Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of Half Moon Bay Comment
  UC311072  Eriogonum latifolium A. D. E. Elmer July, 1903 4557 San Mateo Half Moon Bay Comment
  POM279949  Eriogonum latifolium Lyman Benson 1930-8-15 2565 San Mateo San Gregorio. Comment
  SDSU6740  Eriogonum latifolium D. F. Howe 1962-7-26 3356 San Mateo 1.1 miles south of San Mateo-Santa Cruz Co. line Comment
  UCSC007632  Eriogonum latifolium Randall Morgan 2004-7-23 4254 San Mateo Rockaway Beach Comment
  CAS-BOT-BC264771  Eriogonum luteolum David D. Keck 1931-10-5 1281 San Mateo Dam at north end of Crystal Springs Lake Comment
  CAS-BOT-BC264780  Eriogonum luteolum James L. Reveal; John H. Thomas 1975-7-31 3911 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto, south of San Francisquito Creek 182 Comment
  LA27120  Eriogonum luteolum var. luteolum L. S. Rose; 1941-9-2 41432 San Mateo W of Redwood City, Emerald Lake 90.0 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
  CAS-BOT-BC268997  Eriogonum nudum var. auriculatum J. H. Thomas 1958-6-11 7226 San Mateo About 4.3 miles due east of Belmont near Crystal Springs Reservoir 91 Comment
  CAS-BOT-BC269000  Eriogonum nudum var. auriculatum Javier Penalosa 1963-3-30 2717 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF 91 Comment
  OBI10996  Eriogonum nudum var. auriculatum Lewis S. Rose 1964-9-9 64074 San Mateo Emerald Lake, W of Redwood City 244 Comment
  POM165061  Eriogonum nudum var. auriculatum A. D. E. Elmer 1903-06 4311 San Mateo Crystal Springs Lake. Comment
  SBBG39490  Eriogonum nudum var. auriculatum L. S. Rose 1970-7-26 70080 San Mateo Hillsborough, Black Mtn, Skyline Blvd 121 Comment
  UC614886  Eriogonum nudum var. auriculatum Beryl O. Schreiber 1932-5-29 306 San Mateo Crystale Springs Comment
  CAS-BOT-BC261452  Eriogonum nudum var. nudum Elizabeth McClintock; Paul Reeberg 1988-4-14 s.n. San Mateo San Bruno Mountains. On easternmost ridge above Shearwater Comment
  CAS-BOT-BC304073  Eriophyllum confertiflorum Fred Hemphill 1973-4-22 769 San Mateo San Carlos. N of Malabar Rd and Melendry Dr 207 Comment
  CAS-BOT-BC304082  Eriophyllum confertiflorum Lewis S. Rose 1933-5-17 33176 San Mateo Redwood City Comment
  JROH716  Eriophyllum confertiflorum var. confertiflorum John Hunter Thomas 1989-5-9 24717 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC301270  Eriophyllum lanatum var. arachnoideum W. R. Dudley 1895-9-15 s.n. San Mateo Santa Cruz Mountain Peninsula. El Corte Madera road down to Lumber Camp Comment
  RSA116762  Eriophyllum lanatum var. arachnoideum Josephine Randall 1907-6-29 68 San Mateo Santa Cruz Peninsula, King's Mountain Road. Comment
  CHSC22930  Eriophyllum staechadifolium Robert A. Schlising; Glenn Keator 1962-2-3 2045 San Mateo Coast Ranges. Slope along Highway 1, 3.9 mi N of Jct with Bonnie Doon Road. Comment
  CHSC335  Eriophyllum staechadifolium H. Holder 1949-5-15 San Mateo Near San Francisco bay. 9 Comment
  RSA17884  Eriophyllum staechadifolium C. B. Wolf 1927-6-29 s.n. San Mateo Pescadero. Comment
  CAS-BOT-BC301974  Eriophyllum staechadifolium Alice Eastwood 1914-10-1 s.n. San Mateo Mussel Rock Comment
  CAS-BOT-BC301975  Eriophyllum staechadifolium Saichi Kawahara 1968-6-15 436 San Mateo Pescadero Beach, 150 yards south of mouth of Pescadero Creek, Highway 1 4 Comment
  CAS-BOT-BC301978  Eriophyllum staechadifolium Elizabeth McClintock 1967-6-24 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  UCSC007743  Eriophyllum staechadifolium Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  SEINET11850781  Eriophyllum staechadifolium var. artemisiaefolium Unknown 1932-1 9155 San Mateo Gov. Rolph Estate Comment
  JROH2591  Erodium botrys John H. Thomas 1967-6-1 12948 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2594  Erodium botrys John H. Thomas 1969-4-12 14888 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2605  Erodium cicutarium John H. Thomas 1977-4-19 18536 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU16023  Eryngium armatum John Rawlings, Toni Corelli 2016-5-13 1792 San Mateo Vallemar Bluff, Moss Beach. USGS Montara Mountain OE W 7.5 Minute (1:24,000 Scale) Topographic Map. 11 Comment
  UC874914  Eryngium armatum Alice Eastwood and John Thomas Howell 1938-6-26 6065 San Mateo Arroyo de los Frijoles Comment
  JROH244  Eryngium jepsonii John Hunter Thomas 1992-6-8 25368 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC54511  Erysimum capitatum G. B. Rossbach; R. P. Rossbach 1938-6-12 860 San Mateo Coast Range. La Honda grove. 121 Comment
  CAS-BOT-BC54848  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-3-26 901 a and 901b ripe pods San Mateo Dunes just back of high sea cliff very near Sharp Park (Salada Beach). Comment
  CAS-BOT-BC54852  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-3-28 905 a fl. 905b fr. San Mateo San Mateo Creek, below Crystal Springs Lake. 60 Comment
  CAS-BOT-BC54867  Erysimum franciscanum Le Roy Abrams 1902-5-11 2443 San Mateo Crystal Lake. Comment
  POM143484  Erysimum franciscanum C. F. Baker 1902-3-22 342 San Mateo Crystal Spring Lake Comment
  POM210208  Erysimum franciscanum H. E. Parks 1930-3-10 401 San Mateo Spring Valley Lakes Comment
  RSA102110  Erysimum franciscanum G. B. Rossbach 1955-3-12 566 San Mateo SE end of Buriburi Ridge, NW side of San Mateo Creek 76 Comment
  RSA102128  Erysimum franciscanum G. B. Rossbach 1955-3-26 573 San Mateo 1 mile North of Sharp Park (Salada) 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
  UC1034942  Erysimum franciscanum G. B. Rossbach 1938-5-18 837 San Mateo open bank on e side Crystal Springs Lake 106 Comment
  SJSU12766  Erysimum franciscanum S. L. Jones 1986-4-6 87 San Mateo Montara Mt 188 Comment
  SEINET10667980  Erythranthe arvensis Edward L. Greene Greene s.n. San Mateo Belmont. Comment
  SD37720  Erythranthe guttata Marie Cummings 1933-5-23 3722 San Mateo Spring Valley Comment
  JROH5782  Erythranthe microphylla John Rawlings 2015-5-3 1776 San Mateo Jasper Ridge Biological Preserve, Stanford University; vernally wet area in serpentine prairie (Area C) 170 Comment
  SD40077  Eschscholzia californica Edith A. Purer 1933-7-27 5384 San Mateo 2.0 miles south of Pigeon Point. Comment
  CAS-BOT-BC403554  Eschscholzia californica W. S. Chandler 1901-3-30 s.n. San Mateo San Mateo Comment
  CAS-BOT-BC403555  Eschscholzia californica T. S. Brandegee May 20 s.n. San Mateo Searsville Comment
  CAS-BOT-BC403558  Eschscholzia californica W. R. Ernst 1957-4-2 102 San Mateo Near junction of Highway 1 and Skyline Blvd. among San Francisco Headlands 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
  JEPS9607  Euonymus occidentalis var. occidentalis Miss Susie Mott 1930-9-24 San Mateo Butano Canyon Santa Cruz Mts., Butano Canyon Comment
  UC1130403  Euphorbia crenulata H. S. Yates 1935-2-3 5002 San Mateo 2 mi s San Gregorio; Santa Cruz Quad. 152 Comment
  CDA4815  Euphorbia helioscopia I. J. Campbell 1956-6-3 San Mateo Pescardo, Pedro Valley. 0 Comment
  RSA176579  Euphorbia lathyris John H. Thomas 1964-6-28 10435 San Mateo Along Half Moon Bay - Crystal Springs Lake road, about 2.2 mi, e of Half Moon Bay. Comment
  UCR121567  Euphorbia lathyris George K. Helmkamp, E. A. Helmkamp 1999-6-28 4993 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  JROH531  Eurybia radulina John Rawlings 2011-10-18 1089 San Mateo Jasper Ridge Biological Preserve, Stanford University. SW end of Road C bridge over San Francisquito Creek. 88 Comment
  JROH528  Eurybia radulina L. R. Abrams 1916-10-14 6350 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  JROH727  Euthamia occidentalis John H. Thomas 1974-9-19 17600 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bridge Comment
  UC1557839  Euthamia occidentalis J. Semple and S. Heard 1986-8-23 8596 San Mateo 7.5 km N of Santa Cruz Co line on CA-1 Comment
  JROH5154  Festuca arundinacea John Hunter Thomas 1982-6-7 21034 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5160  Festuca arundinacea John Hunter Thomas 1987-5-26 24320 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5169  Festuca arundinacea John Hunter Thomas 1992-5-14 25231 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat ramp. Comment
  JROH5472  Festuca bromoides John Hunter Thomas 1981-4-23 20492 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA130809  Festuca californica David D. Keck; 1932-5-11 1499 San Mateo above Woodside on La Honda rd, E slope of Santa Cruz Mountains Comment
  SEINET3129197  Festuca californica L. R. Abrams 1902-5-11 2461 San Mateo Capitol springs Comment
  CAS-BOT-BC278359  Festuca californica subsp. californica Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo San Bruno Mountain. West slope of San Bruno Mountain Comment
  CAS-BOT-BC210029  Festuca idahoensis Peter Rubtzoff 1980-5-3 9436 San Mateo San Bruno Mountains. The Edward Preston Lee Memorial Site and vicinity. Comment
  JROH5491  Festuca microstachys Stephen N. Turitzin 1976-3-7 5 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5769  Festuca microstachys Herb Dengler 1957-4-21 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Top of dome. Comment
  JROH5494  Festuca myuros Herbert Dengler 1957-4-21 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JROH5293  Festuca perennis John H. Thomas 1959-8-22 8086 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU16015  Festuca perennis John Rawlings, Ken Hickman 2016-5-26 1810 San Mateo Serpentine seep area (Fountain thistle seep) up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  SEINET10805323  Foeniculum vulgare Walter H. Lewis 1989-10-31 Lewis 14676 San Mateo Redwood City, Seapark Blvd., past area by San Francisco Bay. Comment
  UCD164213  Foeniculum vulgare Peter Rubtzoff 1978-9-16 9269 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction; in upper part of East Fork Colma Creek canyon. Comment
  UC1536909  Fragaria chiloensis Gordon H. True 1937-3-31 616 San Mateo Salada Beach Comment
  UC203052  Fragaria chiloensis A. D. E. Elmer Apr 1903 4799 San Mateo San Pedro Comment
  CAS-BOT-BC457534  Fragaria vesca subsp. californica Alice Eastwood 1913-2-22 2454 San Mateo San Bruno Hills Comment
  JROH3534  Frangula californica subsp. californica John H. Thomas 1961-6-14 9540 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC211602  Frankenia salina John Hunter Thomas 1949-10-16 1142 San Mateo Along ocean bluff, just north of outlet of San Gregorio Creek 60 Comment
  SEINET3151930  Frankenia salina L. S. Rose 1938-8-18 38230 San Mateo Brisbane 2 Comment
  UC872056  Frankenia salina Roxana Stinchfield 1915-9-19 251 San Mateo salt marshes Santa Cruz Mountain Peninsula, Palo Alto Comment
  CAS-BOT-BC223554  Fraxinus latifolia A. D. E. Elmer 1903-7-1 4615 San Mateo San Mateo Comment
  CAS-BOT-BC223555  Fraxinus latifolia W. R. Dudley 1894-10-24 s.n. San Mateo Santa Cruz Peninsula. Near San Francisquito Creek Comment
  UCD122086  Fraxinus latifolia Alan T. Whittemore 1976-5-29 108 San Mateo Crystal Springs Canyon, San Mateo Creek, 1/2 mile east of dam on Crystal Springs Road. 39 Comment
  CAS-BOT-BC130127  Fritillaria affinis Javier Penalosa 1963-3-9 2702 San Mateo Ravine 1/2 mi. east of 1314 ft. summit 304 Comment
  JROH4685  Fritillaria affinis John H. Thomas 1977-4-29 18573 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1085319  Fritillaria affinis F. A. Pitelka 1946-4-13 San Mateo Pilarcitos Lake Comment
  UC143429  Fritillaria affinis C. F. Baker 1902-3-30 430 San Mateo Crystal Springs Lake; Pacific Coast, Crystal Springs Lake Comment
  CAS-BOT-BC130211  Fritillaria agrestis Roxana S. Ferris 1921-3-21 2120 San Mateo Nears Years Point 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
  SEINET3557637 Image available Fritillaria liliacea Lewis S. Rose 1933-4-2 22049 San Mateo Redwood City. Comment
  CAS-BOT-BC290702  Fumaria Peter Rubtzoff; B. Anderson 1988-4-12 9900 San Mateo San Bruno Mountain. Saddle area on north side of Guadelupe Canyon Parkway west of Radio Road junction; NW part of the area, near the old Guadalupe Road between Bog Trail and Saddle Trail Junctions. Comment
  RSA800331  Galium Peter Rubtzoff 1988-6-25 9928 San Mateo Menlo Park, on Willow Road near Alma Street. Comment
  CAS-BOT-BC164660  Galium aparine Peter Rubtzoff; Roman Gankin 1974-12-17 7943 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JEPS127813  Galium aparine Adam C. Schneider with C. Matt Guilliams 2013-4-7 77 San Mateo Comment
  UCD166156  Galium californicum Jack Major; M. Forde and S. Bamberg 1962-4-3 741 a San Mateo Above Coastways Ranch on Finney Creek. (Exact location unknown. Coordinates estimated by label maker.) Comment
  JROH3787  Galium murale John H. Thomas 1961-4-8 9074 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3817  Galium porrigens var. porrigens John Hunter Thomas 1986-5-17 24046 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dam to Rattlesnake Rock Comment
  JROH799  Gamochaeta ustulata John Hunter Thomas 1985-5-7 23644 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC303469  Gamochaeta ustulata R. E. Frenkel 1964-4-2 415 San Mateo On Spring Valley Ridge Rd, SFWD, at junction of Spring Valley Ridge Rd and Whiting Ridge Rd 347 Comment
  RSA218010  Gamochaeta ustulata Phillip Wheeler 1965-5-12 s.n. San Mateo Pig Ranch Ravine; San Bruno Mountains. Comment
  UC21591  Garrya elliptica J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  SEINET12137147  Garrya elliptica Cummings 1933-1 s.n. San Mateo top of Jasper Ridge Comment
  CAS-BOT-BC278665  Gastridium phleoides C. F. Leitholt 1894-7-30 s.n. San Mateo Santa Cruz Mountain Peninsula. La Honda Comment
  JROH5195  Gastridium phleoides John Hunter Thomas 1984-5-2 23327 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC278712  Gastridium ventricosum Elizabeth McClintock; Paul Reeberg 1988-8-12 s.n. San Mateo San Bruno Mountain. Along drainage ditch west of the Quarry; Crocker Industrial Park 45 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-BC219150  Genista monspessulana Walter Knight; Irja Knight 1967-5-16 s.n. San Mateo Brisbane Comment
  JROH2002  Genista monspessulana John Hunter Thomas 1978-5-23 19222 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2015  Genista monspessulana John Hunter Thomas 1985-5-7 23640 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bridge Comment
  JROH2612  Geranium dissectum John H. Thomas 1968-4-19 14305 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3153  Gilia achilleifolia subsp. multicaulis John H. Thomas 1971-4-25 15783 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3162  Gilia clivorum Elmer I. Applegate 1895-5-11 343 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Comment
  SD38795  Gilia tricolor Alice Spalding 1933-4-18 3724 San Mateo Comment
  CAS-BOT-BC266511  Githopsis diffusa Margaret A. Barry 1937-5-15 s.n. San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC303686  Glebionis coronaria Walter & Irja Knight 1965-4-24 1083 San Mateo San Bruno Mt. Pig Ranch Ravine 45 Comment
  UCR240781  Glehnia littoralis subsp. leiocarpa T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3515 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
  RSA218004  Gnaphalium ramosissimum Walter Knight, I. Knight 1963-8-5 s.n. San Mateo Horseshoe Ridge; Plants of San Bruno Mountain. Comment
  CDA6058  Gnaphalium stramineum A. C. Browne 1950-8-12 San Mateo Alpine Creek. 0 Comment
  POM359103  Grindelia D. D. Keck 1931-9-27 1273 San Mateo Dumbarton Bridge. Comment
  CAS-BOT-BC304503  Grindelia hirsutula Le Roy Abrams 1901-9-1 2221 San Mateo Cooleys Landing Comment
  CAS-BOT-BC304512  Grindelia hirsutula John Thomas Howell 1964-12-6 41032 San Mateo Vacant lot near Southern Pacific R. R. station, Millbrae Comment
  CAS-BOT-BC304526  Grindelia hirsutula Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  CAS-BOT-BC304549  Grindelia hirsutula Javier Penalosa 1963-3-30 2736 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF 289 Comment
  CAS-BOT-BC304552  Grindelia hirsutula W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Peninsula. By road from Pilarcitos to San Andreas Comment
  SEINET3139960  Grindelia hirsutula M. P. Dunford 1959-10-3 549 San Mateo Crystal Springs Lake, 1/4 mi N of jct of Hwy 5 (Skyline Blvd) & Ralston Avenue Comment
  UC472386  Grindelia hirsutula Katharine Brandegee 1908-7-1 San Mateo near Halfmoon Bay (Moss Beach); Moss Beach Comment
  UC520425  Grindelia hirsutula J. A. Moore and J. A. Steyermark 1931-8-7 3684 San Mateo South San Francisco 0 Comment
  CAS-BOT-BC304539  Grindelia hirsutula Alice Eastwood; John Thomas Howell 1939-7-9 7440 San Mateo Skyline Blvd. east of La Honda Comment
  JROH814  Grindelia hirsutula John H. Thomas 1961-6-14 9538 San Mateo Jasper Ridge Biological Preserve, Stanford University; in "parking area" at Searsville end of Lake Comment
  RSA0116908  Grindelia stricta var. angustifolia Lyman Benson 1945-7-29 11839 San Mateo Bayshore Highway at San Carlos. 3 Comment
  SEINET11835893  Grindelia stricta var. angustifolia E. A. Purer 1933-1 5525 San Mateo no further locality Comment
  POM204326  Grindelia stricta var. platyphylla I. L. Wiggins 1929-7-4 3799 San Mateo Pescadero Beach Comment
  RSA18345  Grindelia stricta var. platyphylla C. B. Wolf 1927-1-29 473 San Mateo Pescadero Comment
  RSA184825  Grindelia stricta var. platyphylla L. S. Rose 1965-9-4 65102 San Mateo Pillar Point. 15 Comment
  UCR240778A  Grindelia stricta var. platyphylla T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3518 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
  JROH5202  Hainardia cylindrica John Rawlings 2005-5-30 1007 San Mateo Jasper Ridge Biological Preserve, Stanford University. At back of field station at edge of brick patio. 121 Comment
  SEINET11849180  Haplopappus ericoides E. A. Purer 1933-1 5511 San Mateo Skyline Drive Comment
  JROH841  Helenium puberulum John Hunter Thomas 1981-7-12 20696 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM54261  Helenium puberulum A. D. E. Elmer 1903-07 4972 San Mateo Crystal Springs Lake Comment
  RSA3886  Helenium puberulum I. L. Wiggins 1929-7-4 3791 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  UC943014  Helenium puberulum Lewis S. Rose 1949-8-10 49157 San Mateo Skyline Blvd. w Tanforan 121 Comment
  CAS-BOT-BC309539  Helenium puberulum E. H. Richardson 1906-10-1 s.n. San Mateo Cooleys Landing Comment
  JEPS35430  Helenium puberulum James G. Daly 239 San Mateo San Gregorio watershed Santa Cruz Mts., San Gregorio Comment
  JROH852  Helianthella californica var. californica John H. Thomas 1967-5-12 12880 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1837  Helianthemum scoparium John H. Thomas 1969-5-28 15077 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC305365  Helianthus annuus J. H. Thomas 1959-12-18 8521 San Mateo Near Palo Alto Yacht Harbor Comment
  SEINET3892510  Helminthotheca echioides R. L. Johnson 2012-4-6 12 -002 San Mateo Half Moon Bay, roadside on Redondo Beach Rd.; 0 25 Comment
  CAS-BOT-BC305929  Helminthotheca echioides Walter Knight; Walter Knight 1963-6-24 s.n. San Mateo San Bruno Mountain. Quarry 4 Comment
  JROH1166  Helminthotheca echioides John H. Thomas 1964-11-15 10525 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along road at edge of Searsville Lake. Comment
  CAS-BOT-BC314913  Hemizonia congesta subsp. luzulifolia Ned Cahill 1974-8-26 365 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi. westward from Redwood City Comment
  CAS-BOT-BC314938  Hemizonia congesta subsp. luzulifolia Cherie Wetzel 1969-6-20 886 San Mateo Near Canada College, Redwood City just off of Farm Hill Blvd. Comment
  CAS-BOT-BC314948  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1914-7-15 5140 San Mateo Crystal Springs Comment
  JROH865  Hemizonia congesta subsp. luzulifolia John H. Thomas 1967-11-5 14129 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC134605  Hemizonia congesta subsp. luzulifolia C. F. Baker 1908-6-30 3350 San Mateo Crystal Springs 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
  CAS-BOT-BC314934  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1907-8-6 s.n. San Mateo Low ground east of causeway, Crystal Springs Lakes Comment
  CAS-BOT-BC314944  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-14 10227 San Mateo North of Belmont Comment
  POM299466  Hemizonia corymbosa subsp. corymbosa L. S. Rose 1941-8-9 41361 San Mateo Moss Beach. 16 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
  RSA184852  Hemizonia luzulifolia L. S. Rose 1965-8-27 65094 San Mateo Emerald Lake, West of Redwood City 183 Comment
  POM195795  Hemizonia luzulifolia L. R. Abrams 1914-7-15 5140 San Mateo Crystal Springs. Comment
  RSA18316  Heracleum maximum C. B. Wolf 1929-5-20 3720 San Mateo No. end of Searsville Lake. Comment
  UCR123139  Heracleum maximum George K. Helmkamp, E. A. Helmkamp 2001-6-2 6788 San Mateo San Francisco Bay Region, Purisima Creek Road, east of Half Moon Bay at Purisima Creek, 3.2 miles east of CA Hwy 1 244 Comment
  POM287748  Heracleum maximum Lyman Benson 1931-4-13 2710 San Mateo Behind Stanford University, bottom land at junction with Corte Madera Creek Comment
  JROH898  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1987-5-5 24253 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC403865  Hesperocnide tenella Walter Knight; Irja Knight 1964-5-30 615 San Mateo San Bruno Mountain. Colma Canyon Comment
  CAS-BOT-BC403868  Hesperocnide tenella H. A. Dutton 1900-5-6 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  SBBG28494  Hesperocyparis abramsiana var. abramsiana H. A. Dutton -Sep-1949 San Mateo North Fk of Butano Crk (common corner of Section 11 and 12 and 13 and 14, range 4W) Comment
  CAS-BOT-BC176205  Hesperolinon congestum L. S. Rose 1931-5-15 s.n. San Mateo Emerald Lake west of Redwood City Comment
  UC1219880  Hesperolinon congestum John H. Thomas 1961-5-14 9379 San Mateo road bank and outcropping just n dam on San Mateo Creek 121 Comment
  UC725506  Hesperolinon congestum A. A. Heller 1907-5-28 8572 San Mateo near Crystal Springs Comment
  JROH2932  Hesperolinon micranthum John Hunter Thomas 1981-5-19 20614 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM139231  Hesperolinon micranthum A. D. E. Elmer 1903-05 4422 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC422604  Hesperomecon linearis A. D. E. Elmer 1903-5-1 4594 San Mateo San Bruno Hills Comment
  JROH1647  Heterocodon rariflorum Ann Lambrecht 2009-5-13 37 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just off Trail 10 west of big drainage. Comment
  CAS-BOT-BC148464  Heteromeles arbutifolia John H. Thomas 1971-5-2 15865 San Mateo Near intersection of Canada and Edgewater Roads. About 4 miles SW of center of Redwood City. 304 Comment
  CAS-BOT-BC148465  Heteromeles arbutifolia J. H. Thomas 1949-10-16 1156 San Mateo Between Skyline Drive and Searsville Lake 304 Comment
  CAS-BOT-BC148468  Heteromeles arbutifolia Margaret A. Barry 1937-6-24 179 San Mateo Exposed slopes on Coal Mine Ridge Comment
  RSA0072445  Heteromeles arbutifolia John H. Thomas 1958-11-22 7504 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  RSA71287  Heteromeles arbutifolia L. S. Rose 1949-8-10 49156 San Mateo Skyline Blvd, W of Tanforan 122 Comment
  SD49795  Heteromeles arbutifolia John H. Thomas 1958-11-22 7504 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. North central portion of ridge. 152 Comment
  JEPS125948  Heterotheca sessiliflora subsp. bolanderi D. W. Taylor 2000-7-20 17537 San Mateo Montara Mountain, on Montara State Beach, along dirt road 1 mile W from North Peak. Comment
  JROH3884  Heuchera micrantha John H. Thomas 1970-5-16 15628 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0063102  Heuchera micrantha var. hartwegii G. Oberlander 1950-5-28 955 San Mateo Pilarcitos Canyon. San Francisco Watershed Reserve. Comment
  SBBG30746  Hierochloe occidentalis C. Bornstein 1994-6-7 San Mateo Gazos Crk Rd, 3.6 mi E of Hwy 1 Comment
  UC75024  Hierochloe occidentalis C. F. Baker 1902-1-15 247 San Mateo w side of mountain King's Mountain Comment
  JEPS48461  Hierochloe occidentalis James G. Daly 1934-1 179 San Mateo 3 mi w Skyline Boulevard Comment
  CAS-BOT-BC55443  Hirschfeldia incana J. H. Thomas 1963-8-4 10234 San Mateo About 2.5 miles inland from San Gregorio along the highway. Comment
  CAS-BOT-BC55444  Hirschfeldia incana George Oberlander 1949-7-24 290 San Mateo San Francisco Watershed. Grassland about San Andreas Lake. Comment
  CAS-BOT-BC289248  Holcus lanatus Josephine D. Randall 1907-7-23 158 San Mateo Near Crystal Springs Lake, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC289253  Holcus lanatus Philip Wheeler 1965-6-8 s.n. San Mateo Crocker Industrial Park, San Bruno Mountain Comment
  RSA17940  Holcus lanatus C. B. Wolf 1927-6-13 s.n. San Mateo La Honda Grade. Comment
  LA207940  Holodiscus discolor David D. Keck; 1932-6-1 1795 San Mateo Santa Cruz Mountains, Above Searsville Lake, on road between Woodside and Skyline Blvd Comment
  RSA262239  Holodiscus discolor John H. Thomas 1971-5-30 15982 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  UCR121543  Holodiscus discolor George K. Helmkamp, E. A. Helmkamp 1999-6-28 4973 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  RSA681423  Holodiscus discolor Annuschka Deb 1989-7-19 315 San Mateo YBN [Yerba Buena Nursery], Woodside. Comment
  CAS-BOT-BC150055  Holodiscus discolor var. discolor Eric Walther 1919-6-19 s.n. San Mateo Woodside Comment
  CAS-BOT-BC150058  Holodiscus discolor var. discolor John H. Thomas 1961-5-7 9281 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CDA32405  Hordeum brachyantherum G. M. Gregory 1962-5-1 San Mateo Crocker Hills, Brisbane 0 Comment
  SEINET7297786 Image available Hordeum brachyantherum David D. Keck 1932-1 1463 San Mateo Belmont; Common in fields near the salt marshes of San Francisco Bay. Comment
  CAS-BOT-BC284680  Hordeum brachyantherum subsp. brachyantherum David D. Keck 1932-5-6 1465 San Mateo Belmont Comment
  CAS-BOT-BC289533  Hordeum brachyantherum subsp. californicum Ned Cahill 1974-4-29 183 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi westward from Redwood City Comment
  CAS-BOT-BC285047  Hordeum depressum Le Roy Abrams 1901-5-1 1651 San Mateo Cooley's Landing Comment
  POM295720  Hordeum depressum Lyman Benson 1930-5-12 2125 San Mateo Stanford University. 152 Comment
  JROH5246  Hordeum marinum subsp. gussoneanum John Hunter Thomas 1986-5-17 24050 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dam to Rattlesnake Rock. Comment
  SBBG33373  Hordeum marinum subsp. gussoneanum A. D. E. Elmer -May-1901 1660 San Mateo Cooley's [Cooley] Landing Comment
  CAS-BOT-BC271354  Hordeum vulgare Fred Hemphill 1973-4-15 671 San Mateo Area north of Malabar Road and Melendy Drive, San Carlos 207 Comment
  CAS-BOT-BC271358  Hordeum vulgare Ned Cahill 1974-5-13 269 San Mateo Near the intersection of Canada and Edgwood Roads about 3 mi. westward from Redwood City Comment
  RSA138172  Hordeum vulgare W. R. Dudley 1896-4-4 s.n. San Mateo Near Crystal Springs Comment
  RSA18459  Horkelia californica Carl B. Wolf 1927-6-29 548 San Mateo South of Pebble Beach near Pescadero. Comment
  UC625417  Horkelia californica L. R. Abrams and I. L. Wiggins 1939-6-3 436 San Mateo 1/2 mi inland the sand dunes (along cultivated field); Ano Nuevo Point Comment
  CAS-BOT-BC143922  Horkelia cuneata var. sericea W. R. Dudley 1901-5-11 s.n. San Mateo Near Colma Comment
  SD27829  Hosackia gracilis Carl B. Wolf 1929-5-10 3703 San Mateo Pigeon Point, south of Pescadero 99 Comment
  UCD77838  Hosackia stipularis Robert E. Preston 2001-6-1 1538 San Mateo Ca. 7 mi nw of Boulder Creek. 658 Comment
  UCD128238  Hydrocotyle sibthorpioides O. M. Scott and Sons 1950-4-10 s.n. San Mateo San Mateo. Comment
  UCD160240  Hypericum canariense Christopher Dillis 2015-5-15 3 San Mateo South of Pescadero on Hwy 1 (Cabrillo Hwy), 400 m south of Highway Brewing Company, then east 120 m on unmarked 1-lane dirt road; 10 m southwest of intersection with Old Coast Highway. 200 Comment
  JROH912  Hypochaeris glabra John H. Thomas 1961-4-29 9187 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5554861  Hypochaeris glabra H. S. Gentry 1931-1 97 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  UC101765  Hypochaeris glabra Katharine Brandegee 1891-6-1 San Mateo South San Francisco Comment
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Apr 1 2009
  CAS-BOT-BC311483  Hypochaeris radicata John H. Thomas 1958-3-19 7057 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  CDA34775  Hypochaeris radicata D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .174 San Mateo Swanton Rd just S of Ano Nuevo above Weddell Creek. Comment
  JROH928  Hypochaeris radicata John H. Thomas 1974-5-3 17237 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH931  Hypochaeris radicata John Hunter Thomas 1977-6-16 18759 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old racing oval Comment
  UC1069670  Hypochaeris radicata N. K. Carlson 1935-6-29 109 San Mateo 1 mi s Pescadero; Santa Cruz Quad. Comment
  UC1598591  Hypochaeris radicata A. D. E. Elmer 1903-4-1 4861 San Mateo Lake San Andreas Comment
  RSA14212  Hypochaeris radicata C. B. Wolf 1926-10-19 199 San Mateo East slope of La Honda Grade; Santa Cruz Mts. Comment
  CAS-BOT-BC133650  Iris longipetala William R. Dudley 1893-4-1 s.n. San Mateo So. San Francisco, above Millbrae Comment
  CAS-BOT-BC133657  Iris longipetala W. R. Dudley 1894-5-1 s.n. San Mateo On road from Woodside to Crystal Springs Comment
  CAS-BOT-BC133661  Iris longipetala George Oberlander 1950-4-2 587 San Mateo San Andreas Lake Comment
  CAS-BOT-BC133673  Iris longipetala Javier Penalosa 1963-3-30 2707 San Mateo North of Randolph Drive at Hillside Blvd. in SSF 91 Comment
  OBI2898  Iris longipetala Lewis S. Rose 1968-3-26 68009 San Mateo South base of San Bruno Mts, South San Francisco 30 Comment
  UC1057443  Iris longipetala G. Thomas Robbins 1937-4-11 82 San Mateo slopes above Spring Valley Lake (s of San Francisco) Comment
  UC844901  Iris longipetala Lewis S. Rose 1938-4-1 38111 San Mateo above Visitacion Valley; San Bruno Hills 60 Comment
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Oct 22 2013
  RSA32647  Iris missouriensis Carl B. Wolf 1943-3-3 11443 San Mateo Visitation Point, along the Bayshore Highway, just north of community of Brisbane 61 Comment
  JROH4435  Iris pseudacorus M. Whitley 1990-4-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By floats in Searsville Lake. Comment
  CAS-BOT-BC57732  Isoetes howellii J McMurphy 1906-7-28 s.n. San Mateo Coal Mine Ridge - near Portola Comment
  JEPS63782  Isolepis cernua William S. Cooper 1919-7-22 204 San Mateo Ano Nuevo Pt Comment
  SEINET4170785 Image available Isolepis cernua Malcolm A. Nobs, S. Galen Smith 1949-8-15 1565 San Mateo Marshes at sharp Park Comment
  CAS-BOT-BC340136  Jaumea carnosa LeRoy Abrams 1901-9-1 2224 San Mateo Cooley's Landing Comment
  JROH2771  Juglans hindsii John H. Thomas 1976-11-5 18432 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  JROH2774  Juglans hindsii John H. Thomas 1980-11-18 20174 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET11788499  Juncus bolanderi Unknown 1932-1 9111 San Mateo above Spring Valley Lakes Comment
  JROH4465  Juncus bufonius var. occidentalis John H. Thomas 1973-4-14 16561 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1101029  Juncus hesperius Herbert L. Mason and Verne Grant 1946-8-28 13088 San Mateo s of San Francisco (on Santa Cruz-Daly City Road #5) Comment
  JROH4478  Juncus occidentalis John H. Thomas 1963-5-12 10078 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4490  Juncus occidentalis John Hunter Thomas 1983-5-23 22246 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near shack side & low-flow crossing. Comment
  JROH4497  Juncus occidentalis John Hunter Thomas 1988-5-25 24489 San Mateo Jasper Ridge Biological Preserve, Stanford University. Road near low flow crossing. Comment
  JROH4499  Juncus patens John H. Thomas 1973-6-15 16828 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC182762  Juncus phaeocephalus Peter Rubtzoff 1980-8-4 9561 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Westernmost part of the area on slope across fence. Comment
  UCR244622  Juncus phaeocephalus var. paniculatus Peter Rubtzoff 1979-7-26 9298 San Mateo 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, San Bruno Mountains 213 Comment
  UCR244655  Juncus phaeocephalus var. paniculatus Peter Rubtzoff 1980-8-4 9563 San Mateo Central Coast, San Bruno Mountains. 'Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; westernmost part of the area on slope across fence 220 Comment
  JEPS67129  Juncus phaeocephalus var. phaeocephalus unknown 1925-5-28 1 San Mateo Salada Comment
  JROH4037  Keckiella antirrhinoides var. antirrhinoides D. E. Breedlove 1971-5-31 19363 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  HSC23945  Kickxia spuria Mary Katherine Wicksten 1971-7-15 172 San Mateo Huddart Park, along wall in front of residence Comment
  UC1738871  Koeleria macrantha Dean W. Taylor 1988-3-30 9491 San Mateo San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest; right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain 176 Comment
  JROH946  Lactuca saligna John H. Thomas 1976-10-16 18415 San Mateo Jasper Ridge Biological Preserve, Stanford University; along or near San Francisquito Creek from the low flow crossing to the vicinity of the old fireplace ruins downstream Comment
  JROH954  Lactuca virosa Toni Corelli 2006-8-8 315 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along causeway on trail 13, west of Leonard's bridge. 106 Comment
  JROH5926  Lasthenia L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; on the high point of Jasper Ridge Comment
  UCSC003371  Lasthenia Randall Morgan 2001-5-9 3727 San Mateo Bean Hollow State Beach, San Mateo County Comment
  CAS-BOT-BC339052  Lasthenia californica A. D. E. Elmer 1903-4-1 4738 San Mateo San Bruno Hills Comment
  CAS-BOT-BC339063  Lasthenia californica V. F. Hesse 1964-5-26 3207 San Mateo Pigeon Point 4 Comment
  POM55213  Lasthenia californica A. D. E. Elmer 1903-04 4507 San Mateo San Bruno Hills Comment
  CAS-BOT-BC339049  Lasthenia californica Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  CAS-BOT-BC339080  Lasthenia californica W. R. Dudley 1894-4-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Near top of Black Mountain Comment
  RSA116658  Lasthenia californica Roxana S. Ferris 1921-4-7 2128 San Mateo San Bruno Mt.; Plants of the Santa Cruz Mountain Peninsula. 213 Comment
  JEPS10183  Lasthenia californica subsp. californica W. L. Jepson 1919-4-19 8230 San Mateo San Bruno Hills Comment
  JROH972  Lasthenia californica subsp. californica John H. Thomas 1957-4-16 6657 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15209  Lasthenia californica subsp. californica Teri Barry 2010-4-23 San Mateo Jasper Ridge Biological Preserve southeast of Trail 9 near the intersection of Road F and Trail 9. 186 Comment
  UC483354  Lasthenia californica subsp. californica W. R. Dudley 1897-5-1 San Mateo south San Francisco Comment
  UC517990  Lasthenia californica subsp. californica Lewis S. Rose 1933-4-30 33128 San Mateo Redwood City Comment
  CAS-BOT-BC324424  Lasthenia californica subsp. macrantha H. L. Mason 1921-6-1 s.n. San Mateo Pebble Beach near Pescadero Comment
  CAS-BOT-BC324428  Lasthenia californica subsp. macrantha A. G. Vestal 1937-6-15 s.n. San Mateo Pebble Beach near Pescadero Comment
  UC1598598  Lasthenia glabrata subsp. glabrata A. D. E. Elmer 1903-5-1 4426 San Mateo Millbrae Comment
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Sep 9 2011
  JEPS22663  Lathyrus littoralis Irene Brown 1959-5-15 151 San Mateo w of Highway 1 (about 50 feet from Ocean, Sharp Park); Sharp Park 7 Comment
  UCD106475  Lathyrus vestitus A. A. Heller 1907-4-20 8454 San Mateo San Bruno Hills. Comment
  SEINET956172  Lathyrus vestitus subsp. puberulus A. D. E. Elmer 1903-1 4745 San Mateo San Mateo Comment
  POM319934  Lathyrus vestitus subsp. vestitus Barbara Shervanick 1973-4-1 818 San Mateo San Bruno Mt. at first summit at end of Crocker Rd. 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
  UC85315  Lathyrus vestitus var. vestitus C. F. Baker 1902-1-15 240 San Mateo w side Kings Mountain Comment
  CAS-BOT-BC323154  Layia chrysanthemoides David D. Keck 1932-5-6 1487 San Mateo Near Skyline Boulevard, west of Millbrae Highlands. Comment
  CAS-BOT-BC323176  Layia chrysanthemoides J McMurphy 1909-6-13 s.n. San Mateo San Bruno HIlls Comment
  UC89164  Layia chrysanthemoides K. Brandegee 1885-5-1 San Mateo Millbrae Comment
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Sep 9 2011
  CAS-BOT-BC323155  Layia chrysanthemoides David D. Keck 1932-5-6 1488 San Mateo 4 miles W of Burlingame on Skyline Boulevard. Comment
  UC30646  Layia gaillardioides J. Burtt Davy Apr 21 1893-Apr 23 1893 1161 San Mateo Pilarcitos Lake and Canyon Comment
  CAS-BOT-BC321071  Layia gaillardioides H. L. Mason 1921-7-14 s.n. San Mateo La Honda-Pescadero Road, near Pescadero Creek Comment
  CAS-BOT-BC321099  Layia gaillardioides David D. Keck 1932-5-6 1483 San Mateo Hills W of Millbrae Highlands, just E of Skyline Blvd.. Comment
  CAS-BOT-BC327459  Layia hieracioides David D. Keck; Wm. M. Hiesey 1940-6-1 s.n. [likely 5166 ] San Mateo Skyline Boulevard opposite north end of Lake San Andreas 137 Comment
  CAS-BOT-BC327468  Layia hieracioides John H. Thomas 1950-5-14 1871 San Mateo Ben Lomond Sand Hills, along Quail Hollow Road 152 Comment
  JEPS22902  Layia hieracioides John H. Thomas 1958-5-10 7158 San Mateo 5 mi sw Palo Alto; Searsville Lake 152 Comment
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Jul 14 2009
  JEPS27361  Layia hieracioides Rimo Bacigalupi with Jim Roof and L. R. Heckard 1961-4-24 7621 San Mateo lateral ridge below and se of end of paved ridge-top road just e KRON television tower and station (Guadalupe Valley side of mt.); San Bruno Mountain 304 Comment
  SD39841  Layia hieracioides Edith A. Purer 1933-7-27 5397 San Mateo Two miles south of Pigeon Point Comment
  UC89183  Layia hieracioides Alice Eastwood 1899-5-2 San Mateo near Pt. San Pedro Comment
  UCR70738  Layia hieracioides David D. Keck 1932-5-11 1760 San Mateo Santa Cruz Mtns, Above Searsville Lake, on La Honda Road, E slope of mountains. 250 Comment
  CAS-BOT-BC327464  Layia hieracioides John Thomas Howell 1944-6-11 19594 San Mateo 1.5 miles N of Felton Comment
  CAS-BOT-BC327486  Layia hieracioides George Oberlander 1949-9-25 368 San Mateo San Francisco Watershed Reserve. Sawyer Ridge. Comment
  CAS-BOT-BC327503  Layia hieracioides Peter Rubtzoff; Roman Gankin 1975-5-21 7963 San Mateo San Bruno Mountains. Saddle area on N side of Guadalupe Canyon Parkway W of Radio Road junction. Open area just N of Guadalupe Canyon Parkway. Comment
  CAS-BOT-BC327526  Layia hieracioides C. G. Pringle 1882-7-11 s.n. San Mateo Aptos Comment
  RSA51286  Layia hieracioides Peter H. Raven 1950-4-6 1794 San Mateo Summit Ridge; San Bruno Mts. Comment
  UCSC007762  Layia hieracioides Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH995  Layia platyglossa John H. Thomas 1973-4-14 16565 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC382078  Layia platyglossa James I. McMurphy 1909-5-26 s.n. San Mateo Above La Honda Comment
  RSA10278  Layia platyglossa subsp. platyglossa H. A. Barker 1927-5-14 659 San Mateo North of Half Moon Bay. Comment
  CAS-BOT-BC534547  Lemna gibba A. D. E. Elmer 1903-7-1 4765 San Mateo San Pedro Comment
  CDA987  Leontodon taraxacoides D. G. Kelch, B. G. Baldwin, Sue Bainbridge, Abigail Moore 2005-6-21 5 .37 San Mateo S.F. Water District land, near Spring Valley. NE corner Pilarcitos Lake. Comment
  CAS-BOT-BC221535  Lepechinia calycina Fred Hemphill 1973-4-8 661 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CDA34569  Lepechinia calycina M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 875 San Mateo Pacifica: San Pedro Valley County Park, along Brooks Creek Trail. 148 Comment
  JROH2785  Lepechinia calycina John H. Thomas 1955-5-6 5015 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2792  Lepechinia calycina John H. Thomas 1973-5-5 16769 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM202471  Lepechinia calycina L. S. Rose 1933-6-9 33225 San Mateo Belmont Comment
  CAS-BOT-BC89135  Lepidium didymum H. L. Mason 1921-5-29 s.n. San Mateo Pebble Beach near Pescadero. Comment
  RSA18464  Lepidium didymum C. B. Wolf 1927-6-29 544 San Mateo South of Pebble Beach near Pescadero Comment
  CDA19903  Lepidium latifolium D. Pendleton 2002-5-28 PDR P 120142 San Mateo San Francisco Bay Area; RR & Cedar St across the tracks from roller rink. 0 Comment
  SEINET12006186  Lepidium nitidum Unknown 1932-1 8943 San Mateo Los Francos Woods Road Comment
  JROH1558  Lepidium strictum John H. Thomas 1968-3-17 14186 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC12946  Lepidium strictum John H. Thomas 1966-4-12 11556 San Mateo East Palo Alto. Along sidewalks near Woodland Avenue and University Avenue. Comment
  CAS-BOT-BC226597  Leptosiphon ambiguus James McMurphy 1906-5-8 s.n. San Mateo Head of Crystal Springs Lakes Comment
  CAS-BOT-BC226607  Leptosiphon ambiguus L. R. A. 1902-5-4 2415 San Mateo Woodside Comment
  CAS-BOT-BC226611  Leptosiphon ambiguus A. D. E. Elmer 1903-4-1 4913 San Mateo Crystal Springs Lake Comment
  POM65146  Leptosiphon androsaceus L. R. Abrams 1901-05 1553 San Mateo Searsville Comment
  RSA6298  Leptosiphon androsaceus D. D. Keck 1932-5-6 1481 San Mateo Open hillside just west of Millbrae Highlands. 50 Comment
  UCD14333  Leptosiphon androsaceus Marcy Dickerson 1983-4-23 110 San Mateo San Mateo Co., Jasper Ridge, Sanford Biological Preserve, within 1 mile of Westridge Road Entrance; Comment
  CAS-BOT-BC226624  Leptosiphon grandiflorus W. R. Dudley 1896-7-30 s.n. San Mateo Summit of hill just beyond La Honda Comment
  POM65847  Leptosiphon liniflorus C. F. Baker 1902-5-4 760 San Mateo Woodside. Comment
  JROH3187  Leptosiphon parviflorus Daniel Cohen 1953-4-11 26 San Mateo Jasper Ridge Biological Preserve, Stanford University; near top of Jasper Ridge Comment
  SJSU15218  Leptosiphon rosaceus Toni Corelli 2010-5-10 626 San Mateo Pillar Point Air Force Station 28 Comment
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Jan 23 2015
  CDA5157  Leptospermum laevigatum T. C. Fuller 1969-5-15 18476 San Mateo Hillslope opposite the welfare farm, Highway 92 to San Mateo, east limits of Half Moon Bay. 0 Comment
  CAS-BOT-BC324054  Lessingia arachnoidea John Thomas Howell 1927-5-10 2388 San Mateo Crystal Springs Lake 213 Comment
  CAS-BOT-BC324058  Lessingia arachnoidea W. R. Dudley 1909-10-10 s.n. San Mateo East side of Crystal Springs Reservoir Comment
  CAS-BOT-BC324069  Lessingia arachnoidea J. H. Thomas 1958-9-15 7473 San Mateo 0.4 miles north of dam on San Mateo Creek along Skyline Blvd. 91 Comment
  OBI15796  Lessingia arachnoidea Lewis S. Rose 1964-9-9 64075 San Mateo Crystal Srpings Lakes; W of San Mateo 244 Comment
  UC1287456  Lessingia arachnoidea Willard Spence 1960-7-2 552 San Mateo Rt. 5 1 mi n Dam; Crystal Springs Lake Comment
  SJSU15428  Lessingia germanorum Toni Corelli 2011-9-14 720 a San Mateo Northeast of Hillside Park, above houses 107 Comment
  JROH1013  Lessingia glandulifera var. glandulifera John H. Thomas 1975-5-26 17902 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC23932  Lessingia hololeuca Mary Katherine Wicksten 1971-8-20 205 San Mateo Huddart Park below Redwood Shelter. Comment
  JROH1030  Lessingia hololeuca Duncan M. Porter 1960-10-12 724 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
  POM57787  Lessingia hololeuca L. R. Abrams 1900-10 1004 San Mateo Porlota (?) Comment
  CAS-BOT-BC324186  Lessingia hololeuca Josephine D. Randall 1907-7-15 s.n. San Mateo Near woodside, Santa Cruz Peninsula Comment
  JROH1037  Leucanthemum maximum Toni Corelli 2009-7-22 353 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek bed below Dennis Martin marker 71 Comment
  JEPS71207  Leymus X vancouverensis William S. Cooper 1919-7-22 207 San Mateo Ano Nuevo Pt. Comment
  UC773784  Leymus X vancouverensis Frank W. Gould 1948-6-19 4716 San Mateo about 2 mi s Pescadero (sand dunes at high tide level) Comment
  CAS-BOT-BC273564  Leymus californicus A. D. E. Elmer 1903-6-1 4700 San Mateo Toward Crystal Springs Lake from San Mateo Comment
  CAS-BOT-BC283695  Leymus condensatus Elizabeth McClintock; Paul Reeberg 1989-5-24 s.n. San Mateo San Bruno Mountains. At Shearwater, near Bayshore Blvd 7 Comment
  JEPS71199  Leymus triticoides William S. Cooper 1919-7-22 214 San Mateo Ano Nuevo Pt. Comment
  JROH2987  Ligustrum vulgare John Rawlings 2012-5-23 1116 San Mateo Jasper Ridge Biological Preserve, Stanford University; at the end of a spur off Trail 12 nearly opposite the intersection with Trail 10. The spur ends in a large patch of Scirpus microcarpus at the edge of Corte Madera Creek. 109 Comment
  JROH5831  Ligustrum vulgare Ann Lambrecht, Alice Cummings 2013-6-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; at the end of a spur off Trail 12 nearly opposite the intersection with Trail 10. The spur ends in a large patch of Scirpus microcarpus at the edge of Corte Madera Creek. 109 Comment
  SEINET7876343 Image available Ligustrum vulgare A. T. Whittemore 2001-1 01 -020 San Mateo Garden of 418 Hillway Dr., Redwood City 98 Comment
  CAS-BOT-BC451674  Lilaea scilloides Alice Eastwood 1922-4-24 11196 San Mateo Between Princeton & Morman Comment
  SEINET12182118  Limnanthes douglasii Unknown 1932-1 9103 San Mateo Roadside between Spring Valley Lake and Sky Line Drive Comment
  UCD169374  Limnanthes macounii T. W. Henrich 2004-4-21 s.n. San Mateo Moss Beach. Adjacent to Hwy 1 and immediately east of Half Moon Bay Airport, on Cabrillo Ranch property. Comment
  JROH4067  Limosella acaulis Ann Lambrecht, Carol Zabel 2004-6-23 10 San Mateo Jasper Ridge Biological Preserve, Stanford University. At landing below Searsville Lab Comment
  JROH5866  Limosella acaulis Herb Dengler 1982-8-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC75208  Linanthus ambiguus C. F. Baker 1902-5-4 753 San Mateo Woodside Comment
  UC133890  Linanthus liniflorus C. F. Baker 1902-5-4 760 San Mateo Woodside Comment
  UC517491  Linanthus liniflorus John Thomas Howell 1933-5-26 11344 San Mateo Crystal Springs Lake Comment
  JEPS113041  Linanthus liniflorus subsp. pharnaceoides Dean W. Taylor 1994-5-10 14263 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
  UCSC005529  Linanthus parviflorus Randall Morgan 1994-4-2 2173 San Mateo Jasper Ridge Comment
  HSC24042  Linum bienne Mary Katherine Wicksten 1971-6-24 114 San Mateo Huddart Park, near entrance Comment
  CAS-BOT-BC36026  Lithocarpus densiflorus var. densiflorus Ira L. Wiggins 1925-4-1 1661 San Mateo On Kings Mountain Road one mile above Woodise just above the first Pseudotsuga menziesii on the right edge of the road Comment
  CAS-BOT-BC36065  Lithocarpus densiflorus var. densiflorus W. R. Dudley 1895-3-26 s.n. San Mateo La Honda, beyond Post Office and near Mill on Alpine road Comment
  JROH3886  Lithophragma affine John H. Thomas 1970-4-4 15543 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC430775  Lithophragma affine W. R. Dudley 1894-4-6 s.n. San Mateo Road to Black Mt. along Corte de Madera Cr. Comment
  UCD102692  Lithophragma affine E. Jacqueline Garcia 1986-4-19 s.n. San Mateo San Bruno Mountains, 0.25 mile from Summit Loop trailhead on Guadeloupe Canyon Road. Comment
  CAS-BOT-BC436226  Lithophragma heterophyllum Margaret A. Barry 1937-5-15 92 San Mateo on Coal Mine Ridge Comment
  UC402461  Lithophragma heterophyllum Milo S. Baker May 1904 San Mateo near Burlingame; near Burlingame Comment
  UC570868  Lithophragma heterophyllum Herbert L. Mason 1927-4-23 3684 San Mateo along road between La Honda and Pescadero Creek; road between La Honda and Pescadero Creek Comment
  CAS-BOT-BC60213  Lobularia maritima Phillip Wheeler; Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountain. Colma Canyon along road. Comment
  CAS-BOT-BC60214  Lobularia maritima Elizabeth McClintock 1967-9-24 s.n. San Mateo San Bruno Mountain. Crocker Avenue. Comment
  JROH740  Logfia gallica John Hunter Thomas 1981-5-8 20552 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC173829  Lolium multiflorum Peter Rubtzoff 1976-6-13 8629 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. In area of uppermost part of East Fork Colma Creek, at the northwest corner of Fog Forest. Comment
  UC21264  Lomatium caruifolium var. caruifolium Alice Eastwood April 1896 San Mateo Crystal Springs Comment
  SJSU10974  Lomatium dasycarpum G. I. Tourtlotte 1968-3-16 San Mateo by Sawyer Ridge near Crystal Springs Reservoir Comment
  JEPS17145  Lomatium dasycarpum subsp. dasycarpum Elena R. Goodwin May 1914 5739 San Mateo Redwood City Comment
  JROH269  Lomatium dasycarpum subsp. dasycarpum John Hunter Thomas 1981-4-30 20514 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH271  Lomatium dasycarpum subsp. dasycarpum John Hunter Thomas 1988-5-16 24461 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM132686  Lomatium dasycarpum subsp. dasycarpum A. D. E. Elmer 1903-04 s.n. San Mateo Crystal Springs Lake. Comment
  POM132877  Lomatium vaginatum A. D. E. Elmer 1903-04 4794 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC240582  Lonicera hispidula Ned Cahill 1974-5-13 264 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC240596  Lonicera hispidula A. D. E. Elmer 1903-7-1 4596 San Mateo Lake San Andreas Comment
  CAS-BOT-BC240606  Lonicera hispidula Carl B. Wolf 1930-11-5 1805 San Mateo 2 miles west of La Honda, Santa Cruz Mtns. 304 Comment
  CAS-BOT-BC384624  Lonicera hispidula Mary Wicksten 1969-6-24 sn. San Mateo Miwok area - Huddart Park Comment
  CHSC56976  Lonicera hispidula Steven Triano 1988-5-24 183 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
  JROH5861  Lonicera hispidula Carol Zabel, Irene Brown 2003-7-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; thirty yards southeast of old brick well and a few yards uphill of Trail 2 extension near a large fallen oak and mature hawthorn 113 Comment
  HSC23785  Lonicera hispidula var. vacillans Mary Katherine Wicksten 1971-6-18 37 San Mateo Huddart Park, near lower parking lot. 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
  POM46744  Lonicera hispidula var. vacillans Edward L. Greene 1901-9-2 1533 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC243962  Lonicera involucrata var. ledebourii John H. Thomas 1964-6-19 10429 San Mateo 0.9 miles south of Tunitas Creek near Coast Highway 60 Comment
  UC306767  Lonicera involucrata var. ledebourii A. D. E. Elmer June, 1903 4272 San Mateo Lake San Andreas Comment
  UC729847  Lonicera involucrata var. ledebourii Carl B. Wolf 1929-5-25 3733 San Mateo 2 mi from Pescadero; Alpine Creek Comment
  JROH2046  Lotus corniculatus John Hunter Thomas 1982-5-18 20937 San Mateo Jasper Ridge Biological Preserve, Stanford University; old racing oval Comment
  POM16716  Lotus formosissimus A. D. E. Elmer 1903-04 4860 San Mateo Lake San Andreas Comment
  RSA18332  Lotus formosissimus Carl B. Wolf 1929-5-10 3703 San Mateo Coast at Pigeon Pt. South of Pescadero. Comment
  UC80969  Lotus formosissimus C. F. Baker 1902-5-1 689 San Mateo Crystal Springs Lake Comment
  UC81142  Lotus formosissimus Katharine Brandegee Jun 1905 San Mateo Moss Beach near Halfmoon Bay; Moss Beach Comment
  UC80707  Lotus humistratus C. F. Baker 1902-5-4 750 San Mateo Woodside Comment
  SEINET12151372  Lotus subpinnatus Unknown 1932-1 9137 San Mateo Sky Line Drive Comment
  POM276693  Lotus unifoliolatus Lyman Benson 1930-5-26 2142 San Mateo Stanford University. Lake Searsville. 152 Comment
  RSA169309  Lotus unifoliolatus L. S. Rose 1964-9-5 64071 San Mateo Emerald Lake, W of Redwood City. 244 Comment
  HSC23870  Lotus unifoliolatus var. unifoliolatus Mary Katherine Wicksten 1971-6-15 24 San Mateo Huddart Park Rd. bank near office Comment
  UC1594176  Lotus wrangelianus Jerry Powell 1991-5-14 1602 San Mateo Edgewood Park 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
  JROH5563  Lupinus affinis John Rawlings 2013-4-2 1186 San Mateo Jasper Ridge Biological Preserve, Stanford University; above upper end of Trail 11 137 Comment
  POM77733  Lupinus affinis C. P. Smith 1921-4-9 3292 San Mateo San Mateo Canyon 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-BC195790  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-21 48461 San Mateo Highway 5 - junction San Bruno Road 3, 0.8 miles south Comment
  CAS-BOT-BC196131  Lupinus albifrons var. collinus Alice Eastwood 1914-3-12 3759 San Mateo San Bruno Hills Comment
  RSA800198  Lupinus albifrons var. collinus Robert F. Thorne, Percy C. Everett 1963-6-9 32209 San Mateo On top of San Bruno Mountain, near TV tower. 335 Comment
  SBBG25081  Lupinus arboreus D. Myrick 1966-6-11 1447 San Mateo near Pescadero along Hwy 1 S of San Francisco Comment
  SD39024  Lupinus arboreus Edith A. Purer 1932-7-18 4007 San Mateo Half Moon Bay, sand dunes Comment
  UC511362  Lupinus arboreus Lyman Benson 1930-6-14 2150 San Mateo San Gregorio; San Gregorio ocean bluffs 30 Comment
  SEINET10451219  Lupinus arboreus Harold W. Rickett 1928-7-10 Rickett s.n. San Mateo La Honda, CA. Comment
  SEINET10488469  Lupinus arboreus Mcclintock 1963-6-23 MCCLINTOCK s.n. San Mateo San bruno mountain. Top of mountain, near radio station Comment
  RSA705042  Lupinus arboreus var. arboreus E. A. Purer 1933-7-27 5371 San Mateo Two miles south of Pigeon Point Comment
  JEPS101819  Lupinus arboreus var. eximius Dean W. Taylor 2000-4-25 17437 San Mateo along dirt road 1 mi W of North Peak, Montara Mountain 411 Comment
  HSC43288  Lupinus bicolor Dunn 1946-5-16 2596 San Mateo 1 block N of Sloat Blvd. at Vale Ave. Comment
  SEINET12154528  Lupinus densiflorus var. aureus G. A. McCallum 1933-1 s.n. San Mateo Los Franus ranch Comment
  RSA159408  Lupinus densiflorus var. densiflorus John H. Thomas 1961-5-14 9377 San Mateo Just north of dam on San Mateo Creek. 122 Comment
  SEINET10490757  Lupinus formosus var. formosus Charles Piper Smith 1922-6-10 Smith 3546 San Mateo South san francisco-mountain road. Comment
  RSA51345  Lupinus latifolius Peter H. Raven 1950-4-30 1985 San Mateo Montara Mountains 122 Comment
  RSA91267  Lupinus latifolius subsp. latifolius D. D. Keck 1932-5-11 1770 San Mateo Three miles west of Kings Mountain, on road to Tunitas, west slope of Santa Cruz Mountains. 450 Comment
  UC15897  Lupinus latifolius var. latifolius Alice Eastwood May 1896 San Mateo Crystal Springs Comment
  SD27830  Lupinus menziesii Carl B. Wolf 1929-5-17 3712 San Mateo Alpine Road east of Skyline Blvd. 305 Comment
  JROH2128  Lupinus nanus John H. Thomas 1975-4-5 17716 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC398660  Lupinus nanus L. R. Abrams 1914-4-20 5128 San Mateo junction of Los Trancos and San Francisquito Creeks; jct of Los Trancos and San Francisquito Creeks Comment
Read comments
Sep 30 2011
  SJSU10761  Lupinus nanus H. L. Elliot 1958-5-31 129 San Mateo Jasper Ridge 7 mi NW of Stanford Univ Comment
  SEINET10490142  Lupinus nanus subsp. latifolius William R. Dudley 1894-4-11 Dudley UMO 67693 San Mateo Near menlo park reservoir. Comment
  SEINET10490156  Lupinus nanus subsp. latifolius Charles Piper Smith 1948-4-23 Smith 48137 San Mateo Hwy 1, moss peach p.o. Comment
  SEINET11072117 Image available Lupinus nanus subsp. latifolius Carl Mankinen 1967-4-5 San Mateo State Highway 1, 1.8 miles northwest of Gazos Creek Comment
  RSA413810  Lupinus nanus subsp. nanus D. D. Keck 1932-5-11 1769 San Mateo Two miles north of San Gregorio. 15 Comment
  POM226876  Lupinus polycarpus L. R. Abrams 5094 San Mateo Menlo Heights Comment
  UCD23307  Lupinus polyphyllus Alan T. Whittemore 1976-5-29 114 San Mateo San Francisco Fish and Game Refuge. East side of Lower Crystal Springs Lake, on Sawyer's Camp Road. 94 Comment
  SD60214  Lupinus vallicola subsp. apricus L. R. Abrams 1926-4-19 San Mateo Junction of Los Trancos & San Francisquito Creek Comment
  RSA3803  Lupinus vallicola subsp. apricus L. R. Abrams 1914-4-20 5128 San Mateo At the confluence of Los Troncos and San Francisquito creeks. Comment
  JEPS34467  Lupinus variicolor L. Heckard and R. Bacigalupi 1963-7-2 1356 San Mateo trail to Montara Peak above old county road Comment
  RSA162483  Lupinus variicolor E. K. Balls 1963-5-22 12065 San Mateo 4.1 miles N of Moss Beach, along Hwy 1. 61 Comment
  RSA176707  Lupinus variicolor John H. Thomas 1964-6-28 10437 San Mateo Along highway 1 near Pedro Point. Comment
  SEINET10489094  Lupinus variicolor Wheeler 1965-6-13 WHEELER UMO 104126 San Mateo San bruno mtn. Colma canyon. Comment
  SEINET10969935  Lupinus variicolor Smith 1947-4-25 Smith 47180 San Mateo Skyline hwy 5, 1.4 mi s of old hwy 1 jct. Comment
  JROH4532  Luzula comosa var. comosa John Hunter Thomas 1983-2-21 21282 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC441368  Luzula subsessilis John H. Thomas 1958-3-19 7060 San Mateo East facing slope of San Bruno Mountain, just N of South San Francisco 91 Comment
  UCR279850  Luzula subsessilis Peter Rubtzoff 1976-3-28 8450 San Mateo San Francisco Bay Region, San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction; East Fork Colma Creek Canyon 220 Comment
  CAS-BOT-BC441364  Luzula subsessilis Elizabeth McClintock; Arthur Menzies 1963-2-16 s.n. San Mateo San Bruno Mountain: Upper slopes of mountain, below radio station Comment
  UC1099770  Luzula subsessilis Herbert L. Mason 1927-4-23 3686 San Mateo along road from La Honda to Pescadero Creek Comment
  JROH4166  Lycopersicon esculentum Toni Corelli 2002-10-11 249 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road H, below road inside JRBP that is parallel to Sand Hill Road 121 Comment
  JEPS42812  Lysichiton americanus Lucille Roush 1928-3-11 San Mateo Butano Creek Comment
Read comments
Sep 6 2011
  UCSB7479  Lysichiton americanus Horton, Sam 1969-3-28 San Mateo Canyon Road, 1.4 miles east of Cloverdale Road, Butano 152 Comment
  JROH3365  Lysimachia arvensis John H. Thomas 1975-4-18 17787 b San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2945  Lythrum hyssopifolia John H. Thomas 1974-10-26 17630 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR248337  Lythrum hyssopifolia Peter Rubtzoff 1987-8-26 9837 San Mateo San Bruno Mountain, 'Saddle' area non north side of Guadalupe Canyon. Parkway west of Radio Road junction; northwestern part of the area along old Guadalupe Road 213 Comment
  JROH2953  Lythrum hyssopifolia John Hunter Thomas 1983-5-23 22248 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dry road and low-flow crossing on shack side Comment
  RSA0011330  Lythrum hyssopifolia I. L. Wiggins 1949-7-2 12195 San Mateo Pescadero Beach. Comment
  JEPS79507 Image available Lythrum salicaria Edward Lee 1978-8-24 San Mateo Princeton Marsh Comment
  RSA133887  Madia capitata John H. Thomas 1959-8-16 8064 San Mateo About two miles southwest of Pescadero. 61 Comment
  JEPS121503  Madia elegans Adam C. Schneider with C. Matt Guilliams and Will Freyman 2013-6-24 299 San Mateo Crystal Springs Reservoir 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-BC343917  Madia elegans H. M. Hall 1930-8-17 12882 San Mateo East side of Crystal Spring Lake, on grade going to San Mateo Comment
  POM362144  Madia elegans subsp. elegans E. A. Purer 1933-8-13 5421 San Mateo Santa Clara Valley, near Belmont Comment
  RSA11149  Madia elegans subsp. elegans C. B. Wolf 1929-5-17 3713 San Mateo 1 mile W of Skyline Drive on Alpine Road. Comment
  JROH1039  Madia exigua John H. Thomas 1958-5-10 7141 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-BC344486  Madia exigua H. A. Dutton 1900-5-6 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside Comment
  CAS-BOT-BC344492  Madia exigua David D. Keck 1932-5-11 1761 San Mateo Above Searsville Lake, La Honda road, east slope of Santa Cruz Mountains Comment
  CAS-BOT-BC343332  Madia gracilis David D. Keck 1932-5-25 1780 San Mateo Hills two miles west of Belmont Comment
  JEPS112942  Madia gracilis Dean W. Taylor 1994-5-10 14275 San Mateo San Mateo Creek drainage; along Crystal Springs Road 0.3 mi East of junction of Tartan Trail 67 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
  JROH1095  Madia gracilis John Hunter Thomas 1992-5-5 25215 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam and vicinity Comment
  SEINET5782363 Image available Madia madioides L. S. Rose 1941-7-2 41287 San Mateo Kings Mountain Comment
  CAS-BOT-BC345110  Madia sativa J. H. Thomas 1963-7-19 10179 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC345136  Madia sativa LeRoy Abrams 1901-9-1 2227 San Mateo Menlo Park Comment
  CAS-BOT-BC353466  Madia sativa Peter Rubtzoff 1975-9-11 8378 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  JEPS30896  Madia sativa J. H. Thomas 1959-8-16 8064 San Mateo about 2 mi sw Pescadero 60 Comment
  JROH1112  Madia sativa John Hunter Thomas 1983-7-7 22828 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC345117  Madia sativa David D. Keck 1932-8-11 1745 San Mateo Skyline Blvd., about 1 mi. S. of junction with Alpine Creek road, Santa Cruz Mts., Santa Clara--San Mateo Co. line 640 Comment
  CAS-BOT-BC345129  Madia sativa David D. Keck 1934-7-7 2941 San Mateo South of the mouth of Tunitas Creek Comment
  POM284997  Madia sativa Lyman Benson 1934-7-4 6103 San Mateo Moss Beach; Pacific Ocean watershed 15 Comment
  JROH4692  Maianthemum racemosum D. D. Davis 1903-4-19 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Base of Searsville Ridge Comment
  CAS-BOT-BC512106  Maianthemum racemosum subsp. amplexicaule George Oberlander 1950-3-18 583 San Mateo Pilarcitos Canyon; San Francisco Watershed Reserve Comment
  CHSC27884  Maianthemum stellatum Susan Perkins 1978-3-24 5 San Mateo Hwy 84 (La Honda Rd), 1.5 road mi ne of Skylonda, 1.5 road mi s jct Hwy 84 and Portola Rd. Ca. 2 mi s of Woodside. 292 Comment
  JROH4705  Maianthemum stellatum John H. Thomas 1970-5-16 15629 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4712  Maianthemum stellatum John Hunter Thomas 1978-7-8 19256 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC514155  Maianthemum stellatum R. Bacegalupi 1922-3-1 s.n. San Mateo Pescadero Creek Comment
  RSA40108  Maianthemum stellatum Lewis S. Rose 1948-3-31 48035 San Mateo Skyline Blvd., west of Tanforan 91 Comment
  SD27772  Maianthemum stellatum Carl B. Wolf 1927-4-3 250 San Mateo 1 mile above La Honda. 244 Comment
  UCSB17388  Maianthemum stellatum Schulte, John 1963-4-9 San Mateo Jasper Ridge, 3 miles SW of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  JROH2962  Malacothamnus fasciculatus D. E. Breedlove 1971-5-31 19352 San Mateo Jasper Ridge Biological Preserve, Stanford University. This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  CAS-BOT-BC204103  Malacothamnus hallii Carl B. Wolf 1929-6-8 3746 San Mateo 2.5 mi. w. of Los Altos on the road to La Honda Comment
  RSA433884  Malvella leprosa E. A. Purer 1933-8-13 5424 San Mateo Santa Clara Valley, near Belmont. Comment
  JROH1900  Marah fabacea John H. Thomas 1961-4-29 9195 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  RSA187384  Marah fabacea John H. Thomas 1964-6-19 10420 San Mateo Ano Nuevo Island, 1/2 mile off shore and 20 miles NW of Santa Cruz 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
  SD39366  Marah oregana Edith A. Purer 1933-4-25 3656 San Mateo King's Mountain Road Comment
  RSA441244  Marah oregana K. M. Stocking 1947-5-15 40 San Mateo E of Pescadero 1.5 miles. 46 Comment
  RSA92812  Marah oregana P. H. Raven 1950-4-16 1786 San Mateo Colma Canyon, San Bruno Mts. 122 Comment
  JROH618  Matricaria discoidea John H. Thomas 1975-4-19 17793 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH622  Matricaria discoidea John Hunter Thomas 1981-5-8 20566 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5901  Matricaria discoidea M. Ray 1982-4-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Close to Searsville Lab Comment
  UCSB17213  Matricaria discoidea Schulte, John 1963-4-28 San Mateo On top of Jasper Ridge, 3 miles southwest of Stanford campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  POM149359  Meconella californica A. D. E. Elmer 1903-04 4499 San Mateo San Mateo, toward Crystal Springs Comment
  JROH2171  Medicago polymorpha John Hunter Thomas 1983-5-23 22243 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2174  Medicago polymorpha John Hunter Thomas 1988-5-5 24451 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA788950  Medicago polymorpha Peter Rubtzoff 1977-4-16 8952 San Mateo San Bruno Mountains. Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction, along W side of East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC269476  Melica californica W. R. Dudley 1906-5-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Near San Mateo Comment
  JEPS48479  Melica imperfecta James G. Daly 1934-1 310 San Mateo upper Alpine Creek road (San Gregorio Creek watershed); San Gregorio Creek Comment
  JROH5303  Melica imperfecta John Hunter Thomas 1978-5-16 19220 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC264243  Melica torreyana Elizabeth McClintock 1965-3-14 s.n. San Mateo Power Line Ridge, San Bruno Mountain Comment
  CAS-BOT-BC264255  Melica torreyana George Oberlander 1949-5-21 185 San Mateo South boundary, San Francisco Watershed Reserve Comment
  JROH2185  Melilotus indicus John H. Thomas 1971-5-30 15952 San Mateo Jasper Ridge Biological Preserve, Stanford University; at dam Comment
  JROH2192  Melilotus indicus John Hunter Thomas 1982-5-18 20933 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM284510  Melissa officinalis Lyman Benson 1937-8-15 8489 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains. 244 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
  JROH2815  Mentha pulegium John Hunter Thomas 1979-9-9 19711 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  RSA135751  Mercurialis annua John H. Thomas 1955-11-9 5503 San Mateo Fallow Brussel Sprout field near Sanchez Adobe House, San Pedro Valley, about 8.5 miles south of San Francisco - San Mateo County line, and 0.9 mile inland from the ocean. Comment
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Aug 8 2010
  CDA4875  Mercurialis annua T. C. Fuller 1958-10-16 1444 -58 San Mateo Just east of Sanchez Adobe House, south side of Linda Mar Boulevard, Pedro Valley. 0 Comment
  CAS-BOT-BC438138  Mesembryanthemum nodiflorum T. Winfield 1973-10-10 1222 San Mateo San Francisco Bay: Redwood City Comment
  CAS-BOT-BC428904  Micranthes californica Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain. At Devil's Arroyo. Comment
  CAS-BOT-BC428905  Micranthes californica Elizabeth McClintock 1965-3-21 s.n. San Mateo San Bruno Mountain. 1/4 mi. e. of Brisbane power lines Comment
  JROH3908  Micranthes californica Brenda Butner and Toni Corelli 1990-3-30 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; in an open area along Trail 2 on embankment above San Francisquito Creek Comment
  CAS-BOT-BC348721  Microseris bigelovii John H. Thomas 1963-5-20 10146 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  OBI15616  Microseris douglasii Lewis S. Rose 1966-5-2 66037 A San Mateo Emeral Lake, W of Redwood City 91 Comment
  CAS-BOT-BC349017  Microseris douglasii subsp. douglasii James McMurphy 1906-5-8 s.n. San Mateo Head of Crystal Springs Lakes Comment
  JROH1136  Microseris douglasii subsp. douglasii John H. Thomas 1955-5-6 4993 San Mateo Jasper Ridge Biological Preserve, Stanford University; open serpentine area on top of ridge and adjacent grassy slopes Comment
  RSA184978  Microseris douglasii subsp. douglasii L. S. Rose 1966-5-2 66037 -A San Mateo Emerald Lake, west of Redwood City. 91 Comment
  POM289996  Microseris douglasii subsp. douglasii Arthur L. Cohen 1935-4-21 621 San Mateo Jasper Ridge, San Francisquito Creek. 122 Comment
  JEPS127932  Mimulus aurantiacus Adam C. Schneider 2013-5-17 184 San Mateo Crystal Springs Reservoir Comment
  HSC20677  Mimulus aurantiacus var. aurantiacus P. A. Murphy 1965-4-16 27 San Mateo Ca. 22 mi. from Half Moon Bay on the Higgins Canyon Rd. Comment
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Jul 29 2015
  RSA130341  Mimulus aurantiacus var. aurantiacus James I. McMurphy 1906-5-20 25 San Mateo Kings Mt., Santa Cruz Mt. Comment
  RSA218021  Mimulus aurantiacus var. aurantiacus Phillip Wheeler 1967-5-14 s.n. San Mateo East side of mountain, above Harold Ave., Brisbane. Grassy slope above Philip Wheeler's house. Comment
  UCSC007764  Mimulus aurantiacus var. aurantiacus Becky Hendricks, Chris Lay 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH4082  Mimulus douglasii Le Roy Abrams 1902-4-5 2293 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  JEPS85195  Mimulus guttatus Roy E. Buck, Randall A. Morgan 1984-6-17 506 San Mateo ca. 6 km sw Redwood City (in triangle of Edgewood Rd., Canada Rd., and Interstate 280, s of Edgewood Park trail underpass); San Francisco Watershed Reserve 158 Comment
  POM5132  Mimulus guttatus C. F. Baker 1902-5-4 759 San Mateo Woodside. Comment
  CAS-BOT-BC388824  Minuartia douglasii Paul Arnaud 1941-5-3 s.n. San Mateo Redwood City - Hills - Jefferson Avenue Comment
  JROH1705  Minuartia douglasii John Hunter Thomas 1982-4-28 20875 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1111631  Minuartia douglasii Lewis S. Rose 1956-5-7 56067 San Mateo Skyline Blvd. w San Mateo 182 Comment
  CAS-BOT-BC388828  Minuartia douglasii W. R. Dudley 1894-4-1 s.n. San Mateo Santa Cruz Mountain Peninsula. San Mateo Ravine Comment
  RSA107042  Minuartia douglasii L. S. Rose 1956-5-7 56067 San Mateo Skyline Blvd west of San Mateo. 183 Comment
  CAS-BOT-BC214067  Monardella villosa Phillip C. Wheeler 1921-7-30 47 San Mateo Salada Comment
  CAS-BOT-BC220663  Monardella villosa Ned Cahill 1974-4-30 236 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  UC1314253  Monardella villosa subsp. franciscana C. W. O'Brien 1966-8-14 C- 66 -48 San Mateo Lake Pilarcitos 213 Comment
  CAS-BOT-BC327794  Monolopia gracilens W. R. Dudley 1893-5-27 s.n. San Mateo By La Honda road Comment
  JROH1157  Monolopia gracilens Oz Garton 1968-4-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC349587  Monolopia major W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Mountain Peninsula. Ravine of San Mateo Creek Comment
  JEPS127796  Muilla maritima Adam C. Schneider with C. Matt Guilliams 2013-4-7 65 San Mateo Along dirt road running parallel to the overhead power transmission lines. Comment
  CAS-BOT-BC508587  Muilla maritima Lewis S. Rose 1965-3-25 s.n. San Mateo Gradalupe Road, San Bruno Mountain Comment
  SFV16938  Myosotis discolor J. N. Hogue 1980-9-1 82 .2 San Mateo Santa Cruz Mountains Heritage Grove Redwood Reserve, near Loma Mar. Comment
  CDA34567  Myosotis latifolia M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 876 San Mateo Pacifica: San Pedro Valley County Park, along Brooks Creek Trail. 148 Comment
  RSA152078  Myosotis latifolia John H. Thomas 1962-5-12 9332 San Mateo San Bruno Mountain. 244 Comment
  UCR122630  Myosotis latifolia George K. Helmkamp, E. A. Helmkamp 2001-6-2 6770 San Mateo San Francisco Bay Region, Purisima Creek Road, east of Half Moon Bay at Purisima Creek, 3.2 miles east of CA Hwy 1 244 Comment
  JROH1398  Myosotis latifolia John Hunter Thomas 1983-4-5 21326 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  HSC23339  Myosotis sylvatica L. A. Wright Jr. 1971-4-4 25 San Mateo 0.5 mi. E on Gazos Creek Rd. from junction with Cloverdale Rd., 6.5 mi. S off of Pescadero Rd., about 3 mi. E off of Hwy. 1. On N side of Gazos Creek, about 25 ft. from the creek and about 100 ft. from the road 91 Comment
  HSC3724  Myosotis sylvatica P. A. Murphy 1965-4-15 50 San Mateo In Hatch's Woods, ca. 6 mi. from Half Moon Bay Comment
  CAS-BOT-BC101771  Myrica californica John H. Thomas 1976-10-7 18394 San Mateo Along coast highway #1, 0.6 miles north of northern most road to Pigeon Pt. Lighthouse. About 4.2 miles almost due south 30 Comment
  POM265174  Myrica californica I. L. Wiggins 1929-5-10 3678 San Mateo Roadside between Pigeon Point and Pescadero. Comment
  UC1101507  Myriophyllum sibiricum Malcolm A. Nobs and S. Galen Smith 1949-8-25 1553 San Mateo Marshes at Sharp Point. Comment
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Aug 8 2011
  RSA132434  Myriophyllum spicatum John H. Thomas 1955-12-6 5513 San Mateo At the southern end of San Andreas Lake. Comment
  UCSB279  Najas guadalupensis McPherson, D. 1960-08 San Mateo Felt Lake; Stanford University foothills Comment
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1
  JROH5836  Narcissus pseudonarcissus Ann Lambrecht 2007-3-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Planted in Old Garden near Douglas Iris site off Trail 20 toward San Francisquito Creek Comment
  UCD87964  Nassella lepida R. Tofsrud 1949-6-1 s.n. San Mateo East side of Crystal Springs Lake. Comment
  CAS-BOT-BC260232  Nassella pulchra Lewis S. Rose 1956-5-7 56071 San Mateo Skyline Boulevard W of San Mateo 182 Comment
  SBBG32478  Nassella pulchra L. S. Rose 1963-4-27 63000 San Mateo Skyline Blvd, W of San Mateo 91 Comment
  CAS-BOT-BC60479  Nasturtium officinale George Oberlander 1949-5-21 146 San Mateo San Francisco Watershed Reserve. Along Pilarcitos Creek. Comment
  JROH3200  Navarretia heterodoxa John H. Thomas 1969-5-28 15088 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3207  Navarretia heterodoxa John Hunter Thomas 1986-6-9 24092 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM226867  Navarretia mellita L. R. Abrams 1914-7-1 5224 San Mateo Searsville Lake. Comment
  JROH3209  Navarretia squarrosa John H. Thomas 1973-6-10 16815 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM282334  Navarretia squarrosa Lyman Benson 1932-7-11 3929 San Mateo Stanford University, Santa Cruz Mountain range, San Francisquito Creek watershed 152 Comment
  UCD48691  Navarretia squarrosa J. Skoss 1948-7-25 46 San Mateo San Vicente Canyon near Montara, San Mateo County, California. Comment
  UCSC007750  Nemophila humifusa Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  POM65254  Nemophila menziesii var. menziesii C. F. Baker 1902-4-12 500 San Mateo La Honda. Comment
  POM289745  Nemophila menziesii var. menziesii Lyman Benson 1930-5-1 2067 San Mateo Stanford University. San Lorenzo Mt. Range. 91 Comment
  CDA29076  Nemophila parviflora D. G. Kelch 2009-6-9 9 .407 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-BC219476  Nemophila parviflora Mrs. E. C. Sutliffe 1933-5-11 s.n. San Mateo Memorial Park, near La Honda Comment
  JROH2747  Nemophila parviflora var. parviflora Toni Corelli 2010-4-21 357 San Mateo Jasper Ridge Biological Preserve, Stanford University. Upslope of Trail 1, just east of landslide area 83 Comment
  CAS-BOT-BC400066  Nuphar polysepala A. D. E. Elmer 1903-6-1 5077 San Mateo Pescadero Comment
  CAS-BOT-BC140435  Oemleria cerasiformis Walter Knight; Irja Knight 1965-4-4 1011 San Mateo Bitter Cherry Ravine Comment
  CAS-BOT-BC140438  Oemleria cerasiformis W. R. Dudley 1904-3-3 42 San Mateo Portola Valley, Santa Cruz Mts. Comment
  CAS-BOT-BC140445  Oemleria cerasiformis A. D. E. Elmer 1903-3-1 4579 San Mateo Woodside Comment
  CAS-BOT-BC140448  Oemleria cerasiformis Elizabeth McClintock 1967-4-16 s.n. San Mateo Buckeye Canyon Comment
  JROH3711  Oemleria cerasiformis John Hunter Thomas 1981-2-14 20220 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3716  Oemleria cerasiformis Carol Zabel 1989-3-5 5 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2. Comment
  SJSU8083  Oemleria cerasiformis S. H. Casey 1969-5-18 261 San Mateo 0.25 SE of San Bruno Mt summit Comment
  JROH3084  Orobanche bulbosa John Hunter Thomas 1977-6-16 18748 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS126148  Orobanche californica subsp. californica Alison Colwell with A. Sanders 2004-7-24 04 -196 San Mateo Shelter Cove, near Pacifica 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
  UC27863  Orobanche fasciculata J. Burtt Davy 1893-6-17 786 San Mateo Belmont. Comment
  JROH3086  Orobanche vallicola John Hunter Thomas 1982-9-12 21155 San Mateo Jasper Ridge Biological Preserve, Stanford University. Corte Madera Woods vicinity of Mapache Gate Comment
  RSA195661  Orthocarpus erianthus var. erianthus John H. Thomas 1967-5-2 12823 San Mateo Along Canada Road, about 1.6 miles SE of the Edgewood Rd. intersection. Woodside. Comment
  POM286519  Orthocarpus lithospermoides Arthur L. Cohen 1935-4-21 636 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  RSA402039A  Orthocarpus lithospermoides Francis W. Pennell, D. D. Keck 1940-5-15 25413 San Mateo Emerald Lake, above Redwood City. 46 Comment
  SEINET12265143  Orthocarpus lithospermoides G. A. McCallum 1933-1 s.n. San Mateo in Spring Valley Comment
  RSA176828  Osmorhiza berteroi John H. Thomas 1961-5-5 9213 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  JROH304  Osmorhiza berteroi John Hunter Thomas 1992-5-26 25354 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  JROH5644  Oxalis corniculata John Rawlings 2014-6-2 1256 San Mateo Jasper Ridge Biological Preserve, Stanford University. Caretaker's Residence 106 Comment
  OBI7876  Oxalis corniculata G. L. Parsons 1976-5-31 125 San Mateo San Mateo Comment
  SEINET5563436  Oxalis corniculata H. S. Gentry 1931-1 101 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  JROH5646  Oxalis micrantha John Rawlings 2014-4-22 1238 San Mateo Jasper Ridge Biological Preserve, Stanford University; at verge of Trail 11 in chaparral 143 Comment
  UC2049874  Oxalis oregana H. W. Johansen 1955-4-3 11 San Mateo Jones Gulch, 5 miles S of La Honda Comment
  UC311197  Oxalis oregana A. D. E. Elmer March, 1903 4532 San Mateo Portola Comment
  CAS-BOT-BC166715  Oxalis pes-caprae Peter Rubtzoff 1977-4-14 8945 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  CAS-BOT-BC318250  Packera breweri Otto Holm 1930-5-8 s.n. San Mateo Berenda Farm, near Redwood City. Comment
  UC1101573  Parapholis incurva Malcolm A. Nobs and S. Galen Smith 1949-8-26 1604 San Mateo Hwy 1, 0.6 mi n Pigeon Point Comment
  UCD88635  Parapholis incurva Beecher Crampton 1962-6-11 6512 San Mateo Rockaway Beach, a suburb of Pacifica. Comment
  JROH5347  Paspalum distichum John Hunter Thomas 1979-9-9 19732 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of dam. Comment
  RSA177004  Paspalum distichum John H. Thomas 1964-11-15 10521 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  HSC20921  Pedicularis densiflora L. S. Rose 1964-3-23 64013 San Mateo Emerald Lake, W of Redwood City 122 Comment
  JROH4112  Pedicularis densiflora John H. Thomas 1973-4-14 16571 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM286384  Pedicularis densiflora Lyman Benson 1931-2-28 2610 San Mateo Town: Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 183 Comment
  SBBG32290  Pedicularis densiflora L. S. Rose 1964-3-23 San Mateo Emerald Lake, W of Redwood City 121 Comment
  JROH4095  Pedicularis densiflora D. D. Davis 1903-2-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  JROH4105  Pedicularis densiflora John H. Thomas 1960-4-2 8562 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI78368  Pedicularis densiflora Lewis S. Rose 1961-2-23 61013 San Mateo Hills W of Belmont 122 Comment
  RSA130986  Pedicularis dudleyi W. R. Dudley 1903-5-2 s.n. San Mateo Bank near fork of road to Old Page Mill Comment
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Feb 18 2016
  LA96005  Pelargonium capitatum Jane Turner; Francis M. Ball 1962-7-7 1086 San Mateo Highway 1, ca. 10 mi. N of Sana Cruz Co. line Comment
  JROH97  Pellaea andromedifolia John H. Thomas 1974-6-30 17465 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CDA35479  Pennisetum villosum Ed Finley 1992-11-1 PDR# 1013531 San Mateo South San Francisco; north of Oyster Point Blvd., Southern Pacific Railroad right-of-way. 0 Comment
  UC197089  Pentachaeta alsinoides E. L. Greene 1886-5-9 San Mateo Belmont Comment
  JROH1161  Pentachaeta alsinoides John Hunter Thomas 1989-4-20 24639 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC330500  Pentachaeta bellidiflora Lewis S. Rose 1946-4-7 46026 San Mateo Skyline Blvd., above San Andreas Lake. 152 Comment
  RSA0008522  Pentachaeta bellidiflora L. S. Rose 1948-3-31 48032 San Mateo Skyline Blvd. above San Andreas Lake. 152 Comment
  UCSB25635  Pentagramma triangularis subsp. triangularis Masero, Ann 1967-3-21 San Mateo Butano Creek, 3.3 miles east of junction of Cloverdale Road and Canyon Road 106 Comment
  CAS-BOT-BC355896  Pericallis hybrida Phillip C. Wheeler 1965-6-20 s.n. San Mateo San Bruno Mountain. Across road from KRON*TV Comment
  JROH3243  Persicaria amphibia W. R. Dudley 1909-10-31 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Searsville Lake. Comment
  JROH3248  Persicaria amphibia John H. Thomas 1974-8-3 17496 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JROH3255  Persicaria amphibia M. Whitley 1990-5-28 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Western edge of dam. Comment
  CAS-BOT-BC419155  Persicaria maculosa Ira L. Wiggins 1980-8-29 22262 San Mateo Bed of San Francisquito Creek ca 75 m upstream from Pope Street bridge Comment
  RSA116637  Petasites palmatus W. R. Dudley 1894-3-23 s.n. San Mateo By La Honda Creek. Santa Cruz Mountain Peninsula. Comment
  SEINET5566300  Phacelia californica H. S. Gentry 1931-1 102 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  JEPS2263  Phacelia ciliata var. ciliata Inez Ray Smith 1919-3-25 San Mateo Burlingame Comment
  SEINET3158140  Phacelia distans L. S. Rose 1939-4-13 39065 San Mateo San Mateo Canyon near Crystal Springs Lake 61 Comment
  UC75119  Phacelia distans C. F. Baker 1903-4-6 1898 San Mateo San Bruno Hills Comment
  POM128434  Phacelia distans L. R. Abrams 1902-4-13 2345 San Mateo San Mateo Canyon. Comment
  UC75121  Phacelia divaricata C. F. Baker 1902-3-30 432 San Mateo stony banks and roadsides Crystal Springs Lake Comment
  HSC13719  Phacelia malvifolia L. S. Rose 1965-5-3 65057 San Mateo San Bruno Mountain, Colma Canyon 61 Comment
  UC202785  Phacelia malvifolia A. D. E. Elmer May 1903 4784 San Mateo San Bruno Hills Comment
  UC24429  Phacelia malvifolia J. Burtt Davy 1893-6-22 1139 San Mateo Pilarcitos Comment
  POM87704  Phacelia nemoralis subsp. nemoralis L. R. Abrams 1901-5-5 1575 San Mateo Bear Gulch, Santa Cruz Mountains. Comment
  SJSU15764  Phacelia ramosissima Toni Corelli 2010-5-17 630 San Mateo Pescadero State Beach and Marsh Natural Preserve, west side of Hwy. 1, along trail in dunes south of north parking lot 10 Comment
  CAS-BOT-BC258930  Phalaris aquatica Elizabeth McClintock; Paul Reeberg 1988-5-23 s.n. San Mateo San Bruno Mountains. Along Harold Avenue, Brisbane 53 Comment
  JROH5371  Phalaris aquatica John Hunter Thomas 1985-5-21 23660 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat house. Comment
  RSA118050  Phalaris aquatica J. T. Howell 1954-7-8 30009 San Mateo Skyline Blvd. above (west of) San Bruno Comment
  CAS-BOT-BC259007  Phalaris californica Walter Knight; Irja Knight 1965-6-20 s.n. San Mateo San Bruno Mountain. Crystal Cave Canyon Comment
  CAS-BOT-BC259011  Phalaris californica Ned Cahill 1974-7-14 363 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH5698  Phalaris californica John Rawlings 2015-4-7 1460 San Mateo Jasper Ridge Biological Preserve, Stanford University. In seep at edge of the serpentine on north side of Jasper Ridge. 173 Comment
  CAS-BOT-BC250643  Phalaris minor A. D. E. Elmer 1903-6-1 4427 San Mateo Crystal Springs Lake Comment
  JROH5385  Phleum pratense John Rawlings 2009-7-1 1023 San Mateo Jasper Ridge Biological Preserve, Stanford University. Bear Creek. 82 Comment
  JROH5552  Pholistoma auritum var. auritum John Rawlings, Toni Corelli 2013-4-16 1133 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2 extension northwest of the cistern 102 Comment
  CAS-BOT-BC142176  Physocarpus capitatus Paul Arnaud 1941-4-19 s.n. San Mateo Redwood City, before Hesler Farm entrance. Comment
  SEINET10841226  Pickeringia montana Mary Susan Taylor 1978-8-30 Taylor 1867 San Mateo Comment
  CAS-BOT-BC202258  Pickeringia montana var. montana 1893-5-23 s.n. San Mateo Mountain above Woodside Comment
  CDA33409  Pinus radiata D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .179 San Mateo Swanton Rd just S of Ano Nuevo above Weddell Creek. Comment
  JEPS48202  Pinus radiata W. L. Jepson 1910-8-18 4166 San Mateo Ano Nuevo Creek Comment
  JROH119  Pinus radiata John H. Thomas 1977-4-15 18531 San Mateo Jasper Ridge Biological Preserve, Stanford University 118 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
  JROH1406  Plagiobothrys bracteatus John H. Thomas 1966-4-6 11553 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC228128  Plagiobothrys chorisianus Alice Eastwood 1916-6-18 s.n. San Mateo San Bruno Hills Comment
  JEPS27368  Plagiobothrys chorisianus Rimo Bacigalupi with Jim Roof and L. Heckard 1961-4-24 7628 San Mateo just e KRON television tower and station (below and se of end of paved ridge-top road, on Guadalupe Valley side of the summit of San Bruno Mountain); San Bruno Mountain 304 Comment
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Aug 22 2013
  RSA22135  Plagiobothrys chorisianus Alice Eastwood, Howell 1938-6-26 s.n. San Mateo Pigeon Point. Comment
  CAS-BOT-BC228124  Plagiobothrys chorisianus Roxana S. Ferris 1921-4-7 2136 San Mateo San Bruno Mountain 30 Comment
  RSA128816  Plagiobothrys chorisianus Roxana S. Ferris 1920-4-23 s.n. San Mateo Santa Cruz Mountain peninsula, on abandoned road above north fork of Peters Creek 640 Comment
  CAS-BOT-BC228151  Plagiobothrys chorisianus var. chorisianus V. F. Hesse 1959-4-16 2588 San Mateo Pigeon Point 7 Comment
  SJSU15770  Plagiobothrys chorisianus var. chorisianus Toni Corelli 2010-6-1 631 San Mateo Wavecrest, west of Highway 1 in Half Moon Bay. 23 Comment
  CAS-BOT-BC228160  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1900-3-18 s.n. San Mateo The Santa Cruz Mountain Peninsula. Top of first summit E of Salada Valley Comment
  CAS-BOT-BC228172  Plagiobothrys chorisianus var. hickmanii Anne Constant 1955-5-28 192 San Mateo At Pescadero Beach 7 Comment
  JROH1421  Plagiobothrys nothofulvus John H. Thomas 1967-4-20 12707 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1424  Plagiobothrys nothofulvus John H. Thomas 1969-4-12 14879 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH1426  Plagiobothrys nothofulvus D. E. Breedlove 1971-5-31 19362 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH1435  Plagiobothrys tenellus P. R. Hickborn 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389766  Plagiobothrys tenellus R. D. Hennessey 1964-4-26 s.n. San Mateo Area where Pilarcitos Creek empties into ocean Comment
  SD39269  Plagiobothrys undulatus Edith A. Purer 1939-6-1 7928 B San Mateo Sandy soil, Ano Nuevo Point Comment
  UC24581  Plagiobothrys undulatus J. Burtt Davy Jun 21-23 1893 1136 San Mateo Pilarcitos Lake; Pilarcitos Canyon Comment
  UCD67941  Plantago coronopus A. Bennett 1977-5-1 29 San Mateo Hwy 84, 7 mi. W. of La Honda, N. side of road. Growing in level ground with sandy, wet soil. 15 Comment
  JROH3116  Plantago erecta John Hunter Thomas 1980-5-6 19929 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA144779  Plantago erecta John H. Thomas 1958-3-19 7049 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 30 Comment
  SBBG33953  Plantago erecta L. S. Rose 1966-5-2 San Mateo Emerald Lake, W of Redwood City 91 Comment
  HSC16822  Plantago erecta L. S. Rose 1965-5-3 65056 San Mateo San Bruno Mtn., N end 183 Comment
  UCD124581  Plantago lanceolata J. Doty 1969-3-26 597 San Mateo 100 yards east of the junction of State Highways 35 and 92, near summit of Coast Range. Comment
  JROH3132  Plantago major John H. Thomas 1959-8-22 8082 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176766  Plantago maritima John H. Thomas 1963-5-20 10139 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  UCD124564  Plantago subnuda G. Thomas Robbins 1953-8-29 3616 San Mateo Along State Highway 1, 1.5 - 2 miles south of San Francisco City and County line. Comment
  CAS-BOT-BC92018  Platystemon californicus A. A. Heller 1907-4-20 8445 San Mateo Near Lake Merced. Comment
  JROH4247  Plectritis ciliosa L. Roush & G. Kimber 1918-4-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC27137  Plectritis congesta subsp. nitida Amos Arthur Heller 1907-5-28 8578 San Mateo Above Crystal Springs on the Half Moon Bay road Comment
  JROH4249  Plectritis macrocera John H. Thomas 1969-4-20 14896 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC766305  Plectritis macrocera R. F. Hoover 1941-4-23 4908 San Mateo Redwood City Comment
  CAS-BOT-BC260960  Pleuropogon californicus var. californicus J. I. McMurphy 1906-5-8 s.n. San Mateo Pond near head of Crystal Sprins Laks on road from Woodside to Byrne's Store, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC261645  Poa annua Peter Rubtzoff 1988-5-3 9910 San Mateo San Bruno Mountain, Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road in the northwest part of the Saddle area, east of Saddle Trail Junction. Comment
  JEPS71266  Poa annua unknown 1919-7-22 211 San Mateo Ano Nuevo Comment
  JROH5400  Poa annua John H. Thomas 1977-2-20 18466 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC254544  Poa douglasii Robert Robertson 1954-5-1 128 San Mateo At back of beach N of San Gregorio Creek 6 Comment
  CAS-BOT-BC254545  Poa douglasii Paul F. Covel No date on label 1533 San Mateo Moss Beach Comment
  JROH5409  Poa howellii John H. Thomas 1964-4-19 10329 San Mateo Jasper Ridge Biological Preserve, Stanford University. Area below dam in among redwoods near creek. Comment
  CAS-BOT-BC261644  Poa infirma Peter Rubtzoff 1988-5-3 9912 San Mateo San Bruno Mountain, Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road in the northwest part of the Saddle area, east of Saddle Trail Junction. Comment
  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
  POM204731  Poa unilateralis C. F. Baker 1904-5-24 3259 San Mateo Montara Point. Comment
  SJSU15813  Poa unilateralis subsp. unilateralis John Rawlings, Toni Corelli 2016-5-13 1895 San Mateo Bean Hollow State Beach south bluff above beach 11 Comment
  SD73212  Pogogyne serpylloides Darley F. Howe 1969-6-10 4642 San Mateo 18.5 miles north of San Mateo-Santa Cruz county line on Highway 1. Comment
  CAS-BOT-BC232896  Polemonium carneum A. D. E. Elmer 1903-7-1 4771 San Mateo Pilarcitos Stone Dam Comment
  UC1481762  Polygonum C. C. Hall 1922-5-17 108 -7 San Mateo Montara Comment
  UC1101136  Polygonum amphibium var. stipulaceum Verne Grant and Herbert L. Mason 1946-8-28 13082 San Mateo San Francisco county prison; sag pond at entrance Comment
  CAS-BOT-BC166941  Polygonum arenastrum Peter Rubtzoff 1975-10-11 8421 San Mateo Pond, northwest of and across old Guadalupe Road from Saddle area (which is located on north side of Guadalupe Canyon Parkway west of Radio Road junction). Comment
  CAS-BOT-BC414236  Polygonum aviculare subsp. depressum Ira L. Wiggins 1980-8-29 22251 San Mateo Sandy bed of San Francisquito Creek, 100--200 m upstream from Pope Street Bridge, Menlo Park Comment
  JEPS81637  Polygonum aviculare subsp. depressum J. C. Hickman 1981-7-21 1003 San Mateo Ano Nuevo Reserve; near center Comment
  UCD164344  Polygonum aviculare subsp. depressum Peter Rubtzoff 1977-4-16 8953 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  RSA176406  Polygonum coccineum John H. Thomas 1964-10-2 10510 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Edge of Searsville Lake near Bridge. Comment
  UC563966  Polygonum convolvulus Ira L. Wiggins 1935-8-24 8159 San Mateo roadside 2 mi e Half Moon Bay Comment
  CAS-BOT-BC109239  Polygonum paronychia V. F. Hesse 1954-7-30 1343 San Mateo Near Pebble Beach. 15 Comment
  POM216540  Polygonum paronychia D. D. Keck 1931-10-5 1288 San Mateo 1 mile N of Salada Beach, 200 meters from ocean. Comment
  RSA18362  Polygonum paronychia Carl B. Wolf 1929-5-25 3726 San Mateo Pebble Beach, S of Pescadero Comment
  UCR66558  Polygonum paronychia David D. Keck 1931-10-5 1288 San Mateo 1 mi north of Salada Beach 200 Comment
  UC42913  Polypodium J. Burtt Davy 1893-6-22 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC76945  Polypodium californicum H. L. Mason 1921-6-1 s.n. San Mateo Pebble Beach near Pescadero Comment
  CAS-BOT-BC76902  Polypodium californicum George Oberlander 1951-3-11 1157 San Mateo San Francisco Watershed Reserve - Pilarcitos Canyon Comment
  SJSU10491  Polypodium scouleri S. H. Casey 1969-5-18 248 San Mateo Fern Rock, San Bruno Mt. Comment
  CAS-BOT-BC233160  Polypogon interruptus P. R. Hichborn 1920-5-13 217 San Mateo Santa Cruz Peninsula. Salt marshes N of Palo Alto Comment
  JROH5427  Polypogon interruptus John H. Thomas 1959-8-22 8085 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along stream below dam. Comment
  JROH5429  Polypogon interruptus John H. Thomas 1961-6-14 9545 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along stream below dam. Comment
  JROH5677  Polypogon interruptus John Rawlings 2014-5-28 1249 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Up-stream edge of low flow crossing of San Francisquito Creek. 81 Comment
  CAS-BOT-BC237351  Polypogon monspeliensis John H. Thomas 1963-7-19 10189 San Mateo Ano Nuevo Island, about 0.5 mile off shore about 20 miles NW of Santa Cruz Comment
  JROH5448  Polypogon monspeliensis John Hunter Thomas 1977-6-16 18785 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry lake bed Comment
  RSA276359  Polypogon monspeliensis Jane Turner, Francis M. Ball 1962-7-7 SK&F- 1082 San Mateo Highway 1, ca. 10 miles N of Santa Cruz County line. Comment
  HSC10835  Polypogon monspeliensis B. Francis 1964-5-5 47 San Mateo 5 miles N of San Francisco International Airport. Comment
Read comments
Jul 2 2009
  CAS-BOT-BC237589  Polypogon viridis Philip Wheeler 1965-6-8 s.n. San Mateo San Bruno Mountain. Crocker Industrial Park Comment
  JROH4813  Polypogon viridis John Hunter Thomas 1979-5-22 19573 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH51  Polystichum dudleyi Ann Lambrecht 2005-10-26 22 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Trail 2 on creek bank 60 m beyond first drainage past intersection of Trails 1 & 5. Comment
  CAS-BOT-BC76609  Polystichum munitum D. E. Breedlove 1973-9-26 35557 San Mateo Pescadero Creek County Park 365 Comment
  UC1063668  Polystichum munitum T. Tyrrell 1928-9-26 11 San Mateo Pomonio Creek; Santa Cruz Quadrangle, Plot 13 91 Comment
  RSA785881  Polystichum munitum Peter Rubtzoff 1976-10-5 8905 San Mateo eSaddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  RSA681612  Populus fremontii Annuschka Deb 1989-7-28 328 San Mateo YBN Demonstration Garden. Comment
  JROH5510  Potamogeton crispus Alan Grundman 1976-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  UC430  Potamogeton pectinatus J. Burtt Davy Jun 21 1893-Jun 23 1893 1131 San Mateo Pilarcitos Lake and Canyon Pilarcitos Lake Comment
  CAS-BOT-BC454005  Potamogeton pectinatus W. R. Dudley 1909-10-10 s.n. San Mateo Santa Cruz Mountain Peninsula. Crystal Springs Reservoir near Club House. Comment
  CAS-BOT-BC454008  Potamogeton pectinatus Ira L. Wiggins 1935-6-29 8051 San Mateo Pescadero Creek, about 1 mile west of Pescadero Comment
  JROH5517  Potamogeton pusillus John Hunter Thomas 1981-7-12 20710 San Mateo Jasper Ridge Biological Preserve, Stanford University. In lake along the shore Comment
  JEPS44178  Potentilla anserina subsp. pacifica Adele Lewis Grant 1917-5-6 941 San Mateo Pebble Beach nr Pescadero; Pebble Beach nr Pescadero Comment
  SD37699  Potentilla glandulosa Edith A. Purer 1933-5-10 3629 San Mateo Steven's Creek Comment
  SEINET5568963  Potentilla glandulosa H. S. Gentry 1931-1 83 San Mateo 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC144833  Potentilla rivalis George Oberlander 1950-3-18 560 San Mateo Pilarcitos Canyon Comment
  JROH4674  Prosartes hookeri John H. Thomas 1979-4-10 19448 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4676  Prosartes hookeri John Hunter Thomas 1985-4-25 23567 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC516344  Prosartes hookeri Le Roy Abrams 1902-5-20 2467 San Mateo King's Mountain Comment
  CAS-BOT-BC516348  Prosartes hookeri J. H. Thomas 1949-4-14 269 San Mateo Kings Mountain 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
  JROH4671  Prosartes hookeri John H. Thomas 1969-4-20 14900 San Mateo Jasper Ridge Biological Preserve, Stanford University. Redwood area below dam Comment
  SEINET12044826  Prosartes hookeri C. F. Baker 1903-1 5052 San Mateo Crystal Springs Lake Comment
  SEINET12054259  Prosartes hookeri Cummings, McCallum, G. A. 1933-1 s.n. San Mateo along Stevens Creek Comment
  CAS-BOT-BC517386  Prosartes smithii Mrs. Boot 1940-4-7 1731 San Mateo Canyon near Half Moon Bay and Skyline Highway junction Comment
  CAS-BOT-BC517392  Prosartes smithii A. D. E. Elmer 1903-5-1 4697 San Mateo Butano Creek Comment
  HSC24024  Prunella vulgaris subsp. lanceolata Mary Katherine Wicksten 1971-6-24 123 San Mateo Huddart Park, near entrance Comment
  RSA218028  Prunella vulgaris var. lanceolata Walter Knight, I. Knight 1963-8-5 s.n. San Mateo Colma Canyon Comment
  CAS-BOT-BC159841  Prunus cerasifera Paul Reeberg 1988-5-17 s.n. San Mateo San Bruno Mountains Comment
  CAS-BOT-BC158170  Prunus emarginata Walter Knight; Irja Knight; James Roof 1965-5-15 1198 San Mateo Bitter Cherry Ravine Comment
  CAS-BOT-BC158177  Prunus emarginata A. D. E. Elmer 1903-5-1 4523 San Mateo Searsville Lake Comment
  CAS-BOT-BC154496  Prunus ilicifolia Margaret A. Barry 1937-6-24 186 San Mateo North slope on Los Trancos Creek on Coal Mine Ridge Comment
  UCSC007421  Pseudognaphalium Randall Morgan 2010-5-29 5039 San Mateo Rockaway Beach Comment
  JEPS49085  Pseudognaphalium beneolens Lewis S. Rose 1966-8-15 66082 San Mateo w of Redwood City; Emerald Lake 91 Comment
  CAS-BOT-BC356870  Pseudognaphalium californicum R. E. Frenkel 1963-12-7 335 San Mateo San Francisco Water District, Whiting Ridge Road, ca. 0.8 mile south-west of Spring Valley Road, at Fire Warden's Gate Comment
  CAS-BOT-BC356853  Pseudognaphalium californicum Walter Knight 1963-10-7 324 San Mateo San Bruno Mountain. Cow Trough Ravine Comment
  SJSU10081  Pseudognaphalium californicum R. W. Henkel 1967-5-28 105 San Mateo Alpine Rd 4 mi N of junction with Skyline Blvd Comment
  CAS-BOT-BC357122  Pseudognaphalium luteoalbum Fred Hemphill 1973-3-1 622 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH785  Pseudognaphalium luteoalbum Toni Corelli 2006-8-16 324 San Mateo Jasper Ridge Biological Preserve, Stanford University. South of Road B, below Dennis Martin marker site 70 Comment
  CAS-BOT-BC344870  Pseudognaphalium luteoalbum Peter Rubtzoff 1977-4-14 8947 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC357130  Pseudognaphalium luteoalbum L. R. Abrams; I. L. Wiggins 1939-6-3 431 San Mateo Ano Nuevo Point Comment
  JROH773  Pseudognaphalium luteoalbum J. H. Thomas 1958-12-21 7510 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  JROH776  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
  POM358831  Pseudognaphalium luteoalbum L. C. Wheeler 1934-5-29 2600 San Mateo Stanford University, Palo Alto 61 Comment
  SD27905  Pseudognaphalium microcephalum Carl B. Wolf 1927-8-13 715 San Mateo Woodside. Comment
  CAS-BOT-BC357509  Pseudognaphalium ramosissimum John H. Thomas 1976-10-7 18391 San Mateo Along coast highway #1, 0.6 miles north of northern most road to Pigeon Pt. Lighthouse. About 4.2 miles almost due south of Pescadero 30 Comment
  OBI4193  Pseudognaphalium stramineum Lewis S. Rose 1966-8-6 66079 San Mateo San Bruno Mtn, Colma Cyn 122 Comment
  UC31976  Pseudognaphalium stramineum F. P. McLean 1874-6-1 San Mateo Pescadero Comment
  CAS-BOT-BC361566  Pseudognaphalium stramineum Phillip Wheeler 1965-5-17 s.n. San Mateo San Bruno Mountain. Cow Palace area 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-BC85908  Pseudotsuga menziesii W. R. Dudley 1893-12-3 s.n. San Mateo Santa Cruz Mountain Peninsula, Bear Gulch Comment
  RSA15295  Pseudotsuga menziesii C. B. Wolf 1927-4-3 265 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  CAS-BOT-BC362017  Psilocarphus tenellus R. S. Ferris 1925-5-1 s.n. San Mateo Selah Chamberlain Residence, Woodside Comment
  CAS-BOT-BC362029  Psilocarphus tenellus Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Ridge Road west of power lines Comment
  JROH1183  Psilocarphus tenellus D. E. Breedlove 1971-5-5 19326 San Mateo Jasper Ridge Biological Preserve, Stanford University; on bluff above San Francisquito Creek, 500 yards below Searsville Dam Comment
  JROH10  Pteridium aquilinum var. pubescens John H. Thomas 1970-5-16 15633 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  SD39954  Pteridium aquilinum var. pubescens Edith A. Purer 1933-7-27 5363 San Mateo Pigeon Point Comment
  CDA36720  Puccinellia maritima Michael Perlmutter 2011-6-15 San Mateo Burlingame, Sanchez Marsh. 0 Comment
  RSA195549  Pyracantha angustifolia John H. Thomas 1960-7-5 8809 San Mateo Near intersection of Canada road and Edgewood Road, 4 miles Westward from Redwood City. 91 Comment
  JROH3753  Pyracantha fortuneana J. H. Thomas 1960-6-8 8773 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near entrance to Searsville Lake Comment
  CAS-BOT-BC460837  Pyrola aphylla A. D. E. Elmer 1903-6-1 4297 San Mateo Pescadero Comment
  RSA0082792  Pyrola aphylla A. D. E. Elmer 1903-06 4297 San Mateo Pescadero. Comment
  POM192780  Quercus X morehus W. R. Dudley 1904-4-10 s.n. San Mateo Goat Ranch Road near Alpine Road, Black Mountain, Santa Cruz Mountain Peninsula. 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
  JROH2463  Quercus agrifolia var. agrifolia John H. Thomas 1974-6-30 17461 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC62306  Quercus chrysolepis William R. Dudley 1893-1-1 s.n. San Mateo Near Searsville (Bear G. Road) [Bear Gulch Road - San Mateo Co.?] Comment
  CAS-BOT-BC94273  Quercus durata Lewis S. Rose 1970-7-21 70074 San Mateo Emerald Lake, W of Redwood City 243 Comment
  CAS-BOT-BC94274  Quercus durata Lewis S. Rose 1964-9-5 64068 San Mateo Emerald Lake, W of Redwood City 243 Comment
  CAS-BOT-BC94279  Quercus durata H. A. Dutton 1900-2-18 s.n. San Mateo Santa Cruz Peninsula, Woodside Comment
  SJSU1086  Quercus durata C. W. Sharsmith 1951-4-6 6638 San Mateo Woodside Hills, 3 mi E of Woodside 182 Comment
  UC847969  Quercus durata Lewis S. Rose 1938-11-27 38314 San Mateo w of Redwood City; Emerald Lake 243 Comment
  UC942919  Quercus durata Lewis S. Rose 1950-5-20 50136 San Mateo w of Redwood City; Emerald Lake Region 243 Comment
  SEINET13953265 Image available Quercus durata Lewis S. Rose 1950-1 50136 San Mateo Emerald Lake region; hills w. of Redwood City; alt. ca. 800 ft. 244 Comment
  JROH2481  Quercus durata var. durata John H. Thomas 1968-5-22 14458 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2486  Quercus durata var. durata John H. Thomas 1974-6-30 17462 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC105402  Quercus kelloggii David D. Keck 1932-3-6 1395 San Mateo La Honda road above Searsville Lake, Santa Cruz Mountains Comment
  JROH2500  Quercus kelloggii John H. Thomas 1959-4-5 7664 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2509  Quercus kelloggii John Hunter Thomas 1987-5-26 24323 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD46659  Quercus kelloggii C. M. Belshaw 1936-1-25 1463 San Mateo Kings Mountain road, 4.5 miles west of Woodside, San Mateo County. South Coast Range. Comment
  UCSB1185  Quercus kelloggii Haller, John 1950-4-26 San Mateo Stanford University, near highway bridge over cree, at edge of golf course Comment
  CAS-BOT-BC134779  Quercus wislizeni John Thomas Howell 1971-4-12 47599 San Mateo Butano State Park Comment
  CAS-BOT-BC134785  Quercus wislizeni James McMurphy 1902-5-17 s.n. San Mateo Road to Kings Mt. Comment
  JROH2527  Quercus wislizeni var. frutescens W. R. Dudley 1903-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; east of Searsville Reservoir Comment
  JROH5864  Quercus wislizeni var. frutescens Toni Corelli 2003-2-21 257 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail c Comment
  CAS-BOT-BC362552  Rafinesquia californica Theo. C. Zschokke 1903-7-10 s.n. San Mateo Santa Cruz Mountain Peninsula. New Grade Road, Black Mt. Comment
  RSA18515  Rafinesquia californica C. B. Wolf 1927-7-14 605 San Mateo Summit of Kings Mountain Rd. Comment
  SEINET12086684  Ranunculus W. R. Dudley 1904-1 s.n. San Mateo Corte Madera Creek, Santa Cruz Mountain Peninsula Comment
  UC9411  Ranunculus californicus J. Burtt Davy 1895-4-20 1014 San Mateo Millbrae Comment
  JROH3470  Ranunculus californicus John H. Thomas 1968-3-31 14258 San Mateo Jasper Ridge Biological Preserve, Stanford University. Meadow near crest of NE facing slope above Webb Ranch Comment
  POM268178  Ranunculus californicus Lyman Benson 1930-5-3 2101 San Mateo Santa Cruz Mt. 244 Comment
  POM268423  Ranunculus californicus Arthur L. Cohen 1935-4-21 618 San Mateo Jasper Ridge, San Francisquito Creek. 122 Comment
  SEINET5718555 Image available Ranunculus californicus Leslie Fenster 1964-1 10 San Mateo Ca. 2.5 miles up Polhemus Road. Comment
  CAS-BOT-BC378529  Ranunculus californicus var. californicus Elizabeth McClintock; Virginia Ryder 1964-2-16 s.n. San Mateo San Bruno Mountain, Guadalupe Road Comment
  POM268180  Ranunculus californicus var. gratus Lyman Benson 1935-3-10 6251 San Mateo King's Mt. Road, Santa Cruz. San Francisco Bay, 122 Comment
  JROH3493  Ranunculus hebecarpus John Hunter Thomas 1991-4-11 24986 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grassy area near Rattlesnake Rocks Comment
  POM269212  Ranunculus hebecarpus W. R. Dudley 1894-4-11 s.n. San Mateo slope near Menlo Park Comment
  CAS-BOT-BC83417  Ranunculus lobbii J. I. McMurphy 1906-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula. Pond near Head of Crystal Springs Lakes. Comment
  CAS-BOT-BC83423  Ranunculus lobbii J McMurphy 1904-1-1 s.n. San Mateo Coal Mine Ridge. Comment
  CAS-BOT-BC83424  Ranunculus lobbii W. R. Dudley 1906-5-22 s.n. San Mateo Santa Cruz Mountain Peninsula. Coal Mine Ridge. Comment
  POM269264  Ranunculus muricatus Lyman Benson 1935-5-7 6546 San Mateo Santa Cruz Mt, San Francisco Bay, Stanford University 152 Comment
  JEPS55061  Ranunculus orthorhynchus var. bloomeri Inez Smith Mar. 1915 San Mateo Hillsboro Comment
  POM148951  Ranunculus orthorhynchus var. bloomeri A. D. E. Elmer 1903-06 4665 San Mateo San Pedro. Comment
  POM177526  Ranunculus orthorhynchus var. bloomeri L. R. Abrams 1909-4-27 s.n. San Mateo marsh land betw Woodside and Crystal Lake Comment
  CHSC39834  Ranunculus pusillus Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  CAS-BOT-BC74338  Raphanus sativus Ned Cahill 1974-4-30 214 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City Comment
  UCD115178  Raphanus sativus W. A. Harvey; J. M. Tucker 1948-6-28 1698 San Mateo 3 miles north of Pescadero. Comment
  JROH5825  Rhamnus alaternus John Rawlings 2016-2-1 1662 San Mateo Jasper Ridge Biological Preserve, Stanford University; upper Trail 10 180 Comment
  POM283036  Rhamnus californica Lyman Benson 1934-7-29 6110 San Mateo Crystal Springs Lake; Mt. Range: Santa Cruz; Watershed: S. F. Bay. 152 Comment
  RSA222805  Rhamnus californica S. S. Berry 1909-4-3 s.n. San Mateo Bear Creek Canyon Grade 259 Comment
  SEINET3292738 Image available Rhamnus californica Craig Davis 1960-11-24 D- 132 San Mateo Montara Mountain 335 Comment
  UC33635  Rhamnus californica subsp. californica Jos. Burtt Davy 1893-6-22 841 San Mateo Lake Pilarcitos Comment
  JROH3557  Rhamnus crocea Carl B. Wolf 1927-5-31 407 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3559  Rhamnus crocea John H. Thomas 1963-3-20 10029 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Westridge end of ridge. Comment
  JROH3561  Rhamnus crocea John H. Thomas 1964-4-19 10311 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry open slope below dam Comment
  JROH3564  Rhamnus crocea John H. Thomas 1977-4-28 18566 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM243723  Rhamnus tomentella subsp. tomentella Carl B. Wolf 1927-12-31 1472 San Mateo 1/2 way up Kings Mt. Comment
  CAS-BOT-BC437973  Ribes W. R. Dudley 1903-5-2 s.n. San Mateo Along fence near Iverson's Pescadero Creek, near Santa Cruz Co. Comment
  UC11717  Ribes J. Burtt Davy Jun 21 1893-Jun 23 1893 1155 San Mateo Pilarcitos Lake and Canyon Comment
  RSA101029  Ribes californicum G. Oberlander 1950-3-18 527 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve. Comment
  RSA124767  Ribes californicum John H. Thomas 1959-2-23 7518 San Mateo Jasper Ridge, about 5 mi SW of Palo Alto. 152 Comment
  RSA44518  Ribes californicum L. S. Rose 1949-3-18 49007 San Mateo Hills west of Belmont. 91 Comment
  RSA476444  Ribes californicum L. H. Jones 1909-3-5 s.n. San Mateo 600 feet on the west side of Jasper Ridge, Stanford University. Comment
Read comments
Sep 19 2011
  CAS-BOT-BC93002  Ribes californicum var. californicum A. D. E. Elmer 1903-3-1 4683 San Mateo Portola. Comment
  JEPS121444  Ribes californicum var. californicum Adam C. Schneider with C. Matt Guilliams 2013-2-2 8 San Mateo Crystal Springs Reservoir Comment
  JROH2636  Ribes californicum var. californicum John H. Thomas 1959-2-23 7518 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2650  Ribes californicum var. californicum Carol Zabel 1989-2-20 2 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 12 near intersection with Trail 10. Comment
  UCR70845  Ribes californicum var. californicum L. S. Rose 1949-3-18 49007 San Mateo San Francisco Bay Region, Hillsides west of Belmont 91 Comment
  RSA0003752  Ribes deductum C. F. Baker 1902-4-4 441 San Mateo Crystal Springs Lake Comment
  JROH2657  Ribes divaricatum var. pubiflorum John Hunter Thomas 1992-4-7 25132 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway. Comment
  CAS-BOT-BC173479  Ribes malvaceum Margaret A. Barry 1938-1-23 23 San Mateo North slope on Coal Mine Ridge Comment
  SEINET3558789 Image available Ribes malvaceum Lewis S. Rose 1933-3-2 33006 San Mateo Belmont. Comment
  CAS-BOT-BC212817  Ribes menziesii A. D. E. Elmer 1903-4-1 4496 San Mateo Portola Comment
  UC1177377  Ribes menziesii Peter H. Raven 1950-2-25 1377 San Mateo canyon above Brisbane; San Bruno Montains 182 Comment
  RSA0021751  Ribes menziesii var. leptosmum D. D. Keck 1933-2-22 1986 San Mateo Sand Hill Road, near Stanford University. 61 Comment
  JROH2666  Ribes menziesii var. menziesii John H. Thomas 1960-3-1 8538 San Mateo Jasper Ridge Biological Preserve, Stanford University. In shaded areas near San Francisquito Creek. Comment
  JROH6179  Ribes menziesii var. menziesii John Rawlings, Rebecca Reynolds 2017-11-14 2305 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 2, 400 m east of its intersection with Trail 5 99 Comment
  RSA0019107  Ribes sanguineum A. C. Life 1929-2-22 s.n. San Mateo Kings Mountain. Redwood Park. Comment
  CAS-BOT-BC144602  Ribes sanguineum var. glutinosum James McMurphy 1902-4-6 s.n. San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC144634  Ribes sanguineum var. glutinosum Le Roy Abrams 1901-2-1 1113 San Mateo Portola - Redwood Canyon [Canon] 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
  CAS-BOT-BC144645  Ribes sanguineum var. glutinosum Josephine D. Randall 1907-3-9 367 San Mateo Kings Mt. Comment
  CAS-BOT-BC144644  Ribes sanguineum var. glutinosum Reed C. Rollins 1941-3-16 2945 San Mateo dry ravine, west slope of the Santa Cruz Mts., about 35 miles south of San Francisco Comment
  RSA0019092  Ribes sanguineum var. glutinosum Ray Langham 1966-4-3 133 San Mateo King s Grove. 10 miles SE of La Honda. Santa Cruz Mountains. Pacific drainage area. 229 Comment
  RSA0019105  Ribes sanguineum var. glutinosum D. D. Keck 1932-6-1 1786 San Mateo 3 miles north of La Honda, Santa Cruz Mountains. 366 Comment
  RSA0019114  Ribes sanguineum var. glutinosum A. D. E. Elmer 1903-03 4470 San Mateo Portola Comment
  CAS-BOT-BC168725  Ribes victoris Eric Walther 1919-2-23 s.n. San Mateo Woodside Comment
  JROH1208  Rigiopappus leptocladus John Hunter Thomas 1991-5-2 25012 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM53912  Rigiopappus leptocladus C. F. Baker 1902-5-4 754 San Mateo Woodside Comment
  SJSU15949  Rigiopappus leptocladus John Rawlings, Ken Hickman 2016-5-26 1827 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; about 25 yards down-slope from the San Francisco Watershed boundary fence 122 Comment
  UC75100  Rigiopappus leptocladus C. F. Baker 1902-5-4 754 San Mateo Woodside Comment
  POM204034  Rigiopappus leptocladus L. S. Rose 1933-4-30 33130 San Mateo Redwood City Comment
  POM65453  Romanzoffia californica A. D. E. Elmer 1903-05 4482 San Mateo Towards San Mateo; Crystal Springs Lake. Comment
  UC107586  Romanzoffia californica C. F. Baker 1902-4-6 463 San Mateo Crystal Springs Lake; ; Crystal Springs Lake, San Mateo Co. Comment
  UC407071 Image available Romanzoffia californica L. R. Abrams 1915-3-23 5568 San Mateo -San Marcos rd. Crystal Springs; Santa Cruz Mt. Peninsula, Crystal Springs Comment
Read comments
Dec 31 2014
  CDA9435  Romanzoffia californica D. G. Kelch 2002-5-13 s.n. San Mateo Pilarcitos Canyon, SF watershed. 0 Comment
  CAS-BOT-BC6127  Romanzoffia suksdorfii Charles Fuller Baker 1902-4-6 463 San Mateo Crystal Springs Lake Comment
  UC1736041  Romulea rosea var. australis Dean W. Taylor 1995-3-14 14751 San Mateo Buri Buri Ridge; west of Hillsborough; west of Skyline Blvd.; San Francisco Fish & Game Refuge, San Francisco Water Department lands 152 Comment
  CAS-BOT-BC74653  Rorippa curvisiliqua George Oberlander 1949-7-30 315 San Mateo In bottom of San Francisquito Creek, about 60 m. above Pope Street bridge. Comment
  SD37966  Rorippa curvisiliqua var. curvisiliqua Jane T. Turner 1933-5-15 3671 San Mateo Mud Lake Comment
  JROH1580  Rorippa palustris subsp. palustris John Hunter Thomas 1977-6-16 18784 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC147622  Rosa californica Walter Knight; Irja Knight 1964-5-30 618 San Mateo Colma Canyon Comment
  CAS-BOT-BC389723  Rosa gymnocarpa M. K. Wicksten 1971-6-24 127 San Mateo Huddart Pk. Comment
  UC914720  Rosa gymnocarpa Delzie Demaree 1933-6-23 10386 San Mateo White House Canyon Comment
  SEINET11918000  Rosa gymnocarpa W. R. Dudley 1906-5-8 65 San Mateo near Crystal Springs Lake, Santa Cruz Mts 91 Comment
  JROH3762  Rosa gymnocarpa var. gymnocarpa John Hunter Thomas 1982-9-12 21158 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC156645  Rubus bifrons Phillip C. Wheeler 1965-7-7 s.n. San Mateo Crocker Avenue Comment
  CAS-BOT-BC152833  Rubus parviflorus Josephine D. Randall 1907-7-28 345 San Mateo Iverson's near Peter's Creek - Santa Cruz Peninsula Comment
  POM222901  Rubus parviflorus var. velutinus S. S. Berry 1909-4-2 s.n. San Mateo Bear Creek Canyon Grade 244 Comment
  CAS-BOT-BC156769  Rubus spectabilis Walter Knight; Irja Knight 1965-4-11 s.n. San Mateo From bank of Colma Creek. Colma Canyon Comment
  CAS-BOT-BC157072  Rubus ursinus L. R. Abrams 1914-10-14 5129 San Mateo [Tunitos Canon] Tunitas Canyon Comment
  CAS-BOT-BC157101  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6050 San Mateo Montara Mt. above Pt. San Pedro Comment
  RSA3892  Rubus ursinus I. L. Wiggins 1929-7-4 3775 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  UC204056  Rubus ursinus A. D. E. Elmer June, 1903 4664 San Mateo Crystal Springs Lake southern end Comment
  POM223623  Rubus vitifolius S. S. Berry 1909-3-31 s.n. San Mateo San Francisquito Creek. 61 Comment
  JROH3291  Rumex acetosella John H. Thomas 1974-5-19 17384 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3294  Rumex acetosella John Hunter Thomas 1981-5-19 20603 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3301  Rumex conglomeratus John Hunter Thomas 1982-6-7 21030 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3304  Rumex conglomeratus John Hunter Thomas 1989-6-13 24768 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC421823  Rumex conglomeratus Carl B. Wolf 1929-4-26 3658 San Mateo Woodside Comment
  CAS-BOT-BC421574  Rumex crassus Alice Eastwood; John Thomas Howell 1938-6-26 6072 San Mateo Waddell Creek Comment
  CAS-BOT-BC421575  Rumex crassus Lewis S. Rose 1954-10-4 54134 San Mateo Montara Comment
  CAS-BOT-BC433357  Rumex crispus Cherie Wetzel 1969-6-20 885 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC433822  Rumex pulcher George Oberlander 1949-7-30 342 San Mateo San Francisco Watershed Reserve. Upper Crystal Spr. Lake 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
  SD39773  Rumex salicifolius Edith A. Purer 1932-7-18 4015 San Mateo Half Moon Bay, sand dunes Comment
  CAS-BOT-BC434133  Rumex transitorius Goodman 1918-7-23 s.n. San Mateo San Pedro Valley Comment
  UC279587  Ruppia cirrhosa W. A. Setchell 1925-8-29 San Mateo Laguna de Salada Comment
  CAS-BOT-BC454176  Ruppia maritima H. L. Mason 1921-6-2 s.n. San Mateo Pebble Beach near Pescadero Comment
  CAS-BOT-BC257360  Ruta Peter Rubtzoff 1988-4-12 9901 San Mateo San Bruno Mountain, on east side of Summit Road (former Radio Road), ca. 1 mile from San Bruno Mtn. Park entrance. Comment
  SD146161  Ruta chalepensis G. K. Helmkamp, E. A. Helmkamp 1999-6-28 5003 San Mateo Pescadero Crk Watershed: Bean Hollow Rd 0.3 mi S of Pescadero Rd (SW of Pescadero). Slopes above Butano Crk. 60 Comment
  JROH1712  Sagina apetala John Pelton 1962-4-25 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near the horsemen's drinking facility Comment
  POM163965  Sagina maxima subsp. crassicaulis Copeland 1903-6-5 3329 San Mateo Montara Point. Comment
  SJSU15421  Sagina procumbens Toni Corelli 2011-8-25 709 San Mateo Ano Nuevo State Park, Cove Beach 7 Comment
  CAS-BOT-BC125944  Salix X rubens George Oberlander 1950-4-16 627 San Mateo North of San Andreas Lake Comment
  RSA119072  Salix coulteri L. S. Rose 1958-3-19 58011 San Mateo Princeton. 6 Comment
  JROH3852  Salix exigua var. hindsiana John Hunter Thomas 1988-6-2 24495 San Mateo Jasper Ridge Biological Preserve, Stanford University. Beach area, now much overgrown. Comment
  CAS-BOT-BC107857  Salix gooddingii W. R. Dudley 1902-9-21 s.n. San Mateo Causeway over Crystal Springs Lake - Santa Cruz Peninsula Comment
  UCSB18656  Salix lasiandra Schulte, John 1963-4-14 San Mateo Jasper Ridge, 3 miles SW of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 137 Comment
  CAS-BOT-BC125379  Salix lasiandra var. lasiandra A. D. E. Elmer 1900-4-1 2166 San Mateo Spanishtown Comment
  JROH3868  Salix lasiandra var. lasiandra W. R. Dudley 1903-4-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Searsville below the bridge Comment
  UCD111568  Salix lasiandra var. lasiandra J. Ed McClellan; Bonnie McClellan 1976-4-1 s.n. San Mateo Princeton. Comment
  CAS-BOT-BC107126  Salix lasiolepis Walter Knight; Irja Knight 1965-2-28 868 San Mateo Colma Canyon - San Bruno Mt. Comment
  CDA34016  Salix lasiolepis D. G. Kelch 2011-3-13 11 .056 San Mateo Near Half Moon Bay along Capistrano Creek. Comment
  JROH3863  Salix lasiolepis John H. Thomas 1967-3-26 12415 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI9820  Salix lasiolepis Lewis S. Rose 1965-3-8 65004 San Mateo Searsville Lake 122 Comment
  SBBG33482  Salix lasiolepis A. D. E. Elmer -Mar-1903 San Mateo Searsville Lake Comment
  POM281343  Salix lasiolepis Lyman D. Benson 1931-1-25 2577 San Mateo Near the Skyline Blvd. 5 miles S of La Honda Grade. 366 Comment
  CAS-BOT-BC124484  Salix lasiolepis var. lasiolepis W. R. Dudley 1894-7-11 s.n. San Mateo San Francisquito Cr. near Cedro Cottage, Stanford University Comment
  CAS-BOT-BC124488  Salix lasiolepis var. lasiolepis Lewis S. Rose 1965-3-8 65004 San Mateo Searsville Lake 121 Comment
  CAS-BOT-BC124491  Salix lasiolepis var. lasiolepis Walter Knight; Irja Knight 1965-2-28 862 San Mateo Radio Road at Summer Seep, San Bruno Mt. Comment
  SBBG33942  Salix lucida subsp. lasiandra L. S. Rose 1965-3-8 65002 San Mateo Searsville Lake 121 Comment
  CAS-BOT-BC129070  Salix scouleriana W. R. Dudley 1903-6-6 s.n. San Mateo Above Iverson's near Peterson Creek Comment
  POM167366  Salix scouleriana A. D. E. Elmer 1903-05 4864 San Mateo Iverson's Place; on the Pescadero Creek. Comment
  CAS-BOT-BC126502  Salix sitchensis W. R. Dudley 1904-3-7 69 San Mateo Bear Gulch, Santa Cruz Mts. 213 Comment
  RSA3918  Salix sitchensis W. R. Dudley 1904-3-7 69 San Mateo Bear Gulch. Santa Cruz Mtns. Santa Cruz Peninsula. 213 Comment
  RSA788841  Salix sitchensis Peter Rubtzoff 1976-3-28 8452 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  UC75015  Salix sitchensis unknown 1902-3 San Mateo King's Mt. Comment
  RSA262204  Salsola soda John H. Thomas 1974-10-6 17615 San Mateo San Mateo County. Palo Alto Yacht Harbor near airport. 0 Comment
Read comments
Apr 3 2009
  SBBG40540  Salsola soda W. Anderson 1968-8-16 San Mateo W end of Dumbarton Bridge Comment
  JROH2870  Salvia columbariae D. D. Davis 1903-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge north slope Comment
  SJSU5408  Salvia officinalis A. J. Cortopassi 1959-5-9 San Mateo 2319 Hillside Dr, Burlingame Comment
  RSA120030  Sambucus callicarpa W. R. Dudley 1950-3-16 s.n. San Mateo Near bridge over Pilancitas Creek, on road to Half-Moon Bay Comment
  RSA210942  Sambucus mexicana E. K. Balls 1969-9-18 12171 San Mateo 1 mile north of Skywood along Highway 84 from Woodside to junction with Highway 35 Comment
  CAS-BOT-BC246024  Sambucus nigra subsp. caerulea Daniel Cohen 1953-6-3 107 San Mateo Los Trancos Woods 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
  JROH1671  Sambucus nigra subsp. caerulea John H. Thomas 1973-6-15 16853 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC236466  Sambucus racemosa subsp. racemosa Alice Eastwood 1933-5-31 s.n. San Mateo Butano Creek Comment
  JEPS13391  Sambucus racemosa var. racemosa W. L. Jepson 1910-8-17 4157 San Mateo Tunitas Creek; near the sea Comment
  UCD163785  Sambucus racemosa var. racemosa Peter Rubtzoff 1988-6-9 9925 San Mateo San Bruno Mountains, upper part of East Fork Colma Creek Canyon. Comment
  JROH323  Sanicula bipinnatifida John H. Thomas 1973-3-12 16485 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH326  Sanicula bipinnatifida John Hunter Thomas 1991-5-2 25018 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC56963  Sanicula crassicaulis Steven Triano 1988-5-24 181 San Mateo Along w side of Old La Honda Road ca 0.6 mi s of Portola Road and 3.8 mi s of Woodside. 201 Comment
  JROH335  Sanicula crassicaulis John H. Thomas 1973-4-14 16552 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR280165  Sanicula crassicaulis Peter Rubtzoff 1977-4-14 8938 San Mateo San Francisco Bay Region, San Bruno Mountains, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road Junction 220 Comment
  CAS-BOT-BC166809  Sanicula crassicaulis Peter Rubtzoff 1977-4-14 8938 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  RSA784607  Sanicula crassicaulis Peter Rubtzoff 1976-6-30 8712 San Mateo San Bruno Mountains: Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  SEINET5766644 Image available Sanicula laciniata Robert A. Norris 1981-1 4122 San Mateo Open bank near small paved road: Vista Point, near Interstate Hwy. 280, ca. 1.5 SE of Jct. with State Hwy. 92, San Mateo Co., Calif. Comment
  POM283188  Satureja douglasii Lyman Benson 1930-5-26 s.n. San Mateo Stanford University. Lake Searsville. 152 Comment
  RSA445298  Satureja douglasii E. S. Spalding 1923-8-3 s.n. San Mateo Near Pulgas Tunnel. Comment
  JROH348  Scandix pecten-veneris John H. Thomas 1955-5-6 5011 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA187287  Scandix pecten-veneris John H. Thomas 1964-4-19 10314 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto Comment
  JROH363  Scandix pecten-veneris John Hunter Thomas 1987-4-30 24217 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC7526  Schoenoplectus americanus R. E. Jones 1966-4-4 22 San Mateo Ano Nuevo Beach Comment
  RSA135629  Schoenoplectus maritimus Roxana S. Ferris 1920-8-11 2037 San Mateo Santa Cruz Mountain Peninsula: End of Embarcadero Road, near Palo Alto Comment
  UC1100791  Scirpus californicus Malcolm A. Nobs, S. Galen Smith 1949-8-25 1567 San Mateo s of Rockaway Beach Comment
  SEINET3914302  Scirpus cernuus Ira L. Wiggins, Roxana S. Ferris 1939-8-2 9290 San Mateo Aon Nuevo Point.; 0 Comment
  UC1154039  Scirpus cernuus J. Clausen 1939-7-1 1745 San Mateo Ano Nuevo Point Ano Nuevo Point (in depressions in stabilized dunes) 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
  JEPS85228  Scirpus koilolepis Roy E. Buck and James A. West 1985-4-29 526 San Mateo 1.9 air km. e.-n.e. Franklin Point (ca. 0.8 air km. n.e. of Whitehouse Canyon Rd.-CA Hwy. 1 jct, just n. of Whitehouse Canyon Rd., shallow watercourse at head of minor gulch); Cascade Ranch 60 Comment
  JROH4424  Scirpus microcarpus John Rawlings, Carol Zabel, 2006-5-3 0904 San Mateo Jasper Ridge Biological Preserve, Stanford University. Downstream towards Searsville Lake from the footbridge near northwest terminus of Trail 12. 107 Comment
  UC1102717  Scirpus pungens John H. Thomas 1960-6-25 8797 San Mateo along or near small creek running into Redwood Slough between El Camino Real and rr tracks, near Maple St. Redwood City Comment
  CAS-BOT-BC519004  Scoliopus bigelovii George Oberlander 1949-4-17 87 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC519008  Scoliopus bigelovii Harold Block 1926-1-24 s. n. San Mateo Kings Mountain Comment
  CAS-BOT-BC363223  Scolymus hispanicus T. C. Fuller 1965-7-8 13755 San Mateo D. McBryde prop., 140 Eleanor Dr., Woodside Comment
  JROH4125  Scrophularia californica John H. Thomas 1974-4-25 17194 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA152269  Scrophularia californica John H. Thomas 1961-5-7 9301 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  UC1012347  Scrophularia californica F. W. Pennell and D. D. Keck 1949-5-14 25416 San Mateo above Redwood City (Emerald Lake) 45 Comment
  JROH1895  Sedum spathulifolium John H. Thomas 1971-4-25 15782 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG33418  Sedum spathulifolium A. D. E. Elmer -Jun-1903 4550 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC59056  Sedum spathulifolium G. B. Rossbach 1939-6-18 756 San Mateo Montar Mts, Ledge near no 755 on SE slope of North Peak. 396 Comment
  SJSU5889  Sedum spathulifolium S. H. Casey 1969-5-18 247 San Mateo above Fern Rock on NE side of San Bruno Mt Comment
  CAS-BOT-BC363397  Senecio aronicoides Fred Hemphill 1973-5-6 784 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC363389  Senecio aronicoides Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountain. South Power Line Ridge Comment
  CAS-BOT-BC365647  Senecio elegans Philip Wheeler 1965-6-16 s.n. San Mateo San Bruno Mountain. East end of Colma Canyon Comment
  CDA7644  Senecio elegans G. D. Barbe 1977-11-17 2354 San Mateo Thornton Beach State Park, Daly City. 0 Comment
  CAS-BOT-BC364240  Senecio sylvaticus John H. Thomas 1961-5-7 9272 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH1223  Senecio vulgaris John H. Thomas 1967-4-20 12706 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC364631  Senecio vulgaris Margaret A. Barry 1937-5-15 110 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC364641  Senecio vulgaris Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain. Slope above Hillside Blvd., South San Francisco Comment
  JROH5834  Senecio vulgaris Ann Lambrecht 2014-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. End of Trail 20 (Douglas Iris road) Comment
  CAS-BOT-BC85782  Sequoia sempervirens unspecified 1901-1-27 s.n. San Mateo Mountain side West of Preston Place 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
  CDA33644  Sesbania punicea Robin Breckenridge 2010-7-2 PDR# 1313483 San Mateo East Palo Alto; Cooley Ave. 0 Comment
  CDA43035  Setaria parviflora Eaton 2014-7-6 PDR# 010 P06220324 San Mateo Mapache Drive near Westridge Drive, Portola Valley. 0 Comment
  JROH3833  Sherardia arvensis John H. Thomas 1974-4-4 17077 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3838  Sherardia arvensis John Hunter Thomas 1992-4-23 25154 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Rattlesnake Rocks and along trail to redwoods Comment
  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
  POM223278  Sidalcea diploscypha L. S. Rose 1935-6-9 35211 San Mateo Emerald Lake, W. of Redwood City Comment
  SEINET3561109 Image available Sidalcea diploscypha Lewis S. Rose 1933-5-17 33167 San Mateo Redwood City. Comment
  UC583163  Sidalcea diploscypha Lewis S. Rose 1936-5-28 36300 San Mateo w Redwood City (Emerald Lake); , w of Redwood City 91 Comment
  SEINET11982183  Sidalcea malviflora G. A. McCallum 1933-1 s.n. San Mateo back of Stanford Campus Comment
  UC108870  Sidalcea malviflora subsp. laciniata T. S. Brandegee June 1893 San Mateo Colma Comment
  OBI48733  Sidalcea malviflora subsp. laciniata S. Bagley 1969-3-28 s.n. San Mateo Near the San Francisco Game Refuge 145 Comment
  RSA18461  Sidalcea malviflora subsp. malviflora Carl B. Wolf 1927-6-29 547 San Mateo South of Pebble Beach near Pescadero. Comment
  UC1327248  Sidalcea malviflora subsp. malviflora John T. Doyen 1966-3-28 29 San Mateo near Radio Towers at top (San Bruno Mountain); , near Radio Towers at top Comment
  CAS-BOT-BC386854  Silene gallica J. H. Thomas 1964-5-9 10377 San Mateo San Gregorio beach. Comment
  CAS-BOT-BC386858  Silene gallica H. A. Dutton 1900-4-29 s.n. San Mateo Woodside Serpentine Comment
  JROH1736  Silene gallica John Hunter Thomas 1981-5-14 20584 San Mateo Jasper Ridge Biological Preserve, Stanford University; near edge of lake below Searsville Lab Comment
  CAS-BOT-BC389201  Silene laciniata subsp. californica Ned Cahill 1974-5-18 283 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JEPS83066  Silene scouleri subsp. grandis Roy E. Buck, Randall A. Morgan, James A. West 1983-7-23 447 San Mateo ca 1.4 km w San Andreas Dam (on sw-facing slope above last curve in gravel ridge rd before intersection above San Andreas Dam, n end Sawyer Ridge); San Francisco Watershed Reserve, n end Sawyer Ridge 312 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-BC75379  Sisymbrium orientale Walter Knight; Irja Knight 1965-4-11 s.n. San Mateo San Bruno Mountains. Guadalupe Road about 0.5 mile from Radio Road. Comment
  JROH4442  Sisyrinchium bellum John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  IRVC9060  Sisyrinchium bellum P. W. Rundel 1963-6-11 1129 San Mateo San Fransisco Bay drainage area; Old La Honda Road. Santa Cruz Mountain Range 305 Comment
  UC1134665  Smilacina racemosa G. E. Sindel 1935-8-2 342 San Mateo Harington Creek Santa Cruz Quadrangle (head) Comment
  UCR115445  Smilacina stellata Don Pendleton 1996-4-5 s.n. San Mateo San Francisco Bay region, Edgewood County Park, western edge of Redwood City, along Edgewood Rd. north of the parking lot for the park 122 Comment
  RSA377730  Smilacina stellata var. sessilifolia Lewis S. Rose 1937-3-20 37005 San Mateo Moist Hills, Skyline Blvd. W. of Tanforan. 183 Comment
  CAS-BOT-BC166662  Solanum furcatum Peter Rubtzoff 1974-12-17 7941 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JROH4188  Solanum umbelliferum John H. Thomas 1968-3-17 14192 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM87735  Solanum umbelliferum L. R. Abrams 1902-1-7 2262 San Mateo Kings Mts. Comment
  RSA295084  Solanum umbelliferum Robert A. Norris, John L. Inase 1981-1-18 4093 San Mateo Near Ano Nuevo Point. (near Santa Cruz Co. line) Comment
  UC139876  Solanum umbelliferum C. F. Baker 1902-1-15 234 San Mateo w side of King's Mountain King's Mountain Comment
  JROH4183  Solanum umbelliferum Joseph J. Schweitzer 1951-4-21 16 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Road cut along road up from the lake 121 Comment
  NY820593  Solanum umbelliferum D. Demarée 1932-4-9 8981 San Mateo Los Troncos Woods Comment
  RSA523369  Solanum umbelliferum G. H. True 1936-4-5 385 San Mateo Canyon near coast between San Gregorio and Pescadero. 30 Comment
  JROH5859  Soleirolia soleirolii Toni Corelli, Ann Lambrecht 2005-7-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University, San Mateo Co.; face of Searsville Dam, west side. Comment
  UC473553  Solidago elongata Lewis B. Rose 1931-9-9 San Mateo Kings Mt. Comment
  CAS-BOT-BC365746  Solidago spathulata Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo San Bruno Mountain. Colma Canyon near old quarry Comment
  CAS-BOT-BC365750  Solidago spathulata John H. Thomas 1961-8-27 9701 San Mateo San Bruno Mountain in northern part of county 396 Comment
  UC1555381  Solidago spathulata J. A. DeBenedictis 1988-7-13 1543 San Mateo San Bruno Mountain Comment
  CAS-BOT-BC365187  Solidago velutina subsp. californica Phillip C. Wheeler 1965-8-16 s.n. San Mateo San Bruno Mountain. Lower April Brook Comment
  HSC24021  Solidago velutina subsp. californica Mary Katherine Wicksten 1971-8-20 207 San Mateo Huddart Park; area by King's Mtn. Rd., above Miwok Area Comment
  JROH1249  Soliva sessilis John Hunter Thomas 1986-5-6 24017 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1240  Soliva sessilis John H. Thomas 1965-4-28 10598 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC374496  Sonchus asper Le Roy Abrams 1901-3-16 1144 San Mateo Woodside - Menlo Park Comment
  CAS-BOT-BC374706  Sonchus oleraceus Fred Hemphill 1973-5-6 781 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 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
  JROH5519  Sparganium eurycarpum var. eurycarpum James McMurphy 1906-8-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Comment
  JROH5586  Sparganium eurycarpum var. eurycarpum John Rawlings 2012-7-9 1201 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Near upper lake (west of Portola Rd.) adjacent to power line right-of-way. 106 Comment
  JROH2225  Spartium junceum Ann Lambrecht 2009-6-4 36 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek, south side, opposite Dennis Martin marker Comment
  JROH5850  Spartium junceum Diane Renshaw 2014-2-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Corte Madera Creek Delta of Searsville Lake. 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
  JEPS51204  Spergula arvensis subsp. arvensis W. L. Jepson 1923-10-18 10257 San Mateo hills w. Colma (near ocean) Comment
  JROH1757  Spergularia John Hunter Thomas 1978-4-25 19156 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC390199  Spergularia bocconi R. I. Gilbreath 1975-8-1 0084 San Mateo In school yard on Alberta Way, Hillsborough 167 Comment
  CAS-BOT-BC390206  Spergularia bocconi Elizabeth McClintock; Paul Reeberg 1988-6-7 s.n. San Mateo San Bruno Mountains. P.G.&E. Marsh Comment
  CAS-BOT-BC390466  Spergularia macrotheca var. macrotheca W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. By grade, south slope Montara Mts. and near the ocean Comment
  CAS-BOT-BC390697  Spergularia rubra George Oberlander 1949-6-25 229 San Mateo San Francisco Watershed Reserve Comment
  RSA18263  Spiranthes romanzoffiana Carl B. Wolf 1927-6-27 460 San Mateo Los Troncos Creek, 2 mi back of Stanford University Comment
  SJSU15220  Stachys ajugoides Toni Corelli 2011-5-23 702 San Mateo Bean Hollow State Beach, Arroyo de los Frijoles Trail. Coastal bluff top south of Bean Hollow Beach 10 Comment
  POM299450  Stachys ajugoides L. S. Rose 1941-10-24 41469 San Mateo Belmont. 3 Comment
  UC306581  Stachys ajugoides var. ajugoides A. D. E. Elmer June, 1903 4260 San Mateo Crystal Springs Lake Comment
  UC32568  Stachys ajugoides var. ajugoides W. C. Blasdale 1893-6-17 San Mateo Belmont Comment
  UC702529  Stachys ajugoides var. ajugoides L. S. Rose 1941-10-24 41469 San Mateo Belmont 3 Comment
  UC635184  Stachys ajugoides var. rigida Herbert L. Mason 1927-4-24 3700 San Mateo mouth San Gregorio Creek Comment
  JEPS82539  Stachys bullata Roger Raiche 1984-5-13 40151 San Mateo San Pedro Creek Montara Mt. 30 Comment
  JROH2898  Stachys bullata John H. Thomas 1971-5-30 15977 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2916  Stachys bullata John Hunter Thomas 1992-7-24 25384 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Causeway Comment
  UCLA71403  Stachys bullata Ira L. Wiggins 1929-7-4 3783 San Mateo 4 mi w La Honda (on hill road to Pescadero) Comment
  JROH2911  Stachys bullata John Hunter Thomas 1990-7-4 24873 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road near picnic area Comment
  RSA116738  Stachys bullata W. R. Dudley 1894-7-7 s.n. San Mateo Bear Gulch Road. The Santa Cruz Mtn Peninsula. Comment
  RSA116742  Stachys bullata W. R. Dudley s.n. San Mateo El Corte Madera Road, near Stanford University. Comment
  SEINET12343829  Stachys bullata L. S. Rose 1932-5-3 32215 San Mateo San Bruno 183 Comment
  UCD125565  Stachys bullata Alan T. Whittemore 1976-5-31 136 San Mateo Alpine Road, near east end of Corte Madera Creek Trail. Comment
  UCD126015  Stachys bullata J. D. Skoss 1948-8-22 97 San Mateo San Vicente Canyon, near Montara. Comment
  UC202802  Stachys chamissonis A. D. E. Elmer July 1903 4760 San Mateo Pilarcitos Stone Dam Comment
  CAS-BOT-BC5594  Stachys rigida var. quercetorum A. A. Heller 1907-5-28 8574 San Mateo Above Crystal Springs on the Half Moon Bay road. 137 Comment
  JEPS127878  Stachys rigida var. quercetorum Adam C. Schneider with C. Matt Guilliams and Will Freyman 2013-6-24 298 San Mateo Crystal Springs Reservoir Comment
  JROH2893  Stachys rigida var. quercetorum John H. Thomas 1974-4-19 17158 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Escobar gate Comment
  NY380638  Stachys viarum A. A. Heller 1907-5-28 8581 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  UC92128  Stebbinsoseris heterocarpa T. S. Brandegee 1890-5-21 San Mateo Searsville Comment
Read comments
Nov 12 2007
  HSC31059  Stebbinsoseris heterocarpa Kenton Chambers 1952-5-24 418 San Mateo 1.2 mi. towards Woodside from Skyline junction of Woodside-La Honda Rd. Comment
  JROH1783  Stellaria media John Hunter Thomas 1978-4-20 19073 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC394063  Stellaria media Margaret A. Barry 1937-5-15 88 San Mateo Coal Mine Ridge Comment
  UC1536756  Stephanomeria elata G. H. True Jr. 1937-7-31 830 San Mateo near Skyline Blvd. (Alpine Road) 182 Comment
  CAS-BOT-BC375211  Stephanomeria elata Elizabeth McClintock; Walter Knight; Irja Knight 1967-8-1 s.n. San Mateo San Bruno Mountain. South side of Ridge Road about 200 yards south of Parking Lot Comment
  JROH1274  Stephanomeria virgata John H. Thomas 1978-9-24 19337 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1276  Stephanomeria virgata Toni Corelli 2006-8-8 316 b San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Road E at junction of Trail 14 106 Comment
  CAS-BOT-BC375908  Stephanomeria virgata George Oberlander 1950-7-15 1070 San Mateo San Francisco Watershed Reserve. On Cahill Ridge Comment
  RSA128948  Stephanomeria virgata subsp. virgata J. T. Howell 1939-10-8 15369 San Mateo Pt San Pedro. Comment
  JROH5328  Stipa lepida John Hunter Thomas 1992-5-15 25334 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
  HSC13372  Stipa pulchra L. S. Rose 1963-4-27 63000 San Mateo Skyline Blvd., W of San Mateo 91 Comment
  OBI22283  Stipa pulchra Lewis S. Rose 1963-4-27 63000 San Mateo Skyline Blvd, W of San Mateo 91 Comment
  SD175782  Stipa tenuissima L. Kuwahara 2006-6-1 1359399 San Mateo East side of Skyline Blvd., 0.75 mile south of State Highway 92. 359 Comment
  POM149336  Stylomecon heterophylla C. F. Baker 1902-5-4 745 San Mateo Woodside. Comment
  CAS-BOT-BC423012  Stylomecon heterophylla A. D. E. Elmer 1903-4-1 4921 San Mateo Spanishtown Comment
  CAS-BOT-BC271643  Symphoricarpos albus var. laevigatus W. R. Dudley 1901-5-4 s.n. San Mateo Coal Mine Canyon near head Los Trancos Creek, Santa Cruz Mountain Peninsula Comment
  JEPS29414  Symphoricarpos albus var. laevigatus L. R. Heckard 1961-7-16 1261 San Mateo near San Bruno Mt. summit (ne of transmitting station KQED); San Bruno Mt. 335 Comment
  CAS-BOT-BC237059  Symphoricarpos mollis Ned Cahill 1974-5-13 254 San Mateo Near the intersection of Canada and Edgewood Roads, about 3 mi. westward from REdwood City Comment
  CAS-BOT-BC237064  Symphoricarpos mollis Ira L. Wiggins 1925-4-1 1651 San Mateo On Kings Mountain Road three fourths of a mile above Woodside in the old cut over redwood belt. Comment
  CAS-BOT-BC237068  Symphoricarpos mollis Fred Hemphill 1973-4-15 672 San Mateo Area north of Malabar Road and Melendy Drive, San Carlos 207 Comment
  CAS-BOT-BC344895  Symphyotrichum chilense Peter Rubtzoff 1975-9-11 8376 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC99053  Symphyotrichum chilense Alice Eastwood 1914-10-1 s.n. San Mateo Mussel Rock Comment
  CAS-BOT-BC99054  Symphyotrichum chilense Alice Eastwood; John Thomas Howell Apr. 24, 1938. 5253 San Mateo Tunitas Comment
  CAS-BOT-BC99059  Symphyotrichum chilense Walter Knight; Irja Knight 1963-10-7 321 San Mateo San Bruno Mountain - Cow Trough Ravine, South San Francisco Comment
  CAS-BOT-BC99060  Symphyotrichum chilense Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo San Bruno Mountain - West Power Line Ridge at Ridge Road Comment
  OBI59917  Symphyotrichum chilense David J. Keil 1988-11-19 21201 San Mateo Highway 1, south of Half Moon Bay Comment
  UC57661  Symphyotrichum subspicatum unknown 1874-9-19 San Mateo Belmont Comment
  JEPS81901  Symphyotrichum subspicatum Roger Raiche 1982-9-6 20719 San Mateo Northeast slope Montara Mt. Montara Mt. 243 Comment
  SJSU15440  Tanacetum parthenium Toni Corelli 2011-8-31 717 San Mateo Pescadero State Beach and Marsh Natural Preserve, Round Hill Trail at the end of Water Lane Road 5 Comment
  SBBG25070  Tanacetum vulgare D. Myrick 1966-6-11 1444 San Mateo St Hwy 1, near Pescadero Comment
  CAS-BOT-BC376869  Taraxacum erythrospermum Elizabeth McClintock 1965-4-25 s.n. San Mateo San Bruno Mountain. Summit at Power Line Ridge Comment
  CHSC1159  Taraxia ovata M. Harless 1930-5-2 San Mateo Moss Beach. Comment
  SEINET4142897  Taraxia ovata James Tanno 1972-4-29 160 San Mateo Pillar Point near Princeton.; 0 6 Comment
  JROH5751  Taraxia ovata L. Nordby 1982-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Searsville Lab on the west side of Searsville Lake. Comment
  JROH366  Tauschia hartwegii John H. Thomas 1970-4-4 15540 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Searsville Lake Comment
  CAS-BOT-BC447484  Tellima grandiflora Roxana S. Ferris 1920-4-26 1964 San Mateo Pescadero near mouth of canon 152 Comment
  RSA195668  Tellima grandiflora John H. Thomas 1967-5-7 12836 San Mateo Near intersections of Bean Hollow and Pescadero roads, about 0.5 mile westward from Pescadero. 61 Comment
  UCD39286  Tetragonia expansa B. Crampton 1962-6-11 6517 San Mateo Pacifica, Rockaway Beach, State Hwy. 1. Comment
  JROH3505  Thalictrum fendleri var. polycarpum Daniel Cohen 1953-4-11 14 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Growing near roadside at edge of Searsville Lake Comment
  UC311389  Thermopsis californica var. californica A. D. E. Elmer May, 1903 4824 San Mateo Crystal Springs Lake Comment
  UC74947  Thermopsis californica var. californica C. F. Baker 1902-5-1 685 San Mateo Crystal Springs Lake Comment
  UCD93350  Thinopyrum ponticum John C. Throckmorton 1976-6-29 s.n. San Mateo La Honda, Star Route 1. Comment
  SEINET3153451  Thymus vulgaris Unknown 1870-4-10 sn San Mateo Mr. Saulmann's garden at San Mateo 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-BC66665  Thysanocarpus curvipes John H. Thomas 1971-4-24 15775 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66673  Thysanocarpus curvipes John H. Thomas 1976-4-2 18074 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
  JROH1589  Thysanocarpus curvipes John Hunter Thomas 1980-4-5 19859 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC66683  Thysanocarpus curvipes Carl B. Wolf 1929-5-17 3716 San Mateo 1 mile west of Skyline Boulevard on Alpine Road. 304 Comment
  CAS-BOT-BC447583  Tiarella trifoliata var. unifoliata W. R. Dudley 1895-6-6 s.n. San Mateo Santa Cruz Mountain Peninsula: Pescadero Creek near Iverson's Comment
  RSA95468  Tiarella trifoliata var. unifoliata L. S. Rose 1953-7-27 53053 San Mateo Kings Mountain. 610 Comment
  HSC23958  Torilis nodosa Mary Katherine Wicksten 1971-6-17 62 San Mateo Huddart Park, above Redwood Shelter Comment
  JROH391  Torilis nodosa John Hunter Thomas 1983-6-2 22327 San Mateo Jasper Ridge Biological Preserve, Stanford University; near green shack Comment
  JROH400  Torilis nodosa John Hunter Thomas 1988-4-28 24416 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC81497  Torreya californica William R. Dudley 1894-4-24 s.n. San Mateo near La Honda, Santa Cruz Mts. Comment
  RSA45321  Torreya californica I. L. Wiggins 1945-5-5 11161 San Mateo Along La Honda Creek about 1 mile above La Honda 152 Comment
  JROH4757  Toxicoscordion fremontii Richard L. Garber 1971-5-18 25 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4759  Toxicoscordion fremontii John H. Thomas 1977-4-8 18522 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD39145  Toxicoscordion fremontii Marie Cummings 1933-4-11 13 San Mateo Pescadaro. Comment
  CAS-BOT-BC377136  Tragopogon porrifolius W. R. Dudley 1897-5-12 s.n. San Mateo Santa Cruz Peninsula. On road from Bay to Menlo Park Comment
  RSA134113  Tragopogon porrifolius John H. Thomas 1958-10-28 7493 San Mateo Near intersection of Bayshore Hwy and Main St. Redwood City. Comment
  JROH3390  Trientalis latifolia John H. Thomas 1970-5-16 15630 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC23914  Trientalis latifolia Mary Katherine Wicksten 1971-6-22 87 San Mateo Huddart Park, near Madrone Area Comment
  SD227822  Trifolium G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3744 San Mateo Portola Valley: Golden Hills Rd along Los Trancos Creek. 106 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
  UC16490  Trifolium albopurpureum var. dichotomum Alice Eastwood May 1896 San Mateo Crystal Springs Comment
  CAS-BOT-BC157982  Trifolium amplectens Peter Rubtzoff; Barbara Deutsch 1979-5-27 9285 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction Comment
  JROH2234  Trifolium arvense Toni Corelli 2006-5-30 312 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road G, in the center of road that goes to Douglas' iris site, in disturbed area in large mammal camera site 4 111 Comment
  NY33700  Trifolium bicephalum A. D. E. Elmer 05 1903 4812 San Mateo San Pedro Comment
  RSA633305  Trifolium bifidum Michael A. Vincent, Ethan H. Freid, Karl Vincent 1998-4-9 8201 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
  JROH2250  Trifolium bifidum var. decipiens John H. Thomas 1958-5-10 7144 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM223327  Trifolium bifidum var. decipiens L. S. Rose 35134 San Mateo Redwood City Comment
  JROH2259  Trifolium depauperatum var. amplectens John H. Thomas 1974-4-19 17160 San Mateo Jasper Ridge Biological Preserve, Stanford University; near area H Comment
  JROH2261  Trifolium depauperatum var. amplectens John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2264  Trifolium depauperatum var. amplectens John Hunter Thomas 1982-4-28 20868 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC630933  Trifolium depauperatum var. depauperatum P. B. Kennedy 1928-5-2 10098 San Mateo e Daly city (hills) Comment
  JROH2231  Trifolium dichotomum John H. Thomas 1966-4-22 11574 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2288  Trifolium fucatum John H. Thomas 1964-4-19 10321 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC631607  Trifolium fucatum A. A. Heller 1907-5-23 8560 San Mateo back of San Mateo (on Half Moon Bay Rd) Comment
  UCD109026  Trifolium fucatum June McCaskill 1954-5-8 290 San Mateo Moss Beach. Comment
  RSA95543  Trifolium fucatum var. fucatum L. S. Rose 1953-4-5 53014 San Mateo Redwood City, along Bayshore Highway. 3 Comment
  JROH2330  Trifolium hirtum John Hunter Thomas 1988-6-2 24498 San Mateo Jasper Ridge Biological Preserve, Stanford University; beach Comment
  SBBG39488  Trifolium hirtum L. S. Rose 1970-4-23 San Mateo Skyline Blvd, W of San Mateo 121 Comment
  CHSC39832  Trifolium microdon Maibelle Williams 1929-5-10 San Mateo Moss 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
  UCD109275  Trifolium oliganthum R. Tofsrud 1952-1 2 San Mateo Near Foster. Comment
  JROH2351  Trifolium subterraneum John Hunter Thomas 1983-4-3 21312 San Mateo Jasper Ridge Biological Preserve, Stanford University; roadside near Searsville Lab Comment
  JROH2360  Trifolium subterraneum John Hunter Thomas 1987-5-7 24264 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC729682  Trifolium variegatum Carl B. Wolf 1929-4-24 3657 San Mateo sw end Jasser Ridge; back of Stanford University 152 Comment
  LA205198  Trifolium variegatum LeRoy Abrams; 1914-4-2 5077 San Mateo Menlo Heights Comment
  RSA18091  Trifolium variegatum Carl B. Wolf 1929-4-24 365724 San Mateo south west end of Jasper Ridge, near Searsville Lake Comment
  UCSC006359  Trifolium variegatum Randall Morgan 1995-6-6 2725 San Mateo Group at Bean Hollow State Beach 2.5 mi S of Pescadero Rd. Comment
  UCSC006363  Trifolium variegatum Randall Morgan 1995-6-6 2725 San Mateo Group at Bean Hollow State Beach 2.5 mi S of Pescadero Rd. Comment
  POM20412  Trifolium variegatum var. melananthum A. D. E. Elmer 1903-05 4685 San Mateo Portola. Comment
  JROH2395  Trifolium willdenovii John H. Thomas 1958-5-10 7146 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM277649  Trifolium willdenovii Lyman D. Benson 1930-5-3 2095 San Mateo Roadside on La Honda Grade. Above Woodside. Santa Cruz Mtn range. 305 Comment
  RSA6274  Trifolium willdenovii D. D. Keck 1932-6-1 1791 San Mateo Above Woodside on La Honda Rd. E slope of Santa Cruz Mtns. Comment
  UCSC008228  Trifolium willdenovii Randall Morgan 1995-6-22 2799 San Mateo Water Tank Creek near its confluence with Pescadero Creek Comment
  SD39589  Trifolium wormskioldii Edith A. Purer 1933-7-27 5385 San Mateo 2.0 miles south of Pigeon Point. Comment
  UC80455  Trifolium wormskioldii Katharine Brandegee June 1905 San Mateo Moss Beach Comment
  POM126713  Trifolium wormskioldii R. L. Pendleton 1907-4-20 592 San Mateo Lake Merced. 30 Comment
  UCD165019  Triglochin scilloides Peter Rubtzoff 1975-5-21 7960 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UC142121  Trillium chloropetalum Michener and Bioletti March, 1893 San Mateo near Colma Comment
  UC74960  Trillium chloropetalum unknown 1902-3-9 307 San Mateo hills near Stanford University Comment
  RSA176413  Trillium chloropetalum var. chloropetalum John H. Thomas 1964-4-19 10330 San Mateo Jasper Ridge Biological experimental area, 5 miles SW of Palo Alto. Comment
  CAS-BOT-BC521008  Trillium chloropetalum var. chloropetalum James McMurphy 1902-3-22 s. n. San Mateo Near Portola Comment
  POM50396  Trillium chloropetalum var. chloropetalum Le Roy Abrams, W. W. Eggleston 1924-3-23 19560 San Mateo Coast Range, near Palo Alto. 60 Comment
  CAS-BOT-BC521065  Trillium chloropetalum var. giganteum Walter & Irja Knight 1965-3-21 996 San Mateo San Bruno Mountain Comment
  CAS-BOT-BC521068  Trillium chloropetalum var. giganteum C. F. B. 1902-3-30 431 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC521201  Trillium chloropetalum var. giganteum W. R. Dudley 1900-3-16 s.n. San Mateo Santa Cruz Peninsula: by trail north of Tripps Store, Woodside Comment
  POM193597  Trillium chloropetalum var. giganteum W. R. Dudley 1900-3-17 s.n. San Mateo Ravine south side of Montana Mountains. 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
  POM169950  Trillium ovatum A. D. E. Elmer 1903-04 4752 San Mateo Portola. Comment
  CDA39373  Trillium ovatum T. C. Fuller 1960-4-2 4081 San Mateo La Honda Rd., 1 mile north of La Honda. 0 Comment
  RSA378212  Trillium ovatum J. Doty 1969-3-26 601 San Mateo State Highway 34, 6 miles north of its junction with State Highway 38. Comment
  JROH1649  Triodanis biflora John Hunter Thomas 1979-6-12 19586 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS10697  Triphysaria eriantha subsp. rosea W. L. Jepson 1921-4-3 9117 San Mateo near Colma (Colma Canyon); Colma Canyon Comment
  UC27281  Triphysaria eriantha subsp. rosea Ivar Tidestrom May, 1894 San Mateo Comment
  CAS-BOT-BC238554  Triphysaria floribunda Alice Eastwood 1919-5-19 s.n. San Mateo San Bruno Hills, San Francisco Comment
  CAS-BOT-BC238558  Triphysaria floribunda Alice Eastwood 1915-5-6 s.n. San Mateo Burlingame Comment
  CAS-BOT-BC238569  Triphysaria floribunda L. R. A. 1902-4-13 2321 San Mateo Lake San Andreas 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
  JROH4134  Triphysaria pusilla John H. Thomas 1961-4-8 9076 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4136  Triphysaria pusilla John H. Thomas 1966-4-22 11572 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU16036  Triphysaria versicolor subsp. versicolor Toni Corelli, John Rawlings 2016-4-29 1767 San Mateo Along Atkinson Bluff Trail and throughout Cascade Field, north of Cascade Cr. Trail, in Ano Nuevo State Park 11 Comment
  CAS-BOT-BC200080  Trisetum canescens W. R. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs Lake Comment
  UCD93599  Trisetum canescens P. B. Kennedy 1916-4-1 s.n. San Mateo Daly City, Colma Canyon, S San Francisco. Comment
  JROH4736  Triteleia hyacinthina John H. Thomas 1963-5-12 10082 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4750  Triteleia laxa John H. Thomas 1974-5-29 17400 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1133960  Triteleia laxa N. Carlson 1935-6-20 71 San Mateo between Slate and Oil Creek Santa Cruz Quad. 60 Comment
  CAS-BOT-BC526359  Triteleia laxa R. R. Hebborn 1920-6-1 288 San Mateo Redwood City, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC526365  Triteleia laxa Philip C. Wheeler 1965-6-21 s.n. San Mateo Sierra Point, San Bruno Mountain 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
  IRVC12855  Triteleia peduncularis Lora Epstein 1967-5-26 43 San Mateo On Woodside Road; 1.5 mi. N of jct with Ridgeway Drive. Comment
  POM273891B  Tropidocarpum gracile Lyman Benson 1930-5-1 2047 San Mateo Stanford University. Mt. Range: San Lorenzo. 122 Comment
  JROH5533  Typha angustifolia John H. Thomas 1967-5-31 12928 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC212678  Ulex europaeus John H. Thomas 1974-5-7 17312 San Mateo San Bruno Mountain, norther part opf county. Near the Radio Broadcast Towers near summit. Comment
  CAS-BOT-BC213100  Ulex europaeus J. H. Thomas 1961-5-7 9322 San Mateo San Bruno Mountain in northern part of county Comment
  CDA4351  Ulex europaeus Ed Finley 1988-12-1 San Mateo Along south side of Hickey Boulevard, to 0.1 east of I-280, Daly City. 0 Comment
  JROH5760  Ulex europaeus John Rawlings, Bob Dodge 2016-3-1 1676 San Mateo Jasper Ridge Biological Preserve, Stanford University; hidden in plain view adjacent to the Bike Bowl 50 m west of Sun Field Station visitor parking. Comment
  JROH4223  Ulmus minor John Hunter Thomas 1989-5-11 24737 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near bridge over two parts of lake Comment
  JROH145  Umbellularia californica John H. Thomas 1984-10-22 23488 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA181986  Umbellularia californica W. L. Jepson 1922-3-19 9541 San Mateo Millbrae 183 Comment
  JROH1292  Uropappus lindleyi John Hunter Thomas 1986-5-6 24013 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC199176  Vaccinium cespitosum John H. Thomas 1961-5-7 9317 A San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC199351  Vaccinium ovatum Elmer I. Applegate 1895-3-9 307 San Mateo Summit Springs, Santa Cruz Mountains, road to La Honda Comment
  CAS-BOT-BC199360  Vaccinium ovatum J. I. McMurphy 1906-5-20 79 San Mateo Kings Mt., Santa Cruz Mts. 457 Comment
  CAS-BOT-BC199367  Vaccinium ovatum Josephine D. Randall 1907-7-28 140 San Mateo Iversons near Pescadero Creek Comment
  SD38449  Vaccinium ovatum M. C. 1933-5-23 3683 San Mateo Skyline Boulevard. Comment
  RSA0074198  Vaccinium ovatum K. Hoppough 1929-5-8 3027 San Mateo King's Mountain. Comment
  JROH4271  Verbena lasiostachys var. lasiostachys John Hunter Thomas 1991-6-9 25069 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4276  Verbena lasiostachys var. scabrida John H. Thomas 1974-10-26 17626 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC615560  Verbena lasiostachys var. scabrida Beryl O. Schreiber 1932-5-29 307 San Mateo Crystal Springs Comment
  RSA14507  Veronica americana I. L. Wiggins 1935-8-24 8162 San Mateo Marshy creek entering bay at Moss Beach. Comment
  RSA187258  Veronica persica Mary Helen Kenson 1956-4-21 133 San Mateo At 347 Alberta Way, Hillsborough, 1 mile from Skyline Blvd. Comment
  CAS-BOT-BC389667  Vicia americana Mark Nagumo 1966-4-23 s.n. San Mateo Right bank of road east of Crystal Springs Comment
  POM17349  Vicia americana var. americana C. F. Baker 1903-4-6 1972 San Mateo San Bruno Hills near S.F. [San Francisco] Comment
  UC16934  Vicia americana var. americana J. Burtt Davy Jun 21 1893-Jun 23 1893 1160 San Mateo Pilarcitos Lake and Pilarcitos Canyon; Pilarcitos Lake, Pilarcitos Canyon Comment
  RSA278067  Vicia americana var. americana Lyman D. Benson 1930-5-1 2054 San Mateo Stanford University. 91 Comment
  POM16863  Vicia exigua C. F. Baker 1902-5-4 741 San Mateo Woodside. Comment
  CDA33997  Vicia gigantea D. G. Kelch 2011-3-13 11 .054 San Mateo Near Half Moon Bay along Capistrano Creek. Comment
  JROH2433  Vicia sativa subsp. nigra John H. Thomas 1965-4-10 10559 San Mateo Jasper Ridge Biological Preserve, Stanford University; near west end of Searsville Dam Comment
  JROH2452  Vicia sativa subsp. sativa John Hunter Thomas 1988-4-21 24403 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bridge over San Francisquito Creek 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-BC264051  Viola adunca Roxana S. Ferris 1920-3-8 1767 San Mateo Montara Mountains, vicinity of South Peak 518 Comment
  SJSU15211  Viola adunca subsp. adunca Toni Corelli 2010-1-5 600 San Mateo Bean Hollow State Beach, Arroyo de los Frijoles Trail 11 Comment
  CHSC56604  Viola glabella Steven Triano 1988-5-24 169 San Mateo Ca 0.1 mi w of Old La Honda Road near Martin Creek and 0.4 air miles e of SkyLonda. 381 Comment
  CAS-BOT-BC536833  Viola glabella Roxana S. Ferris 1920-4-26 1961 San Mateo Santa Cruz Mountain Peninsula: near mouth of canon of Pescadero Crek 243 Comment
  POM128420  Viola ocellata L. R. Abrams 1902-3-16 2276 San Mateo Kings Mountain. Comment
  RSA181578  Viola ocellata E. A. McGregor 1908-3-28 s.n. San Mateo Kings Mt. Comment
  SD38905  Viola ocellata Marie Cummings 1933-4-27 2150 San Mateo Kings Mt. Comment
  RSA95500  Viola ocellata L. S. Rose 1954-5-17 54045 San Mateo Kings Mountain. 610 Comment
  SBBG34009  Viola pedunculata L. S. Rose 1968-3-26 68010 San Mateo S base of San Bruno Mtn; South San Francisco 30 Comment
  POM128418  Viola sempervirens L. R. Abrams 1902-6-7 2260 San Mateo King's Mountain. Comment
  POM134912  Viola sempervirens A. D. E. Elmer 1903-05 4565 San Mateo Kings Mountain. Comment